JPH0710106A - Powder packaging apparatus and controlling method for same - Google Patents

Abstract

PURPOSE:To allow time from dropping powder to sealing a packaging bag to be adjusted thereby preventing the powder from being interposed at a sealed portion of the packaging bag and improving efficiency in packaging. CONSTITUTION:When medical powder is dropped into a V-shaped measure 7 with an open/close plate 6 opened, the powder is respectively distributed to the number of medical powder supply holes 21 corresponding the number of packs to be distributed. The respective medical powder supply holes 21 are sequentially moved to above a funnel 3, open/close lids 22 of the supply holes 21 are opened one by one to have the medical powder in the supply hole 21 led inside a two-fold wrapping sheet 44, and the medical powder in the supply holes 21 is sealed in respective packaging bags 44a one by one. At this time in accordance with whether the medicine is granule, powder or fine powder, time from opening the open/close lid 22 of the supply hole 21 to sealing the bag is adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to powders (eg powders).
TECHNICAL FIELD The present invention relates to a powder packaging apparatus for sequentially packaging a plurality of packaging bags and a control method thereof.

[0002]

2. Description of the Related Art As an example of this type of device, there is a device for packaging powdered medicine. In this device, a predetermined amount of powder is dropped into the packaging bag in the process of forming the packaging bag, and the packaging bag is sealed. In packaging the powdered medicine, the powdered medicine is dropped into the packaging bag, and after a certain period of time has passed, the packaging bag is sealed. This is because when the powdered medicine is dropped, the powdered medicine is scattered in the air, but if the packaging bag is sealed at this time, the powdered medicine is sandwiched between the sealed portions. Therefore, the packaging bag is sealed after the powdered medicine has settled down.

[0003]

By the way, there are various kinds of powders, including fine powder and granules. Among these powders, fine powders are well dispersed in the air, and granules are rarely dispersed in the air. Therefore, when packaging powdered powder, it is necessary to wait a relatively long time from dropping the powder to sealing the packaging bag, and waiting for the powder to settle down. , You can make this time extremely short.

However, in the conventional apparatus, the time from dropping the powdered medicine to sealing the packaging bag is constant, and this time cannot be adjusted. For this reason, if this time is set according to the powder of fine powder, this time becomes long, and wasted time was spent when packaging the powder of granules. Also, if this time is set according to the powdered granules, this time will be shortened, and when the fine powdered powders are packaged, the powdered medicines are sandwiched between the sealing parts of the packaging bag, and there is a sealing failure at the sealing parts. Occurred.

Therefore, an object of the present invention is to provide a powder packaging apparatus and a control method therefor capable of adjusting the time from dropping the powder to sealing the packaging bag.

[0006]

In order to solve the above-mentioned problems, in the powder packaging apparatus according to the present invention, the time setting means for setting the time and the powder after being dropped into the packaging bag being formed. And a control means for matching the period until the packaging bag is sealed with the time set by the time setting means.

Further, in the control method of the powder packaging apparatus according to the present invention, while being formed based on at least one of the type of powder to be packaged and the amount of powder to be packaged in the packaging bag. The time from dropping the powder in a packaging bag to sealing the packaging bag is adjusted.

[0008]

According to the powder packaging apparatus of the present invention, the control means matches the period from dropping the powder into the packaging bag to sealing the packaging bag with the time set by the time setting means. There is. Therefore, when packaging the powder of the fine powder, by setting a relatively long time by the time setting means, it is possible to prevent the powder from being caught in the sealing portion of the packaging bag. On the other hand, when packaging the powder of granules, the packaging efficiency can be improved by setting an extremely short time by the time setting means.

Further, according to the control method of the present invention, if the powder is a fine powder, the time from dropping the powder into the packaging bag to sealing the packaging bag is relatively long, and the powder is fine. If the body is granular, this time is shortened. Further, if the amount of powder packed in the packaging bag is large, this time is lengthened, and if the amount of powder is small, this time is shortened. As a result, it is possible to perform efficient packaging in which the powder is not caught in the sealing portion of the packaging bag.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the powder packaging device according to the present invention. This powder packaging device sequentially packs a certain amount of powdered medicine into a plurality of packaging bags, and includes a powdered medicine hopper 1, a powdered medicine distributing section 2, a funnel 3, and a packaging section 4.

In the powder hopper 1, the support block 5 and the open / close plate 6 form a V-shaped mass 7. End plates 5a are provided at both ends of the support block 5, and an opening / closing plate 6 is provided.
The projecting pieces 6a are connected to both ends of each. Each protrusion 6a of the opening / closing plate 6 is pivotally supported by a shaft 8 outside each end plate 5a of the support block 5, as shown in FIG. The opening / closing plate 6 is rotatable, and this rotation causes the V-shaped mass 7 to move.
The bottom opens and closes.

