JPH08229832A - Rotary brush - Google Patents

Abstract

PURPOSE: To provide a rotary brush of high hair material planting density, high brush bend strength in rotation grinding, and high brush strength in a vertical direction. CONSTITUTION: A rotary brush comprises hair material 6 for brushing a work, and a base plate 5 having an installation part 2 to be installed on a rotary machine, and a recessed part 34 in which the hair material 6 is planted. In the recessed part 34 of the base plate 5, a porous plate 7 provided with a number of holes 70 is fixed on the base plate 5, and the hair material 6 is planted on the porous plate 7. Adhesive 8 is then filled in an upper part 81 and a lower part 82 to close lower end parts of the hair material 6 and the holes 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary brush for brushing with a bristle material.

[0002]

2. Description of the Related Art For example, there is a method of using a rotating brush as a means for removing burrs generated in a metal cut portion.
A conventional rotary brush used for such work is shown in FIG.
As shown in FIG. 5, there are rotating brushes 91 in which several types of channel brushes 960 that have been formed in a ring shape are prepared in advance, and these are arranged concentrically adjacent to each other and welded and fixed to the substrate 951.

In the channel brush 960, as shown in FIG. 11, a wire 961 is sandwiched, and a bristle material 962 folded in two around the wire 961 is inserted into a channel 963 having a U-shaped cross section, and then the channel is inserted. The bristle material 962 is fixed by caulking the upper part 964 of 963 inward. The ring-shaped channel brush 960
Is formed by bending a linear channel brush laterally into a circle.

Further, as shown in FIG. 12, as another rotary brush 92, a small-diameter cylindrical brush 970 is used as a substrate 952.
There are many planted above. The small diameter cylindrical brush 9
Reference numeral 70 includes a bristle material 972 and a cylindrical pipe 971. The bristle material 972 is inserted into the cylindrical pipe 971, and then the upper portion of the cylindrical pipe 971 is caulked inward to fix the bristle material 972. I made it. A large number of small-diameter cylindrical brushes 970 are welded to the substrate 952 and the partition walls 980 and fixed on the substrate 952.

[0005]

However, the above conventional rotary brush has the following problems. That is, in the former rotary brush (FIG. 11) in which the ring-shaped channel brush is arranged, the implantation density of the bristle material 962 is limited to be low due to the thickness of the side wall of the channel 963.

Further, also in the latter rotary brush (FIG. 12) in which a large number of the small diameter cylindrical brushes 970 are planted, the planting density of the bristle material 972 is limited by the cylindrical pipe 971. Therefore, the conventional rotary brush has a low bending strength during rotary grinding.

In addition, in use, when a pressing force in a direction perpendicular to the brush, that is, when a pressing force is applied to the bristle in the axial direction, a problem such as bending or breaking of the bristle occurs. The vertical strength of the brush is weak.

The present invention has been made in view of the above-mentioned conventional problems. It has a high bristle planting density, a high bending strength of the brush during rotary grinding, and a high vertical strength of the brush. It is intended to provide a brush.

[0009]

The present invention provides a rotary brush comprising a bristle material for brushing a material to be treated, a substrate having a mounting portion for mounting on a rotating machine, and a recess for implanting the bristle material. In the recess of the substrate, a porous plate having a large number of holes is fixed on the substrate, the bristle material is planted on the porous plate, and the upper and lower parts of the porous plate are provided. Is a rotary brush characterized by being filled with an adhesive so as to fill the lower end of the bristle and the hole of the porous plate.

What is most noticeable in the present invention is that the porous plate is fixed on the substrate in the concave portion of the substrate. The upper and lower parts of the perforated plate are filled with an adhesive so as to fill the lower end part of the hair material and the holes of the perforated plate.

The mounting portion is constructed so that it can be connected to a rotating shaft connected to a rotating machine such as an electric motor by bolting or the like. The bristles include steel wires such as piano wires, synthetic fibers such as nylon, synthetic fibers containing abrasives, etc., and the optimum material is selected according to the application. Further, as the above-mentioned adhesive, synthetic resin such as epoxy type or acrylic type or rubber type is used.

The recess has an inner cylinder and an outer cylinder,
Further, it is preferable that a perforated plate having a large number of holes is fixed on the substrate between the outer cylinder and the inner cylinder, and the hair material is planted on the perforated plate. This makes it possible to easily provide the recess near the outer periphery of the substrate.

Further, it is preferable that the perforated plate is a corrugated plate, and a valley portion of the corrugated plate is bonded to the substrate.
As a result, the perforated plate can be reliably fixed to the substrate, and a space for filling the upper and lower parts of the perforated plate with the adhesive can be sufficiently secured.

The porous plate is preferably made of metal or plastic. This allows the porous plate to be easily joined to the substrate. This joining is performed by spot welding, soldering, brazing, adhesive or the like. Further, as the perforated plate, not only a plate material such as a steel plate having a hole formed therein, but also a plate formed by enclosing a thin metal wire. For example, there are metal laths, wire laths, armored wire mesh, woven wire mesh, punched wire mesh, expanded metal, punching metal, and the like.

Further, it is preferable that the inner wall of the tip end opening of the recess for implanting the hair material is inclined toward the hair material. Here, the inclination of the inner wall may be entirely inclined, or only the tip portion may be inclined. As a result, the implantation strength of the bristle material is improved, and it is possible to prevent the bristle material from coming off from the recess.

[0016]

In the rotary brush of the present invention, the bristle material is arranged in the concave portion of the substrate, and the lower end portion thereof is fixed to the porous plate by the adhesive. Therefore, the channel and the like for holding the periphery of the bristle material, which is shown in the conventional example, is unnecessary, and more bristle material can be planted accordingly. Therefore, the bristle planting density is increased, and the bending strength of the brush during rotary grinding is also increased.

Between the inner cylinder and the outer cylinder, the porous plate is fixed on the substrate, and the bristle material is arranged on the porous plate. The upper and lower portions of the porous plate are filled with an adhesive so as to fill the lower end portion of the bristle material and the holes. Therefore, the adhesive is solidified integrally with the upper and lower parts of the perforated plate.

Therefore, the adhesive strength between the adhesive and the substrate becomes very high, not only due to the adhesive strength at the adhesive surface between the two, but also due to the tensile strength of the adhesive itself. That is, the perforated plate is fixed to the substrate. Therefore, the adhesive that is continuously solidified in the upper and lower parts thereof does not separate from the substrate unless the connection between the upper and lower parts of the porous plate is broken. On the other hand, the hair material is integrally fixed to the adhesive above the perforated plate. Therefore, the planting strength of the bristle material is sufficiently high.

The bristle material is planted in the upper part of the perforated plate or through the perforated plate to the lower part thereof. Therefore, when a pressing force in the vertical direction is applied to the brush, the porous plate and the adhesive layer below the porous plate exert an elastic effect, and alleviate the impact due to the pressing force. Therefore,
The vertical strength of the brush is higher than that of a conventional rotating brush.

Therefore, according to the present invention, it is possible to provide a rotary brush having a high bristle implantation density, a high bending strength of the brush during rotary grinding, and a high vertical strength of the brush.

[0021]

【Example】

Example 1 A rotary brush according to an example of the present invention will be described with reference to FIGS.
Will be explained. As shown in FIGS. 1 and 2, the rotary brush 10 of the present example comprises a substrate 5 having a mounting portion 2 for mounting on a rotating machine, a recess 34, and a bristle material 6 planted in the recess 34.

As shown in FIGS. 1 and 3, in the concave portion 34, a perforated plate 7 having a large number of holes 70 is fixed on the substrate 5, and on the perforated plate 7, the hair material 6 is provided. Planted. In addition, as shown in FIGS. 1 and 3, the lower end portion 6 of the bristle material 6 is provided on the upper portion 81 and the lower portion 82 of the porous plate 7.
9 and the large number of holes 70 are filled with the adhesive 8.

As shown in FIG. 3, the perforated plate 7 is made of a flat plate punching net having a thickness of 0.8 mm, and the tip portion 74 is welded to the outer wall portion 54 of the recess 34, It is fixed on the substrate 5. The aperture ratio of the holes 70 provided in the porous plate 7 was selected to be about 70%.

As the bristle material 6, as shown in FIG. 3, a large number of corrugated steel wires having a diameter of 0.3 mm and bent in a wavy shape were used. The length of the bristle material 6 is about 50 times, which is more than twice the height 18 mm of the outer wall portion 54 in the recess 34.
mm. The diameter of the substrate 5 is about 107 mm.

An epoxy resin adhesive was used as the adhesive. In addition, the mounting portion 2 is shown in FIG.
As shown in FIG. 3, it is formed into a threaded nut shape, and is configured to be screwed into a rotating shaft connected to a rotating machine (not shown).

Further, in manufacturing the rotary brush 10, there is, for example, the following method. First, the porous plate 7 is fixed to the substrate 5 in the concave portion 34 by welding or the like while ensuring a space for filling the adhesive 8 in the upper portion 81 and the lower portion 82 of the porous plate 7. Next, an appropriate amount of the liquid adhesive 8 is injected into the upper part 81 and the lower part 82 of the porous plate 7. Then,
The bristles 6 having a predetermined length are bundled and inserted along the inner wall 59 of the opening of the tip of the recess 34, and are planted in the recess 34 with a high density.

Next, a flat plate is brought into contact with the upper part of the bundle of hair materials 6 and is hit with a hammer or the like to push the hair materials 6 further into the recesses 34. Along with this, the adhesive 8 sufficiently enters between the hair materials 6 and is filled up to the vicinity of the upper end of the outer wall portion 54 of the recess 34. Then, the hair material 6 abuts on the upper surface of the perforated plate 7, or a part thereof penetrates through the hole 70 of the perforated plate 7 and is sufficiently pushed deep into the recess 34. When the adhesive 8 is solidified, the rotating brush 10
Is completed.

Next, the function and effect of this example will be described. In the rotary brush 10 of this example, the bristle material 6 is disposed in the concave portion 34, and the lower end portion 69 thereof is fixed to the porous plate 7 with the adhesive 8. Therefore, the channel or the like for holding the periphery of the bristle material 6 shown in the conventional example is unnecessary, and more bristle material 6 can be planted accordingly. Therefore, the planting density of the bristle material 6 becomes high, and the bending strength of the brush during rotary grinding also becomes high.

In the recess 34, the porous plate 7 is fixed on the substrate 5, and the bristle material 6 is arranged on the porous plate 7. The upper portion 81 and the lower portion 82 of the porous plate 7 are filled with the adhesive 8 so as to fill the lower end portion 69 of the bristle material 6 and the hole 70. Therefore, the adhesive 8
The upper part 81 and the lower part 82 of the perforated plate 7 are connected and solidified integrally.

Therefore, the adhesive strength between the adhesive 8 and the substrate 5 is extremely high, not only due to the adhesive strength at the adhesive surface between the two, but also due to the tensile strength of the adhesive itself. That is, the porous plate 7 is fixed to the substrate 5. Therefore, the upper part 81
And the adhesive 8 that is solidified integrally with the lower part 82,
The adhesive 8 on the upper portion 81 does not separate from the substrate 5 unless the connection between the upper portion 81 and the lower portion 82 of the porous plate 7 is broken. On the other hand, the hair material 6 is integrally fixed to the adhesive 8 on the upper portion 81 of the porous plate 7. Therefore, hair material 6
The planting strength will be sufficiently high.

The bristle material 6 is the upper portion 81 of the porous plate 7.
Has been planted in. Therefore, when a vertical pressing force is applied to the brush, the porous plate 7 and the layer of the adhesive 81 below the porous plate 7 exert an elastic body effect to mitigate the impact due to the pressing force. Therefore, the vertical strength of the brush is higher than that of the conventional rotating brush.

Therefore, according to the present example, it is possible to obtain a rotary brush having a high density of bristle implants, a high bending strength of the brush during rotary grinding, and a high vertical strength of the brush.
In this example, the inner wall 59 of the tip opening of the recess 34 is not inclined, but it may be inclined toward the bristle 6. As a result, the implantation strength of the bristle material 6 is further improved, and it is possible to prevent the bristle material 6 from coming off from the recess 34.

Example 2 In this example, as shown in FIG. 4, instead of the perforated plate 7 made of the punching net in Example 1, a perforated plate 720 made of a corrugated expanded metal having a large number of holes 730.
It was used. This perforated plate 720, as shown in FIG.
The wave troughs 725 are welded and fixed to the substrate 5. Others are the same as in the first embodiment. In addition, the same reference numerals are used for portions having substantially the same functions as those in the first embodiment (hereinafter, the same applies to other embodiments).

In this example, the fixation of the substrate 5 and the perforated plate 720 is further strengthened, so that the implantation strength of the bristle material can be further improved. In addition, also in this example,
The same effect as in the first embodiment can be obtained. Also in this example, the inner wall 59 of the opening of the tip of the recess 34 can be inclined toward the bristle 6 to prevent the bristle 6 from coming off.

Embodiment 3 In the rotating brush 13 of this embodiment, as shown in FIGS. 5 and 6, the recess 34 in the substrate 5 of Embodiment 1 is formed by the cylinder 3 and the outer cylinder 4. And the outer cylinder 4 and the inner cylinder 3
In between, the porous plate 70 was fixed on the substrate 5, and the hair material 6 was planted on the porous plate 70.
Others are the same as in the first embodiment.

In this example, the bristle material 6 is planted in the recess 34 formed by the inner cylinder 3 and the outer cylinder 4. The bristle material 6 is not planted in the central portion of the substrate 5. That is, when the rotary brush 13 is rotated, the bristle material 6 is planted only on the outer peripheral portion of which the rotation speed is relatively high. Therefore, the required amount of the bristle material 6 can be reduced without lowering the grinding effect, and the cost can be reduced. In addition, the same effect as that of the first embodiment can be obtained.

Also in this embodiment, the inner wall of the tip opening of the recess 34, that is, the outer peripheral side 39 of the tip of the inner cylinder 3 and the inner peripheral side 49 of the tip of the outer cylinder 4 are directed toward the bristle material 6. The hair 6 can be prevented from coming off by inclining to.

Fourth Embodiment As shown in FIGS. 7 and 8, the rotary brush 14 of this embodiment divides the inner cylinder 3 and the outer cylinder 4 of the rotary brush 13 of the third embodiment into three equal parts in the radial direction. An inner partition wall 431 and an outer partition wall 432 are arranged at the boundary. Then, the inner cylinder 3 and the inner partition wall 431
The hardest bristle material 61 is planted between the outer partition wall 431 and the outer partition wall 432, and the bristle material 62 having an intermediate hardness is planted between the inner partition wall 431 and the outer partition wall 432. The softest bristle material 63 was planted.

Further, all of these bristle materials 61 to 63 are corrugated steel materials having a diameter of 0.3 mm, and only the hardness is changed.
Further, between the partition walls, a porous plate 7 made of a punching metal net is fixed and an adhesive 8 is filled, as in the first embodiment. Others are the same as in the third embodiment.

In the rotary brush 14 of this example, the hardness of the bristle material differs in the radial direction of the rotary brush, and the bristle material becomes softer toward the outer circumference. Therefore, variations in the grinding ability of the rotating brush in the radial direction are reduced. That is, normally
When the rotary brush is rotated, the grinding ability is high near the outer circumference where the rotation speed is highest, and is low near the inner circumference.

However, in this example, as described above, the bristle material 63 near the outer circumference is made the softest and the bristle material 6 near the inner circumference is formed.
1 is the hardest. Therefore, the variation in the grinding ability due to the speed difference is corrected by the hardness of the bristle material. Therefore, in this example, it is possible to reduce variations in the grinding ability of the rotary brush in the radial direction. Other,
The same effect as that of the third embodiment can be obtained.

Embodiment 5 The rotating brush 15 of this embodiment is similar to that of Embodiment 4 as shown in FIG.
The high foundation table 51 and the middle foundation table 52 are arranged between the inner cylinder 3 and the inner partition wall 431 and between the inner partition wall 431 and the outer partition wall 432 of the rotating brush 14, respectively. That is, the height of the substrate 5 is increased toward the inner circumference.

Then, as shown in FIG. 9, the shortest bristles 64 are planted between the inner cylinder 3 and the inner partition wall 431, and an intermediate length between the inner partition wall 431 and the outer partition wall 432. Hair material 65
And the longest bristle material 66 is planted between the outer partition wall 432 and the outer cylinder 4, and the tip surface (brush surface) of the bristle material as a whole.
Prepared.

