CN212133815U - Diamond micropowder weighing control system - Google Patents
Diamond micropowder weighing control system Download PDFInfo
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- CN212133815U CN212133815U CN202020900694.5U CN202020900694U CN212133815U CN 212133815 U CN212133815 U CN 212133815U CN 202020900694 U CN202020900694 U CN 202020900694U CN 212133815 U CN212133815 U CN 212133815U
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- weighing
- resistor
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Abstract
The utility model discloses a diamond micropowder weighing control system, including feeding bin, weighing platform and control mechanism, the weighing bench is provided with weighing sensor, and weighing sensor's detected signal sends into control mechanism after amplifying compensation circuit and two fortune are put the stabilizing circuit in proper order, and amplifying compensation circuit utilizes the negative feedback compensation principle can compensate the signal well, improves the detected signal output waveform to reduce the system error that adhesion or card material formed appear in the unloading process, improve the stability of weighing detection; the dual operational amplifier stabilizing circuit stabilizes the current amplitude of the detection signal by using a constant current source circuit principle, forms a stable voltage amplitude signal by using a triode voltage stabilizing circuit principle, and sends the stable voltage amplitude signal to the control mechanism to quickly and accurately calculate the weight of the material, and the batching control is accurate and reliable.
Description
Technical Field
The utility model relates to a diamond miropowder technical field that weighs especially relates to a diamond miropowder control system that weighs.
Background
Diamond micropowder has become more and more widely used as a fine abrasive in various industries. Diamond micropowder inevitably encounters weighing problems during the sale and use, particularly in the manufacture of diamond tools. The existing diamond micro powder weighing device gradually tends to be automatic, however, in the process of weighing and discharging, materials are often adhered or blocked, discharging is unstable, and errors exist in detection of a weighing sensor, so that the quality stability of final products is influenced.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a diamond micro powder weighing control system.
The technical scheme for solving the problem is as follows: the utility model provides a diamond micropowder weighing control system, includes feeding bin, weighing platform and control mechanism, the bench of weighing is provided with weighing sensor, weighing sensor's detected signal is sent into after enlargiing compensating circuit and two fortune in proper order and putting stabilizing circuit and handle among the control mechanism, enlarge compensating circuit and put ware AR1 including fortune, fortune puts the homophase input end of ware AR1 and passes through resistance R2 connecting resistance R1, electric capacity C1's one end, resistance R1's other end ground connection, electric capacity C1's the other end is connected weighing sensor's signal output part, fortune puts the homophase input end of ware AR1 and passes through parallelly connected resistance R4, electric capacity C3 ground connection to connect fortune through parallelly connected resistance R3, electric capacity C2 and put the output of ware AR 1.
Preferably, the operational amplifier stabilizing circuit comprises operational amplifiers AR2 and AR3, an inverting input terminal of the operational amplifier AR2 is connected to an output terminal of the operational amplifier AR1 through a resistor R5, a non-inverting input terminal of the operational amplifier AR2 is connected to one ends of resistors R6 and R7, the other end of the resistor R7 is grounded, an output terminal of the operational amplifier AR2 is connected to the other end of the resistor R6 and is connected to a non-inverting input terminal of the operational amplifier AR3 through a resistor R8, and an inverting input terminal and an output terminal of the operational amplifier AR3 are connected to an inverting input terminal of the operational amplifier AR2 through a resistor R9.
Preferably, the dual operational amplifier stabilizing circuit further comprises a transistor VT1, a collector of the transistor VT1 is connected to one end of the resistor R10 and a non-inverting input end of the operational amplifier AR3, a base of the transistor VT1 and the other end of the resistor R10 are connected to a cathode of the zener diode DZ1, an anode of the zener diode DZ1 is grounded, and an emitter of the transistor VT1 is connected to the control mechanism.
Preferably, the control mechanism is a PLC controller.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model adopts the weighing sensor to detect the weight of diamond micropowder material above the weighing platform in real time, the detection signal is firstly sent into the amplification compensation circuit to be amplified, the negative feedback compensation principle is utilized to well compensate the signal, the output waveform of the detection signal is improved, thereby reducing the system error formed by adhesion or material jamming in the blanking process and improving the stability of weighing detection;
2. the dual operational amplifier stabilizing circuit stabilizes the current amplitude of the detection signal by using a constant current source circuit principle, forms a stable voltage amplitude signal by using a triode voltage stabilizing circuit principle, and sends the stable voltage amplitude signal to the control mechanism to quickly and accurately calculate the weight of the material, and the batching control is accurate and reliable.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The diamond micro powder weighing control system comprises a feeding bin, a weighing platform and a control mechanism, wherein a weighing sensor is arranged on the weighing platform, and detection signals of the weighing sensor are sequentially processed by an amplification compensation circuit and a double-operational amplifier stabilizing circuit and then are sent into the control mechanism. The weighing sensor is used for detecting the weight of the diamond micro-powder material above the weighing platform and converting the weight into an electric signal proportional to the weight to be output. Since the electric signal is usually a frequency signal in the order of millivolts, the detection signal is amplified by an amplification compensation circuit.
The amplifying compensation circuit comprises an operational amplifier AR1, the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R1 and one end of a capacitor C1 through a resistor R2, the other end of the resistor R1 is grounded, the other end of a capacitor C1 is connected with the signal output end of the weighing sensor, the non-inverting input end of the operational amplifier AR1 is grounded through a resistor R4 and a capacitor C3 which are connected in parallel, and is connected with the output end of the operational amplifier AR1 through a resistor R3 and a capacitor C2 which are connected in parallel. Wherein, electric capacity C1 and electric capacity R1 form RC high pass filtering and eliminate external low frequency interference, then send into and carry and put and amplify in the ware AR1, resistance R3, electric capacity C2 forms resistance-capacitance feedback compensation at the feedback end of fortune ware AR1, it is unstable when weighing that material in the feed bin has adhesion or card material to cause in the unloading in-process, utilize the negative feedback compensation principle to compensate the signal well, improve the detected signal output waveform, thereby reduce system error, improve the stability of weighing detection.
In order to further stabilize the output signal of the operational amplifier AR1, a dual operational amplifier stabilization circuit is used to adjust the detection signal. The specific structure of the double operational amplifier stabilizing circuit comprises operational amplifiers AR2 and AR3, wherein an inverting input end of the operational amplifier AR2 is connected with an output end of the operational amplifier AR1 through a resistor R5, a non-inverting input end of the operational amplifier AR2 is connected with one ends of resistors R6 and R7, the other end of the resistor R7 is grounded, an output end of the operational amplifier AR2 is connected with the other end of the resistor R6 and is connected with a non-inverting input end of the operational amplifier AR3 through a resistor R8, and the inverting input end and the output end of the operational amplifier AR3 are connected with an inverting input end of the operational amplifier AR2 through a resistor R9.
The dual operational amplifier stabilizing circuit further comprises a triode VT1, wherein the collector of the triode VT1 is connected with one end of a resistor R10 and the non-inverting input end of the operational amplifier AR3, the base of the triode VT1 and the other end of the resistor R10 are connected with the cathode of a voltage stabilizing diode DZ1, the anode of the voltage stabilizing diode DZ1 is grounded, and the emitter of the triode VT1 is connected with a control mechanism.
In the working process of the double operational amplifier stabilizing circuit, the operational amplifier AR2 and the AR3 form a constant current source circuit to perform current stabilizing processing on the output signal of the operational amplifier AR1, the magnitude of the current is only related to the magnitude of the output current of the operational amplifier AR1 and is not related to the load of a rear-stage circuit, and therefore the stability of the output current of the detection signal is greatly improved. Then the resistor R10, the voltage stabilizing diode DZ1 and the triode VT1 use the principle of triode voltage stabilizing circuit to stabilize the output signal of the constant current source circuit, and finally the stable voltage amplitude signal is sent to the control mechanism for calculation.
The utility model discloses when specifically using, the diamond micropowder material weight of weighing sensor real-time detection platform top of weighing, its detected signal send into at first and enlarge compensating circuit and enlarge, utilize negative feedback compensation principle to compensate the signal well, improve detected signal output waveform to reduce the unloading in-process and appear adhesion or card material and the systematic error who forms, improve the stability of the detection of weighing. The dual operational amplifier stabilizing circuit utilizes the constant current source circuit principle to stabilize the current amplitude of a detection signal, and utilizes the triode voltage stabilizing circuit principle to form a stable voltage amplitude signal to be sent into the control mechanism for calculation, the control mechanism can select a PLC (programmable logic controller) and has strong operation processing capacity, the material weight can be rapidly and accurately calculated, and the batching control is accurate and reliable.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a diamond miropowder weighing control system, includes feed bin, weighing platform and control mechanism, its characterized in that: the weighing platform is provided with a weighing sensor, detection signals of the weighing sensor are sequentially processed by an amplification compensation circuit and a double operational amplifier stabilizing circuit and then sent into the control mechanism, the amplification compensation circuit comprises an operational amplifier AR1, the in-phase input end of the operational amplifier AR1 is connected with one end of a resistor R1 and one end of a capacitor C1 through a resistor R2, the other end of the resistor R1 is grounded, the other end of the capacitor C1 is connected with the signal output end of the weighing sensor, the in-phase input end of the operational amplifier AR1 is grounded through a resistor R4 and a capacitor C3 which are connected in parallel, and is connected with the output end of the operational amplifier AR1 through a resistor R3 and a capacitor C2 which are connected in parallel.
2. The diamond micropowder weighing control system of claim 1, characterized in that: the operational amplifier stabilizing circuit comprises operational amplifiers AR2 and AR3, wherein an inverting input end of the operational amplifier AR2 is connected with an output end of the operational amplifier AR1 through a resistor R5, a non-inverting input end of the operational amplifier AR2 is connected with one ends of resistors R6 and R7, the other end of the resistor R7 is grounded, an output end of the operational amplifier AR2 is connected with the other end of the resistor R6 and is connected with a non-inverting input end of the operational amplifier AR3 through a resistor R8, and an inverting input end and an output end of the operational amplifier AR3 are connected with an inverting input end of the operational amplifier AR2 through a resistor R9.
3. The diamond micropowder weighing control system of claim 2, characterized in that: the dual operational amplifier stabilizing circuit further comprises a triode VT1, wherein the collector of the triode VT1 is connected with one end of a resistor R10 and the non-inverting input end of the operational amplifier AR3, the base of the triode VT1 and the other end of the resistor R10 are connected with the cathode of a voltage stabilizing diode DZ1, the anode of the voltage stabilizing diode DZ1 is grounded, and the emitter of the triode VT1 is connected with the control mechanism.
4. A diamond micropowder weighing control system according to any one of claims 1 to 3, characterized in that: the control mechanism adopts a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020900694.5U CN212133815U (en) | 2020-05-26 | 2020-05-26 | Diamond micropowder weighing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020900694.5U CN212133815U (en) | 2020-05-26 | 2020-05-26 | Diamond micropowder weighing control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212133815U true CN212133815U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020900694.5U Active CN212133815U (en) | 2020-05-26 | 2020-05-26 | Diamond micropowder weighing control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212133815U (en) |
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2020
- 2020-05-26 CN CN202020900694.5U patent/CN212133815U/en active Active
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