CN210122973U

CN210122973U - Large-capacity vacuum control device

Info

Publication number: CN210122973U
Application number: CN201920438155.1U
Authority: CN
Inventors: 游平政; 宇威寰
Original assignee: Taiwan Qi Li Ltd Co
Current assignee: Taiwan Qi Li Ltd Co
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-03-03
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a large-capacity vacuum control device, which is provided with an air control chamber in the body, a vacuum generation two-port two-position valve and a vacuum destruction two-port two-position valve are arranged in the air control chamber, the air control chamber is communicated with a vacuum generation electromagnetic valve and a vacuum destruction electromagnetic valve which are arranged outside the body, a pressure source is communicated with the control chamber to an air inlet chamber in the body, an inlet and a vacuum pressure switch are communicated with a channel in the body to be matched with a check valve to an air inlet chamber, the side wall of the air inlet chamber is provided with two vacuum generators which run through an air inlet chamber and an air outlet chamber, the air outlet chamber is also provided with a silencer to form an outlet, the flow of the inlet is increased by the vacuum generators in parallel connection, the vacuum generation electromagnetic valve and the vacuum destruction electromagnetic valve are utilized to control vacuum generation and destruction, thereby respectively obtaining the vacuum energy-saving effect, when the suction inlet can adsorb a workpiece, the corresponding action can be kept for a certain time without continuously inputting a large amount of compressed air.

Description

Large-capacity vacuum control device

Technical Field

This creation is about a large capacity vacuum control device, and the body is inside to connect two vacuum generator through the parallel mode, outside letting the flow of sunction inlet can promote, more disposes vacuum and takes place the solenoid valve and destroy the solenoid valve with the vacuum, makes it respectively control vacuum and takes place and the state that the vacuum destroys.

Background

In the development process of the current industrial automation, the pneumatic vacuum technology is widely applied to various production lines, please refer to fig. 14, a vacuum generator (90) in the prior art has a pneumatic source (91), a suction port (92) and a discharge port (93), and its internal structure is quite simple, and its operation is to input compressed air from the pneumatic source (91) through the discharge port (93) to exhaust, and make the suction port (92) generate vacuum adsorption effect through the suction effect, so as to achieve the purpose of adsorbing workpieces;

the vacuum generator (90) is a jet type vacuum generator (90) which generates a certain degree of vacuum through compressed air by a nozzle (94) arranged in an air pressure source (91), and according to the working principle, the vacuum generator can only reach a limit vacuum degree under higher supply pressure, has high air consumption and is not beneficial to the energy saving of a pneumatic system.

Therefore, the vacuum generator (90) of the following type develops a high vacuum type and a high suction flow rate type, the former has a large slope of the curve, and the latter is flat. However, in the case of a nozzle (94) of a constant diameter, the suction flow rate must be reduced to obtain a high vacuum, while the pressure at the suction inlet must be increased to obtain a large suction flow rate; or, the mode of designing more and expanding the pressure pipes can be adopted, two three-stage pressure pipe type vacuum generators are connected in parallel, the suction flow can be doubled, but the consumption of the compressed air can also be doubled.

Accordingly, the present inventor has devised a vacuum control device with a large capacity by integrating design features of maintaining vacuum suction and reducing compressed air consumption through elaborate planning and design to solve the problems of the prior art.

Disclosure of Invention

It is a primary objective of the present invention to provide a high capacity vacuum control device that can increase the flow rate of the suction inlet and can control the vacuum generation and the vacuum destruction by a vacuum generation solenoid valve and a vacuum destruction solenoid valve respectively.

To achieve the above object, the present invention provides a large capacity vacuum control valve, comprising: a body is provided with a gas control chamber which can be used for arranging a vacuum generation two-port two-position valve and a vacuum destruction two-port two-position valve, the gas control chamber is communicated with a vacuum generation electromagnetic valve and a vacuum destruction electromagnetic valve which are arranged outside the body, a pressure source is communicated with the gas control chamber to an air inlet chamber in the body, a suction port and a vacuum pressure switch are communicated with a flow channel in the body to be matched with a check valve to a suction chamber, two vacuum generators penetrate through the suction chamber and a discharge chamber on the side wall of the air inlet chamber, a silencer is further arranged in the discharge chamber to form a discharge port, the vacuum generators are connected in parallel to increase the flow of the suction port, and the purposes of controlling vacuum generation and destruction by the vacuum generation electromagnetic valve and the vacuum destruction electromagnetic valve respectively are achieved.

The vacuum filter net is set at the connection between the suction inlet and the main body to reach the aim of vacuum filtering.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a perspective view of the present creation.

FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1 in the ready state.

FIG. 3 is a schematic sectional view of the present invention in the ready state shown in FIG. 1, taken along line B-B.

FIG. 4 is a schematic cross-sectional view of the present invention in the ready state shown in FIG. 1.

FIG. 5 is a schematic diagram of the present creation in the ready state.

FIG. 6 is a schematic cross-sectional view of the present invention in a vacuum generating state.

FIG. 7 is a schematic cross-sectional view of the present invention in a vacuum generating state.

FIG. 8 is a schematic diagram of the circuit of the present invention in a vacuum generating state.

FIG. 9 is a schematic cross-sectional view of the present invention in a vacuum-holding state.

FIG. 10 is a schematic diagram of the circuit of the present invention in a vacuum holding state.

FIG. 11 is a cross-sectional view of the present invention in a vacuum broken state.

FIG. 12 is a schematic cross-sectional view of the present invention in a vacuum broken state.

FIG. 13 is a schematic diagram of the circuit of the present invention in a vacuum broken state.

Fig. 14 is a schematic diagram of the prior art.

Description of reference numerals:

(10) .., main body

(11) .. air control chamber

(12) .. air pressure source

(13) .. suction inlet

(131) .. vacuum filter screen

(14) .. discharge port

(15) .. flow passage

(151) .. check valve

(20) .. vacuum generating electromagnetic valve

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

(30) .. vacuum breaking electromagnetic valve

(31) .. vacuum break two-port two-position valve

(40) .. vacuum pressure switch

(41) .. vacuum signal

(50) .. air inlet chamber

(51) .. air suction chamber

(52) .. air exhaust chamber

(521) .. muffler

(60) .. vacuum generator

(90) .. vacuum generator

(91) .. air pressure source

(92) .. suction inlet

(93) .. discharge port

(94) .. nozzle

Detailed Description

In general, the best mode contemplated by the present inventors, to the extent that they are referred to in the drawings and detailed description, will be understood by those skilled in the art;

first, referring to fig. 1-5, the present invention is a large-capacity vacuum control device, which comprises: a main body 10, a gas control chamber 11 is provided inside the main body 10, the gas control chamber 11 is mainly used for arranging a two-port two-position valve 21 for vacuum generation and a two-port two-position valve 31 for vacuum destruction, and the gas control chamber 11 is communicated with a vacuum generation solenoid valve 20 and a vacuum destruction solenoid valve 30 which are arranged outside the main body 10, as can be seen from fig. 1, the vacuum generation solenoid valve 20 and the vacuum destruction solenoid valve 30 are arranged in parallel in a transverse direction.

In fig. 2-4, it can be seen from the section a-a, the section B-B and the section C-C of fig. 1 that a pneumatic source 12 is disposed on the left side of the body 10, the air pressure source 12 connects the air 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 and a vacuum pressure switch 40 are connected to a flow passage 15 in the body 10, the vacuum pressure switch 40 is mainly used to detect the vacuum degree in the flow channel 15, so as to generate a vacuum signal 41, the vacuum signal 41 can be associated with the external wire connected to the vacuum generation solenoid valve 20 and the vacuum breaking solenoid valve 30, the flow channel 15 is matched with a check valve 151 to an air suction chamber 51, and the number of the check valves 151 is not limited by two in the present invention.

The side wall of the air inlet chamber 50 is further provided with two vacuum generators 60 penetrating through an air suction chamber 51 and an air discharge chamber 52, the air discharge chamber 52 is further provided with a muffler 521 to form an air discharge port 14, the air inlet chamber 50, the air suction chamber 51 and the air discharge chamber 52 are all arranged below the body 10, the vacuum generators 60 are connected in parallel to increase the flow rate of the air suction port 13, the vacuum generation solenoid valve 20 and the vacuum breaking solenoid valve 30 are used for respectively controlling vacuum generation and breaking, and a vacuum filter screen 131 is further arranged at the connection position between the air suction port 13 and the body 10 for vacuum filtration.

Referring to fig. 5, a circuit diagram of the present invention in the ready state shows that the vacuum generating solenoid valve 20, the two-port vacuum two-position valve 21, the vacuum breaking solenoid valve 30 and the two-port vacuum two-position valve 31 are all closed and inactive.

Referring to fig. 6-8, in order to make the present invention in the vacuum generating state, after the compressed air is inputted from the air pressure source 12, the compressed air passes through the vacuum generating solenoid valve 20, and then pushes the two-port two-position valve 21 to open and circulate into the air inlet chamber 50, and then passes through the air suction chamber 51 and the air exhaust chamber 52 along the two vacuum generators 60 installed in the present invention, and finally is exhausted through the exhaust port 14 installed in the muffler 521, when the compressed air passes through the air suction chamber 51, the vacuum pressure switch 40 detects that the predetermined target is reached, the air suction port 13 sucks the atmospheric pressure from the outside of the main body 10, and the atmospheric pressure flows into the air suction chamber 51 through the check valve 151 via the flow channel 15, thereby making the air suction port 13 generate the vacuum suction force, and the check valve 151 is installed in two pieces in the present invention, but not limiting the number thereof.

Referring to fig. 9 and 10, in order to maintain the vacuum state, when the vacuum pressure switch 40 detects the vacuum state to reach the default vacuum level, the two-port vacuum valve 21 is turned off from open, the vacuum solenoid valve 20 is turned off, and the vacuum suction force in the flow channel 15 is turned off by the check valve 151, so that the suction port 13 can still maintain the state of sucking the workpiece, and the compressed air does not need to be continuously supplied to maintain vacuum, thereby achieving the purpose of saving energy.

Referring to fig. 11-13, in order to achieve the vacuum breaking state, when the vacuum maintaining state needs to be broken, the compressed air passes through the vacuum breaking solenoid valve 30, and then pushes the vacuum breaking two-port two-position valve 31 to open and circulate to the air inlet chamber 50 and the flow passage 15, and the compressed air is discharged from the air inlet 13 and the air outlet 14, respectively, so as to release the vacuum breaking state.

In summary, the present invention provides a high capacity vacuum control device, which is mainly characterized in that two vacuum generators 60 are connected in parallel through the interior of the main body 10, so as to increase the flow rate of the suction port 13, and the vacuum generating solenoid valve 20 is used in cooperation with the two-port vacuum generating two-position valve 21, and the vacuum breaking solenoid valve 30 is used in cooperation with the two-port vacuum breaking two-position valve 31, so as to form two loops for respectively controlling vacuum generation and breaking, thereby obtaining the effect of vacuum energy saving, so that when the suction port 13 is used for adsorbing a workpiece, it is not necessary to continuously input a large amount of compressed air, and it can keep a certain time to perform corresponding actions.

Claims

1. A high capacity vacuum control apparatus, comprising: a body (10) having a control air chamber (11) for setting a vacuum generating two-port two-position valve (21) and a vacuum destroying two-port two-position valve (31), and the control air chamber (11) is connected to a vacuum generating electromagnetic valve (20) and a vacuum destroying electromagnetic valve (30) arranged outside the body (10), a pneumatic source (12) is connected to the control air chamber (11) to an air inlet chamber (50) in the body (10), an air inlet (13) and a vacuum pressure switch (40) are connected to a flow passage (15) in the body (10) to match a check valve (151) to an air inlet chamber (51), two vacuum generators (60) are arranged on the side wall of the air inlet chamber (50) to penetrate through the air inlet chamber (51) and an air outlet chamber (52), the air outlet chamber (52) is further provided with a silencer (521) to form an air outlet (14), and the flow of the air inlet (13) is increased by connecting the vacuum generators (60) in parallel, so as to control the vacuum generation and destruction by the vacuum generation solenoid valve (20) and the vacuum destruction solenoid valve (30), respectively.

2. A high capacity vacuum control device as claimed in claim 1, wherein the body (10) further comprises: a vacuum filter screen (131) arranged at the connection position of the suction inlet (13) and the inside of the body (10).