CN111810710A - Energy-saving vacuum control valve - Google Patents

Abstract

An energy-saving vacuum control valve, the body of which is composed of a control module with an input port and a vacuum breaking adjusting knob, a vacuum control module with a vacuum adjusting knob and a throttle hole, a vacuum generating module with a vacuum generator, a digital display module and a vacuum filtering module with a suction inlet, wherein a first flow passage is arranged from the input port to the throttle hole, a second flow passage is arranged between the throttle hole and the vacuum generator and the vacuum adjusting knob, an air-controlled two-port two-position valve is arranged in the second flow passage, a third flow passage is communicated to the suction inlet by the vacuum adjusting knob and the vacuum generator, a check valve is arranged between the vacuum generator and the suction inlet, when the vacuum adjusting knob is opened upwards and is matched with the air-controlled two-port two-position valve and the check valve to be closed synchronously, the negative pressure from the third flow passage to the suction inlet can form a vacuum holding state, the vacuum breaking adjusting knob is also provided with a fourth flow passage communicated with the third flow passage, the check valve is opened by the positive pressure of the flow, and the vacuum state of the suction port can be broken.

Description

Energy-saving vacuum control valve

technical field

The invention relates to an energy-saving vacuum control valve, the body of which is composed of a plurality of modules with different functions, which can make the vacuum flow through an air-controlled two-port two-position valve and a check valve arranged inside in a vacuum state. The state can be maintained continuously, in addition to reducing air consumption and noise, it can also improve the efficiency of air circulation and achieve the purpose of energy saving.

Background technique

In the current development process of industrial automation, pneumatic vacuum technology has been widely used in various production lines. Please refer to FIG. 10. As shown in FIG. a suction port 93, and the internal structure is quite simple;

The working principle of the aforementioned vacuum generator 90 in the prior art is that after the compressed air is input from the air pressure source 91, the air is exhausted through the discharge port 92, and the suction port 93 generates vacuum adsorption by the entrainment effect. Therefore, the purpose of adsorbing the workpiece is achieved; if there is no compressed air to maintain the supply, the vacuum of the suction port 93 will be directly dissipated into the atmosphere, and the workpiece will also be directly dropped.

Therefore, from the above-mentioned shortcomings of the current vacuum generator 90, various problems in practical use can be understood. In view of this, the inventor of the present invention, through careful planning and design, will maintain the vacuum suction force and reduce the consumption of compressed air. The integration of reduced design features has redesigned an energy-efficient vacuum control valve to improve various problems with prior art structures.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide an energy-saving vacuum control valve that can maintain the vacuum state of its internal structure for a long time and reduce the flow rate input by the air pressure source when the suction port and the workpiece are adsorbed;

In order to achieve the above purpose, the present invention provides an energy-saving vacuum control valve, which includes: a main body consisting of a control module, a vacuum control module, a vacuum generation module, a digital display module, and a vacuum filter module in sequence. The module has an orifice capable of controlling the flow rate of the input air pressure source, and a vacuum adjustment button, and the vacuum generating module has a vacuum generator;

Wherein, there is a first flow channel connected from an input port of the control module to the throttle hole, and a second flow channel is set in the throttle hole and communicated between the vacuum generator and the vacuum adjustment knob There is an air-controlled two-port two-position valve in the second flow channel, and there is another third flow channel, which is communicated with the vacuum adjustment knob and the vacuum generator to a suction port of the vacuum filter module, and A check valve is arranged between the vacuum generator and the suction port. When the vacuum adjustment knob is opened upwards, the air-controlled two-port two-position valve and the check valve are synchronously closed to enable the third flow The negative pressure from the channel to the suction port forms a vacuum holding state, and the vacuum breaking adjustment knob is further provided with a fourth flow channel, the fourth flow channel is connected with the third flow channel, and the check valve is opened by the circulating positive pressure , thereby destroying the vacuum state of the suction port.

In another object of the present invention, the vacuum adjustment button further includes: an atmosphere channel port, which is arranged in the vacuum control module, and the atmosphere channel port is connected to the vacuum adjustment button.

Description of drawings

FIG. 1 is a perspective view of an energy-saving vacuum control valve according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view along the A-A direction of the energy-saving vacuum control valve in FIG. 1 in a ready state.

FIG. 3 is a schematic circuit diagram of the energy-saving vacuum control valve of FIG. 2 in a ready state.

FIG. 4 is a schematic cross-sectional view of the energy-saving vacuum control valve shown in FIG. 1 in the direction of A-A when the vacuum is generated.

FIG. 5 is a schematic circuit diagram of the vacuum generating state of the energy-saving vacuum control valve in FIG. 4 .

FIG. 6 is a schematic cross-sectional view along the A-A direction of the energy-saving vacuum control valve in the vacuum energy-saving state in FIG. 1 .

FIG. 7 is a schematic circuit diagram of the energy-saving vacuum control valve of FIG. 6 in a vacuum energy-saving state.

FIG. 8 is a schematic cross-sectional view along the B-B direction of the energy-saving vacuum control valve in FIG. 1 when the vacuum is broken.

FIG. 9 is a schematic diagram of the circuit of the energy-saving vacuum control valve in the state of vacuum failure in FIG. 8 .

FIG. 10 is a schematic diagram of the prior art.

Description of reference numbers:

10...Ontology

20...Control module

201...input port

21...Vacuum generating solenoid valve

22...Vacuum generating two-port two-position valve

23...Vacuum break solenoid valve

24...Vacuum break adjustment knob

30...Vacuum control module

31...Vacuum adjustment knob

32...Orifice

33...Pneumatic two-port two-position valve

40...Vacuum generation module

401... discharge port

41...Vacuum generator

411...Silencers

42...Check valve

50...Digital Display Module

51...Vacuum sensing switch

511...Vacuum signal

60...Vacuum filter module

601...Suction port

61...Vacuum filter

70...First runner

71...Second runner

711...Atmospheric port

72...Third runner

73...Fourth runner

80...Air pressure source

81...positive pressure

82...negative pressure

90...Vacuum generator

91...Air pressure source

92...discharge port

93...Suction port

Detailed ways

The following is based on the best feasible embodiment of the present invention, in conjunction with the drawings and detailed descriptions, in order to increase the understanding of the present invention;

First, please refer to FIGS. 1-2 , the present invention discloses an energy-saving vacuum control valve, the structure of which includes: a main body 10 , a control module 20 , a vacuum control module 30 , and a vacuum valve in sequence. The generating module 40, a digital display module 50, and a vacuum filter module 60 are connected to form;

The control module 20 has an input port 201 for inputting an air pressure source 80 , a vacuum generating solenoid valve 21 , a vacuum generating two-port two-position valve 22 , a vacuum breaking solenoid valve 23 , and a vacuum breaking adjustment knob 24 ; The vacuum control module 30 has a vacuum adjustment button 31, and an orifice 32, the vacuum generation module 40 has a vacuum generator 41, and the vacuum filter module 60 has a suction port 601;

3 , a first flow channel 70 is located where the input port 201 communicates with the throttle hole 32 ; and the throttle hole 32 communicates with the vacuum generator 41 and the vacuum adjustment knob 31 There is a second flow channel 71 in between, and the second flow channel 71 is further provided with an air-controlled two-port two-position valve 33; and the throttle hole 32 and the vacuum generator 41 are connected to the suction port A third channel 72 is provided at the position 601 , and a check valve 42 is provided between the vacuum generator 41 and the suction port 601 .

4 to 5, the air pressure source 80 input from the input port 201 is a positive pressure 81, and the vacuum generating solenoid valve 21 in the first flow channel 70 is linked to the vacuum generating two-port two-position valve 22. to the orifice 32, so as to control the flow rate of the positive pressure 81 entering the input port 201; and then the positive pressure 81 flows to the vacuum adjustment button 31 and the vacuum generator 41 through the second flow channel 71 respectively, and the vacuum adjustment There is also an atmospheric channel port 711 beside the button 31 to assist in discharging the air pressure source 80 with more input, and between the throttle hole 32 and the vacuum generator 41, there is also an air-controlled two-port two-position valve 33, The air-controlled two-port two-position valve 33 can be used to control the flow rate of the positive pressure 81 flowing to the vacuum generator 41, so that the positive pressure 81 flow rate of the discharge port 401 can also be controlled correspondingly, and the vacuum generator A muffler 411 is provided inside 41 , and the muffler 411 can reduce the sound volume generated by the positive pressure 81 passing through the discharge port 401 .

In the third flow channel 72 formed by the vacuum adjustment knob 31 and the vacuum generator 41 to the suction port 601, there is also a check valve 42. The check valve 42 is in an open state at this time. The suction port 601 from the third flow channel 72 is filled with negative pressure 82 , and the suction port 601 is in a state of vacuum generation and can be used for adsorbing objects.

6-7, when the vacuum sensing switch 51 in the digital display module 50 senses that the negative pressure 82 in the third channel 72 is fully loaded, a vacuum signal 511 is generated, and the vacuum signal 511 is The vacuum adjustment knob 31 will open upwards in conjunction with the external wire connection, and the positive pressure 81 of the second flow channel 71 will be controlled by the air-controlled two-port two-position valve 33 and the check valve. 42 restricts the flow to the third flow channel 72, so that the negative pressure 82 from the third flow channel 72 to the suction port 601 can form a vacuum holding state; if it is maintained for a long time, the negative pressure in the third flow channel 72 can be maintained. When the pressure 82 gradually dissipates, because the vacuum generating solenoid valve 21 is still activated continuously, it can immediately pass from the first flow channel 70 to the third flow channel 72 through the second flow channel 71, so that the vacuum holding state can be maintained continuously without The air pressure source 80 will be wasted and exhausted all the time, so as to achieve the purpose of saving energy.

Please refer to Figures 8 to 9 again. Following the aforementioned vacuum holding state, if vacuum breaking is required, after the vacuum generating solenoid valve 21 is closed, a fourth flow channel 73 is further provided at the position of the vacuum breaking adjustment button 24. The fourth flow channel 73 is connected to the third flow channel 72 , and the positive pressure 81 introduced by the vacuum breaking solenoid valve 23 can push the check valve 42 to open through the fourth flow channel 73 and the third flow channel 72 . to break the vacuum state of the suction port 601 .

To sum up, in the energy-saving vacuum control valve provided by the embodiment of the present invention, the spring force of the vacuum adjustment button 31 is connected with the pressure in the main body 10 through the several flow channels 70 , 71 , 72 , and 73 in the main body 10 . The opening and closing of the air-controlled two-port two-position valve 33 and the check valve 42 are linked together, so that the positive pressure 81 and the negative pressure 82 of the air pressure source 91 can correspond to different vacuum states, and the matching supply demand can be achieved. The time for generating the vacuum state and the consumption of the air pressure source 80 are reduced, so as to achieve the effect of energy saving.

The structure, features and effects of the present invention have been described in detail above according to the embodiments shown in the drawings. The above are only the preferred embodiments of the present invention, but the scope of the present invention is not limited by the drawings. Changes made to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, shall fall within the protection scope of the present invention as long as they do not exceed the spirit covered by the description and drawings.

Claims (2)

1. An energy efficient vacuum control valve comprising: the vacuum filtering device comprises a body, a vacuum control module, a vacuum generating module, a digital display module and a vacuum filtering module, wherein the control module is provided with an input port for inputting a pneumatic source, a vacuum generating electromagnetic valve, a vacuum generating two-port two-position valve, a vacuum destroying electromagnetic valve and a vacuum destroying adjusting button; the method is characterized in that: a first flow passage arranged at the input port and communicated with the throttling hole; the second flow passage is arranged between the throttling hole and the vacuum generator and communicated with the vacuum adjusting button, and an air-controlled two-port two-position valve is also arranged in the second flow passage; a third flow passage communicated to the suction inlet by the vacuum adjusting button and the vacuum generator, and a check valve is arranged between the vacuum generator and the suction inlet; when the vacuum adjusting button is opened upwards, the vacuum adjusting button is matched with the air-control type two-port two-position valve and the check valve to be closed synchronously, so that negative pressure from the third flow channel to the suction port forms a vacuum holding state, the vacuum destroying adjusting button is also provided with a fourth flow channel, the fourth flow channel is communicated with the third flow channel, the check valve is opened through flowing positive pressure, and the vacuum state of the suction port is destroyed.

2. The energy efficient vacuum control valve of claim 1, wherein the energy efficient vacuum control valve further comprises: and the atmosphere channel port is arranged in the vacuum control module and is communicated with the vacuum adjusting button.

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