Feeding mechanism for pre-sintering zirconium oxide ceramic block green body

Abstract

The utility model discloses a feeding mechanism for presintering zirconium oxide ceramic block blanks, which comprises a zirconium oxide ceramic sintering furnace, a base is arranged at the bottom of the zirconium oxide ceramic sintering furnace, a die is arranged at the top of the base, a material storage barrel is arranged on one side of the zirconium oxide ceramic sintering furnace, and a feeding hopper is arranged on the other side of the zirconium oxide ceramic sintering furnace. A fixed cover is arranged at the top of the material storage barrel, a brushless motor is arranged at the position, located in the center of the material storage barrel, of the top of the fixed cover, the output end of the brushless motor extends out of the bottom of the fixed cover, a center column is arranged at the output end of the brushless motor, and a plurality of stirring rods are arranged on the outer surface of the center column; a disc is arranged in the position, below the center column, of the material storage barrel, and a round hole is formed in the center of the disc. According to the utility model, a series of structures are arranged, zirconium oxide powder and other additives are fully stirred and mixed before feeding and then are put into a mold, manual material mixing is not needed, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of zirconia ceramic blocks, in particular to a feeding mechanism for pre-sintering a zirconia ceramic block blank. Background Art

[0002] Zirconium porcelain is a ceramic with zirconium oxide as the main component. It has excellent properties such as high melting point and boiling point, high hardness, being an insulator at room temperature and being conductive at high temperature. It is white in color. In the sintering process of zirconia ceramics, it is first necessary to mix the zirconium oxide powder with other additives in a certain proportion and then put it into a mold for heating and sintering. In particular, when making zirconium oxide into the ceramic block required for dentures, a specific mold is also required.

[0003] The existing feeding mechanism for pre-sintering zirconia ceramic block bodies is mostly a simple hopper structure, which requires manual mixing of zirconia powder and other additives in a certain proportion before feeding. This method is inefficient and difficult to stir because the powder has stable performance, which easily leads to uneven stirring and poor agglomeration effect. Utility Model Content

[0004] The utility model aims to provide a feeding mechanism for pre-sintering a zirconia ceramic block green body, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding mechanism for pre-sintering a zirconia ceramic block blank, comprising a zirconia ceramic sintering furnace, a base is provided at the bottom of the zirconia ceramic sintering furnace, a mold is provided on the top of the base, a material storage barrel is provided on one side of the zirconia ceramic sintering furnace, a fixed cover is provided on the top of the material storage barrel, a brushless motor is provided at the top of the fixed cover at the center of the material storage barrel, the output end of the brushless motor extends out of the bottom of the fixed cover, a center column is provided at the output end of the brushless motor, a plurality of stirring rods are provided on the outer surface of the center column, a disc is provided inside the material storage barrel below the center column, a circular hole is provided at the center position of the disc, two opening and closing plates are provided at the position of the circular hole at the bottom end of the disc, and a hopper is provided through the center position of the bottom end of the material storage barrel.

[0006] Preferably, a movable cover is hingedly installed on one side of the fixed cover. Before pre-sintering the zirconia ceramic block, the movable cover is turned over to open the top of the storage barrel, and then the zirconia powder and other additives are poured into the storage barrel in a certain proportion.

[0007] Preferably, a bracket is provided on the outer surface of the material storage barrel, and the end of the bracket is fixedly mounted on a side surface of the zirconia ceramic sintering furnace. The bracket installs the material storage barrel at a predetermined position so that the material storage barrel and the mold have a certain height difference to facilitate feeding.

[0008] Preferably, two limit blocks are commonly connected to the two sides of the two opening and closing plates, and lower baffles are provided at the bottom edge positions of the two opening and closing plates. The two opening and closing plates are limited by the limit blocks to facilitate relative linear movement of the two opening and closing plates, so that the material above the disc falls into the hopper, and the two lower baffles guide the falling trajectory of the material to prevent the material from sticking to the surface of the opening and closing plates.

[0009] Preferably, electric push rods are provided at the bottom rear ends of the two opening and closing plates, and mounting frames are provided at the output ends and fixed ends of the two electric push rods. The top ends of the mounting frames provided at the output ends of the two electric push rods are installed at the bottom end of the opening and closing plates, and the top ends of the fixed mounting frames of the two electric push rods are installed at the bottom end of the disc. The model of the electric push rods is JC7. When the material above the disc is fully stirred, the two electric push rods pull the opening and closing plates toward the two ends of the disc for linear motion, opening the circular hole, and the material will pass through the circular hole and fall into the hopper.

