| 摘要 |
<p>An operating device for punches in punch heads, characterised by comprising:
- an electric motor (2),
- a speed reducer (4) coupled to the electric motor (2),
- a bar (6) rigid with the output shaft of the speed reducer (4),
- at least two link rods (16) eccentrically connected to said bar (6),
- a mass (22) connecting together the free part of the link rods (16),
- a linear striker (24).</p> |
