KR20040090749A - Apparatus for controlling the guide pass line of coil rolling machaine - Google Patents

Abstract

PURPOSE: A device for controlling and predicting guide pass line of wire rod rolling mill is provided to simplify pass line control operation and reduce pass line control time by easily and accurately measuring a pass line between wire rod rolling rolls and guiding guide, thereby accurately controlling angle of guide moving base. CONSTITUTION: The device comprises a height adjusting means comprising a guide moving base(25a) which is rested on a groove part of fixed base(23a) of guide, and on a rear surface of which a bolt locking member is formed, a height adjusting bolt(30) on which a locking part inserted into the bolt locking member is formed, and which is connected to the fixed base by passing through fastener of the fixed base, and a taper fixing key(26) fixed to one side of the guide moving base by bolt(26-1); and a sensing means comprising a center plate(41) the center of which is movably fixed by passing through a supporting frame fixed to a rectangular base(40) fixed to a fixed key of the guide moving base, a contact ball(45) fixed to a contact part that is a front part of the center plate by holder(42), a leveling amp(46) fixed to a rear part of the center plate, and a conical indication needle(48) fixed to a rear end part of the center plate.

Description

Pass Line Adjustment & Prediction Device for Wire Rod Rolling Mill {APPARATUS FOR CONTROLLING THE GUIDE PASS LINE OF COIL ROLLING MACHAINE}

The present invention relates to a wire rolling mill guide pass line control and predicting device, and more particularly, V-stand (Vertical Stand, Roll Groove Type = Round) and H-Stand (Horizontal. Stand, Roll Groove Type = Oval) in the wire rod rolling mill. Wire rod rolling mill guide pass line adjustment and prediction device for easily adjusting the pass line between the center of the roll roll caliber (Roll Caliber) and the inlet guide.

In general, as shown in FIG. 1, the wire rod is formed of a 160-angle hot billet material 1 having a relatively large rough rolling (2), an intermediate rough rolling (3), and an intermediate filament rolling (4). The cross-section is reduced by gradually rolling through), and the rolled material is classified into groups.

After the classified group rolling, shears of 2a and 3a are installed, so that the front and rear ends of wire rods of poor quality are cropped to a certain length, and the intermediate finishing rolling (4) is processed. The material is wound in a reeler (6), a cylindrical drum produced by Bar In Coil, which has a relatively large coil section diameter, and the smaller diameter material is rolled in the finishing rolling section (5). It is converted into the coil 10 in a spiral form by the winding machine of the production laying head 8 to a diameter of 5.5-13.0 mm, and it is dropped on a conveyor, and is cooled and conveyed.

In addition, when Cobble occurs in the material immediately before entering the finishing rolling 5, the Cobble Shear 5a is finely cropped by changing the direction in which the material is moved.

As shown in Figure 2a, the wire rod rolling process using the wire rod rolling roll 20 is a guide installed on the exit side when the wire to be rolled through the entrance of the guide guide 13 fixedly installed in the fixed base 23 on both sides Guided by the roll 11 enters the rolling roll 20 and is rolled.

When the guide moving base 25 of the wire rolling equipment, which is formed as described above, is separated from the initial setting position due to various obstacles such as wear deformation of the key portion and groove looseness of the guide, the produced product is shown in FIG. 2B. As the sign R1 is pulled up to the top of the rolled material or as shown in R2 the pull down occurs, so that the ear band part which is not in contact with the rolling roll 20 is protruded scrap (Scrap) due to the shape defect. under,

As indicated by reference numeral O1 or O2, the guide movement base 25 is shifted from side to side in the Oval glove roll to generate ear bands protruding in one side of the left and right, so that the material is scraped or not rolled. In the case of entering the process, a material burst phenomenon occurs due to overlapping rolling in which ear bands are rolled in a manner in which batch rolls of Oval and round rolling rolls are sequentially rolled, resulting in poor quality.

In order to solve the above problems, conventionally, the Pb bar 21 from the entrance of the guide guide 13 while rotating the assembled rolling roll 20 at a jogging speed to match the height of the guide moving base 25. After rolling by passing between the two rolling rolls 20 and rolling, the rolling shape is measured by the naked eye or a mechanism to guide the moving base 25 to the upper and lower parts (V-Stand) or left and right (H-Stand) in FIG. As shown, it is moved and adjusted.

The guide movement base 25 is moved by loosening the table fixing bolt 26-1, loosening the taper fixing key 26, holding the fixing key 25-1 of the guide moving base 25, and moving it little by little. After moving in, the fixing bolt 26-1 is tightened to fix the taper fixing key 26 to fix the guide movement base 25.

When the above adjustment work is completed, the guide guide 13 is re-fastened to the fixed base 23, the Pb (lead) bar 21 is reentered to check the adjusted value. By carrying out the repetitive work requires a long adjustment time, there is a problem that the complexity of the work procedure and the increase of the work load of the worker and the safety accident that the worker's hand is caught on the rolling roll (20).

In addition, when setting the guide movement base 25 to be inclined, such as Θ1 and Θ2, or working in a state where the guide movement base 25 is inclined, such as Θ1 and Θ2, in a work where the operator manually fits the hot state (about 950 ° C) When the material of the back and forth) enters the high-speed rolling roll 20, a cobble accident due to a shook or impact loop occurs, and the wear and roll of the rolling roll 20 and the inlet guide roll The wear of (11) proceeds quickly, and the life is shortened, and the bearing embedded in the roll also has a problem of shortening the life.

In order to solve the above problems, the present invention measures the passline between the vertical and horizontal rolling roll-inlet guide easily and accurately through the measuring device, not the exhaustion type, so as to accurately adjust the angle of the guide moving base fixed to the fixed base. An object of the present invention is to provide a guide line line adjusting and predicting device for wire rod rolling mill which can simplify the pass line adjusting work and shorten the adjusting time.

1 is a classification diagram showing a wire rod manufacturing process for each rolling zone;

Figure 2a is an exemplary view showing a conventional passline adjusting method;

Figure 2b is a pre-sectional view showing various wire defects occurring in the wire rod manufacturing process.

3 is a perspective view illustrating a method of adjusting a guide movement base according to a conventional passline adjusting method;

Figure 4 is an exploded perspective view of the height adjustment means constituting the wire guide rolling guide line adjustment and prediction device according to the present invention;

Figure 5 is an exploded perspective view showing the sensing means constituting the wire guide rolling guide guide line adjustment and prediction device according to the present invention;

Figure 6 is a perspective view showing a state in which the wire rolling mill guide pass line control and prediction device according to the present invention is applied to the vertical rolling roll;

Figure 7 is a perspective view showing a state of the wire rolling mill guide pass line adjustment and prediction device according to the present invention applied to the horizontal rolling roll.

♣ Explanation of symbols for main part of drawing ♣

20: wire rod roll 13: guide guide 23a: fixed base 33: latch

25a: Guide movement base 30: Height adjustment bolt 26: Taper fixing key

40: square base 50: support frame 41: center plate 42: holder

45: contact ball 46: horizontal view amplifier 48: conical indicator hand

In order to achieve the above object, the present invention is a device for adjusting the pass line between the wire rod roll and the guide guide, the guide movement base which is seated by forming a bolt brace in the rear portion of the fixed base groove portion of the guide guide; A height adjusting means including a height adjusting bolt formed through a fastening portion of the fixing base, and a bolt fixing key fixed to one side of the guide moving base by a locking portion inserted into the bolt latch; The center plate is fixed to the center so as to be able to flow through the support frame is fixed to the square base fixed to the fixing key of the guide moving base, the contact ball and the center plate fixed to the holder in the roll contact which is the front end of the center plate It provides a wire rolling mill guide pass line control and predicting device, characterized in that consisting of a sensing means consisting of a horizontal viewing amplifier fixed to the rear portion of the conical indicator needle fixed to the rear end.

In addition, the present invention is the wire rod rolling guide guide line adjustment and foreseen, characterized in that the removable contact by the ball holder to be fixed to the ball of the diameter corresponding to the size of the rolling roll is fixed to the front end of the center plate. To provide the device,

In addition, the present invention is characterized in that the height adjustment means consisting of the guide base and the bolt clamp, the height adjustment bolt, the tapered fixing key seated on the fixed base groove portion is installed in the vertical and horizontal type according to the shape of the wire rolls. Provides a wire rod rolling mill guide pass line adjustment and prediction device.

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

Figure 4 is an exploded perspective view of the height adjustment means constituting the wire rod rolling guide guide line adjustment and prediction device according to the present invention, Figure 5 shows the sensing means constituting the wire rod rolling guide guide line adjustment and prediction device according to the present invention. One is an isolated perspective view.

As shown in Figure 4, the height adjusting means constituting the present invention, first to form a straight groove 32 in the inner central portion of the conventional fixed base 23,

After the fasteners 31a are formed through the grooves 32 formed above, the fastening nuts 31b are formed at the bottom to newly manufacture the fixing base 23a of the present invention.

In the central groove 32 of the fixed base 23a, a bolt latch 33 fixed to the center of the rear surface of the guide moving base 25a constituting the present invention is located.

That is, first, the height adjustment bolt 30 constituting the present invention through the upper fastener 31a of the fixed base 23a, and then the locking portion 30a of the height adjustment bolt 30 is a guide moving base The bolt portion of the adjustment bolt 30 is screwed to the fastening nut portion 31b formed at the lower portion of the fixing base 23a by being operated to be inserted into the bolt latch 33 of 25a.

Therefore, when the height adjustment bolt 30 is rotated, since the latch 33 into which the locking portion 30a is inserted is fixed to the rear portion of the guide movement base 25a, the guide movement base 25a moves upward or downward. The height will be moved.

As shown in FIG. 5, the sensing means of the present invention is installed in the fixing key 25-1 of the guide moving base 25a of the height adjusting means of the present invention configured as described above.

That is, the square base 40 is provided with a recessed portion to accommodate the fixing key 25-1 and to be fixed to the inner surface of the guide moving base 25a.

On the inner surface of the rectangular base 40 is fixed to the support frame 50 that can be fixed to the center plate 41 to be described below.

The central portion of the support frame 50 is fixed to the plate fixing bolt 44-1 so that the central portion of the straight center plate 41 is movable,

A ball support hole 40-1 is formed at the front end portion of the center plate 41, that is, a portion in contact with the rolling roll 20.

In the ball support hole 40-1, the contact ball 45 capable of contacting the rolling part of the rolling roll 20 to detect the position of the roll has a ball holder 42 in which a ball protruding hole 42-1 is processed. Fixed by),

In addition, the contact ball 45 is detachably fixed by the ball holder 42 so that the ball of the corresponding diameter according to the size of the rolling roll 20 can be fixed.

As described above, the rear view of the center plate 41, the contact ball 45 is fixed to the contact portion of the rolling roll 20 is fixed to the horizontal viewing amplifier 46 that can know the horizontal state of the center plate 41 ,

The conical indicator needle 48 is fixed to the rear end of the center plate 41. The conical indicator needle 48 is centered on the rolling roll 20 when the apparatus of the present invention is applied to a horizontal rolling roll. It is to indicate the determined difference in order to determine the pass line with the preceding mill.

Figure 6 is a perspective view showing a state of the wire rolling mill guide pass line control and predicting device is applied to the vertical rolling roll, according to the present invention, Figure 7 is a wire rolling mill guide pass line control and predicting device is a horizontal rolling It is a perspective view which shows the state applied to the roll.

As shown in Figures 6 to 7, the wire rolling mill guide pass line adjustment and prediction device according to the present invention is applicable regardless of the horizontal or vertical.

Hereinafter, the operation of the present invention will be described.

As shown in FIG. 6, an apparatus according to the present invention is applied to the fixing key 25-1 of the guide moving base 25a in a state in which an Oval and round rolling rolls 20 are assembled. The fixing key 25-1 is inserted into the square base 40 on which the square recess 40 formed to correspond to the fixing key 25-1 is formed.

Then, when the center plate 41 is fixed to the square base 40 by the support frame 50 and the horizontal viewing amplifier 46 and the conical indicator needle 48 are pushed toward the rolling rolls 20, The center plate 41 is moved toward the roll with the plate fixing bolt 44-1 at the center.

The contact ball 45, which the center plate 41 and the ball holder 42 restrain, is partially protruded to the size of the protruding hole 42-1 formed in the ball holder 42. The point contact of two grooves occurs in any groove-shaped caliber when the caliber of the rolling roll 20 that is in contact with the diameter of the rolling roll 20 is smaller, and these two points exactly coincide with the center of the caliber. Instruct.

