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Issue 30
trends in automation
Synergies
28
–
29
Precision and reliability
The microdispensers and the mini-dis are
used with semiconductor products and
circuit boards, with the electronic
components of numerous automotive
modules and sensors, in medical
technology and with smartphones. The
mini-dis processes single- or two-
component materials with an epoxy,
polyamide, silicon or acrylate base and
soldering pastes in the µl range. Across
the world, several thousand different
casting materials are used.
When it comes to the dispensing
technology itself, two criteria are
especially important: precision and
process reliability. To achieve these,
bdtronic works extremely closely with its
clients’ experts. In the company’s own
application and technical centre, each
product is extensively tested to check the
interaction between the casting resin, the
dispensing technology and the
components to be processed. One of the
greatest challenges in the dispensing
process is the optimum preparation of the
casting resins. These must first be
homogenised and then evacuated. This
avoids even the smallest air pockets.
Flexible and compact
An important criterion for bdtronic when
selecting handling systems for dispensing
is an interpolated actuator control system
which allows travel along radii and thus
flexible contours. This is the only way to
define precise dispensing points, create
intricate patterns and fully encapsulate
components of different shapes. The new
desktop application with a Festo
controller CECC-X with SoftMotion
functionality fulfilled this need. A key role
was played by the programming language
CODESYS, with which the bdtronic
software engineers had already been
working for many years. Since the CECC-X
can be integrated via CODESYS, it could
be added to the company’s component
family in no time at all. A further
important criterion is easy reading in and
fast processing of CAD data.
“With the compact handling systems
from Festo, we have a complete unit
consisting of kinematics, a controller
and software from a single source. This
saves us time and money.”
André Hellinger, Head of Development, Dispensing Technology, bdtronic