Remote control closing device for kiln door after 400 DEG C in drainage period of electric kiln

By automatically closing the kiln door through a remote control system, the safety hazards and inaccurate timing issues caused by manual operation are resolved, realizing intelligent management of the kiln door and improving the firing quality and production efficiency of ceramic products.

CN224121747UActive Publication Date: 2026-04-14HANGZHOU YUWAN CULTURE & ART CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU YUWAN CULTURE & ART CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

During the drainage period of electric kilns for ceramic products, manual control of the kiln door poses safety hazards and makes it difficult to accurately control the closing time of the kiln door, affecting product quality and energy consumption.

Method used

A remote control system is adopted, which uses temperature sensors to detect the temperature inside the kiln in real time. The kiln door is automatically closed by hydraulic cylinders and a synchronous control system. Combined with limit sensors and terminal monitoring, intelligent management of the kiln door is achieved.

Benefits of technology

It improves the safety and accuracy of kiln door closure, reduces the risk of personal injury, improves product quality and production efficiency, and adapts to the trend of intelligent development in modern industry.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a remote control closing device for a kiln door after 400 DEG C in the drainage period of an electric kiln, which comprises a base and a top plate, four bearing blocks are slidably connected between opposite side walls in the base and the top plate, a folding frame is rotatably connected among the four bearing blocks jointly, hydraulic cylinders are fixed on two sides of the base, and the hydraulic cylinders are connected with the top plate through a hinge. Piston rods of the two hydraulic cylinders are connected with one bearing block on the same side, and one side of the base is connected with a signal receiver. According to the utility model, manual operation of the kiln door in a high-temperature environment is avoided, the risk of safety accidents such as burning of workers is greatly reduced, the personal safety of the operators is guaranteed, the time and labor cost are saved, the production efficiency is improved, and meanwhile, the synchronous control system ensures the stability and consistency of closing of the kiln door, so that the production efficiency is improved. Equipment faults and maintenance time caused by improper operation are reduced, production scheduling and management are conveniently and rapidly carried out, and the system adapts to the trend of modern industrial intelligent development.
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Description

Technical Field

[0001] This utility model relates to the field of remote control closing technology for kiln doors, and in particular to a remote control closing device for kiln doors after the electric kiln reaches 400°C during the drainage period. Background Technology

[0002] In the electric kiln firing process of ceramics and other products, the process control during the drainage period is crucial. The drainage period refers to the initial stage of firing, during which moisture is removed from the products. If moisture in the kiln cannot be removed in time during this period, it will cause a series of problems during subsequent high-temperature firing, such as cracking and deformation of the products, seriously affecting product quality. Therefore, opening the kiln door at a certain angle during the drainage period to allow moisture to drain smoothly is a standard practice in the industry.

[0003] Traditional kiln door operation relies primarily on manual control. In high-temperature environments, manual operation faces numerous difficulties and risks. Firstly, the temperature around the electric kiln is extremely high, making workers highly susceptible to burns and other injuries, posing significant safety hazards. Secondly, precise timing is difficult with manual operation. The optimal time to close the kiln door is when the kiln temperature reaches 400℃; closing it too early or too late will negatively impact the firing results. For example, closing the kiln door too early results in insufficient moisture drainage, leading to internal defects in the products; closing it too late causes excessive heat loss, increasing energy consumption and potentially affecting the firing process and quality of the products. Therefore, we propose a remote control device for closing the kiln door after the electric kiln reaches 400℃ during the drainage period to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a remote control closing device for the kiln door after the electric kiln reaches 400°C during the drainage period.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A remote control closing device for the kiln door after the drainage period of an electric kiln reaches 400℃ includes a base and a top plate. Four bearing blocks are slidably connected between the opposite side walls of the base and the top plate. A folding frame is rotatably connected between the four bearing blocks. Hydraulic cylinders are fixed on both sides of the base. The piston rods of two hydraulic cylinders are connected to a bearing block on the same side. A signal receiver is connected to one side of the base. A U-shaped bearing frame is fixed to the upper end of the top plate. The kiln door body is detachably installed on the U-shaped bearing frame. The kiln door body is composed of a ceramic layer, a metal base layer, and a reinforcing plate from the inside out. A limit sensor is installed on one side of the upper end of the kiln door body.

[0007] Preferably, a sliding groove is provided between the opposite sidewalls of the base and the top plate, and a slider is installed on both sides of a sliding groove on the same side, with the upper end of a slider on the same side fixed to the lower end of a bearing block on the same side.

[0008] Preferably, the piston rod of the hydraulic cylinder passes through the side wall of the base and extends into the slide groove, and the piston rod of the hydraulic cylinder is fixed to one end of a slider on the same side.

[0009] Preferably, the U-shaped support frame is provided with multiple limiting holes at equal intervals on both sides, and two limiting holes on the same side form a group. A stud is provided through the two limiting holes in the same group. The stud passes through the furnace door body, and a rotating block is fixed at one end of the stud.

[0010] Preferably, the folding frame consists of three X-shaped folding rods, which are rotatably connected to each other.

[0011] Preferably, a nano-coating is sprayed onto the circumferential sidewall of the furnace door body.

[0012] In this utility model:

[0013] 1. Temperature detection stage: The temperature detection module is the front-end sensing component of the entire device. It can detect the temperature inside the electric kiln in real time and accurately. This module usually uses high-precision temperature sensors. These sensors are installed in key positions inside the kiln to ensure that the actual temperature inside the kiln can be accurately obtained. The temperature sensor converts and processes the detected temperature signal and then transmits it to the remote control module.

[0014] 2. Signal Judgment Stage: The remote control module receives the temperature signal from the temperature detection module and performs real-time analysis and judgment. Through preset programs and algorithms, the remote control module compares the received temperature with the set 400℃ threshold. If the kiln temperature does not reach 400℃, the system will continue to maintain the temperature detection state and continuously monitor the temperature change inside the kiln. If the temperature reaches 400℃, the remote control module will respond quickly and proceed to the next step.

[0015] 3. Control signal transmission stage: When the remote control module determines that the temperature inside the kiln has reached 400℃, it will immediately send a control signal to the signal receiver. After receiving the signal, the signal receiver will start the hydraulic cylinder. In order to ensure the smoothness and synchronicity of the furnace door closing, the two hydraulic cylinders adopt a synchronous control system to operate simultaneously. The piston rod of the hydraulic cylinder pushes the slider to move in the slide groove. The movement of the slider drives the bearing block to move, thereby unfolding the folding frame. As the folding frame unfolds, the furnace door body gradually moves upward, and finally the furnace door is closed.

[0016] 4. Feedback and Monitoring Stage: During the kiln door closing process, the limit sensor and the sensing block on one side of the furnace body play an important role. The limit sensor can detect the position of the kiln door in real time and feed back the position signal to the remote control module. The remote control module determines whether the kiln door is completely closed based on the received position signal. At the same time, the operator can remotely monitor the closing status of the kiln door and the temperature inside the kiln through terminal devices (computers, mobile phones, etc.). The terminal devices and the remote control module are connected through the network to realize real-time data transmission and interaction, which makes it convenient for the operator to keep track of the kiln's operation at any time.

[0017] This utility model has the following advantages:

[0018] 1. It avoids the need for manual operation of the kiln door in a high-temperature environment, greatly reducing the risk of workers being burned and other safety accidents, and ensuring the personal safety of operators;

[0019] 2. By precisely controlling the kiln door closing time, the kiln door is closed in time when the temperature inside the kiln reaches 400℃, which effectively avoids problems such as insufficient moisture discharge or excessive heat loss caused by inaccurate manual operation, thereby improving the firing quality of ceramic products and reducing the defect rate.

[0020] 3. Remote control makes kiln door operation more convenient and efficient, eliminating the need for on-site manual operation, saving time and labor costs, and improving production efficiency. At the same time, the synchronous control system ensures the smoothness and consistency of furnace door closing, reducing equipment failures and maintenance time caused by improper operation.

[0021] 4. It combines multiple functions such as temperature detection, remote control, and feedback monitoring, realizing intelligent management of kiln door closure during the drainage period of electric kilns. Operators can remotely monitor and control the kiln's operating status through terminal equipment, making production scheduling and management convenient and quick, and adapting to the trend of intelligent development in modern industry.

[0022] In summary, this utility model avoids manual operation of the kiln door in a high-temperature environment, greatly reducing the risk of safety accidents such as burns to workers, ensuring the personal safety of operators, saving time and labor costs, and improving production efficiency. At the same time, the synchronous control system ensures the smoothness and consistency of the furnace door closing, reduces equipment failures and maintenance time caused by improper operation, and facilitates production scheduling and management, adapting to the trend of intelligent development in modern industry. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the U-shaped load-bearing frame of this utility model;

[0025] Figure 3 This is a structural diagram of the furnace door body of this utility model;

[0026] Figure 4 This is a structural diagram of the connection between the hydraulic cylinder and the slider of this utility model.

[0027] In the diagram: 1. Stud, 2. Limiting hole, 3. U-shaped support frame, 4. Folding frame, 5. Support block, 6. Hydraulic cylinder, 7. Signal receiver, 8. Base, 9. Slide groove, 10. Slider, 11. Top plate, 12. Rotating block, 13. Ceramic layer, 14. Metal base layer, 15. Reinforcing plate, 16. Furnace door body, 17. Limiting sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-4 A remote control closing device for the kiln door after the electric kiln drains at 400℃ includes a base 8 and a top plate 11. The base 8 and the top plate 11 are made of high-strength, high-temperature resistant stainless steel, which has good mechanical properties and high-temperature resistance, and can be used stably for a long time in the high-temperature environment around the electric kiln, ensuring the overall structural stability of the device.

[0030] Four bearing blocks 5 are slidably connected between the opposite side walls of the base 8 and the top plate 11. A folding frame 4 is rotatably connected between the four bearing blocks 5. The folding frame 4 consists of three X-shaped folding rods, which are rotatably connected to each other. The design of the X-shaped folding rods has good extensibility and stability. During the opening and closing of the furnace door, the force can be evenly distributed to avoid excessive local force that could damage the device. At the same time, the way the three X-shaped folding rods are rotatably connected to each other makes the folding frame 4 smoother in the unfolding and retraction process, and can accurately realize the lifting and lowering action of the furnace door.

[0031] Hydraulic cylinders 6 are fixed on both sides of the base 8. The piston rods of the two hydraulic cylinders 6 are connected to a bearing block 5 on the same side. The hydraulic cylinders 6 adopt a high-precision hydraulic system, which can accurately control the extension and retraction length and speed of the piston rod. The hydraulic oil is a special hydraulic oil that is resistant to high temperature and oxidation to adapt to the high temperature environment around the electric kiln. In order to ensure the smoothness and synchronicity of the furnace door closing, the two hydraulic cylinders adopt a synchronous control system to operate simultaneously. The synchronous control system can monitor the working status of the two hydraulic cylinders in real time to ensure that their piston rod extension and retraction speed and displacement are consistent.

[0032] A signal receiver 7 is connected to one side of the base 8, and a U-shaped support frame 3 is fixed to the upper end of the top plate 11. The furnace door body 16 is detachably installed on the U-shaped support frame 3. The furnace door body 16 is composed of a ceramic layer 13, a metal base layer 14 and a reinforcing plate 15 from the inside to the outside. A limit sensor 17 is installed on one side of the upper end of the furnace door body 16. The detachable installation method facilitates the replacement and maintenance of the furnace door body 16. When the furnace door body 16 is damaged or needs to be cleaned, the operator only needs to rotate the rotating block 12 and unscrew the stud 1 to remove the furnace door body 16 from the U-shaped support frame 3. At the same time, the design of multiple limit holes 2 can adjust the installation position of the furnace door body 16 according to different needs, improving the applicability of the device.

[0033] Slide grooves 9 are provided between the opposite side walls of the base 8 and the top plate 11. Slide blocks 10 are installed on both sides of one slide groove 9 on the same side. The upper end of one slide block 10 on the same side is fixed to the lower end of a bearing block 5 on the same side.

[0034] The piston rod of the hydraulic cylinder 6 passes through the side wall of the base 8 and extends into the slide groove 9. The piston rod of the hydraulic cylinder 6 is fixed to one end of a slider 10 on the same side. Multiple limiting holes 2 are provided at equal intervals on both sides of the U-shaped bearing frame 3. Two limiting holes 2 on the same side form a group. A stud 1 passes through the two limiting holes 2 in the same group. The stud 1 passes through the furnace door body 16. A rotating block 12 is fixed to one end of the stud 1.

[0035] The furnace door body 16 is coated with a nano-coating on its surrounding sidewalls. The ceramic layer 13 has good heat insulation properties, which can effectively reduce heat loss in the kiln and improve energy utilization efficiency. The metal base layer 14 provides basic structural strength for the furnace door body 16. The reinforcing plate 15 further enhances the overall rigidity of the furnace door body 16 and prevents the furnace door from deforming during long-term use. The nano-coating has wear-resistant, corrosion-resistant and waterproof properties, which can extend the service life of the furnace door body 16 and also facilitate cleaning.

[0036] In this utility model:

[0037] 1. Temperature Detection Stage: The temperature detection module is the front-end sensing component of the entire device. It can detect the temperature inside the electric kiln in real time and accurately. This module typically uses high-precision temperature sensors, which are installed in key locations inside the kiln to ensure accurate acquisition of the actual temperature inside the kiln. The temperature sensors convert and process the detected temperature signals and then transmit them to the remote control module. This module typically uses high-precision temperature sensors, such as thermocouple sensors. These sensors are installed in key locations inside the kiln, such as the kiln walls and roof, to ensure accurate acquisition of the actual temperature inside the kiln. To improve the accuracy and reliability of temperature detection, the temperature sensors adopt a redundant design, that is, multiple sensors are installed to measure the temperature, and the measurement results are comprehensively analyzed. The temperature sensors convert and process the detected temperature signals and then transmit them to the remote control module via wired or wireless communication.

[0038] 2. Signal Judgment Stage: The remote control module receives the temperature signal from the temperature detection module and performs real-time analysis and judgment. Through preset programs and algorithms, the remote control module compares the received temperature with the set 400℃ threshold. If the kiln temperature does not reach 400℃, the system will continue to maintain the temperature detection state and continuously monitor the temperature change inside the kiln. If the temperature reaches 400℃, the remote control module will respond quickly and proceed to the next step.

[0039] 3. Control signal transmission stage: When the remote control module determines that the temperature inside the kiln has reached 400℃, it will immediately send a control signal to the signal receiver 7. After receiving the signal, the signal receiver will start the hydraulic cylinder 6. In order to ensure the smoothness and synchronicity of the furnace door closing, the two hydraulic cylinders adopt a synchronous control system to operate simultaneously. The piston rod of the hydraulic cylinder pushes the slider 10 to move in the slide groove 9. The movement of the slider drives the bearing block 5 to move, thereby causing the folding frame 4 to unfold. As the folding frame unfolds, the furnace door body 16 gradually moves upward, and finally the furnace door is closed.

[0040] 4. Feedback and Monitoring Stage: During the kiln door closing process, the limit sensor 17 and the sensing block on one side of the furnace body play crucial roles. The limit sensor 17 can detect the position of the kiln door in real time and feed back the position signal to the remote control module. The remote control module determines whether the kiln door is fully closed based on the received position signal. Simultaneously, operators can remotely monitor the kiln door's closing status and the kiln's internal temperature through terminal devices (computers, mobile phones, etc.). The terminal devices and the remote control module are connected via a network to achieve real-time data transmission and interaction, allowing operators to easily monitor the kiln's operation at any time.

[0041] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A remote control closing device for the kiln door after the electric kiln reaches 400°C during the drainage period, comprising a base (8) and a top plate (11), characterized in that, Four bearing blocks (5) are slidably connected between the opposite sidewalls of the base (8) and the top plate (11). A folding frame (4) is rotatably connected between the four bearing blocks (5). Hydraulic cylinders (6) are fixed on both sides of the base (8). The piston rods of the two hydraulic cylinders (6) are connected to a bearing block (5) on the same side. A signal receiver (7) is connected to one side of the base (8). A U-shaped bearing frame (3) is fixed at the upper end of the top plate (11). A furnace door body (16) is detachably installed on the U-shaped bearing frame (3). The furnace door body (16) is composed of a ceramic layer (13), a metal base layer (14), and a reinforcing plate (15) from the inside to the outside. A limit sensor (17) is installed on one side of the upper end of the furnace door body (16).

2. The remote control closing device for the kiln door after the drainage period of an electric kiln reaches 400℃, as described in claim 1, is characterized in that: Slide grooves (9) are provided between the opposite sidewalls of the base (8) and the top plate (11). Slide blocks (10) are installed on both sides of one slide groove (9) on the same side. The upper end of one slide block (10) on the same side is fixed to the lower end of a bearing block (5) on the same side.

3. The remote control closing device for the kiln door after the drainage period of an electric kiln reaches 400℃, as described in claim 2, is characterized in that: The piston rod of the hydraulic cylinder (6) passes through the side wall of the base (8) and extends into the slide groove (9). The piston rod of the hydraulic cylinder (6) is fixed to one end of a slider (10) on the same side.

4. The remote control closing device for the kiln door after the electric kiln reaches 400℃ during the drainage period, as described in claim 1, is characterized in that: The U-shaped support frame (3) has multiple limiting holes (2) at equal intervals on both sides. Two limiting holes (2) on the same side are a group. A stud (1) is inserted through the two limiting holes (2) in the same group. The stud (1) penetrates the furnace door body (16). A rotating block (12) is fixed at one end of the stud (1).

5. The remote control closing device for the kiln door after the drainage period of an electric kiln reaches 400℃, as described in claim 1, is characterized in that: The folding frame (4) consists of three X-shaped folding rods, which are rotatably connected to each other.

6. The remote control closing device for the kiln door after the drainage period of an electric kiln reaches 400℃, as described in claim 1, is characterized in that: The furnace door body (16) is coated with a nano-coating on its surrounding sidewalls.