John R Semenske, Age 583490 Birnamwood Dr, Slinger, WI 53086

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3490 Birnamwood Dr, Slinger, WI 53086 (262) 623-6346

West Bend, WI

Germantown, WI

2226 N Lynn Ln, Lake Geneva, WI 53147

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Us Patents

Method And Apparatus For Servo Glue Gap Control

US Patent:
2003006, Apr 10, 2003
Filed:
Oct 1, 2001
Appl. No.:
09/968699
Inventors:
Robert Kaska - Saint Charles IL, US
John Semenske - Lake Geneva WI, US
International Classification:
G05B011/01
US Classification:
318/560000
Abstract:
A servo control system for adjusting adhesive film thickness on a glue machine glue roll includes a servo motor for driving a glue gap adjusting mechanical linkage, a position encoder integrated into the servo motor, and a servo position controller coupled to the position encoder. In addition, an operator control interface coupled to the servo position controller directs the operation of the servo motor. The operator control interface includes a processor and a memory storing instructions for execution by the processor. The instructions are responsive to position encoder feedback for turning the servo motor to achieve a desired glue gap size, for example, in accordance with a selected velocity profile for the servo motor. The velocity profile typically specifies servo motor velocity between a start position (e.g., a current glue gap size) and an end position (e.g. the desired glue gap size). The control system may determine the desired glue gap size as a function of a glue machine line speed. The function is preferably an approximately linear function of the glue machine line speed. Alternatively, the control system may consult a preprogrammed lookup table of glue machine line speeds, desired adhesive film thickness, glue gap sizes, and other parameters to determine the desired glue gap size.

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