Tape-reading control system for repeat-processing cycles of traverse cutting

Claim 2

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece comprising; record means containing a plurality of data blocks thereon for controlling the operation of said machine tool, said record means containing more data blocks for the repeat-processing cycles and having skip signs therein than is needed by said machine tool to complete a specific task; record reading means for reading command data of said data blocks contained in said record means and for supplying operating instructions to said machine tool in response thereto; sizing means for measuring at least one parameter of said workpiece, said sizing means generating an output signal when said parameter measurement corresponds to a predetermined value thereby indicating that said task has been completed; and record-reading control means coupled to said sizing means and to said record reading means for causing said record reading means to skip the command data of selected additional data blocks contained in said record means relating to said task upon receipt of said output signal from said sizing means when said record reading means reads said skip signs.

Claim 3

An improved system for controlling the repeat processing cycles of a machine tool operating on a workpiece as in claim 1, wherein said record-reading control means comprises: first circuit means coupled to said record reading means for starting said record reading means; second circuit means coupled to said first circuit means for causing said first circuit means to stop said record reading means in response to the reading of appropriate data by said record reading means; and third circuit means for causing the command data of said additional data blocks to be skipped in response to generation of said output signal and reading said skip signs, and for resetting said circuit means.

Claim 4

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece as in claim 2, wherein: said first circuit means comprises a first differential circuit; and a first flip-flop circuit coupled to said first differential circuit.

Claim 5

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece as in Claim 3, wherein: said second circuit means comprises a second flip-flop circuit, a first gate means coupled to said first and second flip-flop circuits; and, a second differential circuit coupled to said second flip-flop circuit.

Claim 6

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece as in claim 4, wherein: said third circuit means comprises a third flip-flop circuit coupled to said second flip-flop circuit; and, second gate means coupled to said third flip-flop circuit.

Claim 7

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece as in claim 5, wherein: said first circuit means comprises a first differential circuit; and, a first flip-flop circuit coupled to said first differential circuit.

Claim 8

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece comprising: record means containing a plurality of data blocks individually discriminated by block-end signs thereon for controlling the operation of said machine tool, said record means containing more data blocks for the repeat-processing cycles and having skip signs therein than is needed by said machine tool to complete a specific task; record reading means for reading command data of said data blocks and for supplying operating instructions to said machine tool in response thereto; sizing means for measuring at least one parameter of said workpiece each time each of said repeat-processing cycles is accomplished, said sizing means generating an output Signal when said parameter measurement corresponds to a predetermined value thereby indicating that said task has been completed; and record-reading control means coupled to said sizing means and to said record reading means for causing said record reading means to skip the command data of selected additional data blocks having said skip signs in response to generation of said output signal and reading said skip sign until said record reading means reads the data block not having said skip sign.

Claim 9

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece comprising: record means containing a plurality of data blocks individually discriminated by block-end signs thereon for controlling the operation of said machine tool, said record means containing more data blocks for the repeat-processing cycles and having skip signs therein than is needed by said machine tool to complete a specific task; record reading means for reading command data of said data blocks and for supplying operating instructions to said machine tool in response thereto; sizing means for measuring at least one parameter of said workpiece each time each of said repeat-processing cycles is accomplished, said sizing means generating an output Signal when said parameter measurement corresponds to a predetermined value thereby indicating that said task has been completed; and record-reading control means coupled to said sizing means and to said record reading means for causing said record reading means to skip the command data of selected additional data blocks having said skip signs in response to generation of said output signal and reading said skip sign until said record reading means reads the data block not having said skip sign.

Claim 10

An improved system for controlling the repeat-processing cycles of a machine tool operating on a workpiece as in claim 7, wherein said record-reading control means comprises: first circuit means connected to said record reading means for starting the operation of the same; second circuit means coupled to said first circuit means and set by the command data read by said record reading means for causing said first circuit means to stop the operation of said record reading means when said record reading means reads said block-end signs; and third circuit means for cancelling the command data of said additional data blocks having said skip signs when said record reading means reads said skip signs during the generation of said output signal so as to make said second circuit means reset.