JP2015118063A5

JP2015118063A5 -

Info

Publication number: JP2015118063A5
Application number: JP2013263311A
Authority: JP
Filing date: 2013-12-20
Publication date: 2016-12-22
Anticipated expiration: 2033-12-20

Description

（２）本発明の組合せ秤は、物品をそれぞれ供給する複数のフィーダと、前記複数の各フィーダを介して前記物品がそれぞれ供給されると共に、供給された前記物品の重量をそれぞれ計量する複数の計量ホッパとを備え、
複数の計量ホッパでそれぞれ計量される前記物品の重量及び目標組合せ重量に基づいて、組合せ演算を行う組合せ秤において、
前記複数の計量ホッパへ供給される前記物品の供給重量の少なくとも３回以上の所定回数の供給重量に基づいて、前記所定回数における回数当たりの供給重量の変化量を、傾向変動量として計量ホッパ毎に推定算出する傾向変動量算出手段と、前記所定回数における回数当りの供給重量の変化量である傾向変動量を反映した供給重量に関する予測値を、計量ホッパ毎にそれぞれ推定算出する予測値算出手段と、前記予測値算出手段によってそれぞれ推定算出される前記計量ホッパ毎の前記予測値に基づいて、前記各計量ホッパへ供給される前記物品の供給重量が、前記目標組合せ重量に基づいて規定される目標供給重量になるように、前記各フィーダによる供給量をそれぞれ制御する制御手段とを備える。
(2) The combination weigher of the present invention includes a plurality of feeders that respectively supply articles, and a plurality of feeders that respectively supply the articles via the plurality of feeders and that measure the weight of the supplied articles. With a weighing hopper,
In a combination weigher that performs a combination calculation based on the weight of the article and a target combination weight that are respectively weighed by a plurality of weighing hoppers,
Wherein the plurality of on the basis of the supplied weight of a given number of three or more even without less of the supply weight of the articles supplied to the weighing hopper weighing, the amount of change in the supply weight per number of the predetermined number of times, the trend variation Trend fluctuation amount calculating means for estimating and calculating for each hopper, and a predicted value for estimating and calculating a predicted value related to the supply weight reflecting the trend variation amount that is a change amount of the supplied weight per number of times in the predetermined number of times. Based on the predicted value for each weighing hopper estimated and calculated by the calculating means and the predicted value calculating means, the supply weight of the article to be supplied to each weighing hopper is defined based on the target combination weight And a control means for controlling the supply amount by each feeder so as to achieve the target supply weight.

Claims

A plurality of feeders each supplying articles, and a plurality of weighing hoppers each weighing the weight of the supplied articles while the articles are respectively supplied via the plurality of feeders,
In a combination weigher that performs a combination calculation based on the weight of the article and a target combination weight that are respectively weighed by a plurality of weighing hoppers,
Wherein the plurality of on the basis of the supplied weight of a given number of three or more even without less of the supply weight of the articles supplied to the weighing hopper weighing, the amount of change in the supply weight per number of the predetermined number of times, the trend variation A trend variation calculating means for estimating and calculating for each hopper;
Display means for displaying a change in supply weight per number of times in the predetermined number of times for each weighing hopper estimated and calculated by the trend fluctuation amount calculation means;
A combination weigher.

A plurality of feeders each supplying articles, and a plurality of weighing hoppers each weighing the weight of the supplied articles while the articles are respectively supplied via the plurality of feeders,
In a combination weigher that performs a combination calculation based on the weight of the article and a target combination weight that are respectively weighed by a plurality of weighing hoppers,
Wherein the plurality of on the basis of the supplied weight of a given number of three or more even without less of the supply weight of the articles supplied to the weighing hopper weighing, the amount of change in the supply weight per number of the predetermined number of times, the trend variation A trend variation calculating means for estimating and calculating for each hopper;
A predicted value calculation means for estimating and calculating a predicted value related to a supplied weight reflecting a trend variation amount that is a change amount of the supplied weight per number of times in the predetermined number of times, for each weighing hopper;
Based on the predicted value for each weighing hopper estimated and calculated by the predicted value calculating means, the supply weight of the article supplied to each weighing hopper is defined based on the target combination weight. Control means for controlling the supply amount by each feeder so as to be weight,
A combination weigher.

The predicted value calculation means calculates an error of the supply weight of the article supplied to each weighing hopper from the target supply weight as the predicted value related to the supply weight based on the latest predetermined number of supply weights. Estimate the predicted value,
The combination weigher according to claim 2.

The predicted value calculation means estimates and calculates the predicted value based on an approximate function reflecting the predetermined fluctuation of the supplied weight of the predetermined number of times.
The combination weigher according to claim 2 or 3.

In the adjustment operation that does not control each feeder by the control means,
When the predetermined number of times is set as the number of samples and the number of samples is varied, the tendency fluctuation amount calculating means is configured to determine the difference in the number of samples supplied to the weighing hopper based on the supply weight of the article. The amount of change in the supplied weight per number of samples with different numbers of samples is estimated and calculated for each weighing hopper as a trend fluctuation amount.
Display means for displaying a list of the trend fluctuation amounts estimated and calculated by the trend fluctuation amount calculation means together with the number of samples different from each other;
The combination weigher according to any one of claims 2 to 4.

In the adjustment operation, a standard deviation calculating unit that calculates a standard deviation of the supply weight of the different number of samples based on the supply weight of the different number of samples supplied to the weighing hopper,
The display means displays a list of the standard deviations calculated by the standard deviation calculation means together with the different number of samples.
The combination weigher according to claim 5.

An allowable value setting means for setting an allowable value that is an upper limit value of a normal magnitude for the tendency variation amount in advance;
Control followability alarm means for outputting an alarm signal when the tendency variation amount in any weighing hopper exceeds the allowable value during operation operation,
Comprising
The combination weigher according to any one of claims 1 to 6.