JPH0426050B2 - - Google Patents

Info

Publication number
JPH0426050B2
JPH0426050B2 JP58118724A JP11872483A JPH0426050B2 JP H0426050 B2 JPH0426050 B2 JP H0426050B2 JP 58118724 A JP58118724 A JP 58118724A JP 11872483 A JP11872483 A JP 11872483A JP H0426050 B2 JPH0426050 B2 JP H0426050B2
Authority
JP
Japan
Prior art keywords
combination
weight
tolerance
hoppers
weighing
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 - Lifetime
Application number
JP58118724A
Other languages
Japanese (ja)
Other versions
JPS6010123A (en
Inventor
Kinichi Matsura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teraoka Seiko Co Ltd
Original Assignee
Teraoka Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teraoka Seiko Co Ltd filed Critical Teraoka Seiko Co Ltd
Priority to JP11872483A priority Critical patent/JPS6010123A/en
Publication of JPS6010123A publication Critical patent/JPS6010123A/en
Priority to US06/862,197 priority patent/US4673046A/en
Publication of JPH0426050B2 publication Critical patent/JPH0426050B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G13/00Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/24Weighing mechanism control arrangements for automatic feed or discharge
    • G01G13/247Checking quantity of material in the feeding arrangement, e.g. discharge material only if a predetermined quantity is present
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/387Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value
    • G01G19/393Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value using two or more weighing units

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は組合せ秤における計量ホツパーの組合
せ選択方法の改良に関する。 所謂組合せ秤における計量ホツパーの組合せ選
択方法は、複数の計量ホツパーに供給された被計
量物の重量を夫々計量し、該計量値を適宜組合せ
て組合せ重量を全て算出し、最も設定重量に近い
組合せ重量を選択するものである。 組合せ秤においてその精度は計量ホツパーが多
い程よいが、計量ホツパーが多いと組合せ数が激
増してしまう。例えば 計量ホツパー 8…組合せ数 255通り 計量ホツパー 10…組合せ数 1023通り 計量ホツパー 16…組合せ数 65535通り となる。 前記従来組合せ演算方法においては組合せの計
量ホツパーが10以上であると、組合せ時間が著し
く長くかかるようになり非能率的である。 更に組合せ演算の最初の方で設定重量に最も近
い組合せ重量があつたとしても、それ以後の組合
せ演算をしてから組合せ重量を選択するので無駄
な時間を使つてしまう。 又、設定重量に最も近い組合せ重量を選択して
も必ずしも高精度とならない。例えば各計量ホツ
パーへの被計量物の供給が著しく偏つてしまつた
時には、最も設定重量に近い組合せ重量であつて
も設定重量と大きな差を生じる場合がある。 本発明は上記従来事情に鑑みてなされたもので
その目的とする処は、組合せ時間及び無駄時間が
少なく能率がよいと共に計量精度に優れた組合せ
演算方法を提供することにある。 斯る本発明の組合せ秤における計量ホツパーの
組合せ選択方法は、複数の計量ホツパーに供給さ
れた被計量物の重量を夫々計量すると共に、それ
ら計量値に基づいて上記ホツパーの組合せ重量を
算出し、その組合せ重量が設定重量の許容差内に
あるか否かを順次に判定する組合せ演算をし、そ
の組合せ演算の途中で最初に設定重量の許容差内
の組合せ重量があつたときに、それを組合せとし
て選択する組合せ秤における計量ホツパーの組合
せ選択方法において、上記計量値に基づいてホツ
パー全個数に対する最も組合せ数の多いホツパー
数の組合せ群から順に予め設定した組合せ順序に
従つて組合せ演算をし、設定重量の許容差内の組
合せ重量があつたときに組合せ演算を終了するこ
とを特徴とする。 計量ホツパー数を10個とした場合の組合せ選択
の実施例を説明すれば、本実施例において最も組
合せ数が多い(組合せ精度が良い)ものは10C5
即ち5個の計量ホツパーを選択するものである。 各計量ホツパーには設定重量の1/5を目標に供
給するものとして、組合せの優先順位は、 1C510C4 10C610C3 10C710C2 10C810C1 10C910C10 とする。 上記優先順位において10C410C6とを同一順位
としたのは両者10C410C6とが補数分布的な組合
せであるからである。即ち各計量ホツパーの計量
値をX1,X2,X3…X10とした場合、10 C4 10C6 X1,X2,X3,X4, X5,X6,X7,X8,X9,X10, X1,X2,X3,X5, X4,X6,X7,X8,X9,X10, 〓 〓 以上のような補数分布的な組合せが同じ数だけ
得られる為である。 又、計量ホツパーの各使用頻度の均一化を考慮
し、組合せ順位は10C410C6とを交互に配列する
ようにしてもよく、10C310C710C210C810C1
10C9についても同様である。 実際の組合せに用いる組合せは10C510C410C6
迄であり、予め下記のような組合せ表を用意して
おいてその順に組合せ計算するものである。表
中、 1:組合せへ参加する 0:組合せへ参加せず である。
The present invention relates to an improvement in a method for selecting a combination of weighing hoppers in a combination weigher. The method of selecting a combination of weighing hoppers in a so-called combination scale is to weigh the weight of the objects to be weighed supplied to a plurality of weighing hoppers, combine the weighed values as appropriate to calculate all the combined weights, and select the combination closest to the set weight. The weight is selected. In combination scales, the more weighing hoppers there are, the better the accuracy, but if there are many weighing hoppers, the number of combinations increases dramatically. For example, weighing hopper 8...255 combinations, weighing hopper 10...1023 combinations, weighing hopper 16...65535 combinations. In the conventional combination calculation method, if the number of weighing hoppers in the combination is 10 or more, the combination takes a significantly long time and is inefficient. Furthermore, even if the combination weight closest to the set weight is found at the beginning of the combination calculation, the combined weight must be selected after performing the subsequent combination calculations, resulting in wasted time. Further, even if the combination weight closest to the set weight is selected, high accuracy is not necessarily achieved. For example, if the supply of objects to be weighed to each weighing hopper is significantly uneven, even the combined weight closest to the set weight may result in a large difference from the set weight. The present invention has been made in view of the above-mentioned conventional circumstances, and an object thereof is to provide a combination calculation method that is efficient with less combination time and wasted time, and has excellent measurement accuracy. The method for selecting a combination of weighing hoppers in a combination weigher according to the present invention includes weighing the weights of objects to be weighed supplied to a plurality of weighing hoppers, and calculating the combined weight of the hoppers based on these weighed values, A combination calculation is performed to sequentially determine whether the combined weight is within the set weight tolerance, and when a combined weight within the set weight tolerance is first found during the combination calculation, it is In the method for selecting a combination of weighing hoppers in a combination scale to be selected as a combination, a combination calculation is performed in accordance with a preset combination order in order from the combination group of the number of hoppers with the largest number of combinations with respect to the total number of hoppers based on the above-mentioned weighing value, The present invention is characterized in that the combination calculation is terminated when a combination weight is found within a set weight tolerance. To explain an example of combination selection when the number of weighing hoppers is 10, in this example, the one with the largest number of combinations (highest combination accuracy) is 10 C 5 ,
That is, five weighing hoppers are selected. Assuming that each weighing hopper is supplied with 1/5 of the set weight, the priority of the combinations is: 1 C 510 C 4 10 C 610 C 3 10 C 710 C 2 10 C 810 C 1 10 C 910 C 10 . The reason why 10 C 4 and 10 C 6 are given the same priority in the above priority order is that 10 C 4 and 10 C 6 are a combination of complement distribution. That is, when the weighing values of each weighing hopper are X 1 , X 2 , X 3 ...X 10 , 10 C 4 10 C 6 X 1 ,X 2 ,X 3 ,X 4 , X 8 , X 9 , X 10 , _ _ _ _ This is because the same number of is obtained. In addition, in consideration of equalizing the frequency of use of each weighing hopper, the combination order may be arranged such that 10 C 4 and 10 C 6 are arranged alternately, 10 C 3 and 10 C 7 , 10 C 2 and 10 C 8 , 10 C 1 and
The same goes for 10C9 . The combinations used in the actual combination are 10 C 5 , 10 C 4 , 10 C 6
A combination table as shown below is prepared in advance and the combinations are calculated in that order. In the table, 1: Participate in the combination 0: Not participate in the combination.

