CN220290775U - Material tray feeding and receiving mechanism - Google Patents

Abstract

The utility model discloses a feeding and receiving mechanism of a material tray, which comprises a bottom frame, a conveying assembly, a jacking assembly and a tray dividing support, wherein the bottom frame comprises a first station, a second station and a third station, the conveying assembly can be horizontally connected with the bottom frame in a sliding mode and can reciprocate between the first station and the second station, the jacking assembly is connected with the bottom frame, the telescopic end of the jacking assembly can reciprocate between the second station and the third station, the top end of the bottom frame is hinged with one end of a plurality of tray dividing supports, the other end of each tray dividing support extends outwards to form a flat structure, the jacking assembly comprises a plurality of finger cylinders, and the telescopic ends of the finger cylinders face the extending ends of the tray dividing support. The utility model has the beneficial effects that: the material distribution and stacking are realized through the separation bracket, the use of a telescopic mechanism and a servo motor is reduced, the structure is simple, the equipment is simplified, and the cost is reduced.

Description

Material tray feeding and receiving mechanism

Technical Field

The utility model relates to automatic semiconductor chip collecting and discharging equipment, in particular to a feeding and collecting mechanism of a material tray

Background

QFN (quad flat non-leaded package) chips are cut into single sheets and then are loaded into a tray, and the trays are stacked and fixed by using a binding tape so as to facilitate transportation between the manufacturing processes. In the next process or detection procedure, the chips need to be taken out from the tray for detection or treatment, and the trays need to be stacked again after the detection is completed.

The prior art adopts a servo motor and four telescopic brackets controlled by air cylinders for material separation: the first step, the servo motor is lifted to the position of the material tray to support all the material trays; secondly, retracting the telescopic bracket; thirdly, the servo motor lowers a material tray position; the fourth step of stretching out the telescopic bracket to support all trays above the second tray; fifthly, the servo motor descends to take a coil of material to finish the task. Stacking: the first step, a servo motor takes a tray of material and lifts the tray to the position of the tray upwards, wherein the servo motor props all trays; secondly, retracting the telescopic bracket; thirdly, continuously jacking the servo motor until all the positions of the trays are higher than the telescopic bracket; fourthly, extending the telescopic bracket; fifth, the servo motor descends to put all the trays on the telescopic support. The method for manufacturing the servo and the telescopic bracket is complex in process, and the servo motor is high in cost.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information has been made as prior art that is well known to a person of ordinary skill in the art.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: how to solve the problems of complex structure and high cost of the prior feeding and receiving mechanism.

The utility model solves the technical problems by the following technical means:

the utility model provides a charging tray pay-off and receiving mechanism, includes chassis, transportation subassembly, jacking subassembly, divides a set of support, the chassis includes first station, second station, third station, transportation subassembly can horizontal slip connect the chassis and come and go between first station and second station, the jacking subassembly is connected the chassis and its flexible end can come and go in second station and third station, the top of chassis articulates a plurality of divide the one end of set of support, divide the other end of set of support to outwards extend and be flat structure, the jacking subassembly includes a plurality of finger cylinders, the flexible end orientation of finger cylinder divide the extension end of set of support.

In the utility model, the periphery of the material tray is provided with the notch, and one end of the flat-shaped structure of the tray separating bracket can be inserted into the notch of the material tray; when the material is distributed, one end of a flat structure at one end of a tray separating bracket is positioned at the bottom surface of the lowest fabric tray, a jacking component is lifted to jack up the tray separating bracket and all the fabric trays, at the moment, a finger cylinder is jacked up to prevent the tray separating bracket from falling to the bottom surface of a first fabric tray, then the jacking component is lifted down, at the moment, the tray separating bracket is synchronously lifted down, and is blocked by the finger cylinder to fall to a notch of the top surface of the first fabric tray (from below), the tray separating bracket supports all the fabric trays above a second fabric tray, the jacking component is further lifted down, the first fabric tray is lifted down together and falls on a conveying component, and the conveying component conveys the first fabric tray to a first station to finish the material distribution; when stacking, the conveying assembly conveys a tray to the second station through the first station, the jacking assembly ascends to jack up the tray separating support, the tray separating support automatically falls below the tray, and the jacking assembly descends to place the tray on the top surface of the flat structure of the tray separating support, so that stacking is completed. The current telescopic mechanism is usually manufactured by matching an air cylinder with a servo motor, and has high cost. According to the utility model, the material distribution and stacking are realized through the disc separation bracket, the use of a telescopic mechanism and a servo motor is reduced, the structure is simple, the equipment is simplified, and the cost is reduced.

Preferably, the chassis includes curb plate, roof, backup pad, the curb plate relative arrangement, the curb plate is the step form, the roof is connected two the high top of curb plate height, the backup pad is on a parallel with the roof and is located the roof below, the middle part of roof has first through-hole, the backup pad is located the perpendicular projection department of first through-hole and is the second through-hole.

The underframe layout is reasonable, and the vertical square material distribution, stacking and horizontal feeding are realized.

Preferably, the first through hole is a rectangular hole, and the size of the first through hole is larger than that of the tray.

The size of the first through hole is slightly larger, so that the smooth passing of the material tray is ensured.

Preferably, the transportation assembly comprises a rodless cylinder, a transportation plate, a guide rail, a sliding block and a placing block, wherein the rodless cylinder is connected with two sides of the support plate in parallel with the guide rail, the telescopic end of the rodless cylinder is connected with the transportation plate, the sliding block is connected with the bottom of the transportation plate, the sliding block is connected with the guide rail in a sliding mode, and the placing block is connected with two ends of the top surface of the transportation plate.

Preferably, the transportation assembly further comprises a pressing plate for fixing the material tray and a pressing plate cylinder, wherein the pressing plate cylinder is connected with two ends of the top surface of the transportation plate and is positioned on one side of the placement block, and the telescopic end of the pressing plate cylinder is connected with the pressing plate.

The clamp plate can carry out spacingly to the charging tray on the transportation subassembly, guarantees the stability when transporting.

Preferably, the transport plate comprises a first notch and the support plate comprises a second notch at the first station, and the first notch is overlapped with or partially overlapped with the second notch when the transport plate is at the first station; the first through opening coincides or partially coincides with the first slot opening when the transport plate is in the second station.

Wherein first notch and second notch are convenient for the centre gripping, when adopting manipulator or other clamping equipment to carry out the centre gripping to the charging tray, the design of notch can realize from the bottom centre gripping, reduces clamping equipment and transportation subassembly's interference.

Preferably, the chassis further comprises a limit column, the limit column comprises a corner plate and a corner frame, the corner frame is connected with the top surface of the top plate and located around the first through hole, the corner plate is connected with the corner frame, the corner plates form a space for limiting horizontal movement of the material tray, and one end of the tray separating support is hinged to the side surface of the corner frame.

The spacing post is located around the charging tray for the charging tray can be followed spacing post direction of height and is overlapped, guarantees superimposed stability and uniformity.

Preferably, one end of the tray separation bracket, which is close to the finger cylinder, extends to the finger cylinder to form a flat structure; the periphery of the material tray comprises notches, and when the material tray is accumulated, the flat structure of the tray separating bracket is inserted into the notches of the material tray; when the material tray rises and the finger cylinder pushes the tray separating support, the flat structure of the tray separating support is separated from the notch.

Preferably, the jacking assembly comprises a mounting plate, a jacking cylinder and a jacking plate, wherein the mounting plate is connected with the bottom surface of the second through opening of the supporting plate, the fixed end of the jacking cylinder is fixedly connected with the bottom surface of the mounting plate, and the telescopic end of the jacking cylinder is connected with the jacking plate.

Preferably, the jacking assembly further comprises a plurality of support columns and sliding sleeves, the sliding sleeves are connected with the mounting plate, the support columns are connected with the sliding sleeves in a sliding mode, and the tops of the support columns are connected with the jacking plate.

The support column realizes the functions of guiding and stabilizing the jacking plate.

The utility model has the advantages that:

(1) In the utility model, the periphery of the material tray is provided with the notch, and one end of the flat-shaped structure of the tray separating bracket can be inserted into the notch of the material tray; the initial state is that one end of a flat structure at one end of a tray separation bracket is positioned on the bottom surface of the lowest fabric tray, a jacking component is lifted to jack up the tray separation bracket and all trays, at the moment, a finger cylinder is jacked up to prevent the tray separation bracket from falling to the bottom surface of a first tray, then the jacking component is lowered, at the moment, the tray separation bracket is synchronously lowered, and is blocked by the finger cylinder to fall to a notch on the top surface of the first tray (from below), the tray separation bracket supports all trays above a second tray, the jacking component is further lowered, the first tray is lowered together and falls on a conveying component, and the conveying component conveys the first tray to a first station to finish the material separation; when stacking, the conveying assembly conveys a tray to the second station through the first station, the jacking assembly ascends to jack up the tray separating support, the tray separating support automatically falls below the tray, and the jacking assembly descends to place the tray on the top surface of the flat structure of the tray separating support, so that stacking is completed. According to the utility model, the material distribution and stacking are realized through the disc separation bracket, the use of a telescopic mechanism and a servo motor is reduced, the structure is simple, the equipment is simplified, and the cost is reduced;

(2) The underframe is reasonable in layout, and vertical square material distribution, stacking and horizontal material feeding are realized;

(3) The size of the first through hole is slightly larger, so that the smooth passing of the material tray is ensured;

(4) The pressing plate can limit the material tray on the conveying assembly, so that the stability during conveying is ensured;

(5) The first notch and the second notch are convenient to clamp, if a mechanical arm or other clamping devices are used for clamping the material tray, the design of the notches can realize clamping from the bottom, and interference between the clamping devices and the conveying assembly is reduced;

(6) The limiting columns are positioned around the material tray, so that the material tray can be overlapped along the height direction of the limiting columns, and the stability and consistency of the overlapping are ensured;

(7) The support column realizes the functions of guiding and stabilizing the jacking plate.

Drawings

FIG. 1 is a schematic structural view of a tray feeding and receiving mechanism according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a tray feeding and receiving mechanism according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a tray feeding and receiving mechanism according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of a tray support according to an embodiment of the present utility model;

FIG. 5 is a side view of a tray feeding and receiving mechanism according to an embodiment of the present utility model;

FIG. 6 is a top view of a tray feeding and receiving mechanism according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a first embodiment of a material distribution operation;

FIG. 8 is a second schematic diagram of a material-distributing operation according to an embodiment of the present utility model;

FIG. 9 is a third schematic diagram of a material-distributing operation according to an embodiment of the present utility model;

reference numerals in the drawings:

1. a chassis; 11. a side plate; 12. a top plate; 13. a support plate; 14. a limit column; 141. a corner plate; 142. a corner bracket;

2. a transport assembly; 21. a rodless cylinder; 22. a transport plate; 23. a guide rail; 24. a slide block; 25. placing a block;

3. a jacking assembly; 31. a mounting plate; 32. jacking the air cylinder; 33. a jacking plate; 34. a support column; 35. a sliding sleeve; 36. a finger cylinder;

4. a tray separating bracket;

5. and a material tray.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1, fig. 2 and fig. 3, the tray feeding and receiving mechanism comprises a chassis 1, a transport assembly 2, a jacking assembly 3 and a tray separating support 4, wherein the chassis 1 comprises a first station, a second station and a third station, the transport assembly 2 can be horizontally and slidably connected with the chassis 1 and reciprocate between the first station and the second station, the jacking assembly 3 is connected with the chassis 1, the telescopic ends of the jacking assembly can reciprocate between the second station and the third station, the top end of the chassis 1 is hinged with one ends of the tray separating support 4, the other ends of the tray separating support 4 outwards extend to form a flat structure, the jacking assembly 3 comprises a plurality of finger cylinders 36, and the telescopic ends of the finger cylinders 36 face the extending ends of the tray separating support 4.

In this embodiment, as shown in fig. 5 and 6, the tray 5 at the right end in fig. 6 is located at the first station, and the tray 5 at the left end is located at the third station; the second station is located below the third station in fig. 5.

Specifically, the chassis 1 includes a side plate 11, a top plate 12, and a support plate 13, where two side plates 11 are arranged oppositely, the side plates 11 are in a step shape, the top plate 12 is connected with two tops with the height of the side plates 11, the support plate 13 is parallel to the top plate 12 and is located below the top plate 12, the length of the support plate 13 is greater than that of the top plate 12, and the length of the support plate 13 is the same as that of the side plates 11. In this embodiment, the top plate 12 is a rectangular plate, and a first through hole is formed in the middle of the top plate 12, and is also a rectangular hole, and the size of the first through hole is slightly larger than that of the tray 5, so that smooth passing of the tray 5 is ensured; the support plate 13 comprises a second through opening at the vertical projection of the first through opening, but the second through opening is closed by the jacking assembly 3.

The underframe 1 further comprises a limiting column 14, the limiting column 14 comprises a corner plate 141 and corner frames 142, the corner frames 142 are connected with the top surface of the top plate 12 and are located around the first through hole, two corner frames 142 form a 90-degree included angle, the corner plate 141 is a 90-degree bending plate, the corner plate 141 is connected with the corner frames 142, and a plurality of corner plates 141 form a space for limiting the horizontal movement of the material tray 5, so that it is required to explain that: the size of the limit space formed by the angle plate 141 is larger than that of the tray 5, and the tray 5 is limited to horizontally move to form a certain accommodating space, so that the tray 5 is kept to be overlapped according to the height direction of the angle plate 141, and the tray 5 is not limited to be in a completely fixed state. The limiting columns 14 are located around the tray 5, so that the tray 5 can be overlapped along the height direction of the limiting columns 14, and the overlapped stability and consistency are ensured.

The whole underframe 1 is reasonable in layout, and vertical square material distribution, stacking and horizontal material feeding and feeding are realized.

As shown in fig. 4, one end of the tray support 4 is hinged to a side of the corner bracket 142. The other end extends to the material tray 5 and is in a flat structure. The structure of the dish-dividing support 4 is such that the hinge point is used as the limit, the weight of the right end of the dish-dividing support 4 is larger than that of the left end, and the bottoms of the two ends of the dish-dividing support 4 are arc-shaped, so that interference with the top plate 12 is reduced in the rotating process, and the bottom of the left end is also provided with a tip, so that the dish-dividing support 4 can be abutted on the top plate 12 after rotating for a certain angle, and the rotation of the dish-dividing support is prevented from being excessive. The top surface of the tray dividing support 4 needs to support the tray 5, so that the top surface of the tray dividing support 4 is parallel to the bottom surface, and when the tray dividing support 4 supports the tray 5, the bottom surface of the tray dividing support is completely contacted with the top plate 12, and the top surface is horizontal, so that the acting force for supporting is improved to completely act on the top plate 12. The top surface of the side surface of the material tray 5 is provided with a notch, and the flat structure of the tray separating bracket 4 can be inserted into the notch of the material tray 5.

As shown in fig. 2, 3 and 5, the transport assembly 2 includes a rodless cylinder 21, a transport plate 22, a guide rail 23, a sliding block 24, and a placement block 25, where the rodless cylinder 21 and the guide rail 23 are connected with two sides of the support plate 13 in parallel along the length direction of the side plate 11, a telescopic end of the rodless cylinder 21 is connected with a bottom surface of one end of the transport plate 22, the sliding block 24 is connected with a bottom of the other end of the transport plate 22, and the sliding block 24 is slidably connected with the guide rail 23, that is, the transport plate 22 is driven by the rodless cylinder 21 to reciprocate from a first station to a second station along the guide rail 23, the placement block 25 is connected with two ends of a top surface of the transport plate 22, and the placement block 25 is used for supporting the tray 5.

The conveying assembly 2 further comprises a pressing plate 26 for fixing the material tray and a pressing plate air cylinder 27, wherein the pressing plate air cylinder 27 is connected with two ends of the top surface of the conveying plate 22 and is positioned on one side of the placing block 25, and the telescopic end of the pressing plate air cylinder 27 is connected with the pressing plate 26. When the tray 5 is located on the placement block 25, the pressing plate can be stretched to the upper side of the tray 5 through stretching out of the telescopic end of the pressing plate cylinder 27, and the pressing plate 26 can limit the tray 5 on the placement block 25, so that stability during transportation is guaranteed.

Buffer mechanisms are also arranged at the two ends of the rodless cylinder 21. Of course, the rodless cylinder may be replaced by other telescopic power members.

In this embodiment, the transport plate 22 comprises a first notch and the support plate 13 comprises a second notch at the first station, the first notch coinciding or partially coinciding with the second notch when the transport plate 22 is in the first station; wherein after first notch and the coincidence of second notch for the bottom of charging tray 5 is empty, the centre gripping of being convenient for, when adopting manipulator or other clamping equipment to carry out the centre gripping to charging tray 5, the design of notch can realize from the bottom centre gripping, reduces clamping equipment and transportation subassembly 2's interference. When the conveying plate 22 is at the second station, the first through opening is overlapped with the first notch or partially overlapped with the first through opening, so that the tray 5 can be smoothly separated from the placing block 25 and conveyed upwards to the tray separating bracket 4 to realize stacking or fall from the tray separating bracket 4 to the placing block 25 to realize separating.

As shown in fig. 3, the jacking assembly 3 includes a mounting plate 31, a jacking cylinder 32, a jacking plate 33, a plurality of support columns 34, and a sliding sleeve 35, wherein the mounting plate 31 is connected with the bottom surface of the second through opening of the support plate 13 and seals the second through opening, the fixed end of the jacking cylinder 32 is fixedly connected with the bottom surface of the mounting plate 31, and the telescopic end of the jacking cylinder 32 is connected with the jacking plate 33. The sliding sleeve 35 is connected with the mounting plate 31, the supporting columns 34 are connected with the sliding sleeve 35 in a sliding mode, the tops of the supporting columns 34 are connected with the jacking plate 33, and the supporting columns 34 achieve the functions of guiding and stabilizing the jacking plate 33. Namely: when the transport plate 22 is located at the second station, the lifting plate 33 can lift the tray 5 on the transport plate 22 upwards from the first notch of the transport plate 22, so as to prepare for stacking; alternatively, the lifting plate 33 moves down with the separated trays 5 until the trays are below the conveying plate 22, and the trays 5 are placed on the placement blocks 25, so that the subsequent conveying work of the separated materials is realized.

The working procedure of this embodiment is:

during material distribution, the initial state is that one end of a flat structure at one end of the tray distribution support 4 is positioned on the bottom surface of the lowest fabric tray 5, namely the top surfaces of the tray distribution supports 4 form a supporting surface, and a plurality of trays 5 are supported on the supporting surface. Under the driving of the rodless cylinder 21, the transport plate 22 carries the placement block 25 to the second station, at this time, no tray 5 is placed on the placement block 25, the transport plate 22 is located at a position between the top plate 12 and the lifting plate 33, the lifting plate 33 passes through the first notch by the action of the lifting cylinder 32, the synchronous finger cylinder 36 is synchronously lifted, all trays 5 are lifted, as shown in fig. 7, meanwhile, the tray separating bracket 4 is lifted, and the tray separating bracket 4 is limited to rotate towards the notch by the side surface of the finger cylinder 36, so that the tray separating bracket 4 is not inserted into the notch of the tray separating bracket 5; the jacking cylinder 32 starts to descend a small distance, at this time, the tray dividing support 4 descends synchronously, as shown in fig. 8, the telescopic end of the finger cylinder 36 withdraws, but the tray dividing support 4 is still supported by the top end of the finger cylinder 36 to enable the tray dividing support 4 to fall at the notch of the top surface of the first tray (from below), as shown in fig. 9, the tray dividing support 4 supports all trays above the second tray, the finger cylinder 36 withdraws, the jacking cylinder 32 descends further, the first tray descends together, the first tray descends from the third station to the second station and falls on the placing block 25, and the rodless cylinder 21 acts to transport the first tray to the first station to finish the material dividing;

when stacking, the tray is arranged on the placing block 25, the action of the rodless cylinder 21 conveys the tray on the placing block 25 from the first station to the second station, the action of the jacking cylinder 32 enables the jacking plate 33 to pass through the first notch and jack up the tray, then the tray is continuously lifted until the tray on the jacking plate 33 jacks up the tray separating bracket 4 and stops lifting after exceeding the tray separating bracket 4, and at the moment, the tray separating bracket 4 can automatically fall to the horizontal position because of the fact that the tray separating bracket 4 is not jacked up; the lifting cylinder 32 moves to descend with the lifting plate 33, the tray is placed on the top surface of the flat structure of the tray separating bracket 4, the lifting cylinder 32 only returns to the lower side of the conveying plate 22 with the lifting plate 33, and the conveying plate 22 returns to the first station, so that stacking is completed.

In the embodiment, the material distribution and stacking are realized through the disc distribution support 4, the use of a telescopic mechanism is reduced, the structure is simple, the equipment is simplified, and the cost is reduced.

Embodiment two:

on the basis of the first embodiment, the lifting plate 33 is a rectangular plate, and its size is smaller than that of the tray 5, so that smooth passing through the first through-hole and the like can be achieved. The fixed end of the finger cylinder 36 is embedded around the jacking plate 33, and the telescopic end of the finger cylinder can extend upwards.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The feeding and receiving mechanism for the material tray comprises a bottom frame, a conveying assembly, a jacking assembly and a tray separation support, wherein the bottom frame comprises a first station, a second station and a third station, the conveying assembly can be connected with the bottom frame in a horizontal sliding mode and reciprocate between the first station and the second station, the jacking assembly is connected with the bottom frame, the telescopic ends of the jacking assembly can reciprocate between the second station and the third station, the top end of the bottom frame is hinged to one end of the tray separation support, the other end of the tray separation support outwards extends to form a flat structure, the jacking assembly comprises a plurality of finger cylinders, and the telescopic ends of the finger cylinders face the extending ends of the tray separation support.

2. The tray feeding and receiving mechanism according to claim 1, wherein the chassis comprises side plates, top plates and support plates, the side plates are arranged oppositely, the side plates are in a step shape, the top plates are connected with two tops with high heights of the side plates, the support plates are parallel to the top plates and located below the top plates, a first through hole is formed in the middle of the top plates, and a second through hole is formed in the position, where the support plates are located, of the vertical projection of the first through hole.

3. The tray feeding and receiving mechanism of claim 2, wherein the first through opening is a rectangular opening and the size of the first through opening is larger than the size of the tray.

4. The tray feeding and receiving mechanism according to claim 2, wherein the transport assembly comprises a rodless cylinder, a transport plate, a guide rail, a sliding block and a placing block, the rodless cylinder is connected with two sides of the support plate in parallel with the guide rail, a telescopic end of the rodless cylinder is connected with the transport plate, the bottom of the transport plate is connected with the sliding block, the sliding block is slidably connected with the guide rail, and the placing block is connected with two ends of the top surface of the transport plate.

5. The tray feeding and receiving mechanism according to claim 4, wherein the transporting assembly further comprises a pressing plate for fixing the tray, and a pressing plate cylinder, the pressing plate cylinder is connected to two ends of the top surface of the transporting plate and located on one side of the placing block, and a telescopic end of the pressing plate cylinder is connected to the pressing plate.

6. The tray feeding and receiving mechanism of claim 4, wherein the transport plate includes a first slot, the support plate includes a second slot at a first station, and the first slot is coincident or partially coincident with the second slot when the transport plate is at the first station; the first through opening coincides or partially coincides with the first slot opening when the transport plate is in the second station.

7. The tray feeding and receiving mechanism according to claim 2, wherein the chassis further comprises a limit post, the limit post comprises a corner plate and a corner frame, the corner frame is connected with the top surface of the top plate and is located around the first through hole, the corner plate is connected with the corner frame, a plurality of corner plates form a space for limiting the horizontal movement of the tray, and one end of the tray separation bracket is hinged to the side surface of the corner frame.

8. The tray feeding and receiving mechanism according to claim 1, wherein one end of the tray separating bracket, which is close to the finger cylinder, extends to the finger cylinder to form a flat structure; the periphery of the material tray comprises notches, and when the material tray is accumulated, the flat structure of the tray separating bracket is inserted into the notches of the material tray; when the material tray rises and the finger cylinder pushes the tray separating support, the flat structure of the tray separating support is separated from the notch.

9. The tray feeding and receiving mechanism according to claim 2, wherein the jacking assembly comprises a mounting plate, a jacking cylinder and a jacking plate, the mounting plate is connected with the bottom surface of the second through hole of the supporting plate, the fixed end of the jacking cylinder is fixedly connected with the bottom surface of the mounting plate, and the telescopic end of the jacking cylinder is connected with the jacking plate.

10. The tray feeding and receiving mechanism according to claim 9, wherein the jacking assembly further comprises a plurality of support columns and a sliding sleeve, the sliding sleeve is connected with the mounting plate, the support columns are slidably connected with the sliding sleeve, and the tops of the support columns are connected with the jacking plate.