JP2000085701A - Powdered medicine feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a powdered medicine from being scattered from a dispenser tray without any limit in the depth of a rounded-groove of the dispenser tray or the dropping height from a powdered medicine feeder by providing a plurality of drop point guide paths in a through, and locating each path on the inside diameter side and the outside diameter side across a lowest end diameter position of a rounded annular recessed part. SOLUTION: Concerning drop ports of a trough 3, a tip part of the trough is arranged above both sides with two guide grooves 3a, 3b across a lowest point 5b of a rounded recessed part. The powdered medicine dropped from the guide groove 3a, is hit by an inclined surface of a rounded dispenser tray close to an inner circumferential side edge 5a, and bound in the direction of the lowest point 5b of the rounded recessed part, while the powdered medicine dropped from the guide groove 3b is hit by an inclined surface of the rounded dispenser tray close to an outer circumferential side edge 5c, and bound in the direction of the lowest point 5b of the rounded recessed part. In the trough 3, the guide grooves 3a, 3b are shallow, and the vibration of a feeder is strong, and when the supply is increased, more powdered medicine is dropped from the guide grooves 3a, 3b and the powdered medicine is prevented from being scattered even when it is dropped from the whole supply port of the trough 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder feeder used in a packaging apparatus for dispensing powdered medicines, packaging the powdered medicines one dose at a time, dispensing the powdered medicine with a scraping device, dividing the powdered medicine, and packing the powdered medicine. .

[0002]

[Prior art]

[0003] A conventional powder feeder is provided with a drop guide path in the trough so that a sensor for detecting a powder falling from the trough drop port is easy to detect, as in the technique of Japanese Utility Model Publication No. 6-26818. Is to be detected.

By the way, the feeder as described above is arranged such that the groove portion of the drop guideway coincides with the lowermost point of the R-shaped concave portion of the powder dispensing tray, so that the powder falling from the drop guideway can be removed. The powder dispensing plate is arranged so that it does not jump out of the powder dispensing plate by splashing at the R-shaped portion of the R shape.

Further, by providing the groove of the drop guide path as deep as possible, the drop height is reduced by approaching the R portion of the powder dispensing dish as much as possible to suppress the jump.

[Problems to be solved by the invention]

When the depth of the R-groove of the dispensing dish is increased or the powder dispensing dish is rotated at a high speed, the height of the powder falling from the powder feeder is restricted to a high level. This causes a problem of popping out of the distribution dish.

Further, the detection accuracy of a sensor for detecting the end of the powder falling from the feeder must be improved, and when the powder is put into the hopper, the powder of fine particles scatters in the air. Things must be prevented.

The present invention has been made to solve the above problems.

[Means for Solving the Problems]

According to the present invention, in order to solve the above-mentioned problem, an annular R-shaped recess is provided on the outer peripheral portion of the powder dispensing dish, and the powder is supplied to the R-shaped recess by rotating the dispensing dish. A vibrating feeder is provided to supply and deposit the powder in the R-shaped recess, and then the powder in the distribution dish deposited in the R-shaped recess is rotated by a predetermined angle, and the powder is distributed and supplied to the packaging device by a scraping device. Is a powder feeder provided with a vibration generating unit, connected to the vibration generating unit, and provided with a plurality of drop point guide paths provided in the trough.

[0010] Further, each of the drop point guideways provided in the trough is disposed so that each of the drop point guideways is located on the inner diameter side and the outer side with the annular R-shaped concave portion at the lowest end radial position therebetween. When the powder is supplied to the R-shaped recess by rotating the distribution dish, the powder that has fallen into the inclined portion on the inner diameter side and the outer side with the annular R-shaped recess at the lowermost end radial position is annular R-shaped. The powder feeder was arranged so as to rebound to the position of the lowermost diameter of the concave portion of the powder.

Furthermore, it is preferable that the trough is formed as a trough having at least two levels of horizontal surfaces in the course of transporting the trough, and the powder dropping port is made to approach the annular R-shaped concave portion. It has a sensor to detect the presence or absence of powdered medicine.

It is preferable that a charging hopper is provided above the trough, and a dust collecting device is provided above the charging hopper.

[0013]

Embodiments of the present invention will be described below.

FIG. 1 shows an example of a powder dividing and packaging apparatus according to the present invention.
Is activated, and at the same time, the powder is supplied to the R distribution dish from the tip of the trough 3 while the R distribution dish 5 is rotated at a speed of about 60 rotations per minute.

The vibrating feeder is constructed as shown in FIG. 2 and the feeder 1 is driven at a frequency of about 100 Hz by two piezoelectric elements 4 fixed below the trough 3 so that the feeder 1 is driven on the support plate 20 below the chute. The vibration sensor 21 is mounted in parallel with the vibration direction of the piezoelectric element 4, the lower part of the piezoelectric element 4 is fixed to a fixed base 22, and the fixed base absorbs the vibration of the feeder by a spring 23. Attached to.

FIG. 3 shows a hopper angle support device. A loading hopper 2 is supported above a trough 3 by a support member 24 of the hopper angle support device. The support member is configured to rotate up and down, and an arm member 2 for raising and lowering the support member
6 connects the support member 24 and a crankshaft rotated by a motor 27, and when the crankshaft is rotated by the motor 27, the opening angle of the input hopper can be changed.

The motor 27 employs a stepping motor, and can stop and hold the charging hopper at a position corresponding to a target opening angle. When the supply of the powder is completed, the powder attached to the surface of the charging hopper is removed from the motor 2.
7 is controlled at a fine angle (about 15 range) to vibrate the hopper, and the attached powder is dropped into the trough. Further, the powdered medicine adhered by hitting the charging hopper with the solenoid member may be dropped into the trough.

It is preferable that a dust collecting device 28 shown in FIGS. 4A and 4B is provided near the input port of the input hopper 2 of the feeder 1.

Since the dust collecting device 28 is formed of a cylindrical frame larger than the outer peripheral portion of the hopper inlet, and is rotatably supported by the support pipe 29, as shown in FIG. It is provided so as to be separated from the charging hopper.

A dust collecting port 30 is provided on the inner periphery of the cylindrical frame of the dust collecting apparatus 28, and chemical dust generated when the powdered medicine is put into the hopper is sucked from the dust collecting port 30 to the dust collecting apparatus. It has become so.

The path of this dust collector is as shown in FIG.
The cleaner device 40 includes a filter 41 and a fan 42, and is connected to a switching valve 43.

The powder dust sucked from the dust collecting port 30 of the dust collecting apparatus 28 is connected to the switching valve 43 through the support pipe 29 and is sucked from the dust collecting port 30 of the dust collecting apparatus 28 by the flow rate adjusting device 44 on the way. Adjust the flow rate.

In addition, a unit connected to the switching valve 43 is provided with a cleaner 45 with a rotating brush for cleaning the surface of the R distribution dish and a cleaner 46, but the description is omitted.

The R distribution dish 5 shown in FIG. 1 is formed by press working, and the inner peripheral side of the R-shaped concave portion is opened like a donut, and the R-curved angle has an angle of about 23.5 degrees. An inner peripheral side edge 5a is formed.

On the other hand, the outer peripheral edge 5c of the lowermost point 5b of the R-shaped recessed portion is set so that the angle at which the outer peripheral edge 5c rises is set to about 50 degrees. The warp height is set high, and the powder dispensed from the feeder 1 prevents the powder from being scattered by the centrifugal force of the R distribution dish even when the R distribution dish 5 is rotated at the above-described rotational speed. .

Outer edge 5c of lowermost point 5b of R-shaped depression
Further, a flange 5d for holding a support ring 6 for rotating the R distribution plate is formed integrally with the R distribution plate on the outer peripheral portion.

FIG. 6 is a view showing a fall from the feeder trough of the present invention to the R distribution dish.

The same components as those described above are denoted by the same reference numerals, and description thereof is omitted.

The end of the trough 3 is 2
The two guide grooves 3a3b are arranged above the positions on both sides of the center of the lowermost point 5b of the R-shaped recess.

The powder falling from the guide groove 3a hits the slope of the R distribution dish from the inner peripheral side edge 5a, and the powder splashes in the direction of the lowermost point 5b of the R-shaped concave portion. It hits the slope of the R distribution dish from the outer peripheral side edge 5c, and R
The powder splashes toward the lowermost point 5b of the concave portion of the shape.

In the trough 3 shown in FIG. 6, since the guide grooves 3a3b are shallow, the vibration of the feeder is strong, and when the supply amount increases, the powder falls from the entire supply port of the trough 3, and among them, the powder falling from the guide grooves 3a3b is Because of the large number, the above-described characteristics basically occur.

FIG. 7 is a view showing a second embodiment of the present invention. As shown in FIG. 7, two supply ports for the trough 3 are provided.

Assuming that the guide groove 3a3b and the supply port of the trough 3 have the same configuration at two places, the powdered medicine dropped from the guide groove 3a hits the slope of the R distribution dish from the inner peripheral side edge 5a, and the R-shaped depression is formed. The powder powder splashes in the direction of the lowermost point 5b, and falls from the guide groove 3b, hits the slope of the R distribution dish from the outer peripheral side edge 5c, and splashes toward the lowermost point 5b of the R-shaped recessed portion.

At this time, as shown in FIG. 6, since the vibration of the feeder is strong and the powdered medicine falling from the supply port of the trough 3 drops only from the guide grooves 3a3b even if the supply amount increases, A characteristic arises.

This is shown in FIG. 18 and FIG.
Conventionally, in a trough having only one guide groove, the drop point of the powder falling from the guide groove is located at the position of the lowest point 5b of the R-shaped concave portion of the R distribution dish. The powdered powder that has fallen from the inner peripheral side edge 5a across the lowermost point 5b of the R-shaped valley bounces more in the direction of the inner peripheral side edge 5a, and from the outer peripheral side edge 5c across the lowermost point 5b of the R-shaped valley. The powder that has fallen on the outer periphery bounces in the direction of the outer peripheral side edge 5c.

Also, the height of the bouncing at this time is the inner peripheral side edge 5.
Those that bounce beyond the height of a and the outer peripheral side edge 5c are accumulated in the distribution device without being deposited on the R distribution dish, and the height of the bounce does not exceed the height of the inner peripheral side edge 5a or the outer peripheral side edge 5c. The thing is R
It hits the R-shaped depression wall surface of the distribution dish and rebounds in the direction of the lowest point 5b of the R-shaped depression.

When comparing the configurations of FIGS. 18 and 19, depending on the supply amount of the feeder, the one in FIG. 18 rebounds due to the rebound of powdered medicines (to some extent across the lowest point 5b of the R-shaped depression). The powder falling from both sides of the guide groove bounces in the characteristic direction of Fig. 6 and Fig. 7)
Bouncing is canceled out, which is preferable.

[0038] Such a drop characteristic appears humblely in granular form powders, and is highly effective for powders easily dispersed by centrifugal force from R distribution dishes such as granules.

FIG. 8 is a diagram showing the arrangement of the feeders.

As shown in FIG. 9, the trough shown here has a tip portion lowered in two steps, and the tip portion of the trough 3 further has two guiding grooves 3a3b.

Each of the two guide grooves 3a3b has an R
The powdered medicine, which is arranged at the inner and outer circumferences with the lowermost point 5b of the concave portion of the shape interposed therebetween and drops from the tip of the trough 3, is guided by the guiding groove 3a.
The powders that have fallen much from 3b and fall into the R distribution dish 5 from the guiding grooves 3a3b respectively bounce in the direction of the lowermost point 5b of the R-shaped dent, and the splashed powders hit each other, and the lowermost point 5b of the R-shaped dent. Is deposited at the position.

For this reason, the powdered medicine rarely scatters from the R distribution plate 5, and since the trough has a two-step tip, the fall height is suppressed and the trough is hard to jump.
The cross-sectional shape of the powder is high at the top of the line of the lowermost point 5b of the R-shaped concave portion, and it is difficult for the powder to accumulate.

In order to rotate the R distribution dish at a high speed as in the present invention, the trough drop opening of the feeder and the R distribution dish are made as close as possible, or the inclination of each of the inner and outer diameters sandwiching the lower point of the R distribution dish. It is indispensable to devise a method of dropping powder on the surface so as not to jump from the rotating R distribution dish.

The powder dispensed in this manner is fed into the R distribution tray 5 at a predetermined angle by the scraping device 7, and the powder in the range sent in one time is scraped into the packaging hopper 8 by the scraping device. Dropping, the shutter of the packaging hopper 8 is released, and the powdered medicine is put into the wrapping paper 10, and the wrapping paper 10 is sequentially drawn in by the rotation of the sealing device 11, and is wrapped.

The scraping device 7 is retracted upward during the dispensing, and when the dispensing is completed, the scraping device 7 descends and comes into contact with the R distribution plate. The powder is scraped off in the inner diameter direction of the R distribution dish.

When the distributing and dividing operations are completed, the rotary brush-equipped cleaner 45 shown in FIG. 5 is operated to clean the surface of the R-shaped concave portion of the R distribution dish 5 and waits for the next prescription.

The operation of the scraping device 7 is performed as follows.

As shown in FIG. 10A, the scraping device 7
After the powder deposited on the R distribution plate 5 is cut out by the disk 12 and the range sent by rotating the R distribution plate 5 is scraped to the disk 12, the guide plate 13 is rotated by the rotation of the scraping device 7. The powder deposited on the distribution plate 5 is scraped off from the R distribution plate 5 by a scraping plate 14 provided between the disk 12 and the guide plate 13, and these are driven by a motor 15.

As shown in FIGS. 10B and 10C, the tip of the scraping plate 14 moves on the inner surface of the R as the scraping device 7 rotates while contacting the inner surface of the R distribution dish 5. When the tip of the scraping plate 14 is cut into the tip as shown in (c), when the scraping plate 14 is separated from the R distribution dish 5, the repulsion of the rubber material of the scraping plate is suppressed, and the granular powder splashes. It becomes difficult.

FIGS. 11A and 11B are side views of the scraping device.

The rotation of the disk of the scraping device does not rotate at a constant speed, but at a predetermined speed within a predetermined range.

As shown in FIG. 11 (b), the operation during scraping is divided into the following ranges,
Is stopped at the position of the inner peripheral side edge 5a or reduced to the minimum speed.

After passing through the position of the inner peripheral side edge 5a of the R distribution plate 5, the rotation speed is accelerated for a while, and the rotation axis x is rotated at a substantially constant speed from a certain position.
The range of the inner peripheral edge 5c of the distribution plate 5 is set as a speed adjustment section.

In this speed adjustment section, the rotation is not based on the fact that the scraping plate 14 has reached the inner peripheral edge 5c of the R distribution plate 5, but it is determined whether the tip of the guide plate 13 has reached. At this point, for example, when the split feed angle of the R distribution tray 5 is small, the split feed angle reaches the next stop point earlier than the tip of the guide plate 13 reaches the position of the R distribution tray 5c.

For this reason, it is not necessary to decelerate in the rotation axis x speed adjustment section. However, when the set number of packages is reduced, the divided feed angle of the R distribution plate 5 is correspondingly increased. When rotating at a constant speed in the speed adjustment section, the leading end of the guide plate 13 reaches the position of the R distribution plate 5c earlier than the divided feed angle reaches the next stop point, and the rotation axis x is rotated as it is. While the guide plate 13 is in contact with the powder that accumulates, the R distribution tray 5 is still fed, and the powder distribution area deposited on the R distribution tray 5 required for division can be taken in between the disc 12 and the guide plate 13. Error occurs.

For this reason, time data corresponding to the number of packages and the increase / decrease of the feed angle of the R distribution plate 5 is stored, and the time required for the leading end of the guide plate 13 to reach the position of the R distribution plate 5c is stored. If it is predicted that the rotation time is earlier than the predetermined time, the rotation speed of the rotation axis x is controlled to be reduced and rotated in the speed adjustment section.

As shown in FIG. 1, above the R distribution plate 5, there is provided a tablet dividing machine 16 for manually distributing tablets and dividing and packaging the tablets, and a tablet chute 18 having a shutter 17 for dropping into the packaging hopper 8. Are provided corresponding to the width of the splitter.

The tablet dividing machine 16 is a container arranged in the shape of a small mesh, and a bottom plate shutter (not shown) is provided on the bottom surface of each mesh.

Since the bottom plate shutter moves while contacting the bottom in the moving direction of the tablet dividing machine 16, when the opening of the chute 18 is reached, the bottom plate shutter of the tablet dividing machine 16 is naturally released, and the inside of the container is opened. The tablets are dropped on the chute 18. The opening of this chute 18 is provided with a step-like slit at a pitch obtained by dividing one cell in the transport direction of the tablet dividing machine 16 by the number of cells provided in the width direction with respect to the moving direction of the tablet dividing machine 16. Tablet dividing machine 16
Is transferred at a pitch obtained by dividing one cell in the transfer direction of the tablet dividing machine 16 by the number of cells provided in the width direction, so that the bottom plate shutter of the tablet dividing machine 16 is sequentially opened in the width direction from the front corner. I do.

The shutter 1 provided at the exit of the chute 18
Reference numeral 7 operates at a timing associated with these series of operations.

FIG. 17 is a view showing a conventional scraping mechanism, the driving of the R distribution tray, and the arrangement of the packaging hopper and the like. The rotating shaft of the lifting arm 17 for raising and lowering the disk 12 of the scraping device and the packaging hopper 8 are the R distribution tray. 5 outside,
The rotation drive of the R distribution dish 5 is driven by an R distribution dish drive motor 16. The feeder 1 is arranged outside the R distribution dish 5, and when the powdered medicine is put into the input hopper 2, the R of the R distribution dish 5 is passed through the trough 3. Supplied to the part.

In the case of the apparatus shown in FIG. 12 for scraping and packing the powder in the center direction of the R distribution plate 5, as shown in FIG. A support ring 6 is provided on an outer peripheral portion of the distribution dish 5, and the support ring 6 is rotatably supported by a bearing 17.

The support of the R distribution dish 5 plays an important role in such a device, and if there is a problem with the rotating support means, the powder generated during the distribution may be disturbed by the vibration generated while the R distribution dish is rotating. The concentric circle of the lowermost point 5b of the R-shaped concave portion is deviated meandering or eccentrically and is distributed, or the powder concentrates on a part of the circumference, which directly affects the division accuracy.

As a technique for solving the technique related to the rotation support, the problem can be easily solved by supporting the rotation center axis of the R distribution dish. However, as in the present invention, the powdered medicine is applied in the direction of the rotation center axis of the R distribution dish. In this case, the rotation of the R distribution dish is restricted at least outside the inner peripheral edge 5a of the R distribution dish, and the rotation of the R distribution dish outside the inner peripheral edge 5a of the R distribution dish is restricted. When the support is performed, it is difficult to adjust the concentricity of the rotating shaft of the R distribution dish at the time of assembling because of the relationship between the lowermost point 5b of the R-shaped recessed portion and the rotation support means. The farther away from the rotation axis in the outer peripheral direction, the more difficult it is to adjust the concentricity of the rotation axis of the R distribution dish during assembly.

Conventionally, when the R distribution dish is rotated at 30 rotations per minute, it is possible to support the rotation support portion of the R distribution dish by moving the rotation support portion to some extent in the outer circumferential direction from the rotation shaft. In the case of the present invention in which the rotation is performed at 60 rotations per minute, the precision and shape of pressing the R distribution plate must be strictly determined. Yes, and if the arrangement of the bearing 17 is not devised, the scattered powder will bite between the support ring 6 and the bearing 17,
It includes conditions that generate noise that could not be considered conventionally. (Conventionally, the support of the R distribution plate has a problem that the rotation speed is low inside the drop position of the powder distribution plate, and the powder that scatters without being concerned about the arrangement of the bearings gets stuck between the support ring and the bearings. Does not occur.)

From these facts, the problem of biting between the support ring 6 and the bearing 17 is that the powder disperses during distribution because the powder is concentrically located at the lowest point 5b of the R-shaped depression during distribution. Distributed meandering or eccentrically, or
Since the problem that the powder concentrates on a part of the circumference occurs, in the present invention, the contact portion between the support ring 6 and the bearing 17 is formed by the flange 5d of the R distribution plate 5 as shown in FIG. Below the position, and in the radial direction substantially inward of the outer diameter of the flange 5d, at a position outside the inner peripheral side edge 5a, so that when the powdered medicine being distributed is scattered, the support ring 6 and the bearing 1
7 does not bite into the contact portion.

The contact portion of the support ring 6 with the bearing 17 is positioned below the position of the flange 5d of the R distribution plate 5 so that the flange 5d
In a case where the position is substantially in the radial direction of the outer diameter of the
When provided inside the parabolic range of powdered powder under conditions such as centrifugal force and the like, powdered drug may very rarely bite into the contact portion between the support ring 6 and the bearing 17, but this does not cause a serious problem. Even in such a case, the support ring 6
A continuous vibration can be generated by removing the powder adhered to the support ring 6 by sandwiching the contact portion of the support ring 17 with a brush or the like as shown in FIG.

However, when the contact portion of the support ring 6 with the bearing 17 is located at the same or higher position than the position of the flange 5d of the R distribution plate 5 and substantially in the radial direction of the outer diameter of the flange 5d, In the case where the powder is provided outside the range of the paraboloid of flying powder under conditions such as centrifugal force from the plate 5, the powder often gets stuck in the contact portion between the support ring 6 and the bearing 17. The contact portion between the support ring 6 and the bearing 17 is, for example, a brush member 3 as shown in FIG.
Even if the powder adhered to the support ring 6 is removed by being sandwiched by the support ring 6 or the like, the powder that cannot be removed in a short time is accumulated, and the continuous vibration is generated, which is not preferable.

FIGS. 13 (a), 13 (b) and 13 (c) are views showing a supporting form of the support ring 6 and the bearing 17. FIG.

13A, the support ring 6 and the bearing 17 are supported in such a manner that the inner diameter side of the support ring 6 is pressed downward in the outer peripheral direction, and the support ring 6 is mounted on the bearing 17. The support ring 6 and the bearing 17 are supported on the rear surface side of the R distribution plate 5.

The supporting form of the support ring 6 and the bearing 17 shown in FIG. 13B is such that the outer diameter side of the support ring 6 is pressed downward in the inner circumferential direction, and the support ring 6 is placed on the bearing 17. The support ring guide 6a extends upward from the outer side of the flange 5d provided on the outer peripheral portion of the R distribution plate 5 from the support ring.

For this reason, the powdered medicine scattered from the surface of the R distribution dish 5 is less likely to scatter to the outer peripheral side of the R distribution dish 5 by the support ring guide 6a, and the support ring 6 and the bearing 17 are accidentally formed. Powder powder is rarely interposed between them.

Here, the shape of the support ring guide 6a is a support ring extending upward, but the shape of the support ring guide 6a may be a support ring guide 6a extending in the outer peripheral direction so as to cover the bearing 17 above. ,
Instead of the support ring guide 6a, a flange 5d provided on the outer peripheral portion of the R distribution plate 5 may cover the bearing 17 above.

The supporting form of the support ring 6 and the bearing 17 shown in FIG. 13C is such that the bearing 17 presses the outer diameter side of the support ring 6 downward in the inner circumferential direction, and the support ring 6 is placed on the bearing 17. The gap is provided between the flange 5d and the support ring 6 on the back surface of the flange 5d provided on the outer peripheral portion of the R distribution plate 5, and the gap is used as a starting point. The cover 17 is provided so as to cover the bearing 17 and covers the periphery of the bearing 17 where the bearing 17 does not contact the support ring 6.

Since the bearing 17 is covered by the cover member 18, it is unlikely that the powdered medicine is accidentally caught between the support ring 6 and the bearing 17.

The contact surface of the bearing may be made of a material such as resin, and a soft material capable of absorbing vibration may be fixed to the support ring. Conversely, the surface material of the bearing 17 may be made of resin or rubber. By using R
It is possible to cope with an increase in the speed of the distribution dish 5.

Further, if the bearing 17 has a diameter as large as possible, the rotational speed of the bearing decreases, and durability, noise and vibration can be suppressed.

It should be noted that FIG.
(B) and (c) are the means shown in the embodiment, and the powder support such as granules and the like which are scattered by the centrifugal force of the R distribution tray at the contact portion between the rotation support ring of the powder distribution tray and the roller contacting the rotation support ring. The term “disposed at a position where the device does not bite” includes any means such as covering with a cover.

FIG. 14 shows a different form of mounting of the R distribution dish 5.

Here, the flange 5d of the R distribution plate 5 to be raised has no screw hole for fastening to the support ring 6,
The flange 5d of the R distribution plate 5 is bent annularly below the horizontal line.

By bending the flange 5d downward as described above, the bending strength of the R distribution plate 5 is improved as the bending angle becomes steeper from the horizontal direction to the vertical direction. Difficulties arise.

However, as shown in FIG.
The problem is solved by bringing d into contact and tightening the tightening screw 19 with a countersunk screw or a fastener having a slope of the support ring and the flange 5d with the tightening screw 19.

FIG. 15 is a control block diagram of a packaging apparatus in which the present invention is used.

The reference numerals in each unit are the same as those described above, and the detailed description is omitted here.

The packaging device is provided with input means 3 such as a keyboard.
2, the number of divisions, operating conditions, and the like are input. The number of divisions is set based on the number of daily doses and the prescribed number of days after charging the powdered medicine based on the prescription information into the input hopper 2, and then setting the number. The operating conditions mainly mean that the supply amount of the feeder is adjusted each time the type of medicine changes, and that the setting of the packaging form and the like is performed.

The information input here is transmitted to the computer 3
3 and transmitted to the corresponding sequencer for each piece of information, and the computer 33 includes the concept between the microcomputer and the personal computer.

At the start of the packaging start, the powder supplied to the charging hopper 2 is supplied to the R distribution plate 5 at the same time as the powder is supplied from the trough 3 to the R distribution plate 5 by the operation of the piezoelectric element 4 under the conditions set by the input means 32. 5. The motor 16 is rotated at a speed of 60 rotations per minute.

At the tip of the trough 3, a sensor 31 for monitoring the supply of the powder is provided.
Judgment is made without detection, cleaning of the powder adhering in the input hopper 2 in the next step, and full operation of the piezoelectric element 4 to supply the remaining medicine in the trough.

After the operation is completed, the rotation of the R distribution plate 5 is stopped, and the disk 12 of the scraping device 7 is lowered onto the R distribution plate 5.

The R distribution dish 5 is fed by the angle of the division range,
Subsequently, the drive of the scraping device 7 rotates the motor 15,
When the scraping plate 14 of the scraping device 7 is detached from the inner peripheral edge 5a, the R distribution plate 5 is fed by the angle of the next divided range, and the operation is repeated by the set number of packages.

In correspondence with this dividing operation, the heater roller 1
1a and 11b are operated, 11a seals the bag so as to divide the bag at regular intervals in the width direction, and 11b seals the bag in a cylindrical shape in the longitudinal direction.

The powdered medicine is packaged through a packaging hopper 8 provided at a position where the packaging paper is folded and spread, and a required patient name and a required time are printed by a printing device 34 on the surface of the packaging paper. You.

Further, it is also possible to operate by receiving necessary information from the host computer 35.

FIG. 16 is a block diagram for controlling the feeder shown in FIG.

The communication interface 53 shown in FIG. 16 is connected to the computer 33 shown in the block diagram of FIG. 15, and the operation data input through this interface 53 is read into the memory circuit of the microcomputer 53 and The stored data is sequentially read out according to the elapsed time from the start of the supply of the powdered medicine, and based on the read out data, a drive signal to the piezoelectric element 4 and a drive pulse to the motor 27 of the hopper angle adjusting mechanism are output.

The A / D converter 50 is connected to the vibration sensor 21, and when the sensor output is input, converts the analog signal into a digital signal, and
Output to

At this time, the microcomputer 51 compares the detection output from the vibration sensor 21 with the operation data, and corrects the drive signal so that the detection output matches the operation data.

The drive signal to the piezoelectric element 4 is D
After being input to the / A converter 52 and converted into an analog signal, it is output to the piezoelectric element 4 by the drive circuit 44.
On the other hand, the drive pulse to the motor 27 for controlling the hopper opening angle of the hopper angle support device is converted into a serial pulse for driving the pulse motor by the pulse motor drive circuit 54 and output, so that the vibration output and the hopper angle can be adjusted. ing.

[0099]

As described above, according to the present invention, a plurality of fall point guideways provided on the trough are provided, and each of the fall point guideways provided on the trough is sandwiched between the lowermost diameter positions of the annular R-shaped concave portions. When the powder is supplied to the R-shaped depression by rotating the dispensing dish by arranging the drop point guideways on the side and the outer side, the lowermost diameter position of the annular R-shaped depression The powder feeder is arranged so that the powder falling on the inclined part on the inner diameter side and outer diameter side is repelled to the position of the lowermost diameter of the annular R-shaped recessed part, so that the depth of the R groove of the distribution dish can be reduced. If the powder dispensing tray is rotated at high speed or the powder dispenser is rotated at a high speed, the height of the powder dropping from the powder feeder is limited or the powder dropped from the feeder caused by the high speed rotation jumps out of the dispensing tray. Can be solved.

Further, the trough is formed as a trough having at least two horizontal planes in the process of transporting the trough, and the powder drop outlet is brought closer to the annular R-shaped recess to enhance the effect.

Further, by providing a charging hopper above the trough and providing a dust collecting device above the charging hopper, it is possible to prevent the powdered fine particles from scattering into the air.

[Brief description of the drawings]

FIG. 1 is a perspective view of a divided packaging apparatus according to the present invention.

FIG. 2 is a side view of a feeder used in the present invention.

FIG. 3 is a side view of an opening / closing device of a charging hopper used in the present invention.

FIG. 4 is a front view and a side view of the charging hopper dust collecting apparatus of the present invention.

FIG. 5 is a path diagram of the dust collecting apparatus of the present invention.

FIG. 6 is a view showing a powdered medicine falling from a trough according to the present invention.

FIG. 7 is a view showing a second embodiment of the powdered medicine falling from the trough according to the present invention.

FIG. 8 is a diagram showing an arrangement of feeders used in the present invention.

FIG. 9 is a diagram showing a method of dropping powdered medicine falling from a trough according to the present invention.

FIG. 10 is a diagram showing a scraping device used in the present invention.

FIG. 11 is a view showing a scraping device used in the present invention.

FIG. 12 is a side view of a divided packaging apparatus according to the present invention.

FIG. 13 is a supporting sectional view of an R distribution dish according to the present invention.

FIG. 14 is a cross-sectional view showing the support means of the R distribution dish of the present invention.

FIG. 15 is a block diagram of a divided packaging apparatus according to the present invention.

FIG. 16 is a block diagram of a feeder unit according to the present invention.

FIG. 17 is a side view of a divided packaging apparatus showing a conventional example.

FIG. 18 is a view showing a state of powdered medicine falling from a trough showing a conventional example.

FIG. 19 is a view showing a state of powdered medicine falling from a trough showing a conventional example.

[Description of sign]

 3. Trough 3a. Guide groove 3b. Guiding groove 5. R distribution dish 5a. Inner peripheral edge 5b. Lowermost point of R-shaped depression 5c. Outer edge 5d. Tsuba 6. Support ring 6a. Support ring guide 17. bearing

Claims (5)

[Claims] 1. An R-shaped concave portion is provided in an outer peripheral portion of a powder dispensing plate, and a vibration feeder for supplying a powder to the R-shaped concave portion by rotating the dispensing plate is arranged. In the powder feeder for supplying and depositing the powder in the depression and then rotating the powder in the distribution dish deposited in the R-shaped depression by a predetermined angle and distributing and supplying the powder to the packaging device by a scraping device, a vibration generating unit is provided. A powder feeder comprising: a trough connected to the vibration generating unit; and a plurality of fall point guideways provided in the trough. 2. Each of the falling point guideways provided in the trough is arranged such that each of the dropping point guideways is located on the inner diameter side and the outer shape side with the annular R-shaped concave portion at the lowest end radial position therebetween. When the powder is supplied to the R-shaped depression by rotating the distribution dish, the powder that has fallen on the inclined portion on the inner diameter side and the outer side with the annular R-shaped depression at the lowermost end radial position is circular R-shaped. The powder feeder according to claim 1, wherein the powder is supplied so as to rebound to a position of the lowermost end diameter of the depression. 3. The trough is formed as a trough having at least two levels of horizontal surfaces in the process of transporting the trough, and a powder dropper is made to approach the annular R-shaped recess. Item 3. A powder feeder according to Item 2. 4. The powder feeder according to claim 1, further comprising a sensor for detecting the presence or absence of the powder falling from the powder drop opening of the trough. 5. A charging hopper is provided above the trough,
The powdered feeder according to claim 1, further comprising a dust collection device above the charging hopper.