JPH0547441B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a capacity dividing device that divides medicines such as powder medicine into predetermined amounts.

[Conventional technology]

As a capacity dividing device of this type, one shown in FIG. 9 has been known. This dividing device includes a supply means 1 for supplying a fixed amount of medicine;
The drug distributing means 2' rotates at a constant speed to uniformly deposit the drug supplied from the distributing means in an annular shape, and the dividing means 3 divides and takes out the drug dispensed by the distributing means into fixed amounts. 2' is composed of a V-mass disk 61 having an annular V-mass 60 on its outer periphery, and a distribution disk 63 having an annular distribution plate 62 on its upper surface.

The V-mass disk 61 has a conical cylinder 65 that can be raised and lowered placed on a conical surface 64 formed on the outer periphery of the rotary disk, and a V-mass 60 is formed inside this cylinder 65. Rotating and distributing disk 63
It is movable upwards.

In the dividing operation of the medicine, the medicine is supplied from the supply means 1 into the V mass 60 while rotating the V mass disc 61, and after the medicine is uniformly distributed and deposited over the entire V mass 60, the medicine is divided into the V mass disc 61. 61 above the distribution disk 63 and pull up the conical cylinder 65 to transfer the drug in the V mass 60 to the distribution pan 6 of the distribution disk 63.
2. Let gravity fall onto the top. Then, the distribution disk 63 is rotated in one direction at a constant speed, and the medicine distributed on the distribution plate 62 is intermittently taken out in fixed amounts by the medicine dividing means 3. While the medicine is being divided on the distribution disk 63 in this way, the medicine is put into the V-mass 60 and the V-mass disk 61 is rotated to equalize the amount of distribution at the same time.

[Problem to be solved by the invention]

In the conventional capacity dividing device as described above, since the drug is supplied onto the distribution disk 63 via the V-mass 60, there is a problem that the drug adheres to and remains on the inner and outer peripheries of the V-mass 60. . This residual drug causes non-uniform split amounts of the drug, causes an inconvenient mixed drug situation, and impairs the efficacy of the drug.

In order to deal with such problems, conventionally, V
After dropping the medicine from the mass 60, the conical cylinder body 65
As shown in FIG. Insert within 60,
The V-mass disk 61 is rotated, and the cleaner 67 scrapes off the chemicals adhering to the inner and outer peripheries of the V-mass 60. However, with the above method, it takes a long time to completely remove the drug adhering to the inner and outer peripheries of the V-mass 60 by repeating the dividing operation, and the drug stuck to the bottom of the V-mass 60 is completely removed. There is a problem that cannot be removed.

On the other hand, in order to deal with the above-mentioned problems, the medicine is directly supplied from the supply means 1 to the distribution disk 63, and the distribution plate 62
There is an idea of omitting the V-mass disk 61 by depositing the drug uniformly on the top. That is, since the distribution plate 62 has a relatively flat shape, it is possible to easily remove the adhering medicine.

However, the distribution disk 63 is replaced by the V mass disk 61.
If the drug is rotated at the same rotation speed as the above, centrifugal force may cause the medicine to scatter from the flat distribution plate 62. Therefore, the rotation speed of the distribution disk 63 will be kept low, reducing the work efficiency of volume division. There is a problem with doing so.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a dividing device that can always accurately divide the volume of medicine without reducing the dividing efficiency.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a supply means for supplying a fixed amount of a drug, a drug distribution means for uniformly distributing and depositing the drug supplied from the supply means in an annular shape by rotating at a constant speed, and the above-mentioned drug distribution means. In a drug capacity dividing device comprising a drug dividing means that divides and takes out the dispensed drug in fixed quantities, the drug dispensing means is arranged on the upper surface from a flat surface or a shallow arc-shaped annular groove continuous in the circumferential direction. Consisting of a plurality of distribution disks each having a distribution plate and independently rotationally driven,
While stacking each distribution disk in the vertical direction,
The rotation axis of each distribution disk is shifted from the rotation axis described later so that a part of the distribution plate of the lower distribution disk is exposed from the upper distribution disk in the horizontal direction,
Elevating and lowering each dispensing disk below the drug dispensing means by rotating it in the horizontal direction around the rotation axis and raising and lowering the portion of the exposed distribution pan of each dispensing disk to position it at the dividing position of the drug dividing means. A pivoting mechanism is provided to move the supply means and the drug dividing means so that when one means faces a portion of an exposed distribution pan of one distribution disk, the other means faces a portion of an exposed distribution pan of another distribution disk. The supplying means is provided with an elevating mechanism that moves the supplying means up and down in response to the elevating and lowering of the drug dispensing means.

[Effect]

While the drug is being supplied from the supplying means to one of the plurality of distribution disks and being distributed and deposited, the drug is divided and taken out by the dividing means on another distribution disk. When the above work is completed, the dispensing means is moved up and down by the lifting/swivel mechanism, and the dispensing disk on which the medicine has been distributed and deposited is moved to the dividing position of the dividing means, and the dispensing disk from which the medicine has been taken out is moved to the supplying position of the supplying means. , perform division work, supply, and distribution work on each distribution disk. By repeating the above steps alternately, the working time can be shortened and the efficiency of the divided work can be improved.

Further, the supply means is raised and lowered by the raising and lowering mechanism in accordance with the raising and lowering of the distribution disks, and the distance of the drug being dropped onto each distribution disk is adjusted to be the same. This allows the same drug supply state to be provided to each distribution disk.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the capacity dividing device of the embodiment comprises a drug supply means 1, a drug distribution means 2, and a drug division means 3.

The supply means 1 has a vibrating feeder 5 disposed below a hopper 4 for drug injection, and in the embodiment, two hoppers 4 and feeders 5 are installed in parallel to enable continuous drug supply. It's summery. The vibration feeder 5 has a chute 6 elastically supported on a support plate 9 by an inclined spring plate 7 and a coil spring 8, and is provided with a vibrator 10 below the chute 6 for applying slight vibrations in the vertical direction. The medicine introduced from the hopper 4 is conveyed forward at a constant speed on the chute 6 by vibration, and falls from the end of the chute 6. In this case, the medicine is spread across the entire width of the chute 6 by the vibration action and is transported in fixed amounts.

An elevating mechanism 11 for elevating and lowering the supply means 1 is provided below the support plate 9. As shown in FIG. 6, this elevating mechanism 11 is constructed by inserting a vertically standing guide shaft 13 into a hole 12a of a support cylinder 12 fixed to a support plate 9 so as to be able to move up and down. Horizontal rotation axis 1 rotatably provided on the side
A cam plate 14 eccentric in the vertical direction and a bevel gear 15 are attached to 3', and the cam plate 14 is brought into contact with a roller 17 provided on a base 16.
The elevating mechanism 11 and the supply means 1 are supported by the abutting portions 4.

Further, the bevel gear 15 is meshed with a gear 19 of a rotating shaft 18a of a motor 18 attached to the support plate 9, and when the motor 18 is driven, the gear 19,
The rotating shaft 13' rotates via the cam plate 15, and the cam plate 14
rotate on the rollers 17, and the support plate 9 moves up and down along the eccentricity of the cam plate 14. Motor 1 above
8 is controlled to be interlocked with a motor 40 of a lifting/swinging mechanism 20 of the drug dispensing means 2, which will be described later.

As shown in FIGS. 1 and 2, the drug dispensing means 2 has a structure in which two dispensing disks 21 and 22 are stacked vertically, and the dispensing disks 21 and 2
An elevating/swivel mechanism 20 is provided at the bottom of the distribution disks 21 and 22 for elevating, lowering, and rotating the distribution disks 21 and 22. On the upper surface of both distribution disks 21 and 22, there is a shallow bottom that continues in the circumferential direction along the outer peripheral edge. A distribution plate 23 consisting of an arcuate annular groove is provided.

Each of the discs 21 and 22 is designed to be driven to rotate independently, and as shown in FIG.
The distribution plate 23 of the lower distribution disk 22 protrudes from the upper distribution disk 21 in plan view as shown in FIG. 2. It has become a state of being.

Further, the supplying means 1 and the medicine dividing means 3 are arranged so as to face each other with the medicine distributing means 2 in between, in a direction in which the rotational axes a and b of the divided discs U1 and 22 are deviated from each other. As a result, Figures 1 to 3
As shown in the figure, when one end of the distribution plate of the upper distribution disk 21 is located below the chute 6 of the supply means 1, one end of the distribution plate 23 of the lower distribution disk 22 is positioned below the drug dividing means 3, and vice versa. When one end of the distribution disk 22 is below the chute 6, the upper distribution disk 2
One ends of the splitting means 1 are alternately located below the dividing means 3.

The upper distribution disk 21 is rotatably supported by inserting an upright shaft 26 into a support bracket 25a inside a shaft cylinder 24 in the center, and a gear mechanism 28 is connected to a ring gear 27 fixed to the lower part of the disk 21. A gear 30 connected to the rotary motor 29 via the gear 30 is engaged with the rotary motor 29 .

On the other hand, as shown in FIGS. 1 and 5, the lower distribution disk 22 is provided with a downwardly tapered conical surface 22a at its lower portion.
is rotatably supported by a plurality of roller stands 31 arranged circumferentially at predetermined intervals on the support plate 25, and a ring gear 32 fixed to the lower part of the disk 22.
A gear 34 connected to a motor 33 is engaged with the motor 33. In the above structure, the upper and lower distribution disks 21 and 22 are rotated independently by the motors 29 and 33, respectively.

The lifting/swivel mechanism 20 provided at the lower part of the support plate 25 has a rotation shaft 3 whose upper end is fixed to the support plate 25.
A guide shaft 36 erected on the base 16 is movably inserted into the hole 34a of 5, and the roller 37 attached to the lower part of the pivot shaft 35 is brought into contact with the upper surface of the cam stand 38 provided on the base 16. A cylindrical gear 41 connected to a motor 40 capable of forward and reverse rotation is meshed with a ring gear 39 that supports the support plate 25 and the medicine dispensing means 2 and is attached to the pivot shaft 35.

In the mechanism with the above structure, when the motor 40 is driven, the pivot shaft 35 rotates, and the support base 25 is moved to the pivot shaft 35.
5 and the roller 37 moves on the upper surface 38a of the cam stand 38, so that the support stand 25 moves up and down along the inclination of the cam stand 38.

The upper surface of this cam stand 38 is a cam surface that is inclined in the vertical direction, and the direction of the inclination is such that when the tip of the upper distribution disk 21 is located below the chute 6, the roller 37 is placed at a high point on the upper surface of the cam stand 38. The roller 37 is located at a low position on the upper surface of the cam base 38 when the tip of the lower distribution disk 22 rotates below the chute 6.

As shown in FIG. 8, the dividing means 3 has a rotating shaft 44 on a table 42 driven by a motor 43.
and a shaft 46 for raising and lowering driven by a motor 45 are arranged in parallel, and a rotary disk 4 is attached to the tip of a raising and lowering arm 47 attached to the rotating shaft 44 so as to be able to freely raise and lower.
8 is rotatably attached, and the rotation of the rotating shaft 44 is transmitted to the disc 48 by an interlocking mechanism 49 built into the undulating arm 47.

A pawl cam 50 is fixed to the hoisting shaft 46, and a roller 51 is provided at the base of the hoisting arm 47, with which the pawl cam 50 comes into contact. It is designed to give 47 an ups and downs motion.

As shown in FIG. 7, the disc 48 is formed with a diameter that matches the concave surface of the distribution plate 23, and
The drug scraping plate 52 is attached to the front end surface of the disk 48, which is attached perpendicularly to the direction of rotation of the distribution plate 23. In the dividing means 3, the disc 48 moves up and down on the distribution plate 23, and at the lowering stop position, the disc 48 fits into the distribution plate 23 and rotates.

