JPS6447522A - Sandwich injection molding apparatus - Google Patents

Sandwich injection molding apparatus

Info

Publication number
JPS6447522A
JPS6447522A JP20432687A JP20432687A JPS6447522A JP S6447522 A JPS6447522 A JP S6447522A JP 20432687 A JP20432687 A JP 20432687A JP 20432687 A JP20432687 A JP 20432687A JP S6447522 A JPS6447522 A JP S6447522A
Authority
JP
Japan
Prior art keywords
nozzle
resin
valve member
path
skin material
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.)
Pending
Application number
JP20432687A
Other languages
Japanese (ja)
Inventor
Ryozo Morita
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.)
Meiki Seisakusho KK
Original Assignee
Meiki Seisakusho KK
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 Meiki Seisakusho KK filed Critical Meiki Seisakusho KK
Priority to JP20432687A priority Critical patent/JPS6447522A/en
Publication of JPS6447522A publication Critical patent/JPS6447522A/en
Pending 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To simplify a constitution and to prevent occurrence of a switching mark, by forming the second resin path between an inner face of the first nozzle and an outer face of the second nozzle and making the second resin path freely closable by bringing the second nozzle into contact with the first nozzle. CONSTITUTION:In the neutral state where no injection is carried out, the second nozzle 9 is brought into contact with an inner face of the first nozzle 4 and a valve member 10 closes an injection hole 9a of the second nozzle 9. To inject a skin material under this condition, it is enough to inject a molten resin in the first heating cylinder 1 by forwarding a screw 2 of the first heating cylinder 1. The said resin passes through a passing hole 7 of a cylinder head 3 and a material path 6 and flows into the second resin path 8 and gives a pressure on the second nozzle 9 in the direction separating from the first nozzle 4. On the other hand, the second nozzle 9 is pressed on the first nozzle 4 by means of the valve member 10. Therefore, when the resin pressure of the skin material exceeds the pushing pressure of the valve member 10, the second nozzle 9 is separated from the first nozzle 4 and the skin material is injected from an injecting hole of the first nozzle 4 into a mold.
JP20432687A 1987-08-18 1987-08-18 Sandwich injection molding apparatus Pending JPS6447522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20432687A JPS6447522A (en) 1987-08-18 1987-08-18 Sandwich injection molding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20432687A JPS6447522A (en) 1987-08-18 1987-08-18 Sandwich injection molding apparatus

Publications (1)

Publication Number Publication Date
JPS6447522A true JPS6447522A (en) 1989-02-22

Family

ID=16488638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20432687A Pending JPS6447522A (en) 1987-08-18 1987-08-18 Sandwich injection molding apparatus

Country Status (1)

Country Link
JP (1) JPS6447522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4229254A1 (en) * 1992-09-02 1994-03-03 Teves Gmbh Alfred Injection unit for two component injection machine - comprises horizontal and inclined cylinders with nozzle spacing ensuring independent temp. control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61274912A (en) * 1985-05-31 1986-12-05 Nissei Ee S B Kikai Kk Nozzle apparatus for multilayer molding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61274912A (en) * 1985-05-31 1986-12-05 Nissei Ee S B Kikai Kk Nozzle apparatus for multilayer molding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4229254A1 (en) * 1992-09-02 1994-03-03 Teves Gmbh Alfred Injection unit for two component injection machine - comprises horizontal and inclined cylinders with nozzle spacing ensuring independent temp. control
DE4229254C2 (en) * 1992-09-02 1999-04-01 Teves Gmbh Alfred Injection unit for a two-component injection molding machine

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