KR101435071B1 - Shape correcting apparatus for material - Google Patents

Abstract

The present invention relates to a workpiece shape correcting device, and more particularly, to a workpiece shape correcting device, which is provided on a roller table for transferring a workpiece, includes a pressing portion for pressing the end portion of the bent material downward, And a vertical moving portion for moving the pressing portion and the horizontal moving portion of the workpiece up and down.

Description

{SHAPE CORRECTING APPARATUS FOR MATERIAL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece shape correcting apparatus, and more particularly, to a workpiece shape correcting apparatus for correcting an end portion of a workpiece bent upward to a plate shape.

Typical steelmaking consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a casting process to transform solid iron into solid, and a rolling process to make iron into steel or wire.

In the rolling process, the slab is charged into a heating furnace and reheated at a temperature suitable for rolling (1100 to 1300 ° C) to extract the product. The product is then subjected to a tensile rolling and a thickness rolling through a roughing mill. And a rolling process.

Related prior arts are disclosed in Korean Patent No. 0238827 (registered on Oct. 15, 1999, entitled "Geometrical Correction Device of Strip").

An object of the present invention is to provide a workpiece shape correcting device capable of preventing a shape defect of a workpiece and improving the quality of the workpiece by correcting the shape of the workpiece having an upward curved bent portion to a plate shape.

A workpiece shape correcting apparatus according to one aspect of the present invention includes: a pressing portion, which is provided on a roller table for conveying a workpiece, and presses the upward bent portion of the workpiece bent upward to correct a plate shape; A horizontal moving part for moving the lower part of the material pressing part along the feeding direction of the work; And a vertically moving part for vertically moving the pressing part and the horizontal moving part.

In the present invention, the material pressing unit includes: a rotation bar formed to extend vertically and having an upper portion hingedly coupled to the horizontal moving unit; And a pressure roller formed to extend in a width direction of the work and rotatably connected to a lower portion of the pivot bar and in rolling contact with an upper surface of the work.

In the present invention, the horizontal moving part is vertically moved by the driving of the vertical moving part. An extension having one end pivotally hinged to the moving table and the other end connected to an upper portion of the workpiece pressing portion; A vertical moving cylinder which is connected to the movable base at one side thereof, connected to the extended base at the other side thereof, and vertically rotates the other end of the extended base by a drive in which the length thereof is expanded and contracted; And a horizontal moving cylinder for rotating the lower portion of the workpiece pressing portion toward the end side of the work by driving the one end of the workpiece is connected to the extension bar and the other side of the workpiece is connected to the presser portion on the upper side of the vertical moving cylinder, ; And

In the present invention, the vertical movement unit includes a support stand upright on the upper side of the roller table; A motor that is installed on the upper portion of the support and is rotationally driven; A pinion connected to a rotation axis of the motor; And a rack connected to the horizontal moving part and moved up and down in conjunction with rotation of the pinion.

In the present invention, a material detection sensor for sensing the shape of the workpiece; And a controller for driving the horizontal moving part and the vertical moving part when the upward bending of the work is sensed by the work detecting sensor and pressing the upward bent part of the work downward by the work pressing part .

In the present invention, the material detecting sensor may include a laser emitting unit formed on one side of the roller table and extending upward and downward, for emitting a laser beam in a width direction of the material; And a laser light receiving unit installed on the other side of the roller table for receiving the laser light emitted from the laser light emitting unit and sensing a side surface shape of the material.

In the present invention, when the upward bending portion of the workpiece reaches the front of the workpiece pressing portion, driving of the roller table is stopped, then the vertical moving portion is driven to bring the workpiece pressing portion into close contact with the workpiece, And the moving part is driven to move the material pressing part to the end side of the work.

The present invention can stably operate a downward pressing force for flatly correcting the upward bent portion of the work while adjusting the vertical (up and down) position and the horizontal position of the work pressing portion by the horizontal moving portion and the vertical moving portion.

The present invention can calibrate the entire upward bent portion of the workpiece in a flat plate shape while continuously moving the workpiece pressing portion from one side of the upward bent portion to the other side by driving the horizontal moving portion.

BRIEF SUMMARY OF THE INVENTION The present invention relates to a method for preventing the defects in the shape of a workpiece by flatly correcting the bending caused by the temperature difference between the upper and lower portions of the workpiece in the rolling process and improving the shape measurement can do.

The present invention can improve the reliability and efficiency of the post-process using the length data of the material, improve the quality of the material, prevent winding defects and safety accidents due to the curved shape of the material, Stability can be ensured.

