Automatic tray unstacking device

The automatic separation and fixing of pallets is achieved through a mechanical transmission structure, which solves the problem of low efficiency in manual pallet dismantling, improves dismantling efficiency and standardization, reduces pallet damage costs, and ensures operational safety and equipment stability.

CN224466671UActive Publication Date: 2026-07-07SUZHOU HONGJIALI TITANIUM SYSTEM TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU HONGJIALI TITANIUM SYSTEM TECHNOLOGY CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Manual tray unpacking is inefficient, cannot guarantee standardized operations, and is difficult to meet the needs of continuous tray supply in production lines.

Method used

The system employs a mechanical transmission structure, including a drive unit that moves the insert plate to secure the tray, a chain drive structure that moves the moving plate, and a combination of a blocking block that engages with the tray and rollers that reduce friction, thereby achieving automatic separation and fixation of the tray.

Benefits of technology

It improves the efficiency of tray dismantling, ensures the standardization of each tray dismantling operation, reduces the cost of tray damage, ensures operational safety and equipment stability, and meets the continuous tray supply requirements of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a tray automatic unpacking equipment, and relates to the technical field of industrial production, which comprises a frame assembly, a rack plate for placing a tray is arranged on the inner bottom surface of the frame assembly, sliding rails are arranged on both sides of the rack plate in the frame assembly along the up-down direction, a moving plate is slidingly arranged on the sliding rails, a driving element one is arranged on the moving plate, and a plug-in hand plate for plugging the tray is fixedly arranged on the output end of the driving element one; a driving element two is arranged on the top surface of the frame assembly, a transmission rod is arranged on the output end of the driving element two through chain transmission, the transmission rod is meshed with a transmission chain, and the transmission chain is provided with a chain rod penetrating through the moving plate and fixedly arranged on the moving plate; the driving element one drives the plug-in hand plate to plug the tray, and the driving element two drives the moving plate to move through the chain transmission structure; manual operation is replaced by mechanical transmission, the tray is automatically separated, and the unpacking efficiency is greatly improved compared with manual unpacking.
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Description

Technical Field

[0001] This application relates to the field of industrial production technology, and in particular to an automatic pallet unloading device. Background Technology

[0002] In modern logistics warehousing and industrial automation production scenarios, pallets serve as the basic unit for carrying and transferring goods. Efficient pallet unpacking is a crucial link in achieving continuous material supply and improving production and distribution efficiency. With the accelerated intelligent transformation of the manufacturing industry, traditional manual pallet unpacking methods are no longer sufficient to meet the demands of large-scale, standardized production. There is an urgent need to explore more advanced unpacking technologies to adapt to the development trends of the industrial age.

[0003] Currently, manual pallet unpacking remains the mainstream operation mode in many small and medium-sized enterprises or scenarios with low automation requirements. Operators need to use forklifts to transport stacks of pallets to a designated area, and then use simple tools such as crowbars and hydraulic jacks to manually separate the stacked pallets one by one. This method relies on the operator's operating experience and physical strength. By observing the gaps between the pallets, tools are inserted and force is applied to separate them. During the process, the position of the pallets needs to be constantly adjusted to ensure safe dismantling.

[0004] Regarding the aforementioned technologies, the inventors believe that the efficiency of manual tray unpacking is limited by manpower, cannot guarantee standardized operations, and is difficult to meet the needs of continuous tray supply in production lines. Utility Model Content

[0005] The purpose of this application is to provide an automatic pallet unloading device to improve the efficiency of manual pallet unloading operations, which are limited by manpower, cannot guarantee standardized operations, and are difficult to meet the needs of continuous pallet supply in production lines.

[0006] This application provides an automatic pallet unloading device, which adopts the following technical solution:

[0007] An automatic pallet unloading device includes a frame assembly. A pallet-holding shelf is provided on the bottom surface of the frame assembly. Slide rails are arranged vertically on both sides of the shelf within the frame assembly. A movable plate is slidably mounted on the slide rails. A first driving component is provided on the movable plate. An insert plate for securing the pallet is fixedly mounted at the output end of the first driving component. A second driving component is provided on the top surface of the frame assembly. A transmission rod is driven by a chain at the output end of the second driving component. A transmission chain is engaged with the transmission rod. A chain rod passes through the movable plate and is fixed to the movable plate.