[0010] Preferably, the bottom of the hopper is located above the mold, and when the material falls into the hopper, the material passes through the hopper and falls into the mold to achieve a feeding effect.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the present application is used, first pour the zirconium oxide powder and other additives into the storage barrel in a certain proportion, then close the movable cover, turn on the brushless motor, drive the central column to drive several stirring rods to stir the material, so that the zirconium oxide powder and other additives are fully mixed. When the material is stirred and mixed, the two electric push rods pull the opening and closing plate to the two ends of the disc for linear motion, open the circular hole, and the material will pass through the circular hole and fall into the hopper. The material falls into the mold through the hopper to complete the feeding. After the feeding is completed, the top of the mold is sealed, and then it is moved to the position of the heating element for heating. Before feeding, the zirconium oxide powder and other additives are stirred and mixed thoroughly, and when they are put into the mold, there is no need to manually mix the materials, thereby improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the material storage barrel in the utility model in a disassembled state;

[0015] Figure 3 It is a schematic diagram of the disc structure of the utility model.

[0016] In the figure: 1. zirconia ceramic sintering furnace; 2. base; 3. mold; 4. bracket; 5. storage barrel; 6. movable cover; 7. fixed cover; 8. hopper; 9. brushless motor; 10. center column; 11. stirring rod; 12. disc; 13. opening and closing plate; 14. limit block; 15. electric push rod; 16. mounting frame; 17. lower baffle. DETAILED DESCRIPTION

[0017] 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.

[0018] like Figures 1 to 3 As shown, the present application includes a zirconia ceramic sintering furnace 1, a base 2 is provided at the bottom of the zirconia ceramic sintering furnace 1, a mold 3 is provided on the top of the base 2, the mold 3 can perform linear movement on the top of the base 2, and the top of the mold 3 is sealed after the feeding is completed, and then it is moved to the position of the heating element for heating, and then heated, a material storage barrel 5 is provided on one side of the zirconia ceramic sintering furnace 1, a fixed cover 7 is provided on the top of the material storage barrel 5, a brushless motor 9 is provided at the top of the fixed cover 7 at the center of the material storage barrel 5, the output end of the brushless motor 9 extends out of the bottom of the fixed cover 7, the output end of the brushless motor 9 is provided with a central column 10, and the outer surface of the central column 10 is provided with a plurality of stirring rods 11 The model of the brushless motor 9 is 24-DEC2430. After the zirconium oxide powder and other additives are poured into the storage barrel 5 in a certain proportion, the brushless motor 9 is turned on to drive the central column 10 to drive a number of stirring rods 11 to stir the materials so that the zirconium oxide powder and other additives are fully mixed. A disc 12 is arranged inside the storage barrel 5 below the central column 10, and a circular hole is arranged at the center of the disc 12. Two opening and closing plates 13 are arranged at the circular hole position at the bottom end of the disc 12. When the material is stirred and mixed, the two opening and closing plates 13 are opened to allow the material to pass through the circular hole. A hopper 8 is arranged through the center position of the bottom end of the storage barrel 5, and the material falls directly into the hopper 8 after passing through the circular hole.

[0019] Specifically, a movable cover plate 6 is hingedly installed on one side of the fixed cover 7. Before pre-sintering the zirconia ceramic block, the movable cover plate 6 is turned over, the top of the storage barrel 5 is opened, and then the zirconia powder and other additives are poured into the storage barrel 5 in a certain proportion.

[0020] Furthermore, a bracket 4 is provided on the outer surface of the storage barrel 5, and the end of the bracket 4 is fixedly mounted on the side surface of the zirconia ceramic sintering furnace 1. The bracket 4 installs the storage barrel 5 at a predetermined position so that the storage barrel 5 and the mold 3 have a certain height difference to facilitate feeding.

[0021] Furthermore, two limit blocks 14 are commonly connected to the two sides of the two opening and closing plates 13. Lower baffles 17 are provided at the bottom edge positions of the two opening and closing plates 13. The two opening and closing plates 13 are limited by the limit blocks 14 to facilitate relative linear movement of the two opening and closing plates 13, so that the material above the disc 12 falls into the hopper 8. The two lower baffles 17 guide the falling trajectory of the material to prevent the material from sticking to the surface of the opening and closing plates 13.

