High-low pressure gas switching gas circuit and static electricity eliminating system

Abstract

The utility model relates to a high-pressure and low-pressure gas switching gas circuit and an electrostatic eliminating system, which belong to the field of pneumatic systems and comprise a main gas circuit, one end of the main gas circuit is a gas inlet end, the other end of the main gas circuit is connected with a high-pressure branch and a low-pressure branch, a high-pressure regulating valve is arranged on the main gas circuit, and a low-pressure regulating valve is arranged on the low-pressure branch. A first switch valve is arranged on the high-pressure branch; and the air outlet ends of the high-voltage branch and the low-voltage branch are communicated with each other through a first branch and are respectively provided with static electricity removing equipment. The static electricity removing device has the advantages that the high-voltage branch and the low-voltage branch are switched through the first switch valve, gas circuits are reasonably switched in the static electricity removing process, resource waste is avoided, the purposes of energy conservation and environmental protection are achieved, the number of needed components is small, development cost is reduced, and economical efficiency and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic systems, in particular to a high- and low-pressure gas switching gas circuit and static electricity removal system. Background Art

[0002] During the display manufacturing and testing process, the product needs to be subjected to static electricity removal to prevent static electricity from damaging the product during testing. Commonly used static electricity removal equipment includes ion blowers and ion air wands. The ion air wands need to be connected to compressed air during use.

[0003] The problem is that the compressed gas continues to be ventilated both when there is product passing and when there is no product, which results in low energy utilization and waste. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high- and low-pressure gas switching gas circuit and static electricity removal system that can save energy.

[0005] The utility model solves the above technical problems with the following technical solutions: a high-low pressure gas switching gas circuit, comprising a main gas circuit, one end of the main gas circuit being an air inlet end, and the other end being connected to a high-pressure branch circuit and a low-pressure branch circuit, a high-pressure pressure regulating valve being provided on the main gas circuit, a low-pressure pressure regulating valve being provided on the low-pressure branch circuit, and a first switch valve being provided on the high-pressure branch circuit;

[0006] The gas outlet ends of the high-pressure branch and the low-pressure branch are connected to each other through a first branch and are respectively provided with static electricity removal equipment.

[0007] The beneficial effects of the present invention are: the high-pressure branch and the low-pressure branch are switched by the first switch valve, and the gas path is reasonably switched during the static electricity removal process, thereby avoiding waste of resources and achieving the purpose of energy saving and environmental protection. In addition, the number of components required is small, the development cost is reduced, and the economy and convenience are improved.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, it also includes a detection adsorption platform, which is located on one side of the static removal equipment. The detection adsorption platform is connected to the main gas path through a second branch and the connection position is located between the air inlet end of the main gas path and the high-pressure pressure regulating valve.

[0010] The beneficial effect of adopting the above further solution is: setting up a detection adsorption platform to adsorb the product, and the detection adsorption platform is also supplied with gas through the main gas line.

[0011] Furthermore, a one-way valve is provided on the main gas line, and the one-way valve is located between the high-pressure pressure regulating valve and the second branch.

[0012] The beneficial effect of adopting the above further solution is: the one-way valve separates the detection adsorption platform and the static electricity removal device, and when the detection adsorption platform performs adsorption vacuum, the static electricity removal device stops working.

[0013] Furthermore, a filter is provided on the main gas path, and the filter is located between the air inlet end of the main gas path and the second branch.

[0014] The beneficial effects of adopting the above further solution are: the filter filters the gas to improve the cleanliness, while protecting the detection adsorption platform and the static electricity removal equipment.

[0015] Furthermore, a second switch valve is provided at the air inlet end of the main air circuit.

[0016] The beneficial effect of adopting the above further solution is: the on-off of the main gas path is controlled by the second switch valve.

[0017] Furthermore, the second switch valve is a two-position five-way pilot solenoid valve, the air outlet of the two-position five-way pilot solenoid valve is connected to the main air path, and the air inlet of the two-position five-way pilot solenoid valve is connected to several external air sources.

[0018] The beneficial effect of adopting the above further solution is that the two-position five-way pilot-operated solenoid valve can be connected to a variety of gas sources.

[0019] Furthermore, the external air source includes a vacuum air source and a compressed air source.

[0020] The beneficial effect of adopting the above further solution is that the compressed gas is used to blow the static electricity removal equipment, and the vacuum air source is used to generate negative pressure on the detection adsorption platform to adsorb the product.

[0021] Furthermore, the first switch valve is a two-position three-way pilot-operated solenoid valve.

[0022] The beneficial effect of adopting the above further solution is that the high-voltage branch is controlled to be on and off by the two-position three-way pilot-operated solenoid valve.

[0023] Furthermore, the static electricity removal equipment is an ion wind rod.

[0024] The beneficial effect of adopting the above further solution is: quickly eliminating static electricity on the product.

[0025] A static electricity removal system comprises the high- and low-pressure gas switching gas circuit.

[0026] The beneficial effect of this solution is: when no product passes, the ion wind rod is connected to the low-voltage branch; when there is a product passing, the ion wind rod is connected to the high-voltage branch, which has a good effect in removing static electricity and is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic diagram of the gas circuit of the present utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Main gas line; 2. High-pressure branch; 3. Low-pressure branch; 4. High-pressure regulating valve; 5. Low-pressure regulating valve; 6. First on-off valve; 7. First branch; 8. Anti-static equipment; 9. Detection and adsorption platform; 10. Second branch; 11. One-way valve; 12. Filter; 13. Second on-off valve; 14. Third branch; 15. Second compressed gas line. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Example 1

[0032] like Figure 1 As shown, a high-low pressure gas switching gas circuit includes a main gas circuit 1, one end of the main gas circuit 1 is an air inlet end, and the other end is connected to a high-pressure branch circuit 2 and a low-pressure branch circuit 3. A high-pressure pressure regulating valve 4 is provided on the main gas circuit 1, a low-pressure pressure regulating valve 5 is provided on the low-pressure branch circuit 3, and a first switch valve 6 is provided on the high-pressure branch circuit 2;

[0033] The gas outlet ends of the high-pressure branch 2 and the low-pressure branch 3 are connected to each other through a first branch 7 and are respectively provided with static electricity removal equipment 8.

[0034] The beneficial effects of this embodiment are: by switching the high-pressure branch 2 and the low-pressure branch 3 through the first switch valve 6, the gas path is reasonably switched during the static electricity removal process, thereby avoiding waste of resources and achieving the purpose of energy saving and environmental protection. In addition, the number of components required is small, the development cost is reduced, and the economy and convenience are improved.

[0035] In this embodiment, the main gas circuit 1 is connected to an external gas source to provide compressed gas, the high-pressure regulating valve 4 is set to high pressure, and the low-pressure regulating valve 5 is set to low pressure;

[0036] When a product passes in front of the static electricity removal device 8 and a large amount of gas is needed to remove static electricity, the first switch valve 6 is opened, and the compressed gas passes through the high-pressure branch 2 and the first branch 7, and is then blown out by the two static electricity removal devices 8 to perform the static electricity removal work;

[0037] When located in the gap between product stations and no products are passing through, the first switch valve 6 is closed, blocking the high-pressure branch 2. The compressed gas can only pass through the low-pressure branch 3 and then be blown out by the static electricity removal equipment 8, reducing energy consumption.

[0038] Example 2

[0039] like Figure 1 As shown, preferably, on the basis of Example 1, a detection adsorption platform 9 is further included, and the detection adsorption platform 9 is located on one side of the static removal equipment 8. The detection adsorption platform 9 is connected to the main gas path 1 through a second branch 10, and the connection position is located between the air inlet end of the main gas path 1 and the high-pressure pressure regulating valve 4.

[0040] Preferably, a one-way valve 11 is provided on the main gas circuit 1 , and the one-way valve 11 is located between the high-pressure regulating valve 4 and the second branch 10 .

[0041] Preferably, a filter 12 is provided on the main gas path 1 , and the filter 12 is located between the air inlet end of the main gas path 1 and the second branch 10 .

[0042] Preferably, a second switch valve 13 is provided at the air inlet end of the main air circuit 1 .

[0043] Preferably, the second switch valve 13 is a two-position five-way pilot solenoid valve, the air outlet of the two-position five-way pilot solenoid valve is connected to the main air path 1, and the air inlet of the two-position five-way pilot solenoid valve is connected to several external air sources.

[0044] Preferably, the external air source includes a vacuum air source and a compressed air source.

[0045] In this embodiment, the main gas path 1 is connected to a vacuum gas source and a compressed gas source, which are switched by a second switch valve 13. The second switch valve 13 is a two-position five-way pilot solenoid valve. Figure 1 As shown, the control end of the two-position five-way pilot-operated solenoid valve is connected to the second compressed air circuit 15, and the second compressed air circuit 15 is used to drive the valve core of the two-position five-way pilot-operated solenoid valve to move.

[0046] The detection adsorption platform 9 is provided with air holes and is connected to the main air path 1 through the second branch 10. When the product is placed on the detection adsorption platform 9, the main air path 1 is connected to the compressed air source to blow out compressed gas, which forms an air film above the detection adsorption platform 9 to prevent the product from being scratched. At the same time, the first switch valve 6 is opened, and the compressed gas moves to the high-voltage branch 2 position and is blown out by the two static electricity removal devices 8 to remove static electricity.

[0047] After the product is placed in the correct position, the main air path 1 is switched to the vacuum air source for vacuuming, forming a negative pressure on the detection adsorption platform 9, which firmly adsorbs the product. Since the one-way valve 11 is located between the second branch 10 and the high-pressure regulating valve 4, the second branch 10 is separated from the high-pressure branch 2 and the low-pressure branch 3, preventing the vacuum environment of the detection adsorption platform 9 from being destroyed;

[0048] Therefore, when the adsorption detection platform 9 is in adsorption operation, the high-pressure branch 2 and the low-pressure branch 3 stop working.

[0049] In addition, a filter 12 is used to filter the gases in the second branch 10, the high-pressure branch 2 and the low-pressure branch 3 at the same time to protect the detection adsorption platform 9 and the static removal equipment 8, improve cleanliness, reduce costs, and facilitate automatic switching between compressed gas and vacuum air and the establishment of a vacuum environment.

[0050] Example 3

[0051] like Figure 1 As shown, preferably, on the basis of embodiment 1-2, the first switch valve 6 is a two-position three-way pilot-operated solenoid valve.

[0052] The beneficial effect of adopting the preferred solution in the above embodiment is that the high-pressure branch 2 is controlled to be on and off by the two-position three-way pilot-operated solenoid valve.

[0053] Specifically, in a pilot valve, the coil is first energized to open the pilot valve under the action of electromagnetic force, allowing gas to enter the solenoid valve core air chamber, and the air pressure is used to push the solenoid valve core to achieve the connection and disconnection between the gas paths. It has the advantages of fast response speed and wide application range.

[0054] In this embodiment, the control end of the two-position three-way pilot solenoid valve is also connected to a third branch 14, which is connected to the main air circuit 1 and provides the driving force for the valve core movement for the two-position three-way pilot solenoid valve through the main air circuit 1.

[0055] Example 4

[0056] like Figure 1 As shown, preferably, based on Examples 1-3, the static electricity removal device 8 is an ion wind rod.

[0057] The beneficial effect of adopting the preferred solution in the above embodiment is: quickly eliminating static electricity on the product.

[0058] As a parallel technical solution of this embodiment, the static electricity removal device 8 can also be an ion blower.

[0059] Example 5

[0060] like Figure 1 As shown, a static electricity removal system includes the high- and low-pressure gas switching gas circuit.

[0061] The beneficial effect of this solution is: when no product passes, the ion wind rod is connected to the low-voltage branch 3; when a product passes, the ion wind rod is connected to the high-voltage branch 2, which has a good effect of removing static electricity and is energy-saving and environmentally friendly.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0064] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0065] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-pressure and low-pressure gas switching gas circuit, characterized in that: The invention comprises a main gas circuit (1), one end of the main gas circuit (1) is an air inlet end, and the other end is connected to a high-pressure branch circuit (2) and a low-pressure branch circuit (3); a high-pressure pressure regulating valve (4) is provided on the main gas circuit (1), a low-pressure pressure regulating valve (5) is provided on the low-pressure branch circuit (3), and a first switch valve (6) is provided on the high-pressure branch circuit (2); The gas outlet ends of the high-pressure branch (2) and the low-pressure branch (3) are interconnected via a first branch (7) and are each provided with a static electricity removal device (8).

2. A high-pressure and low-pressure gas switching gas circuit according to claim 1, characterized in that: The invention also includes a detection adsorption platform (9), which is located on one side of the static electricity removal device (8). The detection adsorption platform (9) is connected to the main gas path (1) through a second branch (10), and the connection position is located between the air inlet end of the main gas path (1) and the high-pressure regulating valve (4).

3. A high- and low-pressure gas switching gas circuit according to claim 2, characterized in that: A one-way valve (11) is provided on the main gas circuit (1), and the one-way valve (11) is located between the high-pressure regulating valve (4) and the second branch circuit (10).

4. A high- and low-pressure gas switching gas circuit according to claim 3, characterized in that: A filter (12) is provided on the main gas path (1), and the filter (12) is located between the gas inlet end of the main gas path (1) and the second branch path (10).

5. A high- and low-pressure gas switching gas circuit according to claim 4, characterized in that: A second switch valve (13) is provided at the air inlet end of the main air path (1).

6. A high-pressure and low-pressure gas switching gas circuit according to claim 5, characterized in that: The second switch valve (13) is a two-position five-way pilot solenoid valve, the air outlet of the two-position five-way pilot solenoid valve is connected to the main air path (1), and the air inlet of the two-position five-way pilot solenoid valve is connected to a plurality of external air sources.

7. A high- and low-pressure gas switching gas circuit according to claim 6, characterized in that: The external air source includes a vacuum air source and a compressed air source.

8. The high- and low-pressure gas switching gas circuit according to claim 1, characterized in that: The first switch valve (6) is a two-position three-way pilot-operated solenoid valve.

9. The high- and low-pressure gas switching circuit according to any one of claims 1 to 8, characterized in that: The static electricity removal device (8) is an ion wind rod.

10. A static electricity removal system, characterized in that: The invention comprises the high-pressure and low-pressure gas switching gas circuit according to any one of claims 1 to 9.

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