A glass fiber processing drawing sieve plate

Abstract

This application provides a fiber drawing spinneret for glass fiber processing. The spinneret includes a spinneret mechanism and a support mechanism. The spinneret mechanism includes a bracket, a refractory component, and a spinneret body. The bracket is located directly below the refractory component and can support or detach from it. The spinneret body is fixed to the upper surface of the refractory component. The refractory component passes through the bottom of the furnace so that the spinneret body is located at the bottom opening of the furnace. The support mechanism includes a support member, a guide rail, and a guide member. The guide rail is fixedly installed on the inclined surface of the furnace bottom. The guide member is slidably connected to the guide rail. The support member is fixedly connected below the guide member and can slide with the guide member. When the bracket detaches from the refractory component, the support member supports the refractory component and the spinneret body, thereby reducing the operational difficulty and safety risks of the replacement operation.

Description

Technical Field

[0001] This application relates to the field of glass fiber processing technology, and in particular to a glass fiber drawing stencil. Background Technology

[0002] In the processing and production of glass fiber, the drawing spinneret is a key component connecting the melting furnace and fiber forming. Its main function is to stably flow the high-temperature molten glass through the nozzles distributed at the bottom of the spinneret, thereby forming continuous glass fiber monofilaments.

[0003] To ensure that molten glass can be smoothly discharged by gravity, existing wire drawing bushings must be installed at the lowest liquid level in the furnace to meet the requirements of process fluid dynamics.

[0004] However, when the wire drawing stencil is damaged in a high-temperature and chemically corrosive environment, it needs to be replaced or repaired. Because it is located deep at the bottom of the furnace, it is difficult to remove the old stencil. Summary of the Invention

[0005] This application provides a fiber drawing stencil for glass fiber processing, which solves the problem of difficulty in disassembling old stencils. It is easy to disassemble and assemble, reduces the difficulty of operation and safety risks, and improves maintenance efficiency.

[0006] This application provides a glass fiber drawing spinneret, including a spinneret mechanism and a support mechanism. The spinneret mechanism includes a bracket, a refractory component, and a spinneret body. The bracket is located directly below the refractory component and can support or detach from it. The spinneret body is fixed to the upper surface of the refractory component. The refractory component passes through the bottom of a furnace used for melting glass, so that the spinneret body is located at the bottom opening of the furnace. The support mechanism includes a support member, a guide rail, and a guide member. The guide rail is fixedly installed on the inclined surface of the furnace bottom. The guide member is slidably connected to the guide rail. The support member is fixedly connected below the guide member and can slide with the guide member. When the bracket supports the refractory component, the support member slides with the guide member to abut against the side of the refractory component; when the bracket detaches from the refractory component, the support member slides with the guide member to support the underside of the refractory component.

[0007] In one possible design, the support includes a first plate and a second plate connected perpendicularly to each other. The first plate is away from the refractory component, and the second plate supports the refractory component. The side of the second plate away from the first plate is configured as a sloping structure that tapers directly downwards towards the refractory component.

[0008] In one possible design, the guide includes a first end plate, a second end plate, and rollers; the first end plate and the second end plate are symmetrically fixed above the first end plate; rollers are rotatably connected to the side of the first end plate facing the second end plate and the side of the second end plate facing the first end plate; the rollers on both sides are located at both ends of the guide rail and their circumferential downward ends are always tangent to the guide rail.

[0009] In one possible design, a fiberglass drawing spindle also includes a body connected to the bottom of a furnace. The body includes two symmetrically arranged supports, a first connecting plate, and a second connecting plate; horizontally, the two supports are symmetrically connected to the bottom of the furnace; the first connecting plate and the second connecting plate are fixed between the two supports, and a bracket overlaps above the first connecting plate and the second connecting plate.