[0008] By adopting the above technical solution, the first driving component drives the insert plate to fix the tray, and the second driving component drives the moving plate to move through the chain transmission structure. By replacing manual operation with mechanical transmission, the automatic separation of the tray is realized. Compared with manual tray disassembly, the disassembly efficiency is greatly improved, and the precision of the mechanical structure ensures the standardization of each disassembly operation, meeting the continuous tray supply requirements of the production line.

[0009] Optionally, a drive component three is provided on the bottom surface of the frame assembly, and the output end of the drive component three is fixedly connected to the bottom surface of the frame to lift the frame.

[0010] By adopting the above technical solution, a driving component three is set on the bottom surface of the shelf to lift the shelf. During the dismantling process, the driving component three can lift the entire stack of pallets upward, making it easier to insert the hand plate for fixation, thus optimizing the dismantling process and improving the dismantling efficiency.

[0011] Optionally, the frame assembly is slidably provided with a plurality of synchronous lifting rods in the vertical direction, and the top surface of the synchronous lifting rods is fixedly connected to the bottom surface of the frame plate.

[0012] By adopting the above technical solutions, the synchronous lifting rod helps to ensure that the pallet remains stable during the lifting process, avoids the pallet from tipping over due to the tilt of the pallet, and ensures the safety of the unloading process. At the same time, the stable movement of the pallet also helps to improve the accuracy and standardization of unloading.

[0013] Optionally, the frame assembly has a fixing plate on one side of the shelf, the fixing plate has a fixing seat, and the fixing seat has a blocking block that can abut against the tray.

[0014] By adopting the above technical solution, the blocking block can abut against the pallet, improving the stability of pallet placement.

[0015] Optionally, the bottom surface of the fixed plate is provided with a driving component four, the output end of the driving component four passes through the fixed plate and the fixed seat, and the blocking block is rotatably connected to the fixed seat; the output end of the driving component four abuts against one end of the blocking block so that the blocking block is engaged with the tray.

[0016] By adopting the above technical solution, the driving component four cooperates with the rotating blocking block. The driving component four can push the blocking block to rotate and engage with the tray. Compared with simply relying on the blocking block to resist, the engaging method can more firmly fix the tray.

[0017] Optionally, the end of the blocking block that engages with the tray is rotatably equipped with several rollers.

[0018] By adopting the above technical solution, the rotational connection method of the rollers can effectively reduce the friction between the blocking block and the pallet, thereby reducing the costs incurred by enterprises due to pallet damage.

[0019] Optionally, a latch is rotatably provided on one side of the fixed base, and a number of fixing rods are provided on one side of the blocking block corresponding to the latch.

[0020] By adopting the above technical solution, the locking mechanism further strengthens the fixation of the pallet, reduces the impact of vibration or external force interference during equipment operation, and improves the safety and stability of equipment operation.

[0021] Optionally, the frame assembly has protective bars on both sides of the shelf plate along the vertical direction to prevent the tray from tipping over.

[0022] By adopting the above technical solution, the protective bar prevents the pallet from tipping over during the unpacking process, providing safety protection from the equipment structure, ensuring the safety of operators, and also avoiding equipment damage and production interruption caused by pallet tipping, thereby improving the overall reliability of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects of an automatic pallet unloading device:

[0024] 1. Drive component one drives the insert plate to secure the tray, and drive component two drives the moving plate through the chain transmission structure; by replacing manual operation with mechanical transmission, the automatic separation of the tray is realized. Compared with manual tray disassembly, the disassembly efficiency is greatly improved, and the precision of the mechanical structure ensures the standardization of each disassembly operation, meeting the continuous tray supply requirements of the production line.

[0025] 2. The driving component four cooperates with the rotating blocking block. The driving component four can push the blocking block to rotate and engage with the tray. Compared with simply relying on the blocking block to resist, the engaging method can fix the tray more firmly.

[0026] 3. The rotating connection of the rollers can effectively reduce friction between the blocking block and the pallet, reducing the costs incurred by enterprises due to pallet damage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the automatic pallet unloading equipment;

[0028] Figure 2 yes Figure 1 Enlarged schematic diagram of the structure at point A;

[0029] Figure 3 yes Figure 1 Enlarged schematic diagram of the structure at point B.

[0030] In the diagram, 1. Frame assembly; 2. Shelf plate; 3. Slide rail; 31. Moving plate; 32. Drive component one; 33. Handrail plate; 4. Drive component two; 41. Transmission rod; 42. Transmission chain; 421. Chain rod; 43. Transmission gear; 5. Drive component three; 51. Synchronous lifting rod; 6. Fixed plate; 61. Fixed seat; 611. Lock; 62. Blocking block; 621. Roller; 622. Fixed rod; 63. Drive component four; 7. Protective rod. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0032] An automatic pallet unloading device, referring to Figure 1, includes a frame assembly 1, which consists of a frame and a chain drive belt (not shown) for conveying pallets. The inner bottom surface of the frame assembly 1 is provided with a pallet-holding plate 2. A drive component 3 5 is bolted to the bottom surface of the frame assembly 1 at the location of the frame assembly 1 on the frame plate 2. The drive component 3 5 is preferably an electric push rod, the output end of which is bolted to the bottom surface of the frame plate 2, thereby enabling the lifting operation of the frame plate 2. Simultaneously, a plurality of synchronous lifting rods 51 are slidably arranged in the frame assembly 1 along the vertical direction via linear bearings. In this embodiment, four are preferred. The top surfaces of these synchronous lifting rods 51 are also bolted to the bottom surface of the frame plate 2 to ensure the stability of the frame plate 2 during the lifting process.

[0033] Refer to Figure 1. Figure 2 The frame assembly 1 has slide rails 3 arranged vertically on both sides of the frame plate 2. The slide rails 3 are fixed to the frame assembly 1 by welding. A movable plate 31 is slidably arranged on the slide rails 3. A drive component 32 is installed on the movable plate 31. The drive component 32 can be a cylinder. Its output end is fixedly provided with a hand plate 33 for inserting and fixing the tray. The shape of the hand plate 33 is adapted to the slot at the bottom of the tray, so that it can be firmly inserted into the tray to achieve fixation.

[0034] Refer to Figure 1. Figure 2 A second driving component 4 is installed on the top surface of the frame assembly 1. The second driving component 4 is a motor, and its output end is connected to the transmission rod 41 through a chain transmission device. A transmission chain 42 is meshed on the transmission rod 41. A transmission gear 43 is correspondingly provided on the bottom surface of the inner side of the frame assembly 1. A chain rod 421 is fixedly provided on the transmission chain 42 by welding. The chain rod 421 passes through the moving plate 31 and is fixed to the moving plate 31 by welding, thereby realizing that the second driving component 4 drives the moving plate 31 to move up and down along the slide rail 3.

[0035] Refer to Figure 1. Figure 3The frame assembly 1 has guardrails 7 installed on both sides of the shelf plate 2 along the vertical direction. The guardrails 7 are fixed to the frame assembly 1 by welding, and their function is to prevent the pallet from tipping over, ensuring the safety of the unloading process. A fixing plate 6 is installed on one side of the frame assembly 1, specifically on the side of the chain conveyor belt in the direction of travel. The fixing plate 6 is fixed to the frame assembly 1 by bolts. A fixing seat 61 is installed on the fixing plate 6, and the fixing seat 61 is connected to the fixing plate 6 by welding. The fixing seat 61 is provided with a blocking block 62 that can abut against the pallet.

[0036] Referring to Figure 3, a drive component 63 is mounted on the bottom surface of the fixed plate 6. The drive component 63 can also be an electric push rod, with its output end passing through the fixed plate 6 and the fixed base 61. The blocking block 62 is rotatably connected to the fixed base 61 via a pin. The output end of the drive component 63 abuts against one end of the blocking block 62, and the extension and retraction of the drive component 63 causes the blocking block 62 to engage with the tray. Several rollers 621 are rotatably mounted on the end of the blocking block 62 that engages with the tray via bearings. In this embodiment, three rollers are preferred. The rollers 621 reduce friction between the blocking block 62 and the tray. A latch 611 is rotatably mounted on one side of the fixed base 61 via a pin. Several fixing rods 622 are welded to one side of the blocking block 62 corresponding to the latch 611. The latch 611 and the fixing rods 622 cooperate to lock the blocking block 62 after it engages with the tray.

[0037] The implementation principle of this application embodiment is as follows:

[0038] In practical use, the entire stack of pallets is placed on the shelf 2. The drive unit 4 63 drives the blocking block 62 to fasten and fix the pallets. After the chain drive belt is ready, the drive unit 4 63 drives the blocking block 62 to release the pallets. The drive unit 1 32 causes the insert plate 33 welded to the output end to be inserted into the second-to-last pallet slot for fixation. The drive unit 2 4 drives the transmission rod 41 to rotate via the chain drive. Through the meshing transmission chain 42, the chain rod 421 drives the moving plate 31 to move upward along the slide rail 3, separating the pallets. The separated pallets are transported out of the frame assembly 1 by the chain drive belt. The drive unit 2 4 drives the moving plate 31 to move downward, placing the pallets on the shelf 2 and inserting them into the second-to-last pallet slot for fixation. The operation is repeated to achieve automated continuous pallet unloading.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic pallet unloading device, comprising a frame assembly (1), characterized in that: The frame assembly (1) has a tray shelf (2) on its inner bottom surface. The frame assembly (1) has slide rails (3) on both sides of the tray shelf (2) along the vertical direction. The slide rails (3) have a movable plate (31) slidably mounted on them. The movable plate (31) has a drive component (32). The output end of the drive component (32) has a fixed insert plate (33) for inserting the tray. The frame assembly (1) has a drive component (4) on its top surface. The output end of the drive component (4) has a transmission rod (41) driven by a chain. The transmission rod (41) is engaged with a transmission chain (42). The transmission chain (42) has a chain rod (421) that passes through the movable plate (31) and is fixed to the movable plate (31).

2. The automatic pallet unloading device according to claim 1, characterized in that: The frame assembly (1) is provided with a driving component three (5) on the bottom surface of the frame plate (2). The output end of the driving component three (5) is fixedly connected to the bottom surface of the frame plate (2) to lift the frame plate (2).

3. The automatic pallet unloading device according to claim 2, characterized in that: The frame assembly (1) is provided with a plurality of synchronous lifting rods (51) that slide in the vertical direction, and the top surface of the synchronous lifting rods (51) is fixedly connected to the bottom surface of the frame plate (2).

4. The automatic pallet unloading device according to claim 1, characterized in that: The frame assembly (1) is provided with a fixing plate (6) on one side of the shelf plate (2), the fixing plate (6) is provided with a fixing seat (61), and the fixing seat (61) is provided with a blocking block (62) that can abut against the tray.

5. The automatic pallet unloading device according to claim 4, characterized in that: The bottom surface of the fixed plate (6) is provided with a driving component four (63), the output end of the driving component four (63) passes through the fixed plate (6) and the fixed seat (61), and the blocking block (62) is rotatably connected to the fixed seat (61); the output end of the driving component four (63) abuts against one end of the blocking block (62) so that the blocking block (62) is engaged with the tray.

6. The automatic pallet unloading device according to claim 5, characterized in that: The end of the blocking block (62) that engages with the tray is provided with several rollers (621).

7. The automatic pallet unloading device according to claim 6, characterized in that: The fixed base (61) is rotatably provided with a latch (611) on one side, and the blocking block (62) is provided with a plurality of fixing rods (622) on one side corresponding to the latch (611).

8. The automatic pallet unloading device according to claim 1, characterized in that: The frame assembly (1) has protective bars (7) on both sides of the frame plate (2) along the vertical direction to prevent the tray from tipping over.