A slitting knife holder of a slitting machine
By employing a threaded movable plate and movable block structure in the slitting machine's blade holder, and using an internal hexagonal worm gear and magnetic block for fixation, the limitations of use caused by the fixed position of the slitting blade in the existing technology are solved. This achieves flexible adjustment and stable fixation of the slitting blade, improving the practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ZHENFENG MASCH&CUTTER CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-02
AI Technical Summary
The existing slitting machine uses multiple sets of adjustable sliders to fix the slitting blades, which have a fixed length. This makes it impossible to flexibly adjust the position of the slitting blades according to actual needs, resulting in great limitations in use and affecting the practicality of the device.
The structure uses a threaded connection between the movable plate and the movable block. The threaded rod is rotated by an internal hexagonal worm gear, which adjusts the distance between the movable plate and the movable block to achieve flexible adjustment of the position of the cutter body. It is fixed by a magnetic block to prevent loosening and falling off.
The device allows for flexible adjustment of the slitting blade position, improving its practicality, simplifying the operation process, and enhancing its adaptability.
Smart Images

Figure CN224310781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slitting machine blade holder technology, specifically a slitting blade holder for a slitting machine. Background Technology
[0002] The blades in lithium battery separator slitting machines are fixed blades, meaning they operate in a fixed position. Due to factors such as heat generation, the blade edge can lose its sharpness, resulting in burrs on the cut surface of the slitting product, or even noticeably uneven cut surfaces, rendering the product unusable. Therefore, the slitting blades need to be replaced regularly. However, commonly used slitting mechanisms employ one-piece blades, making replacement very inconvenient.
[0003] In response, Chinese patent application number CN202322634451.8 discloses an adjustable master roll slitting blade holder for a diaphragm slitting machine. The blade holder includes an adjustable blade holder with an adjusting groove and a locking groove that extend through each other. A locking slider is slidably disposed within the locking groove. A rotating adjusting mechanism is located on the outside of the adjustable blade holder. A zero-position limiting block is fixedly disposed at one end of the adjusting groove away from the rotating adjusting mechanism. Several adjusting sliders are disposed between the zero-position limiting block and the locking slider. A slitting blade is inserted between the adjusting sliders. This invention features a simple structure and convenient operation. It allows selection of the corresponding slitting position according to different slitting size requirements, achieving excellent slitting results. The adjustment process eliminates the need to disassemble the entire blade holder, significantly improving both efficiency and safety, and greatly enhancing practicality.
[0004] The blade holder can clamp and fix the slitting blade on the surface by setting multiple sets of adjusting sliders. However, the length of the adjusting sliders is fixed. During use, the slitting blade can only be fixed at a position that is an integer multiple of the adjusting slider. It is not possible to conveniently adjust the position of the slitting blade according to actual needs, which makes the use of the device obviously limited and not conducive to its widespread use.
[0005] Therefore, in order to solve the above problems, a slitting blade holder for a slitting machine is proposed. Utility Model Content
[0006] The purpose of this utility model is to provide a slitting blade holder for a slitting machine, in order to solve the problem mentioned in the background art that the blade holder in the prior art can clamp and fix the slitting blade on the surface by setting multiple sets of adjusting sliders. However, the length of the adjusting sliders is fixed. In use, the slitting blade can only be fixed at a position that is an integer multiple of the adjusting slider. It is not possible to conveniently adjust the position of the slitting blade according to actual needs, which makes the use of the device obviously limited and not conducive to its widespread use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a slitting blade holder for a slitting machine, comprising: a mounting bracket;
[0008] A sealing plate is installed on the left side wall of the mounting bracket, and a positioning bolt is threaded onto the surface of the sealing plate;
[0009] The mounting frame is equipped with a mounting structure, which includes a movable plate that is slidably mounted on the inner side of the mounting frame. A hexagonal worm gear is movably mounted on the top surface of the movable plate via a bearing. A worm wheel is movably mounted inside the movable plate via a bearing, and a threaded rod is fixedly connected to the surface of the worm wheel. A movable block is provided on the right side of the movable plate, and a mounting groove is formed on the right side wall of the movable block. A positioning block is integrally formed on the inner wall of the mounting groove, and a magnetic block is engaged on the inner side of the positioning block. A hexagonal bolt is threadedly connected to the top surface of the positioning block. A blade body is mounted inside the mounting groove, and a positioning groove is formed on the surface of the blade body. A stop plate is threadedly connected to the right end of the mounting frame, and a screw handwheel is rotatably connected to the left end of the stop plate.
