GB2004390A - Safety control system or presses - Google Patents

Safety control system or presses

Info

Publication number
GB2004390A
GB2004390A GB7837059A GB7837059A GB2004390A GB 2004390 A GB2004390 A GB 2004390A GB 7837059 A GB7837059 A GB 7837059A GB 7837059 A GB7837059 A GB 7837059A GB 2004390 A GB2004390 A GB 2004390A
Authority
GB
United Kingdom
Prior art keywords
presses
control system
safety control
defect
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.)
Granted
Application number
GB7837059A
Other versions
GB2004390B (en
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 GB2004390A publication Critical patent/GB2004390A/en
Application granted granted Critical
Publication of GB2004390B publication Critical patent/GB2004390B/en
Expired 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)
  • Fixing For Electrophotography (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

In a known type of two-channel safety control system for presses, which monitors itself for internal defects, the actual control lines lying outside a control unit may be damaged without this defect being detected. To overcome this defect the present system has a quasi- anticoincidence connection of the control lines to the control unit with respect to the two channels 10, 11. The control system can be used in presses which are liable to be operated on a single stroke basis or in punches. <IMAGE>
GB7837059A 1977-09-19 1978-09-15 Safety control system for presses Expired GB2004390B (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
GB2004390A true GB2004390A (en) 1979-03-28
GB2004390B GB2004390B (en) 1982-09-15

Family

ID=25772746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7837059A Expired GB2004390B (en) 1977-09-19 1978-09-15 Safety control system for presses

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388047A2 (en) * 1989-03-16 1990-09-19 LUCAS INDUSTRIES public limited company Device depowering apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388047A2 (en) * 1989-03-16 1990-09-19 LUCAS INDUSTRIES public limited company Device depowering apparatus
EP0388047B1 (en) * 1989-03-16 1995-06-21 LUCAS INDUSTRIES public limited company Device depowering apparatus

Also Published As

Publication number Publication date
SE7809727L (en) 1979-03-20
FR2403513A1 (en) 1979-04-13
SE437293B (en) 1985-02-18
IT1098577B (en) 1985-09-07
IT7827585A0 (en) 1978-09-13
FR2403513B1 (en) 1983-12-02
GB2004390B (en) 1982-09-15

Similar Documents

Publication Publication Date Title
NO891253D0 (en) SEPARATION SYSTEM WITH MULTIPLE MEMBRANES.
SE8204659D0 (en) CONTROL SYSTEM FOR PRESSES
AU9034782A (en) Damping-inking unit for offset printing presses
NO159112C (en) DEVICE FOR SANITAR UNITS OPERATED WITH PRESSURE WATER.
GB2024107B (en) Tightening device eg. for blankets on printing press
CA926939A (en) Load tap changer system including protective apparatus for monitoring the operation thereof
IT8221368A0 (en) MAIN CYLINDER FOR CLUTCH ENGAGEMENT.
AU502440B2 (en) Drive system for web offset printing press
JPS5522487A (en) Hydraulic pressure press provided with servoohydraulic pressure system controller for ram movement
CA984662A (en) Control system for press with sliding bolster plate
GB2004390A (en) Safety control system or presses
ES8305548A1 (en) Colour television monitor.
IT7830758A0 (en) DETECTION DEVICE FOR ENDOSCOPES IN PRESSURE VESSELS.
OA03798A (en) Automatic machine for fitting or removing caps on cylinder valves for liquefied or compressed gases.
SE8404750D0 (en) BENDING PRESS
JPS53105939A (en) Fault diagnosis method for serial printer device
JPS5284626A (en) Coupling
GB1086477A (en) Improvements in and relating to hydraulic presses
IT1099152B (en) DEVICE FOR THE ALTERNATIVE CONTROL FOR PUNCHES FOR DOUBLE PRESS
JPS5220479A (en) Press
JPS5237278A (en) Pressure detecting system for a machine press
JPS5389019A (en) Abnormality supervisory system for pipe line
JPS5417574A (en) Apparatus for inspecting filter cloth of filter press
JPS53110777A (en) Fluid pressure cylinder equipped with automatic direction changeover valve
JPS51146887A (en) Defect monitoring device for nondestructive inspection

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee