A warehouse logistics pallet stacking device

Abstract

The present invention discloses a warehouse logistics pallet stacking arrangement device, comprising a bottom plate, a pallet storage box is arranged on one side of the top of the bottom plate, the pallet storage box comprises a horizontal plate and a side plate, the horizontal plate and the side plate are arranged perpendicular to each other, and a sorting device is arranged on the other side of the top of the bottom plate, the sorting device comprises a top plate, four corners of the bottom of the top plate are fixedly connected to the bottom plate by support rods, a lifting member is installed at the center of the top of the top plate, the output end of the bottom of the lifting member passes through the top plate and is fixedly connected to the lifting plate, and guide slide bars are vertically installed at the four corners of the top of the lifting plate. The present invention first adjusts the longitudinal position of the empty pallet to make the back of the empty pallet rest against the inner wall of the horizontal plate, and then adjusts the lateral position of the empty pallet to make the side of the empty pallet rest against the inner wall of the side plate, so that the pallet stacks stacked with the empty pallets can be sorted, the pallet stacks can be stacked neatly, the adjustment is convenient, and the pallets will not be damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of pallet stacking arrangement, and in particular to a warehousing logistics pallet stacking arrangement device. Background Art

[0002] In the field of warehousing and logistics, in order to facilitate the handling and transportation of goods, the goods are usually placed on various pallets for transportation. After the goods are transported away, the empty pallets are collected and sorted into stacks for storage, and then put into circulation on the conveyor line or stored on the shelves for secondary disassembly and use. At present, the pallet stacks collected by manual labor or forklifts are not stacked neatly and their appearance exceeds the allowable size. When they are disassembled by machines on the conveyor line or put into shelves by stackers, they often stop. In order to prevent this from happening, the empty pallets need to be stacked and sorted before they are disassembled or stored on the shelves.

[0003] The existing technology generally adopts a plywood-type shaping machine. The principle of this shaping machine is to use mechanical plywood to clamp and align the irregular parts of the pallet stack. However, whether it is a wooden pallet or a plastic pallet, due to its heavy weight and the fact that some pallets have anti-slip treatment on their surfaces, the friction between the pallets after being stacked is large. The clamping and aligning method will cause damage to the pallets. Therefore, it is particularly important to design a warehouse logistics pallet stacking device to solve the above problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a warehouse logistics pallet stacking device, which is intended to solve the problem that the pallets are easily damaged by clamping and aligning them using a splint-type shaping machine in the existing technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A warehouse logistics pallet stacking arrangement device includes a bottom plate, a pallet storage box is provided on one side of the top of the bottom plate, the pallet storage box includes a horizontal plate and a side plate, the horizontal plate and the side plate are arranged vertically, and a collating device is provided on the other side of the top of the bottom plate, the collating device includes a top plate, the four corners of the bottom of the top plate are fixedly connected to the bottom plate by support rods, a lifting member is installed at the center of the top of the top plate, the output end of the bottom of the lifting member passes through the top plate and is fixedly connected to the lifting plate, and guide slide bars are vertically installed at the four corners of the top of the lifting plate The top end of the guide slide rod passes through the top plate and extends outward, a lateral displacement component is installed at the bottom of the lifting plate, a longitudinal displacement component is installed at the bottom of the moving seat of the lateral displacement component, and an L-shaped mounting plate is installed at the bottom of the moving seat of the longitudinal displacement component. Two fork plates are provided on the side of the L-shaped mounting plate close to the pallet storage box, and the two fork plates are used to insert into the fork grooves of the pallet. A spacing adjustment member is provided between the two fork plates, a moving mechanism is provided in the fork plate, and a accommodating frame is provided at the bottom of the fork plate, and a supporting mechanism is provided in the accommodating frame.

[0007] In a preferred embodiment, the support mechanism includes a second motor, a bidirectional screw, a bearing seat, a threaded sleeve, a movable plate, a movable rod and a movable wheel, the bidirectional screw being arranged at the inner top end of the accommodating frame, and the two ends of the bidirectional screw being fixed to the fork plate through the bearing seat, the second motor being placed in one of the accommodating frames and the output end of the second motor being fixedly connected to the end of one of the bidirectional screws, a movable plate being arranged inside the movable plate below the bidirectional screw, movable wheels being installed on both sides of the bottom of the movable plate, threaded sleeves being threaded on the threads on both sides of the bidirectional screw with opposite rotation directions, a movable rod being hinged between each threaded sleeve and the movable plate, and a second linkage assembly being arranged between the two bidirectional screws.

[0008] In a preferred embodiment, the second linkage assembly includes a second linkage shaft, a first bevel gear and a second bevel gear. A second linkage shaft is arranged between the two accommodating frames. Both ends of the second linkage shaft extend into the two accommodating frames respectively and are connected to the first bevel gear. Each of the bidirectional screw rods is fixedly sleeved with a second bevel gear meshing with the first bevel gear.

[0009] In a preferred embodiment, the moving mechanism includes a rotating shaft, a roller, a first sprocket and a chain. The interior of the fork plate is rotatably connected to multiple shafts at equal intervals along the length direction. The roller is fixedly sleeved on the rotating shaft, and the first sprocket is also fixedly sleeved on the rotating shaft. All the first sprockets in the fork plate are connected by chain transmission, and a first linkage assembly is provided between two of the chains.

[0010] In a preferred embodiment, the first linkage assembly includes a first linkage shaft, a second sprocket and a first motor, the first linkage shaft is arranged on the two fork plates, the two ends of the first linkage shaft respectively extend into the two fork plates and are connected to the second sprockets, the second sprockets are engaged in the chain, one end of one of the second sprockets is connected to the first motor, and the first motor is installed in the fork plates.

[0011] In a preferred embodiment, a through slot corresponding to the position of the roller is formed on the top of the fork plate, and the top end of the roller passes through the through slot and extends outward.

[0012] In a preferred embodiment, the first linkage shaft and the second linkage shaft both include a sleeve shaft and a telescopic shaft arranged at both ends of the sleeve shaft, and an accommodating groove is provided inside both ends of the sleeve shaft. One end of the sleeve shaft is movably inserted into the accommodating groove, and a limiting groove is provided on the inner wall of the accommodating groove along the length direction, and a limiting block is provided on the outer wall of the sleeve shaft along the length direction and is slidably connected to the limiting groove.

[0013] In a preferred embodiment, the spacing adjustment member is a double-axis cylinder, which is mounted on the inner wall of the L-shaped mounting plate, and both ends of the double-axis cylinder are fixedly connected to the two fork plates respectively.

[0014] In a preferred embodiment, a slide rail is provided at the inner bottom end of the L-shaped mounting plate along the length direction, and a slider slidably connected to the slide rail is provided at the bottom of the fork plate.

[0015] In a preferred embodiment, a plurality of rollers are rotatably connected to the inner wall of the transverse plate, and the rollers are vertically arranged.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention first adjusts the longitudinal position of the empty pallet so that the back of the empty pallet rests against the inner wall of the transverse plate, and then adjusts the transverse position of the empty pallet so that the side of the empty pallet rests against the inner wall of the side plate, thereby arranging the stack of empty pallets and stacking them neatly. The stack is easy to adjust and will not cause damage to the pallets.

[0019] The fork plate is then moved to the upper and lower positions of the empty pallet, and the empty pallet ...

[0020] 3. The present invention provides a spacing adjustment member, which is a double-axis cylinder. The double-axis cylinder can drive the two fork plates to move away from or closer to each other synchronously, and can be used to adjust the spacing between the two fork plates, so that the fork plates are suitable for arranging empty pallets of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a storage logistics pallet stacking device of the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom structure of a lifting plate of a storage logistics pallet stacking device of the present invention;

[0023] Figure 3 This is a schematic structural diagram of a fork plate and spacing adjustment member of a warehouse logistics pallet stacking arrangement device according to the present invention;

[0024] Figure 4 This is a top view of the interior of a fork plate of a warehouse logistics pallet stacking arrangement device of the present invention;

[0025] Figure 5 This is a top view of the interior of a receiving frame of a storage logistics pallet stacking arrangement device according to the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the fork plate and the receiving frame of a storage logistics pallet stacking arrangement device of the present invention;

[0027] Figure 7 This is a cross-sectional view of the first linkage shaft and the second linkage shaft of a warehouse logistics pallet stacking arrangement device of the present invention.

[0028] In the figure: 1. bottom plate; 2. pallet storage box; 201. horizontal plate; 2011. roller; 202. side plate; 3. top plate; 4. support rod; 5. lifting member; 6. lifting plate; 7. guide slide; 8. horizontal displacement assembly; 9. vertical displacement assembly; 10. L-shaped mounting plate; 11. fork plate; 1101. through slot; 12. dual-axis cylinder; 13. slide rail; 14. slider; 15. moving mechanism; 1501. rotating shaft; 1502. roller; 1503. first sprocket; 1504. chain; 1505. second sprocket; 1506, first motor; 1507, first linkage shaft; 15071, sleeve shaft; 15072, accommodating groove; 15073, telescopic shaft; 15074, limit groove; 15075, limit block; 16, accommodating frame; 17, supporting mechanism; 1701, second motor; 1702, bidirectional screw rod; 1703, bearing seat; 1704, threaded sleeve; 1705, moving plate; 1706, moving rod; 1707, moving wheel; 1708, second linkage shaft; 1709, first bevel gear; 1710, second bevel gear. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] See also Figure 1-7 The present embodiment provides a warehouse logistics pallet stacking arrangement device, comprising a bottom plate 1, a pallet storage box 2 is provided on one side of the top of the bottom plate 1, the pallet storage box 2 comprises a transverse plate 201 and a side plate 202, the transverse plate 201 and the side plate 202 are arranged vertically, and the pallet storage box 2 is used to store pallet stacks, which are formed by stacking multiple empty pallets. A collating device is provided on the other side of the top of the bottom plate 1, and the collating device can be used to neatly stack multiple stacked pallets.

[0032] Among them, see Figure 1 、 Figure 2 and Figure 3In this embodiment, the sorting device includes a top plate 3, and the four corners of the bottom of the top plate 3 are fixedly connected to the bottom plate 1 through a support rod 4. A lifting member 5 is installed at the center of the top of the top plate 3, and the output end of the bottom of the lifting member 5 passes through the top plate 3 and is fixedly connected to the lifting plate 6. Guide slide bars 7 are vertically installed at the four corners of the top of the lifting plate 6. The top of the guide slide bar 7 passes through the top plate 3 and extends outward. A lateral displacement component 8 is installed at the bottom of the lifting plate 6, and a longitudinal displacement component 9 is installed at the bottom of the moving seat of the lateral displacement component 8. An L-shaped mounting plate 10 is installed at the bottom of the moving seat of the longitudinal displacement component 9. Two fork plates 11 are provided on the side of the L-shaped mounting plate 10 close to the pallet storage box 2. The two fork plates 11 are used to insert into the fork groove of the pallet. A moving mechanism 15 is provided in the fork plate 11, and a accommodating frame 16 is provided at the bottom of the fork plate 11. A supporting mechanism 17 is provided in the accommodating frame 16.

[0033] The pallet 202 is moved horizontally by the lifting member 5 so that the empty pallet can be stacked neatly.

[0034] In some embodiments of the present invention, the lateral displacement assembly 8 and the longitudinal displacement assembly 9 use screw slide modules, and the lifting component 5 uses a hydraulic push rod, which are all existing technologies and will not be described in detail here.

[0035] In a preferred example of this application, please refer to Figure 3 、 Figure 5 and Figure 6, the support mechanism 17 includes a second motor 1701, a bidirectional screw rod 1702, a bearing seat 1703, a threaded sleeve 1704, a movable plate 1705, a movable rod 1706 and a movable wheel 1707. The bidirectional screw rod 1702 is arranged at the top of the inner side of the accommodating frame 16. The bidirectional screw rod 1702 is a threaded rod with opposite threads on both sides. Both ends of the bidirectional screw rod 1702 are fixed to the fork plate 11 through the bearing seat 1703. The second motor 1701 is placed in one of the accommodating frames 16 and the output end of the second motor 1701 is connected to one of the The ends of the two bidirectional screw rods 1702 are fixedly connected, and a moving plate 1705 is provided inside the moving plate 1705 below the bidirectional screw rod 1702. The moving plate 1705 is slidably connected to the accommodating frame 16. Moving wheels 1707 are installed on both sides of the bottom of the moving plate 1705. Threaded sleeves 1704 are threadedly sleeved on the threads on both sides of the bidirectional screw rod 1702 with opposite rotation directions. A moving rod 1706 is hinged between each threaded sleeve 1704 and the moving plate 1705. A second linkage assembly is provided between the two bidirectional screw rods 1702.

[0036] Furthermore, the second linkage assembly includes a second linkage shaft 1708, a first bevel gear 1709, and a second bevel gear 1710. The second linkage shaft 1708 is provided between the two accommodating frames 16. Both ends of the second linkage shaft 1708 extend into the two accommodating frames 16 and are connected to the first bevel gear 1709. Each bidirectional screw rod 1702 is fixedly sleeved with a second bevel gear 1710 meshing with the first bevel gear 1709.

[0037] Specifically, when arranging the empty pallet position, the movable fork plate 11 is inserted into the fork groove of the empty pallet located above, and the two-way screw rod 1702 is driven to rotate by the second motor 1701, so that the two threaded sleeves 1704 are synchronously moved away from each other, thereby driving the movable plate 1705 to descend through the moving rod 1706, and through the second linkage component set, when the second motor 1701 drives the current two-way screw rod 1702 to rotate, the second bevel gear 1710 thereon is driven to rotate, and the second bevel gear 1710 drives the meshed first bevel gear 1709 to rotate, and the first bevel gear 1709 is driven to rotate. 709 drives the second linkage shaft 1708 to rotate, the second linkage shaft 1708 drives the first bevel gear 1709 on the other side to rotate, and the first bevel gear 1709 drives the meshing second bevel gear 1710 to rotate, so that the two bidirectional screw rods 1702 rotate synchronously, thereby synchronously moving the movable plates 1705 in the two fork plates 11 downward, so that the four movable wheels 1707 are together against the top of the empty pallet located below. At this time, the two fork plates 11 are driven to move longitudinally by the longitudinal displacement component 9, thereby improving the stability of the longitudinal sorting of the empty pallet and facilitating the longitudinal sorting operation of the empty pallet.

[0038] In a preferred example of this application, please refer to Figure 3 、 Figure 4 and Figure 6 The moving mechanism 15 includes a rotating shaft 1501, a roller 1502, a first sprocket 1503 and a chain 1504. The interior of the fork plate 11 is rotatably connected to multiple rotating shafts 1501 at equal intervals along the length direction. The roller 1502 is fixedly sleeved on the rotating shaft 1501. The first sprocket 1503 is also fixedly sleeved on the rotating shaft 1501. All the first sprockets 1503 in the fork plate 11 are connected by a chain 1504. A first linkage component is provided between the two chains 1504.

[0039] Furthermore, the first linkage assembly includes a first linkage shaft 1507, a second sprocket 1505 and a first motor 1506. The first linkage shaft 1507 is provided on the two fork plates 11. Both ends of the first linkage shaft 1507 extend into the two fork plates 11 and are connected to the second sprockets 1505. The second sprockets 1505 are engaged in the chain 1504. One end of one of the second sprockets 1505 is connected to the first motor 1506. The first motor 1506 is installed in the fork plates 11.

[0040] Furthermore, a through slot 1101 is formed on the top of the fork plate 11, corresponding to the position of the roller 1502. The top of the roller 1502 passes through the through slot 1101 and extends outward. When the fork plate 11 is inserted into the fork slot of the empty pallet, the top of the roller 1502 can abut against the top of the inner side of the fork slot of the empty pallet.

[0041] Specifically, after the empty pallet is arranged in place longitudinally, one of the second sprockets 1505 is driven to rotate by the first motor 1506, and the second sprocket 1505 in the other fork plate 11 is driven to rotate synchronously by the first linkage shaft 1507 when the current second sprocket 1505 rotates, thereby driving the chains 1504 in the two fork plates 11 to rotate synchronously, so that the chain 1504 drives all the first sprockets 1503 to rotate synchronously, and the first sprocket 1503 drives all the rotating shafts 1501 to rotate, and then drives the roller 1502 to rotate, so that the roller 1502 drives the empty pallet to move toward the side plate 202, and presses one side of the empty pallet against the inner wall of the side plate 202 to adjust the horizontal position of the empty pallet.

[0042] In a preferred example of this application, please refer to Figure 1 There are several rollers 2011 rotatably connected to the inner wall of the horizontal plate 201. The rollers 2011 are vertically arranged. When the horizontal position of the empty pallet is adjusted, the back of the empty pallet rolls on the rollers 2011, reducing the friction between the empty pallet and the horizontal plate 201 and improving the convenience of arranging the empty pallet position.

[0043] During use, the distance between the two fork slots of empty pallets of different specifications is different. In order to improve the applicability of the device, please refer to Figure 3In this embodiment, a spacing adjustment member is provided between the two fork plates 11. The spacing adjustment member is a double-axis cylinder 12. The double-axis cylinder 12 is installed on the inner wall of the L-shaped mounting plate 10. The two ends of the double-axis cylinder 12 are respectively fixedly connected to the two fork plates 11. The double-axis cylinder 12 is provided to drive the two fork plates 11 to move away from or closer to each other synchronously, which can be used to adjust the spacing between the two fork plates 11, so that the fork plates 11 are suitable for sorting empty pallets of different specifications.

[0044] In a preferred example of the present application, a slide rail 13 is provided at the inner bottom end of the L-shaped mounting plate 10 along the length direction, and a slider 14 is provided at the bottom of the fork plate 11 which is slidably connected to the slide rail 13. The fork plate 11 and the L-shaped mounting plate 10 are slidably connected through the slider 14 and the slide rail 13, which serves as a limiting guide for the fork plate 11 and improves the stability of the position movement adjustment of the fork plate 11.

[0045] In some embodiments of the present invention, a distance meter may be provided between the opposite surfaces of the two fork plates 11 for accurately measuring the distance between the two fork plates 11 , thereby facilitating accurate adjustment of the positions of the fork plates 11 .

[0046] In a preferred example of the present application, the first linkage shaft 1507 and the second linkage shaft 1708 both include a sleeve shaft 15071 and a telescopic shaft 15073 provided at both ends of the sleeve shaft 15071. The interior of both ends of the sleeve shaft 15071 is provided with a receiving groove 15072. One end of the sleeve shaft 15071 is movably inserted into the receiving groove 15072. A limiting groove 15074 is provided on the inner wall of the receiving groove 15072 along the length direction. A sliding groove 15074 is provided on the outer wall of the sleeve shaft 15071 along the length direction. The limit block 15075 inside, through the set sleeve 15071 and the telescopic shaft 15073 at both ends, makes the first linkage shaft 1507 and the second linkage shaft 1708 adjustable, and through the limit block 15075 in the set limit groove 15074, the telescopic shaft 15073 and the sleeve 15071 will not rotate relative to each other, so that when the distance between the two fork plates 11 is adjusted, the first linkage shaft 1507 and the second linkage shaft 1708 can be adapted to adjust the length to ensure the power transmission effect.

