Package making – Interrelated or safety controls
Patent
1977-03-11
1978-03-21
McGehee, Travis S.
Package making
Interrelated or safety controls
53374, 198856, B65B 5700, B65B 720
Patent
active
040795730
ABSTRACT:
Case sealer apparatus for sealing filled cases that have their top flaps extending vertically and that includes flight bars on endless chains for first moving the filled case over frusto conical rolls to slightly open the bottom major flaps and permit the package plate to enter between the major and minor bottom flaps. A guide plate and a flap tucker assembly are provided above the package plate to close the leading and trailing top minor flaps respectively as the case moves forwardly. Glue guns then apply adhesive to the upper minor and lower major flaps. Thereafter as the case moves along the slide plate, the major flaps move into contact with closure members to close the major flaps, and then the flight bars move the case through a compression roller assembly. The package plate includes a hingedly mounted entry portion that is resiliently retained in an entry position while the drive mechanism for the chains includes adjustable stop mechanism to discontinue the chain drive to provide overload protection. An indexing assembly is provided to control the infeed of cases in timed relationship with the movement of the flight bars.
REFERENCES:
patent: 3496697 (1970-02-01), Loveland et al.
patent: 3680685 (1972-08-01), Halton
Livingston Ralph H.
Rawlins Philip G.
Bemis Company Inc.
McGehee Travis S.
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