Stacking and transporting device and method

Abstract

This invention discloses a stacked tray transfer device, including a tray conveying mechanism, a clamping and transferring mechanism, a stacked tray lifting mechanism, and a stacked tray holding mechanism. The stacked tray holding mechanism is located above the stacked tray lifting mechanism, and the tray conveying mechanism is located below the stacked tray lifting mechanism. The clamping and transferring mechanism is used to clamp and transfer trays one by one to the area below the stacked tray lifting mechanism. The stacked tray lifting mechanism is used to lift the trays one by one from the clamping and transferring mechanism to the stacked tray holding mechanism to form a tray stack, and then lower the tray stack onto the tray conveying mechanism. A stacked tray transfer method is also disclosed. This stacked tray transfer device and method have advantages such as high operational continuity, high production efficiency, easy and accurate tray feeding, and avoidance of misalignment during tray lifting.

Description

Technical Field

[0001] This invention relates to the field of tray handling equipment technology, and in particular to a stacked tray transfer device and method. Background Technology

[0002] During the assembly of injection pens, the pen caps and bodies are initially placed in slotted trays. A full tray is input, and an empty tray is output after either the cap or body is removed. Currently, the stacking, sorting, and transfer of empty trays are typically done manually, which is time-consuming, labor-intensive, and results in poor work continuity.

[0003] Chinese patent document CN219278868U discloses a tray feeding and stacking mechanism. The stacking process of this mechanism is as follows: an external robotic arm moves an empty tray in, a motor drives the conveyor belt to move inward, the conveyor belt stops moving after it reaches the end, a first lifting device and a second lifting device extend simultaneously, a chuck device drives the tray pusher to extend and clamp the tray, the first lifting device and the second lifting device retract simultaneously, the above tray collection process is repeated until the tray is full, and all empty trays are manually removed.

[0004] The applicant discovered some defects in the technical solution:

[0005] 1) This mechanism uses an external robotic arm and empty pallets for loading. After the pallets are transported to their designated positions by a conveyor belt, a lifting device raises them for stacking. Once stacking is complete, manual unloading is performed. Using an external robotic arm and conveyor belt for loading results in low positioning accuracy. If the pallets are not accurately positioned during loading and transport, they may become misaligned during lifting, preventing stacking and potentially damaging the equipment. Manual unloading requires waiting for manual unloading to complete before production can resume, leading to poor work continuity and low production efficiency.

[0006] 2) After the chuck device locks the pallet, the lifting device lifts the pallet. The pallet on the next layer will have a rigid collision with the pallet on the previous layer, which may damage the pallet and result in poor stacking stability. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a stacking and transferring device and method with high working continuity, high production efficiency, easy and accurate feeding of the discs, and avoidance of misalignment when the discs are lifted.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A stacked tray transfer device includes a tray conveying mechanism, a clamping and transferring mechanism, a stacking tray lifting mechanism, and a stacking tray holding mechanism. The stacking tray holding mechanism is located above the stacking tray lifting mechanism, and the tray conveying mechanism is located below the stacking tray lifting mechanism. The clamping and transferring mechanism is used to clamp and transfer trays one by one to the area below the stacking tray holding mechanism. The stacking tray lifting mechanism is used to lift trays one by one from the clamping and transferring mechanism to the stacking tray holding mechanism to form a stack of trays, and then lower the stack of trays onto the tray conveying mechanism.

[0010] As a further improvement to the above technical solution:

[0011] The clamping and transfer mechanism includes a translation component and a disk positioning and clamping component. The disk positioning and clamping component is disposed on the translation component and is used to position and clamp the disk.

[0012] The disc positioning and clamping assembly includes a transfer frame, a first clamping block, a second clamping block, and a clamping and placing drive. The transfer frame is mounted on the translation assembly. The first clamping block and the second clamping block are respectively located on the front and rear sides of the transfer frame. The clamping and placing drive is used to drive the first clamping block and the second clamping block to move closer to each other and further away from each other to clamp and place the disc.

[0013] The disc conveying mechanism includes a pair of parallel conveyor belts, with a clearance between the conveyor belts to allow the clamping and transfer mechanism to pass.

[0014] The stacking and lifting mechanism includes two lifting components respectively located on both sides of the stacking and lifting mechanism.

[0015] The stacking and lifting mechanism also includes a guide component for guiding the lifting and lowering of the trays and a limiting component for limiting the trays.

[0016] The stacking plate holding mechanism includes a pair of retainers and a clamping drive for driving the pair of retainers to move closer and further apart.

[0017] The retainer is provided with a clearance opening for the passage of the vertical stiffening plates on the outer wall of the disc.

[0018] The conveying directions of the disc conveying mechanism and the clamping and transferring mechanism are the same.

[0019] A method for transferring stacked pallets, using the aforementioned stacked pallet transferring device, includes the following steps:

[0020] The clamping and transferring mechanism clamps and transfers the trays one by one to the bottom of the tray holding mechanism;

[0021] The stacking lifting mechanism lifts the trays on the clamping and transferring mechanism one by one to the stacking holding mechanism to form a stack of trays, and then lowers the stack of trays onto the tray conveying mechanism.

[0022] The disc conveyor mechanism transports the disc stacks for unloading.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] The pallet transfer device of the present invention, because the pallet conveying mechanism is located below the pallet lifting mechanism, allows the pallet lifting mechanism to simply lower the pallet stack after stacking, enabling the pallet conveying mechanism to discharge the pallets immediately without waiting for the next round of pallet transfer. This results in high work continuity and high production efficiency. Furthermore, the clamping and transfer mechanism uses a clamping and transferring mechanism to clamp and transfer the pallets one by one to the area below the pallet holding mechanism for feeding. Compared to the external robotic arms and conveyor belts used in existing technologies, this facilitates pallet positioning and transfer, and accurate alignment with the upper pallet lifting mechanism. This ensures accurate pallet feeding, avoids misalignment during pallet lifting, and achieves smooth pallet stacking.

[0025] The pallet transfer method of this invention, because the pallet conveying mechanism is located below the pallet lifting mechanism, allows the pallet lifting mechanism to simply lower the pallet stack after stacking, enabling the pallet conveying mechanism to discharge the pallets immediately. This eliminates the need for waiting and allows for the next round of pallet transfer, resulting in high work continuity and production efficiency. Furthermore, the clamping and transfer mechanism uses a clamping and transferring mechanism to feed the pallets one by one to the area below the pallet holding mechanism. Compared to existing technologies that use external robotic arms and conveyor belts for feeding, this method facilitates pallet positioning and transfer, and ensures accurate alignment with the upper pallet lifting mechanism. This ensures accurate pallet feeding, avoids misalignment during pallet lifting, and achieves smooth pallet stacking. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the stacked tray transfer device of the present invention.

[0027] Figure 2 This is a schematic diagram of the stacked pallet transfer device of the present invention from another angle.

[0028] Figure 3 This is a schematic diagram of the clamping and transferring mechanism in the stacked tray transfer device of the present invention.

[0029] Figure 4 This is a side view of the clamping and transferring mechanism in the stacked tray transfer device of the present invention.

[0030] Figure 5 This is a schematic diagram of the stacking lifting mechanism and the stacking holding mechanism in the stacking transfer device of the present invention.

[0031] Figure 6 This is a schematic diagram of the stacking lifting mechanism and stacking holding mechanism in the stacking transfer device of the present invention from another angle.

[0032] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0033] The labels in the diagram represent: 1. Disc body; 11. Vertical stiffener; 12. Horizontal stiffener; 2. Disc body conveying mechanism; 21. Conveyor belt; 22. Clearance interval; 3. Clamping and transferring mechanism; 31. Translation component; 32. Disc body positioning and clamping component; 321. Transfer frame; 322. First clamping block; 323. Second clamping block; 324. Clamping and placing drive component; 4. Stacking tray lifting mechanism; 41. Lifting component; 42. Guide component; 43. Limiting component; 5. Stacking tray holding mechanism; 51. Holding component; 511. Clearance opening; 52. Clamping drive component. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Example 1:

[0039] like Figures 1 to 7As shown, the stacked tray transfer device of this embodiment includes a tray conveying mechanism 2, a clamping and transferring mechanism 3, a stacked tray lifting mechanism 4, and a stacked tray holding mechanism 5. The stacked tray holding mechanism 5 is located above the stacked tray lifting mechanism 4, and the tray conveying mechanism 2 is located below the stacked tray lifting mechanism 4. The clamping and transferring mechanism 3 is used to clamp and transfer the trays 1 one by one to the bottom of the stacked tray holding mechanism 5. The stacked tray lifting mechanism 4 is used to lift the trays 1 on the clamping and transferring mechanism 3 one by one to the stacked tray holding mechanism 5 to form a tray stack, and then lower the tray stack onto the tray conveying mechanism 2.

[0040] The operation process of this stacking tray transfer device is as follows: First, the first tray 1 is placed on the tray positioning and clamping assembly 32. The tray positioning and clamping assembly 32 positions and clamps the first tray 1. The translation assembly 31 moves the tray positioning and clamping assembly 32 until it aligns with the stacking tray lifting mechanism 4. Second, the stacking tray lifting mechanism 4 rises, lifting and supporting the first tray 1 on the tray positioning and clamping assembly 32. The translation assembly 31 moves the tray positioning and clamping assembly 32 back to its original position. The stacking tray holding mechanism 5 clamps the first tray 1 and keeps it in the supported state. The stacking tray lifting mechanism 4 descends back to its original position. Third, the next tray 1 is placed on the tray positioning and clamping assembly 32. The tray positioning and clamping assembly 32 positions and clamps the next tray 1. The translation assembly 31 moves the tray positioning and clamping assembly 32 back to its original position. Component 31 drives the disc positioning and clamping component 32 to move horizontally until it aligns with the stacking lifting mechanism 4; in the fourth step, the stacking lifting mechanism 4 rises to lift and support the next disc 1 on the disc positioning and clamping component 32, and the horizontal movement component 31 drives the disc positioning and clamping component 32 to move horizontally back to its original position, so that the next disc 1 is stacked with the bottom disc 1 on the stacking holding mechanism 5. The stacking holding mechanism 5 re-clamps the new bottom disc 1 and keeps the disc 1 in a lifted state. The stacking lifting mechanism 4 descends and returns to its original position; in the fifth step, steps three to four are repeated until all discs 1 are stacked. The stacking holding mechanism 5 releases the clamp, and the stacking lifting mechanism 4 descends to lower the stacked discs 1 onto the disc conveying mechanism 2. The disc conveying mechanism 2 discharges the stacked discs.

[0041] In this embodiment of the pallet transfer device, during pallet transfer, the clamping and conveying mechanism 3 clamps and conveys the pallets 1 one by one to the bottom of the pallet holding mechanism 5; the pallet lifting mechanism 4 lifts the pallets 1 on the clamping and conveying mechanism 3 one by one to the pallet holding mechanism 5 to form a pallet stack, and then lowers the pallet stack onto the pallet conveying mechanism 2; the pallet conveying mechanism 2 conveys the pallet stack for discharge. Because the pallet conveying mechanism 2 is located below the pallet lifting mechanism 4, after pallet stacking is completed, the pallet lifting mechanism 4 only needs to lower the pallet stack, and the pallet conveying mechanism 2 can discharge the pallet immediately without waiting for the next round of pallet transfer, resulting in high work continuity and high production efficiency. Furthermore, the clamping and transfer mechanism 3 is used to clamp and transfer the trays 1 one by one to the bottom of the stacking tray holding mechanism 5 to achieve feeding. Compared with the existing technology of external robotic arms and conveyor belts for feeding, it is easier to position and transfer the trays 1 and accurately align them with the upper stacking tray lifting mechanism 4, so that the trays 1 are accurately fed and misaligned when the trays 1 are lifted, thus achieving smooth stacking.

[0042] Furthermore, such as Figure 2 and Figure 3 As shown, in this embodiment, the clamping and transfer mechanism 3 includes a translation component 31 and a disc positioning and clamping component 32. The disc positioning and clamping component 32 is mounted on the translation component 31 and is used to position and clamp the disc 1. During loading, after the disc 1 is positioned by the disc positioning and clamping component 32, it is transferred by the translation component 31 to the stacking and lifting mechanism 4 for stacking, realizing the positioning and transfer of the disc 1 and accurate alignment with the upper stacking and lifting mechanism 4, making it less prone to misalignment during stacking. The translation component 31 is driven by an electric cylinder, which moves precisely and performs the first positioning of the disc 1. The clamping component 32 then performs the second positioning of the disc 1, resulting in high positioning accuracy and good stability.

[0043] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, the disc positioning and clamping assembly 32 includes a transfer frame 321, a first clamping block 322, a second clamping block 323, and a clamping and placing drive 324. The transfer frame 321 is mounted on the translation assembly 31. The first clamping block 322 and the second clamping block 323 are respectively located on the front and rear sides of the transfer frame 321. The clamping and placing drive 324 is used to drive the first clamping block 322 and the second clamping block 323 to move closer and further apart to clamp the disc 1. During positioning, the disc 1 is placed on the transfer frame 321, and the clamping and placing drive 324 drives the first clamping block 322 and the second clamping block 323 to move closer and closer to clamp the disc 1 for positioning. The structure is simple and reliable. The first clamping block 322 and the second clamping block 323 are respectively located on the front and rear sides of the transfer frame 321 in the translation direction to prevent the disc 1 from shifting back and forth due to inertia when the transfer frame 321 is in place, thus improving the accuracy of feeding.

[0044] Furthermore, such as Figure 2As shown, in this embodiment, the tray conveying mechanism 2 includes a pair of parallel conveyor belts 21, with a clearance interval 22 between the conveyor belts 21 for the passage of the clamping and transfer mechanism 3. The clearance interval 22 allows the clamping and transfer mechanism 3 to pass through, enabling the trays 1 to be stacked above the conveyor belts 21. After stacking, the stacking lifting mechanism 4 descends to lower the tray stack onto the conveyor belts 21 for discharge. The layout is reasonable and the operation is highly continuous.

[0045] Furthermore, such as Figure 5 As shown, in this embodiment, the stacking tray lifting mechanism 4 includes two lifting components 41 respectively disposed on both sides of the tray conveying mechanism 2. The two lifting components 41 can lift and lower the tray 1 on both sides respectively, providing good stability.

[0046] Preferably, in this embodiment, the lifting component 41 includes a support plate with a rubber pad (such as a polyurethane pad) provided on the support plate. When the disc body 1 moves up and down, the bottom of the disc body 1 contacts the rubber pad to prevent the disc body 1 from slipping during the up and down movement.

[0047] Furthermore, in this embodiment, the stacking and lifting mechanism 4 also includes a guide component 42 for guiding the lifting and lowering of the tray 1 and a limiting component 43 for limiting the tray 1. The guide component 42 can guide the lifting and lowering of the tray 1, which is beneficial to align the tray 1 with the tray 1 of the previous layer when stacking; the limiting component 43 can limit the tray 1 to prevent the stacked tray 1 from slipping.

[0048] Furthermore, such as Figure 6 and Figure 7 As shown, in this embodiment, the stacking tray holding mechanism 5 includes a pair of holding members 51 and a clamping drive member 52 for driving the pair of holding members 51 to move closer and further apart. The stacking tray lifting mechanism 4 lifts the tray 1 on the clamping and transferring mechanism 3 to the stacking tray holding mechanism 5, and the holding members 51 respectively support the two sides of the tray 1 for holding. Then, the stacking tray lifting mechanism 4 lifts the next tray 1 to the stacking tray holding mechanism 5 for stacking. The structure is simple and reliable.

[0049] Furthermore, in this embodiment, the retaining member 51 is provided with a clearance opening 511 for the passage of the vertical stiffening plates 11 on the outer wall of the disc body 1. In this embodiment, the outer side of the disc body 1 is provided with crisscrossing horizontal stiffening plates 12 and vertical stiffening plates 11. The retaining member 51 supports the horizontal stiffening plates 12 on both sides of the disc body 1 for retention. When the next disc body 1 is lifted for stacking, because the retaining member 51 is provided with a clearance opening 511 for the passage of the vertical stiffening plates 11 on the outer wall of the disc body 1, there is room for vertical movement between the disc bodies 1, preventing rigid collisions between the disc bodies 1 and ensuring good stacking stability.

[0050] Furthermore, in this embodiment, the conveying directions of the disc conveying mechanism 2 and the clamping and transferring mechanism 3 are the same, that is, the feeding and discharging conveying directions are the same, which prevents mutual interference during the feeding, stacking and discharging processes, and the layout is reasonable.

[0051] Example 2:

[0052] A method for transferring stacked pallets, using the stacked pallet transfer device of Embodiment 1, includes the following steps:

[0053] The clamping and transferring mechanism 3 clamps and transfers the trays 1 one by one to the bottom of the tray holding mechanism 5;

[0054] The stacking lifting mechanism 4 lifts the trays 1 on the clamping and transferring mechanism 3 one by one to the stacking holding mechanism 5 to form a stack of trays, and then lowers the stack of trays onto the tray conveying mechanism 2.

[0055] The disc conveyor mechanism 2 conveys the disc stacks for material discharge.

[0056] In this embodiment of the pallet transfer method, since the pallet conveying mechanism 2 is located below the pallet lifting mechanism 4, after pallet stacking is completed, the pallet lifting mechanism 4 only needs to lower the pallet stack, and the pallet conveying mechanism 2 can discharge the material. The next round of pallet transfer can proceed immediately without waiting, resulting in high work continuity and production efficiency. Furthermore, the clamping and transfer mechanism 3 uses clamping and transfer mechanisms 3 to clamp and transfer the pallets 1 one by one to the area below the pallet holding mechanism 5 for feeding. Compared to the external robotic arm and conveyor belt used in existing technologies, this facilitates the positioning and transfer of the pallets 1 and ensures accurate alignment with the upper pallet lifting mechanism 4, thus ensuring accurate feeding of the pallets 1 and preventing misalignment during lifting, achieving smooth pallet stacking.

[0057] The stacked pallet transfer method in this embodiment specifically describes the stacked pallet transfer process as follows:

[0058] S1. Place the first disc 1 on the disc positioning and clamping assembly 32. The disc positioning and clamping assembly 32 positions and clamps the first disc 1. The translation assembly 31 drives the disc positioning and clamping assembly 32 to translate until it is aligned with the stacking disc lifting mechanism 4.

[0059] S2, the stacking lifting mechanism 4 rises to lift and support the first plate 1 on the plate positioning clamping component 32, the translation component 31 drives the plate positioning clamping component 32 to translate back to its original position, the stacking holding mechanism 5 clamps the first plate 1 and keeps the first plate 1 in the lifted state, and the stacking lifting mechanism 4 descends back to its original position.

[0060] S3. Place the next disc 1 on the disc positioning and clamping assembly 32. The disc positioning and clamping assembly 32 positions and clamps the next disc 1. The translation assembly 31 drives the disc positioning and clamping assembly 32 to translate until it is aligned with the stacking disc lifting mechanism 4.

[0061] S4. The stacking lifting mechanism 4 rises to lift and support the next plate 1 on the plate positioning clamping component 32. The translation component 31 drives the plate positioning clamping component 32 to translate back to its original position, so that the next plate 1 is stacked with the bottom plate 1 on the stacking holding mechanism 5. The stacking holding mechanism 5 re-clamps the new bottom plate 1 and keeps the plate 1 in the lifted state. The stacking lifting mechanism 4 falls back to its original position.

[0062] S5. Repeat steps S3 to S4 until all trays 1 are stacked. The stacking holding mechanism 5 releases its grip, and the stacking lifting mechanism 4 descends to lower the stacked trays 1 onto the tray conveying mechanism 2. The tray conveying mechanism 2 then discharges the stacked trays.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of the present invention. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall still fall within the protection scope of the technical solutions of the present invention.

Claims

1. A stacked tray transfer device, characterized by: The system includes a tray conveying mechanism (2), a clamping and transferring mechanism (3), a tray stacking and lifting mechanism (4), and a tray holding mechanism (5). The tray holding mechanism (5) is located above the tray lifting mechanism (4), and the tray conveying mechanism (2) is located below the tray lifting mechanism (4). The clamping and transferring mechanism (3) is used to clamp and transfer trays (1) one by one to the tray holding mechanism (5). The tray lifting mechanism (4) is used to lift trays (1) on the clamping and transferring mechanism (3) one by one to the tray holding mechanism (5) to form a tray stack, and then lower the tray stack onto the tray conveying mechanism (2). The tray holding mechanism (5) includes a pair of holding members (51). The device includes a clamping drive (52) for driving the pair of retainers (51) to move closer and further apart. The retainers (51) are provided with clearance openings (511) for the passage of vertical stiffeners (11) on the outer wall of the disc body (1). The outer side of the disc body (1) is provided with horizontal stiffeners (12) and vertical stiffeners (11). The retainers (51) are used to support the horizontal stiffeners (12) on both sides of the disc body (1) for holding. The clearance openings (511) are used to allow the vertical stiffeners (11) on the outer wall of the disc body (1) to pass through, so that there is room for vertical movement between the disc bodies (1) to prevent rigid collisions between the disc bodies (1) when the next disc body (1) is lifted for stacking.

2. The stacking tray transfer device according to claim 1, characterized in that: The clamping and transfer mechanism (3) includes a translation component (31) and a disk positioning and clamping component (32). The disk positioning and clamping component (32) is mounted on the translation component (31) and is used to position and clamp the disk (1).

3. The stacking tray transfer device according to claim 2, characterized in that: The disc positioning and clamping assembly (32) includes a transfer frame (321), a first clamping block (322), a second clamping block (323), and a clamping and placing drive (324). The transfer frame (321) is mounted on the translation assembly (31). The first clamping block (322) and the second clamping block (323) are respectively mounted on the front and rear sides of the transfer frame (321). The clamping and placing drive (324) is used to drive the first clamping block (322) and the second clamping block (323) to move closer to each other and further away to clamp the disc (1).

4. The stacking tray transfer device according to claim 1, characterized in that: The disc conveying mechanism (2) includes a pair of parallel conveyor belts (21), and there is a clearance interval (22) between the conveyor belts (21) for the clamping and transfer mechanism (3) to pass through.

5. The stacking tray transfer device according to claim 1, characterized in that: The stacking lifting mechanism (4) includes two lifting components (41) respectively located on both sides of the tray conveying mechanism (2).

6. The stacking tray transfer device according to claim 5, characterized in that: The stacking lifting mechanism (4) further includes a guide component (42) for guiding the lifting of the tray (1) and a limiting component (43) for limiting the tray (1).

7. The stacking tray transfer device according to any one of claims 1 to 6, characterized in that: The conveying directions of the disc conveying mechanism (2) and the clamping and transferring mechanism (3) are the same.

8. A method for stacked pallet transfer, characterized in that: The process, performed using the stacked pallet transfer apparatus according to any one of claims 1 to 7, includes the following steps: The clamping and transferring mechanism (3) clamps and transfers the trays (1) one by one to the bottom of the tray holding mechanism (5); The stacking lifting mechanism (4) lifts the trays (1) on the clamping and transferring mechanism (3) one by one to the stacking holding mechanism (5) to form a stack of trays, and then lowers the stack of trays onto the tray conveying mechanism (2); The disc conveying mechanism (2) conveys the disc stacks for material discharge.

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