JPH084166Y2 - Multi-strand metal band tensioning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is capable of preventing meandering of each metal strip and imparting a uniform winding tension when the metal strip cut into a plurality of lines is applied with tension and wound up. The present invention relates to a tensioning device for a plurality of metal strips, which enables the metal strips to be neatly aligned and accurately wound on a tension reel without meandering and to obtain a high-quality coil product.

[Conventional technology]

In a slitter line for manufacturing a plurality of metal strip coil products, generally, as shown in FIG. 4, a wide metal strip S fed from a payoff reel 3 first passes through an entrance side looping pit 4 and is beautifully rolled. It is cut into a plurality of lines by a slitter 5 of a drive cut system that can be cut, and then wound on a tension reel 7 while being tensioned by a tension imparting device 1'through an exit side looping pit 6. A plurality of narrow metal strip coil products are manufactured.

As the tension applying device 1'in the above process, usually a tension pad or a belt bridle (non-driving) utilizing the frictional force of the endless belt is used.
However, in any tension applying device 1 ',
There is a problem that the cut metal strip S ′ meanders when being wound due to a difference in plate thickness in the width direction, unevenness, unevenness of shape, and the like.

For this reason, conventionally, a separator guide (a round bar or a circular tube is provided in the central hole of a plurality of disc-shaped guide plates to prevent the meandering by contacting the edge of each metal strip S ′ cut in the main part of the line. (A type that is formed by skewing and adjusting the spacing between each guide plate according to the width of the metal strip to be cut and fixing each guide plate is often used)
It is said that the tensioning device 1'for pressing the cut metal strip S'is divided into a plurality of parts and the rolling force is adjusted for each metal strip S'to suppress and prevent the meandering. The method and the device have been adopted.

[Problems to be solved by the device]

However, the former method of providing a separator guide that abuts against the edge of each cut metal strip S'to suppress the meandering has little influence on the tension of each metal strip S ', but the meandering prevention is not sufficient. Especially, in the case of a thin metal strip S'having a plate thickness of 0.3 mm or less, the edge of the cut metal strip S'abuts the guide to cause ear breakage, resulting in a marked deterioration in quality or, in the worst case, commercialization. There was a problem that it became impossible (waste).

On the other hand, in the latter case, the tension applying device 1'having both a meandering preventing mechanism and a tension applying mechanism has a merit that the device becomes compact, but in addition to applying the tension required for winding, each metal strip S is further provided. In order to surely prevent the meandering of ', a difference occurs in the pressing force of each pad to each metal strip S', resulting in a difference in the tension of each metal strip S '. Due to the difference in elongation, the metal band S'is different for each coil.
The length of the will be greatly different, and especially the plate thickness
In the case of a thin metal strip S'having a thickness of 0.3 mm or less, there is a problem that the tension becomes large and cracks occur, or in extreme cases, plate breakage occurs and winding cannot be performed.

Therefore, the problem to be solved by the present invention is to prevent the meandering reliably while applying a uniform tension which is not excessive, and to wind the metal strip neatly and neatly without wobbling of the cutting surface. An object of the present invention is to provide a tensioning device for a multi-strand metal strip capable of producing a high-quality metal strip coil product.

[Means for solving the problem]

As a result of various studies to solve such a problem, the present inventor did not divide the main body of the tension applying device itself in the width direction so as to be able to adjust the pressing force to the metal band, but rather A plurality of metal strips, each of which is formed on the metal strip insertion side and is divided into a plurality of metal strips in the width direction of the metal strip, and a member for individually adjusting the rolling force of the metal strip compression pad. It was clarified that the above-mentioned problems can be solved by providing the meandering prevention device, and the present invention was completed.

Hereinafter, one of the tension applying devices for a plurality of metal strips according to the present invention will be described.
Examples will be described with reference to the drawings.

FIG. 1 is a schematic explanatory view of an embodiment of a tension applying device for a multiple strip metal band according to the present invention, FIG. 2 is an enlarged explanatory view of a meandering prevention device portion, and FIG. 3 is a front explanatory view of FIG. is there.

In the drawing, reference numeral 1 indicates the upper and lower endless belts, which are respectively crimped by upper and lower sliders, to the front and back surfaces of a metal strip S'which is cut into a plurality of lines by a slitter. It is a belt bridle type tension applying device main body to which tension is applied. The system of the tension applying device main body 1 in the present invention is not particularly limited to this belt bridle system, and may be a tension pad system. Two
Is a meandering preventive device attached to the metal band insertion side near the tension applying device main body 1, and is a metal band S'on both sides of a plurality of metal bands S'which are cut and run. Of the cylinders 2a disposed further outside of the cylinders 2a, each of which has an H-shaped cross section which is attached parallel to the running surface of each metal strip S ', and has a U-shaped cross section on the side facing each metal strip S'. Auxiliary pad holding plate having character-shaped guide portion
2b and a core material such as wood which is divided into a plurality of metal strips S'in the width direction and is guided by the guide portion of the auxiliary pad holding plate 2b. A metal band pressing auxiliary pad 2c, which is arranged on the side of the metal band S'and is composed of a metal band abutting member such as a felt which contacts the metal band S ', and a tip of which is screwed to the auxiliary plate holding plate 2b. The parts are fixed to a plurality of core members of the metal band pressing auxiliary pads 2c, respectively, and the pressing force to each metal band S'of the metal band pressing auxiliary pads 2c is individually adjusted with the auxiliary plate holding plate 2b as a base point. Each metal strip that is cut into a plurality of strips and runs between the upper movable part that is composed of a pressing force adjusting member 2d such as a push-in bolt and the auxiliary metal band pressing pad 2c of the upper movable part. A lower fixing portion composed of a fixing pad 2e for holding S ' And Luo Narutsu. The meandering prevention device 2 in which the upper movable portion and the lower fixed portion configured as described above are interchanged may be configured. In addition, the fixed pad 2e of the lower fixed portion is an auxiliary pad for metal band reduction of the upper movable portion.
Although it may be configured in the same manner as 2c, each member serving as the core material of the metal band abutting material such as felt individually adjusts the pressing force to each metal band S'of the metal band pressing auxiliary pad 2c. It is preferable that the air bag is filled with air so that the pressing force to each metal strip S ′ can be uniformly maintained when it is not necessary.

[Action]

In the tension applying device for a plurality of metal strips having the above-described structure, the wide metal strip S is fed from the payoff reel 3 first through the entry side looping pit 4 and then by the slitter 5 as in FIG. The metal strip S ′ that has been cut into a plurality of lines and then cut into a plurality of lines is prevented from meandering by the meandering prevention device 2 through the exit side looping pit 6 and is provided near the meandering prevention device 2. A plurality of narrow metal strip coil products are manufactured by being wound around the tension reel 7 while tension is applied by the tension applying device main body 1.

That is, the metal strip S ′ cut into a plurality of lines by the slitter 5 is a cylinder of the upper movable part of the meandering preventive device 2.
The metal pad pressure reducing auxiliary pad 2c which is pressed down by the auxiliary pad holding plate 2b by 2a and the fixing pad 2e of the lower fixing portion prevent the fluttering. The tension applying device main body 1 provided
At this time, the metal strip S ′ cut by the cause of the difference in plate thickness in the width direction of the cut metal strip S ′, unevenness, uneven shape, etc. is wound up on the tension reel 7. Since the phenomenon of meandering occurs, when the meandering occurs, the metal strip pressing auxiliary pad 2c of the upper movable portion, which is in contact with the metal strip S'where the meandering occurs, is the metal strip S'on the meandering side.
More than half of the plate width is in contact with the auxiliary pad holding plate 2b by operating the pressing force adjusting member 2d of the auxiliary metal band pressing pad 2c.
The meandering can be prevented by adjusting so as to increase the pressing force of the metal band pressing auxiliary pad 2c on the metal band S'from the base point. In this operation, the pressing force of the auxiliary metal band pressing pad 2c to the metal band S'is about 1/5 to 1/10 of the pressing force in the winding tension imparting device 1, and the meandering of the metal band S'is sufficiently prevented. Therefore, the metal strip S'has no adverse effect such as a flaw or a plate break.

Although the plate thickness of the metal strip S'to which the device of the present invention can be applied is not limited, in the device of the present invention, since unreasonable tension is not applied to the metal band S ', cracks and plate breakage are particularly likely to occur, and ear tearing also occurs. It is most suitable for the thin metal strip S'of which the thickness is easily 0.3 mm or less. In addition, the number of cut lines is a relatively small number of 2 to 4 lines where the meandering is likely to occur due to the remarkable effects of the plate thickness difference in the width direction of the cut metal strip S ′, unevenness, shape irregularity and the like. Suitable for metal strips of.

[Effect of device]

As described in detail above, the tension applying device for a multiple strip metal strip according to the present invention holds the auxiliary strip for metal strip reduction having the core material divided into a plurality of strips in the width direction of the multiple strips. A plurality of strips are cut between the upper movable part, which is composed of a pressing force adjusting member that individually adjusts the pressing force to each metal strip with the plate as the base point, and the metal strip pressing auxiliary pad of this upper movable part. After cutting, a meandering prevention device consisting of a lower fixing part composed of a fixing pad that holds each traveling metal band is attached to the metal band insertion side near the tension applying device main body. Since the meandering of each metal strip is surely prevented and the tension is made uniform, the winding tension when wound on the tension reel becomes more uniform, resulting in various troubles in the winding process, namely, Caused by winding misalignment and metal band elongation The problems such as uneven winding amount and winding shape, especially in thin metal bands, cracks and in extreme cases, plate breakage and unwinding are eliminated, and good winding quality is achieved. It becomes possible to manufacture coil products, and their practical value is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a tension applying device for a plurality of metal strips according to the present invention, FIG. 2 is an enlarged explanatory view of a meandering prevention device portion, FIG. 3 is a front explanatory view of FIG. 2, and FIG. It is a manufacturing process schematic diagram of the coil product which used the conventional tension | tensile_strength provision apparatus. In the drawing 1 …… The tension applying device main body of the present invention 1 ′ …… Conventional tension applying device 2 …… Meandering preventive device 2a …… Cylinder 2b …… Auxiliary pad holding plate 2c …… Auxiliary pad for metal strip pressing 2d …… Rolling force adjusting member 2e …… Fixed pad 3 …… Pay-off reel 4 …… Incoming looping pit 5 …… Slitter 6 …… Outgoing looping pit 7 …… Tension reel S …… Wide metal strip S '… … Metal strips cut into multiple strips

Claims (2)

[Scope of utility model registration request] 1. A metal strip (S) is cut into a plurality of metal strips (S '), and then tension is applied to each of the cut metal strips (S') and the metal strip (S ') is wound around a tension reel (7). In the tension applying device for a plurality of metal strips, each metal strip (at the tip of the piston rod of the cylinder (2a) arranged outside the metal strips (S ') on both sides of the plurality of metal strips (S') ( Auxiliary pad holding plate (2b) mounted parallel to the traveling surface of S ') and a plurality of metal strips (S') divided in the width direction of the auxiliary pad holding plate (2b). A metal band pressing auxiliary pad comprising a core member guided by the metal core and a metal band abutting member arranged on the metal band (S ') side of the plurality of core members and contacting the metal band (S'). (2c) and each metal of the auxiliary pad (2c) for metal band reduction with the auxiliary pad holding plate (2b) as a base point Between the upper movable part, which is composed of the rolling force adjusting member (2d) for individually adjusting the rolling force to the band (S '), and the metal band rolling auxiliary pad (2c) of the upper movable part. A meandering prevention device (2) consisting of a lower fixing part composed of a fixing pad (2e) for sandwiching a traveling metal strip (S ') cut into a plurality of lines is provided with a tension applying device main body (1). A tension applying device for a plurality of metal strips, which is attached to a metal strip insertion side in the vicinity. 2. A meandering prevention device (2) is provided with a fixing pad (2e) of a lower fixing part which is arranged on the side of a core member made of an air bag and the metal band (S ') of the core member. ) And a metal strip abutting member that is in contact with the metal strip abutting member.