JPS6112523B2 - - Google Patents

Info

Publication number
JPS6112523B2
JPS6112523B2 JP55002895A JP289580A JPS6112523B2 JP S6112523 B2 JPS6112523 B2 JP S6112523B2 JP 55002895 A JP55002895 A JP 55002895A JP 289580 A JP289580 A JP 289580A JP S6112523 B2 JPS6112523 B2 JP S6112523B2
Authority
JP
Japan
Prior art keywords
zero point
point correction
supplied
combination
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
Application number
JP55002895A
Other languages
Japanese (ja)
Other versions
JPS56100318A (en
Inventor
Takashi Hirano
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.)
Yamato Scale Co Ltd
Original Assignee
Yamato Scale 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 Yamato Scale Co Ltd filed Critical Yamato Scale Co Ltd
Priority to JP289580A priority Critical patent/JPS56100318A/en
Priority to AU65924/80A priority patent/AU520013B2/en
Priority to GB8100808A priority patent/GB2070362B/en
Priority to FR8100439A priority patent/FR2473705A1/en
Priority to IT67032/81A priority patent/IT1172219B/en
Priority to DE3100917A priority patent/DE3100917C2/en
Publication of JPS56100318A publication Critical patent/JPS56100318A/en
Publication of JPS6112523B2 publication Critical patent/JPS6112523B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/14—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated
    • G01G23/16—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated electrically or magnetically operated
    • G01G23/163—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated electrically or magnetically operated involving digital counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/24—Weighing mechanism control arrangements for automatic feed or discharge
    • G01G13/28—Weighing mechanism control arrangements for automatic feed or discharge involving variation of an electrical variable which is used to control loading or discharge of the receptacle
    • G01G13/285—Weighing mechanism control arrangements for automatic feed or discharge involving variation of an electrical variable which is used to control loading or discharge of the receptacle involving comparison with a reference value
    • G01G13/2851—Weighing mechanism control arrangements for automatic feed or discharge involving variation of an electrical variable which is used to control loading or discharge of the receptacle involving comparison with a reference value for controlling automatic loading of weigh pans or other receptacles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
    • G01G19/34—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them with electrical control means
    • G01G19/346—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them with electrical control means involving comparison with a reference value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

Description

【発明の詳細な説明】 この発明は、菓子や飴等の複数の固形物をほぼ
一定重量づつ袋等に詰める際に使用する組合せ秤
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combination scale used when packing a plurality of solid objects, such as sweets and candies, into bags or the like at substantially constant weights.

従来、組合せ秤には複数の計量槽に各々被計量
物を収容し、これら計量槽に各々設けた例えばロ
ードセルのような重量検出器によつて被計量物品
の重量を検出し、重量検出器の出力を順次組合
せ、これら組合せの中から組合された重量検出器
の出力の和が予め定めた設定重量に等しいかこれ
に近いものを選択する組合せ演算を行ない、その
選択された組合せを構成する各計量槽から被計量
物品を排出して、袋等に詰めると共に、計量槽に
は新たな被計量物品を投入し、再び組合せ演算を
行なうことを繰返すものがあつた。 Conventionally, in combination scales, objects to be weighed are stored in a plurality of weighing tanks, and the weight of the objects to be weighed is detected by a weight detector such as a load cell installed in each of these weighing tanks. The outputs are sequentially combined, and a combination calculation is performed to select from among these combinations the sum of the outputs of the combined weight detectors that is equal to or close to a predetermined set weight, and each of the combinations constituting the selected combination is In some cases, the article to be weighed is discharged from the weighing tank and packed into a bag or the like, and a new article to be weighed is put into the weighing tank, and the combination calculation is repeated again.

この組合せ秤に使用されている重量検出器の出
力は温度、湿度の変化によつて生じる零ドリフト
や被計量物を計量槽から排出したとき計量槽に付
着して残つた被計量物品によるイニシヤル荷重等
の変化によつて、零点が変動することがあるの
で、零点補正をする必要がある。そこで、各重量
検出器に零点補正装置が設けられているが、従来
のものでは零点補正をするには、いつたん組合せ
秤を停止させ、全ての計量槽を空にした状態で、
手動で各零点補正装置をいちいち調整してから、
空である全ての計量槽に再び被計量物品を供給し
なければならず、稼動率の低下をきたしていた。
すなわち、上記の作業を行なうためには、計量槽
や例えば10台の場合、少なくとも10分程度はかか
るが、組合せ秤は、一般に供給、組合せ演算及び
排出を１分間に少なくとも60回程度行なうので、
約10分の停止は、かなりの稼動率の低下となる。
また、全ての計量槽を上述したように全て空にし
た後、各零点補正装置を自動的に同時に動作させ
て、零点補正することも考えられるが、これでも
上述したように全ての計量器をいつたん空にする
ため組合せ秤を停止させる必要があり、また零点
補正完了後に空になつた全ての計量槽に被計量物
品を供給しなければならない。そのため、零点補
正を手動で行なう場合よりは組合せ秤を停止して
から組合せ演算を再開できるまでの時間は減少さ
せることができるが、それでも少なくとも２〜３
分は停止させなければならず、稼動率の低下はい
なめない。このような零点補正は、１日のうち２
〜３回行なう必要があるので、益々稼動率の低下
が大きくなる。特に被計量物品が計量槽に付着し
やすいものの場合、零点補正を行なう回数は、上
記の回数よりもさらに多くしなければならず、
益々稼動率が低下する。 The output of the weight detector used in this combination scale is the zero drift caused by changes in temperature and humidity, and the initial load caused by the objects to be weighed that remain on the weighing tank when they are discharged from the weighing tank. Since the zero point may fluctuate due to changes such as the following, it is necessary to perform zero point correction. Therefore, each weight detector is equipped with a zero point correction device, but in order to perform zero point correction with conventional weight detectors, the combination scale must be stopped and all weighing tanks emptied.
After manually adjusting each zero point correction device one by one,
All empty weighing tanks had to be re-supplied with articles to be weighed, resulting in a decrease in operating efficiency.
In other words, it takes at least 10 minutes to perform the above operation in the case of 10 weighing tanks, but in general, combination scales perform feeding, combination calculation, and discharge at least 60 times per minute.
Approximately 10 minutes of outage will result in a significant drop in operating efficiency.
It is also possible to perform zero point correction by automatically operating each zero point correction device at the same time after all the measuring tanks are emptied as described above, but even in this case, all the measuring vessels are emptied as described above. It is necessary to stop the combination scale for emptying, and it is also necessary to supply objects to be weighed to all empty weighing tanks after the zero point correction is completed. Therefore, the time required from stopping the combination balance to restarting the combination calculation can be reduced compared to when zero point correction is performed manually, but it still takes at least 2 to 3
We have to stop for a few minutes, so we cannot ignore the drop in operating rate. This kind of zero point correction is carried out twice in one day.
Since it is necessary to perform this process ~3 times, the reduction in the operating rate becomes even greater. In particular, if the item to be weighed is likely to adhere to the weighing tank, the number of zero point corrections must be greater than the number of times mentioned above.
The operating rate is decreasing more and more.

この発明は、稼動率の低下をきたすことなく、
零点補正を行なえる組合せ秤を提供することを目
的とする。 This invention does not cause a decrease in operating rate.
The object of the present invention is to provide a combination weigher that can perform zero point correction.

以下、この発明を図示の４つの実施例に基づい
て説明する。第１図及び第２図は第１の実施例
で、第１図において、２ａ乃至２ｎは計量槽で、
各々排出ゲート４を有している。これら排出ゲー
ト４を介してこれら計量槽２ａ乃至２ｎの下方に
配置した集合シユート６に被計量物品を排出す
る。これら各計量槽２ａ乃至２ｎの上方にはそれ
ぞれ投入装置８ａ乃至８n′が設けられており、
各々投入ゲート１０を介して計量槽２ａ乃至２ｎ
に被計量物品を投入する。これら投入装置８ａ乃
至８ｎの上方には取込み装置１２の取込みゲート
１４ａ乃至１４ｎが位置しており、取込みゲート
１４ａ乃至１４ｎを介して被計量物品を投入装置
８ａ乃至８ｎに投入する。排出ゲート４、投入ゲ
ート１０及び取込みゲート１４ａ乃至１４ｎは、
各計量槽２ａ乃至２ｎごとに設けたゲート制御部
１６ａ乃至１６ｎによつて開閉制御される。 The present invention will be explained below based on four illustrated embodiments. Figures 1 and 2 show the first embodiment, and in Figure 1, 2a to 2n are measuring tanks;
Each has a discharge gate 4. The articles to be weighed are discharged through these discharge gates 4 to a collection chute 6 arranged below these weighing tanks 2a to 2n. Feeding devices 8a to 8n' are provided above each of these measuring tanks 2a to 2n, respectively.
Each of the measuring tanks 2a to 2n is
Place the item to be weighed into the Intake gates 14a to 14n of the inlet device 12 are located above these inlet devices 8a to 8n, and articles to be weighed are inputted into the inlet devices 8a to 8n via the inlet gates 14a to 14n. The discharge gate 4, the input gate 10, and the intake gates 14a to 14n are
Opening and closing are controlled by gate control units 16a to 16n provided for each of the measuring tanks 2a to 2n.

各計量槽２ａ乃至２ｎには重量検出器１８ａ乃
至１８ｎが各々設けられており、各計量槽２ａ乃
至２ｎに収容されている被計量物品の重量に対応
する出力を発生する。これら各出力は零点補正部
２０ａ乃至２０ｎを介して組合せ制御部２２に供
給される。組合せ制御部２２は、これら出力を予
め定めた組合せに基づいて順次組合せてゆき、そ
の組合された出力の和が設定重量の許容範囲内に
ある組合せを記憶してゆき、全ての組合せ終了
後、記憶された組合せのうち設定重量に等しいか
最も近い組合せを選択し、ゲート制御部１６ａ乃
至１６ｎのうち選択された組合せを構成する計量
槽に対応するものに制御信号を供給して、排出ゲ
ート４、投入ゲート１０及び取込みゲート１４ａ
乃至１４ｎを開閉制御する。なお、２４は零点補
正開始信号を発生させるためのスイツチである。 Each weighing tank 2a to 2n is provided with a weight detector 18a to 18n, respectively, which generates an output corresponding to the weight of the article to be weighed contained in each weighing tank 2a to 2n. Each of these outputs is supplied to the combination control section 22 via the zero point correction sections 20a to 20n. The combination control section 22 sequentially combines these outputs based on predetermined combinations, stores combinations in which the sum of the combined outputs is within the allowable range of the set weight, and after all combinations are completed, Among the stored combinations, a combination that is equal to or closest to the set weight is selected, and a control signal is supplied to one of the gate control units 16a to 16n corresponding to the weighing tank constituting the selected combination, and the discharge gate 4 is , input gate 10 and intake gate 14a
Controls the opening and closing of 14n to 14n. Note that 24 is a switch for generating a zero point correction start signal.

