KR100973905B1 - Apparatus for guiding material in wire rod rolling - Google Patents

Abstract

Provided is a roll material guide device of the wire rod.

The present invention is a guide device for guiding a rolled material of the wire rod, the horizontal guide for guiding the lower end of the rolled material so that the rolled material can pass through and installed in both directions of the rolled material on both sides of the horizontal guide, both side portions of the rolled material A guide body having a rolled material guide having a side guide for guiding it on one side; And guide the rolled material passing through the guide part to a rolling mill while being installed to be movable to the rolled material guide part, and the width of the rolled material guided to the rolling material is variable, thereby guiding the rolled material having increased width after rolling. Auxiliary guides; The auxiliary guide includes an outer member and an inner member having one side end connected to each other, and the side guides are engaged between the outer member and the inner member of each of the auxiliary guides so that the auxiliary guide is engaged. Is movable.

According to the present invention, a rolled material whose width is increased by rolling passes through the rolled material guide device in a direction opposite to the normal traveling direction without dismantling and separating the rolled material guide device in the rolling process line when an unexpected situation occurs during the rolling process. Can be moved to.

Rolling, wire rod, ball rolling, inlet guide, outlet guide, rolled material, billet, roughing mill

Description

Apparatus for guiding material in wire rod rolling}

1 is a process chart showing a general process of rolling a wire rod.

2 is a view showing a rough rolling process using a conventional rolled material guide device.

3 is a perspective view of a rolled material guide device of a conventional wire rod.

Figure 4 is a perspective view of one embodiment of a rolling material guide device of the wire rod according to the present invention.

FIG. 5 is a perspective view showing one auxiliary guide of the rolled material guide device of the wire rod shown in FIG. 4; FIG.

6 is a perspective view showing the other auxiliary guide of the rolled material guide device of the wire rod shown in FIG.

Fig. 7 is a perspective view showing the guide body shown in Fig. 4 composed of a rolled material guide and a guide base.

8 is a plan view of the auxiliary guide shown in FIG.

9 is a plan view of the guide body shown in FIG.

10 is a diagram illustrating a case where the rolled material guide device according to the present invention is used in the rough rolling process of the wire rod rolling process.

FIG. 11 is a diagram illustrating a situation in which an unexpected sudden situation occurs during the rough rolling process, in which the roll is reversed to reverse the rolled material in the direction of the heating furnace.

12 is an enlarged view of an important part of FIG. 10.

FIG. 13 is an enlarged view of an important part of FIG.

14 is a plan view of FIG.

Figure 15 is another plan view of Figure 4 with the width between the auxiliary guides expanded.

      Explanation of symbols on the main parts of the drawings

1: billet 2: tip of rolled material

10,100: heating furnace 20,200: rolling material guide device

21,210: Rest Bar 22,220: Clamp

23,230: Fixing bolt 24,240: Nut

30: guide body 31: rolled material guide

32: horizontal guide 33,33 ': side guide

34,34 ': Side guide contact surface 35,35': Bolted part

36: guide base 40,40 ': auxiliary guide

41,41 ': Outer member 42,42': Auxiliary guide contact surface

43,43 ': Inner member 44,44': Induction guide

45,45 ': Through hole 50,50': Adjustment bolt

60,60 ': Spring 70,700: Roughing Mill

80,800: ball roll

The present invention relates to a device for guiding a rolled material of a wire rod, and more particularly, a sudden situation occurs during a continuous rolling process of the wire rod to reversely rotate a ball roll to move the rolled material in a direction opposite to a normal running direction of the rolled material. In this case, the present invention relates to a rolled material guide device capable of moving a rolled material in a direction opposite to a normal traveling direction without dismantling and separating the rolled material guide device in a rolling process line.

In general, wire rod rolling is a billet rolling process of heating the billet of the rolled material having a cross section of 160mm × 160mm to 920 ℃ ~ 1200 ℃ that can be rolled wire according to the steel type of the billet in the heating furnace, as shown in Figure 1 After continuous rolling of phosphorous rolling, intermediate rough rolling, intermediate finishing rolling and finishing rolling, it is processed to 5.5 ~ 42mm in diameter, and then the wire products are processed through cooling, winding, heat treatment, product inspection, basis weight, and storage warehouse loading. To produce.

In the rough rolling process, the billet of the rolled material extracted from the furnace is first processed into a rolled material having a diameter of 95 mm to 100 mm through a rolling mill No. 1 (shown as # 1 STD in Fig. 1) to a rolling mill No. 5 shown in FIG. In the intermediate rough rolling process, the rolled material processed in the rough rolling process is processed to a diameter of 29 to 42 mm through eight rolling mills of rolling mills 5A to 11.

The inlet of the rolling mill is provided with an inlet rolling material guide device for accurately guiding the rolled material to the ball roll, and the outlet is essentially composed of an exit rolling material guide device for guiding the rolled material that is rolled and released to the next rolling mill accurately. .

In general, wire rod rolling is a ball rolling method, and a wire rod is rolled by precisely inducing a rolled rod to a roll of a rolling mill by a rolled material guide device, and as the width of the rolled material guide device approaches the width of the rolled material, The guide device improves the function of guiding the rolled material to the center of the ball roll. Therefore, the width of the rolled material guide device ensures only the minimum gap space through which the rolled material can pass.

When the rolled material is rolled by the ball rolling method, the width is spread, and the width of the rolled material is wider than the width of the rolled material guide device.

That is, as shown in FIG. 2, the rolled material guide device 200 located at the inlet of the roughing mill 700 has a width of approximately 170 mm, and the rolled material heated from the heating furnace 100. The billet 1 is guided to guide the center of the ball roll 800 of the first rough rolling mill 700, and as shown, the billet 1 of the rolled material having a dimension of 160 mm × 160 mm is a ball roll ( When the ball is rolled through 800, the rolled material is spread by about 120 mm in height and 177 mm in width.

On the other hand, in the case of continuous wire rod work in the intermittent unexpected situation occurs in the rolling process line, the rolling work is stopped. At this time, in the case of the rough rolling process, the billet heated from the heating is reversed back into the heating furnace and reloaded to prepare for the next wire rod rolling operation.

If the leading end of the rolled material flows into the roughing mill No. 1 of the rough rolling process, the ball roll of the roughing mill No. 1 is driven in reverse rotation to remove the front end of the rolled material from the first rough mill to separate it. do. Subsequently, the rolled material is recycled through a series of operations of reloading the rolled material into the furnace to perform efficient wire rolling.

However, when the conventional rolled material guide device 200 having a constant width as shown in FIG. 3 is used in the rolling process of the wire rod, the tip portion 2 of the rolled material is applied to the first rough mill 700 of the rough rolling process. In the case of the inflow and rolling work, the width of the rolled material guide device 200 is fixed to about 170 mm and the width of the tip 2 of the rolled material is already increased to 177 mm by the ball rolling. The front end portion 2 of the raw material is not guided to the inside of the rolled material guide device 200, and as shown in FIG. 2, the rolled material is driven by the reverse rotation driving of the ball roll 800 of the first rough rolling mill 700. The reverse action of is not made.

Therefore, when the rolled material needs to be stopped and reloaded into the heating furnace due to the occurrence of an unexpected situation, when the conventional rolled material guide device is used in the rolling process line of the wire rod, the rolled material guide After dismantling the clamp 220, the fixing bolt 230 and the nut 240 fixing the apparatus 200 to the rolling process line, the clamp 220 is pulled out and disassembled from the inlet side of the roughing mill 700 and the rolling process Separation from the line must be made to eliminate the action that impedes the retraction of the rolled material.

In addition, during the operation of disassembling and separating the rolled material guide device 200 of the first rough mill 700, the temperature of the billet of the rolled material is about 1000 ° C., which is high temperature, thereby providing a poor surrounding environment and thus high working strength. In addition, since the weight of the rolled material guide device 200 is very heavy, a series of operations of dismantling and separating the rolled material guide device 200 from the first rough rolling machine 700 becomes very difficult.

Therefore, when it is necessary to reverse the ball roll in the event of an unexpected situation during the rolling process to move the rolled material in the direction opposite to the normal traveling direction, the work of dismantling and separating the rolled material guide device 200 from the rolling process line is performed. Since the work strength is high and difficult, it takes a very long time to stop the rolling process and reload the rolled material into the furnace 100.

In order to proceed with the rolling process again after reloading the rolled material, the work of reassembling and disassembling the separated rolled material guide device 200 to the rolling process line, that is, the inlet of the roughing mill 700 is required. The time is delayed again.

Therefore, there is a problem that the productivity of the whole rolling process is lowered due to the delay of the series of working time as described above.

In addition, when the required time for reloading the rolled material into the furnace 100 and reloading becomes longer, the time for the rolled material to be exposed to the outside air increases. When the material is reheated, a large amount of heat is required, resulting in low productivity and high cost.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is that when a sudden situation occurs during the rolling process, the rolled material has already increased in width due to rolling passes through the rolling material guide device It is to provide a rolled material guide device that is movable in the direction opposite to the normal running direction.

It is another object of the present invention to provide a rolled material guide device in which the width of the rolled material guide device that is variable during the series of operations for moving the rolled material in the normal running direction or the opposite direction is kept stable.

According to an aspect of the present invention,

In the guide device for guiding the rolled material of the wire rod,

A rolled material guide part having a horizontal guide for guiding the lower end of the rolled material and a side guide for guiding both side portions of the rolled material formed on both sides of the horizontal guide to allow the rolled material to pass therethrough Guide body; And

The rolled material guide part is guided to the rolling material passing through the guide while being guided to the rolling mill is configured to guide the rolled material is a variable width is configured to guide the rolled material increased width after rolling guide; Including;

The auxiliary guide has an outer member and an inner member having one end portion connected to each other, and the side guide is engaged between the outer member and the inner member of each of the auxiliary guides so that the auxiliary guide is movable. Provided is a rolled material guide device of a wire rod.

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More preferably, the side guide has a side guide contact surface in contact with the auxiliary guide, the side guide contact surface is tapered so that the thickness becomes thicker toward the normal running direction of the rolled material.

More preferably, the taper slope of the side guide contact surface is 1/10 to 1/30.

More preferably, the auxiliary guide has an auxiliary guide contact surface in contact with the side guide, and the auxiliary guide contact surface is tapered so as to become thinner in the normal traveling direction of the rolled material.

More preferably, the taper inclination of the auxiliary guide contact surface is 1/10 to 1/30.

More preferably, the outer member of the auxiliary guide is formed with a long through hole in the longitudinal direction, the side guide is formed with a bolt fastening portion at a position corresponding to the through hole, the adjustment bolt is formed through the through hole of the side guide It is fastened to the bolted part.

More preferably, a spring is mounted between the adjusting bolt and the outer member so that the spring force is applied to the auxiliary guide.

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

Figure 4 is a perspective view of an embodiment of the rolled material guide device 20 of the wire rod according to the present invention, as shown, the rolled material guide device 20 according to the present invention is a rolled material guide portion 31 through which the rolled material passes A guide body (30) comprising a guide base (36) fixed and supported by a rolling process line, and auxiliary guides (40, 40 ') movably installed on the rolled material guide (31) to guide the rolled material. ) And induction guides 44 and 44 'for guiding the rolled material to the rolled material guide device 20.

As shown in FIG. 7, the horizontal guide 32 guides the lower end of the rolled material so that the rolled material passes through the upper portion of the guide body 30, and the rolled material moves on both sides of the horizontal guide 32. The rolled material guide part 31 which is provided in the direction and consists of the left and right side guides 33 and 33 'for guiding both side parts of the rolled material is formed, and the lower part of the rolled material guide part 31 is formed. The guide base 36 which supports and is fixed to a rolling process line is formed.

As shown in FIG. 4, the guide base 36 of the guide body 30 has a lower end thereof seated on the rest bar 21 to be engaged with the clamp 22 to fit the fixing bolt 23 and the nut 24. It is fixedly installed in the wire rod rolling process line.

Both side guides 33 and 33 'of the rolled material guide 31 are provided with outer members 41 and 41' and inner members 43 and 43 'as shown in detail in FIGS. One end of each of them is connected to each other to form a 'c'-shaped auxiliary guide (40, 40') is mounted relatively movable relative to the side guide (33, 33 ').

That is, the side guides 33 and 33 'are engaged between the outer members 41 and 41' of the auxiliary guides 40 and 40 'and the inner members 43 and 43', so that the auxiliary guides 40 and 40 'are fitted. ') And the side guides 33 and 33' can be moved relative to each other.

Since the auxiliary guides 40 and 40 'have a' c 'shape, the side guides 33 and 33' can move to the open side of the auxiliary guides 40 and 40 ', and the auxiliary guides 40 and 40' The movement stops when it reaches the closed end.

In addition, induction guides 44 and 44 'are formed on the closed side of the auxiliary guides 40 and 40' to be inclined from the inner side to the outer side so that the rolled material is transferred to the rolled material guide part 31 of the rolled material guide device 20. It guides, the through-hole 45, 45 'is formed in the longitudinal direction in the outer member (41, 41') of each of the auxiliary guide (40, 40 ').

As shown in Fig. 7, each of the side guides 33 and 33 'corresponds to a through hole 45 and 45' formed in the outer members 41 and 41 'of the auxiliary guides 40 and 40'. Bolted portions 35 and 35 'are formed in the side, so that the adjustment bolts 50 and 50' pass through the through holes 45 and 45 'of the auxiliary guides 40 and 40'. ') Is to be fastened to the bolted portion (35, 35') of.

When the auxiliary guides 40 and 40 'are completely in contact with the side guides 33 and 33', the position of the adjusting bolts 50 and 50 'in the through holes 45 and 45' is determined by the auxiliary guides 40 and 40 '. End of the adjusting bolt 50, 50 'at the through hole 45, 45' when the auxiliary guides 40, 40 'are spaced apart the maximum from the side guides 33, 33'. The position ends at the open side of the auxiliary guides 40 and 40 '.

The maximum position at which the auxiliary guides 40 and 40 'are brought into close contact with the side guides 33 and 33' is a '-' shape of the auxiliary guides 40 and 40 'that meshes with the side guides 33 and 33'. Is determined by the shape and dimensions of the auxiliary guide (40, 40 ') is spaced apart from the side guide (33, 33') the maximum position of the outer member (41, 41 ') of the auxiliary guide (40, 40') It is determined by the length of the through holes (45, 45 ') formed and the position of the adjustment bolt (50, 50').

FIG. 8 is a plan view of the auxiliary guide 40 shown in FIG. 5, and as shown, the auxiliary guide contact surface 42, in which each of the auxiliary guides 40 is in contact with the side guide 33, is a normal running direction of the rolled material. Tapered to get thinner. Although not shown, the other auxiliary guide 40 'also has an auxiliary guide contact surface 42' in contact with the other side guide 33 ', and the auxiliary guide contact surface 42' also has the above-described auxiliary guide contact surface ( As with 42), the taper is tapered to become thinner in the normal traveling direction of the rolled material.

If the taper inclination of the auxiliary guide contact surfaces 42 and 42 'is greater than 1/10, the thickness of the auxiliary guides 40 and 40' should be increased. When the thickness of the auxiliary guides (40, 40 ') is thick, the weight will go out a lot, there is a difficulty in operating the rolled material guide device (20). It also causes interference with the mill housing.

In addition, when the taper inclination is smaller than 1/30, the length of the auxiliary guides 40 and 40 'becomes long, so as to widen the width between the auxiliary guides 40 and 40' so that the rolled material having the spreading width can pass therethrough. Since the auxiliary guides 40 and 40 'need to move a relatively long distance, it is difficult to operate the rolled material guide device 20 as in the case where the inclination is larger than 1/10.

Therefore, the taper inclination of the auxiliary guide contact surfaces 42 and 42 'which minimizes the difficulty and interference as described above preferably has a slope of 1/30 to 1/10, more preferably of 1/20. It is desirable to have a taper slope.

FIG. 9 is a plan view of the guide body 30 shown in FIG. 7, and the side guide contact surfaces 34 and 34, in which respective side guides 33 and 33 'come into contact with the auxiliary guides 40 and 40', as shown in FIG. ') Is tapered to become thicker in the direction opposite to the normal running direction of the rolled material.

Similarly to the auxiliary guide contact surfaces 42 and 42 ', when the taper inclination of the side guides 33 and 33' is greater than 1/10, the thickness of the side guides 33 and 33 'should be increased. When the thickness of the side guides 33 and 33 'becomes thicker, the weight of the side guides 33 and 33' becomes heavy, which makes it difficult to operate the roll material guide device and causes interference with the rolling mill housing.

In addition, when the taper inclination is smaller than 1/30, the auxiliary guides 40 and 40 can pass between the auxiliary guides 40 and 40 'such that the rolled material having a wider width can pass between the auxiliary guides 40 and 40' as in the case of the auxiliary guide contact surfaces 42 and 42 '. Since the auxiliary guides 40 and 40 'need to move a relatively long distance to widen the width between the 40'), it becomes difficult to operate the rolled material guide device 20.

The taper inclination of the side guide contact surfaces 34 and 34 'which minimizes the difficulty and interference as described above has a slope of 1/30 to 1/10 similar to the auxiliary guide contact surfaces 42 and 42' described above. It is preferred, and more preferably it has a slope of 1/20.

The auxiliary guide contact surfaces 42 and 42 'of the auxiliary guides 40 and 40' and the side guide contact surfaces 34 and 34 'of the side guides 33 and 33' are in contact with each other so that they can slide with respect to each other. The auxiliary guides 40 and 40 'and the side guides 33 and 33' can move relative to each other. In addition, since both contact surfaces are tapered, the width between the auxiliary guides 40 and 40 'can be changed according to the relative movement of the auxiliary guides 40 and 40' and the side guides 33 and 33 'with respect to each other. do.

That is, when the auxiliary guides 40 and 40 'are completely in close contact with the side guides 33 and 33', the width between the auxiliary guides 40 and 40 'is minimized, and the auxiliary guides 40 and 40' are sided. The width between the auxiliary guides 40 and 40 'is maximized when it moves from the guides 33 and 33' to the maximum separation position.

FIG. 14 is a plan view of FIG. 4, in which the auxiliary guides 40 and 40 'are fully engaged with the side guides 33 and 33' of the rolled material guide device 20, as shown in FIG. The width between 40 and 40 'is set to 170 mm to guide the billet 1 of the rolled material having a dimension of 160 mm x 160 mm to stably flow into the center of the ball roll 80.

Under these conditions, as shown in FIGS. 10 and 12, the billet 1 of the rolled material is heated in the heating furnace 10 and guided to the center of the ball roll 80 of the first rough rolling mill 70. At this time, compression springs 60 and 60 'are mounted between the outer members 41 and 41' of the auxiliary guides 40 and 40 'and the adjustment bolts 50 and 50'. Due to the elasticity of the auxiliary guide (40, 40 ') is in close contact with the taper inclination 1/20 about the wall surface of the side guide (33, 33').

In the process in which the billet 1 of the rolled material is heated from the heating furnace 10 to a temperature suitable for rolling, enters the ball roll 80 of the first rough rolling mill 70, and is rolled, the rolled material guide device 20 The auxiliary guides (40, 40 ') of the rolled material guides the billet (1) is guided in frequent contact with the billet (1), the auxiliary guides (40, 40') receives an external force in the direction of the rolled material However, as shown in FIG. 14, since the 'c' shaped auxiliary guides 40 and 40 'are prevented from moving toward the ball roll 80 by the side guides 33 and 33', the auxiliary guide 40 40 ') is kept constant.

11 and 13, the width between the auxiliary guides 40 and 40 'of the rolled material guide device 20 when the tip portion 2 of the rolled material is moved in the direction opposite to the normal traveling direction. Since it is expandable, it is also possible to set the width of the rolling material guide apparatus 20 to 170 mm or less so that the width | variety of the rolling material guide apparatus 20 may approach 160 mm x 160 mm which is the dimension of a rolling material when a rolling material advances normally.

10 illustrates a rough rolling mill 70 and a rolled material guide device 20 installed at an inlet thereof when a normal wire rod rolling operation is performed, and as shown, the billet 1 of the rolled material is a heating furnace ( When heated to a rolling temperature in 10), the leading end portion (2) of the rolled material is introduced into the center of the ball roll (80) in accordance with the guide guidance of the rolling material guide device 20 of the first rough rolling mill 70, the ball roll ( 80) wire rod is made by rolling, in general, the rolled material having a dimension of 160mm × 160mm is made to spread along the wire rod at the neutral point of the ball roll 80, the width thereof is increased to approximately 177mm.

At this time, the rolled material guide device 20 is 170mm in width as shown in FIG. 12, which is an enlarged view of the main part of FIG. 10, to guide the billet 1 of the rolled material having a dimension of 160mm × 160mm. Is set to.

In the ball rolling method as described above, which is a general rolling method of wire rod, the width of the rolled material guide device 20 is closer to the size of the width of the billet 1 of the rolled material, so that the rolled material is guided to the center of the ball roll 80. Function to improve.

However, the rolled material guide device of the wire rod that can not pass close to the size of the width of the rolled material, and pass the rolled material safely due to factors such as poor squareness and twisting of the rolled material, thermal expansion and poor dimensions of the rolled material ( Since a minimum space of 20) must be secured, in the case of a rolled material having a width of 160 mm, the width of the rolling guide device is set to achieve approximately 170 mm as described above.

On the other hand, in the case of continuous wire rolling work, if an abnormal sudden situation occurs in the rolling process line intermittently the rolling work is stopped.

For example, during the rough rolling process as shown in FIG. 10, the billet 1 of the rolled material coming out of the heating furnace 10 is reversed back into the heating furnace 10 and reloaded to prepare for the next wire rod rolling operation. do.

At this time, when the leading end portion 2 of the rolled material flows into the first rough mill 70 of the rough rolling process and is being rolled, the width of the rolled material front end 2 is increased to about 177 mm due to the spreading. As shown in FIG. 11, the ball roll 80 of the number 1 roughing mill 70 is driven in reverse rotation to move the rolled material in a direction opposite to the normal traveling direction.

When the tip portion 2 of the rolled material, which has already been increased in width, moves in the opposite direction to the normal traveling direction due to the reverse rotation of the ball roll 80 and then touches the rolled material guide device 20, the rolled material having the increased width is formed. Since the auxiliary guides 40 and 40 'of the rolled material guide device 20 are pushed from the ball roll 80 toward the heating furnace 10, the auxiliary guide contact surfaces 42 and 42' of the auxiliary guides 40 and 40 'are pushed. ) Moves along the side guide contact surfaces 34 and 34 'of the side guides 33 and 33'.

Since the auxiliary guide contact surfaces 42 and 42 'and the side guide contact surfaces 34 and 34' are tapered, the auxiliary guides 40 and 40 'are spaced apart from the side guides 33 and 33'. As it moves, the width between the auxiliary guides 40 and 40 'gradually widens.

When the auxiliary guides 40 and 40 'are moved from the side guides 33 and 33' so that the width of the auxiliary guides 40 and 40 'becomes wider than the width of the rolled material tip 2 in which the spreading is made, The rolled material whose width is increased by the rolling of 80 can pass through the rolled material guide device 20.

That is, as shown in Fig. 13, which is an enlarged view of the essential part of Fig. 11, the rolled material tip 2 whose width is increased to about 177 mm by the wire rod rolling is moved in the direction opposite to the normal traveling direction, while being in between The rolling material guide device 20 assists the rolling material guide device 20 when it is continuously moved after touching one end of the inner members 43 and 43 'of the auxiliary guides 40 and 40' of the rolled material guide device 20 having a width of about 170 mm. The guides 40 and 40 'are moved approximately 100 mm (70 mm to 100 mm) in the direction opposite to the normal running direction of the rolled material.

At this time, the width between the auxiliary guides 40 and 40 'of the rolled material guide device 20 is expanded to about 180 mm (177 mm to 180 mm) (when the taper slope is 1/10).

Therefore, the rolled material front end portion 2 having the width spread in the roughing mill 70 at about 177 mm can pass safely through the rolled material guide device 20.

Through-holes 45 and 45 'are formed in the outer members 41 and 41' of the auxiliary guides 40 and 40 ', and bolted portions 35 and 35 are provided in the side guides 33 and 33'. ') Is formed, the adjustment bolt (50, 50') can be fastened to the bolted portion (35, 35 ') through the through holes (45, 45'). In addition, compression springs 60 and 60 'are mounted between the adjustment bolts 50 and 50' and the outer members 41 and 41 'of the auxiliary guides 40 and 40'. Due to the repulsive action, the width between the auxiliary guides 40 and 40 'is stabilized and expanded.

At this time, when the adjusting bolt (50, 50 ') moving in the through hole (45, 45') touches the end of the through hole (45, 45 ') toward the open side of the auxiliary guide (40, 40'), the auxiliary guide 40 and 40 'are no longer movable, and the width between the auxiliary guides 40 and 40' of the rolled material guide device 20 is approximately 184 mm, making the maximum width.

By changing the width between the auxiliary guides 40 and 40 'of the rolled material guide device 20 in the above-described manner, the rolled material tip 2, which has already been increased in width by rolling, It can be passed between the auxiliary guides (40, 40 ') to move in the direction opposite to the normal traveling direction can be reloaded in the heating furnace (10).

Therefore, when it is necessary to move the rolled material whose width has already been increased by rolling in the direction opposite to the normal traveling direction, the rolled material can be moved without dismantling and separating the rolled material guide device from the rolling process line, Work time is shortened and productivity is improved.

In addition, even when the rolled material reloaded in the furnace is reheated to the rolling temperature and then moved back to the normal direction, there is no need to reassemble the rolled material guide device in the rolling process line, thereby reducing the work time and improving productivity. Will be.

In addition, since the working time is shortened, cooling of the rolled material by the outside air is made less, so that when the rolled material is reloaded into the heating furnace and reheated to the rolling temperature, a large amount of heat is not required. Thus, productivity is improved and costs are reduced.

In the embodiment of the present disclosure has been described taking a case where the minimum width between the billet of the rolled material having a dimension of 160mm × 160mm and the auxiliary guide of the rolled material guide device is 170mm as an example, the billet of the rolled material having other dimensions It will be apparent to one of ordinary skill in the art that the width between the trap and its auxiliary guide suitable for guidance and guidance is also possible.

In addition, in the embodiment of the present description, the rolling material guide device of the wire rod is described as guiding the guide by installing the inlet of the roughing mill, but may also be installed at the outlet to guide the rolling material to the ball roll of the next rolling mill, In addition to the rough mill, it will be apparent to those skilled in the art that the rolled material can be guided by being installed at the inlet or outlet of the intermediate sand mill or the finishing mill.

According to the present invention as described above, the rolling material guide device is provided with a guide body in which a rolling material guide part is formed so as to allow the rolling material to pass on one side, and the rolling material guide part is installed to be movable so that the rolling material guide part is relatively relative to the rolling material guide part. An auxiliary guide for guiding the rolled material to be variable according to the movement is included so that when a sudden situation occurs during the wire rod rolling process and it is necessary to move the rolled material in a direction opposite to the normal traveling direction, the rolled material Without disassembling, separating, and reassembling the guide device in the rolling process line, the rolled material, which has already been increased in width by rolling, can be passed through the rolling material guide device to move in the direction opposite to the normal traveling direction.

In addition, since there is no need to dismantle, separate, and reassemble the rolled material guide device in the event of an unexpected situation, the productivity is improved because the process time is not delayed. Since the surface cooling of the material is not made much, the amount of heat that needs to be heated to the rolling temperature in the furnace after reloading the rolled material into the furnace does not require much productivity, thereby improving productivity and reducing costs.

Then, the adjustment bolt is fastened to the bolt coupling portion formed in the side guide through the through-hole formed in the outer member of the auxiliary guide of the rolling material guide device, by mounting a spring between the adjustment bolt and the auxiliary guide outer member, the auxiliary auxiliary There is an effect that the width between the guides is stabilized when the rolled material moves normally or moves in the opposite direction.

Claims (9)

In the guide device for guiding the rolled material of the wire rod, A rolled material guide part having a horizontal guide for guiding the lower end of the rolled material and a side guide for guiding both side portions of the rolled material formed on both sides of the horizontal guide to allow the rolled material to pass therethrough Guide body; And The rolled material guide part is guided to the rolling material passing through the guide while being guided to the rolling mill is configured to guide the rolled material is a variable width is configured to guide the rolled material increased width after rolling guide; Including; The auxiliary guide has an outer member and an inner member having one end portion connected to each other, and the side guide is engaged between the outer member and the inner member of each of the auxiliary guides so that the auxiliary guide is movable. Rolled material guide device characterized in that. delete delete The rolled material guide of claim 1, wherein the side guide has a side guide contact surface in contact with the auxiliary guide, and the side guide contact surface is tapered so as to become thicker in a normal traveling direction of the rolled material. Device. The rolled material guide device of claim 4, wherein the tapered slope of the side guide contact surface is 1/30 to 1/10. The rolled material guide of claim 1, wherein the auxiliary guide has an auxiliary guide contact surface in contact with the side guide, and the auxiliary guide contact surface is tapered so as to become thinner in a normal traveling direction of the rolled material. Device. 7. The rolled material guide device of claim 6, wherein the taper inclination of the auxiliary guide contact surface is 1/30 to 1/10. According to claim 1, wherein the outer member of the auxiliary guide is formed with a through hole in the longitudinal direction, and the side guide is formed with a bolt fastening portion at a position corresponding to the through hole, the adjustment bolt through the through hole Rolled material guide device of the wire rod, characterized in that fastened to the bolted portion of the side guide. 9. The rolled material guide device of claim 8, wherein a spring is mounted between the adjustment bolt and the outer member so that an elastic force of the spring is applied to the auxiliary guide.

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