Common problems of film blowing machine

The maintenance of the machine is very important. Long term full load operation will cause great loss to the fuselage. If the fuselage is not cleaned and maintained in time, it is easy to have problems. PE film blowing machine manufacturers today mainly share common problems of film blowing machine with you!

1. What are the functions of heating the bottom of the flat mouth machine?

To increase the firmness of the seal, more thick organ bags are used. Because the organ bag has four layers, the upper two layers are often rotten, and the lower seal is not firm, so the base heating is increased. (play the role of firm sealing)

2. How to solve the air leakage of regenerated material blown by film blowing machine?

(1) The temperature can be appropriately increased by 10-20 degrees, because there are many impurities in the production of recycled materials, and the temperature during production is generally about 10-20 degrees higher than the film blowing temperature.

(2) Increase the number of filter screen replacement, and add an additional layer of filter screen if necessary

Cause of air leakage: the recycled material will be mixed with some impurities, sand layer and so on, and the tightness is not very good, so it will leak.

3. Under what circumstances is it recommended to use single / twin screw and single / double die for film blowing machine?

(1) If both industrial bags and market bags need to be made, we recommend single die and single screw to facilitate the replacement of high and low pressure die.

(2) Twin screw is used to make large plastic bags. Single screw can not meet the extrusion capacity. Customers have high requirements for the tension of bags. Express film, food packaging film and medical packaging film all need twin-screw and multi screw coextrusion.

(3) If the order quantity of professional vest bag is large and stable, twin-screw ABA double die can be recommended (advantages: high output, good tension and good brightness of blown film.)

4. What is the difference between the up and down rotation of the film blowing machine?

(1) The upper rotation is 340 degrees and the lower rotation is 360 degrees

(2) The lower rotation is commonly used for single screw film blowing machine and the upper rotation is commonly used for multi-layer coextrusion film blowing machine with high requirements. The cost difference between the two is large.

5. What is the difference between inkjet printer and heat transfer?

(1) Inkjet printer: the font sprayed out is small and fine dots, and the font is not clear enough

(2) Heat transfer printing: good font effect, similar to the effect of gravure printing machine

6. Under what circumstances will the spring of the flat mouth machine break?

1： The spring is installed in the wrong way. The correct installation method is to rotate 7 turns in the opposite direction, and then rotate in the positive direction, so it is firm and not easy to break.

Second: improper operation, the plastic bag will break when it is wrapped around the spring.

Third: cots and cots will break if they are pressed too tightly.

7. Can the 2C thick film on the film blowing machine be ironed?

The focus of this problem is the thickness. If PE is blown, the edge ironing film can be ironed at 0.2C to 4C. If Po is blown, the edge can be ironed at 0.9 to 0.2C. What we need to know is the material and thickness. If it is too thick, the ironing edge is unstable, which will also lead to unstable ironing.

8. Where is the thickness of the film blowing machine adjusted?

Traction frequency conversion, host frequency conversion, die head, size of steam in membrane bubble.