Jiangyin Yuzhe Intl Trading Company

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HSY-600 Film Blowing and Printing Machine (ABA)

Introduction

According to the market requirement,our company researched HSY-600 film blowing and printing machine (ABA).This machine can blow and print at the same time, can blow and print the  co-extrusion film thickness from 0.015mm to 0.15mm LDPE.HDPE.LLDPE.

Widely used in food,clothing,garbage bags,vest bags and other consumer and industrial packaging.

The machine has the following features:

1、This machine was produced since 1984,the technology is very mature and 

advanced through more than 30 years’ constantly improve and perfect;

2、Extrusion system adopts two extruders and one three-layers co-extrusion die to blow

 plastic film, the surface and inside share an extruder, we call it A. The production of another extruder is the middle layer of the film, we call it B, so the blown film forms A, B, A three-layers co-extrusion film 

3、Wide application, several purposes ( It can blowing and printing at the same time, or single blowing and single printing);

4、Advanced structure, easy operation, correct overprint, easy maintenance;

5、Save raw materials, product quality is stable. It has the following features compared with the traditional process

A) Bright color, good fastness;

B) Blowing and printing at the same time. Correct overprint;

C) Easy maintenance, stable and reliable quality

Introduction

1.Screw barrel material: 38CrMoAl,surface with nitride with special mixed segment, good effect, high capacity .screw processing by the double material.

2.The barrel adopts ceramic heater, forced air ring adjust the temperature automatically, with a durable accurate and reliable performance.

3.45 forge steel,the mould inside and the die surface were deal with hard chrome and electronic polish treatment, ensure good quality film.

4.High strength hard tooth surface reduction gear box, has a large carrying capacity, low noise, long life, stable transmission, etc

5.Temperature Controlling System :Digital Intelligent Temperature Controlling System with solid state relay control

6.Extruder main motor: two 7.5kw Siemens motor     

7.Frequency conversion (five inverter control)

8.Intellectualized Digital Corona Treatment

9.2 colors printing, max 6 colors printing

10.Gravure installation size: length 620mm. φ75～180mm；

11.The width of blowing and printing :100~550mm

12.Friction type rewind, the max rewind diameter 600mm

15. About 50KW Five wire three-phase, voltage 380 v (±10% range), frequency 50 hz (±5% range);

18.Feeding→plastifying→extruding→blowing out and extensing→cooling and finalizing the design→traction→ corona treatment→ printing → Drying → traction →rewinding

Main Technical Parameters

Extrusion &Die &Air-Ring Device

Take-Up Device

Gravure Printing Device

Rewind Device

Optional Equipment

（PLC control）

1)Auto-loader Device

2)Rotary Die-Head

3)Double Rewind 

4)Air Compressor

5)High Speed Mechanics Screen Changer

Model HSY-600 is the whole set of flowing line equipment to produce the plastic pack bag. It consists of film blowing part and printing part.

(I) Film blowing parts

The technical flowing of film blowing parts is as following:

Feeding →plastifying→extruding→blowing out and extensing→cooling and finalizing the design→traction→coming into printing part

1.Material

The raw material is LDPE or HDPE.   

2.Feeding Process

Just the equipment start, should put litter material. Until the material is extruded, the machine head is normal and the condition of plastifying is good, then add large quantities of material.

3.Plastifying process

The raw material goes out from the extruder and it is heated through preheat section, plastifying section and extruding out measurement section, mixed by screw pole, the grain material is plastified into fused mass. 

4.The Extruding out process

The fused material output from the screw pole extruding out section makes the original swirl material becoming the advection through the filter screen in machine head. Then, the material comes into the spiral machine head and flows into the die opening, finally, it becomes the cylinder filming tube, extruded out. 

5.The processes of film-blowing, lengthways towing  

After the filming tube is drafted out, the size of film should be controlled well. The main processes are the blowing out and the lengthways drafting. 

Under the certain extruding machine rotating, the instant temperature and the changeless material discharging, the size (width of breadth ) is decided by the ratio of blowing out, which (the times of film’s transversed drafting ) is easily operated under 3 ~ 6 times. 

The thickness of film is decided by the lengthways drafting time, i.e. the ratio between drafting speed and the extruding speed, normally it is 3~7 times. If the drafting ration is too large, the film is easily broken out.

6.Cooling and finalizing the design

The design finalizing is mainly decided by cooling vane（air ring） and air pressure. Its function is to make the film tube extrude out from die opening and the plastics cooled according the designed shape and it is adjusted in fine. The more precision section shape and brightness surface. After the shaped, the material passes the drafting roll and comes into printing part.

(II) Printing part

The technical flowing is as follows,

traction roller→electronic friction machine→first overprint→dry→second overprint →the same speed roller traction rewind.

1.The electric compact machine to treat the film 

In this machine, the electronic friction machine is adopted to use the high frequency pulse high voltage, make the air bring ionization and the discharge phenomena. When the plastic film passes through the electric discharge space and bears the pulse arc stroke, the original smooth surface of film forms the pores which can be seen by the naked eye, so the printing fastness can be improved.

2.Printing speed adjustment

The motor is electrically moment motor, which uses 200~1200 rotates/min. The worm wheel and worm make the printing plate and roller rotating at the same speed (when the slowdown of the worm wheel and worm is large it can lock itself). Through the mechnism driving, the printing speed can be adjusted between 8~40 meter/min, at your optional.

3.Drying part

The oven drying is used between the front chromatography and the back chromatography to reach the ink drying quality. The time of ink drying effects directly the quality of products.

4. The lengthways and transverse adjustments of printing.

Because the plate shaft of machine is driven by guild adding straight gear, the transverse adjustment range of plate (Left and Right) is 50mm (adjusted by wheel), the lengthways (front and back) is adjusted by handwheel to raise or fall down, the chromatography adjustment can be finished, its large adjustment range is 400mm.

5. Printing roll, ink scraping and gravure processes       

When printing roll was rolled in the ink channel, the whole cylinder is painted with thicker ink, then you can use the machine scraper, the scraper removes the thicker ink in printing chart. So, some surface of roll becomes blank and the depressed part is filled fully with ink, then under the press roll pressure, the ink at the depressed part (pattern) is transferred and printed to the surface of film.

6.Rewinding part

This machine adopt double friction rewinders and cutting device. It could produce the single layer film and double layers rounded film according to clients’ requirements. It could double rewind in single layer or single rewind in two layers. The film should be rewinded smoothly.