A pallet stacker

Abstract

This utility model discloses a pallet stacking machine, including a lifting device and a stacking support. The lifting device is disposed at the bottom of the stacking support. The lifting device includes a carrier plate, a base, and a hydraulic lift. The stacking support includes a bottom crossbeam, a vertical frame, locking devices, and a support beam. The vertical frame and the bottom crossbeam form a cuboid frame. Multiple locking devices are symmetrically arranged on the vertical frame. The support beam is fixedly connected to the lifting device and is used to prevent the lifting device from tipping over. The carrier plate of the lifting device lifts the pallet to a set height. The pallet is locked to the vertical frame by the locking devices. The carrier plate falls back, and a new pallet is then transported to the carrier plate. The new pallet is lifted to a set height and lifts the previous old pallet. This cycle repeats to achieve the stacking function.

Description

Technical Field

[0001] This utility model relates to the field of stacking machine technology, specifically a pallet stacking machine. Background Technology

[0002] In actual production, a large number of pallets are needed for loading and unloading products. After all the products on the pallet have been loaded and unloaded, the empty pallets are moved to the transfer station. The empty pallets need to be collected one by one and stacked together. Currently, the collection and stacking of empty pallets mainly relies on production personnel to stack them manually, which is labor-intensive. If stacking equipment can be developed, labor costs can be reduced and the stacking will be more stable. Utility Model Content

[0003] The purpose of this invention is to provide a pallet stacking machine to solve the problem of time-consuming and labor-intensive manual pallet stacking mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pallet stacking machine, comprising a lifting device and a stacking support, wherein the lifting device is disposed at the bottom of the stacking support; characterized in that: The lifting device includes a carrier plate, a base, and a hydraulic lift. The base is located at the bottom of the stacker and contacts the ground. The bottom fixed end of the hydraulic lift is fixedly connected to the base, and the top lifting end of the hydraulic lift is fixedly connected to the carrier plate. The stacking support includes a bottom crossbeam, a vertical frame, locking devices, and a support beam. The vertical frame and the bottom crossbeam form a cuboid frame. There are multiple locking devices, which are symmetrically arranged on the vertical frame. The support beam is fixedly connected to the lifting device and is used to prevent the lifting device from tipping over.

[0005] Preferably, the lifting device is provided with a support plate, which is fixedly connected to the fixed end of the hydraulic lift and to the support beam. The support plate is used to stabilize the lifting device and prevent it from tipping over.

[0006] Preferably, the support plate is provided with a sliding hole, and a support rod is fixedly provided at the bottom of the carrier plate, the support rod passing through the sliding hole.

[0007] Preferably, the vertical frame is symmetrically provided with conveyor frames, the conveyor frames are provided with conveyor chains, the conveyor frames are connected to each other by gear rollers, the gear rollers are also externally connected to a drive motor, and the conveyor frames are slightly higher than the lifting device in the retracted state.

[0008] Preferably, the locking device includes a mounting beam, a locking latch, and a blocking beam. The mounting beam is used to install the locking device on the vertical frame, the locking latch is used to lock the tray after it is lifted, and the blocking beam is used to block the locking latch after the tray is locked.

[0009] Preferably, the locking mechanism includes a mounting base and locking teeth. The locking teeth are divided into a front bar and a rear bar. The center of gravity of the locking teeth is inside the stacker. The front bar is inclined towards the inside of the stacker. The top of the front bar is horizontal. The inclination length of the front bar towards the inside of the stacker gradually increases with the increase of height. The rear bar extends outward from the stacker. The locking teeth and the mounting base are movably connected. The mounting base is used to install the locking mechanism on the mounting beam. The rear bar is disposed between the mounting beam and the blocking beam.

[0010] Preferably, the rear bumper is provided with a buffer seat, and a follower rod is provided between the locks on the same side, and the rear bumper between the locks on the same side is fixedly connected to the follower rod.

[0011] Preferably, the stacker also includes a conveyor belt, the end of which is provided with a guide rail extending toward the conveyor frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention employs a carrier tray that lifts the pallet upwards. When the pallet collides with the front bumper, the front bumper is lifted upwards, causing the rear bumper to move downwards. Once the pallet has been transported to a position exceeding the highest point of the front bumper, the front bumper, under the influence of gravity, falls back down. At this point, the rear bumper is blocked by the blocking beam. The carrier tray falls back down, and during this process, the pallet is blocked by the front bumper on all sides, thus detaching the pallet from the carrier tray and stacking it on the vertical frame. This process is repeated until all pallets are stacked. This invention can automatically stack pallets, saving time and effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of the lifting device of this utility model; Figure 3 This is a bottom view of the lifting device of this utility model. Figure 4 This is a three-dimensional structural diagram of the card lock of this utility model; Figure 5 This is a three-dimensional structural diagram of the stacking support of this utility model; Figure 6 This is a top view of the stacking support structure of this utility model; Figure 7 This is a side view of the stacking support structure of this utility model; In the diagram: 1. Lifting device; 2. Stacking support; 3. Conveyor frame; 4. Conveyor belt; 11. Carrier tray; 12. Base; 13. Hydraulic lift; 14. Support plate; 15. Support rod; 21. Horizontal beam; 22. Vertical frame; 23. Locking device; 24. Support beam; 31. Conveyor chain; 32. Gear roller; 33. Drive motor; 41. Guide rail; 231. Mounting beam; 232. Lock; 233. Blocking beam; 2321. Mounting seat; 2322. Locking tooth; 2323. Front bumper; 2324. Rear bumper; 2325. Follower rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This utility model provides an embodiment: a pallet stacking machine, including a lifting device 1 and a stacking support 2, wherein the lifting device 1 is disposed at the bottom of the stacking support 2; the lifting device 1 includes a carrier pallet 11, a base 12, and a hydraulic lift 13, wherein the base 12 is disposed at the bottom of the stacking machine and in contact with the ground, and the bottom fixed end of the hydraulic lift 13 is fixedly connected to the base 12, and the top lifting end of the hydraulic lift 13 is fixedly connected to the carrier pallet 11; the stacking support 2 includes a bottom crossbeam 21, a vertical frame 22, a locking device 23, and a support beam 24, wherein the vertical frame 22 and the bottom crossbeam 21 form a cuboid frame. The locking devices 23 are multiple and symmetrically arranged on the vertical frame 22. The support beam 24 is fixedly connected to the lifting device 1 and is used to prevent the lifting device 1 from tipping over. In this utility model, the carrier 11 of the lifting device 1 lifts the pallet to a set height. The pallet is locked to the vertical frame 22 by the locking devices 23. The carrier 11 falls back, and a new pallet is then transported to the carrier 11. The new pallet is lifted to the set height and lifts the old pallet. The carrier 11 falls back, and the new pallet is locked to the vertical frame 22 by the locking devices 23. This cycle repeats to achieve the stacking function.

[0016] Specifically, the lifting device 1 is provided with a support plate 14, which is fixedly connected to the fixed end of the hydraulic lift 13 and to the support beam 24. The support plate 14 is used to stabilize the lifting device 1 and prevent it from tipping over.

[0017] Specifically, the support plate 14 is provided with a sliding hole, and a support rod 15 is fixedly provided at the bottom of the carrier plate 11, the support rod 15 passing through the sliding hole. The support rod 15 can prevent the carrier plate 11 from tilting, protect the connection between the hydraulic lift 13 and the carrier plate 11, and improve service life.

[0018] Specifically, the vertical frame 22 is symmetrically provided with conveyor frames 3, the conveyor frames 3 are provided with conveyor chains 31, and the conveyor frames 3 are connected to each other by gear rollers 32. The gear rollers 32 are also externally connected to a drive motor 33. The conveyor frames 3 are slightly higher than the lifting device 1 in the retracted state, which can realize automatic pallet feeding and reduce manual labor.

[0019] Specifically, the locking device 23 includes a mounting beam 231, a locking latch 232, and a blocking beam 233. The mounting beam 231 is used to install the locking device 23 on the vertical frame 22. The locking latch 232 is used to lock the pallet after it has been lifted. The blocking beam 233 is used to block the locking latch 232 after the pallet has been locked. The locking latch 232 includes a mounting base 2321 and locking teeth 2322. The locking teeth 2322 are divided into a front bar 2323 and a rear bar 2324. The center of gravity of the locking teeth 2322 is inside the stacker. The front bar 2323 is inclined towards the inside of the stacker. The top of the front bar 2323 is horizontal. The slant length gradually increases with the height. The rear bar 2324 extends outward from the stacker. The locking tooth 2322 and the mounting seat 2321 are movably connected. The mounting seat 2321 is used to install the locking 232 on the mounting beam 231. The rear bar 2324 is located between the mounting beam 231 and the blocking beam 233. With this structure, the locking device 23 can open under force during the process of the pallet 11 lifting the pallet. After the pallet 11 falls back, the front bar 2323 falls back under the action of gravity to support the pallet. Furthermore, the rear bar 2324 and the blocking beam 233 can ensure normal operation when the overall mass of the pallet increases significantly.

[0020] Specifically, the rear bumper 2324 is provided with a buffer seat, and a follower rod 2325 is provided between the locks 232 on the same side. The rear bumper 2324 between the locks 232 on the same side is fixedly connected to the follower rod 2325, which can realize a linkage effect. Even if a single lock 232 has a problem, it can be driven to move by the follower rod.

