A cleaning device for filter production and processing

Abstract

This utility model discloses a cleaning device for filter production and processing, including a cleaning tank, a movable frame, a carrier frame, and a top cover. The cleaning tank contains cleaning fluid and is equipped with an ultrasonic generator for emitting ultrasonic waves into the cleaning fluid. Two sets of movable frames are respectively arranged on different sides of the cleaning tank, and each set of movable frames is connected to a guide groove. The carrier frame is vertically continuous, and crossbars are provided on both sides of the carrier frame. The two sets of crossbars can slide and engage with the two sets of guide grooves. A liner is provided inside the carrier frame, and the liner has multiple sets of receiving parts for placing filters. The top cover is connected to the movable frame through a lifting cylinder and is equipped with multiple sets of air nozzles, which are used to spray clean compressed air onto the surface of the filter in an oblique state to remove large particulate contaminants. The ultrasonic cleaning of the filter removes the most destructive large particulate contaminants, reducing the risk of scratching the filter coating.

Description

Technical Field

[0001] This utility model relates to the field of filter production technology, specifically a cleaning device for filter production and processing. Background Technology

[0002] The core function of a filter is to selectively transmit or block light of a specific wavelength. Its applications are extremely wide, covering almost all fields involving optics, such as imaging and photography, as well as industrial and machine vision.

[0003] After the filter is manufactured, it needs to be cleaned. The purpose of cleaning is to thoroughly remove all the tiny contaminants that have adhered to the surface of the filter during the manufacturing process, to ensure that its optical performance meets the design standards, and to guarantee its stability and reliability in subsequent use.

[0004] Ultrasonic waves can thoroughly remove submicron and nanoscale contaminants that cannot be reached by ordinary rinsing and wiping. However, some filter surfaces contain large particulate contaminants. If these large particles are directly immersed in an ultrasonic cleaning tank, they will be suspended in the cleaning solution and violently rub and roll on the filter coating surface under the action of ultrasonic waves or during the movement of the filter, which can easily cause fatal scratches and coating damage. Therefore, it is hoped that a cleaning device for filter production and processing can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning device for the production and processing of optical filters, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for filter production and processing, comprising:

[0007] A cleaning apparatus for filter manufacturing and processing, characterized in that it comprises:

[0008] A cleaning tank containing a cleaning solution is provided, and an ultrasonic generator is installed in the cleaning tank to emit ultrasonic waves into the cleaning solution.

[0009] There are two sets of movable frames, which are respectively set on different sides of the cleaning tank, and each set of movable frames is connected to a guide groove;

[0010] The frame is vertically continuous, with crossbars on both sides. The two sets of crossbars can slide and engage with the two sets of guide grooves. A liner is provided inside the frame. The liner has multiple receiving parts for placing filters. The front and rear ends of the liner are connected to the frame via rotating shafts. The rotating shafts are wound with torsion springs. Rotating the rotating shafts can cause the multiple sets of placed filters to be in an skewed state.

[0011] The top cover is connected to the movable frame via a lifting cylinder. The top cover is equipped with multiple sets of air nozzles, all of which are used to spray clean compressed air onto the surface of the deflected filter to remove large particulate contaminants.

[0012] As a preferred technical solution, the receiving part includes two sets of L-shaped plates, which are symmetrically distributed at intervals, and receiving grooves are opened on the opposite sides of the two sets of L-shaped plates.

[0013] As a preferred technical solution, the two sets of guide grooves are respectively provided with positioning groove one and positioning groove two. The two sets of positioning groove one are used to position the frame outside the cleaning tank, and the two sets of positioning groove two are used to position the frame inside the cleaning tank.

[0014] As a preferred technical solution, it also includes a lower cover, which has a negative pressure suction head inside, and the negative pressure suction head is used to collect large particulate pollutants that have been removed.

[0015] As a preferred technical solution, the rotating shaft extends out of the frame and is connected to a top groove. The upper cover is equipped with a horizontal cylinder. The piston rod of the horizontal cylinder is connected to a lever that can be inserted into the top groove. The upper end of the lever has a ball bearing. The extension and retraction of the piston rod of the horizontal cylinder is used to drive the rotating shaft to rotate.

[0016] As a preferred technical solution, the rotation angle of the rotating shaft is ±30-45 degrees.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Before ultrasonic cleaning of the filter, the most damaging large particulate contaminants are removed, reducing the risk of scratching the filter coating. The high-speed airflow acts on the filter surface at the optimal angle, avoiding the airflow dead angle that may be generated during vertical sweeping, which greatly improves the removal rate of large particles. By controlling the piston of the horizontal cylinder to extend or retract, the filter is driven to clean the surfaces on both sides.

[0019] When the nozzle blows away large particulate contaminants, the powerful suction immediately captures these particles and transports them through a pipe to a dust collection tank, preventing the particles from being randomly dispersed or falling back into the cleaning tank, thus ensuring the cleanliness of the entire cleaning environment and cleaning solution. Attached Figure Description

[0020] Figure 1 Schematic diagram of the overall structure Figure 1 ;

[0021] Figure 2 Schematic diagram of the overall structure Figure 2 ;

[0022] Figure 3This is a schematic diagram showing the distribution of multiple housing sections inside the frame;

[0023] Figure 4 This is a schematic diagram showing the positional relationship between the upper cover, the frame, and the lower cover.

[0024] In the diagram: 1. Cleaning tank; 2. Movable frame; 3. Guide groove; 4. Carrier frame; 5. Crossbar; 6. Liner plate; 7. Receiving part; 8. Rotating shaft; 9. Torsion spring; 10. Top cover; 11. Lifting cylinder; 12. Bottom cover; 13. Air nozzle; 14. Top groove; 15. Horizontal cylinder; 16. Toggle lever; 17. Negative pressure suction head. Detailed Implementation

[0025] The following is a detailed description of a cleaning apparatus for filter manufacturing according to embodiments of the present disclosure, with reference to the accompanying drawings. To make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present disclosure.

[0026] Therefore, the following detailed description of embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without inventive effort are within the scope of protection of the present disclosure.

[0027] A cleaning device for filter manufacturing and processing:

[0028] Please see Figure 1 , Figure 2 The cleaning tank 1 is the main container for ultrasonic cleaning. To accommodate the weak acid or weak alkaline cleaning solutions that may be used in optical cleaning, the inner wall of the tank is precision polished to reduce the adhesion of dirt. The cleaning solution can be a commercially available environmentally friendly water-based optical cleaning agent, whose main components usually include nonionic surfactants, chelating agents, cleaning aids and a small amount of organic solvents. The cleaning temperature is usually set between 40℃ and 60℃. Within this temperature range, the activity of the cleaning solution is high and the cavitation effect of the ultrasound is also better.

[0029] The ultrasonic generator (not shown in the figure) is the core of generating ultrasonic energy. It works in conjunction with multiple ultrasonic transducer oscillators. The transducers can be installed in an array on the bottom or side wall to ensure a uniform distribution of the sound field in the tank. The generator should have the functions of automatic frequency tracking and continuously adjustable power to adapt to changes in different loads and cleaning liquid levels.

[0030] Please see Figure 2 , Figure 3Two sets of movable frames 2 are respectively set on both sides of the cleaning tank 1. The guide groove 3 above them provides a precise guide for the movement of the frame 4. The material of the guide groove 3 can be stainless steel. The frame 4, as the main body of the load, needs to have sufficient rigidity to withstand the weight of the filter and the impact during movement. The material can also be stainless steel. The connection between the crossbar 5 and the main body of the frame 4 is preferably welded to ensure connection strength and structural integrity. Through the positioning groove one and positioning groove two, when the frame 4 slides to the corresponding position, the crossbar 5 is embedded in positioning groove one or positioning groove two to achieve precise locking. Positioning groove one locks the frame 4 in the pre-cleaning station, while positioning groove two locks it in the ultrasonic cleaning station, ensuring that each step is executed precisely in the preset position.

[0031] Please see Figure 3 The liner 6 has multiple sets of receiving parts 7, which are in direct contact with the filter. The receiving part 7 is composed of two sets of L-shaped plates. To prevent scratching the filter, the material of the L-shaped plates can be PEEK. The depth and width of the grooves opened on the opposite sides are designed according to the thickness of the filter to ensure stable clamping without contacting the optically effective area and to expose the surface of the filter to the maximum extent.

[0032] Please see Figure 3 The liner 6 is connected to the frame 4 via the pivots 8 at both ends. Each pivot 8 is wound with a torsion spring 9. After multiple sets of filters are placed on multiple sets of receiving parts 7, the elastic force of the torsion spring 9 keeps the multiple sets of receiving parts 7 in a vertical position.

[0033] Please see Figure 2 , Figure 4 The upper cover 10 is connected to the movable frame 2 via a lifting cylinder 11. The upper cover 10 is equipped with multiple sets of air nozzles 13. The lifting cylinder 11 is preferably a cylinder. The stroke of the cylinder needs to be designed according to the height of the frame 4 and the operating space. Multiple sets of air nozzles 13 are arranged in a linear array on the inner side of the upper cover 10. Their positions correspond one-to-one with the filter below. The air nozzles 13 are preferably flat nozzles. The compressed air ejected by the air nozzles 13 is clean air. After multi-stage filtration and drying, it is sufficient to generate a high-speed airflow to blow away large particulate pollutants on the surface of the deflected filter.

[0034] Please see Figure 4A rotating shaft 8 extends through the carrier frame 4 and is connected to a top groove 14. A horizontal cylinder 15 is installed on the upper cover 10. The piston rod of the horizontal cylinder 15 is connected to a lever 16 that can be inserted into the top groove 14. The upper end of the lever 16 has a ball bearing. When the carrier frame 4 reaches the pre-cleaning station, the lifting cylinder 11 drives the upper cover 10 to descend and drives the lever 16 to insert into the top groove 14. At this time, the piston rod of the horizontal cylinder 15 extends or retracts, causing the lever 16 to move laterally. The ball bearing contacts the inner wall of the top groove 14 and pushes the rotating shaft 8 to rotate, thereby causing the filter placed on the receiving part 7 to tilt. The rotation angle of the rotating shaft 8 is ±30-45 degrees. The horizontal cylinder 15 is preferably a pneumatic cylinder, and the stroke of the pneumatic cylinder needs to be designed according to the rotation angle of the rotating shaft 8. After the pre-cleaning is completed, the lifting cylinder 11 drives the upper cover 10 to reset, so that the lever 16 disengages from the top groove 14, allowing the carrier frame 4 to move to the ultrasonic cleaning station.

[0035] Before ultrasonic cleaning of the filter, the most damaging large particulate contaminants are removed, reducing the risk of scratching the filter coating. The high-speed airflow acts on the filter surface at the optimal angle, avoiding the airflow dead zone that may occur during vertical sweeping, which greatly improves the removal rate of large particles. By controlling the piston of the horizontal cylinder 15 to extend or retract, the filter is driven to clean the surfaces on both sides.

[0036] Please see Figure 4 The lower cover 12 is located directly below the pre-cleaning station, forming a collection chamber. The negative pressure suction head 17 is one or more elongated suction ports, facing the bottom of the filter and the direction of the purge airflow. The suction head is connected to an external vacuum pump or negative pressure generator through a pipe. When the nozzle 13 blows off large particulate contaminants, the powerful suction will immediately capture these particles and transport them to a dust collection tank through a pipe, preventing the particles from being removed and randomly diffused or falling back into the cleaning tank 1, thus ensuring the cleanliness of the entire cleaning environment and the cleaning solution.

[0037] The extension and retraction of the piston rods of the lifting cylinder 11 and the horizontal cylinder 15 are achieved by the PLC programmable logic controller through the control of the solenoid valve, and upper and lower limit position sensors are set to ensure safe and reliable operation.

[0038] 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 cleaning device for filter manufacturing and processing, characterized in that, include: A cleaning tank containing a cleaning solution is provided, and an ultrasonic generator is installed in the cleaning tank to emit ultrasonic waves into the cleaning solution. There are two sets of movable frames, which are respectively set on different sides of the cleaning tank, and each set of movable frames is connected to a guide groove; The frame is vertically continuous, with crossbars on both sides. The two sets of crossbars can slide and engage with the two sets of guide grooves. A liner is provided inside the frame. The liner has multiple receiving parts for placing filters. The front and rear ends of the liner are connected to the frame via rotating shafts. The rotating shafts are wound with torsion springs. Rotating the rotating shafts can cause the multiple sets of placed filters to be in an skewed state. The top cover is connected to the movable frame via a lifting cylinder. The top cover is equipped with multiple sets of air nozzles, all of which are used to spray clean compressed air onto the surface of the deflected filter to remove large particulate contaminants.

2. The cleaning apparatus for filter production and processing according to claim 1, characterized in that, The receiving part includes two sets of L-shaped plates, which are symmetrically distributed at intervals, and receiving grooves are opened on the opposite sides of the two sets of L-shaped plates.

3. The cleaning apparatus for filter production and processing according to claim 1, characterized in that, The two sets of guide grooves are respectively provided with positioning groove one and positioning groove two. The two sets of positioning groove one are used to position the frame outside the cleaning tank, and the two sets of positioning groove two are used to position the frame inside the cleaning tank.

4. The cleaning apparatus for filter production and processing according to claim 1, characterized in that, It also includes a lower cover, which has a negative pressure suction head for collecting large particulate pollutants that have been removed.

5. The cleaning apparatus for filter production and processing according to claim 1, characterized in that, The rotating shaft extends out of the frame and is connected to a top groove. A horizontal cylinder is installed on the top cover. The piston rod of the horizontal cylinder is connected to a lever that can be inserted into the top groove. The upper end of the lever has a ball bearing. The extension and retraction of the piston rod of the horizontal cylinder is used to drive the rotating shaft to rotate.

6. The cleaning apparatus for filter production and processing according to claim 5, characterized in that, The rotation angle of the shaft is ±30-45 degrees.

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