Method and weaving machine for shedding
AssigneeLindauer Dornier Gesellschaft mbH
InventorsGerhard Boegl, Michael Cramer
Life of this patent
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Abstract
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.
Claims11
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.
Weaving machine (2) with a main motor (3) for driving the weaving machine (2) and with a shedding device (4) with a shedding motor (5) for driving the shedding device (4) and with a control device (9), with the signals (10) of which the synchronicity of the two motors (3, 5) is controllable, characterized in that a control program is present in the control device (9), which is suitably adapted to carrying out a method 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 the signals (10) of the 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 an input device (11) is present, with which one or more of the following values are inputable by the operator
- a beginning value and/or end value of the shed closure angle (FSW) of an increasing or decreasing sequence of shed closure angles (FSW);
- a step width for an increasing or decreasing sequence of shed closure angles (FSW);
- a partial number (Tn1, Tn2) of motion cycles (N) in which plural shed closure angles (FSW) form an increasing or decreasing sequence;
- a total number (Ng) of motion cycles (N), which contains both a first partial number (Tn1) of shed closure angles (FSW) in increasing sequence as well as a second partial number (Tn2) of shed closure angles (FSW) in decreasing sequence.
Weaving machine (2) with a main motor (3) for driving the weaving machine (2) and with a shedding device (4) with a shedding motor (5) for driving the shedding device (4) and with a control device (9), with the signals (10) of which the synchronicity of the two motors (3, 5) is controllable, characterized in that a control program is present in the control device (9), which is suitably adapted to carrying out a method 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 the signals (10) of the 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.
Dependencies are inferred from the claim text.