B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/33
B31B 5/74 (2006.01) B31B 5/78 (2006.01)
Patent
CA 1301518
A B S T R A C T An apparatus for folding into an open state sleeves which are lying flat and which consist of paper, cardboard or the like which comprise a longitudinal sealing seam, particularly for the manufacture of liquids packagings. A feeder is provided for grasping the flat sleeve and introducing it into a position in which it is axially aligned between a mandrel and an ejector. The feeder comprises, pivotable about an axis parallel with the direction of linear movement of the ejector, a distributor-rocker having pivotable through a quarter-circle and about the axis a centring web, opposite the extreme outwardly pivoted position of which there is fixed a stationary folding abutment having V-wise disposed receiving surfaces. Alongside the folding abutment there are on both sides pivoting levers with vacuum apertures which are so pivotable that two bearing planes which in each case define a pivoting lever span a V-shaped 'roof' corresponding to two adjacently disposed side faces of the folded-open sleeve. The ejector has at the front a square plate and travels a distance greater than the length of the pivoting lever and is capable of reciprocating movement along the bearing planes which are arranged in a V-shape, controlled in synchronism with the pivoting movement of the distributor-rocker.
588517
Moffat & Co.
Tetra Pak Holdings S. A.
LandOfFree
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