Abstract: The present invention concerns a procedure for the reworking of a open-end spinning apparatus for a spin rotor, which is carried in the V-notch between support disks and is supported by a ball axial thrust bearing. Where the reworking is concerned, the bearing block of the open-end spinning apparatus is dismounted, the ball axial thrust bearing is removed from the bearing block and in accord with the invention, is replaced by an aerostatic bearing in the bearing block.

Abstract: The present invention relates to a cleaning device (1) of a rotor spinning unit with a cleaning head (63) and an extensible device (12, 31) to extend and retract at least the cleaning head (63). According to the invention, the cleaning head (63) is replaceable and connected to the extensible device (12, 31).

Abstract: A process for the level adjustment of the can plate of a sliver can is proposed which is in a filling position at the output of a textile machine to be filled with fiber sliver F. The can plate is moved before the start of the filling process by a first moving device from a lower can plate position into a higher can plate position and is moved into the lower can plate position during the filling of the sliver can. The process according to the invention is characterized in that the can plate is moved before the start or during the starting phase of the filling process by a second moving device from the higher can plate position into an upper filling position after the sliver can enters a position to accept sliver from the textile machine. Furthermore, a suitable apparatus to perform the process is presented.

Abstract: A procedure is provided for controlling individual components of a work station in a textile machine. The textile machine includes a plurality of the work stations with each work station having individual control devices. Components of the work stations are connected to a bus system, and the bus system is connected to a central control apparatus. A default value identifying address is set for the components. The central control apparatus recognizes that the components have been installed at the work stations and a recognition phase is initialized wherein the components are interrogated by the central control apparatus. The default address is converted to a component specific address for each of the components and the same type of components have different specific addresses. Operation of the components is controlled through the central control apparatus that communicates with selected components through their respective control device in accordance with their respective component specific address.

Abstract: The proposal is made, that for the improvement of the coating of disintegrator rolls, an accessory wire in the area of a tooth base is to be coated with a reduced quantity of hard material granulate in regard to the coating on the tooth. With the proposed coating, the advantage is gained, that a precoated accessory wire, without damaging the coating, can subsequently be wound on an accessory wire carrier.

Abstract: The invention concerns an arrangement of service positions (A1, A3, B2, B4) for maintenance apparatuses (14a-14d), which can travel on a guide rail (15, 16) along a multiplicity of similar workstations (13) on a first side of a textile machine (10), wherein a maintenance apparatus (14a, 14d) in a first service position (B2, B4) at the elevation of a machine framing (12) of the textile machine can be pivoted away from, or transversely withdrawn from the guide rail (15, 16). In accord with the invention, per side of the textile machine (10) at least two maintenance apparatuses (14a-14c) are exclusively assigned thereto, whereby the guide rail (15, 16) on the first side at least at one end of the textile machine (10) is elongated beyond the said textile machine and a second service position (A1, A3) is placed on the elongated guide rail (15-16).

Abstract: A spinning rotor of an open-end spinning device is slowed down for piecing to a low rotational piecing speed and is then accelerated to the operating speed. For this purpose, the spinning rotor or an element in driving connection with it is presented a drive transmission device from a service unit by means of which the spinning rotor can be switched from normal production speed to a reduced piecing speed and back. In this process, the drive transmission device can be driven either by a driving apparatus installed on the service unit or by a drive belt extending within spinning machine. The driving apparatus mounted on the service unit is connected to a control device for the control of the evolution of the rotational speed of the spinning rotor. The spinning rotor is driven according to a rotational speed course controlled by means of a program applied by the control device during the time when its rotational speed deviates from its operating speed.

Abstract: The invention relates to a textile machine with at least one first service unit (14a, 14b) capable of traveling along a guide rail alongside a plurality of processing stations of the textile machine, and with a control system (20a, 20b; 22) for the control of the travel movement of the service unit (14a, 14b). According to the invention the control system (20a, 20b; 22) can make data on travel path delimitations (18), predetermined return points and/or obstacles (14a-d) available, and the control system (20a, 20b; 22) controls the travel movement in function of the data of the travel path delimitations (18), the predetermined return points and/or the obstacles (14a-d).

Abstract: The invention relates to a method for the maintenance of a plurality of processing stations (13) of a textile machine (10), whereby at least one first maintenance unit (14a-d) can travel alongside the processing stations (13) in order to service and/or control the processing stations (13). According to the invention the maintenance unit (14a-d) is moved into an optimized readiness position when none of the processing stations (13) needs to be serviced and/or controlled by the maintenance unit. Alternatively, the direction of travel in which the maintenance unit (14a-d) is to travel to the next processing station (13) in need of service is determined, whereby the direction of travel depends on the totality of processing stations in need of maintenance. In addition it is ensured that the maintenance unit (14a-d) is able to perform an already previously performed maintenance task on a processing station (13) when routine maintenance is imminently expected.

Abstract: A process and apparatus are provided for controlling components of individual work stations of a textile machine wherein the textile machine includes a plurality of adjacent such work stations. The work station components are run at a first speed during normal operation. A time period is established at the start of a voltage loss to the components. At the conclusion of this time period, the components are shut down. The components assume a second set speed as they run down during the time period beginning at the start of the voltage loss. Upon the voltage loss, an auxiliary current source is activated and the speed of the components which are supplied with auxiliary voltage from the current source is reduced in a controlled manner with the aid of a control program.

Abstract: The invention relates to a method for the control of the travel movement of at least one service unit (41a-14d) at a rotor-spinning machine (10), whereby the (at least one) service unit services and/or controls an operating zone (A, B, A′, B′) assigned to it containing a plurality of processing stations of the textile machine. According to the invention the service unit (14a, 14b) is moved in the direction of its assigned operating zone (A′, B′) when the detected position is located outside the assigned operating zone. In addition, the size of the operating zones (A, B) is determined in function of the workload of the service units (14a, 14b) and/or of the work efficiency of the service units.

Abstract: A roller for drafting equipment of a spinning mill machine with an oblong cylindrical base body (102) is claimed characterized in that a hollow space (106) is provided in the base body (102). In this manner the heat transfer from the roller bearing via the base body to a roller covering on the base body can be reduced considerably. Under another aspect of the invention a roller with an oblong cylindrical base body provided with an outer roller covering essentially surrounding the circumference of the base body, whereby at least one thermally insulating layer is installed between the base body and the roller covering, serves the same purpose. In addition the invention also comprises a spinning mill machine with at least one such roller as well as a corresponding process.

Abstract: The rotor cover (2) of an open-end spinning machine possesses a projecting cover cap (3) with a side recess (4), which, on its end remote from the rotor cover is bordered by a collar (40). This possesses both in the partial zone of its circumferential area containing the collar (40), and in the remaining circumferential zone, essentially the same outer contour. The recess (4) begins, relative to the direction of rotation (f) of the spin rotor 1, between 30° and 130° after the discharge opening (50) of the fiber feed conduit (5) and ends at a section of the of the wall (51) protruding from the radial surface (20) of the rotor cover (2). The recess (4) extends to a radial surface (20) of the rotor cover (2) which radial surface (20) covers the open side of the spin rotor.

Abstract: A maintenance carriage (2) of a textile machine (1) is comprised of a chassis (3) for travel along a plurality of like workstations (10) and a robot (4). The Robot is so placed on the chassis that it can be brought into an inspection position (I) from a service position (W) transverse to the travel direction of the chassis and subsequently returned too the service position. In its inspection position the robot creates a traversable passage (P) with a width which is at least 40 cm between the textile machine and itself. In its service position, the robot is secured in relation to the chassis with the aid of a locking mechanism. On each longitudinal machine side (A,B), the textile machine exhibits a separate running rail (14, 140) which possesses no connection with the running rail of the other longitudinal machine side and said running rail accommodates at least one maintenance carriage.

Abstract: The invention concerns an open-end spin-rotor with a shaft (1), on the free end of which a support cap (7d) can be attached, a support cap for this service as well as a procedure for the manufacture of an open-end spin rotor. In accord with the invention, the open-end spin-rotor is improved in such a manner, that the shaft (1) possesses an alignment surface (5, 6) on the end face and the support cap (7d) exhibits a counter alignment surface (9, 10) for the alignment of said support cap (7d) relative to a plane disposed perpendicular to the rotor axis and/or an inclined alignment surface for the alignment and coaxial centering of the support cap on the shaft (1).

Abstract: An Apparatus is described for the propagation of the rotary twisting of an open-end yarn from a yarn section in a thread guide to the entwinement point of an open-end spinning apparatus with a spinning element. A provision is made in the longitudinal extent of the thread guide for a thread contact surface, to which surface a vibration element is supplied. The thread contact surface possesses a polished surface and is part of an inlet element on the thread inlet end of the thread guide. The vibration element is connected to a control system, with the aid of which the frequency and/or the amplitude of the vibration generated by the vibration element can be made to match the current operational phase.

Abstract: A process for the level adjustment of the can plate (14) of a spinning can (10, 100) is proposed which is in a filling position at the output of a textile machine to be filled with fiber sliver F, whereby the can plate (14) is moved before the start of the filling process by a first moving device 17 from a lower can plate position into a higher can plate position and is moved into the lower can plate position during the filling of the spinning can (10, 100). The process according to the invention is characterized in that the can plate (14) is moved before the start or during the starting phase of the filling process by a second moving device (9; 109) from the higher can plate position into an upper filling position as the spinning can (10, 100) is in filling position. Furthermore a suitable apparatus is presented.

Abstract: In a spinning machine with at least one spinning station possessing a feed drum, driven by a single drive, a disintegrator, a rotor, a withdrawal roll and a spool roll, provisions have been made that the spinning station has an additional single drive respectively for the withdrawal roll and/or the spool roll and/or a paraffin roll. The speed of rotation ratio of the single drives can be preset to specified values.

Abstract: An open-end spinning apparatus has a spin rotor (1) which, by means of its shaft (11) is supported by support plates (4), wherein as an abutment for the axially directed force on the spin rotor (1), an aerostatic axial bearing (6) is provided. The bearing surface (115) of the spin rotor (1) operates together with a bearing plate (63) of the axial bearing (6). The bearing surface (115) or the bearing plate (63) are comprised of a construction material of polyimide. Advantageously, the polyimide is combined with an additive, namely graphite, for instance.

Abstract: A fleece funnel is provided which is placed at a predetermined distance behind the output rolls of the stretch works of a textile machine, particularly a carding machine. The longitudinal side of the funnel is laterally closed by a baffle plate. The baffle plate borders a bulged impact plates, which, at the deepest part of the bulge possess an outlet opening for the reception of a funnel duct. The impact plates form an intersection line with a ramp located oppositely to the baffle plate. On the impact plate from any optional point of the intersection line, a decline is defined to the exit-opening of the funnel.