Abstract: Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption xm of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption xt; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations. In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

Abstract: Disclosed is a weaving method with which the yarn tension of several part groups with at least one warp thread per part group is controlled or adjusted separately, in order to follow a respective reference yarn tension profile during weaving, where, for at least one part group, the reference yarn tension profile is changed during weaving, where the reference yarn tension profile is determined and changed separately for at least two part groups, and where each reference yarn tension profile is selected from a collection of different reference yarn tension profiles. Also disclosed is a weaving machine provided with yarn tensioning elements, a storage unit in which said collection is provided, and a control or steering unit in order, in cooperation with the yarn tensioning elements, to adjust or control the yarn tension in separate warp threads using the indicated weaving method.

Abstract: Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption xm of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption xt; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations. In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

Abstract: A weft thread tensioning device includes a weft thread path defining arrangement having two weft thread passage elements positioned at a distance with respect to each other for receiving a weft thread such as to extend along a straight weft thread path extending between the weft thread passage elements. A weft thread deflection element is positioned between the weft thread passage elements in the direction of the weft thread path. The weft thread deflection element is movable to act on a weft thread extending across the weft thread passage elements deflecting the weft thread between the weft thread passage elements out of the straight weft thread path. A deflection element drive moves the weft thread deflection element and includes a controller associated therewith for controlling the movement of the weft thread deflection element for deflecting a weft thread extending across the weft thread passage elements.

Abstract: Disclosed is a weaving method with which the yarn tension of several part groups with at least one warp thread per part group is controlled or adjusted separately, in order to follow a respective reference yarn tension profile during weaving, where, for at least one part group, the reference yarn tension profile is changed during weaving, where the reference yarn tension profile is determined and changed separately for at least two part groups, and where each reference yarn tension profile is selected from a collection of different reference yarn tension profiles. Also disclosed is a weaving machine provided with yarn tensioning elements, a storage unit in which said collection is provided, and a control or steering unit in order, in cooperation with the yarn tensioning elements, to adjust or control the yarn tension in separate warp threads using the indicated weaving method.

Abstract: Disclosed is a yarn tensioning system for keeping at least one yarn, which is taken from a yarn storage system to a yarn take-off system of a weaving machine, under tension. The system includes a brake roller around which the yarn is at least partially wound, and a motor for supplying a torque to the brake roller, the motor being actuable in generator operation to keep the yarn under tension between the brake roller and the yarn take-off system. Also disclosed is a weaving machine including such a yarn tensioning system, as well as a method for keeping at least one yarn under tension, the at least one yarn being taken from a yarn storage system to a yarn take-off system.

Abstract: A delivery device with actuators for delivering yarns in a textile machine, controllers for controlling the actuators, which comprise produce measurement signals as a measure of the drive torque of the actuators, and monitors for monitoring the tensions of the yarns using the measurement signals. Additionally, at least one embodiment concerns a method for monitoring the tension of yarns which are delivered in a textile machine by means of actuators, comprising producing measurement signals as a measure of the drive torque of the actuators, which is a measure of yarn tension, and monitoring the tension of the yarns using the measurement signals.

Abstract: A method and a device for bringing a textile machine to a controlled standstill in the event of a failure of the power supply, and a correspondingly equipped textile machine, the textile machine having at least two axes that are driven in synchronization by respective electric motors (M1-M5) connected to a common intermediate voltage circuit (1), and in which at least one electric motor acting as power generator can supply electric power to at least one other electric motor via the common DC bus (1), and in which the voltage (V) on the common DC bus is controlled by varying at least two variables in such a way that the voltage follows a previously defined curve while the textile machine is being brought to a standstill.

Abstract: The present invention relates to a yarn tensioning system for keeping at least one yarn, which is taken from a yarn storage system to a yarn take-off system of a weaving machine, under tension. The system includes a brake roller around which the yarn is at least partially wound, and a motor for supplying a torque to the brake roller, the motor being actuable in generator operation to keep the yarn under tension between the brake roller and the yarn take-off system. In addition, the present invention relates to a weaving machine comprising such a yarn tensioning system, as well as a method for keeping at least one yarn under tension, the at least one yarn being taken from a yarn storage system to a yarn take-off system.

Abstract: A method and a device for bringing a textile machine to a controlled standstill in the event of a failure of the power supply, and a correspondingly equipped textile machine, the textile machine having at least two axes that are driven in synchronization by respective electric motors (M1-M5) connected to a common intermediate voltage circuit (1), and in which at least one electric motor acting as power generator can supply electric power to at least one other electric motor via the common DC bus (1), and in which the voltage (V) on the common DC bus is controlled by varying at least two variables in such a way that the voltage follows a previously defined curve while the textile machine is being brought to a standstill.

Abstract: A device (1) equipped with pattern-controlled components (2) for pattern-controlled feeding and/or selection of yarn for a textile machine, comprising a plurality of actuators (4) and a cooling circuit (5, 8) through which coolant is flowable for the cooling of the actuators (4), whereby the actuators (4) in the device (1) are installed alongside the cooling circuit (5, 8) and are mountable so as to be detachable so that the actuators can be removed without interrupting the cooling circuit (5, 8). Furthermore, a textile machine comprising such a device (1).

Abstract: A yarn tensioning system (1) for keeping at least one yarn (2) which is taken from a yarn storage system (3) to a yarn take-off system (4) of a weaving machine under tension, comprising a brake roller (5) around which the yarn (2) is at least partially wound and a motor (6) for supplying a torque to the brake roller (5), which is actuable in generator operation to keep the yarn (2) under tension between the brake roller (5) and the yarn take-off system (4). In addition, a weaving machine comprising such a yarn tensioning system (1) and a method for keeping at least one yarn (2) under tension which is taken from a yarn storage system to a yarn take-off system.

Abstract: A tufting machine comprises a needle bar and a needle bar drive mechanism for moving the needle bar towards and away from a backing material passed through a tufting zone by means of a backing material feed mechanism. The machine further comprises at least one controller and a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.

Abstract: A method and a device for bringing a textile machine to a controlled standstill in the event of a failure of the power supply, and a correspondingly equipped textile machine, the textile machine having at least two axes that are driven in synchronization by respective electric motors (M1-M5) connected to a common intermediate voltage circuit (1), and in which at least one electric motor acting as power generator can supply electric power to at least one other electric motor via the common DC bus (1), and in which the voltage (V) on the common DC bus is controlled by varying at least two variables in such a way that the voltage follows a previously defined curve while the textile machine is being brought to a standstill.

Abstract: A yarn tensioning system (1) for keeping at least one yarn (2) which is taken from a yarn storage system (3) to a yarn take-off system (4) of a weaving machine under tension, comprising a brake roller (5) around which the yarn (2) is at least partially wound and a motor (6) for supplying a torque to the brake roller (5), which is actuable in generator operation to keep the yarn (2) under tension between the brake roller (5) and the yarn take-off system (4). In addition, a weaving machine comprising such a yarn tensioning system (1) and a method for keeping at least one yarn (2) under tension which is taken from a yarn storage system to a yarn take-off system.

Abstract: A deliver device (1) with actuators (3) for delivering yarns (2) in a textile machine, control means (4) for controlling the actuators (3) which comprise measuring means with measurement signals as a measure of the drive torque of the actuators (3) and monitoring means (5) for monitoring the tension of the yarns (2) using said measurement signals, a method for monitoring the tension of yarns (2) which are delivered in a textile machine by means of actuators (3), comprising producing measurement signals as a measure of the drive torque of the actuators (3) as a measure of the tension, the use of control means (4) for controlling actuators (3) for delivering yarns (2) in a textile machine in order to monitor the tension of the yarns (2).

Abstract: A device (1) equipped with pattern-controlled components (2) for pattern-controlled feeding and/or selection of yarn for a textile machine, comprising a plurality of actuators (4) and a cooling circuit (5, 8) through which coolant is flowable for the cooling of the actuators (4), whereby the actuators (4) in the device (1) are installed alongside the cooling circuit (5, 8) and are mountable so as to be detachable so that the actuators can be removed without interrupting the cooling circuit (5, 8). Furthermore, a textile machine comprising such a device (1).

Abstract: A tufting machine comprises a needle bar and a needle bar drive mechanism for moving the needle bar towards and away from a backing material passed through a tufting zone by means of a backing material feed mechanism. The machine further comprises at least one controller and a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.

Abstract: A machine for producing synthetic threads comprises at least one extruder station and at least one controller, further comprising a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.

Abstract: A device is provided for driving one or several pile carriers (2) for the selection of one or several pile yarns (15), comprising at least one drive motor (4) for driving a pile carrier (2), the pile carrier moving under the motor housing (7) of the drive motor and the motor shaft (5) of the drive motor (4) being provided with driving means (6) for directly driving the pile carrier (2), the pile carrier (2) being provided for performing a linear back and forth movement.