Rapid zirconia sintering furnace

Abstract

The utility model discloses a rapid zirconia sintering furnace which comprises a first heating assembly, a hearth, a second heating assembly, a tray, a tray base, a base, a lifting device, a cooling device and a mounting frame. A mounting frame is arranged at the right end of the base; the hearth is mounted at the upper end of the mounting frame; the tray base is connected with the lifting device; the tray is mounted at the upper end of the tray base; the tray base is positioned below the hearth; and a second heating assembly is arranged at the lower end of the hearth, a first heating assembly is arranged at the upper end and a cooling device is arranged on the right side. According to the utility model, the temperature of the hearth can be quickly increased to a sintering set temperature, so that the overall sintering time of the porcelain teeth is effectively shortened, and the production efficiency of the porcelain teeth is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering furnaces, in particular to a zirconium oxide fast sintering furnace. Background Art

[0002] The porcelain teeth white oxide sintering furnace is a device used to make porcelain teeth. It combines white oxide powder with the porcelain teeth base material through high-temperature sintering to form a strong and durable porcelain tooth. There are still some problems in the use of the porcelain teeth white oxide sintering furnace. At present, the porcelain teeth white oxide sintering furnace usually uses silicon molybdenum rods as heating elements. The advantage of silicon molybdenum rods is that the controllable accuracy of the heating temperature is high, and the heating temperature also meets the requirements of porcelain teeth. However, the heating speed of silicon molybdenum rods is slow, which makes the sintering time of porcelain teeth longer, which is not conducive to improving the production efficiency of porcelain tooth manufacturers. Utility Model Content

[0003] The purpose of the utility model is to provide a zirconia fast sintering furnace, which can quickly raise the temperature of the furnace to the sintering set temperature, effectively shorten the overall sintering time of porcelain teeth, and improve the production efficiency of porcelain teeth. The specific technical solution is as follows:

[0004] A zirconia rapid sintering furnace comprises a first heating component, a furnace, a second heating component, a tray, a tray base, a base, a lifting device, a cooling device and a mounting frame; the mounting frame is arranged at the right end of the base; the lifting device is installed at the lower end of the mounting frame, and the furnace is installed at the upper end; the tray base is connected to the lifting device; the tray is installed at the upper end of the tray base; the tray base is located below the furnace; the second heating component is arranged at the lower end of the furnace, the first heating component is arranged at the upper end, and the cooling device is arranged on the right side.

[0005] Preferably, the first heating component is a silicon carbon rod or a silicon molybdenum rod.

[0006] Preferably, the furnace chamber includes an outer shell and a furnace wall; the outer shell is arranged on the outer side of the furnace wall; the second heating assembly includes a resistance wire mounting block and a resistance wire; the resistance wire mounting block is installed at the lower end of the furnace wall; and the resistance wire is installed in the middle of the resistance wire mounting block.

[0007] Preferably, the lifting device includes a lead screw and a threaded rod; the threaded rod is installed at the lower end of the mounting frame; the lead screw is installed on the threaded rod; and the lead screw is connected to the tray base.

[0008] Preferably, the cooling device includes a U-shaped rod, a cooling plate and a cooling fan; the horizontal rod of the U-shaped rod is arranged in the furnace, and two vertical rods pass through the furnace wall of the furnace and extend to the outside of the furnace wall; the cooling plate is connected to the vertical rod of the U-shaped rod; the cooling fan is installed at the upper end of the mounting frame, located on the right side of the cooling plate.

[0009] Preferably, a slide groove is provided on the top surface of the tray base, and a slider is provided on the bottom surface of the tray; when the tray is placed on the top surface of the tray base, the slider is connected to the slide groove.

[0010] Compared with the existing technology, the utility model has the following beneficial effects:

[0011] The utility model provides a first heating component and a second heating component. When the porcelain tooth is sintered, the lifting device raises the tray to the position of the second heating component through the tray base. The second group of heating components quickly raises the temperature of the furnace to a temperature close to the sintering set temperature. Then the second group of heating components stops heating, and the first heating component raises the temperature of the furnace to the sintering set temperature, and the sintering of the porcelain tooth can begin, which effectively shortens the overall sintering time of the porcelain tooth and improves the production efficiency of the porcelain tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the furnace and cooling device of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the lifting device of the utility model.

[0016] Figure 4 It is a structural schematic diagram of a tray and a tray base of the utility model.

[0017] Description of main reference numerals:

[0018] 1-first heating component, 2-furnace, 3-second heating component, 4-tray, 5-tray base, 6-base, 7-lifting device, 8-cooling device, 9-mounting frame, 10-housing, 11-furnace wall, 12-resistance wire mounting block, 13-resistance wire, 14-U-shaped rod, 15-cooling plate, 16-cooling fan, 17-threaded rod, 18-screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0023] Example 1

[0024] A zirconia rapid sintering furnace as shown in the figure includes a first heating component, a furnace, a second heating component, a tray, a tray base, a base, a lifting device, a cooling device and a mounting frame; the mounting frame is arranged at the right end of the base; the lifting device is installed at the lower end of the mounting frame, and the furnace is installed at the upper end; the tray base is connected to the lifting device; the tray is installed at the upper end of the tray base; the tray base is located below the furnace; the second heating component is arranged at the lower end of the furnace, the first heating component is arranged at the upper end, and a cooling device is arranged on the right side.

[0025] Next, the working principle of the embodiment is described in detail to enable those skilled in the art to better understand the present invention:

[0026] During the sintering process of porcelain teeth, the first heating component and the second heating component heat the furnace in two stages. The second heating component first quickly heats the furnace to 800-1000 degrees, and then the second heating component stops heating; then the first heating component heats the furnace to the specified temperature for sintering porcelain teeth. The tray is used to place the oxide and the base material. The lifting device is used to lift the tray into the furnace, or lower it to exit the furnace. The cooling device is used to accelerate the cooling speed of the furnace after sintering is completed.

[0027] When the porcelain teeth are sintered, the lifting device raises the tray to the position of the second heating component through the tray base. The second group of heating components quickly raises the temperature of the furnace to a temperature close to the sintering set temperature. Then the second group of heating components stops heating, and the first heating component raises the temperature of the furnace to the sintering set temperature. Then the sintering of the porcelain teeth can begin, which effectively shortens the overall sintering time of the porcelain teeth and improves the production efficiency of the porcelain teeth.

[0028] Example 2

[0029] This embodiment is different from Embodiment 1 in that the first heating component is a silicon carbon rod or a silicon molybdenum rod.

[0030] The working principle of this embodiment is the same as that of Embodiment 1.

[0031] Example 3

[0032] The difference between this embodiment and embodiment 2 is that the furnace includes an outer shell and a furnace wall; the outer shell is arranged on the outer side of the furnace wall; the second heating assembly includes a resistance wire mounting block and a resistance wire; the resistance wire mounting block is installed at the lower end of the furnace wall; and the resistance wire is installed in the middle of the resistance wire mounting block. The outer shell is installed on the outer side of the furnace wall to isolate the furnace wall from the external environment. An annular groove is opened in the middle of the resistance wire mounting block, and the resistance wire is annular and installed in the annular groove. The upper and lower ends of the annular groove are connected to the channels inside the furnace for the tray to pass through.

[0033] The working principle of this embodiment is the same as that of Embodiment 1.

[0034] Example 4

[0035] The difference between this embodiment and embodiment 3 is that the lifting device includes a lead screw and a threaded rod; the threaded rod is installed at the lower end of the mounting frame; the lead screw is installed on the threaded rod; the lead screw is connected to the tray base. The threaded rod is driven by the installed motor, and the rotation of the threaded rod can drive the lead screw to move up and down to change the height of the tray base connected to the lead screw.

[0036] The working principle of this embodiment is the same as that of Embodiment 1.

[0037] Example 5

[0038] The difference between this embodiment and embodiment 4 is that the cooling device includes a U-shaped rod, a cooling plate and a cooling fan; the horizontal rod of the U-shaped rod is arranged in the furnace, and two vertical rods pass through the furnace wall of the furnace and extend to the outside of the furnace wall; the cooling plate is connected to the vertical rod of the U-shaped rod; the cooling fan is installed at the upper end of the mounting frame, located on the right side of the cooling plate. The U-shaped rod is a silicon carbon rod or a silicon molybdenum rod; when the furnace needs to be cooled, the cooling fan can accelerate the cooling speed of the furnace by blowing toward the cooling plate and the U-shaped rod.

[0039] The working principle of this embodiment is the same as that of Embodiment 1.

[0040] Example 6

[0041] The difference between this embodiment and embodiment 5 is that a slide groove is provided on the top surface of the tray base, and a slider is provided on the bottom surface of the tray; when the tray is placed on the top surface of the tray base, the slider is connected to the slide groove. When the tray is placed on the top surface of the tray base, the slider is connected to the slide groove, which facilitates the staff to quickly place the tray at a fixed position on the top surface of the tray base, and is convenient and quick to use.

[0042] The working principle of this embodiment is the same as that of Embodiment 1.

[0043] To sum up, the utility model sets the first heating component and the second heating component. When the porcelain tooth is sintered, the lifting device raises the tray to the position of the second heating component through the tray base, and the second group of heating components quickly raises the temperature of the furnace to close to the sintering set temperature. Then the second group of heating components stops heating, and the first heating component raises the temperature of the furnace to the sintering set temperature, and the sintering of the porcelain tooth can begin, which effectively shortens the overall sintering time of the porcelain tooth and improves the production efficiency of the porcelain tooth.

[0044] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A zirconia rapid sintering furnace, characterized in that: It includes a first heating component, a furnace, a second heating component, a tray, a tray base, a base, a lifting device, a cooling device and a mounting frame; the mounting frame is arranged at the right end of the base; the lifting device is installed at the lower end of the mounting frame, and the furnace is installed at the upper end; the tray base is connected to the lifting device; the tray is installed at the upper end of the tray base; the tray base is located below the furnace; the second heating component is arranged at the lower end of the furnace, the first heating component is arranged at the upper end, and a cooling device is arranged on the right side.

2. A zirconia rapid sintering furnace according to claim 1, characterized in that: The first heating component is a silicon carbon rod or a silicon molybdenum rod.

3. The zirconia rapid sintering furnace according to claim 1, characterized in that: The furnace chamber includes an outer shell and a furnace wall; the outer shell is arranged on the outer side of the furnace wall; the second heating assembly includes a resistance wire mounting block and a resistance wire; the resistance wire mounting block is installed at the lower end of the furnace wall; the resistance wire is installed in the middle of the resistance wire mounting block.

4. The zirconia rapid sintering furnace according to claim 1, characterized in that: The lifting device comprises a lead screw and a threaded rod; the threaded rod is installed at the lower end of the mounting frame; the lead screw is installed on the threaded rod; and the lead screw is connected to the tray base.

5. The zirconia rapid sintering furnace according to claim 1, characterized in that: The cooling device includes a U-shaped rod, a cooling plate and a cooling fan; the horizontal rod of the U-shaped rod is arranged in the furnace, and two vertical rods pass through the furnace wall of the furnace and extend to the outside of the furnace wall; the cooling plate is connected to the vertical rod of the U-shaped rod; the cooling fan is installed at the upper end of the mounting frame, located on the right side of the cooling plate.

6. The zirconia rapid sintering furnace according to claim 1, characterized in that: A slide groove is arranged on the top surface of the tray base, and a slider is arranged on the bottom surface of the tray; when the tray is placed on the top surface of the tray base, the slider is connected to the slide groove.

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