KR20170028773A - Apparatus for removing the ailen substance of the roll surface - Google Patents

Apparatus for removing the ailen substance of the roll surface Download PDF

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Publication number
KR20170028773A
KR20170028773A KR1020150125811A KR20150125811A KR20170028773A KR 20170028773 A KR20170028773 A KR 20170028773A KR 1020150125811 A KR1020150125811 A KR 1020150125811A KR 20150125811 A KR20150125811 A KR 20150125811A KR 20170028773 A KR20170028773 A KR 20170028773A
Authority
KR
South Korea
Prior art keywords
foreign matter
roll
housing
matter removing
air
Prior art date
Application number
KR1020150125811A
Other languages
Korean (ko)
Inventor
박순복
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 KR1020150125811A priority Critical patent/KR20170028773A/en
Priority to JP2018511444A priority patent/JP6539778B2/en
Priority to PCT/KR2016/009336 priority patent/WO2017039213A1/en
Priority to CN201680051387.0A priority patent/CN108348969B/en
Publication of KR20170028773A publication Critical patent/KR20170028773A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • 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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • 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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/18—Rolls or rollers

Abstract

Provided is an invention which removes an attached foreign substance on a surface of a strip transfer roll made of urethane in an effective way to protect the surface of the strip transfer roll, comprising: a housing installed in one part of the strip transfer roll in a width direction; air knives installed in an upper part and a lower part of an entrance of the housing respectively and symmetrically to remove a foreign substance of the strip transfer roll by air spraying; a foreign substance removal roll installed in a middle part of the air knife, removing the foreign substance by having attachment with the strip transfer roll; a base plate installed in a bottom part of the housing, and supporting the housing using a support fixture as a means.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for removing foreign substances on a surface of a strip conveying roll,

Disclosed is a device for removing foreign materials on a surface of a strip conveying roll for removing foreign matters adhered to a strip conveying roll in the production of strips.

Generally, a strip rolled in a thin plate shape is supported by a plurality of rolls, and is continuously processed to be subjected to various processes, thereby manufacturing a product meeting the requirements of a consumer.

Here, the role of transferring the strip to various processes is taken by a conveying device composed of several kinds of rolls. Since the rolls constituting the conveying device are formed of urethane, a large amount of A problem phenomenon in which a foreign substance is caught is caused and a problem phenomenon such as a dent (defects) is caused on the surface of the strip to be transported.

That is, in order to solve the above-mentioned problems, conventionally, a foreign matter (including magnesium oxide (MgO) powder) fixed on the surface of the urethane roll was fixed to the surface of the roll by a fixed blade and removed through rotation of the urethane roll.

However, the magnesium oxide powder can not be completely removed in the process of removing the foreign substances as described above, and a part of the magnesium oxide powder falls on the upper surface of the strip to be transferred, thereby contacting the urethane roll, thereby causing a foreign matter groove defect on the surface of the urethane roll.

In addition, since the fixed blade maintains contact with the urethane roll, the surface of the urethane roll is damaged, thereby making it difficult to work frequently to replace the urethane roll.

A device for removing foreign materials on a surface of a strip conveying roll which is capable of protecting the surface of a strip conveying roll by more effectively removing foreign matter adhered to the strip conveying roll made of urethane.

The apparatus for removing foreign matter on the surface of a strip conveying roll includes: a housing provided on one side of a strip conveying roll in a width direction; An air knife symmetrically installed on upper and lower portions of an inlet of the housing to remove foreign substances from the strip transport rolls through air injection; A foreign matter removing roll installed in the middle portion of the air knife in the width direction to remove foreign matter by contact with the strip transport roll; And a base plate installed at a lower portion of the housing and supporting the housing through a support base.

The housing may be structured to inject air into the strip transport roll and suck foreign matter, and the foreign matter removing roll may have a structure in which a driving unit is connected to rotate the strip.

The housing further includes a collecting hole disposed behind the housing for collecting foreign substances flowing into the housing.

