Fully automatic flexo duplex board corrugated board printing slotting and die cutting machine

Main technical parameters

♦ Main motor excitation speed adjustable control, printing and die cutting units electrical phases adjustment, convenient and reliable.
♦ All drive rollers are high grade steel, plate with the hard chromium, abrade outside.
♦ Drive gear adopt 40 Cr high grade alloy steel to grind the day after tomorrow but becomes and goes through 50 degree of heat treatment Rockwell hardness greater than.
♦ Rectifies machine every electric part, pneumatic locking, pneumatic general locking, sustained bell warning during moving, ensures operation personnel safe.
♦ Different start and stop warning rings.
♦ Start the machine by both hands, ensures that handling person safe.
♦ In front, middle and the end, there are emergency stop buttons.
♦ There are different guiding lights for switching-on, standby, moving and abnormal (three-color guiding lights of LED).
♦ There are emergency stop buttons in each unit which can stop the moving of the unit inside to ensure the operators safe. 
♦ Adopting int’l famous brands electric fittings for the whole machine. The complete machine zeroes without exception , wipe printing plate memory and preset function, printing and die-cutting phases zero, pre-adjustment and accurate adjustment, phase adjustment, all above make the whole machine with much higher accurate.

Performance and characteristics

A. Feeding section (front edge suction feeding)

1) Main control panel consists of speed controller and buttons, convenient and reliable.

2) Main motor switching-on is controlled by double buttons which ensure the safety of the operators and the main machine.

3) Continuous feeding (with counter).

4) Paperboard feeding counting setting, displaying production quantity.

5) Left and right baffles are controlled by motor-driven with gauge display.

6) The gap of the front baffle is adjusted manually. And there are dust-removing brushes at the rear of the baffle to clean the dust and miscellany and improve the printing quality.

7) Four shafts front edge feeding motor 7.5Kw, auxiliary suction feeding, can adjust the suction strength as per the warping degree of the paperboards to ensure smooth feeding (with one 3Kw dust-removing motor).

8) Upper feeding roller outer dia. φ162 mm, coated with anti-wear rubber which can avoid to press down the paperboard.

9) Lower feeding roller outer dia. φ162mm, chrome coat with anilox.

10) Cross slide block coupling transmission to decrease abrasion and make transmission much more stable.

11) Electromotive control clutch, and with continuous alarming while moving to ensure the operators safe.

12) Driving shaft with electromagnetic abrasion clutch to avoid faulty operation or protect motors while overload.

13) Automatic return to zero in Feeding, printing and die cutting sections.

14) Air pressure interlocking devices.

B. Printing section

1. Forme roller

   1) Forme roller outer dia. ø525.6 mm (including forme thickness: Φ540mm)

   2) Printing roller with fine grinding and chrome coated.

   3) Balancing correction, stable running.

   4) Forme-hanging device, single side locking, accurate, convenient and fast.

   5) Forme-hanging groove at the whole forme, suitable for 10mm forme-hanging slices.

   6) Foot switch electromotive control the rotation making it easy to mount and disassemble the forme.

2. Print-pressing roller

1) Outer dia. of the print-pressing roller Φ186.54mm.

2) Fine grinding with chrome coated.

3) Balancing correction, stable running.

4) Self-locking device for the gap adjustment, adjusting range 0-13mm.

3. Anilox roller (first metal anilox roller 200lines, second one 220lines, the third 220lines, and the fourth 240line)

1) Anilox roller dia. Φ216mm.

2) Hard chrome plated.

3) Even ink applying, lengthen the life of the forme and the rubber roller.

4) Speed difference between the rubber roller and the anilox roller, thus, the rubber roller will have the function of ink-scraping.

5) Air pressure automatic lifting gear match the feeding section (the anilox roller descends to contact with the forme while printing, and the anilox roller lifts to depart from the forme while stopping printing).

4. Ink distributing roller

1) Outer dia. Φ200 mm.

2) Anti abrasion and corrosion rubber.

3) Crown special grinding, better distribution.

4) Self-locking structure for the rubber rollers gap adjustment, range: 0-3mm.

5. Phases adjusting structure

1) Plant-type gear structure.

2) Digital display for the phases, making the operation much more convenient, intuition and correction.

3) PLC control and 360 degree electric digital adjustment for print phases.

4) VFD control for adjustment for the forme roller, it will be faster to return to zero or change the forme, and make it faster to change the forme.

5) The whole machine and the feeding part will automatically return to zero, accuracy 0.5mm, then the phases will adjust automatically and roughly, and then input parameters after test running one sheet, which can greatly avoid waste.

6. Ink circulation system

1) Air-pressure type diaphragm pump, stable ink supply and easy operation.

2) The pump can not supply ink before the rubber roll and the anilox roller gather up.

3) Ink filtering device.

7. Print phases fixing device

Pneumatic brake structure. When units separate, the brake device limits the gear moving, which can keep the phases unchangeable.

8. Axial adjusting structure

1) Axial electric adjustment for print roller, range: ±10 mm.

2) Digital display for position, making it convenient, intuition and correction to operate.

C. Slotting section

1. Pre-pressing wheels. The paperboards will be not easy to be broken after Pre-pressing.

2. Manual adjustment for pre-pressing wheel gaps.

3. Manual adjustment for groove wheel gaps, the data will be displayed on the dial scale.

4. The width of the slotting knifes is 7.0mm. Alloy steel, two-piece type edge trimming knife, sharp and high precision.

5. Manual adjustment for the slotting knife base gap, the data will be displayed on the dial scale.

6. Plant-type gear structure for the slotting phases adjustment.

7. PLC control and 360 degree electric and digital adjustment for the slotting phases.

8. Axial synchronous electric adjustment for the slotting upper and lower knife bases, pre-pressing upper and lower wheels and precise pressing upper and lower groove wheels.

9. the structure of the upper and lower slotting knives discs is forward and backward double discs, that is to say, the forward knife and the backward knife are mounted on different bases, which makes it easy to operate, adjust and maintain.

D. Die cutting section

1) Consisting of die roller and rubber mat roller, the rubber mat roller is upper roller with outer diameter 526.34mm. Rubber mat thickness 10mm, width 250mm (Taiwan brand), moving distance: 50mm, normally 8million times die cutting. There is differential compensator which ensures the die cutting accuracy and keep the same linear speed with the die wheel.

2) The die roller is lower roller, outer dia. 555.5mm, knife 25.4X1.42mm, and the knife wheel shaft can be adjusted for 10mm right and left.

Wooden plate thickness:

                   16-18mm (3ply corrugated paperboard)

                   17-15.3mm (5ply corrugated paperboard)

3) Phase adjustment mode is the same as that of printing unit, the rubber mat roller can be moved mechanically for 30mm right and left, and the rubber mat repair system is adopted.

4) Separate Servo driving system.

E. Stacker

1. Manual-type automatic adjustment for paperboard collection.

2. Paperboard collection speed can be synchronous to the feeding speed, and can also be adjusted separately.

3. Stacking height: 2500mm.

4. The lifting of the collection table is driven by strong chain.

5. There are anti-falling device for the collection platform which guarantees the safety of the operators.

6. Pneumatic collection board.

7. Flat wrinkle belt avoiding paperboards sliding.

8. The collection arm belts can be adjusted separately.

Main products

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