Package making – Closing packages and filled receptacles – Including provision for pleat of cover overhang
Patent
1974-12-02
1976-07-13
Simpson, Othell M.
Package making
Closing packages and filled receptacles
Including provision for pleat of cover overhang
B65B 712
Patent
active
039686272
ABSTRACT:
A device to be mounted on a wrapping machine to fashion the wrap on candies or similar products in "single end" or "double end" twist styles of wrap. An axially sliding sleeve has a pair of twist fingers symmetricaly pivoted to one of its ends. A rod slides in an axial direction in the inside of the sleeve for opening and clising the fingers. Gear means are provided for causing the sleeve and the rod to rotate in unison, and for cooperation with a pair of gears for sliding the sleeve and rod. One of the gears of this pair is mounted rotatably and slidably on the rod; the other is mounted rotatably but non-slidingly on the sleeve. The gears of this pair have inclined web structures. In conjunction with fixed guide rollers they operate the rod so that it is given a reciprocating movement with respect to the sleeve.
One gear in each pair is connected to the said gear means that cause the sleeve and the rod to rotate in unison, whilst the other, mounted in a rotatable but non-sliding way on the sleeve, rotates and slides in contrast with the aforementioned flexible means on the rod. The gears mentioned last, structured in their plane of rotation, are helical and behave like a front type cam, so as to operate, in conjunction with the fixed guide and support pressure means, the said rod so that it is given a flexible movement with respect to the sleeve and both the said sleeve and the said rod jointly with a reciprocating movement.
On the said device the fingers of the twist finger assemblies are operated without the aid of cams and levers; thus the said device can be used in conjunction with very high unit output speed wrapping machines producing something in the region of a thousand and more wrapped products per minute.
REFERENCES:
patent: 3279149 (1966-10-01), Latini et al.
Adams Bruce L.
Burns Robert E.
G. D. Societa per Azioni
Gilden Leon
Lobato Emmanuel J.
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