CN104451991B - For reducing control method and the device of spinning frame spinning Yarn break - Google Patents
For reducing control method and the device of spinning frame spinning Yarn break Download PDFInfo
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- CN104451991B CN104451991B CN201410680915.1A CN201410680915A CN104451991B CN 104451991 B CN104451991 B CN 104451991B CN 201410680915 A CN201410680915 A CN 201410680915A CN 104451991 B CN104451991 B CN 104451991B
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- yarn
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- control method
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- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
- D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
- D01H9/04—Doffing arrangements integral with spinning or twisting machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a kind of control method for reducing spinning frame spinning Yarn break, including starting step, spinning little yarn step, spin middle yarn step, spin big yarn step and step of doffing；Spin in big yarn step, when on spool, yarn reaches the 90 95% of total amount of spinning, then full packages sensor output full packages signal low cruise spinning, if the time of operation is equal to Pg, then enter step of doffing, the location-appropriate of original full packages sensor is moved down, i.e. yarn reach spin total amount 90 95% time, full packages sensor is issued by signal, transfer low speed spinning to, the low cruise Pg time reaches the position of full yarn, performs to doff, and significantly reduces the end breakage rate of yarn.
Description
The present invention is application number 2013100333170, on 01 29th, 2013 applying date, the divisional application of denomination of invention " for reducing control method and the device of spinning frame spinning Yarn break ".
Technical field
The present invention relates to the control method of a kind of spinning frame spinning process, it is adaptable to spinning frame, specifically, relate to a kind of control method for reducing spinning frame spinning Yarn break and device, belong to textile technology field.
Background technology
Textile industry, usual spinning frame spins on spool 1, and reducing the spinning frame end breakage rate when spinning is the target the most always pursued.Still at the legacy equipment used on market, such as FA502, FA503 and A513 etc., the main spinning process using A.C. contactor to control whole spinning frame, this control mode is difficult to realize the control reducing spinning frame yarn breakage at electric aspect.For realizing reducing the end breakage rate of spinning frame spinning, at present, general employing frequency converter carrys out control realization, but due to a large amount of above-described old type tube spinning frame of textile industry, these spinning frames are transformed, the frequency converter of every equipment needs nearly ten thousand yuan together with the expense of PLC, and the textile enterprise of the old equipment of numerous uses to realize this method and control to be extremely difficult, have impact on product quality and the yield of these enterprises.On the other hand, flyings easily block the drawback that the cooling system of frequency converter is the spinning frame Frequency Converter Control of old type tube, be also cause frequency converter to be applied for a long time after easily burn out and even cause leading cause of fire.The process spinned on spool 1 with spinning frame in the industry is typically included in bottom spool 1 process starting to spin and is referred to as spinning little yarn, yarn in the spinning process of spool 1 middle part is referred to as spinning, it is referred to as spinning big yarn close to spinning process when spinning full spool on spool 1 top, full packages sensor sends signal and refers to that spool 1 has spun completely, be given by right position sensor signal, perform full packages and doff step.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned deficiency, a kind of control method for reducing spinning frame spinning Yarn break and device are provided, overcome and prior art controls the expensive drawback of device and holds ignitable hidden danger, the control method of the present invention and device are particularly well-suited to the transformation of the numerous old equipment of textile enterprise, cost is substantially reduced, and whole control apparatus structure is simple and clear, failure rate is low, easy to maintenance, also improve quality and the yield of the spinning of old equipment simultaneously.
For solving problem above, the present invention by the following technical solutions: for reducing the control method of spinning frame spinning Yarn break, it is characterised in that: described control method includes starting step, spins little yarn step, spins middle yarn step, spins big yarn step and step of doffing；
Described spin big yarn step and start from step S108, when on spool, yarn reaches to spin the 90-95% of total amount, then full packages sensor output full packages signal enter step S110；
In step S110, low cruise spins, it is judged that the time of running is less than or equal to Pg, if the time of operation is less than Pg, then continues low cruise and spins and judge；If the time of operation is equal to Pg, then enter step of doffing.
A kind of prioritization scheme, described Pg is in the range of the 1-999 second.
Another kind of prioritization scheme, described in step of doffing start from step S111, it is judged that right position sensor whether output signal, judge if it is not, then continue detection, if it is, enter step S112；
In step S112, the electromagnet coil conducting of ratchet support claw time delay 1-3 second, it is judged that whether delay time arrives, judge if it is not, then continue detection, if it is, enter step S113；
In step S113, mair motor stops and time delay, and judges that delay time is less than or equal to Pa, if less than Pa, then continues time delay and judges；If delay time is equal to Pa, then enter step S114；
In step S114, ring rail starts descending, and judges that downgoing time is less than or equal to Pb, if less than Pb, then continues waiting for and judges；If downgoing time is equal to Pb, then enter step S115；
In step S115, main shaft starts braking, and judges that braking time is less than or equal to Pc, if less than Pc, then continues braking and judges；If braking time is equal to Pc, then blower fan stops.
Another prioritization scheme, described Pa is in the range of the 0.1-9.9 second.
Another prioritization scheme, described Pb is in the range of the 0.1-9.9 second.
Another prioritization scheme, described Pc is in the range of the 1-99 second.
Based on the above control method for reducing spinning frame spinning Yarn break, the present invention provides the device for described control method, and described device includes PLC and the full packages sensor being arranged on spinning frame, cam, right position sensor, rotor, blower fan, mair motor and ratchet support claw；
Described right position sensor and rotor are arranged on the spinning frame of cam periphery, and full packages sensor is arranged on and is equivalent to the position of yarn total amount 90-95% on spool, and cam is fixed with signal sampler；
Described cam has peach point and cam least significant end, when, after peach point with rotor contact, ring rail starts descending, and after cam least significant end and rotor contact, ring rail starts up, when signal sampler coordinates sensing with right position sensor, and right position sensor output signal；
Described full packages sensor, right position sensor, blower fan, mair motor and ratchet support claw electromagnet coil electrically connect with PLC.
The present invention uses above technical scheme, with prior art ratio, have the advantage that and the location-appropriate of original full packages sensor is moved down, i.e. yarn reach spin total amount 90-95% time, full packages sensor is issued by signal, transfers low speed spinning to, and the low cruise Pg time reaches the position of full yarn, execution is doffed, and significantly reduces the end breakage rate of yarn.
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of spool in this clearly demarcated embodiment；
Accompanying drawing 2 is the structural representation of cam in this clearly demarcated embodiment；
Accompanying drawing 3 is the control principle drawing in this clearly demarcated embodiment；
Accompanying drawing 4 is the flow chart of control method in this clearly demarcated embodiment；
Accompanying drawing 5 is the flow chart of low speed stop off step in this clearly demarcated embodiment；
Accompanying drawing 6 is the flow chart of this clearly demarcated embodiment high speed stop off step；
Accompanying drawing 7 is the flow chart of step of stopping in emergency in this clearly demarcated embodiment；
Accompanying drawing 8 is that in this clearly demarcated embodiment doff the flow chart of step in midway；
In figure,
1-spool, 2-cam, 3-peach point, 4-cam least significant end, 5-right position sensor, 6-signal sampler, 7-rotor, 8-full packages sensor, 9-blower fan, 10-mair motor, 11-ratchet support claw electromagnet coil.
Detailed description of the invention
Embodiment, as shown in Figure 1, Figure 2, Figure 3 shows, a kind of for reducing the spinning frame spinning control method of Yarn break and device, this device includes PLC and the full packages sensor 8 being arranged on spinning frame, cam 2, right position sensor 5, rotor 7, blower fan 9, mair motor 10 and ratchet support claw, right position sensor 5 and rotor 7 are arranged on the spinning frame of cam 2 periphery, full packages sensor 8 is arranged on and is equivalent to the position of yarn total amount 90-95% on spool 1, and cam 2 is fixed with signal sampler 6
Cam 2 has peach point 3 and cam least significant end 4, and after peach point 3 contacts with rotor 7, ring rail starts descending, after cam least significant end 4 contacts with rotor 7, ring rail starts up, and after cam 2 is rotated further by contacting to peach point 3 with rotor 7, ring rail completes the spinning stage in a cycle；When signal sampler 6 coordinates sensing with right position sensor 5, right position sensor 5 output signal, rotor 7 is positioned at the rear of peach point 3, and now ring rail must be descending.
Full packages sensor 8, right position sensor 5, blower fan 9, mair motor 10 and ratchet support claw electromagnet coil 11 electrically connect with PLC.
Blower fan 9 refers to induced-draught electric motor；Right position sensor 5 refers to shape cam position sensor.
PLC includes CPU processor, shows and set keyboard, and power supply in the present embodiment and input terminal, relay executing agency still use the device of former spinning frame, and power unit is connected with former spinning frame distribution box AC24V.CPU processor is the core of this PLC, is responsible for receiving the operation from keyboard and requires and send to perform instruction accordingly.
In the present invention, mair motor 10 stops starting descending time interval to ring rail, represents with Pa, and scope is set to the 0.1-9.9 second.
Ring rail starts to go downwards to main shaft and starts the time interval of braking, represents with Pb, and scope is set to the 0.1-9.9 second.
Main shaft starts the time interval that braking stops to blower fan 9, represents with Pc, and scope is set to the 1-99 second.
After fan starting, ring rail is up to the beginning and spins position, continues up certain altitude and stops, and the position that ring rail stops is referred to as right position yarning position, and this right position yarning position is generally in middle yarn position, and the right position yarning position in the present invention refers at spool height about 1/3；Ring rail spins position from beginning and goes upward to the time interval of right position yarning position, represents with Pe, and scope is set to the 0-3.9 second.
After low rate start, spinning frame low-speed running, ring rail comes downwards to the beginning from right position yarning position and spins position, and its time interval Pf represents, scope is set to the 0-3.9 second；When Pe is set to 0, Pf is necessarily set to 0.
After spinning frame starts normally to spin, time of low cruise represents with Pd, and scope is set to the 1-999 second.After spinning frame high-speed cruising, full packages sensor 8 provides signal and turns low cruise, the time of low cruise
Represent with Pg, the adjustable range 1-999 second.
As shown in Figure 4, for reducing the flow chart of Yarn break control method, control method includes starting step, spins little yarn step, spins middle yarn step, spins big yarn step and step of doffing；
Step S101 powers on, and then, in step S102, according to demand and the specification of yarn of system, sets the parameters needed for producing；Pa, Pb, Pc, Pd, Pe, Pf and Pg；
Starting step and start from step S103, blower fan 9 starts, and generally uses hand push button to start blower fan, and while blower fan 9 starts, ring rail goes upward to the beginning and spins position, then spins position from beginning and continues up, and upstream time is Pe, enters step S104；In order to protect ring rail motor, it is also possible to be to begin 5 seconds from fan starting by the operation set of time of ring rail motor, if beginning, to spin position sensor malfunctioning, and ring rail motor stops for up most 5 seconds.