[0010] In one possible design, a groove is formed on the second plate. The first connecting plate also has a first centering assembly; the first centering assembly includes a first limiting plate, a second limiting plate, a top member, and a spring. The first and second limiting plates are fixed relative to each other above the first connecting plate. The top member includes a first shaft, a second shaft, a third shaft, and a fourth shaft. The third shaft is connected between the first and second shafts, and the fourth shaft is fixedly connected to the circumference of the third shaft. The first shaft passes through the first limiting plate, and the second shaft passes through the second limiting plate. The spring is sleeved on the circumference of the first shaft between the third shaft and the first limiting plate. The end of the second shaft away from the third shaft abuts against the bracket; the fourth shaft extends upward from the groove.

[0011] In one possible design, a fiberglass drawing spindle further includes a second centering assembly connected to a second connecting plate. The second centering assembly includes a third limiting plate and a fourth limiting plate, which are fixed relative to each other above the second connecting plate. A top member is slidably connected to the third and fourth limiting plates. A first shaft passes through the third limiting plate, and a second shaft passes through the fourth limiting plate, with the third shaft located between the third and fourth limiting plates. A spring is sleeved around the first shaft circumferentially between the third shaft and the third limiting plate.

[0012] In one possible design, two first centering components are symmetrically arranged on the first connecting plate. Two second centering components are symmetrically arranged on the second connecting plate.

[0013] In one possible design, the refractory component includes two mounting grooves extending along the length direction and two slots extending along the width direction, with the two slots located on both sides of the two mounting grooves along the length direction. The sprue body includes a top plate, a first support plate, and a second support plate; the first support plate and the second support plate are symmetrically connected at both ends of the top plate along the length direction, the top plate covers the two mounting grooves, and the first support plate and the second support plate are inserted into the two slots one-to-one.

[0014] In one possible design, a positioning groove is also provided between the two mounting slots of the refractory component; a positioning plate is also connected to one side of the top plate that connects the first support plate and the second support plate. The positioning plate is embedded in the positioning groove to position the refractory component and the perforated plate body.

[0015] In one possible design, the bracket includes a support plate, a support beam, and two mounting plates; the support plate can support or detach from the refractory component above; the two mounting plates are fixed to the side of the support plate facing away from the refractory component and are distributed at both ends of the support plate along its length; the support beam connects the two mounting plates.

[0016] Beneficial effects:

[0017] 1. This invention involves inserting a refractory component through the bottom of the furnace, with a bracket underneath. A perforated plate body is fixed on the refractory component. When the bracket supports the refractory component, a support member abuts against the side of the refractory component, providing lateral restraint for the refractory component against the support member. When the refractory component rises and detaches from the bracket, the support member automatically slides along the guide rail to support it directly below the refractory component. When replacing the perforated plate body, there is no need for manual intervention to pry the refractory component in the high-temperature area. The safe and stable support of the refractory component and the perforated plate body can be achieved simply by the guiding slide of the support member. This significantly reduces the difficulty of operation and safety risks, improves maintenance efficiency, and avoids damage to the furnace structure caused by improper disassembly and assembly.

[0018] 2. In this invention, after replacing the refractory component and the main body of the perforated plate, it is placed on the support. The cooperation between the fourth shaft and the limiting groove effectively restricts the support from sliding down the guide rail to the lower end, ensuring that it is in an operable position. When the bracket is pushed towards the first centering component, the compression spring drives the top component and the support through the fourth shaft to move synchronously, so that the refractory component falls onto the inclined structure of the support. After the bracket is released, the spring returns to its original shape, causing the top component to reset. At the same time, the weight of the refractory component and the main body of the perforated plate further pushes the support to slide slightly along the direction of the initial applied thrust. The bracket is then centered by the first centering component and the second centering component, so that the refractory component and the bracket are finally aligned and tightly fitted. This not only avoids manual alignment errors and improves installation accuracy, but also significantly simplifies the operation process of replacing the perforated plate in high-temperature environments.

[0019] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of a fiber drawing stencil for glass fiber processing.

[0022] Figure 2 This is a schematic diagram of the machine body in a glass fiber drawing stencil.

[0023] Figure 3 This is a schematic diagram showing the positional relationship between the spinneret mechanism and the support component in a glass fiber processing spinneret.

[0024] Figure 4 This is a schematic diagram of the structure of a guide component in a glass fiber drawing stencil.

[0025] Figure 5 for Figure 2 A magnified structural diagram at point A in the diagram.

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the first connecting plate and the second connecting plate in a fiber drawing stencil for glass fiber processing.

[0027] Figure 7 This is a schematic diagram of the support component in a glass fiber drawing stencil.

[0028] Figure 8 This is a schematic diagram of the structure of the first centering component and the second centering component in a glass fiber drawing stencil.

[0029] Figure 9 This is a schematic diagram of the top component in a glass fiber drawing stencil.

[0030] Figure 10 This is a schematic diagram of the spinneret mechanism in a glass fiber processing spinneret.

[0031] Figure 11 This is a schematic diagram of the refractory component in a glass fiber drawing stencil.

[0032] Figure 12 This is a schematic diagram of the structure of the spinneret body in a glass fiber processing spinneret.

[0033] Figure 13 This is a schematic diagram of the support structure in a glass fiber drawing spinneret.

[0034] Explanation of reference numerals in the attached drawings: 1. Body; 11. Support; 12. First connecting plate; 13. Second connecting plate; 2. Slotting plate mechanism; 21. Bracket; 211. Support plate; 212. Support beam; 213. Mounting plate; 22. Refractory component; 23. Slotting plate body; 231. Top plate; 232. First support plate; 233. Second support plate; 234. Positioning plate; 3. Replacement mechanism; 31. Support component; 32. Guide rail; 33. Guide component; 331. First end plate; 332. Second end plate; 333. Roller; 4. First centering assembly; 41. First limiting plate; 42. Second limiting plate; 43. Top component; 431. First shaft; 432. Second shaft; 433. Third shaft; 434. Fourth shaft; 44. Spring; 5. Second centering assembly; 51. Third limiting plate; 52. Fourth limiting plate; 6. Furnace. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0037] The term "embodiment" as used herein means that a particular feature, component, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific components of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" of mechanical components can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as a connection secured by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0042] Figures 1-13A glass fiber drawing spinneret provided in this application includes a spinneret mechanism 2 and a support mechanism 3. The spinneret mechanism 2 includes a bracket 21, a refractory component 22, and a spinneret body 23. The bracket 21 is located directly below the refractory component 22 and can support or detach from the refractory component 22. The spinneret body 23 is fixed to the upper surface of the refractory component 22. The refractory component 22 passes through the bottom of a furnace 6 for melting glass, so that the spinneret body 23 is located at the bottom opening of the furnace 6. The support mechanism 3 includes a support 31, a guide rail 32, and a guide member 33. The guide rail 32 is fixedly installed on the inclined surface of the bottom of the furnace 6. The guide member 33 is slidably connected to the guide rail 32. The support 31 is fixedly connected below the guide member 33 and can slide with the guide member 33. When the bracket 21 supports the refractory component 22, the support component 31 slides with the guide component 33 to abut against the side of the refractory component 22; when the bracket 21 detaches from the refractory component 22, the support component 31 slides with the guide component 33 to support the underside of the refractory component 22.

[0043] Based on the above technical solution, under normal working conditions, the refractory component 22 is installed at the bottom of the furnace 6, the upper surface of which is fixedly installed with the sluice plate body 23, and the lower part is supported by the bracket 21. At this time, the support component 31 slides along the guide rail 32 through the guide component 33 to the side of the refractory component 22 and abuts against it. The refractory component 22 forms a lateral limit on the support component 31.

[0044] When the refractory plate body 23 needs to be replaced due to high temperature corrosion or wear, the refractory component 22 is first manually moved upward to remove it from the support of the bracket 21. Due to gravity and the structural feature of the guide rail 32 being set on the bottom slope of the furnace 6, the support component 31 automatically slides downward along the guide rail 32 under the drive of the guide component 33, moving from the side of the refractory component 22 to the position directly below it, thus achieving overall support for the refractory component 22 and the refractory plate body 23.

[0045] After the support component 31 stably supports the refractory component 22, the operator does not need to enter the high-temperature area to forcibly disassemble it with tools such as pry bars. The entire refractory component 22, together with the sprue body 23, can be directly removed from the top of the furnace 6 for replacement, which greatly reduces the operation risk.

[0046] Based on this, when replacing the refractory component 22 and the sprue plate body 23, it is not necessary to manually pry the refractory component 22 by entering the high-temperature area. The refractory component 22 and the sprue plate body 23 can be safely and stably supported by the guide sliding of the support component 31. This significantly reduces the difficulty of operation and safety risks, improves maintenance efficiency, and avoids structural damage to the furnace 6 caused by improper disassembly and assembly.

[0047] In one possible implementation, the support member 31 includes a first plate and a second plate perpendicularly connected to each other, the first plate being away from the refractory member 22, and the second plate being able to support the refractory member 22. The side of the second plate away from the first plate is configured as a sloping structure that tapers directly downwards towards the refractory member 22.

[0048] Through the above technical solution, the support member 31 is composed of a first plate and a second plate that are perpendicularly connected to each other. The first plate is located on the side away from the refractory member 22 and mainly serves as a connector and guide. When the perforated plate mechanism 2 is working normally, the bracket 21 supports the refractory member 22, and the support member 31 slides along the guide rail 32 to the side of the refractory member 22 through the guide member 33. At this time, the side of the second plate abuts against the outer wall of the refractory member 22, and the refractory member 22 provides lateral restraint for the second plate.

[0049] When the refractory plate body 23 needs to be replaced, the refractory component 22 rises and detaches from the bracket 21. Since the guide rail 32 is installed on the inclined surface at the bottom of the furnace 6, the support component 31 automatically slides down along the guide rail 32 under the constraints of gravity and guidance through the guide component 33, so that the second plate moves to the bottom of the refractory component 22. At this time, the second plate just supports the bottom of the refractory component 22. After the second plate is pushed away from the refractory component 22, the refractory component 22 can be erected on the inclined structure. After the force is released, under the action of the self-weight of the refractory component 22 and the refractory plate body 23, the refractory component 22 passively pushes the second plate away from the bottom of the support component 31 and abuts against the side of the refractory component 22, reducing the large-scale collision that would occur if the refractory component 22 falls directly onto the bracket 21.

[0050] In one possible implementation, the guide member 33 includes a first end plate 331, a second end plate 332, and rollers 333; the first end plate 331 and the second end plate 332 are symmetrically fixed above the first plate; rollers 333 are rotatably connected to both the side of the first end plate 331 facing the second end plate 332 and the side of the second end plate 332 facing the first end plate 331; the two rollers 333 are located at both ends of the guide rail 32, and their circumferential downward ends are always tangent to the guide rail 32.

[0051] In the above technical solution, the guide member 33 serves as a sliding connection structure between the support member 31 and the guide rail 32, and is composed of a first end plate 331, a second end plate 332, and rollers 333. The first end plate 331 and the second end plate 332 are symmetrically fixed above the first plate of the support member 31, forming a stable frame structure. Rollers 333 are rotatably mounted on the opposing inner surfaces of the two end plates, with the two rollers 333 located on both sides of the guide rail 32 (i.e., at both ends in the width direction of the guide rail 32), and their lower circumferential ends always maintaining tangential contact with the upper surface of the guide rail 32.

[0052] When the sluice plate mechanism 2 is in normal working condition, the bracket 21 supports the refractory component 22, and the support component 31 slides along the guide rail 32 through the guide component 33 to the side of the refractory component 22. At this time, the roller 333 rolls along the guide rail 32, so that the support component 31 moves smoothly to the side position of the refractory component 22.

