A fiber drawing and coating device for glass fiber production and processing.

Abstract

This invention discloses a fiber drawing and coating device for glass fiber production and processing, belonging to the field of glass fiber production technology. It includes a frame, with a heating crucible mounted on the upper end of the frame. A fiber drawing mechanism is connected to the bottom of the heating crucible, and several shrouds are equidistantly arranged at the bottom of the fiber drawing mechanism. A coating mechanism is mounted on each shroud. This invention achieves regional coating of glass fibers by using regionally arranged fiber drawing cavities in conjunction with corresponding shrouds, distribution pipes, and coating boxes. This significantly reduces the amount of fiber produced in each region, allowing the coating nozzles on both sides of the shrouds to more easily cover each glass fiber filament with the coating material within the region. This effectively avoids uneven coating or missed areas in the middle of the glass fiber, ensuring coating uniformity. The shrouds also effectively prevent the sprayed material from scattering, reducing material waste and maintaining a clean working environment.

Description

Technical Field

[0001] This invention belongs to the field of glass fiber production technology, and particularly relates to a glass fiber drawing and coating device for glass fiber production and processing. Background Technology

[0002] In the production and processing of glass fiber, drawing and coating are key processes that directly affect product quality and production efficiency.

[0003] In the prior art, patent CN119528428B discloses a glass fiber drawing and coating device, specifically relating to the field of glass fiber production and processing technology. The device includes a base, a first longitudinal frame fixedly installed on one side of the top of the base, a mounting seat fixedly installed on the top of the first longitudinal frame, a drawing mechanism fixedly installed on the side of the mounting seat away from the first longitudinal frame, a second longitudinal frame fixedly installed on the top of the base near the first longitudinal frame, a heating crucible for use with the drawing mechanism fixedly installed on the top of the second longitudinal frame, a coating component fixedly installed at the bottom of the drawing mechanism, and a winding mechanism fixedly installed at the top of the base. By setting up the drawing mechanism and using the coating component and winding mechanism, glass fiber drawing, coating, and continuous uniform winding of the glass fiber can be performed without stopping the machine, reducing the accumulation of molten glass and thus improving the overall drawing efficiency of the molten glass.

[0004] However, the above-mentioned fiber drawing and coating device has the following technical problems: On the one hand, the fiber drawing mechanism is an integral design, which cannot realize regional production and coating. The single output of filaments is large. Since it is sprayed on both sides, the glass fiber filaments in the middle are prone to uneven coating, which affects the product performance. On the other hand, the material is easy to scatter during the spraying process, resulting in a lot of waste and polluting the working environment. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a fiber drawing and coating device for glass fiber production and processing, which has the advantages of improving coating uniformity and maintaining a clean working environment. It solves the problems of uneven coating of glass fiber in the middle and scattered sprayed material, which pollutes the working environment, that are common in existing devices.

[0006] This invention is implemented as follows: a fiberglass drawing and coating device for fiberglass production and processing includes a frame, a heating crucible mounted on the upper end of the frame, a fiber drawing mechanism connected to the bottom of the heating crucible, and several equidistant covers arranged at the bottom of the fiber drawing mechanism, with a coating mechanism mounted on each cover. The fiber drawing mechanism includes a fiber drawing crucible fixedly mounted on the frame, and several guide plates arranged inside the fiber drawing crucible. The fiber drawing crucible is divided into several fiber drawing cavities by the guide plates, and each fiber drawing cavity has a fiber drawing hole at its bottom. The guide plates are hollow heating structures with built-in independent temperature control units for adjusting the temperature according to the fiber output of different fiber drawing cavities.

[0007] As a preferred embodiment of the present invention, the coating mechanism includes a conveying pump, which is fixedly installed on the frame. The output end of the conveying pump is fixedly connected to a main conveying pipe, and the main conveying pipe is provided with several branch pipes.

[0008] In a preferred embodiment of the present invention, the end of the branch pipe away from the main conveying pipe is open, and a coating box is fixedly connected to the inner side of the open end of the branch pipe. The interior of the coating box is connected to the branch pipe, and a plurality of coating spray holes are provided at the end of the coating box located inside the cover cylinder.

[0009] As a preferred embodiment of the present invention, the guide plate includes an inverted V-shaped structure, the lower side of the guide plate is fixedly connected to the upper surface of the bottom wall of the wire drawing crucible, and the two sides of the guide plate are fixedly connected to the inner surface of the side wall of the wire drawing crucible.

[0010] As a preferred embodiment of the present invention, a first through hole is provided at the center of the side of the cover cylinder, and an insert rod is slidably inserted into the first through hole. One end of the insert rod is connected to a scraper, the upper side of the scraper is attached to the lower surface of the bottom wall of the wire drawing crucible, and the two sides of the scraper can be attached to the inner surface of the side wall of the cover cylinder.

[0011] In a preferred embodiment of the present invention, the insert rod is rotatably connected to the scraper, and a strip rod is fixedly connected to the end of the insert rod. The strip rod is attached to the surface of the scraper, and the length of the strip rod is greater than the width of the cover.

[0012] As a preferred embodiment of the present invention, the other end of the insertion rod is elastically connected to a connecting rod via an elastic element, and the two ends of the connecting rod are provided with inserts. The side of the plastic-coated box is provided with a second strip-shaped hole, and the inserts are inserted into the second strip-shaped hole.

[0013] In a preferred embodiment of the present invention, the elastic element includes a circular plate, a spring, and a pressure ring; the circular plate is fixedly connected to the end of the insertion rod, one end of the spring is fixedly connected to the circular plate, and the other end of the spring is fixedly connected to the pressure ring, the pressure ring being fitted against the connecting rod.

[0014] As a preferred embodiment of the present invention, a negative pressure pipe is provided on the lower side of the scraper, the negative pressure pipe is a rectangular tube, and the negative pressure pipe is located on the lower side of the cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention achieves regional coating of glass fibers by using a drawing chamber with corresponding shrouds, tubes, and coating boxes arranged in sections. This significantly reduces the amount of fiber produced in each section, allowing the coating spray holes on both sides of the shroud to more easily cover each glass fiber filament with the coating material. This effectively avoids uneven coating or missed coating in the middle of the glass fiber, ensuring coating uniformity.

[0017] This invention effectively prevents sprayed materials from scattering by setting up a cover, reducing material waste and maintaining a clean working environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of Embodiment 1 of the present invention;

[0020] Figure 3 This is a top view of a partial structure of Embodiment 1 of the present invention;

[0021] Figure 4 As in Embodiment 1 of the present invention Figure 3 Schematic diagram of the three-dimensional structure of the AA cross section;

[0022] Figure 5 This is a three-dimensional structural diagram of the coating mechanism according to Embodiment 1 of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the entire first perspective of Embodiment 2 of the present invention;

[0024] Figure 7 In this invention Figure 6 A magnified structural diagram of part B in the middle section;

[0025] Figure 8 This is a three-dimensional structural diagram of the entire second perspective of Embodiment 2 of the present invention;

[0026] Figure 9 In this invention Figure 8 A magnified structural diagram of section C;

[0027] Figure 10 In this invention Figure 8 A magnified structural diagram of part D in the middle.

[0028] In the diagram: 1. Frame; 2. Coating mechanism; 21. Conveyor pump; 22. Main conveyor pipe; 23. Branch pipe; 24. Coating box; 25. Coating nozzle; 3. Wire drawing mechanism; 31. Wire drawing crucible; 32. Guide plate; 33. Wire drawing cavity; 34. Wire drawing hole; 4. Heating crucible; 5. Cover; 7. Insert rod; 8. Scraper; 9. Strip rod; 10. Elastic element; 11. Connecting rod; 12. Insert plate; 13. Second strip hole; 101. Circular plate; 102. Spring; 103. Pressure ring; 14. Negative pressure pipe. Detailed Implementation

[0029] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0030] The structure of the present invention will now be described in detail with reference to the accompanying drawings. Example

[0031] like Figures 1 to 5 As shown in the figure, the glass fiber production and processing drawing and coating device provided by the embodiment of the present invention includes a frame 1, a heating crucible 4 is provided at the upper end of the frame 1, a drawing mechanism 3 is connected to the bottom of the heating crucible 4, a plurality of covers 5 are equidistantly arranged at the bottom of the drawing mechanism 3, and a coating mechanism 2 is provided on the covers 5.

