KR101242980B1 - Rolling roll for steel press - Google Patents

Rolling roll for steel press Download PDF

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Publication number
KR101242980B1
KR101242980B1 KR1020100133190A KR20100133190A KR101242980B1 KR 101242980 B1 KR101242980 B1 KR 101242980B1 KR 1020100133190 A KR1020100133190 A KR 1020100133190A KR 20100133190 A KR20100133190 A KR 20100133190A KR 101242980 B1 KR101242980 B1 KR 101242980B1
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KR
South Korea
Prior art keywords
ball
rolling
spacer ring
roll body
ring
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Application number
KR1020100133190A
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Korean (ko)
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KR20120071589A (en
Inventor
김원봉
Original Assignee
주식회사 포스코
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Priority to KR1020100133190A priority Critical patent/KR101242980B1/en
Publication of KR20120071589A publication Critical patent/KR20120071589A/en
Application granted granted Critical
Publication of KR101242980B1 publication Critical patent/KR101242980B1/en

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)

Abstract

A rolling roll is disclosed. Rolling roll according to an aspect of the present invention is a roll body mounted to the rolling mill to drive rotation; A plurality of balls formed in the roll body in a plurality of balls formed in a separable form and rolling a material; And a plurality of spacer rings inserted into the roll body so as to be positioned at the side portions of the ball portion and tightly supported to prevent rotation of the ball portion.

Description

Rolling Roll {ROLLING ROLL FOR STEEL PRESS}

The present invention relates to a rolling roll used in the wire rod rough rolling process.

In general, as shown in FIG. 1, as shown in FIG. 1, the rolled material P heated in the heating furnace 100 for each steel type is selected between the roughing study section 112, the medium roughing study section 114, and the finishing pressure study section (or the middle section). After the finishing pressure study, it is formed into the ball size of the wire rod through the finishing pressure study (116), cooled in the water cooler 120, and then wound up by the spiral coil 122, and the subsequent process through the conveyor roller 124. Go through a series of wire rod rolling process.

In the rough rolling process of such wire rods, a plurality of rolling rolls are installed adjacent to each other between the roughing studies, and hot wire rolling is performed while the rolled material passes these rolling rolls.

On the other hand, since the rolling rolls are easily made by contact with the rolling material, the rolling rolls have been developed and used in recent years to increase the surface hardness of the rolling rolls to prevent wear of the rolling rolls, thereby improving productivity. have.

2 is a front view of a rolling roll according to the prior art, Figure 3 is a cross-sectional view of the rolling roll according to the prior art.

Referring to FIG. 2, the rolling roll 200 forms a roll body 210 as a cast steel, and has a ball portion 220 having a ball 222 on the outside of the roll body 210 in direct contact with the rolled material. It is installed detachably.

The rolling roll 200 may wear the ball portion 220 in the process of rolling the rolled material, this worn ball portion 220 is made to be used to replace it because it causes damage to the product.

In addition, the mold portion 220 is made of a material of tungsten-carbide (W-C) of the wire rod is in direct contact with the hot wire is made of a tungsten carbide (W-C), it is assembled to the roll body 210 of the cast steel.

In addition, the rolling roll 200 forms a support protrusion 212 at the center portion of the roll body 210, and two balls 220 are combined from both ends to be tightly fixed by the fixing ring 230.

By the way, the rolling roll 200 is subjected to excessive friction load during the rolling of the hot wire continuous thermal expansion may occur in the mold portion 220, accordingly, the mold portion 220 from the roll body 210 A situation may arise where the normal hot wire is not rolled to relax.

In addition, in the related art, the fixing bolt 232 is installed on the fixing ring 230 so that the ball part 220 is tightly adhered to the roll body 210, but the rolling load and the vibration are continuously repeated during the hot wire rolling process. As received, the fixing force by the fixing bolt may be relaxed, and thus the driving force of the ball part may become unstable.

In addition, the conventional rolling roll has a structure that is coupled to the support protrusion formed in the central portion of the roll body has a limit in expanding the number of the ball portion, the work time is increased during replacement, repair, maintenance work of the ball portion and the downtime of the equipment is also increased It is a factor which reduces productivity.

