CN114060601A - Thin energy-saving electric control vacuum generating and breaking valve - Google Patents

Abstract

The invention discloses a thin energy-saving electric control vacuum generating and destroying valve, which comprises: the valve seat is internally provided with a supply electromagnetic valve, a damage electromagnetic valve and a pressure detector which are all electrically connected with a control loop, and is also provided with an input port through which a supply air pressure source passes, an exhaust port, a suction port and a vacuum damage adjusting button.

Description

Thin energy-saving electric control vacuum generating and breaking valve

Technical Field

The invention relates to the field of electric control vacuum generators, in particular to a thin energy-saving electric control vacuum generating and breaking valve.

Background

In a vacuum generator used in general industry, an internal structure of a thin electrical control valve is usually designed to allow a vacuum-broken gas flow to pass through a vacuum-broken electromagnetic valve and then be adjusted according to a required flow, and in practical application, the gas flow is usually adjusted several times to achieve a better using state.

When the vacuum generator is broken in a vacuum state, the breaking gas flow is usually directly introduced into the original vacuum passage inside the suction inlet, and the gas flow is usually caused to flow back to the partially communicated passage, so that the structure causes the gas flow to be slightly unstable and the gas flow to be even and useless.

Disclosure of Invention

The invention aims to provide a thin energy-saving electric control vacuum generating and breaking valve, which has the main technical purpose that the vacuum pressure in a valve seat is measured by a pressure detector, the measured vacuum pressure is fed back to a control loop through information, and then the vacuum pressure is regulated by further driving a supply electromagnetic valve and a breaking electromagnetic valve through an air pressure regulating loop, so that the creation structure comprises the following steps: the valve seat is internally provided with a supply electromagnetic valve, a destruction electromagnetic valve and a pressure detector which are all electrically connected with a control loop, the valve seat is provided with an input port through which an air pressure source can pass, an exhaust port, a suction port and a vacuum destruction adjusting button, and the control loop is electrically connected with a digital display which is arranged on the outer surface of the valve seat and used for displaying the numerical value of the vacuum pressure in the valve seat; a first flow path connected to the supply solenoid valve and a vacuum generation two-port two-position valve through input ports, respectively, and further provided with a pressure regulating circuit connected to the destruction solenoid valve; a second flow path is communicated to the vacuum generation two-port two-position valve through the supply electromagnetic valve; a third flow path connected to the vacuum generator by a vacuum generating two-port two-position valve; a fourth flow path from the vacuum generator to the suction port via the vacuum holding check valve; a fifth flow path is connected to the vacuum destroying tube inside the suction inlet through a destroying solenoid valve, and the vacuum destroying adjusting button is matched with the air pressure adjusting loop to adjust the air pressure source, so that after the input flow is stored with the flow required by vacuum destroying in advance, the destroying solenoid valve can be directly conducted with the most appropriate flow to destroy the vacuum pressure of the sucked workpiece, further reduce the reverse flow generated by the vacuum destroying tube, and maintain the stable output of the vacuum destroying flow.

The second technical object is to maintain the vacuum state formed from the vacuum holding pipe to the suction port for a long time by opening and closing the vacuum holding check valve.

Again, the technical purpose is that the control loop further comprises: and the MCU microprocessor can be used for judging the magnitude of the pressure value transmitted by the pressure detector and controlling the opening and closing of the supply electromagnetic valve and the destruction electromagnetic valve so as to carry out the control purpose of vacuum maintenance or vacuum destruction.

Through the above purposes, the invention provides vacuum maintenance and destruction through each flow path in the valve seat, and then the control loop, the MCU microprocessor and the pressure detector are used for detecting and judging the size of the internal vacuum pressure, so as to drive the supply electromagnetic valve and the destruction electromagnetic valve to be opened and closed, thereby enabling the control technology of vacuum maintenance to be more sensitive.

Drawings

FIG. 1 is a schematic diagram of the present invention in a ready state.

FIG. 2 is a schematic diagram of the present invention in a vacuum generating state.

FIG. 3 is a schematic view of the present invention in a vacuum hold state.

