JP4080083B2 - Weighing system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a weighing system including a combination weighing device and a weight checker.
[0002]
[Prior art]
Conventionally, there has been a measuring and packaging inspection system in which confectionery such as potato chips is weighed to a predetermined amount with a combination weighing device, then packaged with a vertical pillow packaging machine, and further, a weight checker is used to measure the product weight after packaging. It is known (for example, see JP-A-9-301327). In such a system, a series of processes are performed by a plurality of types of devices, so that it is difficult to grasp which device has a failure when a defective product (NG) occurs. In order to obtain availability and yield, it is necessary to cope early.
Therefore, in the prior art, a processing apparatus in question is grasped from the processing result in each processing apparatus and displayed.
[0003]
[Problems to be solved by the invention]
However, the prior art has a drawback that it cannot fully grasp which processing apparatus has a defect.
Accordingly, an object of the present invention is to provide a weighing system that can make it easy to grasp whether a combination weighing device or a weight checker has a problem.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the weighing system of the present invention inputs the calculated value of the combination of contents and the measured value after weighing the contents after bagging, reads the tendency of the deviation between them, A measuring system including a determining means for determining whether the combination calculated value or the post-measurement value is abnormal and a display for displaying the determined result , wherein the determining means are the same The combination calculated value and the post-measurement value are compared with respect to the content of the item, and the determination is performed based on whether the deviation abnormality outside the allowable range appears continuously or discontinuously. To do.
[0005]
Here, in the present invention, “the difference between the combination calculation value and the post-measurement value” means that the comparison result of the difference or ratio between the combination calculation value and the post-measurement value for the same contents, or the comparison result is It means whether it is within a predetermined tolerance.
Further, the term “displacement tendency” refers to information obtained by combining information about the deviation obtained for a plurality of products. For example, a change in information about the deviation (a concept that takes into account a temporal element regarding the deviation). Including.
[0006]
Principle of the invention
Next, the principle of the present invention will be described.
The combination weighing device calculates a combination calculation value by combining individual measurement values measured by a plurality of measurement heads (weight detectors). Here, since the weighing heads participating in the combination differ for each combination discharge, the combination weighing device randomly generates a good / bad combination calculation value when a defect occurs in one weighing head. For example, as shown in FIG. 4B, when a malfunction occurs in the weighing head of the second machine, good / bad appears randomly depending on whether or not the second machine participates in the combination.
On the other hand, the weight checker measures the weight of the product after the product is completely transferred onto the conveyor while the product is conveyed on the conveyor. Here, the weight checker performs well-known zero point adjustment when there is no product on the conveyor. However, when the number of processing per unit time increases, the zero point adjustment cannot be performed. The measurement error will occur, and a measurement error (abnormal deviation) will occur. In this case, the post-measurement value by the weight checker is continuously poor.
From the above, if large deviations appear continuously in the comparison result between the combination weighing value and the post-weighing value, it can be estimated that a problem has occurred in the weight checker, while if deviations appear discontinuously. It is possible to estimate that a problem has occurred in the combination weighing device.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment.
First, an outline of a weighing and packaging inspection system to which the present invention is applied will be described.
In FIG. 1, 100 is a conveyor, 1 is a combination weighing device, 200 is a bag making and packaging machine (packing machine), 300 is a weight checker, 400 is a seal checker, and 700 is a boxing device. The conveyor 100 drops the contents (items) M that are the objects to be weighed onto the central portion of the dispersion feeder 2 of the combination weighing device 1. Note that several or many contents M are collected and then packed into a product.
[0008]
As shown in FIG. 2, the dispersion feeder 2 and the supply troughs 3i are each vibrated by the drive of the vibration exciter, so that the contents M on the dispersion feeder 2 are arranged in the downstream of the supply troughs 3i. To the pool hopper 4i. Each of these pool hoppers 4i is provided with a gate 5i to temporarily store and store the contents M supplied and received from the supply troughs 3i. A weighing hopper 6i is provided downstream of each pool hopper 4i. Each of these weighing hoppers 6i is provided with a weighing head and a gate 8i provided with a weight detector 7i for detecting the weight of the contents M put into the weighing hopper 6i from the pool hopper 4i. A large collective discharge chute 9 is provided below the gate 8i. As will be described later, the contents M are grouped together by combining the weights of the contents M detected by the respective weight detectors 7i. The contents M are dropped on the bag making and packaging machine 200 of FIG. 1 with the target value or a value close to the target value.
