Magnum Venus Plastech Impregnator Roll - Manual (Page 13)

5.
Lubricate “O” rings on the pour tube plugs and install into pour tubes.
6. Install pour tubes into manifold block.
NOTE: For an unbalanced laminate, such as woven roving and mat, it may be necessary to
have more holes in one pour tube than in the other. Care should be taken to install the pour
tubes on the correct side if an unbalanced laminate is employed.
7. When pour tubes are in position over the nip rolls, rotate the pour tubes until the holes will direct
the resin down into nip of rolls and not onto reinforcement materials. When pour tubes are
installed and in the correct position, the reinforcement material can be loaded and positioned
onto Impregnator.
LOADING REINFORCEMENT
Reinforcements of various types and combinations can be wet-out with the Impregnator. Refer
to the section on reinforcement types. There are machine limitations noted in that section.
NOTE: When setting up the material, care must be taken to align the reinforcement in such a
manner that it enters Impregnator at the proper location. The reinforcement should be centered
equal distance from the ends of the rolls. This location must be repeated every time a new roll
of material is loaded onto the machine. Through experience the simplest way to maintain
location and repeatability is by use of shaft set collars.
Following steps outlined below will simplify the material loading process.
1. Place roving mandrels on the bearing blocks provided on machine. Center the mandrel on the
bearing blocks so an equal length of mandrel protrudes past the bearing blocks on either end.
2. Place two set collars on one end of the mandrel, one on each side of the bearing block. Lock
set collars into position with set screws.
NOTE: Set collars should be loose enough to sides of bearing lock so that mandrel turns freely.
3. Place proper size roving cone on the mandrel with the tapered end toward the center.
4. Remove mandrel from the bearing blocks and insert through core of the reinforcement. Place
another roving cone on the mandrel and set cones into roving core.
5. Replace mandrel, with reinforcement mounted, back onto the bearing blocks.
6. Center material between the bearing blocks so there is an equal space at each end between
material and bearing block. Check to make sure the cones are into the core and will not work
loose.
7. Lock the cones to the mandrel shaft with set screws.
NOTE: When removing the paper core from the mandrel shaft to lead a new roll of material into
place, unlock cone on opposite end from the set collars and insert mandrel shaft into new roll of
material from that end, and replace cone, locking it into position. The new roll will be in the
same location as the previous roll.
The above procedure holds true for units that have a roving cassette. Positioning of material is
the same when mounting on a cassette.