Operating Instructions for Film Blowing Machine-B

Film blowing machine Start up formally

(1) Charging. First, run the extruder at low speed, and add a small amount of material. When the plastic passes through the die in a melt solution state and is blown into a bubble tube, gradually increase the screw speed, and then add a small amount of material.

(2) Material extraction. Gather the melt solution passing through the machine head, lift it, and inject a small amount of air at the same time to prevent adhesion.

(3) Feed. The lifted tube bubble is fed into the upper traction roller through the wind ring and herringbone splint, and the tube bubble is pressed into a flat film through the traction roller, then cut according to the required size through the corona system, and finally sent to the coiler.

(4) Inflate. After feeding the tube bubble, air can be introduced into the tube bubble for blowing until the required range is reached, and the pressure in the tube bubble is kept constant.

(5) Adjust. The blown film shall be checked by the operator according to the quality requirements, and the unqualified items shall be properly adjusted. The tolerance of the film can be obtained by adjusting the lip clearance, the air volume of the cooling air ring and the traction speed. The tolerance of the film is mainly corrected by the size of the air blowing, and the qualified products are rolled into barrels or films.

(6) After the film is pulled, the film should be "deflated". The so-called deflation means that there should be no air between the two closely attached films. The method is to use the blade to rotate a suitable place on the top to puncture a small hole to let the air go. Repeat several times until the air is completely drained.

(7) After the above operations are completed, start the corona system and take samples to check the product uniformity and corona value.

(8) When everything is checked to be qualified, the coil can be changed into formal production, and the meter reader can be pressed to produce according to the production requirements.