Adjustable vacuum coating machine

Abstract

The utility model relates to the technical field of vacuum coating machines, in particular to an adjustable vacuum coating machine, which adopts the technical scheme that the adjustable vacuum coating machine comprises a machine body and a screw block, a reciprocating screw rod is movably mounted on the machine body, the screw block is in meshed connection with the reciprocating screw rod, a screw sleeve is movably mounted at the top of the screw block, and a screw rod is in meshed connection with the top of the screw sleeve. A bearing plate is fixedly mounted at the top of the screw rod, a material spraying plate is mounted in the machine body above the bearing plate, a material pump is mounted at the top of the machine body, a connecting rod is movably mounted on the material pump, paddles are mounted on the outer side of the section, located in the material pump, of the connecting rod in an annular array, and supporting plates are mounted on the two sides of the bottom of the machine body; a vacuum machine is installed at the bottom of the machine body on the opposite sides of the two supporting plates, and a controller is installed on the rear side of the vacuum machine. The film coating device has the advantages that the base material is driven to transversely move back and forth for film coating in the film coating process of the base material, the film coating range is expanded, and the film coating is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating machine technology, specifically an adjustable vacuum coating machine. Background Technology

[0002] A vacuum coating machine is a device used to apply thin film coatings to the surface of various materials. It deposits the target material onto the substrate surface through evaporation, sputtering, or chemical reaction in a vacuum environment to improve its performance, appearance, and durability. This technology is widely used in the electronics, optics, medical, automotive, and decoration industries. Vacuum coating machines have advantages such as high-precision control, uniform coverage, energy saving, and environmental protection. They can meet the coating needs of different materials such as metals, plastics, and glass, improve product quality, and extend service life.

[0003] The coating range of the coating mechanism inside a vacuum coating machine is limited. During the coating process, if the base area to be coated is large and the lateral position of the substrate is fixed, the coating material sprayed from the spray plate may not be able to evenly cover the surface of the substrate, especially the edge area. At the same time, the coating thickness may be uneven, with some areas being too thin or too thick, affecting product performance (such as the light transmittance or reflectance of optical coatings). For substrates that are not planar or have complex shapes (such as curved surfaces or uneven structures), fixing the lateral position may result in some areas not being covered by the coating material. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable vacuum coating machine, which has the advantage of moving the substrate back and forth laterally during the coating process, thereby expanding the coating range and making the coating more uniform. This solves the problem that the coating range inside the vacuum coating machine is limited and cannot uniformly coat the material onto the substrate surface.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable vacuum coating machine, comprising a machine body and a screw block, wherein a reciprocating lead screw is movably mounted on the machine body, the screw block is meshed with the reciprocating lead screw, a screw sleeve is movably mounted on the top of the screw block, a screw rod is meshed with the top of the screw sleeve, a support plate is fixedly mounted on the top of the screw rod, a spray plate is installed inside the machine body above the support plate, a material pump is installed on the top of the machine body, a connecting rod is movably mounted on the material pump, and paddles are installed in a circular array on the outer side of a section inside the material pump on the connecting rod, support plates are installed on both sides of the bottom of the machine body, a vacuum machine is installed on the bottom of the machine body on the opposite side of the two support plates, and a controller is installed on the rear side of the vacuum machine.

[0006] When using an adjustable vacuum coating machine according to this technical solution, two support plates provide support for the machine body. The substrate to be coated is placed on top of the support plate, and two cylinders push it to move in opposite directions. Two clamping plates hold and fix the substrate. A toothed ring rotating sleeve is used, and the screw moves within the rotating sleeve. The screw drives the substrate to rise and fall through the support plate to adjust the height, adjusting the distance between the substrate and the spray plate to a suitable level. The machine door is closed, and the vacuum machine extracts the air from the machine body to maintain a vacuum inside the machine. The motor drives the connecting rod to rotate through the transmission structure. The connecting rod drives the paddle inside the material pump to rotate. The paddle generates suction when it rotates. The suction pipe at the top of the material pump is connected to the material conveying pipe through a flange. The material pump draws in the material through the suction pipe and then conveys the material to the inside of the spray plate through the discharge pipe. The spray plate sprays the material onto the surface of the substrate on top of the support plate. When the connecting rod rotates, it drives the reciprocating screw to rotate through the belt. The screw block moves laterally back and forth on the rotating reciprocating screw. The screw block drives the substrate to move laterally back and forth for coating.

[0007] Preferably, a door is movably installed on the rear side of the machine body, and an observation window is embedded in the door. The door adopts a hinged design and is equipped with a high-pressure resistant glass observation window, which can monitor the coating process in real time while maintaining the airtightness of the vacuum environment. The observation window is treated with multiple layers of coating to enhance light transmittance and scratch resistance. Together with the rubber sealing ring on the edge of the door, it ensures the stability of the internal pressure of the vacuum chamber.

[0008] Preferably, a toothed ring is installed on the outer side of the threaded sleeve. The toothed ring allows the threaded sleeve to be rotated, and the screw moves within the rotating threaded sleeve. During the lifting and lowering process, the screw drives the support plate to move, thereby adjusting the height of the support plate.

[0009] Preferably, cylinders are installed on both the front and rear sides of the top of the support plate, and clamping plates are installed on the opposite ends of the two cylinders. The pneumatic clamping plates are opened and closed synchronously by the cylinders, which can quickly clamp or release the substrate. The surface of the clamping plates is covered with a high-temperature resistant silicone layer, which can provide flexible clamping force to prevent scratches on the substrate and withstand the high-temperature environment during the coating process. By adjusting the cylinder air pressure, it can adapt to the fixing requirements of various materials such as glass, metal sheets, and plastics, ensuring the uniformity of coating.

[0010] Preferably, a fixing rod is installed at the bottom of the support plate, and a fixing sleeve is installed at the top of the screw block, with the bottom of the fixing rod inserted into the fixing sleeve. The fixing rod and the fixing sleeve adopt a clearance fit design, which can provide rigid support for the support plate in the vertical direction, while allowing the support plate to float slightly in the horizontal plane, compensating for vibration errors during equipment operation. This structure effectively disperses the impact force of the sprayed material during the coating process, prevents the screw block and reciprocating lead screw from wearing due to off-center load, and extends the service life of key transmission components.

[0011] Preferably, a motor is installed on the top of the machine body on one side of the material pump. The top of the motor transmission structure is fixedly connected to the connecting rod, and the connecting rod is movably connected to the reciprocating screw via a belt. The motor drives the connecting rod to rotate through the transmission structure. When the connecting rod rotates, it drives the reciprocating screw to rotate synchronously via the belt. The belt drive has an overload buffer function to avoid equipment damage due to jamming, and at the same time reduces operating noise.

[0012] Preferably, the material pump is equipped with a suction pipe at the top, a flange at the top of the suction pipe, and a discharge pipe at the bottom of the material pump. The bottom of the discharge pipe passes through the top of the machine body and is fixedly connected to the spray plate. The flange-connected suction pipe facilitates quick replacement of coating material containers of different specifications. The discharge pipe adopts a tapered flow channel design to reduce material flow resistance. The spray plate has a built-in micron-level nozzle array, which atomizes the coating material and evenly sprays it onto the substrate surface through the pressure of the material pump. Combined with the molecular free path effect under vacuum, a dense and defect-free thin film structure is formed, significantly improving the adhesion and surface smoothness of the coating layer.

[0013] Preferably, a limiting rod is fixedly installed inside the machine body, and a limiting hole is formed in the screw block, through which the limiting rod passes. The sliding fit between the limiting rod and the limiting hole strictly constrains the movement trajectory of the screw block, preventing radial displacement or overturning of the screw block when the reciprocating screw rotates. The surface of the limiting rod is hardened and coated with a lubricating coating, which ensures guiding accuracy and reduces friction loss. This structure further optimizes the motion stability of the support plate and ensures the consistency of the coating thickness throughout the substrate.

[0014] Preferably, a collection drawer is movably installed inside the machine body below the screw block, and a handle is installed on the rear side of the collection drawer. The drawer-type collection drawer is located at the bottom of the vacuum chamber and is used to collect undeposited coating material particles and waste generated during cleaning and maintenance. The collection drawer is made of anti-static material to prevent particle adsorption and residue. The handle is ergonomically designed and supports one-handed pull-out operation. Combined with the negative pressure environment of the vacuum machine, this effectively reduces material waste while maintaining the cleanliness of the chamber, meeting the process requirements of high-precision coating.

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

[0016] This invention utilizes a belt and a reciprocating screw. A motor drives a connecting rod to rotate via a transmission structure. The connecting rod, in turn, drives the paddles inside the material pump to rotate. The rotating paddles generate suction. A suction pipe at the top of the material pump is connected to a material conveying pipe via a flange. The material pump draws in material through the suction pipe and then conveys it to the inside of the spray plate through the discharge pipe. The spray plate sprays the material onto the substrate surface on the top of the support plate. As the connecting rod rotates, it drives the reciprocating screw to rotate via the belt. A screw block moves laterally back and forth on the rotating reciprocating screw, causing the substrate to move laterally back and forth for coating. This achieves the effect of expanding the coating area and making the coating more uniform during the coating process by moving the substrate laterally back and forth. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0018] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the screw block and bearing plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the screw block and bearing plate structure of this utility model.

[0022] In the diagram: 1. Machine body; 2. Machine door; 3. Observation window; 4. Support plate; 5. Motor; 6. Material pump; 7. Discharge pipe; 8. Connecting rod; 9. Suction pipe; 10. Flange; 11. Belt; 12. Controller; 13. Vacuum machine; 14. Reciprocating screw; 15. Handle; 16. Collection drawer; 17. Limiting rod; 18. Fixing sleeve; 19. Bearing plate; 20. Clamping plate; 21. Spraying plate; 22. Cylinder; 23. Screw block; 24. Limiting hole; 25. Gear ring; 26. Screw sleeve; 27. Fixing rod; 28. Screw. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figures 1-5 As shown, this utility model proposes an adjustable vacuum coating machine, including a body 1 and a screw block 23. A door 2 is movably installed on the rear side of the body 1, with an observation window 3 embedded in the door 2. A reciprocating screw 14 is movably installed on the body 1, and the screw block 23 is meshed with the reciprocating screw 14. A limit rod 17 is fixedly installed inside the body 1. A limit hole 24 is formed in the screw block 23, through which the limit rod 17 passes. A screw sleeve 26 is movably installed on the top of the screw block 23, with a toothed ring 25 installed on the outer side of the screw sleeve 26. A screw 28 is meshed with the top of the screw sleeve 26, and a bearing plate 19 is fixedly installed on the top of the screw 28. Cylinders 22 are installed on both the front and rear sides of the top of the bearing plate 19, and clamping plates 20 are installed at opposite ends of the two cylinders 22. A fixing rod 27 is installed at the bottom of the bearing plate 19, and a fixing sleeve 18 is installed on the top of the screw block 23. The bottom of the fixed rod 27 is inserted into the fixed sleeve 18. The spray plate 21 is installed inside the body 1 above the bearing plate 19. The material pump 6 is installed on the top of the body 1. The suction pipe 9 is installed on the top of the material pump 6. The flange 10 is installed on the top of the suction pipe 9. The discharge pipe 7 is installed at the bottom of the material pump 6. The bottom of the discharge pipe 7 passes through the top of the body 1 and is fixedly connected to the spray plate 21. The material pump 6 is movably installed with a connecting rod 8. The top of the body 1 on one side of the material pump 6 is installed with a motor 5. The top of the transmission structure of the motor 5 is fixedly connected to the connecting rod 8. The connecting rod 8 is movably connected to the reciprocating screw 14 through the belt 11. The connecting rod 8 is located inside the material pump 6 and has blades installed in a ring array on the outer side. Support plates 4 are installed on both sides of the bottom of the body 1. A vacuum machine 13 is installed on the bottom of the body 1 on the opposite side of the two support plates 4. A controller 12 is installed on the rear side of the vacuum machine 13.

