| 摘要 |
A driving control device, adapted on an electronic sewing machine with a computer (10) and a needle stop automatic system, is provided with electric drive- and control circuits which by generation of short pulses from the motor regulator (16) move the needle intermittently into the upper and lower end positions, respectively. The pulses for this type of driving the machine may last for at most the time of half a machine cycle. A longer activation of the regulator effects a continuous running of the machine. |
