KR20040032177A - An apparatus for guiding a wire rod - Google Patents

Abstract

PURPOSE: A wire rod guiding apparatus is provided which prevents diameter of wire rod from being thinned by tension of the wire rod when leading the wire rod rolled in a preceding rolling mill in a final rolling mill by forming loop on the wire rod, thereby finally rolling the loop formed wire rod in the final rolling mill. CONSTITUTION: The wire rod guiding apparatus(1) comprises a tension control part(8) comprising guiding roller parts(10a,10b) which are rotationally installed at input and output sides of a certain sized upper plate(5), and on which a plurality of wire rod guide rollers(12) are mounted, and a loop control roller(15) installed between the guiding roller parts to push wire rod to one side so that the wire rod passing through the upper plate forms a loop on the upper plate, and tension of the wire rod is controlled according to position of the guiding roller parts and the loop control roller; a guiding part(70) comprising a lowerable and liftable plate(55) that is lowered and lifted and a cylinder(60) for operating the lowerable and liftable plate installed at the upper side of the upper plates, and curved guides(57) formed on the lower surface of the lowerable and liftable plate to connect the guiding roller parts of the input and output sides; and a cobble wire rod control part(90) comprising a space positioned in rear of the upper plate, and a door positioned in rear of the space to guide and store cobble wire rod deviated from a normal course and remove the cobble wire rod to the outside through the door.

Description

Wire Rod Induction Device {AN APPARATUS FOR GUIDING A WIRE ROD}

In the present invention, the wire rolling is divided into two parts (W-line, G-line)

In the process, when the wire rod rolled from the pre-process rolling mill enters the final rolling mill, a loop is formed in the wire rod to prevent the wire diameter from being thinned by the tension of the wire rod. It relates to a wire rod induction apparatus.

Generally, as shown in FIG. 1, the wire rod 200 is made of a wire rod 200 by passing a rolling mill 215 through a plurality of guide rolls 212. The wire rod 200 is supplied to the line converter 222 through the material guide guide 220, the line converter 222 converts the path of the wire rod 200 according to the diameter of the wire rod 200 is produced.

The wire rods 200 manufactured as described above move along the path W-line P1 formed at the lower side of FIG. 1 in the case of the small diameter having the diameter of 5.5 m / m-13 m / m, and the wire rod 200. In the case of a large diameter having a diameter of 14m / m-42m, it is moved along the path G-line P2 formed on the upper side.

In the G-line P2, the path of the wire rod 200 is switched again by the secondary line diverter 228 via the line diverter 222 and the curved line 226, so that one of the windingers 235 and 235 'is changed. When the winding operation is completed in any one of the winding machines 235 and 235 ', the line converter 228 switches the path to wind the other winding machines so that the wire rod 200 is continuously produced. do.

In addition, in the W-line P1 in which the wire rod 200 of small diameter is rolled, the final rolling is performed in the final mill 250 through the line switcher 222 and the side looper 240.

2 is a configuration diagram of a curved line 226 provided in the conventional path G line P2.

When the wire rod 200 finally rolled in the final rolling mill 215 is guided to the G-line P2 through the line converter 222, the wire 200 is wound in the winding machines 235 and 235 'via the curved line 226. Do the work. At this time, when the wire rod 200 passes through the curved line 226, the curved line 226 is provided with a curved pipe 226a and curved guide rollers 226b, the running speed of the wire rod 200 therein If the control is poor, a large resistance is applied to the wire rod 200 from the rolling mill 215 to the winding machines 235 and 235 ', and the scratches are generated by rubbing on the curved pipe 226a and causing product defects. will be.

In addition, a protrusion phenomenon in which the wire rod 200 is separated from the normal path between the rolling mill 215 and the line changer 222 as shown in FIG. While the rolls are broken by the phenomenon, the wire rod 200 protrudes and twists over the line.

Therefore, the operation of removing the wire rod 200 from the facility is very difficult and takes a long time in the processing time, and also due to the protruding wire rod 200 impacts and damages the hydraulic line, etc., not shown, resulting in a fire. There was a problem that occurred.

In order to solve such a problem, as shown in FIG. 4, as shown in FIG. 4, as shown in Korean Patent Application No. 1998-20711, a wire rod 200 is installed by installing a COBBLE BOX 260. Although preventing the deviation from the path, the cobble box 260 is small, the rolling mill 215 and the material guides are twisted to remove the wire 200 was difficult.

In addition, in the side looper 240 device of the W-line P1, as shown in FIG. 5, a pusher roller 266 operating as a pneumatic cylinder with the wire end portion introduced into the final mill 250 is a wire rod ( By pushing the 200 to one side to form a loop (LOOP) (200a) shape to solve the excessive tension applied to the wire rod 200, accordingly the diameter of the wire rod 200 in the final rolling mill 250 is thinly rolled Although the phenomenon is prevented, when the loop 200a control failure occurs in the looper device 240, a change in tension (TENSION) of the tip of the wire rod 200 occurs, thereby causing a problem that the diameter of the wire rod 200 becomes thin.

In addition, wire rods are not rolled (poor diameter of wire), and the defective products are mass-produced, and the final wire 200 is thinly and sharply overlapped, foreign material compression scratches, and SCAB scratches occur due to severe scratching phenomenon due to the friction of the guide portion. It becomes a quality deterioration factor and causes problems of mass production of wire scrap (SCRAP) due to roll marks, ear defects, and poor control of the rear end of the wire due to the roll breaking of the final mill.

In addition, when the tip portion of the wire rod 200 hits the guide 243, a cobble is generated. Accordingly, the wire rod 200 protrudes around the side looper device 240, so that the removal operation is difficult. The problem occurred.

The present invention has been made in order to solve the conventional problems as described above, the object of the present invention is to reduce the diameter of the wire rod caused by tension and loop control failure and the defects due to the roll marks due to the roll cracking, scratches Prevents mass production and ear defects, eliminates trouble caused by cobbles, and prevents interference with equipment by preventing wires from cobbles from normal path by inertial and collision forces. It is to provide a wire rod induction device to enable the operation to minimize the occurrence of equipment downtime.

1 is a configuration diagram showing a wire production line of a general steel mill;

2 is an external view showing in detail the configuration of a curved guide provided in a conventional wire production line;

3 is an explanatory diagram showing a state in which a cobble wire rod is generated in a conventional wire rod production line;

4 is an external view showing a cobble box equipped in a conventional wire production line;

5 is a working description diagram in which a loop formation failure occurs in a conventional wire production line;

6 is an external perspective view of the wire induction apparatus according to the present invention as a whole;

7 is a plan view of the wire induction apparatus according to the present invention seen from above;

8 is a cross-sectional view of the guide of the curved guide provided in the wire guide device according to the invention fixed to the lifting plate;

9 is an operation explanatory diagram for explaining the operation of the cobble wire control unit provided in the wire induction apparatus according to the present invention;

10 is a partial cutaway perspective view showing the main portion of the tension control unit provided in the wire rod induction apparatus according to the present invention;

11 is a partial cutaway perspective view showing the configuration of the guide provided in the wire guide device according to the present invention;

12 is an exploded perspective view of the guide roller unit provided in the wire rod guide device according to the present invention.

<Description of the symbols for the main parts of the drawings>

5 ..... Top plate 10a, 10b .... Guide roller section

12 ..... guide roller 20 ..... eccentric shaft

24 ..... Holders 30a, 30b .... Entrance and exit guide

36 ..... Warm Wheel 38a, 38b .... Worm Gear

45 ..... Bearing Block 47 ..... Pneumatic Cylinder

55 ..... Platform 57 ..... Curved guide

60 ..... Guide groove 70 ..... Guide

74a, 74b ... Guide 90 ..... Controls

92 ..... Space Department 94 ..... DOOR

200 .... Wire rod P1 ..... W-line

P2 ..... G-Line 222 ..... Line Changer

235,235 '.... Winder 240 .... SIDE LOOPER

In order to achieve the above object, the present invention, in the wire rod guided in the wire rod guide process, while adjusting the tension (TENSION) of the wire rod when the wire rod is introduced into the final rolling, the entrance and exit of the top plate of a certain size And a guide roller part equipped with a plurality of wire guide rollers in a rotatable manner, and a loop control roller for pushing the wire rod to one side between the guide roller parts to form a loop on the top plate. Tension adjusting unit for adjusting the tension in accordance with the position of the guide roller and the loop control roller; A guide having a lifting plate lifting up and down at an upper side of the upper plate and a cylinder for operating the lifting plate, and a lower surface of the lifting plate having a curved guide connecting the entry and exit guide rollers; and

And a cobble wire controller configured to guide, store, and remove the coble wire rod deviating from the normal path, including a space located at the rear side of the upper plate and a door located at the rear side of the space, and to be removed to the outside through the door. By providing a wire guide device characterized in that configured to guide while adjusting the tension (TENSION) of.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail according to drawing.

In the wire rod guide device 1 according to the present invention, as shown in FIG. 6, the wire rod 200 passing through the upper plate 5 of a predetermined size forms a loop on the upper plate 5, and the guide roller portion 10a. 10b and the tension control unit 8 to adjust the tension in accordance with the position of the loop control roller 15.

The tension adjusting part 8 is provided with rotatable guide roller parts 10a and 10b equipped with a plurality of wire guide rollers 12 at the entrance and exit sides, respectively, and the guide roller parts 10a and 10b. Between them is provided with a loop control roller 15 for pushing the wire rod 200 to one side.

That is, between the inlet guide roller portion 10a and the outlet guide roller portion 10b, a fixed upper plate 5 is formed to be parallel to the inlet and outlet guide roller portions 10a and 10b, and the guide roller Grooves 5a in which portions 10a and 10b are disposed are provided in the fixed top plate 5.

As shown in detail in FIG. 12, the inlet and outlet side guide rollers 10a and 10b form an eccentric shaft 20 at the lower portion of each guide roller 12 and the fixing screw 22 at the lower end thereof. Is rotatably seated in the holes 24a provided in the disc shaped holder 24, and is fixed by nuts 26 at the bottom of the holder 24, respectively.

In addition, the inlet and outlet guides 30a and 30b for guiding the wire rod 200 are mounted at the center of the guide rollers 10a and 10b, and a plurality of guide rollers 12 are placed on the holder 24. The wire rods 200 may be disposed to be parallel to each other, and may be rotatably mounted in the holes 24a of the holder 24.

The lower shaft of the holder 24 is rotatably mounted to the bracket 34 through the bearing 32, and the bracket 34 is fixed to the lower surface of the upper plate 5, and the worm wheel is attached to the lower shaft. 36 is attached.

In addition, worm gears 38a and 38b coupled to the worm wheel 36 of the lower end shaft are disposed, and the inlet and outlet guide roller portions 10a are disposed below the inlet and outlet guide roller portions 10a and 10b. The rotary motor 40, which is a rotating power body for rotating the blade 10b, is disposed.

Therefore, the shaft of the motor 40 is connected to the rotary shaft 42 of the worm gear 38a which is geared to the worm wheel 36 of the inlet guide roller portion 10a, the rotary shaft 42 is a bearing block It penetrates through 45 to be integral with the rotation shaft 42 of the exit worm gear 38b, and is mounted to be rotatable by the bearing block 45 at the end of the rotation shaft.

In addition, a loop control roller 15 for pushing the roof wire 200 to one side is mounted on the pneumatic cylinder 47 on the upper part of the stationary upper plate 5, and the upper side of the stationary upper plate 5. The curved guide 57 located in the elevating plate 55 of the curved guide grooves 57a are formed to be stably seated when descending.

In addition, when the loop control roller 15 moves forward and backward by the operation of the pneumatic cylinder 47, an arc-shaped guide groove 60 is formed to penetrate the top and bottom of the upper plate 5 so as to move along the correct track. The lower end of the loop control roller 15 is positioned and guided in the guide groove 60. In addition, the pneumatic cylinder 47 is mounted to the upper plate 5 so as to be rotatable through the pin 47a for the angle adjustment when the roof control roller 15 is moved forward and backward as described above.

On the other hand, it is provided with a lifting plate 55 for lifting up and down at the upper side of the upper plate 5 and a cylinder 60 for operating the lifting plate 55, the lower surface of the lifting plate 55, the guide roller portion 10a of the entrance and exit side Guide portion 70 having a curved guide 57 connecting the (10b) is disposed, the guide portion 70 is a lifting plate 55 on the holder base (72a) (72b) provided on one side of the upper plate (5) T-shaped guide (74a) (74b) of the () is inserted so that the slide can be moved up and down, and the pneumatic cylinder 60 for operating the up and down lifting plate 55 up and down, A plurality of lower side upper plates 5 of the lower elevating plate 55 are provided.

In addition, the curved guide 57 for safely guide-guided transport of the loop wire 200, as shown in Figure 8, the lower and upper surfaces of the elevating plate 55, that is, toward the upper plate 5 side of the curved guide ( 57 is fastened and fixed with the curved guide bolt 58.

In addition, as shown in detail in FIG. 10, a door portion 94 is formed on one side of the upper plate 5, and a rear portion 94 is provided to remove the cob wire 200. One cob wire rod control unit 90 is provided.

The present invention configured as described above is mounted in place of the facility of the side liner 240 of the W-line P1 and the curved line 226 of the G-line P2.

In the wire rod guide device 1 according to the present invention, when the wire rod 200 passes through the inlet guide roller portion 10a, the tension adjusting unit 8 has a rotating motor 40 to rotate the rotating shaft worm gear 38a. By transmitting to the inlet side guide roller portion 10a and the outlet side guide roller portion 10b to be rotated at the same time.

At this time, the inlet guide roller portion 10a is rotated in the counterclockwise direction, the outlet guide roller portion 10b is rotated in the clockwise direction so that the wire rod 200 forms a loop.

At this time, the pneumatic cylinder 60 of the guide unit 70 is operated to lower the upper and lower lifting plates 55. Therefore, the curved guide 57 attached to the lower portion of the upper and lower elevating plate 55 is seated in the curved guide groove 57a of the fixed upper plate 5 so that the inlet and outlet side guide rollers 10a and 10b are provided. They are arranged so as to connect the inlet and outlet side guide roller portions 10a and 10b.

When the wire rod 200 flows through the inlet-side guide roller portion 10a in this state, it passes through the curved guide 57 to the outlet-side guide roller portion 10b and is safely transported.

As described above, a large loop is formed at the initial stage when the wire rod 200 flows in, but the wire rod 200 moves the correct trajectory while passing through the curved guide 57. In this case, the loop control roller 15 is operated. When the pneumatic cylinder 47 is operated to allow the loop control roller 15 to support the wire rod 200, and the wire rod 200 passes through the exit guide roller portion 10b to enter the final mill 250. The pneumatic cylinder 60 for operating the elevating plate 55 is operated to raise the elevating plate 55 so that the curved guide 57 is lifted to the upper side of the upper plate 5.

Therefore, the wire rod 200 is supported by the guide rollers 10a and 10b and the loop control rollers 15 without the curved guide 57, and scratches of the wire rod surface are not formed. In addition, when the rear end of the wire rod 200 enters the guide roller portion 10a at the entrance in this process, the rotary motor 40 receives a signal to operate the rotary shaft worm gears 38a and 38b in reverse. That is, the inlet guide roller portion 10a is rotated clockwise, the outlet guide roller portion 10b is rotated counterclockwise, and the loop control roller 15 is reversed so that the tension applied to the wire rod 200 is reduced. The wire rod 200 is rolled while controlling the loop tension to be reduced.

Accordingly, excessive tension is eliminated in the wire rod 200 so that the diameter of the wire rod 200 is not reduced. On the other hand, when the cobble wire rod 200 is generated as shown in FIG. 9, the loop control roller 15 is advanced to allow the cobble wire rod 200 to be guided and stored in the space 92 provided in the cobble wire controller 90. The generated wire rod 200 is removed, and a work of removing the wire rod 200 to the outside is performed through the door 94 provided at the rear thereof.

