WO2004012923A3 - A valve pin guide and alignment system for a hot-runner in an injection molding apparatus - Google Patents

A valve pin guide and alignment system for a hot-runner in an injection molding apparatus Download PDF

Info

Publication number
WO2004012923A3
WO2004012923A3 PCT/CA2003/001154 CA0301154W WO2004012923A3 WO 2004012923 A3 WO2004012923 A3 WO 2004012923A3 CA 0301154 W CA0301154 W CA 0301154W WO 2004012923 A3 WO2004012923 A3 WO 2004012923A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve pin
alignment
gate
runner
hot
Prior art date
Application number
PCT/CA2003/001154
Other languages
French (fr)
Other versions
WO2004012923A2 (en
Inventor
Jonathon Fischer
Denis Babin
Original Assignee
Mold Masters Ltd
Jonathon Fischer
Denis Babin
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 Mold Masters Ltd, Jonathon Fischer, Denis Babin filed Critical Mold Masters Ltd
Priority to JP2004525092A priority Critical patent/JP2005534534A/en
Priority to EP03766086A priority patent/EP1531977B1/en
Priority to DE60316444T priority patent/DE60316444T2/en
Priority to CA002492701A priority patent/CA2492701A1/en
Priority to AU2003254663A priority patent/AU2003254663A1/en
Publication of WO2004012923A2 publication Critical patent/WO2004012923A2/en
Publication of WO2004012923A3 publication Critical patent/WO2004012923A3/en

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
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • B29C45/2711—Gate inserts
    • 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
    • B29C45/278—Nozzle tips
    • 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
    • B29C45/28—Closure devices therefor
    • B29C45/2806—Closure devices therefor consisting of needle valve systems
    • 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
    • B29C45/2701—Details not specific to hot or cold runner channels

Abstract

In a manifold, the valve pin has a sealing surface proximate its bottom end, which surface is engageable with a gate sealing surface to inhibit melt flow into the cavity. A first guidance and alignment structure is connected to the valve pin, and a second structure to the mould block upstream from the gate. Both structures include first and second guide surfaces of a diameter decreasing gradually in a downstream direction and first and second cylindrical alignment surfaces. The first guide surface is positioned immediately downstream from the first alignment surface, the second guide surface immediately upstreams from the second alignment surface. The second guide surface is positioned to complete alignment of the valve pin with the gate prior to contact between valve pin and gate. Further, it is positioned to engage the first alignment surface to maintain the valve pin in alignment with the gate during its movement towards the gate.
PCT/CA2003/001154 2002-07-30 2003-07-30 A valve pin guide and alignment system for a hot-runner in an injection molding apparatus WO2004012923A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004525092A JP2005534534A (en) 2002-07-30 2003-07-30 Valve pin guide and centering system for injection molding equipment
EP03766086A EP1531977B1 (en) 2002-07-30 2003-07-30 A valve pin guide and alignment system for a hot-runner in an injection molding apparatus
DE60316444T DE60316444T2 (en) 2002-07-30 2003-07-30 VALVE NODE GUIDANCE AND ALIGNMENT SYSTEM FOR A HOT CHANNEL IN AN INJECTION MOLDING DEVICE
CA002492701A CA2492701A1 (en) 2002-07-30 2003-07-30 A valve pin guide and alignment system for a hot-runner in an injection molding apparatus
AU2003254663A AU2003254663A1 (en) 2002-07-30 2003-07-30 A valve pin guide and alignment system for a hot-runner in an injection molding apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39912102P 2002-07-30 2002-07-30
US60/399,121 2002-07-30

Publications (2)

Publication Number Publication Date
WO2004012923A2 WO2004012923A2 (en) 2004-02-12
WO2004012923A3 true WO2004012923A3 (en) 2004-05-21

Family

ID=31495736

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2003/001154 WO2004012923A2 (en) 2002-07-30 2003-07-30 A valve pin guide and alignment system for a hot-runner in an injection molding apparatus

Country Status (9)

Country Link
US (2) US7025586B2 (en)
EP (1) EP1531977B1 (en)
JP (1) JP2005534534A (en)
CN (1) CN100448646C (en)
AT (1) ATE373557T1 (en)
AU (1) AU2003254663A1 (en)
CA (1) CA2492701A1 (en)
DE (1) DE60316444T2 (en)
WO (1) WO2004012923A2 (en)

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IT201700076433A1 (en) * 2017-07-07 2019-01-07 INJECTION GROUP WITH SHUTTER PIN, FOR INJECTION MOLDING OF PLASTIC MATERIAL, WITH THE ABILITY TO RECOVER THERMAL EXPANSION AND TO AVOID PLASTIC MATERIAL LEAKAGE
JP7109215B2 (en) * 2018-03-09 2022-07-29 エスバンス株式会社 Molded product manufacturing method
EP3966014B1 (en) * 2019-05-10 2024-03-20 Mold-Masters (2007) Limited Side-gate injection molding apparatus and side-gate hot runner nozzle
CN111735862A (en) * 2020-06-16 2020-10-02 梅州康立高科技有限公司 Self-positioning electrode structure
CN111941737B (en) * 2020-09-18 2022-11-15 江苏常熟汽饰集团股份有限公司 Local reinforced injection molding method for injection molding product with glass fiber composite sheet embedded on surface
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US7025586B2 (en) 2006-04-11
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AU2003254663A8 (en) 2004-02-23
US20060182843A1 (en) 2006-08-17
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DE60316444T2 (en) 2008-01-10
US7223092B2 (en) 2007-05-29

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