Microcrystalline glass strong-alkali-free cleaning method and grinding and cleaning integrated equipment

Abstract

The invention discloses a microcrystal glass strong-alkali-free cleaning method and grinding and cleaning integrated equipment, and the method comprises the following steps: placing to-be-cleaned microcrystal glass on a conveying line for conveying, and enabling the to-be-cleaned microcrystal glass to pass through a grinding station, a first cleaning station, a second cleaning station, a clean water dirt flushing station, a pure water flushing station, an air drying station, a drying station and a cooling station in sequence. A physical cleaning mode is adopted to replace strong acid and alkali liquor, oil stains attached to the surface of the microcrystalline glass are ground off through friction force, cleaning is more thorough under the condition that the surface of finished glass does not make contact with a strong acid and alkali cleaning agent, the middle insertion frame transportation link is omitted, manual turnover is omitted, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of microcrystalline glass cleaning technology, specifically to a microcrystalline glass cleaning method without strong alkali and an integrated grinding and cleaning device. Background Technology

[0002] Currently, microcrystalline glass is increasingly used in glass covers for mobile phones, smart wearable devices, automotive applications, and smart homes. However, existing microcrystalline glass cleaning solutions have some problems. While commonly used neutral cleaning agents are less corrosive to microcrystalline glass, their cleaning effect is poor. Microcrystalline glass covers cleaned with neutral cleaning agents often have residual dirt, resulting in inadequate cleanliness. This incomplete cleaning can cause a series of problems in subsequent processes, such as color discrepancies in pad printing and coatings, surface dirt, and film peeling, seriously affecting product quality and appearance.

[0003] In contrast, alkaline cleaning agents provide better cleaning results. After screen printing and baking, oil, dust, silicone ink, and other contaminants adhering to the surface of microcrystalline glass require soaking in a strong alkali (water:NaOH = 100:5, pH = 14) followed by rinsing with clean water to completely remove the dirt. This has little impact on conventional glass, but in microcrystalline glass, the crystal structure of the microcrystals is destroyed in the strong alkali, resulting in significant changes in detectable haze, B-value, and glass color. After cleaning with alkaline cleaning agents, the surface roughness of microcrystalline glass covers increases. When anti-fingerprint or AR coatings or inks are applied to microcrystalline glass covers, the higher surface roughness leads to poor adhesion of the coatings, easily causing them to peel off or resulting in discoloration. Summary of the Invention

[0004] The purpose of this application is to provide a method for cleaning microcrystalline glass without strong alkali and an integrated grinding and cleaning device, which has the advantages of thoroughly removing stains from the surface of microcrystalline glass without damaging the crystal structure and avoiding abnormal haze values ​​and color shifts.

[0005] This application provides a method for cleaning microcrystalline glass without strong alkali, the technical solution of which is as follows:

[0006] The microcrystalline glass to be cleaned is placed on the conveyor line and transported in sequence through the grinding station, the first cleaning station, the second cleaning station, the clean water rinsing station, the pure water rinsing station, the air drying station, the baking station, and the cooling station.

[0007] The grinding station sprays grinding powder onto the upper and lower surfaces of the microcrystalline glass. A grinding disc with a brush is used to clean and remove dirt from the surface of the microcrystalline glass by rotating the grinding disc and brush.

[0008] The first cleaning station uses a liquid cleaning agent with a pH value of 6.8-7.3 to clean the upper and lower surfaces of the microcrystalline glass.

[0009] The second cleaning station uses glass water with a pH value of 6-8 to clean the upper and lower surfaces of the microcrystalline glass.

[0010] The clean water rinsing station is used to clean the upper and lower surfaces of the microcrystalline glass.

[0011] The pure water rinsing station uses pure water to clean the upper and lower surfaces of the microcrystalline glass.

[0012] The air-drying station uses air to dry water stains on the upper and lower surfaces of the microcrystalline glass;

[0013] The drying station uses heating tubes to raise the temperature of the microcrystalline glass, thereby drying the residual water stains on the upper and lower surfaces of the microcrystalline glass.

[0014] In the cooling station, air is blown onto the microcrystalline glass to cool it down until it reaches room temperature, resulting in cleaned microcrystalline glass.

[0015] Furthermore, this application also proposes that in the grinding station, the grinding discs on the upper surface of the microcrystalline glass and the grinding discs on the lower surface of the microcrystalline glass rotate in opposite directions, and cleaning and decontamination are carried out in opposite directions.

[0016] Furthermore, this application also proposes that the grinding powder is a polishing powder composed of cerium oxide and lanthanum oxide in a mass percentage ratio of 65%:35%.

[0017] Furthermore, this application also proposes that at least one second cleaning station, a pure water cleaning station, and a drying station be set up, and when more than two stations are set up, they are arranged continuously.

[0018] Furthermore, this application also proposes an integrated equipment for cleaning microcrystalline glass without strong alkali using the above method, including a conveying mechanism, and a dry powder cleaning mechanism, a detergent cleaning mechanism, a glass cleaner cleaning mechanism, a clean water rinsing mechanism, a pure water cleaning mechanism, an air drying mechanism, a drying mechanism, and a cooling mechanism arranged sequentially along the conveying direction of the conveying mechanism. The detergent cleaning mechanism uses a detergent with a pH of 6.8-7.3 for cleaning, and the glass cleaner cleaning mechanism uses glass cleaner with a pH of 6-8 for cleaning. The conveying mechanism includes a transmission motor and several transmission rollers that are connected and extended, and the transmission rollers are connected to the transmission motor.

[0019] Furthermore, this application also proposes that the dry powder cleaning mechanism includes a grinding disc assembly installed above and below the transmission roller. The grinding disc assembly includes a grinding housing, a grinding disc, a grinding motor, and a grinding pipeline. The grinding disc is equipped with a brush, and a spray pipe is provided inside the grinding disc. The spray pipe is connected to the grinding pipeline. The grinding disc has a powder outlet, and the spray pipe extends to the powder outlet. The grinding motor is installed inside the grinding housing and is connected to the grinding disc through a transmission assembly. The grinding motor drives the grinding disc to rotate, and the grinding discs above and below the transmission roller rotate in opposite directions.

[0020] Furthermore, this application also proposes that the cleaning agent cleaning mechanism, the glass cleaner cleaning mechanism, the clean water rinsing mechanism, the pure water cleaning mechanism, and the air drying mechanism all include cleaning pipelines, with nozzles installed on the cleaning pipelines, and cleaning pipelines respectively installed above and below the transmission rollers.

[0021] Furthermore, this application also proposes that the drying mechanism includes heating tubes and temperature sensors, with several heating tubes respectively arranged above and below the conveyor rollers.

[0022] Furthermore, this application also proposes that the cooling mechanism includes several air ducts arranged above and below the transmission rollers; or that the cooling mechanism provides a low-temperature space for the refrigeration equipment.

[0023] Furthermore, this application also proposes that the dry powder cleaning mechanism, the detergent cleaning mechanism, the windshield washer fluid cleaning mechanism, the clean water rinsing mechanism, the pure water cleaning mechanism, the air drying mechanism, the drying mechanism, and the cooling mechanism are all installed inside the housing, and the housing is provided with covers and windows corresponding to the areas of the dry powder cleaning mechanism, the detergent cleaning mechanism, the windshield washer fluid cleaning mechanism, the clean water rinsing mechanism, the pure water cleaning mechanism, the air drying mechanism, the drying mechanism, and the cooling mechanism.

[0024] The present invention has the following beneficial technical effects:

[0025] This step-by-step cleaning process, combining neutral detergents with physical abrasion, achieves highly efficient cleaning while avoiding strong alkaline corrosion. It boasts the advantages of thoroughly removing stains from the surface of microcrystalline glass without damaging the crystal structure, and preventing abnormal haze and color shifts. The physical cleaning method uses friction to remove oil and dirt adhering to the glass surface, ensuring a more thorough cleaning without contact with strong acid or alkaline cleaning agents. Simultaneously, it reduces intermediate transport links, eliminates manual handling, improves efficiency, and lowers costs. Attached Figure Description

[0026] Figure 1 This is a flowchart illustrating the method in this invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the device in this invention;

[0028] Figure 3 This is a cross-sectional view of the device in this invention;

[0029] Figure 4 This is a schematic diagram of the grinding station in this invention;

[0030] Figure 5 This is a partial schematic diagram of the conveying mechanism in this invention;

[0031] Figure 6 This is a cross-sectional structural diagram of the cleaning agent cleaning mechanism in this invention;

[0032] Figure 7 This is a cross-sectional structural diagram of the drying mechanism in this invention.

[0033] Figure label:

[0034] 1. Conveying mechanism; 2. Dry powder cleaning mechanism; 3. Detergent cleaning mechanism; 4. Glass cleaner cleaning mechanism; 5. Clean water rinsing mechanism; 6. Pure water cleaning mechanism; 7. Air drying mechanism; 8. Drying mechanism; 9. Cooling mechanism; 10. Housing; 11. Cleaning pipeline; 12. Microcrystalline glass; 13. Conveying roller; 14. Nozzle; 15. Heating tube. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0038] Example 1

[0039] refer to Figure 1 As shown, a method for cleaning microcrystalline glass without strong alkali is described below:

[0040] The microcrystalline glass to be cleaned is placed on a conveyor line and transported sequentially through a grinding station, a first cleaning station, a second cleaning station, a clean water rinsing station, a pure water rinsing station, an air drying station, a baking station, and a cooling station. Multiple pieces of microcrystalline glass can be transported side-by-side on the conveyor line simultaneously as needed to improve cleaning efficiency.

[0041] The grinding station sprays grinding powder onto the upper and lower surfaces of the microcrystalline glass. A grinding disc with a brush is used. The rotating grinding disc cleans and removes dirt from the surface of the microcrystalline glass through the brush. This pretreatment step removes surface deposits through mechanical friction. Specifically, a rotating grinding disc with a brush can be used. When the grinding disc rotates, it drives the grinding powder to contact the glass surface, mainly removing oil stains and pen marks from the microcrystalline glass manufacturing process.

[0042] The first cleaning station uses a liquid cleaner with a pH value of 6.8-7.3 to clean the upper and lower surfaces of the microcrystalline glass. Since the physical polishing and cleaning are done first, strong alkaline solutions are no longer needed. Therefore, within the pH range of 6.8-7.3, organic pollutants can be dissolved without corroding the microcrystalline structure, effectively removing abrasive powder and dirt from the surface of the microcrystalline glass.

[0043] The second cleaning station uses glass cleaner with a pH of 6-8 to clean the upper and lower surfaces of the microcrystalline glass. In this embodiment, two second cleaning stations are set up consecutively, and the glass cleaner is used for multiple cleaning cycles to ensure cleaning effectiveness. A weakly acidic to weakly alkaline glass cleaner is used for a second cleaning to further remove dirt.

[0044] The clean water rinsing station uses ordinary clean water, such as tap water, to rinse the upper and lower surfaces of the microcrystalline glass, removing any residual dirt from the finished glass surface.

[0045] The pure water rinsing station uses pure water to clean the upper and lower surfaces of the microcrystalline glass, thoroughly removing impurities and dirt from the surface of the finished glass.

[0046] The air-drying station uses air to dry water stains on the upper and lower surfaces of the microcrystalline glass.

[0047] The drying station uses heating elements to raise the temperature of the microcrystalline glass, drying any remaining water on its upper and lower surfaces. The temperature can be maintained between 50-80℃ to achieve complete drying and moisture evaporation.

[0048] In the cooling station, air is blown onto the microcrystalline glass to cool it down until it reaches room temperature, resulting in cleaned microcrystalline glass.

[0049] Specifically, the microcrystalline glass continuously passes through various processing stations on the conveyor line. At the grinding station, the upper and lower surfaces are simultaneously subjected to physical cleaning by rotating brushes and grinding powder; then it enters the first cleaning station, where a neutral detergent covers the glass surface through a spray system; at the second cleaning station, glass cleaner further breaks down stubborn stains; after rinsing with clean water to remove chemical residues, pure water rinsing ensures surface cleanliness; at the air drying station, high-pressure airflow removes surface water droplets; at the drying station, hot air evaporates the microscopic water film; and finally, at the cooling station, the glass is restored to room temperature.

[0050] Compared to existing technologies, conventional strong alkaline cleaning methods damage the microcrystalline structure and increase surface roughness. This solution, however, achieves equivalent cleaning results by combining physical abrasion with a neutral cleaning agent, completely avoiding the use of strong alkalis. Traditional methods require immersion in strong alkalis, while this solution achieves the same level of cleanliness using a weakly alkaline liquid without altering the glass's haze or surface morphology.

[0051] Through the above technical solution, this application effectively solves the problem of balancing cleanliness and material protection during the cleaning process of microcrystalline glass. While completely removing contaminants such as oil stains and silicone prints, it maintains the integrity of the microcrystalline structure, ensuring the adhesion of the film layer in subsequent coating or printing processes and avoiding the occurrence of adverse phenomena such as discoloration and peeling.

[0052] For better polishing and cleaning, in the grinding station, the upper and lower surfaces of the microcrystalline glass are polished and cleaned using grinding discs that rotate in opposite directions, clockwise and counterclockwise respectively. Each disc is driven by a separately controlled motor, generating relative motion through counter-rotation. Specifically, nylon or polyester fiber brushes are used, with the brushes rotating synchronously with the grinding discs to evenly spread the grinding powder onto the glass surface. The grinding powder is composed of cerium oxide and lanthanum oxide in a 65%:35% mass ratio. Cerium oxide performs the main grinding function, while lanthanum oxide fills the gaps between particles, reducing localized stress concentration. This ratio ensures that the polishing powder effectively removes oil and silicone residue while avoiding excessive grinding that could increase the surface roughness of the microcrystalline glass.

[0053] Specifically, when the microcrystalline glass enters the grinding station, the upper and lower grinding discs rotate in opposite directions; for example, the upper disc rotates clockwise while the lower disc rotates counterclockwise. This reverse rotation causes the brushes to create a cross-trajectory when they contact the glass surface, allowing the grinding powder to fully penetrate into the gaps between stains through bidirectional friction. Simultaneously, the shearing force generated by the reverse rotation prevents the grinding powder from accumulating in a single direction, thus improving the uniformity of surface cleaning. The internal spray pipes of the grinding discs continuously deliver grinding powder to the outlet, and the rotating brushes evenly sweep the powder onto the glass surface, achieving a synergistic effect of physical grinding and chemical adsorption for cleaning.

[0054] Through the above technical solution, this application can avoid the problem of localized powder accumulation caused by co-rotation, improve the efficiency of surface stain removal, and reduce the residual load in subsequent cleaning stations. The dynamic shear force generated by reverse rotation helps to remove stubborn oil stains and silicone prints, thereby reducing the risk of color mismatch or film peeling in subsequent processes, while avoiding damage to the microcrystalline structure by strong alkaline cleaning.

[0055] By using physical cleaning methods first, complete cleaning can be achieved without the need for strong alkalis, thus improving the cleaning quality.

[0056] Example 2

[0057] refer to Figure 2-7 As shown, an integrated equipment for cleaning microcrystalline glass without strong alkali using a method for cleaning microcrystalline glass without strong alkali includes a conveying mechanism 1, and a dry powder cleaning mechanism 2, a cleaning agent cleaning mechanism 3, a glass cleaner cleaning mechanism 4, a clean water rinsing mechanism 5, a pure water cleaning mechanism 6, an air drying mechanism 7, a drying mechanism 8, and a cooling mechanism 9 arranged sequentially along the conveying direction of the conveying mechanism 1. The cleaning agent cleaning mechanism uses a cleaning agent with a pH of 6.8-7.3 for cleaning, and the glass cleaner cleaning mechanism uses glass cleaner with a pH of 6-8 for cleaning. The conveying mechanism includes a transmission motor and several transmission rollers 13 that are connected and extended. The transmission rollers 13 are connected to the transmission motor, and the transmission motor drives the transmission rollers to rotate, thereby conveying the microcrystalline glass 12 forward.

[0058] The conveying mechanism refers to the mechanical structure used for the continuous transport of microcrystalline glass. Specifically, it can employ a motor-driven system to achieve synchronous rotation of multiple sets of conveying rollers. The stability and quantity of glass transported are controlled by the roller spacing and arrangement density. Figure 5 As shown, it can simultaneously convey four rows of microcrystalline glass, improving cleaning efficiency. The dry powder cleaning mechanism removes surface dirt through physical abrasion.

[0059] Specifically, the microcrystalline glass enters each functional area sequentially via conveyor rollers. First, it undergoes physical surface cleaning in a dry powder cleaning unit. This is followed by multi-stage cleaning with neutral detergent, glass cleaner, clean water, and pure water. Finally, it is air-dried, oven-dried, and cooled to complete the cleaning process. Each cleaning station employs a symmetrical spray structure to ensure double-sided cleaning, and the continuous rotation of the conveyor rollers enables automated assembly line operation. The pH value of the detergent and glass cleaner is controlled within the range of 6-8, which avoids strong alkali corrosion of the microcrystalline structure while maintaining stable surface roughness through a neutral environment.

[0060] Compared to existing technologies, traditional cleaning equipment relies on strong alkali immersion processes, leading to surface damage and increased roughness of the glass-ceramic. This solution achieves equivalent cleaning results by combining dry powder pretreatment with multi-stage neutral cleaning, eliminating the need for strong alkali. The symmetrical spray structure improves cleaning efficiency compared to single-sided cleaning equipment, while the continuous conveying mechanism reduces the risk of secondary contamination of the glass surface compared to intermittent cleaning equipment.

[0061] This application solves the problem of surface crystallization damage to microcrystalline glass caused by strong alkaline cleaning, while avoiding subsequent process defects caused by incomplete cleaning with neutral cleaning agents. The multi-stage cleaning process ensures complete removal of oil stains and silicone residues, the upper and lower double-sided spray structure improves cleaning uniformity, and the continuous operation mode of the conveyor mechanism improves production efficiency and reduces the need for manual intervention.

[0062] The dry powder cleaning mechanism 2 includes grinding disc assemblies installed above and below the transmission rollers. Each grinding disc assembly includes a grinding housing 21, a grinding disc 22, a grinding motor, and grinding pipelines. The grinding disc 22 is equipped with brushes and has a spray pipe 23 connected to the grinding pipelines. The grinding disc 22 has a powder outlet, and the spray pipe 23 extends to the outlet. The grinding motor is housed within the grinding housing and connected to the grinding disc via a transmission assembly. The grinding motor drives the grinding disc to rotate, with the grinding discs above and below the transmission rollers rotating in opposite directions. In this embodiment, eight grinding disc assemblies are symmetrically arranged above and below the transmission rollers. Four grinding discs are housed within a single grinding housing and can be driven by a single motor, for example, through gear transmission, allowing all four grinding discs to rotate simultaneously. The spray pipes inside the grinding discs do not rotate with them; their position is fixed by the connection to the grinding pipelines. During the grinding disc rotation, grinding powder is sprayed from the spray pipes and evenly onto the surface of the microcrystalline glass.

[0063] A brush is a flexible brush body used to contact glass surfaces and remove particles. It can be made of materials such as nylon or carbon fiber and generates cleaning force through rotation. A jet pipe is a channel that delivers abrasive powder to the powder outlet of the grinding disc. It can be made of wear-resistant metal tubing or a polymer flexible hose and connects to an external powder supply system. Opposite rotation means that the upper and lower grinding discs rotate clockwise and counterclockwise respectively, for example, driven by a gear set or an independent motor, creating relative motion to enhance cleaning efficiency.

[0064] Specifically, when the microcrystalline glass enters the dry powder cleaning area driven by the conveyor rollers, the abrasive powder is transported to the spray pipe through the abrasive powder pipeline and evenly sprayed onto the glass surface from the powder outlet. The abrasive discs rotate under the drive of the abrasive powder motor, causing the brushes to physically clean the upper and lower surfaces of the glass. Because the upper and lower abrasive discs rotate in opposite directions, the contact areas between the brushes and the glass surface create staggered friction, effectively removing oil and silicone residue adhering to the surface of the microcrystalline glass. The abrasive powder housing encloses the abrasive disc assembly to prevent powder scattering, while the transmission component transmits motor power to the abrasive discs.

[0065] Compared to existing technologies, traditional cleaning equipment relies on strong alkaline chemical soaking, which easily damages the microcrystalline structure. This solution, however, avoids the risk of chemical corrosion by combining physical cleaning with neutral detergents. Existing technologies with unidirectional rotating brushes are prone to leaving stains, while the design of the upper and lower grinding discs rotating in opposite directions improves cleaning coverage and reduces cleaning dead zones.

[0066] Through the above technical solution, this application can efficiently remove stubborn stains on the surface of microcrystalline glass by mechanical force without using strong alkali, avoiding chemical damage to the microcrystalline crystals. At the same time, the reverse rotating grinding disc design can improve cleaning uniformity and reduce the risk of color difference in pad printing or film peeling in subsequent processes, thereby improving product yield.

[0067] The cleaning agent cleaning mechanism 3, glass cleaner cleaning mechanism 4, clean water rinsing mechanism 5, pure water cleaning mechanism 6, and drying mechanism 7 all include cleaning pipes 11. Each cleaning pipe 11 is equipped with a nozzle 14. Cleaning pipes 11 are located above and below the transmission roller 13. These mechanisms have identical internal structures, and the cleaning pipes can be connected to appropriate external cleaning agents. For example, glass cleaner, ordinary clean water such as tap water, pure water, or other types of cleaning agents can be introduced into the cleaning pipes to achieve different cleaning functions. When air is introduced into the cleaning pipes, a drying effect is achieved.

[0068] The cleaning pipeline refers to the pipe structure used to transport cleaning agents, glass cleaner, clean water, pure water, or airflow. It can be implemented using stainless steel pipes or corrosion-resistant plastic pipes, and the fluid transport is driven by a pump or pressure device. The nozzle is a device that disperses the fluid into a uniform spray, specifically using fan-shaped nozzles or atomizing nozzles, and the spray angle is adjusted to cover the surface of the microcrystalline glass. The cleaning pipelines located above and below the transfer rollers mean that the pipes are arranged on the upper and lower sides of the glass transport path. Specifically, the pipe positions can be fixed by brackets, ensuring the nozzles are aligned with the upper and lower surfaces of the glass.

[0069] Specifically, the cleaning pipeline extends along the transport direction to each workstation area, with nozzles distributed in an array along the pipeline, forming a symmetrical layout with upper and lower rows of nozzles. As the microcrystalline glass moves with the transport rollers, the upper and lower nozzles simultaneously spray cleaning agent or rinsing medium. The liquid or airflow evenly covers both sides of the glass through the nozzles, rinsing away residual stains. The fan-shaped spray pattern of the nozzles creates a continuous coverage area, avoiding cleaning blind spots, and the synchronous operation of the upper and lower nozzles ensures consistent cleanliness on both sides.

[0070] Example 3

[0071] like Figure 2-7 As shown, the drying mechanism includes heating tubes 15 and a temperature sensor. Several heating tubes 15 are respectively arranged above and below the transmission roller 13. A control terminal can be set up. The temperature sensor and the heating tubes are both connected to the control terminal. The temperature sensor detects the current temperature in real time. The control terminal controls the start and stop of the heating tubes and adjusts the power.

[0072] The heating element can be implemented using a metal resistance wire heating element or a ceramic heating element. Its function is to uniformly heat the surface of the glass-ceramic glass through radiative heat conduction. The temperature sensor, a device used to detect changes in ambient temperature, can be implemented using a thermocouple or a thermistor. Its function is to monitor temperature changes in the drying area in real time, preventing damage to the crystal structure of the glass-ceramic glass surface due to excessive heat. The heating elements located above and below the conveyor rollers refer to multiple independent heating units arranged at intervals along the conveying direction. These can be implemented using parallel-arranged tubular heaters. Their function is to accelerate moisture evaporation through simultaneous heating from both top and bottom, while avoiding uneven heating of the glass caused by heating from only one side.

[0073] Specifically, when the microcrystalline glass enters the drying station, the heating tubes located above and below the conveyor rollers activate simultaneously, heating the upper and lower surfaces of the glass synchronously through thermal radiation. Temperature sensors collect real-time temperature data of the drying area, automatically adjusting the heating tube power when the temperature exceeds a set threshold. The several heating tubes distributed vertically create a gradient heating zone; for example, the heating tubes near the inlet use higher power to quickly raise the glass temperature, while the heating tubes at the outlet use lower power to avoid sudden temperature changes. This arrangement allows the microcrystalline glass to gradually heat up and be heated evenly during transport, ensuring that residual water is completely evaporated under controlled temperatures.

[0074] The cooling mechanism includes several air ducts arranged above and below the transmission rollers; or the cooling mechanism provides a low-temperature space for the refrigeration equipment.

[0075] Among them, the air duct refers to a tubular structure with airflow channels. It can be made of stainless steel or plastic. The air outlets are evenly distributed on the duct wall. An external fan delivers airflow into the duct, and the airflow blows onto the surface of the microcrystalline glass through the air outlet to achieve forced convection heat exchange.

[0076] Low-temperature space refers to a closed environment maintained by refrigeration equipment. Specifically, it can be constructed by using a compressor refrigeration system in conjunction with a heat insulation shell. Temperature sensors monitor and adjust the space temperature in real time, allowing the microcrystalline glass to complete heat exchange in a constant low-temperature environment.

[0077] Specifically, when using duct cooling, multiple horizontal ducts are arranged parallel to each other above and below the conveyor rollers, with the length of the ducts perpendicular to the conveying direction and each duct spaced at a predetermined interval. The ducts are connected to a centrifugal fan via flexible hoses. Upon startup, this creates a directional airflow perpendicular to the surface of the microcrystalline glass, carrying away heat from the glass surface and its interior. When using low-temperature space cooling, the refrigeration equipment controls the temperature within the sealed cavity below room temperature, for example, set at 15-25°C. After the microcrystalline glass enters this space with the conveyor rollers, it achieves uniform heat dissipation through natural convection and radiation.

[0078] The dry powder cleaning mechanism, detergent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, air drying mechanism, dryer, and cooling mechanism are all installed inside the housing. The housing is equipped with covers and viewing windows corresponding to the areas of the dry powder cleaning mechanism, detergent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, air drying mechanism, dryer, and cooling mechanism, which facilitates observation of the working process and allows for individual maintenance of each mechanism.

[0079] A viewing window is a transparent observation window set on the machine casing corresponding to each cleaning mechanism area. It can be made of tempered glass or acrylic material. By setting up the viewing window, the operating status of each station can be observed in real time, which makes it easy to adjust the cleaning parameters in a timely manner.

[0080] Specifically, the dry powder cleaning mechanism, detergent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, air drying mechanism, drying mechanism, and cooling mechanism are integrated inside the housing. The housing forms a continuous conveying path via transfer rollers. Covers and viewing windows are installed on the housing corresponding to each cleaning mechanism area. For example, a removable cover with a viewing window is installed in the dry powder cleaning area, while a fixed cover with a high-temperature resistant viewing window is installed in the drying area. During the cleaning process, operators can observe the cleaning status of the grinding disc brushes, the coverage area of ​​the detergent spray, and the stability of the drying temperature through the viewing windows. If any abnormalities are found, the corresponding area's cover can be opened for quick handling, avoiding a decrease in overall cleaning efficiency due to downtime for maintenance.

[0081] In this invention, the transmission rollers extend continuously in a straight line, passing sequentially through the dry powder cleaning mechanism, the detergent cleaning mechanism, the glass cleaner cleaning mechanism, the clean water rinsing mechanism, the pure water cleaning mechanism, the air drying mechanism, the drying mechanism, and the cooling mechanism, and finally output the cleaned finished product. The automatic cleaning reduces labor costs and improves efficiency.

