JP2022012821A - Powder medicine feeding device and powder medicine packaging device - Google Patents

Abstract

To provide a powder medicine feeding device that eliminates the need of translocating powder medicine prepared by crushing a tablet to a powder medicine packaging device, and to provide a powder medicine packaging device.SOLUTION: A powder medicine feeding device includes: a tablet storage part for storing a tablet therein; a tablet crushing part provided in a lower part of the tablet storage part to generate powder medicine by crushing the tablet stored in the tablet storage part; a powder medicine storage part provided in a lower part of the tablet crushing part to store the powder medicine generated by the tablet crushing part; and a powder medicine discharge part for discharging the powder medicine stored in the powder medicine storage part by small amount.SELECTED DRAWING: Figure 4

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.

For patients who have difficulty swallowing tablets, the tablets may be crushed and prescribed in powder form. When packaging powdered medicines one by one with a packing paper, the pharmacist has traditionally made the tablets into powders with a crusher or a mortar, transferred them to the cassette of the powder packing machine, and put them in the groove of the rotating disk. It was common to supply and package one package at a time (Patent Document 1 and Patent Document 2).

Japanese Patent Application Laid-Open No. 2003-53208 Japanese Unexamined Patent Publication No. 2020-340

However, in the technique described in Patent Document 1, the pharmacist must transfer the powder obtained by crushing the tablet to the cassette of the powder packaging device as described in Patent Document 2, which causes a problem that the pharmacist takes time and effort.

An object to be solved by the present invention is to provide a powder supply device and a powder packaging device that do not need to transfer a powder obtained by crushing a tablet to a powder packaging device.

The powder supply device of the present invention includes a tablet storage unit that stores tablets inside, and a tablet crushing unit that is provided below the tablet storage unit and crushes the tablets contained in the tablet storage unit to generate powder. It has a powder storage unit provided below the tablet crushing unit and accommodating the powder generated in the tablet crushing unit, and a powder discharge unit that releases the powder contained in the powder storage unit little by little.

Further, the powder packaging device of the present invention is provided in a tablet accommodating portion for accommodating tablets inside and a tablet provided under the tablet accommodating portion and crushing the tablets contained in the tablet accommodating portion to generate powder. Discharge from the crushing unit, the powder storage unit provided below the tablet crushing unit and accommodating the powder generated in the tablet crushing unit, and the powder discharging unit that releases the powder contained in the powder accommodating unit little by little. A distribution disk that receives the powdered powder and rotates it so that the powder is evenly distributed in the vicinity of the outer circumference, a rotary drive unit that drives the distribution disk to rotate, and a package that discharges the powder one packet at a time from the distribution disk for packaging. Has a packaging device.

The perspective view of the disk distribution part of the powdered medicine 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. Sectional drawing of the powder | powder supply apparatus of 1st Embodiment. Sectional drawing of the tablet crushing part of 1st Embodiment. The perspective view which shows the fixed blade and the rotary blade of the tablet crushing part of 1st Embodiment. The perspective view which looked through the inside of the powder medicine accommodating part and the powder medicine discharging part of 1st Embodiment. Sectional drawing of the powder medicine accommodating part and powder powder discharging part of 1st Embodiment. The figure which shows the bottom cover and the rotating body of the powder discharge part of 1st Embodiment. The figure for demonstrating the operation which releases the powder of the powder discharge part of 1st Embodiment. The cross-sectional view which shows the modification of the powder | powder supply apparatus of 1st Embodiment. The perspective view which shows the drive source of the modification of the powder | powder supply apparatus of 1st Embodiment. 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 flowchart which shows the operation of the modification 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 powder packaging apparatus of 2nd Embodiment. The front view which shows the disk distribution part, the weighing part and the packing part of the powdered medicine packing apparatus of 2nd Embodiment.

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

FIG. 1 is a perspective view of a disk distribution portion which is a part of the powder packaging device of the first 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. The weighing device 10 is for measuring the weight of the powder sprinkled on the distribution disk, and may not be required when the weight measurement is unnecessary. 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 supply container 62 that is detachably fixed to a support member 61 fixed to a housing (not shown), and a motor 63 that rotationally drives a rotating shaft in the powder supply container 62. Reference numeral 64 denotes a transmission optical sensor (falling powder detecting means) for detecting powder falling from the powder supply 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. FIG. 3 is a perspective view of the powder supply container 62, and FIG. 4 is a cross-sectional view in which the drive source of the powder supply container 62 is omitted. In FIGS. 3 and 4, the powder supply container 62 has a cylindrical drug accommodating portion, and a tablet accommodating portion 80 is provided at the uppermost portion. Further, a tablet crushing unit 90 for crushing tablets stored in the tablet storage unit 80 to generate powder is provided in the middle portion of the powder supply container 62. Further, a powder storage unit 100 is provided in the lower part of the powder supply container 62 to store and store the powder produced by crushing the tablets in the tablet crushing unit 90. At the lowermost part of the powder supply container 62, a powder discharge unit 108 is provided, which discharges the powder contained in the powder storage unit 100 downward little by little.

At the center of the cylindrical container of the powder supply container 62, a rotation shaft for driving the crushing mechanism of the tablet crushing unit 90 and the powder discharging mechanism of the powder discharging unit 108 is provided. The powder supply container 62 is configured to be divisible into three units of a tablet storage unit 80, a tablet crushing unit 90, and a powder storage unit 100, and when cleaning the powder supply container 62, each unit can be disassembled and cleaned. ing. When divided into these three units, the rotation axis can also be separated in each unit. That is, irregularities are formed between the rotation shafts of each unit on the outer circumference and the inner circumference, and the units can be separated in the axial direction, and when the shafts are fitted, the driving force in the rotation direction can be transmitted.

Then, as shown in FIG. 3, a passive side rotating body 104 of a magnetic non-contact power transmission mechanism is attached to the upper part of the rotating shaft 82 of the uppermost tablet accommodating portion 80. 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 82 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 supply container 62 will be described with reference to FIG. As shown in FIG. 4, screws are formed on the lower outer circumference of the tablet storage container 80 and the upper inner circumference of the tablet crushing container 90, respectively, and are detachable by relatively rotating the container. Further, a rotation shaft 82 is provided at the center of the tablet storage container 80.

On the other hand, screws are formed on the lower outer circumference of the tablet crushing portion 90 and the upper inner circumference of the powder storage container 100, respectively, and can be attached and detached by relatively rotating the container. Further, a rotating shaft 92 is provided at the center of the tablet crushing container 90. The inner surface of the tablet crushing portion 90 is formed in a conical shape, and the tablets contained in the tablet accommodating container 80 are collected and dropped in the central portion along the conical portion.

Next, the tablet crushing mechanism of the tablet crushing unit 90 will be described with reference to FIGS. 5 and 6. FIG. 5 is a cross-sectional view of the tablet crushing portion 90, and FIG. 6 is a perspective view of the fixed blade 93 and the rotary blade 94. A hollow fixing blade 93 is fixed to the central portion in the vertical direction of the tablet crushing portion 90. On the inner surface of the fixed blade 93, a blade divided into upper and lower parts is formed. The upper blade has a large pitch tooth, and the lower blade has a small pitch and is formed in a spiral shape. On the other hand, the rotary blade 94 constituting the rotating crushing mechanism has a conical shape and is rotated together with the rotary shaft 92, and is provided inside the fixed blade 93. The rotary blade 94 is formed with a spiral groove 94a having a large pitch upward, so that the blade is formed at the end of the groove. Further, a spiral blade having a small pitch is formed in the lower portion of the rotary blade 94. When the rotary blade 94 rotates with respect to the fixed blade 93 formed in this way, the tablets that have fallen from above enter the upper gap and are roughly crushed by the teeth having a large pitch. The coarsely crushed tablet falls into the gap between the lower small pitch portion of the fixed blade 93 and the lower small pitch portion of the rotary blade 94, and is crushed into powder by the teeth having a small pitch to form a powder. Then, the powder powder produced by being crushed into powder falls downward from the gap between the fixed blade 93 and the rotary blade 94, and is housed in the powder storage unit 100 provided at the lower part of the tablet crushing unit 90. It should be noted that such a crushing mechanism is not new and is similar to a conical cutter for crushing coffee beans, and is disclosed in FIGS. 2 and 3 of JP-A-2016-15998, for example. Is similar to.

As shown in FIG. 5, the rotary shaft 92 is connected to the crushing rotary shaft 95 through the inside of the rotary blade 93, and the rotary blade 93 and the crushing rotary shaft 95 are also connected by the rotation of the rotary shaft 92. It is designed to be rotated. The lower end of the crushing rotation shaft 95 extends to the powder storage unit 100.

Next, the powder storage unit 100 and the powder discharge unit 108 will be described with reference to FIGS. 7 to 10. FIG. 7 is a perspective view of the inside of the powder storage unit 100 constituting the powder powder supply container 62, and FIG. 8 is a cross-sectional view of the powder storage unit 100. Further, FIG. 9 shows a bottom lid 110 and a rotating body 130 attached to the lower part of the powder accommodating portion 100, (a) is a view of the bottom lid 110 viewed from directly below, and (b) 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.

As shown in FIGS. 7 and 8, a rotation shaft 102 is provided at the center of the powder storage unit 100. The upper end of the rotary shaft 102 is fitted with the lower end of the crushing rotary shaft 95 of the tablet crushing portion 90 to be rotated together with the rotary blade 94 of the tablet crushing portion 90. When the rotating shaft 102 rotates, the powder is discharged from the powder accommodating portion 100 as described later.

A bottom lid 110 is provided at the bottom of the powder storage unit 100. The bottom lid 110 is composed of a disk 112 that closes the lower part of the powder storage unit 100. Then, as shown in FIG. 9, 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, around the through hole 114 of the disk 112, four holes 116a to 116d are formed so that the powder contained in the powder accommodating portion 100 may 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 wall 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 wall 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. 8, 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. Silicon rubber that is provided by adhering to the 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 110. It has a third rotating body 138 made of. 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 in the vertical direction 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. 10, and is transferred in the rotation direction by the first to third guide walls 118a to 118c. Is restricted so that it is transferred in 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 118c. 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. 10, 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. 7 and 8, 109 is a guide portion formed inside the powder storage portion 100 and guiding the powder inside the powder storage portion 100 so as to be guided to the holes 116a to 116d.

As described above, according to the first embodiment, when the tablet is housed in the tablet storage container 80 and the motor 63 is rotationally driven, the crushing rotation shaft 92 of the tablet crushing unit 90 is also rotated. As a result, the rotary blade 94 is rotated with respect to the fixed blade 93 constituting the tablet crushing mechanism, so that the tablet is crushed and powder is generated. Then, the generated powder is stored in the powder storage unit 100. The powder contained in the powder accommodating portion 100 is dropped downward through the four holes 116a to 116d formed in the bottom lid 110. The dropped powder is placed on the rotating body 130. Further, by rotating the motor 63, the rotating shaft 102 is also rotated. By rotating the rotation shaft 102, the rotating body 130 is rotated. As a result, the powder on the rotating body 130 is moved in the rotational direction. However, if the spiral guide walls 118a to 118c provided at the lower part of the bottom lid 110 (the back side of the disk 112) restrict the movement in the rotational direction, the powder moves radially on the rotating body 130. Finally, the powder drops from the discharge port 120 of the powder supply container 62.

As a result, the powder discharged downward from the powder supply container 62 is sprinkled on the outer periphery of the distribution disk 20 shown in FIGS. 1 and 2, and is supplied to the drop hopper 51 one by one by the scraping portion 50 and packaged. Ru.

Therefore, the powder is generated only by supplying the tablet to the tablet container, and the generated powder is automatically packaged. Therefore, it is not necessary to generate powder and move the generated powder to the packaging device.

In the first embodiment described above, the crushing mechanism of the tablet crushing unit 90 and the powder discharging mechanism of the powder discharging unit 100 are rotationally driven by a common rotation shaft with a single motor. As a result, the production of powder may be delayed depending on the production rate of powder by the tablet crushing mechanism and the release rate by the powder release mechanism. Further, if the amount of powdered powder produced by the tablet crushing mechanism is not uniform, the amount of powdered powder sprinkled on the distribution disk 20 may not be uniform. This causes a problem that the amount of powder contained in each package is different when the package is divided into individual packages.

In order to solve this, the following modification examples can be considered.
Next, a modification of the powder supply device will be described in detail with reference to FIGS. 11 and 12. FIG. 11 is a cross-sectional view of the powder supply container 162 in which the drive unit is omitted, and FIG. 12 is a perspective view showing the drive unit of the crushing mechanism unit and the powder discharge unit. In FIG. 11, the powder supply container 162 is the unit of the tablet storage unit 180, the tablet crushing unit 190, the powder storage unit 200, and the powder discharge unit 208, as in the first embodiment. The modification differs from the first embodiment mainly in the configuration of the rotating shaft and the driving unit.

That is, a first rotary shaft 192 for rotating the fixed blade 193 constituting the tablet crushing mechanism of the tablet crushing portion 190 and the rotary blade 194 of the rotary blade 194 is provided from the rotary blade 194 to the upper part of the powder supply container 162. There is. The first rotating shaft 192 is hollow. A second rotating shaft 202 is rotatably provided inside the shaft of the first rotating shaft 192 independently of the first rotating shaft 192. The lower end of the second rotating shaft 202 is fixed to the rotating body 230, and the upper end thereof is above the powder supply container 162 and protrudes above the first rotating shaft 192.

Then, as shown in FIG. 12, a crushing portion passive roller 194 is provided on the upper portion of the first rotating shaft 192, and the crushing portion passive roller 194 is attached to the shaft of the crushing motor 197 via the idle roller 195. It is in contact with the crushed portion drive roller 196. Further, a rotating body passive roller 203 is provided on the upper portion of the second rotating shaft 202, and the rotating body passive roller 203 is a rotating body driving roller attached to the shaft of the rotating body motor 205 via an idle roller 204. It is in contact with 206. Each of these rollers may be a magnet type non-contact power transmission mechanism as in the first embodiment, a power transmission mechanism by a gear, or a contact power transmission mechanism by a rubber roller or the like. Can serve the purpose. Reference numeral 162 indicates the upper part of the powdered medicine container.

Then, in supplying the powder, before the powder is discharged, the crushing motor 197 is driven to rotate the first rotary shaft 192, and the rotary blade 93 of the tablet crushing portion 90 is rotated to rotate the tablet. The tablets contained in the container 80 are crushed to generate powder. When the generated powder is accumulated in the powder accommodating portion 100 to some extent, the rotating body motor 205 is rotated to rotationally drive the second rotating shaft 202. As a result, the rotating body 130 is rotated to release the powder contained in the powder accommodating portion 100. The crushing of the tablet may be performed between the powder releases or during the powder release. As described above, by performing the crushing of the tablet and the release of the powder in an independent drive system by different axes, the powder in the powder accommodating portion is not insufficient. Therefore, the amount of powdered medicine to be sprinkled on the distribution disk does not become uneven.

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. As described at the beginning, when it is not necessary to measure the weight of the powder, the weighing device 10 may not be necessary.

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 on 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 into the drop 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. 2019-20281.

Here, when the weighing device 10 is provided under the distribution disk 20, the packing paper 57 containing 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 just below the distribution disk 20 and stored between the folded papers 57. The packing paper 57 containing the powder is sealed one by one in the packing device 70, is transported diagonally in the lower right direction in the figure, passes under the weighing device 10, and is collected in the packing 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 up 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 simplified and described in FIG. 2, it is actually configured as shown in FIG. 20.

FIG. 16 is a block diagram of a 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 of the device 60 and, if necessary, the weighing unit 10 are connected to each other.

Generally, when prescribing tablets, the number of tablets is determined by the number of tablets. Therefore, the number of tablets to be powdered is determined even when the tablets are powdered and packaged. Therefore, the tablets for one prescription are counted in advance, all of them are put into the tablet container, and the tablets are powdered and packaged.

Hereinafter, the operation will be described with reference to the flowchart of FIG. In FIG. 17, all the tablets to be prescribed based on the prescription are put into the tablet storage unit 80 (ST11). After that, the disk distribution control unit 340 drives the motor 32 of the rotation drive unit 30 to rotate the distribution disk 20 (ST12), and the tablet to the distribution disk 20 is crushed into powder (hereinafter referred to as powder). Ready for supply. Then, by rotationally driving the drive motor 63 of the powder supply device 60 (ST13), the powder is gradually dropped from the powder storage container 62 onto the distribution disk 20 while crushing the tablets into powder. 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. Then, based on the measured weight, the disk distribution control unit 340 (control means) determines whether or not there is a change in weight (ST14).

While there is a weight change in ST14, the tablets are powdered and the powder is released. When all the tablets contained in the tablet storage unit 80 are crushed and the crushed powder is lost in the powder storage unit 100, the powder is not released. In the disk distribution control unit 340, when the release of the powder is interrupted and the change in the measured weight by the weighing unit 10 disappears for a predetermined time, for example, 3 seconds, it is determined that the powder is no longer supplied (N of ST14), and all the powders are distributed. It is judged that the powdering of the tablet and the release of the powder have been completed (detection means). Then, the powder supply motor 63 is stopped and the disk motor 30 is stopped (ST15). After that, assuming that the distribution of the powder is completed, the powder is scraped out from the distribution disk 20 (ST16), and packaging is performed by the packaging device 70.

In the above example, it is assumed that the powder is no longer supplied based on the change in the measured weight by the weighing device 10, but FIG. 1 and FIG. As shown in 2, a transmission optical sensor 64 (falling powder detecting means) may be provided to detect powder falling from the powder supply device 60, and the drop may be detected when the drop is interrupted for a predetermined time.

In the explanation so far, the number of tablets to be prescribed is counted and put into the tablet storage unit, but as a modification, a method of prescribing by specifying the weight when the tablets are powdered instead of the number of tablets is also available. Conceivable. The movement of the disk distribution unit in such a case will be described with reference to the flowchart of FIG. When the powder packaging operation is started, the overall control unit 310 acquires the type of tablet to be prescribed and the weight information of the tablet for one prescription from the prescription system 400 (ST21). The overall control unit 310 outputs the acquired tablet weight information 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 (ST22), and the tablet to the distribution disk 20 is crushed into powder (hereinafter referred to as powder). Ready for supply. 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 (ST23). 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.

Then, by rotationally driving the drive motor 63 of the powder supply device 60 (ST24), the powder is gradually dropped from the powder storage container 62 onto the distribution disk 20 while crushing the tablets into powder. 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 (ST25).

Then, while supplying the powder, it is determined whether or not the measured weight of the powder reaches the weight of one prescription (ST26), 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 amount is reached, the drive of the drive motor 63 of the powder supply device 60 is stopped, and the motor 32 of the rotary drive unit 30 is stopped (ST27). 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 (ST28). 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 obtained by crushing the tablet can be discharged little by little from the powder storage container 62 to the distribution disk 20, and the mechanism is simple.

(Second embodiment)
In the first embodiment, the weighing device 10 is provided in the disk distribution section to measure the weight of the distribution disk section. 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 packing papers, the falling hopper receives the powders directly under the distribution disk, and the powders are stored in the packing papers 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 the two sets of distribution disks one packet at a time is received by a single drop hopper provided between the two sets of distribution disks. The packing paper is transported 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.

19 and 20 show a second embodiment, FIG. 19 shows a plan view, and FIG. 20 shows a front view. In FIGS. 19 and 20, 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, the wrapping device 70 is such that the horizontal transport wrapping device 70 having the roll R around which the folded paper 57 is wrapped is attached 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 falling hopper 51. Is inserted between the packing papers 57, and powder is stored between the packing papers 57 from the falling hopper 51. The packing paper 57 containing the powder is further transported diagonally downward along the packing paper transport path 71, and is heat-sealed one by one 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 a 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 the transport path configured downward, the weight of the powder 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 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.

10 ... Weighing unit 20 ... Distribution disk 50 ... Scraping unit 51 ... Drop hopper 60 ... Powder supply device 62, 162 ... Powder storage container 63 ... Powder supply motor 64 ...・ ・ Transmission optical sensor (drop powder detection means)
70 ... Packaging device 80 ... Tablet storage unit 90 ... Tablet crushing unit 93, 193 ... Fixed blade 94, 194 ... Rotary blade 100 ... Powder storage unit 102 ... Rotating shaft 110 ... Bottom lid 112 ... Disk 114 ... Through holes 116a-116d ... Holes 118a ... First guide wall 118b ... Second guide wall 118c ... Third guide Wall 130 ... Rotating body 192 ... First rotating shaft 197 ... Crushing motor 202 ... Second rotating shaft 205 ... Rotating body motor 340 ... Disk distribution control unit (control) means)
R ... Weighing paper roll

Claims (11)

A tablet storage unit that stores tablets inside,
A tablet crushing unit provided at the lower part of the tablet storage unit to crush the tablets contained in the tablet storage unit to generate powder, and a tablet crushing unit.
A powder storage unit provided below the tablet crushing unit and accommodating the powder generated in the tablet crushing unit, and a powder storage unit.
A powder release unit that releases powder contained in the powder storage unit little by little, and a powder release unit.
Powder supply device with. The tablet crushing portion has a rotating crushing mechanism and has a rotating crushing mechanism.
The powder discharge unit is provided below the powder storage unit and has a rotating powder discharge mechanism.
The crushing mechanism and the powder release mechanism have the same center of rotation.
The powder supply device according to claim 1. The crushing mechanism of the tablet crushing portion and the powder releasing mechanism of the powder releasing portion are rotated by the same axis.
The powder supply device according to claim 2. The crushing mechanism of the tablet crushing portion and the powder releasing mechanism of the powder releasing portion are independently rotated by different axes having the same rotation center.
The powder supply device according to claim 2. The driving source of the crushing mechanism of the tablet crushing portion and the driving source of the powder discharging mechanism of the powder discharging portion are different driving sources.
The powder supply device according to claim 4. The tablet accommodating portion, the tablet crushing portion, and the powder accumulator accommodating portion are formed of a cylindrical container having a common center.
The powder release unit is provided below the powder storage unit.
The powder supply device according to any one of claims 1 to 5. The powder supply device according to any one of claims 1 to 6.
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 that rotationally drives the distribution disk,
A packaging device that discharges and packages powders one by one from the distribution disk, and
Powder packaging device with. A detection means for detecting that powder is no longer supplied from the powder supply device, and
When it is detected that the powder is no longer supplied by the detection means, the control means for starting the discharge of the powder from the distribution disk by the packaging device and the control means.
7. The powder packaging device according to claim 7. Further, there is a weighing unit provided below the rotation drive unit, which measures 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. death,
The detection means detects that powder is no longer supplied from the powder supply device when the change in weight measured by the weighing unit disappears.
The powder packaging device according to claim 8. The powder supply device is not subject to weight measurement of the weighing unit.
The powder packaging device according to claim 9. The detecting means has a falling powder detecting means for detecting powder falling from the powder supplying device, and when the falling powder detecting means does not detect the powder for a predetermined time, the powder is not supplied from the powder supplying device. Detect that
The powder packaging device according to claim 8.

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