Huayang Automatic Roll to Roll Paper CI Flexo Printing Machine

Printing Machine Structure

• • Feeding Unit
  • Splicing Unit
  • Paper Guide Unit
  • Printing Unit
  • Coating Unit
  • Drying Unit
  • Finished Product Guide Unit
  • Finished Product Receiving Unit
  • Control System and Operation Platform

Main Technical Specifications

Printing Material	Paper or paper-like materials Note: The length, width, and basis weight of the material must be compatible with the set tension
Printing Material Thickness	80～350g/m2
Printing Material Width	1720mm
Maximum Printing Width	1700mm
Number of Printing Units	6 Printing Units + 1 Coating Unit
Positioning Accuracy	± 0.1mm
Overprint Length	700-1400mm
Tension Adjustment Range	17～100kg (at maximum paper width)
Plate Thickness	1.7mm; 1.14mm
Double-sided Tape Thickness	0.38mm; 0.5mm Note: Direct adhesive method is used
Maximum Mechanical Speed	300m/min
Running Speed	250m/min, actual running speed depends on various factors: product size, ink, chemicals, printing area, and product quality
Paper Running Direction	Printing unit is located on the right side of the receiving unit (viewed from the operation side)
Ink Type	Water-based or solvent-based ink
Transmission Method	Servo-controlled transmission
Printing Command Control	Servo control
Power Supply	AC400V ±5%，50HZ
Maximum Roll Diameter	1500mm
Feeding Method	Automatic non-stop feeding
Drying Heating System	Electric heating system
Total Motor Power	175kw (typically used power is about 65%) Note: Excluding heating power
Maximum Noise	< 85dB
Recommended Operating Temperature	10-35ºC
Relative Humidity	30-80% (at 20ºC reference temperature)
Altitude	Up to 1000 meters
Compressed Air	Oil-free, dried, and moisture-filtered Pressure: 6bar Dew Point: 2ºC Airflow during roll change: 1500 liters/min Airflow during machine operation: 750 liters/min
Cooling Water	Filter: <20ｕ Pressure: Min 2bar, Max 3bar Cooling roller inlet water temperature (room temperature +20ºC): 15-18ºC Hardness (CaCO3): 2.5-4mg/L PH: 7-8.2
Machine Color	RAL9003 (White) + RAL7024 (Gray) Note: Only for main equipment produced by Huayang
Machine Dimensions (LxWxH)	Please refer to the machine layout drawing Note: Excluding the height of the exhaust pipe prepared by the customer

Machine Functions

Feeding Unit

• • Hydraulic shaftless paper holder for feeding, hydraulic arm automatically lifts and lowers the paper roll
  • Paper roll positioning device with multi-position pneumatic control
  • Tapered clamping method, equipped with Φ76 and Φ150 expansion chucks
  • Maximum roll diameter: 1500mm
  • Minimum roll width: 700mm
  • Maximum weight: 2800kg
  • Lateral paper adjustment via buttons

Splicing Unit

• • High-speed splicing unit with a 99% success rate
  • Pneumatically controlled splicing flip device, automatically cuts the tail after splicing
  • Maximum splicing width: 1720mm
  • Guide rollers controlled by PLC to ensure consistent tension during splicing, ensuring splicing success rate
  • Simple operation and easy maintenance
  • Equipped with safety devices to ensure operator safety
  • Zero-speed splicing: When the machine runs at high speed, tension remains stable, splicing speed is zero, ensuring better ink adhesion and increased roller pressure for secure splicing

Paper Guide Unit

• • Steel guide rollers combined with rubber pressure rollers, combining rigidity and flexibility
  • Tension detected by guide rollers and feedback signal provided via potentiometer
  • Steel rollers are power rollers, controlled by servo motors
  • When the main machine starts, the power rollers start simultaneously
  • Pressure roller pressure switch and adjustment controlled pneumatically, with cylinders at both ends
  • Equipped with dual-sided brush roller dust removal system

Printing Unit

• • Printing Unit Frame

+ Machine body made of high-strength alloy cast iron, low stress, double-treated to ensure stable operation at high speeds

+ All printing unit frames are made of high-strength alloy cast iron, low stress

+ Frame base is balanced

• • Central Impression Cylinder

+ Double-layer design, chrome-plated surface

+ Supported by high-precision imported bearings to ensure cylinder stability

+ Directly driven by torque motor, equipped with motor cooling system

+ Internal water circulation for temperature adjustment, ensuring stable cylinder surface temperature

+ Independent pneumatic brake control

• • Flexo Printing Cylinder

+ Sleeve-type design, rotation accuracy of 0.01mm

+ Flip-lock design supported by high-precision bearings

+ Each printing unit’s cylinder is independently driven by a servo motor

+ Printing circumference can be infinitely adjusted within the allowable range

• • Anilox Roller

+ High-precision CNC-machined ceramic anilox roller, dynamically balanced

+ During standby, the anilox roller rotates independently at low speed to prevent ink drying

+ Each printing unit’s anilox roller is independently driven by a servo motor

• • Printing and Ink Supply System

+ Each unit is equipped with a closed-chamber doctor blade, reducing solvent evaporation and maintaining ink adhesion and cleanliness

+ The doctor blade chamber is equipped with bidirectional blades, with the reverse blade for sealing and the forward blade for ink doctoring

+ Pneumatic pressure adjustment for the doctor blade, uniform pressure across the machine, adjustable via valves

+ Easy and quick blade replacement

+ Each unit is equipped with an ink pump and ink return pipe

+ Each unit is equipped with a stainless steel ink tray

+ Protective covers are installed between each unit

• • Mobile Printing Unit

+ Printing and anilox rollers are driven by high-precision ball screws for precise adjustment

+ Printing and anilox roller frames slide on high-precision linear guides

+ Pressure release for printing and anilox rollers is servo-driven, with quick on/off functionality

+ Each printing unit is independently controlled

+ Ball screws and linear guides are equipped with protective covers

• • Positioning Control

+ Equipped with servo-driven longitudinal positioning, maximum adjustment range: 01 revolution

+ Equipped with servo-driven lateral positioning, maximum adjustment range: ±10mm

• • Printing Control

+ Memory function, capable of storing up to 99 printing jobs

+ When the machine stops, the last position of the impression cylinder is automatically memorized, and the machine restarts from that position

+ Main control station equipped with controls for each printing unit, including operation screen and printing image inspection screen

+ Each unit is equipped with an impression cylinder removal button and independent positioning control button

+ Equipped with two remote controls for convenient printing operations

• • Pre-printing Positioning Unit

+ Equipped with pre-printing positioning device

+ Equipped with sleeve positioning function, pre-printing positioning achieved through phase adjustment

• • Inter-color Drying Unit

+ Equipped with drying units between adjacent printing units. Drying units feature nozzle-type exhaust ports and can reuse secondary air

+ Fans controlled by variable frequency motors, adjustable output power and air speed as needed

+ Electric heating

+ Exhaust air speed: 30m/s

• • Transmission and Lubrication System

+ Electronically driven, with central impression cylinder, printing rollers, anilox rollers, paper guide rollers, and paper output rollers all controlled by servo motors

+ Centralized lubrication system for printing roller, anilox roller, and central impression cylinder bearings

Coating Unit:

• • The coating unit is installed at the printing unit position, capable of positioning with the printing unit, with an accuracy of ±2mm
  • The coating unit is driven by a servo motor
  • The drying chamber of the coating unit is 4 meters long

Drying Unit:

• • Frame Structure

+ The frame structure is made of steel, connected by cross beams to ensure stability

+ Equipped with ladders and operation platforms for convenient threading and inspection of the top drying chamber

• • Top Drying Chamber

+ Drying chamber length: 6 meters

+ Insulated structure, top drying chamber cylinder activated

+ Electric heating

• • Centralized Drying System

+ Centralized heating system for drying BC, top drying chamber, and coating unit

+ Electric heating

+ Nozzle-type design, maximum air speed: 25m/s

+ Automatic temperature control, error ±2℃

Finished Product Guide Unit:

• • Steel guide rollers combined with rubber pressure rollers, combining rigidity and flexibility
  • Tension detected by guide rollers and feedback signal provided via potentiometer
  • Steel rollers are power rollers, controlled by servo motors
  • When the main machine starts, the power rollers start simultaneously
  • Pressure roller pressure switch and adjustment controlled pneumatically, with cylinders at both ends

Finished Product Receiving Unit:

• • Independent finished product receiving unit
  • Receiving shaft driven by vector frequency conversion motor
  • High-speed non-stop roll change
  • Guide roller tension detection system
  • High-precision potentiometer
  • Low-friction cylinder tension control, fast and accurate adjustment
  • Expansion receiving shaft diameter: 150mm
  • Maximum roll diameter: 1500mm

Main Control Panel:

• • Includes the following operations:

+ Operation commands: Start, Emergency Stop, Acceleration, Fan On/Off, Pressure Roller On/Off

+ Display screens: HMI operation screen, Static screen

• • Control system: B&R controller
  • Central impression cylinder driven by direct-drive servo motor
  • System connection: Topology connection for each transmission unit. Tension detected by potentiometer and feedback signal sent to the controller, which outputs signals to the motor driver for controlled operation
  • Electrical components: Main circuit breaker, AC contactor, relay, and buttons from Schneider
  • Static screen:

+ Equipped with a static screen. Cameras can inspect printing images on both left and right sides, with adjustable positioning and 1-12x zoom

+ High-resolution color screen

• • Pre-printing Positioning Control System
  • Safety Protection System:

+ The entire transmission area is equipped with safety guards

+ The machine is equipped with lighting, with 2 units on the printing unit, 1 unit each on the finished product guide unit, finished product receiving unit, and coating unit

+ Emergency stop buttons are installed on the exterior of the printing unit

+ Machine safety design complies with national standards

+ CE certified

Accessory Configuration:

PLC & Operation Screen	B&R
Servo Drive Control System	B&R
Tension Sensor	Mitsubishi
Guide Roller Tension System
Exhaust Valve	SMC
Potentiometer	SENTOP
Main Bearings	SKF or FAG
Temperature Controller	Honeywell
Linear Guides	HIWIN or ABBA
Circuit Breaker	Schneider
Relay	Schneider
Buttons	Schneider
Pneumatic Components	AIRTAC
Static Screen & Pre-printing Positioning Device	BST