JPH0611703Y2 - Vertical slitting line for metallic strips - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is directed to a vertical strip for a metal strip, which is formed by dividing a wide metal strip coil into slits with a slitter to form strips. It relates to the type slitter line.

[Conventional technology]

FIG. 5 is a schematic view of a conventional arrangement of a slitter line using a pull-cut slitter as viewed from the side.
(1) is a floor surface, (2) is an uncoiler having a braking torque generator equipped with a wide metallic strip coil, (4) is a drawn metallic strip, and (5) is metallic without power. By pulling the strip (4) and applying it to the slitter knife, the metallic strip (4) is divided and cut, and due to the cutting resistance acting on the outer circumference of the disc-shaped slitter knife,
A slitter that rotates a slitter knife to continuously divide and cut the metal strip (4), (6) is a plurality of divided strips, and (7) is a plurality of rolled strips. A recoiler wound by a body, (8) is a rolled strip coil. As seen in FIG. 5, they are arranged laterally.

FIG. 6 is a schematic view of a conventional arrangement of a slitter line using a drive cut slitter as viewed from the side.
(9) is a shear for statically cutting the metal strip (4) to a required length, and (10) is a slitter (5 ') having power while statically cutting the strip (4) with a (9) shear. ), A loop for storing the metallic strip (4) to continue the continuous cutting, the metallic strip (4) has a thickness deviation in the width direction as shown in FIG. Since the center strip (6 ') is thicker than the end strips (6 ") of the strips (6) formed, there is a difference in the winding diameter when wound by the recoiler (7) having one winding cylinder. Since the winding length is different, there is slack in the strip with the strip (6), but (13) is a loop to absorb this slack, and (14) is tension on the strip (6). (15) is a tension applying device for applying the metal strip (4) drawn out from the wide strip coil (3) to the slitter (5 '). In written allowed or strakes (6) tip through plate for relief table for Maseru bite the tensioning device (14) of, shows a state defeated in FIG. 6
As can be seen in the figure, the lines are arranged laterally.

[Problems to be solved by the invention]

Recently, high-grade materials and ultra-thin wide strips have been developed and are in great demand, but these strips also require a technique different from the split cutting of ordinary or normal thickness strips. Therefore, it is technically impossible to divide and cut everything with high quality by one set of slitter lines, and it is demanded to provide a dedicated slitter line adapted to each slitter line. In addition, the slitter line is often installed in the suburbs of large and medium-sized cities where there is a great demand for strips, but the conventional slitter line requires a considerable installation area and requires a lot of time and cost for installation and movement. Therefore, in combination with soaring land prices in large and medium-sized cities and the need to install a dedicated line that suits the types of strips mentioned above, a package type slitting line that requires a small installation area and is easy to install and move is required. ing. Further, one example in which a dedicated line is required for dividing and cutting the high-grade strip is as follows. In other words, with mirror-finished steel or soft non-ferrous metal strips, patterns or scratches are generated due to the sliding of each other or sliding under low surface pressure with objects of different materials, which hinders post-processing and use. There are things to do. Therefore, when the strip is pulled out from the wide strip coil, if tension is inadvertently applied, mutual slip between the winding layers may occur in the coil and a pattern may be generated. Further, a type utilizing sliding friction with a strip plate to give tension for winding the strip cannot be used. Further, if the strip is wound by a single take-up cylinder, a difference in the winding diameter due to the difference in the thickness of the strip, and thus a tension difference is generated, and there is a variation in cutting quality in the pull-cut slitter line. Out. As described above, in the conventional slitter line, the slitter line itself is made compact in accordance with the recent demand of the slitter industry, that is, the rise in land prices, and a compact dedicated slitter that cuts high-quality materials and ultra-thin strips with high quality. It is not possible to deal with such things as packaging the line so that it can be installed, moved, and removed quickly according to needs.

The present invention has been made in view of the above problems in order to solve the problems, and the purpose thereof is to wind each item by a recoiler including a split winding cylinder. It is possible to wind each strip without tension or scratches on the surface without causing loops due to the difference in plate thickness, and by doing so, the slitter line equipment can be used. An object of the present invention is to provide a vertical slitter line for metal strips, which can be arranged in the vertical direction and can be packaged and whose installation area can be greatly reduced.

[Means for solving problems]

In order to achieve the above object, the present invention arranges an uncoiler and a recoiler vertically substantially vertically, and arranges a slitter for dividing and cutting a metal strip into a plurality of strips in the middle, and the recoiler is It is configured such that a plurality of divided winding cylinders that are divided according to the width and the number of the divided strips and that can rotate independently of each other are mounted on one winding shaft.

[Action]

The present invention having the above-mentioned structure operates as follows.

That is, the wide metal strip coil wound around the uncoiler arranged above is unwound one after another, moves downward, and is divided into a plurality of strips by the slitter arranged below.

The divided and cut strips are sequentially moved downward and wound up on a recoiler having a split winding drum arranged below the slitter. Each strip is wound around each split winding drum of the recoiler.

In the recoiler, one winding shaft rotates, and each divided winding drum mounted on this also rotates due to friction with the winding shaft, and each divided winding drum winds each strip. Along with the rotation of each divided winding cylinder, a winding tension is generated on each strip wound around the cylinder.

In this case, each strip has a thickness deviation, and in general, the strip on the center side is thicker than the strips on both ends.
When a difference in the winding diameter starts due to the thickness deviation of each strip, the strip having a larger winding diameter has a larger perimeter than other strips having a smaller diameter, and Although the speed tends to be faster than that of the strip, the split winding cylinder during the winding of this large diameter strip does not cause excessive tension due to mutual slippage at the frictional engagement portion with the winding shaft. Instead, it will be wound around the recoiler at the same speed and tension as other strips.

In this way, the divided take-up cylinders do not rotate at the same speed, and the rotational speed becomes slower with the divided take-up cylinder having a large take-up diameter, so that the divided take-up cylinders are wound regardless of the size of the take-up diameter. The circumferential speed of the winding surface of the cylinder is the same. For this reason, there is no loop and the difference in the winding diameter due to the deviation of the strip thickness is small, so each strip can be wound on each split winding drum with a substantially uniform winding tension. become.

〔Example〕

Hereinafter, the present invention will be described more specifically on the basis of the embodiments shown in the drawings.

FIG. 1 is a schematic view seen from the front when pull-cut slitter lines are arranged in the vertical direction, (1) is a floor surface,
(2) is an uncoiler in which a wide metallic strip coil (3) is mounted and a metallic strip (4) having tension is drawn out, (5)
Is a non-driving slitter equipped with a disc-shaped slitter knife, (6) is a strip that is cut into pieces, (7) is a recoiler that winds the strip (6), and the recoiler (7) is one roll. The take-up shaft has a structure in which a plurality of divided take-up drums (19) shown in FIG. 4 are mounted according to the width and the number of the strips (6). The uncoiler (2) and the recoiler (7) are vertically arranged substantially vertically, and the slitter (5) is arranged between them. (8) is a strip coil. Although not shown in the figure, these devices are mounted on a common mount, and a plurality of recoilers may be arranged.

FIG. 2 is a schematic view of an embodiment in which the present invention is applied to a pull-cut slitter line for high-quality materials, viewed from the front.
(2 ') is a rotatable uncoiler without a braking torque generator, (5') is a slitter with power,
(7 ') is a recoiler for winding the strip (6), and the recoiler (7') is divided into one winding shaft and divided as shown in Fig. 4 according to the width and the number of strips of the strip (6). A plurality of divided winding drums (19) are attached. The uncoiler (2 ') and the recoiler (7') are vertically arranged substantially vertically, and the slitter (5 ') is arranged between them.
Reference numeral (14) is a tension applying device for applying tension to the metallic strip (4) without causing slippage with the metallic strip (4).
Since the other reference numerals are the same as those in FIG. 1, the description thereof will be omitted. Although not shown in the figure, these devices are mounted on a common mount, and a plurality of recoilers may be arranged.

FIG. 3 shows a tension applying device (14) for applying tension to the metallic strip (4) without causing slippage with the metallic strip (4).
FIG. 3 is a cross-sectional view of one example of the above, taken along the moving direction of the metallic strip (4). In the tension applying device (14), endless belts (16) held so as to be able to circulate are arranged so as to face each other, and a metallic band is passed between the outer surface sides of the endless belts (16) that face each other. The endless belt (16) is pressed against the plate (4) with a crimping machine (17) arranged on the inner surface side of the endless belt (16) to press the endless belt (1).
6) is driven by frictional engagement with the metal strip (4) moving between the two, and the endless belt (16) is circulated together with the moving metal strip (4) to circulate the pressure bonding plate (4). Tension is applied to the metallic strip (4) by the frictional force due to the sliding between 17) and the inner surface of the endless belt (16). The outer surface of the flat portion of the endless belt (16) stretched between a pair of rotatable pulleys (15) is pressed against the metal strip (4) by a crimping plate (17). The friction coefficient between the crimping plate (17) and the inner surface of the endless belt (16) is smaller than the friction coefficient of the outer surface of the endless belt (16) and the metallic strip (4).

FIG. 4 shows an example of a split winding cylinder. In a recoiler in which a plurality of split winding cylinders divided and cut according to the width and the number of strips of the strip (6) are mounted on one winding shaft. FIG. 1 is a cross-sectional view taken along the winding shaft of one example, in which (18) is a winding shaft, (19) is a split winding cylinder, (20) is a sliding bearing, and (22) is a friction piece (21) for suppressing the friction. With the metal parts, the winding shaft (18) and the pneumatic or hydraulic cylinder (23), which is integrated with the winding shaft (18), clamps and releases the split winding cylinder (19) and the friction piece (21). Each split winding cylinder (19) has a friction piece (2
By 1), it is possible to rotate independently of each other while causing a slip with respect to the winding shaft (18). The pressure acting on the cylinder (23) is adjusted by the friction between the friction piece (21) and the split winding cylinder (19) so that the generated torque satisfies the required winding tension × winding radius. (24) is a rotary joint that supplies pneumatic pressure or hydraulic pressure,
It is connected to a prime mover for driving a recoiler (not shown).

[Effect of device]

As is clear from the above description, according to the vertical slitting line for metallic strips according to the present invention, the uncoiler and the recoiler are arranged substantially vertically, and a plurality of metallic strips are provided in the middle thereof. A slitter for dividing and cutting is arranged at the same time, and the recoiler is divided into a plurality of divided winding cylinders corresponding to the width and the number of the divided cut strips, and a plurality of divided winding cylinders that can rotate independently of one another are wound on one roll. Since it is configured to be mounted on the take-up shaft, each strip can be wound around each split take-up cylinder of the recoiler with a predetermined take-up tension, and the loop that is caused by the thickness deviation can be eliminated. Since the loop can be eliminated, the slitter line can be arranged vertically.

And since the slitter line can be arranged vertically, the slitter line, which is conventionally arranged in the horizontal direction, is arranged in the vertical direction, and the necessary equipment is mounted on a common frame, so it is packaged. In addition to greatly reducing the installation area, it also makes it extremely easy to install, move, and remove the entire line.

Moreover, since the uncoiler and the recoiler are arranged vertically almost vertically, and the slitter for dividing and cutting the metallic strip into a plurality of strips is arranged in the middle, the initial strip of the metallic strip is the metallic strip. It can be done very easily by simply lowering it down using the weight of the board, which eliminates the need to arrange auxiliary equipment for plate passing, like the conventional slitter line that is arranged in the horizontal direction. Therefore, the equipment cost can be reduced. In addition to this, it is possible to perform the strip passing in a short time with almost no manpower required, and it is possible to achieve speeding and labor saving of the strip running.

Further, since each strip can be wound around each split winding cylinder of the recoiler with a predetermined winding tension, the winding tension becomes uniform, and the difference in quality of separation and cutting due to the uneven tension in the slitter does not occur. Does not happen. Thus, the exclusive slitter line for high-quality materials can be packaged in a compact size, which is extremely useful in practice.

[Brief description of drawings]

1 to 4 show an embodiment of a vertical slitting line for metallic strips according to the present invention, and FIG. 1 shows a vertical slitting line for metallic strips of the first embodiment. FIG. 2 is a schematic view seen from the front, FIG. 2 is a schematic view seen from the front of a vertical slitting line for metallic strips of the second embodiment, and FIG. 3 is a side sectional view showing the structure of the tension applying device. The figure is a cross-sectional view of the recoiler. 5 and 6 are schematic views of a conventional slitter line as seen from the side surface, and FIG. 7 is an explanatory diagram of deviation in thickness in the width direction of the strip plate. [Explanation of reference symbols] (1): Floor surface (2) (2 '): Uncoiler (3): Wide metal strip coil (4): Metal strip (5) (5'): Slitter (6) : Strip (6 '): Central strip (6 "): End strip (7) (7'): Recoiler with split winding cylinder (8): Strip coil (9): Shear (10) ) (13): Loop (11): Pinch roll (14): Tension applying device (15): Pulley (16): Belt (17): Crimping machine (18): Winding shaft (19): Split winding cylinder (20): Sliding bearing (21): Friction piece (22): Bracket (23): Cylinder (24): Rotating joint

Claims (1)

[Scope of utility model registration request] 1. An uncoiler and a recoiler are vertically arranged substantially vertically, and a slitter for dividing and cutting a metallic strip into a plurality of strips is arranged in the middle thereof, and the recoiler is provided with 1 divided winding cylinders that are divided according to width and number of threads and can rotate independently of each other
A vertical slitter line for metal strips, which is characterized in that it is mounted on a winding shaft of a book.