JPH05315502A - Method and device for plating slender rod of irregular shape - Google Patents

Abstract

PURPOSE:To effectively prevent the bending, deformation, meandering, distortion and the like generatiang in a slender rod of irregular shapes when a plating operation is conducted. CONSTITUTION:A feeding system B, the feeding table 7a of a winding system C, and a winding table 7b are brought into a movable state against a fixed platiang system A. On the feeding system B, a feeding-side base stand 13a is moved based on the data detected by a feeding-side sensor 10a and the feeding angle of a shender rod 6 of an irregular shape against a guide roll 1 is brought into a constant state irrespective of feeding amount. On the winding system C, based on the data detected by a winding-side sensor 10b, a winding-side base stand 13b is moved, and the winding angle of the shender rod 6 is made constant irrespective of the amount of winding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for plating a profile strip for use in a semiconductor lead frame,
In particular, the present invention relates to those suitable for pre-plating of irregularly shaped strips used for power applications and intelligent IC applications.

[0002]

2. Description of the Related Art Intelligent ICs for power applications
The strip used for the purpose is not the general flat strip 21 used as a semiconductor lead frame as shown in FIG. 4 (A), but a thin wall as shown in FIG. 4 (B), (C), (D). The deformed strips 22 and 23 each having a portion and a thick portion. This variant strip 2
Reference numerals 2 and 23 are, for example, lead frames for high-power transistors having a unique cross-sectional shape in which a heat sink portion excellent in heat dissipation by precision stamping processing and a connector portion are integrated. Generally, a plating process is performed before the precision stamping process, which is called a pre-plating process.

FIG. 5 shows a conventional example of a plating apparatus used for the pre-plating process. In the case of the deformed strips 22 and 23 as shown in FIGS. 4 (B) to 4 (D), the material is usually molded in such a shape that the convex surface is on the outside due to problems such as shape maintenance and strain addition, and the shape is not changed. It is wound up and supplied as a material for pre-plating to the plating equipment in the form of a coil.

The irregularly shaped strip 22 is wound around the feeding frame 5a in a coil shape, and is fed from the feeding table 7a provided with a brake so that the winding does not collapse naturally, and the guide roller 1
And is continuously supplied to the plating treatment tank 2 of the plating apparatus 4. The irregularly shaped strip 22 plated in the plating tank 2 is taken up by the pinch roller 3 and wound as a finished product plating strip 24 on the winding frame 5b of the winding table 7b. As the finished product plating strip 24, for example, a strip as shown in FIG. 6 is generally used. Nickel plating 25 is applied to the entire surface of the deformed element strip 22, and silver plating stripes 26 are formed in parallel on two strips of the nickel plating 25. It was done. After that, it is subjected to precision stamping processing to be processed into a lead frame shape.

At the time of the above plating, the profiled strip 22 before the plating treatment is fed to the plating treatment device 4 with the guide roll 1 as the inlet, and the coil diameter becomes smaller as it is fed out as shown in FIG. In this case, if the relative position between the guide roll 1 and the feeding frame 5a is fixed, the feeding position with respect to the guide roll 1 shifts in the direction of the feeding frame 5a. As a result, at the feeding position S (the position indicated by the solid line) at the start of feeding and the feeding position E (the position indicated by the alternate long and short dash line) near the end of feeding, the initial coil radius (300 to 400 mm) is about the guide roll 1. There is a difference.

On the other hand, after the plating treatment, ideally, it should be wound into a coil with the same winding habit as when the profile strip was fed, but in reality, it cannot be wound in that way. As shown in FIG. 8, the finished product plating strip 24 is taken up by the pinch rolls 3, and the winding frame 5 on the winding table 7b is taken up.
Although wound around b, the winding position T at the start of winding
At the winding position F (the position indicated by the alternate long and short dash line) between the winding position (the position indicated by the solid line) and the winding position F (the position indicated by the alternate long and short dash line) at the end of winding, the winding position shifts from the pinch roll by 300 to 400 mm. Because.

[0007]

In the modified strip, the state of the finished product after the completion of rolling is the best state, and is greatly affected by the subsequent rewinding and winding methods. Therefore, according to the above-mentioned conventional technique, the following problems occur.

