An ultrasonic cleaning apparatus and an ultrasonic cleaning process
By designing a multi-chamber and buffer chamber staged preheating and drying process in the ultrasonic cleaning equipment, the problem of glass cover plate cracking due to thermal stress during the drying process is solved, improving the yield and saving energy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 广东省双十智能科技有限公司
- Filing Date
- 2024-07-30
- Publication Date
- 2026-07-07
AI Technical Summary
The glass cover cracks due to thermal stress caused by the temperature difference between the inside and outside during the drying process, which affects the yield.
Design an ultrasonic cleaning device comprising multiple chambers and a buffer chamber within a housing. Through the cooperation of a conveying mechanism and a sealing mechanism, the glass cover plate is preheated and dried in stages, reducing thermal stress.
By using a buffer chamber, the temperature gradient of the glass cover plate is gradual during the preheating and drying process, reducing thermal stress, increasing yield, and saving energy.
Smart Images
Figure CN118874944B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ultrasonic cleaning technology, and in particular to an ultrasonic cleaning device and ultrasonic cleaning process. Background Technology
[0002] With the increasing popularity of devices with screens, the market demand for glass covers is constantly growing. However, glass covers need to be cleaned during the cutting, polishing, and screen printing processes to ensure the cleanliness of the optical glass surface.
[0003] Glass covers are typically cleaned using an ultrasonic cleaner. An ultrasonic cleaner is a device that uses the physical cleaning principle of ultrasound. It generates thousands of tiny bubbles through vibration. These bubbles can peel off, remove, and emulsify dust, fingerprints, and other dirt attached to the surface of the glass cover, achieving a highly clean cleaning effect.
[0004] When glass covers are cleaned in an ultrasonic cleaner, they need to undergo processes such as washing, rinsing, rinsing, dehydration, and drying. In order to quickly dry the moisture on the surface of the glass cover, the temperature inside the dryer is relatively high. If the glass cover is directly sent into the dryer, the surface of the glass cover will be heated rapidly, while the temperature change inside the glass cover will be delayed. This results in a large temperature difference between the inside and outside of the glass cover, generating greater thermal stress, which can easily cause the glass cover to crack and affect the yield. Summary of the Invention
[0005] In order to reduce the impact of thermal stress during drying on the glass cover, this application provides an ultrasonic cleaning device and an ultrasonic cleaning process.
[0006] The ultrasonic cleaning equipment and ultrasonic cleaning process provided in this application adopt the following technical solution:
[0007] In a first aspect, this application provides an ultrasonic cleaning device, including a housing, wherein a first chamber, a buffer chamber and a second chamber that are interconnected are sequentially arranged inside the housing, a first fan and a first heating element are arranged in the first chamber, and a second fan and a second heating element are arranged in the second chamber;
[0008] A conveying mechanism, disposed within the housing, is used to convey a cleaning basket with a glass cover from the first chamber to the second chamber;
[0009] A closing mechanism is provided on both sides of the buffer chamber. When the cleaning basket is located in the first chamber, the closing mechanism closes and separates the first chamber and the second chamber. When the cleaning basket moves from the first chamber to the second chamber and enters the buffer chamber, it can push the closing mechanism to open and connect the first chamber and the second chamber.
[0010] By adopting the above technical solution, the conveying mechanism first transports the cleaning basket with the glass cover to the first chamber. At this time, the first chamber and the second chamber are separated by a sealing mechanism, and the glass cover is preheated in the first chamber. After a period of time, the conveying mechanism transports the cleaning basket with the glass cover to the buffer chamber. At this time, the sealing mechanism opens, connecting the first chamber and the second chamber. Therefore, the heat in the first chamber and the second chamber is dissipated into the buffer chamber, and the glass cover located in the buffer chamber can be heated steadily. Then, the conveying mechanism moves the cleaning basket with the glass cover to the second chamber. At this time, the first chamber and the second chamber are connected by a sealing mechanism. The enclosed mechanism separates the glass cover plate, which is then dried in the second chamber. Dividing the housing into two chambers allows for preheating of the glass cover plate before drying, reducing thermal stress generated when the glass cover plate is heated. The buffer chamber allows the glass cover plate to heat up gradually as it moves from the first chamber to the second chamber, further reducing the impact of thermal stress on the glass cover plate. In addition, because the buffer chamber separates the first and second chambers, heat in the second chamber does not easily diffuse rapidly into the first chamber during the transport of the glass cover plate, thus affecting the preheating effect of the first chamber on the glass cover plate.
[0011] Optionally, the closing mechanism includes a fixed plate, a movable plate, a first elastic element, and a connecting rope. Two fixed plates are provided, one located between the first chamber and the buffer chamber, and the other between the second chamber and the buffer chamber. Two movable plates are provided, corresponding to the two fixed plates. The movable plates are rotatably positioned on the side of the fixed plates closest to the conveying mechanism. The first elastic element connects the fixed plate and the movable plate, causing one end of the movable plate to tend to press against the conveying mechanism. The connecting rope is fixedly connected between the rotation axes of the two movable plates, allowing the other movable plate to rotate in the opposite direction when one movable plate rotates forward.
[0012] By adopting the above technical solution, under normal conditions, the end of the movable plate abuts against the surface of the conveying mechanism, separating the buffer chamber from the first chamber and the buffer chamber from the second chamber. When the conveying mechanism moves the cleaning basket with the glass cover, the cleaning basket can push the movable plate near the first chamber to rotate. This movable plate drives the movable plate near the second chamber to rotate in the opposite direction through the connecting rope, so that the two movable plates rotate towards each other. The buffer chamber is connected to the first chamber and the second chamber respectively, and the cleaning basket can move smoothly into the buffer chamber. When the conveying mechanism is running, the movable plate can be opened, so the movement of the movable plate does not require an additional power source, which is more energy-efficient.
[0013] Optionally, the conveying mechanism includes a conveyor belt and a limiting component disposed on the conveyor belt. The limiting component is provided in multiple sets and is spaced apart along the extension direction of the conveyor belt surface. The limiting component includes a limiting member and a second elastic member. The limiting member is slidably disposed on the conveyor belt surface in a direction perpendicular to the conveyor belt surface. One end of the limiting member is located on the outside of the conveyor belt. The second elastic member is connected between the limiting member and the conveyor belt. The second elastic member causes the limiting member to have a tendency to slide away from the conveyor belt.
[0014] By adopting the above technical solution, after the cleaning basket with the glass cover is placed on the conveyor belt, the cleaning basket will press down part of the limiting member, while the limiting members on both sides of the cleaning basket remain in their original state. Therefore, the limiting members on both sides of the cleaning basket can block the cleaning basket. When the conveyor belt is running, it can restrict the movement of the cleaning basket relative to the conveyor belt, so that when the conveyor belt drives the cleaning basket to move, the cleaning basket can smoothly push the movable plate to rotate.
[0015] Optionally, the limiting component includes a support rod and a support plate. The support rod is slidably inserted on the surface of the conveyor belt, and the support plate is fixedly connected to the end of the support rod located on the outside of the conveyor belt. The support plate is arranged along the width direction of the conveyor belt, and two adjacent support plates can abut against each other.
[0016] By adopting the above technical solution, under normal conditions, the multiple support plates in a horizontal state abut against each other, and the bottom end of the movable plate abuts against the top surface of the support plate. Therefore, the setting of the support plates helps to enhance the sealing of the first chamber and the second chamber, thereby reducing energy consumption.
[0017] Optionally, the air outlet of the first fan is located in the first chamber, and the air inlet of the first fan is connected to the side of the buffer chamber near the first chamber. The air outlet of the second fan is located in the second chamber, and the air inlet of the second fan is connected to the side of the buffer chamber near the second chamber.
[0018] By adopting the above technical solution, when the movable plate is opened, the first fan and the second fan can draw in the hot air that diffuses from the first chamber and the second chamber into the buffer chamber, and then discharge the hot air to the corresponding chamber, so that the heat energy is recycled and more energy-efficient.
[0019] Optionally, a partition is provided inside the buffer cavity, and the partition is located between the first fan and the second fan.
[0020] By adopting the above technical solution, the partition is designed so that most of the hot air diffused from the first chamber can be drawn in by the first fan, and most of the hot air diffused from the second chamber can be drawn in by the second fan, reducing the heat exchange between the first and second chambers. This helps to maintain the temperature stability in the first and second chambers and ensures the preheating and drying effect.
[0021] Optionally, the housing is provided with a ventilation hole for outside air to enter, and the ventilation hole is connected to the buffer chamber.
[0022] By adopting the above technical solution, when the movable plate is in the closed state, the first fan and the second fan can draw in outside air through the ventilation holes, thereby avoiding excessively high temperatures in the first chamber and the second chamber, which would affect the preheating and drying effect on the glass cover.
[0023] Optionally, a drying element is provided in the buffer cavity, and the drying element is located between the first fan and the air exchange hole and between the second fan and the air exchange hole.
[0024] By adopting the above technical solution, the drying component can dry the air drawn in from the outside and the air discharged from the first and second chambers, which helps to ensure the drying effect on the glass cover.
[0025] Optionally, a rotating drum is rotatably provided at the end of the movable plate away from its own rotation axis. The rotation axis of the rotating drum is parallel to the rotation axis of the movable plate, and an elastic pad that can abut against the conveying mechanism is fixedly connected to the outer side of the rotating drum.
[0026] By adopting the above technical solution, the rotating drum at the bottom of the movable plate is used to abut against the cleaning basket, so that the rotating drum can rotate during the movement of the cleaning basket, making it less likely for the cleaning basket to get stuck.
[0027] Secondly, this application provides an ultrasonic cleaning process based on any of the ultrasonic cleaning devices described above, the process comprising the following steps:
[0028] a. Transport the cleaning basket containing the glass cover to the ultrasonic cleaning station and perform ultrasonic cleaning on the glass cover.
[0029] b. Transport the cleaning basket containing the glass cover to the spray cleaning station to wash away the cleaning agent on the surface of the glass cover;
[0030] c. Transport the cleaning basket containing the glass cover to the ultrasonic rinsing station for further cleaning of the glass cover;
[0031] d. Lift the cleaning basket with the glass cover upwards from the ultrasonic rinsing station and slowly pull it out of the water;
[0032] e. Transport the cleaning basket containing the glass cover after slow dehydration to the first chamber and preheat the glass cover;
[0033] f. The conveying mechanism transports the cleaning basket containing the glass cover to the buffer chamber, so that the preheated glass cover is heated again.
[0034] g. The conveying mechanism transports the cleaning basket containing the glass cover to the second chamber to dry the glass cover;
[0035] h. Remove the dried cleaning basket with the glass cover from the conveyor mechanism.
[0036] By adopting the above technical solutions, the ultrasonic cleaning equipment achieves a high degree of automation and continuity in the cleaning process, thereby improving cleaning efficiency and quality.
[0037] In summary, this application includes at least one of the following beneficial technical effects:
[0038] 1. The buffer chamber connects the first chamber and the second chamber. When the cleaning basket is located in the buffer chamber, the preheated glass cover can be heated up slowly before drying, thereby reducing the temperature difference between the inside and outside of the glass cover, reducing thermal stress, reducing the chance of glass cover cracking, and improving the yield.
[0039] 2. The first and second fans can recover and reuse the hot air diffused from the first and second chambers, thereby reducing heat energy loss and making it more energy-efficient. Attached Figure Description
[0040] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0041] Figure 2 This is a schematic diagram of the internal structure of the drying system in an embodiment of this application;
[0042] Figure 3 This is a schematic diagram of the internal structure of the drying system from another perspective in an embodiment of this application;
[0043] Figure 4 This is a cross-sectional view of the conveying mechanism used in an embodiment of this application;
[0044] Figure 5 This is a schematic diagram of the structure when the movable plate and the cleaning basket are in contact in an embodiment of this application.
[0045] Reference numerals: 1. Shell; 11. First chamber; 111. First fan; 112. First heating element; 12. Second chamber; 121. Second fan; 122. Second heating element; 13. Third chamber; 131. Third fan; 132. Third heating element; 14. Buffer chamber; 141. Partition; 142. Ventilation hole; 15. Opening; 16. Cylinder; 17. Baffle; 2. Conveying mechanism; 21. Conveyor belt; 211. Chain plate; 22. Limiting device Components; 221, limiting component; 2211, support rod; 2212, support plate; 222, second elastic component; 3, closing mechanism; 31, fixed plate; 32, movable plate; 321, connecting plate; 3211, rope groove; 33, first elastic component; 34, connecting rope; 4, connecting pipe; 5, rotating drum; 6, return pipe; 7, feeding system; 8, conveying system; 9, cleaning system; 91, washing tank; 92, spray tank; 93, rinsing tank; 10, unloading system. Detailed Implementation
[0046] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0047] This application discloses an ultrasonic cleaning device. (Refer to...) Figure 1 The ultrasonic cleaning equipment includes a loading system 7, a conveying system 8, a cleaning system 9, an unloading system 10, and a drying system arranged sequentially. First, multiple glass covers are evenly arranged in a cleaning basket. Then, the cleaning basket is placed in the loading system 7, which then moves the cleaning basket containing the glass covers to the conveying system 8. The cleaning system 9 includes two washing tanks 91, one spray tank 92, and four rinsing tanks 93 arranged sequentially. The conveying system 8 places the cleaning basket containing the glass covers sequentially into the washing tank 91, the spray tank 92, and the rinsing tank 93, subjecting the glass covers to two ultrasonic washes, one spray wash, and four ultrasonic rinses. The unloading system 10 is located at the end of the conveying system 8. The conveying system 8 can transport the cleaned basket containing the glass cover to the unloading system 10. Then the unloading system 10 drives the cleaned basket to move upward for slow dehydration. After dehydration, the unloading system 10 drives the cleaned basket to the drying system to dry the glass cover in the cleaned basket.
[0048] Reference Figure 2 and Figure 3 The drying system includes a housing 1, which is vertically oriented. Both ends of the housing 1 have openings 15 for the movement of a washing basket. A cylinder 16 is fixedly connected to one side of each opening 15 on the housing 1. The piston rod of the cylinder 16 points vertically downwards, and a baffle 17 for closing the opening 15 is fixedly connected to the end of the piston rod. During drying, the baffle 17 closes the opening 15, thereby reducing heat loss to the outside.
[0049] The housing 1 contains a first chamber 11, a second chamber 12, a third chamber 13, and a buffer chamber 14 that are interconnected. The first chamber 11, the second chamber 12, and the third chamber 13 are spaced apart along the length of the housing 1; the first chamber 11 is located at one end near the feeding system 10. There are two buffer chambers 14, one of which is located between the first chamber 11 and the second chamber 12, and the other is located between the second chamber 12 and the third chamber 13; during drying, the temperature in the first chamber 11, the second chamber 12, and the third chamber 13 gradually increases.
[0050] Reference Figure 3 and Figure 4 The first chamber 11 is equipped with a first fan 111 and a first heating element 112 for preheating the glass cover. The first fan 111 is located at the top of the first chamber 11, with its outlet facing downwards. The first heating element 112 is an electric heating tube located below the outlet of the first fan 111. A return pipe 6 is also fixedly connected to the first chamber 11, with its two ends connected to the bottom and top of the first chamber 11, respectively, allowing the hot air in the first chamber 11 to circulate and ensuring even heat distribution. The second chamber 12 is equipped with a second fan 121 and a second heating element 122 for preliminary drying of the glass cover. The third chamber 13 is equipped with a third fan 131 and a third heating element 132 for further drying of the glass cover. Return pipes 6 for circulating hot air are also provided on the second chamber 12 and the third chamber 13.
[0051] A conveying mechanism 2 is arranged along its length inside the housing 1. Located below the first fan 111, the second fan 121, and the third fan 131, the conveying mechanism 2 transports a cleaning basket containing a glass cover from the first chamber 11 to the third chamber 13. During transport, the cleaning basket first enters the first chamber 11, allowing the glass cover to preheat for a period of time. Then, the conveying mechanism 2 transports the cleaning basket to a buffer chamber 14 between the first chamber 11 and the second chamber 12, where it remains for a period of time. Hot air from the first and second chambers 11 diffuses outward into the buffer chamber 14, allowing the temperature of the glass cover to rise gradually, reducing thermal stress. Next, the conveying mechanism 2 transports the cleaning basket to the second chamber 12 for initial drying of the glass cover. After a period of time, the conveying mechanism 2 transports the cleaning basket to the buffer chamber 14 between the second chamber 12 and the third chamber 13, allowing the temperature of the glass cover to rise smoothly again. Then, the conveying mechanism 2 transports the cleaning basket to the third chamber 13 to dry the glass cover again. Finally, the conveying mechanism 2 sends the cleaning basket out, and the cleaning basket can be removed from the conveying mechanism 2.
[0052] Reference Figure 4 The conveying mechanism 2 includes a conveyor belt 21 and multiple sets of limiting components 22 disposed on the conveyor belt 21. The conveyor belt 21 is a chain plate 211 type conveyor belt 21; the multiple sets of limiting components 22 are evenly spaced along the length extension direction of the conveyor belt 21, and the number of limiting components 22 is the same as the number of chain plates 211 of the conveyor belt 21, with each limiting component 22 disposed on a corresponding chain plate 211. The limiting component 22 includes a limiting member 221 and a second elastic member 222; the limiting member 221 includes a support rod 2211 and a support plate 2212, with two support rods 2211 disposed at both ends of the chain plate 211 respectively; the support rods 2211 slide through the chain plate 211 in a direction perpendicular to the plate surface of the chain plate 211. The support plate 2212 is fixedly connected to the end of the support rod 2211, and the support plate 2212 is located outside the chain plate 211. A limit block is fixedly connected to the end of the support rod 2211 away from the support plate 2212 to prevent the support rod 2211 from sliding directly out of the chain plate 211. The second elastic element 222 is a spring, which is fixedly connected between the support plate 2212 and the chain plate 211. The second elastic element 222 is in a compressed state, so that the support rod 2211 and the support plate 2212 always have a tendency to slide away from the conveyor belt 21. After the cleaning basket is placed on the conveyor belt 21, the limit member 221 under the cleaning basket is pressed down by the cleaning basket, while the limit members 221 at both ends of the cleaning basket remain in their original state under the action of the second elastic element 222. Therefore, the limit members 221 at both ends of the cleaning basket can restrict the movement of the cleaning basket relative to the conveyor belt 21, so that the conveyor belt 21 can better drive the cleaning basket to move; in addition, it can also ensure the stability of the cleaning basket during the conveying process.
[0053] Among them, the support plate 2212 is arranged along the width direction of the conveyor belt 21, the plate surface of the support plate 2212 is parallel to the plate surface of the corresponding chain plate 211, and the width of the support plate 2212 is the same as the width of the chain plate 211; therefore, the support plates 2212 at the top of the conveyor belt 21 can abut against each other, which helps to ensure the subsequent sealing.
[0054] Reference Figure 2 and Figure 4The housing 1 also includes a sealing mechanism 3, which consists of two sets, each corresponding to one of the two buffer chambers 14. The following description uses the buffer chamber 14 between the first chamber 11 and the second chamber 12 as an example. The sealing mechanism 3 includes a fixed plate 31, a movable plate 32, a first elastic element 33, and a connecting rope 34. Two fixed plates 31 are provided; one fixed plate 31 is fixedly connected between the first chamber 11 and the buffer chamber 14, and the other fixed plate 31 is fixedly connected between the second chamber 12 and the buffer chamber 14. The fixed plates 31 are vertically arranged and located above the conveyor belt 21. The bottom end of the fixed plate 31 is spaced apart from the conveyor belt 21, and the distance between the bottom end of the fixed plate 31 and the top surface of the conveyor belt 21 is greater than the height of the cleaning basket, allowing the cleaning basket to pass smoothly. Two movable plates 32 are provided, each corresponding to a fixed plate 31. The movable plate 32 is hinged to the bottom end of the corresponding fixed plate 31, and the hinge axis of the movable plate 32 is parallel to the width direction of the conveyor belt 21. The first elastic element 33 is a torsion spring, and two first elastic elements 33 are provided, each corresponding to one of the two fixed plates 31. The first elastic element 33 is connected between the fixed plate 31 and the corresponding movable plate 32. The first elastic element 33 is in a torsional state, so the first elastic element 33 makes the movable plate 32 vertical in the normal state. The bottom end of the movable plate 32 abuts against the support plate 2212 at the top of the conveyor belt 21, thereby enhancing the sealing of each chamber.
[0055] One end of the hinge shaft of the movable plate 32 extends out of the housing 1, and the end of the hinge shaft extending out of the housing 1 is coaxially and fixedly connected to the connecting plate 321. The connecting plate 321 has an annular rope groove 3211 on its periphery. The connecting rope 34 is a flexible rope and cannot be extended; both ends of the connecting rope 34 are respectively fixedly connected to the corresponding connecting plates 321 of the two movable plates 32, and the connecting rope 34 is located in the rope groove 3211. When the cleaning basket in the first chamber 11 slides into the buffer chamber 14, the cleaning basket pushes the movable plate 32 near the first chamber 11 to rotate upward. When this movable plate 32 rotates, it can drive the other movable plate 32 to rotate in the opposite direction through the connecting rope 34, so that the two movable plates 32 rotate toward each other to avoid the movement of the cleaning basket. When the cleaning basket is in the buffer chamber 14, the bottom ends of the two movable plates 32 are pressed against the top of the cleaning basket. After the cleaning basket moves into the second chamber 12, under the action of the first elastic member 33, the two movable plates 32 rotate toward the side away from each other until the movable plates 32 rotate to the vertical position, and the buffer chamber 14 is closed again, separating the first chamber 11 and the second chamber 12.
[0056] The movable plate 32 has a rotating drum 5 hinged to the end away from the fixed plate 31. The rotation axis of the rotating drum 5 is parallel to the hinge axis of the movable plate 32. An elastic pad made of rubber is fixedly sleeved on the outer surface of the rotating drum 5. When the movable plate 32 is in a vertical state, the bottom end of the elastic pad abuts against the support plate 2212 at the top of the conveyor belt 21. When the conveyor belt 21 drives the cleaning basket to move, the cleaning basket can push the movable plate 32 to rotate. The rotating drum 5 at the end of the movable plate 32 can rotate during the process of abutting against the cleaning basket, thereby reducing the possibility of the cleaning basket being stuck by the end of the movable plate 32 during the movement.
[0057] To improve heat utilization efficiency, connecting pipes 4 are connected between the air inlet of the first fan 111 and the buffer chamber 14, and between the air inlet of the second fan 121 and the buffer chamber 14. When the movable plate 32 is opened, the hot air in the first chamber 11 and the second chamber 12 will diffuse into the buffer chamber 14. Then, this hot air will be drawn in by the first fan 111 and the second fan 121 and discharged back into the first chamber 11 and the second chamber 12, thereby enabling the hot air in the first chamber 11 and the second chamber 12 to form an effective circulation and improve the heat utilization efficiency.
[0058] Furthermore, referring to Figure 3 A partition 141 is fixedly connected inside the buffer chamber 14. The partition 141 is vertically arranged and located in the middle of the buffer chamber 14. The partition 141 can divide the space inside the buffer chamber 14 into two parts. Therefore, most of the hot air diffused from the first chamber 11 can be drawn in by the first fan 111, and most of the hot air diffused from the second chamber 12 can be drawn in by the second fan 121, which helps to ensure the stability of the internal temperature of the first chamber 11 and the second chamber 12.
[0059] The housing 1 is also provided with a ventilation hole 142 that communicates with the buffer chamber 14. There are two ventilation holes 142, which are located on both sides of the partition 141 respectively. Therefore, when the movable plate 32 is in the closed state, the first fan 111 and the second fan 121 can draw in outside air through the ventilation hole 142, thereby avoiding overheating in the first chamber 11 and the second chamber 12 and ensuring that the internal temperature field can remain stable during long-term operation of the equipment.
[0060] Furthermore, a drying element is also fixedly connected inside the buffer chamber 14. The drying element is located below the air inlet of the connecting pipe 4 and above the air exchange hole 142. The drying element includes a mounting frame plate and an activated carbon layer disposed in the mounting frame plate. Therefore, the drying element can dry the air drawn in by the first fan 111 and the second fan 121, thereby ensuring the drying effect.
[0061] The implementation principle of an ultrasonic cleaning device according to an embodiment of this application is as follows: the feeding system 7 transports the cleaning basket with the glass cover plate to the conveying system 8, the conveying system 8 sends the cleaning basket into the cleaning system 9 for cleaning; after cleaning, the conveying system 8 then transports the cleaning basket to the unloading system 10, first slowly lifting the cleaning basket upwards to dehydrate the glass cover plate; then the unloading system 10 sends the cleaning basket into the drying system for drying.
[0062] During drying, the feeding system 10 first sends the cleaning basket into the first chamber 11. The cleaning basket stays in the first chamber 11 for a period of time to preheat the glass cover. Then the conveyor belt 21 operates, driving the cleaning basket to move. As the cleaning basket moves, it pushes the movable plate 32 to rotate until the cleaning basket moves into the buffer chamber 14 between the first chamber 11 and the second chamber 12. At this time, the rotating cylinders 5 at the bottom of the two movable plates 32 are in contact with the top surface of the cleaning basket. The first chamber 11 and the second chamber 12 are both connected to the buffer chamber 14. The hot air in the first chamber 11 and the second chamber 12 diffuses into the buffer chamber 14, and the glass cover located in the buffer chamber 14 can be heated steadily.
