JP4723459B2 - Method and apparatus for preventing wrinkle generation during winding of rolled sheet - Google Patents

Description

  In the present invention, when a rolled sheet is wound into a coil shape by a winding shaft, wrinkles are generated in the rolled sheet while applying pressing pressure by an iron roller to the outer surface of the rolled sheet wound in the coil shape. The present invention relates to a method and an apparatus for preventing wrinkling during winding of a rolled thin sheet that is wound without being wound.

  When a rolled thin plate made of stainless steel or copper (rolled material having a thickness of about 0.05 mm or less) is wound on a spool mounted on a winding shaft of a winding device, wrinkles are generated and wound. There is a case where it becomes defective. In a winding device that is not equipped with an effective device for preventing such wrinkle generation, wrinkle generation is prevented by a rolling operation device that increases the winding tension or slows the rolling speed. It was.

  A winding device and a winding method according to a conventional example aimed at preventing such wrinkle generation will be described below with reference to FIG. FIG. 4 is an explanatory view of a main part of a metal foil strip winding device showing an embodiment according to a conventional example.

  The winding device for the metal foil strip according to the conventional example is a winding device for the winding core 31 that applies winding torque to the winding core 31 in the winding device for the metal foil strip that winds the metallic foil strip around the winding core. The touch roller 34 that contacts the outer periphery of the winding coil 33 of the metal foil strip S formed on the winding core 31 during winding at the required contact pressure, and the feeding roller 35 that feeds the metal foil strip S to the touch roller 34. A final nip roller 36 that can guide the metal foil strip S fed from the feed roller 35 to be wound around the touch roller 34 and press the metal foil strip S against the touch roller 34, and a torque adjustment mechanism 37 of the touch roller 34. And.

  In such a winding device, the winding method of the metal foil strip S according to the conventional example is such that the torque adjusting mechanism 37 adjusts the torque of the touch roller 34 to locally apply the metal foil strip S to the metal foil strip S. This is a method in which a winding force is applied to the winding core 31 by the winding core driving mechanism 32 while applying a necessary stretching force to remove the slack (see Patent Document 1).

However, the winding device according to the conventional example is composed of a complicated roller configuration and a control mechanism, so that the equipment cost is great. In addition, the winding method of the winding device is an upper winding method for winding a metal foil strip from above the winding core, so that the rolled material is made of stainless steel or copper material by a lower winding method that winds from below the spool. It cannot be applied to the winding of thin plates.
Further, as is apparent from FIG. 4, there are many rollers that come into contact with the metal foil strip, and there is a problem that the possibility of occurrence of slip scratches or dent scratches due to contact with the rollers increases.

  As a wrinkle prevention in such a lower winding type winding device, a winding device provided with an iron roller for applying a pressing pressure to a rolled thin sheet during winding has been used conventionally. Since the winding point is the lower part of the spool mounted on the winding shaft, the ironing roller must be a type that presses against the lower part of the spool. Therefore, the pressing pressure to the rolled thin sheet set at the start of winding greatly changes under the influence of the iron roller's own weight as the winding coil diameter increases, and the winding takes place over the entire coil from the start to the end of rolling. Wrinkle generation may not be prevented.

  That is, if the pressing setting pressure of the ironing roller at the start of winding is too high, wrinkles will be caught due to excessive pressing, resulting in breakage and defective products. Such a problem does not occur at the start of rolling, but may occur when the coil diameter increases. The product failure due to the folding may be transferred to the inside of the coil due to the coil tightening force. In this case, the inside of the coil to which the influence of the folding is transferred becomes a product failure.

Conversely, if the pressing pressure of the iron roller set at the start of winding is too low, ironing cannot be performed uniformly in the plate width direction, and air is entrapped into the coil at a certain point in the plate width direction at the start of winding. In some cases, wrinkled wrinkles may occur due to the entrained air. In this case, wrinkles may be transferred at a certain winding thickness. When such winding wrinkles occur, when the coil is rewound in the next step, defects such as scratches, breaks, dents, uneven gloss, etc. occur on the surface of the thin sheet to be rolled, resulting in defective products.
JP 2001-150021 A

  Accordingly, an object of the present invention is to provide a simple and low-cost rolled sheet that does not cause a product failure such as winding wrinkles or breakage in the rolled sheet without changing the pressing pressure on the rolled sheet depending on the winding coil diameter. It is an object of the present invention to provide a method and an apparatus for preventing wrinkling during winding.

In order to achieve the above object, the means adopted by the method for preventing wrinkling at the time of winding a rolled thin sheet according to claim 1 of the present invention is that when the rolled thin sheet is wound into a coil shape by a winding shaft, In the method for preventing wrinkle generation when winding a rolled thin sheet that is wound without causing wrinkles on the rolled thin sheet while applying pressing pressure to the outer surface of the rolled thin sheet wound in a shape by an iron roller, the iron as contact pressure against the rolled sheet roller is maintained at a predetermined pressure, said at winding in response to a change in the coil diameter of the rolling sheet, while correcting the weight of the iron roller, the said ironing roller Control is performed such that the pressing pressure to the rolled thin sheet wound in a coil shape is maintained at a predetermined pressure.

The means adopted by the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to claim 2 of the present invention includes a winding shaft for winding the rolled thin sheet in a coil shape, and a covered sheet wound in the coil shape. An apparatus for preventing wrinkling at the time of winding a rolled thin sheet, wherein the rolled thin sheet can be wound without generating wrinkles. sometimes as the pressing pressure with respect to the rolled sheet was coiled of the ironing roller is maintained to a predetermined pressure in response to the change in the coil diameter of the rolled sheet during winding, wherein the iron roller includes a pressing pressure maintaining means for maintaining the pressing pressure to the rolled sheet was coiled to a predetermined pressure, the contact pressure maintaining means, the pressing pressure to the rolled sheet was wound into a coil shape Equipped with a controller for controlling the pressure to a predetermined pressure Becomes, the controller is intended, characterized in that it comprises an ironing roller the own weight correcting means for correcting the weight of the iron rollers in response to a change in coil diameter.

  The means adopted by the apparatus for preventing wrinkling at the time of winding the rolled sheet according to claim 3 of the present invention is the apparatus for preventing wrinkling at the time of winding the rolled sheet according to claim 2, wherein the ironing roller comprises: The ironing roller is supported by an ironing roller support member so as to be able to advance and retreat, and the pressing pressure maintaining means further applies a pressing pressure to the coiled thin sheet of the ironing roller via the ironing roller support member. It is characterized by comprising pressing pressure applying means.

  The means adopted by the apparatus for preventing wrinkling during winding of a rolled sheet according to claim 4 of the present invention is the apparatus for preventing wrinkling during winding of a rolled sheet according to claim 2 or 3, wherein The roller support member is provided with contact pressure relaxation means for relaxing the contact pressure between the iron roller and the rolled thin sheet being wound.

  The means adopted by the apparatus for preventing wrinkling at the time of winding the rolled sheet according to claim 5 of the present invention is the generation of wrinkles at the time of winding the rolled sheet according to any one of claims 2 to 4. In the prevention apparatus, the winding method of the winding shaft is a lower winding method in which the thin sheet to be rolled is wound from below the winding shaft or the spool mounted on the winding shaft. .

According to the method for preventing wrinkling at the time of winding a rolled thin sheet according to claim 1 of the present invention, when the rolled thin sheet is wound into a coil shape by a winding shaft, In the method of preventing wrinkle generation when winding a rolled thin sheet that is wound without causing wrinkles on the rolled thin sheet while applying a pressing pressure to the outer surface by an iron roller, the pressing pressure of the iron roller against the rolled thin sheet is predetermined. The rolled thin sheet wound in the coiled shape of the ironing roller while correcting the weight of the ironing roller according to the change in the coil diameter of the rolled thin sheet during winding so as to be maintained at the pressure Is controlled so as to maintain the pressing pressure on the coil at a predetermined pressure, so that the influence of the iron roller's own weight on the pressing pressure accompanying an increase in the coil diameter is eliminated, and the rolled thin sheet from the start to the end of winding of the coil By applying a certain pressing pressure, winding takes without causing quality defects such as winding wrinkles or bending, thereby contributing to the improvement of product yield.

According to the apparatus for preventing wrinkling of a rolled thin sheet according to claim 2 of the present invention, a winding shaft for winding the rolled thin sheet in a coil shape, and a covered sheet wound in the coil shape. An apparatus for preventing wrinkling at the time of winding a rolled thin sheet, wherein the rolled thin sheet can be wound without generating wrinkles. sometimes as the pressing pressure with respect to the rolled sheet was coiled of the ironing roller is maintained to a predetermined pressure in response to the change in the coil diameter of the rolled sheet during winding, wherein the iron roller includes a pressing pressure maintaining means for maintaining the pressing pressure to the rolled sheet was coiled to a predetermined pressure, the contact pressure maintaining means, the pressing pressure to the rolled sheet was wound into a coil shape Equipped with a controller for controlling the pressure to a predetermined pressure Therefore, the controller includes an iron roller self-weight correcting unit that corrects the self-weight of the iron roller according to a change in the coil diameter, so that the influence of the iron roller self-weight on the pressing pressure accompanying the increase in the coil diameter is eliminated. In addition, it is possible to provide a low-cost winding device with a simple configuration that contributes to an improvement in product yield without causing quality defects such as winding wrinkles and breakage.

  Furthermore, according to the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to claim 3 of the present invention, the iron roller is supported by the iron roller support member so as to be able to advance and retreat, and the pressing pressure maintaining means includes: Furthermore, the ironing roller pressing pressure applying means for applying pressing pressure to the coiled thin sheet of the iron roller via the ironing roller support member is provided, so that the pressing of the ironing roller to the thin sheet of rolling is performed. By controlling the pressure, the pressing pressure against the thin sheet to be rolled is reliably maintained at a predetermined pressure.

  Still further, according to the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to claim 4 of the present invention, the iron roller support member relieves the contact pressure between the iron roller and the rolled thin sheet being wound. Since the contact pressure relaxation means is provided, the fluctuation of the contact pressure due to the delicate unevenness of the wound coil surface is absorbed.

  Moreover, according to the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to claim 5 of the present invention, the winding method of the winding shaft is the winding shaft or a spool mounted on the winding shaft. Therefore, it is most suitable for winding a rolled thin plate made of stainless steel or drawn copper.

  First, a wrinkle generation preventing method and apparatus during winding of a rolled thin sheet according to Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of a principal part showing a principal part of a wrinkle generation preventing apparatus during winding of a rolled thin sheet according to Embodiment 1 of the present invention, and FIG. 2 is a partial cross-sectional view taken along line XX of FIG. FIG. 3 is a flowchart showing a setting procedure of the pressing pressure setting means of the electropneumatic regulator according to the first embodiment of the present invention.

  First, an outline of a wrinkle generation preventing method and apparatus during winding of a rolled thin sheet according to Embodiment 1 of the present invention will be described with reference to FIG. Reference numeral 1 denotes a winding shaft, and a spool 2 is mounted on the winding shaft 1. By rotating the winding shaft 1 by a drive system (not shown), the thin sheet 3 to be rolled is wound on the spool 2 from below. Reference numeral 4 denotes an ironing roller. The ironing roller 4 is supported on the lower end side of the ironing roller support member 5 through a bearing box 7 so as to be rotatable.

  The iron roller support member 5 has an upper end rotatably supported by a fulcrum shaft 6, and an iron roller pressing pressure applying means is provided at an intermediate portion between the fulcrum shaft 6 and the bearing box 7 via a support pin 9. 8 is attached. The ironing roller pressing pressure applying means 8 is expanded and contracted to move the ironing roller 4 forward or backward (indicated by an arrow in FIG. 1) in the direction of the winding shaft 1, and the coiled covering of the ironing roller 4. It is comprised so that the pressing pressure to the rolling thin plate 3 may be provided.

  That is, a one-dot chain line in FIG. 1 shows a pressing pressure application state at the start of winding when the ironing roller 4 is advanced in the direction of the winding shaft 1, and a solid line indicates the diameter of the coil 3 a wound on the spool 2. Shows a pressing pressure application state when the iron roller 4 is retracted. Then, the pressing pressure is maintained at a predetermined pressure by the iron roller pressing pressure applying means 8 and a controller (not shown) which is configured to control the pressing pressure on the thin sheet to be rolled to a predetermined pressure. The pressing pressure maintenance means for doing is comprised.

  The iron roller 4 is disposed so that the contact point thereof coincides with the winding point P1 of the thin sheet 3 to be wound on the spool 2 at the start of winding, and coincides with the winding point P2 of the coil 3a after the start of winding. At the winding point P <b> 1 or P <b> 2, the ironing roller pressing pressure applying means 8 presses the ironing roller 4 in the direction of the coil 3 a to apply pressing pressure to the thin sheet 3 to be rolled. The reason why the iron roller 4 is arranged so as to substantially coincide with the winding point on the spool 2 or the coil 3a is to eliminate air from being caught inside the rolled sheet 3 wound in a coil shape.

  And the iron roller pressing pressure applying means according to the change in the diameter of the coil 3a wound on the spool 2 so that the pressing pressure of the iron roller 4 against the rolled sheet 3 is maintained at a predetermined pressure. The iron roller support member 5 is advanced and retracted by 8 so that the pressing pressure of the iron roller 4 is controlled by an iron roller pressing pressure control means described later housed in the controller.

  In the rolled thin plate winding apparatus configured as described above, the wrinkle generation preventing method when winding the rolled thin plate 3 according to Embodiment 1 of the present invention is performed on the rolled thin plate 3 of the iron roller 4. The ironing roller support member 5 is advanced and retracted by the pressing pressure maintaining means in accordance with a change in the diameter of the coil 3a of the rolled thin sheet 3 during winding so that the pressing pressure is maintained at a predetermined pressure, and the ironing roller 4 is a method for controlling the pressing pressure on the coiled thin sheet 3 having a coil shape.

  Next, with reference to FIG. 2 and FIG. 3 together, the method and apparatus for preventing wrinkle generation when winding the rolled thin sheet according to Embodiment 1 of the present invention will be described in more detail. The iron roller support member 5 includes two iron roller support members supported on a fulcrum shaft 6 fixed to a roller arm frame 13 so as to be rotatable via a bearing 11, that is, a workpiece side (hereinafter referred to as WS). And an iron roller arm 5a and a driving side (hereinafter abbreviated as DS) iron roller arm 5b. Then, both ends of the iron roller 4 are supported near the lower ends of the WS iron roller arm 5a and the DS iron roller arm 5b via the bearing box 7, respectively.

  The bearing box 7 has a ball bearing accommodated therein so that the iron roller 4 can be rotated, and is fitted in a guide groove formed in a concave shape on the WS iron roller arm 5a side and the DS iron roller arm 5b side. 1 is configured to be slidable in the direction of the arrow shown in FIG. 1 along the guide groove by the action of the contact pressure relaxing means 10 interposed between the bearing box 7 and the WS and DS iron roller arms. ing.

  Then, when the iron roller 4 moves forward by the action of the iron roller pressing pressure applying means 8 and applies pressing pressure to the thin sheet 3 to be rolled around the coil 3a, the contact pressure relaxation means 10 applies the pressing pressure. It absorbs and relaxes the fluctuation of the contact pressure between the iron roller 4 and the rolled thin sheet 3 being wound due to the delicate unevenness of the surface of the coil 3a which is compressed and wound by the reaction force.

  As the contact pressure relaxation means 10, a fluid cylinder using a fluid such as air or oil, a buffer spring, or the like can be used. The iron roller support member 5 includes a WS iron roller arm 5a and a DS iron roller arm 5b which are connected by an upper stay 12a and a lower stay 12b in order to increase the overall rigidity including the iron roller 4 and prevent torsional deformation. It is connected.

  The iron roller pressing pressure applying means 8 includes a WS air cylinder 8a and a DS air cylinder 8b attached to the WS iron roller arm 5a and the DS iron roller arm 5b via support pins 9, respectively. The pressing pressure is applied to the rolled sheet 3 wound around the spool 2 mounted on the winding shaft 1 via the iron roller 4. The WS air cylinder and the DS air cylinder are configured such that the pressing pressure can be varied by the output of an electropneumatic regulator (not shown).

  Further, the diameter of the coil 3a of the rolled sheet 3 wound around the spool 2 is automatically calculated by calculation means housed in the controller, and the weight vector of the iron roller 4 at a certain coil diameter during rolling is calculated. It is configured to be corrected by iron roller self-weight correcting means (to be described later) housed in the controller. Then, the pressing force by the iron roller 4 to the rolled sheet 3 at a certain coil diameter during rolling is calculated by the calculation means, and the pressing pressure of the electropneumatic regulator is controlled by the iron roller pressing pressure control means housed in the controller. Is set.

As the iron roller pressing pressure control means for controlling the pressing pressure of such an electropneumatic regulator, the pressing force of the WS air cylinder 8a and the DS air cylinder 8b is set to a predetermined value in accordance with the increase in the diameter of the coil 3a during rolling. In order to maintain (within a predetermined allowable range), the following two methods are conceivable.
(1) A control method for increasing the pressing pressure of the iron roller 4 proportionally or stepwise.
(2) A control method for setting the pressing pressure of the iron roller 4 according to a predetermined program.

The control method of the above item (1) is as described above, but in order to facilitate understanding of the control method of the item (2), it will be described below with reference to the flowchart of FIG. First, before starting rolling, the following three values are input (step 21).
A. Predetermined WS air cylinder pressing force [= WSc]
B. Predetermined DS air cylinder pressing force [= DSc]
C. Spool outer diameter (or coil diameter at the start of rolling)

Then, when rolling is started (or winding is started) (step 22), the iron roller self-weight vector is corrected by the iron roller self-weight correcting means corresponding to the coil diameter R (x) separately calculated during rolling. Two data are calculated (step 23).
A. WS air cylinder pressing force during rolling [= WS (x)]
B. DS air cylinder pressing force during rolling [= DS (x)]

Next, it is determined whether the calculated WS (x) and DS (x) satisfy the following expressions (1) and (2), respectively (step 24).
| WS (x) -WSc |> α (1)
| DS (x) −DSc |> β (2)
Here, α and β are upper limit values set in advance (upper limit value of the allowable range).

  When WS (x) and DS (x) satisfy the above equations (1) and (2), respectively, the pressing pressure of the electropneumatic regulator becomes WS (x) and DS (x). The setting is changed (step 25), and a predetermined pressing force is generated in the WS air cylinder 8a and the DS air cylinder 8b. On the other hand, if the WS (x) and DS (x) do not satisfy the above equations (1) and (2), the process returns to step 23 again. In this way, steps 22 to 25 are repeated thereafter, and the pressing pressure of the iron roller 4 against the thin sheet 3 to be rolled is maintained at a predetermined pressure.

  And when winding of a to-be-rolled thin plate is complete | finished, the control described above is also complete | finished. As a controller containing such an iron roller pressing pressure control means, any other configuration can be used as long as it controls the pressing pressure of the iron roller 4 in order to maintain the pressing force at a predetermined value (within a predetermined allowable range). Can also be adopted.

  As described above, according to the method for preventing wrinkling at the time of winding the rolled thin sheet according to the present invention, the pressure applied to the rolled thin plate by the ironing roller is maintained at a predetermined pressure so that the pressure is reduced. Since the pressing pressure of the iron roller on the coiled thin sheet to be rolled is controlled to a predetermined pressure in accordance with the change in the coil diameter of the rolled thin sheet, the coil is covered from the start to the end of winding of the coil. A constant pressing pressure is applied to the rolled thin sheet, and it is wound up without causing quality defects such as winding wrinkles and breakage, thereby contributing to an improvement in product yield.

  Further, according to the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to the present invention, the iron roller is supported by the iron roller support member so as to be able to advance and retreat, and the pressing pressure maintaining means is supported by the iron roller. An iron roller pressing pressure applying means for applying a pressing pressure to the coiled thin sheet of the iron roller via a member; and a controller for controlling the pressing pressure to the rolled thin sheet to a predetermined pressure; Therefore, the pressing pressure of the iron roller against the thin sheet to be rolled is controlled, and the pressing pressure against the thin sheet to be rolled is reliably maintained at a predetermined pressure.

  Next, a wrinkle generation preventing method and apparatus during winding of a rolled thin sheet according to Embodiment 2 of the present invention will be described below without using the drawings. However, the difference between the second embodiment of the present invention and the first embodiment is that there is a difference in the winding method of the thin sheet to be rolled, and the other configuration is exactly the same as the first embodiment. The differences will be described.

  That is, the method and apparatus for preventing wrinkling during winding of the rolled thin sheet according to the first embodiment is a lower winding method in which the rolled thin sheet is wound from below the spool mounted on the winding shaft. On the other hand, the wrinkle generation preventing method and apparatus at the time of winding the rolled thin sheet according to the second embodiment is configured by an upper winding method in which the rolled thin sheet is wound from above the spool.

  Such an upper winding method is employed in a part for copper foil and a method and apparatus for winding aluminum foil, and often includes an ironing roller as described in the first embodiment for preventing wrinkling. . Also in the method and apparatus for preventing wrinkle generation during winding by the upper winding method provided with such an iron roller, as described in the method and apparatus for preventing wrinkle generation during winding of the rolled thin sheet according to the first embodiment. In addition, according to a change in the coil diameter of the thin sheet to be rolled at the time of winding, the pressing force of the iron roller is adjusted so that the pressing pressure of the iron roller against the thin sheet to be rolled is maintained at a predetermined pressure. A pressing pressure maintaining means for maintaining the pressing pressure on the coiled sheet to be rolled at a predetermined pressure is provided, and the pressing pressure maintaining means includes a controller for controlling the pressing pressure on the sheet to be rolled to a predetermined pressure. It is possible to use an apparatus for preventing wrinkling during winding of a thin sheet to be rolled, the controller comprising iron roller self-weight correcting means for correcting the self-weight of the iron roller according to a change in coil diameter. .

  And in such a winding device, by the method for preventing wrinkling at the time of winding the rolled sheet, the pressing pressure of the ironing roller on the coiled sheet is maintained at a predetermined pressure. The pressing pressure can be maintained more uniformly than the conventional example over the entire take, and the generation of wrinkles can be prevented.

As described above, according to the method for preventing wrinkling at the time of winding the rolled sheet according to the present invention, the pressing pressure of the iron roller against the rolled sheet is maintained at a predetermined pressure. The pressing pressure of the iron roller on the rolled sheet wound in the coil shape is maintained at a predetermined pressure while correcting the own weight of the iron roller according to the change in the coil diameter of the rolled sheet. Therefore, the influence of the iron roller's own weight on the pressing pressure accompanying the increase in the coil diameter is eliminated, and a constant pressing pressure is applied to the rolled thin sheet from the start to the end of winding of the coil. Winding without causing quality defects such as breakage and breakage, contributing to improvement in product yield.

Further, according to the apparatus for preventing wrinkling at the time of winding the rolled thin sheet according to the present invention, the pressing pressure on the rolled thin sheet wound in the coil shape of the iron roller at the time of winding the rolled thin sheet becomes a predetermined pressure. The pressing pressure that maintains the pressing pressure of the iron roller on the rolled sheet wound in the coil shape at a predetermined pressure according to the change in the coil diameter of the rolled sheet at the time of winding so as to be maintained. The pressing pressure maintaining means includes a controller for controlling the pressing pressure on the rolled sheet rolled up in the coil shape to a predetermined pressure, and the controller has a coil diameter. Since the iron roller self-weight correcting means for correcting the self-weight of the iron roller according to the change of the coil roller is eliminated, the influence of the iron roller self-weight on the pressing pressure accompanying the increase in the coil diameter is eliminated, and winding wrinkles, breakage, etc. It can cause quality defects Without may provide a low cost winding device with a simple structure which contributes to the improvement of product yield.

It is a principal part side view which shows the principal part of the wrinkle generation | occurrence | production prevention apparatus at the time of winding of the to-be-rolled thin plate which concerns on Embodiment 1 of this invention. It is the arrow line view which showed the arrow XX of FIG. 1 in the partial cross section. It is a flowchart which shows the setting procedure of the pressing pressure setting means of an electropneumatic regulator concerning Embodiment 1 of this invention. It is principal part explanatory drawing of the winding apparatus of the metal foil strip which concerns on one Example of a prior art example.

P1: Winding point of rolled thin plate on spool P2: Winding point of rolled thin plate on coil 1: Winding shaft, 2: Spool 3: Rolled thin plate, 3a: Coil 4: Iron roller 5: Iron roller Support member 5a: Work side (WS) iron roller arm 5b: Drive side (DS) iron roller arm 6: Support shaft, 7: Bearing box 8: Iron roller pressing pressure applying means 8a: Work side (WS) air cylinder, 8b : Driving side (DS) air cylinder 9: Support pin, 10: Contact pressure relaxation means, 11: Bearing 12a: Upper stay, 12b: Lower stay 13: Roller arm mount 21-25: Step of iron roller pressing pressure control means

Claims (5)

When winding a rolled thin sheet into a coil shape by a winding shaft, the rolled thin sheet is wound without causing wrinkles while applying pressing pressure to the outer surface of the rolled thin sheet wound in a coil shape with an iron roller. In the method for preventing wrinkle generation during winding of the rolled thin sheet, according to a change in the coil diameter of the rolled thin sheet during winding so that the pressing pressure of the iron roller against the rolled thin sheet is maintained at a predetermined pressure. The winding of the rolled thin sheet is controlled so as to maintain the pressing pressure of the iron roller on the rolled thin sheet wound in the coil shape while maintaining the predetermined weight while correcting the weight of the iron roller. How to prevent wrinkling when taking. A winding shaft for winding the rolled thin sheet into a coil shape and an ironing roller in contact with the outer surface of the rolled thin sheet wound in the coil shape, and winding the rolled thin sheet without generating wrinkles A device for preventing wrinkling during winding of a thin sheet to be rolled so that a pressing pressure against the thin sheet wound into a coil shape of the iron roller is maintained at a predetermined pressure when winding the thin sheet. And a pressing pressure maintaining means for maintaining a pressing pressure of the iron roller on the rolled sheet wound in the coil shape at a predetermined pressure in accordance with a change in the coil diameter of the rolled sheet at the time of winding. The pressing pressure maintaining means includes a controller for controlling the pressing pressure on the rolled sheet wound in the coil shape to a predetermined pressure, and the controller responds to a change in the coil diameter. To correct the weight of the ironing roller Wrinkle preventer of winding Totoki of the rolled sheet, characterized in that it comprises an ironing roller the own weight correction means.   The ironing roller is supported by an ironing roller support member so as to be able to advance and retreat, and the pressing pressure maintaining means further applies a pressing pressure to the coiled thin sheet of the ironing roller via the ironing roller support member. The apparatus for preventing wrinkling at the time of winding a thin sheet to be rolled according to claim 2, comprising iron roller pressing pressure applying means for applying.   The said ironing roller support member is equipped with the contact pressure relaxation means which relieves the contact pressure of the said ironing roller and the to-be-rolled thin sheet in winding, The winding of the to-be-rolled thin sheet of Claim 2 or 3 characterized by the above-mentioned. Wrinkle prevention device when taking.   The winding method for the winding shaft is a lower winding method for winding a rolled thin sheet from below the winding shaft or a spool mounted on the winding shaft. The apparatus for preventing wrinkle generation when winding a rolled thin sheet according to any one of the above items.

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