The collector may have a structure in which a hood for discharging the collected foreign substances to the outside is connected.

The driving unit includes a belt connected to a rotating shaft of the foreign matter removing roll to rotate the foreign matter removing roll, a driving pulley installed at the other end of the belt to apply driving force to the belt, and a driving pulley connected to the driving pulley, And may include a drive motor.

And a control unit electrically connected to the driving motor of the driving unit to control the rotational speed of the foreign matter removing roll.

The base plate may have a structure in which a sliding panel slidable in the front-rear direction is installed on the upper portion of the base plate to advance and retreat the housing.

The foreign matter removing roll may be configured to remove foreign matter on the surface of the strip transport roll by repeatedly contacting or separating the strip transport roll with the housing moving forward and backward together with the housing.

The sliding panel may have a structure electrically connected to the sliding panel driving unit for its forward and backward movement.

The sliding panel driving unit may be electrically connected to the control unit to control the forward and backward speed of the sliding panel.

The air knife may include a nozzle for spraying air on one side thereof.

The air knife may be divided into an upper knife and a lower knife at an inlet-side end of the housing.

The upper knife and the lower knife may have a structure in which a rounded portion is formed at a front end of the upper knife and the lower knife so that the air injected from the nozzle flows into the collecting hole in the housing to switch the air direction so as to have a suction force of foreign matter.

The foreign matter removing roll may have a structure in which at least one spiral-shaped foreign matter removing groove is formed on the surface thereof.

The foreign matter removing roll may have a structure in which a fiber rope for removing foreign matter through a contact with the strip transport roll is spirally wound on the outer side thereof.

The foreign matter removing roll may have a structure in which the foreign matter removing groove and the fiber rope are spirally formed on the surface thereof.

According to this apparatus, the surface of the strip conveying roll can be protected by effectively removing the magnesium oxide adhered to the surface of the strip conveying roll in the production of the strip, and the life of the strip conveying roll made of urethane can be extended, It is possible to secure the safety of the operator due to the reduction in access.

In addition, the surface of the strip conveying roll is kept clean, thereby improving the efficiency of the strip manufacturing process, preventing defects occurring in the strip manufacturing process, and improving the quality of the strip product.

1 is a schematic view showing an apparatus for removing foreign substances on the surface of a strip conveying roll according to the present embodiment.
FIG. 2 is a schematic view showing a state in which the foreign matter removing apparatus of the strip conveying roll surface according to the present embodiment removes foreign matter.
Fig. 3 is a schematic view showing the installation state of the foreign matter removing roll according to the present embodiment.
4 is a schematic view showing the structure of the air knife according to the present embodiment.
5 is an enlarged view of part A of FIG.
6 is a schematic view showing the surface state of the foreign matter removing roll according to the present embodiment.
Fig. 7 is an enlarged schematic view showing part B of Fig.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. 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 invention. Accordingly, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a schematic view showing an apparatus for removing foreign substances on the surface of a strip conveying roll according to the present embodiment.

FIG. 2 is a schematic view showing a state in which the foreign matter removing apparatus of the strip conveying roll surface according to the present embodiment removes foreign matter.

Fig. 3 is a schematic view showing the installation state of the foreign matter removing roll according to the present embodiment.

As shown in FIGS. 1 to 3, the foreign matter removing device on the surface of the strip transporting roll 1 removes foreign matter including magnesium oxide (MgO) on the surface of the urethane roll, Foreign substances adhering to the surface of the roll 1 in the form of dust are removed through the injection and suction of the air and removed by scraping in the case of adhered foreign substances forming a film on the surface of the strip feed roll 1.

To this end, the foreign matter removing device includes a housing 10, an air knife 20, a foreign matter removing roll 30, and a base plate 40.

In this embodiment, foreign matter in the form of dust attached to the surface of the strip conveying roll 1 can be sucked and removed by using the air knife 20, and the foreign matter removing roll 30 can be removed from the strip conveying roll 1 The foreign matter can be removed by contacting and rotating.

That is, the housing 10 constituting the foreign material removing device can be installed on one side of the strip conveying roll 1 in the width direction to inject air into the strip conveying roll 1 and suck foreign matter, The air knife 20 is installed symmetrically on the upper and lower portions of the inlet of the housing 10 to remove foreign substances from the strip feed roll 1 through air injection.

In addition, the foreign matter removing roll 30 may be provided in the middle portion of the air knife 20 in the width direction to remove foreign matter by contact with the strip conveying roll 1, and the base plate 40 And can support the housing 10 via a support base 41 provided at a lower portion of the housing 10.

Therefore, the foreign material removing device for removing the foreign substances adhering to the surface of the strip conveying roll 1 is characterized in that it effectively removes foreign matter composed of magnesium oxide (MgO) while protecting the surface of the strip conveying roll 1 The dust removing roll 30 can be removed by sucking the magnesium oxide dust into the housing 10 through the air spraying of the air knife 20 and the foreign matter removing roll 30 can be rotated Whereby the magnesium oxide powder on the surface of the strip feed roll 1 can be scratched off.

The housing 10 further includes a collecting port 50 disposed behind the housing 10 for collecting foreign substances flowing into the housing 10. The collecting port 50 discharges the collected foreign substances to the outside And a hood 60 for connection to the hood.

That is, foreign matter in the form of dust is introduced into the housing 10 through air jetting of the air knife 20, and is collected using the collecting hole 50, and the collected foreign matter is discharged through the hood 60 It can be discharged to the outside.

The driving unit is connected to the rotating shaft 30a of the foreign material removing roll 30 to rotate the foreign material removing roll 30. The belt 31 rotates the foreign material removing roll 30, A driving pulley 32 provided at the other end of the belt 31 to apply a driving force to the belt 31 and a driving motor 33 connected to the driving pulley 32 to rotate the driving pulley 32, . ≪ / RTI >

And a controller 70 electrically connected to the driving motor 33 of the driving unit to control the rotation speed of the foreign material removing roll 30.

The foreign matter removing roll 30 is rotated by the driving motor 33 of the driving unit to rotate the driving pulley 32 and move the belt 31 connected thereto through the rotation of the driving pulley 32, The foreign matter removing roll 30 is rotated while rotating the rotary shaft 30a of the foreign matter removing roll 30 connected to the strip conveying roll 31 so that the foreign matter adhered to the surface of the strip conveying roll 1 can be removed .

The foreign matter removing roll 30 is rotated in a direction opposite to the rotating direction of the strip feed roll 1 and at the same time the rotational speed of the foreign matter removing roll 30 is controlled to be slower than that of the strip feed roll 1, The friction force exerted on the strip conveying roll 1 can be designed to the maximum, and the foreign substances adhering to the strip conveying roll 1 can be effectively removed by using such frictional force.

The base plate 40 has a structure in which a sliding panel 42 slidable in the forward and backward directions is provided on the base plate 40 so that the housing 10 can be moved back and forth. It is possible to remove the foreign substances on the surface of the strip conveying roll 1 by repeating contact or separation with the strip conveying roll 1 while moving forward and backward together with the conveying roll 10.

That is, the sliding panel 42 installed on the base plate 40 is slid in the front-rear direction, so that the housing 10 connected to the base plate 40 via the support base 41 can be moved back and forth. It is possible to maximize the effect of removing the foreign matter by periodically repeating the action of moving the foreign matter removing roll 30 provided on the front of the strip conveying roll 1 in the forward and backward direction,

The sliding panel 42 is electrically connected to the sliding panel driving unit 43 for the forward and backward movement of the sliding panel 42. The sliding panel driving unit 43 is electrically connected to the control unit 70, ) Is controlled.

4 is a schematic view showing the structure of the air knife according to the present embodiment.

5 is an enlarged view of part A of FIG.

