CN104674485A - Splitting shaping device and splitting shaping method of ultrathin carbon fiber bundle - Google Patents
Splitting shaping device and splitting shaping method of ultrathin carbon fiber bundle Download PDFInfo
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- CN104674485A CN104674485A CN201510077097.0A CN201510077097A CN104674485A CN 104674485 A CN104674485 A CN 104674485A CN 201510077097 A CN201510077097 A CN 201510077097A CN 104674485 A CN104674485 A CN 104674485A
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Abstract
The invention discloses a splitting shaping device and a splitting shaping method of an ultrathin carbon fiber bundle. The splitting shaping device comprises a plurality of groups of filament spreading double-rollers, a heat roller and a levelness adjusting roller, which are sequentially arranged; each group of filament spreading double-rollers is provided with a hydraulic lifting machine, each hydraulic lifting machine is fixed on a support, two ends of the heat roller are fixedly connected to the support, and two ends of a rotating shaft of the levelness adjusting roller are also fixedly connected to the support; when the carbon fiber bundle is transported, the heat roller is fixed and does not rotate. The splitting and shaping method comprises the steps of enabling the carbon fiber bundle with serous fluid on the surface to sequentially pass through the filament spreading double-rollers, uniformly spreading the carbon fiber bundle under the extruding effect of the filament spreading double-rollers and the lubricating effect of the serous fluid, and pressing and flattening the fluctuated fibers in the carbon fiber bundle; enabling the carbon fiber bundle to pass through the heat roller, enabling the heat roller to be fixed and not to rotate, drying the carbon fiber bundle by virtue of the heat roller, and enabling the carbon fiber bundle to maintain the filament width after he carbon fiber bundle is spread. After the splitting shaping device and the splitting shaping method is applied to the carbon fiber production process, the ultrathin and online continuous and rapid production of the carbon fiber bundle can be realized, and the development of a downstream ultralight ultrathin product can be satisfied.
Description
Technical field
The present invention relates to carbon fiber production technical field, particularly a kind of fibrillation shaping equipment of ultrathin carbon fiber bundle and method.
Background technology
The downstream application of current carbon fiber is popularized gradually, and simultaneously along with the development of science and technology, carbon fiber product is tending towards ultralight, ultra-thin, superpower future development.
Carbon fiber surface starching process and drying course be carbon fiber produce must through process, after carbon fiber starching, the water on its surface and resin are liquid, and liquid can be shrunk to the trend of bead by effect of surface tension.In traditional carbon fiber production technology, usually after carbon fiber starching, just forced air oven is directly adopted to dry to carbon fiber, in this process, water and the liquid resin of carbon fiber surface easily evaporate contraction, cause the wide contraction of silk in carbon fiber drying course, this phenomenon seriously hampers the development of ultralight or ultra-thin carbon fiber product.Therefore, solve the development of this problem to carbon fiber product to have great significance.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, for the production technology of carbon fiber, a kind of fibrillation shaping equipment of ultrathin carbon fiber bundle is provided, after the production technology of carbon fiber sets up this device, can when not destroying carbon fibre material primary characteristic, lifting carbon fiber wire is wide, to meet the exploitation of downstream super-light and super-thin products.
Another object of the present invention is to provide a kind of fibrillation method for shaping of the ultrathin carbon fiber bundle realized by said apparatus.
Technical scheme of the present invention is: a kind of fibrillation shaping equipment of ultrathin carbon fiber bundle, comprises support, hot-rolling, Level tune roller and many group exhibition yarn pair rollers, and according to the throughput direction of carbon fiber bundle, many group exhibition yarn pair rollers, hot-rolling and Level tune roller set gradually; Often group exhibition yarn pair roller is provided with a hydraulic elevator, and each hydraulic elevator is fixed on support, and hot-rolling two ends are fixedly connected with support, and the rotating shaft terminal of Level tune roller is also fixedly connected with support; During carbon fiber bundle conveying, hot-rolling maintains static dynamic.
Described exhibition yarn pair roller comprises the identical upper roller of structure and lower roller, turning to of upper roller and lower roller is contrary, upper roller is connected with hydraulic elevator respectively with the rotating shaft terminal of lower roller, by the gap between hydraulic elevator adjusting upper roll cylinder and lower roller, gap is the conveyor surface of carbon fiber bundle.
Gap between described upper roller and lower roller is 0.05 ~ 0.175mm.Gap precision controls as 0.001mm, and the method for operation of exhibition yarn pair roller is rotated with fiber, by regulating the width in gap, can realize the carbon fiber bundle that different silk is wide.
Described exhibition yarn pair roller has 3 groups, and the conveyor surface of each group exhibition yarn pair roller is positioned in same level.
In described exhibition yarn pair roller, the surface roughness of upper roller and lower roller is respectively Ra=0.1, and upper roller and lower roller are stainless steel roller.
The radius of described upper roller and the radius of lower roller are 5 ~ 15cm, and the radius of hot-rolling is 10 ~ 35cm, and the radius of hot-rolling is at least 2 times of upper roller or lower roller radius.Wherein, the radius of upper roller and the radius of lower roller should not be excessive, because the frictional force by carbon fiber bundle provides driving power to upper roller and lower roller, if radius is excessive, then easily produce fracture of wire phenomenon.
Described hot-rolling is surface roughness Ra=0.1 of stainless steel roller, hot-rolling, and the temperature of hot-rolling is 100 ~ 260 DEG C.
Described Level tune roller is surface roughness Ra=0.1 of stainless steel roller, Level tune roller.
Wherein, the surface roughness of exhibition yarn pair roller, hot-rolling and Level tune roller can be selected according to the actual requirement of carbon fiber bundle, requires that carbon fiber bundle is not hindered by extension.
Described support is fixed with exhibition yarn pair roller clearance controller, the hydraulic elevator that each group exhibition yarn pair roller is corresponding is electrically connected with exhibition yarn pair roller clearance controller respectively.By exhibition yarn pair roller clearance controller, whether the gap can detected in real time in exhibition yarn pair roller between upper roller and lower roller is in preset range, and can control each hydraulic elevator regulates corresponding gap simultaneously.
Described support is fixed with heat roller temperature controller, hot-rolling and heat roller temperature controller are electrically connected.By heat roller temperature controller, whether the temperature that can detect hot-rolling is in real time in preset range, simultaneously controlledly heats the external heater of roller, regulates the temperature of hot-rolling.
In above-mentioned fibrillation shaping equipment, the object arranging exhibition yarn pair roller extrudes the slurries on carbon fiber bundle and its surface, by extruding can carbon fiber bundle equably broadening (fiber concavo-convex in extrusion process carbon fiber bundle is driven plain whole, due to extruding and the lubrication of slurries, carbon fiber bundle is by broadening equably), thus the silk that improve carbon fiber bundle is wide and planarization.The object arranging hot-rolling is that carbon fiber bundle stablizes in hot-rolling drying course that it is wide, principle is the drafting force that carbon fiber bundle drying course is subject to, the reverse friction power of carbon fiber bundle and roller tangent line, hot-rolling to the convergent force of water droplet in the opposing slurries of making a concerted effort of carbon fiber bundle tangent line vertical direction (because water surface tension is very large, drying course, water-drop evaporation shrinks, carbon fiber bundle has the tension force of contraction, the tension force that hot-rolling effectively can resist water in the drying course of carbon fiber bundle shrinks), to ensure that carbon fiber bundle dries front and after drying the wide consistent size of silk, drying course does not shrink.Hydraulic elevator, exhibition yarn pair roller clearance controller, heat roller temperature controller, Level tune roller and support, as the composition accessory of fibrillation shaping equipment, improve its corresponding various functions.
Realize a kind of fibrillation method for shaping of ultrathin carbon fiber bundle according to above-mentioned fibrillation shaping equipment, comprise the following steps:
(1) regulate each group of gap of opening up yarn pair roller in advance by hydraulic elevator, and set the temperature of hot-rolling;
(2) surface is with the carbon fiber bundle of slurries first through exhibition yarn pair roller, and by the squeezing action of exhibition yarn pair roller and the lubrication of slurries, carbon fiber bundle is by broadening equably, and in carbon fiber bundle, concavo-convex fiber is also driven plain whole simultaneously;
(3) broadened and carbon fiber bundle after flattening is through hot-rolling, and hot-rolling maintains static dynamic, is dried carbon fiber bundle by hot-rolling, makes carbon fiber bundle keep the silk after broadening wide; Its principle be the reverse friction power of drafting force, carbon fiber bundle and the roller tangent line that carbon fiber bundle drying course is subject to, hot-rolling to the convergent force resisting water droplet in slurries with joint efforts of carbon fiber bundle tangent line vertical direction (because water surface tension is very large, drying course, water-drop evaporation shrinks, carbon fiber bundle has the tension force of contraction, the tension force that hot-rolling effectively can resist water in the drying course of carbon fiber bundle shrinks), to ensure that carbon fiber bundle dries front and after drying the wide consistent size of silk, drying course does not shrink, and the moisture content of carbon fiber bundle is less than 1%;
(4) carbon fiber bundle after sizing is sent from Level tune roller.
The present invention, relative to prior art, has following beneficial effect:
After this fibrillation shaping equipment is applied to carbon fiber production technology, can realize carbon fiber bundle ultrathin, on-line continuous produces fast, and use simple, the constant product quality of production, has good result of use, can meet the exploitation of downstream super-light and super-thin products.
The silk that this fibrillation shaping equipment is first improved after carbon fiber bundle starching by the extruding of exhibition yarn pair roller is wide, again by hot-rolling dry run, the reverse friction power of the drafting force that carbon fiber bundle is subject to, fiber and hot-rolling tangent line, hot-rolling are to the convergent force of offsetting its surface liquid of fiber drying course with joint efforts of fiber tangent line vertical direction, to ensure that carbon fiber bundle dries front and after drying the wide consistent size of silk, drying course fiber beamwidth does not shrink.
Accompanying drawing explanation
Fig. 1 is the principle schematic of this fibrillation shaping equipment.
Fig. 2 is the principle schematic of this fibrillation shaping equipment when being applied to carbon fiber production technology.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
The fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle of the present embodiment, as shown in Figure 1, comprise support 1, hot-rolling 2, Level tune roller 3 and three groups of exhibition yarn pair rollers 4, according to the throughput direction of carbon fiber bundle 5, three groups of exhibition yarn pair rollers, hot-rolling and Level tune rollers set gradually; Often group exhibition yarn pair roller is provided with a hydraulic elevator 6, and each hydraulic elevator is fixed on support, and hot-rolling two ends are fixedly connected with support, and the rotating shaft terminal of Level tune roller is also fixedly connected with support; During carbon fiber bundle conveying, hot-rolling maintains static dynamic.
Exhibition yarn pair roller comprises the identical upper roller of structure and lower roller, turning to of upper roller and lower roller is contrary, upper roller is connected with hydraulic elevator respectively with the rotating shaft terminal of lower roller, and by the gap between hydraulic elevator adjusting upper roll cylinder and lower roller, gap is the conveyor surface of carbon fiber bundle.
Support is fixed with exhibition yarn pair roller clearance controller 7, the hydraulic elevator that each group exhibition yarn pair roller is corresponding is electrically connected with exhibition yarn pair roller clearance controller respectively.Exhibition yarn pair roller clearance controller adopts the existing controller in market.
Support is fixed with heat roller temperature controller 8, hot-rolling and heat roller temperature controller are electrically connected.Heat roller temperature controller adopts the existing controller in market.
Gap between upper roller and lower roller is 0.175mm.
The conveyor surface of each group of exhibition yarn pair roller is positioned in same level.
In exhibition yarn pair roller, the surface roughness of upper roller and lower roller is respectively Ra=0.1, and upper roller and lower roller are stainless steel roller.
The radius of upper roller and the radius of lower roller are 10cm, and the radius of hot-rolling is 25cm.
Described hot-rolling is surface roughness Ra=0.1 of stainless steel roller, hot-rolling, and the temperature of hot-rolling is 175 DEG C.
Level tune roller is surface roughness Ra=0.1 of stainless steel roller, Level tune roller.
The present embodiment realizes a kind of fibrillation method for shaping of ultrathin carbon fiber bundle by above-mentioned fibrillation shaping equipment, as shown in Figure 2, adopts model to be the carbon fiber bundle of 12k, in conjunction with the production technology of carbon fiber, comprises the following steps:
(1) regulate each group of gap of opening up yarn pair roller in advance by hydraulic elevator, and set the temperature of hot-rolling;
(2) as denoted by the arrows in fig. 2, after carbon fiber bundle unreels, first carry out starching through sizing groove 9, after the surperficial carbon fiber bundle with slurries enters fibrillation shaping equipment, first through exhibition yarn pair roller, by the squeezing action of exhibition yarn pair roller and the lubrication of slurries, carbon fiber bundle is by broadening equably, and in carbon fiber bundle, concavo-convex fiber is also driven plain whole simultaneously;
(3) broadened and carbon fiber bundle after flattening is through hot-rolling, and hot-rolling maintains static dynamic, is dried carbon fiber bundle by hot-rolling, makes carbon fiber bundle keep the silk after broadening wide; Its principle be the reverse friction power of drafting force, carbon fiber bundle and the roller tangent line that carbon fiber bundle drying course is subject to, hot-rolling to the convergent force resisting water droplet in slurries with joint efforts of carbon fiber bundle tangent line vertical direction (because water surface tension is very large, drying course, water-drop evaporation shrinks, carbon fiber bundle has the tension force of contraction, the tension force that hot-rolling effectively can resist water in the drying course of carbon fiber bundle shrinks), to ensure that carbon fiber bundle dries front and after drying the wide consistent size of silk, drying course does not shrink, and the moisture content of carbon fiber bundle is less than 1%;
(4) carbon fiber bundle after sizing is sent from Level tune roller, after drying box 10 is dried, carries out rolling.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 7mm, and tow surface density is 115g/m
2, the moisture content of carbon fiber bundle is 0.83%, concrete visible table 1.
Embodiment 2
The fibrillation shaping equipment of the present embodiment and method are compared with embodiment 1, and its difference is:
In each exhibition yarn pair roller, the gap between upper roller and lower roller is 0.1mm.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 8mm, and tow surface density is 100g/m
2, the moisture content of carbon fiber bundle is 0.75%, concrete visible table 1.
Embodiment 3
The fibrillation shaping equipment of the present embodiment and method are compared with embodiment 1, and its difference is:
In each exhibition yarn pair roller, the gap between upper roller and lower roller is 0.075mm;
The temperature of hot-rolling is 160 DEG C.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 10mm, and tow surface density is 80g/m
2, the moisture content of carbon fiber bundle is 0.76%, concrete visible table 1.
Embodiment 4
The fibrillation shaping equipment of the present embodiment and method are compared with embodiment 1, and its difference is:
In each exhibition yarn pair roller, the gap between upper roller and lower roller is 0.07mm;
The temperature of hot-rolling is 155 DEG C.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 12mm, and tow surface density is 67g/m
2, the moisture content of carbon fiber bundle is 0.76%, concrete visible table 1.
Embodiment 5
The fibrillation shaping equipment of the present embodiment and method are compared with embodiment 1, and its difference is:
In each exhibition yarn pair roller, the gap between upper roller and lower roller is 0.05mm;
The temperature of hot-rolling is 150 DEG C.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 15mm, and tow surface density is 53g/m
2, the moisture content of carbon fiber bundle is 0.82%, concrete visible table 1.
Comparative example 1
The fibrillation shaping equipment of this comparative example and method are compared with embodiment 1, and its difference is:
In each exhibition yarn pair roller, the gap between upper roller and lower roller is 10mm (gap is greater than 1mm, is considered as exhibition yarn pair roller inoperative);
The temperature of hot-rolling is 180 DEG C.
The carbon fiber bundle that the present embodiment is obtained, entering the silk before fibrillation shaping equipment wide is 5mm, and silk when sending fibrillation shaping equipment is wide is 5mm, and tow surface density is 160g/m
2, the moisture content of carbon fiber bundle is 12.37%, concrete visible table 1.
Table 1
In table 1: the silk 1. entered before this fibrillation shaping equipment for carbon fiber bundle is wide; 2. be carbon fiber bundle from Level tune roller out time moisture content; 3. be carbon fiber bundle from Level tune roller out time silk wide.
Learn from the experimental data of upper table, carbon fiber bundle in comparative example 1 is successively through 3 groups of exhibition yarn pair rollers, hot-rolling and Level tune rollers, because the gap 10mm of exhibition yarn pair roller (opens up yarn pair roller gap and is greater than 1mm, be considered as exhibition yarn pair roller inoperative), exhibition yarn pair roller can not carry out squeezing action to carbon fiber, carbon fiber is the wide or 5mm of filament after hot-rolling is dried, and do not have broadening effect to fiber, fiber moisture is greater than 1%;
And in embodiment 1 ~ 5, by the adjustment to 3 groups of exhibition yarn pair roller gaps, along with the gap of exhibition yarn pair roller reduces, after 3 groups of exhibition yarn pair rollers, hot-rolling and Level tune rollers, carbon fiber wire is out wide successively reaches 7 ~ 15mm for the wide carbon fiber bundle of 5mm silk, the thickness degree of carbon fiber is represented by carbon fibre tow surface density, can from comparative example 160g/m
2thickness becomes 115g/m
2thickness, even reaches 53g/m
2thickness.
Known by the display of upper table, after the exhibition yarn pair roller adopting this fibrillation shaping equipment and hot-rolling, lower heating-up temperature can be used, ensure that carbon fiber moisture content is less than 1%, and comparative example 1 uses 180 DEG C of greater energy consumption can not ensure that carbon fiber moisture content is less than 1%.
As mentioned above, just can realize the present invention preferably, above-described embodiment is only preferred embodiment of the present invention, is not used for limiting practical range of the present invention; Namely all equalizations done according to content of the present invention change and modify, all by the claims in the present invention scope required for protection is contained.
Claims (10)
1. a fibrillation shaping equipment for ultrathin carbon fiber bundle, is characterized in that, comprises support, hot-rolling, Level tune roller and many group exhibition yarn pair rollers, and according to the throughput direction of carbon fiber bundle, many group exhibition yarn pair rollers, hot-rolling and Level tune roller set gradually; Often group exhibition yarn pair roller is provided with a hydraulic elevator, and each hydraulic elevator is fixed on support, and hot-rolling two ends are fixedly connected with support, and the rotating shaft terminal of Level tune roller is also fixedly connected with support; During carbon fiber bundle conveying, hot-rolling maintains static dynamic.
2. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 1, it is characterized in that, described exhibition yarn pair roller comprises the identical upper roller of structure and lower roller, turning to of upper roller and lower roller is contrary, upper roller is connected with hydraulic elevator respectively with the rotating shaft terminal of lower roller, by the gap between hydraulic elevator adjusting upper roll cylinder and lower roller, gap is the conveyor surface of carbon fiber bundle.
3. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 2, it is characterized in that, the gap between described upper roller and lower roller is 0.05 ~ 0.175mm.
4. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 2, it is characterized in that, described exhibition yarn pair roller has 3 groups, and the conveyor surface of each group exhibition yarn pair roller is positioned in same level.
5. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 2, it is characterized in that, in described exhibition yarn pair roller, the surface roughness of upper roller and lower roller is respectively Ra=0.1, and upper roller and lower roller are stainless steel roller.
6. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 2, it is characterized in that, the radius of described upper roller and the radius of lower roller are 5 ~ 15cm, and the radius of hot-rolling is 10 ~ 35cm, and the radius of hot-rolling is at least 2 times of upper roller or lower roller radius.
7. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 1, it is characterized in that, described hot-rolling is surface roughness Ra=0.1 of stainless steel roller, hot-rolling, and the temperature of hot-rolling is 100 ~ 260 DEG C.
8. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 1, is characterized in that, described support is fixed with exhibition yarn pair roller clearance controller, and the hydraulic elevator that each group exhibition yarn pair roller is corresponding is electrically connected with exhibition yarn pair roller clearance controller respectively.
9. the fibrillation shaping equipment of a kind of ultrathin carbon fiber bundle according to claim 1, it is characterized in that, described support is fixed with heat roller temperature controller, hot-rolling and heat roller temperature controller are electrically connected.
10. according to any one of claim 1 ~ 9, fibrillation shaping equipment realizes a kind of fibrillation method for shaping of ultrathin carbon fiber bundle, it is characterized in that, comprises the following steps:
(1) regulate each group of gap of opening up yarn pair roller in advance by hydraulic elevator, and set the temperature of hot-rolling;
(2) surface is with the carbon fiber bundle of slurries first through exhibition yarn pair roller, and by the squeezing action of exhibition yarn pair roller and the lubrication of slurries, carbon fiber bundle is by broadening equably, and in carbon fiber bundle, concavo-convex fiber is also driven plain whole simultaneously;
(3) broadened and carbon fiber bundle after flattening is through hot-rolling, and hot-rolling maintains static dynamic, is dried carbon fiber bundle by hot-rolling, makes carbon fiber bundle keep the silk after broadening wide;
(4) carbon fiber bundle after sizing is sent from Level tune roller.
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| CN105386231A (en) * | 2015-12-24 | 2016-03-09 | 威海拓展纤维有限公司 | Carbon fiber yarn spreading device for multi-axial carbon fiber warp knitted fabric |
| CN105624874A (en) * | 2016-03-23 | 2016-06-01 | 江苏澳盛复合材料科技有限公司 | Carbon fiber widening equipment and process |
| CN109972329A (en) * | 2019-03-14 | 2019-07-05 | 英鸿纳米科技股份有限公司 | A kind of dedicated production tooling of high-strength carbon fiber |
| CN109989204A (en) * | 2019-03-14 | 2019-07-09 | 英鸿纳米科技股份有限公司 | A kind of high-strength carbon fiber production fibrillation shaping equipment |
| CN112323204A (en) * | 2020-11-25 | 2021-02-05 | 威海纳川管材有限公司 | Yarn unfolding device |
| CN112725973A (en) * | 2020-12-24 | 2021-04-30 | 南京晓庄学院 | Splitting and shaping device for ultrathin carbon fiber bundles |
| CN112725962A (en) * | 2020-12-24 | 2021-04-30 | 武汉鑫碳科技有限公司 | Process, equipment and application for sizing and twisting spread carbon fiber tows |
| US11401630B2 (en) | 2017-03-30 | 2022-08-02 | M.A.E. S.P.A. | Method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic filaments |
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