CA2281065A1 - Thermally insulated runner manifold and injection nozzle construction for plastic molding apparatus - Google Patents

Thermally insulated runner manifold and injection nozzle construction for plastic molding apparatus Download PDF

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Publication number
CA2281065A1
CA2281065A1 CA002281065A CA2281065A CA2281065A1 CA 2281065 A1 CA2281065 A1 CA 2281065A1 CA 002281065 A CA002281065 A CA 002281065A CA 2281065 A CA2281065 A CA 2281065A CA 2281065 A1 CA2281065 A1 CA 2281065A1
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CA
Canada
Prior art keywords
manifold
injection nozzle
plastic molding
molding
transfer
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.)
Granted
Application number
CA002281065A
Other languages
French (fr)
Other versions
CA2281065C (en
Inventor
Joseph P. Ouellette
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2281065A1 publication Critical patent/CA2281065A1/en
Application granted granted Critical
Publication of CA2281065C publication Critical patent/CA2281065C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • B29C45/2725—Manifolds
    • 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
    • B29C2045/2795—Insulated runners
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/227—Injection nozzle; positioned flush with mold or cavity
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/229—Injection mold runner valve

Abstract

An improved injection molding runnerless manifold and nozzle system, method and apparatus in which the fluid plastic molding material transfer conduits, such as the manifold runner channels and cavity injection nozzle passageway, are constructed of a low thermal conductivity, non-metallic heat insulation structural material to thereby heat insulate the liquified molding material or resin, whether thermosetting or thermoplastic, while resident in the manifold runners and/or nozzle passageways. The heat transfer and other physical parameters of the conduit material and structure are such that this molding material remains at a reasonable uncured molding temperature while resident in the transfer conduit for the duration of at least one injection cycle due to the heat insulation characteristics of these fluid flow conduits of the system.
CA002281065A 1998-08-25 1999-08-24 Thermally insulated runner manifold and injection nozzle construction for plastic molding apparatus Expired - Fee Related CA2281065C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9777998P 1998-08-25 1998-08-25
US60/097,779 1998-08-25
US09/374,970 US6419476B1 (en) 1998-08-25 1999-08-16 Thermally insulated runner manifold and injection nozzle construction for plastic molding apparatus
US09/374,970 1999-08-16

Publications (2)

Publication Number Publication Date
CA2281065A1 true CA2281065A1 (en) 2000-02-25
CA2281065C CA2281065C (en) 2008-08-12

Family

ID=26793633

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002281065A Expired - Fee Related CA2281065C (en) 1998-08-25 1999-08-24 Thermally insulated runner manifold and injection nozzle construction for plastic molding apparatus

Country Status (2)

Country Link
US (2) US6419476B1 (en)
CA (1) CA2281065C (en)

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Also Published As

Publication number Publication date
CA2281065C (en) 2008-08-12
US6419476B1 (en) 2002-07-16
US6852264B2 (en) 2005-02-08
US20020140131A1 (en) 2002-10-03

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