The Development History of Computerized Sewing Machines

On the basis of rapid advances in science and technology, embroidery machines are developing rapidly in the direction of automation, multi-head, and then computerization. Next, I will introduce the development history of computerized sewing machines.

In the 1950s, automatic embroidery machines began to appear abroad. Several embroidery machines are arranged side by side on a large table, and under the control of the perforation of the thick paper tape, the stretcher with the embroidery parts moves back and forth through a complicated mechanical mechanism to embroider patterns.

Because it is machine-automatic embroidering, it requires low manual skills, so it has the advantages of high production efficiency and stable embroidery quality. Before the 1980s, it was the main embroidery equipment in advanced foreign countries. But its "automatic" still has certain limits, for example, it still needs manual operation to handle broken wires and grass color changing wires.

Computerized sewing machines can be divided into multiple heads and single heads, but in terms of control principles, the two are basically the same. The mechanical structure of the machine head of the embroidery machine is basically similar to the principle of the ordinary sewing machine. The power of the machine head comes from a variable speed motor, which we call the 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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