In step S104, ring rail goes upward to right position yarning position, subsequently into step S105；
In step S105, mair motor 10 starts low cruise, general uses manual mode to start mair motor low cruise, and ring rail comes downwards to the beginning from right position yarning position and spins position, and downgoing time is Pf, subsequently into step S106, i.e. spins little yarn step；Step S103, the purpose of S104, S105 are to open air ring in time, shorten air ring wavelength, reduce yarn tension, when the spinning little yarn end breakage rate of yarn is greatly reduced；
In step S106, low cruise spins, it is judged that the time of running is less than or equal to Pd, if the time of operation is less than Pd, then continues low cruise and spins and judge；If the time of operation is equal to Pd, then enter step S108；
In step S108, high-speed cruising spins, it is judged that on spool 1, whether yarn reaches the 90-95% of spinning total amount, if it is not, then continue high-speed cruising spinning, if it is, full packages sensor 8 exports full packages signal and enters step S110；The location-appropriate of original full packages sensor 8 is moved down, i.e. yarn reach spin total amount 90-95% time, full packages sensor 8 is issued by signal；
In step S110, low cruise spins, it is judged that the time of running is less than or equal to Pg, if the time of operation is less than Pg, then continues low cruise and spins and judge；If the time of operation is equal to Pg, then enter step S111, step of i.e. doffing；
In step S111, it is judged that right position sensor 5 whether output signal, judge if it is not, then continue detection, if it is, enter step S112；
In step S112, electromagnet coil 11 conducting of ratchet support claw time delay 1-3 second, it is judged that whether delay time arrives, judge if it is not, then continue detection, if it is, enter step S113；
Full packages sensor 8 position is moved forward to spool 1 spinned 90-95% time, full packages sensor 8 exports full packages signal, then transfers the low cruise Pg time to and reach the position of full yarn, performs to doff, reduces the end breakage rate spinning big yarn.Use after the method, it is possible to accomplish simultaneously little yarn, big yarn stage substantially without broken end, the middle yarn stage can improve again the purpose of spinning speed, makes Yield and quality synchronization raising.
In step S113, mair motor 10 stops and time delay, and judges that delay time is less than or equal to Pa, if less than Pa, then continues time delay and judges；If delay time is equal to Pa, then enter step S114；
In step S114, ring rail starts descending, and judges that downgoing time is less than or equal to Pb, if less than Pb, then continues waiting for and judges；If downgoing time is equal to Pb, then enter step S115；
In step S115, main shaft starts braking, and judges that braking time is less than or equal to Pc, if less than Pc, then continues braking and judges；If braking time is equal to Pc, then blower fan 9 stops, and a cycle spinning process terminates.
As it is shown in figure 5, low speed stop off step: start from low cruise spinning stage S201, in step S202, it may be judged whether have stop off signal, judge if it is not, then continue detection, if it is, enter step S203；
In step S203, it is judged that right position sensor 5 whether output signal, judge if it is not, then continue detection, if it is, enter step S204；
In step S204, mair motor 10 stops, and remembers state and the time of the front low cruise that stops, and enters step S205；
In step S205, it may be judged whether there is blower fan 9 enabling signal, judge if it is not, then continue detection, if it is, enter step S206；
In step S206, mair motor 10 low-speed running, recall state and the time of low cruise before stop off, continue executing with spinning.
As shown in Figure 6, high speed stop off step: start from high-speed cruising spinning stage S301, in step S302, it may be judged whether have stop off signal, judge if it is not, then continue detection, if it is, enter step S303；
In step S303, it is judged that right position sensor 5 whether output signal, judge if it is not, then continue detection, if it is, enter step S306；
In step S306, mair motor 10 stops, and remembers the state of the front high-speed cruising that stops, and enters step S307；
In step S307, blower fan 9 starts, then enter step S308；
In step S308, mair motor 10 low-speed running, enter step S309；
In step S309, it is judged that right position sensor 5 whether output signal, judge if it is not, then continue detection, if it is, enter step S310；
In step S310, mair motor 10 is turned high-speed cruising by low cruise, continues spinning.
The step as it is shown in fig. 7, stop in emergency: start from step 401, presses the key that stops in emergency, and spinning frame is out of service；In step 402, when again driving, pressing fan starting key and enter, blower fan 9 starts, mair motor 10 low-speed running, enters step 403；
In step 403, it may be judged whether there is high-speed cruising signal, judge if it is not, then continue detection, if it is, enter step S404；
In step S404, mair motor 10 is turned high-speed cruising by low cruise, continues spinning.
As shown in Figure 8, step of halfway doffing: start from step S501, press the key that halfway doffs, enter step 503；
In step 503, it is judged that right position sensor 5 whether output signal, judge if it is not, then continue detection, if it is, enter step S504；
In step S504, electromagnet coil 11 conducting of ratchet support claw time delay 1-3 second, it is judged that whether delay time arrives, judge if it is not, then continue detection, if it is, enter step S505；
In step S505, mair motor 10 stops and time delay, and judges that delay time is less than or equal to Pa, if less than Pa, then continues time delay and judges；If delay time is equal to Pa, then enter step S506；
In step S506, ring rail starts descending, and judges that downgoing time is less than or equal to Pb, if less than Pb, then continues waiting for and judges；If downgoing time is equal to Pb, then enter step S507；
In step S507, main shaft starts braking, and judges that braking time is less than or equal to Pc, if less than Pc, then continues braking and judges；If braking time is equal to Pc, then blower fan 9 stops；
Those skilled in the art will recognize that; above-mentioned detailed description of the invention is exemplary; it is to enable those skilled in the art to be better understood from present invention; should not be understood as limiting the scope of the invention; more than start step, spin little yarn step, spin middle yarn step, spin big yarn step and doff in step; only with the startup step of the present invention, and little yarn step can also be spun, spins middle yarn step, spins big yarn step and step of doffing still uses traditional spinning process；Only with the little yarn step of spinning of the present invention, and step can also be started, spins middle yarn step, spins big yarn step and step of doffing still uses traditional spinning process；Equally, it is also possible to individually use any processing step in the present invention；Above example is optimized technical scheme, as long as according to technical solution of the present invention improvements introduced, each fall within protection scope of the present invention.
Claims (5)
1. for reducing the control method of spinning frame spinning Yarn break, it is characterised in that: described control method includes starting step, spins little yarn step, spins middle yarn step, spins big yarn step and step of doffing；
Described spin big yarn step and start from step S108, when the upper yarn of spool (1) reaches to spin the 90-95% of total amount, then full packages sensor (8) output full packages signal enter step S110；
In step S110, low cruise spins, it is judged that the time of running is less than or equal to Pg, if the time of operation is less than Pg, then continues low cruise and spins and judge；If the time of operation is equal to Pg, then enter step of doffing；
Described step of doffing starts from step S111, it is judged that right position sensor (5) whether output signal, judges if it is not, then continue detection, if it is, enter step S112；
In step S112, ratchet support claw electromagnet coil (11) conducting time delay 1-3 second, it is judged that whether delay time arrives, judge if it is not, then continue detection, if it is, enter step S113；
In step S113, mair motor (10) stops and time delay, and judges that delay time is less than or equal to Pa, if less than Pa, then continues time delay and judges；If delay time is equal to Pa, then enter step S114；
In step S114, ring rail starts descending, and judges that downgoing time is less than or equal to Pb, if less than Pb, then continues waiting for and judges；If downgoing time is equal to Pb, then enter step S115；
In step S115, main shaft starts braking, and judges that braking time is less than or equal to Pc, if less than Pc, then continues braking and judges；If braking time is equal to Pc, then blower fan (9) stops；
Realize the device of above control method, full packages sensor (8), cam (2), right position sensor (5), rotor (7), blower fan (9), mair motor (10) and the ratchet support claw including PLC and being arranged on spinning frame；
Described right position sensor (5) and rotor (7) are arranged on the spinning frame of cam (2) periphery, and full packages sensor (8) is arranged on the position being equivalent to upper yarn total amount 90-95% of spool (1), and cam (2) is fixed with signal sampler (6)；
Described cam (2) has peach point (3) and cam least significant end (4), after peach point (3) contacts with rotor (7), ring rail starts descending, after cam least significant end (4) contacts with rotor (7), ring rail starts up, when signal sampler (6) coordinates sensing with right position sensor (5), right position sensor (5) output signal；
Described full packages sensor (8), right position sensor (5), blower fan (9), mair motor (10) and ratchet support claw electromagnet coil (11) electrically connect with PLC；
After described Pg is spinning frame high-speed cruising, full packages sensor (8) provides signal and turns low cruise, the time of low cruise；
Described Pa is that mair motor (10) stops starting descending time interval to ring rail；
Described Pb is that ring rail starts to go downwards to the time interval that main shaft starts to brake；
Described Pc is the time interval that main shaft starts that braking stops to blower fan (9).
2. the control method for reducing spinning frame spinning Yarn break as claimed in claim 1, it is characterised in that: described Pg is in the range of the 1-999 second.
3. the control method for reducing spinning frame spinning Yarn break as claimed in claim 1, it is characterised in that: described Pa is in the range of the 0.1-9.9 second.
4. the control method for reducing spinning frame spinning Yarn break as claimed in claim 1, it is characterised in that: described Pb is in the range of the 0.1-9.9 second.
5. the control method for reducing spinning frame spinning Yarn break as claimed in claim 1, it is characterised in that: described Pc is in the range of the 1-99 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680915.1A CN104451991B (en) | 2013-01-29 | 2013-01-29 | For reducing control method and the device of spinning frame spinning Yarn break |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410680915.1A CN104451991B (en) | 2013-01-29 | 2013-01-29 | For reducing control method and the device of spinning frame spinning Yarn break |
| CN201310033317.0A CN103060974B (en) | 2013-01-29 | 2013-01-29 | Control method and control device for reducing spinning yarn breakage of spinning frame |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310033317.0A Division CN103060974B (en) | 2013-01-29 | 2013-01-29 | Control method and control device for reducing spinning yarn breakage of spinning frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104451991A CN104451991A (en) | 2015-03-25 |
| CN104451991B true CN104451991B (en) | 2016-09-07 |
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| CN201410680915.1A Expired - Fee Related CN104451991B (en) | 2013-01-29 | 2013-01-29 | For reducing control method and the device of spinning frame spinning Yarn break |
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| CN (1) | CN104451991B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359858A (en) * | 1979-07-07 | 1982-11-23 | Zinser Textilmaschinen Gmbh | Method of and apparatus for winding a filament onto a bobbin |
| CN1105400A (en) * | 1994-01-11 | 1995-07-19 | 湘潭纺织机械厂 | Automatic controlling method for electric doffer and apparatus thereof |
| EP1072699A1 (en) * | 1999-07-28 | 2001-01-31 | Murata Kikai Kabushiki Kaisha | Spinning apparatus |
| CN1488798A (en) * | 2002-11-22 | 2004-04-14 | 天津宏大纺织机械有限公司 | Method and device for automatic spinning repiece |
| CN201049986Y (en) * | 2007-04-20 | 2008-04-23 | 经纬纺织机械股份有限公司 | Layer to layer speed regulator for spinning machine |
| CN102767000A (en) * | 2012-08-15 | 2012-11-07 | 欧瑞传动电气有限公司 | Production line intelligent control method of spinning frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2527036B2 (en) * | 1989-06-30 | 1996-08-21 | 株式会社豊田自動織機製作所 | Output method of spinning machine full pipe forecast |
| JP3104391B2 (en) * | 1992-05-11 | 2000-10-30 | 株式会社豊田自動織機製作所 | Rover bobbin rail fixed position stopping method |
-
2013
- 2013-01-29 CN CN201410680915.1A patent/CN104451991B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359858A (en) * | 1979-07-07 | 1982-11-23 | Zinser Textilmaschinen Gmbh | Method of and apparatus for winding a filament onto a bobbin |
| CN1105400A (en) * | 1994-01-11 | 1995-07-19 | 湘潭纺织机械厂 | Automatic controlling method for electric doffer and apparatus thereof |
| EP1072699A1 (en) * | 1999-07-28 | 2001-01-31 | Murata Kikai Kabushiki Kaisha | Spinning apparatus |
| CN1488798A (en) * | 2002-11-22 | 2004-04-14 | 天津宏大纺织机械有限公司 | Method and device for automatic spinning repiece |
| CN201049986Y (en) * | 2007-04-20 | 2008-04-23 | 经纬纺织机械股份有限公司 | Layer to layer speed regulator for spinning machine |
| CN102767000A (en) * | 2012-08-15 | 2012-11-07 | 欧瑞传动电气有限公司 | Production line intelligent control method of spinning frame |
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|---|---|
| CN104451991A (en) | 2015-03-25 |
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