CN101830370B - Winding control method of high-speed stretch yarn machine and winding control device thereof - Google Patents
Winding control method of high-speed stretch yarn machine and winding control device thereof Download PDFInfo
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Abstract
The invention provides a winding control method of stretch yarn, which comprises traverse speed superimposed disturbance and dynamic range correction disturbance. The period of the traverse speed superimposed disturbance is synchronous with the period of the dynamic range correction disturbance, traverse speed superimposed rise time and dynamic range compression time in each period are identical, traverse speed superimposed fall time and dynamic range reduction time in each period are identical, each period randomly changes, and the traverse speed superimposed rise time/dynamic range compression time and the traverse speed superimposed fall time/dynamic range reduction time in each period also change randomly. The invention also provides a winding control device for realizing the method. The invention is used for preventing superimposed winding and improving hard protruding-should states during winding finished product yarn on a high-speed stretch yarn machine, and the stretch yarn coil produced by the method has better forming shape and unwinding effect.
Description
Technical field
The present invention relates to be used on the high-speed stretch yarn machine elastic filament finished product the reel method and the coiling control setup of control.
Background technology
The flow process of chemical-fibres filaments processing is broadly divided into following four procedures: polyester slice is processed into the preorientation precursor, the preorientation precursor is processed into elastic filament, elastic filament is woven into lining, lining is handled and dyeed.Wherein, The preorientation precursor is being processed in the operation of elastic filament; The preorientation precursor is machined to elastic filament through high-speed stretch yarn; The elastic filament finished product need be wound on the paper web usually, and the formation standard is 5kg/ a taper silk volume, supplies the loom (like water-jet loom, air-jet loom etc.) of later process to be woven into chemical fibre or mixed cloth.
Along with the progress of weaving technology, present water-jet loom, air-jet loom be high speedization more and more, and elastic filament has generally surpassed 1km/min as the extraction speed of parallel on these looms.As shown in Figure 1, if coiling gets very neatly thereby elastic filament 2 constant speed on paper web 1 is reeled, then carry out high speed when reeling off raw silk from cocoons at loom, the elastic filament 2 of debatching is easy to that quilt is broken owing to overlap each other incarceration.The frequent fracture of wire of tram will have a strong impact on speed of production in the weaving process, increase the manipulation strength of operating personal.
For improving the coiling effect of elastic filament, the spooler on the stretch yarn machine has generally adopted stray winding mechanism.This mechanism of reeling is as shown in Figure 2, is that elastic filament 2 is reeled with different windings on paper web 1 at interval, prevents too neatly to cause overlapping.Its control method is as shown in Figure 3, is when elastic filament is wound up on the paper web through the conductive filament head that traverses, and being provided with one was the swing speed that changes in the cycle with 5～10 seconds, and amplitude of fluctuation is near the speed of traversing of technological requirement.The shortcoming of the traditional speed of traversing stacking method is: because elastic filament was fixed in the operating stack cycle of traversing, speed stack amplitude is also fixed, and therefore in the stack repetition is arranged, and causes the complexity of coiling not high enough.
When being wound up into the both ends of paper web, elastic filament need reverse end for end to unroll; Along with the elastic filament coiling that on paper web, is layering; Can be wrapped in that harden in the paper web termination even the phenomenon of convexity because elastic filament too much causes in paper web two ends stacks, form crossette 3 as shown in Figure 4.Therefore at present on the winding unit of high-speed stretch yarn machine, all can adorn a traverse correcting part, be used for the coiling amplitude that elastic filament is revised in compression regularly, make elastic filament periodically less than the position at paper web two ends just tune unroll, prevent that two ends are really up to the mark and protruding.The early stage time relay control single step traverse modification method (like Ba Mage Barmag 700 and the grand source of domestic imitation type FK6-700 type thereof etc.) that adopts is eliminated because effect is bad.What generally adopt at present is four-step rule traverse modification method (like the FK6-900 type of Hong Yuan or longitude and latitude frame etc.), drives the traverse main contactor through the PLC output point and accomplishes with the rotating AC contactor and control.Its control method is as shown in Figure 5, and wrapping wire scope the wideest (the initial point stroke length is the longest) when initial point narrows down the coiling scope and in correction, set different traverse correction amount of compressions.Correction changes by four step periods, and erection rate (slope) is constant, and pause (being in adjacent two corrections the part that need not to revise to be arranged) is arranged in the makeover process.The shortcoming of traditional four-step rule traverse modification method is: control is flexible not high with programmability, can not accomplish complicated control action, can not eliminate fully therefore that harden in the package termination and convexity.
The content of invention
Above-mentioned deficiency to existing high-speed stretch yarn machine coiling controlling method; The applicant improves through research; The coiling controlling method of another kind of high-speed stretch yarn machine is provided, stray winding and improve hard-edge crossette situation, the elastic filament volume that utilizes the inventive method to produce when being used on the high-speed stretch yarn machine finished silk rolling; Better forming shape and debatching effect are arranged, and the applicant provides the coiling of realizing this method control setup simultaneously.
Technical scheme of the present invention is following:
A kind of coiling controlling method of high-speed stretch yarn machine; Comprise traverse speed stack disturbance and traverse correction disturbance; Said the traverse cycle of speed stack disturbance and the cycle of said traverse correction disturbance are synchronous; The speed of traversing stack build up time in each cycle is identical with the traverse compression time, and the speed of the traversing stack in each cycle is identical with the traverse recovery time fall time; Each cycle is random fluctuation, and the speed of the traversing stack build up time/traverse compression time in each cycle is with the speed stack fall time of traversing/the traverse recovery time also is random fluctuation.
Said amplitude of traversing speed stack disturbance is random fluctuation.
The correction of said traverse correction disturbance is random fluctuation.
Concrete steps are following:
1) speed of traversing that will reel accelerates to the speed of technological requirement, simultaneously the traverse corrected range is revert to initial point;
2) obtain following parameter in this disturbance cycle: the speed of traversing stack build up time/traverse compression time Tu1, the speed of traversing stack fall time/traverse recovery time Td1, the speed of traversing stack perturbation amplitude D1, traverse correction disturbance correction H1;
3) according to speed stack perturbation amplitude D1 and the speed of the traversing stack rising time T u1 of traversing; Progressively improve the speed of traversing in proportion; Calculate simultaneously in the speed stack rising time T u1 that traverses and reach the required traverse erection rate of traverse correction disturbance correction H1, according to this traverse erection rate compression traverse; After the speed stack rising time T u1 that traverses uses up; According to speed stack perturbation amplitude D1 and the speed of traversing stack Td1 fall time of traversing; Progressively reduce the speed of traversing in proportion, calculate simultaneously in speed stack Td1 fall time that traverses and return the required traverse erection rate of initial point, according to this traverse erection rate reduction traverse from traverse correction disturbance correction H1; Make the traverse corrected range just get back to initial point, accomplish a disturbance cycle;
4) repeat above-mentioned steps 2), step 3), carry out the next disturbance cycle, till obtaining halt command.
The said speed stack build up time/traverse compression time Tu1 that traverses is that the scope of A is 40%～60% according to the cycle T of setting and inner change percentum A acquisitions: the Tu1=A * T that multiplies each other, make Tu1 T 1/2 near change.
Be that the scope of A is 40%～60% according to the cycle T of setting and inner change percentum A acquisitions: the Td1=A * T that multiplies each other the said speed stack fall time of traversing/traverse recovery time Td1, make Td1 T 1/2 near change.
The said speed stack perturbation amplitude D1 that traverses is that said B changes in 0～100%, the numerical difference between distance＞40% of adjacent twice B according to the disturbance amplitude peak D that sets and inner pseudo random number percentum B acquisitions: the D1=B * D that multiplies each other.
Said traverse correction disturbance correction H1 is according to the traverse correction ultimate range L, traverse correction minor increment S and the inner pseudo random number percentum B that set, by formula calculates to obtain: H1=S+ (L-S) * B, said B changes in 0～100%.
The present invention also provides a kind of coiling control setup of high-speed stretch yarn machine; Comprise the MCU arithmetic element, and isolate input circuit, digital quantity spacing output circuit, parameter current failure memory module, the given D/A output circuit of traverse and the given D/A output circuit that traverses with said MCU arithmetic element bonded assembly power rectifier and translation circuit, RS485 communication interface circuit, digital quantity; Said power rectifier and translation circuit are isolated input circuit with said digital quantity respectively and are connected with the digital quantity spacing output circuit.
