DE69526180D1 - Vorrichtung zum messen des drucks im formenhohlraum während des spritzgiessens - Google Patents

Vorrichtung zum messen des drucks im formenhohlraum während des spritzgiessens

Info

Publication number
DE69526180D1
DE69526180D1 DE69526180T DE69526180T DE69526180D1 DE 69526180 D1 DE69526180 D1 DE 69526180D1 DE 69526180 T DE69526180 T DE 69526180T DE 69526180 T DE69526180 T DE 69526180T DE 69526180 D1 DE69526180 D1 DE 69526180D1
Authority
DE
Germany
Prior art keywords
measuring
pressure
molding
during injection
space during
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.)
Expired - Lifetime
Application number
DE69526180T
Other languages
English (en)
Inventor
H Watkins
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.)
RJG Technologies Inc
Original Assignee
RJG Technologies Inc
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 RJG Technologies Inc filed Critical RJG Technologies Inc
Application granted granted Critical
Publication of DE69526180D1 publication Critical patent/DE69526180D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0002—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in ohmic resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76006—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/7624—Ejection unit
    • B29C2945/76244—Ejection unit ejectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76257—Mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76481—Strain gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
DE69526180T 1994-05-31 1995-05-30 Vorrichtung zum messen des drucks im formenhohlraum während des spritzgiessens Expired - Lifetime DE69526180D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/250,914 US5472331A (en) 1994-05-31 1994-05-31 Apparatus for sensing pressure in mold cavity during injection of molded parts
PCT/US1995/006759 WO1995032855A1 (en) 1994-05-31 1995-05-30 Apparatus for sensing pressure in mold cavity during injection of molded parts

Publications (1)

Publication Number Publication Date
DE69526180D1 true DE69526180D1 (de) 2002-05-08

Family

ID=22949685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69526180T Expired - Lifetime DE69526180D1 (de) 1994-05-31 1995-05-30 Vorrichtung zum messen des drucks im formenhohlraum während des spritzgiessens

Country Status (5)

Country Link
US (1) US5472331A (de)
EP (1) EP0714344B1 (de)
CA (1) CA2168467A1 (de)
DE (1) DE69526180D1 (de)
WO (1) WO1995032855A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602339A (en) * 1994-03-24 1997-02-11 Dynisco, Inc. Injection molding machine pressure transducer with trapezoidal cavity
US5846573A (en) * 1994-12-09 1998-12-08 Rjg Technologies, Inc. Mold core-pin deflection transducer
US6048189A (en) * 1995-04-05 2000-04-11 Japan Synthetic Rubber Co., Ltd. Blow molding apparatus
JP3937525B2 (ja) * 1997-09-10 2007-06-27 双葉電子工業株式会社 圧力センサ付エジェクタピン
GB2366538B (en) * 2000-09-09 2002-10-30 Alan Roger Harper Production of composite mouldings
ITTO20010711A1 (it) 2001-07-20 2003-01-20 Attrezzature Speciali Srl As Iniettore per stampi di iniezione di materie plastiche.
WO2003031146A1 (en) 2001-10-12 2003-04-17 Mold-Masters Limited Valve pin with thermocouple
US7182893B2 (en) 2002-10-11 2007-02-27 Mold-Masters Limited Valve gated nozzle having a valve pin with a sensor
DE10210923B4 (de) * 2002-03-13 2004-08-12 Demag Ergotech Gmbh Druckmesseinrichtung für eine Spritzgießmaschine
TWI226934B (en) * 2003-11-27 2005-01-21 Hong Hocheng System of nanoimprint with mold deformation detector and method of monitoring the same
US20050236725A1 (en) * 2004-04-23 2005-10-27 Niewels Joachim J Method and apparatus for countering mold deflection and misalignment using active material elements
US20050236727A1 (en) * 2004-04-23 2005-10-27 Niewels Joachim J Method and apparatus for mold component locking using active material elements
DE102005027264B4 (de) * 2005-06-13 2007-05-31 Karl Hehl Vorrichtung und Verfahren zum Detektieren einer Kraft an einer Spritzgießmaschine
US7828541B2 (en) * 2007-05-22 2010-11-09 Coeur, Inc. Motor driven mold
US7588439B2 (en) * 2007-07-20 2009-09-15 Husky Injection Molding Systems Ltd. Compensating core for use with a molding system
CN105307833B (zh) * 2013-04-30 2017-08-18 迈克尔·雷蒙德·格罗洛 中间连接器
EP3019322B8 (de) * 2013-07-09 2019-06-12 Husky Injection Molding Systems Ltd. Formstapel
EP3325247B1 (de) 2015-07-22 2019-04-24 iMFLUX Inc. Verfahren zum spritzgiessen unter verwendung eines oder mehrerer externer sensoren als virtuelle hohlraumsensor
WO2017015572A1 (en) 2015-07-22 2017-01-26 iMFLUX Inc. Method of injection molding using one or more strain gauges as a virtual sensor
MX2018015879A (es) 2016-06-30 2019-03-28 Imflux Inc Metodo para distribuir uniformemente fusion plastica en un sistema de canal caliente utilizando galgas extensiometricas.
EP3619022B1 (de) 2017-05-02 2021-10-13 Imflux Inc. Verfahren zur steuerung einer rate oder kraft einer klemme in einem gussformsystem mit einem oder mehreren dehnungsmessern