1 is a perspective view showing an installation state of a workpiece shape correcting apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view showing an installation state of a workpiece shape correcting apparatus according to an embodiment of the present invention.
FIG. 3 is a side view showing an installation state of a workpiece shape correcting apparatus according to an embodiment of the present invention on the line AA in FIG.
4 is an operational state diagram showing a state in which a workpiece shape correcting device according to an embodiment of the present invention is in contact with an upper surface of a workpiece.
FIG. 5 is an operational state view showing a state where a workpiece is calibrated to a plate shape by a workpiece shape correcting device according to an embodiment of the present invention.

Hereinafter, an embodiment of a workpiece shape correcting apparatus according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 and 2 are a perspective view and a plan view, respectively, showing the installation state of a workpiece shape correcting apparatus according to an embodiment of the present invention. FIG. 3 is a cross- As shown in Fig.

FIG. 4 is an operational state view showing a state where a workpiece shape correcting apparatus according to an embodiment of the present invention is in contact with an upper surface of a workpiece, FIG. 5 is a plan view of a workpiece shape correcting apparatus according to an embodiment of the present invention, As shown in Fig.

1 to 3, a workpiece shape correcting apparatus 300 according to an embodiment of the present invention includes a workpiece pressing unit 310, a horizontal moving unit 320, a vertical moving unit 330, a material detecting sensor 340, and a control unit 350.

The material pressing portion 310 is provided on the roller table 20 for transferring the material 10 and presses the upward bent portion 11 of the material 10 bent upward to press the plate 10 downward.

The roller table 20 has a plurality of roller members arranged along the conveying direction of the sheet material 10 so that the sheet material 10 is conveyed to one side , Leftward from 3).

The material pressing portion 310 according to an embodiment of the present invention includes a rotating bar 311 and a pressing roller 312. [

The rotary bar 311 is vertically extended, and the upper portion of the rotary bar 311 is rotatably hinged to the extension portion 322 of the horizontal movement portion 320.

The pressing roller 312 is formed to extend in the width direction of the material 10 (in the vertical direction in FIG. 2) and is rotatably connected to the lower portion of the turning bar 311, and is in rolling contact with the upper surface of the material 10.

The horizontal moving part 320 moves the lower portion of the presser portion 310 and more specifically the pressing roller 312 along the conveying direction of the material 10 (the leftward direction in FIGS.

The horizontal moving part 320 according to an embodiment of the present invention includes a moving base 321, an extension bar 322, a vertical moving cylinder 323, and a horizontal moving cylinder 324. [

The movable table 321 has an extending length in the width direction of the workpiece 10 and is vertically coupled to both sides of the vertical moving part 330 provided on both sides of the roller table 20 in the longitudinal direction.

The rack 334 of the vertical moving part 330 is coupled to the moving base 321 and the moving base 321 is coupled with the driving of the motor 332 of the vertical moving part 330 and the rotation of the pinion 333 And moves up and down together with the rack 334.

The extension 322 has an extension length in the conveying direction of the workpiece 10 and one end in the longitudinal direction is hingedly coupled to the moving base 321 so as to be rotatable and the other end is connected to the rotation bar 311).

When the other end of the extension bar 322 is rotated downward, the rotation bar 311 connected to the extension bar 322 is moved downward together with the extension bar 322, and the pressure roller 312) are also moved downward together.

The vertical movement cylinder 323 is made of a cylinder member that is stretchable and contractible in length, and includes a cylinder portion that forms an oil pressure therein and a piston portion that moves to the inside and outside of the cylinder portion by oil pressure inside the cylinder portion.

The cylinder portion of the vertically moving cylinder 323 is rotatably connected to the moving stand 321 below the extension stand 322 and the piston is rotatably connected to the longitudinal middle portion of the extension stand 322.

When the piston portion of the vertical movement cylinder 323 is moved to the inside of the cylinder portion and the length of the vertical movement cylinder 323 is reduced, the distance between the other end of the extension pole 322 and the movement pole 321 is reduced, ) Is rotated downward.

When the piston portion of the vertical movement cylinder 323 is moved to the outside of the cylinder portion and the length of the vertical movement cylinder 323 is extended, the distance between the other end of the extension portion 322 and the moving base 321 is extended, Is upwardly rotated.

The horizontal movement cylinder 324 is also composed of a cylinder member whose length is elongated and contracted in the same manner as the vertical movement cylinder 323 and has a cylinder portion that forms an oil pressure therein and a piston which is moved to the inside and outside of the cylinder portion by the oil pressure inside the cylinder portion. .

The cylinder portion of the horizontally moving cylinder 324 is rotatably connected to the extension bar 322 and the piston portion is rotatably connected to the rotary bar 311 of the press portion 310 on the upper side of the vertically moving cylinder 323.

When the piston portion of the horizontal movement cylinder 324 is moved to the inside of the cylinder portion and the length of the horizontal movement cylinder 324 is reduced, the upper portion of the rotation bar 311 is moved close to the movement base 321.

At this time, the distance between the lower portion of the rotation bar 311 and the moving table 321 is expanded so that the pressure roller 312 coupled to the lower portion of the rotation bar 311 moves in the horizontal direction , Leftward in FIG. 3).

When the piston portion of the vertical movement cylinder 323 is moved outside the cylinder portion and the length of the horizontal movement cylinder 324 is extended, the upper portion of the rotation bar 311 is moved away from the movement base 321.

The distance between the lower portion of the rotary bar 311 and the movable base 321 is reduced and the pressing roller 312 coupled to the lower portion of the rotary bar 311 moves in the horizontal direction 2, and 3).

The vertical moving part 330 moves the pressing part 310 and the horizontal moving part 320 up and down.

The vertical moving part 330 according to an embodiment of the present invention includes a support 331, a motor 332, a pinion 333, and a rack 334. [

The support table 331 is installed upright on both sides of the roller table 20, and the upper portion extends above the roller table 20.

The motor 332 is fixed to the upper portion of the support 331 and generates a rotational driving force for moving the pressing part 310 and the horizontal moving part 320 up and down.

The pinion 333 is connected to the rotation shaft of the motor 332 and rotated in association with the driving of the motor 332. [

The rack 334 has a vertically extending shape and is fixed to the moving base 321 of the horizontal moving part 320 and moves up and down in association with the rotation of the pinion 333.

A slit having a T-shaped cross section is formed on one side of the support table 331 in contact with the movable table 321 so as to extend upward and downward to form a rail for guiding the movable table 321 to move up and down.

The moving base 321 is formed with a protruding portion having a T-shaped cross-sectional shape corresponding to the slit and fitted to the slit.

When the motor 332 is driven, the workpiece pressing portion 310 and the horizontal moving portion 320 can be linearly and stably moved up and down with the projecting portion formed on the moving table 321 being guided by the slit.

The material sensing sensor 340 senses the shape of the workpiece 10, more specifically, the upwardly bent shape of the workpiece 10.

The material detecting sensor 340 includes a laser emitting unit 341 and a laser receiving unit 342.

The laser emitting unit 341 is vertically installed on one side of the roller table 20 and emits a laser beam in the width direction of the work 10. [

The laser light receiving unit 342 is installed on the other side of the roller table 20 and receives the laser light emitted from the laser emitting unit 341 to sense the side surface shape of the material 10. [

When the material 10 passes between the laser emitting unit 341 and the laser receiving unit 342, a part of the laser beam emitted from the laser emitting unit 341 is reflected from the side surface of the work 10, .

That is, the position (height) at which the laser light is not received in the laser light receiving portion 342 becomes the position (height) of the material 10.

Therefore, when the position where the laser beam is not received is positioned above the position (height) of the workpiece 10 seated on the roller table 20, it can be judged that the workpiece 10 is bent upward.

The controller 350 controls the horizontal movement unit 320 and the vertical movement unit 330 such that the horizontal movement unit 320 and the vertical movement unit 330 move upward and downward as shown in FIGS. And the material presses downward the upward bent portion 11 of the workpiece 10 by the pressing portion 310. [

3, when the upward bent portion 11 of the workpiece 10 reaches the front of the pressure roller 312 of the workpiece pressing portion 310, the controller 350 controls the driving of the roller table 20, that is, , The movement of the work 10 is stopped.

4, the control unit 350 drives the motor 332 of the vertical movement unit 330 in the forward direction to move the pressurizing unit 310 downward and pressurize the pressurizing roller 312 to the workpiece 10, .

The control unit 350 drives the vertical and horizontal moving cylinders 323 and 324 of the horizontal moving unit 320 so as to reduce the length of the horizontal moving cylinders 323 and 324 to move the pressing roller 312 to the workpiece 10, (In the left direction in Figs. 2 and 3) toward the end portion of the frame.

The upper portion of the hot material 10 during rolling is cooled more rapidly than the lower portion and is more likely to have a harder property than the lower portion and the lower portion having a relatively soft nature is elongated, And has a curved shape.

As the temperature difference between the upper and lower portions of the material 10 increases, the degree of upward bending of the material 10 increases. The upward bending portion 11 of the material 10 acts to reduce downward pressing force due to the weight of the material 10 Is most frequently generated at the end of the material (10).

