A pretreatment device of a vacuum coating machine

Abstract

The application relates to a pretreatment device of a vacuum coating machine, which comprises a water washing box, a guide roller is rotatably arranged in the water washing box, cleaning plates are arranged in the water washing box, the two cleaning plates are arranged on the opposite sides of the base material and are oppositely distributed, a brush is arranged on one side of the cleaning plate, and a reciprocating assembly for driving the cleaning plate to reciprocate along the conveying direction of the base material is arranged in the water washing box; the guide roller conveys the base material, the brush on the cleaning plate simultaneously performs contact brushing on the two side surfaces of the base material, meanwhile, the reciprocating assembly drives the cleaning plate to reciprocate along the conveying direction of the base material, so that the brush forms a reciprocating wiping action on the surface of the base material, the contact range and the friction frequency of the brush and the surface of the base material are expanded, and the application has the effect of improving the cleaning strength on the surface impurities of the base material.

Description

Technical Field

[0001] This application relates to the field of vacuum coating machines, and more particularly to a pretreatment apparatus for a vacuum coating machine. Background Technology

[0002] Vacuum coating machines are specialized equipment used in the production of electroplated aluminum.

[0003] In existing technologies, most employ roll-to-roll thermal evaporation vacuum coating machines. Their core structure includes an unwinding mechanism, a vacuum chamber, a thermal evaporation source, a winding mechanism, and a basic vacuum system. By heating, metal atoms are removed from the solid state and turned into vapor. The vacuum environment is then used to reduce the collision loss between the vapor and the air. Finally, the metal atoms are bonded to the substrate surface by the "van der Waals forces".

[0004] During vacuum coating, if there are impurities such as oil film on the substrate, a "separation layer" will be formed between the workpiece and the coating, which will severely weaken the adhesion and make the coating easy to peel off. Therefore, the substrate needs to be cleaned before vacuum coating. In the existing technology, solvent washing is usually used to treat the substrate. However, the cleaning effect of washing alone is limited and the cleaning effect on the surface of the substrate is not good. Utility Model Content

[0005] To address the limited cleaning effect of rinsing and washing, and the poor cleaning effect on the substrate surface, this application provides a pretreatment device for a vacuum coating machine.

[0006] The pretreatment device for a vacuum coating machine provided in this application adopts the following technical solution: A pretreatment device for a vacuum coating machine includes a washing tank, in which guide rollers for transporting substrates are rotatably mounted. Two cleaning plates are provided in the washing tank and are distributed parallel to the guide rollers. The two cleaning plates are located on opposite sides of the substrate and are distributed opposite to each other. One side of each cleaning plate is provided with bristles for brushing the substrate. A reciprocating assembly is provided in the washing tank to drive the cleaning plates to move back and forth along the substrate transport direction.

[0007] By adopting the above technical solution, the guide roller transports the substrate, and the bristles on the cleaning plate simultaneously brush both sides of the substrate. At the same time, the reciprocating component drives the cleaning plate to move back and forth along the substrate transport direction, so that the bristles form a reciprocating wiping action on the substrate surface, expanding the contact range and friction frequency between the bristles and the substrate surface, improving the cleaning power of impurities on the substrate surface, and reducing the risk of coating peeling and flaking.

[0008] Optionally, the reciprocating assembly includes a rotating component and a drive frame. The drive frame is slidably installed in the washing tank along the substrate transport direction. The rotating component is disposed in the washing tank and is used to drive the drive frame to move.

[0009] By adopting the above technical solution, the rotating component provides a power source to drive the frame to move back and forth, thereby driving the cleaning plate to move back and forth, resulting in a good driving effect.

[0010] Optionally, the rotating component includes a rotating motor and a rotating disk. The rotating disk is rotatably mounted on the inner wall of the washing tank. The rotating motor is mounted on the washing tank. The rotating disk is coaxially connected to the output shaft of the rotating motor. An eccentric wheel is provided on the rotating disk. A drive groove is provided on the drive frame. The eccentric wheel is slidably connected to the drive frame through the drive groove.

[0011] By adopting the above technical solution, the rotating motor drives the rotating disk to rotate. When the rotating disk rotates, it drives the eccentric wheel to make a circular motion. The eccentric wheel slides in the drive groove of the drive frame, thereby pushing the drive frame to make a reciprocating sliding motion along the substrate transport direction. The speed of the rotating motor can be adjusted, and the reciprocating frequency of the drive frame can be adjusted according to the impurities on the substrate surface to flexibly adapt to different cleaning needs.

[0012] Optionally, a guide wheel is provided on one side of the drive frame, and a guide groove is provided on the inner wall of the washing tank. The guide groove is distributed along the transport direction of the substrate, and the guide wheel is slidably connected to the washing tank through the guide groove.

[0013] By adopting the above technical solution, the guide wheel moves along the guide groove, providing guidance for the sliding of the drive frame and limiting the lateral displacement of the drive frame during the sliding process.

[0014] Optionally, the cleaning plate is slidably connected to the drive frame, and the cleaning plates on opposite sides move in opposite directions. The drive frame is provided with an adjusting member for adjusting the moving position of the cleaning plate.

[0015] By adopting the above technical solution, when facing substrates of different thicknesses, the cleaning plates on both sides are driven to move in opposite directions by the adjustment component, so that the bristles always maintain a certain contact pressure with the two sides of the substrate, reducing the problem of excessive pressure on the substrate caused by excessively thick substrates.

[0016] Optionally, the adjusting component includes an adjusting screw, guide blocks are provided at both ends of the cleaning plate along its length, a guide groove is provided on the drive frame, the adjusting screw is rotatably installed at the guide groove of the drive frame, the guide blocks are slidably connected to the drive frame through the guide groove, and the guide blocks are threadedly connected to the adjusting screw.

[0017] By adopting the above technical solution, rotating the adjusting screw drives the guide block to slide along the guide groove, thereby moving the cleaning plate and realizing the adjustment of the cleaning plate spacing, which is convenient to operate.

[0018] Optionally, the adjusting screw is provided with two opposite threads, and the guide blocks on both sides are respectively threaded to the adjusting screw at the two thread sections.

[0019] By adopting the above technical solution, when the adjusting screw is rotated, the guide blocks on both sides slide simultaneously in opposite directions, thereby driving the cleaning plates on both sides to move closer to or further away from the substrate in a synchronous driving operation.

[0020] Optionally, a cover plate is rotatably mounted on the top of the washing tank.

[0021] By adopting the above technical solution, the cover can be opened, making it easier for operators to observe the transportation of the substrate in the washing tank, the brushing status of the bristles, and the degree of pollution of the cleaning water, so as to promptly detect and deal with any abnormalities.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The guide roller transports the substrate, and the bristles on the cleaning plate brush the two sides of the substrate in contact. The reciprocating component drives the cleaning plate to move back and forth along the substrate transport direction, which expands the contact range and friction frequency between the bristles and the substrate surface, improves the cleaning power of impurities on the substrate surface, and reduces the risk of coating peeling and flaking. 2. The rotating motor drives the rotating disk to rotate, and the rotating disk drives the eccentric wheel to make a circular motion, which pushes the drive frame to make a reciprocating sliding motion along the substrate transport direction. The speed of the rotating motor is adjustable, and the reciprocating frequency of the drive frame can be adjusted according to the impurities on the substrate surface to flexibly adapt to different cleaning needs. 3. When dealing with substrates of different thicknesses, the cleaning plates on both sides are driven to move in opposite directions by the adjustment mechanism, so that the bristles always maintain a certain contact pressure with the two sides of the substrate, reducing the problem of excessive pressure on the substrate caused by excessively thick substrates. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of this application.

[0024] Figure 2 This is a cross-sectional view along the transport direction of the substrate in this application.

[0025] Figure 3 This is a schematic diagram of the exploded structure of the cleaning plate and the drive frame of this application.

[0026] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0027] Reference numerals in the attached drawings: 1. Washing tank; 11. Guide roller; 12. Guide groove; 13. Cover plate; 2. Cleaning plate; 21. Brush bristles; 22. Guide block; 3. Rotating component; 31. Rotating motor; 32. Rotating disc; 321. Eccentric wheel; 4. Drive frame; 41. Drive groove; 42. Guide wheel; 43. Guide groove; 5. Adjusting screw. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a pretreatment device for a vacuum coating machine, referring to... Figure 1 and Figure 2 The system includes a washing tank 1, guide rollers 11, cleaning plates 2, and a reciprocating assembly. A cover plate 13 is rotatably mounted on the top of the washing tank 1. The guide rollers 11 are rotatably mounted inside the washing tank 1 for transporting the substrate. Two cleaning plates 2 are provided and distributed parallel to the guide rollers 11 on opposite sides of the substrate. The cleaning plates 2 are distributed along the width direction of the washing tank 1. Brushes 21 are provided on one side of the cleaning plates 2 for brushing the substrate. The reciprocating assembly is located inside the washing tank 1 and drives the cleaning plates 2 to move back and forth along the substrate transport direction. When the guide rollers 11 transport the substrate for cleaning, the brushes 21 on the cleaning plates 2 contact and brush the two sides of the substrate. The reciprocating movement of the cleaning plates 2 allows the brushes 21 to contact the substrate surface, increasing friction, thereby better cleaning impurities and improving the cleaning power of the substrate surface.

[0030] Reference Figure 1 and Figure 2 The reciprocating assembly includes a rotating component 3 and a drive frame 4. The drive frame 4 is slidably installed inside the washing tank 1 along the substrate transport direction. A guide wheel 42 is provided on one side of the drive frame 4, and a guide groove 12 is provided on the inner wall of the washing tank 1. The guide groove 12 is distributed along the substrate transport direction, and the guide wheel 42 is slidably connected to the washing tank 1 through the guide groove 12. The guide wheel 42 moves along the guide groove 12 to guide the sliding of the drive frame 4 and limit the lateral displacement of the drive frame 4 during the sliding process.

[0031] Reference Figure 1 and Figure 2The rotating component 3 includes a rotating motor 31 and a rotating disk 32. The rotating disk 32 is rotatably mounted on the inner wall of the washing tank 1, and the rotating motor 31 is mounted on the washing tank 1. The rotating disk 32 is coaxially connected to the output shaft of the rotating motor 31. An eccentric wheel 321 is provided on the rotating disk 32, and a drive groove 41 is provided on the drive frame 4. The drive groove 41 is distributed in a direction perpendicular to the guide groove 12. The eccentric wheel 321 is slidably connected to the drive frame 4 through the drive groove 41. When the rotating motor 31 drives the rotating disk 32 to rotate, the rotating disk 32 drives the eccentric wheel 321 to perform a circular motion. The eccentric wheel 321 slides at the drive groove 41 of the drive frame 4, thereby pushing the drive frame 4 to perform a reciprocating sliding motion along the substrate transport direction.

[0032] Reference Figure 2 and Figure 3 The cleaning plate 2 is slidably connected to the drive frame 4. The cleaning plates 2 on opposite sides move in opposite directions. The drive frame 4 is equipped with an adjusting component. The adjusting component includes an adjusting screw 5. Guide blocks 22 are provided at both ends of the cleaning plate 2 along its length. The drive frame 4 is provided with a guide groove 43, which is parallel to the drive groove 41. The adjusting screw 5 is rotatably installed at the guide groove 43 of the drive frame 4. The guide blocks 22 are slidably connected to the drive frame 4 through the guide groove 43 and are threadedly connected to the adjusting screw 5. The adjusting screw 5 is provided with two opposite threads, and the guide blocks 22 on both sides are threadedly connected to the adjusting screw 5 at the two threaded sections. When the adjusting screw 5 is rotated, the guide blocks 22 on both sides slide simultaneously in opposite directions, thereby driving the cleaning plates 2 on both sides to move closer to or further away from the substrate, realizing the adjustment of the spacing between the cleaning plates 2. When facing substrates of different thicknesses, the bristles 21 always maintain a certain contact pressure with the two sides of the substrate.

[0033] The implementation principle of the pretreatment device of the vacuum coating machine in this application embodiment is as follows: the guide roller 11 transports the substrate, and the bristles 21 on the cleaning plate 2 contact the two sides of the substrate during transportation to brush the surface of the substrate. The rotating motor 31 drives the rotating disk 32 to rotate, and the rotating disk 32 drives the eccentric wheel 321 to make a circular motion. The eccentric wheel 321 slides in the driving groove 41 of the driving frame 4, pushing the driving frame 4 to make a reciprocating sliding motion along the substrate transportation direction, thereby driving the cleaning plate 2 to move back and forth along the substrate transportation direction, expanding the contact range and friction frequency between the bristles 21 and the substrate surface.

[0034] When facing substrates of different thicknesses, rotating the adjusting screw 5 causes the guide blocks 22 on both sides to slide simultaneously in opposite directions, thereby driving the cleaning plates 2 on both sides to move closer to or further away from the substrate, so that the bristles 21 always maintain a certain contact pressure with the two sides of the substrate.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pretreatment device for a vacuum coating machine, comprising a washing tank (1), wherein a guide roller (11) for transporting a substrate is rotatably mounted inside the washing tank (1), characterized in that: The washing tank (1) is provided with a cleaning plate (2). There are two cleaning plates (2) and they are distributed parallel to each other with the guide roller (11). The two cleaning plates (2) are located on opposite sides of the substrate and are distributed opposite to each other. One side of the cleaning plate (2) is provided with brush bristles (21) for brushing the substrate. The washing tank (1) is provided with a reciprocating component for driving the cleaning plate (2) to move back and forth along the substrate transport direction.

2. The pretreatment device for a vacuum coating machine according to claim 1, characterized in that: The reciprocating assembly includes a rotating component (3) and a drive frame (4). The drive frame (4) is slidably installed in the washing tank (1) along the substrate transport direction. The rotating component (3) is disposed in the washing tank (1) and is used to drive the drive frame (4) to move.

3. The pretreatment device for a vacuum coating machine according to claim 2, characterized in that: The rotating component (3) includes a rotating motor (31) and a rotating disk (32). The rotating disk (32) is rotatably mounted on the inner wall of the washing tank (1). The rotating motor (31) is mounted on the washing tank (1). The rotating disk (32) is coaxially connected to the output shaft of the rotating motor (31). An eccentric wheel (321) is provided on the rotating disk (32). A drive groove (41) is provided on the drive frame (4). The eccentric wheel (321) is slidably connected to the drive frame (4) through the drive groove (41).

4. The pretreatment device for a vacuum coating machine according to claim 2, characterized in that: A guide wheel (42) is provided on one side of the drive frame (4), and a guide groove (12) is provided on the inner side wall of the washing tank (1). The guide groove (12) is distributed along the transport direction of the substrate, and the guide wheel (42) is slidably connected to the washing tank (1) through the guide groove (12).

5. The pretreatment device for a vacuum coating machine according to claim 2, characterized in that: The cleaning plate (2) is slidably connected to the drive frame (4), and the cleaning plates (2) on opposite sides move in opposite or opposite directions. The drive frame (4) is provided with an adjusting member for adjusting the moving position of the cleaning plate (2).

6. The pretreatment device for a vacuum coating machine according to claim 5, characterized in that: The adjusting component includes an adjusting screw (5), guide blocks (22) are provided at both ends of the cleaning plate (2) in the length direction, and guide grooves (43) are provided on the drive frame (4). The adjusting screw (5) is rotatably installed at the guide groove (43) of the drive frame (4). The guide blocks (22) are slidably connected to the drive frame (4) through the guide groove (43). The guide blocks (22) are threadedly connected to the adjusting screw (5).

7. The pretreatment device for a vacuum coating machine according to claim 6, characterized in that: The adjusting screw (5) is provided with two opposite threads, and the guide blocks (22) on both sides are threadedly connected to the adjusting screw (5) at the two threads respectively.

8. The pretreatment device for a vacuum coating machine according to claim 1, characterized in that: The top of the washing tank (1) is rotatably mounted with a cover plate (13).

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