FR2273179A1 - Hydraulic drive control system - has units one behind the other each acting on one in front - Google Patents

Hydraulic drive control system - has units one behind the other each acting on one in front

Info

Publication number
FR2273179A1
FR2273179A1 FR7512219A FR7512219A FR2273179A1 FR 2273179 A1 FR2273179 A1 FR 2273179A1 FR 7512219 A FR7512219 A FR 7512219A FR 7512219 A FR7512219 A FR 7512219A FR 2273179 A1 FR2273179 A1 FR 2273179A1
Authority
FR
France
Prior art keywords
units
behind
unit
acting
control system
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.)
Withdrawn
Application number
FR7512219A
Other languages
French (fr)
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.)
Idra Pressen GmbH
Original Assignee
Idra Pressen GmbH
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 Idra Pressen GmbH filed Critical Idra Pressen GmbH
Publication of FR2273179A1 publication Critical patent/FR2273179A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The system si particularly for pressure diecasting equipment, and has a number of control units (1-5) mounted one behind the other, each with a sliding component (11) whose stroke is adjustable, and which moves axially under pressure. The sliding component of each unit acts on the unit in front of it, and the foremost component acts as a return piston and location pin for the control mechanism, while the rearmost unit is supported by remaining a stationary. The units can be mounted in a common housing, whose front face has the pin passing through it, while the rearmost unit bears against an adjusting screw (8) in the housing (6).
FR7512219A 1974-05-28 1975-04-18 Hydraulic drive control system - has units one behind the other each acting on one in front Withdrawn FR2273179A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2425737 1974-05-28

Publications (1)

Publication Number Publication Date
FR2273179A1 true FR2273179A1 (en) 1975-12-26

Family

ID=5916653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512219A Withdrawn FR2273179A1 (en) 1974-05-28 1975-04-18 Hydraulic drive control system - has units one behind the other each acting on one in front

Country Status (3)

Country Link
BR (1) BR7503321A (en)
FR (1) FR2273179A1 (en)
IT (1) IT1037908B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246916B3 (en) * 2002-10-08 2004-04-15 Holter Regelarmaturen Gmbh & Co. Kg Multi-stage throttle for flowing medium has several control cone/seat units, one adjustable independently of the others, and acting in closing direction with adjusting cylinder/piston units to prevent cavitation damages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246916B3 (en) * 2002-10-08 2004-04-15 Holter Regelarmaturen Gmbh & Co. Kg Multi-stage throttle for flowing medium has several control cone/seat units, one adjustable independently of the others, and acting in closing direction with adjusting cylinder/piston units to prevent cavitation damages

Also Published As

Publication number Publication date
BR7503321A (en) 1976-04-20
IT1037908B (en) 1979-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse