User guide

How the Combination Puller/Cutter
Works
First, the extruded material that has been sized and cooled enters the combination
puller/cutter from the upstream side. The extrudate passes through and is posi-
tioned by guide rollers.
Then, the two opposing belts move the extrudate through the puller. These belts
have grooves that fit teeth on the puller’s sheaves (sprockets), preventing side-to-
side movement. Belt coverings are available in a variety of materials for specific
applications. Walk-through style belt guards ensure operator safety while allowing
access to the belts. The belt speed is controlled by eye-level controls.
A threaded rod controls the distance between the upper and lower belts. The top
and bottom belts open from a common, fixed center. Rubber grommets, on the
CPC 1-12, allow the upper belt to 'give' slightly, preventing the puller from being
damaged by small lumps of extrudate or other foreign objects.
After passing through the belts, the extrudated material continues on to the cutter.
The cutter is mounted on linear slides that allow as much as 6 inches {152.4 mm}
of movement. The cutter can be moved away from the puller for startup, then
moved close to the puller to enhance delivery to the cutter bushings.
Next, the cutter's servo motor, which is positionally controlled, operates the cutter
head and knife that is attached directly to the servo motor using a Trantorque
coupling device. Two cutter bushings guide and support both the extrudate and
the cutting knife. The extrudate passes through the cutter bushings and is cut by
the rotating cutter head.
The cut pieces are collected or carried on to further processing by an optional
conveyor. (Take Away/Blow Off Conveyor)
2-4 l Description
(continued)