Method of driving waste selvage cutter for shuttleless loom and drive device for carrying out the same

摘要

A waste selvage cutter (1) has a waste selvage cutting unit (5) disposed near a selvage, on a pick arriving side opposite a picking side, of a fabric (4) on a shuttleless loom (2) to cut a waste selvage formed by interlacing leading ends of picked filling yams (7) and catch cords (18). Cutting period at which the waste selvage cutting unit (5) is driven for a cutting operation is controlled according to at least the rotating speed of the main shaft, a pick spacing in a fabric (4) on the shuttleless loom (2) or the type of filling yarns. A plurality of cutting periods for at least rotating speeds of the main shaft, pick spacings in the fabric (4) or types of filling yarns are stored in a storage device included in a drive motor controller (20) for controlling an drive motor (3) for driving the waste selvage cutting unit (5). A cutting period suitable for a weaving condition among the cutting periods stored in the storage device of the drive motor controller (20) is selected, and the drive motor controller (20) controls the drive motor (3) to drive the waste selvage cutting unit (5) for a cutting operation at the selected cutting period.