JPH0515926A - Coiler - Google Patents

Abstract

PURPOSE:To provide a coiler wherein a reel mark is prevented from being generated on a coil and the yield of the coil is improved in taking up a coil of steel sheet, etc. CONSTITUTION:A pressing member 27 expanding and contracting in the eccentric direction facing the rear side in the rotary direction 50 from the center of a take-up core is arranged on the outer surface of the end part in the longitudinal direction of plural segments 1 which are combined to male a cylindrical take-up core.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device,
In particular, the present invention relates to a winding device which prevents a reel mark from being generated on a coil such as a steel plate when winding the coil and improves the yield of the coil.

[0002]

2. Description of the Related Art Conventionally, for example, in a line that processes each step of steel sheet manufacturing, the steel sheet is usually conveyed in a coil state between the steps. Therefore, in general, the entry side of each process is
A rewinding device for rewinding the coil is installed, and a take-up device for winding the coil is installed on the outlet side. That is, the coil is unwound by the unwinding device on the entrance side of the process to be processed into a bare steel plate, and then processed on the outgoing side by the winding device to be coiled again to the next process. Sent.

FIG. 7 is a longitudinal sectional view of the winding device, and FIG. 8 is an enlarged sectional view taken along line DD of FIG. The winding device shown in FIGS. 7 and 8 has a cylindrical winding core 26 formed by combining segments 1 that are divided into four equal parts along the circumference in the axial direction. A plurality of protrusions 16 are formed on the lower surface of the segment 1 (on the side of the center of the winding core 26) toward the center of the winding core 26. The convex portion 16 has an inclined surface formed on one side in the axial direction of the winding core 26. Then, one end of the push rod 4 is attached to the winding core 2 in the axial direction of the central portion of the winding core 26.
It is arranged in a state of penetrating to the outside of 6. The tip of the push rod 4 extended to the outside of the winding core 26 of the push rod 4 has an opening / closing cylinder mounting retainer 11
It is connected to the opening / closing cylinder 12 via. And
The push rod 4 is designed to move forward and backward in the axial direction by the forward and backward drive of the opening and closing cylinder 12.

Inside the take-up core 26, a reel shaft 3 is provided around the push rod 4 and, like the push rod 4, the take-up core 26.
It has one end extended to the outside. The reel shaft 3 has a flange-like diameter at a position where the reel shaft 3 extends from the inside to the outside of the winding core 26, and a retainer 7 is provided around the winding core 26 side of this portion. The tip of the opening / closing cylinder 12 side of the segment 1 is held in a tubular shape. The tip of the reel shaft 3 extended to the outside of the winding core 26 reaches the open / close cylinder mounting retainer 11. The reel shaft 3 is connected to a rotary drive source (not shown).

On the outer peripheral portion of the reel shaft 3 located inside the winding core 26, there are circumferentially provided recesses which engage with the wedge 2 and recesses which engage with the protrusion 16 of the segment 1, which will be described later. It is formed in four places along the line. On the other hand, a reel center bearing 9 is installed on the outer circumference of a portion of the reel shaft 3 extended to the outside of the winding core 26 near the winding core 26, and a reel rear end bearing 10 is installed on the outer circumference of the tip end portion. Has been done. The reel shaft 3 is smoothly rotated by the two bearings 9 and 10.

The wedges 2 are engaged with the recesses of the reel shaft 3 so as to be movable back and forth in the axial direction. The outside of each wedge 2 engages with the convex portion 16 of the segment 1 and is formed with an inclined surface facing the inclined surface of the convex portion 16 of the segment 1. The wedge 2 is connected to the push rod 4, and the wedge 2 is also moved forward and backward in the axial direction in response to the forward and backward movement of the push rod 4 in the axial direction.
When the wedge 2 moves back and forth in the axial direction, the inclined surface of the segment 1 is pushed along the inclined surface of the wedge 2, and each segment 1 is advanced and retracted in the radial direction of the winding core 26, and the diameter of the winding core 26 is enlarged. ,to shrink. That is, when the steel plate is wound around the winding core 26, the open / close cylinder 12 is operated to pull the push rod 4 toward the arrow L side, move the wedge 2 in the arrow L direction, and move along the inclined surface of the wedge 2. The inclined surface of the segment 1 moves, each segment 1 is moved in the outer peripheral direction of the winding core 26, and the diameter of the winding core 26 is enlarged. On the other hand, when pulling out the coiled steel plate from the winding core, the reverse operation is performed to move each segment 1 toward the center of the winding core 26,
The diameter of the winding core 26 is made smaller than the inner diameter of the coiled steel plate, and the coil is extracted from the winding core 26.

Further, the open / close cylinder 1 for the winding core 26
A tip support shaft 6 is connected to the side away from 2. One end of the tip support shaft 6 on the winding core 26 side has a flange shape.
Supports the tip of each segment 1 on the side not supported by the retainer 7. Further, a tip support bearing 8 is installed on the outer circumference of the other tip of the tip support shaft 6, and the tip support shaft 8 allows the tip support shaft 6 to rotate smoothly.

In the winding device having the above-mentioned structure, it is necessary to change the diameter of the winding core 26 for winding the steel plate and for extracting the coiled steel plate. Therefore, when the diameter of the winding core 26 is reduced, the adjacent segments 1 do not interfere with each other.
A certain amount of gap is provided between the segments 1. However, when the diameter of the winding core 26 is enlarged, the gap is enlarged. Therefore, when the steel plate is wound in this state, the coil is pushed into the enlarged gap,
There is a problem that buckling occurs in a portion close to the center of the coil. Then, the part where the buckling occurs becomes a product defect, and the yield of the coil is remarkably reduced.

Therefore, as a conventional example for solving this problem, as shown in FIG. 9, when the diameter of the winding core 26 is enlarged, the segment 1 and the segment 1 are formed for the purpose of filling the gap between the segments 1. Between, that is, segment 1
There is known a conventional example in which the sub-segment 13 is present so as to support both ears. In this winding device, an outer peripheral portion, that is, a segment 1 and a segment 1 located at an intermediate portion between the concave portions which the wedges 2 of the reel shaft 3 engage with each other.
The inner wedges 14 are engaged with the positions facing each other. The sub segment 13 is engaged with the outer circumference of the winding core 26 of each inner wedge 14 in the same manner as the engagement relationship between the segment 1 and the wedge 2. And each inner wedge 14 is a wedge 2
It is connected to the push rods 4 in the same manner as described above.
4 is also driven back and forth, and this movement causes the sub segment 13 to move back and forth in the radial direction of the winding core 26. That is, when the open / close cylinder 12 is operated to pull the push rod 4 to increase the diameter of the winding core 26, the sub-segment 13 moves in the outer peripheral direction of the winding core 26 and is generated between the segments 1. The sub-segment 13 is inserted into the gap to fill the gap. On the other hand, when pulling out the coiled steel plate from the winding core 26, the sub-segment 13 is moved toward the center to form a gap between the segments 1 by performing an operation opposite to the above. To do. In this way, the segments 1 are prevented from interfering with each other and the occurrence of buckling near the center of the coil is mitigated.

As shown in FIG. 10, the winding core 2 of the sub-segment 13 of the winding device shown in FIG. 9 is used.
The part that the coil contacts when the diameter of 6 is expanded (outer surface)
By sticking the elastic member 15 on the outer surface of the segment 1 and projecting the elastic member 15 to the outside of the segment 1, the edge between the segment 1 and the sub-segment 13 is relaxed, and the edge prevents the inner diameter of the coil from being damaged. A winding device is known (Japanese Patent Application Laid-Open No. 56-148412).

