BUSKRO BK730-2 - Advanced Setup Instructions; Crease and Pinch Roller Adjustment

Chapter 2 BK730-2 Base Page 2-23
Note: Lowering of the upper transport assembly is accomplished by rotating the product
thickness handwheel clockwise (CW). Conversely, a counter-clockwise (CCW)
rotation of the handwheel will raise the upper transport assembly.
2.4 Advanced Setup Instructions
These instructions comprise all the adjustments necessary to optimize the operation of the
tab-wrap section for trouble-free operation and superior tab-wrap quality. Careful
attention and diligence should be used when performing these adjustments since even the
slightest movement will result in dramatically different results. If you are unsure of the
instructions in this section, please contact your service representative to ensure your
system is optimized.
The following instructions discuss how to setup the lower pinch rollers and the tab crease
rollers. The Tabber/Labeler is equipped with an identical set of rollers and form plate on
both sides of the base for both left and right tabbing capabilities, hence the instructions
must be repeated for both sides to ensure consistent operation regardless of which side is
used during normal operation.
2.4.1 Crease and Pinch Roller Adjustment
The purpose of the crease and pinch roller combination (
Figure 2-11) is to initiate the tab
wrap-forming process. The crease roller folds the protruding portion of the tab along the
edge of the product with the pinch roller acting as an anvil. It is vitally important that the
outer forming side of the pinch roller be closely aligned to the product edge registration
line in order to produce a crisp fold line close to the product’s edge. When adjusting these
rollers, the pinch roller setting should be done first, followed by the crease roller setting.
The gap setting between the crease and pinch rollers is critically important as it
determines the crispness and tab fold location with respect to the edge of the product.
This ultimately determines the quality of the tab-wrap. If the crease roller is too far away
from the pinch roller and the gap is too large, the tabs will skew since the pressure
Buskro Ltd. BK730-2 Tabber