Multi-pressure control gas path system and lens film pasting device

Abstract

The utility model discloses a multi-pressure control gas path system and a lens film pasting device, which belong to the technical field of multi-pressure gas paths, and the technical scheme is that the multi-pressure control gas path system comprises a vacuum pump and a plurality of cavities, the vacuum pump is connected with a main valve, the vacuum pump is respectively connected with the plurality of cavities through the main valve, and branch valves are respectively arranged between the main valve and the plurality of cavities. The plurality of vacuum sensors are connected with the plurality of cavities in a one-to-one correspondence manner; according to the utility model, the same vacuum pump is connected with a plurality of cavities, so that different vacuum values can be kept among the cavities, the production and processing cost is saved, and meanwhile, the vacuum values in the cavities are controlled more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-pressure gas circuits, and more specifically to a multi-pressure control gas circuit system. Background Art

[0002] During the lens film production process, a vacuum environment is required to avoid the generation of bubbles. A set of cavities (upper and lower cavities) may require different vacuum degrees, and sometimes a certain positive pressure is required to make the lens and the adhesive fit tightly.

[0003] However, the existing way to obtain vacuum is to use a vacuum pump to extract the air in the cavity. A vacuum pump is connected to one or more cavities, and the vacuum values ​​of multiple cavities are the same. When different cavities require different vacuum values, only one vacuum pump can be set up in each cavity to evacuate the air, which increases the cost a lot. Utility Model Content

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multi-pressure controlled air circuit system comprises a vacuum pump and a plurality of cavities, wherein the vacuum pump is connected to a main valve, and the vacuum pump is respectively connected to the plurality of cavities through the main valve, and sub-valves are respectively arranged between the main valve and the plurality of cavities, and also comprises a plurality of vacuum sensors, and the plurality of vacuum sensors are connected to the plurality of cavities in a one-to-one correspondence.

[0006] The utility model is further configured as follows: the main valve and a plurality of the branch valves are connected via a multi-way pipe joint.

[0007] The utility model is further configured as follows: the plurality of cavities include an upper cavity and a lower cavity, and the upper cavity and the lower cavity are separated by the object to be bonded.

[0008] The utility model is further configured as follows: the upper chamber or the lower chamber is connected to an air compressor, and a control valve is arranged between the air compressor and the upper chamber or the lower chamber.

[0009] The utility model is further configured as follows: a three-way pipe joint is arranged between the upper chamber or the lower chamber and the split valve, and the control valve is connected to the three-way pipe joint.

[0010] The utility model is further configured as follows: the main valve, the sub-valve and the control valve are all solenoid valves.

[0011] In addition, the utility model also provides a lens film sticking device, which includes the above-mentioned multi-pressure control air circuit system.

[0012] Compared with the prior art, the utility model has at least the following advantages:

[0013] 1. By setting sub-valves between the main valve and several cavities respectively, and monitoring the vacuum value in the cavity in real time through the vacuum sensor connected to the cavity, when the first vacuum value is reached, the sub-valve of the upper cavity can be closed to keep the vacuum degree of the upper cavity at the first vacuum value, and the vacuum pump continues to evacuate the lower cavity until the second vacuum value is reached; the same vacuum pump is connected to multiple cavities, so that different vacuum values ​​can be maintained between the cavities to form a pressure difference, so as to carry out lens film application, save production and processing costs, and make the vacuum value control in the cavity more precise.

[0014] 2. By connecting an air compressor to one of the upper chamber or the lower chamber, the switching of vacuum and positive pressure air pressure in the same chamber can be realized. When the object to be bonded is placed between the upper chamber and the lower chamber, the air compressor fills the cavity with positive pressure gas, which increases the pressure difference on both sides of the object to be bonded and achieves a better bonding effect.

[0015] 3. The air compressor is connected between the sub-valve and the upper or lower chamber through a three-way pipe joint, so that the pipeline connection is completed through the same opening of the cavity, avoiding additional holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the first embodiment. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] First embodiment:

[0020] A multi-pressure controlled gas circuit system, such as Figure 1As shown, it includes a vacuum pump and several cavities. The vacuum pump is connected to a main valve. The vacuum pump is connected to several cavities through the main valve. The vacuum pump can evacuate the several cavities. Sub-valves are respectively arranged between the main valve and the several cavities, so that the cavity can be cut off individually without affecting the vacuuming of other cavities.

[0021] It also includes a number of vacuum sensors, the number of which is the same as the number of cavities. The vacuum sensors are connected to the cavities one by one to monitor the vacuum value in the cavity in real time, so that the system can control the valve in time and accurately grasp the pressure in the cavity.

[0022] In this embodiment, the plurality of cavities are specifically configured as two, including an upper cavity and a lower cavity. The upper cavity and the lower cavity are separated by the object to be bonded to form two independent cavities. One side of the object to be bonded is located in the upper cavity and the other side is located in the lower cavity. The object to be bonded is attached by the pressure difference between the upper cavity and the lower cavity.

[0023] The main valve is connected to a plurality of sub-valves via a multi-way pipe joint. In this embodiment, the main valve is connected to the sub-valves of the upper chamber and the lower chamber via a three-way pipe joint.

[0024] The upper chamber or the lower chamber is connected to an air compressor, and a control valve is arranged between the air compressor and the upper chamber or the lower chamber. In this embodiment, the air compressor is connected to the upper chamber, and positive pressure gas is filled into the upper chamber, which can increase the pressure difference between the upper chamber and the lower chamber and improve the adhesion strength.

[0025] A three-way pipe joint is arranged between the upper chamber or the lower chamber and the sub-valve. In this embodiment, the three-way pipe joint is connected between the sub-valve and the upper chamber, and the control valve is connected to the three-way pipe joint, so that the upper chamber completes the pipeline connection with the same opening, avoiding additional hole opening to increase processing costs.

[0026] In this embodiment, the main valve, sub-valve and control valve are all solenoid valves, which have fast response speed and high reliability, can meet the system's demand for precise control of the gas path, are easy to install and maintain, and have low cost.

[0027] The working process of the utility model is as follows:

[0028] The upper chamber and the lower chamber are separated into two independent chambers by the object to be bonded, the valves of the upper chamber and the lower chamber are both opened, and the vacuum pump is working. At this time, the vacuum values ​​of the upper chamber and the lower chamber are the same. When the first vacuum value is reached, the valve of the upper chamber is closed. At this time, the vacuum degree of the upper chamber is maintained at the first vacuum value, and the vacuum pump continues to evacuate the lower chamber until the second vacuum value is reached, thereby achieving a pressure difference between the upper chamber and the lower chamber by the same vacuum pump.

[0029] When the upper and lower chambers reach the required vacuum value, the valves of the upper and lower chambers are closed, the vacuum pump is disconnected from the upper and lower chambers, and the control valve is opened. At this time, the air compressor is connected to the upper chamber, and positive pressure gas is filled into the upper chamber, realizing the switching of vacuum and positive pressure air pressures in the same cavity.

[0030] Second embodiment:

[0031] A lens film sticking device comprises the multi-pressure controlled air path system described in the above embodiment.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-pressure controlled gas circuit system, characterized in that: It includes a vacuum pump and several cavities, the vacuum pump is connected to a main valve, the vacuum pump is connected to the several cavities respectively through the main valve, sub-valves are respectively arranged between the main valve and the several cavities, and also includes several vacuum sensors, the several vacuum sensors are connected to the several cavities in a one-to-one correspondence.

2. A multi-pressure control gas circuit system according to claim 1, characterized in that: The main valve and the plurality of sub-valves are connected via a multi-way pipe joint.

3. A multi-pressure control gas circuit system according to claim 1, characterized in that: The plurality of cavities include an upper cavity and a lower cavity, and the upper cavity and the lower cavity are separated by the object to be bonded.

4. A multi-pressure control gas circuit system according to claim 3, characterized in that: The upper chamber or the lower chamber is connected to an air compressor, and a control valve is arranged between the air compressor and the upper chamber or the lower chamber.

5. A multi-pressure control gas circuit system according to claim 4, characterized in that: A three-way pipe joint is provided between the upper chamber or the lower chamber and the split valve, and the control valve is connected to the three-way pipe joint.

6. A multi-pressure control gas circuit system according to claim 1, characterized in that: The main valve, sub-valve and control valve are all solenoid valves.

7. A lens film sticking device, characterized in that: A multi-pressure controlled gas circuit system comprising any one of claims 1 to 6.

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