Bushings and glass fiber forming systems having the same

Abstract

This utility model provides a sprue structure and a glass fiber forming system having the same. The sprue structure includes a sprue body with at least one first nozzle unit, the at least one first nozzle unit having multiple first nozzles; the sprue body also has at least one second nozzle unit, the at least one first nozzle unit surrounding the at least one second nozzle unit, the second nozzle unit having multiple second nozzles; wherein the multiple first nozzles and the multiple second nozzles are all circular holes, and the diameter of the multiple first nozzles is larger than the diameter of the multiple second nozzles; this solves the problem in the prior art where the increased size of the sprue leads to uneven heat distribution in the sprue, resulting in inconsistent diameters of the extruded glass fibers.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber manufacturing technology, and more specifically, to a stencil structure and a glass fiber forming system having the same. Background Technology

[0002] In the glass fiber manufacturing industry, spinneret technology is a core component in achieving continuous glass fiber drawing. Glass fiber production typically involves extruding molten glass at high temperatures through multiple micropores in a spinneret, followed by cooling and solidification to form fibers. To ensure uniform fiber diameter, consistent strength, and a smooth surface, the design and performance of the spinneret are crucial. Traditionally, spinneret designs have favored having all orifices with the same diameter to achieve a uniform flow distribution; however, as spinneret size increases, the limitations of this design become increasingly apparent.

[0003] While the application of large spinnerets in glass fiber production can significantly improve production efficiency, their structure and thermodynamic properties often lead to uneven heat distribution. Heat is typically more concentrated in the central region of the spinneret than at the edges, resulting in a higher temperature in the center and consequently affecting the viscosity and flowability of the molten glass. This temperature unevenness causes glass fibers extruded from the central holes to be coarser in diameter, while those extruded from the edge holes are thinner, severely impacting fiber consistency and the quality of the final product. Utility Model Content

[0004] The main objective of this invention is to provide a sprue structure and a glass fiber forming system thereon, in order to solve the problem in the prior art where the increased size of the sprue leads to uneven heat distribution in the sprue, resulting in inconsistent diameters of the extruded glass fibers.

[0005] To achieve the above objectives, according to one aspect of the present invention, a sluice plate structure is provided, including a sluice plate body, wherein at least one first sluice nozzle unit is provided on the sluice plate body, and the at least one first sluice nozzle unit has a plurality of first sluice nozzles.

[0006] The main body of the sluice plate is also provided with at least one second sluice nozzle unit, at least one first sluice nozzle unit is arranged around at least one second sluice nozzle unit, and at least one second sluice nozzle unit has a plurality of second sluice nozzles;

[0007] Among them, the multiple first leaks and the multiple second leaks are all circular holes, and the diameter of the multiple first leaks is larger than the diameter of the multiple second leaks.

[0008] Furthermore, each of the first leaking nozzle units includes:

[0009] At least two first sub-units are provided on both sides of the second leak unit, and each first sub-unit is arranged along the length of the leak plate body.

[0010] At least two second sub-units are provided on both sides of the second nozzle unit, and each second sub-unit is arranged along the width direction of the nozzle body.

[0011] Furthermore, each first subunit includes:

[0012] A plurality of first leak nozzles are arranged along the length of the leak plate body, and each first leak nozzle includes a plurality of first leak nozzles arranged along the width of the leak plate body; and / or,

[0013] The aperture of the first leak is between 1.8 mm and 1.9 mm; and / or,

[0014] The two adjacent first nozzles are staggered along the width of the main body of the leak plate.

[0015] Furthermore, each second subunit includes:

[0016] A plurality of second leak nozzles are arranged along the length of the leak plate body, and each second leak nozzle includes a plurality of first leak nozzles arranged along the width of the leak plate body; and / or,

[0017] The two adjacent second nozzles are staggered along the width of the main body of the leak plate.

[0018] Furthermore, at least one second leak unit includes:

[0019] Multiple third leak nozzles are arranged along the length of the leak plate body, and each third leak nozzle includes multiple second leak nozzles arranged along the width of the leak plate body; and / or,

[0020] The aperture of the second leak is between 1.75 mm and 1.85 mm; and / or,

[0021] The two adjacent third nozzles are staggered along the width of the main body of the leak plate.

[0022] Furthermore, the main body of the sluice plate is provided with at least one third sluice unit, at least one second sluice unit is arranged around the at least one third sluice unit, the at least one third sluice unit has multiple third sluices, the multiple third sluices are circular holes, and the diameter of the multiple third sluices is smaller than the diameter of the multiple second sluices.

