Logistics loading and transporting car loader with precise positioning structure

Abstract

The invention relates to the technical field of logistics loading machines, in particular to a logistics loading and transporting loading machine with a precise positioning structure. The device comprises a machine body, a moving rail is arranged at the end of the machine body, a base frame is arranged on the surface of the moving rail, the base frame moves on the surface of the moving rail in the vertical direction, a supporting base is arranged at the end of a moving arm, and a pressing assembly is arranged below the supporting base. A pressing disc is pressed to drive a sliding rod to slide on the inner wall of a column casing, the sliding rod drives a wedge block at the top of a moving rod to extrude the bottom of a reset spring when moving, a rack vertically moves to drive a fixed gear to rotate, and a lead screw arranged at the end of the fixed gear rotates; and the moving arm drives the supporting seat to move in the separated direction, the box placed on the surface of the roller rod is automatically unloaded and loaded, and potential safety hazards are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics loading machines, and in particular to a logistics loading machine with a precise positioning structure. Background Art

[0002] With the improvement of modern mechanization and the popularization of unmanned factories and smart factories, more and more companies use loading equipment to stack goods into carriages or containers to improve the efficiency of stacking and loading goods and reduce labor costs.

[0003] There are many existing technologies for loading machine devices, such as: Chinese patent publication number CN108455314A discloses a logistics loader, including a horizontal hollow box, a mounting seat, a lifting hydraulic cylinder, and a logistics plate, wherein each corner of the bottom of the logistics plate is respectively installed with a roller in contact with the top of the horizontal hollow box; a guide rail is fixed to the bottom of the inner cavity of the horizontal hollow box, a horizontal rack is fixed to the inner cavity of the horizontal hollow box along the horizontal direction, a motor is arranged in the inner cavity of the horizontal hollow box, a gear meshing with the horizontal rack is fixed on the output shaft of the motor, a motor seat is fixed to the bottom of the motor, and a guide wheel slidably connected to the guide rail is fixed to the bottom of the motor seat; a connecting shaft extending to the outside of the horizontal hollow box is fixed to the top of the gear, a long groove for the connecting shaft to slide is arranged on the top of the horizontal hollow box, a bearing is fixed to the bottom of the horizontal hollow box, and the top end of the connecting shaft is connected to the inner ring of the bearing.

[0004] At present, when traditional loaders are used and boxes are loaded by forklifts, the boxes are placed on the fork arms in an offset position, which causes the boxes to shift in position during stacking. The operators are required to make secondary adjustments to the boxes, resulting in low loading efficiency. At the same time, during the stacking and loading process of the boxes, the boxes under the boxes to be loaded are subjected to uneven pressure during the stacking process, which can easily cause the entire stack of boxes to collapse, resulting in damage to the objects inside the boxes.

[0005] In view of this, we propose a logistics loading and unloading machine with a precise positioning structure. Summary of the invention

[0006] The purpose of the present invention is to provide a logistics loading and unloading machine with a precise positioning structure to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the object of the present invention is to provide a logistics loading and unloading machine with a precise positioning structure, including a machine body, a movable rail is provided at the end of the machine body, a base frame is provided on the surface of the movable rail, the base frame moves on the surface of the movable rail in a vertical direction, a back plate is provided on the side of the base frame close to the movable rail, a screw rod is provided inside the base frame, the thread on the surface of the screw rod is symmetrical, a fixed gear is provided at the center of the screw rod, movable arms are provided on both sides of the surface of the screw rod, a plurality of fixing holes are opened at the end of the movable arm, a support seat is provided at the fixing hole, a support seat is provided at the end of the movable arm, a pressing component is provided below the support seat, the pressing component is used to place the boxes to be stacked, and fix the boxes to be stacked below during the placement process, position adjustment components are provided on both sides of the base frame, the position adjustment component is used to push and position the boxes placed on the surface of the support seat, so that the boxes are at the center of the roller rod surface, and a limit component is provided above the pressing component, the limit component is used to automatically press the top of the box body, so that the box body is subjected to a stable force during the moving loading process.

[0008] As a further improvement of the technical solution, a groove is opened on the surface of the support seat, and roller rods are arranged in the groove, and the roller rods are arranged in a row.

[0009] As a further improvement of the present technical solution, the pressing assembly includes a column tube provided at the bottom of the back plate, the column tube is symmetrically arranged, a sliding rod is slidingly provided on the inner wall of the column tube, a pressure plate is provided at the end of the sliding rod, a compression spring is provided between the column tube and the sliding rod, and the pressure plate is pressed against the surface of the box below the box to be stacked.

[0010] As a further improvement of the present technical solution, a through groove is provided on the side wall of the column, a moving rod is provided between the ends of the sliding rod, a hemispherical block is provided at the bottom of the moving rod, and the movement of the sliding rod drives the moving rod to slide on the inner wall of the column. When the moving rod moves, the compression spring is squeezed, and a wedge-shaped block is provided on the top of the compression spring.

[0011] As a further improvement of the technical solution, a rack is provided above the wedge block, and the rack is meshed with the side of the fixed gear. When the rack is pushed vertically upward, the fixed gear is driven to rotate. A reset spring is provided between the rack and the base frame.

[0012] As a further improvement of the technical solution, the position adjustment assembly includes a rotating arm arranged on the outer wall of the base frame, a cylinder is provided at the end of the rotating arm, a piston rod at the end of the cylinder passes through the rotating arm and a push plate is provided at the end.

[0013] As a further improvement of the technical solution, a servo motor is provided on the side wall of the back plate, a worm is provided at the output end of the servo motor, a worm wheel is provided below the worm, a rotating shaft is provided on both sides of the worm wheel, and a transmission belt is provided between the rotating shaft and the rotating arm.

[0014] As a further improvement of the present technical solution, the limiting assembly includes an extension plate arranged above the roller rod, a support column is provided at the bottom of the extension plate, a pressure rod is slidably provided on the inner wall of the support column, and an elastic member is provided between the support column and the pressure rod. In a natural state, the height of the pressure rod is lower than the height of a shipping box placed on the surface of the support seat.

[0015] As a further improvement of the present technical solution, a winding stick shaft is provided on the surface of the extension plate, a pull rope is provided between the winding stick shaft and the pressure rod, a ratchet is provided on one side of the winding stick shaft, the end of the winding stick shaft passes through the ratchet and a sub-gear is provided on the end, a rotating motor is provided between the extension plates, and a main gear is provided at the output end of the rotating motor. The rotation of the main gear drives the meshing sub-gears on both sides of the top to rotate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the logistics loading and loader with precise positioning structure, the box to be loaded is placed on the surface of the support seat, and the box to be loaded is pushed to slide on the surface of the roller rod. The piston rod at the end of the cylinder drives the push plate to push the box, so that the box is placed horizontally on the surface of the roller rod. In the process of stacking the boxes, the box below is prevented from falling due to uneven force, thereby preventing the items in the box from being damaged by collision, thereby improving the safety of box loading.

[0017] 2. In the logistics loading and loader with precise positioning structure, when the machine body drives the base frame to move horizontally for loading, the pressure plate squeezes the end of the box to be placed under the box, so that the box below always keeps a stable state. The pressure plate drives the slide bar to slide on the inner wall of the column when it is under pressure. When the slide bar moves, it drives the wedge block on the top of the moving rod to squeeze the bottom of the reset spring, so that the rack moves vertically and drives the fixed gear to rotate, so that the screw rod at the end of the fixed gear rotates, and the moving arm drives the support seat to move in separate directions, and automatically unloads and loads the box placed on the surface of the roller bar, thereby improving the convenience of loading, keeping the stacked boxes stable during loading, and avoiding safety hazards.

[0018] 3. In the logistics loading and loader with precise positioning structure, the pressure rod is always pressed on the top of the box to be loaded by the force of the elastic part, and the top of the box is pressed to put the box in a limited position, so as to avoid the box to be loaded moving on the surface of the roller rod and causing position deviation, which requires secondary adjustment of the stacking position, thereby improving the efficiency of loading and stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the base frame structure of the present invention; Figure 3It is a schematic diagram of the support base structure of the present invention; Figure 4 It is a schematic diagram of the structure of the pressing assembly of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of point A; Figure 6 It is a schematic diagram of the structure of the position adjustment component of the present invention; Figure 7 It is a cross-sectional view of the limiting component of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of point A.

[0020] The meaning of each number in the figure is: 100, body; 101, moving rail; 200, base frame; 201, screw rod; 202, moving arm; 203, support seat; 204, roller rod; 205, back plate; 206, fixed gear; 300, pressing assembly; 301, column; 302, slide bar; 303, pressure plate; 304, compression spring; 305, moving rod; 306, wedge block; 307, rack; 308, return spring; 400, position adjustment assembly; 401, servo motor; 402, worm; 403, worm wheel; 404, rotating shaft; 405, transmission belt; 406, rotating arm; 407, cylinder; 408, push plate; 500, limit assembly; 501, support column; 502, pressure rod; 503, elastic member; 504, winding rod shaft; 505, pull rope; 506, rotating motor; 507, main gear; 508, sub gear; 509, ratchet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] The purpose of this embodiment is to provide a logistics loading and unloading machine with a precise positioning structure. Figure 1-Figure 8 As shown, the machine body 100 includes a moving rail 101 at the end of the machine body 100, a base frame 200 is provided on the surface of the moving rail 101, the base frame 200 moves on the surface of the moving rail 101 in a vertical direction, a back plate 205 is provided on the side of the base frame 200 close to the moving rail 101, a screw rod 201 is provided inside the base frame 200, the thread on the surface of the screw rod 201 is symmetrical, a fixed gear 206 is provided at the center of the screw rod 201, moving arms 202 are provided on both sides of the surface of the screw rod 201, a plurality of fixing holes are opened at the end of the moving arm 202, a support seat 203 is provided at the fixing hole, and a support is provided at the end of the moving arm 202 A support seat 203 is provided with a pressing assembly 300 below the support seat 203. The pressing assembly 300 is used to place the boxes to be stacked and fix the boxes below the boxes to be stacked during the placement process. Position adjustment assemblies 400 are provided on both sides of the base frame 200. The position adjustment assemblies 400 are used to push and position the boxes placed on the surface of the support seat 203 so that the boxes are at the center of the surface of the roller rod 204. A limiting assembly 500 is provided above the pressing assembly 300. The limiting assembly 500 is used to automatically press the top of the box so that the force on the box remains stable during the moving and loading process.

[0024] The improvement of this embodiment is that when the frame 200 is driven by the machine body 100 to move horizontally for loading, the pressure plate 303 squeezes the end of the box to be placed under the box, so that the box below always remains in a stable state. The pressure on the pressure plate 303 drives the slide bar 302 to slide on the inner wall of the column 301. When the slide bar 302 moves, it drives the wedge block 306 on the top of the moving rod 305 to squeeze the bottom of the return spring 308, so that the rack 307 moves vertically and drives the fixed gear 206 to rotate, so that the screw rod 201 provided at the end of the fixed gear 206 rotates, so that the moving arm 202 drives the support seat 203 to move in separate directions, and automatically unloads and loads the box placed on the surface of the roller rod 204, thereby improving the convenience of loading, maintaining the stability of the stacked boxes during loading, and avoiding safety hazards.

[0025] During the logistics loading process of the box, since the bottom of the box fits against the bottom of the support seat 203, under the action of gravity, the box and the surface of the support seat 203 are subjected to greater friction during the unloading process of the box, which makes it inconvenient to unload the box. Therefore, a groove is opened on the surface of the support seat 203, and a roller rod 204 is arranged in the groove. The roller rod 204 is arranged in a row. By placing the box on the surface of the roller rod 204, when the box is moved to the placement position, the roller rod 204 is moved to both sides to make the box slide from the surface of the roller rod 204 to the surface of the box to be stacked, thereby facilitating the rapid transportation of the box.

[0026] The pressing plate 303 is pressed against the bottom of the box body to be stacked, and the pressing plate 303 is pressed against the bottom of the box body to be stacked.

[0027] In order to improve the loading efficiency during the cargo loading process, a through groove is opened on the side wall of the column 301, and a moving rod 305 is provided between the ends of the sliding rod 302. The movement of the sliding rod 302 drives the moving rod 305 to slide on the inner wall of the column 301. When the moving rod 305 moves, it squeezes the compression spring 304. A wedge block 306 is provided on the top of the compression spring 304, and a rack 307 is provided above the wedge block 306. The rack 307 is meshed with the side of the fixed gear 206, and the fixed gear 206 is driven to rotate when the rack 307 is pushed to move vertically upward. A return spring 308 is provided between the rack 307 and the base frame 200. During the loading process, the relative position of the support seat 203 at the fixed hole at the end of the moving arm 202 is adjusted by obtaining the size of the box body, so that the bottom of the box body fits the support seat 20 3. During the loading process, the base frame 200 is moved horizontally by the mobile body 100, so that the end of the pressure plate 303 is pressed and fitted with the box below the box to be placed. When the body 100 continues to move, the pressure plate 303 is subjected to the reverse force to drive the slide bar 302 to slide on the inner wall of the column 301. When the slide bar 302 moves, it drives the moving rod 305 to slide, so that the wedge block 306 at the top of the moving rod 305 pushes the hemispherical block at the bottom of the rack 307 to move. When the rack 307 moves upward in the vertical direction, it drives the fixed gear 206 to rotate, so that the screw rod 201 and the fixed gear 206 rotate coaxially. When the screw rod 201 rotates, it drives the moving arm 202 to move away from each other, so that the box to be placed on the surface of the roller rod 204 is automatically stacked on the box surface, thereby improving the loading efficiency.

[0028] During the process of loading the boxes, in order to avoid the position deviation of the boxes placed on the surface of the roller rod 204, the boxes below are unevenly stressed during the stacking process, causing the entire stack of boxes to fall down and causing damage to the items in the boxes. Therefore, the position adjustment component 400 includes a rotating arm 406 arranged on the outer wall of the base frame 200, and a cylinder 407 is provided at the end of the rotating arm 406. The piston rod at the end of the cylinder 407 penetrates the rotating arm 406 and a push plate 408 is provided at the end. When the box is placed on the surface of the roller rod 204, the push plate 408 is driven by the piston rod at the end of the cylinder 407 to push the box, so that the box is placed horizontally on the surface of the roller rod 204. During the stacking process of the boxes, the boxes below are prevented from falling down due to uneven stress, thereby preventing the items in the boxes from being damaged by collision, thereby improving the safety of loading the boxes.

[0029] During the process of loading the box, since the rotating arm 406 affects the loading path of the support base 203, a servo motor 401 is provided on the side wall of the back plate 205, and a worm 402 is provided at the output end of the servo motor 401, and a worm wheel 403 is provided below the worm 402. Rotating shafts 404 are provided on both sides of the worm wheel 403, and a transmission belt 405 is provided between the rotating shaft 404 and the rotating arm 406. When the position adjustment of the box is completed, the worm 402 is driven to rotate by the output end of the servo motor 401, and the worm wheel 403 provided below the worm 402 engages and rotates, and the worm wheel 403 drives the rotating shafts 404 on both sides to rotate coaxially. When the rotating shaft 404 rotates, the rotating arm 406 is driven to rotate 180° through the transmission belt 405, thereby avoiding the rotating arm 406 from obstructing the loading path when the support base 203 loads the box, thereby improving the loading efficiency.

[0030] When the box is placed on the surface of the support seat 203, when the base frame 200 moves vertically to the end of the moving rail 101, the box is prone to shake and cause safety hazards. Therefore, the limit assembly 500 includes an extension plate arranged above the roller rod 204, a support column 501 is arranged at the bottom of the extension plate, a pressure rod 502 is slidingly arranged on the inner wall of the support column 501, and an elastic member 503 is arranged between the support column 501 and the pressure rod 502. In the natural state, the height of the pressure rod 502 is lower than the height of the shipping box placed on the surface of the support seat 203, and the moving body 10 When the base frame 200 is driven to move horizontally, the box is placed on the surface of the roller rod 204, and the box is pushed so that the end of the box to be loaded presses the pressure rod 502. The pressure rod 502 slides on the inner wall of the support column 501 under the external pressing force and presses the elastic member 503. When the box is completely placed on the surface of the roller rod 204, the pressure rod 502 exerts pressure on the top of the box under the force of the elastic member 503, so that the box moves in the vertical direction and is loaded, thereby ensuring the stability of the box and avoiding safety hazards. When the box is pressed by the pressure rod 502, when the boxes to be loaded are stacked, when the machine body 100 drives the base frame 200 to move horizontally, the box is pushed to slide on the surface of the roller rod 204, and the pressure plate 303 squeezes the box to be placed under the box. The pressure on the pressure plate 303 drives the slide bar 302 to slide on the inner wall of the column 301. When the slide bar 302 moves, it drives the wedge block 306 on the top of the moving rod 305 to squeeze the bottom of the return spring 308, so that the rack 307 moves vertically and drives the fixed gear 2 06 rotates, causing the screw 201 provided at the end of the fixed gear 206 to rotate, so that the movable arm 202 drives the support seat 203 to move in the separated directions, and the box placed on the surface of the roller rod 204 is unloaded. When the support seat 203 moves away, the pressure rod 502 is always pressed against the top of the box to be loaded by the force of the elastic member 503, and the position of the box is limited to prevent the box to be loaded from moving on the surface of the roller rod 204 and causing position deviation. It is necessary to make a secondary adjustment at the stacking position to improve the efficiency of loading and stacking.

[0031] Taking into account that during the installation process, different batches of boxes have different sizes, in order to facilitate the stability of boxes of different sizes during loading, a winding rod shaft 504 is provided on the surface of the extension plate, a pull rope 505 is provided between the winding rod shaft 504 and the pressure rod 502, a ratchet 509 is provided on one side of the winding rod shaft 504, the end of the winding rod shaft 504 passes through the ratchet 509 and a sub-gear 508 is provided on the end, a rotating motor 506 is provided between the extension plates, and a main gear 507 is provided at the output end of the rotating motor 506, and the main gear 507 rotates to drive the top The meshing sub-gears 508 on both sides of the main gear 507 rotate, and the output end of the rotating motor 506 drives the main gear 507 to rotate, so that the sub-gears 508 provided on both sides of the top of the main gear 507 mesh and rotate, and the sub-gears 508 rotate and drive the winding rod shaft 504 to rotate, and the winding rod shaft 504 rolls the pull rope 505 provided on the end of the pressure rod 502, so as to adjust the height of the pressure rod 502, and the ratchet 509 is used to fix the rolling adjustment pull rope 505, so as to facilitate the limitation of different sizes of boxes when loading, and ensure the stability of the boxes to be loaded.

[0032] In summary, the working principle of the present invention is as follows: when in use, the box to be loaded is placed on the surface of the support seat 203, and the box to be loaded is pushed to slide on the surface of the roller rod 204. The piston rod at the end of the cylinder 407 drives the push plate 408 to push the box, so that the box is placed horizontally on the surface of the roller rod 204. In the process of stacking the boxes, the lower box is prevented from falling due to uneven force, thereby preventing the items in the box from colliding and being damaged, thereby improving the safety of loading the boxes.

[0033] When the machine body 100 drives the base frame 200 to move horizontally for loading, the pressure plate 303 squeezes the end of the box to be placed below the box, so that the box below is always kept in a stable state. The pressure on the pressure plate 303 drives the slide bar 302 to slide on the inner wall of the column 301. When the slide bar 302 moves, it drives the wedge block 306 at the top of the moving rod 305 to squeeze the bottom of the return spring 308, so that the rack 307 moves vertically and drives the fixed gear 206 to rotate, so that the screw rod 201 provided at the end of the fixed gear 206 rotates, so that the moving arm 202 drives the support seat 20 3 moves in the direction of separation, automatically unloading and loading the boxes placed on the surface of the roller rod 204, improving the convenience of loading, keeping the stacked boxes stable during loading, and avoiding potential safety hazards; when the support seat 203 moves away from each other, the pressure rod 502 is always pressed against the top of the box to be loaded by the force of the elastic member 503, pressing the top of the box to put the box in a limited position, avoiding the box to be loaded from moving on the surface of the roller rod 204 and causing position deviation, requiring secondary adjustment of the stacking position, and improving the efficiency of loading and stacking.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A logistics loading and unloading machine with a precise positioning structure, characterized in that: The invention comprises a machine body (100), wherein a movable rail (101) is provided at the end of the machine body (100), a base frame (200) is provided on the surface of the movable rail (101), the base frame (200) moves on the surface of the movable rail (101) in a vertical direction, a back plate (205) is provided on the side of the base frame (200) close to the movable rail (101), a screw rod (201) is provided inside the base frame (200), the screw rod (201) has symmetrical threads on the surface, a fixed gear (206) is provided at the center of the screw rod (201), movable arms (202) are provided on both sides of the surface of the screw rod (201), a plurality of fixing holes are opened at the end of the movable arm (202), a support seat (203) is provided at the fixing hole, and the movable arm A support seat (203) is provided at the end of (202), and a pressing assembly (300) is provided below the support seat (203). The pressing assembly (300) is used to place boxes to be stacked and fix the boxes below the boxes to be stacked during the placement process. Position adjustment assemblies (400) are provided on both sides of the base frame (200). The position adjustment assemblies (400) are used to push and position the boxes placed on the surface of the support seat (203) so that the boxes are located at the center of the surface of the roller rod (204). A limiting assembly (500) is provided above the pressing assembly (300). The limiting assembly (500) is used to automatically press the top of the box so that the box remains stable during the moving and loading process.

2. The logistics loading and unloading machine with precise positioning structure according to claim 1 is characterized in that: A groove is provided on the surface of the support seat (203), and roller rods (204) are provided in the groove. The roller rods (204) are arranged in a row.

3. The logistics loading and unloading machine with precise positioning structure according to claim 1 is characterized in that: The pressing assembly (300) comprises a column (301) provided at the bottom of the back plate (205); the column (301) is symmetrically arranged; a sliding rod (302) is slidably provided on the inner wall of the column (301); a pressure plate (303) is provided at the end of the sliding rod (302); a compression spring (304) is provided between the column (301) and the sliding rod (302); and the pressure plate (303) is pressed against the surface of the box below the box to be stacked.

4. The logistics loading and unloading machine with precise positioning structure according to claim 3 is characterized in that: A through groove is provided on the side wall of the column (301), a moving rod (305) is provided between the ends of the slide rod (302), a hemispherical block is provided at the bottom of the moving rod (305), and the movement of the slide rod (302) drives the moving rod (305) to slide on the inner wall of the column (301), and when the moving rod (305) moves, it compresses the compression spring (304), and a wedge block (306) is provided on the top of the compression spring (304).

5. The logistics loading and unloading machine with precise positioning structure according to claim 4 is characterized in that: A rack (307) is provided above the wedge block (306), and the rack (307) meshes with the side of the fixed gear (206). When the rack (307) is pushed to move vertically upward, the fixed gear (206) is driven to rotate. A return spring (308) is provided between the rack (307) and the base frame (200).

6. The logistics loading and unloading machine with precise positioning structure according to claim 1 is characterized in that: The position adjustment component (400) comprises a rotating arm (406) arranged on the outer wall of the base frame (200), a cylinder (407) being provided at the end of the rotating arm (406), a piston rod at the end of the cylinder (407) passing through the rotating arm (406) and a push plate (408) being provided at the end.

7. The logistics loading and unloading machine with precise positioning structure according to claim 6 is characterized in that: A servo motor (401) is provided on the side wall of the back plate (205); a worm (402) is provided at the output end of the servo motor (401); a worm wheel (403) is provided below the worm (402); a rotating shaft (404) is provided on both sides of the worm wheel (403); and a transmission belt (405) is provided between the rotating shaft (404) and the rotating arm (406).

8. The logistics loading and unloading machine with precise positioning structure according to claim 1 is characterized in that: The limiting assembly (500) comprises an extension plate arranged above the roller rod (204), a support column (501) being provided at the bottom of the extension plate, a pressure rod (502) being slidably provided on the inner wall of the support column (501), an elastic member (503) being provided between the support column (501) and the pressure rod (502), and in a natural state, the height of the pressure rod (502) is lower than the height of a shipping box placed on the surface of the support seat (203).

9. The logistics loading and unloading machine with precise positioning structure according to claim 8, characterized in that: A winding shaft (504) is provided on the surface of the extension plate, a pull rope (505) is provided between the winding shaft (504) and the pressure rod (502), a ratchet (509) is provided on one side of the winding shaft (504), an end of the winding shaft (504) passes through the ratchet (509) and a sub-gear (508) is provided on the end, a rotating motor (506) is provided between the extension plates, a main gear (507) is provided at the output end of the rotating motor (506), and the main gear (507) rotates to drive the meshing sub-gears (508) on both sides of the top to rotate.

Images