About blown film machine, the process principle of dalian blown film machine manufacturer to know!

About blown film machine, the process principle of dalian blown film machine manufacturer to know!

Blown film machine is melted and blow into a plastic particles heating film.Film blowing machine and a lot of kinds, there is PE, POF, PVC and so on.Blow out the new particle is a new material, colour and lustre are, according to clean, good tensile bag.Blown film machine blown out of a special plastic wrap, using advanced technology, the resistance to put fruits and vegetables over a long period of time.The cling film is made from a kind of nylon semi transparent film packaging machine, the transparent film, good permeability, on the interlayer containing a certain amount of sand syrup, gently coated surfaces, it is a harmless film must ensure that the environmental protection, at the same time a strong water permeability, absorb the fruit and vegetable juice, purpose of preservation, the special raw material need film blowing machine has high traction and drawing ability, guarantee product toughness breathable membrane, food packaging are the largest film application field, blown film machine blown high-grade film can be used as a propaganda, commodity packaging to improve business value.

The process principle of

Will dry polyethylene particles added to the hopper, depend on the weight of the particles themselves from the hopper into the screw, when the aggregate after contact with thread oblique edge rotating slant edge face plastic produce and inclined faces the vertical edges of thrust, plastic particles move, goes on in the process, because the plastic and screw, plastic and barrel friction between the friction and collision between particles, but also gradually melt due to external heating cylinder.Molten plastic by head die out from the die and approved by the wind ring cooling, blowing the herringbone board, drawing roller, winding will finished film rolled into a cylinder.

The main structure

Is mainly composed of extruder, head, head, cooling device, stable foam frame, herringbone board, traction roller, winding device, etc.

extruder

, extruder is mainly composed of the screw, barrel feed hopper, slow down and drive motor, drive motor with electromagnetic speed regulating motor (also available frequency conversion motor), through the belt drive drive reducer made in machine barrel screw rotation movement;The hopper plastic particles in the case of external heating molten plastic by tee from die die extrusion

Electric control

General units are fitted with units operation counters, by the button according to the total power supply, open the main switch, motor, respectively through the toggle switch and control the fuselage and tee, mouth mold each knob electric heating, a key part of two sets of coil adopted thermocouple temperature measurement and automatic temperature control automatically, the normal production process, the temperature can be automatically controlled, to ensure stable and reliable production process.Film blowing machine and a lot of kinds, there is PE, POF, and so on.

Blow out the new particle is a new material, colour and lustre are, according to clean, good tensile bag.

Also somebody made from recycled plastic bags to the particle, the particle generally called the old material, made of particles is usually gray, usually to add pigment, when it made the bag made from bags to uneven color, brittle and break easily, the price is low.

Cooling device

By cooling wind ring, air ducts, air blower, etc

traction

By drawing frame, herringbone board, traction roll, mechanism and main components of traction motor

Die head

This unit and the use of advanced spiral die structure, according to the high pressure, low pressure, mixture and the particularity of polyethylene with uncooked materials, the comprehensive consideration, design the spiral Angle, Angle of TuiPo, finalize the design Angle of length, the gate opening, main technical parameters, such as the contrast test selection styling for many times,

Dalian blown film machineGroup of manufacturers think: although is recycling plastic bags are generally in the process of bag making waste bags and usually in the sense of waste plastics or there is a big difference.Film blowing machine production is membrane are suitable for all kinds of top grade film packaging.This film because of its good barrier property, keeping fresh, well protected against dampness, frost proof, oxygen insulation, oil resistant, can be widely used in light and heavy package.Such as all kinds of fresh fruit, meat, pickles, fresh milk, liquid beverage, medical supplies, etc.