Filling machine
Filling machines automatically fill powder, paste, granular or liquid substances into bags , cans , tubes , bottles , etc. They measure the amount, for example according to the volume, for example with a piston filling machine. A piston sucks the substance out of the storage container and presses it out through the turned three-way valve when it returns. The amount is set by changing the piston stroke. Another way of determining the quantity is to measure the filling level using a sensor on the filling tube that protrudes into the container. When the filling level is reached, the supply of the liquid product is stopped via the sensor. A third variant is the control of the filling quantity via a flow rate measuring device. The measuring device integrated in the inlet to the filling valve determines the flow rate via induction measurement and controls the closing function of the filling valve when the filling volume is reached. Filling machines are available in linear or carousel versions. With the linear variant, a fixed number of containers is filled intermittently. With the carousel version, the containers are filled continuously around the carousel construction of the filling machine. Carousel filling machines achieve higher frequencies (hourly output) compared to linear filling machines .
- Bottle filling machines in beverage filling work with foaming liquids (e.g. beer ) with counter pressure, and recently also by suction.
- Tube filling machines work in various processes manually, semi-automatically and automatically. Tubes are placed on transport plates and filled from the side opposite the screw cap, then automatically folded (closed) or welded and ejected.
- Can filling machines for waxes ( floor wax , shoe wax , etc.) have heating coils or water baths to make the filling material plastic for a short time.
- For flour and similar bulk goods, there are filling scales that divide up according to weight.
literature
- Günter Bleisch, Jens-Peter Majschak, Uta Weiß: Packaging processes, theory and practice. Hamburg 2011, ISBN 978-3-89947-281-3