Package making – With means responsive to a sensed condition – Of receptacle or cover feed or adjunct feed or application
Patent
1981-01-15
1987-03-10
Kazenske, E. R.
Package making
With means responsive to a sensed condition
Of receptacle or cover feed or adjunct feed or application
53 25, 53386, 53571, 141 68, 141114, 141166, B65B 4350
Patent
active
046482342
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
The invention relates to an automatic bag-loading apparatus for placing valve bags onto the spouts of a bag-filling machine.
BACKGROUND OF THE INVENTION
Rotary bag-fillers have been proposed having several beaks or spouts for granular, powdery or similar materials. These machines consist essentially of a generally cylindrical silo that revolves on its base. On the outside walls are a series of bagging stations that basically consist of spout or beak bag-fillers upon which self-closing valve bags are placed and having also weighing stations by which the exit of material from the spout is shut off when the desired weight is reached. The bag is then expelled and moved away by conventional means.
For these machines to function, one or more workers are required placed near the bag loading area who must take the bags from the pile, open the bag valve by hand as well as place the bag onto the filler spout.
Certain machines are known that place the bag onto the spout automatically, however, these machines have a complicated device for each spout enabling the spout to assume two positions: one, at a tangent to the rotation of the bagging machine that corresponds to the in motion placement position of the bag and a radial position from which the bag may be filled with material.
It is known that these devices apart from the fact that they must be constructed with the bagging machine-given that they form a part of the bagger (spout or beak)-, have various disadvantages, particularly in the case of a stuck bag-valve. They are not very reliable in operation owing to the way in which they operate which causes a jolt each time a stationary bag is caught up by a moving spout.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a simply made and precise bag loading device consisting essentially of a carousel that carries bag-placing grippers at the ends of a set of arms. This carousel is caused to rotate by the bag filling machine itself by means of a synchronizing mechanism mounted near the spout and capable of carrying with it the bag-placing gripper, accelerating the rotation of the carousel and guiding the said gripper provided with a bag face to face with the spout. The placing only takes place when the spout and the bag gripper are moving at the same rotational speed.
Such a device according to the invention can be used with any type or size of bag filler, new or old, without any significant modification. That is to say, one must only adapt the relative axis position of the rotation and the length of the guide arms to the diameter and the number of spouts of the bag filler being used.
The illustrations appended hereto serve to clarify this description by indicating those parts that make up the attachments of the invention and its various working operations. They give a clearer idea and better understanding of the invention in particular by limiting each drawing to the essential parts of the apparatus.
Certain conventional parts and items have not been described or indicated in the illustrations (valves, pipes, motors) which control the movement of the various components, likewise the schematics or the devices (relays, microswitches, etc.) which control the various movements which the machine must execute during the sequence, since they are only a basic set of electro or mechanical pieces of equipment used during the functioning cycle of this machine in operation.
In the following a preferred embodiment of the invention is described with particular reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a machine according to the invention from above during the gripping phase with the bagging stations of the bagger;
FIG. 2, shows the same machine from above, but during the set down or release phase of the same bagging station of the bagger;
FIG. 3, shows a side view of the machine during the placing of a bag onto the spout, which is in practice the intermediate position between the positions according to FIGS. 1 and 2;
FI
REFERENCES:
patent: 3213588 (1965-10-01), Peterson
patent: 3312038 (1967-04-01), Knauf
patent: 3884278 (1975-05-01), Nakashima
patent: 3952479 (1976-04-01), Achelpohl
patent: 4213287 (1980-07-01), Knorr
Folkerts Michael D.
Jecies Saul
Kazenske E. R.
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