[0063] Next, the conveyor belt 21 operates again, moving the cleaning basket into the second chamber 12 for initial drying of the glass cover. At this time, both movable plates 32 are in a vertical position, separating the first chamber 11 and the second chamber 12. After a period of time, the conveyor mechanism 2 transports the cleaning basket to the buffer chamber 14 between the second chamber 12 and the third chamber 13, where the glass cover heats up steadily again. Then, the conveyor belt 21 transports the cleaning basket into the third chamber 13 for further drying of the glass cover. After drying is complete, the conveyor mechanism 2 removes the cleaning basket from the housing 1, and the cleaning basket can be removed.
[0064] This application also discloses an ultrasonic cleaning process, including the following steps:
[0065] a. The feeding system 7 transports the cleaning basket with the glass cover to the conveying system 8, and the conveying system 8 then transports the cleaning basket with the glass cover to the two washing tanks 91 in sequence to perform ultrasonic washing on the glass cover twice.
[0066] b. The conveying system 8 then transports the cleaning basket to the spray tank 92, where the residual cleaning agent on the surface of the glass cover is washed away by spraying.
[0067] c. The conveying system 8 then transports the cleaning basket to the four rinsing tanks 93 in sequence to perform a more thorough ultrasonic rinsing of the glass cover to remove tiny dirt and ensure that the cleanliness of the glass cover meets the requirements of subsequent processing.
[0068] d. After ultrasonic rinsing is completed, the conveying system 8 transports the cleaning basket to the unloading system 10. The unloading system 10 slowly lifts the cleaning basket upwards to slowly pull and dehydrate the glass cover plate, removing most of the water adhering to the surface of the glass cover plate, in preparation for subsequent preheating and drying.
[0069] e. The unloading system 10 transports the cleaning basket into the first chamber 11 and uses the heat generated by the first heating element 112 to preheat the glass cover.
[0070] f. The conveyor belt 21 transports the cleaning basket to the buffer chamber 14, where the preheated glass cover will be heated steadily. The preheated glass cover can gradually absorb the heat transferred from the second chamber 12 in the buffer chamber 14, achieving a stable temperature transition, thus avoiding large thermal stress caused by excessive temperature difference.
[0071] g. The conveyor belt 21 transports the cleaning basket to the second chamber 12, where the glass cover is pre-dried using the higher temperature generated by the second heating element 122. Due to the preparation of the preheating and buffering stages, the temperature difference between the inside and outside of the glass cover has been greatly reduced, thus significantly reducing the thermal stress generated during the drying process and effectively avoiding the problem of the glass cover cracking due to thermal stress.
[0072] h. The conveyor belt 21 sequentially sends the cleaning basket to the next buffer chamber 14 and the third chamber 13, so that the glass cover plate can be heated up again and then dried.
[0073] i. The conveyor belt 21 delivers the dried cleaning basket containing the glass cover plate from the housing 1, completing the cleaning and drying process of the glass cover plate. At this time, the surface cleanliness of the glass cover plate not only meets the requirements, but also the yield is significantly improved due to the effective control of thermal stress during the preheating, buffering and drying process.
[0074] The above are optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An ultrasonic cleaning device, characterized in that, include: The housing (1) is provided with a first chamber (11), a buffer chamber (14) and a second chamber (12) that are interconnected. The first chamber (11) is provided with a first fan (111) and a first heating element (112). The second chamber (12) is provided with a second fan (121) and a second heating element (122). The conveying mechanism (2) is disposed inside the housing (1) and is used to convey the cleaning basket with the glass cover from the first chamber (11) to the second chamber (12); The closing mechanism (3) is located on both sides of the buffer chamber (14). When the cleaning basket is located in the first chamber (11), the closing mechanism (3) closes and separates the first chamber (11) and the second chamber (12). When the cleaning basket moves from the first chamber (11) to the second chamber (12) and enters the buffer chamber (14), it can push the closing mechanism (3) to open and make the first chamber (11) and the second chamber (12) connected. The closing mechanism (3) includes a fixed plate (31), a movable plate (32), a first elastic element (33), and a connecting rope (34). Two fixed plates (31) are provided, one located between the first chamber (11) and the buffer chamber (14), and the other located between the second chamber (12) and the buffer chamber (14). Two movable plates (32) are provided, corresponding to the two fixed plates (31). The movable plates (32) rotate. The first elastic element (33) is located on the side of the fixed plate (31) near the conveying mechanism (2). The first elastic element (33) is connected between the fixed plate (31) and the movable plate (32). The first elastic element (33) causes one end of the movable plate (32) to tend to press against the conveying mechanism (2). The connecting rope (34) is fixedly connected between the rotation shafts of the two movable plates (32). The connecting rope (34) causes one movable plate (32) to rotate in the forward direction and drive the other movable plate (32) to rotate in the reverse direction.
2. The ultrasonic cleaning equipment according to claim 1, characterized in that: The conveying mechanism (2) includes a conveyor belt (21) and a limiting component (22) disposed on the conveyor belt (21). The limiting component (22) is provided in multiple sets and is spaced apart along the extension direction of the conveyor belt (21). The limiting component (22) includes a limiting member (221) and a second elastic member (222). The limiting member (221) is slidably disposed on the conveyor belt (21) in a direction perpendicular to the conveyor belt (21). One end of the limiting member (221) is located on the outside of the conveyor belt (21). The second elastic member (222) is connected between the limiting member (221) and the conveyor belt (21). The second elastic member (222) causes the limiting member (221) to have a tendency to slide away from the conveyor belt (21).
3. The ultrasonic cleaning equipment according to claim 2, characterized in that: The limiting member (221) includes a support rod (2211) and a support plate (2212). The support rod (2211) is slidably inserted on the surface of the conveyor belt (21). The support plate (2212) is fixedly connected to one end of the support rod (2211) located outside the conveyor belt (21). The support plate (2212) is arranged along the width direction of the conveyor belt (21), and two adjacent support plates (2212) can abut against each other.
4. The ultrasonic cleaning equipment according to claim 1, characterized in that: The air outlet of the first fan (111) is located in the first chamber (11), and the air inlet of the first fan (111) is connected to the side of the buffer chamber (14) near the first chamber (11). The air outlet of the second fan (121) is located in the second chamber (12), and the air inlet of the second fan (121) is connected to the side of the buffer chamber (14) near the second chamber (12).
5. The ultrasonic cleaning equipment according to claim 4, characterized in that: The buffer cavity (14) is provided with a partition (141), which is located between the first fan (111) and the second fan (121).
6. The ultrasonic cleaning equipment according to claim 4, characterized in that: The housing (1) is provided with an air exchange hole (142) for outside air to enter, and the air exchange hole (142) is connected to the buffer chamber (14).
7. An ultrasonic cleaning device according to claim 6, characterized in that: The buffer chamber (14) is provided with a drying element, which is located between the first fan (111) and the air exchange hole (142) and between the second fan (121) and the air exchange hole (142).
8. The ultrasonic cleaning equipment according to claim 1, characterized in that: The movable plate (32) has a rotating cylinder (5) rotatably mounted at one end away from its own rotation axis. The rotation axis of the rotating cylinder (5) is parallel to the rotation axis of the movable plate (32). An elastic pad that can abut against the conveying mechanism (2) is fixedly connected to the outside of the rotating cylinder (5).
9. An ultrasonic cleaning process, based on the ultrasonic cleaning equipment according to any one of claims 1-8, characterized in that: The process includes the following steps: a. Transport the cleaning basket containing the glass cover to the ultrasonic cleaning station and perform ultrasonic cleaning on the glass cover. b. Transport the cleaning basket containing the glass cover to the spray cleaning station to wash away the cleaning agent on the surface of the glass cover; c. Transport the cleaning basket containing the glass cover to the ultrasonic rinsing station for further cleaning of the glass cover; d. Lift the cleaning basket with the glass cover upwards from the ultrasonic rinsing station and slowly pull it out of the water; e. Transport the cleaning basket containing the glass cover after slow dehydration to the first chamber (11) and preheat the glass cover; f. The conveying mechanism (2) transports the cleaning basket containing the glass cover to the buffer chamber (14), so that the preheated glass cover is heated again. g. The conveying mechanism (2) transports the cleaning basket containing the glass cover to the second chamber (12) to dry the glass cover; h. Remove the dried cleaning basket with the glass cover from the conveying mechanism (2).