JPH04102526A - Liquid medicine subdivision packing machine - Google Patents

Abstract

PURPOSE:To divide and subdivision-pack a liquid medicine evenly in respective packages, and make cleaning easier by a method wherein the subject subdivision packing machine has a subdivision packing device which heat-seals packs in which a liquid medicine has been injected from a nozzle one by one, and a means which moves the nozzle to the subdivision packing device at the time of subdivision packing, and to a cleaning position at the time of cleaning. CONSTITUTION:When a liquid medicine which is prepared by the prescription of a pharmacist is fed in a hopper 2, a quantity of packs and an amount for one pack, etc., are input, and a liquid medicine subdivision packing machine control device 32 sends a command to a motor controller 9, and a pulse which is enough to feed the liquid medicine for one pack is generated, and a pulse motor 8 is rotated. At this time, by a heating device 28, a division room 98 of which top is open is formed for a package 4. When a specified quantity of the liquid medicine is injected in the division room 98, a rotor 52 stops once, and is made to reverse by a small amount, and the liquid medicine which is located at the leading end of a nozzle 3 is drawn by suction to prevent the liquid medicine from unnecessarily dropping in the division room 98. Sheets 24, 26 are sent by a specified quantity, and the opening at the top of the division room 98 is sealed, and a division room 98 of which top is open is formed next to the division room 98 for the next subdivision packing work.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a liquid medication packaging machine that divides liquid medication into predetermined amounts and stores them in packages.

(Prior Art) Conventionally, various types of devices have been provided that generally divide a medicine into predetermined amounts and supply the divided medicines into a plurality of packages for packaging. In this type of medicine packaging machine, a mass for dividing medicine is disposed below a feeder, and a fixed amount of medicine is supplied from the feeder while rotating the mass.

Then, the drug contained in the first square is divided into the amount that can be accommodated in each package, and is thrown into the packages disposed further below via the chute.

Thereafter, the top surface of the package is sealed and the packaging operation is completed.

However, although the drug packaging machine using the mass with the above configuration is effective for packaging tablets or powdered tablets, it is not suitable for prescribing to patients who have difficulty taking tablets or powdered powder, such as children and the elderly. In some cases, syrup-like solutions are often prepared, but these solutions cannot be packaged.

When dispensing a liquid medication for a patient and placing it in a package, the liquid medication is placed in a cylindrical container and the required amount is pushed out with a piston-like object to inject into the package. For example, water is placed in a container divided into a plurality of compartments, and the water is injected into the packaging corresponding to the liquid medication in each compartment.

(Problem B to be Solved by the Invention) However, in the above-mentioned conventional solution packaging machine, it is not possible to accurately inject the prescribed amount of water into each package.

That is, once the amount of water a patient should take and the number of doses to be taken at one time are determined by a doctor's medical treatment, a pharmacist prepares the medicine according to the prescription. At this time, the preparation is not done for each dose, but the entire amount for the number of doses determined by the doctor is prepared at once, and then it is necessary to divide it into − doses and inject it into each package. be.

In the case where a liquid medication is placed in a cylindrical container and the required amount is pushed out by a piston-shaped device, the amount of extrusion by the piston-shaped device cannot be set accurately, and it is divided into multiple compartments. In the case of liquid medicines that are placed in containers that are separated, the liquid medicines cannot be placed evenly in a plurality of compartments, and the amount of liquid medicine injected into each package differs.

Furthermore, in the case where a liquid medicine is put into a cylindrical container and the required amount is pushed out by a piston-like object, the inside of the cylinder is closed and a cleaning brush or the like is inserted into the cylinder. In addition, in the case where liquid medication is placed in a container divided into a plurality of compartments, the container is divided by partitions, making the structure complicated and difficult to clean.

Therefore, if a different solution is prescribed to a patient and then a different solution is prescribed to another patient, the two solutions may be mixed, making it impossible to make an accurate prescription.

E. The invention solves the above-mentioned problems, makes it possible to equally divide and package the water in each package, and even when cleaning is a container and a different liquid medicine is prescribed, the previous one can be used. It is an object of the present invention to provide a water-splitting packaging machine in which water-splitting and subsequent liquid medicines do not mix.

