False tooth fast firing furnace heating area structure

Abstract

The utility model discloses a heating area structure of a false tooth fast firing furnace, which relates to the technical field of fast firing furnaces and comprises a hollow cylindrical heating rod and an insulated plug. The upper side of the heating rod is integrally and symmetrically connected with two extension parts, the extension parts penetrate through the plugs, and the upper ends of the extension parts are connected with conductive connectors; according to the utility model, the heating rod is provided with the two extension parts penetrating through the insulating plugs, and is connected with the conductive joints through the extension parts; the stability of power-on heating is guaranteed, structural members are simplified, the structure is more compact, and structural member damage caused by heating expansion of the heating rod is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fast burning stove technical field, especially relate to a false tooth fast burning stove heating area structure. BACKGROUND

[0002] The main role of the false tooth fast burning stove is to sinter the false tooth, improve the work efficiency and ensure the quality of the false tooth. Through high temperature treatment, the false tooth material is sintered into shape, and through rapid heating, uniform heating and accurate temperature control, the temperature stability in the sintering process is ensured, and the hardness and durability of the false tooth are ensured.

[0003] Such as the patent ceramic fast burning stove heating structure of CN219223294U in the prior art is used for the rapid heating of ceramic materials such as false tooth. But the prior art at least has the following shortcomings: the electrically conductive connecting structure adopts the hoop structure hoop in the outer side of the heating body, in order to ensure good electric contact, the electrically conductive hoop is tightly hooped in the outer side of the hollow cylindrical heating body, when electrified heating, due to rapid heating, the heating body generates thermal expansion phenomenon, and the electrically conductive hoop connecting structure is damaged due to long-time use and frequent use, the electric conduction is affected, and the electrically conductive hoop needs to be replaced frequently; the high-strength electrically conductive hoop and the hoop connecting structure will cause the heating body to deform or even break when coping with the expansion of the heating body. The insulating plug also surrounds the heating body through the locking hoop, and similar problems can also occur. UTILITY MODEL CONTENTS

[0004] The utility model discloses a false tooth fast burning stove heating area structure.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A false tooth fast burning stove heating area structure, comprising a hollow cylindrical heating rod and an insulating plug, the heating rod is integrally connected with two extension parts on the upper side, the extension part passes through the plug, and the upper end of the extension part is connected with an electrically conductive connector.

[0007] Further, the plug is provided with a through hole for the extension part to pass through, and the electrically conductive connector is connected with the upper end of the extension part through a bolt.

[0008] Further, the electrically conductive connector is in the shape of L, and the electrically conductive connector is provided with a through hole for the bolt to pass through at both ends.

[0009] Further, the lower end edge of the plug is provided with a first step for cooperating with the heating rod, and a thermocouple is arranged in the center of the plug.

[0010] Further, the heating rod comprises two spiral heating bands.

[0011] Further, the utility model also comprises a furnace chamber, and the outer side of the upper part of the plug is provided with a second step for cooperating with the upper end of the furnace chamber.

[0012] Further, the furnace chamber is sleeved with a heat preservation cylinder outside; the furnace chamber is provided with a cover plate surrounding the upper end of the plug; the furnace chamber is provided with a supporting table inside the lower part, the supporting table is provided with a crucible for placing denture material on the upper side, and the supporting table is provided with a tray on the lower side.

[0013] Further, the heat preservation cylinder is provided with a shell outside, the upper end of the shell is provided with an opening; the lower wall of the shell is provided with a through hole for the supporting table to pass through, and the lower wall of the shell is connected with a ring-shaped bottom plate through bolts.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a heating rod, which comprises an insulating plug, an extension part penetrating through the insulating plug and an electrically conductive connector, wherein the extension part is connected with the electrically conductive connector. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an internal structure schematic view of the utility model.

[0017] Figure 2 It is an internal structure explosion first perspective schematic view of the utility model.

[0018] Figure 3 It is an internal structure explosion second perspective schematic view of the utility model.

[0019] Figure 4 It is a first perspective schematic view of the utility model outside.

[0020] Figure 5 It is a cross section structure schematic view of the utility model.

[0021] Figure 6 It is a second perspective schematic view of the utility model outside.

[0022] Figure 7 It is a crucible schematic view of the utility model.

[0023] In the drawing: 1, heating rod;2, plug;3, electrically conductive connector;4, shell;5, heat preservation cylinder;6, furnace chamber;7, bottom plate;8, supporting table;9, tray;10, crucible;11, cover plate;12, thermocouple;

[0024] 101, extension part;102, spiral heating band;201, penetrating hole;202, first step;203, second step;204, center hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0026] In the description of the utility model, unless there is explicit provision and limitation, the terms "mounting", "connection" and "connection" that may appear should be understood broadly, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be direct connection, or it can be indirect connection through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the description of the utility model, it should be pointed out that, unless there is explicit provision and limitation, the term "provided with" that may appear should be understood broadly, for example, the object of "provided with" can be part of the body, or it can be arranged separately from the body and connected to the body, and the connection can be detachable connection, or it can be non-detachable connection. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] The utility model will be further described in detail below in combination with examples.

[0029] The specific embodiment of the denture fast firing furnace heating zone structure provided by the utility model:

[0030] Please refer to Figures 1-7 , the denture fast firing furnace heating zone structure, including hearth 6, hearth 6 is hollow cylindrical structure, hearth 6 outside is equipped with heat preservation cylinder 5, hearth 6 and heat preservation cylinder 5 can all play the role of heat preservation and heat insulation.

[0031] Hearth 6 lower part inside is placed with bearing table 8, bearing table 8 upper part and hearth 6 lower part inside are all equipped with annular terraces that mutually cooperate, and the terraces of hearth 6 are supported on the terraces upside of bearing table 8. Bearing table 8 upside is placed with crucible 10, crucible 10 is placed with denture material, and crucible 10 can be stacked two layers, and bearing table 8 downside is equipped with tray 9, and bearing table 8 is placed on tray 9 upside.

[0032] Heat preservation cylinder 5 outside is equipped with shell 4, and shell 4 upper end has opening, and shell 4 lower wall middle part is equipped with through hole for bearing table 8 to pass through, and shell 4 lower wall is connected with annular bottom plate 7 through bolt, and bottom plate 7 surrounds bearing table 8, and bottom plate 7 is higher than tray 9.

[0033] The furnace 6 is placed with a ring-shaped cover plate 11 on the upper side, the inner diameter of the cover plate 11 is larger than the inner diameter of the furnace 6, the outer diameter of the cover plate 11 is larger than the outer diameter of the furnace 6, the heat preservation cylinder 5 is located below the edge of the cover plate 11, the cover plate 11 is attached to the inner side of the upper end of the shell 4, and the cover plate 11 also plays a role in heat preservation and heat insulation.

[0034] A hollow cylindrical heating rod 1 and an insulating plug 2 are arranged on the inner side of the upper part of the furnace 6; the crucible 10 is located inside the heating rod 1; the upper end of the supporting table 8 is located inside the lower end of the heating rod 1. The side wall of the heating rod 1 has two spiral heating bands 102, which are arranged alternately and connected at the bottom to form a double-spiral heating rod 1. The double-spiral heating rod 1 has a smaller resistance value than a single-spiral structure, has a high heating power under the same voltage, has a large temperature rise rate, and can quickly form a uniform temperature field in the furnace 6, thereby ensuring the sintering quality.

[0035] Two extension parts 101 are integrally and symmetrically connected to the upper side of the heating rod 1, the extension parts 101 pass through the plug 2, and the upper end of the extension parts 101 is connected to the conductive connector 3. The two extension parts 101 are respectively connected to the two spiral heating bands 102. The plug 2 is provided with a penetrating hole 201 for the extension parts 101 to pass through. Since the conductive connector 3 is stably connected to the upper end of the extension parts 101 of the heating rod 1, the penetrating hole 201 does not have to be tightly attached to the extension parts 101, and a small gap can be formed between the penetrating hole 201 and the extension parts 101 to adapt to the deformation phenomenon of the extension parts 101 caused by power heating. Moreover, the solid extension parts 101 have a smaller thermal deformation than the hollow cylindrical heating body.

[0036] The conductive connector 3 is connected to the upper end of the extension parts 101 by a bolt. The conductive connector 3 is L-shaped and is formed by bending a T-shaped plate structure, and the large end is connected to the extension parts 101 to ensure sufficient contact and power connection area. The conductive connector 3 is provided with through holes at both ends for the bolt to pass through, the through hole at one end of the conductive connector 3 is connected to the extension parts 101 by a bolt, and the through hole at the other end of the conductive connector 3 is connected to the power supply by a bolt. The cross section of the extension parts 101 is arc-shaped, and the end of the conductive connector 3 connected to the extension parts 101 is bent into a matching arc shape, and the conductive connector 3 is tightly combined with the extension parts 101 by a bolt to ensure stable power connection. Since the thermal expansion of the solid extension parts 101 is very small, the force area of the bolt connection is small, the thermal deformation is self-adapting, the damage to the bolt connection structure is small, and compared with the prior art, the damage to the conductive connection structure and the heating rod 1 can be effectively avoided.

[0037] The conductive connector 3 also plays a role in vertically limiting the heating rod 1 on the upper side of the extension parts 101. The heating rod 1 can be separated from the plug 2 only by removing the conductive connector 3. The lower end edge of the plug 2 is provided with a ring-shaped first step 202 matched with the upper end of the spiral heating band 102 of the heating rod 1, and the upper edge of the cylinder part of the heating rod 1 abuts against the lower side of the first step 202.

[0038] The upper outer side of the plug 2 is provided with an annular second step 203 matched with the upper end of the furnace 6, the lower side of the second step 203 is supported on the upper side of the upper end of the furnace 6, and the cover plate 11 surrounds the upper end of the plug 2.

[0039] The center of the plug 2 is provided with a vertical center hole 204, a thermocouple 12 can be arranged through the center hole 204, the lower end of the thermocouple 12 extends to the inner side of the barrel of the heating rod 1 and is located above the crucible 10, and the thermocouple 12 is used for detecting the temperature in the furnace 6.

[0040] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified without the need to pay the technical solutions described in the foregoing embodiments of the creative labor, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A heating zone structure for a denture rapid firing furnace, comprising a hollow cylindrical heating rod (1) and an insulating plug (2); characterized in that: The heating rod (1) is integrally connected with two extension parts (101) on the upside, the extension part (101) passes through the plug (2), and the upper end of the extension part (101) is connected with the conductive connector (3).

2. The denture fast firing furnace heating zone structure according to claim 1, characterized in that: The plug (2) is provided with a through hole (201) for the extension part (101) to pass through; the conductive connector (3) is connected with the upper end of the extension part (101) through bolts.

3. The denture fast firing furnace heating zone structure according to claim 2, characterized in that: The conductive connector (3) is L-shaped, and both ends of the conductive connector (3) are provided with through holes for the bolts to pass through.

4. The denture fast firing furnace heating zone structure according to claim 1, characterized in that: The lower end edge of the plug (2) is provided with a first step (202) matched with the heating rod (1); the plug (2) is provided with a thermocouple (12) in the center.

5. The denture fast firing furnace heating zone structure according to claim 1, characterized in that: The heating rod (1) comprises two spiral heating bands (102).

6. The denture flash furnace heating zone structure of claim 1 or 4, wherein: Further comprising a furnace (6), the outer side of the upper part of the plug (2) is provided with a second step (203) matched with the upper end of the furnace (6).

7. The denture fast firing furnace heating zone structure according to claim 6, characterized in that: The outer side of the furnace (6) is provided with a heat preservation cylinder (5); the upper side of the furnace (6) is provided with a ring-shaped cover plate (11) surrounding the upper end of the plug (2); the lower part of the furnace (6) is provided with a supporting table (8) on the inner side, the upper side of the supporting table (8) is provided with a crucible (10) for placing denture materials, and the lower side of the supporting table (8) is provided with a tray (9).

8. The denture fast firing furnace heating zone structure according to claim 7, characterized in that: The outer side of the heat preservation cylinder (5) is provided with an outer shell (4), the upper end of the outer shell (4) is provided with an opening; the lower wall of the outer shell (4) is provided with a through hole for the supporting table (8) to pass through, and the lower wall of the outer shell (4) is connected with a ring-shaped bottom plate (7) through bolts.

Images