Method for weighing masses on a conveyer system and device for injecting liquid into food products via a vertically moving needle carrier

A device for treating food products, comprising:

• a conveyor system that includes a conveyor section that is limp in a vertical bending direction,
• a treatment device and
• an input scale and an output scale that are disposed at the conveyor system upstream and downstream of the treatment device in a direction of conveyance,
• wherein the input and output scales are devices for weighing masses on the conveyer system on which the masses to be weighed are advanced in a horizontal direction and are disposed at a common, continuous conveyor section of the conveyor system,
• wherein each of the devices for weighing masses includes:
• a force measuring device that supports the limp conveyor section from below, and
• an electronic processing device for recording a force/displacement function that indicates a measured weight force as a function of a distance traveled by the conveyor system, and for calculating a mass flow rate of the conveyor system by evaluating the force/displacement function, and
• wherein the treatment device comprises a needle carrier that is adapted to be moved up and down cyclically and that is equipped with needles for injecting liquid into the food products.