CN213595381U - Vacuum suction surface suction structure and device - Google Patents

Abstract

The utility model provides a vacuum suction surface suction structure and a device, which comprises a first suction plate, a second suction plate and a vacuum suction device, wherein the first suction plate is provided with a first air vent; the second suction plate is provided with at least one second vent hole; the second suction plate is connected to the top surface of the first suction plate, at least one air cavity is formed between the bottom surface of the second suction plate and the top surface of the first suction plate, and the sum of the cross sectional areas of a plurality of first vent holes corresponding to each air cavity is larger than the cross sectional area of the second vent hole. The suction force of the second vent holes is dispersed to the first vent holes, compared with the prior art that the material is adsorbed by a direct suction nozzle, the suction force of the single first vent hole is reduced, the adsorption contact area corresponding to each second vent hole is increased, and therefore the probability that the material is adsorbed and deformed to generate bulges or bulges is reduced.

Description

Vacuum suction surface suction structure and device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a vacuum suction equipment technical field, especially a structure and device are inhaled to gas circuit system, face of vacuum absorption.

[ background of the invention ]

The vacuum suction equipment generates negative pressure by extracting vacuum, so that the material is sucked, and the material is grabbed and transported. The existing vacuum sucking equipment usually adopts a plurality of suction nozzles or suction cups to suck the surface of the material, which is convenient for hard materials.

In the manufacturing process of chip resistors or chip capacitors in the semiconductor industry, a vacuum suction device is generally used to suck and move the whole chip resistor or capacitor onto a worktable, and then the chip resistor or capacitor is cut into individual chips. Because the thickness of the chip resistor or the chip capacitor is very thin and the texture is soft, the chip resistor is easily absorbed and deformed by the suction nozzle or the suction disc during vacuum absorption, and an upward bulge or bulge is formed at the contact position of the suction nozzle or the suction disc, so that the quality of the chip resistor or the chip capacitor is influenced.

[ Utility model ] content

The to-be-solved technical problem of the utility model lies in providing a structure and device are inhaled to gas circuit system, face of vacuum absorption, adopts the face to inhale the absorption structure of formula, not only satisfies the absorption of stereoplasm material, also is fit for the absorption of soft or flexible material and moves, and has reduced the probability that adsorption surface produced arch or swell.

The utility model discloses a realize like this: a vacuum suction face suction structure comprises

The first suction plate is provided with a first vent hole;

the second suction plate is provided with at least one second vent hole; the diameter of the second vent hole is larger than that of the first vent hole;

the second suction plate is connected to the top surface of the first suction plate, at least one air cavity is formed between the bottom surface of the second suction plate and the top surface of the first suction plate, the second vent holes are communicated with the air cavities in a one-to-one correspondence manner, each air cavity is communicated with a plurality of first vent holes in a correspondence manner, and the sum of the cross-sectional areas of the first vent holes corresponding to each air cavity is larger than the cross-sectional area of the second vent hole;

when there are at least two air chambers, each air chamber is hermetically isolated.

Furthermore, the bottom surface of the second suction plate is recessed upwards to form at least one first groove, and the first grooves are communicated with the second vent holes in a one-to-one correspondence manner; the first groove and the top surface of the first suction plate form the air chamber.

Further, there are 8 first grooves.

Furthermore, at least one second groove is formed in the top surface of the first suction plate in a downward concave mode, and the second grooves are communicated with the second vent holes in a one-to-one correspondence mode; the second groove and the bottom surface of the second suction plate form the air chamber.

The utility model also provides a device of vacuum suction, include

The surface suction structure;

the number of the vacuum logic valves is equal to that of the second vent holes of the surface suction structure, and the vacuum logic valves are connected with the second vent holes in a one-to-one corresponding airtight mode;

a vacuum break valve;

a suction device; the outlet of the vacuum breaker valve and each vacuum logic valve are connected in parallel in a gas-tight manner and then connected to the suction device;

an electronic pressure switch; the electronic pressure switch is connected between the suction device and the vacuum logic valve.

Further, the device also comprises a vacuum filter;

the outlet of the vacuum breaking valve and each vacuum logic valve are connected in parallel and then are connected with the inlet of the vacuum filter in an airtight mode, and the outlet of the vacuum filter is connected with the suction device in an airtight mode;

the electronic pressure switch is connected between the suction device and the vacuum filter.

Further, the air-blowing speed regulation device further comprises a first air-blowing speed regulation valve; an outlet of the vacuum break valve is hermetically connected to an inlet of the first blow speed regulation valve; and the outlet of the first blowing speed regulating valve is connected with each vacuum logic valve in parallel in an airtight mode.

Further, also includes

A web separation block; the inner side surface of the material sheet separating block is provided with a plurality of air blowing holes; the material sheet separating block is also provided with an air inlet which is communicated with each air blowing hole; the material sheet separating block is movably connected to the side face of the first suction plate or the second suction plate of the surface suction structure, and the air blowing holes are located below the first suction plate and arranged towards the inner side.

Further, the air conditioner also comprises four second air blowing speed regulating valves;

four material sheet separating blocks are arranged;

the side surface of each material sheet separating block is provided with at least two adjusting through holes;

screw holes are respectively formed in four side surfaces of the second suction plate, and the number of the screw holes in each side surface is equal to the number of the adjusting through holes of each material sheet separating block;

the second air blowing speed regulating valves are connected to the air inlet holes in a one-to-one corresponding and air-tight mode;

the four material sheet separating blocks are connected to four side faces of the second suction plate in a one-to-one correspondence mode, the four material sheet separating blocks are pairwise symmetrical, the air blowing holes are arranged in opposite directions, and each adjusting through hole is locked into the screw hole after penetrating through the adjusting through hole through a bolt.

Further, also includes

The top plate is provided with four through holes, and the four through holes are arranged in a rectangular shape;

four linear bearings are arranged, and the four linear bearings are fixedly connected in the four through holes in a one-to-one correspondence manner;

four guide posts; the four guide columns are embedded into the four linear bearings in a one-to-one corresponding sliding manner, and the bottom ends of the four guide columns are fixedly connected to the second suction plate;

four tension springs are arranged; and the four tension springs are respectively and fixedly connected to the middle points of the four sides of the top plate, and the bottom ends of the tension springs are fixedly connected to the tops of the second suction plates.

The utility model has the advantages that: a vacuum suction surface suction structure and a device thereof are provided, wherein a first suction plate is provided with a first vent hole; the second suction plate is provided with at least one second vent hole; the second suction plate is connected to the top surface of the first suction plate, at least one air cavity is formed between the bottom surface of the second suction plate and the top surface of the first suction plate, the second vent holes are communicated with the air cavities in a one-to-one correspondence mode, each air cavity is communicated with a plurality of first vent holes in a correspondence mode, and the sum of the cross sectional areas of the first vent holes corresponding to each air cavity is larger than the cross sectional area of the second vent holes. The suction force of the second vent holes is dispersed to the first vent holes, compared with the prior art that the material is adsorbed by a direct suction nozzle, the suction force of the single first vent hole is reduced, the adsorption contact area corresponding to each second vent hole is increased, and therefore the probability that the material is adsorbed and deformed to generate bulges or bulges is reduced.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a perspective view of the device of the present invention.

Fig. 2 is a bottom perspective view of the device of the present invention.

Fig. 3 is a top view of the device of the present invention.

Fig. 4 is a side view of the device of the present invention.

Fig. 5 is a bottom view of the device of the present invention.

Fig. 6 is a perspective view of the device of the present invention with the top plate hidden.

Fig. 7 is a side view of a material sheet separation block according to the present invention.

Fig. 8 is a sectional view a-a in fig. 7.

Fig. 9 and 10 are exploded views of the device of the present invention.

Fig. 11 is a schematic diagram of the gas circuit of the device of the present invention.

Description of reference numerals:

a vacuum suction apparatus 100;

a first suction plate 1, a first vent hole 11;

the second suction plate 2, the second vent hole 21, the first groove 22, the screw hole 23;

a vacuum logic valve 3;

a vacuum break valve 4;

a suction device 5 that vacuum-opens the electromagnetic valve 51;

an electronic pressure switch 6;

a vacuum filter 7;

the three-way valve 81-82 is provided with a valve,

a first blowing speed-adjusting valve 9;

the material sheet separating block 10, the air blowing hole 101, the air inlet hole 102 and the adjusting through hole 103;

a second blowing speed regulating valve 20, a connecting plate 201 and a two-way valve 202;

a tablet separation solenoid valve 30;

top plate 40, through hole 401;

a linear bearing 50;

the guide post (60) is provided with a guide post,

a tension spring 70;

a first fixing block 80, a threaded hole 801;

a second fixing block 90, a threaded hole 901;

a cushion 200.

[ detailed description ] embodiments

In the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the general concept of implementation as follows:

(1) each air cavity corresponds to one second vent hole 21 and a plurality of first vent holes 11, when materials are sucked, the second vent hole 21 is connected with air-tight air-extracting equipment, air is extracted from the second vent hole 21, then, the suction force is distributed to a plurality of the first ventilation holes 11, the suction force of the second ventilation holes 21 is distributed to each of the first ventilation holes 11, compared with the prior art that the direct suction nozzle adsorbs materials, the second vent hole 21 of the utility model is equivalent to the original suction nozzle, under the condition that the suction force of the second vent hole 21 is equal to that of the original suction nozzle, the utility model disperses the original suction force of one point to a plurality of first vent holes 11, therefore, the adsorption force of the single first vent hole 11 is reduced, and the probability that the single first vent hole 11 sucks and deforms the material to generate bulges or bulges is reduced.

On the other hand, the original single-point adsorption and diffusion is carried out on a plurality of first vent holes 11, adsorption points are increased, the aperture of each first vent hole 11 is smaller than that of each second vent hole 21, and meanwhile, the sum of the cross sections of the first vent holes 11 corresponding to each air cavity is larger than that of the second vent holes 21, so that the contact area is increased, and the probability of bulge or protrusion caused by the adsorption and deformation of the materials is further reduced.

(2) Through form at least one air cavity between first suction board 1 and second suction board 2, when the air cavity has two and more, each air cavity gas tightness keeps apart to when absorbing the material, when the contact surface when first suction board 1 and chip resistance or chip electric capacity that certain air cavity corresponds takes place to leak gas, and leads to when the position evacuation that this air cavity corresponds to became invalid, all the other air cavities can also continue to adsorb the material, and do not receive this position gas leakage influence. Because the chip resistor or the chip capacitor is thin and soft, when the chip resistor or the chip capacitor is stacked together, the chip resistor or the chip capacitor may be warped, uneven, and the like, so that when the first suction plate 1 sucks the chip resistor or the chip capacitor, the top surface of the chip resistor or the chip capacitor cannot be kept on a complete plane, and the phenomenon of air leakage occurs during contact suction.

(3) The utility model discloses a gas circuit control of evacuation, included evacuation, broken vacuum and tablet separation three. During vacuum pumping, the vacuum pump is adopted in the pumping device in a specific embodiment, the pumped air of the vacuum pump is transmitted to the vacuum logic valve 3 through the vacuum filter 7, then transmitted to the second vent hole 21, and finally transmitted to the first vent hole 11, and the air of the contact surface of the first suction plate 1 and the sheet resistor or the sheet capacitor is pumped away, so that the first suction plate and the sheet resistor or the sheet capacitor are tightly attached together, and the material is sucked.

The vacuum breaking is used for breaking the vacuum state between the first suction plate 1 and the contact surface of the chip resistor or the chip capacitor when the material is adsorbed and moved to a preset position, so that the first suction plate and the chip resistor or the chip capacitor are separated, and the vacuum breaking is needed because the chip resistor or the chip capacitor is light in weight and soft in texture, and when the vacuum pump stops sucking, the chip resistor or the chip capacitor can not fall off from the first suction plate 1 under the influence of self gravity, so that a vacuum breaking air path needs to be designed to separate the material.

And the effect of setting up tablet separation gas circuit is to prevent to fold the material: namely, the material sheet separating block 10 blows air to the stacked chip resistor or chip capacitor from the air blowing holes 101 on the material sheet separating block, so that the uppermost chip resistor or chip resistor to be processed is separated from the material below by blowing. The sheet resistor or the sheet capacitor is light in weight and soft in texture, and can be easily adhered together when a plurality of materials are stacked together, and if the sheet separating block is not arranged, two or even a plurality of materials can be simultaneously sucked in the adsorption process, so that the subsequent processing is influenced.

(4) A manifold plate 300 is provided above the second suction plate 2 so as to facilitate the parallel manifold of the respective vacuum logic valves 3.

(5) A top plate 40 is arranged above the second suction plate 2, and a guide post 60 is arranged on the top plate 40, so that the device 100 can be conveniently butted with other equipment. The tension spring 70 is provided at the center of the four sides of the top plate 40 to balance the weight of the components such as the first suction plate 1 and the second suction plate 2 below and reduce the downward pressure of the device 100.

Please refer to fig. 1 to 11.

Description of the drawings: only the gas pipe connecting the electronic pressure switch 6 and the tee 81 is shown in fig. 3, the connecting gas pipes of other devices are shown in all the figures, and the gas circuit connection is carried out according to the gas circuit principle diagram shown in fig. 11.

The utility model discloses a vacuum suction face suction structure, include

The suction plate comprises a first suction plate 1, wherein a first vent hole 11 is formed in the first suction plate 1; the bottom surface of the first suction plate 1 is in contact with the material, and the first vent hole performs air suction on the contact surface to form vacuum, so that the material is sucked.

The second suction plate 2 is provided with at least one second vent hole 21; the diameter of the second vent hole 21 > the diameter of the first vent hole 11; the second vent hole 21 is adapted to be connected to a suction device, in the embodiment of the present invention, to the vacuum logic valve in a gas-tight manner, so that the suction device draws air through the second vent hole 21 to the air cavity and then to the first vent hole 11.

The second suction plate 2 is connected to the top surface of the first suction plate 1, at least one air cavity is formed between the bottom surface of the second suction plate 2 and the top surface of the first suction plate 1, the second vent holes 21 are communicated with the air cavities in a one-to-one correspondence manner, each air cavity is communicated with a plurality of first vent holes 11 in a correspondence manner, and the sum of the cross-sectional areas of the first vent holes 11 corresponding to each air cavity is larger than the cross-sectional area of the second vent holes 21;

when there are at least two air chambers, each air chamber is hermetically isolated.

In a specific embodiment, at least one first groove 22 is recessed upward from the bottom surface of the second suction plate 2, and the first grooves 22 are in one-to-one correspondence with the second ventilation holes 21; the first grooves 22 and the top surface of the first suction plate 1 form the air chambers.

In a specific embodiment, there are 8 first grooves 22.

In another embodiment, not shown in the drawing, in a specific implementation, the first grooves may be symmetrically arranged on the top surface of the first suction plate 1 to form the second grooves (not shown), the top surface of the first suction plate 1 is recessed downward to form at least one second groove (not shown), and the second grooves (not shown) are in one-to-one correspondence to the second ventilation holes 22; the second recess (not shown) and the bottom surface of the second suction plate 2 form the air chamber.

Of course, in other embodiments, the air cavity may also be formed by the first recess 22 and a second recess (not shown).

The utility model also provides a device 100 that vacuum was absorb, include

The surface suction structure;

the number of the vacuum logic valves 3 is equal to that of the second vent holes 21 of the surface suction structure, and the vacuum logic valves 3 are connected to the second vent holes 21 in a one-to-one corresponding airtight manner; the vacuum logic valve 3 is also conventional, for example of the type: ZP2V _ a5_07, which is in one-way conduction during suction, has the function of a partial one-way valve, and because each vacuum logic valve 3 is connected in parallel during vacuum pumping, when air leaks from the first vent hole 11 and the material contact surface corresponding to a certain vacuum logic valve 3, the vacuum logic valve 3 in the air leakage state does not affect the vacuum pumping of the other vacuum logic valves 3. The difference between the above mentioned valve and the non-return valve is that the vacuum logic valve is not a non-return valve in the strict sense, and the vacuum logic valve has a rated air pressure, and the rated air pressure is larger than the atmospheric pressure, i.e. when the air is leaked, the atmospheric pressure will not reverse the vacuum logic valve conductor, and when the air pressure blown from the vacuum break valve 4 is larger than the rated air pressure, the vacuum logic valve 3 will be conducted reversely, so that the air is blown from the vacuum logic valve 3 to the first vent hole 11, and the first suction plate 1 and the material are separated, i.e. the vacuum logic valve 3 is in the vacuum breaking state.

A vacuum break valve 4; the vacuum break valve 4 is conventional.

A suction device 5; the outlet of the vacuum breaker valve and each vacuum logic valve are connected in parallel in a gas-tight manner and then connected to the suction device; the suction device 5 is an existing device, for example, a vacuum pump 5 is used.

An electronic pressure switch 6; the electronic pressure switch is connected between the suction device and the vacuum logic valve. In specific implementation, in order to facilitate reading of the electronic pressure switch 6, the electronic pressure switch 6 is connected by a three-way joint 81 on a pipeline between the vacuum pump 5 and the vacuum filter 7 through an air pipe, so that the electronic pressure switch 6 can be externally connected, the electronic pressure switch 6 is not installed on the vacuum suction device 100, but the electronic pressure switch 6 is installed on other supporting objects, only convenient reading is needed, and the installation position has no other special requirements. The electronic pressure switch 6 is available and can be purchased on the market directly. The electronic pressure switch 6 has the functions of: the vacuum degree of the suction device 5 is preset, namely when the electronic pressure switch 6 reaches a preset pressure value, the electronic pressure switch indicates that the material is adsorbed at the moment and can be moved, so that the safety protection effect is achieved, and the vacuum degree of the vacuum degree can be conveniently adjusted to a proper value. When the vacuum pump is used specifically, the preset pressure can be determined through debugging in advance, so that the material can be adsorbed, the vacuumizing force cannot be too large, the surface of the material is adsorbed to deform, and then batch production and processing are carried out.

In a specific embodiment, a vacuum filter 7 is further included; the vacuum filter is used for filtering air impurities.

The outlet of the vacuum breaker valve 4 and each vacuum logic valve 3 are connected in parallel and then are connected with the inlet of the vacuum filter 7 in an airtight way, in the concrete implementation, the outlet of the vacuum filter 7 is connected with the suction device 5 in an airtight way through a tee joint 82;

the electronic pressure switch 6 is connected between the suction device 5 and the vacuum filter 7, and the three are connected together through a tee 81.

In a specific embodiment, the device further comprises a first air blowing speed regulating valve 9; the outlet of the vacuum break valve 4 is connected in an airtight manner to the inlet of the first blowing speed-regulating valve 9; the outlet of the first blow speed control valve 9 is connected in parallel with each of the vacuum logic valves 3. The first blowing speed regulating valve 9 is used for regulating the gas flow of the vacuum breaking gas circuit.

In a specific embodiment, as shown in fig. 7 and 8, the method further comprises

A web separation block 10; the inner side surface of the material sheet separating block 10 is provided with a plurality of air blowing holes 101; the material sheet separating block 10 is further provided with an air inlet 102, and the air inlet 102 is communicated with each air blowing hole 101; the material sheet separating block 10 is movably connected to the side surface of the first suction plate 1 or the second suction plate 2 of the surface suction structure, and the air blowing holes 101 are located below the first suction plate 1 and arranged towards the inner side.

In a specific embodiment, four second blow speed adjusting valves 20 are further included; in a specific embodiment, each of the second blow speed control valves 20 is fixedly connected to the second suction plate 2 by a connecting plate 201.

Four material sheet separating blocks 10 are provided;

at least two adjusting through holes 103 are formed in the side surface of each material sheet separating block 10, in the embodiment shown in the drawings, the adjusting through holes 103 are strip-shaped holes, and in other embodiments, the adjusting through holes can also be holes in the shapes of elliptical holes and the like; therefore, the height direction position of the material sheet separating block 10 is adjusted, and the height position of the air blown to the material by the air blowing holes 101 is adjusted, so that the material overlapping prevention effect is better.

Screw holes 23 are respectively formed in four side surfaces of the second suction plate 2, and the number of the screw holes 23 in each side surface is equal to the number of the adjusting through holes 103 in each material sheet separating block 10;

in the embodiment shown in the drawings, the second air-blowing speed-adjusting valve 20 is connected to the air inlet 102 in a one-to-one air-tight manner, a right-angle two-way 202 is installed on the air inlet 102, and the two-way 202 is communicated with the second air-blowing speed-adjusting valve 20. In a specific embodiment, four second blowing speed regulating valves 20 are connected in parallel and then connected to the material sheet separation electromagnetic valve 30; the material sheet separating solenoid valve 30 may be an existing two-position two-way solenoid valve, and then the material sheet separating solenoid valve 30 is connected to the controller.

The four material sheet separating blocks 10 are connected to four side surfaces of the second suction plate 2 in a one-to-one correspondence manner, and are arranged in pairs and the air blowing holes are arranged in opposite directions, so that the pressure of air blowing to the material is more balanced in four directions, the position of the material is not changed too much in the material overlapping prevention air blowing process, that is, the position deviation is reduced, and each adjusting through hole 103 is locked into the screw hole 23 after being penetrated by a bolt (not shown).

In a specific embodiment, as shown in fig. 9, further comprising

The top plate 40 is provided with four through holes 401, and the four through holes 401 are arranged in a rectangular shape;

four linear bearings 50 are arranged, and the four linear bearings 50 are fixedly connected in the four through holes 401 in a one-to-one correspondence manner; the linear bearing 50 is conventional.

Four guide posts 60, wherein the number of the guide posts 60 is four; the four guide posts 60 are slidably embedded into the four linear bearings 50 one by one, and the bottom ends of the four guide posts are fixedly connected to the second suction plate 2; so that the first suction plate 1 and the second suction plate 2 can slide up and down with respect to the top 40

Four tension springs 70, wherein the number of the tension springs 70 is four; the four tension springs 70 are respectively fixedly connected to the middle points of the four sides of the top plate 40, and the bottom end of each tension spring 70 is fixedly connected to the top of the second suction plate 2. In a specific embodiment, as shown in fig. 9, the top plate 40 is fixedly mounted with a first fixing block 80, a side surface of the first fixing block 80 is provided with a screw hole 801, and a top end of the tension spring 70 is locked into the screw hole 801 by a bolt (not shown), so that a bottom end of the tension spring 70 is fixed. The top of the second suction plate 2 is fixedly provided with a second fixing block 90, a threaded hole 901 is also formed in the side surface of the second fixing block 90, and the bottom end of the tension spring 70 is fixed by penetrating through the threaded hole 901 by a bolt (not shown) and then locking the bottom end of the tension spring 70. The tension spring 70 plays a role in buffering and balancing the weight of each component below the top plate 40, and the downward pressure during material adsorption is reduced.

In a specific use mode, the top end of the guide post 70 is fixedly connected with a carrying device (not shown), and a cushion pad 200 may be disposed on the top of the guide post 70 to increase the cushioning effect.

The vacuum pump is adopted as the suction device 5, the vacuum pump 5 is connected with a vacuum opening electromagnetic valve 51, the vacuum opening electromagnetic valve 51 is also conventional, and only a two-position two-way electromagnetic valve is adopted.

The vacuum breaking valve 4 and the tablet separation solenoid valve are respectively connected to an air compressor, and an air source is provided by the air compressor.

The vacuum opening solenoid valve 51, the electronic pressure switch 6, the vacuum breaking valve 4 and the web separating solenoid valve 30 are respectively connected to a controller (not shown) of the moving device, and the controller (not shown) may be an existing motion control card, such as model: positive motion ZMC 3031.

The working principle is as follows:

the blowing flow of the first blowing speed regulating valve 9, the pressure value of the electronic pressure switch and the blowing flow value of the second blowing speed regulating valve 20 are preset. The area of the first suction plate 1 is larger than that of the chip resistor, so that the contact area is ensured by covering the chip resistor.

When the material is sucked, the controller (not shown) closes the vacuum breaking valve 4, so that the vacuum breaking gas path is closed. The controller moves the device 100 to a position right above the chip resistor according to a predetermined track, then moves down to contact with the uppermost chip resistor, and can set the sensor to detect whether the chip resistor is in place, or can determine whether the chip resistor is in place by presetting the track, namely, each time the chip resistor is lowered to a predetermined height, and the thickness of each chip resistor is the same, namely, the height of each lowering is equal to the height of the last time plus the thickness of the chip resistor. After the materials are in place, a controller (not shown) starts a vacuum pump 5 through the vacuum opening solenoid valve 51 to work, vacuumizing is carried out, the chip resistors are adsorbed, when the electronic pressure switch 6 reaches a preset pressure, the surface of the chip resistors is adsorbed, the electronic pressure switch 6 feeds back a signal to the controller (not shown), the controller (not shown) starts the blowing speed regulating valve 20 through the material sheet separating solenoid valve 30 to work, air is blown to the materials for a plurality of times, and the uppermost chip resistor is separated from the lower chip resistor to prevent the stacking of the materials;

then, the controller (not shown) moves the material to a predetermined processing area in a predetermined trajectory while the web separation solenoid valve 30 closes the web separation gas path.

