Tray stacking and placing device

Abstract

The utility model relates to the technical field of multi-layer tray stacking, in particular to a tray stacking and placing device which comprises a base and a plurality of tray stacking mechanisms, each tray stacking mechanism comprises a center lifting assembly, and the center lifting assemblies are used for lifting trays to be stacked; the side edge supporting and receding assembly is used for supporting the stacked tray and can be moved out from the lower portion of the stacked tray, and the side edge supporting and receding assembly is connected with the center lifting assembly through a connecting shaft; and the driving assembly is used for driving the connecting shaft to rotate. The problem of low working efficiency of stacking and placing the tray in the prior art is effectively solved; according to the tray conveying device, the structure that the first cam and the second cam are in linkage is adopted, the tray in the middle and the supporting plates on the sides can move in a staggered mode, and meanwhile under the action of the lifting plate and the supporting plates, the trays conveyed by the conveying belt can be sequentially lifted upwards and supported through the supporting plates.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-layer tray stacking, in particular to a tray stacking placement device. Background Art

[0002] A tray generally refers to a plastic tray used in the semiconductor industry to place semiconductor chips. A tray is generally flat, square, and has a certain height, and can be used to hold semiconductor chips. After the staff places the semiconductor chips on the tray, the tray with the chips needs to be stacked.

[0003] When stacking objects, some existing equipment uses a robot to lift and stack the objects. However, on the one hand, the cost of using a robot is high, and on the other hand, the hardness of the tray is low. Using a robot for adsorption can easily cause the tray to bend, thereby causing the chips on the tray to fall off. Therefore, the existing method of stacking trays is generally for staff to manually stack the trays, which results in low work efficiency and increases the workload of staff. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present utility model is to provide a tray stacking device, which effectively solves the problem of low efficiency of the existing tray stacking work.

[0005] The technical solution solved by the utility model is a tray stacking device, comprising a base and a plurality of tray stacking mechanisms arranged in parallel on the base, the tray stacking mechanisms comprising a central lifting assembly, the central lifting assembly is used to lift the trays to be stacked; a side support yielding assembly, the side support yielding assembly is used to support the stacked trays and can be moved out from under the stacked trays, the side support yielding assembly is connected to the central lifting assembly via a connecting shaft; and a driving assembly, the driving assembly is used to drive the connecting shaft to rotate.

[0006] Preferably, the central lifting assembly includes a first cam arranged on the connecting shaft, and the circumferential surface of the first cam acts on a side of the tray close to the central lifting assembly.

[0007] Preferably, the side support yielding assembly includes a second cam that rotates with the connecting shaft, and the angle between the second cam and the side of the first cam is 30 degrees.

[0008] Preferably, the side support yielding assembly also includes a driving plate driven by a second cam, the driving plate being provided with a first driving surface and a second driving surface in a stepped shape, the first driving surface being provided with a support plate slidably connected relative to the driving plate, and the driving plate being provided with an elastic assembly in the opposite direction to the driving direction of the second cam.

[0009] Preferably, the first driving surface and the second driving surface are connected via an arc-shaped transition surface.

[0010] Preferably, the driving assembly includes a rotating motor, a transmission belt and a pulley, the pulley is arranged on the output shaft of the rotating motor and the connecting shaft, and the pulley is covered on the two pulleys.

[0011] Preferably, it also includes an auxiliary component, which includes a frame, a supporting component and a transmission component. The supporting component includes a lifting plate and a lifting auxiliary plate. The lifting plate is arranged between the central lifting component and the tray. The lifting auxiliary plate is rotatably connected to a rotating wheel that contacts the circumferential surface of the first cam. The lifting auxiliary plate is fixedly connected to the supporting plate.

[0012] Preferably, the support assembly further comprises a guide structure, which comprises a guide column fixedly connected to the lifting auxiliary plate and slidably connected to the frame, and a terminal end of the guide column passes through the frame and is provided with a spring.

[0013] Preferably, the transmission component includes a conveyor belt arranged below the support plate, and the conveyor belt is used to transport the trays to be stacked.

[0014] Preferably, the frame is provided with limiting plates located at the four corners of the lifting plate, and the upper ends of the limiting plates are guard plates inclined outwards.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts a structure in which the first cam and the second cam are linked, so that the middle tray and the side support plates can move alternately. At the same time, under the action of the lifting plate and the support plate, the tray transmitted by the conveyor belt can be lifted upward in turn and supported by the support plate;

[0017] The utility model utilizes the setting of the first driving surface and the second driving surface to move the support plate when the driving plate is driven. When the second driving surface no longer limits the support plate, the support plate can be restored to its initial position under the action of the tension spring. At the same time, the arc transition surface between the first driving surface and the second driving surface can enable the support plate to move better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the tray stacking mechanism in the utility model;

[0020] Figure 3 It is a cutaway right-side perspective structural diagram of the tray stacking mechanism in the utility model;

