A sheet cross-cutting, winding and rewinding machine

Abstract

This utility model discloses a sheet cross-cutting and winding machine, belonging to the technical field of winding machines. It includes a base, with a winding frame fixedly connected to the top of the base. One side of the winding frame has a cross-cutting component for cutting and assisting in winding the sheet. A cross is rotatably connected to the inner side of the winding frame. A winding roller and a guide roller are located inside the cross. The guide roller is rotatably connected to the cross at both ends and is positioned on one side of the winding roller. Both ends of the winding roller are rotatably connected to the cross via detachable snap-fit ​​connectors. By connecting the winding roller to the cross via detachable snap-fit ​​connectors, it is convenient to quickly replace the winding roller, reducing downtime, improving work efficiency, and reducing the difficulty of disassembly and assembly for operators. Simultaneously, in conjunction with a pressure roller supported by a concave frame and pressure components above the winding roller, elastic pressure can be applied to the sheet during the winding process, solving the problem of loose and wrinkled rolls caused by uneven winding tension in traditional equipment, and ensuring winding regularity.

Description

Technical Field

[0001] This utility model relates to the field of winding machine technology, and in particular to a sheet cross-cutting and winding machine. Background Technology

[0002] Sheet cross-cutting and rewinding machines are automated mechanical equipment widely used in the production and processing of continuous sheet materials such as plastics, paper, metal foil, and non-woven fabrics. The core function is to accurately cut the continuous sheet material (i.e., "unwind") into rolls and then reassemble the cut sheet material into regular rolls (i.e., "rewind"), forming an integrated processing flow of "unwinding-cutting-rewinding" to meet the needs of downstream industries for sheet materials of specific lengths and specifications.

[0003] In existing technologies, sheet cross-cutting and winding machines face challenges in actual use. Due to the thinness and varying toughness of the sheets, it is difficult to apply uniform and continuous pressure during winding. Uneven winding tension can easily lead to loose, wrinkled, and misaligned finished rolls, affecting not only the roll's appearance but also causing sheet detachment and damage during storage, transportation, or secondary processing, severely reducing product qualification rates. Although some equipment is equipped with simple pressure roller structures, the pressure of the rollers cannot be flexibly adjusted according to the sheet thickness and material. When the sheet thickness fluctuates slightly or the winding diameter gradually increases, the pressure rollers can easily cause excessive compression and deformation, or fail to provide effective pressure due to insufficient pressure, making it difficult to adapt to the winding needs of different sheet specifications.

[0004] Meanwhile, the take-up roller on the sheet cross-cutting and winding machine is the core component that carries the finished roll of sheet material. After each roll of sheet material is wound up, it needs to be disassembled and replaced with a new take-up roller to continue production. Currently, most equipment uses traditional connection methods such as multiple sets of bolts or clamps to fix the take-up rollers. When disassembling, special tools are needed to gradually loosen the fixing parts. The operation steps are numerous and time-consuming, which not only brings inconvenience to the disassembly and assembly of the take-up rollers, but also affects work efficiency. Utility Model Content

[0005] The main objective of this invention is to provide a sheet cross-cutting, winding, and rewinding machine that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A sheet cross-cutting and winding machine includes a base, a winding frame is fixedly connected to the top of the base, and a cross-cutting piece for cutting and assisting in winding the sheet is provided on one side of the winding frame;

[0008] The inner side of the winding frame is rotatably connected to a cross, and the inner side of the cross is provided with a winding roller and a guide roller. The two ends of the guide roller are rotatably connected to the cross, and the guide roller is located on one side of the winding roller. The two ends of the winding roller are rotatably connected to the cross through detachable snap-fit ​​parts.

[0009] The outer side of the cross is provided with a drive component to control the rotation of the take-up roller;

[0010] A pressure roller is provided above the take-up roller, and a concave frame is fixedly connected to the outside of the cross. A pressure member for applying elastic pressure to the pressure roller is provided inside the concave frame.

[0011] Preferably, the snap-fit ​​component includes a connecting seat and a rotating disk. The rotating disk is rotatably connected to the inside of the cross. One side of the connecting seat is fixedly connected to the rotating disk, and the other side of the connecting seat is provided with a positioning groove. Both ends of the take-up roller are fixedly connected with positioning plates that are positioned and inserted into the positioning groove. A locking component is provided between the positioning groove and the positioning plate to prevent the positioning plate from detaching.

[0012] Preferably, the locking component includes a movable groove on the outer wall of the connecting seat, a groove at the bottom of the movable groove, an opening communicating with the positioning groove on one side of the movable groove, a movable plate slidably connected inside the movable groove, a connecting block slidably connected to the groove on one side of the movable plate, and an elastic element for controlling the resetting of the connecting block inside the groove.

[0013] Preferably, the elastic element includes a fixed rod fixedly connected in the groove, a connecting hole is provided on the connecting block, the connecting hole is slidably connected to the fixed rod, and a second spring is fitted on the outside of the fixed rod, the second spring being fixedly connected between the opposite surfaces of the connecting block and the groove.

[0014] Preferably, a limiting plate is fixedly connected to one side of the movable plate, the limiting plate passes through the opening and is inserted into a limiting groove opened on one side of the positioning plate, and a limiting member is provided on one side of the limiting plate to restrict the horizontal movement of the movable plate.

[0015] Preferably, the limiting component includes a knob, and the movable plate has a second rotating hole on the side away from the connecting block. The knob is rotatably connected to the second rotating hole. A limiting ring for positioning and rotating the knob is fixedly connected to the outer wall of the knob. The limiting ring is rotatably connected to a rotating ring groove on the inner wall of the second rotating hole. A threaded short rod is fixedly connected to one end of the knob. A side block is fixedly connected to the outer wall of the connecting seat on the side away from the positioning groove. A threaded hole for threaded connection with the threaded short rod is opened on one side of the side block.

[0016] Preferably, the driving component includes a drive motor, which is fixedly connected to the outside of one of the crosses, and the output end of the drive motor is fixedly connected to the rotating disk.

[0017] Preferably, the pressure component includes an adjusting plate, two guide rods are fixedly connected to the top of the adjusting plate, the guide rods are inserted into guide holes opened on the top of the concave frame, a first spring is fitted on the outside of the guide rods, the first spring is fixedly connected between the adjusting plate and the concave frame, sliders are fixedly connected to both sides of the adjusting plate, the sliders are slidably connected to sliding openings opened on both sides of the concave frame, two fixing blocks are fixedly connected to the bottom of the adjusting plate, and rotating rods are fixedly connected to both ends of the pressure roller, the rotating rods are rotatably connected to a first rotating hole opened on one side of the fixing block.

[0018] Preferably, the cross-cutting component includes a cross-cutting frame, which is slidably connected to a guide rail mounted on the top of the base. A cylinder for controlling the horizontal movement of the cross-cutting frame is mounted on the top of the base. The cross-cutting frame is provided with a positioning roller for positioning the sheet material. A cutter for lateral reciprocating movement is provided on the side of the cross-cutting frame near the winding roller for cutting the sheet material.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By connecting the take-up roller to the cross with a detachable snap-fit ​​connector, it is easy to quickly replace the take-up roller, reduce downtime, improve work efficiency, and reduce the difficulty of disassembly and assembly for operators. At the same time, in conjunction with the pressure roller above the take-up roller, which is supported by a concave frame and pressure components, elastic pressure can be applied to the sheet during the winding process, solving the problem of loose and wrinkled rolls caused by uneven winding tension in traditional equipment, and ensuring the neatness of the winding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the winding section structure of this utility model;

[0023] Figure 3 This is a structural disassembly diagram of the pressure component of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the connector of this utility model;

[0025] Figure 5 This is a structural disassembly diagram of the snap-fit ​​component of this utility model;

[0026] Figure 6 This is a cross-sectional view of the movable plate of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the winding roller of this utility model.

[0028] In the diagram: 1. Base; 2. Rewinding frame; 3. Cross-cutting frame; 4. Guide rail; 5. Cylinder; 6. Positioning roller; 7. Cutter; 8. Cross-shaped component; 9. Drive motor; 10. Rotary disk; 11. Connecting seat; 12. Rewinding roller; 13. Guide roller; 14. Concave frame; 15. Slide opening; 16. Guide hole; 17. Adjusting plate; 18. Slider; 19. Guide rod; 20. First spring; 21. Fixing block; 22. First rotating hole; 3. Pressure roller; 24. Rotating rod; 25. Positioning groove; 26. Side block; 27. Screw hole; 28. Movable groove; 29. ​​Groove; 30. Through opening; 31. Fixed rod; 32. Second spring; 33. Movable plate; 34. Connecting block; 35. Connecting hole; 36. Limiting plate; 37. Second rotating hole; 38. Rotating ring groove; 39. Knob; 40. Limiting ring; 41. Threaded short rod; 42. Positioning plate; 43. Limiting groove. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] like Figure 1 - Figure 7 As shown, a sheet cross-cutting and winding machine includes a base 1, a winding frame 2 is fixedly connected to the top of the base 1, and a cross-cutting piece for cutting and assisting in winding the sheet is provided on one side of the winding frame 2.

[0031] The inner side of the take-up frame 2 is rotatably connected to a cross 8. The inner side of the cross 8 is provided with a take-up roller 12 and a guide roller 13. The two ends of the guide roller 13 are rotatably connected to the cross 8. The guide roller 13 is located on one side of the take-up roller 12. The two ends of the take-up roller 12 are rotatably connected to the cross 8 through detachable snap-fit ​​parts.

[0032] The outer side of the cross 8 is provided with a drive component to control the rotation of the take-up roller 12;

[0033] A pressure roller 23 is provided above the take-up roller 12, and a concave frame 14 is fixedly connected to the outside of the cross 8. The concave frame 14 is provided with a pressure member for applying elastic pressure to the pressure roller 23.

[0034] like Figure 4 and Figure 7As shown, the snap-fit ​​component includes a connecting seat 11 and a rotating disk 10. The rotating disk 10 is rotatably connected to the inside of the cross 8. One side of the connecting seat 11 is fixedly connected to the rotating disk 10, and the other side of the connecting seat 11 is provided with a positioning groove 25. The two ends of the take-up roller 12 are fixedly connected with positioning plates 42 that are positioned and inserted into the positioning groove 25. A locking component is provided between the positioning groove 25 and the positioning plate 42 to prevent the positioning plate 42 from disengaging. The other side of the connecting seat 11 is provided with a positioning groove 25 that is positioned and inserted into the positioning plates 42 at both ends of the take-up roller 12, thereby achieving the initial positioning of the take-up roller 12 and simplifying the installation and disassembly process of the take-up roller 12.

[0035] like Figure 4 - Figure 6 As shown, the locking component includes a movable groove 28 on the outer wall of the connecting seat 11, a groove 29 at the bottom of the movable groove 28, and an opening 30 on one side of the movable groove 28 that communicates with the positioning groove 25. A movable plate 33 is slidably connected inside the movable groove 28, and a connecting block 34 is slidably connected to the groove 29 on one side of the movable plate 33. An elastic element for controlling the resetting of the connecting block 34 is provided in the groove 29. The locking component is set between the positioning groove 25 and the positioning plate 42 and includes the movable groove 28, the groove 29, the movable plate 33, the connecting block 34 and the elastic element. The movable plate 33 slides in the movable groove 28 and is connected to the elastic element in the groove 29 through the connecting block 34 to realize the resetting function of the movable plate 33. When the positioning plate 42 is inserted into the positioning groove 25, the movable plate 33 is reset under the action of the elastic element. The limiting plate 36 passes through the opening 30 and is inserted into the limiting groove 43 of the positioning plate 42 to prevent the positioning plate 42 from falling off, thereby ensuring the stable connection of the winding roller 12.

[0036] like Figure 4 - Figure 6 As shown, the elastic element includes a fixed rod 31 fixedly connected in the groove 29, a connecting hole 35 is provided on the connecting block 34, the connecting hole 35 is slidably connected to the fixed rod 31, and a second spring 32 is fitted on the outside of the fixed rod 31. The second spring 32 is fixedly connected between the opposite surfaces of the connecting block 34 and the groove 29. When the movable plate 33 is slid by an external force, the connecting block 34 compresses the second spring 32. After the external force disappears, the second spring 32 restores its deformation and pushes the connecting block 34 and the movable plate 33 to reset, ensuring that the limiting plate 36 is always inserted into the limiting groove 43.

[0037] like Figure 4 - Figure 7 As shown, a limiting plate 36 is fixedly connected to one side of the movable plate 33. The limiting plate 36 passes through the opening 30 and is inserted into the limiting groove 43 opened on one side of the positioning plate 42. A limiting member is provided on one side of the limiting plate 36 to restrict the horizontal movement of the movable plate 33. After the limiting plate 36 is inserted into the limiting groove 43, it can ensure that the winding roller 12 will not fall off after being connected.

[0038] like Figure 4and Figure 5 As shown, the limiting component includes a knob 39. A second rotating hole 37 is provided on the side of the movable plate 33 away from the connecting block 34. The knob 39 is rotatably connected to the second rotating hole 37. A limiting ring 40 for positioning the knob 39 is fixedly connected to the outer wall of the knob 39. The limiting ring 40 is rotatably connected to a rotating ring groove 38 on the inner wall of the second rotating hole 37. A threaded short rod 41 is fixedly connected to one end of the knob 39. A side block 26 is fixedly connected to the outer wall of the connecting seat 11 away from the positioning groove 25. A threaded hole 27 for threaded connection with the threaded short rod 41 is provided on one side of the side block 26. Rotating the knob 39 causes the threaded short rod 41 to screw into or out of the threaded hole 27, thereby securing the knob 39. The movable plate 33 is fixed or released to further ensure the stable insertion of the limiting plate 36 or allow it to be pulled out, which facilitates the installation and disassembly of the take-up roller 12. Compared with the prior art, it is only necessary to push the movable plate 33 by the knob 39 and then rotate the knob 39 to make the threaded short rod 41 threadedly connected to the side block 26, so as to disassemble the take-up roller 12. Conversely, after rotating the knob 39 in the opposite direction to release the fixation of the movable plate 33, the movable plate 33 is reset under the elastic action of the second spring 32, and the limiting plate 36 is inserted into the limiting groove 43, so as to complete the connection and fixation of the take-up roller 12 without the need for bolts or other connecting parts and auxiliary tools.

[0039] like Figure 1 and Figure 2 As shown, the driving component includes a drive motor 9, which is fixedly connected to the outside of one of the crosses 8. The output end of the drive motor 9 is fixedly connected to the rotating disk 10. When the drive motor 9 works, it drives the rotating disk 10 and the connecting seat 11 to rotate, thereby driving the winding roller 12 to rotate and realize the winding function of the sheet.

[0040] like Figure 3 As shown, the pressure component includes an adjusting plate 17. Two guide rods 19 are fixedly connected to the top of the adjusting plate 17. The guide rods 19 are inserted into the guide holes 16 opened on the top of the concave frame 14. A first spring 20 is fitted on the outside of the guide rods 19. The first spring 20 is fixedly connected between the adjusting plate 17 and the concave frame 14. Slider blocks 18 are fixedly connected to both sides of the adjusting plate 17. The sliders 18 are slidably connected to the sliding openings 15 opened on both sides of the concave frame 14. Two fixing blocks 21 are fixedly connected to the bottom of the adjusting plate 17. Rotating rods 24 are fixedly connected to both ends of the pressure roller 23. The rotating rods 24 are rotatably connected to the first rotating hole 22 opened on one side of the fixing block 21. The first spring 20 provides elastic pressure so that the pressure roller 23 always presses tightly on the sheet on the winding roller 12. As the winding diameter increases, the adjusting plate 17 slides upward through the guide rods 19 and sliders 18 to maintain a stable pressing force and prevent the roll from loosening and wrinkling.

[0041] like Figure 3As shown, the cross-cutting component includes a cross-cutting frame 3, which is slidably connected to a guide rail 4 mounted on the top of the base 1. A cylinder 5 is mounted on the top of the base 1 to control the horizontal movement of the cross-cutting frame 3. A positioning roller 6 for positioning the sheet is provided on the cross-cutting frame 3. The cylinder 5 can drive the cross-cutting frame 3 to move horizontally along the guide rail 4 via a sliding block to ensure that the positioning roller 6 presses the sheet tightly against the take-up roller 12. A cutter 7 for lateral reciprocating movement is provided on the side of the cross-cutting frame 3 near the take-up roller 12 for cutting the sheet. The reciprocating horizontal movement of the cutter 7 can be achieved by a screw drive structure, a belt drive structure, or other existing mechanical transmission technology to ensure that the sheet is cut laterally.

[0042] The specific working principle of this sheet cross-cutting, winding, and rewinding machine is as follows:

[0043] The sheet first passes through the cross-cutting area. Driven by the cylinder 5, the cross-cutting frame 3 moves horizontally along the guide rail 4 installed on the top of the base 1. The positioning roller 6 moves accordingly and presses the sheet tightly against one side of the take-up roller 12, ensuring that the sheet is accurately and stably positioned during the subsequent cutting process. When the sheet reaches the appropriate cutting position, the cutter 7 on the side of the cross-cutting frame 3 near the take-up roller 12 moves reciprocally horizontally through a screw drive structure, belt drive structure or other existing mechanical transmission technology, thereby cutting the sheet laterally.

[0044] After being cut, the sheet enters the winding stage. The cross 8, which is rotatably connected to the inside of the winding frame 2, serves as a key support structure. The inside of the cross 8 is equipped with a winding roller 12 and a guide roller 13. The two ends of the guide roller 13 are rotatably connected to the cross 8, which guides the sheet and allows it to smoothly reach the winding roller 12. During winding, the drive component on the outside of the cross 8 works. The drive motor 9 is fixedly connected to the outside of one of the crosses 8, and its output end is fixedly connected to the rotating disk 10. The drive motor 9 drives the rotating disk 10 and the connecting seat 11 to rotate, thereby driving the winding roller 12 to rotate and realize the winding function of the sheet.

[0045] During the winding process, as the sheet is continuously wound onto the winding roller 12, it drives the pressure roller 23 to rotate synchronously. The rotating rods 24 at both ends of the pressure roller 23 will rotate within the first rotating holes 22 opened on the side wall of the fixed block 21. As the sheet thickens during winding, the pressure roller 23 will be subjected to an upward squeezing force from the thickness of the sheet. The adjusting plate 17 will move upward, and the sliders 18 on both sides of the adjusting plate 17 will slide within the sliding openings 15 opened on both sides of the concave frame 14. The guide rod 19 at the top of the adjusting plate 17 will pass through the guide hole 16 opened at the top of the concave frame 14 to adjust the adjusting plate 17. The first spring 20, which is fitted on the guide rod 19 and fixed between the concave frame 14 and the adjusting plate 17, is forced to tighten. After the first spring 20 is forced to tighten, it will apply a reverse elastic stretching force to the adjusting plate 17 and transmit the elastic force to the pressure roller 23. This ensures that the pressure roller 23 can press the sheet onto the take-up roller 12 under the elastic force during the process of the sheet being wound on the take-up roller 12. This prevents the sheet from becoming loose on the take-up roller 12 and can provide a stable pressing force as the thickness of the sheet on the take-up roller 12 changes.

[0046] When the take-up roller 12 needs to be disassembled after it has finished winding the sheet, the movable plate 33 is moved outward by the knob 39. The movable plate 33 will slide in the movable groove 28, and drive the connecting block 34 to slide along the fixed rod 31 in the groove 29 through the connecting hole 35 on the side wall. This forces the second spring 32 fitted on the fixed rod 31 to tighten. At the same time, the limiting plate 36 is moved out of the limiting groove 43 and into the through port 30. After the threaded short rod 41 is blocked by the side block 26, the knob 39 is rotated and the movable plate 33 is continuously pushed. The knob 39 will rotate in the second rotating hole 37, and the limiting ring 40 on the outer wall of the knob 39 will rotate in the rotating ring groove 38 to achieve the positioning rotation of the knob 39. This will drive the threaded short rod 41 to rotate and connect it with the threaded hole 27 on the side wall of the side block 26 until it can no longer be rotated. After turning knob 39, the movable plate 33 is restricted, preventing it from resetting under the elastic action of the second spring 32. After disconnecting the other end of the take-up roller 12 in the same way, remove the take-up roller 12 from the connecting seats 11, so that the positioning plate 42 is disengaged from the positioning groove 25. This completes the disassembly operation of the take-up roller 12. Then, reinstall the new take-up roller 12 between the connecting seats 11. After inserting the positioning plates 42 at both ends of the take-up roller 12 into the positioning groove 25, rotate knob 39 in the opposite direction to completely remove the fixing rod 31 from the screw hole 27. The second spring 32 will then elastically extend and push the connecting block 34 inward, causing the connecting block 34 to move the movable plate 33 synchronously until the limiting plate 36 passes through the through 30 and is reinserted into the limiting groove 43, thus fixing the take-up roller 12 between the connecting seats 11, thereby facilitating the disassembly and assembly of the take-up roller 12.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheet cross-cutting and winding machine, comprising a base (1), wherein a winding frame (2) is fixedly connected to the top of the base (1), and a cross-cutting piece for cutting and assisting in winding the sheet is provided on one side of the winding frame (2); characterized in that The inside of the take-up frame (2) is rotatably connected to a cross (8). The inside of the cross (8) is provided with a take-up roller (12) and a guide roller (13). The two ends of the guide roller (13) are rotatably connected to the cross (8). The guide roller (13) is located on one side of the take-up roller (12). The two ends of the take-up roller (12) are rotatably connected to the cross (8) through detachable snap-fit ​​parts. The outer side of the cross (8) is provided with a drive component for controlling the rotation of the take-up roller (12); A pressure roller (23) is provided above the take-up roller (12), and a concave frame (14) is fixedly connected to the outside of the cross (8). The concave frame (14) is provided with a pressure member for applying elastic pressure to the pressure roller (23).

2. A sheet cross-cut overwind winder as claimed in claim 1, characterized in that: The snap-fit ​​component includes a connecting seat (11) and a rotating disk (10). The rotating disk (10) is rotatably connected to the inside of the cross (8). One side of the connecting seat (11) is fixedly connected to the rotating disk (10). The other side of the connecting seat (11) is provided with a positioning groove (25). The two ends of the take-up roller (12) are fixedly connected with positioning plates (42) that are positioned and inserted into the positioning groove (25). A locking component is provided between the positioning groove (25) and the positioning plate (42) to prevent the positioning plate (42) from disengaging.

3. A sheet cross-cut overwind winder as claimed in claim 2, characterized in that: The locking component includes a movable groove (28) on the outer wall of the connecting seat (11), a groove (29) is provided at the bottom of the movable groove (28), a through opening (30) communicating with the positioning groove (25) is provided on one side of the movable groove (28), a movable plate (33) is slidably connected inside the movable groove (28), a connecting block (34) is provided on one side of the movable plate (33) and slidably connected with the groove (29), and an elastic element for controlling the resetting of the connecting block (34) is provided in the groove (29).

4. A sheet cross-cut overwind winder as claimed in claim 3, characterized in that: The elastic element includes a fixed rod (31) fixedly connected in the groove (29), a connecting hole (35) is provided on the connecting block (34), the connecting hole (35) is slidably connected to the fixed rod (31), and a second spring (32) is fitted on the outside of the fixed rod (31), the second spring (32) is fixedly connected between the opposite surfaces of the connecting block (34) and the groove (29).

5. A sheet cross-cut take-up reel according to claim 3, characterized in that: A limiting plate (36) is fixedly connected to one side of the movable plate (33). The limiting plate (36) passes through the opening (30) and is inserted into the limiting groove (43) opened on one side of the positioning plate (42). A limiting member is provided on one side of the limiting plate (36) to restrict the horizontal movement of the movable plate (33).

6. A sheet cross-cut take-up reel according to claim 5, characterized in that: The limiting component includes a knob (39). The movable plate (33) has a second rotating hole (37) on the side away from the connecting block (34). The knob (39) is rotatably connected to the second rotating hole (37). A limiting ring (40) for positioning and rotating the knob (39) is fixedly connected to the outer wall of the knob (39). The limiting ring (40) is rotatably connected to the rotating ring groove (38) on the inner wall of the second rotating hole (37). A threaded short rod (41) is fixedly connected to one end of the knob (39). A side block (26) is fixedly connected to the outer wall of the connecting seat (11) on the side away from the positioning groove (25). A screw hole (27) for threaded connection with the threaded short rod (41) is opened on one side of the side block (26).

7. A sheet cross-cut take-up reel according to claim 1 wherein: The driving component includes a drive motor (9), which is fixedly connected to the outside of one of the crosses (8), and the output end of the drive motor (9) is fixedly connected to the rotating disk (10).

8. A sheet cross-cut take-up reel according to claim 1, characterized in that: The pressure component includes an adjusting plate (17), with two guide rods (19) fixedly connected to the top of the adjusting plate (17). The guide rods (19) are inserted into the guide holes (16) opened on the top of the concave frame (14). A first spring (20) is fitted on the outside of the guide rods (19). The first spring (20) is fixedly connected between the adjusting plate (17) and the concave frame (14). Slider blocks (18) are fixedly connected to both sides of the adjusting plate (17). The sliders (18) are slidably connected to the sliding openings (15) opened on both sides of the concave frame (14). Two fixing blocks (21) are fixedly connected to the bottom of the adjusting plate (17). Rotating rods (24) are fixedly connected to both ends of the pressing roller (23). The rotating rods (24) are rotatably connected to the first rotating hole (22) opened on one side of the fixing block (21).

9. A sheet cross-cut take-up reel according to claim 1, characterized in that: The cross-cutting component includes a cross-cutting frame (3), which is slidably connected to a guide rail (4) mounted on the top of the base (1). A cylinder (5) for controlling the horizontal movement of the cross-cutting frame (3) is mounted on the top of the base (1). A positioning roller (6) for positioning the sheet is provided on the cross-cutting frame (3). A cutter (7) for reciprocating laterally is provided on the side of the cross-cutting frame (3) near the winding roller (12) for cutting the sheet.

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