Apparatus for making single or multi-size, fold, and color product stacks
First Claim
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1. Apparatus for producing folded products simultaneously from a plurality of different colored webs or materials to form stacks of product having color or material sequences therein, comprising:
- a pair of frames to support;
means to slit webs into product width webs, means to longitudinally fold product webs, a plurality of web feed metering roll pairs, a plurality of web cutoff units each including a knife roll and an anvil roll for cutting separate streams of spaced segments and arranged to combine said separate streams of segments to form a continuous series of segments on successive repeats on the surface of a multi-repeat common carrier, wherein;
each if said metering rolls has a surface speed slower than the surface speed of a subsequent anvil roll to slideable retard said web for cutting and transfer to a spaced repeat surface of said anvil roll, for subsequent folding and transfer to a carrier roll, said segments on spaced repeat surfaces of the anvil roll synchronized for placement on carrier repeat surfaces between segments from other of said cutoff plurality, said anvil rolls having a plurality of repeat surfaces each including vacuum means to advance and uplift a front portion of said segment and overfolding said front portion coacting in cooperation with vacuumized ports on a carrier roll advancing at equal surface speed, a carrier roll with at least one transverse line of vacuum ports between repeat surface ends to cooperatively fold and advance the combined series of segments, and, means to remove the combined series of folded segments from said carrier.
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Abstract
Apparatus for producing selected color or material sequences within a stack of transversely single or doublefolded products. Product width webs are longitudinaly folded and slideably advanced at slow speed metering rolls to create alternate void spaces before a segment is cut so that unocuppied alternate repeats on each anvil roll of the plurality can accept folded segments from other units in the plurality. With programmable changes to the same plurality of cutoff units including changes in the amount of web slippage before cutoff, several smaller product segments are cut, cooperatively folded and advanced by anvil and carrier rolls to produce different sizes within the color sequence defined by machine configuration. In another embodiment, programmable commands for selection of vacuum path, phase change of fold line, speed change to web metering roll and synchronized speed control during production vary the amount of web slippage, the resultant segment size, and folded product size within a single color stack.
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Citations
14 Claims
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1. Apparatus for producing folded products simultaneously from a plurality of different colored webs or materials to form stacks of product having color or material sequences therein, comprising:
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a pair of frames to support;
means to slit webs into product width webs, means to longitudinally fold product webs, a plurality of web feed metering roll pairs, a plurality of web cutoff units each including a knife roll and an anvil roll for cutting separate streams of spaced segments and arranged to combine said separate streams of segments to form a continuous series of segments on successive repeats on the surface of a multi-repeat common carrier, wherein;
each if said metering rolls has a surface speed slower than the surface speed of a subsequent anvil roll to slideable retard said web for cutting and transfer to a spaced repeat surface of said anvil roll, for subsequent folding and transfer to a carrier roll, said segments on spaced repeat surfaces of the anvil roll synchronized for placement on carrier repeat surfaces between segments from other of said cutoff plurality, said anvil rolls having a plurality of repeat surfaces each including vacuum means to advance and uplift a front portion of said segment and overfolding said front portion coacting in cooperation with vacuumized ports on a carrier roll advancing at equal surface speed, a carrier roll with at least one transverse line of vacuum ports between repeat surface ends to cooperatively fold and advance the combined series of segments, and, means to remove the combined series of folded segments from said carrier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Folding apparatus for producing a selected length and means to make multiple product lengths on the same machine apparatus, comprising:
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a pair of frames to suppport;
means to advance and longitudinally fold product width webs, means to advance a product web at a selected speed, cut into segments and advance them on a series of consecutive repeat surfaces of an anvil roll wherein;
said metering rolls are separately driven by a variable speed digitally controlled motor, separately adjustable and for simultaneous operation with independent drives for anvil rolls and carrier roll. said anvil roll includes vacuum ports along a plurality of transverse lines within each repeat surface of said anvil roll and means to activate a vacuum path to a selected line of said plurality. means to separately drive said anvil/knife roll couple and means to cut said web advancing at a predetermined uniform speed for placement of a segment leading edge over the selected line of ports, advancement, and folding in cooperation with a carrier roll, said carrier including vacuum ports along a transverse fold line within each repeat surface, and separate motor means for retarding the fold line ports to be operative at a pre-selected location for the cross fold, means to rotate said carrier simultaneously with said anvil roll, and means to remove said folded product from the carrier path.
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Specification
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Current AssigneeWilliam P. Niedermeyer
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Original AssigneeWilliam P. Niedermeyer
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InventorsNiedermeyer, William P.
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Application NumberUS10/356,938Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current493/428CPC Class CodesB65H 2301/22 of material of different ch...B65H 45/28 Folding in combination with...