According to the present invention as described above, the fixed upper plate 5 and the upper and lower elevating plate 55 is configured to be separated, the upper plate 5, the inlet and outlet side guide rollers (10a) (10b) and the loop control roller ( 15) and the lower surface of the elevating plate 55 is provided with a curved guide 57 to produce the wire rod 200 through proper loop control, so that the excessive tension (TENSION) when entering the final mill 250 The size defect of the diameter of the wire rod 200 generated by the taper can be prevented.

In addition, the wire rod 200 was rubbed by the guide to cause scratches, and the final wire rod 200 produced a defective product such as overlapping flaw, foreign material crimping, scap flaw, etc. during the rolling of the wire rod 200, the curved guide 57 By preventing the contact with the wire 200 to prevent the mass production of defective products, it is possible to induce the rolling work by preventing the roll marks and prevent the roll damage. And it is possible to prevent the blemish caused by poor loop control can achieve the quality improvement of the wire rod (200).

In addition, the cobble wire substitute 200 through the cobble control unit 90 can be quickly taken care of that a lot of failure time and equipment damage caused by the deviation from the normal path to achieve productivity improvement and facility efficiency.

Claims (4)

In the wire rod guide device to guide while adjusting the tension (TENSION) of the wire rod 200 when the wire rod 200 is introduced into the final rolling mill in the wire rolling process, Guide rollers 10a and 10b, each of which has a plurality of wire rod guide rollers 12 mounted on the inlet and the outlet of the upper plate 5 of a predetermined size, are rotatably provided, and the guide rollers 10a and 10b. Between them, a loop control roller 15 for pushing the wire rod 200 to one side is provided with a wire rod 200 passing through the upper plate 5 to form a loop on the upper plate 5, and the guide roller portion 10a. A tension adjusting unit 8 for adjusting the tension according to the position of the 10b and the loop control roller 15; The elevating plate 55, which elevates from the upper side of the upper plate 5, and a cylinder 60 for operating the elevating plate 55, the lower surface of the elevating plate 55 has guide roller portions 10a at the entrance and exit sides ( A guide 70 having a curved guide 57 connecting the 10b); and Induces, stores, and stores the coble wire rod 200 deviating from the normal path, including the space 92 located at the rear side of the upper plate 5 and the door 94 located at the rear side of the space 92. Wire guide device, characterized in that configured to guide while adjusting the tension (TENSION) of the wire rod 200, including; The lower end shaft of the holder 24 of the guide rollers 10a and 10b is rotatably mounted to the bracket 34 through a bearing 32, and the bracket 34 is mounted on the upper plate (10). 5) is fixed to the lower surface, the worm wheel (36) is attached to the lower shaft, the worm gear (38a) (38b) is coupled to the worm wheel (36) of the lower shaft is disposed, the entrance and exit guide The lower portion of the roller portion (10a) (10b) wire induction apparatus characterized in that the motor 40 for rotating the inlet and outlet guide roller portion (10a) (10b) is arranged. The upper part of the fixed upper plate (5) is provided with a loop control roller (15) for pushing the roof wire (200) to one side and mounted on the pneumatic cylinder (47). Curved guide grooves 57a are formed in the upper and lower lifting guides 55 so that the curved guides 57 can be stably seated when descending, and the loop control roller 15 operates the pneumatic cylinder 47. In the forward and backward directions, an arc-shaped guide groove 60 penetrates the top and bottom of the upper plate 5 so as to move along the correct track, and the lower end of the loop control roller 15 is positioned in the guide groove 60. Wire guide device characterized in that it is guided. The guide portion (70) of the guide plate (70), the T-shaped guides (74a) (74b) of the elevating plate (55) is movable on the holder base (72a, 72b) provided on one side of the upper plate (5) A plurality of pneumatic cylinders (60) are inserted into the upper and lower movable plates (55) to move up and down, and to operate the upper and lower elevating plates (55) up and down. Wire rod induction apparatus characterized in that there is.