JPH0576418A - Material for brush - Google Patents

Abstract

PURPOSE:To present a brush having surface treatment function for removing burrs mainly from metallic products, stones, or the like, and function for avoiding static electricity. CONSTITUTION:A brush has composite fibers consisting of the first fibers of synthetic resin fibers containing grains, the second fibers of carbon fibers, the third fibers of metallic fibers, and the fourth fibers of the synthetic resin fibers including no grains according to requirement, which are mixed with each other and the fibers are composed of the first fibers of 10-70weight%, the second fibers of 10-50weight%, the third fibers of 10-50weight%, and the fourth fibers of 10-50weight%.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for a brush, which mainly provides a brush having both a surface treatment function such as deburring of metal products and stone materials and a static electricity removing function.

[0002]

2. Description of the Related Art Conventionally, deburring of various metal products,
Polishing and grinding have been performed with various brushes. These brushes use filaments having a strength corresponding to the surface hardness of the material to be treated, and the filaments are bundled, or the filaments are braided and bundled and used as a material for the brush. As the conventional brush material described above, for example, as disclosed in Japanese Patent Publication No. 62-54631 proposed by the applicant of the present invention, a synthetic resin made of carborundum, alumina oxide, etc., in which abrasive particles are barely exposed on the surface. There are some that use filaments. This brush material is used when the surface hardness of the material to be treated is relatively high, and it is possible to easily carry out polishing / grinding of the surface of the material to be treated, deburring, or the like.

[0003]

However, in the conventional brush as described above, when the surface of the material to be treated is treated,
There was a problem that static electricity was generated by friction. Or even if it doesn't generate static electricity by itself,
At least there was no effect of removing static electricity on the surface of the material to be treated. Then, this static electricity may ignite a flammable organic solvent to cause a fire, or to adsorb dust or dust floating in the air.

On the other hand, as a method which does not use the above-mentioned brush, the shot method, the method of removing burrs by hydraulic pressure or the method of removing burrs by embossing has a problem that electrical breakdown occurs.

Therefore, polishing while removing static electricity
There has been a strong demand for a brush capable of performing surface treatment such as grinding and deburring, and a material therefor.

[0006]

The present invention has been proposed in view of the above, and is a first fiber which is a synthetic resin fiber containing abrasive grains, a second fiber which is a carbon fiber, and a metal fiber. Which is a composite fiber in which the first fiber is 10 to 70% by weight and the second fiber is 10 to 5%.
The present invention relates to a brush material, characterized in that the content of the third fiber is 0 to 50% by weight.

Further, the present invention provides a material for a brush, which is obtained by mixing 10 to 50% by weight of a synthetic resin fiber containing no abrasive grains as a fourth fiber in the above-mentioned composite fiber in which the first to third fibers are mixed. Is also proposed.

[0008]

EXAMPLES Examples of the present invention will be described below. Examples of the first fiber in the present invention include polyamide and particle size #
It is possible to use those containing 10 to 50% by weight of 46 to 2000 alumina powder or silicon powder. The above-mentioned first fiber mainly contributes to deburring and polishing / grinding effects, and the effect is greater as abrasive grains having particularly high hardness are used.

The second fiber in the present invention is, for example, a fiber having a thickness of 0.1 to 0.5 mm in which carbon is continuously applied to the outer peripheral portion of a polyamide core wire to form a carbon layer, or Fibers having a thickness of 0.1 to 0.5 mm, in which 30 to 60% by weight of carbon powder is mixed with polyamide, polypropylene or polyvinyl chloride, can be used. The above-mentioned second fiber mainly contributes to the effect of removing static electricity.

As the third fiber in the present invention, for example, one or more of steel fiber, phosphor bronze fiber and brass fiber can be used. The above-mentioned third fiber contributes to deburring, polishing and grinding effects, and the effect is particularly large when a metal having a high hardness is used. In addition, this third fiber,
Since it has excellent conductivity, it also contributes to the effect of removing static electricity.

As the fourth fiber used in the present invention, for example, a fiber made of polyamide (nylon), polypropylene, polyvinyl chloride or the like and having a thickness of 0.1 to 0.5 mm can be used. Fourth mentioned above
The fibers give the entire material for brushes waist (elasticity). That is, the above-mentioned third fiber is relatively hard, but by using this fourth fiber together, it becomes rich in elasticity, and the durability of the brush produced can be improved. In addition, although the above-mentioned effect also has the first fiber and the second fiber which are the same material (synthetic resin fiber), these are added to the fourth fiber by the amount of the mixed abrasive grains and carbon powder. The waist (elasticity) is lower than that.

As described above, the mixing ratio of each of the first to third fibers or the fourth fiber is 10 to 70% by weight of the first fiber and 10 to 70% by weight of the second fiber. 5
At 0% by weight, the third fibers are 10 to 50% by weight and the fourth fibers are 10 to 50% by weight. The above mixing ratio is
It can be appropriately set depending on the material (surface hardness) of the material to be treated, application (purpose), and the like.

For example, when polishing a material to be treated having a relatively high surface hardness, the first fiber and the third fiber are set to a high ratio. On the other hand, when polishing a material having a relatively low surface hardness, the second fiber and the fourth fiber are set at a high ratio.

When the material to be treated is rough-finished (roughly-polished), the abrasive grains contained in the first fiber have a large grain size. Alternatively, a third fiber having a large diameter is used. On the other hand, when the material to be treated is subjected to precision finishing (precision polishing), the abrasive grains to be contained in the first fiber are used with a small grain size. Alternatively, a third fiber having a small diameter is used.

The composite fiber obtained by further mixing the first to third fibers or the fourth fiber can be made into various brushes according to the shape of the material to be treated. The manufacturing method is not particularly limited, and may be appropriately focused to form a brush by a known method.

The brush material of the present invention has a surface treatment function such as deburring and a static electricity removing function. Therefore, the brush produced in various sizes and shapes by concentrating the brush material of the present invention can be used for surface treatment such as deburring, polishing, and grinding, and the adverse effect of static electricity remains after the treatment. Never.

[0017]

As described above, the brush material of the present invention can provide a brush having both a surface treatment function such as deburring and a static electricity removing function. Therefore, the brush obtained by focusing the material for a brush of the present invention, in particular, can perform a desired surface treatment on a material to be treated such as a metal product or a stone material, remove static electricity on the surface, and It does not cause various problems as described above.

Further, since the brush material of the present invention is constructed without using a special raw material, it can be easily put into practical use.

Further, in the case where the fourth fiber is mixed, the third fiber is less likely to be broken, so that the durability of the manufactured brush is improved.

Claims (4)

[Claims] 1. A first synthetic resin fiber containing abrasive grains.
Of the first fiber, the second fiber which is a carbon fiber, and the third fiber which is a metal fiber are mixed, wherein the first fiber is 10 to 70% by weight and the second fiber is 10% by weight. ~
A material for a brush, which is 50% by weight and 10 to 50% by weight of the third fiber. 2. The first fiber is made of polyamide and has a particle size of # 46.
~ 2000 alumina powder or silicon powder 10
The second fiber is 30 to 50% by weight, and the second fiber is a fiber having a thickness of 0.1 to 0.5 mm in which a carbon layer is formed on the outer peripheral portion of a polyamide core wire, or 30 to 30% of polyamide, polypropylene or polyvinyl chloride. The fiber having a thickness of 0.1 to 0.5 mm mixed with 60% by weight of carbon powder, and the third fiber is one or more of steel fiber, phosphor bronze fiber and brass fiber. Material for brush. 3. A first synthetic resin fiber containing abrasive grains.
Which is a composite fiber in which the second fiber, which is a carbon fiber, the third fiber, which is a metal fiber, and the fourth fiber, which is a synthetic resin fiber containing no abrasive grains, are mixed, 10 to 70% by weight of the second fiber and 10 to 70% by weight of the second fiber.
50% by weight, 10-50% by weight of the third fiber, 4th
The material for the brush is characterized in that the fiber content is 10 to 50% by weight. 4. The first fiber is made of polyamide and has a particle size of # 46.
~ 2000 alumina powder or silicon powder 10
The second fiber is 30 to 50% by weight, and the second fiber is a fiber having a thickness of 0.1 to 0.5 mm in which a carbon layer is formed on the outer peripheral portion of a polyamide core wire, or 30 to 30% of polyamide, polypropylene or polyvinyl chloride. A fiber having a thickness of 0.1 to 0.5 mm mixed with 60% by weight of carbon powder, the third fiber is one or more of steel fiber, phosphor bronze fiber and brass fiber, and the fourth fiber The material for a brush according to claim 3, wherein is a fiber made of polyamide, polypropylene, polyvinyl chloride, or the like and having a thickness of 0.1 to 0.5 mm.