[0082] It should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for cleaning microcrystalline glass without strong alkali, characterized in that, The method includes the following steps: The microcrystalline glass to be cleaned is placed on the conveyor line and transported in sequence through the grinding station, the first cleaning station, the second cleaning station, the clean water rinsing station, the pure water rinsing station, the air drying station, the baking station, and the cooling station. The grinding station sprays grinding powder onto the upper and lower surfaces of the microcrystalline glass. A grinding disc with a brush is used to clean and remove dirt from the surface of the microcrystalline glass by rotating the grinding disc and brush. The first cleaning station uses a liquid cleaning agent with a pH value of 6.8-7.3 to clean the upper and lower surfaces of the microcrystalline glass. The second cleaning station uses glass water with a pH value of 6-8 to clean the upper and lower surfaces of the microcrystalline glass. The clean water rinsing station is used to clean the upper and lower surfaces of the microcrystalline glass. The pure water rinsing station uses pure water to clean the upper and lower surfaces of the microcrystalline glass. The air-drying station uses air to dry water stains on the upper and lower surfaces of the microcrystalline glass; The drying station uses heating tubes to raise the temperature of the microcrystalline glass, thereby drying the residual water stains on the upper and lower surfaces of the microcrystalline glass. In the cooling station, air is blown onto the microcrystalline glass to cool it down until it reaches room temperature, resulting in cleaned microcrystalline glass.

2. The method for cleaning microcrystalline glass without strong alkali according to claim 1, characterized in that, In the grinding station, the grinding discs on the upper and lower surfaces of the microcrystalline glass rotate in opposite directions, and cleaning and decontamination are performed in opposite directions.

3. The method for cleaning microcrystalline glass without strong alkali according to claim 1, characterized in that, The grinding powder is a polishing powder composed of cerium oxide and lanthanum oxide in a mass percentage ratio of 65%:35%.

4. The method for cleaning microcrystalline glass without strong alkali according to claim 1, characterized in that, The second cleaning station, the pure water cleaning station, and the drying station are each provided at least once, and when there are more than two stations, they are arranged continuously.

5. A microcrystalline glass non-alkali grinding and cleaning integrated equipment using the method described in claim 1, characterized in that, It includes a conveying mechanism, and a dry powder cleaning mechanism, a detergent cleaning mechanism, a windshield washer fluid cleaning mechanism, a clean water rinsing mechanism, a pure water cleaning mechanism, an air drying mechanism, a drying mechanism, and a cooling mechanism arranged sequentially along the conveying direction of the conveying mechanism. The detergent cleaning mechanism uses a detergent with a pH of 6.8-7.3 for cleaning, and the windshield washer fluid cleaning mechanism uses windshield washer fluid with a pH of 6-8 for cleaning. The conveying mechanism includes a transmission motor and several transmission rollers that are connected and extended. The transmission rollers are connected to the transmission motor.

6. The integrated grinding and washing equipment for microcrystalline glass according to claim 5, characterized in that, The dry powder cleaning mechanism includes grinding disc assemblies installed above and below the transmission rollers. The grinding disc assembly includes a grinding housing, a grinding disc, a grinding motor, and a grinding pipeline. The grinding disc is equipped with a brush, and a spray pipe is provided inside the grinding disc. The spray pipe is connected to the grinding pipeline, and the grinding disc has a powder outlet. The spray pipe extends to the powder outlet. The grinding motor is installed inside the grinding housing and is connected to the grinding disc through a transmission assembly. The grinding motor drives the grinding disc to rotate. The grinding discs above and below the transmission rollers rotate in opposite directions.

7. The integrated grinding and washing equipment for microcrystalline glass according to claim 5, characterized in that, The cleaning agent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, and air drying mechanism all include cleaning pipelines, with nozzles installed on the cleaning pipelines. Cleaning pipelines are respectively installed above and below the transmission rollers.

8. The integrated grinding and washing equipment for microcrystalline glass according to claim 5, characterized in that, The drying mechanism includes heating tubes and temperature sensors, with several heating tubes arranged above and below the conveyor rollers.

9. The integrated grinding and washing equipment for microcrystalline glass according to claim 5, characterized in that, The cooling mechanism includes several air ducts arranged above and below the transmission rollers; or the cooling mechanism provides a low-temperature space for the refrigeration equipment.

10. The integrated grinding and washing equipment for microcrystalline glass according to claim 5, characterized in that, The dry powder cleaning mechanism, detergent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, air drying mechanism, drying mechanism, and cooling mechanism are all installed inside the housing. The housing is provided with covers and windows corresponding to the areas of the dry powder cleaning mechanism, detergent cleaning mechanism, glass cleaner cleaning mechanism, clean water rinsing mechanism, pure water cleaning mechanism, air drying mechanism, drying mechanism, and cooling mechanism.

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