A segmented temperature-controlled automated porcelain control system, apparatus and method
Patent Information
- Application Number
- CN202211366879.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-01
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2042-11-01
Smart Images
Figure CN115686112B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of denture porcelain baking, and particularly relates to a segmented temperature control automatic porcelain baking control system, device and method. BACKGROUND
[0002] In the field of dental materials, the commonly used material is glass ceramic, which is superior to other materials in form, color and stability. For glass ceramic dentures, porcelain baking is still needed. The segmented temperature control porcelain baking method is commonly used on the market, but the existing porcelain baking furnace is not accurate in heating speed and temperature control, so that the number of segments is small, and the finished product after porcelain baking has many problems, affecting the quality of the finished product. The porcelain baking furnace on the market adopts an integrated circuit board, which is difficult to repair and maintain when a fault occurs. SUMMARY
[0003] To solve the above problems, the application provides a segmented temperature control automatic porcelain baking control system, device and method. The control system, device and method adopt three control units to undertake corresponding control programs respectively, and realize data sharing through communication protocols between the three, so as to ensure more accurate segmented temperature control, wide application range and meet the use needs of porcelain powder, external dye paste and glass ceramic materials.
[0004] To achieve the above application purposes, the technical scheme adopted by the application is as follows: a segmented temperature control automatic porcelain baking control system, comprising a core control module, an acquisition and adjustment module and a pressure and temperature control module, wherein the core control module, the acquisition and adjustment module and the pressure and temperature control module are independently arranged, and the core control module and the acquisition and adjustment module and the core control module and the pressure and temperature control module are respectively connected through communication protocols.
[0005] The core control module is used to transmit control programs to the acquisition and adjustment module and the pressure and temperature control module respectively.
[0006] The acquisition and adjustment module is used to acquire temperature and pressure values in the furnace and feed back to the core control module in real time. The acquisition and adjustment module receives programs transmitted from the core control module and automatically adjusts heating or stops heating according to a time axis.
[0007] The pressure and temperature control module receives programs transmitted from the core control module and automatically pressurizes or stops pressurizing according to a time axis. The pressure and temperature control module automatically cools the furnace according to a time axis.
[0008] Preferably, the acquisition and adjustment module comprises a PID adjustment module and an AI acquisition module; the PID adjustment module is connected with the furnace temperature detection element, the PID adjustment module is connected with the heating element, and the AI acquisition module is connected with the furnace vacuum pressure detection element; the acquisition and adjustment module is connected with the core control module through a communication interface.
[0009] Preferably, a PWM module and a first logic control module are connected between the PID adjustment module and the heating element.
[0010] Preferably, a protection module is connected to the heating element, and the protection module is used to detect the temperature of the heating element and cut off the heating element with excessively high temperature.
[0011] Preferably, the pressure and temperature control module comprises an IO controller, the IO controller is connected with the lifting motor and the vacuum motor respectively, and the IO controller is used to control the start / stop of the lifting motor and the vacuum motor.
[0012] Preferably, a second logic control module is connected between the IO controller and the vacuum motor, and a third logic control module is connected between the IO controller and the lifting motor.
[0013] Preferably, the IO controller is connected with an alarm module, and the IO controller controls the alarm module to alarm when the pressure exceeds the set value.
[0014] A segmented temperature control automatic porcelain baking equipment comprises any one of the segmented temperature control automatic porcelain baking control systems described above, the core control module, the acquisition and adjustment module, and the pressure and temperature control module are independently formed into blocks and can be detachably installed inside the automatic porcelain baking equipment; an operation input module and a display are arranged on the automatic porcelain baking equipment, the operation input module and the display are connected with the core control module, and the operation input module is used to transmit a control program to the core control module.
[0015] A segmented temperature control automatic porcelain baking method adopts any one of the segmented temperature control automatic porcelain baking control systems described above and comprises the following steps.
[0016] S1: a segmented temperature control program is input to the core control module through an operation input module, the core control module transmits the segmented temperature control program to the acquisition and adjustment module and the pressure and temperature control module according to a communication protocol, and the acquisition and adjustment module and the pressure and temperature control module are automatically parsed into corresponding instructions;
[0017] S2: the PID adjustment module in the acquisition and adjustment module controls the on / off of the heating element according to the defined segmented temperature control program and the time requirement, automatically performs the heating and stopping heating operations, and in the process, the PID adjustment module transmits the temperature value and the pressure value in the furnace to the core control module in real time.
[0018] S3: When the porcelain temperature rises to the specified temperature T1, the pressure control and temperature control module controls the continuous pressurization of the hearth; and when the porcelain temperature rises to the specified temperature T2, the pressure control and temperature control module cools and depressurizes the hearth to room temperature.
[0019] Preferably, in the process of heating controlled by the collection and adjustment module, the temperature rising rate is 60-100 DEG C / min; in the process of cooling the hearth by the pressure control and temperature control module, the cooling rate is 55-80 DEG C / min.
[0020] In step S3, when the porcelain temperature rises to the specified temperature T2, the collection and adjustment module stops heating, and when the temperature in the hearth reaches T3, the pressure control and temperature control module controls the opening of the hearth, so that the temperature decreases from T3 to room temperature; the specific method of opening the hearth is that the pressure control and temperature control module controls the step-by-step opening of the hearth, and after each opening of a certain distance, it stops for a certain period of time until the hearth is completely opened.
[0021] The present application has the following beneficial effects:
[0022] 1) The present application adopts three control units, i.e., a core control module, a collection and adjustment module and a pressure control and temperature control module, to undertake corresponding control programs respectively, and realizes data sharing among the three through a communication protocol, so as to ensure more accurate step-by-step temperature control, and through calculation and processing, different processing units are distributed, temperature detection is connected with a PID adjustment module to realize accurate closed-loop control of temperature, vacuum detection is connected with an AI collection module to realize accurate collection of vacuum value, and through internal operation, data is sent to the core control module for real-time data transmission; and the core control module, the collection and adjustment module and the pressure control and temperature control module in the present application are separately and independently installed in the equipment in blocks, which can be quickly disassembled and assembled, and is convenient for later maintenance.
[0023] 2) The collection and adjustment module in the present application adopts a PID adjustment module, which contains an advanced control algorithm of PID, NPID adjustment and parameter self-tuning function, has a measurement sampling rate of 12.5 times per second, and a minimum control period of 0.24 seconds, can adapt to the control precision of fast-changing objects, and realizes no overshoot and no under-control control of complex long-lag objects.
[0024] 3) The logic control module in the present application has the advantages of fast switching speed, high working frequency, small size, long service life, no mechanical noise, reliable work, impact resistance, corrosion resistance, moisture resistance and shock resistance, etc., the input control end and the output end thereof are isolated by an optoelectronic coupling device, the electrical connection between the input and the output is cut off, the influence of the output load circuit on the host system is avoided, zero potential opening and closing circuits are adopted, and the radio frequency interference of the power grid is effectively controlled.
[0025] 4) the temperature rising speed in the present application can be adjusted at will according to requirements, the temperature rising curve can be set according to requirements, the formula is pre-stored with multiple items, can be modified and adjusted at will, different materials can be sintered, the key temperature points in the sintering process can be precisely controlled, the material sintering quality is guaranteed, the automation degree is high, the operation is simple, the use efficiency is high, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is a structure schematic view of the segmented temperature control automatic porcelain baking control system.
[0027] Figure 2 It is a structure schematic view of the segmented temperature control automatic porcelain baking equipment.
[0028] Figure 3 It is a temperature control diagram of the segmented temperature control automatic porcelain baking process. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. If not specifically indicated, the technical means used in the embodiments are conventional means familiar to those skilled in the art.
[0030] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0031] As shown in Figure 1 A segmented temperature control automatic porcelain baking control system, comprising a core control module, a collection and adjustment module and a pressure and temperature control module, the core control module, the collection and adjustment module and the pressure and temperature control module are independently arranged, the core control module and the collection and adjustment module, the core control module and the pressure and temperature control module are respectively connected by communication protocol communication, that is, the data among the three can be shared, and the temperature and pressure can be adjusted according to the data, and whether the furnace is opened or not.
[0032] The core control module is a core controller 2, which is used for transmitting control programs to the collection and adjustment module and the pressurization and temperature control module respectively. The control programs can be directly input through an input module. The input module can adopt a programmable controller, and multiple control programs can be input simultaneously and stored in a memory 7. During porcelain baking, the programs can be called according to different materials. The called programs can be further fine-tuned and executed. An operator can directly see the program running and running curve on a display 1. The display 1 and the memory 7 are connected with the core control module 2.
[0033] The core controller 2 adopts a new generation of Cortex-A8 high-speed processor, is matched with a high-brightness, high-contrast high-color display screen (the display 1), 512 MB RAM, 256 MB ROM, supports FTP, E-mail, VNC remote monitoring, NTP network time setting and other various practical network functions, has comprehensive functions, sensitive touch, high reliability, good durability and more than 10,000,000 times of pressing times.
[0034] The collection and adjustment module is used for collecting temperature values and pressure values in a furnace and feeding back to the core control module 2 in real time. The collection and adjustment module receives programs transmitted from the core control module, automatically adjusts heating and temperature rise or stops heating according to a time axis. After the core control module 2 transmits programs to the collection and adjustment module, the collection and adjustment module rises temperature according to program requirements and heats to a specified temperature within a specified time. The collection and adjustment module can adjust the heating rate during the temperature rise process according to time requirements. The collection and adjustment module can heat or stop heating according to the segmented requirements of the program setting, so as to complete the process requirements. The collection and adjustment module can not only heat and rise temperature according to the program design, but also transmit real-time temperature values and pressure values in the furnace to the core controller 2, so that the core controller 2 can quickly master the temperature in the furnace at this time and display the temperature on the display 1.
[0035] The pressurization and temperature control module receives programs transmitted from the core control module, automatically pressurizes or stops pressurizing according to a time axis. The pressurization and temperature control module automatically cools down the furnace according to a time axis. After the furnace is heated to a certain temperature, the pressurization and temperature control module pressurizes or depressurizes the furnace according to program requirements, so as to meet the process requirements.
[0036] The collection and adjustment module comprises a PID adjustment module 10 and an AI collection module 11, the PID adjustment module 10 is connected with the furnace temperature detection element 9, and the temperature in the furnace is controlled in a closed loop, the PID adjustment module 10 is connected with the heating element 18, so as to control the work of the heating element 18, and the AI collection module 11 is connected with the furnace vacuum pressure detection element 12; the collection and adjustment module is connected with the core controller 2 through the communication interface 8. The furnace temperature detection element 9 is connected with the PID adjustment module 10 to realize precise closed-loop control of temperature, the vacuum pressure detection element 12 is connected with the AI collection module 11 to realize precise collection of the vacuum value, and the vacuum value is sent to the core controller 2 through internal operation, and real-time data transmission is carried out.
[0037] The PID adjustment module 10 and the heating element 18 are connected with a PWM module 16 and a first logic control module 15. The PWM module 16 can control the on-off frequency according to program instructions, so that the heating element 18 is in a heating or non-heating state.
[0038] The protection module 17 is connected to the heating element, and the protection module 17 is used for detecting the temperature of the heating element 18 and cutting off the heating element 18 with too high temperature. When the load of the heating element 18 is too large, the work of the heating element 18 is forcibly protected.
[0039] The pressure control and temperature control module comprises an IO controller 4, the IO controller 4 is connected with the lifting motor 6 and the vacuum motor 14 respectively, and the IO controller 4 is used for controlling the start / stop of the lifting motor 6 and the vacuum motor 14. The input of the IO controller 4 is a detection signal, including the limit of the lifting motor 6 rising and falling, a button signal, a vacuum pressure detection signal and the like, the output signal of the IO controller 4 includes control of the lifting motor 6 rising and falling, start of the vacuum pump and control of the audible and light alarm lamp and the like, and the rising and falling of the lifting motor 6 drives the opening and closing of the furnace.
[0040] The second logic control module is connected between the IO controller and the vacuum motor, and the third logic control module is connected between the IO controller and the lifting motor. The IO controller is connected with the alarm module, and the IO controller controls the alarm module to alarm when the pressure exceeds the set value.
[0041] The application also provides a segmented temperature control automatic porcelain baking equipment, which comprises a furnace body, a lifting mechanism, a vacuum pump and a heating element. Figure 2As shown, the segmented temperature control automatic porcelain baking control system includes the above-mentioned core control module, the acquisition and adjustment module and the pressure and temperature control module, which are independently formed into blocks and detachably installed in the automatic porcelain baking equipment, so that the equipment can be easily disassembled for later maintenance.
[0042] The application further provides a segmented temperature control automatic porcelain baking method, which adopts the segmented temperature control automatic porcelain baking control system and the segmented temperature control automatic porcelain baking equipment and includes the following steps.
[0043] S1: The segmented temperature control program is input through the operation input module and transmitted to the core control module, and the core control module transmits the segmented temperature control program to the acquisition and adjustment module and the pressure and temperature control module according to a communication protocol; the acquisition and adjustment module and the pressure and temperature control module are automatically parsed into corresponding instructions.
[0044] S2: The PID adjustment module in the acquisition and adjustment module controls the on-off of the heating element according to the defined segmented temperature control program and the time requirement, automatically performs the heating and stopping heating operations, and in the process, the PID adjustment module transmits the temperature value and the pressure value in the furnace to the core control module in real time.
[0045] S3: When the porcelain baking temperature rises to a specified temperature T1, the pressure and temperature control module controls the continuous pressurization of the furnace; and when the porcelain baking temperature rises to a specified temperature T2, the pressure and temperature control module cools and depressurizes the furnace to room temperature.
[0046] In the process of controlling the heating of the acquisition and adjustment module, the temperature rising rate is 60-100℃ / min, and the temperature rising rate block can ensure the quality of the finished product after porcelain baking; in the process of cooling the furnace by the pressure and temperature control module, the cooling rate is 55-80℃ / min.
[0047] In step S3, when the porcelain baking temperature rises to the specified temperature T2, the acquisition and adjustment module stops heating, and when the temperature in the furnace reaches T3, the pressure and temperature control module controls the furnace to be opened, so that the temperature decreases from T3 to room temperature; the specific method of opening the furnace is that the pressure and temperature control module controls the furnace to be opened in sections, and after each opening distance, it is stopped for a certain period of time until the furnace is completely opened.
[0048] The application provides a process flow for porcelain baking of glass ceramics as a reference, which is combined with the segmented temperature control automatic porcelain baking equipment. Figure 3 ,Figure 3 The horizontal coordinate is time (unit: min), the horizontal coordinate is the time axis, and the vertical coordinate is temperature (unit: ℃). The specific process flow is as follows:
[0049] S1: From room temperature 20.0℃ to 100℃, normal pressure;
[0050] S2: From 100℃ to 250℃, the temperature rising time is 1min, normal pressure;
[0051] S3: Keep at 250℃ for 2min, normal pressure;
[0052] S4: From 250℃ to 450℃, the temperature rising time is 2min, normal pressure;
[0053] S5: Keep at 450℃ for 1.5min, normal pressure;
[0054] S6: From 450℃ to 820℃, the temperature rising time is 6min, and the vacuum starts at 550℃;
[0055] S7: Keep at 820℃ for 24min, the vacuum ends after the vacuum value reaches 100%;
[0056] S8: Stop heating, and when the temperature in the furnace drops to 700℃, the furnace is opened; and after the opening distance of the furnace is 2mm, keep for 2min, and after the opening distance of the furnace is 5mm, keep for 3min, until the furnace is completely opened; during this process, the temperature in the furnace drops from 820℃ to 350℃, the cooling time is 6min, normal pressure;
[0057] S9: From 350℃ to room temperature, the cooling time is 10min, normal pressure.
[0058] The above-described embodiments are only to describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications, variations, modifications and replacements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.
Claims
1. A segmented temperature-controlled automated porcelain control system, characterized by: The core control module, the collection and adjustment module and the pressure and temperature control module are independently arranged, and are connected by communication protocol; The core control module is used for transmitting control programs to the collection and adjustment module and the pressure and temperature control module; The collection and adjustment module is used for collecting the temperature and pressure values in the furnace and feeding back to the core control module in real time; the collection and adjustment module receives the programs transmitted from the core control module and automatically adjusts the heating and temperature rise or stops the heating according to the time axis; The pressure and temperature control module receives the programs transmitted from the core control module and automatically pressurizes or stops the pressurization according to the time axis; the pressure and temperature control module automatically cools the furnace according to the time axis. The collection and adjustment module comprises a PID adjustment module and an AI collection module; the PID adjustment module is connected with a PWM module and a first logic control module.
2. The segmented temperature-controlled automated porcelain control system of claim 1, wherein: The PID adjustment module is connected with a furnace temperature detection element, the PID adjustment module is connected with a heating element, and the AI collection module is connected with a furnace vacuum pressure detection element; the collection and adjustment module is connected with the core control module through a communication interface.
3. The segmented temperature-controlled automated porcelain control system of claim 1, wherein: A protection module is connected to the heating element; the protection module is used for detecting the temperature of the heating element and cutting off the heating element with excessively high temperature.
4. The segmented temperature-controlled automated porcelain control system of claim 1, wherein: The pressure and temperature control module comprises an IO controller; the IO controller is connected with a lifting motor and a vacuum motor; the IO controller is used for controlling the start / stop of the lifting motor and the vacuum motor.
5. The segmented temperature-controlled automated porcelain control system of claim 4, wherein: A second logic control module is connected between the IO controller and the vacuum motor, and a third logic control module is connected between the IO controller and the lifting motor.
6. The segmented temperature-controlled automated porcelain control system of claim 5, wherein: The IO controller is connected with an alarm module; the IO controller controls the alarm module to alarm when the pressure exceeds the set value.
7. A segmented temperature-controlled automated porcelain baking apparatus comprising the segmented temperature-controlled automated porcelain baking control system of any one of claims 1-6, characterized in that: The core control module, the collection and adjustment module and the pressure and temperature control module are independently arranged and can be detachably installed in the automatic porcelain baking equipment; an operation input module and a display are arranged on the automatic porcelain baking equipment; the operation input module and the display are connected with the core control module; the operation input module is used for transmitting control programs to the core control module.
8. A segmented temperature control automated porcelain baking method, using the segmented temperature control automated porcelain baking control system of any one of claims 1-6, characterized in that, The method comprises the following steps: S1: a segmented temperature control program is input to the core control module through the operation input module; the core control module transmits the segmented temperature control program to the collection and adjustment module and the pressure and temperature control module according to the communication protocol; the collection and adjustment module and the pressure and temperature control module automatically analyze the segmented temperature control program into corresponding instructions; S2: the PID adjustment module in the collection and adjustment module controls the on / off of the heating element according to the defined segmented temperature control program and the time requirement, automatically executes the heating and stopping of the heating, and in the process, the PID adjustment module transmits the temperature and pressure values in the furnace to the core control module in real time; S3: when the porcelain baking temperature rises to a specified temperature T1, the pressure and temperature control module controls the continuous pressurization of the furnace; and when the porcelain baking temperature rises to a specified temperature T2, the pressure and temperature control module cools and depressurizes the furnace to room temperature. In the process of controlling heating by the collection adjustment module, the temperature rising rate is 60-100℃ / min; in the process of controlling temperature reduction of the hearth by the pressure control temperature module, the temperature reduction rate is 55-80℃ / min; In step S3, after the porcelain baking temperature rises to the specified temperature T2, the collection adjustment module stops heating, and after the temperature in the hearth reaches T3, the pressure control temperature module controls the hearth to open, so that the temperature decreases from T3 to room temperature; the specific method of opening the hearth is that the pressure control temperature module controls the hearth to open in sections, and after each opening of a certain distance, a certain time is kept, until the hearth is completely opened.