ES2045221T3 - Servosistema electrohidraulico, especialmente para maquinas de moldeo por inyeccion. - Google Patents

Servosistema electrohidraulico, especialmente para maquinas de moldeo por inyeccion.

Info

Publication number
ES2045221T3
ES2045221T3 ES89103985T ES89103985T ES2045221T3 ES 2045221 T3 ES2045221 T3 ES 2045221T3 ES 89103985 T ES89103985 T ES 89103985T ES 89103985 T ES89103985 T ES 89103985T ES 2045221 T3 ES2045221 T3 ES 2045221T3
Authority
ES
Spain
Prior art keywords
signal
pressure
volume
valve
control
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
ES89103985T
Other languages
English (en)
Inventor
Rajamouli Gunda
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.)
Vickers Inc
Original Assignee
Vickers 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 Vickers Inc filed Critical Vickers Inc
Application granted granted Critical
Publication of ES2045221T3 publication Critical patent/ES2045221T3/es
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
    • 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
    • B29C45/82—Hydraulic or pneumatic circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7759—Responsive to change in rate of fluid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7761—Electrically actuated valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

SERVOSISTEMA ELECTROHIDRAULICO QUE FORMA UN CIRCUITO DE CONTROL PARA CONTROLAR LA PRESION DE FLUIDO EN UNA CAVIDAD DE VOLUMEN INDETERMINADO QUE INCLUYE UNA VALVULA (14), SIENDO EL FLUJO SUMINISTRADO FUNCION DE LA POSICION DE LA VALVULA (16). UN CONTROLADOR DE VALVULA ELECTRONICA (40) RECIBE UNA SEÑAL DE CONTROL DE LA PRESION (PC) DESDE UN DISPOSITIVO ELECTRONICO REMOTO (42), Y UNA SEÑAL DE RETROALIMENTACION DE SEÑAL (P) DE UN SENSOR DE PRESION (46) DEL CIRCUITO. DICHAS SEÑALES (P,PC) SON COMPARADAS EN UN MODO DE OPERACION DE CONTROL DE PRESION, Y SE UTILIZA UNA DIFERENCIA O SEÑAL DE ERROR PARA GENERAR LAS SEÑALES DE CONTROL DE LA VALVULA (YE). UN SEGUNDO SENSOR (44) SUMINISTRA UNA SEÑAL DE RETROALIMENTACION DE POSICION (Y). LA SEÑAL DE RETROALIMENTACION DE PRESION (P) ES MODIFICADA CON UNA GANANCIA RESPECTIVA (KP), LA SEÑAL DE RETROALIMENTACION DE POSICION (Y) ES MODIFICADA CON OTRA GANANCIA (KD), Y LA DIFERENCIA O SEÑAL DE ERROR ES VARIADA CON OTRA GANANCIA (KE). EL VOLUMEN DE LA CAVIDADES DETERMINADO COMO FUNCION DE LAS SEÑALES DE RETROALIMENTACION DE PRESION Y POSICION (P,Y). LAS GANANCIAS DEL CIRCUITO DE CONTROL, ESPECIFICAMENTE KE Y KD, SON MODIFICADAS COMO FUNCION DEL VOLUMEN DE LA CAVIDAD PARA ADAPTAR EL SISTEMA A LAS VARIACIONES, DESEADAS O INVOLUMENTARIAS DEL VOLUMEN DE LA CAVIDAD.
ES89103985T 1988-03-07 1989-03-07 Servosistema electrohidraulico, especialmente para maquinas de moldeo por inyeccion. Expired - Lifetime ES2045221T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/164,957 US4798527A (en) 1988-03-07 1988-03-07 Control system for injection molding machine

Publications (1)

Publication Number Publication Date
ES2045221T3 true ES2045221T3 (es) 1994-01-16

Family

ID=22596818

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89103985T Expired - Lifetime ES2045221T3 (es) 1988-03-07 1989-03-07 Servosistema electrohidraulico, especialmente para maquinas de moldeo por inyeccion.

Country Status (8)

Country Link
US (1) US4798527A (es)
EP (1) EP0332132B1 (es)
JP (1) JP2923299B2 (es)
CN (1) CN1023196C (es)
AU (1) AU603284B2 (es)
CA (1) CA1305644C (es)
DE (1) DE68909450T2 (es)
ES (1) ES2045221T3 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734955A1 (de) * 1987-10-15 1989-04-27 Rexroth Mannesmann Gmbh Elektrische messwertaufbereitung fuer ein regelventil
US5042530A (en) * 1989-04-25 1991-08-27 Hydril Company Subsea wellhead apparatus
US4979639A (en) * 1989-05-23 1990-12-25 The Coca-Cola Company Beverage dispenser control valve and ratio control method therefor
US5101862A (en) * 1991-08-08 1992-04-07 Leete Barrett C Rotary actuator and valve control system
US5526838A (en) * 1995-01-12 1996-06-18 Mac Valves, Inc. Method and valve assembly for controlling a pilot signal
FR2738613B1 (fr) * 1995-09-08 1997-10-24 Thomson Csf Procede d'asservissement d'une servovalve hydraulique pouvant etre asservie en debit et en pression
DE19603012C1 (de) * 1996-01-18 1997-09-04 Mannesmann Ag Plastifizier- und Einspritzeinheit einer Kunststoffspritzgießmaschine
CA2292279A1 (en) 1998-12-18 2000-06-18 Fluoroware, Inc. Creep resistant valve
DE10060285A1 (de) * 2000-12-05 2002-06-06 Bosch Gmbh Robert Verfahren zum Betrieb einer Regelanordnung für ein hydraulisches System
US7293910B2 (en) * 2001-05-24 2007-11-13 Masco Corporation Surge suppressor for a mixer head assembly
US7077290B2 (en) * 2002-05-17 2006-07-18 Pepsico, Inc. Beverage forming and dispensing system
US8056579B2 (en) * 2007-06-04 2011-11-15 Horiba Stec, Co., Ltd. Mass flow controller
US8033808B2 (en) * 2007-08-24 2011-10-11 Delta Pt, Llc Pressure compensating molding system
DE102008028190A1 (de) * 2008-06-12 2009-12-17 Abb Technology Ag Verfahren zum Betrieb eines elektropneumatischen Ventils
DE102008028192A1 (de) * 2008-06-12 2009-12-17 Abb Technology Ag Elektropneumatisches Ventil
DE102009004571A1 (de) * 2009-01-14 2010-07-22 Abb Technology Ag Verfahren und elektronische Einrichtung zum Prüfen von Ansteuerparametern eines elektro-pneumatischen Ventils bei einem pneumatischen Stellantrieb
GB0908982D0 (en) * 2009-05-26 2009-07-01 David Brown Hydraulics Ltd Controlled hydraulic systems
KR20140034211A (ko) 2011-05-26 2014-03-19 이턴 코포레이션 통합 센서를 갖는 밸브 어셈블리
DE102012109206B4 (de) * 2011-11-30 2019-05-02 Hanon Systems Ventil-Sensor-Anordnung
CN102729442B (zh) * 2012-07-04 2015-01-07 宁波巴斯顿机械科技有限公司 一种高精度高速闭环控制氮气辅助射胶注塑机
CN104571201A (zh) * 2014-12-31 2015-04-29 李久伦 三相电多通道温控器
CN104552855A (zh) * 2014-12-31 2015-04-29 李久伦 三相电多通道电压控制器
CN104571200A (zh) * 2014-12-31 2015-04-29 李久伦 三相电多通道控制器
CN104597941A (zh) * 2014-12-31 2015-05-06 李久伦 热流道温度控制系统主控器
CN109878045B (zh) * 2019-01-31 2020-12-29 贵州省材料产业技术研究院 智能调节模具型腔压力恒定与精准控制的控制装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088571A5 (es) * 1970-04-17 1972-01-07 Serea
US3941534A (en) * 1971-11-01 1976-03-02 Hunkar Laboratories, Inc. Injection molding control system
US3767339A (en) * 1971-11-01 1973-10-23 Hunkar Instr Dev Labor Inc Injection molding control
JPS48114573U (es) * 1972-04-03 1973-12-27
CH554741A (de) * 1973-02-07 1974-10-15 Netstal Ag Maschf Giesserei Kunststoff-spritzgiessmaschine mit programmiereinrichtung.
US3920367A (en) * 1973-05-10 1975-11-18 Cincinnati Milacron Inc Mold pressure control apparatus
US4161380A (en) * 1974-10-21 1979-07-17 Hpm Corporation Injection molding process control
DE2523600A1 (de) * 1975-05-28 1976-12-09 Bosch Gmbh Robert Elektrohydraulische steuereinrichtung
GB1518720A (en) * 1975-11-21 1978-07-26 Ishikawajima Harima Heavy Ind Hydraulic servomechanism
JPS5722564Y2 (es) * 1975-11-26 1982-05-17
CH642905A5 (de) * 1979-07-16 1984-05-15 Netstal Ag Maschf Giesserei Spritzgiessmaschine.
JPS56146741A (en) * 1980-04-18 1981-11-14 Hitachi Ltd Setting of holding time and system therefor
FR2511638A1 (fr) * 1981-08-21 1983-02-25 Marcel Manceau Procede de modulation de pression d'injection
US4456031A (en) * 1982-05-03 1984-06-26 Vickers, Incorporated Electro-hydraulic servo valve system
DE3319268C1 (de) * 1983-05-27 1984-09-13 Klöckner-Werke AG, 4100 Duisburg Regelvorrichtung fuer die Bewegung einer hydraulisch verschiebbaren Formaufspannplatte einer Spritzgiessmaschine
JPS60154028A (ja) * 1984-01-23 1985-08-13 Toshiba Mach Co Ltd 射出成形機の射出工程制御方法
DE3447709C1 (de) * 1984-12-28 1986-04-30 Karl 7298 Loßburg Hehl Steuervorrichtung fuer den hydraulischen Kreislauf einer Kunststoff-Spritzgiessmaschine
JPH0661810B2 (ja) * 1985-12-26 1994-08-17 日精樹脂工業株式会社 流体圧アクチュエ−タの制御装置
JPS62170318A (ja) * 1986-01-21 1987-07-27 北所　重二 射出成形装置

