ReeR India – Automatic Lines of Assemblage
Published on : Saturday 03-02-2024
Protection of benches of assemblage and automation with different levels of interaction with the operator.
In this specific case, we will see how they were protected the operator gate of a series of automatic benches pedal assembling mounting (clutch and brakes) the in the automotive sector. The benchere are manufactured by DeD Automation Srl, an Italian company for design and construction of automation systems for special machines and electrical system.
The operator must enter the work pieces and start the machine using a start command. During the machine cycle the operator gate is protected by light curtains.
All the other sides of the bench are protected by transparent panels that prevent uncontrolled access.
Safety light curtains, start, stop and reset buttons are managed by the Mosaic safety controller.
MOSAIC M1 safety controller: This guarantees a high level of flexibility of the safety system and reduces the number of components and therefore footprint and
wiring. It promotes faster electrical cabinet construction.
The protection system has been completed with: EOS4 903 x light curtain 30 mm resolution (hands), protected height 910 mm.
The height of the light curtains protects the entire working areas.
The height of the light curtains prevents from reaching the dangerous point also if leaning above the last beam of vertical light curtain.
The height of the light curtain and its position are in relation to the minimum safety distance:
(S = K x T + C).
Where: S – minimum safety distance between the protection and hazardous point, expressed in mm.
K – speed of approach of the body or parts of the body, expressed in mm / sec.
K = 2000 mm/sec. for safety distance up to 500 mm (for arm movement speed)
K = 1600 mm/sec. for safety distance higher than 500 mm (body movement speed)
T – total stopping time of the machine, consisting of:
t1 reaction time of the protective device in seconds
t2 reaction time of the machine in seconds, until it stops the hazardous action.
C – additional distance in mm.
The production process phases and the assembly instructions of the components are displayed on the display of the operating panel that integrates: reset for the light curtains, operator controls, alarm reset, manual or automatic operation selector and command to see on the display of the waste during processing.
The height of the light curtains protects the entire working areas.
The height of the light curtains prevents from reaching the dangerous point also if leaning above the last beam of vertical light curtain.
(Please refer to the Safety Guide on ReeR Website www.reersafety.com for more information.)
Founded in Turin (Italy) in 1959, ReeR distinguished itself for its strong commitment to innovation and technology. A steady growth throughout the years allowed ReeR to become a point of reference in the safety automation industry at a worldwide level. The Safety Division is in fact today a world leader in the development and manufacturing of safety optoelectronic sensors and controllers.
ReeR is ISO 9001, ISO 14001 and ISO 45001 certified.
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