| 摘要 |
A pressing machine, particularly a fast operating pressing machine equipped with a pressing head forced into longitudinal jigging motion in a working range over a bench (46) by an eccenter disk (8), having an eccentric shaft, through a crank arm (9). The pressing head (12) has a lower pressing block (13) removable from the work range above the bench (46) and an upper pressing block (14) arranged slideably in relation to the lower and forced into jigging motion by the crank arm (9) and there is a connecting element (15) joining the lower pressing block (13) to the upper pressing block (14). The connection between the upper and lower pressing block (14, 13) can be broken, thereby motion of the lower pressing block (13) can be stopped while the eccentric disk (8), its shaft and any flywheel or similar inertial mass connected with the upper pressing block (14) continues to rotate. Preferably, said lower pressing block (13) has a suspension point (17), and a stop (26) impacting onto the upper dead point position of the jigging motion of the upper pressing block (14), as well as a suspending element (18) connected to the suspension point (17), cast through reels (19 and 20) and strained by a counterweight (21).
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