Fluent material handling – with receiver or receiver coacting mea – With material treatment – Compacting
Patent
1998-12-30
2000-04-18
Douglas, Steven O.
Fluent material handling, with receiver or receiver coacting mea
With material treatment
Compacting
141 71, 141146, B65B 104
Patent
active
060503084
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The invention is based on a device for filling powder into hard gelatine capsules or the like. A device of this kind has been disclosed by DE 23 46 070 A1. The known device has pins for changing the volumes of compressed powder charges and these pins dip into bores of a cyclically rotating metering disk. With the aid of first plungers, the compressed powder charges are transferred from a filling disk into the metering disk and the sections of the compressed powder charges that protrude corresponding to the immersion depth of the pins are shorn off when the filling disk rotates further. In order to transfer the compressed powder charges into the supplied capsule bottoms by means of second plungers, the pins are first moved out of the bores of the metering disk. When the device is otherwise functioning satisfactorily, with particular types of powder, the shearing off of the compressed powder charges can cause an undesirable lack of homogeneity of the powder in the filling disk to occur. Furthermore, a costly construction and precise manufacturing of the device are required since before the transfer of the compressed powder charges to the capsule bottoms, the pins must be moved out of the bores of the metering disk each time and then dipped back in again, and for functional reasons, only a slight gap is permissible between the pins and the bores in the metering disk.
The object of the invention is to reduce the non-homogeneities of the powder in the filling disk during operation of a device of this generic type and at the same time, to achieve as simple as possible a construction of the device.
Other advantages and advantageous improvements of the device according to the invention for filling powder into hard gelatine capsules or the like ensue from the hereinafter and the description. A simpler transfer and undamaged compressed powder charges during the insertion into the capsule bottoms are achieved by virtue of the fact that the tops of the sleeves end flush with the bottom of the metering disk so that during transfer, the compressed powder charges do not have to be slid over a shoulder. It is also particularly advantageous to provide adjusting means that cooperate with the metering disk to change the volumes of the compressed charges. In this instance, no adjustment of the take-over wheel that receives the capsule bottoms is necessary, independent of the adjusted volumes.
BRIEF DESCRIPTION OF THE DRAWINGS
An exemplary embodiment of the invention is depicted in the drawings and will be explained in more detail in the description below.
FIG. 1 is a longitudinal section through a device for filling powder into hard gelatine capsules or the like, and
FIGS. 2 and 3 are longitudinal sections through a part of the device according to FIG. 1, in two end positions of the spacer disk.
DESCRIPTION OF THE EXEMPLARY EMBODIMENT
The device 10 for filling powder into hard gelatine capsules or the like, which is represented in FIG. 1, has an essentially cup-shaped metering disk 11 that rotates incrementally around a rotational axis 1 and has a hub region 12 disposed in the rotational axis 1 and a continuous side wall 13 embodied on the circumference of the metering disk 11. The open upper end face of the metering disk 11 is covered with a cap 14, which is fastened to two columns 16. The columns 16 are disposed on a table 17 that supports the device 10. A storage chamber 19 for the powder is embodied by the bottom 18 of the metering disk 11, the underside of the cap 14 and the side wall 13 of the hub region 14. The cap 14 has a centrally disposed opening 21 for the refilling of powder into the storage chamber 19. A number of groups of first bores 22, into which the sleeves 23 are firmly inserted, are embodied in the bottom 18 of the metering disk 11. The upper end faces of the sleeves 23 end flush with the bottom 18 of the metering disk 11. The sleeves 23 protrude at least partially into second bores 24 of a spacer disk 27 disposed parallel to the flat underside 26 of the metering disk 11. The spacer dis
REFERENCES:
patent: 5240049 (1993-08-01), Chiari
patent: 5855233 (1999-01-01), Bolelli
Krieger Eberhard
Kuhnle Manfred
Runft Werner
Wurst Reiner
Douglas Steven O.
Greigg Edwin E.
Greigg Ronald E.
Robert & Bosch GmbH
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