Application of stepper motor in filling and tail sealing machine:
Filling and sealing machine has a wide range of applications in cosmetics, light industry (daily chemical), pharmaceutical, food and other industries.
These industry products generally choose hoses as packaging containers, the equipment can fill the inside of the hose with ointment, cream, gels or viscous fluids, and then combine the hot melt printing code at the end of the hose, and trim and shape at the same time to produce finished products.
The speed control of the stepper motor is realized by the speed of the input pulse frequency.
When the frequency of the pulse decreases, the speed of the stepper motor decreases; When the frequency increases, the speed increases.
In packaging machinery, using stepper motors to drive actuators can not only make the structure of packaging machinery simple, easy to adjust, increase reliability, but also greatly improve accuracy.
Analysis of the workflow and working principle of stepper motor in filling and sealing machine
1. Workflow
Pipe silo (hose container) → automatic pipe loading→ identification and positioning→ hose internal cleaning (optional) → filling→ tail hot melt → pressing and sealing tail, typing code→ hose positioning→ shearing → finished product discharge.
2. Working principle
PLC program control. Automatic tube topping, color mark positioning, air cleaning of the inner space of the tube, injection nozzle deep into the pipe filling, hot gas heating of the inner wall of the pipe tail, cooling of the outer wall of the tail of the pipe (refrigerator drainage cycle), hot melt pressing typeing code, tail shearing, finished product discharge. Parameters are displayed digitally.
In the filling and sealing machine, the most critical step is the positioning of the hose. This product uses Shanshe stepper motor, which has precise positioning and high control accuracy.
Pre-set stepper motor speed. The color scale mode is equipped with a photoelectric switch, the photoelectric switch detects the position of the color scale, when the color scale is detected, a control switch signal is issued, and the stepper motor is pressed to the signal, stop rotating, delay for a certain period of time, and then rotate, and start again and again to ensure accurate positioning according to the position of the color scale.