Full-automatic glazing device for false teeth and glazing method using full-automatic glazing device

Abstract

The invention relates to a full-automatic glazing device for false teeth and a glazing method using the full-automatic glazing device for the false teeth, the full-automatic glazing device for the false teeth comprises a glaze storage module, a metering module, a mixing module, a spraying module and a monitoring module, in the glazing process, according to feature information of a sprayed glaze layer, real-time adjustment of the proportion of glaze raw materials and spraying parameters is achieved, and the spraying quality is improved. The glazing method using the full-automatic false tooth glazing device avoids the problems of poor glaze layer uniformity, glaze waste, low glazing efficiency and the like caused by manual brushing; compared with manual brush coating, the glaze layer uniformity of the obtained glazed false tooth is improved by 82%, the glaze utilization rate is improved by 157%, the light transmission consistency after sintering is improved by 76%, and the requirements of a patient for the aesthetic property and durability of false tooth repair are met.

Description

Technical Field

[0001] This invention relates to the technical field of dental prosthesis processing equipment and processing methods, and in particular to a fully automatic dental prosthesis glazing device and a glazing method using the same. Background Technology

[0002] Enameling is a crucial step in denture fabrication. It involves applying one or more layers of enamel material to the surface of the denture and then sintering it to harden and bond it together. This process mimics the appearance and luster of natural teeth while preventing the accumulation of plaque and food debris, thus increasing the aesthetics, durability, and comfort of the denture. In addition, enamel can also repair minor defects in the denture, such as tiny cracks and scratches, making the denture more perfect.

[0003] Traditional denture enamel application is generally done by hand, which has several drawbacks: ① Inefficiency: Hand enamel application is not only time-consuming and laborious, but it is also difficult to ensure that each denture can be treated with a high-quality enamel layer in a short time; ② Unstable enamel quality: Manual operation makes it difficult to guarantee the uniformity and consistency of the enamel layer quality; due to the susceptibility of manual operation to various factors, such as the operator's experience, skill level, and mental state, it is difficult to achieve uniform standards in terms of enamel uniformity, gloss, and wear resistance; ③ Manual operation is also prone to errors, such as enamel layers that are too thick, too thin, uneven, or prone to brush marks / scratches or even damage, which seriously affect the aesthetics and durability of the denture.

[0004] However, while current denture glazing devices have replaced manual brushing to some extent, they generally require the glaze to be prepared according to empirical ratios before glazing, and the spraying parameters are fixed during the spraying process, making it impossible to adjust the glaze material ratio and spraying parameters in real time, resulting in unstable glaze quality. Moreover, some devices may obstruct the glaze when clamping the denture, causing incomplete glazing in certain areas and affecting the overall protection of the denture by the glaze surface. When glazing different denture models, the glazing nozzle cannot be adjusted according to the size of the denture, resulting in either a small or large glazing area, requiring multiple adjustments to the denture's position, and wasting glaze, leading to low efficiency in denture glazing.

[0005] For example, CN220124857U discloses a rapid glazing device for dentures. This device relies on the sloping top surface of the support block to allow the glaze to flow downwards, while simultaneously using a scraper to remove the glaze from the sloping surface, thereby improving the uniformity of glazing to some extent. However, it is evident that it cannot adjust the spraying / scraping parameters in real time as needed, resulting in poor glaze quality. Furthermore, it still cannot avoid scratches caused by scraping, and it requires the glaze to be prepared in advance according to empirical proportions. During the glazing process, it cannot achieve real-time adjustment of the glaze ratio, resulting in poor batch stability.

[0006] For example, CN115068144A discloses a device for comprehensive glazing of dentures. In this device, the denture is clamped and fixed between two clamping plates. During glazing, the glaze is easily blocked by the clamping plates, resulting in incomplete glazing of the denture. This batch spraying has dead zones in the nozzle, affecting the overall protection of the denture by the glaze surface. Although the glazing nozzle of this device is tilted to increase the spray range on the denture, the nozzle angle is fixed and the glaze is pre-prepared, making it difficult to accurately glaze according to the individual color, shape and size of the patient's teeth. This results in the final restoration effect not matching the natural teeth well enough.

[0007] Therefore, how to provide a novel fully automatic denture glazing device and method to avoid the problems of poor uniformity, brush marks, and low glazing efficiency caused by manual brushing, and to enable real-time adjustment of the glaze material ratio and spraying parameters during the glazing process to meet personalized needs, improve the fit with natural teeth, and increase the utilization rate of glaze, is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides a fully automatic enamel coating device for dentures and a enamel coating method using the same. This method involves zero-contact spraying, eliminating manual intervention. It achieves precise quantitative delivery of enamel and adaptive dynamic control of spraying parameters, improving the uniformity of the enamel layer and the utilization rate of the enamel. This results in high-quality enamel dentures with zero brush marks, zero bubbles, and zero color difference, making them more compatible with natural teeth and meeting the personalized dental restoration needs of different patients.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] In a first aspect, the present invention provides a fully automatic denture enamel application device, the fully automatic denture enamel application device comprising:

[0011] Glaze storage module, used to store glaze raw materials;

[0012] The metering module is used to receive the characteristic information of the sprayed glaze layer fed back by the monitoring module, and to adjust the proportion of glaze raw materials output by the glaze storage module in real time.

