Heating device for microwave dielectric ceramic material synthesis

Abstract

The invention relates to the technical field of ceramic production, in particular to a heating device for microwave dielectric ceramic material synthesis, which comprises a base, a microwave oven and a box door, the microwave oven is arranged on the top of the base, the box door is arranged on the front side of the microwave oven, and the heating device is arranged in the microwave oven. The heating device comprises a rotating mechanism, a clamping mechanism, a shifting mechanism and a discharging mechanism, the rotating mechanism is arranged in the microwave oven, the clamping mechanism is arranged at the top of the rotating mechanism, the shifting mechanism is arranged at the top of the rotating mechanism, and the discharging mechanism is arranged at the lower end in the microwave oven. According to the heating device for synthesis of the microwave dielectric ceramic material, by arranging the rotating mechanism, when the powder ceramic material is subjected to microwave heating, the crucible can rotate around the rotating shaft, and meanwhile, the supporting plate drives the crucible to rotate, so that all parts of the powder ceramic material fully receive microwave radiation, and the heating quality of the ceramic material is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic production, in particular to a heating device for synthesizing microwave dielectric ceramic materials. Background Art

[0002] At present, most of the microwave sintering of ceramic materials is single sintering, which has low efficiency. When multiple sintering is carried out, it is difficult to ensure uniform heating, which in turn affects the sintering quality. Due to special phenomena such as microwave selective absorption and power redistribution in the microwave heating process, the temperature and heat storage in different areas inside the product will be uneven due to changes in composition, structure, and size, resulting in thermal stress. For products with complex shapes, problems such as asynchronous cooling in the same direction, synchronous shrinkage in different directions, and asynchronous shrinkage in different directions will occur, causing thermal stress concentration and crack damage to the product.

[0003] Therefore, how to optimize and improve the supporting heating and insulation structure and heating method, regulate the thermal field pattern, achieve balanced distribution of thermal fields in different areas of ceramic sintering, and promote large-scale dense sintering of products in different areas is a difficult problem faced by the field of microwave sintering ceramics.

[0004] For example, a microwave heating device and a microwave sintering method for batch sintering of ceramic materials disclosed in announcement number CN118532928A can simultaneously place multiple crucibles, thereby being able to sinter multiple ceramic materials; through the sintering method, the ceramic materials can be heated as evenly as possible.

[0005] However, when the device is heating the ceramic material, the ceramic material on the outside receives less microwave radiation intensity than the ceramic material on the inside, resulting in uneven heating of the ceramic material, thereby affecting the heating quality of the ceramic material.

[0006] Therefore, we urgently need to provide a heating device for synthesizing microwave dielectric ceramic materials. Summary of the Invention

[0007] The object of the present invention is to provide a heating device for synthesizing microwave dielectric ceramic materials to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a heating device for synthesizing microwave dielectric ceramic materials, comprising a base, a microwave oven and a cabinet door, wherein the microwave oven is installed on the top of the base, the cabinet door is installed on the front of the microwave oven, and a heating device is provided inside the microwave oven, wherein the heating device comprises a rotating mechanism, a clamping mechanism, a material discharging mechanism and a material discharging mechanism.

[0009] The rotating mechanism is arranged inside the microwave oven, the clamping mechanism is arranged on the top of the rotating mechanism, the material-discharging mechanism is arranged on the top of the rotating mechanism, and the material-discharging mechanism is arranged at the lower end inside the microwave oven.

[0010] The rotating mechanism includes a motor, a rotating shaft, a rotating platform, a support leg, a fixed rod, a large gear, a support shaft, a small gear, a support plate, a crucible and a block. The motor is installed at the lower end of the microwave oven, the rotating shaft is fixedly installed on the top of the motor, the rotating platform is fixedly installed on the top of the rotating shaft, the support legs are fixedly installed on the left and right sides of the motor, the fixed rod is fixedly installed on the top of the left and right support legs, the large gear is fixedly installed on the top of the fixed rod and is located outside the rotating shaft, the support shaft is rotatably connected to the four corners of the rotating platform, the small gear is fixedly installed on the bottom of the support shaft, the support plate is fixedly installed on the top of the support shaft, the crucible is installed on the top of the support plate, and the block is fixedly installed on the outside of the crucible.

[0011] Preferably, the small gear and the large gear are engaged with each other, and a mounting groove is provided on the upper surface of the support plate. The lower end of the crucible and the clamping block are located in the mounting groove, which makes it easy to install the crucible on the top of the support plate. When the microwave oven heats the powdered ceramic material with microwaves, the motor is started to drive the rotating shaft and the rotating platform to rotate, so that the four support plates rotate around the rotating shaft, so that the ceramic material is heated evenly. At the same time, the small gear is engaged with the large gear, so that the support plate drives the crucible to rotate, so that all parts of the crucible are fully exposed to microwave radiation, further improving the heating quality of the ceramic material.

[0012] Preferably, the clamping mechanism includes a placement plate, an insert block, a fixed plate, a threaded rod and a clamping plate. The placement plate is arranged above four support plates. There are two insert blocks and they are fixedly installed at the bottom of the placement plate. The fixed plate is fixedly installed on both sides of the top of the placement plate. The threaded rod is threadedly connected to the inside of the fixed plate, and the clamping plate is rotatably connected to one end of the threaded rod.

[0013] Preferably, a socket is provided on the upper surface of the support plate, and the plug block is inserted into the socket. The installation and disassembly of the placement plate is achieved by plugging and separating the plug block and the socket provided in the support plate. When the ceramic blank needs to be heated, the placement plate can be installed on the top of the support plate, and then the ceramic blank is placed on the top of the placement plate, and the ceramic blank is clamped by the clamping plate, so that the ceramic blank can be heated.

[0014] Preferably, the material dispensing mechanism includes a telescopic part 1, a connecting tube, a movable rod, a connecting rod, a scraper and a bolt. The telescopic part 1 is fixedly installed on the top of the rotating platform, the connecting tube is fixedly installed on the top of the telescopic part 1, the movable rod is slidably connected to the inside of the connecting tube, the connecting rod is fixedly installed on the end of the movable rod away from the connecting tube, the scraper is fixedly installed on the outside of the lower end of the connecting rod, and the bolt is threadedly connected to the inside of the connecting tube.

[0015] Preferably, there are four connecting tubes and they are distributed at equal angles on the top of the telescopic part. Positioning holes are provided at the left and right ends of the movable rod. When the bolt is connected to the right positioning hole, the scraper is just located in the crucible. When the bolt is connected to the left positioning hole, the scraper is located on the inner side of the four support plates. When the powdered ceramic material is heated by the crucible, the scraper can be located in the crucible. When the crucible rotates, the powdered ceramic material in the crucible is stirred by the scraper, so that the microwave heating of the powdered ceramic material is more uniform.

[0016] Preferably, the discharging mechanism includes a slide rail, a roller and a second telescopic part, the slide rail is fixedly installed on the left and right sides of the lower end of the interior of the microwave oven, the roller is fixedly installed inside the two supporting legs, and the second telescopic part is fixedly installed on the inner wall of the microwave oven.

[0017] Preferably, the roller is rotatably connected to the inner wall of the slide rail, and the output end of the telescopic part 2 is fixedly connected to the support leg. By starting the telescopic part 2 to push the support leg, the motor is driven forward, so that the rotating platform is moved out of the microwave oven, making it easier to remove the heated ceramic material.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This heating device for synthesizing microwave dielectric ceramic materials is equipped with a rotating mechanism. When microwave heating the powdered ceramic material, the crucible can rotate around the rotating axis. At the same time, the support plate drives the crucible to rotate, so that all parts of the powdered ceramic material are fully exposed to microwave radiation, further improving the heating quality of the ceramic material.

[0019] 2. The heating device for synthesizing microwave dielectric ceramic materials is provided with a clamping mechanism. When heating the ceramic green body material, the placement plate can be quickly installed on the top of the support plate. At the same time, the ceramic green body material can be fixed by the clamping plate to achieve heating of the ceramic green body material and heating of different ceramic materials, thereby improving the practicality of the device.

[0020] 3. The heating device for synthesizing microwave dielectric ceramic materials is provided with a material-diverting mechanism. When the powdered ceramic material is heated by microwave, the scraper can be located in the crucible. When the crucible rotates, the powdered ceramic material in the crucible is stirred by the scraper to avoid accumulation of the powdered ceramic material and affect the efficiency of the powdered ceramic material in receiving microwave radiation, thereby making the microwave heating of the powdered ceramic material more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A cross-sectional view of the internal structure of a microwave oven according to the present invention; Figure 3 It is a schematic structural diagram of the rotating mechanism of the present invention; Figure 4 This is an exploded view of the connection between the support plate, crucible and clamping mechanism of the present invention; Figure 5 It is a schematic structural diagram of the movable rod and the connecting tube of the present invention in two states: extended and retracted; Figure 6 It is a structural schematic diagram of the connection between the rotating mechanism and the discharging mechanism of the present invention.

[0023] In the figure: 1. base; 2. microwave oven; 3. oven door; 401. motor; 402. rotating shaft; 403. rotating platform; 404. supporting foot; 405. fixing rod; 406. large gear; 407. supporting shaft; 408. small gear; 409. supporting plate; 410. crucible; 411. clamping block; 501. placing plate; 502. inserting block; 503. fixing plate; 504. threaded rod; 505. splint; 601. telescopic part 1; 602. connecting tube; 603. movable rod; 604. connecting rod; 605. scraper; 606. bolt; 701. slide rail; 702. roller; 703. telescopic part 2. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] See also Figures 1-6 The present invention provides a technical solution: a heating device for synthesizing microwave dielectric ceramic materials, comprising a base 1, a microwave oven 2 and a door 3. The microwave oven 2 is installed on the top of the base 1. The model of the microwave oven 2 is AMPS0915-3615T, which can realize microwave heating of ceramic materials. The door 3 is installed on the front of the microwave oven 2. A heating device is provided inside the microwave oven 2. The heating device includes a rotating mechanism, a clamping mechanism, a material digging mechanism and a discharging mechanism.

[0027] The rotating mechanism is arranged inside the microwave oven 2 , the clamping mechanism is arranged on the top of the rotating mechanism, the material-discharging mechanism is arranged on the top of the rotating mechanism, and the material-discharging mechanism is arranged at the lower end inside the microwave oven 2 .

[0028] The rotating mechanism includes a motor 401, a rotating shaft 402, a rotating platform 403, a support leg 404, a fixed rod 405, a large gear 406, a support shaft 407, a small gear 408, a support plate 409, a crucible 410 and a clamping block 411. The motor 401 is installed at the lower end of the interior of the microwave oven 2, the rotating shaft 402 is fixedly installed on the top of the motor 401, the rotating platform 403 is fixedly installed on the top of the rotating shaft 402, the support legs 404 are fixedly installed on the left and right sides of the motor 401, the fixed rod 405 is fixedly installed on the top of the left and right support legs 404, the large gear 406 is fixedly installed on the top of the fixed rod 405 and is located outside the rotating shaft 402, the support shaft 407 is rotatably connected to the four corners of the rotating platform 403, the small gear 408 is fixedly installed at the bottom of the support shaft 407, and the small gear 408 is connected to the large gear 4 06 are meshed with each other, and a mounting groove is provided on the upper surface of the support plate 409. The lower end of the crucible 410 and the clamping block 411 are located in the mounting groove, which is convenient for mounting the crucible 410 on the top of the support plate 409. When the microwave oven 2 is heating the powdered ceramic material with microwaves, the motor 401 is started to drive the rotating shaft 402 and the rotating platform 403 to rotate, so that the four support plates 409 rotate around the rotating shaft 402, so that the ceramic material is heated evenly. At the same time, the small gear 408 is engaged with the large gear 406, so that the support plate 409 drives the crucible 410 to rotate, so that each part of the crucible 410 is fully exposed to microwave radiation, further improving the heating quality of the ceramic material. The support plate 409 is fixedly mounted on the top of the support shaft 407, the crucible 410 is mounted on the top of the support plate 409, and the clamping block 411 is fixedly mounted on the outside of the crucible 410.

