A forming apparatus for an alumina fiber high-temperature-resistant polycrystal film

Abstract

The utility model belongs to the field of forming equipment, concretely relates to a kind of forming equipment of alumina fibre high-temperature-resistant polycrystalline membrane, including base, the upper end middle part of base is provided with conveyor belt, the upper end edge of base is fixedly connected with support, the top of support is fixedly connected with top plate, the right side of top plate is provided with scraping mechanism, the inside of top plate is fixedly connected with hopper, and hopper is set through top plate, the top of hopper is fixedly connected with bin cover, the upper end middle part of bin cover is fixedly connected with motor.The utility model is driven by motor by being provided with rotating shaft in hopper, rotating shaft drives stirring rod to carry out normal stirring to material, then through the periodic cooperation of slide pin and protruding block, high-frequency knocking to the inner wall of hopper is realized in the process of stirring, produces oscillation effect, effectively prevents alumina fibre slurry caking or deposition, significantly improves mixing uniformity.

Description

Technical Field

[0001] This utility model relates to the field of molding equipment technology, specifically to a molding equipment for alumina fiber high-temperature resistant polycrystalline film. Background Technology

[0002] Alumina fiber polycrystalline membranes are widely used in aerospace, high-temperature filtration, and new energy batteries due to their excellent high-temperature resistance, chemical stability, and mechanical strength.

[0003] A search revealed a utility model patent with patent authorization announcement number CN114591091B, which discloses a high-temperature resistant polycrystalline heat-insulating fiber production device and process. The high-temperature resistant polycrystalline heat-insulating fiber production device includes: a gel preparation module, a centrifugal fiber forming module, a heat treatment module, a detection module, and a fiber forming control module. The fiber forming control module controls the detection module to detect the performance parameters of the alumina fiber semi-finished product and the production process parameters in each processing step of the alumina fiber preparation process, and adjusts the alumina fiber preparation process parameters according to the detection data to adjust the alumina fiber preparation process parameters to the actual preparation standard.

[0004] Because alumina fiber slurry has high viscosity, traditional mixing methods can easily cause fiber sedimentation, affecting the uniformity of the slurry. At the same time, after the slurry is discharged from the silo, during the process of spreading and forming it through the coating equipment, the existing coating equipment mostly uses fixed scrapers, which makes it difficult to flexibly adjust the width and thickness of the film layer, resulting in rough edges or affecting the quality of the product. Utility Model Content

[0005] The purpose of this invention is to provide a molding equipment for high-temperature resistant polycrystalline films of alumina fibers, which solves the problem of uneven mixing of alumina fiber slurry in the prior art, and also solves the problem of neat edges after product molding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding device for alumina fiber high-temperature resistant polycrystalline film, comprising a base, a conveyor belt disposed at the upper middle part of the base, a bracket fixedly connected to the upper edge of the base, a top plate fixedly connected to the top of the bracket, a leveling mechanism disposed on the right side of the top plate, a hopper fixedly connected inside the top plate, the hopper penetrating the top plate, a hopper cover fixedly connected to the top of the hopper, a motor fixedly connected to the upper middle part of the hopper cover, an output shaft of the motor penetrating the hopper cover and connected to the hopper cover via a bearing, a rotating shaft fixedly connected to the end of the output shaft, and a stirring rod fixedly connected to the shaft body of the rotating shaft.

[0007] Preferably, a vacuum pipe is fixedly connected inside the bin cover, and the vacuum pipe penetrates the bin cover. A feed plug is slidably connected inside the bin cover, and the feed plug penetrates the bin cover. The vacuum pipe is used by a vacuum pump to create a vacuum inside the bin, and the feed plug is used to seal the feed inlet.

[0008] Preferably, a hollow sleeve is fixedly connected to the shaft of the rotating shaft, and a sliding pin is slidably connected inside the hollow sleeve. The arc end of the sliding pin abuts against the inner wall of the hopper. A spring is installed inside the hollow sleeve, and a protrusion is fixedly connected to the inner wall of the hopper, with the position of the protrusion corresponding to the position of the arc end of the sliding pin. As the sliding pin rotates with the rotating shaft, it will periodically retract due to the reaction force of the protrusion. After the two become misaligned, the sliding pin will return to its original position and strike the inner wall of the hopper, thereby vibrating the material being stirred in the hopper and improving the mixing effect.

[0009] Preferably, one end of the spring is fixedly connected to the sliding pin, and the other end of the spring is fixedly connected to the inner surface of the hollow sleeve. The reaction force of the spring can act on the sliding pin.

[0010] Preferably, both the sliding pin and the hollow sleeve are fixedly connected to a retaining ring, and a protective sleeve is fixedly connected between the two retaining rings. The protective sleeve can be made of plastic or rubber corrugated tubing, which protects the spring without affecting the force-bearing expansion and contraction of the sliding pin.

[0011] Preferably, the leveling mechanism includes a connecting frame fixedly connected to the top plate, a scraper fixedly connected to the end of the connecting frame, two sliders slidably connected inside the scraper, and the sliders are configured to penetrate the scraper. A connecting rod is fixedly connected to the end of the slider near the hopper, and a stop bar is fixedly connected to the end of the connecting rod. The stop bar is slidably connected to the conveyor belt. Two fixing blocks are fixedly connected to one side of the raw material hopper of the scraper, and a bidirectional screw is mounted between the two fixing blocks through a bearing. The bidirectional screw penetrates the slider and is threadedly connected to the slider. By setting up the leveling mechanism, the material flowing from the hopper to the conveyor belt is leveled and shaped. Simultaneously, the adjustability of the sliders allows for adjustment of the width of the material during flattening, thereby controlling the width of the product.

[0012] Preferably, a knob is fixedly connected to the middle section of the bidirectional screw, and the knob and the bidirectional screw are an integral structure. The knob facilitates the rotation of the bidirectional screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model sets up a rotating shaft driven by an electric motor in the hopper. The rotating shaft drives the stirring rod to stir the material normally. Then, through the periodic cooperation of the sliding pin and the protrusion, the inner wall of the hopper is hit at high frequency during the stirring process, generating a vibration effect, which effectively prevents the alumina fiber slurry from clumping or depositing, and significantly improves the mixing uniformity.

[0015] 2. This utility model features a leveling mechanism installed on the top plate of the fixed silo. The leveling mechanism adopts a design that adjusts the spacing of the baffles by a two-way screw linkage. The material spreading width can be quickly adjusted by turning a knob to adapt to the production needs of products of different specifications. The baffles fit tightly against the conveyor belt to ensure that the edge of the film layer coated by the scraper is neat and improves product quality. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Base; 2. Conveyor belt; 3. Support; 4. Top plate; 5. Scraping mechanism; 6. Hopper; 7. Hopper cover; 8. Motor; 9. Rotating shaft; 10. Stirring rod; 11. Hollow sleeve; 12. Sliding pin; 13. Spring; 14. Fixing ring; 15. Protective sleeve; 16. Protrusion; 17. Vacuum pipe; 18. Feed plug; 51. Connecting frame; 52. Scraper; 53. Slider; 54. Connecting rod; 55. Stop bar; 56. Fixing block; 57. Bidirectional screw; 58. Knob. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 3A molding device for high-temperature resistant polycrystalline alumina fiber film includes a base 1, a conveyor belt 2 disposed at the upper center of the base 1, a support 3 fixedly connected to the upper edge of the base 1, a top plate 4 fixedly connected to the top of the support 3, a hopper 6 fixedly connected inside the top plate 4 and extending through the top plate 4, a valve disposed at the discharge port at the bottom of the hopper 6, a hopper cover 7 fixedly connected to the top of the hopper 6, a vacuum pipe 17 fixedly connected inside the hopper cover 7 and extending through the hopper cover 7, a valve disposed on the vacuum pipe 17, and a feed plug 18 slidably connected inside the hopper cover 7 and extending through the hopper cover 7. The vacuum pipe 17 is used for vacuuming the hopper 6, and the feed plug 18 is used for sealing the feed port.

[0023] Please see Figure 3 , Figure 4 A motor 8 is fixedly connected to the upper middle part of the silo cover 7. The output shaft of the motor 8 passes through the silo cover 7 and is connected to the silo cover 7 via a bearing. A rotating shaft 9 is fixedly connected to the end of the output shaft. A stirring rod 10 is fixedly connected to the shaft of the rotating shaft 9. A hollow sleeve 11 is fixedly connected to the shaft of the rotating shaft 9. A sliding pin 12 is slidably connected inside the hollow sleeve 11. The arc end of the sliding pin 12 abuts against the inner wall of the silo 6. A spring 13 is installed inside the hollow sleeve 11. One end of the spring 13 is fixedly connected to the sliding pin 12, and the other end of the spring 13 is fixedly connected to the inner surface of the hollow sleeve 11. The reaction force of the spring 13 can act on the sliding pin 12. A fixing ring 14 is fixedly connected to both the sliding pin 12 and the hollow sleeve 11. A protective sleeve 15 is fixedly connected between the two fixing rings 14. The protective sleeve 15 can be made of plastic or rubber corrugated tubing, which protects the spring 13 without affecting the force-bearing extension and contraction of the sliding pin 12. A protrusion 16 is fixedly connected to the inner wall of the hopper 6, and the position of the protrusion 16 corresponds to the position of the arc end of the sliding pin 12. As the sliding pin 12 rotates with the rotating shaft 9, it will periodically retract due to the reaction force of the protrusion 16. After the two become misaligned, the sliding pin 12 will return to its original position and strike the inner wall of the hopper 6, thereby vibrating the material being stirred within the hopper 6 and improving the mixing effect.

[0024] Please see Figure 1 , Figure 2 , Figure 3A leveling mechanism 5 is provided on the right side of the top plate 4. The leveling mechanism 5 has the function of leveling and shaping the material flowing from the hopper 6 to the conveyor belt 2. At the same time, the adjustability of the slider 53 can be used to adjust the width of the material when it is laid flat, thereby controlling the width of the product. The leveling mechanism 5 includes a connecting frame 51 fixedly connected to the top plate 4. A scraper 52 is fixedly connected to the end of the connecting frame 51. Two sliders 53 are slidably connected inside the scraper 52, and the sliders 53 are set through the scraper 52. A connecting rod 54 is fixedly connected to the end of the slider 53 near the hopper 6. A stop bar 55 is fixedly connected to the end of the connecting rod 54. The stop bar 55 is slidably connected to the conveyor belt 2. Two fixing blocks 56 are fixedly connected to one side of the scraper 52 in the raw material hopper 6. A bidirectional screw 57 is installed between the two fixing blocks 56 through a bearing. The bidirectional screw 57 passes through the slider 53 and is threadedly connected to the slider 53. A knob 58 is fixedly connected to the middle section of the bidirectional screw 57, and the knob 58 and the bidirectional screw 57 are an integral structure. The knob 58 facilitates the rotation of the bidirectional screw 57.

[0025] The specific implementation process of this utility model is as follows: In use, the motor 8 drives the rotating shaft 9 to rotate, which in turn drives the stirring rod 10 to rotate, thereby stirring and mixing the material in the hopper 6. At the same time, through the periodic cooperation of the sliding pin 12 and the protrusion 16, the inner wall of the hopper 6 is struck at high frequency during the stirring process, generating a vibration effect, which effectively prevents the alumina fiber slurry from clumping or depositing, and significantly improves the uniformity of mixing. After the material is mixed to a certain extent, the valve at the discharge port of the hopper 6 is opened, and the material falls onto the conveyor belt 2. Then, under the positioning and forming of the baffle 55 and the scraper 52, a film material is formed with neat edges. At the same time, by rotating the bidirectional screw 57 through the knob 58, the two sliders 53 are moved towards or away from each other. The sliders 53 provide the connecting rod 54 to drive the baffle 55 to move, thereby quickly adjusting the material spreading width to meet the production needs of different specifications of products.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding device for high-temperature resistant polycrystalline films of alumina fibers, comprising a base (1), characterized in that: A conveyor belt (2) is provided at the upper middle part of the base (1). A bracket (3) is fixedly connected to the upper edge of the base (1). A top plate (4) is fixedly connected to the top of the bracket (3). A scraping mechanism (5) is provided on the right side of the top plate (4). A hopper (6) is fixedly connected inside the top plate (4). The hopper (6) is set through the top plate (4). A hopper cover (7) is fixedly connected to the top of the hopper (6). A motor (8) is fixedly connected to the upper middle part of the hopper cover (7). The output shaft of the motor (8) passes through the hopper cover (7) and is connected to the hopper cover (7) through a bearing. A rotating shaft (9) is fixedly connected to the end of the output shaft. A stirring rod (10) is fixedly connected to the shaft of the rotating shaft (9).

2. The molding equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 1, characterized in that: The inside of the bin cover (7) is fixedly connected to a vacuum pipe (17), and the vacuum pipe (17) is set through the bin cover (7). The inside of the bin cover (7) is slidably connected to a feed plug (18), and the feed plug (18) is set through the bin cover (7).

3. The forming equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 1, characterized in that: A hollow sleeve (11) is fixedly connected to the shaft of the rotating shaft (9). A sliding pin (12) is slidably connected inside the hollow sleeve (11). The arc end of the sliding pin (12) abuts against the inner wall of the hopper (6). A spring (13) is provided inside the hollow sleeve (11). A protrusion (16) is fixedly connected to the inner wall of the hopper (6), and the position of the protrusion (16) corresponds to the position of the arc end of the sliding pin (12).

4. The molding equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 3, characterized in that: One end of the spring (13) is fixedly connected to the sliding pin (12), and the other end of the spring (13) is fixedly connected to the inner surface of the hollow sleeve (11).

5. The molding equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 3, characterized in that: Both the sliding pin (12) and the hollow sleeve (11) are fixedly connected to a fixing ring (14), and a protective sleeve (15) is fixedly connected between the two fixing rings (14).

6. The forming equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 1, characterized in that: The scraping mechanism (5) includes a connecting frame (51) fixedly connected to the top plate (4). A scraper (52) is fixedly connected to the end of the connecting frame (51). Two sliders (53) are slidably connected inside the scraper (52), and the sliders (53) are set through the scraper (52). A connecting rod (54) is fixedly connected to one end of the slider (53) near the hopper (6). A stop bar (55) is fixedly connected to the end of the connecting rod (54). The stop bar (55) is slidably connected to the conveyor belt (2). Two fixing blocks (56) are fixedly connected to one side of the scraper (52) in the raw material hopper (6). A bidirectional screw (57) is installed between the two fixing blocks (56) through a bearing. The bidirectional screw (57) passes through the slider (53) and is threadedly connected to the slider (53).

7. The forming equipment for alumina fiber high-temperature resistant polycrystalline film according to claim 6, characterized in that: A knob (58) is fixedly connected to the middle section of the bidirectional screw (57), and the knob (58) and the bidirectional screw (57) are an integral structure.

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