KR20030028160A - Burr removing apparatus for the edge of the strip - Google Patents

Abstract

PURPOSE: An apparatus for removing burr on the edge of strip is provided to remove burr of the strip edge generated during side trimming operation using taper rolls so that strip supporting rolls of postprocessing are prevented from being damaged by the strip edge. CONSTITUTION: The apparatus for removing burr on the edge of strip comprises a plural upper taper rolls(40) which have a tapered outward appearance where diameter of the rolls is gradually reduced as it goes from the edge sides to the central side of strip, and which are idly arranged on the upper part of both edges of the strip; a plural lower taper rolls(50) which have a tapered outward appearance where diameter of the rolls is gradually reduced as it goes from the edge sides to the central side of strip, and which are idly arranged on the lower part of both edges of the strip; and a widthwise moving means for moving the upper and lower taper rolls(40,50) in a width direction of the strip correspondingly to width information of the strip, wherein the widthwise moving means comprises upper and lower rotation shafts(20,30) in which screw threads are formed oppositely to each other at both sides centering around the center of the upper and lower rotation shafts(20,30), which are longitudinally arranged in upper and lower parts of the strip in a width direction of the strip in such a way that the upper and lower rotation shafts(20,30) can be axially rotated, and in which the upper and lower taper rolls(40,50) are connected to the screw threads so that the upper and lower taper rolls(40,50) can be moved in a width direction of the strip; and upper and lower driving motors(22,32) connected to the upper and lower rotation shafts(20,30) to rotationally drive the upper and lower rotation shafts(20,30).

Description

Burr removing apparatus for the edge of the strip}

The present invention relates to a protrusion removal device of the strip edge, and more particularly, to a protrusion removal device of the strip edge to remove by the taper roll the protrusion (Burr) of the strip edge generated during the width cutting operation.

In general, strips manufactured in continuous lines of steel mills are subjected to a process of cutting to the width required by the demand, which is performed by a side trimmer, and the width cutter cuts the edge of the strip by a vertical knife. Let's do it.

At this time, the edge of the strip cut by the width cutter is to form a sharp protrusion toward the top or bottom by the wear state and mounting state of the upper and lower knives, the protrusion is formed on the surface of the support roll of the rubber material supporting the strip Since various problems such as damage are generated, a device for removing the protrusion of the strip edge on the downstream side of the width cutter is required separately.

The protrusion removal apparatus of the strip edge according to the prior art is formed of an upper support roll formed to extend in the width direction of the strip to support the top of the strip, and a plurality of lower support rolls installed to support the lower edges of the strip. Since the support rolls are always kept in a constant position regardless of the strip's path and strip width information, they cannot be used in installations where the width changes frequently. Thereby, the problem of damaging the upper surface of the strip is generated while being pressed against the upper surface of the strip.

An apparatus for solving the above problems is disclosed in Utility Model Registration Application No. 1997-13643, which is to remove the protrusion of the edge portion of the strip that has been cut in the width cutter, and proceeds to the top of the strip. Since the guide roll is sealed in three places, the work is done. If foreign matters are mixed during the work, the surface of the strip is damaged. In addition, since the protrusion is removed at a constant position, the strip is slightly deviated from the traveling path. Even if the protrusion is not properly removed was caused a problem that causes the roll surface damage of the process after the processing defect.

In addition, the above-described conventional techniques have not given any consideration to the case of a so-called curved strip, which is convexly deformed at the top of the strip, so that the corner portion of the edge of the curved strip is not properly removed. If not, it will cause a problem of damaging the surface of the strip support roll of the post-process.

SUMMARY OF THE INVENTION The present invention is to solve such a conventional problem, and to prevent the strip supporting rolls, etc. of the post-process from being damaged by the strip edge by removing the burrs of the strip edge generated during the width cutting operation with a taper roll. It is an object of the present invention to provide a device for removing protrusions of strip edges.

1 is a schematic configuration diagram showing a periphery of a width cutting machine in a continuous line of a general steel mill;

Fig. 2 is a perspective view of the entirety of the strip removal apparatus of the strip edge according to the present invention.

3 is an explanatory view of the operation of the present invention; to be.

※ Explanation of symbols about main part of drawing ※

10: guide rail 12: horizontal support

14: vertical support 20: upper rotary shaft

22: upper drive motor 24: upper moving body

26: sensor 28: cylinder

30: lower rotation shaft 32: lower drive motor

34: lower movable body 38: sliding support shaft

40: upper taper roll 50: lower taper roll

51: drive motor

As a technical configuration for achieving the above object, the present invention comprises: a plurality of upper tapered rolls having a tapered shape that shrinks toward the center of the strip and disposed to be idle on top of both edges of the strip; A plurality of lower taper rolls that have a tapered shape that shrinks toward the center of the strip and are rotatably disposed at the bottom of both edges of the strip; And, by providing a protrusion removal device of the strip edge including a width direction moving means for moving the upper taper roll and the lower taper roll in the strip width direction to correspond to the width information of the strip.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic configuration diagram showing a periphery of a cutting machine in a continuous line of a general steel mill, in which a width is cut at the cutting machine 2 while the strip 3 is in progress, and at the edge of the strip 3 in the process. It shows the appearance that the support roll 1 surface of a post process was damaged by the produced protrusion.

Fig. 2 is a perspective view of the strip edge protrusion removal device according to the present invention as a whole, which is installed at the width cutter wake side of the strip.

The device is a guide rail 10 installed in the lower portion of the path through the strip, the horizontal support 12 is installed above the path through the strip, and the horizontal support 12 is fixed to the installation frame (not shown) Have a vertical support 14.

The guide rails 10 are formed long in the width direction of the strip, and are formed in pairs parallel to each other in a predetermined length with respect to the path in which the strip proceeds.

The horizontal support 12 is formed long in the width direction of the strip, the bearing blocks 16 are installed at both ends of the horizontal support 12, the bearing block 16 is both ends of the upper rotation shaft 20 Each rotatably supported, and the upper rotary shaft 20 is formed with threads in different directions on both sides of the center. In addition, the upper rotation shaft 20 is connected to be driven to rotate by the upper drive motor 22, the upper drive motor 22 is mounted on one side of the horizontal support (12).

Both ends of the lower rotating shaft 30 formed long in the width direction of the strip are rotatably supported on each of the vertical supports 14, and the lower rotating shaft 30 is formed in different directions on both sides of the center. Threads are formed. In addition, the lower rotation shaft 30 is connected to be driven to rotate by the lower drive motor 32, the lower drive motor 32 is mounted to the vertical support 14 or other equipment frame. Of course, both ends of the lower rotation shaft 30 is supported by the bearing block 17 so that the axial rotation can be performed smoothly, the bearing block 17 is installed on the vertical support 14 or It may be attached to other equipment frame.

A nut-shaped upper movable body 24 is fitted to the left and right threads of the upper rotating shaft 20 so that the upper rotating shaft 20 is rotatably mounted in the longitudinal direction of the upper rotating shaft 20 when the upper rotating shaft 20 is rotated. On the current side of the strip moving direction of the upper moving body 24, a sensing sensor 26 is installed for detecting the strip of the strip moving toward one side from the traveling path by detecting the edge of the strip, and the upper moving body 24 is also provided. The cylinder 28 is installed vertically fixed.

The cylinder 28 is installed so that the rod 29 faces vertically downward, and the bearing 44 is fixed to the tip of the rod 29. Preferably, one end of the connecting rod 45 is rotatably connected in the width direction of the strip to the tip of the rod 29 and the bearing 44 is fixed to the other end of the connecting rod 45.

The bearing 44 is mounted to one end of the support shaft 42, and the other bearing 45 is mounted to the other end of the support shaft 42.

An upper taper roll 40 having a tapered shape that is reduced toward the strip center toward the support shaft 42 is rotatably fitted in the axial direction. Of course, the upper taper roll 40 may be supported by the support shaft 42 or any one or both of the bearings 44 and 45 mounted on both ends of the support shaft 42 so as to be idle.

Then, the rotation support shaft 46 is fixed to the bearing 45 in the strip traveling direction and the opposite direction, respectively, each of the rotation support shaft 46 extends a predetermined length vertically downward, such rotation support The wheel 47 is installed at the lower end of the shaft 46. Of course, one end of a separate connecting member 48 in the shape of a rod is rotatably installed at each end of the pivot support shaft 46, and the wheel 47 is mounted on the other end of the connecting member 48. In this case, the bearing 44 should be directly fixed to the end of the rod 29.

The wheels 47 are installed to move in the strip width direction along the guide rails 10.

Left and right threads of the lower rotary shaft 30 are respectively fitted with a nut-shaped lower movable body 34 so as to be movable in the longitudinal direction of the lower rotary shaft 30 when the lower rotary shaft 30 is rotated. A support body 36 is fixedly installed on the upper portion of the lower movable body 34 to rotatably support both ends of the lower tapered roll 50.

The support body 36 has a sliding support shaft 38 formed long in the strip width direction through the support body 36 is supported so that the support body 36 can slide in the strip width direction by the sliding support shaft 38, The sliding support shaft 38 is fixed to the installation frame.

The lower tapered roll 50 has a tapered shape that shrinks toward the center of the strip, and each lower tapered roll 50 may be driven to rotate by the drive motor 51.

In addition, a wheel (not shown) is mounted on the lower end of the lower movable body 34 so as to move in the strip width direction by the guide rail 10 or the bottom of the place where the apparatus is installed or other equipment frames.

Of course, the drive motors 22, 32, 51, the sensor 26 and the cylinder 28 are electrically connected to a facility control computer (not shown), and a predetermined program is previously input to the facility control computer. It is set to control the components.

The operation of the present invention having the above configuration will be described.

When the width information of the strip entering the apparatus is input to the facility control computer, the facility control computer drives the upper and lower drive motors 22 and 32 to move the upper taper roll 40 and the lower taper roll 50 to a predetermined position. Move to. At this time, the upper tapered roll 40 is rotated to the upper end portion of the center portion of the strip by the reverse of the cylinder (26).

That is, when the upper and lower driving motors 22 and 32 are driven, the upper and lower rotary shafts 20 and 30 connected thereto are rotated in predetermined directions, respectively, and the upper and lower rotary shafts 20 and 30 are rotated. The installed upper and lower movable bodies 24 and 34 are moved toward the center or the edge of the strip, so that the installed upper and lower taper rolls 40 and 50 connected to the movable bodies 24 and 34 respectively are the width of the strip. Is moved to a predetermined position in accordance with.

When the movement of the upper and lower taper rolls 40 and 50 is completed, the driving of the driving motors 22 and 32 is stopped and the cylinder 28 is moved forward or sequentially, and the cylinder 28 As the upper taper roll 40 is rotated about the pivot support shaft 46 by the advancement, the upper and lower taper rolls 40 and 50 are maintained in the state shown in FIG.

That is, corner portions of both edges of the strip S are positioned between the upper and lower taper rolls 40 and 50, and the corner portions are chamfered by the upper and lower taper rolls 40 and 50. It is transformed into a shape.

In addition, the traveling path of the strip (S) may be changed in the width direction by a predetermined factor, in which case the sensor 26 detects the meandering of the strip (S) and transmits the information to the facility control computer. Thus, the facility control computer moves the upper and lower taper rolls 40 and 50 to correspond to the meandering of the strip S by driving the upper and lower drive motors 22 and 32. , So that the protrusion removal of the edge of the strip by the lower taper rolls 40 and 50 can be stably performed.

As described above, according to the present invention, the strip edge protrusion removing device includes a taper roll positioned above and below the strip edge to deform the top and bottom edges of the strip edge into chamfered shapes. Has the effect of removing.

Particularly, when the upper and lower edges of the strip edge are deformed into chamfered forms, the strip surface of the subsequent equipment is effectively prevented from being damaged even when the strip is curved.

Claims (4)

A plurality of upper tapered rolls 40 having a tapered shape that shrinks toward the center of the strip and disposed to be idle on top of both edges of the strip; A plurality of lower taper rolls 50 having a tapered shape that shrinks toward the center of the strip and disposed to be idle at the lower ends of both edges of the strip; And, Apparatus for removing the protrusions of the strip edge including a width direction moving means for moving the upper taper roll 40 and the lower taper roll 50 in the strip width direction so as to correspond to the width information of the strip. According to claim 1, The widthwise movement means, the screw thread in different directions are formed on both sides centered on the center and are arranged in the width direction on the upper and lower portions of the strip so as to enable rotation in the axial direction. And rotate the upper and lower rotary shafts 20 and 30 and the upper and lower rotary shafts 20 and 30 connected to the threads so that the upper and lower taper rolls 40 and 50 are moved in the width direction of the strip. Apparatus for removing the protrusions of the strip edge, characterized in that consisting of the upper, lower drive motors (22) (32) connected to drive. 3. The strip edge according to claim 1 or 2, further comprising an upper tapered roll pivoting means for allowing the central end of the strip of the upper taper roll 40 to be rotatable in the vertical direction about the other end. Protrusion removal device of. According to claim 3, wherein the upper taper roll rotating means, the rotational support for supporting the upper edge of the strip edge of the support shaft 42 for supporting the upper taper roll 40 to be rotatable in the upward and downward direction And a shaft (28) and a cylinder (28) for moving the strip central end of the support shaft (42) upwards and downwards.