A slitting machine with easily replaceable blades
By fixing the blades with limit blocks and sliding grooves, the problem of inconvenient disassembly during blade replacement in slitting machines is solved, enabling quick replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI ORIENTAL MACHINERY FACTORY
- Filing Date
- 2025-05-14
- Publication Date
- 2026-07-21
AI Technical Summary
The replacement of blades on existing slitting machines requires the removal of multiple screws, which causes inconvenience in disassembly.
The blade is fixed by means of sliding and clamping, avoiding the use of screws. It adopts structures such as limit blocks, sliding grooves, mounting rods, insert blocks and insert rods to fix the blade.
It enables quick blade replacement without the need for separate removal of screws, simplifying the replacement process.
Smart Images

Figure CN224526088U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of slitting machine technology, and in particular to a slitting machine with easy blade replacement. Background Technology
[0002] A slitting machine, also known as a slitting line, longitudinal slitting machine, or stripping machine, is used to uncoil, slit, and rewind metal coils into strips of the required width. It is suitable for processing cold-rolled and hot-rolled carbon steel, silicon steel, tinplate, stainless steel, and various surface-coated metal materials. The blades of a slitting machine are generally mounted on a cutter shaft. However, currently, most blades are fixed to the cutter shaft using screws on both sides. While this screw fixing method is very stable, disassembly can be difficult when replacing blades, requiring the removal of each screw individually. Therefore, to solve this problem of inconvenient disassembly, a slitting machine designed for easy blade replacement has been developed. Utility Model Content
[0003] To address the problem of inconvenient blade replacement and disassembly in slitting machines, this application provides a slitting machine with easily replaceable blades.
[0004] The slitting machine for easy blade replacement provided in this application adopts the following technical solution: A slitting machine for easy blade replacement includes a blade shaft and a slitting machine body. The blade shaft is mounted on the slitting machine body. The blade shaft has equidistant, annular grooves. Limiting blocks for fixing the blades are slidably connected to the grooves. Adjacent limiting blocks jointly clamp the blades. One end of each limiting block protrudes upwards. Limiting grooves are formed on both sides of each limiting block. Insert blocks are inserted into the limiting grooves. Mounting rods are fixedly connected to the insert blocks on their adjacent sides. A rod is installed at one end of each insert block and is inserted into the limiting block.
[0005] Preferably, the mounting rod is arc-shaped and made of steel.
[0006] Preferably, the insert block has a fixing groove on the side away from the mounting rod, and a tension spring is fixedly connected in the fixing groove.
[0007] Preferably, a pull plate is fixedly connected to one side of the tension spring, and a plug rod is fixedly connected to one side of the pull plate.
[0008] Preferably, the limiting block has slots at both ends on one side, and the slots are compatible with the insertion rod.
[0009] Preferably, the slide grooves are provided in multiple sets, and the slide grooves are centrally symmetrical.
[0010] In summary, this application includes the following beneficial technical effects: In this utility model, the limiting block, sliding groove, mounting rod, insert block and insert rod and other structures can fix the blade to the cutter shaft, so that the blade can be fixed without the use of screws, thus eliminating the troublesome operation of removing screws one by one when disassembling and replacing. Attached Figure Description
[0011] Figure 1 is a schematic diagram of the main structure of the embodiment of the application; Figure 2 is a schematic diagram I of the structure after the tool shaft and the cutting tool are installed according to the embodiment of the application; Figure 3 is a schematic diagram of the structure after the tool shaft and the cutting tool are installed according to the embodiment of the application (II); Figure 4 is a schematic diagram of the structure of the cutter shaft after the intermediate blade is removed in the embodiment of the application; Figure 5 is a structural schematic diagram of the mounting rod and insert block according to the embodiment of the application; Figure 6 is a schematic diagram of the connection structure of the mounting rod, insert block and limiting block in the embodiment of the application; Figure 7 is a schematic diagram of the structure of the limiting block in the embodiment of the application.
[0012] Explanation of reference numerals in the attached drawings: 1. Main body of the slitting machine; 2. Cutter shaft; 21. Slide groove; 3. Blade; 4. Limiting block; 41. Limiting groove; 42. Slot; 5. Mounting rod; 51. Insertion block; 52. Tension spring; 53. Pull plate; 54. Insertion rod. Detailed Implementation
[0013] The present application will be further described in detail below with reference to Figures 1-7.
[0014] This application discloses a slitting machine for easy blade replacement. Referring to Figures 1-7, a slitting machine for easy blade replacement includes a blade shaft 2 and a slitting machine body 1. The blade shaft 2 is mounted on the slitting machine body 1. The blade shaft 2 has equidistant annular grooves 21. Limiting blocks 4 for fixing blades 3 are slidably connected to the grooves 21. Adjacent limiting blocks 4 together clamp the blades 3. One end of the limiting block 4 protrudes upward. Limiting grooves 41 are opened on both sides of the limiting block 4. Insert blocks 51 are inserted into the limiting grooves 41. A fixing groove is opened on the side of the insert block 51 away from the mounting rod 5. A tension spring 52 is fixedly connected in the fixing groove. A pull plate 53 is fixedly connected to one side of the tension spring 52. An insert rod 54 is fixedly connected to one side of the pull plate 53. The insert rod 54 is inserted into a slot 42 opened on one side of the limiting block 4.
[0015] Place the blade 3 on the cutter shaft 2 and between the slide grooves 21. Then, place the limiting blocks 4 into the slide grooves 21 from both sides of the blade 3. Move the limiting blocks 4 to the end of the slide grooves 21. At this time, the protruding parts of the limiting blocks 4 contact the end faces of the blade 3. Then, move the mounting rod 5 so that the insert 51 of the mounting rod 5 enters the limiting groove 41. Pull the pull plate 53 so that the pull plate 53 drives the tension spring 52 to extend and move the insert rod 54. After the insert rod 54 is aligned with the slot 42, release the pull plate 53 so that the tension spring 52 drives the insert rod 54 into the slot 42. This fixes the mounting rod 5 and the insert 51 and connects and fixes the two limiting blocks 4 to each other, thereby clamping the blade 3.
[0016] The structure consisting of limit block 4, slide groove 21, mounting rod 5, insert block 51 and insert rod 54 can fix the blade 3 to the cutter shaft 2, thus achieving the function of fixing the blade 3 without the need for screws, thereby avoiding the troublesome operation of removing screws one by one when disassembling and replacing.
[0017] By adopting the above technical solution, the mounting rod 5 is arc-shaped, as shown in Figure 5. The mounting rod 5 is made of steel, which makes the mounting rod 5 less prone to deformation, thereby providing a reliable connection and fixation function.
[0018] By adopting the above technical solution, slots 42 are provided at both ends of one side of the limiting block 4. The slots 42 and the insertion rod 54 are compatible, as shown in Figure 7.
[0019] Multiple sets of slide grooves 21 are provided. The slide grooves 21 are centrally symmetrical, that is, the front and rear slide grooves 21 are the same, and the upper and lower slide grooves 21 are the same.
[0020] The implementation principle of a slitting machine for easy blade replacement according to an embodiment of this application is as follows: First, pull the pull plates 53 on the insert blocks 51 at both ends of the mounting rod 5, causing the pull plates 53 to drive the tension spring 52 to extend, and causing the tension spring 52 to drive the insert rod 54 to move and separate from the slot 42. Then, push the mounting rod 5, causing the mounting rod 5 to drive the insert block 51 to separate from the limiting groove 41. Then, push the limiting block 4, causing the limiting block 4 to slide on the slide groove 21 and move away from the blade 3. Then, remove the limiting block 4 from one side of the slide groove 21. Then, remove the blade 3 for replacement. When installing the new blade 3, first place the blade 3 on the cutter shaft 2 and between the slide grooves 21. Then, place the limiting blocks 4 into the slide grooves 21 from both sides of the blade 3. Then, move the limiting blocks 4 to the end of the slide groove 21, and the protruding parts of the limiting blocks 4 contact the end face of the blade 3. Then, move the mounting rod 5, causing the mounting rod 5 to move to the end of the slide groove 21. The insert 51 enters the limiting groove 41 and pulls the pull plate 53, causing the pull plate 53 to drive the tension spring 52 to extend and move the insert rod 54. After the insert rod 54 is aligned with the slot 42, the pull plate 53 is released, causing the tension spring 52 to drive the insert rod 54 into the slot 42, thus fixing the mounting rod 5 and the insert 51, and connecting and fixing the two limiting blocks 4 to each other, thereby clamping the blade 3.
[0021] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0022] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A slitting machine with convenient blade replacement, comprising a blade shaft (2) and a slitting machine body (1), characterized in that: The cutter shaft (2) is mounted on the main body (1) of the slitting machine. The cutter shaft (2) has a circular groove (21) at equal intervals. The groove (21) is slidably connected to a limiting block (4) for fixing the blade (3). The adjacent limiting blocks (4) jointly clamp the blade (3). One end of the limiting block (4) protrudes upward. Limiting grooves (41) are opened on both sides of the limiting block (4). Inserts (51) are inserted into the limiting grooves (41). The inserts (51) are fixedly connected to the mounting rod (5) on one side close to each other. One end of the inserts (51) is equipped with a rod (54). The rod (54) is inserted into the limiting block (4).
2. A slitting machine with convenient blade replacement according to claim 1, characterized in that: The mounting rod (5) is arc-shaped and is made of steel.
3. A slitting machine with convenient blade replacement according to claim 1, characterized in that: The insert (51) has a fixing groove on the side away from the mounting rod (5), and a tension spring (52) is fixedly connected in the fixing groove.
4. A slitting machine with convenient blade replacement according to claim 3, characterized in that: The tension spring (52) is fixedly connected to a pull plate (53) on one side, and the pull plate (53) is fixedly connected to a plug rod (54) on one side.
5. A slitting machine with convenient blade replacement according to claim 1, characterized in that: The limiting block (4) has slots (42) at both ends on one side, and the slots (42) are compatible with the insert rod (54).
6. A slitting machine with convenient blade replacement according to claim 1, characterized in that: The slide (21) is provided in multiple sets, and the slide (21) is centrally symmetrical.