JP2002035828A - Apparatus for preventing wrinkling generated in metallic strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for preventing wrinkling generated in the metallic strip which can properly prevent wrinkling generated during transportation or winding of the metallic strip by inhibiting bends of the metallic strip in the tensile direction and which can be realized with simple facilities specifications and installation spaces. SOLUTION: The apparatus 1 for preventing wrinkling generated in the metallic strip comprises a pair of flexible members 3 of framework having a softer material than the metallic strip S which sandwich the metallic strip S from ups and downs to be transported, being imparted by a tensile force, and a fastening means 5 to fasten a pair of flexible members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing wrinkles during the production of metal strips, and more particularly to an apparatus for preventing wrinkles from occurring when manufacturing metal strips such as stainless steel strips having a thickness of 0.1 mm or less. About.

[0002]

2. Description of the Related Art Generally, in a facility (for example, a rolling facility) for producing a metal strip, the metal strip is wound while applying tension. Then, during the production of such a metal band, if the tension on the metal band increases, wrinkles may occur in the longitudinal direction of the metal band. Such wrinkles are more likely to occur as the metal band becomes thinner, and become particularly remarkable when the metal band becomes as thin as 0.1 mm or less. When such wrinkles occur, as shown in FIG.
As a result of rolling while wrinkles are generated, the steel sheet 100
7B, or as shown in FIG. 7 (b), an unusual coil having a wrinkle 201 projecting outward as a result of being continuously wound up in a wrinkled state. The result is 200, which leads to a bad reputation for customers.

Therefore, as a wrinkle prevention device for preventing such wrinkles, for example, a device shown in FIG. 8 (see Japanese Patent Application Laid-Open No. 9-174157) has been proposed. In the rolling line shown in FIG. 8, a deflector roll 302 is arranged on the exit side of a rolling mill 301, and the rolled metal strip S is bent obliquely downward by the deflector roll 302, and is then coiled by a take-up reel 303. It is designed to be wound up. A metal strip S is provided between the deflector roll 302 and the take-up reel 303.
Rolls 304 and 305 are pressed at predetermined intervals along the winding direction and press the support frames 341 and 342 from the upper and lower sides. It is connected to each of the pneumatic cylinders 306 and 307 via the air cylinder. In FIG. 8, reference numerals 321 and 331 denote motors,
Reference numerals 22 and 332 denote pulse generators, 308 denotes a ring gear fixed to the pneumatic cylinder 307, 308a is driven by a step motor 309, and a pinion screwed into the ring gear 308, 310 drives the step motor 309 in accordance with an increase in the number of turns. It is a control device to perform.

According to the wrinkle prevention device, the rolling mill 3
01, and immediately after being bent by the deflector roll 302, the wrinkles generated in the metal band S are caused by the frictional force between the wrinkle stretching roll 304 and the metal band S due to the pressing force of the downstream wrinkle stretching roll 304. If the wrinkles are eliminated by preventing the deformation in the width direction, and the wrinkles are generated again thereafter, the wrinkles are removed by the pressing force of the wrinkling rolls 305 located upstream of the take-up reel 303.
The deformation is prevented by preventing the deformation in the metal band width direction by the frictional force between the metal band S and the metal band S, and the metal band S is taken up by the take-up reel 303. In this wrinkle prevention device, in order to improve the wrinkle prevention effect, the pressing force of the wrinkle stretching rolls 304, 305 is increased to increase the frictional force between the wrinkle stretching rolls 304, 305 and the metal band S. You can do it.

[0005]

However, in the conventional wrinkle prevention device shown in FIG. 8, when the wrinkles are eliminated by the pressing force of the wrinkle stretching rolls 304 and 305, the metal band S is stretched. It winds around a part of the circumference of the rolls 304 and 305, and bends the direction in which the metal band S is stretched. In order to improve the effect of preventing wrinkles,
When the pressing force of the wrinkle stretching rolls 304, 305 is increased, the winding angle of the metal band S around the wrinkle stretching rolls 304, 305 is further increased, and the bending in the direction in which the metal band S stretches is further increased. Such a large bending in the stretching direction and the number of times of bending (in this case, the deflector roll 3
When bending is also performed, the total length is 3 times.) When the metal band S is wound up and then unwound and cut into sheets, the cut end is warped and trouble occurs at the customer's point of handling. It may be.

[0006] When the pressing force of the rolls 304 and 305 is increased, the displacement amount in the pressing direction of the rolls must be increased, and the stroke of the pneumatic cylinder changes according to the change in the coil diameter. Pneumatic cylinders 306, 30 for applying roll pressing force
There is a problem that the equipment specifications and the installation space are correspondingly increased by lengthening the equipment specifications of the stroke length of No. 7.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to realize a metal strip which can be realized with small equipment specifications and installation space while suppressing bending in the direction in which the metal strip is stretched. It is an object of the present invention to provide a metal band wrinkle prevention device capable of appropriately preventing wrinkles from occurring during transporting and winding.

[0008]

According to a first aspect of the present invention, there is provided an apparatus for preventing wrinkling of a metal band, wherein the metal band conveyed while being tensioned is sandwiched from above and below. It is characterized by comprising a pair of soft members made of a material softer than the metal band, and fastening means for fastening the pair of soft members.

According to this wrinkle prevention device, the pair of soft members fastened by the fastening means sandwiches the metal belt conveyed while applying tension from above and below, and the metal band is formed by the frictional force of the sandwiching force of the soft members. The deformation in the width direction of the band is restrained, and the generation of wrinkles in the metal band is prevented.
At this time, the metal band is sandwiched between the pair of soft members while being stretched while maintaining the pass line position. Due to its very light weight, the pass line of the metal strip is practically unaltered and the metal strip is virtually not bent by the wrinkle prevention device. Further, each soft member is softer than the metal band and does not damage the metal band due to sliding with the metal band.

According to a second aspect of the present invention, the metal band wrinkle prevention device is disposed between a take-up reel and a deflector roll, and sandwiches the metal band wound by the take-up reel from above and below. And a pair of soft members made of a material softer than the metal band, and fastening means for fastening the pair of soft members. According to the wrinkle prevention device, the pair of soft members fastened by the fastening means sandwich the metal band wound by the take-up reel from above and below, and the width direction of the metal band is caused by the frictional force caused by the sandwiching force of the soft members. Of the metal band is prevented, and the generation of wrinkles in the metal band is prevented. At this time, the metal band is sandwiched between the pair of soft members while being stretched while maintaining the pass line position. Due to its very light weight, the pass line of the metal strip is practically unaltered and the metal strip is virtually not bent by the wrinkle prevention device. Further, each soft member is softer than the metal band and does not damage the metal band due to sliding with the metal band.

[0011] Further, according to a third aspect of the present invention, there is provided an apparatus for preventing wrinkling of a metal strip according to the second aspect.
When the coil diameter changes due to an increase in the number of windings on the take-up reel and the pass line of the metal band changes,
The apparatus is characterized in that it comprises a follower for causing the pair of soft members to follow a change in the pass line of the metal band.

According to this wrinkle prevention device, when the coil diameter changes due to an increase in the number of windings on the take-up reel and the pass line of the metal band changes, the pair of soft members sandwiching the metal band is made of metal. Follow the changes in the band pass line. For this reason, even when the coil diameter changes due to an increase in the number of windings, it is possible to reliably prevent wrinkling of the metal band.

According to a fourth aspect of the present invention, in the apparatus for preventing wrinkles of a metal band according to any one of the first to third aspects, the pair of soft members are sandwiched between the metal bands. It has a pinching force adjusting means for adjusting the force. According to this wrinkle prevention device,
The pinching force adjusting means can adjust the pinching force of the pair of soft members to the metal band, and can adjust the frictional force to the metal band. In this adjustment, even if the pinching force of the pair of soft members to the metal band is increased, the pinching force of the soft member and the frictional force to the metal band are freely adjusted without changing the pass line of the metal band. be able to.

[0014]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a schematic side view of an example of a rolling line to which a first embodiment of a metal strip wrinkle prevention device according to the present invention is applied, FIG. 2 shows the wrinkle prevention device in FIG. 1, and FIG. (B) is an enlarged side view of the upper half thereof.

In the rolling line shown in FIG. 1, the metal strip S unwound from the pay-off reel 11 is, for example, bent by a deflector roll 13 and then rolled by a rolling mill 15 via a pinch roll 16 to be rolled. Warpage is corrected by a leveler 18 arranged on the exit side of the machine 15,
Then, the deflector roll 14 via the pinch roll 17
After being bent by the winding reel, the take-up reel 12 winds the coil. In this series of rolling and winding steps, the metal strip S is conveyed from the payoff reel 11 to the winding reel 12 in the direction of arrow A while being tensioned by the winding of the winding reel 12.

Here, a metal strip S is provided between the pinch roll 17 and the deflector roll 14 on the exit side of the rolling mill 15.
A wrinkle prevention device 1 for preventing the generation of wrinkles on the surface of the device is installed. The installation place of the wrinkle prevention device 1 is as follows.
In FIG. 1, it is between the pinch roll 17 and the deflector roll 14 on the exit side of the rolling mill 15, but is not limited to this location and may be any location on the rolling line. Also, the number of installations may be plural. When the wrinkle prevention device 1 is installed on the entry side of the rolling mill 15, it is possible to prevent wrinkles of the metal strip S before rolling.
The wrinkle prevention device 1 has a thickness of 0.1 mm in particular.
Since the occurrence of wrinkles in the following ultra-thin stainless steel strip is remarkable, it is preferable to apply to a rolling line for rolling such a stainless steel strip, but rolling ordinary steel or non-ferrous metal other than the stainless steel strip is preferable. The present invention can also be applied to rolling lines.

Referring to FIGS. 1 and 2, the wrinkle prevention device 1 extends in the width direction of the metal band S orthogonal to the transport direction A of the metal band S, and is disposed above and below the metal band S. And a pair of rectangular parallelepiped support members 2. Each support member 2 is made of a lighter material than a steel material, for example, an aluminum material. A concave portion 2a extending in the width direction of the metal band S is formed on a surface of each support member 2 facing the metal band S.

In the concave portion 2a of each support member 2, a rectangular parallelepiped soft member 3 extending in the width direction of the metal band S and sandwiching the metal band S conveyed while applying tension from above and below is fixed by bonding or the like. The soft member 3 is supported by the support member 2. As a material of each soft member, any material may be used as long as it is softer than the metal band S and does not damage the metal band S by sliding with the metal band S. For example, rubber or synthetic resin is used.

A plurality of bolt through holes 4 are formed at both width ends on one side of the pair of support members 2, and screw holes 4 are formed at both width ends on the other side. 'Has been drilled. A bolt 5 is inserted into each screw hole 4 ′ in a relation of a male screw and a female screw, and is tightened and fixed.
The gap between the pair of soft members 3 is adjusted. Nut 6
The bolt 5 is fitted to the bolt 5 until it comes into contact with the support member 2 on the other side, and functions to prevent the bolt 5 from rotating. By adjusting the tightening force of the bolt 5, the pair of soft members 3
Is adjustable. Therefore, the bolt 5 constitutes adjusting means for adjusting the gap between the pair of soft members 3 and pinching force adjusting means for adjusting the pinching force of the pair of soft members 3 into the metal band S.

Further, a plurality of hook members 7 are provided upright on both outer ends of the screw hole 4 'of each support member 2. The hook member 7 of the upper support member 2 with respect to the metal band S includes
The other end of the flexible wire 8 having one end connected to a hook member 10 fixed to the housing of the rolling mill 15 or a nearby structure 9 or the like is connected. Therefore, the wrinkle prevention device 1 has a structure connected to a nearby structure via the wire 8. Since the wrinkle prevention device 1 has a light weight, even if the weight is applied to the metal band stretched while sandwiching the stretched metal band from above and below, the amount by which the metal band is actually bent is extremely small. , Can be ignored.

Next, the operation of the wrinkle prevention device 1 will be described. The metal strip S, which is rolled by the rolling mill 15 and conveyed while being tensioned, enters between the pair of soft members 3 of the wrinkle prevention device 1 via the leveler 18 and the pinch roll 17. Metal band S penetrating between a pair of soft members 3
The deformation in the width direction is restricted by the frictional force caused by the sandwiching force of the soft members 3, and the generation of wrinkles of the metal band S is prevented. At this time, the metal band S is sandwiched by the pair of soft members 3 while being stretched while maintaining the pass line position. Since its own weight is very light, the pass line of the metal band is not actually changed, and the metal band S is not actually bent by the wrinkle prevention device 1. For this reason, even if the metal band S is unwound after the winding, and the sheet is cut, no warpage occurs at the cut end. Further, each soft member 3 is softer than the metal band S, and does not damage the metal band S due to sliding with the metal band S.

