CN209925321U - Thin type proportional valve - Google Patents
Thin type proportional valve Download PDFInfo
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- CN209925321U CN209925321U CN201920108770.6U CN201920108770U CN209925321U CN 209925321 U CN209925321 U CN 209925321U CN 201920108770 U CN201920108770 U CN 201920108770U CN 209925321 U CN209925321 U CN 209925321U
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- mainboard
- air inlet
- shell
- solenoid valve
- connecting block
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Abstract
The utility model discloses a slim proportional valve, including the piece of admitting air, sensor board, connecting block, mainboard, shell, display panel, air inlet solenoid valve and exhaust solenoid valve, the piece dress of admitting air is established on the shell, and the sensor board is installed on the piece of admitting air, and the mainboard is installed inside the shell to be connected with the piece of admitting air through the connecting block, mainboard and sensor board signal connection, display panel install on the shell, and air inlet solenoid valve and exhaust solenoid valve all are connected with the mainboard. The utility model discloses simple structure effectively improves control accuracy, can reach the control accuracy of 0.1kPa level, and low power dissipation, long service life, temperature coefficient are stable, and the industrial control signal of standard, the customer access equipment of being convenient for uses, need not to set up the parameter, the accurate control pressure of internal control algorithm, and response speed is fast, simultaneously, it is convenient to adopt integrated design, installation, is fit for installing in narrow complicated industrial environment.
Description
Technical Field
The utility model relates to a proportional valve technical field, more specifically say, relate to a slim proportional valve.
Background
The proportional valve is widely applied to industrial equipment such as 3D printing, coating machines, slitting machines, grinding machines, hot bending machines and air blowing machines, and is convenient for controlling the stroke of a cylinder or the air pressure of the equipment. At present, the appearance volume of common proportional valves on the market is large, the proportional valves are not convenient to install in narrow and complex industrial environments, a plurality of proportional valves cannot be installed, in addition, the control precision of the proportional valves is low, the proportional valves are mostly above 1kPa level, and the requirement of high precision cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect among the prior art, provide an effectively improve control accuracy, can reach the control accuracy of 0.1kPa level, and low power dissipation, long service life, temperature coefficient are stable, the industrial control signal of standard, the customer access equipment of being convenient for uses, need not to set up the parameter, the accurate control pressure of internal control algorithm, it is fast to sound, simultaneously, adopt integrated design, it is convenient to install, be fit for installing the slim proportional valve in narrow complicated industrial environment.
In order to achieve the above object, the utility model provides a slim proportional valve, including air inlet block, sensor board, connecting block, mainboard, shell, display panel, air inlet solenoid valve and exhaust solenoid valve, the air inlet block dress is established on the shell, the sensor board is installed on the air inlet block, the mainboard is installed inside the shell to be connected with the air inlet block through the connecting block, mainboard and sensor board signal connection, display panel installs on the shell, air inlet solenoid valve and exhaust solenoid valve all are connected with the mainboard.
Preferably, the air conditioner further comprises an O-shaped sealing ring, an air inlet sealing gasket and a main board sealing gasket, wherein the O-shaped sealing ring is arranged between the air inlet block and the sensor board, the air inlet sealing gasket is arranged between the sensor board and the connecting block, and the main board sealing gasket is arranged between the connecting block and the main board.
Preferably, the air conditioner further comprises a connecting block fixing screw, a mainboard fixing screw and a shell fixing screw, wherein the connecting block is arranged on the air inlet block through the connecting block fixing screw, the mainboard is arranged inside the shell through the mainboard fixing screw, and the shell is fixedly connected with the air inlet block through the shell fixing screw.
Preferably, the air inlet device further comprises a first clamping rail elastic steel wire and a second clamping rail elastic steel wire, wherein the first clamping rail elastic steel wire and the second clamping rail elastic steel wire are respectively arranged at the upper end and the lower end of the outside of the air inlet block.
Preferably, the main board comprises a signal input module, a control unit module, a signal feedback acquisition module and an electromagnetic valve driving module, the control unit module is respectively connected with the signal input module, the signal feedback acquisition module and the electromagnetic valve driving module, and the electromagnetic valve driving module is respectively connected with the air inlet electromagnetic valve and the air outlet electromagnetic valve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses simple structure, including the piece of admitting air, the sensor board, the connecting block, the mainboard, and a housing, a display panel, air inlet solenoid valve and exhaust solenoid valve, the piece dress of admitting air is established on the shell, the sensor board is installed on the piece of admitting air, the mainboard is installed inside the shell, and be connected with the piece of admitting air through the connecting block, mainboard and sensor board signal connection, display panel installs on the shell, air inlet solenoid valve and exhaust solenoid valve all are connected with the mainboard, effectively improve the control accuracy, can reach 0.1kPa level control accuracy, and the low power dissipation, long service life, the temperature coefficient is stable, the industrial control signal of standard, be convenient for the customer to insert the equipment and use, need not to set up the parameter, the accurate control pressure of internal control algorithm, response speed is fast, and simultaneously, adopt integrated design, it is convenient to install, be fit for installing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thin type proportional valve provided by the present invention;
fig. 2 is an exploded schematic view of a thin type proportional valve provided by the present invention;
fig. 3 is a schematic diagram of a main plate of a thin type proportional valve provided by the present invention;
fig. 4 is an operation schematic diagram of a thin type proportional valve provided by the present invention;
fig. 5 is a schematic circuit diagram of a signal acquisition circuit of a thin proportional valve provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 and 2, an embodiment of the present invention provides a thin type proportional valve, which comprises an air inlet block 1, a sensor board 2, a connecting block 3, a main board 4, a housing 5, a display panel 6, an air inlet solenoid valve 7 and an exhaust solenoid valve 8, wherein the air inlet block 1 is installed on the housing 5, the sensor board 2 is installed on the air inlet block 1, the main board 4 is installed inside the housing 5 and connected with the air inlet block 1 through the connecting block 3, the main board 4 is in signal connection with the sensor board 2, the display panel 6 is installed on the housing 5, the air inlet solenoid valve and the exhaust solenoid valve are both connected with the main board 4, and the following description is made on the embodiment in detail by combining with the accompanying drawings.
As shown in fig. 2, the air inlet block 1 is installed on the housing 5, the sensor board 2 is installed on the air inlet block 1, the mainboard 4 is installed inside the housing 5, and is connected with the air inlet block 1 through the connecting block 3, the mainboard 4 is in signal connection with the sensor board 2, the display panel 6 is installed on the housing 5, the air inlet solenoid valve and the exhaust solenoid valve are both connected with the mainboard 4, the PID control algorithm is adopted, the control precision is effectively improved, the control precision of 0.1kPa level can be reached, the power consumption is low, the service life is long, the temperature coefficient is stable, the standard industrial control signal is provided, the convenience is brought to customers to access the equipment for use, the parameters are not required to be set, the accurate control pressure of the internal control algorithm, the response speed is high, meanwhile, the integrated design is adopted, the.
Wherein, still include O type sealing washer 9, the sealed 10 of air inlet gasket and mainboard sealed 11, O type sealing washer 9 is installed between air inlet block 1 and sensor board 2, and the sealed 10 of air inlet gasket is installed between sensor board 2 and connecting block 3, and mainboard sealed 11 is installed between connecting block 3 and mainboard 4.
Wherein, still include connecting block fixed screw 12, mainboard fixed screw 13 and shell fixed screw 14, connecting block 3 is installed on air inlet block 1 through connecting block fixed screw 12, and mainboard 4 is installed inside shell 5 through mainboard fixed screw 13, and shell 5 passes through shell fixed screw 14 and air inlet block 1 fixed connection.
