Safety circuit for automatic assembling machine
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United States of America Patent
Stats
-
Sep 16, 2003
Grant Date -
Apr 11, 2002
app pub date -
Oct 9, 2001
filing date -
Oct 11, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A safety circuit for protecting against an inadvertent operation activation of a pneumatic drive of an automatic assembling machine has at least one vertical cylinder (1) and one horizontal cylinder (2), each being controlled by one of first and second multi-way valves (3, 4) and fed by a primary pneumatic circuit. Two further pneumatic control circuits (8,9) are included in the automatic assembling machine that are automatically switch into and out of the primary pneumatic circuit, wherein the at least one vertical cylinder (1) and the at least one horizontal cylinder (2), after the 'switching into', either remains in its current position or moves to a rest position. Opened and closed switching of a pneumatic primary circuit is caused according to an activated mode-of-operation set by a system control (SPS) of the automatic assembling machine.
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