Cardboard conveying and lifting equipment

Abstract

The present application discloses a cardboard conveying and lifting device, which relates to the field of cardboard conveying and guiding, and includes a base, a first transmission mechanism is arranged on one side of the upper end surface of the base, the first transmission mechanism includes two support plates fixedly arranged on the upper end surface of the base and opposite to each other, and a plurality of first rollers are rotatably arranged between the two support plates; the lifting mechanism includes a lifting frame fixedly arranged on the upper end surface of the base and located on one side of the two support plates, a groove is provided on one side of the lifting frame, and sprockets are rotatably arranged at the upper and lower ends of the groove, and chains are meshed on the tooth surfaces of the two sprockets; the second transmission mechanism includes a transmission frame fixedly arranged on the side of the upper end surface of the base away from the lifting frame, a rotating groove is provided on the upper end surface of the transmission frame, and a plurality of second rollers are rotatably arranged in the rotating groove. The present application vertically lifts the cardboard through a fork body, and transmits it to a conveyor belt at different heights for storage, so as to prevent the cardboard from slipping or falling during the transmission process, and improve the storage efficiency.

Description

Technical Field

[0001] The present application relates to the field of cardboard conveying and guiding, and in particular to a cardboard conveying and lifting device. Background Art

[0002] At present, the paper feeding mechanism on the existing cardboard transmission production line generally uses belts for transportation, and then transmits it to various storage rooms in the warehouse. During this process, it is often necessary to adjust the horizontal height of the paper feeding mechanism so that the cardboard can be accurately delivered to shelves at different heights. The existing paper feeding mechanism uses multiple sections of conveyor belts for transportation, and adjusts the inclination angle between each section of the conveyor belt by moving the frame to lift the cardboard and transport it to different shelves. However, the problem is that the adjustment is cumbersome and complicated, and the cardboard will be offset and misaligned due to the influence of gravity when it is transported by the inclined belt.

[0003] For example, patent number CN202221449269.4 discloses an adjustable cardboard conveying device. The above device has the following shortcomings in actual use:

[0004] The device combines multiple conveyor belts to transport cardboards with the belts, and adjusts the height of multiple conveyor belts to make the belt surfaces tilted so as to lift the cardboards. During the lifting process, the cardboards are stacked, and the tilt angle of the belt surface combined with the influence of gravity causes the stacked cardboards to shift or even slide, making it impossible to store the cardboards on the shelves normally, affecting storage efficiency. Utility Model Content

[0005] In order to improve the problem that conventional transmission methods easily cause cardboard to slip and reduce storage efficiency, the present application provides a cardboard conveying and lifting device.

[0006] The cardboard conveying and lifting device provided in this application adopts the following technical solution:

[0007] A cardboard conveying and lifting device comprises a base, a first transmission mechanism is arranged on one side of the upper end surface of the base, the first transmission mechanism comprises two supporting plates fixedly arranged on the upper end surface of the base and opposite to each other, and a plurality of first rollers are rotatably arranged between the two supporting plates;

[0008] The lifting mechanism comprises a lifting frame fixedly arranged on the upper end surface of the base and located on one side of the two support plates, a groove is provided on one side of the lifting frame, and sprockets are rotatably arranged at the upper and lower ends of the groove, and chains are meshed on the tooth surfaces of the two sprockets, and a rotating seat is fixedly arranged on one end of the chain surface;

[0009] The second transmission mechanism comprises a transmission frame fixedly arranged on the upper end surface of the base away from the lifting frame. The upper end surface of the transmission frame is provided with a rotation groove, and a plurality of second rollers are rotatably arranged in the rotation groove.

[0010] By adopting the above technical solution, the first conveying mechanism initially conveys the cardboard so that the cardboard enters the storage shell and is stacked, and the lifting mechanism vertically lifts the cardboard in the storage shell and transports the cardboard to the second conveying mechanism, thereby conveying the cardboard to shelves at different heights for storage.