(Means for Solving the Problems) For this purpose, the liquid medication packaging machine of the present invention includes a hopper to which the mixed liquid medication is dropped and supplied, and a spiral spiral having a circular cross section. A pump consisting of a rotor made of a rod-shaped body, a stator having an oval cross section and a spiral flow path corresponding to the rotor, a nozzle connected to the pump, a pulse motor for driving the pump, and a stator facing the hopper. A cleaning agent supply means provided, a packaging device that heat-seals the solution injected from the nozzle one package at a time, and a means for moving the nozzle to a packaging position when packaging and to a washing position when cleaning. have.

Further, the pulse motor may be provided with means for rotating the pulse motor by a set amount, stopping the pulse motor, and rotating the pulse motor by a small amount in the opposite direction.

(Function) As described above, the present invention comprises a hopper to which a prepared liquid medicine is dropped and supplied, a rotor connected to the discharge port of the hopper and consisting of a spiral rod-shaped body with a circular cross section, and a rotor with an oval cross section. The pump includes a stake having a spiral flow path corresponding to the rotor, a nozzle connected to the pump, and a pulse motor that drives the pump, so that the pump is activated by sending pulse signals to the pulse motor. When you drive the
A rotor rotates within the stator to transport the liquid medication to the nozzle.

In addition, a cleaning agent supplying means disposed facing the hopper, a packaging device that heat-seals the solution injected from the nozzle one package at a time, and a packaging device that heat-seals the liquid medicine injected from the nozzle one by one, and the nozzle is placed at the packaging position during packaging, and the cleaning agent is placed in the packaging position for cleaning. Since it has a means to sometimes move it to the washing position, the nozzle can be moved to the packaging device side during normal packaging work, and during washing, the nozzle can be moved to the washing position and the rotor rotates at high speed. The inside of the pump can be cleaned automatically.

Furthermore, if the pulse motor is rotated by a set amount and then stopped, and has a means for rotating it in the opposite direction by a small amount, it is possible to prevent dripping from the nozzle when the conveyance is stopped.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram of the liquid medication packaging machine of the present invention, FIG. 2 is a sectional view of the liquid medication conveying device of the liquid medication packaging machine of the present invention, and FIG. 3 is the packaging device of the liquid medication packaging machine of the present invention. FIG. 4 is a diagram showing a heat sealing section of the liquid medication packaging machine of the present invention.

In the figure, reference numeral 1 denotes a liquid medication conveying device, which conveys a predetermined amount of the liquid medication supplied into a hopper 2 after preparation, and injects it into each compartment of a package 4 through a nozzle 3. Reference numeral 6 denotes a mono pump, which conveys the water portion sent to the discharge port at the lower end of the hopper 2 to the nozzle 3 in an amount corresponding to the number of revolutions. Therefore, the motor pump 6 is driven by a pulse motor 8, and the rotation angle is given by the number of pulses sent out from a motor controller 9.

The liquid medicine conveying device II is supported by a base 1.1, and the base 11 is supported by a base drive device 12 so as to be rotatable and movable up and down.

Further, 14 is a cleaning agent supply nozzle, which is connected to a cleaning agent supply source and is a cleaning agent supply device such as a switching valve! The cleaning agent is injected into the hopper 2 for a certain period of time or in a certain amount by F15.

In addition, 18 is a packaging device, and the left and right rolls are 20°22
The sheets 24 and 26 supplied from the heating device 28 are heat-sealed. At this time, the control of the heating device 28 and the feeding of the sheets 1-24 and 26 are performed by the packaging device controller 30.
carried out by

Then, the motor controller 9 and the base drive device 1
2. Cleaning agent supply nozzle 5 and packaging device controller 30
is controlled by the liquid medication packaging machine control device 32.

The liquid medication packaging machine control device 32 calculates the rotation angle of the pulse motor 8 by inputting data necessary for packaging work from the input device 34 by the operator, and sends a predetermined number of pulses to the pulse motor 8. . And the base drive device 11
12 is driven to insert the nozzle 3 into the compartment of the package 4, and the liquid medication is injected at this position.

During cleaning, the nozzle 3 is used as a liquid medicine packaging machine'<B device 32.
The base 11 is rotated and moved to a predetermined position, and the detergent supply device 15 supplies the detergent for a predetermined amount of time or time into the hopper 2 .

The liquid medication packaging machine control device 32 also controls the sheet 24°26.
Heat sealing is performed by moving the heating device 28 every time the is moved by a predetermined amount. During that time, a signal is sent to the motor controller 9 to stop the rotation of the Mono pump 6, and when a signal is received from the packaging device controller 30 indicating that the heat sealing work has been completed, the Mono pump 6 is rotated by a predetermined amount again to inject.

