JPH06126328A - Method and device for coiling slit metallic strip - Google Patents

Abstract

PURPOSE:To facilitate the manufacture of slit coil without weaving and coiling tendency. CONSTITUTION:At the position of 30 to 700mm from a contact point between a coiled coil 9 and a slit metallic strip 2, a pressing force of (0.1kgf/mm-0.8kgf/ mm)X(total mm of width of coiled metallic strip) is given to coiled metallic strip for coiling. For the giving of the pressing force, a complex roller is used in which a plural number of small diameter rollers is formed with their outer faces arranged along a projected arcuate surface.

Description

Detailed Description of the Invention

[0001]

[Industrial application] A narrow metal strip is manufactured by slitting a wide metal strip and winding it into a coil. The present invention relates to a winding method and a winding device for winding a slit metal strip in a coil shape at this time.

[0002]

2. Description of the Related Art FIG. 6 is a schematic explanatory view of a slitter line. The wide metal strip 1 is slit by a rotary round blade 3, 3'into a narrow metal strip 2. The slit metal strip 2 forms a loop 4, which is then sandwiched by a tension pad 5 ′ or a tension roll 5 and wound into a coil by a winding reel 6. At this time, the rotations of the tension roll 5 and the take-up reel 6 are adjusted, and the slit metal band 2 between them is adjusted.
Tension is applied to the coil and the coil is wound tightly.
Reference numerals 7 and 7'in the figure are separators for running the slit metal strips 2 apart from each other.

FIG. 7 is an explanatory view of a conventional winding method for a slit narrow metal strip. 7A is a cross-sectional view of the wide metal strip 1, which is slit by the rotary round blades 3 and 3'shown in FIG. 7B, and the cross-section is 2-1 ... 2 in FIG. 7C. It becomes the slit metal strip shown in -5. 8 in FIG. 7 (C)
Is a shear burr appearing at the sheared portion of the slit metal strip. FIG. 7D shows a slit metal strip plate 2-1, ...
2-5 is a plan explanatory view of a coil in which 2-5 is wound up by the winding reel 6 as it is. FIG. Metal strips 2-1 and 2- slit in the figure
The surfaces 3 and 2-5 of the shearing burr 8 on which the projections are not formed are brought into contact with the outer surface of the wound coil, and the wound coil 2′-1, 2 is wound in this state. '-3,
2'-5 is a wound coil in which the side surfaces are not uniform, that is, the side surfaces (surfaces on which slits are overlapped) have irregularities. The slit metal strips 2-2 and 2-4 are wound by abutting the outer surface of the coil on which the surface of the shear burr 8 where the protrusion is formed is wound, and the coil wound in this state. 2 '
-2 and 2'-4 are unwound coils.

The wound coil is liable to cause a flaw on its side surface (coil edge portion) by coming into contact with an adjacent metal strip or coil during winding, and a flaw is generated on the coil edge portion during conveyance. Easy to do. Further, the wound coil is not preferable because, for example, when the metal strip is unwound and punched to manufacture a precision component, the running path of the metal strip becomes unstable and the dimensional accuracy of the precision component is impaired. FIG. 7 (E) is an explanatory diagram of a method for manufacturing a coil without winding. That is, in the loop 4 of FIG. 6, each of the metal strip plates 2-1, 2-3, 2-5 is twisted by 180 ° and wound by the winding reel 6. Due to this twist,
As shown in (F), the metal strips 2-1, 2-3, 2-5 are also
Similar to the metal strips 2-2 and 2-4, the surface of the shear burr 8 on which the protrusions are formed is brought into contact with the outer surface of the coil being wound and wound up, and 2′-2 or 2 ′. It is a coil with no winding similar to -4.

When slitting a wide metal strip, the shear burr 8 is an upward slit of the metal strip 2-1 and 2-.
3, 2-5 and the metal strips 2-2, 2-4 in which the shear burr 8 is downwardly slit are alternately generated. At this time, as described above, if the metal strips, each of which is slit to one side, are sequentially twisted and wound up by 180 °, it is possible to prevent the occurrence of winding on all the coils. When there are many metal strips that have been cut and slit, it is extremely troublesome to twist the metal strips that have been slit to 180 °.

[0006]

When slitting a wide metal strip, it is cut into a large number of slit metal strips having different widths, but the width and the number of slit metal strips are different every day depending on the production instruction. In addition, the work of twisting a metal strip that has been slit into a single piece by 180 ° is not familiar with automation, and as already mentioned, it is extremely troublesome to perform by hand.

According to the present invention, a winding method and a winding device can be used to wind a slit metal strip without twisting and to generate all winding coils without generating winding coils. Is an issue.

[0008]

FIG. 1 is an explanatory view of the present invention. According to the present invention, at the position of L = 30 to 700 mm from the contact point S between the wound coil 9 and the wound metal strip 2, the wound strip 2 (0.1 kgf / Mm ~
0.8 kgf / mm) x (total width of the metal strip that is wound up m)
m) is a winding method for a slit metal strip, which is applied with a pressing force P and wound.

The pressing force P can be applied to the strip 2 wound up by felt, for example, but if the rotatable pressing roller 10 is used, the surface of the metal strip 2 is not rubbed. The pressing force can be applied by, and the occurrence of scratches on the surface of the metal strip can be prevented.

