Pick length setting method and device for use with a picking apparatus.

摘要

In a picking apparatus (1) comprising: a weft yarn measuring and storing device (2) including pick length adjusting mechanism (9, 12, 13, 14) capable of varying pick length, for winding a weft yarn (7) on a weft yarn measuring drum (10) to measure and store the weft yarn on the weft yarn measuring drum; a picking nozzle (3) for inserting the weft yarn released from the weft yarn measuring drum into a shed of warp by means of a fluid jet; and a weft yarn detector (4) disposed at a fixed position on the weft yarn arrival side, outside and near the warp; a pick length setting method comprising: a data input process in which data at least including a target adjustment length (L) is given to calculating means; a calculating process in which data corresponding to the target adjustment length (L), for adjusting the setting of the pick length adjusting mechanism is obtained through calculation; a pick length adjusting process in which an initial pick length is diminished or increased gradually during tentative picking operation to a pick length which causes the weft yarn detection signal of the weft yarn detector to change; and a target pick length setting process in which a final mode of operation of the pick length adjusting mechanism is decided on the basis of the calculated data corresponding to the target adjustment length.