Slitting device of paper machine

Abstract

The utility model discloses a paper machine slitting device which comprises a connecting frame, a mounting frame arranged below the connecting frame, a quick clamping rod arranged at the bottom end of the connecting frame, a quick clamping sleeve arranged below the mounting frame, a rotating plate rotationally arranged on the outer side of the quick clamping sleeve, a rotating hole formed in the rotating plate, a quick clamping groove formed in the outer side of the quick clamping rod, and a release sleeve rotationally arranged on the outer side of the quick clamping sleeve in a sleeving mode. A connecting shaft is arranged on the inner side of the releasing groove; a quick clamping block is movably arranged in the releasing groove; a matching groove is formed in the side wall of the quick clamping sleeve; a limiting frame is fixedly arranged on one side of the releasing sleeve; according to the guide roller and slitting roller assembly and disassembly device, height adjustment of the guide roller and the slitting roller is achieved, stable installation of the guide roller and the slitting roller is guaranteed while convenient disassembly and assembly of the guide roller and the slitting roller are achieved, and it is guaranteed that slitting work is conducted stably.

Description

Technical Field

[0001] This utility model relates to the field of paper machine slitting technology, and more specifically, to a paper machine slitting device. Background Technology

[0002] Firstly, traditional paper machine slitting devices employ a fixed installation structure. The installation height of the guide rollers and slitting rollers is determined during the equipment manufacturing stage, lacking a flexible height adjustment mechanism. This fixed design reveals significant inadequacy in adaptability when dealing with paper products of different thicknesses and specifications. When processing ultra-thick cardboard or special-specification paper, the fixed roller height cannot provide a suitable paper channel gap, potentially leading to quality defects such as compression deformation, wrinkles, or tears during paper transport. Conversely, when processing thin paper, excessively large channel gaps make paper tension control difficult, affecting slitting accuracy and product quality, and preventing flexible adjustment of tension. Furthermore, different paper production lines have varying requirements for the height of the paper transport path. The fixed-height design limits the equipment's versatility and compatibility in different production environments. Operators cannot optimize and adjust the paper transport path according to actual production needs, which not only affects production efficiency but may also lead to paper quality problems due to inappropriate transport angles and tension distribution.

[0003] Secondly, traditional slitting roller installation methods often employ complex mechanical connection structures, including combinations of multiple bolt fixing points and other fixing methods. This complex installation structure requires operators to follow a strict step sequence during disassembly and assembly. First, a special wrench is needed to loosen multiple bolts of different specifications, then the relevant connecting parts are disassembled, and finally the slitting roller is removed and installed. The entire process requires carrying a variety of professional tools. In actual production environments, when different slitting specifications need to be changed according to customer order requirements, traditional disassembly and assembly methods often require downtime for several hours or even half a day, seriously affecting production continuity and equipment utilization. Traditional time-consuming and labor-intensive replacement methods can no longer meet the requirements of rapid response to market demands. In addition, the complex disassembly and assembly process increases the risk of operational errors. Improper operation may lead to damage to the slitting roller or related components, increasing maintenance costs and downtime risks. At the same time, long-term repetitive operations also increase the labor intensity of maintenance personnel, affecting work efficiency and safety.

[0004] Furthermore, these simplified quick-assembly structures typically employ simple structural connections. While this improves the ease of assembly and disassembly to some extent, the rudimentary and limited structural design results in severely insufficient reliability under equipment operation and heavy load conditions. During actual operation, the slitting blade of a paper machine needs to withstand cutting impact, the reaction force of paper tension, and the dynamic load generated by equipment vibration. Simple fixing structures are prone to loosening or deformation under these complex loads, causing the installation position of the slitting roller to shift. This not only affects slitting accuracy and product quality but may also cause abnormal contact or collision between the slitting blade and other components, leading to equipment failure or even safety accidents. More seriously, when the fixing structure completely fails, the slitting roller may detach during high-speed operation, causing serious damage to the equipment and posing a significant threat to the safety of on-site operators. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a paper machine slitting device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a paper machine slitting device, including a connecting frame, a mounting frame detachably provided below the connecting frame, a quick-clamping rod fixedly connected to the bottom end of the connecting frame, a quick-clamping sleeve detachably provided below the mounting frame, a rotating plate rotatably provided on the outer side of the quick-clamping sleeve, a rotating hole provided on the rotating plate, a quick-clamping groove provided on the outer side of the quick-clamping rod, a release sleeve rotatably fitted on the outer side of the quick-clamping sleeve, a release groove provided on the inner side of the release sleeve, and a connecting shaft fixedly provided on the inner side of the release groove. The release groove is equipped with a quick-locking block, which is rotatably installed in the release groove via a connecting shaft. The side wall of the quick-locking sleeve has a mating groove, and one end of the quick-locking block passes through the mating groove and is engaged in the quick-locking groove. A limiting frame is fixedly provided on one side of the release sleeve, and a limiting rod is slidably provided in the limiting frame. A limiting plate is fixedly connected to one end of the limiting rod. A limiting groove is provided on the outer side of the quick-locking sleeve, and the other end of the limiting rod is inserted into the limiting groove. A limiting sleeve is slidably fitted on the outer side of the quick-locking sleeve, and a top rod is fixedly connected to one side of the limiting sleeve.

[0009] The present invention is further configured such that a fixed frame is provided on the outside of the connecting frame, and both the connecting frame and the mounting frame are slidably disposed in the fixed frame. A support is provided below the fixed frame, and multiple fixed frames are detachably mounted on the top of the support. The structure in which multiple fixed frames are detachably mounted on the top of the support facilitates the modular assembly and maintenance of the equipment, and improves the versatility and scalability of the equipment.

[0010] The present invention is further configured such that a guide roller is rotatably provided between the connecting frame and the mounting frame, and a slitting roller is rotatably provided between the connecting frame and the mounting frame. Multiple slitting blades are provided on the outer side of the slitting roller. The guide roller can effectively guide the paper conveying path, and the multiple slitting blades provided on the outer side of the slitting roller can perform slitting operations.

[0011] This utility model is further configured such that a mating block is detachably provided at the top of the inner side of the fixed frame, and a screw is rotatably connected to the top of the connecting frame. The outer wall of the screw is movably connected to the inner wall of the mating block through a thread, and a handwheel is detachably connected to the top of the screw. This threaded transmission mechanism realizes a precise height adjustment function. The operator can drive the screw to move up and down along the mating block by turning the handwheel, thereby driving the connecting frame and the mounting frame to adjust their height. The operation is simple and convenient, and the adjustment accuracy is high. It effectively solves the technical problem that the traditional fixed installation structure cannot flexibly adjust the height of the guide roller and the slitting roller.

[0012] The present invention is further configured such that the inner side of the fixed frame is symmetrically provided with slide rails, and the outer sides of the connecting frame and the mounting frame are symmetrically provided with slide grooves. The slide grooves are adapted to the slide rails. This guide structure of slide rails and slide grooves ensures the stability and accuracy of the connecting frame and the mounting frame during the lifting process, prevents deviation and shaking during the lifting process, and ensures the precise adjustment of the positions of the guide rollers and the slitting rollers.

[0013] The present invention is further configured such that a plurality of reset springs are connected to one side of the quick-release block, and the other end of the reset spring is in contact with the inner wall of the release groove. This elastic reset mechanism ensures that the quick-release block can automatically reset to the locked position.

[0014] The present invention is further configured such that a connecting spring is movably sleeved on the outer side of the limiting rod, and the two ends of the connecting spring are respectively connected to the limiting plate and the limiting frame. This elastic connection mechanism enables the limiting rod to be reliably inserted in the limiting groove, and the connecting spring provides the necessary restoring force to ensure the accurate positioning of the limiting rod.

[0015] The present invention is further configured such that a top spring is movably sleeved on the outside of the top rod, one end of the top spring is connected to the limiting sleeve, and the other end of the top spring and the top rod both abut against one side of the rotating plate, so that the top rod can reliably exit in the rotating hole, while ensuring the stable reset of the limiting sleeve.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a paper machine slitting device, which has the following beneficial effects:

