WO2004050325A1 - Procede et dispositif de realisation de pieces en plastique - Google Patents

Procede et dispositif de realisation de pieces en plastique Download PDF

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Publication number
WO2004050325A1
WO2004050325A1 PCT/CH2003/000724 CH0300724W WO2004050325A1 WO 2004050325 A1 WO2004050325 A1 WO 2004050325A1 CH 0300724 W CH0300724 W CH 0300724W WO 2004050325 A1 WO2004050325 A1 WO 2004050325A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection
melt
injection molding
degassing
melt flow
Prior art date
Application number
PCT/CH2003/000724
Other languages
German (de)
English (en)
Inventor
Robert Weinmann
Original Assignee
Netstal-Maschinen 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
Priority claimed from PCT/CH2003/000122 external-priority patent/WO2004050324A1/fr
Application filed by Netstal-Maschinen Ag filed Critical Netstal-Maschinen Ag
Priority to EP03757625A priority Critical patent/EP1567315A1/fr
Priority to AU2003273716A priority patent/AU2003273716A1/en
Priority to CA002508466A priority patent/CA2508466A1/fr
Publication of WO2004050325A1 publication Critical patent/WO2004050325A1/fr

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
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/535—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston using two or more cooperating injection rams, e.g. coaxially or alternately operating rams
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • B29C45/542—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw using an accumulator between plasticising and injection unit, e.g. for a continuously operating plasticising screw
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • B29C2045/545—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw alternately operating injection plungers
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • B29C2045/547—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw continuously rotating plasticising screw cooperating with a single injection plunger
    • 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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • B29C2045/548—Reciprocating plasticising screws
    • 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
    • B29C45/58—Details
    • B29C45/63—Venting or degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

La présente invention concerne un procédé et un dispositif pour réaliser des pièces moulées par injection, notamment des préformes (12), la matière en fusion liquide étant prise en charge directement par un dispositif de production chimique (1) et alimentant une machine de moulage par injection (13) en continu. Lorsqu'il s'agit d'une matière en fusion qui se trouve dans un état dégazé prêt à l'injection, le flux continu de matière en fusion alimente par exemple au moins deux cylindres d'injection (21, 22) comprenant des pistons d'injection (24, 25) commandés ou régulés qui servent à mettre en oeuvre le cycle d'injection de façon symétrique par rapport au temps de chargement desdits cylindres. Le flux continu de matière en fusion est dégazé côté machine jusqu'à ce que le niveau de dégazage nécessaire soit atteint, par ex. dans une extrudeuse de dégazage, une vis sans fin de dégazage (60, 81) ou un pré-accumulateur (21, 22, 62, 90). Le dispositif permet la réalisation de pièces moulées par injection, en particulier de préformes (12), la matière en fusion liquide étant prise en charge directement par un dispositif de production chimique (1) et pouvant alimenter une machine de moulage par injection (3) en continu, pour permettre la réalisation cyclique de pièces moulées par injection dans des moules de moulage par injection.
PCT/CH2003/000724 2002-12-04 2003-10-30 Procede et dispositif de realisation de pieces en plastique WO2004050325A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03757625A EP1567315A1 (fr) 2002-12-04 2003-10-30 Procede et dispositif de realisation de pieces en plastique
AU2003273716A AU2003273716A1 (en) 2002-12-04 2003-10-30 Method and installation for producing plastic parts
CA002508466A CA2508466A1 (fr) 2002-12-04 2003-10-30 Procede et dispositif de realisation de pieces en plastique

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH2055/02 2002-12-04
CH20552002 2002-12-04
CHPCT/CH03/00122 2003-02-19
PCT/CH2003/000122 WO2004050324A1 (fr) 2002-12-04 2003-02-19 Procede et dispositif pour realiser des pieces moulees par injection
CH7962003 2003-05-06
CH796/03 2003-05-06

Publications (1)

Publication Number Publication Date
WO2004050325A1 true WO2004050325A1 (fr) 2004-06-17

Family

ID=34888107

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2003/000724 WO2004050325A1 (fr) 2002-12-04 2003-10-30 Procede et dispositif de realisation de pieces en plastique

Country Status (4)

Country Link
EP (1) EP1567315A1 (fr)
AU (1) AU2003273716A1 (fr)
CA (1) CA2508466A1 (fr)
WO (1) WO2004050325A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2374598A1 (fr) * 2010-04-09 2011-10-12 Wittmann Battenfeld GmbH Unité de plastification et d'injection d'une machine de moulage par injection et procédé de moulage par injection
EP2445695A1 (fr) * 2009-06-25 2012-05-02 Husky Injection Molding Systems S.A. Système de moulage par injection comprenant un filtre, pour matériaux en fusion, situé avant une première occurrence d'accumulation de matériaux en fusion
EP2459359A1 (fr) * 2009-07-31 2012-06-06 Husky Injection Molding Systems S.A. Procédé de commande de multiples pots d injection
GB2520769A (en) * 2013-12-02 2015-06-03 Subsea 7 Ltd Techniques for coating pipeline field joints
US9090011B2 (en) 2013-09-13 2015-07-28 Athena Automation Ltd. Two stage injection unit rotary valve
IT202000001687A1 (it) * 2020-01-29 2021-07-29 Sacmi Apparato e metodo per produrre oggetti tramite stampaggio a iniezione.
IT202100028796A1 (it) * 2021-11-12 2023-05-12 Sipa Progettazione Automaz Apparato di iniezione per produrre articoli cavi di plastica, in particolare preforme di bottiglie

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7643900B2 (en) 2007-08-13 2010-01-05 Husky Injection Molding Systems Ltd. Method of controlling a screw in a two-stage injection unit and a system for implementing the method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281384A (en) * 1992-06-15 1994-01-25 Western Container Corporation Improved method for transfer of molding material in two stage injection molding units during molding of preforms
US5454995A (en) * 1994-04-18 1995-10-03 Cincinnati Milacron, Inc. Method for reducing cycle time in an injection molding machine
WO1998041381A1 (fr) * 1997-03-20 1998-09-24 Eastman Chemical Company Appareil et procede de moulage d'articles en polyester directement a partir d'une matiere fondue
US5980797A (en) * 1997-03-20 1999-11-09 Eastman Chemical Company Apparatus and method for molding polyester articles having low acetaldehyde content directly from the melt formation using flash tank devoltatilization
EP1013397A1 (fr) * 1998-12-25 2000-06-28 Murata Manufacturing Co., Ltd. Machine à mouler par injection pour matière thermoplastique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281384A (en) * 1992-06-15 1994-01-25 Western Container Corporation Improved method for transfer of molding material in two stage injection molding units during molding of preforms
US5454995A (en) * 1994-04-18 1995-10-03 Cincinnati Milacron, Inc. Method for reducing cycle time in an injection molding machine
WO1998041381A1 (fr) * 1997-03-20 1998-09-24 Eastman Chemical Company Appareil et procede de moulage d'articles en polyester directement a partir d'une matiere fondue
US5980797A (en) * 1997-03-20 1999-11-09 Eastman Chemical Company Apparatus and method for molding polyester articles having low acetaldehyde content directly from the melt formation using flash tank devoltatilization
EP1013397A1 (fr) * 1998-12-25 2000-06-28 Murata Manufacturing Co., Ltd. Machine à mouler par injection pour matière thermoplastique

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2445695A1 (fr) * 2009-06-25 2012-05-02 Husky Injection Molding Systems S.A. Système de moulage par injection comprenant un filtre, pour matériaux en fusion, situé avant une première occurrence d'accumulation de matériaux en fusion
EP2445695A4 (fr) * 2009-06-25 2012-12-05 Husky Injection Molding Système de moulage par injection comprenant un filtre, pour matériaux en fusion, situé avant une première occurrence d'accumulation de matériaux en fusion
US8628323B2 (en) 2009-06-25 2014-01-14 Husky Injection Molding Systems Ltd. Injection molding system including a melt filter, the filter being located before first instance of melt accumulation
EP2459359A1 (fr) * 2009-07-31 2012-06-06 Husky Injection Molding Systems S.A. Procédé de commande de multiples pots d injection
EP2459359A4 (fr) * 2009-07-31 2013-04-03 Husky Injection Molding Procédé de commande de multiples pots d injection
EP2374598A1 (fr) * 2010-04-09 2011-10-12 Wittmann Battenfeld GmbH Unité de plastification et d'injection d'une machine de moulage par injection et procédé de moulage par injection
US9090011B2 (en) 2013-09-13 2015-07-28 Athena Automation Ltd. Two stage injection unit rotary valve
GB2520769A (en) * 2013-12-02 2015-06-03 Subsea 7 Ltd Techniques for coating pipeline field joints
GB2520769B (en) * 2013-12-02 2016-03-09 Subsea 7 Ltd Techniques for coating pipeline field joints
EP3077174B1 (fr) * 2013-12-02 2019-07-17 Subsea 7 Limited Appareil et techniques de revêtement de joints de tuyauterie sur le terrain
US10479008B2 (en) 2013-12-02 2019-11-19 Subsea 7 Limited Apparatus and techniques for coating pipeline field joints
IT202000001687A1 (it) * 2020-01-29 2021-07-29 Sacmi Apparato e metodo per produrre oggetti tramite stampaggio a iniezione.
IT202100028796A1 (it) * 2021-11-12 2023-05-12 Sipa Progettazione Automaz Apparato di iniezione per produrre articoli cavi di plastica, in particolare preforme di bottiglie
WO2023084463A1 (fr) * 2021-11-12 2023-05-19 S.I.P.A. Societa' Industrializzazione Progettazione E Automazione S.P.A. Appareil d'injection pour la production d'articles creux en plastique, en particulier de préformes de bouteille

Also Published As

Publication number Publication date
AU2003273716A1 (en) 2004-06-23
CA2508466A1 (fr) 2004-06-17
EP1567315A1 (fr) 2005-08-31

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