Application of servo motors in packaging machinery

Previously, we have introduced the advantages and application range of servo motors in detail. It can be seen that this motor has the advantages of good high-speed performance, strong overload resistance, stable low-speed operation, and high efficiency. And it can be applied to spark machines, manipulators, and other machines. So what are the applications of servo motors in packaging machinery? Let’s give a detailed analysis below!

1. Application in material measurement

Regarding the measurement of powdery materials with servo motors, screw measurement is currently commonly used. This method achieves the purpose of measurement through the number of turns of the screw rotation. In order to improve the accuracy of measurement, the screw speed is required to be adjustable and the position to be accurate.

If a servo is used to drive the screw and its advantages of high control accuracy and good torque-frequency characteristics are used, the same purpose of rapid measurement can be achieved. For the measurement of viscous materials, a servo motor can be used to drive the gear pump, and the measurement is performed through the meshing platform of a pair of gears in the gear pump.

2. Application in horizontal sealing device

In the bag-making automatic packaging machinery, the horizontal sealing device of the servo motor is an important mechanism. It not only requires accurate positioning, but also requires the linear speed of the horizontal sealing wheel to be equal to the film feeding speed during the horizontal sealing. After the sealing wheel rolls, the rotation speed of the transverse sealing wheel should increase, that is, the phases should separate at a faster speed.

The traditional method is achieved through mechanical methods such as eccentric or crank guide rod mechanisms. This is not only complex in mechanism and low in reliability, but also very troublesome to adjust. If this motor is used to drive the transverse sealing wheel, its motion performance can be used to meet the transverse sealing requirements through its non-constant speed motion, thereby improving work quality and efficiency.

3. Application in supplying materials

Packaging machinery supplies materials in two ways: intermittent and continuous.

In the intermittent material feeding method, such as in the intermittent bag making and packaging machine, in the past, the packaging film was ly fed by the crank linkage mechanism and the intermittent belt pulling method, which is not only complex in structure, but also difficult to adjust. If a servo motor is used to drive the pulling pulley, the distance, running time and pause time of each servo motor run can be preset in the controller. The acceleration and positioning performance of this motor can be used to accurately control the film supply. length purpose.

Especially in a control system with a color mark correction device, the deviation signal detected by the color mark detection switch is transmitted to the servo motor through the controller. The acceleration performance and control accuracy of the servo motor can enable the deviation to be corrected quickly and accurately.

In the continuous feeding of materials, the acceleration performance and overload capability of the servo motor can ensure continuous and uniform feeding of materials.