CN1878897A - Drafting arrangement for a spinning machine - Google Patents
Drafting arrangement for a spinning machine Download PDFInfo
- Publication number
- CN1878897A CN1878897A CNA200480032835XA CN200480032835A CN1878897A CN 1878897 A CN1878897 A CN 1878897A CN A200480032835X A CNA200480032835X A CN A200480032835XA CN 200480032835 A CN200480032835 A CN 200480032835A CN 1878897 A CN1878897 A CN 1878897A
- Authority
- CN
- China
- Prior art keywords
- motor
- draft apparatus
- acceleration transducer
- signal
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/32—Counting, measuring, recording or registering devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Control Of Multiple Motors (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Disclosed is a drafting arrangement for a spinning machine, particularly a draft regulator, comprising at least two successive pairs of rollers, several electric motors (10, 20) for driving at least one respective roller (2, 3, 4) belonging to said roller pairs, and an electronic regulating ring (5) to which the electric motors (10, 20) are connected. The drafting arrangement is characterized in that an acceleration sensor (12, 22) is allocated to at least one electric motor (10, 20) and/or at least one roller (2, 3, 4).
Description
Technical field
The present invention relates to a kind of spinning machine drafting equipment, particularly a kind of automatically even tops drawing frame, it is right that it comprises at least two rollers in succession, several motor and an electronic-controlled installation that links to each other with motor that are used for driving respectively at least one right roller of described roller.
Background technology
In controlled drafting system, the right accurate synchronism of the roller of draft apparatus has decisive meaning for the quality or the uniformity of the ribbon of producing.Mechanical connection by gear or belt drive unit is desirable especially to this, guarantees the right basic synchronization of roller because these connect.But for automation, these connections are not optimum.
Use several direct transmissions for driving the draft apparatus element, so-called independent transmission, making the machine of drawing-off and percentage elongation that automation is set becomes possibility.Have the draft apparatus of the sort of independent transmission, people have known a very long time.In known design, motor reel or roller shaft distributing shaft incremental encoder for transmission device are used to calculate revolutions per (rpm), rotating speed, corner or the like.In order to realize this purpose, shaft encoder forms as digit position (angle) sensor, receive information about speed and revolutions per from the position signalling (revolution of the time window that each is given) of sensor, these information are cited under the help of a control device of electric motor that is used to adjust motor revolutions per separately and distributes respectively.
These use the position of incremental encoder and the shortcoming of traditional transmission system that the revolutions per control device is formed to be by one, are used for the rearmounted signal formation of handling of numeral and need the time.During this period of time, can not obtain currency, and must insert.For transmission device, this means the certain clearance in motor reel, this disturbs very big to the synchronism in dynamic range and seriously undermines the interference rigidity.Interference on motor reel is that the variation owing to load, vibration of belt or the like occur, so these interference can not be eliminated effectively.The result is, asynchronous between the weakening of the running calmness when constant running and the draft apparatus roller.
Summary of the invention
Therefore, it is a kind of at the sort of draft apparatus that begins to mention that task of the present invention is to provide, and this equipment is avoided described shortcoming and guaranteed the improvement of drawing-off especially.
This task is resolved in the sort of draft apparatus that begins to mention by this way, and promptly acceleration transducer is assigned at least one motor and/or at least one roller.
Advantage of the present invention will be found out from the following fact especially: the live signal about acceleration is received, and this signal directly writes down the variation of load moment, just interference effect.These interference parameters comprise thick point and the elasticity of driving belt and their vibration of the scan actuator record that is serially connected with draft apparatus.The variation of load moment causes the acceleration that motor reel is positive or negative, and this can directly be noted by acceleration transducer.Then, in order to readjust motor current, can be directly processed by the signal of sensor output.Because opposite with the increment type position sensor, time consuming signal is handled optional, thereby may control motor directly, quickly and accurately.Therefore, can obtain the right even and constant running of roller, this is superior to traditional transmission device.
If handle acceleration information under the help of known axes incremental encoder, this will consume the considerable time.In addition, the differential by code device signal necessity may cause error, this meeting negative effect control quality.
In contrast, also may pass through integration inbound pacing or revolutions per value, wherein Bi Yao calculating operation causes the error littler than so-called differential.
Use another advantage of acceleration transducer to be at one time, under more solid relatively situation, they have high susceptibility.
Particularly preferably, described at least one acceleration transducer forms as a relative acceleration sensor, because this does not consider the interference effect of earth acceleration.So-called Ferrari sensor (Ferraris Sensor) is proved to be special, very suitable relative acceleration sensor, and this sensor is based on the vortex flow principle and has very high dynamics.
In a preferred design, at least one acceleration transducer is arranged on the motor reel, thereby it directly obtains the live signal of this axle acceleration on the axle.Here, when the sensor of usage charges Larry, have only when roller obtains a relative acceleration, just by this sensor output signal.
In an alternative scheme, acceleration transducer is arranged on the roller shaft.
---substantially immediately---estimate the signal of described sensor and convert thereof into quick conversion, simulation and/or the digital translation element of the current signal of motor if be used for, the jump that wins by acceleration transducer can keep.
Advantageously, distribute oneself a electric motor control device respectively for motor.Particularly preferably, this comprises a revolutions per adjuster and a downstream current regulator of engine separately.In this layout, for example, (encoder that has the bar code-disc, based on the resolver of transformer principle, sine and cosine encoder (Sincos encoder) is caught the position and the revolutions per signal of motor (perhaps by electric motor driven roller shaft) from the axle incremental encoder.These actual signals are passed to the revolutions per adjuster then, and this revolutions per adjuster compares its desired value with the equipment of adjustment.The output signal of revolutions per adjuster is delivered to current regulator as desired value, and this current regulator additionally also receives the currency of its current actual value from motor.In addition, according to the present invention, an acceleration transducer is located on the suitable point of motor, preferably at its slave end.The signal of acceleration transducer can be directly transferred to current regulator then, with balance of short duration or load change fast.
Particularly preferably, with analog form, that is to say does not have analog-to-digital conversion, utilizes the signal of acceleration transducer, and the signal of motor apparatus is passed to current regulator.In this direct transmission of acceleration transducer signals, current regulator on purpose forms as hybrid receiver, this hybrid receiver can Analog signals also can processing digital signal (latter is the output signal of revolutions per adjuster particularly).The analog acceleration value of at least one acceleration transducer or the utilization of voltage value proportional with it have such advantage, and promptly these signals can be processed in real-time.
Degree of will speed up signal is delivered to motor apparatus and---at this preferably---is delivered to current regulator, and its alternative scheme is, these signals also can be passed to adjustment equipment, here preferably with analog form but unnecessary.
In addition, a tachometer that is used for accurately measuring revolutions per can be assigned to one of them motor, wherein tachometer obtain in real time preferred be analog signal, preferably change at an input of revolutions per adjuster.With this tachometer also can be captured on the motor reel of short duration or fast revolutions per change, these variations can be input to during revolutions per adjusts.When revolutions per is low, also can with analog form record than with numeral and therefore be the more accurate revolutions per value of shaft encoder of classification.In order to estimate these analog signals, revolutions per also can preferably form as hybrid receiver.
Replace the use of hybrid receiver, it guarantees to catch interference parameter under the situation of not free loss, and analog signal also can be handled by analog module, and particularly amplification, weighted sum are estimated or the like.
Other favourable exploitations of the present invention describe by the feature of dependent claims.
Description of drawings
Explain the present invention by accompanying drawing below.
Fig. 1 is a schematic plan view based on draft apparatus of the present invention; With
Fig. 2 is the circuit block diagram that a motor is adjusted equipment.
The specific embodiment
Fig. 1 schematically demonstrates based on adjustment draft apparatus 1 of the present invention, this equipment comprise an input roller to, in the middle of one roller to right with a delivery roller.In Fig. 1, only show the bottom roll that these rollers are right, just import bottom roll 2, middle bottom roll 3 and output bottom roll 4.Have only these bottom rolls 2,3,4 to be driven, however unshowned top roller be crushed on separately the bottom roll 2,3,4 so that the ribbon FB that signal is pointed to be clamped at roller between. Bottom roll 2,3 is all driven by a common motor 10, this motor by input and middle roller between a gear stage (not drawing in more detail) that has belt drive unit 6 produce the preliminary draft of an appointment.Output bottom roll 4 is to be driven by belt drive unit 7 (not drawing in more detail) by an independent motor 20.The revolutions per of motor 10,20 can be adjusted by this way by an adjustment equipment 5, i.e. the ribbon drawing-off of the fluctuation of balance ribbon quality realizes between centre and delivery roller.For this reason, 5 receptions of adjustment equipment are from the ribbon quality signal or the ribbon cross section signal of the measurement device (not illustrating at this) of the upstream that is positioned at draft apparatus.Adjustment equipment 5 can be used as a microcomputer and forms, and this microcomputer also carries out machinery control except taking over Electronic Control.
For each motor 10,20 distributes an independent electronic-controlled installation 13 and 23, these control device are connected to adjustment equipment 5 by electric wire 8 and 9, and from the desired value of this adjustment equipment acceptance about the motor revolutions per.Motor is adjusted equipment 13 and 23 and is connected to separately motor 10,20 respectively by electric wire 18 and 28.In addition, axle incremental encoder 11 and 21 is connected respectively to motor 10 and 20 by electric wire 16 and 26, and this encoder forms as for example known encoder or resolver, and helps to catch the revolutions per of motor reel separately.When axle rotated, about 100 pulses were by incremental encoder 11 and 21 outputs, so that can draw the conclusion about the revolutions per in each each chronomere from the position of pulse in the time window of an appointment and motor rotor.Shaft encoder 11 and 21 data signal are launched (transmitted) to separately electric motor control device 13 and 23 by electric wire 17 and 27, and are cited for the motor current that motor 10,20 is set at that.
In addition, according to the present invention, for motor 10 and 20 distributes an acceleration transducer 12 or 22 respectively, these acceleration transducers form as the relative acceleration sensor at this, for example the Ferrari sensor.Acceleration transducer 12 and 22 is distributed to the motor reel separately of motor 10,20 by electric wire 14 and 24, and wherein acceleration transducer 12 and 22 is transmitted into separately electric motor control device 13 and 23 by electric wire 15 and 25 with the dynamic acceleration signal of height with the form of actual voltage value.
Only occur positive or negative acceleration on motor reel really, acceleration transducer 12,22 just provides signal.These acceleration cause the variation of motor revolutions per owing to load change causes thereby load change causes the variation of load moment.Now, the analog acceleration signal of acceleration transducer 12,22 can be directly be cited as the live signal of the Current Control of motor 10,20.The combination evaluation of the positional value that records by axle incremental encoder 11 and 21 and the accekeration of sensor 12 and 22 guarantees a Motor Control accurately and fast, if quick and/or of short duration load change particularly takes place.Generally speaking, therefore the quality of control improves significantly.
Fig. 2 reproduces a circuit block diagram of an electric motor control device 13, and wherein the structure of this equipment 13 and control appliance 23 are similar.Electric motor control device 13 comprises a revolutions per controller 34 and a downstream electrical stream controller 36, and wherein the latter is connected with motor 10 by electric wire 18, and to current target value of this motor emission.Be motor 10, distribute described acceleration transducer 12 on the one hand, distribute a tachometer 30 (in the design example of Fig. 1, not occurring) by electric wire 31 to it on the other hand.The actual revolutions per of this tachometer calculating motor axle and its analog output signal is relayed to revolutions per controller 34 by electric wire 32.This revolutions per controller 34 also receives from the data signal of axle incremental encoder 11 and the revolutions per desired value " target " that receives self-adjusting equipment 5 by electric wire 8.Like this, revolutions per controller 34 treatment of simulated and data signal, so it forms as mixture control.Its output signal is delivered to current controller 36 by a wire 35, and this current controller also receives the current actual value of motor 10 and a voltage value that receives from acceleration transducer 12 by electric wire 15 by electric wire 37.Voltage value (if just in time having an acceleration) is proportional with current accekeration.Advantageously, these voltage values directly are passed to current controller 36 with analog form, so that this current controller suitably forms as mixture control too.In addition, current controller 36 receives the information " maximum " of the maximum motor electric current that allows by a wire 38.
Electric motor control device 13 preferably has quick conversion, analog-and digital-converting member together with revolutions per controller 34 and current controller 36, with the evaluation that can carry out signal with essentially noly lingeringly convert signal to current signal.Preferably, electric motor control device 13 can be by software control.
Similarly, for electric motor control device 23, the design of above-mentioned electric motor control device 13 is applicatory.
Relevant motor can be worked under master slave mode or under parallel desired value pattern.
Do not departing from basic thought of the present invention---described in claims---situation under, it also is possible that other independent transmission is arranged.
Claims (14)
1. the draft apparatus of spinning machine, particularly a kind of adjustment draft apparatus, it is right to comprise at least two continuous rollers, several motor (10,20) that are used for driving respectively at least one right roller of described roller (2,3,4), with an electronic-controlled installation 5 that is connected to motor (10,20), it is characterized in that, distribute an acceleration transducer (12,22) at least one motor (10,20) and/or at least one roller (2,3,4).
2. draft apparatus as claimed in claim 1 is characterized in that, at least one acceleration transducer (12,22) forms as the relative acceleration sensor.
3. draft apparatus as claimed in claim 2 is characterized in that, at least one acceleration transducer (12,22) is the Ferrari sensor.
4. each described draft apparatus in the claim as described above is characterized in that described at least one acceleration transducer (12,22) is arranged on the axle of at least one motor (10,20).
5. as each described draft apparatus of claim 1 to 3, it is characterized in that at least one acceleration transducer (12,22) is arranged on the axle of roller (2,3,4).
6. each described draft apparatus in the claim as described above, it is characterized in that quick conversion, simulation and/or digital translation parts (13,23), described parts are used for the signal evaluation (essentially no delay) of at least one acceleration transducer (12,22) and convert them to the current signal of motor (10,20) separately.
7. each described draft apparatus in the claim as described above, it is characterized in that, for at least one motor (10,20) and/or at least one roller (2,3,4) distribution axle incremental encoder (11,21), be used to write down revolutions per, turn to and/or corner.
8. each described draft apparatus in the claim as described above is characterized in that, is that at least one motor (10,20) distributes an independent electric motor control device (13,23).
9. draft apparatus as claimed in claim 8 is characterized in that, described electric motor control device (13,23) comprises the described revolutions per controller (34) and the described current controller (36) of described at least one motor (10,20).
10. each described draft apparatus in the claim as described above, it is characterized in that, the signal of the acceleration transducer (12,22) that distributes at least one motor (10,20) is passed to a control appliance (5) or electric motor control device (13,23), preferably is delivered to an input of current controller (36).
11. draft apparatus as claimed in claim 10 is characterized in that, the signal of the acceleration transducer (12,22) that distributes for motor (10,20) is with the analog form transmission under analog-to-digital situation formerly not.
12. the described draft apparatus of each in the claim is characterized in that as described above, is provided with a tachometer (30), is used to calculate the revolutions per of described at least one motor (10,20).
13. the draft apparatus as claim 12 is characterized in that, the signal of described tachometer (30) is passed to electric motor control device (13,23), preferably, is delivered to the input of revolutions per controller (34).
14., it is characterized in that described tachometer (30) launching simulation signal as claim 12 or 13 described draft apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003152303 DE10352303A1 (en) | 2003-11-06 | 2003-11-06 | Drafting system for a spinning machine |
| DE10352303.0 | 2003-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1878897A true CN1878897A (en) | 2006-12-13 |
| CN100547135C CN100547135C (en) | 2009-10-07 |
Family
ID=34559516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200480032835XA Expired - Fee Related CN100547135C (en) | 2003-11-06 | 2004-09-09 | Drafting device for spinning machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1687469B1 (en) |
| CN (1) | CN100547135C (en) |
| DE (2) | DE10352303A1 (en) |
| WO (1) | WO2005045107A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842234A (en) * | 2018-09-05 | 2018-11-20 | 张家港市利佳纺织有限公司 | A kind of frequency control spandex yarn twister |
| CN113201818A (en) * | 2021-05-06 | 2021-08-03 | 湖北天门纺织机械股份有限公司 | System and method for adjusting drafting multiple of back zone of spinning frame |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008001696B4 (en) * | 2008-05-09 | 2019-06-13 | Rieter Ingolstadt Gmbh | Spinning preparation machine with outlet regulation |
| CN110923868B (en) * | 2019-12-31 | 2023-03-03 | 经纬智能纺织机械有限公司 | Rear roller synchronization and play detection device of ring spinning frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2941612A1 (en) * | 1979-10-13 | 1981-04-23 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | ROUTE |
| DE3900409A1 (en) * | 1989-01-09 | 1990-07-12 | Rieter Ag Maschf | TEXTILE MACHINE, ESPECIALLY SPINNING MACHINE |
| WO1992005301A1 (en) * | 1990-09-20 | 1992-04-02 | Maschinenfabrik Rieter Ag | Draft system drive with adjusted delivery cylinder |
| CH685164A5 (en) * | 1992-03-05 | 1995-04-13 | Zellweger Uster Ag | Method and apparatus for controlling the delay of a drafting. |
| DE19644560B4 (en) * | 1996-10-26 | 2007-10-11 | TRüTZSCHLER GMBH & CO. KG | Drafting system for a spinning machine, in particular a Regulierstrecke for cotton |
| DE10004604B4 (en) * | 2000-02-03 | 2018-04-05 | Trützschler GmbH & Co Kommanditgesellschaft | Device for feeding fiber slivers on a spinning machine, in particular stretch, e.g. autoleveler |
| DE10064835C2 (en) * | 2000-12-22 | 2002-11-14 | Siemens Ag | Circuit arrangement for evaluating an acceleration sensor based on the Ferrari principle |
| DE10123188A1 (en) * | 2001-05-12 | 2002-11-14 | Heidenhain Gmbh Dr Johannes | Angle measurement system with integrated Ferraris sensor for accurate angle measurement and direct measurement of angular acceleration and velocity, whereby the effects of varying thermal expansion of components are negated |
-
2003
- 2003-11-06 DE DE2003152303 patent/DE10352303A1/en not_active Withdrawn
-
2004
- 2004-09-09 DE DE502004004053T patent/DE502004004053D1/en not_active Expired - Lifetime
- 2004-09-09 EP EP04766749A patent/EP1687469B1/en not_active Expired - Lifetime
- 2004-09-09 CN CNB200480032835XA patent/CN100547135C/en not_active Expired - Fee Related
- 2004-09-09 WO PCT/EP2004/052099 patent/WO2005045107A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842234A (en) * | 2018-09-05 | 2018-11-20 | 张家港市利佳纺织有限公司 | A kind of frequency control spandex yarn twister |
| CN113201818A (en) * | 2021-05-06 | 2021-08-03 | 湖北天门纺织机械股份有限公司 | System and method for adjusting drafting multiple of back zone of spinning frame |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004004053D1 (en) | 2007-07-19 |
| CN100547135C (en) | 2009-10-07 |
| EP1687469B1 (en) | 2007-06-06 |
| EP1687469A1 (en) | 2006-08-09 |
| DE10352303A1 (en) | 2005-06-09 |
| WO2005045107A9 (en) | 2005-08-18 |
| WO2005045107A1 (en) | 2005-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20100909 |