JP7054538B2 - Brush roll - Google Patents

Description

The present invention relates to a brush roll used for brushing (cleaning, polishing, grinding, etc.) of a strip-shaped metal plate (hereinafter referred to as "strip") such as a steel plate or a copper plate, and in particular, a technique for processing a brass disc for the brush roll. And a method of laminating brush discs in a brush roll.

As a brush roll of this type, a brush disk in which a large number of brush hair materials are planted on the outer peripheral edge is mounted on a metal roll shaft in a state where a plurality of brush discs are vertically stacked (for example, patent documents). See 1). Multiple brush discs are attached to the roll shaft by inserting the roll shaft into the central opening, but key members protruding from multiple locations on the outer peripheral surface of the roll shaft are located at multiple locations on the inner peripheral surface of the brush disc. By entering the formed concave keyway, a plurality of brush discs are connected to the roll shaft and can rotate integrally with the roll shaft.

The inner diameter of the brush disc is the outer diameter of the roll shaft so that a gap G1 is formed between the inner peripheral surface of the brush disc and the outer peripheral surface of the roll shaft so that the roll shaft can be easily inserted into the opening. It is set slightly larger than. Further, the dimensions of the key groove of the brush disk are set so that a gap G2 is formed between the inner surface of the key groove and the outer surface of the key member to be inserted into the key groove.

Japanese Unexamined Patent Publication No. 9-309061

However, if a gap G1 and a gap G2 exist between the brush disc and the roll shaft, as shown in FIG. 7, when the brush roll 101 is pressed against the strip 100 or the like while rotating, the brush disc 103 and the roll shaft are pressed against the strip 100 or the like. A core deviation occurs between the 102 and the 102. As a result, the brush disk 103 and the roll shaft 102, as well as the key groove 104 and the key member 105, rub against each other, causing problems such as damage to the roll shaft 102, the brush disk 103, and the key member 105, and abnormal vibration of the roll shaft 102.

On the other hand, if the gap G1 and / or the gap G2 is eliminated, the above-mentioned problem can be solved, but it takes a lot of time and effort to mount hundreds of brush discs on the roll shaft in a laminated state, and the brush roll is manufactured. Becomes difficult or impossible.

The present invention has been made by paying attention to the above-mentioned problems, and an object of the present invention is to provide a brush roll that can suppress core shake between a brush disc and a roll shaft and can be manufactured reasonably. ..

The present invention relates to a brush roll for brushing, for example, strips. The brush roll of the present invention has a plurality of brush discs provided with a plurality of brush bristle materials on the outer peripheral edge and the plurality of brush discs are inserted with a gap between the openings of the plurality of brush discs. A roll shaft mounted with brush discs stacked in the axial direction, and a plurality of keys protruding from the outer peripheral surface of the roll shaft and inserted into concave key grooves formed on the inner peripheral surfaces of the plurality of brush discs. The plurality of brush discs include a member and a pair of flanges for sandwiching the plurality of brush discs from both sides, and the plurality of brush discs have the key grooves formed so that the key members can enter with a gap. The first brush disk and the second brush disk in which the key groove is formed so that the key member can be inserted without a gap and the number of the second brush disk is smaller than that of the first brush disk are included, and the second brush disk is at predetermined intervals. It is characterized in that it is sandwiched between the plurality of first brush discs.

In the brush roll of the present invention, preferably, the plurality of brush discs include the plurality of the second brush discs, and the second brush discs are sandwiched between the plurality of first brush discs. The predetermined spacing may be configured to be shorter on the axial center side of the roll shaft than on the pair of flange sides. In the brush roll, more preferably, the predetermined interval is an interval of 8 or more and 15 or less in terms of the number of the first brush disks on the pair of flange sides, and on the axial center side of the roll shaft. The number of first brush discs can be configured to be 2 or more and 4 or less, and more preferably, the length between the pair of flanges of the roll shaft is L. The flange side can be configured to have a length range of L / 10 or more and L / 3 or less from each flange, and the axial center side of the roll shaft can be configured to have the remaining range.

Further, in the brush roll of the present invention, preferably, the key member is a member separate from the roll shaft, and a concave fitting in which a part of the key member is fitted on the outer peripheral surface of the roll shaft. It can be configured so that a groove is formed.

According to the brush roll of the present invention, of the plurality of brush discs mounted on the roll shaft, a small number of the second brush discs have the key member inserted into the keyway without a gap and are fitted to the roll shaft. It is fixed in a state where the center position is aligned, and even if the brush roll is pressed against a strip or the like while rotating, it is possible to prevent core deviation from occurring between the second brush disc and the roll shaft. On the other hand, among the plurality of brush discs, a large number of the first brush discs are sandwiched between the pair of flanges and the second brush discs, or between the two second brush discs, so that they are rolled. Even if the center position is maintained in a state of being aligned with the shaft and the brush roll is pressed against a strip or the like while rotating, it is possible to suppress the occurrence of misalignment between the first brush disc and the roll shaft. Therefore, it is possible to prevent the brush disc and roll shaft, as well as the key groove and key member from rubbing against each other when the brush roll is rotated, to damage the roll shaft, brush disc, and key member, and to prevent the roll shaft from vibrating abnormally. can do.

In addition, since the key member of a large number of first brush discs is inserted into the keyway with a gap, the roll shaft can be easily inserted into the opening and can be easily attached to the roll shaft. Therefore, the brush roll can be manufactured without difficulty.

It is a front view which shows the schematic structure of the brush roll of this embodiment. (A) is a cross-sectional view taken along the line AA of FIG. 1, and (B) is an enlarged cross-sectional view of a main part. (A) is a cross-sectional view taken along the line BB of FIG. 1, and (B) is an enlarged cross-sectional view of a main part. It is a front view which shows the schematic structure of a roll shaft. It is a front view which shows the schematic structure of a brush disk. It is a schematic diagram which shows the relationship between a brush disk and a roll shaft when the brush roll of this embodiment is rotated. It is a schematic diagram which shows the relationship between a brush disk and a roll shaft when the brush roll of a conventional example is rotated.

Hereinafter, the actual form of the present invention will be described with reference to the accompanying drawings. The brush roll of the present invention is characterized by a technique for processing a brush disc for a brush roll and a method for laminating the brush disc in the brush roll.

FIG. 1 shows a schematic configuration of a brush roll 1 according to an embodiment of the present invention. The brush roll 1 includes a plurality of brush discs 4 and a roll shaft 2 equipped with a plurality of brush discs 4, and is a strip of an iron plate, a steel plate, an aluminum plate, a copper plate, etc., or temper rolling of the strip. It is used for brushing (cleaning, polishing, grinding, etc.) rolls and their backup rolls.

The brush roll 1 further includes a key member 7 (shown in FIGS. 2 and 3) and a pair of flanges 3, and a plurality of brush discs 4 are vertically stacked on the roll shaft 2 via the key member 7. It is installed so that it can rotate integrally in the state. Then, by compressing and tightening the plurality of brush discs 4 stacked in the axial direction from both sides with a pair of flanges 3, the plurality of brush discs 4 are sandwiched and integrated by the pair of flanges 3. ..

As shown in FIGS. 1 to 4, the roll shaft 2 is made of, for example, a metal or an alloy, and acts when a material generally used for the roll shaft, that is, a brush roll 1, such as steel or high carbon steel, is used. It can be formed of a material having rigidity (strength) that is not easily deformed by bending caused by an alternating load. The outer peripheral surface of the roll shaft 2 may be coated with an epoxy resin paint, a urethane resin paint, or the like in order to improve its corrosion resistance.

In the roll shaft 2, the substantially cylindrical central portion 21 having a large outer diameter is a portion on which a plurality of brush discs 4 are mounted, and the portions 22 at both ends in the axial direction of the substantially cylindrical column having a small outer diameter are brushed. This is the part set in the bearing of the device (not shown). A plurality of concave fitting grooves 20 extending along the axial direction are formed on the outer peripheral surface of the roll shaft 2 at intervals (preferably equal intervals) in the circumferential direction. In the present embodiment, the two fitting grooves 20 are formed at positions opposite to the outer peripheral surface of the roll shaft 2. A part of the key member 7 (a portion protruding from the key groove 40 of the disc brush 4) is fitted in the fitting groove 20. The fitting groove 20 has a shape corresponding to the outer shape of the part of the key member 7, and has a rectangular shape in a cross-sectional view in the present embodiment.

In addition to the above-described configuration, the roll shaft 2 can appropriately adopt various configurations and shape changes necessary for suitable use as the brush roll 1.

In the roll shaft 2, the fitting groove 20 is directly formed on the outer peripheral surface of the roll shaft 2, and although not shown, the roll shaft 2 is axially oriented on the outer peripheral surface of the roll shaft 2 as in the technique described in Japanese Patent No. 6203438. A concave mounting groove extending along the above is formed, and a key base made of a corrosion-resistant metal material, a corrosion-resistant alloy material, or a corrosion-resistant resin material is attached to the mounting groove by using screws, bolts, or the like, and the width of the key base 22. It may be configured to form a fitting groove 20 extending along the axial direction in the center of the direction. "Corrosion resistance" is a property that is hard to corrode (rust) and hard to oxidize. Examples of the corrosion-resistant metal material include titanium, nickel, aluminum, and chromium, and examples of the corrosion-resistant alloy material include stainless steel, titanium alloy, nickel alloy, aluminum alloy, and chromium alloy. Examples of the corrosion-resistant resin material include plastics such as polypropylene, polyvinyl chloride, polyethylene, fluororesin, and polyamide, and fiber reinforced plastics (FRP). As a result, the fitting groove 20 of the roll shaft 2 can be prevented from corroding and changing its shape with the use of the brush roll 1, and as a result, the connection between the brush disk 4 and the roll shaft 2 is maintained. Although the details will be described later, the brush disk 4 can maintain the state in which the center position is aligned with the roll shaft 2 for a long period of time.

As shown in FIGS. 2, 3 and 5, the brush disk 4 is formed by densely providing a plurality of brush hair materials 5 on the outer peripheral edge of the annular disk body 6. A large number of brush bristles are passed through a hole (not shown) formed in the outer peripheral edge of the disc body 6, bent into a U shape, and then the bent base is tightened with a metal wire or the like. The material 5 is fixed to the outer peripheral edge of the disk body 6.

The brush bristle material 5 has a diameter of 0.02 mm or more and 7 mm or less, and is a monofilament or abrasive grain made of a synthetic resin such as nylon, polyester (for example, polyethylene terephthalate, polybutylene terephthalate, etc.), polyolefin (for example, polypropylene, etc.). The above-mentioned monofilament made of synthetic resin containing (for example, alumina, silica, etc.) and having a diameter of 0.02 mm or more and 7 mm or less can be exemplified. In addition, a plurality of ultrafine multifilaments made of synthetic resin such as nylon, polyester, and polyolefin are spirally wound or braided around the peripheral surface of a core yarn in which a plurality of relatively thin monofilaments are bundled, in addition to the tip of the core yarn. After combining, those hardened with an adhesive made of synthetic resin can be preferably exemplified. In this brush bristles, the roots are thickened by bundling a plurality of monofilaments, while the tips are in a state where the bundles of a plurality of thin monofilaments are unwound, so that the tips of the bristles are thinned. As a result, the strength of the brush bristles 5 can be ensured because the root is thick, and the fine stains on the surface of the strip or the like can be removed because the bristles are thin.

The disk body 6 is formed by opening a circular opening 60 in the center of a disk-shaped iron plate having a predetermined thickness. The inner diameter of the disc body 6 is set to be slightly larger than the outer diameter of the central portion in the axial direction of the roll shaft 2 in order to insert the roll shaft 2 into the opening 60. Therefore, there is a gap S1 between the inner peripheral surface of the disk body 6 and the outer peripheral surface of the roll shaft 2. The gap S1 may be, for example, about 0.1 mm or more and 1.0 mm or less when the inner diameter of the disc is Φ70 to Φ300, and about 0.5 mm when the inner diameter of the disc is Φ230.5, although it depends on the inner diameter of the brush disc 4. ..

On the inner peripheral surface of the disk body 6, a plurality of concave key grooves 61 are spaced apart in the circumferential direction (preferably evenly spaced) so as to correspond to the fitting grooves 20 on the outer peripheral surface of the roll shaft 2 (preferably evenly spaced). In this embodiment, two) are formed. A part of the key member 7 (a portion protruding from the fitting groove 20 of the roll shaft 2) is inserted into the key groove 61. The key groove 61 has a shape corresponding to the outer shape of the part of the key member 7, and has a rectangular shape in a cross-sectional view in the present embodiment. The key members 7 protruding from the plurality of points on the outer peripheral surface of the roll shaft 2 enter the key grooves 61 formed at the plurality of points on the inner peripheral surface of the brush disc 4, so that the plurality of brush discs 4 are connected to the roll shaft 2. It can rotate integrally with the roll shaft 2.

The key member 7 is made of, for example, a metal such as S45C or SUS304, or a fiber reinforced plastic (FRP), and a known member such as that described in JP-A-10-291165 can be adopted. A plurality of key members 7 are fitted into the fitting grooves 20 of the roll shaft 2, and the key members 7 are provided corresponding to a certain number of brush discs 4.

The plurality of brush discs 4 includes a plurality of first brush discs 4A and a smaller number of second brush discs 4B than the first brush discs. The second brush discs 4B are sandwiched between the plurality of first brush discs 4A at predetermined intervals. The first brush disk and the second brush disk 4B have the same thickness, and in FIG. 1, the boundaries of the plurality of first brush disks 4A stacked in a series are not shown, and all of them are shown. It is illustrated in a grouped block.

As shown in FIG. 2, the first brush disk 4A has a key groove 61 formed so that the key member 7 can enter with a gap. That is, in the first brush disk 4A, gaps S2 and S3 are formed between the inner surface of the key groove 61 and the outer surface of the key member 7 inserted into the key groove 61. The gaps S2 and S3 may be about 0.1 mm or more and 5.0 mm or less, for example, about 0.75 mm, and the gap S3 may be about 0. It can be 1 mm or more and 2.0 mm or less, for example, about 0.5 mm. As a result, the first brush disk 4A has gaps S1, S2, and S3 all around the roll shaft 2 so that the roll shaft 2 can be easily inserted into the opening 40. On the other hand, if gaps S1, S2, and S3 exist between the first brush disc 4A and the roll shaft 2 over the entire circumference, the first brush disc 4A is pressed against a strip or the like while rotating the brush roll 1. A core shake occurs between the roll shaft 2 and the roll shaft 2. When the center deviation occurs, the first brush disc 4A and the roll shaft 2, the key groove 61 and the key member 7 rub against each other, the roll shaft 2 and the first brush disc 4A and the key member 7 are damaged, and the roll shaft 2 is abnormal. Problems such as vibration occur. In order to suppress this misalignment, the second brush discs 4B are sandwiched between the plurality of first brush discs 4A at predetermined intervals.

As shown in FIG. 3, the second brush disk 4B has a key groove 61 formed so that the key member 7 can be inserted without a gap. That is, in the second brush disk 4B, a gap is not formed between the inner surface of the key groove 61 and the outer surface of the key member 7 to be inserted into the key groove 61, and the key member 7 fits perfectly into the key groove 61. Is fitted with. As a result, the second brush disk 4B is fixed in a state where the center position is aligned with the roll shaft 2, although a gap S1 is partially present between the second brush disk 4B and the roll shaft 2. Therefore, as shown in FIG. 6, when the brush roll 1 is rotated and pressed against the strip 100 or the like, it is possible to prevent core deviation from occurring between the second brush disk 4B and the roll shaft 2. There is.

Since the second brush disc 4B is sandwiched between the plurality of first brush discs 4A at predetermined intervals, the plurality of first brush discs 4A have the pair of flanges 3 and the second brush disc 4B. It is sandwiched between or between two second brush discs 4B. Therefore, the center positions of the plurality of first brush discs 4A are also maintained in the state of being aligned with the roll shaft 2, and when the brush roll 1 is rotated and pressed against the strip or the like, the first brush discs 4A and the like are maintained. It is possible to suppress the occurrence of core shake as shown in FIG. 7 between the roll shaft 2 and the roll shaft 2.

In the second brush disk 4B, it is preferable that the key member 7 fits tightly into the key groove 61 without a gap, but there may be a slight manufacturing error, and the key member 7 may have a key. The width of the groove 61 is +0.1 mm or less in total on the left and right, and the depth of the key groove 61 is allowed even if there is an error of +0.1 mm or less.

As shown in FIG. 1, the predetermined interval in which the second brush disk 4B is sandwiched between the plurality of first brush disks 4A is not particularly limited, and all are the same interval between the pair of flanges 3. It may be, or it may be partly or wholly at different intervals. However, the first brush disc 4A located on the central side in the axial direction of the roll shaft 2 has a larger center deviation with respect to the roll shaft 2 than the first brush disc 4A located on both end sides in the axial direction (the pair of flanges 3 side), and the roll The longer the length (dimension in the axial direction) of the shaft 2, the greater the tendency. Therefore, in the second brush disc 4B, the predetermined interval sandwiched between the plurality of first brush discs 4A is closer to the center side in the axial direction than both ends in the axial direction (the pair of flanges 3 side) of the roll shaft 3. Is preferably short.

For example, when the length between the pair of flanges 3 of the roll shaft 2 is L, the length is not particularly limited, but both ends of the roll shaft 2 in the axial direction (the pair of flanges 3 sides) are each. The length range from the flange 3 to L / 10 or more and L / 3 or less, preferably the length range of L / 7 or more and L / 5 or less, more preferably the length range of L / 6. The axial center side of the roll shaft 2 described above is the remaining range (a range having a length of L / 3 or more and 8L / 10 or less, preferably 3L / 5 or more and 5L / 7 across the axial center position of the roll shaft 2). Length range, more preferably 4L / 6 length range).

In addition, the predetermined interval described above is not particularly limited, but on both ends in the axial direction (the pair of flanges 3 side) of the roll shaft 2 described above, the number of the first brush disks 4A is 8 or more and 15 sheets. The interval is preferably as follows, and on the axial center side of the roll shaft 2, the interval is preferably 2 or more and 4 or less in terms of the number of first brush disks 4A.

As described above, according to the brush roll 1 of the present embodiment, among the plurality of brush discs 4 mounted on the roll shaft 2, a small number of the second brush discs 4B are fitted with the key member 7 inserted into the keyway 61 without a gap. By fitting, the roll shaft 2 is fixed in a state where the center position is aligned with the roll shaft 2. Therefore, as shown in FIG. 6, even if the brush roll 1 is pressed against the strip 100 or the like while rotating, it is possible to prevent core blurring from occurring between the second brush disk 4B and the roll shaft 2. On the other hand, among the plurality of brush discs 4, a large number of first brush discs 4A are sandwiched between the pair of flanges 3 and the second brush disc 4B, or between the two second brush discs 4B. By doing so, the center position is maintained in the state of being aligned with the roll shaft 2. Therefore, even if the brush roll 1 is rotated and pressed against a strip or the like, it is possible to suppress the occurrence of misalignment between the first brush disc 4A and the roll shaft 2. Therefore, when the brush roll 1 is rotated, the brush discs 4A, 4B and the roll shaft 2, the key groove 61 and the key member 7 rub against each other, and the roll shaft 2, the brush discs 4A, 4B, and the key member 7 are damaged. It is possible to prevent the roll shaft 2 from vibrating abnormally.

In addition, since the key member 7 enters the keyway 61 with a gap in the large number of first brush discs 4A, the roll shaft 2 can be easily inserted into the opening 60 and easily attached to the roll shaft 2. be able to. Therefore, the brush roll 1 can be manufactured without difficulty.

In addition, in the second brush disk 4B, the predetermined interval sandwiched between the plurality of first brush disks 4A is on the axial center side of the roll shaft 3 on both ends in the axial direction (the pair of flanges 3 sides). Is shorter. Therefore, it is possible to effectively suppress the larger misalignment caused by the first brush disk 4A located on the axial center side of the roll shaft 2.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, the key member 7 is composed of a separate member from the roll shaft 2, but the key member 7 may be integrally formed with the roll shaft 2.

1 Brush roll 2 Roll shaft 3 Flange 4 Brush disc 5 Brush bristle material 7 Key member 20 Fitting groove 60 Opening 61 Key groove

Claims (5)

Multiple brush discs with multiple brush bristles on the outer periphery,
A roll shaft mounted with the plurality of brush discs stacked in the axial direction, and the roll shaft inserted into the openings of the plurality of brush discs with a gap in the radial direction of the roll shaft. ,
A plurality of key members protruding from the outer peripheral surface of the roll shaft and inserted into the concave key grooves formed on the inner peripheral surfaces of the plurality of brush disks.
A pair of flanges that sandwich the plurality of brush discs from both ends in the axial direction of the roll shaft, and
Equipped with
The plurality of brush discs are
Multiple first brush discs and
With a smaller number of second brush discs than the first brush disc ,
Including
In the first brush disk, the key groove is formed so that the key member enters the key groove with a gap between the inner surface of the key groove and the outer surface of the key member.
In the second brush disk, the key groove is formed so that the key member enters the key groove without a gap between the inner surface of the key groove and the outer surface of the key member.
The second brush disc is a brush roll that is sandwiched between the plurality of first brush discs at predetermined intervals. The plurality of brush discs include the plurality of the second brush discs.
According to claim 1, the second brush disc is sandwiched between the plurality of first brush discs, and the predetermined interval is shorter on the axial center side of the roll shaft than on the pair of flange sides. The listed brush roll. The predetermined interval is an interval of 8 or more and 15 or less in the number of the first brush disks on the pair of flange sides, and two or more in the axial center side of the roll shaft. The brush roll according to claim 2, which has an interval of 4 or less. Let L be the length between the pair of flanges of the roll shaft.
The brush roll according to claim 2 or 3, wherein the pair of flange sides has a length range of L / 10 or more and L / 3 or less from each flange, and the axial center side of the roll shaft has the remaining range. .. The key member is a member different from the roll shaft, and a concave fitting groove into which a part of the key member is fitted is formed on the outer peripheral surface of the roll shaft. The brush roll described in either.

Images