CN201307036Y - Vibration feeder weighing control circuit - Google Patents
Vibration feeder weighing control circuit Download PDFInfo
- Publication number
- CN201307036Y CN201307036Y CNU2008200300311U CN200820030031U CN201307036Y CN 201307036 Y CN201307036 Y CN 201307036Y CN U2008200300311 U CNU2008200300311 U CN U2008200300311U CN 200820030031 U CN200820030031 U CN 200820030031U CN 201307036 Y CN201307036 Y CN 201307036Y
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- voltage
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- vibration feeder
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Abstract
The utility model relates to a vibration feeder weighing control circuit for an automatic weighing electronic scale, which comprises a feedback control module, a rough feeding relay, a rough feeding regulation resistance, a precise feeding relay, a precise feeding regulation resistance, a semi-wave voltage regulating module, a voltage meter and an electromagnetic vibration feeder. The semi-wave voltage regulating module is a semi-wave controllable silicon control circuit, and an output voltage of the semi-wave voltage regulating module is supplied by a CON terminal; a feedback signal of the feedback module is connected with the input end of the vibration feeder; the rough and the precise feeding voltages are supplied by a Ug terminal; according to the feedback voltage (namely the vibration feeder voltage) between Uf1 and Uf2, the feedback module calculates a CON control value to be inputted into the CON terminal of the voltage regulating module. When the voltage of the intake power source is fluctuated, the feedback module detects the voltage fluctuation between Uf1 and Uf2, and the CON value also varies, thereby ensuring that the control voltage of the vibration feeder is constant. By adopting the voltage negative feedback technology, the stability of the control voltage of the vibration feeder is improved, thereby improving the stability and the weighing precision of the electronic scale.
Description
One, technical field
The utility model relates to a kind of vibra feeder Weighting and Controlling circuit of automatic weighing electronic scales.
Two, background technology
In the automatic bagging machine with weighing scale of granular material, vibra feeder is the weighing feeding device of using always.In order to improve weighing speed and precision, the vibra feeder feed generally is divided into thick feed and thin feed, and vibra feeder control voltage is higher during thick feed, to accelerate feeding coal, improve weighing speed, the control voltage of vibra feeder is lower during thin feed, reduce feeding coal, improve weighing precision.So the stability of vibra feeder control voltage is determining the stability and the precision of Weighing system.The voltage of vibra feeder is controlled by solid-state voltage regulator, but when voltage ripple of power network, the voltage of vibra feeder is fluctuation thereupon also, has so just influenced the stable of feeding coal, and then has influenced the stable and precision of electronic scales.
Three, summary of the invention
The purpose of this utility model provides a kind of vibra feeder Weighting and Controlling circuit of automatic weighing electronic scales, and it adopts the negative feedback control technology to improve the stability of vibra feeder voltage, thereby guarantees that feed is stable, improves weighing stability and precision.
The purpose of this utility model is achieved like this: adopt negative feedback vibra feeder control circuit, comprise half-wave voltage regulating module, feedback module, slightly give regulating relay and slightly give regulator potentiometer, carefully give regulating relay and carefully give regulator potentiometer, vibra feeder, voltage table.The half-wave voltage regulating module is a kind of half-wave SCR control circuit, and its output voltage is given by the CON end.The feedback signal of feedback module connects the input end of vibra feeder, slightly, thin feed voltage is given by the Ug end, feedback module is the feedback voltage (being vibra feeder voltage) between given and Uf1 and the Uf2 according to Ug, calculates the CON controlling value and is input to voltage regulating module CON end.When the incoming power voltage fluctuation, feedback module detects voltage fluctuation between Uf1 and the Uf2, and its CON value changes thereupon, and guarantees that the control voltage of vibra feeder is constant.
Four, description of drawings
Accompanying drawing 1 is the utility model vibra feeder Weighting and Controlling circuit diagram.
Wherein:
1----feedback module 2----carefully gives regulator potentiometer RP26----half-wave voltage regulating module 7----voltage table 8----vibro-feeder carefully for regulating relay KA2 5----slightly for regulator potentiometer RP14----slightly for regulating relay KA1 3----
Five, embodiment
With reference to accompanying drawing, the utility model vibra feeder Weighting and Controlling circuit, its adopts negative feedback vibra feeder control circuit, comprise half-wave voltage regulating module (6), feedback module (1), slightly give regulating relay (KA1) and potentiometer (RP1), carefully to regulating relay (KA2) and potentiometer (RP2), vibra feeder (8), voltage table (7).Half-wave voltage regulating module (6) is a kind of half-wave SCR control circuit, and its output voltage is given by the CON end.The CON end of feedback module (1) links to each other with voltage regulating module (6) CON end, the Ug end of feedback module (1) links to each other with the thin regulating relay (KA2) of giving with the thick regulating relay (KA1) of giving respectively, the input end that the feedback signal Uf1 of feedback module (1) and Uf2 connect vibra feeder, slightly, thin feed voltage inserts the Ug end by thick potentiometer (RP1) and the thin potentiometer (RP2) of giving given respectively, feedback module is the feedback voltage between given and Uf1 and the Uf2 according to Ug, calculates the CON controlling value and is input to voltage regulating module CON end.Its course of work: give regulating relay (KA1) and carefully give regulating relay (KA2) when all disconnecting when thick, Ug voltage is zero, and feedback loop output signal CON also is zero, and voltage regulating module output also is zero, and this moment, vibra feeder was motionless.When middle relay K A1 closes, slightly give voltage (bigger) by the thick given Ug of potentiometer (RP1) of giving, feedback module calculates feedback loop output signal CON (bigger) and is input to half-wave voltage regulating module CON end, and voltage regulating module output is bigger, and this moment, Vib. carried out thick feed.When middle relay K A2 closes, carefully give voltage (less) by the thin given Ug of potentiometer RP2 of giving, feedback module calculates feedback loop output signal CON (less) and is input to voltage regulating module CON end, and the output of half-wave voltage regulating module is less, and this moment, Vib. carried out thin feed.
In the feed process, if between incoming power AC1 and the AC2 during voltage decreases, half-wave voltage regulating module output voltage also can diminish, feedback module detects voltage between Uf1 and the Uf2 immediately, its CON value increases thereupon, and makes half-wave voltage regulating module output voltage increase, and reaches the primary voltage value; When if voltage becomes big between incoming power AC1 and the AC2, it is big that the voltage regulating module output voltage also can become, feedback module detects voltage between Uf1 and the Uf2 immediately, its CON value reduces thereupon, and make half-wave voltage regulating module output voltage reduce, reach the primary voltage value, thereby the control voltage that guarantees vibra feeder is stable.
Claims (2)
1, a kind of vibra feeder Weighting and Controlling circuit of automatic weighing electronic scales, adopt negative feedback vibra feeder control circuit, it comprises: half-wave voltage regulating module (6), feedback module (1), thick regulating relay (KA1) and the potentiometer (RP1) given, thin regulating relay (KA2) and the potentiometer (RP2) given, vibra feeder (8), voltage table (7), it is characterized in that: half-wave voltage regulating module (6) is a kind of half-wave SCR control circuit, the CON end of feedback module (1) links to each other with voltage regulating module (6) CON end, the Ug end of feedback module (1) links to each other the input end that the feedback signal Uf1 of feedback module (1) and Uf2 connect vibra feeder with the thick regulating relay (KA1) of giving with the thin regulating relay (KA2) of giving respectively.
2, vibra feeder Weighting and Controlling circuit as claimed in claim 1, it is characterized in that thick, thin feed voltage is given by the Ug end, feedback module (1) is the feedback voltage between given and Uf1 and the Uf2 according to Ug, calculates the CON controlling value and is input to half-wave voltage regulating module (6) CON end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200300311U CN201307036Y (en) | 2008-08-22 | 2008-08-22 | Vibration feeder weighing control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200300311U CN201307036Y (en) | 2008-08-22 | 2008-08-22 | Vibration feeder weighing control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307036Y true CN201307036Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200300311U Expired - Fee Related CN201307036Y (en) | 2008-08-22 | 2008-08-22 | Vibration feeder weighing control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307036Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248190A (en) * | 2016-09-07 | 2016-12-21 | 合肥三冠包装科技有限公司 | A kind of four-head scale Weighing module and vibrations regulating circuit |
| CN106248188A (en) * | 2016-09-07 | 2016-12-21 | 合肥三冠包装科技有限公司 | A kind of weighing circuit of six scale weighing instruments |
| CN106441542A (en) * | 2016-09-07 | 2017-02-22 | 合肥三冠包装科技有限公司 | Voltage regulating vibrator voltage regulating circuit for standard six-head weigher |
| CN108896651A (en) * | 2018-07-05 | 2018-11-27 | 烟台鲁宝钢管有限责任公司 | A kind of non-contact type Sectional magnetization, demagnetization overall-in-one control schema instrument and control method |
-
2008
- 2008-08-22 CN CNU2008200300311U patent/CN201307036Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248190A (en) * | 2016-09-07 | 2016-12-21 | 合肥三冠包装科技有限公司 | A kind of four-head scale Weighing module and vibrations regulating circuit |
| CN106248188A (en) * | 2016-09-07 | 2016-12-21 | 合肥三冠包装科技有限公司 | A kind of weighing circuit of six scale weighing instruments |
| CN106441542A (en) * | 2016-09-07 | 2017-02-22 | 合肥三冠包装科技有限公司 | Voltage regulating vibrator voltage regulating circuit for standard six-head weigher |
| CN106248190B (en) * | 2016-09-07 | 2018-09-14 | 合肥三冠包装科技有限公司 | A kind of four-head scale Weighing module and vibrations regulating circuit |
| CN106441542B (en) * | 2016-09-07 | 2019-02-01 | 合肥三冠包装科技有限公司 | A kind of pressure regulation vibrator regulating circuit of six scales of standard |
| CN106248188B (en) * | 2016-09-07 | 2019-02-01 | 合肥三冠包装科技有限公司 | A kind of weighing circuit of six scale weighing instruments |
| CN108896651A (en) * | 2018-07-05 | 2018-11-27 | 烟台鲁宝钢管有限责任公司 | A kind of non-contact type Sectional magnetization, demagnetization overall-in-one control schema instrument and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |