TW202035904A - Large-volume vacuum controlling device characterized in there is no need of continuously inputting a large amount of compressed gas, and a corresponding action can be kept in a certain period of time - Google Patents

Abstract

A large-volume vacuum controlling device is provided with a gas controlling chamber in a main body and used for allowing a vacuum generating two-port two-stage valve and a vacuum breaking two-port two-stage valve to be disposed therein, the gas controlling chamber is in communication with a vacuum generating electromagnetic valve and a vacuum breaking electromagnetic valve which disposed at an outer side of the main body; a gas pressure source is in communication with the gas controlling chamber to a gas inlet chamber in the main body, and a suction inlet and a vacuum pressure switch are in communication with a flow channel in the main body which works with a check valve to a gas suction chamber, a lateral wall of the gas inlet chamber are provided with two vacuum generator penetrating the gas suction chamber and a gas discharge chamber, the gas discharge chamber is further provided with a noise buffer for forming an outlet port, so that a flow amount of the suction inlet can be increased through the vacuum generators being arranged in parallel, the vacuum generating electromagnetic valve and the vacuum breaking electromagnetic valve can be respectively used for controlling a generating and a breaking status, thereby obtaining a vacuum and energy saving effect, when the suction inlet is served to suck a work piece, there is no need of continuously inputting a large amount of compressed gas, and a corresponding action can be kept in a certain period of time.

Description

Large-capacity vacuum control device

This creation is about a large-capacity vacuum control device. Two vacuum generators are connected in parallel inside the main body to increase the flow rate of the suction port. It is also equipped with a vacuum generating solenoid valve and a vacuum breaking solenoid valve to enable separate control. The state of vacuum generation and vacuum destruction.

In the current development of industrial automation, pneumatic vacuum technology has been widely used in various production lines. Please refer to Figure 14. As shown in Figure 14, the conventional vacuum generator (90) shows a pneumatic source (91) and a suction port (92). ), and a discharge port (93), its internal structure is quite simple, its operation is through the compressed air input from the air pressure source (91) through the discharge port (93) for exhaust, and the suction port ( 92) Produce the effect of vacuum adsorption, and then achieve the purpose of adsorbing the workpiece;

The aforementioned vacuum generator (90) is a jet-type vacuum generator (90), which generates a certain degree of vacuum through the nozzle (94) in the pressure source (91) through compressed air. According to its working principle, it can only The ultimate vacuum is reached under higher supply pressure, and the gas consumption is very large, which is not conducive to the energy saving of the pneumatic system;

Therefore, subsequent vacuum generators (90) of this type generally developed a high vacuum type and a high suction flow type, the former has a large curve slope and the latter is flat. However, when the diameter of the nozzle (94) is constant, in order to obtain a high vacuum, the suction flow must be reduced, and in order to obtain a large suction flow, the pressure at the suction port must be increased; or more designs and expansions can be used In the compression tube mode, two three-stage diffuser tube vacuum generators are connected in parallel, which can double the suction flow rate, but also double the consumption of compressed air;

Therefore, from the above-mentioned shortcomings of the current vacuum generators, various problems in actual use can be understood. In view of this, the author will maintain the vacuum suction and reduce the consumption of compressed air through careful planning and design. The integration of features has redesigned a large-capacity vacuum control device to improve various problems of the conventional structure.

One of the main purposes of this creation is to provide a large-capacity vacuum control device that increases the flow rate of the suction port and can separately control the generation and destruction of vacuum with a vacuum generating solenoid valve and a vacuum breaking solenoid valve;

In order to achieve the above-mentioned purpose, a large-capacity vacuum control valve of this creation includes: a body with a control air chamber, which can be used to set a vacuum generating two-port two-position valve and a vacuum breaking two-port two-position valve , And the air control chamber is connected to a vacuum generating solenoid valve and a vacuum breaking solenoid valve provided outside the body, and a pressure source connects the air control chamber to an air inlet chamber in the body, and a suction port and a vacuum pressure The switch connects the flow channel in the body with a check valve to a suction chamber. The side wall of the suction chamber is provided with two vacuum generators penetrating a suction chamber and an exhaust chamber. The exhaust chamber is further provided with a The muffler forms an exhaust port, and the vacuum generator is connected in parallel to increase the flow rate of the suction port, and the vacuum generating solenoid valve and the vacuum breaking solenoid valve are used to control vacuum generation and destruction respectively.

Another purpose of this creation is that the body has a vacuum filter at the junction of the suction port and the body to achieve the purpose of vacuum filtration.

Usually according to this creation, the best feasible embodiment, coupled with the drawings and detailed description, to increase the understanding of this creation;

First of all, please refer to Figures 1 to 5 of the drawings. This creation is a large-capacity vacuum control device. Its structure includes: a body (10) with a control air chamber ( 11) The air control chamber (11) is mainly used for setting a vacuum generating two-port two-position valve (21) and a vacuum breaking two-port two-position valve (31), and the air control chamber (11) is connected to the body (10) A vacuum generating solenoid valve (20) and a vacuum breaking solenoid valve (30) are arranged outside. It can be seen from Figure 1 that the vacuum generating solenoid valve (20) and the vacuum breaking solenoid valve (30) are horizontal Set side by side;

Among them, in Figures 2 to 4, please also view the AA section, BB section, and CC section of Figure 1. It can be seen that an air pressure source (12) is arranged on the left side of the main body (10), the air pressure source (12) The air control chamber (11) is connected to an air inlet chamber (50) in the main body (10), and a suction port (13) is provided above the main body (10), and the suction port (13) is connected to a The vacuum pressure switch (40) is connected to the flow channel (15) in the body (10). The vacuum pressure switch (40) is mainly used to detect the vacuum degree in the flow channel (15) to generate a vacuum signal (41), the vacuum signal (41) can be connected to the vacuum generating solenoid valve (20) and the vacuum breaking solenoid valve (30) in conjunction with an external wire, and the flow channel (15) is matched with a check valve ( 151) To a suction chamber (51), the check valve (151) adopts two settings in this creation, and the number is not limited;

The side wall of the intake chamber (50) is also provided with two vacuum generators (60) penetrating an intake chamber (51) and an exhaust chamber (52), and the exhaust chamber (52) is further provided with a muffler ( 521) forms an exhaust port (14), and the aforementioned intake chamber (50), suction chamber (51), and exhaust chamber (52) are all arranged under the body (10), by means of the vacuum generator (60) The parallel connection is used to increase the flow rate of the suction port (13), and the vacuum generating solenoid valve (20) and the vacuum breaking solenoid valve (30) are used to control the vacuum generation and destruction respectively, and the suction port (13) A vacuum filter screen (131) is further provided at the connection with the body (10), which can be used for vacuum filtration.

Please refer to Figure 5, which is the circuit diagram created in the preparation state. It can be seen that the vacuum generating solenoid valve (20), the vacuum generating two-port two-position valve (21), the vacuum breaking solenoid valve (30), and The vacuum-breaking two-port two-position valve (31) is closed and not activated.

Please refer to Figures 6-8, which are created in the vacuum generation state. When the compressed air is input from the air pressure source (12), the vacuum generation solenoid valve (20) will push the vacuum to generate two ports. The position valve (21) is opened to flow into the intake chamber (50), and then the two vacuum generators (60) set up along this creation pass through the suction chamber (51) and exhaust chamber (52), and finally pass The exhaust port (14) provided by the muffler (521) is discharged, and when it passes through the suction chamber (51), after the vacuum pressure switch (40) detects that the predetermined target is reached, the suction port (13) will be removed from the body (10) Atmospheric pressure is sucked in from the outside, and this atmospheric pressure flows into the suction chamber (51) through the check valve (151) through the flow passage (15), thereby allowing the suction port (13) to generate vacuum suction, and the reverse The check valve (151) is set in two pieces in this creation, but its number is not limited;

Please refer to Figures 9 to 10, which are created in the vacuum holding state. When the aforementioned vacuum generation state is detected by the vacuum pressure switch (40) to reach the preset vacuum level, the vacuum is generated in two ports and two positions. The valve (21) will change from open to closed, and the vacuum generating solenoid valve (20) will also turn closed, and the vacuum suction in the flow channel (15) will be closed by the check valve (151), allowing the suction port (13) It can still maintain the state of sucking the workpiece, so that the compressed air does not need to be continuously supplied to maintain the vacuum, so as to achieve the purpose of saving energy;