As described above, when the injection of the liquid is completed, the monobomb 6 temporarily stops, but at this time, the liquid medication may drip from the tip of the nozzle 3. Therefore, the pulse motor 8 can be rotated in the opposite direction by a small amount.

The input device 34 uses a packet count for counting the amount of one packet to be injected into one compartment, the number of packets, the cumulative number of packets, and a packet count for counting the cumulative number of packets, and for distinguishing between the previous packaging operation and the next packaging operation. Keys are provided for setting the number of empty sachets, washing time, etc. for forming empty sachets.

In FIG. 2, 50 is a stator made of natural rubber, synthetic rubber, synthetic resin, metal, etc., and 52 is a rotor located within the stator 50 and made of a wear-resistant material. The rotor 52 is formed by spirally rotating a rod-shaped member having a circular cross section, while the stator 50 is formed by spirally rotating a flow path having an oval cross section. When the rotor 52 is supported by an eccentric shaft and rotated, the fluid filling the space formed between the two can be transferred from the suction side to the discharge side. In this case, the fluid will not pulsate.

The monopump 6 and the pulse motor 8 are connected by a coupling rondro 0 and a magnetic coupling 61 having universal joints 56 and 58 at both ends, and a drive shaft 63 is rotated in response to a pulse signal sent to the pulse motor 8. When it rotates, the rotation is transmitted to the mono pump 6 via the magnetic coupling 61 and the camplin rotor 0.

Inside the magnetic coupling 61, an inner ring 62 and an outer ring 64 are each rotatably supported with respect to a case 66, and the rotation generated in the inner ring 62 is transmitted to the coupling roller 0. There is.

A driven inner ring magnet 68 is attached to the inner ring 62.
A driving outer ring magnet 70 is fixed to the outer ring 64, and when the driving outer ring magnet 70 rotates, the driven inner ring magnet 68 rotates following the rotation of the driving outer ring magnet 70. Reference numeral 72 denotes a partition wall arranged to prevent liquid leakage to the outside.

In FIG. 3, 20.22 are left and right rolls, on which each sheet 24.26 is wound. The sheet 24.26
are transported by transport rollers 81 and 82, and heated by the heating device 2.
8 and heat sealed.

Reference numeral 84 designates a silicone rubber backing plate disposed on the receiving plate 86 and is biased and supported by a spring 90 against the receiving base 88 . Further, 92 is a heater plate disposed at a position facing the above-mentioned backing plate 84, and when heat sealing is performed, the two come into contact with each other, and the sheet 24, 26 conveyed between them
weld.

In order to form a container for receiving the liquid medication injected from the nozzle 3, the abutting portion 94 between the heater plate 92 and the backing plate 84 is
As shown in Figure 4, it has a "U" shape. C)2
By performing the above-mentioned heat sealing every time a certain amount of 4.26 is fed, a sealed portion 96 shown by a dashed line is welded, and a compartment 98 is formed.

A perforation blade 100 is used to form perforations in the seal portion 96 between each compartment 98, and a cut blade 102 is fixed to a pedestal 88 to cut the package 4 into a predetermined number of packages. You can move forward and backward.

In the liquid medicine packaging machine having the above configuration, when the liquid medicine prepared according to the pharmacist's prescription is supplied into the hopper 2, the number of packages, the amount of one packet, etc. are inputted, and the liquid medicine packaging machine control device 32 controls the motor. A command is sent to the controller 9 to generate enough pulses to supply one packet of liquid medication, and the pulse motor 8 is rotated.

As a result, the rotor 52 of the Mono pump 6 rotates,
A liquid medication corresponding to the amount of rotation is conveyed into the compartment 98 through the nozzle 3. At this time, the nozzle 3 is moved to the packaging device 18 side in advance. Furthermore, the heating device 28 forms a compartment 98 in the package 4 that is open only at the top.

When a set amount of liquid medication is injected into the compartment 98, the rotor 52 is temporarily stopped and rotated in the opposite direction by a small amount. As a result, the liquid medicine located at the tip of the nozzle 3 is sucked, and unnecessary dripping into the compartment 98 is prevented.

Subsequently, the sheets 24 and 26 are fed by a predetermined amount, the upper opening of the compartment 98 is sealed, and the compartment 98 with the upper part open is opened into the compartment 98 for the next packaging operation.
formed adjacent to.