When the end of the material 10 has an upward curved shape, the pressure roller 312 is continuously moved along the longitudinal direction of the material 10 to the end side of the material 10 as shown in FIG. 5, .

The workpiece shape correcting apparatus 300 according to an embodiment of the present invention having the above-described structure is configured such that the horizontal moving part 320 and the vertical moving part 330 move vertically (vertically) The downward pressing force for flatly correcting the upward bent portion 11 of the work 10 can be stably operated while adjusting the horizontal positions.

The horizontal moving part 320 continuously moves the pressing part 310 from one side of the upward bending part 11 of the workpiece 10 to the other side and moves the upwardly bent part 11 of the workpiece 10, The entirety of the liquid crystal panel 11 can be calibrated to a flat plate type.

The present invention prevents the defects of the material (10) from being deformed by flatly correcting the bending generated in accordance with the temperature difference between the upper and lower portions of the material (10) in the rolling process, It is possible to improve the measurement error of the shape (length) of the substrate 10.

The present invention can improve the reliability and efficiency of the post-process using the length data of the material (10), thereby improving the quality of the material (10) And safety accidents can be prevented, so that the stability of the facility operation can be secured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

10: Material 11: Upward bent portion
20: roller table 300: workpiece shape correcting device
310: material pressing portion 311: pivoting bar
312: pressure roller 320: horizontal moving part
321: Moving stand 322: Extension stand
323: vertical movement cylinder 324: horizontal movement cylinder
330: vertical moving part 331: support
332: motor 333: pinion
334: Rack 340: Material detection sensor
341: Laser emitting part 342: Laser receiving part
350:

Claims (7)

A pressing portion provided on a roller table for conveying a material and calibrating the upward bent portion of the material bent upward to downwardly press the material to be flattened;
A horizontal moving part for moving the lower part of the material pressing part along the feeding direction of the work; And
And a vertical moving part for moving the pressing part and the horizontal moving part up and down,
The horizontal moving part includes:
A moving base vertically moved by driving the vertical moving unit;
An extension having one end pivotally hinged to the moving table and the other end connected to an upper portion of the workpiece pressing portion;
A vertical moving cylinder which is connected to the movable base at one side thereof, connected to the extended base at the other side thereof, and vertically rotates the other end of the extended base by a drive in which the length thereof is expanded and contracted; And
A horizontal moving cylinder for rotating the lower portion of the workpiece pressing portion toward the end side of the workpiece by driving the one end of the workpiece to be connected to the extension bar and the other side to be connected to the presser portion at the upper side of the vertical movement cylinder;
And a workpiece shape correcting device for correcting the workpiece shape.
The method according to claim 1,
Wherein,
A rotation bar formed to extend vertically and having an upper portion hingedly coupled to the horizontal movement portion; And
A pressing roller which is formed so as to extend in a width direction of the material and is rotatably connected to a lower portion of the pivot bar and is in rolling contact with an upper surface of the material;
And a workpiece shape correcting device for correcting the workpiece shape.
delete A pressing portion provided on a roller table for conveying a material and calibrating the upward bent portion of the material bent upward to downwardly press the material to be flattened;
A horizontal moving part for moving the lower part of the material pressing part along the feeding direction of the work; And
And a vertical moving part for moving the pressing part and the horizontal moving part up and down,
Wherein the vertical moving part comprises:
A support stand erected upside of the roller table;
A motor that is installed on the upper portion of the support and is rotationally driven;
A pinion connected to a rotation axis of the motor; And
A rack connected to the horizontal moving part and vertically moved in conjunction with the rotation of the pinion;
And a controller for controlling the workpiece shape correcting device.
The method according to claim 1 or 4,
A material detecting sensor for detecting a shape of the material; And
A control unit for driving the horizontal moving unit and the vertical moving unit when the upward bending of the work is sensed by the work detecting sensor and pressing the upward bent portion of the work downward by the work pressing unit;
Further comprising: means for determining the position of the workpiece on the workpiece.
6. The method of claim 5,
The material detecting sensor includes:
A laser emitting unit formed on one side of the roller table so as to extend vertically and emitting a laser beam in a width direction of the material; And
A laser light receiving unit installed on the other side of the roller table for receiving a laser beam emitted from the laser emitting unit and sensing a side surface shape of the material;
And a workpiece shape correcting device for correcting the workpiece shape.
6. The method of claim 5,
Wherein,
Wherein when the upward bending portion of the material reaches the front of the material pressing portion, driving of the roller table is stopped, and then the vertical moving portion is driven to bring the material pressing portion into close contact with the work, And the pressing portion is moved toward the end side of the work.

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