JPH06285542A - Method and device for coiling aluminum plated steel plate - Google Patents

Abstract

PURPOSE:To eliminate a clearance between a sleeve and a steel plate by starting a segment to a state of contraction from expansion, as soon as the tip part of the steel plate comes into contact with the succeeding steel plate, and starting expansion of the segment, while coiling force of the sleeve and the steel plate is weak. CONSTITUTION:In the outside periphery of a coiling shaft 15, plural segments 16 are arranged at a gap in the peripheral direction, and an aluminum plated steel plate 12 is coiled to a coiling reel provided with a sleeve 17 consisting of an elastic material for surrounding its segment 16. As soon as the tip part of the steel plate at the time of coiling the segment 16 to the coiling reel in a state of expansion comes into contact with the succeeding steel plate, or immediately before it is bitten, the segment 16 starts its contraction, and while coiling force of the sleeve 17 and the steel plate 12 is weak, the expansion of the segment is started and the steel plate coil is joined. In such a way, a clearance of the aluminum steel plate is eliminated and its coiling deviation is prevented, and the yield and the productivity are improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for winding an aluminum-based plated steel sheet obtained by plating a steel sheet with aluminum or an aluminum alloy on a take-up reel.

[0002]

2. Description of the Related Art Conventionally, a method of winding the front end of a steel plate is disclosed in Japanese Patent Laid-Open No. 4-89133. In this prior art, in order to reduce the top mark flaws generated in the coil inner diameter portion, the segment is wound in a contracted state from the tip of the steel plate a predetermined number of times, and then the segment is expanded and wound.
A prior art arrangement having such an arrangement is shown in FIG. The plurality of segments 1 are surrounded by a sleeve 2 made of an elastic material, the segments 1 are arranged in the circumferential direction of the winding shaft 4, and the aluminum-plated steel sheet 3 is wound on the sleeve 2. The aluminum-plated steel sheet 3 is hard to slip between the steel sheets, and particularly when a thick material of 2.0 mm or more is wound by the take-up reel, the tip 6 of the steel sheet does not smoothly wind around the sleeve 2 of the reel. As shown in the drawing, a gap 10 is formed between the sleeve 2 and the steel plate 3, and when the winding thickness becomes thick, a telescopic winding deviation as shown in FIG. 9 occurs. In such a state, it becomes difficult to pull out the coil 5 from the sleeve 2 of the reel, and in some cases, the high-speed continuous line may have to be stopped.

When the winding misalignment coil is generated, the coil becomes unstable when the coil having the winding misalignment is transported by a crane, which is very dangerous.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for winding an aluminum-based plated steel sheet capable of preventing the above-mentioned winding deviation and the resulting stoppage of a high-speed continuous line. Is to provide.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of segments are arranged circumferentially at intervals on the outer circumference of a winding shaft, and a winding made of an elastic material is provided to surround these segments. In the method of winding the aluminum-plated steel sheet on the reel, the segment starts to shrink at the same time as the tip of the steel sheet comes into contact with the subsequent steel sheet when winding the segment on the take-up reel in the expanded state, or immediately before biting into the sleeve. The method for winding an aluminum-plated steel sheet is characterized by starting the expansion of the segment and fastening the steel sheet coil while the winding force between the steel sheet and the steel sheet is weak.

Further, according to the present invention, a plurality of segments are arranged on the outer circumference of the winding shaft at intervals in the circumferential direction, and a winding reel provided with a sleeve made of an elastic material surrounding the segments, and the winding reel. Segment position setting means for setting a position in the radial direction, a motor for driving the take-up reel, a detecting means for detecting a traveling distance of the aluminum-plated steel sheet, and a predetermined value after the segment setting means starts to shrink the segment. In response to the output of the timer and the timer that measures the passage of time, the segment of the segment is wound at the same time as the tip of the steel plate when winding the segment on the take-up reel in contact with the subsequent steel plate or immediately before biting. The segment position setting means starts the contraction, and when the predetermined time measured by the timer elapses after the contraction is started, the segment A winding device of an aluminum-based plated steel sheet, which comprises a processing means for setting the maximum diameter position segment location to start expansion of the segments by the position setting means.

[0007]

According to the present invention, when the segment of the take-up reel is in an expanded state, the front end of the aluminum-plated steel sheet is wound on the sleeve, and when one roll hits the succeeding steel sheet, if the segment is In the expanded state, the steel plate is not smoothly wound around the sleeve, and the gap 10 is formed as in the prior art described with reference to FIG. 8 described above. In order to solve this problem, the present invention provides: At the same time as the tip of the steel plate comes into contact with the subsequent steel plate, or immediately before biting, the segment starts to contract, thereby leaving the gap 10 slightly, but the tip of the steel plate does not hit the subsequent steel plate and is smooth. It is wound on the sleeve of the take-up reel.

Further, according to the present invention, after the segment starts to be in the contracted state, the segment is started to be in the expanded state while the winding force between the sleeve and the steel plate is weak, so that the sleeve and the steel plate are separated from each other. The gap 10 between them is eliminated and the coil can be fastened to the sleeve. Therefore, according to the present invention, it is possible to prevent the phenomenon in which the winding deviation occurs due to the formation of the gap 10 shown in FIG.

According to the invention, the output of the detecting means for detecting the running distance of the steel sheet causes the tip of the steel sheet to wind or wind into the succeeding steel sheet at the same time when the front end portion of the steel sheet is wound into the take-up reel with the segment expanded. It is possible to predict the time point immediately before, whereby the segment position setting means starts the state of contraction of the segment, and a predetermined time continued by the timer after the contraction is started, for example, a time point when 5 seconds have elapsed. By starting the expanded state of the segment and setting the segment position to the maximum radial position, the coil can be fastened to the sleeve without a gap between the sleeve and the steel plate.

[0010]

FIG. 1 is a sectional view for explaining the operation of an embodiment of the present invention. Such operation is performed by winding the aluminum-plated steel sheet of the embodiment of the present invention shown in FIG. Device 1
It is realized by 1. The aluminum-plated steel sheet 12 is plated by being dipped in a molten metal which is aluminum or an aluminum alloy and passed through, or vacuum-adsorbed to be plated, passed through a bridle roll 13, and sheared.
After passing through a deroll 18 and a touch roll 19 which form a pair, the film is wound by a carousel type tension reel device 24. The tension reel device 24 includes two winding devices 25 and 26.
26 is attached to a rotating body 27 that can be angularly displaced about a horizontal axis. The preceding material 28 of the steel plate 12 is the winding device 25.
The succeeding member 29 is wound into a coil by the second winding device 26. Winding device 2
5, 26 have the same structure, of which the winding device 26
The specific configuration of is shown in FIG.

Referring to FIG. 3, in the winding device 26, four segments 16 are arranged on the outer circumference of the winding shaft 15 at circumferential intervals, and these segments 16 are surrounded by an elastic material. For example, a cylindrical sleeve 17 made of rubber or the like is provided and configured, and the steel plate 12 is coiled around the sleeve 17 as indicated by reference numeral 30. The winding shaft 15 is formed in a truncated cone shape with its outer diameter changing in the axial direction, and by displacing the winding shaft 15 in the axial direction 20 by the double-acting cylinder 31,
The circumferential position of the segment 16 is changed. A spline 21 is formed on the winding shaft 15, and a gear 22 is meshed with the spline 21. The gear 22 is rotationally driven by the motor 9 via a gear 23.

FIG. 4 is a sectional view taken along line IV-IV in FIG. In the state where the winding shaft 15 is displaced to the right in FIG. 3 by the cylinder 31, the segment 16 is located radially inward as shown in FIG. 4A, and the outer diameter of the sleeve 17 is small. . Winding shaft 1 by cylinder 31
5 is displaced to the left in FIG.
6 is displaced outward in the radial direction, and the outer diameter of the sleeve 17 is increased as shown in FIG. 4 (2). Sleeve 17
When the steel plate 12 is wound by the action of the steel plate 12 as shown in FIG. 4 (3), the tip portion 12a of the steel plate 12 is absorbed into the sleeve 17 and bites into it, whereby the second
The top mark flaw 32 on the tip portion 12a of the steel sheet 12b of the second layer is suppressed as much as possible. If the sleeve 17 were not provided, the unevenness between the segments 16 would be transferred to the steel plate 12, and segment marks would be formed, resulting in deterioration of the product quality. The sleeve 17 also serves to prevent such segment marks from occurring on the steel plate 12.

Referring again to FIG. 2, the bridle roll 1
3 rpm, and therefore the sleeve 17 of the winding device 26
The rotation speed of is detected by the rotation speed detecting means 33.
The rotation speed detected by this rotation speed detecting means 33 is
It corresponds to the traveling distance of the steel plate 12.

FIG. 5 is a block diagram showing the electrical construction of an embodiment of the present invention. The detection output of the rotation speed detecting means 33 is given to a processing circuit 34 realized by a microcomputer or the like. The processing circuit 34 includes a timer 35. The processing circuit 34 drives the double-acting cylinder 31 that constitutes the segment position setting means.

FIG. 6 is a flow chart for explaining the operation of the processing circuit 34 shown in FIG. Step n
From step 1 to step n2, when the steel plate 12 is switched from the winding device 25 of the tension reel device 24 to the winding device 26 and wound, the coil speed of the steel plate 12 is higher than that at which the coil was wound around the winding device 25. The speed is set to a predetermined low speed, and the segment 16 of the winding device 26 is set to the cylinder 31.
The winding shaft 15 is displaced to the left in FIG. 3 to be in an expanded state, and in this state, by the shear 14 before and after the welded portion of the preceding material 28 and the following material 29 wound by the winding device 25. Cutting is performed and so-called crop processing is performed. The steel plate 12 has a thickness of 2.0 mm or more, which easily causes winding deviation, and the winding speed thereof is, for example, 20 m / min. From the time when the tip of the succeeding member 29 by the shear 14 is cut by the shear 14, the succeeding member 29 is wound around the sleeve 17 of the winding device 26 and wound once, as shown in FIG. 1 (1). The traveling distance of the steel plate 12 up to the time when the front end portion 36 of the steel plate 12 comes into contact with the succeeding steel plate 12 or immediately before the time when the steel plate 12 is bitten, and thus the output of the detection means 33, is given to the processing circuit 34. When the winding inner diameter by the sleeve 17 of the winding device 26 is 508 mmφ, the feed length of the steel sheet 12 from the time when the steel sheet 12 is cut by the shear 14 to the state of FIG. 1 (1) is set to 8000 mm, and When the winding inner diameter is 610 mmφ, the feed length is set to 8300 mm. Such operation is shown in FIG.
In steps n3 to n5.

FIG. 7 is a diagram showing the time course of the expanded state and the contracted state of the segment of the take-up reel 26. As shown in FIG. 1 (1), the time t immediately before the tip portion 36 of the steel plate 12 comes into contact with the subsequent steel plate or immediately before biting.
When it is detected by the output of the rotation speed detection means 33 that the time becomes 1, the time t1 to t is reached by the action of the timer 35.
The time of 2 is measured, and after the time t1, the action of the cylinder 31 starts the segment 16 in a contracted state. When the timer 35 reaches the time t2 when a predetermined time of 5 seconds elapses from the time t1, the processing circuit 34 starts to expand the segment 16 by the cylinder 31 at the time t2. Thus, in FIG. 1 (1), the steel plate 1
The gap 3 formed by the front end portion 36 of 2 and the subsequent steel plate
7 shows that the segment 16 is contracted after time t1 and becomes the state shown in FIG.
Becomes smaller, as indicated by the reference numeral 38, so that the leading end portion 36 of the steel plate 12 is smoothly wound around the succeeding steel plate. If the predetermined time from time t1 to t2 is set too long, the winding force between the sleeve 17 and the steel plate 12 becomes too strong,
After the time t2, the segment 16 may not be able to be in the expanded state. Therefore, in order to prevent such an inconvenient phenomenon, the time t1 to
The time t2 is set to, for example, 5 seconds as described above.

After the time t2, the segment 16 is started in the expanded state so that the gap 38 in FIG.
Disappears. At time t3, the position of the segment 16 is set to the maximum radial position, and this state is shown in FIG. 1 (3). It is desirable to shorten the time from time t2 to t3 as much as possible, whereby the gap 38 can be eliminated and the coil can be securely fastened to the sleeve 17.

[0018]

As described above, according to the present invention, the aluminum-plated steel sheet is less likely to slip between the steel sheets when the front end of the steel sheet is wound around the sleeve and wound once to hit the succeeding steel sheet. Although a gap is apt to occur between the steel plate and the steel plate, in the present invention, the segment starts to expand and contract at the same time as the tip of the steel plate comes into contact with the subsequent steel plate or immediately before biting, thus winding the sleeve and the steel plate. By starting to expand the segment while the pulling force is weak, the gap between the sleeve and the steel plate is eliminated to prevent the telescopic winding deviation shown in FIG. It becomes possible to conclude.

Further, according to the present invention, the traveling distance of the steel sheet is detected by the detecting means, so that the tip of the steel sheet wound on the sleeve of the take-up reel in the expanded state of the segment comes into contact with the following steel sheet at the same time or bites. It is possible to detect the time immediately before inserting the segment, and at this point, the segment begins to change from the expansion position to the contraction position, and when the predetermined time measured by the timer elapses after the contraction state is started, the segment is expanded again. To return to the state of. Thus, with a relatively simple structure, it is possible to wind the aluminum-based plated steel sheet without causing winding deviation.

As described above, according to the present invention, it is possible to prevent winding deviation of the aluminum-based plated steel sheet, thereby preventing the operation stop of the high-speed continuous line caused by the winding deviation, and thus to improve the yield and the productivity. You will be able to improve.

Further, since the winding misalignment coil is not generated, safe operation can be performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view for explaining a winding operation of an embodiment of the present invention.

FIG. 2 is a diagram showing a simplified overall configuration of an embodiment of the present invention.

FIG. 3 is a sectional view showing a configuration of a segment position setting means 26.

4 is a simplified cross-sectional view taken along the section line IV-IV in FIG.

FIG. 5 is a block diagram showing an electrical configuration of an embodiment of the present invention.

6 is a flowchart for explaining the operation of the processing circuit 34 shown in FIG.

FIG. 7 is a diagram showing a lapse of time in an expanded state and a contracted state of the segment 16.

FIG. 8 is a cross-sectional view of the prior art.

9 is a cross-sectional view showing a state in which the winding deviation of the prior art shown in FIG. 8 has occurred.

[Explanation of symbols]

 11 Winding Device 12 Aluminum Plated Steel Plate 13 Bridle Roll 14 Shear 15 Winding Shaft 16 Segment 17 Sleeve 18 Deflor 19 Touch Roll 24 Carousel Tension Reel Device 25, 26 Winding Device 31 Cylinder 33 Revolution Detecting Means 34 Processing Circuit 35 Timer

Claims (2)

[Claims] 1. An aluminum-plated steel sheet is placed on a take-up reel having a plurality of segments arranged circumferentially at intervals on the outer circumference of a take-up shaft and provided with a sleeve made of an elastic material surrounding the segments. In the winding method, the segment begins to shrink at the same time as the tip of the steel plate when winding the segment on the take-up reel in the expanded state comes into contact with the subsequent steel plate or immediately before biting, and the winding force of the sleeve and the steel plate A winding method for an aluminum-based plated steel sheet, which comprises starting to expand the segment and fastening the steel sheet coil while it is weak. 2. A take-up reel having a plurality of segments arranged circumferentially at intervals on the outer circumference of a take-up shaft, and provided with a sleeve made of an elastic material surrounding the segments, and a take-up reel in the radial direction of the segments. A segment position setting means for setting the position, a motor for driving the take-up reel, a detecting means for detecting the traveling distance of the aluminum-plated steel sheet, and a predetermined time has passed since the segment setting means started the contraction of the segment. In response to the output of the timer and the detection means, when the segment of the segment is expanded, the contraction of the segment The segment position setting is started at the time when the predetermined time measured by the timer elapses after the contraction is started by the position setting means. Winding apparatus of an aluminum-based plated steel sheet, which comprises a processing means for setting the maximum diameter position segment location to start expansion of the segments by the step.