KR20090039068A - Brush material - Google Patents

Abstract

It is used for polishing and grinding such as polishing the surface of a workpiece or removing burrs, and when used under extreme conditions such as contacting the surface of the workpiece with rotation at high speed or applying a strong pressing force. Even if the burr generated on the surface or the edge portion is hard, it provides a brush material having resistance to wear and durability that can expect burr removal effect or polishing effect.

A fine abrasive powder 13 is mixed on the surface of the resin brush base material 12a formed by mixing the abrasive grains 10 having coarse particles and concentrating a plurality of resin brush hairs 12 having a circular or polygonal cross section. The covering layer 14 was formed.

Description

Brush material {BRUSH MATERIAL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush material that can be used for polishing and grinding to polish a surface of a workpiece or to remove burrs.

Conventionally, as a brush material which can be used for polishing and grinding, such as polishing the surface of a workpiece or removing burrs, for example, a plurality of synthetic fibers containing abrasive particles are used as cores. It is known to use a brush material formed by applying a synthetic fiber multifilament to the surroundings as a covering (see Patent Document 1).

[Patent Document 1] Japanese Patent Laid-Open No. S63 (1988) -318907

However, the brush material formed by covering the thin synthetic fiber multifilament is used for polishing and grinding, such as polishing the surface of the workpiece or removing burrs, and contacting the surface of the workpiece while rotating at high speed or When it is used under severe conditions such as giving a strong pressing force, if the burr generated on the surface or the edge of the workpiece is hard, the burr removal effect or polishing effect cannot be expected, and improvement has been desired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is used for polishing and grinding such as polishing a surface of a workpiece or removing burrs, and making contact with the surface of the workpiece while rotating at high speed or applying a strong pressing force. When used under extreme conditions such as imparting, even if the burr generated on the surface or the edge of the workpiece is hard, it provides a brush material having resistance to wear and durability that can expect burr removal effect or polishing effect. For the purpose of

In order to solve the above problems, the invention described in claim 1 includes a resin film in which fine particles of abrasive powder are mixed on the surface of a resin brush base material, in which abrasive particles having coarse particles are mixed and a plurality of resin brush hairs having a circular or polygonal cross section are focused. It is a brush material formed by forming a covering layer.

In addition, the invention described in claim 2 is the brush material according to claim 1, wherein the covering layer is coated with a resin, a resin film is wound in a spiral shape, or a pipe material of a resin thin film is attached.

The invention according to claim 3 is characterized in that the particle size of the abrasive grains is in the range of F50 to F100, and the particle size of the abrasive grains is in the range of # 2,500 to # 8,000. It is a brush material of 2.

According to the brush material of the present invention, since the brush base material forms a covering layer on the surface of the resin brush base material in which a plurality of brush bristles are focused, it is resistant to abrasion and durability, and is brought into contact with the surface of the workpiece while rotating at high speed. In the case of being used under extreme conditions such as giving a strong pressing force or the like, burrs are generated at the surface or the edge of the workpiece, and even if these burrs are hard, burr removal effect or polishing effect can be expected.

EMBODIMENT OF THE INVENTION Hereinafter, the Example of this invention is described based on drawing. In addition, the same code | symbol in each figure represents the same component part.

Example 1

FIG. 1A is a schematic perspective view of a brush material of Embodiment 1 according to the present invention, and FIG. 1B is an enlarged cross-sectional view taken along line A-A of the brush material of FIG. 1A.

In (a) and (b) of FIG. 1, the brush material 11 is formed into a circular cross section by mixing abrasive grains 10 (one or two or more of alumina, silicon carbide, cerium oxide, diamond) with coarse particles. Four resin brush bristles 12 are concentrated to form a brush base material 12a, and a covering layer 14 made of a resin film containing a fine abrasive 13 mixed with powder on the surface of the brush base material 12a. Formed. The particle diameter and particle size of the abrasive grain 10 having a coarse grain or the abrasive grain 13 have a fine grain are specified in JISR6001 (1998), and the grain size range of the grain abrasive grain 10 is F50 to F100, and the powder has a fine powder. The particle size of the abrasive 13 is in the range of # 2,500 to # 8,000.

Example 2

FIG. 2A is a schematic perspective view of a brush material of Embodiment 2 according to the present invention, and FIG. 2B is an enlarged cross-sectional view taken along line B-B of the brush material of FIG. 2A.

In FIG. 2, the brush material 21 includes four abrasive brush bristles 22 having a triangular cross section formed by incorporating abrasive grains 10 having coarse particles to form a brush base material 22a, and the brush base material ( On the surface of 22a), the covering layer 14 by the resin film which mixed the fine abrasive 13 with powder is formed and formed.

Example 3

Figure 3 (a) is a schematic perspective view showing a brush material of a third embodiment according to the present invention, Figure 3 (b) is an enlarged cross-sectional view along the line C-C of the brush material of Figure 3 (a).

In FIG. 3, the brush material 31 forms a brush base material 32a formed by concentrating four resin brush bristles 32 having a rectangular cross section formed by mixing abrasive grains 10 having coarse particles. On the surface of (32a), the covering layer 14 by the resin film which mixed the fine abrasive 13 with powder is formed and formed.

Example 4

Figure 4 (a) is a schematic perspective view showing a brush material of a fourth embodiment of the present invention, Figure 4 (b) is an enlarged cross-sectional view taken along the line D-D of the brush material of Figure 4 (a).

In FIG. 4, the brush material 41 includes a coarse-grained abrasive 10, a resin bristle 12 having a circular cross section, a resin bristle 22 having a triangular cross section, and a square cross section. The covering layer 14 by the resin film which mixed the fine abrasive 13 with powder was mixed in the surface of the brush base material 42a by which the total of three which each one of the resin brush bristles 32 shape | molded were mixed. It is formed.

Example 5

FIG. 5A is a schematic perspective view of a brush material of a fifth embodiment according to the present invention, and FIG. 5B is an enlarged cross-sectional view taken along line E-E of the brush material of FIG. 5A.

In FIG. 5, the brush material 51 incorporates abrasive grains 10 having coarse particles to form a resin brush hair 52 having a circular cross section and a large diameter and a resin brush hair 53 having a circular cross section and a small diameter. The brush base material 54 is formed by converging a plurality of resin brush bristles 53 (12 in FIG. 5) with a small diameter around the resin brush bristle 52 having a large diameter. It forms by forming the covering layer 14 by the resin film which mixed the fine abrasive 13 with powder on the surface.

Each of the covering layers 14 described above was formed of a resin film in which one or two or more kinds of alumina, silicon carbide, cerium oxide, and diamond were mixed as fine abrasives 13. The proportion of the finely ground abrasive 13 mixed in the resin coating was 1 to 10% by weight of diamond and 90 to 99% by weight of other abrasives.

In addition, each covering layer 14 may mix | blend aromatic powder or deodorant powder with the powder fine abrasive 13. In this way, when the odorous powder or the deodorizing powder is mixed in the fine abrasive, the brush base material 12a can be oriented or deodorizing during polishing of the workpiece.

(A), (b), (c) of FIG. 6 are all resins in which abrasive grains (alumina, silicon carbide, cerium oxide, one kind or two or more kinds) of coarse grains having a particle size range of F50 to F100 are mixed. Brush bristle 12, 22, 32. 6 (a) shows a resin brush bristle 12 having a circular cross section, and FIG. 6 (b) shows a resin brush bristle 22 having a triangular cross section, and FIG. This square resin brush bristle 32 is shown.

7 is a schematic view showing an example of a cross-sectional shape of various resin brush hairs. The resin brush bristles 12, 22, and 32 in the first to fourth embodiments are illustrated in the cross-sectional shape having a circular, triangular, and rectangular (forward direction). In addition, polygons such as hexagons 33 and octagons 34, The oval 35, the cruciform 36, the spectacle type 37 such as a gourd gourd, the four-leaf clover type 38 (or the three-leaf clover type not shown), and the rectangle 39 may be used.

Each of the resin brush bristles 12, 22, and 32 is illustrated with respect to the linear wire rod. In addition, as shown in FIG. 8 (a), the torsion linear brush bristles 22c and (b) of FIG. As shown, the resin brush bristle 22d formed in a fine broken line shape can be used.

In addition, when tying 2 or more of each resin brush bristle 12, 22, 32, and forming a brush base material, you may collect and bundle the several various linear resin brush bristle 12 as it is, and form a brush base material, As shown in Fig. 9, a plurality of (three in Fig. 9) linear resin brush bristles 12 may be twisted in a rope to form a brush base material 60.

In addition, the covering layer 14 may be formed by coating a resin. As shown in FIG. 10 (a), the covering layer 14 may be wound in a spiral to form the covering layer 14a, and FIG. 10 (b). As shown in the figure, the pipe material of the resin thin film may be attached to form the covering layer 14b.

11 (a) to 11 (e) are schematic diagrams showing examples of cross-sectional shapes of other brush materials. The brush materials 11, 21, 31, 41, and 51 in Examples 1 to 5 illustrate the cross-sectional shape of the covering layer 14 being formed in a rounded annular shape. The covering layer of the brush material is illustrated in FIG. As shown in (a), the cross-sectional shape is a square annular shape 61 with round holes, and as shown in (b) of FIG. 11, the cross-sectional shape is a triangular annular 62, as shown in (c) of FIG. This hexagonal annular 63, as shown in Fig. 11D, is formed of various covering layers whose cross-sectional shape is an octagonal annular 64, and the cross-sectional shape is an elliptic annular 65 as shown in Fig. 11E. can do.

This invention is not limited to the said embodiment, It can implement variously in the range which does not change the structure described in the claim. For example, three or four resin brush hairs in the covering layer may be three or four in Examples 1 to 5.

FIG. 1A is a schematic perspective view of Embodiment 1 of the present invention, and FIG. 1B is an enlarged cross-sectional view taken along line A-A of the brush material of FIG. 1A.

(A) is a schematic perspective view which shows Example 2 which concerns on this invention, (b) is an expanded sectional view along the B-B line of the brush raw material of (a).

(A) is a schematic perspective view which shows Example 3 which concerns on this invention, (b) is an expanded sectional view along the C-C line of the brush raw material of (a).

FIG. 4A is a schematic perspective view of Embodiment 4 of the present invention, and FIG. 4B is an enlarged cross-sectional view taken along line D-D of the brush material of FIG.

(A) is a schematic perspective view which shows Example 5 which concerns on this invention, (b) is an expanded sectional view along the E-E line of the brush raw material of (a).

6 (a), 6 (b) and 6 (c) are schematic perspective views showing a resin brush bristles having a cross section used in Examples 1 to 5 according to the present invention in a circular, triangular and square shape.

7 is a schematic view showing an example of a cross-sectional shape of various resin brush hairs.

(A), (b) is a schematic perspective view which shows the other resin brush simulation example.

9 is a schematic perspective view showing another brush base material.

10 (a) and 10 (b) are schematic perspective views showing an example of a covering layer according to the present invention.

11 (a) to 11 (e) are schematic diagrams showing examples of cross-sectional shapes of other brush materials.

Explanation of symbols on the main parts of the drawings

10, 13: abrasive

11, 21, 31, 41, 51: brush material

12, 22, 32, 52, 53: resin brush bristle

12a, 22a, 32a, 42a, 54: brush base material

14, 61 ~ 65: covering layer

22c: torsional resin brush bristles

22d: Resin brush bristles formed in a broken line shape

60: brush base material twisted resin rope twisted in the form of a rope

Claims (3)

A brush material formed by forming a covering layer in which fine powder is mixed on a surface of a resin brush base material formed by mixing a coarse abrasive material and concentrating a plurality of resin brush hairs having a circular or polygonal cross section. The method of claim 1, The covering layer is a brush material formed by coating a resin, winding a resin film in a spiral shape, or mounting a pipe material of a resin thin film. The method according to claim 1 or 2, The particle size of the abrasive grains of the abrasive is F50 ~ F100, the particle size of the fine abrasive powder is a brush material, characterized in that the range of # 2,500 ~ # 8,000.

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