JP2004049653A - Rotating roll brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strong and inexpensive rotating roll brush, suitably diverting a keyed shaft for forming a disk type rotating roll brush to a shaft of a channel type rotating roll brush. <P>SOLUTION: In this rotating roll brush, flanges 12, 13 are integrally fitted in both end openings of a cavity 10' of a coil brush 10 formed of a channel brush 7, the coil brush 10 is externally fitted to a shaft 11 to fit the shaft 11 to the inner peripheral surfaces of the flanges 12, 13 at both ends, and a projection key 11a of the shaft 11 is key-connected to a recess key 16 formed in the inner peripheral edges of both end flanges 12, 13. A bar 17 is extended between both end flanges 12, 13, the inner surface 17a of the bar 17 is superposed and supported on the projection key 11a of the shaft 11, and an intermediate flange 20 fitted between both end flanges 12, 13 of the coil brush 10 is supported on the outer surface 11b of the bar 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rotation that is preferably performed when a channel-type coil roll brush is extrapolated to a shaft of a disk-type rotary roll brush for removing slag or polishing the surface of a rolled steel plate or the like to convert to a channel-type rotary roll brush. Roll brush.
[0002]
[Prior art]
The disk-type rotary roll brush is formed by implanting a brush material on an outer peripheral edge of a disk to form a disk brush, providing a concave key on an inner peripheral edge of a shaft insertion hole provided in a central portion of the disk, A plurality of disc brushes are externally formed on the shaft while fitting and key-connecting a ridge key extending in the axial direction of the shaft.
[0003]
Alternatively, a convex key is provided on the inner peripheral edge of the shaft insertion hole provided at the center of the disk, and the convex key is fitted to a groove key extending in the axial direction of the shaft and key-coupled, and a number of disk brushes are removed from the shaft. It is inserted and formed.
[0004]
The used disc-shaped rotating roll brush whose brush material has been worn is carried into the brush maker from a rolling maker or the like, and the brush maker extrapolates a new disc brush to the shaft with a key and supplies it to the rolling maker or the like. . This situation is the same for the channel type rotary roll brush.
[0005]
However, the above-mentioned disk-type rotary roll brush is extremely expensive, and there is a demand for conversion to an inexpensive channel brush.However, the disk-type rotary roll brush forms a brush roll having a predetermined diameter according to the diameter of the disk. However, when a channel brush is wound around the rotating shaft of the disk-type rotating roll brush, there is a problem that a predetermined diameter cannot be secured.
[0006]
On the other hand, conventionally, a channel brush formed by holding a base portion of a brush material in a channel is spirally wound in close contact and a gap between the channels is welded to form a coil brush, and plate-like ends are formed at both ends of a cavity formed by the channel of the coil brush. Of the flange is provided integrally with the channel, a recessed key is provided on the inner peripheral edge of the flange, and one or more coil brushes are extrapolated to the shaft to fit the shaft on the inner peripheral surfaces of the one end flange and the other end flange. 2. Description of the Related Art A rotary roll brush is known in which a projection key extending in the axial direction of the shaft is fitted and key-coupled to the recessed keys of both flanges.
[0007]
According to the rotary roll brush using the coil brush, it is possible to form a roll brush having the same diameter as the disk-type roll brush by the one end flange and the other end flange.
[0008]
[Problems to be solved by the invention]
However, the rotating roll brush is subjected to a polishing operation or the like under a high-speed continuous operation, and a strong impact is applied regularly, but the channel type coil brush has a structure in which both ends of the coil brush are supported by a pair of plate-like flanges at both ends. However, since the flange is not supported by the shaft between the flanges, there is a problem that the rotation and deflection of the coil brush occur during the rotary polishing work, thereby causing uneven polishing and a brush mark, and the solution thereof is a problem. ing.
[0009]
[Means for Solving the Problems]
According to a first aspect of the present invention, the coil brush is externally inserted into a shaft, the shaft is fitted to the inner peripheral surfaces of the one end flange and the other end flange, and the coil brush is formed on the inner peripheral edge of both flanges. A cavity between the one end flange and the other end flange formed by the channel of the coil brush when a ridge key extending in the axial direction of the shaft is fitted to the recessed key and keyed to form a rotary roll brush. A structure in which an intermediate flange is integrally fitted inside the channel, the inner surface of the bar is supported by the ridge key of the shaft, and the inner peripheral surface of the intermediate flange is supported by the outer surface of the bar. It is what it was.
