JPS55140539A - Multilayer injection forming - Google Patents

Multilayer injection forming

Info

Publication number
JPS55140539A
JPS55140539A JP5053979A JP5053979A JPS55140539A JP S55140539 A JPS55140539 A JP S55140539A JP 5053979 A JP5053979 A JP 5053979A JP 5053979 A JP5053979 A JP 5053979A JP S55140539 A JPS55140539 A JP S55140539A
Authority
JP
Japan
Prior art keywords
resin
cavity
gate
mold
skin
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
JP5053979A
Other languages
Japanese (ja)
Other versions
JPS6142617B2 (en
Inventor
Masataka Sakurada
Nobuyuki Iwazawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP5053979A priority Critical patent/JPS55140539A/en
Publication of JPS55140539A publication Critical patent/JPS55140539A/en
Publication of JPS6142617B2 publication Critical patent/JPS6142617B2/ja
Granted legal-status Critical Current

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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • 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
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • B29C2043/3621—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices a plurality of individual elements acting on the material in the same or diferent directions, e.g. making tubular T-joints, profiles
    • B29C2043/3623—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices a plurality of individual elements acting on the material in the same or diferent directions, e.g. making tubular T-joints, profiles coupled on a support, e.g. plate
    • 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
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other

Abstract

PURPOSE:To obtain a formed laminate with even layers of skin resin by using a particular mold whose cavity capacity is changeable and changing the cavity in the middle or just after the completion of the injection process of the melted resin. CONSTITUTION:By using a metal mold wherein a part 4 of the surface opposite to gate 3 can be moved independently from a movable mold (a male mold) 2 in the case when two or more kinds of resin is laminated and processed by injection forming, first the skin resin (the resin to form the surface layer of a formed matter) is injected and then, when the hardened layer of the skin resin is formed on the inner wall of a cavity near to the gate 3, while the resin not in touch with the cavity being still in a liquefied state, the resin for inside layer is injected. And just before or after the completion of the injection of all resin in the prescribed quantity a movable part 4 is started to move to apply sufficient pressure, thereby the thickness of layers around the gate being decreased.
JP5053979A 1979-04-23 1979-04-23 Multilayer injection forming Granted JPS55140539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5053979A JPS55140539A (en) 1979-04-23 1979-04-23 Multilayer injection forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5053979A JPS55140539A (en) 1979-04-23 1979-04-23 Multilayer injection forming

Publications (2)

Publication Number Publication Date
JPS55140539A true JPS55140539A (en) 1980-11-04
JPS6142617B2 JPS6142617B2 (en) 1986-09-22

Family

ID=12861805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5053979A Granted JPS55140539A (en) 1979-04-23 1979-04-23 Multilayer injection forming

Country Status (1)

Country Link
JP (1) JPS55140539A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6367132A (en) * 1986-09-08 1988-03-25 Toyota Motor Corp Method and apparatus for coloring in injection molding
JPH01202416A (en) * 1988-02-09 1989-08-15 Honda Motor Co Ltd Injection compression molding method for plastic product
EP1208955A1 (en) * 2000-11-28 2002-05-29 Intercable Srl Injection moulding with variable cavity for making corks
EP1541317A1 (en) * 2002-09-03 2005-06-15 Polyplastics Co Ltd Method of composite injection molding and mold
WO2015181062A1 (en) * 2014-05-28 2015-12-03 Albea Services Method for producing a receptacle, receptacle obtained according to said method and device for producing the receptacle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0142180Y2 (en) * 1986-06-13 1989-12-11

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6367132A (en) * 1986-09-08 1988-03-25 Toyota Motor Corp Method and apparatus for coloring in injection molding
JPH01202416A (en) * 1988-02-09 1989-08-15 Honda Motor Co Ltd Injection compression molding method for plastic product
EP1208955A1 (en) * 2000-11-28 2002-05-29 Intercable Srl Injection moulding with variable cavity for making corks
EP1541317A1 (en) * 2002-09-03 2005-06-15 Polyplastics Co Ltd Method of composite injection molding and mold
EP1541317A4 (en) * 2002-09-03 2007-02-28 Polyplastics Co Method of composite injection molding and mold
WO2015181062A1 (en) * 2014-05-28 2015-12-03 Albea Services Method for producing a receptacle, receptacle obtained according to said method and device for producing the receptacle
FR3021578A1 (en) * 2014-05-28 2015-12-04 Albea Services METHOD AND DEVICE FOR INJECTION MOLDING A RECEPTACLE, RECEPTACLE OBTAINED

Also Published As

Publication number Publication date
JPS6142617B2 (en) 1986-09-22

Similar Documents

Publication Publication Date Title
EP0053833A3 (en) A method of making injection moulded plastic objects with imbedded decorative and/or descriptive prints
CA2077445A1 (en) Method and apparatus for injection molding plastic articles with gas assistance
JPS565747A (en) Decoration-molding method and apparatus for synthetic resin uneven surface and mold product
ES8101948A1 (en) Casting methods with composite molded core assembly
JPS55140539A (en) Multilayer injection forming
DE3878672D1 (en) METHOD FOR COATING NON-STRIPED FILMS BY INJECTION MOLDING THERMOPLASTIC PLASTICS FOR PRODUCING COMPOSED PARTS.
SE8900368A (en)
JPS5486550A (en) Molding of multi-layered molded article
JPS5747632A (en) Production of patterned plastic molded article
JPS56118830A (en) Manufacture of foamed molding with opening
JPS57189832A (en) Injection-molding method for production of laminated formed article
JPS57150551A (en) Unevenly decorated patterned container and its manufacture
FR2436669A1 (en) Moulded coating plastics parts
EP0191623A3 (en) Process for producing sandwich mouldings
JPS5692038A (en) Multilayer injection molding
JPS55100139A (en) Manufacture of multilayered container
JPS5565531A (en) Molding of handle for toothbrush or the like and metallic mold therefor
GB869416A (en) Method of making decorative moulded articles from thermo-plastic materials
JPS56121745A (en) Foaming resin injection molding method
JPS55146724A (en) Double molding device using different kinds of materials
JPS5559942A (en) Method of decorating and molding surface of plastic article
JPS56106839A (en) Manufacture of transparent vessel
JPS6431625A (en) Solid forming method
JPS5791241A (en) Injection molding method of thick article
JPS5672431A (en) Manufacture of reflective type screen