Sweden SOLNA D480 shaftless tower semi-commercial printing production line includes three printing towers, an oven and a folding machine. The printing speed is 65,000 sheets / hour.
The SOLNA D480 CC (color to color) automatic registration system is mainly composed of the following parts:
1. Camera mounted on the paper guide roller. There is a lens on each side of each paper that is responsible for the corresponding side. When you are working, you can see the camera moving back and forth on the guide rails to find the set logo. Once it finds it, it will stop moving and continuously flash to capture the logo.
2. Mark. The mark is to set two small dots for each color. There are a total of eight small dots in the four colors. The relative positions of these eight dots are fixed. When working, the camera is responsible for finding and shooting images of these points on the paper and transmitting them to the registration system. The system judges whether the position of the plate is correct by comparing the positions of the points set in the program and thus determines the action of the registration motor.
3. The registration motor on the plate cylinder controls the circumferential or axial movement of the plate cylinder to achieve registration.
4. Register Contol System (register control system) installed on the console computer.
During work, after automatic registration is turned on in CC \ SETUP of the control panel, after the speed of the printing press reaches the set value, the Camera starts and automatically finds the Mark mark set during plate making. When the layout is clean, Camera transmits Mark's situation to the control system. The control system will make the registration motor react quickly to register the layout. When registering, the system always uses the black logo as the standard for the movement of the other three colors. Therefore, we can only move the black version to adjust the center line when the automatic overprinting is turned on during operation, and other colors will automatically follow up.
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