JPH04123860A - Method and device for controlling degassing device in injection molding machine - Google Patents

Method and device for controlling degassing device in injection molding machine

Info

Publication number
JPH04123860A
JPH04123860A JP24578990A JP24578990A JPH04123860A JP H04123860 A JPH04123860 A JP H04123860A JP 24578990 A JP24578990 A JP 24578990A JP 24578990 A JP24578990 A JP 24578990A JP H04123860 A JPH04123860 A JP H04123860A
Authority
JP
Japan
Prior art keywords
time
molding machine
injection molding
detecting
injection
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
Application number
JP24578990A
Other languages
Japanese (ja)
Inventor
Norimune Yamauchi
Kazuaki Kawai
Hitoshi Ishida
Original Assignee
Ryobi 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 Ryobi Ltd filed Critical Ryobi Ltd
Priority to JP24578990A priority Critical patent/JPH04123860A/en
Publication of JPH04123860A publication Critical patent/JPH04123860A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/14Machines with evacuated die cavity
    • B22D17/145Venting means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/32Controlling equipment

Abstract

PURPOSE: To rapidly execute the required treatment against the occurrence of defectivity by detecting an injection molten substance at two points of the cavity or the degassing route of the injection molding machine, calculating the flowing time, thereof comparing it with the set time and judging whether the defective products exist or not.
CONSTITUTION: The injection molten material is detected at two different points by 1st and the 2nd injection molten material detecting means 69, 101. Then based on the detected signal of each detecting means 69, 101, by calculating the flow time of the injection molten material with the controlling means 102, comparing the flow time with the set time preliminarily set, it is judged whether the defective products occurs or not.
COPYRIGHT: (C)1992,JPO&Japio
JP24578990A 1990-09-14 1990-09-14 Method and device for controlling degassing device in injection molding machine Pending JPH04123860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24578990A JPH04123860A (en) 1990-09-14 1990-09-14 Method and device for controlling degassing device in injection molding machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24578990A JPH04123860A (en) 1990-09-14 1990-09-14 Method and device for controlling degassing device in injection molding machine
EP19910307962 EP0475645B1 (en) 1990-09-14 1991-08-30 Method for controlling gas venting arrangement in injection molding apparatus, and device for controlling the same

Publications (1)

Publication Number Publication Date
JPH04123860A true JPH04123860A (en) 1992-04-23

Family

ID=17138856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24578990A Pending JPH04123860A (en) 1990-09-14 1990-09-14 Method and device for controlling degassing device in injection molding machine

Country Status (2)

Country Link
EP (1) EP0475645B1 (en)
JP (1) JPH04123860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013099756A (en) * 2011-11-07 2013-05-23 Direct 21 Corp Die casting system and die-casting manufacturing method
CN112170811A (en) * 2020-09-21 2021-01-05 滁州市共赢汽车配件有限公司 Extrusion casting equipment for clutch pressure plate cover

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2676293B2 (en) * 1992-03-13 1997-11-12 リョービ株式会社 Laminar injection molding machine and laminar injection molding method
JP2736491B2 (en) * 1992-11-25 1998-04-02 リョービ株式会社 Method and apparatus for discharging gas in mold
DE4239558A1 (en) * 1992-11-25 1994-05-26 Mueller Weingarten Maschf Process for producing negative pressure in a die casting machine
DE10022560A1 (en) * 2000-05-10 2001-11-15 Fuchs Lubritech Gmbh Pressure casting machine comprises a two-part casting mold forming a casting chamber via a ventilating channel, and a pressure monitoring device connected to the ventilating channel and arranged between a valve and a filter
US7481642B2 (en) * 2004-04-23 2009-01-27 Husky Injection Molding Systems Ltd. Method and apparatus for controlling a vent gap with active material elements
JP2014213573A (en) * 2013-04-26 2014-11-17 重夫 関根 Air vent valve device and injection molding mold

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250867A (en) * 1984-05-24 1985-12-11 Nippon Denso Co Ltd Method and device for die casting
JPS61245955A (en) * 1985-04-22 1986-11-01 Toshiba Corp Method for controlling flow rate of molten metal in casting
JPH0275962A (en) * 1988-09-12 1990-03-15 Ahresty Corp Method for detecting flowing of molten metal
JPH02197365A (en) * 1988-10-12 1990-08-03 Ryobi Ltd Method and apparatus for confirming action of gas venting device in die

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234659A (en) * 1985-08-09 1987-02-14 Hitachi Metals Ltd Method for changing over injection speed of die casting machine
CH668385A5 (en) * 1985-10-24 1988-12-30 Buehler Ag Geb Injection unit for a casting machine.
US4986338A (en) * 1988-05-16 1991-01-22 Ryobi Ltd. Gas venting arrangement in high speed injection molding apparatus and method for venting gas in the high speed injection molding apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250867A (en) * 1984-05-24 1985-12-11 Nippon Denso Co Ltd Method and device for die casting
JPS61245955A (en) * 1985-04-22 1986-11-01 Toshiba Corp Method for controlling flow rate of molten metal in casting
JPH0275962A (en) * 1988-09-12 1990-03-15 Ahresty Corp Method for detecting flowing of molten metal
JPH02197365A (en) * 1988-10-12 1990-08-03 Ryobi Ltd Method and apparatus for confirming action of gas venting device in die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013099756A (en) * 2011-11-07 2013-05-23 Direct 21 Corp Die casting system and die-casting manufacturing method
CN112170811A (en) * 2020-09-21 2021-01-05 滁州市共赢汽车配件有限公司 Extrusion casting equipment for clutch pressure plate cover

Also Published As

Publication number Publication date
EP0475645A2 (en) 1992-03-18
EP0475645A3 (en) 1992-12-09
EP0475645B1 (en) 1997-07-16

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