JPH0494814A - Coiling method of strip metal - Google Patents

Abstract

PURPOSE:To efficiently prevent plane bend by setting a groove member of hard material in which a groove that is inclined in the direction that a part situating on the front side in coiling direction is gradually approached to the coiling center is provided. CONSTITUTION:When the tip of a steel strip 8 is brought into contact with a reel sleeve at the position on this side of the inclined groove 4 of the groove member 3 due to the effect of the thickness of steel strip, warpage at the tip part of steel strip, etc., the tip part of steel strip is smoothly slid to the side of the inclined groove on the outer surface of the groove member and slipped into the groove, because frictional force between the hard groove member 3 which is set in the reel sleeve and the tip of steel strip is smaller. The tip part of steel strip is surely reached to a prescribed position. At the time of coiling the steel strip on the reel sleeve, a part where is adjacent to the rear of the tip part of steel strip is forcedly bent in the direction along the outer surface 6 of the main body of the sleeve with a corner part 5 where is situated on the rear side of coiling of the inclined groove of the groove member. In this way, the generation of plane bend is evaded by preventing the coiled steel strip from being bent in the inside direction of coil.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a method for winding a metal strip, such as a copper strip, onto a reel sleeve mounted on a take-up reel of a winding machine.
This occurs in the steel strip after the second spring of the steel strip. The present invention relates to a method for winding a metal strip that can effectively prevent the occurrence of so-called surface folding.

[Prior Art] When winding a metal strip (the following will be explained using an example of a copper strip) using a winding machine, depending on the thickness of the tip of the first spring of the copper strip wound on the reel sleeve, sometimes In addition, due to the warping of the tip end in the winding direction or in the opposite direction, the copper strip to be wound from the second spring onward may have a step difference due to the thickness of the winding tip steel strip. As a result, so-called surface folding may occur, in which the sleeve cannot be wound smoothly along the outer peripheral surface of the sleeve.

In general, the number of turns required for this surface fold to naturally resolve is particularly large when the steel strip is thick or is made of soft material such as cold-rolled steel strip or aluminum strip. Therefore, many rolls of steel strip were defective.

Therefore, in order to prevent the occurrence of such surface bending, for example, Japanese Patent Laid-Open Nos. 56-149939 and 62
A winding method as disclosed in Japanese Patent No.-124025 has been proposed. In the former method, a rubber reel sleeve is used, and the steel strip is wound with the tip of the belt stored in a groove provided on the surface of the reel sleeve. This method prevents the occurrence of surface bending due to the thickness of the tip of the strip, and in the latter method, only the tip of the metal strip has a curvature larger than the outer diameter of the rubber reel sleeve. By pre-curving it in the winding direction and then winding it up with a reel sleeve, the occurrence of surface folding due to the bending tip biting into the reel sleeve is prevented.

[Problem to be solved by the invention]

However, in the conventional technology disclosed in Japanese Patent Application Laid-Open No. 56-149939, since the entire reel sleeve is made of rubber, it is particularly difficult to use when the copper strip is thick and the tip of the tuning strip. If the reel is warped in the winding direction, the tip of the reel tends to get caught on the sleeve due to friction between the steel strip and the reel sleeve, so make sure to align the tip of the reel accurately with the grooved part of the sleeve. is difficult,
On the one hand, there is the problem of not being able to fully utilize the surface bending prevention function when winding the copper strip, and on the other hand, when it comes to accurately aligning the tip of the steel strip with the concave strip of the sleeve, it takes too much time to align the tip. Therefore, in a continuous line such as a continuous plating line, there was a risk that the line would stop.

Moreover, if the tip of the copper strip is curved in the opposite direction to the winding direction, even if the tip can be accurately aligned with the groove of the sleeve, the tip will be bent backwards. Since it is virtually impossible to wrap the sleeve exactly along the surface by curving the adjacent portion in the opposite direction to the tip portion, using the edge of the groove as a boundary, the sleeve has a function to prevent surface folding. I could barely hope for anything.

Furthermore, in the conventional technique disclosed in Japanese Patent Application Laid-Open No. 62-124025, since the tip of the metal strip is actively curved in the winding direction, the rootability of the metal strip to a continuous line such as a continuous plating line is poor. Therefore, in order to avoid such problems, when selecting the location of the tip bending device,
Another problem was the high cost of modifying the equipment.

This invention solves all of the problems of the prior art, regardless of the thickness of the copper strip or the warpage of its tip, and it also solves the problem of worsening the rootability of the continuous line and preventing modification of equipment. It is an object of the present invention to provide a method for winding a copper strip that can extremely effectively prevent surface folding without causing any necessity.

[Means to solve the problem]

The steel strip winding method of the present invention is characterized in that when a copper strip is wound onto a reel sleeve mounted on a take-up reel, a portion of the main body of the sleeve made of an elastic material is located on the front side in the winding direction. The tip of the metal band is fitted into the groove of the reel sleeve, which is fixed by fitting a groove member made of a hard material with a groove that gradually slopes toward the winding center. After that, the copper strip is wound onto the reel sleeve by rotating the reel sleeve.

[For production]

In this winding method, for example, by electro-optically detecting the position of the groove member of the reel sleeve, when the reel sleeve reaches a position where the tip of the copper strip can just enter into the inclined groove of the groove member. Then, the reel sleeve and thus the take-up reel are automatically stopped, and the steel strip is then fed to the take-up reel.

In this case, when the tip of the rope directly enters the inclined groove of the groove member, the subsequent re-operation of the take-up reel starts winding the copper strip onto the reel sleeve. . On the other hand, if the tip of the steel strip comes into contact with the reel sleeve at a position on the front side of the slanted groove of the groove member due to the thickness of the copper strip, the warpage of the tip of the copper strip, etc., the reel sleeve Based on the small frictional force between the hard groove member fitted into the steel strip and the tip of the steel strip, the tip of the copper strip
Slide smoothly on the outer surface of the groove member towards the inclined groove side,
Finally, by sliding it into the slanted groove, the tip of the copper strip easily and reliably reaches a predetermined position, after which winding of the copper strip begins upon reactivation of the take-up reel. do.

By starting winding in this manner, when winding the steel strip onto the reel sleeve, the corner of the groove member located on the winding rear side of the inclined groove is located behind the tip of the copper strip. Since the adjacent portion is forcibly curved in the direction along the groove member surface and ultimately the outer surface of the main body of the sleeve, the steel strip can be bent into a reel sleeve regardless of the thickness of the steel strip or the direction of warping of the tip end. It is possible to wind the steel strip along the surface accurately, which effectively prevents the steel strip being wound from bending inward of the winding, thereby sufficiently avoiding the occurrence of surface bending. .

Thus, by following this winding method, surface folds can be avoided during winding of the copper strip without the risk of deterioration of threadability on a continuous line or the need for modification of equipment. can be effectively prevented.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a perspective view illustrating a reel sleeve used in carrying out the present invention, and FIG. 2 is an enlarged sectional view of a main part thereof.

This reel sleeve is attached around the take-up reel.
The outer surface of a cylindrical sleeve main body 1 made of an elastic material, such as rubber or a rubber-like elastic material, is provided with a groove 2 extending in the axial direction at at least one location in the circumferential direction, and
A groove member 3 made of metal ceramic or other hard material is fitted and fixed into this groove, and this groove member 3
A groove 4 is provided on the outer surface of the groove member 3 so that the portion located on the front side in the winding direction shown by arrow A in the figure is inclined in a direction gradually approaching the winding center. The part located on the front side in the taking direction is inserted into the sleeve main body, while the part located on the rear side of the inclined groove 4 is inserted into the outer surface 6 of the sleeve main body l via the corner 5 under a certain curvature. or continuous under a gradually changing curvature.

Incidentally, the depth of the inclined groove 4 formed at a constant depth can be adjusted to a required depth by placing a stopper 7 of an appropriate size within the inclined groove.

In winding the copper strip onto the reel sleeve, the reel sleeve, and thus the take-up reel, are preferably automatically stopped at a position as shown in FIG. 3(a), for example. Then, by advancing the steel strip 8 toward the inclined groove 4 of the groove member 3 made of hard material, the tip end thereof enters the inclined groove of the groove member 3, and the take-up reel is left as it is. By continuing to advance the steel strip 8, the portion of the steel strip 8 adjacent to the rear of the groove-like entrance portion is slightly curved as shown in FIG. Based on the rotation of the take-up reel, the winding of the belt 80 onto the reel sleeve is started under the cooperation of the take-up reel and the belt wrapper 9, as shown in FIG. 3(C). This is done by continuously winding the steel strip 8 onto the reel sleeve under the retraction of the peltra pump 9.

By the way, the advance of the tip of the steel strip into the inclined groove may be caused directly by the advancing displacement of the steel strip 8, but in many cases, the tip of the steel strip 8 may be warped or Due to the influence of the weight of the tip, direct penetration cannot be brought about, and the tip of the steel strip 8 is initially inserted into the inclined groove of the groove member 3, as shown by the imaginary line in FIG. 2, for example. 4
It will come into contact with the outer surface further back. However, the frictional force between the tip of the steel strip 8 and the groove member 3
Since it is made of a hard member, it is extremely small, and the tip of the steel strip 8 does not bite into the groove member 3, so the tip of the steel strip 8 is not allowed to continue advancing in any case. Based on the displacement, it smoothly slides on the outer surface of the groove member 3 toward the inclined groove, and finally enters the inclined groove.

When the steel strip 8 is wound up after the tip of the steel strip enters into the inclined groove, the corner 5 adjacent to the rear side of the inclined groove 4 is A portion adjacent to the rear of the tip is subjected to a groove member 3 under high hardness, regardless of the direction of warpage of the tip of the steel strip and the presence or absence of warpage.
The steel strip 8 is forced to curve in the direction along the outer surface of the reel sleeve, and thus the outer surface 6 of the sleeve main body 1, so that the steel strip 8 can be accurately aligned with the surface of the reel sleeve under any conditions. Therefore, it is possible to sufficiently prevent the occurrence of bending of the steel strip 8 toward the inside of the winding, that is, occurrence of surface folding, particularly at the initial stage of winding.

By the way, when we wound up a copper strip using various reel sleeves with an outer diameter of 610 mm, we measured the length from the winding tip until the surface folds naturally disappeared, and the results are shown in the table below. It became a street.

Note that the length at which surface bending occurs is measured by measuring all visually recognized items, even minute irregularities, and the total length is 10
If the diameter is less than m, there is no problem in practical use.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the thickness of the steel strip and the pre-warping of the tip thereof can be adjusted by the action of the groove member made of a hard material and having the inclined grooves. Regardless of the direction, it is possible to very effectively prevent the occurrence of surface folding during winding.

[Brief explanation of drawings]

FIGS. 1 and 2 are a perspective view and an enlarged sectional view of essential parts, respectively, illustrating a reel sleeve used in carrying out the present invention, and FIG. 3 is a process diagram of the inventive method. 1... Sleeve main body, 2... Groove, 3...
Groove member, 4... Slanted groove, 5... Corner,
6...Outer surface, 7...Stopper
8...fAAlI

Claims (1)

[Claims] 1. When winding a metal band onto a reel sleeve attached to a take-up reel, the main body of the sleeve made of an elastic material has a portion located on the front side in the winding direction that gradually slopes toward the winding center. The distal end of the metal band is fitted into the groove of a fixed reel sleeve made of a hard material, and then the reel sleeve is rotated. A method for winding a metal band, characterized by winding the metal band onto a reel sleeve.