JPS6140426B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an apparatus for filling powder into hard gelatin capsules, etc., in which the powder in one filling container is filled into many holes of one periodically rotating metering disk. The compressed powder piece formed in the hole by this filling is transferred to the lower half of the capsule already prepared below the hole of the metering disk through the plunger. It relates to things that can be pushed through.

In one known example of a device for filling hard gelatin capsules, the filling of the powder takes place directly into the lower half of the capsule by means of a filling plunger (DE 1174244). In the case of this known example, the lower half of the capsule is located inside a number of holes in a periodically rotating disk, on which a powder-accommodating chamber is provided, partially covering the disk. A filling container having individual chambers is arranged. The stuffing plunger is located inside the individual chamber. In such a device, a problem arises in that, with the periodic rotation of the disk, the powder moves in the direction of rotation of the disk and is deposited along one wall of the filling container. In such a case, the mixing of the powders will exhibit undesirable segregation and, furthermore, some of the powder will escape through the gap created between the side wall of the filling container and the disc holding the capsule. A further disadvantage of this loss of powder is that the metering disk becomes contaminated by the escaping powder.

In order to ensure accurate dosing and a sufficiently firm filling, such known devices do not charge the powder directly into the lower half of the capsule into the holes of the dosing disk. It has now been modified to include stuffing. For this reason, the hole in the metering disk is formed with a size corresponding to the amount of powder to be filled.
Underneath such a dosing disc, a lower half of the capsule is provided for forcing the compressed powder into the bore of the dosing disc.

The object of the present invention is to provide an apparatus for filling powder into hard gelatin capsules and the like, which avoids undesirable component separation of the mixed powder and prevents loss of the powder.

The present invention solved this problem as follows.
That is, the filling container and the metering disk are combined into one structural unit. In this case, the metering disk is constructed as the bottom of a filling container, which consists of an outer peripheral wall surrounding the metering disk and a lid with holes for the filling and delivery plungers. . In the area of the transfer plunger for forcing the powder compact into the lower half of the capsule, a distribution element is provided which scrapes the powder in this area from the metering disk. This distribution element is also used at the same time to guide the delivery plunger. The stuffing plunger is height adjustable and resiliently supported. To supply the powder to the filling container, a centrally located feed pipe connected to the lid of the filling container is used, into which the amount of powder fed onto the metering disk is measured. A conveying screw is provided for metering the powder supply in relation to the height.

A device constructed in this way ensures a careful supply of equal amounts of powder into the dosing chamber and delivery into the hard gelatin capsule, avoiding powder loss.

The invention will now be explained with reference to the exemplary embodiment shown in the drawing: As can be seen from the drawing, a metering disk 1 has a number of holes 2, of which six in each case correspond to one They are arranged together in groups. The metering disk 1 has six such groups of holes 2. The number of holes 2 in each group is 12
It may be individual.

A peripheral wall 3 surrounding the metering disk 1 and a lid 4 are provided to form a filling container. The lid 4 has a hole 5 for passing the stuffing plunger 6 and the delivery plunger 7. A supply pipe 8 is connected to the lid 4 and is associated with a conveying screw 9 for dispensing the powder.
The stuffing plunger 6 is elastically supported,
Moreover, it is configured to be adjustable via the adjustment member 10. A distribution element 11 is arranged in the area of the transfer plunger 7, which scrapes the powder from the metering disk 1 in this area;
is also designed to guide the delivery plunger 7 at the same time.

On the underside of the holes 2 of the metering disk 1 there are in each case 6
A limiting plate 12 is arranged within the five-section stuffing station with two stuffing plungers 6, which cuts through the hole 2 of the metering disk 1 from below. . In the area of the transfer station consisting of six transfer plungers 7, there are arranged a number of lower capsule halves 13 located below the boreholes 2 and containing compressed pieces of powder.
These lower capsule halves 13 are placed in holes in one disk 14 which also rotates periodically.

The working mode of the device according to the invention is as follows: The powder to be filled is transferred by means of a conveying screw 9 via a supply pipe 8 to the metering disk 1, the outer wall 3 and the lid 4.
is fed into a filled container consisting of. The powder supply in this case takes place in relation to the height of the powder located on the metering disk 1. Known means (not shown) are used for this purpose. The powder is evenly distributed onto the metering disk 1 by the periodic rotation of the metering disk 1 and thus of the filling container. When the metering disk 1 stops rotating, the powder poured into the bore 2 is compressed by the stuffing plunger 6 against a limiting plate 12 located below the metering disk 1. In this case, the air contained in the filling powder is eliminated, so that a homogeneous powder compact is obtained. Depending on the number of filling stations, each hole 2 is filled with powder five times. The weight and hardness of each powder compaction depend, on the one hand, on the height of the powder fed into the filling container and, on the other hand, on the maximum insertion of the filling plunger 6 into the bore 2 of the metering disk 1. Pressure compensation spring 1 depending on the depth and attached to the stuffing plunger 6
Affected by 5. The adjustment and post-adjustment of the stuffing plunger 6 takes place for each station via an adjustment element 10.

Distribution member 11 which also serves to guide the transfer plunger 7 within the area of the transfer station
has the purpose of cutting this range from powder. After forcing the powder compact into the lower capsule half 13 by means of the transfer plunger 7, the lower capsule half 13 is joined in a known manner (not shown) with the upper capsule half.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of an embodiment of the apparatus according to the invention, and FIG. 2 is a plan view of the embodiment of FIG. 1. Metering disk, 2. Hole, 3. Outer wall,
4. Lid, 5. Hole, 6. Filling plunger.
7. Delivery plunger, 8. Supply pipe, 9.
Conveyance screw, 10.Adjustment member, 11.Distribution member, 12.Restriction plate, 13.Lower half of capsule, 14.Disc plate, 15.Pressure compensation spring.

Claims (1)

[Claims] 1 A device for filling powder into hard gelatin capsules, etc., in which the powder in one filling container is 1
The compressed powder pieces formed in the holes are packed into the holes of two periodically rotating metering disks via a stuffing plunger, and the compressed powder pieces formed in the holes are packed into the holes of the metering disk. In the version in which the filling container is pushed via a transfer plunger into the lower half of the capsule already prepared on the underside, the filling container has a metering disk 1 as the bottom and an outer circumferential wall surrounding this metering disk 1. 3 and a lid 4 with holes 5 for filling and delivery plungers 6, 7.