JPS6347436Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for feeding cores to a transfer disk of a rotary core tablet machine.

In general, rotary dry-coated tablet machines are shown in Figs.
As shown in the figure, a large number of dies 2 are arranged on a rotary disk 1.
The cores 6 in the holes 5 provided in the transfer disk 4 are sequentially placed on the powder 3 in the powder 3, and then the powder 3 is covered and compressed by the compression roll 7 to form a dry-coated tablet. The reference numeral A on the rotary disk 1 shown in FIG. C is the second powder supply position, D is the compression molding position by the compression roll 7, and E is the take-out position of the dry-coated tablet 8. 6 and the state of the dry-coated tablet 8 etc. are shown in FIG.

In addition, in FIG. 2, 13 is a lower punch, 14 is an upper punch, 15 is a damper, 16 is a first feedstock,
17 is a second feedstock.

In a conventional device for supplying cores to a transfer disk in such a rotary core tablet machine, as shown in FIG. A receiving plate 20 is disposed by a receiving seat 21 immediately below the transfer disk 4, and a large number of nuclei 6 in the pipe 9 are inserted into the holes 5 of the transfer disk 4. When supplying tablets one by one, there was a fatal drawback that as the rotational speed of the tablet machine, that is, the rotational speed of the transfer disk 4 increased, the nuclei 6 jumped up and out of the holes 5 of the transfer disk 4.

The reason is that the surface of the nucleus 6 is a mountain-shaped curved surface.
At the moment the nucleus 6 supplied from the inside of the pipe 9 into the hole 5 of the transfer disk 4 is displaced in the traveling direction due to the rotation of the transfer disk 4, it is turned sideways due to the weight of the other nucleus 6 above it. This is because they are pushed by

This invention is an improvement on the conventional nuclear feeding device to the transfer disk, which has such drawbacks.
The configuration will be explained below with reference to the drawings.

This invention involves sequentially placing the cores 6 in the holes 5 provided in the transfer disk 4 on the powder 3 in the mortars 2 provided in the rotary disk 1, and then covering the powder 3. In a rotary dry-coated tablet machine which continuously takes out dry-coated tablets 8 by compression molding with a compression roll 7, a pipe is disposed in and above the hole 5 of the transfer disk 4. 9, a receiving plate 10 is disposed immediately below the transfer disk 4 located below the pipe 9, and a suction hole 11 is provided in the receiving plate 10. and a suction hose 12 is disposed in communication with the suction hole 11, and the suction hose 12 suctions the nucleus 6 to the extent that it does not fly up. This is a device for feeding cores to the transfer disk of a core tablet machine.

In the above configuration, the suction hole 11 is provided offset from the center line of the pipe 9 arranged above the transfer disk 4 in the direction opposite to the rotational direction of the transfer disk 4, as shown in FIG. I can do it.

In this case, the nuclei 6 supplied into the holes 5 of the transfer disk 4 can be transferred more stably.

The suction force of the suction hose 12 depends on the degree of vacuum.
It may be set to 0.05 to 0.1Hg.

In the drawing, 18 is a guide groove for the nucleus 6 to the hole 5 provided in the transfer disk 4, 19 is a sliding table disposed immediately below the transfer disk 4, and 22 is a receiving seat of the receiving plate 10. It shows.

As explained above, according to the device for supplying nuclei to the transfer disk of the rotary core tablet machine of this invention, it is possible to feed the nuclei in the pipe one by one into the holes of the transfer disk. It is configured to suck the nuclei supplied into the holes of the transfer disk from the suction holes provided in the receiving plate located immediately below the transfer disk to the extent that they do not fly up when the nucleus hits the transfer disk. Because of this, it is possible to reliably prevent the cores from flying up and flying out, which was a fatal drawback when supplying the cores in conventional supply devices, and it is possible to produce good dry-coated tablets.

This makes it possible to increase the rotational speed of the tablet machine, thereby significantly improving the tableting capacity.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of a rotary core tablet machine, Fig. 2 is a sectional view showing the inside of the mortar at each position shown in Fig. 1, and Fig. 3 is a transfer of the present invention. A sectional view showing an example of a nuclear supply device to a disc,
FIG. 4 is another sectional view of the present invention, and FIG. 5 is a sectional view showing a conventional nuclear feeding device to a transfer disk. In the drawings, 1 is a rotary disk, 2 is a mortar, 3 is a powder, 4 is a transfer disk, 5 is a hole, 6 is a core, 7 is a compression roll, 8 is a cored tablet, 9 is a pipe, 10 is a receiving plate, 11 is a suction hole, 12 is a suction hose, 18 is a guide groove, 19 is a slide table, and 22 is a receiving seat.

Claims (1)

[Scope of claim for utility model registration] 1. Powder 3 in mortars 2 arranged in large numbers on rotary disk 1
Nuclei 6 in the holes 5 arranged in large numbers on the transfer disk 4 are sequentially placed on top of the transfer plate 4, and then the powder 3 is covered and compression molded by the compression roll 7 to continuously form dry-coated tablets 8. In a rotary core tablet machine adapted for ejection, a number of cores 6 in a pipe 9 arranged in and above the bore 5 of the transfer disk 4
When feeding one piece at a time, a receiving plate 1 is placed directly below the transfer disk 4 located below the pipe 9.
0, a suction hole 11 is provided in the receiving plate 10, and a suction hose 12 is provided below the suction hole 11 so as to communicate with the suction hose 12 to prevent the nucleus 6 from flying up. 1. A device for supplying cores to a transfer disk of a rotary core tablet machine, characterized in that the cores are sucked to a certain degree. 2. A request for registration of a utility model characterized in that the suction hole 11 is provided offset from the center line of the pipe 9 arranged above the transfer disk 4 in a direction opposite to the rotational direction of the transfer disk 4. A device for supplying cores to a transfer disk of a rotary core tablet machine according to item 1.