Winding device
OwnerMarcel Siegenthaler, Christian Sporri +1inventors
InventorsMarcel Siegenthaler, Christian Sporri, Werner Graber
Life of this patent
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Abstract
In a lap winding apparatus for producing a batt lap, the batt is wound onto a tube which is rotatable about a fixed axis and is driven by a revolving endless belt. The belt is arranged in a loop, formed between two deflecting rolls and is tensioned by a tensioning device. The tube which is rotatable about a fixed axis, as well as the two deflecting rolls are dimensioned, and positioned relative to each other, in such a manner that the loop at the beginning of the lap winding process embraces the tube over an initial minimum wrapping angle equal to, or larger than, 120° and preferentially equal to, or larger than, 180°. For generating a tensioning force depending on the lap diameter, the tensioning device is associated with a control device.
Claims28
A lap winding apparatus comprising
- a core rotatably mounted on a fixed axis for winding of a lap thereon;
- a pair of rotatable deflecting rolls parallel to said core;
- an endless belt guided over said rolls and said core for driving said rolls and said core, said belt forming a loop between said rolls and about said core to effect winding of a lap onto said core;
- a tensioning roll having said belt looped thereover, and
- a linear guide arrangement for moving said tensioning roll in a rectilinear path between an extended position relative to said core and a retracted position relative to said core, said extended position corresponding to an initial position of said core without a lap thereon and said retracted position corresponding to a position of said core with a lap wound thereon.
A lap winding apparatus comprising
- a core rotatably mounted on a fixed axis for winding of a lap thereon;
- a pair of rotatable deflecting rolls parallel to said core;
- an endless belt guided over said rolls and said core for driving said rolls and said core, said belt forming a loop between said rolls and about said core to effect winding of a lap onto said core;
- a tensioning roll having said belt looped thereover, and
- a tensioning device for moving said tensioning roll between an extended position relative to said core and a retracted position relative to said core, said extended position corresponding to an initial position of said core without a lap thereon and said retracted position corresponding to a position of said core with a lap wound thereon.
Dependencies are inferred from the claim text.