KR20170075919A - Cooling water exclusion device for rolling mill - Google Patents

Cooling water exclusion device for rolling mill Download PDF

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Publication number
KR20170075919A
KR20170075919A KR1020150185445A KR20150185445A KR20170075919A KR 20170075919 A KR20170075919 A KR 20170075919A KR 1020150185445 A KR1020150185445 A KR 1020150185445A KR 20150185445 A KR20150185445 A KR 20150185445A KR 20170075919 A KR20170075919 A KR 20170075919A
Authority
KR
South Korea
Prior art keywords
wiper
work roll
driving unit
link member
rolling mill
Prior art date
Application number
KR1020150185445A
Other languages
Korean (ko)
Inventor
정종서
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020150185445A priority Critical patent/KR20170075919A/en
Publication of KR20170075919A publication Critical patent/KR20170075919A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

A cooling water shutoff device for a rolling mill according to an embodiment of the present invention includes a wiper for preventing cooling water sprayed on the surface of the work roll from contacting the work roll for rolling the rolled material to be scattered by the rolled material; A driving unit for pressing the wiper so as to closely contact the surface of the work roll; And a pressure transmitting member disposed between the wiper and the driving unit and distributing the pressing force of the driving unit to the wiper.

Description

Technical Field [0001] The present invention relates to a cooling water exclusion device for rolling mill,

The present invention relates to a cooling water shutoff device for a rolling mill.

Generally, in the hot rolling process of iron making facilities, the slab is uniformly heated at a temperature of 1250 to 1300 ° C in a heating furnace, and is then roughened by a roughing mill and a finishing mill to produce hot coils of a thickness required by a customer .

As shown in Fig. 1, the power generated by the main motor is transmitted to the work roll 1 of the rolling mill via the drive spindle, and the work roll 1 is moved together with the backup roll 2 The rolled material 3 is rolled while rotating.

Since the work roll 1 is expanded and deformed while the temperature rises as the rolled material 3 is continuously rolled at a high temperature (950 to 1000 ° C), the cooling water injection nozzle 4 is installed on both sides of the rolled material 3, The cooling water 5 can be sprayed onto the outer surface of the roll 1 and the sludge or the like on the surface of the work roll 1 can be prevented from falling down to the upper portion of the rolled material 3, The wiper 6 is disposed on the upper side of the rolled material 3 so as to be in close contact with the outer peripheral surface of the work roll 1. [

However, when the work roll 1 of the rolling mill is not sufficiently cooled, the work roll 1 of the mill may be locally deformed due to the increase of the surface and the internal temperature. In this case, So that the cooling water 5 falls into the rolled material 3 and the temperature of the rolled material 3 is lowered.

An object of an embodiment of the present invention is to provide a cooling water shutoff apparatus for a rolling mill which can effectively prevent the cooling water sprayed on the work roll of the rolling mill from being dropped on the rolled material.

It is another object of the present invention to provide a cooling water shutoff device for a rolling mill capable of maintaining the adhesion with a work roll even if deformation occurs in the work roll of the rolling mill.

A cooling water shutoff device for a rolling mill according to an embodiment of the present invention includes a wiper for preventing cooling water sprayed on the surface of the work roll from contacting the work roll for rolling the rolled material to be scattered by the rolled material; A driving unit for pressing the wiper so as to closely contact the surface of the work roll; And a pressure transmitting member disposed between the wiper and the driving unit and distributing the pressing force of the driving unit to the wiper.

According to the cooling water shutoff apparatus for rolling mill according to the embodiment of the present invention, it is possible to effectively prevent the cooling water sprayed on the work roll of the rolling mill from falling on the rolled material.

Further, even if deformation occurs in the work roll of the rolling mill, the adhesion with the work roll can be maintained.

In addition, even if the wiper in close contact with the work roll of the rolling mill is worn, adhesion with the work roll can be maintained.

1 is a perspective view showing a cooling process of a conventional rolling facility,
2 is a side view of a cooling water shielding apparatus for a rolling mill according to an embodiment of the present invention,
3 is an enlarged view of a portion A in Fig. 2,
4 is a plan view showing a pressure transmitting member provided in a cooling water shutoff device for a rolling mill according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may be easily suggested, but are also included within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

FIG. 2 is a side view of a cooling water shielding apparatus for a rolling mill according to an embodiment of the present invention, and FIG. 3 is an enlarged view of a portion A in FIG.

2 and 3, a cooling water shielding apparatus 100 for a rolling mill according to an embodiment of the present invention is a cooling water shielding apparatus for a rolling mill, which contacts a work roll 1 rolling a rolled material 3, A driving unit 120 for pressing the wiper 110 against the surface of the work roll 1 and a pressing force of the driving unit 120 so that the cooling water is prevented from being scattered by the rolled material 3, To the wiper (110).

The cooling water shutoff device 100 for a rolling mill according to the embodiment of the present invention is installed in a rolling mill to prevent the cooling water sprayed on the work roll 1 of the rolling mill from falling into the rolled material 3. [

For example, the wiper 110 provided in the cooling water shut-off device 100 for a rolling mill is pressed by the driving part 120 and brought into close contact with the work roll 1 of the rolling mill.

The wiper 110 has a length corresponding to the length of the work roll 1 of the rolling mill.

Since the wiper 110 is in contact with the rotating work roll 1, it is preferable to use a material having excellent heat resistance and wear resistance so as not to be easily deformed by heat. For example, the wiper 110 may be provided with a heat resistant rubber material or a synthetic resin material.

The wiper 110 is provided as a material capable of elastic deformation. Therefore, since the wiper 110 is pressed against the work roll 1 of the rolling mill in a state of being elastically deformed by the driving unit 120, the adhesion force with the work roll 1 can be improved, It is possible to effectively prevent the water from flowing into the strips 3.

The driving unit 120 presses the wiper 110 toward the work roll 1 of the rolling mill and the pressed wiper 110 can maintain a state of being in tight contact with the work roll 1 of the rolling mill.

As the driving unit 120, an actuator such as a cylinder may be used.

On the other hand, the work roll 1 of the rolling mill is caused to rise in surface and internal temperature due to the hot rolled material 3 which is in direct contact with the work roll 1, and the cooling water is injected to cool it.

However, when the work roll 1 of the rolling mill is not sufficiently cooled, the work roll 1 of the mill may be locally deformed due to an increase in the surface and internal temperature.

For example, when the temperature of the work roll 1 of the rolling mill rises, the central portion of the work roll 1 of the rolling mill may expand. In this case, the wipers 110 are partially prevented from coming into close contact with the work roll 1 So that the cooling water is dripped to the rolled material 3 and the temperature of the rolled material 3 may be lowered.

There is a problem that the wiper 110 is elastically deformed as a whole in response to deformation of the surface of the work roll 1 when the pressing force is transmitted to only one side of the wiper 110 even if the wiper 110 is elastically deformable.

Accordingly, the cooling water shielding apparatus 100 for a rolling mill according to an embodiment of the present invention includes the pressure transmitting member 130 for dispersing the pressing force of the driving unit 120 and transmitting the dispersed pressing force as a whole to the wiper 110 do.

Hereinafter, the pressure transmitting member 130 provided in the cooling water shielding apparatus 100 for a rolling mill according to an embodiment of the present invention will be described in detail with reference to FIG.

4 is a plan view showing a pressure transmitting member provided in a cooling water shutoff device for a rolling mill according to an embodiment of the present invention.

Referring to FIG. 4, the pressure transmitting member 130 is disposed between the wiper 110 and the driving unit 120.

The pressure transmitting member 130 is configured such that a plurality of rods are connected by pins P to form a link structure and disperse the pressing force of the driving unit 120 to transmit the pressing force to the wiper 110. The number of the plurality of bars can be changed depending on the length of the work roll 1 and the installation space.

In one example, the pressure transmitting member 130 includes a first link member 131, a second link member 132, and a third link member 133.

The first link member 131 is connected to the driving unit 120 to transmit the pressing force of the driving unit 120 to the wiper 110.

For example, the first link member 131 is formed long in the longitudinal direction of the work roll 1 and includes a connecting member 131a connected to the driving unit 120 so as to be rotatable. The connecting member 131a may be connected to the driving unit 120 by a pin P and protrusions 131b may protrude from both ends of the connecting member 131a.

The second link member 132 includes a plurality of rod members that are pressed to press the wiper 110 and are pivotally connected to each other.

For example, the second link member 132 may be configured such that a plurality of rod members are rotatably connected to each other by a pin P, and each rod member is in close contact with the surface of the wiper 110.

In addition, the plurality of bar members of the second link member 132 can press the wiper 110 to deform the surface of the wiper 110 in response to surface deformation of the work roll 1, respectively.

The third link member 133 is provided between the first link member 131 and the second link member 132 so that the pressing force of the driving unit 120 transmitted from the first link member 131 is transmitted to the plurality of rod members 131 Dispersed and transmitted.

For example, the third link member 133 includes a transmitting member 133a rotatably connected to the protrusion 131b protruding from the connecting member 131a of the first link member 131. [ The transmitting member 133a is elongated in the longitudinal direction of the work roll 1, and protrusions 133b may protrude from both ends.

The projection 133b of the transmitting member 133a may be connected to a plurality of rod members of the second link member 132, respectively. The projection 133b of the transmitting member 133a of the third link member 133 and the plurality of rod members of the second link member 132 can be connected by a pin P so as to be rotatable with respect to each other.

The pressure transmitting member 130 may not transmit the pressing force of the driving unit 120 to only one side of the wiper 110 but may disperse the pressing force on the surface of the wiper 110, As shown in Fig.

Therefore, the wiper 110 can be resiliently deformed into a shape corresponding to the surface deformation of the work roll 1.

According to the above embodiment, the cooling water shutoff device 100 for a rolling mill according to the embodiment of the present invention can effectively prevent the cooling water sprayed on the work roll 1 of the rolling mill from falling into the rolled material 3.

Further, even if deformation occurs in the work roll 1 of the rolling mill, the adhesion with the work roll 1 can be maintained.

Further, even if the wiper 110 closely contacting the work roll 1 of the rolling mill is worn, the adhesion with the work roll can be maintained.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that changes or modifications may fall within the scope of the appended claims.

100: Cooling water shutoff device for rolling mill
110: Wiper
120:
130: pressure transmitting member
131: first link member
132: second link member
133: third link member

Claims (7)

A wiper which contacts the work roll for rolling the rolled material and prevents the cooling water sprayed on the surface of the work roll from being scattered by the rolled material;
A driving unit for pressing the wiper so as to closely contact the surface of the work roll; And
And a pressure transmitting member disposed between the wiper and the driving unit and distributing the pressing force of the driving unit to the wiper.
The method according to claim 1,
The pressure-
Wherein a plurality of bars are connected by pins to form a link structure.
The method according to claim 1,
The pressure-
A first link member connected to the driving unit to transmit a pressing force of the driving unit to the wiper;
A second link member including a plurality of rod members which are pivotally connected to each other to press the wiper; And
And a third link member which is provided between the first link member and the second link member and disperses and transmits a pressing force of the driving unit transmitted from the first link member to the plurality of rod members, Blocking device.
The method of claim 3,
And the second link member presses the wiper so as to deform the surface of the wiper in accordance with deformation of the surface of the work roll.
The method according to claim 1,
Wherein the wiper is provided so as to be elastically deformable in a shape corresponding to a curvature of a surface of the work roll.
The method according to claim 1,
Wherein the wiper is provided as a heat-resistant elastic material.
The method according to claim 6,
The wiper is a heat-resistant rubber material or a synthetic resin material.
KR1020150185445A 2015-12-23 2015-12-23 Cooling water exclusion device for rolling mill KR20170075919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150185445A KR20170075919A (en) 2015-12-23 2015-12-23 Cooling water exclusion device for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150185445A KR20170075919A (en) 2015-12-23 2015-12-23 Cooling water exclusion device for rolling mill

Publications (1)

Publication Number Publication Date
KR20170075919A true KR20170075919A (en) 2017-07-04

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KR1020150185445A KR20170075919A (en) 2015-12-23 2015-12-23 Cooling water exclusion device for rolling mill

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108469757A (en) * 2018-01-24 2018-08-31 昆明理工大学 A kind of control system of the motion bracelet combined with intelligent vehicle key and bluetooth headset
KR20190105825A (en) * 2018-03-06 2019-09-18 주식회사 포스코 Cooling device for rolling machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108469757A (en) * 2018-01-24 2018-08-31 昆明理工大学 A kind of control system of the motion bracelet combined with intelligent vehicle key and bluetooth headset
KR20190105825A (en) * 2018-03-06 2019-09-18 주식회사 포스코 Cooling device for rolling machine

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