A partition plate 9 is provided on the V-shaped mass 7. An L-shaped roller support arm 11 is fixed to the upper part of the partition plate 9, and each grooved roller 12 attached to the roller support arm 11 is a pair of rails formed on the back surface of the support block 5. 13 is fitted. As a result, the partition plate 9 becomes the V-shaped mass 7
Can move inside.

The L-shaped roller support arm 11 is connected to the timing belt 14 on the back side thereof as shown in FIG. 3, and the timing belt 14 is bridged between two toothed pulleys 15. A partition plate motor 17 is connected to one of the toothed pulleys 15 via a clutch 16. When the partition plate motor 17 is rotated, the roller support arm 11 moves together with the timing belt 14, and the partition plate 9 moves inside the V-shaped mass 7. Here, a pulse motor is used as the partition plate motor 17, and the position of the partition plate 9 is determined by rotating this motor by an appropriate rotation angle.

On the back surface of the roller support arm 11,
A pair of magnets 18 is arranged. These magnets 18 are displaced along the moving direction of the partition plate 9.

The clutch 16 is provided for manually moving the partition plate 9 by disengaging the clutch 16 when the motor 17 fails.

Next, the powdered medicine distributing section 2 has a plurality of powdered medicine supply holes 21 arranged in parallel at equal intervals, as shown in FIG. Lid 22
Is provided. As shown in FIG.
The guide frame 23 is fixed as shown in FIG. 3, and each grooved roller 24 is axially supported on the guide frame 23, and the rack gear 25 is fixed. These grooved rollers 24 are fitted to a pair of rails 26 fixed to a side wall (not shown), and thereby the powdered medicine dispensing section 2 is movably supported along the rails 26. Further, the rack gear 25 is a pinion gear 28 attached to the rotating shaft of the powder medicine dispensing unit motor 27.
Is in mesh with. Therefore, when the powder medicine distributing unit motor 27 is rotated, the powder medicine distributing unit 2 moves below the powder medicine hopper 1 along each rail 26.

Further, on the guide frame 23, a pair of magnetic sensors 29 are vertically arranged side by side toward the roller support arm 11. These magnetic sensors 29 are located at the height of each magnet 18 on the roller support arm 11 side and are for detecting these magnets 18.

On the other hand, each opening / closing lid 22 of the powdered medicine distributing portion 2 is fixed to each cylindrical ring 32 fitted and inserted in the fixed shaft 31 as shown in FIG. The opening / closing lids 22 are lifted by the respective springs 33 to close the powdered medicine supply holes 21 of the powdered medicine distribution unit 2.

A triangular plate 34 is disposed near the fixed shaft 31 as shown in FIG. 1, and the triangular plate 34 is
It is rotatably supported by a shaft 35. A claw 36 is fixed to the triangular plate 34, and an arm 37 is connected to the triangular plate 34. The arm 37 is supported by a roller 38 so as to be movable in the horizontal direction.
A cam follower 39 at the right end of 7 is a powder medicine supply hole motor 41.
It abuts on a cam 42 attached to the rotating shaft of the. With the rotation of the motor 41, the arm 37 is pushed and moved to the left by the cam 42, the triangular plate 34 is rotated clockwise, and the pawl 36 pushes up the left end of one opening / closing lid 22.
As a result, the right end of the opening / closing lid 22 descends inside the funnel 3 and one powder supply hole 21 is opened.

Next, as shown in FIG. 5, the packaging unit 4 has a pair of heater rollers 43 arranged side by side, and a folded packaging paper 44 is sandwiched between the heater rollers 43. The wrapping paper 44 is folded in two with a triangular band 46 in between and reaches between the heater rollers 43. These heater rollers 43 are connected to a heater roller motor 45 via a transmission mechanism (not shown).
With the rotation of 5, the heater rollers 43 rotate in mutually opposite arrow directions, and the packaging paper 44 between the heater rollers 43 is conveyed.

These heater rollers 43 have a shape in which the periphery of a cylinder is partially shaved, and the edges 43 of the upper and lower flanges are formed.
A and the edge 43b of the flat plate between these collars generate heat. Further, since the heat-sensitive adhesive is applied to the two surfaces of the wrapping paper 44 that are folded in half and face each other, the respective surfaces of the wrapping paper 44 that face each other are partially heated by the edges of the heater rollers 43. Being adhered to each other. Therefore, each half rotation of each heater roller 43 sequentially forms each packaging bag 44a whose periphery is sealed.

Now, in this packaging apparatus, in order to control this apparatus, a control unit 51 and a host computer 52 are further provided as shown in FIG. 6, and the reference of the partition plate 9 which moves in the V-shaped mass 7 is provided. Reference position sensor 5 for detecting the position
3, a powdered medicine distribution unit encoder 54 for detecting the rotational position of the powdered medicine distribution unit motor 27, a powdered medicine supply hole encoder 55 for detecting the rotational position of the powder medicine supply hole motor 41, and the rotational positions of the heater rollers 43. Position sensor 5 for detecting
Also has 6. The control unit 51 detects the detection output of each magnetic sensor 29 (shown in FIG. 1), the detection output of the reference position sensor 53,
Detection output of each encoder 54, 55, rotation position sensor 5
The detection output 6 and the data from the host computer 52 are input, and the packaging device is operated based on the detection output and the data.

By operating the host computer 52, the host computer 5 can be used as a patient's prescription.
The type, total amount, distribution number, etc. of the powdered medicine stored in advance in 2 are read out, and these data are displayed.

In displaying these data, the host computer 52 notifies the control unit 51 of the distribution number of the powder, and in response to this, the control unit 51 operates the partition plate motor 17 to make the V-shaped mass. The partition plate 9 in 7 is moved. At this time, the control unit 51 temporarily moves the partition plate 9 to the central reference position of the V-shaped mass 7 based on the detection output of the reference position sensor 53, and then divides the partition plate 9 from this reference position according to the distribution number of the powdered medicine. The amount of movement of 9 to the target position is obtained, and a drive pulse corresponding to this amount of movement is applied to the partition plate motor 17 to move the partition plate 9 to the target position according to the distribution number of the powdered medicine. For example, if the distribution number of the powdered medicine is "7", the target position of the partition plate 9 in the V-shaped mass 7 is that only the seven powdered medicine supply holes 21 of the powdered medicine distribution unit 2 are arranged side by side in FIG. The distance is a position separated from the inner wall surface of the right end plate 5a of the support block 5.

When the partition plate 9 is moved, the left end of the powdered medicine supply portion 2 follows the partition plate 9. That is, FIG. 7 (a)
Each magnetic sensor 29 on the guide frame 23 side as shown in FIG.
Is sandwiched between the magnets 18 on the roller support arm 11 side, and when the partition plate 9 moves leftward from this state as shown in FIG. It is detected by the sensor 29. At this time, the control unit 51 operates the powder medicine distribution unit motor 27 in response to the detection output of each magnetic sensor 29 to move the powder medicine supply unit 2 to the left. Further, when the partition plate 9 moves to the right as shown in FIG. 7C, the control unit 51 responds to the detection output of each magnetic sensor 29 to operate the powder medicine distributing unit motor 27 to supply the powder medicine. Move part 2 to the right. As a result, the left end of the powdered medicine supply unit 2 coincides with the position of the partition plate 9, and below each space between the partition plate 9 and the right end plate 5a of the support block 5, each powdered medicine supply corresponding to the number of powdered medicines distributed. The holes 21 are lined up.

After this, based on the display of the host computer 52, the designated type of powdered medicine is put into the V-shaped mask by the designated total amount. At this time, the upper surface of the powder in the V-shaped mass 7 is leveled. When the opening / closing plate 6 is opened and the powder in the V-shaped mass 7 is dropped, the powder is distributed to the powder supply holes 21 corresponding to the number of distributions of the powder.

Next, the control unit 51 monitors the detection output of the powder medicine supply hole encoder 55, rotates the powder medicine supply hole motor 41 once, and opens / closes the lid 22 of the powder medicine supply hole 21 just above the funnel 3. Is opened and the powdered medicine in the powdered medicine supply hole 21 is dropped. This powder drops through the funnel 3 and forms a triangular strip 46.
Is guided to the inside of the wrapping paper 44 folded in half on the side of each heater roller 43. Then, the control unit 51 rotates the heater roller motor 45 while monitoring the detection output of the rotation position sensor 56. As a result, the powdered medicine guided to the inside of the packaging paper 44 is sealed in one packaging bag 44a.

Subsequently, the control unit 51 monitors the detection output of the powder medicine distribution unit encoder 54 and rotates the powder medicine distribution unit motor 27 to move the powder medicine distribution unit 2 to the right side, and the next powder medicine. The feed hole 21 is moved right above the funnel 3. Then, the opening / closing lid 22 of the powdered medicine supply hole 21 is opened, the powdered medicine is introduced into the inside of the packaging paper 44 through the funnel 3, and the powdered medicine is sealed in one packaging bag 44a.

