CN102041589A - Piecing method for open-end rotor spin machine - Google Patents
Piecing method for open-end rotor spin machine Download PDFInfo
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- CN102041589A CN102041589A CN2010105160564A CN201010516056A CN102041589A CN 102041589 A CN102041589 A CN 102041589A CN 2010105160564 A CN2010105160564 A CN 2010105160564A CN 201010516056 A CN201010516056 A CN 201010516056A CN 102041589 A CN102041589 A CN 102041589A
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- fiber
- joint
- spinning
- fibre
- parameter
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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
- D01H4/48—Piecing arrangements; Control therefor
- D01H4/50—Piecing arrangements; Control therefor for rotor spinning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention relates to a piecing method for an open-end rotor spin machine. According to the invention, before a piecing process, some parameters which represent piecing are input by an operator from a control mechanism (10) of the open-end rotor spin machine. According to the parameters, the control mechanism (10) calculates an added length (SADD) and height (addn) of the fibre and fibre flight time (tfibre flight). Furthermore according to the calculation result, a fibre band supply cylinder is then started and actuated so that the fibre supply cylinder is started with a maximal feeding speed which is preset by the added height (addn) of the fibre. The feeding speed of the fibre band supply cylinder is reduced to a minimal value when the added length (SADD) is finished. Furthermore, correspondingly with the operation of a spinning rotor, the feeding speed of the fibre band supply cylinder raises to the preset standard value again.
Description
Technical field
The present invention relates to the jointing method that is used for open-end rotor spinning unit according to the preamble of claim 1.
Background technology
In the evolution of open-end spinning machine, not only realized sizable growth of the productivity ratio of these weaving looms, and can significantly improve the quality of the yarn product of production.In addition, the needs to inevitable joint after spinning is interrupted significantly increase gradually, and in other words, the success of automatic open-end spinning machine is also importantly based on their quality of joint.
In order to ensure spinning position or the adapter assembly of being careful the spinning position of weaving loom automatically produce the joint consistent all the time as much as possible with yarn, the joint process is further improved gradually continuously, causes after batch replacing the quantity of the joint parameter adjusted at the controlling organization place significantly to increase.
Yet, there is a problem in the open-end spinning machine, that is, and at each spinning position place, particularly in the zone of fiber band shredding mechanism, for example because various drafts and/or yarn twist usually provide very different conditions.
For for the almost unavoidable very disadvantageous condition of suitable joint compensation, and, therefore developed the whole bag of tricks that relates to the joint process in the past in order to produce joint all the time with in fact consistent outward appearance with yarn.
A kind of joint process has for example been described among the DE3903782C2, wherein when the joint process begins, the fiber feedway is by demand working, consequent fibre stream at first is deflected on the path between the fiber collecting face in fiber feedway and spinning rotor, in other words, be removed up to return the actual joint process that begins by the yarn that draws back from cross winding bobbin.This means that in these known jointing methods consistent with returning of yarn, the fibre stream that at first is directed out is fed on the fiber collecting face of spinning rotor with certain delay.Extracted out from open-end spinning device by the yarn drawing mechanism by the yarn that the continuous accumulation of the fiber of supplying with produces.
Except wasting many good fibers, the most important thing is in the shortcoming of the jointing method that these are known that the project organization of such open-end spinning device is relatively costly.In other words, such spinning apparatus all must have a mechanism, and by this mechanism, the fiber of being supplied with by the fiber feedway can at first be deflected and remove from the beginning.
In addition, for example from DE4030100A1 or from people's such as Raasch publication " Automatisches Anspinnen beim OE-Rotorspinnen ", MELLIANDTextilberichte 4/1989, known joint method among 256 pages of 251 to, wherein before the joint process of reality begins, carry out the bundle fiber leveling.Guarantee when jointing method begins by such bundle fiber leveling, provide identical condition all the time at spinning position, and irrelevant with downtime separately.
In this known jointing method, actual joint process is from the startup of spinning rotor, and this spinning rotor is accelerated to operating rate continuously by the tangential band that acts on the armature spindle.When reaching predetermined joint rotor speed, the pre-supply of fiber begins, and in other words, for form fibrous ring in rotor slot, a certain amount of fiber is fed in the rotary spinning rotor.The pre-supply of fiber accurately taking place in the preset time section, is cut off usually then.After pre-supply had been cut off, fiber returned starting, therefore ready the end of a thread arrival spinning rotor of the yarn that draws back from mound bobbins.The end of a thread consumes the short time in the rotor slot of spinning rotor, take fibrous ring apart in this process, is extracted out with draw speed from open-end spinning device then, and this draw speed mates with the instantaneous velocity of rotation of the spinning rotor that is just turning round.Along with the extraction of yarn begins, fiber is supplied with and is also connected once more.
When certain delay when reaching required fibre stream (reaching the diameter deviation after required fibre stream will cause joint) occurring, fiber is supplied with and preferably was not switched on for a long time before the extraction of yarn begins.The draw speed of yarn and fiber are supplied with and are constantly adapted to rotor speed, up to reaching the operating rotor rotating speed.
Because not only when cut staple is supplied with fibre stream must lag behind maybe when connecting fiber and supply with fibre stream must delay start, and the feed speed of supplying with when fiber also deferred reaction of fibre stream when increasing, the yarn diameter that this reaction will cause occurring behind joint fluctuates, so also adopt so-called supply to increase.In other words, the feed speed that fiber is supplied with is compared increase with desired value, therefore guarantees to be engraved in when each is extracted out to have 100% required fibre weight in the spinning rotor.
Summary of the invention
From above-mentioned prior art, the present invention is based on the purpose of a kind of jointing method of exploitation, this jointing method allows operating personnel promptly to set up good and firm joint from a small number of parameters that characterizes joint.
According to the present invention, this purpose realizes by the method with the described feature of first aspect (claim 1).
Favourable structure according to method of the present invention is the theme of dependent claims.
According to method of the present invention, before new joint process begins, preferably, as described in second aspect (claim 2), some characterize the parameter (parameter " joint thickness-coarse adjustment ", " joint thickness-fine setting " and " joint length ") of joint and are imported at the controlling organization place of open-end spinning machine by the operator, described controlling organization calculates length and height and the fiber flight time that required fiber increases immediately according to parameter, described method also has the following advantages, that is, no longer need high-quality staff to set up senior joint.In other words, the staff who no longer needs to have special knowledge produces the joint consistent with yarn.When the parameter that can understand easily of minority only must be transfused to described controlling organization when being hopeful the joint process of success with startup, because the favourable processing of described parameter in described controlling organization, so for the operator, described joint process not only is very easy to, and very effective.In other words, as described in the 5th aspect (claim 5), described controlling organization guarantees that driver time interval with accurate Calculation before the taking-up of described yarn begins of fiber band supply tube starts, and in described process, activated, making described fiber band supply with tube starts with the predetermined maximum feed speed of the height that is increased by fiber, thereby guarantee that required fibrous ring forms in spinning rotor, and required fibre weight exists all the time in the yarn diameter.When the length that arriving fiber increases finished, the described feed speed that described fiber band is supplied with tube was reduced to minimum of a value, thereby adapts to the running of described spinning rotor, rises to once more by the predetermined standard value of the operating rate of described spinning rotor.
Additional advantage according to method of the present invention is, not only obviously arrive regular spinning state quickly than previous conventional method, supply with the ventilation of only depending on described spinning rotor speed and selection at fiber band described in this rule spinning state, and the supply of described fiber is modified also.In other words because avoided that previous traditional described fiber band supplies with in the middle of cut off, so each that supply with at described fiber band starts or stops operating period, the inevitable skew that the described fiber that is caused by the fiber flight time is supplied with is reduced to minimum.
As described in the third aspect (claim 3), in favourable embodiment, in described controlling organization, calculate the described fiber flight time according to the input of described parameter " joint thickness-coarse adjustment ", the described fiber flight time pre-determined before described yarn is extracted out, must start the time interval that described fiber is supplied with.
In addition, as described in fourth aspect (claim 4), described parameter " joint thickness-fine setting " is transfused to described controlling organization and pre-determines the size of the fibre weight of increase, described controlling organization together with described parameter " joint length ", calculates described height and described length that described fiber increases by means of the size of the fibre weight of described increase.
Yet in fact, if opposite with expectation, the joint profile does not show satisfied result, and the described parameter that also can revise execution is imported and no problem.
In other words, where necessary, can improve described joint profile in simple mode by the parameter input of proofreading and correct.
Description of drawings
To the present invention be described below in further detail by means of embodiment shown in the drawings, wherein:
Fig. 1 illustrates the schematic diagram of the spinning position of open-end spinning machine, uses according to jointing method of the present invention at this open-end spinning machine place;
Fig. 2 illustrates the flow chart of joint process;
Fig. 3 is illustrated in the controlling organization when being used to implement according to jointing method of the present invention.
The specific embodiment
Fig. 1 illustrates the self-centered spinning position 4 of open-end spinning machine, in other words, construct and be equipped to and make that can implement at this place will be by means of Fig. 2 and 3 stereogram according to the spinning position of jointing method of the present invention of description in further detail below.
As everyone knows, such self-centered spinning position 4 has spinning apparatus 5 respectively, and the spinning parts of this spinning apparatus 5 is driven by single electric motor.In other words, spinning apparatus 5 has spinning rotor 44, and this spinning rotor 44 can rotate with height commentaries on classics degree by motor 43.In addition, spinning apparatus 5 has the opening roller 46 and the fiber band of tape drive 45 and supplies with tube 47, and this fiber band is supplied with tube 47 and is connected to the driver 48 that can activate in the mode of regulation, preferably is connected to stepping motor.Driver 43,45,48 is connected to the controlling organization 8 of work station special use respectively by control line 49 to 51, controlling organization 8 and then for example connect 13 central control units 10 that are connected to the weaving loom of producing cross winding bobbin by bus.
In addition as shown in Figure 1, in spinning apparatus 5, the supply fiber band 14 that is stored in the spinning can (not shown) is spun into yarn 16, and yarn 16 is wound onto on the coiler device 7 then to form cross winding bobbin 18.The spinning apparatus 7 of such spinning position 4 has: the bobbin cradle 17 that is used for rotatably keeping cross winding bobbin 18; Yarn transversing mechanism 22 with traverse guide 19, this traverse guide 19 can be driven by single electric motor; And bobbin driving mechanism 23, the bobbin driven roller 32 of this bobbin driving mechanism 23 for example can be driven by motor driver 27.In the spinning position 4 of open-end spinning machine 1 each also is equipped with a plurality of other different yarns to be handled or processing mechanism, and this yarn manipulation or processing mechanism are guaranteed the self-sufficient operation of spinning position 4 where necessary.Spinning position 4 all for example has: yarn drawing mechanism 20, and this yarn drawing mechanism 20 can be driven and be activated in the mode of stipulating by single electric motor; Suction nozzle 21, this suction nozzle 21 can be driven by single electric motor; And joint member 52, this joint member 52 is arranged in the zone of spinning apparatus 5 and itself is known, therefore describes no longer in more detail.Be used for an also controlling organization 8 that is connected to the work station special use by control line 28 to 31 respectively of the driver 24 of yarn drawing mechanism 20, the driver 25 that is used for suction nozzle 21, the driver 27 that is used for the driver 26 of traverse guide 19 and is used for bobbin driven roller 32.The yarn of producing in the spinning apparatus 5 16 contacts with other function element of spinning position 4 in the way of coiler device 7 directly or indirectly at it.In the zone of the operating path of yarn, arrange for example lugs 33, pneumatic thread memory 34, mechanical yarn storage device 35 and waxing mechnism 36.
Fig. 2 illustrates controlling organization 10, is preferably the central control unit 10 of the open-end spinning machine with the mechanism 37,38,39 that is used to import the parameter that characterizes joint.For example about the data of parameter " joint thickness-coarse adjustment ", mechanism 38 is used to input parameter " joint thickness-fine setting " to controlling organization 10 simultaneously by mechanism's 37 supplies.Therefore data about parameter " joint length " are imported by mechanism 39.
Parameter " joint thickness-coarse adjustment " in the input at mechanism 37 places is handled in controlling organization 10 in this case, goes out fiber flight time t shown in Reference numeral 40 according to this calculation of parameter
Fiber flightBy being input to the parameter " joint thickness-fine setting " in the mechanism 38, also pre-determine the size delta s of the additional fibre weight shown in the Reference numeral 41, according to Δ s, consider parameter " joint length " in the input of mechanism 39 places, controlling organization 10 calculates height addn and the length S that fiber increases
ADDCalculated data connects 13 through bus and is used for activating the driver 48 that fiber band is supplied with tube 47.
Here, in controlling organization 10, calculate the length S that fiber increases according to following calculation specification (calculationspecification)
ADD:
S
ADD ＝V
N×t
ADD+Δs
Wherein:
V
NBe the speed that fiber band is supplied with tube when the extraction of yarn begins,
T
ADDBe the cycle that fiber increases, this T
ADDCalculation specification be known, and
Δ
SIt is the size of the fibre weight of increase.
The data that are stored in the height (addn) of the fiber increase in the controlling organization 10 with form are rule of thumb determined basically, have considered calculation specification in this empirical data is determined
1n(1+addn)/addn＝1-Δs/S
ADD
Fig. 3 illustrates according to jointing method of the present invention by means of curve map.
Abscissa illustrates the time course t of jointing method, in this case, can infer fiber band supply, the extraction of yarn and the relevant speed v that the end of a thread returns from ordinate simultaneously.
At moment t
4The place, the extraction of yarn also starts and increases to by the predetermined speed of the rotating speed of spinning rotor 44, at moment t
5Reach this speed.From moment t
5Beginning, the increase of the draw speed of yarn are also carried out pro rata with the increase of the rotating speed of spinning rotor 44, and at moment t
7, reach by predetermined its standard value of the operating rate of spinning rotor.
Claims (5)
1. jointing method that is used for open-end rotor spinning unit, this open-end rotor spinning unit has: spinning rotor, this spinning rotor is to rotate in the rotor case that negative pressure loads at a high speed; Fiber band shredding mechanism with opening roller; And fiber band is supplied with tube, this fiber band is supplied with tube and can be activated with prescribed manner, wherein, the ready veil line that draws back from mound bobbins is fed in the described spinning rotor, and the yarn of producing is extracted out from described open-end spinning device, described jointing method is characterised in that, before the first joint process begins, some characterize the parameter of this joint and locate input by the operator at the controlling organization (10) of open-end spinning machine, according to described parameter, described controlling organization (10) calculates the length (S that required fiber increases
ADD) and height (addn) and fiber flight time (t
Flbre flight), according to the value of being calculated, described fiber band is supplied with tube and is activated then and activated, make described fiber band supply with tube and start that described fiber band is supplied with the described length (S of the described feed speed of tube in described increase with the predetermined maximum feed speed of the described height (addn) that increases by described fiber
ADD) be reduced to minimum of a value when finishing, and last, being adapted to the running of described spinning rotor, the described feed speed that described fiber band is supplied with tube rises to predetermined standard value once more.
2. method according to claim 1 is characterized in that, " joint thickness-coarse adjustment ", " joint thickness-fine setting " and " joint length " are imported by the operator as the parameter that characterizes described joint.
3. method according to claim 2 is characterized in that, in described controlling organization, calculates described fiber flight time (t according to the input of described parameter " joint thickness-coarse adjustment "
Fibre Flight).
4. method according to claim 2, it is characterized in that, by importing the fibre weight (Δ s) that described parameter " joint thickness-fine setting " pre-determines increase, described controlling organization calculates the described length (S that described fiber increases according to the input together with described parameter " joint length " of the fibre weight of this increase
ADD) and described height (addn).
5. according to claim 1 or 3 described methods, it is characterized in that, according to described fiber flight time (t
Fibre flight) determine that described fiber band supplies with the time interval that tube started before described yarn is extracted beginning out.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009050582.2 | 2009-10-24 | ||
| DE200910050582 DE102009050582A1 (en) | 2009-10-24 | 2009-10-24 | Method for starting open-end rotor spin machine to spin threads, involves reducing feed speed of fiber band-feed cylinder to minimum value upto end of length of adder, adapting speed to run-up of rotor and again raising speed to value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102041589A true CN102041589A (en) | 2011-05-04 |
| CN102041589B CN102041589B (en) | 2014-07-30 |
Family
ID=42105409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010516056.4A Expired - Fee Related CN102041589B (en) | 2009-10-24 | 2010-10-18 | Piecing method for open-end rotor spin machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102041589B (en) |
| DE (1) | DE102009050582A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112272646A (en) * | 2018-06-13 | 2021-01-26 | 欧瑞康纺织有限及两合公司 | Method and apparatus for supplying groups of yarns |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012008691A1 (en) * | 2012-04-28 | 2013-10-31 | Oerlikon Textile Gmbh & Co. Kg | Method and device for operating jobs of an open-end rotor spinning machine |
| DE102012011122A1 (en) | 2012-06-05 | 2013-12-05 | Saurer Germany Gmbh & Co. Kg | Printed circuit board for textile machine used for processing or handling of fiber material, has spiral-shaped conductors that are connected with upstream diode arrangement for dissipation of electrostatic discharge |
| DE102012011120A1 (en) | 2012-06-05 | 2013-12-05 | Saurer Germany Gmbh & Co. Kg | Circuit board for controlling biphase bipolar stepping motor for rotor spinning machine, has converter circuits transmitting signals inverted relative to two respective inputs of board to respective inputs of motor drive |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339921B1 (en) * | 1999-11-19 | 2002-01-22 | W. Schlafhorst Ag & Co. | Textile yarn piecing device with an evaluation arrangement for determining parameters of an automatic yarn piecing process |
| CN1405374A (en) * | 2001-08-09 | 2003-03-26 | W.施拉夫霍斯特公司 | Free-end air-flow spinner |
| CN101275319A (en) * | 2007-03-31 | 2008-10-01 | 欧瑞康纺织有限及两合公司 | Method for operating a textile machine producing cross-wound bobbins |
| CN101321901A (en) * | 2005-12-10 | 2008-12-10 | 欧瑞康纺织有限及两合公司 | Method for starting to spin a thread, and rotor-spinning machine for carrying out the method |
| EP2078770A2 (en) * | 2008-01-09 | 2009-07-15 | Oerlikon Textile GmbH & Co. KG | Method of operating a spinning station of a semiautomatic open end spinning frame and spinning station to implement the method |
| CN101522550A (en) * | 2006-10-06 | 2009-09-02 | 欧瑞康纺织有限及两合公司 | Workstation of a textile machine |
| EP2105401A2 (en) * | 2008-03-28 | 2009-09-30 | Murata Machinery, Ltd. | Yarn end retrieving apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3903782C2 (en) | 1989-02-09 | 1994-02-24 | Rieter Ingolstadt Spinnerei | Method for piecing an open-end spinning device and open-end spinning machine with a device for piecing individual or several spinning devices |
| DE4030100C2 (en) | 1990-09-22 | 2000-03-23 | Schlafhorst & Co W | Method and device for determining the changes in criteria of an automatic piecing process |
-
2009
- 2009-10-24 DE DE200910050582 patent/DE102009050582A1/en not_active Withdrawn
-
2010
- 2010-10-18 CN CN201010516056.4A patent/CN102041589B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339921B1 (en) * | 1999-11-19 | 2002-01-22 | W. Schlafhorst Ag & Co. | Textile yarn piecing device with an evaluation arrangement for determining parameters of an automatic yarn piecing process |
| CN1405374A (en) * | 2001-08-09 | 2003-03-26 | W.施拉夫霍斯特公司 | Free-end air-flow spinner |
| CN101321901A (en) * | 2005-12-10 | 2008-12-10 | 欧瑞康纺织有限及两合公司 | Method for starting to spin a thread, and rotor-spinning machine for carrying out the method |
| CN101522550A (en) * | 2006-10-06 | 2009-09-02 | 欧瑞康纺织有限及两合公司 | Workstation of a textile machine |
| CN101275319A (en) * | 2007-03-31 | 2008-10-01 | 欧瑞康纺织有限及两合公司 | Method for operating a textile machine producing cross-wound bobbins |
| EP2078770A2 (en) * | 2008-01-09 | 2009-07-15 | Oerlikon Textile GmbH & Co. KG | Method of operating a spinning station of a semiautomatic open end spinning frame and spinning station to implement the method |
| EP2105401A2 (en) * | 2008-03-28 | 2009-09-30 | Murata Machinery, Ltd. | Yarn end retrieving apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112272646A (en) * | 2018-06-13 | 2021-01-26 | 欧瑞康纺织有限及两合公司 | Method and apparatus for supplying groups of yarns |
| CN112272646B (en) * | 2018-06-13 | 2022-11-29 | 欧瑞康纺织有限及两合公司 | Method and apparatus for supplying a set of yarns |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102041589B (en) | 2014-07-30 |
| DE102009050582A1 (en) | 2010-05-20 |
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