[0021] Figure 4 It is a cutaway front view stereoscopic structural diagram of the tray stacking mechanism in the utility model;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the central lifting assembly in the utility model;

[0023] In the figure, 1-base; 2-connecting shaft; 3-first cam; 4-second cam; 5-driving plate; 6-first driving surface; 7-second driving surface; 8-support plate; 9-elastic component; 10-arc transition surface; 11-rotating motor; 12-transmission belt; 13-pulley; 14-frame; 15-lifting plate; 16-lifting auxiliary plate; 17-rotating wheel; 18-guide column; 19-conveyor belt; 20-limiting plate; 21-guard plate. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0025] Depend on Figures 1 to 5 A tray stacking device is provided, comprising a base 1 and a plurality of tray stacking mechanisms arranged in parallel on the base 1. The number of the tray stacking mechanisms is increased or decreased as needed, and the plurality of tray stacking mechanisms synchronously stack the trays, which can improve the stacking efficiency.

[0026] The tray stacking mechanism includes a central lifting assembly, which is used to lift the stacked trays. The central lifting assembly includes a first cam 3 arranged on a connecting shaft 2. The circumferential surface of the first cam 3 acts on a side of the tray close to the central lifting assembly, and the raised side of the cam can lift the entire tray.

[0027] The side support yielding assembly is used to support the stacked trays and can be moved out from under the stacked trays. The side support yielding assembly is connected to the central lifting assembly via the connecting shaft 2. Under the action of the connecting shaft 2, the first cam 3 and the second cam 4 rotate synchronously.

[0028] The side support yielding assembly includes a second cam 4 that rotates with the connecting shaft 2, and the included angle between the second cam 4 and the side of the first cam 3 is 30 degrees. The included angle between the first cam 3 and the second cam 4 can be such that when the first cam 3 is raised to the highest position for the tray, the second cam 4 prompts the sliding plate to move outward, so that the tray to be stacked can be supported by the support plate 8.

[0029] The side support yielding assembly also includes a driving plate 5 driven by the second cam 4, the driving plate 5 is provided with a first driving surface 6 and a second driving surface 7 in a stepped shape, the first driving surface 6 is provided with a support plate 8 slidably connected to the driving plate 5 via a tension spring, the driving plate 5 is provided with an elastic component 9 in the opposite driving direction to the second cam 4, the driving plate 5 drives the driving plate 5 to move upward, the elastic component 9 is a tension spring, which prompts the driving plate 5 to return to its original position.

[0030] The first driving surface 6 and the second driving surface 7 are connected via an arc-shaped transition surface 10. The step between the first driving surface 6 and the second driving surface 7 drives the support plate 8 to move outward to release the support for the stacked trays.

[0031] The driving assembly is used to drive the connecting shaft 2 to rotate. The driving assembly includes a rotating motor 11, a transmission belt 12 and a pulley 13. The pulley 13 is arranged on the output shaft of the rotating motor 11 and the connecting shaft 2. The pulley 13 is wrapped around the two pulleys 13. The rotating motor 11 drives the connecting shaft 2 to rotate via the transmission belt 12 and the pulley 13, so that the first cam 3 and the second cam 4 rotate synchronously.

[0032] It also includes an auxiliary component, which includes a frame 14, a support component and a transmission component. The support component includes a lifting plate 15 and a lifting auxiliary plate 16. The lifting plate 15 is arranged between the central lifting component and the tray. The lifting auxiliary plate 16 is rotatably connected to a rotating wheel 17 that contacts the circumferential surface of the first cam 3. The lifting auxiliary plate 16 is fixedly connected to the support plate 8. The lifting plate 15 is used to increase the supporting area of the tray, and the rotating wheel 17 is used to allow the first cam 3 to rotate more smoothly.

[0033] The support assembly also includes a guide structure, which includes a guide column 18 fixedly connected to the lifting auxiliary plate 16 and slidably connected to the frame 14. The end of the guide column 18 passes through the frame 14 and is provided with a spring. The guide column 18 guides the lifting plate 15, and the spring can cause the lifting plate 15 to recover as soon as possible to the state where the first cam 3 is not driving the lifting plate 15.

[0034] The transmission assembly includes a conveyor belt 19 disposed below the support plate 8 , and the conveyor belt 19 is used to transmit the trays to be stacked. The conveyor belt 19 transmits the trays to be stacked so that the trays can be automatically moved above the lifting plate 15 .

[0035] The frame 14 is provided with limit plates 20 located at the four corners of the lifting plate 15. The upper end of the limit plate 20 is a guard plate 21 inclined outward. The limit plate 20 is used to limit and block the stacked trays.

[0036] When the utility model is in use, the conveyor belt 19 moves forward to transfer the tray to be stacked to the top of the lifting plate 15, the rotating motor 11 is started to drive the connecting shaft 2 to rotate via the pulley 13 and the transmission belt 12, and the connecting shaft 2 synchronously drives the first cam 3 and the second cam 4 to rotate. Since there is an angle between the first cam 3 and the second cam 4, the first cam 3 first drives the lifting plate 15 to move upward via the rotating wheel 17 and makes the tray on the lifting plate 15 gradually approach the stacked tray above;

[0037] When the lifting plate 15 moves upward, the second cam 4 rotates and drives the driving plate 5 upward, and the driving plate 5 pulls the supporting plate 8 outward through the stepped first driving surface 6 and the second driving surface 7. When the supporting plate 8 is located at the second driving surface 7, the supporting plate 8 no longer supports the stacked trays. At the same time, the trays on the lifting plate 15 support the stacked trays, and the lifting plate 15 and the trays thereon continue to rise under the action of the first cam 3.

[0038] When the first cam 3 passes the farthest end, the second cam 4 no longer supports the drive plate 5. Under the action of the tension spring, the drive plate 5 moves downward and the support plate 8 moves inward. Under the action of the first cam 3 and the spring, the lifting plate 15 drives the tray thereon to move downward and makes the tray fall on the support plate 8. The support plate 8 supports the tray. After the first cam 3 rotates for one cycle, the rotating motor 11 stops rotating. When a new tray is transported to the top of the lifting plate 15 via the conveyor belt 19, the above actions are repeated to complete further stacking.

[0039] The utility model adopts a structure in which the first cam and the second cam are linked, so that the middle tray and the side support plates can move alternately. At the same time, under the action of the lifting plate and the support plate, the tray transmitted by the conveyor belt can be lifted upward in turn and supported by the support plate;

[0040] The utility model utilizes the setting of the first driving surface and the second driving surface to move the support plate when the driving plate is driven. When the second driving surface no longer limits the support plate, the support plate can be restored to its initial position under the action of the tension spring. At the same time, the arc transition surface between the first driving surface and the second driving surface can enable the support plate to move better.

Claims

1. A tray stacking device, characterized in that, The invention comprises a base (1) and a plurality of tray stacking mechanisms arranged in parallel on the base (1), wherein the tray stacking mechanisms comprise a central lifting assembly, the central lifting assembly being used to lift trays to be stacked; a side support and clearance assembly, the side support and clearance assembly being used to support the stacked trays and being movable from under the stacked trays, the side support and clearance assembly being connected to the central lifting assembly via a connecting shaft (2); and a driving assembly, the driving assembly being used to drive the connecting shaft (2) to rotate.

2. The tray stacking device according to claim 1, characterized in that: The central lifting assembly comprises a first cam (3) arranged on the connecting shaft (2), wherein the circumferential surface of the first cam (3) acts on a side of the tray close to the central lifting assembly.

3. The tray stacking device according to claim 2, wherein: The side support yielding assembly comprises a second cam (4) that rotates with the connecting shaft (2), and the angle between the second cam (4) and the side of the first cam (3) is (30) degrees.

4. The tray stacking device according to claim 3, wherein: The side support yielding assembly further comprises a driving plate (5) driven by the second cam (4); the driving plate (5) is provided with a first driving surface (6) and a second driving surface (7) in a stepped shape; the first driving surface (6) is provided with a supporting plate (8) slidably connected relative to the driving plate (5); and the driving plate (5) is provided with an elastic component (9) in a direction opposite to that of the second cam (4).

5. The tray stacking device according to claim 4, wherein: The first driving surface (6) and the second driving surface (7) are connected via an arc-shaped transition surface (10).

6. The tray stacking device according to claim 1, wherein: The driving assembly comprises a rotating motor (11), a transmission belt (12) and a pulley (13); the pulley (13) is arranged on an output shaft of the rotating motor (11) and a connecting shaft (2); and the pulley (13) is wrapped around the two pulleys (13).

7. The tray stacking device according to claim 1, characterized in that: The invention also includes an auxiliary component, which includes a frame (14), a support component and a transmission component. The support component includes a lifting plate (15) and a lifting auxiliary plate (16). The lifting plate (15) is arranged between the central lifting component and the tray. The lifting auxiliary plate (16) is rotatably connected to a rotating wheel (17) that contacts the circumferential surface of the first cam (3). The lifting auxiliary plate (16) is fixedly connected to the support plate (8).

8. The tray stacking device according to claim 7, wherein: The support assembly also includes a guide structure, which includes a guide column (18) fixedly connected to the lifting auxiliary plate (16) and slidably connected to the frame (14), and the end of the guide column (18) passes through the frame (14) and is provided with a spring.

9. The tray stacking device according to claim 7, wherein: The transmission component comprises a conveyor belt (19) arranged below the support plate (8), and the conveyor belt (19) is used to transmit trays to be stacked.

10. A tray stacking device according to claim 7, characterized in that: The frame (14) is provided with limit plates (20) located at the four corners of the lifting plate (15), and the upper end of the limit plate (20) is a guard plate (21) inclined outwards.

Images