Sheet slitter-winder
AssigneeKataoka Machine Co., Ltd.
InventorsHiroshi Kataoka, You Kataoka
Life of this patent
Estimating the term…
Abstract
A sheet slitter winder that uses a sheet slitter to slit a wide sheet into a plurality of sheets of predetermined width, and winders to wind the slit sheets onto winding cores. Touch rollers contact the winding rolls. Temporary sheet-holding means have a sheet-retaining plate that can be contacted with and separated from the touch rollers and can temporarily hold a slit sheet against an outside peripheral surface of a touch roller at a point upstream of a point of contact between a touch roller and a roll. Cutting means are used to cut widthwise across the slit sheets thus held in place.
Claims33
A sheet slitter-winder, comprising:
- a sheet slitter that slits a wide sheet into a plurality of sheets of predetermined width;
- winders that wind the sheets slit by the slitter onto winding cores to form rolls, and each have touch rollers that contact the rolls;
- provisional sheet-holding means each having a sheet-retaining plate that can be contacted with and separated from a touch roller 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 at a point upstream of a point of contact between each touch roller and each roll;
- and
- cutting means that can cut widthwise across the slit sheet held against the touch roller by the front edge of the sheet-retaining plate, downstream from the point of contact between each touch roller and each roll.
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 winder 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 the first and second winders, each holding means being movable toward and away from a base of a valley formed by each core and each touch roller or the common touch roller at start of winding, 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 a 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;
- and
- cutting means that can cut widthwise across the slit sheet held against a touch roller by the front edge of the sheet retaining plate, downstream from the point of contact between each touch roller or the common touch roller and each roll.
Dependencies are inferred from the claim text.