JP2970754B2 - Slit coil binding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding method for fixing a slit coil formed by cutting a wide base material coil into a plurality of strips on a slitter line and winding the coil into a coil shape so that the slit coil does not collapse.

[0002]

2. Description of the Related Art Generally, a metal strip supplied as a material of various metal products such as a metal pipe, a curtain rail, a metal molding or a flat bar is usually supplied as a slit coil wound in a coil shape. This slit coil is formed by cutting a wide base material coil into a multiplicity of strips using a cutter blade combined with a width dimension desired by a customer in a normal slitter line, and then, as shown in FIG. It is manufactured by winding up a predetermined amount. The take-up core C is provided with a separator SP as shown in the figure. The separator SP allows each slit coil S to be neatly wound up with a fixed gap therebetween and the ears aligned.

The plurality of slit coils S wound up in this manner are usually taken out of the winding core C after taping the end of the winding as shown in FIG. Thereafter, as shown in FIG. 5, each slit coil S was band-fixed G and firmly fixed so as not to collapse, and supplied to a receiver side for manufacturing a metal tube or the like using this as a material.

[0004]

As described above, slit coils of various widths are manufactured on the supply side and supplied to the receiver side according to the request of the customer (recipient side). Conventionally, the narrow slit coil has the following problems.

[0005] First, for a slit coil having a width of, for example, 30 mm or less, the winding is more likely to collapse as the winding diameter is larger because the width is narrower. Diameter) was at most about 800 mm to 900 mm.
For this reason, if it is intended to obtain the same winding length as a wide one having a width of 50 mm or more, it is inevitably dispersed and wound up in a large number of slit coils. Not only is it inconvenient, but also on the receiving side, there have been problems such as a decrease in work efficiency and a decrease in product yield.

That is, on the receiver side, for example, a plurality of slit coils are set at a time on a pay-off reel of a tube making machine for manufacturing a metal tube, and the slit coils are unwound one by one and used as a material. After use, the end and the beginning of the next slit coil are connected by welding, and a long metal tube is manufactured by continuously using a plurality of slit coils, and this is cut into a predetermined length. To produce a metal tube as a product. On the receiver side, the welding operation for connecting the ends of the slit coil needs to be performed more frequently as the winding length of the slit coil is shorter, so that the work efficiency is reduced,
In addition, there is a problem that the yield of the product is not good because the metal tube including the welded portion has no commercial value and is discarded instead of being shipped as a product.

Second, because of its narrow width, it cannot stand alone by itself (as shown in FIG. 5, its peripheral surface must be grounded to the floor F to stand up). Both sides were very inconvenient to handle or transport. FIG. 5 shows a state in which each of the three slit coils S is made to stand alone, but the width thereof is 3
When the width is less than 0 mm, the standing posture is unstable and fluctuates, so that it was extremely difficult to actually stand alone.

The present invention has been made in order to solve these conventional problems. Even if the slit coil has a narrow width, it can be wound up to a large diameter without worrying of winding collapse and can be made independent. It is an object of the present invention to provide a method of binding slit coils, which can improve the convenience of handling and transport on the supply side and the receiver side and improve the work efficiency or the product yield on the receiver side.

[0009]

For this reason, the binding method according to claim 1 is a binding method in which n slit coils S1 to Sn are integrally fixed and can be unwound one by one. The first binding bands B1 to Bn are prepared, and the first slit coil S1 is bound by the first binding band B1.
And the first and second slit coils S
1 and S2, and a third to third binding band B3.
The slit coils S1 to S3 are bound, and this operation is repeated to bind all the slit coils S1 to Sn with the nth binding band Bn.

According to this binding method, the slit coils S1 to Sn are bound by the binding bands B1 to Bn. Therefore, even if each of the slit coils is a narrow slit coil, it can be wound up to a large diameter without fear of collapse. it can. For example, a conventional method of taping the end portions and individually binding narrow slit coils one by one (see FIG. 5)
Then, in order to take into account the danger of collapse, it is possible to wind up only up to about 800 mm, but according to the above-described binding method, even the same narrow slit coil of about 30 mm has a width of about 1400 mm. Can be safely wound up.

As described above, even a narrow slit coil can be wound up to a large diameter and supplied.
On the receiver side, the frequency of welding between the ends of each slit coil can be reduced, and thus the efficiency of work such as metal tube production can be improved, and the number of welding points can be reduced, thereby improving the product yield. it can.

The binding bands Bn, Bn-1,..., B2
, B1 in order, so that a plurality of slit coils S1 to Sn are changed to Sn, Sn-1,..., S2, S1.
Can be unbound one by one in this order, and the other slit coils S can be left in the bound state, so that the slit coils S other than during unwinding can be prevented from being broken. Accordingly, trouble during the unwinding operation can be prevented, and the efficiency of various manufacturing processes can be improved.

Further, even if each of the slit coils S1 to Sn cannot be self-supported because they are narrow, the slit coils S1 to Sn are integrated by the binding bands B1 to Bn and become wide, so that they can be self-supported. And the handling of the receiver can be made extremely easy.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. As shown in the drawing, the present embodiment exemplifies a case in which six slit coils S1 to S6 are bound. In this case, six binding bands B1 to B6
And two auxiliary bands B0 are prepared. The binding band B (B1 to B6, B0) has been conventionally used for packing wooden boxes and the like, and has a flexible metal band body Ba and a ring body for fixing the band body Ba. A fixture Bb is provided.

Now, the six slit coils S1 to S6 wound on the winding core C are each taped at their ends to temporarily stop the winding state, and then the conveying means such as a crane is used. 6 are removed from the winding core C at once. The detached slit coil S is set on a dedicated work table provided with a means for rotating the slit coil S while holding it alone so that it does not fall down, and is bound in the following procedure. First, the slit coil S1 is bound. That is, two substantially opposite circumferential positions of the slit coil S1 are bound by the binding bands B1 and B1. As shown in the drawing, the binding is performed by stretching the binding band body Ba around the inner and outer sides of the slit coil S1 and pulling it firmly, and fixing this state with the fixture Bb, thereby winding up the slit coil S1. The state is fixed.

Next, the slit coil S2 is superimposed on the slit coil S1 in the above-mentioned binding state, and both slit coils S1, S2 are bound by two binding bands B2, B2 at two locations which are also substantially opposite in the circumferential direction. . Thus, the slit coil S2 is also fixed in the wound state.

Next, the slit coil S3 is superimposed on the slit coil S2, and the three slit coils S1
To S3 are bound by binding bands B3, B3.
Hereinafter, similarly, every time the slit coil S is superposed one by one, the entirety including the slit coil S already bound is bound by the binding bands B, B. Such binding is performed at two locations that are substantially opposed to each other in the circumferential direction.

After the six slit coils S1 to S6 are bound by the total of twelve binding bands B as described above, if the whole is reinforced and bound by the four auxiliary bands B0, the slits are reduced. The binding of the coils S1 to S6 is completed.

The slit coils S1 to S6 bound on the supply side of the slit coil in this way are conveyed to the receiver side, and the receiver side sets six strips integrally on a payoff reel of, for example, a tube making machine. 4 when set
The auxiliary band B0 of the book is cut and removed.

In the step of unwinding the six slit coils S1 to S6 as a raw material, first, the binding band B6 is cut and removed. As a result, only the slit coil S6 that has been finally bound on the supply side is unbound and can be unwound, but the other slit coils S1 to S5
Are still tightly bound by the binding bands B1 to B5. For this reason, the slit coil S6
During the unwinding of the other slit coils S1 to S1
5 does not collapse.

