Tray blanks are placed into the feed magazine or optional belt feeder
and indexed into a magazine hopper. Individual tray blanks are pulled
from the primed hopper by a rotary feed unit. Stripper lugs capture
the blanks, and carry them into a pocket.
As the tray blanks enter the pocket, an
overhead mandrel forms the leading edge of the tray, and pulls the
tray away from the pusher lugs.
After the trailing edge is formed, leading and
trailing minor flaps are plowed into position by a side mounted tucker
arm.
As the tray moves past the glue heads, glue is
applied to the minor flaps. The major flaps are plowed up, and static
compression rails maintain pressure on the flaps while the glue sets.
The tray moves through a holddown section,
where the overhead forming mandrels are removed. Completed trays exit
the tray former onto a customer supplied conveyor.
The Nigrelli Systems Tray Former is a sturdy,
reliable unit, designed for 24 hour, 6 1/2 day operation. The work
flow is open and straight forward, allowing easy visual inspection.
The system is capable of variable speeds up to 100 trays per minute,
and all operations are sequenced by computerized PLC controls.
