Tray layering anti-falling device

Abstract

This invention discloses a tray layering and anti-fall device, relating to the field of fall prevention technology. It includes a limiting component, a detection component on the hopper for detecting the presence of trays, a support finger assembly installed on the side of the hopper to support the trays inside, a top plate assembly installed on top of the support finger assembly to separate or stack the trays stacked inside the hopper, and a pallet installed at the bottom of the hopper via a lifting component that drives the pallet to move up and down, allowing the pallet and support finger assembly to cooperate in separating or stacking the trays inside the hopper. This invention utilizes the combined use of the limiting component, support finger assembly, top plate assembly, tray components, and lifting component. Under the action of the lifting component, the pallet can separate trays adjacent to each other, thus ensuring the safety of trays from falling. When trays are returned to the hopper, positioning components on the pallet ensure precise positioning of the trays on the pallet, enabling accurate stacking of trays during stacking.

Description

Technical Field

[0001] This invention relates to the field of fall protection technology, and in particular to a layered fall protection device for a tray. Background Technology

[0002] In smart manufacturing scenarios such as electronic component packaging, semiconductor chip testing, and precision assembly of 3C products, trays, as standardized containers for carrying small precision parts, are widely used in warehousing, automated transfer, and inter-process flow. These scenarios have extremely high requirements for the accuracy of tray placement and stacking stability. Once a tray falls or is stacked skewed, it will not only directly lead to damage to parts and an increase in the defect rate, but may also cause production line shutdowns and logistics scheduling chaos, resulting in significant economic losses and efficiency losses for enterprises.

[0003] The robotic arm picks up trays one by one from the top of the hopper, tests them, and then puts them back into the stack from top to bottom. In this mode, when the stack of trays is high, after the upper trays are removed, the lower trays, without the constraint of the top, are easily affected by factors such as robotic arm vibration and hopper gaps, causing their center of gravity to shift. During the return process, the upper trays are only aligned with the lower ones by visual or mechanical coarse positioning. After long-term stacking, the accumulated errors can easily lead to stacking skewing, misalignment between layers, and in severe cases, the entire stack of trays may collapse. Summary of the Invention

[0004] The purpose of this invention is to provide a tray layering anti-fall device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tray layered anti-fall device, comprising:

[0006] The limiting components are fixedly installed on the test frame. The four limiting components form a hopper that restricts and limits the tray. The hopper is equipped with a detection component for detecting whether a tray is present.

[0007] A finger support assembly is installed on the side of the hopper and is used to lift and limit the tray inside the hopper.

[0008] Top tray assembly, which is installed on top of the finger support assembly, for separating and stacking trays inside the hopper;

[0009] The pallet and lifting assembly are provided. The pallet is installed at the bottom of the hopper via the lifting assembly. The lifting assembly drives the pallet to move up and down, so that the pallet cooperates with the support assembly to separate or stack the trays inside the hopper.

[0010] Preferably, the finger support assembly includes:

[0011] The first cylinder is fixedly mounted on the test frame;

[0012] A first connector is throttledly connected to the output end of a first cylinder, and a support member for lifting and limiting the tray is fixedly connected to one side of the first connector.

[0013] Preferably, the top plate assembly includes:

[0014] A fixed base is fixedly installed on the top of the first cylinder, and a second cylinder is fixedly installed on the top of the fixed base;

[0015] The second connector is driven to the output end of the second cylinder. A first pusher is fixedly connected to one side of the second connector. The second cylinder drives the first pusher to move toward the center of the hopper through the second connector to align and calibrate the tray.

[0016] Preferably, a first protrusion is fixedly connected to the side of the top of the tray, and the top of the first protrusion facing the center of the tray is provided with an inclined chamfer. A second protrusion is fixedly connected to the side of the top of the tray, and the second protrusion corresponds to the supporting member. The line connecting the two first protrusions and the line connecting the two second protrusions are arranged perpendicularly and alternately. A positioning member is provided on the tray to correct and limit the position of the tray on the tray.

[0017] Preferably, the positioning element includes:

[0018] The third cylinder is fixedly installed on the bottom of the tray;

[0019] The second pusher is connected to the output end of the third cylinder, and one of the second protrusions has a mounting notch that matches the second pusher.

