TW202204798A - Thin energy-saving electronically controlled vacuum generating and breaking valve including a valve seat that is internally provided with a supply solenoid valve, a breaking solenoid valve, and a pressure detector, all of which are electrically connected to a control circuit - Google Patents

Abstract

A thin energy-saving electronically controlled vacuum generating and breaking valve includes: a valve seat that is internally provided with a supply solenoid valve, a breaking solenoid valve, and a pressure detector, all of which are electrically connected to a control circuit. The valve seat is further provided with an input port for allowing an air pressure source to pass through, a discharge port, a suction port, and a vacuum breaking adjustment knob. The valve seat is also provided with first to fifth flow paths for vacuum maintaining and breaking. The vacuum breaking adjustment knob functions with an air pressure regulating circuit to adjust the air pressure source for accumulating the output flow to a flow required for vacuum breaking, so that the breaking solenoid valve can output the most appropriate flow to break the vacuum pressure of the sucked workpiece, reduce the reverse flow of the vacuum breaking tube, and maintains a stable output of the vacuum breaking flow. A MCU microprocessor and a pressure detector can be also used to determine a value of vacuum pressure and control a switch of the supply solenoid valve.

Description

Thin energy-saving electronically controlled vacuum generation and destruction valve

The invention belongs to the field of electronically controlled vacuum generators, in particular to a thin and energy-saving electronically controlled vacuum generating and destroying valve.

In general vacuum generators used in the industry, the internal structure of the thin electric control valve is usually designed to allow the flow of gas to be destroyed by the vacuum. It needs to be adjusted several times to get the best use condition.

When the above-mentioned vacuum generator is destroyed in a vacuum state, the gas flow for destruction is usually directly introduced under the original vacuum passage inside the suction port. This often causes the gas flow to flow back into some of the connected passages. This structure A situation in which the gas flow rate is slightly unstable and the gas flow rate is flattened.

In view of the above-mentioned various situations and problems, the creators have accumulated many years of development experience in related industries, and after intensive research, after integrating the above-mentioned conventional structures, they have created a thin energy-saving electronically controlled vacuum generator that is more in line with the needs of modern users. and break valve;

The present invention is a thin and energy-saving electronically controlled vacuum generating and destroying valve. Its main technical purpose is to use a pressure detector to measure the vacuum pressure in the valve seat, and to feed back the information to the control loop to adjust the pressure through the air pressure. The circuit further drives the supply solenoid valve and the destruction solenoid valve to adjust the vacuum pressure. So far, the creative structure includes: a valve seat, which is provided with a supply solenoid valve, a destruction solenoid valve, and a pressure detector, all of which are electrically connected to the control circuit. , The valve seat has an input port, a discharge port, a suction port, and a vacuum breaking adjustment button that can pass the air pressure source. The control circuit is electrically connected to a digital display set on the outer surface of the valve seat to display the internal vacuum pressure of the valve seat value; a first flow path is respectively connected to the supply solenoid valve and a vacuum generating two-port two-position valve from the input port, and the first flow path is further provided with an air pressure regulating circuit connected to the destruction solenoid valve; a The second flow path is connected by the supply solenoid valve to the vacuum generating two-port two-position valve; a third flow path is connected by the vacuum generating two-port two-position valve to the vacuum generator; a fourth flow path is connected by the vacuum generator The generator is connected to the vacuum holding pipe to the suction port through the vacuum holding check valve; a fifth flow path is connected to the vacuum breaking pipe inside the suction port through the breaking solenoid valve, and the vacuum breaking adjustment knob is used to match the air pressure The adjustment circuit adjusts the air pressure source, so that the input flow is pre-stored with the flow required for vacuum breaking, so that the breaking solenoid valve can directly conduct the most appropriate flow to break the vacuum pressure of the sucked workpiece, and then reduce the reverse pressure generated by the vacuum breaking tube. flow, maintaining a stable output of vacuum breaking flow.

The second technical purpose is that, by opening and closing the vacuum holding check valve, the vacuum state formed from the vacuum holding pipe to the suction port can be maintained for a long time.

The technical purpose again is that the control loop further includes: an MCU microprocessor, which can be used to judge the pressure value transmitted by the pressure detector, so as to control the opening and closing of the supply solenoid valve and the destruction solenoid valve, thereby For the control purpose of vacuum hold or vacuum break.

Through the above purpose, the present invention provides vacuum maintenance and destruction through each flow path in the valve seat, and then detects and judges the internal vacuum pressure through the control circuit, MCU microprocessor, and pressure detector, and then drives the supply solenoid valve and destroys it. The opening and closing of the solenoid valve makes the control technology of vacuum maintenance more sensitive.

Generally, according to the present invention, the best feasible embodiment is described in detail with reference to Figs. 1 to 4 of the drawings, so as to increase the understanding of the present invention; the present invention is a thin energy-saving electronically controlled vacuum generating and destroying valve, and its structure includes: A valve seat (10) is provided with a supply solenoid valve (20), a break solenoid valve (30), and a pressure detector (40), all of which are electrically connected to a control circuit (50). The valve seat (10) It further has an input port (101), a discharge port (102), a suction port (103), and a vacuum breaking adjustment button (11) for supplying an air pressure source (P) through, the control loop (50) ) is electrically connected to a digital display (60) arranged on the outer surface of the valve seat (10), which can be used to display the value of the vacuum pressure inside the valve seat (10);

Please refer to the places marked by the dotted lines in Figure 1, which are the first flow paths (A1), which are respectively connected to the supply solenoid valve (20) and a vacuum generating two-port two-position valve (A1) from the input port (101). 12), and the first flow path (A1) is further provided with an air pressure regulating circuit (16) connected to the destruction solenoid valve (30); the second flow path (A2) is connected by the supply solenoid valve (20) connected to a vacuum generating two-port two-position valve (12); the third flow path (A3) is connected to a vacuum generator (12) through the vacuum generating two-port two-position valve (12); a first The fourth flow path (A4) is connected by the vacuum generator (13) through a vacuum holding check valve (14) to the vacuum holding pipe (15) to the suction port (103); a fifth flow path ( A5), the breaking solenoid valve (31) is connected to a vacuum breaking pipe (1031) inside the suction port (103), and the vacuum breaking adjusting button (11) is matched with the air pressure regulating circuit (16) Adjust the air pressure source (P) to allow the input flow to store the required flow for vacuum destruction in advance, so that the destruction solenoid valve (31) can directly conduct the most appropriate flow to destroy the vacuum pressure of the sucked workpiece, thereby reducing the vacuum The reverse flow generated by the breaking tube (1031) maintains a stable output of the vacuum breaking flow.

Please refer to Figure 1, which is a ready state for vacuum generation, in which it can be seen that the air pressure source (P) is input from the input port (101) to the first flow path (A1) and is in a closed state, and the suction port ( 103) The same is closed;

Please refer to Fig. 2, which is in the state of vacuum generation. After the air pressure source (P) of the first flow path (A1) cooperates with the supply solenoid valve (20) to open, the second flow path (A2) makes the The vacuum generating two-port two-position valve (12) is opened, and after the third flow path (A3) is opened, the air pressure source (P) is discharged to the valve seat ( 10) outside, and the vacuum holding check valve (14) uses the fourth flow path (A4) to cooperate with the suction port (103) for the purpose of adsorbing the workpiece.

Please refer to Fig. 3, which is in a vacuum holding state. Under the aforementioned vacuum generating state, after closing the vacuum holding check valve (22), the vacuum pressure can stay in the vacuum holding tube (15), and then The suction port (103) is maintained in a state where the workpiece is sucked.

Please refer to Fig. 4, which is in the state of vacuum breaking. In the above-mentioned vacuum generating and maintaining state, the first flow path (A1) cooperates with the vacuum breaking adjustment key (11) to pass through a pressure regulating circuit (16) to the breaking solenoid valve. In (30), the fifth flow path (A5) passes through the vacuum breaking tube (1031) and enters the suction port (123), thereby destroying the vacuum holding state that originally adsorbed the workpiece.

Please refer to FIG. 5 again, which is a block diagram of the control loop (50) of the present invention. The aforementioned control loop (50) mainly controls the menu through external buttons, and the main control items are: 1. Setting the upper and lower limits of vacuum. 2. PLC external control setting, PLC cannot be used to set the upper and lower limits of vacuum. After the user sets the PLC in the menu, the PLC can be used for external opening and closing. In the figure, the buttons can be used in conjunction with the LCD screen display to perform menu selection and control the vacuum upper and lower limit settings, and then transmit the vacuum upper and lower limit data to the MCU microprocessor (51) in the control loop (50), and use the supply solenoid valve ( 20) After raising the vacuum pressure to the upper limit of the vacuum degree, the vacuum pressure is maintained to adsorb the workpiece, and the pressure detector (40) is also used to cooperate with the real-time return pressure to the MCU microprocessor (51) to judge the value of the vacuum pressure for feedback control. The supply solenoid valve (20) is turned on and off to keep the vacuum pressure within the set range of the upper and lower limits of the vacuum. At this time, the supply solenoid valve (20) and the vacuum generating two-port two-position valve (12) can be closed to save the air pressure source and The purpose of saving electricity, and destroying the solenoid valve (30) is used when the adsorption workpiece is released, and this part will not be repeated;

In general, through the newly added control loop (50), the pressure detector (40) cooperates with the MCU microprocessor (51) to achieve the control technology of maintaining the vacuum. If the control of the upper and lower limits of vacuum is not required, it can be closed directly through the menu. When the user controls through the external PLC, the user can only issue commands to turn the MCU microprocessor (51) on and off.

(10): Valve seat (101): Input port (102): discharge port (1021):Silencers (103): suction port (1031): Vacuum Destruction Tube (11): Vacuum break adjustment knob (12): Two-port two-position valve for vacuum generation (13): Vacuum generator (14): Vacuum hold check valve (15): Vacuum holding tube (16): Air pressure regulating circuit (20): Supply solenoid valve (30): Destroy the solenoid 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

[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 the state of vacuum generation. [FIG. 3] is a schematic diagram of the present invention in a vacuum holding state. [FIG. 4] is a schematic diagram of the present invention in a state of vacuum failure. [Fig. 5] is a block structure diagram of the present invention in coordination with the control loop.

(10): Valve seat

(101): Input port

(102): discharge port

(1021):Silencers

(103): suction port

(1031): Vacuum Destruction Tube

(11): Vacuum break adjustment knob

(12): Two-port two-position valve for vacuum generation

(13): Vacuum generator

(14): Vacuum hold check valve

(15): Vacuum holding tube

(16): Air pressure regulating circuit

(20): Supply solenoid valve

(30): Destroy the solenoid 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

Claims (3)

A thin energy-saving electronically controlled vacuum generating and breaking valve, comprising: a valve seat (10), a supply solenoid valve (20), a breaking solenoid valve (30), and a pressure detector (40) are arranged inside, and all of them are provided with a valve seat (10). Electrically connected to a control circuit (50), the valve seat (10) further has an input port (101), a discharge port (102), a suction port (103), and a a vacuum breaking adjustment button (11), the control circuit (50) is electrically connected to a digital display (60) and arranged on the outer surface of the valve seat (10) for displaying the value of the internal vacuum pressure of the valve seat (10); A first flow path (A1) is respectively 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 An air pressure regulating circuit (16) is connected to the destruction solenoid valve (30); a second flow path (A2) is connected to a vacuum generating two-port two-position valve (12) from the supply solenoid valve (20) ); a third flow path (A3), which is connected to a vacuum generator (13) by the vacuum generating two-port two-position valve (12); a fourth flow path (A4), which is connected by the vacuum generator (13), the vacuum holding pipe (15) is connected to the suction port (103) through a vacuum holding check valve (14); a fifth flow path (A5) is connected by the breaking solenoid valve (31) A vacuum breaking tube (1031) is connected to the inside of the suction port (103), and the air pressure source (P) is adjusted by the vacuum breaking adjustment knob (11) in conjunction with the air pressure regulating circuit (16), so that the input flow is stored in advance After the required flow rate of vacuum breaking, the breaking solenoid valve (31) can directly conduct the most appropriate flow to break the vacuum pressure of the sucked workpiece, thereby reducing the reverse flow generated by the vacuum breaking tube (1031), and maintaining the vacuum breaking flow rate. stable output. According to claim 1 of the scope of the application, the thin-type energy-saving electronically controlled vacuum generating and breaking valve, wherein the vacuum holding check valve (14) is opened and closed to form the vacuum holding pipe (15) to the suction port (103). The vacuum state can be maintained for a long time. According to the thin energy-saving electronically controlled vacuum generating and breaking valve described in claim 1 of the scope of the application, the control circuit (50) further comprises: an MCU microprocessor (51), which can be used to determine the pressure detector (40) The value of the transmitted pressure is used to control the opening and closing of the supply solenoid valve (20) and the destruction solenoid valve (30), and the control purpose of maintaining the vacuum. When the vacuum pressure is kept within the set range of the upper and lower limits of the vacuum, it can be closed The solenoid valve (20) is supplied to achieve the purpose of saving air pressure source and electricity.

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