公开(公告)号：US20180237962A1

公开(公告)日：2018-08-23

申请号：US15751101

申请日：2016-08-01

Applicant: PICANOL

Inventor： Dirk Sampers ,  Chris Noppe ,  Emmanuel Delboo ,  Sven Cafmeyer ,  Marc Adriaen

IPC: D03C13/00 ,  D03C9/06

CPC classification number: D03C13/025 ,  D03C9/0683 ,  D03C2700/0127 ,  D03C2700/0133 ,  D03C2700/0183

Abstract: A drive mechanism for driving a heald frame (1) of a weaving machine, the drive mechanism (2) comprising a sensor device (20), wherein the sensor device (20) comprises at least three members comprising both a target set with one or more targets (21, 22) and a detector set with one or more detectors (23), wherein one of the detector set and the target set is arranged at the swivel lever (6) and the other one is arranged stationary on the weaving machine, wherein targets (21, 22) of the target set and/or detectors (23) of the detector set have different characteristics for generating a first signal (24) when approaching the measuring position from the upper position or when departing from the measuring position towards the upper position and for generating a second signal (25) when approaching the measuring position from the lower position or when departing from the measuring position towards the lower position, wherein the second signal (25) differs from the first signal (24). A method for detecting the presence of a swivel lever (6) of a drive mechanism (2) for driving a heald frame (1) of a weaving machine in a measuring position.

公开(公告)号：US20180291537A1

公开(公告)日：2018-10-11

申请号：US15754225

申请日：2016-08-01

Applicant: PICANOL

Inventor： Dirk Sampers ,  Chris Noppe ,  Emmanuel Delboo ,  Sven Cafmeyer ,  Marc Adriaen

IPC: D03C13/00 ,  D03C9/06

Abstract: A drive mechanism for driving a heald frame (1) of a weaving machine, the drive mechanism (2) comprising a crank (3) rotating about a crank axis (4), a coupling rod (5), and a swivel lever (6) having a first arm (8) and a second arm (9), wherein the coupling rod (5) is linked to the first arm (8) of the swivel lever (6) by a second hinged joint (17) adjustable with respect to the first arm (8) of the swivel lever (6), wherein in all intended locations of the second hinged joint (17) with respect to the first arm (8) of the swivel lever (6), the second hinged joint (17) is situated on an arc of an imaginary circle (19) when the swivel lever (6) is in a central position between the upper position and the lower position, wherein the imaginary circle (19) has a radius (R) that is equal to the distance (L) between the first hinged joint (16) and the second hinged joint (17), and the imaginary circle (19) has a center (33) that coincides with the crank axis (4). A method for adjusting a stroke of a heald frame (1) of a weaving machine.