초록 ▼

A method and apparatus for cutting pattern pieces from sheet material with an automatically controlled cutting machine utilizes special control techniques for guiding a reciprocating cutting blade accurately along a desired cutting path defined by the pattern piece peripheries. The cutting machine i

A method and apparatus for cutting pattern pieces from sheet material with an automatically controlled cutting machine utilizes special control techniques for guiding a reciprocating cutting blade accurately along a desired cutting path defined by the pattern piece peripheries. The cutting machine includes a control computer which also serves as a data processor for generating machine command signals and controlling cutting blade movements. The controller has memory units which contain standard cutting programs and optinal programs. From a program selector panel, the cutting machine operator can select optional programs which modify the standard programs in a manner most suitably adapted to cause the cutting blade to follow the cutting path in the sheet material more accurately. The optional programs vary the feed rate or stroking speed, introduce yaw signals to control blade orientation along the cutting path, or perform other control functions.

대표청구항 ▼

A method of cutting sheet material with an automatically controlled cutting machine having a cutting tool advanced along a cutting path during relative movements of the sheet material and cutting tool and in accordance with predetermined information defining the cutting path comprising: reducing the

A method of cutting sheet material with an automatically controlled cutting machine having a cutting tool advanced along a cutting path during relative movements of the sheet material and cutting tool and in accordance with predetermined information defining the cutting path comprising: reducing the predetermined information to a machine readable form; establishing a primary program for processing the reduced predetermined information and generating fundamental commands for advancing the sheet material and the cutting tool relative to one another along the cutting path in accordance with the predetermined information; establishing an optional program for processing the reduced predetermined information in conjunction with the primary program and generating supplemental machine commands; storing the primary and optional programs in a program memory; activating the primary program stored in the memory; selectively activating or not activating the optional program stored in the memory by means of a selector on the cutting machine; processing the predetermined information with the primary program and generating fundamental machine commands when the optional program has not been selected at the cutting machine; processing the predetermined information with the primary and the optional program and generating supplemental and fundamental machine commands when the optional program has been selected at the cutting machine; and controlling the relative movement of the sheet material and the cutting tool with the machine commands generated. An automatically controlled cutting machine for cutting sheet material comprising: a cutting table including a cutting tool and a support surface on which sheet material is held during a cutting operation; motive means responsive to machine command signals for moving the sheet material and cutting tool relative to one another in cutting engagement; computing means receiving data defining desired cutting paths in the sheet material for generating machine command signals which produce the desired cutting paths from the received data, said computing means also including an optional program memory having a program of biassing signals for combination with the machine command signals; and means for selecting the optional program.