Barry-Wehmiller Thiele Technologies Streamfeeder Reliant..., Руководство пользователя

Страница: 26 / 72

20 R
eliant
1500 M
anual
Review
The back wedge provides proper lift to the material to help keep it off
the table top and feed belts, and it creates the force necessary to push
material against the gate assembly. By adjusting it back and forth from
the gate assembly or pivoting side to side, you can create the lift and
force necessary to preshingle material against the curvature of the gate
assembly. Also, it keeps other sheets off the feed belts until proper
separation of the bottom sheet at the gate assembly has occurred.
Here are some general guidelines that should help you determine how
the back wedge should be positioned for your particular material:
•
Moving the individual triangle wedges to the outside of the back
wedge shaft (Figure 20A) will create a bow in the center. The bow
will stiffen the material to promote better singulation of thinner
material.
• Pivoting the back wedge from its perpendicular to the gate assem-
bly (Figure 20B) will increase or decrease the amount of drag or
contact (or traction) on the feed belts for a given side. This can also
be used to control twisting or skewing of material as it leaves the
gate assembly area.
STEP 3:
Back Wedge Setting
Figure 19. Adjusting Side Guides for Clearance
Keep in mind that the back wedge works with
the gate assembly to provide the proper lift, curv-
ature of the material, and proper belt/material
contact to separate and feed one sheet at a time.
NO TE
There are a number of feeding problems which
can be solved by simply adjusting the back wedge
to different positions. Some of these problems
include double feeds, skewing, twisting, poor
singulation, ink or varnish buildup on the belts,
and jamming at the gate assembly area.
TIP
STEP 2:
Side Guides Setting
(continued)
Horizontal
Adjustments