High-Speed Rotogravure Printing Press

High-Speed Rotogravure PrintingPress

Features of High-Speed Rotogravure Printing Press :

This automaticcomputerized high-speed chromatographic topping gravure printer is developed byour researchers. Equipped with non-axial pneumatic ceiling, seven units ofmotor tension controlling system, Panasonic PLC controller and protectionsystem, this printing machine is reasonable in design, easy to operate, fast toprint, accurate in color topping, economical of material consumption and so on.And also some key parts and components of the controlling unit adopt theprofessional elements and appliances of imported brands, rendering andtherefore the equipment is of high reliability and stability. It is widely usedfor continuous multi-color printing on reel-shaped film materials.

Major Properties of High-Speed Rotogravure PrintingPress:

Printing Stock of High-Speed RotogravurePrinting Press :

Technical Parameters and Structure of High-Speed Rotogravure PrintingPress :
Next is the detailed parameter and structure information of the high-speedrotogravure printing press according to the different sections.

1. Unwinding Section Structure of the Unwinding Section:

1. Independent turret type double-arm & double-position reversing frame andwall plate machine stand assembly.
2. Separated active unwinding form of the double-unwinding-reel.
3. Independent driving and controlling system with the imported all-digital ACfrequency converter system.
4. Closed loop control of tension can produce zero tension control and stableoutput no matter at low or high speed.
5. The detection of tension of the vibrating roller will take part in theclosed-loop-control, and the feedback signals will be given by the linearpotentiometer.
6. Re-winder with shaft-less pneumatic cylinder-fit.
7. Auto reel exchange at any speed can be guaranteed, surface inspection andauto cutting device.
8. Motorized returning to delivery position is automatically positioned.

Technical Parameters of the Unwinding Section:

2. Preheat section Structure of the Preheat section:
1. Independent dying system for single color group
2. Intelligent continuous thermostatic controlling system
3. Full-closed dryer, whose supplying heat canbe re-circulated for reuse.
4. Spray nozzles are of flat-mouthed and long air nozzles.
Technical Parameters of the Preheat section:

3. Feeding Traction: Structure of the Feeding Traction:
1. Counter-rolling double-roller, strong and weak tension combined to guaranteedivision of tension sections
2. Steel rollers are of braking rollers, driven by separated motors.
3. The steel roller power is provided and performed by the imported all-digitalAC frequency conversion controlling system.
4. The clutching of a flexible roller and the pressure regulation are performedby pneumatic elements.
5. Tension detection system and Dancer stabilizing system
6. High-sensitivity closed-loop-controlling system of tension
7. The tension detection of vibrating roller will take part inclosed-loop-controlling system.

Technical Parameters of the Feeding Traction:

4. Printing Section: Structure of the Printing Section:
1.The horizontal installation dimension is guaranteed at a uniform initialposition of the printing roller through the non-axial plating.
2. It is easy to replace press roller since its straight-through shaft type.
3. The pressing structure under the impression roller is of swinging arm typeacting coordinately with a guide roller to ensure a shortest material lengtharisen from pressing/rising.
4. When impression rollers compresses, they act in sequence order, and as theystop, they clutch simultaneously.
5. The skimmer unit is of pneumatic pressurization, clutching-type, andthree-dimensional adjustment structure.
6. The skimmer play is of double-shaft play, the frequency of which isproportionate with the rotation of the main motor.
7. Ink box is of open self-backflow kind, and it can be adjusted up and downmanually.
8. The compensation roller is of up-and-down floating type and controlled by aprecise ball-screw-rod.
9. The motivating gearbox and pneumatic pressurization unit are designed incombination, and the gearbox is of sealing type oil dip gear driving mechanism.

Technical Parameters of the Printing Section:

5. Drying section: Structure of the Drying Section:
1.Independent dying system for single color group
2. Intelligent continuous thermostatic control system
3. Full-closed dryer, whose supplying heat canbe re-circulated for reuse.
4. Spray nozzles are of flat-mouthed and long air nozzles.
5. Heat supply is available from steam heat or electrical heat optionally.
6. Swinging-arm opening or closing of the dryer box.
Technical Parameters of the Drying Section:

Technical Parameters of the Cooling Section:

6. Cooling Section Structure of the Cooling Section:
1. Water cooled roller
2. Cooling water circulates inside the entire roller to implement forcedcooling.
3. Backflow of water is of self flowing-back from the overflow
4. High-polish surface treatment


Technical Parameters of the Discharge Traction:

7. Discharge Traction: Structure of the DischargeTraction:
1. Double-roller is of counter rolling type and also weak and strong combined
2. Steel rollers are of motivating rollers and driven by separated motors.
3. The power of the steel roller axial is provided by the imported all-digitalAC frequency conversion control system.
4. The clutching of a flexible roller and the pressure regulation are performedby pneumatic elements.
5. Tension detection system and Dancer stabilizing system
6. High-sensitivity closed-loop-control system of tension
7. The detection of tension of the vibrating roller will take part inthe closed—loop-control, and the feedback signals will be given by the linearpotentiometer.
8. Winding Section: Structure of the Winding Section:
1. Independent turret type double-arm & double-position reversing frame andwall-plate machine stand assembly.
2. Separated motor driving of the double winding shaft, active form of winding
3. Independent driving adopts the imported all-digital AC frequency convertersystem.
4. Tension detection system and Dancer stabilizing system
5. Closed-loop-control of tension
6. The detection of tension of the vibrating roller will take part inthe closed-loop-control, and the feedback signals will be given by the linearpotentiometer.
7. Un-winder with shaft-less pneumatic cylinder-fit.
8. Motorized turning-around to the delivery position is automaticallypositioned.
9. Winding Section: Technical Parameters of the Winding Section:

10. Machine Stand and Material Conveying Section: Structure of the MachineStand and Material Conveying Section:
Integral cast alloy wall-plates with high strength for tension
Guide roller installation with double-shaft pushing against the core
Combined module
Technical Parameters of the Machine Stand and Material Conveying Section:

11. Main Drive System:
Driven by main driving motor, straight-through shaft transferring of power toevery machine unit is designed.
Connections to the gearbox and every other connection are of flexibleconnection.
Separate foundation plates and reduction gears for main motors are provided.
Structure of the Main Drive System:

12. Tension Control:
Four sections of closed–loop-control of tension on the entire machine
Tension detection mechanism is for floating rollers and equipped with importedlow-friction cylinder and precise relief valve.
Seven AC closed-loop vector motors, high accuracy of tension controlling, smallvariation of tension with rising or dropping speed Imported PLC controllingsystem is with strong capability of anti-interference, better systemreliability and stability
17. Attached with the Machine

Major Configuration List of High-SpeedRotogravure Printing Press :

Note:
There are some kinds of matching facilities should be provided by the user:
Air compressor, cooling water pump, air fan
Ventilation, cable and wire, vapor pipe and other pipes
Trial run consumption materials
Equipment for installation not indicated in this specification

Remarks:
In order to provide our customers with better equipment and service and inaccordance with the design requirement, we reserve the rights to modify some ofthe structures (more advanced) and parameters of this high-tech product.