The filling amount of the adhesive 8 between the partition walls was the same. That is, the free length of the bristle materials 64 to 66 protruding from the upper surface of the adhesive 8 is
It was configured to be proportional to the length of ~ 66. In addition, hair material 6
4 to 66 are the same except for the length, and the diameter is 0.3 mm.
The corrugated steel wire having the same hardness as the above was used. Others are Example 4
Is the same as

In this example, the free lengths of the bristle materials 64 to 66 are different as described above. Therefore, the rigidity of the bristle material is lower as it is closer to the outer circumference, and the rigidity of the bristle material is higher as it is closer to the inner circumference. Therefore, similarly to the fourth embodiment, it is possible to reduce the variation in the grinding ability of the rotary brush in the radial direction. In addition, the same effect as that of the third embodiment can be obtained.

Embodiment 6 As shown in FIG. 10, the rotary brush 16 of the present embodiment is arranged in the circumferential direction above the porous plate 7 between the inner cylinder 3 and the outer cylinder 4 of the rotary brush 13 of the third embodiment. A partition wall 340 is divided into eight equal parts. Others are the same as in the third embodiment.

In this embodiment, the partition wall 340 receives the stress in the rotating direction generated when the rotating brush is rotated. Therefore, the stress applied to the adhesive agent that fixes the hair material is relieved. Therefore, according to this example, the implantation strength of the bristle material and the bending strength of the brush during rotary grinding can be further improved. In addition, the same effect as that of the third embodiment can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a rotating brush according to a first embodiment.

FIG. 2 is a plan view of the rotary brush according to the first embodiment before a bristle material is implanted.

FIG. 3 is an explanatory diagram of a state in which a bristle material is planted in the rotary brush according to the first embodiment.

FIG. 4 is an explanatory diagram of a state in which a bristle material is planted in the rotating brush according to the second embodiment.

FIG. 5 is a vertical sectional view of a rotating brush according to a third embodiment.

FIG. 6 is a plan view of the rotary brush of Example 3 before the bristle material is implanted.

FIG. 7 is a plan view of a rotating brush according to a fourth embodiment.

FIG. 8 is an explanatory diagram of a state in which a bristle material is planted in the rotating brush according to the fourth embodiment.

FIG. 9 is an explanatory diagram of a state in which a bristle material is planted in the rotating brush according to the fifth embodiment.

FIG. 10 is a plan view of a rotating brush according to a sixth embodiment.

FIG. 11 is an explanatory diagram of a state in which a bristle material is planted in the conventional rotating brush.

FIG. 12 is an explanatory view of a state in which a bristle is planted in a rotary brush of another conventional example.

[Explanation of symbols]

 10. ． ． Rotating brush, 2. ． ． Mounting part, 3. ． ． Inner cylinder, 4. ． ． Outer cylinder, 34. ． ． Recess, 5. ． ． Substrate, 6. ． ． Hair material, 7. ． ． Perforated plate, 8. ． ． adhesive,

Claims (5)

[Claims] 1. A rotary brush comprising a bristle material for brushing a material to be treated, a substrate having a mounting portion for mounting on a rotating machine, and a recess for implanting the bristle material.
In the recess of the substrate, a porous plate having a large number of holes is fixed on the substrate, the bristle material is planted on the porous plate, and the upper and lower parts of the porous plate are provided. Is
A rotary brush characterized by being filled with an adhesive so as to fill the lower end of the bristle and the hole of the porous plate. 2. The perforated plate according to claim 1, wherein the recess has an inner cylinder and an outer cylinder, and a plurality of holes are provided between the outer cylinder and the inner cylinder on the substrate. A rotating brush, characterized in that it is fixed and the bristles are planted on the perforated plate. 3. The rotary brush according to claim 1, wherein the perforated plate is a corrugated plate, and the troughs of the corrugated plate are bonded to the substrate. 4. The method according to claim 1, wherein
The rotating brush, wherein the perforated plate is made of metal or plastic. 5. The method according to any one of claims 1 to 4,
The rotating brush, wherein the inner wall of the tip end opening of the concave portion for implanting the bristle material is inclined toward the bristle material.