Insertion Drum - Sacmi PMV 224 Maintenance And Operation Manual

176.12
.A03
Revision 01 Date 14.11.2001
MAIN FEATURES 2
2.1.1.2

Insertion drum

This unit is used to cut the extruded plastic material into small pellets and place them in the caps. The drum comes
equipped with spindles (1). Cutters (2), which cut the plastic into pellets and place them in the caps, are attached to
the bottom of the spindles. The spindles are seated in cylindrical holes equally spaced apart around the periphery of
the drum (3). The cams (4), located at the top, move the spindles up and down. While the drum is rotating, the cutters
move near the extrusion nozzle so that the plastic material can be cut into suitably sized pellets. The cutter holds the
pellets, brings them down to the caps and puts them in. This vertical movement is performed thanks to the cams
provided.
The size and shape of the cutters is closely related to the type of the plastic material used. This is normally determined
during machine commissioning.
After the cutter has nearly come into contact with the bottom of the cap, the pellet is pushed against the bottom by a
plunger. The plunger is located in the middle of the cutter. The latter moves vertically as it is secured to a cam outside
the drum in the pellet insertion area.
As a result, plunger operation is different and independent from that of the cutter it is secured to.
Compressed air is blown while the cutters are moving away from the bottom of the cap to help detach the pellets.
FIGURE 2.1.1.2 - INSERTION DRUM
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3
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2
T0385
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