Question

Is it better to use stepper motors or servo motors for textile machinery and equipment?

Answer 1

Whether to choose a stepper motor or a servo motor in textile machinery and equipment requires a comprehensive evaluation based on specific application scenarios, performance requirements, cost considerations and other factors.

The following is an analysis of the advantages and disadvantages of the two motors in textile machinery and equipment:

Advantages and Disadvantages of Stepper Motors

Advantages:

1. High precision: The stepper motor can accurately control the position and speed of the motor by controlling the number and frequency of current pulses, and is suitable for application scenarios that require precise position control.

2. Strong controllability: The operation of the stepper motor is achieved by controlling the pulse current, so the motor can be controlled by software programming to meet various complex control requirements.

3. Simple structure: The stepper motor consists of three parts: the motor itself, the driver and the controller, and is relatively easy to install and maintain.

4. Low speed and high torque: At low speed, the stepper motor has a higher torque output, which is suitable for application scenarios that require low speed and high torque.

Disadvantages:

1. Low-frequency vibration: When running at low speed, the stepper motor is prone to low-frequency vibration, which affects the smoothness of movement.

2. Limited high-speed performance: It is difficult for stepper motors to run at higher speeds, and the torque will drop sharply at high speeds.

3. Limited control accuracy: The control of stepper motors is open-loop control. When the starting frequency is too high or the load is too large, it is easy to lose steps or stall, affecting the control accuracy.

4. Large inertia: The rotor mass of the stepper motor is large and the inertia is high. It is easy to generate vibration and noise when running at high speed.

Advantages and disadvantages of servo motors

Advantages:

1. High precision: The servo motor has a closed-loop control system that can achieve very precise position, speed and torque control.

2. Fast response: The servo motor has a fast response speed and can make corresponding actions in a short time.

3. Strong stability: The servo motor has stable output torque and speed, and is not easily affected by the working environment.

4. Strong adaptability: The servo motor has strong load resistance and can withstand large load fluctuations and fast start-up requirements.

5. Smooth low-speed operation: The servo motor will not produce the stepping operation phenomenon of the stepper motor when running at low speed, and the operation is more stable.

Disadvantages:

1. High cost: Servo motors and their control systems are usually more complex and costly than stepper motors.

2. Maintenance requirements: Although servo motors themselves work reliably, the system is complex and requires certain maintenance and upkeep.

Comprehensive evaluation

In textile machinery and equipment, if the application scenario has high requirements for accuracy, stability and fast response, and the budget allows, then servo motors may be a better choice. The high accuracy, fast response and stability of servo motors can ensure the efficient and stable operation of textile machinery and equipment. However, if the application scenario does not require particularly high accuracy and the budget is limited, then stepper motors are also a viable option. Through reasonable selection and control strategies, stepper motors can also meet the basic needs of textile machinery and equipment.

The final choice of which motor needs to be comprehensively evaluated based on the specific application scenario and performance requirements.

Answer 2

Stepper motors and servo motors have their own advantages and disadvantages, and it is more appropriate to choose the corresponding motor according to different applications and needs. The advantages of stepper motors are: high positioning accuracy, simple control, low price, etc.

If quantitative control is required and the cost is limited, a stepper motor can be selected; If high-precision position and speed control is required, servo motors can be selected.

Stepper motors are not only lower than servo motors, but also easy to commission and maintain. Stepper motors are stable under static conditions and can hold position (even under dynamic loads). However, if some applications have higher performance requirements, it must be a more expensive and complex servo motor.

Answer 3

Today's China is no longer the China that lacks food and clothing, we must not only eat enough but also eat well, the material of clothing can be pure natural, not chemically synthesized. Therefore, pure cotton clothing is becoming more and more popular. Of course, cotton cannot be turned into clothes on its own, it needs to use a special textile machine to achieve its purpose. Unlike ancient handlooms, modern looms work by motors, such as some small size.

The speed is proportional to the pulse frequency, and there is a wide speed range, which can be flexibly changed according to the actual textile needs.

In order to better control the stepper motor, we added an encoder structure to it, so that it can achieve closed-loop control, which is more conducive to the textile of cotton.