Browse Prior Art Database

Wire Knife Stripper

IP.com Disclosure Number: IPCOM000046797D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Gasparri, AS: AUTHOR [+4]

Abstract

The present stripper requires precision adjustments and continuous sharpening of the stripping knife edge. The stripper is used in a laminator to strip MYLAR* backing. The stripper in the machine consists of a "U"-shaped bracket 10 pivoted at 12 on the lower portion of the "U" along the axis 14. The upper portion of the "U" has a wire 16 stretched across the open portion of the "U" forming the stripping source. The "U"-shaped stripper is positioned against the stripper role 18 which carries the laminated material 20 such that the wire 16 is pressed against the roll 18 and the stripped material 19 passes over and around the wire. A tension roller 26 supplies continuous tension to the stripped material 19 and leads it to a vacuum source 28 for removal from the machine.

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Wire Knife Stripper

The present stripper requires precision adjustments and continuous sharpening of the stripping knife edge. The stripper is used in a laminator to strip MYLAR* backing. The stripper in the machine consists of a "U"-shaped bracket 10 pivoted at 12 on the lower portion of the "U" along the axis 14. The upper portion of the "U" has a wire 16 stretched across the open portion of the "U" forming the stripping source. The "U"-shaped stripper is positioned against the stripper role 18 which carries the laminated material 20 such that the wire 16 is pressed against the roll 18 and the stripped material 19 passes over and around the wire. A tension roller 26 supplies continuous tension to the stripped material 19 and leads it to a vacuum source 28 for removal from the machine. The pivot 12 is positioned such that a self-servoing action is applied to the wire 16 not only by gravity but by the tension applied to the stripped material 19. This self-servoing action causes the wire 16 to be continuously forced lightly into the stripper roll 18. The action causes the wire to run along the surface of the material to be stripped and obviates the need for any precise location of the wire stripper. The same wire stripper can be used for label removal from glassine backings. * Trademark of E. I. du Pont de Nemours & Co.

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