Pneumatic slitting knife mounting structure

Abstract

The invention discloses a pneumatic slitting knife mounting structure, and aims to overcome the defects that the adjustment operation of the distance between adjacent slitting knives is inconvenient, and the working efficiency is low. The tool rest comprises a mounting plate and a tool rest body, the tool rest body comprises a main frame body and a lifting frame body, the main frame body is transversely and movably mounted on the mounting plate, an adjusting screw rod is mounted on the mounting plate, and the adjusting screw rod is adaptively connected with the main frame body; a piston cylinder is installed on the main frame body, a telescopic rod of the piston cylinder is connected with a lifting frame body, and a slitting knife is installed on the lifting frame body. According to the pneumatic slitting knife mounting structure, fine adjustment of the positions of the slitting knives can be achieved, and adjustment operation of the distance between the adjacent slitting knives is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of slitting knives, and more particularly to a pneumatic slitting knife installation structure. Background Art

[0002] A slitting knife is a tool that cuts materials into a certain width, and is commonly used for trimming, slitting, and splitting materials. When working, the slitting knife needs to be installed on the knife holder first, and then the knife holder is installed on the slitting equipment. The position of the knife holder is adjusted according to the width requirements of the material to be slit, so that the distance between the two adjacent slitting knives meets the slitting requirements. Since the slitting knife does not have a secondary fine-tuning function, the difficulty of adjustment is increased and the adjustment efficiency is reduced. For example, Chinese patent application No. 2020213724110 discloses a narrow pneumatic slitting knife that can be installed with slitting knives of various specifications to meet various slitting needs of different widths and thicknesses. However, the slitting knife does not have a secondary fine-tuning function, and the spacing adjustment between adjacent slitting knives is inconvenient to operate, and the work efficiency is low. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a pneumatic slitting knife installation structure, which can achieve fine adjustment of the position of the slitting knife and facilitate the adjustment operation of the spacing between adjacent slitting knives.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a pneumatic slitting knife installation structure, including a mounting plate and a knife holder, the knife holder includes a main frame body and a lifting frame body, the main frame body is installed on the mounting plate for horizontal movement, an adjusting screw is installed on the mounting plate, and the adjusting screw is adaptively connected to the main frame body; a piston cylinder is installed on the main frame body, the piston cylinder telescopic rod is connected to the lifting frame body, and the slitting knife is installed on the lifting frame body.

[0005] To install the slitting blade, attach the mounting plate to the slitting equipment and adjust the mounting plate's position according to the required material width. To adjust, first slide the mounting plate for coarse adjustment, bringing the spacing between adjacent slitting blades close to the desired slitting width. Then, rotate the adjustment screw to move the blade carriage for fine adjustment, achieving precise adjustment of the spacing between adjacent slitting blades. Sliding the mounting plate for coarse adjustment, followed by rotating the adjustment screw to move the blade carriage laterally for fine adjustment, ensures precise and reliable adjustment. The piston cylinder then activates, pushing the telescopic rod outward, pressing the slitting blade downward to cut the material.

[0006] The pneumatic slitting knife installation structure of the patent application can realize fine adjustment of the slitting knife position, which facilitates the operation of adjusting the distance between adjacent slitting knives.

[0007] Preferably, a guide column is installed on the mounting plate, a slider is provided on the main frame, a guide hole and a screw hole are provided on the slider, a sliding sleeve is installed in the guide hole, the sliding sleeve is slidably connected to the guide column, and the adjusting screw is connected to the screw hole.

[0008] The adjusting screw fits into the screw hole, and when it rotates, it drives the slider to slide laterally along the guide post, thereby achieving lateral fine-tuning of the main frame. The guide post guides and positions the slider, ensuring accurate and smooth sliding.

[0009] Preferably, a fixed clamp block is installed on the mounting plate, the fixed clamp block is connected to the movable clamp block, the adjusting screw is clamped between the fixed clamp block and the movable clamp block, and a locking screw is connected between the movable clamp block and the fixed clamp block.

[0010] The adjusting screw is clamped between the fixed and movable clamps, ensuring smooth rotation. Loosening the locking screw during screw rotation facilitates further rotation. Once the screw is fully rotated, tightening the locking screw secures the adjusting screw, which in turn secures the slider. This prevents the main frame from shaking during slitting, ensuring precise slitting.

[0011] Preferably, the mounting plate is fastened to the slide, a fixed stop protruding outward is provided at one end of the slide, and the other end of the slide is fastened to the limit stop, and the main frame moves within the range between the fixed stop and the limit stop.

[0012] The fixed stopper and the limit stopper limit the movement range of the main frame to prevent the main frame from sliding off the mounting plate.

[0013] Preferably, the main frame is connected to the fixed block, the lifting frame is connected to the limit block, the limit block is connected to the adjusting stud, the fixed block and the adjusting stud are movably plug-in connected, the adjusting stud is threadedly connected to the positioning nut, and the limit block and the positioning nut are respectively placed on both sides of the fixed block.

[0014] The fixed block is limited between the limit block and the positioning nut, thereby limiting the lifting distance of the lifting frame. At the same time, the adjustment stud is movably connected to the fixed block, making the lifting movement of the lifting frame more stable and reliable.

[0015] Preferably, a guide shaft is fastened to the lifting frame body, a guide hole is provided on the main frame body, and the guide shaft is movably plug-in connected to the guide hole.

[0016] During the lifting and moving process of the lifting frame, the guide shaft slides along the guide hole to prevent the lifting frame from deviating during the lifting and moving process, thereby ensuring the smooth movement of the lifting frame.

[0017] Preferably, a mounting hole is provided on the main frame, the piston cylinder telescopic rod passes through the mounting hole, a reset spring is mounted on the piston cylinder telescopic rod, and the reset spring abuts between the mounting hole and the piston cylinder telescopic rod.

[0018] When the slitting knife is not in use, the piston cylinder telescopic rod can automatically return to its original position under the action of the return spring, thereby realizing the automatic upward movement and return of the slitting knife.

[0019] Preferably, an L-shaped guard plate is installed on the lifting frame body, an avoidance groove is provided at the bottom of the guard plate, and the lower part of the slitting knife extends out of the avoidance groove.

[0020] The guard plate protects the slitting knife. The avoidance groove provides space for the slitting knife to extend and avoid interference.

[0021] Preferably, a connecting seat is installed on the lifting frame body, the connecting seat is rotatably connected to a knife seat, the slitting knife is sleeved on the knife seat, the knife seat is connected to the end cover, and the end cover is pressed tightly on the slitting knife.

[0022] The connection base facilitates installation of the slitting blade. The slitting blade is mounted on the blade base and secured with the end cap for axial positioning, ensuring stability and reliability. To replace the slitting blade, simply move the lifting frame upward, remove the end cap and slitting blade, and replace it. This convenient operation allows for online blade changes, saving time.

[0023] Preferably, an inner bearing and an outer bearing are installed between the connecting seat and the tool holder, and an inner positioning convex ring and an outer positioning convex ring are respectively provided on the outer walls of the inner bearing and the outer bearing. The tool holder is axially positioned between the inner positioning convex ring and the outer positioning convex ring. A positioning cover is connected to the connecting seat, and the positioning cover is pressed on the outer bearing.

[0024] The arrangement of the inner and outer bearings ensures the smooth operation of the toolholder. The toolholder is axially positioned between the inner and outer locating convex rings, achieving axial positioning of the toolholder. The locating cap achieves axial positioning of the inner and outer bearings.

[0025] Compared with the prior art, the present invention has the following beneficial effects: (1) the pneumatic slitting knife installation structure of the present patent application can realize fine adjustment of the slitting knife position, which facilitates the operation of adjusting the spacing between adjacent slitting knives; (2) the slitting knife can be changed online, which is convenient to operate and saves the time of changing the knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a structural diagram of another aspect of the present invention.

[0028] Figure 3 It is a transverse cross-sectional view of the present invention.

[0029] Figure 4 It is a longitudinal sectional view of embodiment 1 of the present invention.

[0030] Figure 5It is a longitudinal sectional view of embodiment 2 of the present invention.

[0031] Figure 6 It is a longitudinal sectional view of embodiment 3 of the present invention.

[0032] In the figure: 1, mounting plate, 2, knife holder, 3, positioning flange, 4, main frame, 5, lifting frame, 6, adjusting screw, 7, piston cylinder, 8, slitting knife, 9, guide column, 10, slider, 11, guide hole, 12, screw hole, 13, fixed clamp, 14, movable clamp, 15, locking screw, 16, slide, 17, fixed block, 18, limit block, 19, fixed block, 20, limit block, 21, adjusting stud, 22, positioning nut, 23, guide shaft, 24, guide hole, 25, mounting hole, 26, reset spring, 27, fixing rod, 28, connecting rod, 29, spring seat, 30, guard plate, 31, avoidance groove, 32, connecting seat, 33, knife holder, 34, end Cover, 35. Movable card strip, 36. Fixed card strip, 37. Inner bearing, 38. Outer bearing, 39. Inner positioning convex ring, 40. Outer positioning convex ring, 41. Positioning cover, 42. Gasket, 43. Pressing screw, 44. Driven gear ring, 45. Mounting seat, 46. Driving motor, 47. Driving gear, 48. Slide, 49. Positioning spring, 50. Pushing screw, 51. Limiting cover, 52. Locking screw, 53. Upper locking hole, 54. Lower locking hole, 55. Pushing plate, 56. Driving plate, 57. Tensioning spring, 58. Push rod, 59. Pushing ring, 60. Engaging gear ring, 61. Mounting sleeve, 62. Ball, 63. Positioning ring, 64. Sinking ring groove, 65. Buffer gasket. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A pneumatic slitting knife installation structure (see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ), comprising a mounting plate 1 and a knife holder 2. Positioning flanges 3 are provided on both the upper and lower sides of the mounting plate 1. When the mounting plate 1 is installed on the slitting equipment, the positioning flanges 3 play a positioning role, ensuring the accuracy of the installation position. The knife holder 2 comprises a main frame body 4 and a lifting frame body 5. The main frame body 4 is arranged above the lifting frame body 5. The main frame body 4 is installed on the mounting plate 1 for horizontal movement. The adjusting screw 6 is installed on the mounting plate 1. The adjusting screw is arranged horizontally and is adapted to be connected to the main frame body 4. A piston cylinder 7 is installed on the main frame body 4. The piston cylinder 7 is a pneumatic cylinder. The telescopic rod of the piston cylinder 7 is connected to the lifting frame body 5. The lifting frame body 5 is installed with a slitting knife 8.

[0034] Guide posts 9 are installed on the mounting plate 1. Two guide posts 9 are symmetrically arranged. The guide posts 9 and the adjusting screw 6 are arranged in parallel. The adjusting screw 6 is placed between the two guide posts 9. A slider 10 is provided on the main frame 4. A guide hole 11 and a screw hole 12 are provided on the slider 10. The guide hole 11 is arranged corresponding to the guide post 9, and the screw hole 12 is arranged corresponding to the adjusting screw 6. A sliding sleeve is installed in the guide hole 11. The sliding sleeve is slidably connected to the guide post 9, and the adjusting screw 6 is connected to the screw hole 12. The adjusting screw 6 is adapted to be connected to the screw hole 12. The adjusting screw 6 rotates to drive the slider 10 to slide horizontally along the guide post 9, thereby achieving lateral fine-tuning of the main frame 4. The guide post 9 guides and positions the slider 10, ensuring the accuracy and stability of the sliding process of the slider 10.

[0035] A fixed clamping block 13 is mounted on the mounting plate 1 and is fastened to the mounting plate 1 by screws. The fixed clamping block 13 is connected to a movable clamping block 14. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, and a locking screw is connected between the movable clamping block 14 and the fixed clamping block 13. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, ensuring the smooth rotation of the adjusting screw 6. The locking screw is loosened during the rotation of the adjusting screw 6 to facilitate the rotation of the adjusting screw 6. After the adjusting screw 6 has completed rotation, the locking screw is tightened to lock the adjusting screw 6 in place, thereby completing the locking of the slider 10, preventing the main frame 4 from shaking during the operation of the slitting knife 8 and ensuring the accuracy of the slitting. A limiting collar is provided on the adjusting screw 6. A limiting section is formed between the limiting collar of the adjusting screw 6 and the end of the nut. The limiting section is clamped between the fixed clamping block 13 and the movable clamping block 14. A positioning groove is set between the movable clamping block 14 and the fixed clamping block 13, and the positioning groove is adapted to the limiting section. The limiting protrusion and the nut are respectively limited at two positions of the positioning groove to prevent axial movement of the adjusting screw 6 during rotation.

[0036] The mounting plate 1 is fastened to a slide 16. A fixed stop 17 protruding outward is provided at one end of the slide 16. A limit stop 18 is fastened to the other end of the slide 16. The main frame 4 moves within the range between the fixed stop 17 and the limit stop 18. The ends of the guide post 9 are connected to the fixed stop 17 and the limit stop 18, respectively. The fixed clamp 13 is fastened to the fixed stop 17 by screws. The adjusting screw 6 passes through the fixed stop 17. The fixed stop 17 and the limit stop 18 limit the range of movement of the main frame 4, preventing it from sliding off the mounting plate 1.

[0037] The main frame 4 is connected to a fixed block 19, while the lifting frame 5 is connected to a limit block 20. The limit block 20 is positioned above the fixed block 19 and connected to an adjustment stud 21. The fixed block 19 and the adjustment stud 21 are movably connected by a plug-in connection. The adjustment stud 21 is threadedly connected to a positioning nut 22. The limit block 20 and the positioning nut 22 are respectively placed on either side of the fixed block 19. The fixed block 19 is positioned between the limit block 20 and the positioning nut 22, thereby limiting the lifting distance of the lifting frame 5. Furthermore, the movably connected adjustment stud 21 to the fixed block 19 ensures smooth and reliable lifting and lowering of the lifting frame 5.

[0038] A guide shaft 23 is fastened to the lifting frame 5, and a guide hole 24 is provided on the main frame 4. The guide shaft 23 is movably connected to the guide hole 24. Two guide shafts 23 are arranged opposite each other, and the telescopic rod of the piston cylinder 7 is placed between the two guide shafts 23. The guide shaft 23 is parallel to the telescopic rod of the piston cylinder 7. During the lifting and lowering movement of the lifting frame 5, the guide shaft 23 slides along the guide hole 24 to prevent deviation of the lifting frame 5 during the lifting and lowering movement, ensuring the smooth movement of the lifting frame 5. A mounting hole 25 is provided on the main frame 4, and the telescopic rod of the piston cylinder 7 passes through the mounting hole 25. A return spring 26 is mounted on the telescopic rod of the piston cylinder 7, and the return spring 26 abuts between the mounting hole 25 and the telescopic rod of the piston cylinder 7. The telescopic rod of the piston cylinder 7 includes a fixed rod 27 and a connecting rod 28, which are tightly connected together. The connecting rod 28 is tightly connected to the lifting frame 5, and the fixed rod 27 is connected to the cylinder body of the piston cylinder 7. A spring seat 29 is installed on the fixed rod 27, and a return spring 26 abuts between the spring seat 29 and the bottom surface of the mounting hole 25. When the slitting knife 8 is not in use, the telescopic rod of the piston cylinder 7 can automatically return to its original position under the action of the return spring 26, thereby automatically moving the slitting knife 8 upward and returning to its original position.

[0039] An L-shaped guard plate 30 is installed on the lifting frame 5. A clearance groove 31 is provided at the bottom of the guard plate 30, and the lower portion of the slitting knife 8 extends out of the clearance groove 31. A connecting seat 32 is installed on the lifting frame 5. A knife holder 33 is rotatably connected to the connecting seat 32. The slitting knife 8 is mounted on the knife holder 33. The knife holder 33 is connected to the end cover 34, and the end cover 34 is pressed against the slitting knife 8. A protruding movable clip 35 is provided on the inner wall of the end cover 34, and a fixed clip 36 protruding outward is provided on the outer wall of the knife holder 33. After the end cover 34 is mounted on the knife holder 33, it is rotated at a certain angle so that the movable clip 35 is snapped onto the fixed clip 36 to achieve axial positioning. The provision of the connecting seat 32 facilitates the installation of the slitting knife 8. The slitting knife 8 is mounted on the knife holder 33 and is pressed against by the end cover 34 to achieve axial positioning, which is stable and reliable. When the slitting knife 8 is replaced, it is only necessary to move the lifting frame 5 upwards, and then the end cover 34 and the slitting knife 8 can be removed for replacement. The operation is convenient and the online knife change operation can be realized, saving time.