第２図に排出ゲート制御部１６ａ及び零点補正
部２０ａのブロツク図を示す。他のゲート制御部
１６６ｂ乃至１６ｎ及び零点補正部２０ｂ乃至２
０ｎも同一に構成されているので、その説明は省
略する。同図において、零点補正部２０ａは加減
算増幅器２６を有している。この加減算増幅器２
６の出力は零点補正出力発生装置２８と組合せ制
御部２２とに供給されている。この加減算増幅器
２６の＋側入力端子には重量検出器１８ａの出力
が入力され、−側入力端子には零点補正出力発生
装置２８の出力が入力される。この零点補正出力
発生装置２８は、アンド回路３０からの起動信号
によつて加減算増幅器２６の出力が零になるよう
に作動し、組合せ制御部２２からの停止パルスに
よつてそのときの出力を加減算増幅器２６に維持
して供給するものである。 FIG. 2 shows a block diagram of the discharge gate control section 16a and the zero point correction section 20a. Other gate control units 166b to 16n and zero point correction units 20b to 2
Since 0n also has the same configuration, its explanation will be omitted. In the figure, the zero point correction section 20a has an addition/subtraction amplifier 26. This addition/subtraction amplifier 2
The output of 6 is supplied to the zero point correction output generator 28 and the combination control section 22. The output of the weight detector 18a is input to the + side input terminal of the addition/subtraction amplifier 26, and the output of the zero point correction output generator 28 is input to the - side input terminal. This zero point correction output generation device 28 operates so that the output of the addition/subtraction amplifier 26 becomes zero by a start signal from the AND circuit 30, and adds/subtracts the current output by a stop pulse from the combination control section 22. It is maintained and supplied to the amplifier 26.

３２は起動メモリで、そのセツト端子にはスイ
ツチ２４を閉成することによつて発生する零点補
正指令信号が供給される。この起動メモリ３２の
出力は否定回路３４を介してゲート制御部１６ａ
のアンド回路３６，３８に供給される。これらア
ンド回路３６，３８には組合せ制御部２２より取
込み信号、投入信号が供給される。このアンド回
路３６の出力は投入ゲート１０に供給され、アン
ド回路３８の出力は取込みゲート１４ａに供給さ
れる。排出ゲート４には電力増幅器４４を介して
組合せ制御部２２より排出信号が入力される。 Reference numeral 32 denotes a starting memory, to whose set terminal a zero point correction command signal generated by closing the switch 24 is supplied. The output of this startup memory 32 is passed through the inverter 34 to the gate controller 16a.
The signal is supplied to AND circuits 36 and 38. These AND circuits 36 and 38 are supplied with a take-in signal and an input signal from the combination control section 22. The output of the AND circuit 36 is supplied to the input gate 10, and the output of the AND circuit 38 is supplied to the take-in gate 14a. A discharge signal is input to the discharge gate 4 from the combination control section 22 via a power amplifier 44 .

起動メモリ３２の出力は否定回路４６を介して
排出完了メモリ４８のリセツト端子に供給され、
直接にアンド回路５０の入力側に供給される。こ
のアンド回路５０には電力増幅器４４の出力も供
給され、このアンド回路５０の出力は排出完了メ
モリ４８のセツト端子に供給される。この排出完
了メモリ４８の出力はアンド回路３０，５２の入
力側に供給される。このアンド回路３０の入力側
には組合せ制御部２２から起動パルスも供給さ
れ、アンド回路５２の入力側には組合せ制御部２
２から停止パルスも供給される。 The output of the start-up memory 32 is supplied to the reset terminal of the ejection completion memory 48 via an inverting circuit 46;
It is directly supplied to the input side of the AND circuit 50. The output of the power amplifier 44 is also supplied to the AND circuit 50, and the output of the AND circuit 50 is supplied to the set terminal of the discharge completion memory 48. The output of this discharge completion memory 48 is supplied to the input sides of AND circuits 30 and 52. A starting pulse is also supplied to the input side of the AND circuit 30 from the combination control section 22, and the input side of the AND circuit 52 is supplied with the activation pulse from the combination control section 22.
A stop pulse is also supplied from 2.

