A glass fiber drawing process and apparatus

Abstract

The present application relates to a kind of glass fiber drawing process and equipment, the step involved in process has: the cooling airflow is configured to the fiber yarn passing;Spraying material is kept in atomized state, and is mixed with the cooling airflow.The process of the present application compared with prior art, by the heat dissipation of airflow to fiber yarn, and by the atomization of coating and airflow mixing, so as to be able to be sprayed to glass fiber by the action of airflow, so as to improve the efficiency of the whole drawing process, while eliminating the cumbersome of manual coating, and reducing the sticking phenomenon after fiber yarn out of furnace.

Description

Technical Field

[0001] This invention relates to glass fiber drawing technology, and more particularly to a glass fiber drawing process and equipment. Background Technology

[0002] In the glass fiber drawing process, after the molten mixture emerges from the spinneret, it typically undergoes cooling, coating, and winding. During coating, a specific plastic material (resin) is evenly applied to the surface of the glass fiber. This enhances some properties of the glass fiber, such as corrosion resistance, wear resistance, and aging resistance, while also improving its bonding and compatibility with other materials. A common problem in current technology is that the fiber filaments are usually cooled naturally. If the cooling is incomplete, and the filaments come into contact with each other during the coating process, they can easily stick together, affecting the coating process and resulting in some areas not being evenly coated. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] To address the technical problems reflected in the background section, the present invention provides the following technical solution:

[0005] A glass fiber drawing process, comprising at least the following steps:

[0006] Configure cooling airflow through the fibers;

[0007] Keep the sprayed paint in an atomized state and mix it with the cooling airflow.

[0008] As a preferred technical solution for glass fiber drawing process, it also involves the circulation of the cooling airflow and maintaining the cooling of the cooling airflow during the process.

[0009] As a preferred technical solution for glass fiber drawing process, the cooling airflow is also filtered during the circulation process.

[0010] A glass fiber drawing device, adapted to the process described above, and comprising:

[0011] The main channel, through which the fiber filaments pass;

[0012] The pressure chamber and the jet nozzle are connected, with the jet nozzle located in the main channel, and the coating and air are supplied to the pressure chamber.

[0013] As a preferred technical solution for glass fiber drawing equipment, the air supply unit includes an air inlet pipe that communicates with the pressurization chamber, and its other end is connected to the main channel. An air guide element is configured in the air inlet pipe.

[0014] As a preferred technical solution for glass fiber drawing equipment, a filter section is provided in the air inlet pipe, and the coating is intercepted in the filter section.

[0015] As a preferred technical solution for glass fiber drawing equipment, the air inlet pipe is equipped with a heat exchanger for the passage of coolant.

[0016] As a preferred technical solution for glass fiber drawing equipment, there are at least two jet ends, which are distributed on both sides of the main channel, and the airflow flows out sequentially from the two jet ends.

[0017] As a preferred technical solution for glass fiber drawing equipment, it further includes an air storage chamber fixedly arranged relative to the pressurization chamber. The air storage chamber is provided with at least two vents, which are respectively connected to the two jet ends. A rotating nozzle is rotatably arranged in the air storage chamber and is connected to the pressurization chamber. During the rotation process, the rotating nozzle sequentially closes the two vents.

[0018] As a preferred technical solution for glass fiber drawing equipment, a support part is provided in the main channel, and multiple fiber filaments are separated by the support part.

[0019] The present invention has the following beneficial effects:

[0020] 1. Compared with the prior art, the fiber drawing process provided by the present invention dissipates heat from the fiber by airflow and mixes the coating with the airflow after atomization, so that it can be sprayed onto the glass fiber by the action of airflow, thereby improving the efficiency of the entire fiber drawing process, eliminating the tedious manual coating, and reducing the phenomenon of fiber sticking after exiting the furnace.

[0021] 2. The wire drawing equipment provided by the present invention combines the wire drawing process provided by the present invention in principle. Compared with the existing equipment, it increases the cooling efficiency of the fiber and the efficiency of coating, and reduces the sticking phenomenon caused by human factors. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a schematic diagram of the air passage arrangement between some structures in the second embodiment of the present invention.

[0024] Figure 2 This is a three-dimensional schematic diagram of a portion of the structure in the second embodiment of the present invention.