When the formation of the next compartment 98 is completed, a signal is received from the packaging device controller 30, and the solution packaging machine '4Bs?
Il! ! 32 sends a command for the next packaging operation to the motor controller 9, and a predetermined amount of liquid medicine is sent to the mono pump 6 again.
Powered by. In this case, the monopump 6 may be driven after a set time has elapsed using a timer or the like without receiving a signal from the packaging device controller 30.

In this way, when the required number of packages is completed, the liquid medicine packaging machine control device 32 sends a command to the base drive device 12 to raise and rotate the base 11, and move the nozzle 3 to the cleaning position. Moved. Next, the cleaning agent supply device 1
5 is operated to supply cleaning agent into the hopper 2 from the cleaning side supply nozzle 14. Thereafter, the liquid medication packaging machine control device 32 sends a command to the motor controller 9 to rotate the Mono pump 6 at high speed. This high-speed rotation causes the roller 52 to slide and rotate within the stator 50, and the surface within the Mono pump 6 is efficiently cleaned.

The cleaning agent after cleaning is then automatically discharged from the nozzle 3.

Note that the present invention is not limited to the above embodiments,
Various modifications can be made based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

(Effects of the Invention) As described above in detail, according to the present invention, a hopper to which a prepared liquid medicine is dropped and supplied, and a spiral rod-shaped body having a circular cross section, which is connected to a discharge port of the hopper, The pump includes a rotor, a stator having an oval cross section and a spiral flow path corresponding to the rotor, a nozzle connected to the pump, and a pulse motor for driving the pump. When a pulse signal is sent to drive the pump, the rotor rotates within the stator and the liquid medication can be transported to the nozzle.

Therefore, a set amount of water can be accurately and evenly supplied into each compartment by the set number of packages.

In addition, a cleaning sub-supply means disposed facing the hopper, a packaging device that heat-seals the liquid medication injected from the nozzle one package at a time, and a packaging device that heat-seals the liquid medicine injected from the nozzle one by one, and the nozzle is placed in the packaging position at the time of packaging for cleaning. Since it has a means to sometimes move it to the washing position, the nozzle can be moved to the packaging device side during normal packaging work, and during washing, the nozzle can be moved to the washing position and the rotor rotates at high speed. The inside of the pump can be cleaned automatically. Moreover, since both sides of the rotor and stator slide at this time, the entire area inside the pump can be easily cleaned.

Furthermore, if the pulse motor is rotated by a set amount and then stopped, and has a means for rotating it in the opposite direction by a small amount, it is possible to prevent dripping from the nozzle when the conveyance is stopped. Therefore, not only the amount of the package is accurate, but also the surface of the package is not contaminated.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the liquid medication packaging machine of the present invention, FIG. 2 is a sectional view of the liquid medication conveying device of the liquid medication packaging machine of the present invention, and FIG. 3 is the packaging device of the liquid medication packaging machine of the present invention. FIG. 4 is a diagram showing a heat sealing section of the liquid medication packaging machine of the present invention. l...Liquid agent conveyance device, 2...Hopper, 3...Nozzle, 4...Packaging, 6...Mono pump, 8...Pulse motor, 9...Motor controller, 12...・
Base wait, ]5...Cleaning agent supply device, 18...
- Packaging device, 28... Heating device, 30... Packaging device controller, 32... Liquid medication packaging machine control device, 34.
...Input device, 50...Stator, 52...Rotor. Figure 1 Patent applicant Tokyo Shokai Co., Ltd. Agent Patent attorney Makoto Kawai (2 others) Figure 3 Figure

Claims (2)

[Claims] (1) (a) A hopper into which the blended liquid medication is dropped and supplied; (b) a rotor connected to the discharge port of the hopper and consisting of a spiral rod-shaped body with a circular cross section; and a rotor with an oval cross section. (c) a nozzle connected to the pump; (d) a pulse motor for driving the pump; and (e) a pump disposed facing the hopper. (f) a packaging device that heat-seals the solution injected from the nozzle one package at a time; (g) moves the nozzle to a packaging position when packaging and to a washing position when cleaning; A liquid medicine packaging machine characterized by having a means for (2) The liquid medication packaging machine according to claim 1, further comprising means for rotating the pulse motor by a set amount, stopping the pulse motor, and rotating the pulse motor in the opposite direction by a small amount.