JP2000314656A - Combined weighing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily control the number of extrusion hopper in proper value by indicating both of combined average weighing value of the number of hoppers having extruded weighed goods selected by combination in a plurality of times and a reference data for judging good or bad of the data. SOLUTION: An operation means of average extruding, hopper number operates the average of a plurality of combined weighing of the number of hoppers (sum of weighing hoppers WH and booster hoppers BH) having extruded goods to be weighed selected by combination in a plurality of times. An indication means indicates on the screen extruded weight, average extruded weight, extruding hopper number and average extruding hopper number, and indicates reference data of excess, proper, lack of the data in bar graph for judging good or bad of the data. For example, if the proper number range of the extruding hopper is 3.4 to 4.2, the average hopper number is 3.2, then the bar graph 47 shows that the extruding hopper number is lacking tendency. Thus, the supply amount to each hopper is changed with UP key 48 at this moment, to control the number of extruding hopper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which objects to be weighed, such as confectionery and food, are put into a plurality of hoppers, and a hopper having a combination close to a target value is selected from the results of weighing in each hopper, and the objects to be weighed are selected. The present invention relates to a combination weighing device for discharging.

[0002]

2. Description of the Related Art Conventionally, there has been a combination weighing apparatus for weighing an object to be weighed, such as a confectionery, fruit, or processed food having an irregular shape, in a target weight range. Are known.

[0003] This type of combination weighing device includes a plurality of radiation feeders for transporting an object to be weighed, a plurality of pool hoppers,
A plurality of weighing hoppers and weighing devices connected to the weighing hoppers are provided, the weighing values of the respective weighing devices are combined and operated, and a combination of weighing hoppers having a weight within a certain allowable range is selected to discharge an object to be weighed. Let it.

In the combination calculation, the weighing accuracy changes in accordance with the total number of combinations. The total number of combinations is determined based on the number of hoppers that can participate in the combination (the number of participating hoppers) and the object to be weighed is selected. It changes according to the number of discharged hoppers (number of discharged hoppers). In other words, in combination weighing, it is important to set the number of discharge hoppers to an optimum value. Therefore, it is necessary to change the supply amount to each hopper and adjust the number of discharge hoppers to an appropriate value.

Therefore, in a conventional combination weighing apparatus, a remote controller (remote controller) attached to the apparatus is used.
Is displayed for each combination weighing, the discharge weight, the number of discharge hoppers, and the participation status of each hopper combination (FIG. 8), and the operator can view the data displayed on the screen. While changing the supply amount to each hopper, the number of discharge hoppers is adjusted. Here, the discharge weight refers to the total weighed value of the hopper from which the object to be weighed is discharged in combination.

[0006]

However, in combination weighing, in order to adjust the number of discharge hoppers to an appropriate value, it is not sufficient to know only the number and weight of discharge hoppers for each combination weighing. It is necessary to grasp the number of discharge hoppers and the tendency of the discharge weight in the past combination weighing.

On the display screen of the conventional combination weighing device, the display of the discharged weight and the number of discharged hoppers changes at a high speed as the weighing speed increases. For this reason, the operator cannot catch up with the change of the display, and cannot read the values of the discharged weight and the number of discharge hoppers, and it has been difficult to change the supply amount, that is, adjust the number of discharge hoppers.

The present invention solves the above-mentioned problems and provides a combination weighing device capable of easily adjusting the number of discharge hoppers to an appropriate value by displaying data as a guide for adjustment. It is an object.

[0009]

In order to achieve the above object, a combination weighing apparatus according to a first aspect of the present invention combines a weighing value of an object to be weighed supplied to a hopper and calculates a combination within an allowable range. A combination weighing apparatus for selecting the number of hoppers from which a combination is selected and the objects to be weighed are discharged, and an average discharge hopper number calculating means for calculating an average value of a plurality of combination weighing operations; The means displays data based on the average number of discharge hoppers, and also displays guide data for judging the quality of the data.

According to the apparatus of the first aspect, since the data based on the average number of discharge hoppers is displayed, the tendency of the number of discharge hoppers in a plurality of combination weighing operations can be easily grasped. Moreover, since the data based on the average number of discharge hoppers and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the number of discharge hoppers is appropriate. it can.

According to a second aspect of the present invention, there is provided a combination weighing apparatus according to the first aspect, wherein data based on the average number of discharge hoppers and reference data for judging the quality of the data are displayed. Thus, the supply amount of the object to be weighed to the hopper can be changed.

According to the apparatus of the second aspect, the supply amount of the object to be weighed to the hopper is changed while observing the tendency of the number of discharge hoppers as a guide for adjustment, and the number of discharge hoppers can be easily adjusted to an appropriate value. Can be adjusted.

According to a third aspect of the present invention, there is provided a combination weighing apparatus for calculating a combination of weighing values of objects to be weighed supplied to a hopper and selecting a combination falling within an allowable range. Average discharge hopper weight calculating means for calculating an average discharge weight per hopper based on the number of discharge hoppers in the combination weighing and the weighed value of the discharged hoppers, and the display means is configured to calculate the average discharge hopper weight The data based on the data is displayed, and the reference data for judging the quality of the data is also displayed.

According to the third aspect of the present invention, since the data based on the average discharge hopper weight is displayed, the tendency of the discharge weight per discharge hopper (discharge hopper weight) in a plurality of combination weighing operations can be easily determined. You can figure out. Moreover, since the data based on the average discharge hopper weight and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the discharge hopper weight is appropriate. it can.

According to a fourth aspect of the present invention, there is provided the combination weighing apparatus according to the third aspect, wherein data based on the average discharge hopper weight and reference data for judging the quality of the data are displayed. Thus, the supply amount of the object to be weighed to the hopper can be changed.

According to the apparatus of the fourth aspect, the supply amount of the object to be weighed to the hopper is changed while observing the tendency of the discharge hopper weight, which is a guide for adjustment, so that the discharge hopper weight can be easily adjusted to an appropriate value. Can be adjusted. Then, by adjusting the weight of the discharge hopper, the number of discharge hoppers can be adjusted to an appropriate value.

According to a fifth aspect of the present invention, there is provided a combination weighing apparatus for calculating a combination of weighing values of objects to be weighed supplied to a hopper and selecting a combination falling within an allowable range. Stability determination means for determining whether or not the weighing value of the hopper has been stabilized, and in a plurality of combination weighing, based on the number of hoppers determined to be stabilized and the weighing value of the hopper determined to be stabilized, Average stable hopper weight calculating means for calculating an average weight per hopper of the hopper determined to be stabilized, wherein the display means displays data based on the average stable hopper weight and determines whether the data is good or bad. It is characterized in that reference data for judging is also displayed together.

According to the fifth aspect of the present invention, since the data based on the average stable hopper weight is displayed, the weight per hopper of the hopper determined to be stabilized in a plurality of combination weighings (per hopper). The tendency of stable hopper weight) can be easily grasped. Moreover, since the data based on the average stable hopper weight and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the stable hopper weight is appropriate. it can.

According to a sixth aspect of the present invention, there is provided the combination weighing apparatus according to the fifth aspect, wherein data based on the average stable hopper weight and reference data for judging the quality of the data are displayed. Thus, the supply amount of the object to be weighed to the hopper can be changed.

According to the device of the sixth aspect, the amount of the object to be weighed is changed to the hopper while observing the tendency of the stable hopper weight, which is a guide for adjustment, and the weight of the stable hopper is easily adjusted to an appropriate value. Can be adjusted. The number of discharge hoppers can be adjusted to an appropriate value by adjusting the weight of the stable hopper.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cut-away schematic front view showing a combination weighing device according to an embodiment of the present invention.
In FIG. 1, an object to be weighed M conveyed by a conveyor 1 is supplied via a charging chute 2 onto a flat conical dispersion feeder 3. The dispersion feeder 3 is vibrated by driving the vibrator 4 to disperse the weighing object M. A plurality of radial feeders 7 each having a vibrator 8 are radially arranged below the dispersion feeder 3, and a plurality of pool hoppers 9 are provided below the distal end of each radial feeder 7.
Are circularly arranged so as to correspond to the respective drive feeders 7 individually. Further, below the pool hopper 9, a plurality of weighing hoppers 10 are arranged in a circular shape so as to correspond to the respective pool hoppers 9, and below the plurality of booster hoppers 12.
Are arranged in a circle corresponding to each of the weighing hoppers 10 individually. The pool hopper 9, the weighing hopper 10, and the booster hopper 12 are provided with gates 13, 14, 15, 16 for opening and closing these lower discharge ports.

Each of the radiation feeders 7 supplies the object M received from the dispersion feeder 3 to the corresponding pool hopper 9 by vibration, and the pool hopper 9 temporarily pools the supplied object M after pooling. Is discharged by the opening movement of the gate 13 and supplied to the weighing hopper 10.

The weighing hopper 10 includes the weighing hopper 1
It is supported by a case 23 to be described later via a weighing device 11 such as a load cell that weighs the weight of the object M within 0. Below the weighing hopper 10, a booster hopper 1 for temporarily storing the object M discharged from the weighing hopper 10 is provided.
2, a collecting / discharging chute 17 for collecting the objects M to be weighed discharged from the weighing hopper 10 and / or the booster hopper 12 at the lower center thereof is disposed below the booster hopper 12. A timing hopper 18 is connected to a lower discharge port of the collective discharge chute 17. The objects to be weighed M discharged from the selected weighing hopper 10 and the booster hopper 12, which will be described later,
After being collected by 7, it is supplied to a packaging machine 19 through a timing hopper 18 and packed. Note that the combination weighing device may not include the booster hopper 12 in some cases.

Each of the above components is supported as follows. That is, a case 23 is supported on a main body frame 21 placed on a support gantry 20 via a plurality of support legs 22, and a charging chute 2, a dispersion feeder 3, and a radiant feeder 7 are provided above the case 23. And a pool hopper 9. In the case 23, the measuring instrument 11 is provided.
Also, a control unit, a driving device, and the like (not shown) of the pool hopper 9, the weighing hopper 10, and the booster hopper 12 are stored therein.

An object M to be weighed by each weighing hopper 10
Is transferred to the corresponding booster hopper 12 together with the measured value by opening the booster-side gate 14, or the collective discharge chute 1 is moved by opening the chute-side gate 15.
It is discharged to 7. The object M to be weighed is supplied from the pool hopper 9 to the empty weighing hopper 10. Weighing hopper 1
Combination calculation is performed for all hoppers including 0 and the booster hopper 12, and the objects to be weighed M discharged from the hopper selected by this combination calculation are collected by the collecting discharge chute 17 and then pass through the timing hopper 18. And discharged to the packaging machine 19.

FIG. 2 is a block diagram showing the configuration of the control system of the above embodiment. The combination weighing device 1 is taken out of the load cells 30-1 to 30-n, which are a plurality of weighing devices 11 that weigh the objects M stored in the weighing hopper 10, and the load cells 30-1 to 30-n. An amplifier 31 for amplifying each weighing signal, a multiplexer 32 to which each weighing signal is input, an A / D converter 34, for example, D
SP (Digital Signal Process)
(or) 37, a stability determining means 35 which is a part of the controller 37, a controller (CPU) 40 for controlling the entire apparatus, and a remote control unit (remote controller) 41 connected to the CPU 40.

Each of the weighing signals output from the load cells 30-1 to 30-n is amplified by the amplifier 31 and input to the multiplexer 32. Each signal is supplied to the multiplexer 3 receiving the channel switching control signal C1 from the DSP 37.
2, is selectively sampled by an A / D converter 34 in accordance with a sampling control signal C 2 from a DSP 37, is converted into a digital signal, and is input to a CPU 40 via a stability determination unit 35. As the weighing signal of the weighing object M stored in the booster hopper 12, the weighing signal of the weighing hopper 10 that has dropped the weighing object M is temporarily stored in the memory 38 in the CPU 40 and used.

After the weighing signal from each weighing device 11 is processed, the stability determining means 35 determines whether or not the weighing value indicated by the signal has stabilized to be able to participate in the combination. That is, a memory with a flag is provided for each of the hoppers 10 and 12. In the weighing hopper 10, for example, five weighing values are stored, and when each weighing value converges within the reference value, a flag is set. Is determined to be stabilized. Further, in the booster hopper 12, a flag is similarly set when a predetermined time has elapsed since the gate 14 of the corresponding weighing hopper 10 is opened, and it is determined that the hopper 10 has been stabilized. The opening movement of the gate 14 is detected by a sensor (not shown). The hoppers 10 and 12 for which this flag has been set participate in the combination. Therefore, the weighing hopper 10 that has not stabilized for the five weighing values or the booster hopper 12 immediately after the object M has been loaded does not participate in the combination.

Combination operation means 3 built in CPU 40
In step 6, in response to a discharge request from the packaging machine 19 (FIG. 1), the weighing value of the object M determined to be stabilized is calculated in combination, and a combination that falls within a certain allowable range is selected. Then, the discharge command signal OS is output to the control unit of the selected hoppers 10, 12, and the gates 15-1 to 15- are output.
n, 16-1 to 16-n are opened, and the object to be weighed M is discharged to the collecting / discharging chute 17.

Remote controller 41 connected to CPU 40
Is provided with a display means 42, an input means 43, and an average discharge hopper number calculating means 44.

The average discharge hopper number calculating means 44 calculates the average value of the combination weighing of a plurality of times of the number of hoppers from which a combination is selected and the object is discharged. Here, the number of hoppers from which the objects to be weighed have been discharged in combination and selected (the number of discharge hoppers) is the total number of the weighing hoppers 10 and the booster hoppers 12 from which the objects to be weighed M have been discharged. If not, this is the number of weighing hoppers 10 from which the object M is discharged). The display means 42 displays the obtained total weighed value of the objects to be weighed and the number of hoppers 10 and 12 from which the objects to be weighed M have been discharged.

The calculation of the average value is performed by, for example, a moving average method using time series data of a plurality of past (20 to 40) times of combination weighing. In this moving average method, for example, the number of hoppers from which a combination is selected and the object M is discharged is a1, a2, a3 in the past 20 times of combination weighing.
.., The average value of a1 to a20 is calculated, and in the next combination weighing, the average value of a2 to a21 is calculated.
Move the average value each time. The average value thus obtained is displayed on the screen of the display means 42.

As described above, in the combination calculation, the weighing accuracy changes in accordance with the total number of combinations, and the total number of combinations is determined by the number of hoppers that can participate in the combination (the number of participating hoppers).
The number varies according to the number of hoppers (the number of discharge hoppers) from which a combination is selected and the object M is discharged. Therefore, it is important to adjust the number of discharge hoppers to an optimum value.

Here, the relationship between the supply amount of the object M to each of the hoppers 10 and 12 and the number of discharge hoppers will be described. In combination weighing, the weighing values of the hoppers 10 and 12 are combined and operated, and a combination of hoppers having a weight within a certain allowable range is selected to discharge the object M. Therefore, if the number of discharge hoppers is small, , The weighing value of each hopper 10,12, that is, the supply amount of the weighing object M to each hopper 10,12 increases,
Conversely, when the number of discharge hoppers is large, the weighed values of the hoppers 10 and 12, that is, the supply amount of the weighing target M to each hopper, increases. Therefore, when the supply amount to each of the hoppers 10 and 12 is increased, the number of discharge hoppers can be reduced.
When the supply amount is reduced, the number of discharge hoppers can be increased. By changing the supply amount as described above, the number of discharge hoppers can be adjusted to an optimum value.

In this embodiment, on the screen of the display means 42, the discharge weight, the average discharge weight, the number of discharge hoppers and the average discharge hopper number are displayed numerically, and data based on the average discharge hopper number and the data are displayed. The reference data for judging the quality of the data is also displayed.

FIG. 5 shows an example of the screen display of the display means 42. In this example, data based on the average number of discharge hoppers is displayed in a bar graph 47,
By displaying the standard data of the bar graph 47 such as “excess”, “proper”, and “insufficient”, it is possible to easily determine whether the data based on the average number of discharge hoppers is appropriate. Here, the center line of the “appropriate” range indicates the optimum value of the number of discharge hoppers. The bar graph 47
Are provided on the side of the printer with an UP key 48 and a DOWN key 49. By operating these keys, the operator changes the amount of supply to each hopper, and The number can be adjusted. Note that, as in the conventional case, the weighing hopper (W
H) and the discharge state and the stable state of the booster hopper (BH) 12 are displayed in a graphic form. Here, the circled numbers with diagonal lines indicate the hoppers from which the items to be weighed have been discharged in combination.
Circled numbers without diagonal lines indicate hoppers that have been determined to be stable,
The minus hoppers indicate empty hoppers, respectively.

Here, the appropriate range of the number of discharge hoppers is set to 3.4.
This will be described more specifically by taking as an example a case where the value is set to ~ 4.2 (optimal value 3.8). In this case, in FIG. 5A, the average number of discharge hoppers is 3.7, and the bar graph 47 indicates an appropriate range. Therefore, it can be understood that the tendency of the number of discharge hoppers is appropriate. Next, in FIG. 5B, the average number of discharge hoppers is 3.2, and the bar graph 47 indicates an insufficiency range, so it can be understood that the number of discharge hoppers tends to be insufficient. Therefore, in this case, by pressing the UP key 48 until the bar graph 47 indicates the appropriate range, the supply amount to each hopper is changed, and the number of discharge hoppers is adjusted. In this way, adjustment is performed when the number of discharge hoppers tends to be insufficient. In this case, as shown in the figure, it is preferable that the arrow portion of the UP key is lit or blinked to instruct an operator on an appropriate adjustment procedure. The entire UP key may be turned on or blinked. Further, in FIG. 5C, the average number of discharge hoppers is 4.5, and the bar graph 47 indicates an excessive range. Therefore, it can be understood that the number of discharge hoppers tends to be excessive. Therefore, in this case, DOW is continued until the bar graph 47 indicates the appropriate range.
By pressing the N key 49, the supply amount to each hopper is changed, and the number of discharge hoppers is adjusted. In this way, adjustment is performed when the number of discharge hoppers tends to be excessive. Also in this case, as in the case where the number of discharge hoppers tends to be short, it is preferable that the entire DOWN key or the arrow portion is turned on or blinked to instruct the operator to perform an appropriate adjustment procedure. .

In the case of FIG. 5A, the bar graph 47 indicates an appropriate range. However, the operator makes fine adjustment using the UP key 48 so that the number of discharge hoppers is set to the optimum value. 8 may be adjusted.

Further, as the data based on the average number of discharged hoppers, an average discharged weight per hopper may be obtained and displayed from the average number of discharged hoppers and the average discharged weight. The display state and the adjustment method in this case are the same as those in other embodiments described later, and thus the description is omitted here.

As described above, the operator can easily grasp from the bar graph 47 whether the tendency of the number of discharge hoppers is appropriate or whether the number is excessive or insufficient. , The number of discharge hoppers can be adjusted appropriately. In addition, the adjustment key is lit or flashed according to the tendency of the number of discharge hoppers, and an appropriate adjustment procedure is instructed to the operator. Therefore, even an unskilled operator can easily adjust the number of discharge hoppers.

Next, another embodiment of the present invention will be described. Remote controller 4 of combination weighing device according to this embodiment
1 is provided with an average discharge hopper weight calculating means 45. The average discharge hopper number calculating means 44 calculates the average value of the weighing values (discharge hopper weights) of the hoppers from which the combination has been selected and the objects to be weighed have been discharged, for a plurality of combined weighings. Here, the calculation of the average discharge hopper weight is performed by, for example, a moving average method using time series data of a plurality of past times (20 to 40 times) of combination weighing similarly to the calculation of the average discharge hopper number. .

On the screen of the display means 42, the discharge weight, the average discharge weight, the discharge hopper weight and the average discharge hopper weight are displayed numerically, and the data based on the average discharge hopper weight and the quality of the data are judged. Is displayed together with reference data.

FIG. 6 shows an example of a screen display of the display means 42. In this example, the data based on the average discharge hopper weight is displayed in the bar graph 47, and the bar graph 47 such as “excess”, “proper”, and “insufficient” is displayed.
By displaying the standard data, it is possible to easily determine whether the data based on the average discharge hopper weight is appropriate. Here, the center line in the “appropriate” range indicates the optimum value of the discharge hopper weight. An adjustment key composed of an UP key 48 and a DOWN key 49 is provided on the side of the bar graph 47. The operator operates these keys to reduce the amount of supply to each hopper. It can be changed to adjust the discharge hopper weight. Then, by adjusting the weight of the discharge hopper, the number of discharge hoppers can be adjusted to an appropriate value.

Here, the proper range of the weight of the discharge hopper is 2
The case where the amount is 3.8 g to 29.4 g (optimum value 26.3 g) will be described more specifically by way of example. In this case, in FIG. 6A, the average discharge hopper weight is 24.4 g.
Since the bar graph 47 indicates the appropriate range, it can be understood that the tendency of the discharge hopper weight is appropriate. Next, in FIG. 6B, the average discharge hopper weight is 31.3 g, and the bar graph 47 indicates an excessive range. Therefore, it can be understood that the discharge hopper weight tends to be excessive. Therefore, in this case, by pressing the DOWN key 49 until the bar graph 47 indicates the appropriate range, the supply amount to each hopper is changed, and the discharge hopper weight is adjusted. In this way, adjustment is performed when the weight of the discharge hopper tends to be excessive. In this case, as shown in the figure, it is preferable that the arrow portion of the DOWN key is lit or blinked to indicate an appropriate adjustment procedure to the operator. The entire DOWN key may be turned on or off. Further, in FIG. 6C, the average discharge hopper weight is 20.2 g,
Since the bar graph 47 indicates the shortage range, it can be understood that the discharge hopper weight tends to be short. Therefore, in this case, by pressing the UP key 48 until the bar graph 47 indicates the appropriate range, the supply amount to each hopper is changed, and the number of discharge hoppers is adjusted. In this way, adjustment is performed when the weight of the discharge hopper tends to be insufficient.
Also in this case, as in the case where the discharge hopper weight tends to be excessive, it is preferable that the entire UP key or the arrow part is turned on or blinked to instruct the operator to perform an appropriate adjustment procedure. .

In the case of FIG. 6A, the bar graph 47 indicates an appropriate range, but the operator makes fine adjustments with the UP key 48 so that the discharge hopper weight becomes the optimum value 26. It may be adjusted so as to approach 3 g.

As described above, the operator can use the bar graph 4
7, it is possible to easily grasp whether the tendency of the weight of the discharge hopper is appropriate or excess / insufficient. The supply amount to each hopper is changed according to the tendency, and the weight of the discharge hopper is appropriately adjusted. be able to. In addition, since the adjustment key is lit or blinked according to the tendency of the weight of the discharge hopper to indicate an appropriate adjustment procedure to the operator, even an unskilled operator can easily adjust the weight of the discharge hopper. By adjusting the weight of the discharge hopper, the number of discharge hoppers can be adjusted to an appropriate value.

Next, still another embodiment of the present invention will be described. The remote controller 41 of the combination weighing device according to this embodiment includes an average stable hopper weight calculating means 45. The average stable hopper number calculating means 44 stabilizes, based on the number of hoppers determined to be stabilized by the stability determining means 35 and the measured value of the hopper determined to be stabilized in the plurality of combination weighing operations. The average weight per hopper (average stable hopper weight) of the hopper determined as above is calculated. Here, the calculation of the average stable hopper weight is, for example, similar to the calculation of the average discharge hopper number, for example,
The combination weighing is performed by a moving average method using time-series data for a plurality of past times (20 to 40 times).

On the screen of the display means 42, the discharged weight, the average discharged weight, the stable hopper weight and the average stable hopper weight are displayed by numerical values, and the data based on the average stable hopper weight and the quality of the data are determined. Is displayed together with reference data.

FIG. 7 shows an example of the screen display of the display means 42. In this example, the data based on the average stable hopper weight is displayed in the bar graph 47, and the bar graph 47 such as “excess”, “proper”, and “insufficient” is displayed.
By displaying the standard data, it is possible to easily determine whether the data based on the average stable hopper weight is appropriate or not. Here, the center line in the “appropriate” range indicates the optimum value of the stable hopper weight. An adjustment key composed of an UP key 48 and a DOWN key 49 is provided beside the bar graph 47. By operating these keys, the operator can change the supply amount to each hopper. Thus, the weight of the stable hopper can be adjusted.

Here, the appropriate range of the stable hopper weight is set to 2
The case where the amount is 3.8 g to 29.4 g (optimum value 26.3 g) will be described more specifically by way of example. In this case, in FIG. 7A, the average stable hopper weight is 25.2 g.
Since the bar graph 47 indicates the appropriate range, it can be understood that the tendency of the stable hopper weight is appropriate. Next, in FIG. 7B, the average stable hopper weight is 31.1 g, and the bar graph 47 indicates an excessive range. Therefore, it can be understood that the stable hopper weight tends to be excessive. Therefore, in this case, by pressing the DOWN key 49 until the bar graph 47 indicates the appropriate range, the supply amount to each hopper is changed, and the stable hopper weight is adjusted. In this way, adjustment is performed when the stable hopper weight tends to be excessive. In this case, as shown in the figure, it is preferable that the arrow portion of the DOWN key is lit or blinked to instruct an operator on an appropriate adjustment procedure. The entire DOWN key may be turned on or off. Further, in FIG. 7C, the average stable hopper weight is 19.8 g, and the bar graph 47 indicates the shortage range, so it can be understood that the stable hopper weight tends to be insufficient. Therefore, in this case, by pressing the UP key 48 until the bar graph 47 indicates the appropriate range, the supply amount to each hopper is changed, and the stable hopper weight is adjusted. In this way, adjustment is performed when the weight of the stable hopper tends to be insufficient. Also in this case, as in the case where the weight of the stable hopper tends to be excessive, it is preferable that the entire UP key or the arrow portion is turned on or blinked to instruct the operator to perform an appropriate adjustment procedure. .

In the case of FIG. 7A, the bar graph 47 indicates an appropriate range. However, the operator makes fine adjustments with the UP key 48 so that the stable hopper weight becomes the optimum value of 26. It may be adjusted so as to approach 3 g.

As described above, the operator can use the bar graph 4
7, it is possible to easily grasp whether the tendency of the stable hopper weight is appropriate or excess / insufficient, and to change the supply amount to each hopper according to the tendency to appropriately adjust the stable hopper weight. be able to. In addition, since the adjustment key is lit or flashed according to the tendency of the weight of the stable hopper, an appropriate adjustment procedure is indicated to the operator, so that even an unskilled operator can easily adjust the weight of the stable hopper. By adjusting the weight of the stable hopper, the number of discharge hoppers can be adjusted to an appropriate value.

In the above embodiment, the bar graph and its reference data, the numerical value of the discharged weight, etc., and the participating status of each hopper combination are displayed. It does not necessarily have to be displayed. Also, instead of the bar graph and its reference data, as shown in FIG. 9, data based on the average number of discharge hoppers, data based on the average discharge hopper weight, or data based on the average stable hopper weight is represented by a guideline. It may be displayed together with reference data for judging pass / fail.

[0054]

According to the first aspect of the present invention, since the data based on the average number of discharge hoppers is displayed, it is possible to easily grasp the tendency of the number of discharge hoppers in a plurality of combination weighing operations. Moreover, since the data based on the average number of discharge hoppers and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the number of discharge hoppers is appropriate. it can

According to the second aspect of the invention, the number of discharge hoppers is easily adjusted to an appropriate value by changing the supply amount of the object to be weighed to the hopper while observing the tendency of the number of discharge hoppers as a guide for adjustment. can do.

According to the third aspect of the present invention, since the data based on the average discharge hopper weight is displayed, the tendency of the discharge weight per discharge hopper (discharge hopper weight) in a plurality of combination weighing operations can be easily grasped. can do. Moreover, since the data based on the average discharge hopper weight and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the discharge hopper weight is appropriate. it can.

According to the apparatus of the fourth aspect, the supply amount of the object to be weighed to the hopper is changed while observing the tendency of the discharge hopper weight, which is a guide for adjustment, so that the discharge hopper weight can be easily adjusted to an appropriate value. can do. Then, by adjusting the weight of the discharge hopper, the number of discharge hoppers can be adjusted to an appropriate value.

According to the apparatus of claim 5, since the data based on the average stable hopper weight is displayed, the weight per hopper (stabilized) of the hopper determined to be stabilized in the combination weighing a plurality of times is displayed. Hopper weight) can be easily grasped. Moreover, since the data based on the average stable hopper weight and the reference data for judging the quality of the data are displayed together, it is possible to determine at a glance whether the tendency of the stable hopper weight is appropriate. it can.

According to the apparatus of the sixth aspect, the amount of the object to be weighed is changed to the hopper while observing the tendency of the stable hopper weight, which is a guide for adjustment, and the stable hopper weight is easily adjusted to an appropriate value. can do. The number of discharge hoppers can be adjusted to an appropriate value by adjusting the weight of the stable hopper.

[Brief description of the drawings]

FIG. 1 is a partially cut-away schematic front view showing a combination weighing device according to one embodiment of the present invention.

FIG. 2 is a block diagram showing a control system of the combination weighing device according to one embodiment of the present invention.

FIG. 3 is a block diagram showing a control system of a combination weighing device according to another embodiment of the present invention.

FIG. 4 is a block diagram showing a control system of a combination weighing device according to still another embodiment of the present invention.

FIG. 5 is a diagram showing an example of a display screen of the combination weighing device according to one embodiment of the present invention.

FIG. 6 is a diagram showing an example of a display screen of a combination weighing device according to another embodiment of the present invention.

FIG. 7 is a diagram showing an example of a display screen of a combination weighing device according to still another embodiment of the present invention.

FIG. 8 is a diagram showing an example of a display screen of a conventional combination weighing device.

FIG. 9 is a diagram illustrating another example of a part of the display screen of the combination weighing device according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 Weighing hopper (hopper) 11 Weighing device 12 Booster hopper (hopper) 35 Stability determining means 36 Combination calculating means 41 Remote control unit (remote control) 42 Display means 44 Average discharging hopper number calculating means 45 Average discharging hopper weight calculating means 46 Average stability Hopper weight calculation means 47 Bar graph 48 UP key 49 DOWN key M Weighing object

Claims (6)

[Claims] 1. A combination weighing apparatus for performing a combination operation on weighing values of an object to be weighed supplied to a hopper and selecting a combination within an allowable range, a display means, a combination being selected and the object to be weighed being discharged. Average discharge hopper number calculating means for calculating an average value of a plurality of combination weighings of the number of hoppers, wherein the display means displays data based on the average discharge hopper number and judges the quality of the data. A combination weighing device characterized by displaying standard data for performing the measurement. 2. The supply amount of an object to be weighed to a hopper can be changed in a state in which data based on the average number of discharge hoppers and reference data for judging the quality of the data are displayed. A combination weighing device characterized in that: 3. A combination weighing apparatus for performing a combination operation on weighing values of objects to be weighed supplied to a hopper and selecting a combination falling within an allowable range, comprising: display means; Average discharge hopper weight calculation means for calculating an average discharge weight per hopper based on the weighed value of the discharged hopper, wherein the display means displays data based on the average discharge hopper weight, and A combination weighing device characterized by displaying standard data for judging the quality of data. 4. The supply amount of an object to be weighed to a hopper can be changed in a state where data based on the average discharge hopper weight and reference data for judging the quality of the data are displayed. A combination weighing device characterized in that: 5. A combination weighing apparatus for calculating a combination of weighing values of objects to be weighed supplied to a hopper and selecting a combination within an allowable range, a display means, and whether the weighing value of each hopper is stabilized. A stability determination means for determining whether or not the hopper has been stabilized based on the number of hoppers determined to be stable and the weighed value of the hopper determined to be stable in a plurality of combination weighings. Average stable hopper weight calculating means for calculating the average weight per hopper, wherein the display means displays data based on the average stable hopper weight and also provides reference data for judging the quality of the data. A combination weighing device characterized in that it is also displayed together. 6. The supply amount of the object to be weighed to the hopper can be changed while displaying data based on the average stable hopper weight and reference data for judging the quality of the data. A combination weighing device characterized in that: