Patent ID: 6023917
Filing Date: 2000-02-15
Classification: B26D,B26F,B65B

Abstract:
A separating device for a tube packaging machine comprising:a sealing jaw mounted on a first rotatable shaft;a counter jaw mounted on a second rotatable shaft said second rotatable shaft being rotatable in a direction opposite the direction of rotation of said first rotatable shaft;a blunt crush blade held by said sealing jaw, said crush blade having a zigzag-shaped crush edge formed by a plurality of V-shaped grooves, said grooves having a plurality of alternating forward grooves and lagging grooves, said lagging grooves being displaced from said forward grooves by one half of a groove width, each said groove further having two sides said crush edge defining a surface;a counter support held by said counter jaw;a plurality of forward cutting edges each formed by a pair of neighboring forward grooves;a plurality of lagging cutting edges each formed by a pair of neighboring lagging grooves, where each said lagging cutting edge is offset from its neighboring forward cutting edge by half a width of one groove, wherein each pair of adjacent sides of said grooves forms an obtuse angle of between 95 degrees and 150 degrees at the forward cutting edges and the lagging cutting edges;a plurality of forward corners of said crush edge, each said forward corner formed at the intersection of one of said forward cutting edges and said crush edge, said forward cutting edges intersecting said surface at an angle of less than 50.degree.; anda plurality of lagging cutting edges of said crush edge, each said lagging corner formed at the intersection of one of said lagging cutting edges and said crush edge, said lagging cutting edges intersecting said surface at an angle of less than 50.degree..