CN104726973A - Screen for friction spinning machine - Google Patents
Screen for friction spinning machine Download PDFInfo
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- CN104726973A CN104726973A CN201510045353.8A CN201510045353A CN104726973A CN 104726973 A CN104726973 A CN 104726973A CN 201510045353 A CN201510045353 A CN 201510045353A CN 104726973 A CN104726973 A CN 104726973A
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- Prior art keywords
- hollow circular
- tube
- spinning machine
- screen cloth
- spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention provides a screen for a friction spinning machine. The screen comprises a pair of spinning rollers rotating in the same direction, each spinning roller comprises a hollow circular tube, a hardening layer is arranged on the outer surface of each hollow circular tube, and the outer surface of each hollow circular tube is provided with a hole penetrating through the corresponding hardening layer and the tube wall of the corresponding hollow circular tube. Compared with a screen, manufactured through a traditional technology, for the friction spinning machine, the outer surface of each spinning roller in the screen has good hardness, and production requirements of fibers can be well met.
Description
Technical field
The present invention relates to friction spinning machine technical field, particularly relate to a kind of friction spinning machine screen cloth.
Background technology
The spinning of windage spinning machine utilizes machinery and aerodynamic Spinning Principle, moving screen surface is condensed upon by the fibers adsorption of shredding, by carrying out friction twisting and resultant yarn between revolving body surface and the fibre bundle condensing on it after filament or sliver feeding.At present, friction spun yarn has become one of spinning method that speed is higher, spinning suiting fiber is wide again.Wherein, as the screen cloth of one of the most crucial parts of windage spinning machine, under the driving of the quick renewal of spinning products, there has also been significant progress.Screen cloth comprises two spinning rollers, spinning roller is a Circular Thin metalloid part, it is the vital part for spinning on windage spinning machine, due to windage spinning machine operationally, spinning roller rotating speed can up to 2000-4500r/min, so have strict requirement to the dimensional accuracy of part and dynamic balancing; Spinning roller operationally, spins by rubbing, so piece surface is wear-resisting; Meanwhile, because rotating speed is very high, part material also will keep certain toughness.Having the requirement of dimensional accuracy during work, dynamically balanced requirement, there is difficulty in processing, especially processes the ten hundreds of aperture on spinning roller.In the method for tradition processing spinning roller surface aperture, mostly use the method such as machine drilling, punching.But adopt the methods such as traditional machine drilling, punching to manufacture spinning roller, the problem of manufacturing time length and inefficiency can be there is.Meanwhile, adopt the produced spinning rollers of method such as traditional machine drilling, punching when producing harder material, as glass fibre, can be low due to spinning roller outer surface hardness, and then cause screen cloth short for service life.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The object of the present invention is to provide a kind of friction spinning machine screen cloth.
The invention provides a kind of friction spinning machine screen cloth, comprise a pair pivotal in the same way spinning roller, each spinning roller comprises hollow circular-tube, and hollow circular-tube outer surface is provided with stiffening layer, and hollow circular-tube outer surface is provided with the hole of the tube wall of through stiffening layer and hollow circular-tube.
Friction spinning machine screen cloth provided by the invention, comprise a pair pivotal in the same way spinning roller, each spinning roller passes through in electroplating surface last layer stiffening layer, then carries out laser boring at the spinning roller outer surface through stiffened process, the final hole forming through stiffening layer and hollow circular-tube tube wall.Compared with the friction spinning machine screen cloth made by traditional handicraft, friction spinning machine screen cloth tool provided by the invention has the following advantages:
1, overcome spinning roller surface in conventional art and cannot increase the problem of hardness preferably, spinning roller outer surface (working face) hardness solving the manufacture such as the method that adopts traditional machine drilling, punching is low, not wear-resisting, the shortcomings such as service life is short, effectively service life was extended more than 24 months from original 3-6 month, there is significant effect.
2, production efficiency is high.With method machining smalls such as traditional machine drilling, punchings, general needs just can complete the making processing of a spinning roller for 70 hours, manufacture working (machining) efficiency is low, and adopts spinning roller processing method provided by the invention only to need 18 hours, drastically increases production efficiency.
3, on the spinning roller in friction spinning machine screen cloth, the precision in hole is much larger than traditional spinning roller, drastically increases the quality of spinning.
Accompanying drawing explanation
Below with reference to the accompanying drawings illustrate embodiments of the invention, above and other objects, features and advantages of the present invention can be understood more easily.Parts in accompanying drawing are just in order to illustrate principle of the present invention.In the accompanying drawings, same or similar technical characteristic or parts will adopt same or similar Reference numeral to represent.
The spinning roller profile that Fig. 1 provides for the embodiment of the present invention.
Description of reference numerals:
1-flange installed surface, 2-hole
Detailed description of the invention
With reference to the accompanying drawings embodiments of the invention are described.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawing or embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.
As shown in Figure 1, friction spinning machine screen cloth provided by the invention, comprise a pair pivotal in the same way spinning roller, each spinning roller comprises hollow circular-tube, hollow circular-tube outer surface is provided with stiffening layer, and hollow circular-tube outer surface is provided with the hole 2 of the tube wall of through stiffening layer and hollow circular-tube.
Because friction spinning machine needs to be used for producing glass fibre, glass fibre is harder, easily weares and teares, so need the case hardness increasing each spinning roller in friction spinning machine screen cloth, guarantees the quality of spinning.In the present embodiment, the outer surface of spinning roller powers on and plates one deck stiffening layer, can be used to the increase of the hardness realizing spinning roller outer surface; Carry out laser boring at the spinning roller outer surface through stiffened process, form the hole 2 of the tube wall of through stiffening layer and hollow circular-tube one by one on surface, be convenient to the flowing of spinning roller air in use, and then realize the surface of fibers adsorption at spinning roller.The spinning roller provided in the present embodiment is through technique such as plating stiffening layer and laser boring etc. and makes, its outer surface significantly increases hardness, simultaneously because laser boring is instantaneous high-temperature, the material impact of punching can be fallen, carry out the cooling of moment afterwards, be equivalent to quenching, increase the hardness of product further; Owing to adopting laser boring, therefore the precision in hole 2 has and improves significantly.
Preferably, stiffening layer is hard chrome coating, and the thickness of hard chrome coating is 0.04-0.05mm.
In the present embodiment, the stiffening layer formed at spinning roller outer surface is preferably hard chrome coating.Due to advantages such as hard chrome have matter extremely firmly, corrosion-resistant, can meet the requirement of spinning roller case hardness, durionise technology has higher development level in the prior art simultaneously, easy to operate.Further, the thickness forming hard chrome on the surface of hollow circular-tube is preferably 0.04-0.05mm, if can effectively ensure dynamic balance performance that hollow circular-tube is good plate thick lower than or higher than above-mentioned scope, again or circumferential thickness uneven, then can cause harmful effect to the dynamic balancing of part, the serious final spinning roller formed that causes is scrapped.
Preferably, the diameter in hole 2 is 0.85-0.95mm.
In the present embodiment, the diameter in hole 2 is preferably 0.85-0.95mm.Learn through test, when the diameter in hole 2 is set between 0.85-0.95mm, the spinning quality of spinning machine and operating efficiency reach a balance preferably.Wherein, the diameter in hole 2 has influence on the air pressure that air flows and surface is formed when spinning machine works on spinning roller, and then has influence on the quality of spinning and the efficiency of spinning.Further, when the diameter in hole 2 is set as 0.9mm, the balance between the spinning quality of spinning machine and operating efficiency reaches optimal value.
Preferably, the outer surface of spinning roller is provided with several punching circles, and punching circle is intervally arranged hole 2, and between adjacent punching circle, spacing is 0.4-0.5mm.
In the technique making spinning roller provided by the invention, the mode of laser boring adopts punching circle laddering, and every circle carries out laser boring again respectively, namely on every circle, lays a round 2.In the present embodiment, give the preferred value of spacing between adjacent punching circle, be spacing between adjacent punching circle equal, and spacing is 0.4-0.5mm, both can ensure that the spinning roller of final molding had good intensity, also control the density in the hole 2 on spinning roller surface better, form good air circulation ability and surperficial negative pressure ability, improve follow-up spinning quality.
Preferably, between adjacent punching circle, spacing is 0.45mm.
In the present embodiment, further the adjacent punching of setting enclose between spacing be 0.45mm, be 2, half hole.Learn through test, when between adjacent punching circle, spacing is 0.45mm, the bulk strength of spinning roller and spinning quality all reach best, have significant effect.
Preferably, arbitrary neighborhood hole 2 is equal with the angle that the center of circle that punching is enclosed is formed, and angle is 1.6-1.7 degree.
In the present embodiment, each punching circle is placed with equally spaced hole 2, namely arbitrary neighborhood hole 2 is equal with the angle that the center of circle that punching is enclosed is formed, further, this angle is 1.6-1.7 degree, the bulk strength of spinning roller and outer surface can be made like this to form air pressure ability and to reach an optimum balance, namely ensure that spinning roller will cause bulk strength significantly to reduce because of the increase of hole 2 quantity, also assures that the air bleed capability on spinning roller surface simultaneously, thus the spinning quality of spinning roller is significantly promoted.
Preferably, hollow circular-tube one end outer surface is provided with flange installed surface 1.
In the present embodiment, preferably one end of hollow circular-tube is provided with flange installed surface 1, is convenient to hollow circular-tube punches, be also convenient to the final spinning roller formed simultaneously and be arranged on spinning machine.
Preferably, hollow circular-tube is No. 20 seamless steel pipes.
In the present embodiment, the material of hollow circular-tube is preferably No. 20 seamless steel pipes.Compared with the steel such as 35# or 45#, because No. 20 seamless steel pipes have good intensity, the requirement meeting spinning roller that can be fabulous, simultaneously owing to being seamless steel pipe, there is the advantages such as material is relatively more even, allowance is few, the good dynamic balance of part, the performance of finished product spinning roller can be considerably improved, extend the service life of spinning roller.In the art, No. 20 above-mentioned seamless steel pipes can be not limited to as spinning roller raw material, as long as the material that can reach No. 20 seamless steel pipe performances can also as the raw material preparing spinning roller, therefore also in protection scope of the present invention.
Preferably, 0.1-0.4mm is spaced apart between two spinning rollers.
In the present embodiment, in friction spinning machine screen cloth, between two spinning rollers, interval is preferably 0.1-0.4mm.Spacing between two spinning rollers directly has influence on spinning roller surface and inner negative pressure value.Learn through inventor's test of many times, when being spaced apart 0.1-0.4mm between two spinning rollers, the negative pressure value of surface and inside can be effectively utilized, also can meet the dimensional requirement of general fibrous woven simultaneously.
Processing technology below in conjunction with spinning roller does deep description spinning roller provided by the invention.
The processing method of spinning roller provided by the invention, comprising: on the outer surface of hollow circular-tube, electroplate stiffening layer; Hollow circular-tube outer surface after plating stiffening layer carries out laser boring; The tube wall of the through stiffening layer in hole 2 and hollow circular-tube.
Because the spinning machine being provided with spinning roller needs to be used for producing glass fibre, glass fibre is harder, easily weares and teares, so need the case hardness increasing spinning roller, but spinning roller needs tens thousand of holes 2 of arranging on the surface, and the diameter in hole 2 is all at grade, and difficulty of processing is very large.The more important thing is, when increasing spinning roller case hardness, if first carry out adding hardness process on spinning roller surface, spinning roller case hardness can be caused to increase, adopt when the mechanical punching in traditional handicraft, boring and easily cause punching unsuccessfully, damage hollow circular-tube; If first punched, chromium knurl can be produced when durionise, cause hollow circular-tube to scrap.In the present embodiment, provide a kind of spinning roller processing method, efficiently solve the long-term insurmountable problem of prior art in this area, add the hardness on spinning roller surface, extend the service life of spinning roller significantly, reduce production cost.Wherein, the outer surface of hollow circular-tube is electroplated in stiffening layer step, need only electroplate the external cylindrical surface of part, and other face of spinning roller will tightly be protected, and makes it not be coated with stiffening layer, otherwise the scrapping of the spinning roller very easily caused.Hollow circular-tube outer surface after plating stiffening layer carries out laser boring, and the tube wall of the through stiffening layer in hole 2 and hollow circular-tube, is convenient to the circulation of air during operation here.Meanwhile, laser boring is instantaneous high-temperature, the material impact of punching can be fallen, carry out the cooling of moment afterwards, be equivalent to quenching, greatly can increase the hardness of product, improve the performance of product.
Preferably, electroplating time is 2-3 hour.
In the present embodiment, electroplating time preferably between 2-3 hour, to ensure thickness and the uniformity of hard chromium.If plate thick overproof or circumferential thickness is uneven, then cause harmful effect to the dynamic balancing of part, and then cause spinning roller easily to produce wearing and tearing when operating, serious causing scraps.
Preferably, before the outer surface of hollow circular-tube is electroplated the step of stiffening layer, also comprise and preliminary treatment carried out to hollow circular-tube, be specially:
Raw material for the preparation of spinning roller are carried out lathe roughing, completes the allowance of 90-95%; Annealing in process will be carried out through the rough machined raw material of lathe; The raw material of annealed process are carried out lathe fine finishining, completes remaining allowance; To be placed in dynamic balancer through the accurately machined raw material of lathe, carry out correction dynamic balancing, form hollow circular-tube.
In the present embodiment, further illustrate the pretreating process of hollow circular-tube, it comprises:
Raw material for the preparation of spinning roller are carried out lathe roughing, and car falls most of blank allowance, completes the allowance of 90-95%.Annealing in process being carried out through the rough machined raw material of lathe, and because the allowance of blank is larger, for preventing in process distortion, so will anneal, also can be used to eliminate the internal stress produced because of fine finishining simultaneously.The raw material of annealed process are carried out lathe fine finishining, completes remaining allowance, to ensure element precision.Correct dynamic balancing, namely utilize dynamic balancer to realize correction dynamic balancing, avoid raw material to cause the good finished product of following process to become substandard products owing to there is dynamically balanced problem, cause unnecessary waste.
Preferably, the hollow circular-tube outer surface after plating stiffening layer carries out laser boring, is specially: the hollow circular-tube after plating stiffening layer is placed in dynamic balancer, carries out correction dynamic balancing; Be fixed on by flange installed surface 1 on the self-centering chuck of three-shaft linkage servo-drive system, the other end keeps unsettled; From one end that hollow circular-tube is unsettled, laser boring is carried out according to preset program.
Further, preset program comprises:
Step a: hollow pipe adopts equivalent interruption to rotate, and carries out a laser boring within each rest periods, and formation diameter is the hole 2 of 0.85-0.95mm, until stop after completing punching in a week, with the axis of spinning roller for reference, each rotation 1.6-1.7 degree;
Step b: spinning roller is rotated 0.8-0.85 degree, traverse feed 0.45mm, repeat step a;
Step c: repeat step b, until spinning roller completes all punching work.
In the present embodiment, show in particular the mode of operation of laser boring, wherein carry out dynamic balance calibration, effectively can ensure that hollow circular-tube has good dynamic balance; Laser drilling device preferably adopts three-shaft linkage servo-drive system, can meet the three-dimensional motion of laser boring of the present invention well; Be fixed on by flange installed surface 1 on the self-centering chuck of three-shaft linkage servo-drive system, the other end keeps unsettled; Need to correct before hollow circular-tube locking, ensure that angle head cylindrical cylinder circular runout that part rotates a circle is within ± 0.03mm; The processing sequence in hole 2 is from that unsettled one end, and one encloses the land punching, is spaced apart 0.45mm between two adjacent rings, namely differs 2, half hole.There is an anglec of rotation between two adjacent rings, this angle is 0.8-0.85 degree simultaneously.In the present embodiment, 5 holes 2 in any region, hole 2 on the hollow circular-tube surface made, in plum blossom-shaped, ensure the intensity on hollow circular-tube surface effectively.And if employing passes through, beat line upon line, to the accumulation finally due to error, the distance between last row and first round 2 started is difficult to control, have influence on the dynamic balancing of part, the effect of punching is far away from the laser boring method provided in the present embodiment.
The spinning roller surface that the present invention makes has 30672 holes 2, often circle is equidistantly provided with 108 holes 2.In the art, the size of the spinning roller of final molding is determined according to concrete spinning machine, and the quantity of its surface holes 2 is also not limited to above-mentioned 30672.
Preferably, be also included in the correction dynamic balancing that the pipe outer surface after plating stiffening layer carries out before laser boring in spinning roller processing method, be specially:
Hollow circular-tube through plating is placed in dynamic balancer, carries out correction dynamic balancing.
Preferably, laser working medium is YAG crystal, and optical maser wavelength is 1064nm, and laser pulse repetition frequency is 20-30Hz, and pulse width is 0.5-1.1ms, and laser setting electric current is 150-200A.
In the present embodiment, the laser working medium selected is YAG crystal, and optical maser wavelength is 1064nm, and laser pulse repetition frequency is 20 ~ 30Hz, and pulse width is 0.5 ~ 1.1ms, and laser setting electric current is 150 ~ 200A, and assist gas is the compressed air through purification.Preferential above-mentioned parameter is the key of this part laser boring technique.Learn through test, when the setting parameter of laser is in above-mentioned scope, can accurately, efficiently lowly complete punching work, improve the precision of spinning roller, and then improve the quality of spinning.
Preferably, optical maser wavelength is 1064nm, and laser pulse repetition frequency is 25Hz, and pulse width is 0.8ms, and laser setting electric current is 180A.
