Web winding machine and method
AssigneePaper Converting Machine Company
InventorJohn J. Bradley
Life of this patent
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Abstract
A surface winder is provided for developing rolls of web materials wound on a core including a magazine for dispensing cores sequentially and a nip for receiving cores sequentially, the core transport means between said source and nip arranged to follow a generally hypocycloidal path to provide cusps for adhesive application to the core and for introducing cores into the nip, a surface winder including a pair of winding belts traveling at different speeds and in different directions, and web severance means including a pair of web pinching points one of which is on the moving web and the other on a stationary part of the web.
Claims25
A method of surface winding a web on a core comprising
- advancing the leading edge of a web into a nip provided by upper and lower belt systems operating in opposite directions at different speeds,
- introducing a pre-glued core into said nip substantially simultaneously with said leading edge, and
- rotating said core about the axis thereof under the influence of and engagement with said belt systems to wind said web onto said core, moving said core perpendicular to its axis from start of wind to end of wind while maintaining said belt systems in diverging relation to accommodate the increase in diameter of the roll being wound, the engagement of said belt systems with said core constituting the sole means for rotating and moving said cores.
A surface winder for winding a web on a core comprising a frame defining a web path having an entering end and a discharge end, a first belt system on said frame extending along one side of said path and having a roll adjacent the path entering end,
- means on said frame cooperating with said first belt system roll in defining a core insertion nip,
- a second belt system on said frame extending along the other side of said path and being divergently related to said first belt system to accommodate build-up of web on the core,
- means for driving said first belt system faster than and in a direction opposite to said second belt system so as to rotate a core about its axis to wind a web thereon and advance a core perpendicular to its axis from start of wind to end of wind, said belt systems constituting the sole means for rotating and advancing said cores and
- means for introducing a preglued core into said path.
A surface winder comprising a frame, a first belt system on said frame, a second belt system on said frame divergently related to said first belt system to provide a core receiving nip smaller than a wound roll discharge, means for driving one belt system faster than and in a direction opposite to the other so as to rotate a core about its axis to wind a web thereon and advance a core perpendicular to its axis from start of wind to end of wind, said belt system constituting the sole means for rotating and advancing said cores, and means operably associated with said belt systems for introducing into said nip a web and a pre-glued core.
Dependencies are inferred from the claim text.