[0029] In order to achieve heating of the ceramic body material and prevent the ceramic body from shaking during rotation, the device is also provided with a clamping mechanism, which includes a placement plate 501, an insert block 502, a fixing plate 503, a threaded rod 504 and a clamping plate 505. The placement plate 501 is arranged above the four support plates 409. There are two insert blocks 502 and they are fixedly installed at the bottom of the placement plate 501. A socket is provided on the upper surface of the support plate 409, and the insert block 502 is inserted into the socket. The installation and removal of the placement plate 501 are achieved by connecting and separating the insert block 502 and the socket provided on the support plate 409. When the ceramic blank is to be heated, the placement plate 501 can be installed on the top of the support plate 409, and then the ceramic blank can be placed on the top of the placement plate 501, and the ceramic blank can be clamped by the clamping plate 505, so that the ceramic blank can be heated. The fixing plate 503 is fixedly installed on both sides of the top of the placement plate 501, and the threaded rod 504 is threadedly connected to the inside of the fixing plate 503. By rotating the threaded rod 504 and threading it with the fixing plate 503, the clamping plate 505 clamps the ceramic blank material to prevent the ceramic blank material from shaking during microwave heating. The clamping plate 505 is rotatably connected to one end of the threaded rod 504.

[0030] In order to prevent the powder ceramic material from piling up and affecting the quality of microwave heating, the device is also provided with a material-dividing mechanism, which includes a telescopic member 601, a connecting tube 602, a movable rod 603, a connecting rod 604, a scraper 605 and a bolt 606. The telescopic member 601 is fixedly installed on the top of the rotating platform 403. The telescopic member 601 is an electric push rod. When the scraper 605 enters the crucible 410, the height of the scraper 605 is adjusted by the telescopic member 601 to avoid collision between the scraper 605 and the crucible 410. The connecting tube 602 is fixedly installed on the top of the telescopic member 601. There are four connecting tubes 602 and they are distributed at equal angles on the top of the telescopic member 601. Positioning holes are provided at the left and right ends of the movable rod 603. When the bolt 606 is connected to the right positioning hole, the scraper 605 is just located in the crucible 410. When the bolt 606 is connected to the left positioning hole, the scraper 605 is located on the inner side of the four support plates 409. When the powdered ceramic material is heated through the crucible 410, the scraper 605 can be located in the crucible 410. When the crucible 410 rotates, the powdered ceramic material in the crucible 410 is stirred by the scraper 605, so that the microwave heating of the powdered ceramic material is more uniform. The movable rod 603 is slidably connected to the inside of the connecting tube 602, and the connecting rod 604 is fixedly installed at the end of the movable rod 603 away from the connecting tube 602. The scraper 605 is fixedly installed on the outside of the lower end of the connecting rod 604. The scrapers 605 are distributed on the left and right sides of the lower end of the connecting rod 604, and can stir the powdered ceramic material accumulated on the inner wall and middle of the crucible 410, thereby improving the microwave heating quality of the powdered ceramic material. The bolt 606 is threadedly connected to the inside of the connecting tube 602.

[0031] After heating the ceramic material, the temperature inside the microwave oven 2 is high, and the rotating platform 403 needs to be moved out of the microwave oven 2 before the material is taken out. In order to facilitate the removal of the heated ceramic material, the device is also provided with a discharging mechanism, which includes a slide rail 701, a roller 702 and a telescopic member 2 703. The slide rail 701 is fixedly installed on the left and right sides of the lower end of the interior of the microwave oven 2, and the roller 702 is fixedly installed inside the two supporting legs 404. The roller 702 is rollingly connected to the inner wall of the slide rail 701, and the output end of the telescopic member 2 703 is fixedly connected to the supporting legs 404. By starting the telescopic member 2 703, the supporting legs 404 are pushed to drive the motor 401 to move forward, so that the rotating platform 403 is moved out of the microwave oven 2, which is convenient for removing the heated ceramic material. The telescopic member 2 703 is fixedly installed on the inner wall of the microwave oven 2. The telescopic member 2 703 includes a hydraulic cylinder and a hydraulic rod. The hydraulic cylinder is fixedly installed on the inner wall of the microwave oven 2, and the hydraulic rod is installed at the output end of the hydraulic cylinder.

[0032] When in use, the door 3 is opened and the telescopic part 2 703 is activated to push the rotating platform 403 out of the microwave oven 2. When the powdered ceramic material needs to be heated by microwave, the crucible 410 is matched with the mounting groove opened on the top of the support plate 409, the crucible 410 is mounted on the top of the support plate 409, and then the powdered ceramic material is poured into the crucible 410. Then, the movable rod 603 is pushed to move along the connecting tube 602 until the scraper 605 moves into the crucible 410, and then the movable rod 603 is tightened by the bolt 606. The rod 603 is fixed, and the telescopic part 703 is started to pull the rotating platform 403 into the microwave oven 2, and the door 3 is closed. The microwave oven 2 is started to heat the powdered ceramic material. At the same time, the motor 401 is started to drive the rotating shaft 402 and the rotating platform 403 to rotate, so that the four support plates 409 rotate around the rotating shaft 402, so that the ceramic material is heated evenly. At the same time, the small gear 408 is engaged with the large gear 406, so that the support plate 409 drives the crucible 410 to rotate, so that each part of the crucible 410 is fully heated. 606, so that the powdered ceramic material is heated more evenly, thereby completing the heating of the powdered ceramic material. When the ceramic body needs to be heated, the movable rod 603 is pushed into the connecting tube 602 and fixed with the bolt 606. Then the crucible 410 is removed, and the plug 502 connected to the bottom of the placement plate 501 is inserted into the socket opened in the support plate 409. Then the ceramic body is placed on the top of the placement plate 501 and clamped by the clamping plate 505. Then, the ceramic body is heated by the microwave oven 2. At the same time, the motor 401 is started to drive the rotating platform 403 to rotate, and the small gear 408 is engaged with the large gear 406, so that the support plate 409 drives the ceramic body on the placement plate 501 to rotate, so that all parts of the ceramic body are heated evenly, thereby completing the heating of the ceramic body.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heating device for synthesizing microwave dielectric ceramic materials, comprising a base (1), a microwave oven (2) and a door (3), wherein the microwave oven (2) is mounted on the top of the base (1) and the door (3) is mounted on the front of the microwave oven (2), characterized in that: The microwave oven (2) is provided with a heating device inside, and the heating device comprises a rotating mechanism, a clamping mechanism, a material shifting mechanism and a material discharging mechanism; The rotating mechanism is arranged inside the microwave oven (2), the clamping mechanism is arranged at the top of the rotating mechanism, the material-discharging mechanism is arranged at the top of the rotating mechanism, and the material-discharging mechanism is arranged at the lower end inside the microwave oven (2); The rotating mechanism comprises a motor (401), a rotating shaft (402), a rotating platform (403), a support leg (404), a fixing rod (405), a large gear (406), a supporting shaft (407), a small gear (408), a supporting plate (409), a crucible (410) and a clamping block (411). The motor (401) is mounted at the lower end of the interior of the microwave oven (2). The rotating shaft (402) is fixedly mounted on the top of the motor (401). The rotating platform (403) is fixedly mounted on the top of the rotating shaft (402). The support leg (404) is fixedly mounted on the left side of the motor (401). On the right side, the fixed rod (405) is fixedly mounted on the top of the left and right legs (404), the large gear (406) is fixedly mounted on the top of the fixed rod (405) and is located outside the rotating shaft (402), the support shaft (407) is rotatably connected to the inside of the four corners of the rotating platform (403), the small gear (408) is fixedly mounted on the bottom of the support shaft (407), the support plate (409) is fixedly mounted on the top of the support shaft (407), the crucible (410) is mounted on the top of the support plate (409), and the block (411) is fixedly mounted on the outside of the crucible (410).

2. The heating device for synthesizing microwave dielectric ceramic materials according to claim 1, characterized in that: The small gear (408) and the large gear (406) are meshed with each other. A mounting groove is provided on the upper surface of the support plate (409). The lower end of the crucible (410) and the clamping block (411) are located in the mounting groove.

3. The heating device for synthesizing microwave dielectric ceramic materials according to claim 1, characterized in that: The clamping mechanism includes a placement plate (501), an insert block (502), a fixing plate (503), a threaded rod (504) and a clamping plate (505), wherein the placement plate (501) is arranged above four support plates (409), the insert blocks (502) are two in number and are fixedly installed at the bottom of the placement plate (501), the fixing plate (503) is fixedly installed at both sides of the top of the placement plate (501), the threaded rod (504) is threadedly connected to the inside of the fixing plate (503), and the clamping plate (505) is rotatably connected to one end of the threaded rod (504).

4. The heating device for synthesizing microwave dielectric ceramic materials according to claim 3, characterized in that: The upper surface of the support plate (409) is provided with a socket, and the plug block (502) is plugged into the socket.

5. The heating device for synthesizing microwave dielectric ceramic materials according to claim 1, characterized in that: The material-dispensing mechanism comprises a telescopic member (601), a connecting tube (602), a movable rod (603), a connecting rod (604), a scraper (605) and a bolt (606), wherein the telescopic member (601) is fixedly mounted on the top of the rotating platform (403), the connecting tube (602) is fixedly mounted on the top of the telescopic member (601), the movable rod (603) is slidably connected to the inside of the connecting tube (602), the connecting rod (604) is fixedly mounted on an end of the movable rod (603) away from the connecting tube (602), the scraper (605) is fixedly mounted on the outside of the lower end of the connecting rod (604), and the bolt (606) is threadedly connected to the inside of the connecting tube (602).

6. The heating device for synthesizing microwave dielectric ceramic materials according to claim 5, characterized in that: There are four connecting tubes (602) distributed at equal angles on the top of the telescopic member (601). Positioning holes are provided at the left and right ends of the movable rod (603). When the bolt (606) is connected to the right positioning hole, the scraper (605) is just located in the crucible (410). When the bolt (606) is connected to the left positioning hole, the scraper (605) is located inside the four support plates (409).

7. The heating device for synthesizing microwave dielectric ceramic materials according to claim 1, characterized in that: The discharging mechanism comprises a slide rail (701), a roller (702) and a second telescopic member (703), wherein the slide rail (701) is fixedly mounted on the left and right sides of the lower end of the interior of the microwave oven (2), the roller (702) is fixedly mounted inside two supporting legs (404), and the second telescopic member (703) is fixedly mounted on the inner wall of the microwave oven (2).

8. The heating device for synthesizing microwave dielectric ceramic materials according to claim 7, characterized in that: The roller (702) is rollingly connected to the inner wall of the slide rail (701), and the output end of the second telescopic member (703) is fixedly connected to the support leg (404).

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