Carbon fiber sizing device

Abstract

The utility model provides a carbon fiber sizing device which comprises a sizing tank, the sizing tank is provided with an opening end, a first space is formed in the sizing tank, a wire inlet guide roller and a wire outlet guide roller are arranged on the two sides of the upper portion of the opening end respectively, and a sizing guide roller is arranged in the first space; a scraper assembly is arranged on the side, away from the wire inlet guide roller, of the wire outlet guide roller, a stirring assembly is arranged at the bottom of the sizing pool, and carbon fibers can advance along the guide rollers. In the working process, the stirring assembly is started, carbon fibers enter the first space through the wire inlet guide roller under traction, the carbon fibers are dipped in sizing liquid to complete sizing while passing through the sizing guide roller, the carbon fibers are guided to the scraper assembly through the wire outlet guide roller, and when the carbon fibers pass through the scraper assembly, the scraper assembly can remove redundant sizing liquid on the surfaces of the carbon fibers; compared with the prior art, by arranging the scraper assembly, redundant slurry on the surface of the carbon fiber after sizing can be removed, so that the carbon fiber has a flat surface, and uniform sizing of the carbon fiber is realized.

Description

Technical Field

[0001] The present application relates to the technical field of carbon fiber sizing, and in particular to a carbon fiber sizing device. Background Art

[0002] In the subsequent deep processing of carbon fiber into composite materials, it is easy to produce fuzzing and other problems, which will cause the performance of the composite material to deteriorate. The surface properties of the carbon fiber can be well improved through the sizing process. After sizing, a layer of resin film is formed on the surface of the carbon filament, which makes the carbon filament have good bundling properties, improves wear resistance, reduces fuzzing during deep processing, improves the interface properties in the composite material, and increases the strength of the composite material. The sizing process usually adopts the impregnation method. The carbon fiber passes through the sizing tank according to the prescribed sizing route, so that the slurry penetrates the carbon fiber and adheres to the carbon fiber, so that the coating amount and the penetration amount reach the required ratio, and a certain sizing rate is obtained. Most of the existing sizing devices cannot guarantee the uniformity of sizing, so that there are large differences in the sizing rate of the sized carbon fiber surface, and the sizing effect is poor. Utility Model Content

[0003] The purpose of this application is to provide a carbon fiber sizing device in view of the above problems, comprising:

[0004] A sizing tank, wherein the sizing tank has an open end and a first space is formed inside, and the sizing tank is used to hold sizing liquid; an inlet guide roller and an outlet guide roller are respectively arranged on both sides above the open end, and a sizing guide roller is arranged in the first space; the carbon fiber passes around the inlet guide roller, the sizing guide roller and the outlet guide roller in sequence;

[0005] A scraper assembly, the scraper assembly is arranged on a side of the outgoing wire guide roller away from the incoming wire guide roller, and the scraper assembly is used to scrape off excess slurry on the surface of the carbon fiber;

[0006] A stirring component is arranged at the bottom of the sizing tank, and is used to stir the sizing liquid.

[0007] According to the technical solution provided in certain embodiments of the present application, the scraper assembly includes a mounting frame, which is arranged on the side wall of the sizing pool. Two scrapers are connected to the mounting frame, and a scraping gap is provided between the two scrapers. When the carbon fiber passes through the scraping gap, the two scrapers can scrape off excess slurry on the surfaces of both sides of the carbon fiber.

[0008] According to the technical solution provided in certain embodiments of the present application, two slide rails are fixedly connected to the mounting frame, and the two slide rails extend in the vertical direction. The two ends of the scraper are respectively slidably connected to the two slide rails and can be relatively fixed to the two slide rails by locking bolts.

[0009] According to the technical solutions provided in some embodiments of the present application, a brush is provided at one end of the two scrapers close to the carbon fiber.

