Round baler with self aligning knives for twine wrapper

A round baler, including a housing with a bale chamber defined therein, and a bale wrapping apparatus disposed in the housing adjacent the bale chamber to wrap a rotating bale formed in the chamber, the bale wrapping apparatus comprising:

• (a) two twine supply rolls rotatingly connected to the housing and defining two twine strands;
• (b) two twine dispensing arms, each dispensing arm presenting one of the two twine strands;
• (c) a first shear bar connected to the housing;
• and
• (d) a first knife assembly rotatingly connected to the housing by an elongated bar and rotatable from a first position to a second cutting position in contact with the first shear bar, wherein each twine dispensing arm is movable from a first position presenting one of the two twine strands to the bale to a second cutting position wherein each of the two twine strands extends transversely between the first shear bar and the first knife assembly, the first knife assembly comprising:
• (i) a mounting assembly comprising a mounting member having two protruding posts;
• (ii) a knife having two slots formed therein and a cutting edge, the knife mounted on the mounting member so that each protruding post extends through one of the slots;
• and
• (iii) a biasing member disposed on each post so as to bias the knife toward the mounting member while permitting the knife to move relative to the mounting member when the cutting edge of the knife rotates toward the second cutting position in contact with the first shear bar so as to cut the two twine strands.