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Arrangement for Selectively Blanking Predetermined Lengths of Ceramic Sheets from a Tape Using a Non Ionizing Radiation Scanning System

IP.com Disclosure Number: IPCOM000045218D
Original Publication Date: 1983-Feb-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Murty, KE: AUTHOR [+3]

Abstract

A process is described for selectively blanking ceramic sheets from tape using die control logic such that the die life is prolonged and waste of material is minimized.

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Arrangement for Selectively Blanking Predetermined Lengths of Ceramic Sheets from a Tape Using a Non Ionizing Radiation Scanning System

A process is described for selectively blanking ceramic sheets from tape using die control logic such that the die life is prolonged and waste of material is minimized.

As shown in Fig. 1, an optical scanning inspection system 1, comprising optical scanner 3 and light detector 5, is used to inspect ceramic tape 7 fed from web feed device 9. Defect data thus generated is used by die control logic 11 to determine defect-free portions of the ceramic tape. The tape is continuously fed into a pneumatically actuated blanking die arrangement 13. The die is selectively activated by control logic 11 only when defect-free material is present under the die. Defective material is fed through the die into a scrap cutter 15 where it is cut and discarded. Blanks generated by the die are transferred from the die via transporter 17 to tray arrangement 19 where they are stacked in individual trays. The number of blanks per tray is under control of the machine operator.

The selective blanking of defect-free ceramic material is further conceptually shown in Fig. 2. Die control logic (not shown) activates the die after a predetermined length of defect-free material is available to remove blanks, as shown by the rectangle adjacent the tape region labeled "scrap" in Fig. 2. Defect regions on the sheet inhibit the die, and the material passed through th...