The preferred still includes first card rail elastic steel wire 7 and second card rail elastic steel wire 8, and first card rail elastic steel wire 7 and second card rail elastic steel wire 8 are installed respectively on both ends about the outside of air inlet block 1, through the integrated design of first card rail elastic steel wire 7 and second card rail elastic steel wire 8, make the whole proportional valve installation side by side of can being fit for installing in narrow complicated industrial environment.
As shown in fig. 3, 4 and 5, the main board 4 includes a signal input module, a control unit module, a signal feedback acquisition module and a solenoid valve driving module, the control unit module is respectively connected to the signal input module, the signal feedback acquisition module and the solenoid valve driving module, and the solenoid valve driving module is respectively connected to the air intake solenoid valve and the air exhaust solenoid valve.
Wherein, the mainboard possesses following functional design:
the reverse connection prevention function: through circuit hardware design, a diode D1 is connected in a circuit, so that the circuit has functions of preventing reverse connection of a power supply and reverse connection of output signals, when the power supply is reversely connected, the diode D1 protects the whole circuit device, when the circuit outputs short circuit or overload, a signal indicating whether short circuit or overload exists is obtained through signal change on a sampling resistor, and an MCU main chip outputs a protection signal and disconnects the output signal.
The overvoltage protection function: by detecting the maximum value of the input voltage, when the voltage drops below a set value, the power supply is automatically connected to work, the power supply is automatically disconnected under overvoltage, and a subsequent circuit is protected.
An analog output function: and a feedback signal is obtained through the output pressure value, and the single chip microcomputer collects the feedback signal and outputs a corresponding analog voltage or current signal to the control end upper computer to feed back whether the control requirement is finished.
And (3) LDO power supply design: adopt LDO linear voltage regulator, adopt two-stage steady voltage, the first grade is for the fortune to put, solenoid valve, switch output power supply, and the second grade is for singlechip, sampling conversion chip and display output power supply, makes whole power supply stability good, and output ripple is little.
As shown in fig. 5, which is a schematic circuit diagram of the signal acquisition circuit, pin 3 of the sensor U5 is connected to the positive electrode of the power supply, pins 1 and 6 are connected to the negative electrode of the power supply, and a variable voltage signal is output by a change in the magnitude of pressure, amplified by the operational amplifier, and an analog voltage of 1 to 3V is output.
The flow of the gas circuit is controlled by utilizing the opening and closing length of the electromagnetic valve. When the control unit module works, the control unit module outputs square waves with adjustable pulse width, the charging and discharging time of the capacitor C2 is controlled by the aid of the triode Q2, the square waves are compared with the voltage on the resistor R21 by the aid of the operational amplifier U3-A, a control signal is output, and the triode Q10 is controlled to be switched on or switched off by the aid of the resistor R28, so that the switching-on or switching-off time is controlled, the switching-on and switching-off time of the electromagnetic valve L2 is controlled, and the purpose of controlling the flow of an air circuit is achieved.
The time of the electromagnetic valve is determined by the difference value between the input signal and the current pressure value, and a jump signal generated on a resistor R21 at the moment of closing the electromagnetic valve at the time point is output to a capacitor C9 through an operational amplifier U3-A, so that a triode Q12 and a triode Q3 are conducted, a FB falling edge signal is sent to the control unit module, and timing is started.
During operation, when the input signal rises, the air inlet solenoid valve is opened, part of the supply pressure outputs pressure to the gas output through the air inlet solenoid valve, the output pressure passes through the sensor plate 2, the pressure is corrected by the control circuit and continues to be carried out, if the output pressure is lower than the proportion corresponding to the input signal, the air inlet solenoid valve continues to be opened, otherwise, the air inlet solenoid valve is closed, the exhaust solenoid valve is opened until the output pressure is proportional to the input signal, and the range is between 0.0001 and 0.1 MPa.
To sum up, the utility model discloses simple structure, including the piece of admitting air 1, sensor board 2, connecting block 3, mainboard 4, shell 5, display panel 6, air inlet solenoid valve and exhaust solenoid valve, air inlet block 1 is installed on shell 5, sensor board 2 is installed on air inlet block 1, mainboard 4 is installed inside shell 5, and be connected with air inlet block 1 through connecting block 3, mainboard 4 and sensor board 2 signal connection, display panel 6 is installed on shell 5, air inlet solenoid valve and exhaust solenoid valve all are connected with the mainboard, effectively improve control accuracy, can reach 0.1kPa level control accuracy, and low power dissipation, long service life, temperature coefficient is stable, the industrial control signal of standard, be convenient for customer access equipment uses, need not to set up the parameter, the accurate control pressure of internal control algorithm, response speed is fast, and simultaneously, adopt integrated design, The installation is convenient, is fit for installing in narrow complicated industrial environment.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalent substitutions and all fall within the protection scope of the present invention.
Claims (5)
1. A thin proportioning valve characterized by: including air inlet block (1), sensor board (2), connecting block (3), mainboard (4), shell (5), display panel (6), air inlet solenoid valve and exhaust solenoid valve, air inlet block (1) is installed on shell (5), sensor board (2) are installed on air inlet block (1), mainboard (4) are installed inside shell (5) to be connected with air inlet block (1) through connecting block (3), mainboard (4) and sensor board (2) signal connection, display panel (6) are installed on shell (5), air inlet solenoid valve and exhaust solenoid valve all are connected with mainboard (4).
2. A low profile proportional valve as defined in claim 1, wherein: still include O type sealing washer (9), the sealed pad of admitting air (10) and the sealed pad of mainboard (11), install between admitting air piece (1) and sensor board (2) O type sealing washer (9), the sealed pad of admitting air (10) is installed between sensor board (2) and connecting block (3), the sealed pad of mainboard (11) is installed between connecting block (3) and mainboard (4).
3. A low profile proportional valve as defined in claim 1, wherein: still include connecting block fixed screw (12), mainboard fixed screw (13) and shell fixed screw (14), install on air inlet block (1) connecting block (3) through connecting block fixed screw (12), install inside shell (5) mainboard (4) through mainboard fixed screw (13), shell (5) are through shell fixed screw (14) and air inlet block (1) fixed connection.
4. A low profile proportional valve as defined in claim 1, wherein: still include first card rail elastic steel wire (7) and second card rail elastic steel wire (8), install respectively on the outside upper and lower both ends of air inlet block (1) first card rail elastic steel wire (7) and second card rail elastic steel wire (8).
5. A low profile proportional valve as defined in claim 1, wherein: the main board (4) comprises a signal input module, a control unit module, a signal feedback acquisition module and an electromagnetic valve driving module, wherein the control unit module is respectively connected with the signal input module, the signal feedback acquisition module and the electromagnetic valve driving module, and the electromagnetic valve driving module is respectively connected with an air inlet electromagnetic valve and an air outlet electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108770.6U CN209925321U (en) | 2019-01-23 | 2019-01-23 | Thin type proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108770.6U CN209925321U (en) | 2019-01-23 | 2019-01-23 | Thin type proportional valve |
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| Publication Number | Publication Date |
|---|---|
| CN209925321U true CN209925321U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920108770.6U Active CN209925321U (en) | 2019-01-23 | 2019-01-23 | Thin type proportional valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630492A (en) * | 2019-01-23 | 2019-04-16 | 广东诺能泰自动化技术有限公司 | A kind of slim proportioning valve |
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2019
- 2019-01-23 CN CN201920108770.6U patent/CN209925321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630492A (en) * | 2019-01-23 | 2019-04-16 | 广东诺能泰自动化技术有限公司 | A kind of slim proportioning valve |
| CN109630492B (en) * | 2019-01-23 | 2023-12-05 | 广东诺能泰自动化技术有限公司 | Thin proportional valve |
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