Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1997-05-30
1998-04-07
Mansen, Michael
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 18DD, B65H 5414
Patent
active
057354731
ABSTRACT:
A method for avoiding ribbon windings in the winding of a cross-wound bobbin or cheese includes driving the cheese with a drive drum having reversing thread grooves for yarn guidance. A circumferential speed of the drive drum is continuously varied. The cheese is accelerated with the drive drum so that the cheese follows a course of motion of the drive drum with slip. A rotary speed of a drive motor is monitored with a winding station computer. The drive drum is driven with the motor acting as a moment adjuster in terms of control technology. A command value specification of a current is fed to a current regulator through the winding station computer for accelerating the drive drum with a constant preselectable moment and for braking the drive drum with another constant preselectable moment, for generating the slip between the cheese and the drive drum being varied for preventing a match in a rotary speed ratio between the drive drum and the cheese that causes ribbon windings. An apparatus for winding cross-wound bobbins or cheeses includes a drive drum acting as a drive mechanism for cheeses and having reversing thread grooves for yarn guidance and for laying a yarn. A drive motor drives the drive drum and acts as a moment adjuster in terms of regulating technology. A winding station computer is connected to the drive motor for monitoring a rotary speed of the drive motor.
REFERENCES:
patent: 4296889 (1981-10-01), Martens
patent: 4325517 (1982-04-01), Schippers et al.
patent: 4377263 (1983-03-01), Guelpa
patent: 4696435 (1987-09-01), Hermanns
patent: 4798347 (1989-01-01), Schippers et al.
patent: 4805844 (1989-02-01), Hermanns et al.
patent: 4828191 (1989-05-01), Ruge et al.
patent: 4986483 (1991-01-01), Ryu et al.
patent: 5035370 (1991-07-01), Hermanns
Hermanns Ferdinand-Josef
Hoffmann Ralf
Greenberg Laurence A.
Lerner Herbert L.
Mansen Michael
W. Schlafhorst AG & Co.
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