Aluminum oxide ceramic sintering equipment capable of accelerating cooling

Abstract

The utility model discloses aluminum oxide ceramic sintering equipment capable of accelerating cooling, which comprises a sintering high-temperature chamber and a conveying belt arranged on one side of the sintering high-temperature chamber, a sagger is arranged in the sintering high-temperature chamber, and the sagger is taken out and placed on the conveying belt and moves along with the conveying belt to realize cooling. A cover is arranged on one side of the conveying belt and connected with a lifting mechanism, and the lifting mechanism drives the cover to move downwards, so that the cover seals the opening of the first containing cavity. Air passing holes are formed in the conveying belt, and a bottom blowing mechanism is arranged at the bottoms of the air passing holes. And the bottom blowing mechanism comprises a circulating liquid cooling pipe. Side blowing mechanisms are arranged on the two sides of the conveying belt. A top blowing mechanism is arranged on the top of the conveying belt. By arranging the multiple cooling sections including the natural cooling section, the forced cooling section, the side air blowing mechanism, the top air blowing mechanism and the bottom air blowing mechanism, rapid cooling after aluminum oxide ceramic sintering is achieved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering cooling device field, concretely is an alumina ceramic sintering equipment of accelerating cooling. BACKGROUND

[0002] Alumina ceramic in processing, mainly including forming, sintering, surface treatment three major processes, ceramic sintering refers to the body after forming is loaded into fixture, is put into high temperature room and is sintered, is cooled after sintering, then carries out surface treatment and completes processing. The cooling process after ceramic sintering is the main factor influencing ceramic quality, and both too fast and too slow cooling will cause quality problems. In the initial stage of ceramic cooling, slow cooling is needed to avoid surface cracking caused by excessive temperature difference, and rapid cooling is needed in the later stage of cooling to improve production efficiency. Since the sintering high-temperature chamber is in a long-term high-temperature state and will not be used for cooling, external equipment is used to cool it. The current cooling method mainly uses a cooling box, which can ensure product quality through intelligent control, but has low production efficiency and high cost, which is not conducive to mass production. SUMMARY

[0003] The utility model aims at providing an alumina ceramic sintering equipment for accelerating cooling to solve the problems of low cooling efficiency and difficult to guarantee ceramic quality after sintering.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an alumina ceramic sintering equipment for accelerating cooling, comprising a sintering high-temperature chamber, a conveyor belt arranged on one side of the sintering high-temperature chamber, and a sagger arranged in the sintering high-temperature chamber. The sagger is taken out, placed on the conveyor belt, and moved with the conveyor belt to achieve cooling.

[0005] As a further improvement of the above technical scheme:

[0006] The sagger comprises an inner ring, an outer ring, and a bottom plate. The top of the inner ring and the outer ring is connected, and the bottom plate is arranged at the bottom of the inner ring. The inner ring is divided into a first accommodating cavity and a second accommodating cavity by the bottom plate. The first accommodating cavity is used for containing the ceramic to be sintered. A first through hole is formed in the inner ring, and a second through hole is arranged on the bottom plate. A third accommodating cavity is arranged between the outer ring and the inner ring, and a third through hole is arranged on the side edge of the outer ring.

[0007] A cover is arranged on one side of the conveyor belt. The cover is connected with a lifting mechanism. The cover is driven downward by the lifting mechanism to close the opening of the first accommodating cavity.

[0008] An air passage is arranged on the conveyor belt. A bottom blowing mechanism is arranged at the bottom of the air passage.

[0009] The bottom blowing mechanism comprises a circulating liquid cooling pipe.

[0010] The conveying belt is provided with a side blowing mechanism on both sides.

[0011] The conveying belt is provided with a top blowing mechanism on the top.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The cooling efficiency is improved: by setting multiple cooling sections, including natural cooling sections and forced cooling sections, as well as side blowing mechanisms, top blowing mechanisms and bottom blowing mechanisms, rapid cooling of the sintered alumina ceramic is achieved, and the production efficiency is improved.

[0014] Prevent ceramic cracking: in the natural cooling section, the lifting mechanism controls the closure of the top opening of the sintering pot, effectively controls the cooling rate, and prevents the cracking phenomenon of the ceramic product caused by rapid cooling.

[0015] Simple structure, easy to operate: the device has reasonable structure design, easy to operate and maintain, and reduces the operation difficulty in the production process.

[0016] Improve the product pass rate: by accurately controlling the cooling process, the pass rate of the alumina ceramic product is improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic diagram of the present application;

[0018] Figure 2 It is a sintering pot structure schematic diagram one of the present application;

[0019] Figure 3 It is a sintering pot structure schematic diagram two of the present application;

[0020] Figure 4 It is a sintering pot structure schematic diagram three of the present application;

[0021] Figure 5 It is a cover structure schematic diagram of the present application;

[0022] Figure 6 It is a side blowing mechanism structure schematic diagram of the present application;

[0023] Figure 7 It is a top blowing mechanism structure schematic diagram of the present application;

[0024] Figure 8 It is a bottom blowing mechanism structure schematic diagram of the present application.

[0025] Reference numerals: 1. Sintering high-temperature chamber; 2. Conveyor belt; 21. Cover; 22. Lifting mechanism; 23. Air vent; 24. Bottom air blower mechanism; 25. Circulating liquid cooling pipe; 26. Side air blower mechanism; 27. Top air blower mechanism; 3. Sagger; 31. Inner ring; 311. First accommodating cavity; 312. Second accommodating cavity; 313. First through hole; 314. Second through hole; 32. Outer ring; 321. Third accommodating cavity; 322. Third through hole; 33. Bottom plate; 323. Fourth through hole. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1 As shown, the alumina ceramic sintering equipment for accelerated cooling in this embodiment includes a high-temperature sintering chamber 1 and a conveyor belt 2 disposed on one side of the high-temperature sintering chamber 1. A sagger 3 is disposed inside the high-temperature sintering chamber 1. Cooling is achieved by taking out the sagger 3, placing it on the conveyor belt 2, and moving with the conveyor belt 2.

[0031] As Figures 2 to 4 shown, the sagger 3 includes an inner ring 31, an outer ring 32 and a bottom plate 33, the inner ring 31 and the outer ring 32 are connected at the top, the bottom plate 33 is arranged at the bottom of the inner ring 31, the inner ring 31 is divided into a first accommodating cavity 311 and a second accommodating cavity 312 by the bottom plate 33, the first accommodating cavity 311 is used for containing ceramic to be sintered, a first through hole 313 is formed in the inner ring 31, a second through hole 314 is arranged on the bottom plate 33, a third accommodating cavity 321 is arranged between the outer ring 32 and the inner ring 31, and a third through hole 322 is arranged on the side edge of the outer ring 32. In order to improve the gas flow efficiency, a fourth through hole 323 is arranged at the top of the outer ring 32. The second accommodating cavity 321 and the third accommodating cavity 322 are used for placing alumina fiber cotton to ensure that the heat is unobstructed during sintering, and to prevent sintering powder from falling off.

[0032] As Figure 5 shown, the conveying belt 2 is provided with a cover 21 on one side, the cover 21 is connected with a lifting mechanism 22, the cover 21 is driven downward by the lifting mechanism 22, so that the cover 21 closes the opening of the first accommodating cavity 311. The lifting mechanism 22 is a linear drive mechanism here, which is used to drive the cover 21 to go up or down, and can be one of a telescopic air cylinder, a telescopic oil cylinder, a linear screw module, a synchronous belt and the like, which can drive the cover 21 to go down to cover the top opening of the sagger 3. This is the first cooling section, mainly for natural cooling, to prevent cracking of the ceramic product caused by rapid cooling during the cooling process. By controlling the movement of the cover 21 to cover the main heat dissipation port at the top of the sagger 3, the cooling rate can be effectively controlled, and the opening and closing time can be adjusted to improve the cooling efficiency and ensure the quality of the ceramic product. In order to facilitate the smooth flow of air, air holes 23 are arranged on the conveying belt 2 for air inlet and outlet.

[0033] As Figure 6 shown, side blowing mechanisms 26 are arranged on both sides of the conveying belt 2. The side blowing mechanisms 26 adopt fans, which can be arranged on both sides or only one side. If arranged on both sides, the fans are arranged in different positions, i.e. staggered, to avoid air flow disorder.

[0034] As Figure 7 shown, a top blowing mechanism 27 is arranged on the top of the conveying belt 2. The top is the top of the sagger 3, air is supplied from the top to cool the materials in the sagger 3.

[0035] As Figure 8 shown, a bottom blowing mechanism 24 is arranged at the bottom of the air hole 23. The bottom blowing mechanism 24 includes a circulating liquid cooling pipe 25. The bottom blowing mechanism 24 is the last forced cooling process here, the cold energy in the circulating liquid cooling pipe 25 is blown into the sagger 3 by the bottom blowing mechanism 24 to achieve cooling.

[0036] It should be noted that the position sequence of the side blowing mechanism 26, the top blowing mechanism 27 and the bottom blowing mechanism 24 in the embodiment can be changed, the embodiment only shows one cooling sequence, the cooling sequence can be adjusted according to the needs, and meanwhile, the top blowing mechanism 27 and the side blowing mechanism 26 can also be provided with cooling mechanisms, which can be air conditioners, liquid cooling pipes and the like, and any cooling source structure can be provided.

[0037] Meanwhile, the sagger 3 on the conveying belt 2 adopts multi-process flow operation, the cooling of multiple sagger 3 can be carried out at the same time, and multiple conveying belts 2 can be adopted to improve the production efficiency.

[0038] The above is only the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described in detail. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. An alumina ceramic sintering device for accelerated cooling, characterized in that: It includes a sintering high temperature chamber (1) and a conveyor belt (2) set on one side of the sintering high temperature chamber (1). A saggar (3) is set inside the sintering high temperature chamber (1). The saggar (3) is taken out and placed on the conveyor belt (2) and cooled by moving with the conveyor belt (2).

2. The alumina ceramic sintering equipment for accelerated cooling according to claim 1, characterized in that: The sagger (3) includes an inner ring (31), an outer ring (32), and a bottom plate (33). The tops of the inner ring (31) and the outer ring (32) are connected. The bottom plate (33) is located at the bottom of the inner ring (31). The inner ring (31) is divided into a first accommodating cavity (311) and a second accommodating cavity (312) by the bottom plate (33). The first accommodating cavity (311) is used to hold the ceramic to be sintered. A first through hole (313) is provided on the inner ring (31). A second through hole (314) is provided on the bottom plate (33). A third accommodating cavity (321) is provided between the outer ring (32) and the inner ring (31). A third through hole (322) is provided on the side of the outer ring (32).

3. The alumina ceramic sintering equipment for accelerated cooling according to claim 2, characterized in that: A cover (21) is provided on one side of the conveyor belt (2). The cover (21) is connected to a lifting mechanism (22). The lifting mechanism (22) drives the cover (21) to move downward, so that the cover (21) closes the opening of the first accommodating cavity (311).

4. The alumina ceramic sintering equipment for accelerated cooling according to claim 3, characterized in that: The conveyor belt (2) is provided with an air passage (23), and a bottom blower mechanism (24) is provided at the bottom of the air passage (23).

5. The alumina ceramic sintering equipment for accelerated cooling according to claim 4, characterized in that: The bottom air blower mechanism (24) includes a circulating liquid cooling pipe (25).

6. The alumina ceramic sintering equipment for accelerated cooling according to claim 1, characterized in that: Side blower mechanisms (26) are provided on both sides of the conveyor belt (2).

7. The alumina ceramic sintering equipment for accelerated cooling according to claim 1, characterized in that: The top of the conveyor belt (2) is provided with a top blower mechanism (27).

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