Patent ID: 7100657
Filing Date: 2006-09-05
Classification: B65H,Y10T

Abstract:
1. A sheet slitter-winder, comprising: a sheet slitter that slits a wide sheet into a plurality of sheets of predetermined width; first and second winders which wind the sheets slit by the slitter onto rotating winding cores to form rolls and between which winding of the slit sheets is alternated; each of said first and second winders comprising a winding base, a pair of winding arms provided for a core and mounted on the winding base, a pair of core chucks provided for the pair of winding arms and touch rollers contacting each roll or a common touch roller contacting all rolls; said winding arms being disposed at positions changeable in a lengthwise direction of each core; said core chucks being detachably attachable to ends of each core to align the cores along a common center axis; provisional sheet holding means provided for each of said first and second winders; each of said provisional sheet holding means being movable toward and away from a bottom of a valley formed by each core and each touch roller or the common touch roller, including a holding bar that extends parallel to the wide sheet across a full width of the wide sheet and a sheet-retaining plate that is attached to the holding bar in a state sticking out toward the bottom of the valley, and enabling a front edge of the sheet-retaining plate to temporarily hold a slit sheet against an outside peripheral surface of a touch roller or the common touch roller at a point upstream of a point of contact between each touch roller or the common touch roller and each roll when bringing the holding bar to the valley during winding being stopped; cutting means that can cut widthwise the slit sheet held against a touch roller by the front edge of the sheet-retaining plate downstream from the point of contact between the sheet-retaining plate and each touch roller or the common touch roller; adhesive application mechanisms for applying adhesive for attaching to a portion of a fresh winding core retained at opposite ends by the core chucks, which portion faces the touch roller, a distal end of the slit sheet cut by the cutting means and retained relative to the touch roller by the sheet-retaining plate; each of said adhesive application mechanisms comprising an adhesive applicator that includes a pasting head for applying the adhesive to a portion of a surface of the winding core that faces the touch roller, a container that contains adhesive for replenishing the pasting head and advancing and withdrawing means for advancing the pasting head to a position of contact with the winding core and withdrawing the pasting head to a retracted position, a guide that guides the adhesive applicator in an axial direction parallel to the winding core and a reciprocating drive that can move the adhesive applicator along the guide, said pasting head comprising an application roller that is enabled to roll on the surface of the winding core in a longitudinal direction of the winding core, a guide pulley that is positioned in the container to be steeped in the adhesive contained in the container and an endless belt that is mounted between the guide pulley and the application roller.