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399342A (en) * 1944-09-12 1946-04-30 American Cyanamid Co Apparatus for determining mold cavity pressure
GB1333167A (en) * 1971-02-23 1973-10-10 Peak Components Ltd Strain measuremenet
US3807914A (en) * 1972-12-04 1974-04-30 Control Process Inc Cavity pressure control system
US3840312A (en) * 1973-04-11 1974-10-08 Control Process Inc Dynamic pressure control system
US4060362A (en) * 1975-05-12 1977-11-29 International Business Machines Corporation Injection molding same cycle control
US4342233A (en) * 1980-08-18 1982-08-03 The National Machinery Company Load detecting probe
JPS5853732A (ja) * 1981-09-26 1983-03-30 Yamashiro Seiki Seisakusho:Kk 射出成形機における金型内圧力検出装置
US4478089A (en) * 1982-06-29 1984-10-23 International Business Machines Corporation Tri-axial force transducer for a manipulator gripper
DE3418692A1 (de) * 1984-05-19 1985-12-05 Klaus Prof. Dr.-Ing. 4006 Erkrath Brankamp Verfahren zum messen des forminnendruckverlaufes bei spritzgiessmaschinen sowie spritzgiessmaschine zum durchfuehren dieses verfahrens
JPS62227616A (ja) * 1986-03-28 1987-10-06 Sumitomo Heavy Ind Ltd 射出成形における金型内樹脂圧力の検出方法
JPH0622841B2 (ja) * 1986-06-23 1994-03-30 フアナツク株式会社 計量・型開き同時動作制御方式
US4760749A (en) * 1987-01-27 1988-08-02 Groleau Rodney J Mold pressure sensor body
JP2626007B2 (ja) * 1988-12-16 1997-07-02 松下電器産業株式会社 半導体チップのモールドプレス方法
JPH02227616A (ja) * 1989-02-28 1990-09-10 Sumitomo Precision Prod Co Ltd 切出量自動修正フィーダー
US4925619A (en) * 1989-05-18 1990-05-15 Westinghouse Electric Corp. Rod pressurization sensing apparatus
CH679469A5 (en) * 1989-08-29 1992-02-28 Kistler Instrumente Ag Force-measuring ejector pin for pressure measurement - pressure in cavity is measured by axially aligned transducer in ejector pin and close to pressure source
JPH05253983A (ja) * 1992-03-10 1993-10-05 Nikon Corp 射出成形装置

Also Published As

Publication number Publication date
MX9600426A (es) 1998-06-30
EP0714344A1 (de) 1996-06-05
CA2168467A1 (en) 1995-12-07
US5472331A (en) 1995-12-05
EP0714344B1 (de) 2002-04-03
WO1995032855A1 (en) 1995-12-07
EP0714344A4 (de) 1997-11-05

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Legal Events

Date Code Title Description
8332 No legal effect for de