[0009]
The bag making and packaging machine 200 shown in FIG. 1 is a so-called vertical pillow packaging machine, in which a sheet-like film F unwound from a film roll Fr is welded with a vertical sealer 201 to form a cylindrical shape, and falls from above. With the product M filled in the cylindrical film F, the upper end F1 of the content M in the film F is welded (sealed) with the end sealer 202 and cut, and the product M1 is continuously packaged. (For example, refer to Japanese Patent Laid-Open No. 4-28105). The packaged merchandise M1 falls downward and is laid down on the receiving conveyor 302 by the forward fall tool 301 and conveyed. The commodity M1 is conveyed from the receiving conveyor 302 to the weight checker 300.
[0010]
As shown in FIG. 3, the weight checker 300 includes a weight detector 305 such as a load cell that measures the weight of the product M <b> 1, and a conveyor 303 supported on the upper portion of the weight detector 305. As shown in FIG. 1, the weight checker 300 measures and inspects the weight of the product M1 while conveying the product M1 obliquely upward. The product M1 is conveyed from the weight checker 300 to the seal checker 400.
[0011]
The seal checker 400 conveys the product M1 conveyed from the weight checker 300 obliquely upward while pressing it from above with the presser 401, and inspects the packaging bag for sealing failure and the length of the product M1. The sorting apparatus 500 discharges the product M1 received from the seal checker 400 to the outside of the system if it is defective, and transports it downstream if it is a non-defective product, based on each inspection result. The product M1 is transported to the downstream boxing device 700 via a transport device including the sorting device 500 and the alignment transport device 600. The boxing device 700 packs the product M1 in the cardboard box B.
[0012]
Next, combination control of the combination weighing device will be described.
As shown in FIG. 3, each weight detector 7 i outputs the detected weight to the multiplexer 70. The multiplexer 70 outputs each measurement signal to the A / D converter 71 when a predetermined synchronization signal is applied. The A / D converter 71 converts each measurement signal into a measurement value composed of a digital signal, and outputs the measurement value to a combination controller (microcomputer) 10.
[0013]
The combination controller 10 calculates a combination calculation value Wc obtained by combining one or more of the measurement values, compares the combination calculation value Wc with a predetermined combination target value, and the combination calculation value Wc becomes equal to or more than the combination target value. Among the combinations, the combination closest to the combination target value is obtained, the gate 8i in FIG. 2 corresponding to the combination is opened, and the contents M are combined and discharged from the weighing hopper 6i to the collective discharge chute 9.
[0014]
The combination controller 10 includes a CPU 11, a ROM 12 and a RAM 13. The RAM 13 is provided with a first weighing history storage unit 13a. As shown in FIG. 4A, the first weighing history storage unit 13a stores the machine number of the weighing head that participates in the combination and the combination calculated value Wc of the combination in association with each other.
[0015]
Next, the configuration of the main part of the system will be described.
As shown in FIG. 3, the combination controller 10 and the checker control unit 30 are connected to the remote controller 50 via an interface (not shown).
[0016]
The checker controller 30 receives a gravity signal obtained by converting the output from the weight detector 305 into a weight. When the weight signal is stabilized, the checker control unit 30 subtracts the tare weight from the weight signal to calculate the post-weighing value Ws, and when the post-weighing value Ws is larger or smaller than the predetermined weight. Outputs a failure signal to the sorting device 500 (FIG. 1). The sorting device 500 discharges the product M1 out of the system based on the failure signal. On the other hand, the checker control unit 30 outputs the post weighing value Ws to the remote controller 50.
[0017]
The remote controller 50 includes a CPU 51, ROM 52 and RAM 53. The RAM 53 is provided with a second measurement history storage unit 53a, a defect history storage unit 53b, an allowable range storage unit 53c, and a frequency storage unit 53f. The storage content of the first measurement history storage unit 13a of the combination controller 10 and the post-measurement value Ws are transferred (input) to the second measurement history storage unit 53a, and the combination calculation value Wc and the post-measurement value for the same contents are transferred. The measurement value Ws is stored in association with each other.
[0018]
For example, a predetermined tolerance (allowable range) We is stored in the allowable range storage unit 53c of FIG. The CPU 51 of the remote controller 50 constitutes the discriminating means of the present invention, and the weight deviation and tolerance obtained by subtracting the post-weighing value Ws for the same product M1 subjected to the combination from the combination calculated value Wc. Comparison with We is performed. When the absolute value of the weight deviation is larger than the tolerance We, the CPU 51 determines that the deviation is abnormal (deviation error) and stores the combination in the defect history storage unit 53b as shown in FIG. 4C. The machine number of the weighing head that participated in is stored.
[0019]
The number-of-times storage unit 53f stores a predetermined value K serving as a reference for determining whether or not it is continuous. The CPU 51 of FIG. 3 is provided with a counter 51a described later.
[0020]
A touch screen 54 is connected to the combination controller 10 via an interface (not shown). The touch screen 54 has, for example, a liquid crystal display, and displays various messages as shown in the display screen of FIG.
[0021]
Next, an example of the principle and operation for identifying a defective machine will be described.
As shown in FIG. 4C, for example, when a deviation abnormality occurs in the “first time”, “third time”, and “fourth time”, the deviation abnormality appears discontinuously. It is determined that there is an abnormality. Further, from the result of “first time”, it can be determined that any one of the first, second, third machines may not be normal. Based on the determination result, as shown in FIG. 5A, a content such as “Is there any abnormality in any of No. 1, 2 and 3 of the weighing hopper?” Is displayed on the touch screen 54.
[0022]
Next, from the results of “first time” and “third time” that were the above-described deviation abnormality in FIG. 4B, any one of the machine numbers “No. 2 and 3” common to the two weighing results is abnormal. It can be determined that there is. Based on the determination result, as shown in FIG. 5 (b), contents such as “Is there any abnormality in any of No. 2 and 3 of the weighing hopper?” Are displayed on the touch screen 54. Further, from the measurement results of “first time”, “third time”, and “fourth time” in FIG. 4C, it is possible to determine that the common machine number “No. 2” is abnormal. Based on the determination result, as shown in FIG. 5C, contents such as “Is there any abnormality in the second weighing hopper?” Are displayed on the touch screen 54.
In this way, the CPU 51 specifies and outputs the hopper number that may be abnormal based on the information about the hopper number machines that participated in the combination when the deviation is abnormal.
[0023]
In the present embodiment, as described below, the abnormal device is determined depending on whether the deviation abnormality appears continuously or discontinuously.
The operation of the CPU 51 (discriminating means) will be described using the flowchart of FIG.
When the discrimination mode starts, the count counter 51a (FIG. 3) is cleared to 0 in step S1, and the process proceeds to step S2. In step S2, the CPU 51 associates the calculated calculated value Wc, the machine number of the weighing head that participates in the combination, and the post-weighing value Ws of the same product M1 that has performed the combination with each other, and stores them in the second weighing history storage unit 53a. . On the other hand, the CPU 51 calculates the weight deviation and proceeds to step S3.
[0024]
In step S3, the CPU 51 compares the weight deviation with the tolerance We, and if it is determined that the deviation is abnormal, the process proceeds to step S4. On the other hand, if the deviation is not abnormal, the process returns to step S1. In step S4, CPU51 memorize | stores the machine number of the measurement head which participated in the said combination in the defect log | history memory | storage part 53b, and progresses to step S5.
[0025]
In step S5, the counter 51a is incremented and the process proceeds to step S6. In step S6, the value of the count counter 51a is compared with a predetermined value K. When the value of the counting counter 51a is equal to or greater than the predetermined value K, the deviation abnormality continues for a predetermined number of times (the deviation abnormality appears continuously), and therefore there is a possibility that the weight checker 300 is abnormal. It discriminate | determines and progresses to step S7. On the other hand, if the value is smaller than the predetermined value K, the process returns to step S2. In step S 7, as shown in FIG. 5D, the content “Is there any abnormality in the weight checker?” Is displayed on the touch screen 54.
[0026]
1, 2 and FIGS. 7 to 10 show a second embodiment.
In the first embodiment, the abnormal device is determined based on whether or not the deviation abnormality continuously appears. However, in the second embodiment, from the value obtained by averaging information on a large number of deviations, etc. Make a decision.
In FIG. 7, the checker control unit 30 includes a microcomputer 35, a weight detection circuit 306, a product detection circuit 307, and a motor control circuit 309. The weight detection circuit 306 and the motor control circuit 309 are connected to the microcomputer 35 via an interface (not shown). The weight detection circuit 306 is connected to the weight detector 305 and receives a weighing signal from the weight detector 305.
[0027]
The product detection circuit 307 is connected to a product detector 308. The commodity detector 308 is composed of, for example, a light detector, and is provided between the conveyor 303 and the receiving conveyor 302 as shown in FIG. When the product detector 308 detects the product M 1, the product detection circuit 307 in FIG. 7 outputs a product detection signal to the weight detection circuit 306. Based on the product detection signal, the weight detection circuit 306 outputs a weight signal obtained by removing the vibration component from the measurement signal to the microcomputer 35 at a predetermined timing.