Also Published As

Publication number Publication date
EP0332132A3 (en) 1991-04-17
CN1023196C (zh) 1993-12-22
DE68909450D1 (de) 1993-11-04
JP2923299B2 (ja) 1999-07-26
CA1305644C (en) 1992-07-28
JPH01283401A (ja) 1989-11-15
AU2986789A (en) 1989-09-07
AU603284B2 (en) 1990-11-08
DE68909450T2 (de) 1994-04-21
CN1038966A (zh) 1990-01-24
US4798527A (en) 1989-01-17
EP0332132A2 (en) 1989-09-13
EP0332132B1 (en) 1993-09-29

Similar Documents

Publication Publication Date Title
ES2045221T3 (es) Servosistema electrohidraulico, especialmente para maquinas de moldeo por inyeccion.
US4901758A (en) Device for the remote control of pneumatically operated mechanisms, which has fast, high resolution response over a broad range of pressures and which is insensitive to position or vibration
US3971375A (en) Dental syringe
JPH09512650A (ja) スマートバルブポジショナ
ATE100533T1 (de) Praezisions-fluessigkeitsausgeber.
EP0217963A4 (en) DOSING AND KNEADING SYSTEM FOR INJECTION MOLDING DEVICES.
US4705067A (en) Electric-to-pressure transducer
DE3263568D1 (de) Electropneumatic door control
IT1254253B (it) Dispositivo d'azionamento lineare
EP4374904A3 (en) A modular system for monitoring and controlling the homeostasis in cavities, and a method for generating a volume of fluid in a cavity
KR940003702A (ko) 주입 몰딩장치에서 사용되는 제어장치
KR890009574A (ko) 사출압축성형의 몰드클램핑 압력제어방법 및 사출압축성형기
EP0335743A3 (en) Improved versatile interface means for computer-based control systems
US12352369B2 (en) Steam injection valve actuator, system, and method
ATE339713T1 (de) Spritzgiessmaschine mit online bedienbarem steuersystem
SE7903593L (sv) Servoventilaggregat
GB1270797A (en) Fluid operated servomechanism
US3521656A (en) Fluidic metering means
US3561474A (en) Servovalve output fluid velocity indicator
GB1481409A (en) Monitor systems
US3502094A (en) Fluid logic circuit
ES293695U (es) Dispositivo de inyeccion para materiales sinteticos en estado plastico
SU941701A1 (ru) Электрогидравлический след щий привод
Wagner Fluidicsߞa new control tool
SU1425275A1 (ru) Устройство дозированной подачи рабочего органа роторного экскаватора

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 332132

Country of ref document: ES