Movement-regulating mechanism for a sealing device

A movement-regulating mechanism for a transverse sealing device having transverse sealing means, comprising:

• a cranking disc with a center of rotation, said cranking disc being mounted for rotation at a fixed location about its center or rotation;
• a crank pin mounted for movement in a radial direction to said cranking disc;
• radial movement means connected to said crank pin for moving said crank pin to adjustable radial positions on said cranking disc;
• a transverse rod having having an elongated longitudinal direction, said transverse rod having an elongated slot extending in said longitudinal direction for slidably receiving said crank pin;
• a support shaft operatively connected to said transverse rod at a location spaced from said longitudinal slot thereof, for pivotally supporting said transverse rod so that, with rotation of said cranking disc, said crank pin slides in said elongated slot to pivot said transverse rod;
• a pivot connected to said transverse rod for sliding movement in the longitudinal direction of said transverse rod;
• longitudinal movement means connected to said pivot for moving said pivot to selected longitudinal positions with respect to said transverse rod, said pivot always being from said support shaft;
• a vertical rod pivotally connected to said pivot and movable in a vertical direction by pivoting of said transverse rod, said vertical rod being connected to the transverse sealing means for vertical up and down movement of the transverse sealing means;
• and
• guide means for guiding said vertical rod for movement in the vertical direction.