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Method to Control Product Post-Fold

IP.com Disclosure Number: IPCOM000242964D
Publication Date: 2015-Sep-03
Document File: 3 page(s) / 148K

Publishing Venue

The IP.com Prior Art Database

Related People

Katie M. Nackers: AUTHOR

Abstract

This publication describes a method for transporting a folded product through a roll-based folding process, where the product is asymmetric about the folding line. Instead of employing a complicated mechanical device, this method uses vacuum zones that match the shape of the outer layer of the product to maintain control of the product after the fold.

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ABSTRACT

                This publication describes a method for transporting a folded product through a roll-based folding process, where the product is asymmetric about the folding line.  Instead of employing a complicated mechanical device, this method uses vacuum zones that match the shape of the outer layer of the product to maintain control of the product after the fold.  

INTRODUCTION

                For certain roll-based product folding sequences, a product is folded, then transported to a secondary station where the product fold registration is fixed through fastening or bonding means.  During the transportation phase of the operation, the front and back portions of the product can become out of phase.  This is because traditionally a product is held in place with vacuum, and when a product is folded over on itself, with typical material permeability and operational speeds, the outer portion of the product does not receive enough vacuum pressure through the inner portion to maintain control.  Other devices rely on complicated mechanical devices to maintain the fold.  A new method is proposed that will utilize zoned vacuum to maintain fold integrity without a complicated mechanical device.

METHODOLOGY

                If a product is designed such that the front and the back portions are not symmetrical as shown in Figure 1, an apparatus can be designed to optimally control both portions of the product after the fol...