In the present embodiment, furthermore present the setup parameter of the laser of implementation result the best.Learn through test, when laser working medium is YAG crystal, optical maser wavelength is 1064nm, laser pulse repetition frequency is 25Hz, and pulse width is 0.8ms, when laser setting electric current is 180A, the precision in the hole 2 on hollow circular-tube surface reaches best, drastically increases the quality of spinning.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a friction spinning machine screen cloth, it is characterized in that, comprise a pair pivotal in the same way spinning roller, each described spinning roller comprises hollow circular-tube, described hollow circular-tube outer surface is provided with stiffening layer, and described hollow circular-tube outer surface is provided with the hole of the tube wall of through described stiffening layer and described hollow circular-tube.
2. friction spinning machine screen cloth according to claim 1, is characterized in that, described stiffening layer is hard chrome coating, and the thickness of described hard chrome coating is 0.04-0.05mm.
3. friction spinning machine screen cloth as claimed in claim 1, it is characterized in that, the diameter in described hole is 0.85-0.95mm.
4. friction spinning machine screen cloth as claimed in claim 3, it is characterized in that, the diameter in described hole is 0.9mm.
5. friction spinning machine screen cloth as claimed in claim 1, is characterized in that, the outer surface of described spinning roller is provided with several punching circles, and described punching circle is intervally arranged described hole, and between adjacent punching circle, spacing is 0.4-0.5mm.
6. friction spinning machine screen cloth as claimed in claim 5, is characterized in that, between described adjacent punching circle, spacing is 0.45mm.
7. as claimed in claim 5 friction spinning machine screen cloth, is characterized in that, the upper any described adjacent holes of described punching circle is equal with the angle that the described center of circle enclosed of punching is formed, and described angle is 1.6-1.7 degree.
8. friction spinning machine screen cloth as claimed in claim 1, it is characterized in that, described hollow circular-tube one end outer surface is provided with flange installed surface.
9. the friction spinning machine screen cloth as described in claims 1-8 any one, is characterized in that, described hollow circular-tube is No. 20 seamless steel pipes.
10. the friction spinning machine screen cloth as described in claims 1-8 any one, is characterized in that, is spaced apart 0.1-0.4mm between described two spinning rollers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045353.8A CN104726973B (en) | 2015-01-28 | 2015-01-28 | Friction spinning machine screen cloth |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510045353.8A CN104726973B (en) | 2015-01-28 | 2015-01-28 | Friction spinning machine screen cloth |
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| CN104726973A true CN104726973A (en) | 2015-06-24 |
| CN104726973B CN104726973B (en) | 2017-07-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108779A (en) * | 1985-12-20 | 1987-07-22 | 联合碳化公司 | A kind of for the processing tensile part laser engraving, wear-resisting, the new ceramic used of friction roller or the metal carbide surface with and the method for manufacture method and processing tensile part |
| EP0267620A1 (en) * | 1986-11-13 | 1988-05-18 | Maschinenfabrik Rieter Ag | Friction-spinning roller |
| US4769983A (en) * | 1986-08-29 | 1988-09-13 | Fritz Stahlecker | Roller for an open-end friction spinning arrangement |
| US4882015A (en) * | 1986-11-13 | 1989-11-21 | Rieter Machine Works Ltd. | Method for manufacturing a perforated body, friction spinning means using the perforated body and a friction spinning device using the friction spinning means |
| US4968525A (en) * | 1986-11-13 | 1990-11-06 | Rieter Machine Works Ltd. | Method for production of friction spinning means |
| CN202809072U (en) * | 2012-07-27 | 2013-03-20 | 四川天亿纺织有限公司 | Drawing roller for cotton spinning |
-
2015
- 2015-01-28 CN CN201510045353.8A patent/CN104726973B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108779A (en) * | 1985-12-20 | 1987-07-22 | 联合碳化公司 | A kind of for the processing tensile part laser engraving, wear-resisting, the new ceramic used of friction roller or the metal carbide surface with and the method for manufacture method and processing tensile part |
| US4769983A (en) * | 1986-08-29 | 1988-09-13 | Fritz Stahlecker | Roller for an open-end friction spinning arrangement |
| EP0267620A1 (en) * | 1986-11-13 | 1988-05-18 | Maschinenfabrik Rieter Ag | Friction-spinning roller |
| US4882015A (en) * | 1986-11-13 | 1989-11-21 | Rieter Machine Works Ltd. | Method for manufacturing a perforated body, friction spinning means using the perforated body and a friction spinning device using the friction spinning means |
| US4968525A (en) * | 1986-11-13 | 1990-11-06 | Rieter Machine Works Ltd. | Method for production of friction spinning means |
| CN202809072U (en) * | 2012-07-27 | 2013-03-20 | 四川天亿纺织有限公司 | Drawing roller for cotton spinning |
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| CN104726973B (en) | 2017-07-25 |
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