JP2542138Y2 - Aggregation recorder for combination weighers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a tally recording device that tally records the operating state of a combination weigher.

2. Description of the Related Art As is well known, a combination weigher repeatedly discharges articles whose total weight is equal to or close to a target weight, but it is necessary to know the operating state of the combination weigher. Therefore, when a counting instruction is given, every time an article is ejected thereafter, the weight of the ejected article is integrated, the number of ejections is counted, and when the number of ejections reaches a preset number, the integration is performed. The weight value is divided by a preset number of discharges to obtain an average discharge weight, and the integrated weight value, the number of discharges, the average discharge weight, and the like are printed. Further, the above-described totalization is performed every time a predetermined time elapses.

[Problem to be Solved by the Invention] However, in the above-described totaling, only the operating state of the combination weigher for a predetermined number of times from the point in time when the totaling instruction is given, or the operating state for a predetermined number of times every elapse of a certain time period can be determined. That is, there is a problem that only the sampling inspection is performed.

An object of the present invention is to provide a tally recording device for a combination weigher which has solved the above-mentioned problems.

[Means for Solving the Problems] In order to achieve the above object, the present invention receives supplies of goods, weighs these goods, variously combines the measured values of these goods, and selects from among these combinations. An operation of selecting a combination whose total weight is equal to or close to a predetermined target weight, and discharging each of the articles constituting the selected combination,
In a combination weigher that starts when a start signal is supplied and stops the above operation when a stop signal is supplied,
After the start signal is supplied to the combination weigher, each time the selected articles are discharged, the discharge frequency counting means for increasing the count value by one, and the start signal is supplied to the combination weigher. After that, every time the selected articles are discharged, the cumulative weight calculating means for accumulating the total weight of the discharged articles, the output of the cumulative weight calculating means, and the output of the discharging number coefficient means Every time the average value is calculated, the average value calculating means for calculating the average value of the total weight of the discharged articles using these outputs, and when the stop signal is supplied to the combination weigher, at least the average value calculating means A storage unit for storing the average value of the total weight of each of the discharged articles in a designated area of the plurality of areas, and when an output command is supplied, each of the discharged articles stored in each of the upper areas is stored. And output means for outputting an average value of the total weight of the article, respectively, is intended to comprise.

[Operation] According to the present invention, after the start signal is supplied to the combination weigher, each time an article is ejected from the combination weigher, the total weight of each selected article is accumulated, and the number of times the selected article is ejected. And the average value of the total weight of each selected article is calculated. This continues until a stop signal is supplied. Therefore, when the stop signal is supplied, the average value of the total weight of the selected articles from when the start signal is supplied to when the stop signal is supplied is calculated. Then, in response to the supply of the stop signal, the calculated average value of the total weight of each selected article is stored in a designated area among a plurality of areas prepared in advance. . The average value of the total weight of the selected articles in various periods from when the start signal is supplied to when the stop signal is supplied, which is stored in each of these storage areas, when an output command is supplied, Output by the output means.

[Embodiment] FIGS. 1 to 6 show a first embodiment. This embodiment has a plurality of scales 2 as shown in FIG. 4, each of which is provided with a load cell 4. When an article is supplied to each weighing device 2, each load cell 4 generates an analog weighing signal proportional to its weight, and these analog weighing signals are converted into digital weighing signals by the A / D converter 6, respectively. Supplied to CPU8. When the start signal is supplied from the keyboard 9, the CPU 8
Various digital weighing signals are combined in various ways in accordance with the program stored in the ROM 10, a combination equal to or close to a preset target weight is selected from these combinations, and articles constituting the selected combination are stored. The drive unit 14 opens the discharge gate 12 of the measuring device 2 so that the drive unit 14 opens.
To the control signal. The CPU 8 supplies a control signal to the driving unit 14 so that the articles are supplied from the supply device (not shown) to the weighing device 2 that has been emptied by discharging the articles. The CPU 8 supplies a control signal to the drive unit 14 so that the article is supplied in this manner. When the article is supplied in this way, the above-described operation is repeated. When the discharge is performed, the display unit 16 displays which measuring device 2 discharges the article and what the discharged weight is.

In addition to the above programs, the CPU 8 executes the programs shown in the flowchart in FIG. 1 every time a predetermined time elapses. That is, first, it is determined whether weight data (total weight of articles discharged from the combination weigher) has been input (step S2).
If the answer is YES, a total for one day is calculated (step S
Four). Following this, a total for one week is calculated (step S
6).

The total for one day in step S4 is as shown in FIG.
The input weight data WT is used to calculate the emission weight for one day.
It is accumulated by WTdn (step S8), and the value of Ndn for counting the number of discharges for one day is advanced by one (step S10). And
平均 Divide the value of WTdn by the value of Ndn to determine the average discharge weight AVEdn (step S12). Therefore, at the end of the day's operation, the value of ΣWTdn represents the total weight of the articles discharged from the combination weigher during the day, and the value of Ndn represents the number of articles from the combination weigher during the day. AVEdn
Represents the average value of the discharged weight of the articles discharged from the combination weigher during one day.

By the way, it is rare for the combination weigher to discharge the same article with the same target weight all day,
Even for the same article, the target weight may be changed, and the operating state of the combination weigher changes accordingly. For example, the supply amount of the article from the supply device to the weighing device 2 or the discharge gate 12
Opening and closing times are different. Therefore, in the combination weigher, the supply amount of the articles from each supply device to the measuring device 2 and the opening / closing time of the discharge gate 12 corresponding to each operation state according to the type and the target weight of each article are programmed in the RAM 15 or the like in advance. A program number corresponding to the type and target weight of the discharged article is read out, and the supply amount from the supply device and the opening / closing time of the discharge gate are determined. Accordingly, accurate tallying cannot be performed unless the tallying of the day is actually performed for each program No., so that the one-day tallying process shown in the flowchart of FIG. Each WTdn, Ndn, and AVEdn are also counted for one day in the RAM 15 for each program No. as shown in FIG.
15a.

In the one-week totaling process in step S6, as shown in FIG. 3, the input weight data WT is accumulated by ΔWTwn for discharge weight integration for one week (step S14), and the number of discharges for one week is further increased. Increment the value of Nwn for counting by 1 (step S1
6). Then, the average discharge weight AVEdn is obtained by dividing the value of ΣWTwn by the value of Nwn (step S18). This is also performed for each program No., and ΣWTwn, Nwn, and AVEdn are also stored in the total data area 15b for one week in the RAM 15 for each program No. as shown in FIG.

Subsequent to step S6, or when the answer to step S2 is NO, it is determined whether or not the one-day total printing key of the keyboard 9 is ON (step S20). For example, a totaling result for one day as shown in FIG. 6 is printed (step S22). Then, the one-day total data area 15a in the RAM 15 is cleared (step S24). If the answer in step S20 is NO, it is determined whether the one-week tally print key on the keyboard 9 is on (step S26). If this answer is YES, the tally result for one week is printed on the printer 18th. Is printed for each program No. (step S28), and RAM1
Clear the total data area 15b for one week in 5 (step
S30), terminate this program. Also, if the answer to step S26 is NO, this program is terminated.

A second embodiment is shown in FIG. 7 and FIG. In this embodiment, the total for one day is subdivided for each start and stop of the combination weigher. That is, as shown in FIG. 7, it is first determined whether the start key of the keyboard 9 is on (step S32). If the answer is YES, the start time is stored in a predetermined area in the RAM 15 (step S3).
4), the start flag ST is set to 1 (step S36). Next, the input weight data WT is accumulated by ΔWTdn for integrating the discharged weight (step S8), and the value of Ndn for counting the number of discharges is advanced by 1 (step S10). Then, set the value of dnWTdn to N
The average discharge weight AVEdn is obtained by dividing by the value of dn (step S12). Next, it is determined whether or not the stop key of the keyboard 9 is turned on (step S38). If the answer is NO,
Terminate this program.

After a predetermined time has elapsed, this program is executed again. At this time, the answer to step S32 is NO, and it is determined whether the start flag ST is 1 (step S40). Since this answer is YES, steps S8, 10, 12, and 38 are executed. Then, if the answer to step S38 is NO, this program ends. Thereafter, the same operation is performed, the stop key is turned on, and if the answer to step S38 is YES, the stop time, ΣWTdn, Ndn, AVEdn, and the program number are stored in the above-mentioned predetermined area (step S42), and the start flag ST Is cleared (step S44), and this program ends.

After performing the one-day totaling process in this way, when one-day total data printing is performed in step S22 in FIG. 1, for example, as shown in FIG. 8, the discharge between the start time and the stop time is performed. The number of times, the total value of the discharged weight, and the average value of the discharged weight are printed.

In the above-described embodiment, the counting is performed from the start to the stop of the combination weigher, but the counting may be performed for a certain period of time. In that case, step S3 in FIG.
2 is changed to the determination of the aggregation start time, step S34 is changed to the storage of the aggregation start time, step S38 is changed to the determination of the aggregation end time, and the storage of the stop time in step S42 is stored as the aggregation end time. Should be changed to FIG. 9 shows a printing example in this case.

