Package making – With contents treating – Reshaping
Patent
1987-06-09
1988-10-25
Coan, James F.
Package making
With contents treating
Reshaping
53502, 53551, B65B 130, B65B 6302
Patent
active
047794020
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention is based on an apportioning and packaging device according to the generic part or the main claim. Various coarse flocculent and particulate products, such as cereals and potato chips, etc., have a specific weight which fluctuates within a wide range. When such products are apportioned in quantities with a predetermined weight and packaged in packing containers of a determined magnitude, the consumer has the impression with many packages that they are not correctly filled. In addition, because of the fluctuating volume, difficulties arise in the use of flexible packaging, such as bags, when sealing and when handling the bag packaging when inserting into individual or collective boxes with a predetermined dimensioning. Therefore, it is worth striving for an apportioning and packaging machine in which a substantially uniform volume of the packages is achieved in spite of fluctuating specific weight of the quantities of packing product.
ADVANTAGES OF THE INVENTION
The device, according to the invention, with the characterizing features of the main claim, has the advantage that these quantities of breakable particulate product, which are apportioned according to weight, are given a determined volume in a simple manner by means of breaking individual pieces, or by means of compression, after weighing and prior to insertion in a packaging container, so that the individual quantities already have the desired volume when packaging.
Advantageous constructions and improvements of the device indicated in the main claim are made possible by means of the steps listed in the subclaims. It is particularly advantageous to assign a secondary apportioning device to the conveying device so that an additional portion can be added to the main quantity when the volume of the quantity of packing product is too small, in order to achieve the desired volume of the packaged quantity. In addition, other components or advertising articles can be added to the product quantities and packaged together with the latter by means of arranging an addition device at the conveying device.
DRAWING
An embodiment example of the invention is shown in the drawing and is described in more detail in the following description.
FIG. 1 shows an apportioning and packaging machine in circumferential section in simplified presentation, and
FIG. 2 shows a filling height sensing device in cross section, which is assigned to the conveying device of the apportioning and packaging machine according to FIG. 1.
DESCRIPTION OF THE EMBODIMENT EXAMPLE
Individual quantities of packing product 10, consisting of a pourable particulate product, are apportioned one after the other according to weight by a weighing device 11 and delivered to a conveying device 12 which feeds the quantities to a packaging device 13, for example, to a bag forming, filling, and sealing machine, known per se. The latter has a vertical filling and forming pipe 14 around which a packing material sheet 15 is shaped into a tube 16 which is divided into bag packages 17 in a stepwise manner with a set of jaws 18 and is removed in a stepwise manner from the filling and forming pipe 14 through which a quantity of packing product 10 arrives in a bag package 17 which is already finished. Since the length of the removed tube 16 and, accordingly, the height of the bag packages 17 are uniform, the thickness of the produced bag packages 17, or the possibility of sealing them correctly, depends on the respective volume of the quantities of packing product 10. However, with different products consisting of particulate, bulky parts the specific weight fluctuates within a wide range.
In order that the product quantities 10, which are portioned according to weight, also have approximately equal volume for forming uniform bag packages 17, the packing product quantities 10 are not delivered directly from the weighing device 11 to the packaging device 13, but, rather, are transferred to vessels 21 of the conveying device 12 so that it is possible to process the packing product quan
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Duynhoven Adrianus V.
Leypold Helmut
Coan James F.
Robert & Bosch GmbH
Striker Michael J.
Weihrouch Steven P.
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