US 4,296,589 AGranted

Packaging machine with cam-operated cutter and container supports therefor

AssigneeDake Corporation Division of JSJ Corporation

InventorGary L. Kruse

Life of this patent

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Abstract

A packaging machine for applying and securing a continuous web of material, especially of the heat sealable type, to containers, especially open-topped containers. The machine includes an intermittently rotatable cutter for severing the web between adjacent container supports. The cutter includes camming means adjacent each end for rotating the cutter with respect to each container support to one position in readiness for further rotation between the container supports to sever the web. Support pins for carrying the container supports may be included on at least one of the supports and conveyor chains. When on the conveyor chains, support pins need be included at only some of the chain joints. The container supports may be molded from a settable material and include a convex, upward curvature to allow proper container sealing under pressure from a web applying device.

Claims14

Dependent claims

A packaging machine for applying and securing a web of material to containers comprising:

conveyor means for supporting and conveying containers in one direction along a path, said conveyor means including a plurality of spaced container support members mounted thereon;
web applying and securing means for applying and securing a continuous web of material to the containers supported by said conveyor means;
and
cutting means for separating said web of material intermediate said container support members;
said cutting means including a rotatable cutter having two ends and at least three cutting edges equally spaced in fixed positions around the exterior thereof and extending across said conveyor means, support means for rotatably supporting said cutter transversely across and above said conveyor means, said support means including camming means at each of said two ends of said cutter for intermittently rotating said cutter in a circular path, said camming means being offset circumferentially from said cutting edges;
said container support members each including at least two projecting means for engaging said camming means, at least one projecting means being aligned with one of said two camming means and at least the other projecting means aligned with the other of said two camming means whereby said cutter is intermittently rotated such that said cutting edges are rotated to a first position by said one projecting means engaging said one camming means and thereafter rotated through a second position between said container support members to sever said web of material therebetween by said other projecting means aligned with the other of said two camming means.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/069,100Filed 23 Aug 1979 · continuation in part
Priority: 9 May 1978
Granted: 27 Oct 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B65B 59/005
Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages…
B65B 7/164
By feeding web material to securing means: securing by heat-sealing
B65B 43/52
Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins,…
B65B 59/003
Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages…