A kind of carbon fiber precursor oiling device

Abstract

The application discloses a kind of oiling device for carbon fiber precursor oiling agent, belong to carbon fiber precursor production technical field, including oil groove, the precursor bundle is immersed in the oil groove, the precursor bundle is immersed in oiling agent by the oil discharge end of oil groove, and the oil inlet end of oil groove is separated from oiling agent;First spray assembly is provided on the oil groove with the opening towards the precursor bundle, and the precursor bundle is opened when the oiling agent is sprayed in the first spray assembly, and the bottom of the oil groove is provided with ultrasonic generating assembly to promote the precursor bundle after opening to be quickly and uniformly oiled.The present application is used to solve the problem that carbon fiber cannot be uniformly oiled, the precursor is easily gathered together and cannot be dispersed, resulting in poor oiling effect of the precursor, and the efficiency is low when the precursor is oiled, and the oiling agent used is easy to break emulsion and precipitate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of carbon fiber precursor production, and particularly relates to an oiling device for carbon fiber precursor. BACKGROUND

[0002] In the existing oiling process of carbon fiber precursor production, the precursor enters an oil bath and is naturally soaked. At present, the oiling of carbon fiber precursors in major carbon fiber manufacturers is performed by immersing the fiber bundle in an oil tank and relying on natural soaking. The process of the precursor fiber bundle is as follows: an oil tank feeding roller group, oil tank immersion, and a fiber bundle pulling-out roller group. The precursor fiber bundle is immersed in the oil agent in the oil tank by the feeding roller group of the oil tank, and the fiber bundle direction is opposite to the oil agent circulation direction. Under the traction of the fiber bundle pulling-out roller group, the fiber bundle is pulled out of the oil tank and enters the next process. The carbon fiber precursor is completed by natural soaking.

[0003] The natural soaking method has the following disadvantages:

[0004] 1. The diameter of the carbon fiber precursor is generally between 5-10 microns, and the number of carbon fiber bundle filaments is generally between 3,000 and 12,000. The thin and dense characteristics of the precursor fiber bundle make it difficult to achieve uniform oiling of each filament bundle using the existing natural soaking method. The oil agent slowly enters the inside of the filament bundle from the surface of the filament bundle when the precursor is naturally soaked, resulting in more oil agent on the surface of the precursor than in the inside of the precursor, uneven oil content between the filaments of the precursor, and further affecting the quality of the precursor.

[0005] 2. To achieve uniform oiling of the precursor fiber bundle, the residence time of the fiber bundle in the oil bath tank must be increased. This requires a longer oil tank, increasing equipment investment and equipment footprint, or reducing the spinning speed, affecting the production efficiency of the precursor and increasing production costs.

[0006] 3. To improve the production efficiency of the precursor and reduce the production cost of the precursor, manufacturers generally use a longer oil tank to increase the residence time of the fiber bundle in the oil bath. A large oil tank increases the energy consumption for temperature control because the oil bath needs to maintain a certain process temperature. The replacement of the oil bath increases the consumption of the oil agent due to the use period of the oil agent and the dead volume of the oil tank circulation, resulting in waste of the oil agent.

[0007] 4. The main substance in the oil agent for carbon fiber precursor is an oily substance, which cannot be dissolved in water. However, the main component of the oil agent for carbon fiber precursor must be uniformly and stably dispersed in water. Therefore, the oil agent is dispersed in water in the form of "oil in water" through modification, addition of additives, etc. This state is only relatively stable, but under the conditions of high temperature and continuous mechanical disturbance, the "oil in water" form will gradually fail, causing the oil agent solution to break and the oil agent to precipitate and lose effectiveness.

[0008] Therefore, in view of the above problems, a device for effectively and uniformly applying oil to carbon fiber precursor is needed, which can save cost, save space occupied by equipment, and improve the production efficiency of the precursor. SUMMARY

[0009] In view of the above problems, the present application provides an oiling device for oil agent for carbon fiber precursor, which is used to solve the problems that carbon fiber cannot be uniformly oiled, the precursor is easily gathered together and cannot be dispersed, resulting in poor oiling effect of the precursor, and the oiling efficiency of the precursor is low, and the oil agent used is easy to break emulsion and precipitate and lose effectiveness.

[0010] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is: an oiling device for oil agent for carbon fiber precursor, comprising an oil tank, a precursor bundle is immersed in the oil tank, the precursor bundle is immersed in the oil agent from the oil discharge end of the oil tank, and the oil inlet end of the oil tank is separated from the oil agent;

[0011] A first spraying assembly with an opening facing the precursor bundle is arranged on the oil tank, the precursor bundle is separated when the oil agent is sprayed in the first spraying assembly, and an ultrasonic generating assembly is arranged at the bottom of the oil tank to promote the precursor bundle to be quickly and uniformly oiled after being separated.

[0012] Compared with the prior art, the beneficial effects of the present application are: by arranging the first spraying assembly, when the precursor bundle is immersed in oil, the oil agent sprayed in the first spraying assembly can impact and scatter the precursor bundle, thereby completing the separation action, so that the oil agent can enter the inside of the bundle, by arranging the ultrasonic generating assembly, when the ultrasonic generating assembly is working, due to the interaction between the ultrasonic wave and the medium, the medium changes, thereby producing a series of mechanical and electromagnetic ultrasonic effects, mainly mechanical effects and cavitation effects, under the double effects of the mechanical effects and cavitation effects of the ultrasonic wave, and due to the separation of the carbon fiber precursor bundle when entering the oil, the oil agent can be quickly and uniformly attached to the surface of each carbon fiber precursor, thereby achieving the purposes of improving the quality of the carbon fiber precursor, improving the production efficiency, and reducing the production cost; because the mechanical effect of the ultrasonic wave can make the main components in the oil agent disperse in water for a long time and uniformly and stably, which greatly prolongs the service life of the oil agent.

[0013] As a further improvement of the above-mentioned scheme, a second spraying assembly with the same structure as the first spraying assembly is movably arranged on one side of the oil tank, the second spraying assembly extends into the oil tank and has an opening facing the precursor bundle, and is arranged in communication with the first spraying assembly;

[0014] The arrangement direction of the second spraying assembly is opposite to that of the first spraying assembly.

[0015] The improved technical effects are that the second spraying assembly can move along the moving direction of the original bundle during the process of opening the bundle, until it moves to the limit range, and the original bundle between the first spraying assembly and the second spraying assembly is in an unfolded state, so that the contact time of the original bundle with the oil agent is prolonged, and the oiling effect is better.

[0016] As a further improvement of the above scheme, the first spraying assembly comprises a first nozzle and a second nozzle arranged to rotate relative to each other, and the first nozzle and the second nozzle are oppositely arranged.

[0017] The first nozzle and the second nozzle are connected by a pipeline, and an electric control valve is arranged on the first nozzle to selectively connect the first nozzle and the second nozzle to spray the oil agent.

[0018] As a further improvement of the above scheme, the two sides of the first nozzle and the second nozzle are respectively provided with baffles, the middle of the baffles is convex upward in an arc shape, and the baffles form a channel for further opening the bundle of the original bundle perpendicular to the moving direction of the original bundle.

[0019] The spraying surface of the first nozzle and the second nozzle is spherical.

[0020] The improved technical effects are that the first nozzle and the second nozzle with opposite openings can change the spraying direction of the original bundle, avoid the original bundle continuously receiving impact force in the same direction, the baffles can provide support to the original bundle, the arc-shaped baffles can accelerate the opening and maintain the open state, and the two baffles guide the sprayed oil agent to move perpendicular to the moving direction of the original bundle, thereby providing a dispersing force to the original bundle.

[0021] As a further improvement of the above scheme, a pressure wire assembly for maintaining the open state of the original bundle is further arranged in the oil groove; the pressure wire assembly comprises a deflection rod rotatably arranged in the oil groove, and pressure wire rollers are rotatably arranged at both ends of the deflection rod, the surface of the pressure wire rollers has a plurality of contact portions arranged eccentrically, and the centers of adjacent two contact portions do not coincide.

[0022] The improved technical effects are that the pressure wire rollers can contact and extrude the original bundle, the extrusion direction is opposite to the impact during the opening, and the original bundle is limited in the area defined by the contact portions under the action of the contact portions, so that the original bundle maintains a dispersed and open state, and different downward displacements are generated on the original bundle during the continuous movement of the original bundle, so that the original bundle at different positions is in continuous and disordered fluctuation, thereby increasing the contact area with the oil agent.

[0023] As a further improvement of the above-mentioned scheme, the press roll comprises a roller and an outer cylinder, the outer cylinder is rotatably sleeved on the roller, and an elastic pad is arranged between the roller and the outer cylinder, and a plurality of vibrators are arranged on the outer cylinder.

[0024] The improved technical effect is that the vibrators can make the press roll vibrate to facilitate the acceleration of the raw silk bundle when contacting the raw silk bundle.

[0025] As a further improvement of the above-mentioned scheme, a drive box for driving the deflection rod to swing is fixedly arranged on the outer side wall of the oil tank, and a junction box is arranged on the drive box.

[0026] The improved technical effect is that the drive box can drive the deflection rod to swing within a limited range.

[0027] As a further improvement of the above-mentioned scheme, an oil agent preparation tank is further included, a heater and a filter screen are arranged in the oil agent preparation tank, a circulating pump is arranged on the outer side of the oil agent preparation tank, the inlet of the circulating pump is communicated with the filter screen, and the outlet is communicated with the oil tank.

[0028] A three-way valve is arranged on the filter screen communicated with the oil tank, and another outlet end of the three-way valve is respectively communicated with the first spraying assembly and the second spraying assembly.

[0029] As a further improvement of the above-mentioned scheme, an overflow groove is arranged at the oil discharging end of the oil tank, and the overflow groove is communicated with the oil agent preparation tank.

[0030] The improved technical effect is that the oil agent preparation tank and the oil tank are arranged as a circulating channel, so that the oil agent can be circulated continuously to complete the treatment of the oil agent and realize the effective use of the oil agent.

[0031] As a further improvement of the above-mentioned scheme, a plurality of feeding roller groups located at the oil discharging side and a plurality of pulling-out roller groups located at the oil inlet side are arranged above the oil tank, and a pressing roller which is in contact with the pulling-out roller groups and extrudes the excess oil agent on the raw silk bundle is further arranged above the oil tank.

[0032] The improved technical effect is that the feeding roller groups and the pulling-out roller groups are mainly used for driving the feeding and pulling-out of the raw silk bundle, and the pressing roller is used for extruding the excess oil agent after the oiling of the raw silk bundle. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0034] Figure 2 It is a schematic diagram of the structure of the first spraying assembly;

[0035] Figure 3 It is Figure 2Schematic diagram of the structure in direction A;

[0036] Figure 4 This is a schematic diagram of the second injection assembly and its installation.

[0037] Figure 5 This is a schematic diagram of the wire pressing assembly;

[0038] Figure 6 This is a schematic diagram of the structure of the wire pressing roller;

[0039] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the pressure roller;

[0040] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure in the middle BB direction.

[0041] In the diagram: 10. Oil tank; 101. Overflow tank; 11. First spray assembly; 111. First nozzle; 112. Second nozzle; 113. Pipe; 114. Electrically controlled valve; 115. Baffle; 12. Ultrasonic generator assembly; 121. Regulator; 13. Second spray assembly; 131. Movable seat; 132. Connecting arm; 14. Deflection rod; 15. Pressing roller; 151. Contact part; 152. Roller; 153. Outer cylinder; 154. Elastic pad; 155. Vibrator; 16. Drive box; 17. Junction box; 18. Oil mixing tank; 19. Heater; 20. Filter screen; 21. Circulation pump; 22. Three-way valve; 23. Feed roller group; 24. Pull-out roller group; 25. Squeeze roller; 50. Raw yarn bundle. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0043] like Figures 1-8 As shown, the specific solution of this embodiment is as follows: an oiling device for carbon fiber precursor includes an oil tank 10, in which a precursor fiber bundle 50 is immersed. Specifically, when oiling the precursor fiber bundle 50, the precursor fiber bundle 50 is immersed in the oil agent within the oil tank 10, moving below the surface of the oil agent. The precursor fiber bundle 50 is immersed in the oil agent from the oil outlet end of the oil tank 10, while the oil inlet end of the oil tank 10 exits from the oil agent to adhere to the oil. Figure 1 The description is in the directions of up, down, left, and right. The oil is injected into the oil tank 10 from the right side and overflows from the left side. The raw fiber bundle 50 enters the oil tank 10 from the left side and is pulled out from the right side when oiling.

[0044] The oil tank 10 is provided with a first spraying assembly 11 which opens towards the raw silk bundle 50, and when oil is sprayed in the first spraying assembly 11, the raw silk bundle 50 is opened, specifically, the oil sprayed in the first spraying assembly 11 impacts the raw silk bundle 50, so that each raw silk of the raw silk bundle 50 is blown apart, and the bottom of the oil tank 10 is provided with an ultrasonic generating assembly 12 which promotes the raw silk bundle 50 after opening to be quickly and uniformly oiled, in this embodiment, the ultrasonic generating assembly 12 is specifically an ultrasonic generator; in order to control the oil content on the surface of the raw silk and increase the flexibility of production, an adjuster 121 is also connected to the ultrasonic generating assembly 12, and the adjuster 121 is mainly used to control the output power of the ultrasonic generating assembly 12;

[0045] The upper part of the oil tank 10 is provided with a plurality of feeding roller groups 23 located on the oil discharging side and a pulling roller group 24 located on the oil feeding side, the feeding roller groups 23 and the pulling roller group 24 are both formed by a plurality of rollers, and the main purpose is to convey the raw silk bundle 50, and the upper part of the oil tank 10 is also provided with a pressing roller 25 which is in contact with the pulling roller group 24 and squeezes the excess oil on the raw silk bundle 50, the pressing roller 25 is a single roller which is in contact with one of the rollers in the pulling roller group 24, and the pressing roller 25 and the contacted roller squeeze the raw silk bundle 50 to squeeze the excess oil on the raw silk bundle 50.

[0046] As shown in Figure 1 , 4 , as a preferred mode of the above embodiment, a second spraying assembly 13 which is the same as the first spraying assembly 11 is movably arranged on one side of the oil tank 10, specifically, a driving mechanism which can drive the second spraying assembly 13 to move is arranged on the outer side of the oil tank 10, the driving mechanism includes a movable seat 131 movably arranged on the outer side wall of the oil tank 10, the movable seat 131 is fixedly connected with a connecting arm 132 and the second spraying assembly 13 is movably arranged on the connecting arm 132, a driving motor is connected to the movable seat 131, a gear is fixedly arranged on the output shaft of the motor, a rack is fixedly arranged on the outer side wall of the oil tank 10 and is in meshing connection with the gear, so that the second spraying assembly 13 can be moved under the driving of the motor; the second spraying assembly 13 extends into the oil tank 10 and opens towards the raw silk bundle 50, and is arranged in communication with the first spraying assembly 11; the arrangement direction of the second spraying assembly 13 is opposite to that of the first spraying assembly 11, that is, the feeding pipe of the first spraying assembly 11 is arranged on the lower side, and the feeding pipe of the second spraying assembly 13 is arranged on the upper side, and the other structures are completely the same, which can be referred to the drawings Figure 4 As shown in , by arranging the second spraying assembly 13, the raw silk bundle 50 between the first spraying assembly 11 and the second spraying assembly 13 can be kept in an opened state when oil is sprayed on the raw silk bundle 50, so as to increase the contact area and contact time between the raw silk and the oil, thereby improving the efficiency and effect of oiling.

[0047] As Figure 1 , 2 , 3, as a preferred mode of the above embodiment, the first spraying assembly 11 comprises a first nozzle 111 and a second nozzle 112 arranged in rotation with each other, the first nozzle 111 and the second nozzle 112 are connected with each other through a rotating shaft, the first nozzle 111 and the second nozzle 112 are oppositely arranged, and the raw silk bundle 50 passes through the gap between the first nozzle 111 and the second nozzle 112; the first nozzle 111 and the second nozzle 112 are connected through a pipeline 113, the pipeline 113 is a hose, and the first nozzle 111 is provided with an electric control valve 114 for selectively connecting the first nozzle 111 and the second nozzle 112 for spraying oil, the selective connection means that only one connection is allowed, and the opposite direction of the connection can be changed; the two sides of the first nozzle 111 and the second nozzle 112 are respectively provided with baffles 115, the middle of the baffle 115 is upwardly protruding in an arc shape, and the baffles 115 are arranged in the pipeline 113, and the baffles 115 are arranged in the pipeline 113. Figure 2 The baffles 115 form a channel for the oil to move vertically to the movement direction of the raw silk bundle 50 to further separate the raw silk bundle 50, specifically, since the oil is sprayed between the two baffles 115, the flowing oil flows to both sides under the blockage of the two baffles 115, so that the channel is formed, which can generate an impact on the raw silk bundle 50 to separate to both sides, thereby accelerating the separation; the spraying surface of the first nozzle 111 and the second nozzle 112 is spherical, and when the separation is performed, the first nozzle 111 and the second nozzle 112 can generate an impact on the raw silk bundle 50 from different directions; under the control of the electric control valve 114, one of the first nozzle 111 and the second nozzle 112 is kept in the state of spraying, which can avoid the raw silk bundle 50 from being continuously impacted in the same direction, and the baffles 115 can guide the oil during spraying, and under the arrangement of the upward arc protrusion of the baffles 115, the raw silk subjected to different impacts can be scattered to different positions, which can also accelerate the separation of the raw silk bundle 50.

[0048] As Figure 1 , 5, 6, 7, 8, as the preferred mode of the above embodiment, the oil tank 10 is also provided with a pressure filament assembly to maintain the opening state of the raw silk bundle 50; the pressure filament assembly includes a deflection rod 14 rotatably arranged between the oil tank 10, specifically, the outer side wall of the oil tank 10 is fixedly provided with a drive box 16 for driving the deflection rod 14 to swing, the drive box 16 is provided with a drive motor, and a worm gear transmission is arranged in the drive box 16, the worm is arranged on the output shaft of the motor, and the motor can drive the deflection rod 14 to rotate when rotating, so as to deflect to the required angle, and the worm gear transmission can be automatically locked after deflecting to the required angle, avoiding the rotation of the deflection rod 14 caused by the movement of the raw silk bundle 50, thereby generating stable pressure on the raw silk bundle 50, and the drive box 16 is provided with a junction box 17, and the junction box 17 is connected with power supply, controller and the like;

[0049] The two ends of the deflection rod 14 are rotatably provided with pressure rollers 15, please refer to the attached Figure 5 When the raw silk bundle 50 is not oiled, the deflection rod 14 is arranged vertically, when the oiling work is carried out, the deflection rod 14 is deflected to make the pressure rollers 15 on both sides contact with the raw silk bundle 50, please refer to the attached Figure 1 When the raw silk bundle 50 is not oiled, the deflection rod 14 is arranged vertically, when the oiling work is carried out, the deflection rod 14 is deflected to make the pressure rollers 15 on both sides contact with the raw silk bundle 50, please refer to the attached Figure 1 Only two states are shown, another working state is that the deflection rod 14 is reversely rotated to the position where the pressure roller 15 contacts with the raw silk bundle 50, and the pressure direction of the pressure roller 15 to the raw silk bundle 50 is opposite to the impact direction of the first jet assembly 11 and the second jet assembly 13 to the raw silk bundle 50, so that the raw silk bundle 50 is more easily pressed on the pressure roller 15; the surface of the pressure roller 15 has a plurality of eccentric contact portions 151, the centers of adjacent two contact portions 151 do not coincide, as shown in the attached Figure 6 The shape of the contact portion 151 is a plurality of eccentric cylindrical segments combined together, and the contact portion 151 in the application is only the shape of the surface of the pressure roller 15;

[0050] The pressing roller 15 comprises a roller shaft 152 and an outer cylinder 153, the outer cylinder 153 is rotatably sleeved on the roller shaft 152, the contact part 151 is specifically located on the outer surface of the outer cylinder 153, and the elastic pad 154 is arranged between the roller shaft 152 and the outer cylinder 153, a plurality of vibrators 155 are arranged on the outer cylinder 153, the vibrator 155 is selected as a micro vibration motor, when the pressing roller 15 is extruded to the raw silk bundle 50 which is being subjected to the oiling operation, the vibrator 155 is started to drive the pressing roller 15 to vibrate, so that the raw silk bundle 50 can be driven to vibrate together, so that the single raw silk of the raw silk bundle 50 can be accelerated to disperse to both sides, so that the raw silk bundle 50 can keep the dispersed state after the fiber opening, and the contact time with the oil agent is improved; in addition, when the pressing roller 15 rotates together with the raw silk bundle 50, due to the arrangement of the contact part 151, on the one hand, different single raw silks in the same raw silk bundle 50 can be subjected to different pressing or lifting effects, so that the single raw silks in the same raw silk bundle 50 can move disorderly up and down, so that the single raw silks in the same raw silk bundle 50 can move respectively, the air or bubbles between the raw silks are avoided, the raw silks are more easily contacted with the oil agent, the oiling effect is improved, and on the other hand, the raw silks in different eccentric cylindrical segments only have a limiting effect when the cylindrical ends on both sides are high, when the raw silks are rotated to be higher than the cylindrical segments on both sides, the raw silks can still deviate in different cylindrical segments, so that the oiling effect can be ensured and the movement demand of the raw silks is considered.

[0051] As shown in Figure 1 As a preferred mode of the above embodiment, the oil agent preparation tank 18 is further arranged, the heater 19 and the filter screen 20 are arranged in the oil agent preparation tank 18, the heater 19 performs heating treatment on the oil agent in the oil agent preparation tank 18, the circulating pump 21 is arranged outside the oil agent preparation tank 18, the inlet of the circulating pump 21 is communicated with the filter screen 20, the outlet is communicated with the oil tank 10, and the oil agent in the oil agent preparation tank 18 is pumped into the oil tank 10 to circulate after the filter screen 20 is started; the three-way valve 22 is arranged on the oil tank 10 communicated with the filter screen 20, another outlet end of the three-way valve 22 is respectively communicated with the first spraying assembly 11 and the second spraying assembly 13; the overflow tank 101 is arranged at the oil discharge end of the oil tank 10, the overflow tank 101 is communicated with the oil agent preparation tank 18, the oil agent overflowing from the oil tank 10 flows into the overflow tank 101 and then flows back to the oil agent preparation tank 18 for recycling.

[0052] The specific working principle of the present application is as follows: first, the raw silk bundle 50 is introduced into the oil tank 10 and immersed below the oil agent liquid surface through the feeding roller group 23, the raw silk bundle 50 immersed in the oil tank 10 passes through the first spraying assembly 11 and the second spraying assembly 13, and then is introduced from the pulling-out roller group 24;

[0053] When the oiling operation is performed, the circulating pump 21 is opened to supply oil into the oil tank 10, and then the raw silk bundle 50 is pulled through the feeding roller set 23 and the pulling-out roller set 24, the first spraying assembly 11 and the second spraying assembly 13 spray oil on the raw silk bundle 50 to open the raw silk bundle 50, and then the second spraying assembly 13 moves to the limit position under the driving of the driving mechanism connected thereto, so that the interval between the first spraying assembly 11 and the second spraying assembly 13 is widened, and the raw silk bundle 50 between the first spraying assembly 11 and the second spraying assembly 13 is in the open and scattered state, when the second spraying assembly 13 moves, the deflection rod 14 is in the vertical state to facilitate the second spraying assembly 13 to pass through, after the second spraying assembly 13 passes through, the deflection rod 14 swings to contact the pressing roller 15 and the raw silk bundle 50, the vibrator 155 in the pressing roller 15 is started to continue to disperse the single raw silk in the raw silk bundle 50 on the pressing roller 15, and the contact part 151 will make the single raw silk in the raw silk bundle 50 to be stirred up and down in disorder to increase the contact area and time with the oil, and improve the oiling effect;

[0054] At the same time, the ultrasonic generating assembly 12 is started to oil the raw silk on the raw silk bundle 50, and the raw silk bundle 50 after being oiled well is extruded by the extruding roller 25 to squeeze out and discharge the excess oil, so as to complete the oiling operation.

[0055] It should be noted that in this text, the terms include, contain or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes the elements inherent to such process, method, article or device. The specific examples are applied in this text to describe the principles and implementation modes of the technical solutions of the present application, and the above example is only used to help understand the method and its core idea of the present application. The above is only the preferred embodiment of the present application, it should be pointed out that due to the limitation of language expression, there are infinite specific structures, for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements, refinements or changes can be made, or the above technical features can be combined in a proper way; these improvements, refinements, changes or combinations, or without improvement, the application of the concept and technical solutions to other fields, should be regarded as the protection scope of the present application.

Claims

1. An oiling device for carbon fiber precursor, characterized in that, Includes an oil tank (10), in which a raw filament bundle (50) is immersed, the raw filament bundle (50) is immersed in the oil agent from the oil discharge end of the oil tank (10), and the oil inlet end of the oil tank (10) leaves from the oil agent; The oil tank (10) is provided with a first spraying component (11) with its opening facing the original filament bundle (50). When the oil is sprayed out of the first spraying component (11), the original filament bundle (50) opens. The bottom of the oil tank (10) is provided with an ultrasonic generating component (12) that promotes the original filament bundle (50) to be oiled quickly and evenly after opening. The oil tank (10) is also provided with a pressing assembly to keep the original filament bundle (50) in the open state; the pressing assembly includes a deflection rod (14) rotatably arranged between the oil tank (10), and pressing rollers (15) are rotatably arranged at both ends of the deflection rod (14). The surface of the pressing roller (15) has several eccentrically arranged contact parts (151). The shape of the contact part (151) is an eccentric cylindrical section, and the centers of two adjacent contact parts (151) do not coincide.

2. The oiling device for carbon fiber precursor according to claim 1, characterized in that, A second jet assembly (13) with the same structure as the first jet assembly (11) is movably provided on one side of the oil tank (10). The second jet assembly (13) extends into the oil tank (10) and its opening faces the original filament bundle (50), and is arranged in communication with the first jet assembly (11). The second injection assembly (13) is arranged in the opposite direction to the first injection assembly (11).

3. The oiling device for carbon fiber precursor according to claim 1, characterized in that, The first spray assembly (11) includes a first nozzle (111) and a second nozzle (112) that are rotatably arranged relative to each other, with the openings of the first nozzle (111) and the second nozzle (112) facing each other, and the filament bundle (50) passing through the gap between the first nozzle (111) and the second nozzle (112); The first nozzle (111) and the second nozzle (112) are connected by a pipe (113), and the first nozzle (111) is provided with an electronically controlled valve (114) that controls the first nozzle (111) and the second nozzle (112) to selectively connect to spray oil.

4. The oiling device for carbon fiber precursor according to claim 3, characterized in that, The first nozzle (111) and the second nozzle (112) are respectively provided with baffles (115) on both sides. The middle of the baffles (115) protrudes upward in an arc shape, and a channel is formed between the baffles (115) to facilitate the oil agent to move perpendicular to the direction of movement of the original filament bundle (50) to further open the original filament bundle (50). The spray surfaces of the first nozzle (111) and the second nozzle (112) are spherical.

5. The oiling device for carbon fiber precursor according to claim 1, characterized in that, The pressing roller (15) includes a roller (152) and an outer cylinder (153). The outer cylinder (153) is rotatably sleeved on the roller (152), and an elastic pad (154) is provided between the roller (152) and the outer cylinder (153). Several vibrators (155) are provided on the outer cylinder (153).

6. The oiling device for carbon fiber precursor according to claim 1, characterized in that, A drive box (16) for driving the deflection rod (14) to swing is fixedly installed on the outer wall of the oil tank (10), and a junction box (17) is installed on the drive box (16).

7. An oiling device for carbon fiber precursor according to any one of claims 1-6, characterized in that, It also includes an oil mixing tank (18), which is equipped with a heater (19) and a filter screen (20). A circulation pump (21) is installed on the outside of the oil mixing tank (18). The inlet of the circulation pump (21) is connected to the filter screen (20), and the outlet is connected to the oil tank (10). A three-way valve (22) is installed on the filter screen (20) that is connected to the oil tank (10). The other outlet end of the three-way valve (22) is connected to the first injection assembly (11) and the second injection assembly (13) respectively.

8. The oiling device for carbon fiber precursor according to claim 7, characterized in that, An overflow trough (101) is provided at the oil drain end of the oil tank (10), and the overflow trough (101) is connected to the oil mixing tank (18).

9. The oiling device for carbon fiber precursor according to claim 7, characterized in that, Above the oil tank (10) are several feed roller groups (23) located on the oil discharge side and pull-out roller groups (24) located on the oil inlet side. Above the oil tank (10) are also extrusion rollers (25) that are in contact with the pull-out roller groups (24) and squeeze out excess oil from the raw filament bundle (50).

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