EP1212142B1 - Plural component material mixer - Google Patents

Plural component material mixer Download PDF

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Publication number
EP1212142B1
EP1212142B1 EP00965000A EP00965000A EP1212142B1 EP 1212142 B1 EP1212142 B1 EP 1212142B1 EP 00965000 A EP00965000 A EP 00965000A EP 00965000 A EP00965000 A EP 00965000A EP 1212142 B1 EP1212142 B1 EP 1212142B1
Authority
EP
European Patent Office
Prior art keywords
plural component
component material
material mixer
mixer
static mixer
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
EP00965000A
Other languages
German (de)
French (fr)
Other versions
EP1212142A1 (en
EP1212142A4 (en
Inventor
Arnd Fuellenbach
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.)
Graco Minnesota Inc
Original Assignee
Graco Minnesota Inc
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 Graco Minnesota Inc filed Critical Graco Minnesota Inc
Publication of EP1212142A1 publication Critical patent/EP1212142A1/en
Publication of EP1212142A4 publication Critical patent/EP1212142A4/en
Application granted granted Critical
Publication of EP1212142B1 publication Critical patent/EP1212142B1/en
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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet

Definitions

  • Mixers for plural component materials such as epoxies and polyurethanes.
  • US 5887975 discloses an in-line plural component mixing system.
  • the instant invention generally designated 10 is comprised of a plural component mixing machine 12 having a integrator 14 followed by a static mixer 16.
  • the outlet 16a of static mixer 16 is connected to a spray tip 18 which can be a conventional airless spray tip such as those manufactured by Graco Inc. or any number of other manufacturers.
  • Airless spray tip 18 is in turn connected to a fluid line 20 which may be in turn connected to an application device 22 such as a spray gun or the like.

Description

    TECHNICAL FIELD
  • Mixers for plural component materials such as epoxies and polyurethanes.
    • BACKGROUND ART
  • For environmental and finish quality reasons, plural component paints and other materials have become increasingly popular in recent years. Various manufacturers produce equipment for metering and mixing the plural components for the application to various substrates. More particularly, the waterborne materials have presented a particular problem in terms of mixing and blending the materials. While devices such as Graco's PRECISIONMIX® plural component equipment have received a great deal of acceptance in the industry for mixing such materials, some have proven stubborn in achieving the final mix. A jet dispersion device produced by Bayer has proven capable of mixing such materials but is somewhat complicated and relatively difficult to flush.
  • US 5887975 discloses an in-line plural component mixing system.
    • DISCLOSURE OF THE INVENTION
  • It is therefore an object of this invention to produce a mixer which is capable of producing a homogeneously mixed material even out of hard-to-mix components. Towards that end, typical sequential metering devices such as the aforementioned PRECISIONMIX® utilize an integrator followed by a static mixer in order to perform the mixing. In the instant invention, the outlet of the static mixer is connected to a conventional airless tip located inline on the line to the spray gun or other application device. A tip size is utilized such that a pressure drop of 10 - 30 bar is maintained through the airless tip which will provide a suitable pressure drop. One example of this would be the use of a .8mm tip in a 5mm fluid line.
  • These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views.
    • BRIEF DESCRIPTION OF DRAWINGS
    • Fig 1 is a schematic layout of the instant invention.
    BEST MODE FOR CARRYING OUT THE INVENTION
  • The instant invention generally designated 10 is comprised of a plural component mixing machine 12 having a integrator 14 followed by a static mixer 16. The outlet 16a of static mixer 16 is connected to a spray tip 18 which can be a conventional airless spray tip such as those manufactured by Graco Inc. or any number of other manufacturers. Airless spray tip 18 is in turn connected to a fluid line 20 which may be in turn connected to an application device 22 such as a spray gun or the like.
  • It is contemplated that various changes and modifications may be made to the plural component material mixer without departing from the spirit and scope of the invention as defined by the following claims.

Claims (1)

  1. A plural component material mixer (10) having a sequential metering unit (12), an integrator (14) connected to the output of said metering unit (12) and a static mixer (16) connected to the output of said integrator (14) and an application device (22) connected to the output of said static mixer (16), characterised in that the plural component material mixer further comprises an airless spray tip (18) connected between said static mixer (16) and said application device (22), wherein said airless spray tip (18) is sized to produce a pressure drop across said airless spray tip (18) of about 10-30 bar.
EP00965000A 1999-09-16 2000-09-14 Plural component material mixer Expired - Lifetime EP1212142B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15425299P 1999-09-16 1999-09-16
US154252P 1999-09-16
PCT/US2000/025174 WO2001019526A1 (en) 1999-09-16 2000-09-14 Plural component material mixer

Publications (3)

Publication Number Publication Date
EP1212142A1 EP1212142A1 (en) 2002-06-12
EP1212142A4 EP1212142A4 (en) 2005-07-20
EP1212142B1 true EP1212142B1 (en) 2007-05-09

Family

ID=22550618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00965000A Expired - Lifetime EP1212142B1 (en) 1999-09-16 2000-09-14 Plural component material mixer

Country Status (7)

Country Link
EP (1) EP1212142B1 (en)
JP (1) JP2004503352A (en)
KR (1) KR100685332B1 (en)
AU (1) AU7579700A (en)
DE (1) DE60034798T2 (en)
ES (1) ES2284527T3 (en)
WO (1) WO2001019526A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0201855D0 (en) 2002-06-18 2002-06-18 Siemens Elema Ab Gas dosing device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5830813B2 (en) * 1978-08-07 1983-07-01 日本ユ−ボ−ド工業株式会社 Mixing and discharging device for foaming synthetic resin stock solution
JPS6190765A (en) * 1984-10-11 1986-05-08 Toyota Motor Corp Method for detecting abnormal flow rate in multiple liquid painting
JPS6432758A (en) * 1987-07-29 1989-02-02 Brother Ind Ltd Electronic blackboard with function to expand and display datum on hand
US5490726A (en) * 1992-12-30 1996-02-13 Nordson Corporation Apparatus for proportioning two components to form a mixture
US5407267A (en) * 1992-12-30 1995-04-18 Nordson Corporation Method and apparatus for forming and dispensing coating material containing multiple components
JP2769962B2 (en) * 1993-04-21 1998-06-25 アロイ工器株式会社 Air-added sprayer suitable for painting
JPH0847657A (en) * 1994-08-08 1996-02-20 Asahi Sanac Kk Air assist airless manual spray coating apparatus
JPH1034040A (en) * 1996-04-16 1998-02-10 Graco Inc Chip assembly
US5887975A (en) * 1997-09-30 1999-03-30 The Boeing Company Multiple component in-line paint mixing system

Also Published As

Publication number Publication date
KR20020033806A (en) 2002-05-07
AU7579700A (en) 2001-04-17
DE60034798D1 (en) 2007-06-21
JP2004503352A (en) 2004-02-05
ES2284527T3 (en) 2007-11-16
EP1212142A1 (en) 2002-06-12
EP1212142A4 (en) 2005-07-20
DE60034798T2 (en) 2007-10-18
KR100685332B1 (en) 2007-02-22
WO2001019526A1 (en) 2001-03-22

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