CN203846185U - Color mixing and yarn forming device for rotor spinning - Google Patents
Color mixing and yarn forming device for rotor spinning Download PDFInfo
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- CN203846185U CN203846185U CN201420229715.XU CN201420229715U CN203846185U CN 203846185 U CN203846185 U CN 203846185U CN 201420229715 U CN201420229715 U CN 201420229715U CN 203846185 U CN203846185 U CN 203846185U
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- roller
- feed
- feeding
- feed roller
- yarn
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- 238000007383 open-end spinning Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000009987 spinning Methods 0.000 claims description 24
- 238000009960 carding Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 241000239290 Araneae Species 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004590 computer program Methods 0.000 abstract description 2
- 238000009940 knitting Methods 0.000 abstract 1
- 238000009941 weaving Methods 0.000 abstract 1
- 230000035611 feeding Effects 0.000 description 41
- 238000000034 method Methods 0.000 description 22
- 230000011218 segmentation Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- VOYADQIFGGIKAT-UHFFFAOYSA-N 1,3-dibutyl-4-hydroxy-2,6-dioxopyrimidine-5-carboximidamide Chemical compound CCCCn1c(O)c(C(N)=N)c(=O)n(CCCC)c1=O VOYADQIFGGIKAT-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 235000013351 cheese Nutrition 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 238000007378 ring spinning Methods 0.000 description 2
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Preliminary Treatment Of Fibers (AREA)
Abstract
本实用新型涉及一种转杯纺混色成纱装置，包括分条栅、喇叭口、一套同轴法兰活套式组合喂给罗拉、罗拉轴承、安装轴承支座，喂给板，以及相关的传动机构和控制装置，所述的同轴法兰活套式组合罗拉包括至少二个喂给罗拉，所述的传动机构包括至少二个步进电机或伺服电机、活套罗拉轴套及传动轴、轴承、齿型带轮、齿型带，链轮、链等，所述的控制装置包括一个电脑程序控制器及其传输电路。本实用新型结构较为简单，通过在转杯纺纱机上实施对至少二个喂给罗拉的独立控制，至少二根纤维条的喂入速度可控，且可在不同的时间段，各根纤维条喂入速度独立可变、或者同时可变，从而可用于生产短片段等线密度转杯纺段彩或非段彩混色纱、具有竹节或大肚纱效果的转杯纺段彩或非段彩花式纱线，或者具有超强时尚感的针织或机织用段彩或非段彩混色纱线。
The utility model relates to a mixed-color yarn forming device for rotor spinning, which comprises a slitting grid, a bell mouth, a set of coaxial flange looper type combined feeding rollers, roller bearings, bearing mounting supports, feeding plates, and related The transmission mechanism and control device, the coaxial flange looper combination roller includes at least two feed rollers, the transmission mechanism includes at least two stepping motors or servo motors, looper roller bushings and transmission Shafts, bearings, toothed pulleys, toothed belts, sprockets, chains, etc. The control device includes a computer program controller and its transmission circuit. The structure of the utility model is relatively simple. Through the independent control of at least two feeding rollers on the rotor spinning machine, the feeding speed of at least two fiber strips can be controlled, and each fiber strip can be fed at different time periods. Feed speeds can be varied independently or simultaneously to produce short segments of equal linear density rotor colored or non-segmented mixed color yarns, rotor-spun segmented or non-segmented yarns with slub or pot-bellied effects Fancy yarns, or segmented or non-segmented melange yarns for knitting or weaving for extra fashion.
Description
Technical field
The utility model belongs to Novel Spinning machine and manufactures field, relates in particular to a kind of Revolving cup spinning melange yarn apparatus for converting.
Background technology
Segment-colored mixed color yarn is a kind of yarn that is interrupted distribution that is at yarn longitudinal length direction yarn color.The means of producing at present segment-colored mixed color yarn have two kinds, and the one, adopt colouring method to yarn segmental dyeing longitudinally, its operation is more, and cost is high, and dyeing COLOR FASTNESS is poor, another kind is to adopt ring spinning method, this method has three roller methods and four roller methods at present, three roller methods are to utilize three roller drafting mechanisms of fine spining machine, and simply change, trunk heart yarn is from the feeding of apron middle roller, and auxiliary yarn feeds from rear roller, and by electronic or mechanical device, control auxiliary yarn and be interrupted feeding, thereby trunk heart yarn and auxiliary yarn are gathered the section of reaching color effect at apron roller place, apparent, this method resultant yarn is Bamboo-shaped, four roller methods are to adopt four rollers, three, the upper leather roller of four rollers adopts ladder roller to grip respectively two rove of feeding, trunk heart yarn feeds from the 4th roller, auxiliary yarn feeds from the 3rd roller, by cyclelog, control to wait upon and take motor and control respectively three, four roller Shift speed segmentallies and drive, in the dominant draft of first roller and the second roller formation, gather, realize segment-colored mixed color yarn effect, but above-mentioned two kinds of methods, owing to being subject to the restriction of mechanism, all with a certain group of fiber, take as the leading factor, it is color that another group fiber forms section as auxiliary yarn, four roller methods are with respect to three roller methods, because of three, the speed of four rollers is all adjustable, become Yarn Evenness evenness relatively will get well, but they are three years old, the spacing that four rollers are put relative the second apron roller to the gripping of rove is inconsistent, especially between the second apron roller and the 4th sieve space larger, be unsuitable for short-staple bar drawing-off spinning, simultaneously, three, four rollers to the gripping point of rove not in the same point of feeding rove length, can not be synchronously again with some position speed regulating control, to becoming Yarn Evenness evenly to exert an influence, technique is adjusted complicated.
Another waits line density RING SPINNING section coloured yarn resultant yarn method, it is characterized in that the special number of line density to be respectively T
first, T
secondfirst, two groups of ribbons of second, through lever jack, itemize grid feeding rear roller, by the fixedly rear roller and the kink rear roller that are arranged on same rear roller axle, controlled respectively, rear two roller speed setting, employing speed lotus root is closed equivalent feeding control method, make first, under the technological requirement that two groups of ribbons of second change in feeding speed segmentation, keep any period, first, two groups of ribbon feed quantity sums of second are fed to first break draft district unchangeably, after collection bar device boundling, with different draw ratio feeding middle rollers, front draft zone at spinning machine converges, drawing-off output through front roller, added and the line density section coloured yarn such as be twisted.In the method counter extensioin mechanism's first break draft district, a little less than the control of floating fiber, in production process, when two groups of ribbon checkers of first, second, easily produce weak joint, to Spinning Evenness, can produce certain negative effect with powerful.
Utility model content
The purpose of this utility model is to provide a kind of Revolving cup spinning colour mixture to become yarn feeding device, and device is by feed mechanism, carding agencies, impurities removal mechanism, cohesion twisting mechanism, winding mechanism, feed to transmission mechanism, control device forms, and described feed mechanism comprises itemize grid, horn mouth, a set of coaxial flange loop type combined roller, roller bearing, bearing spider is installed, feeding board, described stepper motor or the servomotor that comprises each feed roller of transmission to transmission mechanism of feeding, flute profile belt wheel, tooth-like belt, described control device comprises a Computerized controller and transmission circuit thereof, the running program of control step motor or servomotor, coaxial flange loop type combined roller in feed mechanism is at least comprised of two feed rollers, each feed roller rotates around same axle center, the feeding jaw that each feed roller and feeding board form is in same linear position, the stepper motor that each feed roller is controlled by Computerized controller respectively or servomotor drive, and rotate by the rotation program of setting, control the feeding speed of each one ribbon, each feed roller is identical with the outside diameter of ribbon contact position, and is arranged side by side, coaxial combination is arranged, and each feed roller is to adopt coaxial flange loop type combination each other, and the feed roller after combination drives, and adopts one-sided input mode.
During spinning, on rotor spinning machine, plurality of fibers bar is through itemize grid, horn mouth, feed roller feeding Fen Shu district, in Fen Shu district, fiber is subject to the shredding of combing roller, after combing effect, from combing roller, depart from and be transferred in carrier pipe, then enter rotor, in rotor through cohesion, mix and twist resultant yarn, finally by delivery device, draw and be wound into cheese, Revolving cup spinning colour mixture resultant yarn, the ribbon of spinning feeding is at least two and is divided into two groups of feedings, the ribbon color of feeding is different, or color combination is different, or fiber component is different, feed mechanism adopts Computerized controller to control, feed mechanism at least can independently be controlled two groups of ribbons, with different speed, or with the speed Xiang Fenshu district feeding ribbon changing at times, each one ribbon of feeding is to be admitted to carding agencies at same linear position, the filament of different colours or different components, shredding through combing roller, after combing effect, rely on the centrifugal force and the effect that fills into air-flow of combing roller, from combing roller, depart from and transfer in carrier pipe, departing from, in transfer and the coacervation process in rotor, many colors or multicomponent fibre are mixed and twisting again, be formed on and on resultant yarn length direction, there is plurality of color fiber combinations and change, or fibre composition combination changes, or the yarn of line density variation effect, feed roller in feed mechanism has two at least, different feeding rollers is all to rotate around same axle center, each feed roller is stepper motor or the servomotor drive of being controlled by Computerized controller, and each feed roller is at least controlled an one ribbon feeding, feeding ribbon A, B ..., i, its line density is respectively T
a, T
b..., T
i, ribbon A, B ..., the feed quantity of i respectively by the first feed roller, the second feed roller ..., i feed roller controls feeding, the first feed roller, the second feed roller ..., the linear speed of i feed roller is V
a, V
b..., V
i, arbitrary Δ t constantly in, total feed quantity of feed roller is (T
a* V
a+ T
b* V
b+ ...+T
i* V
i) * Δ t, V
a, V
b..., V
ion controlling, can keep lasting constant or adjustable, variable in different time period segmentations, the process programming of device operation is set and can be made (T
a* V
a+ T
b* V
b+ ...+T
i* V
i) * Δ t=constant, keeps feeding total amount with the change of each feed roller speed, not change, and forms the uniform colour mixture of line density or blended yarn, or within the different time periods, makes (T
a* V
a+ T
b* V
b+ ...+T
i* V
i) * Δ t ≠ constant, total feed quantity is pressed technique initialization and is changed, and forms melange yarn or blended slub yarn or tufted yarn that line density changes.
The beneficial effect that technical solutions of the utility model realize:
Adopt Rotor Spinning Technology, accomplish yarn particularly cross section and the length direction of cotton type fine-count yarn all have the color combination that short-movie section is different, keep again the bar evenness of yarn, existing production technology is difficult to realize; A kind of Revolving cup spinning colour mixture the utility model proposes becomes yarn feeding device, can on rotor spinning machine, realize the independent control of plurality of fibers bar grouping, on same feeding jaw line, speed change, segmentation feeding, again through a minute comb, shredding, mixing, cohesion, twisting resultant yarn, realize multicolour or many components Revolving cup spinning section coloured silk or non-segment-colored mixed color, mixed fiber yarn, and owing to having adopted Revolving cup spinning production technology, the mixed effect of color fibre in yarn is improved, the production efficiency of segment-colored mixed color, mixed fiber yarn is greatly improved, and is more conducive to the popularization that industrialization is produced.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of Revolving cup spinning color-mixture device of the utility model resultant yarn;
Fig. 2 is the operation principle schematic diagram of the coaxial flange loop type of the utility model combined roller embodiment;
Fig. 3 is the structural representation of the coaxial flange loop type of the utility model combined roller embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, describe the technical scheme of the utility model device in detail, the utility model embodiment is only for explanation concrete grammar, and its scale of the method is not subject to the restriction of embodiment.
Embodiment
Ribbon refers to rove bar or drafting extreme trace strip, and fiber is cotton type or wool type, take to feed three one ribbons to divide three groups of feedings be example.
As shown in Figure 1 and Figure 2, for take the Revolving cup spinning colour mixtures that three one ribbons are three groups of feedings, become the basic principle of yarn feeding device resultant yarn, Revolving cup spinning colour mixture becomes yarn feeding device the same with conventional rotor spinning machine, mainly by feed mechanism, carding agencies, impurities removal mechanism, cohesion twisting mechanism, winding mechanism, feed and form to transmission mechanism, control device, Revolving cup spinning colour mixture becomes yarn feeding device to adopt three one ribbons (A bar, B bar, C bar), minute three groups of feed mechanisms of sending into rotor spinning machine through itemize grid 1, horn mouth 2.This feed mechanism is comprised of coaxial flange loop type combined roller 4 feeding board 3 and a particular design, that speed can independently be controlled, A, B, C tri-one ribbons respectively the first feed roller 41, the second feed roller 42, the 3rd feed roller 43 in coaxial flange loop type combined roller 4 are controlled, and are flowed to combing roller 5 by the same linear position in friction speed ground; Fen Shu district, revolution combing roller 5 shreddings that the ribbon of feeding is coated with card clothing become filament, and produce mixing and the colour mixture of multicomponent fiber.Filament after shredding travels forward with combing roller 5, relies on the centrifugal force and the effect that fills into air-flow of combing roller 5, from combing roller 5, departs from and transfers in carrier pipe 6, then enters rotor 7.Fiber moves to rotor 7 inwalls along separator 8, under centrifugal action, along inclined-plane, slides to collection surface, and is overlapped into annular twisting cohesion sliver.The resultant yarn of having been twisted is drawn by doffing tube 9, through delivery roller 10, by means of groove drum 11, finally by the winding shaping mechanism section of being coiled into coloured silk or non-segment-colored mixed color cheese 12.
As Fig. 2, shown in Fig. 3, coaxial flange loop type combined roller comprises the first feed roller 41, the second feed roller 42, the 3rd feed roller 43, clutch shaft bearing 4211, the second bearing 4212, the 3rd bearing 4311, the 4th bearing 4312, the first axle sleeve 412, the second axle sleeve 422, the first flute profile belt wheel 413, the second flute profile belt wheel 423, the 3rd flute profile belt wheel 433, the first tooth-like belt 414, the second tooth-like belt 424, the 3rd tooth-like belt 434, shaft end ring 44, round nut 45, clutch shaft bearing seat 46, the power transmission shaft of the second bearing block 47 and three independent rotation feed rollers etc., the first feed roller 41, the second feed roller 42, the 3rd feed roller 43 is identical with the roller outside diameter of ribbon contact position, and be arranged side by side, coaxial combination is arranged, each feed roller is to adopt coaxial flange loop type combination each other, feed roller after combination drives, adopt one-sided input mode.
During normal spinning, A, B, C tri-one ribbons are controlled feeding by the first feed roller on coaxial flange loop type combined roller, the second feed roller, the 3rd feed roller respectively, the first feed roller, the second feed roller, the 3rd feed roller are driven by the servomotor or the stepper motor that controlled by Computerized controller respectively, and its each surface of roller linear speed contacting with ribbon is respectively V
a, V
band V
c, V
a, V
band V
cwith the setting of computer program, can change separately or synchronously, the arbitrary Δ t in spinning process is in the moment, total the feed quantity of coaxial flange loop type combined roller Xiang Fenshu district feeding is (T
a* V
a+ T
b* V
b+ T
c* V
c) * Δ t, technique needs, by controlling V
a, V
band V
cfeeding speed, thereby control the fibrous feed quantity of each feeding roller, control total feed quantity of coaxial flange loop type combined roller, change the line density of respectively organizing fiber content or yarn that forms yarn, the ribbon of coaxial flange loop type combined roller feeding, is fed to behind Fen Shu district, by combing roller, carries out shredding and a minute comb, fiber after minute comb departs from and transfers in carrier pipe from combing roller, then enters rotor; The filament of different color or component again mixes, condenses and twists in rotor, the fiber that formation has monochrome or polychrome or many components mixes, the formation section of having color effect or different component segmentation change combination, have Revolving cup spinning colour mixture or the blended yarn of uniform line density or variation line density.
In device, in the coaxial flange loop type combined roller transmission of feed mechanism and control, the first feed roller, the second feed roller and the 3rd feed roller pass through respectively axle sleeve, flute profile belt wheel, tooth-like belt by three transmission shaft drivens, its rotating speed is controlled by Computerized controller, can it be fed and be set with time slice to parameter, V
a, V
b, V
con controlling, sustainable maintenance is constant or adjustable, variable in different time period segmentations, and technique initialization can make (T
a* V
a+ T
b* V
b+ T
c* V
c) * Δ t=constant, keeps feeding total amount with the change of each feed roller speed, not change, and formation waits line density yarn, or within the different time periods, makes (T
a* V
a+ T
b* V
b+ T
c* V
c) * Δ t ≠ constant, total feed quantity is pressed technique initialization and is changed, and forms Revolving cup spinning ring or large tripe melange yarn.
Claims (3)
1. Revolving cup spinning colour mixture becomes a yarn feeding device, and device is by feed mechanism, carding agencies, impurities removal mechanism, cohesion twisting mechanism, winding mechanism, feed to transmission mechanism, control device forms, and described feed mechanism comprises itemize grid, horn mouth, a set of coaxial flange loop type combined roller, roller bearing, bearing spider is installed, feeding board, described stepper motor or the servomotor that comprises each feed roller of transmission to transmission mechanism of feeding, flute profile belt wheel, tooth-like belt, described control device comprises a Computerized controller and transmission circuit thereof, the running program of control step motor or servomotor, it is characterized in that the coaxial flange loop type combined roller in feed mechanism is at least comprised of two feed rollers, each feed roller rotates around same axle center, the feeding jaw that each feed roller and feeding board form is in same linear position, the stepper motor that each feed roller is controlled by Computerized controller respectively or servomotor drive, and rotate by the rotation program of setting, control the feeding speed of each one ribbon.
2. a kind of Revolving cup spinning colour mixture according to claim 1 becomes yarn feeding device, it is characterized in that each feed roller is identical with the outside diameter of ribbon contact position, and is arranged side by side, coaxial combination arrangement.
3. a kind of Revolving cup spinning colour mixture according to claim 1 becomes yarn feeding device, it is characterized in that each feed roller is to adopt coaxial flange loop type combination each other, and the feed roller after combination drives, and adopts one-sided input mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229715.XU CN203846185U (en) | 2014-04-25 | 2014-04-25 | Color mixing and yarn forming device for rotor spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229715.XU CN203846185U (en) | 2014-04-25 | 2014-04-25 | Color mixing and yarn forming device for rotor spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846185U true CN203846185U (en) | 2014-09-24 |
Family
ID=51559222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229715.XU Expired - Lifetime CN203846185U (en) | 2014-04-25 | 2014-04-25 | Color mixing and yarn forming device for rotor spinning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203846185U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938322A (en) * | 2014-04-25 | 2014-07-23 | 嘉兴学院 | Rotor spinning melange yarn forming method and device and product |
| CN106048823A (en) * | 2016-08-11 | 2016-10-26 | 苏州维杰纺织有限公司 | Anti-breakage producing apparatus for core-spun yarns |
| CN106087130A (en) * | 2016-08-01 | 2016-11-09 | 东华大学 | A kind of color matching method of colored fibre |
| WO2017031610A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and device for five-sliver asynchronous inputting and three-level carding |
| WO2017031612A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and apparatus using three-cotton-sliver asynchronous input and multi-stage carding |
| WO2017031611A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and device for four-sliver asynchronous inputting and three-level carding |
| CN107829175A (en) * | 2017-12-05 | 2018-03-23 | 浙江万利纺织机械有限公司 | A kind of transmission device of false twisting two-for-one twister |
| WO2020048903A1 (en) * | 2018-09-04 | 2020-03-12 | Saurer Spinning Solutions Gmbh & Co. Kg | Production of fancy yarn by means of an open-end rotor spinning device |
| CN111501150A (en) * | 2020-04-13 | 2020-08-07 | 东华大学 | A kind of rotor spinning bulked yarn and preparation method thereof |
| CN117026443A (en) * | 2023-07-27 | 2023-11-10 | 江南大学 | A device and method for self-stopping of multi-channel rotor color spinning fiber strips after end breakage |
-
2014
- 2014-04-25 CN CN201420229715.XU patent/CN203846185U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938322A (en) * | 2014-04-25 | 2014-07-23 | 嘉兴学院 | Rotor spinning melange yarn forming method and device and product |
| CN103938322B (en) * | 2014-04-25 | 2017-03-15 | 嘉兴学院 | A kind of Revolving cup spinning colour mixture resultant yarn method and device and product |
| WO2017031610A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and device for five-sliver asynchronous inputting and three-level carding |
| WO2017031612A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and apparatus using three-cotton-sliver asynchronous input and multi-stage carding |
| WO2017031611A1 (en) * | 2015-08-21 | 2017-03-02 | 江南大学 | Rotor spinning method and device for four-sliver asynchronous inputting and three-level carding |
| CN106087130A (en) * | 2016-08-01 | 2016-11-09 | 东华大学 | A kind of color matching method of colored fibre |
| CN106048823A (en) * | 2016-08-11 | 2016-10-26 | 苏州维杰纺织有限公司 | Anti-breakage producing apparatus for core-spun yarns |
| CN107829175A (en) * | 2017-12-05 | 2018-03-23 | 浙江万利纺织机械有限公司 | A kind of transmission device of false twisting two-for-one twister |
| WO2020048903A1 (en) * | 2018-09-04 | 2020-03-12 | Saurer Spinning Solutions Gmbh & Co. Kg | Production of fancy yarn by means of an open-end rotor spinning device |
| CN111501150A (en) * | 2020-04-13 | 2020-08-07 | 东华大学 | A kind of rotor spinning bulked yarn and preparation method thereof |
| CN117026443A (en) * | 2023-07-27 | 2023-11-10 | 江南大学 | A device and method for self-stopping of multi-channel rotor color spinning fiber strips after end breakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |