Automatic pallet unstacker

Abstract

The utility model discloses a tray automatic unstacker, including frame and unstacking mechanism and stacking mechanism, the unstacking mechanism includes unstacking conveying line and unstacking clamping mechanism, the stacking mechanism includes stacking conveying line and stacking clamping mechanism, the unstacking conveying line, stacking conveying line all erect in frame, the stacking conveying line is located the below of unstacking conveying line, and the conveying direction of two is opposite, the unstacking clamping mechanism, stacking clamping mechanism are erect respectively in the top of the output of unstacking conveying line, stacking conveying line, and two structures are same and include jacking mechanism and clamping mechanism, the jacking mechanism is located the bottom of the conveyance surface of unstacking conveying line, stacking conveying line, to lift the tray on the conveyance surface of two, the clamping mechanism elevatable is located the top of the conveyance surface of unstacking conveying line, stacking conveying line, to the tray that clamps the lifting of unstacking mechanism. The scheme automatic realization tray's stacking and unstacking.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, and specifically to an automatic pallet destacking machine. Background Technology

[0002] Pallet depalletizing is a crucial operation in modern logistics and manufacturing, separating stacked pallets one by one to facilitate subsequent processes. Traditionally, pallet splitting or separation relies on manual labor. Workers use hand tools or forklifts to separate the stacked pallets individually. However, this manual method is labor-intensive, inefficient, and prone to safety risks. Therefore, a more efficient automated depalletizer is needed to meet current depalletizing requirements.

[0003] Common pallet depalletizers, such as those disclosed in Publication No. CN211109980 U, employ a mobile gripping robot that repeatedly grasps and separates pallets. This structure largely simulates manual depalletizing, requiring the gripping robot to constantly move and switch gripping positions. Its efficiency remains limited, failing to maximize the efficiency advantages of mechanical depalletizing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automatic pallet depalletizer.

[0005] The objective of this utility model is achieved through the following technical solution: An automatic pallet depalletizer includes a frame and a depalletizing mechanism and a stacking mechanism horizontally arranged within it. The depalletizing mechanism includes a depalletizing conveyor line and a depalletizing clamping mechanism for separating a group of pallets stacked from top to bottom into individual pallets for transport. The stacking mechanism includes a stacking conveyor line and a stacking clamping mechanism for stacking individual pallets from top to bottom into groups for transport. Both the depalletizing and stacking conveyor lines are horizontally mounted within the frame, with the stacking conveyor line located below the depalletizing conveyor line and their transport directions opposite. The depalletizing and stacking clamping mechanisms are respectively mounted above the output ends of the depalletizing and stacking conveyor lines. Both have the same structure, including a lifting mechanism and a clamping mechanism. The lifting mechanism is located at the bottom of the transport surface of the depalletizing and stacking conveyor lines to lift the pallets located on their transport surfaces. The clamping mechanism is vertically and flexibly mounted at the top of the transport surface of the depalletizing and stacking conveyor lines to clamp the pallets lifted by the lifting mechanism.

[0006] Preferably, the stacking conveyor line includes a first stacking conveyor line and a second stacking conveyor line. The first stacking conveyor line constitutes the input end of the stacking conveyor line, and the second stacking conveyor line constitutes the output end of the stacking conveyor line. The stacking clamping mechanism is mounted above the second stacking conveyor line. The first stacking conveyor line is vertically and vertically mounted in the frame through a lifting mechanism. The first stacking conveyor line connects with the second stacking conveyor line through vertical lifting to complete the conveying of a single pallet.

[0007] Preferably, the lifting mechanism includes a linear motor and a connecting plate. The side of the first stacking conveyor line is fixed to the connecting plate, and the connecting plate is movably connected to the linear motor. The linear motor is vertically mounted on the frame and drives the first stacking conveyor line to move up and down through the connecting plate.

[0008] Preferably, the first stacking conveyor line, the second stacking conveyor line, and the destacking conveyor line are all belt conveyor lines, each including a first synchronous pulley and a first drive motor. A transmission connecting rod is connected between two relatively horizontally arranged first synchronous pulleys, and the motor shaft of the first drive motor is connected to the transmission connecting rod to drive the two first synchronous pulleys to rotate synchronously.

[0009] Preferably, the first stacking conveyor line, the second stacking conveyor line, and the destacking conveyor line further include a spacing adjustment mechanism. The spacing adjustment mechanism includes an adjustment motor and an adjustment rod. The adjustment motor is mounted on the frame. One end of the adjustment rod is connected to the motor shaft of the adjustment motor. Its outer wall has threads, and its two ends are radially and vertically inserted into the first stacking conveyor line, the second stacking conveyor line, and the destacking conveyor line. The adjustment motor drives the adjustment rod to rotate to adjust the spacing between the two first synchronous pulleys.

[0010] Preferably, the adjusting mechanism includes a set of adjusting rods, the outer ends of which rotate synchronously via a second synchronous pulley.

[0011] Preferably, the output ends of both the destacking conveyor and the stacking conveyor are equipped with stop blocks that are driven to rise and fall by stop cylinders.

[0012] Preferably, the lifting mechanism includes a lifting plate and a lifting cylinder. The two lifting cylinders are respectively disposed on the inner sidewalls of the second stacking conveyor line and the destacking conveyor line. Each lifting cylinder has a lifting plate at the top of its cylinder rod. The two lifting plates move up and down synchronously to lift or lower the pallet located above them.

[0013] Preferably, the clamping mechanism includes a lifting bracket, a clamping plate, a clamping cylinder, and a third synchronous pulley. Two lifting brackets are symmetrically mounted on the sides of the second stacking conveyor line and the destacking conveyor line. Each lifting bracket is slidably fitted with a clamping plate, and the two clamping plates are driven to lift synchronously by a lifting motor and the third synchronous pulley. The opposing inner sidewalls between the two clamping plates are clamping surfaces. Each clamping plate has a clamping cylinder on its back side to drive it to move inward, thereby clamping the pallet through the two clamping surfaces.

[0014] The beneficial effects of this utility model are mainly reflected in: 1. This solution sets up a destacking mechanism and a stacking mechanism to operate independently for destacking and stacking. The stacking mechanism is set at the bottom of the destacking mechanism, so that the upper destacking mechanism and the lower stacking mechanism form a cycle. That is, a stack of pallets is split by the upper destacking mechanism for feeding, and then the empty pallets flow into the lower stacking mechanism to realize the stacking and collection of empty pallets. This maximizes the use of mechanical mechanisms to achieve automated destacking and stacking, greatly improving production efficiency. 2. The stacking conveyor line in the stacking mechanism is split into a first stacking conveyor line and a second stacking conveyor line. The first stacking conveyor line is driven by a lifting mechanism to connect with the second stacking conveyor line by lifting up and down. This allows empty pallets after pallet loading to fall directly onto the first stacking conveyor line without needing to be manually placed at the bottom. The lifting of the first stacking conveyor line eliminates the distance difference between the destacking conveyor line and the stacking conveyor line, thereby making the recycling of empty pallets more convenient, efficient and fast. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings: Figure 1 : Schematic diagram of an embodiment of this utility model; Figure 2 : A partial schematic diagram from another angle of an embodiment of this utility model; Figure 3 : Schematic diagram of the destacking mechanism and stacking mechanism in the embodiments of this utility model; Figure 4 : A schematic diagram of the destacking mechanism in an embodiment of this utility model; Figure 5 : A cross-sectional view of the second stacking conveyor line in this embodiment of the present invention. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0017] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0018] like Figures 1 to 5 As shown, this utility model discloses an automatic pallet depalletizing machine, including a frame 1 and a depalletizing mechanism and a stacking mechanism horizontally arranged therein. The depalletizing mechanism includes a depalletizing conveyor line 2 and a depalletizing clamping mechanism 3, used to depalletize a group of pallets 6 stacked from top to bottom into individual pallets for conveying. The stacking mechanism includes a stacking conveyor line 4 and a stacking clamping mechanism 5, used to stack individual pallets 6 into groups from top to bottom for conveying. Both the depalletizing conveyor line 2 and the stacking conveyor line 4 are horizontally mounted within the frame 1, with the stacking conveyor line 4 located within the depalletizing conveyor line 1. Below line 2, and with opposite conveying directions, the depalletizing clamping mechanism 3 and the stacking clamping mechanism 5 are respectively mounted above the output ends of the depalletizing conveyor line 2 and the stacking conveyor line 4. Both have the same structure, including a lifting mechanism and a clamping mechanism. The lifting mechanism is located at the bottom of the conveying surface of the depalletizing conveyor line 2 and the stacking conveyor line 4 to lift the pallet 6 located on the conveying surface of the two. The clamping mechanism is vertically and flexibly mounted at the top of the conveying surface of the depalletizing conveyor line 2 and the stacking conveyor line 4 to clamp the pallet 6 lifted by the lifting mechanism.

[0019] This solution sets up a destacking mechanism and a stacking mechanism to operate independently for destacking and stacking. The stacking mechanism is located at the bottom of the destacking mechanism, so that the upper destacking mechanism and the lower stacking mechanism can form a cycle. That is, a stack of pallets 6 is split by the upper destacking mechanism for feeding, and then the empty pallets 6 flow into the lower stacking mechanism to realize the stacking and collection of empty pallets. This maximizes the use of mechanical mechanisms to achieve automated destacking and stacking, greatly improving production efficiency.

[0020] Specifically, the stacking conveyor line 4 includes a first stacking conveyor line 401 and a second stacking conveyor line 402. The first stacking conveyor line 401 constitutes the input end of the stacking conveyor line 4, and the second stacking conveyor line 402 constitutes the output end of the stacking conveyor line 4. The stacking clamping mechanism 5 is mounted above the second stacking conveyor line 402. The first stacking conveyor line 401 is vertically and flexibly mounted within the frame 1 via a lifting mechanism. The first stacking conveyor line 401 connects with the second stacking conveyor line 402 through vertical lifting to complete the conveying of a single pallet 6. The stacking conveyor line 4 in the stacking mechanism is split into a first stacking conveyor line 401 and a second stacking conveyor line 402. The first stacking conveyor line 401 is connected to the frame 1 through a lifting mechanism, so that the first stacking conveyor line 401 can move up and down. By moving up and down, it can dock with the output end of the destacking mechanism above and the second stacking conveyor line 402 located at the bottom of the frame 1, so that after the pallet 6 is loaded, the empty pallet 6 is output from the output end of the destacking mechanism and does not need to be manually placed at the bottom, but can fall directly onto the first stacking conveyor line 401. The distance difference between the destacking conveyor line 2 and the stacking conveyor line 4 is eliminated by the lifting of the first stacking conveyor line 401, thereby realizing the recycling of the empty pallet 6 more conveniently, efficiently and quickly.

[0021] The lifting mechanism includes a linear motor 701 and a connecting plate 702. The side of the first stacking conveyor line 401 is fixed to the connecting plate 702. The connecting plate 702 is movably connected to the linear motor 701. The linear motor 701 is vertically mounted on the frame 1 and drives the first stacking conveyor line 401 to move up and down through the connecting plate 702.

[0022] The frame 1 has windows 101 that connect to the output and input ends of the first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2, respectively, to input or output pallets 6. The destacking conveyor line 2 can be an integral conveyor line, or it can be divided into two independent conveyor lines like the stacking conveyor line 4 for coordinated conveying.

[0023] The first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2 are all belt conveyors, each including a first synchronous pulley 10 and a first drive motor 11. A transmission connecting rod 12 connects two relatively horizontally arranged first synchronous pulleys 10, enabling synchronous operation. Each first synchronous pulley 10 includes a synchronous belt and two synchronous wheels. The two synchronous wheels are pivotally mounted on the frame 1 or the side plate of the frame of the first stacking conveyor line 401, the second stacking conveyor line 402, or the destacking conveyor line 2. The two synchronous wheels are located at the output and input ends of the first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2, respectively. The synchronous belt is wound around the two synchronous wheels, with its top outer surface serving as the conveying surface. The transmission of the conveying surface is achieved through the rotation of the two synchronous wheels. The "synchronous pulley" is existing technology and not the focus of this solution, so it will not be elaborated here. The structures of the "second synchronous pulley 15" and "third synchronous pulley 904" are similar to those of the first synchronous pulley 10, all including a synchronous belt and a synchronous pulley. The specific placement of the synchronous pulley and the length of the synchronous belt differ among the three, but their operating principles are the same. The motor shaft of the first drive motor 11 is connected to the transmission connecting rod 12 to drive the two first synchronous pulleys 10 to rotate synchronously. The first drive motor 11 is preferably a servo motor to facilitate start-stop control, or it can be other motors that can be controlled by a control program, working in conjunction with a stop structure (such as a stop block) for start-stop control.

[0024] The first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2 also include a spacing adjustment mechanism. The spacing adjustment mechanism includes an adjustment motor 13 and an adjustment rod 14. The adjustment motor 13 is mounted on the frame 1. One end of the adjustment rod 14 is connected to the motor shaft of the adjustment motor 13. Its outer wall has threads, and its two ends are radially and vertically inserted into the first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2. Specifically, the adjustment rod 14 is inserted into the frame side plate of the first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2. The adjustment motor 13 drives the adjustment rod 14 to rotate to adjust the spacing between the frame side plates of the first stacking conveyor line 401, the second stacking conveyor line 402, and the destacking conveyor line 2, thereby adjusting the spacing between the two first synchronous pulleys 10 and adjusting the width of the conveying surface to adapt to the conveying of pallets 6 of different widths.

[0025] The adjustment mechanism includes a set of adjustment rods 14, i.e., there is one or more adjustment rods 14, and the outer ends of the set of adjustment rods 14 rotate synchronously through a second synchronous pulley 15. The adjustment mechanism ensures the consistency of the spacing after adjustment of the relatively long first stacking conveyor line 401, second stacking conveyor line 402, and destacking conveyor line 2 by setting multiple adjustment rods 14.

[0026] The output ends of both the depalletizing conveyor line 2 and the stacking conveyor line 4 are equipped with stop blocks 17 that are driven to rise and fall by stop cylinders 16. The stop block 17 can be any shape that can abut against the pallet 6. The stop block 17 is located at the cylinder end of the stop cylinder 16 and is driven to rise and fall by it to confine the pallet 6 to the conveying surface of the depalletizing conveyor line 2 and the stacking conveyor line 4.

[0027] The lifting mechanism includes a lifting plate 801 and a lifting cylinder 802. Two lifting cylinders 802 are respectively disposed on the inner sidewalls of the second stacking conveyor line 402 and the destacking conveyor line 2. Each lifting cylinder 802 has a lifting plate 801 at the top of its cylinder rod. The two lifting plates 801 move synchronously up and down to lift or lower the pallet 6 located above them. The two lifting plates 801 are positioned between the two first synchronous pulleys 10 to fit as closely as possible to the bottom of the pallet 6, stably supporting the pallet 6.

[0028] The clamping mechanism includes a lifting bracket 901, a clamping plate 902, a clamping cylinder 903, and a third synchronous pulley 904. Two lifting brackets 901 are symmetrically mounted on the sides of the second stacking conveyor line 402 and the destacking conveyor line 2. Each lifting bracket 901 has a clamping plate 902 slidably mounted on it, and the two clamping plates 902 are driven to move up and down synchronously by a lifting motor 905 and the third synchronous pulley 904. Specifically, the two third synchronous pulleys 904 are vertically mounted on the lifting bracket 901, and their bottoms are connected as one unit by a lifting connecting rod. The lifting motor 905 is connected to one end of the lifting connecting rod, and the synchronous operation of the two third synchronous pulleys 904 is achieved by driving the rotation of the lifting connecting rod. The back of the clamping plate 902 is fixed to the third synchronous pulley 904 to follow the movement of the second synchronous pulley 904 and move up and down.

[0029] The opposing inner sidewalls between the two clamping plates 902 are clamping surfaces 900. Each clamping plate 902 has a clamping cylinder 903 on its back side to drive it to move inward, thereby clamping the pallet 6 through the two clamping surfaces. The width of the clamping surface 900 is at least not less than the side width of one pallet 6 to ensure reliable clamping of the pallet 6. The clamping plates 902 are higher than the conveying surfaces of the depalletizing conveyor line 2 and the stacking conveyor line 4, allowing them to move up and down to clamp or lower the pallet 6.

[0030] In addition, in order to achieve automated operation of the destacking and stacking mechanisms, the destacking and stacking mechanisms are equipped with control components at the input and output ends of the destacking conveyor line 2, destacking clamping mechanism 3, stacking conveyor line 4, and stacking clamping mechanism 5. These components are used to control the destacking conveyor line 2, destacking clamping mechanism 3, stacking conveyor line 4, and stacking clamping mechanism 5 to perform conveying, clamping, and other operations. These components include, but are not limited to, position sensors, infrared sensors, photoelectric sensors, and control switches.

[0031] The working principle of the destacking mechanism is as follows: S11, a stacked pallet 6 is input from the input end of the destacking conveyor line 2 and is conveyed by the destacking conveyor line 2 to the destacking clamping mechanism 3 and stops. S12, the lifting mechanism in the destacking clamping mechanism 3 lifts a stack of pallets 6 upwards, and the clamping plate 902 of the clamping mechanism in the destacking clamping mechanism 3 clamps the two sides of the second to last pallet 6 at the bottom of a set of pallets 2. S13, the lifting mechanism in the destacking clamping mechanism 3 retracts downward, so that the pallet 6 on its lifting plate 801 falls back onto the conveying surface of the destacking conveyor line 2, separating the pallet 6 at the bottom of a group of pallets 6 from the group of pallets 6, thereby realizing the destacking of a single pallet 6. By repeating steps S11-S13 in sequence, the individual separation and destacking of a group of pallets 6 can be achieved.

[0032] The working principle of the stacking mechanism is as follows: S21, after a single pallet 6 is fed into position from the input end of the first stacking conveyor line 401, the first stacking conveyor line 401 stops. S22, the first stacking conveyor line 401 is lowered by the lifting mechanism until it connects with the second stacking conveyor line 402; S23, the first stacking conveyor line 401 is restarted and the pallet 6 on its conveying surface is conveyed into the stacking clamping mechanism 5 on the conveying surface of the second stacking conveyor line 402; S24, the lifting mechanism in the stacking clamping mechanism 5 lifts the pallet 6 on the conveying surface of the second stacking conveyor line 402 upward, and is clamped by the clamping plate 902 of the clamping mechanism in the stacking clamping mechanism 5; S25, the lifting mechanism inside the stacking clamping mechanism 5 retracts downward to complete the stacking of a single pallet 6.

[0033] By repeating steps S21-S25 in sequence, individual pallets 6 can be stacked into a group.

[0034] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic pallet depalletizer, characterized in that: The system includes a frame (1) and a destacking mechanism and a stacking mechanism horizontally arranged therein. The destacking mechanism includes a destacking conveyor line (2) and a destacking clamping mechanism (3) for disassembling a group of pallets (6) stacked from top to bottom into individual pallets for transport. The stacking mechanism includes a stacking conveyor line (4) and a stacking clamping mechanism (5) for stacking individual pallets (6) from top to bottom into groups for transport. The destacking conveyor line (2) and the stacking conveyor line (4) are both horizontally arranged within the frame (1), with the stacking conveyor line (4) located below the destacking conveyor line (2). The conveying directions are opposite. The destacking clamping mechanism (3) and the stacking clamping mechanism (5) are respectively mounted above the output ends of the destacking conveyor line (2) and the stacking conveyor line (4). They have the same structure and include a lifting mechanism and a clamping mechanism. The lifting mechanism is located at the bottom of the conveying surface of the destacking conveyor line (2) and the stacking conveyor line (4) to lift the pallet (6) on the conveying surface of the two. The clamping mechanism is vertically and vertically mounted at the top of the conveying surface of the destacking conveyor line (2) and the stacking conveyor line (4) to clamp the pallet (6) lifted by the lifting mechanism.

