KR19980086437A - High speed winding method of narrow film - Google Patents

Abstract

As a method of winding the narrow film F on the winding shaft 20 or the support tube 22 fixed thereto at a high speed, the narrow film F is formed at a position immediately before the narrow film F is wound on the winding shaft 20. The narrow width film F is compressed and wound in a state with a pair of guide means 24 and 24 having a space width dimension smaller than the width of F).

Since the narrow film F is compressed in the width direction by the guide means 24 and 24, when the narrow film F is wound on the winding shaft 20 or the support tube 22 fixed thereto, the corrugated state is reduced. And a part thereof contacts the lower film F. Thereby, since the generation of the air layer continuous in the width direction can be prevented, and the fall of the external frictional force (friction coefficient) between films can be prevented, the slide of the width direction of the film F is suppressed.

Description

High speed winding method of narrow film

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of winding a narrow film on a winding shaft or a support tube fixed thereto at a high speed, and more particularly, to a high speed winding method of a narrow film that can be wound at high speed without winding off and to a large diameter.

The film is used as a liner material to prevent adjacent materials from being worn out and damaged when coiling a metal strip such as copper, copper alloy, SUS (including tin plating material) into a coil shape.

4 shows a cutting system of a conventional metal strip. The cutting system 50 of the metal strip is a system for traversing and winding a metal strip made of copper, copper alloy, SUS (including tin plating material) at high speed under tension, and roughly having a predetermined width. Slitter for cutting the unwinding roll 52 wound around the metal strip and the metal strip 51 unwound from the unwinding roll 52 into a plurality of narrow metal bands 53 under tension. and a plurality of winding rolls 56 which are not provided with a slitter 54 and a brake mechanism for traverse-winding the metal band 53.

Behind the unwinding roll 52, the film is cut off or out of film F (which detects a large meandering motion and generates a signal which suddenly stops the metal strip 51 before the film reaches the slitter 54, The missing detector 58 is provided.

The film F on the metal strip 51 is detected by the cut or missing detector 58 of the film and transmitted to the control panel 60 as the detection signal 61. The control panel 60 sends a stop signal 62 to the unwinding roll 52 and the slitter 54, and makes a sudden stop so that the detected film stops immediately before reaching the slitter 54.

The plurality of metal bands 53 cut by the slitter 54 are deflected by the separator 66 in the direction of the winding roll 56 for each, so that NO. The winding rolls 56 are wound by traverse winding in positions 1 to 5.

In the unwinding roll 52, since the metal strip 51 is wound through the film as a liner material as described above, the film must be wound when the metal strip 51 is released to the slitter 54 side. FIG. 5 is a detailed view of the unwinding roll 52, in which the film F is equal to the line speed of the metal strip 51 to the branch pipe 57 fixed to the adjacent winding shaft 55. As shown in FIG. Rewind at speed

Winding the conventional film F to the branch pipe 57 was performed as follows by the film width and speed. When the film width exceeds 250 mm, the branch pipe 57 is attached to the winding shaft 55 with the torque motor, and can be wound directly from the unwinding roll 52. The torque motor is enough to set the winding tension and can be wound up normally even at high speeds over 100 m / min. In the case where the film width is 250 to 200 mm, it is necessary to provide a guide bar between the branch pipe 57 and the unwinding roll 52. The film F is wound on the branch pipe 57 by restraining the movement in the width direction. Torque motors are enough to set winding tensions, but they cannot be wound normally unless speeds below 100 m / min. When the film width is 200 mm or less, it is necessary to further provide a dancer roll that constantly adjusts the tension applied to the film. Although the film F is wound by the branch pipe 57 under the movement of the width direction, the speed cannot be wound normally unless it is a speed of 100 m / min or less.

In the above-described conventional film winding method, when a narrow film, that is, a film of 200 mm or less, is wound at a speed of 100 m / min or more, the air layer 68 is formed between the film and the film because air is wound together with the film. The apparent frictional force (friction coefficient) between the films at the time of winding is falling remarkably. As a result, the film F is easily slid in the lateral direction, and the film F is released from the film roll FR. In addition, since the winding tension (unit tension) of the film F is unclear, there is a drawback that the branch pipe 57 is crushed by the winding pressure of the film F, so that the film F cannot be wound cleanly. Thereby, the film F came out of the film roll FR, and it flowed in the line with a material, and became in-process defect.

For these reasons, in the conventional film winding method described above, when the narrow film F is used, the speed of winding the narrow film F is limited to 100 m / min, so that the cutting of the metal strip is performed. The line speed of the system 50 is also limited to 100 m / min. In addition, since the film F tends to deviate from the film roll FR, the narrow film F cannot be wound up to a large diameter (outer diameter of 200 mm or more), thereby increasing the set-up time by increasing the replacement frequency of the branch pipe 57. This lowered the productivity.

The operator operating the line continued to monitor near the film roll during line operation to prevent in-process defects.

SUMMARY OF THE INVENTION An object of the present invention is to provide a high-speed winding method of a narrow film that can be wound at high speed without winding out of the film and to a large diameter in view of the above-described problems of the prior art.

The present invention for solving the above problems is a method of winding a narrow film on a winding shaft or a support tube fixed thereto at a high speed, wherein the narrow width dimension is smaller than the width of the narrow film at a position immediately before the narrow film is wound on the winding shaft. The branch provides a high-speed winding method of a narrow film, characterized in that the narrow film is wound in a state by a pair of guide means.

Since the narrow film is compressed in the width direction by the guide means, when it is wound around the winding shaft or the support tube fixed thereto, the narrow film is in a corrugated state and a part thereof contacts the lower film. This prevents the formation of a continuous air layer in the width direction and can prevent a decrease in the apparent frictional force (friction coefficient) between the films during winding, thereby suppressing the slide in the width direction of the film.

The invention according to claim 2 is the high-speed winding method of the narrow film according to claim 1, wherein the pair of guide means is relatively movable in the width direction of the narrow film. Accordingly, the spatial dimension formed between the pair of guide means can be adjusted according to the width of the narrow film, and the narrow film can be wound on the winding shaft or the support tube to be in an optimal wrinkle state or curvature.

In the high speed winding method of the narrow film of Claim 1 or 2, the invention of Claim 3 WHEREIN: It winds so that both edges of a narrow film may be lifted up and a center part may become concave.

This prevents the formation of continuous air layers in the width direction, suppresses the slide in the width direction of the film, and supports the narrow film of the inner layer by holding the narrow film of the outer layer. The deviation is small.

1 is a partially enlarged perspective view of an unwinding roll apparatus for implementing a high-speed winding method of a narrow film according to the present invention.

2 shows a pair of pressure guide members fixed to the support shaft, (a) is a front view, and (b) is a right side view thereof.

Fig. 3 is a partial cross-sectional view showing a state in which a narrow film is wound on a branch pipe so that both edges thereof are lifted up and the center part is concave.

4 is a schematic diagram schematically showing a cutting system of a conventional metal strip.

FIG. 5 is a detailed view of the vicinity of the unwinding roll shown in FIG. 4.

6 is a partial cross-sectional view of a film wound by a conventional winding shaft.

Hereinafter, the high-speed winding method of the narrow film according to the present invention will be described in detail according to the illustrated preferred embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an enlarged perspective view of a part of an unwinding roll apparatus for performing a high speed winding method of a narrow film according to the present invention.

The illustrated unwinding roll device 10 includes an unwinding roll shaft 12, a plurality of guide bars 14 and 16, and a support shaft 18 for supporting a pair of pressure guide members 24 and 24. And a winding shaft 20 to which the branch pipe 22 is mounted. At least one of the pair of pressure guide members 24 and 24 is movable relative to the other, and the space width between them is adjustable.

As shown in detail in FIG. 2, the pressure guide member 24 is integrally attached to the support shaft 18 by a welding portion 24a and the normal portion 24a by welding. It consists of the disk-shaped flange 24b couple | bonded normally. As shown in Fig. 2 (b), the flange 24b is connected to the normal portion 24a by deviating from the center, and is guided while pressing the end edge of the narrow film F using the wider inner surface. do. The interval between the pair of pressure guide members 24 and 24 is adjusted by tightening the fixing nut 25 after moving the pressure guide member 24 to a predetermined position. By such a configuration, there is an advantage that the optimum spacing can be selected even for the narrow film F having any width. As a preferable space | interval, 0.5-0.8 W is suitable when the dimension of the width direction of the narrow film F is made into W.

The narrow film F is thus narrowed by a pair of pressure guide members 24 having a space width dimension smaller than the width of the narrow film at a position immediately before being wound on the winding shaft 20 or the branch pipe 22. The film is compressed and wound in that state. Therefore, in the wound state, the narrow film F becomes a wrinkled state, and the one part contacts a lower film. Thereby, the air layer continuous in the width direction is prevented from occurring and the slide of the width direction of the narrow film F is suppressed.

Referring to FIG. 1, a metal strip 11 and a narrow film F are wound together in a roll R state on the unwinding roll shaft 12. When the metal strip 11 is released to the slitter 54 side of Fig. 4, since the narrow film F, which is a liner material, is unwound by the same length, it must be wound by the winding shaft 20. The winding shaft 20 is started at a high speed, and gradually slows down as the narrow film F is wound. In order to make the supply state of the narrow film F to the narrow film roll FR almost constant, the dancer roll 16 may be moved up and down along the long hole 26 facing in the vertical direction.

In addition, as shown in FIG.2 (a), when the curved part 24c is formed in the inside of the flange 24b, the cross section of the narrow film F will become arcuate and wind it around the winding shaft 20 or the branch pipe 22. As shown to FIG. Easier In this manner, when the narrow film F is wound with both edges lifted up and the center portion concave, the formation of a continuous air layer in the width direction is prevented and the slide in the width direction of the film is thereby suppressed. Moreover, since the narrow film F of the inner layer grasps and supports the narrow film F of the outer layer, there is little deviation of the narrow film roll even if it becomes a large diameter. Accordingly, even when the winding speed of the narrow film F, and thus the line speed of the cutting system 50, is 200 m / min, the narrow film F does not deviate from the film roll FR, and the outer diameter is also 150 mm to 350 mm in the conventional art. You can do As a result, the set-up time for replacing the branch pipe 22 is reduced, and the film roll monitoring operation of the operator is also eliminated, and the work efficiency is dramatically improved.

In addition, in the preferred embodiment shown, by setting the winding tension to 0.002 kg / mm (per unit width), it is possible to eliminate the crushing of the paper tube 22, the cut of the film.

In the high-speed winding method of the narrow film according to the present invention, the narrow film is compressed by a pair of guide means having a space width smaller than the width of the narrow film at a position immediately before the narrow film is wound on the winding axis. Because of winding at, when the coil is wound on the winding shaft or fixed to the support tube, it is in a corrugated state and a part thereof contacts the lower film. Thereby, since the formation of the continuous air layer in the width direction can be prevented, and the fall of the apparent frictional force (friction coefficient) between films can be prevented, and it has the advantage that the slide of the width direction of a film can be suppressed.

Thereby, since the stop by the problem in the film winding part is reduced, and the film roll monitoring operation of an operator is reduced, the operation rate of the whole apparatus can be improved from 30% to 50%.

Claims (3)

A method of winding a narrow film on a winding shaft fixed to or on a winding shaft at high speed, the pair of guide means having a spatial dimension smaller than the width of the narrow film at a position immediately before the narrow film is wound on the winding shaft. A high speed winding method of a narrow film, wherein the narrow film is compressed and wound in a state. In the high-speed winding method of the narrow film according to claim 1, the pair of guide means is relatively movable in the width direction of the narrow film, and thus the spatial dimension formed between the pair of guide means is wound. The high speed winding method of the narrow film, it characterized in that it is adjustable according to the width of the narrow film. The high speed winding method of the narrow film of Claim 1 or 2 WHEREIN: The high speed winding method of the narrow film characterized by winding so that both edges of the said narrow film may be raised up and the center part may become concave.