Printing press line
Example: Satellite flexographic printing machine line for web material.
1. Printing material: BOPP, PET, PE, CPP, PA, paper.
2. Machine composition: mainly includes the following parts: unloading - cutting and receiving - unloading traction - correcting - pre-press traction - printing and drying between colors - centralized drying Cooling of take-up haul-off - take-up cutting and splicing - take-up.
3. Functional description: Unwinding high-speed non-stop splicing; Unwinding traction; Pre-printing deskew; Full servo system for printing; Pre-register function; Memory function for production menu; Automatic clutching function for start/stop; Automatic adjustment of pressure during speed up/down of printing; Closed squeegee fixed-quantity ink supply system; Temperature automatic control and centralized drying after printing; Post-printing cooling and haul-off function; High-speed non-stop splicing and changing function for rewinding; Realize surface or inside printing. Function; realize the printing function of surface printing or lining printing.
4. Foundation and grounding: the foundation is made from the reinforced concrete foundation plan provided by the user and the construction of pre-buried ground wire, grounding resistance ≤ 4Ω.
1Conditions of use of the Device
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2Main parameters and characteristics
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3Part Description
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4Main configuration list
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5Device Peripheral Configuration
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6Description of device safety precautions
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7Provision of technical documents
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8Declarations and user-specific requirements
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1. Installation altitude ≤ 1000m Surrounding ambient temperature 5 ~ 40 ℃ Control cabinet working environment temperature 10 ~ 40 ℃ Air humidity 50 ~ 70% ;
2. Installation power main power supply: three-phase five-wire system AC400V Maximum voltage fluctuation: -10/+10V Frequency: 50Hz (China)
3.Cooling water :
Cooling water pressure : Minimum 1.5bar, Maximum 2.5bar
Cooling water temperature: 20~25℃
Water filtration : Less than 20μ
Water hardness (CaCO3): 2.5~4mg/l
Water PH: 7~8.5 Temperature control unit: 1.5m³/h
Cooling roller: 1.3 m³/h
4. Compressed air Compressed air: oil-free.
Drying and filtration filtration particle size: less than 20μ
Air pressure: 0.7Mpa±0.1Mpa
Printing process compressed air consumption: about 200 Nl/min. (In the replacement of the sleeve when the amount rises to about 600 Nl/min.)
Freezing point: 2°C
1Unwinding and cutting section
1. Frame: independent disk-type double-station rotary frame and frame combination, high-speed, stable and reliable; disk 360 ° positive and negative two-way rotation;. Unwinding axis alone active unwinding form, servo motor drive;
2. Cutting knife: the discharge section with automatic cutting mechanism, without any mechanical changes can be realized up and down cutting
3. Driving and control: Unwinding shaft is driven by a separate servo motor with braking function and precise control;
The maximum diameter of material roll is 1000mm;
Maximum load capacity: 800Kg;
Material roll axial adjustment range: ±20mm
2.Unwinding and hauling
The wall plate is made of high performance alloy cast iron;
The traction roller is directly driven by servo motor;
Double rollers to roll type, the combination of steel and soft, soft roller clutch, pressure adjustment is completed by pneumatic components, soft roller clutch and host linkage, completed by the central controller;Pendulum roller type, non-contact tension detection system, closed-loop control ;Digital tension, man-machine interface setting, tension precision, intuitive display, easy to operate;
Precision sensor feedback tension signal, tension closed-loop control specifications;Diameter of traction roller:¢260mm;Diameter of traction roller :Φ125mm
3. Prepress traction section
The traction roller is pressed together with the center cylinder by pneumatic cylinders;
The clutch of the traction roller and the adjustment of pressure are completed by pneumatic components;
The clutch of the traction roller is linked with the main machine;The design of guiding device before hauling ensures the stable material walking;Diameter of traction roller: Φ150mm
4. Printing section
Printing unit consists of frame, center impression cylinder, plate roller, anilox roller, closed doctor blade.
1. Printing machine frame: printing wall plate for high-strength alloy cast iron, resin sand casting, multi-ageing treatment to completely eliminate stress, to ensure the rigidity of the frame and the stability of the printing department
2.Center Cylinder: The center cylinder is imported from Italy.3. Printing plate roller
Printing plate roller adopts cantilever beam support structure, double line precision roller bearing, high rotary accuracy, easy and quick replacement.
4. Anilox roller adopts cantilever beam support structure, double line precision roller bearings, high rotary accuracy, easy and quick replacement. The cantilever beam support adopts high precision double-guide portal structure, high repeat displacement accuracy.
5. Pressure adjustment: the pressure between the plate roller and the center impression cylinder, between the anilox roller and the plate roller is driven by two servo motors directly connected to each color, and the pressure adjustment is realized by precision ball screws and double linear guides, and there is a position memory function.6. Squeegee and ink supply system: Closed squeegee is equipped with quick replacement system.7. Color drying section: hot air drying form, continuous constant temperature control.
5. Centralized drying system.
Centralized drying adopts hot air drying form, continuous constant temperature control.
The fully enclosed oven adopts heat preservation structure, stainless steel inner liner, large wind speed and high flow rate, which can create low temperature and high wind speed drying mode.
6. Post-printing traction cooling section.
The wall plate is made of high performance alloy cast iron;
Post-printing traction roller is cooling water circulation structure;Clutching of flexible rollers, pressure adjustment is completed by pneumatic components, and the clutching of flexible rollers is linked with the host computer and completed by the central controller ;Pendulum roller type non-contact tension detection system, closed-loop control specifications ;Diameter of traction roller :Φ260mm; Diameter of rubber roller:Φ125mm
7.Receiving Department.
1. Frame: Independent disc type double station rotary frame and frame combination, high speed, stable and reliable.
2. Cutting knife: receiving section with automatic cutting mechanism, linear cutting form, can realize the upper and lower cutting With full-automatic cutting function, reduce manual participation; automatic detection of the diameter of the material roll, rotary frame turn over the precise positioning of the cutting pressure roller with a contact type of material collection function, the collection of the roll is neat and stable.3. Drive and control: the rewinding axis is driven by a separate servo motor with brake function, precise control.
8.Guide rollers.
All guide rollers are dynamically balanced, and the resistance of guide rollers has little effect on the film tension;Guide roller :Φ100mm,Φ120mm (surface oxidized).
High precision guide rollers, fixed on low friction bearings, guide rollers rotate flexibly, good synchronization.
9.Lighting system.
Illumination ≥300Lx
10. Air circuit system:
The air circuit adopts gas and electric correlation control, the gas and electricity are connected at the same time before the cylinder action can be executed, the operation is more secure.
Center impression cylinder: imported from Italy 1pc;
Center impression cylinder drive motor: original Siemens 1;
Tension control and electronic shaft control system: 1 imported;
Human-machine interface: imported 1;
Unwinding motor: servo motor 2;
Unwinding traction motor: imported 1pc;
Horizontal oven guide roller drive motors: 2 CDQC; winding traction motor: 1 imported; winding motor: 2 servo motors; plate roller drive motor (with synchronous servo control system): 1 imported/per color; anilox roller drive motor (with synchronous servo control system): 1 imported/per color; pressure adjustment drive motor (with synchronous servo control system): 4 imported/per color; plate roller lateral drive motor (with synchronous servo control system): 4 imported/per color; plate roller drive motor (with synchronous servo control system): 4 imported/per color; plate roller drive motor (with synchronous servo control system): 1 imported Motor (with synchronized motor control system): 1pc/color; Electro-pneumatic converter: 1pc from SMC; Low-friction cylinders: 3pcs from FUJIKURA;
Precision pressure reducing valve: SMC 2 pcs;
Temperature control meter: Yuyao 3 pcs;
Pneumatic main parts: AIRTAC several;
Center roller bearings: SKF 2 pcs;
Main bearings: NSK NTN KOYO several;
Closed scraper: Auclean 1 set per color; water heater: 1 domestic;
Deskewing device: 1 piece of TIMARCO;