Thread throwing equipment for producing alumina fibers

Abstract

The invention provides thread throwing equipment for producing alumina fibers, and relates to the field of thread throwing equipment, the thread throwing equipment comprises a shell, a rotating shaft and a thread throwing disc which are arranged below a discharging port, the rotating shaft is hollow, and a discharging assembly is arranged in the rotating shaft. The at least two discharging holes are formed in the charging tray and matched with the stirring blades making contact with the top face of the charging tray, so that colloidal spinning stock solution accumulation and blockage are avoided, raw materials are evenly mixed, and the problem that traditional single-hole discharging is uneven is solved; a vibration part in the material guide assembly drives a material disc to shake up and down, and a material conveying guide rail with an adjustable angle is matched, so that the blanking speed can be flexibly regulated and controlled according to the concentration of a spinning stock solution, and different production requirements are met; the connecting rod assembly can synchronously adjust the angles of the multiple sets of conveying guide rails, the vibration part can be in linkage with the conveying guide rails to rotate at high frequency for material throwing, the discharging efficiency and the raw material utilization rate are greatly improved, the overall structure is stable and reliable, and the continuity of thread throwing production and the product quality are effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of spinning equipment, and more specifically, to a spinning equipment for producing alumina fibers. Background Technology

[0002] Alumina fibers can be used for extended periods at high temperatures and possess characteristics such as low thermal conductivity, low slag content, low specific heat capacity, and good high-temperature resilience. They are widely used in high-temperature kilns, automotive exhaust treatment, aerospace, and other fields. Existing technologies for the production of alumina fibers by spinning can refer to the spinning equipment for producing alumina fibers applied for under application number "201922487885.3". However, the above equipment has the following problems during use: Problem 1: In the existing technology, the feed hole is a single feed hole, and the spinning solution of alumina fiber is in colloidal form, which can easily lead to problems such as material blockage and uneven feeding to the rotating shaft. Question 2: In the existing technology, the feeding speed into the spinning disc is not adjustable, so the feeding speed of the spinning solution for alumina fibers of different concentrations is different, which affects the actual use effect. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides a spinning device for producing alumina fibers, which aims to improve the problems of uneven feeding and non-adjustable feeding speed.

[0004] The present invention is implemented as follows: The present invention provides a spinning device for producing alumina fibers, including a housing, a rotating shaft, and a spinning disc disposed below the feeding port. The rotating shaft is hollow and has a feeding assembly disposed therein. The feeding assembly includes: a material tray with at least two feeding holes and a stirring part containing stirring blades, the stirring blades located at the bottom contacting the top surface of the material tray; a material guiding assembly disposed directly below the material tray and having a vibrating part inside for driving the material tray to shake up and down; in addition, the side wall of the material guiding assembly is provided with multiple sets of angle-adjustable conveying guide rails, and the conveying guide rails are located directly below the feeding holes.

[0005] Preferably, the stirring part includes a connecting seat that rotates on the top of the material tray, the connecting seat having a groove structure, and the stirring blades being disposed on the outer wall of the connecting seat.

[0006] Preferably, the vibrating part is one of a cylinder, a vibration motor, or a cam transmission assembly.

[0007] Preferably, the material guiding component has a hollow cylindrical structure and its outer wall is provided with multiple vertical mounting grooves, and the material conveying guide rail is rotatably disposed in the mounting grooves.

[0008] Preferably, the material conveying guide rail has a U-shaped structure, and the angle adjustment of the material conveying guide rail is driven by a linkage assembly; The linkage assembly includes linkages and their drive seats. One end of each linkage is rotatably mounted on the drive seat, and the other end is rotatably mounted on the material conveying guide rail. The linkages drive the material conveying guide rail to rotate within the mounting groove by moving the drive seat up and down.

[0009] Preferably, a feeding pipe is provided at the lower end of the feeding port, a connecting platform is fixedly connected to the top of the material guiding assembly, and the connecting platform is detachably installed at the end of the feeding pipe; the material tray is installed inside the feeding pipe in a sliding manner.

[0010] Preferably, the top of the connecting platform is provided with a rotating drive guide sleeve, the outer wall of the rotating drive guide sleeve is provided with a spiral groove, and the inner wall of the connecting seat is provided with a drive protrusion, which slides along the inner wall of the spiral groove.

[0011] Preferably, the drive seat is disposed inside the hollow cavity of the material guiding assembly, and the drive seat includes a fixed seat and a movable seat; the fixed seat is fixed inside the hollow cavity of the material guiding assembly, the movable seat is slidably mounted on the fixed seat, and one end of the connecting rod is mounted on the outer wall of the movable seat.

[0012] Preferably, the movable seat includes an upper sliding seat and a lower buffer seat, and one end of the connecting rod is installed on the outer wall of the lower buffer seat.

[0013] Preferably, the vibrating part is a cylinder, and the output end of the vibrating part passes through the drive seat, the connecting platform and the rotation drive guide sleeve in sequence and is fixedly installed on the connecting seat; the outer wall of the lower buffer seat is provided with an abutment part whose position can be adjusted up and down, and the outer wall of the vibrating part is provided with an actuating part that is aligned with the abutment part. When the actuating part abuts the abutment part, it drives the lower buffer seat to move along the up and down movement trajectory of the actuating part.

[0014] The beneficial effects of this invention are as follows: By setting at least two feeding holes in the feed tray and combining them with stirring blades that contact the top surface of the feed tray, this invention avoids the accumulation and blockage of colloidal spinning solution and achieves uniform mixing of raw materials, solving the problem of uneven feeding in traditional single-hole feeding. The vibrating part in the feeding guide assembly drives the feed tray to shake up and down, and with the angle-adjustable feeding guide rail, the feeding speed can be flexibly adjusted according to the concentration of the spinning solution to adapt to different production needs. The connecting rod assembly can simultaneously adjust the angle of multiple sets of feeding guide rails, and the vibrating part can link the feeding guide rails to rotate at high frequency to throw the material, which greatly improves the feeding efficiency and raw material utilization rate. The overall structure is stable and reliable, effectively ensuring the continuity of spinning production and product quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a spinning device for producing alumina fibers provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a spinning device for producing alumina fibers provided by an embodiment of the present invention; Figure 3 It is a structural diagram of the material tray, mixing section, material guiding assembly, material conveying guide rail and drive base; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a structural diagram of the rotation drive guide sleeve.

[0017] In the diagram: 1. Rotating shaft; 2. Spinning disc; 3. Material tray; 30. Feeding hole; 4. Stirring part; 40. Stirring blade; 5. Material guiding assembly; 50. Connecting platform; 51. Rotary drive guide sleeve; 510. Spiral groove; 6. Material conveying guide rail; 7. Connecting rod; 70. Drive seat; 700. Fixed seat; 701. Moving seat; 7010. Upper sliding seat; 7011. Lower buffer seat; 8. Abutting part; 9. Actuating part. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0019] Example 1 (refer to) Figures 1-4A spinning device for producing alumina fibers includes a housing, a rotating shaft 1, and a spinning disc 2 located below the feed inlet, all of which are prior art. For specific operating methods, refer to the application "A spinning device for producing alumina fibers" with application number "2019224878853". The drive mechanism drives the rotating shaft 1 to rotate, providing power for its high-speed rotation. The spinning disc 2 is fixed to the lower end of the rotating shaft 1 by bolts or other mechanical structures. The spinning disc 2 has an internal cavity structure, and its sidewall has nozzles. After the alumina fiber spinning solution enters the cavity structure of the spinning disc 2, it is spun out from the nozzles as the spinning disc 2 rotates. The rotational speed of the spinning disc 2 can be 3000 to 8000 r / min.

[0020] The feeding port corresponds to the center of the rotating shaft 1, which is hollow and connected to the internal cavity of the spinning disc 2. Through the transition of the rotating shaft 1, the spinning solution of alumina fiber is transferred from the feeding port to the spinning disc 2.

[0021] To facilitate the accurate injection of the alumina fiber spinning solution from the feed port into the rotating shaft 1, in some embodiments, a feed tube is provided at the lower end of the feed port. The inner diameter of the feed tube is greater than or equal to the inner diameter of the feed port, while the outer diameter of the feed tube is equal to the inner diameter of the rotating shaft 1. The feed tube extends into the rotating shaft 1 to prevent the alumina fiber spinning solution from leaking outwards from the top sidewall of the rotating shaft 1. The location of the feed tube can be referenced from [reference needed]. Figure 3 That is, the feeding pipe is located on the outside of the material tray 3.

[0022] This embodiment improves the feeding component in the prior art. The improved feeding component overcomes the drawbacks of single-hole feeding in the prior art and also addresses the problem of the feeding speed being unadjustable. The specific improvements are as follows: Refer to... Figure 2 , Figure 3 and Figure 4 The feeding assembly consists of two parts: a material tray 3 and a material guiding assembly 5.

[0023] In some embodiments, the material tray 3 is provided with at least two feeding holes 30. Furthermore, this embodiment improves upon the single-hole feeding in the prior art by realizing multi-hole feeding, which helps to improve the uniformity of subsequent feeding. In addition, the material tray 3 is provided with a stirring part 4 containing stirring blades 40. The stirring blades 40 located at the bottom are in contact with the top surface of the material tray 3. The stirring blades 40 rotate with the stirring part 4. During the rotation, the bottom of the stirring blades 40 scrapes the top surface of the material tray 3 to prevent material from piling up on the top of the material tray 3. At the same time, the stirring blades 40 in other locations rotate with the stirring part 4, causing them to stir and mix the alumina fiber spinning solution on the material tray 3, making the alumina fiber spinning solution more uniform.

[0024] Reference Figure 2 and Figure 3 The material tray 3 can be directly installed inside the rotating shaft 1. Preferably, it is installed in the feeding tube to avoid the rotation of the rotating shaft 1 from having an impact. When the feeding tube is installed, there is space between the rotating shaft 1 and the feeding port to facilitate the installation of the feeding tube and other driving components.

[0025] It should be added that: in the prior art, the inner diameter of a single feeding hole can be A. Therefore, in this embodiment, the inner diameter of a single feeding hole 30 is set to be at least 0.5A, so as to ensure that the feeding speed of the improved feeding hole 30 is greater than that of the prior art.

[0026] In other embodiments, the stirring unit 4 consists of a connecting seat that rotates on the top of the material tray 3. The connecting seat has a groove structure with the groove opening facing downwards, the top sealed, and the outer wall cylindrical. The connecting seat rotates on the material tray 3. Preferably, the outer wall of the connecting seat is provided with an anti-detachment flange. The top of the material tray 3 may be provided with a slide rail seat for rotating with the anti-detachment flange. The stirring blade 40 is disposed on the outer wall of the connecting seat. The material tray 3 can move with the movement of the connecting seat.

[0027] Reference Figure 2 , Figure 3 and Figure 4 The material guiding component 5 is structurally configured as follows: The material guiding component 5 is positioned directly below the material tray 3, and contains a vibrating part that drives the material tray 3 to vibrate up and down. In some embodiments, the vibrating part is one of a cylinder, a vibration motor, or a cam transmission assembly. This application does not describe the driving component of the vibrating part in detail; any driving part capable of controlling the up-and-down vibration of the material tray 3 is acceptable. Based on the arrangement of the stirring part 4, preferably, the vibrating part can drive the stirring part 4, thereby actuating the material tray 3 to vibrate up and down. Furthermore, the output end of the vibrating part acts on the inner top of the stirring part 4, causing the material tray 3 to vibrate along with the up-and-down vibration of the stirring part 4.

[0028] In some embodiments, to facilitate the installation of the material guiding component 5 and the storage of the alumina fiber spinning solution on the material tray 3, the installation of the material guiding component 5 is configured as follows: a connecting platform 50 is fixedly connected to the top of the material guiding component 5, and the connecting platform 50 is detachably installed at the end of the feeding pipe. The connection method can be bolt fastening, riveting or flange connection, etc. Preferably, the connecting platform 50 is a disc-shaped structure, which is provided with a dropping hole corresponding to the feeding hole 30, and a downward-extending dropping pipe can be provided at the bottom of the feeding hole 30. When the feeding pipe extends into the dropping hole, the gap between the material tray 3 and the connecting platform 50 is avoided when the material tray 3 shakes up and down, which would cause unstable feeding. The feed tray 3 is installed vertically inside the feed tube. The spinning solution of alumina fibers falling from the feed port is located above the feed tray 3 and between the feed tube. The outer diameter of the feed tray 3 is the same as the inner diameter of the feed tube to prevent the spinning solution of alumina fibers from leaking from the side wall. In some embodiments, an upwardly extending protective wall can also be provided, which slides in the inner wall of the feed tube. As the feed tray 3 vibrates up and down inside the feed tube, the inertia of the vibration easily vibrates the spinning solution of alumina fibers out of the feed hole 30 of the feed tray 3, preventing the feed hole 30 of the feed tray 3 from becoming blocked.

[0029] In some implementations, the feeding speed can be controlled by controlling the vibration speed of the feed tray 3. That is, the faster the vibration speed, the higher the vibration frequency of the alumina fiber spinning solution in the feeding hole 30 of the feed tray 3, and the faster the feeding; conversely, the feeding speed is slower.

[0030] In addition, in some embodiments, the rotation of the stirring unit 4 and the up-and-down shaking of the material tray 3 can be combined, that is, the rotation of the stirring unit 4 is accompanied by the up-and-down shaking of the material tray 3. The structure is set as follows: the top of the connecting platform 50 is provided with a rotation drive guide sleeve 51, as shown in the figure. Figure 5 After the connecting platform 50 is fixed, the position of the rotating drive guide sleeve 51 remains fixed. Furthermore, the outer wall of the rotating drive guide sleeve 51 is provided with a spiral groove 510. Further still, the inner wall of the connecting seat is provided with a driving protrusion. The driving protrusion slides along the inner wall of the spiral groove 510. When the connecting seat vibrates up and down with the vibrating part, since the rotating drive guide sleeve 51 remains fixed, the driving protrusion slides along the inner wall of the spiral groove 510. Through the force exerted by the spiral groove 510 on the driving protrusion, the stirring part 4 rotates as it moves up and down. Moreover, this rotation alternates between forward and reverse directions. For example, when the stirring part 4 moves downward, it rotates clockwise; when the stirring part 4 moves upward, it rotates counterclockwise.

[0031] In some embodiments, to reduce the friction between the spiral groove 510 and the drive protrusion, the end of the drive protrusion may be provided with a movable spherical sliding part. Based on the provision of the spherical sliding part, rolling friction is used to replace sliding friction, thereby reducing the friction.

[0032] In addition, this embodiment provides a flow control component for material feeding on the material guiding component 5, specifically configured as follows: the side wall of the material guiding component 5 is provided with multiple sets of angle-adjustable material feeding guides 6, and the material feeding guides 6 are located directly below the discharge hole 30. The spinning solution of alumina fibers falling from the discharge hole 30 falls onto the material feeding guides 6 and is guided by the inner wall of the material feeding guides 6. Furthermore, by adjusting the tilt angle of the material feeding guides 6, the tilting component of the gravity of the spinning solution of alumina fibers is controlled. The greater the tilting component of the spinning solution of alumina fibers along the direction of the material feeding guides 6, the faster the feeding; conversely, the smaller the tilting component of the spinning solution of alumina fibers along the direction of the material feeding guides 6, the slower the feeding.

[0033] Reference Figure 2 and Figure 3 Based on the setting of the material conveying guide rail 6, the material guiding component 5 is set as follows: the material guiding component 5 has a hollow cylindrical structure and its outer wall is provided with multiple vertical mounting grooves. The material conveying guide rail 6 is rotatably set in the mounting groove and can be rotated through the protruding rotating shafts set at both ends of the material conveying guide rail 6. The vibration part is concentrically set in the hollow inner bottom of the material guiding component 5, and the output end of the vibration part is set through the rotating drive guide sleeve 51. That is, the transmission component of the vibration part driving the stirring part 4 is set in the rotating drive guide sleeve 51 to avoid motion interference between the rotating drive guide sleeve 51 and the drive protrusion.

[0034] In some embodiments, to ensure stable material feeding, the feeding guide 6 has a U-shaped structure, wherein the width of the feeding guide 6 is at least the diameter of the feeding hole 30, so as to ensure that the spinning solution of the alumina fiber falling from the feeding hole 30 accurately falls onto the feeding guide 6.

[0035] Reference Figure 2 , Figure 3 and Figure 4 This embodiment also discloses a drive transmission component for adjusting the angle of multiple material conveying guide rails 6. The drive transmission component is driven by a linkage assembly, specifically configured as follows: the linkage assembly includes a linkage 7 and a drive seat 70. One end of each linkage 7 is rotatably mounted on the drive seat 70, and the other end is rotatably mounted on the material conveying guide rail 6. By moving the drive seat 70 up and down, the linkage 7 drives the material conveying guide rail 6 to rotate in the mounting groove. In this embodiment, adjusting the rotation angle of the multiple material conveying guide rails 6 is achieved by adjusting the up and down position of the drive seat 70, which in turn causes the material conveying guide rail 6 to rotate in the mounting groove via a protruding pivot.

[0036] Reference Figure 2 , Figure 3 and Figure 4In some embodiments, the drive seat 70 is disposed inside the hollow cavity of the material guiding assembly 5, and the drive seat 70 includes a fixed seat 700 and a movable seat 701. The fixed seat 700 is fixed inside the hollow cavity of the material guiding assembly 5. In some embodiments, it can be fixed to the inner wall of the hollow cavity of the material guiding assembly 5 by multiple connecting walls. Preferably, the fixed seat 700 has an annular structure, and its hollow structure allows the vibrating part to pass through the fixed seat 700 for installation. In addition, the movable seat 701 is slidably mounted on the fixed seat 700, and one end of the connecting rod 7 is mounted on the outer wall of the movable seat 701. During implementation, the up and down movement of the movable seat 701 adjusts the tilt angle of the material conveying guide rail 6 through the connecting rod 7.

[0037] It should be added that, in some embodiments, the driving structure for moving the movable seat 701 up and down and the structural composition of the movable seat 701 are set as follows: First, the structure of the movable seat 701 is improved as follows: The movable seat 701 includes an upper slide seat 7010 and a lower buffer seat 7011, wherein the upper slide seat 7010 and the lower buffer seat 7011 can be connected by a structure such as a sliding sleeve or a spring to ensure that the upper slide seat 7010 and the lower buffer seat 7011 can slide up and down without disengaging from each other. Other structures besides sliding sleeves or springs are all acceptable and are not limited here. In addition, one end of the connecting rod 7 is installed on the outer wall of the lower buffer seat 7011.

[0038] Secondly, in some embodiments, the drive structure for moving the movable seat 701 up and down is configured as follows: a driven gear may be provided on the outer wall of the upper slide 7010, and the upper slide 7010 and the fixed seat 700 are threadedly connected, that is, the outer wall of the fixed seat 700 is provided with a threaded tube, the upper slide 7010 is threadedly sleeved on the outer wall of the threaded tube, and the upper slide 7010 and the lower buffer seat 7011 are rotatably connected. The driven gear is driven by an externally mounted drive gear, and the length of the drive gear is greater than that of the driven gear, causing the drive gear and the driven gear to always mesh, and the meshing state is not changed by the up and down movement of the upper slide 7010. During implementation, the drive gear can be driven by an external drive shaft, which can be driven by an external motor. The drive gear drives the driven gear to rotate. Based on the threaded fit between the upper slide 7010 and the threaded tube, the upper slide 7010 can be adjusted to move up and down. Through a structure such as a sliding sleeve or spring, the lower buffer seat 7011 moves up and down with the upper slide 7010, thereby adjusting the tilt angle of the material conveying guide rail 6.

[0039] In addition, this embodiment can also adjust the feeding speed of the material conveying guide 6 based on the structure of the vibrating part. This adjustment relies on the inertial ejection of the material conveying guide 6 when it rotates at high frequency with the protruding rotating shaft as the rotation center. One embodiment can be set as follows: the outer wall of the lower buffer seat 7011 is provided with an abutment part 8 whose position can be adjusted up and down, and the outer wall of the vibrating part is provided with an actuator part 9 that is aligned with the abutment part 8. Preferably, the vibrating part can be a linear drive component such as a cylinder, and the actuator part 9 can be an L-shaped structure. The vertical end of the actuator part 9 abuts the abutment part 8.

[0040] It should be added that the driving force for adjusting the up and down of the contact part 8 can be a linear drive component set on the outer wall of the lower buffer seat 7011, such as a cylinder, telescopic rod, or gear and rack transmission assembly. By adjusting the initial position of the contact part 8, the contact state between the contact part 8 and the actuator 9 can be controlled. For example, after the contact part 8 is driven, the initial state of the contact part 8 is located on the movement trajectory of the actuator 9. When the actuator 9 follows the movement of the vibrating part, it will actuate the contact part 8, thereby triggering the vibration of the conveying guide rail 6 through the lower buffer seat 7011, causing the material on the conveying guide rail 6 to accelerate the feeding due to inertia. In addition, by controlling the initial position of the contact part 8, the amplitude of its vibration with the actuator 9 can be controlled, thereby further controlling the feeding speed. That is, the greater the rotation amplitude of the conveying guide rail 6, the faster the feeding; conversely, the smaller the rotation amplitude of the conveying guide rail 6, the slower the feeding. When the contact part 8 is not initially located on the movement trajectory of the actuating part 9, the material conveying guide 6 does not rotate with the operation of the vibrating part, and the material conveying guide 6 maintains a specific tilt angle.

[0041] In this embodiment, the initial position of the contact part 8 can be adjusted by driving the linear drive component on the outer wall of the lower buffer seat 7011, or by adjusting the initial position of the moving seat 701. Through the combined effect of these two adjustments, the initial position of the contact part 8 can be precisely controlled, which helps to precisely control the feeding speed of the alumina fiber spinning solution on the feeding guide rail 6.

[0042] When the actuator 9 contacts the contact part 8, it drives the lower buffer seat 7011 to move up and down along the trajectory of the actuator 9. Due to the high-frequency vibration of the vibrating part, the actuator 9 intermittently contacts the contact part 8 at high frequency. After the contact part 8 is subjected to force, it drives the lower buffer seat 7011 to move upward and then downward under its own gravity. This causes the feeding guide 6 to rotate intermittently at high frequency with the raised shaft. The spinning solution of the alumina fiber in the feeding guide 6 is thrown into the internal cavity structure of the spinning disc 2 under the action of centrifugal force or inertia.

[0043] In this embodiment, by providing at least two feeding holes 30, and simultaneously cooperating with the stirring blades 40 on the stirring unit 4, the alumina fiber spinning solution is prevented from becoming clogged, ensuring uniform feeding. Furthermore, based on the rotation drive guide sleeve 51 and the drive protrusion, the stirring unit 4 rotates while the material tray 3 vibrates up and down, thus mixing the alumina fiber spinning solution above the material tray 3.

[0044] In this embodiment, the vibration frequency of the vibrating part controls the vibration speed of the material tray 3, thereby controlling the feeding speed. Secondly, the feeding speed can also be controlled by adjusting the tilt angle of the feeding guide 6 to regulate the gravitational tilting component of the alumina fiber spinning solution along the feeding guide 6. Finally, the tilt angle adjustment structure of the feeding guide 6 in this application can be connected to the vibrating part, so that when the vibrating part is working, the transmission structure continuously causes the feeding guide 6 to rotate around the raised shaft. Under the action of gravity and inertia, the feeding guide 6 is quickly thrown into the internal cavity structure of the spinning disc 2, so that the faster the vibrating part vibrates, the faster the material tray 3 and the feeding guide 6 feed, and the three are synchronized and coordinated. In addition, the feeding guide 6 can be selected to work synchronously with the vibrating part, which helps to accurately control the feeding speed of the alumina fiber spinning solution.

[0045] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A spinning device for producing alumina fibers, comprising a housing arranged below a feed opening, a rotating shaft (1) and a spinning disk (2), characterized in that The rotating shaft (1) is hollow, and a discharging assembly is arranged in the rotating shaft (1); the discharging assembly comprises a tray (3) provided with at least two discharging holes (30) and a stirring part (4) provided with stirring blades (40), the lower stirring blades (40) are in contact with the top surface of the tray (3), and a material guiding assembly (5) is arranged directly below the tray (3) and is provided with a vibration part for driving the tray (3) to vibrate up and down; in addition, the side wall of the material guiding assembly (5) is provided with a plurality of angle-adjustable material conveying guide rails (6), and the material conveying guide rails (6) are arranged directly below the discharging holes (30).

2. The spinning apparatus for producing alumina fibers according to claim 1, wherein The stirring part (4) comprises a connecting seat rotating on the top of the tray (3), the connecting seat is in a groove structure, and the stirring blades (40) are arranged on the outer wall of the connecting seat.

3. The spinning apparatus for producing alumina fibers according to claim 2, wherein The vibration part is one of a pneumatic cylinder, a vibration motor and a cam transmission assembly.

4. The spinning apparatus for producing alumina fibers according to claim 3, wherein The material guiding assembly (5) is in a hollow column structure, and the outer wall of the material guiding assembly (5) is provided with a plurality of vertical mounting grooves, and the material conveying guide rails (6) are rotatably arranged in the mounting grooves.

5. The spinning apparatus for producing alumina fibers according to claim 4, wherein The material conveying guide rails (6) are in a U-shaped structure, and the angle adjustment of the material conveying guide rails (6) is driven by a connecting rod assembly; the connecting rod assembly comprises connecting rods (7) and a driving seat (70), one end of each of the connecting rods (7) is rotatably arranged on the driving seat (70), the other end of each of the connecting rods (7) is rotatably arranged on the material conveying guide rail (6), and the connecting rods (7) drive the material conveying guide rail (6) to rotate in the mounting groove by the up-down movement of the driving seat (70).

6. The spinning apparatus for producing alumina fibers according to claim 5, wherein A discharging pipe is arranged at the lower end of the discharging hole, a connecting table (50) is fixedly connected to the top of the material guiding assembly (5), the connecting table (50) is detachably arranged at the end of the discharging pipe, and the tray (3) slides up and down in the discharging pipe.

7. The spinning apparatus for producing alumina fibers according to claim 6 wherein, A rotating driving guide rail sleeve (51) is arranged on the top of the connecting table (50), the outer wall of the rotating driving guide rail sleeve (51) is provided with a spiral groove (510), the inner wall of the connecting seat is provided with a driving protrusion, and the driving protrusion slides along the inner wall of the spiral groove (510).

8. The spinning apparatus for producing alumina fibers according to claim 7, wherein The driving seat (70) is arranged in the hollow cavity of the material guiding assembly (5), and the driving seat (70) comprises a fixed seat (700) and a movable seat (701); the fixed seat (700) is fixed in the hollow cavity of the material guiding assembly (5), the movable seat (701) is slidably arranged on the fixed seat (700), and one end of the connecting rod (7) is arranged on the outer wall of the movable seat (701).

9. The spinning apparatus for producing alumina fibers according to claim 8, wherein The movable seat (701) comprises an upper sliding seat (7010) and a lower buffer seat (7011), and one end of the connecting rod (7) is arranged on the outer wall of the lower buffer seat (7011).

10. The spinning apparatus for producing alumina fibers according to claim 9, wherein The vibration part is a cylinder, and an output end of the vibration part penetrates a driving base (70), a connecting table (50) and a rotating driving guide rail sleeve (51) in sequence and is fixedly installed on a connecting base; an outer wall of the lower buffer base (7011) is provided with a position-adjustable abutting part (8), an outer wall of the vibration part is provided with an actuating part (9) in position with the abutting part (8), and when the actuating part (9) abuts against the abutting part (8), the lower buffer base (7011) is driven to move along the up-down movement track of the actuating part (9).

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