Method for initializing the position of a linear drive system

Details Method for initializing the position of a linear drive system Method for initializing the position of a linear drive system

1994-11-28

1997-06-10

Ruggiero, Joseph

Boots, shoes, and leggings

364161, 36447414, 36447434, 493 2, 493 34, G05B 19401

Patent

active

056382685

ABSTRACT:
A thermoplastic bag making machine having a sealing bar assembly driven by two separate linear drive units is initialized following full shutdown by traversing the linear drive units at constant velocity against mechanical stops, and then resetting position error signals and traversing the bar a known distance to a home position. This procedure is also useful for single linear drive units, as well as multiple linear drive units that must be coordinated for position and motion. In the case of multiple drive units, procedure for offsetting travel distances off the stop for non-uniformity in stop positions is utilized.

REFERENCES:
patent: 4045660 (1977-08-01), Weisgerber et al.
patent: 4371942 (1983-02-01), Damikolas
patent: 4484287 (1984-11-01), Gamo et al.
patent: 4600870 (1986-07-01), Martin
patent: 4745557 (1988-05-01), Pekar

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