FIG. 10 shows a third embodiment. Also in this embodiment, the number N of the articles discharged from the combination weigher and the total weight ΣWT of the articles discharged from the combination weigher are obtained and stored. In addition to this, the time, date, target weight, Program No., a flag indicating whether the combination weigher is in the start state or the stop state when these are stored, and the number of times that the total weight has exceeded the target weight and the combination was not obtained by the time when the combination weigher was stored The number of times and the like are stored. These are stored in the RAM 15 as shown in FIG. 10, but the storage area is changed to a different area each time the program number or the state of the flag is changed, that is, each time the parameter is changed. Is done. Then, various classifications and aggregations are performed using the storage values of these storage areas.

For example, paying attention to the change of the start / stop flag, Is required. Further, the production amount for each product type can be known by adding .DELTA.WT between those having the same program number. These tabulation results are printed on the
Is printed by As parameters, in addition to the above parameters, a worker in charge of the combination weigher, a date, a shift of the worker of the combination weigher, and the like can also be used.

In each of the above embodiments, the tallying result is printed by the printing device 18, but the tallying result may be displayed on the display unit 16. In the first and second embodiments, the average discharged weight is calculated, but in some cases, the average discharged weight is unnecessary.

[Effects of the Invention] As described above, according to the present invention, every time the combination weigher starts and stops repeatedly, the average value of the total weight of each selected article for each period from start to stop Is stored in each storage area of the storage means. Then, the average value of the total weight of these selected articles is output by the output means. For example, even if the same target weight is set for the combination weigher and the combination weigher is operated, the number of weighing devices constituting the combination changes, or the average value of the total weight of the selected articles changes. I do. This is partly due to a change in the supply of articles to the combination weigher.
For example, if the article is like potato chips, a large number of individual potato chips may be supplied, or a small number of small potato chips may be supplied. Sometimes.
In a situation where many small items are supplied,
The weight of the potato chips supplied to each weighing machine increases. At this time, for example, in the normal state, a combination close to the target weight is obtained by four weighing devices, but a combination close to the target weight is obtained on average by three units. As the number of scales participating in the combination decreases, the accuracy of the total weight of the individual selected articles relative to the target weight decreases. The same occurs when a large number of items are supplied. Therefore, the average value of the total weight of the selected articles is obtained for each period from the start to the stop, and by observing the change in the average value of the total weight of these selected articles, the same target weight is set. Even when the combination weigher is stopped, the supply amount of the articles supplied to the combination weigher is adjusted so that the average value of the total weight of the selected articles can approach the target weight while the combination weigher is stopped. can do.

[Brief description of the drawings]

FIG. 1 is a schematic flowchart of a first embodiment of the present invention,
FIG. 2 is a flowchart of one-day tallying process of the first embodiment, FIG. 3 is a flowchart of one-week tallying process of the first embodiment, and FIG. 4 is a first embodiment of the same. FIG. 5 is a diagram showing the contents of the RAM used in the first embodiment, FIG. 6 is a diagram showing an example of printing according to the first embodiment, and FIG. FIG. 8 is a flowchart of a totaling process for one day of the embodiment, FIG. 8 is a diagram showing a printing example of the second embodiment, FIG. 9 is a diagram showing a printing example of a modification of the second embodiment, FIG. 10 is a diagram showing the contents stored in the RAM of the third embodiment. 2 ... Measuring device, 8 ... CPU, 18 ... Printing device.

Claims (1)

(57) [Scope of request for utility model registration] Claims: 1. Receive a supply of goods, weigh these goods,
The weighing values of these articles are variously combined, a combination whose total weight is equal to or close to a predetermined target weight is selected from each of the combinations, and the operation of discharging each article constituting the selected combination is started. In a combination weigher that starts when a signal is supplied and stops the above operation when a stop signal is supplied, after the start signal is supplied to the combination weigher, the article constituting the selected combination is Every time the combination weigher is discharged, the number-of-discharges counting means for increasing the count value by one, and after the start signal is supplied to the combination weigher, the articles constituting the selected combination are removed from the combination weigher. An accumulated weight calculating means for accumulating the total weight of the ejected articles every time the articles are ejected; an output of the accumulated weight calculating means; Each time the output of the stage changes, an average value calculating means for calculating an average value of the total weight of the articles constituting the selected combination using these outputs, and the stop signal is supplied to the combination weigher. A storage means for storing at least an average value of the total weight of the articles constituting the selected combination of the average value calculation means in a designated area of a plurality of areas; and Output means for respectively outputting an average value of the total weight of the selected articles stored in the respective areas, and a total recording apparatus for a combination weigher.