Moog IMI220-145D001, Руководство пользователя

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PARISON CONTROLLER
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8 MAN145-UM-D01A-EN Moog Italiana srl - Bergamo
1.9 DCDT Position Transducers.
In order to maintain accuracy and repeatability of the programming cylinder motion, care must be taken when
mounting the DCDT tooling position transducer(s).
A DCDT can be mounted with the transducer body as the stationary element and the core as the moving member
or the core can be stationary and the body can move. Whatever method is used, the stationary element must be
rigidly mounted on a non-moving portion of the machine frame to provide a reference for piston movement.
Please note the following precautions when mounting the transducer:

The core must move freely in the body. There should be no side loading of the core nor should the core
rod be bent in order to make it align with the transducer body.

Mountings for both core and transducer body must be rigid. There should be no free play in any of the
brackets and the brackets should be made of a stiff material, which will not bend or give, with normal
machine vibration.

Provision must be made to allow for adjustment of the stationary element of the transducer. The
transducer’s position will need to be adjusted during calibration to bring the programming cylinder’s stroke
into the usable portion of the DCDT’s stroke. The ability to align the body with the core will also make future
DCDT replacement easier, if necessary.

When designing the DCDT mounting brackets allow for some type of anti-rotational device to keep the core
and body properly aligned.
A typical DCDT transducer installation using the moving core method is depicted in the drawing below.
Figure 3
Note the provisions made for the vertical adjustment of the DCDT body and the anti-rotational arrangement
incorporated to keep the core and body aligned.