Glass fiber drawing process and equipment

Abstract

The invention relates to a glass fiber drawing process and equipment. The process comprises the following steps: configuring cooling airflow for passing fibers; and keeping the spray coating in an atomized state, and mixing the spray coating with the cooling air flow. Compared with the prior art, the process provided by the invention has the advantages that the fiber yarns are cooled by the airflow, and the atomized coating is mixed with the airflow, so that the coating can be sprayed on the glass fibers under the action of the airflow, the efficiency of the whole wire drawing process can be improved, and meanwhile, the complexity of manual plastic coating is eliminated; and the phenomenon that the fibers are adhered after being discharged from the furnace is reduced.

Description

Technical Field

[0001] The present invention relates to glass fiber drawing technology, in particular to a glass fiber drawing process and equipment. Background Art

[0002] During the drawing process of glass fiber, after the molten mixed raw materials come out of the leak plate, they generally go through processes such as cooling, plastic coating, and then winding. During the plastic coating process, a specific plastic material (resin) will be evenly coated on the surface of the glass fiber. It can enhance some properties of the glass fiber, such as corrosion resistance, wear resistance, aging resistance, etc., and can also improve its bonding ability and compatibility with other materials. A common problem in current technology is that the cooling of the fiber filaments is generally by natural cooling, and when the cooling is not thorough enough, if the fiber filaments touch each other during the plastic coating process, it is easy to form stickiness, which affects the plastic coating process and causes some parts to be not evenly coated. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] In order to solve the technical problems reflected in the above background technology, the present invention provides the following technical solutions:

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

[0006] configuring a cooling air flow passing through the fiber filaments;

[0007] Keep the spray material in an atomized state and mix it with the cooling air flow.

[0008] As an optimal technical solution for the glass fiber drawing process, it also involves circulating the cooling airflow and maintaining the cooling treatment of the cooling airflow during the process.

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

[0010] A glass fiber drawing device is compatible with the above-mentioned process and comprises:

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

[0012] A pressurizing chamber and an air jet end are connected, wherein the air jet end is located in the main channel, and paint and air are supplied to the pressurizing chamber.

[0013] As an optimal technical solution for glass fiber drawing equipment, the air supply part includes an air intake pipe connected to the boost chamber, the other end of which is connected to the main channel, and an air guide element is arranged in the air intake pipe.

[0014] As an optimal technical solution for glass fiber drawing equipment, a filter portion is provided in the air intake pipe, and the paint is intercepted in the filter portion.

[0015] As an optimal technical solution for glass fiber drawing equipment, a heat exchanger is provided in the air intake pipe for passing the cooling liquid.

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

[0017] As an optimal technical solution for glass fiber drawing equipment, it also includes an air storage chamber fixedly arranged relative to the boost chamber, and at least two air leakage ports are provided in the air storage chamber, which are respectively connected to the two jet ends. A rotating nozzle is rotatably arranged in the air storage chamber, which is connected to the boost chamber, and the rotating nozzle seals the two air leakage ports in turn during the rotation process.

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

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

[0020] 1. Compared with the prior art, the wire drawing process provided by the present invention improves the efficiency of the entire wire drawing process by using the air flow to dissipate heat from the fiber filaments and by atomizing the coating and mixing it with the air flow, so that the coating can be sprayed onto the glass fiber through the action of the air flow, thereby eliminating the tedious manual coating and reducing the stickiness of the fiber filaments after they come out of 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 filaments, while also increasing the efficiency of plastic coating and reducing the sticking phenomenon caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0023] Figure 1 Schematic diagram of the arrangement of gas paths between some structures in the second embodiment of the present invention.

[0024] Figure 2 It is a partial structural perspective diagram of the second embodiment of the present invention.

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

[0026] Figure 4 For about Figure 2 Schematic diagram of the interior of the structure shown.

[0027] Figure 5 FIG. 2 is an application diagram of the second embodiment of the present invention.

[0028] Figure 6 For about Figure 5 Front view of .

[0029] Figure 7 for Figure 2 Schematic diagram of the central structure.

[0030] Figure 8 Schematic diagram of the operation of the rotary sprinkler according to the second embodiment of the present invention.

[0031] Reference numerals:

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

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" 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 various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0036] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[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 has the following technical interventions:

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

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

[0040] Specifically, in this process, as the molten fiber filaments emerge from the bushing and proceed to the next step, they undergo an air cooling process. At the same time, the liquid plastic is atomized and diffused in the airflow, and then blown onto the fiber filaments through the airflow. This process simultaneously completes the air cooling of the glass fiber filaments, and at the same time, the liquid plastic is sprayed on the surface of the fiber filaments, thereby forming adhesion on the surface, completing the plastic coating process at the same time.

[0041] During the entire process, the plastic coating of the plastic-coated fiber filaments can be dried while moving to the next process. In order to ensure the atomization effect of the plastic during the plastic coating process, the water content in the plastic can be appropriately increased to ensure the liquid effect, while ensuring that the fiber filaments travel long enough to the next process to ensure complete drying of the coating. Compared with the existing process, this process completes the plastic coating with the help of air cooling, thus eliminating the need for manual operation and reducing the contact and sticking between fiber filaments caused by touch. In addition, the spraying effect of the plastic formed by air cooling makes the thickness of the plastic attached to the surface of the fiber filament more uniform, thereby improving the quality of the plastic coating.

[0042] Furthermore, in this process, a step of recovering the cooling airflow passing through the fiber filaments can be added, so that when the mist plastic contained in the cooling airflow is not fully used up, its diffusion into the surrounding environment can be reduced, thereby reducing the pollution caused by the process;

[0043] In order to further optimize the airflow recycling process, the recycled airflow can be used as a cooling airflow again to form a circulating flow effect, so as to reduce the phenomenon of airflow spreading to the surroundings, thereby reducing pollution to the surroundings; the step of filtering plastics can also be added to the airflow circulation path, thereby further collecting unused plastics.

[0044] In order to fully apply the above-mentioned process to the actual drawing process, the 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 the installation process, the main channel 1 is arranged below the bushing so that the drawn glass fiber yarn passes through the main channel 1 and then enters the subsequent processing steps. The structure of the main channel 1 is as follows Figure 2 As shown, the internal structure has evenly distributed support parts 2, which are rod-shaped structures that can separate the fibers to reduce the adhesion between the molten fiber filaments. The main channel 1 has two opposite side inner walls provided with air jet ends 3, which are nozzle structures with liquid spraying ports arranged in a horizontal array.

[0045] In addition to the above, the present invention also includes a recovery bin 4, which is trumpet-shaped and constructed on a side wall of the main channel 1. The recovery bin 4 is connected to the jet end 3 through an air intake pipe. The air intake pipe is connected in parallel with a boost chamber 5 and a compressor. Specifically, the boost chamber 5 is provided by a cylinder-shaped barrel structure, which is fixed on one side of the main channel 1. The boost chamber 5 is provided 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, and the air inlet of the compressor is connected to the recovery bin 4. During the operation of the compressor, the air at the recovery bin 4 is pressed into the boost chamber. The outlet end of the boost chamber has a small diameter and its exhaust speed is limited, so that a high-pressure environment is formed in the boost chamber. The liquid resin to be coated is mixed with the air in the high-pressure environment, so that it can be ejected from the jet end 3 together with the air by virtue of the high-pressure effect to cool the glass fiber yarn and at the same time make the liquid resin form a mist, thereby adhering to the glass fiber yarn. Figure 5 and Figure 6 Shown is a schematic diagram of the fiber passing through the main channel 1, as shown in FIG. Figure 5 and Figure 6 As shown in the figure, the fiber filaments move from top to bottom, and the jet end 3 is located above the recovery bin 4. After the plastic-containing airflow acts on the fiber filaments, the unused mist resin will move downward under the action of gravity, and continue to be sucked into the recovery bin 4 to enter the airflow circulation, which can reduce the excessive diffusion of plastic-containing air in the surrounding area, thereby reducing pollution to the surrounding area.

[0046] Further, refer to Figure 1 , as shown in the pipeline structure layout, a filter unit can be added to the air intake pipeline to collect the resin in the circulating air flow. The filter unit can adopt a filter mesh and other structures to filter out the resin that has solidified in the air to ensure that the air pressed into the boost chamber 5 has sufficient purity.

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

[0048] Further, refer to Figure 2 、 Figure 7 and Figure 8 Regarding the structure of the outlet of the boost chamber 5, specifically, the outlet of the boost chamber 5 is a rotating nozzle 6, which is connected to the inside of the boost chamber 5 and rotates with the boost chamber. The shape of the rotating nozzle 6 is as follows: Figure 7 As shown, a semicircular shielding portion 7 is constructed thereon, and 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 an air vent 9. Specifically, the rotating nozzle 6 and the air storage chamber 8 rotate in coordination, and the shielding portion 7 can always block one of the air vents 9. When the boost chamber 5 is exhausted, high-pressure air is ejected from the rotating nozzle 6 and reaches the air storage chamber 8. The rotating nozzle 6 rotates during this process, so that the shielding portion 7 blocks the two air vents 9 in turn, so that the two air vents 9 are opened in turn, that is, the air containing resin mist enters the two jet ends 3 in turn, so that the two jet ends 3 will eject in turn in turn, so that the jet end 3 currently ejecting will not be blocked by the airflow with a flow trend ejected from the opposite jet end 3, so that the airflow ejected in two directions can smoothly spread to the inner wall of the opposite main channel 1, so that the air containing resin mist is sprayed onto the fiber filaments from two directions in turn to ensure that the resin coating on the surface of the fiber filaments can be evenly adhered.

[0049] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue 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 the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A glass fiber drawing process, characterized in that: At least the following steps are involved: configuring a cooling air flow passing through the fiber filaments; Keep the spray material in an atomized state and mix it with the cooling air flow.

2. The glass fiber drawing process according to claim 1, characterized in that: The invention also relates to a circulation process for the cooling air flow, and maintains the cooling process for the cooling air flow during the circulation process.

3. The glass fiber drawing process according to claim 2, characterized in that: The cooling air flow is also filtered during the circulation process.

4. A glass fiber drawing device, characterized in that: A glass fiber drawing process adapted to any one of claims 1 to 3, comprising: a main channel through which the fiber filaments pass; A pressurizing chamber and an air jet end are connected, wherein the air jet end is located in the main channel, and paint and air are supplied to the pressurizing chamber.

5. The glass fiber drawing equipment according to claim 4, characterized in that: The air supply portion includes an air intake pipeline connected to the supercharging chamber, the other end of which is connected to the main channel, and an air guide element is arranged in the air intake pipeline.

6. The glass fiber drawing equipment according to claim 5, characterized in that: A filter portion is provided in the air intake pipe, and the paint is intercepted in the filter portion.

7. The glass fiber drawing equipment according to claim 5, characterized in that: A heat exchanger is provided in the air intake line for the coolant to pass through.

8. The glass fiber drawing equipment according to claim 4, characterized in that: There are at least two jet ends distributed on both sides of the main channel, and air flows out from the two jet ends in sequence.

9. The glass fiber drawing equipment according to claim 8, characterized in that: It also includes an air storage chamber fixedly arranged relative to the boost chamber, and at least two air leakage ports are arranged in the air storage chamber, 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 boost chamber. The rotating nozzle sequentially closes the two air leakage ports during the rotation process.

10. The glass fiber drawing equipment according to claim 4, characterized in that: A support portion is provided in the main channel, and a plurality of fiber filaments are separated by the support portion.

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