Apparatus for making lined containers

Details Apparatus for making lined containers Apparatus for making lined containers

1978-11-29

1980-09-16

Spruill, Robert Louis

93 3601, 93 391P, 93 392, B31B 374

Patent

active

042223121

ABSTRACT:
An apparatus for making a container having an inner bag and an outer stiff box of prismatic shape and rectangular cross section. The apparatus includes a rotatably supported mandrel wheel having a plurality of radially extending mandrels of rectangular cross section. The mandrel wheel is intermittently advanced to sequentially introduce the mandrels into a plurality of work stations positioned about the mandrel wheel for sequentially working on the containers carried by the mandrels. In one work station each mandrel is provided with a circumferentially closed inner bag; in a successive work station a rigid blank is folded on each mandrel about the inner bag for forming the outer box. Each blank has four lateral sides, a large closing flap extending from one end of each side in the same direction, and a small right-angled flap extending from an opposite end of each side in the same, opposite direction. In a further successive work station a folding and pressing device is provided for forming, by folding and pressing, from two opositely located small right-angled flaps, two oppositely located linear parts of a collar and an inner flange of the outer box. Further, in a successive work station a stripping device is situated for removing the containers from the mandrels.

REFERENCES:
patent: 878632 (1908-02-01), Hook
patent: 1376361 (1921-04-01), Sauvage
patent: 3667351 (1972-06-01), Egli
patent: 3774509 (1973-11-01), Heinzer

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