公开(公告)号：WO2020254978A1

公开(公告)日：2020-12-24

申请号：PCT/IB2020/055644

申请日：2020-06-17

Applicant: MASCHINENFABRIK RIETER AG

Inventor： MORAVEC, Milan ,  BROZEK, Tomás

IPC: D01H1/40 ,  B65H51/16 ,  B65H54/26 ,  D01H15/013 ,  B65H67/08

Abstract: The invention is directed to a suction device for suction and transport of yarn (1) for a service robot for a yarn manufacturing textile machine. The suction device comprises a suction tube (0), provided with a front opening (02) and a rear opening (01) that are fluidically interconnected with each other by an inner conduit (03). A suction mouth (00) is arranged at the front opening (02) and a first vacuum ejector (3) is fluidically connected to the inner conduit (03). The first vacuum ejector (3) is adapted to generate a pressure gradient between the suction mouth (00) and the rear opening (01) for conveying an air flow through the suction mouth (00) via the suction conduit (000) to the inner conduit (03). At least one yarn twist retaining element (9) is arranged in the inner conduit (03) between the suction mouth (00) and the first vacuum ejector (3).

公开(公告)号：WO2020254954A1

公开(公告)日：2020-12-24

申请号：PCT/IB2020/055608

申请日：2020-06-16

Applicant: MASCHINENFABRIK RIETER AG

Inventor： MORAVEC, Milan ,  BROZEK, Tomás ,  SEMRÁD, Petr

IPC: D01H15/013 ,  D01H9/10 ,  D01H13/00

Abstract: The invention is directed to a service robot (1) for a ring spinning machine for yarn production having a vertical frame (12) which is provided with a first vertical linear guide (120) and a second vertical linear guide (121). On the first vertical linear guide (120) a vertically reversibly displaceable 3D yarn handling device (13) and a vertically reversibly displaceable yarn threading device (16) are arranged and interconnected with a controllable drive and a control device (2). On the second vertical linear guide (121) a vertically reversibly displaceable cop handling device (14) and a vertically reversibly displaceable yarn end searching device (15) are arranged and interconnected with a controllable drive and a control device (2).

公开(公告)号：WO2020058775A1

公开(公告)日：2020-03-26

申请号：PCT/IB2019/055152

申请日：2019-06-19

Applicant: MASCHINENFABRIK RIETER AG

Inventor： KAPPELER, Hanspeter ,  MORAVEC, Milan

IPC: D01H15/013

Abstract: It is disclosed a method of operating a service robot (9) of a ring spinning machine (1), which is displaceable along a row of spinning units (2) of the ring spinning machine (1). Each spinning unit (2) comprises a spindle (8), wherein the service robot (9) can be stopped at a specific spinning unit (2) in order to perform a service operation at the spinning unit (2); The method comprising the steps of storing in a memory (100, 200) different sets (A, B, C) of setting parameters (e, f, g) for the service robot (9), which set-ting parameters (e, f, g) depend on yarn characteristics and characteristics of the ring spinning machine (1); choosing a specific yarn to be produced on the spinning machine(1); and applying one of the sets (A, B, C) of setting parameters (e, f, g) to the service robot (9) according to the chosen yarn to be produced and the ring spinning machine (1) for use during the service operation. The invention as well related to a corresponding ring spinning machine.