Mistie detector and indicator system

Details Mistie detector and indicator system Mistie detector and indicator system

1987-06-01

1988-06-28

Rimrodt, Louis K.

Knots and knot tying

Knotters

289 181, A01D 5904, B65B 1326

Patent

active

047534648

ABSTRACT:
A knotter mechanism, utilized on a square baler to encircle the bale with a wrapping material and tie a knot in the material after the wrap is complete, is provided with a detector mechanism for detecting knotter malfunction. The detector mechanism comprises an elongated detector pin which is mounted to pivot in a vertical plane, the pin being mounted on the twine finger of the knotter mechanism so as to pivot therewith in a horizontal plane. The pin is encircled by the wrapping material as the bale is encircled and is within the loop of wrapping material after a knot is tied. As the tied bale is moved rearwardly from the knotter station the detector pin engages the loop of wrapping material and pivots the twine finger thus causing a switch to be actuated. Failure to actuate a switch signals a knotter failure. Upon further movement of the tied bale rearwardly, the loop of wrap material slips over the end of the detector pin and a spring mechanism returns the twine finger and the pin to their initial position.

REFERENCES:
patent: 3188125 (1965-06-01), Pesch
patent: 3416824 (1968-12-01), Nolt et al.
patent: 4493498 (1985-01-01), Vansteelant

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