(1) While being fed, it is fed with tension, but since the positions of the intervening guide rolls and the feeding table are fixed, the feeding angle of the profiled strip with respect to the guide roll at the start of feeding and near the end of feeding is significantly large. Misalignment occurs, which causes the guide roll to be bent and distorted due to local tension abnormality.

(2) If the deformed strip is bent due to (1), it will not be straight even in the plating tank, and it is likely to be affected by liquid jets, voltage changes, etc. during plating, resulting in unstable quality characteristics. Becomes

(3) Even at the time of winding, a large deviation of the winding angle with respect to the pinch roll occurs between the start of winding and the end of winding, whereby the winding changes while the direction changes via the pinch roll. Therefore, the deformed strip is more bent than the feeding portion, and the deformed strip is more susceptible to meandering and distortion.

(4) In the precision stamping process in the post-process, a leveler is used to correct the above-mentioned bending and the like, but in the case of a deformed strip, the plate thickness is thick, so that the use effect cannot be expected so much. For this reason, investment as a large leveler is required, but it is difficult to apply leveler processing to a thin portion where distortion is particularly likely to occur because of the step, and troubles as a product are inevitable.

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to maintain the characteristics of the deformed strip as much as possible without causing extra shape burden such as bending, meandering and deformation of the deformed strip and increase in distortion. It is an object of the present invention to provide a method and an apparatus for plating a profiled strip that can perform a plating process in the above-described state.

[0013]

According to the method for plating a profiled strip of the present invention, a profiled strip wound in a coil shape is fed out, guided by a guide roll to a plating treatment tank, and after the plating treatment, picked up by a pinch roll to form a coiled shape. In the method of plating a strip with continuous winding while winding, the feed angle of the strip with respect to the guide roll that changes according to the coil diameter that decreases according to the delivery amount, and the coil diameter that increases according to the winding amount. The winding angle from the pinch roll, which changes in accordance with the above, is maintained at a constant value, and plating is performed continuously.

The profiled strip plating apparatus of the present invention is a rotatably mounted on the pedestal-side base, and delivers a profiled strip wound by a coil on a feed-out frame by rotation, and a feed-out table. A delivery side track that movably supports the delivery side base in a direction intersecting the delivery direction so that the delivery angle of the profiled strip can be changed, and a delivery side base is run along the delivery side track to form a profiled strip. The feeding side drive mechanism for changing the feeding angle, the plating tank for plating the profiled strip fed from the feed table, the guide roll for guiding the profiled strip fed from the feed table to the plating treatment tank, and the plating The pinch roll that draws the profiled strip that has been plated in the treatment tank from the plating treatment tank and the difference from the feeding table that is provided in front of the guide roll The feeding-side sensor that detects the feeding angle or position of the strip, and the coil diameter of the deformed strip that is driven by the feeding-side drive mechanism based on the detection result of the feeding-side sensor to decrease according to the feeding amount from the feeding table. The feeding-side control means for keeping the feeding angle of the profiled strip with respect to the guide roll, which varies in accordance with the above, and the profiled strip rotatably provided on the winding-side base and taken up by the pinch roll. A winding table and a winding side track for movably supporting the winding side base in a direction intersecting the winding direction so that the winding angle from the pinch roll to the winding table can be changed. , A winding-side drive mechanism that changes the winding angle of the deformed strip by running the winding-side base along the winding-side track, and a deformed shape from the pinch roll to the winding table provided behind the pinch roll. Of the winding-side sensor for detecting the winding angle or position of the winding-up side and the winding-side drive mechanism based on the detection result of the winding-side sensor to increase the winding-up amount on the winding table. And a winding-side control means for maintaining a constant winding angle of the profiled strip from the pinch roll, which varies depending on the coil diameter of the profiled strip.

The profiled strip plating apparatus of the present invention is a rotatably mounted on the pedestal-side base, and a delivery table for delivering the profiled strip wound in the form of a coil around the delivery frame by rotation, and the delivery table. A delivery side track that movably supports the delivery side base in a direction intersecting the delivery direction so that the delivery angle of the profiled strip can be changed, and a delivery side base is run along the delivery side track to form a profiled strip. The feeding side drive mechanism for changing the feeding angle, the plating tank for plating the profiled strip fed from the feed table, the guide roll for guiding the profiled strip fed from the feed table to the plating treatment tank, and the plating The pinch roll that draws the profiled strip that has been plated in the treatment tank from the plating treatment tank and the difference from the feeding table that is provided in front of the guide roll The feeding-side sensor that detects the feeding angle or position of the strip, and the coil diameter of the deformed strip that is driven by the feeding-side drive mechanism based on the detection result of the feeding-side sensor to decrease according to the feeding amount from the feeding table. The feeding side control means for keeping the feeding angle of the profiled strip with respect to the guide roll that changes in accordance with the above, and a winding table for winding up the profiled strip drawn by the pinch roll on the winding frame. is there.

Further, in the profiled strip plating apparatus of the present invention, a plating table for feeding a profiled strip wound in a coil around a feed-out frame by rotation, and a plating treatment for plating the profiled strips fed out from the feed-out table. A bath, a guide roll for guiding the profiled strip fed from the feeding table to the plating treatment bath, a pinch roll for drawing the profiled strip plated in the plating treatment bath from the plating treatment tank, and a winding-side base And a winding table for rotatably mounted on the winding frame for winding the profile strip drawn by the pinch roll on the winding frame, and the winding side base so that the winding angle from the pinch roll with respect to the winding table can be changed. The winding-side track that supports the coil in a direction that intersects with the winding direction, and the winding-side drive that changes the winding angle of the profile strip by running the winding-side base along the winding-side track. And a take-up side sensor provided behind the pinch roll for detecting the take-up angle or position of the profiled strip from the pinch roll with respect to the take-up table, and the take-up side drive based on the detection result of the take-up side sensor. Winding side control for driving the mechanism to keep the winding angle of the profiled strip from the pinch roll constant, which changes according to the coil diameter of the profiled strip that increases according to the winding amount on the winding table. And means.

[0017]

[Operation] At the time of feeding, the feeding side base is supported on the feeding track so that the feeding table can be moved, and the feeding angle of the profiled strip with respect to the guide roll before the guide roll that is the entrance of the plating tank is fed out. When the feeding side drive mechanism moves the feeding table according to the feeding amount of the profiled strip based on the detection result by the sensor, the feed-out angle of the profiled strip with respect to the guide roll, which changes according to the coil diameter, is always constant. ..
Therefore, regardless of the coil diameter that decreases according to the amount of feeding from the start of feeding to near the end of feeding, distortion due to the guide roll is not received. In addition, since there is no distortion in the irregularly shaped strip,
The profiled strip is maintained in a straight line even in the plating tank, and the quality characteristics are stable without being affected by liquid jets, voltage changes, etc. during plating.

Further, at the time of winding, the winding-side base is supported on the winding-side track so that the winding-side table can be moved so that the pinch-roll behind the pinch-roll serving as the outlet of the plating tank is against the pinch-roll. When the winding angle of the deformed strip is detected by the winding side sensor and the winding side drive mechanism moves the winding table according to the winding amount of the deformed strip based on the detection result, it changes according to the coil diameter. The winding angle of the profiled strip with respect to the pinch roll is always constant. Therefore, regardless of the coil diameter that increases according to the winding amount from the start of winding to the end of winding, distortion of the plated strip due to the pinch roll is suppressed as much as possible.
Therefore, a predetermined plating process can be performed while maintaining the characteristics that the material had at the time, and no adverse effect is exerted during the subsequent precision stamping process.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention applied to a deformed strip provided for a power-use lead frame will be described below with reference to the drawings. FIG. 2 shows a deformed element strip 6 wound in a coil shape used in this embodiment, and the convex portion is generally wound outward as viewed from the central axis of the wound coil. .. Figure 1
FIG. 2 is a plan view of a horizontal plating apparatus, that is, a type in which the central axis of the coil is arranged vertically and the deformed strip surface is made vertical.

The plating apparatus of this embodiment includes a plating system A which constitutes a fixed system, a feeding system B which is provided before and after the plating system and constitutes a movable system for the plating system, and a winding system C. ..

The plating system A includes a plating treatment tank 2 for plating the irregularly shaped strip 6 fed from the feeding table 7a, and a guide roll 1 for guiding the irregularly shaped strip 6 fed from the feeding table 7a to the plating treatment tank 2. And a feeding side sensor 10a provided in front of the guide roll 1 for detecting the feeding angle or position of the deformed element strip 6 with respect to the guide roll 1, and the pinch roll 3 for taking out the deformed element strip 6 after plating from the plating treatment tank 2. And a winding-side sensor 10b that is provided behind the pinch roll 3 and that detects the winding angle or position of the deformed element strip 6 that is wound from the pinch roll 3 onto the winding frame 5b on the winding table 7b. Prepare as a system.

The feeding system B includes a feeding table 7a which is rotatably provided on the feeding side base 13a and feeds the deformed element strips 6 wound around the feeding frame 5a by rotation. The entire table 7a is integrated on the feeding side base 13a. Further, a feeding-side slide rail that slidably supports the feeding-side base 13a in a horizontal direction (direction of an arrow in the drawing) that intersects with the rotation axis of the feeding table 7a and the feeding direction of the deformed strip 6 fed from the feeding table 7a. 8a. Further, the feeding side screw rod 9a for sliding the feeding side base 13a along the feeding side slide rail 8a, the feeding side driving means 11a for driving the feeding side screw rod 9a, and the detection result of the feeding side sensor 10a are shown. Based on this, the feeding angle α of the deformed element strip 6 with respect to the guide roll 1 changes according to the coil diameter of the deformed element strip 6 that decreases according to the amount of delivery from the delivery table 7a.
And a feeding-side control means 12a for driving the feeding-side driving means 11a so as to maintain the constant value. The feeding side driving mechanism of the present invention is composed of the feeding side screw rod 9a and the feeding side driving means 11a.

The winding system C includes a winding table 7b that is rotatably provided on the winding-side base 13b and that winds the deformed element strip 6 sent out from the pinch roll 3 onto the winding frame 5b. The entire winding table 7b wound with 6 is integrated on the winding side base 13b. Further, a winding-side slide rail 8b on which the winding-side base 13b slides in a direction (arrow in the drawing) intersecting with the rotation axis of the winding table 7b and the winding direction of the deformed element strip 6, and the winding-side. Slide rail 8
and a winding-side screw rod 9b for sliding the winding-side base 13b along b. Further, the winding side driving means 11b for driving the winding side screw rod 9b.
Then, based on the detection result of the winding-side sensor 10b, the pinch roll 3 that changes according to the coil diameter of the deformed element strip 6 that increases according to the winding amount on the winding table 7b is wound onto the winding table 7b. The winding side control means 12b for driving the winding side drive means 11b so as to maintain the winding angle β of the deformed element strip 6 at a constant value. The winding side drive mechanism of the present invention is composed of the winding side screw rod 9b and the winding side driving means 11b.

Next, the operation of the above structure will be described. FIG. 1 shows the start of feeding or the start of winding. In the feeding system B, the feeding side sensor 10a detects the feeding angle α of the deformed element strip 6 with respect to the guide roll 1, which is about to change with the feeding from the feeding table 7a. The detection result is sent to the feeding side control means 12a, and the feeding side drive means 11a is driven by a signal based on the detection result. By this drive, the feeding side screw rod 9a
Is rotated by a predetermined amount and the feeding-side base 13a is slid on the feeding-side slide rail 8a so as to offset the change in the feeding angle, and the feeding angle α of the deformed element strip 6 with respect to the guide roll 1 is held. As a result, the position of the deformed strip 6 that enters the guide roll 1 is fixed, the deformed strip 6 is not bent or deformed by the guide roll 1, does not suffer from a local tension abnormality, and has no distortion from the outer end to the inner end of the coil. You can get out. Further, even in the plating treatment tank 2, since there is no periodic bending or meandering of the strip 6, the traveling position is stable, and high-quality plating work can be performed.

The deformed strip 6 passes through the plating tank 2 and is taken up by the pinch rolls 3 to be wound up to the winding diameter C, but the winding diameter C changes as the winding amount increases. The winding angle β of the deformed strip 6 from the guide roll 1
Is detected by the winding side sensor 10b. The detection result is sent to the winding side control means 12b, and the winding side drive means 11b is driven by a signal based on the detection result. By this drive, the winding-side screw rod 9b is rotated by a predetermined amount, and the winding-side base 13b is slid on the winding-side slide rail 8b so as to offset the change in the winding angle, so that the pinch roll 3 is moved. The winding angle β of the irregularly shaped strip 6 is maintained. As a result, the position of the deformed element strip 6 coming out of the pinch roll 3 is fixed, and the deformed element strip 6 is prevented from being bent or deformed by the pinch roll 3 or localized abnormal tension.
It is wound up without distortion until the end of winding.

Thus, not only before the plating treatment,
Even after plating, the position of the irregularly shaped element 6 that runs continuously can be kept constant, so it is possible to wind it into a coil with the same curl as when feeding the irregularly shaped element strip, which is ideal. It can be close to. as a result,
The profiled strip is not subject to meandering, distortion, etc., and there is no need to use a leveler for the purpose of straightening straightening before the precision stamping process in the subsequent process, and the reliability as a product is enhanced. The finished product plated strip thus obtained is subjected to precision stamping to form a power application lead frame as shown in FIG. A semiconductor chip is loaded on this, and a lead frame of a power transistor, an IC or the like used for the purpose of power supply or switching is formed.

Although the horizontal plating apparatus has been described in the above-mentioned embodiments, the present invention is a vertical plating apparatus, that is, a type in which the central axis of the coil is arranged vertically and the deformed strip surface is supplied horizontally. Is also applicable, in which case
Allow the winding unit to slide vertically instead of horizontally. Further, the sliding method and the positioning method are not limited to those shown in the drawings, and generally known mechanical methods can be applied. Further, in the above embodiment, the most preferable case in which both the feeding system and the winding system are movable is explained, but the present invention is
This may be the feeding system only or the winding system only. In principle, the plating system may be moved, but it is not practical.

[0028]

(1) According to the method of claim 1,
It is possible to perform plating processing while maintaining the characteristics of the profiled strip as much as possible without causing extra shape burden such as bending, deformation, meandering, and deformation on the entire profiled strip and increasing strain. In particular, since distortion and deformation of the thin portion are suppressed as much as possible, the product lead frame characteristics after stamping are stabilized.

(2) According to the apparatus of claim 2, since the feeding angle of the profiled strip from the feeding position to the guide roll is always kept constant, the guide roll bends, deforms,
It is possible to suppress meandering, distortion, etc. as much as possible, and there is no periodic bending or meandering of the strip even in the plating tank, which enables stable and high-quality plating work. Also, since the winding angle of the deformed strip from the take-up pinch roll is always kept constant, it is possible to suppress deformation, bending, meandering, distortion, etc. during winding by the pinch roll as much as possible.
Stable properties can be obtained as a finished product.

(3) According to the apparatus of claim 3, since the feeding angle of the profiled strip from the feeding position to the guide roll is always kept constant, bending, deformation, meandering by the guide roll,
It is possible to suppress distortion and the like as much as possible, and it is possible to perform stable and high-quality plating work even in the plating treatment tank because there is no periodic bending or meandering of the strip.

(4) According to the apparatus of claim 4, since the winding angle of the deformed strip from the take-up pinch roll is always kept constant, deformation and bending at the time of winding by the pinch roll,
It is possible to suppress meandering and distortion as much as possible.

[Brief description of drawings]

FIG. 1 is a plan view showing the entire profiled strip pre-plating apparatus according to an embodiment of the present invention.

FIG. 2 is an external view of a deformed strip coil used in this embodiment.

FIG. 3 is a plan view of a finished product of the power application lead frame according to the present embodiment.

FIG. 4 is an external view of a coil and a cross-sectional view of a deformed element strip showing an example of a deformed element strip used for a general semiconductor lead frame type strip and a power application lead frame.

FIG. 5 is a plan view showing an entire pre-plating apparatus according to a conventional example.

FIG. 6 is an external view of a pre-plated finished product (stripe-plated product).

FIG. 7 is an explanatory view showing a problem on the feeding side according to a conventional example.

FIG. 8 is an explanatory view showing a problem on the winding side according to a conventional example.

[Explanation of symbols]

 A plating system B feed system C winding system 1 guide roll 2 plating tank 3 pinch roll 5a feeding frame 5b winding frame 6 variant element strip 7a feeding table 7b winding table 8a feeding side slide rail 8b winding side slide rail 9a Feeding side screw rod 9b Winding side screw rod 10a Feeding side sensor 10b Winding side sensor 11a Feeding side driving means 11b Winding side driving means 12a Feeding side control means 12b Winding side control means

Claims (4)

[Claims] 1. A method of plating a profiled strip in which a profiled strip wound in a coil shape is fed out, guided to a plating treatment tank by a guide roll, picked up by a pinch roll after the plating treatment, and continuously wound into a coil shape for plating. In, the feeding angle of the deformed strip with respect to the guide roll that changes according to the coil diameter that decreases according to the feeding amount, and the winding angle from the pinch roll that changes according to the coil diameter that increases according to the winding amount. A profiled strip plating method characterized by continuously plating while maintaining a constant value. 2. A feeding table which is rotatably provided on a feeding side base and which feeds out a profiled strip wound in a coil shape on a feed-out frame by rotation, and a feed-out angle of the profiled profile which is fed out from this feed-out table. As described above, a feeding-side track that movably supports the feeding-side base in a direction intersecting the feeding direction, and a feeding-side drive that changes the feeding angle of the profile strip by running the feeding-side base along the feeding-side trajectory A mechanism, a plating treatment tank for plating the profiled strip fed from the feeding table, a guide roll for guiding the profiled strip fed from the feeding table to the plating treatment tank, and plating in the plating treatment tank Detects the feeding angle or position of the profiled strip from the pinch roll that draws the profiled strip from the plating tank and the feed table that is provided in front of the guide roll. A feed-out sensor, and drives the feed-out driving mechanism based on a detection result of the feed-out sensor,
Feeding-side control means for holding the feeding angle of the profiled strip relative to the guide roll, which varies according to the coil diameter of the profiled strip, which decreases according to the amount of delivery from the delivery table, and rotation on the winding-side base. A winding table for freely winding a deformed strip drawn by the pinch roll on a winding frame, and the winding side base so that the winding angle from the pinch roll with respect to the winding table can be changed. A winding-side track that supports the winding-side track so as to run freely in a direction that intersects the winding direction, and a winding-side drive mechanism that changes the winding angle of the profile strip by running the winding-side base along the winding-side track. A winding-side sensor that is provided behind the pinch roll and detects the winding angle or position of the profile strip from the pinch roll with respect to the winding table, and the winding-side drive mechanism based on the detection result of the winding-side sensor. Drive on And a winding-side control means for maintaining a constant winding angle of the profiled strip from the pinch roll, which changes according to the coil diameter of the profiled strip that increases according to the winding amount on the winding table. Characteristically shaped strip plating equipment. 3. A feeding table, which is rotatably provided on a feeding side base and is wound by a coil on a feeding frame to feed the shaped strip by rotation, and a feeding angle of the shaped strip fed from the feeding table can be changed. As described above, a feeding-side track that movably supports the feeding-side base in a direction intersecting the feeding direction, and a feeding-side drive that changes the feeding angle of the profile strip by running the feeding-side base along the feeding-side trajectory A mechanism, a plating treatment tank for plating the profiled strip fed from the feeding table, a guide roll for guiding the profiled strip fed from the feeding table to the plating treatment tank, and plating in the plating treatment tank Detects the feeding angle or position of the profiled strip from the pinch roll that draws the profiled strip from the plating tank and the feed table that is provided in front of the guide roll. A feed-out sensor, and drives the feed-out driving mechanism based on a detection result of the feed-out sensor,
Feeding-side control means for holding the feeding angle of the profiled strip relative to the guide roll, which varies according to the coil diameter of the profiled strip, which decreases in accordance with the amount of delivery from the delivery table, and the profile drawn by the pinch roll. A deformed strip plating apparatus comprising: a winding table for winding the strip onto a winding frame. 4. A feeding table for feeding a profile strip wound in a coil on a feed frame by rotation, a plating treatment tank for plating the profile strip fed from the feed table, and a feed table for this plating treatment bath. The guide roll that guides the profiled strip that is fed from the pinch roll that pulls the profiled strip plated in the plating treatment tank from the plating treatment tank, and the pinch roll that is rotatably provided on the winding side base. The winding table that winds the deformed strip that has been taken up on the winding frame and the winding-side base that travels in a direction that intersects the winding direction so that the winding angle from the pinch roll to this winding table can be changed A winding side track that supports freely,
A take-up side drive mechanism that changes the take-up angle of the profiled strip by running the take-up side base along the take-up side track, and a profiled strip from the pinch roll to the winding table provided behind the pinch roll. Of the winding-side sensor for detecting the winding angle or position of the winding-up side and the winding-side drive mechanism based on the detection result of the winding-side sensor to increase the winding-up amount on the winding table. A winding-side control means for maintaining a constant winding angle of the profiled strip from the pinch roll, which changes in accordance with the coil diameter of the profiled strip.