JP2021195144A - Medicinal powder supply device and medicinal powder dispensing/packaging device - Google Patents

Abstract

To provide a medicinal powder supply device and a medicinal powder dispensing/packaging device such that a medicinal powder discharge mechanism is provided in a medicine storage part and structures thereof are simple.SOLUTION: A medicinal powder supply device has: a cylindrical medicine storage part body which stores medicinal powder inside; a bottom lid where a hole part which closes a lower part of the medicine storage part body and also drops medicinal powder from the medicine storage part body and a spiral guide wall which extends downward from a center part to an outer peripheral part are formed; a rotary body which is provided rotatably below the bottom lid, and rotates with a top surface in contact with a reverse surface of the guide wall to mount the medicinal powder dropped through the hole part of the bottom lid, moves the medicinal powder from an inner peripheral side to an outer peripheral side along the guide wall accompanied with the rotation, and discharge it from a discharge hole formed at an outer peripheral end; and a rotary shaft which is provided in the medicine storage part body through a through hole formed in the bottom lid, and drives and rotates the rotary body.SELECTED DRAWING: Figure 6

Description

The present invention relates to a powder dispensing device that supplies powder in small amounts and a powder packaging device that supplies and packages powder in batches.

In the conventional powder packaging device, a pharmacist measures the weight of a powder for one prescription, and the measured powder is stored in a hopper. The hopper has a vibrating surface whose bottom surface is slightly inclined downward from the horizontal plane, and by vibrating the vibrating surface, internal powder is discharged through the discharge port and wound in a concave groove provided on the outer periphery of the rotating disk. This forms a ring-shaped pile of powdered medicine. Then, one packet at a time is released from the ring-shaped pile of powder and stored in the wrapping paper. However, this requires the pharmacist to weigh the powder each time, which imposes a heavy burden on the pharmacist. In order to solve this problem, there is a case in which powder is discharged from a cassette containing powder by using an operating device, and the discharged powder is weighed by a measuring device (Patent Document 1).

Further, a supply device for discharging powder from below a cylindrical container has also been developed (Patent Document 2).

Japanese Unexamined Patent Publication No. 7-80043 Japanese Unexamined Patent Publication No. 2019-94171

However, in the technique described in Patent Document 1, the mechanism of the operating device for discharging the powder from the cassette to the measuring device becomes complicated. Further, the technique described in Patent Document 2 has a problem that the driving mechanism for discharging powder from the container little by little becomes complicated.

An object of the present invention to be solved is to provide a powder powder release mechanism in a drug storage unit, and to provide a powder supply device and a powder packaging device having a simple structure.

The powder supply device of the present invention has a cylindrical drug accommodating portion main body for accommodating powder inside, a hole portion for closing the lower part of the drug accommodating portion main body, and a hole portion for dropping powder from the drug accommodating unit main body, and a lower side. A bottom lid in which a spiral guide wall from the central portion to the outer peripheral portion is formed, and a rotatably provided lower portion of the bottom lid, the upper surface of which is rotatably provided in contact with the lower surface of the guide wall, thereby rotating. The powder that has fallen through the hole in the bottom lid is placed, and the powder is transferred from the inner peripheral side to the outer peripheral side along the guide wall as it rotates, and is discharged from the discharge port formed at the outer peripheral end. It has a rotating body to be used, and a rotating shaft provided in the main body of the drug accommodating portion through a through hole formed in the bottom lid to rotationally drive the rotating body.

Further, the powder packaging device of the present invention has a cylindrical drug accommodating portion main body for accommodating the powder inside, and a hole portion for closing the lower part of the drug accommodating portion main body and dropping the powder from the drug accommodating portion main body. A bottom lid in which a spiral guide wall from the center to the outer periphery is formed on the lower side, and a rotatably provided lower portion of the bottom lid, the upper surface thereof rotates in contact with the lower surface of the guide wall. As a result, the powder that has fallen through the hole in the bottom lid is placed, and the powder is transferred from the inner peripheral side to the outer peripheral side along the guide wall as it rotates, and is formed at the outer peripheral end. A distribution disk that receives the powder discharged from the outlet and rotates to distribute the powder evenly in the vicinity of the outer periphery, a rotation drive unit on which the distribution disk is placed and rotationally drives the distribution disk, and the rotation drive. From the weighing unit provided below the unit and measuring the weight of the powder supplied from the powder supply device to the distribution disk by measuring the total weight of the distribution disk and the rotation drive unit, and from the distribution disk. It has a packaging device that releases and packages powders one by one.

The perspective view of the disk distribution part of the powder packaging apparatus of 1st Embodiment. The front view of the disk distribution part of the powder packaging apparatus of 1st Embodiment. The perspective view of the powder medicine supply device of 1st Embodiment. A perspective view showing a part of the lower part of the drug storage container of the first embodiment. FIG. 3 is a cross-sectional view showing a part of the lower part of the drug storage container of the first embodiment. The figure which shows the bottom cover and the rotating body of the medicine containing container of 1st Embodiment. The figure for demonstrating the operation which discharges powder from the drug containing container of 1st Embodiment. The figure which shows the modification of the bottom cover and the rotating body of the medicine containing container of 1st Embodiment. The figure for demonstrating the modification of the operation of discharging powder from the drug containing container of 1st Embodiment. The perspective view for demonstrating the shutter of the medicine containing container of 1st Embodiment. The figure for demonstrating the distribution disk of the powdered medicine packing apparatus of 1st Embodiment. The figure for demonstrating the relationship between the distribution disk of the powder | powder packaging apparatus of 1st Embodiment, and the powder | powder supply apparatus. The perspective view which shows the disk distribution part and the weighing part of the powder packaging apparatus of 1st Embodiment. The front view which shows the disk distribution part and the weighing part of the powder packaging apparatus of 1st Embodiment. The exploded front view of the disk distribution part and the rotation drive part of the powder packaging apparatus of 1st Embodiment. The block diagram of the powder packaging apparatus of 1st Embodiment. The flowchart which shows the operation of the powdered medicine packing apparatus of 1st Embodiment. The plan view which shows the disk distribution part, the weighing part and the packing part of the powdered medicine packing apparatus of 2nd Embodiment. The front view which shows the disk distribution part, the weighing part, and the packing part of the powder packaging apparatus of 2nd Embodiment.

(First Embodiment)
Hereinafter, the powdered medicine packaging device according to the embodiment will be described with reference to the drawings.

FIG. 1 is a perspective view of a disk distribution unit which is a part of the powder packaging device of the present embodiment, and FIG. 2 is a front view of the powder packaging device. In FIGS. 1 and 2, the disk distribution unit includes a weighing device 10, a rotation drive unit 30 arranged above the weighing device 10, and a powder distribution disk 20 installed above the rotation drive unit 30. The weighing device 10 is fixed to the housing connecting portion 16 of the packaging device via the vibration absorber 14. A powder supply device 60 fixed to a housing (not shown) is provided on the upper part of the distribution disk 20. The powder supply device 60 includes a powder storage container 62 detachably fixed to a support member 61 fixed to a housing (not shown), and a motor 63 for rotationally driving a rotating shaft in the powder storage container 62. Reference numeral 50 denotes a scraping section for scraping powder from the distribution disk 20 one packet at a time, and the powder scraped by the scraping section 50 is sent to a packaging device described later by a drop hopper 51.

Next, the powder supply device 60 will be described in detail with reference to FIGS. 3 to 10. 3A is a perspective view of the powder storage container 62, FIG. 3B is a perspective view of the inside, and FIG. 3C is a discharge port of the powder storage container attached to the lower part of the powder storage container 62. It is a perspective view of the spill guard 100c which prevents the powder discharged from the spill guard 100c from scattering around. In FIG. 3, the powder storage container 62 has a cylindrical drug storage unit main body 100 in which powder is stored, and a rotating shaft 102 rotatably provided in the drug storage unit main body 100. The drug accommodating portion main body 100 is composed of an upper main body 100a and a lower main body 100b, and can be separated into an upper main body 100a and a lower main body 100b when cleaning the inside. A passive side rotating body 104 of a magnetic non-contact power transmission mechanism is attached to the upper part of the rotating shaft 102. Further, a drive-side rotating body 106 is provided facing the passive-side rotating body 104, and the driving-side rotating body 106 is rotationally driven by a motor 63 which is a driving unit. Therefore, the rotation of the motor 63 causes the rotation shaft 102 to rotate. Although the passive side rotating body 104 and the driving side rotating body 106 are magnetic non-contact power transmission mechanisms here, they may be a power transmission mechanism using gears or a contact power transmission mechanism using rubber rollers or the like. A similar purpose can be achieved.

Next, the inside of the powder storage container 62 will be described in detail with reference to FIGS. 4 to 6. FIG. 4 is a perspective view of the lower main body 100b of the drug storage unit main body 100 constituting the powder storage container 62, and FIG. 5 is a cross-sectional view of the lower main body 100b of the drug storage unit main body 100. Further, FIG. 6 shows a bottom lid 110 and a rotating body 130 attached to the lower part of the lower main body 100b. FIG. 6A is a view of the bottom lid 110 viewed from directly below, and FIG. 6B is an obliquely downward view of the bottom lid 110. The figure seen from above, (c) is the figure which looked at the rotating body 130 from diagonally above. The powder storage container 62 is composed of the drug storage unit main body 100, the bottom lid 110, the rotating body 130, and the rotating shaft 102.

As shown in FIGS. 4 and 5, a bottom lid 110 is provided at the lower part of the lower main body 100b of the drug accommodating portion main body 100. The bottom lid 110 is composed of a disk 112 that closes the lower part of the drug accommodating portion main body 100. Then, as shown in FIG. 6, a through hole 114 through which the rotating shaft 102 for rotating the rotating body 130 passes is formed in the central portion of the disk 112. Further, four holes 116a to 116d are formed around the through hole 114 of the disk 112 so that the powder contained in the drug accommodating portion main body 100 can fall.

On the other hand, on the lower side (back side) of the disk 112, a first guide wall 118a protruding downward is formed around the through hole 114. Further, a second guide wall 118b extending outward from the first guide wall 118a is formed. The second guide wall 118b extends spirally from the first guide wall 118a to the outer periphery of the disk 112. Further, a third guide portion 118c is formed from the middle of the second guide wall 118b so as to surround the four holes 116a to 116d. The third guide portion 118c is spirally formed so as to gradually approach the outer periphery of the disk 112, and the end thereof extends to the outer periphery of the disk 112. A guide wall is not formed on the outer periphery of the disk 112 between the end of the second guide wall 118b and the end of the third guide wall 118c. As a result, the powder discharge port 120 of the powder storage container 62 is formed between the end of the second guide wall 118b and the end of the third guide wall 118c. All of these guide walls 118a to 118c are formed at the same height.

Further, as shown in FIG. 5, a rotating body 130 is provided below the bottom lid 110. The rotating body 130 is provided at the lowermost part, and is urged upward by a compression spring 134 with respect to the first rotating body 132 fixed to the rotating shaft 102 and the first rotating body 132, and the first one. Made of silicon that is provided by adhering to a second rotating body 136 configured to rotate at the same time as the rotating body and the second rotating body 136, and rotates in contact with the guide walls 118a to 118c of the lid portion 110. It has a third rotating body 138 and the like. The compression springs are provided at four places, and the second rotating body is evenly attached upward. Further, since the second rotating body and the third rotating body move upward by the urging force of the compression spring, they are slidable with respect to the rotating shaft 102. The first rotating body 132 has an upwardly recessed shape, and its outer diameter is accommodated in an annular protrusion formed in the lower part of the second rotating body 136, whereby the second rotating body 132 is rotated. The body 136 is designed so that it does not twist in the direction of rotation.

By configuring the lid 110 and the rotating body 130 in this way, the powder that has fallen from the holes 116a to 116d of the lid 110 is placed on the third rotating body 138. Then, when the rotating body 130 rotates, the powder is transferred on the third rotating body 138 as shown by an arrow in FIG. 7, and is transferred in the rotation direction by the first to third guide walls 118a to 118c. Is restricted so that it is transferred toward the outer peripheral direction of the rotating body 130 along the guide walls 118a to 118c. Finally, the powder is discharged to the outside from the discharge port 120 between the second guide wall 118b and the third guide wall. Since the third rotating body 138 is pressed against the guide walls 118a to 118c by the compression spring 134, the powder does not pass between the third rotating body 138 and the guide walls 118a to 118c. In FIG. 7, the disk 112 is deleted, and only the first to third guide walls 118a to 118c and the rotating body 130 are shown.

In this way, a spiral powder passage is formed between the guide walls 118a to 118c and the rotating body 130, and the powder placed on the rotating body 130 passes through the spiral passage from the discharge port 120. It is released to the outside.

In FIGS. 4 and 5, 106 is a guide portion formed inside the lower main body 100b and guiding the powder inside the lower main body 100b so as to be guided to the holes 116a to 116d.

Next, a modified example of the bottom lid and the rotating body is shown in FIG. The main difference in the modified example is the shape of the guide wall. 8A and 8B are views of the bottom lid 210 viewed from directly below, FIG. 8B is a view of the bottom lid 210 viewed from diagonally below, and FIG. 8C is a view of the rotating body 230 viewed from diagonally above.

As shown in FIG. 8, a through hole 214 through which the rotating shaft 102 for rotating the rotating body 230 passes is formed in the central portion of the disk 212. Further, around the through hole 214 of the disk 212, four holes 216a to 216d are formed so that the powder contained in the drug accommodating portion main body 100 can fall.

On the other hand, on the lower side (back side) of the disk 212, a first guide wall 218a projecting downward is formed around the through hole 214. Further, a second guide wall 218b extending outward from the first guide wall 218a is formed. The second guide wall 218b extends spirally from the first guide wall 218a to the outer periphery of the disk 212. Further, the second guide wall 218b extends along the outer circumference of the disk 212, and is formed by leaving a part of the outer circumference without being formed on all the outer circumferences. As a result, the portion where the outer circumference of the second guide wall 218b is not formed constitutes the discharge port 220 of the powder storage container 62.

Further, a rotating body 230 is provided at the lower part of the bottom lid 210. The rotating body 230 is fixed to the rotating shaft 102, and the upper surface of the rotating body 230 is rotated in contact with the lower surfaces of the guide walls 218a and 218b of the bottom lid 210. As a result, as shown by an arrow in FIG. 9, a spiral powder passage is formed between the guide walls 218a and 218b and the rotating body 230, and the powder dropped on the rotating body 230 is spiral. It is discharged to the outside from the discharge port 220 through the passage.

Next, the shutter that closes the discharge port 120 of the powder storage container 62 will be described with reference to FIG. FIG. 10 is a perspective view showing the structure of the shutter 150 and its opening / closing mechanism 170 that forcibly close the discharge port from the discharge port 120 of the powder storage container 62 so as not to unnecessarily discharge the powder. The shutter 150 has a structure that closes the discharge port 120 from the outside, and is rotatably supported around a shutter fulcrum 150a attached to the side surface of the main body of the drug accommodating portion 100. A sealing portion 150b that closes the discharge port 120 of the powder storage container 62 is formed at the lower end of the shutter 150. Further, a pressing portion 150c for rotating is formed at the upper end which is the other end of the shutter 150. Further, a spring 152 that works in the extension direction is provided between the upper end side of the shutter 150 and the side surface of the main body of the drug accommodating portion 100, and the spring 152 rotates the sealing portion 150b in the direction of closing the discharge port 120. Being motivated.

The shutter opening / closing mechanism 170 is installed in a housing (not shown) away from the drug accommodating portion main body 100 at a position facing the shutter 150, and the shutter opening is released by pressing the pressing portion 150c of the shutter 150 at one end. The structure is such that the L-shaped opening / closing arm 173 provided with the pusher 174 is rotationally driven by the opening / closing arm drive unit (motor) 171 around the arm fulcrum 172. Normally, the powder is discharged from the discharge port 120 of the powder storage container 62 by locating the opening / closing arm 173 in a state where the shutter opening pusher 174 does not push the pressing portion 150c of the shutter 150 as shown in FIG. 10A. There is no. On the other hand, when the powder is discharged, the opening / closing arm drive unit 171 is operated and the opening / closing arm 173 is rotated 180 degrees, so that the shutter opening pusher 174 presses the shutter 150 as shown in FIG. 10 (b). When the 150c is pressed, the sealing portion 150b of the shutter 150 is separated from the powder storage container 62, and the powder can be discharged from the discharge port 120.

Next, the relationship between the powder discharge port 120 of the powder storage container 62 of the powder supply device 60 and the distribution disk 20 of the powder distribution unit will be described with reference to FIGS. 11 and 12. As shown in FIG. 11, the distribution disk 20 has an arcuate groove 22 formed in the circumferential direction in the vicinity of the outer periphery of the distribution disk 20. Then, the powder discharged from the powder storage container 62 is placed on the arc-shaped groove, and the distribution disk 20 rotates to form a pile of powder in a ring shape.

FIG. 12 is a top view of the relationship between the distribution disk 20 and the discharge port 120 of the powder storage container 62. FIG. 12A is the first example, in which the powder storage container 62 of the powder supply device is arranged in the upper part of the arcuate groove 22 provided near the outer periphery of the distribution disk 20. The discharge port 120 of the powder storage container 62 is arranged so as to face the circumferential direction of the circumference of the line (broken line) 24 connecting the centers of the arcuate grooves 22. As a result, the powder discharged from the discharge port 120 is widely deposited in the width direction of the groove (diameter direction of the distribution disk), which is effective when the amount of powder to be distributed is small.

Further, FIG. 12B is a second example, in which the powder storage container 62 of the powder supply device is arranged in the upper part of the arcuate groove 22 provided near the outer periphery of the distribution disk 20. The discharge port 120 of the powder storage container 62 is arranged toward the center of the circumference of the line (broken line) 24 connecting the centers of the arcuate grooves 22. As described above, the direction in which the discharge port 120 faces is not necessarily limited to the circumferential direction of the circumference of the line (broken line) 24 connecting the centers of the arcuate grooves 22.

Next, the powder packaging device will be described with reference to FIGS. 2 and 13 to 17.

FIG. 13 is a perspective view of the state in which the distribution disk 20 is removed from the disk distribution unit, and FIG. 14 is a front view of the state in which the distribution disk 20 is removed from the disk distribution unit. FIG. 15 is a diagram showing a state in which the rotary drive unit 30 is disassembled and the motor 32 and the pulley 38 are moved upward from the base 31 of the rotary drive unit 30.

As shown in FIGS. 13 to 15, the base 31 of the rotation drive unit 30 is fixed to the object mounting unit 12 of the weighing device 10. As shown in the exploded view of FIG. 15, a bearing 35 is fixed to the base 31, and a pulley 38 is rotatably provided around the bearing 35. A distribution disk base 36 is fixed to the upper part of the pulley 38, and a distribution disk 20 is detachably fixed to the upper part of the distribution disk base 36.

A timing gear is formed on the outer periphery of the pulley 38, and a timing belt 34 is hung between the timing gear 33 attached to the shaft of the motor 32 fixed to the base 31 and the pulley 38.

With such a configuration, the weighing device 10 includes the base 31 of the rotary drive unit 30 fixed to the object mounting portion 12 of the weighing device 10 and is provided on the base 31. It is possible to measure the total weight of 32, the pulley 38, the bearing 35, the distribution disk base 36, the distribution disk 20, and the like. In other words, the weight of the tare such as the rotary drive unit 30 is measured when the powder is not supplied to the distribution disk 20.

Returning to FIG. 2, the powder is dropped from the powder supply device 60 provided on the upper part of the distribution disk 20 into the groove of the distribution disk 20 little by little. The powder supply device 60 is fixed to the housing of the packaging device and is not a weight measurement target of the weighing device 10. Therefore, the weighing device 10 is the weight obtained by adding the weight of the powder supplied from the powder storage container 62 to the distribution disk 20 to the total weight of the rotary drive unit 30, the distribution disk 20, etc. fixed to the object mounting unit 12. Will be measured. Therefore, by subtracting the weight of the tare described above from the weight measured by the weighing device 10, the weight of the powder actually supplied from the powder storage container 62 to the distribution disk 20 can be calculated.

When the powder is supplied from the powder storage container 62 to the distribution disk 20, the powder is distributed from the powder storage container 62 onto the distribution disk 20 by rotating the motor 63 of the powder supply device 60 while rotating the distribution disk 20 by the motor 32. Drop it. As a result, a ring of powdered powder is formed on the distribution disk 20.

Further, reference numeral 50 denotes a scraping portion for dropping the annular powder formed on the distribution disk 20 onto the drop hopper 51 one by one. In the scraping portion 50, the lever 53 can be rotated up and down about the shaft 54 by the motor 52. A disk 55 is attached to the tip of the lever 53, and the motor 56 can rotate the disk 55 in the direction of the arrow 56a. When winding the powder around the rotating distribution disk 20, the lever 53 rotates counterclockwise to separate the disk 55 from the distribution disk 20, and when distributing the powder from the distribution disk 20, the lever 53 rotates clockwise. The disk 55 is in contact with the distribution disk 20.

Then, the powder 55 wound on the distribution disk 20 is dropped by the falling hopper 51 one by one by the rotation of the disk 55, and is housed between the folded papers 57. These scraping portions 50 are well-known techniques, and are described in, for example, Japanese Patent Application Laid-Open No. 2019-20201.

Here, the weighing device 10 is provided under the distribution disk 20, and the packaging paper 57 accommodating the powder cannot be conveyed in the horizontal direction as described in Japanese Patent Application Laid-Open No. 2019-20201. That is, in order to drop the powder discharged from the distribution disk 20 onto the drop hopper 51 and store it in the wrapping paper that is horizontally transported, it is necessary to make the drop hopper 51 vertically long. This means that the powder passes through the long falling hopper, and the amount of powder adhering to the falling hopper increases, so that the weight of the powder to be packaged may be inaccurate. Further, since the drop hopper 51 becomes large, the packaging device may also become large.

Therefore, as shown in FIG. 2, the packaging device 70 uses a diagonally transporting packaging device. That is, in the horizontal transport packaging device 70 having a roll (not shown) around which the folded paper 57 is wound, the bottom surface of the packaging device 70 is mounted obliquely with respect to the packaging device. ing. The packing paper 57 pulled forward from this roll is conveyed diagonally downward to the right on the front side.

Then, as shown in FIG. 2, the powder distributed from the distribution disk 20 is dropped onto the drop hopper 51 immediately below the distribution disk 20 and stored between the folded paper sheets 57. The packaging paper 57 containing the powder is sealed one by one in the packaging device 70, is transported diagonally in the lower right direction in the figure, passes under the weighing device 10, and is accumulated in the packaging drug accumulating section 75. Will be done. In this way, by making the transport path of the packing paper 57 of the packaging device 70 diagonally transportable, even if the weighing device 10 is provided below the distribution disk, the device can be configured without increasing the size. The packing paper 57 containing the powder may be wound by a reel provided in the packing medicine accumulating portion 75, or may be transported and discharged to the outside of the machine body. Although the packaging device 70 is described in a simplified manner in FIG. 2, it is actually configured as shown in FIG.

FIG. 16 is a block diagram of the powder packaging device. In FIG. 16, reference numeral 300 denotes a powder packaging device, and the overall control unit 310 thereof is connected to the prescription system 400 of the pharmacy. The packaging device 70 and the disk distribution control unit 340 of the disk distribution unit 330 are connected to the overall control unit 310. The disk distribution control unit 340 of the disk distribution unit 330 includes a first motor 32 for rotating the distribution disk 20, a second motor 52 for driving a scraped disc lever, a third motor 56 for disk rotation, and powder supply. The drive motor 63 and the weighing unit 10 of the device 60 are connected to each other.

Next, the weighing operation of the disk distribution unit configured in this way will be described with reference to FIG.

When the powder packaging operation is started, the overall control unit 310 acquires the type of powder to be prescribed and the weight information of the powder for one prescription from the prescription system 400 (ST1). The overall control unit 110 outputs the acquired weight information of the powder to the disk distribution control unit 340 of the disk distribution unit 330. After that, the disk distribution control unit 340 drives the motor 32 of the rotation drive unit 30 to rotate the distribution disk 20 (ST2), and the preparation for supplying the powder to the distribution disk 20 is completed. Then, before the powder is supplied, the weight of the tare such as the distribution disk 20 and the rotary drive unit 30 is measured (ST3). The weight of this tare may be subtracted from the weight measured after the powder is supplied to calculate the weight of the powder only, or the measured value of the tare may be used as a zero reference to obtain the weight of the powder only. You may.

After that, the disk distribution control unit 340 operates the shutter opening / closing (opening / closing arm drive) motor 171 to open the shutter of the powder storage container 62 (ST4), and rotationally drives the drive motor 63 of the powder supply device 60. (ST5), the powder is dropped from the powder storage container 62 onto the distribution disk 20 little by little. While dropping the powder in this way, the weight of the powder dropped on the distribution disk 20 by the weighing device 10 is measured (ST6).

Then, while supplying the powder, it is determined whether or not the measured weight of the powder reaches the weight of one prescription (ST7), and the weight of the supplied powder is continued until the weight of the powder reaches the weight of one prescription. .. When the weight of one prescription is reached, the drive of the drive motor 63 of the powder supply device 60 is stopped, and the shutter opening / closing (open / close arm drive) motor 171 is operated to close the shutter of the powder storage container 62. Further, the motor 32 of the rotary drive unit 30 is stopped (ST8). When the powder for one prescription is supplied to the distribution disk 20, the second motor 52 is rotated, the scraping disk 55 is moved so as to be in contact with the distribution disk 20, and then the third motor 56 and the distribution disk 20 are supplied. Is intermittently rotated, and a scraping operation is performed in which the powder is dropped onto the drop hopper 51 one packet at a time by the scraping portion 50 (ST9). The powder dropped on the drop hopper 51 is sealed one by one by the packaging device 70 and accumulated in the packaged drug accumulating section 75.

According to the first embodiment configured as described above, the powder can be discharged little by little from the powder storage container 62 to the distribution disk 20, and the mechanism is simple. Further, the weight of the powder actually supplied from the powder storage container 62 to the distribution disk 20 is weighed. Therefore, since the powder adhered to the member in the middle of supply is not measured, the accurate weight of the prescribed powder can be weighed.
(Second embodiment)
In the first embodiment, the weighing device 10 is provided in the disk distribution unit to measure the weight of the distribution disk unit. When two sets of such disc distribution units are provided and the powder distributed from the two sets of distribution discs is to be stored between the packing papers by a common drop hopper, the weighing device 10 exists, so that the packing papers are horizontal. Cannot be transported. That is, in order to store the powder between the horizontally conveyed packaging papers, the falling hopper receives the powders directly under the distribution disk, and the powders are stored in the packaging paper below the weighing device 10. This is because the falling hopper becomes long in the vertical direction, and even though the weight of the powder is accurately weighed at the distribution disk, the amount of powder adhering to the falling hopper increases, and the powder is packaged. The amount may be inaccurate. Therefore, in the second embodiment, two sets of disk distribution sections are provided, and the powder discharged from each of the two sets of distribution disks is received by a single drop hopper provided between the two sets of distribution disks. The packing paper is conveyed along a transport path diagonally configured from the lower part of the distribution disk of one disk distribution section to the lower part of the weighing section of the other disk distribution section. As a result, the drop hopper can be made small, and it is possible to prevent the amount of powder powder packaged in each packet from being reduced by adhering to the drop hopper.

18 and 19 show a second embodiment, FIG. 18 shows a plan view, and FIG. 19 shows a front view. In FIGS. 18 and 19, the same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

That is, two sets of a weighing device 10, a rotary drive unit 30, a distribution disk 20, a powder supply device 60, and a scraping unit 50 are provided symmetrically on the left and right sides. Between the two sets of distribution discs 20, a single drop hopper 51 for receiving the powder discharged from the two sets of scraping portions 50 is provided.

Further, in the wrapping device 70, the horizontal transport wrapping device 70 having a roll R around which the folded paper 57 is wound is mounted so that the bottom surface of the wrapping device 70 is obliquely mounted on the wrapping device. It has become. Then, the packing paper 57 pulled forward from the roll R located at the lower part of one of the distribution discs 20 is carried along the packing paper transport path 71 diagonally downward at the front portion, and is carried along the lower portion of the drop hopper 51. Is inserted between the packaging papers 57, and powder is stored between the packaging papers 57 from the falling hopper 51. The packaging paper 57 containing the powder is further transported diagonally downward along the packaging paper transport path 71, and is heat-sealed for each package by the heat-sealing portion 72. Then, after the perforations are formed in the heat-sealed portion by the perforation forming portion 73, the perforations are accumulated in the packaging powder accumulating portion 75. In addition, the packaged drug containing the drug may be wound up by a reel provided in the packaged powder collecting unit 75, or may be transported to the outside of the machine body and discharged.

As described above, according to the second embodiment, even in the case of two sets of disk distribution units provided with the weighing device, the packing paper is distributed from the lower part of the distribution disk of one disk distribution unit to the other disk distribution unit. Since the weighing device is transported along a transport path configured downward, the device can be accurately weighed and packaged without increasing the size of the device.

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 modifications 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.

10 ... Weighing part 20 ... Distribution disk 30 ... Rotational drive part 22 ... Arc-shaped groove 24 ... Groove center line 50 ... Scraping part 51 ... Falling hopper 60 ...・ Powder supply device 62 ・ ・ ・ Powder storage container 63 ・ ・ ・ Powder supply motor 70 ・ ・ ・ Packaging device 100 ・ ・ ・ Drug storage unit main body 100a ・ ・ ・ Upper main body 100b ・ ・ ・ Lower main body 102 ・ ・ ・Rotating shafts 110, 210 ... Bottom lid 112, 212 ... Disk 114 ... Through holes 116a to 116d, 216a to 216d ... Holes 118a, 218a ... First guide walls 118b, 218b ... Second guide wall 118c ... Third guide wall 120, 220 ... Discharge port 130, 230 ... Rotating body 150 ... Shutter 150a ... Shutter fulcrum 150b ... Sealing part 150c ・ ・ ・ Pressing part 152 ・ ・ ・ Spring 170 ・ ・ ・ Shutter opening / closing mechanism 173 ・ ・ ・ Opening / closing arm 174 ・ ・ ・ Shutter opening pusher R ・ ・ ・ Packaging paper roll

Claims (9)

A cylindrical drug storage unit that stores powder inside, and
A bottom lid in which a hole for dropping powder from the drug containing body and a spiral guide wall from the center to the outer peripheral portion are formed on the lower side while closing the lower part of the drug containing body.
It is rotatably provided on the lower part of the bottom lid, and the upper surface thereof rotates in contact with the lower surface of the guide wall, so that the powder that has fallen through the hole of the bottom lid is placed and the powder is placed along with the rotation. A rotating body that transfers the powder from the inner peripheral side to the outer peripheral side along the guide wall and discharges it from the discharge port formed at the outer peripheral end.
A rotating shaft provided in the main body of the drug accommodating portion through a through hole formed in the bottom lid and driving the rotating body to rotate,
Powder supply device with. The bottom lid is
A disk that closes the lower part of the drug storage unit,
A through hole formed in the center of the disk through which the axis of rotation passes,
It has a plurality of holes for dropping powder, which are formed around the through holes of the disk.
The guide wall formed on the lower side of the disk
A first guide wall formed around the through hole,
A second guide wall formed in a spiral shape from the first guide wall toward the outer circumference of the disk, and a second guide wall.
It has a third guide wall formed in a spiral shape from the middle of the second guide wall toward the outer circumference of the disk.
A discharge port is formed between the outer peripheral edge of the second guide wall and the outer peripheral edge of the third guide wall.
The powder supply device according to claim 1. The bottom lid is
A disk that closes the lower part of the drug storage unit,
A through hole formed in the center of the disk through which the axis of rotation passes,
It has a plurality of holes for dropping powder, which are formed around the through holes of the disk.
The guide wall formed on the lower side of the disk
A first guide wall formed around the through hole,
It has a second guide wall formed in a spiral shape from the first guide wall toward the outer circumference of the disk, and formed along the outer circumference of the disk, leaving a part of the outer circumference. ,
The discharge port is formed at a portion where the outer circumference of the second guide wall is not formed.
The powder supply device according to claim 1. A shutter provided outside the main body of the drug accommodating portion to regulate the release of powder from the discharge port, and a shutter.
A shutter opening / closing mechanism that drives the opening / closing of the shutter,
The powder supply device according to any one of claims 1 to 3, further comprising. The shutter is
The intermediate portion is rotatably pivotally supported outside the main body of the drug accommodating portion, a sealing portion that closes the discharge port is formed at one end, and a pressing portion for rotation is formed at the other end. The sealing portion is configured to be rotationally urged in a direction to close the discharge port.
The shutter opening / closing mechanism is
An opening / closing arm provided with a shutter opening pusher at the end that presses the pressing portion of the shutter, and
A drive unit that rotationally drives the open / close arm,
4. The powder supply device according to claim 4. The powder supply device according to any one of claims 1 to 5.
A distribution disk that receives the powder supplied from the powder supply device and rotates it so that the powder is evenly distributed in the vicinity of the outer circumference.
A rotary drive unit on which the distribution disk is placed and rotationally drives the distribution disk,
A weighing unit provided below the rotation drive unit and measuring the total weight of the distribution disk and the rotation drive unit to measure the weight of the powder supplied from the powder supply device to the distribution disk.
A packaging device that discharges and packages powders one by one from the distribution disk, and
Powder packaging device with. The powder supply device is not subject to weight measurement of the weighing unit.
The powder packaging device according to claim 6. An arcuate groove is formed in the vicinity of the outer periphery of the distribution disk along the circumferential direction, the main body of the drug accommodating portion of the powder supply device is arranged in the upper part of the groove, and the discharge port of the powder supply device is the above. Arranged in the circumferential direction of the circumference connecting the centers of the grooves,
The powder packaging device according to claim 6 or 7. An arcuate groove is formed in the vicinity of the outer periphery of the distribution disk along the circumferential direction, the main body of the drug accommodating portion of the powder supply device is arranged in the upper part of the groove, and the discharge port of the powder supply device is the above. Arranged toward the center of the circumference connecting the centers of the grooves,
The powder packaging device according to claim 6 or 7.

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