Cold co-cycling bag closure imprinting and bag closing machine
OwnerJerre H. Paxtoninventor
Life of this patent
Estimating the term…
Abstract
An improved bag closure imprinter is substituted for the various styles of printing devices heretofore associated with the closure applying system of the Kwik Log Bag Closing Machine, (No. 1081) shown basically in U.S. Pat. No. 3,163,972, issued Jan. 5, 1965. The new cold tape ink bag closure imprinter is fixed on top of the tower-like frame of the bag closing system and becomes an integral part of the bag closing machine. Although having its own drive motor and clutch, the printer is individually cycled successively at a given point in each cycle of the closing system so as to fully coordinate both departments of the machine.
Claims36
A cold, dry co-cycling bag closure imprinting and bag closing machine adapted to be mounted alongside a conveyor delivering partially loaded slack necked polyethylene bags in a uniformly arranged serial order along a given path leading to and through a work station, said machine comprising:
- a cyclically clutch powered means for intermittently advancing flat springy sheet plastic bag closures, each closure having a bag neck trapping aperture, along a different path leading to said work station to successively position such a closure with respect to each loaded bag as said bag is delivered to said work station, to present a slack neck portion of said bag to said bag neck trapping aperture in said closure;
- means for gathering into the trapping aperture of the closure the slack bag neck presented thereto;
- means for releasing said closure to allow it to depart with said bag from said machine;
- an independently cyclically clutch powered cam actuated imprinter for cold-dry printing data on each of said closures during a pause in its travel along said closure path of advance;
- and
- trigger means responsive to said cyclic closure advancing means to activate and time the cyclic action of said imprinter.
In a cold, dry co-cycling bag closure imprinting and bag closing machine, the combination of:
- means for lineally guiding flat springy sheet plastic bag closures, each closure having a bag neck trapping aperture, said closures being separably joined edge to edge in strip form, to a work station;
- means for successively engaging the slack necks of a series of partially loaded flexible plastic bags delivered to said station and gather the neck of a leading bag into the aperture of the endmost of said closures;
- clutch powered means cyclically triggered by said leading bag to separate said endmost closure from said closure strip allowing it thus to depart from the machine with said leading bag and then advance said strip the length of the next closure to present such closure to said work station to receive the bag neck of the next bag of said series;
- an independently cyclically clutch powered cam acutated imprinter for cold-dry printing data on each of said closures during a pause in the travel of said closure strip in said strip guiding means;
- and
- trigger means responsive to said cyclic closure advancing means to activate and time the cyclic action of said imprinter.
An imprinter adapted to be readily incorporated as an accessory unit with a bag closing machine for printing data on a closure strip being fed intermittently into said machine in timed relation with the advancing of partially loaded flexible bags to said machine whereby an individual closure is applied to each of said bags and then separated by said machine from said strip, said imprinter comprising:
- a flat plate frame means;
- means for rigidly securing said frame means to said machine;
- anvil means on said frame means backing up said closure strip in a given printing area during intermittent pauses in the feeding of said closure strip;
- a cam shaft parallel with the operative face of said anvil means;
- bearing means on said frame means in which said shaft journals;
- a cam fixed on said shaft in a plane bisecting the operative face of said anvil means;
- a type face carrying printing block;
- means for guiding said block into and out of printing relation with said closure strip in said printing area;
- cam follower means, spring-biased into constant engagement with said cam, said means being connected operatively with said printing block, the contour of said cam producing a single printing impression on said closure strip with each revolution of said cam;
- a single revolution clutch mounted on said cam shaft;
- a reduction-geared continuously running motor power means connected to said clutch;
- means for feeding a dry-cold foil ribbon between said type and said closure strip in said printing area;
- means for triggering said clutch to produce a printing impression during each pause in travel of said closure strip;
- and
- means for actuating said ribbon feed means to advance said ribbon during each intermittent movement of said closure strip.
An imprinter adapted to be incorporated as an accessory of and be embodied with a bag closing machine, the latter receiving at a work station a series of partially loaded soft flexible plastic bags and guiding to said station a series of stiff springy sheet plastic closures united separably end-to-end in strip form, each closure having a bag neck capturing aperture recessed in a side edge thereof, said machine including means for gathering the slack neck of each of said bags in the aperture of an endmost closure of said strip and having means functioning in timed relation with said gathering means to separate said endmost closure from the strip and advance the strip to bring the next closure therein to said station, said closure separating and strip advancing means being actuated by the cyclic rocking of a shaft, first, in one direction to separate said endmost closure and then, in the opposite direction, to advance said strip the length of one closure, said imprinter comprising:
- a frame having means for rigidly securing said frame to said machine;
- anvil means fixed rigidly to said frame in a position to closely back up said closure strip in a selected printing area;
- type carrying block means supported on said frame vis-a-vis said anvil means;
- means on said frame for guiding a cold-dry foil ribbon through said printing area between said type and said closure strip;
- a cam rotatably mounted on said frame on an axis in spaced parallel relation with said block means;
- cam follower means connected to said block means and spring biased into constant pressure against said cam whereby a single revolution of said cam will produce a printing impression of said type on said closure strip;
- a single revolution clutch co-axially connected to said cam;
- geared down continuously running electric motor power means connecting to said clutch;
- an arm adapted to be fixed on said bag closing machine shaft;
- means connected to said arm and actuated thereby for triggering said clutch upon the first rocking of said shaft in a closure separating phase of operation of said bag closing machine;
- and
- means connected to said arm for advancing said printing foil ribbon through said imprinter responsive to the return rocking of said shaft during the closure strip advancing phase of operation of said bag closing machine.
Dependencies are inferred from the claim text.