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Shantou Shuangli Machinery Factory
Contact: Yu Hongliang Manager
Phone: 18955651595
Phone: 86-1396-6902200
Address: Shuangli Machinery Factory, Jinping District Industrial Park, Jinping District, Shantou City, Guangdong Province, China

Industry knowledge

How much do you know about the correct operation of the film blowing machine?

编辑:Shantou Shuangli Machinery Factory  时间:2019-10-16

Preparation work and precautions before starting the pvc film blowing machine:

1. Check whether the unit installation work is installed as required, and check that the bolts are well tightened.

2. Check and add the lubricating oil in the gearbox and air compressor, and check the lubrication of the mechanical transmission parts.

3. Check the power supply and electrical parts, and all parts should be safely grounded.

4. If the barrel is not filled with plastic, and the temperature is not up to the requirement, it is forbidden to start.

5. Check that there is no foreign matter in the blank, and no iron filings or other unqualified materials are mixed in the raw materials.

6. The material requirements should be dry, otherwise it should be pre-dried.

7. Check that the heating system and temperature measurement system of this unit are intact.

8. During the start-up process, irrelevant personnel should leave to prevent local overheating of the material from rushing out and burns, belts and mixing drums to be pierced, and hair and clothing from being rolled in.

Normal start-up steps of pvc film blowing machine:

1. Heat the extruder body, head, die head, and control the temperature of each point within the index.

2. If you drive after a long stop, the heating temperature of each point needs to be kept at a constant temperature for 10-30 minutes after reaching the target range. If you drive within half an hour of parking, no constant temperature is required.

3. Start the air compressor and stop when the cylinder pressure is 6-8kg/cm.

4. According to the film folding diameter, thickness requirements and extruder production capacity for processing, estimate the traction speed and stable bubble diameter.

5. After the temperature of each point meets the requirements, put on labor protection supplies, and start the tractor, blower, and extruder in order.

6. When the die outlet is uniform and consistent, you can wear gloves to slowly pull up the tube blank, and at the same time, close the end of the tube blank and slightly open the air inlet regulating valve to blow a small amount of compressed air from the center hole of the mandrel. Carefully guide the foam stabilizer, herringbone plate, and penetrate the traction roller and guide roller until it is taken up.

7. Check the thickness and width of the film everywhere, and adjust them to meet the requirements.