JPS6351927B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a quantitative feeding device for solid preparations that can be used in an apparatus for automatically inspecting solid preparations such as capsules and tablets.

(Prior Art) When solid preparations such as capsules and tablets are automatically inspected or counted, conventionally screws, slot conveyors, drums, etc. have been used. However, the screw method had a low filling rate and was not compatible with the conveying device (conveyor or turntable) after individual separation. Slat conveyor and drum systems are suitable for multiple rows, but the former requires a large space in the longitudinal direction, and the latter requires a large space in the vertical direction.

(Problems to be Solved by the Invention) The present invention solves problems such as the low filling rate of conventional transport methods, poor compatibility with transport equipment after individual separation, and the need for a large space. This is what we are trying to solve.

(Means for Solving the Problems) Therefore, the present invention provides a rotating supply ring having a plurality of storage openings for solid preparations at regular intervals along the inner circumferential surface, and a rotating supply ring having a plurality of storage openings for storing solid preparations at regular intervals on the lower side of the supply ring. , and has a rotation center biased to one side with respect to the rotation center of the supply ring, is arranged so as to form the bottom surface of most of the storage opening excluding the solid preparation discharge part, and rotates in the same direction as the supply ring. At the same time, a disc whose peripheral speed on the outer periphery is set to be slightly smaller than the peripheral speed of the storage opening on the inner peripheral surface of the supply ring, and a disc located at almost the same height as the disc surface, and located at the storage opening of the discharge part. A receiving plate arranged to form a lower surface and having a drop hole for the solid preparation, and a drive mechanism for driving the supply ring and the disc at the relative circumferential speed,
This is a means to solve problems.

(Function) The solid preparation that has fallen onto the table is fed into the storage opening of the supply ring as the disk rotates. When the supply ring rotates and approaches the discharge section, the solid drug in the storage opening is removed from the disc, slides on the receiving plate, and is supplied from the drop hole onto another conveying device in a fixed amount and at a fixed pitch. Ru.

(Example) An example of the present invention will be described above with reference to the drawings. Fig. 1 is a plan view of a quantitative feeding device showing one embodiment of the present invention, and Fig. 2 is a sectional view of the same side. The solid preparation 5 fed from the left side in the figure by a linear feeder (not shown) or the like falls onto the table 3. The central part of the table 3 is mountain-shaped as shown in 3a of FIG. 2, and the solid preparation 5 rotates while being brought to the outer periphery of the table 3 by gravity and centrifugal force.

The table 3 is rotationally driven by a drive mechanism 6. The rotation center O of this table 3 is the rotation center of the supply ring 2, which has storage openings 1 opened at regular intervals on the inner peripheral surface at an angle inclined in the rotation direction.
Since it is shifted to the right as shown in Figure 1 with respect to O ₁ ,
As the table 3 rotates, the solid preparation 5 near point A is fed into the storage port 1 of the supply ring 2 by the point B. This is because the bottom plate of the storage port 1 is formed by the top surface of the table 3, so that the food can be fed in smoothly. A gear 7 is formed on the outer peripheral surface of the supply ring 2, and rotation is transmitted through gears 8, 9, 10, a pulley 11, a belt 12, and a pulley 13 fixed to the drive shaft of the drive mechanism 6. It's getting old.

After passing through point B, the solid preparation 5 that has entered the storage port 1 attempts to come out of the storage port 1 due to the rotation difference between the storage port 1 and the table 3, but the storage port 1 is located at the rotation center O ₁ of the supply ring 2. On the other hand, since the peripheral speed of the inner circumferential surface of the supply ring, which is opened at an angle so as to be inclined in the direction of rotation and has the storage opening 1, is set to be larger than the peripheral speed of the table 3, the solid preparation 5 is held in the storage opening 1.

After the supply ring 2 rotates further and passes point C, the solid preparation 5 comes off the table 3 and slides on the receiving plate 4 installed at the same height as the table 3. Point D is separated individually by supply ring 2;
This is the place where the solid preparation 5, which has been transported at a constant pitch and at a constant speed, falls through the hole 14 of the receiving plate 4 and is transferred to another transport device (not shown). Note that 15 is a protective wall for preventing the solid preparation that has fallen onto the table 3 from directly going to the point D portion.

At this hole 14, the solid preparation 5 will fall onto another conveyance device by a minimum distance equal to the thickness of the solid preparation 5, but since this falling distance is extremely short, the solid preparation 5 on the conveyance device will The pitch error is negligible. Note that if the speed of the other conveyance devices is made variable, the storage opening 1 on the supply ring 2 can be
The pitch of the solid preparation on the conveying device can be changed without changing the pitch of the solid preparation, and the conveyed amount remains unchanged.

(Effects of the Invention) As described above in detail, the present invention provides a rotating supply ring having storage openings at regular intervals along the inner circumferential surface and a disk, since the center of rotation is eccentric. The supplied solid preparation is naturally and reliably stored in the storage opening by the rotation of the disk without any external action, and eventually falls from the storage opening of the discharge section into the drop hole on the lower surface. Therefore, it is possible to supply solid dosage forms in one row at a fixed pitch, and only the thickness of the solid dosage form needs to fall from the drop hole of the receiving plate to other conveying devices, which shortens the falling distance. Therefore, there is almost no pitch error in solid preparations due to dropping.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a quantitative supply device for solid preparations showing an embodiment of the present invention, and FIG. 2 is a sectional view of the same side. Explanation of main parts of the diagram 1...Storage port, 2...Supply ring, 3...Disc, 4...Receiver plate, 5...Solid preparation, 6
... Drive mechanism, 7, 8, 9, 10... Gear, 11, 1
3...Pulley, 14...Drop hole.

Claims (1)

[Claims] 1. A rotating supply ring having a large number of storage openings for solid preparations at regular intervals along the inner circumferential surface, a rotating supply ring located on the lower side of the supply ring and close to it, and rotating biased to one side with respect to the center of rotation of the supply ring. It is arranged so as to form most of the bottom surface of the storage opening except for the solid preparation discharge part, and rotates in the same direction as the supply ring. A disk whose circumferential speed at the outer periphery is set to be slightly smaller than the circumferential speed, and which is located at approximately the same height as the surface of the disk and is arranged so as to form the lower surface of the storage opening of the discharge section, 1. A fixed-quantity supply device for solid preparations, comprising: a receiving plate having a drop hole; and a drive mechanism that drives the supply ring and disk at the relative circumferential speed.