[0021] Specifically, the stacker also includes a conveyor belt 4, the end of which is provided with a guide rail 41 extending toward the conveyor frame 3, ensuring that the pallet can fall accurately onto the conveyor frame 3.

[0022] The specific working principle is as follows: The conveyor belt 4 transports the pallet to the conveyor frame 3. The conveyor chain 31 on the conveyor frame 3 is driven by the drive motor 33, which transports the pallet to the center position of the stacking support 2. Then, the hydraulic lift 13 of the lifting device 1 rises, thereby driving the carrier 11 to move upward. The carrier 11 lifts the pallet and moves upward. When the pallet collides with the front bar 2323, the front bar 2323 is lifted upward by the collision. The front bar 2323 drives the rear bar 2324 to move downward. When the pallet is transported to a position higher than the highest position of the front bar 2323, the front bar 2323 falls downward due to gravity. At this time, the rear bar 2324 is blocked by the blocking beam 233. The carrier 11 falls downward. During the fall, the pallet is blocked by the front bar 2323 on all sides, so the pallet is separated from the carrier 11 and stacked on the vertical frame 22. This process is repeated until all the pallets are stacked.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pallet stacking machine, comprising a lifting device (1) and a stacking support (2), wherein the lifting device (1) is disposed at the bottom of the stacking support (2); characterized in that: The lifting device (1) includes a carrier plate (11), a base (12), and a hydraulic lift (13). The base (12) is located at the bottom of the stacker and is in contact with the ground. The bottom fixed end of the hydraulic lift (13) is fixedly connected to the base (12), and the top lifting end of the hydraulic lift (13) is fixedly connected to the carrier plate (11). The stacking support (2) includes a bottom crossbeam (21), a vertical frame (22), a locking device (23), and a support beam (24). The vertical frame (22) and the bottom crossbeam (21) form a cuboid frame. There are multiple locking devices (23), which are symmetrically arranged on the vertical frame (22). The support beam (24) is fixedly connected to the lifting device (1) and is used to prevent the lifting device (1) from tipping over.

2. The pallet stacking machine according to claim 1, characterized in that: The lifting device (1) is provided with a support plate (14), which is fixedly connected to the fixed end of the hydraulic lift (13) and fixedly connected to the support beam (24). The support plate (14) is used to stabilize the lifting device (1) and prevent it from falling over.

3. The pallet stacking machine according to claim 2, characterized in that: The support plate (14) is provided with a sliding hole, and the bottom of the carrier plate (11) is fixedly provided with a support rod (15), which passes through the sliding hole.

4. The pallet stacking machine according to claim 1, characterized in that: The vertical frame (22) is symmetrically provided with a conveyor frame (3), the conveyor frame (3) is provided with a conveyor chain (31), the conveyor frames (3) are connected to each other by a gear roller (32), the gear roller (32) is also externally connected to a drive motor (33), and the conveyor frame (3) is slightly higher than the lifting device (1) in the retracted state.

5. A pallet stacking machine according to claim 1, characterized in that: The locking device (23) includes a mounting beam (231), a locking latch (232), and a blocking beam (233). The mounting beam (231) is used to install the locking device (23) on the vertical frame (22). The locking latch (232) is used to lock the pallet after it is lifted. The blocking beam (233) is used to block the locking latch (232) after the pallet is locked.

6. A pallet stacking machine according to claim 5, characterized in that: The locking mechanism (232) includes a mounting base (2321) and locking teeth (2322). The locking teeth (2322) are divided into a front bar (2323) and a rear bar (2324). The center of gravity of the locking teeth (2322) is inside the stacker. The front bar (2323) is inclined towards the inside of the stacker. The top of the front bar (2323) is horizontal. The inclination length of the front bar (2323) towards the inside of the stacker gradually increases with the increase of height. The rear bar (2324) extends outward from the stacker. The locking teeth (2322) and the mounting base (2321) are movably connected. The mounting base (2321) is used to install the locking mechanism (232) on the mounting beam (231). The rear bar (2324) is located between the mounting beam (231) and the blocking beam (233).

7. A pallet stacking machine according to claim 6, characterized in that: The rear bumper (2324) is provided with a buffer seat, and a follower rod (2325) is provided between the latches (232) on the same side. The rear bumper (2324) between the latches (232) on the same side is fixedly connected to the follower rod (2325).

8. A pallet stacking machine according to claim 4, characterized in that: The stacker also includes a conveyor belt (4), the end of which is provided with a guide rail (41) extending toward the conveyor frame (3).

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