[0018] 1. A height adjustment mechanism composed of components such as a fixed frame, mating block, connecting frame, screw, handwheel, slide rail, mounting frame, and chute completely solves the technical problem of traditional paper machine slitting devices, which, with their fixed installation structure, cannot flexibly adjust the height of the guide rollers and slitting rollers. Operators synchronously rotate a set of handwheels in the same direction, causing the handwheels to drive the screw connected to the bottom to rotate. This causes the screw to drive the connecting frame and mounting frame, which in turn drive the outer chute along the slide rail, thereby raising or lowering the corresponding guide roller. This achieves the purpose of adjusting the height of the guide roller, allowing for flexible adjustment of the height of the slitting roller and other guide rollers, ensuring paper tension, and effectively solving the problem of... This invention solves the problem that a fixed roller height cannot provide a suitable paper channel gap, leading to quality defects such as compression deformation, wrinkles, or tears during paper transport. It also avoids the problem of excessively large channel gaps causing difficulties in paper tension control, affecting slitting accuracy and product quality when handling thin paper. It enables flexible adjustment of tension, meeting the processing needs of paper products of different thicknesses and specifications. This improves the equipment's versatility and compatibility in different production environments. Operators can optimize and adjust the paper transport path according to actual production needs, effectively improving production efficiency, ensuring appropriate transport angles and tension distribution, and guaranteeing paper quality.

[0019] 2. By employing components such as the quick-clamping rod, quick-clamping slot, quick-clamping sleeve, release sleeve, release groove, connecting shaft, quick-clamping block, connecting shaft, mating groove, and return spring, the technical problem of cumbersome and time-consuming disassembly and assembly caused by the complex mechanical connection structure and multiple bolt fixing points used in traditional slitting roller installation and fixing methods is solved. The operator only needs to rotate the release sleeve forward to make the release groove rotate forward. The release groove drives the quick-clamping block to rotate forward through the connecting shaft. Due to the limiting on one side of the inner wall of the mating groove, one end of the quick-clamping block gradually moves out of the quick-clamping slot. Then, the quick-clamping sleeve is pulled downward to achieve quick clamping. The removal of the slitting roller sleeve eliminates the need for special wrenches to loosen multiple bolts of different sizes and for carrying various professional tools. The entire disassembly and assembly process is simple and intuitive, significantly shortening the replacement time of the slitting roller. It effectively solves the problem that traditional disassembly and assembly methods require downtime of several hours or even half a day, which seriously affects production continuity and equipment utilization. It meets the requirements of rapid response to market demands. At the same time, the simplified operation process reduces the risk of operational errors and avoids the problem that improper operation may damage the slitting roller or related components. It reduces maintenance costs and downtime risks, reduces the labor intensity of maintenance personnel, and improves work efficiency and safety.

[0020] 3. By using components such as a limiting rod, connecting spring, limiting plate, limiting frame, top rod, top spring, limiting sleeve, and rotating plate, the technical problem of insufficient reliability under equipment operation and heavy load conditions caused by the rudimentary and limited structural design of simplified quick-assembly structures is solved. After the slitting roller is installed, the connecting spring pulls the limiting plate, causing the limiting plate to drive the limiting rod into the limiting groove to form a limit. Then, the limiting sleeve is released, and the top spring pushes the limiting sleeve to slide back to its original position, causing the limiting sleeve to drive the top rod to slide back to its original position. Then, the rotating plate is rotated, causing the rotating hole and the top rod to misalign. The top rod supports and limits the limiting sleeve to one side of the rotating plate, preventing the limiting sleeve from sliding. The inner wall of the limiting sleeve limits the outer wall of the limiting plate, preventing the limiting plate and the limiting rod from sliding outward. The limiting rod and the limiting groove cooperate to lock and limit the limiting frame, preventing the limiting frame and the release sleeve from rotating accidentally, thus forming a complete system. The multi-locking protection mechanism effectively resists various complex loads, including the cutting impact force on the slitting blade, the reaction force of paper tension, and the dynamic load generated by equipment vibration. Even under equipment operation and heavy load conditions, it will not loosen or detach, ensuring the stability of the slitting roller's installation position. This effectively prevents the slitting roller's installation position from shifting, which could affect slitting accuracy and product quality. It also avoids the risk of equipment failure or even safety accidents caused by abnormal contact or collision between the slitting blade and other components. At the same time, the stable fixing structure eliminates the safety hazard of the slitting roller potentially detaching during high-speed operation if the fixing structure completely fails, ensuring the safety of the equipment and on-site operators. It also ensures a stable connection between the mounting frame and the connecting frame, thereby ensuring the stable installation of the slitting roller and the stable operation of the slitting process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a papermaking machine slitting device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the dispersed structure of the fixing frame, mounting frame, and screw in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the fast-release sleeve, rotating plate, limiting sleeve and release sleeve in this utility model;

[0024] Figure 4 This is a schematic diagram of the dispersed structure of the quick-release sleeve, rotating plate, quick-release rod, limiting sleeve, and release sleeve in this utility model;

[0025] Figure 5 This is a cross-sectional structural diagram of the quick-release sleeve, rotating plate, quick-release rod, limiting sleeve, and release sleeve in this utility model.

[0026] In the diagram: 1. Connecting frame; 2. Mounting frame; 3. Quick-release lever; 4. Quick-release sleeve; 5. Rotating plate; 6. Rotating hole; 7. Quick-release groove; 8. Release sleeve; 9. Release slot; 10. Connecting shaft; 11. Quick-release block; 12. Mating groove; 13. Limiting frame; 14. Limiting rod; 15. Limiting plate; 16. Limiting groove; 17. Limiting sleeve; 18. Top rod; 19. Fixing frame; 20. Bracket; 21. Guide roller; 22. Sliding roller; 23. Sliding knife; 24. Mating block; 25. Screw; 26. Handwheel; 27. Slide rail; 28. Slide groove; 29. ​​Return spring; 30. Connecting spring; 31. Top spring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A paper machine slitting device includes a connecting frame 1, a mounting frame 2 detachably mounted below the connecting frame 1, a quick-clamping rod 3 fixedly connected to the bottom end of the connecting frame 1, a quick-clamping sleeve 4 detachably mounted below the mounting frame 2, a rotating plate 5 rotatably mounted on the outer side of the quick-clamping sleeve 4, a rotating hole 6 formed on the rotating plate 5, a quick-clamping groove 7 formed on the outer side of the quick-clamping rod 3, a release sleeve 8 rotatably mounted on the outer side of the quick-clamping sleeve 4, a release groove 9 formed on the inner side of the release sleeve 8, a connecting shaft 10 fixedly mounted on the inner side of the release groove 9, and a quick-clamping block 11 movably mounted in the release groove 9. The quick-clamp sleeve 4 is rotatably installed in the release groove 9 via the connecting shaft 10. The side wall of the quick-clamp sleeve 4 has a mating groove 12. One end of the quick-clamp block 11 passes through the mating groove 12 and is inserted into the quick-clamp groove 7. A limiting frame 13 is fixedly provided on one side of the release sleeve 8. A limiting rod 14 is slidably provided in the limiting frame 13. A limiting plate 15 is fixedly connected to one end of the limiting rod 14. A limiting groove 16 is provided on the outer side of the quick-clamp sleeve 4. The other end of the limiting rod 14 is inserted into the limiting groove 16. A limiting sleeve 17 is slidably provided on the outer side of the quick-clamp sleeve 4. A top rod 18 is fixedly connected to one side of the limiting sleeve 17.

[0031] A fixing frame 19 is provided on the outside of the connecting frame 1. Both the connecting frame 1 and the mounting frame 2 are slidably disposed in the fixing frame 19. A bracket 20 is provided below the fixing frame 19. Multiple fixing frames 19 can be detachably installed on the top of the bracket 20.

[0032] A guide roller 21 is rotatably provided between the connecting frame 1 and the mounting frame 2, and a slitting roller 22 is rotatably provided between the connecting frame 1 and the mounting frame 2. Multiple slitting blades 23 are provided on the outer side of the slitting roller 22.

[0033] The top of the inner side of the fixed frame 19 is detachably provided with a mating block 24, and the top of the connecting frame 1 is rotatably connected with a screw 25. The outer wall of the screw 25 is movably connected to the inner wall of the mating block 24 through a thread, and the top of the screw 25 is detachably connected with a handwheel 26.

[0034] The inner side of the fixed frame 19 is symmetrically provided with slide rails 27, and the outer sides of the connecting frame 1 and the mounting frame 2 are symmetrically provided with slide grooves 28, which are adapted to slide rails 27.

[0035] In this embodiment, when the device is needed, the input roller with paper wound on its outer side is first rotated and installed at the front end of the device. Then, the paper is sequentially passed around each guide roller 21 and over the outside of the slitting roller 22, and then around the outside of the guide roller 21 on the other side of the slitting roller 22. The other end of the paper is then fixed to the outside of the external take-up roller. Two symmetrical handwheels 26 form a group. Then, the corresponding group of handwheels 26 is rotated synchronously and in the same direction, so that the handwheels 26 drive the screw 25 connected at the bottom to rotate. Since the screw 25 and the mating block 24 are connected by threads, and the bottom end of the screw 25 is connected to the mating block 24... The frame 1 is rotated and connected, and then the screw 25 moves up and down along the mating block 24. This causes the screw 25 to drive the connecting frame 1 and the mounting frame 2 to slide the outer slide groove 28 along the slide rail 27, thereby driving the corresponding guide roller 21 to rise and fall, achieving the purpose of adjusting the height of the guide roller 21. Then, the height of the slitting roller 22 and other guide rollers 21 can be flexibly adjusted according to the above steps to ensure the tension of the paper. Then, the drive motor connected to one end of the winding roller is driven, so that the winding roller drives the paper to move. At the same time, the slitting blade 23 set on the outside of the slitting roller 22 cuts the paper.

[0036] Please see Figures 3-5 As a further implementation of the overall device: a plurality of reset springs 29 are connected to one side of the quick-release block 11, and the other end of the reset spring 29 is in contact with the inner wall of the release groove 9.

[0037] A connecting spring 30 is movably sleeved on the outer side of the limiting rod 14, and the two ends of the connecting spring 30 are connected to the limiting plate 15 and the limiting frame 13 respectively.

[0038] A top spring 31 is movably sleeved on the outside of the top rod 18. One end of the top spring 31 is connected to the limiting sleeve 17, and the other end of the top spring 31 and the top rod 18 both abut against one side of the rotating plate 5.