[0010]
As a second means, a bar extending in parallel with the ridge key is provided between the one end flange and the other end flange, and the inner surface of the bar is supported by the ridge key of the shaft in an overlapping manner. The configuration is such that the channel of the coil brush is supported on the surface.
[0011]
As a third means, the above-mentioned coil brush is externally inserted into a shaft, the shaft is fitted to the inner peripheral surfaces of the one end flange and the other end flange, and a convex key formed on the inner peripheral edge of both flanges is provided in the axial direction of the shaft. When the rotary roll brush is formed by fitting and keying the groove keys extending to the same, an intermediate flange is integrally formed with the channel in the cavity between the one end flange and the other end flange formed by the channel of the coil brush. The bar is fitted into the groove key of the shaft and keyed together, and the inner peripheral surface of the intermediate flange is supported by the outer surface of the bar.
[0012]
Further, as a fourth means, a bar extending in parallel with the groove key is provided between the one end flange and the other end flange, and the bar is fitted to the groove key of the shaft and key-coupled, and the bar is attached to the outer surface of the bar. Thus, the channel of the coil brush is supported.
[0013]
According to the present invention, both ends of the coil brush are supported on the shaft by the one end flange and the other end flange, and between the two flanges, the channel or the intermediate flange of the coil brush is supported by the bar and supported on the shaft via the bar. By doing so, it is possible to eliminate the rotational blurring and bending of the coil brush during the rotational polishing operation, thereby effectively solving the problem of uneven polishing and generation of brush marks. In addition, the diameter of the channel-type roll brush can be appropriately secured by the flanges at both ends and the bar.
[0014]
When the wooden bar is washed with the rotating roll brush, the wooden bar absorbs the washing water and expands to strengthen the key connection. When the wooden bar dries, it shrinks and the wooden bar and the coil brush can be easily removed from the shaft.
[0015]
According to the present invention, an expensive keyed shaft for forming a disk-type rotary roll brush can be appropriately diverted as a shaft of a channel-type rotary roll brush, and a robust and inexpensive rotary roll brush can be provided. .
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIG. 1, a bent base of a two-fold brush material 3 is inserted into a channel groove 2 formed by a bottom plate 1a and left and right side plates 1b and 1c of a channel 1 in the bent base. The right and left claw pieces 5, 6 projecting from the upper edge of one of the left and right side plates 1b, 1c and the upper edge of the other side plate are bent into the channel groove 2 while being implanted together with the core material 4. The channel brush 7 is pressed and held by the left and right side plates 1b and 1c while the bent base portion of the brush member 3 is pressed and held by the left and right side plates 1b and 1c while preventing the core member 4 from coming out by being bent into the V-shaped core member 4. Form.
[0017]
Alternatively, the above-mentioned strip is replaced with a core material obtained by folding it into a V shape, the core wire is inserted into the inside of the bent base of the brush material, and the bent base is pressed and clamped together with the core wire by the left and right side plates to form the channel brush 7. I do. These channel brushes 7 are all known.
[0018]
Further, a continuous portion of the bottom plate 1a and the left and right side plates 1b, 1c in the channel 1 is folded downward to form a stand 8 in which the folded pieces overlap each other and extend in parallel in the longitudinal direction of the channel 1.
[0019]
The above-mentioned channel brush 7 is spirally wound in close contact, and the gap between the channels is welded between the stands 8 to form a coil brush 10. Reference numeral 9 denotes this weld.
[0020]
As shown in FIGS. 2, 5, 7, and 10, the flange 12 is integrally formed with the channel 1 in the opening at one end and the opening at the other end of the cavity 10 ′ formed by the channel 1 of the coil brush 10. 13 is fitted inside.
[0021]
As shown in FIG. 3, FIG. 6, FIG. 8, and FIG. 11, a plurality of protruding pieces 14 are punched out from the outer peripheral edge of the one end flange 12 and the other end flange 13 at intervals in the circumferential direction. The pieces 14 are bent outward at right angles, and each projection 14 is welded to the stand 8 at the bottom of the channel 1, and the flanges 12, 13 are mounted in both ends of the opening of the coil brush 10.
[0022]
As shown in FIGS. 3 and 6, the one end flange 12 and the other end flange 13 have a shaft insertion hole 15 defined by the inner peripheral surfaces of the flanges 12 and 13 at the center, and the inner peripheral edge of the shaft insertion hole 15. Then, a pair of recessed keys 16 are punched and formed on the diameter lines of the flanges 12 and 13.
