Servo motor VS variable frequency motor = Mercedes-Benz VS roller coaster

What are servo motors and variable frequency motors?

Frequency conversion motor refers to a motor that operates continuously within the range of 10% to 100% rated speed with 100% rated load under standard environmental conditions, and the temperature rise will not exceed the motor's calibrated allowable value. Easy speed regulation and energy saving. The AC motor has the advantages of simple structure, small volume, small inertia, low cost, easy maintenance and durability. The capacity can be expanded to achieve high speed and high voltage operation. The servo motor can control the speed and position accuracy very accurately, and can convert the voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator, and has the characteristics of small electromechanical time constant, high linearity, and starting voltage. It can convert the received electrical signal Converted to angular displacement or angular velocity output on the motor shaft.

What is the difference between a servo system and a frequency conversion system?

The servo system has one more position control loop than frequency conversion. If you only do speed control, the control principle is actually the same as frequency conversion. The so-called precise speed only depends on the number of encoder lines of the motor and the control algorithm of the servo. Because of the consideration of precise position control, the configuration of servo motors is relatively higher than that of variable frequency motors. The cloth stretching machine of the servo system operates very smoothly, and the machine is accurate and stable. Compared with the roller coaster, the stretching machine of the frequency conversion system lacks stability and positional accuracy.

Advantages of servo motor

1. Accurate position control, more even head and tail; faster and more stable acceleration and deceleration, effectively improving the high-speed running time ratio, and higher spreading efficiency; constant torque regardless of low speed or high speed; low noise.

2. Cloth feeding motor servo motor, more accurate cloth feeding.

3. It adopts the rear drive operation, the advantage: the cloth bucket and the weight of the fabric are at the rear of the machine, and the operation is more stable.

Blue Lotus 1205 servo stretching machine

1. The biggest feature of the blue lotus spreader is the fully automatic servo spreader, which is mainly reflected in the fact that the blue lotus spreader is controlled by a servo motor, while the counterparts use a common frequency conversion motor. Reduce labor intensity and dependence on labor, and operate intelligently throughout the process.

2. Toothed belt encoder system, precise positioning of the cloth length, four-wheel drive, improve the accuracy and stability of the machine operation, not easy to slip, emergency braking does not drag the cloth;

3. Professional wrinkle-removing horizontal tension-free spreading system, any point as the origin of spreading, easy to operate;

4. All parameters can be set and changed. Blue Lotus adopts computer and servo control, such as cutter speed, cutting distance and other parameters can be changed, and the position is precise and stable.