JPS57170734A - Method and apparatus for molding rim urethane in center injection system - Google Patents
Method and apparatus for molding rim urethane in center injection systemInfo
- Publication number
- JPS57170734A JPS57170734A JP5556481A JP5556481A JPS57170734A JP S57170734 A JPS57170734 A JP S57170734A JP 5556481 A JP5556481 A JP 5556481A JP 5556481 A JP5556481 A JP 5556481A JP S57170734 A JPS57170734 A JP S57170734A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- mixer
- molding
- cavity
- plunger
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/005—Compensating volume or shape change during moulding, in general
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0061—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the material feeding channel
- B29C33/0072—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the material feeding channel with a configuration promoting turbulency, e.g. for after-mixing in the mould
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To obtain a molding with high dimensional and superficial precision by a method wherein an after-mixer mold consisting of an upper and a lower molds is provided on the upper surface of an upper mold and raw liquid is supplied from the middle into a mold cavity through a mixer head and the after-mixer. CONSTITUTION:The plunger 11 of a mold controlling mechanism 10 is set at the 1st position according to the display of a sensor 13 and the primary liquid is supplied from the upper part in the middle of the mold cavity 8 through the mixer head 3 formed on the upper mold 4 of the aftermixer, the after-mixer 20 formed on the lower mold 5 of the after-mixer and an injecting gate 7. Subsequently, the plunger 11 is set at the 2nd position, an air vent 12 equipped on the upper mold 4 and the cavity 8 are connected through the gate 7 and gas generated in the cavity 8 is exhausted from an air vent 30. After then, the plunger 11 is set at the 3rd position, the molding is filled with packing and part of the molding is restrained from leaking from the cavity 8 into the gate 7 and after a preset mold releasing time the molds are opened to take out the molding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5556481A JPS57170734A (en) | 1981-04-15 | 1981-04-15 | Method and apparatus for molding rim urethane in center injection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5556481A JPS57170734A (en) | 1981-04-15 | 1981-04-15 | Method and apparatus for molding rim urethane in center injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57170734A true JPS57170734A (en) | 1982-10-21 |
Family
ID=13002194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5556481A Pending JPS57170734A (en) | 1981-04-15 | 1981-04-15 | Method and apparatus for molding rim urethane in center injection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57170734A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60157819A (en) * | 1983-12-12 | 1985-08-19 | シエラ− グロウブ コ−ポレ−シヨン | Method of coupling urethane material with glass member and method of molding urethane window gasket member and couplingsaid gasket member with window panel peripheral section |
JPS61213112A (en) * | 1985-03-19 | 1986-09-22 | Nippon Plast Co Ltd | Reaction injection molding method |
JP2007075295A (en) * | 2005-09-13 | 2007-03-29 | Pharos:Kk | Acupuncture implement |
WO2007045357A1 (en) * | 2005-10-18 | 2007-04-26 | Bayer Materialscience Ag | Mould for the production of plastic mouldings by the reaction injection-moulding process |
-
1981
- 1981-04-15 JP JP5556481A patent/JPS57170734A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60157819A (en) * | 1983-12-12 | 1985-08-19 | シエラ− グロウブ コ−ポレ−シヨン | Method of coupling urethane material with glass member and method of molding urethane window gasket member and couplingsaid gasket member with window panel peripheral section |
JPS61213112A (en) * | 1985-03-19 | 1986-09-22 | Nippon Plast Co Ltd | Reaction injection molding method |
JP2007075295A (en) * | 2005-09-13 | 2007-03-29 | Pharos:Kk | Acupuncture implement |
WO2007045357A1 (en) * | 2005-10-18 | 2007-04-26 | Bayer Materialscience Ag | Mould for the production of plastic mouldings by the reaction injection-moulding process |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2077445A1 (en) | Method and apparatus for injection molding plastic articles with gas assistance | |
JPS57117938A (en) | Two-color molding method | |
AU584405B2 (en) | Method of and apparatus for manufacturing foundry molds | |
JPS57170734A (en) | Method and apparatus for molding rim urethane in center injection system | |
JPS55146718A (en) | Intermediate blank made of synthetic resin for molding biaxially spread bottle | |
ES430355A1 (en) | Method of and apparatus for the production of mold parts for foundries | |
EP0399174A3 (en) | Method and apparatus for injection molding | |
ATE121001T1 (en) | DEVICE FOR SHAPING A LIQUID, CURED MATERIAL. | |
JPS5517569A (en) | Method and structure for prevention of drooling in injection molding die | |
JPS57178734A (en) | Automatically changing and supplying method for coloring material in injection molding | |
GB1328872A (en) | Method of forming a thermoplastic article | |
JPS56121745A (en) | Foaming resin injection molding method | |
JPS5573443A (en) | Gas venting method of casting mold and gas vent member | |
Ohtsuka et al. | Computer simulation system of molten metal flow in die casting | |
CA2208200A1 (en) | Injection molding apparatus and method | |
JPS576732A (en) | Method of molding synthetic resin formed component | |
JPS6411813A (en) | Method and apparatus for reaction injection molding | |
JPS57105323A (en) | Method for molding synthetic resin | |
JPS5769027A (en) | Method of controlling removing time from mold in rim molding and apparatus therefor | |
JPS57201633A (en) | Foamed molding method | |
JPS56133068A (en) | Apparatus for automatically building up adhesive on glass | |
JPS5574848A (en) | Method of providing hole in synthetic resin mold product | |
JPS56159137A (en) | Molding method for panel material molded with 2-layer resin | |
JPS5619962A (en) | Filling method of molten metal in vertical die casting machine | |
JPS57103777A (en) | Production of molding of solution quenched material |