[0028]
On the other hand, when the weighing signal from the weight detector 305 falls below a predetermined reference voltage, that is, when the conveyor 303 is empty, the weight detection circuit 306 outputs a zero point signal consisting of the weighing signal to the microcomputer 35. To do. By subtracting the zero point signal and the tare weight from the weight signal, a post-weighing value Ws that is the net weight of the product M1 is obtained.
A motor control circuit 309 controls a drive motor (not shown) of the conveyor 303 and the like.
[0029]
The RAM 33 of the microcomputer 35 is provided with a pass reference value storage unit 33a and a zero point weight storage unit 33e. The acceptance standard value storage unit 33a stores a acceptance standard value that is a criterion for acceptance of the product M1 (generally, it is stored in an allowable range that is a criterion for acceptance). The CPU 31 of the checker control unit 30 compares the post-weighing value Ws with the acceptance standard value, and determines that the product M1 is acceptable if the post-measurement value Ws is within the acceptance standard value. On the other hand, if the CPU 31 determines that the product M1 is unacceptable, the CPU 31 outputs a sorting signal to the sorting device 500 to discharge the defective product M1 out of the system. The zero point weight storage unit 33e updates and stores the current and previous zero point weights.
[0030]
The CPU 31 of the checker control unit 30 includes weighing means 31a and zero point adjusting means 31d.
The weighing means 31a of the CPU 51 subtracts the zero point signal from the weight signal output from the weight detection circuit 306, and further subtracts a predetermined tare weight from the weight to calculate the post-weighing value Ws. The zero point adjusting means 31d performs well-known zero point adjustment (for example, Japanese Utility Model Publication No. 3-32985, column 6, line 39 to column 7, line 6).
[0031]
The RAM 55 of the remote controller 50 is provided with a weight history storage unit 55b, an average value storage unit 55c, and an allowable value storage unit 55d.
As shown in FIG. 8, in the weight history storage unit 55b, a combination calculated value Wc obtained by weighing from the previous one to the previous n times among the products M1 determined to be acceptable is stored. The weight history storage unit 55b stores a post-weighing value Ws corresponding to each combination calculated value Wc (a product M1 that is packaged with the same contents M discharged from the combination). The calculated combination value Wc and the post-weighing value Ws are input to the remote controller 50 from the combination controller 10 and the checker control unit 30 each time weighing is performed, and updated and stored in the weight history storage unit 55b.
[0032]
The CPU 51 calculates a combination average value Wa and a post-measurement average value Wb obtained by averaging the combination calculation value Wc and the post-measurement value Ws for n times stored in the weight history storage unit 55b of FIG. The average value storage unit 55c stores the combination average value Wa and the post-measurement average value Wb. A tolerance value Wp described later is stored in the tolerance value storage unit 55d of FIG.
[0033]
The CPU 51 of the remote controller 50 constitutes the discriminating means of the present invention, which obtains a combination average value Wa and a post-weighing average value Wb and subtracts the post-measuring average value Wb from the obtained combination average value Wa to obtain a measurement deviation. (Wa-Wb) is calculated. Further, the CPU 51 compares the measurement deviation (Wa−Wb) with the allowable value Wp, and determines whether or not there is a possibility that a zero point defect has occurred based on the comparison result.
Further, the CPU 51 compares the result of the zero point adjustment with the measurement deviation (Wa−Wb) to determine whether or not the zero point is defective.
[0034]
When the combination controller 10 receives a pause signal, which will be described later, from the remote controller 50, the combination controller 10 causes the combination weighing device 1 to pause the combination discharge of the contents M for one time. The remaining configuration of the second embodiment is the same as that of the first embodiment, and the same reference numerals are given to the same or corresponding portions, and detailed description thereof is omitted.
[0035]
Next, an example of the principle and operation of the present invention will be described.
As shown in FIG. 8, a combination average value Wa is calculated for the combination calculation value Wc for n times of the most recently weighed contents M among the products M1 that have been checked for proper weight by the weight checker 300. A post-measurement average value Wb is calculated for the post-measurement value Ws of the same content M as the content M for which the combination calculation has been performed. Next, the post-measurement average value Wb is subtracted from the combination average value Wa to calculate the measurement deviation (Wa-Wb).
Here, since the two average values Wa and Wb are average values obtained by measuring the weights of the same contents M, they should be consistent with each other. Therefore, when the weighing deviation (Wa−Wb) is compared with a predetermined allowable value Wp and the weighing deviation (Wa−Wb) exceeds the allowable value Wp, there is a possibility that the zero point defect has occurred in the weight checker 300. It can be determined that there is.
[0036]
Next, the zero point adjustment mode will be described with reference to the flowchart of FIG.
In step S11, the CPU 51 calculates a measurement deviation (Wa-Wb) by subtracting the post-measurement average value Wb from the combination average value Wa, and further calculates an absolute value of the deviation. Subsequently, the CPU 51 reads the allowable value Wp from the allowable value storage unit 55d, and compares the absolute value of the measurement deviation (Wa−Wb) with the allowable value Wp. Further, when the absolute value of the weighing deviation (Wa−Wb) is larger than the allowable value Wp, the CPU 51 determines that there is a possibility that a zero point defect has occurred in the weight checker 300, and proceeds to step S12. On the other hand, if the absolute value of the weighing deviation (Wa-Wb) is less than or equal to the allowable value Wp, the process returns to step S11.
[0037]
In step S12, the checker control unit 30 is caused to perform zero point adjustment. That is, when the CPU 51 outputs a pause signal to the combination controller 10, the combination weighing device 1 in FIG. 1 pauses the combination discharge of the contents M for one time. At the same time, the bag making and packaging machine 200 also stops the packaging operation. Accordingly, the delivery of the product M1 to the weight checker 300 is delayed, and after a few seconds, an empty state in which the product M1 indicated by the broken line in FIG. At this time, the CPU 51 in FIG. 7 calculates a new zero point weight based on the zero point signal of the empty conveyor 303, and updates and stores the new zero point weight in the zero point weight storage unit 33e. Perform zero point adjustment.
[0038]
Following the zero point adjustment in step S12 of FIG. 9, the process proceeds to step S13. In step S13, the CPU 51 reads the current zero point weight and the previous zero point weight from the zero point weight storage unit 33e, subtracts the previous zero point weight from the new zero point weight calculated this time to obtain the fluctuation value Wo, and step S14. Proceed to In step S14, the CPU 51 determines whether or not the value obtained by subtracting the fluctuation value Wo from the measurement deviation (Wa−Wb) is within the allowable value Wp.
[0039]
Here, if a zero point defect has occurred, the post-measurement average value Wb should have fluctuated by the fluctuation value Wo, so that the fluctuation value Wo and the value of the measurement deviation (Wa−Wb) are essentially the same. It should be. Therefore, when the result of subtracting the fluctuation value Wo from the measurement deviation (Wa−Wb) is within the allowable value Wp, it can be determined that the zero point defect has occurred. On the other hand, if the subtraction result exceeds the allowable value Wp, it can be determined that there is a possibility that the combination weighing apparatus 1 is not defective and that there is a possibility that an abnormality has occurred. Therefore, when the subtraction result is smaller than the allowable value Wp, the CPU 51 determines that a zero point defect has occurred, and proceeds to step S15. On the other hand, when the subtraction result is equal to or greater than the allowable value Wp, the CPU 51 determines that there is a possibility that the combination weighing device 1 is abnormal, and proceeds to step S16.
[0040]
In step S15, the CPU 51 displays on the touch screen 55 the contents such as “We performed the zero check of the weight checker.” And the time at which the zero adjustment was performed, the fluctuation value Wo, etc. Store in the storage unit. In step S <b> 16, the CPU 51 displays a content such as “Is there any abnormality in the combination weighing device?” On the touch screen 55.
[0041]
FIG. 11 shows a discrimination method according to a modification.
The RAM 55 of the remote controller 50 is provided with a deviation history storage unit 55f. The deviation history storage unit 55f stores a deviation Wd obtained by subtracting the post-measurement value Ws from the combination calculation value Wc for the same contents. The CPU 51 of the remote controller 50 obtains the deviation Wd _i from the two values Wc _i and Ws _i and stores it in the RAM 55. Further, the CPU 51 determines whether or not the deviations Wd _{n to} Wd _1, that is, “deviation” for n times are continued in a similar tendency. As a determination method, for example, the following equations (1) and (2) are used.
Wd ₁ ≦ Wd ₂ ≦ …… ≦ Wd _n (1)
Wd ₁ ≧ Wd ₂ ≧ …… ≧ Wd _n (2)
[0042]
That is, generally, since the fluctuation of the zero point of the weight checker gradually increases with time, the deviation Wd _i stored in the deviation history storage unit 55f gradually increases or decreases as shown in FIG. If there is (if either (1) or (2) is satisfied), the CPU 51 determines that there is a deviation abnormality in the zero point fluctuation of the weight checker 300.
On the other hand, when the deviation Wd _i stored in the deviation history storage unit 55f is increasing or decreasing randomly as shown in FIG. 11B, neither of the expressions (1) and (2) is satisfied. In this case, the CPU 51 determines that there is another cause of deviation abnormality.
[0043]
In each of the above embodiments, the remote controller 50 is provided separately from the combination controller 10 and the checker control unit 30. However, in the present invention, the function of the remote controller 50 may be provided in the combination controller 10 or the checker control unit 30. Good. In the embodiment, the deviation is obtained by subtracting the post-measurement value Ws from the combination calculation value Wc, and it is determined whether or not the deviation is abnormal. In the present invention, the combination calculation value Wc is determined as the post-measurement value. Dividing by Ws may determine whether or not a deviation error has occurred depending on whether the ratio is within a predetermined range.
[0044]
【The invention's effect】
As described above, according to the present invention, based on the tendency of deviation between the combination calculated value and the post-measurement value, it is determined and displayed whether there is an abnormality in the combination calculation value or the post-measurement value. It becomes easy to grasp which of the combination weighing device or the weight checker is defective. Therefore, the operating rate and yield of the entire system are improved.
In particular, the determination rows Unode depending the comparison result of the combination weighing value and the rear weight value tolerance deviation abnormality continuously appear or discontinuously appearing an off-, whether a defect in any of the device has occurred It can be quickly and accurately grasped.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a weighing and packaging inspection system according to a first embodiment of the present invention.
FIG. 2 is a conceptual diagram showing functions of a combination weighing device.
FIG. 3 is a schematic configuration diagram showing a main part of the first embodiment.
FIG. 4 is a chart showing storage contents of a weighing history storage unit and a defect history storage unit.
FIG. 5 is a front view showing a display screen of a touch screen.
FIG. 6 is a flowchart showing the operation of a CPU.
FIG. 7 is a schematic configuration diagram showing a main part of a second embodiment.
FIG. 8 is a chart showing storage contents of a weight history storage unit and an average value storage unit.
FIG. 9 is a flowchart showing the operation of the CPU.
FIG. 10 is a schematic side view showing a weight checker during zero point adjustment.
FIG. 11 is a conceptual diagram illustrating contents of a storage unit according to a modification.
[Explanation of symbols]
1: Combination weighing apparatus 300: Weight checker 51: CPU (discriminating means)
54: Touch screen (display)

Claims (4)

Input the combined value of the contents and the measured value after weighing after packing the contents, read the tendency of the deviation between them, and based on that, either the calculated value of the combination or the post-measured value is abnormal Determining means for determining whether there is,
A weighing system provided with a display for displaying the determined result ,
The discriminating means compares the combination calculated value and the post-weighed value for the same content, and determines whether the discrepancy abnormality in which the comparison result of both of them is out of the allowable range appears continuously or discontinuously. Do the weighing system. A combination weighing device that outputs a combination calculation value in which the contents become a predetermined amount;
A weight checker that outputs a measured value after weighing the contents after bagging ;
Discrimination means for inputting the information of the combination calculation value and the post-weighing value for the same content, reading the tendency of the deviation between the two, and determining whether there is an abnormality in the combination weighing device or the weight checker based on it When,
A weighing system provided with a display for displaying the determined result ,
The discriminating means compares the combination calculated value and the post-weighed value for the same content, and determines whether the discrepancy abnormality in which the comparison result of both of them is out of the allowable range appears continuously or discontinuously. Do the weighing system. In claim 2 ,
A weighing system that determines that a zero error of the weight checker occurs when the deviation abnormality appears continuously, and determines that a specific head of the combination weighing device is abnormal when the deviation abnormality appears discontinuously. A combination weighing device that outputs a combination calculation value in which the contents become a predetermined amount;
A weight checker that outputs a measured value after weighing the contents after bagging ;
Discrimination means for inputting the information of the combination calculation value and the post-weighing value for the same content, reading the tendency of the deviation between the two, and determining whether there is an abnormality in the combination weighing device or the weight checker based on it When,
A weighing system provided with a display for displaying the determined result ,
The discriminator means that when the deviation between the combination calculation value and the post-measurement value for the same contents continues continuously with the same tendency, the deviation is caused by the zero point fluctuation of the weight checker. Weighing system that distinguishes

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