Turning Of Thread-Forming Parts With Motors (2)

In Fig6.63 the unscrewing gears 2 are driven by the motor through a pair of bevel gears 5. After the mold opened, the motor drives a pair of bevel gears 5, the gear 3 turns because gear 3 is connected with gear 5 by shaft 4, so the screw core 1 is unscrewed out of the workpiece. They can be driven by electric motors with internal deceleration gears, pneumatic or hydraulic motors.