JPS641513A - Molding of thick-wall product - Google Patents

Molding of thick-wall product

Info

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
Application number
JP4842488A
Other languages
Japanese (ja)
Other versions
JPH011513A (en
JPH0818355B2 (en
Inventor
Shigeru Fujita
Hiroshi Kanno
Takashi Kamiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP63048424A priority Critical patent/JPH0818355B2/en
Publication of JPS641513A publication Critical patent/JPS641513A/en
Publication of JPH011513A publication Critical patent/JPH011513A/en
Publication of JPH0818355B2 publication Critical patent/JPH0818355B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
JP63048424A 1987-03-24 1988-03-01 Thick product molding method Expired - Fee Related JPH0818355B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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