The metal band S in which wrinkles are prevented from occurring
Is taken up by the take-up reel 12 via the deflector roll 14. When the wrinkle prevention effect of the wrinkle generation prevention device 1 is small, the clamping force of the bolt 5 is adjusted to increase the force for sandwiching the pair of soft members 3 into the metal band S to increase the metal band. The frictional force with respect to the metal band S may be increased, and if the pinching force of the pair of soft members 3 into the metal band S is too large to hinder the transport of the metal band S, the tightening force of the bolt 5 is adjusted. Thus, the force for sandwiching the pair of soft members 3 into the metal band S may be reduced. Even if the pinching force of the pair of soft members 3 into the metal band S is increased, the pinching force of the soft member 3 and the frictional force against the metal band S can be freely adjusted without changing the pass line of the metal band S. can do. Further, in order to increase the frictional force with respect to the metal band S, it is not necessary to increase the displacement amount in the roll pressing direction as in the related art, so that the equipment specifications and the installation space can be reduced.

Next, a second embodiment of the wrinkle prevention device according to the present invention will be described with reference to FIG. FIG.
It is the outline side view which extracted the part regarding the winding about the example of the rolling line to which the 2nd embodiment of the wrinkle occurrence prevention device concerning the present invention was applied. The wrinkle prevention device 1 shown in FIG. 3 has the same configuration as the wrinkle prevention device 1 shown in FIG. 1, but differs only in the place where the wrinkle prevention device 1 is installed. That is, the wrinkle prevention device 1 is disposed between the take-up reel 12 and the deflector roll 14 and sandwiches the metal band S wound by the take-up reel 12 from above and below, and a pair of materials softer than the metal band. A soft member 3 and a support member 2 for supporting the pair of soft members 3
And a bolt 5 for fastening the pair of soft members 3 via the support members 2 and adjusting the force for pinching the pair of soft members 3 into the metal band S, and standing at both ends of each support member 2. One end is connected to the hook members 7 of the upper support member 2 with respect to the metal strip S, and the other end is connected to a hook member 10 fixed to a nearby structure 9 with respect to the metal strip S. And a flexible wire 8.

For this reason, the metal strip S, which is rolled by the rolling mill 15 and transported in the transport direction shown by the arrow A, is bent downward by the deflector roll 14 and wound up by the take-up reel 12, is moved by the deflector roll 14 After that,
It penetrates between the pair of soft members 3 of the wrinkle prevention device 1.
The metal band S that has entered between the pair of soft members 3 is restrained from being deformed in the width direction by the frictional force caused by the sandwiching force of the soft members 3, thereby preventing the metal band S from wrinkling. At this time, the metal band S is sandwiched by the pair of soft members 3 while being stretched while maintaining the pass line position. Since its own weight is very light, the pass line of the metal band is practically not changed, and the metal band S is not actually bent by the wrinkle prevention device 1. For this reason, even if the metal band S is unwound after the winding, and the sheet is cut, no warpage occurs at the cut end. Further, each soft member 3 is softer than the metal band S, and does not damage the metal band S due to sliding with the metal band S. And
The metal strip S from which wrinkles have been prevented is placed on the take-up reel 12.
Winded up by.

When the metal strip S is wound by the take-up reel 12, the diameter of the coil 19 changes due to an increase in the number of windings as the winding progresses, and the pass line of the metal strip 19 changes downward. In this case, the pair of soft members 3 sandwiching the metal band S is made of a lighter material than the steel, and the support member 2 supporting the soft members 3 is flexible to the nearby structures. Is connected through the hook members 7 and 10 with the conductive wire 8,
Follow the change of the pass line. For this reason, even when the diameter of the coil 19 changes due to an increase in the number of windings, it is possible to reliably prevent wrinkles of the metal band S. The support member 2 that supports the soft member 3, the wire 8 that connects the support member 2 to a nearby structure 9, and the hook members 7 and 10 form a follow-up unit.

When the wrinkle prevention effect of the wrinkle prevention device 1 is small, the pair of support members 2 and the pair of soft members 3 are fastened similarly to the wrinkle prevention device 1 shown in FIG. By adjusting the tightening force of the bolts 5 to be tightened, the pinching force of the pair of soft members 3 into the metal band S may be increased to increase the frictional force against the metal band S.
If the force of sandwiching the pair of soft members 3 into the metal band S is too large and hinders the winding of the metal band S, the tightening force of the bolt 5 is adjusted to adjust the pair of soft members 3. What is necessary is just to make small the pinching force to the metal strip S. Even if the force for sandwiching the pair of soft members 3 into the metal band S is increased, the metal band S
Can be freely adjusted without changing the pass line of the soft member 3 without changing the pass line. Further, in order to increase the frictional force with respect to the metal band S, it is not necessary to increase the displacement amount in the roll pressing direction as in the related art, so that the equipment specifications and the installation space can be reduced.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various changes can be made. For example, FIG.
As shown in (a), it is supported by the support member 52,
The shape of the soft member 53 sandwiching the metal band S may be formed in a blade shape extending toward the metal band S. FIG.
In (a), reference numeral 54 denotes a hook member, and 55 denotes a wire.

Further, as shown in FIG.
Is formed by cylindrical rollers extending in the width direction of the metal band S, and the central shafts 63a of the cylindrical rollers are connected to each other by the connecting plate 62, and the connecting plate 62 is connected to the hook member 64 by the connecting plate 62. It may be connected to a nearby structure by a wire 65 through the intermediary. Further, the fastening means for fastening the pair of soft members 3 is not limited to the bolt 5 and the pair of soft members 3
May be used, as long as the pin member can be swaged. The pinching force adjusting means for adjusting the pinching force of the pair of soft members 3 into the metal band S is not limited to the bolt 5 but may be a pneumatic, hydraulic cylinder or a spring member.

The supporting member 2 for supporting the soft member 3 is not always necessary, and the pair of soft members 3 can be directly connected to each other.
It may be fastened by fastening means.

[0030]

[Example] Fe-thickness 0.03 mm in thickness and 700 mm in width
In the cold rolling of the Cr-Al alloy (20Cr-5Al), as shown in FIG. 3, a wrinkle prevention device was installed between the take-up reel 12 and the deflector roll 4. As a result, the relationship between the bolt tightening force shown in FIG. 5 and the tension at which wrinkling occurs in the metal band, and the relationship between the bolt tightening force shown in FIG. The relationship was obtained.

As can be understood from FIG. 5, when the bolt tightening force is changed from 400 N / piece to 1700 N / piece, the tension at which wrinkling occurs in the metal band is 180 N / mm.
^It has increased from ² to 700 N / mm ² . Therefore, it can be seen that increasing the bolt tightening force increases the tension at which wrinkles occur in the metal band. For this reason, wrinkles are less likely to occur as the tightening force of the bolt is increased when the metal band is being conveyed with a predetermined tension.

As can be understood from FIG. 6, when the bolt tightening force is changed from 0 N / piece to 1400 N / piece, the above-mentioned warpage is 3.1 mm at maximum and 2.8 at minimum.
mm. Therefore, it is understood that the amount of warpage does not change much even when the bolt tightening force is changed.

[0033]

As described above, according to the apparatus for preventing wrinkles of a metal band according to the first aspect of the present invention, the metal band conveyed while being tensioned is sandwiched from above and below.
Since there are provided a pair of soft members and a fastening means for fastening the pair of soft members, the 1
A pair of soft members sandwiches a metal band being conveyed while being tensioned from above and below, and the frictional force of the sandwiching force of the soft members restrains the deformation of the metal band in the width direction, thereby causing wrinkling of the metal band during conveyance. Can be prevented. At this time, the metal band is sandwiched by a pair of soft members while being stretched while maintaining the pass line position. Even if the metal band of the wrinkle prevention device is applied on the stretched metal band, its own weight is reduced. Being so light, the pass line of the metal strip is practically unaltered and the metal strip is virtually not bent by the anti-wrinkle device. Further, since each soft member is made of a material softer than the metal band, the metal band is not damaged by sliding with the metal band. Further, unlike the related art, it is not necessary to increase the displacement amount in the roll pressing direction, and the equipment specifications and the installation space can be reduced.

According to the wrinkling prevention device for a metal band according to the second aspect of the present invention, the metal band wound between the take-up reel and the deflector roll is disposed between the take-up reel and the deflector roll. A pair of soft members and a fastening means for fastening the pair of soft members, so that the pair of soft members fastened by the fastening means can be wound on a take-up reel. The metal band is sandwiched from above and below, and the deformation in the width direction of the metal band is restrained by the frictional force generated by the sandwiching force of the soft members, thereby preventing wrinkles of the metal band during winding. At this time, the metal band is sandwiched by a pair of soft members while being stretched while maintaining the pass line position. Even if the metal band of the wrinkle prevention device is applied on the stretched metal band, its own weight is reduced. Being so light, the pass line of the metal strip is practically unaltered and the metal strip is virtually not bent by the anti-wrinkle device. Further, each soft member is softer than the metal band and does not damage the metal band due to sliding with the metal band. Further, unlike the related art, it is not necessary to increase the displacement amount in the roll pressing direction, and the equipment specifications and the installation space can be reduced.

According to a third aspect of the present invention, there is provided the metal band wrinkle prevention apparatus according to the second aspect, wherein the coil diameter changes due to an increase in the number of windings on the take-up reel. When the band pass line changes, the pair of soft members are provided with a follow-up means for following the change of the metal band pass line, so that the coil diameter changes due to an increase in the number of windings on the take-up reel. When the pass line of the metal band changes, the follow-up means causes a pair of soft members sandwiching the metal band to follow the change of the pass line of the metal band, thereby reliably preventing wrinkles of the metal band. Can be.

According to the apparatus for preventing wrinkles of a metal band according to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the metal band of the pair of soft members is connected to the metal band. Since the pinching force adjusting means for adjusting the pinching force of the soft member is adjusted by the pinching force adjusting means, the pinching force of the pair of soft members to the metal band can be adjusted, and the frictional force to the metal band can be adjusted. In this adjustment, even if the pinching force of the pair of soft members to the metal band is increased, the pinching force of the soft member and the frictional force to the metal band are freely adjusted without changing the pass line of the metal band. be able to.

[Brief description of the drawings]

FIG. 1 is a first view of an apparatus for preventing wrinkling of a metal strip according to the present invention.
It is an outline side view of an example of a rolling line to which an embodiment is applied.

FIG. 2 shows the wrinkle prevention device in FIG. 1;
Is an enlarged front view, and (b) is an enlarged side view of an upper half thereof.

FIG. 3 is a schematic side view of an example of a rolling line to which a second embodiment of a wrinkle prevention device according to the present invention is applied, in which a portion related to winding is extracted.

4A and 4B show a modified example of the soft member of the wrinkle prevention device in FIGS. 1 to 3, wherein FIG. 4A is a side view when the soft member is formed in a blade shape, and FIG. FIG.

FIG. 5 is a graph showing a relationship between a bolt tightening force and a wrinkle generation tension.

FIG. 6 is a graph showing the relationship between the bolt tightening force and the amount of warpage.

FIGS. 7A and 7B show a defect state of a product due to occurrence of wrinkles of a metal band, FIG. 7A is a perspective view when a defective part is formed on a steel plate, and FIG. is there.

FIG. 8 is a schematic side view of a rolling line to which a conventional wrinkle prevention device is applied.

[Explanation of symbols]

 1 is a wrinkle prevention device 2 is a support member (following means) 2a is a concave portion 3 is a soft member 4 is a bolt through hole 4 'is a screw hole 5 is a bolt (fastening means, pinching force adjusting means) 6 is a nut 7, 10 is a nut Hook member (following means) 8 is a wire (following means) 9 is a nearby structure 11 is a pay-off reel 12 is a take-up reel 13, 14 is a deflector roll 15, a rolling mill 16, 17 is a pinch roll 18, a leveler 19 is a coil S is a metal belt

Claims (4)

[Claims] 1. A pair of soft members made of a material softer than a metal band sandwiching a metal band conveyed while being tensioned from above and below, and a fastening means for fastening the pair of soft members. A device for preventing wrinkling of a metal band. 2. A pair of soft members, which are disposed between a take-up reel and a deflector roll, sandwich a metal band wound by the take-up reel from above and below, and are made of a material softer than the metal band. An apparatus for preventing wrinkling of a metal band, comprising: fastening means for fastening a pair of soft members. 3. When the coil diameter changes due to an increase in the number of windings on the take-up reel and the pass line of the metal band changes, the pair of soft members follow the change of the pass line of the metal band. 3. The wrinkle prevention device according to claim 2, further comprising a follower. 4. The wrinkling of a metal band according to claim 1, further comprising a pinching force adjusting means for adjusting a pinching force of the pair of soft members to the metal band. Outbreak prevention device.