Two-color gravure printing press

Main parameters

Printing group unit: 4 groups     

Flow direction	From right to left (operation surface)
Number of print colors	2 colors
Maximum material width	520mm
Maximum printing width	520mm
Maximum mechanical speed	120m/min
Printing speed	10-100m/min (roller diameter ≥Φ160mm)
Printing speed varies according to printing materials, layout, printing ink, printing process, and operator level
Printing plate diameter	Φ120mm~Φ300mm
Printing plate width	500mm
Registration accuracy	The vertical comprehensive color accuracy is about ±0.12mm
Impression force	200kg
The scraper moves	±5mm
Drying method	Electric heating (8kw) 2 colors
Main motor power	AC 5.5kw
Machine appearance	6000×1700×2400(mm)

 

Description of the main parts

Printing department (1 group)

structure    

● The mounting method is axle-free

● The imprint roller is an integral quick change structure, which can be quickly replaced

● The downcoming structure of the imprint roller is pneumatic, and it operates in concert with a guide roller to ensure that the material length changes generated by downcoming and rising are minimized, and the double-coated roller imprinting ensures uniform pressure.

● Manual adjustment of up and down lifting of ink tray

● The unit gear box is an oil-immersed sealed gear transmission box, with high-precision transmission gears

● Adjustment roller is a one-sided adjustment method

● The horizontal revising shield adopts a full-inclusive shield

Specification   

● Roller width                                                             

● Wheelbase Ground Height 670mm

● Imprint roller                                                                                                                             

● Maximum embossing force 200kg

● Scraper rushes                                                            

● Scraper pressure       10~100kg

 

Drying part (2 groups)

structure   

● Design of single-color group independent drying system, double drying channels

● Fully enclosed extended oven, single-group drying material length of printing group 500mm

● Top end restrained flat air nozzle

● The heat source is electric heating

● Sealed drying box, grouped, easy to wear and clean, circulating drying box,

● The air inlet and return air ducts are independent, and the exhaust exhaust duct interface is pre-installed

● Intelligent continuous constant temperature control

Specification  

● Oven temperature      ≤100C (room temperature is 80C)

● The length of the material in the box       500mm (2 sets)

● Wind speed          ≥20m/s

● Temperature control accuracy    ≤±30C

● Maximum air supply       1000m3/H (2 groups)

● Hot fan power 0.75kw/group (2 groups)

● Group independent fan, pass, pipe, front, contact printing surface

● Heating power 6kw/group (2 groups)

 

Rack and material handling section

structure    

● Cast iron wall panel for the entire machine position

● The guide roller in the oven adopts external bearing positioning to improve the flexibility of the heated state

● Combination modular design

● Steel trough support (cross beam)

Specification   

● Wall panel thickness 60mm

● Standard color group space    500mm

● Guide roller diameter  　　  Ф70mm    

● Guide roller length          550mm

Features    

● Guide roller dynamic balance detection, stable printing material transfer

● The guide roller is smoothly arranged to make the film run smoothly

● Surface hardening of guide rollers to improve wear resistance

 

Main transmission unit

structure   

● The main motor transmits power to each color through the main drive shaft, several elastic couplings and gear boxes, driving the plate roller to rotate and the scraper to move axially.

● Flexible connection to the gear box and each transmission shaft

● The separate base plate and speed reduction mechanism of the main motor

Specification    

● Main motor 5.5kw frequency converter motor

● Connecting shaft Connecting sleeve connection

Features    

● Frequency conversion control, lighting system

● Design universal fluorescent lights

● Supporting facilities: (user is responsible) Power supply: Three-phase and four-wire air switch: 380V  50HZ