Abstract:
An apparatus for twisting multifilament threads, having a plurality of friction-spindle devices which have in each case one group of friction spindles having a plurality of friction discs which are retained in an overlapping manner is described. The friction spindles of the friction-spindle devices are rotatably retained in a protruding manner on a carrier. In order to implement particularly tight machine pitches for processing threads, according to the invention an upper one of the friction-spindle devices is retained on an upper side of the carrier and a lower one of the friction-spindle devices is retained on a lower side of the carrier.
Abstract:
The invention relates to an open-ended spinning device having a rotor housing to which a vacuum can be applied, in which a spinning rotor spins at a high speed during spinning operation and that can be closed by a pivotally supported cover element comprising a receptacle for a replaceable channel plate adapter. According to the invention, the channel plate adapter (18) comprises a perimeter sealing surface (31) contacting the rotor housing (2) when the cover element (7) is closed and having mounting elements (30, 38) disposed on the back side thereof corresponding to associated mounting means (21, 41) in the area of the cover element (7) in the installed state of the channel plate adapter (18).
Abstract:
The invention relates to a method and a device for melt spinning and cooling synthetic filaments. A plurality of filaments is extruded from a polymer melt by means of a plurality of nozzle holes of a spinneret and is guided, after the extrusion, into a cooling shaft for the purpose of cooling, a part of the cooling air being exhausted out of an inlet end of the cooling shaft by means of an exhaust equipment opposite to the running direction of the filaments, in order to discharge the volatile components arising during the melt spinning for preventing deposits on the spinneret plate. In order to achieve the most uniform flushing effect possible below the spinneret, the size of a suction port at the inlet end of the cooling shaft is changed according to the invention for adjusting the exhaust of the cooling air, the filaments being guided together through the suction port after the extrusion.
Abstract:
The invention relates to an apparatus and a method for depositing synthetic fibers to form a non-woven web, in which method the synthetic fibers are guided in the form of a blowing stream through a drawing unit for being deposited on a deposit belt. For this purpose, inside the guidance distance between a blast opening of the drawing unit and the deposit belt, several guidance means are arranged, which form a guidance channel above the deposit belt, wherein the guidance means form a channel opening of the guidance channel at a distance from the blast opening of the drawing unit. In order to achieve constant strength in the deposition of the fiber strands in the non- woven web, the distance between the outlet of the drawing unit and the channel opening of the guidance channel is larger than half the guidance distance according to the invention, wherein the guidance width of an open space formed between the outlet of the drawing unit and the channel opening of the guidance channel is larger than that of the guidance channel.
Abstract:
The invention relates to a method for treating a fibre cable for the production of stacked fibres and to a device for carrying out said method. The fibre cable is drawn in a drawing zone before being cut into stacked fibres, wherein the fibre cable is treated with a fluid prior to the drawing process. After drawing, the fibre cable undergoes a thermal treatment in order to immobilize the fibre material, the fluid contained in the fibre cable before the thermal treatment is reduced by pinching the fibre cable. In order to adjust the fluid content in the fibre cable to the respective treatment stages, the fibre cable is already pinched within the drawing zone over its width to such an extent that an evenly distributed proportion of weight of
Abstract:
The invention relates to a spinning device for producing a yarn. Said spinning device comprises a plurality of sections in which a false twist spindle imparts a first, high, false twist and a ring spinning spindle imparts a second, lower, correct twist to a thread, the ratio of the two twists in relation to each other being controllable. The device according to the invention is characterized in that every false twist spindle (13) can be driven by means of its respective drive (15) that is associated therewith. The speed of said drive is controlled by means of an electronic control device (16) in a defined ratio to defined operating parameters of the spinning device (3, 12).
Abstract:
The invention relates to a texturing machine for texturing a multitude of threads. The texturing machine comprises a creel frame for holding a multitude of supply bobbins and comprises a machine frame for holding a multitude of process units for drawing off, guiding and winding up the threads. The machine frame has a multipart design in order to form an operator passage. The process units of a processing location are arranged to form a thread path that partially surrounds the operator passage. In order to obtain a high integration and closeness of the process units inside the machine frame, the invention provides that a portion of the process units are held in an overlapping manner by at least one frame part of the machine part, said frame part facing the operator passage, the guiding of the thread ensuing between the overlapping process units via a redirecting means.
Abstract:
The invention relates to a device for melt spinning of a linear filament bundle with a spinning beam for mounting a longitudinal spinning nozzle group. The spinning nozzle group comprises a nozzle plate on an underside with a number of nozzle drillings and an inlet plate on an upper side with at least one inlet channel, a distribution chamber being arranged between the inlet plate and the nozzle plate, connected to the inlet channel in the inlet plate and the nozzle drillings in the nozzle plate. According to the invention, a residence time for the polymer melt within the nozzle group is kept as constant as possible with a large production range by means of the inlet plate having several residence chambers connected to inlet channels, arranged at a separation from each other in the longitudinal direction of the spinning beam.
Abstract:
The invention relates to an apparatus for producing entanglements on a multifilament thread, having a treatment channel, having a nozzle bore that opens into the treatment channel and having an air supply device. The air supply device interacts with the nozzle bore in order to produce pulse-like compressed air flows, wherein the compressed air is produced via a pressure chamber and a pressure source. In order in particular to control the pressure pulses produced in the pressure chamber, a volume store is arranged between the pressure chamber and the pressure source, wherein the volume store has a storage volume which is greater than a chamber volume of the pressure chamber.
Abstract:
A gear pump is described with a plurality of gearwheels which engage into one another in order to convey a medium and are held rotatably in a pump housing. One of the gearwheels is driven by a pump shaft which can be coupled to a drive via a coupling end. In order, in particular at greatly fluctuating operating pressures, to obtain uniform conveying streams even in the case of changing load states within one revolution of the pump shaft, a brake ring is arranged according to the invention on the circumference of the pump shaft, which brake ring acts by way of at least one braking surface on a frictional surface of the pump shaft or on a frictional surface of the pump housing.