JP5442904B1 - Guide roll pressing gang slitter device - Google Patents

Abstract

A guide roll pressing method that improves the quality of a slit strip by forming an upper slit strip in which scratches due to relative slip with the outer peripheral surface of the lower blade of the slitter are reduced during shearing of a metal strip. A gang slitter device is provided.
A slitter 120 of a guide roll pressing type gang slitter apparatus shears a metal strip MB that has passed through a lower roll 160B with an upper blade 121 and a lower blade 122, and a plurality of upper slit strips S1 and lower slit strips. S2 is formed. The upper blade 121 has an upper blade outer peripheral surface 121B that contacts the lower slit strip S2 from the upper side, and the lower blade 122 has a lower blade outer peripheral surface 122B that contacts the upper slit strip S1 from the lower side. The lower roll 160B contacts the metal band MB above the reference straight line N passing through the two intersections 124 and 125 where the upper blade outer peripheral surface 121B and the lower blade outer peripheral surface 122B intersect when viewed from the width direction of the metal band MB. In addition, the take-in inclination angle α with respect to the reference straight line N of the metal band MB taken into the slitter 120 is defined.
[Selection] Figure 3

Description

  The present invention relates to a guide roll pressing gang slitter device that forms a plurality of slit strips by shearing a metal strip.

A conventional gang slitter apparatus shears an uncoiler around which a metal strip is wound, and a metal strip drawn from the uncoiler, for example, an aluminum metal strip, with a rotating disk-shaped upper and lower blades, and performs a plurality of processes. A slit strip, for example, a slitter that forms an aluminum slit strip, a guide roll that contacts the aluminum metal strip between the coil and the slitter in the traveling direction of the aluminum metal strip, and a recoiler that winds each aluminum slit strip into a coil shape. Provided (see, for example, Patent Document 1).
The plurality of aluminum slit strips are one or more upper aluminum slit strips that contact the outer peripheral surface of the lower blade from the upper side during shearing, and one or more that contact the outer peripheral surface of the upper blade from the lower side during shearing It consists of a lower aluminum slit strip.

  In addition, as shown in FIG. 14, conventionally, a metal strip, for example, an aluminum metal strip MB, is sheared into a narrow width between a disc-shaped upper blade 521 and a disc-shaped lower blade 522, and a plurality of slit strips, for example, aluminum. A pair of metal band take-in side pads 560A, 560B which are disposed on the metal band take-in side of the slitter 520 forming the slit SB and stabilize the running of the aluminum metal band MB by pressing the aluminum metal band MB from above and below; A pair of slit lead-out pads 570A and 570B which are arranged on the slit lead-out side for pulling out the aluminum slit strip SB from the slitter 520 and stabilize the traveling of the aluminum slit strip SB by pressing the aluminum slit strip SB from the vertical direction. There is a gang slitter device equipped with.

Japanese Patent Laying-Open No. 2011-240461 (see paragraphs 0017 to 0025 and FIG. 1)

In the former conventional gang slitter device, in the slitter, the upper aluminum slit strip is in contact with the outer peripheral surfaces of the lower blades of the lower blades adjacent in the width direction from the upper side, and the lower aluminum slit strip is adjacent in the width direction. The upper blades move in the traveling direction while being in contact with the outer peripheral surfaces of the upper blades from below.
At this time, the upper pressing force, which is the pressing force by which the lower aluminum slit strip presses the outer peripheral surface of the upper blade upward, is the pressing force resulting from the tension acting on the lower aluminum slit strip (hereinafter referred to as “tension-related pressing force”). On the other hand, the upper pressing force, which is the pressing force by which the upper aluminum slit strip presses the outer peripheral surface of the lower blade from the upper side, is reduced by the weight of the lower aluminum slit strip. In addition to this, the upper aluminum slit strip becomes larger by its own weight.
For this reason, due to the relative sliding between the outer peripheral surface of the lower blade and the upper aluminum slit strip, the upper aluminum slit strip is more susceptible to scratches that impair the appearance than the lower aluminum slit strip. There was a problem that the quality of the strips deteriorated.

Further, as shown in FIGS. 15 and 16, the uneven portion P1 called a center buckle or quarter buckle due to thermal stress or the like in the rolling process at the time of manufacturing the metal band is a metal band, for example, the longitudinal direction of the aluminum metal band MB There is a possibility that the aluminum metal band MB may be sheared while being generated intermittently at D1 and leaving such an uneven portion P1.
Further, as shown in FIG. 17 and FIG. 18, the aluminum metal band is left with the vertical stripes P2 having an uneven cross section generated over the longitudinal direction D1 of the aluminum metal band MB due to the tension state of the aluminum metal band MB. MB may be sheared.

  For this reason, in the conventional gang slitter apparatus, as shown in FIGS. 19 to 21, the slit strip, for example, the aluminum slit strip SB, is formed by shearing the aluminum metal band MB so as to divide the uneven portion P1 or the vertical stripe P2. In this case, the wavy side end Q generated in the aluminum slit strip SB due to the uneven shape of the uneven portion P1 or the vertical streak P2 is flattened after the aluminum metal strip MB is sheared, and the width direction of the aluminum slit strip SB There is a problem in that the width dimension of the aluminum slit strip SB becomes non-uniform along the longitudinal direction E1 of the aluminum slit strip SB by extending flat along the E2 by the length ΔW.

  Further, in the latter conventional gang slitter apparatus, the travel of the metal band MB supplied to the slitter 520 can be stabilized, but between the metal band taking-in side pads 560A and 560B and the aluminum metal band MB and the slit drawing side. Since the aluminum metal strip MB and the aluminum slit strip SB are scratched due to contact friction between the pads 570A and 570B and the aluminum slit strip SB, the scratches remain on the aluminum slit strip SB which is the final product. There was a point.

Therefore, the technical problem to be solved by the present invention, that is, the object of the present invention is to reduce the scratches that tend to occur due to relative sliding with the outer peripheral surface of the lower blade of the slitter during shearing of the metal strip. It is to provide a guide roll pressing type gang slitter device in which the quality of the slit strip is improved by forming the upper slit strip.
Another object of the present invention is to shear the slit strip with a uniform width dimension in the longitudinal direction even when a center buckle, a quarter buckle and a vertical streak are generated in the metal band. It is an object of the present invention to provide a guide roll pressing type gang slitter device in which the quality of a slit strip is improved by forming a slit strip in which scratches that tend to occur are reduced.

  In the present invention according to claim 1, the uncoiler around which the metal strip is wound, and the metal strip drawn from the uncoiler are rotated by a plurality of disk-shaped upper blades and a plurality of disk-shaped lower blades. A slitter that is sheared along the longitudinal direction of the metal strip to form a plurality of slit strips composed of one or more upper slit strips and one or more lower slit strips, and the coil and the slitter in the traveling direction of the metal strip. A metal band guide roll that contacts the metal band in the width direction thereof, a recoiler that winds the plurality of slit strips in a coil shape, and a metal band that suppresses the metal band drawn from the coil And a tension adjusting mechanism for maintaining the tension state of the slit strip, and the disk-shaped upper blade has an upper blade outer peripheral surface that comes into contact with the lower slit strip from above during shearing, and the disk In the guide roll pressing type gang slitter device having a lower blade outer peripheral surface that contacts the upper slit strip from the lower side during the shearing process, the upper side when the metal band guide roll is viewed from the width direction. The metal band that is in contact with the metal band above the reference straight line that passes through the take-in side intersection and the draw-out side intersection where the blade outer peripheral surface and the lower blade outer peripheral surface intersect, and the metal band that is taken into the slitter with respect to the reference straight line By defining the take-in inclination angle, the above-mentioned problems are solved.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the take-in inclination angle is a tangent to the outer peripheral surface of the upper blade and the reference straight line at the take-in side intersection point when viewed from the width direction. The above-mentioned problem is solved by being less than the angle formed by.

  According to a third aspect of the present invention, in addition to the configuration according to the first or second aspect, the metal strip on which the maximum tension acts is in a standard take-up angle state where the metal band is located on the reference straight line. When the upper slit strip is taken into the slitter and the pressing force smaller than the standard upper pressing force pressing the outer peripheral surface of the lower blade is an allowable pressing force, the take-in inclination angle is the upper slit strip. As described above, the upper pressing force that presses the outer peripheral surface of the lower blade and the lower pressing force that the lower slit strip presses the outer peripheral surface of the upper blade are set to be equal to or less than the allowable pressing force. Is a solution.

  According to a fourth aspect of the present invention, in addition to the configuration according to any one of the first to third aspects, the upper slit strip and the lower slit strip are provided on a slitter strip drawing side with respect to the slitter. The slit strip guide roll is in contact with the upper slit strip, the upper drawer tilt angle of the upper slit strip with respect to the reference straight line, and the lower slit tilt angle of the lower slit strip with respect to the reference straight line. Are defined, and the above-described problem is solved by the fact that the upper drawer inclination angle is smaller than the lower drawer inclination angle.

  According to a fifth aspect of the present invention, in addition to the structure according to any one of the first to fourth aspects, the metal strip extends from the upper side or the lower side in the width direction. An uneven portion correcting roll for flattening uneven portions that are intermittently generated in the longitudinal direction of the metal band by pressing uniformly and making the thickness of the metal band uniform in the width direction is provided. The partial correction roll is disposed between the coil and the metal strip guide roll in the traveling direction, thereby solving the above-described problems.

  According to a sixth aspect of the present invention, in addition to the configuration according to any one of the first to fifth aspects, the metal band guide roll presses the metal band in the width direction. The above-mentioned problem is solved by the lower roll for correcting vertical bars that flattens the vertical stripes extending in the longitudinal direction of the metal band and equalizes the thickness of the metal band in the width direction. is there.

The “uneven portion” in the present invention is a spot-like shape that occurs intermittently in the longitudinal direction of a metal band called a center buckle or a quarter buckle in handling a metal band in a guide roll pressing gang slitter device. Or it is a spot-like part.
The “longitudinal streaks” in the present invention is a streak-like deformed state extending in the longitudinal direction of the metal strip drawn from the uncoiler in the guide roll pressing gang slitter device, and has a corrugated shape in the width direction of the metal strip. The cross-sectional form is exhibited.

  According to the guide roll pressing type gang slitter device of the present invention according to claim 1, the uncoiler around which the metal strip is wound, the plurality of disk-shaped upper blades that rotate the metal strip drawn from the uncoiler, and the plurality A slitter that is sheared along the longitudinal direction of the metal strip by a disc-shaped lower blade to form a plurality of slit strips composed of one or more upper slit strips and one or more lower slit strips, and the traveling direction of the metal strip The metal band guide roll that contacts the metal band in the width direction between the coil and the slitter, the recoiler that winds each of the plurality of slit strips in a coil shape, and the metal band that is drawn from the coil is suppressed. A tension adjusting mechanism for maintaining the tension state of the belt and slit strip, and the disc-shaped upper blade has an upper blade outer peripheral surface that comes into contact with the lower slit strip from the upper side during shearing, and is disc-shaped. When the blade has a lower blade outer peripheral surface that contacts the upper slit strip from the lower side during shearing, the wide metal strip is sheared into a narrow slit strip without the meandering and slack of the metal strip. In addition, the following unique effects can be achieved.

  That is, according to the guide roll pressing type gang slitter device according to the first aspect of the present invention, the metal band guide roll has an intake side intersection and a draw side intersection at which the outer peripheral surface of the upper blade and the outer peripheral surface of the lower blade meet when viewed from the width direction. The metal band drawn out from the uncoiler is in contact with the metal band on the upper side of the reference line passing through Since it is supplied to the slitter from the upper side with respect to the reference straight line in a state in which the take-in inclination angle is formed by the guide roll, the upper slit strip contacting the lower blade outer peripheral surface from the upper side is the pressing force pressing the lower blade outer peripheral surface. A certain upper pressing force is reduced by the upward component force of the tension acting on the metal band nearer to the metal band guide roll than the intersection on the take-in side. Can form an upper slit strip of abrasion has been reduced due to the relative sliding of the surface, it is possible to improve the quality of the upper slit Article.

  In addition, since the metal band guide roll is used in place of the conventional metal band take-in side pad as described above, the running state of the metal band is stabilized, and the metal band is scratched by the pad. It is possible to form slit strips with less scratching.

According to the guide roll pressing gang slitter device according to claim 2, in addition to the effect exerted by the guide roll pressing gang slitter device according to claim 1, the capturing inclination angle is the capturing side intersection point when viewed from the width direction. The contact portion and the non-contact portion with the outer peripheral surface of the upper blade are alternately generated in the width direction at an angle closer to the uncoil than the capturing side intersection, by being less than the angle formed by the tangent line of the upper peripheral surface of the upper blade and the reference straight line. It is possible to prevent the dimensional accuracy of the slit strip from being lowered due to the deformation of the metal strip.
In addition, the lower slit strip is a pressing force that presses the outer peripheral surface of the upper blade, and the lower slit strip is scratched due to relative sliding with the outer peripheral surface of the upper blade due to the increase of the tension-related pressing force in the lower pressing force. Can be suppressed.

  According to the guide roll pressing type gang slitter device according to the third aspect of the present invention, in addition to the effect exerted by the guide roll pressing type gang slitter device according to the first or second aspect, the maximum tension acts. When the metal strip is taken into the slitter at the standard take-up angle state where the metal strip is located on the reference straight line, when the upper slit strip presses the lower blade outer peripheral surface with a press force smaller than the standard upper press force, The take-in inclination angle is set so that the upper pressing force by which the upper slit strip presses the outer peripheral surface of the lower blade and the lower pressing force by which the lower slit strip presses the outer peripheral surface of the upper blade are less than the allowable pressing force. Therefore, the upper side pressing force and the lower side pressing force are smaller than the standard upper side pressing force because the upper side pressing force and the lower side pressing force are less than the allowable pressing force, so the upper slit that presses the outer peripheral surface of the lower blade with the standard upper side pressing force. Compared to abrasions that occur, abrasions may form a upper slit strip and lower slit strip which is alleviated.

  According to the guide roll pressing gang slitter device according to claim 4, in addition to the effect produced by the guide roll pressing gang slitter device according to any one of claims 1 to 3, On the other hand, the slitter strip is provided with a slit strip guide roll that contacts the upper slit strip and the lower slit strip, and the slit strip guide roll has an upper slit inclination angle with respect to a reference straight line of the upper slit strip and a lower slit. Each of the strips defines a lower pulling inclination angle with respect to the reference straight line, and the upper pulling tilt angle is smaller than the lower pulling tilt angle, whereby the tension-related pressing force by which the upper slit strip presses the outer peripheral surface of the lower blade is reduced. Therefore, the upper pressing force is reduced by that amount, and the upper slit strip in which the scratches are further reduced can be formed.

  According to the guide roll pressing gang slitter device according to claim 5, in addition to the effect exhibited by the guide roll pressing gang slitter device according to any one of claims 1 to 4, a metal strip Is pressed evenly from either the upper side or the lower side in the width direction to flatten the uneven portions that are intermittently generated in the longitudinal direction of the metal band, and to increase the thickness of the metal band in the width direction. If the uneven part correcting roll is arranged between the coil and the metal strip guide roll in the direction of travel, it is sheared into any narrow slit strip Even so, this uneven part correcting roll flattens the uneven part that is intermittently generated in the longitudinal direction of the metal band in at least the width direction of the metal band and makes the thickness of the metal band uniform in the width direction. At the same time, the cutting edges of the disk-shaped upper blade and the disk-shaped lower blade come into contact with the upper and lower surfaces of the flattened metal band to shear the metal band. It is possible to form a straight side end portion by correcting the wavy side end portion of the slit strip which is likely to occur by shearing the metal strip so as to be divided in the longitudinal direction as it is.

According to the guide roll pressing gang slitter device according to claim 6, in addition to the effect exhibited by the guide roll pressing gang slitter device according to any one of claims 1 to 5, a metal strip A lower roll for correcting vertical bars that flattens the vertical stripes extending in the longitudinal direction of the metal band and equalizes the thickness of the metal band in the width direction by the guide roll pressing the metal band in the width direction. As a result, the vertical stripe generated by maintaining the metal band in a tensioned state is flattened at a position closer to the slitter than the roll for correcting uneven portions, and the metal band whose thickness is made uniform in the width direction is left as it is. Because it is taken into the slitter and sheared, the side end portion that tends to occur in the slit strip by shearing the metal strip so that the longitudinal streak is generated and split along the longitudinal direction, that is, The slit strip to suppress the occurrence of Jo end over the longitudinal direction of the slit strip may be sheared to a uniform width.
Moreover, because the lower roll for straight muscle correction is used in place of the conventional pad, the running state of the metal band is stabilized, so that at least the scratches on the metal band are not reduced. A slit strip can be formed.

The block diagram of the guide roll press type gang slitter apparatus which is one Example of this invention. It is 2-2 sectional drawing of FIG. 1, and sectional drawing in the plane containing a pair of rotating axis of the slitter of a guide roll press type gang slitter apparatus. (A) is principal part sectional drawing of the guide roll press type gang slitter apparatus in the 3-3 cross section of FIG. 2, (b) is an enlarged view of b part of (a), (c) is (a). FIG. The principal part enlarged view of FIG. The perspective view which exaggerated and showed the horizontal state where the curving protrusion of the roll for uneven | corrugated | grooved part correction in this invention was carried out. The front view which exaggerated and showed the horizontal state where the curved protrusion of the roll for uneven part correction in the present invention projected. The perspective view of the upper roll for vertical muscle correction and the lower roll for vertical muscle correction in this invention. The front view of the upper roll for longitudinal muscle correction in this invention. The fragmentary sectional view of the aluminum metal belt by which the uneven part was corrected. The fragmentary sectional view of the aluminum metal belt by which the vertical stripe was corrected. The block diagram of the control element which concerns on the guide roll press type gang slitter apparatus which is one Example of this invention. The control flowchart of the guide roll press type gang slitter apparatus which is one Example of this invention. The graph which shows an example of correlation data. The principal part side view of the conventional gang slitter apparatus. The perspective view which showed the generation | occurrence | production state of the uneven | corrugated | grooved part of an aluminum metal strip. It is 16-16 sectional drawing of FIG. 15, Comprising: The sectional view which exaggerated and showed the uneven | corrugated form. The perspective view which showed the generation | occurrence | production state of the vertical stripe of an aluminum metal strip. FIG. 18 is a cross-sectional view taken along line 18-18 in FIG. 17 and exaggeratedly showing the uneven shape. Sectional drawing of the aluminum slit strip formed by shearing an aluminum metal strip with the conventional gang slitter apparatus. Sectional drawing which showed the expansion to the width direction of the aluminum slit strip formed by shearing an aluminum metal strip with the conventional gang slitter apparatus. The top view which showed the expansion to the width direction of the aluminum slit strip formed by shearing an aluminum metal strip with the conventional gang slitter apparatus.

  The guide roll pressing type gang slitter device of the present invention includes an uncoiler around which a metal strip is wound, and a metal strip drawn from the uncoiler by a plurality of rotating disc-shaped upper blades and a plurality of disc-shaped lower blades. A slitter that is sheared along the longitudinal direction of the metal strip to form a plurality of slit strips composed of one or more upper slit strips and one or more lower slit strips, and between the coil and the slitter in the traveling direction of the metal strip. Metal strip guide roll that contacts the metal strip in the width direction thereof, a recoiler that winds a plurality of slit strips in a coil shape, and a tension state of the metal strip and the slit strip by suppressing the metal strip drawn from the coil The disk-shaped upper blade has an upper blade outer peripheral surface that comes into contact with the lower slit strip from above during shearing, and the disk-shaped lower blade during shearing It has a lower blade outer peripheral surface that comes into contact with the upper slit strip from the lower side, and the metal band guide roll passes through an intake side intersection point and a drawer side intersection point where the upper blade outer peripheral surface and the lower blade outer peripheral surface intersect when viewed from the width direction. The outer peripheral surface of the lower blade of the slitter is in contact with the metal strip above the reference straight line, and the inclination angle of the metal strip taken into the slitter with respect to the reference straight line is specified when the metal strip is sheared. As long as the quality of the slit strip is improved by forming the upper slit strip in which the scratches that tend to occur due to relative slippage are reduced, the specific embodiment is not limited. But it doesn't matter.

For example, the material of the metal strip to be sheared by the guide roll pressing type gang slitter apparatus of the present invention is a thickness that can be sheared thinly with a thin or strip-like metal strip such as aluminum, stainless steel, and iron-plated steel plate Any metal band may be used as long as it has a thickness.
The plurality of slit strips formed by the slitter may all have the same width, or at least two slit strips may have different widths.

Hereinafter, a guide roll pressing type gang slitter apparatus which is an embodiment of the present invention and a method for forming slit strips by the guide roll pressing type gang slitter apparatus will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a guide roll pressing gang slitter device 100 according to this embodiment includes an uncoiler 110 having a coil C formed by winding an aluminum metal band MB as a metal band, A plurality of aluminum metal bands MB drawn from C are simultaneously sheared along the longitudinal direction D1 (FIG. 5) of the aluminum metal bands MB by a plurality of disk-like upper blades 121 and a plurality of disk-like lower blades 122. The slitter 120 for forming the aluminum slit strips S1 and S2 as the slit strips, the recoiler 130 for winding the aluminum slit strips S1 and S2 in a coil shape on the same axis, and the coil C by braking the rotation of the coil C. As a tension adjusting mechanism that adjusts the speed of the drawn aluminum metal strip MB to maintain the tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2. And a rake mechanism 140 is installed in the installing part G.
The plurality of aluminum slit strips S1 and S2 include one or more upper aluminum slit strips S1 and one or more lower aluminum slit strips S2.
As a result, the guide roll pressing gang slitter apparatus 100 is configured so that the wide aluminum metal band MB is narrower than the width of the aluminum metal band MB in a state in which the aluminum metal band MB does not meander and sag. The aluminum slit strips S1 and S2 are sheared.

Aluminum metal strip MB has a predetermined width set in advance so that a plurality of aluminum slit strips S1 and S2 are formed by shearing.
Therefore, “wide” means that the slitter 120 is wide enough to form a plurality of aluminum slit strips S 1 and S 2 at the same time.
In the present embodiment, the aluminum metal strip MB has a width of 1000 to 1500 mm, for example, and the aluminum slit strips S1 and S2 have a width of 15 to 150 mm, for example.
Further, all of the plurality of aluminum slit strips S1, S2 have the same width.

As shown in FIGS. 2 and 3A, the slitter 120 is integrated with a pair of drive shafts 121A and 122A having rotation axes L1 and L2 parallel to each other, and an upper drive shaft 121A and a lower drive shaft 122A, respectively. And a disk-shaped upper blade 121 and a disk-shaped lower blade 122 that rotate in a straight line.
The plurality of upper blades 121 constituting the upper blade group are equally spaced in the rotational axis direction of the drive shaft 121A (also the width direction D2 of the aluminum metal strip MB and the width direction E2 of the aluminum slit strips S1 and S2). They are arranged side by side.
Similarly, the plurality of lower blades 122 constituting the lower blade group are provided side by side at equal intervals in the rotational axis direction of the drive shaft 122A.

Referring also to FIG. 4, the upper blade 121 that rotates about the upper rotation axis L1 parallel to the width direction D2 contacts the lower aluminum slit S2 by surface contact from above when the aluminum metal strip MB is sheared. It has an upper blade outer peripheral surface 121B.
On the other hand, the lower blade 122 that rotates about the lower rotation axis L2 has a lower blade outer peripheral surface 122B that comes into surface contact with the upper aluminum slit strip S1 from the lower side when the aluminum metal strip MB is sheared.
The cross-sectional shape of each of the outer peripheral surfaces 121B and 122B on a plane including the rotation axes L1 and L2 is a straight line parallel to the rotation axes L1 and L2.

When viewed from the width direction D2 (hereinafter referred to as “side view”), the upper blade 121 and the lower blade 122 adjacent to each other in the width direction D have lap portions 123 that overlap each other, and the upper blade outer peripheral surface 121B and the lower blade The blade outer peripheral surface 122B intersects with each other at the take-in side intersection 124 and the draw-out side intersection 125.
The take-in side intersection 124 is a shearing site where one aluminum metal strip MB is sheared by a plurality of aluminum slit strips S1 and S2.
The wrap portion 123 has a maximum width in a vertical direction (also a direction parallel to a straight line passing through both rotation axes L1 and L2), which is a direction orthogonal to the reference straight line N passing through both intersections 124 and 125 in a side view. And a wrap width H.

Referring also to FIG. 1, after the aluminum metal strip MB is pulled out from the coil C, the aluminum metal strip MB is applied to the uneven portion correcting roll 150A, the longitudinal muscle correcting upper roll 160A, and the longitudinal muscle correcting lower roll 160B in the width direction D2. Then, the sheet is supplied between the upper blade 121 and the lower blade 122 and sheared.
Each of the aluminum slit strips S1 and S2 has an upper blade 121 and a lower blade 122, and the aluminum metal strip MB is sheared simultaneously at the plurality of shearing portions arranged in the width direction D2, thereby having a cross section as described later. It is formed in the shape of a rectangular long band.

Referring to FIGS. 1 and 2, the guide roll pressing gang slitter apparatus 100 includes an upper slit guide roll 170 </ b> A, which is disposed on the slit strip drawing side from which the aluminum slit strips S <b> 1 and S <b> 2 are pulled out from the slitter 120. Side slit strip guide roll 170B, looping table inlet side roll R1, looping table outlet side roll R2, line separator pressing roll R3, line separator LS, slit strip pressing roll R4, bridle center roll R5, bridle inlet side roll R6, A plurality of aluminum slit strips S1 fed from the slitter 120 to the recoiler 130 through the rolls 170A, 170B, R1 to R7 and the separators LS, BS, including a bridle exit side roll R7 and a back separator BS. 2 the wound.
In addition, the thick black arrow in FIG. 1 has shown the advancing direction of the aluminum metal strip MB and the aluminum slit strips S1 and S2.

Next, a specific configuration that is the most characteristic feature of the guide roll pressing gang slitter apparatus 100 will be described.
As shown in FIGS. 1 and 3 (a), a guide roll pressing gang slitter device 100 is used for correcting a pair of uneven portions, both of which are arranged on the metal band taking side where the aluminum metal band MB is taken into the slitter 120. The rolls 150A and 150B, and the vertical muscle correcting upper roll 160A and the vertical bars that are disposed at positions closer to the slitter 120 than the straightening rolls 150A and 150B and shifted from each other along the traveling direction of the aluminum metal strip MB. The lower roll 160B for correction is provided.

  In the present embodiment, one of the pair of straightening rolls 150A and 150B disposed on the upper side and the lower side in the traveling region of the aluminum metal band MB, the one uneven surface correction roll, the upper side of the aluminum metal band MB. The straightening roll 150A that comes into contact with the aluminum metal band MB in the state of being arranged in the above is an example of the “roll for correcting uneven portions” of the present invention.

The straightening roll 150A is in contact with the aluminum metal strip MB supplied from the upper left direction of the straightening roll 150A in FIG.
The straightening roll 150A uniformly presses the aluminum metal strip MB from the upper side of the aluminum metal strip MB in the width direction D2 (FIG. 5).

  Thereby, even if it is a case where the aluminum metal strip MB is sheared into any narrow aluminum slit strips S1 and S2, the correcting roll 150A has an uneven portion P1 (FIG. 15) intermittently generated in the longitudinal direction D1. 16) is flattened in the width direction D2 to make the thickness of the aluminum metal strip MB uniform in the width direction D2, and the outer peripheral surfaces 121B and 122B of the upper blade 121 and the lower blade 122 are uneven portions P1. The aluminum metal band MB is sheared by contacting the upper and lower surfaces of the flattened aluminum metal band MB.

  More specifically, as shown in FIGS. 15 and 16, a center buckle formed near the center of the aluminum metal strip MB along the width direction D2 or near both side ends of the aluminum metal strip MB along the width direction D2. Even when the uneven portion P1 called a quarter buckle is generated in the aluminum metal band MB, the correction roll 150A presses the aluminum metal band MB from above, as shown in FIG. The uneven portion P1 is flattened to make the thickness of the aluminum metal band MB uniform.

For this reason, the wavy side ends of the aluminum slit strips S1 and S2, which are likely to occur by shearing the aluminum metal strip MB so as to be divided along the longitudinal direction D1 with the concavo-convex portion P1 generated as in the past, that is, FIG. The side end portions of the aluminum slit strips S1 and S2 are formed on the straight side end portions by correcting the wavy side end portions shown in FIG.
In other words, the aluminum slit strips S1 and S2 are formed in a rectangular cross section.

  Note that the aluminum metal band MB is supplied between the pair of correction rolls 150A and 150B from the diagonally lower left direction of the correction roll 150B in FIG. 1, so that the aluminum metal band MB contacts the correction roll 150B. In this case, the correction roll 150B disposed below the aluminum metal band MB is an example of the “uneven portion correction roll” of the present invention.

Next, the configuration of the uneven portion correcting roll 150A will be described in detail with reference to FIGS.
The straightening roll 150A includes a horizontal fixed shaft 151 that is curved and protrudes along the width direction D2, and a cylindrical roll body 152 that is curved along the axis 151A of the fixed shaft 151 and is loosely fitted to freely rotate. I have.
And the cylindrical roll body 152 has the roll body outer peripheral surface 153 which makes the aluminum metal strip MB contact and expand and expand toward the curved long bus | bath 155 side from the curved short bus | bath 154 side of the cylindrical roll body 152. ing.
Thereby, the correcting roll 150A not only presses the uneven portion P1 generated in the aluminum metal band MB, but also extends and flattens the uneven portion P1 along the width direction D2.
For this reason, the aluminum metal band MB in which the uneven portion P1 is reliably flattened is sheared by the slitter 120 into the aluminum slit strips S1 and S2.

  5 and 6, the horizontal protruding state of the straightening roll 150 </ b> A is exaggeratedly emphasized, but it is curved from the center of the roll of the cylindrical roll body 152 toward both roll ends. The degree of bending is such that the dimensional difference between the curved short bus 154 side and the curved long bus 155 side of the cylindrical roll body 152 is, for example, a ratio to the roll length of the cylindrical roll body 152 of 10/1000 at the maximum. The degree of satisfaction, preferably to the degree of satisfying 1/1000, or both roll end portions with respect to the center of the roll corresponds to the thickness of the aluminum metal band MB or the drop size of the uneven portion P1. It is set to be eccentric.

The correction roll 150 </ b> A includes a bearing that is disposed between the fixed shaft 151 and the cylindrical roll body 152 but is not illustrated.
The cylindrical roll body 152 rotates following the travel of the aluminum metal strip MB in contact with the roll body outer peripheral surface 153.
The eccentric angle of the fixed shaft 151, that is, the angle formed by the imaginary plane including the straight line connecting the both ends of the fixed shaft 151 and the curved long bus bar 155 with respect to the traveling direction of the aluminum metal strip MB is aluminum metal. It is set according to the material conditions such as the material, shape and thickness of the band MB and the processing conditions such as the traveling speed of the aluminum metal band MB.

The straightening roll 150B has the same configuration as the straightening roll 150A.
Then, when the aluminum metal strip MB is supplied from the lower left side in FIG. 1 when viewed from the correction roll 150B, the correction roll 150B rotates in the same drive form as the correction roll 150A.

The cylindrical roll body 152 is made of an elastic material.
Thereby, the cylindrical roll body 152 that rotates following the aluminum metal band MB moves from the curved short bus 154 side to the curved long mother 155 side and rotates to each of both ends of the correction roll 150A. Elastic elongation occurs in the cylindrical roll body 152 toward both ends of the straightening roll 150A.
For this reason, the aluminum metal strip MB in a state in which the uneven portion P1 is extended and flattened according to the elastic elongation of the cylindrical roll body 152 is sheared by the slitter 120.

  Referring to FIG. 3 (a) and FIG. 7, the vertical muscle correcting upper roll 160A and the vertical muscle correcting lower roll 160B are made of aluminum metal from both the upper side and the lower side of the aluminum metal strip MB in the width direction D2. Press the band MB uniformly.

  Thereby, even if the aluminum metal strip MB is sheared into any narrow aluminum slit strips S1 and S2, the straightening upper roll 160A and the straightening lower roll 160B are provided with an uneven portion P1 (FIG. 15). The vertical bars generated by maintaining the aluminum metal band MB flattened in a tension state, that is, the vertical bars P2 (FIGS. 17 and 18) generated in the aluminum metal band MB fed from the correction roll 150A. Then, the aluminum metal band MB flattened at a position closer to the slitter 120 than the straightening roll 150A and the thickness of the aluminum metal band MB is made uniform in the width direction D2 is supplied to the slitter 120 as it is.

  That is, the aluminum metal band MB is a state in which the uneven portion P1 is flattened and the vertical streak P2 generated by being maintained in a tension state is flattened at a position closer to the slitter 120 than the straightening roll 150A. As shown in FIG. 10, it is taken into the slitter 120 with the thickness made uniform and sheared into the aluminum slit strips S1 and S2.

For this reason, according to the guide roll pressing type gang slitter apparatus 100, the aluminum metal strip MB is sheared so as to be divided along the longitudinal direction D1 while the vertical stripe P2 is generated, and thus generated in the aluminum slit strips S1 and S2. Strain deformation at the side end portion, that is, generation of the wavy side end portion is suppressed.
As a result, the aluminum slit strips S1 and S2 are formed by shearing the aluminum metal strip MB so as to have a uniform width dimension over the longitudinal direction E1 (FIG. 21).

In addition, the guide roll pressing type gang slitter device 100 uses the straightening upper roll 160A and the straightening lower roll 160B in place of the metallic band intake side pads 560A and 560B shown in FIG. The running state of the
For this reason, aluminum slit strips S1 and S2 in which the scratches are alleviated by the amount that scratches due to at least the pads 560A and 560B do not occur in the aluminum metal strip MB are formed.

Referring also to FIG. 4, the lower correction roll 160B disposed closer to the slitter 120 than the upper correction roll 160A in the traveling direction is between the coil C and the slitter 120 in the traveling direction. In addition to the contact member that comes into contact with the aluminum metal band MB that is taken in last, the metal band guide roll presses the aluminum metal band MB from the lower side to the upper side.
The lower roll 160B for correction is in contact with the aluminum metal band MB above the reference straight line N in a side view, and defines the take-in inclination angle α of the aluminum metal band MB taken into the slitter 120 with respect to the reference straight line N. doing. The capture inclination angle α is an angle larger than 0 °.
As a result, the aluminum metal band MB drawn from the coil C (FIG. 1) of the uncoiler 110 is transferred to the slitter 120 from the upper side with respect to the reference straight line N in a state where the take-in inclination angle α is formed by the correction lower roll 160B. Since it is supplied, the upper pressing force, which is the pressing force with which the upper slit strip S1 that is in contact with the lower blade outer peripheral surface 122B from the upper side presses the lower blade outer peripheral surface 122B, is lower than the intake side intersection 124. It decreases by the upward component force of the tension F (FIG. 1) acting on the aluminum metal band MB at a position close to 160B.
For this reason, it is possible to form the upper aluminum slit strip S1 in which the scratch due to relative sliding with the lower blade outer peripheral surface 122B is reduced, and to improve the quality of the upper aluminum slit strip S1.

The take-in inclination angle α is such that the upper aluminum slit strip S1 presses the lower blade outer peripheral surface 122B downward, and the lower aluminum slit strip S2 presses the upper blade outer peripheral surface 121B upward. However, all are set so that it may become below permissible pressing force.
Here, the allowable pressing force is such that when the aluminum metal strip MB on which the maximum value of tension is applied is taken into the slitter 120 in the standard take-up angle state, the upper aluminum slit strip S1 under the action of the maximum value of tension is The pressing force is smaller than a standard pressing force that is a pressing force for pressing the lower blade outer peripheral surface 122B from above.
The taking-in angle state is an angle state between the aluminum metal band MB and the reference straight line N when the aluminum metal band MB is taken into the slitter 120.
The standard take-in angle state is the take-in angle state when the angle formed between the aluminum metal strip MB and the reference straight line N is 0 °, that is, when the aluminum metal strip MB is positioned on the reference straight line N. It is.
When the upper aluminum slit strip S1 and the lower aluminum slit strip S2 press the lower blade outer peripheral surface 122B and the upper blade outer peripheral surface 121B with an allowable pressing force, respectively, the upper blades in the aluminum slit strips S1 and S2 Abrasion caused by relative sliding with the outer peripheral surface 121B or the lower blade outer peripheral surface 122B falls within an allowable range from the viewpoint of the quality of the aluminum slit strips S1 and S2.

The reference pressing force and the allowable pressing force are detected by a pressing force sensor (for example, a load cell) that detects the pressing force.
In the preparation step before manufacturing the aluminum slit strips S1 and S2, the maximum inclination of the loading inclination angle α is applied to the aluminum metal strip MB and the aluminum slit strips S1 and S2 using a pressing force sensor. In this state, the upper pressing force and the lower pressing force are set to be equal to or less than the allowable pressing force.

  As described above, since the intake inclination angle α is set so that the upper pressing force and the lower pressing force are both equal to or less than the allowable pressing force, the upper pressing force and the lower pressing force are equal to or less than the allowable pressing force. Therefore, the upper aluminum slit is reduced in comparison with the scratch generated in the upper aluminum slit strip S1 that presses the outer peripheral surface 122B of the lower blade with the standard upper pressing force. Strips S1 and lower aluminum slit strips S2 can be formed.

The take-in inclination angle α is set to, for example, an angle θ (FIG. 4) or less formed by the tangent line of the upper blade outer peripheral surface 121B and the reference straight line N at the take-in side intersection 124 when viewed from the width direction.
Thereby, the aluminum slit strip S1 caused by deformation of the aluminum metal strip MB caused by the contact portion and the non-contact portion with the upper blade outer peripheral surface 121B being alternately generated in the width direction closer to the uncoil 110 than the take-in side intersection 124, It is possible to prevent a decrease in dimensional accuracy of S2.
Moreover, the lower aluminum slit strip S2 is caused by relative sliding with the upper blade outer peripheral surface 121B due to an increase in the tension-related pressing force in the lower pressing force with which the lower aluminum slit strip S2 presses the upper blade outer peripheral surface 121B. An increase in scratches can be suppressed.
FIG. 4 shows a case where the capture inclination angle α is an angle θ.

Next, with reference to FIGS. 7 and 8, the configuration of the longitudinal muscle straight upper roll 160A will be described in detail.
The straightening upper roll 160A includes a roll outer peripheral pressing surface 161A of an inverted V-shaped striped pattern 162A that inclines and develops symmetrically from the roll center 163 toward the roll side 164.
The reverse V-shaped striped pattern 162A of the roll outer peripheral pressing surface 161A is composed of pressing strips 162AH and 162AL having different friction coefficients.
Thereby, the roll outer peripheral pressing surface 161A not only presses the vertical streak P2 along only the vertical direction of the upper surface and the lower surface of the aluminum metal strip MB, but also the aluminum from the pressing stripes 162AH and 162AL toward the outside in the width direction D2. The metal strip MB is spread and the vertical bar P2 is extended.
For this reason, the aluminum metal band MB in which the vertical bars P2 are reliably flattened is sheared by the slitter 120.
In addition, although the uneven | corrugated | grooved part correction roll 160B is provided with the roll outer periphery pressing surface 161B which has the same friction coefficient in the example of illustration, as another example, even if it has the same structure as the correction roll 150A Good.
Furthermore, as another example of the correction roll 160A, the roll outer peripheral pressing surface 161A may have the same friction coefficient.

Further, as shown in FIG. 3A, the upper slit guide roll 170A and the lower slit guide roll 170B, both of which are slit guide rolls, are arranged on the upper and lower sides in the traveling region of the aluminum slit strips S1 and S2. Slit strip suppression that is in contact with the aluminum slit strips S1 and S2 from both sides in the entire width direction E2 (FIG. 21) and suppresses the vertical movement of the aluminum slit strips S1 and S2 in cooperation with each other. Also serves as an upper roll and a lower roll for suppressing slits.
Thereby, the running state of the aluminum slit strips S1 and S2 is obtained by using the upper slit strip guide roll 170A and the lower slit strip guide roll 170B instead of the above-described slit strip-side pads 570A and 570B (FIG. 14). Stabilized.
For this reason, not only the scratches generated in the aluminum metal strip MB but also the scratches in the aluminum slit strips S1 and S2 immediately after being pulled out from the slitter 120 are prevented.

The upper slit guide roll 170A is a slit guide roll that the upper aluminum slit S1 first contacts and presses on the slit drawing side with respect to the slitter 120, and contacts the upper aluminum slit S1 from above on the reference straight line N. To do.
The lower slit guide roll 170B is a slit guide roll that the lower aluminum slit S2 first comes into contact with and presses on the slit draw-out side. From the lower side to the lower aluminum slit S2 on the reference straight line N Contact.
3B and 3C, the upper slit guide roll 170AB is disposed farther from the slitter 120 in the traveling direction than the lower slit guide roll 170B. The upper drawing inclination angle β1 with respect to the reference straight line N of the strip S1 is defined.
The lower slit guide roll 170B defines the pulling inclination angle β2 of the lower aluminum slit S2 with respect to the reference straight line N.
Both inclination angles β1 and β2 are acute angles.
The upper drawer inclination angle β1 is a positive angle (shown in FIG. 3 (b)) when it is directed from the reference straight line N to the upper aluminum slit S1 in the clockwise direction (counterclockwise direction). .
On the other hand, the lower drawer inclination angle β2 is defined as a positive angle (shown in FIG. 3C) when going from the reference straight line N to the lower aluminum slit S2 in the counterclockwise direction.

The upper drawer inclination angle β1 is smaller than the lower drawer inclination angle β2.
Accordingly, the tension-related pressing force by which the upper aluminum slit strip S1 presses the outer peripheral surface 122B of the lower blade is reduced, and accordingly, the upper pressing force is reduced and the upper aluminum slit strip S1 is further reduced. can do.

As shown in FIG. 1, the control unit 180 that controls the brake mechanism 140 according to the winding state of the recoiler 130 is connected to the brake mechanism 140 and the recoiler 130.
Accordingly, the tension applied to the aluminum slit strips S1 and S2 is adjusted with the aluminum slit strips S1 and S2 sandwiched between the tension pads to maintain the tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2. The tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2 is always maintained.
That is, the tension F applied to the aluminum metal strip MB and the aluminum slit strips S1 and S2 is controlled according to the winding state of the recoiler 130.
Therefore, the guide roll pressing gang slitter device 100 can prevent the aluminum slit strips S1 and S2 from being scratched due to the contact friction between the aluminum slit strips S1 and S2 and the tension pad as in the prior art. .

