Control devices for web-feeding machines

Details Control devices for web-feeding machines Control devices for web-feeding machines

1980-02-01

1981-08-25

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

G01B 504

Patent

active

042851300

ABSTRACT:
This application covers a device included in the microprocessor control for winders or sheeters; the device is arranged to stop the machine when a desired length of web has been fed by accurately-timed start of deceleration from full speed. This avoids the need to run at a lower speed for a period as the desired length is approached.
In the device, the web speed is sensed by a transducer which delivers a speed signal, and from this is calculated the length of web which will be fed during standard deceleration. The result of this calculation can then be compared with the difference between desired length and length already fed (or the result plus length already fed can be compared with desired length) and when the result of this comparison indicates deceleration should start a signal is sent to the braking system.
As an alternative to calculation of length of web fed during deceleration from the sensed speed, the result may be obtained by a "table look-up" operation.

REFERENCES:
patent: 1894307 (1933-01-01), Ek
patent: 2735055 (1956-02-01), Thomas

Affiliated with

Also associated with

Rating

Control devices for web-feeding machines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control devices for web-feeding machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control devices for web-feeding machines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1152424