As shown in FIGS. 4 and 5, the air knife 20 constituting the foreign matter removing device includes nozzles 20a and 20b for spraying air on one side thereof. The upper knife 21 and the lower knife 22 may be respectively installed at the inlet side end of the housing 10. The upper and lower knives 21 and 22 are provided with the nozzles 20a and 20b, respectively, so as to inject air.

The upper knife 21 and the lower knife 22 are formed with rounded portions 21a and 22a at the front end thereof so that the air ejected from the nozzles 20a and 20b can be guided to the inside of the housing 10 And is capable of flowing air into the collecting port 50 so as to switch the air direction so as to have a suction force of foreign matter.

The air knife 20 sucks foreign materials adhering to the surface of the strip feed roll 1 by using the Coanda effect and has a rounded portion formed at an end of the upper knife 21 and the lower knife 22 The direction of the air jetted from the air knife 20 is switched to the direction of the collection port 50 of the housing 10 along the strip conveying roll 1 and the upper knife 21, A strong suction force is generated through a gap spaced from the end of the lower knife 22. [

That is, the foreign material removing device is configured such that the air injected through the upper knife 21 and the lower knife 22 is diverted by the rounding portions 21a and 22a formed at the ends of the nozzles 20a and 20b, The strip conveying roll 1 is moved to the collecting port 50 through the housing 10 to suck foreign matter adhering to the surface of the strip conveying roll 1 by using the suction force and the Coanda effect, 60 to the outside.

6 is a schematic view showing the surface state of the foreign matter removing roll according to the present embodiment.

Fig. 7 is an enlarged schematic view showing part B of Fig.

6 and 7, the foreign matter removing roll 30 constituting the foreign matter removing device has a structure in which at least one spiral-shaped foreign matter removing groove 30b is formed on the surface of the foreign matter removing roll 30, A fiber rope 30c is spirally wound on the outer side thereof to remove foreign matter through contact with the strip conveying roll 1 and the foreign matter removing roll 30 is spirally wound around the surface of the foreign matter removing groove 30b and the fiber ropes 30c, respectively.

That is, the foreign matter removing groove 30b is spirally formed in two lines on the surface of the foreign matter removing roll 30, and the fiber rope 30c is wound around one of the two lines of foreign matter removing grooves 30b, So that the fiber rope 30c can remove foreign matter when the transfer roll 1 and the foreign matter removing roll 30 come into contact with each other. (Magnesium oxide powder) adhered to the strip conveying roll 1 is scraped off by using the fiber rope 30c to be dropped downward and discharged to the outside through the collecting hole.

As the fine particles of the foreign matter become high in the foreign substance removing groove 30b, the foreign matter can be removed as a cake through the rotation of the foreign matter removing roll 30.

Therefore, it is possible to effectively remove the foreign substances on the roll surface while protecting the roll surface through the foreign material removing device on the surface of the strip conveying roll 1, and to remove the magnesium oxide dust or the magnesium oxide powder fixed on the roll surface completely The quality of the strip product can be improved by keeping the surface condition of the roll clean.

However, the present invention is not limited to the strip conveying roll. However, the present invention is not limited to the strip conveying roll, but may be applied to a driving type conveying roll in which power is transmitted in close contact with a strip or an idle type conveying roll in which no power is transmitted. That is, it is natural that the apparatus of the present invention can be used for removing surface foreign matter of a roll applied to a strip conveying environment.

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

1: strip feed roll 10: housing
20: air knife 20a, 20b: nozzle
21: upper knife 21a: rounding part
22: Lower knife 22a: Rounding part
30: Foreign matter removing roll 30a:
30b: foreign matter removing groove 30c: fiber rope
31: Belt 32: Driving pulley
33: drive motor 40: base plate
41: support base 42: sliding panel
43: sliding panel driving part 50:
60: hood 70:

Claims (16)

A housing provided on one side of the strip conveying roll in a width direction;
An air knife symmetrically installed on upper and lower portions of an inlet of the housing to remove foreign substances from the strip transport rolls through air injection;
A foreign matter removing roll installed in the middle portion of the air knife in the width direction to remove foreign matter by contact with the strip transport roll; And
And a base plate provided at a lower portion of the housing and supporting the housing via a support. The method according to claim 1,
Wherein the housing is configured to inject air into the strip conveying roll and to suck foreign matter therein,
Wherein the foreign matter removing roll is connected to a driving unit for rotation thereof. 3. The method of claim 2,
Wherein the housing further includes a collecting port provided behind the housing for collecting foreign matter introduced into the housing. The method of claim 3,
And a hood for discharging the collected foreign matter to the outside is connected to the collector. 3. The method according to claim 1 or 2,
The driving unit includes a belt connected to a rotating shaft of the foreign matter removing roll to rotate the foreign matter removing roll, a driving pulley installed at the other end of the belt for applying driving force to the belt, and a driving pulley connected to the driving pulley, And a drive motor. 6. The method of claim 5,
And a control unit electrically connected to the driving motor of the driving unit to control the rotational speed of the foreign matter removing roll. The method according to claim 1,
Wherein the base plate has a sliding panel that is slidable in the forward and backward directions on the upper portion thereof so that the housing can be moved back and forth. 8. The method of claim 1 or 7,
Wherein the foreign matter removing roll is moved forward and backward together with the housing to repeatedly make contact with or spaced from the strip transport roll to remove foreign matter on the surface of the strip transport roll. 8. The method of claim 7,
And the sliding panel is electrically connected to the sliding panel driving unit for its forward and backward movement. 10. The method according to claim 6 or 9,
Wherein the sliding panel driving unit is electrically connected to the control unit to control the forward and backward speed of the sliding panel. The method according to claim 1,
Wherein the air knife includes a nozzle for spraying air on one side thereof. The method according to claim 1,
Wherein the air knife is divided into an upper knife and a lower knife at the inlet side end of the housing, respectively. 13. The method according to any one of claims 3 to 12,
The upper knife and the lower knife have a rounded portion formed at a front end thereof so that the air injected from the nozzle flows into the collecting hole in the housing to change the air direction so as to have a suction force of foreign matter. . The method according to claim 1,
Wherein the foreign matter removing roll has at least one spiral-shaped foreign matter removing groove formed on the surface thereof. The method according to claim 1,
Wherein the foreign matter removing roll has a spiral wound fiber rope on the outside thereof for removing foreign matter through contact with the strip transport roll. 16. The method according to claim 14 or 15,
Wherein the foreign matter removing roll has a structure in which the foreign matter removing groove and the fiber rope are spirally formed on the surface of the foreign matter removing roll.
KR1020150125811A 2015-09-04 2015-09-04 Apparatus for removing the ailen substance of the roll surface KR20170028773A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020150125811A KR20170028773A (en) 2015-09-04 2015-09-04 Apparatus for removing the ailen substance of the roll surface
JP2018511444A JP6539778B2 (en) 2015-09-04 2016-08-23 Foreign substance removal device
PCT/KR2016/009336 WO2017039213A1 (en) 2015-09-04 2016-08-23 Foreign material removal device
CN201680051387.0A CN108348969B (en) 2015-09-04 2016-08-23 Foreign matter removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150125811A KR20170028773A (en) 2015-09-04 2015-09-04 Apparatus for removing the ailen substance of the roll surface

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020170059380A Division KR102044316B1 (en) 2017-05-12 2017-05-12 Apparatus for removing the ailen substance of the roll surface

Publications (1)

Publication Number Publication Date
KR20170028773A true KR20170028773A (en) 2017-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150125811A KR20170028773A (en) 2015-09-04 2015-09-04 Apparatus for removing the ailen substance of the roll surface

Country Status (1)

Country Link
KR (1) KR20170028773A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200076068A (en) * 2018-12-19 2020-06-29 주식회사 포스코 Foreign Matter Removal Type Steel Sheet Transferring Roll

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200076068A (en) * 2018-12-19 2020-06-29 주식회사 포스코 Foreign Matter Removal Type Steel Sheet Transferring Roll

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