The control unit 180 also controls the aluminum metal strip MB and the aluminum so as to maintain the winding length of the aluminum slit strips S1 and S2 wound around the recoiler 130 and the tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2. The brake mechanism 140 is controlled based on correlation data including a correlation with the tension applied to the slit strips S1 and S2.
Thereby, the optimum tension F acting on the aluminum metal strip MB and the aluminum slit strips S1 and S2 is set in consideration of process conditions such as the winding length of the aluminum slit strips S1 and S2 and temperature change.

Based on FIG.1 and FIG.11, the structure of the main control elements which concern on the guide roll press type gang slitter apparatus 100 is demonstrated in detail.
The guide roll pressing gang slitter device 100 includes an uncoiler 110, a slitter 120, a slitter drive motor M1, a recoiler 130, a recoiler drive motor M2, a brake mechanism 140, a control unit 180, and a sensor unit 190.

The control unit 180 includes a correlation data storage device 181, an uncoiler control unit 182, a pass line control unit 183, a line speed control unit 184, and a recoiler control unit 185.
The control unit 180 controls the brake mechanism 140 based on the data measured by the sensor unit 190, and controls the slitter drive motor M1 and the recoiler drive motor M2 that drive the slitter 120 and the recoiler 130, respectively.

The sensor unit 190 includes a slitter drive motor rotation speed measurement sensor 191, a line speed measurement sensor 192, a recoiler drive motor rotation speed measurement sensor 193, a tension measurement sensor 194, a temperature measurement sensor 195, and a recoiler outer diameter measurement ultrasonic wave. A sensor 196 is provided.
Measurement data measured by each of the sensors described above is supplied to the control unit 180.

A control method of the guide roll pressing gang slitter apparatus 100 will be described in detail with reference to FIGS. 1 and 11 to 13.
First, when the guide roll pressing gang slitter device 100 is started or operated, the tension F data input by the operator or the reference tension data such as the tension F of the aluminum slit strips S1 and S2 measured by the tension measuring sensor 194 are: The data is input to the correlation data storage device 181 (step S1).
The correlation data storage device 181 stores correlation data CD including a reference tension data and a reference tension control curve indicating an optimum tension correlation in advance.

  Next, the uncoiler control unit 182 reads the correlation data CD from the correlation data storage device 181 (step S2).

Next, the pass line control unit 183 and the line speed control unit 184 control the traveling speed, that is, the line speed of the aluminum metal strip MB and the aluminum slit strips S1 and S2 (step S3).
More specifically, the pass line control unit 183 supplies a rotation speed control signal of the slitter drive motor M1 to the slitter drive motor M1 (step S4).
In parallel with this, the rotation speed measurement sensor 191 of the slitter drive motor measures the rotation speed of the slitter drive motor M1 (step S5).

In parallel with steps S4 and S5, the line speed control unit 184 supplies a rotation speed control signal for the recoiler drive motor M2 (step S6).
In parallel with this, the rotational speed measurement sensor 193 of the recoiler drive motor measures the rotational speed of the recoiler drive motor M2 (step S7).

Next, the line speed measuring sensor 192 measures the actual traveling speed of the aluminum metal strip MB and the aluminum slit strips S1, S2, that is, the actual line speed V (step S8).
Next, the line speed control unit 184 determines whether or not the actual line speed V and the set line speed V0 match each other (step S9). When the procedure after step S3 is executed and it is determined that they match, the recoiler outer diameter measuring ultrasonic sensor 196 measures the recoiler outer diameter to measure the winding length of the aluminum slit strips S1 and S2. The length L is measured (step S10).

Next, the tension measuring sensor 194 measures the tension F of the aluminum slit strips S1 and S2 (step S11).
Next, the uncoiler control unit 182 calculates the corrected tension Fa by correcting the tension F based on the temperatures of the aluminum slit strips S1 and S2 measured by the temperature measurement sensor 195 (step S12).

Next, the uncoiler control unit 182 determines whether or not the corrected tension Fa is less than the set tension Fs (step S13).
If it is determined in step 13 that the corrected tension Fa is greater than or equal to the set tension Fs, the procedure after step S10 is executed again.
The set tension Fs is a target tension to be applied to the aluminum metal strip MB and the aluminum slit strips S1 and S2 in accordance with the rotation speed of the slitter drive motor M1 and the rotation speed of the recoiler drive motor M2, that is, aluminum. The tension which maintains the metal strip MB and the aluminum slit strips S1 and S2 in a tension state.

Here, as shown in FIG. 13, the set tension Fs is defined by the correlation data CD.
More specifically, for example, the correlation data CD is a reference tension control curve showing the correlation between the slit winding length L and the set tension Fs.
When the slit strip winding length L is the length L1, the correction tension Fa for tensioning the aluminum metal strip MB and the aluminum slit strips S1 and S2 is set to be equal to or higher than the set tension Fs1.
When the slit winding length L is the length L2, the correction tension Fa is set to be equal to or greater than the set tension Fs2.

Next, when it is determined in step 13 that the corrected tension Fa is less than the set tension Fs, the uncoiler control unit 182 controls the brake mechanism 140 composed of an electropneumatic proportional brake, a powder brake, etc. to control the aluminum metal strip. The tension F acting on the MB and the aluminum slit strips S1, S2 is increased, and the tension state of the aluminum metal strip MB and the aluminum slit strips S1, S2 is maintained. (Step S14).
More specifically, the brake mechanism 140 regulates the rotational operation of the coil C to increase the tension F so that the correction tension Fa is equal to or higher than the set tension Fs, and the tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2 To maintain.
Then, the tension F is set to a value smaller than the maximum value with the maximum value as an upper limit during the operation of the guide roll pressing gang slitter device 100.
By such an operation of the brake mechanism 140, the tension state of the aluminum metal strip MB and the aluminum slit strips S1 and S2 is maintained without using the tension pad, so the tension pad, the aluminum metal strip MB and the aluminum slit strip S1, Generation of scratches on the aluminum metal strip MB and the aluminum slit strips S1 and S2 due to contact with S2 is prevented.

Hereinafter, an example in which a part of the configuration of the above-described embodiment is changed will be described with respect to the changed configuration.
When the aluminum metal band MB is supplied to the metal band guide roll from a position above the metal band guide roll that defines the take-in inclination angle α, the metal band guide roll moves the aluminum metal band MB downward from the upper side. You may contact this aluminum metal band MB so that it may press to the side.
On the slit drawing side, the upper aluminum slit strip S1 and the lower aluminum slit strip S2 may be pressed and contacted with the common slit guide roll above the reference straight line N and above. Also in this case, the upper drawer inclination angle β1 is smaller than the lower drawer inclination angle β2.
The lower slit strip guide roll 170B may be disposed at a position below the reference straight line N so as to press the lower aluminum slit strip S2 from above.
In this case, even when the take-in inclination angle α is large, the lower pull-out inclination angle β2 becomes small, so that the tension-related pressing force in the lower pressing force is reduced, and the relative sliding with the outer peripheral surface 121B of the upper blade is reduced. The resulting scratch on the lower aluminum slit strip S2 can be reduced.
Further, the guide roll pressing gang slitter device may include a tension sensor that detects the tension acting on the aluminum metal strip MB and the aluminum slit strips S1 and S2.
In this case, by actually feeding back the tension detected by the tension sensor to the control unit, the tension actually acting on the aluminum metal strip MB and the aluminum slit strips S1 and S2 is optimized to ensure the aluminum metal strip MB and the aluminum slit. The tension state of the strips S1 and S2 can be maintained.

DESCRIPTION OF SYMBOLS 100 ... Guide roll press type gang slitter apparatus 110 ... Uncoiler 120, 520, 620 ... Slitter 121, 521, 621 ... Disk-shaped upper blade 121A ... Drive shaft of disk-shaped upper blade 121B ... Upper blade outer peripheral surface 122, 522, 622 ... Disk-shaped lower blade 122A ... Drive shaft of the disk-shaped lower blade 122B ... Lower blade outer peripheral surface 123 ... Lapping part 124 · Take-in side intersection 125 ··· Draw-out side intersection 130 ··· Recoiler 140 · · · Brake mechanism 150A, 150B · · · Concavity and convexity portion correction roll 151 ··· Fixed shaft 151A · · · Fixed shaft axis 152 · ..Cylindrical roll body 153... Roll body outer peripheral surface 154... Curved short bus bar 155... Curved long bus bar 160A. Side roll 160B ... Lower roll for vertical muscle correction 161A ... Roll outer peripheral pressing surface 162A ... Reverse V-shaped striped pattern 162AH, 162AL ... Pressing stripe part 163 ... Roll center 164 ... Roll side 170A ... Upper slit guide roll 170B ... Lower slit guide roll 180 ... Control unit 181 ... Correlation data storage device 182 ... Uncoiler control unit 183 ... Pass line Control unit 184 ・ ・ ・ Line speed control unit 185 ・ ・ ・ Recoiler control unit 190 ・ ・ ・ Sensor unit 191 ・ ・ ・ Sensor for measuring the number of rotations of drive motor for slitter 192 ・ ・ ・ Line speed measurement sensor 193 ・ ・ ・ For recoiler Rotational speed measurement sensor for drive motor 194 ... Tension measurement sensor 195 ... Temperature measuring sensor 196 ・ ・ ・ Ultrasonic sensor for measuring the outer diameter of the recoiler 560A, 560B ・ ・ ・ Metal band loading side pad 570A, 570B ・ ・ ・ Slit strip drawing side pad M1 ・ ・ ・ Slitter drive motor M2 ・ ・ ・ Recoiler Drive motor BS ... Back separator C ... Coil CD ... Correlation data D1 ... Longitudinal direction of metal strip D2 ... Width direction of metal strip E1 ... Longitudinal direction of slit strip E2・ ・ Width direction of slit strip F ・ ・ ・ Tension acting on metal strip and slit strip Fs ・ ・ ・ Set tension Fa ・ ・ ・ Correction tension H ・ ・ ・ Lapping amount L1 ・ ・ ・ Upper rotation axis L2 ・ ・ ・Lower rotation axis LS ... Line separator MB ... Aluminum metal strip N ... Reference straight line S1 ... Aluminum upper slit strip S2・ ・ ・ Aluminum lower slit strip SB ・ ・ ・ Aluminum slit strip P1 ・ ・ ・ Uneven portion P2 ・ ・ ・ Vertical streak Q ・ ・ ・ Wavy side end R1 ・ ・ ・ Looping table inlet side roll R2 ・ ・ ・ Looping table Outlet side roll R3 ・ ・ ・ Line separator pressing roll R4 ・ ・ ・ Slit strip pressing roll R5 ・ ・ ・ Bridle center roll R6 ・ ・ ・ Bridle inlet side roll R7 ・ ・ ・ Bridle outlet side roll G ・ ・ ・ Guide roll Installation portion of the pressing type gang slitter device ΔW ... Length extending flat along the width direction of the slit strip α ... Taking-in inclination angle β1 ... Upper drawer inclination angle β2 ... Lower drawer inclination angle θ・ ・ ・ Angle

Claims (6)

The uncoiler around which the metal band is wound and the metal band drawn out from the uncoiler are sheared along the longitudinal direction of the metal band by a plurality of rotating disk-shaped upper blades and a plurality of disk-shaped lower blades A slitter that is processed to form a plurality of slit strips composed of one or more upper slit strips and one or more lower slit strips, and the metal strip between the coil and the slitter in the traveling direction of the metal strip; A metal strip guide roll that contacts in the width direction, a recoiler that winds the plurality of slit strips in a coil shape, and a metal strip drawn from the coil is suppressed to maintain the tension state of the metal strip and the slit strip. A tension adjusting mechanism, and the disk-shaped upper blade has an upper blade outer peripheral surface that contacts the lower slit strip from above during shearing, and the disk-shaped lower blade is sheared. In the guide roll press-type gang slitter apparatus with a lower blade outer peripheral surface contacting the lower side serial upper slit strip,
The metal band guide roll is in contact with the metal band above a reference straight line passing through an intake side intersection and an extraction side intersection where the upper blade outer peripheral surface and the lower blade outer peripheral surface intersect when viewed from the width direction. And a guide roll pressing type gang slitter device characterized by defining an inclination angle of the metal strip taken into the slitter with respect to the reference straight line.   2. The guide roll pressing according to claim 1, wherein the take-in inclination angle is equal to or less than an angle formed by a tangent line of the outer peripheral surface of the upper blade and the reference straight line at the take-in side intersection when viewed from the width direction. Type gang slitter device.   Standard upper pressing force with which the upper slit strip presses the outer peripheral surface of the lower blade when the metal band on which the maximum tension is applied is taken into the slitter in a standard taking-in angle state located on the reference straight line When the smaller pressing force is set to the allowable pressing force, the take-in inclination angle is determined by the upper pressing force by which the upper slit strip presses the outer peripheral surface of the lower blade and the lower slit strip presses the outer peripheral surface of the upper blade. The guide roll pressing gang slitter device according to claim 1 or 2, wherein a lower pressing force is set to be equal to or lower than the allowable pressing force. A slit strip guide roll in contact with the upper slit strip and the lower slit strip on the slitter strip drawing side with respect to the slitter,
The slit strip guide roll defines an upper drawer inclination angle with respect to the reference straight line of the upper slit strip, and a lower drawer inclination angle with respect to the reference straight line of the lower slit strip, respectively.
The guide roll pressing gang slitter device according to any one of claims 1 to 3, wherein the upper drawer inclination angle is smaller than the lower drawer inclination angle. By pressing the metal strip uniformly from either the upper side or the lower side in the width direction, the uneven portions that are intermittently generated in the longitudinal direction of the metal strip are flattened, and the metal strip Provided with a roll for correcting uneven parts that uniformizes the thickness across the width direction,
The guide roll according to any one of claims 1 to 4, wherein the uneven part correcting roll is disposed between the coil and the metal strip guide roll in the traveling direction. Press type gang slitter device.   The metal band guide roll presses the metal band in the width direction, thereby flattening vertical stripes extending in the longitudinal direction of the metal band and equalizing the thickness of the metal band in the width direction. The guide roll pressing type gang slitter device according to any one of claims 1 to 5, wherein the guide roll pressing type gang slitter device is a lower roll for straight muscle correction.

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