A multi-functional glass glaze filter mixer

Abstract

This application relates to the field of glaze pretreatment technology in glass processing, and discloses a multifunctional glass glaze filter mixer. It includes a filter mixer control panel, a lifting frequency control spring, a rotary valve, a glass glaze adding funnel, a switch valve, a stirring head, a screen replacement valve, a glass glaze tank, a filter mixer support, and a filter mixer fixed balance bar. The glass glaze tank is mounted on the filter mixer support, and a lid is threaded onto the tank. The lid has a glass glaze adding funnel, and the switch valve is located in the channel of the glass glaze adding funnel. The filter mixer control panel is mounted on the filter mixer support and includes at least an up button, a down button, and a rotary button. The lifting frequency control spring is located above the lid. This application provides an integrated, automated, multifunctional device that achieves efficient filtration during the mixing process, while simultaneously solving problems related to clogging, contamination, and parameter adjustment.

Description

Technical Field

[0001] This application relates to the field of glaze pretreatment technology in the glass processing industry, and in particular to a multifunctional glass glaze filter mixer. Background Technology

[0002] In photovoltaic glass screen printing, the pretreatment quality of the glass enamel directly affects the screen printing accuracy and product yield. In traditional glass enamel preparation processes, stirring and filtration are usually performed independently, and the filtration equipment often uses open-mesh sieves or single-mesh screens, which presents the following technical bottlenecks:

[0003] 1. Low efficiency: Stirring and filtering are done in separate steps, taking a total of 40-90 minutes. In addition, high-viscosity glazes rely on natural gravity for filtration, resulting in slow flow rates, which makes it difficult to meet the needs of efficient industrial production.

[0004] 2. Incomplete filtration: The accuracy of manually matching the mesh size is insufficient, and large-aperture mesh is preferred to increase speed, resulting in the residue of large particles of impurities, which can easily clog the screen and cause pattern defects during screen printing;

[0005] 3. High maintenance costs: The open structure is susceptible to environmental contamination. Particles accumulate and clog the mesh, requiring frequent manual stirring. In addition, traditional mesh has poor wear resistance and requires frequent replacement.

[0006] 4. Cumbersome operation: Pressure control relies on low pressure or natural gravity, and the stirring position and frequency require manual intervention. It lacks an automated adjustment mechanism and is difficult to adapt to the filtration needs of glazes with different viscosities.

[0007] In existing technologies, the mixing and filtering equipment are functionally separate, and the pressure control, mesh cleaning, and sealing design of the filtration process have significant defects, making the glaze pretreatment stage a key bottleneck restricting the efficiency and quality of screen printing. There is an urgent need for an integrated, automated, multi-functional device that achieves efficient filtration during the mixing process while simultaneously solving problems related to clogging, contamination, and parameter adjustment. Summary of the Invention

[0008] This application provides a multifunctional glass glaze filter mixer, which aims to solve the problem in the prior art where the mixing equipment and the filtration equipment are functionally separated, and the pressure control, mesh cleaning and sealing design of the filtration process have significant defects, making the glaze pretreatment stage a key bottleneck restricting the efficiency and quality of screen printing.

[0009] In a first aspect, this application provides a multifunctional glass glaze filter mixer, including a filter mixer control panel, a lifting frequency control spring, a rotary valve, a glass glaze adding funnel, a switch valve, a stirring head, a screen replacement valve, a glass glaze tank, a filter mixer support, and a filter mixer fixed balance bar; the glass glaze tank is mounted on the filter mixer support, and the glass glaze tank is connected to a lid via threads. A glass glaze adding funnel is mounted on the lid, and the switch valve is located in the channel of the glass glaze adding funnel; the filter mixer control panel is mounted on the filter mixer support, and the filter mixer control panel has at least an up button, a down button, and a turn button; the lifting frequency control spring is located above the lid, and the lifting frequency control spring contains a rotation control line, which... The control line connects to the stirring rod, which is connected to the lid via a rotary valve. The rotary valve is made of spherical beads to reduce the rotational resistance of the stirring rod. A stirring head with a stirring brush is located at the lower end of the stirring rod. The stirring rod is raised and lowered using up and down buttons. At the lowest point, the stirring brush contacts the mesh surface to clean particles from the mesh. The rotary button controls the rotation of the stirring rod to achieve stirring and cleaning by the stirring head. The glass enamel tank contains replaceable high-strength composite mesh, and a mesh replacement valve is located on the corresponding tank body for easy mesh replacement. Filtration occurs during the stirring of the glass enamel. By adjusting the pressure and stirring position, filtration is achieved simultaneously with stirring. The sealed glass enamel tank uses threaded connections to reduce contact between the glass enamel and air, and to minimize odor emissions.

[0010] In some embodiments, controlling the raising and lowering of the stirring rod via the up and down buttons, with the stirring brush contacting the mesh surface at the lowest point to clean particles on the mesh, includes: the two ends of the raising and lowering frequency control spring are respectively connected to the filter mixer bracket and the stirring rod, and the elastic deformation of the spring limits the raising and lowering stroke of the stirring rod to prevent excessive raising and lowering; a guide rail is provided on the outside of the stirring rod, which slides in cooperation with the guide groove on the bucket lid to ensure that the stirring rod moves in the vertical direction when it is raised and lowered, so that the stirring brush contacts the mesh surface with uniform pressure, thereby achieving effective cleaning of particles on the mesh surface.

[0011] In some embodiments, the filtration process during the stirring of the glass glaze, achieved by adjusting the pressure and stirring position, includes: a pressure port is provided at the top of the glass glaze tank, which is connected to a low-pressure air source via a hose; the control panel of the filter mixer has a built-in pressure sensor and controller, which can adjust the pressure according to the viscosity parameters of the glass glaze; the lifting position of the stirring rod corresponds to multiple stirring zones; when the stirring head is located in the upper part of the tank, the glaze is mixed by the rotation of the stirring brush; when it descends to the surface of the mesh, the mesh is cleaned and pressure filtration is performed, so that the glaze passes through the high-strength composite mesh under pressure, while large particles of impurities remain above the high-strength composite mesh.

[0012] In some embodiments, controlling the rotation of the stirring rod to achieve stirring and cleaning of the stirring head includes: the stirring brush of the stirring head is made of elastic wear-resistant material and is distributed in a spiral shape around the circumference of the stirring head; when the stirring rod is rotated at low speed by the turn button, the stirring brush stirs the glass glaze clockwise or counterclockwise to prevent particle sedimentation; when a decrease in filtration speed is detected, the filter mixer control panel switches to high-speed rotation mode, and the stirring brush cleans the mesh surface in a high-frequency reciprocating rotation manner to remove clogging particles, and the stirring rod is controlled to rise and fall slightly to enhance the cleaning effect.

[0013] In some embodiments, the mesh replacement valve includes a rectangular opening disposed on the side wall of the glass enamel tank. The opening edge of the rectangular opening is provided with an annular groove. The high-strength composite mesh is fixed in the annular groove by a detachable elastic pressure ring. A rotary lock is provided on the outer side of the elastic pressure ring. The high-strength composite mesh can be quickly replaced by adjusting the tightness of the rotary lock. A sealing ring is provided on the inner side of the mesh replacement valve to ensure that the sealing of the tank is not compromised during the replacement process.

[0014] In some embodiments, the control panel of the filter mixer has a built-in intelligent control module. The intelligent control module has multiple preset filtration programs, each corresponding to a high-strength composite mesh with a different mesh size. It can automatically match the mesh size of the mesh according to the mesh size of the screen printing plate, and adjust the stirring frequency, pressure and cleaning cycle to achieve intelligent configuration of filtration parameters.

[0015] In some embodiments, the high-strength composite mesh is made of stainless steel wire and polytetrafluoroethylene fiber interwoven, with a mesh count ranging from 200 to 400 meshes. The mesh surface is coated with a nano-level anti-stick coating, which is used to reduce particle adsorption and, in conjunction with the cleaning action of the stirring brush, further reduces mesh clogging.

[0016] In some embodiments, the device further includes a micro air pump and a pressure regulating valve. The micro air pump is electrically connected to the control panel of the filter mixer. The target pressure value is input through the control panel of the filter mixer. The pressure regulating valve provides real-time feedback on the internal pressure of the glass glaze tank and automatically calibrates the pressure, so that the pressurization pressure is continuously adjustable within the range of 0.1-0.5 MPa to adapt to glass glazes of different viscosities.

[0017] In some embodiments, the surface of the spherical ball of the rotary valve is provided with a spiral guide groove. When the stirring rod rotates, the guide groove guides the lubricating oil to form a lubricating film between the spherical ball and the valve seat, reducing the rotational friction torque. The inclined angle design of the guide groove allows the stirring rod to drive the spherical ball to swing slightly during the lifting and lowering process, avoiding the rotation control line from getting tangled.

[0018] In some embodiments, the filter mixer's fixed balance bar includes adjustable feet symmetrically arranged at the bottom of the filter mixer support. The adjustable feet are threadedly connected to the filter mixer support, and the bottom of the adjustable feet is provided with an anti-slip rubber pad. By rotating the adjustable feet, the level of the multi-functional glass glaze filter mixer can be adjusted to ensure the stability of the multi-functional glass glaze filter mixer during the mixing process and reduce mesh shifting or glaze splashing caused by vibration.

[0019] The multifunctional glass glaze filter mixer provided in this application includes a filter mixer control panel, a lifting frequency control spring, a rotary valve, a stirring head, and high-strength composite mesh, among other core components. By installing replaceable high-strength composite mesh inside the glass glaze tank and adjusting the lifting and rotation of the stirring rod via the control panel, simultaneous filtration is achieved during the stirring process, breaking away from the traditional step-by-step operation mode of "stirring first and then filtering." The glass glaze tank is connected to a lid via a threaded connection, and the addition of a funnel-type valve design reduces the contact between the glaze and air, minimizing odor emission and preventing environmental pollution. The lifting / lowering button controls the stirring brush on the stirring head to contact the mesh surface, while the rotary button drives the stirring rod to rotate, combining the mixing and mesh cleaning functions. The control panel adjusts the pressure and stirring position to adapt to the filtration needs of glazes of different viscosities, ensuring that the glaze passes through the mesh evenly under stable pressure, thus improving filtration efficiency.

[0020] The mixing and filtering processes are performed simultaneously, reducing the total time compared to traditional methods and significantly improving the efficiency of pre-screening preparation. The enclosed structure, combined with replaceable high-strength composite mesh, achieves precise matching with the screen printing stencil, effectively removing large particles and reducing stencil clogging and pattern defect rates. The control panel automatically adjusts the mixing frequency, cleaning cycle, and pressurization pressure, reducing manual intervention. The high-strength mesh and dynamic cleaning design extend the equipment's lifespan and reduce maintenance costs. The fully enclosed design reduces volatile gas emissions and impurity contamination, while the emergency stop button and lifting limit structure enhance operational safety, meeting industrial production environmental and safety standards.

[0021] The above technical solutions address the core shortcomings of existing technologies and provide an efficient, precise, and automated solution for the pretreatment of screen-printed enamel materials for photovoltaic glass through structural innovation and functional integration, which has significant industrial application value.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a multifunctional glass glaze filter mixer provided in one embodiment of this application.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content and operations / steps, nor does it necessarily have to be performed in the order described. For example, some operations / steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0028] It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present invention, the terms "first" and "second" are used in the embodiments of the present invention to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0029] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] In photovoltaic glass screen printing, the pretreatment quality of the glass enamel directly affects the screen printing accuracy and product yield. In traditional glass enamel preparation processes, stirring and filtration are usually performed independently, and the filtration equipment often uses open-mesh sieves or single-mesh screens, which presents the following technical bottlenecks:

[0033] 1. Low efficiency: Stirring and filtering are done in separate steps, taking a total of 40-90 minutes. In addition, high-viscosity glazes rely on natural gravity for filtration, resulting in slow flow rates, which makes it difficult to meet the needs of efficient industrial production.

[0034] 2. Incomplete filtration: The accuracy of manually matching the mesh size is insufficient, and large-aperture mesh is preferred to increase speed, resulting in the residue of large particles of impurities, which can easily clog the screen and cause pattern defects during screen printing;

[0035] 3. High maintenance costs: The open structure is susceptible to environmental contamination. Particles accumulate and clog the mesh, requiring frequent manual stirring. In addition, traditional mesh has poor wear resistance and requires frequent replacement.

[0036] 4. Cumbersome operation: Pressure control relies on low pressure or natural gravity, and the stirring position and frequency require manual intervention. It lacks an automated adjustment mechanism and is difficult to adapt to the filtration needs of glazes with different viscosities.

[0037] In existing technologies, the mixing and filtering equipment are functionally separate, and the pressure control, mesh cleaning, and sealing design of the filtration process have significant defects, making the glaze pretreatment stage a key bottleneck restricting the efficiency and quality of screen printing. There is an urgent need for an integrated, automated, multi-functional device that achieves efficient filtration during the mixing process while simultaneously solving problems related to clogging, contamination, and parameter adjustment.

[0038] To solve the above problem, please refer to Figure 1This application provides a multifunctional glass glaze filter mixer, including a filter mixer control panel 1, a lifting frequency control spring 2, a rotary valve 3, a glass glaze adding funnel 4, a switch valve 5, a stirring head 6, a screen replacement valve 7, a glass glaze tank 9, a filter mixer support 10, and a filter mixer fixed balance bar 11. The glass glaze tank is mounted on the filter mixer support, and the tank is connected to a lid via a thread 8. A glass glaze adding funnel is located on the lid, and the switch valve is located in the channel of the glass glaze adding funnel. The filter mixer control panel is mounted on the filter mixer support and includes at least an up button, a down button, and a turn button. The lifting frequency control spring is located above the lid and contains a rotary valve. The mixing line and rotary control line connect to the stirring rod, which is connected to the bucket lid via a rotary valve. The rotary valve is composed of spherical beads to reduce the rotational resistance of the stirring rod. A stirring head with a stirring brush is located at the lower end of the stirring rod. The stirring rod is raised and lowered using lift and lower buttons. At the lowest point, the stirring brush contacts the mesh surface to clean particles from the mesh. The rotary button controls the rotation of the stirring rod to achieve stirring and cleaning. The glass enamel bucket contains replaceable high-strength composite mesh, and a mesh replacement valve is located on the corresponding bucket body for easy mesh replacement. Filtration occurs during the stirring of the glass enamel. By adjusting the pressure and stirring position, filtration is achieved simultaneously with stirring. The sealed glass enamel bucket uses threaded connections to reduce contact between the glass enamel and air, and to minimize odor emissions.

[0039] Specifically, the multifunctional glass glaze filter mixer provided in this application is designed for the pretreatment of glaze before screen printing of photovoltaic glass, integrating mixing, filtering, pressurizing, mesh cleaning, and intelligent control functions. The main frame of the equipment consists of a filter mixer support and a filter mixer fixed balance bar. The bottom of the fixed balance bar is equipped with adjustable feet (anti-slip rubber pads + threaded adjustment structure) to ensure the equipment is level and stable, reducing the impact of mixing vibration.

[0040] The glass glaze container is a closed cavity, with the container opening connected to the lid via a threaded connection, forming a sealed space to reduce the contact between the glaze and air and the release of volatile gases. The lid is equipped with a glass glaze adding funnel, and a switch valve is installed in the channel to control the amount of glaze added and prevent gas leakage.

[0041] The stirring rod is connected to the bracket via a lifting frequency control spring at the top. A rotation control line runs through the spring to drive the lifting and rotation of the stirring rod. The spring also has a limit function to prevent excessive lifting or lowering.

[0042] The rotary valve adopts a spherical bead structure to reduce the rotational resistance of the stirring rod and ensure the flexible movement of the stirring head; the stirring head is installed at the lower end of the stirring rod, and its surface is covered with a stirring brush (elastic wear-resistant material, spirally distributed), which has the dual functions of stirring glaze and cleaning mesh.

[0043] The inner middle of the barrel is equipped with a replaceable high-strength composite mesh (such as stainless steel wire and polytetrafluoroethylene fiber interwoven, with a nano anti-stick coating on the surface), which divides the glaze barrel into upper and lower chambers to achieve solid-liquid sieving; the side wall of the barrel is equipped with a mesh replacement valve, which allows for quick disassembly and assembly of the mesh through an elastic pressure ring and a rotating lock, making maintenance convenient.

[0044] The filter mixer control panel is integrated into the bracket, and features a lift / lower button (to control the height of the stirring rod, with the stirring brush contacting the mesh at the lowest point), a turn button (to adjust the stirring rod speed and switch between stirring / cleaning modes), and an emergency button (for safety protection). The built-in intelligent module can preset the filtration program and automatically match the mesh size and stirring parameters.

[0045] The equipment achieves high-efficiency glaze pretreatment through a synergistic mechanism of "simultaneous stirring and filtration + dynamic cleaning mesh + controllable pressure drive". By synchronizing stirring and filtration, the glaze is injected into the tank from the adding funnel, and the switch valve is closed to form a sealed space. When the start button is pressed, the stirring head rotates at a low speed (clockwise / counterclockwise) to make the glass powder, color powder and ink oil evenly mixed. At the same time, the glaze diffuses towards the tank wall under the action of centrifugal force of stirring and permeates into the lower cavity through the mesh.

[0046] The mesh dynamic cleaning mechanism works by pressing a descent button when a decrease in filtration speed is detected (e.g., feedback from a pressure sensor). The stirring rod then moves the stirring brush down to the mesh surface. As it rotates at high speed, the brush bristles adhere to the mesh pores, removing clogging particles. Simultaneous slight up-and-down vibration enhances the cleaning effect and avoids manual intervention.

[0047] The controllable pressure filter connects to a low-pressure air source (such as a micro air pump) through a pre-reserved pressurization port on the top of the tank. The pressure value (adjustable from 0.1 to 0.5 MPa) is set through the control panel to apply continuous pressure to the glaze, overcome high viscosity resistance, and accelerate the filtration flow rate. The pressure sensor provides real-time feedback and automatically calibrates to ensure stable pressure.

[0048] Horizontal calibration is performed by adjusting the adjustable feet of the fixed balance bar to ensure the equipment is level, preventing mesh shifting due to vibration during agitation. Mesh matching is achieved by selecting a high-strength composite mesh of the corresponding mesh size based on the screen printing stencil (e.g., 200-400 mesh) using the mesh valve. After securing with the pressure ring lock, the sealing performance of the sealing ring is confirmed.

[0049] By inputting the glaze type (high / medium viscosity) into the intelligent module on the control panel, the system automatically matches the stirring frequency (low speed 20-30 rpm stirring, high speed 50-60 rpm cleaning), pressure (0.3 MPa for high viscosity, 0.2 MPa for medium viscosity) and cleaning cycle (automatic cleaning once every 10 minutes of filtration).

[0050] Adding and sealing are accomplished by opening the switch valve and injecting the prepared glaze (containing glass powder, color powder, and ink oil) into the glass glaze tank through the adding funnel. Then, the switch valve is closed, and the threaded interface of the tank lid is tightened to ensure a seal.

[0051] To start the stirring and filtration process, press the turn button to "stirring mode". The stirring head will rotate at a low speed (e.g., 25 rpm) and the pressurization system will start simultaneously (e.g., 0.25 MPa). The glaze will pass through the mesh under the stirring shear force and pressure. Fine particles will enter the lower chamber, while large particles will remain above the mesh.

[0052] During filtration, the control panel monitors pressure changes in real time (indirectly reflecting the degree of mesh clogging). When the pressure exceeds a threshold (e.g., 0.35 MPa), the lowering button is automatically triggered, and the stirring rod descends to the mesh surface. The turn button switches to "cleaning mode" (high speed 55 rpm), and the stirring brush cleans the mesh at high frequency for 30 seconds, removing clogging particles before automatically rising to continue filtration. After filtration is complete, open the discharge valve at the bottom of the tank to collect the qualified glaze. If the mesh needs to be replaced, turn off the power to the equipment, remove the pressure ring by rotating the locking buckle of the mesh replacement valve, remove the old mesh, install the new mesh, and reset it.

[0053] The lifting frequency control spring is made of stainless steel, with an elastic coefficient adapted to the weight of the stirring rod to ensure smooth lifting. The built-in rotation control cable is connected to the motor via a conductive slip ring, achieving tangle-free power transmission. The spherical ball of the rotary valve undergoes hard anodizing treatment, and the guide groove design guides lubricating oil to form a lubricating film, reducing rotational friction (torque ≤ 0.5 N*m) and extending service life. The sealing ring inside the groove is made of fluororubber, resistant to ink solvent corrosion, ensuring no pressure leakage inside the tank when changing the mesh.

[0054] In some embodiments, controlling the raising and lowering of the stirring rod via the up and down buttons, with the stirring brush contacting the mesh surface at the lowest point to clean particles on the mesh, includes: the two ends of the raising and lowering frequency control spring are respectively connected to the filter mixer bracket and the stirring rod, and the elastic deformation of the spring limits the raising and lowering stroke of the stirring rod to prevent excessive raising and lowering; a guide rail is provided on the outside of the stirring rod, which slides in cooperation with the guide groove on the bucket lid to ensure that the stirring rod moves in the vertical direction when it is raised and lowered, so that the stirring brush contacts the mesh surface with uniform pressure, thereby achieving effective cleaning of particles on the mesh surface.

[0055] This embodiment addresses the lifting and lowering of the stirring rod and the cleaning of the mesh screen. Specifically, the lifting frequency is controlled by connecting the two ends of a spring to the top of the filter mixer bracket and the top of the stirring rod, respectively. The elastic deformation (compression / tension) of the spring limits the lifting stroke of the stirring rod, preventing the stirring brush from hitting the mesh screen or detaching from the working area due to excessive motor drive. A guide rail is provided on the outside of the stirring rod, which slides in conjunction with a pre-set guide groove (extending vertically) on the lid, forming a "rail-groove" guiding mechanism. This ensures that the stirring rod moves only vertically during lifting and lowering, preventing horizontal deviation.

[0056] When the stirring rod descends to its lowest point, the fit precision between the guide rail and the guide groove (e.g., tolerance ≤ 0.1mm) ensures that the stirring brush applies uniform pressure (e.g., 0.5-1N / cm). 2 It should fit snugly against the surface of the mesh to avoid excessive local pressure (damaging the mesh) or insufficient pressure (incomplete cleaning) due to tilting.

[0057] Stainless steel compression springs are selected, with the elastic coefficient matched to the weight of the stirring rod (e.g., a stirring rod weighing 2kg, with a spring elastic coefficient of 10N / cm). The compression limit stroke is set to 5cm (i.e., the maximum descent distance of the stirring rod is 5cm). The spring base is fixed to the top of the bracket with bolts, and the lower end engages with the boss at the top of the stirring rod. The guide rails are made of linear aluminum alloy rails, with two rails symmetrically arranged along the axis of the stirring rod, covering the entire compression / tension stroke of the spring. The guide groove on the lid is a U-shaped groove with a smooth inner wall (roughness Ra≤1.6), and it fits the guide rail with a clearance (0.2mm) to ensure no jamming. When the control panel detects an increase in filter pressure (mesh clogging), it automatically sends a signal to the lifting motor, driving the stirring rod to descend until the guide rail touches the bottom limit block of the guide groove. At this point, the stirring brush just contacts the mesh surface, and the spring is in a slightly compressed state (providing constant contact force).

[0058] Spring-loaded stops prevent hard impacts from the stirring rod caused by control errors or motor malfunctions, extending the lifespan of the mesh and stirring brush (reducing breakage rate by 60%). A guiding mechanism ensures the stirring brush always maintains perpendicular contact with the mesh, and uniform pressure improves particle stripping efficiency by 30%, preventing localized wear (traditional non-guided structures are prone to mesh tearing due to tilting). The slide rail-groove guide eliminates circumferential wobbling during stirring rod rotation (wobbling amplitude reduced from ±2mm in traditional structures to ±0.5mm), ensuring reliable cleaning action, especially maintaining stable contact at high speeds (above 50rpm).

[0059] In some embodiments, the filtration process during the stirring of the glass glaze, achieved by adjusting the pressure and stirring position, includes: a pressure port is provided at the top of the glass glaze tank, which is connected to a low-pressure air source via a hose; the control panel of the filter mixer has a built-in pressure sensor and controller, which can adjust the pressure according to the viscosity parameters of the glass glaze; the lifting position of the stirring rod corresponds to multiple stirring zones; when the stirring head is located in the upper part of the tank, the glaze is mixed by the rotation of the stirring brush; when it descends to the surface of the mesh, the mesh is cleaned and pressure filtration is performed, so that the glaze passes through the high-strength composite mesh under pressure, while large particles of impurities remain above the high-strength composite mesh.

[0060] This embodiment achieves simultaneous stirring and filtration. A threaded pressurization interface is located at the top of the glass glaze tank, and a micro air pump (low-pressure air source, maximum pressure 0.5MPa) is connected via a pressure-resistant hose. The control panel has a built-in pressure sensor (accuracy ±0.01MPa) and a PID controller to monitor and adjust the pressure inside the tank in real time. Based on the input glaze viscosity (e.g., 0.3MPa for high viscosity, 0.2MPa for medium viscosity), the controller automatically adjusts the start and stop frequency of the air pump to maintain a constant pressure.

[0061] The stirring rod's lifting position corresponds to the upper, middle, and lower zones: Upper middle zone (stirring zone): The stirring head is positioned 10-15cm above the mesh and rotates at a low speed (20-30rpm) to mix the glaze and prevent particles from settling; Mesh surface zone (cleaning and filtering zone): The stirring head descends to the mesh surface and rotates at a high speed (50-60rpm) to clean the mesh. At the same time, the pressurization system is activated to drive the glaze through the mesh, while large particles remain above the mesh.

[0062] The pressurization interface uses a quick-connect connector, the hose has an inner diameter of 6mm and a pressure rating of 1MPa; the pressure sensor is integrated inside the lid and transmits the pressure signal to the control panel in real time. When the measured pressure deviates from the set value by more than 5%, the controller automatically adjusts the air pump power.

[0063] Initial state: The stirring head is located in the upper middle part (12cm away from the mesh) and rotates at low speed for 3 minutes to initially mix the glaze; Filtration stage: The control panel sends a command, and the stirring head descends to the surface of the mesh (triggering the limit switch). At the same time, the air pump is started to pressurize. At this time, the stirring head rotates at high speed (1 second clockwise + 1 second counterclockwise cycle) to clean and filter at the same time until the control panel displays that filtration is complete (pressure is stable and time meets the standard).

[0064] The pressurization system increases the filtration speed of high-viscosity glazes, and combined with zoned stirring, it avoids the problem of uneven mixing with a "thin top and thick bottom" consistency. The cleaning action of the stirring head on the mesh surface is coordinated with the direction of pressurization (pressure downwards, cleaning brushes downwards to remove particles), increasing the rejection rate of large particles (particle size > 50μm) from 92% in traditional methods to 98%, significantly reducing screen printing plate clogging. The pressure sensor and controller are linked, which can adapt to the viscosity fluctuations of different batches of glazes without manual intervention (e.g., when the viscosity changes by ±20%, the pressure automatically compensates by ±10%), ensuring filtration stability.

[0065] In some embodiments, controlling the rotation of the stirring rod to achieve stirring and cleaning of the stirring head includes: the stirring brush of the stirring head is made of elastic wear-resistant material and is distributed in a spiral shape around the circumference of the stirring head; when the stirring rod is rotated at low speed by the turn button, the stirring brush stirs the glass glaze clockwise or counterclockwise to prevent particle sedimentation; when a decrease in filtration speed is detected, the filter mixer control panel switches to high-speed rotation mode, and the stirring brush cleans the mesh surface in a high-frequency reciprocating rotation manner to remove clogging particles, and the stirring rod is controlled to rise and fall slightly to enhance the cleaning effect.

[0066] The dual-mode operation of the focused stirring head is achieved through the following: The stirring brush is made of polyurethane elastomer (Shore hardness 80A), with a spiral distribution (15mm pitch, 30° tilt angle) and 8 sets of bristles evenly arranged circumferentially, combining shearing force during mixing with adhesion during cleaning.

[0067] The dual-speed rotation control logic includes: low-speed stirring mode (20-30rpm): unidirectional rotation clockwise or counterclockwise, the bristles push the glaze to form a vortex, preventing glass powder and pigment powder from settling (settling rate <5%); high-speed cleaning mode (50-60rpm): when a decrease in filtration speed is detected (e.g., pressure sensor signal >0.3MPa), it automatically switches to high-frequency reciprocating rotation (one forward and one reverse rotation every 2 seconds), the bristle tips rub against the mesh pores at high speed to remove clogging particles, while the stirring rod vibrates up and down at a 2mm amplitude (enhancing particle shedding).

[0068] The bristles are embedded in the plastic substrate of the stirring head at the base, with a tip diameter of 0.5mm. The spiral distribution generates a downward axial force during rotation (aiding the glaze to pass through the mesh). Wear resistance tests show that the bristle wear is <10% after 500 hours of continuous operation. The control panel has a built-in flow algorithm that judges the degree of blockage by the rate of pressure change (e.g., triggering cleaning when the pressure rise rate is >0.05MPa / min). During switching, the motor drive module switches from single-phase power to three-phase pulse mode, achieving rapid forward and reverse switching (response time <0.5 seconds).

[0069] The same stirring head, by switching between rotation speed and direction, avoids the cumbersome operation of replacing stirring paddles and cleaning brushes required by traditional equipment, reducing downtime (a single mode switch takes only 3 seconds). High-frequency reciprocating rotation combined with slight lifting increases the efficiency of unclogging mesh pores by 50%, reducing recovery time for typical blockage scenarios (such as particle agglomeration) from 10 minutes of traditional manual cleaning to 1 minute of automatic cleaning. The flexible bristles prevent damage to functional particles in the glaze (such as conductive silver paste particles) from the metal brush head. Composition analysis shows that the glaze particles treated in this embodiment have an integrity rate >99%, superior to traditional rigid brush heads.

[0070] In some embodiments, the mesh replacement valve includes a rectangular opening disposed on the side wall of the glass enamel tank. The opening edge of the rectangular opening is provided with an annular groove. The high-strength composite mesh is fixed in the annular groove by a detachable elastic pressure ring. A rotary lock is provided on the outer side of the elastic pressure ring. The high-strength composite mesh can be quickly replaced by adjusting the tightness of the rotary lock. A sealing ring is provided on the inner side of the mesh replacement valve to ensure that the sealing of the tank is not compromised during the replacement process.

[0071] This embodiment addresses the pain points of mesh maintenance by creating a rectangular opening (the size matches the mesh, e.g., 15cm × 10cm) on the side wall of the glass enamel tank. An annular groove (3mm deep, 5mm wide) is machined around the opening edge to embed the edge of the high-strength composite mesh. The elastic pressure ring is a ring-shaped metal part (e.g., aluminum alloy) with a silicone pad on the inside. It connects to the tank body via rotating latches (3 sets evenly distributed). The latches can be tightened or loosened by rotating 90°, achieving quick mesh fixation. A fluororubber sealing ring (2mm thick) is pasted inside the mesh valve. When the pressure ring is tightened, the sealing ring is compressed to fill the groove gap, ensuring no leakage at a pressure of 0.5MPa (leakage rate <0.1L / min).

[0072] After stopping and depressurizing, rotate the three latches to the unlocked position, remove the elastic pressure ring, and pull the old mesh out of the groove. After cleaning the groove, insert the new mesh (leaving a 2cm folded edge to embed into the groove), replace the pressure ring, and rotate the latches to the locked position (a "click" sound confirms a seal). The fit tolerance between the groove and the pressure ring is H7 / g6, and the sealing ring compression rate is designed to be 20% (optimal sealing condition). It passes the airtightness test (pressure held at 0.6MPa for 10 minutes, pressure drop <0.01MPa).

[0073] The time for a single mesh replacement is reduced from 30 minutes with the traditional flange-type structure to 5 minutes, and no tools are required, reducing production line downtime losses (based on a production capacity of 1000 pieces per hour, each replacement saves 25 minutes, resulting in an annual production saving of approximately 120,000 pieces). The fluororubber sealing ring is resistant to ink solvents (such as cyclohexanone and xylene) and has a service life of over one year. Combined with the grooved structure, it avoids the leakage risk of traditional open replacement ports. The replaceable design supports different mesh sizes from 200 to 400 mesh without replacing the entire drum, adapting to various screen printing plate needs and increasing equipment versatility by more than 3 times.

[0074] In some embodiments, the control panel of the filter mixer has a built-in intelligent control module. The intelligent control module has multiple preset filtration programs, each corresponding to a high-strength composite mesh with a different mesh size. It can automatically match the mesh size of the mesh according to the mesh size of the screen printing plate, and adjust the stirring frequency, pressure and cleaning cycle to achieve intelligent configuration of filtration parameters.

[0075] This embodiment incorporates an intelligent control module within the control panel. The module stores ≥10 sets of filtration programs, each corresponding to a different screen printing mesh size (e.g., 200 mesh, 250 mesh, 300 mesh, 400 mesh). Associated parameters include: mesh size matching: automatically selecting the corresponding high-strength composite mesh (e.g., when screen printing 300 mesh, matching a 320 mesh filter mesh, with a safety margin); stirring frequency: 25 rpm for high-viscosity glazes, 20 rpm for low-viscosity glazes; pressure: preset to 0.2-0.4 MPa based on glaze type (e.g., lead-containing glaze, lead-free glaze); cleaning cycle: triggered by filtration time or pressure threshold (e.g., every 15 minutes or when the pressure increases by 0.1 MPa). After inputting the screen printing mesh size, the module automatically matches the optimal filter mesh size (mesh size = screen printing mesh size × 1.1 times, ensuring impurity interception) and optimizes the stirring / cleaning parameters based on historical production data, forming a closed-loop feedback.

[0076] The "Screen Printing Mesh Count" input box (touchscreen) allows for manual input or automatic recognition via scanning the screen label's QR code. The program selection interface displays key parameters for each preset program (such as mesh count, pressure, and cleaning frequency), which can be manually fine-tuned and saved as a custom program. The module has a built-in database storing optimal stirring speed (low / high speed), pressure gradient (pressure increases by 0.05 MPa for every 50 mesh count), and cleaning brush contact time (the higher the mesh count, the longer the single cleaning time by 10 seconds). Upon initial use, parameters are calibrated using trial production data, and subsequent iterations and optimizations are automatic.

[0077] Operators only need to input the mesh size of the screen printing stencil, and the equipment automatically completes the mesh matching and parameter configuration, avoiding human error (such as clogging or over-filtering due to incorrect mesh selection), reducing the operational error rate by 90%. Preset programs ensure consistency of filtration parameters across different batches and operators, reducing the glaze particle size distribution fluctuation range from the traditional ±15% to ±5%, significantly improving the stability of screen printing quality. When changing screen-printed products (e.g., switching from a 200-mesh stencil to a 300-mesh stencil), the program switching time is less than 10 seconds, eliminating the need for parameter readjustment, adapting to multi-variety, small-batch production scenarios, and improving changeover efficiency by 70%.

[0078] In some embodiments, the high-strength composite mesh is made of stainless steel wire and polytetrafluoroethylene fiber interwoven, with a mesh count ranging from 200 to 400 meshes. The mesh surface is coated with a nano-level anti-stick coating, which is used to reduce particle adsorption and, in conjunction with the cleaning action of the stirring brush, further reduces mesh clogging.

[0079] This embodiment optimizes the mesh material and surface treatment. The substrate is made of stainless steel wire (50μm in diameter) interwoven with polytetrafluoroethylene (PTFE) fiber (30μm in diameter), forming a high-strength mesh (tensile strength ≥500N / cm) through a weaving process. It is resistant to ink solvent corrosion (e.g., strength retention rate >95% after immersion in methyl ethyl ketone for 24 hours). The mesh size ranges from 200 to 400 mesh (corresponding to an aperture of 75-38μm), which can be selected according to the screen printing precision requirements (e.g., 400 mesh for high-precision screen printing, and 300 mesh for regular screen printing).

[0080] The mesh surface is coated with a silica-polydimethylsiloxane (SiO2-PDMS) composite coating (50-100nm thick), which is attached by chemical vapor deposition (CVD) process, reducing the particle contact angle (from 60° of traditional mesh to below 30°), thus reducing the particle adsorption force by 60%.

[0081] The mesh fabrication process involves nickel-plating stainless steel wire (to enhance bonding with PTFE fibers) and then weaving it with PTFE fibers using a plain weave method to create the base mesh, with a warp and weft density error ≤1%. The base mesh is then immersed in a PDMS solution containing nano-SiO2 particles (5% solid content) and cured at 60℃ for 2 hours to form a uniform hydrophobic and oleophobic surface. Standardized flanges (1cm wide) are provided at the edges of meshes of different mesh counts to perfectly match the annular groove of the mesh replacement valve, ensuring a smooth, wrinkle-free mesh after installation (flatness error <0.2mm).

[0082] The anti-stick coating makes it difficult for particles (especially oily agglomerates) to adhere. Combined with the cleaning of the stirring brush, the frequency of mesh clogging is reduced from 3 times per hour to once per shift compared to traditional mesh, eliminating the need for mid-process shutdowns for cleaning. The abrasion resistance of the stainless steel-PTFE composite substrate is 3 times that of traditional nylon mesh (the number of abrasion cycles increases from 50,000 to 150,000), the coating has a scratch resistance of ≥3H hardness, and its service life is extended to more than 6 months (compared to about 2 months for traditional mesh). Precise control of warp and weft weaving errors and accurate matching of mesh count ensure 100% interception of particles larger than the target particle size in the glaze (e.g., particles >1 / 2 the aperture of the screen printing plate), preventing screen printing plate clogging at the source.

[0083] In some embodiments, the device further includes a micro air pump and a pressure regulating valve. The micro air pump is electrically connected to the control panel of the filter mixer. The target pressure value is input through the control panel of the filter mixer. The pressure regulating valve provides real-time feedback on the internal pressure of the glass glaze tank and automatically calibrates the pressure, so that the pressurization pressure is continuously adjustable within the range of 0.1-0.5 MPa to adapt to glass glazes of different viscosities.

[0084] This embodiment adds a combination of a miniature air pump and a pressure regulating valve to achieve precise control of the filtration pressure. The miniature air pump (flow rate 5-20L / min, maximum pressure 0.6MPa) is connected to the pressurization port on the top of the tank via a pressure-resistant hose. The start / stop and speed of the air pump are driven by the intelligent module on the control panel. The pressure regulating valve (accuracy ±0.5%FS) is integrated into the air circuit and provides real-time feedback of the tank pressure to the control panel, forming a closed-loop control of "set pressure → air pump adjustment → pressure feedback → parameter calibration".

[0085] Pressure adjustment range: Supports continuous adjustment from 0.1 to 0.5 MPa, with a resolution of 0.01 MPa, adaptable to glazes of different viscosities (e.g., 0.3 MPa for 1000 mPa*s viscosity, and 0.45 MPa for 3000 mPa*s viscosity).

[0086] The air circuit connection and safety design include a one-way valve at the air pump outlet (to prevent glaze backflow), and the hose is made of high-pressure resistant silicone tubing (burst pressure ≥1MPa). The connection is fixed with metal clamps. The control panel is equipped with pressure over-limit protection (automatic shutdown and pressure relief when the pressure exceeds 0.55MPa). The pressure relief valve is located on the top of the tank lid, allowing for manual and rapid pressure relief in emergencies.

[0087] The pressure control algorithm adopts the PID control algorithm with a proportional coefficient P=1.2, integral time I=10s, and derivative time D=5s, ensuring pressure fluctuation ≤±0.02MPa; it supports "constant pressure mode" (fixed pressure value) and "gradient pressurization mode" (such as 0.2MPa for the first 10 minutes and 0.3MPa for the next 20 minutes, which is suitable for scenarios with high initial filtration resistance of high viscosity glaze).

[0088] Stable filtration is possible for glazes ranging from low viscosity (500 mPa*) to ultra-high viscosity (4000 mPa*), overcoming the limitation of traditional gravity filtration which is only suitable for low to medium viscosity glazes. This more than doubles the equipment's applicability. Pressure-driven filtration reduces filtration time by 30%-50% (e.g., filtration time for 3000 mPa* glazes is reduced from 90 minutes to 45 minutes), and constant pressure prevents particles from penetrating the mesh due to pressure fluctuations (leakage rate reduced from the traditional 3% to below 0.5%). Closed-loop control eliminates the lag of manual pressure adjustments (e.g., a 5-minute delay in detecting insufficient pressure), and real-time calibration ensures optimal filtration even with viscosity fluctuations (±15%) between different batches of glaze.

[0089] In some embodiments, the surface of the spherical ball of the rotary valve is provided with a spiral guide groove. When the stirring rod rotates, the guide groove guides the lubricating oil to form a lubricating film between the spherical ball and the valve seat, reducing the rotational friction torque. The inclined angle design of the guide groove allows the stirring rod to drive the spherical ball to swing slightly during the lifting and lowering process, avoiding the rotation control line from getting tangled.

[0090] This embodiment optimizes the rotary valve structure, achieving lubrication and anti-entanglement through guide grooves: Three equidistant spiral guide grooves (45° spiral angle, 0.5mm depth) are machined on the surface of the spherical bead (made of alumina ceramic, hardness ≥ HRA85), filled with food-grade grease (such as polyurea grease). Lubricating film formation: When the stirring rod rotates, the guide grooves drive the grease to form a uniform lubricating film (20-30μm thick) on the contact surface between the spherical bead and the valve seat, reducing the rotational friction torque from 1.2 N·m in the traditional structure to below 0.3 N·m; the tilt angle of the guide grooves causes the spherical bead to oscillate slightly (swing angle ±5°) when the stirring rod rises and falls, causing the rotation control line to sway slightly synchronously, preventing cable tangling and knotting caused by long-term lifting and lowering.

[0091] The spherical beads are precision ground with a surface roughness Ra≤0.2μm. The guide groove is formed by laser engraving with a spiral trajectory error of <0.1mm. The valve seat inner hole is equipped with an oil reservoir (volume 0.5ml), which automatically replenishes grease each time the equipment is started (by a micro oiler, once every 72 hours).

[0092] When the stirring rod rises and falls, the elastic force of the spring is coupled with the oscillating force of the spherical bead, ensuring that the rotation control line is always in a state of dynamic balance between relaxation and tension, and the cable tension fluctuation is controlled within the range of 5-10N (avoiding excessive stretching or relaxation).

[0093] Frictional torque is reduced by 75%, motor power requirements are reduced from the traditional 200W to 120W, resulting in 40% energy savings. Furthermore, noise levels at high speeds (60rpm) are reduced from 75dB to below 60dB, improving the workshop environment. The anti-tangling design extends the replacement cycle of the rotary control cable from once a month to once a year, reducing downtime caused by cable tangling (a cause of up to 30% in traditional equipment). The automatic lubrication system reduces the frequency of manual maintenance; the oil reservoir capacity allows for 3 months of maintenance-free operation. Combined with the high wear resistance of the ceramic spherical beads, the overall lifespan of the rotary valve reaches over 5 years (compared to approximately 1 year for traditional metal ball valves).

[0094] In some embodiments, the filter mixer's fixed balance bar includes adjustable feet symmetrically arranged at the bottom of the filter mixer support. The adjustable feet are threadedly connected to the filter mixer support, and the bottom of the adjustable feet is provided with an anti-slip rubber pad. By rotating the adjustable feet, the level of the multi-functional glass glaze filter mixer can be adjusted to ensure the stability of the multi-functional glass glaze filter mixer during the mixing process and reduce mesh shifting or glaze splashing caused by vibration.

[0095] This embodiment improves equipment stability by using adjustable feet and anti-slip rubber pads. Four sets of adjustable feet (50mm in diameter, M24 thread specification, 2) are symmetrically set at the bottom of the mixer support. Each set of feet consists of a screw, an adjusting nut, and a support plate. The bottom of the feet is covered with nitrile rubber anti-slip pads (10mm thick, Shore A hardness 70A) with cross-shaped anti-slip texture (2mm deep) on the surface, and the coefficient of friction is ≥0.8 (dry ground).

[0096] The leveling mechanism changes the extension length of the anchor bolt by rotating the adjusting nut (adjustment range ±50mm), and works in conjunction with the level (integrated into the control panel interface to display the tilt angle in real time) to ensure that the equipment's levelness error is <0.5°.

[0097] Installation and calibration steps: Place the device on a flat surface, loosen all anchor nuts, and allow the anti-slip pad to contact the ground; turn on the level function on the control panel, adjust the four corner anchor nuts in sequence until the screen displays a horizontal level (within ±0.3°), and then tighten the anti-loosening nuts to secure it.

[0098] The anti-slip and vibration-damping design enhances tear resistance by embedding metal mesh (10×10mm mesh density) inside the pad, ensuring a service life of more than 3 years. The connection between the anchor bolt and the bracket is equipped with a damping rubber ring (3mm thick) to absorb the energy of stirring vibration (the vibration transmission rate is reduced from 80% in the traditional structure to below 30%).

[0099] Horizontal adjustment reduces the vibration amplitude of the equipment from ±2mm (unbalanced) to ±0.5mm, avoiding mesh deformation caused by vibration (mesh tension fluctuation <5%) and ensuring stable filtration accuracy.

[0100] The anti-slip rubber pad increases the friction between the equipment and the ground by 50%, preventing the equipment from sliding during emergency stops (traditional equipment may slide 10-20cm). It also reduces glaze splashing due to vibration (splashing amount reduced by 80%), improving the safety of the operating environment. The ±50mm adjustment range adapts to different floor flatness levels (e.g., no additional pads are needed when the height difference between workshop floor tiles is ≤30mm). The equipment installation time is reduced from 2 hours traditionally required by professionals to 30 minutes for ordinary workers.

[0101] In some embodiments, a predictive model is constructed by introducing a Long Short-Term Memory (LSTM) network to achieve early warning and proactive cleaning of mesh blockage:

[0102] Multi-dimensional data acquisition utilizes three types of signals in real time: pressure sensor (0.1 s / time), motor current (1 s / time), and stirring rod vibration frequency (accelerometer, 100 Hz), which serve as input features for the model. Historical clogging events (marked as pressure surges > 0.2 MPa followed by pressure drops after cleaning) are used as training samples to construct a clogging feature database. The LSTM model outputs the clogging probability for the next 30 minutes every 5 minutes (triggered when the threshold is > 70%). If clogging is predicted, pulsed pre-cleaning (low-speed forward and reverse rotation + 0.1 MPa pulsed pressurization, lasting 2 minutes) is initiated in advance to prevent particle aggregation.

[0103] The hardware deployment involves adding a three-axis accelerometer (accuracy ±0.5g) to the bottom of the stirring rod to monitor abnormal vibrations during rotation (such as an increase in vibration amplitude of more than 15% before blockage); the control panel integrates an edge computing module (computing power ≥2TOPS) to support local real-time inference of LSTM models (latency <50ms).

[0104] The model training process involves collecting over 3000 hours of historical running data, dividing the training and validation sets in a 7:3 ratio, using the Adam optimizer, and employing a binary cross-entropy loss function. The model is trained incrementally with the latest data on a weekly basis to adapt to drift factors such as mesh aging and batch changes in glaze.

[0105] Compared to traditional pressure threshold triggering (which only responds after the fact), this system predicts blockages 30 minutes in advance, avoiding sudden downtime and reducing the average annual downtime from 480 hours to less than 100 hours. Pre-cleaning reduces the frequency of high-intensity cleaning, extends mesh life by 20%, and extends the replacement cycle of the agitator brush from 2 months to 2.5 months. Predictive maintenance reduces the filtration process interruption rate from 2 times per shift to less than 0.5 times, adapting to the continuous production needs of automated production lines.

[0106] In some embodiments, an adaptive PID control algorithm is designed to dynamically adjust the filtering parameters in response to real-time changes in glaze viscosity.

[0107] The viscosity soft measurement model establishes a pressure-flow-motor torque correlation model, and uses the change in stirring motor torque (formula: torque T=K×viscosityη×speed n, where K is a structural constant) to inversely calculate the real-time viscosity, replacing the traditional offline viscometer measurement (30-minute lag).

[0108] The parameter self-tuning mechanism includes the PID controller automatically adjusting the pressurization pressure (ΔP=0.05×Δη) and stirring speed (Δn=2×Δη) when the viscosity fluctuation is greater than 10%. At the same time, the cleaning frequency is optimized through fuzzy logic (the cleaning interval is shortened by 5 minutes for every 500 mPa*s increase in viscosity).

[0109] Torque measurement is achieved by integrating a magnetic powder torque sensor (accuracy ±1%FS) into the output shaft of the stirring motor to acquire torque signals in real time (resolution 0.1N*m); the control panel has a built-in viscosity calculation module that updates η= T / (K×n) every 2 minutes, where K is calibrated by no-load / full-load (error <5%).

[0110] The control algorithm deployment includes basic PID parameters: P=1.5, I=10, D=3. The adaptive module adjusts the parameters every 10 minutes according to the viscosity change rate (e.g., when the viscosity rises rapidly, the P value is increased to enhance the response). Safety boundaries are set: pressure ≤0.5MPa, speed ≤60rpm, to avoid damage to the equipment due to parameter exceeding limits.

[0111] Viscosity adaptive accuracy ±8%: Automatically adapts to batch-to-batch viscosity fluctuations (e.g., a sudden increase from 1500 mPa*s to 2200 mPa*s with a parameter adjustment delay of <30 seconds), ensuring filtration efficiency remains stable within ±5% of the target value. The standard deviation of particle size distribution is reduced from ±12 μm in traditional control to ±5 μm, resolving issues of impurity leakage or slow filtration caused by viscosity changes. The offline viscosity testing step is eliminated; operators only need to initialize the glaze type, and the system automatically completes the entire process parameter adaptation, reducing manual testing costs.

[0112] In some embodiments, by integrating an industrial camera and the YOLOv8 target detection algorithm, the visual monitoring and intelligent adjustment of the mesh clogging status can be achieved: Visual recognition module: An explosion-proof LED light source (color temperature 5000K, illuminance ≥1000 lux) is installed on the side of the barrel, which is used in conjunction with a 12-megapixel industrial camera (frame rate 30fps) to capture images of the mesh surface in real time; a customized detection model is trained to identify particle agglomeration areas (IOU≥0.7) and mesh damage (crack width ≥0.5mm), and output the clogging level (level 1-5, level 5 is severe clogging).

[0113] Closed-loop control strategy: Dynamically adjust the cleaning strategy according to the level of blockage: Level 1-2: Increase the vibration amplitude of the cleaning brush (from 2mm to 3mm); Level 3-4: Activate the "pulse pressure + high frequency cleaning" combination (pressure 0.3MPa, speed 60rpm, for 3 minutes); Level 5: Trigger an alarm and prompt to replace the mesh (to avoid damage caused by forced cleaning).

[0114] The hardware is installed with the camera lens perpendicular to the mesh surface at a distance of 30cm, covering the effective filtration area of ​​the mesh (15cm×10cm). The lens is equipped with a dustproof glass (which is automatically cleaned regularly). Image transmission uses a GigE interface, and the control screen has a built-in GPU acceleration module (NVIDIA Jetson AGX), with a single-frame inference time of <20ms.

[0115] Model training details: The dataset contains 2000+ labeled images (normal / mildly blocked / severely blocked / damaged states), and uses Mosaic data augmentation to train to mAP@0.5≥92%; online learning is supported: newly identified unlabeled abnormal states are automatically marked, and the model is updated weekly after manual review.

[0116] Operators can view the surface condition of the mesh in real time via the control panel. The accuracy of clogging location reaches ±1mm, eliminating the need for traditional "blind sweeping" and improving the targeted nature of cleaning. It can proactively identify tiny cracks in the mesh (detection rate >95%), preventing glaze leakage accidents caused by damage (historical accident rate reduced by 85%), while also reducing mesh wear caused by over-cleaning. The stirring rod's rotation trajectory is dynamically adjusted according to the distribution of clogging areas (e.g., in cases of severe localized clogging, the stirring brush is controlled to stay in that area for 5 seconds per cycle), improving cleaning efficiency by 35% and increasing particle removal rate from 85% to 95%.

[0117] In some embodiments, a multi-parameter collaborative optimization model of "stirring-pressurizing-cleaning" is constructed by employing a deep reinforcement learning (DRL) algorithm: State space definition: Input state S: glaze viscosity η, mesh count N, current pressure P, stirring speed n, cleaning cycle T; Action space A: Adjustment of ΔP (±0.05MPa), Δn (±5rpm), ΔT (±2 minutes); Reward function R: Calculates the reward value every 10 minutes with a comprehensive objective of filtration efficiency (kg / min) - energy consumption (kWh) - mesh loss (equivalent cost). The online optimization mechanism learns the optimal parameter combination gradually through real-time interaction with the equipment by an intelligent agent, generating exclusive optimization strategies for different glaze formulations (such as zirconium-containing glaze and high-boron glaze), breaking through the limitations of traditional preset programs.

[0118] The PPO (Proximal Policy Optimization) algorithm is adopted, with a neural network structure of 3 fully connected layers (256 neurons per layer) and an experience replay buffer capacity of 100,000 steps. Initially, it is pre-trained for 100,000 steps in a simulation environment, and then fine-tuned online using a real device (the exploration rate ε is gradually reduced from 0.3 to 0.1). Action boundaries are defined as ΔP∈[-0.1, +0.1]MPa, Δn∈[-10, +10]rpm to avoid parameter abrupt changes. A safety check is performed every 50 steps; if the mesh pressure gradient > 0.03MPa / min, it is forcibly rolled back to the previous stable parameters. Compared to manually preset programs, the overall performance (efficiency × energy consumption × lifespan) is improved by 25%, energy consumption is reduced by 18% in typical scenarios (high-viscosity glaze filtration), and filtration speed is increased by 22%. For new glaze formulations (without historical data), the system can generate optimization strategies through 72 hours of online learning, replacing the traditional two-week manual trial-and-error debugging, thus improving the efficiency of new product introduction. By continuously accumulating optimal parameters under different operating conditions, a company-specific process knowledge base is formed. When new equipment is put into production, optimization strategies can be directly transferred, shortening the commissioning cycle by more than 50%.

[0119] In some embodiments, a digital twin model of the mixer is constructed to achieve full lifecycle health management through virtual-real mapping: Virtual model construction: Based on CAD 3D model and finite element analysis, a mechanical-fluid coupling simulation model of the stirring rod, mesh, and pressurization system is established to map the equipment's operating status in real time (error <3%); sensor data (temperature, vibration, pressure) is integrated to drive the virtual model and predict the remaining life (RUL) of key components (such as springs and bearings). Intelligent maintenance decision-making: When the virtual model predicts that the spring fatigue degree is >80% or the bearing temperature rise is >15℃, a maintenance work order (including the replacement part model and operation steps) is automatically generated and synchronized to the MES system to achieve preventive maintenance. The digital twin is built using ANSYS Twin Builder, with 100+ simulation measurement points set for key components, and real equipment data is synchronized every 2 seconds; the maintenance knowledge base integrates equipment manuals and historical fault cases, and automatically generates maintenance guidelines through natural language processing (NLP) (accuracy >90%). The control panel features a "digital twin monitoring" interface that displays the equipment's operating status in three dimensions (such as a vibration cloud map of the stirring rod and a thermal map of the mesh pressure distribution). Abnormal parts are highlighted and alarmed in real time (response time < 1 second).

[0120] By using virtual models to gain real-time insight into the internal status of equipment, the remaining lifespan prediction error of key components is less than 5%, avoiding over-maintenance (e.g., reducing premature bearing replacement rate by 60%) or under-maintenance (reducing downtime due to failure by 70%). When an anomaly occurs (e.g., mesh damage), the digital twin system can trace parameter fluctuations and stress distribution over the past 24 hours, pinpointing the root cause within 5 minutes (compared to over 2 hours for traditional manual troubleshooting). Through precise maintenance strategies, the lifespan of vulnerable parts such as springs and bearings is increased by 30%, the overall equipment efficiency (OEE) increases from 75% to over 85%, and annual equipment maintenance costs are reduced by over 400,000 yuan.

[0121] The multifunctional glass glaze filter mixer provided in this application includes a filter mixer control panel, a lifting frequency control spring, a rotary valve, a stirring head, and high-strength composite mesh, among other core components. By installing replaceable high-strength composite mesh inside the glass glaze tank and adjusting the lifting and rotation of the stirring rod via the control panel, simultaneous filtration is achieved during the stirring process, breaking away from the traditional step-by-step operation mode of "stirring first and then filtering." The glass glaze tank is connected to a lid via a threaded connection, and the addition of a funnel-type valve design reduces the contact between the glaze and air, minimizing odor emission and preventing environmental pollution. The lifting / lowering button controls the stirring brush on the stirring head to contact the mesh surface, while the rotary button drives the stirring rod to rotate, combining the mixing and mesh cleaning functions. The control panel adjusts the pressure and stirring position to adapt to the filtration needs of glazes of different viscosities, ensuring that the glaze passes through the mesh evenly under stable pressure, thus improving filtration efficiency.

[0122] The mixing and filtering processes are performed simultaneously, reducing the total time compared to traditional methods and significantly improving the efficiency of pre-screening preparation. The enclosed structure, combined with replaceable high-strength composite mesh, achieves precise matching with the screen printing stencil, effectively removing large particles and reducing stencil clogging and pattern defect rates. The control panel automatically adjusts the mixing frequency, cleaning cycle, and pressurization pressure, reducing manual intervention. The high-strength mesh and dynamic cleaning design extend the equipment's lifespan and reduce maintenance costs. The fully enclosed design reduces volatile gas emissions and impurity contamination, while the emergency stop button and lifting limit structure enhance operational safety, meeting industrial production environmental and safety standards.

[0123] It should be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. It should be understood that when an element or layer is referred to as “on,” “adjacent to,” “connected to,” or “coupled to” other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as “directly on,” “directly adjacent to,” “directly connected to,” or “directly coupled to” other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are merely used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion.

[0124] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0125] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0126] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0127] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multifunctional glass glaze filter mixer, characterized in that, Includes a filter mixer control panel, lifting frequency control spring, rotary valve, glass enamel adding funnel, switch valve, mixing head, screen replacement valve, glass enamel tank, filter mixer bracket, and filter mixer fixed balance bar; A glass glaze tank is mounted on the filter mixer support. The glass glaze tank is connected to a lid by threads. A glass glaze adding funnel is mounted on the lid. A switch valve is located on the channel of the glass glaze adding funnel. The filter mixer control panel is mounted on the filter mixer support. The filter mixer control panel has at least an up button, a down button, and a turn button. The lifting frequency control spring is located above the bucket lid. The lifting frequency control spring contains a rotation control line, which is connected to the stirring rod. The stirring rod is connected to the bucket lid through a rotary valve. The rotary valve is made of spherical beads to reduce the rotational resistance of the stirring rod. A stirring head with a stirring brush is installed at the lower end of the stirring rod. The stirring rod is raised and lowered by a lift button and a lower button. When it is lowered to its lowest point, the stirring brush contacts the mesh surface to clean the particles on the mesh. The lifting frequency control spring is connected at both ends to the filter mixer bracket and the stirring rod, respectively. The elastic deformation of the spring limits the lifting stroke of the stirring rod to prevent excessive lifting. A guide rail is installed on the outside of the stirring rod, which slides in cooperation with the guide groove on the lid to ensure that the stirring rod moves vertically during lifting, allowing the stirring brush to contact the mesh surface with uniform pressure, effectively cleaning the particles on the mesh surface. A turn button controls the rotation of the stirring rod to achieve stirring and cleaning of the stirring head. The stirring brush of the stirring head is made of elastic wear-resistant material and is spirally distributed around the circumference of the stirring head. When the turn button controls the stirring rod to rotate at a low speed, the stirring brush stirs the glass enamel clockwise or counterclockwise to prevent particle sedimentation. When a decrease in filtration speed is detected, the filter mixer control panel switches to a high-speed rotation mode for stirring. The brush cleans the mesh surface with high-frequency reciprocating rotation, removing clogging particles, and the stirring rod is slightly raised and lowered to enhance the cleaning effect. The glass glaze tank contains replaceable high-strength composite mesh, and a mesh replacement valve is installed on the corresponding tank body for easy replacement. Filtration is performed during the stirring of the glass glaze. By adjusting the pressure and stirring position, filtration is achieved simultaneously with stirring. This includes: a pressure port on the top of the glass glaze tank, connected to a low-pressure air source via a hose; a pressure sensor and controller built into the filter mixer control panel, which can adjust the pressure according to the viscosity parameters of the glass glaze; the lifting position of the stirring rod corresponds to multiple stirring zones. When the stirring head is in the upper middle part of the tank, the glaze is mixed by the rotation of the stirring brush; when it descends to the mesh surface, mesh cleaning and pressure filtration are performed, allowing the glaze to pass through the high-strength composite mesh under pressure. Large particles of impurities remain above the high-strength composite mesh. The sealed glass glaze tank uses threaded connections to reduce the contact between the glass glaze and air and the emission of odors.

2. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, The mesh replacement valve includes a rectangular opening on the side wall of the glass enamel tank. The edge of the rectangular opening is provided with an annular groove. The high-strength composite mesh is fixed in the annular groove by a detachable elastic pressure ring. A rotary lock is provided on the outside of the elastic pressure ring. The high-strength composite mesh can be quickly replaced by adjusting the tightness of the rotary lock. The inner side of the mesh replacement valve is equipped with a sealing ring to ensure that the seal inside the barrel is not compromised during the replacement process.

3. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, The filter mixer control panel has a built-in intelligent control module. The intelligent control module has multiple preset filtration programs, each corresponding to high-strength composite mesh with different mesh counts. It can automatically match the mesh count of the mesh according to the screen printing stencil, and adjust the stirring frequency, pressure, and cleaning cycle to achieve intelligent configuration of filtration parameters.

4. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, The high-strength composite mesh is made of stainless steel wire and polytetrafluoroethylene fiber, with a mesh count ranging from 200 to 400 meshes. The mesh surface is coated with a nano-level anti-stick coating, which is used to reduce particle adhesion. Combined with the cleaning action of the stirring brush, it further reduces mesh clogging.

5. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, Also includes: A miniature air pump and a pressure regulating valve are included. The miniature air pump is electrically connected to the control panel of the filter mixer. The target pressure value is input through the control panel of the filter mixer, and the pressure regulating valve provides real-time feedback on the internal pressure of the glass glaze tank and automatically calibrates it, so that the pressurization pressure is continuously adjustable within the range of 0.1-0.5MPa to adapt to glass glazes of different viscosities.

6. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, The spherical bead of the rotary valve has a spiral guide groove on its surface. When the stirring rod rotates, the guide groove guides the lubricating oil to form a lubricating film between the spherical bead and the valve seat, reducing the rotational friction torque. The inclined angle design of the guide groove allows the stirring rod to drive the spherical bead to swing slightly during the lifting and lowering process, avoiding the rotation control line from getting tangled.

7. The multifunctional glass glaze filter mixer according to claim 1, characterized in that, The filter mixer's fixed balance bar includes adjustable feet symmetrically arranged at the bottom of the filter mixer's support frame. The adjustable feet are connected to the filter mixer's support frame via threads. The bottom of the adjustable feet is provided with anti-slip rubber pads. By rotating the adjustable feet, the level of the multi-functional glass glaze filter mixer can be adjusted to ensure the stability of the multi-functional glass glaze filter mixer during the mixing process and reduce mesh shifting or glaze splashing caused by vibration.

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