EP1077331A3 - Liquid drop spraying apparatus - Google Patents

Liquid drop spraying apparatus Download PDF

Info

Publication number
EP1077331A3
EP1077331A3 EP00307094A EP00307094A EP1077331A3 EP 1077331 A3 EP1077331 A3 EP 1077331A3 EP 00307094 A EP00307094 A EP 00307094A EP 00307094 A EP00307094 A EP 00307094A EP 1077331 A3 EP1077331 A3 EP 1077331A3
Authority
EP
European Patent Office
Prior art keywords
introducing hole
flow path
face
liquid drop
diameter
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.)
Withdrawn
Application number
EP00307094A
Other languages
German (de)
French (fr)
Other versions
EP1077331A2 (en
Inventor
Toshikazu Hirota
Takao Ohnishi
Motoo Noritake
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP1077331A2 publication Critical patent/EP1077331A2/en
Publication of EP1077331A3 publication Critical patent/EP1077331A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F04B43/043—Micropumps
    • F04B43/046—Micropumps with piezoelectric drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2002/14306—Flow passage between manifold and chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14419—Manifold

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Nozzles (AREA)
  • Special Spraying Apparatus (AREA)
  • Ink Jet (AREA)

Abstract

In a liquid drop spraying or ejecting device, an introducing hole 12 is provided in orthogonal direction relative to the lower face of a pressure chamber lOn, and is vertically connected to the upper face of a flow path 20. Immediately underneath the introducing hole 12, a shock wave absorption face 21 with a depth D that is twice the diameter L of the introducing hole 12 is formed as a protrusion of the lower face of the flow path 20. In addition, the shock absorption face 21 is wider than the diameter of the circle of the introducing hole 12, and a stepped portion 22 is formed at its periphery. In this manner, in a device having a plurality of the pressure chambers and the liquid is pressurised by a piezoelectric/electrostrictive element for the purpose of spraying, back flow generated at the flow path from the introducing hole is reduced.
EP00307094A 1999-08-19 2000-08-18 Liquid drop spraying apparatus Withdrawn EP1077331A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP23327799 1999-08-19
JP23327799 1999-08-19
JP2000225953A JP2001121693A (en) 1999-08-19 2000-07-26 Liquid drop spray unit
JP2000225953 2000-07-26

Publications (2)

Publication Number Publication Date
EP1077331A2 EP1077331A2 (en) 2001-02-21
EP1077331A3 true EP1077331A3 (en) 2002-09-25

Family

ID=26530957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00307094A Withdrawn EP1077331A3 (en) 1999-08-19 2000-08-18 Liquid drop spraying apparatus

Country Status (2)

Country Link
EP (1) EP1077331A3 (en)
JP (1) JP2001121693A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4666822B2 (en) * 2000-07-10 2011-04-06 キヤノン株式会社 Liquid discharge recording head
JP4639002B2 (en) * 2001-06-13 2011-02-23 株式会社リコー Ink supply apparatus, recording head, and inkjet recording apparatus
US6554591B1 (en) * 2001-11-26 2003-04-29 Motorola, Inc. Micropump including ball check valve utilizing ceramic technology and method of fabrication
US6926382B2 (en) 2002-04-25 2005-08-09 Brother Kogyo Kabushiki Kaisha Ink-jet head and ink-jet printer
JP4292841B2 (en) * 2003-03-24 2009-07-08 富士ゼロックス株式会社 Ink jet recording head and ink jet recording apparatus
JP3928594B2 (en) * 2003-06-30 2007-06-13 ブラザー工業株式会社 Inkjet head
JP4274084B2 (en) * 2004-08-27 2009-06-03 ブラザー工業株式会社 Inkjet head
JP4274085B2 (en) * 2004-08-27 2009-06-03 ブラザー工業株式会社 Inkjet head
JP4735144B2 (en) * 2005-09-13 2011-07-27 ブラザー工業株式会社 Inkjet recording device
JP2007090638A (en) * 2005-09-28 2007-04-12 Brother Ind Ltd Recording head and ink jet recording apparatus
JP4826732B2 (en) * 2005-10-26 2011-11-30 ブラザー工業株式会社 Droplet ejector
EP1832424B1 (en) * 2006-03-06 2009-12-16 Brother Kogyo Kabushiki Kaisha Liquid droplet spraying apparatus
JP4941038B2 (en) * 2007-03-23 2012-05-30 ブラザー工業株式会社 Droplet discharge device
KR101101623B1 (en) * 2009-10-29 2012-01-02 삼성전기주식회사 Inkjet print head
JP5364084B2 (en) * 2010-03-16 2013-12-11 パナソニック株式会社 Inkjet device
JP5223934B2 (en) 2010-03-29 2013-06-26 パナソニック株式会社 Inkjet device
JP5302378B2 (en) 2011-01-14 2013-10-02 パナソニック株式会社 Inkjet head
JP6439357B2 (en) * 2014-09-29 2018-12-19 ブラザー工業株式会社 Liquid ejector
JP6786909B2 (en) * 2016-06-29 2020-11-18 セイコーエプソン株式会社 Liquid injection head and liquid injection device
JP6857807B2 (en) 2017-02-08 2021-04-14 パナソニックＩｐマネジメント株式会社 Inkjet printing method
CN108394197B (en) 2017-02-08 2021-07-27 松下知识产权经营株式会社 inkjet printing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058912A1 (en) * 1981-02-19 1982-09-01 Karl Harvid Melin Front end loader
EP0700783A2 (en) * 1994-07-01 1996-03-13 Seiko Epson Corporation Ink jet recording apparatus
JPH10235881A (en) * 1997-02-28 1998-09-08 Sony Corp Manufacturing method of printer device
US5906481A (en) * 1995-05-23 1999-05-25 Fujitsu Limited Piezoelectric fluid pump
WO1999038694A1 (en) * 1998-01-28 1999-08-05 Seiko Epson Corporation Liquid jet structure, ink jet type recording head and printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058912A1 (en) * 1981-02-19 1982-09-01 Karl Harvid Melin Front end loader
EP0700783A2 (en) * 1994-07-01 1996-03-13 Seiko Epson Corporation Ink jet recording apparatus
US5906481A (en) * 1995-05-23 1999-05-25 Fujitsu Limited Piezoelectric fluid pump
JPH10235881A (en) * 1997-02-28 1998-09-08 Sony Corp Manufacturing method of printer device
WO1999038694A1 (en) * 1998-01-28 1999-08-05 Seiko Epson Corporation Liquid jet structure, ink jet type recording head and printer

Also Published As

Publication number Publication date
EP1077331A2 (en) 2001-02-21
JP2001121693A (en) 2001-05-08

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