THE MODULARIZED PUNCHING SYSTEM

With the KMS 30 HE automatic single head punching machine holes are punched in ceramic sheets. The ceramic sheets are stored in the in loading handling system. If necessary the sheets could be turned. After the alignment of the sheets, they are transported with the handling system 1 to the sheet support in front of the punching unit. The sheet is then sucked onto the sheet support and fixed in place with a vacuum. The punching frame moves over the sheet support, picks up the sheet and moves below the punching tool. The punching frame is positioned with an electric cross table. The large hole diameter is punched in the ceramic sheet with pneumatic punching cylinders. Then the small holes are punched in the sheet with punching needles via a cam controller. After the punching program has been completed, the punching frame lays the sheet on the sheet support again. After that the handling system 2 picks the sheet up. The sheet will be cleaned on both sides with the handling system 2 and put on the transparent glass of the inspection system. The sheet will be
moved between a very bright light and several high resolution CCD line scan cameras in steps of 11 µm (optical resolution). Within each step, one line of picture-data is taken and processed. In result the diameter and position of each via is determined. The readings are compared with the nominal data of the punching files. Depending on the tolerances defined by the customer, the result of the inspection is graded as good or bad. In case of a bad sheet the operator can locate the defect with the help of an interactive error display. There each defective via is displayed as seen by the camera and additional via-data is given. The operator can detect the position of the defect on a outline of the actual sheet where he has also access to functions for detecting global or systematic punching errors like the growing wastage of a pin. The amount of good and bad scanned sheets is displayed on the screen too. After the inspection the sheets are transported with the handling system 3 to the barcode printing unit. The barcode will be printed and checked by a scanner. The „good“ sheets will be transported with the handling system 4 to the unloading handling system. The bad sheets will be stored on the bad sheet convoyer. The system is controlled by a Siemens S7 PLC. Simple punching tool changes and user-friendly programming with the Simatic PC FI 45 ensure a high level of system flexibility.
 

MAIN FEATURES
punching frequency up to 25 Hz
positioning accuracy of the x/y axes of the punching unit +/- 5 µm
minimum possible punching diameter of 60 µm
additionally punching of contours and forms is possible

For detail information, please have a email to us.