2. The automatic pallet depalletizer according to claim 1, characterized in that: The stacking conveyor line (4) includes a first stacking conveyor line (401) and a second stacking conveyor line (402). The first stacking conveyor line (401) constitutes the input end of the stacking conveyor line (4), and the second stacking conveyor line (402) constitutes the output end of the stacking conveyor line (4). The stacking clamping mechanism (5) is mounted above the second stacking conveyor line (402). The first stacking conveyor line (401) is vertically and vertically mounted in the frame (1) through a lifting mechanism. The first stacking conveyor line (401) connects with the second stacking conveyor line (402) through vertical lifting to complete the conveying of a single pallet (6).

3. The automatic pallet depalletizer according to claim 2, characterized in that: The lifting mechanism includes a linear motor (701) and a connecting plate (702). The side of the first stacking conveyor line (401) is fixed on the connecting plate (702). The connecting plate (702) is movably connected to the linear motor (701). The linear motor (701) is vertically mounted on the frame (1) and drives the first stacking conveyor line (401) to move up and down through the connecting plate (702).

4. The automatic pallet depalletizer according to claim 2, characterized in that: The first stacking conveyor line (401), the second stacking conveyor line (402), and the destacking conveyor line (2) are all belt conveyor lines, each including a first synchronous pulley (10) and a first drive motor (11). A transmission connecting rod (12) is connected between two relatively horizontally arranged first synchronous pulleys (10). The motor shaft of the first drive motor (11) is connected to the transmission connecting rod (12) to drive the two first synchronous pulleys (10) to rotate synchronously.

5. The automatic pallet depalletizer according to claim 4, characterized in that: The first stacking conveyor line (401), the second stacking conveyor line (402), and the destacking conveyor line (2) also include a spacing adjustment mechanism. The spacing adjustment mechanism includes an adjustment motor (13) and an adjustment rod (14). The adjustment motor (13) is mounted on the frame (1). One end of the adjustment rod (14) is connected to the motor shaft of the adjustment motor (13). Its outer wall has threads, and its two ends are radially and vertically inserted into the first stacking conveyor line (401), the second stacking conveyor line (402), and the destacking conveyor line (2). The adjustment motor (13) drives the adjustment rod (14) to rotate to adjust the spacing between the two first synchronous pulleys (10).

6. The automatic pallet depalletizer according to claim 5, characterized in that: The adjustment mechanism includes a set of adjustment rods (14), and the outer ends of the set of adjustment rods (14) rotate synchronously through a second synchronous pulley (15).

7. The automatic pallet depalletizer according to claim 6, characterized in that: The output ends of the destacking conveyor line (2) and the stacking conveyor line (4) are both equipped with stop blocks (17) that are driven to rise and fall by stop cylinders (16).

8. The automatic pallet depalletizer according to claim 7, characterized in that: The lifting mechanism includes a lifting plate (801) and a lifting cylinder (802). The two lifting cylinders (802) are respectively disposed on the inner side wall of the second stacking conveyor line (402) and the destacking conveyor line (2). The top of the cylinder rod of each lifting cylinder (802) is provided with a lifting plate (801). The two lifting plates (801) move up and down synchronously to lift or lower the pallet (6) located above them.

9. The automatic pallet depalletizer according to claim 8, characterized in that: The clamping mechanism includes a lifting bracket (901), a clamping plate (902), a clamping cylinder (903), and a third synchronous pulley (904). Two lifting brackets (901) are symmetrically mounted on the sides of the second stacking conveyor line (402) and the destacking conveyor line (2). Each lifting bracket (901) is slidably fitted with a clamping plate (902), and the two clamping plates (902) are driven to rise and fall synchronously by a lifting motor (905) and the third synchronous pulley (904). The inner sidewalls opposite to each other between the two clamping plates (902) are clamping surfaces (900). Each clamping plate (902) is provided with a clamping cylinder (903) on its back side to drive it to move inward, thereby clamping the pallet (6) through the two clamping surfaces.

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