When the unwinding of the slit coil S6 is completed, the binding band B5 is cut and removed. This allows
The slit coil S5 can be unwound, and if the end of the slit coil S5 is connected to the end of the slit coil S6, the slit coil S5 can be unwound continuously without interruption. On the other hand, even at this stage, other slit coils S1
Since S4 is bound by the binding bands B1 to B4, it does not collapse due to vibration or the like during unwinding of the slit coil S5.

Hereinafter, similarly, one slit coil S
By cutting and removing the next binding band B at the stage where the unwinding is completed, it is possible to continuously unwind one slit coil S unbound by this,
The other slit coils S can still be kept in the binding state.

At the stage where the unwinding of the slit coil S2 is completed, the binding band B1 is cut and removed, so that the last slit coil S1 can be unwound. At this stage, the slit coil S1 is not bound, but by connecting its end to the last end of the slit coil S2 and unwinding, an appropriate tension acts on the slit coil S1 by unwinding. So it won't collapse.

According to the above-described binding method, each slit coil S is firmly fixed by the binding band B, so that even if it is wound up greatly, it does not collapse. For example, when a stainless steel slit coil having a plate thickness of 1 mm and a coil width of 20 mm is wound up as shown in FIG.
0 mm (winding length of about 1340 m) can be wound up, whereas the conventional binding method is 800 mm
It could only be wound up to about 900 mm (winding length about 440 m).

As described above, since the length of each slit coil S can be greatly increased (about three times as long as the conventional one), the receiving side that manufactures a metal tube or the like using this as a material can be used. The frequency of the work of welding the ends of the two slit coils S, S can be reduced,
As a result, the work efficiency of manufacturing a metal tube or the like can be improved. In addition, the number of welds, that is, discarded parts is reduced, so that the product yield can be improved.

Further, even if each slit coil S is narrow and cannot stand alone by itself, a plurality of slit coils S (6 in this embodiment).
) Are firmly bound in a superposed state by the binding band B, so that they can be made to stand independently as a single body, and thus the handling thereof becomes easy.

In addition, the binding method according to the present invention can be carried out at a low cost because the binding band B used conventionally is used as it is, and the handling is extremely simple, so that no skill is required. .

The embodiment described above can be implemented with various modifications. For example, the number of strips of the slit coil S to be bound is arbitrary, and is not limited to the six strips illustrated. What is necessary is just to prepare the required number of binding bands B according to the number of strips to be bound.

Further, the binding band B is not limited to the illustrated form, but may be any other string-like one that can be easily bound and cut and removed. Further, if the slit coils S1 to S6 are sufficiently firmly bound only by the binding by the binding bands B1 to B6, the binding is not necessarily required by the auxiliary band B0.

Further, the binding positions in which the six binding bands B1 to B6 constitute one set are illustrated at two locations that are substantially opposed in the circumferential direction of the slit coil S, but may be provided at three or more locations. May be one place.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention;
It is the whole slit coil perspective view.

FIG. 2 is a diagram showing a comparison between a slit coil wound by a method according to the present embodiment and a slit coil wound by a conventional method.

FIG. 3 is a perspective view showing a state in which a plurality of slit coils are wound on a winding core.

FIG. 4 is a perspective view showing a state in which the end of each slit coil is temporarily taped and fixed after winding is completed.

FIG. 5 is a perspective view showing a state where a slit coil is removed from a winding core and banding is performed.

[Explanation of symbols]

 S (S1 to S6): slit coil B (B1 to B6): binding band B0: auxiliary band Ba: band body, Bb: fixing tool C: winding core, SP: separator T: taping, G: banding

Claims (1)

(57) [Claims] 1. A bundling method in which n slit coils S1 to Sn are united and unwound one by one, wherein n bundling bands B1 to Bn are prepared and a first bundling band is provided. B1 binds the first slit coil S1 and second binding band B2 binds the first and second slit coils S1 and S1,.
S2 are bound, and the first to third slit coils S1 to S3 are bound by a third binding band B3. This is repeated thereafter, and all slit coils S1 are bound by the n-th binding band Bn.
A method for binding slit coils, comprising binding 1 to Sn.