Rewinder with slitter
OwnerHiroshi Kataokainventor
Life of this patent
Estimating the term…
Abstract
A strip-like sheet is slit into a plurality of slit sheets by means of cutters. The slit sheets are distributed to a plurality of winding positions and wound on a winding axle to form a sheet roll thereof on the winding axle. A touch roller provided with a driving mechanism is provided in each of the sheet rolls to make it possible for the slit sheet to be wound while the supply tension thereof is adjusted immediately before the winding.
Claims9
A rewinder with a slitter in which a striplike sheet is unwound by an unwinding roller and slit into a plurality of slit sheets which are distributed to winding axles rotated at first and second winding positions along a base mount extending in the width direction of the unwound sheet, said winding axles are driven for rewinding by drive means capable of torque adjustment in contact with touch rollers which are driven with the torque of a motor driving said unwinding roller transmitted through a finely adjustable speed change mechanism, comprising:
- a pair of support frames provided for each predetermined slit sheet winding position and having one end slidably engaged with said base mount and the other end provided with support means for detachably supporting a touch roller;
- touch rollers each supported by said support means of said support frames and in contact with the outer periphery of a sheet roll being formed on the winding axle;
- a screw shaft extending along said base mount and penetrating said support frames for driving said touch roller;
- torque transmitting means provided on one of said support frames and having one end connected to said screw shaft and the other end connected to said touch roller;
- a driving axle extending along said base mount and penetrating said support frames for moving said support frames in the width direction of the sheet;
- a female screw rotatably penetrating and supported in said support frame and screwed on said driving axle;
- and
- engaging means provided on said support frame and engaging with said female screw.
A rewinder with a slitter in which a striplike sheet is unwound by an unwinding roller and slit into a plurality of slit sheets which are distributed to respective winding positions arranged vertically in two rows, each slit sheet being thereby wound on a winding axle held at a predetermined position with the opposite ends supported in outer frames and centrally driven, comprising:
- a plurality of touch rollers provided at each said split sheet winding position and extending parallel to said winding axle to be in contact sidewise with the outer periphery of a sheet roll being formed on said winding axle;
- a pair of upper and lower, base mounts provided between a pair of left and right inner frames movable horizontally in a direction perpendicular to the axis of said winding axle, said base mounts extending along said touch rollers;
- a pair of support frames for removably supporting said touch roller and each comprising a support base slidably engaged with the base mount and a support arm having one end thereof connected to the base mount and the other end thereof adapted to support said touch roller;
- a hydraulic cylinder provided between said support base and support arm and capable of adjustment of the urging force of the touch roller against the sheet roll;
- a drive mechanism for driving said inner frames toward said winding axle;
- drive means for detecting the growth of a sheet roll and instructing driving to said drive mechanism such as to maintain a substantially constant rotational angle of said support arm with the growth of the sheet roll being formed;
- a drive axle extending along the base mounts for driving said touch rollers, and penetrating the support base and support arm of said support frame for allowing the support base and support arm to be rotated thereabout and moved in the width direction of the strip-like sheet;
- torque transmitting means mounted on said touch rollers for transmitting the torque of said drive axle to said touch rollers;
- a motor for driving said drive axle and unwinding roller;
- and
- a speed change mechanism provided between said touch roller and said motor and capable of speed ratio adjustment.
Dependencies are inferred from the claim text.