JPH0688561B2 - Granule packing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL FIELD OF USE: The present invention is a method of dividing powders such as drugs without using a dividing mass.
The present invention relates to a device for continuously subdividing and packing required amounts.

Conventional technology: For packaging powdered substances such as medicines in small amounts by required amount,
As a method of dividing without using a distribution mass, the total amount of divided particles is distributed and supplied in an annular concave groove provided on the rotary disk in a substantially even manner, and the concave of this rotary disk is used. The rotary plate and the scraping blade are integrated in a direction intersecting the groove, and a part of the rotary plate is fitted into the groove so that the rotary plate separates the groove from the groove. As a method of taking out one package of powder and granules by scraping it into the shout at
Known from the '98 publication. Further, once the required amount of powder or granules is evenly supplied to the rotary distribution table having the annular V-groove, and then the powder or granules received in the annular V-groove of the rotary distribution table is directly attached to the flat surface on the lower side. A method is also known from Japanese Patent Application Laid-Open No. Sho 60-176655, in which the powder particles are dropped on a rotary table, which is cut off by a scooping device that operates intermittently, and dropped into a shout located in the center. Has been.

Problems to be Solved: For the conventionally known rotary type powder and granular material dividing and packaging machine,
In the former one, partitioning is done by a rotating plate, so if the scraping speed is increased to increase the dividing speed, the centrifugal force acting on the rotating plate will cause the powder to scatter, which is hygienic. It is inconvenient. Therefore, it is difficult to adapt to the packing work at high speed.

Also, in the latter one, the powder particles once supplied to the rotary distribution table are moved again to another rotary table for division, and then the operation is divided by the scooping device. If the granules are replaced by another one, cleaning at that time will be troublesome and work efficiency will inevitably decrease. Furthermore, since the dividing operation must be performed intermittently, there is a problem in increasing the working speed.

An object of the present invention is to solve the above-mentioned conventional problems, to increase the dividing processing speed, to eliminate the scattering of the powder and granules, and to perform the rational processing.

Means for Solving the Problems: A packing machine for powder and granules according to the present invention comprises: (a) two rotations which are arranged on the left and right at a predetermined distance from each other and have annular concave grooves for receiving the powder and granules on the upper surface. Table, (b) arranged so as to face the annular groove of each rotary table,
A granular material supply mechanism for supplying a granular material to each annular groove, (c) an annular concave groove that is arranged so as to face each annular concave groove, and that is provided when the granular material is supplied to each annular concave groove And a partition that moves to the partition position for partitioning the granular material on the annular groove when scraping the granular material from each annular groove, and the partition with this partition held at the partition position. A scraping member for scraping a granular material having a scraping member driven to rotate along one side surface of the strip, and (d) arranged at a position below the scraping member for scraping the granular material,
The lower opening portion is provided with a chute that faces the packaging mechanism.

In the present invention, it is preferable that the powdery or granular material supply mechanism is two feeders in which the outlets of the respective feeder chutes are arranged in the rotation direction of each rotary table.

Further, the powdery or granular material supply mechanism may be provided with a feeder chute that is selectively transferred to the annular groove of each rotary table.

Operation: In the packaging machine of the present invention, two rotary tables are arranged on the left and right, and each of them can be driven independently. Therefore, both rotary tables are driven at the same time and each rotary table is driven. The granules received in the granular material receiving annular groove are divided into required amounts and sent to the chute to the packaging mechanism, and in the case of the same kind of granules, it can be processed in a short time.
In addition, if different types of powder to be processed are supplied to both rotary tables and divided and taken out at the same time, the required amount of different powder to the packing mechanism is fed and mixed. It can be packaged. Further, by alternately driving the two rotary tables, one of the rotary tables is driven to perform the operation of dividing and extracting the powder or granular material,
The work speed can be increased by supplying the powder particles for the next division to the annular groove on the other rotary table and switching the operation alternately.

Therefore, when supplying the granular material to the annular groove of each rotary table, if the same granular material is supplied to both, the granular material supply mechanism of the rotary table arranged corresponding to each rotary table. The rotary table is rotated by a predetermined amount from the feeder and supplied to the annular groove. At this time, if the outlet of the feeder chute is arranged in the direction of rotation of the rotary table,
The powder and granules are distributed in a state in which they do not rise and are leveled in the groove. In the case of a system in which one powder feeder is provided with one feeder, the feeder shutter is selectively transferred to the left or right, and the feeder is directed toward either the left or right rotary table by a specified amount. It is supplied to the annular groove on the rotating turntable and evenly distributed. Then, the direction of the feeder short is switched to the annular groove on the other rotary table and supplied. It should be noted that, in a multiple feeder feeder, if the granular material is supplied to the same annular groove, and the supply speed is reduced to an appropriate amount to increase the rotation speed of the rotary table, the granular material for the annular groove will be formed. The accuracy of distribution of can be improved. Of course, it is possible to separately supply the powder granules by distinguishing the feeder shutter of the supply mechanism between the one rotary table and the other rotary table.

Also, in the split take-out operation by the split scraping mechanism after the powder and granules are evenly distributed in the annular groove of each rotary table, the partition that has been retracted when the powder and granules are supplied is rotated to rotate the annular groove. It is inserted into the annular groove, and the powder particles in the rotating groove are stopped, and the scraping piece is rotated separately from the partition, so that a predetermined amount of powder particles are scraped from the annular groove into the shute. So you can change the scraping speed,
For example, when scraping, it can be moved gently and can be reliably divided. Further, since the partition does not rotate during the scraping operation, fine powder does not scatter at the damming portion, and the generation of residual drug can be minimized.

Practical Example: The present invention will be described below with reference to the accompanying drawings.
It is as follows.

FIG. 1 is a partially cutaway plan view of the packaging machine of the present invention, in which two rotary tables 10 on the left and right are provided with annular concave grooves 11 for receiving and dividing the powder and granular material on the outer peripheral side of the upper surface. ,Ten'
Are provided on the machine body frame 1 at required intervals so as to rotate at required speeds. With respect to each of the annular recessed grooves 11, 11 of the left and right rotary tables 10, 10 ', the divided scraping mechanism 20 intersects the rotation trajectory at a predetermined position,
It is arranged with a part thereof inserted. Below the two rotary tables 10 and 10 'at the adjacent positions in the arrangement portion of the split scraping mechanism 20, there is provided a feeding chute 50 connected to a packaging mechanism (not shown). Further, the feeder 42 and the supply hopper 41 as the powder and granular material supply mechanism 40 are provided at the front space position (which is not limited to this in the figure) equidistant from the left and right rotary tables 10, 10 '. And are provided.

2 and 3 are detailed diagrams showing the relationship between the rotary table 10 and the split scraping mechanism 20, and the left and right rotary tables 10 and 10 'and the split scraping mechanism 20 will eventually Since both have the same configuration, one of them will be described.

The rotary table 10 has a through hole 12 in the center, and a guide ring 14 projectingly provided on the inner periphery of the drive ring 13 attached concentrically on the lower side along the periphery of the through hole 12 and a groove engaging with the guide ring 14. A belt 16 is provided on the outer peripheral surface of the drive ring 13 and a pulley 4 which is supported on the machine body frame 1 by a plurality of guide rollers 15 and which is mounted on the output shaft of a drive motor 3 installed on the machine body frame 1. Is wound around and driven (not limited to this, it is also possible to adopt a system in which power is split by one motor to rotate in synchronization). An annular groove 11 provided on the upper surface of the rotary table 10.
Is a shallow groove having an arcuate surface corresponding to the locus circle drawn by the blade edge of the scraping blade 22 of the rotating scraping piece 21 of the split scraping mechanism 20.

The split scraping mechanism 20 is arranged so as to straddle the rotary table 10 from the through hole 12 with its backbone supported by a support body 27 fixed to the machine body frame 1 in the through hole 12 of the rotary table 10. The support arm 28, the scraping piece 21 attached to the rotary shaft 26 supported by the tip of the support arm 28 at the same axis, and the boss 25 'fitted on the rotary shaft 26 via the bearing 25 ". It comprises a partition 25 to be attached, and a power transmission mechanism (described later) for rotationally driving the scraping piece 21 and the partition 25.

The scraping piece 21 includes two scraping blades 22 as shown in the drawing.
However, the scraping piece 21 is provided at a position 180 ° away from the boss 21 'and inclined in the backward direction at an appropriate angle (45 ° with respect to a vertical line passing through the axis) in the same rotation direction, A partition side plate 24 is attached to one side of the partition 25, and the other side is in contact with the partition 25. A cutting edge 24 'is attached to the outer peripheral edge of the partition side plate 24, and the scraping blades 22 are detachably fixed from the side surface of the boss 21' with a pressing piece 24 "so that the scraping blades 22 can be replaced. Has been done.

