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Bending blade, thread clipper with blade and blade manufacturing method

A blade and bending technology, applied in the field of bending blades, yarn scissors with the blade and blade manufacturing, can solve problems such as reduced efficiency, and achieve the effects of reducing grinding area, high efficiency, and reducing surface roughness

Pending Publication Date: 2021-02-02
福建大利五金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the existing blade needs to grind the inner surface after heat treatment to remove the oxide layer on the surface and provide quality. However, the inner surface of the existing blade is flat, and the area to be ground is the entire inner surface, so that the entire The efficiency of the grinding process is greatly reduced

Method used

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  • Bending blade, thread clipper with blade and blade manufacturing method
  • Bending blade, thread clipper with blade and blade manufacturing method
  • Bending blade, thread clipper with blade and blade manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as Figure 4-6 As shown, a bending blade is characterized in that: it includes a blade body 1 for installation and fixed connection with the handle 4, a bending part connected to one edge of the blade body 1 and bent relative to the plane where the blade body 1 is located 2 and the cutting edge 3 arranged on the outer edge line of the bent portion 2 away from the blade body 1, the thickness L of the blade body 1 and the bent portion 2 is: 0.5-0.9 mm.

[0056] Preferably, the thickness L of the blade body 1 and the bent portion 2 is 0.7mm.

[0057] Preferably, the angle α between the inner surface of the bent portion 2 and the plane where the blade body 1 is located is: 150°-170°. The inner surface is the mating surface when the two bent blades cooperate with each other to cut.

[0058] Preferably, the angle α between the inner surface of the bent portion 2 and the plane where the blade body 1 is located is 160°.

[0059] Preferably, the bending blade is formed b...

Embodiment 2

[0065] Such as Figure 4-9 As shown, a yarn cutter with the bending blade described in Embodiment 1 is characterized in that: it also includes a handle 4, and the handle 4 includes two pressing arms 41 arranged at intervals and connected to the two pressing arms 41 The elastic return section 42 between the lower ends;

[0066] Each pressing arm 41 is provided with a mounting portion at one end away from the elastic reset section 42, and the number of the bending blades is two pieces and are respectively fixedly installed on the mounting portions of the two pressing arms 41, and the blade of each bending blade The mouth 3 points to the side where the other bending blade is located, and the inner surface of each bending blade faces the inner surface of the other bending blade;

[0067] When the pressing arm 41 of the movable pressing handle 4 makes the two pressing arms 41 approach each other, it can drive the two bending blades to carry out cooperative shearing, and when the a...

Embodiment 3

[0079] Such as Figure 4-6 10, a method of manufacturing the bending blade described in Embodiment 1 is characterized in that: comprising the following steps:

[0080] ①Blanking: place the steel strip on the punching machine, and punch out the positioning hole 11, the oblique slot 12 of each bending blade and the edge scrap 5 between two adjacent bending blades along the length direction of the steel strip , the edge scrap 5 is arranged obliquely relative to the length direction of the steel strip, and then the steel strip is bent to form the blade body 1 and the bending portion 2 of each bending blade, and finally according to the shape of each bending blade on the steel strip Creases on the belt that emboss the outer contour of each bent blade;

[0081] ②Heat treatment: send the steel strip punched in step ① into the quenching furnace for heat treatment, so that the steel strip can meet the hardness requirement;

[0082] ③Edge sharpening: Send the steel strip after the hea...

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Abstract

The invention relates to a bending blade, a thread clipper with the bending blade and a blade manufacturing method. The blade comprises a blade body used for being fixedly connected with a handle in amounted manner, a bending portion connected beside the edge of one side of the blade body and arranged in a bent manner relative to the plane where the blade body is located, and a cutting edge arranged on an outer side edge line, away from the blade body, of the bending portion, wherein the thickness L of the blade body and the thickness L of the bending portion are 0.5-0.9 mm. The bending bladeis provided with the bending portion, so that the bending strength of the blade can be improved, the thickness of the blade can be made smaller, and the requirement for the same shearing strength canbe met; and the bending blade in the blade manufacturing method does not need to be subjected to outer opening face grinding, the bending portion an be directly bent through the bending process, thebeneficial effects of being high in efficiency, high in size precision, good in surface quality, low in energy consumption and the like are achieved, after the blade is bent, only the inner opening face of the bending portion needs to be ground, the grinding area can be reduced, therefore, the grinding efficiency can be greatly improved, and the surface roughness after grinding is reduced.

Description

technical field [0001] The invention relates to the field of scissors, in particular to a bending blade, a yarn cutter with the blade and a blade manufacturing method. Background technique [0002] Yarn cutter is a tool for cutting yarn, which is widely used in the field of clothing. The blades of existing yarn scissors mostly adopt such as Figure 1-3 According to the above structure, the blade needs to grind a large amount of outer surface during the production process, and the thickness of the blade needs to reach 1.2 mm, so as to meet the use requirement of the shear strength of the blade. And the existing blade needs to grind the inner surface after heat treatment to remove the oxide layer on the surface and provide quality. However, the inner surface of the existing blade is flat, and the area to be ground is the entire inner surface, so that the entire The efficiency of the grinding process is greatly reduced. Contents of the invention [0003] The object of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26B17/00
CPCB26B17/00
Inventor 陈品格陈兴进
Owner 福建大利五金科技有限公司
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