F5 Servo Motor Flexo Printing Machine

F5 1600-6 Servo Motor Driven Carton Pre-printing Press

Application object: wrapping paper, paper bag, paper carton, milk bag, plastic flexible packaging, etc.

Paper used: coated paper, cardboard, light weight coated paper, kraft paper, paper plastic composite material, BOPP, PET, etc.

Main characteristics: full servo control; more stable printing effect; sleeves for plate cylinder and anilox roller to achieve rapid changeover of printed materials; turret-type unwinder and rewinder for automatic paper splicing to achieve high-speed stable and improve efficiency of the whole machine;

BRIFE INTRODUCTION

Parameters: DHF5 1600-6

Max unwinding diameter: 1524mm

Max rewinding diameter: 1524mm

Max paper width: 1620mm

Max printing width: 1600mm

Plate repeat printing length: 520-1900mm

Plate thickness+ tape thickness: 1.7mm+0.5mm

Printing substrate: Paper: 100-350 gsm / Thickness：0.1mm-0.4mm

Machine mechanical speed: 260m/min

Max printing speed: 240m/min

Dryer type: Hot air / Electric heating (standard) or steam heating (optional)

Ink: Water based ink or solvent ink

Machine layout:

The unwinding unit is on the left-hand side when the operator faces the machine

The left-hand side or the right-hand side can be choiced according to the workshop layout

Machine color: White with red (recommended) or blue

Non-stop Unwinder and Rewinder which improve work efficiency
Enclosed chamber inking system with Double-ink pump which more convenient and fast cleaning
Enclosed Drying system with high-pressure circulation hot air which can set the temperate It can greatly improve work efficiency.
Pre-registration system the paper does not move, to achieve plate registration pre-positioning, which can reduce the waste of materials in registration.
Inline printing quality inspection system(optional)

Intelligent control system：
With real-time detection and computer automatic comparison of print quality, real-time alarm and record function can avoid defects. Intelligent control system: order preservation function (printing rules store/one-key call, printing pressure store/one-key call, printing, tension store/one-key call, pre-registration, vertical and horizontal vision automatic registration system, high-speed operation pressure adaptive system, closed-loop tension control, other functions) , automatic stop when broken paper, automatic alarm deceleration and stop, automatic stop when order is completed, automatic count, multi-point speed regulation, self-check and fault recording function, remote diagnosis function, self-service equipment maintenance function and so on, the use of equipment to let you worry-free

Unwinding structure features

Unwinding unit 2 sets
Max unwinding diameter 1524 mm
Shaftless unwinding, the chuck has self-locking function when rotate
Equipped with 3 inch, 6 inch, 12 inch cylindrical step chuck, with chuck rotation self-locking device
Electric control arms around, move up and down, single arm around mobile convenient lifting paper rolls
Automatic paper connection speed is ≤ 150 meters/minute

Splicing system

Zero speed splicing. end-to-end splicing manner so that printing material thickness shall not be obviously increase
Vacuum suction, preset tape device which can realize two-side adhesion with tapes to ensure firm paper connection
With a new design, hob-type cutting device to achieve paper cutting
The paper cutting is specially designed to bevel to reduce the impact when the interface enters the printing

Unwinding structure features

Equipped with automatic tension control system, including pneumatic brake, tension sensor and controller, electronically controlled switching valve
The current roll diameter can be displayed in real time, and the alarm roll diameter value can be set. Once current roll diameter achieve setting diameter, system will give alarm.
with fault analysis and record function

Paper storage device

Equipped with paper storage device
Motor drive and electric eye detection for automatic storage
The fully closed loop control is adopted for the storage and tension control of the storage material so that the tension is stable
Multi-layer paper path design to reduce use area

Web guide system(Italy ST)

Installed before printing station
Inspection: the edge precision ±0.02mm
Electronic web guide traction device. If there is any excursion in paper feeding, the system will have a constant and accurate adjustment.
Single side sensor for manual and automatic control and adjustment

Web cleaning unit（British technology high pressure vortex）

Double static rod design, first remove static electricity, then vacuum dust, then remove static electricity, used for cleaning printing materials
Through high-pressure fan to form a vacuum, with dust brush, through the separation of flow guide slot, high-pressure eddy current is formed on the paper surface, which can remove the dust of printing material more effectively

Infeed tension control system

Infeed tension impression roller is servo motor control for high register accuracy
One set servo motor,
One set servo driver,
One high-precision planetary gearbox,
Use the double rubber roller to clutch and feed paper and to ensure the tension .

