PORTIONING UNIT FOR A FILLING INSTALLATION FOR FILLING PRESERVE CANS

摘要

A portioning unit for a filling installation for filling preserve cans with viscous, pasty or lumpy material comprises at least one cylinder unit which travels along a sealing plate. A lower part (12) is provided with a first borehole (10) for the passage of filling material and with an annular spring (14) arranged concentrically with respect to said borehole. An upper part (18), which carries the sealing plate (22), is provided with a second borehole (16) for the passage of material and with an annular groove (20) concentric with the second borehole (16), which receives the annular spring (14). The depth of the annular groove (20) is greater than the height of the annular spring (14). The annular groove (20) receives an elastic annular tube (24).