Fabrication process of a subwavelength grating filter

Abstract

This invention relates to the field of filter fabrication, specifically to a fabrication process for a subwavelength grating filter, comprising the following steps: First, material selection for the filter is carried out, and corresponding materials are prepared according to the filter type, specifications, and quality requirements; then, machining is performed according to design requirements, including cutting, drilling, milling, turning, grinding, and other processes on various materials; baffles are used to correct the position of the filter on the first and second conveyor belts respectively, and baffles are also used to limit the individual filters of the same batch dispersed on the first and second conveyor belts, ensuring that the filters of the same batch enter the dispensing machine for dispensing operations simultaneously. When the filter shifts due to inertia on the conveyor belt, its position can also be corrected through the cooperation of baffles and stop components, which not only improves the dispensing accuracy but also the dispensing efficiency of the filter.

Description

Technical Field

[0001] This invention relates to the field of filter fabrication technology, and in particular to a fabrication process for a subwavelength grating filter. Background Technology

[0002] With the development of modern technology, optical communication technology can be summarized as developing towards large capacity, high speed, long distance and low cost. Subwavelength refers to a periodic structure whose characteristic size is comparable to or smaller than the operating wavelength. Because the period of a subwavelength grating is much smaller than the incident light wavelength, only diffraction waves exist. By designing the parameters of the subwavelength grating structure, the required refractive index can be obtained and the direction of beam propagation can be controlled, which is of great significance for the production of frequency-selective filtering filters.

[0003] Currently, the manufacturing process of subwavelength grating filters is divided into five steps: material preparation, machining, assembly, debugging, and packaging. Among them, the assembly process requires dispensing adhesive to the filter. The main method is to place the filter on a conveyor belt and use the conveyor belt to transport the filter to the dispensing machine, where the dispensing machine dispenses adhesive onto the filter.

[0004] However, when using a conveyor belt to transport filters, the filter's position usually shifts slightly due to inertia caused by the start and stop of the conveyor belt, which in turn causes the dispensing position of the filter to shift, resulting in a reduction in the dispensing effect. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that when the filter is transported by the conveyor belt in the prior art, the filter usually shifts slightly due to the inertia caused by the start and stop of the conveyor belt, which in turn causes the dispensing position of the filter to shift, resulting in a reduction in the dispensing effect.

[0006] To address the aforementioned technical problems, this invention provides a fabrication process for a subwavelength grating filter, comprising the following steps:

[0007] S1: First, select the materials for the filter. Prepare the appropriate materials according to the type, specifications and quality requirements of the filter.

[0008] S2: Then, according to the design requirements, machining is carried out, including cutting, drilling, milling, turning, grinding and other processes on various materials;

[0009] S3: Use a conveying device to feed the filter into the dispensing machine for dispensing, thus completing the assembly process;

[0010] S4: Adjust the filter and check whether its performance meets the usage requirements;

[0011] S5: Finally, package the filter to ensure its safety during transportation and storage.

[0012] In one embodiment of the present invention, the conveying device includes a first conveyor belt and a second conveyor belt; the second conveyor belt is located below the side of one end of the first conveyor belt; a separating unit is fixedly connected to both the first and second conveyor belts; the separating unit includes a frame fixedly connected to the middle of the first and second conveyor belts; a plurality of equally spaced partitions are fixedly connected to the bottom of the frame; a flexible belt is fixedly connected to both the first and second conveyor belts at positions corresponding to the partitions; a stop assembly is rotatably connected to each frame, and the stop assembly includes a baffle; a connecting assembly is provided between the first and second conveyor belts, and the connecting assembly includes a connecting plate.

[0013] In one embodiment of the present invention, the blocking assembly includes a shaft rotatably connected to the frame; baffles are fixedly connected to the shaft at positions corresponding to the partitions; a swing cylinder is fixedly connected to one side of the frame, and the swing cylinders are fixedly connected to the corresponding shafts; and multiple photoelectric sensors corresponding to the flexible belts are fixedly connected to the top of the frame.

[0014] In one embodiment of the present invention, the connecting assembly includes connecting plates disposed on both sides of the flexible belt; a fixing plate is fixedly connected between adjacent connecting plates; a hanging plate is fixedly connected to both ends of the fixing plate; and a limiting plate is fixedly connected to both sides of the connecting plate.

