CN105839230A - Ultra-short cutting-off method and application of high-performance carbon fibers - Google Patents
Ultra-short cutting-off method and application of high-performance carbon fibers Download PDFInfo
- Publication number
- CN105839230A CN105839230A CN201610359743.7A CN201610359743A CN105839230A CN 105839230 A CN105839230 A CN 105839230A CN 201610359743 A CN201610359743 A CN 201610359743A CN 105839230 A CN105839230 A CN 105839230A
- Authority
- CN
- China
- Prior art keywords
- tow
- cutting
- cutterhead
- cut
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
- D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention discloses an ultra-short cutting-off method and application of high-performance carbon fibers. The ultra-short cutting-off method of the high-performance carbon fibers comprises the following steps: S1, importing: penetrating a fiber bundle to be cut off through a first fiber feeding shaft on a creel; opening a clamping device on the fiber feeding shaft and clamping the fiber bundle; after the first fiber feeding shaft rotates for 10 to 20 circles, wrapping the fiber bundle on a second fiber feeding shaft to increase the expansion force of the fiber bundle and outputting from one end of the fiber bundle; S2, detecting: penetrating the output fiber bundle through a fiber guide roller on an expansion force machine to tightly fit the fiber bundle to the surface of the fiber guide roller. Cutting edges of a blade are parallel to each other, cutting-off lengths have no difference and the cutting-off precision is higher; the working length of the blade is larger and the cutting-off capability is higher; a cutterhead has ais simple in design, is easy to maintain and can be suitable for various types of cutting-off requirements; meanwhile, the quantity of the blades needed by the cutterhead under the same scale is fewer and the expansion force and the speed can be detected when the fiber bundle is cut off, so that the safety of cutting off the fiber bundle is guaranteed. The cutting-off shortest distance of the fiber bundle is 1.5mm, the length error is smaller than 0.2 percent and the cutting-off speed reaches 30m/min to 40m/min; fracture-stuck fibers, multiple-length fibers and excessive-long fibers are continually generated.
Description
Technical field
The present invention relates to high-performance carbon fibre technical field, particularly relate to ultrashort cutting-off method and the application thereof of a kind of high-performance carbon fibre.
Background technology
Carbon fiber (carbon
Fiber, is called for short CF), it is the tencel material of a kind of phosphorus content high intensity more than 95%, high modulus fibre.It is to be piled up along fiber axial direction by organic fibers such as flake graphite crystallites to form, the micro crystal graphite material obtained through carbonization and graphitization processing.Carbon fiber " soft outside but hard inside ", quality is lighter than metallic aluminium, but intensity is higher than iron and steel, and has corrosion-resistant, the characteristic of high-modulus, is all important materials at defence and military and civilian aspect.It not only has the intrinsic intrinsic property of material with carbon element, has both again the soft machinability of textile fabric, is a new generation's reinforcing fiber.Carbon fiber has many premium properties, the axial strength of carbon fiber and modulus are high, density is low, higher than performance, without creep, superhigh temperature resistant under non-oxidizing atmosphere, fatigue durability is good, specific heat and electric conductivity are between nonmetal and metal, thermal coefficient of expansion is little and has anisotropy, good corrosion resistance, and X-ray transparent is good.Good electrical and thermal conductivity performance, electromagnetic wave shielding are good etc..Carbon fiber is compared with traditional glass fibre, and Young's modulus is that they are more than 3 times；It is compared with Kafra fiber, and Young's modulus is its about 2 times, insoluble the most swollen in organic solvent, acid, alkali, and corrosion resistance highlights.
The topmost quality of superbhort fiber product be exactly the shearing length of fiber the most even accurately, if this it will be understood that cut 38mm long time, possible 39mm length also belongs to normal, but 3mm and 4mm is exactly two kinds.But if it is for the superbhort fiber of reinforcing material, in addition to the accuracy of shearing length, dispersibility is its topmost index.But dispersibility ensures generally by the method adding dispersant.Therefore as produce superbhort fiber equipment, most critical be how can continuous-stable be cut to required fibre length accurately.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes ultrashort cutting-off method and the application thereof of a kind of high-performance carbon fibre.
The ultrashort cutting-off method of a kind of high-performance carbon fibre that the present invention proposes and application thereof, the ultrashort cutting-off method of described high-performance carbon fibre comprises the following steps:
S1, input: the tow that will cut off, through the first dress yarn axle on creel, opens the clamping device on dress yarn axle, tow is clamped, after the first dress yarn axle rotates 10-20 circle, tow is wire-wrapped in the second dress yarn axle, the tension making tow increases, and exports from one end of tow；
S2, detection: by the tow of output through the godet on tension machine, makes tow be close to the surface of godet, rotates godet 5-10min, make on godet detection device can by tow through time tension and cut-off velocity be detected, then by one end of tow to cutterhead export；
S3, pretreatment: the tow of output is wire-wrapped in the upper of cutterhead, solderless wrapped connection 1-4 encloses so that tow can be stablized by around being connected on cutterhead；
S4, cut off: cutting machine is opened, the number of turns around the tow being connected on cutterhead is on the increase, pinch roller is close to the side of cutterhead, when being more than the gap between cutterhead and pinch roller around the thickness of the tow layer being connected on cutterhead, the tow of internal layer is cut off by the blade on cutterhead under the pressure of cutterhead and pinch roller, and the tow of cut-out falls to being placed in collection silk funnel；
The ultrashort cutting-off method of this high-performance carbon fibre can apply to the cut-out of carbon fiber, aramid fiber, high-strength high-modulus polyethylene, chinlon, terylene, polypropylene, acrylon, glass, the beeline that described tow is cut off is 1.5mm, and error in length is less than 0.2%, cut-off velocity reaches 30-40 m/min, does not produce fracture bonding, double-length and overlength fiber.U.S.'s laboratory chopped is broken a length of 1.5mm, and this superbhort fiber cutting machine belongs to embargo equipment.The chopped of the cutting machine selling China's Mainland is broken a length of 3mm.Therefore, this cutting-off method is applied to the cut-out of special type, superbhort fiber, has filled up the blank of domestic superbhort fiber cutting-off method.
Preferably, the godet on described tension machine is 7 rollers.
Preferably, the velocity of rotation of described cutterhead is 65r.p.m.
Preferably, described blades aligned is neat, starts cutting machine when the complete tensioning of tow of input.
Preferably, described tow is around being connected on 2-3 circle on cutterhead.
Preferably, the denier of described tow is not more than 1,000,000 denier.
In the present invention, the tow cut off loads creel, sends into cutterhead after tension machine, when cutterhead rotates, tow is wound onto on the cutting edge of blade, pinch roller and cutterhead compact siro spinning technology, when the tow number of plies of winding increases, during until silk layer thickness is more than the gap of cutterhead and pinch roller, the silk layer at blade is extruded by pinch roller and cuts off.The chopped fiber cut off progressively moves to cutter head center and falls into collection silk funnel, and the cutting edge of blade is parallel to each other, and shearing length does not has difference, cuts off precision higher；Blade work length is relatively big, cuts off ability higher；Cutterhead design is simple, safeguards easily, can be suitable for various cut-out requirement；Under same scale, the knife number required for cutterhead is less, and tension and speed when cutting off tow can be detected, it is ensured that safety when tow cuts off.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained orally further.
Embodiment one
The ultrashort cutting-off method of a kind of high-performance carbon fibre that the present invention proposes and application thereof, the ultrashort cutting-off method of described high-performance carbon fibre comprises the following steps:
S1, input: the tow that will cut off, through the first dress yarn axle on creel, opens the clamping device on dress yarn axle, tow is clamped, after the first dress yarn axle rotates 10 circles, tow is wire-wrapped in the second dress yarn axle, the tension making tow increases, and exports from one end of tow；
S2, detection: by the tow of output through the godet on tension machine, makes tow be close to the surface of godet, rotates godet 5min, make on godet detection device can by tow through time tension and cut-off velocity be detected, then by one end of tow to cutterhead export；
S3, pretreatment: the tow of output is wire-wrapped in the upper of cutterhead, solderless wrapped connection 1-4 encloses so that tow can be stablized by around being connected on cutterhead；
S4, cut off: cutting machine is opened, the number of turns around the tow being connected on cutterhead is on the increase, pinch roller is close to the side of cutterhead, when being more than the gap between cutterhead and pinch roller around the thickness of the tow layer being connected on cutterhead, the tow of internal layer is cut off by the blade on cutterhead under the pressure of cutterhead and pinch roller, and the tow of cut-out falls to being placed in collection silk funnel；
The ultrashort cutting-off method of this high-performance carbon fibre can apply to the cut-out of carbon fiber, aramid fiber, high-strength high-modulus polyethylene, chinlon, terylene, polypropylene, acrylon, glass, the beeline that described tow is cut off is 1.5mm, and error in length is less than 0.2%, cut-off velocity reaches 30 ms/min, does not produce fracture bonding, double-length and overlength fiber.
Embodiment two
The ultrashort cutting-off method of a kind of high-performance carbon fibre that the present invention proposes and application thereof, the ultrashort cutting-off method of described high-performance carbon fibre comprises the following steps:
S1, input: the tow that will cut off, through the first dress yarn axle on creel, opens the clamping device on dress yarn axle, tow is clamped, after the first dress yarn axle rotates 20 circles, tow is wire-wrapped in the second dress yarn axle, the tension making tow increases, and exports from one end of tow；
S2, detection: by the tow of output through the godet on tension machine, makes tow be close to the surface of godet, rotates godet 10min, make on godet detection device can by tow through time tension and cut-off velocity be detected, then by one end of tow to cutterhead export；
S3, pretreatment: the tow of output is wire-wrapped in the upper of cutterhead, solderless wrapped connection 1-4 encloses so that tow can be stablized by around being connected on cutterhead；
S4, cut off: cutting machine is opened, the number of turns around the tow being connected on cutterhead is on the increase, pinch roller is close to the side of cutterhead, when being more than the gap between cutterhead and pinch roller around the thickness of the tow layer being connected on cutterhead, the tow of internal layer is cut off by the blade on cutterhead under the pressure of cutterhead and pinch roller, and the tow of cut-out falls to being placed in collection silk funnel；
The ultrashort cutting-off method of this high-performance carbon fibre can apply to the cut-out of carbon fiber, aramid fiber, high-strength high-modulus polyethylene, chinlon, terylene, polypropylene, acrylon, glass, the beeline that described tow is cut off is 1.5mm, and error in length is less than 0.2%, cut-off velocity reaches 40 ms/min, does not produce fracture bonding, double-length and overlength fiber.
In the present invention, the cutting edge of blade is parallel to each other, and shearing length does not has difference, cuts off precision higher；Blade work length is relatively big, cuts off ability higher；Cutterhead design is simple, safeguards easily, can be suitable for various cut-out requirement；Under same scale, the knife number required for cutterhead is less, and tension and speed when cutting off tow can be detected, it is ensured that safety when tow cuts off
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (6)
1. the ultrashort cutting-off method of a high-performance carbon fibre and application thereof, it is characterised in that the ultrashort cutting-off method of described high-performance carbon fibre comprises the following steps:
S1, input: the tow that will cut off, through the first dress yarn axle on creel, opens the clamping device on dress yarn axle, tow is clamped, after the first dress yarn axle rotates 10-20 circle, tow is wire-wrapped in the second dress yarn axle, the tension making tow increases, and exports from one end of tow；
S2, detection: by the tow of output through the godet on tension machine, makes tow be close to the surface of godet, rotates godet 5-10min, make on godet detection device can by tow through time tension and cut-off velocity be detected, then by one end of tow to cutterhead export；
S3, pretreatment: the tow of output is wire-wrapped in the upper of cutterhead, solderless wrapped connection 1-4 encloses so that tow can be stablized by around being connected on cutterhead；
S4, cut off: cutting machine is opened, the number of turns around the tow being connected on cutterhead is on the increase, pinch roller is close to the side of cutterhead, when being more than the gap between cutterhead and pinch roller around the thickness of the tow layer being connected on cutterhead, the tow of internal layer is cut off by the blade on cutterhead under the pressure of cutterhead and pinch roller, and the tow of cut-out falls to being placed in collection silk funnel；
The ultrashort cutting-off method of this high-performance carbon fibre can apply to the cut-out of carbon fiber, aramid fiber, high-strength high-modulus polyethylene, chinlon, terylene, polypropylene, acrylon, glass, the beeline that described tow is cut off is 1.5mm, and error in length is less than 0.2%, cut-off velocity reaches 30-40 m/min, does not produce fracture bonding, double-length and overlength fiber.
The ultrashort cutting-off method of a kind of high-performance carbon fibre the most according to claim 1 and application thereof, it is characterised in that the godet on described tension machine is 7 rollers.
The ultrashort cutting-off method of a kind of high-performance carbon fibre the most according to claim 1 and application thereof, it is characterised in that the velocity of rotation of described cutterhead is 65r.p.m.
The ultrashort cutting-off method of a kind of high-performance carbon fibre the most according to claim 1 and application thereof, it is characterised in that described blades aligned is neat, start cutting machine when the complete tensioning of tow of input.
The ultrashort cutting-off method of a kind of high-performance carbon fibre the most according to claim 1 and application thereof, it is characterised in that described tow is around being connected on 2-3 circle on cutterhead.
