Disk stacking machine structure compatible with different sizes

Abstract

The utility model relates to the technical field of plate stacking machines, and particularly discloses a plate stacking machine structure compatible with different sizes, the plate stacking machine structure comprises a rack and a positioning device, the positioning device comprises a baffle arranged on one side of the rack and an abutting mechanism located on the other side of the rack, and the baffle and the abutting mechanism are oppositely arranged; an opening allowing the tray to enter and exit is formed in one side of the rack, the abutting mechanism comprises a power telescopic part and a driving assembly, the moving direction of the movable end of the power telescopic part faces the baffle, and the driving assembly is arranged on the side, close to the opening, of the rack; the driving assembly can drive the power telescopic piece to be away from the opening so that the tray can enter and exit the rack through the opening. According to the tray stacking device, trays can be stacked more orderly, and the stability of the stacked trays is improved.

Description

Technical Field

[0001] The present application relates to the technical field of disc stacking machines, and in particular to a disc stacking machine structure that is compatible with different sizes. Background Art

[0002] Three-dimensional warehouse conveying systems are installed in non-standard conveying, logistics conveying equipment, and automobile automatic production lines. Pallet stacking machines are often used before and after the goods in the three-dimensional warehouse conveying system are put on the shelves. The purpose is to stack empty pallets and reduce the floor space.

[0003] The pallet stacking machine includes a frame and a fork plate arranged on the frame. There are two fork plates, which are located on both sides of the frame. The two fork plates can lift the pallet by approaching each other; the fork plate can slide in the vertical direction, thereby driving the pallet to rise and fall, and stacking the pallets. During the stacking of pallets, the pallet in the frame needs to be lifted by the fork plate first, and then the pallet outside the frame is transported to the frame by the AGV trolley, and this pallet is placed under the fork plate; then the fork plate moves down, so that the pallet originally on the fork plate is stacked on the top surface of this pallet; then the fork plate lifts the bottom pallet, and then the fork plate moves up to provide space for the next pallet to be stacked.

[0004] During the transportation of pallets, the pallet entering the rack needs to be aligned with the pallet originally in the rack, and this alignment process is usually achieved by the AGV. The AGV first moves to the bottom of the pallet to be stacked outside the rack, and then the AGV lifts the pallet upward; then the AGV drives the pallet into the rack, and then stacks the pallet through the fork plate. Since the initial positions of the pallets to be stacked outside each rack may be different, after the AGV lifts the pallet, the position of the pallet relative to the AGV is different, which makes it easy for the pallets to be placed unevenly during the subsequent vertical stacking process, affecting the stability of the pallets after they are stacked. Utility Model Content

[0005] In order to enable pallets to be stacked more neatly and improve the stability of the pallets after stacking, the present application provides a pallet stacking machine structure that is compatible with different sizes.

[0006] The present application provides a stacking machine structure compatible with different sizes, which adopts the following technical solution:

[0007] A tray stacking machine structure compatible with different sizes includes a frame and a positioning device, the positioning device includes a baffle plate arranged on one side of the frame and a clamping mechanism located on the other side of the frame, the baffle plate and the clamping mechanism are arranged opposite to each other, one side of the frame is provided with an opening for trays to enter and exit, the clamping mechanism includes a power telescopic member and a driving assembly, the moving direction of the active end of the power telescopic member is toward the baffle plate, the driving assembly is arranged on a side of the frame close to the opening, and the driving assembly can drive the power telescopic member away from the opening so that the tray can enter and exit the frame through the opening.

[0008] By adopting the above technical solution, after the AGV trolley sends the pallet into the rack, the movable end of the power telescopic part extends out to push the pallet to move until one side of the pallet and the baffle are against each other. At this time, the pallet can be centered along the width direction of the rack. When the two fork plates subsequently move toward each other, the pallet can be centered along the length direction of the rack, thereby ensuring the neat stacking of the pallets and helping to enhance the stability of the pallets after stacking; the drive component drives the power telescopic part to move to one side of the rack, so that the power telescopic part can avoid the transportation of the pallet, which helps to smoothly proceed with the pallet stacking process.

[0009] Optionally, a buffer assembly is provided at the movable end of the power telescopic member, and the buffer assembly includes a sleeve, a movable rod and a spring. The sleeve is provided at the movable end of the power telescopic member, the movable rod is slidably provided in the sleeve, and the spring is provided between the sleeve and the movable rod.

[0010] By adopting the above technical solution, the buffer assembly can play a buffering role. Therefore, when the tray and the baffle are abutted, as the movable end of the power telescopic part extends, the movable rod can slide into the sleeve, thereby playing a protective role and avoiding damage to the cylinder or the tray.

[0011] Optionally, two power telescopic parts are provided, and the two power telescopic parts are distributed at intervals.

[0012] By adopting the above technical solution, the tray can be better abutted against the baffle, thereby enhancing the positioning effect of the tray.

[0013] Optionally, the driving assembly includes a rotating power member, a connecting shaft, a first screw, a mounting plate and a transmission component, the rotating power member is arranged on the frame, the connecting shaft and the output end of the rotating power member are coaxially connected, the connecting shaft is arranged along the length direction of the frame, two of the first screw and the mounting plate are respectively provided, the first screw and the connecting shaft are parallel, the two first screws are respectively rotatably arranged at the two ends of the frame, the thread rotation directions of the two first screws are opposite, the mounting plate is slidably arranged on the frame, the mounting plate is threadedly connected to the corresponding first screw, each of the power telescopic members is arranged on the corresponding mounting plate, the transmission component is provided with two groups, and are respectively located at the two ends of the connecting shaft, and the transmission component is used to transmit the rotation of the connecting shaft to the corresponding first screw.

[0014] By adopting the above technical solution, after the rotating power part is started, the connecting shaft can be rotated, and the connecting shaft drives the first screw to rotate through the transmission part, and the first screw drives the mounting plate to slide, so that the two mounting plates move in opposite directions, and the power telescopic parts on the two mounting plates move in opposite directions, so as to avoid the transportation of the pallet; therefore, one power source can drive the two power telescopic parts to move, which helps to reduce costs and save energy.

[0015] Optionally, the transmission component includes a driving sprocket, a driven sprocket and a chain, the driving sprocket is coaxially arranged on the connecting shaft, the driven sprocket is coaxially arranged on the corresponding first screw, and the chain is wound between the driving sprocket and the driven sprocket.

[0016] By adopting the above technical solution, the connecting shaft can drive the driving sprocket to rotate when it rotates, and the driving sprocket drives the driven sprocket to rotate through the chain, and the driven sprocket drives the corresponding first screw to rotate; the structure of the transmission component is simple, stable and reliable.

[0017] Optionally, the baffle is slidably arranged on the frame along the width direction of the frame, a second screw is arranged on the frame along its own width direction, the second screw is threadedly connected to the frame, and the second screw is rotatably connected to the baffle.

[0018] By adopting the above technical solution, the second screw can be rotated to drive the baffle to slide, thereby adjusting the position of the baffle so that pallets of different widths can be centered in the width direction after abutting against the baffle. The device can be suitable for pallets of different sizes and has stronger applicability.

[0019] Optionally, the frame is provided with scale bars along its width direction.

[0020] By adopting the above technical solution, it is convenient to observe the position of the baffle, thereby facilitating the adjustment of the position of the baffle.

[0021] Optionally, the frame is also provided with an auxiliary positioning mechanism, which includes a rack, a gear, a third screw and a push plate, the rack being arranged at the movable end of the power telescopic member, the length direction of the rack being parallel to the length direction of the power telescopic member, the gear being rotatably arranged on the frame, the rotation axis of the gear being arranged along the length direction of the frame, the gear being used to mesh with the rack, the third screw being rotatably connected to the frame, the gear being coaxially arranged on the third screw, the push plate being slidably arranged on the frame along the length direction of the frame, and the push plate and the third screw being threadedly connected.

[0022] By adopting the above technical solution, when the movable end of the power telescopic part extends outward, the movable end can also drive the rack to slide. When the rack is engaged with the gear, the rack can drive the gear to rotate, and the gear drives the third screw to rotate. The third screw causes the push plate to slide, thereby causing the two push plates to slide toward each other until the two push plates respectively abut against the two ends of the pallet, so that the pallet is in the center along the length direction of the frame, so that the pallets can be stacked more neatly.