[0013] A mixing module is used to mix the glaze raw materials output from the glaze storage module to obtain glaze;

[0014] The spraying module receives feature information of the sprayed glaze layer from the monitoring module, adjusts the spraying parameters in real time, and sprays the glaze obtained by the mixing module onto the denture surface according to the spraying parameters.

[0015] The monitoring module monitors the characteristic information of the enamel layer sprayed on the surface of the denture in real time and feeds it back to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds it back to the spraying module to adjust the spraying parameters in real time.

[0016] The fully automatic glazing device for dentures described in this invention utilizes a metering module and a monitoring module that work dynamically and adaptively with the spraying module. During the glazing process, the monitoring module monitors the characteristics of the glaze layer already sprayed on the denture surface in real time and feeds this information back to the metering module to adjust the proportion of glaze raw materials in real time, and / or feeds it back to the spraying module to adjust the spraying parameters in real time. This achieves fully automatic glazing of dentures, improves the uniformity of the glaze layer and its fit with natural teeth, increases the utilization rate of glaze, and avoids serious waste. It not only solves the problem of existing spraying processes relying solely on experience to pre-mix glaze proportions, resulting in large color differences between glazed dentures and natural teeth and poor batch stability, but also solves the problem that existing spraying equipment cannot adaptively adjust the spraying parameters, making it unable to meet the needs of restoring dentures with complex curvatures and different colors, shapes, or sizes.

[0017] In addition, the spraying module of the fully automatic denture glazing device of the present invention specifically uses a piezoelectric atomizing nozzle, that is, the glaze is piezoelectrically atomized before being sprayed onto the denture surface. Compared with the traditional nozzles that directly spray the glaze without the piezoelectric atomization step, the piezoelectric atomizing nozzle of the present invention can refine the sprayed glaze, while effectively avoiding nozzle clogging, and further improving the uniformity of the obtained glaze layer.

[0018] Preferably, the glaze storage module includes:

[0019] Glaze powder storage component, used to store glaze powder;

[0020] Diluent storage component, used to store the diluent for the glaze powder.

[0021] Preferably, the metering module includes:

[0022] A weight measuring component is used to measure the mass of the glaze powder output from the glaze powder storage component;

[0023] A flow metering component is used to measure the flow rate of the diluent output from the diluent storage component.

[0024] Preferably, the characteristic information of the sprayed glaze layer includes any one or a combination of at least two of the following: glaze layer thickness, glaze layer color, or glaze layer coverage.

[0025] Preferably, the spraying module includes a piezoelectric atomizing nozzle.

[0026] Preferably, the spraying parameters include the distance between the piezoelectric atomizing nozzle and the denture surface, the vibration frequency of the piezoelectric atomizing nozzle, the atomization pressure of the piezoelectric atomizing nozzle, or the orifice diameter of the piezoelectric atomizing nozzle.

[0027] The distance between the piezoelectric atomizing nozzle and the denture surface, i.e., the spray distance, is automatically adjusted according to the curvature of the unpainted denture surface and the curvature of the painted glaze surface. The vibration frequency of the piezoelectric atomizing nozzle refers to the vibration frequency of the piezoelectric ceramic sheet in the piezoelectric atomizing nozzle for breaking glaze droplets. The atomization pressure of the piezoelectric atomizing nozzle and the orifice diameter of the piezoelectric atomizing nozzle are dynamically matched with the viscosity of the glaze and the characteristic information of the painted glaze layer to improve the spraying effect and thus improve the quality of the glaze layer.

[0028] Optionally, the spray distance is 2 to 5 mm, for example, it can be 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm or 5 mm, etc.;

[0029] Optionally, the vibration frequency of the piezoelectric ceramic sheet is 120 to 150 kHz, for example, it can be 120 kHz, 130 kHz, 140 kHz or 150 kHz.

[0030] Optionally, the atomization pressure of the piezoelectric atomizing nozzle is 0.3 to 0.8 MPa, for example, it can be 0.3 MPa, 0.4 MPa, 0.5 MPa, 0.6 MPa, 0.7 MPa or 0.8 MPa.

[0031] Optionally, the orifice diameter of the piezoelectric atomizing nozzle is 0.1 to 0.5 mm, for example, it can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm or 0.5 mm.

[0032] Preferably, the mixing module includes a mixing component, a stirring component, a viscosity detection component, and a temperature monitoring component.

[0033] Preferably, the stirring component is disposed inside the mixing component.

[0034] Preferably, the viscosity detection component is signal-connected to the metering module to detect the viscosity of the glaze in the mixing component and feed it back to the metering module to synchronously adjust the proportion of glaze raw materials in real time.

[0035] Preferably, the temperature monitoring component is used to detect the temperature of the glaze inside the mixing component and adjust the internal temperature of the mixing component in real time.

[0036] The fully automatic enamel application device for dentures described in this invention utilizes the temperature monitoring component to maintain a constant internal temperature of the mixing component during use.

[0037] Preferably, the internal temperature of the mixing component is 24.5 to 25.5°C, for example, it can be 24.5°C, 24.8°C, 25.0°C, 25.2°C or 25.5°C.

[0038] Preferably, the spraying module further includes a movable support component for supporting the piezoelectric atomizing nozzle and moving the position of the piezoelectric atomizing nozzle.

[0039] Preferably, the monitoring module includes an image acquisition component, a thickness monitoring component, a data analysis component, and a control component.

[0040] Preferably, the image acquisition component is used to acquire the color of the glaze layer and / or the coverage of the glaze layer on the surface of the denture, and to feed it back to the data analysis component.

