An apparatus for manufacturing a polycrystalline alumina fiber mat

Abstract

The utility model provides a kind of polycrystalline alumina fibre gasket's manufacturing device, comprising: manufacturing platform, spray head, air duct and collection net, spray head is used to spray polycrystalline alumina colloidal solution, then the polycrystalline alumina colloidal solution of spraying is stretched fiberization by air duct, and the polycrystalline alumina fibre after stretching is collected by collection net;Wherein, manufacturing platform upper end is equipped with front and rear linear movement's stroke frame, and stroke frame upper end is equipped with rotating adjustment's axle column, the front and rear linear movement of axle column is synchronously driven by the front and rear linear movement of stroke frame, by the front and rear linear movement and rotating adjustment of axle column.The utility model realizes that polycrystalline alumina fibre is crossed and is overlaid in front and back simultaneously, and intermittent swing is adjusted laying angle, so that polycrystalline alumina fibre is evenly crossed and is overlaid on the upper end of collection net, relative to traditional fixed type vertical laying, further improve the fibre uniformity of polycrystalline alumina fibre gasket.

Description

Technical Field

[0001] This utility model relates to the field of polycrystalline alumina fiber product manufacturing technology, and in particular to a manufacturing apparatus for polycrystalline alumina fiber liner. Background Technology

[0002] In the industrial production of polycrystalline alumina fiber liners, the blow molding method is the mainstream forming process. Its core principle is to dynamically stretch and refine the sol-gel system through high-pressure airflow. Specifically, an aluminum sol-silica sol composite colloid, with chemically proportioned and viscosity-controlled parameters, is blown out at high speed under a specific nozzle structure, while simultaneously being stretched and fiberized using compressed airflow within the air duct. During this process, parameters such as blowing pressure, temperature, and humidity must be controlled to ensure that the fiber diameter and length meet the requirements.

[0003] Traditional spraying devices use a vertical layout design of nozzles and air ducts. However, when stretching and refining colloidal solutions, the fibers formed by the vertically arranged nozzles and air ducts can only be laid vertically on the collection net, making it difficult to form a cross-layered structure, thus reducing the fiber uniformity of the polycrystalline alumina fiber liner. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a manufacturing device for polycrystalline alumina fiber liner.

[0005] To address the technical problem mentioned above, the traditional spraying device employs a vertical layout design of nozzles and air ducts. However, when stretching and refining the colloidal solution, the resulting fibers can only be laid vertically on the collection net, making it difficult to form a cross-layered structure, thus reducing the fiber uniformity of the polycrystalline alumina fiber liner, the technical solution adopted in this utility model is as follows: A manufacturing apparatus for polycrystalline alumina fiber liner includes: a manufacturing table, a nozzle, an air duct, and a collection net. The nozzle is used to spray out a polycrystalline alumina colloidal solution, and the sprayed polycrystalline alumina colloidal solution is stretched and fiberized through the air duct. The stretched polycrystalline alumina fibers are collected through the collection net. The manufacturing platform is equipped with a stroke frame that moves linearly back and forth, and a rotating and adjustable shaft is located at the top of the stroke frame. The linear movement of the stroke frame drives the linear movement of the shaft in the same way. The linear movement and rotation adjustment of the shaft drive the nozzle and the air duct to move linearly back and forth and adjust their swing angles in the same way, so that the polycrystalline alumina fibers are evenly and crosswise laid on the top of the collection net.

[0006] Preferably, it further includes a slide rail, a slide block, a first drive motor, a first gear, and a rack. The slide block is slidably fitted onto the outer end of the slide rail, so that the slide block is linearly limited by the slide rail. The travel frame is fixedly installed on the outer end of the slide block. The first drive motor is embedded and fixed on the outer side of the lower end of the travel frame. The first gear is connected to the first drive motor through a reducer, so that the first drive motor drives the first gear to rotate. The rack is meshed with the first gear and is horizontally fixed on the outer side of the upper end of the manufacturing table, so that when the first gear rotates, the force generated by meshing with the rack will convert the rotational motion into the linear displacement of the travel frame.

[0007] Preferably, there are two slide rails, which are symmetrically fixedly installed on both sides of the upper end of the manufacturing table. Limiting plates are fixedly installed at both ends of the rack, so that the limiting plates can block and limit the rack. The first gear and the rack are covered with a transparent protective cover, so that the transmission area of ​​the first gear and the rack can be shielded and protected by the transparent cover.

[0008] Preferably, it also includes a second drive motor, a second gear, a half gear, and a mounting bracket. The second drive motor is embedded and fixedly mounted on the inner side of the upper end of the travel frame. The second gear is connected to the second drive motor through a reducer, so that the second drive motor drives the second gear to rotate intermittently. The half gear meshes with the upper end of the second gear and is fixedly mounted on the outer curved surface of the side end of the shaft column. The air duct is fixedly mounted on the inner side of the shaft column, so that when the second gear rotates intermittently, it will synchronously drive the air duct to swing intermittently.

[0009] Preferably, limit blocks are fixedly installed at both ends of the half gear, so that the limit blocks can block and limit the two ends of the half gear. The mounting bracket is fixedly installed at the upper end of the air duct, and the nozzle is fixedly installed through the upper end of the mounting bracket, with the lower nozzle opening facing the inside of the air duct.

[0010] Preferably, the manufacturing table has a through-hole for mounting groove, and a mounting boss is fixedly mounted on the inner wall of the mounting groove. The collection net is detachably mounted on the upper end of the mounting boss, so that the collection net is detachably supported and limited by the mounting boss.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model controls the first drive motor to start via a controller. When the first drive motor starts, it converts the rotational motion into the linear displacement of the travel frame. When the travel frame moves linearly, it drives the slide to move linearly along the outer end of the slide rail. This allows the travel frame to be linearly limited by the slide rail and the slide. When the travel frame moves linearly, it also drives the air duct and the nozzle to move linearly, causing the polycrystalline alumina fibers to move back and forth and overlap on the top of the collection net. This invention also controls the activation of a second drive motor via a controller. When the second drive motor is activated, it drives the shaft column to rotate intermittently. When the shaft column rotates intermittently, it synchronously drives the air duct and nozzle to swing and adjust intermittently. This allows the polycrystalline alumina fibers to be intermittently swung and adjusted at the laying angle while being cross-laid in front and behind, so that the polycrystalline alumina fibers are evenly cross-laid on the upper end of the collection net. Compared with the traditional fixed vertical laying, this further improves the fiber uniformity of the polycrystalline alumina fiber pad. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0014] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 .

[0015] Figure 4 This is a partial structural schematic diagram of the present invention.

[0016] Reference numerals: 1. Manufacturing table; 2. Nozzle; 3. Air duct; 4. Collection net; 5. Mounting slot; 6. Mounting boss; 7. Travel bracket; 8. Shaft column; 9. Slide rail; 10. Slide block; 11. First drive motor; 12. First gear; 13. Rack; 14. Second drive motor; 15. Second gear; 16. Half gear; 17. Mounting bracket. Detailed Implementation

[0017] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] Please see Figure 1-4 This embodiment proposes a manufacturing apparatus for polycrystalline alumina fiber liner, including a manufacturing table 1, a nozzle 2, an air duct 3, and a collection net 4. The manufacturing table 1 has a through-hole opening with an installation groove 5. An installation boss 6 is fixedly installed on the inner wall of the installation groove 5. The collection net 4 is detachably installed on the upper end of the installation boss 6 by means of a snap fastener, so that the installation boss 6 can detachably support and limit the collection net 4.

[0020] The innovation of this utility model is that a travel frame 7 that can move linearly back and forth is installed on the upper end of the manufacturing table 1, and a rotatable and adjustable shaft column 8 is provided on the upper end of the travel frame 7. The linear movement and rotation adjustment of the travel frame 7 and the shaft column 8 synchronously drive the nozzle 2 and the air duct 3 to move linearly back and forth and adjust the swing angle.

[0021] This utility model also includes a slide rail 9, and there are two slide rails 9, which are symmetrically fixedly installed on both sides of the upper end of the manufacturing table 1. The slide rail 9 has a sliding seat 10 that limits its movement in the front and rear. The travel frame 7 is fixedly installed on the outer end of the sliding seat 10. The lower outer side of the travel frame 7 is inlaid with a first drive motor 11. The first drive motor 11 drives a first gear 12 through a reducer. The first gear 12 is meshed with a rack 13 on its inner side. The rack 13 is horizontally fixedly installed on the outer side of the upper end of the manufacturing table 1. Limit plates are fixedly installed at both ends of the rack 13, so that the limit plates can block and limit the two ends of the rack 13. The outer side of the first gear 12 and the rack 13 is covered with a transparent protective cover (not shown in the figure), so that the transmission area of ​​the first gear 12 and the rack 13 is shielded and protected by the transparent cover. This utility model also includes a second drive motor 14 embedded and fixedly installed on the inner side of the upper end of the travel frame 7. The second drive motor 14 is driven by a second gear 15 through a reducer. The upper end of the second gear 15 is meshed with a half gear 16, and limit blocks are fixedly installed at both ends of the half gear 16, so that the limit blocks block the two ends of the half gear 16 to block and limit. The half gear 16 is fixedly installed on the outer curved surface of the side end of the shaft column 8. The air duct 3 is fixedly installed on the inner side of the shaft column 8. The upper end of the air duct 3 is fixedly installed with a mounting bracket 17. The nozzle 2 is fixedly installed through the upper end of the mounting bracket 17, and the lower end of the nozzle 2 faces the inside of the air duct 3.

[0022] In this embodiment, the polycrystalline alumina colloidal solution is sprayed downward at high speed through the nozzle 2. When the polycrystalline alumina colloidal solution is sprayed downward at high speed, the shear force of the airflow inside the air duct 3 and the surface tension of the sol work together to break up and fiberize the colloidal jet. At the same time, the fiberized polycrystalline alumina fibers will be laid down from the lower end of the air duct 3 to the upper end of the collection net 4 to form an initial fiber layer. When the polycrystalline alumina fibers are laid down to the upper end of the collection net 4, the controller controls the first drive motor 11 to start. When the first drive motor 11 is started, it drives the first gear 12 to rotate through the reducer. When the first gear 12 rotates, it will convert the rotational motion into the linear displacement of the stroke frame 7 through the force generated by meshing with the rack 13. When the stroke frame 7 moves linearly, it will drive the slide 10 to move linearly along the outer end of the slide rail 9, so that the slide rail 9 and the slide 10 can limit the linear movement of the stroke frame 7. When the stroke frame 7 moves linearly, it will simultaneously drive the air duct 3 and the nozzle 2 to move linearly, so that the polycrystalline alumina fibers will move back and forth in a straight line and overlap on the upper end of the collection net 4. Simultaneously, the controller activates the second drive motor 14. When the second drive motor 14 is activated, it drives the second gear 15 to move intermittently through the reducer. When the second gear 15 moves intermittently, it meshes with and drives the half gear 16 to rotate intermittently. When the half gear 16 rotates intermittently, it drives the shaft column 8 to rotate intermittently. When the shaft column 8 rotates intermittently, it synchronously drives the air duct 3 and the nozzle 2 to swing and adjust intermittently. This allows the polycrystalline alumina fibers to be intermittently swung and adjusted at the laying angle while being cross-laid in front and behind, so that the polycrystalline alumina fibers are evenly cross-laid on the upper end of the collection net 4. Compared with the traditional fixed vertical laying, this further improves the fiber uniformity of the polycrystalline alumina fiber liner.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An apparatus for manufacturing polycrystalline alumina fiber liners, characterized in that, include: The manufacturing table (1), nozzle (2), air duct (3) and collection net (4) are used to spray out polycrystalline alumina colloidal solution, and then the sprayed polycrystalline alumina colloidal solution is stretched and fiberized through the air duct (3), and the stretched polycrystalline alumina fibers are collected through the collection net (4). Among them, the upper end of the manufacturing table (1) is provided with a stroke frame (7) that moves back and forth linearly, and the upper end of the stroke frame (7) is provided with a rotating adjustment shaft (8). The forward and backward linear movement of the stroke frame (7) synchronously drives the forward and backward linear movement of the shaft (8). Through the forward and backward linear movement and rotation adjustment of the shaft (8), the nozzle (2) and the air duct (3) are synchronously driven to move back and forth linearly and adjust the swing angle, so that the polycrystalline alumina fibers are evenly cross-layered on the upper end of the collection net (4).

2. The apparatus for manufacturing polycrystalline alumina fiber liner according to claim 1, characterized in that, It also includes a slide rail (9), a slide block (10), a first drive motor (11), a first gear (12), and a rack (13). The slide block (10) is fitted and slids on the outer end of the slide rail (9), so that the slide block (10) can be linearly moved and limited by the slide rail (9). The stroke frame (7) is fixedly installed on the outer end of the slide block (10). The first drive motor (11) is embedded and fixed on the outer side of the lower end of the stroke frame (7). The first gear (12) is connected to the first drive motor (11) through a reducer, so that the first drive motor (11) drives the first gear (12) to rotate. The rack (13) meshes with the first gear (12) and is horizontally fixed on the outer side of the upper end of the manufacturing table (1), so that when the first gear (12) rotates, the rotational motion is converted into the linear displacement of the stroke frame (7) by the force generated by meshing with the rack (13).

3. The apparatus for manufacturing polycrystalline alumina fiber liner according to claim 2, characterized in that, There are two slide rails (9), which are symmetrically fixed on both sides of the upper end of the manufacturing table (1). Limiting plates are fixedly installed at both ends of the rack (13) so that the limiting plates can block and limit the two ends of the rack (13). The outer sides of the first gear (12) and the rack (13) are covered with transparent protective covers so that the transmission area of ​​the first gear (12) and the rack (13) can be shielded and protected by the transparent covers.

4. The apparatus for manufacturing polycrystalline alumina fiber liner according to claim 1 or 2, characterized in that, It also includes a second drive motor (14), a second gear (15), a half gear (16), and a mounting bracket (17). The second drive motor (14) is embedded and fixedly installed on the inner side of the upper end of the travel frame (7). The second gear (15) is connected to the second drive motor (14) through a reducer, so that the second drive motor (14) drives the second gear (15) to rotate intermittently. The half gear (16) is meshed with the upper end of the second gear (15). At the same time, the half gear (16) is fixedly installed on the outer curved surface of the side end of the shaft column (8). The air duct (3) is fixedly installed on the inner side of the shaft column (8), so that when the second gear (15) rotates intermittently, it will drive the air duct (3) to swing intermittently.

5. The apparatus for manufacturing polycrystalline alumina fiber liner according to claim 4, characterized in that, Limiting blocks are fixedly installed at both ends of the half gear (16) so that the two ends of the half gear (16) are blocked and limited by the limiting blocks. The mounting bracket (17) is fixedly installed at the upper end of the air duct (3). The nozzle (2) is fixedly installed through the upper end of the mounting bracket (17), and the lower end of the nozzle (2) faces the inside of the air duct (3).

6. The apparatus for manufacturing polycrystalline alumina fiber liner according to claim 1, characterized in that, The manufacturing table (1) has a through-hole for a mounting groove (5), and a mounting boss (6) is fixedly installed on the inner wall of the mounting groove (5). The collection net (4) is detachably installed on the upper end of the mounting boss (6), so that the collection net (4) is detachably supported and limited by the mounting boss (6).

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