When a pressing force is applied through the small-diameter roller 10 of FIG. 1, when the wound coil is used after being unwound, the flatness of the unwound metal strip is impaired and unwound. The metal strip may warp or swell. According to the knowledge of the present inventors, for example, a plurality of small-diameter rollers 11-1, 11-2, 11-3 shown in FIG. 2 are provided, and the outer surface thereof is arranged along the convex arc surface 13. Formed arc surface 1
When a pressing force is applied by using the composite roller 12 having a large diameter of 3, the flatness of the rewound metal strip is easily secured when the rewound coil is rewound and used. In this case, the small-diameter roller 11-3 located at the tip among the plurality of small-diameter rollers
The composite roller 12 is set such that the distance between the contact point S with the metal strip 2 and the contact point S is within the range of 30 to 700 mm, and the pressing force is the plural small diameter rollers 11-1, 1
The total pressing force of 1-2 and 11-3 is (0.1kgf / mm ~
0.8kgf / mm) x (total width of rolled strips in mm).

[0011]

The present inventors have taken up the winding device for the slit metal strip 2 shown in FIG. 3 using the pressing device 14 without twisting the slit metal strip. From the contact point S between the coil 9 and the metal strip plate 2, the pressing roller 1
The metal strip 2 was wound while changing the distance L up to 4 and the pressing force P. In the apparatus shown in FIG. 3, the deflector roll 15 and the take-up reel 6 are arranged such that D ₁ = 1200 mm and D ₂ = 700 mm, and the deflector roll 15 has an outer diameter 53 whose surface is covered with rubber.
The roll is 0 mm and the take-up reel 6 is made of steel with an outer diameter of 508 mm.

The pressing device 14 is an I-shaped pressing roller using one roll having a diameter of 150 mm and a diameter of 85 mm × 2.
Outer diameter is 150 mm x 3 rollers, 1 roller is 150 mm
A type II (composite roller) arranged along a 0 mm convex arc surface was used. The wide metal strip used has a thickness of 0.15 mm,
0.23mm, 0.35mm, 0.5mm, 0.7mm, 1.0mm
The slit is an example in which a wide metal strip is cut into multiple strips with a width of 20 mm to 100 mm.

FIG. 4 is a diagram showing the generation of a wound coil in this test. The position L pressed by the pressing device 14 is 3
If it is less than 0 mm, there is a high frequency of winding jams. L is 7
Even if it exceeds 00 mm, the occurrence of winding jam is high. Further, when the pressing force P is less than 0.1 kgf / mm, winding jam frequently occurs. If the pressing force P exceeds 0.8 kgf / mm, L is 30 mm to 7
Even if the length is 00 mm, some wrapping occurs.

FIG. 5 is a diagram showing the occurrence of warpage and undulation of the coil wound in this test. ○ and □ are when the coil is wound and then rewound, and when the unwound metal strip is placed on a horizontal surface plate, there is no warp or undulation with a height of 5 mm or more, and ● and ■ are 5 mm It shows the case where there is super warp or swell. For the warp and swell, the pressing force P is 0.8 kgf /
It tends to occur when it exceeds mm. As you can see in the figure, type II
When a pressing roller (composite roller) is used, warpage and waviness are less likely to occur.

As described above, from FIG. 4 and FIG. 5, in the present invention,
(0.1 kgf / mm to 0.8 kgf / mm) x (winding) at a position 30 to 700 mm from the contact point between the wound coil and the slit metal strip. The total pressure of the width of the metal strip (mm) is applied by a pressure roller and wound up, or a plurality of small-diameter rollers are formed on the outer surface of the composite roller along a convex arc surface. Although the wound metal strip is wound while being pressed by using the pressing roller, according to the present invention, it can be wound on the metal strip having no winding and less curling.

[0016]

By implementing the present invention, a slit metal strip can be wound into a coil having a good shape without causing winding or curling.

In the present invention, it is not necessary to twist the metal strip plate having a plurality of slits to one. Therefore, when the present invention is carried out, labor saving and automation of the sheet passing work can be easily achieved.

[Brief description of drawings]

1 is an explanatory view of an example of the winding device of the present invention, FIG. 2 is an explanatory view of another example of the winding device of the present invention, FIG. 3 is an explanatory view of the winding device used in the embodiment, and FIG. FIG. 5 is a diagram of a wound coil generation region in the embodiment, FIG. 5 is a diagram of a wound coil generation region in the embodiment, FIG. 6 is a schematic explanatory view of a slitter line, and FIG. 7 is a conventional winding method for a slit metal strip. FIG.

[Explanation of symbols]

1: Wide metal strip, 2 (2-1, ..., 2-5): Slit metal strip, 2 '(2'-1, ..., 2'-5): Slit metal strip Coil, 3 (3 '): rotary blade, 4: loop, 5: tension roll,
5 ': Tension pad, 6: Take-up reel, 7
(7 '): separator, 8: shear burr, 9: wound coil, 10: pressure roller, 11 (11
-1, 11-2, 11-3): small diameter roller, 12:
Compound roller, 13: arc surface, 14: pressing device, 1
5: Deflector roll

Claims (3)

[Claims] 1. A coiled metal strip (0.1 kgf / mm-0.8 kgf / mm) at a position 30 to 700 mm from the contact point between the coiled coil and the slit metal strip. ) ×
A method for winding a slit metal strip, which comprises applying a pressing force of (total width of rolled metal strip mm) and winding. 2. A coiled metal strip (0.1 kgf / mm to 0.8 kgf / mm) at a position 30 to 700 mm from the contact point between the coiled coil and the slit metal strip. ) ×
A device for winding a slit metal strip, characterized in that a pressing roller for applying a pressing force (total width of the rolled metal strip) is provided. 3. A composite roller in which the pressing roller is formed by arranging a plurality of small diameter rollers along an outer surface thereof along a convex arc surface, and the total pressing force of the plurality of small diameter rollers is (0.1 kgf
/ Mm to 0.8 kgf / mm) × (total width of the rolled metal strips mm), The winding device for slit metal strips according to claim 2, wherein