CN113091455B - Automatic discharging system and discharging method for roller kiln saggar - Google Patents

Abstract

The invention discloses an automatic unloading system and an automatic unloading method for roller kiln saggers. The system includes an automatic leveling device, a conveying device and an automatic rotary unloading device. The conveying device includes a longitudinal conveying roller table, a transverse conveying roller table and a turning conveying roller table. The automatic leveling device is arranged on both sides of the longitudinal conveying roller table, and is located upstream of the longitudinal conveying roller table. The automatic rotary unloading device is arranged downstream of the longitudinal conveying roller table, which includes a rotary automatic clamping mechanism, a rotary driving mechanism, a rotation angle detection mechanism, and the like. The system of the invention has the advantages of simple structure, fast unloading and low loss rate of the sagger. The system of the invention can realize the turning and unloading of materials in multiple saggers in a single row at the same time, which greatly improves the production efficiency and reduces the production cost.

Description

Automatic unloading system and unloading method for roller kiln sagger

technical field

The invention relates to a roller kiln sagger unloading device, in particular to an automatic unloading system and an automatic unloading method for a roller kiln sagger, and belongs to the technical field of roller kiln production and material transportation.

Background technique

The roller kiln is a high temperature kiln for static calcination. Roller kilns are often used for calcining powder and granular materials, such as battery materials, magnetic materials, wear-resistant materials, rare earths, ceramics, catalysts, etc. When the material needs to keep the original shape unchanged or cannot be disturbed by large-scale movement during the calcination and sintering process, the material is often loaded in the kiln furniture for calcination. Saggers, also known as crucibles or burning boats, are common kiln furniture for loading powder and granular materials. The saggers are generally recycled. After the calcination, the saggers and materials are sent out of the kiln body by the roller table, and then the materials are unloaded, the empty saggers are cleaned, and the empty saggers are transported back to the kiln from the return line to continue loading. The material to be fired, thus completing a calcination cycle. The saggers used in roller kilns are mostly square flat boxes, made of ceramics, corundum, metal, etc. In order to improve the efficiency of calcining kilns, large roller kilns are arranged in a row in the width direction to accommodate multiple saggers.

Usually, the materials calcined in the roller kiln and the sagger still maintain a relatively high temperature after leaving the kiln. Although the calcined materials and saggers are cooled by the cooling zone of the kiln body, they still have a residual temperature of 150°C to 200°C. Improper handling of calcined particles and powders during unloading can easily cause dust and pollute the environment. In addition, for some materials with high requirements, impurity pollution cannot be introduced during the unloading process. These factors bring certain difficulties to roller kiln unloading. Manual unloading of roller kilns is gradually eliminated because of its high labor intensity, high operating environment temperature, large operating dust, occupational health risks, and easy introduction of impurities. However, the use of manipulators to grasp and pinch the sagger to turn over and unload the material is relatively expensive, and it is difficult to seal the working environment, which is likely to cause dust pollution. The development of automatic closed unloading device has become the demand of technological development and social development.

Existing technology one: vacuum tube suction powder solution. CN102241395A discloses a "cooling device for powder fired in a sagger". This scheme uses a suction nozzle with a small cross-sectional area to take the material in the sagger. When the calcined material has agglomerates, and the degree of agglomeration is greater than the cross-section of the straw, it is difficult to absorb. And the device for driving the sagger and the suction nozzle to move relatively horizontally and vertically is relatively complicated.

The second prior art: the tipping unloading scheme. CN209558904U has announced " a kind of sagger automatic unloading turning device ". The device relies on a fixed baffle and a blocking mechanism to constrain the flipped saggar from falling off, and the device is only applicable to a single saggar flipped and unloaded. Moreover, the device does not clamp the sagger during the turning process. When the sagger is damaged in a certain part or has a large size deviation, the fixed baffle cannot be completely stuck, and there is a risk of the sagger falling off.

Existing technology three: tipping unloading scheme. CN103512368B has announced "the electronic powder material production line uses the sagger automatic discharging device". The device is provided with a cylinder-driven sagger clamping mechanism, which is only suitable for clamping one sagger at a time for turning over and discharging. And when the deviation of the shape and size of the sagger is large, the limit of the bead on the upper edge of the sagger is inaccurate or even unable to realize its limit function.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an automatic unloading system and an automatic unloading method for roller kiln saggers. First, use the automatic leveling device to flatten the irregularly arranged single-row saggers coming out of the roller kiln from the horizontal direction, and ensure that the single-row saggers as a whole are within the acceptable width range of the automatic rotary unloading device. Then, the saggers are transported in rows to the automatic rotary unloading device through the longitudinal conveying roller table for unloading. When the automatic rotary unloading device rotates from the horizontal position of 0° to the vertical position of 90°, the structure of the hollow square box (cube or rectangular parallelepiped empty box structure) composed of the rotary automatic clamping mechanism and the rotary bracket is within itself. Under the action of gravity and under the action of gravity of a single row of saggers containing materials (dual gravity action), the shape changes (from a cube or cuboid structure to an inclined hexahedron structure, and the hexahedron has a pair of sides changing from a rectangle to a parallelogram, There is also a pair of sides where the spacing becomes smaller so that the single-row sagger can be clamped) to realize the clamping of the sagger; when the automatic rotary unloading device rotates from a vertical 90° to a 180° horizontal position, the rotary automatic clamping mechanism The state of clamping with the rotating bracket is still maintained; when the automatic rotating unloading device is at the 180° position, the material in the sagger is basically discharged, and then the gas blowing device blows out the gas to blow out the remaining material in the sagger. When the automatic rotary unloading device returns from the 180° horizontal position to the vertical 90° position, the single-row sagger is still tightly clamped. When the automatic rotary unloading device returns from the vertical 90° to the 0° horizontal position, the hollow square box (cube or cuboid empty box structure) structure composed of the rotary automatic clamping mechanism and the rotary bracket is under the action of its own gravity. And the gravity action (double gravity action) of single-row empty saggar restores the initial state, and then loosens the clamping to saggar. The unloaded single-row empty sagger enters the sagger return line (carriage return conveyor roller) through the horizontal conveying roller table and the curved conveying roller table, and sends the sagger back to the kiln end to prepare for the next loading.

In the present invention, the "longitudinal" refers to the longitudinal direction of the roller kiln, that is, the traveling direction of the sagger in the roller kiln and on the longitudinal conveying roller table, and the "transverse" and "longitudinal" are in the same horizontal plane. Vertical (refers to the level parallel to the ground). The overturning refers to overturning around a horizontal axis (rotational axis) from a side close to the longitudinal conveying roller table to a side away from the longitudinal conveying roller table. The total flip angle is about 180° (preferably 170°).

In the present invention, the "upstream and downstream" refer to the moving direction of the sagger, the direction in which the sagger is transported is "upstream", and the direction in which the sagger is transported is "downstream".

In the present invention, the "front end and end" refer to the direction of movement of the sagger, the end close to the sagger transported is the "front end", the end close to the sagger transported away is the "tail end", the front end and the tail end Both ends are at the very end.

In the present invention, when describing the "both sides, inside, and outside" of the roller conveying device, "both sides" refers to the two ends of the shaft of the roller shaft of the conveying device, and "inside" refers to the two sides that intersect perpendicularly. According to the conveying direction of the sagger, the side where the latter conveying roller is connected with the previous conveying roller is the inner side, and vice versa is the outer side.

In the present invention, the conveying device refers to a conveying roller table composed of several roller shafts, and their respective lengths and conveying directions are designed according to actual working conditions.

In the present invention, the "upper and lower" refers to "upper" in the vertical direction perpendicular to the horizontal plane, and "lower" otherwise.

In order to achieve the above object, the technical solution adopted in the present invention is specifically as follows:

According to the first embodiment of the present invention, an automatic unloading system for roller kiln saggers is provided.

An automatic unloading system for roller kiln saggers, the system includes: a conveying device, an automatic leveling device and an automatic rotary unloading device. The conveying device includes a first longitudinal conveying roller table, a second longitudinal conveying roller table and a transverse conveying roller table. The second longitudinal conveying roller table is arranged downstream of the first longitudinal conveying roller table, and the front end of the second longitudinal conveying roller table is connected with the end of the first longitudinal conveying roller table. The transverse conveying roller table is arranged downstream of the second longitudinal conveying roller table, and the end of the second longitudinal conveying roller table is connected with the inner front end of the transverse conveying roller table. The automatic leveling device is arranged on the side of the first longitudinal conveying roller table. The automatic rotary unloading device is arranged downstream of the second longitudinal conveying roller table.

Preferably, the automatic leveling device includes a first leveling mechanism, a second leveling mechanism and a leveling photoelectric switch. The first flattening mechanism and the second flattening mechanism are symmetrically arranged on both sides of the first longitudinal conveying roller table. The leveling photoelectric switch is arranged on the side of the first longitudinal conveying roller table and is located above the first longitudinal conveying roller table.

Preferably, the first flattening mechanism includes a first cylinder and a first push rod. The cylinder block of the first air cylinder is fixed on the beam on one side of the first longitudinal conveying roller table; the piston rod of the first air cylinder is vertically connected with the first push rod; the axial direction of the first push rod is perpendicular to the first push rod The direction of the roller table axis of a longitudinal conveying roller table.

Preferably, the second flattening mechanism includes a second cylinder and a second push rod; the cylinder body of the second cylinder is fixed on the side of the first longitudinal conveying roller table on the opposite side of the first cylinder; the second The piston rod of the air cylinder is vertically connected with the second push rod; the second push rod is arranged in parallel with the first push rod.

In the present invention, the lengths of the push rods (including the first push rod and the second push rod) are equal to the length of the sagger or slightly longer than the length of the sagger (for example, the length of the push rod is longer than the length of the sagger by 0.3- 10cm, preferably 0.5-5cm).

In the present invention, when the piston rods of the first cylinder and the second cylinder are fully stretched out, the distance between the two push rods (the first push rod and the second push rod) is slightly greater than the width of the single-row sagger, but needs to be less than The acceptable width of the automatic rotary unloading device.

In the present invention, the second longitudinal conveying roller table has two speeds of "slow" and "fast". Preferably, the conveying speed of the "slow" gear of the second longitudinal conveying roller table is equal to the speed of the first longitudinal conveying roller table or the conveying roller table of the roller kiln exit kiln. The "fast" gear is about 1.5-10 times, preferably 2-5 times, the speed of the "slow" gear.

Preferably, the system further includes a first separated photoelectric switch and a second separated photoelectric switch. The first separation photoelectric switch is arranged above the upstream of the second longitudinal conveying roller table and close to one end of the first longitudinal conveying roller table. The second separation photoelectric switch is arranged downstream of the second longitudinal conveying roller table and above the end roller shaft of the second longitudinal conveying roller table, preferably above the last roller shaft of the second longitudinal conveying roller table.

Preferably, the distance between the first separation photoelectric switch and the first roller axis in the second longitudinal conveying roller table is 0.25-1 times the length of the sagger, preferably 0.3-0.9 times the length of the sagger, more preferably 0.5-0.8 times the bowl length.

Preferably, the automatic rotary unloading device includes a rotary drive mechanism, a rotary support, and a rotary automatic clamping mechanism.

Preferably, the rotating support includes a rotating shaft and a rotating supporting frame beam, and the rotating supporting frame beam is fixedly connected to the rotating shaft. The rotary shaft is connected to the drive shaft of the rotary drive mechanism. The rotating support frame beam includes 2 rotating supporting longitudinal beams and 2 rotating supporting beams. The two rotating support longitudinal beams are parallel to the direction of the roller axis of the transverse conveying roller table and fixedly connected vertically to the rotating shaft. The two rotating support beams are parallel to the rotation axis and fixedly connected with the rotating support longitudinal beams. The two rotating support longitudinal beams and the two rotating supporting beams form a rectangular fixed frame.

As a preference, the rotary automatic clamping mechanism includes 2 clamping and connecting front connecting rods (referring to one end near the second longitudinal conveying roller table), 2 clamping and connecting rear connecting rods (referring to one end located away from the second longitudinal conveying roller table) one end) and clamp the bottom frame beam. The clamping bottom frame beam includes 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam. The two clamping bottom longitudinal beams are parallel to the rotating support longitudinal beams, and are independently located below the two rotating supporting longitudinal beams. The clamping bottom beam is parallel to the swivel support beam and is located directly below the swivel support beam near the axis of rotation. Two clamping bottom longitudinal beams and one clamping bottom cross beam constitute a rectangular fixed frame with one end open, and the opening position is located at one end close to the second longitudinal conveying roller table. The two clamping and connecting front connecting rods connect the front ends of the two clamping bottom longitudinal beams independently to the two ends of the rotating support beam located at the front end of the rotating supporting frame beam through a movable hinge connection. The two clamping and connecting rods connect the two ends of the clamping bottom beam independently to the two ends of the rotating supporting beam located at the rear end of the rotating supporting frame beam through a movable hinge connection mode. The rotary automatic clamping mechanism is located directly below the rotary bracket. The rotary automatic clamping mechanism and the rotary support form an inner hollow square box structure.

Preferably, the rotating support frame beam further includes several support ribs. The two ends of the several supporting tendons are respectively fixedly connected with the rotating support longitudinal beam and/or the rotating support beam.

Preferably, the clamping bottom frame beam further includes several clamping ribs. The bottom ends of the plurality of clamping ribs are fixedly connected to the clamping bottom beam, and the clamping ribs are parallel to the clamping bottom longitudinal beam. Both the clamping bottom longitudinal beam and the clamping ribs can move up and down between adjacent roller shaft gaps on the transverse conveying roller table.

Preferably, a blocking mechanism is also provided on the clamping bottom frame beam. The blocking mechanism is fixedly connected with the clamping bottom longitudinal beam and/or the clamping rib. Preferably, the blocking mechanism is one of a baffle, a bar, and a bar.

Preferably, the blocking mechanism is a baffle plate with several grooves arranged at intervals at the lower end, and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table.

Preferably, several grooves are arranged at intervals on the clamping bottom beam, and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table.

It should be noted that any of the grooves can prevent the clamping bottom beam, the baffle plate from colliding with any roller shaft in the transverse conveying roller table.

In the present invention, the automatic rotary unloading device further includes a rotation angle detection mechanism. The rotation angle detection mechanism is a command controller or a proximity switch, more preferably a proximity switch capable of detecting 0° position and 180° (preferably 170°) position.

Preferably, the automatic rotary unloading device further includes a sealing cover, and the sealing cover is integrally arranged above the rotary drive mechanism, the rotary support, and the rotary automatic clamping mechanism.

Generally, according to the needs of working conditions, the sealing cover can also be integrated with the kiln body sealing cover of the calcining kiln to form a fully sealed structure, and according to the needs of the calcined materials, protective or oxidizing gases are introduced to adapt to the atmosphere. calcination process.

As a preference, the automatic rotary unloading device further includes a discharge chute, and the discharge chute is a bucket structure with a wide top and a narrow bottom. The discharge chute is located under the rotary drive mechanism, the rotary bracket and the rotary automatic clamping mechanism as a whole, and its upper opening corresponds to the lower opening of the sealing cover. A discharge opening is arranged below the discharge chute. Preferably, the discharge port is a vacuum discharge port.

Preferably, the automatic rotary unloading device also includes a gas blowing device. The gas blowing device includes a nozzle and a gas pipe. The nozzle is arranged inside the discharge trough, and is located directly below the rotary automatic clamping mechanism after the horizontal rotation (180° or 170° horizontal rotation). The air pipe communicates with the nozzle after passing through the tank wall of the unloading tank.

Preferably, a movable inspection door is provided on the side wall and/or the top wall of the sealing cover.

Preferably, the number of the nozzles is 1-100, preferably 3-80, more preferably 5-50.

Generally, the number of nozzles is 1-5 times the number of single-row saggers, preferably 2-4 times, such as 2 times or 3 times, which can be reasonably designed according to actual working conditions.

Preferably, the conveying device further includes a turning conveying roller table and a return conveying roller table. The turning conveying roller is located downstream of the transverse conveying roller, and the front end of the turning conveying roller is connected with the end of the transverse conveying roller. The return conveying roller table is located downstream of the turning conveying roller table, and the front end of the returning conveying roller table is connected with the end of the turning conveying roller table. The conveying direction of the return conveying roller table is opposite to the conveying direction of the first longitudinal conveying roller table.

It should be noted that the purpose of designing the return conveying roller table is to send the kiln sagger back to the feed end of the calcining kiln body to prepare for the next cycle of charging.

Preferably, the system also includes a third separation photoelectric switch. The third separation photoelectric switch is arranged downstream of the transverse conveying roller table. Preferably, the third separation photoelectric switch is located above the last roller shaft in the transverse conveying roller table.

Preferably, the parts of the automatic leveling device and the automatic rotary unloading device that are in contact with the sagger are covered with heat-resistant flexible parts. Preferably, the heat-resistant flexible member is heat-resistant fluororubber.

According to the second embodiment of the present invention, there is provided a method for automatic unloading of roller kiln saggers or a method for automatic unloading using the system described in the first embodiment.

A method for automatic unloading of roller kiln saggers, the method comprises the following steps:

1) After the saggers filled with materials come out of the roller kiln, they are conveyed to the front end of the second longitudinal conveying roller through the first longitudinal conveying roller, and then the single-row saggers in the front row are passed through the second longitudinal conveying roller Separated and quickly conveyed to the horizontal conveying roller table to wait for unloading.

2) When the saggers filled with materials are conveyed on the first longitudinal conveying roller table, the single-row saggers in the same row are flattened by the automatic leveling device, so that the gap between the side walls of the same row of saggers snug fit.

3) The single-row saggers to be unloaded that have been transported to the horizontal conveying roller table are automatically turned over and unloaded by the automatic rotating unloading device. After the unloading is completed, the single-row empty saggers are sent back to the horizontal conveying roller table and then conveyed to the return line. At the same time, continue to convey a new row of single-row saggers filled with materials to the horizontal conveying roller table and wait for unloading through the second vertical conveying roller table, and thus circulate (that is, continue to repeat step 1) to step 3)).

Preferably, the method also includes the following steps:

4) In the process of unloading the single-row sagger by the automatic rotary unloading device, a gas injection device is used to blow gas into the body of the single-row sagger after turning 180° (preferably 170°), so that The residual material in the pot body of the single-row sagger can be shed.

Preferably, step 1) is specifically: after the saggar filled with materials comes out of the roller kiln, the saggers filled with materials are transported to the front end of the second longitudinal conveying roller table in units of rows through the first longitudinal conveying roller table . When the single-row sagger reaches the detection position of the first separation photoelectric switch (the light of the first separation photoelectric switch is blocked), the conveying speed of the second longitudinal conveying roller is increased, and the single-row sagger containing the material is conveyed to the horizontal direction Waiting for unloading on the conveyor roller table. When the second separation photoelectric switch located at the last roller shaft of the second longitudinal conveying roller table detects that the single row of saggers has passed completely, the conveying speed of the second longitudinal conveying roller table is restored to be consistent with that of the first longitudinal conveying roller table. This moment, the front end of the single-row saggers of the rear row has not yet arrived or has just arrived at the front end of the second longitudinal conveying roller table.

Preferably, step 2) is specifically: when the saggers filled with materials are conveyed in rows at a uniform speed on the first longitudinal conveying roller table, when the leveling photoelectric switch located on the first longitudinal conveying roller table detects that the single row of saggers begins to pass (the light of the leveling photoelectric switch is blocked), at this time the single-row sagger is just between the first leveling mechanism and the second leveling mechanism of the automatic leveling device, and the first leveling mechanism and the second leveling mechanism are started simultaneously. The flattening mechanism, the first flattening mechanism and the second flattening mechanism simultaneously push and arrange the single-row saggers in the same row from both sides of the first longitudinal conveying roller table, so that the side walls of the saggers in the same row and the side walls tight fit between them.

Preferably, step 3) is specifically: after the second separation photoelectric switch located at the last roller shaft of the second longitudinal conveying roller table detects that the single row of saggers has passed completely, start the rotary drive mechanism to drive the rotary bracket and the rotary automatic clamp The holding mechanism performs 180° (preferably 170°) turning motion of the single-row sagger in the sealed cover for discharging. During the 180° (preferably 170°) overturning movement of the rotating bracket and the rotating automatic clamping mechanism, the clamping bottom longitudinal beam and clamping ribs of the clamping bottom frame beam pass from the gap between the roller shafts of the horizontal conveying roller table The single-row sagger is rotated and lifted with an upward movement. In the process of rotating and lifting, the single-row sagger slowly approaches the blocking mechanism. At the same time, the clamping bottom frame beam is relatively The rotating support frame girder moves downward slowly and progressively. When the rotating bracket and the rotating automatic clamping mechanism are rotated to 90°, the front wall of the single-row sagger is closely attached to the blocking mechanism, and the clamping ribs for clamping the bottom frame beam are closely attached to the single-row sagger. The bottom surface, and the single-row saggers are firmly clamped between the clamping bottom frame beam and the rotating support frame beam. The rotating bracket and the rotating automatic clamping mechanism continue to overturn to 180° (preferably 170°), and the materials in the single-row sagger are dumped into the discharge chute. After the unloading is completed, the single-row empty sagger is reversed 180° (preferably 170°) through the rotating bracket and the rotating automatic clamping mechanism, and then sent back to the horizontal conveying roller table. During this process, the bottom is clamped With the assistance of the root clamping connection front connecting rod and the root clamping connection rear connecting rod, the frame beam slowly moves downward in a progressive dislocation relative to the rotating support frame beam. When the rotary support and the rotary automatic clamping mechanism rotate back to 0°, the clamping bottom frame beam and the rotary support frame beam have completely loosened the single-row empty sagger and returned to their original state. Start the horizontal conveying roller table to convey the single-row empty saggers to the return conveying roller table through the turning conveying roller table. The third separation photoelectric switch located at the last roller shaft of the horizontal conveying roller table detects that the single empty saggar has completely passed through, and then closes the horizontal conveying roller table. At the same time, continue to convey a new row of single-row saggers filled with materials to the horizontal conveying roller table to wait for unloading through the second longitudinal conveying roller table, and thus circulate.

As preferably, step 4) is specifically: when the single-row sagger is turned over to 180° (preferably 170°) by the rotating bracket and the rotary automatic clamping mechanism, start the gas injection device to the bowl of the turned single-row sagger The gas is injected into the body so that the residual materials in the pot body of the single-row sagger fall into the discharge chute.

Preferably, the number of single-row saggers is 1-12, preferably 2-8, more preferably 3-5.

As a preference, step 1) to step 4) have the following action interlocking relationship: when the second longitudinal conveying roller table is in "fast" gear operation, the automatic rotating unloading device must not rotate; when the second separation photoelectric switch detects that the light is When blocked, the automatic rotary unloading device must not rotate and run. When the angle detection mechanism of the automatic rotary unloading device detects that the device is not in the 0° position, the second longitudinal conveying roller table must not run in the "fast" gear, and the horizontal conveying roller table must not run at the same time. When the third separation photoelectric switch detects that the light is blocked, the transverse conveying roller table must not stop running. When the second longitudinal conveying roller is running in the "slow" gear, and at the same time the second separation photoelectric switch detects that the light is blocked, it should stop the operation of all movable parts of all devices at the same time, and give a fault alarm until the fault occurs. repair.

In the prior art, the materials calcined in the roller kiln and the sagger still maintain a relatively high temperature after leaving the kiln, and generally have a residual temperature of 150°C to 200°C. Manual unloading of roller kilns has the problems of high labor intensity, high working environment temperature, and large dust in the working environment, which poses risks of occupational diseases and is easy to introduce impurities, which affect product quality. When the roller kiln adopts the vacuum tube suction powder scheme, when the calcined material has agglomeration, and the agglomeration degree is greater than the cross section of the suction pipe, it is easy to cause suction difficulties, and the device for driving the sagger and the suction nozzle to move horizontally and vertically relative to each other is relatively complicated. However, the existing roller kiln sagger tipping and unloading scheme can only be applied to a single saggar turning over and unloading, and the production efficiency is low. The existing roller kiln sagger tipping and unloading scheme does not effectively clamp the sagger during the turning process. When the sagger is damaged in a certain part or has a large deviation in shape and size, the fixed baffle cannot be completely stuck, and there is a problem Risk of the sagger falling off. The unloading of roller kiln also adopts the scheme of grasping, pinching, turning and dumping by manipulator. The cost of this scheme is relatively high, and it is difficult to make a sealed and dust-free structure by manipulator, which is not conducive to popularization and application.

In the present invention, the calcined materials and the saggers are conveyed in rows by a multi-stage roller conveying device, and simultaneously on the first longitudinal conveying roller (generally, the first longitudinal conveying roller can be a section of independent conveying roller) The road, which can also be the extension of the roller table of the roller kiln, the main purpose is to provide a place for automatic leveling processing) is equipped with an automatic leveling device, through which the same row (with the axis of the roller shaft) A plurality of saggers (hereinafter referred to as single-row saggers) in the direction of rows) are pushed and flattened, so that the gap between the saggers of the single-row saggers and the side walls of the saggers is reduced or even eliminated, thereby achieving close fit. The single-row saggers that are tightly fitted in pairs continue to pass through the second longitudinal conveying roller table (the second longitudinal conveying roller table is a variable-speed conveying roller table, and its initial conveying speed is 0 or consistent with the first longitudinal conveying roller table, The conveying speed after its acceleration is then 1-5 times of the first longitudinal conveying roller table, preferably 2-4 times) to separate (if there are n rows of single row saggers on the first longitudinal conveying roller table to convey simultaneously , when the frontmost single row of saggers is transported to the second longitudinal conveying roller table, through the detection and feedback of the second separation photoelectric switch, the conveying speed of the second longitudinal conveying roller table is adjusted to accelerate, and then the frontmost single row of saggers Rapid conveying, and then achieve the purpose of separating the frontmost single-row saggers from the rear (n-1) row saggers) and transport them to the horizontal conveying roller table to wait for unloading. Finally, the single-row saggers transported to the horizontal conveying roller table are turned over and unloaded by the automatic rotary unloading device. Since the single-row saggers have been pushed and flattened by the automatic leveling device in advance, the single-row saggers are placed in pairs. Close fit, so during the flipping and unloading process, there will be no serious collision between the saggers in the same row. While realizing the simultaneous unloading of multiple saggers, it also effectively ensures the safety of the saggers and greatly reduces the The damage rate of the bowl not only improves the production efficiency, but also reduces the production cost.

In the present invention, the automatic leveling device includes a first leveling mechanism, a second leveling mechanism and a leveling photoelectric switch. The first flattening mechanism and the second flattening mechanism are symmetrically arranged on both sides of the first longitudinal conveying roller table. The first flattening mechanism and the second flattening mechanism are independently composed of cylinders and push rods. In general, the leveling photoelectric switch is located downstream of the first leveling mechanism and the second leveling mechanism. The light of photoelectric switch is blocked), at this moment, single row of saggers is just within the effective leveling arrangement range of two push rods of the first leveling mechanism and the second leveling mechanism. When the leveling photoelectric switch detects (or a certain delay can be set according to the needs of the working conditions) when a single row of saggers passes by, the two cylinders of the first leveling mechanism and the second leveling mechanism are activated immediately, The two cylinders simultaneously push out the two push rods relative to each other, and the two pushed out push rods organize the single-row saggers into a state where they fit closely together. When the two pistons push the two oppositely arranged push rods to the limit position, the distance between the two push rod parts is the total width of the single-row sagger (which can be reasonably adjusted according to actual working conditions). And in order to further protect the saggar, generally the push rod can be coated with a heat-resistant soft material (such as heat-resistant fluororubber).

In the present invention, the first separation photoelectric switch and the second separation photoelectric switch are arranged on the first longitudinal conveying roller table, generally, the initial conveying speed of the second longitudinal conveying roller table is the same as that of the first longitudinal conveying roller table , its purpose is to smoothly transition the single row of saggers from the first longitudinal conveying roller table to the second longitudinal conveying roller table. Wherein the first separation photoelectric switch is arranged at the distance (this distance refers to the vertical distance on the longitudinal direction of the horizontal plane) of the first roller shaft in the second longitudinal conveying roller table as 0.25-1 times of the sagger length (preferably 0.3-0.9 times of the length of the sagger, more preferably 0.5-0.8 times of the length of the sagger), at this time, when the first separation photoelectric switch detects that the single row of saggers passes by (the light of the first separation photoelectric switch is Blocking), and the overall center of gravity of the single-row saggers has fallen on the second longitudinal conveying roller table, at this time, the conveying speed of the second longitudinal conveying roller table can be increased, that is, the single-row saggers can be smoothly conveyed to the horizontal conveying Waiting for unloading on the roller table (the initial state of the horizontal conveying roller table is the stop state). The second separation photoelectric switch is arranged above the last roller shaft downstream of the second longitudinal conveying roller table. At this time, when the second separation photoelectric switch detects that the single row of saggers has passed completely, on the one hand the feedback information restores the second The transport speed of the longitudinal conveying roller table is the same as that of the first longitudinal conveying roller table. On the other hand, the feedback information starts the automatic rotary unloading device to unload the single-row saggers already on the horizontal conveying roller table (generally, according to the needs of actual working conditions, a certain delay can be set for starting the automatic rotary unloading device Time).

In the present invention, the automatic rotary unloading device includes a rotary drive mechanism, a rotary support and a rotary automatic clamping mechanism. Wherein, the rotating bracket includes a rotating shaft and a rotating supporting frame beam, and the rotating supporting frame beam includes 2 rotating supporting longitudinal beams and 2 rotating supporting beams, and 2 said rotating supporting longitudinal beams and 2 said rotating supporting beams form a rectangular The fixed frame (that is, the rotating support frame beam); the rotating supporting frame beam is fixedly connected to the rotating shaft (generally, one end of the two rotating supporting longitudinal beams is extended and fixedly connected to the rotating shaft). The rotary shaft is connected to the drive shaft of the rotary drive mechanism. That is, the rotation driving mechanism is started to drive the drive shaft to rotate, the rotation of the drive shaft drives the rotation of the rotation shaft, and finally the rotation of the rotating support frame beam is driven by the rotation shaft. And then realize the overturning of the whole rotating support. It should be noted that the rotation here is a horizontal flip from 0° to 180° (preferably 170°) and a turn from 180° (preferably 170°) to 0°. Wherein the initial state (ie 0°) is when the rotating support is located above the transverse conveying roller table. Further, the rotating supporting frame beam also includes several supporting ribs. The two ends of several described supporting ribs are respectively fixedly connected with the rotating support beam and/or the rotating supporting longitudinal beam (the rear end of the vertically arranged supporting rib (referring to the end away from the second longitudinal conveying roller table) can optionally fixed connection with the rotating shaft after extension).

In the present invention, the rotary automatic clamping mechanism includes two clamping and connecting front connecting rods, two clamping and connecting rear connecting rods and a clamping bottom frame beam. The clamping bottom frame beam includes 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam. The two clamping bottom longitudinal beams and one clamping bottom cross beam form a rectangular fixed frame (that is, the clamping bottom frame beam) with one end open (the opening is located at one end close to the second longitudinal conveying roller table). The clamping bottom frame beam is located directly below the rotating support frame beam, and the two clamping and connecting front connecting rods connect the front ends of the two clamping bottom longitudinal beams independently with the rotating front end of the rotating support frame beam through a movable hinge connection. The two ends of the supporting beam are connected; the two connecting rods are clamped and connected, and the two ends of the clamping bottom beam are independently connected to the two ends of the rotating supporting beam located at the rear end of the rotating supporting frame beam through a movable hinge connection ( "Front" here refers to an end close to the second longitudinal conveying roller table, otherwise it is "rear"). At this time, the rotary automatic clamping mechanism is located directly below the rotary support as a whole. Further, clamping the bottom frame beam also includes several clamping ribs. The bottom ends of the plurality of clamping ribs are fixedly connected to the clamping bottom beam, and the clamping ribs are parallel to the clamping bottom longitudinal beam (that is, the clamping ribs are all vertically arranged). Both the clamping bottom longitudinal beam and the clamping ribs can move up and down between adjacent roller shaft gaps on the transverse conveying roller table. When the rotary automatic clamping mechanism is in the initial state, the clamping bottom frame beam is located under the horizontal conveying roller table as a whole (or the clamping bottom beam and the clamping ribs are all located in the gap between the adjacent roller shafts of the horizontal conveying roller table ). The rotary automatic clamping mechanism and the rotary bracket integrally form a square box structure (cube or cuboid structure with an inner hollow) (for holding a single row of saggers). When the entire rotating bracket is flipped, it can drive the rotary automatic clamping mechanism to rotate and flip together.

In the present invention, a blocking mechanism is also provided on the clamping bottom frame beam. The blocking mechanism is fixedly connected with the clamping bottom longitudinal beam and/or the supporting rib. Preferably, the blocking mechanism is one of a baffle, a bar, and a bar. Generally, the blocking mechanism is a baffle with several grooves arranged at intervals at the lower end, and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table. Simultaneously, several same grooves are arranged at intervals on the clamping bottom beam. The setting of the groove is to better make the clamping bottom frame beam overall located under the horizontal conveying roller table (or the clamping bottom longitudinal beam and the clamping ribs are all located in the gap between the adjacent roller shafts of the horizontal conveying roller table ), to prevent the blocking mechanism or the clamping bottom longitudinal beam from being blocked by the roller shaft of the horizontal conveying roller table, thus causing the clamping bottom frame beam as a whole (especially the clamping bottom longitudinal beam and clamping ribs) to be unable to descend to the horizontal direction Below the conveyor roller table or down into the gap between adjacent rollers.

In the present invention, when the rotary automatic clamping mechanism rotates and flips along with the rotary support, firstly, the rotary support frame beam rotates along with the rotation axis (generally, the side that is close to the second longitudinal conveying roller is moved away from the second longitudinal conveying roller). One side of the roller table rotates), and because the clamping bottom frame beam is connected to the rotating support frame beam through 2 clamping connection front links and 2 clamping connection rear links, therefore, the rotation support frame beam can pass through 2 One clamping connection front connecting rod and two clamping connection rear connecting rods rotate upwards to lift the clamping bottom frame beam, and further drive the entire clamping bottom frame beam to complete a horizontal 180° (preferably 170°) flip and reset , and then complete the overturning and unloading of the single-row sagger and the reset operation of the single-row empty sagger. The whole process of rotating the supporting frame beam and clamping the bottom frame beam together for 180° (preferably 170°) overturning and reset can be mainly decomposed into the following four stages:

The first overturning stage is from 0° to 90° overturning stage: the clamping bottom longitudinal beam and the clamping ribs of the clamping bottom frame beam pass through the gap of the roller shaft from the bottom direction of the horizontal conveying roller table and will be closely attached The single-row sagger is lifted. During the process of lifting the single-row sagger, the single-row sagger as a whole is slowly moving towards the blocking mechanism (generally the gravity of the single-row sagger itself and the gravity of the material) under the action of gravity baffle) slides away and eventually abuts against the blocking mechanism. At the same time, the clamping bottom frame beam is always below the rotating support frame beam, so the clamping bottom frame beam is also under the action of gravity (the gravity of the single row of saggers and materials and the gravity of the clamping bottom frame beam itself) , through 2 clamping connection front connecting rods and 2 clamping connection rear connecting rods to slowly move downward relative to the rotating support frame beam in a gradual dislocation (2 clamping connection front connecting rods and 2 clamping connection rear The connecting rod is changed from being perpendicular to the clamping bottom frame beam and the rotating support frame beam at the same time to being obliquely intersected with both, that is, the rectangular frame composed of the clamping bottom frame beam and the rotating support frame beam is composed of a cuboid (or cube) The morphology changes to that of an inclined hexahedron (containing a pair of parallelogram sides). When the clamping bottom frame beam and the rotating support frame beam are rotated to 90°, not only the front wall of the single-row sagger is closely attached to the blocking mechanism, but also the clamping ribs clamping the bottom frame beam are also closely attached to the single-row sagger. The bottom surface of the row of saggers, and the single-row saggers are firmly clamped between the clamping bottom frame beam and the rotating support frame beam, and then the single-row saggers are firmly fixed to prevent the single-row saggers from turning over in the second Stage due to shaking and collision under the action of gravity and external force (such as centrifugal force), the sagger is broken.

The second overturning stage is overturning from 90° to 180° (preferably from 90° to 170°): the clamping bottom frame beam and the rotating support frame beam that firmly clamp the single-row sagger continue to 180° (preferably from 90° to 170°). 170°), at this time, the clamping bottom frame beam is always above the rotating support frame beam, and the clamping bottom frame beam is always firmly pressed against the bottom surface of the single-row sagger under the action of its own gravity (in this During the stage, the greater the turning angle is, the gravity of the clamping frame beam at the bottom will gradually concentrate on the single-row sagger, and then the pressure will be tighter), while the gravity of the single-row sagger will gradually act on the blocking mechanism. Slowly transfer to act on the supporting ribs until all the gravity acts on the supporting ribs. At this time, the opening of the sagger faces downward and is supported by the supporting ribs of the rotating support frame beam. Since the supporting ribs are strip-shaped , and only supports and clamps the single-row sagger, so the materials in the single-row sagger can freely fall into the discharge chute from the support ribs and the support ribs, that is, the single-row sagger The unloading operation in which the material in the sagger is dumped into the unloading chute. During the whole stage, the single-row sagger is always firmly clamped, which continues to effectively ensure the stability of the single-row sagger and facilitates smooth unloading.

The third overturning stage is overturning from 180° to 90° (preferably from 170° to 90°): the single-row empty sagger after unloading is reversed by clamping the bottom frame beam and rotating the supporting frame beam , during this process, the single-row sagger is always firmly clamped by the clamping bottom frame beam and the rotating support frame beam, but the gravity of the clamping bottom frame beam is slowly shifted from acting on the single-row empty sagger, when restored When reaching the 90° position, the gravity of clamping the bottom frame beam does not act on the single-row empty sagger, but is transferred to continue to act on the clamping connection front and rear connecting rods and the rotating support frame beam; at the same time, The gravity of the single-row empty sagger is then slowly transferred back to act on the blocking mechanism by acting on the supporting ribs, until the gravity acts on the blocking mechanism completely. Prepare for the fourth stage of placing the single-row empty saggers back on the transverse conveyor roller table.

The fourth turning stage is turning from 90° to 0°: at this stage, the single-row empty sagger that is no longer subjected to the gravity of the bottom frame beam is only close to the blocking mechanism under the action of its own gravity. In the process of turning to 0°, under the action of gravity (the gravity of the single-row empty sagger and the gravity of the clamping bottom frame beam itself), the clamping bottom frame beam is still connected to the front connecting rod and the two clamping rods by two clamps. The rear connecting rods of the clamping connection slowly carry out a gradual dislocation movement relative to the rotating support frame beam (the 2 front connecting rods of the clamping connection and the 2 rear connecting rods of the clamping connection are connected at the bottom of the clamping frame beam and the rotating frame beam by oblique intersecting at the same time) The supporting frame beam is converted back to being vertically connected with both, that is, the shape of the inclined hexahedron (including two pairs of parallelogram sides) formed by clamping the bottom frame beam and rotating support frame beam is transformed into a rectangular parallelepiped (or cube) form). At the same time, the single-row empty sagger is also slowly supported on the clamping ribs until the gravity of the single-row empty sagger all acts on the clamping ribs. When the clamping bottom frame beam and the rotating support frame beam rotate to 0°, the clamping bottom longitudinal beam and clamping ribs of the clamping bottom frame beam return to the bottom of the horizontal conveying roller table, while the single-row empty saggers return to onto the transverse conveyor rollers. Thereby complete the whole unloading operation.

It should be noted that, in order to further protect the sagger from damage, several supporting ribs, several clamping ribs and the barrier mechanism are covered with heat-resistant flexible parts. For example, the heat-resistant flexible member is heat-resistant fluororubber.

In the present invention, when the single-row empty saggar returns to the horizontal conveying roller table, the system automatically starts the horizontal conveying roller table to send the single-row empty sagger away. When the third separation photoelectric switch above the last roller shaft in the track detects that the single-row empty sagger has completely left (the light of the third separation photoelectric switch changes from being blocked once to the light is not blocked again), feedback information, and close the horizontal direction. Operation of conveyor rollers. At the same time, the rear row of single-row saggers filled with materials has completed the automatic leveling operation, and just entered the front end of the second longitudinal conveying roller table (according to the previous row of single-row saggers from entering to the second The front end of the longitudinal conveying roller table, the time it takes for the single row of empty saggers to leave the end of the horizontal conveying roller table, and the distance between two adjacent rows of saggers, and then reasonably adjust the conveying speed of the first longitudinal conveying roller table can be).

In the present invention, the system is also provided with a sealing cover, and the sealing cover is integrally set on the top of the rotary drive mechanism, the rotary support and the rotary automatic clamping mechanism (if necessary, the scope of the cover can also include the first longitudinal conveying roller table and second longitudinal conveying roller table section). By providing a sealing cover, the whole process of the single-row sagger from waiting for unloading to the completion of unloading is all completed in the sealing cover, which can effectively prevent the dust generated during unloading from polluting the environment. Further, movable inspection doors are provided on the side wall and/or the top wall of the sealing cover. It is convenient to overhaul the equipment inside the cover and replace and maintain the parts.

In the present invention, the automatic rotating unloading device further includes a discharge chute, and the discharge chute is a bucket structure with a wide top and a narrow bottom. The discharge chute is located below the rotary drive mechanism, the rotary support, and the rotary automatic clamping mechanism as a whole (also below the front end of the transverse conveying roller table), and its upper opening corresponds to the lower opening of the sealing cover. A discharge opening is arranged below the discharge chute. The discharge port is a vacuum discharge port. The discharge port is connected with the powder vacuum conveying system, which provides a slight negative pressure environment for the entire discharge chute and sealing cover, thereby preventing dust from escaping.

In the present invention, the system further includes a gas injection device. The gas blowing device includes a nozzle and a gas pipe. The nozzle is arranged inside the discharge trough, and is located directly below the rotary automatic clamping mechanism after rotating 180° (preferably 170°). The air pipe communicates with the nozzle after passing through the tank wall of the unloading tank. The gas blowing device is used to blow off the material remaining in the sagger. The timing of gas blowing is after the rotary automatic clamping mechanism is turned over 180° (preferably 170°) and stays for a certain period of time (the residence time can be reasonably designed according to actual working conditions).

In the present invention, a turning conveying roller table and a return conveying roller table are included. The turning conveying roller is located downstream of the transverse conveying roller, and the front end of the turning conveying roller is connected with the end of the transverse conveying roller. The return conveying roller table is located downstream of the turning conveying roller table, and the front end of the returning conveying roller table is connected with the end of the turning conveying roller table. The conveying direction of the return conveying roller table is opposite to the conveying direction of the first longitudinal conveying roller table. Through the setting of the turning conveying roller table and the return conveying roller table, the empty saggers after unloading can be recycled to improve production efficiency.

In the present invention, the effective width of the kiln body of the roller kiln is 0.3-2m. In the roller kiln body, the travel speed of the sagger is 1-50 m/h, preferably 3-30 m/h, more preferably 5-20 m/h. The parameters mentioned above are only preferred embodiments of the present invention, and should not be used as a basis for restricting the technical solution of the present invention, and the corresponding values can be reasonably adjusted and set according to actual working conditions.

In the present invention, the size of the sagger is 30-500mm in length, 30-500mm in width, and 5-300mm in height, preferably 50-400mm in length, 50-400mm in width, and 10-200mm in height, and more preferably 80-300mm in length , width 80-300mm, height 20-100mm. Generally, 3-5 saggers form a row in the transverse direction of the kiln body or conveying device, and the loading amount of a single sagger is about 1-5kg. The parameters mentioned above are only preferred embodiments of the present invention, and should not be used as a basis for restricting the technical solution of the present invention, and the corresponding values can be reasonably adjusted and set according to actual working conditions.

In the present invention, the width (referring to the effective length of the roller shaft) of the longitudinal conveying roller table (comprising the first longitudinal conveying roller table and the second longitudinal conveying roller table) is 0.5-3m, preferably 0.8-3m, more preferably 1m -3m; its length is 0.3-10m, preferably 0.5-8m, more preferably 0.8-1m. Its maximum conveying speed is 0.1-1m/s, preferably 0.5-1m/s. The parameters mentioned above are only preferred embodiments of the present invention, and should not be used as a basis for restricting the technical solution of the present invention, and the corresponding values can be reasonably adjusted and set according to actual working conditions.

In the present invention, the width of the transverse conveying roller table (referring to the effective length of the roller shaft) is 0.1-0.8m, preferably 0.1-0.6m, more preferably 0.1-0.5m; its length is 0.3-10m, preferably 0.5m -8m, more preferably 0.8-5m (generally, the width design of the conveying roller table should be based on the number of single-row saggers and the width of a single sagger, that is to say, the total width of the single-row saggers and the conveying The overall width of the roller table should be matched and adapted, that is, it needs to meet the requirements of safe and stable conveying of single-row saggers, and it is necessary to make the design of the conveying roller table meet the requirements of small footprint and low investment). Its maximum conveying speed is 0.1-1m/s, preferably 0.5-1m/s. The parameters mentioned above are only preferred embodiments of the present invention, and should not be used as a basis for restricting the technical solution of the present invention, and the corresponding values can be reasonably adjusted and set according to actual working conditions.

In the present invention, the gradual dislocation movement refers to: when the automatic rotary unloading device clamps the single-row sagger from the horizontal 0° position to the vertical position of 90°, clamping the bottom frame beam to clamp The connecting rod is used as a rotating movable part, and it moves vertically downward relative to the rotating support frame beam. At the same time, during the downward dislocation movement of the clamping bottom frame beam, the clamping bottom frame beam will slowly approach the rotating support frame The beam moves incrementally and finally clamps the sagger. That is to say, with Fig. 4 as a reference, during the rotation process from 0° to 90°, therefore, the clamping bottom frame beam is simultaneously carried out a downward dislocation movement and a gradual movement to the right (towards the rotating support frame beam Approaching) is a movement in two directions. In the present invention, this simultaneous movement in two directions for clamping the bottom frame beam is called a gradual dislocation movement. In the same way, the progressive dislocation movement refers to: in the process of returning from the vertical position of 90° to the horizontal position of 0°, the clamping bottom frame beam continues to use the clamping link as the rotating movable part, relative to the rotating supporting frame beam While carrying out vertical downward dislocation movement, clamping the bottom frame beam will also slowly move away from the rotating support frame beam to make gradual distance movement. In the present invention, the clamping bottom frame beam will be reset in two directions at the same time The movement is called progressive dislocation movement.

Compared with the prior art, the beneficial technology of the present invention is specifically as follows:

1. The roller kiln sagger automatic unloading system of the present invention can simultaneously realize the turning and unloading of materials in multiple saggers in a single row through the setting of the variable speed conveying roller table and the gravity clamping type automatic rotary unloading device. The advantages of simple structure, fast unloading and low loss rate of the sagger greatly improve the production efficiency and reduce the production cost.

2. The roller kiln sagger automatic unloading system of the present invention adopts the design of a parallel deformable frame-type sagger rotary automatic clamping mechanism, and only relies on the kinetic energy of the self-weight of the sagger and the rotary automatic clamping mechanism to unload the sagger. Clamping and releasing, reducing the impact damage of the clamping mechanism to the sagger during the rotation and tipping process.

3. The present invention arranges the irregularly arranged saggers through the automatic leveling device, which reduces the risk of "kiln stuck" caused by blocking the saggers out of the kiln compared with the deflector plate.

Description of drawings

Fig. 1 is a side view structural diagram of the automatic unloading system for the roller kiln sagger according to the present invention.

Fig. 2 is a top view structure diagram of the automatic unloading system for the roller kiln sagger according to the present invention.

Fig. 3a is an example diagram of the first structure of the blocking mechanism of the present invention.

Fig. 3b is an example diagram of the second structure of the blocking mechanism of the present invention.

Fig. 3c is an example diagram of the third structure of the blocking mechanism of the present invention.

Fig. 4 is an example diagram of the structural states of the rotating supporting frame beam and the clamping bottom frame beam respectively positioned at 0°, 90°, and 180° according to the present invention.

Fig. 5 is a schematic diagram of the combined structure of the rotating supporting frame beam, the clamping bottom frame beam and the roller shaft in the present invention.

Fig. 6 is a flow chart of the method for automatic unloading of the roller kiln sagger according to the present invention.

Reference signs: 1: conveying device; 11: first longitudinal conveying roller table; 12: second longitudinal conveying roller table; 13: horizontal conveying roller table; 14: turning conveying roller table; 15: carriage return conveying roller table; 2 : automatic leveling device; 21: the first leveling mechanism; 211: the first cylinder; 212: the first push rod; 22: the second leveling mechanism; 221: the second cylinder; 222: the second push rod; 23: Leveling photoelectric switch; 3: automatic rotary unloading device; 31: rotary drive mechanism; 32: rotary bracket; 321: rotary shaft; 322: rotary support frame beam; 3221: rotary support beam; 3222: rotary support longitudinal beam; 3223 : Support rib; 33: Rotary automatic clamping mechanism; 331: Clamping and connecting the front link; 332: Clamping and connecting the rear link; 333: Clamping the bottom frame beam; 3331: Clamping the bottom beam; 3332: Clamping 3333: clamping ribs; 3334: blocking mechanism; 34: sealing cover; 341: movable inspection door; 35: unloading chute; 351: discharge port; 36: gas injection device; 361: Nozzle; 362: gas pipe; 401: first separation photoelectric switch; 402: second separation photoelectric switch; 403: third separation photoelectric switch; 5: sagger.

Detailed ways

The technical solution of the present invention is illustrated below, and the protection scope of the present invention includes but not limited to the following examples.

An automatic unloading system for roller kiln saggers, the system includes: a conveying device 1 , an automatic leveling device 2 and an automatic rotary unloading device 3 . The conveying device 1 includes a first longitudinal conveying roller table 11 , a second longitudinal conveying roller table 12 and a transverse conveying roller table 13 . The second longitudinal conveying roller table 12 is arranged downstream of the first longitudinal conveying roller table 11 , and the front end of the second longitudinal conveying roller table 12 is connected with the end of the first longitudinal conveying roller table 11 . The horizontal conveying roller table 13 is arranged downstream of the second longitudinal conveying roller table 12 , and the end of the second longitudinal conveying roller table 12 is connected to the inner front end of the lateral conveying roller table 13 . The automatic leveling device 2 is arranged on the side of the first longitudinal conveying roller table 11 . The automatic rotary unloading device 3 is arranged upstream of the transverse conveying roller table 13 .

Preferably, the automatic leveling device 2 includes a first leveling mechanism 21 , a second leveling mechanism 22 and a leveling photoelectric switch 23 . The first flattening mechanism 21 and the second flattening mechanism 22 are symmetrically arranged on both sides of the first longitudinal conveying roller table 11 . The leveling photoelectric switch 23 is arranged on the side of the first longitudinal conveying roller table 11 and above the first longitudinal conveying roller table 11 .

As a preference, the first flattening mechanism 21 includes a first cylinder 211 and a first push rod 212; the cylinder body of the first cylinder 211 is fixed on the beam on one side of the first longitudinal conveying roller table 11; The piston rod of a cylinder 211 is vertically connected with the first push rod 212 ;

Preferably, the second flattening mechanism 22 includes a second cylinder 221 and a second push rod 222; the cylinder body of the second cylinder 221 is fixed on the side of the first longitudinal conveying roller table 11 on the opposite side of the first cylinder 211 part; the piston rod of the second cylinder 221 is vertically connected with the second push rod 222; the second push rod 222 is arranged parallel to the first push rod 212.

Preferably, the system further includes a first separated photoelectric switch 401 and a second separated photoelectric switch 402 . The first separation photoelectric switch 401 is arranged above the upstream of the second longitudinal conveying roller table 12 and close to one end of the first longitudinal conveying roller table 11 . The second separation photoelectric switch 402 is arranged downstream of the second longitudinal conveying roller table 12 and above the end roller shaft of the second longitudinal conveying roller table 12, preferably at the end of the last roller shaft of the second longitudinal conveying roller table 12. above.

Preferably, the distance between the first separation photoelectric switch 401 and the first roller shaft in the second longitudinal conveying roller table 12 is 0.25-1 times the length of the sagger 5, preferably 0.3-0.9 times the length of the sagger 5 , more preferably 0.5-0.8 times the length of the sagger 5.

Preferably, the automatic rotary unloading device 3 includes a rotary drive mechanism 31 , a rotary bracket 32 , and a rotary automatic clamping mechanism 33 .

Preferably, the rotating bracket 32 includes a rotating shaft 321 and a rotating supporting frame beam 322, and the rotating supporting frame beam 322 and the rotating shaft 321 are fixedly connected. The rotation shaft 321 is connected to the drive shaft of the rotation drive mechanism 31 . The rotating support frame beam 322 includes two rotating supporting longitudinal beams 3221 and two rotating supporting crossbeams 3222. The two rotating supporting longitudinal beams 3221 are parallel to the roller axis direction of the transverse conveying roller table 13 and are vertically fixedly connected to the rotating shaft 321. The two rotating support beams 3222 are parallel to the rotating shaft 321 and fixedly connected with the rotating supporting longitudinal beams 3221 . The two rotating support longitudinal beams 3221 and the two rotating supporting beams 3222 form a rectangular fixed frame.

Preferably, the rotary automatic clamping mechanism 33 includes two clamping and connecting front connecting rods 331 , two clamping and connecting rear connecting rods 332 and a clamping bottom frame beam 333 . The clamping bottom frame beam 333 includes two clamping bottom longitudinal beams 3331 and one clamping bottom cross beam 3332. The two clamping bottom longitudinal beams 3331 are parallel to the rotating support longitudinal beams 3221, and are located independently on the two rotating beams. Support the bottom of the stringer 3221. The clamping bottom beam 3332 is parallel to the rotation support beam 3222 and is located directly below the rotation support beam 3222 near the rotation axis 321 . The two clamping bottom longitudinal beams 3331 and one clamping bottom cross beam 3332 form a rectangular fixed frame with one end open, and the opening position is located at one end close to the second longitudinal conveying roller table 12 . Two clamping and connecting front connecting rods 331 independently connect the front ends of the two clamping bottom longitudinal beams 3331 to both ends of the rotating support beam 3222 located at the front end of the rotating supporting frame beam 322 through a movable hinge connection. The two clamping and connecting rods 332 connect the two ends of the clamping bottom beam 3332 independently to the two ends of the rotating supporting beam 3222 at the rear end of the rotating supporting frame beam 322 through a movable hinge connection. The rotary automatic clamping mechanism 33 is located directly below the rotary bracket 32 . The rotary automatic clamping mechanism 33 and the rotary bracket 32 form an inner hollow square box structure.

Preferably, the rotating supporting frame beam 322 further includes several supporting ribs 3223 . Both ends of the plurality of supporting ribs 3223 are fixedly connected to the rotating support longitudinal beam 3221 and/or the rotating supporting beam 3222 respectively.

Preferably, the clamping bottom frame beam 333 further includes several clamping ribs 3333 . The bottom ends of the plurality of clamping ribs 3333 are fixedly connected to the clamping bottom beam 3332 , and the clamping ribs 3333 are parallel to the clamping bottom longitudinal beam 3331 . Both the clamping bottom longitudinal beam 3331 and the clamping rib 3333 can move up and down between adjacent roller shaft gaps on the transverse conveying roller table 13 .

Preferably, a blocking mechanism 3334 is further provided on the clamping bottom frame beam 333 . The blocking mechanism 3334 is fixedly connected with the clamping bottom longitudinal beam 3331 and/or the clamping rib 3333 . Preferably, the blocking mechanism 3334 is one of a baffle, a bar, and a bar.

Preferably, the blocking mechanism 3334 is a baffle with several grooves arranged at intervals at the lower end, and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table 13 .

Preferably, several grooves are arranged at intervals on the clamping bottom beam 3332 , and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table 13 .

Preferably, the automatic rotary unloading device 3 further includes a sealing cover 34 , and the sealing cover 34 is integrally arranged above the rotary driving mechanism 31 , the rotary bracket 32 , and the rotary automatic clamping mechanism 33 .

As a preference, the automatic rotary unloading device 3 also includes a discharge trough 35, which is a bucket structure with a wide top and a narrow bottom. The discharge chute 35 is located below the rotary drive mechanism 31 , the rotary bracket 32 , and the rotary automatic clamping mechanism 33 as a whole, and its upper opening corresponds to the lower opening of the sealing cover 34 . A discharge opening 351 is provided below the discharge chute 35 . Preferably, the discharge port 351 is a vacuum discharge port.

Preferably, the automatic rotary unloading device 3 further includes a gas blowing device 36 . The gas blowing device 36 includes a nozzle 361 and a gas pipe 362 . The nozzle 361 is arranged inside the discharge trough 35 and is located directly below the horizontally rotated rotary automatic clamping mechanism 33 . The air pipe 362 communicates with the nozzle 361 after passing through the tank wall of the discharge tank 35 .

Preferably, a movable inspection door 341 is provided on the side wall and/or the top wall of the sealing cover 34 .

Preferably, the number of the nozzles 361 is 1-100, preferably 3-80, more preferably 5-50.

Preferably, the conveying device 1 further includes a turning conveying roller table 14 and a return conveying roller table 15 . The curved conveying roller table 14 is located downstream of the transverse conveying roller table 13 , and the front end of the curved conveying roller table 14 is connected to the end of the lateral conveying roller table 13 . The return conveying roller table 15 is located downstream of the turning conveying roller table 14 , and the front end of the returning conveying roller table 15 is connected to the end of the turning conveying roller table 14 . The conveying direction of the return conveying roller table 15 is opposite to the conveying direction of the first longitudinal conveying roller table 11 .

Preferably, the system further includes a third separation photoelectric switch 403 . The third separation photoelectric switch 403 is arranged downstream of the transverse conveying roller table 13 . Preferably, the third separation photoelectric switch 403 is located above the last roller shaft in the transverse conveying roller table 13 .

Preferably, the parts of the automatic leveling device 2 and the automatic rotary unloading device 3 that are in contact with the sagger 5 are covered with heat-resistant flexible parts. Preferably, the heat-resistant flexible member is heat-resistant fluororubber.

Example 1

As shown in FIG. 1 , an automatic unloading system for roller kiln saggers, the system includes: a conveying device 1 , an automatic leveling device 2 and an automatic rotating unloading device 3 . The conveying device 1 includes a first longitudinal conveying roller table 11 , a second longitudinal conveying roller table 12 and a transverse conveying roller table 13 . The second longitudinal conveying roller table 12 is arranged downstream of the first longitudinal conveying roller table 11 , and the front end of the second longitudinal conveying roller table 12 is connected with the end of the first longitudinal conveying roller table 11 . The horizontal conveying roller table 13 is arranged downstream of the second longitudinal conveying roller table 12 , and the end of the second longitudinal conveying roller table 12 is connected to the inner front end of the lateral conveying roller table 13 . The automatic leveling device 2 is arranged on the side of the first longitudinal conveying roller table 11 . The automatic rotary unloading device 3 is arranged upstream of the transverse conveying roller table 13 .

Example 2

Embodiment 1 is repeated, as shown in FIG. 2 , except that the automatic leveling device 2 includes a first leveling mechanism 21 , a second leveling mechanism 22 and a leveling photoelectric switch 23 . The first flattening mechanism 21 and the second flattening mechanism 22 are symmetrically arranged on both sides of the first longitudinal conveying roller table 11 . The leveling photoelectric switch 23 is arranged on the side of the first longitudinal conveying roller table 11 and above the first longitudinal conveying roller table 11 .

Example 3

Repeat Example 2, except that the first flattening mechanism 21 includes a first cylinder 211 and a first push rod 212; the cylinder body of the first cylinder 211 is fixed on the beam on one side of the first longitudinal conveying roller table 11; The piston rod of the first air cylinder 211 is vertically connected with the first push rod 212 ; the axial direction of the first push rod 212 is perpendicular to the roller table axis direction of the first longitudinal conveying roller table 11 .

Example 4

Repeat Example 3, except that the second pushing mechanism 22 includes a second cylinder 221 and a second push rod 222; the cylinder body of the second cylinder 221 is fixed on the first longitudinal conveying roller table on the opposite side of the first cylinder 211 11; the piston rod of the second cylinder 221 is vertically connected with the second push rod 222; the second push rod 222 is arranged parallel to the first push rod 212.

Example 5

Embodiment 4 is repeated, except that the system further includes a first separated photoelectric switch 401 and a second separated photoelectric switch 402 . The first separation photoelectric switch 401 is arranged above the upstream of the second longitudinal conveying roller table 12 and close to one end of the first longitudinal conveying roller table 11 . The second separation photoelectric switch 402 is arranged downstream of the second longitudinal conveying roller table 12 and above the last roller shaft of the second longitudinal conveying roller table 12 .

Example 6

Embodiment 5 is repeated, except that the distance between the first separation photoelectric switch 401 and the first roller axis in the second longitudinal conveying roller table 12 is 0.5 times the length of the sagger 5 .

Example 7

Embodiment 5 is repeated, except that the distance between the first separation photoelectric switch 401 and the first roller axis in the second longitudinal conveying roller table 12 is 0.6 times the length of the sagger 5 .

Example 8

Embodiment 5 is repeated, except that the distance between the first separation photoelectric switch 401 and the first roller axis in the second longitudinal conveying roller table 12 is 0.8 times the length of the sagger 5 .

Example 9

Embodiment 8 is repeated, except that the automatic rotary unloading device 3 includes a rotary drive mechanism 31 , a rotary bracket 32 , and a rotary automatic clamping mechanism 33 .

Example 10

Embodiment 9 is repeated, as shown in FIG. 5 , except that the rotating bracket 32 includes a rotating shaft 321 and a rotating supporting frame beam 322 , and the rotating supporting frame beam 322 and the rotating shaft 321 are fixedly connected. The rotation shaft 321 is connected to the drive shaft of the rotation drive mechanism 31 . The rotating support frame beam 322 includes two rotating supporting longitudinal beams 3221 and two rotating supporting crossbeams 3222. The two rotating supporting longitudinal beams 3221 are parallel to the roller axis direction of the transverse conveying roller table 13 and are vertically fixedly connected to the rotating shaft 321. The two rotating support beams 3222 are parallel to the rotating shaft 321 and fixedly connected with the rotating supporting longitudinal beams 3221 . The two rotating support longitudinal beams 3221 and the two rotating supporting beams 3222 form a rectangular fixed frame.

Example 11

Repeat Example 10, as shown in FIG. 5 , except that the rotary automatic clamping mechanism 33 includes two clamping and connecting front connecting rods 331 , two clamping and connecting rear connecting rods 332 and a clamping bottom frame beam 333 . The clamping bottom frame beam 333 includes two clamping bottom longitudinal beams 3331 and one clamping bottom cross beam 3332. The two clamping bottom longitudinal beams 3331 are parallel to the rotating support longitudinal beams 3221, and are located independently on the two rotating beams. Support the bottom of the stringer 3221. The clamping bottom beam 3332 is parallel to the rotation support beam 3222 and is located directly below the rotation support beam 3222 near the rotation axis 321 . The two clamping bottom longitudinal beams 3331 and one clamping bottom cross beam 3332 form a rectangular fixed frame with one end open, and the opening position is located at one end close to the second longitudinal conveying roller table 12 . Two clamping and connecting front connecting rods 331 independently connect the front ends of the two clamping bottom longitudinal beams 3331 to both ends of the rotating support beam 3222 located at the front end of the rotating supporting frame beam 322 through a movable hinge connection. The two clamping and connecting rods 332 connect the two ends of the clamping bottom beam 3332 independently to the two ends of the rotating supporting beam 3222 at the rear end of the rotating supporting frame beam 322 through a movable hinge connection. The rotary automatic clamping mechanism 33 is located directly below the rotary bracket 32 . The rotary automatic clamping mechanism 33 and the rotary bracket 32 form an inner hollow square box structure.

Example 12

Embodiment 11 is repeated, as shown in FIG. 5 , except that the rotating support frame beam 322 also includes several support ribs 3223 . Both ends of the plurality of supporting ribs 3223 are fixedly connected to the rotating support longitudinal beam 3221 and the rotating supporting beam 3222 respectively.

Example 13

Embodiment 12 is repeated, as shown in FIG. 5 , except that the clamping bottom frame beam 333 also includes several clamping ribs 3333 . The bottom ends of the plurality of clamping ribs 3333 are fixedly connected to the clamping bottom beam 3332 , and the clamping ribs 3333 are parallel to the clamping bottom longitudinal beam 3331 . Both the clamping bottom longitudinal beam 3331 and the clamping rib 3333 can move up and down between adjacent roller shaft gaps on the transverse conveying roller table 13 .

Example 14

Embodiment 13 is repeated, except that the clamping bottom frame beam 333 is also provided with a blocking mechanism 3334 . The blocking mechanism 3334 is fixedly connected with the clamping bottom longitudinal beam 3331 and the clamping rib 3333 . The blocking mechanism 3334 is a baffle.

Example 15

Embodiment 13 is repeated, except that the clamping bottom frame beam 333 is also provided with a blocking mechanism 3334 . The blocking mechanism 3334 is fixedly connected with the clamping bottom longitudinal beam 3331 and the clamping rib 3333 . The blocking mechanism 3334 is a gear bar.

Example 16

Repeat embodiment 14, as shown in Figure 3, only described blocking mechanism 3334 is the baffle plate that is provided with several grooves at intervals at the lower end, and any one of the grooves can be connected with any one of the transverse conveying rollers 13. The supporting rollers are snapped and matched.

Example 17

Repeat Example 16, as shown in Figure 2, only the automatic rotary unloading device 3 also includes a sealing cover 34, and the sealing cover 34 is integrally covered with the rotary drive mechanism 31, the rotary support 32, the rotary automatic clamping The top of mechanism 33.

Example 18

Repeat Example 17, as shown in FIG. 1 , except that the automatic rotary unloading device 3 also includes a discharge trough 35 , and the discharge trough 35 is a bucket structure with a wide top and a narrow bottom. The discharge chute 35 is located below the rotary drive mechanism 31 , the rotary bracket 32 , and the rotary automatic clamping mechanism 33 as a whole, and its upper opening corresponds to the lower opening of the sealing cover 34 . A discharge opening 351 is provided below the discharge chute 35 . The discharge port 351 is a vacuum discharge port.

Example 19

Repeat Example 18, except that the automatic rotary unloading device 3 also includes a gas blowing device 36 . The gas blowing device 36 includes a nozzle 361 and a gas pipe 362 . The nozzle 361 is arranged inside the discharge trough 35 and is located directly below the horizontally rotated rotary automatic clamping mechanism 33 . The air pipe 362 communicates with the nozzle 361 after passing through the tank wall of the discharge tank 35 .

Example 20

Embodiment 19 is repeated, except that a movable inspection door 341 is provided on the side wall and/or the top wall of the sealing cover 34 .

Example 21

Embodiment 20 is repeated, except that the number of nozzles 361 is three.

Example 22

Embodiment 20 is repeated, except that the number of nozzles 361 is six.

Example 23

Embodiment 22 is repeated, as shown in FIG. 2 , except that the conveying device 1 also includes a turning conveying roller table 14 and a return conveying roller table 15 . The curved conveying roller table 14 is located downstream of the transverse conveying roller table 13 , and the front end of the curved conveying roller table 14 is connected to the end of the lateral conveying roller table 13 . The return conveying roller table 15 is located downstream of the turning conveying roller table 14 , and the front end of the returning conveying roller table 15 is connected to the end of the turning conveying roller table 14 . The conveying direction of the return conveying roller table 15 is opposite to the conveying direction of the first longitudinal conveying roller table 11 .

Example 24

Embodiment 23 is repeated, except that the system further includes a third separation photoelectric switch 403 . The third separation photoelectric switch 403 is arranged downstream of the transverse conveying roller table 13 . The third separation photoelectric switch 403 is located above the last roller shaft in the transverse conveying roller table 13 .

Example 25

Repeat Example 24, except that the parts of the automatic leveling device 2 and the automatic rotary unloading device 3 that are in contact with the sagger 5 are covered with heat-resistant flexible parts.

Example 26

Repeat Example 25, except that the heat-resistant flexible member is heat-resistant fluororubber.

Example 27

Repeat embodiment 26, but the quantity of single-row saggers 5 is three.

Example 28

Repeat embodiment 27, but the quantity of single-row saggers 5 is 5.

Method Example 1

The length of the first longitudinal conveying roller table 11 is 5m, the effective width is 1.2m, and the conveying speed is 0.05m/s.

The length of the second longitudinal conveying roller table 12 is 1.5m, the effective width is 1.2m, and the slow conveying speed is 0.05m/s. The fast conveying speed is 0.5m/s.

The length of the horizontal conveying roller table 13 is 1.7m, the effective width is 500mm, the initial state is the stop state, and the conveying speed in the conveying state is 0.5m/s.

The size of the sagger 5 is: length 270mm, width 270mm, height 70mm. The charging capacity of a single sagger is 2kg; the number of single-row saggers is 3.

Leveling stage: after the saggers 5 filled with materials come out of the roller kiln, they are transported through the first longitudinal conveying roller table 11, and are conveyed in rows in the transverse direction of the first longitudinal conveying roller table 11, when the single-row saggers 5 When conveying on the first longitudinal conveying roller table 11 just completely enters between the first flattening mechanism 21 and the second flattening mechanism 22 of the automatic leveling device 2, at this time the light of the leveling photoelectric switch 23 is picked up by the single row box Blocked by the bowl 5, then the first push-flat mechanism 21 and the second push-flat mechanism 22 are started to push the single-row sagger 5 in the horizontal direction, so that the side wall of the single-row sagger 5 and the side wall tightly fit. Then, the first bulldozing mechanism and the second bulldozer mechanism immediately return to recover to the initial shrinkage state.

Separation stage: continue to convey the single row of saggers 5 to the front end of the second longitudinal conveying roller table 12, and at the same time, a pair of first photoelectric separation switches are installed at a distance of 150mm from the first roller axis in the second longitudinal conveying roller table 12 The single-row saggers 5 of the first row enter the second longitudinal conveying roller table 12 and continue to be transported at the original speed until the single-row saggers 5 advance to the first photoelectric separation switch, blocking the light of the first photoelectric separation switch , then immediately accelerate the conveying speed of the second longitudinal conveying roller table 12, the single-row saggers 5 are quickly conveyed to the horizontal conveying roller table 13 and wait for unloading; After the second photoelectric separation switch at the position detects that the single-row saggers 5 pass through completely, the conveying speed of the second longitudinal conveying roller table 12 is restored to the initial state. Simultaneously start the automatic rotary unloading device 3 to unload the single-row sagger 5.

Unloading stage: the clamping bottom longitudinal beam 3331 and the clamping rib 3333 of the clamping bottom frame beam 333 of the automatic rotary unloading device 3 move upward from the gap between the roller shafts of the horizontal conveying roller table 13 to move the single-row sagger 5 Rotate and lift; during the process of rotating and lifting, under the action of gravity, the single-row sagger 5 slowly approaches the blocking mechanism 3334. With the aid of two connecting rods 332 after clamping and connection, the gradual dislocation movement is carried out slowly downward relative to the rotating support frame beam 322; when the rotating bracket 32 and the rotating automatic clamping mechanism 33 rotate to 90°, the single row box The front wall surface of the bowl 5 is closely attached to the blocking mechanism 3334, and the clamping ribs 3333 clamping the bottom frame beam 333 are closely attached to the bottom surface of the single-row sagger 5, and the single-row sagger 5 is firmly clamped. Between the clamping bottom frame beam 333 and the rotating support frame beam 322; the rotating bracket 32 and the rotating automatic clamping mechanism 33 continue to turn over to 180°, and dump the materials in the single-row sagger 5 into the discharge chute 35; Simultaneously start the gas blowing device 36 to blow gas in the pot body of the single-row sagger 5 after turning over, and each sagger 5 corresponds to two nozzles 361; make the residual material in the pot body of the single-row sagger 5 all fall into In the discharge chute 35. After the unloading is completed, the single-row empty saggar 5 is reversed 180° through the rotating bracket 32 and the rotary automatic clamping mechanism 33, and the single-row empty sagger is sent back to the horizontal conveying roller table 13; Still under the action of gravity, the clamping bottom frame beam 333 slowly moves downward relative to the rotating support frame beam 322 with the assistance of two clamping and connecting front connecting rods 331 and two clamping and connecting rear connecting rods 332. Remote dislocation movement; when the rotary support 32 and the rotary automatic clamping mechanism 33 rotate back to 0°, the clamping bottom frame beam 333 and the rotary support frame beam 322 have completely released the single-row empty sagger 5 and returned to their original state.

Empty sagger conveying stage: when the automatic rotary unloading device returns to the 0° position, the horizontal conveying roller table 13 is started to convey the single-row empty sagger 5 to the return conveying roller table 15 via the turning conveying roller table 14; After the third separation photoelectric switch 403 at the last roller shaft of the road 13 detects that the single-empty sagger 5 passes completely, the horizontal conveying roller table 13 is closed.

Continue to convey a new row of single-row saggers 5 filled with materials to the horizontal conveying roller table 13 through the second longitudinal conveying roller table 12 for the next round of unloading operation.

Method Example 2

The length of the first longitudinal conveying roller table 11 is 5m, the effective width is 1.5m, and the conveying speed is 0.05m/s.

The length of the second longitudinal conveying roller table 12 is 1.5m, the effective width is 1.5m, and the slow conveying speed is 0.05m/s. The fast conveying speed is 0.5m/s.

The length of the horizontal conveying roller table 13 is 1.7m, the effective width is 500mm, the initial state is the stop state, and the conveying speed in the conveying state is 0.5m/s.

The size of the sagger 5 is: length 270mm, width 270mm, height 70mm. The charging capacity of a single sagger is 2kg; the number of single-row saggers is 4.

Leveling stage: After the saggers 5 filled with materials come out of the roller kiln, they are transported through the first longitudinal conveying roller table 11, and are conveyed in rows in the transverse direction of the first longitudinal conveying roller table 11. When the bowl 5 is conveyed on the first longitudinal conveying roller table 11 and just completely enters between the first flattening mechanism 21 and the second flattening mechanism 22 of the automatic leveling device 2, the light rays of the leveling photoelectric switch 23 are single-row Blocked by the sagger 5, then the first push-flat mechanism 21 and the second push-flat mechanism 22 are started to push the single-row sagger 5 in the horizontal direction, so that the side walls of the single-row sagger 5 and the side wall tight fit between them. Then, the first bulldozing mechanism and the second bulldozer mechanism immediately return to recover to the initial shrinkage state.

Separation stage: continue to convey the single row of saggers 5 to the front end of the second longitudinal conveying roller table 12, and at the same time install a pair of first photoelectric separation switches at a distance of 200mm from the first roller axis in the second longitudinal conveying roller table 12 The single-row saggers 5 of the first row enter the second longitudinal conveying roller table 12 and continue to convey at the original speed until the single-row saggers 5 block the light of the first photoelectric separation switch, and then immediately accelerate the second longitudinal conveying roller The conveying speed of road 12, the single-row saggers 5 are quickly conveyed to the horizontal conveying roller table 13 and wait for unloading; when the second photoelectric separation switch at the last roller table on the second longitudinal conveying roller table 12 detects After the single row of saggers 5 passes through completely, the conveying speed of the second longitudinal conveying roller table 12 is restored to the initial state. Simultaneously start the automatic rotary unloading device 3 to unload the single-row sagger 5.

Unloading stage: the clamping bottom longitudinal beam 3331 and the clamping rib 3333 of the clamping bottom frame beam 333 of the automatic rotary unloading device 3 move upward from the gap between the roller shafts of the horizontal conveying roller table 13 to move the single-row sagger 5 Rotate and lift; during the process of rotating and lifting, under the action of gravity, the single-row sagger 5 slowly approaches the blocking mechanism 3334. With the aid of two connecting rods 332 after clamping and connection, the gradual dislocation movement is carried out slowly downward relative to the rotating support frame beam 322; when the rotating bracket 32 and the rotating automatic clamping mechanism 33 rotate to 90°, the single row box The front wall surface of the bowl 5 is closely attached to the blocking mechanism 3334, and the clamping ribs 3333 clamping the bottom frame beam 333 are closely attached to the bottom surface of the single-row sagger 5, and the single-row sagger 5 is firmly clamped. Between the clamping bottom frame beam 333 and the rotating support frame beam 322; the rotating bracket 32 and the rotating automatic clamping mechanism 33 continue to turn over to 170°, and the materials in the single-row sagger 5 are dumped into the discharge chute 35; Simultaneously start the gas blowing device 36 to blow gas in the pot body of the single-row sagger 5 after turning over, and each sagger 5 corresponds to two nozzles 361; make the residual material in the pot body of the single-row sagger 5 all fall into In the discharge chute 35. After the unloading is completed, the single-row empty saggar 5 is reversed 170° through the rotating bracket 32 and the rotary automatic clamping mechanism 33; the single-row empty sagger is sent back to the horizontal conveying roller table 13; during this process Still under the action of gravity, the clamping bottom frame beam 333 slowly moves downward relative to the rotating support frame beam 322 with the assistance of two clamping and connecting front connecting rods 331 and two clamping and connecting rear connecting rods 332. Remote dislocation movement; when the rotary support 32 and the rotary automatic clamping mechanism 33 rotate back to 0°, the clamping bottom frame beam 333 and the rotary support frame beam 322 have completely released the single-row empty sagger 5 and returned to their original state.

Empty sagger conveying stage: when the automatic rotary unloading device returns to the 0° position, the horizontal conveying roller table 13 is started to convey the single-row empty sagger 5 to the return conveying roller table 15 via the turning conveying roller table 14; After the third separation photoelectric switch 403 at the last roller shaft of the road 13 detects that the single-empty sagger 5 passes completely, the horizontal conveying roller table 13 is closed.

Continue to convey a new row of single-row saggers 5 filled with materials to the horizontal conveying roller table 13 through the second longitudinal conveying roller table 12 for the next round of unloading operation.

Claims (26)

