Drive arrangement for a weaving loom and shedding machine
AssigneeLindauer Dornier Gesellschaft mbH
InventorsValentin Krumm, Dietmar Von Zwehl, Michael Lehmann, Dieter Mayer
Life of this patent
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Abstract
A drive arrangement is constructed for permitting the separate operation of a weaving machine and a shed forming machine. The drive arrangement compensates any r.p.m. variations of the weaving machine drive and of the shed forming machine relative to the drive shaft of the respective machine. This drive arrangement permits keeping the energy drawn from the electrical supply network during the start phase and the drive power to be provided for a normal operation of the weaving machine and of the shed forming machine optimally low.
Claims49
A drive mechanism for a weaving machine and shed forming machine with means for compensating r.p.m. fluctuations of the drive of the weaving and shed forming machine,
- (a) wherein the weaving machine includes an electric motor drive which is connected directly or through intermediate gear means with its main drive shaft,
- (b) wherein the shed forming machine includes an electric motor drive which is connected directly or through intermediate gear means with its drive shaft,
- (c) wherein at least the weaving machine includes means for braking the main drive shaft;
- (d) wherein a control unit is connected in a signal transmitting manner with the weaving- and the shed forming machine,
- (e) wherein the control unit includes closed loop control means for operating respectively one of said drives in dependency of the other of said drives, characterized in
- that said means for compensating comprise at least one partial flywheel mass (1.5, 1.11;
- 5.4, 5.14;
- 6.5, 6.16, 8.10, 8.18) which becomes effective on the main drive shaft (1.8;
- 5.7, 6.7, 8.1) of the weaving machine and at least one partial flywheel mass (2.5;
- 5.14;
- 6.5;
- 6.16;
- 8.10, 8.18) which becomes effective on the drive shaft (2.8;
- 5.17;
- 6.19;
- 8.15) of the shed forming machine or that gear means are provided which permit the mass inertia moment of at least one flywheel mass that is entrained for rotation with an electric motor drive (5, 5A;
- 6, 6A;
- 8, 8A, 8B) of the main drive shaft of the weaving machine, to become effective on the drive shaft (5.17;
- 6.19, 8.15) of the shed forming machine,
- that the drive of the weaving machine comprises a plurality of electric motor partial drives (5A;
- 6, 6A;
- 8, 8A, 8B) which are effective on the main drive shaft (5.7;
- 6.7, 8.1),
- that the drive of the shed forming machine is at least one of the electric motor partial drives 5A;
- 6, 6A;
- 8, 8A, 8B) which are effective on the main drive shaft (5.7;
- 6.7;
- 8.1), said at least one electric motor partial drive being operatively connected through the gear drive means, and in case of (8B) through drive (8) which functions as a contactless coupling, with the drive shaft of the shed forming machine,
- that the means for braking are preferably first brake means which are integrated into the partial drives, which bring the weaving machine to a standstill,
- that further second brake means (1.1;
- 4.5;
- 5.18;
- 6.18;
- 8.19) are allocated to the main drive shaft of the weaving machine,
- that third brake means (2.1;
- 5.19;
- 6.22;
- 8.20) are allocated to the drive shaft of the shed forming machine, and
- that all electric motor partial drives 1;
- 2, 5, 5A;
- 6, 6A;
- 8, 8A, 8B) are connected in a signal transmitting manner with the control unit.
A drive mechanism for a weaving machine with a main drive shaft and for a shed forming machine with a drive shaft and with means for compensating of r.p.m. fluctuations of the drive of the weaving machine and of the shed forming machine characterized by two components (5.12, 5.13;
- 6.2, 6.3;
- 6.14, 6.15;
- 8.8, 8.9;
- 8.11, 8.12;
- 8.16, 8.17) rotatable opposite to each other, wherein one component (5.13;
- 6.2;
- 6.14;
- 8.12) is connected either directly or through intermediate gear means (5.15, 5.16;
- 6.4, 6.20;
- 6.17, 6.21;
- 8.13, 8.14) with the drive shaft (5.17, 6.19;
- 8.15) of the shed forming machine, and wherein the other component (5.12;
- 6.3;
- 6.15;
- 8.8, 8.11) is connected either directly or through intermediate coupling means (5.10;
- 6.6;
- 6.12;
- 8.6) with the main drive shaft of the weaving machine, whereby the one component is alternately the stator and the respective other component is alternately the rotor of an electric motor drive (5.A;
- 6;
- 6A;
- 8, 8A, 8B).
A drive mechanism for a drive shaft of a weaving machine and/or a shed forming machine, said drive shaft having a first end and a second end, and including means for compensating r.p.m. fluctuations of the drive of the weaving and/or the shed forming machine, characterized in that at least one electric motor drive (7) is operatively connected to the drive shaft (7.3) between the ends of the drive shaft (7.3), and wherein said at least one electric motor drive (7) comprises two components (7.4, 7.5) which are movable opposite to each other, wherein one component (7.5) of said components is directly connected with the drive shaft (7.3) and is electrically the stator or rotor of said at least one electric motor drive (7), and that the other component (7.4) is the rotor or stator of the drive (7), respectively reversed.
Dependencies are inferred from the claim text.