[0011] Preferably, the first transmission mechanism also includes two support plates with transverse grooves on their opposite side surfaces, the two ends of the plurality of first rollers are rotatably connected to the bottoms of the two transverse grooves respectively, and the roller surfaces of the plurality of first rollers are fittedly connected to the conveyor belt.

[0012] By adopting the above technical solution, the first roller is rotatably connected to the two ends of the transverse groove, so that the conveyor belt on the surface of the first roller rotates, thereby transmitting the cardboard.

[0013] Preferably, the lifting mechanism also includes a connecting plate rotatably connected to the surface of the rotating shaft of the rotating seat, the end of the connecting plate away from the rotating seat is rotatably connected to a connecting handle, the end of the connecting handle away from the connecting plate is fixedly connected to a fork body, and lead blocks are fixed on both sides of the lower end surface of the fork body.

[0014] By adopting the above technical solution, the rotating seat is moved by the rotation of the chain, and the connecting plate is driven to move synchronously during the movement, and then the moving plate is connected to the connecting handle, so that the fork body moves, thereby inserting and lifting the cardboard, and at the same time, the lead block fixed at the bottom of the fork body keeps the fork body level during the movement.

[0015] Preferably, the ends of the two sprockets away from the lifting frame are rotatably connected to the limiting plate, and a first motor is fixedly provided on the surface of the side of the lifting frame away from the limiting plate. The output shaft of the first motor movably passes through the lifting frame and is fixedly connected to a sprocket located relatively at the upper end of the lifting frame.

[0016] By adopting the above technical solution, the output shaft of the first motor is fixedly connected to the sprocket, thereby controlling the rotation of the chain to provide power for the lifting mechanism. At the same time, the limit plate is connected to the lifting frame through the sprocket to form a slideway to limit the movement of the connecting handle.

[0017] Preferably, the second transmission mechanism also includes a side groove opened on the upper end surface of the transmission frame and located on the other side of the rotating groove, one end of each of the plurality of second roller rotating shafts passes through the transmission frame and is located in the side groove, and a gear is fixedly connected to the surface of one end of the rotating shaft located in the side groove, and a synchronous belt is meshed with the tooth surfaces of the plurality of gears.

[0018] By adopting the above technical solution, the side groove is provided to reserve space for the installation of the gear and the synchronous belt. When the gear is driven to rotate by the synchronous belt, the second roller is synchronously driven to rotate.

[0019] Preferably, a second motor is fixedly provided on one side surface of the transmission frame located in the side groove, the output shaft of the second motor movably passes through the transmission frame located in the side groove, and one end of the output shaft located in the side groove is fixedly connected to a gear side surface at the end of the side groove.

[0020] By adopting the above technical solution, the output shaft of the second motor rotates to drive the gear to rotate, so that the synchronous belt on the surface of the gear drives multiple gears to rotate, providing power for the second transmission mechanism.

[0021] Preferably, a first electric push rod is fixedly provided on the upper end surface of the base at one side of the support plate, and a storage shell is fixedly provided on the top of the telescopic end of the first electric push rod.

[0022] By adopting the above technical solution, the first electric push rod contracts to make the storage shell descend, which is convenient for stacking cardboards.

[0023] Preferably, a second electric push rod is fixedly provided on the upper end surface of the base between the two support plates, and a push plate is fixedly provided on the top of the telescopic end of the second electric push rod.

[0024] By adopting the above technical solution, the second electric push rod pushes the push plate, so that the push plate squeezes the paperboard in the storage shell, thereby making the paperboard flat.

[0025] Preferably, a radiation detector is fixedly provided on one side of the support plate close to the storage shell.

[0026] By adopting the above technical solution, the radiation detector detects whether the cardboard in the storage shell is protruding, and transmits the signal to the first electric push rod and the second electric push rod.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Use a ray detector to detect the cardboard in the storage shell. When the cardboard is convex and deviated, the transmission signal causes the second electric push rod to push the push plate to squeeze the protruding cardboard, so as to keep the cardboard flat and prevent the cardboard from deviating during the stacking process.

[0029] 2. The chain is driven to rotate by the sprocket, and the rotation of the chain drives the rotating seat to move, and then the connecting plate drives the connecting handle to move in the slide groove formed by the lifting frame and the limit plate. The connecting handle moves to lift the fork body, and the fork body is lifted and inserted through the storage shell, bringing up the cardboard in the storage shell. When the fork body moves to the transmission frame, the fork body is inserted through the transmission frame and prevents the cardboard from being on the roller surface of the second roller, thereby completing the lifting and transmission of the cardboard. The vertical lifting action of the fork body can prevent the cardboard from falling due to deviation, thereby improving storage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional schematic diagram of this application;

[0031] Figure 2 This is the exploded diagram of the lifting mechanism for this application;

[0032] Figure 3 This is a diagram of the connection between the fork body and the storage housing of this application;

[0033] Figure 4 This is an exploded diagram of the first transmission mechanism of this application;

[0034] Figure 5 This is an exploded view of the second transmission mechanism of this application.

[0035] Reference numerals: 1. base;

[0036] 2. first transmission mechanism; 21. support plate; 22. first roller; 23. transverse groove; 24. conveyor belt;

[0037] 3. lifting mechanism; 31. lifting frame; 32. limit plate; 33. sprocket; 34. chain; 35. rotating seat; 36. connecting plate; 37. connecting handle; 38. fork body; 39. first motor;

[0038] 4. Second transmission mechanism; 41. Transmission frame; 42. Side groove; 43. Rotation groove; 44. Second roller; 45. Gear; 46. Synchronous belt; 47. Second motor;

[0039] 5. Storage shell; 6. First electric push rod; 7. Second electric push rod; 8. Push plate; 9. X-ray detector; 10. Lead block. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-5 This application is described in further detail.

[0041] The embodiment of the present application discloses a cardboard conveying and lifting device.

[0042] Example 1

[0043] Reference Figure 1 , 4 A cardboard conveying and lifting device comprises a base 1, a first transmission mechanism 2 is fixedly arranged on one side of the upper end surface of the base 1, the first transmission mechanism 2 comprises two support plates 21 welded and fixed on the upper end surface of the base 1, and the two support plates 21 are aligned, and the tops of the two support plates 21 on opposite sides are provided with transverse grooves 23 at the circular protrusions, eight first rollers 22 are arranged side by side in the two transverse grooves 23 (the number of the first rollers 22 is increased according to the actual length of the first transmission mechanism 2), the rotating shafts at both ends of the eight first rollers 22 are rotatably plugged with the bottom of the transverse grooves 23, and the roller surfaces of the eight first rollers 22 are abutted with a conveyor belt 24, and the conveyor belt 24 is set to be made of rubber material.

[0044] It should be noted that a feeding mechanism for feeding cardboard should be provided on one side of the first transmission mechanism 2, and the feeding mechanism synchronously controls the rotation of the first roller 22. Since the feeding mechanism is conventional in the existing technology, it will not be described in detail.

[0045] Through the above arrangement, both ends of the first roller 22 are rotatably connected to the transverse grooves 23 on both sides, and then the first roller 22 is connected to the two support plates 21 to form an overall fixation. When the first roller 22 rotates, it drives the conveyor belt 24 to rotate, thereby transmitting the cardboard on the surface of the conveyor belt 24.

[0046] Reference Figure 1 , 2 The lifting mechanism 3 includes a lifting frame 31 fixed on the upper end surface of the base 1 on the other side of the support plate 21. A groove is provided inwardly on one end surface of the lifting frame 31, and the upper and lower ends of the groove surface are respectively rotatably plugged with the connecting rod in the middle of the two sprockets 33 (the connecting rod is fixedly connected to the through hole in the middle of the sprocket 33). The ends of the rotating rods in the middle of the two sprockets 33 away from the lifting frame 31 are both rotatably plugged with one side of the limit plate 32. The limit plate 32 is elliptical, and the surface of the limit plate 32 is flush with the end surface of the lifting frame 31 to form a slide groove. The mounting end of the first motor 39 is fixed to the surface of the lifting frame 31 away from the limit plate 32 by screws, and the output end of the first motor 39 moves through the side wall of the lifting frame 31 and is plugged and fixed with the rotating rod of the upper sprocket 33.

