A new material optical lens contamination degree detection device

Abstract

The application discloses a new material optical lens pollution degree detection device and relates to the field of lens detection. The air flow purification device further comprises a fan, a table plate, an electric sliding rail, a closed frame, a ventilation notch, a transverse connecting vertical plate and an air duct groove. The fan is arranged on the top of a detection table. The table plate is fixedly connected to the top of the detection table. The electric sliding rail is arranged on the inner wall of the table plate. The transverse connecting vertical plate is fixedly connected to the outer wall of the closed frame. The air duct groove is arranged on the inner wall of the table plate. The rotating rod drives the air control plate in the inner wall of the air duct groove to swing in the rotating process. The air control plate can guide the air flow in the up-down swinging process. Since the lens usually has a certain arc, when the air control plate is close to the bottom of the air duct groove, the air flow area above is large, and most of the air flow blows to the upper surface of the lens.

Description

Technical Field

[0001] This invention belongs to the field of lens inspection, specifically relating to a new material optical lens contamination detection device. Background Technology

[0002] As a core component of optical systems, the surface contamination of optical lenses directly affects image quality and system reliability. With the increasingly widespread application of new material optical lenses in high-end fields, the requirements for detecting the degree of surface contamination are becoming increasingly stringent. Currently used detection methods suffer from problems such as complex operation, reliance on human experience, or insufficient detection accuracy.

[0003] Patent CN108132258A discloses a device and method for detecting the degree of contamination in optical lenses. The method includes: placing the optical lens under test in a light-shielding black box and evacuating its interior to a vacuum state; after the system circuit is preheated, a microprocessor sends an emission current and control timing to a light emitter via a control circuit, and the light emitter sends a light signal to a photosensor; a processing circuit filters, amplifies, and performs analog-to-digital conversion on the light signal received by the photosensor, converting the light signal into an electrical signal and sending it to the microprocessor; the microprocessor analyzes the degree of contamination in the current optical lens, converts the detection result into a digital quantity, and displays it; the current optical lens is removed, and the above steps are repeated until all optical lenses under test are tested, and the obtained detection results are compared and analyzed. This invention can simply and accurately achieve quantitative detection and analysis of the degree of contamination in optical lenses, providing detailed comparative data for the design and use of optical lenses.

[0004] The above-mentioned device also has the following problems: Although the device solves the problems mentioned above, the lens in front of the detection lens is not effectively cleaned, which may cause the detection device to misdetect the dust on the lens as a defect in the lens itself. Traditional cleaning methods such as wiping and rinsing with water are difficult to achieve a long-term cleaning effect on the lens, and fine dust may still adhere to the lens during the detection process. Summary of the Invention

[0005] The purpose of this invention is to provide a novel device for detecting the degree of contamination in optical lenses made of new materials, in order to solve the problems encountered during the detection process. There may be issues due to fine dust adhering to the lenses.

[0006] To achieve the above objectives, the present invention provides a novel material optical lens contamination detection device, comprising a detection table, a detection head disposed on the top of the detection table, an airflow purification device disposed on the top of the detection table, a dust collection mechanism disposed on the top of the detection table, a drying mechanism disposed on the top of the dust collection mechanism, and a brightness meter disposed at the bottom of the dust collection mechanism. The airflow purification device also includes a fan, a tabletop, an electric slide rail, a sealed frame, a ventilation slot, horizontal and vertical connecting plates, and an air duct. The fan is located on the top of the testing tabletop, the tabletop is fixedly connected to the top of the testing tabletop, the electric slide rail is located on the inner wall of the tabletop, the sealed frame is slidably connected to the inner wall of the electric slide rail, the ventilation slot is located on the outer wall of the sealed frame, the horizontal and vertical connecting plates are fixedly connected to the outer wall of the sealed frame, and the air duct is located on the inner wall of the tabletop.

[0007] According to another advantageous design of the present invention, the airflow purification device further includes a clamping plate, a bottom clamping pad, and an air control plate. The clamping plate is fixedly connected to the outer wall of the horizontal and vertical connecting plates, the bottom clamping pad is fixedly connected to the outer wall of the clamping plate, and the air control plate is swayably installed on the inner wall of the air duct groove. The air outlet of the fan is located at the right end of the air duct groove.

