JPS5712621A - Method and apparatus for heating plunger - Google Patents
Method and apparatus for heating plungerInfo
- Publication number
- JPS5712621A JPS5712621A JP8661180A JP8661180A JPS5712621A JP S5712621 A JPS5712621 A JP S5712621A JP 8661180 A JP8661180 A JP 8661180A JP 8661180 A JP8661180 A JP 8661180A JP S5712621 A JPS5712621 A JP S5712621A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- heat
- heated
- air
- 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
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To utilize thermal energy effectively and heat-set a resin at a plunger part completely, by a method wherein the air heated by utilizing the heat used for heating a mold is blasted to a plunger to heat the latter. CONSTITUTION:Air introduced from a supply source 56 is sufficiently heated by a heating plate 48, then the thus heated air is blasted toward the plunger 30 through an air blasting port 62 fitted to the tip of an annular air blasting member 60, to heat the plunger 30 at a top dead center. The air introduced from the supply source 56 is sufficiently heated while flowing through the heating plate 48 in contact with a spacer block 720, by the heat which is transmitted from a heater 16 for a mold to the spacer block 20 through a mold plate 18. Accordingly, the plunger can be heated without using a separate energy source, and a thermosetting resin contacted to the plunger part can be completely hardened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8661180A JPS5712621A (en) | 1980-06-27 | 1980-06-27 | Method and apparatus for heating plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8661180A JPS5712621A (en) | 1980-06-27 | 1980-06-27 | Method and apparatus for heating plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5712621A true JPS5712621A (en) | 1982-01-22 |
Family
ID=13891806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8661180A Pending JPS5712621A (en) | 1980-06-27 | 1980-06-27 | Method and apparatus for heating plunger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5712621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62148220A (en) * | 1985-12-23 | 1987-07-02 | Matsushita Electric Ind Co Ltd | Plunger for transfer molding machine |
| US5087239A (en) * | 1982-12-23 | 1992-02-11 | Tampax Limited | Tampon applicator |
-
1980
- 1980-06-27 JP JP8661180A patent/JPS5712621A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087239A (en) * | 1982-12-23 | 1992-02-11 | Tampax Limited | Tampon applicator |
| JPS62148220A (en) * | 1985-12-23 | 1987-07-02 | Matsushita Electric Ind Co Ltd | Plunger for transfer molding machine |
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