Coating apparatus – Program – cyclic – or time control
Patent
1995-02-08
1996-11-26
Edwards, Laura
Coating apparatus
Program, cyclic, or time control
118712, 118306, 118317, 118323, 118DIG3, 156356, 156578, B05C 500
Patent
active
055781284
ABSTRACT:
An apparatus is provided according to the present invention for applying a glue bead to a round and non-round container to seal a fitment therein. The container includes a side wall formed about a longitudinal axis and having a closed end and an open end. The apparatus includes a base for holding the container in a fitment applying position and a hot melt glue gun for applying a layer of glue about an interior perimeter of the container to form an adhesion region. The adhesion region extends about the interior of the side walls immediately adjacent the open end thereof. The glue gun is suspended from a rotary bearing assembly which drives the gun about a longitudinal axis of the container as glue is sprayed thereon. A drive pulley, connected to the gun, is remotely driven via a belt and shaft arrangement by an electric motor. The electric motor is controlled to vary the rotational velocity of the gun dependent upon its angular position relative to a starting point to adjust for changes in the radial distance between the gun and the container. The velocity is adjusted such that the spray gun rotates faster when directed towards a portion of the side wall which is close to the spray nozzle and slower when the nozzle is directed toward a portion of the side wall which is remotely located therefrom. By adjusting the rotational velocity of the glue gun, an even bead of glue is applied.
REFERENCES:
patent: 2046592 (1936-07-01), Tracy
patent: 2895449 (1959-07-01), Oldfield, Jr.
patent: 4259372 (1981-03-01), Eddy
patent: 4564410 (1986-01-01), Ceitheros et al.
patent: 4774905 (1988-10-01), Nobis
patent: 4976797 (1990-12-01), Calvert et al.
Edwards Laura
Sealright Co. Inc.
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