[0015] In one embodiment of the present invention, the first conveyor belt and the second conveyor belt are rotatably connected to fixed shafts at positions corresponding to the baffles; pads are rotatably connected to the fixed shafts at positions corresponding to the partitions; the ends of the pads opposite to the fixed shafts are jointly fixed to a movable shaft; the first and second conveyor belts have arc-shaped grooves penetrating the partitions at positions corresponding to the movable shafts, and the movable shafts are slidably connected inside the arc-shaped grooves; long rods are fixed to the outer ends of the shafts; fixed rods are fixed to the sides of the first and second conveyor belts near the long rods, and the fixed rods are located above the arc-shaped grooves; a connecting rope is fixed to the end of the long rod, and the other end of the connecting rope is fixed to the end of the movable shaft around the top of the fixed rod.

[0016] In one embodiment of the present invention, a linkage plate is rotatably connected to the end of the pad away from the fixed axis, and the linkage plate is wedge-shaped.

[0017] In one embodiment of the present invention, a first motor is fixedly connected to the side of the first conveyor belt, and the output end of the first motor is fixedly connected to one of the drive shafts of the first conveyor belt; a second motor is fixedly connected to the side of the second conveyor belt, and the output end of the second motor is fixedly connected to one of the drive shafts of the second conveyor belt; the rotational speed of the first motor is greater than that of the second motor.

[0018] In one embodiment of the present invention, the thickness of the flexible strip is the same as the thickness of the connecting plate; the sum of the widths of the two connecting plates and the width of the flexible strip is the distance between the partitions.

[0019] In one embodiment of the present invention, the angle between the hanging plate and the limiting plate is 90°, and the hanging plate is respectively attached to the ends of the first conveyor belt and the second conveyor belt.

[0020] In one embodiment of the present invention, the rotation angle between the linkage plate and the pad is less than 90°.

[0021] The technical solution of the present invention has the following advantages compared with the prior art:

[0022] The fabrication process of a subwavelength grating filter described in this invention involves first placing the filter between the partitions of a first conveyor belt, then using a connecting plate to transport the filter from the first conveyor belt to a second conveyor belt, and finally using the second conveyor belt to transport the filter into a dispensing machine for dispensing. During this process, partitions limit the position of the filter on both sides. During transport, baffles are used to correct the position of the filter on the first and second conveyor belts, and baffles also limit the position of each filter in the same batch dispersed on the first and second conveyor belts, ensuring that filters in the same batch enter the dispensing machine simultaneously for dispensing. When the filter shifts due to inertia on the conveyor belt, its position can also be corrected through the cooperation of partitions and baffle components, which not only improves the dispensing accuracy but also the dispensing efficiency of the filter.

[0023] The fabrication process of a subwavelength grating filter described in this invention involves the filter being located above a flexible strip. When the first conveyor belt of the filter moves to the end near the second conveyor belt, the first conveyor belt and the second conveyor belt are connected by a connecting plate. The filter is then transported to the connecting plate by the inertia of the first conveyor belt. Under its own gravity, the filter automatically slides onto the second conveyor belt, thus achieving the purpose of transferring the filter.

[0024] The fabrication process of a subwavelength grating filter described in this invention involves the following steps: When the photoelectric sensor sends a command to the swing cylinder to block the filter, the filter moves onto the pad under the thrust provided by the first or second conveyor belt. This prevents the filter, which is blocked in front of the baffle, from rubbing against the first or second conveyor belt for an extended period, causing localized damage. After a fixed time interval has elapsed, the swing cylinder moves the baffle to release the filter. Simultaneously, a connecting rope is pulled by a long rod, which in turn pulls the moving shaft upward within the arc-shaped groove. This causes the pad to rotate around the fixed axis at a fixed angle. At this point, the filter slides down onto the first or second conveyor belt under its own gravity.

[0025] The manufacturing process of a subwavelength grating filter described in this invention involves a first motor driving a first conveyor belt to rotate, and a second motor driving a second conveyor belt to rotate. By setting the rotation speed of the first motor to be greater than that of the second motor, a speed difference can be formed after the filter enters the second conveyor belt from the first conveyor belt, thus increasing the distance between filters of different batches. This facilitates subsequent dispensing operations and packaging processes by the dispensing machine. Attached Figure Description

[0026] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] Figure 1 It is a perspective view of the present invention;

[0028] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 3 This is a perspective view of the blocking component in this invention;

[0030] Figure 4 This is a perspective view of the first conveyor belt in this invention;

[0031] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0032] Figure 6 This is a perspective view of the connecting components in this invention;

[0033] Figure 7 is a flow chart of the present invention;

[0034] Explanation of reference numerals in the accompanying drawings: 1. First conveyor belt; 2. Second conveyor belt; 3. Partition; 4. Flexible belt; 5. Connecting plate; 51. Fixing plate; 52. Hanging plate; 53. Limiting plate; 6. First motor; 61. Second motor; 7. Frame; 71. Shaft; 711. Fixed shaft; 712. Pad; 7121. Linkage plate; 713. Moving shaft; 714. Long rod; 715. Arc groove; 716. Fixing rod; 717. Connecting rope; 72. Swing cylinder; 73. Baffle. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0036] Please see Figure 1 - Figure 7This invention provides a fabrication process for a subwavelength grating filter, comprising the following steps:

[0037] S1: First, select the materials for the filter. Prepare the appropriate materials according to the type, specifications and quality requirements of the filter.

[0038] S2: Then, according to the design requirements, machining is carried out, including cutting, drilling, milling, turning, grinding and other processes on various materials;

[0039] S3: Use a conveying device to feed the filter into the dispensing machine for dispensing, thus completing the assembly process;

[0040] S4: Adjust the filter and check whether its performance meets the usage requirements;

[0041] S5: Finally, package the filter to ensure its safety during transportation and storage.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the conveying equipment includes a first conveyor belt 1 and a second conveyor belt 2; the second conveyor belt 2 is located below the side of one end of the first conveyor belt 1; a separator unit is fixedly connected to both the first conveyor belt 1 and the second conveyor belt; the separator unit includes a frame 7 fixedly connected to the middle of the first conveyor belt 1 and the second conveyor belt 2; a plurality of equally spaced partitions 3 are fixedly connected to the bottom of the frame 7; a flexible belt 4 is fixedly connected to both the first conveyor belt 1 and the second conveyor belt 2 at positions corresponding to the partitions 3; a stop assembly is rotatably connected to each frame 7, and the stop assembly includes a baffle 73; a connecting assembly is provided between the first conveyor belt 1 and the second conveyor belt 2, and the connecting assembly includes a connecting plate 5. To prevent filters from shifting due to inertia during transport on the conveyor belt, which would degrade the dispensing effect, the filters are first placed between the partitions 3 on the first conveyor belt 1. Then, the connecting plate 5 transports the filters from the first conveyor belt 1 to the second conveyor belt 2. Finally, the second conveyor belt 2 transports the filters into the dispensing machine for dispensing. During this process, the partitions 3 limit the movement of the filters on both sides. During transport, baffles 73 correct the position of the filters on the first and second conveyor belts 1 and 2 respectively, and limit the movement of each filter in the same batch on the first and second conveyor belts 1 and 2. This ensures that filters in the same batch enter the dispensing machine simultaneously for dispensing. If the filters shift due to inertia on the conveyor belt, the position can be corrected through the cooperation of the partitions 3 and the baffle assembly. This not only improves the dispensing accuracy but also the dispensing efficiency of the filters.

[0043] Furthermore, such as Figure 5As shown, the blocking assembly includes a shaft 71 rotatably connected to the frame 7; baffles 73 are fixedly connected to the shaft 71 at positions corresponding to the partitions 3; a swing cylinder 72 is fixedly connected to one side of the frame 7, and each swing cylinder 72 is fixedly connected to the corresponding shaft 71; multiple photoelectric sensors corresponding one-to-one with the flexible belt 4 are fixedly connected to the top of the frame 7. In order to achieve the effect of automatic filter correction, in specific operations, the filters on the first conveyor belt 1 or the second conveyor belt 2 are first detected by the photoelectric sensors. When the first filter enters the detection area of ​​the photoelectric sensor, the photoelectric sensor sends a command to the swing cylinder 72 on the conveyor belt. The swing cylinder 72 drives the baffle 73 to rotate through the shaft 71, blocking the filter in front of the baffle 73. After the baffle 73 continuously blocks for a fixed time interval, the swing cylinder 72 drives the baffle 73 to rotate again through the shaft 71. At this time, the filters of this batch are on the same starting line and are transported on the conveyor belt at the same time, achieving the effect of automatic filter position correction.

