Anti-bubble vacuum coating machine

Abstract

The utility model relates to the technical field of coating machines, in particular to an anti-bubble vacuum coating machine which comprises a coating box, a vacuum manometer is arranged at the top of the coating box, hydraulic rods are fixedly connected to the top and the bottom of the coating box, a box door is arranged on the side face of each hydraulic rod, and the side face of each box door is fixedly connected with the corresponding hydraulic rod. An air extracting pump is fixedly mounted on the side face of the box door, an air outlet of the air extracting pump is fixedly connected with a connecting pipe, an air bag is arranged on the side face of the coating box, the connecting pipe is fixedly connected with the air bag, an abutting groove is formed in the side face of the coating box, and the side face of the air bag abuts against the abutting groove. The air tightness in the coating box is enhanced, and meanwhile, the vacuum environment in the coating process can be detected and adjusted to ensure that the vacuum degree in the coating box is always in a stable state, so that the situation that bubbles occur due to the fact that a film layer is not compact due to the insufficient vacuum degree is reduced, and the coating quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and in particular to a vacuum coating machine that prevents air bubbles. Background Technology

[0002] A vacuum coating machine is a device for depositing thin film materials on the surface of various substrates. Its working principle is primarily based on physical vapor deposition (PVD) technology. First, a highly controlled vacuum environment needs to be created within a vacuum chamber to minimize the interference of airborne impurities on the coating process. This is typically achieved by using a vacuum pump to evacuate the gas from the vacuum chamber to reach the required vacuum level. Then, under vacuum conditions, the film material is evaporated or decomposed into gaseous atoms or molecules through physical or chemical means. These atoms or molecules travel in the vacuum and deposit on the substrate surface to form a thin film. Vacuum coating technology has wide applications in many fields, such as optics, electronics, and aerospace.

[0003] A smart anti-bubble vacuum coating machine authorized in China (publication number CN 221797653 U) solves the problem that current vacuum coating machines lack anti-bubble functionality. This is achieved through the design of a first pipe, a second pipe, a vacuum cleaner, and in conjunction with a solenoid valve, output pipe, a first gear, a first rotating rod, a second gear, dehumidifying fan blades, bearings, a second rotating rod, and a drive motor. The problem arises because current vacuum coating machines lack anti-bubble functionality, and during use, moisture and dust within the machine's cavity cause bubbles to form on the surface of the coated item, resulting in defects and rendering the item unusable.

[0004] However, this patent has certain shortcomings in its application. During vacuum coating, if the vacuum level is insufficient, gas molecules can interfere with the thin film, resulting in a non-dense film layer and a tendency for bubbles to form. Maintaining the stability of the vacuum state is crucial to reducing bubbles. Existing vacuum coating machines lack an airtightness detection structure, making it impossible to monitor the vacuum during the coating process and ensure that the coating environment remains consistently vacuum. This leads to a non-dense film layer and a tendency for bubbles to form. In addition, due to the simple internal structure of the vacuum coating machine, the workpiece is prone to shaking during the coating process, resulting in uneven coating and reduced coating quality. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum coating machine that prevents air bubbles, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bubble-proof vacuum coating machine includes a coating chamber. A vacuum pressure gauge is installed on the top of the coating chamber. Hydraulic rods are fixedly connected to both the top and bottom of the coating chamber. A door is provided on the side of the hydraulic rod. The side of the door is fixedly connected to the hydraulic rod. An air pump is fixedly installed on the side of the door. A connecting pipe is fixedly connected to the air outlet of the air pump. An air bladder is provided on the side of the coating chamber. The connecting pipe is fixedly connected to the air bladder. An abutment groove is formed on the side of the coating chamber. The side of the air bladder abuts against the abutment groove.

[0008] As a preferred embodiment of this utility model, a sealing part is provided on the side of the box door, the outside of the sealing part is fitted with the inside of the coating box, a rotating groove is provided on the side of the sealing part, a mounting bracket is fixedly connected to the side of the box door, and a rotating assembly is provided on the side of the box door, the rotating assembly including a drive motor fixedly mounted on the top of the mounting bracket.

[0009] As a preferred embodiment of this utility model, a rotating rod is fixedly connected to the output end of the drive motor, and a fixed frame is fixedly connected to the outside of the rotating rod, with limit posts provided on the side of the fixed frame.

[0010] As a preferred embodiment of this utility model, the limiting post and the rotating groove are rotatably connected, a fixing rod is fixedly connected to the side of the fixing frame, and a clamping seat is fixedly connected to the side of the fixing rod.

[0011] As a preferred embodiment of this utility model, the side of the clamping seat is provided with a sliding groove and an adjusting groove, a limit rod is provided in the sliding groove, and an adjusting screw is provided in the adjusting groove.

[0012] As a preferred embodiment of this utility model, one end of the adjusting screw is rotatably connected to the inside of the clamping seat, the other end of the adjusting screw extends to the top of the clamping seat, and an adjusting disc is fixedly connected to the other end of the adjusting screw.

[0013] As a preferred embodiment of this utility model, a movable block is slidably connected in the adjusting groove, an anti-slip pad is provided at the bottom of the movable block, a threaded sleeve is provided through the top of the movable block, the threaded sleeve is externally threaded to the adjusting screw, and the movable block is slidably connected to the limiting rod.

[0014] As a preferred embodiment of this utility model, the coating box is equipped with a quick-drying lamp inside, a coating element is provided on the inner bottom wall of the coating box, and a support leg is provided at the bottom of the coating box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the combined use of a hydraulic rod, a vacuum gauge, an air pump, a connecting pipe, and an airbag enhances the airtightness of the coating chamber. Simultaneously, it allows for the detection and adjustment of the vacuum environment during the coating process, ensuring that the coating environment remains in a vacuum state. Before coating, the workpiece is clamped using a rotating assembly. Then, the hydraulic rod is controlled to retract until the side of the chamber door is flush with the coating chamber. Next, the air pump is turned on, and air is injected into the airbag through the connecting pipe, filling the gap between the airbag and the contact groove to ensure good airtightness during the coating process. Then, the vacuum pump evacuates the air from the coating chamber, creating a vacuum environment. During the coating process, the vacuum gauge monitors the vacuum environment within the coating chamber. If an abnormal vacuum occurs, the vacuum pump is activated to evacuate the chamber, ensuring a stable vacuum level. This reduces the occurrence of air bubbles and non-dense film layers due to insufficient vacuum, thus improving coating quality.

[0017] 2. In this utility model, by using a mounting frame, rotating assembly, coating element, and quick-drying lamp in combination, different specifications of parts can be coated during the coating process, thereby avoiding workpiece shaking during processing and increasing the accuracy of coating. At the same time, the use of quick-drying lamp can remove moisture from the surface of the workpiece before coating, avoiding incomplete coating and bubbles. First, the workpiece is placed on the side of the clamping seat, and then the adjusting plate is adjusted so that the adjusting plate drives the adjusting screw to rotate, thereby moving the moving block to the middle position until the anti-slip pad and the side of the workpiece are in contact, thereby fixing the workpiece and reducing the occurrence of uneven coating due to workpiece shaking. After the workpieces are fixed in sequence, the drive motor is turned on, and the drive motor controls the rotating rod to rotate, thereby driving the fixing frame and the workpiece to rotate, thus ensuring that the surface of the workpiece is coated evenly. Then, the quick-drying lamp is turned on to dehumidify the surface of the workpiece, so that the workpiece is in a dry state during coating. Then, the coating element is turned on to coat the surface of the workpiece, thereby improving the coating quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall operation of this utility model;

[0020] Figure 3 This is a schematic diagram of the cabinet door of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing component of this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping structure of this utility model.

[0023] In the diagram: 1. Coating chamber; 2. Hydraulic rod; 3. Vacuum pressure gauge; 4. Chamber door; 5. Mounting bracket; 6. Rotating assembly; 7. Rotating groove; 8. Air pump; 9. Connecting pipe; 10. Airbag; 11. Abutment groove; 12. Coating element; 13. Support leg; 14. Sealing part; 15. Quick-drying lamp; 601. Drive motor; 602. Rotating rod; 603. Fixing bracket; 604. Limiting post; 605. Clamping seat; 606. Slide groove; 607. Adjusting groove; 608. Moving block; 609. Anti-slip pad; 610. Threaded sleeve; 611. Adjusting screw; 612. Adjusting disc; 613. Fixing rod; 614. Limiting rod. Detailed Implementation

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

[0025] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0026] A bubble-proof vacuum coating machine includes a coating chamber 1, a sealing part 14 on the side of the chamber door 4, the outside of the sealing part 14 being in contact with the inside of the coating chamber 1, a rotating groove 7 on the side of the sealing part 14, a mounting bracket 5 fixedly connected to the side of the chamber door 4, a rotating assembly 6 on the side of the chamber door 4, a quick-drying lamp 15 inside the coating chamber 1, a coating element 12 on the inner bottom wall of the coating chamber 1, and a support leg 13 at the bottom of the coating chamber 1.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a vacuum pressure gauge 3 is installed on the top of the coating chamber 1. Hydraulic rods 2 are fixedly connected to both the top and bottom of the coating chamber 1. A chamber door 4 is installed on the side of the hydraulic rod 2. The side of the chamber door 4 is fixedly connected to the hydraulic rod 2. An air pump 8 is fixedly installed on the side of the chamber door 4. A connecting pipe 9 is fixedly connected to the air outlet of the air pump 8. An air bag 10 is installed on the side of the coating chamber 1. The connecting pipe 9 is fixedly connected to the air bag 10. An abutment groove 11 is opened on the side of the coating chamber 1. The side of the air bag 10 abuts against the abutment groove 11.

[0028] The use of hydraulic rod 2, vacuum gauge 3, air pump 8, connecting pipe 9, and airbag 10 enhances the airtightness of the coating chamber 1 and allows for the detection and adjustment of the vacuum environment during the coating process, ensuring that the coating environment remains in a vacuum state. Before coating, the workpiece is clamped by rotating component 6, and then hydraulic rod 2 is controlled to retract until the side of the chamber door 4 is in contact with the coating chamber 1. Then, the air pump 8 is turned on, and air is injected into the airbag 10 through connecting pipe 9, thereby creating a gap between the airbag 10 and the contact groove 11. The gaps are filled to ensure good airtightness during the coating process. Then, the air inside the coating chamber 1 is evacuated by a vacuum pump to create a vacuum environment. During the coating process, the vacuum environment inside the coating chamber 1 is monitored by a vacuum pressure gauge 3. When an abnormal vacuum occurs, the vacuum pump is controlled to evacuate the coating chamber 1 to ensure that the vacuum level inside the coating chamber 1 remains stable. This reduces the occurrence of air bubbles in the film due to insufficient vacuum, thereby improving the coating quality.

[0029] In this embodiment, as Figure 2 , Figure 4 and Figure 5 As shown, the rotating assembly 6 includes a drive motor 601 fixedly mounted on the top of the mounting bracket 5. A rotating rod 602 is fixedly connected to the output end of the drive motor 601. A fixing frame 603 is fixedly connected to the outside of the rotating rod 602. A limit post 604 is provided on the side of the fixing frame 603, and the limit post 604 is rotatably connected to the rotating groove 7. A fixing rod 613 is fixedly connected to the side of the fixing frame 603, and a clamping seat 605 is fixedly connected to the side of the fixing rod 613. A sliding groove 606 and an adjusting groove 607 are respectively opened on the side of the clamping seat 605. A limit rod 607 is provided within the sliding groove 606. 14. An adjusting screw 611 is provided in the adjusting groove 607. One end of the adjusting screw 611 is rotatably connected to the inside of the clamping seat 605. The other end of the adjusting screw 611 extends to the top of the clamping seat 605. An adjusting disc 612 is fixedly connected to the other end of the adjusting screw 611. A moving block 608 is slidably connected in the adjusting groove 607. An anti-slip pad 609 is provided at the bottom of the moving block 608. A threaded sleeve 610 is provided through the top of the moving block 608. The threaded sleeve 610 is externally threaded to the adjusting screw 611. The moving block 608 is slidably connected to the limiting rod 614.

[0030] The combination of mounting bracket 5, rotating assembly 6, coating element 12, and quick-drying lamp 15 allows for the application of different specifications of parts during the coating process, thus preventing workpiece wobbling and increasing coating accuracy. Simultaneously, the quick-drying lamp 15 removes moisture from the workpiece surface before coating, preventing incomplete coating and air bubbles. The workpiece is first placed on the side of clamping base 605, then the adjusting disc 612 is adjusted, causing the adjusting screw 611 to rotate, thereby moving the moving block 608 towards the center position until the anti-slip pad 60... 9. The parts are attached to the side of the plated parts to fix them in place, reducing uneven coating caused by shaking of the parts. After fixing the parts in sequence, the quick-drying lamp 15 is turned on to dehumidify the surface of the parts, ensuring that the parts are dry during coating. Then, the drive motor 601 is turned on, which controls the rotating rod 602 to rotate, thereby rotating the fixing frame 603 and the parts to ensure that all moisture on the surface of the parts is removed. Finally, the coating element 12 is turned on to coat the surface of the parts, thereby improving the coating quality.

