JPH0210887B2 - - Google Patents
Info
- Publication number
- JPH0210887B2 JPH0210887B2 JP5154782A JP5154782A JPH0210887B2 JP H0210887 B2 JPH0210887 B2 JP H0210887B2 JP 5154782 A JP5154782 A JP 5154782A JP 5154782 A JP5154782 A JP 5154782A JP H0210887 B2 JPH0210887 B2 JP H0210887B2
- Authority
- JP
- Japan
- Prior art keywords
- generates
- circuit
- logic circuit
- output signal
- containers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005303 weighing Methods 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004260 weight control Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 description 12
- 238000005070 sampling Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/42—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight for counting by weighing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Description
【発明の詳細な説明】
この発明は、一定重量ずつ例えば粉体等の品物
を容器に充填する装置において、実際の充填重量
が基準重量になるように制御する制御装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for controlling an actual filling weight to a reference weight in an apparatus for filling a container with a constant weight of an article such as a powder.
従来、充填された容器内の品物の重量を順次計
量し、これら計量値の平均値を求め、この平均値
と基準重量との偏差に基づいて充填量の制御が行
なわれている。平均値を求めるためには、先ず何
個かの充填ずみ容器内の品物を計量するかを決定
しなければならない。この計量する容器の個数
を、以下サンプル数という。サンプル数は、通常
品物の重量値が計量機自体に発生する振動等の外
乱の影響を受けて振動的になつても外乱の影響を
無視できるように充分に大きな数に選択されてい
た。しかし、サンプル数を多くすると、充填量を
制御しようとした場合、修正応答が遅くなつてい
た。そのため、わずかしか品物の重量が変化しな
い比較的安定な状態では問題は生じないが、環境
変化の激しい状態、例えば始業直後においては品
物の種類によつては密度変化が激しく、一定体積
の充填を行なつても品物の重量変化率が大きいの
で修正制御が問に合わないという問題があつた。 Conventionally, the weight of filled items in a container is sequentially weighed, the average value of these measured values is determined, and the filling amount is controlled based on the deviation between this average value and a reference weight. To determine the average value, it must first be determined how many filled containers are to be weighed. The number of containers to be weighed is hereinafter referred to as the number of samples. The number of samples was selected to be large enough so that even if the weight value of the item becomes vibratory due to the influence of disturbances such as vibrations generated in the weighing machine itself, the influence of the disturbances can be ignored. However, when the number of samples was increased, the correction response became slower when trying to control the filling amount. Therefore, this problem does not occur in relatively stable conditions where the weight of the items changes only slightly, but in conditions where the environment changes rapidly, for example immediately after the start of work, the density of some items may change drastically depending on the type of item, making it difficult to fill a constant volume. Even if this was done, there was a problem that the rate of change in weight of the item was so large that corrective control was not suitable.
この発明は、上記の問題を解決することを目的
とし、偏差の生じている状態を検出、評価して、
この評価に応じてサンプル数を増減させるもので
ある。 The purpose of this invention is to solve the above problem by detecting and evaluating the state where deviation occurs, and
The number of samples is increased or decreased depending on this evaluation.
すなわち、充填重量の基準重量に対する偏差の
変化は第１図(i)に実線で示すような単調増加型、
または同図(i)に点線で示すような単調減少型、同
図(ii)に実線で示すような同一極性型、同図(iii)に実
線で示すような振動型があり、単調増加または減
少型の場合、サンプル数は小さい方が追従特性が
良くなり、振動型の場合、サンプル数が小さけれ
ば発振する可能性が生じるので、大きい方が適し
ている。そこで、サンプル数Ｎをｎ等分し、各平
均値をW1，W2…Woとし、これらの平均値と基
準重量との差が全て同一極性であり、かつ順に増
加している場合には単調増加型と判断し、これら
の平均値と基準重量との差が全て同一極性であ
り、かつ順に減少している場合には単調減少型と
判断し、各平均値と基準重量との差が同一極性で
ありその値の変化に規則性がない場合には同一極
性型と判断し、これらの平均値と基準重量との差
が正負両極性に跨つておりかつその変化に増加ま
たは減少の規則性がない場合には振動型と判断す
る。そして、単調増加または単調減少型の場合、
サンプル数を小さくし、振動型の場合、サンプル
数を増加させている。 In other words, the change in the deviation of the filled weight from the reference weight is a monotonically increasing type as shown by the solid line in Figure 1 (i).
