Paperboard carrying device

Abstract

The utility model relates to the technical field of packaging mechanical equipment, and provides a paperboard carrying device which comprises a rack. The clamping unit is arranged on the rack and used for clamping a paperboard; the supporting piece is slidably arranged relative to the rack; the sliding rod slides and is rotationally arranged relative to the rack and is located above the supporting piece, and the sliding direction of the sliding rod is parallel to the sliding direction of the supporting piece; the partition piece is arranged on the sliding rod; according to the technical scheme, the problems of low overall utilization rate and low working efficiency of equipment during mixed line production of various paperboards with large model difference, particularly during simultaneous transfer and stacking of two stacks of paperboards in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery and equipment, and in particular to a cardboard conveying device. Background Art

[0002] The cardboard packaging process generally involves the steps of transfer and palletizing, and generally a single stack of cardboard is transferred and palletized. During production, in view of the various types and sizes of cardboard, people choose larger cardboard trays to accommodate all sizes of cardboard produced. However, when producing smaller cardboard, the large-sized trays have the problems of low overall utilization and low work efficiency. Later, people proposed to stack two stacks of cardboard on the large-sized tray to improve the utilization rate. However, the two stacks of cardboard will be intertwined, and manual sorting is required, resulting in an increase in the overall workload and work efficiency. Therefore, it is necessary to improve and optimize the existing technology to improve the overall utilization and work efficiency of the equipment. Utility Model Content

[0003] The utility model provides a cardboard transporting device, which solves the problem of low overall equipment utilization and low working efficiency in the related art when multiple cardboards with greatly different models are produced on a mixed line, especially when two piles of cardboards are transported and stacked at the same time.

[0004] The technical solution of the utility model is as follows:

[0005] A cardboard transporting device, comprising:

[0006] frame;

[0007] A clamping unit, arranged on the frame, for clamping paperboard;

[0008] A support, slidably arranged relative to the frame;

[0009] A slide bar is slidably and rotatably arranged relative to the frame and is located above the support, wherein the sliding direction of the slide bar is parallel to the sliding direction of the support;

[0010] A separator is arranged on the slide bar.

[0011] As a further technical solution, the clamping unit includes:

[0012] A plurality of side clamping members are slidably arranged relative to the frame and symmetrically distributed on the left and right sides of the support member;

[0013] The top clamping member is slidably arranged relative to the frame.

[0014] As a further technical solution, the clamping unit further includes:

[0015] A guide rod, arranged on the frame;

[0016] A plurality of support frames are all slidably arranged on the guide rod, and one of the side clamping members is slidably arranged on any of the support frames;

[0017] A linear driver 1 is arranged on the support frame, and outputs power for driving the side clamping member to slide.

[0018] As a further technical solution, the clamping unit further includes:

[0019] A transmission shaft, rotatably disposed on the frame and threadedly connected to the support frame;

[0020] The first rotary driver is arranged on the frame, and the output power is used to drive the transmission shaft to rotate.

[0021] As a further technical solution, it also includes:

[0022] A slide rail, arranged on the frame, and the slide rail is L-shaped as a whole;

[0023] The auxiliary belt is slidably arranged on the slide rail. After the auxiliary belt slides, the auxiliary belt is horizontally laid below the clamping unit or vertically placed on one side of the frame.

[0024] As a further technical solution, a loading unit is also included, and the loading unit includes:

[0025] A lifting frame, arranged on one side of the frame;

[0026] A lifting platform is slidably arranged on the lifting frame and is used for conveying paperboards up and down;

[0027] A pushing member is slidably arranged on the lifting frame. After the pushing member slides, it is used to push the cardboard on the lifting platform to the clamping unit.

[0028] As a further technical solution, the feeding unit further includes:

[0029] A conveying frame is arranged on one side of the lifting frame, and the conveying frame and the frame are respectively located on both sides of the lifting frame;

[0030] A plurality of conveying rollers distributed at intervals are all rotatably arranged on the conveying frame. After the conveying rollers rotate, they are used to convey the paperboard close to the lifting platform.

[0031] As a further technical solution, a material receiving unit is also included, and the material receiving unit includes:

[0032] A lifting frame, slidably arranged on the frame;

[0033] A receiving platform is detachably arranged on the lifting frame and is used to receive paperboard;

[0034] A plurality of unloading rollers are arranged to rotate relative to the frame and after the lifting frame slides, some of the unloading rollers collide with or separate from the material receiving platform.

[0035] As a further technical solution, it also includes:

[0036] A plurality of photoelectric sensors are arranged on the frame and located above the clamping unit.

[0037] The working principle and beneficial effects of the utility model are:

[0038] The utility model includes a frame, a clamping unit, a support, a slide bar and a separator; the clamping unit can be a commonly used cardboard clamping structure in the prior art; the frame is provided with a cardboard loading port; the cardboard handling device has two working states, the first is single-pile cardboard stacking, the second is two-pile cardboard stacking at the same time; the principle is that paper smaller than a certain size automatically switches from single-pile stacking to double-pile stacking mode. In actual use, according to actual work needs, only the actual size of the corresponding cardboard can be input on the control panel of the cardboard handling device, and the cardboard handling device can automatically switch its working state between single-pile and double-pile.

[0039] When two stacks of cardboard need to be stacked at the same time, the support and the slide bar slide toward the loading port, and after the built-in photoelectric detection device on the frame detects that the support and the slide bar have moved to the preset position, the support and the slide bar stop sliding; at this time, the separator is in a vertical downward state, and then the slide bar starts to rotate, and the slide bar drives the separator to rotate at least ninety degrees, and the separator is in an inclined upward state; then the first stack of cardboard begins to approach the support under the push of external force, passes through the bottom of the separator and moves to the support, and then the external force is removed, and the support is under the first stack of cardboard; the support can prevent thin and long strips or soft paper from bending during paper collection, and stacking is smooth. Then, the slide bar rotates in the opposite direction, and the slide bar drives the separator to rotate in the opposite direction, and the separator returns to the vertical downward state; then, the slide bar slides in the direction away from the feeding port, and the separator maintains the vertical downward state and gradually approaches the first stack of paperboards and makes extrusion contact. During the sliding process, the slide bar stops sliding after detecting that the first stack of paperboards moves to a preset position with the help of the built-in photoelectric detection device on the frame; during the sliding process, the separator aligns the edges of the first stack of paperboards to improve the neatness of the first stack of paperboards, avoids the phenomenon that the first stack of paperboards are misaligned and overlapped with the second stack of paperboards, and reduces the workload of manual sorting and rework and aligning.

[0040] After the slide bar stops moving, the separator remains in a vertical downward state, and with the help of external force, the second stack of cardboard is pushed through the feeding port and into the working area of ​​the clamping unit. The second stack of cardboard gradually approaches the separator and squeezes and contacts. At this time, the second stack of cardboard moves into place; the edges of the second stack of cardboard are trimmed with the help of the separator, and the first and second stacks of cardboard are separated to avoid the phenomenon of cardboard interlacing. Then the clamping unit starts to work, clamping and arranging the two stacks of cardboard to prevent the cardboard from falling prematurely, resulting in the two stacks of cardboard being stacked unevenly; the support slides away from the feeding port, and the support separates from the cardboard; at this time, the two stacks of cardboard complete the preparation work before palletizing, and the two stacks of cardboard are fixed neatly and adjacently on the clamping unit without cardboard interlacing. Then the clamping unit releases the two stacks of cardboard onto the palletizing platform, completing the transfer and palletizing of the two stacks of cardboard. Then the slide bar slides again with the separator towards the feeding port until the built-in photoelectric detection device on the frame detects that the support and the slide bar move to the preset position, and the support and the slide bar stop sliding and wait for the next palletizing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0042] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0043] Figure 2 It is a structural schematic diagram of the clamping unit and the material receiving unit of the utility model when the auxiliary belt is in a horizontal state;

[0044] Figure 3 It is a structural schematic diagram of the clamping unit of the utility model when the auxiliary belt is in a horizontal state;

[0045] Figure 4 It is a structural schematic diagram of the clamping unit and the material receiving unit of the utility model when the auxiliary belt is in a vertical state;

[0046] In the figure: 1. frame, 11. support, 12. slide bar, 13. partition, 14. slide rail, 15. sub-belt, 16. photoelectric sensor, 2. clamping unit, 21. side clamping member, 22. top clamping member, 23. guide rod, 24. support frame, 25. linear drive 1, 26. transmission shaft, 27. rotary drive 1, 3. feeding unit, 31. lifting frame, 32. lifting platform, 33. pushing member, 34. conveying frame, 35. conveying roller, 4. material receiving unit, 41. lifting frame, 42. material receiving platform, 43. unloading roller. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0048] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0049] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] Embodiment 1

[0052] Reference Figure 1~Figure 4 , which is the first embodiment of the utility model, provides a cardboard transporting device.

[0053] In this embodiment, it includes a frame 1, a clamping unit 2, a support 11, a slide bar 12 and a separator 13; wherein the clamping unit 2 can be a cardboard clamping structure commonly used in the prior art; the frame 1 has a cardboard loading port; the cardboard handling device has two working states, the first is single-pile cardboard stacking, and the second is two-pile cardboard stacking at the same time; the principle is that paper smaller than a certain size automatically switches from single-pile stacking to double-pile stacking mode. In actual use, according to actual work needs, only the actual size of the corresponding cardboard can be input on the control panel of the cardboard handling device, and the cardboard handling device can automatically switch its working state between single-pile and double-pile.

[0054] When two stacks of cardboard need to be stacked at the same time, the support 11 and the slide bar 12 slide toward the loading port, and after the built-in photoelectric detection device on the frame 1 detects that the support 11 and the slide bar 12 move to the preset position, the support 11 and the slide bar 12 stop sliding; at this time, the partition 13 is in a vertical downward state, and then the slide bar 12 starts to rotate, and the slide bar 12 drives the partition 13 to rotate at least ninety degrees, and the partition 13 is in an inclined upward state; then the first stack of cardboard begins to approach the support 11 under the push of external force, passes through the bottom of the partition 13 and moves to the support 11, and then the external force is removed, and the support 11 is below the first stack of cardboard; the support 11 can prevent slender strips or soft paper from bending when receiving paper, and the stacking is smooth. Then, the slide bar 12 is rotated in the opposite direction, and the slide bar 12 drives the partition 13 to rotate in the opposite direction, and the partition 13 returns to the vertical downward state; then, the slide bar 12 slides in the direction away from the feeding port, and the partition 13 maintains the vertical downward state and gradually approaches the first stack of paperboards and makes extrusion contact. During the sliding process, the slide bar 12 detects that the first stack of paperboards moves to a preset position with the help of the built-in photoelectric detection device on the frame 1, and then the slide bar 12 stops sliding; during the sliding process, the partition 13 aligns the edges of the first stack of paperboards to improve the neatness of the first stack of paperboards, avoids the phenomenon that the first stack of paperboards is misplaced and the second stack of paperboards are stacked, and reduces the workload of manual sorting and rework and aligning.

[0055] After the slide bar 12 stops moving, the separator 13 remains in a vertical downward state, and with the help of external force, the second stack of cardboard is pushed through the feeding port and into the working area of ​​the clamping unit 2. The second stack of cardboard gradually approaches the separator 13 and is squeezed and contacted. At this time, the second stack of cardboard moves into place; the edges of the second stack of cardboard are trimmed with the help of the separator 13, and the first and second stacks of cardboard are separated to avoid the phenomenon of cardboard interlacing. Then the clamping unit 2 starts to work, clamping and arranging the two stacks of cardboard to prevent the cardboard from falling prematurely, resulting in the two stacks of cardboard being stacked unevenly; the support 11 slides away from the feeding port, and the support 11 separates from the cardboard; at this time, the two stacks of cardboard complete the preparation work before stacking, and the two stacks of cardboard are fixed neatly and adjacently on the clamping unit 2 without cardboard interlacing. Then the clamping unit 2 releases the two stacks of cardboard onto the stacking platform to complete the transfer and stacking of the two stacks of cardboard. Then the slide bar 12 slides with the partition 13 again toward the loading port until the built-in photoelectric detection device on the frame 1 detects that the support 11 and the slide bar 12 move to the preset position, and then the support 11 and the slide bar 12 stop sliding and wait for the next palletizing operation.

[0056] Embodiment 2

[0057] Reference Figure 1~Figure 4, which is the second embodiment of the utility model. On the basis of the first embodiment, the present embodiment further refines the clamping unit 2. Specifically, the clamping unit 2 includes a side clamping member 21, a top clamping member 22, a guide rod 23, a support frame 24, a linear driver 25, a transmission shaft 26 and a rotation driver 27; the number of the side clamping member 21, the support frame 24 and the linear driver 25 is preferably two, and a side clamping member 21 and a linear driver 25 are arranged on a support frame 24; the linear driver 25 can be a device that can output linear motion in the prior art, preferably a hydraulic cylinder or a cylinder; the rotation driver 27 can be a device that can output rotational motion in the prior art, preferably an electrically driven motor; the transmission shaft 26 has a thread in the middle, preferably a lead screw, and the threads at both ends of the lead screw are screwed in opposite directions.

[0058] When in use, the two side clamping members 21 and the top clamping member 22 are surrounded by a U shape as a whole, and the opening of the U shape is just opposite to the feeding port, which is convenient for loading paperboards; when the slide bar 12 brings the separator 13 away from the feeding port, the separator 13 squeezes the first stack of paperboards and gradually approaches the top clamping member 22, and the front and rear ends of the first stack of paperboards are aligned with the help of the separator 13 and the top clamping member 22; after the built-in photoelectric detection device on the frame 1 detects that the first stack of paper is in conflict with the top clamping member 22, the slide bar 12 stops sliding; when the second stack of paperboards moves to the middle of the two side clamping members 21, the two linear drivers 25 are started and drive the two side clamping members 21 to approach each other, and the left and right ends of the paperboards are aligned with the help of the side clamping members 21 on both sides; the side clamping members 21 stop moving after moving a certain distance, and at this time, the two stacks of paperboards are in a state of slightly arching upwards to ensure that the paperboards will not fall downwards. When the cardboard model changes, especially when the size of the left and right ends changes, the rotating driver 27 can be started, and the rotating driver 27 drives the transmission shaft 26 to rotate. With the help of the threaded connection between the transmission shaft 26 and the support frame 24, the two support frames 24 are driven to move closer to or away from each other, and the position of the support frame 24 is quickly adjusted. It is suitable for different models of cardboards and can ensure the symmetry of the relative positions of the two support frames 24.

[0059] Embodiment 3

[0060] Reference Figure 1~Figure 4, which is the third embodiment of the utility model. On the basis of the first embodiment, this embodiment further adds a slide rail 14 and a sub-belt 15. When in use, when the slide bar 12 moves toward the direction close to the loading port, the sub-belt 15 is driven to move along the slide rail 14 by means of the built-in transmission chain, transmission wheel and power source on the frame 1. The slide rail 14 is L-shaped as a whole, including a horizontal section and a vertical section, and the horizontal section is located above the vertical section; after the sub-belt 15 slides to the horizontal section, it is horizontally laid on the clamping unit 2 to receive the cardboard released by the clamping unit 2; if the cardboard falls prematurely, the sub-belt 15 can catch it in time to prevent the cardboard that falls prematurely from falling onto the stacked cardboard, causing the cardboard to be stacked unevenly; in normal use, the sub-belt 15 plays a transition buffering role, which is used to receive the cardboard released by the clamping unit 2 to ensure that the equipment is continuously produced without stopping. At the same time, the buffering of the sub-belt 15 can be used to reduce the distance between the clamping unit 2 and the stacking platform, thereby reducing the risk of cardboard falling. The cardboard released by the clamping unit 2 falls onto the auxiliary belt 15. Under the action of the built-in power source of the frame 1, the auxiliary belt 15 slides along the slide rail 14 and moves from the horizontal section to the vertical section. The cardboard on the auxiliary belt 15 falls onto the platform for stacking, completing the stacking of the cardboard.

[0061] Embodiment 4

[0062] Reference Figure 1 , which is the fourth embodiment of the present utility model. On the basis of the first embodiment, this embodiment further adds a feeding unit 3 to ensure the smooth transportation of cardboard; the specific feeding unit 3 includes a lifting frame 31, a lifting platform 32, a pushing member 33, a conveying frame 34 and a conveying roller 35; when in use, the stack of cardboard is placed on the conveying roller 35, and the conveying roller 35 is driven to rotate by the built-in power source on the conveying frame 34, and the conveying roller 35 conveys the cardboard to the lifting platform 32; then the lifting platform 32 is driven to slide upward by the built-in power source of the lifting frame 31 until the lifting platform 32 moves to the side of the feeding port; at this time, the pushing member 33 starts to slide and comes into compression contact with the cardboard on the lifting platform 32, and the cardboard slides out of the lifting platform 32 and passes through the feeding port to the clamping unit 2 by the compression of the pushing member 33; the pushing member 33 can trim the end edge of the cardboard to improve the neatness; with the help of the feeding unit 3, the smooth transportation of the cardboard is ensured, the consistency of the cardboard transportation state is ensured, the workload of manual trimming is reduced, and the manual work is reduced.

[0063] Embodiment 5

[0064] Reference Figure 1~Figure 4, which is the fifth embodiment of the utility model. On the basis of the first embodiment, this embodiment further adds a material receiving unit 4 to facilitate the transportation of the stacked cardboards and ensure the continuity of the cardboard stacking operation; specifically, it includes a lifting frame 41, a material receiving platform 42 and a discharge roller 43; when in use, the lifting frame 41 is adjusted to slide up and down with the help of the chain, transmission wheel and power source built into the frame 1, and the lifting frame 41 will drive the material receiving platform 42 to move synchronously; a pallet for cardboard stacking is placed on the material receiving platform 42, and the lifting frame 41 stops sliding after rising to a certain height. At this time, the pallet is located below the clamping unit 2, waiting to receive the cardboard released by the clamping unit 2; as the cardboards are gradually stacked, the lifting frame 41 slides downward with the pallet according to a pre-set trajectory, and the highest point of the cardboard on the pallet is the same as the initial height of the pallet, which is convenient for receiving the cardboard.

[0065] When the cardboards on the pallet accumulate to a preset number, the lifting frame 41 slides downward quickly until the bottom of the receiving platform 42 is squeezed and contacted with the discharge roller 43, and then the receiving platform 42 slides downward for a distance and stops moving; under the power output of the power source built into the frame 1, the discharge roller 43 slides with the receiving platform 42, the pallet and the stacked cardboards in the direction away from the frame 1, so as to facilitate the transportation and storage of the stacked pallet and cardboards.

[0066] The number of receiving platforms 42 is preferably two. When the first receiving platform 42 receives the cardboard under the clamping unit 2, the second receiving platform 42 is located above the unloading roller 43 in the spare area; when the first receiving platform 42 receives a sufficient number of cardboards, it starts to slide downward and comes into squeeze contact with the unloading roller 43. At this time, the unloading roller 43 starts to rotate synchronously, and the two receiving platforms 42 move in the same direction. The first receiving platform 42 gradually moves away from the frame 1, and the second receiving platform 42 moves from the spare area to the bottom of the clamping unit 2, and the unloading roller 43 stops rotating; then the lifting frame 41 slides upward and takes the second receiving platform 42 to prepare for receiving the cardboard; when the pallet on the first receiving platform 42 is transported away, the unloading roller 43 starts to rotate in the opposite direction and takes the first receiving platform 42 and the new pallet to the spare area, waiting for the receiving platform 42 to be replaced again, thereby realizing continuous paper receiving operation, reducing the equipment downtime time, and improving the overall work efficiency.

[0067] Embodiment 6

[0068] Reference Figure 2~Figure 4, which is the sixth embodiment of the utility model. On the basis of the first embodiment, this embodiment further adds a plurality of photoelectric sensors 16. The photoelectric sensors 16 detect the clamping unit 2. When two stacks of cardboard need to be stacked at the same time, the photoelectric sensors 16 detect the positions of the two stacks of cardboard respectively. When two stacks of cardboard are detected at the same time, the clamping unit 2 can release the cardboard, otherwise it stops releasing the cardboard, so as to avoid the scattering of the cardboard caused by the falling of a single stack of cardboard, and ensure the consistency of the cardboard transportation and stacking operations.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cardboard transporting device, characterized in that: include: Rack(1); A clamping unit (2), arranged on the frame (1) and used for clamping cardboard; A support (11) is slidably arranged relative to the frame (1); A slide bar (12) is arranged to slide and rotate relative to the frame (1), and is located above the support (11), wherein the sliding direction of the slide bar (12) and the sliding direction of the support (11) are parallel to each other; A separator (13) is arranged on the sliding rod (12).

2. A cardboard transporting device according to claim 1, characterized in that: The clamping unit (2) comprises: A plurality of side clamping members (21) are slidably arranged relative to the frame (1) and are symmetrically distributed on the left and right sides of the support member (11); The top clamping member (22) is slidably arranged relative to the frame (1).

3. A cardboard transporting device according to claim 2, characterized in that: The clamping unit (2) further comprises: A guide rod (23) arranged on the frame (1); A plurality of support frames (24) are all slidably disposed on the guide rod (23), and one of the side clamping members (21) is slidably disposed on any of the support frames (24); A linear drive (25) is arranged on the support frame (24), and outputs power for driving the side clamping member (21) to slide.

4. A cardboard transporting device according to claim 3, characterized in that: The clamping unit (2) further comprises: A transmission shaft (26) is rotatably mounted on the frame (1) and is threadably connected to the support frame (24); A rotary driver (27) is arranged on the frame (1), and outputs power for driving the transmission shaft (26) to rotate.

5. A cardboard transporting device according to claim 1, characterized in that: Also includes: A slide rail (14) is arranged on the frame (1), and the slide rail (14) is L-shaped as a whole; The auxiliary belt (15) is slidably arranged on the slide rail (14); after the auxiliary belt (15) slides, the auxiliary belt (15) is horizontally laid below the clamping unit (2) or vertically placed on one side of the frame (1).

6. A cardboard transporting device according to claim 1, characterized in that: It also includes a loading unit (3), wherein the loading unit (3) includes: A lifting frame (31) is arranged on one side of the frame (1); A lifting platform (32) is slidably disposed on the lifting frame (31) and is used for conveying paperboards up and down; A pushing member (33) is slidably arranged on the lifting frame (31); after the pushing member (33) slides, it is used to push the cardboard on the lifting platform (32) to the clamping unit (2).

7. A cardboard transporting device according to claim 6, characterized in that: The feeding unit (3) further comprises: A conveying frame (34) is arranged on one side of the lifting frame (31), and the conveying frame (34) and the frame (1) are respectively located on two sides of the lifting frame (31); A plurality of conveying rollers (35) distributed at intervals are all rotatably arranged on the conveying frame (34); after the conveying rollers (35) rotate, they are used to convey the cardboard close to the lifting platform (32).

8. A cardboard transporting device according to claim 1, characterized in that: It also includes a material receiving unit (4), wherein the material receiving unit (4) includes: A lifting frame (41) slidably disposed on the frame (1); A material receiving platform (42) is detachably arranged on the lifting frame (41) and is used to receive cardboard; A plurality of discharge rollers (43) are arranged to rotate relative to the frame (1) at intervals, and after the lifting frame (41) slides, some of the discharge rollers (43) come into contact with or separate from the material receiving platform (42).

9. A cardboard transporting device according to claim 1, characterized in that: Also includes: A plurality of photoelectric sensors (16) are arranged on the frame (1) and are located above the clamping unit (2).

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