JP2022025460A - Medicine individually packaging apparatus - Google Patents

Abstract

To provide a medicine individually packaging apparatus for preventing adhesive residue of medicine to an outer peripheral wheel (an arc recessed surface) of a distribution disc.SOLUTION: A medicine individually packaging apparatus 1 has: a distribution disc 17 where a continuous circular-arc recessed surface 16 continuing an upper surface in an outer peripheral direction is formed; a medicine container 21 supplying the circular-arc recessed surface of the distribution disc with medicine little by little; a rotation driving part which mounts the distribution disc and rotates and drives the distribution disc; a weighing part 7 which is placed on a weighing part placement table 4 provided below the rotation driving part and measures the weight of the supplied medicine for the distribution disc from the medicine container by measuring a total weight of the distribution disc and the rotation driving part; and a rotary plate 23 which is in contact with the circular-arc recessed surface of the distribution disc and rotates. The rotary plate rotates, so that medicine raked by a medicine raking apparatus 24 that discharges medicine every package from the circular-arc recessed surface is packaged.SELECTED DRAWING: Figure 2

Description

The present invention relates to a drug packaging device that packages a drug such as powdered drug into individual packages for each dose or for each predetermined drug amount according to a prescription.

The disk division method as in Patent Document 1 has long been used in a drug packaging device that packages a drug composed of powder such as fine powder or granules into individual packages for each dose or for each predetermined drug amount. In this disk division method, the mass of one prescription (for example, 1 g for 1 packet, 3 times a day x 14 days = 42 packets = 42 g) is manually weighed with an electronic balance. Then, the weighed drug is continuously dropped in small amounts on the outer peripheral side of the rotating distribution disk by means such as vibration transport to form a donut-shaped laminated body of the drug on the outer peripheral side of the disk. After that is completed, a method is adopted in which the donut-shaped drug is divided into one package (for example, 42 equal parts) and sealed in the wrapping paper in a wrapping machine.

In this disc-splitting packaging machine, the work of manually weighing the mass of the drug with an electronic balance is performed by a pharmacist, but it is a nerve-wracking work and takes time. It is required to automate this weighing operation, and as one method thereof, an automatic weighing type powder packing machine as described in Patent Document 2 has been put into practical use. In this example, once the drug is placed in a container and weighed in the device, the weighed container is moved to the distribution disk portion, and the drug is dropped from this container onto the distribution disk. Since this method requires an indirect container, a more efficient method that does not require an indirect container has been sought.

On the other hand, a technique of measuring the actual amount of the drug on the disk by providing an electronic balance capable of weighing the mass of the distribution disk itself, dropping the drug on the disk, and measuring the mass increment is considered. ing. With this technology, the total mass of the distribution disk, etc. can actually be known, so the mass of the drug alone can be measured by subtracting the mass of the tare before dropping the drug, such as the distribution disk, from the total mass. .. According to this technology, even if the drug existing in the container is accurately measured as in Patent Document 2, when the drug is dropped and discharged from the container to the distribution disk, the drug may be scattered in the air or the drug may be in the container. Accurate drug weighing can be achieved without the risk of residual adhesion and weight loss.

7 and 8 schematically show the peripheral structure of the disk portion, which is the main part of the disk weighing type drug packing machine that weighs the mass of the distribution disk and the like. 7 is a plan view thereof, and FIGS. 8A and 8B are front views thereof.
The electronic scale 103 is mounted on the scale support 102 provided in the housing 101, and the disk support 105 is mounted on the load point 104 above the electronic scale 103. A vertical drive shaft 106 is rotatably held above the load point 104 of the disk support 105 by a holding portion 107 having a built-in bearing. A gear 108 is attached to the drive shaft 106, and the drive shaft 106 can be rotationally driven by a stepping motor 110 via the gear 109. At the uppermost portion of the drive shaft 106, a distribution disk 113 having an outer peripheral ring 112 (arc-shaped concave surface) having a downwardly convex curved surface 111 is attached concentrically with the drive shaft 106.