[0040] An inner bearing 37 and an outer bearing 38 are installed between the connecting seat 32 and the knife holder 33. An inner positioning ring 39 and an outer positioning ring 40 are respectively provided on the outer walls of the inner and outer bearings 37 and 38. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40. A positioning cap 41 is connected to the connecting seat 32 and is pressed against the outer bearing 38. The arrangement of the inner and outer bearings 37 and 38 ensures the smooth operation of the knife holder 33. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40, achieving axial positioning of the knife holder 33. The positioning cap 41 achieves axial positioning of the inner and outer bearings 37 and 38. Washers 42 are installed on both sides of the slitting blade 8 on the knife holder 33. Several clamping screws 43 are evenly distributed circumferentially connected to the end cap 34. The ends of the clamping screws 43 press against the washers 42 to achieve axial positioning of the slitting blade 8.

[0041] To install and use the slitting blades 8, attach mounting plate 1 to the slitting equipment and adjust the mounting position of mounting plate 1 according to the required width of the material to be slit. To make adjustments, first slide mounting plate 1 to achieve a rough adjustment, bringing the spacing between adjacent slitting blades 8 close to the desired slitting width. Then, rotate adjustment screw 6 to move blade holder 2 for fine adjustment, achieving precise adjustment of the spacing between adjacent slitting blades 8. Sliding mounting plate 1 for rough adjustment is first performed, followed by rotating adjustment screw 6 to move blade holder 2 laterally for fine adjustment, ensuring precise and reliable adjustment. The piston cylinder 7 then activates, pushing its telescopic rod outward, pressing slitting blade 8 downward to slit the material.

[0042] Example 2: A pneumatic slitting knife installation structure (see Figure 1 、 Figure 5 ), comprising a mounting plate 1 and a knife holder 2. Positioning flanges 3 are provided on both the upper and lower sides of the mounting plate 1. When the mounting plate 1 is installed on the slitting equipment, the positioning flanges 3 play a positioning role, ensuring the accuracy of the installation position. The knife holder 2 comprises a main frame body 4 and a lifting frame body 5. The main frame body 4 is arranged above the lifting frame body 5. The main frame body 4 is installed on the mounting plate 1 for horizontal movement. The adjusting screw 6 is installed on the mounting plate 1. The adjusting screw is arranged horizontally and is adapted to be connected to the main frame body 4. A piston cylinder 7 is installed on the main frame body 4. The piston cylinder 7 is a pneumatic cylinder. The telescopic rod of the piston cylinder 7 is connected to the lifting frame body 5. The lifting frame body 5 is installed with a slitting knife 8.

[0043] Guide posts 9 are installed on the mounting plate 1. Two guide posts 9 are symmetrically arranged. The guide posts 9 and the adjusting screw 6 are arranged in parallel. The adjusting screw 6 is placed between the two guide posts 9. A slider 10 is provided on the main frame 4. A guide hole 11 and a screw hole 12 are provided on the slider 10. The guide hole 11 is arranged corresponding to the guide post 9, and the screw hole 12 is arranged corresponding to the adjusting screw 6. A sliding sleeve is installed in the guide hole 11. The sliding sleeve is slidably connected to the guide post 9, and the adjusting screw 6 is connected to the screw hole 12. The adjusting screw 6 is adapted to be connected to the screw hole 12. The adjusting screw 6 rotates to drive the slider 10 to slide horizontally along the guide post 9, thereby achieving lateral fine-tuning of the main frame 4. The guide post 9 guides and positions the slider 10, ensuring the accuracy and stability of the sliding process of the slider 10.

[0044] A fixed clamping block 13 is mounted on the mounting plate 1 and is fastened to the mounting plate 1 by screws. The fixed clamping block 13 is connected to a movable clamping block 14. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, and a locking screw is connected between the movable clamping block 14 and the fixed clamping block 13. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, ensuring the smooth rotation of the adjusting screw 6. The locking screw is loosened during the rotation of the adjusting screw 6 to facilitate the rotation of the adjusting screw 6. After the adjusting screw 6 has completed rotation, the locking screw is tightened to lock the adjusting screw 6 in place, thereby completing the locking of the slider 10, preventing the main frame 4 from shaking during the operation of the slitting knife 8 and ensuring the accuracy of the slitting. A limiting collar is provided on the adjusting screw 6. A limiting section is formed between the limiting collar of the adjusting screw 6 and the end of the nut. The limiting section is clamped between the fixed clamping block 13 and the movable clamping block 14. A positioning groove is set between the movable clamping block 14 and the fixed clamping block 13, and the positioning groove is adapted to the limiting section. The limiting protrusion and the nut are respectively limited at two positions of the positioning groove to prevent axial movement of the adjusting screw 6 during rotation.

[0045] The mounting plate 1 is fastened to a slide 16. A fixed stop 17 protruding outward is provided at one end of the slide 16. A limit stop 18 is fastened to the other end of the slide 16. The main frame 4 moves within the range between the fixed stop 17 and the limit stop 18. The ends of the guide post 9 are connected to the fixed stop 17 and the limit stop 18, respectively. The fixed clamp 13 is fastened to the fixed stop 17 by screws. The adjusting screw 6 passes through the fixed stop 17. The fixed stop 17 and the limit stop 18 limit the range of movement of the main frame 4, preventing it from sliding off the mounting plate 1.

[0046] The main frame 4 is connected to a fixed block 19, while the lifting frame 5 is connected to a limit block 20. The limit block 20 is positioned above the fixed block 19 and connected to an adjustment stud 21. The fixed block 19 and the adjustment stud 21 are movably connected by a plug-in connection. The adjustment stud 21 is threadedly connected to a positioning nut 22. The limit block 20 and the positioning nut 22 are respectively placed on either side of the fixed block 19. The fixed block 19 is positioned between the limit block 20 and the positioning nut 22, thereby limiting the lifting distance of the lifting frame 5. Furthermore, the movably connected adjustment stud 21 to the fixed block 19 ensures smooth and reliable lifting and lowering of the lifting frame 5.

[0047] A guide shaft 23 is fastened to the lifting frame 5, and a guide hole 24 is provided on the main frame 4. The guide shaft 23 is movably connected to the guide hole 24. Two guide shafts 23 are arranged opposite each other, and the telescopic rod of the piston cylinder 7 is placed between the two guide shafts 23. The guide shaft 23 is parallel to the telescopic rod of the piston cylinder 7. During the lifting and lowering movement of the lifting frame 5, the guide shaft 23 slides along the guide hole 24 to prevent deviation of the lifting frame 5 during the lifting and lowering movement, ensuring the smooth movement of the lifting frame 5. A mounting hole 25 is provided on the main frame 4, and the telescopic rod of the piston cylinder 7 passes through the mounting hole 25. A return spring 26 is mounted on the telescopic rod of the piston cylinder 7, and the return spring 26 abuts between the mounting hole 25 and the telescopic rod of the piston cylinder 7. The telescopic rod of the piston cylinder 7 includes a fixed rod 27 and a connecting rod 28, which are tightly connected together. The connecting rod 28 is tightly connected to the lifting frame 5, and the fixed rod 27 is connected to the cylinder body of the piston cylinder 7. A spring seat 29 is installed on the fixed rod 27, and a return spring 26 abuts between the spring seat 29 and the bottom surface of the mounting hole 25. When the slitting knife 8 is not in use, the telescopic rod of the piston cylinder 7 can automatically return to its original position under the action of the return spring 26, thereby automatically moving the slitting knife 8 upward and returning to its original position.

[0048] An L-shaped guard plate 30 is installed on the lifting frame 5. A clearance groove 31 is provided at the bottom of the guard plate 30, and the lower portion of the slitting knife 8 extends out of the clearance groove 31. A connecting seat 32 is installed on the lifting frame 5. A knife holder 33 is rotatably connected to the connecting seat 32. The slitting knife 8 is mounted on the knife holder 33. The knife holder 33 is connected to the end cover 34, and the end cover 34 is pressed against the slitting knife 8. A protruding movable clip 35 is provided on the inner wall of the end cover 34, and a fixed clip 36 protruding outward is provided on the outer wall of the knife holder 33. After the end cover 34 is mounted on the knife holder 33, it is rotated at a certain angle so that the movable clip 35 is snapped onto the fixed clip 36 to achieve axial positioning. The provision of the connecting seat 32 facilitates the installation of the slitting knife 8. The slitting knife 8 is mounted on the knife holder 33 and is pressed against by the end cover 34 to achieve axial positioning, which is stable and reliable. When the slitting knife 8 is replaced, it is only necessary to move the lifting frame 5 upwards, and then the end cover 34 and the slitting knife 8 can be removed for replacement. The operation is convenient and the online knife change operation can be realized, saving time.

[0049] A driven ring gear 44 is provided on the outer wall of the knife holder 33, and a mounting base 45 for lifting and lowering is installed on the lifting frame 5. A drive motor 46 is mounted on the mounting base 45. The output shaft of the drive motor 46 is connected to a driving gear 47, which can mesh with and separate from the driven ring gear 44. When the slitting knife 8 is driven and the pressed object or material is active, the mounting base 45 moves upward, and the driving gear 47 can separate from the driven ring gear 44. At this time, the pressed object or material drives the slitting knife 8 to rotate and cut. When the slitting knife 8 is active, the mounting base 45 moves downward, and the driving gear 47 can mesh with the driven ring gear 44. At this time, the drive motor 46 drives the slitting knife 8 to rotate and cut. This structural arrangement realizes two different operating modes of the slitting knife 8, which is flexible and convenient.

[0050] The lifting frame 5 is provided with a slide groove 48, into which the mounting seat 45 is slidably mounted. A positioning spring 49 is installed between the lower portion of the mounting seat 45 and the side wall of the slide groove 48. A push screw 50 is installed on the lifting frame 5. The lower end of the push screw 50 abuts against the upper portion of the mounting seat 45, and the push screw 50 rotates, thereby pushing the mounting seat 45 downward. The push screw rotates in the opposite direction, and the positioning spring 49 acts to move the mounting seat 45 upward. The open end of the slide groove 48 is connected to a limit cover 51, which is connected to a locking screw 52. The mounting seat 45 is provided with an upper locking hole 53 and a lower locking hole 54. When the mounting seat 45 moves upward, the upper locking hole 53 engages with the locking screw 52, and when the mounting seat 45 moves downward, the lower locking hole 54 engages with the locking screw 52.