[0053] When it is necessary to replace the refractory plate body 23, the refractory component 22 is raised and detached from the bracket 21 by manual control. During this process, the rollers 333 on both sides slide down along the guide rail 32 and always maintain rolling contact with the guide rail 32 to ensure that the support component 31 runs smoothly and without jamming, and slides to the bottom of the refractory component 22 to complete the support. The refractory component 22 and the refractory plate body 23 can then be taken out manually from the top of the furnace 6.

[0054] In one possible implementation, a fiberglass drawing spindle also includes a body 1 connected to the bottom of a furnace 6. The body 1 includes two symmetrically arranged supports 11, a first connecting plate 12, and a second connecting plate 13; in the horizontal direction, the two supports 11 are symmetrically connected to the bottom of the furnace 6; the first connecting plate 12 and the second connecting plate 13 are fixed between the two supports 11, and a bracket 21 overlaps above the first connecting plate 12 and the second connecting plate 13.

[0055] It should be explained that the fuselage 1 serves as the overall support base and is fixedly connected to the bottom of the furnace 6. In the horizontal direction, two supports 11 are fixedly connected to the left and right sides of the bottom of the furnace 6 respectively, forming a stable frame support. The first connecting plate 12 and the second connecting plate 13 are horizontally fixedly connected between the two supports 11, forming a load-bearing platform located directly below the furnace 6.

[0056] The bracket 21 is horizontally connected above the first connecting plate 12 and the second connecting plate 13. Under normal production conditions, the bracket 21 is in a low position, tightly supporting the bottom of the refractory component 22, ensuring that the sprue body 23 is stably located at the bottom opening of the furnace 6, and maintaining the uniform flow of molten glass.

[0057] In one possible implementation, a groove is formed on the second plate. A first centering assembly 4 is also provided on the first connecting plate 12; the first centering assembly 4 includes a first limiting plate 41, a second limiting plate 42, a top member 43, and a spring 44. The first limiting plate 41 and the second limiting plate 42 are fixed relative to each other above the first connecting plate 12; the top member 43 includes a first shaft 431, a second shaft 432, a third shaft 433, and a fourth shaft 434. The third shaft 433 is connected between the first shaft 431 and the second shaft 432, and the fourth shaft 434 is fixedly connected to the circumference of the third shaft 433. The first shaft 431 passes through the first limiting plate 41, and the second shaft 432 passes through the second limiting plate 42; the spring 44 is sleeved around the first shaft 431 between the third shaft 433 and the first limiting plate 41. The end of the second shaft 432 away from the third shaft 433 abuts against the bracket 21; the fourth shaft 434 extends upward from the groove.

[0058] Using the above technical solution, when it is necessary to replace the refractory component 22 and the slatted plate body 23, first control the refractory component 22 to rise and detach from the support of the bracket 21, and the support component 31 slides along the guide rail 32 under the action of gravity to the bottom of the refractory component 22 to complete the initial support (as described above).

[0059] At this time, as the fourth shaft 434 extends upward into the slide groove and contacts the inner wall of the slide groove, the support 31 is temporarily limited by the cooperation between the slide groove and the fourth shaft 434, preventing it from continuing to slide down to the lower end due to the tilt of the guide rail 32, and ensuring that it is in an initial position that is easy to operate.

[0060] After the new refractory component 22 and the baffle plate body 23 are placed together on the second plate of the support component 31, the operator pushes the bracket 21 horizontally towards the first centering component 4. The bracket 21 presses against the second shaft 432, causing the entire top component 43 to move towards that side against the elastic force of the spring 44. Since the fourth shaft 434 is fixedly connected to the top component 43 and passes through the slide groove, this movement simultaneously pulls the support component 31 along the guide rail 32 away from the bottom opening of the furnace 6, causing the refractory component 22 to fall onto the inclined structure of the second plate.

[0061] After the bracket 21 is released, the spring 44 returns to its original deformation, pushing the top part 43 to reset. At the same time, the weight of the refractory part 22 and the sprue body 23 generates a downward component force along the inclined plane, which further prompts the support part 31 to continue moving along the guide rail 32 away from the bottom opening of the furnace 6, so that the bottom of the refractory part 22 is aligned and tightly attached to the upper surface of the bracket 21.

[0062] In one possible implementation, a fiberglass drawing spindle further includes a second centering assembly 5 connected to a second connecting plate 13. The second centering assembly 5 includes a third limiting plate 51 and a fourth limiting plate 52, which are fixed relative to each other above the second connecting plate 13. A top member 43 is slidably connected to the third limiting plate 51 and the fourth limiting plate 52. A first shaft 431 passes through the third limiting plate 51, and a second shaft 432 passes through the fourth limiting plate 52. The third shaft 433 is located between the third limiting plate 51 and the fourth limiting plate 52. A spring 44 is sleeved circumferentially around the first shaft 431 between the third shaft 433 and the third limiting plate 51.

[0063] With the above technical solution, when the new refractory component 22 and the sprue plate body 23 are located on the inclined surface of the support component 31, after the bracket 21 is released, the spring 44 of the first centering component 4 restores its deformation and causes the top component 43 to reset. The weight of the refractory component 22 and the sprue plate body 23 further pushes the support component 31 to move away from the bottom opening of the furnace 6. At the same time, the second shaft 432 of the first centering component 4 cooperates with the second shaft 432 on the second centering component 5 to center and position the bracket 21, so that the refractory component 22 and the bracket 21 fit tightly together. This not only avoids manual alignment errors and improves installation accuracy, but also significantly simplifies the operation process of replacing the sprue plate body 23 and the refractory component 22 in high-temperature environments.

[0064] In one possible implementation, two first centering components 4 are symmetrically arranged on the first connecting plate 12. Two second centering components 5 are symmetrically arranged on the second connecting plate 13.

[0065] Based on the above scheme, two first centering components 4 are symmetrically arranged on the first connecting plate 12 of the body 1, and two second centering components 5 are symmetrically arranged on the second connecting plate 13 to form a double-sided centering and guiding structure for the bracket 21. They work together on the bracket 21 to achieve rapid centering and positioning of the bracket 21, aligning the refractory component 22 with the entire perforated plate body 23 and the bracket 21, and ensuring the leakage of glass fiber.

[0066] In one possible implementation, the refractory component 22 includes two mounting grooves extending along its length and two slots extending along its width, with the two slots located on opposite sides of the two mounting grooves along their length. The perforated plate body 23 includes a top plate 231, a first support plate 232, and a second support plate 233; the first support plate 232 and the second support plate 233 are symmetrically connected to both ends of the top plate 231 along its length, the top plate 231 covering the two mounting groove portions, and the first support plate 232 and the second support plate 233 are inserted into the two slots one-to-one.

[0067] It should be added that the top plate 231 has a leakage hole for the leakage of molten glass. After the top plate 231 is covered and attached to the two mounting slots, the top plate 231 contacts the molten glass and plays a guiding role in the leakage of molten glass fiber. The first support plate 232 is inserted into the slot on one side and the second support plate 233 is inserted into the slot on the other side, forming a double constraint of lateral limitation and vertical support. At the same time, the length of the first support plate 232 and the second support plate 233 needs to extend out of the slot. Since if the refractory component 22 is lifted upward from the top plate 231 with the leakage hole, it may damage the leakage hole of the leakage plate body 23. Therefore, the refractory component 22 needs to be lifted upward from the first support plate 232 and the second support plate 233 that extend out of the slot before the replacement operation, so as to protect the leakage hole structure and reduce the damage to the leakage hole.

[0068] It should also be explained that the sprue body 23 (usually a platinum-rhodium alloy) operates at temperatures as high as 1200–1400℃. The refractory component 22 is made of high-alumina bricks, corundum, or low-creep refractory materials, and has extremely low thermal conductivity and excellent high-temperature stability. It wraps around or supports the sprue body 23, insulates the high temperature from being transmitted to the metal support structure (such as the bracket 21 and the fuselage 1), and prevents the steel structure from softening, deforming, or failing.

[0069] In one possible implementation, a positioning groove is also provided between the two mounting slots of the refractory component 22; a positioning plate 234 is also connected to the side of the top plate 231 that connects to the first support plate 232 and the second support plate 233. The positioning plate 234 is embedded in the positioning groove to position the refractory component 22 and the perforated plate body 23.

[0070] In the above solution, relying solely on the cooperation between the slots on both sides and the support plate can limit lateral (width) and vertical displacement, but slight slippage or misalignment may still occur in the length direction. However, by embedding the positioning plate 234 into the positioning groove located between the two mounting slots, the freedom of movement of the spout body 23 along the length direction is effectively constrained, achieving complete positioning in the length, width, and height directions, ensuring the correct assembly position each time. In addition, in high-temperature environments above 1200℃, the material will undergo thermal expansion. Without central positioning, the support plates on both sides may experience torsional deformation due to uneven expansion. The central positioning plate 234 and the positioning groove form an anti-torsional rib structure, suppressing the rotational tendency of the spout body 23 around the vertical axis and preventing spout skewing or stress concentration cracking caused by thermal deformation.

[0071] In one possible implementation, the bracket 21 includes a support plate 211, a support beam 212, and two mounting plates 213; the support plate 211 can support or detach from the refractory component 22; the two mounting plates 213 are fixed to the side of the support plate 211 facing away from the refractory component 22 and are distributed at both ends of the support plate 211 along its length; the support beam 212 is connected between the two mounting plates 213.

[0072] It should be added that two symmetrical slots are formed on the support plates 211 on both sides of the support beam 212. The slots correspond to the perforation areas separated by the positioning plate 234, thus ensuring the smooth discharge of the fiber filaments. At the same time, the support beam 212 and the mounting plates 213 on both sides form a support frame for the support plates 211, which can significantly improve the overall bending and torsional stiffness. The bracket 21 is used to support or release the refractory component 22. Its structural form (including the support plate 211, the mounting plates 213 at both ends and the connecting support beam 212) is a standard bracket component widely used in glass fiber perforated systems and belongs to the prior art. The specific structure will not be described in detail.

[0073] In practice, when it is necessary to replace the refractory plate body 23, the refractory component 22 is raised and detached from the bracket 21 by manual control. During this process, the rollers 333 on both sides slide down along the guide rail 32, and the second plate slides to the bottom of the refractory component 22. The second plate supports the refractory component 22 and the refractory plate body 23. The refractory component 22 and the refractory plate body 23 are then removed as a whole from the top of the furnace 6.

[0074] After the new refractory component 22 and the baffle plate body 23 are placed together on the second plate, the operator pushes the bracket 21 horizontally to one side of the first centering component 4. The bracket 21 presses against the second shaft 432, causing the entire top component 43 to move to that side against the elastic force of the spring 44. The fourth shaft 434 and the slide groove work together to pull the support component 31 along the guide rail 32 away from the bottom opening of the furnace 6, so that the refractory component 22 falls onto the inclined structure of the second plate. After the bracket 21 is released, the spring 44 returns to its original shape, causing the top component 43 to reset. The weight of the refractory component 22 and the baffle plate body 23 further pushes the support component 31 away from the bottom opening of the furnace 6. At the same time, the second shaft 432 of the first centering component 4, together with the second shaft 432 on the second centering component 5, centers and positions the bracket 21, so that the refractory component 22 and the bracket 21 fit tightly together.

[0075] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fiber drawing stencil for glass fiber processing, characterized in that, include: A sprue mechanism includes a bracket, a refractory component, and a sprue body; the bracket is located directly below the refractory component and can support or detach from the refractory component; the sprue body is fixed to the upper surface of the refractory component; the refractory component passes through the bottom of a furnace for melting glass, so that the sprue body is located at the bottom opening of the furnace; The furnace support mechanism includes a support component, a guide rail, and a guide component; the guide rail is fixedly installed on the inclined surface at the bottom of the furnace; the guide component is slidably connected to the guide rail; the support component is fixedly connected below the guide component and can slide with the guide component. When the bracket supports the refractory component, the support member slides along with the guide member to abut against the side of the refractory component; When the bracket detaches from the refractory component, the support component slides along with the guide component to support the refractory component below.

2. The glass fiber drawing stencil according to claim 1, characterized in that, The support member includes a first plate and a second plate that are perpendicularly connected to each other. The first plate is away from the refractory component, and the second plate is capable of supporting the refractory component. The side of the second plate away from the first plate is configured as a sloping structure that tapers directly downwards towards the refractory component.

3. The glass fiber drawing stencil according to claim 2, characterized in that, The guide includes a first end plate, a second end plate, and rollers; the first end plate and the second end plate are symmetrically fixed above the first end plate; the rollers are rotatably connected to the side of the first end plate facing the second end plate and the side of the second end plate facing the first end plate; the rollers on both sides are located at both ends of the guide rail and their circumferential downward ends are always tangent to the guide rail.

4. The glass fiber drawing stencil according to claim 2, characterized in that, It also includes a fuselage, which is connected to the bottom of the furnace; The machine body includes two symmetrically arranged supports, a first connecting plate, and a second connecting plate; in the horizontal direction, the two supports are symmetrically connected to the bottom of the furnace; the first connecting plate and the second connecting plate are fixed between the two supports, and the bracket is attached above the first connecting plate and the second connecting plate.

5. The glass fiber drawing stencil according to claim 4, characterized in that, The second plate has a sliding groove; The first connecting plate is further provided with a first centering assembly; the first centering assembly includes a first limiting plate, a second limiting plate, a top positioning member, and a spring, the first limiting plate and the second limiting plate being fixedly positioned relative to each other above the first connecting plate; the top positioning member includes a first shaft, a second shaft, a third shaft, and a fourth shaft, the third shaft being connected between the first shaft and the second shaft, the fourth shaft being fixedly connected to the circumference of the third shaft, the first shaft passing through the first limiting plate, and the second shaft passing through the second limiting plate; the spring is sleeved on the circumference of the first shaft between the third shaft and the first limiting plate; The end of the second shaft away from the third shaft abuts against the bracket; the fourth shaft extends upward from the slide groove.

6. The glass fiber drawing stencil according to claim 5, characterized in that, It also includes a second centering component connected to the second connecting plate. The second centering component includes a third limiting plate and a fourth limiting plate. The third limiting plate and the fourth limiting plate are fixed relative to each other above the second connecting plate. The top member is slidably connected to the third limiting plate and the fourth limiting plate. The first shaft passes through the third limiting plate, the second shaft passes through the fourth limiting plate, and the third shaft is located between the third limiting plate and the fourth limiting plate; The spring is sleeved between the third shaft and the third limiting plate in the first circumferential direction.

7. The glass fiber drawing stencil according to claim 6, characterized in that, Two first centering components are symmetrically arranged on the first connecting plate; Two second centering components are symmetrically arranged on the second connecting plate.

8. The glass fiber drawing stencil according to claim 1, characterized in that, The refractory component includes two mounting grooves extending along the length direction and two slots extending along the width direction, with the two slots located on both sides of the two mounting grooves along the length direction. The main body of the sluice plate includes a top plate, a first support plate, and a second support plate; the first support plate and the second support plate are symmetrically connected to both ends of the top plate along its length, the top plate covers the two mounting slots, and the first support plate and the second support plate are inserted into the two slots one by one.

9. The glass fiber drawing stencil according to claim 8, characterized in that, A positioning groove is also provided between the two mounting grooves of the refractory component; a positioning plate is also connected to the side of the top plate that connects the first support plate and the second support plate. The positioning plate is embedded in the positioning groove to position the refractory component and the sprue body.

10. The glass fiber drawing stencil according to claim 1, characterized in that, The bracket includes a support plate, a support beam, and two mounting plates; the support plate can support or detach from the refractory component; the two mounting plates are fixed to the side of the support plate facing away from the refractory component and are distributed at both ends of the support plate along its length; the support beam connects the two mounting plates.

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