WO2006042942A8 - Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage - Google Patents

Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage

Info

Publication number
WO2006042942A8
WO2006042942A8 PCT/FR2005/002537 FR2005002537W WO2006042942A8 WO 2006042942 A8 WO2006042942 A8 WO 2006042942A8 FR 2005002537 W FR2005002537 W FR 2005002537W WO 2006042942 A8 WO2006042942 A8 WO 2006042942A8
Authority
WO
WIPO (PCT)
Prior art keywords
matrix
injection
moulding
cavity
chamber
Prior art date
Application number
PCT/FR2005/002537
Other languages
English (en)
Other versions
WO2006042942A1 (fr
Inventor
Louis Ramond
Original Assignee
Delachaux Sa
Louis Ramond
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 Delachaux Sa, Louis Ramond filed Critical Delachaux Sa
Priority to EP05809095A priority Critical patent/EP1799423A1/fr
Publication of WO2006042942A1 publication Critical patent/WO2006042942A1/fr
Publication of WO2006042942A8 publication Critical patent/WO2006042942A8/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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C2045/2759—Nozzle centering or guiding means
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C2045/2761—Seals between nozzle and mould or gate

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un dispositif d'injection d'une matière thermoplastique à l'état liquide dans une empreinte de moulage. A proximité de l'empreinte (4) de moulage, une bague (31) de centrage et d'isolation thermique, intercalée entre des faces périphériques extérieures d'une buse d'injection (14) et des faces périphériques intérieures d'une cavité (6) d'une matrice (1) définissant partiellement l'empreinte (4), présente, dans le sens d'injection (2), deux lèvres (49, 50), respectivement extérieure et intérieure, dont au moins la lèvre intérieure (50) affleure une face périphérique intérieure (8, 9), s'évasant vers l'arrière, de la cavité (6) de la matrice (1) pour délimiter dans celle-ci une chambre (24) débouchant par un orifice d'injection (7) et une chambre fermée (51). La quantité de matière thermoplastique perdue à chaque changement de couleur est réduite, l’étanchéité à l’encontre des fuites est accrue, ainsi que l'isolation thermique entre la buse (14) et la matrice (1).
PCT/FR2005/002537 2004-10-15 2005-10-13 Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage WO2006042942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05809095A EP1799423A1 (fr) 2004-10-15 2005-10-13 Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0410923 2004-10-15
FR0410923A FR2876619B1 (fr) 2004-10-15 2004-10-15 Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage

Publications (2)

Publication Number Publication Date
WO2006042942A1 WO2006042942A1 (fr) 2006-04-27
WO2006042942A8 true WO2006042942A8 (fr) 2006-07-13

Family

ID=34951907

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2005/002537 WO2006042942A1 (fr) 2004-10-15 2005-10-13 Dispositif d'injection-moulage a etancheite renforcee entre buse d'injection et matrice de moulage

Country Status (3)

Country Link
EP (1) EP1799423A1 (fr)
FR (1) FR2876619B1 (fr)
WO (1) WO2006042942A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918663B2 (en) 2009-03-05 2011-04-05 Mold-Masters (2007) Limited Injection molding nozzle wedge seal
US7874833B2 (en) 2009-05-03 2011-01-25 Mold-Masters (2007) Limited Injection molding runner apparatus having pressure seal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3833220C2 (de) * 1988-09-30 1998-04-30 Agfa Gevaert Ag Nadelverschlußdüse in einem Spritzgießwerkzeug zur Verarbeitung thermoplastischer Kunststoffe
DE9002048U1 (fr) * 1990-02-21 1990-04-19 Sfr-Formenbau Dangelmaier Gmbh, 7410 Reutlingen, De
CA2250598A1 (fr) * 1998-10-16 2000-04-16 Jobst Ulrich Gellert Appareil pour localiser et sceller une buse de moulage par injection

Also Published As

Publication number Publication date
FR2876619A1 (fr) 2006-04-21
EP1799423A1 (fr) 2007-06-27
FR2876619B1 (fr) 2007-01-05
WO2006042942A1 (fr) 2006-04-27

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