Device for making portion packs of a dividable filling in a flexible tubular container

A device for forming portion packs of a dividable filling in a flexible tubular container by crimping said tubular container, which comprises an outer ring (12) and a concentric inner ring (9), said outer ring being rotatably supported by said inner ring (9) and being secured against axial displacement with respect to said inner ring (9), at least four crimping elements (11) in the form of strips each having a first end and a second end, each of which is individually pivotally mounted at the first end thereof to inner ring (9) at pivots (10) which are equally spaced apart from each other around the periphery of inner ring (9), said outer ring (12) having unilaterally radial recesses (14) equally spaced apart from each other around the periphery thereof, within which rounded pairs of guiding members (17) are disposed between which the second ends (15) of each of the strips (11) are loosely inserted whereby said strips are displaced with respect to each other and cooperate to form an aperture (19) of variable size, and wherein rotation of outer ring (12) with respect to inner ring (9) in one direction causes the displacement of the comprising elements (11) with respect to each other to decrease, so that said aperture (19) closes, whereas rotation of outer ring (12) in the opposite direction with respect to inner ring (9) causes the displacement of the crimping elements (11) to increase with respect to each other, so that said aperture (19) opens so that, in operation, said flexible tubular container is inserted through said aperture (19), said outer ring is rotated to cause said crimping elements to move closer to each other and close said aperture, thereby crimping said flexible tubular container, and then said outer ring (12) is rotated in the opposite direction to release said flexible tubular container.