[0044] Furthermore, such as Figure 2 and Figure 6 As shown, the connecting assembly includes connecting plates 5 disposed on both sides of the flexible belt 4; a fixing plate 51 is fixedly connected between adjacent connecting plates 5; hanging plates 52 are fixedly connected to both ends of the fixing plate 51; and limiting plates 53 are fixedly connected to both sides of the connecting plate 5. In order to achieve the effect of smoothly conveying the filter on the first conveyor belt 1 to the second conveyor belt 2, in actual operation, since the filter is located above the flexible belt 4, when the filter on the first conveyor belt 1 moves to the end near the second conveyor belt 2, the first conveyor belt 1 and the second conveyor belt 2 are connected by the connecting plates 5. The inertia of the first conveyor belt 1 is used to convey the filter to the connecting plate 5, and the filter automatically slides onto the second conveyor belt 2 under its own gravity, thus achieving the purpose of transferring the filter.

[0045] Furthermore, such as Figure 3 and Figure 5As shown, the first conveyor belt 1 and the second conveyor belt 2 are rotatably connected to fixed shafts 711 at positions corresponding to baffles 73; pads 712 are rotatably connected to the fixed shafts 711 at positions corresponding to the partitions 3; the ends of the pads 712 opposite to the fixed shafts 711 are fixedly connected to movable shafts 713; the first conveyor belt 1 and the second conveyor belt 2 have arc-shaped grooves 715 penetrating the partitions 3 at positions corresponding to the movable shafts 713, and the movable shafts 713 are slidably connected inside the arc-shaped grooves 715; long rods 714 are fixedly connected to the outer ends of the shafts 71; fixed rods 716 are fixedly connected to the side of the first conveyor belt 1 and the second conveyor belt 2 near the long rods 714, and the fixed rods 716 are located above the arc-shaped grooves 715; a connecting rope 717 is fixedly connected to the end of the long rod 714, and the other end of the connecting rope 717 is fixedly connected to the end of the movable shaft 713 around the fixed rod 716. Because the bottom of the filter rubs against the conveyor belt surface for a long time when the baffle 73 blocks the filter, causing local damage, in actual operation, when the photoelectric eye sends a command to the swing cylinder 72 to drive the file to block the filter, the filter moves to the pad 712 under the thrust provided by the first conveyor belt 1 or the second conveyor belt 2. This prevents the filter blocked in front of the baffle 73 from rubbing against the first conveyor belt 1 or the second conveyor belt 2 for a long time, causing local damage. After the baffle 73 blocks for a fixed time interval, the swing cylinder 72 drives the baffle 73 to release the restriction on the filter. At the same time, the connecting rope 717 is pulled by the long rod 714, and the moving shaft 713 is pulled upward in the arc groove 715 by the connecting rope 717. This causes the pad 712 to rotate around the fixed shaft 711 at a fixed angle. At this time, the filter slides down onto the first conveyor belt 1 or the second conveyor belt 2 under its own gravity.

[0046] It is worth noting here that: in order to avoid subsequent filters from accumulating due to prolonged friction caused by the previous filters not yet passing through the baffle 73, the spacing between filters should not be too close when placing them.

[0047] Furthermore, such as Figure 3 As shown, a linkage plate 7121 is rotatably connected to the end of the pad 712 away from the fixed shaft 711, and the linkage plate 7121 is wedge-shaped. By setting the wedge-shaped linkage plate 7121, the first convenient filter enters the pad 712 under the action of the first conveyor belt 1 or the second conveyor belt 2; secondly, when the pad 712 rotates, the linkage plate 7121 rotates under its own gravity, forming an angle with the first conveyor belt 1 or the second conveyor belt 2, blocking the subsequent filter and preventing the subsequent filter from getting stuck at the bottom of the pad 712.

[0048] Furthermore, such as Figure 1As shown, a first motor 6 is fixedly connected to the side of the first conveyor belt 1, and the output end of the first motor 6 is fixedly connected to one of the drive shafts of the first conveyor belt 1; a second motor 61 is fixedly connected to the side of the second conveyor belt 2, and the output end of the second motor 61 is fixedly connected to one of the drive shafts of the second conveyor belt 2; the rotational speed of the first motor 6 is greater than that of the second motor 61. The first motor 6 drives the first conveyor belt 1 to rotate, and the second motor 61 drives the second conveyor belt 2 to rotate. By setting the rotational speed of the first motor 6 to be greater than that of the second motor 61, a speed difference can be formed after the filter enters the second conveyor belt 2 from the first conveyor belt 1, thus increasing the distance between filters of different batches and facilitating subsequent dispensing operations and packaging processes.

[0049] Furthermore, such as Figure 2 As shown, the thickness of the flexible strip 4 is the same as the thickness of the connecting plate 5; the sum of the widths of the two connecting plates 5 and the width of the flexible strip 4 is the distance between the partition plates 3. By setting the thickness of the flexible strip 4 to be the same as the thickness of the connecting plate 5, the filter can move more smoothly from the first conveyor belt 1 into the second conveyor belt 2.

[0050] Furthermore, such as Figure 6 As shown, the angle between the mounting plate 52 and the limiting plate 53 is 90°, and the mounting plate 52 is respectively attached to the ends of the first conveyor belt 1 and the second conveyor belt 2. By setting the angle between the mounting plate 52 and the limiting plate 53 to 90°, the scraper can be quickly installed on the first conveyor belt 1 and the second conveyor belt 2.

[0051] Furthermore, such as Figure 5 As shown, the rotation angle between the linkage plate 7121 and the pad 712 is less than 90°. By setting the rotation angle between the linkage plate 7121 and the pad 712 to less than 90°, it is possible to avoid motion interference caused by the linkage plate 7121 entering the bottom of the pad 712 during reset, which could lead to jamming.

[0052] Working principle:

[0053] First, the filter is placed between the partitions 3 of the first conveyor belt 1. Then, the filter is transported from the first conveyor belt 1 to the second conveyor belt 2 using the connecting plate 5. Finally, the filter is transported into the dispensing machine for dispensing using the second conveyor belt 2. During this process, the partitions 3 limit the position of the filter on both sides. During the transport process, the baffles 73 are used to correct the position of the filter on the first conveyor belt 1 and the second conveyor belt 2 respectively. The baffles 73 also limit the position of each filter in the same batch that is dispersed on the first conveyor belt 1 and the second conveyor belt 2, ensuring that the filters in the same batch enter the dispensing machine for dispensing at the same time. When the filter shifts due to inertia on the conveyor belt, the position can also be corrected by the cooperation of the partitions 3 and the stop components. This not only improves the dispensing accuracy but also improves the dispensing efficiency of the filter.

[0054] First, the filters on the first conveyor belt 1 or the second conveyor belt 2 are detected by photoelectric sensor. When the first filter enters the detection area of ​​the photoelectric sensor, the photoelectric sensor sends a command to the swing cylinder 72 on the conveyor belt. The swing cylinder 72 drives the baffle 73 to rotate through the shaft 71, blocking the filter in front of the baffle 73. After the baffle 73 blocks the filter for a fixed time interval, the swing cylinder 72 drives the baffle 73 to rotate again through the shaft 71. At this time, the filters in this batch are on the same starting line and are transported on the conveyor belt at the same time, achieving the effect of automatically correcting the position of the filter.

[0055] Since the filter is located above the soft belt 4, when the filter first conveyor belt 1 moves to the end near the second conveyor belt 2, the first conveyor belt 1 and the second conveyor belt 2 are connected by the connecting plate 5. The filter is transported to the connecting plate 5 by the inertia of the first conveyor belt 1. The filter automatically slides onto the second conveyor belt 2 under its own gravity, thus achieving the purpose of transferring the filter.

[0056] When the photoelectric sensor sends a command to the swing cylinder 72 to block the filter, the filter moves onto the pad 712 under the thrust provided by the first conveyor belt 1 or the second conveyor belt 2. This prevents the filter, which is blocked in front of the baffle 73, from rubbing against the first conveyor belt 1 or the second conveyor belt 2 for a long time, causing local damage. After the baffle 73 has blocked for a fixed time interval, the swing cylinder 72 drives the baffle 73 to release the restriction on the filter. At the same time, the connecting rope 717 is pulled by the long rod 714. The connecting rope 717 pulls the moving shaft 713 to slide upward in the arc groove 715, thereby causing the pad 712 to rotate around the fixed shaft 711 at a fixed angle. At this time, the filter slides down onto the first conveyor belt 1 or the second conveyor belt 2 under its own gravity.

[0057] The first motor 6 drives the first conveyor belt 1 to rotate, and the second motor 61 drives the second conveyor belt 2 to rotate. By setting the speed of the first motor 6 to be greater than that of the second motor 61, a speed difference can be formed after the filter enters the second conveyor belt 2 from the first conveyor belt 1, thus increasing the distance between filters of different batches, which facilitates subsequent dispensing operations and packaging processes by the dispensing machine.

[0058] Obviously, the above embodiments are merely illustrative examples for clarity and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A fabrication process for a subwavelength grating filter, characterized in that: Includes the following steps: S1: First, select the materials for the filter. Prepare the appropriate materials according to the type, specifications and quality requirements of the filter. S2: Then, according to the design requirements, machining is carried out, including cutting, drilling, milling, turning, and grinding of various materials; S3: Use a conveying device to feed the filter into the dispensing machine for dispensing, thus completing the assembly process; S4: Adjust the filter and check whether its performance meets the usage requirements; S5: Finally, package the filter to ensure its safety during transportation and storage; The conveying equipment includes a first conveyor belt (1) and a second conveyor belt (2); the second conveyor belt (2) is located below the side of one end of the first conveyor belt (1); a partition unit is fixedly connected to both the first conveyor belt (1) and the second conveyor belt; the partition unit includes a frame (7) fixedly connected to the middle of the first conveyor belt (1) and the second conveyor belt (2); a plurality of equally spaced partitions (3) are fixedly connected to the bottom of the frame (7); a soft belt (4) is fixedly connected to both the first conveyor belt (1) and the second conveyor belt (2) at positions corresponding to the partitions (3); a stop assembly is rotatably connected to each frame (7), and the stop assembly includes a baffle (73); a connecting assembly is provided between the first conveyor belt (1) and the second conveyor belt (2), and the connecting assembly includes a connecting plate (5); The stop assembly includes a shaft (71) rotatably connected to the frame (7); baffles (73) are fixedly connected to the shaft (71) at positions corresponding to the partitions (3); a swing cylinder (72) is fixedly connected to one side of the frame (7), and the swing cylinders (72) are fixedly connected to the corresponding shafts (71); multiple photoelectric sensors corresponding to the soft belts (4) are fixedly connected to the top of the frame (7); The connecting assembly includes connecting plates (5) disposed on both sides of the flexible strip (4); a fixing plate (51) is fixedly connected between adjacent connecting plates (5); a hanging plate (52) is fixedly connected to both ends of the fixing plate (51); and a limiting plate (53) is fixedly connected to both sides of the connecting plate (5). The first conveyor belt (1) and the second conveyor belt (2) are rotatably connected to fixed shafts (711) at positions corresponding to the baffles (73); pads (712) are rotatably connected to the fixed shafts (711) at positions corresponding to the partitions (3); the ends of the corresponding pads (712) away from the fixed shafts (711) are jointly fixed to movable shafts (713); the first conveyor belt (1) and the second conveyor belt (2) are provided with arc-shaped grooves (71) penetrating the partitions (3) at positions corresponding to the movable shafts (713). 5), and the moving shaft (713) is slidably connected inside the arc groove (715); the outer ends of the shaft (71) are all fixedly connected to long rods (714); the first conveyor belt (1) and the second conveyor belt (2) are fixedly connected to a fixing rod (716) on the side near the long rod (714), and the fixing rod (716) is located above the arc groove (715); the end of the long rod (714) is fixedly connected to a connecting rope (717), and the other end of the connecting rope (717) is fixedly connected to the end of the moving shaft (713) around the top of the fixing rod (716).

2. The fabrication process of a subwavelength grating filter according to claim 1, characterized in that: The pad (712) is rotatably connected to a linkage plate (7121) at one end away from the fixed shaft (711), and the linkage plate (7121) is wedge-shaped.

3. The fabrication process of a subwavelength grating filter according to claim 2, characterized in that: The first conveyor belt (1) is fixedly connected to a first motor (6) on its side, and the output end of the first motor (6) is fixedly connected to one of the drive shafts of the first conveyor belt (1); the second conveyor belt (2) is fixedly connected to a second motor (61) on its side, and the output end of the second motor (61) is fixedly connected to one of the drive shafts of the second conveyor belt (2); the speed of the first motor (6) is greater than the speed of the second motor (61).

4. The fabrication process of a subwavelength grating filter according to claim 3, characterized in that: The thickness of the soft strip (4) is the same as the thickness of the connecting plate (5); the sum of the width of the two connecting plates (5) and the width of the soft strip (4) is the distance between the partitions (3).

5. The fabrication process of a subwavelength grating filter according to claim 4, characterized in that: The angle between the hanging plate (52) and the limiting plate (53) is 90°, and the hanging plate (52) is attached to the ends of the first conveyor belt (1) and the second conveyor belt (2) respectively.

6. The fabrication process of a subwavelength grating filter according to claim 5, characterized in that: The rotation angle between the linkage plate (7121) and the pad plate (712) is less than 90°.

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