An embodiment of the present invention improves the structure in which the slip is relaxed by the friction load generated during the rolling process of the rolled material, and improves the structure in which slip occurs, so that the number of installation of the same ball can be increased, thereby replacing, repairing, and maintaining the ball. It is an object of the present invention to provide a rolling roll that can reduce the work time required for work.

Rolling roll according to an aspect of the present invention is a roll body mounted to the rolling mill to drive rotation; A plurality of balls formed in the roll body in a plurality of balls formed in a separable form and rolling a material; And a plurality of spacer rings inserted into the roll body so as to be respectively positioned at the side portions of the ball portion, the spacer rings being tightly supported to prevent rotation of the ball portion, and one side of the roll body being closely supported by one side of the ball portion or the spacer ring. It is provided integrally, the other side of the roll body is formed with a spiral portion, the ball portion or the spacer ring is provided to be assembled in close contact between the support protrusion and the fixed ring by a fixing ring coupled to the spiral portion, both sides of the ball portion parallel A baller-side taper formed inclined in a shape corresponding to the quadrilateral, a spacer ring-side taper formed inclined in a shape corresponding to the parallelogram in parallel with the ball-shaped taper in the side portion of the spacer ring, and a side portion of the support protrusion Supporting stones formed inclined to correspond to the tapered portion of the ball portion or the tapered portion of the spacer ring A side taper part is included.

delete

In addition, the fixing ring may further include a plurality of fixing bolts to be in close contact with the side of the ball or the spacer ring.

delete

In addition, the tapered portion side taper portion, the spacer ring side tapered portion and the support protrusion side tapered portion may be formed to be inclined at an angle of 0.2 to 0.5 degrees.

In addition, the side of the fixing ring may further include a fixed ring side taper formed inclined corresponding to the ball-shaped side tapered portion or the spacer ring side tapered portion.

According to one embodiment of the present invention, the number of balls can be increased by installing a plurality of balls and spacer rings in the roll body, so that the number of balls can be increased, thus requiring replacement, repair, and maintenance of the balls. Reduced working time can improve productivity, and reduce the work load of the worker due to replacement of the mold part. In addition, the plurality of balls and the spacer ring is made of a structure in which the bonding force is maintained by the fixing ring coupled to one side can facilitate the disassembly and replacement. In addition, it is possible to prevent the slip of the ball and the spacer ring is installed in the roll body portion can be transported and rolled the rolled material stably, to prevent increased wear and rolling failure, thereby improving the quality of the rolled products You can. In addition, as a plurality of molds having an increased hardness of the surface may be installed, the rough rolling process of the wire rod may be rapidly performed.

1 is a process chart showing a wire rod rolling process.
2 is a front view of a rolling roll according to the prior art.
3 is a cross-sectional view of a rolling roll according to the prior art.
4 is a front view of a rolling roll according to an embodiment of the present invention.
5 is a cross-sectional view of a rolling roll according to an embodiment of the present invention.
Figure 6 is an exploded front view showing a rolling roll according to an embodiment of the present invention.
Figure 7 is an enlarged front view showing the ball portion of the rolling roll according to an embodiment of the present invention.
Figure 8 is an enlarged front view showing the spacer ring of the rolling roll according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

4 is a front view of a rolling roll according to an embodiment of the present invention, Figure 5 is a cross-sectional view of a rolling roll according to an embodiment of the present invention. In addition, Figure 6 is a front view showing the decomposition of the rolling roll according to an embodiment of the present invention.

4 to 6, the rolling roll 1 according to the present embodiment can carry out hot wire rolling while continuously transporting the rolled material.

This rolling roll 1 may include a roll body 10 which is operably mounted to the rolling mill. The roll body 10 is rotated by the ends of both sides are respectively installed in the rolling mill. For example, in the present embodiment, the roll body 10 may be made of cast steel.

In addition, the roll body 10 may be detachably assembled with a plurality of balls 20 formed with a plurality of balls 22 so as to roll the rolled material.

In the rolling roll 1 of the present embodiment, the ball 22 formed in the ball 20 is also called a caliber, and this rolling roll 1 is inserted into the ball 22 of the ball 20. The material can be pressed to move and molded to have a desired diameter.

In addition, the mold 20 may be molded into a product having excellent hardness, such as tungsten-carbon, to withstand the abrasion generated during continuous bonding of the rolled material to a portion where direct contact with the rolled material occurs.

In the present embodiment, a plurality of balls 20 may be formed. In addition, a plurality of spacer rings 30 may be installed between the plurality of balls 20 to support the side surfaces of the balls 20 in close contact with each other.

The spacer ring 30 is inserted into the roll body 10 in a state interposed between the balls 20, thereby maintaining a space between the balls 20 and other adjacent balls at a constant interval.

In addition, the spacer ring 30 may be provided to be in close contact with the side portion of the mold 20 to prevent rotation of the mold 20.

On the other hand, the roll body 10 is provided with a bearing portion 12 for stably mounted at both ends of the rolling mill, the portion to which the ball portion 20 is assembled is formed to have a diameter larger than the diameter of the bearing portion 12 Can be.

Then, one side of the roll body 10 may be integrally formed with a support protrusion 14 for supporting one side of the ball portion 20 when the ball portion 20 is coupled.

In addition, the spiral portion 16 may be formed on the other side of the roll body 10. In addition, the roll body 10 may be coupled to the spiral portion 16 with a fixing ring 40 for fixing them in the state where the ball portion 20 or the spacer ring 30 is inserted.

Fixing ring 40 may be made to be in close contact with one side of the ball portion 20 or the spacer ring 30.

In addition, a plurality of fastening holes are formed in the fixed ring 40 along the circumferential direction, and a plurality of fastening bolts 42 in close contact with the side surface of the ball portion 20 or the spacer ring 30 may be installed through the fastening holes. Can be.

In this embodiment, the fixing bolt 42 is fastened to the fastening hole of the fixing ring 40 and the first fixing bolt 42a and the first fixing bolt to contact and support the ball 20 or the spacer ring 30, A second fixing bolt 42b fastened to the fastening hole in the fastened state 42a may be included. When the first fixing bolt 42a is loosened due to vibration generated during hot rolling, the fixing bolt 42 of this structure is engaged with the second fixing bolt 42b and is prevented from loosening. It is made of a structure.

On the other hand, the rolling roll 1 of the present embodiment may be provided with a slip preventing structure for preventing the rotation of the ball portion 20 and the spacer ring 30.

For example, the slip prevention structure includes a spacer formed on the side portion of the ball portion 20 so as to be inclined, and a spacer formed to be inclined in correspondence with the ball portion side tapered portion 24 on the side portion of the spacer ring 30. It may be made by the ring side taper portion (32).

7 and 8 are an enlarged front view showing the ball portion and the spacer ring of the rolling roll according to an embodiment of the present invention, referring to this in detail as follows.

That is, the ball-shaped side taper 24 inclined at a predetermined angle sigma may be formed on the side surface of the ball-shaped portion 20. Accordingly, the section 20 may be formed in a parallelogram with a cross section in the longitudinal direction due to the section side taper 24.

In addition, the spacer ring side taper portion 32 formed on the spacer ring 30 is formed to be inclined in parallel with the ball portion side taper portion 24, and thus the cross section in the longitudinal direction may be formed in a parallelogram.

As described above, when the slip portion 20 and the spacer ring 30 are slipped, the tapered portions 24 and 32 may be engaged with each other, and thus the slip may be prevented from coming into close contact with each other.

In this embodiment, the ball-shaped side tapered portion 24 and the spacer ring-side tapered portion 32 may be formed to be inclined at an angle of 0.2 to 0.5 degrees in consideration of the diameter of the rolling roll, and according to the change in the diameter of the rolling roll It is also possible to adjust the picture angle.

In addition, in the present embodiment, the rolling roll 1 may have spacer rings 30 disposed at both sides of the ball part 20, and spacer rings 30 disposed at each end thereof may support the roll body 10. It may be in close contact with the protrusion 14 and the fixing ring 40 to prevent rotation.

To this end, the support protrusion 14 of the roll body 10 may be provided with a support protrusion side taper portion 14a formed to be inclined in correspondence with the taper portion 32 of the spacer ring side.

On the other hand, in the present embodiment, the fixing ring 40 is made to support the adjacent spacer ring 30 by the fixing bolt 42, the side portion of the fixing ring 40 without the fixing bolt 42 spacer ring 30 It may also be provided to be in close contact with the support).

To this end, the side of the fixing ring 40 may be further formed with a fixed ring side taper formed inclined corresponding to the spacer ring side tapered portion (32).

The present invention is not limited to the above-described embodiment and the accompanying drawings, and it is possible to substitute, modify, and change various forms within the scope of the technical spirit of the present invention described in the claims. It will be self-evident to those who have knowledge.

1: rolling roll 10: roll body
12: bearing part 14: support protrusion
14a: support protrusion side taper part 16: spiral part
20: ball part 22: ball
24: ball portion side taper portion 30: spacer ring
32: spacer ring side taper portion 40: fixing ring
42: fixing bolt

Claims (6)

A roll body mounted on the rolling mill to drive rotation;
A plurality of balls formed in the roll body in a plurality of balls formed in a separable form and rolling a material; And
And a plurality of spacer rings inserted into the roll body so as to be positioned at the side portions of the ball portion and tightly supported to prevent rotation of the ball portion.
One side of the roll body is integrally provided with a support protrusion for one side of the ball or the spacer ring is tightly supported,
The other side of the roll body is formed with a spiral portion,
The ball portion or the spacer ring is provided to be assembled closely between the support protrusion and the fixing ring by a fixing ring coupled to the spiral portion,
A baller portion-side taper portion in which both side portions of the ball portion are inclined in a shape corresponding to the parallelogram;
A spacer ring side taper portion in which both side surfaces are inclined in a shape corresponding to the parallelogram in a side portion of the spacer ring in correspondence with the tapered portion side;
And a support protrusion side tapered portion formed to be inclined in correspondence with the ball-shaped side tapered portion or the spacer ring-side tapered portion. delete The method according to claim 1,
Rolling rolls are provided on the fixing ring further comprises a plurality of fixing bolts in close contact with the side of the ball portion or the spacer ring. delete The method according to claim 1,
And said ball portion side taper portion, said spacer ring side tapered portion and said support protrusion side tapered portion are formed obliquely at an angle of 0.2 to 0.5 degrees. The method according to claim 1,
Rolling roll further comprising a fixed ring side tapered portion formed to be inclined in correspondence with the ball-shaped side tapered portion or the spacer ring side tapered portion in the side portion of the fixing ring.
KR1020100133190A 2010-12-23 2010-12-23 Rolling roll for steel press KR101242980B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100133190A KR101242980B1 (en) 2010-12-23 2010-12-23 Rolling roll for steel press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100133190A KR101242980B1 (en) 2010-12-23 2010-12-23 Rolling roll for steel press

Publications (2)

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KR20120071589A KR20120071589A (en) 2012-07-03
KR101242980B1 true KR101242980B1 (en) 2013-03-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101595376B1 (en) 2016-01-14 2016-02-26 박은수 Assembly Structure Of Roller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107497858A (en) * 2017-08-10 2017-12-22 浙江恒成硬质合金有限公司 A kind of hard alloy composite roll

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449302U (en) * 1987-09-17 1989-03-27
KR0120720Y1 (en) * 1995-06-23 1998-08-01 김만제 Composite roll for roughing mill of wire
JP2000288609A (en) 1999-04-08 2000-10-17 Mitsubishi Materials Corp Rolling roll
KR100782751B1 (en) * 2006-07-13 2007-12-05 주식회사 포스코 Wire rod rolling roll

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449302U (en) * 1987-09-17 1989-03-27
KR0120720Y1 (en) * 1995-06-23 1998-08-01 김만제 Composite roll for roughing mill of wire
JP2000288609A (en) 1999-04-08 2000-10-17 Mitsubishi Materials Corp Rolling roll
KR100782751B1 (en) * 2006-07-13 2007-12-05 주식회사 포스코 Wire rod rolling roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101595376B1 (en) 2016-01-14 2016-02-26 박은수 Assembly Structure Of Roller
US10138929B2 (en) 2016-01-14 2018-11-27 Eun Soo Park Assembly structure of roller

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KR20120071589A (en) 2012-07-03

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