[0020] Preferably, the lifting assembly includes:

[0021] A servo screw unit is mounted on the testing frame and is located at the bottom of the tray;

[0022] A support base is fixedly installed on the bottom of the tray, and the output end of the top of the servo screw unit is connected to the support base for transmission.

[0023] Preferably, a guide rail is fixedly connected to one side of the servo screw unit, and a vertical guide groove is provided on one side of the support base, with the guide rail slidably engaged inside the guide groove.

[0024] Preferably, a third sensor is fixedly installed on the side of the second protrusion, and the third sensor is used to detect whether there are stacked storage trays on the tray.

[0025] Preferably, the detection component includes a first sensor and a fixing component. The first sensor is fixedly installed on the side of the limiting component by the fixing component. The first sensor is used to detect whether there is a tray at the bottom of the hopper.

[0026] Preferably, the detection component further includes a second sensor, which is fixedly installed on the side of the limiting component by a fixing component. The second sensor is located on top of the first sensor and is used to detect whether there is a tray on the top of the hopper.

[0027] The technical effects and advantages of this invention are as follows:

[0028] This invention utilizes the combined use of limiting components, support components, top plate components, tray components, and lifting components. Under the action of the lifting components, the pallet can be separated next to the tray, thus ensuring the safety of the tray from falling. When the tray is returned to the hopper, the pallet has positioning components that can accurately position the tray on the pallet, thus ensuring accurate stacking of the trays during stacking. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of the servo lead screw unit of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of the limiting component of the present invention;

[0033] Figure 4 This is a schematic diagram of the overall structure of the first cylinder of the present invention;

[0034] Figure 5 This is a schematic diagram of the overall structure of the second cylinder of the present invention;

[0035] Figure 6 This is a schematic diagram of the overall structure of the tray of the present invention.

[0036] In the attached diagram: 1. Limiting component; 11. First sensor; 12. Fixing component; 13. Second sensor; 2. Finger support assembly; 21. First cylinder; 22. First connecting component; 23. Lifting component; 3. Top plate assembly; 31. Fixing seat; 32. Second cylinder; 33. Second connecting component; 34. First pushing component; 4. Tray; 41. First protrusion; 42. Second protrusion; 5. Lifting assembly; 51. Servo screw unit; 52. Support seat; 53. Third cylinder; 54. Second pushing component; 55. Mounting notch; 56. Third sensor. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides, for example Figures 1-6 The tray layered anti-fall device shown includes a limiting component 1, a support finger assembly 2, a top plate assembly 3, a tray 4, and a lifting assembly 5. The limiting component 1 is fixedly installed on the test frame, and the four limiting components 1 form a hopper that restrains and limits the tray. The hopper is equipped with a detection component for detecting whether a tray is stored, so that the detection component can provide feedback on the tray stored in the hopper. The support finger assembly 2 is installed on the side of the hopper, and the two support finger assemblies 2 are used to lift the tray inside the hopper, thereby determining whether the tray inside the hopper is a tray. Whether loading or unloading is performed, the top plate assembly 3 is installed on top of the support finger assembly 2 to separate and stack the trays inside the hopper, and to calibrate the stacking, thereby ensuring the accuracy of the tray stacking inside the hopper. The pallet 4 is installed at the bottom of the hopper through the lifting assembly 5. The lifting assembly 5 drives the pallet 4 to move up and down, so that the pallet 4 and the support finger assembly 2 cooperate to separate or stack the trays inside the hopper, so that the pallet 4 can take the trays one by one from bottom to top. After the test is completed, the trays are put back into the hopper one by one from bottom to top.

