WO2011093238A1 - 塗布装置 - Google Patents

塗布装置 Download PDF

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Publication number
WO2011093238A1
WO2011093238A1 PCT/JP2011/051197 JP2011051197W WO2011093238A1 WO 2011093238 A1 WO2011093238 A1 WO 2011093238A1 JP 2011051197 W JP2011051197 W JP 2011051197W WO 2011093238 A1 WO2011093238 A1 WO 2011093238A1
Authority
WO
WIPO (PCT)
Prior art keywords
paint
roll
pan
supply pipe
bubbles
Prior art date
Application number
PCT/JP2011/051197
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
竜規 岡野
容任 森川
恵三 龍王
克己 村田
Original Assignee
Ｊｆｅスチール株式会社
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 Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to CN2011800069919A priority Critical patent/CN102725075A/zh
Publication of WO2011093238A1 publication Critical patent/WO2011093238A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers

Definitions

  • the present invention relates to an applicator for applying a paint to a substrate such as a metal plate, and more particularly to a roll type applicator.
  • the paint As a coating device that applies paint to a base material such as a metal plate, the paint is circulated between a circulation tank and a paint pan, the paint is pumped from the paint pan by a rotating roll, and the pumped paint is applied to the base material.
  • a roll type coating apparatus is known.
  • FIG. 1 shows an example of such a roll type coating apparatus.
  • this roll-type coating device 10 applies the coating material 2 continuously with respect to the upper surface and lower surface of the steel strip 1 to drive
  • the roll-type coating device 10 includes a circulation tank 11 that stores the paint 2, a pump 12 for circulating the paint 2, an upper surface application unit 20 that applies the paint 2 to the upper surface of the steel strip 1, and a lower surface of the steel strip 1. And a lower surface application unit 30 for applying the paint 2 to the surface.
  • the top surface application unit 20 receives a pick-up roll 22 that pumps up the paint 2 contained in the paint pan 21, and a paint 2 that is transported along the surface of the pick-up roll 22, and applies the paint 2 to the top surface of the steel strip 1. It has a tal roll 23 and a backup roll 24 around which the steel strip 1 is wound. Between the circulation tank 11 and the paint pan 21, a supply pipe 13 that supplies the paint 2 from the circulation tank 11 to the paint pan 21, and a recovery pipe 14 that collects excess paint 2 from the paint pan 21 into the circulation tank 11, Is provided. The supply pipe 13 and the recovery pipe 14 circulate the paint 2 between the circulation tank 11 and the paint pan 21.
  • the lower surface coating unit 30 receives the pickup roll 32 that pumps up the paint 2 contained in the paint pan 31 and the paint 2 that is carried along the surface of the pickup roll 32, and the paint 2 is applied to the lower surface of the steel strip 1. And an applicator roll 33 to be applied.
  • a supply pipe 15 that supplies the paint 2 from the circulation tank 11 to the paint pan 31, and a recovery pipe 16 that collects excess paint 2 from the paint pan 31 into the circulation tank 11. Is provided.
  • the supply pipe 15 and the recovery pipe 16 circulate the paint 2 between the circulation tank 11 and the paint pan 31.
  • the roll-type coating apparatus 10 shown in FIG. 1 is a two-roll type in which two rolls, a pickup roll and an applicator roll, are installed. In addition to the pickup roll and the applicator roll, the paint pumped up by the pickup roll. There is also a three-roll type in which a metering roll for squeezing out a part of is installed.
  • Patent Document 1 proposes a roll-type coating device provided with a baffle plate that squeezes a part of the paint pumped up by a pickup roll before it reaches the metering roll.
  • This device has been devised based on the idea that bubbles are generated when the paint squeezed down by the metering roll falls onto the paint liquid surface and entrains the atmosphere as a mechanism for generating bubbles.
  • the generation of bubbles can be suppressed by reducing the contact between the squeezed paint and the atmosphere.
  • Patent Document 2 proposes a defoaming device that defoams and defoams by rotating or reciprocating a linear body above the paint liquid surface of the paint pan and bringing it into contact with the foam on the paint liquid surface. Has been.
  • Patent Document 3 discloses, as a defoaming device disposed in the middle of a paint circulation system, a defoaming treatment chamber that promotes the floating separation of bubbles in the paint, and a defoaming of bubbles that rise in the defoaming treatment chamber There has been proposed a defoaming device including an exhaust means for promoting the above.
  • Patent Documents 1 to 3 Even if the techniques described in Patent Documents 1 to 3 are applied, it is not possible to sufficiently prevent the appearance of the paint from being deteriorated due to bubbles.
  • Patent Document 1 the technique described in Patent Document 1 is based on a three-roll type roll coater and cannot be applied to a two-roll coater.
  • Patent Documents 2 and 3 do not suppress the generation of bubbles themselves, but defoam and defoam the generated bubbles, and a large defoaming device or defoaming device is required. is there.
  • the present invention has been made in view of the circumstances as described above, and an object of the present invention is to provide a coating apparatus capable of accurately suppressing the generation of bubbles and preventing the appearance of the coating from being defective.
  • An applicator according to the present invention is an applicator that circulates paint between a circulation tank and a paint pan, draws the paint by a roll rotating from the paint in the paint pan, and applies the pumped paint to a substrate.
  • An open hole is provided in a part of the pipe at the highest position of the pipe for supplying paint from the circulation tank to the paint pan, and a part of the supply port for supplying paint to the paint pan is connected to the paint in the paint pan. It is located above the liquid level.
  • the coating apparatus According to the coating apparatus according to the present invention, it is possible to accurately suppress the generation of bubbles and prevent the appearance of the coating from being defective.
  • FIG. 1 is a diagram illustrating an example of a roll-type coating apparatus.
  • FIG. 2 is a diagram illustrating a bubble generation mechanism in a conventional roll type coating apparatus.
  • FIG. 3 is a diagram illustrating a configuration of a coating apparatus according to an embodiment of the present invention.
  • FIG. 2 is an enlarged view of a portion A (a portion surrounded by a broken line) in FIG.
  • FIG. 2 shows a state in which the paint 2 is supplied from the supply pipe 13 to the paint pan 21 in the conventional roll type coating apparatus. In this state, the air layer 8 is formed in the supply pipe 13 at the highest portion of the supply pipe 13.
  • the air in the air layer 8 is caught in the flow of the paint 2 in the supply pipe 13, flows into the paint pan 21 from the supply port 13 ⁇ / b> A of the supply pipe 13, enters the paint 2, and then enters the liquid level 3 of the paint 2. Ascend to the top and become bubbles 9.
  • bubbles are generated by the same mechanism in part B (the part surrounded by the broken line).
  • the present inventors do not involve the air in the air layer 8 in the flow of the paint 2 in the supply pipe 13 in order to suppress the generation of the bubbles 9 based on the bubble generation mechanism as described above. I came up with the idea of doing so.
  • One embodiment of the present invention based on the above concept will be described with reference to the drawings. In this embodiment, the roll-type coating apparatus 10 shown in FIG. 1 is targeted.
  • FIG. 3 is an enlarged view of a portion A (a portion surrounded by a broken line) in FIG. 1 according to the embodiment of the present invention, and shows a state where the paint 2 is supplied from the supply pipe 13 to the paint pan 21. .
  • an open hole 18 is provided in a part of the supply pipe 13 at the highest position of the supply pipe 13, and a part 13 a of the supply port 13 ⁇ / b> A of the supply pipe 13 is a paint. 2 above the liquid level 3.
  • FIG. 3 shows the portion A (the portion surrounded by a broken line) in FIG. 1, but of course the same applies to the portion B (the portion surrounded by a broken line) in FIG.
  • the roll type coating apparatus 10 which is the object of this embodiment is a two-roll type, it is needless to say that the present invention can also be applied to other roll type coating apparatuses such as a three-roll type.
  • a paint was applied to a cold-rolled steel strip of medium to low carbon steel having a plate thickness of 2.3 mm or less using the roll type coating device shown in FIG.
  • coating was performed using the coating apparatus according to the embodiment of the present invention shown in FIG. 3, and as a conventional example, coating was performed in the conventional state shown in FIG. The results are shown in Table 1.
  • the present invention can be applied to a coating apparatus that applies a paint to a base material such as a metal plate.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating Apparatus (AREA)
  • Dispersion Chemistry (AREA)
PCT/JP2011/051197 2010-01-29 2011-01-24 塗布装置 WO2011093238A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011800069919A CN102725075A (zh) 2010-01-29 2011-01-24 涂覆装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010017518A JP5663884B2 (ja) 2010-01-29 2010-01-29 塗布装置
JP2010-017518 2010-01-29

Publications (1)

Publication Number Publication Date
WO2011093238A1 true WO2011093238A1 (ja) 2011-08-04

Family

ID=44319226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/051197 WO2011093238A1 (ja) 2010-01-29 2011-01-24 塗布装置

Country Status (4)

Country Link
JP (1) JP5663884B2 (ko)
KR (1) KR20120110124A (ko)
CN (1) CN102725075A (ko)
WO (1) WO2011093238A1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011156442A (ja) * 2010-01-29 2011-08-18 Jfe Steel Corp 塗布装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513683U (ko) * 1978-07-12 1980-01-28
JPH0173371U (ko) * 1987-11-02 1989-05-17
JPH0478465A (ja) * 1990-07-18 1992-03-12 Showa Alum Corp ツヤ消しオーバーコートの塗工方法およびその装置
JP2000084453A (ja) * 1998-09-14 2000-03-28 Fuji Kikai Kogyo Kk 版胴に対する塗布液の供給装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6473371A (en) * 1987-09-14 1989-03-17 Minolta Camera Kk Image noise preventing device for copying machine
JP5663884B2 (ja) * 2010-01-29 2015-02-04 Ｊｆｅスチール株式会社 塗布装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513683U (ko) * 1978-07-12 1980-01-28
JPH0173371U (ko) * 1987-11-02 1989-05-17
JPH0478465A (ja) * 1990-07-18 1992-03-12 Showa Alum Corp ツヤ消しオーバーコートの塗工方法およびその装置
JP2000084453A (ja) * 1998-09-14 2000-03-28 Fuji Kikai Kogyo Kk 版胴に対する塗布液の供給装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011156442A (ja) * 2010-01-29 2011-08-18 Jfe Steel Corp 塗布装置

Also Published As

Publication number Publication date
JP2011156442A (ja) 2011-08-18
JP5663884B2 (ja) 2015-02-04
CN102725075A (zh) 2012-10-10
KR20120110124A (ko) 2012-10-09

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