CN111618954A - Automatic feeding and discharging device of hot press - Google Patents

Abstract

The invention provides an automatic feeding and discharging device for a hot press, comprising: a moving support frame, a fixed frame and a power system, wherein the moving support frame and the power system are arranged on the fixed frame; the moving support frame includes: a forward and backward screw drive device and a support plate; The power system includes: a hydraulic motor and a screw rod. The hydraulic motor drives the screw rod to rotate through the first gear transmission mechanism. The screw rod is connected with the mobile support frame and drives the mobile support frame to move on the fixed frame; the forward and backward screw transmission device includes: a screw rod and a transmission The nut, the screw rod is driven to rotate through the second gear transmission mechanism, and the transmission nut is connected with the support plate. The distance between the automatic feeding and discharging device and the hot press is adjustable, which solves the problems of maintenance and inaccurate positioning of feeding and discharging. It can smoothly feed slabs of various thicknesses and curvatures. Simple and easy to implement, easy to operate, lower in cost, and more suitable for the transformation and upgrading of plywood production plants.

Description

Automatic feeding and discharging device of hot press

technical field

The invention belongs to the technical field of peripheral equipment of a hot press, in particular to an automatic feeding and discharging device of a hot press.

Background technique

The feeding and discharging of traditional hot presses are usually manually operated, and slabs with different thicknesses and different degrees of curvature are put into the hot press for hot pressing. The problems of manual operation are low efficiency and unsafety. In order to replace manual feeding and discharging, this Those skilled in the art propose semi-automatic or automatic feeding and discharging structures.

The existing semi-automatic or automatic feeding and discharging structure is generally divided into a feeding module and a discharging module, which makes the overall structure complex, expensive, difficult to operate, and difficult to manufacture. Another defect brought about by the complex structure is that it is easily damaged and difficult to maintain, and the existing material feeding and discharging structure cannot feed slabs with different thicknesses and degrees of curvature. In addition, in order to prevent the pollution of unorganized VOCs waste gas generated during the hot pressing process of plywood, the best way to collect it is to completely close the hot pressing machine, and exhaust the waste gas during the hot pressing process through a fan, and reduce as much as possible. Feed into the slab and take out the overflow of residual VOCs waste gas from the product, and send the waste gas from the entire production process to the waste gas treatment device for purification and discharge. However, the slow speed of manual feeding and discharging after sealing can easily lead to the overflow of VOCs waste gas, so the current semi-automatic or automatic feeding and discharging structure cannot be matched with a fully sealed hot press.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides an automatic feeding and discharging device for a hot press. In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor is it intended to identify key/critical elements or delineate the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the detailed description that follows.

The present invention adopts following technical scheme:

In some optional embodiments, an automatic feeding and discharging device for a heat press is provided, comprising: a moving support frame, a fixed frame and a power system, the moving support frame and the power system are arranged on the fixed frame; the The moving support frame includes: a forward and backward screw transmission device and a bearing plate for driving the slab to be pressed to move; the power system includes: a hydraulic motor and a screw rod, and the hydraulic motor drives the screw rod to rotate through the first gear transmission mechanism, so the The screw rod is connected with the moving support frame, and drives the moving support frame to move on the fixed frame; the advancing and retreating screw transmission device includes: a screw rod and a transmission nut, and the screw rod drives the moving support frame through a second gear transmission mechanism. The screw rotates, and the transmission nut is connected with the support plate.

In some optional embodiments, the moving support frame further includes: a one-way baffle device; the one-way baffle device includes: a fixed plate and a swinging plate hinged with the fixed plate, the fixed plate A limit block is provided for restricting the swing direction of the swing plate; a gap is formed at the front end of the support plate, the fixed plate is connected with the fixed frame, and the swing plate penetrates through the gap.

In some optional embodiments, the mobile support frame further includes: a push plate and a roller; the push plate and the roller are arranged at the front end of the support plate.

In some optional embodiments, the moving support frame further includes: a thin plate warping limiting device; the thin plate warping limiting device includes: a fixing piece and an adjusting piece; one end of the fixing piece is connected to the fixing frame, and the other end is connected to the fixing frame. Connected with the adjustment piece, the tail end of the adjustment piece is lifted to the side away from the support plate.

In some optional embodiments, the automatic feeding and discharging device further includes: a device for cleaning waste melamine paper; the device for cleaning waste melamine paper includes: a circulating blowing pipeline and a nozzle facing the hot pressing plate layer of the hot press. A venturi nozzle, the venturi nozzle is arranged on the circulating injection pipeline.

In some optional embodiments, the bottom of the fixed frame is provided with track wheels, and the ground is provided with support sliding rails adapted to the track wheels.

The beneficial effects brought by the present invention: the automatic feeding and discharging device of the hot press disclosed by the present invention can adjust the distance between the automatic feeding and discharging device and the hot press by the setting of the moving support frame and the fixed frame, so as to solve the problems of maintenance and feeding. The problem of inaccurate positioning of the material. In particular, the invention can smoothly feed slabs with various thicknesses and curvatures. Compared with the existing feeding equipment whose average price has reached more than 100,000 yuan, the present invention has simple structure, easy operation, lower cost, and is more suitable for the transformation and upgrading of plywood production plants. The present invention realizes the feeding and discharging through the support plate, and the feeding and discharging are more stable.

Description of drawings

Fig. 1 is the structural representation of a kind of hot press automatic feeding and discharging device of the present invention;

Fig. 2 is the rear view of the automatic feeding and discharging device of the present invention;

Fig. 3 is the position schematic diagram of the fixed frame and the mobile support frame of the present invention;

Fig. 4 is the position schematic diagram of the fixed frame and the support plate of the present invention;

Fig. 5 is the connection schematic diagram of the hydraulic motor of the present invention, the screw rod and the advancing and retreating screw transmission device;

Fig. 6 is the connection schematic diagram of the screw rod, the second gear transmission mechanism and the advancing and retreating screw transmission device of the present invention;

Fig. 7 is the structural representation of the one-way baffle device of the present invention;

Fig. 8 is the connection schematic diagram of the one-way baffle device, the fixed frame and the support plate of the present invention;

Fig. 9 is the structural representation of the push plate of the present invention;

Figure 10 is a schematic diagram of the waste melamine paper cleaning device of the present invention.

Detailed ways

The following description and drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The examples are only representative of possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments.

In some illustrative embodiments, an automatic feeding and discharging device for a hot press is provided, which realizes feeding and discharging of the hot pressing plate layers of the hot press.

As shown in FIGS. 1 to 9 , the automatic feeding and discharging device of the present invention includes: a fixed frame 201 , a moving support frame 4 , a power system 5 , a waste melamine paper cleaning device 6 , a track wheel 202 , and a supporting sliding track 203 . The moving support frame 4 , the power system 5 and the waste melamine paper cleaning device 6 are arranged on the fixed frame 201 .

The track wheel 202 is provided at the bottom of the fixed frame 201 , and the support sliding track 203 is installed on the ground and is adapted to the track wheel 202 , so that the fixed frame 201 can move on the support slide track 203 through the track wheel 202 . The fixed frame 201 is locked during normal operation. For example, when the hot press or the automatic feeding and discharging device needs to be repaired, the locking can be unlocked and moved to the inspection position on the supporting sliding track 203 . The height of the fixed frame 201 is set to different heights according to the number of slabs hot-pressed by the hot-pressing machine at one time, and is generally set between 5 and 10 cm. The width of the fixed frame 201 is set to an appropriate width according to the working width of the hot press and the size of the moving support frame 4, and is generally set to 2.7m×1.3m according to the size of the slab.

The supporting sliding rail 203 is composed of two steel rails, which are fixed on the feeding side of the hot press, and its width is the same as the width of the rail wheels on both sides of the fixed frame 201. When the feeding and discharging device needs to be overhauled, the automatic feeding and discharging device is removed, and the two ends of the supporting sliding track 203 are provided with cut-off blocks to prevent the automatic feeding and discharging device from exceeding the limited range of the track when the whole movement of the automatic feeding and discharging device is carried out.

As shown in FIG. 10 , the waste melamine paper cleaning device 6 includes: a circulating blowing pipe 601 and a venturi nozzle 602 facing the hot pressing plate layer 7 of the hot press. The venturi nozzle 602 is arranged on the circulating blowing pipe 601 . The fan sends the air to the venturi nozzle 602 through the circulating blowing pipeline 601, and blows it to the hot pressing plate layer 7, so as to realize the cleaning of the waste melamine paper.

The moving support frame 4 includes: a support plate 401 , a forward and backward screw driving device 402 , a one-way baffle device 403 , a push plate 404 , a roller 405 , and a thin plate warping limiting device 406 .

The carrier plate 401 holds materials such as slabs to be hot-pressed, dipped paper, etc., and is used to drive the slabs to be pressed to move. The moving support frame 4 is driven by the power system 5 to move, so that the support plate 401 moves, and the support plate 401 feeds the slab to be pressed into the hot pressing plate layer of the hot press during feeding and discharging.

The power system 5 includes: a hydraulic motor 501 , a screw rod 502 , a first gear transmission mechanism 503 , and a second gear transmission mechanism 504 . As shown in FIG. 6 , the hydraulic motor 501 drives the screw rod 502 to rotate through a first gear transmission mechanism 503 , and the first gear transmission mechanism uses a number of gears to engage to transmit power.

As shown in Figures 5 and 6, the advancing and retreating screw transmission device 402 includes: a screw 402a and a transmission nut 402b, the screw 502 drives the screw 402a to rotate through the second gear transmission mechanism 504, and when the screw 402a rotates, the transmission nut 402b moves on it, The transmission nut 402b is connected with the support plate 401, so that the hydraulic motor 501 drives the screw rod 502 to rotate, and the screw rod 502 drives the transmission nut 402b to move through the second gear transmission mechanism 504, and finally drives the mobile support frame 4 to move on the fixed frame 201. The second gear transmission mechanism uses several gears to mesh to transmit power.

As shown in FIGS. 7 to 8 , the one-way baffle device 403 includes a fixed plate 403a and a swinging plate 403b hinged with the fixed plate 403a, and a limiting block 403c for restricting the swinging direction of the swinging plate 403b is provided on the fixed plate 403a. The front end of the support plate 401 is provided with a gap 401a, the fixing plate 403a is connected to the fixed frame 201, and the swinging plate 403b penetrates the gap 401a. When the bearing plate 401 is in the fixed frame 201, the swinging plate 403b is located in the gap 401a; as the bearing plate 401 is pushed out, the swinging plate 403b is forced to swing upwards and pass over the slab to be pressed, so it does not affect the plate Move until the swinging plate 403b falls behind the slab to be pressed and contacts the upper surface of the bearing plate 401 again. At this time, even if the bearing plate 401 withdraws, the swinging plate 403b will also jam the slab to be pressed, preventing the slab to be pressed from following the bearing. Plate 401 is withdrawn together.

As shown in FIGS. 8 to 9 , the push plate 404 and the roller 405 are arranged at the front end of the support plate 401 , that is, one end close to the heat press.

When loading, the slabs to be pressed are manually placed on each support plate 401 . The artificial upper plate positions at both ends of the plane of each layer of the support plate shrink inward to increase the operator's operating space. At the same time, the edge is the best position for placing the slab to be pressed, which reduces the difficulty of the worker's operation, shortens the time for adjusting the position of the slab, and ensures that the slab enters the hot spot. The press position is accurate.

After the slab to be pressed is placed, under the control of the control system, the hot press starts the feeding operation, and the supporting plate 401 is driven to move the slab to be pressed. Triggering the one-way baffle device 403 can prevent the slab to be pressed from moving in the opposite direction following the moving support frame 4 when the moving support frame 4 retreats. After the to-be-pressed slab contacts the hot press, the to-be-pressed slab will slide on the rollers 405 into the hot press to reduce system resistance and reduce the risk of sheet wear. When the slab to be pressed enters a certain position of the hot press, the moving support frame 4 retreats a certain distance and stops, so that the slab to be pressed is separated from the moving support frame 4 and completely falls on the hot pressing plate layer obtained by the hot press. At this time, the moving support The frame 4 starts to move forward in the direction of the hot press again, and pushes the slab to be pressed into the exact hot pressing position of the hot press through the push plate 404 for a second time. When the slab to be pressed enters the exact hot pressing position of the hot press, the moving support frame 4 stops moving forward and starts to move in reverse to the original position, completing a feeding action and preparing for the next feeding and discharging cycle.

When the hot pressing of the slab in the hot press is completed, and after the hot press is released, under the control of the control system, the hot press starts discharging, and the moving support frame 4 starts to move toward the hot press. The power system 5 pushes the moving support frame 4 to move toward the hot press, pushes out the finished plywood that has been hot pressed in the hot press through the push plate 404 and takes it out by workers.

The advance and retreat of the mobile support frame 4 is connected with the screw rod 502 on the fixed frame 1 through the advance and retreat screw transmission device 402, and the fixed frame power system 5 is used to push the screw rod 502 to rotate forward and reverse, thereby controlling the advance and retreat of the mobile support frame 4.

As shown in FIG. 5 , the thin plate warping limiting device 406 includes: a fixing piece 406a and an adjusting piece 406b; one end of the fixing piece 406a is connected with the fixing frame 201, and the other end is connected with the adjusting piece 406b, and the tail end of the adjusting piece 406b is away from the supporting plate 401 side up. In order to adapt to the automatic feeding of the warped thin plate, the present invention is provided with thin plate warping limiting devices 406 on both sides of the support plate 401, and the pressure of the thin plate warping limiting device 406 is adjusted according to the layer spacing of different hot presses to ensure the reliability of automatic feeding. And the quality and safety of the upper plate, when the thin plate is placed on the support plate 401, the edges of the two sides of the thin plate will be limited to a certain warping range due to the action of the thin plate warping limiting device 406, and at the same time, the loading of the slab will not be affected. And solve the problem of automatic feeding of the thin plate that is easy to curl up.

According to the feature that plywood hot pressing and feeding work alternately, the power of the power system 5 of the present invention comes from the residual energy when the hydraulic system of the hot press is depressurized, and is stored by the energy storage device to move the support frame 4. Its hydraulic oil storage accounts for about 10% of the total amount of the hydraulic system of the hot press, which can meet the running power needs of the moving support frame 4 . The power system 5 provides power to the moving parts of the whole set, including the reciprocating motion of the moving support frame 4 and the opening and closing of the thermal fixing device for the dipped paper.

When moving the support frame 4 forward or backward, under the operation of the control system, the hydraulic energy storage tank group transmits energy to the hydraulic motor, drives the hydraulic motor to rotate forward or reverse, and then transmits the power to the wire through the transmission shaft and gear. The rod drives the screw to rotate, so as to control the movement of the mobile support frame and complete the feeding and discharging work.

The control system mentioned in the present invention is composed of a central controller, a pressure sensor, a limit switch, a solenoid valve, and other sensors and cables. The control panel of the control system is equipped with function buttons such as feeding and discharging start, feeding and discharging reset, feeding and discharging forward, feeding and discharging backward, hot-fixed start, hot-fixed reset, emergency stop, etc. Movement action is paused.

Those skilled in the art will also appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments herein may be implemented as electronic hardware, computer software, or combinations thereof. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether this functionality is implemented as hardware or software depends on the specific application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, however, such implementation decisions should not be interpreted as a departure from the scope of the present disclosure.

Claims (6)

1. The automatic feeding and discharging device of the hot press is characterized in that it includes: a moving support frame, a fixed frame and a power system, and the moving support frame and the power system are arranged on the fixed frame; the moving support frame includes: advancing and retreating A screw transmission device and a bearing plate for driving the slab to be pressed to move; the power system includes: a hydraulic motor and a screw rod, the hydraulic motor drives the screw rod to rotate through a first gear transmission mechanism, and the screw rod is connected to the screw rod. The moving support frame is connected to drive the moving support frame to move on the fixed frame; the advancing and retreating screw transmission device includes: a screw rod and a transmission nut, the screw rod drives the screw rod to rotate through a second gear transmission mechanism, and the The transmission nut is connected with the support plate. 2 . The automatic feeding and discharging device for a hot press according to claim 1 , wherein the moving support frame further comprises: a one-way baffle device; the one-way baffle device comprises: a fixed plate and a A swinging plate hinged by a fixed plate, a limit block for restricting the swinging direction of the swinging plate is set on the fixed plate; a gap is formed at the front end of the supporting plate, the fixed plate is connected with the fixed frame, and the swinging plate is through the gap. 3 . The automatic feeding and discharging device for a hot press according to claim 2 , wherein the moving support frame further comprises: a push plate and a roller; the push plate and the roller are arranged at the front end of the support plate 3 . . 4 . The automatic feeding and discharging device for a hot press according to claim 3 , wherein the moving support frame further comprises: a thin plate warping limiting device; the thin plate warping limiting device comprises: a fixing sheet and an adjusting sheet; the One end of the fixing piece is connected with the fixing frame, and the other end is connected with the adjusting piece, and the tail end of the adjusting piece is tilted to the side away from the supporting plate. 5. The automatic feeding and discharging device for a hot press according to claim 4, wherein the automatic feeding and discharging device further comprises: a cleaning device for waste melamine paper; the cleaning device for waste melamine paper comprises: a circulating injection pipeline and a A venturi nozzle facing the hot pressing plate layer of the hot press, the venturi nozzle is arranged on the circulating injection pipeline. 6 . The automatic feeding and discharging device for a hot press according to claim 5 , wherein the bottom of the fixed frame is provided with a track wheel, and the ground is provided with a supporting sliding track adapted to the track wheel. 7 .

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