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General info:
In an effort to provide a seamless transition
from Screwdriver to Screwfeeder, DEPRAG has expanded the handheld Screwfeeder
series SZG to now include also the Micromat®–E and the Minimat®–E
screwdrivers.
As shown on the left
illustration, the concept and tooling is very similar to the current design
for our pneumatic screwdrivers.
The two different Screwfeeding
designs available, are the vibratory design and the sword-feeder design.
The vibratory design offers the fastest processing time. The vibratory
feeder consists of a vibratory magnet, which in connection with a 3-spring
set that is stimulated and controlled by a microprocessor, generates a
micro-wave movement that effectively transports the screws to a separator
(singulator). The air-blast connected to the separator will shoot each
screw individually through a hose into the tooling at the tip of the
Screwdriver. The screw reloading is different with the electric
screwdrivers, since there is no flow-sensor that detects a pressure-drop in
an airline. Instead, the controller produces a screw-reload signal at the
end of a drive cycle.
The sword feeder incorporates a lift-rail, which
moves through the container and simultaneously aligns, lifts and transports
the screw by gravity to a separator.
Where the vibratory feeder allows the fastest
transport of screws, the sword feeder is very gentle to screws (no
vibration and rubbing against each other) and has the lowest noise level of
only 48 dB(A).
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