CN109930275A

CN109930275A - The expansion slivers processing method of carbon fiber wire

Info

Publication number: CN109930275A
Application number: CN201711347818.0A
Authority: CN
Inventors: 钟伟琴
Original assignee: Zhenjiang Xingqian New Material Technology Co Ltd
Current assignee: Zhenjiang Xingqian New Material Technology Co Ltd
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2019-06-25

Abstract

A kind of expansion slivers processing method of carbon fiber wire successively includes the steps that the step of the step of carbon fiber wire (3) tensioning is unfolded, heats, carbon fiber wire are widened and reel (6) winding steps；The step of carbon fiber wire heats are as follows: carbon fiber wire (3) are bypassed into two charged metal roll shafts (3), makes carbon fiber wire (3) to generate heat and softens its surface resin；The step of carbon fiber wire is widened are as follows: widen the carbon fiber wire (3) of surface resin softening in broadening device, the winding steps are as follows: the reel is driven by motor (7) to be arranged, and the finished product carbon fiber wire (3) after broadening is wound on reel (6) with the rotation of reel (6).Compared with prior art, the carbon fiber wire after present invention broadening, fluffy degree is high, effectively improves the wellability of carbon fiber wire, increases considerably the shear strength of joint product and rigid, reaches using the better purpose of carbon fiber wire performance.

Description

The expansion slivers processing method of carbon fiber wire

Technical field

The present invention relates to a kind of fiber process method, a kind of especially expansion slivers processing method of carbon fiber wire.

Background technique

Carbon fiber is a kind of fiber materials being made of elemental carbon, is by organic fiber through high temperature (700~1000 DEG C) carbon Change, phosphorus content is higher than 90% macromolecular fibre, and wherein phosphorus content is known as graphite fibre higher than 99%.The axis of carbon fiber To intensity and modulus height, no creep, fatigue durability is good, specific heat and electric conductivity between nonmetallic between metal, thermal expansion coefficient Small, resistance to chemical reagents is good, and the density of fiber is low, and X-ray transparent is good.Carbon fiber can be divided into polyacrylonitrile-radical, drip by precursor type Green base, viscose glue base and phenolic aldehyde base etc. can be then divided into universal (GP) and high-performance type (HP) two class by mechanical property.Universal carbon Fibre strength 1000MPa, modulus 100GPa or so, high-performance carbon fibers can be divided into high-strength (intensity 2000MPa, modulus again 250GPa) (modulus is in 300GPa or more) with high model.Intensity is greater than 4000MPa person and is known as superelevation strong type；Modulus is greater than 450GPa person is known as superelevation model.With the development of space flight and aircraft industry, has also appeared high-strength height and stretch type (intensity is greater than 49000MPa, ductility are greater than 2%) new varieties.

It is existing a kind of for the Chinese practical of CN200920282868.X entitled " a kind of large-tow carbon fiber expanding unit " New patent discloses a kind of structure, and structure includes the heating roller and rack of reel, at least a pair of tangent setting, institute It states heating roller to connect with gantry rotation, the reel is driven by driving device and rotated.The heating roller is preferably 2~ 10 pairs, and be spaced apart from each other certain distance and be arranged in the rack；The axis of each heating roller and the axis of the reel Line is arranged in parallel；Rotation can be driven by motor in the heating roller；The utility model large-tow carbon fiber expanding unit knot Structure is simple, low in cost, and products thickness made of the carbon fiber after its extension is small, fiber utilization rate is high, makes carbon fiber Performance given full play to.But it the disadvantage is that this device may be only available for large-tow carbon fiber, and is not suitable for small silk The broadening of beam carbon fiber, the carbon fiber wire such as width for 6mm or less than 6mm are widened, it is often more important that, this device broadening Carbon fiber fluffy degree afterwards is inadequate, it is difficult to improve the wellability of carbon fiber, it is compound after product shear strength and rigid compared with It is low, so its structure has yet to be improved.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of expansion of carbon fiber wire for above-mentioned state of the art Slivers processing method, this method simple process, and also the carbon fiber wire expanded after silk has wellability high, can effectively improve joint product Shear strength and rigid.

The technical scheme of the invention to solve the technical problem is: the expansion slivers processing method of this carbon fiber wire, It is characterized in that: successively including the steps that the step of being wound in the carbon fiber wire tensioning expansion unreeled on cylinder, carbon fiber wire heating, carbon The step of fiber filament is widened and reel winding steps；The step of carbon fiber wire heats are as follows: will unreel after being unfolded on cylinder Carbon fiber wire bypasses two charged metal roll shafts, constitutes current loop between carbon fiber wire and two metal roller shafts, makes carbon fiber Silk generates heat and softens its surface resin；The step of carbon fiber wire is widened are as follows: the carbon fiber wire that surface resin softens exists It is widened in broadening device, the winding steps are as follows: the reel is motor driven setting, by the finished product carbon fiber after broadening Dimension silk is wound on reel with the rotation of reel.

As an improvement, the broadening device is broadening plate, width is provided on the broadening plate greater than carbon fiber wire width Through-hole is widened, the carbon fiber wire of surface resin softening is passed through into broadening through-hole when broadening, carbon fiber wire is wound with reel Pulling force move forward, into broadening through-hole after carbon fiber wire upper surface and broadening plate bottom surface mutually squeeze, and from widen through-hole In be pierced by after carbon fiber wire lower surface and widen plate upper surface mutually squeeze, by carbon fiber wire width after extruding be greater than into Carbon fiber wire width before entering to widen through-hole.

It improves again, the broadening device can be two shafts disposed in parallel, after carbon fiber wire heated device heating When across two shafts, the carbon fiber wire upper surface before is in contact with the bottom surface of first shaft, and wears after entering Carbon fiber wire lower surface out is in contact with second shaft upper surface.

It improves again, the temperature-controllable of the carbon fiber wire surface resin softening is made as 150~220 DEG C.

It improves again, the voltage between two charged metal roll shafts is controllable to 25~36 volts.

Improve again, the step of carbon fiber wire tensioning expansion are as follows: pressure roller is provided on cylinder in described unreel, the pressure roller with Connecting rod one end is rotatably arranged in together, and the other end of connecting rod links together with the shaft for being provided with torsional spring, the pressure The roll surface of roller generates tension when unreeling tangent be set together of cylinder and carbon fiber wire is unfolded be wound with carbon fiber wire.

The prior art is compared, and the present invention is using the step for successively unreeling the tensioning expansion of the carbon fiber wire on cylinder including being wound in Suddenly, the step of the step of carbon fiber wire heats, carbon fiber wire broadening and reel winding steps；Carbon fiber after this broadening Silk, fluffy degree is high, and so-called fluffy degree refers to that the strand in the carbon fiber wire after broadening is thinner, mutual space is bigger, thus The wellability for effectively improving carbon fiber wire increases considerably the shear strength of joint product and rigid, reaches and answer With the better purpose of carbon fiber wire performance；In addition, processing method of the invention, simple, convenient, staff is easy to control again Safety, work efficiency is high.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of inventive embodiments；

Fig. 2 is the enlarged drawing that plate is widened in Fig. 1.

Specific embodiment

The present invention will be described in further detail below with reference to the embodiments of the drawings.

As depicted in figs. 1 and 2, the expansion slivers processing method of the carbon fiber wire of the present embodiment successively includes being wound in unreel cylinder 1 On carbon fiber wire 3 be tensioned expansion the step of, carbon fiber wire heating the step of, carbon fiber wire broadening the step of and reel volume 6 Around step；The step of carbon fiber wire heats are as follows: the carbon fiber wire 3 after being unfolded on cylinder 1 will be unreeled around two charged metals Roll shaft 4, the voltage between two charged metal roll shafts 4 in the present embodiment are selected as 25~36 volts.Carbon fiber wire 3 and two gold Belong to and constitute current loop between roll shaft 4, makes its surface since the effect of 3 internal resistance of carbon fiber wire makes carbon fiber wire 3 generate heat Resin softening, the temperature control of 3 surface resin of carbon fiber wire softening are preferable temperature for 150~220 DEG C.Carbon fiber wire broadening Step are as follows: carry out the carbon fiber wire 3 of surface resin softening in broadening device, which is broadening plate 5, the broadening plate The broadening through-hole 53 that width is greater than 3 width of carbon fiber wire is provided on 5, the carbon fiber wire 3 when broadening by surface resin softening is worn Broadening through-hole 53 is crossed, carbon fiber wire 3 is moved forward with the pulling force that reel 6 is wound, the carbon fiber into after broadening through-hole 53 3 upper surfaces 31 of silk and 51 phase of bottom surface of broadening plate 5 squeeze, and 3 lower surface 32 of carbon fiber wire after being pierced by broadening through-hole 53 It is squeezed with 52 phase of upper surface of broadening plate 5, the carbon fiber before broadening through-hole 53 is greater than by 3 width of carbon fiber wire after extruding 3 width of silk.The winding steps are as follows: the reel by motor 7 drive be arranged, by the finished product carbon fiber wire 3 after broadening with The rotation of reel 6 and be wound on reel 6.The step of carbon fiber wire in the present embodiment is tensioned expansion are as follows: unreeling It is provided with pressure roller 2 on cylinder 1, which is rotatably arranged in together with 21 one end of connecting rod, and the other end of connecting rod 21 and setting There is the shaft 22 of torsional spring to link together, the roll surface of the pressure roller 2 exists with the tangent setting of cylinder 1 that unreels for being wound with carbon fiber wire 3 Carbon fiber wire 3 is set to generate tension when being unfolded together.

Certainly, above-mentioned broadening device can also adopt two and be arranged in parallel and at interval shaft, when the heated dress of carbon fiber wire 3 It sets after heating across two shafts (being not drawn into figure) when space, into the carbon fiber wire upper surface 31 and first behind space The bottom surface of root shaft is in contact, and carbon fiber wire lower surface 32 and second shaft after being pierced by space between two shafts Upper surface is in contact.Obviously, above-mentioned broadening device can also adopt the shaft of two parallel tangent settings, when carbon fiber wire 3 is through adding After thermal heating when phase section across two shafts, into behind phase section carbon fiber wire upper surface 31 and first The bottom surface of shaft is in contact, and the carbon fiber wire lower surface 32 after being pierced by phase section connects with second shaft upper surface Touching, be specifically chosen it is any can be by the requirement of design depending on.

Claims

1. a kind of expansion slivers processing method of carbon fiber wire, it is characterised in that: successively include being wound in the carbon fiber unreeled on cylinder (1) The step of the step of the step of silk (3) tensioning expansion, carbon fiber wire heating, carbon fiber wire broadening and reel (6) winding steps； The step of carbon fiber wire heats are as follows: the carbon fiber wire (3) after being unfolded on cylinder (1) will be unreeled around two charged metal roll shafts (4), current loop is constituted between carbon fiber wire (3) and two metal roller shafts (4), carbon fiber wire (3) is made to generate heat and make its surface Resin softening；The step of carbon fiber wire is widened are as follows: carry out the carbon fiber wire (3) of surface resin softening in broadening device Broadening, the winding steps are as follows: the reel by motor (7) drive be arranged, by the finished product carbon fiber wire (3) after broadening with The rotation of reel (6) and be wound on reel (6).

2. expansion slivers processing method according to claim 1, it is characterised in that: the broadening device is broadening plate (5), the expansion The broadening through-hole (53) that width is greater than carbon fiber wire (3) width, the carbon softened surface resin when broadening are provided on wide plate (5) Fiber filament (3) passes through broadening through-hole (53), and carbon fiber wire (3) is moved forward with the pulling force that reel (6) is wound, into broadening Carbon fiber wire (3) upper surface (31) after through-hole (53) and the bottom surface (51) for widening plate (5) mutually squeeze, and from broadening through-hole (53) In be pierced by after carbon fiber wire (3) lower surface (32) and widen plate (5) upper surface (52) mutually squeeze, by carbon fiber after extruding Tie up carbon fiber wire (3) width that silk (3) width is greater than before entering broadening through-hole (53).

3. expansion silk device according to claim 1, it is characterised in that: the broadening device is two disposed in parallel turn Axis, carbon fiber wire upper surface when after the heated device heating of carbon fiber wire (3) across two shafts, before

(31) it is in contact with the bottom surface of first shaft, and the carbon fiber wire lower surface (32) being pierced by after entering and second shaft Upper surface is in contact.

4. according to claim 1 to expansion slivers processing method described in any claim in 3, it is characterised in that: the carbon fiber The temperature control of silk (3) surface resin softening is 150~220 DEG C.

5. according to claim 1 to expansion slivers processing method described in any claim in 3, it is characterised in that: two bands Voltage control between electric metal roll shaft (5) is 25~36 volts.

6. according to claim 1 to expansion slivers processing method described in any claim in 3, it is characterised in that: the carbon fiber The step of silk tensioning expansion are as follows: pressure roller (2) are provided on cylinder (1) in described unreel, which can turn with connecting rod (21) one end It is arranged dynamicly, and the other end of connecting rod (21) links together with the shaft (22) for being provided with torsional spring, the roll surface of the pressure roller (2) Carbon fiber wire (3) are made to generate tension when being unfolded with the unreeling cylinder (1) tangent be set together of carbon fiber wire (3) is wound with.