EW January 2011

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EuroWire – January 2011 46
Stranding, twisting, bundling & bunching
Drive units for bunchers
Techna International represents Joachim Uhing KG, a manufacturer of rolling-ring and timing-belt linear drive units and systems.
A recent development in this field is the RegBlue wireless signal transmission system for double twist bunchers.
Rolling-ring drives operate by
converting unidirectional, rotary
motion of a round, unthreaded,
hardened shaft into totally backlash-
free, automatically reciprocating,
bi-directional linear travel.
Such drives are equipped with
infinitely variable pitch and can,
by utilising slowdown reversal
mechanisms, reach a speed of up to
4.2m per second.
A simple “free-movement” lever
allows for manual disengagement
and re-positioning of the unit on the
shaft and automatic reciprocating
travel is achieved with a constant
shaft speed and rotational direction,
with automatic reversal at set
positions (changeable by the user)
or controlled by pneumatic or
electromagnetic actuators.
All functions (reversal, stroke
width, pitch per revolution and
free-movement) can be remotely
controlled and heavy loads or high
forces can be accommodated with
additional load carriers.
Eight models cover shaft diameters from 15mm to 80mm diameter with up to 3,600N side thrust. The RegBlue system provides
interference-immune Bluetooth wireless technology for handling signal transfer for traverse winding units without slip-rings and in
particular, for use with double twist bunchers.
Operators can externally adjust the stops of a rolling-ring drive, or can control the reversal points of a traverse unit with a spindle
or timing-belt, while the system is operational. Optional length measurement of wound material and the connection of wire-break
sensors causing the machine to stop can be provided where required.
The RegBlue system consists of (1) a receiver unit installed inside the rotating bows of a buncher, (2) a controller with transmitter
installed in the machine’s switch cabinet (antenna must be inside the soundproof hood) and (3) a control box located where visual
contact with the spool is possible (all three can be installed in a separate single enclosure).
Techna International Ltd – UK Fax: +44 1923 219700
Email: Website:
GER SA sells stranding and bunching
machinery park
GER SA Nessonvaux (Belgium) plays a major part in buying and selling second hand-machines on a worldwide scale.
The company recently sold the entire stranding and bunching machinery park of a medium-sized wire and wire rope factory in Italy to
one of its long-term customers in India, also a well-known producer of wire ropes.
The sale included 15 tubular stranders/closers of different configurations and sizes, six double-twist bunchers as well as accessories
and more than 600 bobbins.
GER SA – Belgium Fax: +32 87 26 02 01
Email: Website:
RegBlue from Uhing ▲ ▲