Aluminum oxide ceramic tube shell production device and preparation method

Abstract

The invention discloses an aluminum oxide ceramic tube shell production device and a preparation method, and belongs to the technical field of aluminum oxide ceramic tube shell preparation, the technical scheme is that the aluminum oxide ceramic tube shell production device comprises a forming mechanism, a transferring mechanism, a sintering mechanism and a surface treatment mechanism, the transferring mechanism is used for transferring the formed aluminum oxide ceramic tube shell to the sintering mechanism, the sintering mechanism is used for sintering the formed aluminum oxide ceramic tube shell, and the surface treatment is used for carrying out surface treatment on the sintered aluminum oxide ceramic tube shell. According to the scheme, the adjacent aluminum oxide ceramic tube shells can be uniformly heated, the product quality is ensured, the uniform heating time of the single aluminum oxide ceramic tube shell can be prolonged, repeated sintering is not needed, and the preparation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of alumina ceramic tube shell preparation technology, specifically to an alumina ceramic tube shell production apparatus and preparation method. Background Technology

[0002] Alumina ceramics are widely used due to their good conductivity, mechanical strength and high temperature resistance. The existing preparation of alumina ceramics mainly adopts isostatic pressing. The main process is to press the treated raw materials into alumina ceramic tube shell, then place the formed alumina ceramic tube shell on a support frame and transfer it to a sintering equipment for sintering. After sintering, surface treatment is performed. During the sintering process, the alumina ceramic tube shells are limited by the size of the support frame, resulting in multiple ceramic tube shells being close to each other. This causes uneven heating of adjacent alumina ceramic tube shells, affecting product quality. Furthermore, it is impossible to adjust the uniform heating time for individual alumina tube shells, requiring multiple sintering processes and affecting preparation efficiency. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention aims to provide an alumina ceramic tube shell production apparatus and preparation method, which not only enables adjacent alumina ceramic tube shells to be heated evenly, ensuring product quality, but also extends the uniform heating time of a single alumina ceramic tube shell, eliminating the need for multiple sintering processes and improving preparation efficiency.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an alumina ceramic tube shell production apparatus and preparation method, comprising a forming mechanism, a transfer mechanism, a sintering mechanism and a surface treatment mechanism, wherein the forming mechanism performs isostatic pressing of alumina ceramic raw materials, the transfer mechanism transfers the formed alumina ceramic tube shell to the sintering mechanism, the sintering mechanism performs sintering treatment on the formed alumina ceramic tube shell, and the surface treatment performs surface treatment on the sintered alumina ceramic tube shell.

[0005] In some embodiments, the transfer mechanism includes a movable frame, on which a first placement area and a second placement area are provided. Both the first placement area and the second placement area are provided with limit grooves. The movable frame is provided with a base plate. A first support member and a second support member are respectively provided between the base plate and the first placement area and the second placement area. A control member is provided on the movable frame between the first support member and the second support member. The movable frame is provided with casters.

[0006] In some embodiments, the first carrier includes a plurality of first trays, each first tray is fixedly connected to a first rotating rod, each first rotating rod is respectively provided with a first spur gear and a second spur gear, each first spur gear is connected to the control component, each first rotating rod is rotatably connected to the base plate, each first tray is rotatably connected to the limiting groove, and the plurality of second spur gears are arranged in a stepped manner.

[0007] In some embodiments, the second carrier includes a plurality of second trays, each second tray having a second rotating rod fixedly connected to it, each second rotating rod having a third flat gear fixedly connected to it, each third flat gear being connected to the control component, each second rotating rod being rotatably connected to the base plate, and each second tray being rotatably connected to the limiting groove. In some embodiments, the control component includes a movable frame, with a lead screw rotatably connected to each end of the movable frame. A slide rod is provided in the middle of the movable frame, and racks are provided on the slide rod and the two lead screws. A transmission rod is provided on the side of the movable frame, and two worm gears are provided on the transmission rod. A worm wheel is provided at the end of each of the two lead screws, and the two worm wheels mesh with one of the worm gears. A connecting rod is rotatably connected to the end of the movable frame, and a fourth spur gear is fixedly connected to the connecting rod. A fifth spur gear is fixedly connected to the end of the worm gear, and the fourth spur gear meshes with the fifth spur gear. A turntable is detachably connected to the end of the connecting rod.

[0008] In some embodiments, a slide bar is provided on each side of the movable frame, and a sliding groove is provided on both the movable frame and the base plate, with the slide bar slidably connected to the sliding groove.

[0009] In some embodiments, the rack frame includes a first crossbar and a second crossbar, the first crossbar being screwed to the lead screw, the second crossbar being rotatably connected to the lead screw, a first rack being fixedly connected to the end of the first crossbar, the first rack being connected to the first support member, and a second rack being fixedly connected to the end of the second crossbar, the second rack being connected to the second support member.

[0010] A method for preparing an alumina ceramic tube shell, using the above-mentioned apparatus, includes the following steps: a: The operator first loads the alumina powder into the mold, then places the mold into the high-pressure container in the forming mechanism, and uses the liquid medium in the high-pressure container to apply pressure evenly to the mold to achieve isostatic pressing. b: After the alumina tube shell is isostatically pressed, the operator will transfer the alumina tube shell to the sintering mechanism for sintering through the transfer mechanism. c: During sintering, the operator controls the rotation of the formed alumina tube shell through the transfer mechanism to ensure the uniform heating of the alumina tube shell and avoid surface cracking. d: After sintering, the operator transfers the alumina tube shell to the surface treatment unit for polishing and grinding, thus completing the preparation of the alumina tube shell.

[0011] In summary, the present invention has the following beneficial effects: This invention includes a transfer mechanism. Using a control element within the transfer mechanism, the alumina ceramic tube shell is rotated from outside the sintering mechanism during sintering. This ensures uniform heating of the alumina ceramic tube shell surface, preventing uneven heating due to close proximity between adjacent shells and ensuring product quality. Furthermore, the first rack in the control element allows for selective control of individual alumina ceramic tube shell rotation as needed, extending the uniform heating time and eliminating the need for multiple sintering processes, thus improving product preparation efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the first support member of the present invention; Figure 3 This is a schematic diagram of the overall structure of the second support member of the present invention; Figure 4 This is a schematic diagram of the overall structure of the control component of the present invention; Figure 5 This is a partial structural schematic diagram of the control component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the rack frame of the present invention; Figure 7 This is a partial structural diagram of the present invention; Figure 8 This is a side view of the present invention.

[0013] In the diagram: 1. Transfer frame; 11. Base plate; 111. Slide groove; 12. First placement area; 13. Second placement area; 14. Limiting groove; 15. Moving wheel; 2. First bearing component; 21. First tray; 22. First rotating rod; 23. First spur gear; 24. Second spur gear; 3. Second bearing component; 31. Second tray; 32. Second rotating rod; 33. Third spur gear; 4. Control component; 41. Moving frame; 42. Lead screw; 43. Slide rod; 431. Convex ring; 44. Transmission rod; 45. Worm gear; 46. Worm wheel; 47. Rack frame; 471. First crossbar; 472. First rack; 473. Second crossbar; 474. Second rack; 48. Fifth spur gear; 49. Connecting rod; 410. Fourth spur gear; 411. Turntable; 412. Handle; 413. Slide bar. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] See Figure 1-8 An alumina ceramic tube shell production apparatus and preparation method are disclosed, comprising a forming mechanism, a transfer mechanism, a sintering mechanism, and a surface treatment mechanism. The forming mechanism performs isostatic pressing on the alumina ceramic raw material, the transfer mechanism transfers the formed alumina ceramic tube shell to the sintering mechanism, the sintering mechanism performs sintering treatment on the formed alumina ceramic tube shell, and the surface treatment mechanism performs surface treatment on the sintered alumina ceramic tube shell.

[0016] In some embodiments, the transfer mechanism includes a transfer frame 1, on which a first placement area 12 and a second placement area 13 are provided. Limiting grooves 14 are provided in both the first placement area 12 and the second placement area 13. A base plate 11 is provided on the transfer frame 1. A first support member 2 and a second support member 3 are respectively provided between the base plate 11 and the first placement area 12 and the second placement area 13. A control member 4 is provided on the transfer frame 1 between the first support member 2 and the second support member 3. The transfer frame 1 is provided with casters 15.

[0017] In some embodiments, the first carrier 2 includes a plurality of first trays 21, each first tray 21 is fixedly connected to a first rotating rod 22, each first rotating rod 22 is respectively provided with a first spur gear 23 and a second spur gear 24, each first spur gear 23 is connected to the control component 4, each first rotating rod 22 is rotatably connected to the base plate 11, each first tray 21 is rotatably connected to the limiting groove 14, and the plurality of second spur gears 24 are arranged in a stepped manner.

[0018] In some embodiments, the second carrier 3 includes a plurality of second trays 31, each second tray 31 is fixedly connected to a second rotating rod 32, each second rotating rod 32 is fixedly connected to a third spur gear 33, each third spur gear 33 is connected to the control component 4, each second rotating rod 32 is rotatably connected to the base plate 11, and each second tray 31 is rotatably connected to the limiting groove 14. In some embodiments, the control component 4 includes a movable frame 41, with a lead screw 42 rotatably connected to each end of the movable frame 41. A slide rod 43 is provided in the middle of the movable frame 41, and a rack frame 47 is provided on the slide rod 43 and the two lead screws 42. A transmission rod 44 is provided on the side of the movable frame 41, and two worm gears 45 are provided on the transmission rod 44. A worm wheel 46 is provided at the end of each of the two lead screws 42, and the two worm wheels 46 mesh with one of the worm gears 45 respectively. A connecting rod 49 is rotatably connected to the end of the movable frame 41, and a fourth spur gear 410 is fixedly connected to the connecting rod 49. A fifth spur gear 48 is fixedly connected to the end of the worm gear 45, and the fourth spur gear 410 meshes with the fifth spur gear 48. A turntable 411 is detachably provided at the end of the connecting rod 49.

[0019] In some embodiments, a slide bar 413 is provided on each side of the movable frame 41, and a slide groove 111 is provided on both the transfer frame 1 and the base plate 11, with the slide bar 413 slidably connected to the slide groove 111.

[0020] In some embodiments, the rack frame 47 includes a first crossbar 471 and a second crossbar 473. The first crossbar 471 is screwed to a lead screw 42, and the second crossbar 473 is rotatably connected to the lead screw 42. A first rack 472 is fixedly connected to the end of the first crossbar 471 and is connected to a first support member 2. A second rack 474 is fixedly connected to the end of the second crossbar 473 and is connected to a second support member 3.

[0021] Working principle: The operator first mixes and refines high-purity alumina powder and some sintering aids through ball milling, then loads it into a mold. The mold is then placed into the forming mechanism for isostatic pressing. The forming structure utilizes existing isostatic pressing technology and will not be elaborated further. After forming, the alumina ceramic tube shell is moved to the transfer mechanism using a robotic arm. Multiple alumina ceramic tube shells are then placed onto the first tray 21 and the second tray 31, respectively. The operator then pushes the transfer frame 1 into the sintering mechanism for sintering. The sintering mechanism is an existing sintering device. A hole for the connecting rod 49 is provided in the closed door of the sintering device. After the operator pushes the transfer frame 1 into the sintering device, the turntable 411 is detached from the end of the connecting rod 49. The turntable 411 and the connecting rod 49 can be connected by threads, but are not limited to this. After the connecting rod 49 passes through the hole in the closed door of the sintering mechanism, the turntable 411 is reinstalled. Then, the sintering process is started. The sintering mechanism sinters the alumina ceramic tube shells on the internal transfer frame 1. During the sintering process, the operator can move the moving frame 41 by pulling the turntable 411. The moving frame 41 moves on the slide groove 111 using the slide bar 413. When moving, the moving frame 41 drives the first rack 472 and the second rack 474 in the rack frame 47 to move, so that the first rack 472 drives the first spur gear 23 to rotate, and the second rack 474 drives the third spur gear 33 to rotate. As a result, the alumina ceramic tube shells on the first tray 21 and the second tray 31 rotate, ensuring that the surface of the alumina ceramic tube shell is heated evenly. This prevents uneven heating on the side of the two alumina ceramic tube shells that are close to each other due to the close distance between adjacent alumina ceramic tube shells, which would prevent rapid heat dissipation and affect the quality of the alumina ceramic tube shells. Finally, the sintered alumina ceramic tube shells are transported to the surface treatment mechanism through the transfer frame 1 for surface treatment. After polishing, the preparation of the alumina ceramic tube shells is completed. like Figure 8As shown, if one of the alumina ceramic tube shells requires extended uniform heating time during sintering to improve the quality after sintering due to subsequent processing requirements, the operator can rotate the turntable 411. The turntable 411 is equipped with a handle 412 for easy rotation. When the operator rotates the turntable 411, the turntable 411 drives the fourth spur gear 410 to rotate via the connecting rod 49. The fourth spur gear 410 drives the fifth spur gear 48 to rotate, and then the fifth spur gear 48 drives the worm gear 45 to rotate via the transmission rod 44. The worm gear 45 drives the worm wheel 46 to rotate, and then the worm wheel 46 drives the two lead screws 42 to rotate. Then, the first crossbar 471 and the first rack 472 in the rack frame 47 move downward under the restriction of the slide bar 43. The slide bar 43 is equipped with multiple protruding rings 431. When the first crossbar 471 moves downward, the first rack 472 moves downward under the restriction of the slide bar 43. When the first crossbar 471 moves to contact a convex ring 431, it means that the first crossbar 471 has moved to contact a second spur gear 24. When the moving frame 41 is pulled to move, the moving frame 41 drives the first rack 472 to move, which causes the first rotating rod 22 connected to the second spur gear 24 in contact with the first rack 472 to rotate. This causes the first tray 21 at that position to rotate, thus enabling the individual alumina tube shell to continue rotating, extending the time for uniform heating, improving quality, and preparing for subsequent processing. This cycle continues, controlling the first crossbar 471 to move downward, so that the first rack 472 meshes with multiple second spur gears 24 respectively. This allows for the specified continued rotation of an alumina ceramic tube shell as needed, extending its time for uniform heating, eliminating the need for multiple sintering, and improving product preparation efficiency.

[0022] A method for preparing an alumina ceramic tube shell, using the above-mentioned apparatus, includes the following steps: a: The operator first loads the alumina powder into the mold, then places the mold into the high-pressure container in the forming mechanism, and uses the liquid medium in the high-pressure container to apply pressure evenly to the mold to achieve isostatic pressing. b: After the alumina tube shell is isostatically pressed, the operator will transfer the alumina tube shell to the sintering mechanism for sintering through the transfer mechanism. c: During sintering, the operator controls the rotation of the formed alumina tube shell through the transfer mechanism to ensure the uniform heating of the alumina tube shell and avoid surface cracking. d: After sintering, the operator transfers the alumina tube shell to the surface treatment unit for polishing and grinding, thus completing the preparation of the alumina tube shell.

[0023] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An apparatus for producing alumina ceramic tube shells, characterized in that: It includes a forming mechanism, a transfer mechanism, a sintering mechanism, and a surface treatment mechanism. The forming mechanism performs isostatic pressing on the alumina ceramic raw material. The transfer mechanism transfers the formed alumina ceramic tube shell to the sintering mechanism. The sintering mechanism performs sintering treatment on the formed alumina ceramic tube shell. The surface treatment mechanism performs surface treatment on the sintered alumina ceramic tube shell.

2. The alumina ceramic tube shell production apparatus according to claim 1, characterized in that: The transfer mechanism includes a transfer frame (1), on which a first placement area (12) and a second placement area (13) are provided. Limiting grooves (14) are provided in both the first placement area (12) and the second placement area (13). A base plate (11) is provided on the transfer frame (1). A first support member (2) and a second support member (3) are respectively provided between the base plate (11) and the first placement area (12) and the second placement area (13). A control member (4) is provided on the transfer frame (1) between the first support member (2) and the second support member (3). A moving wheel (15) is provided on the transfer frame (1).

3. The alumina ceramic tube shell production apparatus according to claim 2, characterized in that: The first carrier (2) includes a plurality of first trays (21), each of which is fixedly connected to a first rotating rod (22). Each of the first rotating rods (22) is provided with a first spur gear (23) and a second spur gear (24). Each of the first spur gears (23) is connected to the control component (4). Each of the first rotating rods (22) is rotatably connected to the base plate (11). Each of the first trays (21) is rotatably connected to the limiting groove (14). The plurality of second spur gears (24) are arranged in a stepped manner.

4. The alumina ceramic tube shell production apparatus according to claim 2, characterized in that: The second carrier (3) includes a plurality of second trays (31), each second tray (31) is fixedly connected to a second rotating rod (32), each second rotating rod (32) is fixedly connected to a third spur gear (33), each third spur gear (33) is connected to the control component (4), each second rotating rod (32) is rotatably connected to the base plate (11), and each second tray (31) is rotatably connected to the limiting groove (14).

5. The alumina ceramic tube shell production apparatus according to claim 2, characterized in that: The control component (4) includes a movable frame (41), with a lead screw (42) rotatably connected to each end of the movable frame (41). A slide rod (43) is provided in the middle of the movable frame (41). A rack frame (47) is provided on the slide rod (43) and the two lead screws (42). A transmission rod (44) is provided on the side of the movable frame (41). Two worm gears (45) are provided on the transmission rod (44). A worm wheel (46) is provided at the end of each of the two lead screws (42). The two worm wheels (46) mesh with one of the worm gears (45). A connecting rod (49) is rotatably connected to the end of the movable frame (41). A fourth spur gear (410) is fixedly connected to the connecting rod (49). A fifth spur gear (48) is fixedly connected to the end of the worm gear (45). The fourth spur gear (410) meshes with the fifth spur gear (48). A turntable (411) is detachably connected to the end of the connecting rod (49).

6. The alumina ceramic tube shell production apparatus according to claim 5, characterized in that: Each side of the movable frame (41) is provided with a slide bar (413), and both the transfer frame (1) and the base plate (11) are provided with a slide groove (111). The slide bar (413) is slidably connected to the slide groove (111).

7. The alumina ceramic tube shell production apparatus according to claim 5, characterized in that: The rack frame (47) includes a first crossbar (471) and a second crossbar (473). The first crossbar (471) is screwed to the lead screw (42), and the second crossbar (473) is rotatably connected to the lead screw (42). A first rack (472) is fixedly connected to the end of the first crossbar (471), and the first rack (472) is connected to the first bearing member (2). A second rack (474) is fixedly connected to the end of the second crossbar (473), and the second rack (474) is connected to the second bearing member (3).

8. A method for preparing an alumina ceramic tube shell, using the alumina ceramic tube shell production apparatus according to any one of claims 1-7, characterized in that: Includes the following steps: a: The operator first loads the alumina powder into the mold, then places the mold into the high-pressure container in the forming mechanism, and uses the liquid medium in the high-pressure container to apply pressure evenly to the mold to achieve isostatic pressing. b: After the alumina tube shell is isostatically pressed, the operator will transfer the alumina tube shell to the sintering mechanism for sintering through the transfer mechanism. c: During sintering, the operator controls the rotation of the formed alumina tube shell through the transfer mechanism to ensure the uniform heating of the alumina tube shell and avoid surface cracking. d: After sintering, the operator transfers the alumina tube shell to the surface treatment unit for polishing and grinding, thus completing the preparation of the alumina tube shell.

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