Settings and Adjustments 85
Adjusting Tie Tightness
There are two adjustments on the Servo Tyer to adjust the tie tightness. One adjustment
is the eccentric ribbon guide and the other is the belt idler pulley.
Correctly adjusting these is important to understand how this area of the Servo Tyer
works. The bag neck is gathered into an area called the window. The window is shaped
like a sideways "V". The "V" opens up to the discharge end with the lower belt forming
the horizontal, the ribbon wire forming the vertical, and the upper belt forming the
diagonal. By increasing or decreasing the size of the window, the tension around the bag
neck can be determined. If the tie around the bag neck is too loose, the window area
should be decreased. If the tie around the bag is too tight, as to cause tears or holes in
the bag neck, the area of the window should be increased. The window may also need to
be adjusted when changing bag size or thickness.
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