Thin energy-saving electronically controlled vacuum generating and breaking valve

Abstract

The invention discloses a thin energy-saving electrically controlled vacuum generating and destroying valve, which comprises: a valve seat, in which a supply and destroying electromagnetic valve and a pressure detector are arranged, and all of which are electrically connected to a control circuit; the valve seat is also provided with an input port, an exhaust port, an inlet port and a vacuum destroying adjustment button through which a supply air pressure source passes; the valve seat is also provided with first to fifth flow paths for vacuum maintenance and destruction; the air pressure source is adjusted by the vacuum destroying adjustment button in cooperation with an air pressure regulating circuit, and after the output flow is pre-stored with the flow required for vacuum destruction, the destroying electromagnetic valve outputs the most appropriate flow to destroy the vacuum pressure of the sucked workpiece, and reduces the reverse flow of the vacuum destroying tube, so as to maintain a stable output of the vacuum destroying flow; and an MCU microprocessor is used in cooperation with a pressure detector to judge the value of the vacuum pressure and control the switch of the supply electromagnetic valve.

Description

Technical Field

[0001] The invention relates to the field of electric-controlled vacuum generators, in particular to a thin energy-saving electric-controlled vacuum generating and destroying valve. Background Art

[0002] The internal structure of the thin electric control valve of the vacuum generator generally used in the industry is usually designed to allow the gas flow for vacuum breaking to pass through the vacuum breaking solenoid valve first, and then be adjusted according to the required flow. In actual application, it usually takes several adjustments to achieve the best use state.

[0003] When the aforementioned vacuum generator is destroyed under 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 to some of the connected passages. This structure causes the gas flow to be slightly unstable and the gas flow to be wasted. Summary of the invention

[0004] The purpose of the present invention is to provide a thin energy-saving electrically 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 after feeding back the information to the control circuit, the air pressure regulating circuit further drives the supply solenoid valve and the destroying solenoid valve to adjust the vacuum pressure. So far, the present invention structure includes: a valve seat, which is internally provided with a supply solenoid valve, a destroying solenoid valve, and a pressure detector, and all of which are electrically connected to the control circuit. The valve seat has an input port, an exhaust port, an inlet port, and a vacuum destroying adjustment button for supplying an air pressure source. The control circuit is electrically connected to a digital display arranged on the outer surface of the valve seat to display the value of the vacuum pressure inside the valve seat; a first flow path is connected from the input port to the supply solenoid valve and a vacuum A two-port two-position valve is generated, and the first flow path is further provided with an air pressure regulating circuit connected to the destruction electromagnetic valve; a second flow path is connected from the supply electromagnetic valve to the vacuum generating two-port two-position valve; a third flow path is connected from the vacuum generating two-port two-position valve to the vacuum generator; a fourth flow path is connected from the vacuum generator to the vacuum holding tube to the suction port via the vacuum holding check valve; a fifth flow path is connected from the destruction electromagnetic valve to the vacuum destruction tube inside the suction port, and the air pressure source is adjusted by the vacuum destruction adjustment knob in conjunction with the air pressure regulating circuit, so that the input flow can pre-store the flow required for vacuum destruction, so that the destruction electromagnetic valve can directly conduct the most appropriate flow to destroy the vacuum pressure of the sucked workpiece, and thereby reduce the reverse flow generated by the vacuum destruction tube, and maintain a stable output of the vacuum destruction flow.

[0005] The second major technical purpose is that the vacuum maintaining check valve can maintain the vacuum state formed from the vacuum maintaining tube to the suction port for a longer period of time by opening and closing.

[0006] Another technical purpose is that the control loop further includes: an MCU microprocessor, which can be used to determine the pressure value transmitted by the pressure detector, and control the opening and closing of the supply solenoid valve and the destruction solenoid valve to achieve the control purpose of vacuum maintenance or vacuum destruction.

[0007] To achieve the above-mentioned purpose, the present invention uses various flow paths in the valve seat to maintain and destroy the vacuum, and then detects and determines the internal vacuum pressure through a control loop, an MCU microprocessor, and a pressure detector, thereby driving the opening and closing of the supply solenoid valve and the destruction solenoid valve, making the vacuum maintenance control technology more sensitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the present invention in a preparation state.

[0009] Figure 2 It is a schematic diagram of the present invention in a vacuum generating state.

[0010] Figure 3 It is a schematic diagram of the present invention in a vacuum holding state.

[0011] Figure 4 It is a schematic diagram of the present invention in a vacuum breaking state.

[0012] Figure 5 It is a block diagram of the present invention cooperating with the control loop.

[0013] Description of reference numerals:

[0014] (10)...valve seat

[0015] (101)...Input port

[0016] (102)...Discharge outlet

[0017] (1021)...Silencer

[0018] (103)...suction port

[0019] (1031)...Vacuum Breaker Tube

[0020] (11)...Vacuum release adjustment knob

[0021] (12)...Vacuum generating two-port two-position valve

[0022] (13)...Vacuum generator

[0023] (14)...Vacuum holding check valve

[0024] (15)...Vacuum holding tube

[0025] (16)...Air pressure regulating circuit

[0026] (20)...Supply solenoid valve

[0027] (30)...Destroy the solenoid valve

[0028] (40)...Pressure detector

[0029] (50)...Control loop

[0030] (51)...MCU microprocessor

[0031] (60)...Digital Display

[0032] (P)...Air pressure source

[0033] (A1)...First flow path

[0034] (A2)...Second flow path

[0035] (A3)...Third flow path

[0036] (A4)...Fourth flow path

[0037] (A5)...the fifth flow path. DETAILED DESCRIPTION

[0038] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0039] The present invention is a thin energy-saving electrically controlled vacuum generating and destroying valve, the structure of which comprises: a valve seat (10), a supply solenoid valve (20), a destroying solenoid valve (30) and a pressure detector (40) are arranged inside, and all of them are electrically connected to a control circuit (50); the valve seat (10) further has an input port (101) for supplying a gas pressure source (P), an exhaust port (102), a suction port (103) and a vacuum destroying regulating button (11); the control circuit (50) is electrically connected to a digital display (60) arranged on the outer surface of the valve seat (10), and can be used to display the value of the vacuum pressure inside the valve seat (10);

[0040] See also Figure 1The places marked by the dotted lines are the first flow path (A1), which is connected from the input port (101) to the supply electromagnetic valve (20) and a vacuum generating two-port two-position valve (12), and the first flow path (A1) is further provided with a gas pressure regulating circuit (16) connected to the destruction electromagnetic valve (30); the second flow path (A2), which is connected from the supply electromagnetic valve (20) to a vacuum generating two-port two-position valve (12); the third flow path (A3), which is connected from the vacuum generating two-port two-position valve (12) to a vacuum generator (12); and the fourth flow path (A4), which is connected from the vacuum generator (13) through a vacuum maintaining The check valve (14) is connected to the vacuum holding tube (15) and the suction port (103); a fifth flow path (A5) is connected to a vacuum breaking tube (1031) inside the suction port (103) by the breaking solenoid valve (31), and the air pressure source (P) is adjusted by the vacuum breaking adjustment knob (11) in cooperation with the air pressure regulating circuit (16), so that the input flow is pre-stored to the flow required for vacuum breaking, so that 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 a stable output of the vacuum breaking flow.

[0041] Please refer to Figure 1 As shown, it is a state of preparation for vacuum generation, wherein it can be seen that the air pressure source (P) is in a closed state after being input from the input port (101) to the first flow path (A1), and the suction port (103) is also closed;

[0042] Please refer to Figure 2 As shown, in the vacuum generating state, it can be seen that after the air pressure source (P) of the first flow path (A1) cooperates with the supply solenoid valve (20) to open, the vacuum generating 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 discharged to the outside of the valve seat (10) through the muffler (1021) through the vacuum generator (13), and the vacuum holding check valve (14) uses the fourth flow path (A4) to cooperate with the suction port (103) to adsorb the workpiece.

[0043] Please refer to Figure 3 As shown, it is a vacuum holding state. Under the aforementioned vacuum state, by closing the vacuum holding check valve (22), the vacuum pressure can be kept in the vacuum holding tube (15), thereby maintaining the state of the suction port (103) adsorbing the workpiece.

[0044] Please refer to Figure 4As shown, it is a vacuum breaking state. Under the aforementioned vacuum generation and holding state, the first flow path (A1) cooperates with the vacuum breaking adjustment key (11) through a pressure regulating circuit (16) to the breaking solenoid valve (30), and then passes through the fifth flow path (A5) through the vacuum breaking pipe (1031) to enter the suction port (123), thereby breaking the vacuum holding state of the original adsorbed workpiece.

[0045] Please refer to Figure 5 As shown, it is a block diagram of the control loop (50) of the present invention. The control loop (50) is mainly operated by external buttons to perform menu control. The main control items are:

[0046] 1. Setting of upper and lower limits of vacuum.

[0047] 2. PLC external control setting: PLC cannot set upper and lower limits of vacuum. After the user sets PLC in the menu, the PLC can be used for external opening and closing.

[0048] In the figure, the buttons can be used in conjunction with the LCD screen display to select menus and control the upper and lower limits of the vacuum. The upper and lower limits of the vacuum are then transmitted to the MCU microprocessor (51) in the control loop (50). The vacuum pressure is increased to the upper limit of the vacuum degree by using the supply solenoid valve (20), and then the vacuum pressure is maintained to adsorb the workpiece. The pressure detector (40) is also used to transmit the pressure back to the MCU microprocessor (51) in real time to determine the vacuum pressure value to feedback and control the opening and closing of the supply solenoid valve (20), so that the vacuum pressure is maintained within the upper and lower limit settings. At this time, the supply solenoid valve (20) and the vacuum generating two-port two-position valve (12) can be closed to achieve the purpose of saving air pressure source and power saving. The destruction solenoid valve (30) is used to allow the adsorbed workpiece to be detached, and this part will not be repeated.

[0049] In general, the newly added control loop (50) can achieve vacuum maintenance control technology through the pressure detector (40) and the MCU microprocessor (51). If the control of the upper and lower limits of vacuum is not needed, it can be directly turned off through the menu. When the user controls through an external PLC, he can only issue instructions to turn the MCU microprocessor (51) on and off.

[0050] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A thin energy-saving electrically controlled vacuum generating and breaking valve, characterized in that: The invention comprises: a valve seat (10) having a supply solenoid valve (20), a destruction solenoid valve (30) and a pressure detector (40) arranged therein, and all of which are electrically connected to a control circuit (50); the valve seat (10) has an input port (101) through which a gas pressure source (P) is supplied, an exhaust port (102), an inlet port (103) and a vacuum destruction adjustment button (11); the control circuit (50) is electrically connected to a digital display (60) arranged on the outer 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 vacuum generating two-port two-position valve (12); and the first flow path (A1) is further provided with a gas pressure regulating circuit (16) connected to the destruction solenoid valve (30 ); a second flow path (A2) connected from the supply solenoid valve (20) to a vacuum generating two-port two-position valve (12); a third flow path (A3) connected from the vacuum generating two-port two-position valve (12) to a vacuum generator (13); a fourth flow path (A4) connected from the vacuum generator (13) to a vacuum holding pipe (15) to a suction port (103) via a vacuum holding check valve (14); a fifth flow path (A5) connected from the destruction solenoid valve (30) to a vacuum destruction pipe (1031) inside the suction port (103), and the air pressure source (P) is adjusted by the vacuum destruction adjustment knob (11) in cooperation with the air pressure regulating circuit (16) so that the input flow is pre-stored with the flow required for vacuum destruction, so that the destruction solenoid valve (30) can directly conduct the flow to destroy the vacuum pressure of the sucked workpiece.

2. According to claim 1, the thin energy-saving electrically controlled vacuum generating and breaking valve is characterized in that: The vacuum holding check valve (14) maintains the vacuum state formed from the vacuum holding pipe (15) to the suction port (103) by opening and closing.

3. According to claim 1, the thin energy-saving electric-controlled vacuum generating and breaking valve is characterized in that: The control circuit (50) comprises: an MCU microprocessor (51) which can be used to determine the pressure value transmitted by the pressure detector (40), and to control the vacuum maintenance by controlling the opening and closing of the supply solenoid valve (20) and the destruction solenoid valve (30). When the vacuum pressure is maintained within the vacuum upper and lower limit setting range, the supply solenoid valve (20) can be closed.

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