CN114812764B - Oil quantity metering system for filling edible oil - Google Patents
Oil quantity metering system for filling edible oil Download PDFInfo
- Publication number
- CN114812764B CN114812764B CN202111352034.3A CN202111352034A CN114812764B CN 114812764 B CN114812764 B CN 114812764B CN 202111352034 A CN202111352034 A CN 202111352034A CN 114812764 B CN114812764 B CN 114812764B
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- Prior art keywords
- resistor
- capacitor
- metering
- detection
- operational amplifier
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- 239000008157 edible vegetable oil Substances 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000005303 weighing Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 34
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
- B65B3/28—Methods or devices for controlling the quantity of the material fed or filled by weighing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses an oil quantity metering system for filling edible oil, which comprises a metering detection module and a data processing module, wherein the metering detection module comprises a weighing sensor arranged at the bottom of a metering barrel, detection signals of the weighing sensor are sequentially processed by an amplifying and filtering regulating circuit and a noise reduction stabilizing circuit and then are sent into the data processing module, the amplifying and filtering regulating circuit carries out accurate filtering by utilizing a band-pass filter, so that the external high-frequency interference is well eliminated, the precision of the detection signals is improved, the zero drift influence caused by the ambient temperature is effectively avoided by adding phase compensation, and the output stability of the detection signals is improved; the LC parallel resonance is added to the noise reduction stabilizing circuit in the amplifying process to notch the power frequency signal, so that the power frequency interference is effectively inhibited, the accuracy and stability of the controller for receiving the detection signal are ensured, the accuracy of weighing detection is further improved, and the edible oil filling control is ensured to be accurate and effective.
Description
Technical Field
The invention relates to the technical field of edible oil filling, in particular to an oil quantity metering system for edible oil filling.
Background
At present, four modes of liquid level measurement, speed measurement, piston volume measurement or weight increase method electronic weighing are widely adopted in edible oil filling equipment. The traditional filling mode has the defects of low metering precision and the like, is unsuitable for edible oil with high viscosity, and the traditional oil metering device is generally provided with a weighing sensor at the bottom of a metering barrel, for example, the application number is 201120108504.7, and the name is an utility model patent of an edible oil filling machine.
The present invention provides a new solution to this problem.
Disclosure of Invention
In view of the foregoing, it is an object of the present invention to provide an oil metering system for filling edible oil.
The technical scheme for solving the problems is as follows: the oil quantity metering system for filling edible oil comprises a metering detection module and a data processing module, wherein the metering detection module comprises a weighing sensor arranged at the bottom of a metering barrel, detection signals of the weighing sensor are sequentially processed by an amplifying and filtering regulating circuit and a noise reduction stabilizing circuit and then are sent into the data processing module, the data processing module comprises a controller and a display, the input end of the controller is connected with the output end of the noise reduction stabilizing circuit, and the controller is connected with the display through a data serial port.
Further, the amplifying and filtering adjusting circuit comprises a resistor R1, one end of the resistor R1 is connected with a capacitor C1, one end of the resistor R2 and the signal output end of the weighing sensor, the other ends of the resistor R1 and the capacitor C1 are grounded, the other ends of the resistor R2 are connected with one ends of the resistors R3 and R5, the other ends of the resistor R3 are connected with the output end of the operational amplifier AR1 and the inverting input end of the capacitor AR2 and one end of the capacitor C3 through a resistor R4, the other end of the resistor R5 is connected with the inverting input end of the operational amplifier AR2 and the other end of the capacitor C3 through a resistor R6 and a capacitor C2 which are connected in parallel, the other end of the capacitor C3 is connected with the inverting input end of the operational amplifier AR1 and one end of the capacitor C4 through a resistor R7, and the other end of the capacitor C4 is grounded.
Further, the noise reduction stabilizing circuit comprises a MOS tube Q1, a grid electrode of the MOS tube Q1 is connected with an output end of the operational amplifier AR2, a source electrode of the MOS tube Q1 is grounded through a resistor R8 and a voltage stabilizing diode DZ1 which are connected in parallel, a drain electrode of the MOS tube Q1 is connected with one end of a capacitor C5, an inductor L1 and a resistor R5, and the other ends of the capacitor C5 and the inductor L1 are connected with the controller.
Through the technical scheme, the invention has the beneficial effects that:
1. According to the invention, the amplification filtering adjusting circuit is adopted to process the detection signal, the band-pass filter formed by the operational amplifiers AR1 and AR2 is utilized to carry out accurate filtering, so that the external high-frequency interference is well eliminated, the precision of the detection signal is improved, the phase compensation is added, the zero drift influence caused by the ambient temperature is effectively avoided, and the stability of the output of the detection signal is improved.
