TWI695948B - Large capacity vacuum control device - Google Patents

Abstract

A large-capacity vacuum control device has a gas control chamber in its body, which can be used for a vacuum generating two-port two-position valve and a vacuum-breaking two-port two-position valve, and the gas control chamber communicates with the outside of the body. A vacuum generating solenoid valve and a vacuum breaking solenoid valve, and a pressure source connects the control chamber to an air inlet chamber in the body, and a suction port and a vacuum pressure switch are connected to the first-class channel in the body. Check valve to an suction chamber. Two vacuum generators are installed on the side wall of the intake chamber to penetrate an suction chamber and an exhaust chamber. The exhaust chamber is further provided with a muffler to form an exhaust port. The vacuum generator is connected in parallel In addition to increasing the flow rate of the suction port, the vacuum generation solenoid valve and the vacuum destruction solenoid valve are used to control the generation and destruction of vacuum separately, so as to obtain the effect of vacuum energy saving, so that the suction port can absorb the workpiece without continuing a large amount Input compressed air can also maintain the corresponding action for a certain period of time.

Description

Large capacity vacuum control device

This creation is about a large-capacity vacuum control device. The two vacuum generators are connected in parallel inside the body to increase the flow rate of the suction port. The vacuum generation solenoid valve and vacuum destruction solenoid valve are also configured to enable them to be controlled separately. The state of vacuum occurrence and vacuum destruction.

In the current development process 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) can be seen with a pressure source (91) and a suction port (92) ), and a discharge port (93), its internal structure is quite simple, its operation is through compressed air from the air pressure source (91) input through the discharge port (93) for exhaust, through the suction effect to make the suction port ( 92) Produce the effect of vacuum suction, and then achieve the purpose of adsorbing the workpiece; the aforementioned vacuum generator (90) is a jet-type vacuum generator (90), which passes compressed air through a nozzle (94) provided in the air pressure source (91) ) Produces a certain degree of vacuum, according to its working principle, it can only reach the ultimate vacuum at a 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 of this type (90 ) Roughly developed a high vacuum type and a high suction flow type, the former has a large slope and the latter is flat. However, if the diameter of the nozzle (94) is fixed, to obtain a high vacuum, the suction flow must be reduced, and to obtain a large suction flow, the pressure at the suction port must be increased; or it can be designed and expanded. Pressure tube method, with two three-stage diffuser tube vacuum production The parallel connection of the generators can double the suction flow rate, but also double the consumption of compressed air; therefore, from the above shortcomings of the current vacuum generator, we can understand the various problems in actual use, there are In view of this, through careful planning and design, the creator will integrate the design features of maintaining vacuum suction and reducing the consumption of compressed air to redesign 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 occurrence and destruction of the vacuum by the vacuum generation solenoid valve and the vacuum destruction solenoid valve; , A large-capacity vacuum control valve of this creation, which includes: a body has a gas control chamber, which can be used for a vacuum to generate two-port two-position valve and a vacuum to destroy two-port two-position valve, and control the gas The 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 gas control chamber to an air inlet chamber in the body, and a suction port and a vacuum pressure switch communicate the The first-class channel in the body cooperates with a check valve to an suction chamber. The side wall of the intake chamber is provided with two vacuum generators penetrating an suction chamber and an exhaust chamber. The exhaust chamber is further provided with a silencer to form a The discharge port is connected in parallel by the vacuum generator to increase the flow rate of the suction port, and the purpose of vacuum generation and destruction is controlled by the vacuum generation solenoid valve and the vacuum destruction solenoid valve respectively.

For another purpose of this creation, the body has a vacuum filter provided at the connection between the suction port and the body, so as to achieve the purpose of vacuum filtration.

(10): Ontology

(11): gas control chamber

(12): Air pressure source

(13): suction port

(131): Vacuum filter

(14): discharge port

(15): flow channel

(151): Check valve

(20): Vacuum generating solenoid valve

(21): Vacuum generation two-port two-position valve

(30): Vacuum destruction solenoid valve

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

(40): Vacuum pressure switch

(41): Vacuum signal

(50): Inlet chamber

(51): Suction chamber

(52): Exhaust chamber

(521): Silencer

(60): Vacuum generator

(90): vacuum generator

(91): Air pressure source

(92): suction port

(93): discharge port

(94): Nozzle

[Picture 1] It is a perspective view of this creation.

[Figure 2] This is a schematic cross-sectional view of A-A in the preparation state created in Figure 1.

[Figure 3] This is a schematic cross-sectional view of the B-B in the ready state created in Figure 1.

[Figure 4] This is a schematic cross-sectional view of C-C in the ready state created in Figure 1.

[Figure 5] This is a schematic diagram of the circuit in the preparation state.

[Figure 6] This is a schematic sectional view taken along line A-A of the vacuum generation state created in Figure 1.

[Figure 7] This is a C-C cross-sectional view of the vacuum generation state created in Figure 1.

[Figure 8] is a schematic diagram of the circuit created in the state of vacuum generation.

[Figure 9] This is a schematic sectional view taken along the line A-A of the vacuum holding state created in Figure 1.

[Figure 10] This is a schematic diagram of the circuit created in the vacuum holding state.

[Figure 11] This is a schematic sectional view taken along the line B-B created in the vacuum broken state of Figure 1.

[Figure 12] This is a C-C schematic cross-sectional view of the vacuum failure state created in Figure 1.

[Figure 13] is a schematic diagram of the circuit created in the state of vacuum destruction.

[Figure 14] is a schematic diagram of a conventional technique.

