Package making – With contents treating – Reshaping
Patent
1986-03-06
1987-09-29
Culver, Horace M.
Package making
With contents treating
Reshaping
53202, 53570, B65B 4328, B65B 6302, B65B 4312
Patent
active
046961461
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a packaging machine and more particularly, but not solely, to a machine for packing and handling tobacco pouches.
In known tobacco pouch packaging machines speeds of about 60 packages per minute are achieved. Speeds above this become problematical especially in view of the difficulty of transferring the pouches between operational stations where forces due to inertia or friction become significant.
It is an object of the invention to substantially increase the packaging speed to say in excess of 120 packages per minute.
According to the present invention there is provided a packaging machine comprising
(a) an intermittently rotatable pouch filling turret having a plurality of pouch receiving stations,
(b) a pouch supplier,
(c) a pouch transfer unit for taking empty pouches in sequence from said pouch supplier and delivering the pouches in pairs to a first receiving position of the filling turret, said pouch transfer unit concentric with the rotary axis of the hub, of the hub and relative change in angular acceleration and deceleration between pairs of said arms whereby the clamping plates receive the pouches in sequence at a pouch receiving position and deliver adjacent pairs of pouches to said first receiving position of the filling turret,
(d) means for supplying material to be packaged in measured portions to said turret at a second receiving position of said turret,
(e) means for discharging the measured portions from the turret into said pouches in pairs, and
(f) a pouch take-off device for taking off the pairs of filled pouches at a delivery position of said turret.
In a further form of the present invention a pouch take-off mechanism may be provided for transferring the pouches from the delivery position of the turret to another in an orientation of 180 degrees but not in the same plane as the take-off position, the mechanism comprising a rotatably mounted shaft supporting the arm on a disc, a cam plate rotatable in fixed relationship to said disc, a lever on said rotary shaft, and a cam follower on said lever engaged with a first cam surface of said cam plate.
By effecting a doubling of the empty pouch transfer unit, particularly from a pouch supplier which supplies pouches sequentially, and the simultaneous filling of pairs of pouches the overall handling speed is doubled in comparison with known packaging machines.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, wherein:
FIG. 1 shows a schematic view of a packaging 10 machine;
FIG. 2 shows a plan view of a turret;
FIG. 3 shows a section along the line A--A of FIG. 2;
FIG. 4 shows a side elevation of a selector 15 chute;
FIG. 5 shows a front view of the selector chute shown in FIG. 4;
FIG. 6 shows a section through one of eight faces of a turret;
FIG. 7 shows a plan view of a rotary transfer mechanism;
FIG. 8 shows a cross-sectional elevation of a part of the transfer mechanism shown in FIG. 7; and
FIG. 9 is a cross-sectional elevation of a pouch transfer mechanism.
The tobacco packaging machine shown in plan in FIG. 1 is formed by a line of processing stations, which line comprises a pouch packer turret assembly 1 to which is supplied portions of weighed tobacco from a 25 g hand rolled tobacco (HRT) weigher 2 via a bucket conveyor 3 and empty pouches from a pouch maker 4 via a pouch transfer unit 5. After filling the pouches are taken from the turret assembly 1 by a take-off device 6 and transferred to a pouch folder 7. The folded pouches leaving the folder are deposited on a conveyor 8 which conveys the pouches to a labelling unit 9. The remainder of the packaging line includes a take-off conveyor 10, a check weigher 11, a buffer store 12, a doffer 13, a pouch replacement device 14, an over-wrapper 15 and a boxing unit 16.
Tobacco portions are weighed by the weigher 2 and fed to the turret 1 by means of the bucket conveyor 3. The pre-weighed portions of tobacco are diverted by means of a selector chute into hoppers attached to the top o
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patent: 4608803 (1986-09-01), Araki
Esch Friedrich D.
Price John G.
AMF Incorporated
Culver Horace M.
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