JPS5772014A - Flow rate control method for constant feed wares - Google Patents

Flow rate control method for constant feed wares

Info

Publication number
JPS5772014A
JPS5772014A JP14914580A JP14914580A JPS5772014A JP S5772014 A JPS5772014 A JP S5772014A JP 14914580 A JP14914580 A JP 14914580A JP 14914580 A JP14914580 A JP 14914580A JP S5772014 A JPS5772014 A JP S5772014A
Authority
JP
Japan
Prior art keywords
flow rate
value
average
difference
rate control
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.)
Pending
Application number
JP14914580A
Other languages
Japanese (ja)
Inventor
Akira Nakamoto
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP14914580A priority Critical patent/JPS5772014A/en
Publication of JPS5772014A publication Critical patent/JPS5772014A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

PURPOSE:To effect smooth flow rate control with high reliability by a method wherein a discharge flow rate is controlled on the basis of a difference between the most recent average flow rate and the preset goal flow rate and, when an anomalous sampling value is detected, the average flow rate over a time period not including such value is employed. CONSTITUTION:Materials are supplied from a belt conveyor 5a into a hopper 1 and then, a motor 4 driving a screw feeder 5 is controlled in its rotational speed based on an output signal from a weighing device 2 and a preset goal flow rate Qr. The average flow rate Qs is calculated by a processing unit 9 on the basis of the most recent N sampling values from the weighing device 2. When the sampling value which is judged as anomalous is detected, the average value over a time period not including such value is calculated. Thus obtained average flow rate Qs is input to a subtractor 6 and a difference (e) between the average flow rate and the preset goal flow rate Qr is fed to an adjuster, so that a rotational speed of the motor 4 is controlled to make the difference (e) zero. Thus, smooth flow rate control can be performed with high reliability.
JP14914580A 1980-10-23 1980-10-23 Flow rate control method for constant feed wares Pending JPS5772014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14914580A JPS5772014A (en) 1980-10-23 1980-10-23 Flow rate control method for constant feed wares

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14914580A JPS5772014A (en) 1980-10-23 1980-10-23 Flow rate control method for constant feed wares

Publications (1)

Publication Number Publication Date
JPS5772014A true JPS5772014A (en) 1982-05-06

Family

ID=15468746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14914580A Pending JPS5772014A (en) 1980-10-23 1980-10-23 Flow rate control method for constant feed wares

Country Status (1)

Country Link
JP (1) JPS5772014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587482A1 (en) * 1985-09-13 1987-03-20 Auxiliaire Entreprises Soc Metering/weighing screw for pulverulent and granular products
JP2020016451A (en) * 2018-07-23 2020-01-30 Ｎｅｃソリューションイノベータ株式会社 Count device, count method, program, and recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587482A1 (en) * 1985-09-13 1987-03-20 Auxiliaire Entreprises Soc Metering/weighing screw for pulverulent and granular products
JP2020016451A (en) * 2018-07-23 2020-01-30 Ｎｅｃソリューションイノベータ株式会社 Count device, count method, program, and recording medium

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