False tooth sintering furnace

Abstract

The utility model belongs to the technical field of false tooth machining equipment, and discloses a false tooth sintering furnace which comprises a base, a sintering furnace body is installed on the upper surface of the base, two sets of grooves are formed in the upper surface of the base, and driving mechanisms for driving false teeth to be evenly heated are arranged in the two sets of grooves of the base. Heat dissipation mechanisms are arranged on the left side and the right side of the driving mechanism, the driving mechanism is arranged to be of a cylindrical structure, a cylindrical contour is formed in a hearth of a follow-up sintering furnace body, then the hearth in the follow-up sintering furnace body does not need to be provided with a special-shaped inner contour, and the driving mechanism is simple in structure and convenient to operate. A follow-up driving mechanism can be quickly put into production, so that the manufacturing cost of the follow-up device is reduced; and the driving mechanism is started to trigger the heat dissipation mechanism to dissipate heat of the bottom of the inner wall of the heat dissipation mechanism, so that the subsequent driving mechanism is prevented from being in long-term contact with high temperature in the use process as much as possible.

Description

Technical Field

[0001] This utility model relates to the technical field of dental prosthesis processing equipment, specifically to a dental prosthesis sintering furnace. Background Technology

[0002] A dental prosthesis sintering furnace is a device specifically designed for sintering dental ceramics or alloys to produce dentures, crowns, bridges, and other dental restorative materials.

[0003] For example, the utility model with announcement number CN221259503U discloses a denture sintering furnace, including a workbench, a sintering furnace installed on the workbench, a furnace chamber inside the sintering furnace, a high-temperature resistant protective cover fixed to the outside of the bottom end of the furnace chamber, a lifting platform on the workbench, a turntable rotatably mounted on the lifting platform, a placement platform fixed on the turntable, and a driving mechanism inside the workbench. The driving mechanism includes a movable frame, a screw structure located inside the workbench, and a toothed plate mounted on the screw structure. This application uses the screw structure to drive the lifting platform to move up and down, thereby facilitating the entry of the denture into the furnace chamber for high-temperature sintering. The high-temperature resistant protective cover protects the outside of the bottom end of the lifting platform from high-temperature burns. The meshing of the toothed plate with gear one and gear two drives the denture to rotate in position during the sintering process, thereby adjusting the heated surface of the denture, making the overall heating of the denture more uniform, and improving the sintering efficiency.

[0004] In the process of developing this application, the following problems were found with the technology: the existing denture sintering furnace requires an irregularly shaped furnace chamber during use so that the subsequent rotating mechanism can be inserted into the furnace chamber to drive the denture to rotate and heat normally, which increases the production cost of the denture sintering furnace and thus reduces the practicality of the equipment.

[0005] Therefore, a denture sintering furnace is proposed. Utility Model Content

[0006] The purpose of this utility model is to solve the problem that existing denture sintering furnaces require irregularly shaped furnace chambers during use, so that the subsequent rotating mechanism can be inserted into the furnace chamber to drive the denture to rotate and heat normally, thereby increasing the production cost of the denture sintering furnace. This utility model provides a denture sintering furnace.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A denture sintering furnace includes a base, on the upper surface of which a sintering furnace body is mounted. Two sets of grooves are formed on the upper surface of the base. A drive mechanism for uniformly heating dentures is disposed inside the two sets of grooves. Heat dissipation mechanisms are disposed on the left and right sides of the drive mechanism.

[0009] Furthermore, the driving mechanism includes two sets of electric telescopic rods, which are respectively installed inside two sets of grooves on the base. A fixed ring is installed at the output end of each set of electric telescopic rods. A connecting plate is provided on the inner wall of the fixed ring, and a groove is formed on the inner wall of the connecting plate. A placement platform is provided inside the groove of the connecting plate, and a prosthesis is placed inside the placement platform. A fixing plate is installed on the inner wall of the fixed ring, and a groove is formed on the upper surface of the fixing plate. A rotating rod is rotatably connected inside the groove of the fixing plate. A bevel gear one is provided on the outer surface of the rotating rod, and the outer teeth of the bevel gear one are meshed with a bevel gear two. A motor is installed on the lower surface of the fixing plate, and the output shaft of the motor is installed on the side of the bevel gear two near the rotating rod. The placement platform is located at the lower end of the furnace chamber inside the sintering furnace body, and the outer contour of the fixed ring matches the inner contour of the furnace chamber inside the sintering furnace body.

[0010] Furthermore, the heat dissipation mechanism includes two sets of positioning blocks, two sets of contact switches, and a cooling fan. The upper surface of the base has a positioning groove, and the cooling fan is installed inside the positioning groove of the base. The upper surface of the base has two sets of positioning slots, and the two sets of contact switches are respectively installed inside the two sets of positioning slots of the base. The two sets of positioning blocks are respectively installed on the left and right sides of the fixed ring. The lower surfaces of the two sets of positioning blocks abut against the upper surfaces of the two sets of contact switches. The two sets of contact switches and the control terminal of the cooling fan are electrically connected.

[0011] Furthermore, a conical positioning block is installed at the bottom of the inner wall of the placement platform, and the outer contour of the conical positioning block is adapted to the inner contour of the denture placed inside the conical positioning block.

[0012] Furthermore, a protective cover is installed on the top of the inner wall of the sintering furnace body, and the position of the inner contour of the protective cover is parallel to the position of the inner contour of the fixed ring.

[0013] Furthermore, the upper surface of the fixing ring is provided with two sets of grooves, and a limit rod is installed inside each of the two sets of grooves of the fixing ring. The upper surface of the base is provided with two sets of slots, and the two sets of limit rods are slidably connected inside the two sets of slots of the base.

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

[0015] 1. This utility model uses two sets of electric telescopic rods to push a fixed ring, which in turn moves the placement platform upwards. The fixed ring is then inserted into the furnace chamber of the sintering furnace body. A motor then drives bevel gear two, bevel gear one, and a rotating rod to rotate. This rotation causes the placement platform to rotate within the furnace chamber, ensuring that the denture placed inside is heated evenly during the heating process, thus completing the denture processing. The cylindrical structure of the drive mechanism allows for a cylindrical profile within the furnace chamber, eliminating the need for irregularly shaped internal contours. Furthermore, the simple structure of the drive mechanism allows for rapid deployment in production, reducing the overall cost of the device and improving its practicality.

[0016] 2. This utility model uses a fixed ring to move two sets of positioning blocks upwards, causing the lower surfaces of the two sets of positioning blocks to disconnect from the two sets of contact switches. This allows the two sets of contact switches to trigger the cooling fan. Since the cooling fan is located directly below the motor, it accelerates the motor's heat dissipation during startup, thus minimizing the risk of damage to the motor due to prolonged exposure to high temperatures during use. This extends the motor's lifespan and improves the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the top surface structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the top surface structure of the bevel gear of this utility model;

[0020] Figure 4 This is a schematic diagram of the top structure of the cooling fan of this utility model.

[0021] Reference numerals in the attached drawings: 1. Base; 2. Sintering furnace body; 3. Drive mechanism; 301. Fixing ring; 302. Connecting plate; 303. Placement platform; 304. Electric telescopic rod; 305. Fixing plate; 306. Motor; 307. Bevel gear one; 308. Rotating rod; 309. Bevel gear two; 4. Conical positioning block; 5. Heat dissipation mechanism; 501. Positioning block; 502. Contact switch; 503. Cooling fan; 6. Limiting rod; 7. Protective cover. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figures 1 to 4 As shown, a denture sintering furnace includes a base 1, a sintering furnace body 2 mounted on the upper surface of the base 1, two sets of grooves on the upper surface of the base 1, and a drive mechanism 3 for uniformly heating dentures disposed inside the two sets of grooves. Heat dissipation mechanisms 5 are disposed on the left and right sides of the drive mechanism 3. Specifically, by setting the drive mechanism 3 to a cylindrical structure, the furnace chamber of the sintering furnace body 2 is formed with a cylindrical outline, thus eliminating the need for irregularly shaped inner contours in the furnace chamber. Furthermore, the simple structure of the drive mechanism 3 allows for rapid production deployment, reducing the cost of the device and improving its practicality. Activating the drive mechanism 3 triggers the heat dissipation mechanism 5 to dissipate heat from the bottom of its inner wall, minimizing the risk of damage to the internal electronic equipment of the drive mechanism 3 due to prolonged exposure to high temperatures.

[0027] like Figures 1 to 4 As shown, the drive mechanism 3 includes two sets of electric telescopic rods 304, which are respectively installed inside two sets of grooves in the base 1. A fixing ring 301 is installed at the output end of each set of electric telescopic rods 304. A connecting plate 302 is provided on the inner wall of the fixing ring 301, and a groove is formed on the inner wall of the connecting plate 302. A placement platform 303 is provided inside the groove of the connecting plate 302, and a denture is placed inside the placement platform 303. A fixing plate 305 is installed on the inner wall of the fixing ring 301, and a groove is formed on the upper surface of the fixing plate 305. A rotating rod 308 is rotatably connected inside the groove of the fixing plate 305. A bevel gear 307 is provided on the outer surface of the rotating rod 308. A bevel gear 309 is meshed with the outer teeth of the bevel gear 307. A motor 306 is installed on the lower surface of the fixing plate 305. The output shaft of the motor 306 is installed on the side of the bevel gear 309 near the rotating rod 308. The placement platform 303 is located at the lower end of the furnace chamber inside the sintering furnace body 2. The outer contour of the fixing ring 301 is adapted to the inner contour of the furnace chamber inside the sintering furnace body 2.

