Carbon fiber yarn surface treatment device

Abstract

The utility model provides a carbon fiber yarn surface treatment device which comprises an electrolytic bath used for containing electrolyte, a yarn inlet roller and a yarn outlet roller are arranged in the top area of the electrolytic bath, the carbon fiber yarn surface treatment device further comprises an electrolyte spraying assembly, and the electrolyte spraying assembly is arranged adjacent to the yarn inlet roller and / or the yarn outlet roller. The electrolyte spraying assembly is provided with a liquid spraying pipe, and electrolyte flowing out of the liquid spraying pipe can be sprayed to the carbon fiber filaments guided by the filament feeding roller and / or the filament discharging roller. According to the utility model, the phenomena of fuzzing of carbon fiber yarns on the yarn feeding roller and mechanical damage of broken yarns can be effectively avoided, so that the phenomenon that the broken yarns wind the roller is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber production equipment design, and specifically relates to a carbon fiber filament surface treatment device. Background Art

[0002] In view of the characteristics of the performance of domestically produced raw silk, the carbonization process will cause single filament breakage, hair, and then lead to roller entanglement. In particular, after high-temperature carbonization, the surface treatment process (such as electrolyte etching) and subsequent water washing will cause friction between the carbon fiber and the transmission roller, as well as surface tension adsorption, resulting in serious mechanical damage. In the case of light, a small amount of carbon fiber hair will be produced, affecting the quality of the carbon fiber. In the case of heavy, a large amount of hair will be produced, leading to roller entanglement and even the whole line stopping, affecting normal production and causing huge economic losses. In response to this phenomenon, in the existing technology, specially set up personnel to constantly clean the carbon fiber hair. This manual processing method is labor-intensive, time-consuming, and labor-intensive. Utility Model Content

[0003] Therefore, the utility model provides a carbon fiber filament surface treatment device, which can solve the technical problem in the prior art that in the subsequent surface treatment process after the filament bundle is carbonized at high temperature, the friction between the carbon fiber filament and the transmission roller is large, resulting in the carbon fiber filament being easily mechanically damaged in the surface treatment process, and even causing the filament to break and entangle the roller.

[0004] In order to solve the above problems, the utility model provides a carbon fiber filament surface treatment device, including an electrolytic cell for accommodating an electrolyte, wherein a wire feed roller and a wire outlet roller are arranged in the top area of ​​the electrolytic cell, and also includes an electrolyte spray assembly, wherein the electrolyte spray assembly is arranged adjacent to the wire feed roller and / or the wire outlet roller, and the electrolyte spray assembly has a spray pipe, and the electrolyte flowing out of the spray pipe can be sprayed onto the carbon fiber filaments guided on the wire feed roller and / or the wire outlet roller.

[0005] In some embodiments, the shower tube has a plurality of liquid outlets arranged at intervals along its axial direction, and the outlet direction of each liquid outlet forms an angle θ with the horizontal line, and θ satisfies μ=aθ+bλ+c, wherein μ is the breakage rate of the carbon fiber yarn on the corresponding shower tube, λ is the average flow velocity of the water flow in the tube, and a, b, and c are constants.

[0006] In some embodiments, the carbon fiber surface treatment device further comprises a pumping device, the pumping end of the pumping device is below the liquid level of the electrolyte in the electrolytic cell, and the pumping end of the pumping device is connected to the liquid inlet pipe of the shower pipe.

[0007] In some embodiments, a fixed frame is disposed on the electrolytic cell, and two of the fixed frames are respectively mounted on opposite sides of the electrolytic cell, and two ends of the shower pipe are detachably connected to each of the fixed frames.

[0008] In some embodiments, both ends of the shower tube are respectively provided with a threaded column extending along the axial direction thereof, a nut is threadedly connected to the threaded column, a connecting column is fixedly connected to the wall surface of the fixed frame, the connecting column has an accommodating groove, the end face of the nut away from the shower tube can be accommodated in the accommodating groove, and when the nut is driven to rotate along the first rotation direction relative to the threaded column, the end face of the nut away from the shower tube can be stopped and positioned against the bottom wall of the accommodating groove.

[0009] In some embodiments, a handle is provided on the outer tube wall of the shower tube.

[0010] In some embodiments, there are two handles, and the two handles are respectively disposed adjacent to two ends of the shower tube.

[0011] In some embodiments, both ends of the wire feeding roller are rotatably connected between two fixed frames; and / or both ends of the wire outlet roller are rotatably connected between two fixed frames.

[0012] In some embodiments, the carbon fiber filament surface treatment device also includes a first guide roller and a second guide roller, wherein the first guide roller is adjacent to and parallel to the feed roller, and the second guide roller is adjacent to and parallel to the outlet roller, and the carbon fiber filaments are tensioned below the liquid surface of the electrolyte by the first guide roller and the second guide roller.

[0013] In some embodiments, both ends of the first guide roller and the second guide roller are rotatably connected between two fixed frames.

[0014] The carbon fiber surface treatment device provided by the utility model has the following beneficial effects:

[0015] Electrolyte spraying assemblies are respectively arranged near the wire feed roller and the wire outlet roller so that electrolyte can be sprayed on the carbon fiber filaments respectively guided on the transmission roller, which can reduce the friction between the carbon fiber filaments and the transmission roller, effectively solve the problem of mechanical damage to the carbon fiber filaments in the surface treatment process, and ensure the high-speed and stable operation of the carbon fiber filaments. It should be noted that in the production process of carbon fiber filaments, the carbon fiber filament surface treatment device of the utility model is arranged on the downstream side of the high-temperature carbonization furnace. The carbon fiber filaments that have just been carbonized at high temperature are relatively brittle, and the guiding process on the wire feed roller is very prone to fluffing or even wire breakage. Therefore, it is particularly necessary to arrange the electrolyte spraying assembly of the utility model at the position of the wire feed roller of the carbon fiber filament surface treatment device, which can effectively prevent the fluffing and wire breakage of the carbon fiber filaments on the wire feed roller, and further prevent the occurrence of wire breakage and roller entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a carbon fiber surface treatment device in an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Left view of

[0019] Figure 3 yes Figure 1 A schematic diagram of the partial structure of the electrolyte spray assembly;

[0020] Figure 4 yes Figure 3 Cross-section of the middle AA;

[0021] Figure 5 It is a schematic diagram of the relative position relationship between the liquid outflow direction of the liquid sprinkling pipe and the wire outlet roller or the wire inlet roller in the utility model.

[0022] The accompanying drawings are marked as follows:

[0023] 1. Electrolytic cell; 21. Wire inlet roller; 22. Wire outlet roller; 23. First wire guide roller; 24. Second wire guide roller; 3. Electrolyte spray assembly; 31. Spray pipe; 311. Liquid inlet pipe; 312. Threaded column; 313. Nut; 314. Handle; 315. Liquid outlet; 4. Fixed frame; 41. Connecting column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0028] See also Figures 1 to 5 As shown, according to an embodiment of the present invention, a carbon fiber surface treatment device is provided, comprising an electrolytic tank 1 for containing an electrolyte. It can be understood that the electrolyte is used to etch the surface of the carbon fiber immersed therein. For details, see Figure 1 As shown, the top area (also understood as the upper area) of the electrolytic cell 1 is provided with a wire feed roller 21 and a wire outlet roller 22, and also includes an electrolyte spray assembly 3, the electrolyte spray assembly 3 is arranged adjacent to the wire feed roller 21 and / or the wire outlet roller 22, and the electrolyte spray assembly 3 has a spray pipe 31, and the electrolyte flowing out of the spray pipe 31 can be sprayed onto the carbon fiber filaments guided on the wire feed roller 21 and / or the wire outlet roller 22, see specifically Figure 1 As shown, in a specific embodiment, the aforementioned electrolyte spraying components 3 are provided in two groups, and each group of electrolyte spraying components 3 is provided corresponding to the aforementioned wire feeding roller 21 and wire outlet roller 22 .

[0029] In this technical solution, an electrolyte spray assembly 3 is respectively arranged near the wire feed roller 21 and the wire outlet roller 22 so that the electrolyte can be sprayed on the carbon fiber filaments guided on the transmission rollers, which can reduce the friction between the carbon fiber filaments and the transmission rollers, effectively solve the problem of mechanical damage to the carbon fiber filaments in the surface treatment process, and ensure the high-speed and stable operation of the carbon fiber filaments. It should be noted that in the production process of carbon fiber filaments, the carbon fiber filament surface treatment device of the utility model is arranged on the downstream side of the high-temperature carbonization furnace. The carbon fiber filaments that have just been carbonized at high temperature are brittle, and the guiding process on the wire feed roller 21 is very easy to cause fluffing or even wire breakage. Therefore, it is particularly necessary to arrange the electrolyte spray assembly 3 of the utility model at the position of the wire feed roller 21 of the carbon fiber filament surface treatment device, which can effectively prevent the mechanical damage of the carbon fiber filaments on the wire feed roller 21 and the occurrence of the phenomenon of broken wires winding around the roller. In addition, the electrolyte spray assembly 3 configured in the carbon fiber filament surface treatment device of the utility model has a simple structure, low manufacturing cost, and is very convenient to operate and disassemble. It has certain versatility and can significantly reduce the labor intensity of operators.