[0032] The heating crucible 4 is used to heat and melt the glass fiber raw material, so that the raw material is in a molten state, providing a shaped material for the subsequent drawing process.

[0033] Furthermore, the wire drawing mechanism 3 includes a wire drawing crucible 31, which is fixedly installed on the frame 1. Several guide plates 32 are provided inside the wire drawing crucible 31, and the wire drawing crucible 31 is divided into several wire drawing cavities 33 by the several guide plates 32. Each wire drawing cavity 33 is provided with a wire drawing hole 34 at its bottom.

[0034] The drawing crucible 31 is divided into multiple drawing cavities 33 by several guide plates 32, so as to realize the regional processing of glass fiber production. After the molten glass raw material enters the drawing crucible 31 from the heating crucible 4, it is guided by the guide plates 32 to each drawing cavity 33. The drawing hole 34 at the bottom of each drawing cavity 33 shapes the molten raw material, so that the raw material forms glass fiber filaments through the drawing hole 34.

[0035] Furthermore, the coating mechanism 2 includes a delivery pump 21, which is fixedly installed on the frame 1. The output end of the delivery pump 21 is fixedly connected to a main delivery pipe 22. Several branch pipes 23 are provided on the main delivery pipe 22. The end of the branch pipe 23 away from the main delivery pipe 22 is open. A coating box 24 is fixedly connected to the inside of the open end of the branch pipe 23. The inside of the coating box 24 is connected to the branch pipe 23. The coating box 24 is fixedly installed on the cover cylinder 5 and penetrates the side wall of the cover cylinder 5. Several coating spray holes 25 are provided at the end of the coating box 24 located inside the cover cylinder 5.

[0036] Each drawing chamber 33 has a corresponding cover 5 at the bottom of the wire outlet. After the glass fiber is drawn out from the drawing hole 34, it enters the corresponding cover 5. The delivery pump 21 delivers the coating material to several branch pipes 23 through the main delivery pipe 22. The coating material enters the coating box 24 through the branch pipes 23 and is then sprayed onto the glass fiber from both sides of the cover 5 through the coating spray hole 25.

[0037] By using the zoned drawing chamber 33 in conjunction with the corresponding shroud 5, branch pipe 23, and coating box 24, zoned coating of glass fiber is achieved, which greatly reduces the amount of fiber output in each zone. This allows the coating nozzles 25 on both sides of the shroud 5 to more easily cover each glass fiber filament with the coating material, effectively avoiding uneven coating or missed coating in the middle of the glass fiber and ensuring coating uniformity. At the same time, the shroud 5 can effectively prevent the sprayed material from scattering, reduce material waste, and maintain a clean working environment.

[0038] The guide plate 32 is a hollow heating structure with a built-in independent temperature control unit, which is used to adjust the temperature according to the amount of yarn produced by different drawing cavities 33.

[0039] Specifically, the original basic function of the guide plate 32 is to divide the drawing crucible 31 into multiple independent drawing chambers 33 and guide the molten glass raw material into each chamber. The hollow heating structure and independent temperature control unit design represent a further optimization of this basic function: because the output of different drawing chambers 33 may differ (for example, some chambers need to produce more glass fibers, while others produce less), the flow rate and shaping requirements of the molten glass raw material in each chamber will also differ. The guide plate 32 can adjust its own temperature through the independent temperature control unit: for chambers with a larger output, the temperature can be appropriately increased to maintain the molten fluidity of the raw material and avoid poor drawing due to excessive cooling; for chambers with a smaller output, the temperature can be finely adjusted to match its production rhythm and ensure stable shaping of the raw material. This design can specifically adapt to the production needs of each drawing chamber 33, reducing problems such as uneven raw material fluidity and fluctuations in drawing quality caused by differences in output, further improving the precision of regional production and the overall quality of the glass fibers. Example

[0040] Based on Example 1, the following settings are also made:

[0041] See Figures 1-10 A first through hole is provided at the center of the side of the cover cylinder 5. A rod 7 is slidably inserted into the first through hole. One end of the rod 7 is connected to a scraper 8. The upper side of the scraper 8 is attached to the lower surface of the bottom wall of the wire drawing crucible 31, and the two sides of the scraper 8 can be attached to the inner surface of the side wall of the cover cylinder 5. The rod 7 is rotatably connected to the scraper 8. A strip rod 9 is fixedly connected to the end of the rod 7. The strip rod 9 is attached to the surface of the scraper 8, and the length of the strip rod 9 is greater than the width of the cover cylinder 5.

[0042] Furthermore, the other end of the insertion rod 7 is elastically connected to a connecting rod 11 via an elastic element 10. The connecting rod 11 has inserts 12 at both ends. A second strip-shaped hole 13 is opened on the side of the coating box 24, and the inserts 12 are inserted into the second strip-shaped hole 13. The elastic element 10 includes a circular plate 101, a spring 102, and a pressure ring 103. The circular plate 101 is fixedly connected to the end of the insertion rod 7. One end of the spring 102 is fixedly connected to the circular plate 101, and the other end of the spring 102 is fixedly connected to the pressure ring 103. The pressure ring 103 is fitted against the connecting rod 11. A negative pressure pipe 14 is provided on the lower side of the scraper 8. The negative pressure pipe 14 is a rectangular tube and is located on the lower side of the cover 5.

[0043] During normal use, the scraper 8 is attached to the inner wall of the cover cylinder 5 and will not obstruct the wire drawing and coating; the residual powder coating material in the cover cylinder 5 is recovered by opening the negative pressure pipe 14.

[0044] When installing the coating box 24 onto the cover 5, first insert the coating box 24 into the mounting position of the cover 5. Then, pull the connecting rod 11 to insert the insert 12 into the second strip-shaped hole 13, thus securing the coating box 24 firmly. It should be noted that the dimensions of the insert 12 and the second strip-shaped hole 13 are corresponding to prevent the coating material from spraying out from this location.

[0045] When it is necessary to clean the inner wall of the shroud 5 during the interval of wire drawing and powder coating, push the insert rod 7, which in turn pushes the scraper 8 to clean the side wall of the shroud 5, the bottom wall of the wire drawing crucible 31, and the surface of the coating box 24. At the same time, the insert plate 12 is also inserted into the inside of the coating box 24 to clean the inside of the coating box 24 and prevent blockage.

[0046] When it is necessary to disassemble the coating box 24, first pull the connecting rod 11 to pull the insert 12 out of the second strip hole 13. Then rotate the insert rod 7 so that the strip rod 9 can clean the surface of the scraper 8. Then, rotate the strip rod 9 to the lateral position to push the two opposing coating boxes 24 away from each other, so that the coating box 24 is removed from the mounting position on the cover 5, making it easy to remove the coating box 24.

[0047] Furthermore, the insert 12 is provided with a second through hole. When the insert 12 is inserted into the coating box 24, it can block part of the coating spray hole 25. The coating material can be sprayed out through the second through hole, thereby reducing the amount sprayed out.

[0048] Working principle of the invention:

[0049] First, the glass fiber raw material is heated and melted by the heating crucible 4 at the upper end of the frame 1. The molten raw material enters the drawing crucible 31 of the drawing mechanism 3. In the drawing crucible 31, the raw material is distributed to each independent drawing cavity 33 by the guide plate 32, and drawn into glass fiber filaments through the drawing holes 34 at the bottom of each drawing cavity 33. The glass fiber filaments enter the corresponding cover cylinder 5 downwards. At the same time, the conveying pump 21 of the coating mechanism 2 conveys the coating material through the conveying main pipe 22 to the branch pipes 23 set on both sides of the cover cylinder 5, and then enters the coating box 24. Finally, the coating material is sprayed onto the glass fiber filaments from both sides of the cover cylinder 5 through the coating spray holes 25 on the coating box 24, completing the glass fiber drawing and coating process.

[0050] In summary, this fiber drawing and coating device for glass fiber production divides the drawing crucible 31 into several drawing cavities 33 by the guide plate 32, achieving regional coating, reducing the amount of fiber produced and sprayed each time, effectively avoiding uneven coating or missed coating in the middle of the glass fiber, and ensuring coating uniformity. At the same time, the cover 5 can effectively prevent the sprayed material from spreading and avoid waste caused by the random diffusion of coating material.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drawing and coating device for the production of glass fibers, comprising a frame (1), characterized in that: The rack (1) upper end is provided with a heating crucible (4), the heating crucible (4) bottom is connected with a drawing mechanism (3), the drawing mechanism (3) bottom is provided with several cover cylinders (5) equidistantly, the cover cylinder (5) is provided with a plastic coating mechanism (2) on it;The drawing mechanism (3) includes a drawing crucible (31), the drawing crucible (31) is fixedly installed on the rack (1), the drawing crucible (31) is provided with several material guiding plates (32), the drawing crucible (31) is divided into several drawing cavities (33) by several material guiding plates (32), and the bottom of each drawing cavity (33) is provided with a drawing hole (34); The material guiding plate (32) is a hollow heating type structure, and an independent temperature control unit is arranged in it, which is used to adjust the temperature according to the wire yield of different drawing cavities (33); The plastic coating mechanism (2) includes a conveying pump (21), the conveying pump (21) is fixedly installed on the rack (1), the output end of the conveying pump (21) is fixedly connected with a conveying main pipe (22), and the conveying main pipe (22) is provided with several branch pipes (23); The end of the branch pipe (23) away from the conveying main pipe (22) is open, the open end of the branch pipe (23) is fixedly connected with a plastic coating box (24), the inside of the plastic coating box (24) is communicated with the branch pipe (23), and the end of the plastic coating box (24) in the cover cylinder (5) is provided with several plastic coating injection holes (25). The side center of the cover cylinder (5) is provided with a through hole, the plug rod (7) is slidingly inserted into the through hole, one end of the plug rod (7) is connected with the scraper (8), the upper side of the scraper (8) is attached to the bottom wall lower surface of the wire drawing crucible (31), and the two sides of the scraper (8) can be attached to the inner surface of the side wall of the cover cylinder (5); the plug rod (7) is rotatably connected to the scraper (8), the end of the plug rod (7) is fixedly connected with the strip-shaped rod (9), the strip-shaped rod (9) is attached to the surface of the scraper (8), and the length of the strip-shaped rod (9) is greater than the width of the cover cylinder (5); the other end of the plug rod (7) is elastically connected with the connecting rod (11) through the elastic element (10), both ends of the connecting rod (11) are provided with the plug piece (12), the side of the plastic coating box (24) is provided with the second strip-shaped hole (13), and the plug piece (12) is inserted into the second strip-shaped hole (13); the elastic element (10) comprises a circular plate (101), a spring (102) and a pressing ring (103); the circular plate (101) is fixedly connected to the end of the plug rod (7), one end of the spring (102) is fixedly connected to the circular plate (101), the other end of the spring (102) is fixedly connected to the pressing ring (103), and the pressing ring (103) is attached to the connecting rod (11); the lower side of the scraper (8) is provided with the negative pressure pipe (14), the negative pressure pipe (14) is a rectangular pipe body, and the negative pressure pipe (14) is located on the lower side of the cover cylinder (5); the plug piece (12) is provided with a second through hole, the plug piece (12) is inserted into the plastic coating box (24), blocks a part of the plastic coating injection hole (25), and the plastic coating material is sprayed out through the second through hole, so that the spraying amount is reduced.

2. The glass fiber production and processing wire drawing and plastic coating device of claim 1, wherein: The material guide plate (32) comprises an inverted V-shaped structure, the lower side of the material guide plate (32) is fixedly connected to the upper surface of the bottom wall of the wire drawing crucible (31), and the two sides of the material guide plate (32) are fixedly connected to the inner surfaces of the side walls of the wire drawing crucible (31).

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