Wexxar WF30T, Operation And Service Manual

Page: 86 / 190

WF30T Case Former Other Machine Adjustments
8-73
8.2 Stabilizer Bars and Pinblocks
The stabilizer bars are used to support the outside corner of the case as it descends into the
minor and major flap folders. See Figure 8-1. A standard set of 3 fixed bars will cover most case
sizes. The bars are most useful on medium to large sized cases, where the inherent stability of
the case is lower, and on machines running at higher speeds.
Figure 8-1: Pinblock Orientation
Adjust the number of pins penetrating the case flaps to best suit the case. Lower the pins in the
pinblocks mounted on the jawplates where they should penetrate into the case flaps; raise pins
where they should not penetrate. It may be necessary to raise pins to avoid engaging the wrong
flap when the case is opened.
Engage as many pins as necessary to get a good grip on the case, but be aware that having too
many pins will make injecting them into the flaps (and extracting them) more difficult, and can
also interfere with raising of the forming head after folding the bottom major flaps. Engaging too
many pins leads to a ‘slingshot’ effect when the pins release from the case, or, in extreme cases,
pull the bottom major flaps up out of the major flap folders.
Figure 8-2: Jawplate Assembly
Jawplates
Pinblocks
Case
Separator
Locking
Handles
Case
Separator
Stabilizer
Bars
Pinblock
mounting
orientation
Reversing
the block
when
mounting to
the jawplate
can change
the clearance
between pins
and dome
Stabilizer bars
Dome
Pinblock with
pins lowered
Pinblock with
pins raised