[0039] Furthermore, the support assembly 2 includes a first cylinder 21 and a first connector 22. The first cylinder 21 is fixedly mounted on the test frame, and the first connector 22 is drivenly connected to the output end of the first cylinder 21. A support member 23 for lifting and limiting the tray is fixedly connected to one side of the first connector 22. Thus, the first cylinder 21 drives the support member 23 to move towards the center of the hopper, so that the support member 23 is inserted into the bottom of the tray, which can limit the tray. The end of the support member 23 is pointed. When the tray 4 supports the tray inside the hopper, the support member 23 can be inserted into the bottom of the tray above the tray supported by the top of the tray 4, thereby realizing the tray of the hopper picking up material from bottom to top. The support member 23 is U-shaped, so when the tray 4 rises, the second protrusion 42 on the side of the tray 4 can be inserted into the interior of the support member 23.

[0040] Furthermore, the top plate assembly 3 includes a fixed base 31 and a second connecting member 33. The fixed base 31 is fixedly installed on the top of the first cylinder 21, and the second cylinder 32 is fixedly installed on the top of the fixed base 31. The second connecting member 33 is throttle-connected to the output end of the second cylinder 32. A first pushing member 34 is fixedly connected to one side of the second connecting member 33. The first pushing member 34 has the same shape as the lifting member 23, but the end of the first pushing member 34 is flat, so that the end of the first pushing member 34 can squeeze the tray to perform tray alignment. The second cylinder 32 drives the first pushing member 34 to move towards the center of the hopper through the second connecting member 33 to align and calibrate the tray support. Both the second connecting member 33 and the first connecting member 22 are L-shaped and are slidably connected to the sides of the corresponding second cylinder 32 and first cylinder 21 to ensure the stability of their movement.

[0041] Furthermore, a first protrusion 41 is fixedly connected to the top side of the tray 4. The top of the first protrusion 41 facing the center of the tray 4 has an inclined chamfer. A second protrusion 42 is fixedly connected to the top side of the tray 4. The second protrusion 42 corresponds to the supporting member 23. The line connecting the two first protrusions 41 and the line connecting the two second protrusions 42 are arranged perpendicularly and alternately. Figure 6 As shown, a positioning component is provided on the tray 4 to correct and limit the trays on the tray 4. A third sensor 56 is fixedly installed on the side of the second protrusion 42. The third sensor 56 is used to detect whether trays are stacked on the tray 4, that is, to determine whether there are two or more trays on the tray 4, thereby determining that the tray 4 has taken too many trays. The tray 4 is also equipped with a sensor to sense and detect whether there are trays on the tray 4.

[0042] Furthermore, the positioning component includes a third cylinder 53 and a second pusher 54. The third cylinder 53 is fixedly installed on the bottom of the tray 4, and the second pusher 54 is drivenly connected to the output end of the third cylinder 53. One of the second protrusions 42 has an installation notch 55 that matches the second pusher 54, so that under the action of the third cylinder 53, the second pusher 54 can correct and limit the tray on the tray 4.

[0043] Specifically, the lifting assembly 5 includes a servo screw unit 51 and a support base 52. The servo screw unit 51 is mounted on the testing frame and located at the bottom of the tray 4. The support base 52 is fixedly mounted on the bottom of the tray 4. The output end of the top of the servo screw unit 51 is connected to the support base 52 for transmission. The servo screw unit 51 consists of a servo motor, a screw seat, and a screw. The top of the screw is rotatably connected to the support base 52. The servo motor can drive the screw to rotate synchronously with a sleeve. The sleeve can only rotate inside the screw seat and cannot move up or down. The screw seat has a threaded inner cavity connected to the screw. When the screw rotates relative to the screw seat, it can move up or down. This is existing technology and will not be described in detail here. A guide rail is fixedly connected to one side of the servo screw unit 51. A vertical guide groove is opened on one side of the support base 52. The guide rail is slidably engaged inside the guide groove, thereby ensuring the stability of the vertical lifting movement of the support base 52 under the action of the servo screw unit 51.

[0044] Furthermore, the detection component includes a first sensor 11 and a fixing member 12. The first sensor 11 is fixedly installed on the side of the limiting member 1 via the fixing member 12. The first sensor 11 is used to detect whether there are trays at the bottom of the hopper. That is, when there are trays at the bottom of the hopper, the trays can block the light signal transmission of the two first sensors 11, thus indicating that there are still trays at the bottom of the hopper. The detection component also includes a second sensor 13. The second sensor 13 is fixedly installed on the side of the limiting member 1 via the fixing member 12. The second sensor 13 is located on top of the first sensor 11. The second sensor 13 is used to detect whether there are trays at the top of the hopper. When the trays stacked inside the hopper block the light signal transmission of the two second sensors 13, it can indicate that there are trays at the top of the hopper, that is, a specified number of trays are stored inside the hopper.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A layered tray anti-fall device, characterized in that: include: The limiting component (1) is fixedly installed on the test frame. The four limiting components (1) form a hopper for binding and limiting the tray. The hopper is equipped with a detection component for detecting whether a tray is present. The finger support assembly (2) is symmetrically installed on the side of the hopper and is used to support the tray inside the hopper. Top tray assembly (3), which is installed on top of the support finger assembly (2) to separate and stack the trays stacked inside the silo; The pallet (4) and the lifting assembly (5) are installed at the bottom of the silo via the lifting assembly (5). The lifting assembly (5) drives the pallet (4) to move up and down, so that the pallet (4) cooperates with the support assembly (2) to separate and stack the trays inside the silo.

2. The tray layered anti-fall device according to claim 1, characterized in that: The finger support assembly (2) includes: The first cylinder (21) is fixedly mounted on the test frame; The first connector (22) is connected to the output end of the first cylinder (21), and a lifting member (23) for lifting and limiting the tray is fixedly connected to one side of the first connector (22).

3. The tray layered anti-fall device according to claim 2, characterized in that: The top plate assembly (3) includes: A fixed seat (31) is fixedly installed on the top of the first cylinder (21), and a second cylinder (32) is fixedly installed on the top of the fixed seat (31). The second connector (33) is connected to the output end of the second cylinder (32). A first pusher (34) is fixedly connected to one side of the second connector (33). The second cylinder (32) drives the first pusher (34) to move toward the center of the hopper through the second connector (33) to calibrate the tray.

4. The tray layered anti-fall device according to claim 3, characterized in that: A first protrusion (41) is fixedly connected to the top side of the tray (4). The first protrusion (41) has an inclined chamfer on the top side facing the center of the tray (4). A second protrusion (42) is fixedly connected to the top side of the tray (4). The second protrusion (42) corresponds to the support member (23). The line connecting the two first protrusions (41) and the line connecting the two second protrusions (42) are perpendicularly intersecting. A positioning member is provided on the tray (4) to correct and limit the tray on the tray (4).

5. A tray layered anti-fall device according to claim 4, characterized in that: The positioning element includes: The third cylinder (53) is fixedly installed on the bottom of the tray (4); The second pusher (54) is connected to the output end of the third cylinder (53), and one of the second protrusions (42) has an installation notch (55) that matches the second pusher (54).

6. A tray layered anti-fall device according to claim 5, characterized in that: The lifting assembly (5) includes: Servo screw unit (51), the servo screw unit (51) is mounted on the detection frame, the servo screw unit (51) is located at the bottom of the tray (4); Support base (52) is fixedly installed on the bottom of tray (4), and the output end of the top of the servo screw unit (51) is connected to the support base (52) for transmission.

7. A tray layered anti-fall device according to claim 6, characterized in that: A guide rail is fixedly connected to one side of the servo screw unit (51), and a vertical guide groove is provided on one side of the support base (52). The guide rail is slidably engaged inside the guide groove.

8. A tray layered anti-fall device according to claim 7, characterized in that: A third sensor (56) is fixedly installed on the side of the second protrusion (42), and the third sensor (56) is used to detect whether there are stacked storage trays on the tray (4).

9. A tray layered anti-fall device according to claim 1, characterized in that: The detection component includes a first sensor (11) and a fixing component (12). The first sensor (11) is fixedly installed on the side of the limiting component (1) by the fixing component (12). The first sensor (11) is used to detect whether there is a tray at the bottom of the hopper.

10. A tray layered anti-fall device according to claim 9, characterized in that: The detection component also includes a second sensor (13), which is fixedly installed on the side of the limiting component (1) by a fastener (12). The second sensor (13) is located on top of the first sensor (11) and is used to detect whether there is a tray on the top of the hopper.

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