Structure and features(patented technology)

Unit type with 6 printing station
Machine wallboard is used of HT250 cast iron
With N- type 4 guide rail design which can eliminate the shock vibration caused by the printing plate discontinuity. With heavy-duty high-precision ball screw, the printing pressure adjustment precision of plate roller bottom roller can reach 0.002 mm (patent technology can not be copied)

Ink system（patented technology）

Inking system by enclosed chambered doctor blade system. The chamber is provided of inlet and outlet ports for the ink circulation. Side sealing system to close laterally the chamber
The closed chamber doctor blade adopts a chamber design, and the knife holder can be easily separated from the main body, and the replacement of the blade is faster and lighter. (Proprietary support mechanism to ensure that the blade does not vibrate at high speed)
There is a special pressure relief device in the chamber , which will not cause the blade to deform due to overpressure in the chamber
The contact pressure between the scraper and the anilox roller is guaranteed by air pressure, and the pressure is adjusted by air pressure, and the wear of the blade can also ensure that the pressure remains unchanged. (Precision pressure regulation system can improve the service life of the blade and reduce the cost of use)
Each color group contains an air pressure ink supply system, stainless steel ink barrel, equipped with double pumps, ink supply and cleaning scraper holder, ink pipe and mesh roller are more convenient and fast, can be combined with automatic cleaning system
A stainless-steel ink tray, located under each printing unit, collects ink surplus during working and cleaning operations. The trays are mounted on quick release supports to facilitate replacement.
Coating on the inner surface of the ink chamber doctor blade system is easy for cleaning
Automatic ink supply device with magnetic filter function shall effectively extend the life of the anilox roller
Automatic cleaning system.

Anilox roller and plate cylinder auto positioning system

The plate cylinder and anilox roller automatically adjust the position according to the repeat length. The position adjustment is performed by a high-precision ball screw and four servo motors, and the plate roller and the anilox roller are respectively controlled by two servo motors.
The plate cylinders and anilox rollers of all selected printing stations are positioned at the same time
Positioning is completed automatically, which is easy and convenient

Printing station

Each printing station is driven by servo motor, the main motor is German servo motor and drive system
Each printing station has 6 servo motors

Anilox roller

Laser engraved ceramic anilox roller
There are ink splash guards on both sides.
The anilox roll will rotate to prevent the ink on its surface from drying and blocking holes on it when the machine stopped
The anilox roller and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
6 High-precision anilox rollers (LPI decided by customer)
High-speed pressure adaptive system

Plate cylinder

Aluminum alloy-made plate cylinder
On the machine operation and non-operation side, the plate cylinder and the support structure are stably supported by four upper and lower linear guide
The plate cylinder and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
Servo motor controls lateral movement of plate cylinders
Printing cylinder 6 pieces
High-speed pressure adaptive system

Printing adjustment and setting

Automatic registration in the paper-feeding direction and accurate registration with servo motor in the horizontal direction.
Register adjustment in the paper feeding direction can be adjusted at the printing unit and the main control console.
The paper feed direction registration is adjusted by plate cylinder servo motor phase compensation, 360° adjustment. This operation is completed when the machine is registered
Horizontal registration adjustment is realized at the printing unit and the main control console.
Horizontal registration is realized by moving plate cylinder, and the maximum adjustment distance is +10mm.
Printing pressure adjustment is precisely controlled by the ball screw and the servo motor with an accuracy of 0.002mm.
When the machine is stopped, the anilox roller pressure is immediately released, and the supply of ink to the plate cylinder is stopped. The plate cylinder continues to run for a specified period of time and then depressurizes to ensure complete transfer of residual ink on the plate.
The pressure is controlled by four servo motors of the printing station. The system ensures precise positioning of the printing station.
Simultaneous pressure on and off can be achieved.
Having pressure memory storage function, once adjusted, the pressure is directly in place for the same product
Dynamic adjustment for pressure, especially at high speed, automatically compensate the pressure and reduce waste due to pressure problem

