JP2000271645A - Inserting method of spacing paper in metal strip coiling and its inserting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably insert a sheet of spacing paper by preventing drop down of of the spacing paper on a coiling coil and the generation of wrinkles owing to it when the spacing paper is fed from the upper side to be inserted. SOLUTION: In an inserting method of a sheet of spacing paper in metal strip coiling by which the spacing paper 4 is rewound from a spacing paper coil 4 located in the upper side of a reel 2, is guided to the lower side and is inserted between layers of a metal strip 1 coiled onto the reel 2, the tail end part of the spacing paper 4 is pressed against the coiling coil side by blowing gas toward the tail end part of the spacing paper 4. Also, the gas is blown toward the tail end part of the spacing paper based on detecting information of the tail end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation for inserting a slip sheet for preventing abrasion, which is performed when a strip is wound on the exit side of a metal strip processing line, and in particular, stabilizes the tail end of a slip sheet coil. TECHNICAL FIELD The present invention relates to a method for inserting a slip sheet to be inserted into a sheet and an insertion device suitable for use in the method.

[0002]

2. Description of the Related Art In order to prevent scratches generated when a metal strip is wound into a coil, it is necessary to avoid contact between the metal strips. By inserting a slip sheet into the band, scratches are prevented. In the operation of inserting the slip sheet, since the handling of the slip sheet at the time of insertion is easy, generally, as shown in FIG. 1, a method of feeding the slip sheet from above using a metal band as a lower winding is often used. I have. That is, in FIG. 1, while the metal strip 1 is supplied from the left, the slip-sheet 4 is taken out from the upper paper pay-off reel 5a, guided downward, inserted, and both are wound by the tension reel. Then, the winding coil 8 in which the metal band and the slip sheet are alternately layered is formed. Incidentally, there is another paper payoff reel 5b, and when one of the papers runs out, the operation of supplying the paper from the other is repeated. In this case, the inserted slip sheet is likely to be wrinkled and further transferred to a metal band. Therefore, the guide roll 7 or a similar function is usually provided in a path for guiding the slip sheet downward at an appropriate interval. Tension rolls 6 are provided to prevent wrinkles from occurring by winding a slip sheet around these rolls. By taking such measures, in the steady state of the insertion operation, the effect of preventing wrinkles functions effectively, and the insertion operation can be performed without any particular problem.

[0003]

However, for example, when the insertion is started in a state where the length of the interleaf wound on the paper payoff reel is shorter than the length of the metal strip, the interleaving end, which is an unsteady portion, is started. There was a problem that wrinkles at the edges were transferred to the metal band. Specifically, in FIG. 1, when the slip sheet runs out during the operation of paying out the slip sheet from the paper pay-off reel 5a and performing the inserting operation, the tail end of the slip sheet comes off from the paper pay-off reel, and the slip sheet becomes the paper pay-off reel. Since the release from the restraint by the reel 5a and the tension reel 2, the slip sheet falls down on the metal band of the winding coil. If the slip sheet drips in this way, it is often
Wrinkles occur in the slip sheet. If the wrinkles are inserted as they are and wound around a coil, the wrinkles are transferred as a pattern to the metal band, and the quality of the product is impaired.

[0004] As a method of preventing wrinkles at the tail end of the slip sheet and avoiding transfer to the metal band, the use of paper for a longer time than the metal band allows the paper to be inserted during the insertion of the winding coil. It is conceivable not to use up the tail edge of the paper. However, such a measure inevitably causes a slip sheet to remain, and the remaining slip sheet is wasted, and it is necessary to frequently replace the slip sheet coil. It was not a solution, and the problem remained. It can be said that the above-described problem in the unsteady portion of the slip sheet insertion operation is particularly prominent in a method in which the metal strip is wound down and the slip sheet is supplied and inserted from above.

Accordingly, an object of the present invention is to solve such a problem in the prior art when a metal band is wound up and a slip sheet is supplied and inserted from above.
A slip-sheet inserting method and a slip-sheet inserting device for winding a metal band, which prevent the slip of the slip-sheet onto the winding coil and the occurrence of wrinkles caused by the drop and enable stable slip-sheet insertion. It is to propose.

[0006]

Means for Solving the Problems In order to achieve the above object, the present inventors take up the metal band below, supply the interleaf from above, and insert the interleaf at the tail end of the interleaf. Even so, in order to prevent dripping onto the take-up coil and prevent wrinkles from occurring, studies were made on a method of supplying a slip sheet, an arrangement of guide rolls, and the like. As a result, it has been found that it is extremely effective to perform the gas blowing so that the tail end of the slip sheet is pressed against the winding coil, and to synchronize the blowing timing with the detection of the tail end of the slip sheet.

The present invention has been completed based on such findings, and the gist thereof is as follows. (1) In the method of inserting a slip sheet in a metal strip winding method, the slip sheet is rewound from a slip sheet coil located above the reel and is guided downward and inserted between layers of the metal strip to be wound onto the reel. A method of inserting a slip sheet in winding a metal band, wherein the tail end of the slip sheet is pressed against a winding coil by blowing gas to the tail end.

(2) In the above (1), a method of inserting a slip sheet in winding a metal band, wherein gas is blown to a tail end of the slip sheet based on detection information of the tail end.

(3) A slip-sheet inserting device for winding a metal strip, wherein a slip-sheet is rewound from a slip-sheet coil located above the reel and is guided downward between the layers of the metal strip to be wound onto the reel. Means for detecting the tail end of the slip sheet, and a gas blowing nozzle arranged so as to be able to be blown so as to press the tail end of the slip sheet against the winding coil, wherein the gas blowing nozzle is provided with the tail end detecting means. A slip-sheet insertion device for winding a metal band, characterized in that the blowing operation is performed based on information from a user.

[0010] (4) A slip-sheet in metal strip winding, in which a slip-sheet is rewound from a slip-sheet coil positioned above the reel and is guided downward and inserted through a guide roll between layers of the metal strip to be wound below the reel. In the insertion device, a means for detecting the tail end of the slip sheet, and a gas blowing nozzle arranged so as to be able to blow so as to press the tail end of the slip sheet against the winding coil side, the gas blowing nozzle, An interleaf sheet insertion device for winding a metal band, wherein a blowing operation is performed based on information from the tail end detecting means, and the guide roll is movable in a front-rear direction.

[0011]

DETAILED DESCRIPTION OF THE INVENTION In the present invention, gas is blown to prevent the tail end of the slip sheet from dripping.
Air blowing is suitable for air blowing in consideration of ease of handling and cost. As a result of this gas blowing, when the paper in the paper pay-off reel runs out, before the tail end of the slip-sheet reaches the metal band of the winding coil, the tail end wraps around the winding coil as it is. Press it. By performing the gas blowing to the tail end, the tail end of the slip sheet does not drip on the metal band of the winding coil, so that the winding can be performed without causing wrinkles. The length of the paper during the gas blowing may be started when the winding is in a steady state and may be continuously performed until the payout from the paper payoff reel is completed. It is desirable to perform only the tail edge of the slip sheet. The effect can be obtained if the total spray length of the tail end of the slip sheet is in the range of 0.5 to 10 m from the tail end.

In order to blow the gas only to the predetermined area at the tail end of the slip sheet, the timing at which the tail end of the slip sheet is dispensed from the paper pay-off reel is detected, and the timing is adjusted to this detection information. It is effective to start blowing gas. Examples of the means for detecting the tail end of the slip sheet include an optical method such as a CCD camera, a photoelectric tube, and a distance sensor, and a mechanical method such as a tension signal in a paper payoff reel. By transferring the detection information of the tail end of the slip sheet to a mechanism (such as a valve) for operating gas blowing, gas blowing can be automatically performed. When the automation of gas blowing can be achieved by the above method,
The tail end of the slip sheet does not drip on the metal band of the winding coil, and can be wound around the coil without causing wrinkles. In addition, even in the case where the slip sheet is broken in the middle of the winding, exactly the same effects as those at the tail end when the break is not broken can be obtained. Therefore, the tail end in the present invention includes the tail end broken at the time of such an abnormality.

[0013]

FIG. 2 is a block diagram of a slip sheet inserting apparatus showing one embodiment of the present invention. In the figure, reference numeral 9 denotes a blowing nozzle for blowing gas, and reference numeral 10 denotes a slip sheet detection sensor for detecting the tail end of the slip sheet. Reference numeral 7 denotes a guide roll, which can be moved in the front-rear direction of winding, that is, in the left-right direction of the drawing (indicated by an arrow).
Structures other than the above are denoted by the same reference numerals as in FIG. 1 and are omitted because they are common. In the apparatus shown in FIG. 2, the metal strip is fed from the left side of the drawing and wound up by the tension reel 2, while a slip sheet 4 is supplied from above and inserted between the metal strips and wound up by the tension reel 2 in the same manner. . As a result, the metal strip and the slip sheet are wound alternately in a layered manner to form a winding coil 8.

The method of inserting a slip sheet is as follows.
The guide roll is arranged on the left (the position indicated by the dotted line).
Under this condition, the slip-sheet 4 is a paper pay-off reel 5
a and is hung down as indicated by the dotted line, and wound up together with the metal strip 1 on the tension reel 2. After winding several rolls, the guide roll 7 moves forward (in the position indicated by the solid line on the right) in the winding direction and is fixed. In steady state,
With such an arrangement of the guide rolls, the slip sheet is wound around the guide roll, and winding is performed so as to minimize wrinkles of the slip sheet.

FIG. 3 shows the state of the unsteady part. The slip sheet 4 wound on the paper payoff reel 5a during winding
When the trailing edge is free and the tail end is free, the tail end of the slip sheet 4 (1) is detected by the slip sheet detection sensor 10. Valve 1 that opens and closes gas blowing nozzle 9 based on this detection information
1 operates and gas blowing from the blowing nozzle is started. The blowing direction of the gas from the blowing nozzle is such that the tail end of the slip sheet is pressed in a direction in which the tail end of the slip sheet is wound around the winding coil 8 as it is (in FIG. 3, the right opening width between the slip sheet and the winding coil). Is performed so that it becomes narrower). Specifically, it is effective to spray from upper left to lower right in FIG. At this time, as described above, since the guide roll is on the right side, the slip sheet 4 is stretched on the right side in advance.
It is easy to flutter to the right when blowing gas, and acts to further enhance the blowing effect.

The timing of the start of spraying is such that the necessary spray length at the tail end is ensured in consideration of the distance between the paper payoff reel and the tension reel, the payout speed of the slip sheet, the arrangement of rolls, and the like. In addition, it is desirable to set the operation timing of the opening / closing valve in advance.
In this regard, the installation position of the slip sheet detection sensor 10 is set so that the timing of the start of spraying is sufficiently early to press the slip sheet against the coil even when the winding speed is the fastest in all operating conditions. Preferably, it is close to a paper payoff reel.

In this manner, the tail end of the slip sheet 4 is pressed against the winding coil 8 side, and 4 (2) and 4 (3) in FIG.
As described above, the tail end of the slip sheet does not hang down on the metal band 1 of the winding coil 4 and no wrinkles are generated. In this process, when the interleaf wound on the paper payoff reel 5a is used up, the guide roll 7 is immediately returned to the position at the time of inserting the front end of the interleaf (the original dotted line position), and the other paper payoff reel is returned. By inserting and supplying the slip sheet from 5b, the slip sheet is supplied almost continuously. In addition,
The tension roll 6 or the guide roll 7 is not necessarily required if there is no wrinkle in the slip sheet and the tail end does not drip onto the metal band of the winding coil by the blowing of the gas blowing nozzle.

[0018]

As described above, according to the present invention,
In the method of winding the metal strip below and supplying the slip sheet from above, the tail end of the slip sheet does not drip onto the metal strip on the winding coil, preventing the transfer of wrinkles to the metal strip. it can. Further, according to the present invention, since the slip-sheet coil can be used up to the end, the work load of replacing the slip-sheet coil can be greatly reduced, and the slip-sheet cost can be reduced.
Further, according to the present invention, it is possible to appropriately avoid a trouble when the slip sheet is broken.

[Brief description of the drawings]

FIG. 1 is a diagram showing a conventional example of a slip sheet insertion device for winding a metal band.

FIG. 2 is a diagram showing a slip sheet insertion device in winding a metal band according to the present invention.

FIG. 3 is a schematic diagram showing a state where a tail end of a slip sheet is inserted according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 metal strip 2 tension reel (reel) 3 deflector roll 4 slip-sheet 5 a, 5 b paper pay-off reel 6 tension roll 7 guide roll 8 winding coil 9 blow-out nozzle 10 slip-sheet detection sensor 11 opening / closing valve

Claims (4)

[Claims] 1. A method of inserting a slip-sheet in a metal-strip winding method, wherein a slip-sheet is rewound from a slip-sheet coil located above the reel and guided downward between the layers of the metal strip to be wound on the reel. A method of inserting a slip sheet in winding a metal band, wherein gas is blown at a tail end of the paper so that the tail end is pressed against the winding coil. 2. The method for inserting a slip sheet in winding up a metal band according to claim 1, wherein the gas blowing to the tail end of the slip sheet is operated based on the detection information of the tail end. 3. A slip-sheet insertion device for winding a metal strip, wherein the slip-sheet is rewound from a slip-sheet coil located above the reel and guided downward between the layers of the metal strip to be wound onto the reel. Means for detecting the tail end of the paper, and a gas blowing nozzle arranged so as to be able to blow so as to press the tail end of the slip sheet against the winding coil side, the gas blowing nozzle,
A slip-sheet inserting device for winding a metal band, wherein a blowing operation is performed based on information from the tail end detecting means. 4. A method of winding a slip-sheet in a metal-strip winding method, wherein the slip-sheet is rewound from a slip-sheet coil located above the reel and inserted downward through a guide roll between layers of the metal strip to be wound on the reel. In the insertion device, a means for detecting the tail end of the slip sheet, and a gas blowing nozzle arranged so as to be able to blow so as to press the tail end of the slip sheet against the winding coil side, the gas blowing nozzle includes:
An interleaf sheet insertion device for winding a metal band, wherein a blowing operation is performed based on information from the tail end detecting means, and the guide roll is movable in a front-rear direction.