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Anji 7-layer co extrusion blown film machine renovation plan;
Sketch Map;
1. Disassemble, polish, remove rust, apply putty, sheet metal, perform appearance treatment, and repaint the overall mechanical parts.
2. Classify the guide rollers and accessories, clean and refurbish them. Replace it directly if it is severely damaged,
3. Conduct testing and processing on all motors. If they cannot be used normally, consider selling them as second-hand and purchasing new ones at the price difference. After all, motors are a type of energy consumption under different usage conditions, such as unloaded and energized loads.
4. Clean the cylinder first. If it is severely damaged, there is no need to repair or clean it, and new parts can be purchased directly.
5. The main heating coil and mold can be directly replaced, which is a vulnerable component and may cause short circuits and leakage due to aging.
6. The frequency converter "Hitachi SJ-300" can be used. If it breaks down later, consider replacing it.
7. Heating control adopts industrial control touch screen and temperature module PID closed-loop control, with precise temperature control and low energy consumption.
8. The whole machine tension control adopts synchronous linkage and single linkage, with closed-loop constant tension and taper tension switching to meet the winding requirements of different materials. It is equipped with a shaft type tension sensor for online real-time detection, fast response speed, and curve torque speed feedback.
9. Film width IBC internal cooling control, using three imported ultrasonic sensors to detect the diameter of the film bubble, processed and calculated by PLC-CPU, collected by AD module, analog output by DA module, controlling the following frequency of two frequency converters for inlet and outlet air, accurately controlling the size of the film bubble, discharging the hot air inside the film bubble, and allowing external cold air to enter the film bubble, achieving a circulation effect. Easy to operate, just input the width of the film.
Install 7 Mick weight centralized control systems on 7 extruders, linked with traction speed control, to ensure the overall thickness stability of the film, and online detect the ratio of extruder screw flow speed to raw material thickness. Easy to operate, just enter the weight and thickness values.
Revamp the edge correction machine by replacing the servo brushless motor with an encoder, using a U-shaped ultrasonic sensor to detect the edge of the film, unaffected by color, automatically returning to the center when powered on, and intelligent vector control for film edge tracking.
Separate linkage control is implemented for two rewinding machines, with any shutdown of one machine not affecting the overall control and operation of the machine. Two separate modules and touch screens are used to achieve online meter recording, online coil changing and winding, and tension synchronization functions.
Up rotation traction control, achieving forward and reverse rotation, centering, and automatic manual switching.
Electric control is implemented for the stable foam rack, which has the functions of opening and closing size and lifting.
Adopting a brand new electrical layout design, automated control, and eliminating traditional outdated technologies for the entire machine. No worries about future maintenance.
