CN104313730A - Nanometer carbon fiber drawing device - Google Patents
Nanometer carbon fiber drawing device Download PDFInfo
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- CN104313730A CN104313730A CN201410609869.6A CN201410609869A CN104313730A CN 104313730 A CN104313730 A CN 104313730A CN 201410609869 A CN201410609869 A CN 201410609869A CN 104313730 A CN104313730 A CN 104313730A
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- running roller
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Abstract
The invention provides a nanometer carbon fiber drawing device. The nanometer carbon fiber drawing device comprises a PLC (Programmed Logic Controller) control system, an equipment rack, a high-precision linear rail, a compression roller lifting cylinder, a servo motor, a speed reducer, two groups of compression rollers, two groups of traction rollers, an expansion roller and a lever, wherein the PLC system is connected with the servo motor and the speed reducer through communication wires so as to realize automatic control; the high-precision linear rail, the compression roller lifting cylinder, the servo motor, the speed reducer and the traction rollers are respectively and fixedly mounted on the equipment rack; the lever is connected with the servo motor and the speed reducer, and the expansion roller is movably connected with the lever; the compression roller lifting cylinder is fixedly connected with the compression rollers; the expansion roller and the compression rollers are respectively and movably connected with the high-precision linear rail. The nanometer carbon fiber drawing device has the advantages that constant-speed drawing is realized in all directions through the use of inner calculation of the PLC, and the drawing of all parts of carbon fibers is guaranteed to be consistent; adjustability is realized in the draw ratio range, various draw ratios are realized by the same one machine, and time and cost are reduced.
Description
Technical field
The present invention relates to the production plant field of carbon fiber, particularly a kind of stretching device of carbon nano-fiber.
Background technology
Carbon fiber (Carbon Fibre) is fibrous material with carbon element, and in chemical composition, carbon accounts for more than 90% of gross mass.Carbon fiber and composite thereof have high specific strength, and high ratio modulus is high temperature resistant, corrosion-resistant, endurance, creep resistant, conduction, heat transfer, with a series of excellent properties such as thermal coefficient of expansion is little, they both as structural material bearing load, can play a role as functional material again.Carbon fiber product has become the grand strategy goods and materials of economic development and Defence business with the property of its excellence, beautiful, Deng developed country very payes attention to and greatly develops, but affect the quality of carbon fiber product because China's carbon fibre precursor quality does not pass a test always, the countries such as U.S., day strictly limit again China's export carbon fiber, thus greatly constrain the development of China's military affairs and aerospace industry, also limit the exploitation of relevant civil area simultaneously.For breaking the key technology, critical equipment and the relevant supporting technology thereof that restrict China's carbon fiber industry development, the entirety research and development, the production technology level that improve China's carbon fiber industry have its own strategic significance.Through development for many years, only have viscose glue (cellulose) base fiber, pitch fibers and polyacrylonitrile (PAN) fiber three kinds of raw materials to prepare carbon fiber technique at present and achieve industrialization.
In carbon fiber generative process, precursor is the key factor affecting product quality, and high performance precursor is the prerequisite preparing high-performance carbon fibre.Precursor preparation is main through five steps: polymerization, spray silk, solidifying with, stretch and oil.And stretching is the committed step in precursor production process, the precursor of excellent performance be produced, strictly must control the drawing process of precursor; Stretching is the necessary means reducing fiber linear density, improve intensity.In drawing process, the process conditions such as its draft temperature, draw speed, draw ratio, stretching hop count, tensile stress must strictly control.
Current carbon fiber manufacturing market there is no and improves shaping constant tension stretch equipment, affects the up to standard of the technological requirement of high-end procedure of fibre production; The patent No. of my company's application is the patent " a kind of carbon fiber drafting machine " of 201310514368.5, is traditional stretcher, relies on counterweight to stretch, need operator's manual operation draw roll, and stretch ratio can only be manual adjustments, and accurate not.First, counterweight is relied on to carry out stretching carbon fiber, due to mechanical structure, the reason of counterweight ratio, uneven when carbon fiber may be caused to stretch, the tension force of various piece is different, this just likely causes the carbon fiber thickness inequality stretched, and defect rate improves, and reduces product quality.Two, because need operator manually to be fallen by draw roll, waste time and energy, reduce operating efficiency.Last draw ratio cannot accurate adjustment, can only rely on empirical value to adjust, not accurately, can cause the carbon fiber stretch ratio that finally stretched and technological requirement error excessive, cause defect rate to improve, increase cost.Therefore, on the basis of former type, develop a kind of new stretcher solve the problems of the technologies described above and be significant in this area.
Summary of the invention
The defect existed for prior art and deficiency, the invention provides a kind of stretching device of carbon nano-fiber, realize carbon fiber stretching all directions speed identical, realize the automation of tensioner running roller and realize the target that can set within the scope of draw ratio; Thus improve the product quality of procedure of fibre production; For achieving the above object, the stretching device of a kind of carbon nano-fiber that the present invention proposes, adopt following technical scheme, this system comprises:
PLC control system; For automatically controlling the overall of equipment;
Equipment rack, is used for installing and fixing each equipment component;
High accuracy straight line rail, for supporting moving-member accurate movement thereon;
Compress running roller lifting cylinder, for promoting the joint compressing running roller guarantee and drawing-off running roller;
Servomotor and reductor, for controlling the various actions of running roller;
Two groups compress running roller, take turns with drawing roller the tension force combining and regulate fiber;
Two groups of drawing-off running rollers, take turns with hold-down roller the tension force combining and regulate fiber;
Tensioner running roller; By the tension force of adjustment of displacement fiber;
Leading screw is gearing, the position of adjustment tensioner running roller;
PLC control system to be wherein connected with servomotor and reductor by order wire and to realize automatic control; Equipment rack fixedly mounts respectively high accuracy straight line rail, compress running roller lifting cylinder, servomotor and reductor and drawing-off running roller; Leading screw is connected with servomotor and reductor, and tensioner running roller is flexibly connected with leading screw; Compress running roller lifting cylinder to be fixedly connected with compression running roller; High accuracy straight line rail respectively with tensioner running roller, compress running roller and be flexibly connected.
For the further improvement of the technical program, the position in the center of circle of the position in two centers of circle of described two drawing-off running rollers and the tensioner running roller of upper end forms isosceles triangle, to ensure that carbon fiber stretches with an isosceles triangle, and draw ratio is position by moving up and down the tensioner running roller center of circle realizes;
For the further improvement of the technical program, described high accuracy straight line rail adopts ball line slideway.
The operation principle of device of the present invention is mainly:
1. realize stretching all directions speed identical; Use servomotor to drive tensioner running roller, calculate the rate of climb by PLC algorithm, control servo, realize stretching all directions speed identical.Fiber stretches with an isosceles triangle, and draw ratio is by moving up and down vertex of a triangle to realize.Relation between the variation delta L of triangular apex and the variation delta C of triangle girth is as follows:
Wherein L
1for the leg-of-mutton end, L
2for summit move after leg-of-mutton height, L
3for summit move before leg-of-mutton height.
2. realize the automation of tensioner running roller; Use servomotor to drive tensioner running roller, risen by PLC, the instruction of decline sends, and realizes the automation of tensioner running roller.
3. realize within the scope of draw ratio adjustable; By the inner count operation of PLC, calculate the height that tensioner running roller needed for set draw ratio rises, realize within the scope of draw ratio adjustable.This scheme gives full play to the effect of PLC and is that operator is time saving and energy saving, adopts this scheme.
From above embodiment of the present invention, the stretching device of carbon nano-fiber proposed by the invention, compared with prior art, has following advantage:
1. at the uniform velocity stretching by using PLC internal calculation to realize all directions, the uniformity that carbon fiber various piece stretches can be ensured, reduce and occur the inconsistent probability that stretches.
2. realize the automation of tensioner running roller, the work that operator only need to carry out carbon fiber to be put on running roller and to be taken off by the carbon fiber stretched, save time, increase work efficiency.
3. realize within the scope of draw ratio adjustable, can realize same the multiple draw ratio of machine, device of need not changing planes back and forth, saves time, cost-saving.
Accompanying drawing explanation
Fig. 1 is the stretching device structure front schematic view of carbon nano-fiber of the present invention, wherein:
1-equipment rack; 2-first group of servomotor and reductor; 3-leading screw; 4-PLC control system; 5-second group of servomotor and reductor; 6-tensioner running roller; 7-first group of high accuracy straight line rail; 8-drawing-off running roller a and b; 9-compresses running roller, and 10-compresses running roller lifting cylinder; 11-second group of high accuracy straight line rail.
The stretching device texture edge schematic diagram that Fig. 2 is carbon nano-fiber of the present invention, wherein:
6-tensioner running roller; 8a-drawing-off running roller a; 8b-drawing-off running roller b; 9-compresses running roller; 10-compresses running roller lifting cylinder; 12-carbon fiber wire.
Detailed description of the invention
In order to understand technology contents of the present invention better, coordinate institute's accompanying drawings to be described as follows especially exemplified by specific embodiment, as shown in Figure 1, the stretching device of the carbon nano-fiber that the present invention proposes comprises:
PLC control system 4; For automatically controlling the overall of equipment;
Equipment rack 1, is used for installing and fixing each equipment component;
First high accuracy straight line rail 7, for supporting moving-member accurate movement thereon;
Second high accuracy straight line rail 11, for supporting moving-member accurate movement thereon;
Compress running roller lifting cylinder 10, for promoting the joint compressing running roller 9 guarantee and drawing-off running roller 8;
First servomotor and reductor 2, for controlling the various actions of running roller;
Second servomotor and reductor 5, for controlling the various actions of running roller;
Two groups compress running roller 9, are combined with drawing-off running roller 8 tension force regulating fiber;
Two groups of drawing-off running rollers 8, are combined with compression running roller 9 tension force regulating fiber;
Tensioner running roller 6; By the tension force of adjustment of displacement fiber;
Leading screw 3 is gearing, the position of adjustment tensioner running roller 6;
PLC control system 4 wherein by order wire with organize servomotor and reductor more and be connected and realize automatic control; On equipment rack 1, fixed installation respectively organizes high accuracy straight line rail, compression running roller lifting cylinder 10, many group servomotors and reductor, two groups of drawing-off running rollers 8; Leading screw 3 is connected with the first servomotor and reductor 2, and tensioner running roller 6 is flexibly connected with leading screw 3; Compress running roller lifting cylinder 10 to compress running roller 9 be fixedly connected with two groups; First high accuracy straight line rail 7, second high accuracy straight line rail 11 respectively with tensioner running roller 6, compress running roller 9 and be flexibly connected.
Further improvement, the position in the center of circle of the position in two centers of circle of described two drawing-off running rollers 8 and the tensioner running roller 6 of upper end forms isosceles triangle, to ensure that carbon fiber stretches with an isosceles triangle, and draw ratio is position by moving up and down the tensioner running roller center of circle realizes;
Further improvement, described first high accuracy straight line rail 7 and the second high accuracy straight line rail 11 all adopt ball line slideway.
The course of work of device of the present invention is the rotation of the servomotor drive dance roller being controlled top by PLC, and draw roll is by cylinder-pressing simultaneously, completes the pulling action to carbon fiber; The position of the rising of dance roller can be set by PLC, meanwhile, after completing stretching, send instruction by PLC to servomotor, tightening roller be taken turns and gets back to silk position, conveniently get silk and upper silk, realize the automation of tensioner running roller.By the inner count operation of PLC, calculate the height that tensioner running roller needed for set draw ratio rises, realize within the scope of draw ratio adjustable.
As shown in Figure 2, for the stretching device texture edge schematic diagram of carbon nano-fiber of the present invention, the shaft core position of tensioner running roller 6, drawing-off running roller 8a and drawing-off running roller 8b forms the shape of isosceles triangle from the side, and carbon fiber wire 12 carries out stretching operation on these three running rollers; Carbon fiber stretches with an isosceles triangle, and draw ratio is by moving up and down vertex of a triangle to realize.
In sum, the stretching device of carbon nano-fiber provided by the invention, realizes all directions by using PLC internal calculation and at the uniform velocity stretches, and ensures the uniformity that carbon fiber various piece stretches, and reduces and occurs the inconsistent probability that stretches.Realize within the scope of draw ratio adjustable, same the multiple draw ratio of machine can be realized.
The present invention discloses as above by way of example, in any form the present invention be not construed as limiting and limit, scope of the present invention is as the criterion with claims, and all do not exceed the apparent amendment of present inventive concept, conversion and replacement scheme all within the scope of the present invention.
Claims (4)
1. a stretching device for carbon nano-fiber, is characterized in that this device comprises:
PLC control system (4); For automatically controlling the overall of equipment;
Equipment rack (1), is used for installing and fixing each equipment component;
First high accuracy straight line rail (7), for supporting moving-member accurate movement thereon;
Second high accuracy straight line rail (11), for supporting moving-member accurate movement thereon;
Compress running roller lifting cylinder (10), for promoting the joint compressing running roller (9) guarantee and drawing-off running roller (8);
First servomotor and reductor (2), for controlling the various actions of running roller;
Second servomotor and reductor (5), for controlling the various actions of running roller;
Two groups compress running roller (9), combine with drawing-off running roller (8) tension force regulating fiber;
Two groups of drawing-off running rollers (8), combine with compression running roller (9) tension force regulating fiber;
Tensioner running roller (6); By the tension force of adjustment of displacement fiber;
Leading screw (3) is gearing, the position of adjustment tensioner running roller;
PLC control system (4) wherein by order wire with organize servomotor and reductor more and be connected and realize automatic control; On equipment rack (1), fixed installation respectively organizes high accuracy straight line rail, compression running roller lifting cylinder (10), many group servomotors and reductor, two groups of drawing-off running rollers (8); Leading screw (3) is connected with the first servomotor and reductor (2), and tensioner running roller (6) is flexibly connected with leading screw (3); Compress running roller lifting cylinder (10) to compress running roller (9) be fixedly connected with two groups; First high accuracy straight line rail (7), the second high accuracy straight line rail (11) respectively with tensioner running roller (6), compress running roller (9) and be flexibly connected.
2. the stretching device of carbon nano-fiber according to claim 1, it is characterized in that: the position in the center of circle of the position in two centers of circle of described two drawing-off running rollers (8) and the tensioner running roller (6) of upper end forms isosceles triangle, to ensure that carbon fiber wound on it stretches with an isosceles triangle.
3. the stretching device of carbon nano-fiber according to claim 2, is characterized in that: tensioner running roller (6) can move up and down, and the draw ratio of carbon fiber is that the home position by moving up and down tensioner running roller (6) controls.
4. the stretching device of carbon nano-fiber according to claim 1, is characterized in that: described first high accuracy straight line rail (7) and the second high accuracy straight line rail (11) all adopt ball line slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609869.6A CN104313730A (en) | 2014-11-03 | 2014-11-03 | Nanometer carbon fiber drawing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609869.6A CN104313730A (en) | 2014-11-03 | 2014-11-03 | Nanometer carbon fiber drawing device |
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| CN104313730A true CN104313730A (en) | 2015-01-28 |
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| CN201410609869.6A Pending CN104313730A (en) | 2014-11-03 | 2014-11-03 | Nanometer carbon fiber drawing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463629A (en) * | 2015-12-04 | 2016-04-06 | 镇江奥立特机械制造有限公司 | Drafting mechanism of drafting machine |
| TWI746379B (en) * | 2021-02-20 | 2021-11-11 | 吳浩嘉 | Carbon fiber splitting method |
| CN114622399A (en) * | 2022-03-11 | 2022-06-14 | 唐山海港经济开发区北京理工大学机械与车辆学院转化研究中心 | Magnesium oxide fiber preparation device and preparation method |
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| KR960005970B1 (en) * | 1993-12-10 | 1996-05-06 | 제일합섬주식회사 | Method for the preparation of the precursor for carbon fiber |
| CN201121221Y (en) * | 2007-05-29 | 2008-09-24 | 肖颖 | Three-roller intelligent drawing machine |
| CN101419472A (en) * | 2008-11-27 | 2009-04-29 | 上海新卡碳素科技有限公司 | Carbon cloth tension automatic control device in low temperature carbonization furnace system |
| CN202214465U (en) * | 2011-08-16 | 2012-05-09 | 中国科学院宁波材料技术与工程研究所 | Tension control device for fiber thread bundle |
| CN103217445A (en) * | 2013-04-08 | 2013-07-24 | 中国科学技术大学 | Extruding and drawing device for in-situ structure detection in combination with scattering of X rays and experimental method thereof |
| CN103352314A (en) * | 2013-06-28 | 2013-10-16 | 常州市第八纺织机械有限公司 | Intelligent yarn storage device, control system and control method of carbon fiber multi-axial warp knitting machine |
| CN203783156U (en) * | 2014-03-12 | 2014-08-20 | 沈阳工业大学 | Self-balancingtensioning device for prestressedcarbon fiber sheet construction |
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2014
- 2014-11-03 CN CN201410609869.6A patent/CN104313730A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR960005970B1 (en) * | 1993-12-10 | 1996-05-06 | 제일합섬주식회사 | Method for the preparation of the precursor for carbon fiber |
| CN201121221Y (en) * | 2007-05-29 | 2008-09-24 | 肖颖 | Three-roller intelligent drawing machine |
| CN101419472A (en) * | 2008-11-27 | 2009-04-29 | 上海新卡碳素科技有限公司 | Carbon cloth tension automatic control device in low temperature carbonization furnace system |
| CN202214465U (en) * | 2011-08-16 | 2012-05-09 | 中国科学院宁波材料技术与工程研究所 | Tension control device for fiber thread bundle |
| CN103217445A (en) * | 2013-04-08 | 2013-07-24 | 中国科学技术大学 | Extruding and drawing device for in-situ structure detection in combination with scattering of X rays and experimental method thereof |
| CN103352314A (en) * | 2013-06-28 | 2013-10-16 | 常州市第八纺织机械有限公司 | Intelligent yarn storage device, control system and control method of carbon fiber multi-axial warp knitting machine |
| CN203783156U (en) * | 2014-03-12 | 2014-08-20 | 沈阳工业大学 | Self-balancingtensioning device for prestressedcarbon fiber sheet construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463629A (en) * | 2015-12-04 | 2016-04-06 | 镇江奥立特机械制造有限公司 | Drafting mechanism of drafting machine |
| TWI746379B (en) * | 2021-02-20 | 2021-11-11 | 吳浩嘉 | Carbon fiber splitting method |
| CN114622399A (en) * | 2022-03-11 | 2022-06-14 | 唐山海港经济开发区北京理工大学机械与车辆学院转化研究中心 | Magnesium oxide fiber preparation device and preparation method |
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Application publication date: 20150128 |