JP2009106997A - Method and apparatus for winding metal-strip coil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for winding a metal-strip coil, the method and the apparatus being suitable to a thin metal strip of about 4 mm in thickness and providing the excellent surface property and wound shape of the coil after being wound. <P>SOLUTION: The apparatus for winding the metal strip for winding the metal strip into the coil shape on a reel is provided with an adhesive injecting device for applying the adhesive onto the outer wound surface at the topmost end part of the metal strip. The adhesive injecting device, when the metal strip is wound into a coil shape, applies an adhesive onto the outer wound surface being the outer circumferential side in the topmost end part of the metal strip and adheres the topmost end part to the inner wound surface of the metal strip to be wound on its outer layer. and the adhesive injecting device is arranged so that the adhesive is applied to the outer wound surface at the topmost end part just before the outer wound surface in the topmost end part of the metal strip is brought into contact with the inner wound surface of the second roll. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a metal strip coil winding method and apparatus having good surface properties and winding shape after winding, and more particularly to a metal strip coil suitable for a thin metal strip having a plate thickness of 0.4 mm or less.

  The metal strip is coiled around a reel of a take-up reel device arranged on the exit side of a cold rolling or surface treatment line such as refining, pickling, tandem mill, etc., and suspended to the next process with a crane or the like Moves down.

  When extracting the coil from the reel of the take-up reel device, if the tip of the innermost winding part of the metal strip is positioned vertically upward inside the coil, depending on the material strength and thickness of the metal strip, the tip of the innermost winding part is caused by gravity. A phenomenon called “sag” occurs in which hangs downward in the vertical direction. This sagging phenomenon becomes more prominent as the plate thickness is thinner.

  When "sagging" occurs, the inner winding part is damaged by the tongs during the suspension work for transporting the coil with a crane, or it becomes an obstacle when inserted into the reel of the rewinding machine on the entry side of the next process. For this reason, various techniques for preventing “sag” at the tip of the innermost winding portion have been proposed.

  Patent Document 1 relates to a method and an apparatus for temporarily fixing a metal strip coil, and in order to prevent “sag” of the innermost winding portion of the metal strip coil, when the metal strip is wound as a coil, It is described that a double-sided adhesive tape is affixed to the outer winding surface on the outer peripheral side of the tape and bonded to a metal strip wound on the outermost layer of the most advanced part.

  In Patent Document 1, as prior art, 1. 1. Technology for temporarily fixing the coil after it is extracted from the winder (for example, Patent Document 2). 2. Technology for temporarily welding an inner winding portion and a metal strip wound on the outer side of a winding reel when the coil is wound by a winder (Patent Document 3); A technique is described in which a sleeve is fitted on a reel of a winder, a metal strip is wound up, the coil is rewound in the next step, and then the sleeve is recovered.

Patent Document 1 describes that in these prior arts, it is an object of the present invention to solve the problem that the occurrence of “sag” takes time and scrap is generated by cutting a tack weld. ing.
Japanese Unexamined Patent Publication No. Hei 2-192819 Japanese Utility Model Publication No. 60-181210 Japanese Patent Publication No.53-16383

  However, in the metal strip coil temporary fixing method described in Patent Document 1, the tip of the innermost winding portion of the coil is attached to the outer winding surface on the outer peripheral side of the coil, and the winding is wound on the outer layer of the most advanced portion. The following disadvantages arise due to the adhesion to the resulting metal strip.

  First, 1. After the coil has been rewound, the double-sided adhesive tape must be removed, resulting in a new work process. 2. Double-sided adhesive tape requires extreme caution in handling, and has a great mental burden on the work so as not to re-adhere to peripheral coils and equipment. 3. Since the double-sided adhesive tape has a thickness, a thin metal strip with a thickness of 0.4 mm or less has its tape shape transferred after the second winding, especially ten times or more in soft materials, etc. An abnormal part occurs, and the scrap which is originally one to several turns increases.

  In addition, when the double-sided adhesive tape is used, since the metal strip in the innermost circumference and the width direction of the innermost coil are completely brought into close contact with each other at the beginning of winding, a minute position correction of the innermost circumferential tip cannot be performed.

  For this reason, if it is found that the innermost peripheral tip protrudes from the coil after the coil has been extracted, the protrusion cannot be corrected, and folding may occur in the transportation process, or the operator may be cut by the protrusion. There is also a concern that the product will be shipped with a poor shape. Also, when the coil tip is fixed by welding (for example, spot welding), transfer of the welded portion to the coil after the second winding becomes a problem.

  Therefore, an object of the present invention is to provide a metal strip winding method and apparatus that solves the above problems.

The object of the present invention can be achieved by the following means.
1. When winding a metal strip in a coil shape, an adhesive is applied to the outer winding surface of the metal strip on the outer peripheral side of the coil, and the metal strip is wound on the outer layer of the metal strip. A method for winding a metal strip, characterized by adhering to a winding surface.
2. A metal strip take-up device for winding a metal strip in a coil shape on a reel, comprising an adhesive injection device for applying an adhesive to the outer winding surface of the most advanced portion of the metal strip, wherein the adhesive injection device The outermost winding surface of the metal strip is disposed so as to apply an adhesive to the outer winding surface of the most distal portion immediately before the outer winding surface of the metal strip comes into contact with the inner winding surface of the second winding. Metal strip winding device.

  According to the present invention, it is possible to wind up a thin metal strip with good workability and excellent surface properties, which is extremely useful in the industry.

  The present invention is characterized in that an adhesive is used to adhere the outermost winding surface of the metal strip to the inner winding surface of the metal strip wound around the outer layer. Hereinafter, it explains in detail using a drawing.

  FIG. 1 is a schematic external view for explaining a winding device suitable for application of the present invention. FIG. 2 shows a structure of an adhesive injection device arranged in the winding device shown in FIG.

  In these drawings, 1 is a take-up reel, 2 is a metal strip, 3 and 3a and 3b are guide rollers, 3a and 3b are arranged at the end, 4 is an endless belt, and 5 is an adhesive injection Device, 6 is an adhesive, 7 is a coil, 8 is a carousel reel, 21 is an outer winding surface of the most advanced portion of the metal strip 2, 51 is a hollow tube for injection of adhesive provided in the adhesive injection device 5 , A indicates the traveling direction of the metal strip 2, and b indicates the injection direction of the adhesive.

  The illustrated winding device is configured by disposing an adhesive injection device 5 on a winding device having a known carousel reel 8 to which two winding reels 1 are attached. The metal strip 2 is pressed onto the outer peripheral surface of the reel 1 attached to the carousel reel 8 by the endless belt 4 that rotates on the guide roller 3, and is wound around the reel 1.

  The winding direction of the metal strip 2 includes an upper winding when the reel 1 rotates clockwise (clockwise) and a lower winding when the reel 1 rotates counterclockwise (counterclockwise). FIG. 1 shows an upper winding. Indicates.

  The adhesive injection device 5 has the outer winding of the most distal portion 21 immediately before the outer winding surface of the most distal portion 21 of the metal strip 2 wound on the take-up reel 1 comes into contact with the inner winding surface of the second winding. It arrange | positions so that the adhesive agent 6 may be apply | coated to a surface.

  Since the adhesive is applied to the outer winding surface of the most distal end portion 21 of the metal strip 2, which is the outer peripheral side of the coil, the most distal end portion 21 is adhered to the inner winding surface of the metal strip 2 wound around the outer layer. It is possible to prevent “sagging”.

  The adhesive injection device 5 is a plurality of injection hollow tubes 51 arranged so as to be uniform in the width direction of the metal strip 2, and sprays the adhesive toward the metal strip 2 using a pressure device (not shown). (Arrow b).

  Since the adhesive is sprayed by the injection hollow tube 51, the spray area 6 is limited on the metal strip 2. However, the injection hollow tube 51 is arranged so that the adhesive can be sprayed obliquely from above in the traveling direction of the metal strip 2 (arrow a), and prevents the adhesive from adhering to the guide rollers 3a and 3b.

FIG. 3 is a front view of the winding device showing the arrangement position of the adhesive injection device 5 in the case of top winding,
The adhesive injection device 5 is installed on the reel surface of the take-up reel 1 between the winding end point where the metal strip 2 is released from the pressing of the endless belt 4 and the winding start end point. Since the metal strip 2 advances along the arrow a, the winding end point is around the guide roller 3a.

  The adhesive injection device 5 may be installed so that the injection hollow tube 51 sprays the adhesive from obliquely above in the traveling direction of the metal strip 2, and the method of attaching to the winding device is not particularly defined.

  FIG. 4 is a front view of the winding device showing the arrangement position of the adhesive injection device 5 in the case of bottom winding, and the adhesive injection device 5 is located between the guide roller 3b serving as a winding end point and the winding start end point. Install along.

  The type of the adhesive is not particularly specified, but it has an adhesive strength that prevents “sagging” usually required for the coil winding work of the metal strip 2 within about 10 minutes to 1 hour, and within the coil. A gel-like material capable of minute position correction of the tip is preferable. For example, a rubber adhesive or an epoxy adhesive can be used.

  Since the tip of the metal strip is often scrapped, product defects do not occur even if “sag” is prevented using an adhesive. In the example of the present invention, the take-up reel device is described as a carousel reel, but is not limited, and can be applied to a general tension reel and a belt wrapper.

The front view explaining the structure of the winding apparatus which concerns on one Example of this invention. The figure explaining the structure of the adhesive agent injection apparatus of the winding apparatus which concerns on the example of this invention shown in FIG. The front view explaining the structure of the winding apparatus which concerns on one Example of this invention in the case of an upper winding. The front view explaining the structure of the winding apparatus which concerns on one Example of this invention in the case of a lower winding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Take-up reel 2 Metal strip 3, 3a, 3b Guide roller 4 Endless belt 5 Adhesive injection apparatus 6 Area | region 7 Coil 8 Carousel reel 21 Tip part 51 Hollow tube for injection a Arrow which shows the advancing direction of a metal strip b Bonding Arrow indicating the injection direction

Claims (2)

  When winding a metal strip in a coil shape, an adhesive is applied to the outer winding surface of the metal strip on the outer peripheral side of the coil, and the metal strip is wound on the outer layer of the metal strip. A method of winding a metal strip, characterized by adhering to a winding surface.   A metal strip take-up device for winding a metal strip in a coil shape on a reel, comprising an adhesive injection device for applying an adhesive to the outer winding surface of the most advanced portion of the metal strip, wherein the adhesive injection device The outermost winding surface of the metal strip is disposed so as to apply an adhesive to the outer winding surface of the most distal portion immediately before the outer winding surface of the second winding comes into contact with the inner winding surface of the second winding. Metal strip winding device.

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