WO2019227655A1 - Tête de revêtement par extrusion verticale - Google Patents

Tête de revêtement par extrusion verticale Download PDF

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Publication number
WO2019227655A1
WO2019227655A1 PCT/CN2018/097871 CN2018097871W WO2019227655A1 WO 2019227655 A1 WO2019227655 A1 WO 2019227655A1 CN 2018097871 W CN2018097871 W CN 2018097871W WO 2019227655 A1 WO2019227655 A1 WO 2019227655A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
lip
blocking piece
vertical
coating lip
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/097871
Other languages
English (en)
Chinese (zh)
Inventor
杨志明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Xinyuren Technology Co Ltd
Original Assignee
Shenzhen Xinyuren Technology Co Ltd
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 Shenzhen Xinyuren Technology Co Ltd filed Critical Shenzhen Xinyuren Technology Co Ltd
Publication of WO2019227655A1 publication Critical patent/WO2019227655A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve

Definitions

  • the invention relates to an improvement of an extrusion coating head, in particular to a vertical coating pressure coating head.
  • a conventional extrusion coating head includes a first coating lip 100 and a second coating lip 200, and is provided between the first coating lip 100 and the second coating lip 200.
  • a gasket which separates the first coating lip 100 and the second coating lip 200 to form a coating slit 300, and applies one of the first coating lip 100 and the second coating lip 200
  • a lip 310 is provided on the lip, and the hopper 310 communicates with the coating slit 300.
  • the main reasons for the tailing phenomenon are as follows: First, the slurry on the opposite side of the first coating lip 100 and the second coating lip 200 is opposite to the slurry.
  • the second is the pressure of the slurry remaining in the hopper 300 on the slurry in the slit 400 when the coating is stopped.
  • the pressure of the slurry on the slurry in the slit 400 is equal to or less than the resistance to the slurry on the opposite sides of the first coating lip 100 and the second coating lip 200, There will be tailing, and vice versa.
  • the resistance of the opposite sides of the first coating lip 100 and the second coating lip 200 to the slurry is determined by two factors.
  • the first factor is the relative relationship between the first coating lip 100 and the second coating lip 200.
  • the smoothness of the surface Of course, if greater resistance is required, the rougher the opposite surface of the first coating lip 100 and the second coating lip 200 is, the better.
  • the second factor is the viscosity of the slurry. In the actual manufacturing process of the extrusion coating head, considering other coating effects during coating, such as coating uniformity, the more uniform the coating is, the better; during the coating process, the slurry layer to be coated should be No spots caused by air bubbles can occur.
  • the opposite surface of the first coating lip 100 and the second coating lip 200 must be made with a higher finish.
  • the viscosity of the slurry is constant for each slurry. It cannot be changed arbitrarily.
  • the pressure of the remaining slurry on the slurry in the slit has a large effect on the tailing phenomenon during coating.
  • the present invention provides a vertical coating pressure coating head which can prevent tailing during coating and is suitable for vertical downward or oblique downward coating.
  • the technical solution of the present invention is to provide a vertical coating and coating head, which includes a first coating lip and a second coating lip, and a pad is provided between the first coating lip and the second coating lip.
  • Sheet, the spacer separates the first coating lip and the second coating lip to form a coating slit, and the first coating lip or the second coating lip is provided with a coating slit A communicating hopper; a blocking piece is provided on a side of the hopper that is far from the coating discharge opening, and the blocking piece blocks the hopper from the discharging hopper outlet.
  • the baffle is directly processed from the first coating lip or the second coating lip.
  • the blocking piece is formed by extending the gasket upward.
  • a contact portion extending downward is provided on the first coating lip or the second coating lip away from the coating discharge port.
  • the bottom surface of the contact portion is a flat surface or an arc surface.
  • the present invention adopts a structure in which a baffle is provided on a side of the hopper that is far from the coating discharge port, and the dam blocks the hopper from the discharge port of the hopper.
  • the present invention is temporarily closed During coating, the slurry can be temporarily stored in the hopper without forming pressure on the slurry in the slit. Therefore, the present invention has the advantages of being able to prevent smearing during coating and is suitable for vertical downward or oblique downward coating.
  • 1 is a schematic structural diagram of an embodiment of a conventional extrusion coating head
  • FIG. 2 is a schematic structural diagram of a first embodiment of the extrusion coating head of the present invention
  • FIG. 3 is a schematic structural diagram of a second embodiment of the extrusion coating head of the present invention.
  • FIG. 4 is a schematic structural view of a third embodiment of the extrusion coating head of the present invention.
  • FIG. 2 discloses a first embodiment of a vertical pressure coating head of the present invention, which includes a first coating lip 1 and a second coating lip 2.
  • a shim is provided between the lip 1 and the second coating lip 2, and the shim separates the first coating lip 1 and the second coating lip 2 to form a coating slit 3.
  • the coating lip 1 or the second coating lip 2 is provided with a material groove 31 communicating with the coating slit 3; a side of the material groove 31 remote from the coating outlet 32 is provided with a blocking piece 311, so
  • the blocking piece 311 blocks the material slot 31 from the material outlet of the material slot 312.
  • the blocking piece 311 is directly processed from the first coating lip 1 or the second coating lip 2.
  • the blocking piece 311 can also be designed to extend upward from the gasket, and the same effect can be achieved.
  • a blocking piece 311 is provided on a side of the material tank 31 remote from the coating outlet 32, and the structure of the material block 311 blocks the material tank 31 from the material outlet 312 of the material tank.
  • FIG. 3 illustrates a second embodiment of a vertical pressure coating head of the present invention, which includes a first coating lip 1 and a second coating lip 2.
  • a shim is provided between the lip 1 and the second coating lip 2, and the shim separates the first coating lip 1 and the second coating lip 2 to form a coating slit 3.
  • the coating lip 1 or the second coating lip 2 is provided with a material groove 31 communicating with the coating slit 3; a side of the material groove 31 remote from the coating outlet 32 is provided with a blocking piece 311,
  • the blocking piece 311 blocks the material slot 31 from the material outlet of the material slot 312.
  • the blocking piece 311 is directly processed from the first coating lip 1 or the second coating lip 2.
  • the blocking piece 311 can also be designed to extend upward from the gasket, and the same effect can be achieved.
  • a blocking piece 311 is provided on a side of the material tank 31 remote from the coating outlet 32, and the structure of the material block 311 blocks the material tank 31 from the material outlet 312 of the material tank.
  • a contact portion 11 is provided on the coating lip on the side remote from the discharge port 32, and the bottom surface 111 of the contact portion 11 is a curved surface structure.
  • This design when this embodiment is vertically downward When the coating is applied obliquely downward to the substrate, the bottom surface 111 of the contact portion 11 abuts against the front portion of the substrate in the advancing direction of the substrate.
  • the slurry outlet 311 is suspended above the substrate, and the slurry outflow 311 flows out in a free state when being coated (that is, it is not affected by any extension of the traditional contact coating lip), and has the same effect as the non-contact coating In this way, the method of contact coating is used to achieve the purpose of non-contact coating effect (in the prior art, the effect of non-contact coating is better than the effect of contact coating).
  • FIG. 4 discloses a fourth embodiment of a curved-type pressure coating head according to the present invention.
  • the embodiment shown in FIG. 4 is substantially the same as the embodiment shown in FIG.
  • the bottom surface 111 of the contact portion 11 is a flat surface.

Landscapes

  • Coating Apparatus (AREA)

Abstract

L'invention concerne une tête de revêtement par extrusion verticale, comprenant une première lèvre de revêtement (1) et une seconde lèvre de revêtement (2), un joint d'étanchéité étant disposé entre la première lèvre de revêtement (1) et la seconde lèvre de revêtement (2); le joint d'étanchéité sépare la première lèvre de revêtement (1) de la seconde lèvre de revêtement (2) pour former une fente de revêtement (3), et une rainure de matériau (31) qui communique avec la fente de revêtement (3) est disposée sur la première lèvre de revêtement (1) ou la seconde lèvre de revêtement (2); une pièce de blocage (311) est disposée sur un côté de la rainure de matériau (31) qui est éloignée d'un orifice d'évacuation (32) de matériau de revêtement, et la pièce de blocage (311) bloque la rainure de matériau (31) vers l'orifice d'évacuation de matériau (32) de la rainure de matériau. La tête de revêtement par extrusion verticale peut empêcher la formation de traînées pendant le revêtement et est appropriée pour un revêtement vertical vers le bas ou un revêtement oblique vers le bas.
PCT/CN2018/097871 2018-05-26 2018-08-01 Tête de revêtement par extrusion verticale Ceased WO2019227655A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810527507.0 2018-05-26
CN201810527507.0A CN108480137B (zh) 2018-05-26 2018-05-26 立式涂压涂布头

Publications (1)

Publication Number Publication Date
WO2019227655A1 true WO2019227655A1 (fr) 2019-12-05

Family

ID=63352296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/097871 Ceased WO2019227655A1 (fr) 2018-05-26 2018-08-01 Tête de revêtement par extrusion verticale

Country Status (2)

Country Link
CN (1) CN108480137B (fr)
WO (1) WO2019227655A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06226181A (ja) * 1993-01-30 1994-08-16 Sumitomo Metal Ind Ltd スロットノズルコ−タ型塗装装置
EP1004931A1 (fr) * 1998-11-27 2000-05-31 Fuji Photo Film Co., Ltd. Appareil de revêtement
US20030080307A1 (en) * 2001-10-31 2003-05-01 Nordson Corporation Adjustable die for a fluid dispenser and method
US20140000518A1 (en) * 2012-06-27 2014-01-02 Tokyo Electron Limited Coating apparatus and method for filling coating liquid
CN104661760A (zh) * 2012-09-27 2015-05-27 大众汽车瓦尔塔微电池研究有限责任两合公司 用于涂覆系统的可切换槽阀、涂覆系统和涂覆方法
CN105921360A (zh) * 2016-07-01 2016-09-07 深圳市华星光电技术有限公司 狭缝喷嘴和涂布装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208679633U (zh) * 2018-05-26 2019-04-02 深圳市信宇人科技股份有限公司 立式挤压涂布头

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06226181A (ja) * 1993-01-30 1994-08-16 Sumitomo Metal Ind Ltd スロットノズルコ−タ型塗装装置
EP1004931A1 (fr) * 1998-11-27 2000-05-31 Fuji Photo Film Co., Ltd. Appareil de revêtement
US20030080307A1 (en) * 2001-10-31 2003-05-01 Nordson Corporation Adjustable die for a fluid dispenser and method
US20140000518A1 (en) * 2012-06-27 2014-01-02 Tokyo Electron Limited Coating apparatus and method for filling coating liquid
CN104661760A (zh) * 2012-09-27 2015-05-27 大众汽车瓦尔塔微电池研究有限责任两合公司 用于涂覆系统的可切换槽阀、涂覆系统和涂覆方法
CN105921360A (zh) * 2016-07-01 2016-09-07 深圳市华星光电技术有限公司 狭缝喷嘴和涂布装置

Also Published As

Publication number Publication date
CN108480137A (zh) 2018-09-04
CN108480137B (zh) 2020-03-27

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