[0023] Furthermore, the third leak unit includes:

[0024] Multiple fourth leak nozzles are arranged along the length of the leak plate body, and each fourth leak nozzle includes multiple third leak nozzles arranged along the width of the leak plate body; and / or,

[0025] The aperture of the third leak nozzle is between 1.7 mm and 1.8 mm; and / or,

[0026] The two adjacent fourth nozzles are offset along the width of the main body of the leak plate.

[0027] Furthermore, along the length direction of the sprue plate body, the distance between the outermost fourth sprue portion of the third sprue unit and the outermost third sprue portion of at least one second sprue unit is between 77.76 mm and 95.04 mm; and / or,

[0028] Along the width direction of the sprue plate body, the distance between the outermost third sprue of the third sprue unit and the outermost second sprue of at least one second sprue unit is between 23.76 mm and 29.04 mm.

[0029] Furthermore, along the length of the sprue plate body, the distance between the outermost third sprue portion of the second sprue unit and the outermost first sprue portion of the first sprue unit is between 29.16 mm and 35.64 mm; and / or,

[0030] Along the width direction of the sprue plate body, the distance between the outermost second sprue of the second sprue unit and the outermost first sprue of at least one first sprue unit is between 23.76 mm and 29.04 mm.

[0031] According to another aspect of the present invention, a glass fiber forming system is provided, which has the above-described stencil structure.

[0032] By applying the technical solution of this utility model, the number of fiber output points is increased and the production efficiency of glass fibers is improved by setting a first nozzle unit on the baffle plate body. The location of the first nozzle unit is usually selected based on the consideration that the temperature is lower at the edge of the baffle plate, so as to optimize the flow of molten glass in that area by adjusting the orifice diameter. The configuration of multiple first nozzles allows for a more uniform distribution of fiber output in the lower-temperature edge area. The larger orifice diameter design ensures that the molten glass can pass through smoothly even at high viscosity, thereby preventing random variations in fiber diameter and improving the consistency of fiber diameter.

[0033] The introduction of the second nozzle unit increases the fiber production points in higher-temperature areas. This aims to utilize the good fluidity at high temperatures and, through a finer aperture design, produce glass fibers with more uniform diameter and superior quality, thus improving the overall product quality. This annular layout creates a temperature-gradient environment, gradually transitioning from a lower-temperature outer zone to a higher-temperature central zone. The larger aperture of the first nozzle effectively compensates for the lower edge temperature, while the second nozzle, in the higher-temperature core area, maintains appropriate viscosity and fluidity of the molten glass through a smaller aperture, ultimately achieving uniform and consistent fiber production across the entire nozzle plate. The dense arrangement of the second nozzles, leveraging the advantages of the central high-temperature region, not only increases production speed but also ensures that the fibers drawn from this region have good shaping and consistent diameter, which is crucial for improving product quality.

[0034] The circular orifice design evenly distributes pressure, reducing fluctuations in molten glass flow caused by uneven pressure distribution, thereby improving the stability and consistency of fiber production. This orifice design contributes to improved fiber forming quality in both the first and second nozzles. By precisely controlling the orifice size, this invention effectively balances the flowability of molten glass and fiber quality in different regions. Using a large-diameter first nozzle in the lower-temperature edge region and a small-diameter second nozzle in the higher-temperature center region, this differentiated orifice design overcomes the product quality problems caused by uneven heat distribution in traditional single-orifice nozzles, significantly improving production efficiency and fiber quality. Attached Figure Description

[0035] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0036] Figure 1 This illustration shows a schematic diagram of the structure of a first leak nozzle unit and a second leak nozzle unit on the leak plate body according to an embodiment of this application;

[0037] Figure 2 This invention provides a schematic diagram of the structure of a third nozzle unit on the main body of the sluice plate according to an embodiment of the present application.

[0038] Figure 3 This invention provides a schematic diagram of the structure of a fourth nozzle unit on the main body of the sluice plate according to an embodiment of the present application.

[0039] Figure 4 An embodiment of this application is shown. Figure 3 A simplified structural diagram.

[0040] The above figures include the following reference numerals:

[0041] 10. First leak nozzle unit; 101. First leak nozzle; 102. First leak nozzle section; 103. Second leak nozzle section; 20. Second leak nozzle unit; 201. Second leak nozzle; 202. Third leak nozzle section; 30. Leak plate body; 40. Third leak nozzle unit; 401. Third leak nozzle; 402. Fourth leak nozzle section. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] In the glass fiber manufacturing industry, spinneret technology is a core component in achieving continuous glass fiber drawing. Glass fiber production typically involves extruding molten glass at high temperatures through multiple micropores in a spinneret, which then cools and solidifies to form fibers. To ensure uniform fiber diameter, consistent strength, and a smooth surface, the design and performance of the spinneret are crucial. Traditionally, spinneret designs have favored having all spinneret orifices with the same diameter to achieve a uniform flow distribution; however, as spinneret size increases, the limitations of this design become increasingly apparent.

[0044] While the application of large spinnerets in glass fiber production can significantly improve production efficiency, their structure and thermodynamic properties often lead to uneven heat distribution. Heat is typically more concentrated in the central region of the spinneret than at the edges, resulting in a higher temperature in the center and consequently affecting the viscosity and flowability of the molten glass. This temperature unevenness causes glass fibers extruded from the central holes to be coarser in diameter, while those extruded from the edge holes are thinner, severely impacting fiber consistency and the quality of the final product.

[0045] The main objective of this invention is to provide a sprue structure and a glass fiber forming system thereon, in order to solve the problem in the prior art where the increased size of the sprue leads to uneven heat distribution and consequently inconsistent diameters of the extruded glass fibers.

[0046] This application first provides a leak plate structure, which includes a leak plate body 30. The leak plate body 30 is provided with at least one first leak nozzle unit 10, and the at least one first leak nozzle unit 10 has a plurality of first leak nozzles 101.

[0047] The sluice plate body 30 is also provided with at least one second sluice nozzle unit 20, at least one first sluice nozzle unit 10 is arranged around at least one second sluice nozzle unit 20, and at least one second sluice nozzle unit 20 has a plurality of second sluice nozzles 201;

[0048] Among them, the multiple first leaks 101 and the multiple second leaks 201 are all circular holes, and the diameter of the multiple first leaks 101 is larger than the diameter of the multiple second leaks 201.

[0049] Specifically, such as Figure 1 As shown, the leak plate structure provided in this application includes a leak plate body 30. In this embodiment, the leak plate body 30 is rectangular in shape. At least one first leak nozzle unit 10 is provided on the leak plate body 30, and each first leak nozzle unit 10 has multiple first leak nozzles 101. At least one second leak nozzle unit 20 is also provided on the leak plate body 30, such as... Figure 1 and Figure 2 As shown, the first leak unit 10 is disposed on the outer ring of the second leak unit 20, and each second leak unit 20 has a plurality of second leaks 201, wherein each first leak 101 and each second leak 201 are circular holes, and the hole diameter of each first leak 101 is larger than the hole diameter of each second leak 201.

[0050] The first nozzle unit 10 is located on the outer ring of the second nozzle unit 20, and the aperture of the first nozzle 101 is larger than that of the second nozzle 201. This design can effectively adjust the heat distribution on the nozzle body 30. Since the aperture of the first nozzle 101 is larger, it can compensate for the insufficient fluidity of the molten glass caused by the low edge temperature, ensuring the uniform production of glass fibers. By adjusting the aperture of the first nozzle 101 at different positions, the problem of fiber diameter difference caused by uneven temperature distribution is effectively solved.

[0051] This inner and outer ring structure utilizes the larger aperture of the first nozzle 101 to compensate for the low edge temperature, while the second nozzle 201, located in the central area with a higher temperature, only needs to maintain a smaller aperture. This differentiated design effectively balances the glass melt flow and fiber quality in different areas of the sprue body 30.

[0052] By precisely controlling the size of the nozzle orifice in different areas, the flowability of the molten glass is finely adjusted. In the lower temperature area (first nozzle unit 10), a larger diameter first nozzle 101 is used to promote the flow of molten glass; while in the higher temperature area (second nozzle unit 20), a smaller diameter second nozzle 201 is used to maintain good fiber formation. This design effectively overcomes the product quality problems caused by uneven heat distribution in traditional single-aperture nozzles.

[0053] It can compensate for the insufficient fluidity of molten glass in the edge area, ensuring that the smoothness of molten glass flowing out of the nozzle is roughly the same under different temperature conditions. This differentiated aperture design effectively reduces the fiber diameter deviation caused by temperature gradient, improves the consistency of fiber diameter and the stability of the production process.

[0054] Furthermore, each of the first leak units 10 includes:

[0055] At least two first sub-units are provided on both sides of the second leak unit 20, and each first sub-unit is arranged along the length direction of the leak plate body 30.

[0056] At least two second sub-units are provided on both sides of the second leak unit 20, and each second sub-unit is arranged along the width direction of the leak plate body 30.

[0057] Specifically, such as Figure 1 and Figure 2 As shown, each first leak unit 10 includes at least two first sub-units. Along the length direction of the leak plate body 30, a first sub-unit is arranged on the left and right sides of the second leak unit 20. Each first leak unit 10 also includes at least two second sub-units. Along the width direction of the leak plate body 30, a second sub-unit is arranged on the left and right sides of the second leak unit 20. The two oppositely arranged first sub-units and the two oppositely arranged second sub-units are connected to each other to form a rectangular first leak unit 10. The second leak unit 20 is located inside the first leak unit 10.

