US 4,695,005 AGranted

Coreless winder for strips of pliable material

AssigneeCustom Machinery Design, Inc.

InventorPeter J. Gietman, Jr.

Life of this patent

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Abstract

A winder for making coreless rolls of pliable sheet material, such as plastic, cloth or paper, includes a cut-off section for severing a continuous strip of feed material to the desired length and a conveyor system downstream thereof. A portion of the conveyor is pivotable between a first and second position to feed spaced-apart winding rod assemblies. The rod assemblies each include a pair of elongate, spaced-apart rods and a mechanism for rotating the pair of rods to wrap the feed material into a coreless roll. The rod assemblies also include a system for collapsing one of the two rods toward the other when the winding of the roll is completed and it is desired to dispense the coreless roll. A finger mechanism is also provided for properly orienting the pair of rods to receive the leading end of the pliable material. By employing multiple winding assemblies and the pivotable conveyor system, the speed of the winder can be substantially increased. The present invention is especially suitable for the winding of rolls of dropcloth or other cover-sheet materials.

Claims12

Dependent claims

A winder for winding elongate strips of pliable material, such as plastic film, cloth or paper, into coreless rolls, said winder including:

cut-off means for forming strips of pliable material of a preselected length;
conveyor means for conveying said strips of pliable material from said cut-off means;
at least two winding assembly means for winding said strips of pliable material into coreless rolls;
said conveyor means consisting of a first extended stationary portion, immediately adjacent said cut-off means and having top and bottom conveying surfaces forming a nip for accepting a leading edge of said strip of pliable material from said cut-off means, and a second movable portion for alternately directing said stips of pliable material to different ones of said winding assembly means;
means for driving said conveyor means;
means for driving said winding assemblies
wherein said movable portion of said conveyor means comprises an outlet formed by the ends of said top and bottom conveying surfaces, said winder including a first cylinder means having an extensible piston rod means, said rod means being coupled to said conveyor outlet for moving said outlet from a first position in which said outlet is disposed adjacent a first one of said winding assemblies to at least another position in which said outlet is located adjacent another of said winding assemblies
wherein said stationary portion and said movable portion of said conveyor means comprise a plurality of pairs of roller means spaced between said cut-off means and said outlet, said pairs of roller means including a top roller and a bottom roller, single endless means surrounding the top rollers to provide a top conveyor surface and single endless means surrounding the bottom rollers to provide a bottom conveyor surface, whereby pliable material passing into said nip and between said conveyor surfaces is conveyed through said conveyor means.

5 more elements

A winder for winding elongate strips of pliable material, such as plastic film, cloth or paper, into coreless rolls, said winder including:

cut-off means for forming strips of pliable material of a preselected length;
conveyor means for conveying said strips of pliable material from said cut-off means;
at least two winding assembly means for winding said strips of pliable material into coreless rolls;
said conveyor means including a movable portion for alternately directing said strips of pliable material to different ones of said winding assembly means;
means for driving said conveyor system;
means for driving said winding assemblies;
wherein each of said winding assemblies includes:
a pair of generally parallel and spaced-apart elongate rod means, and wherein said means for driving said winding assemblies comprises means for rotating said pair of rod means to wind said pliable material around said pair of rod means;
and
means for periodically reducing the space between said pair of rod means and means for removing rolls of pliable material from the pair of rod means when said space therebetween has been reduced;
and
wherein said space reducing means comprises a first one of said rod means which is rigidly secured to a rotatable support means of said winding assembly, the second one of said rod means coupled to an axially movable component of said rotatable support means, cylinder means on said winding assembly having a piston rod extensible therefrom and retractable therein, link means coupling said support means and said movable component, said piston rod being adjacent said movable component whereby extension of said piston rod from said cylinder means causes said space between said rod means to be reduced.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/733,045Filed 13 May 1985
Granted: 22 Sep 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B65H 19/2276
In winding mechanisms or in connection with winding operations: the web roll being driven by a winding mechanism of the coreless type
B65H 19/2207
In winding mechanisms or in connection with winding operations: the web roll being driven by a winding mechanism of the centre or core drive type
B65H 2701/1846
Wound packages: parts concerned
Y10T 83/4711
With means to render cutter pass[es] ineffective: with means to produce "mis-cut"