JPS641513A - Molding of thick-wall product - Google Patents
Molding of thick-wall productInfo
- Publication number
- JPS641513A JPS641513A JP4842488A JP4842488A JPS641513A JP S641513 A JPS641513 A JP S641513A JP 4842488 A JP4842488 A JP 4842488A JP 4842488 A JP4842488 A JP 4842488A JP S641513 A JPS641513 A JP S641513A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- arrived
- stopped
- thick
- cavity
- 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
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To mold a thick-wall product, homogeneous and excellent in optical characteristics, by a method wherein the hydraulic pressure of an injection cylinder or the internal pressure of a cavity is detected and the rotation of a screw is stopped when the detecting value has arrived at a predetermined value.
CONSTITUTION: A screw is advanced from the limit of retreat to fill a cavity with metered material and the advancing operation of the screw is stopped when the screw has arrived at an arbitrary dwelling position, then, the screw is rotated to continue the filling of the material. The hydraulic pressure of an injection cylinder or the internal pressure of the cavity is detected, and the filling of the material is stopped to start dwelling process when the detecting value has arrived at a predetermined value.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63048424A JPH0818355B2 (en) | 1987-03-24 | 1988-03-01 | Thick product molding method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-69999 | 1987-03-24 | ||
JP6999987 | 1987-03-24 | ||
JP63048424A JPH0818355B2 (en) | 1987-03-24 | 1988-03-01 | Thick product molding method |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS641513A true JPS641513A (en) | 1989-01-05 |
JPH011513A JPH011513A (en) | 1989-01-05 |
JPH0818355B2 JPH0818355B2 (en) | 1996-02-28 |
Family
ID=26388695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63048424A Expired - Fee Related JPH0818355B2 (en) | 1987-03-24 | 1988-03-01 | Thick product molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0818355B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5157537A (en) * | 1991-02-01 | 1992-10-20 | Yeda Research And Development Co., Ltd. | Distributed resonant cavity light beam modulator |
JP2003154563A (en) * | 2001-11-26 | 2003-05-27 | Sumitomo Heavy Ind Ltd | Injection-controlling system |
JP2008086222A (en) * | 2006-09-29 | 2008-04-17 | Daiwa Seiko Inc | Spinning case |
JP2018069626A (en) * | 2016-10-31 | 2018-05-10 | 住友重機械工業株式会社 | Injection molding machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932955A (en) * | 1972-07-25 | 1974-03-26 | ||
JPS61199919A (en) * | 1985-02-28 | 1986-09-04 | Hishiya Seiko Kk | Control of injection process in injection molder |
-
1988
- 1988-03-01 JP JP63048424A patent/JPH0818355B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4932955A (en) * | 1972-07-25 | 1974-03-26 | ||
JPS61199919A (en) * | 1985-02-28 | 1986-09-04 | Hishiya Seiko Kk | Control of injection process in injection molder |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5157537A (en) * | 1991-02-01 | 1992-10-20 | Yeda Research And Development Co., Ltd. | Distributed resonant cavity light beam modulator |
JP2003154563A (en) * | 2001-11-26 | 2003-05-27 | Sumitomo Heavy Ind Ltd | Injection-controlling system |
JP2008086222A (en) * | 2006-09-29 | 2008-04-17 | Daiwa Seiko Inc | Spinning case |
JP2018069626A (en) * | 2016-10-31 | 2018-05-10 | 住友重機械工業株式会社 | Injection molding machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0818355B2 (en) | 1996-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |