JP7575779B2 - Packaging Equipment - Google Patents

Description

The present invention relates to a packaging device.

When dividing powdered medicine into packets, the pharmacist may place the powdered medicine on a flat plate and smooth it out with a spatula or similar tool before dropping it into the dividing machine. In this case, because the powdered medicine is manually smoothed out on the plate, the amount of powdered medicine per packet is only an approximate amount, and there is some variation. In addition, because the powdered medicine is manually guided before dropping, it scatters and contaminates the area around the dividing machine, and there is also the risk of contamination of the packaged contents (the inclusion of foreign matter).

In some cases, a vibrating feeder is used to drop the powdered medicine into the divider. For example, Patent Document 1 describes a medicine feeder in which a medicine container that has been detached from the main unit device is placed on the main unit device, a medicine moving member that is partly or entirely within the medicine storage unit of the medicine container or in a portion that communicates with the medicine storage unit is operated to move the medicine stored in the medicine storage unit to the medicine discharge unit, the medicine is discharged from the medicine discharge unit, and the weight of the medicine discharged is measured by a weight measuring means based on the decrease in the detection value.

Patent No. 6610947

However, when the powdered medicine is a mixture, the medicine feeder described in Patent Document 1 may separate the components of the powdered medicine according to their respective specific gravities depending on the frequency of the vibrating feeder.

In addition, the drug feeder described in Patent Document 1 has a weight measuring means that detects the weight of the platform and drug container before and after the drug is added. This drug feeder then identifies the weight of the drug added to the vibrating feeder by the weight reduction value before and after the above-mentioned addition. However, this reduction value is not the weight of the drug itself that was added.

One of the objectives of the present invention is to provide a packaging device that measures the amount of medicine to be enclosed.

The packaging device of claim 1 of the present invention has a container that contains medicine and a discharge member that discharges the medicine to the outside, a reservoir that stores the medicine discharged by the discharge member, a first measuring device that measures the amount of the medicine stored in the container, a control device that causes the discharge member to discharge the medicine based on the measured amount of the medicine, and an enclosing device that seals the medicine in a bag when the amount of the medicine measured by the first measuring device reaches a predetermined amount , and has a second measuring device that measures the weight of the container before and after discharge and measures the amount of the medicine based on the difference between the measured weights, and the control device causes the discharge member to discharge the medicine at a speed corresponding to the ratio of the amount of the medicine measured by the second measuring device to the predetermined amount .

The packaging device according to claim 2 of the present invention is a packaging device according to the aspect of claim 1, in which the reservoir discharges the stored medicine when the measured amount of the medicine reaches the predetermined amount, and the sealing device seals the medicine discharged from the reservoir into the bag.

The packaging device according to claim 3 of the present invention is the packaging device according to claim 2, in which the reservoir opens a valve at the bottom and drops the stored medicine when the measured amount of the medicine reaches the predetermined amount, thereby discharging the medicine.

The packaging device according to claim 4 of the present invention is a packaging device according to any one of claims 1 to 3, in which the first measuring device measures the amount of the medicine by subtracting the empty weight of the reservoir from the weight of the reservoir.

The packaging device of claim 5 of the present invention is a packaging device in an embodiment described in any one of claims 1 to 4 , wherein the discharge member has a shaft and blades arranged in a spiral shape around the shaft, and as the shaft is rotated by the control device, the blades are a screw that discharges the medicine from an discharge outlet provided at the bottom of the container, and the spacing between the blades is shorter on the side closer to the discharge outlet than on the side farther from the discharge outlet.

A sixth aspect of the present invention relates to a packaging device according to any one of the first to fifth aspects, wherein the control device causes the discharge member to discharge the medicine by magnetic force.

The packaging device of claim 7 of the present invention is a packaging device in an embodiment described in any one of claims 1 to 6 , wherein the sealing device has a conveying device that conveys a film, and a sealing device that fuses the conveyed films together to form a bag having an opening, and fuses the opening to seal the bag after the drug enters the bag through the opening.

According to the present invention, it is possible to measure the amount of drug itself to be encapsulated.

FIG. 2 is a schematic diagram showing an example of the overall configuration of a packaging device 9. FIG. 2 is a diagram showing an example of the configuration of the container 1. 3A and 3B are diagrams showing an example of the configuration of a discharge member 11. FIG. 2 is a diagram showing an example of the configuration of a reservoir 2 in a state in which a drug is stored. FIG. 13 is a diagram showing an example of the configuration of the reservoir 2 in a state in which the drug has been discharged. FIG. 2 is a diagram showing an example of the configuration of an enclosure device 5. 1 is a diagram showing a cross section of film F intersecting with the traveling direction. 4A to 4C are diagrams for explaining how a bag is formed from film F.

<Overall configuration of packaging device>
Fig. 1 is a schematic diagram showing an example of the overall configuration of a packaging device 9. The packaging device 9 has a container 1, a reservoir 2, a first measuring device 3, a control device 4, and an enclosing device 5. The packaging device 9 shown in Fig. 1 also has a second measuring device 6.

The container 1 is a vessel that holds a medicine, and holds a discharge member 11 at the bottom of the space in which the medicine is held. This discharge member 11 is a member that discharges the medicine held in the container 1 to the outside. In other words, the container 1 is an example of a container that holds a medicine and a discharge member that discharges the medicine to the outside. The discharged medicine is supplied to the reservoir 2.

The reservoir 2 is a container that temporarily stores the medicine discharged from the container 1 by the discharge member 11. In other words, the reservoir 2 is an example of a reservoir that stores the medicine discharged by the discharge member.

The first measuring device 3 is a measuring device that measures the amount of drug stored in the reservoir 2, and is, for example, a load cell of various types, such as a strain gauge type, a spring type, a piezoelectric element type, a magnetostrictive type, a capacitance type, a gyro type, etc. This first measuring device 3 is an example of a first measuring device that measures the amount of drug stored in the reservoir.

The control device 4 is a device that causes the delivery member 11 to deliver the drug based on the measured amount of drug.

The sealing device 5 is a device that seals the medicine into a bag when the amount of medicine measured by the first measuring device 3 reaches a predetermined amount.

The second measuring device 6 shown in FIG. 1 is a measuring device, for example a load cell, that supports the container 1 together with the contained drug and the discharge member 11 and measures their weight. This second measuring device 6 measures the weight of the container 1 before and after the drug is discharged by the discharge member 11, and measures the amount of drug discharged from the difference between the measured weights.

The control device 4 shown in FIG. 1 controls the drug delivery speed to decrease when the weight difference (hereinafter also referred to as the reduction amount) measured by the second measuring device 6 before and after the drug is delivered becomes 80% or more of a target predetermined amount. In other words, this control device 4 is an example of a control device that causes the delivery member to deliver the drug at a speed according to the ratio of the amount of drug measured by the second measuring device to the predetermined amount. In this way, the control device 4 can bring the amount of drug delivered by the delivery member 11 closer to the above-mentioned predetermined amount.

<Container configuration>
Fig. 2 is a diagram showing an example of the configuration of the container 1. The container 1 shown in Fig. 2 has an inlet 10, an outlet member 11, and an outlet 12. The inlet 10 is an opening provided at the top of the container 1, and receives a medicine that is input along the arrow D1 shown in Fig. 2. The medicine received from the inlet 10 is stored inside the container 1.

The discharge member 11 is disposed at the bottom of the container 1 and moves the surrounding medicine to discharge it from the discharge port 12. The area Ro shown in FIG. 2 is the area where the discharge member 11 is installed, which is closer to the discharge port 12.

The discharge member 11 shown in FIG. 2 is driven by magnetic force generated by an electromagnet or the like provided in the control device 4 without coming into contact with the control device 4.

The discharge port 12 is a downward opening for discharging the medicine to the outside by the action of the discharge member 11. The medicine falls and is discharged from the discharge port 12 to the outside of the container 1 along the arrow D2 shown in FIG. 2.

The second measuring device 6 shown in FIG. 2 measures the weight of the container 1. Note that in the case shown in FIG. 2, the control device 4 and the container 1 are not in contact with each other, so the second measuring device 6 is not subjected to the load exerted by the control device 4.

<Configuration of Discharge Member>
3 is a diagram showing an example of the configuration of the discharge member 11. The discharge member 11 shown in FIG.

The shaft 110 is installed at the bottom of the container 1, either approximately horizontally or tilted downward as it approaches the discharge port 12, and is supported at both ends by bearings, for example.

At least one of the ends of the shaft 110 is fitted with a magnetic body or the like that receives the magnetic force generated by the control device 4.

The blades 111 are spirally arranged around the shaft 110. When the shaft 110 rotates, the blades 111 push the surrounding medicine toward the discharge port 12, moving it along the arrow D3 shown in FIG. 3.

The control device 4 rotates a magnetic field generated by an electromagnet or the like to rotate a shaft 110 having a magnetic body or the like, thereby driving the discharge member 11. As a result, the blades 111 of the discharge member 11 discharge the surrounding medicine contained in the bottom of the container 1 from the discharge port 12. In other words, this control device 4 is an example of a control device that causes the discharge member to discharge the medicine by magnetic force.

In other words, this discharge member 11 has a shaft and blades arranged in a spiral shape around the shaft, and is an example of a discharge member that is a screw whose blades discharge the medicine from a discharge port provided at the bottom of the container as the shaft is rotated by the control device.

The spacing Pt between the blades 111 around the shaft 110 along the arrow D3 is shorter for the blades 111 in the region Ro, which is closer to the discharge port 12, in the discharge member 11 shown in FIG. 3 than for the other regions, i.e., the sides farther from the discharge port 12. In other words, in this discharge member 11, the spacing between the blades is shorter on the side closer to the discharge port than on the side farther from the discharge port.

When this configuration is adopted, the closer the discharge member 11 is to the discharge port 12, the shorter the interval Pt is, so the amount of drug discharged during one rotation of the shaft 110 is smaller than when the interval Pt is longer. This has the effect of making it easier to adjust the amount of drug discharged from the discharge port 12.

In addition, since the interval Pt is longer on the side farther from the discharge port 12 than on the side closer to the discharge port 12, the speed at which the medicine is moved or stirred is improved and the medicine is less likely to be compacted and solidified, compared to when the interval Pt is common to the discharge port 12.

<Storage vessel configuration>
Fig. 4 is a diagram showing an example of the configuration of the reservoir 2 in a state where a medicine is stored, and Fig. 5 is a diagram showing an example of the configuration of the reservoir 2 in a state where the medicine has been discharged.

As shown in FIG. 4, the reservoir 2 has an inlet 20, a valve 21, an outlet 22, and an opening/closing cylinder 23. The inlet 20 is an opening provided at the top of the reservoir 2. This inlet 20 is located directly below the discharge outlet 12 of the container 1. Therefore, the medicine discharged from the discharge outlet 12 falls along the arrow D4 shown in FIG. 4 and is stored in the reservoir 2.

The valve 21 is also called an opening/closing damper or shutter, and is movable by an opening/closing cylinder 23 according to the amount of drug stored in the reservoir 2. The discharge port 22 is an opening provided at the bottom of the reservoir 2. When the valve 21 is in the state shown in FIG. 4, it is blocking the discharge port 22, so the drug does not fall downward from the discharge port 22 and is stored inside the reservoir 2.

The valve 21 has a support shaft 210 and an elongated hole 211. The support shaft 210 is an axis that supports the main body of the valve 21 so that it can rotate over a predetermined range of angles. The elongated hole 211 is a hole provided in the main body of the valve 21 to engage with the opening/closing cylinder 23.

The opening/closing cylinder 23 is a rod-shaped member that expands and contracts according to the measurement result of the first measuring device 3. The opening/closing cylinder 23 shown in FIG. 4 is, for example, a solenoid, and has a tube portion 231, a cylindrical portion 232, and a pin 230.

The cylindrical portion 231 has, for example, a coil (not shown) that generates a magnetic field. The cylindrical portion 232 is a plunger that is attracted to the inside of the coil by the magnetic field generated by the coil of the cylindrical portion 231.

The pin 230 is attached to the end of the cylindrical portion 232 opposite the tube portion 231. This pin 230 is a clasp or the like that is passed through the long hole 211 of the valve 21 described above, and transmits force to the main body of the valve 21 while moving inside the long hole 211 in response to the movement of the pin 230 itself.

The first measuring device 3 is a measuring device that measures the total weight of the reservoir 2, including the drug stored inside.

The empty weight of the reservoir 2 is the weight of the reservoir 2 when there is nothing inside. The first measuring device 3 measures the weight of the drug stored inside the reservoir 2 by subtracting this predetermined empty weight of the reservoir 2 from the weight of the reservoir 2 containing the measured drug. In other words, the first measuring device 3 is an example of a first measuring device that measures the amount of drug stored in the reservoir by subtracting the empty weight of the reservoir from the weight of the reservoir.

The first measuring device 3 drives the opening/closing cylinder 23 when the measured weight of the drug reaches a predetermined amount determined to be sealed in a single bag. At this time, a magnetic field is generated in the coil of the cylindrical portion 231 of the opening/closing cylinder 23, and the cylindrical portion 232 is housed in the cylindrical portion 231, so that the overall length of the opening/closing cylinder 23 is reduced. As a result, the pin 230 approaches the cylindrical portion 231, and the valve 21 rotates around the support shaft 210.

When the valve 21 rotates around the support shaft 210 along the arrow Do shown in FIG. 5, the valve 21 moves away from the outlet 22. As a result, the outlet 22 opens downward, and the drug stored in the reservoir 2 falls downward from the outlet 22 along the arrow D5 shown in FIG. 5 and is discharged from the reservoir 2. In other words, this reservoir 2 is an example of a reservoir that discharges the stored drug when the amount of the drug measured by the first measuring device reaches a predetermined amount.

This reservoir 2 is also an example of a reservoir that discharges the drug by opening a valve at the bottom and allowing the stored drug to fall when the measured amount of drug reaches a predetermined amount.

<Configuration of Encapsulation Device>
6 is a diagram showing an example of the configuration of the enclosing device 5. The enclosing device 5 shown in FIG. 6 includes a chute 50, a motor 51, a front pulley 52, a synchronous belt 53, a rear pulley 54, a horizontal sealer 55, and a vertical sealer 56.

The chute 50 is a cylindrical member that guides the medicine into the bag so that it does not diffuse as it falls. An opening, the receiving port 500, is provided at the top of the chute 50. This receiving port 500 is located directly below the discharge port 22 of the reservoir 2. An opening, the input port 501, is provided at the bottom of the chute 50. Therefore, the medicine discharged from the discharge port 22 falls along the arrow D6 shown in FIG. 6, passes through the receiving port 500 and the input port 501, and reaches the film F.

The motor 51 is a drive device that rotates a shaft, and a front pulley 52 is attached to this shaft. The front pulley 52 is a pulley consisting of two or more pulleys that rotate due to the shaft of the motor 51, and it clamps and transports the film F.

The synchronous belt 53 is a belt that connects the front pulley 52 and the rear pulley 54, and rotates the rear pulley 54 in synchronization with the rotation of the front pulley 52. The rear pulley 54 is a pulley consisting of two or more pulleys that rotate due to the rotational force transmitted from the synchronous belt 53, and sandwiches and transports the film F.

The film F is clamped between the front pulley 52 and the rear pulley 54 and transported from the rear pulley 54 to the front pulley 52.

That is, the above-mentioned motor 51, front pulley 52, synchronous belt 53, and rear pulley 54 are examples of a conveying device that conveys the film.

The horizontal sealer 55 is a sealer whose longitudinal direction is aligned with the direction in which the film F is transported, and is, for example, an impulse sealer. The vertical sealer 56 is a sealer whose longitudinal direction is aligned with a direction that intersects with the direction in which the film F is transported, and is, for example, an impulse sealer.

Film F is provided with a resin layer that melts when heated and fuses (also called welded or thermally bonded) when pressure is applied so that the two films adhere to each other. Film F is, for example, glassine paper or cellophane coated with a polyethylene film.

Figure 7 shows a cross section of film F that intersects with the traveling direction. Figure 7(a) shows the cross section of film F as seen along the arrow V7a-V7a in Figure 6.

As shown in FIG. 7(a), the film F is folded at the center line Fc so that both the left and right sides Fo face the chute 50 when viewed from the traveling direction. A resin layer of the film F is provided on the inside of this fold.

The position of the film F shown in FIG. 7(a) is before the rear pulley 54 shown in FIG. 6 in the traveling direction (i.e., upstream), and has not passed through the horizontal sealer 55 or the vertical sealer 56. Therefore, the two sides Fo of the film F shown in FIG. 7(a) are separated from each other, forming an opening at the top.

Figure 8 is a diagram for explaining how a bag is formed from film F. Figure 8 shows the horizontal sealer 55 and vertical sealer 56 as viewed from the arrow V8 in Figure 6.

As shown in FIG. 8, the film F is transported along the arrow D8 by a front pulley 52 and a rear pulley 54 that is driven synchronously with the front pulley 52 by a synchronous belt 53. A chute 50 is disposed downstream of the rear pulley 54, and the drug falls toward the film F.

A vertical sealer 56 is disposed downstream of the chute 50. The vertical sealer 56 shown in FIG. 8 has a power supply unit 560. The vertical sealer 56 also has ribbon-shaped heaters disposed along two locations that extend in a direction that intersects with the traveling direction of the film F.

When the power supply unit 560 passes a predetermined current through the heater for a predetermined time, the resin layer of the film F sandwiched between the vertical sealers 56 melts. As a result, the vertical sealers 56 fuse the resin layer of the film F at the two locations described above, so that the drug that falls onto the film F is supported at these locations. Note that a cut line, such as a perforation, may be provided between and along these two locations.

A horizontal sealer 55 is disposed downstream of the vertical sealer 56. The horizontal sealer 55 shown in FIG. 8 has a power supply unit 550. The horizontal sealer 55 also has a ribbon-shaped heater disposed in a position closer to the side edge Fo than the center line Fc along the traveling direction of the film F.

When the power supply unit 550 passes a predetermined current through the heater for a predetermined period of time, the resin layer of the film F sandwiched between the horizontal sealers 55 melts. As a result, the horizontal sealers 55 fuse the resin layer of the film F at the above-mentioned portion of the film F, so that the film F forms a bag that seals the drug inside.

In other words, the horizontal sealer 55 and vertical sealer 56 described above are examples of sealing devices that fuse the transported films together to form a bag with an opening, and then fuse the opening to seal the bag after the medicine enters the bag through the opening.

When the amount of drug measured by the first measuring device 3 reaches a predetermined amount, the sealing device 5 discharges the drug stored in the reservoir 2 and seals the entire amount in a bag. In other words, the sealing device 5 is an example of a sealing device that seals the drug discharged from the reservoir in a bag.

A forward pulley 52 is disposed downstream of the horizontal sealer 55. The forward pulley 52 transports the bag formed by the horizontal sealer 55 and the vertical sealer 56, which seals the medicine, further downstream.

Figure 7(b) shows a cross section of film F viewed along arrow V7b-V7b in Figure 6. The position of film F shown in Figure 7(b) is further in the traveling direction (i.e., downstream) than the front pulley 52 shown in Figure 6, and has passed through horizontal sealer 55 and vertical sealer 56. Therefore, film F shown in Figure 7(b) is heated and pressurized by horizontal sealer 55, and adhesive portions Ff are fused together. As a result, two side edges Fo are in close contact with each other, and a space that seals in the medicine is created inside the folded film F. In other words, film F shown in Figure 7(b) forms a bag that seals in the medicine.

The term "sealed" here has the same meaning as defined in Article 13 of the Measurement Act. In other words, this sealing refers to putting a product into a container or wrapping it so that the amount of the physical state cannot be increased or decreased unless the container or wrapping or the sealing paper attached to it is discarded.

By the above operation, the packaging device 9 temporarily stores the medicine transported from the container 1 by the discharge member 11 in the container 2, and when the weight of the stored medicine reaches a predetermined amount, the valve 21 is opened and the medicine is sealed in a bag. Therefore, the packaging device 9 does not need to determine the weight of the medicine based on the difference in the weight of the container measured before and after sealing.

<Modification>
The embodiment has been described above, but the contents of this embodiment may be modified as follows. In addition, the following modifications may be combined.

＜1＞
In the above-described embodiment, the amount of drug stored in the reservoir 2 is measured by the first measuring device 3, and when the amount reaches a predetermined amount, the drug is discharged to the outside, but the stored drug may be sealed in a bag in the reservoir 2 and removed together with the bag. In this case, the sealing device 5 may be integrated with the reservoir 2. In this case, the first measuring device 3 may measure the amount of drug stored in the bag placed in the reservoir 2 by subtracting the sum of the empty weight of the reservoir and the empty weight of the bag from the weight of the reservoir 2.

In other words, the sealing device 5 may be a sealing device that seals the drug in a bag when the amount of the drug stored in the reservoir and measured by the first measuring device reaches a predetermined amount.

＜2＞
In the above-described embodiment, the reservoir 2 has the valve 21 at the bottom, but may not have the valve 21. For example, the reservoir 2 may be rotated so that the receiving port 20 faces downward when the amount of the stored drug measured by the first measuring device 3 reaches a predetermined amount. In this case, the drug stored in the reservoir 2 is discharged from the receiving port 20.

＜3＞
In the above-described embodiment, the control device 4 controls to reduce the speed of drug delivery when the weight loss measured by the second measuring device 6 before and after drug delivery becomes 80% or more of a predetermined amount, but other controls may be performed. For example, the control device 4 may control to reduce the speed of drug delivery when the weight of the drug stored in the reservoir 2 measured by the first measuring device 3 becomes equal to or more than a predetermined ratio to the predetermined amount. The control device 4 may also control the speed of drug delivery using a function in which the ratio of the weight of the drug measured by the first measuring device 3 to the predetermined amount is an independent variable.

In other words, the control device 4 in this modified example is an example of a control device that causes the delivery member to deliver the drug at a speed that corresponds to the ratio of the amount of drug measured by the first measuring device to a predetermined amount.

＜4＞
In the above-described embodiment, the control device 4 causes the discharge member 11 to discharge the drug by magnetic force without contacting the discharge member 11, but the control device 4 may have a power transmission mechanism that transmits power by contacting the discharge member 11. In short, the control device 4 does not need to use magnetic force as long as it is a control device that causes the discharge member to discharge the drug based on the measured amount of the drug.

For example, the end of the shaft 110 of the discharge member 11 may extend from the housing of the container 1 to the control device 4. In this case, the control device 4 may rotatably support the end of the shaft 110 and transmit power from this end to rotate the discharge member 11. In this case, the second measuring device 6 may measure the weight of the container 1 and the control device 4.

＜5＞
In the above-described embodiment, the discharge member 11 is a so-called screw feeder having the shaft 110 and the blades 111, but the mechanism for discharging the medicine is not limited to this. The discharge member 11 may be, for example, a screw without a shaft, a bucket conveyor, or a belt conveyor.

In addition, when the discharge member 11 is a screw, the shape of the blades 111 is not limited to the one described above. For example, the blades 111 may have a uniform spacing Pt between the region Ro and other regions. In addition, the blades 111 may be, for example, a ribbon-shaped screw supported in the region Ro by multiple support rods extending from the shaft 110. In this case, the blades 111 in the region Ro have a gap between them and the shaft 110, so that the drug may flow backward through this gap, thereby reducing the amount of drug discharged.

1...container, 10...receiving port, 11...discharge member, 110...shaft, 111...blade, 12...discharge port, 2...storage vessel, 20...receiving port, 21...valve, 210...support shaft, 211...long hole, 22...discharge port, 23...opening and closing cylinder, 230...pin, 231...tubular portion, 232...cylindrical portion, 3...first measuring device, 4...control device, 5...sealing device, 50...chute, 500...receiving port, 501...feeding port, 51...motor, 52...front pulley, 53...synchronous belt, 54...rear pulley, 55...horizontal sealer, 550...power supply unit, 56...vertical sealer, 560...power supply unit, 6...second measuring device, 9...packaging device.

Claims (7)

A container for containing a medicine and a discharge member for discharging the medicine to the outside;
A reservoir that stores the drug discharged by the discharge member;
a first measuring device for measuring the amount of the drug stored in the reservoir;
A control device that causes the discharge member to discharge the drug based on the measured amount of the drug;
an enclosing device that encloses the medicine in a bag when the amount of the medicine measured by the first measuring device reaches a predetermined amount;
A packaging device having
A second measuring device that measures the weight of the container before and after the container is discharged and measures the amount of the drug based on the difference between the measured weights;
The control device causes the discharge member to discharge the drug at a speed according to a ratio of the amount of the drug measured by the second measuring device to the predetermined amount.
Packaging device . The reservoir discharges the stored drug when the measured amount of the drug reaches the predetermined amount;
The packaging device according to claim 1 , wherein the sealing device seals the medicine discharged from the reservoir into the bag. The packaging device according to claim 2 , wherein the reservoir discharges the medicine by opening a valve provided at a bottom thereof and allowing the stored medicine to fall when the measured amount of the medicine reaches the predetermined amount. The packaging device according to claim 1 , wherein the first measuring device measures the amount of the medicine by subtracting an empty weight of the reservoir from the weight of the reservoir. the discharge member is a screw having a shaft and a blade spirally provided around the shaft, and the blade discharges the medicine from a discharge port provided at the bottom of the container as the shaft is rotated by the control device;
The packaging device according to claim 1 , wherein the spacing between the blades is shorter on a side closer to the outlet than on a side farther from the outlet. The packaging device according to claim 1 , wherein the control device causes the discharge member to discharge the medicine by magnetic force. The encapsulation device comprises:
A conveying device that conveys the film;
The packaging device according to claim 1 , further comprising a sealing device that fuses the transported films together to form the bag having an opening, and fuses the opening to seal the bag after the medicine has entered the bag through the opening.

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