Alternatively, there are monotonically decreasing types as shown by the dotted lines in (i) of the same figure, same polarity types as shown by the solid lines in (ii) of the same figure, oscillating types as shown by the solid lines in (iii) of the same figure, and monotonically increasing or In the case of a decreasing type, the smaller the number of samples, the better the follow-up characteristics will be, and in the case of the vibration type, the smaller the number of samples, the possibility of oscillation will occur, so a larger number is suitable. Therefore, the number of samples N is divided into n equal parts, and each average value is defined as W 1 , W 2 ...W o , and if the differences between these average values and the reference weight are all of the same polarity and increasing in order, then is determined to be a monotonically increasing type, and if the differences between these average values and the reference weight are all of the same polarity and are decreasing in order, it is determined to be a monotonically decreasing type, and the difference between each average value and the reference weight is determined to be a monotonically increasing type. If they have the same polarity and there is no regularity in the changes in their values, it is considered to be of the same polarity type, and if the difference between these average values and the reference weight spans both positive and negative polarities, and the change indicates an increase or decrease. If there is no regularity, it is determined to be a vibration type. And if it is monotonically increasing or decreasing,
The number of samples is reduced, and in the case of vibration type, the number of samples is increased.
以下、この発明を第２図及び第３図に示す１実
施例に基づいて詳細に説明する。第２図におい
て、１０はホツパ、１２はスクリユーフイーダ
で、このスクリユーフイーダ１２は、ホツパ１０
から品物（例えば粉体）１４を一回転当り所定体
積ずつ切り出して、各容器１６に順に充填する。
充填済みの各容器１６は搬送コンベヤ１８，２０
によつて計量コンベヤ２２に搬送され、これに設
けられた計量装置２３によつて計量される。その
計量信号は、この発明を実施した制御装置２４に
供給され、制御装置２４はサンプル数Ｎ個の計量
信号の平均値と基準重量との差に基づいてスクリ
ユーフイーダ１２の回転数を制御する。スクリユ
ーフイーダを用いたものでは、この他に回転速度
を制御してもよく、ピストンを用いて充填する場
合にはピストンのストロークを制御する。 Hereinafter, this invention will be explained in detail based on one embodiment shown in FIGS. 2 and 3. In FIG. 2, 10 is a hopper, 12 is a screw feeder, and this screw feeder 12 is connected to the hopper 10.
A predetermined volume of the product (for example, powder) 14 is cut out from the material per revolution, and the product is sequentially filled into each container 16.
Each filled container 16 is transferred to a conveyor 18, 20.
is conveyed to a weighing conveyor 22, and weighed by a weighing device 23 provided thereon. The weighing signal is supplied to a control device 24 implementing the present invention, and the control device 24 controls the rotation speed of the screw feeder 12 based on the difference between the average value of the weighing signals of N samples and the reference weight. do. In the case of using a screw feeder, the rotational speed may also be controlled in addition to this, and in the case of filling using a piston, the stroke of the piston is controlled.
制御装置２４は、第３図に示すように累計器２
６を有し、この累計器２６には計量コンベヤ２２
の計量装置２３からの計量信号が供給され、計量
コンベヤ２２の計量装置２３が容器１６を計量す
るごとに発生する累計指令信号が供給されるごと
に累計器２６は計量信号を累計する。累計指令信
号はカウンタ２８にも供給され、カウンタ２８は
累計指令信号の発生回数をカウントする。このカ
ウント値は比較器３０に供給される。この比較器
３０には、個数設定器３２に設定したサンプル個
数Ｎを除数設定器３４に設定した除数ｎで除算器
３６によつて除算した値ｍ＝Ｎ／ｎも供給され、
比較器３０はカウント値と除算値ｍとが一致した
とき、除算器３８は累計値を除算値ｍで除算し、
品物ｍ個の平均値を算出する。また比較器３０の
出力は累計器２６をリセツトし、次の累計に備え
る。以下、同様にしてサンプル個数Ｎ個の品物の
ｍ個づつの平均値M1，M2…Moが合計ｎ個得ら
れる。 The control device 24 controls the accumulator 2 as shown in FIG.
6, and this accumulator 26 has a weighing conveyor 22
The accumulator 26 accumulates the measurement signals each time the measurement signal from the measurement device 23 of the weighing conveyor 22 is supplied, and the accumulation command signal generated each time the measurement device 23 of the weighing conveyor 22 weighs the container 16. The cumulative command signal is also supplied to a counter 28, and the counter 28 counts the number of times the cumulative command signal has been generated. This count value is supplied to comparator 30. The comparator 30 is also supplied with a value m=N/n obtained by dividing the number of samples N set in the number setter 32 by a divisor n set in the divisor setter 34 by a divider 36,
When the comparator 30 matches the count value and the division value m, the divider 38 divides the cumulative value by the division value m,
Calculate the average value of m items. The output of comparator 30 also resets accumulator 26 in preparation for the next accumulation. Thereafter, a total of n average values M1 , M2 , .
これらｎ個の平均値は、減算及び判別器４０に
て基本重量設定器５０の基準重量との差がとられ
平均偏差値としてｎ段のシフトレジスタ３８のｎ
段目３８ｎに順に供給され、最終的には各段に順
に記憶される。すなわち１段目３８１にはW1が、
２段目３８２にはW2が、…ｎ段目３８ｎにはWo
が記憶される。また減算及び判別器４０は平均偏
差値が０以上であるときは出力「０」を発生し、
平均偏差値が０未満のとき出力「１」を発生し、
W1乃至Woにそれぞれ対応する出力は、ｎ段のシ
フトレジスタ４２のｎ段目４２ｎに順に供給さ
れ、最終的には各段に順に供給される。すなわ
ち、１段目４２１にはW1の極性に対応する減算
及び判別器４０の出力が、２段目４２２にはW2
の極性に対応する判別器４０の出力が、…ｎ段目
４２ｎにはWoの極性に対応する判別器４０の出
力がそれぞれ記憶される。シフトレジスタ３８の
ｎ段３８ｎとｎ−１段３８ｎ−１の出力とは、比
較器４４で比較され、ｎ段３８ｎの出力がｎ−１
段３８ｎ−１の出力より大きいとき出力「０」を
発生し、ｎ段３８ｎの出力がｎ−１段の出力より
小さいとき出力「１」を発生する。この比較器４
４の出力はｎ段のシフトレジスタ４６のｎ段４６
ｎに順に供給され、最終的には１段４６１には
W1と前回のＮ個のサンプリングのうち最後のWo
との比較結果に対応する比較器４４の出力が、２
段４６２にはW1とW2との比較結果に対応する比
較器４６の出力が、…ｎ段４６ｎにはWoとWo−
１との比較結果に対応する比較結果がそれぞれ記
憶される。なお、両者が等しい場合、次回の比較
結果がその段に記憶される。 The difference between these n average values and the reference weight of the basic weight setting device 50 is taken by the subtraction and discriminator 40, and the n
The data is sequentially supplied to the stages 38n, and finally stored in each stage in sequence. In other words, W 1 is in the first row 381,
W 2 is in the second stage 382, W o in the nth stage 38n
is memorized. Further, the subtractor and discriminator 40 generates an output "0" when the average deviation value is 0 or more,
Generates an output "1" when the average deviation value is less than 0,
The outputs corresponding to W 1 to W o are sequentially supplied to the n-th stage 42n of the n-stage shift register 42, and finally to each stage in sequence. That is, the first stage 421 receives the subtraction and the output of the discriminator 40 corresponding to the polarity of W 1 , and the second stage 422 receives the output of W 2
The output of the discriminator 40 corresponding to the polarity of W o is stored in the n-th stage 42n, and the output of the discriminator 40 corresponding to the polarity of W o is stored, respectively. The outputs of the n-stage 38n and the n-1 stage 38n-1 of the shift register 38 are compared by the comparator 44, and the output of the n-stage 38n is the output of the n-1 stage 38n.
When the output of the nth stage 38n is greater than the output of the nth stage 38n-1, an output "0" is generated, and when the output of the nth stage 38n is less than the output of the n-1 stage, an output "1" is generated. This comparator 4
The output of 4 is transferred to the n stage 46 of the n stage shift register 46.
n in order, and finally to the first stage 461.
W 1 and the last W o of the previous N samplings
The output of the comparator 44 corresponding to the comparison result with 2
The output of the comparator 46 corresponding to the comparison result between W 1 and W 2 is output to the stage 462, and the output of the comparator 46 corresponding to the comparison result between W 1 and W 2 is output to the stage 462 .
The comparison results corresponding to the comparison results with 1 are respectively stored. Note that if the two are equal, the next comparison result is stored in that stage.
シフトレジスタ３８，４２，４６の各段に上記
の各値が記憶されると、総合平均値演算器４８
は、W1乃至Woを加算して、この加算値を除数設
定器３４に設定されているｎで除算してＮ個の品
物の相互平均偏差値を演算する。この総合平均偏
差値は乗算器５４で定数設定器５６に設定されて
いる定数と乗算され、この乗算値はスクリユーフ
イーダ１２に供給され、その回転数を制御する。 When the above values are stored in each stage of the shift registers 38, 42, and 46, the total average value calculator 48
calculates the mutual average deviation value of N items by adding W 1 to W o and dividing this added value by n set in the divisor setter 34. This total average deviation value is multiplied by a constant set in a constant setter 56 by a multiplier 54, and this multiplied value is supplied to the screw feeder 12 to control its rotation speed.
このとき、同時にシフトレジスタ４６の２段４
６２からｎ段４６ｎの各出力Ｃ２乃至Coはアン
ド回路５８、入力否定アンド回路６０、排他的論
理和回路６２，６４に供給され、シフトレジスタ
４２の１段４２１からｎ段４２ｎの各出力Ｓ１乃
至Snは入力否定アンド回路６６、排他的論理和
回路６８に供給される。 At this time, at the same time, the two stages 4 of the shift register 46
62 to n stages 46n are supplied to an AND circuit 58, an input NOT AND circuit 60, and an exclusive OR circuit 62, 64, and each output S1 of the first stage 421 to n stage 42n of the shift register 42 Sn to Sn are supplied to an input NAND circuit 66 and an exclusive OR circuit 68.
ここで、充填重量が単調増加している場合、シ
フトレジスタ４６の２段からｎ段までの出力Ｃ２
乃至Coは全て「０」であるから入力否定アンド
回路６０が出力「１」を発生し、表示部７０の単
調増加表示をする。同時に入力否定アンド回路６
０の出力「１」はオア回路７２を介してゲート７
４に供給され、これを開く。これによつて減少定
数設定器７６に設定されている減少定数K1（１＞
K1＞０）が乗算器７８において設定個数Ｎと乗
算され、その乗算値K1Nが個数設定器３２に記
憶され、これを次回のサンプリング個数としてサ
ンプリングが行なわれる。その結果、まだ単調増
加である場合、再びK1Nに対してK1が乗算さ
れ、K12Nが次のサンプリング個数とされる。以
下、これを単調増加状態が停止するまで繰返す。
ただし、上記のようにして順次減少させたサンプ
リング個数が下限値設定器７９に設定されている
下限値未満にならないよう比較器８０、切換スイ
ツチ８２が設けられている。単調減少の場合、シ
フトレジスタ４６の２段からｎ段の各出力は全て
「１」であるから、アンド回路５８が出力「１」
を発生し、表示部７０に単調減少表示をすると共
に、オア回路７２を介してゲート７４を開き、上
述したのと同様にサンプリング個数を減少させ
る。 Here, if the filling weight increases monotonically, the output C2 from the second stage to the nth stage of the shift register 46
Since C o to C o are all "0", the input NAND circuit 60 generates an output "1", and the display section 70 displays a monotonically increasing display. Simultaneously input negative AND circuit 6
The output “1” of 0 is sent to the gate 7 via the OR circuit 72.
4 and open it. As a result, the reduction constant K1 (1>
K1>0) is multiplied by the set number N in the multiplier 78, the multiplied value K1N is stored in the number setter 32, and sampling is performed using this as the next sampling number. As a result, if it is still monotonically increasing, K1N is multiplied by K1 again, and K1 2 N is set as the next sampling number. Thereafter, this process is repeated until the monotonically increasing state stops.
However, a comparator 80 and a changeover switch 82 are provided so that the number of samples sequentially reduced as described above does not become less than the lower limit value set in the lower limit value setter 79. In the case of monotonous decrease, the outputs from the second stage to the nth stage of the shift register 46 are all "1", so the AND circuit 58 outputs "1".
is generated, a monotonically decreasing display is displayed on the display section 70, and the gate 74 is opened via the OR circuit 72 to reduce the number of samples in the same manner as described above.
また充填重量の変化が同一極性型である場合、
シフトレジスタ４２の２段目からｎ段目までの出
力は全て「０」であるから入力否定アンド回路６
６の出力が「１」になり、同時にシフトレジスタ
４６の各段の出力は「１」と「０」とが混在して
いるので排他的論理和回路６２の出力も「１」と
なる。従つてアンド回路８４の出力が「１」にな
り表示部７０に同一極性表示をする。この場合、
サンプリング個数Ｎの変更はされない。 Also, if the change in filling weight is of the same polarity,
Since the outputs from the second stage to the nth stage of the shift register 42 are all "0", the input negation AND circuit 6
At the same time, since the output of each stage of the shift register 46 is a mixture of "1" and "0", the output of the exclusive OR circuit 62 also becomes "1". Therefore, the output of the AND circuit 84 becomes "1" and the same polarity is displayed on the display section 70. in this case,
The sampling number N is not changed.
さらに充填重量の変化が振動型である場合、シ
フトレジスタ４２の各段の出力及びシフトレジス
タ４６の２段からｎ段の各出力は「１」と「０」
とがそれぞれ混在しているので、排他的論理和回
路６４，６８の出力が共に「１」になり、アンド
回路８６の出力が「１」になり、表示部７０に振
動表示がされる。同時に、アンド回路８６の出力
「１」はゲート８８を開き、増加定数設定器９０
に設定されている増加定数K2（K2＞１）を乗算
器７８に供給し、サンプリング個数を増加させ
る。サンプリング個数を増加させても振動状態が
停止しない場合には、上記の単調増加と同様に上
限値設定器９２に設定した上限値までサンプリン
グ個数を増加させる。９４，９６は、サンプリン
グ個数を上限値以上にしないための比較器、切換
スイツチである。 Furthermore, if the change in filling weight is of the vibration type, the outputs of each stage of the shift register 42 and the outputs of stages 2 to n of the shift register 46 are "1" and "0".
Since the outputs of the exclusive OR circuits 64 and 68 are both "1", the output of the AND circuit 86 is "1", and a vibration is displayed on the display section 70. At the same time, the output "1" of the AND circuit 86 opens the gate 88 and increases the constant setter 90.
The increasing constant K2 (K2>1) set to is supplied to the multiplier 78 to increase the number of samples. If the vibration state does not stop even if the number of samples is increased, the number of samples is increased to the upper limit set in the upper limit value setter 92 in the same manner as the monotonous increase described above. 94 and 96 are comparators and changeover switches for preventing the number of samples from exceeding the upper limit value.
この発明による識別装置は、Ｎ個の品物をｍ個
づつの平均値を計ｎ個（Ｎ＝mn）求め、これら
平均値と基準重量との差である平均偏差値とその
極性及び隣接する平均偏差値の大小関係をそれぞ
れ検出して、この検出結果に基づいて単調増加、
単調減少、同一極性、振動型であることを判別し
ている。そして、単調増加または単調減少型の場
合には、サンプリング個数を自動的に減少させ、
振動型の場合にはサンプリング個数を自動的に増
加させている。従つて、単調増加または単調減少
型の場合には充填重量の制御の追従特性を良好に
し、振動型の場合には発生が生じるのを防止する
ことができる。 The identification device according to the present invention calculates a total of n average values (N=mn) for m items each of N items, and calculates the average deviation value which is the difference between these average values and a reference weight, its polarity, and the adjacent average value. Detect the magnitude relationship of the deviation values, and based on this detection result, increase monotonically,
It is determined that it is monotonically decreasing, has the same polarity, and is of an oscillating type. In the case of a monotonically increasing or decreasing type, the number of samples is automatically decreased,
In the case of the vibration type, the number of samples is automatically increased. Therefore, in the case of a monotonically increasing or monotonically decreasing type, it is possible to improve the follow-up characteristics of the filling weight control, and in the case of a vibration type, it is possible to prevent occurrence.
上記の実施例では、充填重量の平均値を求めて
から基準重量値を引いて平均偏差値を求めたが、
さきに充填重量の基準重量に対する偏差を求めて
からその平均値を求めてもよい。また、サンプリ
ング数の増減はK1、K2を乗算することによつて
行なつたが、適当な個数をＮから加減算すること
によつて行なつてもよい。さらに、相互平均値演
算器４８ではW1乃至Woの和をｎで除算したが、
WoとWo−１との和を２で除算してもよい。 In the above example, the average deviation value was calculated by subtracting the reference weight value after calculating the average filling weight.
The deviation of the filled weight from the reference weight may be determined first, and then the average value thereof may be determined. Furthermore, although the number of samples was increased or decreased by multiplying K1 and K2, it may also be done by adding or subtracting an appropriate number from N. Furthermore, the mutual average value calculator 48 divided the sum of W 1 to W o by n;
The sum of W o and W o -1 may be divided by 2.
第１図(i)乃至(iii)は充填重量の変化状態を示す
図、第２図はこの発明による識別装置を備えた充
填装置の概略構成図、第３図は同識別装置を含む
充填装置の制御装置のブロツク図である。
２２……計量コンベヤ、２６，２８，３０，３
２，３６，３８……平均値算出回路、４０……減
算及び判別器、４２……第１のレジスタ、４４…
…大小判別器、４６……第２のレジスタ、５８…
…第２の論理回路、６０……第１の論理回路、６
４，６８，８６……第３の論理回路。
Figures 1 (i) to (iii) are diagrams showing changes in filling weight, Figure 2 is a schematic diagram of a filling device equipped with an identification device according to the present invention, and Figure 3 is a filling device including the identification device. FIG. 22...Measuring conveyor, 26, 28, 30, 3
2, 36, 38...Average value calculation circuit, 40...Subtraction and discriminator, 42...First register, 44...
...Size discriminator, 46...Second register, 58...
...Second logic circuit, 60...First logic circuit, 6
4, 68, 86...Third logic circuit.
Claims (1)
充填する充填装置と、上記充填された容器を順次
計量する計量装置と、上記各容器内の品物の充填
重量の平均値を求めるために予め定めた上記容器
の個数Ｎが設定されている個数設定器と、上記個
数Ｎを分割する組数ｎが設定されている設定器
と、上記容器個数Ｎを上記分割組数ｎで除算して
各組を構成する容器の数ｍを算出する除算器と、
上記計量装置からの計量値の上記ｍ個ずつの平均
値の基準重量に対する偏差または上記計量値の上
記基準重量に対する偏差の上記ｍ個ずつの平均値
である演算値を順次算出する回路と、上記各演算
値に基づいて上記制御信号を生成する回路と、上
記各演算値の極性を順次判別する回路と、この極
性判別結果を順次記憶するシフトレジスタと、上
記順次算出された演算値とこれと隣接する演算値
との絶対値の大小を判別する回路と、この大小判
別結果を順次記憶する第２のシフトレジスタと、
第２のシフトレジスタの記憶値が全て大を表わす
信号であるとき出力信号を発生する第１の論理回
路と、第２のシフトレジスタの記憶値が全て小を
表わす信号のとき出力信号を発生する第２の論理
回路と、第２のシフトレジスタの記憶値に大及び
小を表わす信号が混在するとき出力信号を生成す
る第３の論理回路と、第１のシフトレジスタの記
憶値に正及び負を表わす信号が混在するとき出力
信号を生成する第４の論理回路と、第３及び第４
の論理回路が同時に出力信号を生成したとき出力
信号を生成する第５の論理回路と、第１または第
２の論理回路が出力信号を生成したとき上記容器
の個数Ｎを減少させて上記個数設定器に記憶させ
る回路と、第５の論理回路が出力信号を生成した
とき上記容器の個数Ｎを増加させて上記個数設定
器に記憶させる回路とを、具備する充填重量制御
装置。1. A filling device that sequentially fills containers with items in a filling amount according to a control signal, a weighing device that sequentially weighs the filled containers, and a device that preliminarily calculates the average value of the filling weight of the items in each container. A number setting device in which the predetermined number N of containers is set, a setting device in which the number n of groups into which the number N is divided is set, and a number setting device in which the number N of containers is divided by the number of division groups n is set. a divider that calculates the number m of containers forming a set;
a circuit that sequentially calculates a calculated value that is a deviation of the average value of each of the m measured values from the measuring device with respect to a reference weight or an average value of the m values of the deviation of each of the m measured values with respect to the reference weight; a circuit that generates the control signal based on each calculated value; a circuit that sequentially determines the polarity of each calculated value; a shift register that sequentially stores the polarity determination results; a circuit that determines the magnitude of the absolute value with respect to adjacent calculated values; a second shift register that sequentially stores the results of this magnitude determination;
A first logic circuit that generates an output signal when all values stored in the second shift register are signals representing large values, and a first logic circuit that generates an output signal when all values stored in the second shift register are signals representing small values. a second logic circuit; a third logic circuit that generates an output signal when the stored value of the second shift register includes signals representing large and small; and a third logic circuit that generates an output signal when the stored value of the first shift register includes positive and a fourth logic circuit that generates an output signal when signals representing the
a fifth logic circuit that generates an output signal when the logic circuits generate output signals at the same time, and a fifth logic circuit that generates an output signal when the first or second logic circuit generates an output signal, decreases the number N of the containers and sets the number. A filling weight control device comprising: a circuit for storing the number N of containers in the container; and a circuit for increasing the number N of containers and storing it in the number setting device when the fifth logic circuit generates an output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5154782A JPS58167922A (en) | 1982-03-29 | 1982-03-29 | Apparatus for recognizing change in weight of filled article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5154782A JPS58167922A (en) | 1982-03-29 | 1982-03-29 | Apparatus for recognizing change in weight of filled article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58167922A JPS58167922A (en) | 1983-10-04 |
| JPH0210887B2 true JPH0210887B2 (en) | 1990-03-12 |
Family
ID=12890043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5154782A Granted JPS58167922A (en) | 1982-03-29 | 1982-03-29 | Apparatus for recognizing change in weight of filled article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58167922A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6305781B2 (en) * | 2014-02-05 | 2018-04-04 | 大和製衡株式会社 | Combination scale |
-
1982
- 1982-03-29 JP JP5154782A patent/JPS58167922A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58167922A (en) | 1983-10-04 |
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