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FR2403513A1 - SAFETY CONTROL FOR PRESSES - Google Patents

SAFETY CONTROL FOR PRESSES

Info

Publication number
FR2403513A1
FR2403513A1 FR7826854A FR7826854A FR2403513A1 FR 2403513 A1 FR2403513 A1 FR 2403513A1 FR 7826854 A FR7826854 A FR 7826854A FR 7826854 A FR7826854 A FR 7826854A FR 2403513 A1 FR2403513 A1 FR 2403513A1
Authority
FR
France
Prior art keywords
presses
contacts
safety control
secondaries
transformers
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
FR7826854A
Other languages
French (fr)
Other versions
FR2403513B1 (en
Inventor
Franz Schneider
Burkhard Schumann
Gustav Krautter
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.)
L Schuler GmbH
Original Assignee
L Schuler 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
Priority claimed from DE19772742039 external-priority patent/DE2742039A1/en
Priority claimed from DE19772743539 external-priority patent/DE2743539A1/en
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Publication of FR2403513A1 publication Critical patent/FR2403513A1/en
Application granted granted Critical
Publication of FR2403513B1 publication Critical patent/FR2403513B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Fixing For Electrophotography (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

Commande à deux canaux dans laquelle on a branché de façon particulière les lignes transmetteuses d'ordres à l'appareil de commande. Les schémas comportent deux canaux 10, 11 avec des contacts a, b, c fermés quand les contacts a', b', c' sont ouverts et inversement. Les résistances 12, 13, 14 servent à établir une différence de potentielle appropriée. Les étages de sortie 16, 17 alimentent deux transformateurs dont les secondaires mettent à des potentiels symétriques les bobines 20 à 23 de manoeuvre du dispositif à soupapes de débrayage et de freinage.Two-channel control in which the command lines are specially connected to the control unit. The diagrams include two channels 10, 11 with contacts a, b, c closed when contacts a ', b', c 'are open and vice versa. The resistors 12, 13, 14 serve to establish an appropriate potential difference. The output stages 16, 17 supply two transformers, the secondaries of which put the operating coils 20 to 23 of the device with clutch and brake valves to symmetrical potentials.

FR7826854A 1977-09-19 1978-09-19 SAFETY CONTROL FOR PRESSES Granted FR2403513A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772742039 DE2742039A1 (en) 1977-09-19 1977-09-19 Punching or stamping machine safety circuit - uses similar duplicate circuits connected to exclusive=OR logic
DE19772743539 DE2743539A1 (en) 1977-09-28 1977-09-28 Punching or stamping machine safety circuit - uses similar duplicate circuits connected to exclusive=OR logic

Publications (2)

Publication Number Publication Date
FR2403513A1 true FR2403513A1 (en) 1979-04-13
FR2403513B1 FR2403513B1 (en) 1983-12-02

Family

ID=25772746

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826854A Granted FR2403513A1 (en) 1977-09-19 1978-09-19 SAFETY CONTROL FOR PRESSES

Country Status (4)

Country Link
FR (1) FR2403513A1 (en)
GB (1) GB2004390B (en)
IT (1) IT1098577B (en)
SE (1) SE437293B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388047B1 (en) * 1989-03-16 1995-06-21 LUCAS INDUSTRIES public limited company Device depowering apparatus

Also Published As

Publication number Publication date
GB2004390A (en) 1979-03-28
IT7827585A0 (en) 1978-09-13
FR2403513B1 (en) 1983-12-02
SE7809727L (en) 1979-03-20
SE437293B (en) 1985-02-18
IT1098577B (en) 1985-09-07
GB2004390B (en) 1982-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse