JPS6348482Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention includes a powder feeder, an annular divided mass from which powder is distributed and supplied to a predetermined number of mass groups from the powder feeder, and one mass from each of the annular divided mass. The present invention relates to a powder distributing and packaging machine including a packaging device for packaging discharged powder one package at a time.

[Conventional technology]

Generally, the operations performed by this type of powder distributing and packaging machine include distributing the powder from the powder feeder to a predetermined number of annular divided squares, and discharging the powder one square at a time from the annular divided squares after the distribution work has been completed. This can be broadly divided into packaging work for powders, which are packaged by hand.

[Problem that the invention attempts to solve]

However, with conventional products of this type, it is generally not possible to start distributing the powder to be newly distributed in the next process until the packaging of the powder that has already been distributed in the previous process is completed, and during this time The waiting time is long and the overall work efficiency is extremely low. In addition, in order to perform powder distribution work in the next process to empty squares in the annular divided squares before the powder packaging work in the previous process is completed, it is necessary to move to the circular divided squares that are being moved one pitch at a time for the packaging work. On the other hand, the powder feeder must be moved or reciprocated with high precision, which is practically impossible to achieve unless, for example, the powder feeder is decelerated before switching the reciprocating motion of the powder feeder, and Even if the number of vacant squares in the annular division squares is insufficient to the number of squares to be distributed, some of the distribution work may be performed without waiting until the shortage is resolved as the packaging work progresses. However, it is impossible to achieve such efficiency improvement by detecting only the switching position of the reciprocating motion of the powder feeder, for example.
From these points as well, the conventional method has had the problem that the powder packaging work in the previous step and the powder distribution work in the next step cannot be performed simultaneously.

This invention solves the above-mentioned problems of the conventional method, and allows the packaging of the powder that has already been distributed in the previous process and the distribution of the powder that will be newly distributed in the next process to be carried out simultaneously. The object of the present invention is to provide a powder distribution packaging machine.

[Means for solving problems]

In order to achieve the above object, this invention includes a powder feeder, an annular dividing mass, and a packaging device, and the powder feeder is configured to distribute a predetermined number of particles arbitrarily selected along the annular dividing mass by the operation of a drive device. Powder is distributed and supplied to the mass group while reciprocating, and the annular divided mass is operated by a drive device,
In a powder distributing packaging machine, the packaging device rotates one square at a time in response to the wrapping operation of the packaging device, and the packaging device packages one package of the powder discharged one square at a time by the rotation of the annular divided mass. , a detecting member is provided for sequentially detecting the amount of relative rotation of the powder feeder with respect to the annular divided mass by a relative angle corresponding to at least the pitch between each of the annular divided masses, and the output of this detecting member is transmitted to the powder feeder. The drive device for the powder feeder sequentially counts each square of the annular divided squares based on the output of the detection member, and controls the powder feeder based on the number of counted squares. It is configured to control reciprocating rotation.

[Effect]

This invention adopts the above means, so that the direction of rotation of the powder feeder can be reversed with high precision at any position with respect to the annular divided mass.

〔Example〕

Embodiments of this invention shown in the drawings will be described below.

A collar 40 and a nut 4 are attached to the shaft core 2 of the machine base 1.
an annular divided mass 3 which is tightened and fixed by the annular divided mass 3 and is arranged rotatably around the axis 2; A substrate 4 is provided concentrically and rotatably provided by a bearing 31, and a rotational drive mechanism 5 for driving the substrate 4 is provided between the substrate 4 and the annular divided mass 3. Further, a predetermined number (84 units in the illustrated example) of the annular divided cells 3 are arranged around the entire circumference.
A bottom cover opening/closing mechanism 6 is provided on each bottom surface, allowing the bottom covers to be opened and closed.

The rotary drive mechanism 5 is connected to the substrate 4 by a fixed plate 20.
It has a rotation motor 12 screwed onto the top, a pinion 10 connected to the shaft of the motor 12, and an inner gear 11 provided on the inner peripheral surface of the annular split mass 3, and the rotation of the rotation motor 12 As a result, the pinion 10 rotates, and the inner gear 11 meshes with the pinion 10. Further, a photoelectric, magnetic or mechanical rotational position detection sensor 1 is mounted on one end of the substrate 4.
3 is attached close to the inner gear 11, for example, each of the annular divided masses 3 and each tooth of the inner gear 11 are configured in a positional relationship corresponding to each other, and the rotational drive mechanism 5 and the rotational position detection sensor Reference numeral 13 constitutes a drive device for driving the substrate 4 with respect to the annular divided mass 3.

Further, there is an automatic distribution feeder mechanism 7 on the substrate 4, and the automatic distribution feeder mechanism 7 is provided with a drug outlet 14 and a rotation fulcrum 15 at one end thereof.
It has a mixing tank 16 rotatably installed around the rotation fulcrum 15, a drive transmission mechanism 18 including a tilting motor 17 for rotating the mixing tank 16, sprockets 22, 23, and a chain 24, A supply gutter 26 and a mixing tank 16 suspended from the tip of the outlet 14
It is equipped with a vibration mechanism 19 provided in contact with the lower part.

A powder detection sensor 25 is provided to detect contact with powder when the mixing tank 16 is tilted in the direction of the arrow (see Fig. 3), and the angle of inclination is adjusted so as to distribute the powder evenly, as will be described later. Automatically controlled. On the other hand, a packaging mechanism 8 is disposed below the annular divided mass 3, and the packaging mechanism 8 is a known bag making and packaging machine for separate packages, including a packaging bag vertical division line welding mechanism 36, a marking mechanism 37, Encapsulated wire welding mechanism 3
It is mainly composed of 8. A wrapping completion signal is sent to the control unit each time one package is completed.

The operation and usage of the powder distribution packaging machine having the above configuration will be explained with reference to FIGS. 1 to 4. First, input from the input device 27 of the input control device 9 is sent to the control section 28, When any position is specified among the left and right end cell positions of the range of divided cells to which the water is to be distributed, the specified position and the current position of the supply gutter 26 suspended at the tip of the mixing tank outlet 14 are specified. The difference between the two rotational angles is calculated by the control unit 28 via the memory unit 29, and a rotation direction designation signal is given to the nearest direction, whichever is the forward or reverse direction, and the motor drive circuit 32 rotates the rotation motor 12 to the target position. reach.

Subsequently, the substrate 4 repeats a reciprocating motion according to the number of divided squares to which the powder is to be distributed, and distribution is started. Here, the initial position of the annular divided mass 3 is determined by taking measures such that the output of the rotational position detection sensor 13 changes at a specific position of the inner gear 11 (by making a cut in the gear itself, etc.). This is done by detecting with the rotational position detection sensor 13. For example, in Figure 2, if we assume that the supply gutter 26 stops at the 43rd position counting from the initial position 1 and repeats the reciprocating movement while dividing the powder into 7 squares numbered 43 to 49, then The movement of 6 squares from the 48th square is detected by the rotational position detection sensor 13 at least once.
Each square is detected, and immediately after passing the 48th square, which is the 6th square, a brake signal is applied to the rotation motor 12, and the motor 12 moves to exactly the 49th square and stops, and then drives in the opposite direction. to start. At this time, it is desirable to perform control such that stopping and starting at the left and right turn points are performed smoothly so that the powder is evenly distributed to each square. The powder is supplied to the divided masses by rotating the mixing tank 16 using the automatic distribution feeder mechanism 7 and dropping the powder. By repeating energization and disconnection of the vibration electromagnet, the powder in the mixing tank 16 is vibrated and mixed completely, preventing it from adhering to the inner wall of the mixing tank, and rotating the tilting motor 17 to rotate the drive transmission mechanism 18. The mixing tank 16 is tilted through the . Before the powder reaches the outlet 14 , it first comes into contact with the powder detection sensor 25 , and a signal is generated from the sensor 25 and sent to the control section 28 .

At this time, the vibration mechanism 19 provided in contact with the lower part of the mixing tank 16 rotates together with the mixing tank 16 when the mixing tank 16 is tilted.

As described above, the amount of powder falling into the divided squares is controlled to be constant by the tilting of the mixing tank 16 and the output of the powder detection sensor 25.

In this way, the mixing tank 16 rotates, and when it rotates to a position of about 90 degrees, there is no remaining amount of powder, and the powder detection sensor 25 confirms that the distribution has been completed, and the tilting motor 17 is reversed to move the mixing tank 16.
is restored to its original position. Next, the process moves to the packaging process, in which the annular divided mass 3 is rotated by a divided mass driving device (not shown), and a packaging mechanism 8 having a powder receiving port 39 waits below the annular divided mass 3. Stop directly above. The amount of rotation of the annular divided mass 3 at this time is controlled by a sensor (not shown) that constantly detects the position of the divided mass at which the powder receiving port 39 has finished distributing, for example, with respect to the initial position of the inner gear 11. Part 2
8, the positional difference from the mass position containing the powder to the powder receiving port 39 is calculated in the same way as above, and the annular divided mass 3 is rotated by the divided mass driving device (not shown). Then, the bottom lid of the box containing the powder is opened by the bottom lid opening/closing mechanism 6, and packaging is started. In this way, a signal is emitted from the packaging mechanism 8 each time one square is completed, and each time the annular divided square 3 is rotated by one pitch and the bottom cover of the next square is opened.

As described above, the packaging operation is performed sequentially. During this operation, new powder is added to the mixing tank 16, and the substrate 4 is driven to rotate based on a command from the control unit 28. Since the mechanism 5 moves to the position of an empty divided square, the supply gutter 26 at the tip of the mixing tank 16 also moves together, and powder distribution starts anew. As described above, the reason why the packaging work and the distribution work can be performed simultaneously is that the relative positional relationship between the annular divided mass 3 and the substrate 4 is controlled by the rotary drive mechanism 5.
This is because it is determined by the pinion 10 and inner gear 11.

Although each operation of each of the above-mentioned mechanisms is all driven and controlled by commands from the control section 28 of the input control device 9, a group of manual switches are also installed to control the start of operation, packaging, etc. Of course, settings such as the following can be made.

Next, to briefly explain the control mechanism block diagram shown in FIG. 4, the input device 2 of the input control device 9
The signal input via 7 is temporarily stored in the memory section 29 of the control section 28, and via the interface 30, the motor drive circuit 32 drives the rotation motor 12, and the inner gear 11 and pinion 10
The substrate 4 reciprocates through a gear device. The movement at this time is fed back to the control section 28 by the rotational position detection sensor 13. On the other hand, after the predetermined powder is stored in the mixing tank 16, a drive command is sent from the control unit 28 to the automatic distribution feeder mechanism 7.
The vibration mechanism 19 starts vibrating through the magnet drive circuit 34, and the tilting motor 17 is rotated by the motor drive circuit 33, causing the drive transmission mechanism 1 to rotate.
8, the mixing tank 16 starts rotating. In this case as well, the output from the powder detection sensor 25 is sent to the control unit 2.
Feedback is given to 8. Then, a distribution completion signal from the powder detection sensor 25 is detected and the mixing tank 16 is restored to its original position. At the same time, the rotation of the rotation motor 12 is stopped, and the divided mass drive device 3
The bottom lid opening/closing mechanism 6 rotates and moves the mass to which the powder is distributed by 5 to the powder receiving port 39 of the packaging mechanism 8.
The powder is dropped and the packaging is completed, and as described above, each control signal is sequentially commanded by the control unit 28, and the process is automatically executed. Furthermore, in the above explanation, the automatic distribution of powders has been explained, but the object to be distributed is not limited to powders but also applies to tablets, and the rotation motor 12 and tilting motor 17 are as follows. It is possible to use a pulse motor, a servo motor, or a normal motor, and when a pulse motor is used as the rotation motor 12, the drive pulse of the rotation pulse motor is used instead of the rotation position detection sensor 13. Therefore, the amount of movement of the substrate 4 with respect to the annular divided mass 3 can be detected.

[Effect of idea]

As described above, in this invention, the powder feeder drive device outputs a detection member that sequentially detects the amount of relative rotation of the powder feeder with respect to the annular divided masses by a relative angle corresponding to at least the pitch between each of the annular divided masses. Accordingly, each square of the annular divided squares is sequentially counted and the reciprocating rotation of the powder feeder is controlled based on the counted number of squares. It is possible to decelerate the powder feeder before it reaches the cells at both ends of the annular partition, and if the relative rotation amount of the powder feeder to the annular partition is sequentially detected by the relative angle subdivided from the pitch between each of the annular partitions, the annular The relative position of the powder feeder with respect to the divided mass can be sequentially detected with higher accuracy, and therefore the powder feeder can be rotated with higher precision relative to the annular divided mass to perform highly accurate powder distribution work. Further, a predetermined number of mass groups to which powders are to be distributed and supplied can be divided into two groups, for example, and the powder feeder can be rotated reciprocally for each group, so that powders can be distributed and supplied to the predetermined number of mass groups as a result, Therefore, for example, if the number of squares to which powder should be distributed and supplied is 21, but there are only 11 empty squares,
As the packaging process progresses, instead of waiting until the remaining 10 squares become vacant, first rotate the powder feeder back and forth for the first 11 squares, for example, three times, and then rotate the powder feeder back and forth for the first 11 squares, and then rotate the powder feeder for the 10 vacant squares in between. It has excellent effects such as being able to quickly complete the powder distribution work by rotating the powder feeder back and forth three times in the same manner as before, and then rotating the powder feeder back and forth until there is no powder left in the 21 squares. .

[Brief explanation of the drawing]

The drawing shows an example of this invention.
FIG. 1 is a front sectional view showing the entire apparatus, FIG. 2 is a plan view of the essential parts, FIG. 3 is a front sectional view of the automatic distribution feeder mechanism, and FIG. 4 is a control block diagram. DESCRIPTION OF SYMBOLS 1...Machine base, 2...Axis, 3...Annular divided mass, 4...Base board, 5...Rotation drive mechanism, 6...Bottom cover opening/closing mechanism, 7...Automatic distribution feeder mechanism, 8...
... Packaging mechanism, 9 ... Input control device, 10 ... Pinion, 11 ... Inner gear, 12 ... Rotation motor, 13 ... Rotation position detection sensor, 14 ...
Outlet, 15...Rotation fulcrum, 16...Mixing tank, 1
7...Tilt motor, 18...Drive transmission mechanism, 1
9... Vibration mechanism, 20... Fixed plate, 21... Screw, 22, 23... Sprocket, 24... Chain, 25... Powder detection sensor, 26... Supply gutter, 27... Input device, 28... ...Control unit, 29...
...Memory section, 30...Interface, 31...
...Bearing, 32, 33...Motor drive circuit,
34...Magnet drive circuit, 35...Divided mass drive circuit, 36...Dividing line welding mechanism, 37...Engraving mechanism, 38...Enclosed line welding mechanism, 39...Powder receiving port, 40...Color ,41...Natsuto.

Claims (1)

[Scope of utility model registration request] 1. A powder distributing and packaging machine comprising a powder feeder, an annular divided mass, and a packaging device, wherein the powder feeder is driven by a drive device to rotate back and forth along the annular divided mass to distribute and supply powder to a predetermined number of masses arbitrarily selected along the annular divided mass, the annular divided mass being driven by the drive device to rotate one mass at a time in response to the packaging operation of the packaging device, and the packaging device packages one package of powder discharged one mass at a time by the rotation of the annular divided mass. The powder distributing and packaging machine is characterized in that it is provided with a detection member for successively detecting an amount of relative rotation of the powder feeder with respect to the annular divided mass by at least a relative angle corresponding to a pitch between each mass of the annular divided mass, and an output of the detection member is applied to a drive device of the powder feeder, so that the drive device of the powder feeder is configured to successively count each mass of the annular divided mass in accordance with the output of the detection member, and to control the reciprocating rotation of the powder feeder based on the number of masses counted.