Package making – Apparatus for forming or partially forming receptacle and... – Forming a pocket – depression – or hollow compartment by...
Patent
1986-10-03
1988-02-23
Culver, Horace M.
Package making
Apparatus for forming or partially forming receptacle and...
Forming a pocket, depression, or hollow compartment by...
53389, B65B 4704, B65B 4708, B65B 4710, B65B 4114
Patent
active
047261730
ABSTRACT:
In a machine for making sealed containers such as blister packages, the continuous feeding of the films (1, 7) for the formation and sealing of the containers is effected alternately by at least one unit of side clamping grippers (13) and by a unit comprising the stations operating cyclically on the films, namely, a heating station (3), a container-forming station (4), a sealing station (6) and a cutting station (8). The grippers and stations are movable on rectilinear guides (11, 12) disposed parallel to the path of travel of the films, and the operative units are reciprocated over the guides by a mechanism comprising a single cylindrical cam (24) having a closed helical outline or profile that is followed by two cam-followers (21-21') angularly spaced 180.degree. from each other and slidable on stationary guides p parallel to the axis of the cam. The length of the cam profile that causes the advancing movement of the stations or grippers, and consequently the feeding movement of the films, has an angular extent larger than the length of the profile that causes the reverse movement of the operative units, whereby the latter operate together and synchronously during a fraction of the advancing stroke and whereby said films are engaged at all times by either one of said operative units when the other one reverses to effect the return stroke.
REFERENCES:
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patent: 3808772 (1974-05-01), Turtschan
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patent: 4069645 (1978-01-01), Vetter
patent: 4094127 (1978-06-01), Romagnoli
patent: 4217163 (1980-08-01), Utzmann et al.
Culver Horace M.
Newpack S.p.A.
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