JP5866952B2 - Reel rubber sleeve and steel sheet take-up device - Google Patents

Description

  The present invention relates to a winding device in a thin steel plate process line and a reel rubber sleeve mounted on a tension reel of the winding device in order to increase the winding diameter.

In the thin steel plate process line, for example, in a winding device as shown in FIG. 4, the steel plate S that has been subjected to, for example, annealing is wound in a coil shape by the tension reel 10. Specifically, the steel sheet S processed in the process line is passed from the deflector roll 20 to the tension reel 10, and the tension reel 10 is rotated to the winding side to wind the steel sheet S in a coil shape.
Here, when winding around the tension reel 10 is started, automatic winding is performed by using the belt wrapper 11.

On the other hand, the mandrel 12 of the tension reel 10 has a structure whose diameter can be enlarged and reduced. That is, after the mandrel 12 is enlarged and the steel plate is wound up to a predetermined length, the mandrel 12 is reduced, and a gap is provided between the mandrel 12 and the coil, whereby the coiled steel plate S is removed. Can be extracted from.
In a thin plate process line, the mandrel 12 is generally designed with a diameter of about 470 mm (18.5 inches) to 608 mm (20 inches), and the winding device 1 is designed in accordance with the specifications of the mandrel 12. Is done.

However, depending on the product, it may be required to further increase the inner diameter of the coil because of its quality.
In order to make the winding inner diameter of the coil larger than the normal design range in response to such a requirement, for example, a method of attaching an outer segment to a segment of an existing tension reel 10 can be mentioned.

However, in order to attach the outer segment to the mandrel 12, it is necessary to provide a plurality of mounting screw holes in the mandrel 12 and fix them with mounting bolts.
For this reason, there is a problem that the installation work becomes a large scale, the line must be stopped for a long time, and the production time is lost.
Further, when the operation is returned to the normal inner diameter of the coil (for example, φ508 mm), the outer segment needs to be removed, the operation is stopped again on a large scale, and the production time is lost.

Therefore, as a method of easily changing the coil winding inner diameter, there is a method of attaching a reel rubber sleeve 13 to the outer peripheral surface of the mandrel 12 of the tension reel 10 as shown in FIG.
The reel rubber sleeve 13 has a structure in which a segment (intermediate sleeve) 13a divided into a plurality of parts (for example, four parts) in the circumferential direction is integrated by an inner cylinder sleeve 13b and an outer cylinder sleeve 13c. Then, the reel rubber sleeve 13 configured as described above expands and contracts to follow the expansion and contraction of the mandrel 12 (see, for example, FIG. 1).

Further, the reel rubber sleeve 13 can be easily detached from the mandrel 12 by making the inner diameter of the inner cylinder sleeve 13 b larger than the reduced diameter of the mandrel 12.
However, automatic winding using the belt wrapper 11 is difficult to cope with a wider inner diameter (for example, a diameter exceeding φ608 mm) than usual due to the structure of the belt wrapper 11.
For this reason, the winding of the steel sheet S around the tension reel 10 requires that the steel sheet S is passed over the mandrel 12 and the line is temporarily stopped, and the operator must work to fasten the end of the steel sheet S to the mandrel 12 with adhesive tape. Become. However, this work is a dangerous work in the line, and there is a problem that the production time is lost because the line is stopped.

Here, as a specific example, a case where the existing belt wrapper 11 is used for winding with a coil inner diameter of φ1,000 mm will be described with reference to FIG. 5.
As shown in FIG. 5, the mandrel 12 is provided with a reel rubber sleeve 13 for setting the inner diameter of the coil to φ1,000 mm. The existing belt wrapper 11 is, for example, for a coil inner diameter of φ608 mm (hereinafter referred to as “standard”). For example, when winding with a coil inner diameter of φ1,000 mm (hereinafter referred to as “large diameter”), The swing arm 14 is stopped in the middle.

At this time, the belt 15 which is a guide for winding the steel sheet S can contact the mandrel 12 only about the half circumference (0.508 = φ508 mm / φ1,000 mm) of the mandrel 12. Therefore, when the steel sheet S is to be wound, there is a problem that the steel sheet S is separated from the mandrel 12 at the start point 15 a where the belt 15 does not contact the mandrel 12.
Therefore, the belt can be guided in such a manner that the steel plate S can be guided around the entire circumference of the mandrel 12 by pressing the swing arm lower end pawl 14a, using a lower support roll (not shown) at the time of winding, or newly installing a holding guide 16. A method for coping with the above problem by modifying the wrapper 11 can be considered.

However, in this method, when the change of the inner diameter of the coil occurs, for example, in order to change the inner diameter from the large diameter coil to the standard coil, it is necessary to remove the lower end claw of the belt wrapper 11 in handling the equipment. , Line stop is required for a long time, and flexible response is not possible.
Therefore, Patent Document 1 describes a method in which an electromagnet is embedded in a mandrel 12 instead of the belt wrapper 11 and the electromagnet is turned on / off so that the steel sheet S is attracted / detached from the mandrel 12. ing.
Patent Document 2 describes a technique for preventing the occurrence of winding deviation of a steel sheet without using a strong magnet by using a reel rubber sleeve in which a magnetic material is embedded in a hollow portion.

JP 2001-252716 A JP 2007-268595 A

However, in the technique described in Patent Document 1, when an electromagnet is to be embedded in a reel rubber sleeve, wiring is difficult, and even if it can be installed, a large-scale work is still necessary, which hinders productivity. There is a problem of being.
Further, even in the technique described in Patent Document 2, although it is possible to prevent the occurrence of the winding slip of the steel sheet without using a strong magnet, there is room for examination on performing the coil extraction operation safely and reliably. .

  Accordingly, the present invention has been made paying attention to the above-mentioned problems, and the purpose thereof is to enable the steel sheet winding operation and the coil extraction operation to be performed safely and reliably, and for switching in accordance with the expansion of the inner diameter. An object of the present invention is to provide a reel rubber sleeve and a steel sheet winding device that can significantly reduce the working time without requiring a large-scale work.

A reel rubber sleeve according to claim 1 of the present invention for solving the above-mentioned problems is used by being mounted on a tension reel of a steel sheet winding device that winds a strip-shaped steel sheet into a coil shape, and forms a hollow cylindrical shape. Reel rubber sleeve,
Having a housing made of magnetic material;
In the housing part, a permanent magnet having a rotation axis parallel to the axial direction of the reel rubber sleeve is rotatably installed,
By rotating the permanent magnet, the direction of the magnetic pole of the permanent magnet can be changed on the surface including the radial direction of the reel rubber sleeve .

Further, in the reel rubber sleeve, an outer peripheral surface portion of the reel rubber sleeve on a line extending from a center of the reel rubber sleeve on a surface including a radial direction of the reel rubber sleeve to a position where the permanent magnet is installed It is preferable that a magnetic material is embedded.
Further, in the reel rubber sleeve, it is preferable that the rotating shaft protrudes from an end portion in the axial direction of the reel rubber sleeve, and a handle for rotating the rotating shaft is provided at an end portion of the rotating shaft.
Also, a steel sheet winding device that includes the reel rubber sleeve and winds a strip-shaped steel sheet in a coil shape, the steel sheet winding device having a coil car that inserts and removes the coil into and from the tension reel, It is preferable that the coil car is provided with a handler connectable to the provided handle and a motor for rotating the handler.

  According to the present invention, it is possible to safely and reliably perform the winding operation of the steel plate and the coil extraction operation, and greatly reduce the operation time without requiring a large-scale operation for switching due to the expansion of the inner diameter. It becomes possible.

It is a figure which shows the structure in one Embodiment of the reel rubber sleeve which concerns on this invention, (a) is sectional drawing in alignment with the radial direction of the reel rubber sleeve at the time of coil winding, (b) is a reel rubber sleeve at the time of coil extraction Sectional drawing which follows radial direction, (c) is sectional drawing which follows the 1c-1c line of (a). It is the schematic which shows the structure in one Embodiment of the winding apparatus of the steel plate which concerns on this invention. It is a side view which shows the structure in other embodiment of the winding apparatus of the steel plate which concerns on this invention. It is the schematic which shows the structure of the winding apparatus provided with the conventional tension reel. It is a figure which shows the structure of the conventional winding apparatus, and is the schematic which showed the example of the modification required for a belt wrapper when the internal diameter of a coil is expanded.

Embodiments of a reel rubber sleeve and a steel sheet winding device according to the present invention will be described below with reference to the drawings.
<Reel rubber sleeve>
1A and 1B are diagrams showing a configuration of an embodiment of a reel rubber sleeve according to the present invention, in which FIG. 1A is a cross-sectional view taken along the radial direction of the reel rubber sleeve when winding a coil, and FIG. Sectional drawing which follows the radial direction of a reel rubber sleeve, (c) is sectional drawing which follows an axial direction.

  As shown in FIG. 1, the reel rubber sleeve 13 for expanding the inner diameter of the coil formed by winding the steel plate S to be larger than the maximum diameter possible with the mandrel 12 is formed by being divided into a plurality in the circumferential direction. . Specifically, the reel rubber sleeve 13 includes a cylindrical inner cylinder sleeve 13b, a cylindrical outer cylinder sleeve 13c having a larger diameter than the inner cylinder sleeve 13b, and the inner cylinder sleeve 13b and the outer cylinder sleeve 13c. The connecting portion 13d is connected in the direction. A segment 13a as a space is defined by the outer peripheral surface of the inner cylindrical sleeve 13b, the inner peripheral surface of the outer cylindrical sleeve 13c, and the connecting portion 13d. That is, the space formed by the inner cylinder sleeve 13b and the outer cylinder sleeve 13c is divided into a plurality of (for example, four) segments 13a with the connecting portion 13d as a partition. The inner cylinder sleeve 13b, the outer cylinder sleeve 13c, and the connecting portion 13d are all made of an elastic material, and the inner cylinder sleeve 13b, the outer cylinder sleeve 13c, and the connecting portion 13d expand and contract to follow the expansion and contraction of the mandrel 12.

Further, the reel rubber sleeve 13 can be easily detached from the mandrel 12 by making the inner diameter of the inner cylinder sleeve 13 b larger than the reduced diameter of the mandrel 12.
The segment 13a may be formed of a solid material such as metal or resin. In that case, the connecting portion 13d can be omitted.

<Permanent magnet>
A permanent magnet 30 is built in the reel rubber sleeve 13. Specifically, the permanent magnet 30 is rotated about an axis parallel to the axial direction of the reel rubber sleeve 13 (mandrel 12) in such a manner that the reel rubber sleeve 13 is fitted into the segment 13a on the inner peripheral surface side of the outer sleeve 13c. An accommodating portion 13e that accommodates it is formed. And in this accommodating part 13e, the rotating shaft 31 parallel to the axial direction of the reel rubber sleeve 13 is rotatably provided. Since the permanent magnet 30 is fixed to the rotating shaft 31, by rotating the rotating shaft 31, the permanent magnet 30 can be rotated about an axis parallel to the axial direction of the reel rubber sleeve 13 (mandrel 12). It has become. In addition, the axial dimension of the permanent magnet 30 that is rotatably accommodated in the accommodating portion 13e is set to a dimension that is equal to or greater than the width of the steel sheet S that is wound around the reel rubber sleeve 13. As described above, the permanent magnet 30 is rotatably installed in the reel rubber sleeve 13, so that the direction of the magnetic pole of the permanent magnet 30 can be changed on the surface including the tangential direction and the radial direction of the outer peripheral surface.

<Steel take-up device>
Next, an embodiment of a steel sheet winding device according to the present invention will be described with reference to the drawings.
FIG. 2 is a schematic view showing a configuration in an embodiment of a steel sheet winding device according to the present invention.
As shown in FIG. 2, the winding device 1 includes a tension reel 10 and a deflector roll 20. The tension reel 10 includes at least a mandrel 12 and a reel rubber sleeve 13, and may include a belt wrapper 11, a swing arm 14, and a belt 15 as necessary. The winding device 1 configured in this way passes the steel sheet S processed in the process line from the deflector roll 20 to the tension reel 10 and rotates the tension reel 10 to the winding side to make the steel sheet S into a coil shape. It is wound around.

<Wounding of steel plate>
When the direction of the magnetic pole of the permanent magnet 30 is parallel to the radial direction of the reel rubber sleeve 13 made of a magnetic material, a line of magnetic force M (see FIG. 1) is generated between the permanent magnet 30 and the reel rubber sleeve 13. since, generation range a _M of the magnetic field lines M of the outer circumferential surface of the reel rubber sleeve 13 is magnetized.
Thereafter, when the steel sheet S is wound by the mandrel 12 fitted with a reel rubber sleeve 13, the source range A _M of the magnetic field lines M of the outer circumferential surface of the reel rubber sleeve 13, that the leading end of the wound are the steel sheet S is positioned Since the steel sheet S is adsorbed to the reel rubber sleeve 13, it can be suitably wound around the tension reel 10.

<Removal of coil>
On the other hand, when the rotating shaft 31 is rotated to change the direction of the magnetic pole of the permanent magnet 30 to a direction orthogonal to the radial direction of the reel rubber sleeve 13, the magnetic lines of force M on the outer peripheral surface of the reel rubber sleeve 13 disappear.
As a result, the reel rubber sleeve 13 can be brought into a non-magnetized state, so that the adsorption between the steel plate S and the reel rubber sleeve 13 is eliminated, and the coil is extracted from the reel rubber sleeve 13 and the mandrel 12 to which the reel rubber sleeve 13 is attached. It becomes possible. That is, even in the reel rubber sleeve 13 where it is difficult to use a large part such as an electromagnet, such as the mandrel 12 body, the attachment / detachment of the steel plate (coil) S can be easily controlled.

<Non-magnetic material>
Here, the nonmagnetic material 40 may be embedded in a part of the outer peripheral surface of the portion where the permanent magnet 30 is installed in the reel rubber sleeve 13. The “part of the outer peripheral surface of the portion where the permanent magnet 30 is installed” means, for example, the outer peripheral surface of the outer cylindrical sleeve 13c on the extension line from the center of the reel rubber sleeve 13 toward the position where the permanent magnet 30 is installed. Part.
By adopting such a configuration, when the permanent magnet 30 is changed to a direction perpendicular to the radial direction of the reel rubber sleeve 13, there is no magnetization remaining on the outer peripheral surface of the reel rubber sleeve 13 by the nonmagnetic material 40. The above-described coil can be extracted more easily.

<Handle>
Further, the rotating shaft 31 of the permanent magnet 30 may be protruded from the axial end of the reel rubber sleeve 13, and the handle 50 may be provided at the end of the rotating shaft 31. The end of the rotating shaft 31 provided with the handle 50 is preferably the end on the coil extraction side, for example. As described above, by providing the handle 50, the direction of the permanent magnet 30 can be changed by rotating the handle 50.

(Other embodiments)
FIG. 3 is a schematic view showing another embodiment of the winding device 1 that can change the orientation of the permanent magnet 30 by remote control when the handle 50 is provided on the reel rubber sleeve 13. FIG.
As shown in FIG. 3, in this embodiment, when the coil car 60 that winds the steel sheet S and inserts and removes the coil from the tension reel 10 is provided in the winding device 1, the saddle 61 (coil cradle) of the coil car 60 is provided. Further, a handler 62 that can be connected to the handle 50 provided on the rotary shaft 31 is provided. Specifically, the front end portion of the handler 62 is formed to engage with the end portion of the handle 50. The handler 62 is controlled to be rotatable by, for example, a motor 63 as power for changing the rotation angle.

Then, by operating the position of the saddle 61 of the coil car 60 in the up / down / left / right and forward / backward directions, the handle 50 and the handler 62 are connected, and the rotation angle of the handler 62 is controlled by the motor 63 provided in the saddle 61. The direction of the magnetic pole of the permanent magnet 30 can be changed by remote control.
As described above, the reel rubber sleeve and the steel sheet winding device according to the present invention can safely and reliably perform the steel sheet winding operation and the coil coiling operation, and can be used for switching according to the expansion of the inner diameter. It is possible to provide a reel rubber sleeve and a steel sheet take-up device that can significantly reduce the work time without requiring work.

10 Tension reel 11 Belt wrapper 12 Mandrel 13 Reel rubber sleeve 13a Segment (intermediate sleeve)
13b Inner cylinder sleeve 13c Outer cylinder sleeve 13d Connection part 13e Housing part 14 Swing arm 14a Swing arm lower end claw 15 Belt 16 Holding guide 20 Deflector roll 30 Permanent magnet 31 Rotating shaft 40 Nonmagnetic material 50 Handle 60 Coil car 61 Saddle 62 Handler S Steel plate M Magnetic field line A _M Magnetic field line generation range

Claims (4)

A reel rubber sleeve that is used by being mounted on a tension reel of a steel sheet winding device that winds a strip-shaped steel sheet in a coil shape, and has a hollow cylindrical shape,
Having a housing made of magnetic material;
In the housing part, a permanent magnet having a rotation axis parallel to the axial direction of the reel rubber sleeve is rotatably installed,
A reel rubber sleeve characterized in that the direction of the magnetic pole of the permanent magnet can be changed on the surface including the radial direction of the reel rubber sleeve by rotating the permanent magnet.   A non-magnetic material is embedded in the outer peripheral surface portion of the reel rubber sleeve on the extension line from the center of the reel rubber sleeve on the surface including the radial direction of the reel rubber sleeve to the position where the permanent magnet is installed. The reel rubber sleeve according to claim 1.   3. The reel according to claim 1, wherein the rotation shaft protrudes from an axial end portion of the reel rubber sleeve, and a handle for rotating the rotation shaft is provided at an end portion of the rotation shaft. Rubber sleeve. A reel steel sleeve comprising the reel rubber sleeve according to claim 3, a steel sheet winding device for winding a strip-shaped steel sheet into a coil shape, comprising a coil car for inserting and removing a coil from a tension reel,
Before Symbol connectable handlers handle provided on the rotary shaft, the winding device of steel plate and a motor for rotating the handlers, characterized in that provided in the coil car.

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