[0010] According to the technical solution provided in certain embodiments of the present application, a baffle is further provided on the mounting frame, and the baffle is located directly below the two scrapers and forms an angle with the horizontal direction, and the lower end of the baffle extends into the first space.

[0011] According to the technical solution provided in certain embodiments of the present application, a bracket is provided under the sizing pool, the bracket has a second space, the stirring assembly includes a motor, the motor is located in the second space, the motor is fixedly connected to the bottom of the sizing pool, the free end of the drive shaft of the motor passes through the bottom of the sizing pool and extends into the first space, and the free end of the drive shaft of the motor is fixedly connected to a paddle.

[0012] According to the technical solutions provided in certain embodiments of the present application, a heating component is provided at the bottom of the sizing tank, and the heating component is used to heat the sizing liquid in the first space.

[0013] According to the technical solution provided in certain embodiments of the present application, a liquid level gauge is provided on the side wall of the sizing pool, and the liquid level gauge is electrically connected to a control module. The control module is also electrically connected to an infusion pump, and the infusion pump is used to transport the sizing liquid in the storage tank to the first space through a catheter. The liquid level gauge is used to collect the liquid level information of the sizing liquid in the first space and generate an electrical signal, and the control module is used to control the start and stop of the infusion pump according to the electrical signal.

[0014] Compared with the prior art, the present application has the following beneficial effects: the carbon fiber sizing device provided by the present application comprises a sizing tank, the sizing tank has an open end and a first space is formed inside, an inlet guide roller and an outlet guide roller are respectively arranged on both sides above the open end, a sizing guide roller is arranged in the first space; a scraper assembly is arranged on the side of the outlet guide roller away from the inlet guide roller, and a stirring assembly is arranged at the bottom of the sizing tank; when working, the stirring assembly is started to stir the sizing liquid, the carbon fiber enters the first space through the inlet guide roller under traction, and is immersed in the sizing liquid while passing through the sizing guide roller to complete sizing, Then the outlet guide roller guides the carbon fiber to the scraper assembly. When the carbon fiber passes through the scraper assembly, the scraper assembly can remove excess slurry on the surface of the carbon fiber. Compared with the prior art, the present application can remove excess slurry on the surface of the carbon fiber after sizing by setting the scraper assembly, so that the carbon fiber has a flat surface, that is, the upper and lower surfaces of the carbon fiber are evenly sized. By setting the stirring assembly at the bottom of the sizing tank, the concentration of the sizing liquid in the sizing tank can be kept constant, which is more conducive to ensuring uniform sizing of the carbon fiber.

[0015] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of features or beneficial effects means that specific technical features, technical solutions or beneficial effects are included in at least one embodiment. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be realized without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in a specific embodiment that does not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A structural schematic diagram of a carbon fiber sizing device provided in this application;

[0018] Figure 2A schematic structural diagram of a scraper assembly of a carbon fiber sizing device provided in the present application.

[0019] The text annotations in the figure represent:

[0020] 1. Sizing tank; 2. Inlet guide roller; 3. Outlet guide roller; 4. Sizing guide roller; 5. Scraper assembly; 6. Baffle; 7. Stirring assembly; 8. Heating assembly; 9. Liquid level meter; 10. Control module; 11. Liquid storage tank; 12. Infusion pump; 13. Slide rail; 14. Scraper; 15. Brush. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present application. Specifically, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] As mentioned in the background technology, in view of the problems in the prior art, this embodiment provides a carbon fiber sizing device, comprising:

[0024] A sizing tank 1, wherein the sizing tank 1 has an open end and a first space is formed inside, and the sizing tank 1 is used to contain sizing liquid; an inlet guide roller 2 and an outlet guide roller 3 are respectively provided on both sides above the open end, and a sizing guide roller 4 is provided in the first space; the carbon fiber passes around the inlet guide roller 2, the sizing guide roller 4 and the outlet guide roller 3 in sequence;

[0025] A scraper assembly 5, the scraper assembly 5 is arranged on a side of the outgoing wire guide roller 3 away from the incoming wire guide roller 2, and the scraper assembly 5 is used to scrape off excess slurry on the surface of the carbon fiber;

[0026] A stirring component 7 is provided at the bottom of the sizing tank 1 and is used for stirring the sizing liquid.

[0027] Please refer to Figure 1 In this embodiment, three inlet guide rollers 2 are provided, and the three inlet guide rollers 2 can make the carbon fiber in a taut state when entering the first space; for the convenience of description, the three inlet guide rollers 2 are respectively recorded as the first guide roller, the second guide roller and the third guide roller, Figure 1 The leftmost one is the first guide roller, the rightmost one is the third guide roller, and the middle one is the second guide roller. The carbon fiber is wound from the upper side of the first guide roller to the lower side of the second guide roller, then to the upper side of the third guide roller, and then to the lower side of the sizing guide roller 4, and finally wound out through the upper side of the outlet guide roller 3 and passed through the scraping gap. The height of the sizing guide roller 4 is lower than the height of the inlet guide roller 2 and lower than the height of the outlet guide roller 3; the sizing guide roller 4 is immersed in the sizing liquid; in the prior art, the carbon fiber is generally sized by closely arranging a plurality of carbon filaments on each guide roller to form a plane.

[0028] During operation, the stirring assembly 7 is started to stir the sizing liquid. The carbon fiber enters the first space through the inlet guide roller 2 under traction, and is immersed in the sizing liquid while passing through the sizing guide roller 4 to complete sizing. Then, it is guided to the outlet guide roller 3. The outlet guide roller 3 guides the carbon fiber to the scraper assembly 5. When the carbon fiber passes through the scraper assembly 5, the excess slurry on the surface of the carbon fiber is scraped off by the scraper assembly 5 to form a smooth and flat surface.

[0029] By setting the scraper assembly 5, the present application can remove excess slurry on the surface of the carbon fiber after sizing, so that the carbon fiber has a flat surface, that is, the surface of the carbon fiber is evenly sized; by setting the stirring assembly 7 at the bottom of the sizing tank 1, the concentration of the sizing liquid in the sizing tank 1 can be kept constant, which is more conducive to ensuring uniform sizing of the carbon fiber.

[0030] In a preferred embodiment, the scraper assembly 5 includes a mounting frame, which is arranged on the side wall of the sizing pool 1. Two scrapers 14 are connected to the mounting frame, and there is a scraping gap between the two scrapers 14. When the carbon fiber passes through the scraping gap, the two scrapers 14 can scrape off excess slurry on the surfaces of both sides of the carbon fiber.

[0031] like Figure 2As shown, the mounting frame includes two support rods, which extend in a vertical direction, and a connecting rod is fixedly connected between the two support rods to enhance the stability of the support. In this embodiment, two connecting rods can be provided, and the two connecting rods are respectively vertically connected to the two support rods, and the two connecting rods are respectively connected to the upper and lower ends of the two support rods, and the bottom ends of the two support rods are fixed to the side walls of the sizing pool 1, and two scrapers 14 are connected between the two support rods, and the two scrapers 14 are distributed in a vertical direction, and a scraping gap is formed between the two scrapers 14 for the carbon fiber to pass through; the carbon fibers are closely arranged to form a plane, and the two scrapers 14 can respectively remove excess slurry on the upper and lower surfaces of the carbon fibers; it should be noted that in other embodiments of the present application, only one scraper 14 located below the carbon fibers can be provided, which can achieve the effect of removing excess slurry from the surface of the carbon fibers.

[0032] In a preferred embodiment, two slide rails 13 are fixedly connected to the mounting frame, and the two slide rails 13 extend in the vertical direction. Both ends of the scraper 14 are slidably connected to the two slide rails 13 respectively, and can be relatively fixed to the two slide rails 13 by locking bolts.

[0033] like Figure 1 As shown, the two scrapers 14 can slide up and down along the vertical direction on the slide rail 13 respectively. Through the above arrangement, the size of the scraping gap between the two scrapers 14 can be adjusted according to the actual needs.

[0034] In a preferred embodiment, the two scrapers 14 are each provided with a brush 15 at one end close to the carbon fiber. Figure 1 As shown, by arranging brushes 15 on the two scrapers 14, the excess slurry on the surface of the carbon fiber can be effectively removed, and the damage to the carbon fiber can be prevented.

[0035] In a preferred embodiment, a baffle 6 is further provided on the mounting frame. The baffle 6 is located directly below the two scrapers 14 and forms an angle with the horizontal direction. The lower end of the baffle 6 extends into the first space.

[0036] like Figure 1 As shown, the baffle 6 is located directly below the scraper assembly 5. When the carbon fiber passes through the scraping gap, the excess slurry on the surface of the carbon fiber is scraped by the scraper assembly 5 and falls onto the baffle 6. Since the baffle 6 is arranged in an inclined state, the slurry on the baffle 6 can flow back to the sizing pool 1 along the baffle 6 to avoid waste.

[0037] In a preferred embodiment, a bracket is provided under the sizing pool 1, and the bracket has a second space. The stirring assembly 7 includes a motor, and the motor is located in the second space. The motor is fixedly connected to the bottom of the sizing pool 1, and the free end of the drive shaft of the motor passes through the bottom of the sizing pool 1 and extends into the first space. The free end of the drive shaft of the motor is fixedly connected with a paddle.

[0038] like Figure 1 As shown, the motor is connected to an external power source, and the motor can drive the paddle to rotate around the axis of the driving shaft of the motor. At the same time, the paddle can stir the sizing liquid to make the concentration of each part of it relatively uniform.

[0039] In a preferred embodiment, a heating component 8 is provided at the bottom of the sizing tank 1, and the heating component 8 is used to heat the sizing liquid in the first space.

[0040] like Figure 1 As shown, the heating component 8 includes a heating wire, and a heat pipe is disposed on the outer shell of the heating wire. The heating wire can heat the sizing liquid so that the movement state between molecules of the sizing liquid in the sizing pool 1 is the same at a constant temperature. During the sizing process, the sizing liquid can be evenly spread on the surface of the carbon fiber.

[0041] In a preferred embodiment, a liquid level gauge 9 is provided on the side wall of the sizing pool 1, and the liquid level gauge 9 is electrically connected to a control module 10. The control module 10 is also electrically connected to an infusion pump 12. The infusion pump 12 is used to transport the sizing liquid in the storage tank 11 to the first space through a catheter. The liquid level gauge 9 is used to collect the liquid level information of the sizing liquid in the first space and generate an electrical signal. The control module 10 is used to control the start and stop of the infusion pump according to the electrical signal.

[0042] like Figure 1 As shown, the liquid level meter 9 can collect the liquid level of the sizing liquid in the sizing pool 1 in real time and generate an electrical signal, and send the electrical signal to the control module at the same time. The control module 10 stores a first set height value and a second set height value. The control module 10 compares the liquid level of the current sizing liquid represented by the received electrical signal with the first set height value. When it is determined that the liquid level of the current sizing liquid is lower than the first set height value, the control module 10 controls the infusion pump 12 to start, and the infusion pump 12 transports the sizing liquid in the storage tank 11 to the first space; when the sizing liquid in the sizing pool 1 reaches the second set height value, the control module 10 controls the infusion pump 12 to turn off and stop transporting the sizing liquid into the first space, wherein the first set height value is less than the second set height value.

[0043] The carbon fiber sizing device provided in the present application is provided with a scraper assembly 5 with an adjustable position, and a brush 15 is provided at one end of the scraper 14 near the scraping gap, so that the excess slurry on the surface of both sides of the carbon fiber can be removed while avoiding damage to the surface of the carbon fiber; by arranging a baffle 6 below the scraping assembly 5, the scraped excess slurry can fall onto the baffle 6 and then flow back to the sizing tank 1, so that the excess slurry can be recycled; by arranging the stirring assembly 7 at the bottom of the sizing tank 1, the sizing liquid is stirred to make its concentration uniform in each part, so as to ensure that the sizing amount of each carbon fiber of the carbon fiber is relatively constant; by arranging the heating assembly 8, the movement state between the molecules of the sizing liquid is the same at a constant temperature, and during the sizing process, the sizing liquid can be evenly spread on the surface of the carbon fiber; by arranging the liquid level meter 9 and the control module 10, the sizing device can realize automatic sizing, which reduces labor and improves work efficiency.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A carbon fiber sizing device, characterized in that: include: A sizing tank (1), the sizing tank (1) having an open end and forming a first space therein, the sizing tank (1) being used to contain sizing liquid; an inlet guide roller (2) and an outlet guide roller (3) are respectively provided on both sides above the open end, and a sizing guide roller (4) is provided in the first space; the carbon fiber passes around the inlet guide roller (2), the sizing guide roller (4) and the outlet guide roller (3) in sequence; A scraper assembly (5), the scraper assembly (5) being arranged on a side of the outlet guide roller (3) away from the inlet guide roller (2), and the scraper assembly (5) being used to scrape off excess slurry on the surface of the carbon fiber; A stirring component (7), wherein the stirring component (7) is arranged at the bottom of the sizing tank (1), and the stirring component (7) is used to stir the sizing liquid.

2. A carbon fiber sizing device according to claim 1, characterized in that: The scraper assembly (5) comprises a mounting frame, the mounting frame is arranged on the side wall of the sizing tank (1), and two scrapers (14) are connected to the mounting frame. There is a scraping gap between the two scrapers (14). When the carbon fiber passes through the scraping gap, the two scrapers (14) can scrape off excess slurry on the surfaces of both sides of the carbon fiber.

3. A carbon fiber sizing device according to claim 2, characterized in that: Two slide rails (13) are fixedly connected to the mounting frame, and the two slide rails (13) extend in the vertical direction. The two ends of the scraper (14) are respectively slidably connected to the two slide rails (13) and can be relatively fixed to the two slide rails (13) by locking bolts.

4. A carbon fiber sizing device according to claim 3, characterized in that: The two scrapers (14) are each provided with a brush (15) at one end close to the carbon fiber.

5. A carbon fiber sizing device according to claim 4, characterized in that: The mounting frame is also provided with a baffle (6), which is located directly below the two scrapers (14) and forms an angle with the horizontal direction, and the lower end of the baffle (6) extends into the first space.

6. A carbon fiber sizing device according to claim 1, characterized in that: A bracket is provided below the sizing pool (1), and the bracket has a second space. The stirring assembly (7) includes a motor, and the motor is located in the second space. The motor is fixedly connected to the bottom of the sizing pool (1), and the driving shaft of the motor passes through the bottom of the sizing pool (1) and extends into the first space. A paddle is fixedly connected to the driving shaft of the motor.

7. A carbon fiber sizing device according to claim 1, characterized in that: A heating component (8) is provided at the bottom of the sizing tank (1), and the heating component (8) is used to heat the sizing liquid in the first space.

8. The carbon fiber sizing device according to claim 1, characterized in that: A liquid level meter (9) is provided on the side wall of the sizing tank (1), the liquid level meter (9) is electrically connected to a control module (10), the control module (10) is also electrically connected to an infusion pump (12), the infusion pump (12) is used to transport the sizing liquid in the storage tank (11) to the first space via a conduit, the liquid level meter (9) is used to collect the liquid level information of the sizing liquid in the first space and generate an electrical signal, and the control module (10) is used to control the start and stop of the infusion pump (12) according to the electrical signal.

Images