A glass fiber antistatic agent external spraying equipment

Abstract

The present invention discloses an external spraying device for an antistatic agent for glass fiber, comprising: a container assembly, an atomizing nozzle assembly, a guide assembly and a traction device, wherein the guide assembly has a guide block, the guide block is arranged on the other side of the glass fiber bundle relative to the atomizing nozzle assembly, and an oil mist reflecting surface is arranged on the side of the guide block facing the atomizing nozzle assembly. The present invention utilizes the antistatic agent oil mist of the atomizing nozzle assembly to spray the front of the glass fiber bundle, and simultaneously utilizes the antistatic agent oil mist reflected by the oil mist reflecting surface to spray the back of the glass fiber bundle. This method improves the utilization rate of the antistatic agent on the glass fiber bundle, thereby improving the adsorption rate of the antistatic agent. The spraying rate and retention rate of the glass fiber bundle can even be close to 100%, thereby ensuring that the surface antistatic agent of the glass fiber bundle will not be greatly separated during subsequent processing and use, thereby improving product quality.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber production equipment, and in particular to an external spraying device for an antistatic agent for glass fiber. Background Art

[0002] Glass fiber is an inorganic non-metallic material with excellent performance. It is made of pyrophyllite, quartz yarn, limestone, dolomite, colemanite, and magnesia stone as raw materials through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than 20 microns, which is equivalent to 1 / 20~1 / 5 of a hair. Each bundle of fiber raw filaments is composed of hundreds or even thousands of single filaments. It has the advantages of good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. Glass fiber is usually used as a reinforcing material, electrical insulation material, and thermal insulation material in composite materials. It is widely used in petrochemical, electronic power, transportation, aerospace, national defense and military industries, and plays an increasingly important role in the national economy.

[0003] During the processing or use of glass fiber, friction will generate static electricity, and the high insulation and low water absorption of glass fiber itself make static electricity difficult to eliminate, so static electricity is easily accumulated. In order to improve the smoothness of the downstream processing and use of glass fiber, reduce the phenomenon of glass fiber fuzzing, piling up, and uneven dispersion due to static electricity, and at the same time to avoid customer product quality fluctuations due to static adsorption during the use of glass fiber, antistatic agent treatment is usually carried out during glass fiber processing, that is, oiling. Currently, there are two main types of oiling: immersion and coating. The immersion method is to immerse the glass fiber in the antistatic agent. This method cannot make the antistatic agent 100% attached to the glass fiber bundle. The retention rate of the antistatic agent on the glass fiber is only 70~80%, and the antistatic agent has relatively weak adhesion and is easy to fall off during the later processing. The coating method is that the antistatic agent is evenly coated on the surface of the glass fiber from the outlet of the oil coating device. The disadvantage is that it is impossible to effectively control the coating amount of the antistatic agent according to the respective characteristics of different products produced. It is easy to have uneven coating of the antistatic agent and accumulation of the antistatic agent, which will affect the quality of the downstream glass fiber. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the existing glass fiber oiling method, the present invention provides a glass fiber antistatic agent external spraying device.

[0005] The technical solution adopted by the present invention is as follows: an external spraying device for antistatic agent of glass fiber, comprising: a container assembly for storing antistatic agent; an atomizing nozzle assembly connected to the container assembly, aimed at the glass fiber bundle, and used for spraying antistatic agent; a guide assembly, having a guide block, the guide block is arranged on the other side of the glass fiber bundle relative to the atomizing nozzle assembly, and the side of the guide block facing the atomizing nozzle assembly is provided with an oil mist reflecting surface; a traction device is used to drive the glass fiber bundle to move axially.

[0006] Preferably, the container assembly includes an upper liquid tank and a lower liquid tank, the upper liquid tank is at a high position relative to the atomizing nozzle assembly, and uses gravity to supply liquid to the atomizing nozzle assembly, the lower liquid tank uses a driving pump to supply liquid to the upper liquid tank, and the lower liquid tank is connected to an external liquid replenishment pump.

[0007] Preferably, the upper liquid tank is equipped with a liquid level sensor, and the liquid level sensor serves as a signal source of the driving pump and is used to control the liquid level of the antistatic agent in the upper liquid tank.

[0008] Preferably, the guide block has a reflection groove which is consistent with the moving direction of the glass fiber bundle, and the notch of the reflection groove faces the atomizing nozzle assembly to form the oil mist reflection surface.

[0009] Preferably, inclined connecting surfaces are provided between the inner walls on both sides of the reflecting groove and the end faces of the guide blocks.

[0010] Preferably, the guide block is arranged directly below the glass fiber bundle and is equipped with a slider, a guide rail and a driving cylinder. The guide block is fixed to the slider and can be lifted and lowered along the guide rail along with the driving cylinder.

[0011] Preferably, limit plates are respectively arranged on the front and rear sides of the guide block, and ceramic through holes are opened on the limit plates for the glass fiber bundle to pass through.

[0012] Preferably, the atomizing nozzle assembly adopts a pneumatic nozzle, and the pneumatic nozzle is equipped with a monitoring execution assembly for controlling the spraying flow and pressure of the pneumatic nozzle; the monitoring execution assembly includes a flow regulating valve, a flow detection sensor and a pressure regulating valve, the container assembly, the flow regulating valve, and the flow detection sensor are connected to the liquid inlet of the pneumatic nozzle through a liquid supply pipe, and the external air source and the pressure regulating valve are connected to the air inlet of the pneumatic nozzle through an air pipe.

[0013] Preferably, it further comprises an outer box body, on which a plurality of groups of the atomizing nozzle assemblies and the guide assemblies are arranged from top to bottom in one-to-one correspondence.

[0014] Preferably, a liquid collecting box is installed on the outer box body, the upper part of the liquid collecting box is open, and it is arranged below the guide assembly located at the lowest position among the multiple groups of guide assemblies, and is connected with the container assembly through an oil return groove or an oil return hole.

[0015] The present invention has the following beneficial effects: the present invention utilizes the antistatic agent oil mist of the atomizing nozzle assembly to spray the front side of the glass fiber bundle, and the excess antistatic agent oil mist is rebounded by the oil mist reflecting surface and then sprayed for the second time on the back side of the glass fiber bundle, thereby achieving 360° circumferential spraying of the glass fiber bundle; compared with the traditional immersion method, the adsorption rate and utilization rate of the antistatic agent on the glass fiber are improved, and the spraying rate and retention rate of the glass fiber bundle can even be close to 100%, thereby ensuring that the antistatic agent on the surface of the glass fiber bundle will not be significantly detached during subsequent processing and use, thereby improving product quality; compared with the traditional coating method, a single nozzle is used to achieve circumferential full-range spraying, thereby avoiding the phenomena of uneven antistatic agent coating, antistatic agent accumulation, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure from the rear angle of an embodiment of the present invention (the rear cover is omitted).

[0018] Figure 3 Schematic diagram of the installation of the atomizing nozzle assembly and the guide assembly in the embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the guide assembly in an embodiment of the present invention.

[0020] Container assembly 1, upper liquid tank 101, lower liquid tank 102; atomizing nozzle assembly 2, pneumatic nozzle 201, connecting plate 202; guide assembly 3, guide block 301, reflecting groove 302, inclined connecting surface 303, slider 304, guide rail 305, driving cylinder 306, limit plate 307, ceramic perforation 308; monitoring actuator assembly 4, flow regulating valve 401, flow detection sensor 402, pressure regulating valve 403; outer box body 5; liquid collecting box 6. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments and drawings.

[0022] In the embodiment, Figures 1 to 4As shown, a glass fiber antistatic agent external spraying device includes: a container assembly 1 for storing antistatic agent; an atomizing nozzle assembly 2, which is connected to the container assembly 1 and is aimed at the glass fiber bundle for spraying antistatic agent; a guide assembly 3, which has a guide block 301, the guide block 301 is arranged on the other side of the glass fiber bundle relative to the atomizing nozzle assembly 2, and the side of the guide block 301 facing the atomizing nozzle assembly 2 is provided with an oil mist reflecting surface; a traction device, which is used to drive the glass fiber bundle to move axially, and is usually a winding machine. In this embodiment, the antistatic agent oil mist of the atomizing nozzle assembly 2 is used to spray the front of the glass fiber bundle, and the antistatic agent oil mist reflected by the oil mist reflecting surface is used to spray the back of the glass fiber bundle for a second time. Compared with the traditional immersion method, the adsorption rate and utilization rate of the antistatic agent on the glass fiber are improved, and the spraying rate and retention rate of the glass fiber bundle can even be close to 100%, thereby ensuring that the antistatic agent on the surface of the glass fiber bundle will not be significantly detached during subsequent processing and use, thereby improving product quality; compared with the traditional coating method, a single nozzle is used to achieve spraying of the glass fiber bundle in both the upper and lower directions and within a range of approximately 360°, avoiding uneven coating of the antistatic agent and accumulation of the antistatic agent.

[0023] In the embodiment, Figure 1 , Figure 2 As shown, it includes an outer box 5, and multiple groups of corresponding atomizing nozzle assemblies 2 and guide assemblies 3 are arranged on the panel of the outer box 5 from top to bottom. In this embodiment, multiple groups of spraying mechanisms are arranged on the outer box 5, which can complete the oiling process of multiple groups of glass fiber bundles at the same time, thereby improving the processing efficiency. The vertical arrangement can make full use of the workshop space and is also convenient for personnel to operate.

[0024] In the embodiment, Figure 1 As shown, a liquid collecting box 6 is installed on the outer box body 5, and the upper part of the liquid collecting box 6 is open, and is arranged below the guide assembly 3 located at the lowest position among the multiple groups of the guide assemblies 3, and is connected to the container assembly 1 through the oil return groove or the oil return hole. The liquid collecting box 6 is used to collect the antistatic agent that is not sprayed on the glass fiber bundle, and return it to the lower liquid tank 102 of the container assembly 1, so as to realize the recycling of the antistatic agent and reduce waste.

[0025] In the embodiment, Figure 2As shown, the container assembly 1 includes an upper liquid tank 101 and a lower liquid tank 102. The upper liquid tank 101 is at a high position relative to the atomizing nozzle assembly 2, and uses gravity to supply liquid to the atomizing nozzle assembly 2. The lower liquid tank 102 uses a driving pump to supply liquid to the upper liquid tank 101, and the lower liquid tank 102 is connected to an external liquid replenishing pump. The upper liquid tank 101 is equipped with a liquid level sensor, which serves as a signal source for the driving pump and is used to control the liquid level of the antistatic agent in the upper liquid tank 101. This embodiment adopts a double liquid tank form, and the upper liquid tank 101 and the lower liquid tank 102 are respectively arranged at the upper and lower ends of the outer box body 5. The stability of the liquid level in the upper liquid tank 101 is ensured by the lower liquid tank 102, so as to realize the stable liquid supply of the upper liquid tank 101 to the atomizing nozzle assembly 2. Among them, the liquid level sensor and the driving pump are automatically controlled by the PLC main control unit.

[0026] In the embodiment, Figure 3 , Figure 4 As shown, the guide block 301 has a reflection groove 302 that is consistent with the moving direction of the glass fiber bundle, and the notch of the reflection groove 302 faces the atomizing nozzle assembly 2 to form an oil mist reflection surface. In the embodiment, the reflection groove 302 adopts a rectangular groove structure, and the rectangular groove is arranged corresponding to the atomizing nozzle assembly 2, and the bottom of the groove and the two sides form the oil mist reflection surface. After the atomizing nozzle assembly 2 sprays the glass fiber bundle from the upper side, the excess antistatic agent rebounds through the rectangular groove and then sprays the glass fiber bundle from the bottom for the second time, thereby achieving 360° full-angle spraying of the glass fiber bundle in the circumferential direction. In addition, the reflection groove 302 can also adopt a circular groove or other curved grooves to achieve effective reflection of the antistatic agent oil mist.

[0027] In the embodiment, Figure 3 , Figure 4 As shown, an inclined connection surface 303 is provided between the inner walls on both sides of the reflective groove 302 and the end surface of the guide block 301. The inclined connection surface 303 can make the excess antistatic agent splashed on the end surface of the guide block 301 or other positions flow back to the reflective groove to avoid waste.

[0028] In the embodiment, Figure 4 As shown, the guide block 301 is arranged directly below the glass fiber bundle and is equipped with a slider 304, a guide rail 305 and a driving cylinder 306. The guide block 301 is fixed to the slider 304 and is lifted and lowered along the guide rail 305 along with the driving cylinder 306. The guide block 301 adopts a liftable structure to achieve the separation or insertion of the glass fiber bundle in the reflection groove 302, ensuring that when the glass fiber bundle does not need to be sprayed, the guide block 301 can quickly move down to maintain a sufficient distance from the glass fiber bundle.

[0029] In the embodiment, Figure 3As shown, the front and rear sides of the guide block 301 are respectively provided with limit plates 307, and the limit plates 307 are provided with ceramic through holes 308 for the glass fiber bundle to pass through. The ceramic through holes 308 can guide the glass fiber bundle to pass through, thereby ensuring that the glass fiber bundle can be sprayed at the correct position.

[0030] In the embodiment, Figure 2 As shown, the atomizing nozzle assembly 2 adopts a pneumatic nozzle 201, and the pneumatic nozzle 201 is equipped with a monitoring and executing assembly 4, which is used to control the spraying flow and pressure of the pneumatic nozzle 201; the monitoring and executing assembly 4 includes a flow regulating valve 401, a flow detection sensor 402 and a pressure regulating valve 403, and the container assembly 1, the flow regulating valve 401, the flow detection sensor 402 are connected to the liquid inlet of the pneumatic nozzle 201 through a liquid supply pipe, and the external air source and the pressure regulating valve 403 are connected to the air inlet of the pneumatic nozzle 201 through an air pipe. The flow regulating valve 401, the flow detection sensor 402 and the pressure regulating valve 403 of this embodiment are all connected to the PLC main control unit for communication, which is convenient for the operator to observe and control in real time. The structure of this embodiment can accurately control the spraying parameters of the atomizing nozzle assembly 2, and the corresponding process parameters can be set according to the parameters of the glass fiber bundle, so as to ensure the spraying quality.

[0031] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A glass fiber antistatic agent external spraying equipment, characterized in that: include: A container assembly (1) for storing an antistatic agent; an atomizing nozzle assembly (2), connected to the container assembly (1), aimed at the glass fiber bundle, and used for spraying an antistatic agent; A guide assembly (3) comprising a guide block (301), the guide block (301) being arranged on the other side of the glass fiber bundle relative to the atomizing nozzle assembly (2), and an oil mist reflecting surface being arranged on a side of the guide block (301) facing the atomizing nozzle assembly (2); The traction device is used to drive the glass fiber bundle to move axially.

2. The glass fiber antistatic agent external spraying equipment according to claim 1 is characterized in that: The container assembly (1) comprises an upper liquid tank (101) and a lower liquid tank (102); the upper liquid tank (101) is located at a higher position relative to the atomizing nozzle assembly (2) and supplies liquid to the atomizing nozzle assembly (2) by gravity; the lower liquid tank (102) supplies liquid to the upper liquid tank (101) by a driving pump; and the lower liquid tank (102) is connected to an external liquid replenishing pump.

3. The glass fiber antistatic agent external spraying equipment according to claim 2 is characterized in that: The upper liquid tank (101) is equipped with a liquid level sensor, which serves as a signal source for the driving pump and is used to control the liquid level of the antistatic agent in the upper liquid tank (101).

4. The glass fiber antistatic agent external spraying equipment according to claim 1 is characterized in that: The guide block (301) has a reflection groove (302) which is consistent with the moving direction of the glass fiber bundle, and the notch of the reflection groove (302) faces the atomizing nozzle assembly (2), forming the oil mist reflection surface.

5. The glass fiber antistatic agent external spraying equipment according to claim 4 is characterized in that: An inclined connecting surface (303) is provided between the inner walls on both sides of the reflecting groove (302) and the end surface of the guide block (301).

6. The glass fiber antistatic agent external spraying equipment according to claim 1, characterized in that: The guide block (301) is arranged directly below the glass fiber bundle and is provided with a slider (304), a guide rail (305) and a driving cylinder (306); the guide block (301) is fixed to the slider (304) and can be lifted and lowered along the guide rail (305) along with the driving cylinder (306).

7. The glass fiber antistatic agent external spraying equipment according to claim 1 is characterized in that: Limiting plates (307) are respectively arranged on the front and rear sides of the guide block (301), and the limiting plates (307) are provided with ceramic through holes (308) for the glass fiber bundle to pass through.

8. The glass fiber antistatic agent external spraying equipment according to claim 1, characterized in that: The atomizing nozzle assembly (2) adopts a pneumatic nozzle (201), and the pneumatic nozzle (201) is equipped with a monitoring and executing assembly (4) for controlling the spraying flow rate and pressure of the pneumatic nozzle (201); the monitoring and executing assembly (4) comprises a flow regulating valve (401), a flow detection sensor (402) and a pressure regulating valve (403); the container assembly (1), the flow regulating valve (401) and the flow detection sensor (402) are connected to the liquid inlet of the pneumatic nozzle (201) through a liquid supply pipe, and an external air source and the pressure regulating valve (403) are connected to the air inlet of the pneumatic nozzle (201) through an air pipe.

9. The glass fiber antistatic agent external spraying equipment according to claim 1, characterized in that: It also comprises an outer box body (5), wherein the outer box body (5) is provided with a plurality of groups of the atomizing nozzle assemblies (2) and the guide assemblies (3) corresponding to each other from top to bottom.

10. The glass fiber antistatic agent external spraying equipment according to claim 9, characterized in that: A liquid collecting box (6) is mounted on the outer box body (5). The upper portion of the liquid collecting box (6) is open and is arranged below the guide assembly (3) located at the lowest position among the plurality of guide assemblies (3). The liquid collecting box (6) is connected to the container assembly (1) via an oil return groove or an oil return hole.

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