[0051] An inner bearing 37 and an outer bearing 38 are installed between the connecting seat 32 and the knife holder 33. An inner positioning ring 39 and an outer positioning ring 40 are respectively provided on the outer walls of the inner and outer bearings 37 and 38. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40. A positioning cap 41 is connected to the connecting seat 32 and is pressed against the outer bearing 38. The arrangement of the inner and outer bearings 37 and 38 ensures the smooth operation of the knife holder 33. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40, achieving axial positioning of the knife holder 33. The positioning cap 41 achieves axial positioning of the inner and outer bearings 37 and 38. Washers 42 are installed on both sides of the slitting blade 8 on the knife holder 33. Several clamping screws 43 are evenly distributed circumferentially connected to the end cap 34. The ends of the clamping screws 43 press against the washers 42 to achieve axial positioning of the slitting blade 8.

[0052] To install and use the slitting blades 8, attach mounting plate 1 to the slitting equipment and adjust the mounting position of mounting plate 1 according to the required width of the material to be slit. To make adjustments, first slide mounting plate 1 to achieve a rough adjustment, bringing the spacing between adjacent slitting blades 8 close to the desired slitting width. Then, rotate adjustment screw 6 to move blade holder 2 for fine adjustment, achieving precise adjustment of the spacing between adjacent slitting blades 8. Sliding mounting plate 1 for rough adjustment is first performed, followed by rotating adjustment screw 6 to move blade holder 2 laterally for fine adjustment, ensuring precise and reliable adjustment. The piston cylinder 7 then activates, pushing its telescopic rod outward, pressing slitting blade 8 downward to slit the material.

[0053] Example 3: A pneumatic slitting knife installation structure (see Figure 1 、 Figure 6 ), comprising a mounting plate 1 and a knife holder 2. Positioning flanges 3 are provided on both the upper and lower sides of the mounting plate 1. When the mounting plate 1 is installed on the slitting equipment, the positioning flanges 3 play a positioning role, ensuring the accuracy of the installation position. The knife holder 2 comprises a main frame body 4 and a lifting frame body 5. The main frame body 4 is arranged above the lifting frame body 5. The main frame body 4 is installed on the mounting plate 1 for horizontal movement. The adjusting screw 6 is installed on the mounting plate 1. The adjusting screw is arranged horizontally and is adapted to be connected to the main frame body 4. A piston cylinder 7 is installed on the main frame body 4. The piston cylinder 7 is a pneumatic cylinder. The telescopic rod of the piston cylinder 7 is connected to the lifting frame body 5. The lifting frame body 5 is installed with a slitting knife 8.

[0054] Guide posts 9 are installed on the mounting plate 1. Two guide posts 9 are symmetrically arranged. The guide posts 9 and the adjusting screw 6 are arranged in parallel. The adjusting screw 6 is placed between the two guide posts 9. A slider 10 is provided on the main frame 4. A guide hole 11 and a screw hole 12 are provided on the slider 10. The guide hole 11 is arranged corresponding to the guide post 9, and the screw hole 12 is arranged corresponding to the adjusting screw 6. A sliding sleeve is installed in the guide hole 11. The sliding sleeve is slidably connected to the guide post 9, and the adjusting screw 6 is connected to the screw hole 12. The adjusting screw 6 is adapted to be connected to the screw hole 12. The adjusting screw 6 rotates to drive the slider 10 to slide horizontally along the guide post 9, thereby achieving lateral fine-tuning of the main frame 4. The guide post 9 guides and positions the slider 10, ensuring the accuracy and stability of the sliding process of the slider 10.

[0055] A fixed clamping block 13 is mounted on the mounting plate 1 and is fastened to the mounting plate 1 by screws. The fixed clamping block 13 is connected to a movable clamping block 14. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, and a locking screw is connected between the movable clamping block 14 and the fixed clamping block 13. The adjusting screw 6 is clamped between the fixed clamping block 13 and the movable clamping block 14, ensuring the smooth rotation of the adjusting screw 6. The locking screw is loosened during the rotation of the adjusting screw 6 to facilitate the rotation of the adjusting screw 6. After the adjusting screw 6 has completed rotation, the locking screw is tightened to lock the adjusting screw 6 in place, thereby completing the locking of the slider 10, preventing the main frame 4 from shaking during the operation of the slitting knife 8 and ensuring the accuracy of the slitting. A limiting collar is provided on the adjusting screw 6. A limiting section is formed between the limiting collar of the adjusting screw 6 and the end of the nut. The limiting section is clamped between the fixed clamping block 13 and the movable clamping block 14. A positioning groove is set between the movable clamping block 14 and the fixed clamping block 13, and the positioning groove is adapted to the limiting section. The limiting protrusion and the nut are respectively limited at two positions of the positioning groove to prevent axial movement of the adjusting screw 6 during rotation.

[0056] The mounting plate 1 is fastened to a slide 16. A fixed stop 17 protruding outward is provided at one end of the slide 16. A limit stop 18 is fastened to the other end of the slide 16. The main frame 4 moves within the range between the fixed stop 17 and the limit stop 18. The ends of the guide post 9 are connected to the fixed stop 17 and the limit stop 18, respectively. The fixed clamp 13 is fastened to the fixed stop 17 by screws. The adjusting screw 6 passes through the fixed stop 17. The fixed stop 17 and the limit stop 18 limit the range of movement of the main frame 4, preventing it from sliding off the mounting plate 1.

[0057] The main frame 4 is connected to a fixed block 19, while the lifting frame 5 is connected to a limit block 20. The limit block 20 is positioned above the fixed block 19 and connected to an adjustment stud 21. The fixed block 19 and the adjustment stud 21 are movably connected by a plug-in connection. The adjustment stud 21 is threadedly connected to a positioning nut 22. The limit block 20 and the positioning nut 22 are respectively placed on either side of the fixed block 19. The fixed block 19 is positioned between the limit block 20 and the positioning nut 22, thereby limiting the lifting distance of the lifting frame 5. Furthermore, the movably connected adjustment stud 21 to the fixed block 19 ensures smooth and reliable lifting and lowering of the lifting frame 5.

[0058] A guide shaft 23 is fastened to the lifting frame 5, and a guide hole 24 is provided on the main frame 4. The guide shaft 23 is movably connected to the guide hole 24. Two guide shafts 23 are arranged opposite each other, and the telescopic rod of the piston cylinder 7 is placed between the two guide shafts 23. The guide shaft 23 is parallel to the telescopic rod of the piston cylinder 7. During the lifting and lowering movement of the lifting frame 5, the guide shaft 23 slides along the guide hole 24 to prevent deviation of the lifting frame 5 during the lifting and lowering movement, ensuring the smooth movement of the lifting frame 5. A mounting hole 25 is provided on the main frame 4, and the telescopic rod of the piston cylinder 7 passes through the mounting hole 25. A return spring 26 is mounted on the telescopic rod of the piston cylinder 7, and the return spring 26 abuts between the mounting hole 25 and the telescopic rod of the piston cylinder 7. The telescopic rod of the piston cylinder 7 includes a fixed rod 27 and a connecting rod 28, which are tightly connected together. The connecting rod 28 is tightly connected to the lifting frame 5, and the fixed rod 27 is connected to the cylinder body of the piston cylinder 7. A spring seat 29 is installed on the fixed rod 27, and a return spring 26 abuts between the spring seat 29 and the bottom surface of the mounting hole 25. When the slitting knife 8 is not in use, the telescopic rod of the piston cylinder 7 can automatically return to its original position under the action of the return spring 26, thereby automatically moving the slitting knife 8 upward and returning to its original position.

[0059] An L-shaped guard plate 30 is installed on the lifting frame 5. A clearance groove 31 is provided at the bottom of the guard plate 30, and the lower portion of the slitting knife 8 extends out of the clearance groove 31. A connecting seat 32 is installed on the lifting frame 5. A knife holder 33 is rotatably connected to the connecting seat 32. The slitting knife 8 is mounted on the knife holder 33. The knife holder 33 is connected to the end cover 34, and the end cover 34 is pressed against the slitting knife 8. A protruding movable clip 35 is provided on the inner wall of the end cover 34, and a fixed clip 36 protruding outward is provided on the outer wall of the knife holder 33. After the end cover 34 is mounted on the knife holder 33, it is rotated at a certain angle so that the movable clip 35 is snapped onto the fixed clip 36 to achieve axial positioning. The provision of the connecting seat 32 facilitates the installation of the slitting knife 8. The slitting knife 8 is mounted on the knife holder 33 and is pressed against by the end cover 34 to achieve axial positioning, which is stable and reliable. When the slitting knife 8 is replaced, it is only necessary to move the lifting frame 5 upwards, and then the end cover 34 and the slitting knife 8 can be removed for replacement. The operation is convenient and the online knife change operation can be realized, saving time.

[0060] A push plate 55 is installed on the lifting frame body 5 for axial movement. The push plate 55 is rotatably connected to the drive plate 56. A tensioning spring 57 is connected between the push plate 55 and the lifting frame body 5. The push plate 55 is connected to the push rod 58. A push ring 59 is threadedly connected to the lifting frame body 5. The end of the push ring 59 is pressed against the push rod 58. The driving motor 46 is installed on the lifting frame body 5. The output shaft of the driving motor 46 is connected to the driving gear 47. A circle of meshing gear ring 60 is set on the driving plate 56. The driving gear 47 is meshed with the meshing gear ring 60 for transmission. The push ring 59 rotates to push the driving plate 56 to move and engage with the knife seat 33.

[0061] After the end face of the drive disc 56 abuts against the end face of the blade holder 33, the drive motor 46 drives the drive disc 56 to rotate, thereby driving the blade holder 33 to rotate. When the slitting knife 8 is driven and the object or material is active, the tension spring 57 acts to separate the drive disc 56 from the blade holder 33. At this time, the object or material drives the slitting knife 8 to rotate and cut. When the slitting knife 8 is active, the push ring 59 rotates to push the drive disc 56 to move and abut against the blade holder 33. At this time, the drive motor 46 drives the slitting knife 8 to rotate and cut. This structural arrangement achieves two different operating modes for the slitting knife 8, providing flexibility and convenience.

[0062] The lifting frame 5 is provided with a mounting sleeve 61, and the push plate 55 and the drive plate 56 are both mounted on the outer wall of the mounting sleeve 61. A ring of balls 62 is mounted on both sides of the drive plate 56. The drive plate 56 is connected to a positioning ring 63, with one ring of balls 62 abutting the end surface of the positioning ring 63, and the other ring of balls 62 abutting the end surface of the drive plate 56. A sunken annular groove 64 is provided on the outer wall of the lifting frame 5. The bottom surface of the sunken annular groove 64 has a through hole, through which the push rod 58 passes. The inner wall of the push ring 59 is threadedly connected to the inner side wall of the sunken annular groove 64. A buffer gasket 65 is provided on the end surface of the drive plate 56. When the buffer gasket 65 abuts the end surface of the tool holder 33, it creates a high friction force, ensuring that the drive plate 56 can drive the tool holder 33 to rotate. Alternatively, a plurality of convex strips are evenly distributed circumferentially on the end surface of the driving disk 56, and the convex strips are radially arranged, and a plurality of radially arranged convex ribs are arranged on the end surface of the knife seat 33. After the driving disk 56 contacts the knife seat 33, the driving disk 56 rotates to make the convex strips fit against the side of the rib for positioning and locking, ensuring that the driving disk 56 can drive the knife seat 33 to rotate.

[0063] An inner bearing 37 and an outer bearing 38 are installed between the connecting seat 32 and the knife holder 33. An inner positioning ring 39 and an outer positioning ring 40 are respectively provided on the outer walls of the inner and outer bearings 37 and 38. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40. A positioning cap 41 is connected to the connecting seat 32 and is pressed against the outer bearing 38. The arrangement of the inner and outer bearings 37 and 38 ensures the smooth operation of the knife holder 33. The knife holder 33 is axially positioned between the inner and outer positioning rings 39 and 40, achieving axial positioning of the knife holder 33. The positioning cap 41 achieves axial positioning of the inner and outer bearings 37 and 38. Washers 42 are installed on both sides of the slitting blade 8 on the knife holder 33. Several clamping screws 43 are evenly distributed circumferentially connected to the end cap 34. The ends of the clamping screws 43 press against the washers 42 to achieve axial positioning of the slitting blade 8.

[0064] To install and use the slitting blades 8, attach mounting plate 1 to the slitting equipment and adjust the mounting position of mounting plate 1 according to the required width of the material to be slit. To make adjustments, first slide mounting plate 1 to achieve a rough adjustment, bringing the spacing between adjacent slitting blades 8 close to the desired slitting width. Then, rotate adjustment screw 6 to move blade holder 2 for fine adjustment, achieving precise adjustment of the spacing between adjacent slitting blades 8. Sliding mounting plate 1 for rough adjustment is first performed, followed by rotating adjustment screw 6 to move blade holder 2 laterally for fine adjustment, ensuring precise and reliable adjustment. The piston cylinder 7 then activates, pushing its telescopic rod outward, pressing slitting blade 8 downward to slit the material.

[0065] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A pneumatic slitting knife installation structure, characterized in that: It includes a mounting plate and a tool holder, the tool holder includes a main frame body and a lifting frame body, the main frame body is installed on the mounting plate for horizontal movement, the mounting plate is installed with an adjusting screw, and the adjusting screw is adaptively connected to the main frame body; a piston cylinder is installed on the main frame body, the piston cylinder telescopic rod is connected to the lifting frame body, and a slitting knife is installed on the lifting frame body.

2. A pneumatic slitting knife installation structure according to claim 1, characterized in that: A guide column is installed on the mounting plate, a slider is arranged on the main frame, a guide hole and a screw hole are arranged on the slider, a sliding sleeve is installed in the guide hole, the sliding sleeve is slidably connected with the guide column, and an adjusting screw is connected with the screw hole.

3. The pneumatic slitting knife installation structure according to claim 1, characterized in that: A fixed clamping block is installed on the mounting plate, the fixed clamping block is connected to the movable clamping block, the adjusting screw is clamped between the fixed clamping block and the movable clamping block, and a locking screw is connected between the movable clamping block and the fixed clamping block.

4. The pneumatic slitting knife installation structure according to claim 1, characterized in that: The mounting plate is fastened to the slide, one end of the slide is provided with a fixed stopper protruding outward, and the other end of the slide is fastened to the limit stopper, and the main frame moves within the range between the fixed stopper and the limit stopper.

5. The pneumatic slitting knife installation structure according to claim 1, characterized in that: The main frame is connected to the fixed block, the lifting frame is connected to the limit block, the limit block is connected to the adjusting stud, the fixed block and the adjusting stud are movably plug-in connected, the adjusting stud is threadedly connected to the positioning nut, and the limit block and the positioning nut are respectively placed on both sides of the fixed block.

6. The pneumatic slitting knife installation structure according to claim 1, characterized in that: The guide shaft is fastened to the lifting frame body, a guide hole is arranged on the main frame body, and the guide shaft is movably plug-in connected to the guide hole.

7. The pneumatic slitting knife installation structure according to claim 1, characterized in that: A mounting hole is provided on the main frame, the piston cylinder telescopic rod passes through the mounting hole, a reset spring is sleeved on the piston cylinder telescopic rod, and the reset spring abuts between the mounting hole and the piston cylinder telescopic rod.

8. The pneumatic slitting knife installation structure according to claim 1, characterized in that: An L-shaped guard plate is installed on the lifting frame body, an avoidance groove is arranged at the bottom of the guard plate, and the lower part of the slitting knife extends out of the avoidance groove.

9. A pneumatic slitting knife installation structure according to any one of claims 1 to 8, characterized in that: A connecting seat is installed on the lifting frame body, a knife seat is rotatably connected on the connecting seat, a slitting knife is sleeved on the knife seat, the knife seat is connected to an end cover, and the end cover is pressed tightly on the slitting knife.

10. The pneumatic slitting knife installation structure according to claim 9, characterized in that: An inner bearing and an outer bearing are installed between the connecting seat and the knife seat. An inner positioning convex ring and an outer positioning convex ring are respectively provided on the outer walls of the inner bearing and the outer bearing. The knife seat is axially positioned between the inner positioning convex ring and the outer positioning convex ring. A positioning cover is connected to the connecting seat, and the positioning cover is pressed against the outer bearing.

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