[0047] The control method of the present invention is controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. Moreover, the present invention is used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0048] The implementation principle of a warehouse logistics pallet stacking arrangement device of the present application is as follows: when the warehouse logistics pallet stacking arrangement device is used, when an empty pallet is stacked in the pallet storage box 2 by a forklift, the lifting member 5 drives the lifting plate 6 to descend, and the fork plate 11 is lowered to the empty pallet, and then the two fork plates 11 are moved horizontally by the lateral displacement component 8 to be inserted into the fork slots of the empty pallet, and then the lifting member 5 drives the fork plates 11 to rise a certain height, and the empty pallet is lifted by the fork plates 11, so that the upper empty pallet is separated from the lower empty pallet, and the second motor 1701 drives the bidirectional screw rod 1702 to rotate, so that The two threaded sleeves 1704 are synchronized away from each other, thereby driving the moving plate 1705 to descend through the moving rod 1706, and through the second linkage component provided, when the second motor 1701 drives the current bidirectional screw rod 1702 to rotate, the second bevel gear 1710 thereon is driven to rotate, the second bevel gear 1710 drives the meshed first bevel gear 1709 to rotate, the first bevel gear 1709 drives the second linkage shaft 1708 to rotate, the second linkage shaft 1708 drives the first bevel gear 1709 on the other side to rotate, the first bevel gear 1709 drives the meshed second bevel gear 1710 to rotate, so that The two bidirectional screw rods 1702 rotate synchronously, thereby synchronously moving the moving plates 1705 in the two fork plates 11 downward, so that the four moving wheels 1707 are together against the top of the empty pallet located below, and the two fork plates 11 are driven to move longitudinally by the longitudinal displacement component 9, so that the longitudinal position of the empty pallet can be adjusted, and the back of the empty pallet is pressed against the inner wall of the cross plate 201. After the empty pallet is longitudinally arranged in place, one of the second sprockets 1505 is driven to rotate by the first motor 1506, and the second sprocket in the other fork plate 11 is driven by the first linkage shaft 1507 when the current second sprocket 1505 rotates. The two sprockets 1505 rotate synchronously, thereby driving the chains 1504 in the two fork plates 11 to rotate synchronously, so that the chains 1504 drive all the first sprockets 1503 to rotate synchronously, and the first sprockets 1503 drive all the rotating shafts 1501 to rotate, and then drive the roller 1502 to rotate, so that the roller 1502 drives the empty pallet to move toward the side plate 202, and adjusts the lateral position of the empty pallet, and places one side of the empty pallet against the inner wall of the side plate 202, so that the device can organize the stacked pallets of empty pallets, stack the pallets neatly, and adjust them conveniently without causing damage to the pallets.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A storage logistics pallet stacking device, comprising a bottom plate (1), a pallet storage box (2) provided on one side of the top of the bottom plate (1), the pallet storage box (2) comprising a transverse plate (201) and a side plate (202), the transverse plate (201) and the side plate (202) being arranged vertically, characterized in that: A tidying device is provided on the other side of the top of the bottom plate (1), and the tidying device comprises a top plate (3). The four corners of the bottom of the top plate (3) are fixedly connected to the bottom plate (1) through support rods (4). A lifting member (5) is installed at the center of the top of the top plate (3). The output end of the bottom of the lifting member (5) passes through the top plate (3) and is fixedly connected to the lifting plate (6). Guide slide bars (7) are vertically installed at the four corners of the top of the lifting plate (6). The top end of the guide slide bar (7) passes through the top plate (3) and extends outward. A lateral displacement component (8) is installed at the bottom of the lifting plate (6). ), a longitudinal displacement assembly (9) is installed at the bottom of the movable seat of the transverse displacement assembly (8), an L-shaped mounting plate (10) is installed at the bottom of the movable seat of the longitudinal displacement assembly (9), two fork plates (11) are provided on the side of the L-shaped mounting plate (10) close to the pallet storage box (2), the two fork plates (11) are used to be inserted into the fork grooves of the pallet, a spacing adjustment member is provided between the two fork plates (11), a moving mechanism (15) is provided in the fork plate (11), a receiving frame (16) is provided at the bottom of the fork plate (11), and a supporting mechanism (17) is provided in the receiving frame (16); The support mechanism (17) comprises a second motor (1701), a bidirectional screw rod (1702), a bearing seat (1703), a threaded sleeve (1704), a movable plate (1705), a movable rod (1706) and a movable wheel (1707), wherein the bidirectional screw rod (1702) is arranged at the inner top end of the accommodating frame (16), and both ends of the bidirectional screw rod (1702) are fixed to the fork plate (11) through the bearing seat (1703), the second motor (1701) is placed in one of the accommodating frames (16) and the output end of the second motor (1701) is connected to the accommodating frame (16). The ends of one of the bidirectional screw rods (1702) are fixedly connected, a moving plate (1705) is provided inside the moving plate (1705) and below the bidirectional screw rod (1702), moving wheels (1707) are installed on both sides of the bottom of the moving plate (1705), threaded sleeves (1704) are threadedly sleeved on the threads rotating in opposite directions on both sides of the bidirectional screw rod (1702), a moving rod (1706) is hinged between each threaded sleeve (1704) and the moving plate (1705), and a second linkage assembly is provided between the two bidirectional screw rods (1702); The second linkage assembly includes a second linkage shaft (1708), a first bevel gear (1709) and a second bevel gear (1710). The second linkage shaft (1708) is arranged between the two accommodating frames (16). The two ends of the second linkage shaft (1708) respectively extend into the two accommodating frames (16) and are connected to the first bevel gear (1709). Each of the bidirectional screw rods (1702) is fixedly sleeved with a second bevel gear (1710) meshing with the first bevel gear (1709).

2. The warehousing logistics pallet stacking device according to claim 1, characterized in that: The moving mechanism (15) comprises a rotating shaft (1501), a roller (1502), a first sprocket (1503) and a chain (1504); a plurality of rotating shafts (1501) are rotatably connected at equal intervals along the length direction inside the fork plate (11); the roller (1502) is fixedly sleeved on the rotating shaft (1501); the first sprocket (1503) is also fixedly sleeved on the rotating shaft (1501); all the first sprockets (1503) in the fork plate (11) are connected by a chain (1504); and a first linkage assembly is provided between two chains (1504).

3. The warehousing logistics pallet stacking device according to claim 2, characterized in that: The first linkage assembly comprises a first linkage shaft (1507), a second sprocket (1505) and a first motor (1506); the first linkage shaft (1507) is arranged on the two fork plates (11); the two ends of the first linkage shaft (1507) respectively extend into the two fork plates (11) and are connected to the second sprockets (1505); the second sprockets (1505) are engaged in the chain (1504); one end of one of the second sprockets (1505) is connected to the first motor (1506); and the first motor (1506) is installed in the fork plates (11).

4. The warehousing logistics pallet stacking device according to claim 3, characterized in that: A through slot (1101) corresponding to the position of the roller (1502) is formed on the top of the fork plate (11), and the top end of the roller (1502) passes through the through slot (1101) and extends outward.

5. The warehousing logistics pallet stacking device according to claim 4, characterized in that: The first linkage shaft (1507) and the second linkage shaft (1708) both include a sleeve shaft (15071) and a telescopic shaft (15073) arranged at both ends of the sleeve shaft (15071), and both ends of the sleeve shaft (15071) are internally provided with a receiving groove (15072), one end of the sleeve shaft (15071) is movably inserted into the receiving groove (15072), a limiting groove (15074) is provided on the inner wall of the receiving groove (15072) along the length direction, and a limiting block (15075) is provided on the outer wall of the sleeve shaft (15071) along the length direction and is slidably connected to the limiting groove (15074).

6. The warehousing logistics pallet stacking device according to claim 5, characterized in that: The spacing adjustment member is a double-axis cylinder (12), which is mounted on the inner wall of the L-shaped mounting plate (10), and the two ends of the double-axis cylinder (12) are respectively fixedly connected to the two fork plates (11).

7. The warehousing logistics pallet stacking device according to claim 6, characterized in that: A slide rail (13) is provided at the inner bottom end of the L-shaped mounting plate (10) along the length direction, and a slider (14) slidably connected to the slide rail (13) is provided at the bottom of the fork plate (11).

8. The warehousing logistics pallet stacking device according to claim 7, characterized in that: A plurality of rollers (2011) are rotatably connected to the inner wall of the horizontal plate (201), and the rollers (2011) are vertically arranged.

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