[0058] This layout strategy along the length direction can specifically solve the problem of fiber diameter difference caused by uneven heat distribution along the length direction of the sprue body 30. The larger aperture design of the first sub-unit effectively compensates for the insufficient fluidity of the molten glass in the lower temperature areas on both sides of the second sprue unit 20, ensuring uniform fiber production in this area.

[0059] The second sub-unit layout along the width direction complements the first sub-unit, jointly solving the problem of uneven heat distribution of the baffle body 30 along the width direction. By adjusting the aperture of the second sub-unit, the flowability of the molten glass and the quality of the fibers in the edge region are further optimized.

[0060] The rectangular first nozzle unit 10 combines the advantages of the first and second sub-units, and can compensate equally for the influence of temperature on the flowability of molten glass in all directions, ensuring the consistency and stability of fiber production on the entire nozzle body 30.

[0061] This nested structure design allows the second nozzle unit 20 to fully utilize the thermal environment advantage formed by the first nozzle unit 10, namely the relatively high temperature and low viscosity in the central area. By using a second nozzle 201 with a smaller aperture, not only is the loss of molten glass reduced, but the fineness and uniformity of fiber production in the central area are also guaranteed.

[0062] By combining the first nozzle unit 10 and the second nozzle unit 20, a highly efficient and uniform fiber production system is formed. The first nozzle unit 10 solves the problem of low edge temperature through its unique aperture design; while the second nozzle unit 20 provides high-quality fiber production in the central region. This structural design ensures the consistency of glass fiber diameter and the stability of quality from the edge to the center.

[0063] Furthermore, each first subunit includes:

[0064] A plurality of first leak nozzle portions 102 are arranged along the length direction of the leak plate body 30, and each first leak nozzle portion 102 includes a plurality of first leak nozzles 101 arranged along the width direction of the leak plate body 30; and / or,

[0065] The aperture of the first drain 101 is between 1.8 mm and 1.9 mm; and / or,

[0066] The two adjacent first leak nozzles 102 are staggered along the width direction of the leak plate body 30.

[0067] Specifically, such as Figure 1 and Figure 2 Each first subunit includes a plurality of first leak nozzles 102 arranged at intervals along the horizontal direction. Adjacent first leak nozzles 102 are staggered along the width of the leak plate body 30. Each first leak nozzle 102 includes a plurality of first leak nozzles 101 arranged at intervals along the vertical direction. The aperture of the first leak nozzles 101 is between 1.8mm and 1.9mm, for example, values ​​such as 1.81mm, 1.83mm, 1.85mm, 1.87mm, 1.89mm, and 1.9mm, as long as they are within the range of 1.8mm to 1.9mm. In this embodiment, the aperture of the first leak nozzle 101 is 1.85mm.

[0068] The horizontally spaced and width-staggered arrangement of the first nozzle portion 102 in this application effectively controls the heat distribution in the edge area of ​​the extruder body 30, reducing fiber diameter fluctuations caused by uneven temperature. The aperture setting between 1.8mm and 1.9mm, combined with a preferred aperture of 1.85mm, further optimizes the cooling efficiency during fiber extrusion, ensuring the consistency and uniformity of fiber diameter.

[0069] This horizontally spaced arrangement helps create a stable temperature environment at the edge of the sprue, ensuring that the molten glass maintains appropriate fluidity even at lower temperatures. By rationally designing the position and number of the first sub-units, the heat source can be evenly distributed, preventing localized overcooling that could lead to excessively thin fibers or fiber breakage, thereby improving fiber yield and quality.

[0070] The staggered arrangement reduces the direct thermal impact between adjacent first nozzle sections 102, forming an effective temperature buffer zone and ensuring that each group of first nozzle sections 102 has independent and stable temperature conditions. Furthermore, this layout avoids fiber diameter inhomogeneity caused by mutual interference from molten glass flow in the width direction, thereby improving fiber uniformity and stability.

[0071] The adjustable aperture (1.8mm to 1.9mm) and the layout design of the first nozzle 102 enable greater flexibility and adaptability in the production process. The aperture size and layout can be adjusted according to different raw material characteristics and process requirements to achieve the best fiber extrusion effect. In this embodiment, the 1.85mm aperture setting of the first nozzle 101 helps the cooling and curing process after fiber extrusion, reduces the mutual influence between fibers, and ensures that the fibers have good surface quality and mechanical properties.

[0072] Furthermore, each second subunit includes:

[0073] Multiple second leak nozzles 103 are arranged along the length of the leak plate body 30, and each second leak nozzle 103 includes multiple first leak nozzles 101 arranged along the width of the leak plate body 30; and / or,

[0074] Two adjacent second nozzles 103 are staggered along the width direction of the nozzle body 30.

[0075] Specifically, each second subunit includes multiple second leak nozzles 103, which are spaced apart along the length of the leak plate body 30. Each second leak nozzle 103 includes multiple first leak nozzles 101 arranged along the width of the leak plate body 30. Adjacent second leak nozzles 103 are staggered along the width of the leak plate body 30.

[0076] The spaced arrangement of the second nozzle section 103 along its length and its staggered arrangement along its width can significantly improve the heat distribution on the die body 30 and reduce the impact of temperature gradient on fiber diameter. The staggered arrangement helps to distribute heat evenly on the die, prevents the formation of hot and cold spots, and ensures temperature consistency during fiber extrusion.

[0077] The staggered arrangement of the second nozzle 103 helps to improve the cooling and curing process after fiber extrusion, reduces the mutual influence between fibers, and ensures that the fibers have good surface quality and mechanical properties.

[0078] Furthermore, at least one second leak unit 20 includes:

[0079] A plurality of third leak nozzles 202 are arranged along the length direction of the leak plate body 30, and each third leak nozzle 202 includes a plurality of second leak nozzles 201 arranged along the width direction of the leak plate body 30; and / or,

[0080] The aperture of the second drain 201 is between 1.75 mm and 1.85 mm; and / or,

[0081] The two adjacent third nozzles 202 are offset along the width direction of the nozzle body 30.

[0082] Specifically, each second leak unit 20 includes a plurality of third leak portions 202, which are arranged along the length direction of the leak plate body 30. Adjacent third leak portions 202 are spaced apart along the width direction of the leak plate body 30. Each third leak portion 202 includes a plurality of second leaks 201 arranged along the width direction of the leak plate body 30. The aperture of the plurality of second leaks 201 is between 1.75mm and 1.85mm, for example, values ​​such as 1.75mm, 1.77mm, 1.79mm, 1.80mm, 1.81mm, 1.83mm, and 1.85mm, as long as they are within the range of 1.75mm to 1.85mm. In this embodiment, the size of the third leak 401 is 1.8mm.

[0083] Multiple third nozzles 202 arranged along the length direction can evenly distribute the flow path of the molten glass, ensuring that the heat in the central area is fully utilized. At the same time, the layout adjustment along the length direction can reduce the fluctuation of fiber diameter, improve fiber uniformity and production efficiency. This arrangement can also optimize the distribution of heat energy and avoid the problem of excessive viscosity of molten glass caused by uneven temperature.

[0084] The spacing along the width direction creates an effective temperature buffer zone, preventing localized overheating caused by excessively high temperatures in adjacent nozzle sections, which could affect fiber quality. Simultaneously, this staggered design reduces direct thermal impact between nozzle sections, minimizes mutual interference during molten glass flow, and ensures independent and stable fiber production for each third nozzle section 202, thereby improving fiber uniformity and consistency.

[0085] In this embodiment, the orifice size of the third nozzle 401 is precisely controlled to 1.8 mm, which is the result of optimization based on consideration of the temperature distribution in the central region and the viscosity characteristics of the molten glass. The orifice size directly determines the flow rate of the molten glass and the diameter of the fibers. In the central high-temperature region, the 1.8 mm orifice size of the third nozzle 401 ensures that the fiber diameter is within the target range, while avoiding poor fiber drawing due to an excessively small orifice size or unstable fiber diameter due to an excessively large orifice size.

[0086] The arrangement of the third nozzle section 202 along the length direction and the spacing design in the width direction help to achieve more precise temperature control on the die body 30. This design reduces the temperature difference between the central area and the edge area, improves the uniformity of heat distribution, and ensures the diameter consistency during the fiber extrusion process.

[0087] The width-direction spacing between adjacent third nozzles 202 reduces mutual interference during fiber extrusion, avoids fiber aggregation and entanglement during extrusion, and improves the stability of fiber extrusion and the processing performance of the fiber.

[0088] The design of the third nozzle section 202 arranged along the length direction and the spacing in the width direction optimizes the spatial layout of the die plate body 30, enabling more fiber extrusion points to be added within a limited area, thereby improving production efficiency and capacity and reducing the production cost per unit product.

[0089] By adjusting the arrangement density of the third nozzle 202 and the aperture size of the second nozzle 201 (between 1.75mm and 1.85mm), it is possible to adapt to different raw material characteristics, process requirements and product specifications, thereby improving the flexibility of the production process and the adaptability of the product. In the embodiments of this application, the aperture setting of the second nozzle 201, combined with the layout of the third nozzle 202, helps to improve the cooling and curing process after fiber extrusion, ensuring that the fiber has good surface quality and mechanical properties.

