Protection apparatus for an injection molding machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 18, 2003
Grant Date -
Sep 20, 2001
app pub date -
Mar 16, 2001
filing date -
Mar 17, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A protection apparatus for an injection molding machine includes an overrun detection mechanism and a control section. The overrun detection mechanism includes an element to be detected which is attached to one of a movable member of a movable mechanism and a stationary member facing the movable member, and a detection unit attached to the other of the movable member and the stationary member. The detection unit detects the element when the movable member has moved to an overrun position. The control section forcedly stops operation of a drive unit which moves the movable member, when the detection unit detects the element. In a case in which the control system of the injection molding machine suffers erroneous operation or temperature drift and a movable member is on the verge of overrun during operation of the injection molding machine, when the movable member moves to the preset overrun position, the element is detected by the detection unit, so that the control section forcedly stops the operation of the drive unit which moves the movable member.
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