CN218821638U

CN218821638U - Baking device for full-porcelain teeth

Info

Publication number: CN218821638U
Application number: CN202223315372.2U
Authority: CN
Inventors: 杨继忠; 李亚玲; 李吉海
Original assignee: Quanzhou Bojun Chenggong Ceramic Tooth Co ltd
Current assignee: Quanzhou Bojun Chenggong Ceramic Tooth Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-07
Anticipated expiration: 2032-12-06

Abstract

The application relates to a baking device for all-ceramic teeth, which comprises a furnace platform for bearing a crucible, wherein the crucible is used for containing all-ceramic teeth to be sintered, a plurality of first convex blocks are arranged on the surface of the furnace platform, the crucible is arranged on the first convex blocks, and gaps for inserting flat rods are formed among the first convex blocks; a cover matched with the crucible is arranged above the crucible, second convex blocks are arranged on the upper surface of the cover, and gaps for the flat rods to insert are formed among the second convex blocks. In this application, after the sintering of full porcelain tooth was accomplished, the staff inserted the clearance between first lug or the second lug with flat pole after, the staff upwards lifts and makes flat pole and the lower surface looks butt of crucible. The staff rethread crucible pincers are supplementary, will contain the crucible of full porcelain tooth from the stove platform transfer to the workstation on. Thereby improving the stability of the stacked crucibles during transfer.

Description

Baking device for full-porcelain teeth

Technical Field

The application relates to the technical field of all-ceramic tooth manufacturing, in particular to a baking device for all-ceramic teeth.

Background

The full-ceramic tooth, also called full-ceramic crown, is a ceramic restoration body which covers the surface of the full dental crown and does not contain a metal inner crown. Compared with the porcelain tooth, the full porcelain tooth is made of high-strength porcelain materials with the color similar to that of the tooth instead of metal, so that the porcelain tooth is more attractive than a metal substrate porcelain restoration body. At present, all-ceramic teeth are widely used in clinic, and are often selected particularly for aesthetic restoration of anterior teeth.

When producing the full porcelain tooth, a baking device is needed to sinter the full porcelain tooth.

The existing baking device adopts a common lifting structure, a crucible containing all porcelain teeth is lifted upwards by a lifting platform of the baking device and is sent into a heating cavity, and a heating mechanism positioned on the upper part of the heating cavity sinters the all porcelain teeth.

In order to fully utilize the space of the furnace chamber to improve the production efficiency, a worker stacks a plurality of crucibles on a lifting platform of the baking device and puts the plurality of crucibles into the furnace chamber together.

However, in the process of stacking or removing the crucible, particularly, the process of removing the crucible, the cover and the crucible of the crucible need to be removed by the crucible tongs after sintering, and the worker needs to operate in a small space under the furnace chamber of the baking apparatus. When using crucible tongs, the staff can make the crucible of piling up take place to empty, and leads to the full porcelain tooth in the crucible to drop, causes unnecessary economic loss.

SUMMERY OF THE UTILITY MODEL

When taking off the crucible that piles up, in order to make things convenient for the staff to take off the crucible, reduce the possibility that full porcelain tooth emptys the drop, this application provides a baking equipment for full porcelain tooth.

The application provides a baking equipment for making perfect porcelain tooth adopts following technical scheme:

a baking device for all-ceramic teeth comprises a furnace platform for bearing a crucible, wherein the crucible is used for containing all-ceramic teeth to be sintered, a plurality of first convex blocks are arranged on the surface of the furnace platform, the crucible is arranged on the first convex blocks, and gaps for flat rods to be inserted are formed among the first convex blocks; a cover matched with the crucible is arranged above the crucible, second convex blocks are arranged on the upper surface of the cover, and gaps for the flat rods to insert are formed among the second convex blocks.

Through adopting above-mentioned technical scheme, after the sintering of full porcelain tooth was accomplished, the staff inserted the clearance between first lug or the second lug with flat pole after, the staff upwards lifts and makes flat pole and the lower surface looks butt of crucible. The staff again through the assistance of crucible tongs, will contain the crucible of full porcelain tooth from the stove top transfer to the workstation on. Thereby improving the stability of the crucible transfer after stacking.

Optionally, the first protrusion is disposed along an outer periphery of the crucible.

Through adopting above-mentioned technical scheme, along the peripheral stability that the first lug that sets up of crucible improves the crucible and places. Meanwhile, when the crucible is placed on the first bump by a worker, the crucible can be accurately placed in the middle of the furnace body through the auxiliary positioning of the first bump, and the uniformity of the full porcelain tooth during sintering is improved.

Optionally, a first groove is formed in the middle of the first bump.

Through adopting above-mentioned technical scheme, through set up first recess on first lug, the gas of first recess is heated expansion or cooling shrinkage for atmospheric pressure in the first recess is less than external atmospheric pressure. Thereby improving the stability between the crucible and the first bump.

Optionally, a second groove is formed in the middle of the second bump.

By adopting the technical scheme, the second groove is formed in the second protruding block, so that a worker can clamp the side wall of the groove of the second groove with the crucible tongs to lift the cover upwards and move the cover outwards. So as to enlarge the gap between the cover and the crucible and facilitate the opening of the cover by the staff.

Optionally, the side and the upper surface of the furnace platform are provided with a plurality of through seams.

By adopting the technical scheme, when the crucible and the full-ceramic teeth are sintered in the furnace chamber, the temperature can be transmitted to the ground of the crucible through the through seams of the side edge and the upper surface of the furnace platform, so that the heating uniformity of the crucible is improved, and the sintering quality of the full-ceramic teeth is improved.

Optionally, the upper surface of the first bump is a rough surface.

By adopting the technical scheme, the upper surface of the first bump is set to be a rough surface so as to reduce the possibility of sliding of the crucible.

Optionally, a first notch is formed in the upper side wall of the crucible, and a second notch corresponding to the first notch is formed in the cover.

By adopting the scheme, when the crucible is taken down from the furnace platform, a user can drive the cover, so that the first notch corresponds to the second notch, and the crucible is the same as the external atmosphere. So that the sintered all-ceramic tooth is slowly cooled. The situation that the quality of the full-ceramic tooth is reduced due to the fact that the full-ceramic tooth is too massive or is cooled too slowly is reduced.

Optionally, the crucible and the cover are provided with corresponding auxiliary lines, and the auxiliary lines are used for judging the relative position between the first notch and the second notch.

By adopting the technical scheme, the cover position can be conveniently adjusted by workers, and the first notch and the second notch are staggered during sintering. When the all-ceramic tooth needs to be cooled, the first gap is communicated with the second gap part. By observing the reference line, the working errors of workers are reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. gaps are formed between the crucible and between the crucible and the furnace platform by arranging the first lug and the second lug, so that when the bottom of the crucible is heated, a worker can extend the flat rod into the gap between the first lug and the second lug to lift and transfer the crucible upwards, thereby reducing the influence on the crucible at the lower layer and reducing the possibility of inclination of the crucible;

2. through the through groove arranged on the furnace platform, the heating condition of the bottom of the crucible is improved, and thus the sintering quality of the full porcelain tooth is improved;

through setting up first breach and second breach, be favorable to the cooling rate of staff control full porcelain tooth to improve the sintering quality of full porcelain tooth.

Drawings

FIG. 1 is a schematic view showing the structure of a roasting apparatus in example 1.

FIG. 2 is a schematic view showing the positional relationship between the crucible and the hearth in example 1.

Fig. 3 is a schematic view showing a flat bar structure in example 1.

FIG. 4 is a schematic view showing the structure of the crucible and the lid in example 1.

FIG. 5 is a schematic view showing the structure of the crucible and the lid in example 2.

FIG. 6 is a schematic view showing the structure of the crucible and the lid in example 3.

Description of reference numerals: 1. a heating mechanism; 2. a furnace chamber; 3. a control system; 41. a cross bar; 42. a lifting platform; 43. a through groove; 5. a furnace platform; 51. a first bump; 52. a first groove; 6. a crucible; 61. a first notch; 7. a cover; 71. a second bump; 72. a second groove; 73. a second notch; 8. c, through sewing; 9. rough surface; 10. an auxiliary line; 11. a flat rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a baking device for full porcelain teeth. Referring to fig. 1, the baking apparatus for full porcelain teeth includes a heating mechanism 1, a furnace chamber 2, and a crucible 6 for holding full porcelain teeth.

The heating mechanism 1 is arranged at the upper part of the baking device, the baking device is provided with a furnace chamber 2 below the heating mechanism 1, the heating mechanism 1 contains a heating wire, and the furnace chamber 2 can be heated after the heating wire is electrified. The heating mechanism 1 is used for heating the crucible 6 and the all-ceramic tooth which are sent into the furnace chamber 2, so that the all-ceramic tooth blank is sintered into the all-ceramic tooth which can be installed.

The baking apparatus further comprises a lifting table 42 below the heating assembly, and a furnace table 5 above the lifting table 42, the furnace table 5 being used for holding the crucible 6. The side of the baking device is provided with a through groove 43, the bottom of the lifting platform 42 is provided with a cross rod 41, and the cross rod 41 is connected with the lifting mechanism after penetrating through the through groove 43. The lifting mechanism lifts the furnace platform 5 and the crucible 6 upwards through the cross rod 41 and sends the furnace platform and the crucible into the furnace chamber 2.

After the operator places the crucible 6 with the full porcelain teeth on the furnace platform 5, the lifting device lifts the furnace platform 5 and the crucible 6 upwards and sends the crucible into the furnace chamber 2. Thereafter, the heating mechanism 1 of the baking apparatus heats the crucible 6 and the all-ceramic tooth in the furnace chamber 2. The temperature is transferred into the crucible 6 through the crucible 6, and the all-ceramic tooth is sintered.

The lifting mechanism adopts an electric lifting rod, and the lifting mechanism can also adopt other devices with lifting functions, such as a screw rod, a sliding table and the like.

Referring to fig. 2 and 3, in the present embodiment, the crucible 6 has a flat cylindrical shape. A plurality of first bumps 51 are arranged on the furnace platform 5, the first bumps 51 are circumferentially arranged, and the virtual outer peripheral surface surrounded by the first bumps 51 is flush with the outer peripheral surface of the crucible 6, so that the uniformity of heating at the bottom of the crucible 6 is improved; the flat rod 11 can be conveniently inserted into the gap of the first lug 51 by workers, and the crucible 6 on the furnace platform 5 can be conveniently transferred by the workers.

Referring to fig. 2, a first groove 52 is formed in the middle of the first protrusion 51, and when the full porcelain tooth is sintered, a part of gas in the first groove 52 is heated, collided and discharged; when heating is stopped, the gas in the first groove 52 shrinks.

After the lifting mechanism lowers the furnace platform 5 and the crucible 6 from the furnace chamber 2, the air pressure of the first groove 52 is smaller than the external air pressure, so that the connection between the crucible 6 and the furnace platform 5 is enhanced, and the risk that the crucible 6 at the lower layer falls off due to disturbance when the crucible 6 is transferred is reduced.

Referring to fig. 2 and 4, the cover 7 of the crucible 6 is also provided with a second protrusion 71, the first protrusion 51 is also circumferentially arranged, and a virtual outer surface surrounded by the second protrusion 71 is smaller than the outer peripheral surface of the crucible 6, and the second protrusion 71 is used for bearing the crucible 6 of the previous layer. The second projections 71 leave a space for the flat rod 11 to be inserted, so that the worker can transfer the upper crucible 6.

The second protrusion 71 has a second groove 72 formed in the middle thereof, and the worker can clamp the crucible 6 to the groove side wall of the second groove 72 to separate the cover 7 from the crucible 6, so that a portion of the crucible 6 protrudes outward to be lapped on the crucible 6, thereby facilitating the worker to clamp the upper and lower surfaces of the cover 7 with the crucible 6 to remove the cover 7.

Referring to fig. 2, in order to further improve the heating condition of the bottom of the crucible 6, the sintering quality of the all-ceramic tooth is improved. A plurality of through-slits 8 are provided on the side and upper surface of the hearth 5, and the through-slits 8 are provided between the first protrusions 51. So as to transmit the temperature to the lower surface of the crucible 6 through the through slit 8 and improve the uniformity of heating of the crucible 6.

The implementation principle of the baking device for the full-porcelain teeth in the embodiment of the application is as follows:

the staff pours the sintering bead into in the crucible 6, puts the full porcelain tooth embryo that needs the sintering on the sintering bead again, and the sintering bead is used for the position of fixed full porcelain tooth for the periphery of full porcelain tooth is full of the clearance, with the homogeneity of being heated that improves full porcelain tooth.

After the worker covers the cover 7 of the crucible 6, the plurality of crucibles 6 are stacked on the first projection 51 of the hearth 5, and the position of the crucible 6 is adjusted so as to be in the middle of the hearth 5.

Then, the worker controls the lifting mechanism to lift upwards through the control system 3, and sends the crucible 6 into the furnace chamber 2 for heating. After the heating is finished, the worker controls the lifting mechanism to move through the control system 3, so that the crucible 6 is separated from the furnace chamber 2.

The operator inserts the flat rod 11 into the gap between the second protrusions 71 to clamp the crucible 6 against the sidewall of the crucible 6, thereby improving the stability of the crucible 6 during the transfer. The worker lifts the flat bar 11 upward to separate the crucible 6 from the lower crucible 6, thereby reducing the influence on the lower crucible 6 while transferring the upper crucible 6 to a work bench beside the baking apparatus. Similarly, the worker moves away the crucibles 6 of each layer in turn.

Example 2:

referring to fig. 6, the upper surfaces of the first and

second protrusions

51 and 71 are each provided with a rough surface 9, which enhances frictional force between the crucible 6 and the hearth 5, and between the crucible 6 and the crucible 6, thereby reducing the possibility of sliding of the crucible 6.

Example 3:

referring to fig. 6, in the present embodiment, the upper sidewall of the crucible 6 is provided with a first notch 61, and the cover 7 is provided with a second notch 73 corresponding to the first notch 61. The staff can adjust the area that link up mutually between first breach 61 and the second breach 73 through adjusting the relative position of lid 7 and crucible 6 to make full porcelain tooth cool off gradually, avoid too fast or too slow cooling rate, thereby improve the effect of toasting of full porcelain tooth.

When the sintering of the all-ceramic tooth is completed, the cooling is also a critical stage, and in actual production, an extreme cooling rate (too fast or too slow) should be avoided. Too rapid cooling can lead to cracking or cracking (thermal shock) of the surface; very slow cooling (e.g., furnace cooling) can cause leucite to evolve from the all-ceramic tooth, increasing the overall coefficient of thermal expansion of the ceramic, causing cracks or fractures in the surface.

In order to facilitate the control of the area of the through-connection between the first notch 61 and the second notch 73 by the operator. An auxiliary line 10 is also provided on the crucible 6 and the lid 7. The worker can adjust the relative position between the lid 7 and the crucible 6 by means of the auxiliary thread 10, thereby achieving a gradual enlargement of the area through which the first notch 61 and the second notch 73 communicate. The baking effect of the full-porcelain tooth is improved.

The implementation principle of the baking device for the all-ceramic tooth in the embodiment of the application is as follows:

in the staff can stretch into second recess 72 with the pointed end of 6 pincers of crucible, rotate lid 7 through 6 pincers of crucible to adjust the area of intercommunication between first breach 61 and the second breach 73, thereby change the cooling rate of full porcelain tooth gradually, improve the effect of full porcelain tooth sintering.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a baking equipment for making perfect porcelain tooth, is including stove top (5) that are used for bearing crucible (6), crucible (6) are used for holding the full porcelain tooth that needs the sintering, its characterized in that: the surface of the furnace platform (5) is provided with a plurality of first bumps (51), the crucible (6) is arranged on the first bumps (51), and gaps for the flat rods (11) to insert are arranged among the first bumps (51); a cover (7) matched with the crucible (6) is arranged above the crucible (6), second convex blocks (71) are arranged on the upper surface of the cover (7), and gaps for the flat rods (11) to insert are formed among the second convex blocks (71).

2. The roasting apparatus for the all porcelain teeth according to claim 1, wherein: the first projection (51) is disposed along an outer periphery of the crucible (6).

3. The roasting apparatus for the all porcelain teeth according to claim 1, wherein: the middle part of the first bump (51) is provided with a first groove (52).

4. The roasting apparatus for full porcelain teeth according to claim 1, wherein: and a second groove (72) is formed in the middle of the second bump (71).

5. The roasting apparatus for full porcelain teeth according to claim 1, wherein: the side edge and the upper surface of the furnace platform (5) are provided with a plurality of through seams (8).

6. The roasting apparatus for full porcelain teeth according to claim 1, wherein: the upper surface of the first bump (51) is a rough surface (9).

7. The roasting apparatus for the all porcelain teeth according to claim 1, wherein: the side wall of the crucible (6) is provided with a first notch (61), and the cover (7) is provided with a second notch (73) corresponding to the first notch (61).

8. The roasting apparatus for full porcelain teeth according to claim 7, wherein: the crucible (6) and the cover (7) are provided with corresponding auxiliary lines (10), and the auxiliary lines (10) are used for judging the relative position between the first notch (61) and the second notch (73).