The three-layer co extrusion blown film machine relies on the weight of the particles themselves to enter the screw from the hopper. When the particles come into contact with the inclined edge of the thread, the rotating inclined edge generates a thrust perpendicular to the plastic, pushing the plastic particles forward. During the pushing process, due to friction between the plastic and the screw, plastic and the machine barrel, as well as collision friction between particles.

The plastic particles are pushed forward, decelerated, and driven by an electromagnetic speed regulating motor (or a variable frequency ordinary motor can be used). The reducer is driven by a belt drive to rotate the screw in the barrel; The plastic particles melted in the hopper under external heating are filtered through a three-way filter and squeezed from the mold mouth. Due to its good barrier properties, freshness, moisture resistance, frost resistance, oxygen resistance, and oil resistance, film can be widely used in light and heavy packaging.

Such as various fresh fruits, meat products, Pickled vegetables, fresh milk, liquid drinks, medical supplies, etc. So the film blowing machines are divided into high-pressure film blowing machines and low-pressure film blowing machines based on the raw materials. Due to friction between plastic and screw, plastic and barrel, as well as collision and friction between particles, as well as gradual melting due to external heating of the barrel. The deceleration and driving motor are composed of an electromagnetic speed regulating motor (or a variable frequency ordinary motor can be used), which drives the reducer through belt transmission to rotate the screw in the machine barrel.

Correct usage method of three-layer co extrusion blown film machine

1. Check that the temperature control is intact, the heating appliances are intact, and pay attention to adjusting the heating temperature at each point in a timely manner within the specified range.

2. Check the traction speed and control the thickness of the film.

3. Observe and adjust the uniformity of the film thickness, and ensure that the bending diameter meets the standard.

4. Check the pressure of the air storage cylinder, it should not be too high, but there should be backup pressure.

5. Check and control the raw material ratio and mix evenly.

6. Check for impurities in the raw materials, especially by promptly using a magnet to check if the iron is mixed in.

7. Check the lubrication of the gearbox position and the lubricating oil of the air compressor cylinder.

8. Regularly check the temperature rise and mechanical transmission of each operating motor.

Features:

1. The machine head adopts a layered spiral core rod type that can rotate continuously 360 degrees.

2. The rapid screen changing device has a reasonable structure, is easy to replace the filter screen, and is reliable to use.

3. The unit is equipped with various functional components: length recording device, longitudinal cutting device, cooling water outlet, flattening roller, edge closing device, etc.

The three-layer co extrusion blown film machine solves problems such as film ruffles and winding heads, taking product quality to a new level. Upward rotation refers to a 180 degree back and forth rotation between the traction roller and the herringbone clamp, with the film running at a radius to eliminate the phenomenon of "bulging" caused by the thickness of the film bubble. The blowing mold head is always in a stationary state.