Glass fiber manufacturing apparatus and manufacturing process for improving uniformity

Abstract

The application discloses a glass fiber manufacturing device and manufacturing process for improving uniformity, and relates to the technical field of glass fiber manufacturing. The glass fiber manufacturing device for improving uniformity comprises a furnace, a glass melt is arranged in a first cavity of the furnace; a spoiler is further arranged in the first cavity; the spoiler is provided with spoiler holes; the hole diameter of the spoiler holes increases from the middle position to the outer edge position of the spoiler, so as to adapt to the glass melt with decreasing flowability from inside to outside. The application has the advantages of simple structure and reliable function. The spoiler holes are arranged on the spoiler, so that the flow difference of the glass melt at different positions of the vertical cavity cross section is reduced, the problems of uneven temperature and uneven composition at different positions of the glass melt are avoided, and the quality of the glass fiber product is improved.

Description

Technical Field

[0001] This invention relates to the field of glass fiber manufacturing technology, and more specifically to a glass fiber manufacturing apparatus and manufacturing process for improving uniformity. Background Technology

[0002] Glass fibers are manufactured through a drawing process. Glass at high temperatures is molten and fluid (hereinafter referred to as glass melt), and it is shaped into a fibrous structure as it passes through a drawing spindle.

[0003] A furnace is a common piece of equipment in the glass drawing process, used to store and heat molten glass. Because the temperature of molten glass (typically 1300-1400 degrees Celsius) is much higher than room temperature, natural heat dissipation occurs: molten glass located at the outer edge of the furnace cavity (closer to the furnace wall) dissipates heat quickly and has a relatively lower temperature, while molten glass located in the center of the furnace cavity dissipates heat slowly and has a relatively higher temperature. Higher molten glass has greater fluidity; lower temperature has lower fluidity. Therefore, the flow rate of molten glass in the center of the furnace cavity is larger, while the flow rate at the outer edge is smaller. Over time, this leads to differences in the composition of the molten glass in the center and outer edge of the furnace cavity, ultimately making it difficult to control the uniformity of composition and diameter of glass fibers in the same batch (resulting in significant variations). Summary of the Invention

[0004] In order to overcome the problem of "different flow rates of glass melt in the middle and outer edges of the furnace cavity" in the above-mentioned background art, the present invention provides a glass fiber manufacturing apparatus and manufacturing process for improving uniformity.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A glass fiber manufacturing apparatus for improving uniformity includes a furnace, a first cavity of which is filled with molten glass; and a baffle plate installed in the first cavity, wherein the baffle plate is provided with baffle holes.

[0006] As a further optimization of the present invention, the diameter of the turbulence holes in the turbulence plate increases from the middle position to the outer edge position to adapt to the glass melt whose fluidity decreases from the inside to the outside.

[0007] As a further optimization of the present invention, the outer contour of the spoiler is circular, and the spoiler holes are arranged in a circumferential array on the spoiler.

[0008] As a further optimization of the present invention, the outer contour of the spoiler is rectangular, and the spoiler holes are arranged in a matrix on the spoiler.

[0009] As a further optimization of the present invention, the axes of the plurality of turbulence holes are inclined in a converging manner from top to bottom.

[0010] As a further optimization of the present invention, the spoiler has an upwardly convex shape in the middle and a downwardly concave shape at the outer edge; a mixing cavity is provided below the spoiler.

[0011] As a further optimization of the present invention, the top surface of the baffle is equipped with a control component with an internal fluid channel. The top end of the fluid channel is provided with a feed hole, and the bottom end is connected to the baffle hole. When the control component bends, it can control the bending angle and length of the fluid channel to adjust the resistance of the glass melt flowing through the fluid channel, thereby adjusting the flow rate of the glass melt.

[0012] As a further optimization of the present invention, the control component includes a vertically arranged first tube, a vertically inclined second tube, and a vertically inclined third tube; the bottom end of the first tube is fixedly connected to the spoiler; the top end of the first tube is rotatably connected to the bottom end of the second tube via a first rotating shaft; the top end of the second tube is rotatably connected to the bottom end of the third tube via a second rotating shaft; and the top end of the third tube is rotatably connected to the bottom end of the first upright via a third rotating shaft. The distance between the first rotating shaft and the second rotating shaft is equal to the distance between the second rotating shaft and the third rotating shaft, and the third rotating shaft is located directly above the first rotating shaft, so that the horizontal displacement of the first upright is zero when it is raised or lowered.

[0013] As a further optimization of the present invention, the top end of the first tube is connected to and communicates with a first arc-shaped tube, and the bottom end of the second tube is connected to and communicates with a second arc-shaped tube, wherein the first arc-shaped tube and the second arc-shaped tube are fitted and inserted in an arc shape; the top end of the second tube is connected to and communicates with a third arc-shaped tube, and the bottom end of the third tube is connected to and communicates with a fourth arc-shaped tube, wherein the third arc-shaped tube and the fourth arc-shaped tube are fitted and inserted in an arc shape.

[0014] A glass fiber manufacturing process for improving uniformity is used to manufacture glass fibers using a glass fiber manufacturing apparatus for improving uniformity. The steps include: S1, feeding glass raw material into the first cavity of the furnace; S2, heating the glass raw material to obtain glass melt; S3, driving the glass melt through the baffle holes on the baffle plate; S4, drawing the glass melt into fibers through a drawing die installed at the tail opening of the first cavity to obtain glass fibers.

[0015] In summary, the present invention has at least one of the following advantages: (1) In this invention, a flow-dispersing hole is opened on the flow-dispersing plate to reduce the flow difference of the glass melt at different positions of the cross-section of the vertical cavity (specifically, to reduce the flow of the high-temperature glass fluid in the middle and to increase the flow of the low-temperature glass melt at the outer edge), so as to avoid the problem of uneven temperature and uneven composition at different positions of the glass melt and improve the quality of the finished glass fiber product.

[0016] (2) The baffle plate has a certain blocking effect on the glass melt flowing from top to bottom (the glass melt flows from top to bottom under its own gravity). Then, some of the glass melt can penetrate the baffle hole and some of the glass melt impacts the top surface of the baffle plate and flows back. The backflowing glass melt (i.e. the glass melt flowing upward) and the glass melt flowing downward collide to form turbulence. Then the temperature uniformity of the glass melt is improved and the fluidity difference is reduced.

[0017] (3) A first cylinder is installed on the bottom surface of the baffle. The inner cavity of the first cylinder has an inverted conical structure, which is used to increase the resistance of the glass melt flowing through this position, thereby further strengthening the counter-impact and improving the uniformity of the glass melt.

[0018] (4) When the control component bends, it can control the bending angle and length of the fluid channel to adjust the resistance of the glass melt flowing through the fluid channel, thereby adjusting the flow rate of the glass melt. Regardless of whether the external temperature is constant or changing, this solution can reduce the flow rate difference of the glass melt, and has high compatibility and environmental adaptability.

[0019] (5) The first tube, the second tube and the third tube are sequentially hinged. The curvature and length of the fluid channel can be adjusted by simply raising and lowering the first upright rod, thereby applying different resistances to the glass melt at different positions. This allows for quick and convenient control of the flow difference of the glass melt, avoiding the problem of complex mechanical transmission in viscous glass melt. It features simple structure, convenient operation, stability and reliability, and long service life.

[0020] (6) The distance of the first pole lifting and lowering is converted into the degree of bending of the fluid channel, which in turn is converted into the resistance applied to the glass melt. That is, it can convert large mechanical movements into precise control of small resistance, which has higher control accuracy than traditional technology.

[0021] (7) The control component is flexible: on the one hand, it changes the degree of bending of the fluid channel, thereby changing the resistance it exerts on the glass melt; on the other hand, it can change the overlap area between the first and second arc-shaped tubes (and between the third and fourth arc-shaped tubes), thereby controlling the total length of the fluid channel and thus changing the resistance it exerts on the glass melt. That is, a mechanical action can simultaneously utilize two control principles to achieve the same purpose of control, avoiding the generation of negative functions and the cancellation of opposite functions, enhancing the control effect, and requiring no additional operation by personnel, thus having the technical advantage of convenient operation.

[0022] (8) The connecting frame can be raised and lowered independently to control the synchronous raising and lowering of the corresponding first upright. Therefore, the number of first linear actuators can be much smaller than the number of first uprights. On the one hand, this simplifies the structure of the present invention and avoids interference between multiple first linear actuators. On the other hand, it reduces the cost. Attached Figure Description

[0023] The present application will be further explained below with reference to the accompanying drawings: Figure 1 This is a front view of the overall structure of the present invention. Figure 2 This is a schematic diagram of the location of the turbulence holes and the front view of the structural section. Figure 3 This is a front view diagram of the position and structure of the first cylinder; Figure 4 This is a top view of the circular spoiler structure; Figure 5 A front view of the vertical section of a straight-plate spoiler structure; Figure 6 This is a top view of the rectangular spoiler structure; Figure 7 This is a front view of the vertical section of a cone-shaped plate-like spoiler structure. Figure 8 Top view of the positions of the lateral and longitudinal edges of the spoiler; Figure 9 This is a front view of the first cavity structure in an elevation section. Figure 10 A front view diagram showing the position of the control components and the first upright; Figure 11 This is a front view schematic diagram of the connection structure between the first tube body, the second tube body, and the third tube body; Figure 12 A front view diagram of the structural section of the control component; Figure 13 A front view diagram showing the state with the bending angle reduced; Figure 14 A front view diagram showing the increased bending angle; Figure 15 This is a top-angle view of the connection structure between the first upright, the connecting frame, and the second upright.

[0024] Explanation of reference numerals in the attached figures: In the picture, 1. Furnace; 10. First cavity; 101. Horizontal cavity; 102. Second cavity; 103. Connecting cavity; 104. Melting cavity; 1041. Feed port; 1042. Partition plate; 11. Heat insulation plate; 2. Baffle plate; 20. Mixing chamber; 21. Baffle hole; 211a. First baffle hole a; 212a. Second baffle hole a; 213a. Third baffle hole a; 211b. First baffle hole b; 212b. Second baffle hole b; 213b. Third baffle hole b; 22. First cylinder; 23. Control assembly; 230. Fluid channel; 2300. Bending angle; 2301. Feed port; 231. First tube; 2311. First arc-shaped tube; 231 2. First fin; 232. Second tube body; 2321. Second arc-shaped tube; 2322. Second fin; 2323. Third arc-shaped tube; 2324. Third fin; 233. Third tube body; 2331. Fourth arc-shaped tube; 2332. Fourth fin; 2333. Fifth fin; 234. First rotating shaft; 235. Second rotating shaft; 236. Third rotating shaft; 24. First upright; 25. Connecting frame; 26. Second upright; 27. First linear actuator; 3. Wire drawing stencil; 4. Melted glass; 41. Glass fiber. Detailed Implementation

[0025] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figure 1 This embodiment provides a glass fiber manufacturing apparatus for improving uniformity, including a furnace 1, and a glass melt 4 disposed in the first cavity 10 of the furnace 1; the glass melt 4 is a fluid substance obtained by heating glass raw materials (e.g., glass beads).

[0026] Reference Figure 1The first cavity 10 includes a horizontal cavity 101 and a vertical cavity connected in a T-shape. The molten glass 4 can flow from the horizontal cavity 101 into the vertical cavity, and then flow downwards along the vertical cavity. A drawing plate 3 is installed at the bottom opening of the vertical cavity (the outer edge of the drawing plate 3 is fixedly connected to the bottom surface of the furnace 1 by heat-resistant bolts). An external winding machine pulls the molten glass 4 through the drawing plate 3 to obtain glass fibers 41. A baffle 2 is horizontally placed in the middle of the vertical cavity. The molten glass 4 will pass through the baffle 2 (the baffle hole 21 on it) as it flows from top to bottom. Since the drawing plate 3 is located at the bottom of the vertical cavity, the amount of molten glass 4 at the bottom of the vertical cavity continuously decreases. Therefore, the molten glass 4 can flow continuously downwards under its own weight, thereby forming continuous glass fibers 41.

[0027] Heating electrodes are fixedly installed on the side wall of furnace 1. The heating electrodes are partially inserted into the first cavity 10 and come into contact with the glass raw material and / or glass melt 4, thereby heating / keeping it warm to avoid the problem of glass cooling down and reducing fluidity.

[0028] Reference Figures 1-2 The glass fiber manufacturing apparatus for improving uniformity also includes a baffle plate 2 fixedly installed inside the first cavity 10. The outer edge of the baffle plate 2 is fixedly connected to the inner side wall of the vertical cavity by heat-resistant bolts. The baffle plate 2 is provided with baffle holes 21 for the glass melt 4 to penetrate.

[0029] Reference Figures 1-3 The baffle 2 provides some obstruction to the glass melt 4 flowing from top to bottom (the glass melt 4 flows from top to bottom under its own gravity). As a result, some of the glass melt 4 can penetrate the baffle hole 21, and some of the glass melt 4 impacts the top surface of the baffle 2 and flows back. The backflowing glass melt 4 (i.e. the glass melt 4 flowing upward) and the glass melt 4 flowing downward collide to form turbulence. As a result, the temperature uniformity of the glass melt 4 is improved and the fluidity difference is reduced.

[0030] Reference Figure 2 and Figure 3 A first cylinder 22 is mounted on the bottom surface of the spoiler 2. The first cylinder 22 has an open top and bottom structure. The top surface of the first cylinder 22 is sealed and fixedly connected to the bottom surface of the spoiler 2 (e.g., by integral fixing or welding). The top of the first cylinder 22 is coaxially arranged and communicates with the spoiler hole 21. The inner cavity of the first cylinder 22 has an inverted conical structure to increase the resistance of the glass melt 4 flowing through this position, thereby achieving the anti-collision of the glass melt 4.

[0031] The diameter of the turbulence holes 21 in the baffle 2 increases from the middle to the outer edge to accommodate the decreasing flow rate of the glass melt 4 from the inside to the outside. That is, the diameter of the turbulence holes 21 in the middle of the baffle 2 is relatively small, so the glass melt 4 with strong flow rate at that position experiences relatively large resistance (from the turbulence holes 21) and a smaller flow rate (per unit time); while the diameter of the turbulence holes 21 in the outer edge of the baffle 2 is relatively large, so the glass melt 4 with strong flow rate at that position experiences relatively small resistance (from the turbulence holes 21) and a larger flow rate (per unit time). Ultimately, this reduces the flow rate difference, temperature difference, and composition difference of the glass melt 4 in the middle and outer edges of the baffle 2, improves uniformity, and thus improves the quality of the produced glass fiber 41.

[0032] Multiple flow-dispersing holes 21 are provided, including a first flow-dispersing hole a211a, a second flow-dispersing hole a212a, a third flow-dispersing hole a213a, a first flow-dispersing hole b211b, a second flow-dispersing hole b212b, and a third flow-dispersing hole b213b; wherein, the diameter of the flow-dispersing holes 21 on the baffle plate 2 increases from the middle position to the outer edge position. Figure 4 For example, the third turbulence hole a213a, the second turbulence hole a212a, and the first turbulence hole a211a are arranged sequentially from the middle to the outer edge on the turbulence plate 2. Therefore, the diameter of the third turbulence hole a213a is less than the diameter of the second turbulence hole a212a, which is less than the diameter of the first turbulence hole a211a. Figure 6 For example, the third turbulence hole b213b, the second turbulence hole b212b, and the first turbulence hole b211b are arranged sequentially from the middle to the outer edge on the turbulence plate 2. Then, the diameter of the third turbulence hole b213b is less than the diameter of the second turbulence hole b212b and the diameter of the first turbulence hole b211b.

[0033] Reference Figure 5 The spoiler 2 has a circular outer contour (to accommodate a vertical cavity with a circular cross-section), and the spoiler holes 21 are arranged in a (multi-layered) circumferential array on the spoiler 2. In this embodiment, the diameter of the first spoiler hole a211a is D, and the diameter of the second spoiler hole a212a is D. (X1), the diameter of the third turbulence hole a213a = D (X1) (X2), where D = 5–30 mm, X1 = 0.5–0.9, X2 = 0.6–0.9, and the distance between two adjacent first turbulence holes a211a = the distance between two adjacent second turbulence holes a212a = the distance between two adjacent third turbulence holes a213a = M1, the radius r1 of the circle containing several first turbulence holes a211a - the radius r2 of the circle containing several second turbulence holes a212a = M2, the radius r2 of the circle containing several second turbulence holes a212a - the radius r3 of the circle containing several third turbulence holes a213a = M2, where M1 / D = 3–8, M1 ≤ M2, M2 ≤ M3. The turbulence plate 2 has a straight plate structure (refer to...). Figure 5 ) or conical plate structure (see Figure 7 That is, the middle part is convex and the outer edge is concave, which is used to form the mixing cavity 20).

[0034] Reference Figure 6 and Figure 8 The spoiler 2 has a rectangular outer contour (to accommodate a vertical cavity with a rectangular cross-section), and the spoiler holes 21 are arranged in a matrix on the spoiler 2. In this embodiment, the diameter of the first spoiler hole b211b is D, and the diameter of the second spoiler hole b212b is D. (X1), the diameter of the third turbulence hole b213b = D (X1) (X2), where D = 5–30 mm, X1 = 0.5–0.9, X2 = 0.6–0.9, and the longitudinal spacing between two adjacent first turbulence holes b211b = the longitudinal spacing between two adjacent second turbulence holes b212b = the longitudinal spacing between two adjacent third turbulence holes b213b = the longitudinal spacing between adjacent first turbulence holes b211b and second turbulence holes b212b = the longitudinal spacing between adjacent second turbulence holes b212b and third turbulence holes b213b = L1, the lateral spacing between two adjacent first turbulence holes b211b = L2 or L3, the lateral spacing between adjacent first turbulence holes b211b and second turbulence holes b212b = L2, the lateral spacing between adjacent second turbulence holes b212b and third turbulence holes b213b = L3, where L1 / D = 3–8, L1 ≤ L2, L2 ≤ L3. The turbulence plate 2 has a straight plate structure (refer to...). Figure 5 ) or conical plate structure (see Figure 7 That is, the middle part is convex and the outer edge is concave, which is used to form the mixing cavity 20).

[0035] When spoiler 2 adopts a straight plate structure (for example, refer to...) Figure 5If the axis of the turbulence hole 21 (and the axis of the first cylinder 22) is inclined from top to bottom, for example, when drilling, the turbulence hole 21 is processed in an inclined form; then when drawing, the glass melt 4 passing through different turbulence holes 21 will collide with each other and form turbulence, which is used to achieve mixing of the glass melt 4 and improve the uniformity of the glass melt 4.

[0036] When spoiler 2 adopts a conical plate structure (for example, refer to...) Figure 7 The middle part of the baffle plate 2 is convex and the outer edge is concave. The axis of the baffle hole 21 perpendicular to the baffle plate 2 (and the axis of the first cylinder 22) is still inclined in a converging manner from top to bottom. During the wire drawing operation, the glass melt 4 passing through different baffle holes 21 will collide with each other (in the mixing chamber 20) and form turbulence, which is used to achieve the mixing of the glass melt 4 and improve the uniformity of the glass melt 4.

[0037] Reference Figure 7 and Figure 8 When the spoiler 2 adopts a conical plate structure with a rectangular outer contour, the length P of its lateral edge is less than or equal to the length Q of its longitudinal edge, and its maximum height Z / length P of its lateral edge is 0.15 to 0.3, in order to balance excellent connectivity and mixing performance.

[0038] Reference Figure 9 The first cavity 10 also includes a connecting cavity 103 and a melting cavity 104; the connecting cavity 103 is vertically arranged, and the horizontal cavity 101 and the melting cavity 104 are respectively located on the left and right sides of the connecting cavity 103. The top end of the connecting cavity 103 is connected to the horizontal cavity 101 (the end away from the vertical cavity), and the bottom end of the top end of the connecting cavity 103 is connected to the bottom end of the melting cavity 104; a vertical partition plate 1042 is installed inside the furnace 1, and the melting cavity 104 and the connecting cavity 103 are respectively located on the left and right sides of the partition plate 1042. The melting chamber 104 is equipped with a feeding port 1041 at the top, through which the user can feed glass raw materials into the melting chamber 104. During the feeding process, bubbles will be generated. The bubbles float in the glass melt 4, so the glass melt 4 at the bottom of the melting chamber 104 has a higher quality (less bubble content) and the glass melt 4 at the top has a lower quality (more bubble content). Therefore, the function of the partition plate 1042 is to selectively press the glass melt 4 at the bottom of the melting chamber 104 into the connecting chamber 103, the horizontal chamber 101 and the vertical chamber in sequence, thereby improving the product quality.

[0039] Reference Figure 9 The liquid level of the glass melt 4 in the melting chamber 104 is higher than that in the horizontal chamber 101 (when glass raw materials are added, the liquid level of the glass melt 4 in the melting chamber 104 will rise), thereby using the liquid level difference to press the glass melt 4 in the melting chamber 104 into the connecting chamber 103.

[0040] Using turbulence holes 21 with different apertures to adjust the flow rate of molten glass 4 at different positions on the cross-section of the vertical cavity (i.e., turbulence plate 2) is a simple, stable, reliable, and low-cost method. However, it suffers from the problem of being unable to control the flow rate (because the aperture difference is constant). Once the drawing process is started, it cannot be stopped for maintenance (the molten glass 4 will block the first cavity 10 after cooling and is difficult to discharge). Therefore, when the external temperature changes, the temperature difference of the molten glass 4 at the middle and outer edges of the cross-section of the vertical cavity will change (for example, in winter, the air temperature decreases, heat dissipation accelerates, and the temperature difference increases; in summer, the air temperature rises, heat dissipation slows down, and the temperature difference decreases). Since it is impossible to stop the machine to replace the turbulence plate 2, the above solution cannot be compatible with such situations due to its constant adjustment capability (for example, insufficient adjustment capability in winter and excessive adjustment in summer), resulting in a further increase in the temperature difference of the molten glass 4 and a decrease in product uniformity. To solve this problem, refer to... Figure 10 and Figure 11 A tubular control assembly 23 is installed on the top surface of the spoiler 2. The control assembly 23 has a fluid channel 230 inside, which is arranged along the axial direction of the control assembly 23 in an S-shape. The top end of the fluid channel 230 has a feed hole 2301 (for communicating with the vertical cavity located above the spoiler 2), and the bottom end communicates with the turbulence hole 21 (for communicating with the vertical cavity located below the spoiler 2).

[0041] Reference Figure 11 , Figure 13 and Figure 14 When the regulating component 23 bends, it can control the bending angle 2300 and length of the fluid channel 230 to adjust the resistance of the glass melt 4 flowing through the fluid channel 230, thereby regulating the flow rate of the glass melt 4 (specifically, increasing / decreasing the flow rate of the glass melt 4 located at the outer edge of the baffle 2, and decreasing / increasing the flow rate of the glass melt 4 located at the middle of the baffle 2, thereby reducing the flow rate difference between the two). Regardless of whether the diameters of the baffle holes 21 on the baffle 2 are equal, this embodiment can independently play the role of regulating the flow rate.

[0042] Reference Figure 11 and Figure 12The control component 23 includes a vertically arranged first tube 231, a vertically inclined second tube 232, and a vertically inclined third tube 233. The bottom end of the first tube 231 is fixedly connected to the baffle 2 (e.g., by welding to achieve a seal and vertical fixed connection); the top end of the first tube 231 is rotatably connected to the bottom end of the second tube 232 via a first rotating shaft 234; the top end of the second tube 232 is rotatably connected to the bottom end of the third tube 233 via a second rotating shaft 235; the top end of the third tube 233 is rotatably connected to the bottom end of the first upright 24 via a third rotating shaft 236; the second tube 232 and the third tube 233 are connected in a V-shape. The fluid channel 230 includes the inner cavity of the third tube 233, the inner cavity of the second tube 232, and the inner cavity of the first tube 231, and the three are sequentially connected, and the glass melt 4 can flow through the inner cavity of the third tube 233, the inner cavity of the second tube 232, and the inner cavity of the first tube 231 in sequence.

[0043] Reference Figure 12 and Figure 13 When the first upright 24 descends, the inclination of the third tube 233 and the second tube 232 increases, and the bending angle 2300 (at the bend of the fluid channel 230) decreases (to R1). As a result, the fluid channel 230 becomes more tortuous, and the resistance of the glass melt 4 flowing through the fluid channel 230 increases, thus reducing the flow rate of the glass fluid at that location.

[0044] Reference Figure 12 and Figure 14 When the first upright 24 rises, the inclination of the third tube 233 and the second tube 232 decreases, and the bending angle 2300 (at the bend of the fluid channel 230) increases (increases to R2). As a result, the fluid channel 230 becomes straighter overall, and the resistance of the glass melt 4 flowing through the fluid channel 230 decreases, thus increasing the flow rate of the glass fluid at that location.

[0045] Reference Figure 12The top end of the first tube 231 is connected to and communicates with a first arc-shaped tube 2311 (e.g., through an integrated sealing connection), and the bottom end of the second tube 232 is connected to and communicates with a second arc-shaped tube 2321 (e.g., through an integrated sealing connection). The first arc-shaped tube 2311 and the second arc-shaped tube 2321 are fitted and inserted in an arc shape. When the first tube 231 and the second tube 232 rotate relative to each other, the first arc-shaped tube 2311 and the second arc-shaped tube 2321 can be inserted and removed relative to each other to achieve fitting. Furthermore, the first rotating shaft 234 is located at the center of the circle containing the first arc-shaped tube 2311 and the second arc-shaped tube 2321. The top end of the second tube 232 is connected to and communicates with the third arc-shaped tube 2323 (e.g., through an integrated sealing connection), and the bottom end of the third tube 233 is connected to and communicates with the fourth arc-shaped tube 2331 (e.g., through an integrated sealing connection). The third arc-shaped tube 2323 and the fourth arc-shaped tube 2331 are fitted and inserted in an arc shape. When the second tube 232 and the third tube 233 rotate relative to each other, the third arc-shaped tube 2323 and the fourth arc-shaped tube 2331 can be inserted and removed relative to each other to achieve fitting. Furthermore, the second rotating shaft 235 is located at the center of the circle containing the third arc-shaped tube 2323 and the fourth arc-shaped tube 2331.

[0046] Reference Figure 12 and Figure 13 When the first upright 24 descends, the inclination of the third tube 233 and the second tube 232 increases, and the bending angle 2300 decreases (to R1). Then, the second arc-shaped tube 2321 is adapted to be inserted into the first arc-shaped tube 2311, and the third arc-shaped tube 2323 is adapted to be inserted into the fourth arc-shaped tube 2331. Thus, the total length of the fluid channel 230 is reduced (by increasing the overlapping area). Therefore, the resistance of the glass melt 4 flowing through the fluid channel 230 increases, and the flow rate of the glass fluid at this position decreases.

[0047] Reference Figure 12 and Figure 14 When the first upright 24 rises, the inclination of the third tube 233 and the second tube 232 decreases, and the bending angle 2300 increases (increases to R2). Then the second arc-shaped tube 2321 is pulled out from the inner cavity of the first arc-shaped tube 2311 and the third arc-shaped tube 2323 is pulled out from the inner cavity of the fourth arc-shaped tube 2331. Thus, the total length of the fluid channel 230 is increased (by reducing the overlapping area). Therefore, the resistance of the glass melt 4 flowing through the fluid channel 230 is reduced, and the flow rate of the glass fluid at this position increases.

[0048] Reference Figure 10 and Figure 15 The first upright rod 24 corresponding to the turbulence hole 21 (control component 23) in the middle of the turbulence plate 2 and the first upright rod 24 corresponding to the turbulence hole 21 (control component 23) at the outer edge of the turbulence plate 2 can be raised and lowered independently, thereby adjusting the flow difference of the glass melt 4 in the middle and outer edge of the turbulence plate 2.

[0049] Reference Figure 10 and Figure 15 Several connecting frames 25 are provided above the spoiler 2. The connecting frames 25 are circular or rectangular ring structures, which are used to adapt to the circular or rectangular spoiler 2 respectively.

[0050] For example, the connecting frame 25 has three frames that are nested sequentially from the inside out, combined with... Figure 10 and Figure 6 The first upright 24, positioned above the first turbulence hole a211a, is connected to the outermost connecting frame 25. The first upright 24, positioned above the second turbulence hole a212a, is connected to the next outermost connecting frame 25. The first upright 24, positioned above the third turbulence hole a213a, is connected to the innermost connecting frame 25. Thus, when the three connecting frames 25 rise and fall independently, they can regulate the flow rate (difference) of the glass melt 4 flowing through the first turbulence hole a211a, the second turbulence hole a212a, and the third turbulence hole a213a.

[0051] For example, the connecting frame 25 has three frames that are nested sequentially from the inside out, combined with... Figure 10 and Figure 6 The first upright 24, positioned above the first turbulence hole b211b, is connected to the outermost connecting frame 25. The first upright 24, positioned above the second turbulence hole b212b, is connected to the next outermost connecting frame 25. The first upright 24, positioned above the third turbulence hole b213b, is connected to the innermost connecting frame 25. Thus, when the three connecting frames 25 rise and fall independently, they can regulate the flow rate (difference) of the glass melt 4 flowing through the first turbulence hole b211b, the second turbulence hole b212b, and the third turbulence hole b213b.

[0052] A heat insulation plate 11 is fixedly installed on the top surface of the furnace 1 (via heat-resistant bolts). Several first linear actuators 27 are mounted on the heat insulation plate 11 (the housings of the first linear actuators 27 are fixedly connected to the heat insulation plate via heat-resistant bolts). The output shafts of the first linear actuators 27 are inserted into a first through hole (on the heat insulation plate 11) and a second through hole (on the top of the furnace 1) and connected to a second upright 26 (e.g., fixedly connected via heat-resistant bolts). The output shafts of the first linear actuators 27 and the second upright 26 are coaxially aligned. The bottom end of the second upright 26 is fixedly connected to a connecting frame 25 (e.g., fixedly connected via heat-resistant bolts). The first linear actuators 27 can drive the corresponding second upright 26, connecting frame 25, and first upright 24 to rise and fall independently, thereby controlling the increase / decrease of the flow rate of the glass melt 4 at the corresponding control component 23 position.

[0053] Reference Figure 12 , Figure 13 and Figure 14The first tube 231 has a first fin 2312 at its top end (e.g., fixedly connected by heat-resistant bolts), and the second tube 232 has a second fin 2322 at its bottom end (e.g., fixedly connected by heat-resistant bolts). The first fin 2312 and the second fin 2322 are rotatably connected by a first rotating shaft 234. The second tube 232 has a third fin 2324 at its top end (e.g., fixedly connected by heat-resistant bolts), and the third tube 233 has a fourth fin 2332 at its bottom end (e.g., fixedly connected by heat-resistant bolts). The third fin 2324 and the fourth fin 2332 are rotatably connected by a second rotating shaft 235. The third tube 233 has a fifth fin 2333 at its top end (e.g., fixedly connected by heat-resistant bolts), and the fifth fin 2333 is rotatably connected to the bottom end of the first upright 24 by a third rotating shaft 236. After the user assembles the invention using the first fin 2312, second fin 2322, third fin 2324, fourth fin 2332, and fifth fin 2333 of appropriate length, the distance between the first rotating shaft 234 and the second rotating shaft 235 is equal to the distance between the second rotating shaft 235 and the third rotating shaft 236, and the third rotating shaft 236 is located directly above the first rotating shaft 234. This ensures that the horizontal displacement of the first upright 24 is zero when it is raised or lowered. That is, the first upright 24 will not generate horizontal displacement (including lateral and longitudinal displacement) during vertical movement (i.e., raising or lowering), in order to adapt to the characteristic that the vertically set first linear actuator 27 can only be driven vertically, and to avoid the problem of off-center load damage to the first upright 24 (as well as the second upright 26 and the output shaft).

[0054] The upper part of the first tube 231, the first arc-shaped tube 2311, and the first fin 2312 are fixedly connected in a Y-shape. The lower part of the second tube 232, the second arc-shaped tube 2321, and the second fin 2322 are fixedly connected in a Y-shape. The upper part of the second tube 232, the third arc-shaped tube 2323, and the third fin 2324 are fixedly connected in a Y-shape. The lower part of the third tube 233, the fourth arc-shaped tube 2331, and the fourth fin 2332 are fixedly connected in a Y-shape. The upper part of the third tube 233 is fixedly connected to the fifth fin 2333. This provides room for bending and deformation of the control component 23, preventing jamming.

[0055] The first linear actuator 27 is an electric actuator, a pneumatic actuator, a hydraulic actuator, or a combination thereof (e.g., an electro-hydraulic actuator).

[0056] The present invention also includes an electrical cabinet, which is fixedly installed on the floor of the processing workshop by bolts; the heating electrode, the first linear driver 27, and the winding machine are respectively connected to the electrical cabinet by wires and signal lines; the electrical cabinet is connected to the external power supply and the external controller (such as a computer or a PLC programmable logic controller) by wires and signal lines, and the external controller controls the starting and stopping status of the heating electrode, the first linear driver 27, and the winding machine in the present invention through the electrical cabinet.

[0057] The specific extension amount of the output shaft of the first linear actuator 27 at different room temperatures can be obtained through a limited number of experiments. The user stores the experimental data in the peripheral controller. The user retrieves the corresponding data (value) based on the average temperature of the day, and then controls the extension amount of the output shaft of the first linear actuator 27 to be equal to that value, which can achieve convenient control and improve work efficiency.

[0058] A glass fiber manufacturing process for improving uniformity, comprising manufacturing glass fiber 41 using a glass fiber manufacturing apparatus for improving uniformity, including the following steps: S1. Glass raw materials are fed into the first chamber 10 of the furnace 1 (either manually or via a conveyor belt).

[0059] S2. (Through heating electrodes) heat the glass raw material to obtain glass melt 4.

[0060] S3. Drive the first linear actuator to adjust the bending degree and length of the control component 23, and then drive the glass melt 4 to flow through the fluid channel 230 and the turbulence hole 21.

[0061] S4. The glass melt 4 is drawn into fibers by the drawing plate 3 installed at the tail opening of the first cavity 10 to obtain glass fiber 41.