[0008] According to another advantageous design of the present invention, the airflow purification device further includes a rotating rod and a knob, the rotating rod being rotatably connected to the inner wall of the table, the knob being fixedly connected to the outer wall of the rotating rod, and the air control plate being fixedly connected to the rotating rod; As the rotating rod rotates, it causes the air control plate on the inner wall of the air duct to swing. As the air control plate swings up and down, it can guide the airflow. Since the lens usually has a certain curvature, when the air control plate is close to the bottom of the air duct, the air passage area above is larger, and most of the airflow will blow towards the upper surface of the lens.

[0009] According to another advantageous design of the present invention, the ash collection mechanism includes an air collecting chamber, an opening, and an inclined plate. The air collecting chamber is fixedly connected to the outer wall of the sealed frame, the opening is opened on the outer wall of the air collecting chamber, and the inclined plate is fixedly connected to the inner wall of the air collecting chamber.

[0010] According to another advantageous design of the present invention, the ash collection mechanism further includes an ash-adhesive plate and a sealed tube, the ash-adhesive plate being disposed at the bottom of the air collection chamber, the sealed tube being opened on the inner wall of the table, and the sealed tube communicating with the air collection chamber.

[0011] According to another advantageous design of the present invention, the ash collection mechanism further includes a sound-collecting plate and a diverting frame, wherein the sound-collecting plate is fixedly connected to the inner wall of the sealed pipe, and the diverting frame is fixedly connected to the outer wall of the sealed pipe, and the distribution pattern of the diverting frame is irregular; The airflow is diverted by an irregular flow divider to prevent the airflow from becoming too concentrated and causing it to blow on other equipment near the device for a long time, which would lead to long-term weathering of the equipment and affect its operating accuracy.

[0012] According to another advantageous design of the invention, the drying mechanism includes a drying chamber and a ventilated surface. The drying chamber is disposed on the inner wall of the table and is located between the fan and the air duct. The ventilated surface is fixedly connected to the bottom of the drying chamber.

[0013] According to another advantageous design of the invention, the drying mechanism further includes a rotating rod and a rotating shaft, the rotating rod being rotatably connected to the inner wall of the table, the rotating shaft being rotatably connected to the inner wall of the drying chamber, the rotating rod and the rotating shaft being fixedly connected, and the rotating shaft and the rotating rod being connected by a pulley system for transmission.

[0014] According to another advantageous design of the invention, the drying mechanism further includes a dust-collecting plate, which is fixedly connected to the outer circumferential surface of the rotating rod, and the interior of the drying chamber is used to place a desiccant; The desiccant inside the breathable surface is first filtered to remove moisture from the airflow, and then blown onto the lens itself. This step prevents the airflow from carrying water vapor and leaving water stains on the lens surface, thus avoiding false detection. It also prevents damage to the optical lens coating.

[0015] The beneficial effects of this invention are: 1. In this invention, with the cooperation of the fan, the sealed frame, and the air duct, the fan is activated during the detection process to generate a strong airflow. The airflow generated by the fan is then guided by the air duct to the sealed frame. After passing through the sealed frame, the airflow passes through the ventilation slot and then through the opening on the surface of the lens clamping plate to the lens surface. Since the lens will adsorb dust, fibers, and grinding residue during the cutting, polishing, cleaning, and transportation processes, which are not easily visible to the naked eye, the airflow blows away the floating dust, avoiding the misjudgment of dust as scratches, pits, or dirt defects, greatly reducing the occurrence of false detections. At the same time, the optical lens is prone to static electricity after coating, which continuously attracts fine dust. Dust will fall back quickly after wiping. The flowing air can neutralize the static electricity, maintain cleanliness for a short time, and ensure stable continuous detection. During the inspection process, a rotary knob is manually rotated to drive a rotating rod. As the rod rotates, it causes the air control plate on the inner wall of the air duct to swing. The air control plate guides the airflow as it swings up and down. Since the lens usually has a certain curvature, when the air control plate is close to the bottom of the air duct, the airflow area above is larger, and most of the airflow will blow towards the upper surface of the lens, and vice versa. This step eliminates the need to flip the lens for secondary cleaning. After loading, a single airflow cleans both sides, shortening the inspection cycle for a single piece. It is compatible with automated vision inspection production lines, eliminating the need for a flipping station and making the equipment structure simpler.

[0016] 2. With the cooperation of the fan and the dust-adhesive plate, the airflow discharged by the fan carries the dust on the surface of the lens through the opening and enters the interior of the air collection chamber. The dust is then blocked by the inclined surface of the inclined plate. The blocked dust falls to the bottom of the air collection chamber when the airflow stops, and is then adhered by the dust-adhesive plate at the bottom of the air collection chamber to prevent the dust from being re-flying and entering the gaps of other parts of the device, thereby reducing the service life of the device. Since lens production is mostly carried out in cleanrooms, the scattered dust can be collected and treated in a unified manner, which can reduce the risk of the cleanliness level of the workshop being reduced. The soundboard also absorbs the noise generated by the airflow, preventing the airflow from producing a whistling sound in a sealed environment, which would cause noise pollution and affect the working environment of the workshop. Subsequently, the airflow continues to flow on the inner wall of the sealed tube, and then the airflow is diverted and discharged by an irregular diverter to prevent the airflow from being too concentrated when discharged, which would cause the airflow to blow on other equipment near the device for a long time, resulting in long-term weathering of the equipment near the device and affecting its operating accuracy.

[0017] 3. With the cooperation of the drying chamber and the ventilation surface, the device introduces desiccant into the drying chamber before operation. Then, the airflow generated by the fan will be filtered by the desiccant inside the ventilation surface to remove moisture from the airflow before blowing on the lens itself. This step avoids water vapor carried by the airflow, which may leave water stains on the lens surface and prevent false detection. At the same time, it can also prevent damage to the optical lens coating and prevent lens corrosion and demolding. As the rotary rod rotates, it drives the ash-closing plate to rotate as well. During the rotation of the ash-closing plate, the desiccant inside the drying chamber is stirred, preventing the desiccant from being in contact with the unidirectional airflow for a long time, which would cause the desiccant to accumulate in a corner of the drying chamber and thus affect the dehumidification efficiency of the desiccant. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the tabletop structure of the present invention; Figure 3 This is the invention Figure 2 Enlarged schematic diagram of a portion of the structure at point A; Figure 4 This is a schematic diagram of the sealed plate structure of the present invention; Figure 5 This is the invention Figure 4 Enlarged schematic diagram of the structure at point B in the middle; Figure 6 This is an enlarged schematic diagram of the drying chamber mechanism of the present invention; Figure 7 This is a schematic diagram of the fan structure of the present invention; Figure 8 This is the invention Figure 7A magnified view of the structure at point C.

[0019] The markings in the diagram are as follows: 1. Testing desktop; 2. Testing head; 3. Airflow purification device; 301. Fan; 302. Tabletop; 303. Electric slide rail; 304. Sealed frame; 305. Ventilation slot; 306. Horizontal and vertical connecting plates; 307. Mirror clamping plate; 308. Bottom clamping pad; 309. Air duct slot; 310. Air control plate; 311. Rotating rod; 312. Knob; 4. Ash collection mechanism; 401. Air collection chamber; 402. Exit; 403. Inclined plate; 404. Ash-adhesive plate; 405. Sealed pipe; 406. Sound-receiving plate; 407. Diverter frame; 5. Drying mechanism; 501. Drying chamber; 502. Ventilation surface; 503. Rotating rod; 504. Rotating rod; 505. Ash-collecting plate; 6. Brightness meter. Detailed Implementation

[0020] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1-8 As shown, one embodiment of the present invention is a new material optical lens contamination detection device, including a detection table 1, a detection head 2 disposed on the top of the detection table 1, an airflow purification device 3 disposed on the top of the detection table 1, a dust collection mechanism 4 disposed on the top of the detection table 1, a drying mechanism 5 disposed on the top of the dust collection mechanism 4, and a brightness meter 6 disposed at the bottom of the dust collection mechanism 4. The airflow purification device 3 also includes a fan 301, a table 302, an electric slide rail 303, a sealed frame 304, a ventilation slot 305, a horizontal and vertical connecting plate 306, and an air duct 309. The fan 301 is installed on the top of the testing table 1, the table 302 is fixedly connected to the top of the testing table 1, the electric slide rail 303 is installed on the inner wall of the table 302, the sealed frame 304 is slidably connected to the inner wall of the electric slide rail 303, the ventilation slot 305 is opened on the outer wall of the sealed frame 304, the horizontal and vertical connecting plate 306 is fixedly connected to the outer wall of the sealed frame 304, and the air duct 309 is installed on the inner wall of the table 302.

[0022] The airflow purification device 3 also includes a clamping plate 307, a bottom clamping pad 308, and an air control plate 310. The clamping plate 307 is fixedly connected to the outer wall of the horizontal and vertical connecting plates 306, the bottom clamping pad 308 is fixedly connected to the outer wall of the clamping plate 307, and the air control plate 310 is swayably installed on the inner wall of the air duct 309. The air outlet of the fan 301 is located at the right end of the air duct 309.

[0023] The airflow purification device 3 also includes a rotating rod 311 and a knob 312. The rotating rod 311 is rotatably connected to the inner wall of the table 302, and the knob 312 is fixedly connected to the outer wall of the rotating rod 311. The air control plate 310 is fixedly connected to the rotating rod 311. As the air control plate 310 swings up and down, it can guide the airflow. Since the lens usually has a certain curvature, when the air control plate 310 is close to the bottom of the air duct 309, the air passage area above is larger, and most of the airflow will blow towards the upper surface of the lens.

[0024] The ash collection mechanism 4 includes an air collection chamber 401, an opening 402, and an inclined plate 403. The air collection chamber 401 is fixedly connected to the outer wall of the sealed frame 304, the opening 402 is opened on the outer wall of the air collection chamber 401, and the inclined plate 403 is fixedly connected to the inner wall of the air collection chamber 401.

[0025] The ash collection mechanism 4 also includes an ash-adhesive plate 404 and a sealed pipe 405. The ash-adhesive plate 404 is located at the bottom of the air collection chamber 401, and the sealed pipe 405 is located on the inner wall of the table 302. The sealed pipe 405 is connected to the air collection chamber 401.

[0026] The ash collection mechanism 4 also includes a sound-collecting plate 406 and a diversion frame 407. The sound-collecting plate 406 is fixedly connected to the inner wall of the sealed tube 405, and the diversion frame 407 is fixedly connected to the outer wall of the sealed tube 405. The distribution pattern of the diversion frame 407 is irregular. The airflow generated by the fan 301 is first filtered by the desiccant inside the ventilation surface 502 to remove moisture from the airflow before blowing on the lens itself. This step avoids water stains left on the lens surface due to the airflow carrying water vapor, thus preventing false detection. It also prevents damage to the optical lens coating.

[0027] Working Principle: When using the device, the optical lens is first placed between the sealed frames 304. Then, the device is activated, causing the sealed frames 304 to converge towards the center along the limit of the electric slide rail 303. During this convergence, the horizontal and vertical connecting plates 306 and the lens clamping plate 307 on the outer wall also converge towards the center. The lens clamping plate 307 then clamps and presses the lens, initially fixing it to the detection head 2. During the detection process, the fan 301 is activated, generating a strong airflow. This airflow is guided by the air duct 309 and blown towards the sealed frames 304. After passing through the sealed frames 304, the airflow passes through the ventilation slot 305 and then through the openings on the surface of the lens clamping plate 307, blowing onto the lens surface. Since the lens absorbs dust, fibers, and grinding debris during cutting, polishing, cleaning, and transportation, these are not easily visible to the naked eye. The airflow removes the floating dust, preventing dust from being mistaken for scratches. The removal of pitting and dirt defects significantly reduces the occurrence of false positives. Meanwhile, the coating on optical lenses easily generates static electricity, continuously attracting fine dust, resulting in dust settling again shortly after wiping. Flowing air neutralizes static electricity, maintaining cleanliness for a short time and ensuring stable continuous testing. During testing, the rotary knob 312 is manually rotated to drive the rotating rod 311. As the rod rotates, it causes the air control plate 310 on the inner wall of the air duct 309 to swing. The air control plate 310 guides the airflow. Since lenses typically have a certain curvature, when the air control plate 310 is near the bottom of the air duct 309, the upper airflow area is larger, and most of the airflow blows towards the upper surface of the lens, and vice versa. This step eliminates the need for flipping the lens for secondary cleaning; a single airflow cleans both sides after loading, shortening the single-piece testing cycle. It is compatible with automated vision inspection lines, eliminating the need for a flipping station, and also resulting in a simpler equipment structure.

