JPH0471218U - - Google Patents
Info
- Publication number
- JPH0471218U JPH0471218U JP11379590U JP11379590U JPH0471218U JP H0471218 U JPH0471218 U JP H0471218U JP 11379590 U JP11379590 U JP 11379590U JP 11379590 U JP11379590 U JP 11379590U JP H0471218 U JPH0471218 U JP H0471218U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- resin
- pressure gas
- nozzle
- molten resin
- 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 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案の第１実施例に係る高圧ガス注
入ノズルの側断面図、第２図は第１図のノズル先
端部拡大断面図、第３図は本考案の第２実施例を
示す高圧ガス注入ノズルの先端部の拡大断面図、
第４図は本考案の第１実施例におけるノズル先端
部の断面とこれに対応する通路断面変化と圧力変
化の概念を示す説明図、第５図は従来の高圧ガス
注入ノズル先端部の拡大断面図、第６図は従来の
ノズル先端部の断面とこれに対応する通路断面変
化と圧力変化の概念を示す説明図である。
図の主要部分の説明、１……射出成形装置、２
……高圧ガス注入ノズル、３……ノズルボデイ、
４……ノズルチツプ、５……プランジヤー、６…
…レバー、９……ガス通路、１０……溶融樹脂通
路、１１……注入口、１４……ノズルピース、Ｐ
１……注入口１１の溶融樹脂圧力、Ｐ２……通路
１０の溶融樹脂圧力、ＰＧ……ガスの圧力。
FIG. 1 is a side sectional view of a high-pressure gas injection nozzle according to the first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the nozzle tip of FIG. 1, and FIG. 3 is a second embodiment of the present invention. Enlarged cross-sectional view of the tip of the high-pressure gas injection nozzle,
Fig. 4 is an explanatory diagram showing the cross section of the nozzle tip in the first embodiment of the present invention and the concept of the corresponding passage cross-sectional change and pressure change, and Fig. 5 is an enlarged cross-section of the conventional high-pressure gas injection nozzle tip. 6 are explanatory diagrams showing the concept of a cross section of a conventional nozzle tip, a corresponding passage cross-sectional change, and a pressure change. Explanation of the main parts of the figure, 1... Injection molding device, 2
...High pressure gas injection nozzle, 3...Nozzle body,
4...Nozzle tip, 5...Plunger, 6...
... Lever, 9 ... Gas passage, 10 ... Molten resin passage, 11 ... Inlet, 14 ... Nozzle piece, P
1 ... Molten resin pressure in the injection port 11, P 2 ... Molten resin pressure in the passage 10, PG... Gas pressure.
Claims (1)
ル部内に設けられ、射出工程中溶融樹脂に高圧ガ
スを注入するノズルを有する射出成形機の高圧ガ
ス注入用ノズルにおいて、高圧ガス注入口の樹脂
通路とその上流の樹脂通路との間に、同注入口の
樹脂通路より小さく、かつ上流の樹脂通路よりも
小さい断面積を有する樹脂通路を配設し、高圧ガ
ス注入時に流動する溶融樹脂の上流の圧力値がガ
ス注入口の溶融樹脂の圧力値より大なるようにし
たことを特徴とする射出成形機の高圧ガス注入用
ノズル。 In a high-pressure gas injection nozzle of an injection molding machine, which has a nozzle part that injects molten resin into a mold, and a nozzle that is installed in the same nozzle part and injects high-pressure gas into the molten resin during the injection process, the resin at the high-pressure gas injection port is A resin passage that is smaller than the resin passage of the same injection port and has a cross-sectional area smaller than that of the upstream resin passage is provided between the passage and the resin passage upstream of the passage, so that the upstream of the molten resin flowing when high-pressure gas is injected is provided. 1. A high-pressure gas injection nozzle for an injection molding machine, characterized in that the pressure value of is greater than the pressure value of molten resin at the gas injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11379590U JPH0751298Y2 (en) | 1990-10-30 | 1990-10-30 | Nozzle for high pressure gas injection of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11379590U JPH0751298Y2 (en) | 1990-10-30 | 1990-10-30 | Nozzle for high pressure gas injection of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0471218U true JPH0471218U (en) | 1992-06-24 |
| JPH0751298Y2 JPH0751298Y2 (en) | 1995-11-22 |
Family
ID=31861411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11379590U Expired - Fee Related JPH0751298Y2 (en) | 1990-10-30 | 1990-10-30 | Nozzle for high pressure gas injection of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751298Y2 (en) |
-
1990
- 1990-10-30 JP JP11379590U patent/JPH0751298Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751298Y2 (en) | 1995-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |