In the drink filling and food industries metal and non-metal containers are filled with products. According to legal regulations the actual filling quantity may only deviate from the respective nominal filling quantity within narrow limits. For this reason checking and possibly regulating the automatic filling process is of great importance to the operator of such a bottling plant. A very precise and reliable possibility of checking the fill level is to measure the absorption rate of an X-ray which depends on the fill height inside the container. This method can even be used if other technologies (e.g. the high-frequency measuring technology) are not applicable due to special boundary conditions (e.g. in the case of metal containers or metallised labels on the packaging). In the arrangement explained here an X-ray generator unit is assembled in such a way that the X-rays emitted run horizontally through the containers to be checked in a very narrow area. The X-ray tube is adjusted approximately to the height of the nominal fill level. A receiver is assembled accordingly on the other side of the container which records the rate of the incoming X-rays. The damping of the rate is then directly proportional to the current fill height of each container running between the transmitter and the receiver. Downstream measuring and evaluation software is able to determine the respective fill height from the damping and reject incorrectly filled containers from the flow of correctly filled containers. Two measuring bridges can be operated in parallel if a container is to be checked for underfilling as well as overfilling.
Please see below for a video of this plant installed in the previous factory.
- Manufacture: Heuft Systemtechnik GmbH
- Model: C7 FLD X-ray Squeezer QL
- Function: X-ray machine
- Year of manufacture: 2013
- Serial number: 25396
- Maximum operating value of the X-ray generator: 60 kV / 120 µA
- Type approval: BfS 20/04 R RöV
- See ‘Technical Doc’ link attached for further details
Download Technical Doc