CN102978754A - Rotor spinning machine - Google Patents
Rotor spinning machine Download PDFInfo
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- CN102978754A CN102978754A CN2012103164108A CN201210316410A CN102978754A CN 102978754 A CN102978754 A CN 102978754A CN 2012103164108 A CN2012103164108 A CN 2012103164108A CN 201210316410 A CN201210316410 A CN 201210316410A CN 102978754 A CN102978754 A CN 102978754A
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- open
- end spinning
- yarn
- rotor
- spinning frame
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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
- D01H4/42—Control of driving or stopping
- D01H4/44—Control of driving or stopping in rotor spinning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to a rotor spinning machine (1) which comprises several work stations (2), each having a spinning rotor (21). A drive unit (22) performs variable-speed drive of the spinning rotor. A measuring unit (23) detects the thread breaks, and an evaluation unit (24) detects the yarn breakage rate. According to the invention, the rotor spinning machine comprises a control unit (25) which is configured to be used for adjusting the speed of spinning rotors (21) automatically in dependence on the respectively determined yarn breakage rate, and thus controlling the yarn breakage rate, so that the yarn breakage rate is below a predetermined maximum yarn breakage rate.
Description
Technical field
The present invention relates to open-end spinning frame, it has a plurality of stations that a rotor respectively arranged, be used for drive unit that variable speed ground drives rotor, for detection of the measuring mechanism of Yarn break with for the analysis institution that obtains the broken yarn rate.
Background technology
Open-end spinning frame has a plurality of stations.On each station, ready fiber skein is supplied to spinning apparatus in the ribbon cylinder.Spinning apparatus comprises rotor, rotor in spinning process one by the revolving cup housing that bears negative pressure of cover closure in high speed rotary.Spun yarn is pulled out and is wound into cross winding bobbin by exhaustion mechanism from spinning apparatus.
German utility model Patent Application Publication DE 7148737U discloses a kind of CD-ROM drive motor, it is by rotating band that is common to all rotors of stepless adjustment actuator drives, and the driving of pulling out roller of this exhaustion mechanism realizes by another stepless adjustment transmission device, this another stepless adjustment transmission device itself and can follow the adjustment transmission device that drives for revolving cup to be adjusted.Adjusting drive unit can be conditioned by the handwheel on the machine end, thereby this rotor can carry out for whole machine is concentrated with the adjustment of rotational speed of pulling out roller.
EP 1 612 308 A2 disclose a kind of rotor, and it accepts the driving effect of motor independent driving device.Utilize such drive unit, the yarning cup speed on each yarning position can be individually adjusted.
According to DE 7148737 U, can a plurality of adjusters, measuring instrument, display and switch be set in a plurality of suitable machine places.This also comprises the broken end counter for each yarning position, and it can be operated by yarn monitor according to known way.
In rotor spinning, in the revolving cup groove of rotor, realized yarn formation.Here, the fiber that falls to putting is twisted because of the moment of torsion of revolution yarn and thread head.Twisted has produced and has pulled out the needed yarn strength of yarn.When pulling out yarn in the revolving cup groove, yarn must have and is higher than in revolving cup the centrifugal intensity of force that is produced by the yarn revolution.Otherwise, yarn will be in the revolving cup zone with regard to spallation.Almost in the constant situation, the centrifugal force of the yarn and thread head of rotation increases with the secondary power form along with the increase of rotational speed of rotor in frictional force.For this reason, rotational speed of rotor doubles to cause four times yarn tension in the revolving cup zone.Yarn breakage in the revolving cup zone is dangerous thereby along with rotor speed increases and increases.
The quantity that the broken end eliminating machine that provides is provided in the received broken yarn rate of open-end spinning frame energy in service (Fadenbruchrate).At this moment, the broken yarn rate is the Yarn break number about the working time of open-end spinning frame or a station.Broken end is eliminated by receiving cripper.Connecing yarn can semi-automaticly carry out, that is, connecing yarn needs operating personnel.Connecing yarn also can carry out automatically by connecing the yarn mule carriage.Also know such equipment, wherein, can be on a station automatically finish connecing yarn in self-centered mode.In the first situation, the operating personnel's that provide quantity is provided acceptable Yarn break number.In the second situation, the broken yarn rate of allowing is connect the yarn mule carriage and is determined by many.When in self-sufficient mode when many stations connect yarn, many receiving crippers how can work simultaneously and don't can affect supply enough large negative pressure be important.Because there is described condition, so, can determine the highest broken yarn quantity of allowing.
The spinning speed of open-end spinning frame and and then productivity ratio increase and improve along with rotor speed.Therefore, people expect that rotor is with the highest possibility rotation speed operation.
Because many influence factors are arranged, so can not the highest rotational speed of rotor of Analysis deterrmination.Rotational speed of rotor can only be determined by operating personnel by test, and here, as long as a parameter changes, namely for example yarn parameter changes or adopts another revolving cup, and then maximum speed must redefine.Finishing test is that complexity and staff are intensive.Perhaps even can't accomplish to produce maximization.
Summary of the invention
Therefore, a task of the present invention is to improve the productivity ratio of open-end spinning frame.
According to the present invention, this task will be finished by the characteristic feature of claim 1.Favourable improvement project of the present invention is the theme of dependent claims.
In order to finish this task, open-end spinning frame comprises controlling organization, described controlling organization is configured to automatically adjust the rotating speed of rotor and adjust thus this broken yarn rate according to the broken yarn rate of determining respectively, thereby the broken yarn rate is in the ideal range of the regulation that is lower than the highest broken yarn rate.
That is, according to the present invention, open-end spinning frame has control loop in order to adjust the broken yarn rate, and here, the broken yarn rate is as controlled variable, and yarning cup speed is as regulating parameter.By adjustment of the present invention, yarning cup speed can be regulated automatically, and does not exceed the highest broken yarn rate of allowing.Operating personnel only need to be scheduled to be used on the desirable broken yarn rate of control loop.In other words, the invention provides a kind of can the best simple possible mode of regulating yarning cup speed and boosting productivity thus.
According to a preferred embodiment, described controlling organization also is configured to so limit yarning cup speed, that is, be no more than the maximum speed of regulation and be not less than the minimum speed of regulation.In this way, the other factors that affects permissible revolution can be considered into.Therefore, for example yarn qualities has been stipulated confidence band.For security consideration, should not surpass maximum speed.
This controlling organization preferably includes comparison mechanism, and this comparison mechanism construction is used for determining the difference of actual broken yarn rate and desirable broken yarn rate.And these controlling organizations can comprise adjuster, and this adjuster is adjusted yarning cup speed according to this difference.A plurality of stations of open-end spinning frame generally have for the yarn exhaustion mechanism that pulls out spun yarn from rotor with for the feed roller of fiber skein being fed to rotor.
This controlling organization preferably is configured to so control the yarn exhaustion mechanism, that is, the yarn speed of pulling out will be adjusted according to yarning cup speed, thereby keeps the yarn parameter of regulation.In addition, these controlling organizations can be configured to so control this feed roller, and namely the feed roller rotating speed will be adjusted according to yarning cup speed, thereby keep the yarn parameter of regulation.Pull out speed and fiber skein feeding speed by adjusting yarn, yarning cup speed can change in the larger context, and yarn parameter can marked change.Desired yarn qualities can be produced acquisition with maximum productivity.
According to a preferred embodiment, these analysis institutions are configured to determine the broken yarn rate mean value of a plurality of stations, and these controlling organizations are configured to so regulate the yarning cup speed of a plurality of stations, that is, broken yarn rate mean value is in the ideal range of regulation.
Feasible is that a plurality of stations comprise whole stations of open-end spinning frame.It is not too important how driving in the case this rotor.In other words, for this adjustment, it is unessential that a plurality of rotors are driven by individual drive by the rotor of center driven or a station.
But, a plurality of stations preferably only comprise a part of station of open-end spinning frame.In the case, the drive unit that provides and the yarn that has the different yarns parameter and be spun at rotor spinning machine simultaneously can be provided better in the adjustment of rotational speed of rotor.Therefore, according to a preferred embodiment, described a plurality of stations consist of one batch.In other words, mean value calculates based on the station that spins the yarn with identical parameters respectively.
Generally, a plurality of stations are arranged on the both sides of open-end spinning frame.Described a plurality of station can comprise all stations of a side.When a plurality of rotors that such solution especially is used in each side drive in central mode.By adjusting the mean value that is used for each side, so that the restriction of center driven is taken into account.Simultaneously, can stipulate different yarn parameters in both sides, each side turns round under the highest possible rotational speed of rotor.
According to a preferred alternate embodiments, these analysis institutions are configured to determine the broken yarn rate of an independent station, and this drive unit and controlling organization are configured to adjust the broken yarn rate of this independent station.In the situation that the broken yarn rate on each station is independently adjusted, controlling organization and drive unit all must correspondingly consist of.Preferably each rotor has an individual drive.In such embodiments, each station can be by optimum utilization, and this rotor can be with its maximum speed running.On each station, can stipulate different yarn parameters.In addition, because other parts of rotor and station have inevitable mismachining tolerance, so the maximum speed that appears on each station may be fully different.
Description of drawings
Describe the present invention in detail below with reference to embodiment shown in the drawings, wherein:
Fig. 1 illustrates open-end spinning frame of the present invention,
Fig. 2 is the side view of the station of open-end spinning frame of the present invention, and
Fig. 3 is the schematic diagram that the broken yarn rate is adjusted.
The specific embodiment
Fig. 1 illustrates the open-end spinning frame 1 with a plurality of stations 2.On each station 2, ready fiber skein 4 is supplied to open end spinning apparatus 5 in ribbon cylinder 3, and spun yarn 6 is pulled out and be wound into cross winding bobbin 8 from open end spinning apparatus 5.These stations 2 all have a station computer 10, and it is being controlled the operating mechanism of station 2 and is linking to each other with central control unit 12 by bus system 11.
Fig. 2 illustrates the side view of open-end spinning frame 1.Because the both sides of machine 1 are symmetrical formations, so, the side with station 2 only is shown in Fig. 2.Station 2 is equipped with spinning apparatus 5 and winding mechanism 9.In open end spinning apparatus 5, the fiber skein 4 that will be fed in the ribbon cylinder 3 by rotor 21 is woven into spun yarn 9, and spun yarn is wound into yarn bobbin 8 at winding mechanism 4.In order to drive rotor 21, be provided with in the present embodiment individual drive 22, it is arranged on each station.
In the yarn route, be provided with gage outfit 23 on the station 2.Gage outfit 23 is parts of yarn clearer, and yarn clearer is monitored yarn qualities and perhaps started the removal of flaw yarn point.In an illustrated embodiment, gage outfit 23 is simultaneously as yarn monitor.In other words, utilize gage outfit 23 to monitor and whether have yarn.Also feasible is that an independent gage outfit is used as yarn monitor.Under any circumstance, can both detect undesirable broken end by this mode.Gage outfit 23 links to each other with station computer 10 by control line 27.For analysis to measure head signal and obtain the broken yarn rate, station controlling organization 10 comprises analysis institution 24.And station controlling organization 10 comprises the controlling organization 25 for control broken yarn rate.For the rotating speed predetermined value is transferred to the drive unit 22 of rotor 2 from station controlling organization 10 or controlling organization 25, be provided with control line 28.Perhaps, analysis institution 24 and controlling organization 25 can be the parts of central control unit 12.The signal of the gage outfit 23 of a station 2 is transferred to central control unit 12 by bus system 11 subsequently.On the contrary, this rotating speed predetermined value is provided for the independent driving device 22 of rotor 21 by bus system.In a unshowned alternate embodiments, this rotating speed predetermined value is transferred to a center drive of a plurality of rotors 21 of a plurality of stations.When not being the independent broken yarn rate that will be adjusted on the station, but will adjust the broken yarn rate mean value of a plurality of stations 2 of open-end spinning frame the time, it is especially favourable that analysis institution 24 and controlling organization 25 are arranged in the central control unit 12.The adjustment of mean value for example can be used to one batch station, and this is because the yarn that is spun at one batch station has identical yarn parameter.Be provided with in the situation of a center drive at a plurality of rotors 21 for open-end spinning frame 1 one sides, can adjust the broken yarn rate mean value of a side station.
Fig. 3 illustrates the circuit block diagram for the control loop of the present invention of adjusting broken yarn rate F.To ideal value F of control loop regulation
Soll, i.e. desirable broken yarn rate.Determine the actual value F of broken yarn rate by mechanism 33
Ist, actual broken yarn rate namely.Actual broken yarn rate F
IstNot only can be the actual value of a station, also can be the mean value of the actual value of a plurality of stations.In the embodiment that illustrates before, mechanism 33 is made of gage outfit 23 and analysis institution 25.Relatively mechanism 34 obtains actual broken yarn rate F
IstWith desirable broken yarn rate F
SollDifference DELTA F.This passes through desirable broken yarn rate F with plain mode
SollWith actual broken yarn rate F
IstAsking poor realizes.Difference DELTA F is the input signal for adjuster 30.Adjuster 30 provides executive signal subsequently, and this executive signal here is rotational speed N
StellRotational speed N
StellCan be used as the rotating speed predetermined value and be used to individual drive 22 or a center drive.But in an illustrated embodiment, after adjuster 30, be provided with limiter 32.The effect of limiter is the minimum speed that does not exceed the maximum speed of regulation and be not lower than regulation.The predetermined of maximum speed and minimum speed for example can finish at the operating unit of central control unit by operating personnel.Limiter provides output signal N
BRelatively mechanism 34, adjuster 30 and limiter 32 are parts of controlling organization 25.This ideal broken yarn rate F
SollAlso can for example be scheduled to by the operating unit of this central control unit by operating personnel.In an illustrated embodiment, the output signal N of limiter
BAs the rotating speed predetermined value or the executive signal that are used for sections 31.Sections 31 is not only to be made of individual drive 22 or a center drive, but is made of each station yet.So, from executive signal N
BPerhaps alternatively from N
StellIn obtain actual broken yarn rate F
IstIn correct design adjuster 30 situations, behind initial duration of oscillation stable state appears.By feeding back actual broken yarn rate F
Ist, when interference effect is arranged, automatically revise the rotating speed predetermined value.
In order to keep the yarn parameter of regulation, the rotating speed of the speed of yarn exhaustion mechanism 16 and feed roller 14 can be adjusted according to the separately rotating speed of rotor 21.At this moment, the simplest adjustment mode is the speed of pulling out and feeding speed and the relatively in proportion variation of rotor 21 rotating speeds.
Claims (12)
1. an open-end spinning frame (1), it comprises:
A plurality of stations (2), these stations have respectively a rotor (21);
Drive unit (22), it is used for variable speed ground and drives this rotor (21);
Measuring mechanism (23) for detection of broken yarn;
Be used for determining the analysis institution (24) of broken yarn rate,
It is characterized in that,
This open-end spinning frame (1) comprises controlling organization (25), described controlling organization is configured to automatically regulate according to the broken yarn rate of determining respectively the rotating speed of this rotor (21), and so control thus the broken yarn rate, so that the broken yarn rate is in being lower than the predetermined ideal scope of the highest broken yarn rate.
2. open-end spinning frame according to claim 1 (1), it is characterized in that, this controlling organization (25) also is configured to so limit the rotating speed of this rotor (21), that is, be no more than predetermined maximum speed and be not less than predetermined minimum speed.
3. according to the described open-end spinning frame of one of aforementioned claim (1), it is characterized in that this controlling organization (25) comprises comparison mechanism (34), this comparison mechanism design is used for determining actual broken yarn rate (F
Ist) and desirable broken yarn rate (F
Soll) between difference (Δ F).
4. open-end spinning frame according to claim 3 (1) is characterized in that, this controlling organization (25) comprises adjuster, and this adjuster is adjusted the rotating speed of this rotor (21) according to this difference (Δ F).
5. according to the described open-end spinning frame of one of aforementioned claim (1), it is characterized in that, these stations (2) have respectively a yarn exhaustion mechanism (16), in order to from this rotor (21), to pull out spun yarn (6), and this controlling organization (25) is configured to so control this yarn exhaustion mechanism (16), so that the yarn speed of pulling out is adjusted according to the rotating speed of this rotor (21), thereby keep the yarn parameter of regulation.
6. according to the described open-end spinning frame of one of aforementioned claim (1), it is characterized in that, these stations (2) have respectively a feed roller (14), in order to fiber skein (4) is fed to this rotor (21), and this controlling organization (25) is configured to so control this feed roller (14), so that the rotating speed of this feed roller is adjusted according to the rotating speed of this rotor (21), thereby keep the yarn parameter of regulation.
7. according to the described open-end spinning frame of one of aforementioned claim (1), it is characterized in that, this analysis institution (24) is configured to determine the broken yarn rate mean value of described a plurality of station (2), and this drive unit (22) and this controlling organization (25) are configured to regulate the yarning cup speed of described a plurality of station (2), thereby so that this broken yarn rate average bits in the regulation ideal range in.
8. open-end spinning frame according to claim 7 (1) is characterized in that, described a plurality of stations (2) comprise all stations of open-end spinning frame (1).
9. open-end spinning frame according to claim 7 (1) is characterized in that, described a plurality of stations (2) only comprise a part of station of open-end spinning frame (1).
10. open-end spinning frame according to claim 9 (1) is characterized in that, described a plurality of stations (2) consist of one batch.
11. open-end spinning frame according to claim 9 (1) is characterized in that, is provided with a plurality of stations (2) in the both sides of this open-end spinning frame (1), described a plurality of stations (2) comprise all stations of a side.
12. according to claim 1 to one of 6 described open-end spinning frames (1), it is characterized in that, this analysis institution (24) is configured to determine the broken yarn rate of an independent station (2), and this drive unit (22) and this controlling organization (25) are configured to adjust the broken yarn rate of this independent station (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011112364A DE102011112364A1 (en) | 2011-09-02 | 2011-09-02 | Open-end rotor spinning machine |
| DE102011112364.8 | 2011-09-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102978754A true CN102978754A (en) | 2013-03-20 |
| CN102978754B CN102978754B (en) | 2017-03-01 |
Family
ID=46796241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210316410.8A Active CN102978754B (en) | 2011-09-02 | 2012-08-30 | Open-end spinning frame |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2565306B1 (en) |
| CN (1) | CN102978754B (en) |
| DE (1) | DE102011112364A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523906A (en) * | 2016-06-15 | 2017-12-29 | 立达英格尔施塔特有限公司 | For the method for the production for optimizing rotor spinning machine |
| CN107893270A (en) * | 2016-10-04 | 2018-04-10 | 索若德国两合股份有限公司 | The operation method and open end spinning apparatus of open end spinning apparatus |
| CN112095188A (en) * | 2019-06-18 | 2020-12-18 | 卓郎纺织解决方案两合股份有限公司 | Optimization of operation of spinning machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7052683B2 (en) * | 2018-11-13 | 2022-04-12 | 株式会社豊田自動織機 | Spindle control method and spindle control device for spinning machine |
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| DE3605829A1 (en) * | 1986-02-22 | 1987-08-27 | Fritz Stahlecker | Method for controlling the yarn draw-off during the piecing of a spinning unit of an open-end spinning machine |
| CN86105942A (en) * | 1986-09-03 | 1988-03-23 | 中央韧皮纤维工业科学研究所 | The method of control spinning machine and implement the device of this method |
| EP0541483A1 (en) * | 1991-11-08 | 1993-05-12 | Maschinenfabrik Rieter Ag | Process control in the textile field |
| US20080041029A1 (en) * | 2004-11-02 | 2008-02-21 | Maschinenfabrik Rieter Ag | Process for Optimizing the Production Performance of a Spinning Machine |
| CN101328628A (en) * | 2007-06-19 | 2008-12-24 | 浙江日发纺织机械有限公司 | High speed semiautomatic rotor spinning machine |
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| DE102004029020A1 (en) | 2004-06-16 | 2005-12-29 | Saurer Gmbh & Co. Kg | Method and apparatus for operating an open-end rotor spinning device |
-
2011
- 2011-09-02 DE DE102011112364A patent/DE102011112364A1/en active Pending
-
2012
- 2012-08-21 EP EP12005963.9A patent/EP2565306B1/en active Active
- 2012-08-30 CN CN201210316410.8A patent/CN102978754B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3605829A1 (en) * | 1986-02-22 | 1987-08-27 | Fritz Stahlecker | Method for controlling the yarn draw-off during the piecing of a spinning unit of an open-end spinning machine |
| CN86105942A (en) * | 1986-09-03 | 1988-03-23 | 中央韧皮纤维工业科学研究所 | The method of control spinning machine and implement the device of this method |
| EP0541483A1 (en) * | 1991-11-08 | 1993-05-12 | Maschinenfabrik Rieter Ag | Process control in the textile field |
| US20080041029A1 (en) * | 2004-11-02 | 2008-02-21 | Maschinenfabrik Rieter Ag | Process for Optimizing the Production Performance of a Spinning Machine |
| CN101328628A (en) * | 2007-06-19 | 2008-12-24 | 浙江日发纺织机械有限公司 | High speed semiautomatic rotor spinning machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107523906A (en) * | 2016-06-15 | 2017-12-29 | 立达英格尔施塔特有限公司 | For the method for the production for optimizing rotor spinning machine |
| CN107523906B (en) * | 2016-06-15 | 2021-11-16 | 立达英格尔施塔特有限公司 | Method for optimizing the production of a rotor spinning machine |
| CN114164526A (en) * | 2016-06-15 | 2022-03-11 | 立达英格尔施塔特有限公司 | Method for optimizing the production of a rotor spinning machine |
| CN114164526B (en) * | 2016-06-15 | 2023-08-18 | 立达英格尔施塔特有限公司 | Method for optimizing the production of a rotor spinning machine |
| CN107893270A (en) * | 2016-10-04 | 2018-04-10 | 索若德国两合股份有限公司 | The operation method and open end spinning apparatus of open end spinning apparatus |
| CN112095188A (en) * | 2019-06-18 | 2020-12-18 | 卓郎纺织解决方案两合股份有限公司 | Optimization of operation of spinning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011112364A1 (en) | 2013-03-07 |
| EP2565306B1 (en) | 2017-07-26 |
| CN102978754B (en) | 2017-03-01 |
| EP2565306A3 (en) | 2015-03-04 |
| EP2565306A2 (en) | 2013-03-06 |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: SAURER GERMANY GMBH + CO. KG Free format text: FORMER OWNER: OERLIKON TEXTILE GMBH + CO. KG Effective date: 20131104 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20131104 Address after: The German city of Remscheid Applicant after: Saurer Germany GmbH & Co KG Address before: The German city of Remscheid leiwo Guselu No. 65 Applicant before: Oerlikon Textile GmbH & Co. KG |
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