Graded deposition device and method for improving compactness of silver layer and used for production of glass silver-plated film

Abstract

The invention relates to the technical field of glass processing, in particular to a graded deposition device and method for glass silver plating film production for improving silver layer compactness. Comprising a base frame; the conveying module is horizontally arranged on the base frame and used for conveying the glass; the adjusting module is arranged on one side of the transmission module in a vertical state; the silver plating module is horizontally arranged between the two groups of adjusting modules in a crossing manner; the silver plating module is provided with a spray head capable of plating silver on the glass and an adjusting unit capable of controlling the spraying angle of the spray head; the homogenizing module is arranged on the outer side of the silver plating module, homogenizing parts facing the glass are arranged on the homogenizing module, and the number of the homogenizing parts corresponds to that of the spray heads; the silver plating device can be used for carrying out step-by-step silver plating on glass and is good in effect and high in efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of glass processing, in particular to a graded deposition device and method for producing a glass silver-plated film for improving the density of the silver layer. Background Art

[0002] As a highly reflective functional material, silver coatings on glass are widely used in architectural mirrors, home decoration, and optical components. The density of the silver coating is a key indicator affecting its optical reflectivity, antioxidant capacity, and long-term stability. However, in existing technologies, the deposition of silver coatings on glass surfaces mostly relies on single spraying or continuous spraying. This deposition process presents the following technical issues: First, existing nozzle systems mostly use a fixed-angle spraying method, making it difficult to adjust the spray trajectory according to the width of the glass substrate or the flow rate, resulting in uneven deposition of the silver coating solution on the glass surface. In particular, the concentration distribution of silver ions varies at the edges or mid-section of the glass, easily forming a silver film structure with varying thicknesses, which in turn reduces the consistency and reflectivity of the overall film. Second, the silver ion deposition rate is difficult to precisely control during a single spraying process, often leading to rapid aggregation of silver particles in certain areas, forming coarse particles or porous structures. This results in low film density and is prone to microscopic defects such as cracks and pinholes, significantly reducing the corrosion resistance and service life of the silver coating.

[0003] Thirdly, improper control of the reaction rate between the silver-ammonia solution and the reducing agent during the deposition process can easily lead to intense localized deposition, resulting in quality defects such as splashing droplets or wrinkling on the film surface. Furthermore, traditional processes struggle to achieve multi-stage buffered deposition and precisely controlled micro-turbulence environments, hindering uniform silver deposition and defect self-repair. Summary of the Invention

[0004] In response to the above problems, a graded deposition device for producing glass silver-plated films is provided to improve the density of the silver layer. By proposing a device capable of performing graded deposition silver plating on glass, the technical problems that existing silver plating equipment easily causes the formation of a silver layer structure with uneven particles or local agglomeration on the glass surface when silver plating the glass and cannot achieve differentiated control of the staged densification process are solved.

[0005] In order to solve the problems of the prior art, the present invention provides a graded deposition device for producing glass silver-plated films with improved density of the silver layer, which is used for graded silver-plating of glass, comprising: a base frame; a transmission module horizontally arranged on the base frame for transmitting the glass; an adjustment module vertically arranged on one side of the transmission module; a silver-plating module horizontally arranged across two groups of the adjustment modules; the silver-plating module is provided with a nozzle capable of silver-plating the glass and an adjustment unit capable of controlling the spraying angle of the nozzle; a homogenizing module is arranged on the outside of the silver-plating module, and the homogenizing module is provided with a homogenizing portion arranged toward the glass, the number of homogenizing portions corresponds to the number of nozzles, and the homogenizing portion can self-adjust the homogenizing shape according to the silver-plating requirements.

[0006] Preferably, the silver-plating module also includes a rotating frame, an adjustment frame and an adjustment rod capable of adjusting the nozzle at multiple angles; the rotating frame is rotatably arranged on the top of the two groups of adjustment modules in a horizontal state; the adjustment frame is coaxially fixed in the rotating frame in a horizontal state through the adjustment unit; and the adjustment ends of the two groups of adjustment units are respectively fixedly connected to the two ends of the adjustment frame; the adjustment rod is vertically arranged between the rotating frame and the adjustment frame and the end of the adjustment rod close to the rotating frame passes through the rotating frame toward the outside of the rotating frame, and the rod part of the adjustment rod is hinged to the rotating frame and the adjustment frame respectively; the nozzle is fixedly arranged at the lower end of the adjustment rod.

[0007] Preferably, the adjusting rod is coaxially hingedly provided with a first hinge unit and a second hinge unit; the adjusting rod is fixedly connected to the rotating frame and the adjusting frame through the first hinge unit and the second hinge unit respectively.

[0008] Preferably, the adjustment unit is provided with a first linear drive capable of driving the adjustment frame to move laterally and horizontally, and a second linear drive capable of driving the adjustment frame to move longitudinally and horizontally.

[0009] Preferably, the silver plating module further includes a synchronous driver capable of driving the adjusting rod to slide longitudinally, the synchronous driver is coaxially fixedly arranged in the adjusting frame and a driving end is fixedly connected to the driving end of the adjusting rod.

[0010] Preferably, the adjustment module includes a first support frame, a bearing seat, a first servo motor and a mounting frame; there are two first support frames, and the two first support frames are vertically arranged on both sides of the base frame; the rotating frame is horizontally rotated between the two first support frames through two bearing seats; the first servo motor is horizontally fixed on one side of the first support frame through the mounting frame, and the output shaft passes through the first support frame and is transmission-connected to the rotating frame.

[0011] Preferably, the transmission module is provided with a plurality of groups of conductive rollers arranged along the long side direction of the base frame and a second servo motor capable of driving the plurality of groups of conductive rollers to rotate.

[0012] Preferably, the homogenizing module is provided with a homogenizing spray tank that can settle toward the nozzle under gravity and a guide frame that can tilt and guide the movement of the homogenizing spray tank; the homogenizing spray tank is movably arranged in an inclined state on the outside of the silver-plating module through the guide frame and the nozzle of the homogenizing spray tank is arranged toward the nozzle.

[0013] Preferably, the homogenizing module also includes a synchronization frame capable of dynamically adjusting the height of the nozzle of the homogenizing spray bin; the synchronization frame is horizontally arranged at the nozzle of the homogenizing spray bin, and one end of the synchronization frame is fixed to the nozzle of the homogenizing spray bin, and the other end is fixedly connected to the nozzle.

[0014] A graded deposition method for producing a glass silver-plated film with improved silver layer density, and a graded deposition device for producing a glass silver-plated film with improved silver layer density, comprising the following steps: S1: The glass to be treated is placed horizontally on a conveying module equipped with multiple sets of transmission rollers, and the second servo motor is activated to move the glass at a constant speed along the conveying direction, ensuring a stable reference surface for the subsequent spraying and homogenization processes; S2: Start the nozzle group. Driven by the adjustment module, the nozzle evenly sprays the first layer of silver plating agent on the glass surface according to the preset angle, position and spraying posture, controlling the spraying pressure and spray width to form an initial adhesion silver layer; S3: Start the homogenizing spray chamber, which is linked to the nozzle through a synchronous frame structure so that it always maintains the same height as the nozzle. The homogenizing spray chamber continuously sprays an inclined high-pressure airflow toward the glass surface, blowing away the excess agent that is not evenly attached, leaving only stable silver cores, reducing surface roughness and micropore formation. S4: Repeat S2 and S3 for multiple graded depositions, with each deposition layer controlled to be very thin, and homogenous airflow treatment immediately performed after each spraying; intermittent or pulsed airflow is used for impact treatment of subsequent layers to break bubbles in the layer and compact the deposition structure, thereby building a dense silver film layer by layer; S5: During the deposition process, the synchronous driver is activated based on real-time feedback to adjust the spray distance, angle, and direction from the nozzle to the glass surface, achieving dynamic adjustment of deposition and ensuring consistent film quality at different locations. S6: After the graded deposition is completed, the glass is output to the subsequent drying or developing process area through the transmission module to complete the initial formation of the silver coating film.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts a graded deposition mode of "spraying - homogenization - re-spraying - re-homogenization", which can compact the silver-plated film structure layer by layer through multiple thin-layer construction, effectively reducing the problems of high porosity and poor bonding strength of the silver layer caused by one-time thick coating, and significantly improving the adhesion and dense structure quality of the silver layer; 2. The present invention provides multiple groups of nozzles with adjustable spraying postures, and cooperates with an adjustment module to achieve precise control of the spraying angle and direction. This effectively avoids the problems of uneven silver layer thickness, local thinness or thickness caused by fixed or improper spraying angles in the prior art, and improves the uniformity and density of the film coverage. 3. The present invention uses a homogenizing module to promptly remove redundant silver liquid and retain only evenly distributed silver cores when treating excess silver plating agents sprayed on the glass surface by injecting directional high-pressure airflow. It also achieves micro-bubbles through airflow disturbance, greatly improving the surface defects of the film layer and improving the overall film surface quality. 4. The present invention realizes the synchronous linkage of height adjustment between the nozzle and the homogenizing spray bin by setting a synchronous frame, effectively avoiding the spraying deviation, wind curtain offset or height imbalance problems caused by independent adjustment, ensuring the constant spraying height, thereby improving the uniformity and density of the silver plating layer; 5. The present invention can pre-adjust the spray bin to the appropriate position and height according to the direction and position of the nozzle before spraying, and lock it to improve stability; after adjusting the direction and angle of the nozzle, the lock is released, and the homogeneous spray bin can be automatically adjusted under the joint action of the synchronization frame and the guide frame to ensure that the nozzle of the homogeneous spray bin always maintains a preset height distance from the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a graded deposition apparatus for producing glass silver coatings to improve the density of the silver layer; Figure 2 is a side view of a graded deposition apparatus for producing glass silver films to improve the density of the silver layer; Figure 3 This is a three-dimensional diagram of the silver plating module and the homogenizing module in the graded deposition device for producing glass silver-plated films to improve the density of the silver layer; Figure 4 This is an exploded perspective view of the silver plating module and the homogenizing module in a graded deposition device for producing glass silver-plated films to improve the density of the silver layer; Figure 5 It is a side view of a silver plating module and a homogenizing module in a graded deposition device for producing glass silver coating films to improve the density of the silver layer; Figure 6 yes Figure 5 Cross-sectional view at AA of FIG; Figure 7 yes Figure 6 A partial enlarged view of point B; Figure 8 yes Figure 6 A partial enlarged view of point C; Figure 9 This is a partially exploded perspective view of the silver plating module in a graded deposition device for producing glass silver films to improve the density of the silver layer; Figure 10 yes Figure 9 A partial enlarged view of point D.

[0017] The numbers in the figure are: 1. base frame; 2. transmission module; 21. conduction roller; 22. second servo motor; 23. synchronous belt; 3. adjustment module; 31. first support frame; 32. bearing seat; 33. first servo motor; 34. mounting frame; 4. silver plating module; 41. nozzle; 42. adjustment unit; 421. first linear drive; 422. second linear drive; 43. rotating frame; 44. adjustment frame; 45. adjustment rod; 46. first articulated unit; 47. second articulated unit; 48. synchronous drive; 5. homogenizing module; 51. homogenizing spray bin; 52. guide frame; 53. synchronous frame. DETAILED DESCRIPTION

[0018] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] See also Figures 1 to 10 As shown: A graded deposition device for producing glass silver-plated film to improve the density of the silver layer, which is used for graded silver plating of glass, includes: a base frame 1; a transmission module 2, horizontally arranged on the base frame 1, for transmitting the glass; an adjustment module 3, vertically arranged on one side of the transmission module 2; a silver plating module 4, horizontally arranged across between two groups of the adjustment modules 3; the silver plating module 4 is provided with a nozzle 41 capable of silver plating the glass and an adjustment unit 42 capable of controlling the spraying angle of the nozzle 41; a homogenizing module 5, arranged on the outside of the silver plating module 4, and the homogenizing module 5 is provided with a homogenizing part arranged toward the glass, the number of the homogenizing parts corresponds to the number of the nozzles 41, and the homogenizing part can self-adjust the homogenizing shape according to the silver plating requirements.

[0020] When silver plating is required on glass, multiple groups of glass substrates to be silver-plated are first placed horizontally on the transmission module 2. After the transmission module 2 is activated, the glass substrates are transported horizontally along a set transmission path at a constant speed to the silver plating station. After the glass enters the corresponding position of the silver plating module 4, the silver plating module 4 is activated, driving the nozzle 41 installed thereon to evenly spray the silver plating agent onto the glass surface. To ensure the consistency of the thickness and uniformity of the silver film, the nozzle 41 is driven by the adjustment module 3, which can achieve precise control of the spraying angle, spraying posture, and trajectory of the nozzle 41, thereby achieving multi-parameter control of the silver plating agent spraying process, avoiding quality defects such as excessively thick or thin silver films.

[0021] Furthermore, to achieve dense formation of the silver layer and effectively improve the problems of roughness, holes, cracks, and pinholes in the silver layer that are easily generated in the traditional spraying process, a homogenizing module 5 is provided. The homogenizing module 5 is operated in the synchronous stage of spraying the silver plating agent, and a high-pressure airflow is sprayed toward the glass surface through the homogenizing part. The deposited but not yet completely reacted and solidified silver plating liquid layer is subjected to cross-sectional shearing, exhaust, and thickness reduction treatment, so that the thickness of the retained silver layer is controlled within the ideal range, thereby enhancing the density and surface smoothness of the silver layer. In addition, to meet the homogenization requirements of different plating stages, the homogenizing module 5 has multiple operating modes. A continuous high-pressure purge mode can be adopted during the initial silver plating, and a pulsed airflow impact mode can be adopted during the final layer deposition to break the bubbles entrained in the silver layer and improve the structural density and continuity of the final silver layer.

[0022] By adjusting the posture of the nozzle 41 to achieve multi-angle and directional spraying control, and combining with the high-pressure airflow homogenization module 5 to dynamically treat the silver plating liquid layer, not only can the uniformity and flatness of the silver film be improved, and defects such as excessive thickness, excessive thinness, rough coating, cracks, and pinholes can be effectively avoided, but the density and adhesion strength of the silver layer can be further improved by coupling multiple graded spraying with pulsed airflow, thereby significantly improving the overall quality of the silver-plated glass film layer and product stability.

[0023] The adjustment modules 3 , silvering modules 4 and homogenizing modules 5 are arranged in multiple groups at equal intervals along the long side direction of the base frame 1 to perform multi-stage silvering treatment on the glass, which is not shown in the figure.

[0024] See also Figure 3 and Figure 9As shown: the silver plating module 4 also includes a rotating frame 43, an adjustment frame 44 and an adjustment rod 45 capable of adjusting the nozzle 41 at multiple angles; the rotating frame 43 is rotatably arranged on the top of the two groups of adjustment modules 3 in a horizontal state; the adjustment frame 44 is coaxially fixed in the rotating frame 43 in a horizontal state through the adjustment unit 42; and the adjustment ends of the two groups of adjustment units 42 are respectively fixedly connected to the two ends of the adjustment frame 44; the adjustment rod 45 is vertically arranged between the rotating frame 43 and the adjustment frame 44 and the end of the adjustment rod 45 close to the rotating frame 43 passes through the rotating frame 43 toward the outside of the rotating frame 43, and the rod part of the adjustment rod 45 is hinged to the rotating frame 43 and the adjustment frame 44 respectively; the nozzle 41 is fixedly arranged at the lower end of the adjustment rod 45.

[0025] The nozzles 41 are arranged in a plurality of groups along the circumferential direction of the axis of the rotating frame 43 , and the specifications of the nozzles 41 in each group are different.

[0026] When the spraying angle of the nozzle 41 needs to be adjusted, it is only necessary to connect an external power supply to drive the adjustment unit 42 to start. After the adjustment unit 42 is activated, it will synchronously drive the adjustment frame 44 to move horizontally. Since the rod of the adjustment rod 45 is hinged to the rotating frame 43 and the adjustment frame 44 respectively, when the adjustment frame 44 moves horizontally, it will drive the adjustment rod 45 to swing around the hinge point of the rotating frame 43, thereby adjusting the posture of the nozzle 41 fixed at the lower end of the adjustment rod 45, so that the nozzle 41 is in a controllable angle change state in the vertical plane. In this way, dynamic control of the spraying angle of the nozzle 41 is achieved. The adjustment process is stable and responsive, and angle changes can be completed without a complex structure, which is suitable for multi-angle silver plating spraying needs.

[0027] See also Figure 7 As shown, the adjusting rod 45 is coaxially hinged with a first hinge unit 46 and a second hinge unit 47 ; the adjusting rod 45 is fixedly connected to the rotating frame 43 and the adjusting frame 44 via the first hinge unit 46 and the second hinge unit 47 .

[0028] The second hinge unit 47 has the same structure as the first hinge unit 46, specifically comprising an outer ball sleeve and an inner hinge ball disposed therein. The inner hinge ball is rotatably embedded in the outer ball sleeve via a spherical retaining mechanism. Furthermore, the inner hinge ball is connected to the adjustment rod 45 in a sliding manner, allowing the adjustment rod 45 to have a certain degree of telescopic freedom in the axial direction. The first hinge unit 46 is used to form a flexible rotational connection between the adjustment rod 45 and the rotating frame 43, while the second hinge unit 47 forms an articulated linkage between the adjustment rod 45 and the adjustment frame 44. This structure allows the adjustment rod 45 to not only achieve angle adjustment around the hinge ball but also produce slight axial slippage during adjustment, thereby enabling the nozzle 41 to dynamically adjust the angle and fine-tune the axial position.

[0029] By adopting the ball hinge structure of the above-mentioned second hinge unit 47 and introducing a sliding fit method, the adjustment rod 45 has a certain longitudinal freedom on the basis of adjusting the tilt angle, realizing the dual adjustment capability of the posture and position of the nozzle 41 under complex silver plating conditions, effectively improving the coverage uniformity and controllability of the spraying of the nozzle 41, and enhancing the film formation quality and density of the silver layer.

[0030] See also Figure 8 and Figure 10 As shown, the adjusting unit 42 is provided with a first linear drive 421 capable of driving the adjusting frame 44 to move laterally and horizontally, and a second linear drive 422 capable of driving the adjusting frame 44 to move longitudinally and horizontally.

[0031] The adjusting unit 42 also includes a sliding frame and a connecting frame, and the first linear driver 421 is fixedly arranged in a horizontal state in the rotating frame 43 through the sliding frame; the driving end of the first linear driver 421 is fixedly connected to the end of the adjusting frame 44; the second linear driver 422 is fixedly arranged in a horizontal state in the rotating frame 43 through the connecting frame and is located on one side of the first linear driver 421, and the driving end of the second linear driver 422 is fixedly connected to the first linear driver 421; the first linear driver 421 and the second linear driver 422 are specifically electric push rods.

[0032] When the printhead 41 needs to be driven to swing along the short side of the base frame 1, i.e., in the left-right direction, an external power source is only required to activate the first linear actuator 421. In operation, the first linear actuator 421 drives the adjustment frame 44 to slide laterally along the short side of the base frame 1, thereby driving the printhead 41 to achieve precise left-right swing adjustment. Similarly, if the printhead 41 needs to be swing along the long side of the base frame 1, i.e., in the front-back direction, an external power source is only required to activate the second linear actuator 422, which drives the adjustment frame 44 to slide longitudinally along the long side of the base frame 1, thereby achieving displacement adjustment of the printhead 41 in the front-back direction.

[0033] By setting up two sets of independent linear drives arranged along the short and long sides of the base frame 1, the nozzle 41 can be precisely swung and adjusted in the left and right and front and back directions in the horizontal plane, thereby improving the coverage and flexibility of the spraying path of the nozzle 41, effectively ensuring the uniform spraying of the silver plating agent on the glass surface, reducing the problems of spraying overlap or blind spots caused by a single angle, and further improving the density and consistency of the silver film.

[0034] See also Figure 10 As shown, the silver plating module 4 further includes a synchronous driver 48 capable of driving the adjusting rod 45 to slide longitudinally. The synchronous driver 48 is coaxially fixedly arranged in the adjusting frame 44 and the driving end is fixedly connected to the driving end of the adjusting rod 45.

[0035] The synchronous driver 48 is specifically an airbag, but is not limited to an airbag, and is intended to synchronously drive the multiple groups of adjustment rods 45 to move.

[0036] When the vertical distance between nozzle 41 and the glass surface needs to be precisely adjusted to accommodate varying glass thicknesses or different spraying requirements, simply connect an external air source to inflate the airbag. As the airbag expands under pressure, it lifts the adjustment rod 45 vertically, thereby raising the nozzle 41, which is fixed to the lower end of the adjustment rod 45. Conversely, when the air pressure is released, the airbag retracts, and the nozzle 41 moves downward along with the adjustment rod 45. By adjusting the airbag's inflation volume, the vertical height of nozzle 41 can be infinitely adjusted to meet the required distance between nozzle 41 and the substrate under different process conditions.

[0037] See also Figure 3 As shown: the adjustment module 3 includes a first support frame 31, a bearing seat 32, a first servo motor 33 and a mounting frame 34; there are two first support frames 31, and the two first support frames 31 are vertically arranged on both sides of the base frame 1; the rotating frame 43 is horizontally rotated between the two first support frames 31 through two bearing seats 32; the first servo motor 33 is horizontally fixed on one side of the first support frame 31 through the mounting frame 34, and the output shaft passes through the first support frame 31 and is transmission-connected to the rotating frame 43.

[0038] When the spraying angle of the nozzle 41 needs to be further adjusted, or when it is necessary to switch nozzles 41 with different spraying effects according to different silver plating process requirements, it is only necessary to connect an external power supply to drive the first servo motor 33. When in operation, the first servo motor 33 drives its output shaft to rotate, thereby synchronously driving the rotating frame 43 to rotate, so that the nozzle 41 mounted on the rotating frame 43 is adjusted to the target spraying angle or target spraying position. This allows for precise control of the spraying angle of the nozzle 41 and efficient switching between multiple nozzle positions.

[0039] By setting the first servo motor 33 to link the rotating frame 43, not only the automatic and high-precision adjustment of the spraying angle of the nozzle 41 is achieved, but also the rapid switching operation between nozzles 41 of multiple specifications is supported, meeting the differentiated requirements for the quality of the silver layer under different process parameters such as spray coverage range, particle size distribution, pressure control, etc., thereby effectively improving the density, uniformity and process adaptability of the silver film.

[0040] See also Figure 2 As shown, the transmission module 2 is provided with a plurality of conductive rollers 21 arranged along the long side direction of the base frame 1 and a second servo motor 22 capable of driving the plurality of conductive rollers 21 to rotate.

[0041] The transmission module 2 further includes a synchronous belt 23 , and the multiple groups of conductive rollers 21 are connected to each other through the synchronous belt 23 .

[0042] To convey the glass substrate horizontally to the silver-plating module 4, an external power source is required to drive the second servo motor 22. When the second servo motor 22 is in operation, its output shaft rotates, driving the coaxially connected active transmission roller. This active transmission roller is connected to the remaining transmission rollers via a timing belt 23 assembly, achieving synchronized rotation of multiple transmission rollers. Driven by these synchronous rotations, the transmission rollers convey the glass substrate horizontally along a predetermined path to the silver-plating module 4 at a uniform speed, thus completing the automatic conveying process.

[0043] See also Figure 2 and Figure 5 As shown: the homogenizing module 5 is provided with a homogenizing spray bin 51 which can settle toward the nozzle 41 under gravity and a guide frame 52 which can guide the homogenizing spray bin 51 to move at an angle; the homogenizing spray bin 51 is movably arranged in an inclined state on the outside of the silver plating module 4 through the guide frame 52 and the nozzle of the homogenizing spray bin 51 is arranged toward the nozzle 41.

[0044] The guide frame 52 is fixedly mounted on an outer wall of the rotating frame 43 and parallel to the long side of the rotating frame 43 .

[0045] When it is necessary to homogenize the silver plating agent layer sprayed onto the glass surface by the silver plating module 4, it is only necessary to establish an air path connection between the external air source output module and the air inlet interface of the homogenizing spray chamber 51, and start the air source to continuously supply air to the homogenizing spray chamber 51. The high-pressure airflow entering the homogenizing spray chamber 51 is guided by the internal guide structure and then sprayed from the nozzle toward the glass surface at a set angle, forming a group of high-speed air curtain layers obliquely distributed along the glass surface. This air curtain layer can quickly blow away the excess liquid in the silver plating agent layer with uneven thickness covering the glass surface, leaving only the silver plating liquid film with uniform adhesion and thickness controlled within the target range. Furthermore, by adjusting the air supply pressure or the airflow pulse mode, fine adjustment can be achieved for different film formation stages or silver plating layers of different thicknesses, thereby adapting to the process requirements of multiple graded deposition.

[0046] By installing a homogenizing spray chamber 51 with an inclined air curtain structure, the silver plating agent sprayed onto the glass surface is dynamically homogenized after initial deposition, effectively removing localized accumulation or areas of excessive thickness, and improving the uniformity and density of the coating. Furthermore, this air curtain treatment method allows for graded control of film thickness without compromising the continuity of the silver layer, significantly reducing defects such as roughness, voids, and pinholes in the silver film caused by uneven deposition, thereby improving the optical performance and stability of the final silver-plated film.

[0047] See also Figure 2 and Figure 5 As shown: the homogenizing module 5 also includes a synchronization frame 53 that can dynamically adjust the nozzle height of the homogenizing spray bin 51; the synchronization frame 53 is horizontally arranged at the nozzle of the homogenizing spray bin 51, and one end of the synchronization frame 53 is fixed to the nozzle of the homogenizing spray bin 51, and the other end is fixedly connected to the nozzle 41.

[0048] The synchronous frame 53 is composed of a first sliding frame and a second sliding frame that can slide toward each other.

[0049] Through the synchronization frame 53 structure arranged between the nozzle 41 and the homogeneous spray bin 51, when the nozzle 41 is adjusted in longitudinal height, the synchronization frame 53 can synchronously drive the homogeneous spray bin 51 to perform vertical linkage displacement in the same direction and the same stroke, thereby ensuring that the nozzle of the homogeneous spray bin 51 always maintains a preset height distance from the nozzle 41.

[0050] When there is no need to dynamically adjust the homogenizing spray bin 51, after fixing the homogenizing spray bin 51 to a preset height according to the homogenizing requirements, it is only necessary to tighten the locking bolts threaded on the outer wall of the guide frame 52 to lock the homogenizing spray bin 51 and the guide frame 52.

[0051] By setting up the synchronization frame 53, the height adjustment between the nozzle 41 and the homogeneous spray chamber 51 is synchronized and linked, effectively avoiding the spraying deviation, wind curtain offset or height imbalance problems caused by independent adjustment, ensuring the constant spraying height, thereby improving the uniformity and density of the silver plating layer, and improving the coating consistency and product yield.

[0052] A graded deposition method for producing a glass silver-plated film with improved silver layer density, and a graded deposition device for producing a glass silver-plated film with improved silver layer density, comprising the following steps: S1: The glass to be processed is placed horizontally on a transmission module 2 equipped with multiple sets of transmission rollers, and the second servo motor 22 is started to move the glass at a constant speed along the transmission direction to ensure a stable reference surface for the subsequent spraying and homogenization processes; S2: Start the nozzle group. Driven by the adjustment module 3, the nozzle 41 evenly sprays the first layer of silver plating agent on the glass surface according to the preset angle, position and spraying posture, controlling the spraying pressure and spray width to form an initial adhesion silver layer. S3: The homogenizing spray chamber 51 is activated. The spray chamber and the nozzle 41 are linked by a synchronous frame 53 structure so that the spray chamber always maintains the same height as the nozzle 41. The homogenizing spray chamber 51 continuously sprays an inclined high-pressure airflow toward the glass surface, blowing away the excess agent that is not evenly attached, leaving only stable silver nuclei, thereby reducing surface roughness and micropore formation. S4: Repeat S2 and S3 for multiple graded depositions, with each deposition layer controlled to be very thin, and homogenous airflow treatment immediately performed after each spraying; intermittent or pulsed airflow is used for impact treatment of subsequent layers to break bubbles in the layer and compact the deposition structure, thereby building a dense silver film layer by layer; S5: During the deposition process, the synchronous driver 48 is activated according to real-time feedback to adjust the spraying distance, angle and direction of the nozzle 41 to the glass surface, so as to achieve dynamic adjustment of the deposition and ensure the consistency of the film quality at different locations; S6: After the graded deposition is completed, the glass is continuously output to the subsequent drying or developing process area through the transmission module 2 to complete the preliminary formation of the silver coating film.

[0053] The present invention can not only perform step-by-step silver plating on glass, but also has good effect and high efficiency.

[0054] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A graded deposition device for producing glass silver-plated films to improve the density of the silver layer, used for graded silver plating of glass, characterized in that: include: A base frame; a transmission module, horizontally arranged on the base frame, for transmitting the glass; an adjustment module, vertically arranged on one side of the transmission module; a silvering module, horizontally arranged across two groups of the adjustment modules; the silvering module is provided with a nozzle capable of silvering the glass and an adjustment unit capable of controlling the spraying angle of the nozzle; a homogenizing module, arranged on the outside of the silvering module, and the homogenizing module is provided with a homogenizing part arranged toward the glass, the number of the homogenizing parts corresponds to the number of the nozzles, and the homogenizing part can self-adjust the homogenizing shape according to the silvering requirements.

2. The graded deposition device for producing glass silver-plated film with improved silver layer density according to claim 1, the silver-plating module further comprises a rotating frame, an adjusting frame and an adjusting rod capable of adjusting the nozzle at multiple angles; the rotating frame is rotatably arranged on the top of the two groups of adjusting modules in a horizontal state; the adjusting frame is coaxially fixed in the rotating frame in a horizontal state through the adjusting unit; and the adjusting ends of the two groups of adjusting units are respectively fixedly connected to the two ends of the adjusting frame; the adjusting rod is vertically arranged between the rotating frame and the adjusting frame, and the end of the adjusting rod close to the rotating frame passes through the rotating frame toward the outside of the rotating frame, and the rod portion of the adjusting rod is hinged to the rotating frame and the adjusting frame respectively; the nozzle is fixedly arranged at the lower end of the adjusting rod.

3. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 2, characterized in that: The adjusting rod is coaxially hinged with a first hinge unit and a second hinge unit; the adjusting rod is fixedly connected to the rotating frame and the adjusting frame through the first hinge unit and the second hinge unit.

4. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 2, characterized in that: The adjusting unit is provided with a first linear drive capable of driving the adjusting frame to move laterally and horizontally, and a second linear drive capable of driving the adjusting frame to move longitudinally and horizontally.

5. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 3, characterized in that: The silver plating module further includes a synchronous driver capable of driving the adjusting rod to slide longitudinally. The synchronous driver is coaxially fixedly arranged in the adjusting frame and a driving end thereof is fixedly connected to the driving end of the adjusting rod.

6. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 2, characterized in that: The adjustment module includes a first support frame, a bearing seat, a first servo motor and a mounting frame; there are two first support frames, and the two first support frames are vertically arranged on both sides of the base frame; the rotating frame is horizontally rotated between the two first support frames through two bearing seats; the first servo motor is horizontally fixed on one side of the first support frame through the mounting frame, and the output shaft passes through the first support frame and is transmission-connected to the rotating frame.

7. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 1, characterized in that: The transmission module is provided with a plurality of groups of conductive rollers arranged along the long side direction of the base frame and a second servo motor capable of driving the plurality of groups of conductive rollers to rotate.

8. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 1, characterized in that: The homogenizing module is provided with a homogenizing spray bin that can settle toward the nozzle under gravity and a guide frame that can tilt and guide the movement of the homogenizing spray bin; the homogenizing spray bin is movably arranged in an inclined state on the outside of the silver-plating module through the guide frame, and the nozzle of the homogenizing spray bin is arranged toward the nozzle.

9. The hierarchical deposition device for producing glass silver-plated films with improved silver layer density according to claim 8, characterized in that: The homogenizing module also includes a synchronization frame capable of dynamically adjusting the nozzle height of the homogenizing spray bin; the synchronization frame is horizontally arranged at the nozzle of the homogenizing spray bin, and one end of the synchronization frame is fixed to the nozzle of the homogenizing spray bin, and the other end is fixedly connected to the nozzle.

10. A graded deposition method for producing a glass silver-plated film with improved silver layer density, applied to a graded deposition device for producing a glass silver-plated film with improved silver layer density as claimed in any one of claims 1 to 9, comprising the following steps: S1: The glass to be treated is placed horizontally on a conveying module equipped with multiple sets of transmission rollers, and the second servo motor is activated to move the glass at a constant speed along the conveying direction, ensuring a stable reference surface for the subsequent spraying and homogenization processes; S2: Start the nozzle group. Driven by the adjustment module, the nozzle evenly sprays the first layer of silver plating agent on the glass surface according to the preset angle, position and spraying posture, controlling the spraying pressure and spray width to form an initial adhesion silver layer; S3: Start the homogenizing spray chamber, which is linked to the nozzle through a synchronous frame structure so that it always maintains the same height as the nozzle. The homogenizing spray chamber continuously sprays an inclined high-pressure airflow toward the glass surface, blowing away the excess agent that is not evenly attached, leaving only stable silver cores, reducing surface roughness and micropore formation. S4: Repeat S2 and S3 for multiple graded depositions, with each deposition layer controlled to be very thin, and homogenous airflow treatment immediately performed after each spraying; intermittent or pulsed airflow is used for impact treatment of subsequent layers to break bubbles in the layer and compact the deposition structure, thereby building a dense silver film layer by layer; S5: During the deposition process, the synchronous driver is activated based on real-time feedback to adjust the spray distance, angle, and direction from the nozzle to the glass surface, achieving dynamic adjustment of deposition and ensuring consistent film quality at different locations. S6: After the graded deposition is completed, the glass is output to the subsequent drying or developing process area through the transmission module to complete the initial formation of the silver coating film.

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