Apparatus for making packaging sleeves

Details Apparatus for making packaging sleeves Apparatus for making packaging sleeves

1979-04-23

1981-01-06

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Tube making

Polygonal cross section tube

493276, B31B 152

Patent

active

042429498

ABSTRACT:
The apparatus includes a mandrel, about which blank sheets are successively folded to obtain packaging sleeves. On one face the mandrel has a recess which extends in the length dimension of the mandrel and in which a first pressing shoe is arranged for reciprocation parallel to the mandrel length. A face of the first pressing shoe complements a mandrel face to a continuous folder face. A second pressing shoe cooperates with the first pressing shoe in pressing and bonding together overlapping edge zones of the blank folded about the mandrel. The first and the second pressing shoes are--as they press the overlapping edge zones--movable as a unit together with the packaging sleeve relative to the mandrel parallel to its length dimension. In this manner the packaging sleeve is stripped from the mandrel, while the adhesive between the overlapping edge zones sets as the stripping takes place.

REFERENCES:
patent: 1628120 (1927-05-01), Cooper
patent: 3530773 (1970-09-01), Kuhnle et al.
patent: 3765308 (1973-10-01), Auckenthaler
patent: 3776105 (1973-12-01), Coates

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