Surface winder and method
AssigneePaper Converting Machine Company
InventorsJames E. Hertel, Gerry Buxton
Life of this patent
Estimating the term…
Abstract
A surface winder and method in which a stationary upper winding roll, a lower movable winding roll and a rider roll form a three roll cradle, the lower winding roll being reciprocated to control the position of a partially wound core until the rider roll returns to cradle position after permitting passage of a previously wound log and in which a compensator roll is provided to control web slack after cutoff and transfer.
Claims14
A surface winder for developing a web log comprising a frame, means operatively associated with said frame for advancing a web along a predetermined path in said frame,
- a stationary winding roll rotatably mounted in said frame on one side of said path,
- stationary finger means mounted on said frame on the other side of said path adjacent said stationary winding roll and spaced therefrom a distance sufficient to receive a core to be wound in said path, said stationary winding roll cooperating with said stationary finger means to rotate said core,
- a movable winding roll rotatably mounted in said frame on the other side of said path and downstream in the direction of web advance from said stationary finger means and forming a nip with said stationary winding roll,
- means on said frame for reciprocating said movable winding roll relative to said stationary winding roll from a first position precluding passage of a partially-wound log through said nip to a second position permitting passage of said partially wound log through said nip.
A surface winder for developing a web log comprising a frame, means operatively associated with said frame for advancing a web along a predetermined path in said frame,
- means on said frame in said path for receiving a glue-equipped core to be wound and for cutting off said web and transferring the leading edge portion of the cutoff web to a core,
- draw roll means on said frame in said path upstream of said receiving means, and
- gathering means on said frame between said draw roll means and receiving means for taking up web slack beginning to develop upon cutoff and transfer of said web to said core and gradually releasing the gathered web during the ensuing winding cycle,
- said receiving means including stationary plate means and winding roll means spaced on opposite sides of said path a distance apart sufficient to receive said core, said stationary winding roll means cooperating with said stationary plate means to rotate said core, said gathering means including a compensator bar pivotally mounted on said frame on one side of said path.
A method of winding a web on a core to develop a wound log comprising advancing a web along a predetermined path, positioning a glue-equipped core in contact with said web and substantially simultaneously therewith cutting off said web, winding the web upstream of the cutoff on said core between spaced apart stationary finger means and a first winding roll positioned on opposite sides of said path, advancing said core during winding thereof along said path toward a valley defined by said first winding roll on one side of said path and said stationary finger means and a second winding roll on the other side of said path, while said core is moving toward said valley removing a previously wound core from contact with said first and second winding rolls,
- and thereafter during winding moving said second winding roll away from said first winding roll to increase the spacing between said winding rolls to permit a partially wound log to pass between said winding rolls.
Dependencies are inferred from the claim text.