CN109630492B - Thin proportional valve - Google Patents
Thin proportional valve Download PDFInfo
- Publication number
- CN109630492B CN109630492B CN201910061312.6A CN201910061312A CN109630492B CN 109630492 B CN109630492 B CN 109630492B CN 201910061312 A CN201910061312 A CN 201910061312A CN 109630492 B CN109630492 B CN 109630492B
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- China
- Prior art keywords
- air inlet
- main board
- electromagnetic valve
- shell
- block
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a thin proportional valve which comprises an air inlet block, a sensor plate, a connecting block, a main board, a shell, a display panel, an air inlet electromagnetic valve and an air outlet electromagnetic valve, wherein the air inlet block is arranged on the shell, the sensor plate is arranged on the air inlet block, the main board is arranged in the shell and is connected with the air inlet block through the connecting block, the main board is in signal connection with the sensor plate, the display panel is arranged on the shell, and the air inlet electromagnetic valve and the air outlet electromagnetic valve are connected with the main board. The invention has simple structure, effectively improves the control precision, can achieve the control precision of 0.1kPa level, has low power consumption, long service life and stable temperature coefficient, is convenient for the client to access equipment to use by standard industrial control signals, does not need to set parameters, accurately controls the pressure by an internal control algorithm, has high response speed, adopts integrated design, is convenient to install, and is suitable for being installed in narrow and complex industrial environments.
Description
Technical Field
The invention relates to the technical field of proportional valves, in particular to a thin proportional valve.
Background
The proportional valve is widely applied to industrial equipment such as 3D printing, a spraying machine, a slitting machine, a grinding machine, a hot bending machine, blowing air and the like, and is convenient for controlling the stroke of an air cylinder or the air pressure of the equipment. At present, the common proportional valve in the market has larger appearance volume, is inconvenient to install in a narrow and complex industrial environment, cannot install a plurality of proportional valves, has lower control precision of the proportional valves, is more than 1kPa level in most cases, and cannot meet the requirement of high precision.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the thin proportional valve which can effectively improve the control precision, can achieve the control precision of 0.1kPa level, has low power consumption, long service life and stable temperature coefficient, is convenient for a client to access equipment to use due to standard industrial control signals, does not need to set parameters, has high response speed and accurate control pressure by an internal control algorithm, is convenient to install and is suitable for being installed in a narrow and complex industrial environment due to integrated design.
In order to achieve the above purpose, the invention provides a thin proportional valve, which comprises an air inlet block, a sensor plate, a connecting block, a main board, a shell, a display panel, an air inlet electromagnetic valve and an air outlet electromagnetic valve, wherein the air inlet block is arranged on the shell, the sensor plate is arranged on the air inlet block, the main board is arranged inside the shell and is connected with the air inlet block through the connecting block, the main board is in signal connection with the sensor plate, the display panel is arranged on the shell, and the air inlet electromagnetic valve and the air outlet electromagnetic valve are both connected with the main board.
Preferably, the device 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 plate, the air inlet sealing gasket is arranged between the sensor plate and the connecting block, and the main board sealing gasket is arranged between the connecting block and the main board.
Preferably, the air inlet device further comprises a connecting block fixing screw, a main board 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 main board is arranged inside the shell through the main board fixing screw, and the shell is fixedly connected with the air inlet block through the shell fixing screw.