[0039] More specifically, when the slitting roller 22 needs to be replaced, first rotate the rotating plate 5 so that the rotating plate 5 drives the rotating hole 6 to rotate to a position concentric with the top rod 18. Then push the limiting sleeve 17 so that the limiting sleeve 17 drives one side of the top rod 18 to slide into the rotating hole 6. The limiting sleeve 17 will cooperate with the rotating plate 5 to press against the top spring 31, so that the limiting sleeve 17 no longer limits the outer wall of the limiting plate 15. Then rotate the release sleeve 8 in the forward direction so that the release sleeve 8 drives one side of the limiting frame 13 to rotate in the forward direction. Then the limiting frame 13 drives the limiting rod 14, the limiting plate 15 and the connecting spring 30 to rotate in the forward direction. Then the inner wall of the limiting groove 16 presses against one end of the limiting rod 14. Since one end of the limiting rod 14 and the edge of the inner wall of the limiting groove 16 are both designed with rounded corners, This causes one end of the limiting rod 14 to slide out of the limiting groove 16, and the limiting rod 14 will drive the other end of the limiting plate 15 to slide outward, causing the limiting plate 15 to drive the connecting spring 30 to stretch outward. At the same time, the release sleeve 8 will drive the inner release groove 9 to rotate in the forward direction, and the release groove 9 will drive the quick-lock block 11 to rotate in the forward direction through the connecting shaft 10, causing one side of the inner wall of the mating groove 12 to press against one side of the quick-lock block 11, causing the quick-lock block 11 to rotate along the connecting shaft 10, causing one end of the quick-lock block 11 to gradually move out of the quick-lock groove 7, and the quick-lock block 11 will gradually be drawn into the release groove 9 and press against the multiple reset springs 29 on one side. Then, the quick-lock sleeve 4 is pulled downward to remove it. Then, the other corresponding quick-lock sleeves 4 are removed by following the above steps. Then, move the mounting frame 2 downwards so that the mounting frame 2 and the connecting frame 1 no longer press the two ends of the slitting roller 22 into the inside. Then, tilt one end of the slitting roller 22 so that one end of the slitting roller 22 is removed from the fixing frame 19. Then, the slitting roller 22 can be pulled outwards to remove it. Then, the slitting roller 22 can be replaced. After the slitting roller 22 is replaced, place the two ends of the slitting roller 22 inside the fixing frames 19 on both sides. Then, slide the mounting frame 2 upwards so that the mounting frame 2 and the connecting frame 1 cooperate to press one end of the slitting roller 22 into the inside. The quick-release lever 3 at the bottom of the connecting frame 1 passes through the reserved mounting hole on the mounting frame 2. Then, rotate the release sleeve 8 in the opposite direction so that the release sleeve 8 drives the limiting rod 14 through the limiting frame 13 on one side. The limiting plate 15 and connecting spring 30 rotate in the opposite direction, and the release sleeve 8 drives the inner release groove 9 to rotate in the opposite direction and reset. Then, the release groove 9 drives the inner connecting shaft 10, reset spring 29 and quick-lock block 11 to rotate in the opposite direction and reset. Then, one side of the outer wall of the quick-lock block 11 gradually moves to the position corresponding to the mating groove 12. Then, multiple reset springs 29 reset and push the quick-lock block 11, so that the quick-lock block 11 moves out of the release groove 9 along the connecting shaft 10, and one end of the quick-lock block 11 passes through the mating groove 12 and locks into the quick-lock groove 7. At this time, the limiting frame 13 just drives the limiting rod 14 and other components to rotate and reset to the position corresponding to the original limiting groove 16. Then, the connecting spring 30 reset and pulls the limiting plate 15, so that the limiting plate 15 drives the limiting rod 14 to slide inward and reset.This causes one end of the limiting rod 14 to be reinserted into the original limiting groove 16. Then, the limiting sleeve 17 is released, and the top spring 31 pushes the limiting sleeve 17 to slide back to its original position. Then, the limiting sleeve 17 drives the top rod 18 on one side to slide back to its original position. When the top spring 31 is fully reset, the top rod 18 no longer passes into the rotating hole 6, and the top rod 18 moves back to the original side of the rotating plate 5. Then, the rotating plate 5 is rotated again, causing the rotating hole 6 to rotate to a position that does not correspond to the top rod 18. Then, the top rod 18 supports the limiting sleeve 17. The limiting sleeve 17 is positioned to one side of the rotating plate 5, preventing it from sliding. The inner wall of the limiting sleeve 17 then limits the outer wall of the limiting plate 15, preventing the limiting plate 15 and the limiting rod 14 from sliding outwards. The limiting rod 14 and the limiting groove 16 then cooperate to lock and limit the limiting frame 13, preventing the limiting frame 13 and the release sleeve 8 from rotating accidentally. This ensures a stable connection between the mounting frame 2 and the connecting frame 1, thereby ensuring the stable installation of the slitting roller 22 and guaranteeing the stable operation of the slitting process.

[0040] In summary, when using or operating the entire device: First, the input roller with paper wound on its outer side is rotated and installed at the front end of the device. Then, the paper passes sequentially around each guide roller 21, over the outside of the slitting roller 22, and then around the outside of the guide roller 21 on the other side of the slitting roller 22. The other end of the paper is then fixed to the outside of the external take-up roller. Two symmetrical handwheels 26 form a group. Then, the corresponding group of handwheels 26 is rotated synchronously and in the same direction, causing the handwheels 26 to drive the screw 25 connected to the bottom to rotate. Since the screw 25 and the mating block 24 are connected by threads, and the screw 25... The bottom end is rotatably connected to the connecting frame 1. Then, the screw 25 will move up and down along the mating block 24, thereby causing the screw 25 to drive the connecting frame 1 and the mounting frame 2 to drive the outer slide groove 28 to slide along the slide rail 27, thereby driving the corresponding guide roller 21 to rise and fall, so as to adjust the height of the guide roller 21. Then, the height of the slitting roller 22 and other guide rollers 21 can be flexibly adjusted according to the above steps to ensure the tension of the paper. Then, the drive motor connected to one end of the winding roller is driven, so that the winding roller drives the paper to move, and at the same time, the slitting blade 23 set on the outside of the slitting roller 22 cuts the paper.

[0041] When the slitting roller 22 needs to be replaced, first rotate the rotating plate 5 so that the rotating plate 5 drives the rotating hole 6 to rotate to a position concentric with the top rod 18. Then push the limiting sleeve 17 so that the limiting sleeve 17 drives one side of the top rod 18 to slide into the rotating hole 6. The limiting sleeve 17 will cooperate with the rotating plate 5 to press against the top spring 31, so that the limiting sleeve 17 no longer limits the outer wall of the limiting plate 15. Then rotate the release sleeve 8 in the forward direction so that the release sleeve 8 drives one side of the limiting frame 13 to rotate in the forward direction. Then the limiting frame 13 drives the limiting rod 14, the limiting plate 15 and the connecting spring 30 to rotate in the forward direction. Then the inner wall of the limiting groove 16 presses against one end of the limiting rod 14. Since one end of the limiting rod 14 and the edge of the inner wall of the limiting groove 16 are both designed with rounded corners, the limiting rod 14 is able to rotate in the forward direction. One end of the positioning rod 14 slides out of the limiting groove 16, and the limiting rod 14 will drive the other end of the limiting plate 15 to slide outward, so that the limiting plate 15 drives the connecting spring 30 to stretch outward. At the same time, the release sleeve 8 will drive the inner release groove 9 to rotate in the forward direction, and the release groove 9 will drive the quick-locking block 11 to rotate in the forward direction through the connecting shaft 10, so that one side of the inner wall of the mating groove 12 presses against one side of the quick-locking block 11, so that the quick-locking block 11 rotates along the connecting shaft 10, so that one end of the quick-locking block 11 gradually moves out of the quick-locking groove 7, and the quick-locking block 11 will gradually be drawn into the release groove 9 and press against the multiple reset springs 29 on one side. Then, the quick-locking sleeve 4 is pulled down to remove it. Then, the other corresponding quick-locking sleeves 4 are removed by following the above steps. The mounting bracket 2 moves downward, so that the mounting bracket 2 and the connecting bracket 1 no longer press the two ends of the slitting roller 22 into the inside. Then, one end of the slitting roller 22 is tilted, so that one end of the slitting roller 22 is removed from the fixing bracket 19. Then, the slitting roller 22 can be pulled outward to remove it. Then, the slitting roller 22 can be replaced. After the slitting roller 22 is replaced, the two ends of the slitting roller 22 are placed inside the fixing brackets 19 on both sides. Then, the mounting bracket 2 is slid upward, so that the mounting bracket 2 and the connecting bracket 1 cooperate to press one end of the slitting roller 22 into the inside. The quick-release lever 3 at the bottom of the connecting bracket 1 passes through the reserved mounting hole on the mounting bracket 2. Then, the release sleeve 8 is rotated in the opposite direction, so that the release sleeve 8 drives the limiting rod 14 and the limiting rod 14 through the limiting bracket 13 on one side. The positioning plate 15 and connecting spring 30 rotate in the opposite direction, and the release sleeve 8 drives the inner release groove 9 to rotate in the opposite direction and reset. Then, the release groove 9 drives the inner connecting shaft 10, reset spring 29, and quick-lock block 11 to rotate in the opposite direction and reset. Then, one side of the outer wall of the quick-lock block 11 gradually moves to the position corresponding to the mating groove 12. Then, multiple reset springs 29 reset and push the quick-lock block 11, so that the quick-lock block 11 moves out of the release groove 9 along the connecting shaft 10, and one end of the quick-lock block 11 passes through the mating groove 12 and locks into the quick-lock groove 7. At this time, the limiting frame 13 drives the limiting rod 14 and other components to rotate and reset to the position corresponding to the original limiting groove 16. Then, the connecting spring 30 reset and pulls the limiting plate 15, so that the limiting plate 15 drives the limiting rod 14 to slide inward and reset.This causes one end of the limiting rod 14 to be reinserted into the original limiting groove 16. Then, the limiting sleeve 17 is released, and the top spring 31 pushes the limiting sleeve 17 to slide back to its original position. Then, the limiting sleeve 17 drives the top rod 18 on one side to slide back to its original position. When the top spring 31 is fully reset, the top rod 18 no longer passes into the rotating hole 6, and the top rod 18 moves back to the original side of the rotating plate 5. Then, the rotating plate 5 is rotated again, causing the rotating hole 6 to rotate to a position that does not correspond to the top rod 18. Then, the top rod 18 supports the limiting sleeve 17. The limiting sleeve 17 is positioned to one side of the rotating plate 5, preventing it from sliding. The inner wall of the limiting sleeve 17 then limits the outer wall of the limiting plate 15, preventing the limiting plate 15 and the limiting rod 14 from sliding outwards. The limiting rod 14 and the limiting groove 16 then cooperate to lock and limit the limiting frame 13, preventing the limiting frame 13 and the release sleeve 8 from rotating accidentally. This ensures a stable connection between the mounting frame 2 and the connecting frame 1, thereby ensuring the stable installation of the slitting roller 22 and guaranteeing the stable operation of the slitting process.

[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paper machine slitting device, comprising a connecting frame (1), characterized in that: A mounting bracket (2) is detachably provided below the connecting frame (1). A quick-clamping rod (3) is fixedly connected to the bottom end of the connecting frame (1). A quick-clamping sleeve (4) is detachably provided below the mounting bracket (2). A rotating plate (5) is rotatably provided on the outside of the quick-clamping sleeve (4). A rotating hole (6) is provided on the rotating plate (5). A quick-clamping groove (7) is provided on the outside of the quick-clamping rod (3). A release sleeve (8) is rotatably fitted on the outside of the quick-clamping sleeve (4). A release groove (9) is provided on the inside of the release sleeve (8). A connecting shaft (10) is fixedly provided on the inside of the release groove (9). A quick-clamping block (11) is movably provided in the release groove (9). The block (11) is rotatably installed in the release groove (9) via the connecting shaft (10). The quick-clamp sleeve (4) has a mating groove (12) on its side wall. One end of the quick-clamp block (11) passes through the mating groove (12) and is inserted into the quick-clamp groove (7). A limiting frame (13) is fixedly provided on one side of the release sleeve (8). A limiting rod (14) is slidably provided in the limiting frame (13). A limiting plate (15) is fixedly connected to one end of the limiting rod (14). A limiting groove (16) is opened on the outside of the quick-clamp sleeve (4). A limiting sleeve (17) is slidably provided on the outside of the quick-clamp sleeve (4). A top rod (18) is fixedly connected to one side of the limiting sleeve (17).

2. The paper machine slitting device according to claim 1, characterized in that: The connecting frame (1) is provided with a fixing frame (19) on the outside. Both the connecting frame (1) and the mounting frame (2) are slidably arranged in the fixing frame (19). A bracket (20) is provided below the fixing frame (19). Multiple fixing frames (19) are detachably installed on the top of the bracket (20).

3. A paper machine slitting device according to claim 2, characterized in that: A guide roller (21) is rotatably provided between the connecting frame (1) and the mounting frame (2), and a slitting roller (22) is rotatably provided between the connecting frame (1) and the mounting frame (2), with a plurality of slitting blades (23) provided on the outer side of the slitting roller (22).

4. A paper machine slitting device according to claim 3, characterized in that: The top of the inner side of the fixed frame (19) is detachably provided with a mating block (24), the top of the connecting frame (1) is rotatably connected with a screw (25), the outer wall of the screw (25) is movably connected to the inner wall of the mating block (24) through a thread, and the top of the screw (25) is detachably connected with a handwheel (26).

5. A paper machine slitting device according to claim 4, characterized in that: The fixed frame (19) is symmetrically provided with slide rails (27) on the inner side, and the connecting frame (1) and the mounting frame (2) are symmetrically provided with slide grooves (28) on the outer side, and the slide grooves (28) are adapted to the slide rails (27).

6. A paper machine slitting device according to any one of claims 1-5, characterized in that: The quick-release block (11) is provided with multiple reset springs (29) on one side, and the other end of the reset spring (29) is in contact with the inner wall of the release groove (9).

7. A paper machine slitting device according to claim 1, characterized in that: A connecting spring (30) is movably sleeved on the outside of the limiting rod (14), and the two ends of the connecting spring (30) are connected to the limiting plate (15) and the limiting frame (13) respectively.

8. A paper machine slitting device according to claim 7, characterized in that: A top spring (31) is movably sleeved on the outside of the top rod (18). One end of the top spring (31) is connected to the limiting sleeve (17), and the other end of the top spring (31) and the top rod (18) abut against one side of the rotating plate (5).

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