Then, the controller (not shown) turns off the vacuum pump 5 by the vacuum-on solenoid valve 51, opens the vacuum break valve 4, blows air to the vacuum logic valve 3, and blows air to the surface of the chip resistor along the second vent hole 21 to the first vent hole 11, thereby separating the chip resistor from the first suction plate 1.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims (10)

1. The utility model provides a face that vacuum was absorb inhales structure which characterized in that: comprises that

The first suction plate is provided with a first vent hole;

the second suction plate is provided with at least one second vent hole; the diameter of the second vent hole is larger than that of the first vent hole;

the second suction plate is connected to the top surface of the first suction plate, at least one air cavity is formed between the bottom surface of the second suction plate and the top surface of the first suction plate, the second vent holes are communicated with the air cavities in a one-to-one correspondence manner, each air cavity is communicated with a plurality of first vent holes in a correspondence manner, and the sum of the cross-sectional areas of the first vent holes corresponding to each air cavity is larger than the cross-sectional area of the second vent hole;

when there are at least two air chambers, each air chamber is hermetically isolated.

2. A vacuum-assisted facelift structure, as in claim 1, wherein: the bottom surface of the second suction plate is upwards sunken with at least one first groove, and the first grooves are communicated with the second vent holes in a one-to-one correspondence manner; the first groove and the top surface of the first suction plate form the air chamber.

3. A vacuum-assisted facelift structure, as in claim 2, wherein: there are 8 first grooves.

4. A vacuum-assisted facelift structure, as in claim 1, wherein: the top surface of the first suction plate is provided with at least one second groove in a downward concave mode, and the second grooves are communicated with the second vent holes in a one-to-one correspondence mode; the second groove and the bottom surface of the second suction plate form the air chamber.

5. A vacuum suction device, characterized in that: comprises that

The facial suction structure of any one of claims 1 to 4;

the number of the vacuum logic valves is equal to that of the second vent holes of the surface suction structure, and the vacuum logic valves are connected with the second vent holes in a one-to-one corresponding airtight mode;

a vacuum break valve;

a suction device; the outlet of the vacuum breaker valve and each vacuum logic valve are connected in parallel in a gas-tight manner and then connected to the suction device;

an electronic pressure switch; the electronic pressure switch is connected between the suction device and the vacuum logic valve.

6. A vacuum suction device as claimed in claim 5, wherein: also comprises a vacuum filter;

the outlet of the vacuum breaking valve and each vacuum logic valve are connected in parallel and then are connected with the inlet of the vacuum filter in an airtight mode, and the outlet of the vacuum filter is connected with the suction device in an airtight mode;

the electronic pressure switch is connected between the suction device and the vacuum filter.

7. A vacuum suction device as claimed in claim 5, wherein: the first air blowing speed regulating valve is also included; an outlet of the vacuum break valve is hermetically connected to an inlet of the first blow speed regulation valve; and the outlet of the first blowing speed regulating valve is connected with each vacuum logic valve in parallel in an airtight mode.

8. A vacuum suction device as claimed in claim 5, wherein: also comprises

A web separation block; the inner side surface of the material sheet separating block is provided with a plurality of air blowing holes; the material sheet separating block is also provided with an air inlet which is communicated with each air blowing hole; the material sheet separating block is movably connected to the side face of the first suction plate or the second suction plate of the surface suction structure, and the air blowing holes are located below the first suction plate and arranged towards the inner side.

9. A vacuum suction device as claimed in claim 8, wherein: the air blower also comprises four second air blowing speed regulating valves;

four material sheet separating blocks are arranged;

the side surface of each material sheet separating block is provided with at least two adjusting through holes;

screw holes are respectively formed in four side surfaces of the second suction plate, and the number of the screw holes in each side surface is equal to the number of the adjusting through holes of each material sheet separating block;

the second air blowing speed regulating valves are connected to the air inlet holes in a one-to-one corresponding and air-tight mode;

the four material sheet separating blocks are connected to four side faces of the second suction plate in a one-to-one correspondence mode, the four material sheet separating blocks are pairwise symmetrical, the air blowing holes are arranged in opposite directions, and each adjusting through hole is locked into the screw hole after penetrating through the adjusting through hole through a bolt.

10. A vacuum suction device as claimed in claim 8, wherein: the device is characterized by further comprising a top plate, wherein four through holes are formed in the top plate and are arranged in a rectangular shape;

four linear bearings are arranged, and the four linear bearings are fixedly connected in the four through holes in a one-to-one correspondence manner;

four guide posts; the four guide columns are embedded into the four linear bearings in a one-to-one corresponding sliding manner, and the bottom ends of the four guide columns are fixedly connected to the second suction plate;

four tension springs are arranged; and the four tension springs are respectively and fixedly connected to the middle points of the four sides of the top plate, and the bottom ends of the tension springs are fixedly connected to the tops of the second suction plates.

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