Unwinding structure features

Unwinding unit 2 sets
Max unwinding diameter 1524 mm
Shaftless unwinding, the chuck has self-locking function when rotate
Equipped with 3 inch, 6 inch, 12 inch cylindrical step chuck, with chuck rotation self-locking device
Electric control arms around, move up and down, single arm around mobile convenient lifting paper rolls
Automatic paper connection speed is ≤ 150 meters/minute

Splicing system

Zero speed splicing. end-to-end splicing manner so that printing material thickness shall not be obviously increase
Vacuum suction, preset tape device which can realize two-side adhesion with tapes to ensure firm paper connection
With a new design, hob-type cutting device to achieve paper cutting
The paper cutting is specially designed to bevel to reduce the impact when the interface enters the printing

Unwinder control

Equipped with automatic tension control system, including pneumatic brake, tension sensor and controller, electronically controlled switching valve
The current roll diameter can be displayed in real time, and the alarm roll diameter value can be set. Once current roll diameter achieve setting diameter, system will give alarm.
with fault analysis and record function

Paper storage device

Equipped with paper storage device
Motor drive and electric eye detection for automatic storage
The fully closed loop control is adopted for the storage and tension control of the storage material so that the tension is stable
Multi-layer paper path design to reduce use area

Web guide system(Italy ST)

Installed before printing station
Inspection: the edge precision ±0.02mm
Electronic web guide traction device. If there is any excursion in paper feeding, the system will have a constant and accurate adjustment.
Single side sensor for manual and automatic control and adjustment

Web cleaning unit（British technology high pressure vortex）

Double static rod design, first remove static electricity, then vacuum dust, then remove static electricity, used for cleaning printing materials
Through high-pressure fan to form a vacuum, with dust brush, through the separation of flow guide slot, high-pressure eddy current is formed on the paper surface, which can remove the dust of printing material more effectively

Infeed tension control system

Infeed tension impression roller is servo motor control for high register accuracy
One set servo motor,
One set servo driver,
One high-precision planetary gearbox,
Use the double rubber roller to clutch and feed paper and to ensure the tension .

Structure and features(patented technology)

Unit type with 6 printing station
Machine wallboard is used of HT250 cast iron
With N- type 4 guide rail design which can eliminate the shock vibration caused by the printing plate discontinuity. With heavy-duty high-precision ball screw, the printing pressure adjustment precision of plate roller bottom roller can reach 0.002 mm (patent technology can not be copied)

Ink system（patented technology）

Inking system by enclosed chambered doctor blade system. The chamber is provided of inlet and outlet ports for the ink circulation. Side sealing system to close laterally the chamber
The closed chamber doctor blade adopts a chamber design, and the knife holder can be easily separated from the main body, and the replacement of the blade is faster and lighter. (Proprietary support mechanism to ensure that the blade does not vibrate at high speed)
There is a special pressure relief device in the chamber , which will not cause the blade to deform due to overpressure in the chamber
The contact pressure between the scraper and the anilox roller is guaranteed by air pressure, and the pressure is adjusted by air pressure, and the wear of the blade can also ensure that the pressure remains unchanged. (Precision pressure regulation system can improve the service life of the blade and reduce the cost of use)
Each color group contains an air pressure ink supply system, stainless steel ink barrel, equipped with double pumps, ink supply and cleaning scraper holder, ink pipe and mesh roller are more convenient and fast, can be combined with automatic cleaning system
A stainless-steel ink tray, located under each printing unit, collects ink surplus during working and cleaning operations. The trays are mounted on quick release supports to facilitate replacement.
Coating on the inner surface of the ink chamber doctor blade system is easy for cleaning
Automatic ink supply device with magnetic filter function shall effectively extend the life of the anilox roller
Automatic cleaning system.

Anilox roller and plate cylinder auto positioning system

The plate cylinder and anilox roller automatically adjust the position according to the repeat length. The position adjustment is performed by a high-precision ball screw and four servo motors, and the plate roller and the anilox roller are respectively controlled by two servo motors.
The plate cylinders and anilox rollers of all selected printing stations are positioned at the same time
Positioning is completed automatically, which is easy and convenient

Pre-register control (patented technology)

The paper does not move, and after the plate roller is installed, the printing plate is pre-registered
The pre-registration system is used to minimize print registration errors prior to formal printing. The system guarantees a quick start of the machine and reduces material waste.
The pre-registration action is automatically completed during the positioning process of the plate cylinders

Visual registration (patented technology）

Printing station

Each printing station is driven by servo motor, the main motor is German servo motor and drive system
Each printing station has 6 servo motors

Anilox roller

Laser engraved ceramic anilox roller
There are ink splash guards on both sides.
The anilox roll will rotate to prevent the ink on its surface from drying and blocking holes on it when the machine stopped
The anilox roller and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
6 High-precision anilox rollers (LPI decided by customer)
High-speed pressure adaptive system

Plate cylinder

Aluminum alloy-made plate cylinder
On the machine operation and non-operation side, the plate cylinder and the support structure are stably supported by four upper and lower linear guide
The plate cylinder and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
Servo motor controls lateral movement of plate cylinders
Printing cylinder 6 pieces
High-speed pressure adaptive system

Printing adjustment and setting

Automatic registration in the paper-feeding direction and accurate registration with servo motor in the horizontal direction.
Register adjustment in the paper feeding direction can be adjusted at the printing unit and the main control console.
The paper feed direction registration is adjusted by plate cylinder servo motor phase compensation, 360° adjustment. This operation is completed when the machine is registered
Horizontal registration adjustment is realized at the printing unit and the main control console.
Horizontal registration is realized by moving plate cylinder, and the maximum adjustment distance is +10mm.
Printing pressure adjustment is precisely controlled by the ball screw and the servo motor with an accuracy of 0.002mm.
When the machine is stopped, the anilox roller pressure is immediately released, and the supply of ink to the plate cylinder is stopped. The plate cylinder continues to run for a specified period of time and then depressurizes to ensure complete transfer of residual ink on the plate.
The pressure is controlled by four servo motors of the printing station. The system ensures precise positioning of the printing station.
Simultaneous pressure on and off can be achieved.
Having pressure memory storage function, once adjusted, the pressure is directly in place for the same product
Dynamic adjustment for pressure, especially at high speed, automatically compensate the pressure and reduce waste due to pressure problem

Visual registration system independently developed by DongHang
From the second printing section, each section is equipped with a camera and an industrial computer
The registration of each section with the reference color can be corrected and adjusted in real time at the current section, which can shorten the registration time to the shortest and reduce paper waste
It’s equivalent to install a small image inspection for each printing section. When manual correction is performed, the correction result can be seen immediately without waiting for the pattern to arrive at the final image inspection, which greatly saves paper.
1.5mm dot registration mark is enough, the mark can be placed in the blank of the pattern or in the shock-absorbing strip, without occupying space separately, and greatly reducing the waste of paper edges

Structure and features

Printing parts and drying parts are of separated design to avoid drying radiation on the printing side
Extended hot air drying box
The infrared power of each process color group automatically adjusts with the printing speed
Temperature setting control
The air volume of each station can be individually adjusted, which is precisely controlled for different printed images.
The drying fan, heating unit and piping system are connected to the whole machine and installed outside the equipment.
Temperature control for each station can be realized to better to adapt to different printing materials and reduce the energy loss of the whole machine.
Piping on drying system has insulation layer to effectively reduce energy loss

Outfeed tension control unit

Tension impression cylinder is driven by servo motor to control the outfeed tension and ensure stable tension
Tension control uses floating roller structure
One servo motor with one servo motor drive
One high-precision gearbox
Use the double rubber roller to clutch and feed paper and to ensure the tension

Inline quality inspection system（options）

In-line printing inspection has 100% full inspection of printing, sound and light alarm after defects found, and display and record defect-related information. The operator may make the corresponding adjustment to the printing machine after the alarm, avoids the flaw to appear continuously, reduces the raw material waste.
Defect types: Streak, dirty spot, ink/white spot, missing print, mis-registration, color variation, foreign objects, splash, insects etc.
(patented technology）

Drying box (patented technology）

Each steel drying box for each printing station adopts air blade design, high air speed ensures drying quality
The hot air direction of the drying box is perpendicular to the paper feeding direction, with an exhaust duct for air recovery.
One fan is used to supply hot air and the other is used to exhaust air.
Distribute hot air to each printing unit through a piping system. Each drying box has gas volume adjustment.

