JPS6431941A - Molding method for cylindrical fibrous preformed body for reinforcing - Google Patents
Molding method for cylindrical fibrous preformed body for reinforcingInfo
- Publication number
- JPS6431941A JPS6431941A JP18954087A JP18954087A JPS6431941A JP S6431941 A JPS6431941 A JP S6431941A JP 18954087 A JP18954087 A JP 18954087A JP 18954087 A JP18954087 A JP 18954087A JP S6431941 A JPS6431941 A JP S6431941A
- Authority
- JP
- Japan
- Prior art keywords
- preformed body
- rubber cylinder
- mold
- fibrous
- wrinkles
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000000465 moulding Methods 0.000 title 1
- 230000003014 reinforcing effect Effects 0.000 title 1
- 239000000463 material Substances 0.000 abstract 4
- 230000037303 wrinkles Effects 0.000 abstract 3
- 238000003825 pressing Methods 0.000 abstract 2
- 239000002657 fibrous material Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Paper (AREA)
Abstract
PURPOSE:To obtain a sound preformed body having no generation of wrinkles by applying pressure to fibrous material via a rubber cylinder while shrinking of the rubber expanded into the large diameter, and pressing and forming material to the preformed body in a mold. CONSTITUTION:The rubber cylinder 13 is formed into the small diameter from the mold 2 in the free state. A vacuum pump 17 is operated to decompress the inside of a barometric pressure chamber C and the rubber cylinder 13 is absorbed toward the outside, is stuck on the inner circumferential surface of a cylindrical body 10 and is expanded into the large diameter. The mold 2 with the material 6 of the preformed body is set in the rubber cylinder 13 and is inserted between a cover plate 12 and a bottom plate 11. The barometric pressure chamber C is opened to the air and a pressurizing pump 16 is then operated to introduce the pressurized gas therein. By this method, while the diameter of the rubber cylinder 13 is shrunk, the applied pressure is worked on the material 6 of the preformed body. Said material 6 of the preformed body is pressed into the mold 2 to obtain a fibrous preformed body 1 and the fibrous/air ratio thereof is simultaneously decided. Wrinkles are not generated in the rubber cylinder 13 and the sound fibrous preformed body 1 having no wrinkles can be obtd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18954087A JPS6431941A (en) | 1987-07-29 | 1987-07-29 | Molding method for cylindrical fibrous preformed body for reinforcing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18954087A JPS6431941A (en) | 1987-07-29 | 1987-07-29 | Molding method for cylindrical fibrous preformed body for reinforcing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6431941A true JPS6431941A (en) | 1989-02-02 |
| JPH0428769B2 JPH0428769B2 (en) | 1992-05-15 |
Family
ID=16243018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18954087A Granted JPS6431941A (en) | 1987-07-29 | 1987-07-29 | Molding method for cylindrical fibrous preformed body for reinforcing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6431941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268849A (en) * | 2011-07-15 | 2011-12-07 | 佛山市绿源纤维模塑科技有限公司 | Device and method for producing pulp molding products of cylinders |
-
1987
- 1987-07-29 JP JP18954087A patent/JPS6431941A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268849A (en) * | 2011-07-15 | 2011-12-07 | 佛山市绿源纤维模塑科技有限公司 | Device and method for producing pulp molding products of cylinders |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0428769B2 (en) | 1992-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |