Introduction to the composition and working principle of computer embroidery machine

Summary:The computerized embroidery machine is mainly composed of three parts: mechanical system, transmission system and electr...
The computerized embroidery machine is mainly composed of three parts: mechanical system, transmission system and electric control system. The mechanical system is mainly composed of frame parts, box parts, thorn mechanism, thread take-up mechanism, color changing mechanism, thread clamping mechanism, embroidery frame parts, hand-pull switch box parts, etc. The main motor of the transmission system is divided into servo motor and Frequency conversion motor, most of the servo systems used in domestic embroidery machines are Dahao servo systems.

For example: in order to ensure the embroidery accuracy, the main motor is equipped with an electromagnetic brake device. The main motor drives the lower shaft through the synchronous toothed belt, the lower shaft drives the upper shaft through the sprocket, the upper shaft drives the cloth piercing mechanism and the thread take-up mechanism to move, and the lower shaft drives the rotary hook and the thread trimming mechanism through the bevel gear to move to complete the embroidery. Locking cover for the lower and upper threads of the machine to form embroidery stitches on the fabric.

The specific working principle of the embroidery machine.

First use embroidery CAD to make patterns, after generating the pattern, put the discs containing the embroidery program and pattern into the computer disk drive successively, and under the control of the program, the computer changes the pattern coordinate value to the displacement in the X and Y directions of the stretch frame The electrical signals of the same amount are sent to the X, Y, Z single-chip microcomputer system for motor acceleration and deceleration processing, and output three-phase six time signatures. The power amplifier box of the line motor performs power amplification, and the red X, Y stepper motor drives the tension The frame completes the feeding movement between X and Y; at the same time, the Z stepping motor is driven to drive the needle to move up and down, so that the embroidery continues continuously.

The Z stepping motor drives the transmission mechanism of the machine head to rotate through the synchronous toothed belt, etc. The specific mechanism of the machine head makes the lead mechanism and the needle lead the upper thread to make and move down, and pierce the fabric; the hook in the hooking mechanism rotates to make The upper thread goes around the bobbin case where the lower thread is hidden; the thread take-up mechanism moves, conveys the upper thread, tightens the stitch, and prepares the upper thread segment for the next stitch. The X and Y stepping motors drive the silk frame and the fabric to move in a plane through the synchronous toothed belt and other mechanisms. Each stitch point to be embroidered on the fabric is sent to the machine needle for embroidery. The speed of the up and down movement of the machine needle is coordinated with the direction, amount of movement and movement speed of the stretcher frame, so that the upper thread and the lower thread are twisted and placed on the fabric. Make a double bartack. When the embroidery continues continuously, the computerized embroidery of the pattern is completed.