Heating source

The heating source is heated by electric/combustion natural gas/steam/gasoline and can be started remotely. The heating temperature can be set and the heating will be automatically turned on or off according to the set temperature. The maximum temperature increase value is 80°C. （Electric heating is standard, other options are available）

Printing Monitor(Image inspection system )

Image inspecting camera can take pictures synchronously for the printing materials
Preset the inspecting position horizontally and vertically
It can magnify and observe the image with a fixed position to guarantee the printing quality.
High-definition resolution camera
High-definition color image monitor
One high speed paparazzi flashing light

Unwinding structure features

Unwinding unit 2 sets
Max unwinding diameter 1524 mm
Shaftless unwinding, the chuck has self-locking function when rotate
Equipped with 3 inch, 6 inch, 12 inch cylindrical step chuck, with chuck rotation self-locking device
Electric control arms around, move up and down, single arm around mobile convenient lifting paper rolls
Automatic paper connection speed is ≤ 150 meters/minute

Splicing system

Zero speed splicing. end-to-end splicing manner so that printing material thickness shall not be obviously increase
Vacuum suction, preset tape device which can realize two-side adhesion with tapes to ensure firm paper connection
With a new design, hob-type cutting device to achieve paper cutting
The paper cutting is specially designed to bevel to reduce the impact when the interface enters the printing

Unwinding structure features

Equipped with automatic tension control system, including pneumatic brake, tension sensor and controller, electronically controlled switching valve
The current roll diameter can be displayed in real time, and the alarm roll diameter value can be set. Once current roll diameter achieve setting diameter, system will give alarm.
with fault analysis and record function

Paper storage device

Equipped with paper storage device
Motor drive and electric eye detection for automatic storage
The fully closed loop control is adopted for the storage and tension control of the storage material so that the tension is stable
Multi-layer paper path design to reduce use area

Non-stop rewinder

Using surface drive rewinding
Maximum rewinding diameter 1524mm
Minimum rewinding diameter 700mm
Two 3-inch air shafts
Note: when rewinding, the printed side i·s outside

Splicing system

During nonstop roll change, the cable cutting device is used, paper roll change is realized without manual intervention.
Before the automatic paper splicing, air shaft should be placed on the support arm in advance when the equipment is in normal operation.
After receiving the change order, the pneumatic pressure arm will press down the preset air shaft, and the old paper roll will be cut off, and the new roll will be wound onto the air shaft.

Rewinding control

The rewinding is controlled by the motor, the motor is driven independently for constant tension control with servo motor driver. The tightness of the paper can be automatically controlled easily by setting the tension value without manual intervention
Preset the number of rewinding meters. When it reaches the set value, the roll change process is started.
Tension control is controlled by floating roller, air cylinder and sensor
High-precision air cylinder controls robot arm on both ends to achieve automatic switching of air shafts
High-precision air cylinder controls robot arm on both ends so that the air shafts automatically get close to driving roller to winding the roll.
Machine automatically stops when paper breaks

Roll unloading

Electrically controlled hydraulic system for lifting and loading of roll

Intelligent operation

Recipe management, through recipe restoration: rewinding volume setting, pre-registration, drying temperature of each color group, printing pressure of each color group, station setting, etc., further increase work repeatability, reduce waste, improve efficiency
Key station status detection, such as rewinding and unwinding, dust removal, status of each color group, etc. When these stations are not turned on or faulty, an alarm message is given to prevent waste caused by mis-operation.
Monitoring of the whole machine status, real-time monitoring and displaying the working status of each station in graphical/text mode
According to the ergonomically designed main console, each station unit is equipped with a separate small console for easy operation in all areas.
New auto register system (lateral and longitudinal) with video camera on each print station (excl. first station)
Pre-registration function
Automatic fault detection
Remote assistance system via internet
The fault record is stored in the system to facilitate the statistics of the frequency of fault occurrence and effective prevention. It is convenient for maintenance personnel to check the fault occurrence process and facilitate the rapid and effective diagnosis of faults.
Self-service equipment maintenance function:
The equipment operation screen is marked with weekly maintenance, monthly maintenance, quarterly maintenance, and annual maintenance; The system automatically reminds you and can only turn on the system after confirmation

