JPH0331374B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus used for packing articles having a predetermined weight and volume into containers such as bags.

Currently, there are flaky products such as cornflakes. When packaging such products in bags, etc., the manufacturer may request that the products be packed in bags with a predetermined weight or more and a predetermined volume or more. This is because the products are flaky and breakable, so they tend to break into small pieces while being transported through the production line. This is because the volume of the product inside the bag or the like becomes smaller and the appearance of the product becomes worse. Previously, Tokukaisho
As disclosed in Japanese Patent No. 58-108413, there is a method in which a container is roughly filled in advance, the weight of the rough filling is measured, and the shortfall in the weight of the rough filling relative to the target weight is compensated for using a combination scale. . If such a combination scale is configured to perform rough filling into a container by a predetermined volume, the above request can be achieved to some extent, but if the combination calculation is not performed every time rough filling is performed, As a result, their work efficiency was decreasing. Also, the special application was made in 1982.
No. 73525 (Japanese Unexamined Patent Publication No. 168512/1983) discloses a combination scale that can perform combination calculations at high speed, but with this, it was not possible to obtain a combination of weights exceeding a set weight and a predetermined volume. .

SUMMARY OF THE INVENTION An object of the present invention is to provide a weighing machine that can quickly fill bags or the like with a predetermined volume or more of a predetermined weight or more.

Therefore, the present invention includes one or more first weighing machines containing a predetermined volume of articles to be weighed;
a plurality of second weighing machines each containing an object to be weighed with a volume smaller than the predetermined volume; and one or more second weighing machines each containing an object to be weighed with the predetermined volume, separate from the first weighing machine. When the weighing signals of the third weighing machine and the first or third weighing machine instructed by the switching signal are equal to or higher than a predetermined set weight, a pass signal is generated, and the first or third weighing machine instructed by the switching signal generates a pass signal. a determining section for discharging the predetermined volume of the article to be weighed from the weighing machine No. 3; and a determining section for discharging the predetermined volume of the article to be weighed from the weighing machine No. 3; Therefore, the weighing signals of the second weighing machines other than those prohibited from participating in the combination are combined in various ways always including the weighing signals of the first or third weighing machines, and among these combinations, a combination calculation device for discharging the article to be weighed from an object in which the sum of the weighing signals is equal to or greater than the set weight and includes the designated first or third weighing machine; After that, when the predetermined volume of the article to be weighed is discharged from the first or third weighing machine, the switching signal is sent to instruct the first or third weighing machine different from the weighing machine that discharged the article. A switching unit that supplies the determination unit and the combination calculation unit, and when the article to be weighed is discharged from among the plurality of second weighing machines, transmits the combination prohibition signal to the second weighing machine that discharged the article from the plurality of second weighing machines. and a combination prohibition section that supplies the data to the arithmetic section.

The invention operates as follows. Now, it is assumed that the switching signal initially indicates the first weighing machine. Further, since no article to be weighed is initially discharged from the second weighing machine, the combination prohibition section does not generate a combination prohibition signal to any of the second weighing machines. Therefore, initially, the first weighing machine and the second weighing machine perform the same operation as in the first invention. Then, when the article to be weighed is discharged from the first weighing machine, the switching section generates a switching signal instructing the third weighing machine. If the articles to be weighed are initially discharged from some of the second weighing machines, the combination prohibition section supplies a combination prohibition signal that prohibits these weighing machines from participating in the combination. Therefore, the second time, the weighing signal of the third weighing machine is compared with the set weight, and if a pass signal is generated, the third weighing machine sends the article to be weighed with a predetermined volume or more and a set weight or more. be discharged. When the acceptance signal is not generated, a combination calculation is performed by the third weighing machine and the second weighing machine which is not discharging the article to be weighed, in the same way as in the first invention, and if the weight is equal to or greater than the set weight and Articles to be weighed having a predetermined volume or more are discharged. That is, in the present invention, while a new weighing machine is supplying a new weighing machine to the first weighing machine that discharged the weighing machine, or to the second weighing machine, the third weighing machine or to the third weighing machine and the second weighing machine discharge the weighing machine. It is possible to discharge articles to be weighed that have a set weight or more and a predetermined volume or more from the second weighing machine that did not discharge articles. Moreover, when this discharge is finished, the supply of the articles to be weighed to the first weighing machine and the second weighing machine has been completed, so the supply to the third weighing machine and the second weighing machine is completed. During the weighing process, the first weighing machine and the second weighing machine, which is not supplying the weighed articles, can discharge the weighed articles having a predetermined volume or more and a set weight or more. Hereafter, this is repeated in order. Therefore, according to the present invention, objects to be weighed that have a predetermined volume or more and a predetermined weight or more can be discharged at a very high speed.

Hereinafter, the present invention will be explained in detail based on two illustrated embodiments. A first embodiment is shown in FIGS. 1 to 4. In FIG. 1, reference numeral 2 denotes a pedestal, on which a weighing machine frame 4 is provided. Ten weighing machines 6a are placed on this frame 4 along its periphery.
6j to 6j are arranged. These weighing machines 6a to 6j each have load detectors 8a to 8j, weigh the flaky articles to be weighed housed therein, and generate weighing signals. The weighing machines 6a to 6j also have discharge gates 10a to 10j, which can be opened to discharge the articles to be weighed inside into the collection chute 12. Although not shown in the figure, a packaging machine is arranged below the collection chute 12. Note that the weighing machines 6a and 6b have a larger volume than the other weighing machines. Weighing machines 6a to 6j
Supply hoppers 14c to 14j are arranged above 6c to 6j, respectively. The supply gates 1 that these supply hoppers 14c to 14j have
By opening 6c to 16j, articles to be weighed can be supplied to weighing machines 6c to 6j. In addition, the supply of the articles to be weighed to the supply hoppers 14c to 14j is as follows.
This is achieved by a dispersion feeder 20 provided at the center of a platform 18 provided so as to straddle the weighing machine frame 4, and eight linear feeders 22 arranged radially from the dispersion feeder 20. Furthermore, the objects to be weighed are supplied to the dispersion feeder 20 from the storage tank 24 by the conveying device 46, and the objects to be measured are supplied to the storage tank 24 by the supply feeder 25.

Articles are supplied to the weighing machines 6a and 6b through the storage tank 24.
This is done by a quantitative supply device 26 provided at the lower part of the interior. The dispensing device 26 has two outlets 30, 30 spaced apart by 180° in the bottom wall 28 of the storage tank 24, as shown in detail in FIG.
These discharge ports 30, 30 have weighing machines 6a, 6b.
A discharge chute 32, 32 is provided which extends over the input port of. A disc-shaped cutting container 34 is arranged on the bottom wall 28 of the storage tank 24. This cut-out container 34 has cut-out pockets 3 having the same volume and located on the same circumference as the discharge ports 30, 30.
Eight 6's are drilled. A partition wall 38 is disposed above the cut-out container 34, and this partition wall 38 is also located on the same circumference as the cut-out pocket 36 and at a 90° angle with the discharge ports 30, 30, respectively.
Two input ports 42, 42 are provided so as to be spaced apart from each other. A stirrer 4 is placed on this partition wall 38.
0 is set. The stirrer 40 has four thin blades 41 spaced apart by 90°, and the stirrer 40 and the cutting container 34 are rotated by a drive device 44 provided outside the storage tank 24, respectively. By rotating the cutout container 34, the articles to be weighed are sequentially filled into each cutout pocket 36 from the input ports 42, 42,
When the cutting container 34 further rotates and the cutting pocket 36 reaches above the discharge ports 30, 30, a certain volume of the article to be weighed is transferred to the discharge chute 32, 30.
32 to the weighing machines 6a, 6b. Note that the stirrer 40 is used to prevent specific objects to be weighed from staying in the storage tank 24. 46
is a conveyance device for supplying the object to be weighed from the storage tank 24 to the dispersion feeder 20, and 48 is a drive shaft for the stirrer 40 and the cutting container 34.

As described above, each of the weighing machines 6a and 6b is supplied with a fixed volume of the article to be weighed, and the remaining weighing machines 6c to 6j are supplied with the weighing machines 6a and 6b by adjusting the dispersion feeder 20 and the linear feeder 22. , 6b is supplied. At this time, as shown in FIG. 3, the weighing signals of the weighing machines 6a and 6b are added by the adder 50, and the added value is the standard weight set in the standard weight setting section 54 by the comparing circuit 52. If the added value exceeds the standard weight, the comparator circuit 52 generates an output "1". This output "1" is supplied to the discharge gates 10a, 10b via OR circuits 56, 58, and both gates 10a, 1
Open 0b. As a result, the articles to be weighed are discharged from the weighing machines 6a and 6b to the collection chute 12, and are packed in bags or the like by a packaging machine located below the collection chute 12.
The discharged articles to be weighed are weighed by weighing machines 6a and 6b.
Since the weights were housed in the same space, they have a predetermined volume together, and since the comparator circuit 52 generates an output of "1", the weight is larger than the standard weight. When the dispensing is finished, the timer 60, which was already started by the output of the comparator circuit 52, produces an output "1", which is supplied to the metering device 26 via the OR gate 62, and the metering device 26 is turned on again. A fixed volume of articles to be weighed is supplied to each of the weighing machines 6a and 6b in preparation for the next bagging.

When the comparator circuit 52 does not generate an output "1",
That is, when the weight of the article to be weighed stored in the weighing machines 6a, 6b is less than the standard weight, the output of the inverter 64 which inverts the output of the comparator circuit 52 is supplied to the combination generating section 66. combines weighing machines 6c to 6j (2 ⁸ -1)
Generate a street combination signal. The combination signal consists of an 8-digit binary signal corresponding to the weighing machines 6c to 6j, and when the corresponding weighing machine participates in the combination, the digit becomes "1". As the combination generator 66, for example, an eight-stage binary counter can be used. Based on these combined signals, the selection addition circuit 68 converts the weighing signals of the weighing machines 6c to 6j into (2 ⁸
-1), and generates an output signal that is the result of adding the addition value of the adder 50 to each combination. This output signal is transmitted to the combination determining section 70
supplied to

The combination determination unit 70 selects the addition circuit 68 within the standard weight and upper limit weight ranges set in the standard weight setter 54 and upper limit weight setter 71, respectively.
When the output signal of is input, first a storage command signal is generated. Then, the output signal of the selection addition circuit 68 at that time is used instead of the upper limit weight, and when the output signal of the selection addition circuit 68 is input again between this and the standard weight, a storage command signal is generated, and the storage command signal is generated at that time. The output signal of the selective addition circuit 68 is also used in place of the upper limit weight. Repeat this below.

A storage command signal from the combination determination section 70 is supplied to a combination storage section 72 . The combination storage unit 72 consists of nine stages of memory, of which eight stages corresponding to the weighing machines 6c to 6j are supplied with combination signals from the combination generation unit 66, and the combination determination unit 70 generates a storage command signal. Each time, the stored value is updated to the combined signal at that time. In addition, weighing machines 6a, 6
"1", which means to participate in the combination, is always stored in one stage corresponding to b. Therefore, when all the combinations are completed, the combination storage section 72 includes the weighing machines 6a and 6b, and the combination that is equal to the standard weight or within the range between the standard weight and the upper limit weight and that is the most standard weight. Close combinations are memorized.

When all combinations are executed, inverter 6
Timer 74, which had already been activated by the output of
generates a sending command signal, the value stored in the combination storage section 72 is supplied to each discharge gate 10a to 10j, the discharge gate of the weighing machine related to the combination stored in the combination storage section 72 opens, and the article to be weighed is It is discharged to a collection chute 12 and packed into bags by a packaging machine. This discharged article to be weighed includes the items that were housed in the weighing machines 6a and 6b, so it naturally has a volume greater than the predetermined volume, and is equal to or equal to the standard weight by the combination calculation. Since it is selected to be within the range of the upper limit weight and closest to the standard weight, it is naturally greater than the standard weight. The combination signal stored in the combination storage section 72 is also supplied to nine timers 75a to 75i, and among the timers 75b to 75i, those activated by the "1" digit of the combination signal are discharged. When the gate is closed, the supply gate of the supply hopper located above the weighing machine which discharged the article to be weighed among the weighing machines 6c to 6j is opened to input the article to be weighed. At the same time, the timer 75a drives the quantitative supply device 26 to feed the weighed articles into the empty weighing machines 6a and 6b in preparation for the next bagging.

Incidentally, in this embodiment, a crusher 76 is also provided above the supply feeder 25. This was established for the following reasons. Even if the article to be weighed is in the form of a flake, its size may vary.For example, the article to be weighed stored in the weighing machines 6a, 6b is large, and although it has a predetermined volume, its weight is considerably larger than the standard weight. Possibly less. That is, the apparent specific gravity of the article to be measured may be small. In such a case, the articles to be weighed are discharged to the collection chute 12 from the weighing machines 6c to 6d in addition to the weighing machines 6a and 6b by performing a combination calculation, but the total volume of the discharged articles to be weighed is Since the apparent specific gravity of the articles to be weighed is small, there is a possibility that these articles to be weighed may overflow from a container such as a bag. Therefore, the standard weight is subtracted in the subtracter 78 from the addition signal of the adder 50 (the sum of the weighing signals of the weighing machines 6a and 6b) to calculate the deviation Δ. If the apparent specific gravity is small, this deviation △ will be quite large. A subtracter 82 subtracts the allowable deviation A set in the allowable deviation setter 80 from this deviation Δ, thereby calculating the secondary deviation δ. This secondary deviation δ is supplied to the control section 84. The control unit 84
Controlling the crusher 76 according to the secondary deviation δ,
The apparent specific gravity of the article to be weighed that is supplied to the storage tank 24 via the supply feeder 25 is increased. Note that the crusher 76 does not operate when the secondary deviation δ is negative, and supplies the article to be weighed directly to the storage tank 24 via the supply feeder 25.

As a control device for the crusher 76, a device as shown in FIG. 4 can also be used. 86 is a divider,
Here, the output of the adder 50 is divided by the combined volume of the article to be weighed supplied to both the weighing machines 6a and 6b set in the volume setting device 88 to calculate the actual apparent specific gravity. Then, the standard apparent specific gravity set in the standard apparent specific gravity setting device 90 is subtracted from this actual apparent specific gravity by the subtractor 92 to obtain the deviation,
This deviation is supplied to the control section 84 to control the crusher 76 in the same manner as shown in FIG. 94
96 is a display for displaying the actual apparent specific gravity obtained by the divider 86;
This is an alarm that notifies you that the device has been activated.

The second embodiment has a total of 10 weighing machines 106a, 106b and 6c to 6j, similar to the first embodiment.
1, and is arranged in the same manner as in the first embodiment, ie in the same manner as shown in FIG.
However, the weighing machines 106a and 106b are
The total volume of the articles to be weighed supplied to the weighing machines 106a and 6b is the predetermined volume, whereas the predetermined volume is only the articles to be weighed that are supplied to the weighing machine 106a, and the quantity of the articles to be weighed that is similarly supplied to the weighing machine 106b is the same. The difference is that the volume becomes a predetermined volume.

The supply of articles to the weighing machines 106a and 106b is as follows:
The quantitative supply device 12 also provided at the bottom of the storage tank 24
6. The quantitative supply device 126 has two discharge ports 30, 30 on the bottom wall 28 of the storage tank 24 as shown in FIG. 5, and a cutting container 134 is arranged on the bottom wall 28 as shown in FIG. This is the same as in the first embodiment. However, seven cutout pockets 136 are bored at equal intervals, and at least two cutout pockets 136, 1 are provided in the partition wall 38 above the cutout container 134, as shown in FIG.
36 is located in the elongated hole-shaped input port 1
It differs from the quantitative supply device 26 in that holes 42, 142 are provided. Therefore, four cutout pockets 1
36, and when the cutout pocket 136 supplied with the articles to be weighed is placed above one of the discharge ports 30, the articles are fed from the one discharge port 30 through the discharge chute 32 to, for example, the weighing machine 106a. The article to be weighed is fed and then some cut out container 13
4 rotates, another cut-out pocket 136 arrives on the other outlet 30 and from the other outlet 30 via the outlet chute 32 to the weighing machine 106b, for example.
The article to be weighed is supplied. That is, weighing machine 10
6a and 106b are not supplied with objects to be weighed at the same time, but alternately.

FIG. 8 shows a circuit diagram of the second embodiment. This circuit has almost the same configuration as the first embodiment,
Equivalent parts are given the same reference numerals and their explanation will be omitted.
However, the second embodiment differs from the first embodiment in the following points.

(1) In the first embodiment, the weighing signals of the weighing machines 6a and 6b are added and supplied to the comparison circuit 52 and the selection addition circuit 68, and the output of the comparison circuit 52 is simultaneously supplied to the discharge gates 10a and 10b. However, the weighing machines 106a, 10
The weighing signal 6b is alternately supplied to the comparison circuit 52 and the selection addition circuit 68 via the switching circuit 200, and the output of the comparison circuit 52 is supplied to the switching circuit 202,
Weighing machine 1 via OR circuits 204a and 204b.
06a, 106b discharge gates 110a, 11
Points fed alternately to 0b. However, the switching circuits 200 and 202 include, for example, a one-shot multivibrator, and the driving signal to the quantitative supply device 126 (the output signal of the OR circuit 62) is used as the switching signal.

(2) In the first embodiment, the outputs of each stage of the combination generator 66 are directly supplied to the selective addition circuit 68, but are supplied via gates 208, and these gates 208 are provided with a detection circuit. 210
A combination prohibition signal is supplied from the combination prohibition signal, and the output of the stage corresponding to the combination prohibition signal is sent to the selective addition circuit 68.
Points that are not supplied to. This detection circuit 210 detects when the articles to be weighed are discharged from the weighing machines 6c to 6j.
When a new article to be weighed is input, the weighing signal exceeds the threshold value from the threshold circuit 212 for a predetermined time (time until the weighing signal becomes stable);
A combination prohibition signal is generated that prohibits the supply of the output of the stage of the combination generating section 66 corresponding to the weighing machine to which the article to be weighed has been newly supplied.

(3) While in the first embodiment there was only one combination storage unit 72, there are now two combination storage units 72 and 172. The combination storage unit 172
The output of the stage corresponding to the weighing machine 106a of the combination storage section 72 is supplied to the discharge gate 110a via the OR circuit 204a, whereas the output of the stage corresponding to the weighing machine 106a of the combination storage section 172 is supplied to the weighing machine 106b of the combination storage section 172. The output of the corresponding stage is discharge gate 1
The difference is that it is supplied to 10b via an OR circuit 204b. Further, the remaining stages of the combination storage unit 172 are supplied to the discharge gates 10c to 10j via OR circuits 204c to 204j, respectively, similarly to the remaining stages of the combination storage unit 172. In addition, the output of each stage of the combination storage section 172 is
2, the fixed quantity supply device 126 and the supply gates 14c to 14j are supplied via timers 175a to 175j and OR circuits 62, 214c to 214j.
is supplied to. In addition, the combination storage unit 72,
172 is supplied with the combination signal that has passed through the gate circuit 208, and these combination storage units 72, 1
A combination storage command signal from the combination determination section 70 is supplied to the combination determination section 72 via the switching circuit 216.
A switching signal to this switching circuit 216 is supplied from the gate circuit 62 similarly to the switching circuits 200 and 202. Furthermore, combination storage units 72, 172
The sending command signal to the timer etc. from timer 7 is
4 is provided by a switching circuit 218 which inverts the output each time the output is provided.

This embodiment works as follows. At present, articles to be weighed are being supplied to the weighing machines 106a, 6c to 6j, and the weighing signal of the weighing machine 106a is sent to the switching circuit 2.
00 to the comparison circuit 52 and the selection addition circuit 68.
The output of the comparison circuit 52 is supplied to the switching circuit 20.
2. Discharge gate 110 via OR circuit 204a
a, the storage command signal from the combination determination unit 70 can be supplied to the combination storage unit 72 via the switching circuit 216, and the detection circuit 210 does not generate any combination prohibition signal. Suppose there is no.

In this state, the weighing machines 106a, 6c to 6
j, the comparison circuit 52, the selection addition circuit 68, the combination generation section 66, the combination storage section 72, etc. operate in the same manner as in the first embodiment, and only the weighing machine 106a or this and some of the weighing machines 6c to 6j are operated. (e.g. 6
The articles to be weighed are discharged from the two weighing machines 106b, 6c and 6j), and the articles to be weighed are newly delivered to the weighing machines 106b, 6c and 6 from the quantitative supply device 126 and the supply gates 14c and 14j.
It is thrown into j. Note that the supply by the quantitative supply device 126 ends earlier than the supply from the supply gates 14c and 14j. At this time, switching circuit 2
00, 202, and 216 are switched respectively.

If the liquid is discharged only from the weighing machine 106a, the operation will be the same as in the first embodiment, just by replacing the weighing machines 106a and 106b.

However, in addition to the weighing machine 106a, for example, the weighing machine 6
If the articles to be weighed are also being discharged from weighing machines 6c and 6j, the detection circuit 210 stops supplying the combination signal to weighing machines 6c and 6j, so the operation is slightly different. That is, when the weighing signal from the weighing machine 106b is equal to or greater than the set weight, the weighing machine 106b discharges the article to be weighed and supplies the weighing machine 106a with the weighing signal; however, when the weighing signal is less than the set weight, the weighing machine 6c
A combination is obtained by excluding 6c and 6j from among 6j to 6j and the weighing machine 106b, and the combination is stored in the combination storage section 172. And timer 7
By the sending command signal generated by the switching circuit 218 in response to the output of
j, timers 175a to 175j, the weighing machine 106b and the weighing machine 6c to 6j included in the combination (for example, 6d, 6e) discharge the article to be weighed, and the weighing machine 106a, 6d, 6e is covered with the weighing machine 106a, 6d, 6e. Measured articles are supplied. At this time, switching circuit 2
00, 202, and 216 are switched back to their original states. Next, the weighing signal of the weighing machine 106a is compared with the set weight again, but if it is still less than the set weight, the weighing signals of the weighing machines 6c to 6j excluding the weighing machines 6d and 6e (at this time, the weighing signals of the weighing machines 6c and 6j) are compared with the set weight. Since the weighing signal is stable, these weighing machines 6c,
The combination prohibition signal for 6j has disappeared. )
and the weighing machine 106a are combined and stored in the combination storage section 72. The following works in the same way.

Note that this embodiment is also provided with a crusher control device as shown in FIGS. 3 and 4.
However, although the output of the adder circuit 50 is supplied to the subtracter 78 in FIG. 3 and the divider 86 in FIG. 4, it is necessary to supply the weighing signal from the weighing machine 106a or 106b instead. Alternatively, the subtracters 78, 82 and the control section 84 shown in FIG.
6a and 106b, respectively, or the fourth
Divider 86, subtracter 92, and control unit 84 shown in the figure
may be provided for each of the weighing machines 106a and 106b.

In the above two embodiments, when performing the combination calculation, the weight that is equal to the standard weight or closest to the standard weight within the range of the standard weight and the upper limit weight is selected.
You may initially select one that falls within the range between the standard weight and the upper limit weight. Also, each weighing machine has frame 4
Although they are arranged along this line above, they may be arranged in one or more rows. Further, eight weighing machines 6c to 6j are provided, but the number can be increased or decreased as desired. Further, although the stirrer 40 is shown to have blades 41, this may be removed. Although the volume of the cutout pocket of the metering supply device is assumed to be constant, it may be made variable. In addition, various known quantitative supply devices other than those shown in the drawings can be used. In the first embodiment, there are two weighing machines that supply a fixed amount, but it may be one or three or more. When there is only one weighing machine for quantitative feeding, use the quantitative feeding device shown in FIGS. 5 to 7 or the quantitative feeding device shown in FIG. 2 with one discharge port 30 and one discharge chute removed. You may. In the second embodiment, the predetermined volume can be obtained with one weighing machine 106a or 106b, but the predetermined volume may be obtained with a plurality of weighing machines as in the first embodiment. Further, although one quantitative supply device is used to supply a fixed amount to two weighing machines, one quantitative supply device may be provided for each weighing machine. Alternatively, the same quantitative feeding device as in the first embodiment may be used to feed the objects to be weighed that have been fed therefrom to the weighing machines 106a and 106b, respectively. Note that the crusher control device may be used in addition to the weighing machine shown in the above embodiment.
In the combination scale disclosed in No. 63132 of 1955, when constantly supplying a fixed amount to a weighing machine included in the combination, the method can also be applied to the fixed-quantity feeding device.

[Brief explanation of drawings]

FIG. 1 is a schematic layout diagram of a first embodiment of a weighing machine according to the present invention, FIG. 2 is an assembly diagram of a quantitative feeding device used in the first embodiment, and FIG. The block diagram of the electric circuit used, Figure 4, is the same as Figure 1.
FIG. 5 is a block diagram of the crusher control device used in the second embodiment, and FIG.
FIG. 6 is a plan view of the quantitative feeding device used in the second embodiment with the partition wall removed, and FIG. 7 is a plan view of the second embodiment.
FIG. 8 is a plan view of the metering device used in the second embodiment, and FIG. 8 is a block diagram of the electric circuit of the second embodiment. 6a, 6b, 106a...first weighing machine, 6c
to 6j...second weighing machine, 52...judgment unit, 5
4,66,68,70,71,72,172...
Combination calculation device, 106b...Third weighing machine, 2
00, 202...Switching unit, 210...Detection circuit (combination prohibited circuit).

Claims (1)

[Claims] 1. One or more first weighing machines each containing a predetermined volume of an article to be weighed, and a plurality of second weighing machines each containing a smaller volume of an article to be weighed than the predetermined volume; One or more third weighing machines that house the predetermined volume of the article to be weighed separately from the first weighing machine, and the first or third weighing machines are instructed to do so by a switching signal. a determination unit that generates a pass signal when the signal is equal to or greater than a predetermined set weight and discharges the predetermined volume of the article to be weighed from the instructed first or third weighing machine; When not generated, the weighing signal of the first or third weighing machine instructed above and the weighing signal of a second weighing machine other than the one whose combination is prohibited by the combination prohibition signal are always generated by the instructed first or third weighing machine. Weighing signals from the third weighing machine are included in various combinations. Among these combinations, the sum of the weighing signals is greater than or equal to the set weight, and the first
or a first corresponding to a combination including a third weighing machine.
or a third weighing machine and a combination calculation device for discharging the article to be weighed from the second weighing machine;
When the predetermined volume of the article to be weighed is discharged from the weighing machine, the switching signal for instructing a first or third weighing machine different from the weighing machine from which the weighing machine was discharged is supplied to the determination section and the combination calculation device. and a combination prohibition unit that supplies the combination prohibition signal to the combination calculation unit when the article to be weighed is discharged from among the plurality of second weighing machines. A weighing machine.