Composite spiral blade die lettering knife

Abstract

The utility model discloses a composite spiral blade die lettering knife which comprises a knife handle, a knife head is arranged at one end of the knife handle, three spiral taper planes are arranged on the surface of the head end of the knife head, and a spiral blade with a spiral angle of 3-10 degrees is formed between every two adjacent spiral taper planes, so that cutting force of a cutting edge can be dispersed, impact of the cutting edge is reduced, and the lettering efficiency is improved. The straight blade type reinforcing blade with the length of 0.02-0.05 mm and the included angle of 120-130 degrees is arranged at the position, at the tool nose, of the tool bit, so that the abrasion resistance and the strength of the tool nose can be enhanced, meanwhile, the machining precision can be guaranteed, and the tool bit is reasonable in structural design, high in precision, good in cutting effect, good in rigidity and high in durability, the tool nose is not prone to being damaged in the machining process, and the tool is not prone to being broken. The problem that an existing tool is abnormally broken due to low tool nose strength is solved, and the machining quality and the machining efficiency can be improved.

Description

A composite spiral blade mold engraving knife Technical Field

[0001] This utility model relates to the field of mold processing cutting tool technology, and more specifically, to a composite spiral blade mold engraving knife. Background Technology

[0002] In the processing and production of rubber products, it is often necessary to set characters such as numbers and letters on the surface of the rubber products. Therefore, corresponding character marking grooves need to be set in the molding cavity of the rubber product molding mold. These character marking grooves are generally machined using mold processing tools. However, existing mold processing tools generally have the following shortcomings: low tool tip strength, poor impact resistance, easy breakage, and low durability, which seriously affects the processing quality, accuracy, and efficiency. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a composite spiral blade mold engraving knife with a blade tip that is not easily damaged, has good rigidity, high durability, is not easy to break, can solve the problem of abnormal breakage caused by low blade tip strength of existing knives, and can improve processing quality and processing efficiency.

[0004] To achieve the above objectives, this utility model provides a composite spiral blade engraving knife, including a handle, one end of which is provided with a blade head, the head end surface of which is provided with three spiral tapered planes, and a spiral blade with a spiral angle of 3 to 10° is formed between two adjacent spiral tapered planes, and the blade head is provided with a straight blade reinforcing blade with a length of 0.02 to 0.05 mm and an included angle of 120 to 130° at the blade tip.

[0005] Preferably, the cone angle of the cutter head is 25-35°.

[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] The cutting head of this invention has three helical tapered planes on its head end surface. Between two adjacent helical tapered planes, a helical blade with a helical angle of 3–10° is formed. This disperses the cutting force and reduces the impact on the cutting edge. Furthermore, the cutting head has a straight reinforcing blade at the tip, with a length of 0.02–0.05 mm and an included angle of 120–130°. This large-angle reinforcing blade enhances the wear resistance and strength of the cutting tip while ensuring machining accuracy. The invention features a reasonable structural design, high precision, and good cutting effect. The cutting tip is not easily damaged during machining, exhibiting good rigidity, high durability, and is less prone to breakage. It solves the problem of abnormal breakage caused by low cutting tip strength in existing cutting tools, thus improving machining quality and efficiency. 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 is a structural schematic diagram of the composite spiral blade mold engraving knife provided in an embodiment of the present invention;

[0012] Figure 2 is a dimensioning diagram of the composite spiral blade mold engraving knife provided in an embodiment of this utility model;

[0013] Figure 3 is a photograph of the blade tip of the composite spiral blade engraving knife provided in this embodiment of the present invention in a visual inspection device photographing environment. 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 Figures 1 to 3. An embodiment of this utility model provides a composite spiral blade mold engraving knife, including a handle 1, one end of which is provided with a blade head 2. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0016] As shown in Figure 1, the head end surface of the cutter head 2 is provided with three helical taper planes 3, and a helical blade 4 with a helical angle of 3 to 10° is formed between two adjacent helical taper planes 3, which can disperse the cutting force of the cutting edge and reduce the impact of the cutting edge.

[0017] As shown in Figures 1 and 2, the cutter head 2 has a straight reinforcing blade 5 with a length L of 0.02 to 0.05 mm and an included angle A of 120 to 130° at the tip. That is, a large-angle reinforcing blade is added to the tip, which can enhance the wear resistance and strength of the tip, while also ensuring machining accuracy.

[0018] Preferably, in specific implementation, the length L of the straight-bladed reinforcing blade 5 can be 0.03 mm, and the included angle A can be 120°.

[0019] In addition, the cone angle of the cutter head 2 can be set to 25-35°, preferably 30°.

[0020] 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.

[0021] During machining, high-quality cemented carbide materials can be used to improve the wear resistance of the cutting tool. First, a spiral cutting edge is manufactured, and then a reinforcing cutting edge with a larger angle than the existing cutting tip is machined to form a composite reinforcing edge, thereby achieving the purpose of strengthening the entire cutting edge.

[0022] In summary, this utility model has a reasonable structural design, high precision, good cutting effect, and the cutting tip is not easily damaged during processing. It has good rigidity, high durability, and is not prone to breakage. It solves the problem of abnormal breakage of existing cutting tools due to low cutting tip strength, and can improve processing quality and efficiency.

[0023] 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 composite spiral edge die scribing tool characterized by: The tool includes a handle, one end of which is provided with a blade tip. The head end surface of the blade tip is provided with three helical taper planes, and a helical blade with a helical angle of 3 to 10° is formed between two adjacent helical taper planes. The blade tip is provided with a straight-bladed reinforcing blade with a length of 0.02 to 0.05 mm and an included angle of 120 to 130° at the blade tip.

2. The composite spiral blade engraving knife according to claim 1, characterized in that: The cone angle of the cutter head is 25-35°.

3. The composite spiral-edge die writing tool of claim 1 wherein: Both the handle and the blade are made of cemented carbide.

4. The composite spiral blade engraving knife according to claim 1, characterized in that: The surface of the cutter head is coated with titanium carbonitride.

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