[0090] Furthermore, the sluice plate body 30 is also provided with at least one third sluice unit 40, and at least one second sluice unit 20 is arranged around the at least one third sluice unit 40. The at least one third sluice unit 40 has a plurality of third sluices 401, which are circular holes, and the diameter of the plurality of third sluices 401 is smaller than the diameter of the plurality of second sluices 201.

[0091] Specifically, such as Figure 3 and Figure 4 (To make it easier to distinguish between multiple nozzle units, please refer to...) Figure 4 , Figure 4 As shown in the figure (some of the leaks in each leak unit have been removed), at least one third leak unit 40 is also provided on the leak plate body 30. The second leak unit 20 is located on the outer ring of the third leak unit 40. Each third leak unit 40 includes multiple third leaks 401. Each third leak 401 is a circular hole. The diameter of each third leak 401 is smaller than the diameter of each second leak 201.

[0092] The smaller aperture design of the third nozzle 401 in this application can uniformly distribute the pressure flowing through it, reducing the fluctuation of the glass melt flow. Especially when in a more uniform temperature region, it can produce finer and more uniform glass fibers. The arrangement of the third nozzle unit 40, especially its position within the inner ring of the second nozzle unit 20, helps to further optimize the heat distribution on the extruder body 30. This contributes to more uniform temperature control during fiber extrusion.

[0093] The layered layout of the third nozzle unit 40 and the second nozzle unit 20 not only compensates for the different viscosities of the molten glass caused by different regional temperatures, but also reduces the interaction between fibers of different sizes during extrusion, avoids entanglement and aggregation between fibers, and improves the stability of fiber extrusion and the processing performance of fibers.

[0094] By setting a third nozzle unit 40 in the inner ring of the second nozzle unit 20, this design optimizes the spatial layout of the nozzle body 30 and can better cope with the differences in glass melt flow caused by temperature changes during the production process, so as to further improve the overall quality and uniformity of fiber production.

[0095] Furthermore, the third leak unit 40 includes:

[0096] Multiple fourth leak nozzles 402 are arranged along the length of the leak plate body 30, and each fourth leak nozzle 402 includes multiple third leak nozzles 401 arranged along the width of the leak plate body 30; and / or,

[0097] The aperture of the third drain 401 is between 1.7 mm and 1.8 mm; and / or,

[0098] The two adjacent fourth nozzles 402 are offset along the width direction of the nozzle body 30.

[0099] Specifically, such as Figure 3 and Figure 4 As shown, each third leak unit 40 includes multiple fourth leak portions 402 arranged at intervals along the length direction of the leak plate body 30. Adjacent fourth leak portions 402 are staggered along the width direction of the leak plate body 30. Each fourth leak portion 402 includes multiple third leaks 401 arranged along the width direction of the leak plate body 30. The aperture of the third leaks 401 is between 1.7mm and 1.8mm, for example, values ​​such as 1.7mm, 1.72mm, 1.74mm, 1.76mm, 1.78mm, and 1.8mm, as long as they are within the range of 1.7mm to 1.8mm. In this embodiment, the aperture of the third leak 401 is 1.75mm.

[0100] This longitudinally spaced arrangement ensures a more uniform heat distribution across the sprue body 30. By adding more nozzle points in areas with relatively high temperatures, the fourth nozzle section 402 can release molten glass more effectively, avoiding abnormal fiber diameter increase or adhesion caused by localized overheating, thereby improving fiber production quality and speed.

[0101] The staggered arrangement in the width direction prevents adjacent fourth nozzle sections 402 from directly aligning, reducing heat concentration and avoiding mutual interference of molten glass flow below the same row of nozzles, thus improving the stability and uniformity of fiber production. This layout also effectively utilizes the space resources of the stencil, increasing the quantity of fibers produced without affecting fiber quality.

[0102] The arrangement of multiple third nozzles 401 in the width direction ensures uniform fiber output across the entire width range, avoiding inconsistent fiber diameters caused by local temperature or pressure variations.

[0103] The 1.75mm orifice design of the third nozzle 401 in this embodiment is an optimized result based on consideration of the temperature and viscosity of the molten glass in the central region of the nozzle plate. A smaller orifice allows for better control of the molten glass flow rate, ensuring that the fiber diameter remains within the target range even at high temperatures, while avoiding fiber diameter reduction and strength decrease caused by excessive flow. The orifice range of 1.7mm to 1.8mm ensures that the third nozzle unit 40 can stably produce high-quality continuous fibers in the high-temperature region.

[0104] Furthermore, along the length direction of the sprue body 30, the distance between the outermost fourth sprue portion 402 of the third sprue unit 40 and the outermost third sprue portion 202 of at least one second sprue unit 20 is between 77.76 mm and 95.04 mm; and / or,

[0105] Along the width direction of the sprue body 30, the distance between the outermost third sprue 401 of the third sprue unit 40 and the outermost second sprue 201 of at least one second sprue unit 20 is between 23.76 mm and 29.04 mm.

[0106] Specifically, along the length of the sprue plate body 30, the outermost fourth sprue portion 402 of the third sprue unit 40 (e.g., Figure 3 and Figure 4As shown, the distance between the fourth leak portion 402 on both sides of the third leak unit 40 in the horizontal direction and the outermost third leak portion 202 of the second leak unit 20 is between 77.76mm and 95.04mm. In this embodiment, the distance between the two is 86.4mm. Along the width direction of the leak plate body 30, the distance between the outermost third leak 401 of the third leak unit 40 and the outermost second leak 201 of the adjacent second leak unit 20 is between 23.76mm and 29.04mm. In this embodiment, the distance between the two is 26.4mm.

[0107] In this technical solution, the distance between the outermost fourth leak part 402 of the third leak unit 40 and the outermost third leak part 202 of the second leak unit 20 is set to ensure a smooth transition of heat energy from the higher temperature third leak unit 40 to the lower temperature second leak unit 20. This maintains the gradual change in the viscosity of the molten glass from the edge to the center of the sprue body 30, avoids the instability of fiber diameter caused by sudden temperature changes, and improves the uniformity and consistency of fiber production.

[0108] The 26.4mm width spacing design in this embodiment is also intended to create a buffer zone for gradual temperature changes, ensuring that temperature changes are not sudden and drastic. This helps maintain the relative stability of the glass melt viscosity. In this way, even in the width direction, the diameter of the glass fibers can be precisely controlled, avoiding unnecessary changes in fiber thickness during production and further improving the quality of the fiber products.

[0109] In this embodiment, by precisely setting the distance between the two units, the technical solution of this application not only optimizes the temperature distribution but also effectively controls the variation range of fiber diameter. The selection of a spacing of 86.4 mm in the length direction and 26.4 mm in the width direction creates an ideal temperature gradient, which can ensure fiber production in the edge area while maintaining high-quality fiber production in the central area.

[0110] Furthermore, along the length of the sprue body 30, the distance between the outermost third sprue portion 202 of the second sprue unit 20 and the outermost first sprue portion 102 of the first sprue unit 10 is between 29.16 mm and 35.64 mm; and / or,

[0111] Along the width direction of the sprue plate body 30, the distance between the outermost second sprue 201 of the second sprue unit 20 and the outermost first sprue 101 of at least one first sprue unit 10 is between 23.76 mm and 29.04 mm.

[0112] Specifically, along the length of the sprue plate body 30, the second sprue unit 20 is located at the outermost third sprue portion 202 (e.g., ...). Figure 3 and Figure 4 As shown, the distance between the third leak portion 202 on both sides of the second leak unit 20 in the horizontal direction and the outermost first leak portion 102 of the first leak unit 10 (and the distance between the first leak portion 102 adjacent to the outermost third leak portion 202) is between 29.16 mm and 35.64 mm. Along the width direction of the leak plate body 30, the distance between the outermost second leak 201 of the second leak unit 20 and the outermost first leak 101 of the first leak unit 10 (both are the upper or lower half of the leak plate body 30) is between 23.76 mm and 29.04 mm.

[0113] The spacing along the length is designed to ensure a smooth temperature transition and avoid abrupt changes in fiber diameter caused by excessive temperature differences between the edge and the center. Specifically, a suitable temperature buffer zone is formed between 29.16 mm and 35.64 mm, allowing the edge temperature to gradually transition to the center temperature, thereby maintaining the continuity of the glass melt viscosity and reducing fluctuations in fiber diameter.

[0114] The spacing range of 23.76 mm to 29.04 mm in the width direction is also intended to achieve a smooth transition between temperature and viscosity, and to ensure the formation of an effective temperature buffer zone in the width direction. This setting not only helps to maintain the consistency of fiber diameter, but also further optimizes the fiber texture, because the formation of the temperature buffer zone can reduce the sudden change in the viscosity of the molten glass caused by abrupt temperature changes, thereby avoiding problems such as uneven fiber diameter and inconsistent quality in the width direction.

[0115] By controlling the distance between the second nozzle unit 20 and the first nozzle unit 10, the temperature distribution can be optimized to the maximum extent without affecting the overall structural stability. This ensures a gradual transition of temperature along the length and width of the nozzle body 30, avoiding significant fluctuations in fiber diameter and texture, and improving the uniformity and consistency of the product.

[0116] This application also provides a glass fiber forming system having the above-described stencil structure.

[0117] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0118] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0119] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0120] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0121] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0122] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A perforated plate structure, comprising a perforated plate body (30), characterized in that, The sluice plate body (30) is provided with at least one first sluice nozzle unit (10), and the at least one first sluice nozzle unit (10) has a plurality of first sluice nozzles (101); The main body (30) of the sluice plate is also provided with at least one second sluice unit (20), at least one first sluice unit (10) is arranged around at least one second sluice unit (20), and at least one second sluice unit (20) has a plurality of second sluices (201); Among them, the plurality of first leaks (101) and the plurality of second leaks (201) are all circular holes, and the diameter of the plurality of first leaks (101) is larger than the diameter of the plurality of second leaks (201).

2. The perforated plate structure according to claim 1, characterized in that, Each of the first leaking nozzle units (10) includes: At least two first sub-units are provided on both sides of the second leak unit (20), and each first sub-unit is arranged along the length direction of the leak plate body (30). At least two second sub-units are provided on both sides of the second leak unit (20), and each second sub-unit is arranged along the width direction of the leak plate body (30).

3. The perforated plate structure according to claim 2, characterized in that, Each of the first sub-units includes: A plurality of first leak nozzle portions (102) are arranged along the length direction of the leak plate body (30), and each first leak nozzle portion (102) includes a plurality of first leak nozzles (101) arranged along the width direction of the leak plate body (30); and / or, The aperture of the first leak (101) is between 1.8 mm and 1.9 mm; and / or, The two adjacent first leak nozzles (102) are staggered along the width direction of the leak plate body (30).

4. The perforated plate structure according to claim 2, characterized in that, Each of the second sub-units includes: A plurality of second leak nozzles (103) are arranged along the length direction of the leak plate body (30), and each second leak nozzle (103) includes a plurality of first leak nozzles (101) arranged along the width direction of the leak plate body (30); and / or, Two adjacent second leak nozzles (103) are staggered along the width direction of the leak plate body (30).

5. The perforated plate structure according to claim 1, characterized in that, At least one of the second leak unit (20) includes: A plurality of third leak nozzles (202) are arranged along the length direction of the leak plate body (30), and each third leak nozzle (202) includes a plurality of second leak nozzles (201) arranged along the width direction of the leak plate body (30); and / or, Wherein, the aperture of the second leak (201) is between 1.75 mm and 1.85 mm; and / or, The two adjacent third nozzles (202) are offset along the width direction of the leak plate body (30).

6. The perforated plate structure according to claim 1, characterized in that, The sluice plate body (30) is further provided with at least one third sluice unit (40), at least one second sluice unit (20) is arranged around at least one third sluice unit (40), at least one third sluice unit (40) has a plurality of third sluices (401), the plurality of third sluices (401) are circular holes, and the aperture of the plurality of third sluices (401) is smaller than the aperture of the plurality of second sluices (201).

7. The perforated plate structure according to claim 6, characterized in that, The third leak unit (40) includes: A plurality of fourth leak nozzles (402) are arranged along the length direction of the leak plate body (30), and each fourth leak nozzle (402) includes a plurality of third leak nozzles (401) arranged along the width direction of the leak plate body (30); and / or, Wherein, the aperture of the third drain (401) is between 1.7 mm and 1.8 mm; and / or, The two adjacent fourth nozzles (402) are offset along the width direction of the leak plate body (30).

8. The perforated plate structure according to claim 7, characterized in that, Along the length of the leak plate body (30), the distance between the outermost fourth leak portion (402) of the third leak unit (40) and the outermost third leak portion (202) of at least one second leak unit (20) is between 77.76 mm and 95.04 mm; and / or, Along the width direction of the leak plate body (30), the distance between the outermost third leak (401) of the third leak unit (40) and the outermost second leak (201) of at least one second leak unit (20) is between 23.76 mm and 29.04 mm.

9. The perforated plate structure according to claim 7, characterized in that, Along the length of the leak plate body (30), the distance between the outermost third leak portion (202) of the second leak unit (20) and the outermost first leak portion (102) of the first leak unit (10) is between 29.16 mm and 35.64 mm; and / or, Along the width direction of the leak plate body (30), the distance between the outermost second leak (201) of the second leak unit (20) and the outermost first leak (101) of at least one first leak unit (10) is between 23.76 mm and 29.04 mm.

10. A glass fiber forming system, characterized in that, The glass fiber forming system has a spindle structure as described in any one of claims 1 to 9.

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