The three-tier co-extrusion blown film machine maintenance

The three-tier co-extrusion blown film machine maintenance

Multi-layer co-extrusionBlown film machineAlso divided into the following kinds, such as layer co-extrusion blown film machine, three-tier co-extrusion blown film machine, five layers co-extrusion blown film machine seven layers co-extrusion blown film machine is belong to this kind of products such as:

The main characteristics of five layers co-extrusion blown film machine:

Five layers co-extrusion blown film line, mainly is suitable for the HDPE, MHDPE, LDPE, LLDPE, MLLDPE, PA, EVOH resin with gases trap, the production of thin film is mainly used for packaging, high-grade food bag, vacuum bag, liquid packaging bags and other packaging materials, incense, fresh, anti-corrosion, airtight, extend the shelf life of the packing.

1, the die head system:

1) before the outage using pure copper scraper cleaning product material, paraffin wax cleaning membrane, reduce the influence of deposition on the bubble.

(2) after a key in a timely manner to cover protective blanket, avoid mold damage.(blow machine adopts the method)

(3) banned for welding, cutting die.

(4) periodically check each temperature zone and membrane heating plug-in temperature, current, temperature correction.

(5) correction die head level and center point matching with traction.

6 mold screw removed using torque wrench, torque operation by the regulation, high temperature parts screw using molybdenum disulfide grease.

All landowners boot heating to secondary heating method, to avoid temperature overshoot.

2, traction device maintenance: herringbone folding pollution-free, clamping drawing roller pressure (cooling) is suitable for, no condensate, flattening roller flexible operation.

3, feeder system, timely cleaning filter, check whether there is any leakage on negative pressure feeding system.

4, corona processor maintenance:

1) replace the silicone tube in time;

(2) regularly clean high voltage transformer, discharge, discharge frame, electric cabinet, adjust the discharge gap:

3. Check the equipment before starting the humidity, avoid discharge short circuit, check the discharge roller bearing operating temperature.

5, the wind ring maintenance: clear in time the wind ring dust and debris

6, extruder system:

(1) to observe the pressure gauge and the main motor current, clear in time of net

(2) correction of thermocouple and the actual temperature measurement error.

(3) correction of extruder place situation, adjust the sheave ensure extruder placement Angle and level.

(4) check the inverter frequency, current, temperature rise, clean up the motor and frequency converter dust on time.

5. Check the gear box, screw, main motor with and without noise and overheating.

5, electrical maintenance

1) guarantee maintain appropriate temperature and humidity, keep a good grounding, pay attention to eliminate static electricity.

(2) with some core parts maintenance is prohibited.

(3) power supply is stable, reliable, performance parameters and operator requirements,

(4) clean the radiator on a regular basis.

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