[0031] The working process of this utility model is as follows: Before coating, the workpiece is placed on the side of the clamping seat 605. Then, the adjusting disc 612 is adjusted, causing the adjusting screw 611 to rotate, thus moving the moving block 608 to the center position until the anti-slip pad 609 is in contact with the side of the workpiece, thereby fixing the workpiece. Then, the hydraulic rod 2 is controlled to retract until the side of the chamber door 4 is in contact with the coating chamber 1. Next, the air pump 8 is turned on, and air is injected into the airbag 10 through the connecting pipe 9, filling the gap between the airbag 10 and the contact groove 11 to ensure good airtightness during the coating process. Finally, the vacuum pump evacuates the air from the coating chamber 1, allowing the coating to proceed smoothly. The chamber 1 is a vacuum environment. During the coating process, the vacuum environment inside the coating chamber 1 is monitored by the vacuum pressure gauge 3. When an abnormal vacuum occurs, the vacuum pump is controlled to work and evacuate the coating chamber 1 to ensure that the vacuum level inside the coating chamber 1 remains stable. This reduces the occurrence of air bubbles in the film layer due to insufficient vacuum, thus improving the coating quality. Then, the switch of the quick-drying lamp 15 is turned on, followed by the switch of the drive motor 601. The drive motor 601 controls the rotating rod 602 to rotate, thereby driving the fixed frame 603 and the workpiece to rotate. The quick-drying lamp 15 dehumidifies the surface of the workpiece, ensuring that the workpiece is dry during the coating process. Afterward, the coating element 12 is turned on to coat the surface of the workpiece, thereby improving the coating quality.

[0032] 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 bubble-proof vacuum coating machine, comprising a coating chamber (1), characterized in that: The top of the coating box (1) is equipped with a vacuum pressure gauge (3). The top and bottom of the coating box (1) are fixedly connected with hydraulic rods (2). The side of the hydraulic rod (2) is equipped with a box door (4). The side of the box door (4) is fixedly connected to the hydraulic rod (2). The side of the box door (4) is fixedly installed with a vacuum pump (8). The outlet of the vacuum pump (8) is fixedly connected with a connecting pipe (9). The side of the coating box (1) is equipped with an airbag (10). The connecting pipe (9) and the airbag (10) are fixedly connected. The side of the coating box (1) is provided with an abutment groove (11). The side of the airbag (10) abuts against the abutment groove (11).

2. The anti-bubble vacuum coating machine according to claim 1, characterized in that: The side of the box door (4) is provided with a sealing part (14), the outside of the sealing part (14) is in contact with the inside of the coating box (1), the side of the sealing part (14) is provided with a rotating groove (7), the side of the box door (4) is fixedly connected with a mounting bracket (5), the side of the box door (4) is provided with a rotating assembly (6), the rotating assembly (6) includes a drive motor (601) fixedly installed on the top of the mounting bracket (5).

3. The anti-bubble vacuum coating machine according to claim 2, characterized in that: The output end of the drive motor (601) is fixedly connected to a rotating rod (602), and a fixing frame (603) is fixedly connected to the outside of the rotating rod (602). A limit post (604) is provided on the side of the fixing frame (603).

4. The anti-bubble vacuum coating machine according to claim 3, characterized in that: The limiting post (604) and the rotating groove (7) are rotatably connected. A fixing rod (613) is fixedly connected to the side of the fixing frame (603), and a clamping seat (605) is fixedly connected to the side of the fixing rod (613).

5. The anti-bubble vacuum coating machine according to claim 4, characterized in that: The side of the clamping seat (605) is provided with a sliding groove (606) and an adjusting groove (607). A limit rod (614) is provided in the sliding groove (606), and an adjusting screw (611) is provided in the adjusting groove (607).

6. The anti-bubble vacuum coating machine according to claim 5, characterized in that: One end of the adjusting screw (611) is rotatably connected to the inside of the clamping seat (605), and the other end of the adjusting screw (611) extends to the top of the clamping seat (605). An adjusting disc (612) is fixedly connected to the other end of the adjusting screw (611).

7. A bubble-proof vacuum coating machine according to claim 5, characterized in that: A movable block (608) is slidably connected inside the adjusting groove (607). An anti-slip pad (609) is provided at the bottom of the movable block (608). A threaded sleeve (610) is provided through the top of the movable block (608). The threaded sleeve (610) is externally threaded to the adjusting screw (611). The movable block (608) is slidably connected to the limiting rod (614).

8. The anti-bubble vacuum coating machine according to claim 1, characterized in that: The coating box (1) is equipped with a quick-drying lamp (15) inside, a coating element (12) is provided on the inner bottom wall of the coating box (1), and a support leg (13) is provided at the bottom of the coating box (1).

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