Spiral tube making methods and apparatus including splice reject

Details Spiral tube making methods and apparatus including splice reject Spiral tube making methods and apparatus including splice reject

1990-03-15

1991-07-09

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to work material, the product or means engaging...

493 12, 493 22, 493288, B31C 300

Patent

active

050301888

ABSTRACT:
In apparatus for forming cut lengths of tube by winding one or more strips of material into a continuously advancing spiral wound tube and periodically cutting off lengths of the tube, lengths of tube containing splices present in the strips are rejected at a rejection point downstream from the cut-off point by monitoring the strips for splices prior to winding, waiting until enough strip has passed the splice monitoring point to extend from the splice monitoring point to the rejection point, and rejecting the length of tube at the rejection point when that amount of strip has passed the splice monitoring point.

REFERENCES:
patent: 388462 (1888-08-01), Tainter
patent: 3136231 (1964-06-01), Hoyt
patent: 4378966 (1983-04-01), Schumacher
patent: 4473368 (1984-09-01), Meyer
patent: 4486186 (1984-12-01), Grumer
Industrial Electronics, "Photoelectric Register Controls", p. 39, FIG. 3, Jan., 1960.

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