Back to results
US 8,042,324 B2Granted
Apparatus and method for winding a roving onto a bobbin
AssigneesMaschinenfabrik Rieter AG, Faserforschung Denkendorf
InventorsChristian Griesshammer, David Gehring, Fabian Lehner, Pascal Marti
Life of this patent
Estimating the term…
Abstract
The invention relates to an apparatus for winding a roving provided with a protective twist onto a roving bobbin, containing a bobbin mounting for the rotatable mounting of a roving bobbin and a traversing device for traversing in the bobbin axial direction the roving to be wound. The traversing device comprises a driven pair of winding delivery rollers arranged directly in front of the roving bobbin and having a nip line through which the roving to be wound is guided.
Claims16
An apparatus for winding a roving onto a roving bobbin, comprising:
- a twist-generating device, and a pair of take-off rollers downstream of said twist-generating device;
- a bobbin mounting configured for rotation of a roving bobbin;
- a roving laying device configured for laying the roving onto said roving bobbin;
- said take-off rollers disposed upstream of said roving laying device;
- said roving laying device further comprising a pair of winding delivery rollers with at least one of said winding delivery rollers being a driven roller, said winding delivery rollers disposed directly adjacent to said roving bobbin and defining a nip line through which the roving travels as it traverses along an axial direction of said roving bobbin as the roving is wound onto said roving bobbin, said winding delivery rollers;
- and
- wherein rotational speed of said winding delivery rollers is regulated to achieve a controlled specific tension in the roving laid on said roving bobbin.
4 more elements
An apparatus for winding a roving onto a roving bobbin, comprising:
- a bobbin mounting configured for rotation of a roving bobbin;
- a roving laying device configured for laying the roving onto said roving bobbin;
- said roving laying device further comprising a pair of winding delivery rollers with at least one of said winding delivery rollers being a driven roller, said winding delivery rollers disposed directly adjacent to said roving bobbin and defining a nip line through which the roving travels as it traverses along an axial direction of said roving bobbin as the roving is wound onto said roving bobbin;
- a pressure roller disposed to bear against said roving bobbin, said pressure roller configured on a pivotal first guide so as to move with increasing size of said roving bobbin, said winding delivery rollers also operably configured on said pivotal first guide so as to also move with said pressure roller as said roving bobbin increases in size;
- and
- wherein one of said winding delivery rollers is a pressure roller that is rotatably mounted on a second guide, said second guide pivotably mounted to said first guide.
3 more elements
An apparatus for winding a roving onto a roving bobbin, comprising:
- a bobbin mounting configured for rotation of a roving bobbin;
- a roving laying device configured for laying the roving onto said roving bobbin;
- said roving laying device further comprising a pair of winding delivery rollers with at least one of said winding delivery rollers being a driven roller, said winding delivery rollers disposed directly adjacent to said roving bobbin and defining a nip line through which the roving travels as it traverses along an axial direction of said roving bobbin as the roving is wound onto said roving bobbin;
- a drafting arrangement having at least one pair of main drafting rollers, a pair of exit rollers downstream of said main drafting rollers, a twist-generating device downstream of said exit rollers, and a pair of take-off rollers downstream of said twist-generating device, said take-off rollers disposed upstream of said roving laying device;
- respective drives for said drafting arrangement, said take-off rollers, said winding delivery rollers, and said roving bobbin, said respective drives operably connected to a common control loop;
- and
- wherein one of said respective drives is a master drive motor and the remaining respective drives are slave drive motors wherein control of said slave drive motors via said common control loop is a function of said master drive motor, and wherein said drive motor for said winding delivery rollers is one of said slave drive motors.
4 more elements
Dependencies are inferred from the claim text.