KR19980027843A - Steel roll defect removal device - Google Patents

Abstract

The present invention relates to a steel roll defect removal apparatus that can automatically improve the quality of the film, improve productivity and prevent safety accidents by removing the roll portion and foreign matter generated in the steel roll used in the cold rolled strip production process.

In addition, the present invention is a base (60a, 60b) that is installed vertically fixed near the both ends of the cold roll process steel roll 10, and is rotatably fixed while connecting the two bases in the axial direction on the outer periphery The screw member 38, which is provided with a female screw member 36, which is movable in the direction of the screw member, and is spaced apart from the screw member and inserted into the guide grooves 61a and 61b respectively formed in the base, and installed along the guide groove. It is connected to the guide rod 37 which is movable and is provided with a guide hole 35 that can move in the circumferential direction, and the extended ends of the guide shafts 33a and 33b connecting the female screw member and the guide hole. Air cylinder 40 for moving the main body and the defect removal main body (3) attached to the main body is moved along the width direction of the steel roll in accordance with the rotation of the screw member, the grinding sandpaper 31 is attached (3) 0), and the rod end is connected to the horizontal shaft (34) fixed to the induction shaft to provide a steel roll coupling removal device characterized in that it comprises a means for suction and discharge the foreign substances generated.

Description

Steel roll defect removal device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel roll defect elimination device for automatically removing a portion of a roll and a foreign matter generated in a work roll made of steel, which is used in a cold rolled strip production process. The present invention relates to a steel roll defect removal device capable of achieving efficient work roll maintenance by scraping a portion by a grinding method and suctioning and removing the generated foreign matter by using a suction port to facilitate collection processing.

The general strip is cold rolled again to form a thin thickness, and then moved to a process of cutting or continuously plating to meet the order size of the demand. Such strips pass through a number of work rolls (steel rolls) made of steel in a cold rolling process. However, when the stamping occurs on the surface of the work roll, the welding slag residues generated during the maintenance work are constricted on the roll surface, and various foreign matters are attached to the work roll surface, and a defect occurs. In the passing strip, a mark is formed by a stamping part, a remaining slag narrowing part after the welding operation, and a foreign matter, or a scratch is formed, thereby degrading the quality of the finished product.

In order to solve such a problem, conventionally, as shown in FIG. 1, a manual type is applied to remove the marks generated by the surface of the work roll 10, the remaining slag welded at the facility maintenance and water purification, and various foreign matters during the operation. Grinding machine 20 was used. The manual grinding machine 20 for removing the defects of the steel roll shown in FIG. 1 checks the defects generated on the surface of the steel 10 according to the human visual inspection by the manual operation in the entire width direction of the work roll 10, and operates the normal. After adjusting the line speed (stop) to change to the stop (stop) or low-speed operation operation by using the manual grinding machine 20 to move the worker to the point where the defect occurs by grinding to remove the defective portion. However, in the grinding method using the conventional manual grinding machine 20, the roll peeling generated on the surface of the work roll 10 and the various foreign substances generated on the surface of the work roll 10 generated during the narrowing of the slag after welding and the work. It is difficult to check and take corrective action of the defects, and inefficient work such as causing a large safety accident when removing it with the grinding machine 20 occurs, resulting in quality defects due to the low speed operation and stop of the line. It is a problem that causes a decrease in productivity.

Accordingly, the present invention is to solve the conventional problems as described above, the stamping and welding slag formed on the surface of the steel roll, various foreign matters automatically removed in an easy manner, the residue removed from the steel roll surface immediately By collecting and discharging by using the suction port, the steel roll surface cleaning work can be efficiently achieved, and the quality of the strip can be maintained well, and the steel roll defect elimination device can be improved to improve productivity and prevent accidents. Has its purpose.

1 is a perspective view for explaining defect removal of the steel roll by hand in accordance with the prior art.

Figure 2 is a perspective view of the steel roll debonding apparatus according to an embodiment of the present invention.

3 is a perspective view of the state of use of the device according to FIG. 2;

4 is a cross-sectional view for explaining that the defect eliminating body is moved by the operation of the air cylinder in the apparatus according to FIG.

* Description of Signs of Main Parts of Drawings *

1: steel roll defect removal apparatus according to the invention 10: steel roll

20: manual grinding machine 30: main body

31: grinding sandpaper 32a, b: clip-type clamp

33a, b: guide side 34: horizontal axis

35 guide 36: female thread member

37: guide rod 38: screw member

40: air cylinder 41a, b: support guide

42a, b: guide bar 43: air supply piping

44 pressure gauge 45 control valve

50: suction port 51: piping

52: Java Lahose 60a, b: base

61a, b: guide groove 70: electric motor

71: chain 72: sprocket

In order to achieve the above object, the present invention is installed vertically fixed near the both ends of the cold rolled steel roll for the cold rolling process and is rotatably fixed while connecting the base and the two bases and move in the axial direction on the outer circumference The screw member is provided with a female thread member that can be installed, and parallel to the screw member, the guide is inserted into the guide groove formed in the base and can be moved along the guide groove and movable in the axial direction on the outer periphery. A defect removal main body which is connected to an extended end of the guide rod which is installed and an induction shaft connecting the female screw member and the guide port and moves along the width direction of the steel roll in accordance with the rotation of the screw member; A rod end is connected to a horizontal shaft fixed to the induction shaft to move the body up and down. Provides a steel roll defect removal device, characterized in that made in a means for sucking and discharging the cylinder, the foreign matter is generated is provided connected to said main body.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

In the drawings, Figure 2 is a perspective view of a steel roll defect removal apparatus in one embodiment of the present invention, Figure 3 is a perspective view of the use state of the device according to Figure 2, Figure 4 is a defect removal body in the device according to Figure 2 Is a cross-sectional view for moving up and down by the operation of the air cylinder.

Referring to FIGS. 2 and 3, the steel roll defect elimination device 1 is installed at a position vertically near the steel roll fixing bearings 11a and 11b at positions beyond both ends of the steel roll 10. 60b). Screw members 38 are rotatably fixed to the bases 60a and 60b while connecting the two bases, one end of which protrudes from the outer surface of one base 60a. The sprocket 72a is mounted on the protruding and extending portion of the screw member 38, and the electric motor 70 is fixedly installed by the electric motor fixing base 73 at a predetermined position spaced apart from the sprocket 72a. .

And the sprocket 72b attached to the rotating shaft of the traditional motor 70 is connected to the sprocket 72a by the chain 71. As shown in FIG.

In addition, a female screw member 36 is screwed on the outer circumference of the screw member 38, which can move left and right as the screw member 38 rotates.

On the other hand, in the position spaced apart from the screw member 68, the guide rod 37 is attached to the base 60a, 60b so as to be movable. Here, guide bases (37a, 61b) are formed in each of the base (60a, 60b) at the connection with the guide bar 37 so as to enable the shangdong of the guide bar (37). In addition, the cylindrical guide port 35 is provided on the outer circumference of the guide bar 37 in a horizontal position in line with the female screw member 38 to move left and right.

And, in the upper position of the steel roll 10 has a lower shape corresponding to the surface shape of the steel roll 10, the grinding sand 31 is attached to the lower surface by the clip-shaped clamps (32a, 32b) to remove the defect The main body 30 is located. The defect elimination main body 30 is connected to the guide hole 35 and the female screw member 36 by derivatives 33a and 33b. In addition, the horizontal axis 34 is fixed to the upper portion of the guide shafts 33a and 33b, and the air cylinder 40 is vertically fixed to the upper portion of the horizontal axis 34 so that the rodo ends of the air cylinders 40 are horizontal axis ( It is fixed to the upper surface of 34). The air cylinder 40 is fixed by support guides 41a and 41b mounted on the outer peripheries of the guide bars 42a and 42b fixed to the fixed bases 60a and 60b, respectively.

In addition, in order to smoothly operate the air cylinder 40, the air supply pipe 43 connected to the air cylinder 40 is equipped with a pressure gauge 44 and an air control valve 45.

On the other hand, the lower side of the defect elimination body 30 is connected to the square suction port 50 is installed in the rear of the square suction port 50, the pipe 51 is installed.

In addition, a bellows hose 52 is connected to the pipe 51 to enable left and right movement of the rectangular suction opening 50 according to left and right movement of the main body 30.

Referring to the operation of the steel roll debonding device (1) having the above configuration as follows.

In order to remove the slag constriction and various foreign matters generated after the welding and welding on the surface of the steel 10, when the electric motor 70 is driven, the screw member 38 is moved through the sprocket 72b and the chain 71. It rotates, and accordingly the female screw member 36 and the guide hole 35 to move the main body 30 left and right while moving left and right in the longitudinal direction. In this case, the worker stops the operation of the electric motor 70 when the main body 30 is located at the point where the work roll 10 is stamped, the welding slag portion, and various foreign matters are formed, and as shown in FIG. 4. The main body 30 is moved downward from the A position to the B position by the air cylinder 40 installed on the upper part 33a, b so as to be in close contact with the surface of the steel 10.

Therefore, the main body 30 is moved forward and backward on the guide rod 37 and the screw member 38, and the front end portion of the grinding sandpaper 31 attached to the main body 30 comes into contact with the surface of the steel roll 10. Steel roll (10) to remove the stamping, welding slag and various foreign matter attached to the surface. At the same time, the foreign material generated at this time is collected at the lower portion of the main body 30 and the grinding sandpaper 31 at the rectangular suction port 50 and discharged by the pipe 51 and the bellows hose 52.

Therefore, since the foreign matters generated are removed from the twisted sandpaper 31, various foreign matters, roll peelings, and welding slag narrowing portions of the steel roll 10 are efficiently performed.

In the above, the present invention has been described and illustrated on the basis of a preferred embodiment thereof, it will be apparent to those skilled in the art that various changes and modifications to the embodiment can be made without departing from the gist of the present invention.

As described above, according to the steel roll defect elimination apparatus according to the present invention, it is possible to achieve effective removal of the stamping, welding residual slag and various foreign matters from the surface of the steel roll, as well as complete manual grinding work. By preventing low speed operation and line stoppage, the effect of improving quality, improving productivity and preventing safety accidents is obtained.

Claims (1)

Bases 60a and 60b fixedly installed near both end portions of the steel roll 10 for cold rolling, and A screw member 38 which is rotatably fixed while connecting the two bases and is provided with a female screw member 36 which is axially movable on an outer circumference thereof; In parallel with the screw member spaced apart, the guide groove (35) is inserted into the guide groove (61a, 61b) formed in the base, respectively, movable along the guide groove and movable in the axial direction on the outer circumference thereof. Guide rod 37, A defect that is connected to the extended ends of the guide shaft (33a, 33b) for connecting the female screw member and the guide port moves along the width direction to the steel d as the screw member rotates, and the grinding sand 31 is attached. Removal body 30, An air cylinder 40 to which the rod end is connected to the horizontal shaft 34 fixed to the induction shaft to move the main body; Steel roll defect elimination device, characterized in that it comprises a means for sucking and discharging the foreign matter generated by being connected to the main body.