CN212170498U - Round cutter for cutting smoke filter layer - Google Patents

Abstract

The utility model discloses a smoke filter layer cutting circular cutter, which comprises a cutting circular cutter (1), wherein the bottom edge of the cutting circular cutter (1) is taken as a cutting edge (2), the upper part of the cutting circular cutter (1) is integrally connected with a hollow handle (3), and the outer surface of the handle (3) is provided with knurls (4); the inner diameter of the circle cutting knife (1) is the same as the outer diameter of the smoke filtering layer of the protective tank. The circle cutting knife (1) is made of Cr12MoV material. The utility model relates to a rationally, have very good practical application and worth.

Description

Round cutter for cutting smoke filter layer

Technical Field

The utility model relates to a smoke filter layer technical field specifically is a smoke filter layer cuts out circle cutter in respirator of protective mask.

Background

The smoke filter layer is a key part of a respirator in the protective mask, glass fiber paper is folded into a certain folding height through an automatic paper folding machine, and then the glass fiber paper is made into the smoke filter layer meeting the size requirement through a cutting forming process. The glass fiber paper has poor toughness and low strength, and the paper layer has high folding edge and small diameter, so the cutting and forming difficulty is high.

At present, the smoke filter layer is cut and formed into the following forms:

(1) cutting and forming by electric scissors

Because the diameter of the smoke filter layer of the respirator is small, the cutting difficulty of the electric shears is high, the cutting excircle is not smooth and smooth, the forming quality is unstable, and the product performance is influenced, so that the problems of low qualified rate, high rejection rate, large potential safety hazard and the like of the smoke filter layer are caused.

(2) Laser cutting and forming

High temperature is generated by laser cutting, so that a cutting surface has burning marks, a hot melt adhesive line on the filter paper layer is easily melted, and the hot melt adhesive is cooled and hardened immediately after the laser is passed, so that a colloid tumor is formed on the outer circle of the paper layer, the colloid tumor is hard and prominent, the sealing quality of glue filling is influenced, and the quality of the smoke filter layer is influenced.

(3) Water cutting formation

Because the existing water cutting production line of a company can not be used, a production line needs to be redesigned and processed, the investment is large, the time consumption is long, and the production requirement of a workshop can not be realized in a short time.

The structural design of the smoke filtering layer cutting tool is carried out by combining the characteristics of the product.

Disclosure of Invention

The utility model discloses a according to the requirement of filter-smoke layer cutting shaping, design an investment is little, easy operation, and the place is not limited, practices thrift ply, and shaping ply outward appearance meet the requirements, the cutting tool that the quality uniformity is good.

The utility model discloses an adopt following technical scheme to realize:

a circle cutting tool for a smoke filtering layer comprises a circle cutting knife, wherein the edge of the bottom of the circle cutting knife is used as a cutting edge, the upper part of the circle cutting knife is integrally connected with a hollow handle, and knurling is arranged on the outer surface of the handle; the inner diameter of the circle cutting knife is the same as the outer diameter of the smoke filtering layer of the protective tank.

Preferably, the circle cutting knife is made of Cr12MoV material.

Preferably, two marking points on the same diameter are arranged on the cutting edge.

The circle cutting process comprises the following steps: the folded paper layer strips (rectangle with the thickness of about 450mm multiplied by 568 mm) are placed on an operating platform, an operator tightly holds a cutter handle, the cutting edge faces downwards, two mark points on the cutting edge are located on the same rubber line of the paper layer, the fact that the rubber line passes through the circle center of a ring cutter (the cutting edge) is shown, the cutter is rotated when the arm exerts force downwards, circle cutting is completed, and the size of the smoke filter layer can be directly cut out due to the fact that the inner diameter of the ring cutter is the same as the outer diameter of the smoke filter layer of the protective tank. The smoke filter can be processed by one person for 4 seconds or simultaneously by a plurality of persons, the energy consumption and the environmental pollution are avoided, the size of the cut smoke filter layer meets the requirement of a drawing, and the periphery is smooth and has no burrs. The smoke filter is now cut with the tool to incorporate the protective can assembly process and used for shop practice.

The round cutting tool for the smoke filtering layer is a novel cutting tool specially designed for cutting a round smoke filtering layer of a respirator. According to the characteristics of the product, the paper layer is saved in consideration of small investment, easy operation and unlimited site, and the cut paper layer has smooth and smooth periphery and no burr.

The utility model has the advantages of as follows:

1. the design is based on the characteristics of the product, the cutter has simple structure, small investment and easy processing.

2. The designed cutter is verified by tests, and the cut smoke filter layer meets the requirements on size and appearance.

3. The operation is simple, one person can process the food, one food can be cut in 4s, a plurality of persons can process the food simultaneously, and the food has no energy consumption and no environmental pollution.

4. The material utilization rate is high, and the production cost is reduced.

The utility model relates to a rationally, have very good practical application and worth.

Drawings

Fig. 1 shows a schematic view of a smoke filter layer circular cutting tool.

In the figure: 1-cutting a circle knife, 2-cutting edge, 3-handle and 4-knurling.

Detailed Description

The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.

A circle cutting tool for a smoke filtering layer comprises a circle cutting knife 1, wherein the edge of the bottom of the circle cutting knife 1 is used as a cutting edge 2, the upper part of the circle cutting knife 1 is integrally connected with a hollow handle 3, and the outer surface of the handle 3 is provided with knurls 4; the inner diameter of the circle cutting knife 1 is the same as the outer diameter of the smoke filtering layer of the protective tank. Two mark points on the same diameter of the cutting edge are arranged on the cutting edge, so that a rubber line passes through the circle center of the cutting edge when the smoke filter layer is cut.

In specific implementation, the smoke filter layer circle cutting tool is made of a material through relevant experiments, the circle cutting tool 1 is made of a Cr12MoV material, the material is hot-work die steel, the fatigue resistance and the wear resistance are high, and the material can reach HRC70 after heat treatment. The knurling line of handle department plays antiskid.

The circle cutting process comprises the following steps: the folded paper layer strip (rectangle about 450mm multiplied by 568 mm) is placed on an operation table, an operator tightly holds a cutter handle, a cutting edge faces downwards, a glue line of the paper layer penetrates through the center of the cutting edge, the cutter is rotated when an arm applies downward force, and circle cutting is completed. The smoke filter is now cut with the tool to incorporate the protective can assembly process and used for shop practice.

This circle cutter is cut out to filter cigarette layer is according to filter cigarette layer nature and cutting shaping requirement, through cutter machinery cutting mode cutting toughness poor, intensity is low, the high ply of corrugating, this cutter design simple structure, the material selects Cr12MoV, quenching hardness HRC70, this mode investment is little, easy operation, the place is not limited, practices thrift the ply, is fit for small batch production of filter cigarette layer. After the design of the circular cutting tool for the smoke filtering layer is finished, trial production and test verification of each stage are finished at present, all performances meet the technical requirements of the overall product, and all test results show that the main functions and performance indexes of the product meet the requirements of development tasks. In addition, the design, processing and application of the round cutting tool for the smoke filtering layer enable a company to avoid huge funds for putting into a water cutting production line, and a new way is opened up for a small-batch round cutting mode for the smoke filtering layer.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred examples, those skilled in the art should understand that modifications or equivalent substitutions can be made by referring to the technical solutions of the present invention without departing from the scope of the present invention, and all should be considered as included in the claims of the present invention.

Claims (3)

1. The utility model provides a circle cutter is cut out to filter cigarette layer which characterized in that: the cutting tool comprises a circle cutting knife (1), the edge of the bottom of the circle cutting knife (1) is used as a cutting edge (2), a hollow handle (3) is integrally connected to the upper part of the circle cutting knife (1), and knurls (4) are arranged on the outer surface of the handle (3); the inner diameter of the circle cutting knife (1) is the same as the outer diameter of the smoke filtering layer of the protective tank.

2. The round cutter for smoke filter layer according to claim 1, wherein: the circle cutting knife (1) is made of Cr12MoV material.

3. The round cutter for smoke filter layer according to claim 1, wherein: two mark points on the same diameter are arranged on the cutting edge (2).

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