1. An automatic unloading system for roller kiln saggers, characterized in that: the system includes a conveying device (1), an automatic leveling device (2) and an automatic rotating unloading device (3); the conveying device (1 ) includes a first longitudinal conveying roller table (11), a second longitudinal conveying roller table (12) and a transverse conveying roller table (13); the second longitudinal conveying roller table (12) is arranged on the first longitudinal conveying roller table ( 11), and the front end of the second longitudinal conveying roller table (12) is connected to the end of the first longitudinal conveying roller table (11); the horizontal conveying roller table (13) is set on the second longitudinal conveying roller table (12), and the end of the second longitudinal conveying roller table (12) is connected to the inside of the front end of the transverse conveying roller table (13); the automatic leveling device (2) is set on the first longitudinal conveying roller table (11); the automatic rotary unloading device (3) is arranged downstream of the second longitudinal conveying roller table (12); The automatic rotary unloading device (3) includes a rotary drive mechanism (31), a rotary bracket (32) and a rotary automatic clamping mechanism (33); the rotary bracket (32) includes a rotary shaft (321) and a rotary support frame beam (322), the rotating supporting frame beam (322) is fixedly connected with the rotating shaft (321); the rotating shaft (321) is connected with the driving shaft of the rotating driving mechanism (31); the rotating supporting frame beam (322) includes two rotating supporting Beams (3221) and two rotating support beams (3222); the two rotating supporting longitudinal beams (3221) are parallel to the direction of the roller axis of the horizontal conveying roller table (13) and are vertically fixedly connected to the rotating shaft (321); 2 The first rotating support beam (3222) is parallel to the rotation axis (321) and fixedly connected to the rotating support longitudinal beam (3221); 2 said rotating support longitudinal beams (3221) and 2 said rotating support beams (3222) A rectangular fixed frame is formed; the rotary automatic clamping mechanism (33) includes 2 clamping and connecting front connecting rods (331), 2 clamping and connecting rear connecting rods (332) and clamping bottom frame beams (333); The clamping bottom frame beam (333) includes two clamping bottom longitudinal beams (3331) and one clamping bottom cross beam (3332); the two clamping bottom longitudinal beams (3331) are parallel to the rotating support longitudinal beam (3221 ), and are independently located under two rotating support beams (3221); ); 2 clamping bottom longitudinal beams (3331) and 1 clamping bottom cross beam (3332) form a rectangular fixed frame with one end open, and its opening position is located close to the second longitudinal conveying roller One end of the road (12); two clamping and connecting front connecting rods (331) connect the front ends of the two clamping bottom longitudinal beams (3331) independently to the front end of the rotating support frame beam (322) through a movable hinge connection method. The two ends of the rotating support beam (3222) are connected; the two clamping and connecting rods (332) connect the two ends of the clamping bottom beam (3332) independently with the rotating support frame beam through a movable hinge connection. (322) The two ends of the rotating support beam (3222) at the rear end are connected; the rotating automatic clamping mechanism (33) is located directly below the rotating bracket (32); the rotating automatic clamping mechanism (33) and the rotating bracket (32 ) form a hollow square box structure; The rotating support frame beam (322) also includes several supporting ribs (3223); the two ends of the supporting ribs (3223) are respectively fixed to the rotating supporting longitudinal beams (3221) and/or rotating supporting beams (3222) connect; The clamping bottom frame beam (333) also includes several clamping ribs (3333); the bottom ends of several clamping ribs (3333) are fixedly connected with the clamping bottom beam (3332), and the clamping ribs (3333) is parallel to the clamping bottom longitudinal beam (3331); the clamping bottom longitudinal beam (3331) and the clamping rib (3333) can be carried out between the adjacent roller shaft gaps on the horizontal conveying roller table (13). Moving up and down; A blocking mechanism (3334) is also provided on the clamping bottom frame beam (333); the blocking mechanism (3334) is fixedly connected with the clamping bottom longitudinal beam (3331) and/or the clamping rib (3333). 2. The system according to claim 1, characterized in that: the automatic leveling device (2) includes a first leveling mechanism (21), a second leveling mechanism (22) and a leveling photoelectric switch (23) ; The first flattening mechanism (21) and the second flattening mechanism (22) are symmetrically arranged on both sides of the first longitudinal conveying roller table (11); the leveling photoelectric switch (23) is arranged on the second The side part of a longitudinal conveying roller table (11) and is located above the first longitudinal conveying roller table (11). 3. The system according to claim 2, characterized in that: the first flattening mechanism (21) includes a first cylinder (211) and a first push rod (212); the first cylinder (211) The cylinder body is fixed on the beam on one side of the first longitudinal conveying roller table (11); the piston rod of the first cylinder (211) is vertically connected with the first push rod (212); the first push rod (212) The axis direction of is perpendicular to the axis direction of the roller table of the first longitudinal conveying roller table (11); The second flattening mechanism (22) includes a second cylinder (221) and a second push rod (222); the cylinder body of the second cylinder (221) is fixed on the first cylinder opposite to the first cylinder (211). The side of the longitudinal conveying roller table (11); the piston rod of the second cylinder (221) is vertically connected to the second push rod (222); the second push rod (222) is connected to the first push rod (212) set in parallel. 4. The system according to any one of claims 1-3, characterized in that: the system also includes a first separation photoelectric switch (401) and a second separation photoelectric switch (402); the first separation photoelectric switch The switch (401) is set above the upstream of the second longitudinal conveying roller table (12) and close to one end of the first longitudinal conveying roller table (11); the second separation photoelectric switch (402) is arranged on the second longitudinal conveying roller table (12), and located above the end roller shaft of the second longitudinal conveying roller table (12). 5. The system according to claim 4, characterized in that the second separation photoelectric switch (402) is located above the last roller shaft of the second longitudinal conveying roller table (12). 6. The system according to claim 4, characterized in that the distance between the first separation photoelectric switch (401) and the first branch roller axis in the second longitudinal conveying roller table (12) is sagger (5) 0.25-1 times the length. 7. The system according to claim 6, characterized in that the distance between the first separation photoelectric switch (401) and the first branch roller axis in the second longitudinal conveying roller table (12) is sagger (5) 0.3-0.9 times the length. 8. The system according to claim 7, characterized in that the distance between the first separation photoelectric switch (401) and the first branch roller axis in the second longitudinal conveying roller table (12) is sagger (5) 0.5-0.8 times the length. 9. The system according to claim 1, characterized in that: the blocking mechanism (3334) is one of a baffle, a bar, and a bar. 10. The system according to claim 1, characterized in that: the blocking mechanism (3334) is a baffle with several grooves arranged at intervals at the lower end, and any of the grooves can be connected with the horizontal conveying roller table Any one of the rollers in (13) is snap-fit; and/or Several grooves are arranged at intervals on the clamping bottom beam (3332), and any of the grooves can be engaged with any roller shaft in the transverse conveying roller table (13). 11. The system according to claim 1, characterized in that: the automatic rotary unloading device (3) also includes a sealing cover (34), and the sealing cover (34) is integrally arranged on the rotating drive mechanism (31 ), above the rotating bracket (32), and the rotating automatic clamping mechanism (33); The automatic rotary unloading device (3) also includes a discharge trough (35), which is a bucket structure with a wide top and a narrow bottom; The driving mechanism (31), the rotating bracket (32), and the rotating automatic clamping mechanism (33), and its upper opening corresponds to the lower opening of the sealing cover (34); the lower part of the discharge chute (35) A discharge port (351) is provided. 12. The system according to claim 11, characterized in that: the automatic rotary unloading device (3) also includes a gas injection device (36); the gas injection device (36) includes a nozzle (361) and air pipe (362); the nozzle (361) is set inside the unloading chute (35), and is located directly below the rotary automatic clamping mechanism (33) after horizontal rotation; the air pipe (362) passes through the unloading The groove wall of hopper (35) communicates with nozzle (361) behind. 13. The system according to claim 12, characterized in that a movable inspection door (341) is provided on the side wall and/or the top wall of the sealing cover (34). 14. The system according to claim 12, characterized in that: the number of the nozzles (361) is 1-100. 15. The system according to claim 14, characterized in that: the number of the nozzles (361) is 3-80. 16. The system according to claim 15, characterized in that: the number of the nozzles (361) is 5-50. 17. The system according to any one of claims 1-3, 5-15, characterized in that: the conveying device (1) also includes a turning conveying roller table (14) and a return conveying roller table (15 ); the turning conveying roller table (14) is located downstream of the transverse conveying roller table (13), and the front end of the turning conveying roller table (14) is connected with the end of the transverse conveying roller table (13); the return conveying The roller table (15) is located downstream of the turning conveying roller table (14), and the front end of the return conveying roller table (15) is connected with the end of the turning conveying roller table (14); the return conveying roller table (15) The conveying direction is opposite to the conveying direction of the first longitudinal conveying roller table (11). 18. The system according to claim 17, characterized in that: the system also includes a third separation photoelectric switch (403); the third separation photoelectric switch (403) is arranged downstream of the horizontal conveying roller table (13) . 19. The system according to claim 18, characterized in that the third separation photoelectric switch (403) is located above the last roller shaft in the transverse conveying roller table (13). 20. The system according to claim 19, characterized in that the parts of the automatic leveling device (2) and the automatic rotary unloading device (3) in contact with the sagger (5) are covered with heat-resistant flexible parts . 21. The system according to claim 20, wherein the heat-resistant flexible member is heat-resistant Viton. 22. A method for automatically unloading roller kiln saggers by using the system according to any one of claims 1-21, characterized in that the method comprises the steps of: 1) After the saggar (5) filled with materials comes out of the roller kiln, the saggers (5) filled with materials are conveyed to the second longitudinal conveying roller table in rows through the first longitudinal conveying roller table (11) (12); then when the single-row sagger (5) reaches the detection position of the first separation photoelectric switch (401), the conveying speed of the second longitudinal conveying roller table (12) is increased, and the single-row sagger containing the material The sagger (5) is transported to the horizontal conveying roller table (13) and waits for unloading; when the second separation photoelectric switch (402) at the last roller shaft of the second longitudinal conveying roller table (12) detects the After the bowl (5) passes through completely, restore the conveying speed of the second longitudinal conveying roller table (12) to be consistent with that of the first longitudinal conveying roller table (11). Has not yet reached or just arrived at the front end of the second longitudinal conveying roller table (12); 2) When the saggers (5) filled with materials are conveyed in rows at a uniform speed on the first longitudinal conveying roller table (11), when the leveling photoelectric switch (23) on the first longitudinal conveying roller table (11) detects When the single-row sagger (5) begins to pass by, the single-row sagger (5) is just between the first bulldozing mechanism (21) and the second bulldozer mechanism (22) of the automatic leveling device (2) , start the first bulldozing mechanism (21) and the second bulldozer mechanism (22) at the same time, the first bulldozer mechanism (21) and the second bulldozer mechanism (22) from the two At the same time, flatten the saggars (5) in the same row, so that the side walls of the saggers (5) in the same row fit closely; 3) The second separation photoelectric switch (402) located at the last roller shaft of the second longitudinal conveying roller table (12) detects that the single-row sagger (5) has passed completely, and starts the rotary drive mechanism (31) to drive the rotary support (32) and the rotary automatic clamping mechanism (33) perform a 180° turning motion of the single-row sagger (5) in the sealing cover (34) to unload; (33) During the 180° overturning movement, between the clamping bottom longitudinal beam (3331) clamping the bottom frame beam (333) and the clamping rib (3333) from the gap between the roller shafts of the horizontal conveying roller table (13) The upward movement rotates and lifts the single-row sagger (5); during the process of rotating and lifting, the single-row sagger (5) slowly approaches the blocking mechanism (3334), and at the same time, clamps the bottom frame beam (333) With the assistance of 2 clamping and connecting front links (331) and 2 clamping and connecting rear links (332), the progressive dislocation movement is carried out slowly downward relative to the rotating support frame beam (322); when the rotating support ( 32) and the rotary automatic clamping mechanism (33) are rotated to 90°, the front wall of the single-row sagger (5) is closely attached to the blocking mechanism (3334), and the clamping of the bottom frame beam (333) is clamped Ribs (3333) are tightly attached to the bottom surface of the single-row sagger (5), and the single-row sagger (5) is firmly clamped on the clamping bottom frame beam (333) and the rotating support frame beam (322) Between; the rotating bracket (32) and the rotating automatic clamping mechanism (33) continue to turn over to 180°, and dump the materials in the single-row sagger (5) into the unloading chute (35); after the unloading is completed The single-row empty sagger (5) is reversed 180° by the rotating bracket (32) and the rotating automatic clamping mechanism (33), and then sent back to the horizontal conveying roller table (13). Hold the bottom frame beam (333) with the assistance of 2 clamping and connecting front links (331) and 2 clamping and connecting rear links (332) to slowly move downward relative to the rotating support frame beam (322). Misalignment movement; when the rotating bracket (32) and the rotating automatic clamping mechanism (33) return to 0°, the clamping bottom frame beam (333) and the rotating support frame beam (322) have completely released the single-row empty sagger (5) and return to the original state; start the horizontal conveying roller table (13) to transport the single empty sagger (5) to the return conveying roller table (15) via the turning conveying roller table (14); ) After the third separation photoelectric switch (403) at the last roller shaft detects that the single empty saggar (5) has passed completely, it closes the horizontal conveying roller table (13); at the same time, it continues to pass through the second longitudinal conveying roller The road (12) transports a new row of single-row saggers (5) filled with materials to the horizontal conveying roller table (13) and waits for unloading, and thus circulates. 23. The method according to claim 22, characterized in that: the method further comprises the following steps: 4) When the single-row sagger (5) is turned over to 180° by the rotating bracket (32) and the rotary automatic clamping mechanism (33), start the gas injection device (36) to the turned single-row sagger (5) Gas injection in the bowl body of the single-row sagger (5) makes the residual material in the bowl body of the single-row sagger (5) all fall in the discharge chute (35). 24. The method according to claim 23, characterized in that the number of single-row saggers (5) is 1-12. 25. The method according to claim 24, characterized in that the number of single-row saggers (5) is 2-8. 26. The method according to claim 25, characterized in that the number of single-row saggers (5) is 3-5.

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