SE0403166L - Method for injection molding of products in thermoplastic with stepwise opening of different parts of the molding room, and tools for the method's implementation - Google Patents

Method for injection molding of products in thermoplastic with stepwise opening of different parts of the molding room, and tools for the method's implementation

Info

Publication number
SE0403166L
SE0403166L SE0403166A SE0403166A SE0403166L SE 0403166 L SE0403166 L SE 0403166L SE 0403166 A SE0403166 A SE 0403166A SE 0403166 A SE0403166 A SE 0403166A SE 0403166 L SE0403166 L SE 0403166L
Authority
SE
Sweden
Prior art keywords
mold cavity
cavity
melt
mold
cores
Prior art date
Application number
SE0403166A
Other languages
Swedish (sv)
Other versions
SE0403166D0 (en
SE528458C2 (en
Inventor
Lennart Karlsson
Original Assignee
Flexiject Invent Gmbh
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 Flexiject Invent Gmbh filed Critical Flexiject Invent Gmbh
Priority to SE0403166A priority Critical patent/SE528458C2/en
Publication of SE0403166D0 publication Critical patent/SE0403166D0/en
Publication of SE0403166L publication Critical patent/SE0403166L/en
Publication of SE528458C2 publication Critical patent/SE528458C2/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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/164—The moulding materials being injected simultaneously
    • 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
    • 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
    • B29C45/57—Exerting after-pressure on the moulding material
    • B29C45/572—Exerting after-pressure on the moulding material using movable mould wall or runner parts

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

Individually adjustable cores (19) inside the mold cavity (16) are used to vary the melt flow resistance in different parts of the cavity so that the melt reaches all areas of the cavity at the same time. An injection-molding method for producing an article comprising an upper part and at least integral connecting part such as a reinforcing part or fastener uses a mold cavity for the upper part which has different length flow channels extending in different directions from a melt inlet. Adjustable cores inside the mold cavity and be set individually in order to provide different flow resistances in the different areas of the mold cavity so that the melt reaches all areas of this cavity at essentially the same time. An independent claim is also included for the mold tool for carrying out this method, comprising a combination of fixed tool half-section (13) and a movable tool half-section (14) including form press cores which can be moved inside a mold cavity for the upper part which is connected to a melt inlet tube (15). Mold cavities (17) for forming the connecting parts are provided inside connection cores (20, 30) and are connected to the mold cavity for the upper part via openings or flow channels (18) containing flow control members.
SE0403166A 2004-12-22 2004-12-22 Coinjection molding method, uses mold cavity containing adjustable cores for altering melt flow resistance SE528458C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0403166A SE528458C2 (en) 2004-12-22 2004-12-22 Coinjection molding method, uses mold cavity containing adjustable cores for altering melt flow resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0403166A SE528458C2 (en) 2004-12-22 2004-12-22 Coinjection molding method, uses mold cavity containing adjustable cores for altering melt flow resistance

Publications (3)

Publication Number Publication Date
SE0403166D0 SE0403166D0 (en) 2004-12-22
SE0403166L true SE0403166L (en) 2006-06-23
SE528458C2 SE528458C2 (en) 2006-11-14

Family

ID=34102114

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0403166A SE528458C2 (en) 2004-12-22 2004-12-22 Coinjection molding method, uses mold cavity containing adjustable cores for altering melt flow resistance

Country Status (1)

Country Link
SE (1) SE528458C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007149021A1 (en) * 2006-06-21 2007-12-27 Flexiject Co-Injection Ab Method for injection moulding of products in thermoplast with stepwise opening of different parts of the mould cavity, and tool for practizing the method

Also Published As

Publication number Publication date
SE0403166D0 (en) 2004-12-22
SE528458C2 (en) 2006-11-14

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Legal Events

Date Code Title Description
NUG Patent has lapsed