Similarly, the powdered medicine supply holes 21 in which the powdered medicines have been dropped are sequentially moved to directly above the funnel 3, and the opening / closing lids 22 of the powdered medicine supply holes 21 are opened one by one to make the powdered medicine supply holes 21. The powdered medicine therein is sealed in each packaging bag 44a one by one.

The process of sealing the powdered medicine in the packaging bag is repeated by the number of the powdered medicine supply holes 21 into which the powdered medicine has been dropped.

By the way, in this embodiment, the host computer 52 sets a waiting time from dropping the powdered medicine on the packaging paper until sealing the packaging paper, and this waiting time together with the distribution number of the powdered medicine is applied to the control section 51. Have been notified. A data table 61 shown in FIG. 8 and a data table 62 shown in FIG. 9 are stored in advance in the host computer 52 for setting the waiting time.

First, the host computer 52 determines whether the powder to be packed is a granule, a powder or a fine powder. For example, if the powder is a fine powder, the data table 61 of FIG. Wait time corresponding to "powder" 1.5
Read out seconds. Further, the host computer 52 divides the total amount of powdered medicine to be packed by the number of distributions to obtain the amount of powdered medicine to be packed in one packaging bag, and calculates the ratio of the amount of powdered medicine to a predetermined standard amount. Ask. This standard amount is a standard for the amount of powdered medicine packed in one packaging bag. Therefore, the ratio of the amount of powdered medicine to the standard amount indicates whether the amount of powdered medicine packed in one packaging bag is large or small. Host computer 52
Has a large amount of this powder, and the ratio of the amount of powder to the standard amount is 1.
If it is 3 or more, the correction coefficient 1.2 corresponding to "1.3 times or more" is read by referring to the data table 62 in FIG. Then, the host computer 52 multiplies the waiting time of 1.5 seconds by the correction coefficient 1.2 to obtain the corrected waiting time of 1.8 seconds, and the waiting time of 1.8 seconds is used as the control unit 51.
To notify.

When the controller 51 is notified of the corrected waiting time of 1.8 seconds, the controller 51 opens the opening / closing lid 22 of the powdered medicine supply hole 21 and then rotates each heater roller 43. Set as the period until start. In this case, after opening the opening / closing cover 22 of the powdered medicine supply hole 21 and dropping the powdered medicine inside the packaging paper 44, after waiting time of 1.8 seconds, each heater roller 43 is rotated half a turn,
This powdered medicine is sealed in the packaging bag 44a. Here, when the powder is dropped, this powder is a fine powder,
Moreover, since the amount of powdered medicine is large, it scatters well in the air, but since the standby time is set to 1.8 seconds, the powdered medicine scattered during this period is calm. Then, after the powdered medicine has settled down, each heater roller 43 is rotated half a turn to make the packaging bag 44a.
Since the powder is sealed, the powdered medicine is not caught in the sealed portion at the edge of the packaging bag 44a.

Further, for example, when the powdered medicine to be packed is a granule, the host computer 52 reads out the waiting time of 0.5 seconds corresponding to "granule" from the data table 61 of FIG. Then, the host computer 52 divides the total amount of powdered medicine by the number of distributions to obtain the amount of powdered medicine packaged in one packaging bag, further obtains the ratio of the amount of powdered medicine to the standard amount, and the correction coefficient corresponding to this ratio. Is read from the data table 62 of FIG. Here, if the amount of powdered medicine packed in one packaging bag is small and the read correction coefficient is 0.8,
The host computer 52 multiplies the correction coefficient 0.8 by the waiting time of 0.5 seconds to obtain the corrected waiting time of 0.4 seconds, and notifies the control section 51 of the corrected waiting time of 0.4 seconds. To do. The control unit 51 controls the opening / closing lid 22 of the powder supply hole 21.
After opening the corrected waiting time of 0.4 seconds, each heater roller 43 is rotated half a turn to seal the powdered medicine in the packaging bag 44a.

In this case, since the powder is granules and the amount of the powder is small, the powder is hardly scattered in the air. For this reason, the packaging bag 44
Even if “a” is sealed, the powdered medicine is not sandwiched between the edges of the packaging bag 44a. Moreover, since the waiting time is extremely short, the powder medicine can be efficiently packaged.

As described above, if the powder is a fine powder or the amount of the powder packed in one packaging bag is large, when the powder falls from the powder supply hole 21, the powder is well scattered in the air. The waiting time is lengthened to wait until the powdered medicine has settled down, and then the packaging bag 44a is sealed.
As a result, the powdered medicine is prevented from being caught in the edge of the packaging bag 44a. Also, if the powder is granules or the amount of powder packed in one packaging bag is small, the powder does not almost scatter even if it falls, so the waiting time should be extremely short and the powder should be packed. You can proceed efficiently.

In the above embodiment, the waiting time is corrected according to the amount of powdered medicine, but this correction is not always necessary, and the waiting time read from the data table 61 in FIG. 8 is not corrected. You can set it. Further, if there is a granular powder that does not correspond to any of fine powder, powder, and granules, the waiting time corresponding to this may be obtained in advance. Furthermore, if the state of scattering of the powder does not depend only on the granularity of the powder and the amount of the powder, and if it depends on the shape and size of the packaging bag, and also on the temperature and humidity, set the standby time accordingly. good.

Further, although the waiting time is obtained and set based on various preset data, the desired waiting time may be set. In this case,
The standby time setting unit 63 as shown in FIG. The standby time setting unit 63 has a rotatable operation dial 63a, and by operating the operation dial 63a to rotate, the standby time corresponding to the rotation angle can be designated. The control unit 51 uses the operation dial 63a.
Read the wait time specified by and set this wait time.

Further, instead of setting the waiting time for stopping the rotation of each heater roller 43, the rotation of each heater roller 43 may be continued without interruption and the rotation speed may be changed. That is, instead of increasing or decreasing the waiting time, the rotation speed of each heater roller 43 is decreased or increased to adjust the time from the drop of the powdered medicine to the sealing of the packaging bag. However, if it is necessary to set the delivery cycle of each powder medicine supply hole 22 of the powder medicine distributor 2 by the powder medicine distributor motor 27 in synchronization with the rotation speed of each heater roller 43, it may be set.

[0041]

As described above, according to the present invention, when the powder is fine powder or the amount of powder packed in one packaging bag is large, the powder is dropped into the packaging bag before The time until the packaging bag is sealed is relatively long, and when the powder is granules and the amount of powder packed in one packaging bag is small, this time is shortened. As a result, it is possible to prevent the powder from being caught in the sealing portion of the packaging bag and cause a sealing failure, and to improve the packaging efficiency.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a powder packaging device according to the present invention.

FIG. 2 is a cross-sectional view showing a V-shaped mass, a powdered medicine distributing section, and a funnel in the apparatus of this embodiment.

FIG. 3 is a view showing a moving mechanism of a partition plate in a V-shaped mass in the apparatus of this embodiment.

FIG. 4 is a cross-sectional view showing a V-shaped mass, a powder dispensing unit, and a funnel in the apparatus of this embodiment.

FIG. 5 is a view showing a packaging section in the apparatus of this embodiment.

FIG. 6 is a diagram showing a control system in the apparatus of this embodiment.

FIG. 7 is a diagram showing a positional relationship between a magnet and a magnetic sensor in the apparatus of this embodiment.

FIG. 8 is a diagram showing a data table in the apparatus of this embodiment.

FIG. 9 is a diagram showing a data table in the apparatus of this embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Powdered medicine hopper 2 Powdered medicine distribution part 3 Funnel 4 Packaging part 5 Support block 6 Opening plate 7 V type mass 9 Partition plate 28 Magnetic sensor 51 Control part 52 Host computer

Claims (6)

[Claims] 1. In a powder packaging apparatus for dropping powder into a packaging bag during the process of forming the packaging bag and sealing the packaging bag, time setting means for setting time, and dropping the powder into the packaging bag. A powder packaging apparatus, comprising: a control unit that matches a period from the time until the packaging bag is sealed with the time set by the time setting unit. 2. The powder packaging device according to claim 1, wherein the time setting means has an input operation section that is operated to instruct a time, and sets the time instructed by the input operation section. 3. The time setting means has a storage unit for storing respective times predetermined for a plurality of types of powder, and the storage unit stores the time corresponding to the type of powder to be packaged. The powder packaging device according to claim 1, wherein the powder packaging device is set by reading from the device. 4. The time setting means obtains and sets a time corresponding to the amount of powder packed in the packaging bag.
The powder packaging device described in. 5. The time setting means has a storage unit that stores each time set in advance according to a plurality of types of powder, and the storage unit stores the time corresponding to the type of powder to be packaged. The powder packaging device according to claim 1, wherein the time read from the storage unit is corrected according to the amount of the powder packed in the packaging bag, and the corrected time is set. 6. A powder packaging apparatus for dropping powder in a packaging bag and sealing the packaging bag in the process of forming the packaging bag, the type of powder to be packaged, and the powder packaged in the packaging bag. A method of controlling a powder packaging device, which adjusts a time from dropping powder into this packaging bag to sealing the packaging bag based on at least one of body weights.