Preferably, the air inlet block 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 outer part 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, 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.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure, comprises an air inlet block, a sensor plate, a connecting block, a main plate, a shell, a display panel, an air inlet electromagnetic valve and an air outlet electromagnetic valve, wherein the air inlet block is arranged on the shell, the sensor plate is arranged on the air inlet block, the main plate is arranged in the shell and is connected with the air inlet block through the connecting block, the main plate is in signal connection with the sensor plate, the display panel is arranged on the shell, the air inlet electromagnetic valve and the air outlet electromagnetic valve are both connected with the main plate, thereby effectively improving the control precision, being capable of achieving the control precision of 0.1kPa level, having low power consumption, long service life and stable temperature coefficient, being convenient for a client to access equipment to use, needing no parameter setting, being accurate in control pressure by an internal control algorithm, having high response speed, adopting integrated design and convenient installation, and being suitable for being installed in a narrow and complex industrial environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a thin proportional valve according to the present invention;
FIG. 2 is a schematic diagram of an exploded construction of a thin proportional valve according to the present invention;
FIG. 3 is a schematic diagram of a main plate of a thin proportional valve provided by the present invention;
FIG. 4 is a schematic diagram of the operation of a thin proportional valve according to the present invention;
fig. 5 is a schematic circuit diagram of a signal acquisition circuit of a thin proportional valve according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a thin proportional valve, which includes an air inlet block 1, a sensor board 2, a connection block 3, a main board 4, a housing 5, a display panel 6, an air inlet electromagnetic valve 7 and an air outlet electromagnetic valve 8, wherein the air inlet block 1 is mounted on the housing 5, the sensor board 2 is mounted on the air inlet block 1, the main board 4 is mounted inside the housing 5 and is connected with the air inlet block 1 through the connection block 3, the main board 4 is in signal connection with the sensor board 2, the display panel 6 is mounted on the housing 5, and the air inlet electromagnetic valve and the air outlet electromagnetic valve are connected with the main board 4, and the embodiment will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the air inlet block 1 is mounted on the housing 5, the sensor board 2 is mounted on the air inlet block 1, the main board 4 is mounted inside the housing 5 and connected with the air inlet block 1 through the connecting block 3, the main board 4 is connected with the sensor board 2 through signals, the display panel 6 is mounted on the housing 5, the air inlet electromagnetic valve and the air outlet electromagnetic valve are connected with the main board 4, the control precision is effectively improved by adopting a PID control algorithm, the control precision of 0.1kPa level can be achieved, the power consumption is low, the service life is long, the temperature coefficient is stable, the standard industrial control signal is convenient for a client to access the device, the parameters are not required to be set, the internal control algorithm is accurate to control the pressure, the response speed is high, and meanwhile, the integrated design and the installation are convenient, and the integrated air inlet electromagnetic valve is suitable for being mounted in a narrow and complex industrial environment.
The air inlet sealing gasket 10 is arranged between the sensor plate 2 and the connecting block 3, and the main board sealing gasket 11 is arranged between the connecting block 3 and the main board 4.
Wherein, still include connecting block set screw 12, mainboard set screw 13 and shell set screw 14, connecting block 3 installs on air inlet block 1 through connecting block set screw 12, and inside shell 5 was installed through main board set screw 13 to mainboard 4, shell 5 passed through shell set screw 14 and air inlet block 1 fixed connection.
Preferably, the air intake valve further comprises a first clamping rail elastic steel wire 7 and a second clamping rail elastic steel wire 8, wherein the first clamping rail elastic steel wire 7 and the second clamping rail elastic steel wire 8 are respectively arranged at the upper end and the lower end of the outer part of the air intake block 1, and the proportional valve is integrally installed in parallel through the integrated design of the first clamping rail elastic steel wire 7 and the second clamping rail elastic steel wire 8, so that the air intake valve is suitable for being installed in a narrow and complex 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 an electromagnetic valve driving module, the control unit module is connected with the signal input module, the signal feedback acquisition module and the electromagnetic valve driving module, and the electromagnetic valve driving module is connected with an air inlet electromagnetic valve and an air outlet electromagnetic valve.
Wherein, the mainboard possesses following functional design:
reverse connection preventing function: through circuit hardware design, connect diode D1 in the circuit, make the circuit have the power prevent reverse connection and output signal reverse connection function, after the power reverse connection, diode D1 protects whole circuit device, when circuit output short circuit or overload, whether the signal change on the sampling resistance obtains the signal that is short circuit or overload, MCU main chip output protection signal, disconnection output signal.
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, so that the power supply is automatically disconnected by overpressure, and the subsequent circuit is protected.
Analog output function: and obtaining a feedback signal through the output pressure value, and acquiring the feedback signal by the singlechip to output a corresponding analog voltage or current signal to the control end upper computer, and feeding back whether the control requirement is finished.
LDO power supply design: the LDO linear voltage stabilizer is adopted, two stages of voltage stabilization are adopted, the first stage supplies power for the output of the operational amplifier, the electromagnetic valve and the switch, and the second stage supplies power for the output of the singlechip, the sampling conversion chip and the display, so that the overall power supply stability is good, and the output ripple is small.
As shown in fig. 5, which is a schematic circuit diagram of a signal acquisition circuit, a pin 3 of a sensor U5 is connected with a positive electrode of a power supply, pins 1 and 6 are connected with a negative electrode of the power supply, and variable voltage signals are output under the change of pressure, amplified by an operational amplifier, and analog voltages of 1 to 3V are output.
The size of the air path flow is controlled by utilizing the opening and closing length of the electromagnetic valve. When the control unit module works, the square wave with adjustable output pulse width controls the charge and discharge time of the capacitor C2 through the triode Q2, the charge and discharge time is compared with the voltage on the resistor R21 through the operational amplifier U3-A operational amplifier, and the output control signal controls the on or off of the triode Q10 through the resistor R28, so that the on or off time is controlled, the opening and closing time of the electromagnetic valve L2 is controlled, and the purpose of controlling the air path flow is achieved.
The time of the electromagnetic valve is determined by the difference between the input signal and the current pressure value, a jump signal on the resistor R21 is generated from the closing moment of the electromagnetic valve at the time point, and is output to the capacitor C9 through the operational amplifier U3-A, so that the triode Q12 and the triode Q3 are conducted, and the FB falling edge signal is sent to the control unit module to start timing.
In operation, when the input signal rises, the inlet solenoid valve is opened, part of the supply pressure is output to the gas output through the inlet solenoid valve, the output pressure is corrected by the sensor plate 2, the pressure is corrected by the control loop, if the output pressure is lower than the corresponding proportion of the input signal, the inlet solenoid valve is opened continuously, otherwise, the inlet solenoid valve is closed, the exhaust solenoid valve is opened until the output pressure is proportional to the input signal, so that the output pressure is proportional to the input signal, and the range is between 0.0001 and 0.1 MPa.
In summary, the invention has simple structure, including the air inlet block 1, the sensor board 2, the connecting block 3, the main board 4, the shell 5, the display panel 6, the air inlet electromagnetic valve and the air outlet electromagnetic valve, the air inlet block 1 is installed on the shell 5, the sensor board 2 is installed on the air inlet block 1, the main board 4 is installed inside the shell 5 and is connected with the air inlet block 1 through the connecting block 3, the main board 4 is connected with the sensor board 2 through signals, the display panel 6 is installed on the shell 5, the air inlet electromagnetic valve and the air outlet electromagnetic valve are connected with the main board, the control precision is effectively improved, the control precision of 0.1kPa level can be achieved, the power consumption is low, the service life is long, the temperature coefficient is stable, the standard industrial control signal is convenient for the use of the client access equipment, the parameters are not required to be set, the internal control algorithm accurately controls the pressure, the response speed is high, meanwhile, the integrated design and the installation is convenient, and the invention is suitable for being installed in narrow and complex 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 that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (2)
1. A thin proportional valve, characterized in that: the intelligent air inlet device comprises an air inlet block (1), a sensor plate (2), a connecting block (3), a main board (4), a shell (5), a display panel (6), an air inlet electromagnetic valve and an air outlet electromagnetic valve, wherein the air inlet block (1) is arranged on the shell (5), the sensor plate (2) is arranged on the air inlet block (1), the main board (4) is arranged inside the shell (5) and is connected with the air inlet block (1) through the connecting block (3), the main board (4) is in signal connection with the sensor plate (2), the display panel (6) is arranged on the shell (5), and the air inlet electromagnetic valve and the air outlet electromagnetic valve are connected with the main board (4);
the air inlet sealing device is characterized by further comprising an O-shaped sealing ring (9), an air inlet sealing gasket (10) and a main board sealing gasket (11), wherein the O-shaped sealing ring (9) is arranged between the air inlet block (1) and the sensor board (2), the air inlet sealing gasket (10) is arranged between the sensor board (2) and the connecting block (3), and the main board sealing gasket (11) is arranged between the connecting block (3) and the main board (4);
the air inlet device is characterized by further comprising a connecting block fixing screw (12), a main board fixing screw (13) and a shell fixing screw (14), wherein the connecting block (3) is arranged on the air inlet block (1) through the connecting block fixing screw (12), the main board (4) is arranged inside the shell (5) through the main board fixing screw (13), and the shell (5) is fixedly connected with the air inlet block (1) through the shell fixing screw (14);
the novel air intake device further comprises a first clamping rail elastic steel wire (7) and a second clamping rail elastic steel wire (8), wherein the first clamping rail elastic steel wire (7) and the second clamping rail elastic steel wire (8) are respectively arranged at the upper end and the lower end of the outer part of the air intake block (1).
2. A thin proportional valve as claimed 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 |
|---|---|---|---|
| CN201910061312.6A CN109630492B (en) | 2019-01-23 | 2019-01-23 | Thin proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061312.6A CN109630492B (en) | 2019-01-23 | 2019-01-23 | Thin proportional valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630492A CN109630492A (en) | 2019-04-16 |
| CN109630492B true CN109630492B (en) | 2023-12-05 |
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ID=66063174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910061312.6A Active CN109630492B (en) | 2019-01-23 | 2019-01-23 | Thin proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630492B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111538358A (en) * | 2020-05-12 | 2020-08-14 | 行益科技(宁波)有限公司 | Thin type precision voltage regulating system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4112656A1 (en) * | 1990-04-23 | 1991-10-24 | Mueller Weingarten Maschf | Drawing device for press - has pressure face, charged by different forces during drawing |
| EP1586777A1 (en) * | 2004-04-16 | 2005-10-19 | FESTO AG & Co | Kit for proportional valve and valve assembled therewith |
| CN201636418U (en) * | 2010-02-25 | 2010-11-17 | 杭州强邦精密机械电器有限公司 | Gas proportional valve with compact structure |
| CN203114768U (en) * | 2013-03-20 | 2013-08-07 | 锦州市力特缸泵阀液压制造有限公司 | Composite electric proportional valve |
| CN204476901U (en) * | 2015-01-05 | 2015-07-15 | 北京航天动力研究所 | Harbour machinery hydraulic system |
| CN204828107U (en) * | 2015-07-16 | 2015-12-02 | 浙江师范大学 | High accuracy electro -hydraulic proportional valve |
| CN207740266U (en) * | 2018-01-12 | 2018-08-17 | 广东诺能泰自动化技术有限公司 | Segmented finely tunes proportioning valve |
| CN209925321U (en) * | 2019-01-23 | 2020-01-10 | 广东诺能泰自动化技术有限公司 | Thin type proportional valve |
-
2019
- 2019-01-23 CN CN201910061312.6A patent/CN109630492B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4112656A1 (en) * | 1990-04-23 | 1991-10-24 | Mueller Weingarten Maschf | Drawing device for press - has pressure face, charged by different forces during drawing |
| EP1586777A1 (en) * | 2004-04-16 | 2005-10-19 | FESTO AG & Co | Kit for proportional valve and valve assembled therewith |
| CN201636418U (en) * | 2010-02-25 | 2010-11-17 | 杭州强邦精密机械电器有限公司 | Gas proportional valve with compact structure |
| CN203114768U (en) * | 2013-03-20 | 2013-08-07 | 锦州市力特缸泵阀液压制造有限公司 | Composite electric proportional valve |
| CN204476901U (en) * | 2015-01-05 | 2015-07-15 | 北京航天动力研究所 | Harbour machinery hydraulic system |
| CN204828107U (en) * | 2015-07-16 | 2015-12-02 | 浙江师范大学 | High accuracy electro -hydraulic proportional valve |
| CN207740266U (en) * | 2018-01-12 | 2018-08-17 | 广东诺能泰自动化技术有限公司 | Segmented finely tunes proportioning valve |
| CN209925321U (en) * | 2019-01-23 | 2020-01-10 | 广东诺能泰自动化技术有限公司 | Thin type proportional valve |
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| Publication number | Publication date |
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| CN109630492A (en) | 2019-04-16 |
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