Slide driving device for a press machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 7, 2003
Grant Date -
Sep 13, 2001
app pub date -
Feb 16, 2001
filing date -
Feb 22, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slide driving device for a press machine is driven by a first and second upper toggle link mechanisms pivotably mounted above a slide. The upper toggle links include first links connected at a connecting link along a common tangent line. The connecting link is driven by a connecting rod receiving eccentric movement from a crank shaft. The upper toggle links also include second links, each connected to lower toggle links. The lower toggle links operate a plunger and drive a slide. Alternative embodiments allow adaptive positions of the upper toggle links and crank shaft along with multiple lengths for the first and second links. A dynamic balancer, is not necessary for operation, but may be added to minimize vibration. Together, these embodiments provide a slide driving device with minimized vibration and simplified construction.
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