Mold anti-sticking ring machining cutter
By designing a tool for machining anti-sticking rings in molds, and using carbide materials and tool heads with specific structures, the problems of machining accuracy and cost of anti-sticking rings in molds were solved, achieving efficient and low-cost machining of anti-sticking rings and meeting product appearance requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing technology, the machining of anti-sticking rings in the narrow space of the mold cavity suffers from insufficient precision, low precision, large differences in surface roughness, and high cost.
Design a tool for machining anti-sticking rings in molds. The tool holder and tool head are made of cemented carbide. The tool head has four centrally symmetrical end teeth and a cutting groove. The end teeth form a 75-degree angle with the back face. The tool tip has a 0.02mm arc. The surface can be coated with titanium carbonitride. It is suitable for ordinary CNC machine tools and can realize the cutting of anti-sticking rings.
It improves the machining accuracy and surface roughness of the mold anti-stick ring, reduces costs, meets product appearance requirements, improves machining efficiency and tool durability, and is suitable for confined spaces.
Smart Images
Figure CN224073424U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold processing cutting tool technology, and more specifically, to a mold anti-sticking ring processing cutting tool. Background Technology
[0002] In the processing and production of rubber rings, they can be injection molded using molds. To prevent the rubber rings from sticking together, anti-sticking rings can be placed inside the mold cavity. For small and deep mold cavities, the anti-sticking rings are close to the side walls of the cavity. Ordinary cutting tools have excessively large handles and relatively short cutting edges, making it impossible to process the anti-sticking rings. Currently, anti-sticking rings are basically laser-engraved. However, existing laser engraving processes have the following problems: 1. The processing precision of laser engraving machines varies, resulting in generally low concentricity of the engraved anti-sticking rings; 2. The surface roughness of laser-engraved anti-sticking rings varies greatly, sometimes failing to meet product appearance requirements; 3. The cost of laser-engraved anti-sticking rings is high, ranging from approximately 30,000 to 60,000 yuan per mold set. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a tool for processing mold anti-stick rings that can replace laser processing in confined spaces, can be used on ordinary CNC machine tools, has high precision, good cutting effect, good rigidity, effectively improves processing efficiency, produces anti-stick rings with surface roughness that fully meets requirements, improves product appearance quality, and reduces total processing costs.
[0004] To achieve the above objectives, this utility model provides a tool for machining mold anti-sticking rings, including a tool holder. One end of the tool holder is provided with a tool head. The head end of the tool head is provided with four centrally symmetrically distributed end teeth and four cutting grooves. The cutting grooves are located between two adjacent end teeth. Each end tooth is provided with a front cutting face and a rear cutting face. Each end tooth is provided with two tool clearance angles, one with the outer circle facing inward and the other with the center facing outward, so that a main cutting edge with an included angle of 75 degrees is formed between the front cutting face and the rear cutting face. The tip of each end tooth is provided with an arc with a radius of 0.02 mm.
[0005] Preferably, the cutting groove is configured as a straight chip discharge groove.
[0006] Preferably, both the handle and the blade are made of cemented carbide.
[0007] Preferably, the surface of the cutter head is coated with titanium carbonitride.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] This utility model has a reasonable structure and can be used for the cutting and processing of anti-sticking rings in molds. It has high precision, good cutting effect, no sticking during processing, good rigidity, high durability, and is not easy to break. It effectively improves processing efficiency and can replace laser processing in confined spaces. It can be used on ordinary CNC machine tools. The surface roughness of the processed anti-sticking ring fully meets the requirements, and the concentricity can be controlled within ±0.005mm, which can improve the appearance quality of the product and greatly reduce the total processing cost. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of the mold anti-sticking ring processing tool provided in this embodiment of the utility model;
[0012] Figure 2 This is an enlarged view of the cutting head of the mold anti-sticking ring processing tool provided in this embodiment of the utility model;
[0013] Figure 3 This is a diagram showing the cutting head of the mold anti-sticking ring machining tool provided in this embodiment of the utility model. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0015] Please refer to Figure 1 The present invention provides a tool for processing mold anti-sticking rings, including a tool holder 1, a tool head 2 at one end of the tool holder 1, and four end teeth 3 and four cutting grooves 4 at the head end of the tool head 2. The components of this embodiment will be described in detail below with reference to the accompanying drawings.
[0016] like Figure 2 and Figure 3As shown, the four end teeth 3 are centrally symmetrically distributed. Each end tooth 3 is provided with a rake face 31 and a flank face 32. Each end tooth 3 is provided with two tool clearance angles, one with the outer circle facing inward and the other with the center facing outward, so that a main cutting edge 33 with an included angle θ of 75 degrees is formed between the rake face 31 and the flank face 32. The main cutting edge 33 is located on the end face of the tool.
[0017] The cutting tip of the cutter head 2 is evenly distributed across the end faces of the four end teeth 3. Each end tooth 3 has a cutting tip 34 with a radius of 0.02mm and an arc R, which improves the durability and precision of the cutter. The distance between the cutting tips of two opposing end teeth 3 is the diameter of the required anti-sticking ring (circular ring).
[0018] like Figure 1 and Figure 2 As shown, the cutting groove 4 is located between two adjacent end teeth 3, and the cutting groove 4 can preferably be configured as a straight chip removal groove.
[0019] In actual manufacturing, both the tool holder 1 and the tool head 2 can be made of cemented carbide materials, such as tungsten steel, diamond micronized cemented carbide, or other alloy materials. In addition, the surface of the tool head 2 can also be coated with titanium carbonitride.
[0020] During processing, the tool for machining the anti-sticking ring of the mold can be installed on various CNC machine tools. After the CNC machine tool has programmed the mold processing, start the CNC machine tool, find the mold reference, align the central axis of the tool with the central axis of the mold cavity, and the tool processes in the -Z direction at a certain speed. After completion, lift the tool to complete the machining of the anti-sticking ring on the cavity.
[0021] In summary, this utility model has a reasonable structure and can be used for the cutting and machining of anti-sticking rings in molds. It has high precision, good cutting effect, does not stick to the tool during processing, has good rigidity, high durability, and is not easy to break. It effectively improves processing efficiency, can replace laser processing in confined spaces, and can be used on ordinary CNC machine tools. The surface roughness of the processed anti-sticking ring fully meets the requirements, and the concentricity can be controlled within ±0.005mm, which can improve the appearance quality of the product and greatly reduce the total processing cost.
[0022] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A mold release ring processing tool characterized by: The utility model relates to a cutting tool, including handle, one end of handle is equipped with tool bit, the head end of tool bit is equipped with four end teeth of central symmetry distribution and four tool grooves, the tool groove is located between two adjacent end teeth, each end tooth is equipped with rake face and relief respectively, each end tooth is equipped with two tool relief that circle is inwards and the center of circle is outward, to make the included angle of 75 degrees of main cutting edge between rake face and relief, the tool tip of each end tooth is equipped with the circular arc of 0.02mm radius respectively.
2. A mold release ring tool according to claim 1 wherein: The tool groove is a straight chip flute.
3. A mold release ring tool according to claim 1 wherein: The handle and the tool bit are made of hard alloy material.
4. The mold release ring machining tool of claim 1, wherein: The surface of the tool bit is provided with a titanium carbonitride coating.