High-efficiency linkage type integrated large-flow vacuum generator

Abstract

The application discloses a high-efficiency linkage type integrated large-flow vacuum generator and relates to the technical field of pneumatic vacuum generator control valves.The high-efficiency linkage type integrated large-flow vacuum generator comprises a control valve body, a digital pressure switch is fixedly connected to the left side of the control valve body, a vacuum breaking throttle needle valve is fixedly installed in the control valve body, a gas supply port is formed in one end of the top of the control valve body, a main gas path is fixedly connected to the bottom of the gas supply port, and a generator main valve body is fixedly connected to the right side of the control valve body.The linkage type integrated multi-stage vacuum generator is used, the gas supply valve is powered on for more than 20 ms, after power-off, the gas supply valve is not reset, the vacuum generator can keep the state of suction, until the vacuum breaking valve is powered on, the gas supply valve is reset and closed, and the vacuum stops, at the same time, the vacuum breaking valve blows air, and the workpiece is quickly separated, so that in the case of sudden power-off, as long as there is compressed air in the gas storage tank, the sucked workpiece will not suddenly fall.

Description

Technical Field

[0001] This invention relates to the field of pneumatic vacuum generator control valve technology, specifically to a high-efficiency, linkage-type integrated high-flow vacuum generator. Background Technology

[0002] Currently, the pneumatic components used for vacuum gripping are mainly cylinders and vacuum suction cups. The principle is to use vacuum negative pressure to adsorb products, thereby achieving the purpose of picking up the products. When the air supply valve is stopped, the adsorption effect stops directly (no vacuum negative pressure is generated). This invention discloses a pneumatic integrated high-flow-rate vacuum generator that maintains adsorption even when the air supply valve is de-energized, and its principle.

[0003] Existing integrated multi-stage vacuum generators with high suction flow all rely on the gas supply valve to generate a vacuum when the gas supply valve is energized and the vacuum stops when the gas supply valve is de-energized. The vacuum is then broken by a vacuum breaking valve that blows air to break the vacuum. In the event of a sudden power outage during vacuum system operation, the workpiece will immediately fall off. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency, interconnected, integrated high-flow-rate vacuum generator to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A high-efficiency, interconnected, integrated high-flow vacuum generator includes a control valve body. A digital pressure switch is fixedly connected to the left side of the control valve body. A vacuum-breaking throttling needle valve is fixedly installed inside the control valve body. A vacuum-breaking air passage is fixedly connected to the bottom of the vacuum-breaking throttling needle valve. An air supply port is opened at one end of the top of the control valve body. A main air passage is fixedly connected to the bottom of the air supply port. The generator main valve body is fixedly connected to the right side of the control valve body.

[0007] A further improvement of the technical solution of the present invention is that a destructive solenoid valve is fixedly installed on the top left side of the control valve body, and a gas supply solenoid valve is fixedly installed on the bottom left side of the control valve body.

[0008] By employing the above technical solution, the linkage function is achieved by disrupting the interaction between the solenoid valve and the gas supply solenoid valve.

[0009] A further improvement of the technical solution of the present invention is that: a pilot switch for a destructive solenoid valve is fixedly installed inside the destructive solenoid valve, a de-energizing exhaust port for a destructive solenoid valve is fixedly connected to the top of the pilot switch for a destructive solenoid valve, and a pilot air passage for a destructive solenoid valve is fixedly connected to the bottom of the pilot switch for a destructive solenoid valve.

[0010] By employing the above technical solution, the function of connecting and controlling the valve is achieved through the coordinated actions of disrupting the pilot switch of the solenoid valve, disrupting the solenoid valve's de-energized exhaust port, and disrupting the solenoid pilot air path.

[0011] A further improvement of the technical solution of the present invention is that: a linkage air passage is provided on one side inside the control valve body, a breaker valve switch is fixedly connected to the bottom of the linkage air passage, a breaker valve reset spring is movably connected to the bottom of the breaker valve switch, and a breaker valve exhaust port is fixedly connected to the bottom of the breaker valve reset spring.

[0012] By adopting the above technical solution, the breaker valve switch and the breaker valve reset spring cooperate to achieve the function of energizing the switch and pushing it with the reset spring. After the power is cut off, the gas supply valve does not reset, and the vacuum generator can maintain the suction state.

[0013] A further improvement of the technical solution of the present invention is that: one end of the power-off exhaust port of the disruptive solenoid valve is connected to the atmosphere, and one end of the air guide path of the disruptive solenoid valve is connected to the main air path.

[0014] A further improvement of the technical solution of the present invention is that: a pilot switch for a gas supply solenoid valve is fixedly installed inside the gas supply solenoid valve, a gas supply solenoid valve guide path is fixedly connected to the top of the pilot switch for a gas supply solenoid valve, and a power-off exhaust port for a gas supply solenoid valve is provided at the bottom of the pilot switch for a gas supply solenoid valve.

[0015] By adopting the above technical solution, the function of controlling the adsorption by electricity is achieved through the cooperation of the pilot switch of the gas supply solenoid valve, the gas supply solenoid valve guide path, and the gas supply solenoid valve de-energized exhaust port.

[0016] A further improvement of the technical solution of the present invention is that: the other end of the air supply solenoid valve guide path is fixedly connected to an air supply valve switch, and the bottom of the air supply valve switch is fixedly connected to an air supply valve switch air path.

[0017] By adopting the above technical solution, the function of controlling gas supply and adsorption is achieved through the cooperation of the gas supply valve switch and the gas supply valve switch gas circuit.

[0018] A further improvement of the technical solution of the present invention is that: one end of the air guide path of the air supply solenoid valve is connected to the main air path, and one end of the de-energized exhaust port of the air supply solenoid valve is connected to the atmosphere.

[0019] A further improvement of the technical solution of the present invention is that: a vacuum chamber is provided at the top of the main valve body of the generator, a digital pressure switch vacuum circuit is fixedly connected to the left side of the bottom of the vacuum chamber, a two-stage diffuser is provided inside the vacuum chamber, a nozzle is fixedly connected to one end of the two-stage diffuser, a one-way valve is fixedly installed on the surface of the two-stage diffuser, and a three-stage diffuser is fixedly connected to the other end of the two-stage diffuser.

[0020] By adopting the above technical solution, the function of unidirectional gas connection is achieved through the cooperation of vacuum chamber, two-stage diffuser tube, one-way valve and three-stage diffuser tube.

[0021] A further improvement of the technical solution of the present invention is that: an exhaust pipe is fixedly installed at the right end of the main valve body of the generator, an exhaust chamber is opened inside the exhaust pipe, and a muffler is fixedly installed on the inner wall of the exhaust chamber.

[0022] By adopting the above technical solution, the exhaust pipe and muffler work together to achieve the function of noise reduction.

[0023] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0024] 1. This invention provides a high-efficiency linkage integrated high-flow vacuum generator. Through an integrated multi-stage vacuum generator with a suction flow of (200L / min-600L / min), the device integrates a control valve, a vacuum breaking valve, a vacuum breaking flow regulating needle valve, a vacuum pressure switch, and a silencer. The components are small in size and light in weight, with low air consumption and high suction power, thereby realizing the integration of the device and increasing the ease of use of the device.

[0025] 2. This invention provides a high-efficiency, interconnected, integrated high-flow vacuum generator. It integrates pneumatic components such as control valves, vacuum breaking valves, vacuum breaking flow regulating valves, vacuum pressure switches, and silencers, reducing space occupation and facilitating pipeline layout. Combined with the noise reduction effect of the silencer, it reduces equipment noise and facilitates convenient use of the equipment.

[0026] 3. This invention provides a high-efficiency, linkage-type integrated high-flow vacuum generator. Through the linkage-type integrated multi-stage vacuum generator, the gas supply valve is energized for more than 20ms. After the power is cut off, the gas supply valve does not reset, and the vacuum generator can maintain the suction state until the vacuum breaking valve is energized, the gas supply valve resets and closes, and the vacuum stops. At the same time, the vacuum breaking valve blows air, and the workpiece is quickly detached. This ensures that in the event of a sudden power failure, as long as there is compressed air in the gas storage tank, the sucked workpiece will not suddenly fall. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic cross-sectional view of the control valve body of the present invention;

[0029] Figure 3 This is a schematic diagram of the back structure of the generator main valve body of the present invention;

[0030] Figure 4 This is a top view of the main valve body of the generator of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the generator main valve body of the present invention.

[0032] In the diagram: 1. Digital pressure switch; 2. Control valve body; 3. Vacuum breaking throttling needle valve; 4. Air supply port; 5. Main air path; 6. Generator main valve body; 7. Check valve; 8. Vacuum chamber; 9. Exhaust chamber; 10. Silencer; 11. Destruction solenoid valve pilot switch; 12. Destruction solenoid valve; 13. Destruction valve switch; 14. Destruction valve return spring; 15. Air supply solenoid valve; 16. Air supply solenoid valve pilot switch; 17. Air supply valve switch; 18. Nozzle; 19. Secondary diffuser tube; 20. Tertiary diffuser tube; 21. Destruction vacuum path; 22. Linkage air path; 23. Destruction solenoid valve de-energized exhaust port; 24. Destruction solenoid valve guide air path; 25. Destruction valve exhaust port; 26. Air supply solenoid valve guide air path; 27. Air supply solenoid valve de-energized exhaust port; 28. Air supply valve switch air path; 29. ​​Digital pressure switch vacuum path. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to embodiments:

[0034] like Figure 1-5 As shown, the present invention provides the following technical solutions.

[0035] Example 1

[0036] This embodiment provides a high-efficiency, linkage-type integrated high-flow vacuum generator, including a control valve body 2. A digital pressure switch 1 is fixedly connected to the left side of the control valve body 2. A vacuum breaking throttling needle valve 3 is fixedly installed inside the control valve body 2. A vacuum breaking air passage 21 is fixedly connected to the bottom of the vacuum breaking throttling needle valve 3. An air supply port 4 is opened at one end of the top of the control valve body 2. A main air passage 5 is fixedly connected to the bottom of the air supply port 4. A generator main valve body 6 is fixedly connected to the right side of the control valve body 2. A breaker solenoid valve 12 is fixedly installed at the top of the left side of the control valve body 2. An air supply solenoid valve 15 is fixedly installed at the bottom of the left side of the control valve body 2. A breaker solenoid valve pilot switch 11 is fixedly installed inside the breaker solenoid valve 12. A breaker solenoid valve de-energized exhaust port 23 is fixedly connected to the top of the breaker solenoid valve pilot switch 11. A breaker solenoid valve guide passage 24 is fixedly connected to the bottom of the breaker solenoid valve pilot switch 11. A linkage air passage 22 is opened on one side inside the control valve body 2. A breaker solenoid valve guide passage 24 is fixedly connected to the bottom of the linkage air passage 22. Valve switch 13, with a movably connected bottom to a breaker valve return spring 14, and a fixedly connected bottom to a breaker valve exhaust port 25. One end of the breaker solenoid valve de-energized exhaust port 23 is connected to the atmosphere, and one end of the breaker solenoid valve air guide path 24 is connected to the main air path 5. Air is supplied through the air supply port 4, and the atmosphere enters the interior of the control valve body 2. The air supply solenoid valve 15 and the breaker solenoid valve 12 are linked. When the power is off, the product cannot be kept in a continuous state. When the air supply solenoid valve 15 is energized, the valve core opens. When the power is off, the valve core will not close automatically and will remain open until the breaker solenoid valve 12 is energized, the valve core of the supply valve is reset, the breaker solenoid valve pilot switch 11 closes the breaker solenoid valve air guide path 24, and at the same time, the vacuum valve opens to blow air. When the vacuum value inside the equipment reaches the set value, the vacuum switch will send an NPN or PNP signal to the programmable control equipment PLC, thereby realizing automation and facilitating convenient operation of the equipment.

[0037] Example 2

[0038] Based on Embodiment 1, this embodiment provides a technical solution: Preferably, a gas supply solenoid valve pilot switch 16 is fixedly installed inside the gas supply solenoid valve 15. A gas supply solenoid valve air guide path 26 is fixedly connected to the top of the gas supply solenoid valve pilot switch 16. A gas supply solenoid valve de-energization exhaust port 27 is provided at the bottom of the gas supply solenoid valve pilot switch 16. A gas supply valve switch 17 is fixedly connected to the other end of the gas supply solenoid valve air guide path 26. A gas supply valve switch air path 28 is fixedly connected to the bottom of the gas supply valve switch 17. One end of the gas supply solenoid valve air guide path 26... The main gas line 5 is connected to the gas supply solenoid valve. One end of the exhaust port 27 is connected to the atmosphere. A vacuum chamber 8 is opened at the top of the generator main valve body 6. A digital pressure switch vacuum line 29 is fixedly connected to the left side of the bottom of the vacuum chamber 8. A secondary diffuser tube 19 is set inside the vacuum chamber 8. A nozzle 18 is fixedly connected to one end of the secondary diffuser tube 19. A one-way valve 7 is fixedly installed on the surface of the secondary diffuser tube 19. A tertiary diffuser tube 20 is fixedly connected to the other end of the secondary diffuser tube 19. An exhaust port is fixedly installed at the right end of the generator main valve body 6. The exhaust pipe has an internal exhaust chamber 9, and a muffler 10 is fixedly installed on the inner wall of the exhaust chamber 9. Gas is supplied to the interior of the three-stage diffuser 20 through the gas supply valve switch 17, and then connected to the vacuum chamber 8 by the digital pressure switch vacuum circuit 29, allowing gas to enter the vacuum chamber 8. With the one-way action of the one-way valve 7, the gas is driven to flow unidirectionally within the two-stage diffuser 19 and the three-stage diffuser 20, and then discharged from the exhaust chamber 9. At the same time, the muffler 10 reduces noise generation, achieving a noise reduction function. In addition, a one-way valve 7 is added between the nozzle 18 and the secondary diffuser 19. After the compressed air in the internal air tank of the equipment is consumed, the one-way valve 7 isolates the vacuum chamber 8, the exhaust chamber 9 and the air supply chamber 5, so that the equipment can maintain a vacuum function. The vacuum inside the vacuum chamber 8 will not stop immediately. According to the internal volume, the internal vacuum gradually decreases, so that the internal vacuum state is maintained for several tens of minutes, thereby grabbing and adsorbing objects until the gas in the air tank flows in, thus facilitating the convenient use of the equipment.

[0039] The working principle of this high-efficiency, interconnected, integrated high-flow vacuum generator will be explained in detail below.

[0040] like Figure 1-5As shown, air is supplied through the air supply port 4, and atmospheric air enters the interior of the control valve body 2. The air supply solenoid valve 15 and the destructive solenoid valve 12 are linked. In the event of a power outage, the product cannot be held in place for an extended period. When the air supply solenoid valve 15 is energized, the valve core opens. When the power is cut off, the valve core does not automatically close but remains open until the destructive solenoid valve 12 is energized, resetting the valve core. The destructive solenoid valve pilot switch 11 closes the destructive solenoid valve guide air path 24, and simultaneously breaks the vacuum valve, opening the blowing air. Gas is then supplied to the interior of the three-stage diffuser tube 20 through the air supply valve switch 17. Then, the vacuum air path 29 of the digital pressure switch connects to the vacuum chamber 8, allowing air to enter the vacuum chamber 8. The check valve 7 connects the vacuum chamber 8, the exhaust chamber 9, and the air supply... The isolation of cavity 5 ensures a vacuum maintenance function inside the equipment. The vacuum inside vacuum cavity 8 does not stop immediately, thus maintaining a vacuum state for several tens of minutes. This drives the gas to flow unidirectionally inside the secondary diffuser tube 19 and the tertiary diffuser tube 20, and then it is discharged through exhaust cavity 9. At the same time, the silencer 10 is used to reduce noise generation, thus achieving a noise reduction function and facilitating the convenient use of the equipment. The gas supply valve is energized for more than 20ms. After the power is cut off, the gas supply valve does not reset, and the vacuum generator can maintain the suction state until the vacuum breaking valve is energized, the gas supply valve resets and closes, the vacuum stops, and at the same time, the vacuum breaking valve blows air, and the workpiece is quickly detached. This ensures that in the event of a sudden power failure, as long as there is compressed air in the gas storage tank, the sucked workpiece will not suddenly fall.

[0041] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-efficiency, linkage-type integrated high-flow-rate vacuum generator, comprising a control valve body (2), characterized in that: A digital pressure switch (1) is fixedly connected to the left side of the control valve body (2). A vacuum breaking throttling needle valve (3) is fixedly installed inside the control valve body (2). A vacuum breaking air passage (21) is fixedly connected to the bottom of the vacuum breaking throttling needle valve (3). An air supply port (4) is opened at one end of the top of the control valve body (2). A main air passage (5) is fixedly connected to the bottom of the air supply port (4). A generator main valve body (6) is fixedly connected to the right side of the control valve body (2). A destructive solenoid valve (12) is fixedly installed on the top left side of the control valve body (2), and a gas supply solenoid valve (15) is fixedly installed on the bottom left side of the control valve body (2). The solenoid valve (12) is fixedly installed with a solenoid valve pilot switch (11). The top of the solenoid valve pilot switch (11) is fixedly connected with a solenoid valve de-energizing exhaust port (23). The bottom of the solenoid valve pilot switch (11) is fixedly connected with a solenoid valve air guide (24). A linkage air passage (22) is provided on one side inside the control valve body (2). A breaker valve switch (13) is fixedly connected to the bottom of the linkage air passage (22). A breaker valve reset spring (14) is movably connected to the bottom of the breaker valve switch (13). A breaker valve exhaust port (25) is fixedly connected to the bottom of the breaker valve reset spring (14). One end of the de-energized exhaust port (23) of the destructive solenoid valve is connected to the atmosphere, and one end of the air guide path (24) of the destructive solenoid valve is connected to the main air path (5). The gas supply solenoid valve (15) has a gas supply solenoid valve pilot switch (16) fixedly installed inside. The top of the gas supply solenoid valve pilot switch (16) is fixedly connected to the gas supply solenoid valve guide passage (26). The bottom of the gas supply solenoid valve pilot switch (16) is provided with a gas supply solenoid valve de-energization exhaust port (27). The other end of the air supply solenoid valve guide path (26) is fixedly connected to the air supply valve switch (17), and the bottom of the air supply valve switch (17) is fixedly connected to the air supply valve switch air path (28).

2. The high-efficiency linkage-type integrated high-flow-rate vacuum generator according to claim 1, characterized in that: One end of the air supply solenoid valve guide passage (26) is connected to the main air passage (5), and one end of the air supply solenoid valve de-energized exhaust port (27) is connected to the atmosphere.

3. The high-efficiency linkage-type integrated high-flow-rate vacuum generator according to claim 1, characterized in that: The generator main valve body (6) has a vacuum chamber (8) at the top. A digital pressure switch vacuum circuit (29) is fixedly connected to the left side of the bottom of the vacuum chamber (8). A secondary diffuser tube (19) is provided inside the vacuum chamber (8). A nozzle (18) is fixedly connected to one end of the secondary diffuser tube (19). A one-way valve (7) is fixedly installed on the surface of the secondary diffuser tube (19). A tertiary diffuser tube (20) is fixedly connected to the other end of the secondary diffuser tube (19).

4. The high-efficiency linkage-type integrated high-flow-rate vacuum generator according to claim 1, characterized in that: An exhaust pipe is fixedly installed on the right end of the generator main valve body (6), and an exhaust chamber (9) is opened inside the exhaust pipe. A muffler (10) is fixedly installed on the inner wall of the exhaust chamber (9).

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