Package making – Wrapping machines – Cover-wiping passage or pocket for initial wrap
Patent
1987-05-04
1988-10-11
Coan, James F.
Package making
Wrapping machines
Cover-wiping passage or pocket for initial wrap
53532, B65B 1126
Patent
active
047761490
ABSTRACT:
The invention relates to a device for packaging a row of covers placed coaxially of one another in a sheet of packaging material, comprising successively in the packaging direction: a feed station for the row of covers; a wrapping station for wrapping said row of covers in said sheet; a folding station for folding end wall and longitudinal fold edges of the sheet wrapped around the row of covers; and adhesive station for adhering fold edges to the packaging; and transport means for transporting the row of covers, which is characterized in that the folding station comprises gripping means gripping onto the wrapped packaging material from outside, which means hold the packaging material away from the row of covers during forming of the longitudinal fold.
Preferably the device comprises an adhesive support which can move axially reciprocating relative to a row of covers present in the folding/adhesive station and accommodated in a sheet of packaging material and which forms a support for the longitudinal fold edges to be adhered.
Tipping over of covers out of the row is prevented if further the adhesive support can move to a position P at an interval p from the row of covers, and that said adhesive support takes the form of a cylinder, the section of which corresponds substantially with that of said row of covers and which is provided with means for generating an underpressure in the space lying between said row of covers and said adhesive support, as a result of which a packaging constriction is formed.
The invention relates further to rows of covers packaged in packaging material according to the invention.
REFERENCES:
patent: 1757079 (1930-05-01), English
patent: 3538992 (1970-11-01), Chauhan
patent: 3866389 (1975-02-01), Elsner et al.
patent: 4020617 (1977-05-01), Sickinger
patent: 4209960 (1980-07-01), Deutschlander et al.
patent: 4651500 (1987-03-01), Chaffey
patent: 4669248 (1987-06-01), Vrind et al.
Coan James F.
Snyder John P.
Thomassen & Drijver-Verblifa NV
Weihrouch Steven P.
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