CN211950820U - Pressure controller - Google Patents
Pressure controller Download PDFInfo
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- CN211950820U CN211950820U CN201921821730.2U CN201921821730U CN211950820U CN 211950820 U CN211950820 U CN 211950820U CN 201921821730 U CN201921821730 U CN 201921821730U CN 211950820 U CN211950820 U CN 211950820U
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- control circuit
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- pressure sensor
- vacuum
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Abstract
The utility model discloses a pressure controller, including pressure sensor, control circuit, master control circuit and executive component, pressure sensor transmits the signal data who detects to master control circuit, and master control circuit makes and handles to form control command and transmits to control circuit, and control circuit utilizes control command to make executive component take place the action; the pressure sensor and the control circuit are both connected with the main control circuit, and the control circuit is connected with the execution element. The vacuum generator control system utilizes the pressure sensor to detect pressure data of a vacuum generating end in real time to form a control instruction, and controls the execution element according to the instruction, so that the vacuum generation or the vacuum stop of the automatic control vacuum generator is realized, and the integrated controller structure is realized, so that the controller is small in size, simple in structure line and convenient and fast in later-stage maintenance.
Description
Technical Field
The utility model belongs to the technical field of an automated control circuit technique and specifically relates to a pressure controller.
Background
The vacuum generator is used for generating negative pressure, and is required to be connected with a gas source switch (a mechanical switch or an electromagnetic valve) for convenient control, when the vacuum generator is opened, a gas source is introduced into the vacuum generator through a switch (the mechanical switch or the electromagnetic valve) gas source to generate negative pressure application, the vacuum generator works in cooperation with a sucker and the like in the use of industrial processing industry and manufacturing industry at present, and is particularly suitable for adsorbing fragile, soft and thin non-metallic materials or spherical objects in the operation processes of adsorption, transportation and the like of various materials; it is a major functional component of pipeline robot operation; the existing vacuum generator adopts a vacuum pump, the vacuum pump is connected with a controller to realize automatic control, but the controller is a control circuit designed around a relay, and the controller is provided with a control system (also called an input loop) and a controlled system (also called an output loop) and is installed in an electric control cabinet, however, the wire harnesses connected with each other are quite large, the connection is complex, the later maintenance is difficult, and the size of the controller is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical defects and designing a pressure controller which is small in volume, simple in structure circuit and capable of stopping or automatically controlling the vacuum generator.
The utility model relates to a pressure controller, including pressure sensor, control circuit, master control circuit and executive component, pressure sensor transmits the signal data who detects to master control circuit, and master control circuit makes and handles to form control command and transmits to control circuit, and control circuit utilizes received control command and takes place the action so that executive component takes place the action; the pressure sensor and the control circuit are both connected with the main control circuit, and the control circuit is connected with the execution element.
Preferably, the control circuit adopts a plurality of control switches, and the control switches are respectively connected with the main control circuit and the execution element.
More preferably, the control switch is further connected with a current sampling module. The current sampling module cuts off the executive component (electromagnetic valve) when the current is larger than the protection value, and the CPU main control module U4 controls the triode to cut off the executive component (electromagnetic valve).
Further preferably, the main control circuit adopts a CPU main control module; the CPU main control module processes data, makes judgment according to the data and sends out a control instruction according to the judgment.
Further preferably, the CPU main control module is connected to a reset circuit, a crystal oscillator circuit, and a filter circuit, respectively. The reset circuit realizes that the controller automatically resets to an initial state after being electrified and can also carry out manual reset operation; the crystal oscillation circuit enables the starting pulse frequency to be stable; and the filter circuit is used for filtering clutter in the signal mutual transmission process.
Further preferably, the intelligent control system further comprises a communication circuit connected with the main control circuit, and the communication circuit is used for carrying out mutual communication with signals of external equipment.
Further preferably, the communication circuit comprises a communication chip and an anti-interference module which are connected with each other, and the communication chip is connected with the main control circuit. The signals are prevented from being interfered during transmission. The communication chip adopts a bidirectional communication chip.
Further preferably, the communication device further comprises an overvoltage protection circuit connected to the communication chip; so as to prevent the communication circuit from being damaged due to overhigh power supply voltage.
Further preferably, the pressure controller is integrally installed in a box body, and the pressure sensor penetrates through the box body.