[0023] Optionally, an elastic pad is provided at one end of the push plate close to the inner side of the frame.

[0024] By adopting the above technical solution, the elastic pad can play a role of buffering and protection, protecting the tray and the push plate and reducing the possibility of damage.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When the pallet is transported into the rack, the movable end of the power telescopic member extends to push the pallet to move so that one side of the pallet abuts against the baffle, so that the pallet is centered along the width of the rack, thereby facilitating the neat stacking of the pallets in the rack and helping to enhance the stability of the pallets after stacking.

[0027] 2. When the movable end of the power telescopic member is extended, it can also drive the rack to slide, and the rack drives the gear to rotate, so that the third screw rotates, and the third screw drives the push plate to slide, so that the two push plates move towards each other, so as to realize the centering of the pallet along the length direction of the rack; because the fork plate has not put down the pallet originally located in the rack at this time, it is easier for the push plate to push the bottom pallet to move, so as to complete the adjustment of the pallet position. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the present application for demonstrating the placement position of a tray;

[0029] Figure 2 is a schematic structural diagram of the first power device in an embodiment of the present application;

[0030] Figure 3is a schematic diagram of the structure of the second power device in an embodiment of the present application;

[0031] Figure 4 is a schematic diagram of the structure of the driving component in an embodiment of the present application;

[0032] Figure 5 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0033] Figure 6 It is a schematic diagram of the structure of the baffle in the embodiment of the present application.

[0034] Figure numerals: 1, frame; 2, baffle; 21, guide rod; 211, scale bar; 3, power telescopic member; 31, support rod; 4, driving assembly; 41, rotating power member; 42, connecting shaft; 43, first screw rod; 44, mounting plate; 45, transmission component; 451, driving sprocket; 452, driven sprocket; 453, chain; 5, buffer assembly; 51, sleeve; 52, movable rod; 521, support plate; 6, second screw rod; 7, auxiliary positioning Mechanism; 71, rack; 72, gear; 73, third screw; 74, push plate; 8, mounting frame; 81, fork plate; 811, limit bar; 9, first power device; 91, first motor; 92, rotating rod; 93, first sprocket; 94, second sprocket; 95, first chain; 96, third sprocket; 97, fourth sprocket; 98, second chain; 10, second power device; 101, second motor; 102, eccentric rod; 11, AGV trolley. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The present application embodiment discloses a stacking machine structure compatible with different sizes. Figure 1 and Figure 2 The structure of the stacking machine compatible with different sizes includes a frame 1, and the height direction of the frame 1 is vertically arranged. An exit for the pallet to enter and exit is opened on one side of the frame 1. A mounting frame 8 is slidably arranged on the frame 1 in the vertical direction, and two mounting frames 8 are arranged, and are respectively located at the two ends of the length direction of the frame 1. A fork plate 81 is slidably arranged on each mounting frame 8 along the length direction of the frame 1, and the sliding directions of the two fork plates 81 are opposite. Therefore, after placing the pallet inside the frame 1, the two fork plates 81 move toward the side close to each other to lift the bottom of the pallet; then the fork plates 81 move upward to drive the pallet to move up for stacking the pallet.

[0037] Reference Figure 2The frame 1 is provided with a first power device 9 for driving the mounting frame 8 to slide in the vertical direction. The first power device 9 includes a first motor 91, which is fixedly connected to the top wall of the frame 1, and the output shaft of the first motor 91 is arranged along the length direction of the frame 1. A rotating rod 92 is arranged on the top wall of the frame 1, which is arranged along the length direction of the frame 1, and the rotating rod 92 is arranged on the frame 1 to rotate around its own axis; a first sprocket 93 is coaxially fixedly connected to the output shaft of the first motor 91, a second sprocket 94 is coaxially fixedly connected to the rotating rod 92, and a first chain 95 is arranged between the first sprocket 93 and the second sprocket 94; therefore, the first motor 91 can drive the rotating rod 92 to rotate after being started.

[0038] Transmission mechanisms are provided at both ends of the rotating rod 92, and the two transmission mechanisms correspond to the two mounting frames 8 respectively. The transmission mechanism includes a third sprocket 96, a fourth sprocket 97 and a second chain 98. The third sprocket 96 is coaxially fixedly connected to the end of the rotating rod 92, the fourth sprocket 97 is rotatably arranged on the bottom wall of the frame 1, and the second chain 98 is wound between the third sprocket 96 and the fourth sprocket 97. A connecting piece is fixedly connected to the second chain 98, and the connecting piece is connected to the corresponding mounting frame 8; therefore, when the rotating rod 92 rotates, the second chain 98 can be driven to operate, and the second chain 98 drives the corresponding mounting frame 8 to slide in the vertical direction through the connecting piece.

[0039] Reference Figure 3 , each mounting frame 8 is provided with a second power device 10 for driving the fork plate 81 to slide along the length direction of the frame 1, and the second power device 10 includes a second motor 101 and an eccentric rod 102. The second motor 101 is fixedly connected to the mounting frame 8 by bolts, and the output shaft of the second motor 101 is vertically downward. The axis of the eccentric rod 102 is vertically arranged, and the eccentric rod 102 is fixedly connected to the output shaft of the second motor 101; the eccentric rod 102 and the output shaft of the second motor 101 are not on the same straight line. A limit strip 811 is welded on the top surface of the fork plate 81, and the limit strip 811 is arranged along the width direction of the frame 1; two limit strips 811 are arranged, and the two limit strips 811 are arranged at intervals; the spacing between the two limit strips 811 is the same as the diameter of the eccentric rod 102, and the bottom end of the eccentric rod 102 is located between the two limit strips 811. Therefore, after the second motor 101 is started, the eccentric rod 102 can be driven to rotate, and the rotation path of the eccentric rod 102 is a circle. Since the sliding direction of the fork plate 81 is restricted, the eccentric rod 102 can drive the fork plate 81 to slide when it rotates. The cooperation between the second motor 101 and the eccentric rod 102 can reduce the occupied space of the device, and is more convenient during installation.

[0040] Reference Figure 4, a positioning device is also provided on the frame 1, and the positioning device includes a baffle 2 and a clamping mechanism. The baffle 2 is provided on one side of the frame 1, and the baffle 2 is a rectangular plate, and the plate surface of the baffle 2 is perpendicular to the width direction of the frame 1. The clamping mechanism is provided on the side of the frame 1 away from the baffle 2, and the clamping mechanism includes a power telescopic member 3 and a driving assembly 4. Two power telescopic members 3 are provided, and are spaced apart at both ends of the length direction of the frame 1; the power telescopic member 3 is a cylinder, and the piston rod of the power telescopic member 3 faces the side close to the baffle 2, and the telescopic direction of the piston rod of the power telescopic member 3 is set along the width direction of the frame 1. Therefore, when the pallet is moved into the frame 1, the piston rod of the power telescopic member 3 extends out to push the pallet to move, and the position of the pallet can be adjusted so that one side of the pallet is against the baffle 2, so that the pallet is in a central position along the width direction of the frame 1.

[0041] Reference Figure 4 and Figure 5 The driving assembly 4 includes a rotating power member 41, a connecting shaft 42, a first screw rod 43, a mounting plate 44 and a transmission component 45. The rotating power member 41 is a motor, which is fixedly connected to the top wall of the frame 1 by bolts, and the output shaft of the rotating power member 41 is arranged along the length direction of the frame 1. The connecting shaft 42 is coaxially fixedly connected to the output shaft of the rotating power member 41. There are two first screw rods 43, which are respectively located at the two ends of the length direction of the bottom of the frame 1; the two first screw rods 43 are coaxially arranged, both parallel to the length direction of the frame 1, and the first screw rods 43 are rotated around their own axes and arranged on the frame 1; the thread rotation directions of the two first screw rods 43 are opposite. There are two mounting plates 44, which correspond to the two first screw rods 43 respectively; the mounting plate 44 is slidably arranged on the frame 1 along the length direction of the frame 1, and the mounting plate 44 is threadedly connected to the corresponding first screw rod 43; the two power telescopic members 3 are respectively fixedly connected to the two mounting plates 44. There are two groups of transmission components 45 , corresponding to the two first screw rods 43 respectively.

[0042] The transmission component 45 includes a driving sprocket 451, a driven sprocket 452 and a chain 453. The driving sprocket 451 is coaxially fixedly connected to the end of the connecting shaft 42, and the driven sprocket 452 is coaxially fixedly connected to the corresponding first screw rod 43; the chain 453 is wound between the driving sprocket 451 and the driven sprocket 452. Therefore, after the rotating power member 41 is started, it can drive the connecting shaft 42 to rotate, the connecting shaft 42 drives the driving sprocket 451 to rotate, the driving sprocket 451 drives the driven sprocket 452 to rotate through the chain 453, the driven sprocket 452 drives the corresponding first screw rod 43 to rotate, and the first screw rod 43 drives the mounting plate 44 to slide, so that the power telescopic members 3 on the two mounting plates 44 slide in the opposite direction; when the two power telescopic members 3 slide toward the side away from each other, the power telescopic members 3 can be moved to the outside of the pallet moving path, thereby avoiding the setting of the power telescopic member 3 affecting the transportation process of the pallet.

[0043] In order to protect the tray and the power telescopic member 3, refer to Figure 5 , a buffer assembly 5 is provided at the end of the piston rod of the power telescopic member 3, and the buffer assembly 5 includes a sleeve 51, a movable rod 52 and a spring. The sleeve 51 is fixedly connected to the end of the piston rod of the power telescopic member 3, and the sleeve 51 is a cylinder, and the sleeve 51 is arranged along the length direction of the power telescopic member 3. The movable rod 52 is a round rod, and the diameter of the movable rod 52 is the same as the inner diameter of the sleeve 51, and one end of the movable rod 52 is slidably arranged inside the sleeve 51. The spring is located inside the sleeve 51, and the spring is connected between the end of the movable rod 52 and the inner wall of the sleeve 51. Therefore, the spring can play a buffering role to ensure the normal use of the tray and the power telescopic member 3. The end of the movable rod 52 away from the spring is fixedly connected with a support plate 521, and the support plate 521 can increase the contact area between the movable rod 52 and the tray, thereby better promoting the movement of the tray.

[0044] In order to adapt the device to pallets of different widths, refer to Figure 6 , the baffle 2 is slidably arranged on the frame 1 along the width direction of the frame 1. A guide rod 21 is vertically fixedly connected to one side of the baffle 2, and a through hole is provided on the frame 1, and the guide rod 21 is slidably arranged in the through hole. A second screw rod 6 is also arranged on the frame 1, and the second screw rod 6 is perpendicular to the baffle 2; the second screw rod 6 is threadedly connected to the frame 1, and the end of the second screw rod 6 is rotatably connected to the baffle 2; therefore, under the restriction of the guide rod 21, the baffle 2 can be slid by rotating the screw rod, thereby adjusting the baffle 2 to a desired position.

[0045] Furthermore, a scale bar 211 is provided on the guide rod 21 along its length direction, so that the position of the baffle 2 is easily observed.

[0046] In order to facilitate the adjustment of the tray to the center position along the length direction of the rack 1, refer to Figure 4 and Figure 5, an auxiliary positioning mechanism 7 is provided on the frame 1, and the auxiliary positioning mechanism 7 is provided with two groups, which are respectively located at the two ends of the length direction of the frame 1. The auxiliary positioning mechanism 7 includes a rack 71, a gear 72, a third screw 73 and a push plate 74. The sleeve 51 at the end of the piston rod of the power telescopic member 3 is fixedly connected with the support rod 31, and the rack 71 is fixedly connected to the end of the support rod 31; the rack 71 is arranged along the width direction of the frame 1, and the teeth of the rack 71 face upward. The gear 72 is rotatably arranged at the bottom of the frame 1, and the rotation axis of the gear 72 is arranged along the length direction of the frame 1; when the power telescopic member 3 is located on the moving path of the tray, the gear 72 is located on the extension path of the rack 71. The third screw 73 is arranged along the length direction of the frame 1, and the third screw 73 is rotatably arranged on the frame 1 around its own axis, and the third screw 73 and the gear 72 are coaxially fixedly connected. The push plate 74 is slidably disposed at the bottom of the frame 1 along the length direction of the frame 1 , and the push plate 74 is threadedly connected to one end of the third screw rod 73 close to the inside of the frame 1 .

