Porcelain baking furnace for artificial tooth production

By introducing lifting and cooling components and an air-cooling system into the porcelain furnace used for denture production, the problem of long cooling time caused by high temperature when dentures are removed from the chamber has been solved, achieving rapid cooling and reducing the risk of burns.

CN223500123UActive Publication Date: 2025-10-31CHANGSHA MEIGUANDA DENTAL MEDICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422908248.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-31
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The existing porcelain furnaces used for denture production produce dentures at extremely high temperatures when the dentures are removed from the furnace after porcelain firing, resulting in long cooling times, which affects production efficiency and increases operational risks.

Method used

A porcelain furnace for denture production was designed, comprising a porcelain container assembly and a lifting and cooling assembly. A servo motor drives a lead screw to rotate, thereby lifting and lowering a tray, and a cooling fan is used for air cooling to achieve rapid cooling.

Benefits of technology

It enables rapid cooling of the porcelain denture container, solving the problem of long cooling time, and reduces the risk of burns through the separate tray design.

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Abstract

The utility model relates to the technical field of artificial tooth porcelain baking furnaces, in particular to a porcelain baking furnace for artificial tooth production. According to the technical scheme, the porcelain furnace for producing the artificial teeth comprises an artificial tooth porcelain container assembly, a lifting cooling assembly, a heating oven and a control box, a heating oven is arranged at the upper end of the artificial tooth porcelain container assembly; lifting cooling assemblies are arranged on the two sides of the artificial tooth porcelain container assembly; a control box is arranged at the lower end of the artificial tooth porcelain container assembly; the artificial tooth porcelain container assembly comprises a porcelain plate and a porcelain cover; cooling fans are arranged on the two sides of the porcelain baking plate; through the arrangement of the lifting cooling assembly, the servo motor of the lifting cooling assembly drives the lead screw shaft to rotate so as to drive the lead screw shaft sleeve, the first lifting tray and the second lifting tray to lift, so that the artificial tooth porcelain container assembly is lifted to enter the heating oven to be heated and then is descended, and the artificial tooth porcelain container assembly is subjected to air cooling in cooperation with the cooling fan; therefore, the rapid cooling function of the artificial tooth porcelain container assembly is realized.
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Description

Technical Field

[0001] This utility model belongs to the technical field of porcelain furnaces for dentures, specifically relating to porcelain furnaces used in denture production. Background Technology

[0002] The porcelain firing furnace is a key piece of equipment in the production of porcelain restorations, and its development has progressed from electric porcelain firing furnaces to vacuum porcelain firing furnaces, and from manual operation to computer program control. Modern porcelain firing furnaces have advantages such as computer program control, ease of operation, accurate temperature control, large furnace capacity, and comprehensive safety protection systems.

[0003] However, existing porcelain-fused-to-metal furnaces used in denture production suffer from prolonged cooling times after the porcelain dentures are removed from the furnace due to their extremely high temperature. This not only affects production efficiency but may also increase operational risks. Porcelain dentures typically require natural cooling after removal from the furnace, but this process is time-consuming and influenced by various factors such as furnace material, size, and ambient temperature. Larger furnaces, due to their larger size and higher heat capacity, require even longer cooling times.

[0004] Therefore, in response to the problem that existing porcelain furnaces used for denture production have extremely high temperatures when the porcelain dentures are removed from the furnace, resulting in a long cooling time after the porcelain is fired, a porcelain furnace for denture production can be designed. Utility Model Content

[0005] In order to overcome the problem of the long cooling time after the porcelain dentures are cooled down due to the extremely high temperature of the porcelain dentures when they leave the furnace, the existing porcelain furnaces used for denture production are used.

[0006] The technical solution of this utility model is as follows: a porcelain furnace for denture production, including a porcelain denture container assembly, a lifting and cooling assembly, a heating furnace, and a control box; the heating furnace is provided at the upper end of the porcelain denture container assembly; lifting and cooling assemblies are provided on both sides of the porcelain denture container assembly; the control box is provided at the lower end of the porcelain denture container assembly; the porcelain denture container assembly includes a porcelain baking tray and a porcelain baking cover; cooling fans are provided on both sides of the porcelain baking tray; and lead screws are provided at both the front and rear ends of the outer side of each cooling fan.

[0007] Preferably, by setting up a lifting and cooling component, the servo motor of the lifting and cooling component drives the lead screw shaft to rotate, thereby driving the lead screw bushing and the first and second lifting trays to rise and fall. This allows the porcelain denture container assembly to rise into the heating oven for heating and then fall down. In conjunction with the cooling fan, it is cooled by air, thereby achieving the function of rapid cooling of the porcelain denture container assembly. This solves the problem of long cooling time after porcelain dentures are finished in existing porcelain furnaces used for denture production because the temperature of the porcelain dentures is extremely high when they leave the furnace.

[0008] Preferably, both ends of the lead screw shaft are provided with lead screw shaft bearings, and the lead screw shaft bearings are rotatably connected to each other; a ceramic cover is provided below the ceramic baking tray.

[0009] Preferably, a lead screw sleeve is fitted on the outer side of the lead screw shaft, and the lead screw sleeve is connected to the lead screw shaft via a threaded lifting transmission.

[0010] Preferably, a first lifting tray is fixedly installed between the lead screw bushings on one side, and a second lifting tray is fixedly installed between the lead screw bushings on the other side.

[0011] Preferably, the first lifting tray is located at the lower end of the ceramic coating cover; the ceramic coating plate is located at the lower end of the first lifting tray; and the second lifting tray is located at the lower end of the ceramic coating plate.

[0012] Preferably, a servo motor is installed below the lower lead screw shaft bearing, and the output end of the servo motor is connected to the lead screw shaft belt drive.

[0013] Preferably, both cooling fans are positioned to blow air towards the ceramic cover.

[0014] The beneficial effects of this utility model are:

[0015] 1. Existing porcelain furnaces for denture production suffer from the problem of prolonged cooling time after porcelain dentures are fired due to the extremely high temperature of the dentures upon exiting the furnace. By incorporating a lifting and cooling assembly, a servo motor drives a lead screw shaft to rotate, thereby raising and lowering the lead screw sleeve and the first and second lifting trays. This allows the porcelain denture container to rise into the heating furnace for heating, then descend, where a cooling fan provides air cooling, achieving rapid cooling of the porcelain denture container. This solves the problem of prolonged cooling time after porcelain dentures are fired due to their extremely high temperature upon exiting the furnace.

[0016] 2. By setting up the first lifting tray and the second lifting tray, the independent lifting of the first lifting tray and the second lifting tray realizes the function of separating and combining the ceramic cover and the ceramic plate, avoiding the need to manually open the ceramic cover and reducing the risk of burns. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the porcelain furnace for denture production according to this utility model.

[0018] Figure 2 The diagram shown is a rear three-dimensional view of the overall structure of the porcelain furnace for denture production according to this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional internal structure of the porcelain furnace for denture production according to this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the lifting and cooling assembly of the porcelain furnace for denture production according to this utility model.

[0021] The labels in the attached diagram are as follows: 1. Dental porcelain container assembly; 2. Heating oven; 3. Lifting and cooling assembly; 4. Control box; 101. Porcelain tray; 102. Porcelain cover; 301. Lead screw shaft; 302. Lead screw shaft bearing; 303. Lead screw bushing; 304. First lifting tray; 305. Second lifting tray; 306. Servo motor; 307. Cooling fan. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment: a porcelain furnace for denture production, including a porcelain denture container assembly 1, a lifting and cooling assembly 3, a heating furnace 2, and a control box 4; the heating furnace 2 is provided at the upper end of the porcelain denture container assembly 1; the lifting and cooling assembly 3 is provided on both sides of the porcelain denture container assembly 1; the control box 4 is provided at the lower end of the porcelain denture container assembly 1; the porcelain denture container assembly 1 includes a porcelain baking tray 101 and a porcelain baking cover 102; cooling fans 307 are provided on both sides of the porcelain baking tray 101; and lead screw shafts 301 are provided at both the front and rear ends of the outer side of each cooling fan 307.

[0024] Please see Figure 1-4 In this embodiment, both the upper and lower ends of the lead screw shaft 301 are provided with lead screw shaft bearings 302, and the lead screw shaft bearings 302 are rotatably connected to the lead screw shaft 301 bearings; a ceramic cover 102 is provided below the ceramic baking tray 101; a lead screw shaft sleeve 303 is sleeved on the outer side of the lead screw shaft 301, and the lead screw shaft sleeve 303 is threadedly connected to the lead screw shaft 301 for lifting transmission; a first lifting tray 304 is fixedly provided between the lead screw shaft sleeves 303 on one side, and the lead screw shaft sleeves 303 on the other side are... A second lifting tray 305 is fixedly installed in the middle; a first lifting tray 304 is installed at the lower end of the ceramic coating cover 102; a ceramic coating plate 101 is installed at the lower end of the first lifting tray 304; a second lifting tray 305 is installed at the lower end of the ceramic coating plate 101; a servo motor 306 is installed below the lead screw shaft bearing 302 in the lower layer, and the output end of the servo motor 306 is connected to the lead screw shaft 301 by belt drive; two cooling fans 307 are both set to blow air towards the ceramic coating cover 102.

[0025] During operation, the servo motor 306 of the lifting and cooling assembly 3 drives the lead screw shaft 301 to rotate, thereby driving the lead screw bushing 303 and the first lifting tray 304 and the second lifting tray 305 to rise and fall. This allows the porcelain denture container assembly 1 to rise into the heating oven 2 for heating and then fall down. In conjunction with the cooling fan 307, it is cooled by air, thus achieving the function of rapid cooling of the porcelain denture container assembly 1. This solves the problem of long cooling time after porcelain dentures are finished in existing porcelain furnaces used for denture production because the temperature of the porcelain dentures is extremely high when they leave the furnace.

[0026] Next, the independent lifting of the first lifting tray 304 and the second lifting tray 305 enables the separation and combination of the ceramic cover 102 and the ceramic plate 101, avoiding the need to manually open the ceramic cover 102 and reducing the risk of burns.

[0027] Through the above steps, by setting up the lifting and cooling component 3, the servo motor 306 of the lifting and cooling component 3 drives the lead screw shaft 301 to rotate, thereby driving the lead screw bushing 303 and the first lifting tray 304 and the second lifting tray 305 to rise and fall. This allows the porcelain denture container component 1 to rise into the heating oven 2 for heating and then fall down. In conjunction with the cooling fan 307, it is cooled by air, thereby achieving the rapid cooling function of the porcelain denture container component 1. This avoids the problem of long cooling time after porcelain dentures are finished, which is caused by the extremely high temperature of the porcelain dentures when they leave the oven.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A porcelain furnace for denture production, comprising a porcelain container assembly for dentures (1) and a lifting and cooling assembly (3), characterized in that: It also includes a heating oven (2) and a control box (4); the upper end of the dental porcelain container assembly (1) is provided with a heating oven (2); both sides of the dental porcelain container assembly (1) are provided with lifting and cooling components (3); the lower end of the dental porcelain container assembly (1) is provided with a control box (4); the dental porcelain container assembly (1) includes a porcelain plate (101) and a porcelain cover (102); both sides of the porcelain plate (101) are provided with cooling fans (307); each cooling fan (307) has a lead screw shaft (301) at both the front and rear ends of its outer side.

2. The porcelain furnace for denture production according to claim 1, characterized in that: Both ends of the lead screw shaft (301) are provided with lead screw shaft bearings (302), and the lead screw shaft bearings (302) are rotatably connected to the lead screw shaft (301) bearing; a ceramic cover (102) is provided below the ceramic plate (101).

3. The porcelain furnace for denture production according to claim 1, characterized in that: A screw sleeve (303) is fitted on the outer side of the lead screw shaft (301), and the lead screw sleeve (303) is threadedly connected to the lead screw shaft (301) for lifting transmission.

4. The porcelain furnace for denture production according to claim 3, characterized in that: A first lifting tray (304) is fixedly installed between the lead screw bushings (303) on one side, and a second lifting tray (305) is fixedly installed between the lead screw bushings (303) on the other side.

5. The porcelain furnace for denture production according to claim 4, characterized in that: The first lifting tray (304) is located at the lower end of the ceramic coating cover (102); the ceramic coating plate (101) is located at the lower end of the first lifting tray (304); and the second lifting tray (305) is located at the lower end of the ceramic coating plate (101).

6. The porcelain furnace for denture production according to claim 2, characterized in that: A servo motor (306) is installed below the lower lead screw shaft bearing (302), and the output end of the servo motor (306) is connected to the lead screw shaft (301) via belt drive.

7. The porcelain furnace for denture production according to claim 1, characterized in that: Both cooling fans (307) are set to blow air towards the ceramic cover (102).