JPH0342618B2 - - Google Patents
Info
- Publication number
- JPH0342618B2 JPH0342618B2 JP58140099A JP14009983A JPH0342618B2 JP H0342618 B2 JPH0342618 B2 JP H0342618B2 JP 58140099 A JP58140099 A JP 58140099A JP 14009983 A JP14009983 A JP 14009983A JP H0342618 B2 JPH0342618 B2 JP H0342618B2
- Authority
- JP
- Japan
- Prior art keywords
- combination
- weighed
- objects
- weighing
- weight value
- 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
Links
- 238000005303 weighing Methods 0.000 claims description 51
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/387—Weighing 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
- G01G19/393—Weighing 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)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Description
【発明の詳細な説明】
本発明は組合せ秤詳しくは、複数の計量ホツパ
ーに供給された被計量物を夫々計量し、設定重量
の許容差内に達する複数の計量ホツパーの組合せ
を選択する組合せ秤の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combination weigher, specifically, a combination weigher which weighs objects to be weighed supplied to a plurality of weighing hoppers and selects a combination of a plurality of weighing hoppers that achieves a set weight within a tolerance. Regarding improvements.
上記組合せ秤における各計量ホツパーへの被計
量物の基準搬入量Ｗは、
Wt：設定重量
Ｋ：基準とする組合せ計量ホツパー数とすれ
ば、
Ｗ＝Wt÷Ｋ
となり、各計量ホツパーへの被計量物の搬送条件
が適正であれば、各計量ホツパーへの被計量物の
搬入量は基準搬入量Ｗを中心とする正規分布とな
る。 The standard amount W of objects to be weighed to each weighing hopper in the above combination scale is W = W t ÷ K, where W t is the set weight and K is the standard number of combined weighing hoppers. If the conveyance conditions for the objects to be weighed are appropriate, the amount of objects to be weighed carried into each weighing hopper will be normally distributed around the reference amount W of carried-in.
組合せとして選択される計量ホツパー内の被計
量物の多くは、基準搬入量Ｗに近い計量値のもの
で、大きく違う計量値例えば最大計量値又は最小
計量値等は組合せとして選択される率が著しく低
い。 Most of the objects to be weighed in the weighing hopper that are selected as a combination have weight values close to the standard input amount W, and weight values that are significantly different, such as the maximum weight value or the minimum weight value, have a significantly higher rate of being selected as a combination. low.
即ち、計量ホツパー内に被計量が長時間貯溜さ
れるようになり、次のような問題点を引き起こ
す。 That is, the object to be weighed is stored in the weighing hopper for a long time, causing the following problems.
Γ 長時間負荷がかかることによる零点の移動。Γ Zero point movement due to long-term load.
Γ 被計量物の計量ホツパーへの付着
Γ 実質的には組合せに参加していないので組合
せ精度の低下。Γ Adhesion of the object to be weighed to the weighing hopper Γ Since it does not actually participate in the combination, the accuracy of the combination decreases.
又、故意に最大計量値又は最小計量値を含む組
合せの中で最も設定重量に近い組合せを選択して
も、組合せ精度が悪いものになつてしまう。 Furthermore, even if a combination that is closest to the set weight is intentionally selected among combinations that include the maximum weight value or the minimum weight value, the accuracy of the combination will be poor.
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、最大計量値又は最小計量
値等のように組合せに選択されにくい計量ホツパ
ー内の被計量物を強制的に排出するようにして、
組合せ秤の組合せ精度をより高めることにある。 The present invention has been made in view of the above-mentioned conventional circumstances, and its purpose is to forcibly discharge objects to be weighed in a weighing hopper that are difficult to select for combinations such as maximum weighing value or minimum weighing value. In this way,
The objective is to further improve the combination accuracy of combination scales.
斯る本発明の被計量物排出方法は、前記組合せ
秤において、各計量ホツパーに夫々組合せ選択さ
れない連続回数を計数するカウンターを設けると
共に、毎回の組合せ又は所定回数毎の組合せの度
に、下記(a)〜(c)の排出条件に従つて計量ホツパー
内の被計量物を前記選択された計量ホツパー分と
は別の排出経路へ強制的に排出することを特徴と
する。；
(a) 最大計量値と最小計量値との被計量物が何れ
も組合せとして選択されない場合、最大計量値
及び／又は最小計量値の被計量物
(b) 最大計量値と最小計量値との何れも一方が組
合せとして選択された場合の他方の被計量物
(c) 最大計量値と最小計量値との両方が組合せと
して選択された場合、組合せとして選択されな
い連続回数が多い被計量物から順に１つ又は複
数。 Such a method for discharging objects to be weighed of the present invention is such that, in the combination scale, each weighing hopper is provided with a counter for counting the number of consecutive times that a combination is not selected, and the following ( The object to be weighed in the weighing hopper is forcibly discharged to a discharge route different from the selected weighing hopper in accordance with the discharge conditions a) to (c). (a) If neither the maximum weight value nor the minimum weight value is selected as a combination, the maximum weight value and/or the minimum weight value; (b) the maximum weight value and the minimum weight value; (c) When both the maximum weighing value and the minimum weighing value are selected as a combination, the objects to be weighed that have the highest consecutive number of not being selected as a combination (c) One or more.
本発明実施の一例を第１図の組合せ秤により説
明すれば、図中１，１…は計量ホツパーであり、
供給された被計量物を夫々計量すると共に、組合
せとして選択された計量ホツパー１内の被計量物
を排出して組合せを得るものである。 An example of carrying out the present invention will be explained using the combination scale shown in FIG. 1. In the figure, 1, 1... are weighing hoppers;
The supplied objects to be weighed are each weighed, and the objects to be weighed in the weighing hopper 1 selected as a combination are discharged to obtain a combination.
上記各計量ホツパー１の上部にはプールホツパ
ー４を夫々設ける。プールホツパー４は分散板
（図示せず）上の被計量物を供給トラフ（図示せ
ず）を介して受け取り、一時貯溜して計量ホツパ
ー１が空になつた時に被計量物を供給するもので
ある。 A pool hopper 4 is provided above each weighing hopper 1, respectively. The pool hopper 4 receives the object to be weighed on the distribution plate (not shown) via a supply trough (not shown), temporarily stores it, and supplies the object to be weighed when the weighing hopper 1 is empty. .
前記計量ホツパー１の下方には集合ホツパー５
を配設して被計量物を集合させると共に、集合ホ
ツパー５の排出口を２股に分岐して分岐部分に弁
６を配設する。 Below the weighing hopper 1 is a collection hopper 5.
is arranged to collect the objects to be weighed, and the discharge port of the collecting hopper 5 is branched into two, and a valve 6 is arranged at the branched part.
集合ホツパー５の排出口の一方には組合せた被
計量物を搬入する包装機等の搬入口８を、他方に
は組合せに用いない被計量物を回収する回収口９
を配設する。 One of the discharge ports of the collecting hopper 5 has a loading port 8 for a packaging machine or the like to carry in the combined objects to be weighed, and the other side has a collection port 9 for collecting the objects to be weighed that are not used in the combination.
to be placed.
弁６は一方の排出口を閉じて他方の排出口を開
放するようにして、集合ホツパー５内へ落下した
被計量物を搬入口８又は回収口９の何れか一方に
案内するものである。 The valve 6 closes one outlet and opens the other outlet to guide objects to be weighed that have fallen into the collection hopper 5 to either the carry-in port 8 or the collection port 9.
次に上記組合せ秤の制御装置７について第２図
により説明すれば、制御装置７は、前記プールホ
ツパー４、計量ホツパー１、弁６、分散板のフイ
ーダ２及び供給トラフのフイーダ３をも制御する
もので、判定部７ａ、記憶部７ｂを内設してな
る。 Next, the control device 7 of the above combination weigher will be explained with reference to FIG. 2. The control device 7 also controls the pool hopper 4, the weighing hopper 1, the valve 6, the feeder 2 of the distribution plate, and the feeder 3 of the supply trough. A determination section 7a and a storage section 7b are provided internally.
分散フイーダ２は被計量物を分散する分散板を
駆動するものであり、フイーダ３は分散板上の被
計量物をプールホツパー４に搬送するものであ
り、プールホツパー４内が空の時駆動される。 The dispersion feeder 2 drives a dispersion plate that disperses objects to be weighed, and the feeder 3 conveys the objects to be weighed on the dispersion plate to the pool hopper 4, and is driven when the inside of the pool hopper 4 is empty.
プールホツパー４は計量ホツパー１が空の時開
動して被計量物を計量ホツパー１に供給するもの
であり、又計量ホツパー１は夫々ホツパー開閉部
１′を備えてなる。 The pool hopper 4 is opened and operated when the weighing hopper 1 is empty to supply the object to be weighed to the weighing hopper 1, and each weighing hopper 1 is provided with a hopper opening/closing portion 1'.
記憶部７ｂは上記(a)〜(e)を排出条件として記憶
するものである。 The storage unit 7b stores the above (a) to (e) as discharge conditions.
(a) 最大計量値と最小計量値との被計量物が何れ
も組合せとして選択されない場合、最大計量値
及び／又は最小計量値の被計量物。(a) If neither the maximum weight nor the minimum weight is selected as a combination, the maximum weight and/or the minimum weight.
(b) 最大計量値と最小計量値との何れか一方が組
合せとして選択された場合の他方の被計量物。(b) The other object to be weighed when either the maximum weighing value or the minimum weighing value is selected as a combination.
(c) 最大計量値と最小計量値との両方が組合せと
して選択された場合、組合せとして選択されな
い連続回数が多い被計量物から順に１つ又は複
数。(c) If both the maximum weight value and the minimum weight value are selected as a combination, one or more objects to be weighed in descending order of the number of consecutive times that they are not selected as a combination.
(d) 組合せが選択されなかつた場合、組合せとし
て選択されない連続回数が多い被計量物から順
に１つ又は複数。(d) If no combination is selected, one or more objects to be weighed in descending order of the number of consecutive times that they are not selected as a combination.
(e) 組合せが選択されなかつた場合で、組合せと
して選択されない連続回数が最も多い被計量物
が複数あつた場合、最大計量値又は最小計量
値、もしくは最も最大、最小計量値に近い被計
量物。(e) If no combination is selected, and there are multiple objects to be weighed that have the highest number of consecutive times of not being selected as a combination, the object to be weighed that has the maximum or minimum weight value, or the object that is closest to the maximum or minimum weight value. .
判定部７ａは各計量ホツパー１内の被計量物の
何れかが、記憶部７ｂに記憶された排出条件に該
当したかを判定し、該当する計量ホツパー１の開
閉部１′を開放すると共に、弁６を回収口９側に
開口されるものである。 The determination section 7a determines whether any of the objects to be weighed in each weighing hopper 1 corresponds to the discharge conditions stored in the storage section 7b, and opens the opening/closing section 1' of the corresponding weighing hopper 1, The valve 6 is opened to the recovery port 9 side.
制御装置７は各計量ホツパー内の被計量物を組
合せて設定重量の許容差の組合せを選択し、選択
された計量ホツパー１の開閉部１′を開放すると
共に、弁６を搬入口８側に開放されるものであ
る。 The control device 7 selects a combination of set weight tolerances by combining the objects to be weighed in each weighing hopper, opens the opening/closing portion 1' of the selected weighing hopper 1, and moves the valve 6 to the loading port 8 side. It is something that is liberated.
前記各計量ホツパー１に夫々カウンター１０を
設ける。 Each weighing hopper 1 is provided with a counter 10, respectively.
カウンター１０は計量ホツパー１が組合せに参
加しなかつた回数を計数するカウンターであり、
計量ホツパー１が組合せに参加した時点でクリア
されるものであり、該計数値は常時判定部７ａに
入力される。 The counter 10 is a counter that counts the number of times the weighing hopper 1 did not participate in the combination,
It is cleared when the weighing hopper 1 participates in the combination, and the counted value is constantly input to the determination section 7a.
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を夫々計量し、設定重量の許
容差内に達する複数の計量ホツパーの組合せを選
択する組合せ秤において、各計量ホツパーに夫々
組合せ選択されない連続回数を計数するカウンタ
ーを設けると共に、毎回の組合せ又は所定回数毎
の組合せの度に、下記(a)〜(c)の排出条件
(a) 最大計量値と最小計量値との被計量物が何れ
も組合せとして選択されない場合、最大計量値
及び／又は最小計量値の被計量物。 As described above, the present invention provides a combination weigher that weighs objects to be weighed supplied to a plurality of weighing hoppers and selects a combination of the plurality of weighing hoppers that achieves a set weight within a tolerance. A counter is provided to count the number of consecutive times that a combination is not selected, and each time a combination or a predetermined number of combinations is made, the emission conditions (a) of (a) below (a) to (c) between the maximum measured value and the minimum measured value are If none of the objects to be weighed are selected as a combination, the object to be weighed with the maximum weight value and/or the minimum weight value.
(b) 最大計量値と最小計量値との何れか一方が組
合せとして選択された場合の他方の被計量物。(b) The other object to be weighed when either the maximum weighing value or the minimum weighing value is selected as a combination.
(c) 最大計量値と最小計量値との両方が組合せと
して選択された場合、組合せとして選択されな
い連続回数が多い被計量物から順に１つ又は複
数。(c) If both the maximum weight value and the minimum weight value are selected as a combination, one or more objects to be weighed in descending order of the number of consecutive times that they are not selected as a combination.
に従つて計量ホツパー内の被計量物を強制的に排
出する被計量物排出方法に構成したので、組合せ
として選択されにくい最大計量値や最小計量値の
被計量物を強制排出し、計量ホツパー内に被計量
物が長時間貯溜されずにすむとともに、選択され
た計量ホツパーの重量値は常に設定重量の許容差
内にあるので、正確な計量を行なうことができ
る。Accordingly, the object to be weighed is forcibly discharged from the weighing hopper.The object to be weighed is forcibly ejected from the weighing hopper. Since the object to be weighed does not have to be stored for a long time, and the weight value of the selected weighing hopper is always within the set weight tolerance, accurate weighing can be performed.
従つて、計量ホツパーの零点移動が殆ど無いと
共に、被計量物の付着も最小ですむ。 Therefore, there is almost no movement of the zero point of the weighing hopper, and the amount of adhesion of objects to be weighed is minimized.
更に、殆どの計量ホツパー内の被計量物が組合
せとして選択されるように率が高くなるので、組
合せ精度良好である。 Furthermore, since most of the objects to be weighed in the weighing hoppers are selected as a combination, the combination accuracy is high.
依つて所期の目的を達する。 By doing so, we will reach our intended purpose.
第１図は本発明実施例の組合せ秤を示す構成
図、第２図は同制御構成を示すブロツク図であ
る。
図中、１…計量ホツパー、１′…開閉部、７…
制御装置、７ａ…判定部、７ｂ…記憶部、１０…
カウンターである。
FIG. 1 is a block diagram showing a combination weigher according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the control structure thereof. In the figure, 1...Measuring hopper, 1'...Opening/closing part, 7...
Control device, 7a...determination section, 7b...storage section, 10...
It is a counter.
Claims (1)
夫々計量し、設定重量の許容差内に達する複数の
計量ホツパーの組合せを選択し、それら計量ホツ
パー内の被計量物を排出する組合せ秤において、
各計量ホツパーに夫々組合せ選択されない連続回
数を計数するカウンターを設けると共に、毎回の
組合せ又は所定回数毎の組合せの度に、下記(a)〜
(c)の排出条件に従つて計量ホツパー内の被計量物
を前記選択された計量ホツパー分とは別の排出経
路へ強制的に排出する被計量物排出方法； (a) 最大計量値と最小計量値との被計量物が何れ
も組合せとして選択されない場合、最大計量値
及び／又は最小計量値の被計量物 (b) 最大計量値と最小計量値との何れか一方が組
合せとして選択された場合の他方の被計量物 (c) 最大計量値と最小計量値との両方が組合せと
して選択された場合、組合せとして選択されな
い連続回数が多い被計量物から順に１つ又は複
数。[Claims] 1. Weigh the objects to be weighed supplied to a plurality of weighing hoppers, select a combination of the plurality of weighing hoppers that achieves a set weight within the tolerance, and weigh the objects in the weighing hoppers. In the combination scale that discharges,
Each weighing hopper is provided with a counter that counts the number of consecutive times that a combination is not selected, and the following (a) to
(c) A method for discharging objects to be weighed in which the objects to be weighed in the weighing hopper are forcibly discharged to a different discharge route than the selected weighing hopper according to the discharge conditions; (a) Maximum and minimum weighing values; If neither of the objects to be measured with the measured value is selected as a combination, the object to be measured with the maximum weight value and/or the minimum weight value (b) Either the maximum weight value or the minimum weight value is selected as a combination. (c) When both the maximum weight value and the minimum weight value are selected as a combination, one or more objects to be weighed in descending order of the number of consecutive times that they are not selected as a combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14009983A JPS6031022A (en) | 1983-07-30 | 1983-07-30 | Method of discharging material to be measured in combination scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14009983A JPS6031022A (en) | 1983-07-30 | 1983-07-30 | Method of discharging material to be measured in combination scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031022A JPS6031022A (en) | 1985-02-16 |
| JPH0342618B2 true JPH0342618B2 (en) | 1991-06-27 |
Family
ID=15260916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14009983A Granted JPS6031022A (en) | 1983-07-30 | 1983-07-30 | Method of discharging material to be measured in combination scale |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031022A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910000381B1 (en) * | 1985-12-29 | 1991-01-24 | 안리쯔 가부시기가이샤 | Combination weighting apparatus |
| JPS62175624A (en) * | 1986-01-29 | 1987-08-01 | Nanbu Denki Seisakusho:Kk | Combination weighing method and packing apparatus for hen eggs |
| JP2595279B2 (en) * | 1988-01-21 | 1997-04-02 | 株式会社 イシダ | Product mixing and weighing equipment |
| JP5060706B2 (en) * | 2004-08-06 | 2012-10-31 | 大和製衡株式会社 | Combination scale |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855820A (en) * | 1981-09-30 | 1983-04-02 | Ishida Scales Mfg Co Ltd | Device for inhibitting selection stop for long time in combined scale |
-
1983
- 1983-07-30 JP JP14009983A patent/JPS6031022A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855820A (en) * | 1981-09-30 | 1983-04-02 | Ishida Scales Mfg Co Ltd | Device for inhibitting selection stop for long time in combined scale |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6031022A (en) | 1985-02-16 |
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