That is, the indication value of the center of the caliber of the rolling roll 20 is indicated by the center plate 41 passing through the support frame 50 in the amplifier 46 for horizontal viewing, and bubbles inside the amplifier 46 are rolled. If it is inclined toward 20, the path of the guide movement base 25a is in a low state, and if bubbles are deflected to the opposite side, the guide movement base 25a is in a high state and the guide movement base 25a is horizontal so that the droplets in the amplifier 46 are horizontal. You can adjust the height of).

7 shows a state in which the apparatus of the present invention is applied to the male wire rod rolling roll 20, and unlike the vertical type, an indication difference centered on the rolling roll 20 is extended by the center plate 41. When the conical indicator needle 48 located at the edge is reached, the old rolling mill rolls round shaped material so that the old mill exit guide uses cylindrical pipe guides.

Compared with the center part of the previous guide of the exit of the rolling mill, the pass line can be determined. When the guide is biased to the left in the drawing, the guide moving base 25a is low, and the guide moving base 25a is focused to the right. Means high.

As described above, in the vertical and horizontal wire rod rolling mill, the bad pass line in the section of the rolling roll 20 and the guide guide 13 is determined by the apparatus according to the present invention, as shown in FIG. First, after disassembling the fixing bolt 26-1 to loosen the taper fixing key 26, the height adjusting bolt provided to move the guide movement base 25a finely in the vertical direction (vertical type) or the left and right (horizontal type) ( 30) to adjust the height,

When the height adjustment bolt 30 is tightened clockwise, the guide movement base 25a of the vertical rolling mill moves downward, and the horizontal rolling mill moves the guide movement base 25a leftward, and in the opposite direction. When the bolt 30 is rotated, the guide movement base 25a of the vertical rolling mill moves upward, and the horizontal movement rolling guide moves the guide movement base 25a rightward.

That is, in the space of the straight groove 32 formed in the inner center portion of the fixed base 23a, the guide movement base 25a has the latch 33 inserted into the latch portion 30a of the height adjustment bolt 30. Therefore, the guide movement base 25a is movable, and when the position adjustment is completed, tighten the fixing bolt 26-1 of the tapered fixing key 26 to firmly fix the fixing base 23a to the guide movement base 25a. ) Is fixed.

As described above, the present invention accurately and quickly measures the pass line between the vertical and horizontal rolling rolls and the inlet guide guide in high-speed precision rolling of wire rod production, and the inlet guide is seated using the indicated values. By easily adjusting and fixing the guide moving base, it is possible to solve the work load and production downtime caused by several repeated adjustments, prevent the production of poor quality coils, and roll directly to the Pb bar while driving the rolling roll. Since the conventional manual work of adjusting the pass line can be excluded, there is an effect of preventing a worker's safety accident.

Claims (3)

In the device for adjusting the pass line between the wire rod roll 20 and the guide guide 13, The guide movement base 25a seated on the rear surface of the fixing base 23a recessed portion of the guide guide 13 is formed, and the latching portion 30a inserted into the bolt latch 33 is provided. A height adjustment bolt 30 is formed to penetrate the fastener 31a of the fixing base 23a and the taper fixing key fixed to the bolt 26-1 at one side of the guide moving base 25a. A height adjusting means composed of 26); Center plate 41 is fixed to the center so as to flow through the support frame 50 is fixed to the square base 40 is fixed to the fixing key 25-1 of the guide moving base 25a, and the center A contact ball 45 fixed to the roll contact portion, which is the tip of the plate 41, by the holder 42, a horizontal bogie amplifier 46 fixed to the rear end of the center plate 41, and a cone-shaped instruction fixed to the rear end. Wire mill rolling mill guide pass line adjustment and foresight device, characterized in that consisting of a sensing means consisting of a needle (48). The method according to claim 1, The contact ball 45 fixed to the front end of the center plate 41 is detachably fixed by a ball holder 42 so as to fix a ball having a diameter corresponding to the size of the rolling roll 20. Wire rolling mill guide pass line adjustment and prediction device. The method according to claim 1, The height adjusting means consisting of the guide moving base 25a and the bolt clamp 33, the height adjusting bolt 30, and the tapered fixing key 26 seated on the fixing base 23a recess is formed of the wire rod roll 20. Wire mill rolling mill guide pass line adjustment and prediction device, characterized in that installed in the vertical and horizontal type according to the shape.