JP3001746B2 - Winding device for aluminum plated steel sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for winding an aluminum-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 tip of a steel plate is disclosed in Japanese Patent Application Laid-Open No. 4-89133. In this prior art, in order to reduce top mark flaws generated in the inner diameter portion of the coil, the segment is wound a predetermined number of times from the front end of the steel plate in a contracted state, and then the segment is wound in an expanded state.
A prior art configuration having such a configuration 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 a 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. Particularly, when the thickness is 2.0 mm or more, when the steel sheet is wound by the take-up reel, the front end portion 6 of the steel sheet does not smoothly wind around the sleeve 2 of the reel. As shown in FIG. 9, when a gap 10 is formed between the sleeve 2 and the steel plate 3 and the winding thickness increases, a telescope-shaped winding deviation as shown in FIG. 9 occurs. In such a state, it becomes difficult to extract the coil 5 from the sleeve 2 of the reel, and in some cases, the high-speed continuous line must be stopped.

[0003] When a coil having a winding error is generated, the coil becomes unstable when transporting the coil having the winding error with a crane, which is extremely dangerous.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for winding an aluminum-plated steel sheet which can prevent the occurrence of the above-mentioned slippage and the stoppage of the high-speed continuous line caused by the slippage. That is.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a winding mechanism comprising a plurality of segments arranged on the outer periphery of a winding shaft at circumferential intervals, and a sleeve made of an elastic material surrounding these segments. Reel, segment position setting means for setting the radial position of the segment, motor for driving the take-up reel, detection means for detecting the travel distance of the aluminum-based plated steel sheet, and start of segment shrinking by the segment setting means A timer that measures that a predetermined time has elapsed since then, and responds to the output of the detection means, and simultaneously or bites in when the steel sheet tip comes into contact with the subsequent steel sheet when the segment is wound on the take-up reel in the expanded state. Immediately before, when the segment contraction is started by the segment position setting means and the predetermined time measured by the timer has elapsed since the start of the contraction, A take-up 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 a segment position setting means.

[0006]

[0007]

According to the present invention, if the leading end of an aluminum-based plated steel sheet is wound around a sleeve in a state where the winding reel segment is expanded, and if the winding roll hits the succeeding steel sheet, if the segment is temporarily cut, In the expanded state, the steel sheet does not smoothly wind around the sleeve, and a gap 10 is formed as in the prior art described with reference to FIG. 8 described above. In order to solve this problem, in the present invention, Simultaneously with or just before the leading edge of the steel sheet comes into contact with the succeeding steel sheet, the segment starts to be in a contracted state, so that the gap 10 slightly remains, but the leading edge of the steel sheet does not bump into the succeeding steel sheet and smoothly. Is wound on the take-up reel sleeve.

Further, according to the present invention, after the segment starts to be in a contracted state, while the winding force between the sleeve and the steel sheet is weak, the segment is started to be in an expanded state. 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 gap has occurred due to the generation of the gap 10 in FIG. 8 described in relation to the above-described prior art.

Further, according to the present invention, the output of the detecting means for detecting the traveling distance of the steel sheet causes the leading end of the steel sheet to be wound on the take-up reel in a state where the segment is expanded, and simultaneously or bites when it comes into contact with the succeeding steel sheet. It is possible to predict a point in time immediately before the start of the contraction of the segment by the segment position setting means, and a predetermined time continued by the timer from the start of the contraction, for example, a point in time when 5 seconds have elapsed. By setting the segment position to the maximum diameter position by starting the expanding state of the segment, it is possible to eliminate the gap between the sleeve and the steel plate and fasten the coil to the sleeve.

[0010]

FIG. 1 is a sectional view for explaining the operation of one embodiment of the present invention. Such an operation is shown in FIG. Apparatus 1
1 is realized. The aluminum-plated steel sheet 12 is plated by being immersed in a molten metal such as aluminum or an aluminum alloy, passed through, or vacuum-adsorbed.
The roll is wound by a carousel-type tension reel device 24 through a pair of a deflor 18 and a touch roll 19. The tension reel device 24 includes two winding devices 25 and 26, and these winding devices 25 and
26 is attached to a rotating body 27 which can be angularly displaced about a horizontal axis. The preceding material 28 of the steel plate 12 is taken up by the winding device 25.
And the following material 29 is wound by another winding device 26. Winding device 2
5 and 26 have the same configuration, of which the winding device 26
3 is shown in FIG.

Referring to FIG. 3, in winding device 26, four segments 16 are arranged on the outer periphery of winding shaft 15 at intervals in the circumferential direction, 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 the steel plate 12 is wound around the sleeve 17 in a coil shape as indicated by reference numeral 30. The winding shaft 15 changes its outer diameter in the axial direction and is formed in a truncated cone shape. The winding shaft 15 is displaced 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 meshes with the spline 21. The gear 22 is driven to rotate by the motor 9 via a gear 23.

FIG. 4 is a sectional view taken along line IV-IV of FIG. In a state where the winding shaft 15 is displaced rightward in FIG. 3 by the cylinder 31, the segment 16 is at the radially inner position 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 radially outward, so that the outer diameter of the sleeve 17 increases as shown in FIG. Sleeve 17
When the steel plate 12 is wound as shown in FIG. 4 (3) by the action of, the distal end portion 12a of the steel plate 12 is absorbed into the sleeve 17 and bites, thereby forming the second portion.
The generation of the top mark flaw 32 on the tip 12a of the steel plate 12b of the layer is suppressed as much as possible. If the sleeve 17 is not provided, the unevenness between the segments 16 is transferred to the steel plate 12, a segment mark is formed, and the quality of the product is deteriorated. The sleeve 17 also functions to prevent such segment marks from being generated on the steel plate 12.

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

FIG. 5 is a block diagram showing an electrical configuration 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 constituting the segment position setting means.

FIG. 6 is a flowchart for explaining the operation of the processing circuit 34 shown in FIG. Step n
From step 1 to step n2, when the steel sheet 12 is switched from the winding device 25 of the tension reel device 24 to the winding device 26 and wound, the speed of the steel plate 12 is higher than the speed at which the coil was wound by the winding device 25. The speed is set to a predetermined low speed, and the segment 16 of the winding device 26 is
The winding shaft 15 is displaced to the left in FIG. 3 so as to be in the expanded state. After cutting, a so-called cropping process is performed. The steel plate 12 has a thickness of 2.0 mm or more in which a winding deviation easily occurs, and the winding speed is, for example, 20 m / min. From the time when the tip of the following material 29 by the shear 14 is cut by the shear 14, the following material 29 is wound around the sleeve 17 of the winding device 26, and is wound once, as shown in FIG. The traveling distance of the steel sheet 12 up to the time when the leading end portion 36 of the steel sheet 12 comes into contact with the succeeding steel sheet 12 or immediately before the bite, and thus the output of the detecting means 33 is provided to the processing circuit 34. When the winding inner diameter of the winding device 26 by the sleeve 17 is 508 mmφ, the feed length of the steel plate 12 from the time when the steel plate 12 is cut by the shear 14 to the point in time shown in FIG. When the winding inner diameter is 610 mmφ, the feed length is set to 8300 mm. Such an operation is illustrated in FIG.
Are achieved in steps n3 to n5.

FIG. 7 is a diagram showing the lapse of time of the expanding state and the contracting state of the segments of the take-up reel 26. As shown in FIG. 1 (1), when the leading end portion 36 of the steel plate 12 comes into contact with the subsequent steel plate, at the same time or immediately before the biting, t
1 is detected by the output of the rotation speed detecting means 33, the operation of the timer 35 causes time t1 to t
The time of 2 is measured, and after the time t1, the operation of the cylinder 31 starts the segment 16 in a contracted state. When the timer 35 reaches a time t2 at which a predetermined time of 5 seconds has elapsed from the time t1, the processing circuit 34 starts the cylinder 16 to be expanded by the cylinder 31 at the time t2. Thus, in FIG.
Gap 3 formed by the leading end portion 36 of FIG.
7 indicates that the segment 16 is in a contracted state after the time t1 and is in the state shown in FIG.
Becomes smaller as indicated by reference numeral 38, and the leading end portion 36 of the steel plate 12 is smoothly wound around the subsequent steel plate. If the predetermined time from time t1 to t2 is 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.
The time of t2 is set to, for example, 5 seconds as described above.

After the time t2, the segment 16 is started to be expanded, so that the gap 38 shown in FIG.
Disappears. At time t3, the position of the segment 16 is set to the maximum diameter position, and this state is shown in FIG. It is desirable that the time between time t2 and time t3 be as short as possible, whereby the gap 38 can be eliminated and the fastening of the coil to the sleeve 17 can be ensured.

[0018]

As described above, according to the present invention, the aluminum-plated steel sheet is hardly slipped between the steel sheets when the steel sheet tip is wound around the sleeve and rolls over and hits the subsequent steel sheet. In the present invention, a gap is likely to be formed between the steel sheet and the steel sheet, but at the same time or immediately before the tip of the steel sheet comes into contact with the subsequent steel sheet, or immediately before biting, the segment starts to expand and contract, thus winding the sleeve and the steel sheet. By starting the expansion of the segments while the take-off force is weak, the gap between the sleeve and the steel plate is eliminated to prevent the telescope-like winding deviation shown in FIG. It becomes possible to fasten.

Further, according to the present invention, by detecting the traveling distance of the steel sheet by the detecting means, the tip of the steel sheet wound on the sleeve of the take-up reel in the expanded state of the segment is simultaneously or simultaneously engaged with the subsequent steel sheet. At this point, the segment starts to change from the expanded to the contracted position, and after the predetermined time measured by the timer from the start of the contracted state, the segment is expanded again. Start returning to the state. Thus, the aluminum-based plated steel sheet can be wound with a relatively simple configuration without causing a winding deviation.

As described above, according to the present invention, it is possible to prevent the winding deviation of the aluminum-based plated steel sheet and thereby to stop the operation of the high-speed continuous line caused by the winding deviation. Improvement can be achieved.

Further, since no winding deviation coil is generated, a safe driving operation can be performed.

[Brief description of the drawings]

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

FIG. 2 is a diagram schematically illustrating the entire configuration of an embodiment of the present invention.

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

FIG. 4 is a simplified cross-sectional view taken along the line IV-IV of FIG. 3;

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

FIG. 6 is a flowchart for explaining the operation of the processing circuit shown in FIG. 5;

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

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

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

[Explanation of symbols]

 DESCRIPTION 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 type tension reel device 25, 26 Winding device 31 Cylinder 33 Number of rotation detection means 34 Processing circuit 35 Timer

────────────────────────────────────────────────── (5) References JP-A-54-20937 (JP, A) JP-A-62-183909 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21C 47/02 B21C 47/30

Claims (1)

(57) [Claims] 1. A winding reel comprising: a plurality of segments arranged at intervals in a circumferential direction on an outer periphery of a winding shaft; and a winding reel provided with a sleeve made of an elastic material surrounding these segments. A segment position setting means for setting a position, a motor for driving a take-up reel, a detecting means for detecting a traveling distance of an aluminum-plated steel sheet, and a predetermined time has elapsed since the segment setting was started by the segment setting means. In response to the output of the timer and the detection means, when the segment is wound on the take-up reel in the expanded state, the contraction of the segment is performed simultaneously with or immediately before the tip of the steel plate comes into contact with the subsequent steel plate. The segment position setting is started by the position setting means, and when the predetermined time measured by the timer has elapsed since the start of the contraction, the segment position setting is performed. Winding apparatus of an aluminum-based plated steel sheet, characterized in that it comprises a processing means for setting the maximum diameter position segment location to start expansion of the segments by the step.