TW200706342A - Injection molding method and injection mold of hollow molded product - Google Patents

Injection molding method and injection mold of hollow molded product

Info

Publication number
TW200706342A
TW200706342A TW095110956A TW95110956A TW200706342A TW 200706342 A TW200706342 A TW 200706342A TW 095110956 A TW095110956 A TW 095110956A TW 95110956 A TW95110956 A TW 95110956A TW 200706342 A TW200706342 A TW 200706342A
Authority
TW
Taiwan
Prior art keywords
molded product
hollow molded
molding
molding method
good
Prior art date
Application number
TW095110956A
Other languages
Chinese (zh)
Inventor
Yasushi Noda
Kentaro Takesada
Original Assignee
Kaneka Corp
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 JP2005096082A external-priority patent/JP4572717B2/en
Priority claimed from JP2005132203A external-priority patent/JP2006308002A/en
Priority claimed from JP2005191596A external-priority patent/JP2007010043A/en
Application filed by Kaneka Corp filed Critical Kaneka Corp
Publication of TW200706342A publication Critical patent/TW200706342A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • 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
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure
    • B29C45/435—Removing or ejecting moulded articles using fluid under pressure introduced between a mould core and a hollow resilient undercut article, e.g. bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/703—Bellows

Abstract

To provide a molding method for a cylindrical hollow molded product with a bellows portion such as a boot for a constant velocity joint, which allows manufacturing the hollow molded product by which the flow nonuniformity of a resin in molding does not occur, good appearance can be obtained, deformation in demolding by high pressure air is reduced, dimensional accuracy and dimensional stability is good, and which can be recycled by injection molding in good productivity. A molten thermoplastic resin is injected from one point of a top portion of a dome-shaped 40 arranged so as to project from one opening end of the hollow molded product molded in a molding space 30 to the out side in an axial direction of the molded product to fill the molding space with the molten thermoplastic resin, thereby the hollow molded product whose one end is closed is molded, a cavity mold 10 is opened, and the molded product is taken out by blowing the high pressure air to the inner face of the part which becomes the lid formed in the dome-shaped gate 40 portion of the hollow molded product outwardly fitted on the core mold 20 from the core mold 20 after molding.
TW095110956A 2005-03-29 2006-03-29 Injection molding method and injection mold of hollow molded product TW200706342A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005096082A JP4572717B2 (en) 2005-03-29 2005-03-29 Hollow molding injection molding method and injection mold
JP2005132203A JP2006308002A (en) 2005-04-28 2005-04-28 Resin boot
JP2005191596A JP2007010043A (en) 2005-06-30 2005-06-30 Resin boot

Publications (1)

Publication Number Publication Date
TW200706342A true TW200706342A (en) 2007-02-16

Family

ID=37053340

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095110956A TW200706342A (en) 2005-03-29 2006-03-29 Injection molding method and injection mold of hollow molded product

Country Status (2)

Country Link
TW (1) TW200706342A (en)
WO (1) WO2006104083A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5942815B2 (en) * 2012-11-26 2016-06-29 株式会社ジェイテクト Molds for constant velocity joint boots
WO2017116323A1 (en) * 2015-12-29 2017-07-06 Mir Arastirma Ve Gelistirme A.S. Molding core, mold and fluid-aided molding method
CN117222830A (en) * 2021-04-23 2023-12-12 大塚化学株式会社 Sealing member

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0492166A (en) * 1990-08-07 1992-03-25 Honda Motor Co Ltd Boot for universal joint and manufacture thereof
JP2548165Y2 (en) * 1992-02-29 1997-09-17 キーパー株式会社 Injection mold
JPH1073162A (en) * 1996-08-29 1998-03-17 Suzuki Motor Corp Boots and its molding/extracting method
JP4127906B2 (en) * 1997-09-30 2008-07-30 Ｎｔｎ株式会社 Constant velocity universal joint
JP2001116057A (en) * 1999-08-10 2001-04-27 Toyo Tire & Rubber Co Ltd Designing method for constant velocity universal joint boot and constant velocity universal joint boot
JP4451691B2 (en) * 2003-03-28 2010-04-14 株式会社カネカ Acrylic polymer composition

Also Published As

Publication number Publication date
WO2006104083A1 (en) 2006-10-05

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