[0025] Figure 3 For about Figure 2 Another perspective view.

[0026] Figure 4 For about Figure 2 A schematic diagram of the internal structure shown.

[0027] Figure 5 This is a schematic diagram illustrating the application of the second embodiment of the present invention.

[0028] Figure 6 For about Figure 5 The front view.

[0029] Figure 7 for Figure 2 A three-dimensional schematic diagram of the middle section.

[0030] Figure 8 This is a schematic diagram of the operation of the rotating nozzle described in the second embodiment of the present invention.

[0031] Figure label:

[0032] 1. Main channel; 2. Support section; 3. Jet end; 4. Recovery chamber; 5. Pressurization chamber; 501. Air inlet; 502. Liquid inlet; 6. Rotating nozzle; 7. Shielding section; 8. Air storage chamber; 9. Air vent. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0037] The first embodiment of the present invention provides a glass fiber drawing process. Compared with the drawing process in the prior art, the present invention makes technical interventions in the following aspects:

[0038] After the glass fiber filaments come out of the baffle, an air-cooling process is added to the filaments;

[0039] An additional step of atomizing the plastic to be coated is added, and the atomized plastic is mixed with the airflow for air cooling, so that the atomized plastic is blown onto the fiber filaments by the airflow.

[0040] Specifically, in this process, as the molten fiber filaments emerge from the spinneret and proceed to the next step, they undergo an air-cooling process. Simultaneously, liquid plastic is atomized and diffused in the airflow, which then blows onto the fiber filaments. This process simultaneously completes the air-cooling of the glass fiber filaments, while the liquid plastic is sprayed onto the surface of the fiber filaments, thus forming an adhesion on the surface and completing the coating process in one step.

[0041] In this process, the plastic coating dries as the coated fibers move to the next step. To ensure the atomization effect of the plastic during coating, a certain amount of water can be added to maintain a liquid state. This also ensures that the travel time of the fibers to the next step allows for complete drying of the coating. Compared to existing processes, this process completes the coating simultaneously with air cooling, eliminating the need for manual operation and reducing the sticking of fibers due to contact. Furthermore, the air-cooled spraying effect results in a more uniform thickness of the plastic coating on the fiber surface, thus improving the coating quality.

[0042] Furthermore, in this process, a step for recovering the cooling airflow that passes through the fibers can be added, so that when the atomized plastic contained in the cooling airflow is not fully utilized, its diffusion into the surrounding environment can be reduced, thereby reducing the pollution caused by the process.

[0043] To further optimize the airflow recovery process, the recovered airflow can be used again as cooling airflow, creating a circulating flow effect to reduce the phenomenon of airflow spreading to the surroundings and thus reduce pollution to the surroundings. A step of filtering plastic can also be added to the airflow circulation path, thereby further collecting unused plastic.

[0044] To fully apply the above-described process to actual fiber drawing, a second embodiment of the present invention provides a glass fiber drawing device, such as... Figure 1-4 As shown, it includes a main channel 1. During installation, the main channel 1 is positioned below the stencil, allowing the pulled-out glass fiber filaments to pass through the main channel 1 before entering subsequent processing steps. The structure of the main channel 1 is as follows: Figure 2 As shown, the internal structure has uniformly distributed support parts 2, which are rod-shaped structures that can separate the fibers to reduce the adhesion between the molten fibers. The two opposite inner walls inside the main channel 1 are equipped with jet nozzles 3, which are nozzle structures with horizontally arrayed spray nozzles.

[0045] In addition to the above, the present invention also includes a recovery chamber 4, which is funnel-shaped and constructed on one side wall of the main channel 1. The recovery chamber 4 is connected to the jet end 3 via an air intake pipe. A pressurization chamber 5 and a compressor are connected in parallel on the air intake pipe. Specifically, the pressurization chamber 5 is provided by a cylinder-shaped cylindrical structure, which is fixed to one side of the main channel 1. The pressurization chamber 5 is equipped with an air inlet 501 and a liquid inlet 502. The liquid inlet 502 is used to add liquid resin. The air inlet 501 is connected to the air outlet of the compressor. The air inlet of the compressor is connected to the recovery chamber 4. During the operation of the compressor, the air at the recovery chamber 4 is forced into the pressurization chamber. The outlet diameter of the pressurization chamber is small, and its exhaust speed is limited, so that a high-pressure environment is formed in the pressurization chamber. The liquid resin to be coated mixes with the air in the high-pressure environment, so that it can be sprayed out from the jet end 3 together with the air with the help of the high pressure effect to air-cool the glass fiber filaments. At the same time, the liquid resin forms a mist, which then adheres to the glass fiber filaments. Figure 5 and Figure 6 The diagram shown illustrates the fiber filaments passing through main channel 1. Figure 5 and Figure 6 As shown, the fiber filaments move from top to bottom, and the jet end 3 is located above the recovery chamber 4. After the plastic-containing airflow acts on the fiber filaments, the unused atomized resin will move downward under the action of gravity and continue to be sucked into the recovery chamber 4 to enter the airflow circulation. This can reduce the excessive diffusion of plastic-containing air around, thereby reducing pollution to the surrounding environment.

[0046] Furthermore, refer to Figure 1 The pipeline structure shown can be further modified by adding a filter section in the intake pipeline to collect the resin in the circulating airflow. The filter section can be a filter screen or similar structure to filter out the resin that has solidified in the air, so as to ensure that the air pressed into the pressurization chamber 5 has sufficient purity.

[0047] Furthermore, in order to ensure the low-temperature effect of the circulating airflow, a heat exchanger is also installed in the air intake pipe, along with circulating coolant passing through the heat exchanger, so as to cool the air passing through the air intake pipe and ensure that it can have a sufficient cooling effect on the fiber surface.

[0048] Furthermore, refer to Figure 2 , Figure 7 and Figure 8 Regarding the structure of the outlet end of the pressurization chamber 5, specifically, the outlet of the pressurization chamber 5 has a rotating nozzle 6. The rotating nozzle 6 is connected to the inside of the pressurization chamber 5 and rotates in conjunction with the pressurization chamber. The shape of the rotating nozzle 6 is as follows: Figure 7 As shown, a semi-circular shielding part 7 is constructed on it. The two jet ends 3 are connected to the air storage chamber 8 through a branch. The connection between the air storage chamber 8 and the branch is defined as the vent 9. Specifically, the rotating nozzle 6 rotates and cooperates with the air storage chamber 8. The shielding part 7 can always block one of the vent 9. When the pressurization chamber 5 is venting, high-pressure air is ejected from the rotating nozzle 6 and reaches the air storage chamber 8. The rotating nozzle 6 will rotate during this process, so that the shielding part 7 will block the two vent 9 in turn, so that the two vent 9 will open in turn. That is, the air containing resin mist will enter the two jet ends 3 in turn. This makes the two jet ends 3 spray in turn, so that the jet end 3 that is currently spraying will not be blocked by the airflow with the flow tendency ejected from the opposite jet end 3. This allows the airflow ejected from both directions to spread smoothly to the inner wall of the main channel 1 on the opposite side. Thus, the air containing resin mist is sprayed onto the fiber in turn from both directions to ensure that the resin coating on the surface of the fiber can be evenly adhered.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A glass fiber drawing device, characterized in that: Includes a main channel, through which fiber filaments pass, and also includes; The pressurization chamber and the jet nozzle are connected. The jet nozzle is located in the main channel. The paint and air are supplied to the pressurization chamber. There are at least two jet nozzles, which are distributed on both sides of the main channel. The airflow flows out of the two jet nozzles in sequence. An air storage chamber is fixedly arranged relative to the pressurization chamber. The air storage chamber has at least two vents, which are respectively connected to two jet ends. A rotating nozzle is rotatably arranged in the air storage chamber and is connected to the pressurization chamber. During rotation, the rotating nozzle sequentially seals the two vents.

2. The glass fiber drawing equipment according to claim 1, characterized in that: It also includes an intake pipe connected to the pressurization chamber, the other end of which is connected to the main channel, and an air guide element is provided in the intake pipe.

3. The glass fiber drawing equipment according to claim 2, characterized in that: The air intake pipe is equipped with a filter section, and the coating is intercepted in the filter section.

4. The glass fiber drawing equipment according to claim 2, characterized in that: A heat exchanger is installed in the air intake pipe for the passage of coolant.

5. The glass fiber drawing equipment according to claim 1, characterized in that: The main channel is provided with a support section, and multiple fiber filaments are separated by the support section.

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