FIG. 4 is a schematic view of the present invention in a vacuum broken state.

FIG. 5 is a block diagram illustrating the cooperation of control loops according to the present invention.

Description of reference numerals:

(10) .. valve seat

(101) .. input port

(102) .. discharge port

(1021) .. muffler

(103) .. suction inlet

(1031) .. vacuum breaking tube

(11) .. regulating button for vacuum breaking

(12) .. two-port two-position valve for vacuum generation

(13) .. vacuum generator

(14) .. vacuum holding check valve

(15) .. vacuum holding tube

(16) .. air pressure regulating loop

(20) .. supply solenoid valve

(30) .. breaking electromagnetic valve

(40) .. pressure detector

(50) .. control loop

(51) .. MCU microprocessor

(60) .. digital display

(P.) air pressure source

(A1) .. first flow path

(A2) .. second flow path

(A3) .. third flow path

(A4) .. fourth flow path

(A5) ... fifth flow path.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

The invention relates to a thin energy-saving electric control vacuum generating and destroying valve, which structurally comprises: a valve seat (10) provided with a supply solenoid valve (20), a destroy solenoid valve (30) and a pressure detector (40) inside, and all of them are electrically connected with a control loop (50), the valve seat (10) is further provided with an input port (101) for supplying a pressure source (P) to pass through, an exhaust port (102), an intake port (103) and a vacuum destroy adjusting knob (11), the control loop (50) is electrically connected with a digital display (60) arranged on the outer side surface of the valve seat (10) and can be used for displaying the value of the vacuum pressure inside the valve seat (10);

referring to FIG. 1, marked by dotted lines, there is a first flow path (A1) connected to the supply solenoid valve (20) and a vacuum generating two-port two-position valve (12) from the input port (101), and the first flow path (A1) is further provided with an air pressure regulating circuit (16) connected to the breaking solenoid valve (30); a second flow path (A2) connected by the supply solenoid valve (20) to a vacuum generating two-port two-position valve (12); a third flow path (A3) connected to a vacuum generator (12) by the vacuum generating two-port two-position valve (12); a fourth flow path (A4) for communicating the vacuum generator (13) with the vacuum holding pipe (15) to the suction port (103) through a vacuum holding check valve (14); a fifth flow path (A5) connected to a vacuum breaking pipe (1031) inside the suction port (103) by the breaking solenoid valve (31), and the vacuum breaking adjustment button (11) is used to cooperate with the air pressure adjustment circuit (16) to adjust the air pressure source (P), so that after the input flow is stored in advance to the flow required by vacuum breaking, the breaking solenoid valve (31) can be directly conducted to the most appropriate flow to break the vacuum pressure of the sucked workpiece, and further the reverse flow generated by the vacuum breaking pipe (1031) is reduced, and the stable output of the vacuum breaking flow is maintained.

Please refer to fig. 1, which is a state of preparation for vacuum generation, wherein the air pressure source (P) is closed after being input from the input port (101) to the first flow path (a1), and the suction port (103) is closed as well;

referring to fig. 2, in the vacuum generation state, after the air pressure source (P) of the first flow path (a1) is matched with the supply solenoid valve (20) and opened, the vacuum generation two-port two-position valve (12) is opened through the second flow path (a2), and after the third flow path (A3) is opened, the air pressure source (P) is exhausted to the outside of the valve seat (10) through the vacuum generator (13) via the silencer (1021), and the vacuum retaining check valve (14) is matched with the suction port (103) through the fourth flow path (a4) for the purpose of adsorbing the workpiece.

Referring to fig. 3, in the vacuum holding state, after the vacuum holding check valve (22) is closed in the vacuum generating state, the vacuum pressure can be maintained in the vacuum holding tube (15), so as to maintain the suction port (103) in the state of sucking the workpiece.

Referring to fig. 4, in the vacuum breaking state, in the vacuum generating and maintaining state, the vacuum breaking state of the original adsorbed workpiece is broken by the first flow path (a1) cooperating with the vacuum breaking adjustment key (11) and passing through an air pressure regulating circuit (16) to the breaking solenoid valve (30), and then passing through the vacuum breaking tube (1031) and entering the suction port (123) through the fifth flow path (a5).

Referring to fig. 5, which is a block diagram of a control loop (50) according to the present invention, the control loop (50) mainly performs menu operation via external buttons, and the main operation items include:

firstly, setting the upper and lower vacuum limits.

And secondly, the PLC is controlled and set externally, the PLC cannot set the upper limit and the lower limit of the vacuum, and after the user sets the PLC in the menu, the PLC can be opened and closed externally.

In the figure, firstly, a button is matched with LCD screen display to perform menu selection and control vacuum upper and lower limit setting, then vacuum upper and lower limit data are transmitted to an MCU (51) in a control loop (50), a supply electromagnetic valve (20) is used for increasing the vacuum pressure to the vacuum degree upper limit, and then the vacuum pressure is kept so as to adsorb a workpiece, and a pressure detector (40) is also used for matching with real-time feedback pressure to the MCU (51) to judge the vacuum pressure value to feed back and control the opening and closing of the supply electromagnetic valve (20) so as to keep the vacuum pressure in the vacuum upper and lower limit setting range, at the moment, the supply electromagnetic valve (20) and a vacuum generation two-port two-position valve (12) can be closed, the purposes of saving an air pressure source and saving electricity are achieved, and the damage electromagnetic valve (30) is used when the adsorbed workpiece is separated, and the part is not repeated;

in a whole, a control technology of vacuum maintenance can be achieved through the pressure detector (40) and the MCU microprocessor (51) through a newly added control loop (50). If the control of the upper and lower vacuum limits is not needed, the MCU can be directly closed through the menu, and a user can only issue an instruction to open and close the MCU microprocessor (51) under the control of an external PLC.

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims (3)

1. A thin energy-saving electric control vacuum generating and breaking valve is characterized by comprising: a valve seat (10) internally provided with a supply solenoid valve (20), a destruction solenoid valve (30) and a pressure detector (40) and electrically connected with a control loop (50), wherein the valve seat (10) is provided with an input port (101) for supplying a pneumatic source (P) therethrough, an exhaust port (102), an intake port (103) and a vacuum destruction adjusting button (11), and the control loop (50) is electrically connected with a digital display (60) arranged on the outer side surface of the valve seat (10) for displaying the value of the vacuum pressure inside the valve seat (10); a first flow path (A1) connected from the input port (101) to the supply solenoid valve (20) and a two-port, vacuum-generating two-position valve (12), respectively, and the first flow path (A1) further having a pressure regulating circuit (16) connected to the destruction solenoid valve (30); a second flow path (A2) connected by the supply solenoid valve (20) to a two-port, vacuum-generating two-position valve (12); a third flow path (A3) connected to a vacuum generator (13) by the vacuum generating two-port two-position valve (12); a fourth flow path (A4) for communicating the vacuum maintaining pipe (15) to the suction port (103) through a vacuum maintaining check valve (14) by the vacuum generator (13); a fifth flow path (A5) connected to a vacuum break pipe (1031) inside the suction port (103) by the break solenoid valve (31), and the vacuum break adjusting button (11) is used to cooperate with the air pressure adjusting circuit (16) to adjust the air pressure source (P), so that the input flow can store the flow required by the vacuum break in advance, and then the break solenoid valve (31) can directly conduct the flow to break the vacuum pressure of the sucked workpiece.

2. The thin energy-saving electric-controlled vacuum generating and breaking valve as claimed in claim 1, wherein the vacuum retaining check valve (14) is opened or closed to maintain the vacuum state formed from the vacuum retaining tube (15) to the suction port (103).

3. The thin, energy-saving, electrically controlled vacuum generating and breaking valve according to claim 1, wherein said control circuit (50) comprises: and the MCU microprocessor (51) can be used for judging the magnitude of the pressure value transmitted by the pressure detector (40), and controlling the opening and closing of the supply electromagnetic valve (20) and the breaking electromagnetic valve (30) to carry out vacuum maintenance so as to close the supply electromagnetic valve (20) when the vacuum pressure is maintained within the set range of the upper and lower vacuum limits.

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