method and device for folding a verpackungshülle for butter, margarine or the likea rectangular layout of a einwicklers from parchment, kaschierter aluminium foil kunststoffbefilmten paper 2)

摘要

Process and apparatus for folding an upwardly open round or oval packaging wrapper without disordered side folds, into which butter or the like can be introduced in liquid form. The wrapper is formed in that the rectangular wrapper blanks, made of parchment or aluminium foil and arriving on a folding plate (8) in wrapper guides (9), after coming under a folding ram (1) of a folding shaft, are laid, in the region of each head wall (4, 5, 6) of the folding shaft, against the outer edges of an upper head-wall part (4) by downwardly moving folding bars (3) and, by a prefolding rod (7) arranged between the folding bars (3) and moving down together with these, are forced into a recess (4a) of the upper head-wall part (4) to form a respective fold. The downwardly moving folding ram (1) thereafter presses the blank downwards through the folding shaft, and it is shaped into an upwardly open wrapper having smooth side walls. IMAGE