Mis-tie detection for baler knotter

A knotter assembly for use with a baler, operable to produce a knot in a strands of twine to bind a bale of crop material, the knotter assembly comprising a twine holder for maintaining the twine in a suitable position during the formation of the knots and a twine disc assembly, the twine disc assembly comprising a plurality of parallel discs mounted for rotation on a shaft, wherein each disc of the plurality of discs has a plurality of notches spaced around an outer circumference of the twine disc, the strands being held in the twine disc assembly by the twine holder, wherein the knotter assembly further comprises:

• a mis-tie detection device configured to monitor the twine being held with the twine holder in one notch of the plurality of notches of the twine disc, the mis-tie detection device having a position indicator positioned adjacent the twine disc and movable about a pivot, wherein the position indicator has a twine-receiving groove that aligns with the notch in the twine disc such that the twine is simultaneously held in the notch and groove, and tension in the twine during a knotting cycle causes the position indicator to move from a first condition to a second condition, the mis-tie detection device also having a sensing mechanism configured to determine a position of the position indicator.