[0047] Through the above-mentioned arrangement, the two ends of the two sprockets 33 are rotatably connected to the lifting frame 31 and the opposite side of the limiting plate 32 respectively, forming an overall fixation to improve stability, and the width of the limiting plate 32 is smaller than the groove of the lifting frame 31, so that the outer surface of the limiting plate 32 and the inner wall of the groove of the lifting frame 31 form an elliptical groove, which is used for the movement of the connecting handle 37 and limits the movement of the connecting handle 37; when the first motor 39 rotates, it drives the upper sprocket 33 to rotate synchronously, providing power for the lifting mechanism 3.

[0048] Reference Figure 2 The surfaces of the two sprockets 33 are provided with meshing chains 34, and the tooth grooves of the two sprockets 33 are embedded and connected with the pin joints of the chains 34. A rotating seat 35 is fixed at one end of the bottom surface of the chain 34. The rotating shaft in the middle of the rotating seat 35 is rotatably connected to the through hole at the top of the connecting plate 36. A connecting handle 37 is rotatably connected in the through hole at the bottom end of the connecting plate 36. The connecting handle 37 is cylindrical, and the cylindrical width of the connecting handle 37 is 1 to 2 cm less than the width of the slide groove formed by the lifting frame 31 and the limiting plate 32. A fork body 38 is welded and fixed to the other end of the connecting handle 37 relative to the connecting plate 36. Lead blocks 10 are fixed on both sides of the bottom surface of the fork body 38 (the weight of the lead block 10 needs to be greater than the weight of the fork body 38), so that the center of gravity of the bottom of the fork body 38 is lowered, thereby maintaining the horizontal balance of the fork body 38 during movement.

[0049] The upper sprocket 33 is driven by the first motor 39 to act as the driving sprocket 33, and the chain 34 is driven to rotate. The rotation of the chain 34 drives the bottom sprocket 33 to rotate. The rotation of the two sprockets 33 stabilizes the chain 34. The rotating seat 35 fixed on one side of the bottom of the chain 34 moves with the rotation of the chain 34. The rotating seat 35 is rotatably connected with the connecting plate 36. The connecting plate 36 transmits the pulling force generated when the rotating seat 35 moves to the connecting handle 37. The connecting handle 37 is pushed to move along the slide groove formed by the lifting frame 31 and the limit plate 32. When the connecting handle 37 moves to the arc groove surfaces at the upper and lower ends of the slide groove, the connecting plate 36 is pulled by the rotating seat 35 and the gravity of the connecting handle 37, forming a counterclockwise rotation around the center of the connecting plate 36, thereby completing the linear to circular motion, so that the fork body 38 moves along the slide groove.

[0050] Reference Figure 1 , 5 The second transmission mechanism 4 includes a transmission frame 41. Four pillars at the bottom of the transmission frame 41 are fixed to the side of the upper end surface of the base 1 away from the support plate 21. A square rotation groove 43 is opened inward on the upper end surface of the transmission frame 41, and seven second rollers 44 are arranged in parallel in the rotation groove 43 (the number of the second rollers 44 is increased according to the actual length of the second transmission mechanism 4). The rotation axes at both ends of the seven second rollers 44 are rotatably plugged with both ends of the rotation groove 43.

[0051] A side groove 42 is provided on the upper surface of the transmission frame 41 on one side relative to the rotating groove 43, and one end of the side groove 42 penetrates the transmission frame 41 and communicates with the outside. Meanwhile, seven gears 45 (the number of gears 45 increases synchronously with the second rollers 44) are rotatably arranged on both sides of the side groove 42 relative to the positions of the seven second rollers 44. The connecting rods in the middle of the seven gears 45 penetrate the transmission frame 41, and the penetrating ends of the connecting rods are fixedly connected to the rotating shafts of the seven second rollers 44 one by one. The surfaces of the seven gears 45 are surrounded by matching synchronous belts 46, and the inner ring of the synchronous belts 46 meshes with the tooth surfaces of the gears 45. A second motor 47 is fixedly arranged on the side of the transmission frame 41 relative to the position of the terminal gear 45, and the output shaft of the second motor 47 movably penetrates the transmission frame 41 and is fixedly connected to one end of the connecting rod of the gear 45.

[0052] It should be noted that if Figure 5 As shown, two slots are provided on the upper end surface of the transmission frame 41 close to the lifting frame 31 . The width of the slots is 1 to 2 cm greater than the width of the fork column of the fork body 38 , and the center of the slots is aligned with the center of the slide groove formed by the lifting frame 31 and the limiting plate 32 .

[0053] Through the above arrangement, when the fork body 38 moves to the upper end of the transmission frame 41, it passes through the two slots of the transmission frame 41 and places the cardboard carried by the fork body 38 on the surface of the roller. At the same time, the second motor 47 rotates to drive a gear 45 at the end to rotate. The end gear 45 as the driving gear 45 rotates to rotate the synchronous belt 46. The rotation of the synchronous belt 46 rotates the remaining driven gears 45 meshed with the inner ring of the synchronous belt 46, so that the seven gears 45 rotate at the same time to drive the seven second rollers 44 to rotate. The seven second rollers 44 rotate to transmit the cardboard transported to the surface of the roller.

[0054] Reference Figure 1 , 3 A first electric push rod 6 is fixedly provided on the upper end surface of the base 1 relative to one side of the fork body 38, and the top of the telescopic end of the first electric push rod 6 is welded and fixed to one side of the bottom of the storage shell 5 (the width of the middle space of the storage shell 5 is greater than the width of the cardboard), the middle space of the storage shell 5 is aligned with the center of the conveyor belt 24, and under normal conditions, the inner bottom surface of the storage shell 5 needs to be lower than the horizontal height of the conveyor belt 24 (the height of the storage shell 5 is lower than the height equivalent to the thickness of a cardboard), three slots are opened at the bottom of the storage shell 5, and the width of the slots is 1 to 2 cm greater than the width of the fork column of the fork body 38, and the center of the slot is aligned with the center of the slide groove formed by the lifting frame 31 and the limiting plate 32.

[0055] Through the above arrangement, the storage shell 5 is aligned with the center of the conveyor belt 24. When the conveyor belt 24 transports the cardboard into the storage shell 5, the microcomputer sends a signal to control the first electric push rod 6 to contract, so that the storage shell 5 drops synchronously until the height of the cardboard in the storage shell 5 is lower than the conveyor belt 24, and then the conveyor belt 24 transports the cardboard again, thereby completing the stacking and storage of the cardboard. At the same time, the slot opened at the bottom of the storage shell 5 allows the fork body 38 to pass through the slot when moving upward, thereby lifting the stacked cardboard in the storage shell 5.

[0056] Reference Figure 1 , 4 A second electric push rod 7 is fixedly provided on the upper end surface of the base 1 between the two support plates 21, and the telescopic end of the second electric push rod 7 is fixedly connected to a push plate 8. The push plate 8 is square in shape. Under normal conditions, the top height of the push plate 8 is higher than the bottom height of the storage shell (the height of the push plate 8 is equal to the thickness of a cardboard). A radiation detector 9 is fixedly provided on one side of the support plate 21 close to the first electric push rod 6 relative to the first electric push rod 6, and the radiation scanning height of the radiation detector 9 is lower than the upper end height of the conveyor belt 24 (the height of the radiation detector 9 is equal to the thickness of a cardboard).

[0057] Through the above arrangement, when the conveyor belt 24 conveys the cardboard to the inside of the storage shell 5, the fed cardboard is uneven and protrudes from the storage shell 5. The protruding part of the cardboard blocks the rays emitted by the radiation detector 9. After being blocked, the radiation detector 9 sends a signal to the microcomputer. The microcomputer controls the second electric push rod 7 to perform a telescopic movement. The second electric push rod 7 pushes the push plate 8 when extending. The push plate 8 moves until it abuts against the protruding part of the cardboard and presses the cardboard into the storage shell 5, thereby neatly stacking the cardboard.

[0058] Among them, the device also includes a microcomputer, a compiler, a controller, a first electric push rod 6, a second electric push rod 7 and a radiation detector 9, which are all existing technologies, and their structural principles are no longer described in detail.

[0059] The implementation principle of a board conveying and lifting device in the embodiment of the present application is as follows: when using the device, the microcomputer sends a signal to the controller, the controller controls the feeding mechanism to start, the feeding mechanism feeds the cardboard onto the surface of the conveyor belt 24, after the feeding mechanism is turned on, the first roller 22 rotates, the first roller 22 rotates to drive the conveyor belt 24 to rotate, thereby controlling the conveyor belt 24 to carry the cardboard;

[0060] When the cardboard is carried to the end of the conveyor belt 24, the cardboard falls from the belt surface into the storage shell 5. At this time, the cardboard cannot be completely placed in the storage shell 5. The part of the cardboard protruding from the storage shell 5 blocks the radiation of the radiation detector 9. The radiation detector 9 is blocked and sends the model to the microcomputer. The microcomputer controls the second electric push rod 7 to perform a telescopic action. When the second electric push rod 7 is extended, it pushes the push plate 8. The push plate 8 is pushed to squeeze the protruding cardboard, so that the cardboard is pressed into the storage shell 5 to keep it flat, and then the second electric push rod 7 is retracted to return to its original position;

[0061] Then the microcomputer sends a signal to control the first electric push rod 6 to retract, so that the storage housing 5 drops vertically. When the storage housing 5 drops a distance of the thickness of the cardboard, the first electric push rod 6 stops retracting, so that the storage housing 5 remains stationary and continues to receive the cardboards conveyed by the conveyor belt 24, thereby stacking the cardboards for easy storage;

[0062] When the cardboards are stacked to be flush with the upper end surface of the storage shell 5, the microcomputer sends a signal, and the compiler controls the first motor 39 to start, and the first motor 39 drives the sprocket 33 to rotate, and the rotation of the sprocket 33 drives the chain 34 to rotate, and when the chain 34 rotates, the rotating seat 35 moves as a whole, and the rotating seat 35 drives the connecting plate 36 to move synchronously, and the connecting plate 36 transmits the tension applied by the rotating seat 35 to the connecting handle 37, and the connecting handle 37 is subjected to the tension and moves between the lifting frame 31 and the limit plate 32, thereby causing the fork body 38 to move synchronously;

[0063] When the fork 38 rises to the bottom of the storage shell 5, the fork 38 penetrates through the slot at the bottom of the storage shell 5 and takes up the cardboards stacked in the storage shell 5. The fork 38 drives the cardboards to be lifted. When the fork 38 moves to the top of the transmission frame 41, the fork 38 penetrates through the slot at the top of the transmission frame 41 and places the cardboards on the surface of the second roller 44.

[0064] The microcomputer sends a signal to make the compiler control the second motor 47 to rotate, and the second motor 47 drives a gear 45 at the end. The end gear 45 rotates through the synchronous belt 46 to drive all gears 45 to rotate synchronously. The rotation of all gears 45 drives the second roller 44 to rotate, thereby transporting the cardboard on the surface of the second roller 44 to the preset storage shelf.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cardboard conveying and lifting device, characterized in that: It comprises a base (1), a first transmission mechanism (2) is arranged on one side of the upper end surface of the base (1), the first transmission mechanism (2) comprises two supporting plates (21) fixedly arranged on the upper end surface of the base (1) and opposite to each other, and a plurality of first rollers (22) are rotatably arranged between the two supporting plates (21); The lifting mechanism (3) comprises a lifting frame (31) fixedly arranged on the upper end surface of the base (1) and located on one side of the two support plates (21), a groove being provided on one side of the lifting frame (31), and sprocket wheels (33) being rotatably arranged at the upper and lower ends of the groove, a chain (34) being meshed with the tooth surfaces of the two sprocket wheels (33), and a rotating seat (35) being fixedly arranged on one end of the surface of the chain (34); The second transmission mechanism (4) comprises a transmission frame (41) fixedly mounted on the upper end surface of the base (1) away from the lifting frame (31), wherein a rotation groove (43) is provided on the upper end surface of the transmission frame (41), and a plurality of second rollers (44) are rotatably arranged in the rotation groove (43).

2. A cardboard conveying and lifting device according to claim 1, characterized in that: The first transmission mechanism (2) also includes two support plates (21) with transverse grooves (23) on their opposite side surfaces, the two ends of the plurality of first rollers (22) are respectively rotatably connected to the bottoms of the two transverse grooves (23), and the roller surfaces of the plurality of first rollers (22) are bondedly connected to a conveyor belt (24).

3. The cardboard conveying and lifting device according to claim 1, characterized in that: The lifting mechanism (3) further comprises a connecting plate (36) rotatably connected to the surface of the rotating shaft of the rotating seat (35); one end of the connecting plate (36) away from the rotating seat (35) is rotatably connected to a connecting handle (37); one end of the connecting handle (37) away from the connecting plate (36) is fixedly connected to a fork body (38); lead blocks (10) are fixedly provided on both sides of the lower end surface of the fork body (38).

4. The cardboard conveying and lifting device according to claim 1, characterized in that: The ends of the two sprockets (33) away from the lifting frame (31) are rotatably connected to the limiting plate (32), and a first motor (39) is fixedly provided on the surface of one side of the lifting frame (31) away from the limiting plate (32), and the output shaft of the first motor (39) movably passes through the lifting frame (31) and is fixedly connected to a sprocket (33) located at the upper end of the lifting frame (31).

5. The cardboard conveying and lifting device according to claim 1, characterized in that: The second transmission mechanism (4) further comprises a side groove (42) which is opened on the upper end surface of the transmission frame (41) and is located on the other side of the rotating groove (43); one end of the rotating shaft of the plurality of second rollers (44) passes through the transmission frame (41) and is located in the side groove (42); a gear (45) is fixedly connected to the surface of one end of the rotating shaft located in the side groove (42); and a synchronous belt (46) is provided on the tooth surfaces of the plurality of gears (45) in meshing engagement.

6. The cardboard conveying and lifting device according to claim 1, characterized in that: A second motor (47) is fixedly provided on a side surface of the transmission frame (41) located in the side groove (42); an output shaft of the second motor (47) movably penetrates the groove of the transmission frame (41) located in the side groove (42); and one end of the output shaft located in the side groove (42) is fixedly connected to a side surface of a gear (45) at the end of the side groove (42).

7. The cardboard conveying and lifting device according to claim 1, characterized in that: A first electric push rod (6) is fixedly provided on the upper end surface of the base (1) at one side of the support plate (21), and a storage housing (5) is fixedly provided on the top of the telescopic end of the first electric push rod (6).

8. The cardboard conveying and lifting device according to claim 1, characterized in that: A second electric push rod (7) is fixedly provided on the upper end surface of the base (1) between two support plates (21), and a push plate (8) is fixedly provided on the top of the telescopic end of the second electric push rod (7).

9. The cardboard conveying and lifting device according to claim 1, characterized in that: A radiation detector (9) is fixedly provided on one side of the support plate (21) close to the storage housing (5).

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