なお、零点補正指令信号は、この起動メモリ３
２に供給されたとき同時に他の零点補正部の起動
メモリ３２にも供給される。また、停止パルスも
同様に他の零点補正部の零点補正出力発生装置２
８及びアンド回路５２に供給される。さらに、起
動パルスも同様に他の零点補正部のアンド回路３
０にも供給される。 Note that the zero point correction command signal is stored in this startup memory 3.
2, it is simultaneously supplied to the startup memory 32 of the other zero point correction section. Similarly, the stop pulse is also generated by the zero point correction output generator 2 of the other zero point correction section.
8 and an AND circuit 52. Furthermore, the starting pulse is also applied to the AND circuit 3 of the other zero point correction section.
0 is also supplied.

次に、このように構成した組合せ秤の動作を説
明する、今、計量槽２ａ乃至２ｎ、投入装置８ａ
乃至８ｎ及び取込み装置１２には被計量物品が投
入されており、スイツチ２４は開放されていると
する。従つて、起動メモリ３２の出力は「０」で
あり、否定回路３４，４６の出力は各々「１」
で、アンド回路３６，３８には出力「１」が各々
供給されており、排出完了メモリ４８はリセツト
されている。この状態において、組合せ制御部２
２によつて計量槽２ａ，２ｎが選択されると、組
合せ制御部２２はゲート制御部１６ａ，１６ｎに
排出信号を供給する。この排出信号は電力増幅器
４４を介して排出ゲート４に供給され、計量槽２
ａ，２ｎの排出ゲートが開かれ、計量槽２ａ、２
ｎの被計量物品が集合シユート６に排出される。
なお、この制御信号は、アンド回路５０にも供給
されるが、起動メモリ３２の出力が「０」である
こと及び排出完了メモリ４８がリセツトされてい
ることにより、排出完了メモリ４８には記憶され
ない。 Next, the operation of the combination weigher configured as described above will be explained.
It is assumed that articles to be weighed are loaded into the devices 8n to 8n and the take-in device 12, and the switch 24 is open. Therefore, the output of the startup memory 32 is "0", and the outputs of the NOT circuits 34 and 46 are each "1".
The output "1" is supplied to the AND circuits 36 and 38, and the discharge completion memory 48 is reset. In this state, the combination control unit 2
When the metering tanks 2a, 2n are selected by 2, the combination control section 22 supplies a discharge signal to the gate control sections 16a, 16n. This discharge signal is supplied to the discharge gate 4 via the power amplifier 44, and the metering tank 2
The discharge gates a and 2n are opened, and the measuring tanks 2a and 2n are
n articles to be weighed are discharged to the collection chute 6.
Although this control signal is also supplied to the AND circuit 50, it is not stored in the ejection completion memory 48 because the output of the startup memory 32 is "0" and the ejection completion memory 48 has been reset. .

排出ゲート４に排出信号が供給されて、所定時
間T1経過すると、排出ゲート４が閉じられ、組
合せ制御部２２より投入信号が供給されアンド回
路３６を介して投入ゲート１０に供給され、投入
装置８ａ，８ｎの投入ゲート１０が開かれ、計量
槽２ａ，２ｎに新たに被計量物品が投入される。
同様に排出信号が供給されてから所定時間T2
（T2＞T1）経過後、投入ゲート１０が閉じられ、
取込みゲート１４ａ，１４ｎが開かれ、投入装置
８ａ，８ｎに新たな被計量物品が取込まれ、取込
みが終了すると取込みゲート１４ａ，１４ｎが閉
じられる。なお、組合せ制御部２２は排出ゲート
４が閉じられると、再び各重量検出器１８ａ乃至
１８ｎの出力に基づいて組合せを実行し、以後同
様に動作する。 When the ejection signal is supplied to the ejection gate 4 and a predetermined time T1 has elapsed, the ejection gate 4 is closed, and the input signal is supplied from the combination control section 22 and supplied to the input gate 10 via the AND circuit 36, and the input device The input gates 8a and 8n are opened, and new articles to be weighed are loaded into the weighing tanks 2a and 2n.
Similarly, the predetermined time T 2 after the discharge signal is supplied
After (T 2 > T 1 ), the input gate 10 is closed,
The intake gates 14a, 14n are opened, a new article to be weighed is loaded into the loading devices 8a, 8n, and when the loading is completed, the intake gates 14a, 14n are closed. Note that when the discharge gate 4 is closed, the combination control section 22 executes the combination again based on the outputs of the respective weight detectors 18a to 18n, and thereafter operates in the same manner.

