JPH05104141A - Method for double coiling strip and spacer sheet - Google Patents

Abstract

PURPOSE:To provide the method for inserting a spacer sheet between strips without generating troubles of paper wrinkles or a paper cut. CONSTITUTION:In the method for double coiling a strip and a spacer sheet by inserting the spacer sheet between strips while feeding the strip 4 and the spacer sheet at the same time, the double coiling method is that the feeding speed of the spacer sheet is made faster than the strip through pass speed at the beginning time of the spacer sheet inserting start time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically feeding a slip sheet and an interleaving paper at the start of winding when the strip and the interleaving paper are wound in a double manner so that the interleaving paper is not wrinkled or cut. It is a thing.

[0002]

2. Description of the Related Art Heretofore, there has been known a method of inserting interleaving paper into a strip to be wound so as not to generate scratches and to wind the strip and the interleaving paper in double layers. To take up the strip using a belt wrapper, as shown in FIG.
After wrapping around, the drive of the tension reel 1 is temporarily stopped, the belt wrapper 2 is removed from the tension reel 1, and the interleaving paper 3 is discharged from the interleaving paper coil 7 while guiding the paper so as not to cause wrinkles. The interleaving paper 3 was inserted between the wound strip 4 ′ and the feeding strip 4.

According to such a method, the insertion of the interleaving paper 3 is performed by hand, which is too costly and time consuming, and the interleaving paper 3 is inserted into the strip portion 4'wound around the tension reel 1 first. Co-rubbing scratches occurred from the place where it was not, and this part was wasted because it could not be used as a plate material.

Therefore, in recent years, a method has been proposed in which the interleaving paper and the strip are simultaneously pressed down by a pinch roll and the strip and the interleaving paper are fed at the same speed until they are wound around a tension reel (for example, Japanese Patent Laid-Open No. 57-168723). Japanese Patent Laid-Open No. 1-133611, etc.).

[0005]

However, automatically feeding a soft, light interleaving paper and a hard, heavy strip to a pinch roll at the same speed requires extremely difficult control,
If the interleaf paper feed speed and the strip threading speed are not synchronized, such as when the flatness of the strip is poor, the interleaf paper may run out of paper if it is fed into the pinch rolls, or even if it does not run out. Insertion causes paper wrinkles,
When the interleaving paper in which the paper wrinkles have been generated is wound around the strip and the double winding, the paper wrinkle pattern is transferred to the surface of the strip and becomes a scratch, which cannot be used as a plate material for processing and becomes a defective product. Even if the method of pressing the interleaving paper and the strip at the same time with the pinch roll and winding them on the tension reel is applied to the winding method using the belt wrapper, the same troubles cannot be avoided.

[0006]

Therefore, the present inventors have
As a result of research conducted to develop a method of automatically winding a strip and interleaving paper in double without causing troubles such as paper wrinkles and paper breakage when inserting interleaving paper, the front end of the interleaving paper is sent. We have found that if the feed speed of the interleaving paper is set higher than the feed speed of the strip immediately before coming into contact with the coming strip, problems such as paper wrinkles and paper breakage will not occur at the tip of the interleaving paper that is wound between the strips. is there.

The present invention has been made in view of the above finding, and in the method of inserting the interleaving paper between the strips while simultaneously feeding the strip and the interleaving paper and double winding the strip and the interleaving paper. The method is characterized in that the feeding speed of the interleaving paper at the start of inserting the paper is faster than the sheet passing speed of the strip. Further, in the double winding method using the belt wrapper and the tension reel, the tip of the strip is suspended. The method is characterized in that the feeding speed of the interleaving paper is made faster than the strip passing speed immediately before the contact with the lower end of the interleaving paper.

The double winding method of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic view showing the arrangement of the apparatus used in the method for doubly winding the strip and the interleaving paper according to the present invention,
2 is a schematic view showing a state before the strip is fed into the belt wrapper in the apparatus of FIG. 1, FIG. 3 is a schematic view showing a state in which the tip of the strip is hooked with interleaving paper in the apparatus of FIG. 1, and FIG. FIG. 6 is a schematic view showing another inserting state of interleaving paper.

In order to carry out the present invention, the apparatus is provided with a belt wrapper 2 having a claw 8 movably in the horizontal direction with respect to the tension reel 1, and a protector 9 for preventing paper breakage is provided on the guide side of the claw 8. Installed.

On the other hand, a support roll 5 and a guide table 6 are provided on the strip supply side, and the guide table 6 can be agitated so that the strip 4 can be guided in the direction of the tension reel 1.

A support base 13 is attached above the belt wrapper 2 and the support roll 5, and interleaf paper coils 7, 7'and a coil diameter correction sensor 12 are attached above the support base 13. Support 13
An expand roll 10 horizontally movable by an air cylinder 14 and a cutter 11 horizontally movable by an air cylinder 15 are attached to the lower side.

In order to wind the strip and the interleaving paper into a double roll by the method of the present invention using such an apparatus, first, the interleaving paper 3 is unwound from the interleaving paper coil 7 and is placed between the tension reel 1 and the guide table 6. Hang on.

At this time, the payout amount of the interleaf sheet 3 is controlled by the coil diameter correcting sensor 12 and is stopped at the position shown in FIG.

When the guide table 6 is raised in such a state and the tension reel 1 is wrapped with the belt wrapper 2 at the same time, the state shown in FIG. 2 is obtained. Since the protector 9 is attached to the claw 8 attached to the belt wrapper 1, even if the claw 8 comes into contact with the interleaving paper 3, it does not cause a paper break.

In the state shown in FIG. 2, when the strip 4 is passed through, the tip of the strip 4 comes into contact with the tip of the guide table 6 at a position slightly away from the tip of the slip sheet 3 (hereinafter referred to as the tip). , As shown in FIG.
The leading end of the strip 4 hooks the leading end of the interleaving paper 3 and is supplied to the belt wrapper 2 to form a double winding coil of the strip 4 and the interleaving paper 3.

At this time, a feature of the present invention is that the feeding speed of the interleaving paper 3 is made slightly higher than the passing speed of the strip 4, and the leading end of the strip 4 hooks the leading end portion of the interleaving paper 3 to pass it. It is necessary that the interleaving paper causes slack even when it is placed, as shown by the solid line 3 in FIG.

As shown by the dotted line 3'in FIG. 3, if there is no slack in the interleaving paper, the feeding speed of the interleaving paper and the strip passing speed should be perfectly synchronized due to the difference in properties such as specific gravity and hardness. Causes paper breaks and paper wrinkles from difficult places.

The feeding speed of the slip sheet is controlled by using the diameter of the slip sheet coil 7 measured by the coil diameter correcting sensor 12.

After the strip 4 and the interleaving paper 3 are wound around the tension reel 1 to some extent, the belt wrapper 2
Is retracted, and then the interleaving paper 3 is tensioned.

The interleaving paper tension control is controlled by a motor (not shown) so as to be constant by the coil diameter correction sensor 12.
Torque control is performed. Further, the expand roll 10 is pressed against the interleaving paper 3 by the air cylinder 14 to prevent paper wrinkles.

As the expand roll 10, a known expand roll utilizing expansion and contraction of a rubber band is used in order to prevent paper wrinkling.

In this way, when the strip 4 and the interleaving paper 3 are double-wound around the tension reel 1 and the tail end (not shown) of the strip 4 comes, the cutter 11 is moved to the air cylinder according to the tail end. 15 is operated and the interleaving paper 3 is cut. This cutting method is exactly the same as the conventional cutting method.

As described above, the method of the present invention is applied when paper wrinkles and paper breakage at the start of winding are most likely to occur.
Although the method for preventing the wrinkles and the paper breakage of the interleaving paper has been described in detail, the method of the present invention can be similarly applied to the case where the interleaving paper is lost in the middle and is reinserted as shown in FIG. Even in that case, the interleaving paper 3 can be smoothly inserted in the middle by sending out the interleaving paper 3 slightly faster than the strip passing speed.

In the present invention, the interleaf paper feed speed v
When g is made equal to the strip passing speed Vs, troubles such as paper breakage occur. Therefore, it is necessary to set Vs <vg. However, if the interleaf feeding speed vg is higher than 2Vs, the interleaf slip becomes large. It is too much to prevent the occurrence of paper wrinkles.

Therefore, it is preferable that the feeding speed vg of the interleaving paper has a relationship of Vs <vg ≦ 2Vs with respect to the strip passing speed Vs.

[0027]

EXAMPLE A stainless steel strip having a width of 1020 mm and a thickness of 5.0 mm was fed at a strip speed of 0.25 m / sec as shown in FIGS. 2 and 3, while a width of 1020 was supplied.
mm, thickness: 0.077 mm, kraft paper interleaving paper was fed at a delivery speed of 0.28 m / sec, and the stainless steel strip and interleaving paper were automatically wound double by a belt wrapper and a tension reel. As a result, the interleaving paper was able to be double wound without causing paper wrinkles and paper breakage.

On the other hand, for comparison, when the above-mentioned interleaving paper was sent out at the same speed as the passage speed of the stainless steel strip: 0.25 m / sec, the stainless steel strip and the interleaving paper were automatically wound up in double. , Paper has run out on the slip sheet.

[0029]

As described above, the present invention is a method for automatically double-winding a strip and an interleaving paper, in which the interleaving paper can be automatically double-wound without trouble such as paper wrinkles and paper breakage. In particular, it has a great effect on winding the surface-finished strip.

[Brief description of drawings]

FIG. 1 is a schematic view showing the arrangement of devices used in the double winding method for strips and slip sheets of the present invention.

FIG. 2 is a schematic view showing a state before the strip is fed into the belt wrapper in the apparatus of FIG.

FIG. 3 is a schematic view showing a state in which the tip of the strip hooks the interleaving paper in the apparatus of FIG.

FIG. 4 is a schematic view showing another inserting state of the slip sheet.

FIG. 5 is a schematic view showing a conventional double winding method for a strip and a slip sheet.

[Explanation of symbols]

 1 Tension Reel 2 Belt Wrapper 3 Interleaf Paper 4 Strip 5 Support Roll 6 Guide Table 7 Interleaf Paper Coil 8 Claw 9 Protector 10 Expanding Roll 11 Cutter 12 Coil Diameter Correction Sensor 13 Support Base 14 Air Cylinder 15 Air Cylinder

Claims (2)

[Claims] 1. A method of inserting a slip sheet between the strips while simultaneously feeding the strip and the slip sheet, and winding the strip and the slip sheet in a double manner. Double winding method for strip and interleaving paper, which is characterized in that the speed is higher than the plate speed. 2. A belt wrapper is set on a tension reel, and the interleaving paper is sent out so as to hang between the tension reel and the tip of the strip, and the tip of the hanging interleaving paper is hooked at the tip of the strip to the belt wrapper. In a method of supplying and winding on a tension reel and winding the strip and the interleaving paper doubly, the feeding speed of the interleaving paper is set to the speed of passing the strip just before hooking the leading end of the interleaving paper where the strip tip is hanging. A double winding method for strip and interleaving paper, characterized in that the speed is faster than the plate speed.