The ultrashort cutting-off method of a kind of high-performance carbon fibre the most according to claim 1 and application thereof, it is characterised in that the denier of described tow is not more than 1,000,000 denier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359743.7A CN105839230A (en) | 2016-05-27 | 2016-05-27 | Ultra-short cutting-off method and application of high-performance carbon fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359743.7A CN105839230A (en) | 2016-05-27 | 2016-05-27 | Ultra-short cutting-off method and application of high-performance carbon fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105839230A true CN105839230A (en) | 2016-08-10 |
Family
ID=56594575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610359743.7A Pending CN105839230A (en) | 2016-05-27 | 2016-05-27 | Ultra-short cutting-off method and application of high-performance carbon fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105839230A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341537Y2 (en) * | 1973-08-29 | 1978-10-06 | ||
| US4164161A (en) * | 1977-01-22 | 1979-08-14 | Plasticisers Limited | Modified staple cutter |
| CN1442521A (en) * | 2002-03-06 | 2003-09-17 | 三菱丽阳株式会社 | Rolling cutter type fibre bundle cut-off device |
| CN203960417U (en) * | 2014-07-21 | 2014-11-26 | 东莞市碳索复合材料有限公司 | A kind of cutting machine cutterhead |
| CN104195677A (en) * | 2014-08-25 | 2014-12-10 | 东莞市碳索复合材料有限公司 | Fiber cutting machine |
-
2016
- 2016-05-27 CN CN201610359743.7A patent/CN105839230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341537Y2 (en) * | 1973-08-29 | 1978-10-06 | ||
| US4164161A (en) * | 1977-01-22 | 1979-08-14 | Plasticisers Limited | Modified staple cutter |
| CN1442521A (en) * | 2002-03-06 | 2003-09-17 | 三菱丽阳株式会社 | Rolling cutter type fibre bundle cut-off device |
| CN203960417U (en) * | 2014-07-21 | 2014-11-26 | 东莞市碳索复合材料有限公司 | A kind of cutting machine cutterhead |
| CN104195677A (en) * | 2014-08-25 | 2014-12-10 | 东莞市碳索复合材料有限公司 | Fiber cutting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101861508B (en) | Material sheet and process for its preparation | |
| McLaughlin et al. | Fracture mechanism of plant fibres | |
| CN103429806B (en) | High strength tape articles from ultra-high molecular weight polyethylene | |
| US8171711B2 (en) | Hybrid carbon fiber spun yarn and hybrid carbon fiber spun yarn fabric using the same | |
| EP3802676B1 (en) | Hybrid fiber multi-axial prepreg | |
| CN101016668A (en) | Glass fiber bulked yarn and preparing method thereof | |
| Djordjević et al. | Non-Hookean elastic behavior and crystallite orientation in carbon fibers | |
| CN112962189B (en) | Anti-cutting yarn and preparation method and application thereof | |
| CN105839230A (en) | Ultra-short cutting-off method and application of high-performance carbon fibers | |
| Tian et al. | Cut-resistant performance of Kevlar and UHMWPE covered yarn fabrics with different structures | |
| CN107073874A (en) | Method for the sheath of aircraft engine and for manufacturing this sheath | |
| MX2020008724A (en) | Carbon fiber bundle and production method therefor. | |
| EP2960269A1 (en) | Stampable sheet | |
| EP3155359B1 (en) | Fibrous tape | |
| CN103434792B (en) | Wrapper belt and preparation method thereof | |
| CN105624916A (en) | Technology for manufacturing quilting-formed carbon fiber thermal insulation material | |
| Nayak et al. | Enhancement of electrospun UHMWPE fiber performance through post‐processing treatment | |
| CN106782850A (en) | A kind of aerial condutor carbon fiber composite core bar and its processing method | |
| CN203794788U (en) | Glass fiber cutting mechanism | |
| Lin et al. | Weaving carbon fiber/recycled polypropylene selvages to reinforce the polymer‐based protective composite fabrics: Manufacturing techniques and electromagnetic shielding effectiveness | |
| CN209537834U (en) | A kind of thread grip backtwisting clipping apparatus | |
| US20040053048A1 (en) | Reinforced thermostable hybrid yarn | |
| RU2007139204A (en) | HEAT PROTECTIVE EROSION-RESISTANT CARBON-CARBON COMPOSITE MATERIAL AND METHOD FOR PRODUCING IT | |
| CN206582304U (en) | A kind of bevel gear of weaving loom 60 | |
| KR960002129B1 (en) | Method for making composite material bow body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
|
| RJ01 | Rejection of invention patent application after publication |