| 摘要 |
A ROTARY TRIM AND FORM COMPRISING A ROTATING CYLINDRICAL PUNCH (305) AND A ROTATING CYLINDRICAL DIE (320), HAVING COMPLIMENTARY CIRCUMFERENTIAL TRIMMING CONTOURS (615) AND (620), FORMING CONTOURS (605) AND (610), AND TRANSPORTING CONTOURS (365) AND (367), FOR TRIMMING AND FORMING LEADS (110) OF DEVICES (105) PACKAGED IN A LEAD FRAME (100). THE ROTARY TRIM AND FORM INCLUDING A ROTATING FEED-IN CYLINDER (380) HAVING CIRCUMFERENTIAL TRANSPORTING CONTOURS (365) AND A SPRING WIRE (370) DISPOSED TANGENTIALLY AGAINST THE ROTATING FEED-IN CYLINDER (380) WHICH EXERTS PRESSURE ON THE LEAD FRAME (100) TO SYNCHRONISE THE CIRCUMFERENTIAL TRANSPORT CONTOURS (365) ON THE ROTATING FEED-IN CYLINDER (280) WITH THE TRANSPORT FEATURES (115) OF THE LEAD FRAME (100), PRIOR TO THE TRANSPORTING CONTOURS (365) OF THE ROTATING FEED-IN CYLINDER (380) TRANSPORTING THE SYNCHRONISED LEAD FRAME (100) TO THE CIRCUMFERENTIAL TRANSPORTING CONTOURS (365) ON THE ROTATING CYLINDRICAL PUNCH (305). (FIG.3)
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