Shima Seiki Mfg., Ltd.

Shima Seiki Manufacturing Limited

Toshiro Ochi

Toshiaki Morita

Taichi Imai

An apparatus for measuring the width of a cutting blade in a linear motor is activated when the cutting blade is raised. A working pin is advanced and one end of a detecting pin is abutted against an edge of the cutting blade. Thereafter, the working pin is returned. The blade width is derived by deducting the number of inputted driving pulses in returning from the advanced position of the detecting pin. The cutting blade is polished each polishing cycle for predetermined times by polishing rollers. The width of the cutting blade is measured by blade width detecting means during each predetermined polishing cycle. The measurement value of the blade width is fed back into a control device so that the subsequent polishing time of the cutting blade with the polishing rollers is adjusted until it becomes appropriate. The expiration of the useful life of the polishing rollers is determined when a long polishing time is required.

Apparatus for measuring a cutting blade width in a cutting apparatus

An apparatus for detecting abnormal conditions of a fabric on a table and a cutter which is movable along a length of the table for cutting at any desired angle relative to a center line. The abnormal condition is detected before the material is cut thereby avoiding cutting a material with an abnormality.

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Wakayama, Japan

Toshiro Ochi