Patent ID: 7000512
Filing Date: 2006-02-21
Classification: B26D,B26F,B29C,B29K,B29L,B65D,Y10S,Y10T

Abstract:
1. A trimmer for nonround trimming of a blow molded container of the type made from an injection molded preform having an open end adjacent which the preform is held during blow molding thereof to include a nonround portion to be trimmed at a trimming plane, the trimmer comprising: a positioner for holding the container to position the nonround portion thereof for trimming; a rotary actuator that rotates about a rotary axis for rotating perpendicular to the trimming plane of the container as it is held by the positioner; a knife holder arm assembly pivotally supported by the rotary actuator about an arm axis spaced from the rotary axis, and the arm assembly including a knife holder that holds a knife for trimming the container; a biaser for biasing the arm assembly so the knife holder is biased toward the rotary axis during rotation of the rotary actuator; and a guide for engaging the knife holder under the impetus of the biaser during rotation of the rotary actuator so the knife held thereby moves in a nonround path to cut through the nonround portion of the container and thereby trim a scrap piece from the container.