A mold polishing tool
By designing the structure of the holding section, extension section, and polishing section of the mold polishing knife, the problem of fitting existing polishing knives on complex curved surfaces was solved, achieving efficient and high-precision mold polishing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN XINGDA AUTO PARTS CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-04
AI Technical Summary
Existing mold polishing cutters are difficult to fit the workpiece surface when dealing with corners, deep cavities, or complex curved surfaces of mold cavities, resulting in polishing dead corners, long polishing time, and difficulty in precision control, making it difficult to meet high precision requirements.
Design a mold polishing cutter, including a holding section, an extension section and a polishing section. The included angle between the polishing section and the extension section is 150-180°. The polishing section has polishing stripes. The extension section gradually thins out. The holding section can be clamped onto a polishing machine. It is suitable for polishing complex curved surfaces.
It improves the adaptability and stability of polishing cutters, reduces polishing dead angles, and achieves efficient and high-precision polishing to meet the processing needs of complex molds.
Smart Images

Figure CN224587827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold processing tools, and in particular to a mold polishing knife. Background Technology
[0002] In the field of mold processing, polishing is a key step in ensuring mold precision and surface quality, directly affecting the appearance, dimensional accuracy, and service life of molded products. Currently available mold polishing tools have many limitations. For example, most polishing cutters are designed with straight lines, making it difficult for them to conform to the workpiece surface when dealing with corners, deep cavities, or complex curved surfaces of mold cavities. This can easily lead to polishing dead corners, resulting in uneven surface finish, long polishing time, and difficulty in precision control. These drawbacks make it difficult to meet the processing requirements of high-precision molds. Therefore, there is an urgent need for a mold polishing cutter with optimized structure, strong adaptability, and superior polishing effect. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a mold polishing knife.
[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a mold polishing knife, including a holding section, an extension section and a polishing section; The holding section is installed at the upper end of the extension section, and the polishing section is installed at the lower end of the extension section. Polishing stripes are provided on at least a portion of the lower end of the extension section and on the polished section; There is an angle between the polishing section and the extension section, and the value of the angle is set to 150-180°.
[0005] As one of the preferred embodiments of this utility model, polishing stripes are provided on the front and / or back of the extension section and the polishing section.
[0006] In one of the preferred embodiments of this utility model, the thickness of the extension section and the polishing section gradually decreases from top to bottom.
[0007] As one of the preferred embodiments of this utility model, the maximum thickness of the extension section is set to 1 mm.
[0008] As one of the preferred embodiments of this utility model, a label adhesion area is provided at the end of the extension section near the holding section.
[0009] As one of the preferred embodiments of this utility model, the cross-sectional outline of the holding section is set to be non-circular, and the upper end of the holding section is provided with an annular groove for mounting a polishing device.
[0010] As one of the preferred embodiments of this utility model, the cross-sectional outline of the holding section is set as a regular hexagon.
[0011] As one of the preferred embodiments of this utility model, the holding section, the extension section and the polishing section are integrally formed.
[0012] As one of the preferred embodiments of this utility model, the holding section, the extension section and the polishing section are made of carbon tool steel.
[0013] The beneficial effects of this utility model are as follows: A mold polishing cutter includes a holding section, an extension section, and a polishing section; the holding section is installed at the upper end of the extension section, and the polishing section is installed at the lower end of the extension section; polishing stripes are provided on at least a portion of the lower end of the extension section and on the polishing section; there is an included angle between the polishing section and the extension section, and the included angle is set to a range of 150-180°; the above structure retains the efficient processing capability of a straight polishing cutter on a flat surface, and can also penetrate into complex areas such as corners and grooves of the mold through a large tilt angle, reducing polishing dead angles and improving the comprehensiveness of surface treatment. It has significant improvements in polishing range, operational stability, adaptability, and durability, and can effectively meet the high-efficiency and high-precision polishing requirements of complex molds. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a mold polishing knife. Detailed Implementation
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0019] Reference Figure 1 A mold polishing knife includes a holding section 10, an extension section 20 and a polishing section 30; The holding section 10 is installed at the upper end of the extension section 20, and the polishing section 30 is installed at the lower end of the extension section 20. Polishing stripes 40 are provided on at least a portion of the lower end of the extension section 20 and on the polished section 30; There is an angle between the polishing section 30 and the extension section 20, and the value of the angle is set to 150-180°.
[0020] In this invention, the polishing blade is operated by gripping the holding section 10, and the polishing section 30 and the extension section 20 are inserted into the mold for polishing. The length of the extension section 20 and the included angle between the polishing section 30 and the extension section 20 can be reasonably designed according to the depth of the mold, so that the polishing section 30 can be smoothly inserted into the mold. The corners, deep cavities and / or complex curved surfaces inside the mold are polished by the polishing stripes 40 on the extension section 20 and the polishing section 30.
[0021] Reference Figure 1 In some embodiments, the cross-sectional outline of the holding section 10 is set to be non-circular, and the upper end of the holding section 10 is provided with an annular groove 60 for mounting the polishing device. This setting allows the polishing knife to be mounted on the polishing machine, and the polishing machine drives the polishing knife to reciprocate to polish the mold. The non-circular cross-sectional outline of the holding section 10 can be adapted to the slot on the polishing machine, which can limit the relative rotation between the polishing knife and the polishing machine, thereby improving the polishing quality.
[0022] Reference Figure 1 In some embodiments, the cross-sectional outline of the gripping segment 10 is set to a regular hexagon. Of course, the cross-sectional outline of the gripping segment 10 can also be set to an equilateral triangle, a regular quadrilateral, etc., without limitation.
[0023] Reference Figure 1 In some embodiments, polishing stripes 40 are provided on the front and / or back of the extension 20 and the polishing section 30. This arrangement can polish both sides of the groove in the mold at the same time, which is beneficial to improving polishing efficiency.
[0024] Reference Figure 1 In some embodiments, the thickness of the extension section 20 and the polishing section 30 gradually decreases from top to bottom. This arrangement can further improve the adaptability of the polishing cutter and meet the polishing requirements of grooves with different depths within the mold; see reference. Figure 1 In some embodiments, the maximum thickness of the extension 20 is set to 1 mm.
[0025] Reference Figure 1 In some embodiments, the extension 20 is provided with a label adhesion area 50 at one end near the holding section 10 for attaching the mold corresponding to the polishing knife, making it convenient for workers to use.
[0026] Reference Figure 1 In some embodiments, the holding section 10, the extension section 20, and the polishing section 30 are integrally formed.
[0027] Reference Figure 1 In some embodiments, the gripping section 10, the extension section 20, and the polishing section 30 are made of carbon tool steel.
[0028] The advantages of this utility model are as follows: the above structure retains the high efficiency of a straight polishing cutter on a flat surface, while also being able to penetrate into complex areas such as corners and grooves of the mold through a large tilt angle, reducing polishing dead angles and improving the comprehensiveness of surface treatment. It has significant improvements in polishing range, operational stability, adaptability and durability, and can effectively meet the high efficiency and high precision polishing requirements of complex molds.
[0029] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.
Claims
1. A mold polishing tool, characterized in that: It includes a holding section (10), an extension section (20), and a polishing section (30); The holding section (10) is installed at the upper end of the extension section (20), and the polishing section (30) is installed at the lower end of the extension section (20). Polishing stripes (40) are provided on at least a portion of the lower end of the extension section (20) and on the polished section (30). The polished section (30) and the extended section (20) have an angle between them, and the angle is set to a range of 150-180°.
2. The mold polishing tool according to claim 1, characterized in that: The polishing stripes (40) are provided on the front and / or back of the extension (20) and the polishing section (30).
3. A mold polishing tool according to claim 1, characterized in that: The thickness of the extension section (20) and the polished section (30) gradually decreases from top to bottom.
4. A mold polishing tool according to claim 3, characterized in that: The maximum thickness of the extension section (20) is set to 1 mm.
5. A mold polishing tool according to claim 1, characterized in that: The extension section (20) has a label adhesion area (50) at one end near the holding section (10).
6. A mold polishing tool according to claim 1, characterized in that: The cross-sectional outline of the holding section (10) is set to be non-circular, and the upper end of the holding section (10) is provided with an annular groove (60) for the polishing device to be mounted.
7. A mold polishing tool according to claim 6, characterized in that: The cross-sectional outline of the holding section (10) is set as a regular hexagon.
8. A mold polishing tool according to claim 1, characterized in that: The holding section (10), the extension section (20) and the polishing section (30) are integrally formed.
9. A mold polishing tool according to claim 1, characterized in that: The grip section (10), extension section (20) and polishing section (30) are made of carbon tool steel.