Please also refer to Figures 11 to 13, which was originally created in a vacuum breaking state. When the aforementioned vacuum holding state needs to be broken, the compressed air will push the vacuum break through the vacuum breaking solenoid valve (30). The two-position valve (31) is opened and circulated to the intake chamber (50) and the flow passage (15), and discharged from the suction port (13) and the discharge port (14) respectively, so as to release the vacuum destruction state;

In summary, the large-capacity vacuum control device of this invention mainly connects the two vacuum generators (60) in parallel through the inside of the main body (10) to increase the flow rate of the suction port (13) and use the The vacuum generating solenoid valve (20) cooperates with the vacuum generating two-port two-position valve (21) and the vacuum breaking solenoid valve (30) cooperates with the vacuum breaking two-port two-position valve (31) to form two sets of circuits to control the vacuum generation separately In order to obtain the effect of vacuum energy saving, the suction port (13) can be used for adsorbing the workpiece without continuously inputting a large amount of compressed air, and it can also be maintained for a certain time to perform corresponding actions.

(10): Body (11): Air control chamber (12): Air pressure source (13): suction port (131): Vacuum filter (14): Outlet (15): Runner (151): Check valve (20): Vacuum generating solenoid valve (21): Two-port two-position valve for vacuum generation (30): Vacuum destruction solenoid valve (31): Vacuum destruction two-port two-position valve (40): Vacuum pressure switch (41): Vacuum signal (50): intake chamber (51): Suction chamber (52): Exhaust chamber (521): Silencer (60): Vacuum generator (90): Vacuum generator (91): Air pressure source (92): suction port (93): Outlet (94): Nozzle

[Picture 1] is a three-dimensional drawing created by this. [Picture 2] is a schematic diagram of the A-A section of the preparation state created in Picture 1. [Picture 3] is a schematic diagram of the B-B section of the preparation state created in Picture 1. [Picture 4] is a schematic diagram of the C-C section of the preparation state created in Picture 1. [Picture 5] is a schematic diagram of the circuit created in the preparation state. [Picture 6] is a cross-sectional schematic diagram created in a vacuum generating state. [Picture 7] is a cross-sectional schematic diagram created in a vacuum generating state. [Picture 8] is a schematic diagram of the circuit created in the state of vacuum generation. [Figure 9] is a schematic cross-sectional view created in the vacuum holding state. [Figure 10] is a schematic diagram of the circuit created in the vacuum holding state. [Picture 11] is a schematic cross-sectional view created in a vacuum broken state. [Picture 12] is a schematic cross-sectional view created in the state of vacuum destruction. [Picture 13] is a schematic diagram of the circuit created in a vacuum broken state. [Figure 14] is a schematic diagram of the conventional technology.

(12): Air pressure source

(13): suction port

(131): Vacuum filter

(14): Outlet

(15): Runner

(151): Check valve

(20): Vacuum generating solenoid valve

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

(30): Vacuum destruction solenoid valve

(31): Vacuum destruction two-port two-position valve

(40): Vacuum pressure switch

(41): Vacuum signal

(521): Silencer

(60): Vacuum generator

Claims (2)

A large-capacity vacuum control device, which comprises: a body (10) with a control air chamber (11) for setting a vacuum generation, two-port two-position valve (21) and a vacuum break, two-port two-position valve (31) , And the air control chamber (11) is connected to a vacuum generating solenoid valve (20) and a vacuum breaking solenoid valve (30) provided outside the body (10), and a gas pressure source (12) is connected to the air control chamber (11) To an intake chamber (50) in the body (10), and a suction port (13) and a vacuum pressure switch (40) are connected to the flow channel (15) in the body (10) to fit a check valve (151) to a suction chamber (51), the side wall of the suction chamber (50) is provided with two vacuum generators (60) penetrating a suction chamber (51) and an exhaust chamber (52), the exhaust chamber (52) A muffler (521) is further provided to form a discharge port (14). The vacuum generator (60) is connected in parallel to increase the flow rate of the suction port (13), and the vacuum generator (20) and the solenoid valve The vacuum breaking solenoid valve (30) individually controls the generation and breaking of vacuum. According to the large-capacity vacuum control device described in item 1 of the scope of patent application, the body (10) further includes: a vacuum filter (131) arranged in the suction port (13) and the body (10) Of the connection.

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