CN1442521A - Rolling cutter type fibre bundle cut-off device - Google Patents
Rolling cutter type fibre bundle cut-off device Download PDFInfo
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- CN1442521A CN1442521A CN 03105185 CN03105185A CN1442521A CN 1442521 A CN1442521 A CN 1442521A CN 03105185 CN03105185 CN 03105185 CN 03105185 A CN03105185 A CN 03105185A CN 1442521 A CN1442521 A CN 1442521A
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Abstract
The present invention provided a roller cutter type fiber bundle-cutting device, cutting a fiber bundle in a good efficiency and in an equivalent length by a simple structure, and discharging cut short fibers smoothly. This roller cutter type fiber bundle-cutting device is provided by supporting a plurality of cutters 23 with cutter rollers 20 by fixing and installing the cutters by taking a prescribed pitch P in the circumferential direction of the rollers without protruding cutter blade stays 22 to the side surface in the pitch direction of the cutters 23. By winding the fiber bundle 1 on the cutter roller 20 and compressing the fiber bundle 1 with a compressing roller 30, the fiber bundle is cut at a prescribed length continuously by the cutters 23 at the same time. In order to discharge the cut short fibers easily, it is necessary that the thickness A of the cutter blade stay 22 and the thickness B of the cutter 23 satisfy the relationship of A<=B. In order to reduce discharging resistance, it is desirable that the thickness A of the cutter blade stay 22 is less than the thickness B of the cutter 23.
Description
Technical field
The present invention relates on one side the fibre bundle that is wound on the cutting roller be exerted pressure, continuously it is cut to the roll-in cutter-type fiber beam cutting device of certain-length on one side, relate in particular to efficient and etc. longways the cut staple bundle time, the roll-in cutter-type fiber beam cutting device that can successfully discharge.
Background technology
Now, when making the staple fibre (ス テ-プ Le) of synthetic fiber, often adopt roll-in cutter-type fiber beam cutting device, this device is wound on a plurality of cutting knifes with fibre bundle and is fixedly installed on desired spacing on the cutting roller on the circumferencial direction of running roller, on one side this fibre bundle is exerted pressure, Yi Bian cut into certain length continuously.
In order to use such fiber beam cutting device cut staple bundle, on one side press against the outer peripheral face that is wound with 2-3 circle fibre bundle on the cutting roller with the pushing roller, one side in order to a determining deviation be configured on the periphery of cutting roller, the cutting knife that rotates in one direction with cutting roller cuts off.At this moment, be wound onto inboard fibre bundle in the above-mentioned fibre bundle owing to be pushed on the above-mentioned cutting knife, above-mentioned fibre bundle is cut to the staple fibre of the length that requires continuously.The shearing length of staple fibre at this moment is by the spacing decision between the cutting knife of arranging on the circumferencial direction of running roller and fixedly installing.
But, when utilizing the cut-out mode of this fibre bundle,, be easy to generate the distortion and the damage of cutting knife because the pushing roller is very big to the pushing force of rotary cutter.Therefore, configuration cutoff edge support plate makes cutting knife all be clamped and be supported on the two sides, front and back of direction of rotation in existing fiber beam cutting device, by this support plate is fixedly installed on the cutting roller with cutting knife, its structure can be guaranteed the rigidity and the intensity of cutter body, thereby be applied to the great pushing force on the cutting knife when making it tolerate fibre cutting, realized the raising of production performance.
Yet owing to utilize the cutoff edge support plate to clamp and support cutting knife, the spacing between the cutting knife that connects near the spacing between the cutoff edge support plate of adjacency is inevitable is little.Its result, for example, when the fiber beam cutting with roll set becomes staple fibre, the discharge of this staple fibre just can not successfully be carried out between the cutoff edge support plate of adjacency, not only between the cutoff edge support plate, and the obstruction of staple fibre also takes place, thereby there is the problem of can not be efficiently and stably cutting off and so between the cutting knife of adjacency.In addition, between the cutting knife of adjacency and/or the staple fibre that stops up between the cutoff edge support plate of adjacency also often between the cutting knife of adjacency and cutoff edge support plate, be cut off once more and become powder, also have the problem of phenomenon of producing usually so-called " heavily cutting " and so on etc.
In order to address this problem, many technical schemes have been proposed.As an example of this roll-in cutter-type fiber beam cutting device, for example, open in the flat 10-168670 communique the spy, the roll-in cutter-type fiber beam cutting device that is used to make the following staple fibre of 32mm is disclosed.Disclosed roll-in cutter-type fiber beam cutting device in this communique, when the staple fibre below the manufacturing 32mm, the ratio of the thickness Y (mm) of regulation shearing length X (mm) of staple fibre and cutoff edge support plate is 6.6≤X/Y≤7.1, is making the funnelform staple fibre discharge accessory at 30-45 degree angle to 2/3 of the distance of excircle with interior position setting by the center of cutting roller simultaneously.
Above-mentioned spy opens disclosed roll-in cutter-type fiber beam cutting device in the flat 10-168670 communique, when making as the staple fibre below the above-mentioned 32mm, the ratio of the cutting knife length of staple fibre and the thickness of cutoff edge support plate must be designed so that also staple fibre discharges be provided with position and the angle of accessory and satisfy requirement in prescribed limit.Really effectively whether disclosed technology in the above-mentioned communique also do not known in restricted portion as mentioned above, but even so, can only be made the following staple fibre of 32mm yet.And, during staple fibre below making 32mm, must strictly set the ratio of the thickness of the cutting knife length of staple fibre and cutoff edge support plate, what staple fibre was discharged accessory is provided with position and angle.Therefore, the problem of generation is that not only the design of cutting knife, cutoff edge support plate and staple fibre discharge accessory etc. becomes loaded down with trivial details easily, and the free degree of its design is also minimum.
In addition, above-mentioned prior art, as disclosed shown in Figure 2 in above-mentioned communique, a plurality of cutting knifes are fixedly installed on the cutting roller with separately cutoff edge support plate clamping and with support plate, owing to have to make inevitably the spacing between the cutting knife of the gap ratio adjacency between the cutoff edge support plate of adjacency little, when making the minimum staple fibre of shearing length, discharge resistance between the cutoff edge support plate of adjacency must increase, the manufacture of this staple fibre is big more, is producing the obstruction of staple fibre between the cutting knife of adjacency and/or between the cutoff edge support plate of adjacency and is heavily cutting phenomenon then easily more.
In addition, existing this cutoff edge support plate, described in above-mentioned communique, its section is roughly the U font, makes cutoff edge at the front-back of circumferencial direction with the bottom surface is close to and fixing.Therefore, its structure is not only complicated, but also demanding machining accuracy has very big influence to the operation of making and assemble.
Summary of the invention
The present invention proposes for the problem that solves these prior aries existence, its specific purposes are to provide a kind of roll-in cutter-type fiber beam cutting device, it is simple in structure, efficient and also etc. longways in the cut staple bundle, can prevent between the cutting knife of adjacency and/or the staple fibre between the cutoff edge support plate of adjacency produce to stop up or heavily cut, and the staple fibre that can will cut off is successfully discharged.
The present inventor is to producing phenomenons such as the distortion of cutting knife and damage and be surprised to find that for addressing these problems the result who furthers investigate repeatedly owing to cutting knife being applied excessive pushing force when the fiber beam cutting as mentioned above, when making the staple fibre of some length-specific, even do not adopt by from three direction clampings and support the cutoff edge support plate cutting knife is fixedly installed on cutting knife mounting structure on the cutting roller, can accomplish that also cutting knife does not have distortion and destruction etc. and boosts productivity.
Promptly, in the fiber beam cutting of roll-in cutter-type, not to support cutoff edge by the two sides, front and back with the cutoff edge support plate, and cutoff edge can be arranged side by side on cutting roller, like this, because the spacing between the cutting knife of adjacency has increased and the cutoff edge support plate of adjacency between this part of difference of spacing, then reduced the discharge resistance of staple fibre, phenomenon such as can prevent the obstruction of staple fibre and heavily cut.
The roll-in cutter-type fiber beam cutting device of the present invention's first scheme, have: the cutting roller that a plurality of rectangle cutting knifes that the tapered knife blade arranged support with the cutting knife support plate and form in the mode on the circumferencial direction that the cutting knife support plate is fixedly installed on running roller by desired spacing, with have the rotation parallel, dispose relative with above-mentioned cutting roller with the rotation of above-mentioned cutting roller, pushing is wound on the pushing roller of the fibre bundle on the above-mentioned cutting roller; It is characterized in that: the thickness A of above-mentioned cutting knife support plate is thick unlike the thickness B of above-mentioned cutting knife, and above-mentioned cutting knife support plate do not protrude in above-mentioned cutting knife spacing direction the side and hold on the bottom surface of above-mentioned cutting knife.
Basic roll-in cutter-type fiber beam cutting device of the present invention, configuration cutting knife support plate is fixedly installed on the circumferencial direction of running roller with desired spacing with this cutting knife support plate on the bottom surface of a plurality of cutting knifes.For long fiber beam cutting is become staple fibre, make it vertical with two or three states that enclose that fibre bundle is reeled with these cutting knifes, drive roller wheel makes its rotation.At this moment, push the above-mentioned fibre bundle that constitutes by multilayer with the pushing roller simultaneously, thereby long fibre bundle is cut into staple fibre successively from orlop.
Roll-in cutter-type fiber beam cutting device of the present invention, can't help outwards outstanding being configured on the bottom surface of cutting knife of front and back sides of spacing direction of above-mentioned cutting knife owing to making above-mentioned cutting knife support plate, and be fixedly installed on desired spacing on the circumferencial direction of running roller, the so simple structure of above-mentioned cutting knife is supported in employing from the bottom surface.At this moment, between the thickness of the length of above-mentioned cutting knife length direction and cutting roller circumferencial direction, preferably satisfy specific relational expression.As long as satisfy this relational expression,, also can fully bear pushing force that the pushing roller produces and the distortion and the damage of unlikely generation cutting knife even adopt said structure.
In order to allow the staple fibre that cuts off successfully discharge, importantly, above-mentioned cutting knife support plate should satisfy the relation of A≤B in the thickness B of the thickness A of running roller circumferencial direction and cutting knife.For between the cutting knife support plate that reduces adjacency and/or the discharge resistance between the cutting knife of adjacency, more wish the thickness B of the thickness A＜cutting knife of above-mentioned cutting knife support plate.
If adopt said structure, because the spacing between the cutting knife of the gap ratio adjacency between the cutting knife support plate of adjacency is wideer, the discharge of the staple fibre that cuts off can successfully be carried out by the discharge space of the discharge space between cutting knife between the cutting knife support plate that has enlarged, and can not produce staple fibre between the cutting knife of adjacency and/or the obstruction between the cutting knife support plate of adjacency, can be efficiently and etc. cut off longways.In addition, because the discharge of staple fibre is smooth, staple fibre can not be trapped in the blade tip of cutting knife, can not produce heavily certainly yet and cut.
Therefore, even use the present invention to handle a large amount of fibre bundles, the discharge of staple fibre can successfully be carried out, and above-mentioned cutting knife and cutting knife support plate can not produce deformation and failure because of not bearing excessive pushing force yet, can stably make the staple fibre with requirement fibre cutting length.
The feature of the roll-in cutter-type fiber beam cutting device of alternative plan of the present invention is: the thickness A of above-mentioned cutting knife support plate and the thickness B of cutting knife are 0.5-2.0mm.
More obvious for the action effect of first scheme that makes the invention described above, important part is to select the thickness A of above-mentioned cutting knife support plate and the thickness B of cutting knife.It is effective that the thickness A of above-mentioned cutting knife support plate and the thickness B of cutting knife are 0.5-2.0mm.If the thickness B of the thickness A of above-mentioned cutting knife support plate and cutting knife less than 0.5mm, is concentrated great pushing force easily to above-mentioned cutting knife support plate and cutting knife, the above-mentioned cutting knife support plate and the distortion of cutting knife and bursting apart of cutoff edge take place easily, be unfavorable for implementing.
In addition, if the thickness A of above-mentioned cutting knife support plate and cutting knife, B are greater than 2.0mm, then the spacing between the cutting knife of adjacency narrows down, for example, when the shearing length of staple fibre is the staple fibre that cuts off below the 55mm, the discharge of staple fibre just can not successfully be carried out, and can not cut into equal lengths efficiently because of producing between the cutting knife support plate of adjacency and/or between cutting knife to stop up, thereby can not realize the purpose that the present invention is initial.
The feature of the roll-in cutter-type fiber beam cutting device of third party's case of the present invention is: the above-mentioned relation formula of specific above-mentioned cutting knife, and promptly cutting knife should satisfy relational expression at the effective length L and the cutting knife of length direction in the thickness B of the circumferencial direction of cutting roller: (L/100)＜B＜(L/10).
Herein, so-called above-mentioned cutting knife is meant the cutting knife length of exposed portions serve between pair of flanges at cutting roller at the effective length L of length direction.Have intensity to bear fiber beam cutting the time in order to ensure cutting knife, stipulate that preferably above-mentioned cutting knife is (L/100)＜B＜(L/10) at the effective length L of length direction and cutting knife at the size relationship of the thickness B of cutting roller circumferencial direction.
Cutting knife thickness B by above-mentioned alternative plan is 0.5-2.0mm, this cutting knife thickness B relatively, and the length L of preferably setting cutting knife in the scope that satisfies the formula of (L/100)＜B＜(L/10) is 5mm＜L＜200mm.Be more preferably that (L/75)＜B＜(L/25) scope is effective especially.If the length L of this cutting knife is less than 5mm, then the lip diameter of cutting roller is big, and because of the cut-out ability of cutting knife extremely low and unfavorable.If the length L of above-mentioned cutting knife is greater than 200mm, then the rigidity of rotary cutter and intensity all reduce, and the distortion of cutting knife and bursting apart of blade also take place sometimes easily.
If adopt said structure, then needn't be by support three directions of cutting knife as the existing cutoff edge support plate clamping that is the U font.By supporting the bottom surface of above-mentioned cutting knife as mentioned above, then can bear the bigger pushing force in part that when fiber beam cutting, is applied on the cutting knife, thereby can boost productivity with simple structure.
The feature of the roll-in cutter-type fiber beam cutting device of cubic case of the present invention is: the spacing of above-mentioned cutting knife is 10-100mm.Spacing between the cutting knife of the shearing length of decision staple fibre is provided with special qualification, but the scope of the spacing between the cutting knife of hope regulation adjacency.In order to manifest above-mentioned action effect fully, the scope of this spacing is preferably at 10-100mm, preferred especially 25-45mm.Even during cut-out above-mentioned cutting knife is applied excessive concentrated load, also can not produce the distortion of these cutting knifes and destruction etc., thereby can correctly cut off and the cutting knife of adjacency between the isometric fibre bundle of spacing the time, can discharge the staple fibre that has cut off well.If spacing is less than 10mm, the discharge of staple fibre sometimes can not successfully be carried out, if when surpassing 100mm, the pushing roller increases to the component of the front and back sides of the direction of rotation of cutting knife the pushing force that the cutting knife of rotation produces, and produces the distortion of these cutting knifes and destruction etc. sometimes.
The feature of the roll-in cutter-type fiber beam cutting device of the present invention's the 5th scheme is: above-mentioned cutting knife constitutes by base portion with from this diminishing tapering of base portion forward end, and the cone angle in this tapering is 10-40 °.
Bursting apart of blade be not so long as take place in the shape in the tapering of above-mentioned cutting knife, and the discharge that can successfully carry out staple fibre gets final product, and there is no particular limitation.In order to manifest aforesaid action effect more, the cone angle in the tapering of above-mentioned cutting knife is effective at 10-40 °.Preferred especially above-mentioned cone angle is 14-31 °.Like this, can accomplish that cutoff edge does not damage and in long-term the use, keep the excellent cutting performance.
The feature of the roll-in cutter-type fiber beam cutting device of the 6th scheme of the present invention is: the front end in above-mentioned tapering and the cone angle of base portion are made different two sections, and the cone angle of its one is in a ratio of littler acute angle with the cone angle at tip.
The tapering of above-mentioned cutting knife can be single conical surface structure as the 5th scheme, but by the front end in above-mentioned tapering and the cone angle of base portion are made different two sections, effective especially for manifesting aforesaid action effect.Make littler acute angle by the cone angle of the base portion in above-mentioned tapering is compared with the cone angle of front end, then bursting apart of above-mentioned cutoff edge is difficult, can more easily discharge cut staple fibre.
The feature of the roll-in cutter-type fiber beam cutting device of the 7th scheme of the present invention is: the height overall in above-mentioned tapering is 2.0-6.0mm, and the height overall of above-mentioned cutting knife is below the 20mm and more than the height of tapering.
The height overall in above-mentioned tapering is not particularly limited so long as can successfully discharge staple fibre when having the intensity that can bear cut-out and get final product.The height overall in above-mentioned tapering is preferably at 2.0-6.0mm, and more preferably the height overall in above-mentioned tapering is that 2.5-5.5mm is effectively, can bring into play above-mentioned action effect more significantly.
Of the present invention the from all directions the feature of the roll-in cutter-type fiber beam cutting device of case be: the R of surface roughness of the conical surface that represents the front end in above-mentioned tapering
ZValue is 0.1-6.3 μ m, the R of the surface roughness of the conical surface of expression base portion
ZValue is 0.8-25.0 μ m.
Each surface roughness in the front end of the cutting knife that is formed by two different conical surfaces of angle and the tapering of base portion is not particularly limited, but when measuring with normally used contact pin type surface roughness measurement device, the surface roughness R of the conical surface of the front end in above-mentioned tapering
ZValue is preferably 0.1-6.3 μ m, is effective especially at the 0.5-1.6 mu m range more preferably.The surface roughness R of the conical surface of the opposing party's base portion
ZValue can be the surface roughness R with the conical surface of front end
ZBe worth identical surface roughness, but be preferably 0.8-25.0 μ m, more preferably 3.2-12.5 μ m.
Because such surface roughness can prevent the surface of staple fibre attached to cutting knife, can further successfully discharge staple fibre.In addition, because cutting knife has high strength and high tenacity, can obtain high-quality above-mentioned cutting knife surface.
Description of drawings
Fig. 1 is the key diagram of structure of an example of the roll-in cutter-type fiber beam cutting device of the typical embodiments of the present invention of schematic representation.
Fig. 2 is the amplification profile of the II-II line of Fig. 1.
Fig. 3 is the key diagram of the relation of the expression thickness that is applicable to the thickness of cutting knife support plate of roll-in cutter-type fiber beam cutting device of the present invention and cutting knife.
Fig. 4 is the key diagram of the relation of the expression thickness that is applicable to the length of cutting knife of roll-in cutter-type fiber beam cutting device of the present invention and cutting knife.
The specific embodiment
Below, specify illustrated embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is the key diagram of representing briefly as the structure of an example of the roll-in cutter-type fiber beam cutting device of exemplary embodiments of the present invention.Fig. 2 is the amplification profile of the II-II line of Fig. 1, Fig. 3 is the key diagram of relation of thickness of thickness and the cutting knife of the expression cutting knife support plate that is applicable to roll-in cutter-type fiber beam cutting device of the present invention, and Fig. 4 is a key diagram of representing to be applicable to the relation of cutting length and cutting knife thickness of roll-in cutter-type fiber beam cutting device of the present invention.
The roll-in cutter-type fiber beam cutting device 10 of Fig. 1 has: the cutting roller 20 that can support around vertical axis with rotating freely, be positioned on the rotation parallel with the rotation of this cutting roller 20, relative with this cutting roller 20, can support the pushing roller of making by the rubber elastomeric material 30 with rotating freely.According to illustrative example, guide reel 40 can be supported on the rotation parallel with the rotation of above-mentioned pushing roller 30 and with above-mentioned cutting roller 20 with rotating freely and be sandwiched in therebetween.
This guide reel 40 is not limited to the running roller that example as shown has the rotation parallel with the rotation of above-mentioned cutting roller 20 and pushing roller 30, also can be for example to have the rotation that the rotation with above-mentioned cutting roller 20 intersects, can guide the running roller of twisting oblique fibre bundle.And, also can use for example guide member such as guide rod, niproll, perhaps the various guide members of their combination replace above-mentioned guide reel 40.Above-mentioned cutting roller 20 has the pair of flanges up and down in the form of annular discs 21,21 that is oppositely arranged with certain interval as shown in Figures 1 and 2.Between each flange 21, by at the circumferencial direction of running roller cutting knife support plate 22, fixedly install by front end and have the cutting knife 23 that the rectangular member of sharp-pointed point of a knife constitutes with the certain spacing configuration.This cutting knife 23 is made of base portion 23a that is rectangle tabular and the tapering 23b that diminished gradually by this base portion 23a forward end as shown in Figure 3.
The invention is characterized in: the thickness A of the cutting knife support plate 22 of above-mentioned cutting roller 20 is set at as shown in Figure 3, be not thicker than the thickness B of above-mentioned cutting knife 23, simultaneously, above-mentioned cutting knife support plate 22 do not protrude in above-mentioned cutting knife 23 spacing direction the side and support the bottom surface of cutting knife 23.When above-mentioned cutting knife support plate 22 is made from the outstanding such structure of cutting knife 23,, just can not realize goal of the invention of the present invention because the discharge of cut staple fibre is broken down.
According to illustrative example, on the relative one side of a pair of above-mentioned flange 21 up and down, be respectively arranged with cutting knife installing plate 24,24.On the relative one side of each cutting knife installing plate 24, be the center with the rotation of above-mentioned cutting roller 20, on the circumferencial direction of running roller, form the groove 24a that a plurality of installation cutting knifes are used respectively with certain spacing ..., 24a.In relative a pair of groove 24a up and down, inlay fixing the portion of dual-side longitudinally of above-mentioned cutting knife 23 respectively.On the bottom surface of the base portion 23a of this cutting knife 23, disposing the cutting knife support plate 22 between the relative one side that is clamped and fixed in above-mentioned each cutting knife installing plate 24.And the installation of above-mentioned cutting knife support plate 22 is not subjected to the qualification of illustrative example, also can be identical with the installation of above-mentioned cutting roller, with the vertical dual-side portion of above-mentioned cutting knife support plate 22 inlay be fixed on not shown, be formed in the installing hole on the above-mentioned cutting knife installing plate 24.
At the middle position of the cutting knife installing plate of the above-mentioned flange 21 of downside, the staple fibre that abuts to form the diminishing conical surface of diameter below having in the bottom surface with above-mentioned cutting knife support plate 22 is discharged the first peristome 24b of usefulness.Form at the above-mentioned flange 21 of downside and to have the second peristome 21a that discharges usefulness with the staple fibre of the minor diameter same inner diameter size of the conical surface of the above-mentioned first peristome 24b, on the above-mentioned flange 21 of downside, be set with by this second peristome 21a and discharge the staple fibre that to discharge downwards, have the staple fibre discharge portion 25 that constitutes by cartridge of through hole in inside.
On the circumferencial direction of the running roller of above-mentioned cutting roller 20, the spatial portion of the horizontal direction that forms between with the cutting knife 23 of certain spacing adjacency, between the cutting knife support plate 22 of adjacency, form, near the spatial portion of the horizontal direction that enlarges of spatial portion between the cutting knife 23 that connects and each peristome 24b of the vertical direction that on the above-mentioned flange 21 of downside and cutting knife installing plate 24, forms, 21a and above-mentioned staple fibre discharge portion 25 in formation than each peristome 24b, the through hole of the vertical direction of the internal diameter size that 21a is big is communicated with respectively, constitute staple fibre and discharge the space, be used for cut into and the cutting knife 23 of adjacency between the staple fibre of spacing P equal length be discharged to staple fibre transports 26 such as belt conveyer.
Above structure is an example of the roll-in cutter-type fiber beam cutting device 10 of expression present embodiment, much less, its structure, shape and component parts thereof are not subjected to the qualification of illustrative example.And in the above-described embodiments, though the structure example that 20 expressions of above-mentioned cutting roller are flatly rotated around vertical axis, the present invention is not subjected to the qualification of illustrative example, can support above-mentioned cutting roller 20 around horizontal axis with rotating freely yet.
At this moment, as the record in the above-mentioned communique, with the running roller rotation be the center, with the single armed state will be roughly in the form of a truncated cone the staple fibre base end part of discharging parts be supported and fixed on the cutting knife installing plate 24 of above-mentioned flange 21 of upside, can reach in the above-mentioned staple fibre discharge portion 25 to the diminishing free end of above-mentioned flange 21 diameters by the downside that above-mentioned each peristome 24b, 21a discharge parts with this staple fibre.Above-mentioned staple fibre is discharged parts can effectively utilize different shape, for example, become horn-like, coniform, the pyramid-shaped identical, perhaps on staple fibre is discharged direction, have the spline-shaped that forms many on the circumferencial direction of running roller long groove, discharge parts at staple fibre etc. with above-mentioned prior art.
In order to use above-mentioned roll-in cutter-type fiber beam cutting device 10 to make staple fibres, fibre bundle 1 is wound on the above-mentioned cutting roller 20 a few.When being wound on the outer peripheral face of the fibre bundle 1 that constitutes by multilayer on this cutting roller 20, push the fibre bundle of multilayer with the cutting knife 23 on the cutting roller periphery of rotation in one direction with 30 pushings of above-mentioned pushing roller with meeting at right angles.Simultaneously, above-mentioned fibre bundle is cut into the staple fibre isometric with the spacing P of cutting knife 23 successively continuously from orlop.Cut into the staple fibre of certain shearing length, fall from the through hole of each peristome 24b, 21a by above-mentioned flange 21 and cutting knife installing plate 24 and above-mentioned staple fibre discharge portion 25 between the cutting knife support plate 22 of adjacency and the cutting knife 23 and to make it be slipped to above-mentioned staple fibre transport 26, be transported to the site of storage of regulation again by this staple fibre transport 26.
Owing to adopt said structure, cut staple fibre then can successfully be discharged to the discharge space between each the cutting knife support plate 22 that has enlarged by the discharge space between each cutting knife 23.Because between the cutting knife 23 of adjacency and/or the obstruction that can not produce staple fibre between the cutting knife support plate, can not occur when can prevent from heavily to cut, can realizing efficiently cutting off and guaranteeing isometric on the blade that staple fibre hung over and be trapped in cutting knife 23 yet.Even cut off a large amount of fibre bundle 1, concentrate the excessive pushing force that applies and can successfully discharge staple fibre because above-mentioned cutting knife 23 and cutting knife support plate 22 can bear, when can prevent the distortion of above-mentioned cutting knife 23 and cutting knife support plate 22 and damage etc., can stably make staple fibre.
In the present invention, except the allocation position of aforesaid cutting knife 23 and cutting knife support plate 22, the cone angle of the tapering 23b of each thickness by suitable setting cutting knife 23 and cutting knife support plate 22, the spacing P of cutting knife 23, cutting knife 23, the shape of cutting knife 23, highly, the height of length, surface roughness and material and cutting knife support plate 22 and material etc., can show action effect of the present invention more significantly.Therefore, the following description will be that the center is illustrated with above-mentioned cutting knife 23 and cutting knife support plate 22.
1, the thickness A of the thickness B of cutting knife 23 and cutting knife support plate 22, according to illustrative example, in order easily to discharge staple fibre, the thickness B of the thickness A of cutting knife support plate 22 and cutting knife 23 has the relation of A＜B.When the thickness A of cutting knife support plate 22 is bigger than the thickness B of cutting knife 23, the spacing of the cutting knife support plate 22 of adjacency narrows down, because the discharge resistance of staple fibre increases, the discharge of staple fibre can not successfully be carried out, and stops up and can not cut off expeditiously because of producing between each cutting knife support plate 22.
In order to reduce the discharge resistance between each cutting knife support plate 22, the thickness B of the thickness A of best above-mentioned cutting knife support plate 22 and cutting knife 23 is A＜B, and the thickness B of above-mentioned cutting knife 23 is preferably in 0.5-2.0mm.When this thickness B during less than 0.5mm, apply excessive pushing forces because above-mentioned cutting knife 23 concentrated easily, take place easily that then the distortion of above-mentioned cutting knife 23 and blade burst apart etc.
In addition, when this thickness B during greater than 2mm, spacing between the cutting knife 23 of adjacency narrows down, staple fibre, especially when to cut off shearing length be staple fibre below the 55mm, the discharge of staple fibre can not successfully be carried out, between the cutting knife 23 of adjacency, produce and stop up, can not realize efficient and isometric cut-out.
On the other hand, the best thickness B with above-mentioned cutting knife 23 of the thickness A of above-mentioned cutting knife support plate is all 0.5-2.0mm.This thickness A is if surpass the scope of 0.5-2.0mm, the same with above-mentioned cutting knife 23, the distortion of cutting knife support plate 22 and damage etc. take place easily, the discharge of staple fibre can not successfully be carried out, stop up owing to produce between the cutting knife support plate 22 of adjacency, can not efficiently wait and cut off longways.
2, the spacing of cutting knife 23
It is long that the spacing P of this cutting knife 23 equals the cut-out of staple fibre.There is no particular limitation for the spacing P of the cutting knife 23 that the cut-out of decision staple fibre is long, but be preferably in 10-100mm, especially preferably at 20-45mm.Can prevent during cut-out because of cutting knife 23 is applied excessive pushing force, the distortion of cutting knife 23 and cutting knife support plate 22 and damage etc., can successfully discharge simultaneously cut into and the cutting knife 23 of adjacency between the isometric staple fibre of spacing P.
In addition, when the spacing of cutting knife 23 during less than 10mm, the discharge of staple fibre sometimes can not successfully be carried out, when surpassing 100mm, the pushing force of pushing roller 30 pairs of rotary cuttves 23 increases to the component of the front and back sides of the direction of rotation of cutting knife 23, produces the distortion of this cutting knife 23 or damage etc. sometimes.
3, the cone angle of the tapering 23b of cutting knife 23
Blade is not so long as take place and burst apart in the shape of this cutting knife, can make the discharge of staple fibre successfully carry out all can, there is no particular limitation.The cone angle of the tapering 23b of the cutting knife 23 of Fig. 3 is preferably 10-40 °, more preferably 14-31 ° of the cone angle of above-mentioned tapering 23b.If in this scope, can accomplish that then cutoff edge is indeformable, not damage, can keep its excellent cutting performance for a long time.
4, the shape of cutting knife 23
The shape of the tapering 23b of cutting knife 23 is not subjected to the qualification of illustrative example among Fig. 3, for example, can adopt the front end that makes above-mentioned tapering 23b and the two different segment structures of cone angle of base portion.At this moment, the cone angle of base portion is compared with the cone angle of front end and is preferably acute angle.Owing to acutangulate with the cone angle that the cone angle of front end is compared base portion, can make blade be difficult to burst apart, improve it and cut off performance, and the discharge of staple fibre also can more easily be carried out.
5, the height of cutting knife 23
The height overall of the tapering 23b of cutting knife 23 is not particularly limited among Fig. 3, but is preferably in 2.0-6.0mm, especially preferred 2.5-5.5mm.Though there is no particular limitation to the height overall of this cutting knife 23, can bear when cutting off intensity of force owing to will have, the discharge of staple fibre can successfully be carried out, be preferably below the 8-20mm especially preferred 10-15mm.
6, the length of cutting knife 23
Fig. 4 represents to be applicable to the relation of the thickness B of the L of effective length longitudinally of cutting knife 23 of roll-in cutter-type fiber beam cutting device of the present invention and cutting knife.At this, the L of effective length longitudinally of so-called above-mentioned cutting knife 23 is meant as shown in Figure 4, the cutting knife length of exposed portions serve between the pair of flanges 21,21 of cutting roller 20.In the present embodiment, the L of effective length longitudinally of above-mentioned cutting knife 23 is set at the identical size of the size of space between the relative two sides with the longitudinal length of above-mentioned cutting knife support plate 22 and each flange 21.
Can bear the intensity of force of the cut-out of fibre bundle 1 in order to ensure cutting knife, preferably set vertical effective length of cutting knife 23 in the thickness B of the circumferencial direction of cutting roller with respect to cutting knife 23.The thickness B of the length L of above-mentioned cutting knife 23 and cutting knife 23 preferably satisfies formula (L/100)＜B＜(L/10), especially effectively in the scope of (L/75)＜B＜(L/25).The thickness B of cutting knife 23 is preferably 0.5-2.0mm as mentioned above, therefore, with respect to the size of the thickness B of cutting knife 23, is set in 5mm＜L＜200mm scope the length L of cutting knife 23 effective especially.But, should in satisfying the scope of formula (L/100)＜B＜(L/10), set the length L of cutting knife 23 and the thickness B of cutting knife 23.
The length L of above-mentioned cutting knife 23 is during less than 5mm, and the diameter of the flange 21 of cutting roller 20 has to increase, and the cut-out performance of cutting knife 23 significantly reduces, and makes fibre bundle 1 be difficult to once cut off.When the length L of above-mentioned cutting knife 23 surpasses 200mm, owing to can not guarantee the intensity of cutting knife 23 and rigidity etc. reliably, take place that easily the distortion of cutting knife 23 and blade burst apart etc., can not guarantee to cut off reliably.In satisfying the scope of formula (L/100)＜B＜(L/10), be set in 5mm＜L＜200mm by length L with cutting knife 23, then needn't support cutting knife by come clamping as the existing U of being font cutoff edge support plate, can bear the great pushing force that when cut staple bundle 1, is applied to the part on the cutting knife 23, simultaneously, can improve the productivity ratio of staple fibre.
7, the surface roughness of cutting knife 23
The conical surface of the tapering 23b of this cutting knife 23 is with the surface roughness R of the general contact pin type roughness tester mensuration of using
ZValue is preferably 0.1-6.3 μ m.Preferably especially effective in the 0.5-1.6 mu m range.Can obtain high intensity and strong toughness, on above-mentioned cutting knife 23, obtain high-quality surface.
When above-mentioned tapering 23b is made different two sections of the cone angle of front end and base portion, the surface roughness R of the front end conical surface of this tapering 23b
ZValue is preferably 0.1-6.3 μ m, especially preferred 0.5-1.6 μ m.The surface roughness R of the base portion conical surface
ZValue is preferably 0.8-25.0 μ m, more preferably 3.2-12.5 μ m.Above-mentioned each surface roughness R
ZValue is not particularly limited, and for example, the surface roughness of the surface roughness of the base portion conical surface and the front end conical surface can be identical surface roughness.Use such surface roughness, can make staple fibre be not attached to the surface of cutting knife 23, be more conducive to staple fibre and successfully discharge.
8, the material of cutting knife 23
The material of cutting knife 23 so long as the material that in the cut-out of fibre bundle 1, does not cause distortion and damage etc. all can, be not particularly limited.For aforesaid action effect is manifested more, the material of suitably selecting cutting knife is effective.As the material of cutting knife 23, for example, use carbide alloy, compare with general carbon tool steel No. 5 (SK-5), because its coefficient of friction is low, have good low abrasion and chemical stability and good life-span, thereby effective especially.
9, the height of cutting knife support plate 22
The height of this cutting knife support plate 22, identical with above-mentioned cutting knife 23, can bear in the great pushing intensity of force that when fibre bundle 1 cuts off, produces so long as have, the discharge resistance that can reduce staple fibre gets final product, and there is no particular limitation.Best, the height of above-mentioned cutting knife support plate 22 is 5.0-20mm.The height of more preferably above-mentioned cutting knife support plate 22 is that 8.0-15mm is effective especially.
When the height of above-mentioned cutting knife support plate 22 during greater than 20mm, the discharge resistance of cut staple fibre increases, and the discharge of staple fibre can not successfully be carried out, and stops up or heavily cuts producing sometimes between the cutting knife support plate 22 of adjacency and/or between the cutting knife 23 of adjacency.In addition,, then can not bear the excessive pushing force of the part that produces when fibre bundle 1 cuts off, the distortion of above-mentioned cutting knife support plate 22 and cutting knife 23 etc. takes place sometimes, be difficult to obtain correct cut-out performance when the height of above-mentioned cutting knife support plate 22 during less than 5mm.
10, the material of cutting knife support plate 22
Using steel as the material of this cutting knife support plate 22 is effectively, effective especially because fibre bundle 1 does not produce distortion and damage etc. in cut-out.As the material of cutting knife support plate 22, it is effective especially for example using stainless steel or carbon steels for machine structural purposes.
11, productivity ratio
In the present invention, though there is no particular limitation to the productivity ratio of staple fibre, be 5kg/ minute-50kg/ minute, be effective especially during the fibre bundle that for example cuts off 50-300Tex with the speed more than 100 meters/minute.
Below, embodiment more specifically of the present invention is described with comparative example.And the mensuration and the evaluation assessment of characteristic value etc. are as follows.
1, very thin degree
According to the method for the 8-5-1A of JIS L-1015, measure the quality of 300 of fibers that are cut to 30mm, calculate on the occasion of very thin degree, try to achieve its mean value of 5 times.
2, crispation number
According to the method for the 8-12-1 of JIS L-1015, when on a fiber, hanging up the initial load of 0.18mNX incarnation numbers number, count the crispation number among every 25mm, ask 20 times mean value.Embodiment 1-17
The acrylic fiber bundle that will have very thin degree 150ktex crispation number, filamentary very thin degree 3.3dtex, fibre bundle of 11/25mm is wound on the cutting roller 20 of diameter 600mm as shown in Figure 1, cut off with pushing roller 30 pushing cutting knifes, obtain staple fibre.Cutting knife support plate 22 that use is made of carbon steels for machine structural purposes S25C and the cutting knife 23 that is made of carbide alloy are decided to be 5mm with the interval between the blade of pushing roller 30 and cutting knife 23.
And, with the thickness of cutting knife 23 and cutting knife support plate 22, the front end of cutting knife 23 and each cone angle of base portion, the height of the tapering 23b of cutting knife 23, the height overall of cutting knife 23, spacing P between each surface roughness of the conical surface of the front end of the height of the length of cutting knife 23, cutting knife support plate 22, cutting knife 23 and the conical surface of base end part and the cutting knife 23 of adjacency makes all changes, carries out various tests.It the results are shown in table 1.Comparative example 1-3
With the same condition of the foregoing description under, spacing P of 23 of the cutting knifes of each surface roughness of the conical surface of the front end of the height overall of the height of the tapering 23b of the cone angle of the cone angle of the front end of each thickness of cutting knife 23 and cutting knife support plate 22, cutting knife 23 and base end part, cutting knife 23, cutting knife 23, cutting knife 23 and the base end part conical surface and adjacency etc. is made all changes, carry out various tests.It the results are shown in table 1.Comparative example 4
Use is gripping the cutoff edge support plate that is the U font of cutting knife 23, and the spacing P between the cutting knife 23 of adjacency is taken as 20mm, adopts and above-mentioned method with sample, obtains the staple fibre that shearing length is 20mm.It the results are shown in table 1.
Table 1
| Cutting knife thickness (mm) | Prop up plate thickness (mm) | The spacing of cutting knife (mm) | The angle in tapering foremost | The angle in second section tapering | The length in tapering (mm) | The height of cutting knife (mm) | The length of cutting knife (mm) | The height of support plate (mm) | The surface roughness in tapering foremost | The surface roughness in second section tapering | Cut off performance | |||
| Fracture support plate distortion of blade | Shearing device stops up | Judge | ||||||||||||
| Embodiment 1 | ????0.5 | ????0.5 | ????20 | ????25 | ????20 | ????1.3 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Do not have | Substantially good |
| Embodiment 2 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Do not have | Well |
| Embodiment 3 | ????1.5 | ????1.5 | ????20 | ????25 | ????20 | ????4.1 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Do not have | Well |
| Embodiment 4 | ????2.0 | ????2.0 | ????20 | ????25 | ????20 | ????5.6 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 5 | ????1.0 | ????0.5 | ????20 | ????25 | ????20 | ????6.6 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Almost do not have | Substantially good |
| Embodiment 6 | ????1.0 | ????1.0 | ????10 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 7 | ????1.0 | ????1.0 | ????100 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Do not have | Well |
| Embodiment 8 | ????1.0 | ????1.0 | ????20 | ????40 | ????10 | ????4.2 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 9 | ????1.0 | ????1.0 | ????20 | ????40 | ????40 | ????1.3 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 10 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????7 | ????50 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Do not have | Substantially good |
| Embodiment 11 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????30 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 12 | ????1.0 | ????1.0 | ????20 | ????26 | ????20 | ????2.7 | ????15 | ????10 | ????10 | ????0.8μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 13 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????150 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Do not have | Substantially good |
| Embodiment 14 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????5 | ????3.5μm | ????6.3μm | Almost do not have | Do not have | Substantially good |
| Embodiment 15 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????20 | ????3.5μm | ????6.3μm | Do not have | Almost do not have | Substantially good |
| Embodiment 16 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????6.3μm | ????6.3μm | Almost do not have | Almost do not have | Substantially good |
| Embodiment 17 | ????1.0 | ????1.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????3.8μm | ????12.5μm | Almost do not have | Almost do not have | Substantially good |
| Comparative example 1 | ????0.3 | ????0.3 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Multiple | Do not have | Can not |
| Comparative example 2 | ????0.5 | ????1.0 | ????20 | ????26 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Take place | Can not |
| Comparative example 3 | ????2.5 | ????2.5 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Do not have | Take place | Can not |
| Comparative example 4 | ????1.0 | ????2.0 | ????20 | ????25 | ????20 | ????2.7 | ????15 | ????50 | ????10 | ????0.8μm | ????6.3μm | Almost do not have | Take place | Can not |
Claims (8)
1. roll-in cutter-type fiber beam cutting device has:
The cutting roller that a plurality of rectangle cutting knifes that the tapered knife blade arranged support with the cutting knife support plate and form in the mode on the circumferencial direction that the cutting knife support plate is fixedly installed on running roller by desired spacing and
Have the rotation parallel with the rotation of above-mentioned cutting roller, dispose relative with above-mentioned cutting roller, pushing is wound on the pushing roller of the fibre bundle on the above-mentioned cutting roller; It is characterized in that:
The thickness A of above-mentioned cutting knife support plate is thick unlike the thickness B of above-mentioned cutting knife, and above-mentioned cutting knife support plate do not protrude in above-mentioned cutting knife spacing direction the side and hold on the bottom surface of above-mentioned cutting knife.
2. roll-in cutter-type fiber beam cutting device according to claim 1, it is characterized in that: the thickness A of above-mentioned cutting knife support plate and the thickness B of cutting knife are 0.5-2.0mm.
3. roll-in cutter-type fiber beam cutting device according to claim 1 and 2 is characterized in that: the effective length L of the length direction of above-mentioned cutting knife and cutting knife should satisfy following formula (I) in the thickness B of the circumferencial direction of cutting roller:
(L/100)＜B＜(L/10)………(I)。
4. according to each described roll-in cutter-type fiber beam cutting device of claim 1-3, it is characterized in that: the spacing of above-mentioned cutting knife is: 10-100mm.
5. according to each described roll-in cutter-type fiber beam cutting device of claim 1-4, it is characterized in that: above-mentioned cutting knife constitutes by base portion with by the diminishing tapering of base portion forward end, and the cone angle in above-mentioned tapering is 10-40 °.
6. roll-in cutter-type fiber beam cutting device according to claim 5 is characterized in that: above-mentioned tapering is made of different two sections of the cone angle of its front and base portion side, and the cone angle of its base portion side and the cone angle of front are in a ratio of littler acute angle.
7. according to each described roll-in cutter-type fiber beam cutting device of claim 1-6, it is characterized in that: the height overall in above-mentioned tapering is 2.0-6.0mm, and the height overall of above-mentioned cutting knife is to be less than or equal to 20mm and greater than the height in above-mentioned tapering.
8. according to each described roll-in cutter-type fiber beam cutting device of claim 1-7, it is characterized in that: the Rz value of surface roughness of the conical surface of front of representing above-mentioned tapering is for 0.1-6.3 μ m, represents that the Rz value of surface roughness of the conical surface of above-mentioned base portion side is 0.8-25.0 μ m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002060574A JP2003268634A (en) | 2002-03-06 | 2002-03-06 | Roller cutter type fiber bundle-cutting device |
| JP2002060574 | 2002-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1442521A true CN1442521A (en) | 2003-09-17 |
| CN1313659C CN1313659C (en) | 2007-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031051855A Expired - Fee Related CN1313659C (en) | 2002-03-06 | 2003-03-05 | Rolling cutter type fibre bundle cut-off device |
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| Country | Link |
|---|---|
| JP (1) | JP2003268634A (en) |
| CN (1) | CN1313659C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483866A (en) * | 2016-01-06 | 2016-04-13 | 福州聚众鑫电子科技有限公司 | Staple fiber cutting-off machine |
| CN105839230A (en) * | 2016-05-27 | 2016-08-10 | 东莞市碳索复合材料有限公司 | Ultra-short cutting-off method and application of high-performance carbon fibers |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1393343B1 (en) * | 2008-04-18 | 2012-04-20 | Oerlikon Textile Gmbh & Co Kg | METHOD AND DEVICE FOR CUTTING WITH CONTINUITY OF FIBERS |
| CN102094263A (en) * | 2010-12-15 | 2011-06-15 | 重庆国际复合材料有限公司 | Fiber chopping machine |
| CN102817223B (en) * | 2012-08-25 | 2014-07-16 | 常州市第八纺织机械有限公司 | Yarn clamp for cutting of carbon fiber yarns |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62299519A (en) * | 1986-06-11 | 1987-12-26 | Teijin Ltd | Equipment for cutting fiber tow |
| JPH08144132A (en) * | 1994-11-16 | 1996-06-04 | Toyobo Co Ltd | Production of short fiber |
| JPH07305235A (en) * | 1994-05-09 | 1995-11-21 | Asahi Fiber Glass Co Ltd | Cutting blade for fiber bundle cutter |
| JP3364733B2 (en) * | 1995-07-10 | 2003-01-08 | 株式会社竹原機械研究所 | Fiber cutting equipment |
-
2002
- 2002-03-06 JP JP2002060574A patent/JP2003268634A/en active Pending
-
2003
- 2003-03-05 CN CNB031051855A patent/CN1313659C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483866A (en) * | 2016-01-06 | 2016-04-13 | 福州聚众鑫电子科技有限公司 | Staple fiber cutting-off machine |
| CN105839230A (en) * | 2016-05-27 | 2016-08-10 | 东莞市碳索复合材料有限公司 | Ultra-short cutting-off method and application of high-performance carbon fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003268634A (en) | 2003-09-25 |
| CN1313659C (en) | 2007-05-02 |
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