Power requirement

Power：380V 50Hz 3PH
Max power ：353kw(main engine 200kw，hot air dryer 81 kw，IR：72kw）
Actual power usage is 50-60%
Compressed air ：0.6MPa Without air compressor
Compressed air consumption：2m³/min

Environment requirements for workshop

Relative humidity： 40 -60% (at 20°C).
Temperature： 15°C – 35°C.
Altitude： Less than 2000 meters

Auxiliary equipment

One set Ultrasonic anilox roller cleaning machine
One set plate mounting machine
One set crane

Surface treatment

The machine has excellent surface treatment technology. All parts and enclosures are finished with surface treatments such as cleaning, rust prevention and epoxy spraying

Instruction and service

The machine is supplied complete with all necessary instruction manuals including installation, operation and routine maintenance, electrical, gas and hydraulic drawings. Users must strictly follow the instructions in these documents. If the user does not operate the equipment in accordance with the instructions, the manufacturer shall not be responsible for any result. If the machine is abnormal, the user shall immediately notify the manufacturer in writing, otherwise the user shall bear the result by himself.

Tool kit

The machine is supplied with one (1) set of tools necessary for the ordinary maintenance. Additional tools and equipment for extraordinary repairs, are full responsibility of the buyer/user.

Equipment list

6 printing unit with enclosed chamber doctor blade ink system
6 pcs ceramic anilox rollers
6 pcs printing plate cylinders
Drying system
2 air shafts
Pre- register system
Auto register system
Image inspection system
Inline quality inspection system
Web guide system

The following parts and services are not provided

Exhauster pipe
Air compressor and pneumatic device connected to the gas pipe
Air compressors and containers, pressure air handling devices and related accessories
Connect the external cables and wires of the machine
Fire protection system.
Any form of civil engineering.
All kinds of oils
foundation
Adiabatic sound insulation device
solvent volatilization disposal and recycling
Others not listed.

Accessory parts

The paper feeding roller is made of aluminum alloy. Assembled on high precision movable bearings, and with dynamic, static balance
All parts are in need of lubrication with lubricating hole (grease is provided by the customer)

Electrical control cabinet

All electrical controls are safely installed in the electrical control cabinet. The main power supply is installed in a separate control cabinet.
Electrical communication system adopts the ring topology structure design, increasing communications lines redundancy and 50% less likely than traditional design communication interrupt.
Note: If the user safety regulations and local manufacturers use different rules, the user must provide a full range of specifications. And bear the cost of machine renovation that may be generated. The machine modification may extend the delivery time

Wearing parts

6 pcs IR Lamp
2 pcs single direction bearing
12 pcs Ink blocking sponge
1 roll Foil roll tape1
2 pcs Electric relay
10 meters Air tube
10pcs Gas connection
Note: Donghang is qualified to adjust the type and quantity of wearing parts independently according to the actual needs of different equipment

Remarks

Weifang Donghang Graphic Technology Co., Ltd. is qualified to make necessary design modifications without affecting the performance of the machine.

Web guide system(Italy ST)

Installed before printing station
Inspection: the edge precision ±0.02mm
Electronic web guide traction device. If there is any excursion in paper feeding, the system will have a constant and accurate adjustment.
Single side sensor for manual and automatic control and adjustment

Web cleaning unit（British technology high pressure vortex）

Double static rod design, first remove static electricity, then vacuum dust, then remove static electricity, used for cleaning printing materials
Through high-pressure fan to form a vacuum, with dust brush, through the separation of flow guide slot, high-pressure eddy current is formed on the paper surface, which can remove the dust of printing material more effectively

Infeed tension control system

Infeed tension impression roller is servo motor control for high register accuracy
One set servo motor,
One set servo driver,
One high-precision planetary gearbox,
Use the double rubber roller to clutch and feed paper and to ensure the tension .

Structure and features(patented technology)

Unit type with 6 printing station
Machine wallboard is used of HT250 cast iron
With N- type 4 guide rail design which can eliminate the shock vibration caused by the printing plate discontinuity. With heavy-duty high-precision ball screw, the printing pressure adjustment precision of plate roller bottom roller can reach 0.002 mm (patent technology can not be copied)

Ink system（patented technology）

Inking system by enclosed chambered doctor blade system. The chamber is provided of inlet and outlet ports for the ink circulation. Side sealing system to close laterally the chamber
The closed chamber doctor blade adopts a chamber design, and the knife holder can be easily separated from the main body, and the replacement of the blade is faster and lighter. (Proprietary support mechanism to ensure that the blade does not vibrate at high speed)
There is a special pressure relief device in the chamber , which will not cause the blade to deform due to overpressure in the chamber
The contact pressure between the scraper and the anilox roller is guaranteed by air pressure, and the pressure is adjusted by air pressure, and the wear of the blade can also ensure that the pressure remains unchanged. (Precision pressure regulation system can improve the service life of the blade and reduce the cost of use)
Each color group contains an air pressure ink supply system, stainless steel ink barrel, equipped with double pumps, ink supply and cleaning scraper holder, ink pipe and mesh roller are more convenient and fast, can be combined with automatic cleaning system
A stainless-steel ink tray, located under each printing unit, collects ink surplus during working and cleaning operations. The trays are mounted on quick release supports to facilitate replacement.
Coating on the inner surface of the ink chamber doctor blade system is easy for cleaning
Automatic ink supply device with magnetic filter function shall effectively extend the life of the anilox roller
Automatic cleaning system.

Anilox roller and plate cylinder auto positioning system

The plate cylinder and anilox roller automatically adjust the position according to the repeat length. The position adjustment is performed by a high-precision ball screw and four servo motors, and the plate roller and the anilox roller are respectively controlled by two servo motors.
The plate cylinders and anilox rollers of all selected printing stations are positioned at the same time
Positioning is completed automatically, which is easy and convenient

Printing station

Each printing station is driven by servo motor, the main motor is German servo motor and drive system
Each printing station has 6 servo motors

Anilox roller

Laser engraved ceramic anilox roller
There are ink splash guards on both sides.
The anilox roll will rotate to prevent the ink on its surface from drying and blocking holes on it when the machine stopped
The anilox roller and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
6 High-precision anilox rollers (LPI decided by customer)
High-speed pressure adaptive system

Plate cylinder

Aluminum alloy-made plate cylinder
On the machine operation and non-operation side, the plate cylinder and the support structure are stably supported by four upper and lower linear guide
The plate cylinder and support device are installed on the linear guide rail, and the printing pressure is adjusted by the servo motor driven the high-precision ball screw with an accuracy of 0.002mm
Servo motor controls lateral movement of plate cylinders
Printing cylinder 6 pieces
High-speed pressure adaptive system

Printing adjustment and setting

Automatic registration in the paper-feeding direction and accurate registration with servo motor in the horizontal direction.
Register adjustment in the paper feeding direction can be adjusted at the printing unit and the main control console.
The paper feed direction registration is adjusted by plate cylinder servo motor phase compensation, 360° adjustment. This operation is completed when the machine is registered
Horizontal registration adjustment is realized at the printing unit and the main control console.
Horizontal registration is realized by moving plate cylinder, and the maximum adjustment distance is +10mm.
Printing pressure adjustment is precisely controlled by the ball screw and the servo motor with an accuracy of 0.002mm.
When the machine is stopped, the anilox roller pressure is immediately released, and the supply of ink to the plate cylinder is stopped. The plate cylinder continues to run for a specified period of time and then depressurizes to ensure complete transfer of residual ink on the plate.
The pressure is controlled by four servo motors of the printing station. The system ensures precise positioning of the printing station.
Simultaneous pressure on and off can be achieved.
Having pressure memory storage function, once adjusted, the pressure is directly in place for the same product
Dynamic adjustment for pressure, especially at high speed, automatically compensate the pressure and reduce waste due to pressure problem

BRIFE INTRODUCTION

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