CN208024652U - Pneumatic control device with flexible feeding function - Google Patents
Pneumatic control device with flexible feeding function Download PDFInfo
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- CN208024652U CN208024652U CN201820179295.7U CN201820179295U CN208024652U CN 208024652 U CN208024652 U CN 208024652U CN 201820179295 U CN201820179295 U CN 201820179295U CN 208024652 U CN208024652 U CN 208024652U
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- solenoid valve
- air
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- rollback
- gas
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Abstract
The utility model discloses a pneumatic control device with flexible feeding function, which comprises a gas circuit pipeline, a pneumatic control device, an electric control device and a throttling speed regulator; the pneumatic control device receives a power air source through an air pipeline to push a pneumatic piston in the pneumatic actuating mechanism to move, and the electric control device receives an electric signal of the position detection magnetic switch to further control the action of the electromagnetic valve and conduct the throttling speed regulator. The pneumatic actuator has the advantages that the fluid channel is in a cone streamline shape, pressure drop loss is small, flow characteristics are accurate, the pneumatic actuator of the pneumatic actuator is fast forwarded to a working initial position and then switched to a state of keeping small thrust, the working thrust of the pneumatic actuator is smoothly adjusted in a stepless mode, the actuator can be tightly attached to a target due to the accurate flow control characteristics, the target cannot be impacted, and the pneumatic actuator can be fast retracted to an original position until the actuator works according to process requirements.
Description
Technical field
The utility model is related to a kind of air control units；More particularly to one kind in automatic control system and mechanical processing
Industry using air source as power, and with flexible feeding function the energy transmit control device.
Background technology
Pneumatic Control Technology is an important branch of current industrial automation, since Pneumatic Control Technology is to press
Contracting air is medium, and using air source as the energy Transfer Technology of power, manufacturing cost is cheap, functional reliability is high, service life
Length, there are no pollution to the environment, so being widely used in automatic control system and mechanical processing industry.But due to gas medium
Compressibility so that the rigidity of system entirety is difficult control, and present during entire control it is serious non-linear, these
Feature all makes Pneumatic Control Technology in accurate position control aspect be difficult to receive well-content effect, especially pneumatically holds
Row mechanism is difficult to realize in the capture-process to target to the fast approaching of target feed function at a slow speed, in existing pneumatic control
In technology processed, the pressure for either adjusting medium still adjusts the flow velocity of medium, cannot establish accurate Position And Velocity
Mathematical model so that the curve movement of pneumatic actuator generates rank dotted state, and especially this Traditional control theory necessarily increases
The control unit of adding system or equipment causes complicated Control system architecture, maintenance difficult, the manufacturing cost of entirety high, and adjusts
Whole precision has significant limitation, these control missings have fully been proved in actual application.
Invention content
Cheap, simple and compact for structure, operation that technical problem to be solved by the utility model is to provide a kind of manufacturing costs
It is stable, easy for installation, be active in one's movements, the energy of light-weight flexible feeding function transmit control device.
The utility model the technical scheme adopted is that a kind of air control unit with flexible feeding function, including,
Gas circuit pipeline, air control unit, electrical control gear and throttling governor；The air control unit is connect by gas circuit pipeline
Receiving power gas source pushes the air rammer in pneumatic actuator to move, and the electrical control gear receives position detection magnetic and opens
The electric signal and then control electromagnetism valve events of pass, and throttling governor is connected.
The air control unit includes total air source, is fixedly mounted on solenoid valve away from controlled device closer location and pneumatic
Executing agency connects with controlled device and is mounted on by air rammer that air chamber sealing is isolated, by magnetic switch fixing bracket
Position detection magnetic switch on pneumatic actuator, each gas circuit pipeline being connect with solenoid valve, throttling governor and solenoid valve
In exhaust outlet be fixedly connected；The control signal of the position detection magnetic switch is sent into electrical by position signal feedback cable
Control device, electrical control gear complete the action control to live solenoid valve.
The solenoid valve includes advance solenoid valve, work into solenoid valve and rollback solenoid valve；Gas chamber includes preceding inlet plenum and returns
Move back gas chamber；The gas circuit pipeline includes preceding air inlet path, rollback gas circuit, work gas circuit and work air inlet path；The work gas circuit difference
Access the air source input interface of advance solenoid valve and rollback solenoid valve, the exhaust outlet of rollback solenoid valve by work air inlet path and work into
The working hole of solenoid valve connects, and preceding air inlet path connects by the working hole of advance solenoid valve and the preceding inlet plenum of pneumatic actuator
Connect, rollback gas circuit is connect by the working hole of rollback solenoid valve with pneumatic actuator rollback gas chamber, the throttling governor and
The exhaust outlet of work into solenoid valve is fixedly connected in the form of pipe screw thread.
The throttling governor includes throttling governor cavity, and the throttling governor cavity is by trapping wall by cavity
It is divided into inlet chamber and discharge chamber, trapping wall centre position is formed with gas discharge orifice, flow-rate adjustment lead screw and throttling governor chamber
Body connects, and is equipped with flow-rate adjustment locking nut between flow-rate adjustment lead screw and throttling governor cavity, flow-rate adjustment spring and
Flow-rate adjustment ball is sequentially arranged in the cavity of flow-rate adjustment screw mandrel top.
It is formed with gap between the gas discharge orifice and the end face of flow-rate adjustment ball；The throttling governor cavity
Inner peripheral surface is formed with exhaust level.
The utility model has the beneficial effects that fluid channel is in that cone is streamlined, droop loss is small, discharge characteristic is accurate,
The action of the device pneumatic actuator is to be fast-forward to work starting position, then switches to holding compared with low thrust state, work
Make the size of thrust as no rank point smooth adjustment, accurate metering characteristics allow executing agency to be close to target, without
Make target by impact force, is finished until executing agency works by technological requirement, fast fallback to home position.
Description of the drawings
Fig. 1 the utility model throttling governor schematic diagrames；
Fig. 2 the utility model pneumatic control functional block diagrams.
In figure：
1 gas discharge orifice, 2 flow-rate adjustment ball, 3 exhaust level
4 flow-rate adjustment spring, 5 throttling governor cavity, 6 flow-rate adjustment locking nut
7 flow-rate adjustment lead screw, 8 discharge chamber, 9 inlet chamber
Air inlet path before 10 trapping wall, 11 position signal feedback cable 12
13 advance solenoid valve, 14 work air inlet path, 15 work is into solenoid valve
16 17 electrical control gear of work gas circuit, 18 magnetic switch securing bracket
19 position detection magnetic switch, 20 rollback gas circuit
21 pneumatic actuator, 22 rollback solenoid valve, 23 air rammer
Inlet plenum before 24 total air source, 25 throttling governor 26
27 rollback gas chambers.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As depicted in figs. 1 and 2, the utility model has the air control unit of flexible feeding function, including, gas circuit pipe
Line, air control unit, electric control system and throttling governor；The air control unit receives power by gas circuit pipeline
Air source pushes the air rammer movement in pneumatic actuator, the electric control system to receive the electricity of position detection magnetic switch
Signal and then control electromagnetism valve events, and throttling governor is connected.
Air control unit with flexible feeding function, including advance solenoid valve 13, work into solenoid valve 15 and retract electric
Magnet valve 22 is fixedly mounted on the position closer away from controlled device, to ensure the reasonability of device gas circuit pipeline trend.Pneumatically hold
Row mechanism 21 is fixedly mounted on the corresponding position of controlled device ontology, and air rammer 23 is close by preceding inlet plenum 26 and rollback gas chamber 27
It insulates and uses universal connection, position detection magnetic switch 19 to be mounted on by magnetic switch fixing bracket 18 with controlled device from rear
On pneumatic actuator 21, installation site requires arbitrary selection according to control.Work gas circuit 16 is respectively connected to advance solenoid valve
13 and rollback solenoid valve 22 air source input interface, the exhaust outlet of rollback solenoid valve 22 is by work air inlet path 14 and work into solenoid valve
15 working hole connection, preceding air inlet path 12 connect by the working hole of advance solenoid valve 13 and the preceding inlet plenum of pneumatic actuator 21
It connects, rollback gas circuit 20 is connect by the working hole of rollback solenoid valve 22 with pneumatic actuator rollback gas chamber, throttling governor 25
It is fixedly mounted in the form of pipe screw thread with the exhaust outlet of work into solenoid valve 15.The control signal of position detection magnetic switch 19 passes through
Position signal feedback cable 11 is sent into electrical control gear 17, and electrical control gear 17 completes the action control to live solenoid valve
System.
Trapping wall 10 is set between the inlet chamber 9 and discharge chamber 8 of throttling governor, gas is equipped in 10 interposition of trapping wall
Discharge orifice 1, the form that flow-rate adjustment lead screw 7 is threadedly coupled are connect with throttling governor cavity 5, flow-rate adjustment lead screw 7 with
Flow-rate adjustment locking nut 6 is housed, flow-rate adjustment spring 4 and flow-rate adjustment ball 2 are installed successively between throttling governor cavity 5
In the cavity on 7 top of flow-rate adjustment lead screw；The inner peripheral surface of throttling governor cavity 5 is formed with exhaust level 3.Make gas discharge orifice
Certain gap is formed between 1 and the end face of flow-rate adjustment ball 2, the size of gap value is arbitrarily adjusted with job requirement.
The course of work of the utility model is illustrated below；
As depicted in figs. 1 and 2, be widely used in automatic control system and mechanical processing industry using air source as power, and
And the energy with flexible feeding function transmits control device.Its total air source by gas circuit pipeline be respectively fed to advance solenoid valve and
The air inlet of rollback solenoid valve, advance solenoid valve obtains electric opening after electrical control gear sends out instruction, and total air source is by preceding at this time
Into solenoid valve working hole by preceding air inlet path be sent into pneumatic actuator preceding inlet plenum so that pneumatic actuator it is pneumatic
Piston fast forwards through work starting position.When air rammer quickly moves forward, pneumatic actuator rollback gas is indoor
Air is sent into rollback solenoid valve by rollback gas circuit, and is sent into work into solenoid valve along work air inlet path by the exhaust outlet of rollback solenoid valve
Air inlet, be zero since the work of stationary state communicates its pressure difference with working hole into electromagnetic valve air inlet so that the gas is quick
It discharges into the atmosphere.When air rammer moves to position detection magnetic switch soon, air rammer is produced with position detection magnetic switch
Magnetisation electric induction simultaneously generates electric signal, this signal is sent into after electrical control gear and sends out control instruction into solenoid valve to work, work into
Its air inlet ends with working hole and is connected with throttling governor while shutdown after solenoid valve energized action, pneumatically executes machine at this time
The indoor air of structure rollback gas initially enters the inlet chamber of throttling governor, enters exhaust by the gas discharge orifice on trapping wall
Intracavitary is discharged into the atmosphere by exhaust level.In order to ensure that air rammer keeps compared with low thrust state, flow-rate adjustment tracking target
After lead screw 7 is so that flow-rate adjustment ball and gas discharge orifice form certain interval, by flow-rate adjustment locking nut by flow tune
It saves lead screw to lock with throttling governor cavity, the flow velocity of exhaust gas is controlled by the size of its gap value, and then ensure that pneumatic
The feed speed of piston, advance solenoid valve and work are quiet into solenoid valve power interruption recovering under the action of control device after the completion of work
Only state, rollback solenoid valve obtain electric opening, and air source is sent into pneumatic execution machine by the working hole of rollback solenoid valve by rollback gas circuit
The air rammer of structure rollback gas chamber, pneumatic actuator retreats to home position soon along rollback direction.
It is worth noting that the scope of protection of the utility model is not limited to above-mentioned specific example mode, according to this reality
Conceived with novel basic fundamental, it is also possible to which the purpose of this utility model may be implemented in basically same structure, as long as this field
Those of ordinary skill needs not move through creative work, you can the embodiment associated belongs to the protection model of the utility model
It encloses.
Claims (5)
1. a kind of air control unit with flexible feeding function, which is characterized in that including gas circuit pipeline, pneumatic control dress
It sets, electrical control gear and throttling governor；The air control unit receives power gas source by gas circuit pipeline and pushes pneumatically
Air rammer movement in executing agency, the electrical control gear receive the electric signal of position detection magnetic switch and then control
Electromagnetism valve events, and throttling governor is connected.
2. the air control unit according to claim 1 with flexible feeding function, which is characterized in that the pneumatic control
Device processed includes total air source（24）, it is fixedly mounted on solenoid valve and pneumatic actuator away from controlled device closer location（21）,
The air rammer for being connected with controlled device and air chamber sealing being isolated（23）, pass through magnetic switch fixing bracket（18）Mounted on gas
Position detection magnetic switch in dynamic executing agency（19）, each gas circuit pipeline for connecting with solenoid valve, throttling governor（25）With
Exhaust outlet in solenoid valve is fixedly connected；The position detection magnetic switch（19）Control signal pass through position signal feedback electricity
Cable（11）It is sent into electrical control gear（17）, electrical control gear（17）Complete the action control to live solenoid valve.
3. the air control unit according to claim 2 with flexible feeding function, which is characterized in that the solenoid valve
Including advance solenoid valve（13）, work is into solenoid valve（15）With rollback solenoid valve（22）；Gas chamber includes preceding inlet plenum（26）And rollback
Gas chamber（27）；The gas circuit pipeline includes preceding air inlet path（12）, rollback gas circuit（20）, work gas circuit（16）With work air inlet path
（14）；The work gas circuit（16）It is respectively connected to advance solenoid valve（13）With rollback solenoid valve（22）Air source input interface, return
Move back solenoid valve（22）Exhaust outlet pass through work air inlet path（14）With work into solenoid valve（15）Working hole connection, preceding air inlet path（12）
By advance solenoid valve（13）Working hole and pneumatic actuator（21）Preceding inlet plenum（26）Connection, rollback gas circuit（20）Through
Cross rollback solenoid valve（22）Working hole and pneumatic actuator rollback gas chamber（27）Connection, the throttling governor（25）With work
Exhaust outlet into solenoid valve is fixedly connected in the form of pipe screw thread.
4. the air control unit according to claim 2 with flexible feeding function, which is characterized in that the throttling is adjusted
Fast device includes throttling governor cavity（5）, the throttling governor cavity（5）Pass through trapping wall（10）Cavity is divided into air inlet
Chamber（9）And discharge chamber（8）, trapping wall（10）Centre position is formed with gas discharge orifice（1）, flow-rate adjustment lead screw（7）With throttling
Governor cavity（5）Connection, flow-rate adjustment lead screw（7）With throttling governor cavity（5）Between flow-rate adjustment locking screw is installed
It is female（6）, flow-rate adjustment spring（4）With flow-rate adjustment ball（2）It is sequentially arranged at flow-rate adjustment lead screw（7）In the cavity on top.
5. the air control unit according to claim 4 with flexible feeding function, which is characterized in that the gas is let out
Discharge orifice（1）With flow-rate adjustment ball（2）End face between be formed with gap；The throttling governor cavity（5）Inner peripheral surface shape
At there is exhaust level（3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179295.7U CN208024652U (en) | 2018-02-01 | 2018-02-01 | Pneumatic control device with flexible feeding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179295.7U CN208024652U (en) | 2018-02-01 | 2018-02-01 | Pneumatic control device with flexible feeding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024652U true CN208024652U (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820179295.7U Active CN208024652U (en) | 2018-02-01 | 2018-02-01 | Pneumatic control device with flexible feeding function |
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| Country | Link |
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| CN (1) | CN208024652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115923322A (en) * | 2023-01-09 | 2023-04-07 | 吕俊友 | Scraper pressure control system |
-
2018
- 2018-02-01 CN CN201820179295.7U patent/CN208024652U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115923322A (en) * | 2023-01-09 | 2023-04-07 | 吕俊友 | Scraper pressure control system |
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