[0041] Preferably, the thickness monitoring component is used to monitor the thickness of the enamel layer sprayed on the surface of the denture and to feed it back to the data analysis component.

[0042] Preferably, the data analysis component integrates the feature information of the sprayed glaze layer received by the image acquisition component and the thickness monitoring component, performs data analysis, and calculates the required proportion of glaze raw materials and / or spraying parameters.

[0043] Preferably, the control component feeds back the required proportion of glaze raw materials to the metering module to adjust the proportion of glaze raw materials in real time, and / or feeds back the required spraying parameters to the spraying module to adjust the spraying parameters in real time.

[0044] Preferably, the fully automatic denture glazing device further includes a tooling fixing module, an electrostatic adsorption module, and a glaze recovery module.

[0045] Preferably, the tooling fixing module is used to fix the denture.

[0046] Preferably, the electrostatic adsorption module is electrically connected to the tooling fixing module and is used to adsorb the glaze sprayed by the spraying module onto the surface of the denture.

[0047] During use, the fully automatic enamel application device for dentures of the present invention preferably applies a voltage of 5 to 10 kV to the electrostatic adsorption module, such as 5 kV, 6 kV, 7 kV, 8 kV, 9 kV or 10 kV.

[0048] Preferably, the glaze recovery module is connected to the spraying module and is used to recover residual glaze and reuse it in the mixing module.

[0049] It is worth noting that the spraying process of the spraying module described in this invention is carried out in a sealed environment. Therefore, a sealed shell is provided around the spraying module. The glaze splashed during the spraying process can be recovered by the glaze recovery module and reused in the mixing module, further reducing glaze waste and reducing the cost of glazing dentures.

[0050] Secondly, the present invention provides a fully automatic glazing method for dentures, wherein the fully automatic glazing method for dentures is performed using the fully automatic glazing device for dentures described in the first aspect.

[0051] The fully automatic glazing method for dentures described in this invention uses the fully automatic glazing device described in the first aspect. It eliminates manual intervention and avoids the dependence on operator experience that leads to uneven glaze thickness, incomplete coverage of complex curved surfaces, serious glaze waste, poor batch stability, and problems such as brush marks causing orange peel effect on the denture surface and bubbles / vacuum defects after sintering. It achieves precise quantitative delivery of glaze raw materials and dynamic adaptive adjustment of spraying parameters, meeting the personalized needs of different patients and achieving high-quality glazed dentures with zero brush marks, zero bubbles, and zero color difference.

[0052] Preferably, the fully automatic enamel application method for dentures includes the following steps:

[0053] The mixed glaze raw materials are then sprayed onto the surface of the denture after being piezoelectrically atomized. The characteristic information of the glaze layer sprayed on the denture surface is monitored in real time to synchronously adjust the spraying parameters and / or the proportion of the glaze raw materials in real time, so as to obtain a glazed denture.

[0054] Preferably, when the thickness of the sprayed glaze layer is ≥30μm (e.g., it can be 30μm, 35μm, 40μm, 45μm or 50μm, etc.), the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:x, where 3≤x≤5, for example, it can be 1:3, 1:3.5, 1:4, 1:4.5 or 1:5, etc.

[0055] Preferably, when the thickness of the sprayed glaze layer is <30μm (e.g., it can be 29μm, 26μm, 24μm, 22μm, 20μm, 18μm, 16μm, 14μm, 12μm or 10μm, etc.), the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:y, where 2≤y<3, for example, it can be 1:2, 1:2.2, 1:2.4, 1:2.6, 1:2.8 or 1:2.9, etc.

[0056] Preferably, when the glaze coverage of the sprayed glaze layer is ≥90% (e.g., it can be 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100%), the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 20-50mm, for example, it can be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, or 50mm.

[0057] Preferably, when the glaze coverage of the sprayed glaze layer is <90% (e.g., it can be 89%, 85%, 80%, 75%, 70%, 65%, 60%, 55%, 50%, 45%, or 40%), the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 10-20mm, for example, it can be 10mm, 12mm, 14mm, 16mm, 18mm, or 20mm.

[0058] Preferably, when the thickness of the sprayed glaze layer is ≥30μm (e.g., it can be 30μm, 35μm, 40μm, 45μm or 50μm, etc.), the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 120-130kHz, for example, it can be 120kHz, 122kHz, 124kHz, 126kHz, 128kHz or 130kHz, etc.

[0059] Preferably, when the thickness of the sprayed glaze layer is <30μm (e.g., it can be 29μm, 26μm, 24μm, 22μm, 20μm, 18μm, 16μm, 14μm, 12μm or 10μm, etc.), the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 140-150kHz, for example, it can be 140kHz, 142kHz, 144kHz, 146kHz, 148kHz or 150kHz, etc.

[0060] Preferably, when the thickness of the sprayed glaze layer is ≥30μm (e.g., it can be 30μm, 35μm, 40μm, 45μm or 50μm, etc.), the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.1 to 0.3mm, for example, it can be 0.1mm, 0.15mm, 0.2mm, 0.25mm or 0.3mm, etc.

[0061] Preferably, when the thickness of the sprayed glaze layer is <30μm (e.g., it can be 29μm, 26μm, 24μm, 22μm, 20μm, 18μm, 16μm, 14μm, 12μm or 10μm, etc.), the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.3 to 0.5mm, but not including 0.3mm, for example, it can be 0.35mm, 0.4mm, 0.45mm or 0.5mm, etc.

[0062] Compared with the prior art, the present invention has at least the following beneficial effects:

[0063] (1) The fully automatic denture glazing device provided by the present invention, through the design of a metering module and a monitoring module, works in dynamic adaptive coordination with the spraying module. During the glazing process, it realizes the real-time matching of the optimal glaze material ratio and the optimal spraying parameters based on the characteristic information of the glaze layer already sprayed on the denture surface, thereby obtaining a glaze layer with uniform thickness and color. It can also meet the personalized needs of different patients with different curvatures, colors and sizes, improve the utilization rate of glaze, shorten the glazing time, improve the glazing efficiency, reduce the repair rate, and meet the current needs of patients for the aesthetics and durability of dentures.

[0064] (2) The fully automatic glazing method for dentures provided by the present invention solves the defects of poor uniformity of glaze layer, serious waste of glaze material, low operation efficiency, large surface roughness and inconsistent light transmittance after sintering, resulting in a high rework rate when glazing with traditional manual brushing and existing traditional spraying equipment. Compared with traditional manual brushing, the uniformity of glaze layer is improved by more than 82%, the operation time per denture is shortened by more than 83%, the utilization rate of glaze material is increased by more than 157%, the surface roughness is reduced by more than 82%, the light transmittance consistency after sintering is improved by more than 76%, and the rework rate is reduced by more than 85%, thus obtaining high-quality glazed dentures with zero brush marks, zero bubbles and zero color difference. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the structure of the fully automatic enamel application device for dentures provided in Embodiment 1 of the present invention. Detailed Implementation

[0066] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, the following examples are merely simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

[0067] It is worth noting that the fully automatic glazing device for dentures and the glazing method using it described in this invention do not impose any restrictions on the glaze powder and diluent. The following examples or comparative examples use denture porcelain powder ACP013T and isopropanol as diluents.

[0068] The glazing method of the fully automatic glazing device for dentures of the present invention specifically includes the following steps:

[0069] (1) Clamping and positioning: Fix the denture to be enamelted onto the tooling fixing module, and start the image acquisition component to take pictures for coarse positioning;

[0070] (2) Three-dimensional scanning: The image acquisition component is activated to perform a full-range scan of the denture to be enamelized, and a three-dimensional digital model is generated by the data analysis component;

[0071] (3) Path planning: Initiate the automatic processing of the three-dimensional digital model described in step (2) of the control component to generate the spraying path, specifically including:

[0072] Zoning: The surface of the denture to be sprayed is divided into different areas such as flat surfaces, gently curved surfaces, convex surfaces, or concave surfaces (such as pits and fissures) according to the curvature;

[0073] Path generation: Optimal spraying paths are generated for different areas. For flat and gently curved surfaces, parallel line scanning paths are used; for high-curvature concave surfaces (grooves), spiral filling paths are used to ensure no dead corners are covered.

[0074] (4) Matching parameters: Automatically set different parameters such as nozzle vibration frequency, spray distance, nozzle orifice diameter and atomization pressure for different areas. Start the feeder and gear pump according to the preset ratio (e.g., glaze powder: diluent = 10g: 4.5mL). After being fully mixed by the mixing module, it is delivered to the piezoelectric atomizing nozzle. Then, perform precision spraying according to the spraying path described in step (3).

[0075] (5) Real-time control:

[0076] Real-time adjustment of the proportion of glaze raw materials: Based on the characteristic information of the sprayed glaze layer fed back by the monitoring module, the proportion of glaze raw materials output by the glaze storage module is adjusted in real time.

[0077] Specifically, when the thickness of the sprayed glaze layer is ≥30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:x, where 3≤x≤5;

[0078] When the thickness of the sprayed glaze layer is <30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:y, where 2≤y<3;

[0079] Real-time adjustment of spraying parameters: Based on the characteristic information of the sprayed glaze layer fed back by the monitoring module, the spraying parameters are adjusted in real time.

[0080] When the glaze coverage of the sprayed glaze layer is ≥90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 20-50mm.

[0081] When the glaze coverage of the sprayed glaze layer is less than 90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 10-20 mm.

[0082] When the thickness of the sprayed glaze layer is ≥30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 120~130kHz.

[0083] When the thickness of the sprayed glaze layer is <30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 140-150kHz.

[0084] When the thickness of the sprayed glaze layer is ≥30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.1~0.3mm;

[0085] When the thickness of the sprayed glaze layer is <30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.3-0.5mm, but not including 0.3mm.

[0086] (6) Post-coating treatment completed:

[0087] Pre-curing: After the spraying is completed, the denture with the sprayed glaze layer is moved with the tooling to the infrared heating zone in the station (60-80℃, for example, 60℃, 65℃, 70℃, 75℃ or 80℃, etc.) and baked for 60-120s (for example, 60s, 80s, 100s or 120s, etc.) to allow the glaze layer to be initially cured and to facilitate safe handling;

[0088] Sintering: The pre-cured denture is removed from the tooling and placed in a sintering furnace for sintering according to the procedure required by the glaze powder. The organic components (binders and stabilizers, etc.) will completely decompose and volatilize at high temperature, leaving no residue.

[0089] (7) Obtain enamel dentures.

[0090] I. Implementation Examples

[0091] Example 1

[0092] This embodiment provides a fully automatic denture enamel application device, such as... Figure 1 As shown, the fully automatic denture enamel application device includes:

[0093] A glaze storage module for storing glaze raw materials; the glaze storage module includes: a glaze powder storage component for storing glaze powder; and a diluent storage component for storing diluent for the glaze powder.

[0094] The metering module is used to receive the characteristic information of the sprayed glaze layer fed back by the monitoring module and adjust the proportion of glaze raw materials output by the glaze storage module in real time; the metering module includes: a weight metering component for measuring the mass of glaze powder output by the glaze powder storage component; and a flow metering component for measuring the flow rate of diluent output by the diluent storage component.

[0095] A mixing module is used to mix the glaze raw materials output from the glaze storage module to obtain glaze. The mixing module includes a mixing component, a stirring component, a viscosity detection component, and a temperature monitoring component. The stirring component is disposed inside the mixing component. The viscosity detection component is signal-connected to the metering module to detect the viscosity of the glaze inside the mixing component and feeds it back to the metering module to synchronously adjust the proportion of glaze raw materials in real time. The temperature monitoring component is used to detect the temperature of the glaze inside the mixing component and adjust the internal temperature of the mixing component in real time.

[0096] The spraying module includes a piezoelectric atomizing nozzle, which receives feature information of the sprayed glaze layer from the monitoring module, adjusts the spraying parameters in real time, and sprays the glaze obtained by the mixing module onto the denture surface according to the spraying parameters; the spraying module also includes a movable support component for supporting the piezoelectric atomizing nozzle and moving the position of the piezoelectric atomizing nozzle.

[0097] The monitoring module monitors the characteristic information of the enamel layer already sprayed on the denture surface in real time and feeds it back to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds it back to the spraying module to adjust the spraying parameters in real time. The monitoring module includes an image acquisition component, a thickness monitoring component, a data analysis component, and a control component. The image acquisition component is used to acquire the color and coverage of the enamel layer already sprayed on the denture surface and feeds it back to the data analysis component. The thickness monitoring component is used to monitor the thickness of the enamel layer already sprayed on the denture surface and feeds it back to the data analysis component. The data analysis component integrates the characteristic information of the sprayed enamel layer received by the image acquisition component and the thickness monitoring component, performs data analysis, and calculates the proportion of enamel raw materials and / or spraying parameters to be adjusted. The control component feeds back the proportion of enamel raw materials to be adjusted to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds back the spraying parameters to be adjusted to the spraying module to adjust the spraying parameters in real time.

[0098] The characteristic information of the sprayed glaze layer includes the glaze layer thickness, glaze layer color, and glaze layer coverage; the spraying parameters include the distance between the piezoelectric atomizing nozzle and the denture surface, the vibration frequency of the piezoelectric atomizing nozzle, the atomization pressure of the piezoelectric atomizing nozzle, or the orifice diameter of the piezoelectric atomizing nozzle.

[0099] Tooling fixing module, used to fix the denture;

[0100] An electrostatic adsorption module, electrically connected to the tooling fixing module, is used to adsorb the glaze sprayed by the spraying module onto the surface of the denture.

[0101] The glaze recovery module is connected to the spraying module and is used to recover residual glaze and reuse it in the mixing module.

[0102] This embodiment provides a fully automatic enamel application method for dentures. The fully automatic enamel application method uses the fully automatic enamel application device described in this embodiment and includes the following steps:

[0103] Mixed glaze raw materials are mixed, and the resulting glaze is sprayed onto the surface of the denture after piezoelectric atomization. The characteristic information of the glaze layer sprayed on the denture surface is monitored in real time to synchronously adjust the spraying parameters and / or the proportion of the glaze raw materials to obtain a glazed denture.

[0104] When the thickness of the sprayed glaze layer is ≥30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:x, where 3≤x≤5;

[0105] When the thickness of the sprayed glaze layer is <30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:y, where 2≤y<3;

[0106] When the glaze coverage of the sprayed glaze layer is ≥90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 20-50mm.

[0107] When the glaze coverage of the sprayed glaze layer is less than 90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 10-20 mm.

[0108] When the thickness of the sprayed glaze layer is ≥30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 120~130kHz.

[0109] When the thickness of the sprayed glaze layer is <30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 140-150kHz.

[0110] When the thickness of the sprayed glaze layer is ≥30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.1~0.3mm;

[0111] When the thickness of the sprayed glaze layer is <30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.3-0.5mm, but not including 0.3mm.

[0112] Example 2

[0113] This embodiment provides a fully automatic denture enamel application device, which includes:

[0114] A glaze storage module for storing glaze raw materials; the glaze storage module includes: a glaze powder storage component for storing glaze powder; and a diluent storage component for storing diluent for the glaze powder.

[0115] The metering module is used to receive the characteristic information of the sprayed glaze layer fed back by the monitoring module and adjust the proportion of glaze raw materials output by the glaze storage module in real time; the metering module includes: a weight metering component for measuring the mass of glaze powder output by the glaze powder storage component; and a flow metering component for measuring the flow rate of diluent output by the diluent storage component.

[0116] A mixing module is used to mix the glaze raw materials output from the glaze storage module to obtain glaze. The mixing module includes a mixing component, a stirring component, a viscosity detection component, and a temperature monitoring component. The stirring component is disposed inside the mixing component. The viscosity detection component is signal-connected to the metering module to detect the viscosity of the glaze inside the mixing component and feeds it back to the metering module to synchronously adjust the proportion of glaze raw materials in real time. The temperature monitoring component is used to detect the temperature of the glaze inside the mixing component and adjust the internal temperature of the mixing component in real time.

[0117] The spraying module includes a piezoelectric atomizing nozzle, which receives feature information of the sprayed glaze layer from the monitoring module, adjusts the spraying parameters in real time, and sprays the glaze obtained by the mixing module onto the denture surface according to the spraying parameters; the spraying module also includes a movable support component for supporting the piezoelectric atomizing nozzle and moving the position of the piezoelectric atomizing nozzle.

[0118] The monitoring module monitors the characteristic information of the enamel layer already sprayed on the denture surface in real time and feeds it back to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds it back to the spraying module to adjust the spraying parameters in real time. The monitoring module includes an image acquisition component, a thickness monitoring component, a data analysis component, and a control component. The image acquisition component is used to acquire the color and coverage of the enamel layer already sprayed on the denture surface and feeds it back to the data analysis component. The thickness monitoring component is used to monitor the thickness of the enamel layer already sprayed on the denture surface and feeds it back to the data analysis component. The data analysis component integrates the characteristic information of the sprayed enamel layer received by the image acquisition component and the thickness monitoring component, performs data analysis, and calculates the proportion of enamel raw materials and / or spraying parameters to be adjusted. The control component feeds back the proportion of enamel raw materials to be adjusted to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds back the spraying parameters to be adjusted to the spraying module to adjust the spraying parameters in real time.

[0119] The characteristic information of the sprayed glaze layer includes the glaze layer thickness, glaze layer color, and glaze layer coverage; the spraying parameters include the distance between the piezoelectric atomizing nozzle and the denture surface, the vibration frequency of the piezoelectric atomizing nozzle, the atomization pressure of the piezoelectric atomizing nozzle, or the orifice diameter of the piezoelectric atomizing nozzle.

[0120] Tooling fixing module, used to fix the denture;

[0121] An electrostatic adsorption module, electrically connected to the tooling fixing module, is used to adsorb the glaze sprayed by the spraying module onto the surface of the denture.

[0122] This embodiment provides a fully automatic enamel application method for dentures. The fully automatic enamel application method uses the fully automatic enamel application device described in this embodiment and includes the following steps:

[0123] Mixed glaze raw materials are mixed, and the resulting glaze is sprayed onto the surface of the denture after piezoelectric atomization. The characteristic information of the glaze layer sprayed on the denture surface is monitored in real time to synchronously adjust the spraying parameters and / or the proportion of the glaze raw materials to obtain a glazed denture.

[0124] When the thickness of the sprayed glaze layer is ≥30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:x, where 3≤x≤5;

[0125] When the thickness of the sprayed glaze layer is <30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:y, where 2≤y<3;

[0126] When the glaze coverage of the sprayed glaze layer is ≥90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 20-50mm.

[0127] When the glaze coverage of the sprayed glaze layer is less than 90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 10-20 mm.

[0128] When the thickness of the sprayed glaze layer is ≥30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 120~130kHz.

[0129] When the thickness of the sprayed glaze layer is <30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 140-150kHz.

[0130] When the thickness of the sprayed glaze layer is ≥30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.1~0.3mm;

[0131] When the thickness of the sprayed glaze layer is <30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.3-0.5mm, but not including 0.3mm.

[0132] Example 3

[0133] This embodiment provides a fully automatic denture glazing device, which is the same as that in Embodiment 1 except that the thickness monitoring component is not provided.

[0134] This embodiment provides a fully automatic glazing method for dentures. Except for the use of the fully automatic glazing device described in this embodiment, the fully automatic glazing method for dentures is the same as that in Embodiment 1.

[0135] Since the fully automatic denture glazing device described in this embodiment does not have the thickness monitoring component, it is impossible to monitor the thickness of the sprayed glaze layer in real time. Relying solely on the characteristic information of glaze layer color and glaze layer coverage monitored by the image acquisition component cannot meet the requirements for efficient control of glaze layer thickness, resulting in relatively poor glaze layer light transmittance and glaze material utilization.

[0136] Example 4

[0137] This embodiment provides a fully automatic denture glazing device, which is the same as that in Embodiment 1 except that the image acquisition component is not provided.

[0138] This embodiment provides a fully automatic glazing method for dentures. Except for the use of the fully automatic glazing device described in this embodiment, the fully automatic glazing method for dentures is the same as that in Embodiment 1.

[0139] Because the fully automatic denture glazing device described in this embodiment does not have the image acquisition component, it is impossible to monitor the color and coverage of the glaze layer in real time. The thickness of the glaze layer monitored by the thickness monitoring component alone cannot meet the requirements for efficient control of the appearance color and curvature coverage of the glaze layer. Moreover, without the image acquisition component, it is also impossible to accurately adjust the spraying parameters required by the reagent, resulting in poor spraying effect and relatively poor uniformity and color consistency of the glaze layer.

[0140] Example 5

[0141] This embodiment provides a fully automatic denture glazing device, which is the same as that in Embodiment 1 except that the viscosity detection component is not provided.

[0142] This embodiment provides a fully automatic glazing method for dentures. Except for the use of the fully automatic glazing device provided in this embodiment, the fully automatic glazing method for dentures is the same as that in Embodiment 1.

[0143] Because the fully automatic denture glazing device described in this embodiment does not have a viscosity detection component, the viscosity of the glaze in the mixing component cannot be detected. Consequently, it cannot be fed back to the metering module for adjustment of the glaze raw material ratio. This causes the piezoelectric atomizing nozzle to become clogged due to excessive glaze viscosity. Alternatively, it may rely solely on the characteristic information of the already sprayed glaze layer monitored by the monitoring module to adjust the glaze raw material ratio and spraying parameters, resulting in the inability to achieve accurate quantitative delivery of the glaze. Furthermore, the spraying parameters cannot be dynamically and adaptively adjusted in a timely manner, leading to poor glazing effect and reduced glaze utilization.

[0144] II. Comparative Example

[0145] Comparative Example 1

[0146] This comparative example provides a fully automatic denture glazing device, which is identical to Example 1 except that it does not include the metering module.

[0147] This comparative example provides a fully automatic glazing method for dentures. Except for using the fully automatic glazing device provided in this comparative example, the fully automatic glazing method for dentures is the same as that in Example 1.

[0148] Since the denture glazing device provided in this comparative example does not have a metering module, it is impossible to adjust the proportion of glaze raw materials in real time. As a result, it can only be prepared in advance based on experience and used throughout the glazing process, which leads to poor glazing effect.

[0149] Comparative Example 2

[0150] This comparative example provides a fully automatic denture glazing device. Except for the absence of the monitoring module, the fully automatic denture glazing method is adjusted accordingly, i.e., the spraying parameters cannot be adjusted in real time. Otherwise, it is the same as Example 1.

[0151] This comparative example provides a fully automatic glazing method for dentures. Except for using the fully automatic glazing device provided in this comparative example, the fully automatic glazing method for dentures is the same as that in Example 1.

[0152] Because the fully automatic glazing device for dentures provided in this comparative example does not include the monitoring module, it is impossible to obtain the characteristic information of the sprayed glaze layer in a timely manner, thus making it impossible to adjust the spraying parameters and the ratio of glaze raw materials in real time, resulting in poor glaze quality.

[0153] Comparative Example 3

[0154] This comparative example provides a fully automatic glazing method for dentures. The fully automatic glazing method is a manual brushing method, which adopts a manual glazing process. The ratio of glaze powder to diluent is 10g:4.5mL, and the glaze layer thickness is 20μm.

[0155] The fully automated glazing method for dentures provided in this comparative example uses a manual brushing method, which results in brush marks on the glaze surface, poor glaze uniformity, and significant waste of glaze material.

[0156] III. Tests and Results

[0157] The quality of the glaze layer (glaze layer uniformity (expressed as deviation of glaze layer thickness), surface roughness, and light transmittance consistency after sintering) of the glazed dentures obtained by the fully automatic glazing device and glazing method provided in the above embodiments or comparative examples was tested. The operation time, glaze utilization rate and rework rate of a single denture were calculated. The results are shown in Table 1.

[0158] Table 1

[0159]

[0160] The test results show that:

[0161] (1) As can be seen from Examples 1 and 2, the present invention, by designing the metering module and the monitoring module, dynamically and adaptively cooperates with the spraying module to realize the real-time control of the proportion of glaze raw materials and spraying parameters during the glazing process, thereby improving the uniformity of the glaze layer of the obtained glazed denture, reducing the surface roughness to below 0.18μm, reducing the light transmittance consistency ΔL after sintering to below 0.98, increasing the glaze utilization rate to above 97%, reducing the rework rate to below 3%, improving the glazing efficiency, and shortening the single-tooth operation time to 0.75min, thus obtaining high-quality glazed dentures.

[0162] (2) As can be seen from Examples 1 and 3 to 5, the present invention further designs the thickness monitoring component, the image acquisition component and the viscosity detection component, which work together with the metering module to realize the real-time adjustment of the proportion of glaze raw materials and spraying parameters, realize the precise quantitative delivery of glaze and the dynamic correction of spraying parameters, and improve the surface quality of the glaze layer, glaze utilization rate and glazing efficiency of the glazed denture.

[0163] (3) As can be seen from Example 1 and Comparative Examples 1 to 3, since the metering module is not set in Comparative Example 1 and the monitoring module is not set in Comparative Example 2, it is impossible to adjust the spraying parameters and the proportion of glaze raw materials in real time as needed. This results in the inability to adjust the proportion of glaze raw materials in real time, the uniformity of the glaze layer and the consistency of light transmission after sintering are worse, and the utilization rate of glaze is reduced. In Comparative Example 3, due to the use of manual brushing, there are brush marks on the surface of the glaze layer, and the uniformity of the glaze layer is poor, resulting in serious waste of glaze.

[0164] In summary, the fully automatic glazing device for dentures described in this invention, through the design of the metering module, the monitoring module, and the spraying module working in synergy, obtains the characteristic information of the sprayed glaze layer by monitoring during the glazing process, and adjusts the proportion of glaze raw materials and the required spraying parameters in real time and accurately. This eliminates manual intervention, improves glaze quality, glaze utilization rate, and glazing efficiency, reduces processing costs, and meets the need for efficient restoration of dentures with different curvatures, sizes, and colors.

[0165] The applicant declares that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention fall within the protection and disclosure scope of the present invention.

Claims

1. A fully automatic enamel application device for dentures, characterized in that, The fully automatic denture enamel application device includes: Glaze storage module, used to store glaze raw materials; The metering module is used to receive the characteristic information of the sprayed glaze layer fed back by the monitoring module, and to adjust the proportion of glaze raw materials output by the glaze storage module in real time. A mixing module is used to mix the glaze raw materials output from the glaze storage module to obtain glaze; The spraying module receives feature information of the sprayed glaze layer from the monitoring module, adjusts the spraying parameters in real time, and sprays the glaze obtained by the mixing module onto the denture surface according to the spraying parameters. The monitoring module monitors the characteristic information of the enamel layer sprayed on the surface of the denture in real time and feeds it back to the metering module to adjust the proportion of enamel raw materials in real time, and / or feeds it back to the spraying module to adjust the spraying parameters in real time.

2. The fully automatic enamel application device for dentures according to claim 1, characterized in that, The glaze storage module includes: Glaze powder storage component, used to store glaze powder; Diluent storage component for storing diluent for glaze powder; Preferably, the metering module includes: A weight measuring component is used to measure the mass of the glaze powder output from the glaze powder storage component; A flow metering component is used to measure the flow rate of the diluent output from the diluent storage component.

3. The fully automatic enamel application device for dentures according to claim 1 or 2, characterized in that, The characteristic information of the sprayed glaze layer includes any one or a combination of at least two of the following: glaze layer thickness, glaze layer color, or glaze layer coverage. Preferably, the spraying module includes a piezoelectric atomizing nozzle; Preferably, the spraying parameters include the distance between the piezoelectric atomizing nozzle and the denture surface, the vibration frequency of the piezoelectric atomizing nozzle, the atomization pressure of the piezoelectric atomizing nozzle, or the orifice diameter of the piezoelectric atomizing nozzle.

4. The fully automatic enamel application device for dentures according to any one of claims 1 to 3, characterized in that, The mixing module includes a mixing component, a stirring component, a viscosity detection component, and a temperature monitoring component; Preferably, the stirring component is disposed inside the mixing component; Preferably, the viscosity detection component is signal-connected to the metering module to detect the viscosity of the glaze in the mixing component and feed it back to the metering module to synchronously adjust the proportion of glaze raw materials in real time; Preferably, the temperature monitoring component is used to detect the temperature of the glaze inside the mixing component and adjust the internal temperature of the mixing component in real time.

5. The fully automatic enamel application device for dentures according to any one of claims 1 to 4, characterized in that, The monitoring module includes an image acquisition component, a thickness monitoring component, a data analysis component, and a control component; Preferably, the image acquisition component is used to acquire the color of the enamel layer and / or the coverage of the enamel layer on the surface of the denture, and feed it back to the data analysis component; Preferably, the thickness monitoring component is used to monitor the thickness of the enamel layer sprayed on the surface of the denture and feed it back to the data analysis component; Preferably, the data analysis component integrates the feature information of the sprayed glaze layer received by the image acquisition component and the thickness monitoring component, performs data analysis, and calculates the required proportion of glaze raw materials and / or spraying parameters. Preferably, the control component feeds back the required proportion of glaze raw materials to the metering module to adjust the proportion of glaze raw materials in real time, and / or feeds back the required spraying parameters to the spraying module to adjust the spraying parameters in real time.

6. The fully automatic enamel application device for dentures according to any one of claims 1 to 5, characterized in that, The fully automatic denture glazing device also includes a tooling fixing module, an electrostatic adsorption module, and a glaze recovery module. Preferably, the tooling fixing module is used to fix the denture; Preferably, the electrostatic adsorption module is electrically connected to the tooling fixing module and is used to adsorb the glaze sprayed by the spraying module onto the surface of the denture. Preferably, the glaze recovery module is connected to the spraying module and is used to recover residual glaze and reuse it in the mixing module.

7. A fully automated enamel application method for dentures, characterized in that, The fully automatic denture glazing method is performed using the fully automatic denture glazing device described in any one of claims 1 to 6.

8. The fully automatic enamel application method for dentures according to claim 7, characterized in that, The fully automatic enamel application method for dentures includes the following steps: The mixed glaze raw materials are then sprayed onto the surface of the denture after being piezoelectrically atomized. The characteristic information of the glaze layer sprayed on the denture surface is monitored in real time to synchronously adjust the spraying parameters and / or the proportion of the glaze raw materials in real time, so as to obtain a glazed denture.

9. The fully automated enamel application method for dentures according to claim 8, characterized in that, When the thickness of the sprayed glaze layer is ≥30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:x, where 3≤x≤5; Preferably, when the thickness of the sprayed glaze layer is <30μm, the ratio of glaze powder to diluent in the glaze raw material is automatically adjusted to 1:y, where 2≤y<3.

10. The fully automated enamel application method for dentures according to claim 8 or 9, characterized in that, When the glaze coverage of the sprayed glaze layer is ≥90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 20-50mm. Preferably, when the glaze coverage of the sprayed glaze layer is <90%, the distance between the piezoelectric atomizing nozzle and the denture surface is automatically adjusted to 10-20 mm; Preferably, when the thickness of the sprayed glaze layer is ≥30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 120~130kHz; Preferably, when the thickness of the sprayed glaze layer is <30μm, the vibration frequency of the piezoelectric atomizing nozzle is automatically adjusted to 140-150kHz. Preferably, when the thickness of the sprayed glaze layer is ≥30μm, the orifice diameter of the piezoelectric atomizing nozzle is automatically adjusted to 0.1~0.3mm; Preferably, when the thickness of the sprayed glaze layer is <30μm, the aperture of the piezoelectric atomizing nozzle is automatically adjusted to 0.3-0.5mm, but not including 0.3mm.

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