CN101845691A - The device that is used for individually actuating open-end spinning rotors - Google Patents
The device that is used for individually actuating open-end spinning rotors Download PDFInfo
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- CN101845691A CN101845691A CN201010148977A CN201010148977A CN101845691A CN 101845691 A CN101845691 A CN 101845691A CN 201010148977 A CN201010148977 A CN 201010148977A CN 201010148977 A CN201010148977 A CN 201010148977A CN 101845691 A CN101845691 A CN 101845691A
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- disk
- motor
- axis body
- end 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
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
- D01H4/12—Rotor bearings; Arrangements for driving or stopping
-
- 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
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
- D01H4/12—Rotor bearings; Arrangements for driving or stopping
- D01H4/14—Rotor driven by an electric motor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Centrifugal Separators (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The device that is used for individually actuating open-end spinning rotors (1) rotation, wherein the axis body of revolving cup is supported by " two disk " device, wherein one or more bearings of the parallel axes of " two disk " support member are made of the motor of individually actuating, to rotatablely move and pass to two axles of " two disk " support member, the axis body (2) that described two axles rotatablely move this again and pass to revolving cup (1).
Description
Technical field
The present invention relates to " free end " spinning, open-end spinning just.Free-end spinning machine is made of a plurality of independent spinning units usually, and this spinning unit is arranged on two fronts of machine, and provides service by common service unit.Spinning unit mainly is made up of spinning rotary cup and collector unit, thereby spinning rotary cup produces line by the fiber twisting of the described singularization of the rove that will be provided by the yarn feeding assembly, collector unit is collected from the yarn of revolving cup and with it and is wound up in the bobbin, reach the standard grade at described bobbin and to be reeled with coil form by feed carrier, feed carrier on the outer surface of the bobbin of rotation itself with the mode distributing line of axially reciprocating.
Background technology
The productivity ratio strictness of free-end spinning machine depends on the rotary speed of spinning rotary cup, must produce the yarn with every meter clear and definite twisting count.In the evolution of free end technology, the rotary speed of revolving cup has been significantly increased in nearest free-end spinning machine above 150,000 rev/mins.In the free end technology of being established, the actuating of the revolving cup of open-end-spinning unit aligned with each other is implemented by common driving belt on machine two fronts, described driving belt applies tangential tractive force on---being known as axis body usually---according to the positive axially operation of machine and at axle, this axle is positioned at the spinning rotary cup back, described band is coupling with this by the pressure roller maintenance and touches, and described pressure roller is known as guide wheel.Such actuating device produces some resultant results.The rotary speed of the spinning rotary cup that is provided with along the front of machine, but is tended to especially reduce for long machine to the afterbody difference from the head of machine.
Along with increase from the distance of the actuating point of driving belt, described driving belt passes to along a so positive spinning unit of arranging according to the positive axially operation of machine and with driving torque, the tension force of spinning unit is along with the increase from the distance that activates point progressively reduces, and changes transmissible torque thus.Such species diversity is transformed into along giving yarn different twisting counts in the spinning unit of the front setting of machine.This defective significantly takes place when revolving cup is in steady operational status, but can become the defective of bigger degree when revolving cup is in transition stage.
For such actuation configuration, each spinning unit is equipped with braking and clutch apparatus with the single spinning unit of independent operation, in transition stage basis " disconnection-closure (off-on) " logic it is separated from common actuating device.
The demand of the high rotation speed of revolving cup has been satisfied in such actuating that spinning rotary cup is activated by common driving belt well, but its others for open-end-spinning have serious defective.These shortcomings are based on being produced by corresponding positive drive ratio between each parts of machine, produce in transition stage especially, produce during joint again after incipient stage and each yarn breakage, but also, speed is brought up to present numerical value cause the energy resource consumption of transmission generally to be exponential increase owing to above all such facts.
The concrete defective of conventional system is as follows:
-can not be during joint step the more accurate speed of control revolving cup, its must carry out in incomplete speed (partial speed) (stable operation speed again joint be impossible).In order to have stabilized quality in joint, when joint again, no matter the axial coordinate (coordinate) of spinning unit, rotor speed is constant to be very important.Really, the tension force that must consider common driving belt is along with progressively reducing from the increase of the distance that activates head, and thus, therefore transferable torque changes.At present " disconnection-closure " brake that reduces by the operation revolving cup at joint stage medium velocity again carries out in the mode that is similar to, and does not have the precision of actual hope;
-can not be in case just control the acceleration (accelerationramp) of revolving cup when joint takes place again, other parameter controlled (the feeding of band given and the extraction of yarn, is used for the specific device of the maintaining car of joint by appointment again) similarly;
-along with operating rate increases and the high-energy source consumption of the exponential increase that causes, because the energy loss of driving belt, described driving belt stands a considerable amount of trickle deflections at each revolving cup and guide wheel place and at the driving wheel of the head of machine with at the reverse wheel place of the afterbody of machine.Along with speed increases, the rotary speed of wheel and the corresponding increase in tension force ground that is applied to the required bigger power of last transmission;
-very large noise because many elements are with rotation at a high speed and to their bearing imposed load, and since band along machine to move linearly the aerodynamic noise that produces above 70 meter per seconds;
The braking problem of-spinning rotary cup: it should and stop before spinning unit is opened in the very short time.In traditional open-end-spinning unit, the actuating of brake and the axis body of revolving cup and the actuating that separates of band and opening synchronously of revolving cup can produce danger thus;
-act on the quick wearing and tearing of the brake block on the axis body of revolving cup, need frequent effort and replacing with high costs, and the most important thing is in the uneven performance of transition stage; This defective is not easy to differentiate, in addition also is not easy to control the joint quality and/or the joint success rate of each spinning unit;
The pollution of-power-transmission system: band, guide wheel, revolving cup and wheel.Fiber and comprising from the dust deposit of the wearing and tearing of brake block being with of motion, and spread on all parts of machine.Therefore it must carry out often and spend huge clean operation, particularly in drive area, and because the quick wearing and tearing of band and tape swapping more.
In order to overcome these defectives, therefore the recent tendency that activates for the high speed of spinning rotary cup points to the single driving of the revolving cup of each open-end-spinning unit.
In the prior art, with respect to the suggestion of single driving be propose recently and have a lot, for example at patent US4,916,891, US6,516,601, US6,590, in 307 and US6,668,536, in patent application US2005/0279076 and US2007/0132329, in patent application DE10 2005023517, DE10 2,006 043376, WO2003/038166, WO2005/075719 and WO2008/000335.
In order to implement this independent actuating with the speed more than 150,000 rev/mins, owing to there is technical problem at a high speed at present.For the direct actuating by motor, the direct driving of revolving cup needs motor to have 2500Hz and above supply frequency, as a kind of replacement form of motor, has proposed to use the air turbine of the axis body that is connected to revolving cup.A significant obstacle of this single driving suggestion of extensive use is the current reliability of bearing in serving continuously that activated with this rotary speed; Many above-mentioned prior art documents relate to use noncontact magnetic bearing, to support motor and the spinning rotary cup that directly is linked together.
Summary of the invention
The present invention relates to a kind of single driving spinning rotary cup that is used for---just " free end "---with the device that runs up.
The objective of the invention is to make a kind of device that is used for the single driving open-end spinning rotors, it has overcome the defective of the device that proposes in the prior art, and has the output of the efficient of higher reliability, higher spinning machine and spinning machine and the better quality of the yarn that will obtain.
In order more clearly to describe the technical scheme that the technical problem that will solve and the present invention propose, in the following description, therefore the form with non-limiting instance proposes a kind of independent actuation configuration, and clear and definite prerequisite is that it also can use different motors with having superiority.
The individually actuating device that is used for the open-end-spinning unit according to the present invention is limited with its critical piece first claim, and its version and preferred implementation are clear and definite in the dependent claims and qualification.
In order to clearly show that feature of the present invention and advantage, with reference to being described in its exemplary embodiment shown in Fig. 1-3 as non-limiting instance.
The configuration of the individually actuating of open-end spinning rotors is illustrated schematically in the left side view that the front view represented with Reference numeral A, vertical view that Reference numeral B represents and reference number C represent.This configuration using is known in the art and support with " two disk " known spinning rotary cup, for example according to patent US4, and 916,891 and WO2003/038166.This support member is made of two base support, and each of this base support leans against two pairs of upper blocks on the disk by a pair of coaxial disk and the axial compression with revolving cup and constitute.The axle of the axle of spinning rotary cup, two pairs of support disk and the axle of guide wheel are parallel.
About this point, should note, in " two disk " support system, we refer to their " substantially parallel " when saying that two axles are parallel, because in fact the measure of Cai Yonging be slight inclination that their are installed so that on the revolving cup of rotation, produce axial force, this axial force makes revolving cup press the cod of its back and prevents any axially-movable.When the disk of describing " two disk " support member with parallel axes to the time, therefore this be suitable for.
Document according to these prior aries, at patent US4, under 916,891 the situation, " two disk " support member is activated by the separate electrical motor that is connected to upper block, is perhaps activated by a separate electrical motor to support disk that is connected to support disk centering under the situation of WO2003/038166.
In the document of these prior aries, find the driving torque of the axis body acceptance of spinning rotary cup O-E from independent spinner member, and must keep two other element rotation successively, be the necessary driving torque of resistance that overcomes them to this two other element transmission.Therefore so in this embodiment two idle running elements constitute the brake of spinning rotary cup rotation.
Description of drawings
Particularly, propose in the foregoing different embodiments of the present invention hereinafter:
-in Figure 1A, B, C, have the support disk of an independent motor and " two disk ", the support disk coplane of described " two disk " and according to they excircle toward each other, and be connected with other a pair of support disk by a driving belt,
-in Fig. 2 A, B, C, have two motors, motor of the support disk of every pair " two disk ", the support disk coplane of described " two disk " and according to they excircle toward each other,
-in Fig. 3 A, B, C, have two motors, motor of the support disk of every pair " two disk ", the support disk of described " two disk " is coplane not, but axially staggered; The propping up of axis body that such embodiment can make " two disk " to go up revolving cup leaned on highly rising, avoids axis body the box-uping between two circular discs of this revolving cup.
The specific embodiment
The accompanying drawing of above-mentioned three embodiments, according to three front views, vertical view and side views, show critical piece of the present invention: motor, two disk support, spinning rotary cup with relevant axis body, the supporting construction of guide wheel and spinning unit, wherein mark D and S represent the right side and the element left side, Fig. 2 A, B, C with reference to having the embodiment of two motors illustrate following element:
-1) rotor of the spinning rotary cup that rotates at a high speed,
-2) the columned axis body of spinning rotary cup, it rests on the back side of cod,
-3) cod, it remains on an axial coordinate place that determines with revolving cup,
-4
S) stator of first motor (be positioned at left side), this first motor spring bearings that comprise it and the two disk support in left side
-5
S) axle of first motor
-4
D) stator of second motor (being positioned at the right side), this second motor spring bearings that comprise it and the two disk support in right side
-5
D) axle of second motor, two axles 5 are parallel to each other and be parallel to the axis of axis body 2,
-6
SWith 6
D) left side and front, the right side disk of two disk support, the axis body 2 of spinning rotary cup 1 rests on this left side and front, the right side disk, and the axle of this left side and front, right side disk and their motor forms one,
-7
SWith 7
D) left side and the back side, the right side disk of two disk support, the axis body 2 of spinning rotary cup 1 rests on this left side and the back side, the right side disk, and the axle of this left side and the back side, right side disk and their motor forms one,
(as mentioned above, in Fig. 1-2, right side and left side disk coplane be provided with and according to they excircle toward each other, and in Fig. 3 their coplanes not, but axially staggered and relatively be close together thus their axle between distance less than their diameter),
The fixed support structure of-whole actuating device,
-9) guide wheel on the axis body 2 of spinning rotary cup 1 is to keep the revolving cup level and for good and all to rest on disk 6
S, D, 7
S, DTwo disk support on, described disk 6
S, D, 7
S, DBe pressed against on the axis body of revolving cup, its periphery disk 20 is around axle 21 idle running, and described axle 21 is parallel to disk 6
S, D, 7
S, DThe axle 5.Axle 21 is like this supported by support bar 22, described support bar 22 at steady pin 23 places hinged and by spring 24 to pressing down, lean on to keep 2 permanent of axis bodies,
-10
S) rotor of first left motor,
-10
D) rotor of second right motor,
" two disk " bracing or strutting arrangement of the axis body 2 of spinning rotary cup 1 schematically is similar to the bracing or strutting arrangement that uses in the traditional actuating device with vertical driving belt according to aforesaid U.S. Pat 4,916,891 for example.Specific characteristic of the present invention is the rotor of one or two individually actuating motor is replaced with the spring bearing of one or two " two disk ", and the shell of described individually actuating motor rests on the fixed structure of machine.The axle 5 of the revolving cup 10 of one or two motor like this is outstanding and total with " two disk " support member in their end: disk 6
S, D, 7
S, DBe fixed on these the ledge.Two this disks are right---right side and left side disk are right---is motorized and transmits the torque of ordering about axis body 2 rotation, and they are no longer as according to United States Patent (USP) 4,916, and 891 tradition " two disk " support member equally dallies.The spring bearing of the rotor 10 of motor is also as disk 6
S, D, 7
S, DSupport member.The axis body 2 of spinning rotary cup is by motor-driven disk 6
S, D, 7
S, DOuter field friction dragged rotation, the axis body of this spinning rotary cup is pressed against above them by guide wheel 9.
In the drive arrangements of Fig. 2 A, B, C, show two motors as an example, 5 one motors of every axle also are feasible but different technology activates scheme, the main contents in these possibility schemes are as follows:
-Figure 1A, B, C: at disk to 6
S, D, 7
S, DIn a disk to last separate electrical motor, for example on the right side to disk 6
D, 7
DOn have motor 4
D, and another is to disk 6
S, 7
SDragged by transmission device.For example, from the axle 5 of the same motor of first pair of disk
DArrive the left side disk to 6
S, 7
SAn axle 5S to adopt flat band transmission 30 be feasible, therefore the two pairs of disks all be motor-driven and can transmitting torque to the axis body of revolving cup;
-according to the embodiment of Fig. 3 A, B, C and disk 6 wherein
S, D, 7
S, DThe difference of embodiment formerly of coplane,
-only as an example, its show by with similar two driven by motor of the configuration of Fig. 3---two disk support the axle 5
SWith 5
DNear each other, make the support disk 6 of the axis body of revolving cup
S, D, 7
S, DAxially staggered, the axle of two disk support interpenetrates and revolving cup is supported on more eminence.An embodiment has like this avoided the axis body of revolving cup at disk 6
S, D, 7
S, DBetween the risk of box-uping, and reduced the horizontal volume of device.This is applicable to implementing higher gearratio.
Under by two motor-driven situations, motor of every pair of disk, therefore work in coordination in generation of torque and with transmission of torque these two motors in the process of spinning rotary cup, in steady operational status and transition stage, the speed of two motors is all kept equating by strictness.
According to preferred implementation of the present invention, motor-driven optimal way is estimated to utilize motor, even the first kind of actuating mode (Fig. 1) that exemplifies above also can be by different motor activated, for example the compressed air turbine.In motor, the special recommendation synchronous motor, the FREQUENCY CONTROL motor of preferred brushless or other type is having suitable high synchronization between mutually under the situation of two motors, as shown in Fig. 2 and 3.
Actuating for single spinning rotary cup, need small-power and than the motor of low torque, therefore the actuating of motor can directly be controlled by a microprocessor or control panel, and it can act on each spinning unit separately or even also can serve a plurality of spinning units simultaneously.
The two pairs of right sides and left disk 6
S, D, 7
S, DPreferably have identical diameter and be assembled in its motor or stator 4
S, DThe axle 5 of parallel and level
S, DOn, wheelbase (axle base) is slightly larger than the diameter of disk in according to the embodiment of the configuration of Fig. 1 and 2, and on the other hand according to the configuration wheelbase of Fig. 3 diameter less than disk.
In order between motor and spinning rotary cup, to obtain enough transmissions, disk 6
S, D, 7
S, DThe preferred diameter of size remain between 60 millimeters-100 millimeters, and the preferred diameter of size of the axis body 2 of spinning rotary cup 1 remains between 6 millimeters-10 millimeters, the gearratio between motor and the spinning rotary cup 1 remains between the 6-15.
Usually, guide wheel 9 supports and will lack than " the two disk " that be positioned at the below, and rests on the axis body 2 of revolving cup 1, is positioned at disk to 6
S, D, 7
S, DBetween the gap in.Install one to its spring of exerting pressure 24 on supporting, if necessary, this spring can easily raise to discharge the axis body of revolving cup.
The separately indirectly actuating device that is used for the open-end-spinning unit according to the present invention is with respect to the directly progress of actuating device with essence separately of prior art.During these are progressive the most significant one be for motor and for the bearing in the indirect actuating scheme according to the present invention sharply the reducing of required rotary speed.Therefore obvious two pairs of disks all are driven with identical speed with transition stage in steady operational status.
Still with reference to the required very high rotary speed of spinning rotary cup, the use of " two disk " support member that is provided with between motor and spinning rotary cup allows conclusive speed reducing ratio.For example, by making the outer dia of two disks 6,7 equal ten times of axis body 2 diameters of spinning rotary cup, obtain 1: 10 gearratio: still in order to give 150,000 rev/mins required speed of revolving cup, the rotary speed of the needs of motor and relative bearing is reduced to 15,000 rev/mins.The steady rotation speed of required such size is lower and more acceptant in continuous use for motor and bearing.With the motor of 250Hz work and FREQUENCY CONTROL and with the motor requirement more required of the mechanical bearing of 15,000 rev/mins of work than those direct driving spinning rotary cups lack some and more reliable.Such motor is provided by relevant manufacturer with bearing and carries out routine and sell.
In other advantage that obtains with respect to traditional open-end-spinning machine:
-lower energy resource consumption saves about 25% in the actuating of motor;
-noise sharply reduces, because eliminated the maximum noise source of open-end-spinning machine;
-simplifying spinning unit---reduces it to the demand of maintenance and spare unit---because eliminated braking and the clutch apparatus that it is separated from total actuating device;
-higher quality of connection is because can accurately control the speed of joint and acceleration binding clip subsequently again;
-along the constant airspeed of the spinning unit in machine front, and it is constant indirectly to give the viscosity of yarn, avoids the typical case of belt driver to slide;
-significantly reduce the cleaning of spinning unit and the demand of maintenance.
With according to U.S. Pat 4,916,891 or the technical scheme of use " two disk " support member of WO2003/038166 compare, technical scheme according to the present invention makes it possible to by two pairs of support disk torque is delivered to the axis body of spinning rotary cup O-E, than much bigger (for the big twice of situation of identical system's physical dimension and identical guide wheel load) that allowed by single rotary-actuated element, and can avoid this spinner member as the brake of the rotation of spinning rotary cup.
Claims (7)
1. the device that is used for individually actuating open-end spinning rotors (1) rotation, rotatablely move and be delivered to the axis body (2) of this open-end spinning rotors by this device indirectly, wherein said axis body is supported by so-called " two disk " device, should " two disk " install by two pairs of front disks (6
S, D) and back side disk (7
S, D) constitute, described disk is mounted to the axle (5 of the axis that is parallel to described axis body (2)
S, 5
D) on, described axis body (2) is held by guide wheel (9) and props up by described two pairs of disks (6
S, D, 7
S, D) the face of cylinder and be compressed against above them, described guide wheel (9) is made of the 3rd pair of disk (20), is assemblied in to be parallel to described disk (6
S, D, 7
S, D) two axles (5
S, 5
D) axle (21) on also,
It is characterized in that: the parallel axes (5 of " two disk " support member
S, 5
D) one or two bearing by the rotor (10 of one or two individually actuating motor
S, D) constitute, described motor has their shell is rested on stator (4 on the fixed structure (8)
S, D), generation is used to activate two axles (5
S, 5
D) rotation and the two pairs of right sides and left side disk (6
S, D, 7
S, D) motion of rotation, by friction this motion is delivered to the axis body (2) of described revolving cup (1) again.
2. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 1 is characterized in that: described actuating is carried out by independent motor, and described motor is at described two pairs of disks (6
D, 7
DOr 6s, 7s) pair of discs be provided with stator (4
DOr 4
S), another is pulled by the transmission device (30) that is connected to same motor disk, make described two pairs of disks in steady operational status, all be driven, and can will be used to activate the axis body of the transmission of torque of rotation to described spinning rotary cup with identical speed with transition stage.
3. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 1 is characterized in that: activate by having described stator (4
S, D) two motors carry out, motor of every pair of disk is passing to rotating torques in the process of described spinning rotary cup (1), no matter be in steady operational status or transition stage, described disk all is complementary with the speed of two motors, and the speed of described two motors is identical.
4. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 1 is characterized in that: described actuating is carried out by the synchronous motor of FREQUENCY CONTROL.
5. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 4, it is characterized in that: described actuating is carried out by brushless electric machine.
6. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 1 is characterized in that: carry out activating with the gearratio of 6-15 between motor and revolving cup (1).
7. the device that is used for individually actuating open-end spinning rotors (1) rotation according to claim 1 is characterized in that: the axle (5 of two disk support
S, 5
D) be set to than disk (6
S, D, 7
S, D) separating distance that diameter is littler is opened, so that described disc shaft is to staggered.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2009A000473A IT1393534B1 (en) | 2009-03-26 | 2009-03-26 | OPEN-END SPIN ROTOR INDIVIDUAL OPERATION DEVICE |
| ITMI2009A000473 | 2009-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101845691A true CN101845691A (en) | 2010-09-29 |
| CN101845691B CN101845691B (en) | 2014-02-26 |
Family
ID=41227130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010148977.XA Active CN101845691B (en) | 2009-03-26 | 2010-03-25 | Device for individually actuating open-end spinning rotors |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2233617B1 (en) |
| CN (1) | CN101845691B (en) |
| IT (1) | IT1393534B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741278A (en) * | 2013-12-31 | 2014-04-23 | 浙江日发纺织机械股份有限公司 | Micro-motion yarn guiding drive device of rotor spinning machine |
| CN109072494A (en) * | 2016-05-13 | 2018-12-21 | 立达英格尔施塔特有限公司 | The spinning rotor and open-end spinning device with the liner for increasing coefficient of friction made of elastomeric material for open-end spinning device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015013484A1 (en) | 2015-10-16 | 2017-04-20 | Saurer Germany Gmbh & Co. Kg | Open-end rotor spinning device with a spinning rotor, which is mounted with its rotor shaft in the gusset of a support disk bearing |
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- 2010-03-25 CN CN201010148977.XA patent/CN101845691B/en active Active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103741278A (en) * | 2013-12-31 | 2014-04-23 | 浙江日发纺织机械股份有限公司 | Micro-motion yarn guiding drive device of rotor spinning machine |
| CN109072494A (en) * | 2016-05-13 | 2018-12-21 | 立达英格尔施塔特有限公司 | The spinning rotor and open-end spinning device with the liner for increasing coefficient of friction made of elastomeric material for open-end spinning device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2233617A1 (en) | 2010-09-29 |
| EP2233617B1 (en) | 2013-04-03 |
| CN101845691B (en) | 2014-02-26 |
| IT1393534B1 (en) | 2012-04-27 |
| ITMI20090473A1 (en) | 2010-09-27 |
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