[0028] Subsequently, the airflow discharged from the fan 301, carrying dust from the lens surface, passes through the port 402 and enters the interior of the air collection chamber 401. The dust is then blocked by the inclined surface of the inclined plate 403. The blocked dust falls to the bottom of the air collection chamber 401 when the airflow stops, and is then adhered to the dust-adhesive plate 404 at the bottom of the air collection chamber 401 to prevent secondary dust re-entry into the gaps of other components of the device, thus reducing the device's lifespan. Since lens production mostly takes place in cleanrooms, centralized collection and unified treatment of scattered dust can reduce the risk of a decrease in the cleanliness level of the workshop. The filtered airflow then passes through... The air intake chamber 401 enters the inner wall of the sealed tube 405, and then the airflow comes into contact with multiple sound-collecting plates 406, thereby reducing the impact force carried by the airflow. At the same time, the sound-collecting plates 406 also absorb the noise generated by the airflow, preventing the airflow from producing a whistling sound in the sealed environment, causing noise pollution and affecting the working environment of the workshop. Then the airflow continues to flow on the inner wall of the sealed tube 405, and then the airflow is diverted and discharged by the irregular diverter 407 to prevent the airflow from being too concentrated when discharged, causing the airflow to blow on other equipment near the device for a long time, resulting in long-term weathering of the equipment near the device and affecting its operating accuracy.

[0029] like Figures 1-8 As shown, based on the above embodiment, the drying mechanism 5 includes a drying chamber 501 and a breathable surface 502. The drying chamber 501 is disposed on the inner wall of the table 302 and is located between the fan 301 and the air duct 309. The breathable surface 502 is fixedly connected to the bottom of the drying chamber 501.

[0030] The drying mechanism 5 also includes a rotating rod 503 and a rotating rod 504. The rotating rod 503 is rotatably connected to the inner wall of the table 302, and the rotating rod 504 is rotatably connected to the inner wall of the drying chamber 501. The rotating rod 503 and the rotating rod 504 are fixedly connected, and the rotating rod 311 and the rotating rod 503 are connected by a belt pulley group for transmission.

[0031] The drying mechanism 5 also includes a dust-collecting plate 505, which is fixedly connected to the outer circumferential surface of the rotating rod 504. The interior of the drying chamber 501 is used to place the desiccant. The airflow generated by the fan 301 is first filtered by the desiccant inside the ventilation surface 502 to remove moisture from the airflow before blowing on the lens itself. This step avoids water vapor from the airflow, which may leave water stains on the lens surface and cause false detection.

[0032] Working principle: Before operation, desiccant is introduced into the drying chamber 501. The airflow generated by the fan 301 is then filtered by the desiccant inside the vent 502, removing moisture from the airflow before blowing onto the lens itself. This step prevents water vapor from the airflow from leaving water stains on the lens surface, thus avoiding false detection. It also prevents damage to the optical lens coating and prevents lens corrosion and demolding. During operation, the rotating knob 312 is manually rotated to drive the rotating rod 311. The rotating rod 311, through the pulley assembly, drives the rotating rod 503, which in turn drives the rotating rod 504. The rotating rod 504, in turn, drives the dust-collecting plate 505. The rotating plate 505 agitates the desiccant inside the drying chamber 501, preventing long-term contact between the desiccant and the unidirectional airflow, which could lead to localized accumulation of desiccant in a corner of the drying chamber 501, thus affecting the dehumidification efficiency.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel material optical lens contamination detection device, characterized in that, The device includes a detection table (1), a detection head (2) is provided on the top of the detection table (1), an airflow purification device (3) is provided on the top of the detection table (1), a dust collection mechanism (4) is provided on the top of the detection table (1), a drying mechanism (5) is provided on the top of the dust collection mechanism (4), and a brightness meter (6) is provided at the bottom of the dust collection mechanism (4). The airflow purification device (3) further includes a fan (301), a table (302), an electric slide rail (303), a sealed frame (304), a ventilation slot (305), a horizontal and vertical connecting plate (306), and an air duct slot (309). The fan (301) is set on the top of the testing table (1), the table (302) is fixedly connected to the top of the testing table (1), the electric slide rail (303) is set on the inner wall of the table (302), the sealed frame (304) is slidably connected to the inner wall of the electric slide rail (303), the ventilation slot (305) is opened on the outer wall of the sealed frame (304), the horizontal and vertical connecting plate (306) is fixedly connected to the outer wall of the sealed frame (304), and the air duct slot (309) is set on the inner wall of the table (302).

2. The novel material optical lens contamination detection device according to claim 1, characterized in that, The airflow purification device (3) also includes a clamping plate (307), a bottom clamping pad (308), and a wind control plate (310). The clamping plate (307) is fixedly connected to the outer wall of the horizontal connecting vertical plate (306), the bottom clamping pad (308) is fixedly connected to the outer wall of the clamping plate (307), and the wind control plate (310) is swayably installed on the inner wall of the air duct groove (309). The air outlet of the fan (301) is located at the right end of the air duct groove (309).

3. The novel material optical lens contamination detection device according to claim 2, characterized in that, The airflow purification device (3) also includes a rotating rod (311) and a knob (312). The rotating rod (311) is rotatably connected to the inner wall of the table (302), and the knob (312) is fixedly connected to the outer wall of the rotating rod (311). The air control plate (310) is fixedly connected to the rotating rod (311).

4. The novel material optical lens contamination detection device according to claim 3, characterized in that, The ash collection mechanism (4) includes an air collection chamber (401), an opening (402), and an inclined plate (403). The air collection chamber (401) is fixedly connected to the outer wall of the sealed frame (304), the opening (402) is opened on the outer wall of the air collection chamber (401), and the inclined plate (403) is fixedly connected to the inner wall of the air collection chamber (401).

5. The novel material optical lens contamination detection device according to claim 4, characterized in that, The ash collection mechanism (4) also includes an ash-adhesive plate (404) and a sealed tube (405). The ash-adhesive plate (404) is located at the bottom of the air collection chamber (401), and the sealed tube (405) is located on the inner wall of the table (302). The sealed tube (405) is connected to the air collection chamber (401).

6. The novel material optical lens contamination detection device according to claim 5, characterized in that, The ash collection mechanism (4) also includes a sound-collecting plate (406) and a diverter (407). The sound-collecting plate (406) is fixedly connected to the inner wall of the sealed tube (405), and the diverter (407) is fixedly connected to the outer wall of the sealed tube (405). The distribution pattern of the diverter (407) is irregular.

7. The novel material optical lens contamination detection device according to claim 6, characterized in that, The drying mechanism (5) includes a drying chamber (501) and a breathable surface (502). The drying chamber (501) is installed on the inner wall of the table (302). The drying chamber (501) is located between the fan (301) and the air duct (309). The breathable surface (502) is fixedly connected to the bottom of the drying chamber (501).

8. The novel material optical lens contamination detection device according to claim 7, characterized in that, The drying mechanism (5) also includes a rotating rod (503) and a rotating rod (504). The rotating rod (503) is rotatably connected to the inner wall of the table (302), and the rotating rod (504) is rotatably connected to the inner wall of the drying chamber (501). The rotating rod (503) and the rotating rod (504) are fixedly connected. The rotating rod (311) and the rotating rod (503) are connected by a belt pulley system.

9. The novel material optical lens contamination detection device according to claim 8, characterized in that, The drying mechanism (5) also includes a dust collector plate (505), which is fixedly connected to the outer circumferential surface of the rotating rod (504), and a desiccant is placed inside the drying chamber (501).

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