[0010] Preferably, the internal hexagonal worm gear meshes with a worm wheel.
[0011] Preferably, the threaded rod passes through the bottom of the movable block and is threadedly connected to the movable block, and the movable block is slidably installed inside the mounting bracket.
[0012] Preferably, the internal hex bolt passes through the magnetic block.
[0013] Preferably, the blade body is fitted onto the outside of the positioning block through a positioning groove, and the upper end of the blade body protrudes from the top surface of the movable block.
[0014] Preferably, the abutment is slidably mounted on the inner side of the mounting bracket, with the left side wall of the abutment abutting against the right side wall of the movable block.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By using a threaded rod to connect the movable plate and the movable block, the internal hexagonal worm gear can be rotated as needed during actual use to drive the threaded rod to rotate, thereby adjusting the distance between the movable plate and the movable block. This allows for flexible adjustment of the positions of two adjacent sets of blade bodies, without being limited by the size of the movable plate and the movable block, thus improving the practicality of the device.
[0016] This utility model features an installation structure. A magnetic block is placed inside the positioning block, and the internal hexagonal bolts are tightened to fix the magnetic block inside the positioning block. Next, the movable plate and movable block are installed from the left end to the inside of the mounting frame. Then, the positioning bolts are tightened to fix the sealing plate to the left end of the mounting frame. The sealing plate can limit the movement of the movable plate and movable block inside the mounting frame from the left end. The blade body is placed inside the mounting groove, and then fitted onto the outside of the positioning block through the positioning groove. The magnetic block can magnetically attract the blade body, limiting the installation of the blade body outside the positioning block and preventing it from loosening and falling off before fixing. Rotating the leftmost set of internal hexagonal worm gears causes the internal hexagonal worm gears to mesh with the worm wheel. The rotation of the internal hexagonal worm gears drives the threaded rod to rotate through the worm wheel. The threaded rod then engages with the movable plate and movable block. The screw thread connection is used, and the movable block is slidably installed inside the mounting bracket. Therefore, when the screw rod rotates, it will drive the movable block to move to the right, which in turn will drive the cutter body to move, thereby adjusting the position of the cutter body. The position of the cutter body can be determined by a scale. Then, move the adjacent set of movable plates so that the movable plates are in contact with the set of movable blocks on the left. The movable plates and movable blocks can limit and fix the cutter body. Then, operate the internal hexagonal worm gear to the right in sequence. Finally, rotate the screw handwheel. The screw handwheel is threadedly connected to the mounting bracket and rotatably connected to the back plate. When the screw handwheel rotates, it will drive the back plate to move closer to the rightmost set of movable blocks, which can limit the rightmost set of movable blocks. This allows the movable plates and movable blocks to be stably installed in the mounting bracket without displacement. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an exploded view of the structure of this utility model;
[0019] Figure 3 This is a side view of the structure of the mounting bracket of this utility model;
[0020] Figure 4 This is an exploded cross-sectional view of the movable plate and movable block of this utility model.
[0021] In the diagram: 1. Mounting bracket; 11. Sealing plate; 12. Positioning bolt; 2. Mounting structure; 21. Movable plate; 22. Socket hexagon worm gear; 23. Worm wheel; 24. Threaded rod; 25. Movable block; 26. Mounting slot; 27. Positioning block; 28. Magnetic block; 29. Socket hexagon bolt; 210. Tool body; 211. Positioning slot; 212. Support plate; 213. Screw handwheel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-4 The present invention provides an embodiment of a slitting blade holder for a slitting machine:
[0024] The mounting bracket 1 used in this application is a product that can be purchased directly from the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0025] A slitting blade holder for a slitting machine includes: a mounting bracket 1;
[0026] A sealing plate 11 is installed on the left side wall of the mounting bracket 1, and a positioning bolt 12 is threaded onto the surface of the sealing plate 11;
[0027] Mounting structure 2 is mounted on mounting bracket 1. Mounting structure 2 includes a movable plate 21, which is slidably mounted inside mounting bracket 1. A hexagonal worm gear 22 is movably mounted on the top surface of movable plate 21 via bearings. A worm wheel 23 is movably mounted inside movable plate 21 via bearings. A threaded rod 24 is fixedly connected to the surface of worm wheel 23. A movable block 25 is provided on the right side of movable plate 21. A mounting groove 26 is formed on the right side wall of movable block 25. A positioning block 27 is integrally formed on the inner wall of mounting groove 26. A magnetic block 28 is engaged inside the positioning block 27. A hexagonal bolt 29 is threadedly connected to the top surface of positioning block 27. The inner side of the 26 is equipped with a blade body 210. The surface of the blade body 210 is provided with a positioning groove 211. The right end of the mounting bracket 1 is threadedly connected to a backing plate 212. The left end of the backing plate 212 is rotatably connected to a screw handwheel 213. By using a threaded rod 24 to connect the movable plate 21 and the movable block 25, the internal hexagonal worm gear 22 can be rotated as needed during actual use to drive the threaded rod 24 to rotate, thereby adjusting the distance between the movable plate 21 and the movable block 25. This allows for flexible adjustment of the positions of two adjacent sets of blade bodies 210, without being limited by the size of the movable plate 21 and the movable block 25, thus improving the practicality of the device.
[0028] Furthermore, the internal hexagonal worm 22 meshes with the worm wheel 23, and rotating the internal hexagonal worm 22 can drive the worm wheel 23 inside the movable block 25 to rotate.
[0029] Furthermore, the threaded rod 24 passes through the bottom of the movable block 25 and is threadedly connected to the movable block 25. The movable block 25 is slidably installed inside the mounting frame 1. The rotation of the threaded rod 24 can drive the movable block 25 to slide within the mounting frame 1 to adjust the distance between the movable plate 21 and the movable block 25, thereby realizing convenient adjustment of the distance between multiple sets of blade bodies 210.
[0030] Furthermore, the hex bolt 29 passes through the magnetic block 28, and the magnetic block 28 can be fixed inside the positioning block 27 by the hex bolt 29. The blade body 210 can be fixed outside the positioning block 27 by the magnetic block 28, so as to prevent the blade body 210 from loosening.
[0031] Furthermore, the blade body 210 is fitted onto the outside of the positioning block 27 through the positioning groove 211, and the upper end of the blade body 210 protrudes from the top surface of the movable block 25. The blade body 210 can be fixed inside the mounting groove 26 through the positioning block 27.
[0032] Furthermore, the abutment plate 212 is slidably installed on the inner side of the mounting bracket 1, and the left side wall of the abutment plate 212 is attached to the right side wall of the movable block 25, so that the abutment plate 212 can abut and limit the movement of the movable block 25 on the inner side of the mounting bracket 1.
[0033] Working principle: Before assembly, the magnetic block 28 can be placed inside the positioning block 27 and the internal hex bolt 29 can be tightened to fix the magnetic block 28 inside the positioning block 27. Then, the movable plate 21 and the movable block 25 are installed inside the mounting frame 1 from the left end. Then, the positioning bolt 12 is tightened to fix the sealing plate 11 to the left end of the mounting frame 1. The sealing plate 11 can limit the movable plate 21 and the movable block 25 inside the mounting frame 1 at the left end.
[0034] The blade body 210 is placed inside the mounting groove 26, and the blade body 210 is fitted onto the outside of the positioning block 27 through the positioning groove 211. The magnetic block 28 can magnetically attract the blade body 210, which can limit the installation of the blade body 210 on the outside of the positioning block 27 and prevent the blade body 210 from loosening and falling off before it is fixed.
[0035] Rotate the leftmost set of internal hexagonal worm gears 22. The internal hexagonal worm gears 22 mesh with the worm wheel 23. The rotation of the internal hexagonal worm gears 22 drives the threaded rod 24 to rotate through the worm wheel 23. The threaded rod 24 is threadedly connected to the movable block 25, and the movable block 25 is slidably installed inside the mounting bracket 1. Therefore, when the threaded rod 24 rotates, it will drive the movable block 25 to move to the right. The movable block 25 can then drive the cutter body 210 to move, thereby adjusting the position of the cutter body 210. The position of the cutter body 210 can be determined by a scale. Then move the adjacent set of movable plates 21 so that the movable plates 21 fit against the set of movable blocks 25 on the left. The movable plates 21 and the movable blocks 25 can limit and fix the cutter body 210. Then operate the internal hexagonal worm gears 22 sequentially to the right.
[0036] Finally, rotate the screw handwheel 213. The screw handwheel 213 is threadedly connected to the mounting bracket 1. The screw handwheel 213 is rotatably connected to the back plate 212. When the screw handwheel 213 rotates, it drives the back plate 212 to move closer to the rightmost set of movable blocks 25, which can limit the rightmost set of movable blocks 25, so that the movable plate 21 and the movable blocks 25 are stably installed in the mounting bracket 1 and will not be displaced.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A slitting blade holder for a slitting machine, comprising: Mounting bracket (1); Its features are: A sealing plate (11) is installed on the left side wall of the mounting bracket (1), and a positioning bolt (12) is threaded onto the surface of the sealing plate (11). The mounting frame (1) is equipped with a mounting structure (2), which includes a movable plate (21). The movable plate (21) is slidably mounted on the inner side of the mounting frame (1). A hexagonal worm gear (22) is movably mounted on the top surface of the movable plate (21) via a bearing. A worm wheel (23) is movably mounted inside the movable plate (21) via a bearing. A threaded rod (24) is fixedly connected to the surface of the worm wheel (23). A movable block (25) is provided on the right side of the movable plate (21). An opening is formed on the right side wall of the movable block (25). There is an installation groove (26), and a positioning block (27) is integrally formed on the inner wall of the installation groove (26). A magnetic block (28) is clamped on the inner side of the positioning block (27). An internal hex bolt (29) is threaded on the top surface of the positioning block (27). A knife body (210) is installed on the inner side of the installation groove (26). A positioning groove (211) is opened on the surface of the knife body (210). A stop plate (212) is threaded on the right end of the mounting bracket (1). A screw handwheel (213) is rotatably connected to the left end of the stop plate (212).
2. The slitting blade holder of a slitting machine according to claim 1, characterized in that: The internal hexagonal worm (22) meshes with the worm wheel (23).
3. The slitting blade holder of a slitting machine according to claim 1, characterized in that: The threaded rod (24) passes through the bottom of the movable block (25) and is threadedly connected to the movable block (25), which is slidably installed inside the mounting bracket (1).
4. The slitting blade holder of a slitting machine according to claim 1, characterized in that: The internal hex bolt (29) passes through the magnetic block (28).
5. The slitting blade holder of a slitting machine according to claim 1, characterized in that: The blade body (210) is fitted onto the outside of the positioning block (27) through the positioning groove (211), and the upper end of the blade body (210) protrudes from the top surface of the movable block (25).
6. The slitting blade holder of a slitting machine according to claim 1, characterized in that: The abutment (212) is slidably installed on the inner side of the mounting bracket (1), and the left side wall of the abutment (212) is attached to the right side wall of the movable block (25).