Zirconium oxide high-temperature sintering furnace for false tooth production

Abstract

The utility model discloses a zirconium oxide high-temperature sintering furnace for false tooth production, which relates to the field of zirconium oxide sintering furnaces and comprises an operation table, a sintering box is fixedly connected to the top of the operation table, a fan is slidably connected to the top of the operation table, a placing seat is slidably connected to the top of the operation table, and a mold is arranged at the top of the placing seat. By arranging the cleaning assembly, the inner wall of the sintering box can be automatically cleaned after the sintering process is finished or when cleaning is needed, so that zirconium oxide powder and impurities attached to the inner wall of the sintering box are effectively removed, the complexity and low efficiency of manual cleaning are avoided, the cleaning efficiency is greatly improved, and the labor cost is reduced; in addition, a lifting plate is pushed to move up and down through a second electric push rod, a sliding rod is driven to slide in a sleeve, and then the height of a fan is adjusted, so that flowing of hot air in the sintering furnace is better controlled, temperature distribution is more uniform, the false tooth quality problem caused by uneven temperature is reduced, and the consistency and stability of false tooth sintering are improved.

Description

Technical Field

[0001] This utility model relates to the field of zirconia sintering furnace technology, and in particular to a high-temperature zirconia sintering furnace for denture production. Background Technology

[0002] Zirconia all-ceramic crowns are artificial dentures made by sintering zirconia powder at high temperatures. Zirconia all-ceramic crowns have many advantages such as being strong and wear-resistant, having a realistic appearance, and good biocompatibility. Moreover, because they do not contain metal, they do not irritate the gums and do not cause allergic reactions. Therefore, zirconia all-ceramic restoration is a popular trend in international cosmetic dental restoration and is currently a hot topic in the international dental market.

[0003] In existing high-temperature zirconia sintering furnaces used for denture production, zirconia powder and other impurities can adhere to and accumulate on the inner wall of the sintering chamber during the sintering process. These residues not only affect the quality of the subsequently sintered dentures, causing defects and dimensional deviations on the denture surface, but may also shorten the service life of the sintering furnace and increase equipment maintenance costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a zirconia high-temperature sintering furnace for denture production.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a zirconia high-temperature sintering furnace for denture production, including an operating table, a sintering box fixedly connected to the top of the operating table, a fan slidably connected to the top of the operating table, a placement seat slidably connected to the top of the operating table, a mold set on the top of the placement seat, a cleaning component for cleaning the sintering box set on the top of the operating table, and a quick-release component for disassembling the mold set on the outer wall of the placement seat;

[0008] The cleaning assembly includes symmetrically formed grooves on the top of the operating table. A sleeve is fixedly connected inside the groove. A gear is rotatably connected to the outer wall of the sleeve via a bearing. A second groove is symmetrically formed inside the sintering box. A cleaning strip is slidably connected to the inner side of the second groove. A second rack is symmetrically fixedly connected to the cleaning strip near the gear. The second rack meshes with the outer wall of the gear. A drive assembly for driving the gear to rotate is provided inside the operating table.

[0009] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, the driving assembly includes a first groove symmetrically formed inside the operating table, the outer wall of the placement seat is slidably connected to the inner side of the first groove, a first rack is symmetrically fixedly connected to the outer wall of the placement seat, the outer wall of the first rack is meshed with the outer wall of the gear, a first electric push rod is symmetrically fixedly connected inside the first groove, the output end of the first electric push rod is fixedly connected to the outer wall of the placement seat, and an adjustment assembly for adjusting the height of the fan is provided at the bottom of the operating table.

[0010] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, the adjusting component includes a second electric push rod symmetrically and fixedly connected to the bottom of the operating table. A lifting plate is fixedly connected to the output end of the second electric push rod. A sliding rod is symmetrically and fixedly connected to the top of the lifting plate. The outer wall of the sliding rod is slidably connected to the inside of the sleeve. The top of the sliding rod is fixedly connected to the bottom of the fan.

[0011] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, the quick-release assembly includes symmetrically fixedly connected locking strips to the bottom of the mold, symmetrically provided unlocking holes on the outer wall of the placement seat, a sliding hole provided on the side of the locking strip near the unlocking hole, a locking block slidably connected inside the sliding hole, a limiting spring sleeved on the outer wall of the locking block, the outer wall of the locking block engaging with the inside of the unlocking hole, and a positioning assembly for quickly positioning the mold provided on the top of the placement seat.

[0012] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, the positioning component includes positioning grooves symmetrically opened on the top of the placement seat, the outer wall of the mold is slidably connected to the inner side of the positioning groove, and locking grooves are symmetrically opened on the top of the placement seat.

[0013] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, a support frame is fixedly connected to the top of the operating table, a drive cylinder is fixedly connected to the top of the support frame, and a pressure template is fixedly connected to the output end of the drive cylinder.

[0014] In a preferred embodiment of the zirconia high-temperature sintering furnace for denture production described in this utility model, the bottom of the operating table is symmetrically and fixedly connected with two support legs, and the bottom of each support leg is fixedly connected with an anti-slip pad.

[0015] (III) Beneficial Effects

[0016] This invention provides a high-temperature sintering furnace for denture production using zirconia. It has the following beneficial effects:

[0017] 1. By setting up a cleaning component, the inner wall of the sintering chamber can be automatically cleaned after the sintering process or when cleaning is required, thereby effectively removing the zirconium oxide powder and impurities adhering to the inner wall of the sintering chamber. This avoids the tediousness and inefficiency of manual cleaning, greatly improves cleaning efficiency, and reduces labor costs. In addition, the second electric push rod pushes the lifting plate up and down, causing the slide rod to slide in the sleeve, thereby adjusting the height of the fan. This better controls the flow of hot air inside the sintering furnace, making the temperature distribution more uniform, reducing denture quality problems caused by uneven temperature, and improving the consistency and stability of denture sintering.

[0018] 2. By setting up a quick-release component, when the mold needs to be disassembled, simply apply external force to the locking block through the unlocking hole to overcome the elasticity of the limit spring, allowing the locking block to disengage from the unlocking hole and easily remove the mold from the placement base. During installation, align the locking strip at the bottom of the mold with the corresponding position on the placement base, and the locking block will automatically engage with the unlocking hole under the action of the limit spring, completing the mold installation. The whole process is simple and quick, greatly shortening the mold changeover time and improving production efficiency. In addition, the design of the positioning groove provides a clear guide for mold installation. When installing the mold, the operator only needs to slide the outer wall of the mold along the positioning groove to quickly and accurately place the mold in the correct position, avoiding sintering quality problems caused by mold placement deviation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0022] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a structural schematic diagram of the positioning component of this utility model.

[0024] Figure 5 This is a structural schematic diagram of the quick-release component of this utility model.

[0025] In the diagram, 1. Operating table; 2. Sintering box; 3. Fan; 4. Placement seat; 5. Mold; 6. Cleaning component; 601. Groove; 602. Sleeve; 603. Gear; 604. Second groove; 605. Cleaning strip; 606. Second rack; 7. Drive component; 701. First groove; 702. First rack; 703. First electric push rod; 8. Adjustment component; 801. Second electric push rod; 802. Lifting plate; 803. Slide rod; 9. Quick release component; 901. Locking strip; 902. Unlocking hole; 903. Sliding hole; 904. Locking block; 905. Limiting spring; 906. Positioning component; 9061. Positioning groove; 9062. Locking groove; 10. Support frame; 11. Drive cylinder; 12. Pressing template; 13. Support foot. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Example 1

[0028] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This is the first embodiment of the present invention, which provides a zirconia high-temperature sintering furnace for denture production, including an operating table 1, a sintering box 2 fixedly connected to the top of the operating table 1, a fan 3 slidably connected to the top of the operating table 1, a placement seat 4 slidably connected to the top of the operating table 1, a mold 5 disposed on the top of the placement seat 4, a cleaning component 6 for cleaning the sintering box 2 disposed on the top of the operating table 1, and a quick-release component 9 for disassembling the mold 5 disposed on the outer wall of the placement seat 4. The cleaning component 6 includes components symmetrically arranged on the top of the operating table 1. The groove 601 has a sleeve 602 fixedly connected inside it. The outer wall of the sleeve 602 is rotatably connected to a gear 603 via a bearing. The sintering box 2 has a second groove 604601 symmetrically opened inside. A cleaning strip 605 is slidably connected to the inner side of the second groove 604601. A second rack 606 is symmetrically fixedly connected to the side of the cleaning strip 605 near the gear 603. The second rack 606 meshes with the outer wall of the gear 603. The operating table 1 is equipped with a drive assembly 7 for driving the gear 603 to rotate.

[0029] Specifically, the drive assembly 7 includes a first groove 701601 symmetrically formed inside the operating table 1. The outer wall of the placement seat 4 is slidably connected to the inner side of the first groove 701601. A first rack 702 is symmetrically fixedly connected to the outer wall of the placement seat 4. The outer wall of the first rack 702 meshes with the outer wall of the gear 603. A first electric push rod 703 is symmetrically fixedly connected inside the first groove 701601. The output end of the first electric push rod 703 is fixedly connected to the outer wall of the placement seat 4. An adjustment assembly 8 for adjusting the height of the fan 3 is provided at the bottom of the operating table 1. The adjustment assembly 8 includes symmetrically fixed... A second electric push rod 801 is attached to the bottom of the operating table 1. A lifting plate 802 is fixedly connected to the output end of the second electric push rod 801. A slide rod 803 is symmetrically fixedly connected to the top of the lifting plate 802. The outer wall of the slide rod 803 is slidably connected to the inside of the sleeve. The top of the slide rod 803 is fixedly connected to the bottom of the fan 3. A support frame 10 is fixedly connected to the top of the operating table 1. A drive cylinder 11 is fixedly connected to the top of the support frame 10. A pressure plate 12 is fixedly connected to the output end of the drive cylinder 11. Two support feet 13 are symmetrically fixedly connected to the bottom of the operating table 1. Anti-slip pads are fixedly connected to the bottom of the support feet 13.

[0030] Furthermore, when sintering is complete and cleaning of the sintering chamber 2 is required, the first electric push rod 703 is activated. The output end of the first electric push rod 703 begins to extend, pushing the placement seat 4 into the sintering chamber 2 within the first groove 701601. Since the outer wall of the placement seat 4 is symmetrically and fixedly connected to the first rack 702, and the outer wall of the first rack 702 meshes with the outer wall of the gear 603, as the placement seat 4 moves, the first rack 702 drives the gear 603 to rotate around the sleeve 602. Immediately afterwards, the rotation of the gear 603 drives the second rack 606, which meshes with it, to move. The second rack 606 is fixedly connected to the cleaning strip 605, so the cleaning strip 605 slides within the second groove 604601. During the sliding process, the surface of the cleaning strip 605 contacts the inner wall of the sintering chamber 2, scraping off the zirconium oxide powder and impurities adhering to the inner wall, thus achieving automatic cleaning of the sintering chamber 2.

[0031] Example 2

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The quick-release component 9 includes a locking strip 901 that is symmetrically fixedly connected to the bottom of the mold 5. The outer wall of the placement base 4 is symmetrically provided with unlocking holes 902. The locking strip 901 is provided with a sliding hole 903 on the side near the unlocking hole 902. A locking block 904 is slidably connected inside the sliding hole 903. A limiting spring 905 is sleeved on the outer wall of the locking block 904. The outer wall of the locking block 904 is engaged with the inside of the unlocking hole 902. A positioning component 906 for quickly positioning the mold 5 is provided on the top of the placement base 4.

[0033] Specifically, the positioning component 906 includes positioning grooves 9061 symmetrically opened on the top of the placement seat 4, the outer wall of the mold 5 is slidably connected to the inner side of the positioning grooves 9061, and locking grooves 9062 are symmetrically opened on the top of the placement seat 4.

[0034] Furthermore, when it is necessary to install mold 5, the operator picks up mold 5 and aligns the outer wall of mold 5 with the symmetrically opened positioning groove 9061 on the top of the placement seat 4. As mold 5 is slowly placed into the placement seat 4, mold 5 slides down along the positioning groove 9061. As mold 5 continues to slide down in the positioning groove 9061, the symmetrically fixed locking strips 901 at the bottom of mold 5 are gradually inserted into the corresponding slots on the placement seat 4. During the insertion of locking strips 901, locking blocks 904 are squeezed by the inner wall of the slot of the placement seat 4, overcoming the elastic force of the limiting spring 905, and slide into the sliding hole 903. At this time, the limiting spring 905 is compressed and stores elastic potential energy. When locking strips 901 are fully inserted, locking blocks 904 are exactly aligned with the unlocking hole 902 on the outer wall of the placement seat 4. Under the action of the elastic potential energy of the limiting spring 905, locking blocks 904 automatically pop out from the sliding hole 903 and lock into the unlocking hole 902, realizing the locking of locking blocks 904 and unlocking holes 902.

[0035] Working principle: When sintering is complete and cleaning of the sintering chamber 2 is required, the first electric push rod 703 is activated. The output end of the first electric push rod 703 extends, pushing the placement seat 4 into the sintering chamber 2 within the first groove 701601. Since the outer wall of the placement seat 4 is symmetrically fixedly connected to the first rack 702, and the outer wall of the first rack 702 meshes with the outer wall of the gear 603, as the placement seat 4 moves, the first rack 702 drives the gear 603 to rotate around the sleeve 602. Then, the rotation of the gear 603 drives the second rack 606, which meshes with it, to move. The second rack 606 is fixedly connected to the cleaning strip 605, so the cleaning strip 605 slides within the second groove 604601. During the sliding process, the surface of the cleaning strip 605 contacts the inner wall of the sintering chamber 2, scraping off the zirconium oxide powder and impurities adhering to the inner wall, thus achieving automatic cleaning of the sintering chamber 2.

[0036] When mold 5 needs to be installed, the operator picks up mold 5 and aligns the outer wall of mold 5 with the symmetrically opened positioning groove 9061 on the top of the placement seat 4. As mold 5 is slowly placed into the placement seat 4, it slides down along the positioning groove 9061. As mold 5 continues to slide down in the positioning groove 9061, the symmetrically fixed locking strips 901 at the bottom of mold 5 are gradually inserted into the corresponding slots on the placement seat 4. During the insertion of locking strips 901, locking blocks 904 are squeezed by the inner wall of the slot of the placement seat 4, overcoming the elastic force of the limiting spring 905, and slide into the sliding hole 903. At this time, the limiting spring 905 is compressed and stores elastic potential energy. When locking strips 901 are fully inserted, locking blocks 904 are exactly aligned with the unlocking hole 902 on the outer wall of the placement seat 4. Under the action of the elastic potential energy of the limiting spring 905, locking blocks 904 automatically pop out from the sliding hole 903 and lock into the unlocking hole 902, realizing the locking of locking blocks 904 and unlocking holes 902.

[0037] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A zirconia high-temperature sintering furnace for denture production, comprising an operating table (1), a sintering box (2) fixedly connected to the top of the operating table (1), a fan (3) slidably connected to the top of the operating table (1), a placement seat (4) slidably connected to the top of the operating table (1), and a mold (5) disposed on the top of the placement seat (4), characterized in that: The top of the operating table (1) is provided with a cleaning component (6) for cleaning the sintering box (2), and the outer wall of the placement seat (4) is provided with a quick-release component (9) for disassembling the mold (5). The cleaning component (6) includes grooves (601) symmetrically opened on the top of the operating table (1). A sleeve (602) is fixedly connected inside the groove (601). A gear (603) is rotatably connected to the outer wall of the sleeve (602) through a bearing. A second groove (604) (601) is symmetrically opened inside the sintering box (2). A cleaning strip (605) is slidably connected to the inner side of the second groove (604) (601). A second rack (606) is symmetrically fixedly connected to the cleaning strip (605) on the side near the gear (603). The second rack (606) meshes with the outer wall of the gear (603). A drive component (7) for driving the gear (603) to rotate is provided inside the operating table (1).

2. The zirconia high-temperature sintering furnace for denture production according to claim 1, characterized in that: The drive assembly (7) includes a first groove (701) (601) symmetrically opened inside the operating table (1). The outer wall of the placement seat (4) is slidably connected to the inner side of the first groove (701) (601). A first rack (702) is symmetrically fixedly connected to the outer wall of the placement seat (4). The outer wall of the first rack (702) meshes with the outer wall of the gear (603). A first electric push rod (703) is symmetrically fixedly connected inside the first groove (701) (601). The output end of the first electric push rod (703) is fixedly connected to the outer wall of the placement seat (4). An adjustment assembly (8) for adjusting the height of the fan (3) is provided at the bottom of the operating table (1).

3. The zirconia high-temperature sintering furnace for denture production according to claim 2, characterized in that: The adjustment assembly (8) includes a second electric push rod (801) symmetrically fixedly connected to the bottom of the operating table (1). The output end of the second electric push rod (801) is fixedly connected to a lifting plate (802). The top of the lifting plate (802) is symmetrically fixedly connected to a slide rod (803). The outer wall of the slide rod (803) is slidably connected to the inside of the sleeve. The top of the slide rod (803) is fixedly connected to the bottom of the fan (3).

4. The zirconia high-temperature sintering furnace for denture production according to claim 1, characterized in that: The quick-release assembly (9) includes a locking strip (901) symmetrically fixedly connected to the bottom of the mold (5). The outer wall of the placement base (4) is symmetrically provided with unlocking holes (902). The locking strip (901) is provided with a sliding hole (903) on the side near the unlocking hole (902). A locking block (904) is slidably connected inside the sliding hole (903). A limiting spring (905) is sleeved on the outer wall of the locking block (904). The outer wall of the locking block (904) is engaged with the inside of the unlocking hole (902). The top of the placement base (4) is provided with a positioning assembly (906) for quickly positioning the mold (5).

5. A high-temperature sintering furnace for denture production according to claim 4, characterized in that: The positioning component (906) includes positioning grooves (9061) symmetrically opened on the top of the placement seat (4), the outer wall of the mold (5) is slidably connected to the inner side of the positioning groove (9061), and the top of the placement seat (4) is symmetrically opened with locking grooves (9062).

6. The zirconia high-temperature sintering furnace for denture production according to claim 1, characterized in that: The top of the operating table (1) is fixedly connected to a support frame (10), the top of the support frame (10) is fixedly connected to a drive cylinder (11), and the output end of the drive cylinder (11) is fixedly connected to a pressure template (12).

7. The zirconia high-temperature sintering furnace for denture production according to claim 1, characterized in that: The bottom of the operating table (1) is symmetrically and fixedly connected to two support feet (13), and the bottom of the support feet (13) is fixedly connected to an anti-slip pad.

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