Computer embroidery machines can be divided into multiple heads and single heads, but in terms of control principles, the two are basically the same. This article only takes a single-head single-needle embroidery machine as an example for analysis. The mechanical structure of the head of the embroidery machine is basically similar to the principle of an ordinary sewing machine. The power of the head comes from a variable speed motor, which we call a power motor. The power motor can be an electromagnetic clutch motor. The power motor only drives the needle of the sewing machine to move up and down. Each revolution can make the needle go up and down once to complete one stitch. When embroidering, the fabric is fixed on a stretcher, and the movement of the stretcher is controlled by two control motors. Here we use stepper motors. The synchronous adjustment of the power motor and the stepping motor is controlled by a computer.

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