KR100405774B1 - A turks - head of rolling mill - Google Patents

Abstract

The present invention relates to a tux head of a rolling mill, and its object is to improve the installation structure of rolling rolls arranged in four directions so that wire rods having various widths and thicknesses can be rolled regardless of dimensions.

According to the tux head of the rolling mill according to the present invention for this purpose; Rolling rolls 21, 22, 23, 24 are rotatably arranged, respectively, and the roll blocks 32, 42, 52, 62 are arranged in four directions on the front surface of the frame 10. The clearance between the adjacent rolling rolls 21 (22), 23, and 24 may be variously adjusted by pivoting a predetermined angle in the direction in which the wire rod passes through the screws 34, 44, 54, and 64. Accordingly, the gap between the rolling rolls 21, 22, 23, and 24 is set in various ways, and thus, there is an effect of rolling a variety of wire rods without limitation in size.

Description

Tux head of rolling mill {A TURKS-HEAD OF ROLLING MILL}

TECHNICAL FIELD The present invention relates to a tux head of a rolling mill, and more particularly, to a tux head of a rolling mill having four rolling rolls for rolling a wire rod into a predetermined cross-sectional shape to produce a release wire rod.

In general, the release wire refers to a wire rod other than a concentric cross section, and the rolling production process is performed through the tux head of the rolling mill in which two pairs of rolling rolls are respectively mounted on the rolling stand. do. The tux head of such a rolling mill is classified into a driving type in which rolling rolls are driven by receiving power directly, and a non-drive type in idling by a feed force from which the wire rod exits without power transmission. Figure 1 schematically shows a conventional non-driven tux head.

Referring to FIG. 1, the tux heads of the conventional non-driven rolling mill are respectively disposed on the upper side and the lower side of the front surface of the frame 1, and the upper and lower rolling rolls 2a and 2b idle while maintaining a predetermined interval, and the frame 1. The left and right rolling rolls 2c and 2d are respectively disposed on the left and right sides of the front surface and rotated in a state where a part of the outer circumference is accommodated in the gap between the upper and lower rolling rolls 2a and 2b, respectively.

In addition, the upper and lower rolling rolls 2a and 2b and the left and right rolling rolls 2c and 2d are respectively directed in the four directions on the entire frame 1 through the roll blocks 3a, 3b, 3c and 3d. It is provided so that the position can move, and each block 3a, 3b, 3c, 3d is provided with the adjustment screw 4 so that position adjustment may be carried out in the up, down, left, and right sides of the frame 1.

Accordingly, the left and right rolling rolls 2c and 2d are respectively moved left and right through the adjusting screw 4 so that the gap g is adjusted. The gap g adjustment is performed by the upper and lower rolling rolls 2a and 2b. Is done between. On the other hand, the upper and lower rolling rolls (2a) (2b) can also be moved up and down through the adjustment screw (4), this is not for adjusting the gap of the upper and lower rolling rolls (2a) (2b), but the left and right rolling rolls (2c) This is to prevent friction with them when the 2d moves left and right.

Therefore, in the conventional tux head, the gap g is adjusted only by moving the left and right rolling rolls 2c and 2d from side to side between the top and bottom rolling rolls 2a and 2b, thereby adjusting wire gaps having various thicknesses. There is a limit to rolling.

This is because the gap g between the left and right rolling rolls 2c and 2d can be variously adjusted, while the gap between the upper and lower rolling rolls 2a and 2b is set in advance.

The present invention is to solve this problem; It is an object of the present invention to provide a tux head of a rolling mill capable of rolling a wire rod having various widths and thicknesses regardless of dimensions by improving the installation structure of the upper, lower, left and right rolling rolls.

Figure 1 schematically shows the inside of the tux head of the conventional rolling mill.

Figure 2 is a front view showing the tux head of the rolling mill according to the present invention.

3 is a perspective view showing the tux head of the rolling mill according to the present invention.

Figure 4 is an exploded perspective view extracting one of the roll support means of the tux head in accordance with the present invention.

5 is a cross-sectional view taken along the line VV of FIG. 3.

FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 4, showing the installation structure of the rolling roll and the stopper screw.

7 and 10 show the gap adjustment process of the upper rolling roll according to the present invention.

8 and 9 are enlarged views of the region of Fig. 2, showing a gap adjustment process of the left rolling roll to go along with the upper rolling roll.

* Description of the symbols for the main parts of the drawings *

10..Frame 21, 22, 23, 24. Rolling roll

30,40,50,60..Roll support means 31,41,51,61..Bracket

32,42,52,62..Roll blocks 33,43,53,63..Elastic support member

34, 44, 54, 64. Adjusting screw 70. Fixing member

80..stopper screw

The present invention for achieving this object is;

A frame which is installed on the rolling stand and which passes through the wire rod from the rear side to the front side; A tux head of a rolling mill having four roll supporting means disposed up and down and left and right in front of the frame and provided with rolling rolls for rolling wire rods, respectively;

The roll support means includes a bracket provided to protrude from the front portion of the frame; A roll block composed of a roll accommodation portion coupled to the bracket through a hinge shaft and pivotally disposed at a predetermined angle and having a rolling roll accommodated therein, and an extension portion extending from the roll accommodation portion to the edge of the frame and having a female threaded hole therethrough; ; An elastic support member installed on an extension of the roll block and elastically supporting the extension toward the frame; The roll block is pivoted in the front-rear direction through which the wire passes while the elastic support member overcomes the elastic force, and is screwed through the female threaded hole of the extension to adjust the gap between the rolling rolls. The tip is in contact with the front part of the frame. It characterized in that it comprises an adjusting screw.

In addition, the elastic support member is coupled to the frame through one end of the through-hole drilled in the extension portion and the other end of the fixed rod formed with a flange; It is disposed on the other end of the fixed rod and characterized in that it comprises a coil spring that is crimped and supported by the flange to support the extension to the front side of the frame.

In addition, the rolling roll is composed of a support shaft which is fixed at both ends on both sides of the roll receiving portion, and a roll member rotatably installed through a bearing at the central portion of the support shaft;

Both sides of the roll housing portion is provided with a pair of fixing members for fixing the roll roll to be movable in the longitudinal direction of the support shaft.

In addition, both sides of the roll accommodation portion is provided with a semi-circular recessed groove in which a part of the outer circumference of the support shaft end is seated.

The pair of fixing members are detachably fastened to both sides of the roll accommodation portion through bolts, and the cover part is formed to cover the outer circumference of the end of the support shaft seated in the concave groove.

In addition, the side of the roll receiving portion adjacent to the front end surface of the support shaft is characterized in that the stopper screw for adjusting the degree of movement of the support shaft is disposed.

In addition, the rolling rolls disposed on the roll supporting means are characterized in that they are arranged to be in contact with each other so as to contact the outer periphery and the side of the neighboring ones.

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

2 and 3, the tux head of the rolling mill according to the present invention is to roll the release wire which is transported by the external power, the frame 10 is installed on the top of the rolling stand to form an outer body, and Four roll supporting means 30 and 40 are arranged in four directions to form a 90 degree interval on the front surface of the frame 10 and provided with rolling rolls 21, 22, 23, 24 for rolling the wire rods. 50 and 60).

Frame 10 is made of a metal disc shape having a predetermined thickness, a circular through hole 11 is bored in the center portion thereof to allow the release wire to be rolled through freely.

And the four roll support means 30, 40, 50, 60 are arranged in the front and rear and left and right directions on the front portion of the frame 10 around the through hole 11, which is the front portion of the frame 10 The brackets 31, 41, 51, 61, which are provided at the hinges, are hingedly coupled to the brackets 31, 41, 51, 61, and are arranged to pivot at a predetermined angle and are rolled rolls 21, 22. The roll blocks 32, 42, 52, 62, and the roll blocks 32, 42, 52, 62, which are installed so that the 23, 24 are idle, are elastically supported toward the frame 10 side. Rolling blocks 32, 42, 52 while overcoming the elastic force of the elastic supporting members 33, 43, 53, 63 and the elastic supporting members 33, 43, 53, 63. And an adjusting screw (34) (44) (54) (64) for adjusting the clearance between the rolling rolls (21) (22) (23) and (24) by pivoting (62) in the front and rear directions through which the wire rod passes. However, their detailed structure is as follows. (On the other hand, since each of the roll supporting means 30, 40, 50, 60 differs only in the installation direction, the actual components are the same. In the following, the roll supporting means 30 provided above the front part of the frame 10 will be described.

First, the brackets 31, 41, 51 and 61 are for hinge coupling the roll block 32 to the front of the frame 10. The pair of brackets 31, 41, 51 and 61 are hinged at a 90 degree interval to the front of the frame 10. It is fixed to achieve.

3 to 5, the roll block 32 is pivotably mounted at a predetermined angle through the hinge shaft 32a in a state disposed between the brackets 31 and 61. A roll accommodation portion 32b provided with a rolling roll 21 therein, and an extension portion 32c extending from the roll accommodation portion 32b toward the edge of the frame 10 and having a female screw hole 32d therethrough. consist of. Accordingly, when the extension part 32c is lifted from the front part of the frame 10, the roll receiving part 32b draws a predetermined arc around the hinge axis 32a by the lever principle, It is pivoted toward the center side and the rolling roll 21 also reduces the gap with the neighboring ones. On the other hand, when the extension part 32c comes closer to the front part of the frame 10, the roll accommodation part 32b draws a predetermined arc around the hinge axis 32a and at the center of the frame 10. It is gradually pivoted in a direction away from this, the rolling roll 21 also has a large gap with the neighboring ones.

As described above, the elastic support member 33 supports the roll block 32 toward the frame 10 side, and has one end hole 32e bored in the extension portion 32c of the roll block 32. And a coupling rod 10a coupled to the frame 10 and having a flange 33b formed at the other end thereof, and a coil spring disposed on the other end of the fixing rod 33a and pressed against and supported by the flange 33b. 33c). One end of the fixing rod 33a is machined to fix the screw to the front surface of the frame 10. Therefore, the extension part 32c of the roll block 32 is always elastically supported toward the front side of the frame 10 by the restoring force of the coil spring 33c.

And adjusting screw 34 is screwed through the threaded hole (32d) of the roll block 32, the extension portion (32c) of the screw penetrating through, the front end thereof is installed to contact the front portion of the frame (10). In this embodiment, when the adjusting screw 34 is rotated in the clockwise direction, it gradually moves to the rear side of the extension part 32c (in the direction of arrow A in FIG. 7), and when it is rotated counterclockwise, it gradually becomes the extension part 32c. It is demonstrated that it was comprised so that it may move to the front side (arrow B direction of FIG. 10). Accordingly, when the adjusting screw 34 is rotated in the clockwise direction, it moves to the rear of the extension part 32c, whereby the extension part 32c of the roll block 32 is lifted from the front part of the frame 10. . On the other hand, when the adjusting screw 34 is rotated counterclockwise, it moves forward of the extension part 32c, and the extension part 32c of the roll block 32 comes closer to the front part side of the frame 10. .

On the other hand, the rolling roll 21 is a donut which is provided so that both ends are fixed to both side walls of the roll accommodating portion 32b and idling the bearing 21b at the center of the support shaft 21a via the bearing 21b. It consists of a roll member 21c of a shape. In addition, a pair of fixing members 70 are provided on both side walls of the roll accommodation portion 32b to fix the rolling rolls 21 in the longitudinal direction of the support shaft 21a. That is, in order to fix while moving the rolling roll 21, semicircular concave grooves 32f in which a part of the outer circumference of the end of the support shaft 21a is provided are provided on both side walls of the roll accommodation portion 32b, and a pair of fixings are provided. The member 70 is detachably fastened to both side walls of the roll accommodation portion 32b via bolts 71, and a semicircular cover portion 72 facing the concave groove 32f is formed therein. Therefore, when the fixing member 70 is firmly fixed to both sides of the roll receiving portion 32b through the bolt 71, the outer peripheral rest of the end of the support shaft 21a on which the cover portion 72 is seated in the concave groove 32f. The rolling roll 21 is rotatably installed to cover the portion. On the other hand, when the bolt 71 is slightly loosened, the end of the support shaft 21a is loosely fixed, so that the rolling roll 21 can move in the longitudinal direction of the support shaft 21a.

In addition, reference numeral "W" in FIG. 5 indicates a wire rod having a rectangular cross section passing between the rolling rolls 21, 22, 23, and 24.

5 and 6, a stopper screw for adjusting the degree of movement of the support shaft 21a is provided on one side wall of the roll accommodation portion 32b adjacent to the front end surface of the support shaft 21a. 80) is arranged. Therefore, if the rolling roll 21 is moved after the stopper screw 80 is spaced apart from the end surface of the support shaft 21a, the rolling roll 21 can move until it comes into contact with the stopper screw 80. For this operation, the rolling rolls 21, 22, 23, 24 arranged on the four roll supporting means 30, 40, 50, 60 are brought into contact with the outer periphery and the sides of the neighboring ones. It is preferable to arrange | position in a mutually shifting direction. On the other hand, since these stopper screws 80 are configured in the same direction on the side walls of each of the roll blocks 32, 42, 52, and 62, duplicate description thereof will be omitted.

Next, the operation of the tux head according to the present invention configured as described above and the effects thereof will be described.

First, the wire rod W having a rectangular cross section is supplied to or pulled from the through hole 11 of the frame 10 through a feeding device not shown in the rolling mill. Therefore, the upper and lower sides and the left and right sides of the wire rod W passing between them as the rolling rolls 21, 22, 23, 24 disposed on the four roll blocks 32, 42, 52 and 62 rotate. Applying a pressing force to the wire rod (W) due to this is rolled out.

On the other hand, when the cross-sectional size of the wire rod (W) is different, the four roll supporting means 30, 40, 50, 60 are appropriately operated so that the rolling rolls 21, 22, 23, 24 are in between. To adjust the gap.

That is, when moving the rolling roll 21 disposed on the upper side of the frame 10 to the lower side, as shown in Figure 7, when the adjusting screw 34 is rotated in the clockwise direction, which is an elastic support member 33 Is gradually moved to the rear side of the extension part 32c (arrow A direction), while winning the elastic force of (). Therefore, the extension part 32c of the roll block 32 is lifted from the front part of the frame 10, and the roll accommodation part 32b of the frame 10 draws a predetermined arc around the hinge axis 32a. It pivots toward the center side (arrow C direction), which causes the rotational center of the rolling rolls 21 to gradually descend to reduce the gap with the lower rolling rolls 22.

At this time, as shown in FIG. 8, the bolts 71 of the fixing member 70 for fixing the left rolling roll 23 in contact with the outer circumference of the upper rolling roll 21 are loosened and the left rolling roll 23 is loosened. It is preferable to maintain the gap G by the interval at which the tip of the support shaft 23a and the stopper screw 80 are to be set.

As a result, as shown in Fig. 9, the upper rolling roll 21 gradually descends to the lower side (arrow E direction) and the gap with the lower rolling roll 22 decreases, and the left rolling roll 23 also descends to the lower side. The gap is adjusted at the same time. At this time, when the left rolling roll 23 is lowered and the tip of the support shaft 23a and the stopper screw 80 come into contact with each other, the upper rolling roll 21 as well as the left rolling roll 23 is no longer present. It is not adjusted. In this state, when the bolt 71 of the fixing member 70 is firmly tightened, the gap between the left rolling roll 23 and the upper rolling roll 21 is maintained in an adjusted state.

On the other hand, in the case where the rolling roll 21 disposed above the frame 10 is to be moved upward, as shown in FIG. 10, when the adjusting screw 34 is rotated counterclockwise, the extension portion ( It is gradually moved to the front side of 32c) (arrow B direction). Therefore, the extension part 32c of the roll block 32 is moved toward the front part side of the frame 10 by the elastic restoring force of the elastic support member 33, and the roll accommodation part 32b is centered on the hinge axis 32a. While drawing a predetermined arc, it pivots from the center of the frame 10 to the edge side (arrow D direction). As a result, the rotational center of the rolling roll 21 gradually rises to increase the gap with the lower rolling roll 22.

As described above, the operation of the upper rolling roll 21 has been described as an example, but in addition to the lower rolling rolls 22 and the left and right rolling rolls 23 and 24, the roll blocks 42, 52 and 62 are rotatably installed. By operating the adjusting screws 44, 54, 64 clockwise or counterclockwise, they also adjust the gap with the neighboring ones in substantially the same process as the upper rolling rolls 21, thereby relating to the dimensions. The wire rod (W) made of various widths and thicknesses can be rolled without.

As described in detail above; According to the tux head of the rolling mill according to the present invention, the rolling rolls are rotatably arranged, respectively, and roll rolls arranged in four directions on the front portion of the frame are pivoted at a predetermined angle in a direction in which the wire rod passes through the adjusting screw to neighboring rolling rolls. Various gaps can be adjusted. Accordingly, the gap between the rolling rolls is variously set, and thus there is an effect of rolling a variety of wire rods without limitation in size.

Claims (6)

A frame which is installed on the rolling stand and which passes through the wire rod from the rear side to the front side; In the tux head of the rolling mill is arranged in the front and rear and left and right sides of the frame and provided with four roll supporting means each provided with a rolling roll for rolling the wire rod; The roll supporting means (30) (40) (50) (60); Brackets (31) (41) (51) (61) provided to protrude from the front portion of the frame (10); A roll receiving portion 32b coupled to the brackets 31, 41, 51, 61 through a hinge shaft 32a and pivotally disposed at a predetermined angle, and having the rolling roll 21 accommodated therein; A roll block 32 formed of an extension part 32c extending from the roll accommodation part 32b to an edge of the frame 10 and having a female screw hole 32d therethrough; A fixed rod 33a having one end coupled to the frame 10 through a through hole 32e drilled through the extension portion 32c of the roll block 32 and having a flange 33b formed at the other end thereof, The roll block 32 includes a coil spring 33c disposed at the other end of the rod 33a and pressed against and supported by the flange 33b to support the extension part 32c toward the front side of the frame 10. An elastic support member 33 for elastically supporting the extension portion 32c of the side toward the frame 10; The roll block 32 is pivoted in the front-rear direction through which the wire rod passes while the elastic support force of the elastic support member 33 is passed to adjust the gap between the rolling rolls 21, 22, 23, and 24. Tux head of the rolling mill, characterized in that the screw threaded through the female threaded hole (32d) of the extension portion (32c) and the tip includes an adjusting screw (34) which operates while contacting the front portion of the frame (10). . delete The method of claim 1, The rolling rolls 21, 22, 23, and 24 have support shafts 21a at which both ends are fixed to both sides of the roll accommodation portion 32b, and bearings 21b at the central portions of the support shafts 21a. It consists of a roll member (21c) rotatably installed through; Tux heads of the rolling mill, characterized in that a pair of fixing members 70 for fixing the rolling roll 21 to be movable in the longitudinal direction of the support shaft 21a on both sides of the roll accommodation portion 32b. . The method of claim 3, Semicircular concave grooves 32f are provided on both sides of the roll accommodation portion 32b on which a part of the outer circumference of the end of the support shaft 21a is seated. The pair of fixing members 70 are detachably fastened to both sides of the roll receiving portion 32b through bolts 71, and the pair of fixing members 70 is attached to the end of the support shaft 21a seated in the concave groove 32f. Tux head of the rolling mill, characterized in that the cover portion 72 is formed to cover the rest of the outer circumference. The method of claim 3, Tux of the rolling mill, characterized in that the stopper screw 80 for adjusting the movement degree of the support shaft 21a is disposed on the side of the roll receiving portion 32b adjacent to the front end surface of the support shaft 21a. head. The method of claim 3, The rolling rolls 21, 22, 23 and 24 disposed on the roll supporting means 30, 40, 50 and 60 are arranged to be in contact with each other so as to contact the outer circumference and side surfaces of the neighboring ones. Tux head of rolling mill.