Aramid short fiber cut-off cutterhead
By designing a fixing mechanism and slot structure, the problem of needing tools to replace blades in existing aramid short fiber cutting discs has been solved, enabling tool-free replacement of the blade body and improving operational convenience and practicality.
Patent Information
- Application Number
- CN202520118482.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-19
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-19
AI Technical Summary
The existing aramid staple fiber cutting disc requires specific tools to change the cutting blades, making the operation inconvenient.
A cutting disc for aramid short fibers is designed, employing a fixing mechanism and slot structure to achieve tool-free disassembly and replacement of the blade body. The combination of positioning groove, mounting post, cover plate and insert rod achieves fixation of the blade handle and prevents rotation.
It enables convenient disassembly and replacement of the cutter body without the need for tools, thus improving the practicality and ease of operation of the cutter head.
Smart Images

Figure CN223933725U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aramid short fiber technology, and in particular to an aramid short fiber cutting disc. Background Technology
[0002] Aramid staple fiber is a high-performance synthetic fiber, officially known as "aromatic polyamide fiber." It possesses excellent properties such as high strength, high modulus, high temperature resistance, chemical corrosion resistance, and light weight. Its strength is 56 times that of steel wire, its modulus is 23 times that of steel wire or glass fiber, while its weight is only about one-fifth that of steel wire. Aramid staple fiber is widely used in defense, automotive, electronics, and sporting goods industries, such as in the manufacture of bulletproof vests, tires, wires and cables, and tennis rackets. Due to its superior comprehensive properties, aramid staple fiber has become one of the important basic materials in high-tech fields.
[0003] Currently, although existing aramid staple fiber cutting disc designs have considered the ease of disassembly and replacement of the cutting blades, simplifying the operation process compared to traditional equipment and indeed bringing considerable convenience to production and maintenance, in actual operation, when it is necessary to replace the cutting blades, this step still requires the use of specific tools. This means that although the design of the cutting disc has taken a step forward, there are still certain limitations in achieving true "quick replacement" or "tool-free replacement." Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing an aramid short fiber cutting disc.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design an aramid short fiber cutting disc, including a disc body, on which through slots are formed, the number of through slots being three, and a blade handle is inserted into each through slot, the number of blade handles being three, with a blade body fixedly installed at one end of each blade handle, the number of blade bodies being three, and a fixing mechanism is installed on the disc body.
[0007] Furthermore, the fixing mechanism includes positioning grooves, which are formed on the inner wall of the cutter head body. There are six positioning grooves, and each of the six positioning grooves is cylindrical.
[0008] Furthermore, a positioning block is inserted into the inner wall of the positioning groove. The positioning block is cylindrical in shape and is fixedly installed on the tool holder. There are six positioning blocks in total.
[0009] Furthermore, a mounting post is fixedly installed on the inner wall of the cutter head body. The mounting post is threaded and a cover plate is threadedly connected to the mounting post. A threaded hole is opened at the bottom end of the cover plate, and the mounting post is threadedly connected to the threaded hole.
[0010] Furthermore, a handle is fixedly installed at the top of the cover plate. The handle is arched in shape. A slot is provided at the top of the cover plate. The slot is cylindrical in shape. There are twelve slots.
[0011] Furthermore, a groove is formed in the body of the cutter head, the groove being cylindrical, and a limiting block is slidably arranged on the inner wall of the groove, the limiting block being circular, and a column is fixedly installed at the top of the limiting block, the column being cylindrical, the top of the column penetrating the top of the cutter head body, and an insert rod being rotatably connected to the top of the column via a bearing, the insert rod being arched.
[0012] Furthermore, a spring is fixedly installed on the inner wall of the groove, and one end of the spring is fixedly connected to the inner wall of the groove.
[0013] The present invention provides an aramid short fiber cutting disc with the following advantages: the present invention has a fixing mechanism to facilitate the installation and removal of the blade body, making it easy to disassemble and replace the blade body without the need for tools. It also has twelve slots to facilitate the clamping and fixing of blade handles of different thicknesses, thereby improving the practicality of the aramid short fiber cutting disc. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the mounting column of this utility model;
[0016] Figure 3 This is a schematic diagram of the positioning groove of this utility model;
[0017] Figure 4 This is a schematic diagram of the positioning block of this utility model;
[0018] Figure 5 This is a schematic diagram of the threaded hole of this utility model;
[0019] Figure 6 This is a partial cross-sectional view of the overall structure of this utility model;
[0020] Figure 7 This is an enlarged view of section A of this utility model.
[0021] In the diagram: 1. Tool head body; 2. Tool holder; 3. Slot; 4. Tool body; 5. Through slot; 6. Cover plate; 7. Handle; 8. Insert rod; 9. Mounting post; 10. Positioning slot; 11. Positioning block; 12. Threaded hole; 13. Limiting block; 14. Spring; 15. Post; 16. Groove. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-7 A cutting disc for cutting aramid short fibers includes a disc body 1, characterized in that: the disc body 1 has through grooves 5, which are used to receive the insertion of a handle 2; there are three through grooves 5, and a handle 2 is inserted into each through groove 5; the handle 2 is used to receive the installation of a blade body 4; there are three handles 2, and a blade body 4 is fixedly installed at one end of each handle 2; there are three blade bodies 4; a fixing mechanism is installed on the disc body 1, which facilitates the installation and removal of the blade bodies 4, making it easy to disassemble and replace the blade bodies 4 without the need for tools.
[0024] In detail, the fixing mechanism includes positioning grooves 10, which are formed on the inner wall of the cutter head body 1. There are six positioning grooves 10, and each of the six positioning grooves 10 is cylindrical. The positioning grooves 10 are provided to receive the insertion of the positioning blocks 11.
[0025] Furthermore, a positioning block 11 is inserted into the inner wall of the positioning groove 10. The positioning block 11 is cylindrical in shape and is fixedly installed on the tool holder 2. There are six positioning blocks 11. The positioning blocks 11 are designed to be inserted into the positioning groove 10 to achieve the purpose of positioning the tool holder 2, which is beneficial for the positioning and installation of the tool holder 2.
[0026] Furthermore, a mounting post 9 is fixedly installed on the inner wall of the cutter head body 1. The mounting post 9 is threaded. By setting the mounting post 9 with threads, it is easy to connect the threaded post to the threaded hole 12 so as to realize the installation of the cover plate 6. The cover plate 6 is threadedly connected to the mounting post 9. The cover plate 6 is set to press and fix the cutter handle 2. The bottom end of the cover plate 6 has a threaded hole 12. The mounting post 9 is threadedly connected to the threaded hole 12. The threaded hole 12 is set to receive the installation of the cover plate 6.
[0027] More specifically, a handle 7 is fixedly installed on the top of the cover plate 6. The handle 7 is arched and is used to rotate the cover plate 6. A slot 3 is provided on the top of the cover plate 6. The slot 3 is cylindrical and there are twelve slots. The slots 3 are used to receive the insertion of one end of the insertion rod 8.
[0028] In general, the cutter head body 1 has a groove 16 inside. The groove 16 is designed to support the sliding of the limiting block 13. The groove 16 is cylindrical. The limiting block 13 is slidably mounted on the inner wall of the groove 16. The limiting block 13 is circular. The limiting block 13 is designed to limit the movement of the column 15, which facilitates the vertical movement of the column 15. The top of the limiting block 13 is fixedly mounted with the column 15. The column 15 is cylindrical. The column 15 is designed to support the installation of the insertion rod 8. The top of the column 15 passes through the top of the cutter head body 1. The top of the column 15 is rotatably connected to the insertion rod 8 through a bearing. The insertion rod 8 is arched. The insertion rod 8 is designed to be inserted into the slot 3 to fix the cover plate 6 and prevent the cover plate 6 from rotating.
[0029] Finally, a spring 14 is fixedly installed on the inner wall of the groove 16. One end of the spring 14 is fixedly connected to the inner wall of the groove 16. The spring 14 is designed to receive the force applied to the insertion rod 8 so that the insertion rod 8 can be inserted into the slot 3.
[0030] Working method: During operation, when installing the blade body 4, the handle 2 at one end of the blade body 4 is inserted into the through groove 5, and the positioning block 11 on the surface of the handle 2 is inserted into the positioning groove 10 to achieve positioning and installation of the handle 2 and the blade body 4. After the handle 2 is installed, the cover plate 6 is threadedly connected to the blade disc body 1 by setting the threaded mounting post 9. During the installation of the cover plate 6, the cover plate 6 will press the handle 2 until the handle 2 is clamped and fixed. At this time, the insertion rod 8 is pulled upward and rotated until one end of the insertion rod 8 is aligned with the slot 3. Then the insertion rod 8 is released, and the insertion rod 8 is inserted into the slot 3 under the action of the spring 14 to prevent the cover plate 6 from rotating, which would cause the handle 2 to loosen. Through the above settings, it is easy to install the blade body 4 without the need for tools. At the same time, by setting twelve slots 3, it is easy to clamp and fix the handle 2 of different thicknesses, thereby improving the practicality of the aramid short fiber cutting blade disc.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A cutting disc for cutting aramid staple fibers, comprising a disc body (1), characterized in that: The cutter body (1) has a through groove (5) with three through grooves (5). A handle (2) is inserted into the through groove (5). There are three handles (2). A blade body (4) is fixedly installed at one end of the handle (2). There are three blade bodies (4). A fixing mechanism is installed on the cutter body (1).
2. The aramid staple fiber cutting disc according to claim 1, characterized in that: The fixing mechanism includes a positioning groove (10), which is formed on the inner wall of the cutter head body (1). There are six positioning grooves (10), and the six positioning grooves (10) are all cylindrical grooves.
3. The aramid staple fiber cutting disc according to claim 2, characterized in that: The inner wall of the positioning groove (10) is fitted with a positioning block (11), which is cylindrical in shape. The positioning block (11) is fixedly installed on the handle (2), and there are six positioning blocks (11).
4. The aramid staple fiber cutting disc according to claim 1, characterized in that: The inner wall of the cutter head body (1) is fixedly installed with a mounting post (9), the mounting post (9) is provided with threads, the mounting post (9) is threadedly connected with a cover plate (6), the bottom end of the cover plate (6) is provided with a threaded hole (12), and the mounting post (9) is threadedly connected to the threaded hole (12).
5. The aramid staple fiber cutting disc according to claim 4, characterized in that: A handle (7) is fixedly installed on the top of the cover plate (6). The handle (7) is arched. A slot (3) is opened on the top of the cover plate (6). The slot (3) is cylindrical. There are twelve slots (3).
6. The aramid staple fiber cutting disc according to claim 1, characterized in that: The cutter head body (1) has a groove (16) inside. The groove (16) is cylindrical. A limit block (13) is slidably provided on the inner wall of the groove (16). The limit block (13) is circular. A column (15) is fixedly installed at the top of the limit block (13). The column (15) is cylindrical. The top of the column (15) passes through the top of the cutter head body (1). The top of the column (15) is rotatably connected to a plug rod (8) through a bearing. The plug rod (8) is arched.
7. The aramid staple fiber cutting disc according to claim 6, characterized in that: A spring (14) is fixedly installed on the inner wall of the groove (16), and one end of the spring (14) is fixedly connected to the inner wall of the groove (16).