Usually based on this creation, the best possible embodiment, together with the drawings and detailed descriptions, to increase the understanding of this creation; first, please refer to Figures 1~5 of the figure, this creation is A large-capacity vacuum control device, the structure of which includes: a body (10) with an air control chamber inside (11), the gas control chamber (11) is mainly used for a vacuum generating two-port two-position valve (21) and a vacuum breaking two-port two-position valve (31), and the gas control chamber (11) is connected to A vacuum generating solenoid valve (20) and a vacuum breaking solenoid valve (30) provided outside the body (10), it can be seen from the first figure that the vacuum generating solenoid valve (20) and the vacuum breaking solenoid valve (30) are Horizontally arranged side by side; among them, Figures 2~4, please also use the AA section, BB section, and CC section of Figure 1 to watch together. It can be seen that a pressure source (12) is provided on the left side of the body (10). The source (12) communicates the gas control chamber (11) to an air inlet chamber (50) in the body (10), and a suction port (13) is provided above the body (10), and the suction port ( 13) Communicate with a vacuum pressure switch (40) to the first 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), thereby A vacuum signal (41) is generated. The vacuum signal (41) is connected to the vacuum generating solenoid valve (20) and the vacuum breaking solenoid valve (30) in conjunction with external wires, and the flow channel (15) cooperates with a Check valve (151) to an intake chamber (51). The check valve (151) is set in two in this creation, the number of which is not limited; and the side wall of the intake chamber (50) also Two vacuum generators (60) are provided to penetrate an intake chamber (51) and an exhaust chamber (52). The exhaust chamber (52) is further provided with a silencer (521) to form an exhaust port (14), which The aforementioned intake chamber (50), suction chamber (51), and exhaust chamber (52) are all provided below the body (10), and the vacuum generator (60) is used in parallel to make the suction The flow rate of the port (13) is increased, and the vacuum generation solenoid valve (20) and the vacuum breaking solenoid valve (30) are used to control the generation and destruction of vacuum, and the suction port (13) and the body (10) A vacuum filter (131) is further provided at the connection, which can be used for vacuum filtration.

Please refer to the circuit diagram shown in Figure 5, which was 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 break two-port two-position valve (31) is closed and not activated.

Please refer to Figures 6~8, which is based on the creation of a vacuum. After the compressed air is input to 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 passes through the suction chamber (51) and the exhaust chamber (52) along the two vacuum generators (60) provided by this creation, and finally passes The exhaust port (14) provided in the muffler (521) is discharged, and the vacuum pressure switch (40) detects that the predetermined target is reached when the vacuum pressure switch (40) passes through the suction chamber (51), and the suction port (13) will be discharged from the body (10) External suction atmospheric pressure, this atmospheric pressure flows into the suction chamber (51) through the check valve (151) through the flow channel (15), thereby allowing the suction port (13) to generate vacuum suction, and the reverse The check valve (151) is set to two pieces in this creation, but the number is not limited; please refer to the figure 9~10, it is based on the creation of the vacuum holding state, when the aforementioned vacuum occurs, the state passes through the vacuum When the pressure switch (40) detects that the preset target of vacuum is reached, the vacuum generating two-port two-position valve (21) will change from open to closed, and the vacuum generating solenoid valve (20) will also turn to close, and the flow path ( 15) The vacuum suction force will be closed by the check valve (151), so that the suction port (13) 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 refer to Figures 11~13, which is based on the vacuum destruction state. When the vacuum maintenance state needs to be destroyed, the compressed air will pass through the vacuum destruction solenoid valve (30), which will push the vacuum to break. The position valve (31) opens to the intake chamber (50) and the flow channel (15), and is discharged from the suction port (13) and the discharge port (14), respectively, to release the vacuum damage state; in summary, the above Create a large-capacity vacuum control device, mainly by connecting two vacuum generators (60) in parallel through the body (10), the flow rate of the suction port (13) can be increased, and the vacuum generation solenoid valve (20) is used ) Cooperate with the vacuum generation two-port two-position valve (21), and the vacuum breaking solenoid valve (30) cooperate with the vacuum breaking two-port two-position valve (31) to form two groups of circuits to control the vacuum generation and breaking respectively Bad, so as to obtain the effect of vacuum energy saving, so that when the suction port (13) can attract the workpiece, it does not need to continuously input a large amount of compressed air, and can also maintain a certain time to perform the corresponding action.

(12): Air pressure source

(13): suction port

(131): Vacuum filter

(14): discharge port

(15): flow channel

(151): Check valve

(20): Vacuum generating solenoid valve

(21): Vacuum generation two-port two-position valve

(30): Vacuum destruction solenoid valve

(31): Vacuum damage 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, comprising: a body (10), having a gas control chamber (11) for a vacuum generating two-port two-position valve (21) and a vacuum breaking two-port two-position valve (31) And the gas control chamber (11) communicates with a vacuum generating solenoid valve (20) and a vacuum breaking solenoid valve (30) provided outside the body (10), and a pressure source (12) communicates with the gas control chamber (11) To an air inlet chamber (50) in the body (10), and a suction port (13) and a vacuum pressure switch (40) communicate with the first-class channel (15) in the body (10) and cooperate with a check valve (151) to an suction chamber (51), two vacuum generators (60) are provided on the side wall of the intake chamber (50) to penetrate an intake chamber (51) and an exhaust chamber (52), the exhaust chamber (52) A muffler (521) is further provided to form an outlet (14), and the vacuum generator (60) is connected in parallel to increase the flow rate of the suction port (13), and the vacuum generating solenoid valve (20) and The vacuum destruction solenoid valve (30) controls the occurrence and destruction of vacuum separately. The large-capacity vacuum control device according to item 1 of the patent application scope, wherein the body (10) further includes: a vacuum filter (131) disposed in the suction port (13) and the body (10) Connection.

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