JPS6447522A - Sandwich injection molding apparatus - Google Patents
Sandwich injection molding apparatusInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-08-18 JP JP20432687A patent/JPS6447522A/en active Pending
Patent Citations (1)
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)
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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