Further, a cleaner tool 5 for cleaning the surface of the distribution plate is provided on the rotating shaft 44 adjacent to the dividing means 3.
3 is installed. This cleaner tool 53 is
A pipe 55 communicating with an air suction device is connected to the rear end of the suction tube 54 whose interior becomes an air suction passage, and the bottom surface of the suction tube 54 is formed in an R shape along the shape of the distribution plate 23 at the tip. A suction chamber 56 is provided, and a suction port 53a is provided on the lower surface of the suction chamber 56.

Further, a roller 57 is provided at the rear end of the suction tube 54, and a claw cam 58 is attached to the up-and-down shaft 46, facing the roller 57.
When the pawl cam 58 is rotated by the drive of the motor 45, the suction tube 54 moves up and down about the rotating shaft 44 as a fulcrum like the dividing means 3 due to the collision between the pawl cam 58 and the roller 57.

Note that the contact position between the pawl cam 58 and the roller 57 is the contact position between the pawl cam 58 and the pawl cam 50 of the undulating arm 47.
The contact position and phase are shifted from the
The undulating arm 47 descends and the disc 48 of the dividing means 3
When the disc 48 contacts the distribution plate 23, the suction pipe 54 is in the process of descending, and after the disk 48 contacts the distribution plate 23, the suction pipe 54 moves to the distribution plate 2 after a predetermined interval.
It's getting closer to 3.

This embodiment has the structure described above, and when the dividing device is in the state shown in FIG.
The upper distribution disk 21 is rotated at a constant speed by the drive of
The drug is transported above the distribution plate 23 at a constant speed by the supply means 1 and is deposited uniformly over the entire distribution plate 23. Simultaneously with the above operation, the dividing means 3 drives the motor 33 to rotate the lower distribution disc 22 at a constant speed, and the motor 45 drives the up-and-down shaft 46 to rotate the disc 48. The cleaner tool 53 is lowered and brought into contact with the distribution plate 23.

In this case, due to the phase shift provided between the claw cams 50 and 58 as described above, the distribution plate 23 has a
After the disk 48 of the dividing means 3 makes contact, the suction port 53a of the cleaner tool 53 approaches after a predetermined interval. That is, first, the disk 48 fits into the distribution tray 23 and blocks the moving medicine, and the scraping plate 52 scrapes the medicine and sends it to the discharge chute 5.
9 and the dispensing plate 23 from which the drug is taken out.
The surface portion of the cleaner tool 53 moves backward, and then the cleaner tool 53
The suction port 53a approaches the distribution plate 23.

The cleaner tool 53 has a suction port 5 at the tip in the lowered position.
3a is fitted into the distribution tray 23, and the surface of the distribution tray 23 after the medicine has been scraped off by the dividing means 3 is suctioned to remove the remaining medicine.

A predetermined amount of drug is supplied to the distribution pan 23 of the upper distribution disk 21 or the distribution pan 23 of the lower distribution disk 22 is supplied with a predetermined amount of drug.
When all the medicine has been taken out, both distribution disks 21 and 22 are stopped, and the motor 45 is driven to rotate the lifting shaft 46 to separate the dividing means 3 and cleaner tool 53 as shown by the broken line in FIG. Rotate upward.

Next, the motor 40 is driven, and the roller 37 of the pivot shaft 35 collides with the cam base 38, causing the support base 2 to
5 is lowered and rotated, and the distribution plate 23 of the upper distribution disk 21 is moved to the dividing position of the dividing means 3, as shown in FIGS. 2 and 3. At the same time, the motor 18 of the lifting mechanism 11 is driven to lower the supply means 1 by a predetermined amount, and the distance between the chute 6 and the distribution plate 23 is adjusted so that it is always constant with respect to the upper and lower distribution disks 21 and 22. do. In this state, a work step is performed in which the drug is supplied onto the lower distribution disk 22 from the supplying means 1 and the drug deposited on the upper distribution disk 21 is divided by the dividing means 3. Then, repeat the above operations in sequence.

