JPS649320A - Weighing of powder - Google Patents
Weighing of powderInfo
- Publication number
- JPS649320A JPS649320A JP62164632A JP16463287A JPS649320A JP S649320 A JPS649320 A JP S649320A JP 62164632 A JP62164632 A JP 62164632A JP 16463287 A JP16463287 A JP 16463287A JP S649320 A JPS649320 A JP S649320A
- Authority
- JP
- Japan
- Prior art keywords
- weighing
- powder
- value
- feed quantity
- valve
- 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
Links
- 238000005303 weighing Methods 0.000 title abstract 7
- 239000000843 powder Substances 0.000 title abstract 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
PURPOSE:To enable a powder to be accurately weighed in a short time by increasing the feed quantity of the powder by the high speed rotation of a rotary valve when a weighing is started, decreasing the feed quantity of the powder by a low speed rotation near a set weighed value and performing a fine weighing. CONSTITUTION:When a controller 23 is instructed for the start of a weighing, a butterfly valve 19 is opened by a fluid cylinder 18. At the same time, an inverter 16 applies a high frequency power supply to a driving motor 15 by the command signal of a flow velocity setting unit 26 and a rotary valve 14 is rotated at a high speed to increase the feed quantity of a powder at the early stage of the weighing. When a weighed value in a weight detector 21 reaches a value set in advance to a fine weighing setting unit 25, the inverter 6 applies a reduced power supply frequency to the motor 15 by the command of the flow velocity setting unit 26 and rotates the supplying vanes 13 of the valve 14 at a low speed to reduce the feed quantity of the powder, performing a fine weighing. Thus, when a weighed value reaches a value obtained by subtracting a head correcting value from a set weighed value, the cylinder 18 closes the valve 19 and the motor 15 is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164632A JPS649320A (en) | 1987-06-30 | 1987-06-30 | Weighing of powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164632A JPS649320A (en) | 1987-06-30 | 1987-06-30 | Weighing of powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS649320A true JPS649320A (en) | 1989-01-12 |
Family
ID=15796890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62164632A Pending JPS649320A (en) | 1987-06-30 | 1987-06-30 | Weighing of powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS649320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227675A (en) * | 1993-02-01 | 1994-08-16 | Raito Kogyo Co Ltd | Supply device for cement and the like |
| JP2009206002A (en) * | 2008-02-29 | 2009-09-10 | Hitachi Ltd | Electromagnetic switch |
| CN102765611A (en) * | 2012-07-06 | 2012-11-07 | 江苏泓明达机械有限公司 | Discharge valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51155664U (en) * | 1975-06-05 | 1976-12-11 | ||
| JPS6136535U (en) * | 1984-08-06 | 1986-03-06 | 川崎製鉄株式会社 | Powder supply device |
-
1987
- 1987-06-30 JP JP62164632A patent/JPS649320A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51155664U (en) * | 1975-06-05 | 1976-12-11 | ||
| JPS6136535U (en) * | 1984-08-06 | 1986-03-06 | 川崎製鉄株式会社 | Powder supply device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227675A (en) * | 1993-02-01 | 1994-08-16 | Raito Kogyo Co Ltd | Supply device for cement and the like |
| JP2009206002A (en) * | 2008-02-29 | 2009-09-10 | Hitachi Ltd | Electromagnetic switch |
| CN102765611A (en) * | 2012-07-06 | 2012-11-07 | 江苏泓明达机械有限公司 | Discharge valve |
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