| 摘要 |
<p>A slide driving device (2) for a press machine (1) is driven by a first and second upper toggle link mechanisms (12) pivotably mounted above a slide (8). The upper toggle links include first links (13) connected at a connecting link (17) along a common tangent line (19). The connecting link is driven by a connecting rod (21) receiving eccentric movement from a crank shaft (20). The upper toggle links also include second links (15), each connected to lower toggle links (23). The lower toggle links operate a plunger (22) and drive the 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 (31), is not necessary for operation, by may be added to minimize vibration. Together, these embodiments provide a slide driving device with minimized vibration and simplified construction. <IMAGE></p> |
