JPS57160624A - Removing method of rubber flash - Google Patents
Removing method of rubber flashInfo
- Publication number
- JPS57160624A JPS57160624A JP4695181A JP4695181A JPS57160624A JP S57160624 A JPS57160624 A JP S57160624A JP 4695181 A JP4695181 A JP 4695181A JP 4695181 A JP4695181 A JP 4695181A JP S57160624 A JPS57160624 A JP S57160624A
- Authority
- JP
- Japan
- Prior art keywords
- flash
- rubber
- product
- vulcanization
- circle
- 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 enable to obtain a product without a flash, by constituting a molding part of a product and a part except that so as to enable relative motion in a vertical direction to a parting face at upper and lower, multi-cavity rubber molds.
CONSTITUTION: Unvulcanized rubber is filled to a vacant place 4 where a product is molded, an upper mold 1 and a lower mold 2 are fitted at a parting face 3, put in a vulcanization molding press and pressed and heated between platens 8, 9. In this time unvulcanized rubber is filled in the vacant place 4 and also a part is forced out to the parting face 3, becoming a flash. After vulcanization, molds 1, 2 and platens 8, 9 are taken out from the press and the platen 9 is removed, then the press plate 11 having a protruding part 10 which presses only a circle 5 constituting the vacant place 4 is put on. When the press plate 11 is pressed, the lowest edge 12 of the circle 5 contacts the uppermost edge of the corresponding circle of the lower mold 2, shearing the rubber flash, and the flash is separated mechanically. Besides, this shearing may be done before perfection of vulcanization.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4695181A JPS57160624A (en) | 1981-03-30 | 1981-03-30 | Removing method of rubber flash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4695181A JPS57160624A (en) | 1981-03-30 | 1981-03-30 | Removing method of rubber flash |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57160624A true JPS57160624A (en) | 1982-10-04 |
Family
ID=12761593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4695181A Pending JPS57160624A (en) | 1981-03-30 | 1981-03-30 | Removing method of rubber flash |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57160624A (en) |
-
1981
- 1981-03-30 JP JP4695181A patent/JPS57160624A/en active Pending
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