CN117779386A - Continuous carbon fiber surface sizing treatment production line and method - Google Patents
Continuous carbon fiber surface sizing treatment production line and method Download PDFInfo
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- CN117779386A CN117779386A CN202410039759.4A CN202410039759A CN117779386A CN 117779386 A CN117779386 A CN 117779386A CN 202410039759 A CN202410039759 A CN 202410039759A CN 117779386 A CN117779386 A CN 117779386A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 150
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 150
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000004513 sizing Methods 0.000 title claims abstract description 88
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention relates to a continuous carbon fiber surface sizing treatment production line and a continuous carbon fiber surface sizing treatment method, comprising the following steps: continuous yarn feeding device: comprises a creel, wherein the creel is provided with a plurality of yarn unwinding rollers for winding carbon fiber tows; sizing device: the device comprises an impregnating tank, wherein a guide assembly is arranged in the impregnating tank to receive carbon fiber tows fed by a yarn feeding roller, a spraying assembly is arranged at the periphery of the guide assembly, and the spraying assembly is connected with a pulp feeding mechanism; and (3) a drying device: the carbon fiber heating device comprises a ceramic tube, wherein the inside of the ceramic tube is used for penetrating through carbon fibers, and a plurality of heating elements are sleeved on the periphery of the ceramic tube along the axial direction of the ceramic tube; widening device: the device comprises a transverse vibration roller assembly and a vertical vibration roller assembly which are used for contacting with the carbon fiber sent out by a drying device; and (3) a winding device: the carbon fiber filament winding machine comprises a winding roller, wherein the winding roller is used for winding the stretched carbon fiber filament bundles, and the winding roller is connected with a rotation driving mechanism to provide power for carbon fiber transmission.
Description
Technical Field
The invention relates to the technical field of carbon fiber sizing, in particular to a continuous carbon fiber surface sizing treatment production line and a continuous carbon fiber surface sizing treatment method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Carbon fiber is a key reinforcing fiber material prepared from high-performance composite materials, the application of the carbon fiber is very common in production and life and composite material parts, the design and modification of the surface characteristics of the carbon fiber are particularly important for the integral function of the composite materials, and the sizing treatment of the carbon fiber is also a key process for the surface treatment of the carbon fiber.
Patent CN 112680901B discloses a large-tow carbon fiber sizing device and a sizing method, sizing is performed through a dipping roller and a duckbill spray pipe, but the sizing process can only be completed, and subsequent drying, widening and winding cannot be realized. Patent CN114960070B discloses a continuous sizing device and a sizing method for carbon fibers, which can only finish the sizing process, but cannot finish the subsequent drying, stretching and winding operations. Patent CN107385735B discloses a system for washing, drying, sizing and drying and shaping carbon fibers, which realizes sizing, drying and widening of the carbon fibers, but cannot realize winding, CN105525466B discloses a carbon fiber sizing device for test, but an ultrasonic expanding device is arranged before the sizing device, and the expanding effect of carbon fiber tows is poor under the condition of lower temperature.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a continuous carbon fiber surface sizing treatment production line and a continuous carbon fiber surface sizing treatment method, which organically combine sizing, drying, widening and rolling of carbon fibers into a production line, have high automation degree and improve production efficiency.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, embodiments of the present invention provide a continuous carbon fiber surface sizing process line, comprising:
continuous yarn feeding device: comprises a creel, wherein the creel is provided with a plurality of yarn unwinding rollers for winding carbon fiber tows;
sizing device: the device comprises an impregnating tank, wherein a guide assembly is arranged in the impregnating tank to receive carbon fiber tows fed by a yarn feeding roller, a spraying assembly is arranged at the periphery of the guide assembly, and the spraying assembly is connected with a pulp feeding mechanism;
and (3) a drying device: the carbon fiber heating device comprises a ceramic tube, wherein the inside of the ceramic tube is used for penetrating through carbon fibers, and a plurality of heating elements are sleeved on the periphery of the ceramic tube along the axial direction of the ceramic tube;
widening device: the device comprises a transverse vibration roller assembly and a vertical vibration roller assembly which are used for contacting with the carbon fiber sent out by a drying device;
and (3) a winding device: the carbon fiber filament bundle winding device comprises a winding roller, wherein the winding roller is used for winding the stretched carbon fiber filament bundles, and the winding roller is connected with a rotation driving mechanism to provide power for carbon fiber transmission.
Optionally, the direction subassembly includes the multiunit pair roller subassembly that sets gradually along carbon fiber direction of delivery, and pair roller subassembly includes first compression roller and the second compression roller that sets up from top to bottom, and first compression roller and second compression roller all rotate with the dipping tank and be connected.
Optionally, the feeding side of the soaking tank is provided with a feeding hole, the feeding end inside the soaking tank is rotationally connected with a feeding guide roller, the discharging side of the soaking tank is provided with a discharging hole, and the discharging end inside the soaking tank is rotationally connected with a discharging guide roller.
Optionally, the spraying assembly comprises a spraying pipe arranged at the periphery of the conveying assembly, and the spraying pipe is provided with a plurality of spraying heads facing the conveying assembly.
Optionally, the slurry supply mechanism comprises a slurry storage tank right above the dipping tank, the slurry storage tank is connected with the spraying assembly through a slurry outlet pipe, and the bottom of the dipping tank is connected with the slurry storage tank through a circulating pipe and an extraction pump.
Optionally, a plurality of heating components are arranged at the bottom of the dipping tank.
Optionally, the heating component adopts an infrared radiation heating pipe.
Optionally, along the conveying direction of the carbon fiber, the heating temperature of a plurality of heating elements sleeved outside the ceramic tube is sequentially increased.
Optionally, the horizontal vibration subassembly and the vertical vibration subassembly set gradually along carbon fiber's direction of delivery, be used for respectively with carbon fiber's lower surface and upper surface contact, horizontal vibration subassembly includes horizontal vibration roller, and horizontal vibration roller is connected with horizontal vibration mechanism in order to export along the horizontal to vibration of perpendicular to carbon fiber direction of delivery, vertical vibration subassembly includes vertical vibration roller, and vertical vibration roller is connected with vertical vibration mechanism in order to export along vertical vibration.
In a second aspect, an embodiment of the present invention provides a method for a continuous carbon fiber surface sizing line according to the first aspect:
the winding roller rotates under the drive of the rotation driving mechanism, and when driving the carbon fiber to wind, the carbon fiber is pulled out from the yarn feeding roller and sequentially passes through the sizing device, the drying device and the widening device;
when the carbon fiber passes through the sizing device, the sizing is realized by spraying the sizing agent to the surface of the carbon fiber by utilizing the spraying assembly while the carbon fiber is conveyed by utilizing the conveying assembly;
carbon fibers after sizing enter a ceramic tube, and are heated and dried under the action of a heating element;
the dried carbon fiber passes through a transverse vibration roller assembly and a vertical vibration roller assembly, the transverse vibration roller assembly applies vibration perpendicular to the conveying direction of the carbon fiber, and the vertical vibration roller assembly applies vertical vibration to the carbon fiber, so that the carbon fiber monofilament expands;
the stretched carbon fiber is wound on the winding roller under the rotation action of the winding roller.
The beneficial effects of the invention are as follows:
1. according to the sizing treatment production line and the sizing treatment method, the stretching device is arranged behind the drying device, carbon fiber tows can be heated before stretching, so that the stretching of the carbon fiber tows is facilitated, and the stretching effect is better.
2. According to the sizing treatment production line and method, the continuous wire discharging device, the sizing device, the drying device, the stretching device and the winding device are sequentially arranged, wherein the winding device provides power for carbon fiber transmission, so that the continuous wire discharging device can release carbon fibers, the carbon fibers sequentially pass through the sizing device, the drying device and the stretching device, finally, the winding is realized by the winding roller of the winding device, the sizing device can spray and size the carbon fibers through a spraying assembly, the drying device can heat and dry the carbon fibers by utilizing a heating element, the stretching device can stretch the carbon fibers through a transverse vibration roller assembly and a vertical vibration roller assembly, the winding roller of the winding device organically combines the stretched carbon fibers into a whole, the automation degree of sizing procedure is improved, the sizing working efficiency is improved, only the winding device provides power for carbon fiber transmission, the matching degree of transmission rates among the devices is not required, and the design and equipment type selection difficulty of the production line is reduced.
3. According to the sizing treatment production line and the sizing treatment production method, the sizing device is provided with the extraction pump and the circulating pipe, so that the slurry falling at the bottom of the dipping tank can be reused, the utilization rate of the slurry is improved, and the production cost is saved.
4. According to the sizing treatment production line and method, the rolling is realized by utilizing the rotation of the rolling roller, meanwhile, the power for conveying the carbon fibers is also provided, only the rolling roller is required to be provided with power equipment in the whole production line, and the continuous wire feeding device, the sizing device and the drying device do not need to be provided with power conveying equipment, so that the structure of the production line is simplified, and the equipment investment of the production line is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present invention;
the device comprises a continuous wire feeding device, a sizing device, a drying device, a widening device, a winding device, a wire feeding roller, a ceramic tube, a creel, an infrared radiation heating tube, a pair roller assembly, a slurry storage tank, a slurry inlet tube, a suction pump, a spray tube, an electric heating sleeve, a transverse vibration roller assembly, a vertical vibration roller assembly, a winding roller, a dipping tank and a circulating tube.
Detailed Description
Example 1
The embodiment provides a continuous carbon fiber surface sizing treatment production line, as shown in fig. 1, along the conveying direction of carbon fiber tows, the continuous wire releasing device 1, a sizing device 2, a drying device 3, a widening device 4 and a winding device 5 are sequentially arranged, the continuous wire releasing device 1 is used for outputting carbon fiber tows to the sizing device 2, the sizing device 2 is used for sizing the carbon fiber tows, the drying device 3 is used for receiving the sized carbon fiber tows sent by the sizing device 2 and heating and drying the sized carbon fiber tows, the widening device 4 is used for expanding carbon fiber tows and further expanding carbon fiber tows, and the winding device 5 is used for winding the expanded carbon fiber tows and driving the carbon fiber tows to be conveyed among the continuous wire releasing device 1, the sizing device 2, the drying device 3 and the widening device 4.
The continuous yarn feeding device 1 comprises a yarn frame 8, a plurality of yarn feeding rollers 6 are arranged on the yarn frame 8, the yarn feeding rollers 6 are rotatably connected with the yarn frame 8, the yarn feeding rollers 6 are used for winding carbon fiber tows, the yarn feeding rollers 6 are arranged in 2-8 rows and are arranged in two rows, in the embodiment, the yarn feeding rollers 6 are arranged in two rows, and the two yarn feeding rollers 6 are arranged up and down.
The sizing device 2 comprises an impregnating tank 19, the impregnating tank 19 is made of metal stainless steel or chromium-plated stainless steel, the impregnating tank 19 is of a V-shaped structure, the top end of the impregnating tank is larger than the bottom end of the impregnating tank, a sealing cover is arranged at the top end of the impregnating tank, and the sealing cover is connected with the impregnating tank through a spring buckle to form a sealing cavity inside the impregnating tank 19.
The impregnation tank 19 is provided on its feed side with a fibre inlet for the carbon fibre tows to enter and on its discharge side with a fibre outlet for the carbon fibre tows to exit.
The dipping tank 19 is internally provided with a guide assembly for guiding the conveying direction of the carbon fiber tows, the guide assembly comprises a plurality of groups of paired roller assemblies 10 which are arranged along the conveying direction of the carbon fiber tows, each paired roller assembly 10 comprises a first pressing roller and a second pressing roller which are arranged up and down, the carbon fiber tows pass through a gap between the first pressing roller and the second pressing roller, the first pressing roller and the second pressing roller are contacted with the carbon fiber tows to guide the movement of the carbon fiber tows, and the first pressing roller and the second pressing roller are rotationally connected with the dipping tank.
The number of the paired roller assemblies 10 is flexibly determined according to the sizing dipping effect, and in this embodiment, six paired roller assemblies are provided.
In order to guide the carbon fiber tows into the guide component, a feeding guide roller is arranged at one side of the fiber inlet, namely, the feeding end of the inner space of the dipping tank 19, the feeding guide roller is rotationally connected with the dipping tank 19, in order to guide the carbon fiber tows out of the dipping tank 19, a discharging guide roller is arranged at one side of the fiber outlet, namely, the discharging end of the inner space of the dipping tank, and the discharging guide roller is rotationally connected with the dipping tank 19.
The periphery of guide subassembly is provided with the subassembly that sprays, sprays the subassembly and is connected with supplying thick liquids mechanism, supplies thick liquids mechanism to send into the subassembly that sprays, sprays the subassembly and sprays the thick liquids towards the carbon fiber silk bundle, realizes the sizing of carbon fiber silk bundle.
The spray assembly comprises a spray pipe 14, the spray pipe 14 is arranged above the guide assembly, the spray pipe 14 is arranged on the feeding side and the discharging side, a plurality of spray heads facing the guide assembly are arranged on the spray pipe 14, and part of axes of the spray pipe 14 on the discharging side and the feeding side are arranged in a V shape.
The shower 14 that is located the top is connected with the one end of advance thick liquids pipe 12, and the other end of advance thick liquids pipe 12 passes behind the sealed lid and is connected with the bottom play thick liquids mouth of thick liquids storage tank 11, thick liquids storage tank 11 is installed directly over the immersion tank 19, fixes through the external support, the bottom of immersion tank 19 is connected with the one end of circulating pipe 20, and the other end of circulating pipe 20 is connected with the bottom of thick liquids storage tank 11, install extraction pump 13 on the circulating pipe 20 for send into thick liquids storage tank 11 again in the immersion tank 19, realized the reuse of thick liquids, practiced thrift manufacturing cost.
The slurry storage tank 11, the circulation pipe 20, the slurry inlet pipe 12 and the extraction pump 13 together constitute a slurry supply mechanism. The extraction pump 13 injects slurry into the slurry storage tank 11, and the slurry flows into the shower pipe 14 from the slurry inlet pipe 12 by the gravity of the slurry itself and the internal pressure of the slurry storage tank 11.
The slurry storage tank 11 is a container made of 1-2L of light-tight acid-alkali corrosion-resistant material, for example, a container made of polytetrafluoroethylene, silicon carbide, phenolic vinyl resin, organic silicon or the like, and in this embodiment, the slurry storage tank is made of 1L of polytetrafluoroethylene material.
The quantity of the extraction pump flow 13 is controlled between 20 and 80m 3 In the range of/h, the pressure is controlled to be 1-5MPa, and in the embodiment, the flow rate of the extraction pump 13 is controlled to be 20m 3 And/h, controlling the pressure at 1MPa.
The guide assembly top and the feed side, ejection of compact side shower part all are provided with 2-6 shower nozzles, and is preferred, the shower nozzle adopts current fan-shaped shower nozzle, sprays the angle control in 20-60 scope, and the diameter control of shower nozzle is in 0.5-2mm scope, and the person skilled in the art can set up according to actual need.
In this embodiment, the shower pipe part of direction subassembly top, feeding side and ejection of compact side all is provided with two shower nozzles, and the spray angle of shower nozzle is 60, and the aperture of shower nozzle is 0.05mm.
The bottom of the dipping tank 19 is provided with a plurality of heating components, and the heating components adopt an infrared radiation heating pipe 9 for controlling the temperature of the slurry in the dipping tank, and the temperature of the slurry is controlled within the range of 20-40 ℃ in the sizing process.
In this example, four infrared radiation heating pipes 9 are provided, by which the slurry temperature is controlled to be stabilized at 40 ℃.
The drying mechanism adopts ceramic pipe 7, and the axis direction of ceramic pipe sets up along the direction of delivery of carbon fiber silk bundle, the internal diameter of ceramic pipe 7 is 100mm-300mm, and the length of ceramic pipe 7 is 400mm-1000mm, and the technical staff can set up according to actual need, in this embodiment, the internal diameter of ceramic pipe 7 is 150mm, and length is 600mm, along the axis direction of ceramic pipe 7, ceramic pipe 7 periphery cover has a plurality of heating elements, heating element adopts current electric heating jacket 15, along the direction of ceramic pipe 7's feed side to ejection of compact side, and the heating temperature of a plurality of heating elements risees gradually, guarantees the homogeneity of sizing treatment, and heating temperature adjusts in 40-120 ℃ range, and technical staff can set up according to actual need.
In this embodiment, four electric heating jackets 15 are provided, and the heating temperatures of the four electric heating jackets 15 are 50 ℃, 70 ℃, 90 ℃ and 110 ℃ along the direction from the feeding side to the discharging side of the ceramic tube 7.
The stretching device comprises a transverse vibration roller assembly 16 and a vertical vibration roller assembly 17 which are used for contacting with the carbon fiber tows sent out by the drying device;
the transverse vibration roller assembly 16 is arranged in front of the vertical vibration roller assembly 17, the transverse vibration roller assembly 16 is in contact with the lower surface of the carbon fiber filament bundle, the vertical vibration roller assembly 17 is in contact with the upper surface of the carbon fiber filament bundle, the transverse vibration roller assembly 16 is provided with 1-3 groups, the vertical vibration roller assembly 17 is provided with 1-3 groups, a person skilled in the art can set the transverse vibration roller assembly 16 according to actual needs, the transverse vibration roller assembly 16 can apply horizontal vibration along the direction perpendicular to the carbon fiber conveying direction to the carbon fiber filament bundle, the vertical vibration roller assembly 17 can apply vertical vibration to the carbon fiber filament bundle, the expanding of fiber monofilaments is effectively realized through the effective cooperation of the transverse vibration roller assembly 16 and the vertical vibration roller assembly 17, the expanding tension is controlled to be 5-8N, the expanding yarn speed is 1-8 m/min, and the sizing thickness carbon fiber expanding yarn is 3-5 times of the original width of the carbon fiber filament bundle under constant tension.
The transverse vibration roller assembly 16 includes a transverse vibration roller, the transverse vibration roller is connected with a transverse vibration mechanism to output horizontal vibration along a direction perpendicular to the conveying direction of the carbon fiber, the transverse vibration mechanism adopts the existing horizontal vibration device, the specific structure of which is not described in detail herein, the vertical vibration roller assembly 17 includes a vertical vibration roller, the vertical vibration roller is connected with a vertical vibration mechanism to output vibration along a vertical direction, the vertical vibration device adopts the existing vertical vibration device, and the specific structure of which is not described in detail herein.
In the embodiment, two groups of transverse vibration roller assemblies 16 and two groups of vertical vibration roller assemblies 17 are arranged to realize 5N stretching tension and fiber stretching treatment with a yarn stretching rate of 1 m/min, and the original fiber width is in the range of 12-20mm after stretching by 4 mm. The vibration expanding is adopted in the embodiment, and compared with the ultrasonic expanding, the expanding effect is better.
The winding mechanism comprises a winding roller 18, the winding roller 18 is rotationally connected with a winding roller bracket, the winding roller 18 is used for winding the stretched carbon fiber tows, and the winding roller 18 is connected with a rotation driving mechanism to provide power for carbon fiber transmission. The rotation driving mechanism adopts a rotation driving motor which is arranged on the wind-up roller bracket, and an output shaft of the rotation driving motor is connected with the wind-up roller 18.
Example 2
The embodiment provides a method for a continuous carbon fiber surface sizing treatment production line, which is characterized in that a rolling roller 18 is driven by a rotary driving motor to rotate, and carbon fiber tows are driven by the rolling roller to be conveyed among a continuous yarn feeding device 1, a sizing device 2, a drying device 3 and a stretching device 4.
The wire releasing roller 6 rotates to release carbon fiber tows, the carbon fiber tows sequentially pass through the plurality of counter roller assemblies 10 after passing through the feeding guide rail, the extraction pump 13 works in the advancing process of the carbon fiber tows in the dipping tank 19, the slurry in the slurry storage tank 11 is sprayed out through the spray pipe 14 and the spray head and sprayed to the surface of the carbon fiber tows, the sizing of the carbon fiber tows is realized, the slurry which is not sprayed to the surface of the carbon fiber tows flows back to the slurry storage tank 11 through the extraction pump 13 to realize recycling, the sized carbon fiber tows are guided out through the discharging guide roller and enter the ceramic tube 7, are sequentially heated and dried step by step through the plurality of electric heating sleeves 15 after passing through the ceramic tube 7, the dried carbon fiber tows sequentially pass through the transverse vibration roller assembly 16 and the vertical vibration roller assembly 17, the carbon fiber tows are stretched under the action of the transverse vibration roller assembly 16 and the vertical vibration roller assembly 17, and the stretched carbon fiber tows are packed on the winding roller under the action of the winding roller 18.
According to the sizing production line and method, the sizing, drying, widening and winding of the carbon fibers are organically combined into a whole, the automation degree of sizing procedures is improved, the sizing working efficiency is improved, only the winding device provides power for carbon fiber transmission, the matching degree of transmission rates among the devices is not needed to be considered, and the design and equipment type selection difficulty of the production line is reduced.
And the stretching device is arranged behind the drying device, so that the carbon fiber tows can be heated before stretching, and the stretching effect is better.
Example 3
Compared with the embodiment 1, the embodiment provides a continuous carbon fiber surface sizing treatment production line, which is characterized in that 4 groups of wire-placing rollers 6 are arranged, 5 groups of infrared radiation heating pipes 9 are arranged at the bottom of a dipping tank 19, the temperature of internal sizing agent is controlled at 36 ℃, three groups of paired roller assemblies 10 are arranged, a sizing agent storage tank 11 adopts a silicon carbide material container with the capacity of 2L, and the flow rate of an extraction pump 13 is 30m 3 And/h, the output pressure is 2Mpa, and each part of the spray pipe 14 is provided with 4 spray heads with 50 degrees of spray angle and 0.1mm of aperture so as to realize continuous spray.
The ceramic tube 7 has an inner diameter of 150mm and a length of 600mm, and the four electric heating jackets 15 have heating temperatures of 50 ℃, 70 ℃, 90 ℃ and 110 ℃.
The stretching device is provided with 1 group of transverse vibration roller assemblies 16 and 1 group of vertical vibration roller assemblies 17, so that the stretching tension of 6N is realized, the fiber stretching treatment of the yarn stretching speed of 3 m/min is realized, and the width of the original fiber after stretching is 5mm is in the range of 15-25 mm.
The other structures are the same as those of embodiment 1, and a repetitive description thereof will not be given here.
Example 4
The embodiment provides a continuous carbon fiber surface sizing treatment production line, and compared with the embodiment 1, the difference is that 5 groups of wire-releasing rollers 6 are arranged in the continuous wire-releasing device 1, the dipping tank 19 is made of chromium-plated stainless steel, 5 groups of infrared radiation heating pipes 9 are arranged in the dipping tank 19, the temperature of the internal sizing agent is controlled at 35 ℃, and 4 groups of paired roller assemblies 10 are arranged in the dipping tank 19.
