JPH07285643A - Maintenance of line roll - Google Patents

Abstract

PURPOSE:To remove a surface foreign substance of all rolls coming in contact with a through plate by passing a continuous plate for maintenance forming a low hardness and tacky material layer on the surface of the continuous plate for the through plate through a roll line of roll processing equipment and transferring and attaching the foreign substance to the tacky material layer. CONSTITUTION:Taking up of a steel plate 10 for maintenance rolled up on a pay-off reel 1 to a tension reel 9 by a through plate in the arrow direction is carried out by periodically passing the steel plate 10 through a continuous processing device. A foreign substance attached on each of a series of roll surfaces of the pay-off reel 1, a pinch roll 2, leveller 4, a table roll 6, an oiler 7 and a deflector 8 is transferred and attached to a low hardness tacky material 14 (for example, urethane rubber) formed on the front and back surfaces of the steel plate 10 for maintenance. Consequently, it is possible to clean the surface of each of the rolls.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for caring for a line roll in a continuous cold rolling mill or a continuous plate straightening device, which removes foreign matter on the surface of the roll which comes into contact with the plate of a steel plate line.

[0002]

2. Description of the Related Art In recent years, there have been problems of surface treatment, poor appearance due to adhesion of foreign matter on the surface of cold-rolled steel sheet, and biting of foreign matter during pressing. The adhered foreign matter on the plate surface is often caused by the carry-in of the material itself, the adherence of dust inside the factory, and the adherence of such foreign matter to the roll surface.

As a measure for removing / cleaning foreign matter from the rolls, is it usually necessary to install roll hed doctor blades, brushes, etc., which are limited in consideration of the scratching property, and install them by vacuum suction or other measures? , Measures are being taken to implement manual maintenance.

A problem in implementing the removal measure by implementing it is a huge investment in a line having a large number of rolls, for example, a complete continuous rolling mill having a looper or the like on the entire surface. Therefore, it is limited to the establishment of foreign matter adhesion, and the cleaning effect is not sufficient.

In addition, manual handling is not only dangerous in some places, but also causes a line break for maintenance, and there are some places where maintenance is not possible and cannot be removed.

[0006] On the other hand, the existence of a sticky substance is known as a means for removing foreign substances, but when passing through a thin steel line, the steel sheet can be stretched without withstanding tension.
There is a problem such that the rigidity of the plate is insufficient at intervals such as passing through the plate. Therefore, when this adhesive substance is used as a strip in a line, it is necessary to set special operating conditions or install a special strip facility.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a line roll care method which can easily remove surface foreign matter of all rolls that come into contact with a threaded plate without providing any special equipment. .

[0008]

SUMMARY OF THE INVENTION According to the present invention, a maintenance continuous plate having a layer of a material having a low hardness and an adhesive force formed on the surface of the continuous plate for passing a plate is passed through a roll line of a roll processing apparatus. This is a method of caring for a line roll in which a material having adhesive force is continuously contacted with a roll of a roll processing device to transfer foreign matter adhering to the roll surface to a layer of material having adhesive force. .

In order to form a layer of a material having an adhesive force, a material having an adhesive force such as low hardness urethane rubber or silicon rubber is attached to the surface of the plate for passing through, or an adhesive substance is used. It is also possible to pass a plate while applying a viscous liquid to the surface of the plate for plate passing in consideration of the residual line due to drying.

Further, it is also possible that the material having adhesive strength is formed into a wide band shape, which is wound in a coil shape and superposed on the continuous plate for plate passing, and the roll line of the continuous processing machine is regularly passed. it can.

However, when the present invention is applied to a continuous rolling mill, rolling is not required in the rolling mill section, and rolling of the work rolls with the work rolls released is required.

[0012]

The action of passing the material having adhesive force for maintenance through the roll line is the same as in the normal rolling operation, and the foreign substances adhered to the entire surface of the roll continuously arranged by the adhesive substance by this threading plate. To be removed.

[0013]

EXAMPLE An example in which the present invention is applied to care for a roll of a continuous processing apparatus for correcting the surface condition of the cold rolled steel sheet shown in FIG. 1 will be described.

In the figure, the continuous processing device comprises a payoff reel 1 for rewinding a steel plate coil, a pinch roll 2, an upcut shear 3, a leveler 4, a side trimmer 5, a table roll 6, and an oiler 7. The deflector 8 and the tension reel 9 are arranged in this order. Then, the normal operation of the continuous processing apparatus causes the maintenance steel plate 10 to pass through periodically, so that the maintenance reel steel plate 10 wound around the payoff reel 1 is passed through the tension reel 9 in the direction of the arrow. Payoff reel 1, pinch roll 2, leveler 4, table roll 6, oiler 7, deflector 8
The foreign matter attached to the surface of each roll is transferred to the low hardness urethane rubber formed on the front and back surfaces of the steel plate 10 for maintenance, and the surface of each roll is cleaned. Furthermore, in the continuous care of this roll surface,
By pressing the snubber rolls 11 and 12 arranged before and after the pay-off reel 1 and the tension reel 9, respectively, the snubber rolls used for normal ching and tail end processing after splitting can be maintained.

FIG. 2 shows a sectional structure of the steel plate 10 for maintenance.

In the figure, the steel plate 10 for maintenance has adhesiveness itself and low hardness on both sides of the base steel plate 13 having the same thickness as the processed steel plate that is passed through in the normal process. The strip-shaped material of the adhesive material 14 such as urethane rubber, silicone rubber, etc. is adhered, and its width may be arbitrarily set irrespective of the width of the base steel plate 13, and its thickness is The thickness may be adjusted so that it can pass through each roll interval.

As a result, the steel plate 10 for maintenance can withstand the tension level under the normal threading condition by using the base steel plate 13 which is used for the normal threading process, and is partially stripped. It can withstand even the passing of steel with the rigidity of, and because of the passing of the maintenance steel sheet, no special sheeting equipment or electrical control is required.

The foreign matter-attached coil that has passed through the plate can be reused by regenerating it in an electric cleaning line.

Since the adhesive substance of the above-mentioned care steel plate may extremely reduce the adhesion action due to the adhesion of oil, water, etc. on the roll surface, when passing a sheet for maintenance, the line length should be at least twice the total length of line maintenance. A length of thread is desirable.

[0020]

The present invention has the following effects.

(1) It is possible to easily remove the surface foreign matter of all the rolls that come into contact with the strips in the continuous roll processing machine without providing special equipment.

(2) If there is equipment such as a scrubber on the outlet side of the cleaning line, it is possible to perform regeneration on the outlet side by making a minor modification to the conventional equipment.

(3) One coil can be used for a plurality of lines corresponding to the plate width of each line.

[Brief description of drawings]

FIG. 1 shows an outline of a rolled plate straightening roll device to which the present invention is applied.

FIG. 2 shows an example of a cross-sectional structure of a maintenance plate.

[Explanation of symbols]

1 Payoff reel 2 Pinch roll 3 Up-cut shear 4 Leveler 5 Side trimmer 6 Table roll 7 Euler 8 Deflector 9 Tension reel 10 Steel plate for maintenance 11, 12 Spanner roll 13 Base steel plate 14 Adhesive material

Claims (1)

[Claims] 1. A continuous plate for maintenance in which a layer of a material having a low hardness and having an adhesive force is formed on the surface of the plate for passing a plate is passed through a line roll of a roll processing device to retain an adhesive force. A method of caring for a line roll in which a material and a roll of a roll processing apparatus are continuously brought into contact with each other to transfer foreign matter adhering to the surface of the roll to a layer of a material having an adhesive force.