JP4126259B2 - Combination weighing device - Google Patents

Combination weighing device Download PDF

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JP4126259B2
JP4126259B2 JP2003328413A JP2003328413A JP4126259B2 JP 4126259 B2 JP4126259 B2 JP 4126259B2 JP 2003328413 A JP2003328413 A JP 2003328413A JP 2003328413 A JP2003328413 A JP 2003328413A JP 4126259 B2 JP4126259 B2 JP 4126259B2
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良光 高田
隆次 野崎
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アンリツ産機システム株式会社
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本発明は、個々に重量のバラツキがある物品を所定分ずつまとめて排出する組合せ計量装置における欠け品の処理に関する。   The present invention relates to the processing of missing parts in a combination weighing device that discharges articles each having a variation in weight together by a predetermined amount.

菓子、野菜、果物等のように個々に重量のバラツキのある物品を所定重量分ひとまとめにするために組合せ計量装置が用いられている。   A combination weighing device is used to collect articles each having a variation in weight such as confectionery, vegetables, fruits and the like by a predetermined weight.

組合せ計量装置は、物品の収容排出が可能な複数のホッパに供給した物品を計量器によってそれぞれ計量し、その計量値同士の組合せ演算を行い、組合せ重量が所定範囲となる組合せを選定し、選定した組合せに含まれる物品をホッパから排出してひとまとめにしている。   The combination weighing device weighs the articles supplied to multiple hoppers that can store and discharge articles, performs a combination calculation of the measured values, selects a combination whose combination weight falls within a predetermined range, and selects The items included in the combination are discharged from the hopper and put together.

このような組合せ計量装置で、例えば小袋包装されたアメやスティック菓子等の物品を計量する際に、単品の一部が欠損した欠け品が供給される場合があるが、その欠け品を単に重量にバラツキのある物品として組合せに参加させてしまうと、欠け品を含む製品を製造してしまう。   In such a combination weighing device, for example, when weighing an article such as a candy or a stick candy packed in a sachet, a missing item in which a part of the single item is missing may be supplied. If the product is included in the combination as an article having a large variation, a product including a missing product is produced.

この問題を解決するために、次の特許文献１では、計量対象物品の単体の平均重量と標準偏差を予め求め、その平均重量と標準偏差から得られる物品の個数毎の重量確率分布がとる重量範囲を求め、計量値がその重量範囲外にあれば、ホッパに欠け品等の不良品が含まれていると判定して、そのホッパに収容されている物品の計量値の組合せ演算への参加を禁止して強制排出し、製品として組合せ排出されないようにしている。   In order to solve this problem, in the following Patent Document 1, the average weight and standard deviation of a single object to be weighed are obtained in advance, and the weight taken by the weight probability distribution for each number of articles obtained from the average weight and standard deviation. Determine the range, and if the measured value is outside the weight range, determine that the hopper contains a defective product such as a missing product, and participate in the combined calculation of the measured values of the items contained in the hopper Is forcibly discharged to prevent combined discharge as a product.

特許第２６３０８２４号公報Japanese Patent No. 2630824

しかしながら、上記した従来の組合せ計量装置では、単品の平均値と標準偏差から得られた個数毎の重量確率分布がとる重量範囲（３σや４σの範囲）を良品範囲とし、それ以外の重量範囲を不良品の重量範囲としているため、半欠け品等のように欠損率が１／２程度の限られた欠け品しか検出できず、形状的な理由等で１／３欠けや１／４欠け等が発生しやすい物品に含まれる欠け品を検出することが困難であった。   However, in the conventional combination weighing apparatus described above, the weight range (3σ or 4σ range) taken by the weight probability distribution for each piece obtained from the average value and standard deviation of a single product is set as a good product range, and other weight ranges are set. Since it is in the weight range of defective products, only limited missing products with a defect rate of about 1/2 such as semi-missing products can be detected, and 1/3 missing or 1/4 missing due to shape reasons, etc. It is difficult to detect a missing product contained in an article that is prone to occur.

また、どの程度の欠け品が含まれるホッパを検出できるか、あるいはその検出がどの程度の物品供給数で達成されるか等、欠け品の検出についての情報が作業者側で明確に把握できないという問題があり、その情報に応じての適切な供給処理が難しく、欠け品の検出ができないような過大な供給を行なって欠け品が含まれる製品を多く製造したり、過小な供給を行なって運転能率を低下させてしまう等の問題があった。   Also, it is not possible for the operator to clearly grasp the information on the detection of missing items, such as how many missing items can be detected, or how many items can be supplied. There is a problem, it is difficult to perform appropriate supply processing according to the information, excessive supply that can not detect missing items is made, many products containing missing items are manufactured, or operation is performed with excessive supply There was a problem such as reducing the efficiency.

本発明は、この問題を解決して、欠け品の検出についての各種情報を作業者が明確に把握でき、その情報に応じての適切な供給処理を行なえる組合せ計量装置を提供することを目的としている。   It is an object of the present invention to provide a combination weighing device that solves this problem and enables an operator to clearly grasp various pieces of information regarding the detection of a missing product and perform an appropriate supply process according to the information. It is said.

前記目的を達成するために、本発明の請求項１の組合せ計量装置は、
物品の収容排出が可能な複数のホッパ（２１）と、
前記ホッパに収容された物品の重量をそれぞれ検出する計量手段（２３、３４）と、
計量対象物品の単体の平均重量と標準偏差とを単体情報として設定するための単体情報設定手段（４０）と、
前記単体情報から得られる物品個数毎の良品重量確率分布に含まれる欠け品に対する検出条件を設定するための検出条件設定手段（４１）と、
前記単体情報と前記欠け品の検出条件とに基づいて、検出対象の欠け品を含むか否かを判定するための判定用重量範囲を算出する判定用重量範囲算出手段（４２）と、
前記判定用重量範囲算出手段によって算出された判定用重量範囲と前記計量手段によって検出された重量値とに基づいて、前記ホッパに収容された物品に欠け品が含まれているか否かを判定する欠け品判定手段（３５）と、
前記計量手段によって重量が検出された物品のうち、前記欠け品判定手段によって欠け品が含まれると判定された物品を除く組合せのなかから、所定の目標範囲となる組合せを選定する組合せ選定手段（３６）と、
前記組合せ選定手段によって組合せに選定された物品を前記ホッパから排出させる良品排出手段（３７）と、
前記欠け品判定手段によって欠け品が含まれていると判定された物品を前記ホッパから排出させる欠け品排出手段（３８）とを備え、
前記検出条件設定手段は、検出対象の欠け品についての欠損率の範囲と、該欠損率の欠け品を含む物品の欠け品重量確率分布と前記良品重量確率分布との重複限度とを、検出条件として設定するように構成され、
前記判定用重量範囲算出手段は、設定された欠損率範囲の欠け品を含む物品がとる重量範囲内で、且つ、前記良品重量確率分布と欠け品重量確率分布との重複度合いが前記限度内となる重量範囲を判定用重量範囲として算出することを特徴としている。 In order to achieve the above object, a combination weighing device according to claim 1 of the present invention comprises:
A plurality of hoppers (21) capable of accommodating and discharging articles;
Weighing means (23, 34) for detecting the weight of the articles accommodated in the hopper,
Unit information setting means (40) for setting the average weight and standard deviation of a single item to be weighed as unit information;
Detection condition setting means (41) for setting a detection condition for a missing item included in the non-defective product weight probability distribution for each number of articles obtained from the single unit information;
A weight range calculation unit for determination (42) for calculating a weight range for determination for determining whether or not a defective product to be detected is included based on the single unit information and the detection condition of the missing product;
Based on the determination weight range calculated by the determination weight range calculation means and the weight value detected by the weighing means, it is determined whether or not the article contained in the hopper contains a missing item. A missing item determination means (35);
Combination selection means for selecting a combination that falls within a predetermined target range from among the combinations whose weights are detected by the weighing means, excluding the articles that are determined to be missing by the missing article determination means. 36)
Non-defective product discharging means (37) for discharging the articles selected by the combination selecting means from the hopper;
A missing item discharge means (38) for discharging an article determined to be missing by the missing item determination means from the hopper ,
The detection condition setting means is configured to detect a range of a defect rate for a defective product to be detected, and an overlap limit between a missing product weight probability distribution of an article including the defective product having the defect rate and the non-defective product weight probability distribution. Configured to set as
The determination weight range calculation means is within a weight range taken by an article including a missing product within a set defect rate range, and the degree of overlap between the non-defective product weight probability distribution and the missing product weight probability distribution is within the limit. This weight range is calculated as a determination weight range.

また、本発明の請求項２の組合せ計量装置は、
物品の収容排出が可能な複数のホッパ（２１）と、
前記ホッパに収容された物品の重量をそれぞれ検出する計量手段（２３、３４）と、
計量対象物品の単体の平均重量と標準偏差とを単体情報として設定するための単体情報設定手段（４０）と、
前記単体情報から得られる物品個数毎の良品重量確率分布に含まれる欠け品に対する検出条件を設定するための検出条件設定手段（４１）と、
前記単体情報と前記欠け品の検出条件とに基づいて、検出対象の欠け品を含むか否かを判定するための判定用重量範囲を算出する判定用重量範囲算出手段（４２）と、
前記判定用重量範囲算出手段によって算出された判定用重量範囲と前記計量手段によって検出された重量値とに基づいて、前記ホッパに収容された物品に欠け品が含まれているか否かを判定する欠け品判定手段（３５）と、
前記計量手段によって重量が検出された物品のうち、前記欠け品判定手段によって欠け品が含まれると判定された物品を除く組合せのなかから、所定の目標範囲となる組合せを選定する組合せ選定手段（３６）と、
前記組合せ選定手段によって組合せに選定された物品を前記ホッパから排出させる良品排出手段（３７）と、
前記欠け品判定手段によって欠け品が含まれていると判定された物品を前記ホッパから排出させる欠け品排出手段（３８）とを備え、
前記検出条件設定手段は、計量対象の物品に欠け品が含まれる混入確率を、検出条件として設定するように構成され、
前記判定用重量範囲算出手段は、前記良品重量確率分布を前記混入確率分とその他の分に分ける重量値を判定用重量範囲のリミット値として算出することを特徴としている。 Further, the combination weighing apparatus according to claim 2 of the present invention,
A plurality of hoppers (21) capable of accommodating and discharging articles;
Weighing means (23, 34) for detecting the weight of the articles accommodated in the hopper,
Unit information setting means (40) for setting the average weight and standard deviation of a single item to be weighed as unit information;
Detection condition setting means (41) for setting a detection condition for a missing item included in the non-defective product weight probability distribution for each number of articles obtained from the single unit information;
A weight range calculation unit for determination (42) for calculating a weight range for determination for determining whether or not a defective product to be detected is included based on the single unit information and the detection condition of the missing product;
Based on the determination weight range calculated by the determination weight range calculation means and the weight value detected by the weighing means, it is determined whether or not the article contained in the hopper contains a missing item. A missing item determination means (35);
Combination selection means for selecting a combination that falls within a predetermined target range from among the combinations whose weights are detected by the weighing means, excluding the articles that are determined to be missing by the missing article determination means. 36)
Non-defective product discharging means (37) for discharging the articles selected by the combination selecting means from the hopper;
A missing item discharge means (38) for discharging an article determined to be missing by the missing item determination means from the hopper,
The detection condition setting means is configured to set, as a detection condition, a mixing probability that a missing item is included in an item to be weighed,
The determination weight range calculation means calculates a weight value that divides the non-defective product weight probability distribution into the mixing probability portion and other portions as a limit value of the determination weight range.

また、本発明の請求項３の組合せ計量装置は、請求項１または請求項２の組合せ計量装置において、
表示器（３２）と、
前記検出条件の基で欠け品を含む物品の検出が可能な物品の上限数を前記ホッパに対する推奨供給数として算出する推奨供給数算出手段（４３）と、
前記推奨供給数算出手段によって算出された推奨供給数を前記表示器に表示する推奨供給数表示手段（４４）とを備えている。 Further, the combination weighing device according to claim 3 of the present invention is the combination weighing device according to claim 1 or 2 ,
An indicator (32);
A recommended supply number calculating means (43) for calculating, as a recommended supply number for the hopper, an upper limit number of articles capable of detecting an article including a missing item based on the detection condition;
Recommended supply number display means (44) for displaying the recommended supply number calculated by the recommended supply number calculation means on the display.

また、本発明の請求項４の組合せ計量装置は、請求項３の組合せ計量装置において、
前記複数のホッパに物品を供給する供給装置（２２）と、
前記各ホッパに供給される物品数が前記推奨供給数となるように前記供給装置を制御する供給制御手段（３９）とを備えている。 A combination weighing device according to claim 4 of the present invention is the combination weighing device according to claim 3 ,
A supply device (22) for supplying articles to the plurality of hoppers;
Supply control means (39) for controlling the supply device so that the number of articles supplied to each hopper becomes the recommended supply number.

このように構成したので、本発明の組合せ計量装置では、良品重量確率分布に含まれる欠け品に対して設定された検出条件に基づいて判定用重量範囲を算出して、欠け品が含まれるか否かを判定するので、所望の検出条件の欠け品検出が行なえる。   With this configuration, the combination weighing device of the present invention calculates the weight range for determination based on the detection condition set for the missing product included in the non-defective product weight probability distribution, and whether the missing product is included. Therefore, it is possible to detect a missing product under a desired detection condition.

また、検出条件の基で欠け品を含む物品の検出が可能な物品の上限数を前記物品受けに対する推奨供給数として算出し、表示する手段を有するものでは、作業者が欠け品を含むホッパを検出できる最大の物品供給数を正確に把握でき、供給作業や供給量設定作業等を的確に行なうことができる。   In addition, in the case of having a means for calculating and displaying the upper limit number of articles capable of detecting articles including missing articles based on the detection conditions as the recommended supply number for the article receiver, the hopper including the missing articles is provided by the operator. It is possible to accurately grasp the maximum supply number of articles that can be detected, and to accurately perform a supply operation, a supply amount setting operation, and the like.

また、複数の物品受けに物品を供給する供給装置を有し、各物品受けに供給される物品数が推奨供給数となるように供給装置を制御する手段を有するものでは、設定した条件による欠け品検出を能率的に行なうことができる。   In addition, in the case of having a supply device for supplying articles to a plurality of article receivers and having a means for controlling the supply apparatus so that the number of articles supplied to each article receiver becomes the recommended supply number, there is a lack due to the set conditions. Product detection can be performed efficiently.

検出対象の欠け品の欠損率範囲と、良品重量確率分布と欠け品重量確率分布との重複限度とを検出条件として設定することで、どの程度の欠け品を検出対象としているか直観的に判り、また、推奨供給数を求めて供給装置の供給量を制御することで、能率を低下させることなく欠け品を検出できる。   By setting the defect rate range of the missing item to be detected and the overlap limit of the non-defective product weight probability distribution and the missing product weight probability distribution as detection conditions, it is possible to intuitively determine how many missing items are targeted for detection, In addition, by obtaining the recommended number of supplies and controlling the supply amount of the supply device, it is possible to detect a missing product without reducing efficiency.

以下、図面に基づいて本発明の実施例を説明する。
図１は、本発明を適用した組合せ計量装置２０の構成を示している。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a configuration of a combination weighing device 20 to which the present invention is applied.

この組合せ計量装置２０の機構部は、底の開閉により物品の収容排出が可能な複数のホッパ２１、…、２１、各ホッパ２１に物品をそれぞれ供給する複数の供給装置２２、…、２２、各ホッパ２１に供給された物品に対する計量をそれぞれ行なうための複数の計量器２３、…、２３と、各ホッパ２１から排出される物品を集合排出する集合器２４とを有している。   The mechanism portion of the combination weighing device 20 includes a plurality of hoppers 21,..., 21 that can receive and discharge articles by opening and closing the bottom, a plurality of supply devices 22 that supply articles to each hopper 21,. .., 23 for weighing each of the articles supplied to the hopper 21, and an aggregator 24 for collecting and discharging the articles discharged from each hopper 21.

なお、図１では、シュート型の集合器２４を示しているが、コンベア型の集合器２４を用いてもよい。また、このシュート型の集合器２４には、欠け品を含まないと判定された良品と欠け品を含むと判定された不良品とを異なる排出経路に振り分けるための振り分け機構２４ａが設けられているが、コンベア型の集合器２４を用いる場合には、その搬送方向の切り換えで良品と不良品の排出経路を切り換えることができる。   In FIG. 1, the chute type collector 24 is shown, but a conveyor type collector 24 may be used. In addition, the chute type collector 24 is provided with a sorting mechanism 24a for sorting non-defective products determined not to contain missing products and defective products determined to contain missing products to different discharge paths. However, when the conveyor type collector 24 is used, it is possible to switch the discharge path between the non-defective product and the defective product by switching the transport direction.

各供給装置２２は、例えば振動搬送型のフィーダで構成され、振動時間あるいは振動振幅によってホッパ２１に対する物品の供給力が決定される。   Each supply device 22 is constituted by, for example, a vibration conveyance type feeder, and the supply force of the article to the hopper 21 is determined by the vibration time or the vibration amplitude.

各計量器２３は、後述するコントローラ３０の重量算出手段３４とともにこの実施例の計量手段を構成するものであり、それぞれホッパ２１を支持し、その支持しているホッパ２１とそのホッパに収容される物品の合計荷重に対応した計量信号をコントローラ３０に出力する。   Each weighing instrument 23 constitutes the weighing means of this embodiment together with the weight calculation means 34 of the controller 30 to be described later. Each weighing instrument 23 supports the hopper 21 and is accommodated in the supporting hopper 21 and the hopper. A weighing signal corresponding to the total load of the article is output to the controller 30.

コントローラ３０は、操作部３１、表示器３２およびマイクロコンピュータ構成の制御装置３３によって構成され、操作部の操作等によって少なくとも運転モードと設定モードの切り換えが可能となっている。   The controller 30 includes an operation unit 31, a display 32, and a control device 33 having a microcomputer configuration, and at least switching between an operation mode and a setting mode is possible by operation of the operation unit.

運転モードにおいては、各計量器２３からの計量信号に基づいて、重量検出処理、欠け品検出処理、組合せ選定処理、物品排出処理、物品供給処理等を行なう。   In the operation mode, a weight detection process, a missing part detection process, a combination selection process, an article discharge process, an article supply process, and the like are performed based on the weighing signal from each weighing instrument 23.

また、設定モードにおいては、操作部３１の操作を受けて、計量対象物品について運転に必要な各種パラメータの設定処理等を行なう。   Further, in the setting mode, in response to the operation of the operation unit 31, various parameter setting processes necessary for driving the article to be weighed are performed.

図２は制御装置３３の機能構成を示すものであり、始めに運転モードで機能する部分について説明する。   FIG. 2 shows a functional configuration of the control device 33. First, a portion that functions in the operation mode will be described.

重量算出手段３４は、対応するホッパ２１に物品が供給されていないときの各計量器２３から出力される計量信号をそのホッパ自量として内部のメモリ（図示せず）に記憶し、そのホッパ自量を物品が供給されたときの計量信号から減算して、物品の重量値を算出する。   The weight calculation means 34 stores a weighing signal output from each weighing instrument 23 when no article is supplied to the corresponding hopper 21 as its own quantity in an internal memory (not shown), and the hopper itself. The weight value of the article is calculated by subtracting the amount from the weighing signal when the article is supplied.

欠け品判定手段３５は、後述する判定用重量範囲算出手段４２によって予め算出された判定用重量範囲Ｈｒと重量計量手段３４によって検出された重量値Ｗｘとに基づいて、ホッパ２１に収容された物品に欠け品が含まれているか否かを判定する。   The missing item determination means 35 is an article housed in the hopper 21 based on the determination weight range Hr calculated in advance by the determination weight range calculation means 42 described later and the weight value Wx detected by the weight weighing means 34. It is determined whether or not there is a missing item.

即ち、重量値Ｗｘが判定用重量範囲Ｈｒにあれば、そのホッパ２１に収容されている物品に欠け品が含まれていると判定し、重量値Ｗｘが判定用重量範囲Ｈｒになければ、そのホッパ２１に収容されている物品に欠け品が含まれていないと判定する。   That is, if the weight value Wx is in the determination weight range Hr, it is determined that the article contained in the hopper 21 contains a missing item, and if the weight value Wx is not in the determination weight range Hr, It is determined that the article contained in the hopper 21 does not contain a missing item.

組合せ選定手段３６は、重量算出手段３４によって重量が算出された物品のうち、欠け品判定手段３５によって欠け品が含まれていると判定されたホッパを除く物品の組合せのなかから、予め設定された目標範囲となる組合せを選定する。なお、組合せの目標は、重量だけでなく個数でもよく、個数の場合には各ホッパ２１の物品の重量値を個数換算して組合せを選定する。   The combination selecting means 36 is set in advance from among the combinations of the articles whose weights are calculated by the weight calculating means 34 except the hoppers that are determined to be missing by the missing article determining means 35. Select a combination that satisfies the target range. The target of the combination may be not only the weight but also the number, and in the case of the number, the combination is selected by converting the weight value of the articles of each hopper 21 into the number.

良品排出手段３７は、組合せ選定手段３６によって組合せに選定された物品を収容しているホッパ２１を開閉させてその収容物品を集合器２４に排出させる。   The non-defective product discharging means 37 opens and closes the hopper 21 storing the articles selected by the combination selecting means 36 and discharges the stored articles to the collector 24.

欠け品排出手段３８は、所定のタイミング、例えば、欠け品判定手段３５によって欠け品を含むと判定されたホッパの総数が全ホッパ数の所定割合以上となったとき等に、良品排出手段３７による良品の排出を一時的に規制して、欠け品が含まれると判定されたホッパ２１を開閉させて集合器２４に排出させるととともに、振り分け機構２４ａを駆動して良品と異なる位置に集合排出させる。   The missing product discharge means 38 is used by the non-defective product discharge means 37 at a predetermined timing, for example, when the total number of hoppers determined to contain the missing product by the missing product determination means 35 becomes a predetermined ratio or more of the total number of hoppers. Temporarily restricting the discharge of non-defective products, opening and closing the hopper 21 that has been determined to contain a missing product and discharging it to the collector 24, and driving the sorting mechanism 24a to collect and discharge to a position different from the non-defective product .

供給制御手段３９は、良品排出手段３７および欠け品排出手段３８によってホッパ２１から物品が排出されたとき、その空になったホッパに対応する供給装置２２を駆動制御して新たな物品を供給させる。   When the article is discharged from the hopper 21 by the non-defective product discharge means 37 and the missing article discharge means 38, the supply control means 39 drives the supply device 22 corresponding to the empty hopper to supply a new article. .

なお、この供給制御手段３９は、各ホッパに対する物品の供給数が後述する推奨供給数算出手段４３によって算出された推奨供給数Ｐとなるように、各供給装置２２の供給力を制御する。   The supply control unit 39 controls the supply force of each supply device 22 so that the supply number of articles to each hopper becomes a recommended supply number P calculated by a recommended supply number calculation unit 43 described later.

次に、設定モードで機能する部分について説明する。
単体情報設定手段４０は、予め計量対象となる物品の単体の平均重量Ａと標準偏差σを単体情報として設定するためのものであり、例えば計量運転前に、物品の単体重量を所定数別の秤等で測定し、その平均重量Ａと標準偏差σを算出して、その算出値を操作部３１の操作によって設定記憶させる。 Next, the part which functions in the setting mode will be described.
The unit information setting means 40 is for setting the average weight A and the standard deviation σ of the single item to be weighed in advance as the single unit information. For example, before the weighing operation, the unit weight of the unit is set to a predetermined number. The average weight A and standard deviation σ are calculated with a scale or the like, and the calculated values are set and stored by operating the operation unit 31.

また、別の秤を用いずに、この計量装置２０のホッパ２１に計量対象物品を一つずつ供給して上記単体重量の測定を行い、コントローラ内部でその平均重量Ａと標準偏差σを算出してもよい。   Further, without using a separate scale, the articles to be weighed are supplied one by one to the hopper 21 of the weighing device 20 to measure the unit weight, and the average weight A and the standard deviation σ are calculated inside the controller. May be.

検出条件設定手段４１は、単体情報から得られる物品個数毎の良品重量確率分布に含まれる欠け品に対する検出条件を設定するためのものであり、例えば、検出対象の欠け品についての欠損率の範囲と、その欠損率の欠け品を含む物品の欠け品重量確率分布と良品重量確率分布との重複限度とを、検出条件として設定するように構成されている。   The detection condition setting means 41 is for setting a detection condition for a missing product included in the non-defective product weight probability distribution for each number of articles obtained from the single unit information. For example, the range of the missing rate for the missing product to be detected. And the overlap limit between the missing product weight probability distribution and the non-defective product weight probability distribution of the article including the missing product of the defect rate is set as a detection condition.

