Mitsubishi Denki Kabushiki Kaisha

Tomonori Abe

Yasuhiro Endo

Keiichi Takikoshi

Shoji Kasugai

Yoshifumi Nishizawa

Iwao Yamane

Satoru Yamada

Servo amplifier

Control box for a sewing machine

A sewing machine arrangement comprises a sewing machine, a motor for driving a spindle, and a motor for operating a two-axis drive mechanism. When the two-axis drive mechanism is driven at a maximum speed, processing is executed in which a speed (t) slower than the maximum speed is inserted by a program. Further, drive current flowing through the motor for driving the two-axis drive mechanism is set. A phase exciting method of a stepping motor is switched.

Control method for automatic sewing machine and apparatus thereof

In a method of and an apparatus for drivingly controlling an automatic sewing machine, the time for which a work holding unit is drivingly processed every seam lengths, the time from start of the drive processing of the work holding unit to the time at which the work holding unit starts movement, and the time of movement of the work holding unit are set whereby a drive signal of the work holding unit is controlled such that the work holding unit starts movement and is terminated in movement during a period for which a needle passes through a sewing material. Decision of the drive signal of the work holding unit is executed by a program with respect to all sewing speeds for all sewing lengths.

Method of and apparatus for controlling an automatic sewing machine

Growing community of inventors

Tokyo, Japan

Tomonori Abe