[0011]

As described above, the winding device provided with the sub-segment 13 is the winding core 2
When the diameter of 6 expands or contracts, between the parts, that is, between the segment 1 and the wedge 2, between the segment 1 and the reel shaft 3, between the sub segment 13 and the reel shaft 3, the sub segment 13 And inner wedge 14
Between the parts, in order to realize smooth expansion or contraction of the diameter of the winding core 26 due to the sliding, a certain amount of gap (usually 0 ..
It is essential that 1 to 0.5 mm) be present.

However, if there is a gap between the parts, the take-up tension of the steel sheet when the steel sheet is taken up pulls the segment 1 and the sub-segment 13 in the direction opposite to the take-up direction (winding tension generation direction). Therefore, there is a problem in that a gap is generated between the segment 1 and the sub-segment 13, and a gap is generated in this portion.
This step is directly transferred to a portion close to the center of the coil and becomes a product defect called a reel mark. The portion where the reel mark is generated must be removed by scrap processing or the like, and the yield of the coil is significantly increased. There was a problem of lowering it. Then, particularly when the steel plate is a thin plate, the reel mark is significantly generated.

An object of the present invention is to solve such a problem, and at the time of winding a coil of a steel plate or the like, it is possible to prevent the generation of a reel mark on the coil and improve the yield of the coil. It is an object of the present invention to provide a winding device for the above.

[0014]

In order to achieve this object, the present invention is directed to a segment in which a plurality of cylinders are combined to form a cylindrical take-up core, and the segment is engaged from the inside to advance and retreat in the axial direction. By means of a wedge that makes the diameter of the winding core variable, a sub-segment that can advance and retreat from the inside between the segments, and a sub-segment that engages the sub-segment from the inside and winds the sub-segment by advancing and retracting in the axial direction. An inner wedge that advances and retracts in the radial direction of the core; and a reel shaft that supports the wedge and the inner wedge from the inside and that supports the segment so as to advance and retract in the radial direction, and the segment and the sub-segment with respect to the reel shaft. In a winding device in which concave and convex engagement is made so as to be movable back and forth in the radial direction, The surface, there is provided a winding apparatus characterized in that disposed a pressing member expands and contracts in the eccentric direction toward the rear rotating direction from the center of the winding core.

[0015]

When the pressing member presses the winding core in an eccentric direction that is rearward in the rotational direction with respect to the center of the winding core, when the diameter of the winding core is increased, that is, the winding core is
For example, when winding a steel plate, the segment can be always held in a state of being pressed to the side pulled by the winding tension of the steel plate. Therefore, during the winding operation of the steel plate, the segment can be pressed against the reel shaft at the rear side in the rotation direction. For this reason,
Even when the winding tension of the steel sheet is applied to the segment, the segment does not shift from the predetermined position, and the winding core can be always kept in a perfect circle.

[0016]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a longitudinal configuration cross-sectional configuration diagram of a winding device according to an embodiment of the present invention.
The portion below the broken line corresponds to the BB cross section shown in FIG. FIG. 2 is an enlarged cross-sectional view of the pressing member mounting portion of the winding device shown in FIG. 1, and FIG. 3 is an enlarged partial cross-section of the winding core portion in a state in which the diameter of the winding core of the winding device shown in FIG. 1 is enlarged. FIG. 4 is a partially enlarged sectional view taken along line CC of the winding device shown in FIG. 1 in which the diameter of the winding core is enlarged, and FIG.
FIG. 6 is an enlarged partial cross-sectional view of the winding core portion of the winding device shown in FIG. 6, in which the diameter of the winding core is reduced, and FIG. 6 is a sectional view taken along line CC of the winding device of FIG. It is an expanded partial sectional view.

As shown in FIGS. 1 to 6, in the winding device of the present embodiment, the winding core 26 is composed of four segments 1 of the same shape divided on the circumference along the axial direction. There is. Then, the segment 1 and the four sub-segments 13 having the same shape are alternately combined. A plurality of convex portions 16 are formed on the lower surface of each segment 1 (on the side of the center of the winding core 26), and an inclined surface is formed on one of these axial surfaces. Further, similar convex portions 17 are formed on the lower surface of each sub-segment 13. Further, one end of the push rod 4 is arranged in the axial direction of the center of the winding core 26 so that one end of the push rod 4 penetrates the outside of the winding core 26. One end of the push rod 4, that is, the tip extending to the outside of the winding core 26 is connected to the opening / closing cylinder 12 via the opening / closing cylinder attachment retainer 11. The push rod 4 is designed to move forward and backward by the forward and backward movement of the opening and closing cylinder 12.

The reel shaft 3 is fitted on the push rod 4. That is, this reel shaft 3
Is the winding core 26 with the push rod 4 inside.
One end is exposed to the outside of. The diameter of the reel shaft 3 is increased like a flange at a position where the reel shaft 3 extends from the inside to the outside of the winding core 26, and a retainer 7 is provided around the winding core 26 side outer peripheral end of this portion. .. The retainer 7 has a tubular shape and holds the tips of the segments 1 and the sub-segments 13 on the open / close cylinder 12 side from the outside. The tip of the reel shaft 3 extended to the outside of the winding core 26 reaches the opening / closing cylinder attachment retainer 11 and is connected to a rotary drive source (not shown). The drive source drives the reel shaft 3 to rotate. Rotates.

On the outer peripheral portion of the reel shaft 3 located inside the winding core 26, there are provided a concave portion 3a which engages with the wedge 2 and a concave portion 3b which engages with the convex portion 16 of the segment 1, which will be described later. Inner wedge 1 described later
4 and the projection 1 of the sub-segment 13
A concave portion 3 d that engages with 7 is formed. On the other hand, a reel central bearing 9 is installed on the outer periphery of a portion of the reel shaft 3 extended to the outside of the winding core 26 and close to the winding core 26, and the reel shaft 3 of the reel shaft 3 extended to the outside of the winding core 26 is installed. A reel rear end bearing 10 is installed on the outer periphery of the front end portion. The reel shaft 3 is smoothly rotated by the two bearings 9 and 10.

Wedges 2 are individually engaged with the recesses 3a of the reel shaft 3, and inner wedges 14 are respectively engaged with the recesses 3c, and these are arranged alternately in the circumferential direction. Outside the wedge 2 and the inner wedge 14, inclined surfaces corresponding to the inclined surfaces of the convex portion 16 of the segment 1 and the convex portion 17 of the sub-segment 13 are formed. Then, the wedge 2 and the inner wedge 14
1 are respectively connected to the push rods 4 at the right ends in FIG. 1, and the wedges 2 and the inner wedges 14 are also designed to be axially forward / backward driven in response to the axial forward / backward driving of the push rods 4. When the wedge 2 moves back and forth in the axial direction, the inclined surface of the segment 1 which is in contact with the inclined surface of the wedge 2 is pushed along the inclined surface of the wedge 2 to move each segment 1 in the radial direction of the winding core 26, The diameter of the winding core 26 is enlarged or reduced. Similarly, as the inner wedge 14 moves back and forth in the axial direction, the inner wedge 14 moves forward and backward in the radial direction of the winding core 26.

Further, the opening / closing cylinder 1 for the winding core 26
A tip support shaft 6 is connected to the side away from 2. One end of the tip support shaft 6 on the winding core 26 side has a flange shape, and the flange portion 18
Supports the other end of each segment 1 (the side not supported by the retainer 7). A tip support bearing 8 is provided on the outer circumference of the other tip of the tip support shaft 6.

Further, one pressing member 27 is provided for each segment at the tips of the retainer 7 and the flange portion 18. The pressing member 27 is attached to the bracket 30 fixed to the retainer 7 and the flange portion 18, and includes the winding core 26.
A pin 29 that can move back and forth in the direction of the rotation direction rearward of the center O, and a spring 3 that urges the pin 29 in the direction.
1 and a C-shaped retaining ring 28 at the head of the pin 29 for preventing the pin 29 from coming off. Therefore, the spring 31
Presses the segment 1 by urging from the outer surface of the longitudinal end of the segment 1 in the eccentric direction toward the rear side in the rotation direction 50 with respect to the center O of the winding core. That is, the pressing member 27 comes into contact with the outer surface of the end of the segment 1 in the longitudinal direction as the diameter of the winding core 26 increases, and as the diameter further increases, the pressing member 27 becomes larger than the center O of the winding core 26. When the segment 1 is pressed in the eccentric direction toward the rear side of the rotation direction 50 and the steel sheet is wound, the segment 1 is always held and fixed in a state of being pressed to the side pulled by the winding tension of the steel sheet. The winding core 26 has a perfect circular shape in this state. On the other hand, when the diameter of the winding core 26 is reduced, the pressing member 27 is separated from the segment 1 contrary to the above.

Next, the specific operation of this winding device will be described. First, when a certain process is finished and the steel sheet supplied from the outlet side of the line is wound into a coil by using the winding device of this embodiment, the opening / closing cylinder 1
2 to pull the push rod 4 toward the arrow L side,
The wedge 2 is moved in the arrow L direction. With this movement, the inclined surface of the segment 1 in contact with this inclined surface is pushed along the inclined surface of the wedge 2, and each segment 1 is moved in the outer peripheral direction of the winding core 26, and the winding core 26 is moved. Enlarge the diameter of. In parallel with this movement, the inner wedge 14 also pushes the inclined surface of the sub segment 13 in the direction of the arrow L, moves each sub segment 13 in the outer peripheral direction of the winding core 26, and as shown in FIG. The sub-segment 13 is inserted into the gap created between the segments 1. By doing so, the gap generated between the segments 1 can be filled with the sub-segment 13. Further, in parallel with this movement, as shown in FIG. 4, the pressing member 27 presses the segment 1 in the eccentric direction, which is rearward of the center O of the winding core 26 in the rotational direction 50. By this pressing, the segment 1 is pulled by the winding tension of the steel plate, that is, the side wall of the convex portion 16 opposite to the rotation direction 50, and the side wall of the concave portion 3b of the reel shaft 3 which faces the side wall of the convex portion 16. And are pressed and fixed. In this way, when the segment 1 is pressed and fixed in advance when the segments 1 are brought into contact with each other when pulled by the winding tension of the steel sheet,
Even if the winding tension is applied to the segment 1, the segment 1 does not shift from the predetermined position, and the winding core 26 can be always kept in a perfect circle during the winding operation of the steel sheet.

Then, a desired amount of steel plate is wound around the winding core 26 in this state to produce a coil. Next, after the winding of the predetermined amount of steel sheet is completed, the opening / closing cylinder 12 is operated, and contrary to the above, the push rod 4 is pushed in the direction of arrow S to move the wedge 2 in the direction of arrow S. With this movement, along the inclined surface of the wedge 2, the inclined surface of the segment 1 in contact with this inclined surface moves in the opposite direction to the above, and each segment 1 moves to the center side of the winding core 26. Then, the diameter of the winding core 26 is reduced. Further, in parallel with this movement, the inner wedge 14 also moves in the direction of arrow S. Along with this movement, the sub-segment 13 that is in contact with the inclined surface of the inner wedge 14 is in contact with this inclined surface.
The inclined surface of the sub-segment 13 moves in the direction opposite to the above, each sub-segment 13 moves toward the center of the winding core 26, and as shown in FIG. A gap is formed between the two. Further, in parallel with this movement, the segment 1 is pressed by the pressing member 27.
Released from pressure, segment 1 and reel shaft 3
Form a gap between and. By doing so, the diameter of the winding core 26 can be smoothly reduced. As described above, the diameter of the winding core 26 is made smaller than the inner diameter of the coiled steel plate, and the coil is extracted from the winding core 26.

