JPS56159117A - Mold - Google Patents
MoldInfo
- Publication number
- JPS56159117A JPS56159117A JP6263480A JP6263480A JPS56159117A JP S56159117 A JPS56159117 A JP S56159117A JP 6263480 A JP6263480 A JP 6263480A JP 6263480 A JP6263480 A JP 6263480A JP S56159117 A JPS56159117 A JP S56159117A
- Authority
- JP
- Japan
- Prior art keywords
- block
- spring
- molded article
- cavity
- mold
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
PURPOSE: To provide a mold by which a molded article having no residual internal stress is obtained, by forming at least one of the boundary surfaces of a cavity defined by split molds from a surface of a resiliently supported block or heat-proof resilient body.
CONSTITUTION: Within a cavity of a mold 10 consisting of, for example, a plurality of split molds 11a, 11b, 11c is supported the block 14 such as a lenticular hook silidably and resiliently by a spring 15. When a thermoplastic resin 17 melted and fluidized by heat is injected forcibly into this cavity, the block 14 is pushed down against the spring 15 (Fig. A) by the force of the pressure. After the completion of the injection, when cooled, the plastic 17 is contracted by the action of the spring 15 through the block 14 (Fig. B), and then is solidified (Fig. C) to form a molded article such as a lens.
EFFECT: When the molded article is used even as a power transmitting member, it will not be broken, or when it is used as an optical part, there will be no distortion in the transmitted light.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6263480A JPS56159117A (en) | 1980-05-12 | 1980-05-12 | Mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6263480A JPS56159117A (en) | 1980-05-12 | 1980-05-12 | Mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56159117A true JPS56159117A (en) | 1981-12-08 |
Family
ID=13205944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6263480A Pending JPS56159117A (en) | 1980-05-12 | 1980-05-12 | Mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56159117A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004114628A (en) * | 2002-09-27 | 2004-04-15 | Ricoh Co Ltd | Molding method and injection molding die for plastic molded item |
| JP2011122984A (en) * | 2009-12-11 | 2011-06-23 | Hitachi Automotive Systems Ltd | Flow sensor, method of manufacturing the same, and flow sensor module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411165A (en) * | 1977-06-28 | 1979-01-27 | Matsushita Electric Works Ltd | Structure of mold |
| JPS5427028A (en) * | 1977-07-26 | 1979-03-01 | Kanebo Ltd | Alkali-resistant glass fibers for sheet formation |
-
1980
- 1980-05-12 JP JP6263480A patent/JPS56159117A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411165A (en) * | 1977-06-28 | 1979-01-27 | Matsushita Electric Works Ltd | Structure of mold |
| JPS5427028A (en) * | 1977-07-26 | 1979-03-01 | Kanebo Ltd | Alkali-resistant glass fibers for sheet formation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004114628A (en) * | 2002-09-27 | 2004-04-15 | Ricoh Co Ltd | Molding method and injection molding die for plastic molded item |
| JP2011122984A (en) * | 2009-12-11 | 2011-06-23 | Hitachi Automotive Systems Ltd | Flow sensor, method of manufacturing the same, and flow sensor module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB8601967D0 (en) | Manufacturing contact lenses | |
| GB1092749A (en) | A method of producing articles of thermosetting plastics material | |
| FI943496A0 (en) | Method and apparatus for making molds as well as molds made according to the method | |
| DE69528686D1 (en) | Low-oxygen process for the production of soft contact lenses | |
| HK1009642A1 (en) | Method of making plastic molds and process for cast molding contact lenses | |
| DE3260413D1 (en) | Stabilized core injection molding of plastic | |
| SE8008719L (en) | SET AND DEVICE FOR CASTING OF ARMED PLASTIC PRODUCTS | |
| EP0727677A4 (en) | Production method of light-reflecting component and light-reflecting component produced by the method | |
| GR3033053T3 (en) | Process and device for the production of optical lenses. | |
| WO1992006833A3 (en) | Method for forming disposable molds for producing optical quality lenses | |
| DE69310200D1 (en) | METHOD FOR PRODUCING A HYDROPHILIC CONTACT LENS | |
| EP0839636A3 (en) | Method of manufacturing optical-use plastic products | |
| DE59809138D1 (en) | Device for producing molded articles from a polymerizable mixture | |
| MY116961A (en) | Method for molding thermoplastic resin | |
| JPS56159117A (en) | Mold | |
| JPS5767906A (en) | Mold forming method for terminal part of optical fiber | |
| EP0955147A4 (en) | Method of injection molding plastic lens | |
| JPS56159134A (en) | Mold for injection molding | |
| JPS57203529A (en) | Injection molding with ideal mirror face and molds therefor | |
| DK0682593T3 (en) | Injection mold and method of injection molding an object | |
| JPS57205120A (en) | Molding of aspherical lens | |
| JPS56161133A (en) | Structure of burrless mold | |
| JPS6472929A (en) | Production of optical element | |
| JPS5699646A (en) | Protector for ejector pin of mold for injection molding | |
| JPS55117621A (en) | Separating method of glass mold from plastic formed product |