【表】 組合せNoがCBnの組合せ重量をFnとし、設定
重量を100g、その許容差を0〜+2gとし、 X1=20.5(g) X6=31.2(g) X2=35.6 X7=22.4 X3=15.6 X8=28.7 X4=17.1 X9=23.8 X5=17.9 X10=19.5 とすれば、 Fn=X1+X3+X4+X7+X9 =20.5+15.6+17.1+22.4+23.8 =99.4(g) 不足 Fn+1=X2+X5+X6+X8+X10 =35.6+17.9+31.2+28.7+19.5 =132.9(g) 過大 Fn+2=X1+X3+X5+X7+X9 =20.5+15.6+17.9+22.4+23.8 =100.2(g) 許容差内 となり、Fn+2が組合せ重量として選択され、
組合せNoがCBn+3移行は行わない。 以上に述べた本発明組合せ演算方法は組合せの
個数を変えても基本的には変わらない。例えば、
3個の組合せで100gの設定重量を得たい場合は、
各計量ホツパーに33.3gの被計量物を目標に供給
するようにし、この場合組合せの優先順位は、 10C310C410C2 とする。又、10C3の組合せ内における配列におい
ては計量ホツパーの使用頻度を考慮して、組合せ
に参加していないものも優先的に用いるようにす
る。例えば、X1X2X4→X3X5X6→X7X8X9
X10X1X2→…とするとよい。 後は前記組合せ選択と同一であり説明は省略す
る。 上記組合せ選択方法に基づいた組合せ選択装置
の一例を図面により説明すれば、第1図はそのブ
ロツク図である。 図中1は設定重量及びその許容差を記憶してお
くレジスタであり、演算部2に接続され、設定重
量及びその許容差を演算部2に入力するものであ
る。 演算部2は優先順位に定められた組合せ表に基
づいて組合せ重量を次々算出するものであり、コ
ンビネーシヨンアドレスレジスタ3(以下CBア
ドレスレジスタとする)、組合せ表記憶部4と接
続する。 CBアドレス3は組合せNoを指示する為に組合
せNoを収納するアドレスレジスタであり、組合
せ表記憶部4は前記組合せ表を記憶した記憶部で
あり、CBアドレスレジスタ3に指示された組合
せを組合せ表記憶部4より探し出して演算部2に
入力する。 演算部2には秤部5が接続され、秤部5は各計
量ホツパー内の被計量物を計量し、各計量値を演
算部2に入力する。 演算部2の出力はレジスタ6と判別部8に入力
され、レジスタ6は組合せ重量を一時記憶するも
ので、最終的に組合せとして選択された重量を表
示部7に出力し表示する。 判別部8は、組合せ重量が設定重量の許容差内
にあるかを判別するもので、組合せ重量が決定し
たら、駆動部9を駆動して組合せの計量ホツパー
を開動する。又組合せ重量が決定しない場合は演
算部2を介してCBアドレスレジスタ3の内容を
更新する。 次に上記組合せ選択装置の工程を第2図により
説明するが、説明中Fnは組合せ演算値、Wは設
定重量、αは上の許容差、βは下の許容差であ
る。組合せ演算をスタートすると11、CBアド
レスに最初の組合せNoであるCB0がセツトされ
12、次に各計量ホツパーの被計量物を計量する
13。 CBアドレスの指定の組合せ演算を行ない14、
該組合せ演算値Fnが上の許容値(W+α)を越
えているかを判定し15、該許容値(W+α)内
であれば、(Yes)、下の許容値(W−β)内であ
るかを判定し16、該許容値(W−β)内であれ
ば(Yes)、その組合せに対応する計量ホツパー
を開閉し18、組合せを得る18。 組合せ演算値Fnが上の許容値(W+α)を超
えていたり(15,No)、下の許容値(W+β)
を下回つている(16,No)場合はCBアドレス
レジスタ3の更新、即ち組合せNoであるCBnを
1つカウントし19、新たにCBアドレスにセツ
トする20。 次に組合せが全て(CB0〜CBEND)終了したか
をチエツクし21、未だ組合せのある時は
(No)、工程14以降の工程を繰り返す。 全ての組合せ(CB0〜CBEND)が終了しても2
1,Yes)、組合せのみつからない時には、計量
ホツパーの一部又は全部を排出し22、再計量1
3する。 本発明は以上のように、複数の計量ホツパーに
供給された被計量物の重量を夫々計量し、該計量
値を予め設定した組合せ順序に従つて、組合せ重
量を順次算出し、該組合せ重量が設定重量の許容
差内にあるか否かを順次に判定し、設定重量の許
容差内の組合せ重量が選択された時点で組合せ演
算を終了する組合せ秤における計量ホツパーの組
合せ選択方法であるので、組合せ演算における無
駄時間が少なくて極めて能率的である。 又、組合せ重量は必ず設定重量の許容差内に選
択されるので、組合せ精度は許容差の設定により
定まるようになり、任意の精度を設定でき便利で
ある。 又、組合せ順序はホツパー全個数に対する最も
組合せ数の多いホツパー数の組合せ群から設定す
るので、組合せ精度が良くて設定重量の許容差内
に入る組合せ重量の発生が早期である可能性が高
く、作業性の高い組合せ秤を提供し得る。 依つて所期の目的を達する。
[Table] The combination weight of combination number CBn is Fn, the set weight is 100g, and the tolerance is 0 to +2g, X 1 = 20.5 (g) X 6 = 31.2 (g) X 2 = 35.6 X 7 = 22.4 If X 3 = 15.6 X 8 = 28.7 X 4 = 17.1 X 9 = 23.8 X 5 = 17.9 X 10 = 19.5, then Fn = 8 = 99.4 ( g ) Insufficient Fn + 1 = X 2 + X 5 + X 6 + +15.6+17.9+22.4+23.8 = 100.2 (g) Within the tolerance, Fn+2 is selected as the combined weight,
The combination number does not shift to CBn+3. The above-described combination calculation method of the present invention does not fundamentally change even if the number of combinations is changed. for example,
If you want to obtain a set weight of 100g with a combination of 3 pieces,
Each weighing hopper is made to supply 33.3 g of the object to be weighed to the target, and in this case, the priority of the combinations is 10 C 310 C 410 C 2 . In addition, in the arrangement within the 10 C 3 combination, the frequency of use of the weighing hopper is taken into account, and those that do not participate in the combination are also used preferentially. For example, X 1 X 2 X 4 →X 3 X 5 X 6 →X 7 X 8 X 9
It is better to do X 10 X 1 X 2 →... The rest is the same as the combination selection described above, and the explanation will be omitted. An example of a combination selection device based on the above combination selection method will be described with reference to the drawings. FIG. 1 is a block diagram thereof. In the figure, reference numeral 1 denotes a register for storing the set weight and its tolerance, which is connected to the calculation unit 2 and inputs the set weight and its tolerance to the calculation unit 2. The calculation section 2 calculates combination weights one after another based on a combination table defined in priority order, and is connected to a combination address register 3 (hereinafter referred to as CB address register) and a combination table storage section 4. The CB address 3 is an address register that stores a combination number to indicate the combination number, and the combination table storage unit 4 is a storage unit that stores the combination table, and stores the combination specified in the CB address register 3 in the combination table. It is searched from the storage section 4 and inputted to the calculation section 2. A weighing section 5 is connected to the computing section 2, and the weighing section 5 weighs the object to be weighed in each weighing hopper, and inputs each weighed value to the computing section 2. The output of the arithmetic unit 2 is input to a register 6 and a discriminating unit 8. The register 6 temporarily stores the combination weight, and the weight finally selected as the combination is output to the display unit 7 for display. The determining unit 8 determines whether the combined weight is within the tolerance of the set weight. When the combined weight is determined, the driving unit 9 is driven to open the weighing hopper of the combination. If the combination weight is not determined, the contents of the CB address register 3 are updated via the calculation unit 2. Next, the process of the above combination selection device will be explained with reference to FIG. 2. In the explanation, Fn is the combination calculation value, W is the set weight, α is the upper tolerance, and β is the lower tolerance. When the combination calculation is started (11), the first combination number CB0 is set to the CB address (12), and then the objects to be weighed in each weighing hopper are weighed (13). Perform the specified combination operation of the CB address 14.
Determine whether the combination calculation value Fn exceeds the upper tolerance value (W + α) 15, and if it is within the tolerance value (W + α), (Yes), is it within the lower tolerance value (W - β)? is determined (16), and if it is within the tolerance (W-β) (Yes), the weighing hopper corresponding to the combination is opened and closed (18) to obtain the combination (18). The combination calculation value Fn exceeds the upper tolerance value (W + α) (15, No) or the lower tolerance value (W + β)
If it is less than (16, No), the CB address register 3 is updated, that is, the combination No. CBn is counted by 19, and a new CB address is set 20. Next, it is checked whether all combinations (CB0 to CB END ) have been completed (21), and if there are still combinations (No), the steps from step 14 onwards are repeated. Even if all combinations (CB0 to CB END ) are completed, 2
1, Yes), if you cannot find the combination, eject part or all of the weighing hopper22, and reweigh1
Do 3. As described above, the present invention weighs the weight of objects to be weighed supplied to a plurality of weighing hoppers, calculates the combined weight sequentially according to a preset combination order of the measured values, and calculates the combined weight. This is a combination selection method for weighing hoppers in a combination scale that sequentially determines whether or not the set weight is within the tolerance, and ends the combination calculation when a combination weight within the set weight tolerance is selected. It is extremely efficient with little wasted time in combination calculations. Furthermore, since the combination weight is always selected within the tolerance of the set weight, the combination accuracy is determined by the setting of the tolerance, and it is convenient to be able to set any accuracy. In addition, since the combination order is set from the combination group of the number of hoppers that has the largest number of combinations with respect to the total number of hoppers, there is a high possibility that the combination accuracy will be high and a combination weight that falls within the tolerance of the set weight will occur early. A combination scale with high workability can be provided. By doing so, we will reach our intended purpose.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明組合せ演算方法による組合せ演
算装置の実施例のブロツク図、第2図は同フロー
チヤート図である。 図中、Fn…組合せ重量、W…設定重量、α…
上の許容差、β…下の許容差、である。
FIG. 1 is a block diagram of an embodiment of a combination calculation device using the combination calculation method of the present invention, and FIG. 2 is a flowchart of the same. In the figure, Fn...Combination weight, W...Setting weight, α...
The upper tolerance is β...the lower tolerance.

Claims (1)

【特許請求の範囲】[Claims] 1 複数の計量ホツパーに供給された被計量物の
重量を夫々計量すると共に、それら計量値に基づ
いて上記ホツパーの組合せ重量を算出し、その組
合せ重量が設定重量の許容差内にあるか否かを順
次に判定する組合せ演算をし、その組合せ演算の
途中で最初に設定重量の許容差内の組合せ重量が
あつたときに、それを組合せとして選択する組合
せ秤における計量ホツパーの組合せ選択方法にお
いて、上記計量値に基づいてホツパー全個数に対
する最も組合せ数の多いホツパー数の組合せ群か
ら順に予め設定した組合せ順序に従つて組合せ演
算をし、設定重量の許容差内の組合せ重量があつ
たときに組合せ演算を終了する組合せ秤における
計量ホツパーの組合せ選択方法。
1. Weigh the weight of the objects to be weighed supplied to a plurality of weighing hoppers, calculate the combined weight of the hoppers based on the measured values, and check whether the combined weight is within the set weight tolerance. In a method for selecting a combination of weighing hoppers in a combination scale, in which a combination calculation is performed to sequentially determine , and during the combination calculation, when a combination weight within the tolerance of the set weight is first found, it is selected as the combination. Based on the above weighed values, combination calculations are performed according to the preset combination order starting from the combination group with the largest number of combinations for the total number of hoppers, and when the combination weight is within the tolerance of the set weight, the combination is performed. How to select a combination of weighing hoppers in a combination scale that ends calculations.
JP11872483A 1983-06-30 1983-06-30 Combination selecting method of metering hopper in combined balance Granted JPS6010123A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11872483A JPS6010123A (en) 1983-06-30 1983-06-30 Combination selecting method of metering hopper in combined balance
US06/862,197 US4673046A (en) 1983-06-30 1986-05-09 Control system for combined weighing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11872483A JPS6010123A (en) 1983-06-30 1983-06-30 Combination selecting method of metering hopper in combined balance

Publications (2)

Publication Number Publication Date
JPS6010123A JPS6010123A (en) 1985-01-19
JPH0426050B2 true JPH0426050B2 (en) 1992-05-06

Family

ID=14743509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11872483A Granted JPS6010123A (en) 1983-06-30 1983-06-30 Combination selecting method of metering hopper in combined balance

Country Status (1)

Country Link
JP (1) JPS6010123A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714829B2 (en) * 1974-06-13 1982-03-26

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245141Y2 (en) * 1980-06-18 1987-12-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714829B2 (en) * 1974-06-13 1982-03-26

Also Published As

Publication number Publication date
JPS6010123A (en) 1985-01-19

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