The slurry storage tank 11 adopts a 1.5L container made of phenolic ethylene and the pressure of the extraction pump 13 is 70m 3 And/h, the output pressure is 2MPa, and each part of the spray pipe 14 is provided with 5 spray heads with the spray angle of 55 degrees and the aperture of 0.15mm so as to realize continuous spraying.
The ceramic tube 7 has an inner diameter of 200mm and a length of 900mm, and the four electric heating jackets 15 have a heating temperature of 40 ℃, 60 ℃, 80 ℃ and 120 ℃.
The stretching device is provided with three groups of transverse vibration roller assemblies 16 and three groups of vertical vibration roller assemblies 17, so that the stretching tension of 8N is realized, the fiber stretching treatment of the yarn stretching speed of 4 m/min is realized, and the width of the original fiber after stretching is 6mm is 18-30 mm.
The remaining structure of this embodiment is the same as that of embodiment 1, and a repetitive description thereof will not be given here.
Example 5:
the present embodiment provides a continuous carbon fiber surface sizing treatment production line, compared with embodiment 1, the difference is that the continuous filament discharging device 1 is provided with 7 groups of filament discharging rollers 6, the impregnating tank 19 is made of chromium-plated stainless steel, 6 infrared radiation heating pipes 9 are arranged inside to control the temperature of the internal sizing agent at 40 ℃, and 6 groups of paired roller assemblies 10 are arranged inside the impregnating tank 19.
The slurry storage tank 11 adopts a 1.8L organic silicon material container, and the flow of the extraction pump 13 is 65m 3 And/h, the output pressure is 3Mpa, and each part of the spray pipe 14 is provided with 6 spray angles of 55 degrees, and spray heads with the aperture of 0.06mm are arranged to realize continuous spraying.
The inner diameter of the ceramic tube 7 is 280mm, the length of the ceramic tube 7 is 1000mm, three electric heating jackets 15 are arranged on the periphery of the ceramic tube 7, and the heating temperatures of the three electric heating jackets 15 are 45 ℃, 85 ℃ and 115 ℃ in sequence.
The stretching device is internally provided with 2 groups of transverse vibration roller assemblies 16 and 2 groups of vertical vibration roller assemblies 17, so that 7.5N stretching tension and fiber stretching treatment with a yarn stretching rate of 6 m/min are realized, and the width of the original fiber after stretching is 7mm is within the range of 7-35 mm.
The remaining structure of this embodiment is the same as that of embodiment 1, and a repetitive description thereof will not be given here.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A continuous carbon fiber surface sizing treatment production line, comprising:
continuous yarn feeding device: comprises a creel, wherein the creel is provided with a plurality of yarn unwinding rollers for winding carbon fiber tows;
sizing device: the device comprises an impregnating tank, wherein a guide assembly is arranged in the impregnating tank to receive carbon fiber tows fed by a yarn feeding roller, a spraying assembly is arranged at the periphery of the guide assembly, and the spraying assembly is connected with a pulp feeding mechanism;
and (3) a drying device: the carbon fiber heating device comprises a ceramic tube, wherein the inside of the ceramic tube is used for penetrating through carbon fibers, and a plurality of heating elements are sleeved on the periphery of the ceramic tube along the axial direction of the ceramic tube;
widening device: the device comprises a transverse vibration roller assembly and a vertical vibration roller assembly which are used for contacting with the carbon fiber sent out by a drying device;
and (3) a winding device: the carbon fiber filament bundle winding device comprises a winding roller, wherein the winding roller is used for winding the stretched carbon fiber filament bundles, and the winding roller is connected with a rotation driving mechanism to provide power for carbon fiber transmission.
2. The continuous carbon fiber surface sizing treatment production line according to claim 1, wherein the guide assembly comprises a plurality of groups of paired roller assemblies which are sequentially arranged along the carbon fiber conveying direction, the paired roller assemblies comprise a first press roller and a second press roller which are arranged up and down, and the first press roller and the second press roller are both in rotary connection with the dipping tank.
3. The continuous carbon fiber surface sizing treatment production line according to claim 1, wherein a feed port is arranged on the feed side of the impregnation tank, the feed end in the impregnation tank is rotatably connected with the feed guide roller, a discharge port is arranged on the discharge side of the impregnation tank, and the discharge end in the impregnation tank is rotatably connected with the discharge guide roller.
4. A continuous carbon fiber surface sizing process line as recited in claim 1, wherein the spray assembly comprises a spray pipe disposed at the periphery of the transfer assembly, the spray pipe having a plurality of spray heads oriented toward the transfer assembly.
5. The continuous carbon fiber surface sizing treatment production line according to claim 1, wherein the slurry supply mechanism comprises a slurry storage tank positioned right above the dipping tank, the slurry storage tank is connected with the spraying assembly through a slurry outlet pipe, and the bottom of the dipping tank is connected with the slurry storage tank through a circulating pipe and an extraction pump.
6. A continuous carbon fiber surface sizing process line according to claim 1, wherein the bottom of the impregnation tank is provided with a plurality of heating elements.
7. A continuous carbon fiber surface sizing process line according to claim 6, wherein the heating element is an infrared radiation heating tube.
8. A continuous carbon fiber surface sizing process line according to claim 1, wherein the heating temperature of a plurality of heating elements sleeved outside the ceramic tube is sequentially increased along the conveying direction of the carbon fiber.
9. The continuous carbon fiber surface sizing treatment production line according to claim 1, wherein a transverse vibration assembly and a vertical vibration assembly are sequentially arranged along the conveying direction of the carbon fiber and are respectively used for being in contact with the lower surface and the upper surface of the carbon fiber, the transverse vibration assembly comprises a transverse vibration roller, the transverse vibration roller is connected with a transverse vibration mechanism to output horizontal vibration along the direction perpendicular to the conveying direction of the carbon fiber, and the vertical vibration assembly comprises a vertical vibration roller, and the vertical vibration roller is connected with the vertical vibration mechanism to output vibration along the vertical direction.
10. A method of a continuous carbon fiber surface sizing line according to any one of claims 1 to 9, characterized in that:
the winding roller rotates under the drive of the rotation driving mechanism, and when driving the carbon fiber to wind, the carbon fiber is pulled out from the yarn feeding roller and sequentially passes through the sizing device, the drying device and the widening device;
when the carbon fiber passes through the sizing device, the sizing is realized by spraying the sizing agent to the surface of the carbon fiber by utilizing the spraying assembly while the carbon fiber is conveyed by utilizing the conveying assembly;
carbon fibers after sizing enter a ceramic tube, and are heated and dried under the action of a heating element;
the dried carbon fiber passes through a transverse vibration roller assembly and a vertical vibration roller assembly, the transverse vibration roller assembly applies vibration perpendicular to the conveying direction of the carbon fiber, and the vertical vibration roller assembly applies vertical vibration to the carbon fiber, so that the carbon fiber monofilament expands;
the stretched carbon fiber is wound on the winding roller under the rotation action of the winding roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410039759.4A CN117779386A (en) | 2024-01-09 | 2024-01-09 | Continuous carbon fiber surface sizing treatment production line and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410039759.4A CN117779386A (en) | 2024-01-09 | 2024-01-09 | Continuous carbon fiber surface sizing treatment production line and method |
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| CN117779386A true CN117779386A (en) | 2024-03-29 |
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| CN202410039759.4A Pending CN117779386A (en) | 2024-01-09 | 2024-01-09 | Continuous carbon fiber surface sizing treatment production line and method |
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| CN (1) | CN117779386A (en) |
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