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FR2520661B1 - Dispositif anti-reflux equipant des machines de moulage de matieres plastiques par injection - Google Patents

Dispositif anti-reflux equipant des machines de moulage de matieres plastiques par injection

Info

Publication number
FR2520661B1
FR2520661B1 FR8301717A FR8301717A FR2520661B1 FR 2520661 B1 FR2520661 B1 FR 2520661B1 FR 8301717 A FR8301717 A FR 8301717A FR 8301717 A FR8301717 A FR 8301717A FR 2520661 B1 FR2520661 B1 FR 2520661B1
Authority
FR
France
Prior art keywords
injection molding
device equipped
plastic injection
molding machines
reflux device
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
Application number
FR8301717A
Other languages
English (en)
Other versions
FR2520661A1 (fr
Inventor
Martin Eichlseder
Erwin Burkle
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei AG
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 Krauss Maffei AG filed Critical Krauss Maffei AG
Publication of FR2520661A1 publication Critical patent/FR2520661A1/fr
Application granted granted Critical
Publication of FR2520661B1 publication Critical patent/FR2520661B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Check Valves (AREA)
FR8301717A 1982-02-04 1983-02-03 Dispositif anti-reflux equipant des machines de moulage de matieres plastiques par injection Expired FR2520661B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823203762 DE3203762A1 (de) 1982-02-04 1982-02-04 Rueckstroemsperre

Publications (2)

Publication Number Publication Date
FR2520661A1 FR2520661A1 (fr) 1983-08-05
FR2520661B1 true FR2520661B1 (fr) 1986-09-26

Family

ID=6154762

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8301717A Expired FR2520661B1 (fr) 1982-02-04 1983-02-03 Dispositif anti-reflux equipant des machines de moulage de matieres plastiques par injection

Country Status (5)

Country Link
US (1) US4477242A (fr)
JP (1) JPS58134287A (fr)
DE (1) DE3203762A1 (fr)
FR (1) FR2520661B1 (fr)
IT (1) IT1168759B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612644A1 (de) * 1985-04-16 1986-10-16 Ube Industries, Ltd., Ube, Yamaguchi Einspritzvorrichtung
US4850851A (en) * 1988-01-07 1989-07-25 Cincinnati Milacron, Inc. Anti-backflow valve for injection molding machines
JPS6487218A (en) * 1987-09-30 1989-03-31 Ngk Insulators Ltd Backflow prevention valve for injection molding machine
ES2011346A6 (es) * 1988-05-12 1990-01-01 Pena Roca Juan Cierre perfeccionado para husillos de piston en las maquinas de inyeccion de plastico.
US4988281A (en) * 1989-09-07 1991-01-29 Husky Injection Molding Systems Ltd. Valve assembly for injection molding machine
US5044926A (en) * 1990-06-25 1991-09-03 Cincinnati Milacron Inc. Anti-backflow valve for injection molding machines
US5229145A (en) * 1990-06-27 1993-07-20 David Brown Multi-level stacked mold system
US5458843A (en) * 1990-06-27 1995-10-17 Tradesco Mold Limited Pin-less drool prevention system
US5112213A (en) * 1991-02-26 1992-05-12 Van Dorn Company Driven ring-type non-return valve for injection molding
JP3076099B2 (ja) * 1991-09-03 2000-08-14 住友重機械プラスチックマシナリー株式会社 スクリュヘッド構造体
US5370518A (en) * 1992-01-29 1994-12-06 Kabushiki Kaisha Komatsu Seisakusho Apparatus for injection and compression molding
CA2143244C (fr) * 1994-02-24 1999-04-20 Mikiyoshi Miyauchi Tete de vis pour machine a mouler par injection
US5599096A (en) * 1996-03-04 1997-02-04 Rog; Aleksandr Disc screw extruder with free-floating operating member
DE19716127C1 (de) * 1997-04-17 1998-03-05 Krauss Maffei Ag Extruderschnecke
US6203311B1 (en) * 1998-05-04 2001-03-20 Robert F. Dray Sliding ring non-return valve
US6200127B1 (en) 1999-02-26 2001-03-13 Milacron Inc. Bi-directional check ring for a two-stage injection unit
US6168411B1 (en) 1999-03-18 2001-01-02 Dynisco Extrusion, Inc. Polymer filtration method and apparatus
US6585001B2 (en) * 2000-11-30 2003-07-01 Spirex Corporation Flow through ring valve for plastic extruding systems
US6957953B2 (en) * 2003-02-20 2005-10-25 Graham Packaging Company, L.P. Reservoir reducing screw tip
US7104775B2 (en) * 2003-03-27 2006-09-12 Lg Cable Ltd. Injection unit having rotatable device for preventing reverse flow
US7510387B2 (en) * 2004-06-30 2009-03-31 Husky Injection Molding Systems Ltd. Control system for dynamic feed coinjection process
US20070047380A1 (en) * 2005-08-30 2007-03-01 Benjamin Craig A Extruder screw tip
US20070065538A1 (en) * 2005-09-16 2007-03-22 Husky Injection Molding Systems Ltd. Molding system having valve including pump
JP4820162B2 (ja) * 2005-12-15 2011-11-24 スパイラル ロジック エルティディ スクリュー、射出装置及び圧力部材
TWI405657B (zh) * 2007-02-09 2013-08-21 Sumitomo Heavy Industries Screw and injection device
JP5351775B2 (ja) * 2007-03-10 2013-11-27 クール オプションズ，インコーポレーテッド 金属射出成形のためのスクリュ設計及び方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1242329A (fr) * 1959-08-17 1960-09-30 Mach Foucher Perfectionnements apportés aux machines pour le moulage des matières plastiques
US3319299A (en) * 1965-04-19 1967-05-16 Dorn Co V Injection molding nozzle
GB1137043A (en) * 1967-01-04 1968-12-18 Turner Machinery Ltd Injection moulding machines
JPS5214659A (en) * 1975-07-25 1977-02-03 Mitsubishi Heavy Ind Ltd Injection molding machine
DE2617977A1 (de) * 1976-04-24 1977-11-10 Gkn Windsor Gmbh Vorrichtung zum plastifizieren und schmelzen von kunststoff mit einem beheizbaren plastifizierzylinder
DE2635144A1 (de) * 1976-08-05 1978-02-09 Demag Kunststofftech Rueckstroemsperre an schneckenspritzgiessmaschinen
DE3009399A1 (de) * 1980-03-12 1981-09-24 Fa. Johannes Panick, 4730 Ahlen Plastifizierzylinder fuer kunststoff-spritzgiessmaschinen
DE3240872C2 (de) * 1982-11-05 1986-10-09 Erich 7141 Steinheim Blattert Rückstromsperre für eine Schnecken-Spritzgießmaschine

Also Published As

Publication number Publication date
JPS58134287A (ja) 1983-08-10
IT1168759B (it) 1987-05-20
IT8347638A0 (it) 1983-01-31
DE3203762A1 (de) 1983-08-11
US4477242A (en) 1984-10-16
IT8347638A1 (it) 1984-07-31
FR2520661A1 (fr) 1983-08-05

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Legal Events

Date Code Title Description
ST Notification of lapse