KR100405627B1 - A polygon turks - head of rolling mill - Google Patents

Abstract

The present invention relates to a multiple tux head of a rolling mill, and an object thereof is to allow roll holders having roll rolls installed in a frame to be detachably attached to a frame to share parts, and to facilitate their detachment.

To this end, according to the polygonal tux head of the rolling mill according to the present invention, a group of tap holes 42a to 42d for fastening a plurality of roll holders 30 to the front surface of the frame 10 at intervals of 60 degrees, 90 degrees, and 72 degrees As a result, the roll holders 30 may be arranged in a triangular, square, pentagonal, or hexagonal manner. Accordingly, since the roll holders 30 can be arranged at various angles in one frame 10, wire rods having various cross-sections can be rolled, thereby improving work productivity and reducing equipment costs. have.

Description

Multiple tux head of rolling mill {A POLYGON TURKS-HEAD OF ROLLING MILL}

TECHNICAL FIELD The present invention relates to a tux head of a rolling mill, and more particularly, to a multiple tux head of a rolling mill in which roll holders having a rolling roll are arranged in a plurality in order to roll the wire rod into a predetermined cross-sectional shape.

In general, the release wire refers to a wire rod other than a concentric cross section, and its rolling production process is carried out through a tuxes head of a rolling mill in which a plurality of rolling rolls are arranged at regular intervals. Proceed. 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-driving type in which idling is carried out by a feed force from which the wire rod exits without power transmission. Figure 1 schematically shows a square tux head of a conventional non-driven type.

Referring to Figure 1, the square tux head of the conventional non-driven type rolling mill is disposed on the upper side and the lower side of the front of the frame 1, respectively, and the upper and lower rolling rolls (2a) (2b) and idling while maintaining a predetermined interval, 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.

Further, the upper and lower rolling rolls 2a and 2b and the left and right rolling rolls 2c and 2d are respectively arranged in four directions while maintaining a 90 degree interval through the roll blocks 3a, 3b, 3c and 3d, respectively. Position movement is possible, 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. That is, the left and right rolling rolls 2c and 2d are moved left and right through the adjusting screws 4 so that the gap g thereof is adjusted.

However, in the conventional tux head, since the roll blocks 3a, 3b, 3c, and 3d are arranged in a quadrangular shape on the front of the frame 1, only the wire rod having a rectangular cross section can be processed.

Therefore, if you want to process a wire rod having a triangular, pentagonal or hexagonal cross section in addition to the square cross-section, the entire tux head must be replaced in the rolling mill, thereby reducing the productivity of work as well as a significant equipment cost.

The present invention is to solve this problem; It is an object of the present invention to provide a multiple tux head of a rolling mill capable of rolling production of wire rods having various cross sections by changing only the arrangement of roll holders having a rolling roll on the front of the frame.

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

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

Figure 3 is an exploded perspective view showing a part of the roll holder fastening structure of the polygonal tux head according to the present invention.

4 is a front view of the frame according to the present invention.

5 is a rear perspective view of the roll holder according to the present invention.

Figure 6 shows a hexagonal arrangement of the polygonal tux head in accordance with the present invention.

Figure 7 shows a five-position arrangement of the polygonal tux head in accordance with the present invention.

8 shows a quadrangular arrangement structure of the multiple tux heads according to the present invention.

Figure 9 shows a triangular arrangement of the polygonal tux head in accordance with the present invention.

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

10.Frame 20.Rolling roll

21. Tapered surface 30. Roll holder

41..Mounting bolt 42a ~ 42d..Tapped hole

51 .. Grooving groove 52 .. Coupling protrusion

The present invention for achieving this object is;

It is installed on the rolling stand and has a frame formed with an open part so that the wire passes through the center part, a plurality of roll holders disposed on the frame and provided with rolling rolls for rolling the wire, respectively, and a polygonal space is formed between the rolling rolls. In the multiple tux head of the rolling mill with fastening means for arranging the roll holders at regular intervals on the front of the frame,

The fastening means includes a plurality of mounting bolts penetrating the roll holder, and a plurality of tab holes machined in the front of the frame so that the ends of the mounting bolts are coupled,

The tap holes are machined at intervals of 60 degrees, 90 degrees, and 72 degrees, so that the roll holders can be arranged in a triangular, square, pentagonal, or hexagonal shape.

In addition, both edges of the rolling rolls are machined into tapered surfaces having a predetermined angle so as to be in contact with the edges of the neighbors when the roll holders are arranged in a polygon.

In addition, the tapered surface angle of the rolling roll is characterized in that 120 degrees when the roll holders are arranged in a triangle, 72 degrees when the roll holders are arranged in a pentagon, 60 degrees when the roll holders are arranged in a hexagon.

In addition, the temporary assembly means for temporarily assembling the roll holder is provided between the frame and the roll holder.

In addition, the temporary assembling means is characterized in that it comprises a circular temporary assembling groove processed to have a predetermined diameter on the front portion of the frame, and the engaging projection provided in the shape of an arc on the back of the roll holder to be fitted into the temporary assembling groove. .

