Operating instructions UVR-300/UVR-400 | Heinz Soyer Bolzenschweißtechnik
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6 Description of the UVR-300 / UVR-400 feeders
The UVR-300 and UVR-400 universal feeders
allow weld studs of different diameters to be
loaded rapidly and fully automatically into the
welding gun or welding head. Time-consuming
conversion or adjustments to other stud
diameters are not required.
A vibration drive transmits vibrations to the
feeder bowl. The studs move clockwise from the
base of the feeder bowl to the stud escapement
via spiral-shaped steps travelling upwards.
The feeder bowl is fitted with a step width
adjustment to strip off studs lying on top of one another, or to separate studs sitting next
to one another. After the studs have run through the separating device, the individual
studs move into the outlet rail through the vibration and hang in a vertical position.
When transporting tapped studs, it cannot be ruled out that the ignition tip in the internal
thread may become entangled in a preceding or subsequent tapped stud. The air flow
of an air nozzle separates the entangled tapped studs before they are fed into an
inclined plane where they are transported to the slide.
A compressed air cylinder moves the stud retainer, which serves to hold the studs,
under a hose retainer. Compressed air is fed through a blow air nozzle which blows the
studs and moves them into the stud welding gun or the welding head via the stud feed
hose.
The feeder intensity can be adjusted via a potentiometer. This is controlled via a control
panel with membrane keypad. LED displays and signal transmitters on the stud
escapement enable a regulated function in both continuous and automatic mode.
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Automatic feed
In connection with e.g. the PS-3A stud welding gun and an energy source with feeder
interface, the studs can be fed into the gun automatically using compressed air.