[0023]
Alternatively, as shown in FIGS. 8 and 11, a pair of convex keys 19 are punched and formed on the inner peripheral edge of the shaft insertion hole 15 on the diameter line of the flanges 12 and 13.
[0024]
As shown in FIGS. 2 and 5, the shaft 11 for extrapolating the coil brush 10 has a ridge key 11a extending in the axial direction of the shaft.
[0025]
Alternatively, as shown in FIGS. 7 and 10, the shaft 11 has a groove key 11b extending in the axial direction.
[0026]
The shaft 11 is a shaft obtained by removing a worn disc brush from a used disc type rotary roll brush carried in from a rolling maker or the like to a brush maker, and is diverted to a channel type coil brush.
[0027]
FIGS. 2 to 4 show that the coil brush 10 is externally inserted into a shaft 11 and the shaft 11 is fitted to the inner peripheral surfaces of the one end flange 12 and the other end flange 13. When the protruding key 11 a extending in the axial direction of the shaft 11 is fitted to the formed recessed key 16 and key-joined to form a rotating roll brush, the protruding rib is provided between the one end flange 12 and the other end flange 13. A bar 17 extending in parallel with the key 16 is provided, and an intermediate flange 20 is integrally fitted with the channel 1 in the cavity 10 ′ formed between the one end flange 12 and the other end flange 13 formed by the channel 1 of the coil brush 10. The inner surface 17a of the bar 17 is supported on the upper surface of the ridge key 11a of the shaft 11 by being overlapped, and the intermediate surface is formed on the outer surface 11b of the bar 11. Shows a rotary roll brush where the structure for supporting the inner peripheral surface 20a of the Nji 20.
[0028]
More specifically, one or a plurality of intermediate flanges 20 are coaxially fitted with the two flanges 12, 13 in a cavity 10 'formed between the one end flange 12 and the other end flange 13 formed by the channel 1 of the coil brush 10. I do.
[0029]
As shown in FIGS. 4A and 4B, the intermediate flange 20 has a shaft insertion hole 15 defined on the inner peripheral surface of the flange, and a plurality of projecting pieces 14 are circumferentially spaced from the outer peripheral edge of the flange 20. Each projection 14 is bent outward at right angles, and each projection 14 is welded to the stand 8 at the bottom of the channel 1, and the flange 20 is mounted in the cavity 10 ′ of the coil brush 10.
[0030]
A bar 17 is provided between the one end flange 12 and the other end flange 13 of the coil brush 10 so as to extend in parallel with the ridge key 11a of the shaft 11.
[0031]
One or a plurality of the coil brushes 10 are extrapolated to the shaft 11, and the ridged keys 11 a of the shaft 11 are fitted and key-coupled to the recessed keys 16 of the one end flange 12 and the other end flange 13 of the coil brush 10, Both the shaft 11 and the coil brush 10 can be integrally rotated.
[0032]
By extrapolation of the coil brush 10, the inner surface 17a of the bar 17 is overlapped and supported by the ridge key 11a of the shaft 11, and the inner surface 20a of the intermediate flange 20 is supported by the outer surface 17b of the bar 17. The intermediate flange 20 supports an intermediate extending portion between the two flanges 12 and 13 of the coil brush 10, and supports the shaft 11 via the intermediate flange 20. Both ends of the coil brush 10 provided on the shaft 11 are tightened and compressed by a known fastening flange.
[0033]
As described above, while supporting both ends of the coil brush 10 on the shaft 11 with one end flange 12 and the other end flange 13, the intermediate flange 20 between the two flanges 12 and 13 is supported by the bar 17 and supported on the shaft 11. This effectively eliminates rotational blurring and bending of the carp brush 10 during rotational polishing work and the like, thereby solving the problem of uneven polishing and generation of brush marks.
[0034]
Next, FIGS. 5, 6A and 6B show that a bar 17 is provided between the one end flange 12 and the other end flange 13 so as to extend in parallel with the ridge key 11a, and the inner surface 17a of the bar 17 is connected to the ridge of the shaft 11. A rotary roll brush is shown, which is supported on the key 11a over its entire length and directly supports the channel 1 of the coil brush 10 on the outer surface 17b of the bar 17.
[0035]
More specifically, a bar 17 extending in parallel with the ridge key 11a of the shaft 11 is provided between the one end flange 12 and the other end flange 13 in the same manner as described above. Of the projection key 11a.
[0036]
On the other hand, the bar 17 is formed so as to be bulky in contact with the stand 8 at the bottom of the channel 1, and the stand 8 of the coil brush 10 is supported on the outer surface 17 b over the extending length of the bar 17 to support the channel 1. Both ends of the coil brush 10 provided on the shaft 11 are tightened and compressed by a known fastening flange.
[0037]
The support of the channel 1 by the bar 17 eliminates rotational blurring and bending of the coil brush at the time of rotary polishing work, thereby effectively solving the problem of uneven polishing and the generation of brush marks.
[0038]
Next, FIGS. 7 to 9 show that the coil brush 10 is externally inserted into the shaft 11 and the shaft 11 is fitted to the inner peripheral surfaces of the one end flange 12 and the other end flange 13. When the convex key 19 formed on the peripheral edge is fitted into the groove key 11b extending in the axial direction of the shaft 11 and key-coupled to form a rotary roll brush, the one end flange formed by the channel 1 of the coil brush 10 An intermediate flange 20 is integrally fitted with the channel 1 in a cavity 10 ′ between the flange 12 and the other end flange 13, and the bar 17 is fitted into the groove key 11 b of the shaft 11 and keyed together. 2 shows a rotary roll brush for supporting the inner peripheral surface 20a of the intermediate flange 20 on the outer surface 17b of the roller.
[0039]
More specifically, as shown in FIGS. 8A and 8B, the one end flange 12 and the other end flange 13 have a shaft insertion hole 15 defined by the inner peripheral surfaces of the flanges 12 and 13 in the center. A pair of convex keys 19 are stamped and formed on the diameter line of the flanges 12 and 13 on the periphery.
[0040]
An intermediate flange 20 is fitted inside a cavity 10 ′ formed between the one end flange 12 and the other end flange 13 formed by the channel 1 of the coil brush 10 and coaxially with the two flanges 12 and 13.
[0041]
As shown in FIGS. 9A and 9B, the configuration of the intermediate flange 20 is as described with reference to FIGS. A bar 17 is provided between the one end flange 12 and the other end flange 13 of the coil brush 10 so as to extend in parallel with the groove key 11b of the shaft 11.
[0042]
The above-mentioned single or plural coil brushes 10 are extrapolated to the shaft 11, and the convex keys 19 of the one end flange 12 and the other end flange 13 of the coil brush 10 are fitted to the groove keys 11 b of the shaft 11 and key-coupled to each other. And the coil brush 10 are integrally rotatable.
[0043]
By extrapolation of the coil brush 10, the inner surface side of the bar 17 is fitted into the groove key 11b of the shaft 11, and the inner surface 17a of the bar 17 is supported on the key groove bottom surface and keyed. At the same time, the outer peripheral surface 17b of the bar 17 supports the inner peripheral surface 20a of the intermediate flange 20, and the intermediate flange 20 supports the extending portion between the two flanges 12, 13 of the coil brush 10. Both ends of the coil brush 10 provided on the shaft 11 are tightened and compressed by a known fastening flange.
[0044]
By supporting both ends of the coil brush 10 with the one end flange 12 and the other end flange 13 as described above, and supporting the space between the two flanges 12 and 13 with the intermediate flange 20 and the bar 17, the coil brush 10 during the rotation polishing operation is formed. This effectively eliminates rotational shake and deflection, thereby solving the problem of uneven polishing and brush marks.
[0045]
Next, FIGS. 10 and 11 show that a bar 17 is provided between the one end flange 12 and the other end flange 13 so as to extend in parallel with the groove key 11b. In addition, a rotary roll brush for supporting the channel 1 of the coil brush 10 on the outer surface 17b of the bar 17 is shown.
[0046]
More specifically, the inner surface of the bar 17 extending over the extending length of the bar 17 is fitted into the groove key 11b of the shaft 11 and key-coupled, and the inner surface 17a of the bar 17 is supported on the bottom surface of the groove key 11b.
[0047]
On the other hand, the bar 17 is made bulky in contact with the stand 8 at the bottom of the channel 1, and the stand 8 of the coil brush 10 is supported by the outer surface 17 b over the extending length of the bar 17 to support the channel 1. Both ends of the coil brush 10 provided on the shaft 11 are tightened and compressed by a known fastening flange.
