JPS6363519A - Hot run table device - Google Patents

Abstract

PURPOSE:To improve the product yield and quality by making at least one part of table rollers capable of tilting or a tapered shape and installing guides movable in the width direction between the table rollers. CONSTITUTION:At least one part rollers 8 of a table roller group 7 between a finishing rolling mill 1 and a pinch roll device 2 are made to be capable of tilting in the width direction of a rolled stock S through a hydraulic cylinder 9. Vertical rollers 13 supported by a shaft box 1 and movable back and forth in the width direction of the stock S by a motor 16 and a worm 17, etc. are installed between the every rollers 8. By that mechanism, the stock S is prevented from meandering by a tilting motion of the rollers 8 and generation of projections on a wound coil is prevented. Therefore, the product yield and quality are improved because damage to a coil when the coil is fallen sideways is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a hot run table device capable of correcting the meandering amount of a rolled material.

[Prior Art] As shown in FIG. 4, a rolled material S rolled in a finishing mill 1 is conveyed over a group of table rollers 7 of a hot run, pinched by a pinch roll device 2, and sent to a winder 3. The coil is then wound by the mandrel 4 of the winder 3, but the wound coil may have a telescopic protrusion 5 as shown in FIG.

There are various factors for telescoping, but in particular, telescoping on the table roller group 7 of a hot run with a length of 100 m or more
Since the tip of the rolled material S is conveyed over the discontinuous surface between the table rollers 8 at a high speed of 00 m/min and without tension, the tip of the rolled material S may float or dance on the table roller 8, etc. In addition to these factors, material conditions such as the shape of the tip of the rolled material may cause it to meander on the table roller group of the hot run. Furthermore, since there is no active guide in the width direction on the long table roller group 7, its meandering cannot be restricted. Since the meandering rolled material S is wound up without being completely corrected, a telescopic protrusion 5 shown in FIG. 5 is formed.

In the process after the coil is removed from the mandrel, the end face of such a coil with uneven end face positions may be bent or crushed when it is laid down, or the protruding portion may be hit during conveyance on a conveyor, and the end face of the rolled material may be This can cause damage such as breakage, and these damaged parts not only reduce the yield of the product, but also, if the bending is severe, it becomes impossible to return the work in the subsequent process, requiring a large amount of work such as manually bending it back. This required a lot of labor and was a bottleneck in efforts to save labor in coil refining work.

Therefore, in order to solve the above-mentioned problems, as shown in FIGS. 4 and 5, conventionally a side guide device 6 is provided on the entry side of the pinch roll device 2, and the side guide device 6 allows the rolling material to be rolled. The center of the width direction is being corrected.

In Fig. 5, 31 is a drive device, 32 is a worm shaft, 33 is a worm wheel, 34 is a nut, 35 is a screw shaft, 36 is a short stroke cylinder, 37 is a side guide body, and the rolled material is transferred to the pinch roll device 2. Until it reaches the point, it is just riding on the table roller group 7 and there is no tension. If an attempt is made to center this with the side guide main body 37, the rolled material will stop at that part, resulting in a cobble-like shape and not being able to reach the winder 3. Therefore, the side guide main body 37 waits at the plate width + α (approximately 100 m + n) until it bites into the pinch roll device 2, and after reaching it, the short stroke cylinder 36 is activated to move the side guide main body 37 to the plate width + β (β width). 4 to 6 mm) to center the rolled material.

[Problems to be Solved by the Invention] However, in the above-mentioned apparatus, since the side guide body 37 passes through the sheet with the side guide main body 37 open by α mm, the passing position of the part-rolled material may be uneven, as shown in FIG. As shown, the rolled material conveyor 1 is pinched by the pinch rolls at a position shifted by AY with respect to the center 12 of the equipment, and is instantly wrapped around the mandrel 4. Furthermore, since the side guide device 6 only has the function of aligning the subsequent material to the center of the equipment, rather than aligning the subsequent material to the position, the initial winding on the mandrel is based on the position, and the winding after centering is based on the deviation between the positions. becomes the telescopic protrusion 5 shown in FIG. Since the time required for centering is about 1 second, the amount of centering reaches several turns of 1O.

The present invention has been made in view of the above-mentioned circumstances, and is intended to prevent the formation of telescopic protrusions even when rolled material is wound up, and to improve product yield and product quality.

[Means for Solving the Problems] The present invention provides a table in which at least a part of a group of table rollers for conveying rolled material installed between a rolling mill and a pinch roll device can be tilted in the width direction of the rolled material. A roller or a tapered table roller is used, and a guide movable in the width direction of the rolled material is provided on the downwardly inclined side of the tiltable table roller or on the small diameter side of the tapered table roller.

[Function] When meandering occurs, the rolled material is forcibly moved in one direction by a tiltable table roller or a tapered table roller so that the meandering is eliminated in the width direction of the rolled material,
Its width end position is regulated by vertical rollers. Therefore,
By forcibly restricting the strip in one direction, meandering of the strip on the table roller group can be suppressed, and telescopic protrusions are less likely to occur in the wound coil.

[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

1 and 2 show an embodiment of the present invention, in which at least some table rollers 8 out of a large number of table roller groups 7 disposed between a finishing mill 1 and a pinch roll device 2 are shown. are each independently rolled material S by the fluid pressure cylinder 9.
It can be tilted in the width direction about the pin 10. Furthermore, a position sensor 19, an angle sensor 20, an arithmetic control device 22, and a control valve 2 are provided to arbitrarily control the amount of tilting.
3 is provided. Furthermore, each table slotter 8 can be driven by an electric motor 11.

A vertical roller 13 rotatably supported by an axle box 12 is disposed between each table roller 8 at one end in the axial direction of the table roller 8 .
A screw shaft 14 extending in the axial direction of the screw shaft 14 is connected to the screw shaft 14.
The threaded part of is screwed into the threaded part of the worm wheel 15,
A worm 17 that can be driven by an electric motor 16 meshes with the worm wheel 15, and by rotating the worm wheel 15 with the worm 17, the vertical roller 13 is moved forward and backward in the width direction of the rolled material S via the screw shaft 14. The width direction position of the rolled material S on the table roller 8 can be regulated. In addition, by combining this equipment with the width edge detector 21 installed on the output side of the pinch roll device 2, the tachometer 18 of the vertical roller motor, and the arithmetic and control device 22 for these, the tip of the strip can be wrapped around the mandrel. vertical roller 1 so that the subsequent strip can follow the position
It is also possible to control the width direction position of 3.

With this configuration, the table roller 8 is tilted to prevent the rolled material S from meandering, and even when the rolled material S is wound, telescopic protrusions are less likely to occur in the coil.

FIG. 3 shows another embodiment of the present invention. Whereas in the previous embodiment, the table roller 8 was tilted, in this embodiment, the table roller 8 is a tapered roller, and the large diameter portion of the table roller 8 is tilted. Due to the difference in circumferential speed between the
is moved toward the vertical roller 13 side. Even with such a configuration, meandering can be suppressed by regulating the widthwise position of the rolled material S on the table roller 8 with the vertical roller 13 so that the widthwise position of the rolled material S is at a predetermined position. Telescopic protrusions are less likely to occur on the coil.

Further, in this embodiment, a vertical roller is used on one side of the table roller, but a disc roller, a plate guide, or the like may also be used.

[Effects of the Invention] 8. According to the hot run table device of the present invention, the rolled material is moved in the width direction by tilting the table rollers or by the difference in circumferential speed of the table rollers, and the width end position is regulated by the guide. As a result, the width end position of the rolled material can be corrected to the required position, thereby preventing telescopic protrusions from occurring in the coil formed by winding the rolled material. Even in such a case, the coil will not be bent, and various excellent effects can be achieved, such as improving product yield and product quality.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of the hot run table device of the present invention, Fig. 2 is a view taken in the direction of arrow ◯ in Fig. 1, and Fig. 3 is an explanatory diagram of another embodiment of the hot run table device of the present invention. , FIG. 4 and FIG. 5 are general explanatory views of conventional rolling equipment, and FIG. 6 is an explanatory view of a telescopic protrusion formed in a coil. In the figure, 1 is a finishing rolling mill, 2 is a pinch roll device, = 9-3 is a winding machine, 7 is a table roller group, 8 is a table roller, 9 is a fluid pressure cylinder, 13 is a vertical roller, 14 is a screw shaft, 15 is a worm wheel, 1B is an electric motor, 17 is a worm, and 21 is a width end position detector.

Claims (1)

[Claims] (1) At least a part of the table roller group for conveying the rolled material installed between the rolling mill and the pinch roll device is a table roller that can be tilted in the width direction of the rolled material or a tapered table roller, and 1. A hot run table device characterized in that a guide movable in the width direction of a rolled material is provided on a downwardly inclined side of a table roller or on a small diameter side of a tapered table roller.