As shown more concretely in FIG. 4, the partition 25 is composed of a fan-shaped plate, and is stationary in an upward posture while supplying a required amount of the granular material to the annular groove 11, It is located in the annular groove 11 during the split scraping operation, and has a function of damming the granular material in the rotating annular groove 11. In order to perform the above-mentioned operation of the partition 25, the mounting boss 25 'of the partition 25 has a support body formed by, for example, a gear on its outer periphery.
A gear 29 on an output shaft 29 'of a motor 29 attached to the motor 27 and a boss 25' with a gear are wound around a toothed belt 31 to transmit power.

Further, the rotary shaft 26 on which the scraping piece 21 is fixedly supported.
The drive gear includes a gear 32 attached to the rotary shaft 26 and a worm gear 35 'supported by a shaft 36 on a support 27 and meshed with a worm 34 attached to an output shaft 33' of a drive motor 33.
The toothed belt 37 is wound around 35 and the scraping piece 21 is continuously rotated. In addition, not only the toothed belt but also the chain drive and the V belt drive can be adopted in the both-winding drive section. Reference numeral 38 in the figure is an annular groove
11.A cleaning tool of 11, wherein a support arm 38 'including a brush and a blower for suction and having a backbone supported by a support 27,
A cam 39 is provided so that the inside of the annular groove 11 can be cleaned in association with the operation of the partition 25 rotating upward and retracting from the annular groove 11.
A cam lever 38 ″ with a cam follower is associated therewith. 30 ′ is a gear for moving the cleaning tool 38 up and down, and 39 ′ is a driven gear for rotating the cam 39.

As shown in FIG. 1, such a split scraping mechanism 20 is arranged so as to be concentrated at a required position, and when splitting the granular material, the left and right rotary tables 10, 10 'are counterclockwise,
Each of them is related to rotate (not limited to this, both rotary tables 10, 10 'may be rotated in the opposite direction, or both rotary tables 10, 10' may be rotated in different directions. These turntables 10,1
The partition 25 is placed behind each scraping piece 21 with respect to the 0'rotational direction, and is arranged in each annular groove 11 in the same manner as described above. At this time, both scraping pieces 21 are positioned so as to rotate at right angles to the rotation trajectory of each annular groove 11. Further, both split scraping mechanisms 20 are arranged at appropriate distances, and the shoots 50 are arranged so as to straddle between the lower sides of both rotary tables 10 and 10 ′ at the positions facing each other of these split scraping mechanisms 20. It is provided. The chute 50 is positioned so that its lower end opening faces a continuous bag fed into a known continuous bag packaging mechanism (not shown).

The powdered and granular material supply mechanism 40 for the annular groove 11 of the left and right rotary tables 10 and 10 'is installed on the machine body frame 1 so that the hopper 41 and the feeder 42 are both rotary tables 10 and 1.
It is positioned above 0 ', and the end 43 of the feeder 42 is located on the annular groove 11 of the rotary table 10, 10'.
The direction of rotation when the powder or granular material is supplied to the annular groove 11 (the rotary tables 10 and 10 'are rotated in the opposite direction to the normal scraping operation of the powder or granular material to rotate the powder or granular material into the annular groove). It is arranged so as to face (accept in 11). The powdery- or granular-material supply mechanism 40 may be installed at any position as needed.

Since the device of the present invention has such a configuration, at the time of use, a predetermined amount of the granular material to be treated is supplied to the hopper 41 of the granular material supply mechanism 40, and the ring on both the left and right rotary tables 10 and 10 'is rotated. The powder or granular material is sent out from the feeder chute 43 to the groove 11. In this state, the partition 25 of the split scraping mechanism 20 and the scraping blade 22 of the scraping piece 21 move to the fourth
As shown in the figure, it is retracted from the annular groove 11. As described above, the feeder trench 43 supplies the powdery or granular material to the annular groove 11 into which the powdery or granular material is supplied, in the direction of rotation when the powdery or granular material is supplied, and the rotary table 10 ( Ten')
It is possible to level the distribution state of the powdery particles in the annular recessed groove 11 without causing the particles to rise by rotating the blades faster than during the dividing operation.

When the supply of the granular material to the annular groove 11 of each rotary table 10, 10 'is completed, the rotary table 10, 10' is switched to the steady rotation, the split scraping mechanism 20 is operated, and the partition is cut.
By introducing 25 into the annular groove 11, and then rotating the scraping piece 21 at a constant speed, as shown in FIGS. 5 and 6, the powder particles on the rotating annular groove 11 are separated. What is blocked by 25 is scraped off by the scraping blade 22 from the annular groove 11 over the peripheral edge thereof and into the chute 50. At the time of this scraping operation, the scraping piece 21 is provided with the partition side plate 24 on the front side of the scraping blade 22, so that the granular material between the partition side plate 24 and the partition piece 25 is scraped off. Therefore, the ring-shaped groove 1 is formed on both rotary tables 10 and 10 '.
The powders and granules scraped off from 1 are mixed in the chute 50 and supplied from the lower end opening portion 51 into a continuous packaging bag (not shown) located directly below, and are well known by the packaging mechanism. It is packaged as one package by means. Thereafter, the rotary table 10, 10 'is sequentially divided from each annular groove 11 by the scraping amount by the scraping blades 22 and supplied to the packaging bag via the chute 50.

In the division by such an operation, when the entire circumference of the turntables 10 and 10 'is divided into, for example, 90 pieces, the rotation speed of the scraping piece 21 is set so that the scraping pieces 21 are scraped at every rotation angle of 4 °. If it is constant, the rotation speeds of the rotary tables 10 and 10 'may be set as such. In the specific example described above, the scraping piece 21 can be scraped twice while making one rotation. Therefore, if the rotation speed of the scraping piece 21 is kept constant, the rotation table 10 (10 ') is rotated. The speed can be fast. Moreover, since the scraping piece 21 is rotating while holding the partition piece 25 during this dividing operation, unless a large centrifugal force acts on the outer peripheral edge of the partition side plate 24 of the scraping piece 21, the granular material is produced. The target work can be done without being scattered and scattered.

After the division and packing work of the granular material is completed, the partition 25 of the division scraping mechanism 20 and the scraping piece 21 are retracted from the annular groove 11, and the cleaning tool 38 is interlocked with the annular groove 11 in conjunction with this. 11
Take it down and clean it for the next task. The cleaning tool 38 is raised after the cleaning work so as not to interfere.

The operation of supplying the granular material to each annular groove 11 is performed when the two granular material supply mechanisms 40 are used at the same time except when the same granular material is handled, when the above-mentioned supply is switched, the hopper 41, Clean the feeder 42 and chute 43 to avoid mixing of powder. Therefore, when different powders and granules are often handled at the same time, the cleaning work can be omitted by using both powder and granules supply mechanisms 40 separately.

What has been described above, after supplying all the powder particles to the annular concave groove 11 of the left and right rotary tables 10, 10 ',
It is a method of dividing and packing both of them at the same time, but this is operated by dividing and extracting powder particles from only one of the left and right rotary tables 10 or 10 ', and in the meantime, to the other rotary table 10' or 10 side. In the case of the method in which the next powder to be treated is received and alternately divided and wrapped, while operating one rotary table 10 or 10 ', the other rotary table 10' or 10 is operated. By operating the powder and granular material supply mechanism 40 to supply the next powder or granular material to be processed,
It is possible to continuously package a large amount of powder.

With respect to the driving operation of the entire apparatus, the operation of each related driving unit can be selectively set in the control unit so that the driving can be arbitrarily set and driven. Of course, it may be fixed so as to operate under the specified conditions.

The packaging machine of the embodiment described above, each rotary table 10,1
Although the powder and granular material supply mechanism 40 is separately provided for each 0 ', in the following embodiment, one powder and granular material supply mechanism is used by transferring to both rotary tables 10 and 10'. belongs to.

FIG. 7 is a partially cutaway plan view showing an example of a packaging machine in which the powder and granular material supply mechanism 40A is of a transfer-feed type for both left and right rotary tables 10, 10 '. Rotating table 1
Reference numerals 0 and 10 'are provided with an annular groove 11 similar to that of the above-mentioned embodiment on the upper surface. In this embodiment, a shout 50 for delivering the divided granular material to the packaging mechanism is located between both rotary tables 10, 10 '.

The drive mode and the supporting structure of the left and right rotary tables 10, 10 'are as shown in FIG.
The lower surface of 0'is supported by the body frame 1 at the same level by a number of guide rollers or bearings (all not shown), and the ring-shaped gears 2, 2'applied to the lower surface, respectively. The drive gears 5, 6'attached to the output shafts of the drive motors 5, 5'are engaged with each other so that they can be driven independently (not limited to this, the rotary tables 10, 10 ' It is also possible to adopt a system in which the power is split by one motor to rotate in synchronization).

The split scraping mechanism 20A arranged on each of the annular concave grooves 11, 11 of the left and right rotary tables 10, 10 'is the machine frame 1
And is supported by the same axis at the tip of a support frame 28A that is provided so as to project from the central through hole 12 of each rotary table 10, 10 'and straddle over the rotary table 10 or 10'. The scraping piece 21 is attached to the rotary shaft 26, and the partition 25 is attached to the boss 25 ′ fitted on the rotary shaft 26. The motor M mounted on the machine body frame 1 supports the support frame 28A.
Power is transmitted to the rotary shaft 26 and the boss 25 'by a winding transmission (winding drive by a chain, a belt, etc.) inside the shaft (see FIG. 9). The partition 25 is a fan-shaped plate as in the above-mentioned embodiment, and is stationary in an upward posture while supplying a required amount of powder or granular material to each annular recessed groove 11, and each annular recessed portion is used during the split scraping operation of the powder or granular material. It is located in the groove 11 and has a function of damming the granular material in each of the rotating annular concave grooves 11. Therefore, the mounting boss 25 'for the partition 25 is
A clutch (not shown) for reversing and positioning the partition 25 is provided in the power transmission system for the. The scraping piece 21 is the same as that of the above-mentioned embodiment.

Such a split scraping mechanism 20A is operated in the same manner as that of the above-mentioned embodiment to scrape the granular material from the annular recessed grooves 11 of the left and right rotary tables 10 and 10 'by a required amount into the shute 50. Has been done. Both split scraping mechanism 20
Between the A, the baffle plate 45 may be arranged above the shute 50 so that the powder particles that are scraped off by the rotation of the scraping pieces 21 do not jump into the annular concave grooves 11 on the opposite sides. it can.

The powdered and granular material supply mechanism 40A for the annular recessed grooves 11 of the left and right rotary tables 10, 10 'is installed on the machine body frame 1 so that the hopper 41 and the feeder 42 are both rotary tables 10,1.
It is positioned above 0 ', and the end of the chute 43 of the feeder 42 is rotatably supported so as to be transferred to either the left or right annular groove 11, and two sets are provided as a pair (not limited to this). Both the feeders 42 are provided on the supporting portion so that they can be simultaneously rotated by one motor (not shown) (a rotation mechanism is a known mechanism such as an electric motor, a linear reciprocating drive machine (including link motion)). Is used). Incidentally, the feeder 42 may also be of a type in which it can be independently distributed to the left and right annular recessed grooves 11 and supplied. Further, the installation position is also provided at an arbitrary position as needed.

The arrangement relationship between the shout 50, the split scraping mechanism 20A, and the powder / granular material supply mechanism 40A is the same even if they are distributed as shown in FIG. Since the reference numerals in the figure are the same as those described above, the same reference numerals are given.

In the packaging machine of the present invention configured as described above, when used, the hopper 41 of the powder / granular material supply mechanism 40A is supplied with a predetermined amount of the granular material to be treated, and the left and right rotary tables 10, 10 'are rotated.
With respect to the upper annular recessed groove 11, the feeder chute 43 is oriented to either one of the grooves, and the granular material is sent out. At this time, the partition 25 of the split scraping mechanism 20A and the scraping blade 22 of the scraping piece 21 are retracted from the annular groove 11 as in the case of the above-described embodiment. The rotary table 10 (10 ') provided with the annular groove 11 to which the powder and granules are supplied,
It can be rotated faster than during the dividing operation to even out the distribution of the powder and granules. Particularly, by supplying the powdery particles at the same time by the two feeders 32, the powdery particles can be rapidly supplied in an even distribution state.

When using both left and right rotary tables 10, 10 'simultaneously,
When the supply of the powder and granules to one rotary table 10 (10 ') is completed, the other rotary table 10' (10) is rotated,
It is sufficient to change the direction of the feeder chute 43 and supply the granular material to the annular concave groove 11 of the rotary table 10 '(10) in the same manner as described above.

EFFECTS OF THE INVENTION According to the device of the present invention, the operation of dividing the granular material that is evenly supplied on the annular concave groove provided on the rotary table and sending it to the packaging function is performed by the partitioning scraping mechanism. By operating the scraping piece and the scraping piece separately, it is possible to prevent the scattering of powder at the damming part due to the rotation of the partition plate, which was easy to occur with the conventional device, and to suppress the generation of residual chemicals. It is now possible to drive in a favorable condition. Furthermore, since the partition and the scraping blade of the scraping piece can be retracted from the annular groove, cleaning is facilitated and the amount of residual drug is reduced. Further, when disposing the powdery or granular material supply mechanism for the two rotary tables respectively, if the powdery or granular material is supplied by following the rotating direction of the annular groove, the powdery particles are leveled in the groove. It can be supplied in a state that facilitates subsequent operations. In particular, the same medicine (powder or granule) can be continuously packaged by switching between two rotary tables. If the left and right sides are used simultaneously, the packaging speed can be increased, or two kinds of drugs can be mixed and packaged. And so on.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a packaging machine of the present invention, FIG. 2 is a plan view showing an enlarged partial cross section of a main part, and FIG. 3 is III of FIG.
-III view, FIG. 4 is a front view of the main part of the split scraping mechanism,
5 and 6 are views showing the operation mode of the split scraping mechanism, FIG. 7 is a partially cutaway plan view of another example, and FIG. 8 is an exploded view of the main part of the packaging machine shown in FIG. FIG. 9 is a schematic cross-sectional view of a vertical section shown in FIG. 9, FIG. 9 is a cross-sectional view of another example of a main part of the split scraping mechanism, and FIG. 1 …… Machine frame, 2,2 ′ …… Ring gear 3,5,5 ′, 33 …… Drive motor 4 …… Pulley, 10 …… Right side rotary table 10 ′ …… Left side rotary table 11 …… Annular groove , 12 ...... Through hole 13 ...... Drive ring, 14 ...... Guide ring 15 ...... Guide roller, 16 ...... Belt 20, 20A ...... Split scraping mechanism 21 …… Scraping piece, 21 ´ …… Scraping piece Boss 22 …… Scraping blade, 24 …… Partition side plate 25 …… Partition piece, 25 ′ …… Boss 26 …… Rotary shaft, 27 …… Support 28 ... Support arm, 28A …… Support frame 29 …… Motor for rotating the partition 30,32,35 …… Gear, 31,37 …… Toothed belt 34 …… Worm, 35 ′ …… Worm gear 38 …… Cleaning tool, 40 …… Powder / granule supply mechanism 42… … Feeder, 43 …… Feeder chute 50 …… Chute, 51 …… Chute opening 45 …… Baffle plate, 60 …… Packaging mechanism A …… Packaging bag

Claims (3)

[Claims] 1. (a) Two rotary tables, which are arranged on the left and right at a predetermined distance from each other and have annular concave grooves for receiving powder particles on the upper surface, and (b) face the annular concave grooves of each rotary table. Is arranged as
A granular material supply mechanism for supplying a granular material to each annular groove, (c) an annular concave groove that is arranged so as to face each annular concave groove, and that is provided when the granular material is supplied to each annular concave groove And a partition that moves to the partition position for partitioning the granular material on the annular groove when scraping the granular material from each annular groove, and the partition with this partition held at the partition position. A scraping member for scraping a granular material having a scraping member driven to rotate along one side surface of the strip, and (d) arranged at a position below the scraping member for scraping the granular material,
A packing machine for powder and granules, characterized in that a lower opening portion is provided with a chute facing the packaging mechanism. 2. The powdery or granular material according to claim 1, wherein the powdery or granular material supply mechanism is two feeders in which the outlets of the respective feeder chutes are arranged in the rotation direction of the respective rotary tables. Packing machine. 3. The packing machine for powdery or granular material according to claim 1, wherein the powdery or granular material supply mechanism includes a feeder chute that is selectively transferred to an annular groove of each rotary table.