In this way, while one distribution disk is performing the drug supply and distribution process, the other distribution disk is performing the drug division process, which reduces the work time by almost half and improves the efficiency of the division process. improves.

Furthermore, when cleaning the distribution plate 23 after the drug has been scraped off, since the distribution plate 23 has a relatively flat shape, the drug attached to the surface can be reliably removed by air suction. Therefore, the drug can be accurately divided into volumes by the desired number of divisions. Further, the time required for cleaning is shorter than the conventional cleaning time for cleaning the V squares of the V square disk, and the down time of the apparatus can be greatly reduced, and the cycle time can be shortened.

In the above embodiment, two or more distribution disks may be provided one above the other.

Further, although the distribution plate in the embodiment is shown as having an R-shape, a flat horizontal divided disc may be used instead.

〔Effect of the invention〕

As explained above, the present invention provides a plurality of distribution disks each having a distribution plate formed of a flat or shallow circular groove on the upper surface, and each distribution disk performs drug supply/distribution operations and drug separation operations. Because they are carried out simultaneously, the amount of drug remaining in the distribution disk can be reduced compared to a V-mass disk with a conical surface, without reducing the work efficiency of volume division.
Enables accurate and efficient drug division work.

Furthermore, since the distribution disks are arranged one above the other, the installation space can be reduced, which has the advantage that the device can be made compact.

Furthermore, by raising and lowering the supplying means in accordance with the vertical movement of the drug dispensing means, it is possible to make the drug supply time the same in order to uniformly deposit the drug on the distribution pan of each distribution disk, resulting in stable and efficient drug delivery. supply can be carried out.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinally sectional front view of a capacity dividing device according to the present invention, FIG. 2 is a plan view of the same, and FIG.
The figure is a partially longitudinal front view of Fig. 2, and Fig. 4 is a perspective view showing the mounting positions of the upper and lower distribution disks and support plates.
Figure 5 is a diagram showing the support structure of the lower distribution disk, Figure 6
The figure is a sectional view showing the internal structure of the supply means, FIG. 7 is a perspective view of the dividing means and the cleaner tool, FIG. 8 is a sectional view showing the internal structure of the dividing means and the cleaner tool, and FIG. 9 is a conventional structure. It is a diagram. 1... Supply means, 2... Drug distribution means, 3...
Drug dividing means, 11... Lifting mechanism, 20... Lifting/swivel mechanism, 21... Upper distribution disk, 22...
Lower distribution disk, 23...distribution plate.

Claims (1)

[Claims] 1. A supply means for supplying a fixed amount of a drug, a drug distributing means for rotating at a constant speed to uniformly distribute and deposit the drug supplied from the supply means in an annular shape, and a drug distributing means for dividing the drug distributed by the dispensing means into fixed amounts. In a drug capacity dividing device comprising a drug dividing means for taking out a drug, the drug dispensing means has a distribution plate having a flat surface or a shallow arcuate annular groove continuous in the circumferential direction on the upper surface and is independently driven to rotate. It consists of a plurality of distribution disks, each of which is stacked vertically, and the rotation axis (described below) is aligned so that a portion of the distribution plate of the lower distribution disk is exposed from the upper distribution disk in the horizontal direction. The rotation axis of each distribution disk is shifted from the drug dispensing means, and each distribution disk is rotated horizontally about the rotation axis and raised and lowered to remove the exposed distribution pan of each distribution disk. A lifting/swivel mechanism is provided for positioning a part of the medicine dividing means in a dividing position, and the supplying means and the medicine dividing means are arranged so that one of the means faces the exposed part of the distribution pan of one distribution disk. The elevating mechanism is arranged such that the other means faces a portion of the exposed distribution pan of another dispensing disk when the drug is dispensed, and the elevating mechanism is provided in the feeding means to move the feeding means up and down in response to the elevating and lowering of the drug dispensing means. A drug capacity dividing device characterized by being provided with.