[0062] The heat-resistant bolts, wire-drawing baffle 3, baffle 2, control assembly 23, first upright 24, connecting frame 25, and second upright 26 are all made of heat-resistant alloy materials (such as platinum-rhodium alloy).

[0063] The present invention has a simple structure and reliable function. By opening a flow-dispersing hole 21 on the flow-dispersing plate 2, the flow difference of the glass melt 4 at different positions of the cross-section of the vertical cavity is reduced, so as to avoid the problems of uneven temperature and uneven composition at different positions of the glass melt 4 and improve the quality of the finished glass fiber 41.

[0064] The first tube 231, the second tube 232, and the third tube 233 are sequentially hinged. The curvature and length of the fluid channel 230 can be adjusted by simply raising and lowering the first upright 24, thereby applying different resistances to the glass melt 4 at different positions. This allows for quick and convenient control of the flow difference of the glass melt 4, avoiding the problem of complex mechanical transmission within the viscous glass melt 4. It features a simple structure, convenient operation, stability, reliability, and long service life.

[0065] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0066] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. An apparatus for improving the uniformity of glass fiber manufacturing, characterized in that: It includes a furnace (1), in which a glass melt (4) is provided in the first cavity (10); it also includes a baffle plate (2) installed in the first cavity (10); the baffle plate (2) is provided with baffle holes (21).

2. The glass fiber manufacturing apparatus for improving uniformity according to claim 1, characterized in that: The diameter of the swirl plate (2) increases from the middle position to the outer edge position of the swirl hole (21) to adapt to the glass melt (4) whose fluidity decreases from the inside to the outside.

3. The glass fiber manufacturing apparatus for improving uniformity according to claim 2, characterized in that: The outer contour of the spoiler (2) is circular, and the spoiler holes (21) are arranged in a circular array on the spoiler (2).

4. The glass fiber manufacturing apparatus for improving uniformity according to claim 2, characterized in that: The outer contour of the spoiler (2) is rectangular, and the spoiler holes (21) are arranged in a matrix on the spoiler (2).

5. The glass fiber manufacturing apparatus for improving uniformity according to any one of claims 3-4, characterized in that: The axes of several of the aforementioned turbulence holes (21) are inclined in a converging manner from top to bottom.

6. The glass fiber manufacturing apparatus for improving uniformity according to claim 5, characterized in that: The spoiler (2) has an upward convex shape in the middle and a downward concave shape at the outer edge; a mixing cavity (20) is provided below the spoiler (2).

7. The glass fiber manufacturing apparatus for improving uniformity according to claim 1, characterized in that: The top surface of the baffle (2) is equipped with a control component (23) with an internal fluid channel (230). The top end of the fluid channel (230) is provided with a feed hole (2301), and the bottom end is connected to the baffle hole (21). When the control component (23) bends, it can control the bending angle (2300) and length of the fluid channel (230) to adjust the resistance of the glass melt (4) flowing through the fluid channel (230) and adjust the flow rate of the glass melt (4).

8. The glass fiber manufacturing apparatus for improving uniformity according to claim 7, characterized in that: The control component (23) includes a vertically arranged first tube (231), a vertically inclined second tube (232), and a vertically inclined third tube (233); the bottom end of the first tube (231) is fixedly connected to the spoiler (2); the top end of the first tube (231) is rotatably connected to the bottom end of the second tube (232) via a first rotating shaft (234); the top end of the second tube (232) is rotatably connected to the bottom end of the third tube (233) via a second rotating shaft (235); the top end of the third tube (233) is rotatably connected to the bottom end of the first upright (24) via a third rotating shaft (236); The distance between the first rotating shaft (234) and the second rotating shaft (235) is equal to the distance between the second rotating shaft (235) and the third rotating shaft (236), and the third rotating shaft (236) is located directly above the first rotating shaft (234) to make the horizontal displacement of the first upright (24) zero when it is raised or lowered.

9. The glass fiber manufacturing apparatus for improving uniformity according to claim 8, characterized in that: The top end of the first tube (231) is connected to and communicates with a first arc-shaped tube (2311), and the bottom end of the second tube (232) is connected to and communicates with a second arc-shaped tube (2321). The first arc-shaped tube (2311) and the second arc-shaped tube (2321) are fitted and inserted in an arc shape. The top end of the second tube (232) is connected to and communicates with a third arc-shaped tube (2323), and the bottom end of the third tube (233) is connected to and communicates with a fourth arc-shaped tube (2331). The third arc-shaped tube (2323) and the fourth arc-shaped tube (2331) are fitted and inserted in an arc shape.

10. A glass fiber manufacturing process for improving uniformity, characterized in that, The glass fiber (41) is manufactured using the glass fiber manufacturing apparatus for improving uniformity as described in claim 9, comprising the following steps: S1. Glass raw materials are added into the first cavity (10) of the furnace (1); S2. Heat the glass raw material to obtain glass melt (4); S3. Drive the glass melt (4) through the turbulence hole (21) on the turbulence plate (2). S4. The glass melt (4) is drawn into glass fibers (41) by drawing a wire drawing plate (3) installed at the tail opening of the first cavity (10).

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