Package making – With contents treating – Reshaping
Patent
1986-03-04
1987-10-13
Coan, James F.
Package making
With contents treating
Reshaping
53202, 53276, B65B 4326
Patent
active
046989536
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a bag filling apparatus for a packaging machine and more particularly, but not solely, to an apparatus for filling and handling tobacco pouches.
STATEMENT OF PRIOR ART
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 measured portions of tobacco into pouches involving significant forces due to inertia or friction.
OBJECT OF THE INVENTION
It is an object of the invention to substantially increase the packaging speed to say in excess of 120 packages per minute.
SUMMARY OF THE INVENTION
According to the present invention there is provided an apparatus for filling and handling bags with material in strand or other particulate form comprising sequential indexing, material to be packaged as each station is indexed at a material delivery position, each chamber being defined by of material within the chambers, station is indexed at a bag receiving position, and said bags in pairs as each station is indexed at a material transfer position.
By effecting simultaneous filling of pairs of pouches on a single turret, the overall handling speed is doubled in comparison with known packaging machines.
BRIEF DESCRIPTION OF DRAWINGS
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 machine;
FIG. 2 shows a plan view of a filling turret according to the invention;
FIG. 3 shows a section along the line A--A of FIG. 2;
FIG. 4 shows a side elevation of a selector chute;
FIG. 5 shows a front view of the selector chute shown in FIG. 4; and
FIG. 6 shows a section through one of eight faces of a turret.
DESCRIPTION OF PREFERRED EMBODIMENT
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 weighted 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 of the turret which indexes through a distance equivalent to two hoppers, the tobacco portions being fed into the selector chute from the bucket conveyor 3.
With reference to FIGS. 2 to 5 there is shown a selector chute 20 arranged above turret 1 which has pairs of stations a and b and is rotatable in the direction of arrow B into eight positions I, II, III, IV, V, VI, VII and VIII. At position I two pouches are transferred to the turret and clamped onto the turret. As the turret moves from position II to position III tobacco is compacted in filling chutes and both pouches are lifted up so that filling chutes enter pouches and at position III tobacco is pushed into the pouches. As the turret moves from position III to position IV the pouches are removed from the filling chutes and compaction rams in the filling chutes open. At position V the pouch clamps are released and the pouches are removed from the turret.
The selector chute 20 is provided with lugs 21 which are pivotably mounted. Pivotably mounted on chute 20 is a link arm 22 which carries, at its end remote from the chute 20, a link arm 23. The link arm is pivotably mounted between its ends at 24. The link arm 23 carries, at its end
REFERENCES:
patent: 2667997 (1954-02-01), Vogt
patent: 2671587 (1954-03-01), Vogt
patent: 3903674 (1975-09-01), Brush et al.
patent: 4330252 (1982-05-01), Bullock et al.
patent: 4448008 (1984-05-01), Pankratz et al.
Esch Friedrich D.
Price John G.
AMF Incorporated
Coan James F.
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