Many of us have heard the name Archimedes screw conveyor, but not everyone knows the word screw conveyor. These people (unfortunately, the cameraman of [breeze media] didn’t tell us their name or company name) have a process of manufacturing screw conveyor, all the way to an art.
Screw conveyors are useful, but many people avoid them because they seem difficult to manufacture. In this video, we see how it is done. The staff in this video are making large equipment from metal, but the same method can also be used on small-scale plastic board or paper.
It starts with cutting the washer and radial slitting. When they deform into their final shape, the holes close, so the holes are slightly larger than the pipe that forms the center. Then strike them with a sledgehammer to produce a slight spiral (such as a lock washer). It worked. The edges of the slits are welded together to form a “compression” spiral, and the ends are welded to the pipe
Now let’s talk about a clever point. They have a very high gantry, only a few steel pipe poles with cross bars, which are installed in the yard of the factory. Below it, they drilled a well. The free end of the pipe goes down the well. The bottom of the screw is fixed to the bottom plate around the well. Next, lift the pipe to its final shape. Finally, everything is welded in place.
In the video after the break, they are making a screw feeder. The lower part of the hopper requires a lower pitch. So they clamped a few turns, pulled out the main part, welded it, and then moved the clamp to make the feeder part.
The hacker part is art, and the screw is visually interesting. There is one in this piggy bank. Put one in your next hacker!