JP4419777B2 - Side guide roller and steel strip winding device - Google Patents

Description

  The present invention includes a side guide roller for correcting a traveling deviation of a steel strip when winding the tail end portion of the steel strip, and the side guide roller, and the winding deviation when winding the tail end portion of the steel strip is provided. The present invention relates to a steel strip winding device that can be prevented.

  In the steel strip production line, when the steel strip is continuously wound, if the steel strip to be wound is under a certain tension, for example, due to the action of the meander adjustment control device, the steel strip is not uneven and is coiled. It will be rolled up. However, the steel strip between the cut portion and the coil portion after being cut by the outgoing shear (hereinafter referred to as “steel strip tail end portion”) has no tension, and the meander adjustment control by the meander adjustment control device is not performed. Stop working. For this reason, the side edge part of the steel-band tail end part wound by coil shape causes what is called winding shift, and may become irregular.

  As a method for preventing such winding slip at the tail end of the steel strip, for example, Japanese Patent Laid-Open No. 53-75153 (Patent Document 1) and Japanese Utility Model Laid-Open No. 02-118613 (Patent Document 2) include a guide. A winding slip prevention technique using a roll or a magnet guide is disclosed. In these methods, a cylindrical pressing roll is positioned on a surface that presses the tail end of the steel strip against the coil (hereinafter referred to as the outer peripheral surface) in a direction perpendicular to the traveling direction of the tail end of the steel strip. It is intended to prevent the winding slippage by pressing the shape pressing roll against the coil.

  However, in the methods of Patent Documents 1 and 2, since the cylindrical pressing roll suppresses the steel strip in a direction perpendicular to the traveling direction, the movement of the steel strip to shift in the plate width direction is suppressed. As a result, for example, when a low-strength steel strip passes due to the material, thickness, etc., the cylindrical pressing roll presses the steel strip, so that the edge of the steel strip is moved in the plate width direction from the side guide roller. Even when the guide force is applied, the steel strip is not guided in the plate width direction, and the coil that has been wound or wound on one edge of the steel strip that is in contact with the side guide roller Scratches may occur on the surface. Further, when the pressing force of the cylindrical pressing roll is weak, the wound coil may be loosened.

In order to solve such a problem, the present applicant, in Japanese Patent Application Laid-Open No. 10-166054 (Patent Document 3), at the winding start contact for winding the steel strip in a coil shape, Use at least one pair of horizontally movable side guide rollers that contact each other and a coil pressing mechanism such as a spherical roller that contacts and presses the upper surface of the steel strip to be wound. Disclosed a technique for preventing winding slip at the tail end of the steel strip.
JP-A-53-75153 Japanese Utility Model Publication No. 02-118613 Japanese Patent Laid-Open No. 10-166054

  The device described in Patent Document 3 does not cause scratches, breakage, or the like at the tail end portion of the steel strip in a tension-free, meanderless adjustment control state after being cut by the exit shear of the steel strip production line. In addition, the steel strip coil is useful as a device that can wind up the steel strip without causing winding slippage or loosening that causes the outer periphery of the steel strip coil to become uneven.

  In fact, the present applicant uses the apparatus described in the above-mentioned Patent Document 3, and winds the steel strip without causing flaws and breakage, particularly with respect to a steel strip having a thickness of about 0.8 mm or more. It was. In addition, although patent document 3 did not mention in particular about the material of a side guide roller, the general steel side guide roller was used from a viewpoint of intensity | strength or durability.

  However, when the plate thickness of the steel strip is less than 0.8 mm, the edge portion of the steel strip to be wound may be broken, or the wound coil surface may be flawed. In recent years, the thickness of steel strips has become increasingly thinner due to requests from customers, and in the conventional winding device using a side guide roller made of steel, an extremely thin plate thickness, for example, about 0.4 mm is used. The problems of bending of the steel strip edge and flaws on the coil surface that occur when winding the steel strip have become increasingly important.

  Therefore, the present invention prevents winding deviation even when winding a steel strip having an extremely thin plate thickness, causes breakage at the edge portion of the steel strip to be wound, or on the surface of the wound coil. An object of the present invention is to provide a side guide roller and a steel strip winding device in which no flaws are generated.

In order to achieve the above object, the present invention has the following features.
[1] A side guide roller for contacting both side edges of a steel strip, characterized in that a mesh-like metal is mounted on the surface of a roller base material constituted by an elastic body.
[2] A side guide roller according to [1], wherein an oil-resistant rubber sponge or urethane foam is used as the elastic body.
[3] A side guide roller in which a mesh-like metal is mounted on the surface of a roller base composed of an oil-resistant rubber sponge or urethane foam , the oil-resistant rubber sponge or urethane foam and the mesh-like metal between, service id guide rollers, characterized in that fitted with rubber plate or urethane plate having oil resistance.
[4] A steel strip winding device including the side guide roller according to any one of [1] to [3],
At least a pair of the side guide rollers is provided so as to be positioned at a winding start contact point between a coil wound around the winding device and a steel strip wound around the coil;
Further, the steel strip winding device is characterized in that the side guide roller is provided so as to be movable in the width direction of the steel strip so as to come into contact with both side edges of the steel strip to be wound.

  According to the present invention, even when a steel strip having an extremely thin plate thickness is wound, the winding is prevented from being displaced, and the edge of the steel strip to be wound is broken, or the coil surface is wound. Provided are a side guide roller and a steel strip winding device in which no flaws are generated.

  Hereinafter, an example of the best mode for carrying out the present invention will be described.

  FIG. 1 is a schematic view showing an example of the configuration of a steel strip winding device according to the present invention.

  The steel strip 1 that is continuously passed is guided by a deflector roll 4 after the tail end portion is cut by a shearing equipment 2 provided on the outlet side, and is wound up in a tensionless and meandering-controlled state. Is wound into a coil shape.

  The winding device 3 includes at least one pair of side guide rollers 6a and 6b that are in contact with both side edges 1a and 1b of the steel strip 1, and the coil 5 that is wound around the winding device 3; It is provided so as to be positioned at a winding start contact point with the steel strip 1 wound around the coil 5. In addition, a plurality of spherical rollers 7 are wound around the winding device 3 as pressing means for contacting the upper surface of the steel strip 1 to be wound and pressing the wound steel strip 1 against the coil 5 side. The coil 5 and the steel strip 1 wound around the coil 5 may be provided at a winding start contact point.

  2 and 3 are views showing an example of the configuration of the side guide rollers 6a and 6b and the spherical roller 7. FIG. 2 is a front view seen from the traveling direction of the steel strip 1, and FIG. 3 is a side view. .

  2 and 3, each of the side guide rollers 6a and 6b contacts both side edges 1a and 1b of the steel strip 1 to be wound and both side edges of the coil 5 that has already been wound. As possible, the drive mechanism is configured such that, for example, the fluid pressure cylinders 8a and 8b can independently move horizontally in the width direction of the steel strip.

  The side guide rollers 6a and 6b and the spherical roller 7 for giving a degree of freedom in the plate width direction at the time of guiding the steel strip are provided on the support 11 to which these are attached in the direction of travel of the steel strip 1. In contrast, two or more rows may be provided at predetermined intervals.

  The side guide rollers 6 a and 6 b, the side guide roller driving fluid pressure cylinders 8 a and 8 b, and the spherical roller 7 are attached to a support 11. The support body 11 is connected to a support piece 13 to which a rod of a fluid pressure cylinder 12 is attached so as to be able to swing in the traveling direction of the steel strip 1 by a joint 10. From the outer peripheral surface, the coil 5 and the steel strip 1 can be moved toward the center of the winding starting point of the coil 5 and the steel strip 1. In addition, the support 11 is configured to be movable from the outer peripheral surface of the coil 5 toward the center of the coil 5 and the steel strip 1 by the fluid pressure cylinder 12 toward the center of winding. Even if the coil diameter of the steel strip changes, the steel strip 1 can be wound up without causing winding slippage or loosening.

  The pressing means that comes into contact with the upper surface of the steel strip 1 is not limited to the spherical roller 7, and a rotary roller that can move in the plate width direction of the steel strip may be used. Even if it exists, a tire-like pressing roll etc. may be sufficient.

  Next, a steel strip winding method by the steel strip winding device 3 having the above-described configuration will be described.

  The tension-free steel strip 1 whose tail end is cut by the shear equipment 2 is wound into a coil by the winding device 3. In this case, the spherical roller 7 is wound on the support 11 to which the side guide rollers 6a and 6b and the spherical roller 7 are attached, which is located at the winding start contact point where the steel strip 1 is wound in a coil shape. It is moved by a fluid pressure cylinder 12 so as to come into contact with the upper surface of the steel strip 1 and press the wound steel strip 1 against the coil 5 side.

  Next, the fluid pressure cylinders 8a and 8b for driving the side guide rollers are operated, and the both side edges 1a and 1b of the steel strip 1 wound around the coil 5 are set with reference to both side edges of the coil 5 already wound. The side guide rollers 6 a and 6 b are pressed against both side edges of the coil 5 so as to coincide with both side edges of the coil 5. As described above, the steel strip 1 wound by the pressing of the side guide rollers 6 a and 6 b with reference to the both side edges of the coil 5 that has already been wound up has both side edges 1 a and 1 b of the coil 5. It is made to correspond to a side edge and is wound in a coil shape without causing a winding slip.

  At this time, since the spherical roller 7 as a pressing means is in contact with the upper surface of the steel strip 1 wound around the coil 5 and pressed against the coil 5 side, the winding of the steel strip 1 and the coil 5 is performed. Positioning of the starting contact is performed, and the occurrence of winding loosening that causes the steel strip 1 to sag from the wound coil 5 is prevented. Further, since the spherical roller 7 is used as the pressing means, even when the edge portion of the steel strip 1 is guided by the side guide rollers 6a and 6b, the movement in the plate width direction is not restricted, and the steel It is possible to guide freely without damaging the edge portion of the belt 1.

  Further, since the steel strip 1 is guided by the side guide rollers 6a and 6b at the winding start contact point between the coil 5 already wound up and the steel strip 1 wound around the coil 5, the steel strip 1 is guided between the steel strips wound up. Since the steel strip 1 can be wound up without being affected by friction, the steel strip 1 can be wound up without being broken or damaged at the edge of the steel strip 1.

  The side guide rollers 6a and 6b are installed at the winding start contact point between the coil 5 that has already been wound and the steel strip 1 wound around the coil 5, and the installation position is determined from the winding start contact point. The effect of the present invention can be achieved even when the steel strip slightly deviates back and forth with respect to the traveling direction of the steel strip.

  In the apparatus configuration as described above, the side guide roller according to the present invention has a configuration in which a mesh metal for giving strength is attached to the surface of a roller base material having elasticity as a cover. .

  FIG. 4 is a cross-sectional view showing an example of the configuration of the side guide roller according to the present invention. As shown in FIG. 4, the side guide roller 6 a (6 b) according to the present invention has an elastic body 62 as a base material formed in a cylindrical shape around a roller shaft 61, and further, an elastic material formed in the cylindrical shape. A metal formed in a mesh shape, that is, a mesh metal 63 is mounted on the surface of the body 62.

  Thus, by using an elastic body for the base material of the side guide roller, even when winding a steel strip with an extremely thin thickness, the elastic body is deformed to some extent with respect to the deviation of the steel strip, so that it is wound up. When guiding the steel strip, it is possible to correct the lateral displacement of the steel strip without causing breakage at the edge portion or flaws on the surface of the coil wound up.

  Here, the elastic body 62 has an elastic force (elastic restoring force) that is equal to or greater than a force that corrects the lateral displacement of the steel strip when the lateral displacement occurs in the steel strip and the edge of the steel strip bites into the side guide roller. ) To correct the lateral displacement of the steel strip. Further, the metal 63 formed in the mesh shape prevents direct contact between the edge portion of the steel strip and the elastic body 62, and prevents the elastic body 62 from being damaged or worn by the edge portion of the steel strip. Here, since the metal 63 is formed in a mesh shape and deforms in accordance with the deformation of the elastic body 62, the properties of the elastic body 62 as an elastic body are not impaired.

  Here, as the elastic body 62, when the edge of the steel strip has bite into the side guide roller, an elastic body that generates an elastic force (elastic restoring force) that is equal to or greater than the force that corrects the lateral displacement of the steel strip, for example, It is preferable to use rubber sponge (foam rubber), urethane foam or the like. In addition, the surface of the steel strip may be coated with rust preventive oil. In this case, since rust preventive oil adheres to the side guide roller, it is desirable to use a rubber sponge (foamed rubber), urethane foam or the like having oil resistance as the roller base material.

  Here, as the rubber sponge having oil resistance, for example, foamed chloroprene rubber, nitrile rubber or the like is preferably used, and as the urethane foam having oil resistance, polyester urethane foam or the like is preferably used. .

  Further, when a rubber sponge or urethane foam is used as the elastic body 62, the rubber sponge or urethane foam easily absorbs rust-preventing oil, so that the surface thereof, that is, between the rubber sponge or urethane foam and the mesh metal 63 is used. It is more preferable to attach a rubber plate or urethane plate 64 having oil resistance.

  On the other hand, as the mesh metal 63, a metal having a higher strength than the steel strip to be wound, for example, SUS304 or the like configured in a mesh shape can be used.

  FIG. 5 is a diagram showing an example of a metal mesh shape configured in the mesh shape. FIG. 5A shows a mesh of metal wires, and FIG. 5B shows a combination of metal rings in all directions. The mesh shape is not limited to the illustrated shape, and the side guide roller as a whole can be directly connected between the edge portion of the steel strip and the elastic body 62 without damaging the elastic force of the elastic body 62 as a base material. If it is a shape which can prevent the contact of this, the effect of this invention can be show | played.

  In the above embodiment, it described about the steel strip winding apparatus provided with the side guide roller of the structure mentioned above. However, the side guide rollers are used not only as part of the structure of the steel strip winding device, but also on both side edges of the steel strip 1 between the shear equipment 2 and the steel strip winding device 3 shown in FIG. By providing in a part, it can also be used as a side guide roller for preventing winding slip of a steel strip tail end part.

  In this case, at least one pair of the side guide rollers is provided between the shear equipment 2 and the steel strip winding device 3, and in particular, at least one pair is provided between the deflector roll 4 and the steel strip winding device 3. preferable.

  As a result, even when winding a steel strip with an extremely thin plate thickness, the winding is prevented from slipping, the edge of the steel strip to be wound is broken, or the wound coil surface is scratched. Can be prevented.

Using the steel strip winding device according to the present invention shown in FIG. 1, whether or not the edge portion is folded and the surface of the coil is flawed when a steel strip having a thickness of 0.4 to 0.8 mm is wound up. The results of visual inspection are shown below. Here, the winding of the steel strip was performed for 16 coils. Here, in the structure shown in FIG. 4, the side guide roller used in the steel strip winding device according to the present invention has a chloroprene rubber hard foam rubber (25% compression load: 1.1 kgf / cm ²⁾ as the elastic body 62. ), A chloroprene rubber plate as the rubber plate 64, SUS304 (element diameter 0.8 mm) as the metal 63, and a mesh shape having the shape shown in FIG. 5A.

  As a result, the edge portion was not broken and the surface of the coil was not damaged, and the occurrence rate was 0%.

  On the other hand, in the conventional winding device using the steel side guide roller, similarly, as a result of winding 16 coils of a steel strip having a plate thickness of 0.4 to 0.8 mm, bending of the edge portion or coil The incidence of surface flaws was about 60%, confirming the effect of the present invention.

It is the schematic which showed an example of the structure of the steel strip winding apparatus which concerns on this invention. It is a figure which shows an example of a structure of the side guide roller and spherical roller concerning this invention, and is the front view seen from the advancing direction of the steel strip. It is a figure which shows an example of a structure of the side guide roller and spherical roller concerning this invention, and is the side view seen from the advancing direction of the steel strip. It is sectional drawing which showed an example of the structure of the side guide roller concerning this invention. It is the figure which showed an example of the mesh shape of the metal comprised in the mesh shape concerning this invention, (a) is what made the metal wire mesh, (b) is what combined the metal ring on all sides It is.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steel strip 2 Shear equipment 3 Winding device 4 Deflector roll 5 Coil 6 Side guide roller 61 Roller shaft 62 Elastic body 63 Mesh metal 64 Rubber plate or urethane plate 7 Spherical roller 8 Fluid pressure cylinder 10 for driving side guide roller 10 Joint 11 Support body 12 Fluid pressure cylinder 13 Support piece

Claims (4)

A side guide roller for contacting both side edges of a steel strip, characterized in that a mesh-like metal is mounted on the surface of a roller base material constituted by an elastic body.   The side guide roller according to claim 1, wherein a rubber sponge or urethane foam having oil resistance is used as the elastic body. A side guide roller in which a mesh-like metal is mounted on the surface of a roller base composed of an oil-resistant rubber sponge or urethane foam, between the oil-resistant rubber sponge or urethane foam and the mesh-like metal. a, Sa id guide rollers, characterized in that fitted with rubber plate or urethane plate having oil resistance. A steel strip winding device comprising the side guide roller according to any one of claims 1 to 3,
At least a pair of the side guide rollers is provided so as to be positioned at a winding start contact point between a coil wound around the winding device and a steel strip wound around the coil;
Further, the steel strip winding device is characterized in that the side guide roller is provided so as to be movable in the width direction of the steel strip so as to come into contact with both side edges of the steel strip to be wound.

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