JPH09294632A - Material for brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make this brush optimal for fast rotation on the surface of a large work with a relative hardness, the removal of burrs under severe conditions by a strong pressing force, the grinding of the surface or the removal of static electricity. SOLUTION: A cover layer 4 is formed on the outer circumferential surface of a core material 3 produced by bundling a plurality of wire materials 2. The cover layer comprises a synthetic fiber filament yarn spirally wound thereon or knitted thereon in a braid.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a surface of a hard and large work, such as a large-scale metal work,
The present invention relates to a material for a brush, which is most suitable for surface treatment such as deburring or polishing under harsh conditions caused by ultra-high speed rotation or strong pressing force.

[0002]

2. Description of the Related Art Conventionally, as a brush for polishing a surface of a metal work or treating it for deburring, for example, there is one described in JP-A-63-318907. The conventional brush uses brush bristles formed by using a plurality of synthetic fibers mixed with abrasive grains as a core body and applying a thin multifilament of synthetic fibers as a covering around the core body.

[0003]

However, the above-mentioned conventional brush cannot be used at all when surface-treating a large-scale metal work under severe conditions such as rotation speed and contact pressure. In addition, when the burr generated on the surface or the corner of the work is hard, the deburring effect and the polishing effect under severe conditions cannot be expected. Therefore, the surface of a hard work in a large area,
There is a demand for a brush material that can reliably expect deburring and surface polishing effects even under high speed rotation and high pressing force.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned conventional circumstances, and covers a filament yarn of synthetic fibers on the outer peripheral surface of a core material formed by bundling a plurality of metal wire rods. It is provided with a covering layer made of thread,
The covering layer is characterized in that the covering thread is wound spirally or braided in a braid. Therefore, according to the brush material of the present invention, the core material bundled with the metal wire can reliably polish the surface of the work even under severe conditions, and in particular, the metal wire is gradually polished during polishing. Even if the covering thread of the covering layer is reduced and is frayed, the frayed thread is entangled between the metal wire rods and strongly reinforces the core material. Therefore, not only can the workpiece be processed with high efficiency and reliability under any polishing condition, but also the coating layer on the outer peripheral surface can prevent the core material from being damaged or bent due to elasticity. Even under various polishing conditions, it is remarkably good in processing such as deburring and polishing.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described based on the embodiments of the drawings. A brush material 1 according to the first embodiment of the present invention shown in FIG. The core wire 3 is formed by aligning or bundling about 2 to several hundreds of metal wire rods 2 having a thickness of about 1 mm. The metal wire 2 includes steel wire, phosphor bronze wire,
A brass wire or the like can be used.

On the outer peripheral surface of the core material 3, there is provided a coating layer 4 which is formed by spirally winding or braiding a filament yarn of synthetic fiber as a covering thread.

In FIG. 1, a multifilament formed by twisting an infinite number of monofilaments of, for example, 30 to 100 denier made of polyamide, polypropylene, polyvinyl chloride or the like on the outer peripheral surface of the core material 3 is braided in a braided shape. The form which attached and constituted the coating layer 4 is shown.

However, as shown in FIG. 2, an infinite number of monofilaments of, for example, 30 to 100 denier made of polyamide, polypropylene, polyvinyl chloride or the like are twisted around the outer peripheral surface of the core material 3 shown in FIG. The coating layer 4 may be formed by spirally winding the multifilament formed as described above, or the coating layer 4 may be fixed to the outer peripheral surface of the core material 3 with an adhesive.

FIG. 3 shows another embodiment of the present invention, which is made of steel wire, phosphor bronze wire, brass wire, etc.
About 2 to 10 metal wires 2 having a thickness of about 2 mm are bundled to form a core material 3, and the outer peripheral surface of the core material 3 is made of polyamide, polypropylene, polyvinyl chloride or the like, for example, 30 to 100 denier. 1 shows a brush material 1 in which a coating layer 4 is formed by spirally winding a multifilament formed by twisting an infinite number of monofilaments.

2 and 3 differ from the embodiment shown in FIG. 3 in that the metal wire 2 forming the core material 3 is extremely fine and focuses a large number of wires in contrast to the core material in FIG. The coating layer 4 has the same structure in that the metal wire 2 of 3 is thick and is formed by aligning several wires. In any of the above-described embodiments, the coating layer 4 is the same in that the filament yarn of the synthetic fiber is spirally wound around the outer peripheral surface of the core material 3 in which the metal wires 2 are bundled to form the coating layer 4. is there.

As in the case of FIG. 1, a filament yarn of synthetic fiber is used as a covering thread on the outer peripheral surface of the core 3 formed by bundling several thick metal wires 2 shown in FIG. It is also possible to form the coating layer 4 by attaching it.

The present invention has been described above based on the embodiments shown in the drawings. However, the present invention is not limited to the above-mentioned embodiments, and the configurations described in the claims are not changed. It can be carried out in any way.

[0013]

In summary, according to the present invention, a filament yarn of synthetic fibers is used as a covering thread on the outer peripheral surface of a core material formed by bundling a plurality of metal wires in a spiral shape or in a braided shape. It is characterized in that a covering layer formed by knitting is provided. Therefore, not only can deburring and polishing of the surface of a hard metal work with a core made of a metal wire, but especially since a plurality of metal wires are bundled, the waist becomes strong, It is possible to reliably deal with a fine or complicated shape of the surface in the work of polishing the work. Moreover, since the core material is a metal wire and is conductive, static electricity generated on the surface of the work can be quickly and surely removed as it is. Further, since the coating layer on the outer peripheral surface of the core material is formed by spirally winding or braiding a filament yarn of synthetic fiber as a covering thread, a strong elastic action is generated in the coating layer. It can protect the material and prevent it from being broken or bent, especially for removing static electricity from workpieces used for automobile parts, electric parts, mechanical parts and all other applications, for deburring and polishing the work surface , Can be widely used. Moreover, even if the synthetic fibers of the coating layer are frayed during the surface treatment of the workpiece, the frayed fibers will be entangled and entangled between the metal wire rods of the core material to entangle and reinforce the core material. Can also withstand enough. In addition, since the core material is a metal wire, it is heat resistant and can withstand the frictional heat with the work piece. Therefore, it is possible to provide a brush material having a high practical value, which can be used particularly for polishing and deburring a hard work having a large area.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention.

FIG. 2 is a partial perspective view showing another embodiment of the present invention.

FIG. 3 is a partial perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Material for brush 2 Metal wire 3 Core material 4 Coating layer

Claims (2)

[Claims] 1. A material for a brush, comprising: a core material formed by bundling a plurality of metal wire rods, and an outer peripheral surface of the core material provided with a coating layer using a filament yarn of a synthetic fiber as a covering thread. 2. The material for a brush according to claim 1, wherein the covering layer is formed by winding a covering thread in a spiral shape or knitting in a braid shape.