The utility model discloses a pressure controller, its pressure data that utilizes pressure sensor real-time detection to take place the end in vacuum form control command to control the execute component according to the instruction, take place or stop the vacuum emergence operation in order to realize automated control vacuum generator's vacuum, realize integrated form controller structure moreover, make the controller volume less, the structure circuit is simple, the convenient technological effect of later stage maintenance.
Drawings
FIG. 1 is an overall block diagram of embodiment 1;
FIG. 2 is a schematic diagram showing a circuit configuration of a combination of a control switch and a sampling module according to embodiment 1;
FIG. 3 is a schematic diagram of the circuit structure of the main control module of embodiment 1;
fig. 4 is a schematic diagram of a reset circuit configuration of embodiment 1;
FIG. 5 is a schematic diagram showing a crystal oscillator circuit according to embodiment 1;
FIG. 6 is a schematic diagram of a filter circuit configuration of embodiment 1;
FIG. 7 is a schematic diagram of a communication circuit configuration according to embodiment 1;
fig. 8 is a schematic diagram of an automatic control operation according to embodiment 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 8, the pressure controller described in this embodiment includes a pressure sensor 1, a control circuit 3, a main control circuit 2 and an execution element 4, the pressure sensor transmits detected signal data to the main control circuit, the main control circuit performs processing to form a control instruction and transmits the control instruction to the control circuit, and the control circuit uses the control instruction to enable the execution element to act; the pressure sensor and the control circuit are both connected with the main control circuit, and the control circuit is connected with the execution element; the actuating elements are a vacuum breaking valve and a vacuum valve on the vacuum generator, and the control circuit adopts two paths of control switches; the input ends of the two paths of control switches are connected with the main control circuit, and the output ends of the two paths of control switches are respectively connected with the air breaking valve and the vacuum valve; and the pressure sensor is installed at a vacuum generation port of the vacuum generator.
The two paths of control switches respectively adopt a triode Q1 and a triode Q2, and a main control circuit adopts a CPU main control module U4; the base electrode of the triode Q1 and the base electrode of the triode Q2 are respectively connected with a pin 29 and a pin 45 of the CPU main control module through a resistor R5 and a resistor R6, the collector electrode of the triode Q1 is used as an output end to be connected with the vacuum break valve, and the collector electrode of the triode Q2 is used as an output end to be connected with the vacuum valve; the emitter of the triode Q1 is connected with the pin 26 of the CPU main control module U4 through the resistor R7, and the emitter of the triode Q2 is connected with the pin 30 of the CPU main control module U4 through the resistor R8.
When the pressure data detected by the pressure sensor is transmitted to the CPU main control module for judgment and the detected value is judged to exceed a set value (P _1), the CPU main control module U4 sends a control instruction to open the vacuum breaking valve to promote the pressure at the vacuum generating end to rise and the negative pressure sucker releases the object; when the pressure sensor continuously detects the pressure of the vacuum generation port in real time and transmits the pressure to the CPU main control module for judgment, and the CPU main control module judges that the pressure is reduced to a hysteresis value (H _1) from a set value (P _1), the CPU main control module sends a control instruction to close the vacuum breaking valve, and the pressure sensor can be set to be P _1 when leaving a factory: -70kPa, H _ 1: 10 kPa.
Conditions for operating the vacuum valve: the CPU main control module sends out an adsorption instruction to enable the vacuum valve to act, then the vacuum generation end generates negative pressure, when pressure data detected by the pressure sensor is transmitted to the CPU main control module U4 for judgment, and a detection value is judged to exceed a set value (P _1), the CPU main control module sends out a control instruction to close the vacuum valve, and the negative pressure sucker finishes object adsorption; when the pressure sensor continuously detects the pressure of the vacuum generation port in real time and transmits the pressure to the CPU main control module U4 for judgment, and the CPU main control module judges that the pressure is reduced from a set value (P _1) to a hysteresis value (H _2), the CPU main control module U4 sends a control instruction to open the vacuum valve, and the vacuum valve can be set to be H _2 when leaving a factory: 5 kPa; meanwhile, the vacuum breaking valve and the vacuum valve both adopt electromagnetic valves.
According to the action conditions of the vacuum valve and the vacuum valve, the vacuum valve and the vacuum valve can be opened and closed repeatedly.
In this embodiment, the two control switches are further connected with a current sampling module. The current sampling module is respectively a sampling resistor R9 and a sampling resistor R10; one end of the sampling resistor R9 is connected with the pin 26 of the main control module and the emitter of the triode Q1 respectively, and the other end is grounded; one end of the sampling resistor R10 is connected to the pin 30 of the main control module and the emitter of the transistor Q2, respectively, and the other end is grounded.
In this embodiment, the CPU main control module is connected to a reset circuit, a crystal oscillator circuit, and a filter circuit, respectively. The resistor R1 and the capacitor C23 form a reset circuit; the capacitor C24, the capacitor C25 and the crystal oscillator tube Y1 form a crystal oscillator circuit; the capacitor C26, the capacitor C27, the capacitor C28, the capacitor C29, the capacitor C30, the resistor R2 and the resistor R23 form a filter circuit.
In this embodiment, the device further comprises a communication circuit connected with the main control circuit, wherein the communication circuit is used for carrying out mutual communication with signals of external equipment; the communication circuit comprises a communication chip U5 and an anti-interference module which are connected with each other, and the communication chip is connected with the main control circuit; the communication chip further comprises an overvoltage protection circuit which is connected to the communication chip. The communication circuit realizes bidirectional communication, and mainly comprises a CPU main control module U4, a UART3_ TX of a communication chip U5 sends data to external equipment, and receives external data through a USART3_ RX; the resistor R121, the resistor R122 and the resistor R123 form an anti-interference circuit; the bidirectional voltage stabilizing diode D6, the bidirectional voltage stabilizing diode D5 and the bidirectional voltage stabilizing diode D7 form an overvoltage protection circuit.
In the above, based on the data of the pressure sensor, when the CPU main control module determines that the pressure meets the set condition, the pin 29 and the pin 45 of the CPU main control module output control signals respectively, and the transistor Q1 and the transistor Q2 are used to control the two solenoid valves to operate, otherwise, the two solenoid valves do not operate, when the solenoid valve fails, the CPU main control module reads the current signal of the sampling resistor through the pin 26 and the pin 30, and when the current is greater than the set current, the CPU main control module automatically sends an instruction to the transistor Q1 and the transistor Q2, so that the transistor Q1 and the transistor Q2 are automatically disconnected, and the power supply to the solenoid valve is stopped; when the external device needs to communicate, data exchange can be performed through the communication circuit, and the pin 41 and the pin 42 of the CPU main control module are connected correspondingly.
Example 2:
in the pressure controller described in this embodiment, the pressure controller described in embodiment 1 is integrally installed in a box body, and the pressure sensor penetrates through the box body. The box body makes the controller be assembled on the vacuum generator more easily, and is also the effect of protecting the internal circuit.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (8)
1. A pressure controller is characterized by comprising a pressure sensor, a control circuit, a main control circuit and an execution element, wherein the pressure sensor transmits detected signal data to the main control circuit, the main control circuit processes the detected signal data to form a control command and transmits the control command to the control circuit, and the control circuit utilizes the received control command to act so as to enable the execution element to act; the pressure sensor and the control circuit are both connected with the main control circuit, and the control circuit is connected with the execution element.
2. The pressure controller according to claim 1, wherein the control circuit comprises a plurality of control switches, and the control switches are respectively connected with the main control circuit and the actuator.
3. The pressure controller of claim 2, wherein a current sampling module is further connected to the control switch.
4. The pressure controller of claim 1, wherein the master control circuit is a CPU master control module.
5. The pressure controller according to claim 4, wherein the CPU main control module is respectively connected with a reset circuit, a crystal oscillator circuit and a filter circuit.
6. The pressure controller according to any one of claims 1-5, further comprising a communication circuit connected to the main control circuit, the communication circuit being configured to communicate with an external device.
7. The pressure controller of claim 6, wherein the communication circuit comprises a communication chip and an anti-interference module connected with each other, and the communication chip is connected with the main control circuit.
8. The pressure controller of claim 7, further comprising an over-voltage protection circuit connected to the communication chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821730.2U CN211950820U (en) | 2019-10-28 | 2019-10-28 | Pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921821730.2U CN211950820U (en) | 2019-10-28 | 2019-10-28 | Pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211950820U true CN211950820U (en) | 2020-11-17 |
Family
ID=73167104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921821730.2U Active CN211950820U (en) | 2019-10-28 | 2019-10-28 | Pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211950820U (en) |
-
2019
- 2019-10-28 CN CN201921821730.2U patent/CN211950820U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure controller Effective date of registration: 20220322 Granted publication date: 20201117 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: Xingyi Technology (Ningbo) Co.,Ltd. Registration number: Y2022330000371 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |