EP1660236B1 - Machine de fabrication d'une tete de pulverisation de produit fluide - Google Patents

Machine de fabrication d'une tete de pulverisation de produit fluide Download PDF

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Publication number
EP1660236B1
EP1660236B1 EP04767787A EP04767787A EP1660236B1 EP 1660236 B1 EP1660236 B1 EP 1660236B1 EP 04767787 A EP04767787 A EP 04767787A EP 04767787 A EP04767787 A EP 04767787A EP 1660236 B1 EP1660236 B1 EP 1660236B1
Authority
EP
European Patent Office
Prior art keywords
spray
pin
profile
orifice
head
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.)
Expired - Lifetime
Application number
EP04767787A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1660236A1 (fr
Inventor
Arnaud Helie
Philippe Herouin
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.)
Aptar France SAS
Original Assignee
Valois SAS
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 Valois SAS filed Critical Valois SAS
Publication of EP1660236A1 publication Critical patent/EP1660236A1/fr
Application granted granted Critical
Publication of EP1660236B1 publication Critical patent/EP1660236B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3494—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet the discharge outlet being not on the axis of the swirl chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49401—Fluid pattern dispersing device making, e.g., ink jet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49432—Nozzle making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49432—Nozzle making
    • Y10T29/49433—Sprayer

Definitions

  • the present invention relates to a method and a machine for manufacturing a fluid spray head.
  • Fluid dispensing heads especially in the field of pharmacy, are well known.
  • the head In order to obtain a finely sprayed distribution in the form of a spray, the head generally comprises a spray profile disposed just upstream of the spray orifice.
  • the characteristics of the spray in particular, the size distribution of the droplets and the reproducibility of these characteristics are largely dependent on the shape of said spray profile. It turns out that in most fluid dispensing devices, including drug, the performance is inconsistent due to manufacturing tolerances during molding of the head. This is explained in particular by the very small dimensions required especially for the spray orifice, and which involves using relatively fragile punches.
  • the spraying profile is molded inside the head by means of a pin inserted into a head cavity and which comprises on its front face, a profile complementary to the spray profile to be produced in the face. end of the expulsion channel made inside the head.
  • the punch used to make the spray orifice is generally provided in the bottom of the impression of the head.
  • the present invention aims to provide a method and a machine for manufacturing a fluid spray head that does not reproduce the aforementioned drawbacks.
  • the present invention aims to provide a method and a machine for manufacturing a fluid spray head, said head having consistent and reproducible product spray performance and characteristics for all heads from the same mold.
  • the present invention also aims to provide a method and a machine for manufacturing a fluid spray head that is simple and inexpensive to manufacture and assemble.
  • the present invention therefore relates to a method and a machine for manufacturing a fluid spray head according to claims 1 and 7.
  • Advantageous embodiments are set forth in the dependent claims.
  • the present invention applies to all types of fluid spray head.
  • the present description will, however, be made with reference to an elongated head, for example a nasal dispensing head, having a spray orifice directed in the axis of the head.
  • the present invention could be applied to all types of heads and in particular the heads in which the spray is distributed transversely.
  • the fluid spray head comprises an expulsion channel (not shown) which is provided with a spray orifice 1 and a spray profile 10 which is arranged upstream of said spray orifice 1
  • the spraying profile 10 is formed in the bottom wall of the expulsion channel and comprises, in known manner, non-radial spray channels 11 leading into a central spraying chamber 12 disposed directly upstream of said spray orifice 1. These channels can be three in number, as shown on the figure 1 , but another configuration is possible.
  • An insert is generally provided in said expulsion channel to limit the dead volume and form the bottom of said spray profile 10. This insert is advantageously of simple and elongated shape, such as a rod, and is introduced through the interior of the head, thus forming an internal jet.
  • the spray profile is formed in the bottom of the head so that the head is formed of only two parts, an outer part forming the head and an inner part forming the insert.
  • the product flowing in the expulsion channel around said insert arrives, at the front face thereof, in the non-radial channels 11 so that it enters the spray chamber 12 by swirling before to be expelled through the spray orifice 1 in the form of spray.
  • the present invention is characterized in that the central axis X of the spray orifice 1 is as identical as possible to the central axis Y of the spray chamber 12. More precisely, these two axes X and Y are eccentric a distance of less than 0.12 mm, preferably less than 0.08 mm.
  • a particularly advantageous embodiment relates to a dispensing head in which the spray chamber 12 has a diameter of about 1 mm and the spray orifice 1 has a diameter of about 0.3 mm. It turned out that the more the X and Y axes are eccentric the less the spray performance is good. Moreover, the constancy of the characteristics and performance of the spray is affected when the eccentricity of the axes varies from one head to the other.
  • the present invention advantageously provides that spray heads from the same mold cavity has a standard deviation, as regards the eccentricity of the central axis X of the spray orifice 1 relative to the central axis Y of the spray chamber 12, less than 0.03 mm, advantageously less than 0.02 mm, and preferably less than 0.01 mm.
  • the data in this table is interpreted as follows.
  • the average D10 means that 10% of the droplets have a size less than 24 microns with the method of the invention and less than 25 microns with the standard method. It is found that the deviation D10 with the process of the invention is very much lower than that with the standard method. This conclusion is also true with the averages D50 and D75, which demonstrates that the present invention makes it possible to obtain a more homogeneous, more constant spray and therefore having improved characteristics and performances compared to the standard manufacturing process.
  • FIG. 2 is more particularly the pin 100 being placed inside the head cavity (not shown), and which defines the central expulsion channel, and the end of the spray profile at its front face.
  • the pin 100 has on its front face a profile 110 which is complementary to the spray pattern 10 of the dispensing head.
  • This profile 110 may comprise projections forming the non-radial channels 11 and the spray chamber 12, as more precisely visible on the figure 5 .
  • the spindle 100 also incorporates the punch 120 to form the dispensing orifice 1.
  • This implementation makes it possible to guarantee consistency in the eccentricity between the axis X of the spray orifice and the Y axis of the spray chamber.
  • the dimensions of the punch 120 being very small (for example 0.3 mm) this punch breaks quite frequently during molding.
  • This implementation makes it easier to insert and especially to extract the punch from the spindle when it is necessary to replace it.
  • the rod 130 extends over a large part of the length of said pin 100 to allow its extraction by simply pushing at its bottom, possibly via a lateral opening.
  • the present invention thus makes it possible to improve the fluid dispensing heads by improving the characteristics and the performances of the spray that it delivers, as well as the constancy of these characteristics.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP04767787A 2003-08-04 2004-07-27 Machine de fabrication d'une tete de pulverisation de produit fluide Expired - Lifetime EP1660236B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309628A FR2858567B1 (fr) 2003-08-04 2003-08-04 Tete de pulverisation de produit fluide
PCT/FR2004/002005 WO2005018820A1 (fr) 2003-08-04 2004-07-27 Tete de pulverisation de produit fluide

Publications (2)

Publication Number Publication Date
EP1660236A1 EP1660236A1 (fr) 2006-05-31
EP1660236B1 true EP1660236B1 (fr) 2010-04-21

Family

ID=34073019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04767787A Expired - Lifetime EP1660236B1 (fr) 2003-08-04 2004-07-27 Machine de fabrication d'une tete de pulverisation de produit fluide

Country Status (7)

Country Link
US (3) US20070267522A1 (zh)
EP (1) EP1660236B1 (zh)
JP (1) JP4740848B2 (zh)
CN (1) CN100427216C (zh)
DE (1) DE602004026741D1 (zh)
FR (1) FR2858567B1 (zh)
WO (1) WO2005018820A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891583B2 (en) * 2008-10-30 2011-02-22 Gojo Industries, Inc. Dome pump spray assembly
CN104220769B (zh) * 2012-03-15 2018-03-30 Skf公司 具有内部面密封表面的旋转卡盘密封件
US9138772B2 (en) 2012-10-31 2015-09-22 Nordson Corporation Dispensing assembly and method using snap engagement of a mixer and a cartridge
EP3177405B1 (en) * 2014-08-06 2020-05-06 S.C. Johnson & Son, Inc. Spray inserts
FR3062581B1 (fr) * 2017-02-09 2021-09-24 Aptar France Sas Tete de pulverisation de produit fluide et utilisation d'une telle tete.
CN107855230A (zh) * 2017-11-28 2018-03-30 佛山科学技术学院 一种化工、医药液体喷雾装置
US12004502B2 (en) 2019-12-06 2024-06-11 The Procter & Gamble Company Pest control spray

Family Cites Families (27)

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US2904263A (en) * 1956-08-30 1959-09-15 Delavan Mfg Company Liquid spray nozzle
NL219346A (zh) * 1956-11-08
FR1257009A (fr) 1959-04-03 1961-03-31 Ind Werke Ag Deutsche Installation pour le moulage de noyaux
US3635406A (en) * 1970-05-27 1972-01-18 Clayton Corp One-piece spray head and core pin construction therefor
US3680793A (en) * 1970-11-09 1972-08-01 Delavan Manufacturing Co Eccentric spiral swirl chamber nozzle
FR2122053A5 (zh) * 1971-01-15 1972-08-25 Siebel Carl
JPS5539376B2 (zh) * 1972-07-26 1980-10-11
US4020979A (en) * 1975-10-15 1977-05-03 Summit Packaging Systems, Inc. Squeeze-bottle-type spray dispenser
DE2849599A1 (de) * 1978-11-15 1980-05-22 Schwarzkopf Gmbh Hans Aerosoldose mit einem feinstvernebelungsventil mit einer treibmittel enthaltenden fuellung, verfahren zu ihrer herstellung sowie ihre verwendung
US4367847A (en) * 1980-12-29 1983-01-11 Precision Valve Corporation One-piece mechanical break up (MBU)
ES272902Y (es) * 1983-06-14 1984-05-01 Workum Donald "pulverizador para recipientes deformables manualmente"
JPH0665484B2 (ja) * 1986-09-09 1994-08-24 住友重機械工業株式会社 打抜き孔付成形品用射出成形方法
US4805839A (en) * 1988-05-11 1989-02-21 S. C. Johnson & Son, Inc. Tilt-spray aerosol actuator button and dies
US4923448A (en) * 1988-12-06 1990-05-08 Mark Anderson Syringe with spray nozzle tip
JP2922935B2 (ja) * 1989-08-11 1999-07-26 東興薬品工業株式会社 粘稠液用鼻孔内噴霧容器の使捨てアダプタ
AU667868B2 (en) * 1992-01-15 1996-04-18 S.C. Johnson & Son, Inc. In-mold formation and assembly of actuator-overcap and insert nozzle
US5358179A (en) * 1993-08-18 1994-10-25 The Procter & Gamble Company Atomization systems for high viscosity products
US5664732A (en) * 1995-08-16 1997-09-09 Owens-Illinois Closure Inc. Nozzle for pump dispensers
DE19750068C1 (de) * 1997-11-12 1999-06-24 Lechler Gmbh & Co Kg Axial-Hohlkegeldüse zum Versprühen flüssiger Medien
FR2774367B1 (fr) * 1998-02-03 2000-03-24 Valois Sa Tete de distribution de pompe ou de valve
JP2000153188A (ja) * 1998-11-17 2000-06-06 Toyo Aerosol Ind Co Ltd 圧縮ガスエアゾール用押釦
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US6488413B1 (en) 1999-06-09 2002-12-03 Corning Cable Systems Llc Gating system for high precision molding
NL1012778C2 (nl) * 1999-08-05 2001-02-12 Axxicon Moulds Eindhoven Bv Verplaatsbaar ponsorgaan.
JP2001076991A (ja) * 1999-08-31 2001-03-23 Canon Inc 荷電粒子線露光装置及びその制御方法。
US6569370B1 (en) 2000-05-25 2003-05-27 Husky Injection Molding System Ltd. Injection molding system and method using cavity flange and neck ring insert
FR2816523B1 (fr) * 2000-11-15 2003-01-10 Oreal Tete de distribution nettoyable, et distributeur ainsi equipe

Also Published As

Publication number Publication date
US20100102477A1 (en) 2010-04-29
FR2858567B1 (fr) 2006-03-03
FR2858567A1 (fr) 2005-02-11
US8323020B2 (en) 2012-12-04
CN1849175A (zh) 2006-10-18
EP1660236A1 (fr) 2006-05-31
JP2007501113A (ja) 2007-01-25
DE602004026741D1 (de) 2010-06-02
JP4740848B2 (ja) 2011-08-03
WO2005018820A1 (fr) 2005-03-03
US8769818B2 (en) 2014-07-08
US20070267522A1 (en) 2007-11-22
US20110061236A1 (en) 2011-03-17
CN100427216C (zh) 2008-10-22

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