[0047] When the rack 71 and the gear 72 are meshed, the sliding of the rack 71 can drive the gear 72 to rotate, and the gear 72 drives the third screw 73 to rotate, and the third screw 73 drives the push plate 74 to slide, so that the push plates 74 on both sides slide toward the side close to each other until the two push plates 74 respectively abut against the two ends of the tray in the length direction, so that the tray is centered along the length direction of the frame 1.

[0048] It should be noted that, during the extension of the piston rod of the power telescopic member 3, the movable rod 52 at the end of the power telescopic member 3 first pushes the pallet to abut against the baffle 2, completing the centering of the pallet in the width direction; then the push plate 74 begins to contact the end of the pallet until the two push plates 74 respectively abut against the two ends of the pallet, completing the centering of the pallet in the length direction, thereby ensuring the positioning effect of the pallet.

[0049] Furthermore, elastic pads are bonded to the sides of the two push plates 74 that are close to each other. The elastic pads are made of rubber and thus can play a buffering role.

[0050] The implementation principle of a pallet stacking machine structure compatible with different sizes in an embodiment of the present application is as follows: in the initial state, the two power telescopic parts 3 are respectively located on both sides of the pallet moving path; when stacking the pallets, the AGV trolley 11 first moves to the bottom of the pallet position and lifts the pallet; then the AGV trolley 11 transports the pallet to the rack 1.

[0051] Then the rotating power part 41 is started, so that the connecting shaft 42 rotates, and the connecting shaft 42 drives the driving sprocket 451 to rotate, and the driving sprocket 451 drives the driven sprocket 452 to rotate through the chain 453, and the driven sprocket 452 drives the corresponding first screw 43 to rotate, and the first screw 43 drives the mounting plate 44 to slide, so that the power telescopic parts 3 on the two mounting plates 44 move toward the side close to each other; after the power telescopic parts 3 stop moving, the gear 72 is located in the extension direction of the corresponding rack 71.

[0052] Then the piston rod of the power telescopic member 3 is extended, so that the sleeve 51 and the movable rod 52 are moved, and the movable rod 52 pushes the pallet to move until one side of the pallet abuts against the baffle 2, so that the pallet is centered along the width direction of the frame 1; when the piston rod of the power telescopic member 3 is extended, the rack 71 can also be driven to slide through the support rod 31. When the rack 71 is engaged with the gear 72, the sliding of the rack 71 drives the gear 72 to rotate, and the gear 72 drives the third screw 73 to rotate, and the third screw 73 drives the push plate 74 to slide, so that the two push plates 74 slide toward the side close to each other until the two push plates 74 respectively abut against the two ends of the pallet, completing the centering of the pallet along the length direction of the frame 1; thereby, the pallet sent into the frame 1 is adjusted to the desired position, completing the positioning process.

[0053] Then, the piston rod of the power telescopic member 3 is retracted, causing the two push plates 74 to slide toward the side away from each other, and causing the movable rod 52 to slide toward the side away from the pallet, and the movable rod 52 gradually disengages from the contact with the pallet; then, the output shaft of the rotating power member 41 rotates in the opposite direction, causing the two power telescopic members 3 to slide toward the side away from each other, completing the resetting of the positioning device, facilitating the smooth progress of the next pallet stacking process.

[0054] After the bottom pallet is positioned, the pallet stacking begins. The mounting frame 8 moves downward, driving the fork plate 81 downward, so that the pallets stacked on the fork plate 81 move downward until the pallet above the fork plate 81 is stacked on the top surface of the pallet after positioning. At this time, multiple pallets can be neatly stacked in the vertical direction; then the two fork plates 81 slide toward the side away from each other, and then the mounting frame 8 drives the fork plate 81 downward, and the fork plate 81 moves to the bottom of the pallet after positioning, and then the two fork plates 81 slide toward the side close to each other until the two fork plates 81 are respectively pressed against the two ends of the pallet; then the mounting frame 8 slides upward again, driving the stacked pallets to move upward through the fork plate 81, leaving space at the bottom of the rack 1 for the next pallet to slide in, thereby completing the pallet stacking process.

[0055] The above are optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stacking machine structure compatible with different sizes, characterized by: The invention comprises a frame (1) and a positioning device, wherein the positioning device comprises a baffle (2) arranged on one side of the frame (1) and a pressing mechanism located on the other side of the frame (1), wherein the baffle (2) and the pressing mechanism are arranged opposite to each other, and an opening for a tray to enter and exit is provided on one side of the frame (1), wherein the pressing mechanism comprises a power telescopic member (3) and a driving assembly (4), wherein the moving direction of the active end of the power telescopic member (3) is toward the baffle (2), and the driving assembly (4) is arranged on a side of the frame (1) close to the opening, and wherein the driving assembly (4) can drive the power telescopic member (3) away from the opening so that the tray can enter and exit the frame (1) through the opening.

2. The stacking machine structure compatible with different sizes according to claim 1, characterized in that: The movable end of the power telescopic member (3) is provided with a buffer assembly (5), the buffer assembly (5) comprising a sleeve (51), a movable rod (52) and a spring, the sleeve (51) being provided at the movable end of the power telescopic member (3), the movable rod (52) being slidably provided in the sleeve (51), and the spring being provided between the sleeve (51) and the movable rod (52).

3. The stacking machine structure compatible with different sizes according to claim 1, characterized in that: Two power telescopic parts (3) are provided, and the two power telescopic parts (3) are spaced apart.

4. The stacking machine structure compatible with different sizes according to claim 3, characterized in that: The driving assembly (4) comprises a rotating power member (41), a connecting shaft (42), a first screw rod (43), a mounting plate (44) and a transmission component (45); the rotating power member (41) is arranged on the frame (1); the connecting shaft (42) and the output end of the rotating power member (41) are coaxially connected; the connecting shaft (42) is arranged along the length direction of the frame (1); two first screw rods (43) and two mounting plates (44) are provided; the first screw rods (43) and the connecting shaft (42) are parallel to each other; the two first screw rods (43) and the mounting plate (44) are parallel to each other; 3) are rotatably arranged at two ends of the frame (1), the threads of the two first screw rods (43) are in opposite directions, the mounting plate (44) is slidably arranged on the frame (1), the mounting plate (44) and the corresponding first screw rod (43) are threadedly connected, each of the power telescopic members (3) is arranged on the corresponding mounting plate (44), two groups of the transmission components (45) are arranged, and are respectively located at two ends of the connecting shaft (42), and the transmission components (45) are used to transmit the rotation of the connecting shaft (42) to the corresponding first screw rod (43).

5. The stacking machine structure compatible with different sizes according to claim 4, characterized in that: The transmission component (45) comprises a driving sprocket (451), a driven sprocket (452) and a chain (453); the driving sprocket (451) is coaxially arranged on the connecting shaft (42); the driven sprocket (452) is coaxially arranged on the corresponding first screw rod (43); and the chain (453) is wound between the driving sprocket (451) and the driven sprocket (452).

6. The stacking machine structure compatible with different sizes according to claim 1, characterized in that: The baffle (2) is slidably arranged on the frame (1) along the width direction of the frame (1); a second screw rod (6) is arranged on the frame (1) along its width direction; the second screw rod (6) is threadedly connected to the frame (1); and the second screw rod (6) is rotatably connected to the baffle (2).

7. The structure of a stacking machine compatible with different sizes according to claim 6, characterized in that: The frame (1) is provided with a scale bar (211) along its width direction.

8. The stacking machine structure compatible with different sizes according to claim 1, characterized in that: The frame (1) is further provided with an auxiliary positioning mechanism (7), the auxiliary positioning mechanism (7) comprising a rack (71), a gear (72), a third screw (73) and a push plate (74); the rack (71) is provided at the movable end of the power telescopic member (3); the length direction of the rack (71) is parallel to the length direction of the power telescopic member (3); the gear (72) is rotatably provided on the frame (1); the rotation axis of the gear (72) is provided along the length direction of the frame (1); the gear (72) is used to mesh with the rack (71); the third screw (73) is rotatably connected to the frame (1); the gear (72) is coaxially provided on the third screw (73); the push plate (74) is slidably provided on the frame (1) along the length direction of the frame (1); the push plate (74) and the third screw (73) are threadedly connected.

9. The stacking machine structure compatible with different sizes according to claim 8, characterized in that: An elastic pad is provided at one end of the push plate (74) close to the inner side of the frame (1).

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