An upper base 114 is suspended from the upper part of the distribution disk 113 by a method (not shown) inside the outer peripheral ring 112 so that the load of the upper base 114 is not transmitted to the load point 104 of the electronic scale 103. It is insulated. On the upper surface of the upper table 114, a shaking table 115 and a drug container 116 that is placed on the shaking table 115 and can discharge and drop the drug contained therein by vibration are mounted. By discharging and dropping the drug from the drug container 116 in a state where the distribution disk 113 is rotated, a donut-shaped laminated body Pa of the drug can be formed on the outer peripheral ring 112 of the distribution disk 113.

Similarly, on the upper table 114, a drug scraping device 118 having a disk portion 117 having a diameter substantially equal to the curvature of the downward convex curved surface 111 of the outer peripheral circular ring 112 is mounted on the tip portion thereof. When the disk portion 117 is brought into contact with the downward convex curved surface 111 and the disk portion 117 is rotated while rotating the stepping motor 110 at an angle corresponding to the number of indexing indicated in the prescription, the scraping attached to the disk portion 117 is scraped out. The member 119 releases one packet of the drug to the hopper 120. The released drug is contained in a continuous wrapping paper mounted on a known wrapping machine from the lower part of the hopper 120, and the paper is further sealed to complete a continuous individual wrapping.

However, as shown in FIG. 8B, the force point 121 on the distribution disk 113 of the disk portion 117 of the drug scraping device 118 is largely offset from the load point 104 of the electronic scale 103. That is, the load point 104 is located at the center of the distribution disk 113, while the force point 121 is located at the outer peripheral position of the distribution disk 113. Then, the disk portion 117 presses the outer peripheral portion of the distribution disk 113 downward. As a result, a downward couple is generated only on one end side of the disk support base 105 to which the distribution disk 113 is fixed. As a result, although the amount of deformation is enlarged and shown in FIG. 8B, the downward convex curved surface 111 of the distribution disk 113 actually sinks slightly.

As a result, the contact surface between the disk portion 117 and the downward convex curved surface 111 is displaced. This is because the contact pressure between the disk portion 117 and the downward convex curved surface 111 changes depending on the location, and when the disk portion 117 is rotated in this state to scrape out the drug, the drug Pb is applied to the surface of the outer peripheral ring 112. The so-called unscraped phenomenon may occur. This is because the leftover drug does not fit in the individual package, so not only is there a shortage of the drug by its mass, but it is necessary to do another work that the leftover drug must be cleaned. Come out.

Such a problem does not occur in the conventional disc division method, but is a problem peculiar to the disc weighing method, and it is desired to solve this problem.

Japanese Unexamined Patent Publication No. 2019-20201 Japanese Unexamined Patent Publication No. 2020-5692

An object to be solved by the present invention is to prevent the drug from remaining on the outer peripheral ring (arc-shaped concave surface) of the distribution disk in the disk weighing type drug packaging device.

In order to solve the above problems, the drug packaging device of the present invention comprises a distribution disk in which a continuous arcuate concave surface is formed on the upper surface in the outer peripheral direction, and a small amount of the drug on the arcuate concave surface of the distribution disk. The drug container to be dropped and supplied, the distribution disk, and the rotation drive unit for rotationally driving the distribution disk, and the weighing unit mounting table provided below the rotation drive unit are placed on the distribution disk. By measuring the total weight of the disk and the rotation drive unit, the weighing unit for measuring the weight of the drug supplied from the drug container to the distribution disk and the arc-shaped concave surface of the distribution disk are contacted and rotated. A drug scraping device having a rotating plate and discharging the drug one packet at a time from the arcuate concave surface by rotating the rotating plate, and the distribution to the weighing unit mounting table at least when the drug is discharged by the drug scraping device. It has a movement restricting means for restricting the movement of the disk, and a packaging device for packaging the drug scraped by the drug scraping device.

As described above, according to the present invention, since the movement regulating means for restricting the movement of the distribution disk is provided, the disk portion is distorted and moved by the force when the scraping device scrapes out, and as a result, the drug is left unscraped. It is possible to provide a drug packaging device without fear.

The plan view of the disk weighing type medicine packing machine which concerns on 1st Embodiment. The front view of the disk weighing type medicine packing machine which concerns on 1st Embodiment. The front view and the side view of the disk part of the scraping device of the disk weighing type medicine packing machine which concerns on 1st Embodiment. The front view of the fixing device of the disk weighing type medicine packing machine which concerns on 1st Embodiment. The front view of the modification of the fixing device of the disk weighing type medicine packing machine which concerns on 1st Embodiment. The front view of the disk weighing type medicine packing machine which concerns on 2nd Embodiment. It is a top view of the disk weighing device. It is a front view of the disk weighing device.

Hereinafter, the disk weighing type drug packaging machine according to the embodiment will be described with reference to the drawings. The drug applied in this embodiment is intended for all drugs whose prescription amount is expressed in mass units, including powdered drug from powder to granules, and FIG. 1 shows a disk weighing type drug packaging machine according to this embodiment. FIG. 2 is a front view of the disk weighing type drug packing machine according to the present embodiment, and FIG. 3 is a front view and a side view of a disk portion of the scraping device of the disk weighing type drug packing machine according to the present embodiment. FIG. 4 is a front view of the fixing device of the disk weighing type drug packaging machine according to the present embodiment.

In the disk weighing type drug packaging machine 1 according to the present embodiment, a packaging machine 3 is provided at the lower part of the housing 2, and two disk distribution devices 5a and 5b are provided on an intermediate table 4 (weighing unit mounting table). They are arranged side by side. Further, it is provided with a hopper 6 for dropping and introducing the distributed medicine from the disk distribution devices 5a and 5b into the packaging machine 3. The medicine dropped from the drop hopper 6 is stored between the packing papers B folded in half on the lower side.
For example, by a known disk distribution technique as shown in Patent Document 1, the drug charged on the disk can be packaged in a specified number of individual packages.

The two disk distribution devices 5a and 5b have almost symmetrical structures, and the same members / devices are used, and the numbers are not distinguished from a and b, but the same members / devices. The device is used for both the disk distribution devices 5a and 5b. All of the disk distribution devices 5a and 5b can execute the basic operations of this device, "circumferential sowing" and "distribution", and when one is executing "circumferential sowing", the other is Perform "allocation". Work efficiency is improved by executing them alternately in this way. In addition, in this embodiment, two disk distribution devices 5a and 5b are not indispensable, and only one disk distribution device 5a can perform the same function functionally, and the device is downsized.・ Because the price is reduced, it has great utility in small pharmacies.

An electronic scale 7 constituting a weighing unit is mounted on an intermediate table 4 provided in the housing 2, and a disk support table 9 (base portion) is mounted on a load point 8 on the upper portion of the electronic scale 7. A vertical drive shaft 10 is rotatably held above the load point 8 of the disk support 9 by a holding portion 11 having a built-in bearing. A gear 12 is attached to the drive shaft 10, and the drive shaft 10 can be rotationally driven by the M1 stepping motor 14 via the gear 13. Further, at the uppermost portion of the drive shaft 10, a distribution disk 17 having an outer peripheral ring 16 (arc-shaped concave surface) having a downwardly convex curved surface 15 is attached concentrically with the drive shaft 10. That is, the distribution disk 17 is formed with a continuous arcuate concave surface on the upper surface in the outer peripheral direction.

The electronic scale referred to here does not show the mechanical spring deformation amount as a mass value as it is, but acquires the mass value by changing the circuit resistance value by using a resistance line strain gauge to obtain a minute deformation amount. Similarly, there is also one in which the amount of deformation is compensated by an electromagnetic force and the mass value is obtained from the change in the electromagnetic force. As described above, in recent years, the measurement resolution for a large mass has been greatly improved, so that even if a drug of several tens of mg falls on a disk distribution device weighing about several kg including an M1 stepping motor, it can be detected. Therefore, the disk weighing method was realized.

Further, the drive of the distribution disk is not limited to the gear drive, and may be a timing belt drive.

On the upper part of the distribution disk 17, an upper base 18 is attached to the inside of the outer peripheral ring 16 by being suspended from the upper part by a hanging member 19 from the upper part of the housing 2. Therefore, the load of the upper base 18 is load-insulated so as not to be transmitted to the load point 8 of the electronic scale 7. Further, on the upper surface of the upper table 18, a vibrating table 20 and a drug container 21 that is removably placed on the vibrating table 20 are provided. When the shaking table 20 vibrates with the drug container 21 containing the drug placed on the shaking table 20, the drug contained in the drug container 21 is discharged and dropped little by little. When the drug is discharged from the drug container 21 while the distribution disk 17 is rotated by the M1 stepping motor 14, a donut-shaped laminate P of the drug can be formed on the outer peripheral ring 16 of the distribution disk 17.

Each of the drug containers 21 contains individual drugs and is stored on a shelf or the like (not shown). When a drug is designated by the prescription, the drug container 21 containing the drug is manually mounted on the shaking table 20 as shown by the arrow 22. It is possible to realize higher work efficiency by automating the attachment / detachment and transfer of the drug container 21 by using a robot transfer device for this portion, for example, as described in Patent Document 2.

Similarly, on the upper table 18, a drug scraping device 24 having a disk portion 23 having a curvature substantially equal to the curvature of the downward convex curved surface 15 of the outer peripheral ring 16 is mounted on the tip portion thereof. When the disk portion 23 was brought into contact with the downward convex curved surface 15 and the disk portion 23 was rotated while rotating the M1 stepping motor 14 at an angle corresponding to the number of indexing indicated in the prescription, the disk portion 23 was attached to the disk portion 23. The scraping member 25 (see FIG. 3) releases one packet of the drug to the hopper 6. The drug released into the hopper 6 is housed in the continuous wrapping paper B mounted on the known wrapping machine 3 from the lower part of the hopper 6. Further, the continuous wrapping paper B is sealed by the vertical sealing device 26 and the horizontal sealing device 27, so that the continuous individual wrapping can be completed.

In this drug scraping device 24, the arm body 28 is rotatably attached to one end of the arm body 28 with respect to the upper base 18 by a shaft 29. A disk portion 23 is rotatably attached to the other end of the arm body 28. The arm body 28 is rotated by the vertical movement of the linear actuator 30, and the disk portion 23 is moved up and down. The upper and lower positions of the disk portion 23 correspond to the two modes of action of the drug scraping device 24. That is, the disk distribution device 5b (right side) in FIG. 2 shows the "disk sprinkling" state, and the disk distribution device 5a (left side) shows the "distribution" state.

At the time of "disc sprinkling", the linear actuator 30 is driven upward. As a result, the arm body 28 keeps the disk portion 23 away from the outer peripheral ring 16 of the distribution disk 17 against the urging force of the spring 31. In this state, the drug is discharged from the drug container 21 while the distribution disk 17 is rotated by the M1 pulse motor 14, and a donut-shaped laminate P of the drug is formed on the outer peripheral ring 16 of the distribution disk 17. Further, at the time of "distribution", the linear actuator 30 is driven downward in order to bring the disk portion 23 into contact with the outer peripheral ring 16 as shown on the left side of FIG. The urging force R on the outer peripheral ring 16 of the disk portion 23 at this time is due to the own weight of the disk portion 23 and the pulling force of the spring 31.

Further, as shown in FIG. 3, the disk portion 23 is provided with a pressure contact disk 33, a central hub 34, and a partition plate 35 coaxially with the central shaft 32. The scraping member 25 is in contact with the pressure contact disc 33 and the partition plate 35 on its side surface, extends radially from the central hub 34, and is provided at two positions offset by 180 degrees. The partition plate 35 is not a disk, but has an elongated shape extending from one outer circumference to the other outer circumference at a position where the scraping member 25 is provided, having the same width as the central hub 34. Further, a scraped rubber material 37 is provided at the tip of the scraped member 25. Further, an M2 stepping motor 32a directly connected to the central shaft 32 is attached to the disk portion 23. Then, when the M2 stepping motor 32a is driven to rotate the disk portion 23 by 180 degrees with the disk portion 23 in contact with the outer peripheral ring 16, the disk portion 23 exists inside the pressure welding disk 33 and the partition plate 35. The chemicals to be used are scraped out by the scraped rubber material 37 and released to the hopper 6.

Further, a circumferential rubber material 36 having a relatively high hardness and high wear resistance is wound around the entire circumference of the pressure-welded disk 33. By matching the diameter of the circumferential rubber material 36 with the curvature of the downward convex curved surface 15 of the outer peripheral ring 16, the outer peripheral ring 16 and the pressure-welded disk 33 are brought into close contact with each other so as not to generate a gap. In this way, the chemical is prevented from being left unscraped, and the slight mechanical dimensional difference is maintained in close contact by the elastic deformation of the circumferential rubber material 36.

The scraped rubber material 37 provided at the end of the scraped member 25 is a material having a hardness lower than that of the circumferential rubber material 36 on the outer periphery of the pressure welding disk 33. Further, as shown in FIG. 3A, the scraped rubber material 37 protrudes slightly from the diameter of the circumferential rubber material 36 on the outer periphery of the pressure welding disk 33 by the dimension G1. This is due to the relatively large elastic deformation of the scraped rubber material 37 against the fact that the three-dimensional cylindrical shape of the outer peripheral ring 16 and the two-dimensional cylinder of the disk portion 23 cannot be strictly adhered to each other. This is to maintain the close contact between the 16 and the scraped rubber material 37. Further, as shown in FIG. 3A, the radius of the partition plate 35 is smaller than the rubber material 36 on the outer periphery of the pressure welding disk 33 by the dimension G2.

As described above, the dimensional relationship of the disk portion 23 is extremely important for preventing the chemicals from being left behind due to the generation of gaps in each portion. Therefore, the circumferential rubber material 36 and the scraped rubber material 37 should be replaceable when worn. Suitable. Similarly, it is also important to maintain the urging force R on the outer peripheral ring 16, and in this embodiment, this is maintained by the own weight of the disk portion 23 and the pulling force of the spring 31. It is also possible to maintain the urging force R more strictly by providing a separate weight mechanism and adjusting the mass of the weight. Further, it is also preferable to control the urging force R more strictly by using a force-controllable motor such as a servo motor instead of the spring 31 as a means for rotating the arm body 28. Further, a considerable function can be realized by rotating the cylindrical cam by a motor instead of the linear actuator 30.

The configuration of the upper base 18 side for maintaining the urging force R and the close contact with the outer peripheral ring 16 of the disk portion 23 has been described in detail above. Maintaining the rigidity of the disk support 9 that receives a couple is also an important issue. That is, if one of the disk support bases 9 is deformed downward by the urging force R, the close contact relationship between the outer peripheral ring 16 and the disk portion 23 is slightly deviated, which leads to unscraped chemicals. Is.

Correspondingly, as shown in FIG. 2, support stand fixing devices 38a and 38b (fixing means) are arranged to face each other on both sides of the disk support bases 9 of the two disc distribution devices 5a and 5b. ing. As shown in FIG. 4, a vertical engaging arm 41 is rotatably attached to a shaft 40 fixed to a holding table 39 attached to an intermediate table 4 (weighing unit mounting table). An arc-shaped engaging element 42 is formed on the upper portion of the engaging arm 41, and a concave cam groove 43 is formed on the lower end side.

A cylindrical cam 46 directly connected to the rotating shaft 45 of the M3 motor 44 attached to the holding base 39 is attached to the cam groove 43 in contact with the cam groove 43. When the M3 motor 44 is rotated 180 degrees, the cylindrical cam 46 moves from the top dead center to the bottom dead center with respect to the cam groove 43, so that the upper engaging element 42 can swing left and right. In FIG. 4B, the intermediate table 4 and the holding table 39 are omitted.

V-shaped grooves 47 are formed on the left and right side surfaces of the disk support base 9 (only one V-groove is shown in FIG. 4), and the cylindrical cam 46 comes to the top dead center as shown in FIG. 4 (a). And the engaging element 42 engages with the V-shaped groove 47 of the disk support base 9. By executing this engaging operation with the left and right support base fixing devices 38a and 38b, the disk support base 9 is restricted from moving in the vertical direction with respect to the intermediate base 4 and fixed. As a result, the position of the outer peripheral ring 16 of the distribution disk 17 does not change due to an external force such as the urging force R. Therefore, there is no gap between the outer peripheral ring 16 and the disk portion 23, and there is no residue left on the chemicals.

Further, when the cylindrical cam 46 reaches the bottom dead center as shown in FIG. 4B, the engaging element 42 is disengaged from the V-shaped groove 47 of the disk support base 9. Therefore, all the loads on the disk support 9 are concentrated on the load point 8 of the electronic scale 7, so that the mass of the distribution disk portion 17 and the like can be accurately weighed.

For the fixing operation of the fixing device of the disk support base 9, not only the engagement method using a cam as described above, but also the engaging element may be operated by a linear actuator, and the disk support base 9 may be separately operated. A modified example is the method of sandwiching from the left and right with something like a vise.

The operation of the disk weighing type drug packaging device having the above configuration will be described. The action is performed in two stages of "disc-spreading" and "allocation" by a program (not shown). At the time of "disc sprinkling", the engaging elements 42 of the left and right support base fixing devices 38a and 38b are held at the positions shown in FIG. 4B to release the engagement. Then, the drug is sprinkled on the outer peripheral ring 16 of the distribution disk 17 while measuring the weight of the distribution disk 17. Further, at the time of "distribution", the engaging element 42 is held at the position shown in FIG. 4A and engaged with the engaging element 42 to control the movement of the disk support base 9.

In addition, the fixing operation of the support base fixing device is not only during operation, but also by keeping the main body in a fixed state during transportation, it is possible that the electronic scale will be damaged due to unnecessary external force due to vibration during transportation. It can also be prevented.

FIG. 5 is a front view of a modified example of the support base fixing device. An electronic scale 48 is placed on the intermediate table 4 via vibration-proof materials 49a and 49b for vibration insulation of the electronic scale 7. In this case, as shown in FIG. 5A, the deformation of the lower structure due to the urging force R on the outer peripheral ring 16 of the disk portion 23 is deformed as a whole of the electronic scale 48 because the vibration isolator 49b sinks. Resulting in.

In the case of such a structure, if the support base fixing device 38 is attached to the electronic scale 48, the support base fixing device 38 is also integrally deformed. However, by attaching the support base fixing device 38 to the intermediate base 4 as shown in FIG. 5B, the anti-vibration material 49b does not sink due to the urging force R on the outer peripheral circular ring 16 of the disk portion 23. No deformation occurs.

In the first embodiment, the scraping device 24 is supported by the upper support base 18 so as not to apply a load to the load point 8 of the scale 7. Then, when the medicine is scraped out by the rotating plate 23 of the scraping device 24, the distribution disk 17 is restricted from moving with respect to the intermediate table 4 which is the weighing unit mounting table. In the second embodiment, as shown in FIG. 6, the scraping device 24 itself is fixed to the disk support 9 placed on the load point 8 of the scale 7 constituting the weighing unit.

In order to realize the above, the components equivalent to those in FIGS. 1 and 2 are given the same number in FIG. 6, but the electronic scale 7 constituting the weighing unit is placed on the intermediate table 4 as the main part thereof. There is. Then, the disk support base 9 (base portion) is placed on the load point 8 on the upper part of the electronic scale 7. A vertical fixed shaft 10a is fixed above the load point 8 of the disk support 9 by a holding portion 11a. A gear 12a is attached to the fixed shaft 10a via a bearing 12b, and can be rotationally driven by an M1 stepping motor 14 via the gear 13. Further, a distribution disk 17 having an outer peripheral ring 16 (arc-shaped concave surface) having a downwardly convex curved surface 15 is attached to the gear 12a concentrically with the fixed shaft 10a. That is, the gear 12a and the distribution disk 17 are rotatably attached to the fixed shaft 10a. Further, an upper base 18 is attached to the upper end of the fixed shaft 10a, and a scraping device 24 is attached to the upper base 18. Further, the shaking table 20 and the drug container 21 are suspended and attached by a hanging member 19 from the upper part of a housing (not shown). By doing so, the distribution disk 17 can be rotatably attached and the upper base 18 can be fixedly attached without rotating on one central axis.

With this configuration, the distribution disk 17 and the scraping device 24 are fixed to the same disk support base 9, so that the distribution disk 17 moves even if the distribution disk 17 is pushed by the rotating plate 23 of the scraping device 24. There is no. That is, supporting the scraping device 24 and the distribution disk 17 with the same support itself constitutes a movement restricting means.

Therefore, it is possible to obtain the effect of reducing the amount of chemical residue left on the outer peripheral ring 16 of the distribution disk 17.
With this structure, the mass applied to the load point 8 of the electronic scale 7 is added to the mass of the scraping device 24 on the upper support base 18, so it is necessary to be able to measure a large mass as a scale.

As described in detail above, according to the present invention, the movement of the distribution disk due to the urging force of the disk portion at the time of "allocation", which is a problem peculiar to the disk weighing method and has been desired to be solved, is restricted to the distribution disk. It is possible to significantly reduce the amount of chemical residue left on the surface. Moreover, it can be realized by a relatively simple mechanism, which can prevent the weight reduction of the drug mass for one package, which is the most important in the drug packaging, and can improve the reliability of the dispensing business. .. This is to further improve the reliability of the disc weighing type drug packaging machine created to improve the accuracy of the weight of the drug contained in the packaged individual package. Further, as a result, the amount of chemical residue left on the distribution disk is reduced, so that the device for removing and cleaning the drug can be simplified.

Although some embodiments and modifications of the present invention have been described, these embodiments and modifications are presented as examples and are not intended to limit the scope of the invention. These novel embodiments and modifications can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 Disk weighing type drug packaging machine (drug packaging device)
3 Packaging machine 4 Intermediate table (Weighing unit mounting table)
5 Disc distribution device 6 Hopper 7 Electronic scale (weighing unit)
9 Disc support base (base)
14 M1 stepping motor (rotary drive unit)
16 Outer circular ring (arc-shaped concave surface)
17 Distribution disk 21 Drug container 23 Disk part 24 Drug scraping device 25 Scraping member 38 Support stand fixing device (movement control means)

Claims (5)

A distribution disk with a continuous arcuate concave surface formed on the upper surface in the outer peripheral direction,
A drug container that drops and supplies the drug little by little onto the arcuate concave surface of the distribution disk, and
A rotary drive unit on which the distribution disk is placed and rotationally drives the distribution disk,
The weight of the drug supplied from the drug container to the distribution disk by being placed on a weighing unit mounting table provided below the rotation drive unit and measuring the total weight of the distribution disk and the rotation drive unit. Weighing unit to measure and
A drug scraping device having a rotating plate that rotates in contact with the arcuate concave surface of the distribution disk, and discharging the drug from the arcuate concave surface one packet at a time by rotating the rotating plate.
A movement regulating means for restricting the movement of the distribution disk with respect to the weighing unit mounting table at least when the drug is released by the drug scraping device.
A packaging device for packaging the drug scraped by the drug scraping device, and a packaging device.
Drug packaging device with. The distribution disk and the rotation drive unit are placed on a base portion provided on a load point of a scale constituting the weighing portion.
The drug scraping device is supported at a position where the load is not applied to the load point of the scale.
The movement restricting means has a fixing means for fixing the base portion to the weighing unit mounting table when the medicine is released by the drug scraping device.
The drug packaging device according to claim 1. The fixing means of the movement restricting means releases the fixing of the base portion when the medicine is supplied from the medicine container to the distribution disk, and fixes the base portion to the weighing unit mounting table when the medicine is scraped out.
The drug packaging device according to claim 2. The scale constituting the weighing unit is placed on the weighing unit mounting table via a vibration-proof material.
The drug packaging device according to any one of claims 1 to 3. The distribution disk and the rotation drive unit are provided on a base portion placed on a load point of the scale that constitutes the weighing portion.
The movement restricting means regulates the movement of the distribution disk with respect to the weighing unit mounting table by supporting the drug scraping device on the table.
The drug packaging device according to claim 1.

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