Method, reel device and computer program for operating the reel device

A method for operating a reel device (100),

• wherein the reel device comprises a reel mandrel (120) for winding up a strip (20),
• wherein the reel mandrel (120) has a segment (124) arranged at a perimeter of the reel mandrel (120), the segment (124) being joined via at least two link plates (125, 126) to a control rod (122) that can be axially moved in the reel mandrel (120), for radially moving the segment (124) into an operating position (P1, P2, P3), and
• wherein the reel mandrel (120) comprises a compression spring unit (150) for holding the segment (124) under a radial preload (FD),
• the method comprising:
• a) moving the segment (124) into the operating position (P1, P2, P3) multiple times during a service life of the reel device (100), in each case under the radial preload (FD), and thereby subjecting the link plates (125, 126) and/or the control rod (122) to wear;
• b) directly or indirectly determining and recording a radial distance (A1, A2, A3) of the segment (124) in the operating position in relation to a stationary reference position (P0) at different points in time during the service life;
• c) evaluating the radial distances (A1, A2, A3) recorded at the different points in time in terms of whether they exceed a predefined upper threshold value (S1, S3) or fall below a predefined lower threshold value (S2) during the service life of the reel device (100);
• and
• d) indirectly identifying a wear condition of the reel device (100) when the radial distances (A1, A2, A3) exceed the upper threshold value (S1, S3) or fall below the lower threshold value (S2) starting at one of the points in time.

A reel device (100), comprising:

• a reel mandrel (120) for winding up a strip;
• a rotary drive device (130) for driving the reel mandrel (120) in rotation for a coiling operation of the reel device (100);
• a push/thrust drive (110) for axially moving a control rod (122) in the reel mandrel (120);
• a control device (140) for controlling the rotary drive device (130) and the push/thrust drive;
• a segment (124) arranged radially expandable on a perimeter of the reel mandrel (120);
• at least two link plates (125, 126) connecting the segment (124) to the control rod (122) for radially extending and retracting the segment (124) into at least one operating position in accordance with a respective axial movement position of the control rod (122);
• at least one compression spring unit (150) arranged between the segment (124) and the control rod (122) for holding the segment (124) under a radial preload;
• a distance sensor (160) for the multiple direct or indirect determination of the radial distance (A1, A2, A3) of the segment (124) in the at least one operating position (P1, P2, P3) relative to a stationary reference position (P0);
• and
• a recording device (170) and an evaluation device (180) for recording and evaluating a plurality of the measured distances (A1, A2, A3) in terms of their change during a service life of the reel device (100) with regard to whether the measured radial distances (A1, A2, A3) exceed a predefined upper threshold value (S1, S3) or fall below a predefined lower threshold value (S2) over a course of time.