JPS55118839A - Foam molding die - Google Patents
Foam molding dieInfo
- Publication number
- JPS55118839A JPS55118839A JP2512479A JP2512479A JPS55118839A JP S55118839 A JPS55118839 A JP S55118839A JP 2512479 A JP2512479 A JP 2512479A JP 2512479 A JP2512479 A JP 2512479A JP S55118839 A JPS55118839 A JP S55118839A
- Authority
- JP
- Japan
- Prior art keywords
- die
- vent
- hole
- foam
- molding
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
-
- 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
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
PURPOSE:To facilitate to remove the fins produced for the vent by a method wherein the upper die or the lower die of the foam molding die is splitted into a plural units in a thickness direction, a vent being provided for the desired location of the die having the cavities, a hole being provided for the parting plane of the split die located opposing to the outlet thereof. CONSTITUTION:A vent hole 9 is provided for the middle die 2 of the foam molding die comprising the lower die 1, the middle die 2, and the upper die 3, where a hole 11 is provided for the upper die 3 located in opposing to the outlet of the vent 9 to retain the resin leaked from the vent hole. This allows the foamed resin filled in the cavity 10' to foam fluidly in an arrow direction by action of foaming agent, where the gas developed from the cavity 10' is compressed by the foam to discharge into the hole 11 from the gas vent hole 9, allowing the resin together with gas to produce and solidify the foaming material 12 within the hole 11. After solidifying the molding 10, the molding 10 and the foaming material 12 are cut at 9' position by opening the die. This enables to prevent the resin from getting blocked in the vent 9 since the length of the vent hole 9 is short.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2512479A JPS55118839A (en) | 1979-03-06 | 1979-03-06 | Foam molding die |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2512479A JPS55118839A (en) | 1979-03-06 | 1979-03-06 | Foam molding die |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55118839A true JPS55118839A (en) | 1980-09-12 |
Family
ID=12157186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2512479A Pending JPS55118839A (en) | 1979-03-06 | 1979-03-06 | Foam molding die |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55118839A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007038414A (en) * | 2005-07-29 | 2007-02-15 | Daikyoo Nishikawa Kk | Resin molded product, its manufacturing method and door for automobile |
KR101090606B1 (en) | 2009-12-08 | 2011-12-08 | 오리엔트 세미컨덕터 일렉트로닉스 리미티드 | Molding apparatus and molding method using the same |
-
1979
- 1979-03-06 JP JP2512479A patent/JPS55118839A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007038414A (en) * | 2005-07-29 | 2007-02-15 | Daikyoo Nishikawa Kk | Resin molded product, its manufacturing method and door for automobile |
JP4671797B2 (en) * | 2005-07-29 | 2011-04-20 | ダイキョーニシカワ株式会社 | RESIN MOLDED BODY, ITS MANUFACTURING METHOD AND AUTOMOBILE DOOR |
KR101090606B1 (en) | 2009-12-08 | 2011-12-08 | 오리엔트 세미컨덕터 일렉트로닉스 리미티드 | Molding apparatus and molding method using the same |
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