[0029] In this embodiment, two support plates 4 provide support for the machine body 1. The substrate to be coated is placed on top of the support plate 19. Two cylinders 22 push the substrate to move in opposite directions. Two clamping plates 20 clamp and fix the substrate. The toothed ring 25 rotates the screw sleeve 26, and the screw 28 moves within the rotating screw sleeve 26. The screw 28 drives the substrate to rise and fall through the support plate 19 to adjust the height, adjusting the distance between the substrate and the spray plate 21 to a suitable level. The machine door 2 is closed, and the vacuum machine 13 extracts the air from the machine body 1 to maintain a vacuum inside the machine body 1. The motor 5 drives the substrate through the transmission structure. The connecting rod 8 rotates, which drives the paddle inside the material pump 6 to rotate. The paddle generates suction when it rotates. The suction pipe 9 at the top of the material pump 6 is connected to the material conveying pipe through the flange 10. The material pump 6 draws in the material through the suction pipe 9 and then conveys the material to the inside of the spray plate 21 through the discharge pipe 7. The spray plate 21 sprays the material onto the substrate surface on the top of the support plate 19. When the connecting rod 8 rotates, it drives the reciprocating screw 14 to rotate through the belt 11. The screw block 23 moves back and forth laterally on the rotating reciprocating screw 14. The screw block 23 drives the substrate to move back and forth laterally for coating.

[0030] Example 2

[0031] like Figures 1-5 As shown, the adjustable vacuum coating machine proposed in this utility model, compared with the first embodiment, further includes: a collection drawer 16, the collection drawer 16 is movably installed inside the machine body 1 below the screw block 23, and a handle 15 is installed on the rear side of the collection drawer 16.

[0032] In this embodiment, the material particles falling inside the machine body 1 can be collected by the collection tray 16. The collection tray 16 can be pulled out from inside the machine body 1 using the handle 15 to process the collected material particles.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable vacuum coating machine, comprising a body (1) and a screw block (23), characterized in that: The machine body (1) is movably mounted with a reciprocating lead screw (14). The screw block (23) is meshed with the reciprocating lead screw (14). The top of the screw block (23) is movably mounted with a screw sleeve (26). The top of the screw sleeve (26) is meshed with a screw rod (28). The top of the screw rod (28) is fixedly mounted with a bearing plate (19). The machine body (1) above the bearing plate (19) is equipped with a spray plate (21). The top of the machine body (1) is equipped with a material pump (6). The material pump (6) is movably mounted with a connecting rod (8). The connecting rod (8) is located inside the material pump (6) and has blades arranged in a ring array on the outer side of a section of the connecting rod (8). Support plates (4) are installed on both sides of the bottom of the machine body (1). A vacuum machine (13) is installed on the bottom of the machine body (1) on the opposite side of the two support plates (4). A controller (12) is installed on the rear side of the vacuum machine (13).

2. The adjustable vacuum coating machine according to claim 1, characterized in that: The machine body (1) has a door (2) installed on its rear side, and an observation window (3) is embedded in the door (2).

3. The adjustable vacuum coating machine according to claim 1, characterized in that: A toothed ring (25) is installed on the outside of the threaded sleeve (26).

4. An adjustable vacuum coating machine according to claim 1, characterized in that: The bearing plate (19) is equipped with cylinders (22) on both the front and rear sides of the top, and clamping plates (20) are installed on the opposite ends of the two cylinders (22).

5. An adjustable vacuum coating machine according to claim 4, characterized in that: The bottom of the bearing plate (19) is equipped with a fixing rod (27), and the top of the screw block (23) is equipped with a fixing sleeve (18). The bottom of the fixing rod (27) is inserted into the fixing sleeve (18).

6. An adjustable vacuum coating machine according to claim 1, characterized in that: A motor (5) is installed on the top of the body (1) on one side of the material pump (6). The top of the transmission structure of the motor (5) is fixedly connected to the connecting rod (8). The connecting rod (8) is movably connected to the reciprocating screw (14) through the belt (11).

7. An adjustable vacuum coating machine according to claim 1, characterized in that: The material pump (6) is equipped with a suction pipe (9) at the top, a flange (10) at the top of the suction pipe (9), and a discharge pipe (7) at the bottom of the material pump (6). The bottom of the discharge pipe (7) passes through the top of the machine body (1) and is fixedly connected to the spray plate (21).

8. An adjustable vacuum coating machine according to claim 1, characterized in that: The machine body (1) is fixedly installed with a limiting rod (17), and the screw block (23) has a limiting hole (24), through which the limiting rod (17) passes.

9. An adjustable vacuum coating machine according to claim 1, characterized in that: A collection tray (16) is movably installed inside the body (1) below the screw block (23), and a handle (15) is installed on the rear side of the collection tray (16).

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