Method and weaving machine for shedding

摘要

Shed formation on a weaving machine (2), which is driven by a main motor (3), with a shedding device (4), which is driven by a shedding motor (5), wherein in each motion cycle (N) of the weaving machine (2), a loom shed (7) formed by warp threads (8) of the weaving machine (2) is opened and closed dependent on a weave pattern, and wherein the synchronicity of the two motors (3, 5) is controlled by signals (10) of a control device (9). During a partial number (Tn1, Tn2) of motion cycles (N), the synchronicity of the two motors (3, 5) is changed in such a manner so that plural shed closure angles (FSW) at which the loom shed (7) in the respective motion cycles (N) is closed, form an increasing or decreasing sequence.

主权项

1. Method for shed formation on a weaving machine (2), which is driven by a main motor (3), with a shedding device (4), which is driven by a shedding motor (5), wherein, in each motion cycle (N) of the weaving machine (2) a loom shed (7) formed by warp threads (8) of the weaving machine (2) is opened and closed dependent on a weave pattern, and wherein the synchronicity of the two motors (3, 5) is controlled by signals (10) of a control device (9), characterized in that during a partial number (Tn1, Tn2) of motion cycles (N) the synchronicity of the two motors (3, 5) is changed in such a manner so that plural shed closure angles (FSW), at which the loom shed (7) is closed in the respective motion cycles (N) form an increasing or decreasing sequence, and further characterized in that a prescribed total number (Ng) of motion cycles (N) contains both a first partial number (Tn1) of motion cycles (N) in which plural shed closure angles (FSW) form an increasing sequence, as well as a second partial number (Tn2) of motion cycles (N) in which plural shed closure angles (FSW) form a decreasing sequence.