Carbon fiber precursor surface electrolytic treatment device

Abstract

The utility model relates to the technical field of precursor surface treatment, in particular to a carbon fiber precursor surface electrolytic treatment device, which comprises an electrolytic bath, an electrolytic tank, a first electrode and a second electrode, the cover plate is arranged above the electrolytic bath and used for isolating the internal space of the electrolytic bath; wherein the electrolytic tank is provided with two side plates in the length direction, the tops of the two side plates are each provided with a plurality of protrusions, the protrusions are arranged at equal intervals in the length direction of the side plates, the side, facing the electrolytic tank, of the cover plate abuts against the protrusions, and a communicating cavity is formed between every two protrusions; the conduction cavity is defined by the side faces, opposite to each other, of the adjacent protrusions, the top faces of the side plates and the abutting face of the cover plate. Gas generated by electrolytic reaction can be discharged in time through a plurality of conducting cavities on the two sides, so that the electrolytic treatment process of the carbon fiber precursors is prevented from being influenced, and the continuity and high efficiency of electrolytic treatment are ensured; and the cover plate is arranged above the electrolytic bath, so that the internal space of the electrolytic bath can be effectively isolated, and the stability of electrolytic treatment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of precursor surface treatment, in particular to a carbon fiber precursor surface electrolysis treatment device. Background Art

[0002] Carbon fiber composites have low density, high strength, high elastic modulus and excellent corrosion resistance. They are widely used in aerospace, wind turbine blades, rail transportation and other fields. In order to ensure the performance and quality of carbon fiber materials, the carbon fiber precursor needs to be subjected to surface electrolysis treatment during the production process to increase the hydrophilicity, adhesion and activity of the carbon fiber precursor, improve its strength, hardness, flexibility, wear resistance, corrosion resistance and other properties, and ensure that it meets the design requirements.

[0003] In the related art, electrolysis equipment is usually used to carry out surface treatment of carbon fiber precursor, by arranging electrode plates at the bottom of the electrolytic cell, electrolyte is arranged in the electrolytic cell, traction rollers are arranged on both sides, and a cover plate is arranged on the top, the carbon fiber precursor is pulled into the electrolytic cell by the traction action of the traction rollers, and the surface of the carbon fiber precursor is electrolytically treated after passing through the electrolyte; although the above technical scheme can realize the continuous production process of surface electrolysis treatment, during the production process, due to the sealing effect of the cover plate on the electrolytic cell, the gas generated during the electrolysis process is difficult to be discharged in time, and bubbles are formed and adsorbed on the surface of the carbon fiber precursor, making the electrolysis treatment insufficient, and removing all or part of the cover plate will form an exposed area of ​​the electrolytic cell, which is not conducive to safe production.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of implication that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a device for electrolytic treatment of the surface of carbon fiber precursor, to ensure the timely discharge of gas during the electrolytic treatment process, and to ensure a continuous, stable and efficient production process of the surface electrolytic treatment.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for electrolytic treatment of the surface of carbon fiber precursor, comprising:

[0007] An electrolytic cell is arranged on a frame;

[0008] A cover plate is disposed above the electrolytic cell to isolate the inner space of the electrolytic cell;

[0009] The electrolytic cell is provided with two side plates along the length direction, and a plurality of protrusions are provided on the top of the two side plates. The protrusions are arranged at equal intervals along the length direction of the side plates. The cover plate abuts against the protrusions on the side facing the electrolytic cell, and there is a conducting cavity between every two protrusions. The conducting cavity is formed by the side surfaces of the adjacent protrusions arranged opposite to each other, the top surface of the side plates and the abutting surface of the cover plate.

[0010] Furthermore, the heights of the protrusions on the two side panels are consistent, so that the cover plate is arranged horizontally.

[0011] Furthermore, a plurality of reinforcing ribs are vertically fixed to one side of the two side plates facing the outside of the electrolytic cell, and the reinforcing ribs are arranged in sequence along the length direction of the side plates.

[0012] Furthermore, a bottom plate is arranged between the two side plates of the electrolytic cell, and a plurality of bases for carrying electrode plates are arranged on the side of the bottom plate facing the inside of the electrolytic cell. The bases are symmetrically arranged at equal intervals and located on both side edges of the bottom plate close to the two side plates.

[0013] Furthermore, a liquid inlet and a liquid outlet are provided on the bottom plate, the liquid inlet and the liquid outlet are respectively located at two ends of the bottom plate, and the liquid inlet and the liquid outlet form an electrolyte circulation.

[0014] Furthermore, a diverter plate is provided at one end of the bottom plate close to the liquid inlet, and a plurality of diverter holes are provided on the side of the diverter plate facing the liquid outlet, and the diverter holes are arranged through.

[0015] Furthermore, the diversion holes are arranged in sequence in the horizontal direction and are arranged in a staggered manner in the height direction.

[0016] Furthermore, the cover plate is divided in the width direction to form a plurality of connecting plates, and a plurality of U-shaped plates are provided on the side of the cover plate away from the interior of the electrolytic cell. The U-shaped plates are arranged along the length direction of the cover plate and are located between two adjacent connecting plates, and the two side edges of the U-shaped plates are bent to respectively connect the connecting plates on both sides.

[0017] Furthermore, the cover plate is provided with a plurality of reinforcing plates along the width direction, and the reinforcing plates are connected to each of the connecting pieces and each of the U-shaped plates.

[0018] Furthermore, a driving portion for driving the cover plate to move relatively closer to or away from the electrolytic cell is provided on a side of the reinforcing plate located at both ends of the cover plate away from the connecting plate.

[0019] The beneficial effects of the utility model are as follows: the utility model provides protrusions on the side plates on both sides of the electrolytic cell to form a contact effect with the cover plate, so that a conduction cavity is formed between the electrolytic cell and the cover plate, and the gas generated by the electrolysis reaction can be discharged in time through a plurality of conduction cavities on both sides, thereby avoiding affecting the electrolysis treatment process of the carbon fiber precursor and ensuring the continuity and efficiency of the electrolysis treatment; and the cover plate is arranged above the electrolytic cell, which can effectively isolate the internal space of the electrolytic cell, thereby avoiding the formation of an exposed area and ensuring the stability of the electrolysis treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a front view of the device for electrolytic treatment of the surface of carbon fiber precursor in the embodiment of the utility model;

[0022] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the structure of the device for electrolytic treatment of the surface of carbon fiber precursor in an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the electrolytic cell in the embodiment of the utility model;

[0025] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the cover plate in the embodiment of the utility model;

[0027] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0028] Figure numerals: 10, electrolytic cell; 11, side plate; 11a, protrusion; 11b, conduction cavity; 11c, reinforcing rib; 12, bottom plate; 12a, liquid inlet; 12b, liquid outlet; 13, base; 14, diverter plate; 14a, diverter hole; 20, frame; 30, cover plate; 31, connecting plate; 32, U-shaped plate; 33, reinforcing plate; 40, driving unit. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] like Figures 1 to 7 The carbon fiber precursor surface electrolysis treatment device shown comprises:

[0033] The electrolytic cell 10 is arranged on a frame 20;

[0034] The cover plate 30 is disposed above the electrolytic cell 10 to isolate the inner space of the electrolytic cell 10;

[0035] The electrolytic cell 10 is provided with two side plates 11 along the length direction, and a plurality of protrusions 11a are provided on the top of the two side plates 11. The protrusions 11a are arranged at equal intervals along the length direction of the side plates 11. The cover plate 30 abuts against the protrusions 11a on the side facing the electrolytic cell 10, and there is a conducting cavity 11b between every two protrusions 11a. The conducting cavity 11b is formed by the side surfaces of adjacent protrusions 11a, the top surface of the side plates 11 and the abutting surface of the cover plate 30.

[0036] The utility model provides protrusions 11a on the side plates 11 on both sides of the electrolytic cell 10 to form a contact effect with the cover plate 30, so that a conducting cavity 11b is formed between the electrolytic cell 10 and the cover plate 30. The gas generated by the electrolytic reaction can be discharged in time through the several conducting cavities 11b on both sides, thereby avoiding affecting the electrolytic treatment process of the carbon fiber precursor and ensuring the continuity and efficiency of the electrolytic treatment. The cover plate 30 is arranged above the electrolytic cell 10, which can effectively isolate the internal space of the electrolytic cell 10, thereby avoiding the formation of an exposed area and ensuring the stability of the electrolytic treatment.

[0037] It should be noted that the electrode plate is arranged in the internal space of the electrolytic cell 10 and is connected to the anode power supply. The carbon fiber precursor enters the electrolytic cell 10 from one end of the electrolytic cell 10 and is then led out after electrolytic treatment. When surface electrolytic treatment is performed, the carbon fiber precursor serves as the cathode and the electrode plate serves as the anode, thereby forming an electrolytic reaction to complete the surface treatment process.

[0038] On the basis of the above embodiment, the heights of the protrusions 11 a on the two side plates 11 are consistent, so that the cover plate 30 is arranged horizontally, thereby preventing the unstable position of the cover plate 30 from affecting the normal operation in the electrolytic cell 10 .

[0039] On the basis of the above embodiment, a plurality of reinforcing ribs 11c are vertically fixed on one side of the two side plates 11 facing the outside of the electrolytic cell 10. The reinforcing ribs 11c are arranged in sequence along the length direction of the side plates 11. The reinforcing ribs 11c arranged at intervals can strengthen the side plates 11 and effectively alleviate deformation of the side plates 11 after long-term use.

[0040] On the basis of the above embodiment, a bottom plate 12 is arranged between the two side plates 11 of the electrolytic cell 10, and a plurality of bases 13 for supporting electrode plates are arranged on the side of the bottom plate 12 facing the inside of the electrolytic cell 10. The bases 13 are symmetrically arranged at equal intervals and are located at the edge positions on both sides of the bottom plate 12 close to the two side plates 11. The electrode plates inside the electrolytic cell 10 are supported and fixed by the symmetrically arranged bases 13 to prevent the position of the electrode plates in the electrolytic cell 10 from changing, thereby ensuring the smooth progress of the electrolytic reaction and ensuring the stability of the electrolytic treatment of the surface of the carbon fiber precursor.

[0041] On the basis of the above embodiment, a liquid inlet 12a and a liquid outlet 12b are provided on the bottom plate 12, and the liquid inlet 12a and the liquid outlet 12b are respectively located at the two ends of the bottom plate 12, and the liquid inlet 12a and the liquid outlet 12b form an electrolyte circulation; the electrolyte in the electrolytic cell is in a circulating flow state, preventing the hair generated by electrolysis from forming deposition, avoiding pollution of the electrolyte, ensuring the quality of surface treatment, and the circulating flow method prevents the electrolyte from excessive accumulation, saving energy and reducing emissions.

[0042] On the basis of the above embodiment, a diverter plate 14 is provided on one end of the bottom plate 12 close to the liquid inlet 12a, and a plurality of diverter holes 14a are provided on the side of the diverter plate 14 facing the liquid outlet 12b, and the diverter holes 14a are provided through-goingly; through the setting of the diverter plate 14, the impact force of the electrolyte entering the electrolytic cell 10 from the liquid inlet 12a on the carbon fiber precursor can be effectively alleviated, and the carbon fiber precursor is protected while ensuring the electrolysis effect, thereby reducing the possibility of the carbon fiber precursor breaking during the electrolysis process, and through the setting of a plurality of diverter holes 14a, the surface area of ​​the electrolyte directly acting on the carbon fiber precursor is increased, thereby ensuring the quality of the electrolysis.

[0043] On the basis of the above embodiment, the diverter holes 14a are arranged in sequence in the horizontal direction and staggered in the height direction, thereby effectively increasing the divergence direction and position of the electrolyte after passing through the diverter holes 14a, further reducing the impact force, and increasing the area of ​​action of the electrolyte.

[0044] On the basis of the above-mentioned embodiment, the cover plate 30 is divided into a plurality of connecting pieces 31 in the width direction, and a plurality of U-shaped plates 32 are arranged on the side of the cover plate 30 away from the inside of the electrolytic cell 10. The U-shaped plates 32 are arranged along the length direction of the cover plate 30 and are located between two adjacent connecting pieces 31. The two side edges of the U-shaped plates 32 are bent to respectively connect the connecting pieces 31 on both sides. The cover plate 30 is formed by connecting a plurality of connecting pieces 31, thereby reducing the difficulty of forming the cover plate 30. When the cover plate 30 is damaged, the connecting piece 31 at the damaged position can be replaced separately, thereby reducing the maintenance cost. The connecting pieces 31 are connected by arranging the U-shaped plates 32, thereby forming an effective connection and reinforcement effect on the joints of the connecting pieces 31, thereby ensuring the strength of the cover plate 30 formed by splicing.

[0045] Based on the above embodiment, the cover plate 30 is provided with a plurality of reinforcing plates 33 along the width direction, and the reinforcing plates 33 are connected to each connecting plate 31 and each U-shaped plate 32. By arranging a plurality of additional reinforcing plates 33 in the width direction, the connection between the U-shaped plate 32 and the connecting plate 31 is further strengthened.

[0046] On the basis of the above-mentioned embodiment, a driving part 40 for driving the cover plate 30 to be relatively close to or away from the electrolytic cell 10 is provided on the side of the reinforcing plate 33 located at both ends of the cover plate 30 away from the connecting plate 31. The driving action of the driving part 40 can open or close the cover plate 30 relative to the electrolytic cell 10, thereby leaving enough cleaning space when the electrolytic cell 10 needs to be cleaned; wherein, the driving part 40 can be set to the form of a gantry with a cylinder, which is not specifically limited here, and it is sufficient to enable the cover plate 30 to move stably.

[0047] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for electrolytic treatment of the surface of carbon fiber precursor, characterized in that: include: An electrolytic cell is arranged on a frame; A cover plate is disposed above the electrolytic cell to isolate the inner space of the electrolytic cell; The electrolytic cell is provided with two side plates along the length direction, and a plurality of protrusions are provided on the top of the two side plates. The protrusions are arranged at equal intervals along the length direction of the side plates. The cover plate abuts against the protrusions on the side facing the electrolytic cell, and there is a conducting cavity between every two protrusions. The conducting cavity is formed by the side surfaces of the adjacent protrusions arranged opposite to each other, the top surface of the side plates and the abutting surface of the cover plate.

2. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 1, characterized in that: The heights of the protrusions on the two side plates are consistent, so that the cover plate is arranged horizontally.

3. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 1, characterized in that: A plurality of reinforcing ribs are vertically fixed to one side of the two side plates facing the outside of the electrolytic cell, and the reinforcing ribs are arranged in sequence along the length direction of the side plates.

4. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 1, characterized in that: A bottom plate is arranged between the two side plates of the electrolytic cell, and a plurality of bases for carrying electrode plates are arranged on one side of the bottom plate facing the inside of the electrolytic cell. The bases are symmetrically arranged at equal intervals and located at the two side edges of the bottom plate close to the two side plates.

5. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 4, characterized in that: The bottom plate is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively located at two ends of the bottom plate, and the liquid inlet and the liquid outlet form an electrolyte circulation.

6. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 5, characterized in that: A diverter plate is arranged on one end of the bottom plate close to the liquid inlet, and a plurality of diverter holes are arranged on the side of the diverter plate facing the liquid outlet, and the diverter holes are arranged through.

7. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 6, characterized in that: The diversion holes are arranged in sequence in the horizontal direction and arranged in a staggered manner in the height direction.

8. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 1, characterized in that: The cover plate is divided into a plurality of connecting plates in the width direction, and a plurality of U-shaped plates are arranged on the side of the cover plate away from the inside of the electrolytic cell. The U-shaped plates are arranged along the length direction of the cover plate and are located between two adjacent connecting plates, and the two side edges of the U-shaped plates are bent to respectively connect the connecting plates on both sides.

9. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 8, characterized in that: The cover plate is provided with a plurality of reinforcing plates along the width direction, and the reinforcing plates are connected to each of the connecting pieces and each of the U-shaped plates.

10. The device for electrolytic treatment of the surface of carbon fiber precursor according to claim 9, characterized in that: A driving part for driving the cover plate to be relatively close to or away from the electrolytic cell is arranged on one side of the reinforcing plate located at both ends of the cover plate away from the connecting plate.

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