2. The MOS tube Q1 is adopted by the noise reduction stabilizing circuit to carry out follow amplification on the output signal of the amplifying and filtering regulating circuit, LC parallel resonance is added in the amplifying process to carry out notch on the power frequency signal, the power frequency interference is effectively restrained, and the accuracy and the stability of the controller on the receiving of the detection signal are ensured.
3. According to the invention, after the detection signals of the weighing sensor are conditioned, the interference of the external environment temperature and the power frequency signals on the detection signals is effectively avoided, the accuracy of weighing detection is improved, and the accurate and effective edible oil filling control is ensured.
Drawings
FIG. 1 is a schematic diagram of the connection of the metering detection module of the present invention.
Detailed Description
The foregoing and other features, aspects and advantages of the present invention will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying fig. 1. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The oil quantity metering system for filling edible oil comprises a metering detection module and a data processing module, wherein the metering detection module comprises a weighing sensor arranged at the bottom of a metering barrel, detection signals of the weighing sensor are sequentially processed by an amplifying and filtering regulating circuit and a noise reduction stabilizing circuit and then are sent into the data processing module, the data processing module comprises a controller and a display, the input end of the controller is connected with the output end of the noise reduction stabilizing circuit, and the controller is connected with the display through a data serial port.
As shown in fig. 1, the amplifying and filtering adjusting circuit includes a resistor R1, one end of the resistor R1 is connected to a capacitor C1, one end of the resistor R2 and a signal output end of the weighing sensor, the other ends of the resistor R1 and the capacitor C1 are grounded, the other end of the resistor R2 is connected to one ends of resistors R3 and R5, the other end of the resistor R3 is connected to an output end of the operational amplifier AR1, an inverting input end of the AR2 and one end of the capacitor C3, the other end of the resistor R5 is connected to an inverting input end of the operational amplifier AR2, and is connected to an output end of the operational amplifier AR2 and the other end of the capacitor C3 through a resistor R7, the other end of the capacitor C3 is connected to an inverting input end of the operational amplifier AR1 and one end of the capacitor C4, and the other end of the capacitor C4 is grounded.
The noise reduction stabilizing circuit comprises a MOS tube Q1, wherein a grid electrode of the MOS tube Q1 is connected with an output end of an operational amplifier AR2, a source electrode of the MOS tube Q1 is grounded through a resistor R8 and a voltage stabilizing diode DZ1 which are connected in parallel, a drain electrode of the MOS tube Q1 is connected with one end of a capacitor C5, an inductor L1 and one end of a resistor R5, and the other ends of the capacitor C5 and the inductor L1 are connected with the controller.
When the weighing device is particularly used, the weighing sensor detects the quality change of edible oil in the metering barrel in real time and converts the quality change into an electric signal for output; in order to eliminate the influence of external environment interference, an amplifying and filtering adjusting circuit is adopted to process a detection signal, wherein RC filtering is formed by a resistor R1 and a capacitor C1 to carry out low-pass filtering on the detection signal, mechanical noise interference generated in the filling process is eliminated, then the detection signal is sent into a band-pass filter formed by an operational amplifier AR1 and an operational amplifier AR2 to carry out further accurate filtering, and a T-shaped RC filtering network formed by a resistor-capacitor element forms band-pass filtering under the driving of the operational amplifier, so that external high-frequency interference is well eliminated, and the precision of the detection signal is improved; meanwhile, the resistor R6 and the capacitor C2 form phase compensation at the feedback end of the operational amplifier AR2, so that the zero drift influence caused by the ambient temperature is effectively avoided, and the stability of the output of the detection signal is improved.
The MOS tube Q1 is adopted by the noise reduction stabilizing circuit to carry out follow amplification on the output signal of the amplifying and filtering regulating circuit, LC parallel resonance formed by the inductor L1 and the capacitor C5 is added in the amplifying process to carry out notch on the power frequency signal, the power frequency interference is effectively restrained, and the voltage stabilizing diode DZ1 is arranged at the source end of the MOS tube Q1 to play a stabilizing role on the notch process, so that the accuracy and stability of the controller on receiving the detection signal are ensured.
The controller processes the received detection signals, calculates the real-time filling quality of the edible oil in the metering barrel, stops filling when a system with the filling quality reaches a set target value, and sends the filling quality value to the display for display, so that the edible oil metering barrel is convenient for workers to check. According to the invention, after the detection signals of the weighing sensor are conditioned, the interference of the external environment temperature and the power frequency signals on the detection signals is effectively avoided, the accuracy of weighing detection is improved, and the accurate and effective edible oil filling control is ensured.
While the invention has been described in connection with certain embodiments, it is not intended that the invention be limited thereto; for those skilled in the art to which the present invention pertains and the related art, on the premise of based on the technical scheme of the present invention, the expansion, the operation method and the data replacement should all fall within the protection scope of the present invention.
Claims (2)
1. A oil mass measurement system for edible oil filling, including measurement detection module and data processing module, its characterized in that: the metering detection module comprises a weighing sensor arranged at the bottom of the metering barrel, detection signals of the weighing sensor are sequentially processed by the amplifying and filtering adjustment circuit and the noise reduction stabilizing circuit and then are sent into the data processing module, the data processing module comprises a controller and a display, the input end of the controller is connected with the output end of the noise reduction stabilizing circuit, and the controller is connected with the display through a data serial port;
The amplifying and filtering adjusting circuit comprises a resistor R1, one end of the resistor R1 is connected with a capacitor C1, one end of the resistor R2 and the signal output end of the weighing sensor, the other ends of the resistor R1 and the capacitor C1 are grounded, the other ends of the resistor R2 are connected with one ends of the resistors R3 and R5, the other ends of the resistor R3 are connected with the output end of the operational amplifier AR1, the non-inverting input end of the AR2 and one end of the capacitor C3 through a resistor R4, the other ends of the resistor R5 are connected with the non-inverting input end of the operational amplifier AR2, the other ends of the resistor R6 and the capacitor C2 which are connected in parallel are connected with the output end of the operational amplifier AR2 and the other end of the capacitor C3, the other ends of the capacitor C3 are connected with the non-inverting input end of the operational amplifier AR1 and one end of the capacitor C4 through a resistor R7, and the other ends of the capacitor C4 are grounded.
2. The oil metering system for edible oil filling according to claim 1, wherein: the noise reduction stabilizing circuit comprises a MOS tube Q1, a grid electrode of the MOS tube Q1 is connected with an output end of an operational amplifier AR2, a source electrode of the MOS tube Q1 is grounded through a resistor R8 and a voltage stabilizing diode DZ1 which are connected in parallel, a drain electrode of the MOS tube Q1 is connected with one end of a capacitor C5, an inductor L1 and a resistor R5, and the other ends of the capacitor C5 and the inductor L1 are connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352034.3A CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352034.3A CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114812764A CN114812764A (en) | 2022-07-29 |
| CN114812764B true CN114812764B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111352034.3A Active CN114812764B (en) | 2021-11-16 | 2021-11-16 | Oil quantity metering system for filling edible oil |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204236495U (en) * | 2014-10-14 | 2015-04-01 | 中州大学 | A kind of noise reduction system of shaft temperature detector |
| CN211919150U (en) * | 2020-04-14 | 2020-11-13 | 漯河市百威生物技术有限公司 | Water-soluble fertilizer finished product weighing system |
| CN212058990U (en) * | 2020-06-18 | 2020-12-01 | 河南顺圆水处理技术有限公司 | Surface water quality treatment monitoring system |
| CN212082472U (en) * | 2020-05-15 | 2020-12-04 | 开封宏达自动化仪表有限公司 | Precision type intelligent vortex shedding flowmeter |
| CN112506113A (en) * | 2020-12-29 | 2021-03-16 | 无锡晓群机电科技有限公司 | Smart city electric power big data information acquisition system |
| CN213286712U (en) * | 2020-08-19 | 2021-05-28 | 河南森源集团高强电瓷有限公司 | High-voltage electric porcelain ball-milling raw material proportioning system |
| CN113391085A (en) * | 2021-06-16 | 2021-09-14 | 沧州市科技创业中心 | Sensor output filter device |
-
2021
- 2021-11-16 CN CN202111352034.3A patent/CN114812764B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204236495U (en) * | 2014-10-14 | 2015-04-01 | 中州大学 | A kind of noise reduction system of shaft temperature detector |
| CN211919150U (en) * | 2020-04-14 | 2020-11-13 | 漯河市百威生物技术有限公司 | Water-soluble fertilizer finished product weighing system |
| CN212082472U (en) * | 2020-05-15 | 2020-12-04 | 开封宏达自动化仪表有限公司 | Precision type intelligent vortex shedding flowmeter |
| CN212058990U (en) * | 2020-06-18 | 2020-12-01 | 河南顺圆水处理技术有限公司 | Surface water quality treatment monitoring system |
| CN213286712U (en) * | 2020-08-19 | 2021-05-28 | 河南森源集团高强电瓷有限公司 | High-voltage electric porcelain ball-milling raw material proportioning system |
| CN112506113A (en) * | 2020-12-29 | 2021-03-16 | 无锡晓群机电科技有限公司 | Smart city electric power big data information acquisition system |
| CN113391085A (en) * | 2021-06-16 | 2021-09-14 | 沧州市科技创业中心 | Sensor output filter device |
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| Publication number | Publication date |
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| CN114812764A (en) | 2022-07-29 |
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