In the coil produced by the above method, no reel mark was found in the portion near the center of the coil. Therefore, it was possible to manufacture a good coil with a significantly improved yield. In this embodiment, the pressing member 2
7 are arranged one at each end of each segment 1, but not limited to this, the number of the segments 1 to be arranged can be arbitrarily determined depending on the material of the pressing member 27, the winding tension, and the like. Good.

In the present embodiment, the case where the pressing member 27 presses the segment 1 when the diameter of the winding core 26 is enlarged has been described, but the present invention is not limited to this, and at least when winding the steel sheet, the segment 1 If it is possible to hold the convex side wall on the side opposite to the rotation direction 50 and the concave side wall of the reel shaft 3 that engages with the convex side wall under pressure contact, the diameter of the winding core 26 is initially expanded. From pressing member 2
7 may press segment 1.

In this embodiment, the pressing member 27 using the spring 31 has been described, but the present invention is not limited to this, and it goes without saying that a pressing member having another structure may be used. Further, in the present embodiment, the winding of the steel sheet has been described, but the present invention is not limited to this, and it goes without saying that it may be used in a winding device for winding another material.

[0028]

As described above, according to the winding device of the present invention, the eccentric direction is formed on the outer surface of the longitudinal end portion of the segment so as to face the rotation direction rear side with respect to the center of the winding core. By arranging the expanding and contracting pressing member, the segment can be pressed against the reel shaft to the rear side in the rotation direction during the coil winding operation.
Even if a winding tension is applied to the segment, the segment does not shift from a predetermined position. Therefore, the winding core can always be kept in a perfect circle, and the reel mark can be prevented from occurring on the coil. As a result, the yield of the coil can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of a winding device according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a pressing member mounting portion of the winding device shown in FIG.

FIG. 3 is an enlarged partial cross-sectional view of the winding core portion of the winding device shown in FIG. 1, in which the diameter of the winding core is enlarged.

FIG. 4 is an AA enlarged partial sectional view of the winding device shown in FIG. 1 in a state in which a diameter of a winding core is enlarged.

5 is an enlarged partial cross-sectional view of the winding core portion of the winding device shown in FIG. 1 with the diameter of the winding core reduced.

FIG. 6 is an enlarged partial cross-sectional view taken along the line AA of the winding device shown in FIG. 1, in which the diameter of the winding core is reduced.

FIG. 7 is a cross-sectional configuration diagram of a conventional winding device.

FIG. 8 is an enlarged cross-sectional view of a winding core portion of a conventional winding device.

FIG. 9 is an enlarged cross-sectional view of a winding core portion of a conventional winding device.

FIG. 10 is an enlarged cross-sectional view of a winding core portion of a conventional winding device.

[Explanation of reference symbols] 1 segment 2 wedge 3 reel shaft 4 push rod 6 tip support shaft 7 retainer 12 opening / closing cylinder 13 sub segment 14 inner wedge 16 convex portion 17 convex portion 26 winding core 27 pressing member 28 C-shaped retaining ring 29 pin 30 bracket 31 spring 50 rotation direction 51 segment center

Claims (1)

Claim: What is claimed is: 1. A segment comprising a plurality of combined winding cores and a cylindrical winding core. The segments are engaged from the inside, and the diameter of the winding core is varied by advancing and retracting in the axial direction. And a sub-segment that can be moved forward and backward from the inside between the segments, and an inner wedge that engages the sub-segment from the inside and moves the sub-segment forward and backward in the radial direction of the winding core by forward and backward movement in the axial direction. When,
A reel shaft that supports the wedge and the inner wedge from the inside and that supports the segment in a radial direction so that the segment and the sub-segment are concavo-convexly engaged with the reel shaft in a radial direction. In the winding device configured as described above, a pressing member that expands and contracts in an eccentric direction toward the rear side in the rotation direction with respect to the center of the winding core is disposed on the outer surface of the longitudinal end portion of the segment. Taker.