[0028] Specifically, by activating two sets of electric telescopic rods 304, the fixed ring 301 is pushed to move the placement platform 303 upward, inserting the fixed ring 301 into the furnace chamber of the sintering furnace body 2. Then, by activating the motor 306, the bevel gear 2 309, the bevel gear 1 307, and the rotating rod 308 are driven to rotate. As the rotating rod 308 rotates, it drives the placement platform 303 to rotate inside the furnace chamber of the sintering furnace body 2. This allows the denture placed inside the placement platform 303 to be heated evenly during the heating process, thus completing the denture processing. The drive mechanism 3 is designed with a cylindrical structure, so that the furnace chamber of the sintering furnace body 2 has a cylindrical outline. This eliminates the need for irregularly shaped inner outlines inside the furnace chamber of the sintering furnace body 2. Furthermore, the simple structure of the drive mechanism 3 allows it to be quickly put into production, thereby reducing the cost of the device and improving its practicality.

[0029] like Figure 1 and Figure 4 As shown, the heat dissipation mechanism 5 includes two sets of positioning blocks 501, two sets of contact switches 502, and a cooling fan 503. The upper surface of the base 1 is provided with a positioning groove. The cooling fan 503 is installed inside the positioning groove of the base 1. The upper surface of the base 1 is provided with two sets of positioning slots. The two sets of contact switches 502 are respectively installed inside the two sets of positioning slots of the base 1. The two sets of positioning blocks 501 are respectively installed on the left and right sides of the fixing ring 301. The lower surfaces of the two sets of positioning blocks 501 abut against the upper surfaces of the two sets of contact switches 502. The two sets of contact switches 502 and the control terminals of the cooling fan 503 are electrically connected.

[0030] Specifically, when the subsequent fixing ring 301 drives the placement platform 303 into the furnace chamber of the sintering furnace body 2, the fixing ring 301 drives the two sets of positioning blocks 501 to move upward, causing the lower surface of the two sets of positioning blocks 501 to disconnect from the two sets of contact switches 502. This causes the two sets of contact switches 502 to trigger the start of the cooling fan 503. Since the cooling fan 503 is located directly below the motor 306, the cooling fan 503 accelerates the heat dissipation of the motor 306 during startup, thereby minimizing the risk of damage to the motor 306 due to prolonged exposure to high temperatures during use. This improves the service life of the motor 306 and enhances the practicality of the device.

[0031] like Figure 1 As shown, a conical positioning block 4 is installed on the bottom of the inner wall of the placement platform 303. The outer contour of the conical positioning block 4 matches the inner contour of the denture placed inside the conical positioning block 4. Specifically, before the subsequent denture is placed inside the placement platform 303, the hollow denture is pushed to insert the denture into the outer end of the conical positioning block 4, so that the conical positioning block 4 restricts the movement of the denture inside the placement platform 303, thereby minimizing the possibility that the position of the subsequent denture will move during the rotation of the placement platform 303, resulting in uneven heating of the outer end of the denture.

[0032] like Figure 1 and Figure 2 As shown, a protective cover 7 is installed on the top of the inner wall of the sintering furnace body 2. The position of the inner contour of the protective cover 7 is parallel to the position of the inner contour of the fixing ring 301. Specifically, by keeping the position of the inner contour of the protective cover 7 parallel to the position of the inner contour of the fixing ring 301, the protective cover 7 can wrap the exposed part of the fixing ring 301 when it is inserted into the furnace chamber of the sintering furnace body 2, thereby minimizing the risk of subsequent workers coming into contact with the outer surface of the fixing ring 301 and being burned by the fixing ring 301. This improves the safety of the subsequent drive mechanism 3 during use.

[0033] like Figure 1 , Figure 3 and Figure 4As shown, the upper surface of the fixed ring 301 has two sets of grooves, and each set of grooves of the fixed ring 301 has a limiting rod 6 installed inside. The upper surface of the base 1 has two sets of slots, and the two sets of limiting rods 6 are slidably connected inside the two sets of slots of the base 1. Specifically, by slidably connecting the two sets of limiting rods 6 inside the two sets of slots of the base 1, and by installing the tops of the two sets of limiting rods 6 inside the two sets of grooves of the fixed ring 301, the two sets of limiting rods 6 restrict the movement path of the fixed ring 301, thereby minimizing the risk of the fixed ring 301 shifting position during use and causing the two sets of electric telescopic rods 304 to bend, thus improving the service life of the drive mechanism 3.

[0034] In summary: By activating two sets of electric telescopic rods 304, the fixed ring 301 is pushed, causing the placement platform 303 to move upwards. The fixed ring 301 is then inserted into the furnace chamber of the sintering furnace body 2. Next, the motor 306 drives the bevel gear 2 309, bevel gear 1 307, and rotating rod 308 to rotate. This rotation of the rotating rod 308 causes the placement platform 303 to rotate within the furnace chamber of the sintering furnace body 2. This ensures that the denture placed inside the placement platform 303 is heated evenly during the heating process, thus completing the denture placement process. Gear machining; the fixed ring 301 drives the two sets of positioning blocks 501 to move upward, so that the lower surface of the two sets of positioning blocks 501 is disconnected from the two sets of contact switches 502, thereby triggering the two sets of contact switches 502 to start the cooling fan 503. Since the cooling fan 503 is located directly below the motor 306, the cooling fan 503 accelerates the heat dissipation of the motor 306 during the start-up process, thereby minimizing the risk of damage to the motor 306 due to prolonged exposure to high temperatures during use.

[0035] At the same time, by pushing the hollow denture to insert it into the outer end of the conical positioning block 4, the conical positioning block 4 restricts the movement of the denture inside the placement platform 303, thereby minimizing the possibility of the denture moving during the rotation of the placement platform 303.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Denture sintering furnace comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a sintering furnace body (2), the upper surface of the base (1) is provided with two groups of grooves, the inside of the two groups of grooves of the base (1) is provided with a driving mechanism (3) for driving the denture to heat uniformly, and the left and right sides of the driving mechanism (3) are provided with a heat dissipation mechanism (5).

2. The denture sintering furnace according to claim 1, characterized in that: The driving mechanism (3) comprises two groups of electric telescopic rods (304), the two groups of electric telescopic rods (304) are respectively arranged in the two groups of grooves of the base (1), the output ends of the two groups of electric telescopic rods (304) are provided with a fixed ring (301), the inner wall of the fixed ring (301) is provided with a connecting plate (302), the inner wall of the connecting plate (302) is provided with a groove, the inside of the groove of the connecting plate (302) is provided with a placing table (303), the inside of the placing table (303) is provided with a denture, the inner wall of the fixed ring (301) is provided with a fixed plate (305), the upper surface of the fixed plate (305) is provided with a groove, the inside of the groove of the fixed plate (305) is rotatably connected with a rotating rod (308), the outer surface of the rotating rod (308) is provided with a conical gear one (307), the outer teeth of the conical gear one (307) are rotatably connected with a conical gear two (309), the lower surface of the fixed plate (305) is provided with a motor (306), the output shaft of the motor (306) is arranged on the side of the conical gear two (309) close to the rotating rod (308), the position of the placing table (303) is located at the lower end of the inside hearth of the sintering furnace body (2), and the outer contour of the fixed ring (301) is matched with the inner contour of the inside hearth of the sintering furnace body (2).

3. The denture sintering furnace according to claim 2, characterized in that: The heat dissipation mechanism (5) comprises two groups of positioning blocks (501), two groups of contact type switches (502) and a heat dissipation fan (503), the upper surface of the base (1) is provided with a positioning groove, the heat dissipation fan (503) is arranged in the positioning groove of the base (1), the upper surface of the base (1) is provided with two groups of positioning clamping grooves, the two groups of contact type switches (502) are respectively arranged in the two groups of positioning clamping grooves of the base (1), the two groups of positioning blocks (501) are respectively arranged at the left and right sides of the fixed ring (301), the lower surfaces of the two groups of positioning blocks (501) are respectively abutted against the upper surfaces of the two groups of contact type switches (502), and the control ends of the two groups of contact type switches (502) and the heat dissipation fan (503) are electrically connected.

4. The denture sintering furnace according to claim 2, characterized in that: The inner wall bottom of the placing table (303) is provided with a conical positioning block (4), and the outer contour of the conical positioning block (4) is matched with the inner contour of the denture placed in the conical positioning block (4).

5. The denture sintering furnace according to claim 2, characterized in that: The inner wall top of the sintering furnace body (2) is provided with a protective cover (7), and the position of the inner contour of the protective cover (7) is parallel to the position of the inner contour of the fixed ring (301).

6. The denture sintering furnace according to claim 2, characterized in that: The upper surface of the fixed circular ring (301) is provided with two groups of grooves, and the two groups of grooves of the fixed circular ring (301) are internally provided with limiting rods (6); the upper surface of the base (1) is provided with two groups of clamping grooves, and the two groups of limiting rods (6) are respectively and slidingly connected in the two groups of clamping grooves of the base (1).

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