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

2 and 3, the polygonal tux head of the rolling mill according to the present invention is to roll the release wire is transferred to the external power, the frame 10 is installed on the top of the rolling stand to form an outer body, A plurality of roll holders 30, which are arranged at regular intervals on the front surface of the frame 10 and provided with rolling rolls 20 for rolling the wire rods, and a polygonal space between the rolling rolls 20 are formed. Fastening means (41) (42a to 42d) for arranging the roll holders 30 in the front portion of the frame 10 to be formed, and pre-assembly for pre-assembling the roll holder 30 to the frame (10) Means 51 and 52 are provided.

The roll holders 30 are detachably installed through the fastening means 41 (42a to 42d), and there is a roll block 31 in which the rolling roll 20 is rotatably installed through a bearing member (not shown). It is built in. The cover plate 32 for covering the roll block 31 is bolted to an upper portion of the roll holder 30, and through holes 33 are drilled at both edges of the roll holder 30, respectively. In the embodiment of the present invention, the four through holes 33 are drilled on both sides of the roll holder 30, and the mounting bolt 41 to be described later penetrates. In addition, both edges of the rolling rolls 20 are machined into a tapered surface 21 having a predetermined angle so as to be in contact with the edges of the neighbors when the roll holders 30 are arranged in a polygon. As such, the processing of the edge of the rolling roll 20 into the tapered surface 21 is to prevent left and right rolling of the rolling rolls 20 when the release wire is rolled.

On the other hand, the roll block 31 is arranged to be slidably movable in the longitudinal direction in the roll holder 30, for adjusting the position thereof is coupled to the edge of the roll holder 30 by screwing the adjustment screw extending to the outside ( 34). Accordingly, the position of the rolling roll 20 together with the roll block 31 is adjusted according to the direction in which the adjusting screw 34 is rotated.

The frame 10 is made of a metal disc having a predetermined thickness, and a circular opening 11 is formed at the center thereof so that the release wire to be rolled through can be allowed to pass through.

In addition, as described above, the fastening means is for arranging the roll holders 30 at regular intervals on the front surface of the frame 10, in the embodiment of the present invention, the through hole 33 of the roll holder 30. It includes a plurality of mounting bolts (41) through each of the, and a plurality of tab holes (42a ~ 42d) processed in the front of the frame 10 to be coupled to the front end of the mounting bolts (41). Therefore, the tab holes 42a to 42d should be machined to match the through holes 33 of the roll holder 30.

Referring to FIG. 4, four of these tap holes 42a to 42d form a group, and one roll holder 30 is fastened through four mounting bolts 41 to the tab holes 42a to 42d. The group of 42d) is machined at 60, 90 and 72 degree intervals. Accordingly, the roll holders 30 may be arranged in a triangular, square, pentagonal, or hexagonal portion on the front surface of the frame 10.

That is, five more taphole 42b groups are processed on the front portion of the frame 10 to form a 60-degree interval, starting from a group of four tapholes 42a processed in the upper portion of the center. It is possible to arrange at intervals of 60 degrees (in the case of a hexagonal arrangement) or 120 degrees (in the case of a hexagonal arrangement).

In addition, the front of the frame 10, three groups of tap holes (42c) are processed to form a 90-degree interval, starting from the group of four tap holes (42a) processed in the upper center, so that the roll holders 30 It can be arranged at intervals of 90 degrees (for square placement).

In addition, at the front of the frame 10, four groups of tap holes 42d are further processed to form a 72-degree interval, starting from a group of four tap holes 42a processed in the upper portion of the center. It can be placed at intervals of 72 degrees (in the case of a pentagram).

Meanwhile, referring to FIGS. 3 and 5, the roll holder 30 is temporarily assembled to facilitate the fastening operation of the mounting bolt 41, and is formed to have a predetermined diameter at the front surface of the frame 10. And a coupling protrusion 52 provided on the rear surface of the roll holder 30 so as to be fitted into and coupled to the temporary assembly groove 51. The provisional assembling groove 51 is processed concentrically with the center of the opening portion 11, and has a predetermined depth in the front portion of the frame 10. The coupling protrusion 52 is formed in an arc shape having the same curvature as the thickness of the provisional assembling groove 51 so that the front surface of the frame 10 and the rear surface of the roll holder 30 are in close contact with each other and there is no shaking in the radial direction.

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

First of all, six roll holders 30 are arranged at six angles on the front surface of the frame 10 through six groups of tap holes 42a and 42b (see FIG. 4), which are processed at 60 degree intervals. It describes the operation of, as shown in FIG.

In the case of such a hexagonal roll holder 30, the angle θ of the tapered surface 21 processed on both edges of the rolling rolls 20 is 60 degrees. Therefore, a hexagonal space can be formed between the rolling rolls 20, and the six rolling rolls 20 are kept in close contact with each other through the tapered surface 21. This is done via adjustment screw 34.

In this state, when the wire is continuously supplied to the hexagonal space between the rolling rolls 20, the six rolling rolls 20 rotate simultaneously and apply a pressing force to the wires passing therebetween, whereby the wire is hexagonal. Roll out to have a cross section.

Next, five roll holders 30 are arranged at five angles at the front of the frame 10 at five angles through a group of tapped holes 42a and 42d (see FIG. 4). It describes the operation of, as shown in FIG.

As described above, in the case of the roll holder 30 disposed at a five angle on the front surface of the frame 10, the angle θ of the tapered surface 21 processed at both edges of the rolling rolls 20 is 72 degrees. Therefore, while a pentagonal space is formed between the rolling rolls 20, the five rolling rolls 20 are maintained in close contact with each other through the tapered surface 21.

When the wire rod is continuously supplied to the pentagonal space between the rolling rolls 20 in this state, the five rolling rolls 20 simultaneously rotate and apply a pressing force to the wire rod passing between them. Thus, the wire rod is rolled to have a pentagonal cross section.

Next, four roll holders 30 are arranged at four angles at 90 degree intervals in the front of the frame 10 through a group of tap holes 42a and 42c (see FIG. 4) which are processed at 90 degree intervals. It describes the operation of, as shown in FIG.

Referring to FIG. 8, in the case of the roll holder 30 disposed at an angle to the front surface of the frame 10, the tapered surface may be processed at 90 degrees on both edges of the rolling rolls 20. In the examples, no processing was performed. This is because the rolling rolls 20 arranged in up, down, left and right four directions can be adjusted to overlap each other through the adjusting screw 34.

When the wire rod is continuously supplied to the four-sided space between the rolled rolls 20 arranged in this way, the four rolling rolls 20 simultaneously rotate and apply a pressing force to the wire rod passing between them. Rolled to have a square cross section.

Next, three roll holders 30 are arranged at three angles with 120 degree intervals on the front surface of the frame 10 through a group of tapped holes 42a and 42b (see FIG. 4), which are processed at 60 degree intervals. It describes the operation of, as shown in FIG.

9, in the case of a triangular tux head, the group of tap holes 42a and 42b processed at 60 degree intervals is commonly used. In addition, in the case of the triangular roll holder 30, the angle (theta) of the tapered surface 21 processed by the both edges of the rolling rolls 20 is 120 degree | times. Therefore, a triangular space can be formed between the rolling rolls 20, and the three rolling rolls 20 are kept in close contact with each other through the tapered surface 21.

When the wire is continuously supplied to the triangular space between the rolling rolls 20 in this state, the three rolling rolls 20 simultaneously rotate and exert a pressing force on the wire passing through them, thereby the wire is triangular Rolled to have a cross section.

As such, when the arrangement interval of the roll holder 30 having the rolling rolls 20 is changed to triangular, square, pentagonal and hexagonal, the wire 10 having a common cross-sectional shape can be easily rolled while using the frame 10 in common. have.

As described in detail above; According to the polygonal tux head of the rolling mill according to the present invention, a group of tap holes for fastening a plurality of roll holders to a frame front part is processed at intervals of 60 degrees, 90 degrees, and 72 degrees, so that the roll holders may be triangular, square, pentagonal, or It can be arranged in a hexagon. Accordingly, since roll holders can be arranged in one frame at various angles, wire rods having various cross sections can be rolled, thereby improving work productivity and reducing equipment costs.

Claims (5)

It is installed on the rolling stand and installed in the center part of the frame formed with an opening to pass the wire rod, a plurality of roll holders are arranged on the frame and each roll roll for rolling the wire rod, and a polygonal space between the rolling rolls In the multiple tux head of the rolling mill having a fastening means for arranging the roll holders at regular intervals on the front surface of the frame to form; The fastening means includes a plurality of mounting bolts 41 passing through the roll holder 30 and a plurality of tab holes 42a processed on the front surface of the frame 10 so that the front ends of the mounting bolts 41 are coupled to each other. Including 42d), the tab holes 42a to 42d are processed at intervals of 60 degrees, 90 degrees, and 72 degrees to arrange the roll holders 30 in a triangular, square, pentagonal, or hexagonal manner. Both edges of the rolling rolls 20 are processed into a tapered surface 21 having a predetermined angle so as to be in contact with the edges of neighboring ones when the roll holders 30 are arranged in a polygon. The multiple tux heads of the rolling mill, characterized in that provisional assembly means for temporarily assembling the roll holder 30 is provided between the frame 10 and the roll holder 30. delete The method of claim 1, Taper surface 21 angle (θ) of the rolling roll 20, 120 degrees when the roll holders 30 are arranged in a triangle; 72 degrees when the roll holders 30 are arranged in a pentagon, Polygonal tux head of the rolling mill, characterized in that 60 degrees when the roll holders are arranged in a hexagon. delete The method of claim 1, The temporary assembly means A circular temporary assembling groove 51 processed to have a predetermined diameter on the front portion of the frame 10, The multiple tux heads of the rolling mill, characterized in that it comprises a coupling protrusion (52) provided in the shape of an arc on the rear surface of the roll holder (30) to be fitted into the temporary assembly groove (51).