Metering dispensing device

摘要

The invention relates to a metering dispensing device for multicomponent plastics from can-shaped transport containers which have a rim bead and discharge openings located in the base, consisting of a frame with one or more support plates for the can-shaped containers, whose discharge openings are aligned with holes in the support plate, and of a drive device, fastened to the frame, for piston rods with pistons which can be inserted into the containers. The object to be achieved is to provide a dispensing device with which containers of a plurality of sizes may be emptied. The invention achieves this object in that either each support plate is fastened, so as to be exchangeable for a support plate of a different size, to a fastening device for fastening to a fastening head which is arranged on the frame and receives the outflow channel and sealing means, or in that each support plate has, peripherally around each hole, at least one annular or circular recess which corresponds to the diameter of a container rim and in that either there is arranged on the piston rod a fastening device for exchangeable pistons, whose diameter corresponds to the internal diameter of the can-shaped containers, or in that the piston is formed by at least one annulus or annular parts around a circular disc-shaped piston part.