JPS5544321A - Nozzle - Google Patents
NozzleInfo
- Publication number
- JPS5544321A JPS5544321A JP11699578A JP11699578A JPS5544321A JP S5544321 A JPS5544321 A JP S5544321A JP 11699578 A JP11699578 A JP 11699578A JP 11699578 A JP11699578 A JP 11699578A JP S5544321 A JPS5544321 A JP S5544321A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- nozzle
- glass fiber
- hydraulic pressure
- needle valve
- 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
- 239000011347 resin Substances 0.000 abstract 5
- 229920005989 resin Polymers 0.000 abstract 5
- 239000003365 glass fiber Substances 0.000 abstract 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
Landscapes
- Nozzles (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To prevent the entry of resins to piston and cylinder clearances and improve nozzle durability by providing an auxilary piston to a nozzle for molding of plastics and letting the resin containing glass fiber stagnate there.
CONSTITUTION: An auxiliary piston 2 is disposed in an auxiliary cylinder 3 in association to a needle valve 1. The lubricating oil 10 in a tank 8 becomes hydraulic pressure by way of compressed air 11 and when it reaches the respective clearance parts through the oil hole 12 of a main piston 4, the balance of the resin pressure around the needle valve 1 and the hydraulic pressure is maintained, then the glass fiber containing resin in the clearance between the auxiliary piston 2 and auxliary cylinder 3 assumes a stagnating state even if the piston 4 is reciprocating, thus it does not affect the periphery of the main piston 4. Namely, if the hydraulic pressure is suitably set, the entry of the glass fiber containing resin into the periphery of the main piston with the peripheral part of the mushroom valve 13 as a boundary is obviated and the needle valve nozzle of less abrasion is provided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11699578A JPS5544321A (en) | 1978-09-22 | 1978-09-22 | Nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11699578A JPS5544321A (en) | 1978-09-22 | 1978-09-22 | Nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5544321A true JPS5544321A (en) | 1980-03-28 |
| JPS5720891B2 JPS5720891B2 (en) | 1982-05-01 |
Family
ID=14700859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11699578A Granted JPS5544321A (en) | 1978-09-22 | 1978-09-22 | Nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5544321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0487408U (en) * | 1990-12-11 | 1992-07-29 |
-
1978
- 1978-09-22 JP JP11699578A patent/JPS5544321A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0487408U (en) * | 1990-12-11 | 1992-07-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5720891B2 (en) | 1982-05-01 |
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