JPH0588333U - brush - Google Patents

Abstract

(57) [Summary] [Purpose] While it is strong and wear resistant, it has soft hair. [Constitution] At least one kind of Fe and Mg is 0.02 to 3% by weight, and at least one kind of P and B is 0.0.
High strength copper alloy wire 30 to 80 containing 06 to 1% by weight and In to 0.01 to 0.5% by weight, and the balance being substantially copper.
It is composed of μmφ fiber. The bunch of bristles 1 and the required length are put into the cylinder 3, and the fastening ring 3b is screwed into the collet portion 3a at the tip thereof to form a brush P. The high-strength copper alloy wire has excellent wear resistance and bending resistance, does not easily bend or wear, has a hardness much lower than that of steel, and does not damage the cleaning surface. The ground wire t is inserted into the bundle of hairs 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a brush, and more particularly, to a brush capable of reliably removing dust, decomposition residues, oxides, and compounds attached to the surface of an article without damaging the surface.

[0002]

[Prior Art]

 When synthetic resin moldings are produced using injection molding machines or extrusion molding machines, if decomposition residues, dust, oxides, polymers, etc. adhere to or accumulate inside these machines or on the molding surface of the mold. , The normal operation of the machine is hindered and a good molded product cannot be obtained. In the case of an injection-molding die that finishes the surface to a satin finish, resin decomposition residue accumulates on the die surface corresponding to that surface, and a good molded product cannot be obtained, so the die is cleaned at regular intervals.

In this case, a brush is usually used, but if a brush with weak bristles such as animal bristles and resin bristles is used, it is not possible to easily remove deposits clinging to it with oil or the like. On the other hand, if a brush with strong bristles such as steel wire is used, the deposit will be removed smoothly, but the hardness of the steel wire may damage the deposit surface. In particular, if the resin path of the injection molding die or the extrusion molding machine is damaged, the operation will be impaired.

[0006] Furthermore, copper and brass wires are conceivable as a material for bristles that have a certain degree of waist strength and are not damaged, but these bristles are easily worn and the hips are easily broken. It will bend and become unusable in the short term.

[0005]

[Problems to be solved by the device]

 In view of the above-mentioned circumstances, the present invention aims to make the hair soft at the waist, hard to wear, and soft.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, in this invention, the bristles are made of the following copper alloy wires A or B.

Note (A) contains at least one of Fe and Mg of 0.02 to 3% by weight, at least one of P and B of 0.006 to 1% by weight and 0.01 to 0.5% by weight of In. , A high-strength copper alloy wire whose balance consists essentially of copper.

(B) Fe, Mg and P are contained, the contents of which are: Fe: 0.02 to 3% by weight, Mg: 0.02% by weight to 3% by weight, P: Fe content In contrast, the strength of the copper alloy wire is 25 to 80% by weight and 70 to 90% by weight with respect to the Mg content, and the balance is copper (see Japanese Patent Publication Nos. 62-12295 and 62-39214). .

The diameter of each of the copper alloy wires may be appropriately selected according to the purpose of use of the brush. However, considering that each wire is thin, but it is stiff, the diameter is 100 μm or less, The effects described below are more exerted.

In addition, it is preferable to attach a ground wire electrically connected to all the hairs.

[0011]

[Action]

 In the brush according to the present invention configured as described above, the copper alloy having the composition A or B forming the bristles has excellent wear resistance and bending resistance as described in Japanese Patent Publication No. 62-12295. For example, in the fatigue characteristics, under the condition that the bending strain is 0.306%, the number of bending and breaking of the wire made of the copper alloy is 1610,000 times, whereas that of the pure copper wire is about 43,000 times and about 4 minutes. 1 and the bending strain of 0.22%, the copper alloy wire: 31.5 million times or more, the pure copper wire: about 1193,000 times, about 1/260 or less, and the bending strain of 0.18%. The copper alloy wire is 62 million times or more, and the pure copper wire is about 218,000 times, which is less than 1/280.

Therefore, the bristle brush made of copper alloy, which is excellent in abrasion resistance and bending resistance, does not easily break and does not become easily usable due to abrasion. Also, because it is a copper alloy, it has a much lower hardness than steel, and there is no risk of scratching the removed surface.

In the case where the ground wire is attached, static electricity generated by friction between the cleaning surface and the bristles is released through the ground wire.

[0014]

【Example】

 The copper alloy wire A was used to form fibers of 80, 50, 40, and 30 μmφ, and the brush P shown in FIGS.

In FIG. 1, a bundle of bristles 1 made of the above fibers is planted on a base material 2 by a known means.

In FIGS. 2 and 3, about 1500 bristles 1 are bundled, and the bristles are fitted on the base materials 2 and 3 in a brush shape. The base material 3 has a tubular shape and a tip is a collet chuck 3a. A bundle of bristles 1 is put into the chuck 3a, and a fastening ring 3b is fitted and tightened. To support. If the tip of the bristles 1 is worn out, this can be used by pulling out the bristles 1 from the base material 3 and adjusting the length to the required length, and then fastening them again. The bundle of bristles 1 may be fixed at the rear end (right end in the figure) with an adhesive or fastened with a string or the like.

FIG. 4 shows a scrambled tortoise shape.

In FIG. 5, for example, 1500 copper fibers 1 having a length of 1 m are bundled, a heat-shrinkable Tetron pipe 4 is put on the bundle, and the pipe 4 is heat-shrinked. (Fig. 5 (c)) and cut to the required length. That is, as shown in FIG. 2B, the fiber shown in FIG. 2C is cut into a required length, and the pipe 4 on the left side is removed from the chain line to remove the fiber 1 as shown in FIG. Expose. If the fiber 1 is worn, the tips are aligned and the pipe 4 on the left side from the chain line is removed for a required length.

The shape of the brush P and the mode of the bristles 1 are not limited to those shown in the figure, and it is needless to say that a conventionally known one may be appropriately selected in consideration of the use place.

According to each of the above-mentioned examples, when the matte surface of the injection molding die and the resin passage of the extrusion molding machine were cleaned, the decomposition residue of the resin stuck to the surface, the polymer, etc. were easily and cleanly removed. I was able to do it, and it was not scratched.

When the brush P of each example was manufactured in the same manner using the above copper alloy wire B, the same effect was obtained.

Since the bristles 1 of the brush P according to the present invention are made of metal, it is preferable to provide a ground wire t electrically connected to all the bristles 1 as shown in each drawing. For example, in the case shown in FIG. 1, the metal plate b is interposed in the hair-implanted portion 2a, and the hair 1 is brought into contact with this metal plate b for hair-implantation. This means is advantageous because when the base material 2 is a resin, the interposition of the plate b and the bristling of the hairs 1 can be performed at the same time during the molding.

2, FIG. 3, FIG. 4, and FIG. 5 (a), the ground wire t may be inserted into the bundle of hairs 1. At this time, it is preferable that the insertion end is made of a needle-shaped material having a little elasticity, and the insertion may be performed only by the ground wire t itself (including the needle). The connector structure shown is preferable. That is, the connector 5 in which the ground wire t and the needle 6 are embedded and resin-molded is fitted to the ends of the base materials 2 and 3 and the pipe 4 of FIGS. 2, 3 and 5 (a), and the needle 6 is attached. Insert at the end of the bundle of hair 1. If the connection is not enough by fitting, the tightening ring 7 is appropriately provided. The ground wire t and the needle 6 are securely connected by crimping or soldering. In addition, as shown in FIGS. 1, 2, 3, and 5 (a), if the base materials (pipes) 2, 3, and 4 are electrically conductive, the base materials 2, 3, and 4 are grounded. It is also possible to connect the line t. The ground wire t is led out from an appropriate place on the substrates 2, 3, 4.

[0024]

[Effect of the device]

 This device is constructed as described above, and because it is strong and hard to wear, and the hair is made of soft copper wire, it is possible to remove sticky deposits smoothly without causing scratches on the deposit surface. You can

If the ground wire is provided, static electricity due to friction is removed, and the trouble due to the static electricity is eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a perspective view of another embodiment.

FIG. 3 is a perspective view of another embodiment.

FIG. 4 is a perspective view of another embodiment.

FIG. 5 is a production explanatory view of another embodiment.

FIG. 6 is a sectional view of an example of a ground wire connection.

[Explanation of symbols]

 P brush 1 bristles 2 and 3 base material 4 pipe t ground wire

Claims (3)

[Scope of utility model registration request] 1. A brush whose bristles are made of the following copper alloy wire. At least one of Fe and Mg 0.02 to 3% by weight,
0.006 to 1% by weight of at least one of P and B and I
A high-strength copper alloy wire containing 0.01 to 0.5% by weight of n and the balance substantially consisting of copper. 2. A brush whose bristles are made of the following copper alloy wire. Contains Fe, Mg and P, and the content is Fe: 0.0
2-3% by weight, Mg: 0.02% by weight and more than 3% by weight
Up to 25: 80% by weight of P: Fe content + Mg
A high-strength copper alloy wire whose content is 70 to 90% by weight and the balance is copper. 3. The brush according to claim 1, further comprising a ground wire electrically connected to all the bristles.