30 results about "Carbon filaments" patented technology

The filament count of carbon fiber tows is increased by spreading and merging the carbon filaments of a first tow with the carbon filaments of a second tow. The carbon filaments of the first and second tows are spread apart using a gas stream. The spread tows are aligned with each other and contact each other as they pass over the grid in the presence of the same or different gas stream, thereby forming entangled tows. The entangled tows are then formed into a combined tow. The modulus and denier of the carbon filaments in the first and second tows can be the same, or they can be altered to provide a combined tow having a wide range of filament counts and filament combinations.

The utility model discloses a carbon fiber winding device, including cross -motion mechanism, winding mechanism, yarn spreading mechanism etc. The spacing roller of yarn spreading mechanism, deflection roller, flat roll cross -setting, cooperate cross -motion mechanism servo drive screw rod subassembly, realize different K number carbon silk multi -angle tension regulation and accurate flattening, evenly cover 100-500mm bobbin, and winding mechanism passes through the slidable upper slide and the winding shaft recess snap, and adapts to multi -specification bobbin, and yarn spreading roller subassembly matches different carbon silk technology. Servo motor drive, bearing low friction rotation and sensor stroke protection promote the stability of operation, and the clamping of silk piece subassembly, button board etc. Enhance the operation convenience and equipment rigidity. The device solves the problem of traditional equipment tension instability, poor versatility etc., reduces the scrap rate, and improves the winding efficiency, and is suitable for the precision production of high -end equipment manufacturing field high -performance carbon fiber.

The invention relates to the technical field of carbon fiber production tension monitoring, in particular to an online tension monitoring system suitable for a carbon fiber production process, which comprises the following components: a tension detection unit, which comprises GT-S1001B, GT-S1001C, GT-S1001D and GT-S1003 tensiometers arranged at outlets of different temperature zones of an oxidation furnace, the GT-S1004 tensiometer is arranged at an outlet of the low-temperature carbonization furnace, and the GT-S1005 tensiometer is arranged at an outlet of the high-temperature carbonization furnace. According to the on-line tension monitoring system suitable for the carbon fiber production process, the tension of the carbon filaments at different positions is continuously monitored on line, and the process is adjusted in time, so that on one hand, related detection indexes, including strength, modulus, density and the like, of the pre-oxidized filaments and the carbon filaments can be regulated and controlled; on the other hand, the appearance quality of the carbon filaments can be improved, and broken filaments, split filaments and other phenomena are reduced.

The invention relates to the technical field of carbon filament conveying, and discloses an anti-crossing and anti-friction carbon filament conveying device and method based on carbon fiber cloth, the anti-crossing and anti-friction carbon filament conveying device based on the carbon fiber cloth comprises a frame, a plurality of supports arranged at equal intervals in the front-back direction of the frame, and a plurality of bases arranged at equal intervals in the length direction of the supports; the conveying mechanisms are symmetrically arranged on the bases, and each conveying mechanism comprises a rotating shaft rotationally arranged on the corresponding base, a spline shaft fixed to the corresponding rotating shaft, a beam barrel shaft slidably connected to the surface of the corresponding spline shaft in a sleeving mode through the corresponding spline, a yarn barrel installed on the outer surface of the beam barrel shaft and carbon filaments wound around the surface of the yarn barrel. The beam cylinder shaft and the yarn cylinder are pushed to move in the axial direction of the spline shaft, so that the axial movement is dynamically matched with the spiral winding deviation of the carbon filaments, the filament outlet position is corrected in real time, the filament outlet point of the carbon filaments can be kept at a relatively fixed position all the time, and friction between the carbon filaments and the inner wall of a guide hole of the yarn guide frame is reduced.

Windscreen wiper motor (10), comprising a housing (11), wherein an armature shaft (18) with a commutator (30) is arranged in the housing (11), the commutator interacting with carbon elements (31) arranged in the area of ​​a carbon retaining plate (35), which are electrically connected via electrical connections (36), preferably in the form of carbon strands, to a power supply for the windscreen wiper motor (10) via an interference suppression device (40), wherein the interference suppression device (40) is arranged at least substantially in an interference suppression housing (65) which is connected to the carbon retaining plate (35), wherein the interference suppression device (40) is at least indirectly connected to at least one connector connection element (50) which can be connected to connector contacts on a connector area (27) of the housing (11) which serve for contacting vehicle-side mating connectors,and wherein the at least one connector element (50) is fixedly received in its end position in the interference suppression housing (65), characterized in that the at least one connector element (50) is guided in a mounting direction when inserted into the interference suppression housing (65) by guide elements (72, 73) and is fixed in the end position by a snap-fit ​​connection in the interference suppression housing (65), and that the guide elements (72, 73) have extensions projecting from a base (71) of the interference suppression housing (65) in the direction of the connector element (50), which project positively into the opening cross-section of the connector element (50).

The utility model discloses a carbon filament take-up machine gear disc anti-tooth-disengaging mechanism, and belongs to the technical field of carbon fiber production equipment. The motor wheel set capable of swinging is arranged, the motor wheel set rotates and swings around a long shaft through limitation of the long shaft in the installation process, the tooth gap between a gear disc and a motor gear can be conveniently adjusted, an arc-shaped groove is formed in an installation base, and a locking screw used for locking rotation of the installation base is arranged in the arc-shaped groove; the position of the mounting base can be fixed after the tooth gap is adjusted, meanwhile, the locking screw is arranged in the arc-shaped groove so that the mounting base can be limited to be disengaged from the side away from the gear disc, and therefore the idle gear and the peripheral gear teeth of the gear disc can be engaged all the time without being disengaged.

The invention relates to a preparation method of a BMC (bulk molding compound) composite material based on pyrolyzed recycled carbon fibers, which comprises the following steps: pyrolyzing a pretreated waste carbon fiber composite material in an inert atmosphere to obtain recycled carbon fibers. The method comprises the following steps: ultrasonically cleaning recycled carbon fibers for 20-40 minutes by using acetone, performing vacuum drying, impregnating the recycled carbon fibers for 20-40 minutes by using a 1-3wt% silane coupling agent, and drying to obtain pretreated recycled carbon fibers; the recycled carbon fibers are mixed with an epoxy resin system according to the proportion of 30-45 wt% to prepare a BMC material body. And carrying out compression molding on the BMC material body to obtain the BMC composite material. According to the method, nitrogen protection, acetone ultrasonic cleaning and silane coupling agent activation are adopted, a proper epoxy resin system is selected, and the temperature difference between an upper mold and a lower mold is controlled, so that the recovered carbon filaments are effectively re-compounded. On the basis, the performance of the recycled carbon fibers is further improved by combining four procedures of compound catalytic liquid pretreatment, segmented slow cooling, low-temperature plasma decoking and nano coating repairing.

A method for producing N-type nanocarbon fibers or strips according to the present invention includes: a first step for heating at least a portion of a nanocarbon fiber or strip including a residue of a super acid solution; and a second step for doping a heated portion of the nanocarbon fibers or strips with an N-type dopant.

The automatic carbon fiber yarn winding equipment comprises a yarn roller transport vehicle, a carbon yarn guiding unit, a carbon yarn traction unit, a carbon yarn winding unit and a yarn frame transport vehicle, the yarn roller transport vehicle comprises a sub-control box, a yarn roller air expansion shaft, a carbon yarn placing platform and a carbon yarn pressing mechanism, and the middle of a transport vehicle main frame is connected with the sub-control box; the top of the sub-control box is connected with twelve wire roller air expansion shafts, each wire roller air expansion shaft is controlled by a servo motor, a carbon wire guide column is arranged between the upper row of wire roller air expansion shafts and the lower row of wire roller air expansion shafts, a carbon wire placing platform is arranged on the side, facing the wire outlet direction, of the transport vehicle main frame, and the carbon wire placing platform is connected with a carbon wire pressing mechanism facing the wire outlet direction. A carbon filament guide unit is arranged on the side, facing the filament outlet direction, of the filament roller transport vehicle.

The application belongs to the technical field of pultruded carbon plate manufacturing, and particularly relates to a carbon fiber intelligent creel with a fiber filtering system, which comprises a creel body, a cavity is arranged on the creel body, a negative pressure device is arranged on the top wall of the creel body and communicates with the inside of the cavity, a plurality of drum hanging shafts are arranged in the cavity, a discharge hole, a breather and a switch door are arranged on one side wall of the cavity, a fiber filter is arranged on the creel body outside the cavity and corresponds to each discharge hole, and a filter screen is arranged outside the cavity and corresponds to the breather; the application solves the problems that dust on the fiber is brushed off by installing a brush on the production line, the dust diffuses in the workshop, and scraps (fluff, carbon filaments) are generated in the process of releasing the untreated fiber from the drum, thereby causing the air quality in the workshop to decrease.

The utility model relates to the technical field of arrow shaft manufacturing, in particular to a variable-diameter carbon-coated aluminum arrow shaft which is provided with an aluminum pipe, a carbon fiber layer is arranged on the outer edge of the aluminum pipe, and the carbon fiber layer is sequentially provided with a first cylindrical section, a first circular truncated cone section, a second cylindrical section, a second circular truncated cone section and a third cylindrical section. The carbon fiber layer comprises a spiral winding carbon fiber layer arranged inside and a rolled carbon fiber layer arranged outside. By arranging the spirally wound carbon fiber layer and the rolled carbon fiber layer, the strength of the arrow shaft is improved, the spirally wound carbon fiber layer enables the carbon filaments to be distributed in the transverse direction and the longitudinal direction, and in the flying process of the arrow shaft, the transversely distributed carbon filaments can enhance the transverse external force resisting capacity of the arrow shaft; the longitudinally distributed carbon filaments can improve the strength of the arrow shaft in the axial direction and are not prone to tensile deformation or breakage in the length direction, the impact resistance of the arrow shaft can be enhanced through the multi-layer smooth filament rolling structure, the arrow shaft is protected against damage, and normal use and flight performance of the arrow are guaranteed.

The utility model belongs to the auxiliary field of waste silk collection in the start-stop and abnormal process of carbon fiber and precursor production, and particularly relates to an automatic waste silk collector in the carbon fiber production process. The device is composed of a set of counter-rotating type roller shafts, gears, a variable frequency motor, a cooling induced draft fan, a ton bag fixing device, an overall framework and a movable pulley block, a clamp-shaped protective cover is installed at the inlet end of each counter-rotating type roller shaft for protection, the situation that hands make contact with the roller shafts to be wound in, and mechanical damage is caused is prevented, and waste silk collection is facilitated through openings in clamp-shaped strips. Through the synergistic effect of mechanical transmission and wind power guiding, the problems of winding and scattering in the carbon fiber waste silk collecting process are effectively solved, and the device has the remarkable advantages of being high in collecting efficiency, high in equipment stability, convenient and fast to operate and maintain and the like.

A low-loss high-precision carbon filament drafting steering device comprises a bottom supporting frame, a frame stabilizing component, a side edge supporting plate, a direction adjusting plate, a carbon filament drafting roller, a filament penetrating hole plate and a drafting transmission mechanism, and through the design of the direction adjusting plate and an adjusting fixing piece, accurate adjustment of drafting force within a large range is achieved. The problems of winding and abrasion of the carbon filaments in the transmission process are effectively solved. Due to the inclined side edge structure, the carbon filaments can be naturally separated, mutual overlapping and winding are avoided, and the orderliness of carbon filament conveying is guaranteed. The adaptability and flexibility of the equipment are remarkably improved, the universality and reliability of the equipment in different production environments are improved, and greater convenience and guarantee are provided for production of enterprises.

The utility model relates to the technical field of fiber sizing, and discloses an electric hydraulic lifting fiber sizing device with a heat tracing band, which comprises a bottom plate, a first telescopic rod, a mounting seat, a first hydraulic cylinder, a second hydraulic cylinder, an immersion tank, a second telescopic rod, a free roller, an immersion roller, a driving roller and a compression roller. According to the utility model, the immersion tank and the mounting seat can be freely lifted according to use requirements, so that the immersion depth of tows can be adjusted, meanwhile, during initial start-up, the carbon filament winding operation is more convenient, the temperature of slurry in the immersion tank is ensured, the product quality is ensured, the angle of the guide plate is flexibly adjusted, dropped and splashed slurry is collected, and the production efficiency is improved. And the slurry is prevented from overflowing. The heights of the waste gas cover, the air extractor and the waste gas pipe can be flexibly adjusted, and a good collecting effect is guaranteed under different conditions. And the heat tracing band can effectively keep the temperature of the slurry in the immersion tank when the room temperature is low, so that the practicability of the equipment and the use experience of a user are improved.

The invention discloses a high-performance mesophase pitch-based carbon fiber capable of being used for weaving and a preparation method of the high-performance mesophase pitch-based carbon fiber. Low-carbon filaments are sequentially subjected to active filament unwinding, four-temperature-zone carbonization treatment, electrolysis, water washing, primary drying, sizing and secondary drying treatment on a high-temperature treatment production line; and the high-performance mesophase pitch-based carbon fiber capable of being used for weaving is obtained after winding and winding. Starting from the deep carbon fiber carbonization principle, the carbon fiber carbonization process is controlled, and the weaving manufacturability is improved on the premise that the fiber strength performance is not reduced.

This invention discloses a test method for simulating carbonization process to verify the thermogravimetric properties of spinning oil, comprising the following steps: Step S1, oiling the slurry-free carbon fiber; Step S2, designing a corresponding TGA test program based on the actual carbonization production process of carbon fiber; designing a corresponding TGA test program based on the segmented temperature range, heating rate, and atmosphere conditions of the actual carbonization production process of carbon fiber; Step S3, conducting thermogravimetric performance testing using a TGA tester; cutting the oiled slurry-free carbon fiber sample to a preset length and starting the tester for thermogravimetric testing; Step S4, verifying the thermogravimetric properties of the spinning oil based on the test results; determining whether the thermal stability of the spinning oil meets the requirements of the carbonization production process based on the thermogravimetric performance parameters obtained from the thermogravimetric test. This invention uses slurry-free carbon fiber as the carrier of the spinning oil, which is completely consistent with the application scenario of the oil in actual carbon fiber production, accurately reflecting the thermogravimetric change law of the spinning oil in the actual carbonization process.

The invention discloses a double-reel automatic reel changing device for a carbon filament winding machine. The double-reel automatic reel changing device comprises a first reel assembly, a second reel assembly, a turret roller assembly and a control unit. The actions of the first reel assembly, the second reel assembly and the turret roller assembly are intelligently coordinated through the control unit, automatic switching and continuous winding of double reel stations are achieved, the tensioning and loosening states of the two air expansion shafts are alternately controlled through the valve body, when one air expansion shaft is located at the winding station, the other air expansion shaft is located at the loading and unloading station, and when reels are replaced, automatic switching and continuous winding are achieved. A third motor drives the turret roller to rotate, and a proximity switch and an induction sheet are matched to realize accurate positioning, so that the accumulative error of an electric control system is effectively eliminated, and the consistency of stations after roll replacement each time is ensured; the winding defects of edge collapse, shoulder protruding and the like are effectively prevented, and the forming quality and the product yield of carbon fiber winding are greatly improved.

The application relates to a photo-thermal hair dryer, which comprises a shell, a main control board and a fan installed in the shell; the photo-thermal hair dryer comprises a comb head and a handle, and the shell is correspondingly divided into a comb head shell and a handle shell; one or more lamp tubes electrically connected with the main control board are installed in the comb head shell; the lamp tubes are tungsten filament lamp tubes and / or carbon filament lamp tubes, and the light waves emitted by the lamp tubes contain near-infrared light; the comb head shell is provided with a group of comb teeth, the comb teeth are used for dividing hair into small parts and suspending the hair to form a hair area; the comb head shell is provided with one or more ventilation channels; the fan, the outer part of the lamp tubes and the ventilation channels are in air flow communication; and the ventilation channels are in air flow communication with the hair area during use; under the action of the fan, cold air flows to the lamp tubes and is heated into hot air, the hot air passes through the hair area to perform hot air drying or blows away the moisture on the surface of the hair and then flows into the ventilation channels; the near-infrared light emitted by the lamp tubes irradiates the hair area at a short distance to perform near-infrared auxiliary drying.

The invention discloses a carbon fiber uniaxial precursor and a carbon fiber uniaxial precursor constant weight control method, and belongs to the field of carbon fibers. The carbon fiber uniaxial precursor meets the formula:; wherein Y is the fixed weight of the carbon fiber single-axis precursor, N is the number of axes of carbon filaments produced by the carbon fiber single-axis precursor, X is the fixed weight of the carbon fiber single-axis carbon filaments, A1 is the real-time carbon yield, K is a multi-parameter correction factor, and the multi-parameter correction factor K is the product of a filament withdrawing tension fluctuation coefficient KT and a precursor filament density variation coefficient K sigma; wherein when the yarn retreating tension fluctuation T is smaller than or equal to 3 cN, the yarn retreating tension fluctuation coefficient KT is 1.0, and on the basis that the yarn retreating tension fluctuation T is 3 cN, the KT is reduced by 0.05 every time the yarn retreating tension fluctuation T exceeds 1 cN; when the density variation coefficient sigma of the original silk yarn is smaller than or equal to 1.5%, K sigma is equal to 1.0, and on the basis that sigma is 1.5%, K sigma is reduced by 0.02 when the sigma exceeds 0.1%. The method can effectively improve the whole-axis rate of the carbon fiber carbon filaments in the batch preparation process.

The utility model relates to a multi-light-source therapeutic apparatus. The multi-light-source therapeutic apparatus comprises a shell, a main control board installed in the shell, and light sources, a power supply assembly, a fan and a semiconductor refrigeration part which are electrically connected with the main control board, the semiconductor refrigeration piece comprises a semiconductor particle layer in the middle, a hot face and a cold face, the front end face of the therapeutic apparatus forms a light outlet. The light source comprises an IPL light source and further comprises a tungsten filament light source and / or a carbon filament light source. The light outlet is formed by a transparent substrate mounted in the front end of the shell; the cold surface of the semiconductor refrigeration part is connected with the transparent substrate in a heat transfer manner so as to refrigerate the transparent substrate, or the transparent substrate is directly used as the cold surface of the semiconductor refrigeration part; light generated by the light source penetrates through the light outlet and then acts on the skin for beautifying or treatment.

The purpose of this invention is to provide a carbon filament heater that utilizes a carbon filament heating element with fewer broken wires and high flexibility on its surface. The carbon filament heater of this invention is characterized by housing a carbon filament heating element that generates heat through an electrical supply within a glass component. This carbon filament heating element is formed by weaving multiple bundles of carbon fiber monofilaments into a thread, and the degree of graphitization of the carbon filament heating element is 0.2 or higher and 0.6 or lower.

The utility model discloses an efficient cooling structure with a filtering function, a housing is arranged on the outer side of an incineration device, a cooling cavity is formed between the housing and the incineration device, an air inlet and an air outlet which are communicated with the cooling cavity are formed in the housing, a filtering assembly comprises at least one filtering unit, and each filtering unit comprises a frame, a filtering layer and a locking piece. The frame is arranged at the air inlet of the housing, the filter layer is connected to the frame through a locking piece and covers the air inlet, the cooling assembly comprises a cooling fan and an air pipe, one end of the air pipe is arranged at the air outlet of the housing, and the other end of the air pipe is connected with the cooling fan. Compared with the prior art, the low-temperature gas can continuously make contact with the incineration device, the cooling effect on the incineration device is guaranteed, the filter unit can prevent carbon filaments in the air from entering the cooling fan to affect normal operation of the cooling fan, the filter unit can be rapidly started, or the filter layer can be disassembled and assembled, and cleaning and replacement are convenient.

The invention discloses a carbon fiber plate splicing process and a carbon fiber plate.The carbon fiber plate splicing process comprises the following steps that laser cutting is conducted on a first prepreg and a second prepreg so that a first plate and a second plate can be formed, and the carbon filament modulus of the first prepreg and the carbon filament modulus of the second prepreg are different; the first plate and the second plate are spliced on the bottom plate, so that a middle transition layer is formed on the bottom plate; the cover plate is compounded on the middle transition layer, and the cover plate, the middle transition layer and the bottom plate are subjected to hot pressing to form a semi-finished product; and performing laser cutting on the semi-finished product to form a finished product. The cover plate and the bottom plate are compounded on the first plate piece and the second plate piece correspondingly, so that the surface of the carbon fiber plate manufactured through the technology does not have the appearance problems of splicing marks and the like, and the attractiveness of the carbon fiber plate is improved.

The application discloses a method for improving the surface roughness of dry-jet wet-spun polyacrylonitrile filaments. The method comprises the following steps: after water washing, the expanded fibers are subjected to surface etching in an etching solution, the mass ratio of H2SO4 to DMSO in the etching solution is 4-5:10, the etching tank temperature is 24-30 DEG C, the etching time is 2-4.3 s, then the fibers subjected to surface etching are subjected to water washing, drawing, drying, densification and steam drawing, and finally the polyacrylonitrile filaments with high surface roughness are prepared. The application improves the surface roughness of the filaments by surface etching of the water-containing expanded PAN filaments, prepares the PAN filaments with deep surface gullies, and then improves the surface roughness of the carbon filaments, improves the coupling ability of the dry-jet wet-spun carbon fibers and resin materials, and expands the application scenarios.

The present application relates to the field of composite materials, and relates to a pre-embedded metal joint composite wing surface structure and a laying method. The pre-embedded metal joint composite wing surface structure comprises a composite skin, foam, a main beam, a main joint and carbon filaments. The metal joint is completely covered inside the composite skin except for a mechanical interface, which greatly increases the bonding area between the metal joint and the composite skin and improves the integrity of the wing surface structure. The metal joint does not have redundant structures required for maintaining the aerodynamic shape, which reduces the design and manufacturing difficulty of the joint, effectively reduces the manufacturing cost and the structure weight. Moreover, the recess at the joint between the metal joint and the composite main beam is filled with carbon filaments, which effectively improves the connection strength between the metal joint and the composite main beam and reduces the risk of peeling failure between the metal joint and the composite main beam under impact load.

The present disclosure relates to the technical field of carbon-carbon insulation felt, and provides a carbon-carbon composite material hard felt and a preparation process thereof, wherein the preparation process comprises the following steps: S1, cutting continuous carbon fiber filaments to obtain short-cut carbon filaments; S2, carding and cross-laying the short-cut carbon filaments to obtain a fiber web; needling and reinforcing the upper and lower surfaces of the fiber web; S3, laying and stacking a plurality of layers of the obtained web tires to obtain a web tire unit; the surface of each layer of the web tire unit is sprinkled with a mixture of low-melting-point resin, short-cut carbon fibers and thermosetting phenolic resin; S4, preheating and pressing the obtained stacked web tires, then spraying a resin solution on the surface, and then microwave dispersing the obtained web tires; and S5, heat pressing and curing the obtained stacked web tires, and then sequentially carbonizing and high-temperature treating to obtain the carbon-carbon composite material hard felt. The carbon-carbon composite material hard felt prepared by the present disclosure has the advantages of low thermal conductivity and low density.

The application discloses a kind of carbon filament surface defect detection methods based on deep learning, including convolution layer is extracted to original image carbon filament feature, filter background information, generate multiple feature maps;Multiple feature maps are sent into encoder module and are encoded;After feature map coding, high and low layer features of carbon filament defect are extracted and fused using backbone network, generate multiple scale feature maps;Multiple scale feature maps generated by backbone network are sent into decoder module and are decoded;The feature map generated after decoding of decoder is fused with the result feature map after preliminary convolution, for the classification and regression prediction of carbon filament defect;The results of classification prediction and regression prediction are output.The application reduces the interference of human subjectivity, which greatly contributes to improving the production speed of large carbon filament bundle, ensuring the quality of carbon filament products and reducing the work intensity of labor personnel.

Provided is a method for producing N-type carbon nanofilaments, including: a first step of adding an N-type dopant to a carbon nanodispersion and doping carbon nanofilaments; and a second step of extruding the doped carbon nanodispersion to produce carbon nanofilaments.

The utility model discloses a carbon brush electric corrosion protection ring automatic threading device which comprises a machine table, two feeding mechanisms arranged in a front-back mode are arranged on the machine table, a belt conveying line is arranged between the two feeding mechanisms, a threading mechanism and a shearing mechanism are arranged on the left side of each feeding mechanism, and a robot is arranged on the left side of the belt conveying line. A discharging mechanism is arranged on the left side of the robot. The threading mechanism comprises a rotating structure and a jackscrew structure, and the rotating structure comprises a servo motor and a positioning seat; the jackscrew structure comprises a third connecting plate, a second horizontal air cylinder, a push block, an ejector rod and a spring. The automatic carbon filament threading machine has the advantages that automatic carbon filament threading operation of the carbon brush electric corrosion protection ring is achieved, the whole process is fully automatic, speed is high, efficiency is high, and production quality is high; automatic operation is achieved, and the whole process is free of pollution, energy-saving and environmentally friendly; the threading device greatly saves manual operation, saves labor cost, and achieves cost reduction and efficiency improvement of carbon brush electric corrosion protection ring production.

The utility model discloses a carbon fiber silk collecting machine automatic silk cutting roll changing device, including the bottom plate, be provided with the carousel and push out board on the bottom plate, be provided with two winding rollers on carousel rotation, and the terminal fixed connection of winding roller has the silk card seat, and the axial direction along winding roller is the first direction, and the clamping jaw slidingly connected with along the first direction on the silk card seat, and the clamping jaw has the silk card gap of carbon fiber's access between the silk card seat, and the first spring is arranged between the clamping jaw and the silk card seat. The utility model silk card seat and the clamping jaw cooperate, realize the fixed of carbon silk end portion after cutting, make carbon silk can be successfully wound on the new winding roller, the clamping jaw is connected with the silk card seat through the first spring, realizes the elastic connection between both, can make the clamping jaw under the action of external force smoothly card under guaranteeing to the carbon silk clamping force, reduces the probability of carbon silk being stuck, promotes the convenient degree of roll changing of silk cutting roll changing device.