-Print on round cup & bowl
-Printing cup material: PP, PET, PS, PLA
-Max. printing speed: 300 pcs/min
-Qty of Colorhead: 7 units for 7 color cup bowl offset printing machine
-Cup height: 30~235mm
-Printing height: 160mm
-Rim diameter: 180mm
-Printing diameter: 168mm
-Max. taper: 15 degree
-Printing mode: 6 or 3 blanket mode, switchable.
-Stable base and blanket roller of 7 color cup bowl offset printing machine. More than 1 ton for each;
-Well build colorhead based on 30 years of manufacturing experience;
-8 rollers in 6 colorhead and 7 rollers in 1 colorhead ;
-4 screw separator with no gap make stable cup feeding;
-Easy switch between 3 and 6 blanket mode;
-Mandrel rotation for corona treatment and UV curing are driven by servo motors;
-Pinhole detection and reject system;
-Easy printing plate mounting;
-Quick change for printing model and mandrel;
-Accurate counting and restacking;
-Ink fountains and rollers are easy detached for cleaning and replacing;
-Blanket roller of I or 2 layers of rubber blanket for your choice.
Pictures of 7 color cup bowl offset printing machine:
Printing part of 7 color cup bowl offset printing machine:
Plate mounting device
1.How to control the ink volume at each colorhead of 7 color cup bowl offset printing machine?
-Set the parameter at each colorhead, the frequency and time of the transferring roller getting ink from ink fountain.
2.What should we adjust when cup mold is changed?
-Size of the cup feeding aisle;
-The height of cup separating device;
-The location of electrodes on corona treatment;
-The gap between cup mold and blanket roller, make sure they are parallel;
-The distance between cup mold and UV lamp box;
-The size of collecting aisle.