feed screw


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feed screw

[′fēd ‚skrü]
(mechanical engineering)
The externally threaded drill-rod drive rod in a screw- or gear-feed swivel head on a diamond drill; also used on percussion drills, lathes, and other machinery.
References in periodicals archive ?
On early rubber injection machines, very little thought was given to the feed screw, because in rubber molding, the screw was mostly used just as a feed screw.
The mobile cross beam 1 together with milling heads 5 have a large weight (possibly exceeding 15 t) which, in the absence of a balancing system, is displaced on the guides of props 7 by the motor 2 acting through reducing gears 3 and feed screws 4.
Also on display was TS5000DMP which dispenses material with a rotary displacement action using a rotary feed screw principle.
Using an open throat feeding system with a patented feed screw design, executives said products positively feed into the rotor/stator element of the pump.
During the dispense process, therefore, the Fillers compact under pressure and fill up the gaps in the rotary feed screw.
The BTM is equipped with an auger feed screw in front of the rotor and the stator.
features an easy loading/unloading profile, a stainless steel mixing ribbon and a feed screw that operates at right angles to its conical hopper.
According to Netzsch, this increases capacity to 50% more than the standard feed screw design.
5 mm single screw extruder, examining the effect of degree of starvation on a conventional and barrier feed screw.
Simultaneous feed of two axes is possible by using a floating plate, thus eliminating runout of the feed screw.
Other key features include feed screw removal from the back of the unit, an easy cleanout vent chamber and linear bearing barrel glide support.