[0030] In some embodiments, the drip tube 31 has a plurality of liquid outlets 315 arranged in a line along its axial direction (in a specific embodiment, each liquid outlet 315 is a small hole of Φ0.1 mm constructed on the drip tube 31), and the liquid outlet direction of each liquid outlet 315 forms an angle θ with the horizontal line, see Figure 5 As shown, θ satisfies μ=aθ+bλ+c, where μ is the breakage rate of the carbon fiber on the corresponding spray pipe 31, λ is the average flow velocity of the water flow in the pipe, and a, b, and c are constants, that is, the installation and commissioning process of the electrolyte spray assembly 3 is reasonably adjusted according to the breakage rate μ of the carbon fiber and the average flow velocity λ of the water flow to ensure that the carbon fiber breakage rate can be lower during its use. In a specific embodiment, a=0.0619744207, b=4.3261962162, and c=-1.540534462.

[0031] In some embodiments, the carbon fiber surface treatment device further includes a pumping device (not shown in the figure, not labeled), the pumping end (i.e., the suction port) of the pumping device is below the liquid level of the electrolyte in the electrolytic cell 1, and the pumping end (i.e., the output port) of the pumping device is connected to the liquid inlet pipe 311 of the shower pipe 31. The aforementioned pumping device can be a specific example of a water pump that can withstand the downward view of the electrolyte.

[0032] In this technical solution, the electrolyte in the electrolytic cell 1 is sprayed onto the carbon fiber filaments on the corresponding transmission rollers through a pumping device, and the sprayed electrolyte can flow back into the electrolytic cell 1 under the action of its own weight, ensuring full utilization of the electrolyte while preventing the concentration difference that may exist due to the separate supply of electrolyte for spraying from reducing the etching effect of the electrolyte on the carbon fiber filaments. It can be understood that a filter with a suitable mesh size should be set at the pumping end of the aforementioned pumping device to prevent hair from entering the spraying pipe 31 and blocking each liquid outlet 315.

[0033] See Figure 3 As shown, in some embodiments, a fixed frame 4 is provided on the electrolytic cell 1, and two of the fixed frames 4 are respectively mounted on opposite sides of the electrolytic cell 1. The aforementioned fixed frames 4 can be two metal sheet metal plates, and the bottom ends thereof can be supported and fixed on the end surfaces on opposite sides of the top wall notch of the electrolytic cell 1, and the two ends of the sprinkling pipe 31 are respectively detachably connected to each of the fixed frames 4.

[0034] In this technical solution, both ends of the sprinkling tube 31 are detachably connected to the fixed frame 4, which can facilitate its assembly in the top area of ​​the electrolytic cell 1 on the one hand, and can facilitate the adjustment of the liquid outlet direction of the liquid outlet 315 of the sprinkling tube 31 on the other hand, that is, to reasonably adjust the aforementioned θ.

[0035] Continue to see Figure 3 As shown, in some embodiments, both ends of the shower tube 31 are respectively provided with a threaded column 312 extending along its axial direction, and a nut 313 is threadedly connected to the threaded column 312. A connecting column 41 is fixedly connected to the wall surface of the fixed frame 4, and the connecting column 41 has a accommodating groove (not marked in the figure), and the end surface of the nut 313 away from the shower tube 31 can be accommodated in the accommodating groove. When the nut 313 is driven to rotate along the first rotation direction relative to the threaded column 312, the end surface of the nut 313 away from the shower tube 31 can be stopped and positioned with the bottom wall of the accommodating groove.

[0036] In this technical solution, the nut 313 and the threaded column 312 are threadedly connected. When the nut 313 is rotated along the first rotation direction, the nut 313 will move along the axial direction of the shower tube 31 close to the bottom wall of the accommodating groove until the nut 313 stops and is positioned on the bottom wall of the groove (locking the position of the shower tube 31), so that the shower tube 31 can be assembled without adjusting the distance between the two relatively arranged fixed frames 4. It should be noted that when the nuts 313 at both ends of the shower tube 31 are rotated along the second rotation direction (opposite to the first rotation direction), the two nuts 313 move close to the middle position of the shower tube 31, that is, the axial length of the shower tube 31 becomes shorter. Before assembly, the axial length of the shower tube 31 should not be longer than the distance between the relative end faces of the connecting columns 41 on both sides.

[0037] In terms of specific manufacturing, the aforementioned shower pipe 31 can be made of a hollow stainless steel pipe with holes, and the openings at both ends are sealed and then welded with a bolt.

[0038] In order to facilitate the disassembly and assembly of the shower tube 31 and the adjustment of the liquid outlet direction of the shower tube 31, a handle 314 is provided on the outer tube wall of the shower tube 31, and the operator can apply force to the handle 314 to achieve rotational drive or position movement of the shower tube 31. In another specific embodiment, see Figure 3 As shown, there are two handles 314, which are respectively disposed adjacent to the two ends of the shower tube 31, so that the operator can select a more convenient side for corresponding operation. The handle 314 can be, for example, a tube body welded to the outer tube wall of the shower tube 31, and a sphere can be welded to the free end of the tube body for easy gripping by the operator.

[0039] In a preferred embodiment, both ends of the wire feed roller 21 are rotatably connected between two fixed frames 4; and / or, both ends of the wire outlet roller 22 are rotatably connected between two fixed frames 4. In another preferred embodiment, the carbon fiber surface treatment device also includes a first wire guide roller 23 and a second wire guide roller 24, wherein the first wire guide roller 23 is adjacent to and parallel to the wire feed roller 21, and the second wire guide roller 24 is adjacent to and parallel to the wire outlet roller 22, and the carbon fiber filaments are tensioned below the liquid surface of the electrolyte by the first wire guide roller 23 and the second wire guide roller 24; the first wire guide roller 23 and the second wire guide roller 24 are each rotatably connected between two fixed frames 4 at both ends.

[0040] In this technical solution, the wire feed roller 21, the wire outlet roller 22, the first wire guide roller 23, the second wire guide roller 24 and the electrolyte spray assembly 3 are all arranged on the fixed frame 4, which can ensure the stability of the relative position relationship between the components, and the integrity of the assembly is better, and the assembly is more convenient.

[0041] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0042] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the utility model, and these improvements and variations should also be regarded as the protection scope of the utility model.

Claims

1. A carbon fiber surface treatment device, comprising an electrolytic cell (1) for containing an electrolyte, wherein a wire feed roller (21) and a wire outlet roller (22) are arranged at the top area of ​​the electrolytic cell (1), characterized in that: It also includes an electrolyte spray assembly (3), which is arranged adjacent to the wire feed roller (21) and / or the wire outlet roller (22), and has a spray pipe (31). The electrolyte flowing out of the spray pipe (31) can be sprayed onto the carbon fiber filaments guided on the wire feed roller (21) and / or the wire outlet roller (22).

2. The carbon fiber surface treatment device according to claim 1, characterized in that: The shower pipe (31) has a plurality of liquid outlets (315) arranged at intervals along its axial direction, and an angle θ is formed between the liquid outlet direction of each of the liquid outlets (315) and the horizontal line, and θ satisfies μ=aθ+bλ+c, wherein μ is the breakage rate of the carbon fiber filaments on the corresponding shower pipe (31), λ is the average flow velocity of the water flow in the pipe, and a, b, and c are constants.

3. The carbon fiber surface treatment device according to claim 1, characterized in that: It also comprises a pumping device, the pumping end of the pumping device is below the liquid level of the electrolyte in the electrolytic tank (1), and the pumping end of the pumping device is connected to the liquid inlet pipe (311) of the shower pipe (31).

4. The carbon fiber surface treatment device according to claim 3, characterized in that: A fixed frame (4) is arranged on the electrolytic cell (1), and two fixed frames (4) are respectively mounted on opposite sides of the electrolytic cell (1), and both ends of the shower pipe (31) are respectively detachably connected to each of the fixed frames (4).

5. The carbon fiber surface treatment device according to claim 4, characterized in that: The two ends of the shower tube (31) are respectively provided with a threaded column (312) extending along the axial direction thereof, and a nut (313) is threadedly connected to the threaded column (312). A connecting column (41) is fixedly connected to the wall surface of the fixed frame (4), and the connecting column (41) has an accommodating groove. The end surface of the nut (313) away from the shower tube (31) can be accommodated in the accommodating groove. When the nut (313) is driven to rotate along the first rotation direction relative to the threaded column (312), the end surface of the nut (313) away from the shower tube (31) can be stopped and positioned with the bottom wall of the groove of the accommodating groove.

6. The carbon fiber surface treatment device according to claim 5, characterized in that: A handle (314) is provided on the outer tube wall of the shower tube (31).

7. The carbon fiber surface treatment device according to claim 6, characterized in that: There are two handles (314), and the two handles (314) are respectively arranged adjacent to two ends of the shower tube (31).

8. The carbon fiber surface treatment device according to claim 3, characterized in that: The two ends of the wire feeding roller (21) are rotatably connected between the two fixed frames (4); and / or the two ends of the wire outlet roller (22) are rotatably connected between the two fixed frames (4).

9. The carbon fiber surface treatment device according to claim 4, characterized in that: It also includes a first guide roller (23) and a second guide roller (24), wherein the first guide roller (23) is adjacent to and parallel to the inlet roller (21), and the second guide roller (24) is adjacent to and parallel to the outlet roller (22), and the carbon fiber filaments are tensioned below the liquid surface of the electrolyte by the first guide roller (23) and the second guide roller (24).

10. The carbon fiber surface treatment device according to claim 9, characterized in that: The first wire guide roller (23) and the second wire guide roller (24) are rotatably connected at both ends between two fixed frames (4).

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