Abstract: A spinning machine and method of operation include a plurality of adjacently arranged workstations, each workstation having one of a spinning device or a suction nozzle to which a process vacuum is applied during spinning operation. A vacuum duct extends along the workstations for supplying the spinning devices or the suction nozzles with the process vacuum. A maintenance unit is displaceable along the workstations, the maintenance unit including a pneumatic working element and a vacuum line to supply the pneumatic working element with vacuum. A closeable connection opening is at each of the spinning devices or the suction nozzles, the connection opening connected to the process vacuum. The maintenance unit includes a suction head that is advanceable toward the connection opening and is connected to the vacuum line.

Abstract: A spinning machine and method of operation include a plurality of adjacently arranged workstations, each workstation having one of a spinning device or a suction nozzle to which a process vacuum is applied during spinning operation. A vacuum duct extends along the workstations for supplying the spinning devices or the suction nozzles with the process vacuum. A maintenance unit is displaceable along the workstations, the maintenance unit including a pneumatic working element and a vacuum line to supply the pneumatic working element with vacuum. A closeable connection opening is at each of the spinning devices or the suction nozzles, the connection opening connected to the process vacuum. The maintenance unit includes a suction head that is advanceable toward the connection opening and is connected to the vacuum line.

Abstract: An open-end spinning machine and control method are provided for cleaning a spinning rotor of a spinning device in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device. With a control unit associated with the open-end spinning machine, settings are specified for the cleaning device to carry out the cleaning measure, wherein the settings are empirically determined based on one or more operational parameters of the spinning rotor. Operational parameters are stored in a memory bank associated with the control unit. The specific settings for carrying out the cleaning measure for a particular spinning rotor are automatically determined by reference to the operational parameters stored in the memory bank that are applicable to the particular spinning rotor.

Abstract: A cleaning device (1) for cleaning a rotor plate (2) of a spinning rotor (3) comprises a receptacle (6), a cleaning head (4) mounted on the receptacle (6), which can be advanced toward the spinning rotor (3) for cleaning and which includes at least one cleaning element (5, 5a, 5b), and comprising a brake device (11) for decelerating and/or holding the spinning rotor (3) once the cleaning head (4) has been advanced. The cleaning head (4) comprises an at least partially cylindrical receiving area (7) for the spinning rotor (3), which defines an axial direction (AR) and a radial direction (RR) of the cleaning head (4). The brake device (11) contains multiple, in particular two, brake elements (12), which are mounted on the cleaning head (4) in such a way that they are movable from a neutral position into a braking position, and each of the multiple brake elements (12) is movable with the aid of its own drive (13).

Abstract: In a method for cleaning a spinning rotor (4) of a spinning device (1) of an open-end spinning machine, at least one cleaning measure (RM) is carried out on the spinning rotor (4) with the aid of a pneumatic and/or a mechanical cleaning device (7), wherein settings (E), with the aid of which the at least one cleaning measure (RM) is carried out, are predefined by a control unit (24) of the open-end spinning machine. Various parameter (P) are stored in a memory bank (25). Moreover, previously empirically determined settings (E) for carrying out the cleaning measure (RM), which are suitable for the particular parameters (P), and/or rules (R) for determining settings (E) which are suitable for the particular parameters (P) are stored. The settings (E) for carrying out the at least one cleaning measure (RM) are automatically determined by the control unit (24) with the aid of the memory bank (25) depending on presently given parameters (P).

Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.

Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.