Technical term for the continuous or intermittent back and forth movement of tools in machines. The movement can be back and forth, up and down or to the right and left. The oscillation is usually realized by pneumatic cylinders and electric motors.
Application in sanding machines
- sanding belt unit
- better utilization of abrasives (usually sanding belt): Only rarely, the entire sanding width is used. Due to the oscillation of the sanding belt, the sanding grains lying on the edges are also included.
- more even sanding pattern: Soilings or sanding grain breakouts leave traces on the wood surface. The back-and-forth motion blurs these traces through subsequent sanding grains.
- see also technical term sanding belts oscillating
- brushing unit
- cleaning brushes: Here, the oscillation causes an uniform wear of the brush and a more thorough cleaning through the superposition of the straight forward feed direction with sideways directed movement of the brush.
- satin-finishing brushes: Here, the same effect for the workpiece quality is achieved as reached by sanding belt oscillation.
- blow-off device: The right-left-movement of the nozzle suspension causes the even blowing off of the wood dust from the sanding belt and thus allows a lower number of nozzles than would be required without oscillation to fully cover the grinding belt width. This helps to save compressed air.
Application in edgebanders
On edgebanders oscillating sanding belts and buffing wheels can be found. Buffing units with oscillation can be seen mainly on axially arranged pneumatic cylinders.
