Winding mechanisms with friction drive rollers
AssigneeBarmag Barmer Maschinenfabrik AG
InventorsHeinz Schippers, Erich Lenk
Life of this patent
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Abstract
A winding mechanism with a friction drive roller for driving the winding package; at least one peripherally tapered, friction drive wheel inside the friction drive roller for rotatably driving same at variable speeds, the variation of which is obtained by axial shifting of the friction drive roller and its support; cam control means for attaining the axial shifting with increasing diameter of the winding; and the friction drive inside the roller being disengageable upon movement of the roller at right angles to its axis of rotation.
Claims11
A winding mechanism comprising a hollow drive roller, bobbin bearing means rotatably supporting a bobbin for winding thread or the like when the bobbin or the thread wound thereon is driven in frictional contact with said drive roller, drive roller support means with said roller rotatably mounted thereon, said support means including means for shifting said roller in the axial direction of said roller and additional means allowing said drive roller to move perpendicularly to its axis of rotation, a drive shaft extending axially inside said roller, variable speed friction drive wheel means inside said roller and coupling said drive shaft and said drive roller for rotating said drive roller at stagelessly variable drive output ratios in response to axial shifting of said drive roller, said friction drive wheel means being disengageable upon movement of said roller perpendicularly to its axis of rotation, and said friction drive wheel means thereby being engageable and disengageable by movement of said drive roller perpendicularly to its axis of rotation and, when engaged, having a variable drive output ratio attained by axial shifting of said drive roller.
A winding mechanism comprising a drive roller, drive roller support means with said roller rotatably mounted thereon, means for shifting said support means and said roller in the axial direction of said roller, friction drive wheel means for rotatably driving said roller at stagelessly variable drive output ratios in correspondence to the axially shifted position of said drive roller, bobbin bearing means rotatably supporting a bobbin for winding thread or the like when the bobbin or the thread wound thereon is driven in frictional contact with said drive roller, and control means responsive to the diameter of the winding formed on said bobbin for shifting said drive roller axially to change the drive output ratio.
Dependencies are inferred from the claim text.