[0048]
As described above, while the both ends of the coil brush 10 are supported on the shaft by the one end flange 12 and the other end flange 13, the channel 1 between the two flanges 12 and 13 is supported by the bar 17 and supported by the shaft 11 so that the rotary polishing is performed. This effectively eliminates rotational blurring and bending of the carp brush 10 during operation, thereby solving problems of uneven polishing and generation of brush marks.
[0049]
The bar 17 in each of the above embodiments is attached by, for example, bolting from the outer surfaces of both end flanges 12 and 13 while abutting both end surfaces of the bar 17 against the inner surfaces of both end flanges 12 and 13. Alternatively, they are attached to both end flanges 12 and 13 via an adhesive. Alternatively, both end surfaces of the bar 17 abut freely on the inner surfaces of the flanges 12 and 13. Alternatively, the bar 17 is made of metal and welded to the stand 8 of the channel 1 by welding.
[0050]
As a preferred example, the bar 17 in each of the above embodiments is a solid and elongated wooden bar.
[0051]
The wooden bar 17 expands by absorbing the washing water at the time of washing, and is tightly fitted between the ridge key 11 a of the shaft 11 and the intermediate flange 20. Further, when dried, it contracts and the wooden bar 17 and the coil brush 10 can be easily removed from the shaft 11.
[0052]
As an example in which the bar 17 is made of metal, as shown in FIG. 12, a bar 17 formed by bending a sheet metal, for example, a rectangular cylindrical metal bar 17 is formed. It overlaps with the key 11a or is fitted on the groove key 11b and overlaps with the inner bottom surface of the groove key. The metal bar 17 can be attached to each of the flanges 12 and 13 or the stand 8 by welding.
[0053]
In each of the embodiments described above, the case where the shaft of the disk-type roll brush is diverted as the shaft of the channel-type roll brush has been described. However, the present invention relates to the case where the coil brush is attached to a shaft having an outer diameter smaller than the inner diameter of the coil brush. The present invention can be implemented when the roll brush is configured by being inserted, and is not limited to the above-described diversion implementation.
[0054]
【The invention's effect】
According to the present invention, both ends of the coil brush are supported on the shaft by one end flange and the other end flange, and the channel or the intermediate flange of the coil brush is supported by the bar between the two flanges, and the shaft is connected to the shaft via the bar. By supporting, the rotation blur and the bending of the coil brush during the rotation polishing operation or the like can be eliminated, thereby effectively solving the problems of uneven polishing and generation of brush marks.
[0055]
In addition, the diameter of the channel-type roll brush can be appropriately secured by the flanges at both ends and the bar.
[0056]
In addition, an expensive keyed shaft for forming a disk-type rotary roll brush can be appropriately diverted as a shaft of a channel-type rotary roll brush, and a roll brush can be used by using a shaft having a smaller diameter than the inner diameter of a coil brush. It is possible to provide a robust and inexpensive channel-type rotary roll brush that can be appropriately implemented when configuring.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a cross section of an example of a channel brush forming a coil brush.
FIG. 2 is a cross-sectional view of the rotary roll brush showing the first embodiment.
FIG. 3A is an enlarged sectional view of a main part of the rotary roll brush viewed from one end flange or the other end flange side, and FIG. 3B is a sectional view showing a relationship between both end flanges and a shaft in A.
FIG. 4A is an enlarged cross-sectional view of a main part of the rotary roll brush as viewed from the intermediate flange side, and FIG. 4B is a cross-sectional view showing the relationship between the intermediate flange and the shaft in FIG.
FIG. 5 is a sectional view of a rotary roll brush showing a second embodiment.
FIG. 6 is an enlarged cross-sectional view of a main part of a section between flanges at both ends of the rotating roll brush.
FIG. 7 is a sectional view of a rotary roll brush showing a third embodiment.
FIG. 8A is an enlarged cross-sectional view of a main part of the rotary roll brush viewed from one end flange or the other end flange side, and FIG. 8B is a cross-sectional view showing a relationship between the both end flanges and the shaft in A.
9A is an enlarged cross-sectional view of a main part of the rotary roll brush as viewed from the intermediate flange side, and FIG. 9B is a cross-sectional view showing a relationship between the intermediate flange and the shaft in A.
FIG. 10 is a sectional view of a rotary roll brush showing another example of the fourth embodiment.
FIG. 11 is an enlarged sectional view of a main part, which is sectioned between flanges at both ends of the rotating roll brush.
FIG. 12 is an essential part perspective view showing the bar according to the embodiment in a cutaway manner;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Channel, 1a ... Channel bottom plate, 1b, 1c ... Channel left and right side plate, 2 ... Channel groove, 3 ... Brush material, 4 ... V-shaped core material, 5, 6 ... Left and right nail pieces, 7 ... Channel brush, 8 ... Stand, 9 ... Welded part, 10 ... Coil brush, 10 '... Cavity, 11 ... Shaft, 11a ... Protrusion key, 11b ... Groove key, 12 ... One end flange, 13 ... Other end flange, 14 ... Protrusion piece, 15 ... Shaft insertion hole, 16 ... Recessed key, 17 ... Bar, 17a ... Bar inner surface, 17b ... Bar outer surface, 19 ... Convex key, 20 ... Intermediate flange, 20a ... Intermediate flange inner peripheral surface

Claims (5)

A channel brush formed by holding the base of the brush material in the channel is spirally wound in close contact and the gap between the channels is welded to form a coil brush. The coil brush is formed at one end opening and the other end opening of the cavity formed by the channel of the coil brush. A flange is fitted inside the channel integrally, a recessed key is provided on the inner peripheral edge of the flange, and the coil brush is inserted outside the shaft to fit the shaft on the inner peripheral surface of the one end flange and the other end flange. In a rotary roll brush formed by fitting and key-connecting a ridge key extending in the axial direction of the shaft to the recessed keys of both flanges, a bar extending parallel to the ridge key between the one end flange and the other end flange. And an intermediate flange in the cavity between the one end flange and the other end flange formed by the channel of the coil brush. And the inner surface of the bar is overlapped with the ridge key of the shaft, and the inner peripheral surface of the intermediate flange is supported by the outer surface of the bar. Rotating roll brush. A channel brush formed by holding the base of the brush material in the channel is spirally wound in close contact, and the gap between the channels is welded to form a coil brush. The coil brush is formed at one end opening and the other end opening of the cavity formed by the channel of the coil brush. The flange is fitted inside the channel integrally, a concave key is provided on the inner peripheral edge of the flange, and the coil brush is externally inserted into the shaft to fit the shaft on the inner peripheral surface of the one end flange and the other end flange. In a rotary roll brush formed by fitting and key-connecting a projection key extending in the axial direction of the shaft to the recessed keys of both flanges, a bar extending in parallel with the projection key between the one end flange and the other end flange. And the inner surface of the bar is overlapped with the ridge key of the shaft, and the channel of the coil brush is supported on the outer surface of the bar. Rotary roll brush, characterized in that the configuration and the that. A channel brush formed by holding the base of the brush material in the channel is spirally wound in close contact and the gap between the channels is welded to form a coil brush. The coil brush is formed at one end opening and the other end opening of the cavity formed by the channel of the coil brush. A flange is fitted inside the same channel integrally, a convex key is provided on the inner peripheral edge of the flange, the coil brush is inserted outside the shaft, and the shaft is fitted on the inner peripheral surfaces of the one end flange and the other end flange. In a rotary roll brush formed by fitting and keying the convex key of the flange to a groove key extending in the axial direction of the shaft, a bar extending parallel to the groove key is provided between the one end flange and the other end flange. An intermediate flange is provided in the cavity between the one end flange and the other end flange formed by the channel of the coil brush. A rotating roll, wherein the rotating bar is fitted inside the body, and the bar is fitted to the groove key of the shaft and keyed, and the inner peripheral surface of the intermediate flange is supported by the outer surface of the bar. brush. A channel brush formed by holding the base of the brush material in the channel is spirally wound in close contact and the gap between the channels is welded to form a coil brush. The coil brush is formed at one end opening and the other end opening of the cavity formed by the channel of the coil brush. A flange is fitted inside the same channel integrally, a convex key is provided on the inner peripheral edge of the flange, the coil brush is inserted outside the shaft, and the shaft is fitted on the inner peripheral surfaces of the one end flange and the other end flange. In the rotary roll brush formed by fitting the key of the flange to the groove key extending in the axial direction of the shaft and key-joining, a bar extending parallel to the groove key is provided between the one end flange and the other end flange. The bar is fitted into the groove key of the shaft and keyed, and the channel of the coil brush is supported on the outer surface of the bar. Rotary roll brush, characterized in that. 5. The rotary roll brush according to claim 1, wherein said bar is made of wood.

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