判定用重量範囲算出手段４２は、単体情報と欠け品の検出条件とに基づいて、検出対象の欠け品が含まれているか否か判定するための基準となる判定用重量範囲Ｈｒを算出するものであり、上記したように、欠け品の検出条件として、欠損率範囲と分布の重複限度が設定された場合には、欠損率範囲の欠け品を含む物品がとる重量範囲内で、且つ、良品重量確率分布と欠け品重量確率分布との重複度合いが予め設定されている重複限度内となる重量範囲を、判定用重量範囲Ｈｒとして算出する。なお、ここでは検出対象の欠け品が含まれると予想される重量範囲を判定用重量範囲としているが、逆にそれ以外の範囲、即ち、良品と予想される重量範囲を判定用重量範囲としてもよい。   The determination weight range calculating means 42 calculates a determination weight range Hr that serves as a reference for determining whether or not a detection target missing item is included based on the single unit information and the missing item detection condition. As described above, when the defect rate range and the overlap limit of distribution are set as the defect detection condition, it is within the weight range of the article including the defect rate range and the non-defective product. A weight range in which the degree of overlap between the weight probability distribution and the missing part weight probability distribution is within a preset overlap limit is calculated as the determination weight range Hr. In this case, the weight range that is expected to include the missing product to be detected is used as the judgment weight range. Conversely, the other range, that is, the weight range that is expected to be non-defective is also used as the judgment weight range. Good.

また、推奨供給数算出手段４３は、設定された欠け品の検出条件の基で欠け品を含む物品の検出が可能な物品の上限数を各ホッパ２１に対する推奨供給数Ｐとして算出し、推奨供給数表示手段４４は、この算出された推奨供給数Ｐを表示器３２に表示する。   The recommended supply number calculating means 43 calculates the upper limit number of articles that can detect an article including a missing product based on the set detection condition of the missing product as a recommended supply number P for each hopper 21, and recommends the recommended supply. The number display means 44 displays the calculated recommended supply number P on the display 32.

次に、この組合せ計量装置２０のコントローラ３０の設定モードにおける動作を説明する。   Next, the operation in the setting mode of the controller 30 of the combination weighing device 20 will be described.

予め計量対象物品についての単品情報（平均値Ａと標準偏差σの正規分布）が設定されているものとすると、それに基づく個数Ｎ毎の各重量確率分布Ｆ（Ｎ）は、図３に示すように、平均値がＮ倍、標準偏差がＮ１／２倍の正規分布となり、各重量確率分布がとる重量範囲Ｈ（Ｎ）は、
Ｈ（Ｎ）＝Ｎ・Ａ±４σ・Ｎ１／２
で定義することができる（係数３σとしてもよい）。 Assuming that single item information (normal distribution of average value A and standard deviation σ) is set in advance for the item to be weighed, each weight probability distribution F (N) for each number N based thereon is shown in FIG. In addition, a normal distribution with an average value of N times and a standard deviation of N 1/2 times, and the weight range H (N) taken by each weight probability distribution is
H (N) = N · A ± 4σ · N 1/2
(The coefficient may be 3σ).

なお、以下の説明では、これらの重量確率分布Ｆ（Ｎ）を、良品であればそのいずれかの分布に含まれるという意味で良品重量確率分布と呼ぶ。   In the following description, these weight probability distributions F (N) are referred to as non-defective product weight probability distributions in the sense that they are included in any of the distributions of non-defective products.

そして、検出条件設定手段４１によって、検出対象の欠け品の欠損率範囲（α〜１−α）と分布の重複限度βが設定される。ここでαは０より大きく０．５以下の任意の値、βは０より大きく０．５より小さい任意の値である。   Then, the detection condition setting means 41 sets the defect rate range (α to 1-α) of the missing product to be detected and the overlap limit β of the distribution. Here, α is an arbitrary value greater than 0 and less than or equal to 0.5, and β is an arbitrary value greater than 0 and less than 0.5.

この検出条件に対して、判定用重量範囲算出手段４２は、図３に示しているように、物品（Ｎ−α）個についての各重量確率分布Ｇ（Ｎ−α）がとる重量範囲の上限値Ｕ（Ｎ）と、（Ｎ−１＋α）個について重量確率分布Ｇ（Ｎ−１＋α）がとる重量範囲の下限値Ｌ（Ｎ）とを以下の演算で求める。   For this detection condition, as shown in FIG. 3, the determination weight range calculation means 42 is the upper limit of the weight range taken by each weight probability distribution G (N-α) for the article (N-α). The lower limit L (N) of the weight range taken by the weight probability distribution G (N-1 + α) for the value U (N) and (N-1 + α) is obtained by the following calculation.

Ｕ（Ｎ）＝（Ｎ−α）・Ａ＋４σ・（Ｎ−α）１／２
Ｌ（Ｎ）＝（Ｎ−１＋α）Ａ＋４σ・（Ｎ−１＋α）１／２ U (N) = (N−α) · A + 4σ · (N−α) 1/2
L (N) = (N-1 + α) A + 4σ · (N-1 + α) 1/2

この上限値Ｕ（Ｎ）と下限値Ｌ（Ｎ）とで決まる各範囲が、α〜１−αの欠損率範囲の欠け品が含まれる物品がとる欠け品重量範囲Ｈｎ（Ｎ）であり、これらの欠け品重量範囲Ｈｎ（Ｎ）のうち、その両端が良品重量確率分布Ｆ（Ｎ）の重量範囲Ｈ（Ｎ）と重複しているもの（図３では全て）で、且つ後述する重複限度を越えていないものについては、判定用重量範囲Ｈｒ（Ｎ）として欠け品の判定に用いる。   Each range determined by the upper limit value U (N) and the lower limit value L (N) is a missing product weight range Hn (N) taken by an article including a missing product having a defect rate range of α to 1-α. Of these missing product weight ranges Hn (N), both ends overlap with the weight range H (N) of the non-defective product weight probability distribution F (N) (all in FIG. 3), and the overlap limit described later. For those that do not exceed, the weight range for determination Hr (N) is used to determine missing parts.

また、図３に示していないが、標準偏差σが小さい場合や、αが１／２に近い場合で少ない個数領域では、欠け品重量範囲Ｈｎ（Ｎ）の少なくとも一端が良品重量確率分布Ｆ（Ｎ）と重複しない場合が生じる。このような個数領域においては、検出対象の欠け品の欠損率範囲をα〜１−αに無理に限定する必要はなく、欠け品重量範囲を良品重量確率分布Ｆ（Ｎ）がとる重量範囲の端まで延長して得られる範囲を判定用重量範囲Ｈｒとし、より広い範囲の欠損率の欠け品を検出できるようにする。   Although not shown in FIG. 3, in a small number region when the standard deviation σ is small or when α is close to ½, at least one end of the missing product weight range Hn (N) is a non-defective product weight probability distribution F ( N) may not overlap. In such a number region, it is not necessary to forcibly limit the defect rate range of the missing product to be detected to α to 1-α, and the missing product weight range is a weight range taken by the non-defective product weight probability distribution F (N). A range obtained by extending to the end is set as a weight range for determination Hr so that a missing product having a wider defect rate can be detected.

また、標準偏差σが大きい場合や、欠損率の範囲α〜１−αが広い場合で、物品個数Ｎが多くなると、良品重量確率分布Ｆ（Ｎ）がとる良品重量範囲Ｈ（Ｎ）と上記欠け品重量範囲Ｈｎ（Ｎ）との重複幅が大きくなり、良品を不良判定する確率が高くなり、計量効率の低下を招く。   When the standard deviation σ is large or the defect rate range α to 1-α is wide and the number N of articles increases, the non-defective product weight range H (N) taken by the non-defective product weight probability distribution F (N) The overlap width with the missing product weight range Hn (N) is increased, the probability of determining a defective product as a failure is increased, and the measurement efficiency is lowered.

そこで、検出条件として設定されている重複限度βによって欠け品重量範囲を制限して、判定用重量範囲Ｈｒを求める。   Therefore, the weight range for determination Hr is obtained by limiting the missing product weight range by the overlap limit β set as the detection condition.

即ち、図４のように、各良品重量確率分布Ｆ（Ｎ）を、βとその他（１−β）とに分ける重量値Ｑ（Ｎ）をそれぞれ求め、各欠け品重量範囲Ｈｎ（Ｎ）の上限値Ｕ（Ｎ）と比較し、例えば、図４の（ａ）のように、上限値Ｕ（Ｎ）がＱ（Ｎ）以下であれば、判定用重量範囲Ｈｒ（Ｎ）の上限値をＵ（Ｎ）とし、図４の（ｂ）のように、上限値Ｕ（Ｎ）がＱ（Ｎ）より大きい場合には、判定用重量範囲Ｈｒ（Ｎ）の上限値をＱ（Ｎ）とする。   That is, as shown in FIG. 4, the weight value Q (N) for dividing each non-defective product weight probability distribution F (N) into β and other (1-β) is obtained, and each missing product weight range Hn (N) is obtained. Compared to the upper limit value U (N), for example, as shown in FIG. 4A, if the upper limit value U (N) is equal to or less than Q (N), the upper limit value of the determination weight range Hr (N) is set. When the upper limit value U (N) is larger than Q (N) as shown in FIG. 4B, the upper limit value of the determination weight range Hr (N) is set to Q (N). To do.

また、推奨供給数算出手段４３は、欠損率範囲α〜１−αの欠け品を確実に検出することができる物品の上限数、即ち、前記重複限度βに対応する重量値Ｑ（Ｎ）で上限値が制限されない最大の個数を、各ホッパ２１に対する推奨供給数Ｐとして算出する。この値Ｐは、推奨供給数表示手段４４によって表示器３２に表示される。   Further, the recommended supply number calculating means 43 is an upper limit number of articles that can reliably detect a missing product in the defect rate range α to 1-α, that is, a weight value Q (N) corresponding to the overlap limit β. The maximum number for which the upper limit value is not limited is calculated as the recommended supply number P for each hopper 21. This value P is displayed on the display 32 by the recommended supply number display means 44.

このようにして、検出条件に対応した判定用重量範囲Ｈｒや推奨供給数Ｐ等が得られた後に、運転モードに移行すると、各ホッパ２１に対して供給装置２２から物品が供給され、その重量値がそれぞれ検出される。   In this way, after the determination weight range Hr corresponding to the detection condition, the recommended supply number P, and the like are obtained, when the operation mode is shifted, articles are supplied from the supply device 22 to the hoppers 21 and their weights. Each value is detected.

そして、検出された各重量値は欠け品判定手段３５に入力され、欠け品が含まれているか否かが判定用重量範囲Ｈｒに基づいて判定され、その判定結果が組合せ選定手段３６に出力される。   Then, each detected weight value is input to the missing item determination unit 35, whether or not a missing item is included is determined based on the determination weight range Hr, and the determination result is output to the combination selection unit 36. The

組合せ選定手段３６は、欠け品が含まれていると判定されたホッパを除く物品重量の組合せ演算を行い、その組合せ量が予め設定されている目標重量範囲（目標個数範囲でもよい）に入る組合せを選定して、その選定結果を排出制御手段３７に出力して、組合せに選定された物品を集合器２４に排出させる。   The combination selection means 36 performs a combination calculation of the article weights excluding the hopper determined to contain a missing item, and the combination amount falls within a preset target weight range (may be a target number range). Is selected, and the selection result is output to the discharge control means 37 to cause the collector 24 to discharge the articles selected for the combination.

また、物品が排出されて空になったホッパ２１には、対応する供給装置２２から新たな物品が供給され、前記同様に重量検出処理、欠け品判定処理、組合せ選定処理、排出処理が繰り返され、目標量の物品が順次排出されることになる。   Further, a new article is supplied from the corresponding supply device 22 to the empty hopper 21 after the article is discharged, and the weight detection process, the missing part determination process, the combination selection process, and the discharge process are repeated in the same manner as described above. The target amount of articles will be discharged sequentially.

そして、例えば、欠け品が含まれていると判定されたホッパの数が所定数になると、欠け品排出手段３８によって、その欠け品が含まれると判定されたホッパ２１から物品が排出され、集合器２４および振り分け機構２４ａを介して、良品と異なる位置に排出される。   Then, for example, when the number of hoppers determined to contain a missing product reaches a predetermined number, the articles are discharged from the hopper 21 determined to contain the missing product by the missing product discharge means 38 and assembled. It is discharged to a position different from the non-defective product via the container 24 and the sorting mechanism 24a.

このように、上記実施例の組合せ計量装置２０では、欠け品の検出条件を設定する手段と、その設定された条件に基づいて欠け品の有無を判定するための重量範囲を算出する手段とを有しているので、作業者が自由に設定した条件で欠け品を検出して除去できる。   As described above, in the combination weighing device 20 of the above-described embodiment, means for setting the detection condition of the missing product and means for calculating the weight range for determining the presence or absence of the missing product based on the set condition. Therefore, the missing product can be detected and removed under conditions freely set by the operator.

また、設定した検出条件の基で、確実に欠け品を検出できる最大の物品個数を算出して表示する手段を有しているので、物品の供給数の目標が正確に判り、供給装置２２の調整を容易に行なうことができる。   In addition, since it has means for calculating and displaying the maximum number of articles that can reliably detect missing articles based on the set detection conditions, the target of the number of articles supplied can be accurately determined, and the supply device 22 Adjustment can be performed easily.

なお、物品を人が手動投入する半自動型の組合せ計量装置の場合には、その推奨供給数通りに投入することで、欠け品の検出精度と能率とを両立させることができる。   In addition, in the case of a semi-automatic combination weighing device in which an article is manually input by a person, the detection accuracy and efficiency of a missing item can be made compatible by inputting according to the recommended supply number.

上記した組合せ計量装置２０では、検出条件設定手段４１によって設定する欠け品の検出条件として、欠損率範囲と分布の重複限度を用いていたが、計量対象物品に欠け品が含まれる混入確率が予め判っている場合には、その混入確率γを検出条件として設定することも可能である。   In the combination weighing device 20 described above, the defect rate range and the overlap limit of the distribution are used as the missing item detection conditions set by the detection condition setting unit 41. If it is known, the mixing probability γ can be set as a detection condition.

この場合、判定用重量範囲算出手段４２は、図５に示すように、良品の各重量確率分布Ｆ（Ｎ）を、γとその他（１−γ）に分ける重量値Ｕ（Ｎ）′、Ｌ（Ｎ）′をリミット値としてそれぞれ算出し、Ｎ−１個についての上側リミット値Ｕ（Ｎ−１）′からＮ個についての下側リミット値Ｌ（Ｎ）′までの範囲を、欠け品の有無を判定するための判定用重量範囲Ｈｒ（Ｎ）とする。   In this case, as shown in FIG. 5, the determination weight range calculation means 42 divides each non-defective weight probability distribution F (N) into γ and other (1-γ) weight values U (N) ′, L (N) ′ is calculated as a limit value, and the range from the upper limit value U (N−1) ′ for N−1 to the lower limit value L (N) ′ for N A determination weight range Hr (N) for determining the presence or absence is used.

なお、この場合、良品を不良判定する確率は混入率γに等しく、個数に関係なく一定であるが、個数が多くなると、重量確率分布Ｆ（Ｎ）同士が近づいて、その分布の重量範囲の重複が起こり、混入率γの領域が重複してしまう。   In this case, the probability of determining a good product as defective is equal to the mixing rate γ and is constant regardless of the number, but as the number increases, the weight probability distributions F (N) approach each other, and the weight range of the distribution Overlap occurs, and the area of the mixing rate γ overlaps.

したがって、この場合には、隣り合う良品重量確率分布Ｆ（Ｎ−１）、Ｆ（Ｎ）の重量範囲が重複しない最大の個数が推奨供給数Ｐとして求められる。   Therefore, in this case, the maximum number that does not overlap the weight ranges of the adjacent non-defective product weight probability distributions F (N−1) and F (N) is obtained as the recommended supply number P.

前記実施例の組合せ計量装置では、ホッパ２１に対する物品供給を供給装置２２によって自動で行なっているが、前記したように、人手によって複数のホッパに物品を供給する半自動型の組合せ計量装置についても本発明（請求項１〜４）を適用できる。   In the combination weighing device of the above-described embodiment, the supply of articles to the hopper 21 is automatically performed by the supply device 22. However, as described above, the semi-automatic combination weighing device that supplies articles to a plurality of hoppers manually is also provided. The invention (claims 1 to 4) can be applied.

本発明の実施例の全体構成図Overall configuration diagram of an embodiment of the present invention 実施例の要部構成図Main part configuration diagram of the embodiment 実施例の要部の動作を説明するための重量確率分布図Weight probability distribution diagram for explaining the operation of the main part of the embodiment 実施例の要部の動作を説明するための重量確率分布図Weight probability distribution diagram for explaining the operation of the main part of the embodiment 実施例の要部の動作を説明するための重量確率分布図Weight probability distribution diagram for explaining the operation of the main part of the embodiment

符号の説明Explanation of symbols

２０……組合せ計量装置、２１……ホッパ、２２……供給装置、２３……計量器、２４……集合器、３０……コントローラ、３１……操作部、３２……表示器、３３……制御装置、３４……重量算出手段、３５……欠け品判定手段、３６……組合せ選定手段、３７……良品排出手段、３８……欠け品排出手段、３９……供給制御手段、４０……単体情報設定手段、４１……検出条件設定手段、４２……判定用重量範囲算出手段、４３……推奨供給数算出手段、４４……推奨供給数表示手段   20 …… Combination weighing device, 21 …… Hopper, 22 …… Supply device, 23 …… Weighing device, 24 …… Collector, 30 …… Controller, 31 …… Operating unit, 32 …… Display, 33 …… Control device 34... Weight calculation means 35... Missing product determination means 36... Combination selection means 37 .. Non-defective product discharge means 38 38 Defective product discharge means 39 39 Supply control means 40. Single unit information setting means 41... Detection condition setting means 42... Weight range calculating means 43. Recommended supply number calculating means 44. Recommended supply number display means

Claims (4)

物品の収容排出が可能な複数のホッパ（２１）と、
前記ホッパに収容された物品の重量をそれぞれ検出する計量手段（２３、３４）と、
計量対象物品の単体の平均重量と標準偏差とを単体情報として設定するための単体情報設定手段（４０）と、
前記単体情報から得られる物品個数毎の良品重量確率分布に含まれる欠け品に対する検出条件を設定するための検出条件設定手段（４１）と、
前記単体情報と前記欠け品の検出条件とに基づいて、検出対象の欠け品を含むか否かを判定するための判定用重量範囲を算出する判定用重量範囲算出手段（４２）と、
前記判定用重量範囲算出手段によって算出された判定用重量範囲と前記計量手段によって検出された重量値とに基づいて、前記ホッパに収容された物品に欠け品が含まれているか否かを判定する欠け品判定手段（３５）と、
前記計量手段によって重量が検出された物品のうち、前記欠け品判定手段によって欠け品が含まれると判定された物品を除く組合せのなかから、所定の目標範囲となる組合せを選定する組合せ選定手段（３６）と、
前記組合せ選定手段によって組合せに選定された物品を前記ホッパから排出させる良品排出手段（３７）と、
前記欠け品判定手段によって欠け品が含まれていると判定された物品を前記ホッパから排出させる欠け品排出手段（３８）とを備え、
前記検出条件設定手段は、検出対象の欠け品についての欠損率の範囲と、該欠損率の欠け品を含む物品の欠け品重量確率分布と前記良品重量確率分布との重複限度とを、検出条件として設定するように構成され、
前記判定用重量範囲算出手段は、設定された欠損率範囲の欠け品を含む物品がとる重量範囲内で、且つ、前記良品重量確率分布と欠け品重量確率分布との重複度合いが前記限度内となる重量範囲を判定用重量範囲として算出することを特徴とする組合せ計量装置。 A plurality of hoppers (21) capable of accommodating and discharging articles;
Weighing means (23, 34) for detecting the weight of the articles accommodated in the hopper,
Unit information setting means (40) for setting the average weight and standard deviation of a single item to be weighed as unit information;
Detection condition setting means (41) for setting a detection condition for a missing item included in the non-defective product weight probability distribution for each number of articles obtained from the single unit information;
A weight range calculation unit for determination (42) for calculating a weight range for determination for determining whether or not a defective product to be detected is included based on the single unit information and the detection condition of the missing product;
Based on the determination weight range calculated by the determination weight range calculation means and the weight value detected by the weighing means, it is determined whether or not the article contained in the hopper contains a missing item. A missing item determination means (35);
Combination selection means for selecting a combination that falls within a predetermined target range from among the combinations whose weights are detected by the weighing means, excluding the articles that are determined to be missing by the missing article determination means. 36)
Non-defective product discharging means (37) for discharging the articles selected by the combination selecting means from the hopper;
A missing item discharge means (38) for discharging an article determined to be missing by the missing item determination means from the hopper ,
The detection condition setting means is configured to detect a range of a defect rate for a defective product to be detected, and an overlap limit between a missing product weight probability distribution of an article including the defective product having the defect rate and the non-defective product weight probability distribution. Configured to set as
The determination weight range calculation means is within a weight range taken by an article including a missing product within a set defect rate range, and the degree of overlap between the non-defective product weight probability distribution and the missing product weight probability distribution is within the limit. A weight measuring device is calculated as a weight range for determination . 物品の収容排出が可能な複数のホッパ（２１）と、
前記ホッパに収容された物品の重量をそれぞれ検出する計量手段（２３、３４）と、
計量対象物品の単体の平均重量と標準偏差とを単体情報として設定するための単体情報設定手段（４０）と、
前記単体情報から得られる物品個数毎の良品重量確率分布に含まれる欠け品に対する検出条件を設定するための検出条件設定手段（４１）と、
前記単体情報と前記欠け品の検出条件とに基づいて、検出対象の欠け品を含むか否かを判定するための判定用重量範囲を算出する判定用重量範囲算出手段（４２）と、
前記判定用重量範囲算出手段によって算出された判定用重量範囲と前記計量手段によって検出された重量値とに基づいて、前記ホッパに収容された物品に欠け品が含まれているか否かを判定する欠け品判定手段（３５）と、
前記計量手段によって重量が検出された物品のうち、前記欠け品判定手段によって欠け品が含まれると判定された物品を除く組合せのなかから、所定の目標範囲となる組合せを選定する組合せ選定手段（３６）と、
前記組合せ選定手段によって組合せに選定された物品を前記ホッパから排出させる良品排出手段（３７）と、
前記欠け品判定手段によって欠け品が含まれていると判定された物品を前記ホッパから排出させる欠け品排出手段（３８）とを備え、
前記検出条件設定手段は、計量対象の物品に欠け品が含まれる混入確率を、検出条件として設定するように構成され、
前記判定用重量範囲算出手段は、前記良品重量確率分布を前記混入確率分とその他の分に分ける重量値を判定用重量範囲のリミット値として算出することを特徴とする組合せ計量装置。 A plurality of hoppers (21) capable of accommodating and discharging articles;
Weighing means (23, 34) for detecting the weight of the articles accommodated in the hopper,
Unit information setting means (40) for setting the average weight and standard deviation of a single item to be weighed as unit information;
Detection condition setting means (41) for setting a detection condition for a missing item included in the non-defective product weight probability distribution for each number of articles obtained from the single unit information;
A weight range calculation unit for determination (42) for calculating a weight range for determination for determining whether or not a defective product to be detected is included based on the single unit information and the detection condition of the missing product;
Based on the determination weight range calculated by the determination weight range calculation means and the weight value detected by the weighing means, it is determined whether or not the article contained in the hopper contains a missing item. A missing item determination means (35);
Combination selection means for selecting a combination that falls within a predetermined target range from among the combinations whose weights are detected by the weighing means, excluding the articles that are determined to be missing by the missing article determination means. 36)
Non-defective product discharging means (37) for discharging the articles selected by the combination selecting means from the hopper;
A missing item discharge means (38) for discharging an article determined to be missing by the missing item determination means from the hopper,
The detection condition setting means is configured to set, as a detection condition, a mixing probability that a missing item is included in an item to be weighed,
The determination weight range calculation means calculates a weight value that divides the non-defective product weight probability distribution into the mixing probability and other parts as a limit value of the determination weight range . 表示器（３２）と、
前記検出条件の基で欠け品を含む物品の検出が可能な物品の上限数を前記ホッパに対する推奨供給数として算出する推奨供給数算出手段（４３）と、
前記推奨供給数算出手段によって算出された推奨供給数を前記表示器に表示する推奨供給数表示手段（４４）とを備えた請求項１または請求項２記載の組合せ計量装置。 An indicator (32);
A recommended supply number calculating means (43) for calculating, as a recommended supply number for the hopper, an upper limit number of articles capable of detecting an article including a missing item based on the detection condition;
The combination weighing device according to claim 1 or 2, further comprising a recommended supply number display means (44) for displaying the recommended supply number calculated by the recommended supply number calculation means on the display . 前記複数のホッパに物品を供給する供給装置（２２）と、
前記各ホッパに供給される物品数が前記推奨供給数となるように前記供給装置を制御する供給制御手段（３９）とを備えた請求項３記載の組合せ計量装置。 A supply device (22) for supplying articles to the plurality of hoppers;
The combination weighing device according to claim 3, further comprising a supply control means (39) for controlling the supply device so that the number of articles supplied to each hopper becomes the recommended supply number .
JP2003328413A 2003-09-19 2003-09-19 Combination weighing device Expired - Fee Related JP4126259B2 (en)

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