A sealing performance detection device of a vacuum coating machine

Abstract

The utility model relates to vacuum coating technology field discloses a kind of vacuum coating machine sealing performance detection device, comprising: coating machine body, the upper end of coating machine body is equipped with the vacuum gauge of vacuum degree detection;Gas extraction guide is arranged in the inner cavity of coating machine body, the isolation component of dust filtration is installed on the gas extraction guide, the outside of coating machine body is provided with the driving element of isolation component drive;Through the cooperation between driving element, vacuum unit, gas extraction guide and isolation component, vacuum unit can be enough to carry out gas extraction treatment to coating machine body under the guidance of gas extraction guide, and then make the negative pressure in coating machine body to vacuum state, simultaneously, driving element can drive the rotation of the anti-blocking structure of isolation component, and then make the dust cleaning on the filter structure of anti-blocking structure, avoid dust to block filter structure, and then guarantee the detection accuracy of vacuum gauge, to improve the sealing performance detection efficiency of coating machine body.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating technology, specifically to a device for testing the sealing performance of a vacuum coating machine. Background Technology

[0002] Vacuum coating technology is frequently used on plastic and metal workpieces. The coating not only protects the workpiece and prevents wear and oxidation, but also makes the workpiece surface smooth and highly decorative. The existing coating technology involves converting the thin film material from a solid state to a gaseous state and finally depositing it on the surface of the workpiece to form a thin film. It is widely used in industrial fields such as automobiles, home appliances, daily packaging, and craft decoration.

[0003] In existing technologies, vacuum coating machines need to be tested for vacuum level before use to ensure coating quality. However, traditional testing methods typically involve directly connecting a vacuum gauge to the vacuum coating machine. This method allows fine dust or target material generated during the operation of the vacuum coating machine to enter the vacuum gauge through the pipe, affecting the accuracy of the vacuum gauge and thus the quality of the product during vacuum coating. Therefore, we need to propose a vacuum coating machine sealing performance testing device. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum coating machine sealing performance testing device. By setting a filter structure between the vacuum gauge and the vacuum coating machine, the device filters out the fine dust and target material generated during the operation of the vacuum coating machine, thereby preventing them from affecting the vacuum machine. At the same time, an anti-clogging structure is set on the filter structure to prevent the filter structure from being blocked, further ensuring the accuracy of the vacuum gauge's testing structure, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum coating machine sealing performance testing device, comprising:

[0006] A coating machine body, wherein a vacuum gauge for detecting vacuum level is installed at the upper end of the coating machine body;

[0007] An air extraction guide is installed in the inner cavity of the coating machine body. An isolation component for filtering micro-dust is installed on the air extraction guide. A drive component for driving the isolation component is provided on the outer side of the coating machine body. The drive component drives the isolation component to reduce the blockage of the isolation component by micro-dust.

[0008] A vacuum unit is installed on the outside of the coating machine body below the drive component, and the coating machine body is evacuated by the vacuum unit.

[0009] Preferably, the isolation assembly includes a filter structure and an anti-clogging structure, wherein the anti-clogging structure is rotatably mounted on one side of the filter structure;

[0010] The anti-clogging structure includes a docking shaft and a cleaning brush plate. The cleaning brush plate is fixedly connected to one end of the docking shaft. A mounting hole for installing the docking shaft is provided on one side of the filter structure. Two sets of third sealing rings are sleeved on the outside of the docking shaft, and the two sets of third sealing rings are respectively located at both ends of the mounting hole.

[0011] Preferably, the driving component includes a motor, and a mounting base for the motor is provided on the outer side of the coating machine body. The output shaft of the motor is driven by a rotating shaft. One end of the rotating shaft is provided with a square hole for the insertion of a docking shaft. The end of the docking shaft relative to the cleaning brush plate is arranged as a square column. Two sets of first sealing rings are sleeved on the outer side of the rotating shaft, and grooves are provided on the coating machine body for the installation of the two sets of first sealing rings.

[0012] Preferably, the air extraction guide includes an air extraction hood fixedly connected to the upper end of the inner cavity of the coating machine, a support ring for supporting the filter structure is fixedly connected to the inner wall of the air extraction hood, a fixed cover is installed at the air inlet end of the air extraction hood, and an external thread for threaded installation of the fixed cover is provided on the outer side of the air extraction hood.

[0013] Preferably, the fixing cover is an annular tubular structure, and an inner pressure ring inserted into the air extraction hood is fixedly connected to the inner wall of the fixing cover. A second sealing ring is provided between the inner pressure ring and the filter structure.

[0014] Preferably, the vacuum unit includes a vacuum pump and a connecting pipeline, with one end of the connecting pipeline connected to the suction hood and the suction end of the vacuum pump connected to the other end of the connecting pipeline.

[0015] Preferably, the connecting pipeline includes a connecting air pipe, a connecting threaded sleeve, and a suction pipe. The connecting threaded sleeve is slidably disposed at one end of the connecting air pipe relative to the vacuum pump. One end of the suction pipe is threadedly connected to the connecting threaded sleeve. The suction pipe is equipped with a solenoid valve for controlling the opening and closing of the air path. An anti-detachment disc is provided at one end of the suction pipe located inside the connecting threaded sleeve.

[0016] Preferably, the coating machine body is equipped with a controller, which is electrically connected to a vacuum gauge, a motor, a solenoid valve and a vacuum pump.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention mainly utilizes the cooperation between a driving component, a vacuum unit, an air extraction guide, and an isolation component. Under the guidance of the air extraction guide, the vacuum unit can perform air extraction on the coating machine body, thereby creating a negative pressure vacuum within the coating machine body. Simultaneously, the driving component can drive the anti-clogging structure of the isolation component to rotate, thereby enabling the anti-clogging structure to clean the micro-dust on the filter structure, preventing micro-dust from clogging the filter structure, thus ensuring the accuracy of the vacuum gauge and improving the efficiency of testing the sealing performance of the coating machine body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the coating machine body of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter structure and anti-clogging structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the vacuum unit structure of this utility model.

[0023] In the diagram: 1. Coating machine body; 2. Controller; 3. Vacuum gauge; 4. Mounting base; 5. Drive component; 51. Motor; 52. Rotating shaft; 53. Square hole; 54. First sealing ring; 6. Vacuum unit; 61. Vacuum pump; 62. Connecting air pipe; 63. Anti-detachment disc; 64. Connecting threaded sleeve; 65. Evacuation pipe; 66. Solenoid valve; 7. Evacuation guide; 71. Evacuation hood; 72. External thread; 73. Support ring; 74. Fixing cover; 75. Inner pressure ring; 76. Second sealing ring; 8. Isolation assembly; 81. Filter structure; 82. Mounting hole; 83. Connecting shaft; 84. Cleaning brush; 85. Third sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a vacuum coating machine sealing performance testing device, comprising: a coating machine body 1, an air extraction guide 7 disposed in the inner cavity of the coating machine body 1, and a vacuum gauge 3 for detecting vacuum degree installed at the upper end of the coating machine body 1.

[0026] An isolation component 8 for filtering micro-dust is installed on the air extraction guide 7. A drive component 5 for driving the isolation component 8 is provided on the outside of the coating machine body 1. The isolation component 8 is driven by the drive component 5 to reduce the blockage of the isolation component 8 by micro-dust.

[0027] A vacuum unit 6 is installed on the outside of the coating machine body 1 below the drive component 5, and the vacuum unit 6 is used to evacuate the coating machine body 1.

[0028] The isolation assembly 8 includes a filter structure 81 and an anti-clogging structure, the anti-clogging structure being rotatably mounted on one side of the filter structure 81;

[0029] The anti-clogging structure includes a docking shaft 83 and a cleaning brush plate 84. The cleaning brush plate 84 is fixedly connected to one end of the docking shaft 83. A mounting hole 82 for the docking shaft 83 is opened on one side of the filter structure 81. Two sets of third sealing rings 85 are sleeved on the outside of the docking shaft 83, and the two sets of third sealing rings 85 are respectively set at both ends of the mounting hole 82.

[0030] In this embodiment, the filter structure 81 in the isolation component 8 can filter micro dust, and the cleaning brush 84 of the anti-clogging structure can clean the filter structure 81 to reduce the clogging of micro dust. The two sets of third sealing rings 85 can effectively enhance the sealing of the installation position of the isolation component 8, avoid vacuum leakage, and ensure the accuracy of the sealing test environment.

[0031] The driving component 5 includes a motor 51. The outer side of the coating machine body 1 is provided with a mounting base 4 for the motor 51. The output shaft of the motor 51 is connected to a rotating shaft 52. One end of the rotating shaft 52 is provided with a square hole 53 for the docking shaft 83 to be inserted. The docking shaft 83 is set as a square column relative to the cleaning brush plate 84. Two sets of first sealing rings 54 are sleeved on the outer side of the rotating shaft 52. The coating machine body 1 is provided with a groove for the installation of the two sets of first sealing rings 54.

[0032] In a further preferred embodiment, the motor 51 of the drive component 5 drives the docking shaft 83 to rotate via the rotating shaft 52. The insertion of the square hole 53 and the square post ensures stable power transmission. The two sets of first sealing rings 54 on the outer side of the two rotating shafts 52 cooperate with the grooves on the coating machine body 1 to further improve the sealing of the connection between the drive component 5 and the machine body, preventing the vacuum environment from being destroyed.

[0033] The air extraction guide 7 includes an air extraction hood 71 fixedly connected to the upper end of the inner cavity of the coating machine body 1. A support ring 73 for supporting the filter structure 81 is fixedly connected to the inner wall of the air extraction hood 71. A fixed cover 74 is installed at the air inlet end of the air extraction hood 71. An external thread 72 for threaded installation of the fixed cover 74 is provided on the outer side of the air extraction hood 71.

[0034] Specifically, the suction hood 71 of the suction guide 7 provides stable support for the filter structure 81, the support ring 73 ensures that the filter structure 81 is firmly installed, and the fixing cover 74 is connected to the suction hood 71 through the external thread 72, which facilitates the disassembly and replacement of the filter structure 81 and improves the convenience of equipment maintenance.

[0035] The fixed cover 74 is an annular tubular structure. An inner pressure ring 75 inserted into the air extraction hood 71 is fixedly connected to the inner wall of the fixed cover 74. A second sealing ring 76 is provided between the inner pressure ring 75 and the filter structure 81.

[0036] In addition, the second sealing ring 76 between the inner pressure ring 75 and the filter structure 81 enhances the sealing at the connection between the fixed cover 74 and the filter structure 81, preventing air leakage during the air extraction process. At the same time, the inner pressure ring 75 effectively compresses the filter structure 81, ensuring its stability during operation.

[0037] The vacuum unit 6 includes a vacuum pump 61 and a connecting pipe, with one end of the connecting pipe connected to the suction hood 71 and the suction end of the vacuum pump 61 connected to the other end of the connecting pipe.

[0038] The vacuum pump 61 of the vacuum unit 6 is connected to the evacuation hood 71 through the connecting pipe, so as to achieve efficient vacuuming of the coating machine body 1, providing the necessary vacuum environment for sealing performance testing. The reasonable layout of the connecting pipe ensures that the evacuation path is unobstructed and improves the vacuuming efficiency.

[0039] The connecting pipeline includes a connecting air pipe 62, a connecting threaded sleeve 64, and a suction pipe 65. The connecting threaded sleeve 64 is slidably disposed at one end of the connecting air pipe 62 relative to the vacuum pump 61. One end of the suction pipe 65 is threadedly connected to the connecting threaded sleeve 64. A solenoid valve 66 for controlling the opening and closing of the air passage is provided on the suction pipe 65. An anti-detachment disc 63 is provided at one end of the suction pipe 65 located inside the connecting threaded sleeve.

[0040] Preferably, the connecting threaded sleeve 64 and the suction pipe 65 are threaded together, which facilitates the disassembly and maintenance of the connecting pipeline. The anti-detachment disc 63 can prevent the suction pipe 65 from falling out of the connecting threaded sleeve 64, thereby enhancing the stability of the pipeline connection. At the same time, the solenoid valve 66 can be used to flexibly control the air passage, which facilitates precise control of the suction process and improves operational flexibility.

[0041] A controller 2 is installed on the coating machine body 1. The controller 2 is electrically connected to the vacuum gauge 3, motor 51, solenoid valve 66 and vacuum pump 61 respectively. The controller 2 realizes centralized control of the vacuum gauge 3, motor 51, solenoid valve 66 and vacuum pump 61. It can automatically monitor the vacuum degree and adjust the operation of each component according to the test results, which improves the automation level and testing efficiency of the device, reduces human operation error, and ensures the accuracy and stability of the testing process. The vacuum gauge 3, motor 51, solenoid valve 66 and vacuum pump 61 are all common knowledge in the prior art and can be directly used by purchasing, so they will not be described in detail.

[0042] When testing the sealing performance of the coating machine body 1, the controller 2 starts the vacuum pump 61 of the vacuum unit 6. The vacuum pump 61 evacuates the interior of the coating machine body 1 through the connecting pipeline. During the evacuation process, the filter structure 81 in the evacuation hood 71 filters out micro-dust to prevent it from entering the vacuum pump 61 and affecting the operation of the equipment. At the same time, the controller 2 controls the motor 51 of the drive component 5 to work. The motor 51 drives the docking shaft 83 of the anti-clogging structure to rotate through the rotating shaft 52, so that the cleaning brush 84 cleans the filter structure 81, reducing blockage and ensuring evacuation efficiency. When the interior of the coating machine body 1 reaches a certain vacuum level, the vacuum gauge 3 detects the vacuum level and transmits the data to the controller 2. The controller 2 judges the sealing performance of the coating machine body 1 based on the change in vacuum level. If an abnormal vacuum level occurs, the detection can be interrupted in time by adjusting the solenoid valve 66 and the vacuum pump 61 to achieve accurate detection of the sealing performance of the coating machine.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the sealing performance of a vacuum coating machine, characterized in that, include: A coating machine body (1) is provided, and a vacuum gauge (3) for detecting vacuum degree is installed at the upper end of the coating machine body (1); An air extraction guide (7) is provided in the inner cavity of the coating machine body (1). An isolation component (8) for filtering micro dust is installed on the air extraction guide (7). A drive component (5) for driving the isolation component (8) is provided on the outer side of the coating machine body (1). The isolation component (8) is driven by the drive component (5) to reduce the blockage of the isolation component (8) by micro dust. A vacuum unit (6) is provided on the outside of the coating machine body (1) below the drive unit (5) to evacuate the coating machine body (1).

2. The vacuum coating machine sealing performance testing device according to claim 1, characterized in that: The isolation assembly (8) includes a filter structure (81) and an anti-clogging structure, wherein the anti-clogging structure is rotatably mounted on one side of the filter structure (81); The anti-clogging structure includes a docking shaft (83) and a cleaning brush plate (84). The cleaning brush plate (84) is fixedly connected to one end of the docking shaft (83). The filter structure (81) has a mounting hole (82) on one side for the docking shaft (83) to be installed. Two sets of third sealing rings (85) are sleeved on the outside of the docking shaft (83), and the two sets of third sealing rings (85) are respectively set at both ends of the mounting hole (82).

3. The vacuum coating machine sealing performance testing device according to claim 2, characterized in that: The driving component (5) includes a motor (51). The outer side of the coating machine body (1) is provided with a mounting base (4) for the motor (51). The output shaft of the motor (51) is connected to a rotating shaft (52). One end of the rotating shaft (52) is provided with a square hole (53) for the docking shaft (83) to be inserted. The docking shaft (83) is set as a square column relative to one end of the cleaning brush plate (84). Two sets of first sealing rings (54) are sleeved on the outer side of the rotating shaft (52). The coating machine body (1) is provided with a groove for the installation of the two sets of first sealing rings (54).

4. The vacuum coating machine sealing performance testing device according to claim 3, characterized in that: The air extraction guide (7) includes an air extraction hood (71) fixedly connected to the upper end of the inner cavity of the coating machine body (1). The inner wall of the air extraction hood (71) is fixedly connected to a support ring (73) that supports the filter structure (81). The air inlet end of the air extraction hood (71) is equipped with a fixed cover (74). The outer side of the air extraction hood (71) is provided with an external thread (72) for the fixed cover (74) to be threadedly installed.

5. The vacuum coating machine sealing performance testing device according to claim 4, characterized in that: The fixing cover (74) is an annular tube. An inner pressure ring (75) inserted into the air extraction hood (71) is fixedly connected to the inner wall of the fixing cover (74). A second sealing ring (76) is provided between the inner pressure ring (75) and the filter structure (81).

6. The vacuum coating machine sealing performance testing device according to claim 5, characterized in that: The vacuum unit (6) includes a vacuum pump (61) and a connecting pipe, with one end of the connecting pipe connected to the air extraction hood (71) and the air extraction end of the vacuum pump (61) connected to the other end of the connecting pipe.

7. The vacuum coating machine sealing performance testing device according to claim 6, characterized in that: The connecting pipeline includes a connecting air pipe (62), a connecting threaded sleeve (64), and a suction pipe (65). The connecting threaded sleeve (64) is slidably disposed at one end of the connecting air pipe (62) relative to the vacuum pump (61). One end of the suction pipe (65) is threadedly connected to the connecting threaded sleeve (64). The suction pipe (65) is provided with a solenoid valve (66) for controlling the opening and closing of the air passage. The end of the suction pipe (65) located inside the connecting threaded sleeve is provided with an anti-detachment disc (63).

8. The vacuum coating machine sealing performance testing device according to claim 7, characterized in that: The coating machine body (1) is equipped with a controller (2), which is electrically connected to a vacuum gauge (3), a motor (51), a solenoid valve (66) and a vacuum pump (61).

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