CN215572139U

CN215572139U - Zirconia crystallization furnace

Info

Publication number: CN215572139U
Application number: CN202121950562.4U
Authority: CN
Inventors: 王小强
Original assignee: Shanghai Yishang Denture Technology Co ltd
Current assignee: Shanghai Yishang Denture Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-01-18
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a zirconium oxide crystallization furnace, which relates to the technical field of crystallization furnaces and comprises the following components: the lower end of the upper machine body is provided with an operating platform, heat dissipation holes are formed in two sides of the operating platform, and a metal base is fixed at the bottom end of the operating platform; a table provided on an upper end surface of the operation table; the body slot is arranged on the inner side surface of the upper body, and a heating furnace body is fixed on the inner side of the upper body; the electric telescopic rod is arranged on the inner upper surface of the upper machine body, and a supporting plate is fixed at the lower end of the electric telescopic rod; and the placing plate is fixed at the other end of the supporting plate. The zirconia crystallization furnace is provided with four heating rods made of silicon-molybdenum materials, and a silicon dioxide passivation layer can be formed on the surface at high temperature to prevent further oxidation. Be applied to high temperature anti-oxidation coating material, it is very fast to heat up, and surface oxidation layer is high temperature resistant corrosion-resistant, and heating efficiency is higher, and four heating rod surrounding type heats, avoid heating inhomogeneous to lead to the zirconia fracture.

Description

Zirconia crystallization furnace

Technical Field

The utility model relates to the technical field of false tooth processing, in particular to a zirconium oxide crystallization furnace.

Background

A denture is an artificial tooth, also called a denture, that replaces a missing natural tooth. The basic condition of the total denture repair is to ensure the retention, stability and bearing of the total denture. Retention refers to the ability of the denture to resist the intraoral vertical dislocation of the total denture, and is related to the adsorption force and the atmospheric pressure; the stable refers to the force of the artificial tooth resisting the horizontal and the rotation, the bearing force refers to the enough tissue structure supporting the whole artificial tooth, mainly including the upper and lower jaw alveolar bones, and the like, which are mutually related. The zirconium dioxide full-porcelain tooth has the advantages of firmness, wear resistance, vivid appearance color and luster and the like. In the process of producing the zirconium dioxide all-ceramic tooth, a crystallizing furnace is needed to sinter the zirconium dioxide, so that the formed zirconium dioxide has bright color and does not generate the adverse phenomena of cracks and the like.

Zirconia crystallization furnace on the market adopts single heating rod to heat the sintering to the zirconia in the furnace body usually in use, and the base revolution mechanic that can additionally adopt of some complicacies still heats like this and can make zirconia be heated unevenly on the heating table, and the heating part can cool off rapidly in the position of keeping away from the heat source, produces the crack easily, for this reason, we propose zirconia crystallization furnace.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a zirconia crystallization furnace, which solves the problems that when a zirconia crystallization furnace in the market proposed in the background art is used, a single heating rod is usually adopted to heat and sinter zirconia in a furnace body, a base rotating structure is additionally adopted in a complex mode, so that the zirconia is heated unevenly on a heating table, and a heating part is rapidly cooled at a position far away from a heat source, so that cracks are easily generated.

In order to achieve the purpose, the utility model provides the following technical scheme: a zirconia crystallization furnace comprising:

the lower end of the upper machine body is provided with an operating platform, heat dissipation holes are formed in two sides of the operating platform, and a metal base is fixed at the bottom end of the operating platform;

a table provided on an upper end surface of the operation table;

the body slot is arranged on the inner side surface of the upper body, and a heating furnace body is fixed on the inner side of the upper body;

the electric telescopic rod is arranged on the inner upper surface of the upper machine body, and a supporting plate is fixed at the lower end of the electric telescopic rod;

the mounting plate is fixed at the other end of the supporting plate, and a driven gear is rotatably mounted in the middle of the mounting plate;

The supporting rod is connected to the middle of the driven gear, and a heating seat is fixed at the top end of the supporting rod;

the transmission gear is meshed and connected to one side of the driven gear, the lower end of the transmission gear is connected to the upper end of the placing plate, and the other side of the transmission gear is meshed and connected with a driving gear;

a micro motor embedded at one end of the supporting plate;

a heating rod installed inside the heating furnace body;

the furnace body is provided with grooves which are symmetrically arranged on one side surface of the heating furnace body.

Preferably, the heating furnace body is of a hollow structure, the heating rods are symmetrically arranged around the central axis of the heating furnace body, and the heating rods are made of molybdenum disilicide.

Preferably, the furnace body slot and the machine body slot are parallel to each other, the support plate penetrates through the furnace body slot, and the support plate penetrates through the machine body slot.

Preferably, the placing plate and the electric telescopic rod form a telescopic structure through the supporting plate, and the placing plate coincides with the central axis of the heating furnace body.

Preferably, the transmission gear forms a rotating structure with the micro motor through the driving gear, and forms a rotating structure with the transmission gear through the driven gear, and the heating seat forms a rotating structure with the driven gear through the supporting rod.

Preferably, the heating furnace body is further provided with:

and the refractory fiber inner container is arranged at the innermost layer of the heating furnace body.

Preferably, the material of the refractory fiber inner container is an alumina material, and the outer surface of the refractory fiber inner container is tightly attached to the inner surface of the heating furnace body.

Compared with the prior art, the utility model has the beneficial effects that: the zirconia crystallization furnace is provided with four heating rods made of silicon-molybdenum materials, and a silicon dioxide passivation layer can be formed on the surface at high temperature to prevent further oxidation. Be applied to high temperature anti-oxidation coating material, it is very fast to heat up, and surface oxidation layer is high temperature resistant corrosion-resistant, and heating efficiency is higher, and four heating rod surrounding type heats, avoid heating inhomogeneous to lead to the zirconia fracture.

The arranged micro motor drives the driving gear to rotate, so that the driving gear meshed with the driving gear and the driven gear meshed with the driving gear rotate, the driven gear drives the supporting rod and the heating seat to rotate, the heating seat rotates in the heating furnace body to be heated, the zirconium oxide in the heating seat is uniformly heated by the fully-enclosed heating, the heat radiation received by the zirconium oxide is more stable, the sintering effect is improved, and cracks caused by unstable or nonuniform heating are avoided; the mounting plate that sets up goes up and down through electric telescopic handle's flexible, and the position of mounting plate remains throughout with the axis coincidence of heating furnace body, makes the heating seat of mounting plate upper end connection heat at the most intensive position of heat radiation, promotes heat utilization efficiency, avoids heating inhomogeneous.

The arranged supporting plate slides in the furnace body slot and the machine body slot through the extension and retraction of the electric telescopic rod, so that the supporting plate can drive the heating seat on the placing plate to move up and down, the loading and unloading are convenient, the moving track of the supporting plate is fixed, the position deviation cannot be generated, and the reduction of sintering efficiency caused by the instability of the heating position is avoided; the refractory fiber inner bag that sets up is the alumina material, and heat preservation heat-proof quality is better, can avoid the heat excessively to scatter and disappear at the heating furnace body intensification in-process, promotes heating efficiency, maintains the heat accumulation in the heating furnace body, reduces the energy resource consumption, and the alumina layer on surface has high oxidation resistance, can avoid zirconia to change colour in the refractory fiber inner bag.

Drawings

FIG. 1 is a schematic perspective view of a crystallization furnace according to the present invention;

FIG. 2 is a schematic view of a front perspective structure of the upper body of the present invention in a state without a furnace body;

FIG. 3 is a schematic sectional perspective view of a heating furnace body according to the present invention;

fig. 4 is a schematic perspective view of the internal structure of the upper body according to the present invention.

In the figure: 1. mounting the machine body; 2. an operation table; 3. a work table; 4. heat dissipation holes; 5. a metal base; 6. heating the furnace body; 7. slotting of the machine body; 8. an electric telescopic rod; 9. a support plate; 10. placing a plate; 11. a driven gear; 12. a strut; 13. a heating base; 14. a transmission gear; 15. a driving gear; 16. a micro motor; 17. a heating rod; 18. a refractory fiber inner container; 19. and (4) grooving the furnace body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a zirconia crystallization furnace comprising: the device comprises an upper machine body 1, wherein an operation table 2 is arranged at the lower end of the upper machine body 1, heat dissipation holes 4 are formed in two sides of the operation table 2, and a metal base 5 is fixed at the bottom end of the operation table 2; a table 3 provided on an upper end surface of the operation table 2; the body slot 7 is arranged on the inner side surface of the upper body 1, and a heating furnace body 6 is fixed on the inner side of the upper body 1; a heating rod 17 installed inside the heating furnace body 6; the heating furnace body 6 is of a hollow structure, the heating rods 17 are symmetrically arranged around the central axis of the heating furnace body 6, and the heating rods 17 are made of molybdenum disilicide; four silicon-molybdenum heating rods 17 are arranged in the heating furnace body 6, and a silicon dioxide passivation layer can be formed on the surface at high temperature to prevent further oxidation; the four heating rods 17 are used for circularly heating, so that zirconium oxide cracking caused by nonuniform heating is avoided; the furnace body slots 19 are symmetrically arranged on one side surface of the heating furnace body 6; a refractory fiber inner container 18 provided in the innermost layer of the heating furnace body 6; the refractory fiber liner 18 is made of alumina, and the outer surface of the refractory fiber liner 18 is tightly attached to the inner surface of the heating furnace body 6; the refractory fiber inner bag 18 that sets up is the alumina material, and heat preservation heat-proof quality is better, can avoid the heat excessively to scatter and disappear at the heating furnace body 6 intensification in-process, promotes heating efficiency, maintains the heat accumulation in the heating furnace body 6, reduces the energy resource consumption, and the alumina layer on surface has high oxidation resistance, can avoid zirconia to discolour in the refractory fiber inner bag 18.

Referring to fig. 4, the present invention provides a technical solution: a zirconia crystallization furnace comprising: the electric telescopic rod 8 is arranged on the inner upper surface of the upper machine body 1, and a supporting plate 9 is fixed at the lower end of the electric telescopic rod 8; the furnace body slot 19 and the machine body slot 7 are parallel to each other, the supporting plate 9 penetrates through the furnace body slot 19, and the supporting plate 9 penetrates through the machine body slot 7; the arranged supporting plate 9 slides in the furnace body slot 19 and the machine body slot 7, so that the supporting plate 9 can drive the heating seat 13 on the placing plate 10 to move up and down, the loading and unloading are convenient, the movement track of the supporting plate 9 is fixed, the position deviation cannot be generated, and the reduction of sintering efficiency caused by the instability of the heating position is avoided; the placing plate 10 is fixed at the other end of the supporting plate 9, and a driven gear 11 is rotatably arranged in the middle of the placing plate 10; the placing plate 10 and the electric telescopic rod 8 form a telescopic structure through the supporting plate 9, and the placing plate 10 is superposed with the central axis of the heating furnace body 6; the arranged placing plate 10 is lifted through the expansion and contraction of the electric telescopic rod 8, and the position of the placing plate 10 is always kept to be coincident with the central axis of the heating furnace body 6, so that the heating seat 13 connected to the upper end of the placing plate 10 can heat at the position with the most intensive heat radiation, the heat utilization efficiency is improved, and the uneven heating is avoided; a supporting rod 12 connected to the middle part of the driven gear 11, and a heating seat 13 is fixed at the top end of the supporting rod 12; a transmission gear 14 which is engaged with one side of the driven gear 11, the lower end of the transmission gear 14 is connected with the upper end of the setting plate 10, and the other side of the transmission gear 14 is engaged with a driving gear 15; a micro motor 16 embedded at one end of the supporting plate 9; the transmission gear 14 forms a rotating structure through the space between the driving gear 15 and the micro motor 16, the driven gear 11 forms a rotating structure through the space between the transmission gear 14, and the heating seat 13 forms a rotating structure through the space between the support rod 12 and the driven gear 11; the micro motor 16 that sets up drives driving gear 15 and rotates to make drive gear 14 with driving gear 15 meshing and rotate with drive gear 14 meshed driven gear 11, make driven gear 11 drive branch 12 and heating seat 13 and rotate, heating seat 13 is heated in 6 rotations of heating furnace body, the zirconia of full enclosed heating messenger in the heating seat 13 is heated evenly, the thermal radiation that receives is more stable, promote the sintering effect, avoid producing the crackle because of heating unstability or inhomogeneous.

The working principle is as follows: for the zirconia crystallization furnace, firstly, an upper machine body 1 and an operation platform 2 are arranged on a stable horizontal working surface in a working environment through a metal base 5, then, the operation platform 2 is operated to extend an electric telescopic rod 8, the electric telescopic rod 8 drives a supporting plate 9 and a placing plate 10 to descend, so that a supporting rod 12 and a heating seat 13 which are arranged on a driven gear 11 fall onto the operation platform 3, zirconia which needs sintering crystallization treatment is put into the heating seat 13, then, the electric telescopic rod 8 is retracted, the supporting plate 9 slides in a furnace body slot 19 and a machine body slot 7, the heating seat 13 is retracted into a heating furnace body 6, then, a heating rod 17 is started to heat the heating furnace body 6, after the heating furnace body 6 is heated, a micro motor 16 is started to drive a driving gear 15 to rotate, the driving gear 15 drives a transmission gear 14 to drive the driven gear 11 to rotate, and the heating seat 13 rotates on the placing plate 10 through the driving supporting rod 12, the zirconia that makes four heating rods 17 that are the circumference form and install in heating furnace body 6 in to heating seat 13 evenly heats steadily, and the heat is pinned by the fire-resistant fiber inner bag 18 of the inside packing of heating furnace body 6 in heating furnace body 6, fire-resistant fiber inner bag 18 comprises alumina fiber, the heat loses less, it is fast to heat up, after the sintering is accomplished at last, the telescopic link makes heating seat 13 whereabouts, the staff of being convenient for takes out the zirconia that has processed, partial heat that this crystallization furnace during operation produced can be scattered out through louvre 4 that the operation panel 2 both sides were seted up.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Zirconia crystallization furnace, characterized by comprising:

the device comprises an upper machine body (1), wherein the lower end of the upper machine body (1) is provided with an operating table (2), heat dissipation holes (4) are formed in two sides of the operating table (2), and a metal base (5) is fixed at the bottom end of the operating table (2);

a table (3) provided on the upper end surface of the operation table (2);

the machine body groove (7) is formed in the inner side surface of the upper machine body (1), and a heating furnace body (6) is fixed on the inner side of the upper machine body (1);

the electric telescopic rod (8) is arranged on the upper surface of the inner part of the upper machine body (1), and a supporting plate (9) is fixed at the lower end of the electric telescopic rod (8);

the mounting plate (10) is fixed to the other end of the supporting plate (9), and a driven gear (11) is rotatably mounted in the middle of the mounting plate (10);

The support rod (12) is connected to the middle of the driven gear (11), and a heating seat (13) is fixed at the top end of the support rod (12);

the transmission gear (14) is meshed and connected to one side of the driven gear (11), the lower end of the transmission gear (14) is connected to the upper end of the placing plate (10), and the other side of the transmission gear (14) is meshed and connected with a driving gear (15);

a micro motor (16) embedded at one end of the supporting plate (9);

a heating rod (17) mounted inside the heating furnace body (6);

the furnace body slots (19) are symmetrically arranged on one side surface of the heating furnace body (6).

2. The zirconia crystallization furnace of claim 1, wherein: the structure of heating furnace body (6) is hollow structure, and heating rod (17) set up about the axis position symmetry of heating furnace body (6) to the material of heating rod (17) is molybdenum disilicide material.

3. The zirconia crystallization furnace of claim 1, wherein: the furnace body slot (19) and the machine body slot (7) are parallel to each other, the supporting plate (9) penetrates through the inside of the furnace body slot (19), and the supporting plate (9) penetrates through the inside of the machine body slot (7).

4. The zirconia crystallization furnace of claim 1, wherein: the placing plate (10) forms a telescopic structure with the electric telescopic rod (8) through the supporting plate (9), and the placing plate (10) coincides with the central axis position of the heating furnace body (6).

5. The zirconia crystallization furnace of claim 1, wherein: the transmission gear (14) and the micro motor (16) form a rotating structure through the driving gear (15), the driven gear (11) and the transmission gear (14) form a rotating structure, and the heating seat (13) and the driven gear (11) form a rotating structure through the supporting rod (12).

6. The zirconia crystallization furnace of claim 1, wherein: the heating furnace body (6) is also provided with:

and a refractory fiber inner container (18) disposed on the innermost layer of the heating furnace body (6).

7. The zirconia crystallization furnace of claim 6, wherein: the refractory fiber inner container (18) is made of alumina, and the outer surface of the refractory fiber inner container (18) is tightly attached to the inner surface of the heating furnace body (6).