A coating device for a dual-bandpass filter

Abstract

This utility model relates to the technical field of coating equipment and discloses a coating device for dual bandpass filters. It includes a main body of the coating equipment, a side box on one side of the main body, an evaporation source at the lower end of the vacuum coating chamber of the main body, a U-shaped clamping frame inside the vacuum coating chamber above the evaporation source, a drive rotation mechanism on the outside of the U-shaped clamping frame, and a plate clamped inside the U-shaped clamping frame. The plate has clamps for fixing the filters. This dual bandpass filter coating device, by using clamps, allows the drive screw to rotate synchronously when the handle is turned. When any two clamping strips at either end of the drive screw approach each other, the filters can be effectively clamped and fixed using arc-shaped clamps. This eliminates the need for multiple clamping components to clamp and fix multiple filters individually, making the overall operation simple, time-saving, and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, specifically a coating device for a dual-bandpass filter. Background Technology

[0002] A dual-bandpass filter is an optical element that allows light to pass through in two specific wavelength ranges while blocking or suppressing light in other wavelength ranges.

[0003] The production process of dual bandpass filters requires the use of a coating device. Existing coating devices generally require multiple sets of clamps to hold multiple filters one by one, making the overall operation cumbersome, time-consuming, and labor-intensive, increasing the workload of workers. Therefore, there is a need to provide a coating device for dual bandpass filters to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a coating device for a dual-bandpass filter, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a coating device for a dual bandpass filter, comprising a coating equipment body, a side box provided on one side of the coating equipment body, an evaporation source provided at the lower end of the vacuum coating chamber of the coating equipment body, a U-shaped frame provided inside the vacuum coating chamber of the coating equipment body and above the evaporation source, a drive rotation mechanism provided on the outside of the U-shaped frame, a plate being snapped into the inside of the U-shaped frame, and a clamp for fixing the filter provided on the plate;

[0006] The plate includes a base plate and a cover plate, and the cover plate and the base plate are provided with a plurality of corresponding circular holes arranged in an array;

[0007] The clamp includes a drive screw and a clamping bar. The drive screw is rotatably disposed at the center of the base plate, and the clamping bar is threadedly connected to the drive screw.

[0008] Preferably, the drive rotation mechanism includes a drive motor, a reducer, a drive shaft, and a driven shaft. The drive motor and the reducer are both located inside the side box. One end of the drive shaft is connected to the U-shaped clamping frame, and the other end of the drive shaft away from the U-shaped clamping frame passes through the side wall of the vacuum coating chamber of the coating equipment body and is connected to the reducer.

[0009] Preferably, the output end of the drive motor is connected to the reducer via a rotating shaft, the driven shaft is located on the side of the U-shaped frame away from the drive shaft, and the end of the driven shaft away from the U-shaped frame is rotatably connected to the inner wall of the vacuum coating chamber of the coating equipment body.

[0010] Preferably, the cover plate is disposed on the upper end of the base plate, the base plate has a movable groove, and the clamping strip is slidably disposed inside the movable groove.

[0011] Preferably, the end of the drive screw is rotatably connected to the inner wall of the movable groove, the front end of the drive screw is provided with a handle, and the outer surface of the drive screw is provided with four threads, with adjacent threads on the outer surface of the drive screw having opposite directions.

[0012] Preferably, four clamping bars are provided, and the drive screw is threadedly connected to the four clamping bars respectively through four sections of thread.

[0013] Preferably, the clamping bar is provided with an arc-shaped clamp for clamping the filter, and a limiting groove is formed at the center of the inner side of the arc-shaped clamp.

[0014] Preferably, positioning screws are provided on both sides of the U-shaped card frame, and positioning screw holes that cooperate with the positioning screws are opened on both sides of the outer surface of the base plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The coating device for the dual bandpass filter is equipped with a clamp. Turning the handle can effectively drive the drive screw to rotate synchronously. When any two clamping bars at either end of the drive screw approach each other, the filter can be effectively clamped and fixed by the arc-shaped clamping piece. It does not require multiple clamping components to clamp and fix multiple filters one by one. The overall operation is simple, time-saving and labor-saving.

[0017] 2. The coating device for the dual bandpass filter is equipped with a drive rotation mechanism. The drive motor works and, under the deceleration action of the reducer, can effectively drive the drive shaft to rotate. In turn, with the cooperation of the driven shaft, the U-shaped frame and the plate can be effectively rotated, ensuring the uniformity of the coating. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the coating device for the dual-bandpass filter of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the main body and side box of the coating equipment of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the U-shaped card frame and the drive rotation mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the plate and clamp of this utility model;

[0022] Figure 5 This is a schematic diagram of the base plate and clamp of this utility model.

[0023] In the diagram: 1. Main body of the coating equipment; 101. Side box; 2. U-shaped frame; 201. Positioning screw; 3. Drive rotation mechanism; 301. Drive motor; 302. Reducer; 303. Drive shaft; 304. Driven shaft; 4. Evaporation source; 5. Plate; 501. Base plate; 502. Cover plate; 503. Round hole; 504. Movable groove; 6. Fixture; 601. Drive screw; 602. Handle; 603. Clamping bar; 604. Arc-shaped clamping piece. 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 1-5 A coating device for a dual-bandpass filter includes a coating equipment body 1, a side box 101 on one side of the coating equipment body 1, an evaporation source 4 at the lower end of the vacuum coating chamber of the coating equipment body 1, a U-shaped frame 2 inside the vacuum coating chamber of the coating equipment body 1 and above the evaporation source 4, a drive rotation mechanism 3 on the outside of the U-shaped frame 2, a plate 5 inside the U-shaped frame 2, and a clamp 6 for fixing the filter on the plate 5.

[0026] Plate 5 includes a base plate 501 and a cover plate 502, and a plurality of corresponding circular holes 503 are arranged on the cover plate 502 and the base plate 501.

[0027] The clamp 6 includes a drive screw 601 and a clamping bar 603. The drive screw 601 is rotatably disposed at the center of the base plate 501, and the clamping bar 603 is threadedly connected to the drive screw 601.

[0028] The drive rotation mechanism 3 includes a drive motor 301, a reducer 302, a drive shaft 303, and a driven shaft 304. The drive motor 301 and the reducer 302 are both located inside the side box 101. One end of the drive shaft 303 is connected to the U-shaped frame 2, and the end of the drive shaft 303 away from the U-shaped frame 2 passes through the side wall of the vacuum coating chamber of the coating equipment body 1 and is connected to the reducer 302. The output end of the drive motor 301 is connected to the reducer 302 through a rotating shaft. The driven shaft 304 is located on the side of the U-shaped frame 2 away from the drive shaft 303, and the end of the driven shaft 304 away from the U-shaped frame 2 is rotatably connected to the inner wall of the vacuum coating chamber of the coating equipment body 1. When the drive motor 301 works, under the deceleration action of the reducer 302, the drive shaft 303 can be effectively driven to rotate. In turn, with the cooperation of the driven shaft 304, the U-shaped frame 2 and the plate 5 can be effectively rotated, ensuring the uniformity of the coating.

[0029] The cover plate 502 is located on the upper end of the base plate 501. The base plate 501 has a movable groove 504. The clamping bar 603 is slidably disposed inside the movable groove 504. By providing the movable groove 504 on the base plate 501, it is convenient to install the clamp 6 and to make the clamping bar 603 slidable.

[0030] The drive screw 601 is rotatably connected to the inner wall of the movable groove 504 at its end. A handle 602 is provided at the front end of the drive screw 601. Four threads are formed on the outer surface of the drive screw 601, with adjacent threads on the outer surface facing opposite directions. Four clamping bars 603 are provided, and the drive screw 601 is threadedly connected to each of the four clamping bars 603 via the four threads. Each clamping bar 603 has an arc-shaped clamping piece 604 for clamping the filter. A limiting slot is formed at the center of the inner side of the arc-shaped clamping piece 604. When clamping the filter, a base plate is provided. The upper array is equipped with several support columns with a diameter smaller than that of the filter. The plate 5 is placed on the upper surface of the base plate. At this time, the support columns are located inside the circular hole 503. When the filter is placed inside the circular hole 503 and located on the upper surface of the support column, the drive screw 601 can be effectively driven to rotate synchronously by rotating the handle 602. Then, when any two clamping bars 603 at either end of the drive screw 601 approach each other, the filter can be effectively clamped and fixed by the arc-shaped clamp 604. It is not necessary to clamp and fix multiple filters one by one through multiple sets of clamping components. The overall operation is simple, time-saving and labor-saving.

[0031] The U-shaped frame 2 is equipped with positioning screws 201 on both sides, and the outer surface of the base plate 501 is provided with positioning screw holes that cooperate with the positioning screws 201 on both sides. When the plate 5 is inserted into the U-shaped frame 2, the positioning screws 201 are rotated and tightened so that the front end of the positioning screws 201 is screwed into the positioning screw holes, which effectively ensures the stability of the plate 5. The plate 5 is also easy to disassemble later, making it easy to remove the coated filter.

[0032] The working principle is as follows: A movable groove 504 is provided on the base plate 501 to facilitate the installation of the clamp 6 and to allow the clamping strip 603 to slide. When clamping the filter, a base plate is set up, and several support columns with a diameter smaller than the diameter of the filter are arranged in an array on the base plate. The plate 5 is placed on the upper surface of the base plate. At this time, the support columns are located inside the circular hole 503. When the filter is placed inside the circular hole 503 and located on the upper surface of the support column, the drive screw 601 can be effectively driven to rotate synchronously by rotating the handle 602. Then, when the two clamping strips 603 of any two ends of the drive screw 601 are close to each other, the filter can be effectively clamped and fixed by the arc-shaped clamping piece 604. It is not necessary to clamp and fix multiple filters one by one through multiple sets of clamping components. The overall operation is simple, time-saving and labor-saving.

[0033] Furthermore, after the plate 5 is inserted into the U-shaped frame 2, the positioning screw 201 is rotated and tightened so that the front end of the positioning screw 201 is screwed into the positioning screw hole, which effectively ensures the stability of the plate 5. Then, the drive motor 301 works, and under the deceleration action of the reducer 302, the drive shaft 303 can be effectively driven to rotate. Then, with the cooperation of the driven shaft 304, the U-shaped frame 2 and the plate 5 can be effectively rotated, ensuring the uniformity of the coating.

[0034] 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 coating apparatus for a dual-bandpass filter, comprising a coating equipment body (1), wherein a side chamber (101) is provided on one side of the coating equipment body (1), and an evaporation source (4) is provided at the lower end of the vacuum coating chamber of the coating equipment body (1), characterized in that, The vacuum coating chamber of the coating equipment body (1) is provided with a U-shaped frame (2) above the evaporation source (4). A drive rotation mechanism (3) is provided on the outside of the U-shaped frame (2). A plate (5) is snapped into the U-shaped frame (2). A clamp (6) for fixing the filter is provided on the plate (5). The plate (5) includes a base plate (501) and a cover plate (502), and the cover plate (502) and the base plate (501) are provided with a plurality of corresponding circular holes (503); The clamp (6) includes a drive screw (601) and a clamping bar (603). The drive screw (601) is rotatably disposed at the center of the base plate (501), and the clamping bar (603) is threadedly connected to the drive screw (601).

2. The coating apparatus for a dual-bandpass filter according to claim 1, characterized in that, The drive rotation mechanism (3) includes a drive motor (301), a reducer (302), a drive shaft (303), and a driven shaft (304). The drive motor (301) and the reducer (302) are both located inside the side box (101). One end of the drive shaft (303) is connected to the U-shaped frame (2), and the other end of the drive shaft (303) away from the U-shaped frame (2) passes through the side wall of the vacuum coating chamber of the coating equipment body (1) and is connected to the reducer (302).

3. The coating apparatus for a dual-bandpass filter according to claim 2, characterized in that, The output end of the drive motor (301) is connected to the reducer (302) via a rotating shaft. The driven shaft (304) is located on the side of the U-shaped frame (2) away from the drive shaft (303). The end of the driven shaft (304) away from the U-shaped frame (2) is rotatably connected to the inner wall of the vacuum coating chamber of the coating equipment body (1).

4. The coating apparatus for a dual-bandpass filter according to claim 1, characterized in that, The cover plate (502) is disposed on the upper end of the base plate (501), and the base plate (501) is provided with a movable groove (504), and the clamping bar (603) is slidably disposed inside the movable groove (504).

5. The coating apparatus for a dual-bandpass filter according to claim 4, characterized in that, The end of the drive screw (601) is rotatably connected to the inner wall of the movable groove (504). A handle (602) is provided at the front end of the drive screw (601). Four threads are provided on the outer surface of the drive screw (601). The directions of two adjacent threads on the outer surface of the drive screw (601) are opposite.

6. The coating apparatus for a dual-bandpass filter according to claim 5, characterized in that, The clamping bars (603) are provided in four sections, and the drive screw (601) is threadedly connected to the four clamping bars (603) through four sections of thread.

7. The coating apparatus for a dual-bandpass filter according to claim 6, characterized in that, The clamping bar (603) is provided with an arc-shaped clamping piece (604) for clamping the filter, and a limiting groove is opened at the center of the inner side of the arc-shaped clamping piece (604).

8. The coating apparatus for a dual-bandpass filter according to claim 1, characterized in that, The U-shaped card frame (2) is provided with positioning screws (201) on both sides, and the outer surface of the base plate (501) is provided with positioning screw holes that cooperate with the positioning screws (201) on both sides.

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