JPS5795408A - Differential forming method for synthetic resin article - Google Patents
Differential forming method for synthetic resin articleInfo
- Publication number
- JPS5795408A JPS5795408A JP17168980A JP17168980A JPS5795408A JP S5795408 A JPS5795408 A JP S5795408A JP 17168980 A JP17168980 A JP 17168980A JP 17168980 A JP17168980 A JP 17168980A JP S5795408 A JPS5795408 A JP S5795408A
- Authority
- JP
- Japan
- Prior art keywords
- forming die
- plug
- edge
- product
- sheet
- 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
Abstract
PURPOSE: To obtain a product free from burrs, when a synthetic resin article having a squeezed mouthpiece and an expanded body part is produced, by using a receiving edge free of a seam assembled in a forming die, and constructing the forming die in a manner such that the product as received in the forming die can be pulled out from the receiving edge.
CONSTITUTION: A synthetic resin sheet A preheated to a proper temperature is fixed with clamping frames 3, 3' at its periphery and arranged horizontally. Thereafter, a plug 1 is lowered so that the sheet A is inserted through a receiving edge ring 4 into a forming die 6. Just before an edge 2 comes in contact with an edge part 5, the plug 1 is stopped. In this state, a space between the plug 1 and the sheet A is air-sealed. Compressed air is fed into the space through a compressed air hose 1', while air is sucked through vacuum holes 7, so that the sheet A is brought into close contact with the inside surface of the forming die 6 to make a product A1. After the sheet A is formed, the plug 1 is further lowered to telescope the trimming edge 2 onto the edge part 5. Thereafter, the plug 1 is raised to open the clamping frames 3, 3', while the forming die 6 and the product A1 are lowered to separate them from the receiving edge. After the forming die 6 is opened, the product A1 is taken out from the forming die 6.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17168980A JPS5795408A (en) | 1980-12-05 | 1980-12-05 | Differential forming method for synthetic resin article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17168980A JPS5795408A (en) | 1980-12-05 | 1980-12-05 | Differential forming method for synthetic resin article |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5795408A true JPS5795408A (en) | 1982-06-14 |
Family
ID=15927861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17168980A Pending JPS5795408A (en) | 1980-12-05 | 1980-12-05 | Differential forming method for synthetic resin article |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795408A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844182A (en) * | 1971-01-18 | 1973-06-25 | ||
JPS5138331A (en) * | 1974-09-30 | 1976-03-31 | Kogyo Gijutsuin | Gansuigeruno seizohoho |
JPS5138345A (en) * | 1974-09-30 | 1976-03-31 | Mitsubishi Plastics Ind | GOSEIJUSHISEIKEIHINNO SEIKEIHOHOOYOBI SOCHI |
JPS5342786A (en) * | 1976-09-29 | 1978-04-18 | Sumitomo Heavy Industries | Force detector |
-
1980
- 1980-12-05 JP JP17168980A patent/JPS5795408A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844182A (en) * | 1971-01-18 | 1973-06-25 | ||
JPS5138331A (en) * | 1974-09-30 | 1976-03-31 | Kogyo Gijutsuin | Gansuigeruno seizohoho |
JPS5138345A (en) * | 1974-09-30 | 1976-03-31 | Mitsubishi Plastics Ind | GOSEIJUSHISEIKEIHINNO SEIKEIHOHOOYOBI SOCHI |
JPS5342786A (en) * | 1976-09-29 | 1978-04-18 | Sumitomo Heavy Industries | Force detector |
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