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Browse Prior Art Database

WELDER MODIFICATIONS

IP.com Disclosure Number: IPCOM000027570D
Original Publication Date: 1997-Dec-31
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 58K

Publishing Venue

Xerox Disclosure Journal

Abstract

A conventional welding technique for fabricating photoreceptor belts employs a ballscrew to drive an ultrasonic welder across the belt material. However, the ballscrew leaves its screw signature embedded in the weld seam. This pattern results in inconsistent weld seam roughness test results. This produces an increase in the amount of downtime and lost production time due to welder horn adjustments and excessive weld seam roughness testing. Moreover, the seam roughness test consistently shows a high test value due to the ballscrew pattern. Rough weld seams are undesirable since they can decrease the life of cleaner blades used in various copiers and printers.

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XEROX DISCLOSURE JOURNAL

WELDER MODIFICATIONS

Lester B . Plumb Ralph M. Palazzolo Ronald D. House Dennis L. Johnson David A. Eck Ruben Hernandez

Proposed Classification
U. S. C1. 156/272.2 Int. C1. B32b 31/00

A conventional welding technique for fabricating photoreceptor belts employs a ballscrew to drive an ultrasonic welder across the belt material. However, the ballscrew leaves its screw signature embedded in the weld seam. This pattern results in inconsistent weld seam roughness test results. This produces an increase in the amount of downtime and lost production time due to welder horn adjustments and excessive weld seam roughness testing. Moreover, the seam roughness test consistently shows a high test value due to the ballscrew pattern. Rough weld seams are undesirable since they can decrease the life of cleaner blades used in various copiers and printers.

A new welding technique and apparatus are now described which can minimize or eliminate the problems mentioned above. The new welding technique and apparatus involve using a DC reduction drive motor and a flat belt to drive the ultrasonic welder assembly. The flat belt eliminates the ballscrew pattern. The flat belt is routed on two pulleys, one at each end. The idler pulley located at the welder's home position is adjustable which allows for proper tensioning of the flat belt for smoother welds.

DP5644

XEROX DISCLOSURE JOURNAL - Vol. 22, No. 6 NovernberlDecember 1997 28 1

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