スイツチ２４が閉成された状態で、すなわち各
零点補正部２０ａ乃至２０ｎの起動メモリ３２の
出力が「１」の状態で、組合せが終了し、計量槽
２ａ，２ｎが選択されると、上述したのと同様に
して計量槽２ａ，２ｎの排出ゲート４が開かれ、
集合シユート６に排出されるが、否定回路３４の
出力が「０」であるので、投入ゲート１０、取込
みゲート１４ａ，１４ｎを開くことは禁止され
る。さらに、否定回路４６の出力が「０」である
ので排出完了メモリ４８のリセツトは解除されて
おり、起動メモリ３２の出力が「１」であるの
で、電力増幅器４４からの制御信号が排出完了メ
モリ４８の出力を「１」にする。そして、排出ゲ
ート４を介して計量槽２ａ，２ｎ内の被計量物品
が集合シユート６に排出された後、組合せ制御部
２２は起動パルスをアンド回路３０に供給する。
従つて、排出完了メモリ４８の出力「１」はアン
ド回路３０を介して零点補正出力発生装置２８に
供給され、零点補正出力発生装置２８が作動す
る。零点補正出力発生装置２８は、加減算増幅器
２６の出力を検出して、これが０となる出力を加
減算増幅器２６の一側入力端子に供給する。この
とき、計量槽２ａ，２ｎには被計量物品が投入さ
れていないので、零点補正がなされたことにな
る。この零点補正が完了した後に、組合せ制御部
２２は停止パルスを零点補正出力発生装置２８に
供給し、以後零点補正出力発生装置２８にその出
力を維持させて、加減算増幅器２６に供給させ
る。この停止パルスは同時にアンド回路５２にも
供給され、アンド回路５２を介して排出完了メモ
リ４８の出力「１」が起動メモリ３２のリセツト
端子に供給され、この起動メモリ３２はリセツト
される。 When the combination is completed and the measuring tanks 2a, 2n are selected with the switch 24 closed, that is, with the output of the startup memory 32 of each zero point correction unit 20a to 20n being "1", the above-mentioned The discharge gates 4 of the measuring tanks 2a and 2n are opened in the same manner as in
Although it is discharged to the collection chute 6, since the output of the NOT circuit 34 is "0", opening the input gate 10 and the intake gates 14a and 14n is prohibited. Further, since the output of the negative circuit 46 is "0", the reset of the discharge completion memory 48 has been released, and since the output of the startup memory 32 is "1", the control signal from the power amplifier 44 is set to the discharge completion memory 48. Set the output of 48 to "1". After the articles to be weighed in the weighing tanks 2a, 2n are discharged to the collection chute 6 via the discharge gate 4, the combination control section 22 supplies a starting pulse to the AND circuit 30.
Therefore, the output "1" of the discharge completion memory 48 is supplied to the zero point correction output generation device 28 via the AND circuit 30, and the zero point correction output generation device 28 is activated. The zero point correction output generator 28 detects the output of the addition/subtraction amplifier 26 and supplies an output that becomes 0 to one input terminal of the addition/subtraction amplifier 26 . At this time, since no articles to be weighed are placed in the weighing tanks 2a, 2n, zero point correction has been performed. After this zero point correction is completed, the combination control section 22 supplies a stop pulse to the zero point correction output generator 28, and thereafter causes the zero point correction output generator 28 to maintain its output and supply it to the addition/subtraction amplifier 26. This stop pulse is also supplied to the AND circuit 52 at the same time, and the output "1" of the discharge completion memory 48 is supplied to the reset terminal of the startup memory 32 via the AND circuit 52, and this startup memory 32 is reset.

なお、組合せ制御部２２は排出ゲート４が閉じ
られると、計量槽２ａ，２ｎ以外の計量槽だけで
組合せを実行している。そして、この組合せがす
べて実行された後、その組合せで選択された計量
槽のゲート制御部に制御信号を供給すると共に、
ゲート制御部１６ａ，１６ｎにも制御信号を供給
し、被計量物品を投入し、以後の組合せに計量槽
２ａ，２ｎを組込む。また、このとき選択された
計量槽は同様に零点補正がなされる。また、計量
槽２ａ，２ｎが以後選択されても起動メモリ３２
がリセツトされているので、零点補正はなされな
い。 Note that, when the discharge gate 4 is closed, the combination control unit 22 executes the combination using only the measuring tanks other than the measuring tanks 2a and 2n. After all of these combinations are executed, a control signal is supplied to the gate control unit of the measuring tank selected by the combination, and
A control signal is also supplied to the gate control units 16a, 16n, articles to be weighed are introduced, and the weighing tanks 2a, 2n are incorporated into subsequent combinations. Further, the measuring tank selected at this time is similarly subjected to zero point correction. Moreover, even if the measuring tanks 2a and 2n are selected from now on, the startup memory 32
Since has been reset, zero point correction is not performed.

第３図は第２の実施例で、否定回路３４への入
力として排出完了メモリ４８の記憶値を利用した
以外、第１の実施例と同様に構成されており、同
様に動作する。 FIG. 3 shows a second embodiment, which has the same structure and operates in the same manner as the first embodiment, except that the value stored in the discharge completion memory 48 is used as an input to the NOT circuit 34.

第４図は第３の実施例で、アンド回路３６，３
８及び否定回路３４を除去し、投入信号及び取込
み信号を零点補正完了後に発生するように組合せ
制御部２２を構成した以外、第１の実施例と同様
に構成されている。この実施例では、起動メモリ
３２に出力「１」が記憶されている状態で選択さ
れた計量槽に対応するゲート制御部の電力増幅器
４４を介して排出ゲート４に排出信号を供給する
と、排出完了メモリ４８の出力は「１」となる。
排出完了後に組合せ制御部２２がアンド回路３０
に起動パルスを供給し、アンド回路３０は出力
「１」を発生し、零点補正出力発生装置２８を作
動させ、第１の実施例と同様に加減算増幅器２６
と共に零点補正が開始され、その後組合せ制御部
２２が停止パルスを零点補正出力発生装置２８と
アンド回路５２とに供給し、零点補正が完了する
と共にアンド回路５２が出力を発生し、起動メモ
リ３２がリセツトされる。その後、組合せ制御部
２２は投入信号及び取込み信号を順に発生する。 FIG. 4 shows a third embodiment, in which AND circuits 36, 3
The configuration is the same as that of the first embodiment except that the combination control section 22 is configured to generate the input signal and the acquisition signal after the zero point correction is completed. In this embodiment, when a discharge signal is supplied to the discharge gate 4 via the power amplifier 44 of the gate control unit corresponding to the selected measuring tank with the output "1" stored in the startup memory 32, the discharge is completed. The output of the memory 48 becomes "1".
After the discharge is completed, the combination control section 22 operates the AND circuit 30.
The AND circuit 30 generates an output "1", activates the zero point correction output generator 28, and outputs the addition/subtraction amplifier 26 as in the first embodiment.
Then, the combination control section 22 supplies a stop pulse to the zero point correction output generator 28 and the AND circuit 52, and when the zero point correction is completed, the AND circuit 52 generates an output, and the starting memory 32 starts. It will be reset. Thereafter, the combination control section 22 sequentially generates an input signal and an acquisition signal.

第５図は第４の実施例で、アンド回路３６，３
８，５０，５２、否定回路３４，３６及び排出完
了メモリ４８を除去し、組合せ制御部２２に組合
された計量槽に対応する零点補正部のみに起動パ
ルス及び停止パルスを供給する機能を持たせた以
外、第１の実施例と同様に構成されている。 FIG. 5 shows a fourth embodiment, in which AND circuits 36, 3
8, 50, 52, the negative circuits 34, 36, and the discharge completion memory 48 are removed, and the combination control unit 22 has a function of supplying start pulses and stop pulses only to the zero point correction unit corresponding to the measuring tank combined. Other than that, the structure is the same as that of the first embodiment.

この実施例では、起動メモリ３２の出力が
「１」の状態で、排出信号が電力増幅器４４を介
して排出ゲート４に供給されて排出が完了する
と、組合せ制御部２２は起動パルスをアンド回路
３０に供給し、零点補正出力発生装置２８を動作
させ、加減算増幅器２６と共に第１の実施例と同
様に零点補正を開始させる。この後に組合せ制御
部２２は停止パルスを発生し、零点補正を完了す
ると共に起動メモリ３２をリセツトする。 In this embodiment, when the output of the startup memory 32 is "1" and the discharge signal is supplied to the discharge gate 4 via the power amplifier 44 to complete discharge, the combination control section 22 sends the startup pulse to the AND circuit 30. , the zero point correction output generator 28 is operated, and the zero point correction is started together with the addition/subtraction amplifier 26 in the same manner as in the first embodiment. After this, the combination control section 22 generates a stop pulse, completes the zero point correction, and resets the starting memory 32.

以上述べたように、この発明による組合せ秤で
は、零点補正指令信号を一旦供給すると、組合せ
制御部２２によつて計量槽が選択されるごとに、
その選択された計量槽の被計量物品を排出した後
に、新たな被計量物品の投入を禁止して、自動的
にその選択された計量槽の重量検出器の零点補正
がなされる。一般に組合せ秤では、複数回にわた
つて組合せ演算を行なうと、全ての計量槽が選択
される。これは、空になつた計量槽に新たに供給
される被計量物品の重量は、前に供給されていた
物品の重量と完全に一致することはなく、次の組
合せ演算で得られる各組合せの合計重量は、先の
組合せ演算で得られた各組合せの合計重量とはほ
とんど異なつているので、先に選択された複数の
計量器が再び選択される可能性は非常に少ないか
らである。してみると、上述したように選択され
た計量槽の重量検出器にのみ零点補正を行なえ
ば、複数回にわたつて組合せ演算を行なううちに
全ての重量検出器について零点補正を行える。以
上述べたように、この発明によれば、組合せ秤を
停止させて、全ての計量槽を空にする必要がない
ので、稼動率の低下は少ない。特に、上述した各
実施例のように零点補正を行なつている間に残り
の計量槽で組合せ演算を行なうと益々稼動率の低
下はない。たとえ、零点補正が終了してから、全
ての計量槽によつて組合せ演算を行なうとして
も、零点補正に要する時間は、自動的に零点補正
を行なつているので、１秒以下のごくわずかな時
間だけであり、稼動率が低下するとしてもごくわ
ずかであり、従来のもののように全ての計量槽を
空にするものと比べると、稼動率が低下していな
いのに等しい。 As described above, in the combination balance according to the present invention, once the zero point correction command signal is supplied, each time a weighing tank is selected by the combination control section 22,
After the articles to be weighed from the selected weighing tank are discharged, the introduction of new articles to be weighed is prohibited, and the zero point correction of the weight detector of the selected weighing tank is automatically performed. Generally, in a combination weigher, all weighing vessels are selected when combination calculations are performed multiple times. This means that the weight of the article to be weighed newly supplied to the empty weighing tank will not completely match the weight of the article that was previously supplied, and that each combination obtained by the next combination calculation will This is because the total weight is almost different from the total weight of each combination obtained in the previous combination calculation, so there is a very small possibility that the plurality of previously selected scales will be selected again. As a result, if the zero point correction is performed only on the weight detectors of the selected weighing tank as described above, the zero point correction can be performed on all the weight detectors while performing the combination calculation a plurality of times. As described above, according to the present invention, there is no need to stop the combination scale and empty all the weighing tanks, so there is little reduction in the operating rate. Particularly, if the combination calculation is performed on the remaining measuring tanks while the zero point correction is being performed as in each of the embodiments described above, the operating rate will not be lowered. Even if a combination calculation is performed using all measuring tanks after zero point correction is completed, the time required for zero point correction is very short, less than one second, because zero point correction is performed automatically. It only takes time, and the operating rate is only slightly reduced, if at all.Compared to the conventional method in which all measuring tanks are emptied, it is as if the operating rate has not decreased.

上記第１の実施例では、計量槽２ａ，２ｎが零
点補正している間、他の計量槽で組合せを実行す
る構成としたが、計量槽２ａ，２ｎの零点補正が
終了した後、全計量槽２ａ乃至２ｎによつて組合
せを実行する構成としてもよい。また投入装置８
ａ乃至８ｎを設けたが、場合によつては不要であ
る。零点補正される計量槽の台数が多く、残りの
計量槽によつて適正な組合せが得られる可能性が
少ないときは、補正を行う計量槽の台数または補
正される計量槽の台数を減少させる構成にしても
よい。組合せ制御部２２は予め定めた組合せを実
行した後、計量槽を選択する構成としたが、設定
重量の許容範囲内の組合せが得られると、ただち
に選択する構成としてもよい。さらに零点補正指
令信号はスイツチ２４を閉成することによつて発
生させたが、タイマー等を使用して所定時間ごと
に発生する構成としてもよい。またスイツチ２４
は１個で各零点補正部２０ａ乃至２０ｎの起動メ
モリ３２を起動したが、各起動メモリごとに設け
てもよい。なお、上記各実施例において符号の後
尾に付したアルフアベツトは各構成要素の個数を
示すもので、ｎは適当な正の整数であればよい。 In the first embodiment described above, while the measuring tanks 2a and 2n are performing zero point correction, the combination is executed in the other measuring tanks, but after the zero point correction of the measuring tanks 2a and 2n is completed, all the The combination may be performed using the tanks 2a to 2n. In addition, the feeding device 8
Although a to 8n are provided, they may be unnecessary in some cases. A configuration that reduces the number of measuring tanks to be corrected or the number of measuring tanks to be corrected when the number of measuring tanks to be zero-point corrected is large and there is little possibility of obtaining a proper combination with the remaining measuring tanks. You can also do this. Although the combination control unit 22 is configured to select a weighing tank after executing a predetermined combination, it may be configured to select a weighing tank immediately after a combination within the allowable range of the set weight is obtained. Further, although the zero point correction command signal is generated by closing the switch 24, it may be generated at predetermined time intervals using a timer or the like. Also switch 24
Although one activation memory 32 of each zero point correction unit 20a to 20n is activated, it may be provided for each activation memory. In each of the above embodiments, the alphanumeric characters appended to the suffixes of the symbols indicate the number of each component, and n may be any appropriate positive integer.

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

第１図はこの発明による組合せ秤の第１の実施
例の概略図、第２図は同秤に使用するゲート制御
部及び零点補正部のブロツク図、第３図は第２の
実施例のブロツク図、第４図は第３の実施例のブ
ロツク図、第５図は第４の実施例のブロツク図で
ある。 ２ａ乃至２ｎ……計量槽、４……排出ゲート、
１２……取込み装置（供給装置）、１４ａ乃至１
４ｎ……取込みゲート（供給ゲート）、１６ａ乃
至１６ｎ……ゲート制御部、１８ａ乃至１８ｎ…
…重量検出器、２０ａ乃至２０ｎ……零点補正
部、２２……組合せ制御部、３２……起動メモ
リ、｛２６……加減算増幅器、２８……零点補正
出力発生装置｝零点補正装置、３４……否定回路
（阻止回路）、４８……排出完了メモリ。 FIG. 1 is a schematic diagram of a first embodiment of a combination balance according to the present invention, FIG. 2 is a block diagram of a gate control section and zero point correction section used in the same balance, and FIG. 3 is a block diagram of a second embodiment of the combination balance. 4 are block diagrams of the third embodiment, and FIG. 5 is a block diagram of the fourth embodiment. 2a to 2n...Measuring tank, 4...Discharge gate,
12...Intake device (supply device), 14a to 1
4n...Intake gate (supply gate), 16a to 16n...Gate control section, 18a to 18n...
...Weight detector, 20a to 20n... Zero point correction unit, 22... Combination control unit, 32... Starting memory, {26... Addition/subtraction amplifier, 28... Zero point correction output generator} Zero point correction device, 34... Negation circuit (blocking circuit), 48... Ejection completion memory.

Claims (1)

【特許請求の範囲】[Claims] １ 被計量物品を各々収容しており排出信号が供
給されたとき開かれその後閉じられる排出ゲート
を各々有する複数の計量槽と、これら各計量槽に
対応するように設けられ供給信号が供給されたと
き上記対応する計量槽に被計量物品を供給する供
給装置と、上記各計量槽ごとに設けられその計量
槽に収容されている被計量物品の重量に対応する
出力を生成する複数の重量検出器と、各々収容し
ている上記被計量物品の重量の和が予め定めた重
量に等しいかこれに近い上記計量槽の組合せを各
零点補正部を介して供給された上記各重量検出器
の出力に基づいて選択する組合せ制御部と、この
組合せ制御部の出力に基づいて上記選択された計
量槽の排出ゲートに上記排出信号を供給しその後
その計量槽に対応する供給装置に供給信号を供給
するゲート制御部と、上記各重量検出器と上記組
合せ制御部との間にそれぞれ介在させた複数の零
点補正部とを含み、これら零点補正部は、零点補
正指令信号が供給されたときこれを記憶する起動
メモリと、上記零点補正指令信号が上記起動メモ
リに記憶されている状態において自己が属する零
点補正部に対応する計量槽に上記排出信号が供給
されるとその計量槽に対応する供給装置への上記
供給信号の供給を阻止する手段と、上記記憶状態
において上記排出信号が供給された自己が属する
零点補正部に対応する計量槽から被計量物品が排
出された状態でその計量槽の上記重量検出部の出
力を零点補正する零点補正手段とを含むことを特
徴とする組合せ秤。1. A plurality of weighing tanks each containing an article to be weighed and each having a discharge gate that is opened when a discharge signal is supplied and then closed, and a supply signal is supplied to a plurality of weighing tanks corresponding to each of the weighing tanks. a supply device that supplies the article to be weighed to the corresponding weighing tank, and a plurality of weight detectors that are provided for each of the weighing tanks and generate an output corresponding to the weight of the article to be weighed contained in the weighing tank. and a combination of the weighing tanks in which the sum of the weights of the objects to be weighed that are accommodated in each tank is equal to or close to a predetermined weight, to the output of each of the weight detectors supplied via each zero point correction section. and a gate that supplies the discharge signal to the discharge gate of the selected metering tank based on the output of the combination control section and thereafter supplies the supply signal to the supply device corresponding to the metering tank. and a plurality of zero point correction sections interposed between each of the weight detectors and the combination control section, and these zero point correction sections memorize the zero point correction command signal when it is supplied. When the discharge signal is supplied to the measuring tank corresponding to the zero point correction section to which it belongs in a state where the starting memory and the zero point correction command signal are stored in the starting memory, the discharge signal is sent to the supply device corresponding to the measuring tank. means for blocking the supply of the supply signal, and detecting the weight of the weighing tank when the article to be weighed is discharged from the weighing tank corresponding to the zero point correction section to which the discharge signal belongs in the storage state; and a zero point correction means for zero point correction of the output of the combination weigher.
JP289580A 1980-01-14 1980-01-14 Combined scale Granted JPS56100318A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP289580A JPS56100318A (en) 1980-01-14 1980-01-14 Combined scale
AU65924/80A AU520013B2 (en) 1980-01-14 1980-12-31 Zero point correction in combination weigher
GB8100808A GB2070362B (en) 1980-01-14 1981-01-12 Weighing device
FR8100439A FR2473705A1 (en) 1980-01-14 1981-01-13 AUTOMATIC COMBINED SCALE WITH PERFECT ZERO POINT CORRECTION SYSTEM
IT67032/81A IT1172219B (en) 1980-01-14 1981-01-14 AUTOMATIC WEIGHING MACHINE PERSUDDUID LOOSE ITEMS IN GROUPS OF ITEMS OF NUMBER AND TOTAL WEIGHT EQUAL
DE3100917A DE3100917C2 (en) 1980-01-14 1981-01-14 Combination weighing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP289580A JPS56100318A (en) 1980-01-14 1980-01-14 Combined scale

Publications (2)

Publication Number Publication Date
JPS56100318A JPS56100318A (en) 1981-08-12
JPS6112523B2 true JPS6112523B2 (en) 1986-04-09

Family

ID=11542084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP289580A Granted JPS56100318A (en) 1980-01-14 1980-01-14 Combined scale

Country Status (6)

Country Link
JP (1) JPS56100318A (en)
AU (1) AU520013B2 (en)
DE (1) DE3100917C2 (en)
FR (1) FR2473705A1 (en)
GB (1) GB2070362B (en)
IT (1) IT1172219B (en)

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JPS4973165A (en) * 1972-11-13 1974-07-15
JPS50104670A (en) * 1974-01-22 1975-08-18

Also Published As

Publication number Publication date
IT8167032A0 (en) 1981-01-14
GB2070362B (en) 1984-02-22
FR2473705B1 (en) 1984-12-28
DE3100917C2 (en) 1985-12-19
IT1172219B (en) 1987-06-18
DE3100917A1 (en) 1981-12-17
AU6592480A (en) 1981-07-23
FR2473705A1 (en) 1981-07-17
JPS56100318A (en) 1981-08-12
AU520013B2 (en) 1982-01-07
GB2070362A (en) 1981-09-03

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