[0022] Furthermore, electric push rods 15 are provided at the bottom rear ends of the two opening and closing plates 13, and mounting frames 16 are provided at the output ends and fixed ends of the two electric push rods 15. The top ends of the mounting frames 16 provided at the output ends of the two electric push rods 15 are installed at the bottom end of the opening and closing plates 13, and the top ends of the fixed mounting frames 16 of the two electric push rods 15 are installed at the bottom end of the disc 12. The model of the electric push rods 15 is JC7. When the material above the disc 12 is fully stirred, the two electric push rods 15 pull the opening and closing plates 13 toward the two ends of the disc 12 for linear motion, open the circular hole, and the material will pass through the circular hole and fall into the hopper 8.

[0023] Furthermore, the bottom of the hopper 8 is located above the mold 3. When the material falls into the hopper 8, the material will pass through the hopper 8 and fall into the mold 3 to achieve the feeding effect.

[0024] The method of use of this embodiment is as follows: before pre-sintering the zirconia ceramic block, move the mold 3 to the bottom of the hopper 8, flip the movable cover 6, open the top of the storage barrel 5, and then pour the zirconium oxide powder and other additives into the storage barrel 5 in a certain proportion, then close the movable cover 6, turn on the brushless motor 9, drive the central column 10 to drive a number of stirring rods 11 to stir the material so that the zirconium oxide powder and other additives are fully mixed. When the material is stirred and mixed, the two electric push rods 15 pull the opening and closing plate 13 to the two ends of the disc 12 for linear motion, open the circular hole, and the material will pass through the circular hole and fall into the hopper 8. The material falls into the mold 3 through the hopper 8 to complete the feeding. After the feeding is completed, the top of the mold 3 is sealed and then moved to the position of the heating element for heating.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A feeding mechanism for pre-sintering a zirconia ceramic block, comprising a zirconia ceramic sintering furnace (1), characterized in that: A base (2) is provided at the bottom of the zirconia ceramic sintering furnace (1), a mold (3) is provided at the top of the base (2), a material storage barrel (5) is provided on one side of the zirconia ceramic sintering furnace (1), a fixed cover (7) is provided at the top of the material storage barrel (5), a brushless motor (9) is provided at the top of the fixed cover (7) at the center of the material storage barrel (5), the output end of the brushless motor (9) extends out of the bottom of the fixed cover (7), a central column (10) is provided at the output end of the brushless motor (9), a plurality of stirring rods (11) are provided on the outer surface of the central column (10), a disc (12) is provided inside the material storage barrel (5) below the central column (10), a circular hole is provided at the center of the disc (12), two opening and closing plates (13) are provided at the position of the circular hole at the bottom end of the disc (12), and a hopper (8) is provided at the center of the bottom end of the material storage barrel (5).

2. The feeding mechanism for pre-sintering a zirconia ceramic block according to claim 1, characterized in that: A movable cover plate (6) is hingedly mounted on one side of the fixed cover (7).

3. The feeding mechanism for pre-sintering a zirconia ceramic block according to claim 1, characterized in that: The outer surface of the material storage barrel (5) is provided with a bracket (4), and the end of the bracket (4) is fixedly mounted on a side surface of the zirconia ceramic sintering furnace (1).

4. The feeding mechanism for pre-sintering a zirconia ceramic block according to claim 1, characterized in that: Two limit blocks (14) are commonly connected to the two sides of the two opening and closing plates (13), and lower baffles (17) are arranged at the bottom edge positions of the two opening and closing plates (13).

5. The feeding mechanism for pre-sintering a zirconia ceramic block according to claim 1, characterized in that: The bottom rear ends of the two opening and closing plates (13) are both provided with electric push rods (15), and the output ends and fixed ends of the two electric push rods (15) are both provided with mounting frames (16), the top ends of the mounting frames (16) provided at the output ends of the two electric push rods (15) are mounted on the bottom end of the opening and closing plates (13), and the top ends of the fixed mounting frames (16) of the two electric push rods (15) are mounted on the bottom end of the disc (12).

6. The feeding mechanism for pre-sintering a zirconia ceramic block according to claim 1, characterized in that: The bottom of the hopper (8) is located above the mold (3).

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