The guide apparatus for a long object comprises: a movable portion that is capable of reciprocal movement in a reciprocal direction; a fixed portion; a pair of sheets that have flexibility; and a guide member. The fixed portion is fixed so that the movement in the reciprocal direction is not possible. The pair of sheets, with a curved part formed at an intermediate position in the longitudinal direction, couple the movable portion and the fixed portion. The guide member reciprocates in the reciprocal direction while guiding the movable portion and the pair of sheets so that the pair of sheets reciprocate in the reciprocal direction as the curved part is shifted in accordance with the reciprocal movement of the movable portion. The guide member forms, together with the pair of sheets, a storage chamber for storing a long object.

The guide apparatus for a long object comprises: a movable portion that is capable of reciprocal movement in a reciprocal direction; a fixed portion; a pair of sheets that have flexibility; and a guide member. The fixed portion is fixed so that the movement in the reciprocal direction is not possible. The pair of sheets, with a curved part formed at an intermediate position in the longitudinal direction, couple the movable portion and the fixed portion. The guide member reciprocates in the reciprocal direction while guiding the movable portion and the pair of sheets so that the pair of sheets reciprocate in the reciprocal direction as the curved part is shifted in accordance with the reciprocal movement of the movable portion. The guide member forms, together with the pair of sheets, a storage chamber for storing a long object.

In one example, a festoon system comprises a festoon module having a support assembly, and further comprises at least one upper sheave and at least one lower sheave, which are movable relative to one another by movement of at least one of the upper sheave or the lower sheave. At least one wire is configured to enter the festoon module at an entrance region, extend around a groove of the least one lower sheave and at least one groove of the at least one upper sheave, and then exit the festoon module at an exit region. A first coupling location of the support assembly is adjacent to the entrance region of the festoon module, and a second coupling location of the support assembly is adjacent to the exit region of the festoon module. Different modules are configured to be coupled to the second coupling location.

In one example, a festoon system comprises a festoon module having a support assembly, and further comprises at least one upper sheave and at least one lower sheave, which are movable relative to one another by movement of at least one of the upper sheave or the lower sheave. At least one wire is configured to enter the festoon module at an entrance region, extend around a groove of the least one lower sheave and at least one groove of the at least one upper sheave, and then exit the festoon module at an exit region. A first coupling location of the support assembly is adjacent to the entrance region of the festoon module, and a second coupling location of the support assembly is adjacent to the exit region of the festoon module. Different modules are configured to be coupled to the second coupling location.

A filament accumulator assembly is provided containing a filament inlet for receiving a continuous filament from the filament source and a filament outlet for receiving the continuous filament from the filament inlet, the continuous filament forming a filament loop between the filament exiting the filament inlet and entering the filament outlet. The filament accumulator assembly further comprises a filament track defining at least part of an inner boundary and an outer boundary of a circuitous filament route between the filament inlet and the filament outlet, and the filament loop is bound by the filament track. The filament loop has a diameter that varies across a range of potential diameters within the filament track.

A method for processing a strand-type fiber bundle includes sending the fiber bundle to an air nozzle of a pre-spinning machine used to produce roving. During normal operation, a twist is imparted to the fiber bundle via a vortex air current within the air nozzle to form the roving, wherein the roving leaves the air nozzle through an outlet and is deposited in or on a receptacle. Normal operation of the pre-spinning machine is interrupted in a stop phases during which roving is not produced by the air nozzle. A start-up phase is commenced between the stop phase and subsequent normal operation wherein the roving produced during the stop phase is discarded via a roving discharge after leaving the air nozzle when quality of the roving does not meet a desired specification. The roving discharge is deactivated when the quality of the roving meets the desired specification and the roving removed by the roving discharge is separated from the roving.

A method for processing a strand-type fiber bundle includes sending the fiber bundle to an air nozzle of a pre-spinning machine used to produce roving. During normal operation, a twist is imparted to the fiber bundle via a vortex air current within the air nozzle to form the roving, wherein the roving leaves the air nozzle through an outlet and is deposited in or on a receptacle. Normal operation of the pre-spinning machine is interrupted in a stop phases during which roving is not produced by the air nozzle. A start-up phase is commenced between the stop phase and subsequent normal operation wherein the roving produced during the stop phase is discarded via a roving discharge after leaving the air nozzle when quality of the roving does not meet a desired specification. The roving discharge is deactivated when the quality of the roving meets the desired specification and the roving removed by the roving discharge is separated from the roving.

A method monitors/controls unwinding and supplying thread from a supply device to a textile machine. The supply device includes a control unit and a thread collection and supply unit moved by a motor. A first sensor detects first data indicative of a current driving torque applied to the collection and supply unit. A second sensor detects second data indicative of a current tension value of thread supplied to the textile machine. A first indicator representing driving torque values is calculated, each variation of the first indicator representing a variation of the driving torque value to compensate for a deviation of the first data. A second indicator is calculating representing tension values applied to the thread supplied to the textile machine. Each variation of the second indicator representing a deviation of the second data. Based on the indicators, malfunctions in the unwinding and supply of thread are detected and signaled.

A method monitors/controls unwinding and supplying thread from a supply device to a textile machine. The supply device includes a control unit and a thread collection and supply unit moved by a motor. A first sensor detects first data indicative of a current driving torque applied to the collection and supply unit. A second sensor detects second data indicative of a current tension value of thread supplied to the textile machine. A first indicator representing driving torque values is calculated, each variation of the first indicator representing a variation of the driving torque value to compensate for a deviation of the first data. A second indicator is calculating representing tension values applied to the thread supplied to the textile machine. Each variation of the second indicator representing a deviation of the second data. Based on the indicators, malfunctions in the unwinding and supply of thread are detected and signaled.

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.