Useful technique effect of the present invention is:
The present invention can accomplish complicacy, the flexible coiling speed superposing control of traversing, and the amplitude of the cycle of each stack, pick-up time, deceleration time, stack can be different, form the speed stack that never repeats.Improve the anti-folded effect of coiling of elastic filament, reached the not perfect condition of fracture of wire of high speed debatching.
The present invention adopts MCU arithmetic element synchro control traverse speed stack frequency converter and traverse correction frequency converter, has cancelled original traverse main contactor and rotating AC contactor.Because the traverse correction adopts frequency converter to drive, and has improved control flexibility and programmability.Therefore can accomplish more complicated control action.
The present invention is in coiling traverses the process of velocity variations, and compression distance and compression speed that can the correction of synchro control traverse make and traverse the speed stack for a long time that the traverse correction is also many; The speed of traversing superposes after a little while, and the traverse correction is also few.And make the initial point of traverse correction be synchronized with the summit of the speed stack of traversing fully.Improved the molding effect of package, made that the two ends of package are concordant with inside, hardness is consistent.And the tension force that makes elastic filament reel in any position of paper web reaches unanimity.
Description of drawings
Fig. 1 is the neat finished product package scheme drawing of elastic filament constant speed coiling stack.
Fig. 2 is the finished product package scheme drawing of elastic filament through the speed stack of traversing.
Fig. 3 is the at present traditional speed of traversing stack sequential chart.
Fig. 4 is the finished product package scheme drawing that hard-edge and crossette are arranged.
Fig. 5 is that traditional four-step rule traverse is repaiied sequential chart at present.
Fig. 6 is the sequential chart of the inventive method.
Fig. 7 is the structured flowchart of apparatus of the present invention.
Fig. 8 the has been integrated stretch yarn machine electric-control system block diagram of contrive equipment.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is specified through embodiment.
As shown in Figure 6; The inventive method comprises traverse speed stack disturbance and traverse correction disturbance; And the cycle of the speed of traversing stack disturbance and the cycle synchronisation of traverse correction disturbance; The speed of traversing stack build up time in each cycle is identical with the traverse compression time, and the speed of the traversing stack in each cycle is identical with the traverse recovery time fall time; Each cycle is random fluctuation, and the speed of the traversing stack build up time/traverse compression time in each cycle is with the speed stack fall time of traversing/the traverse recovery time also is random fluctuation.In addition, the amplitude of the speed of traversing stack disturbance is random fluctuation, and the correction of traverse correction disturbance also is random fluctuation.Realize that traverse continues to revise nothing and pauses.
The concrete steps of the inventive method are described in conjunction with Fig. 6:
1) speed of traversing that will reel accelerates to the speed of technological requirement about 20 seconds, simultaneously the traverse corrected range is revert to initial point;
2) obtain interior following parameter of this disturbance cycle:
This speed stack build up time/traverse compression time Tu1 that traverses: be that the scope of A is 40%～60% according to the cycle T of setting and inner change percentum A acquisitions: the Tu1=A * T that multiplies each other, make Tu1 T 1/2 near change;
This speed stack fall time of traversing/traverse recovery time Td1: be that the scope of A is 40%～60% according to the cycle T of setting and inner change percentum A acquisitions: the Td1=A * T that multiplies each other, make Td1 T 1/2 near change;
This speed stack perturbation amplitude D1 that traverses: be that said B changes in 0～100%, the numerical difference between distance＞40% of adjacent twice B according to the disturbance amplitude peak D that sets and inner pseudo random number percentum B acquisitions: the D1=B * D that multiplies each other;
This traverse correction disturbance correction H1: be according to the traverse correction ultimate range L, traverse correction minor increment S and the inner pseudo random number percentum B that set, by formula calculate acquisition: H1=S+ (L-S) * B, said B changes in 0～100%;
3) according to speed stack perturbation amplitude D1 and the speed of the traversing stack rising time T u1 of traversing; Progressively improve the speed of traversing in proportion; Calculate simultaneously in the speed stack rising time T u1 that traverses and reach the required traverse erection rate of traverse correction disturbance correction H1, according to this traverse erection rate compression traverse; After the speed stack rising time T u1 that traverses uses up; According to speed stack perturbation amplitude D1 and the speed of traversing stack Td1 fall time of traversing; Progressively reduce the speed of traversing in proportion, calculate simultaneously in speed stack Td1 fall time that traverses and return the required traverse erection rate of initial point, according to this traverse erection rate reduction traverse from traverse correction disturbance correction H1; Make the traverse corrected range just get back to initial point, accomplish first disturbance cycle;
4) repeat according to step 2), step 3), carry out the next disturbance cycle, go round and begin again, till obtaining halt command.
As shown in Figure 7, the present invention provides the coiling control setup of realizing said method simultaneously.This device comprises MCU arithmetic element 4 and connected power rectifier and translation circuit 1, RS485 communication interface circuit 2, digital quantity isolation input circuit 3, digital quantity spacing output circuit 6, parameter current failure memory module 5, the given D/A output circuit 7 of traverse and the given D/A output circuit 8 that traverses; Power rectifier and translation circuit 1 are isolated input circuit 3 with digital quantity respectively and are connected with digital quantity spacing output circuit 6.
Fig. 8 the has been integrated stretch yarn machine electric-control system block diagram of said apparatus, apparatus of the present invention are the coiling traverse controller shown in Fig. 8.The connection mode of apparatus of the present invention in system is following: the corresponding interface of the AC15V of power rectifier and translation circuit 1, AC18V mouth power connection voltage transformer; The RS485 mouth of the input termination man-machine interface of RS485 communication interface circuit 2; Start and stop control module and traverse initial point insert digital quantity respectively near switch P S and isolate input circuit 3; Digital quantity spacing output circuit 6 meets traverse frequency converter V2; The given D/A output circuit 7 of traverse meets traverse frequency converter V2, and the given D/A output circuit 8 that traverses meets the frequency converter V1 that traverses.Other modules, equipment and connection mode thereof in the stretch yarn machine electric-control system shown in Figure 8 except that apparatus of the present invention is all identical with prior art.
The working process of apparatus of the present invention is described below in conjunction with Fig. 7, Fig. 8.
Working process is following:
See Fig. 8,,, be integrated in the high-speed stretch yarn machine electric-control system of our company's exploitation as a component part of the electric-control system of high-speed stretch yarn machine with apparatus of the present invention (can be described as coiling traverse controller) hereinafter to be referred as controller.
See Fig. 7, Fig. 8, controller is accepted man-machine interface (color touch screen) control, by man-machine interface various operational factors is set, and shows its running state.Controller passes through RS485 communication interface circuit 2 and accepts the cycle T of man-machine layout setting, disturbance amplitude peak D, the ultimate range L of traverse correction, the parameters such as minor increment S of traverse correction.For The whole control system, two board faces about control respectively, about can be the mutually independent technological parameter that is provided with separately of face, be independent of each other, below the control of independent one side is described.The parameter that is provided with that man-machine interface is sent here is remembered in parameter current failure memory module 5, and when sending a telegram here after the assurance power down, setup parameter can not lost again.
See Fig. 7, Fig. 8; When controller is isolated input circuit 3 when obtaining startup command that the start and stop control modules send from digital quantity; At first send specified rate to the frequency converter V1 that traverses, control the electrical motor M1 that traverses accelerates to technological requirement about 20 seconds the speed of traversing through the given D/A output circuit 8 that traverses; Send instruction through the given D/A output circuit 7 of traverse to traverse frequency converter V2 simultaneously; Control traverse correction electrical motor M2 moves to initial point; When initial point arrives; The traverse initial point that is contained on the traverse correction mechanism sends signal near switch P S, isolates input circuit 3 through digital quantity and sends controller to, and controller is thought the initial point completion that resets.
See Fig. 7, accelerate to the speed of technological requirement when the speed of traversing after, controller calculates following parameter through inner MCU arithmetic element 4:
This speed stack build up time/traverse compression time Tu1 that traverses: according to cycle T of setting and inner change percentum A, calculate Tu1=A * T, the scope of A is 40%～60%, and Tu1 is moved within narrow limits near cycle T/2 at every turn;
This speed stack fall time of traversing/traverse recovery time Td1: according to cycle T of setting and inner change percentum A, calculate Td1=A * T, the scope of A is 40%～60%, and Td1 is moved within narrow limits near cycle T/2 at every turn;
This speed stack perturbation amplitude D1 that traverses: according to the disturbance amplitude peak D and the inner pseudo random number percentum B that set; Calculate D1=B * D; B changes in 0～100%; And the numerical difference between that guarantees adjacent twice B is apart from＞40%, avoids the continuous several times little amplitude that changes, and improves anti-folded effect.
This traverse correction disturbance correction H1: according to the traverse correction ultimate range L, traverse correction minor increment S and the inner pseudo random number percentum B that set, calculate H1=S+ (L-S) * B, B changes in 0～100%.Guarantee the traverse correction that big interference magnitude is corresponding big, vice versa.The distance that makes traverse dwindle is corresponding with the amplitude that the speed of traversing improves, and keeps elastic filament in winding process, the tension force substantially constant.
See Fig. 7, Fig. 8; Controller is through inner MCU arithmetic element 4; According to speed stack perturbation amplitude D1 and the speed of the traversing stack rising time T u1 of traversing; Calculate in proportion the speed of the traversing superposition that progressively improves, the velocity amplitude sum of traverse speed superposition and technological requirement constantly is sent to the frequency converter V1 that traverses through the given D/A output circuit 8 that traverses, control the electrical motor M1 that traverses and progressively improve the speed of traversing; Calculate simultaneously in the speed stack rising time T u1 that traverses and reach the required traverse erection rate of traverse correction disturbance correction H1; Be sent to traverse frequency converter V2 through the given D/A output circuit 7 of traverse, and send through digital quantity spacing output circuit 6 and just to change order and make traverse correction electrical motor M2 compression traverse and control its startup and stop.After the speed stack rising time T u1 that traverses uses up, according to speed stack perturbation amplitude D1 and the speed of traversing stack Td1 fall time of traversing, use the same method and control the electrical motor M1 that traverses, progressively reduce the speed of traversing in proportion; Calculate simultaneously in speed stack Td1 fall time that traverses and return the required traverse erection rate of initial point from traverse correction disturbance correction H1, using the same method to send inverted command and control its startup stops, control traverse correction electrical motor M2 reduction traverse.When making the speed of traversing revert to the speed of technological requirement, the traverse corrected range is also just got back to initial point, accomplishes first disturbance cycle.
Disturbance cycle accomplishes, and recomputates parameters such as next time each item time, amplitude, distance.The operation that goes round and begins again is up to isolating through digital quantity till input circuit 3 obtains halt commands.
Above-mentioned each circuit module is the commercial goods, and connection mode between each circuit module and working process all adopt prior art.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present invention and design, can make other improvement and variation.
Claims (8)
1. the coiling controlling method of a high-speed stretch yarn machine; Comprise traverse speed stack disturbance and traverse correction disturbance; It is characterized in that: said the traverse cycle of speed stack disturbance and the cycle of said traverse correction disturbance are synchronous; The speed of traversing stack build up time in each cycle is identical with the traverse compression time, and the speed of the traversing stack in each cycle is identical with the traverse recovery time fall time; Each cycle is random fluctuation, and the speed of traversing stack build up time or traverse compression time in each cycle are random fluctuations, and the speed of traversing stack fall time or traverse recovery time in each cycle also are random fluctuations; Concrete steps are following:
1) speed of traversing that will reel accelerates to the speed of technological requirement, simultaneously the traverse corrected range is revert to initial point;
2) obtain interior following parameter of this disturbance cycle: the speed of traversing stack build up time or traverse compression time Tu1, the speed of traversing stack fall time or traverse recovery time Td1, the speed of traversing stack perturbation amplitude D1, traverse correction disturbance correction H1;
3) according to speed stack perturbation amplitude D1 and the speed of the traversing stack rising time T u1 of traversing; Progressively improve the speed of traversing in proportion; Calculate simultaneously in the speed stack rising time T u1 that traverses and reach the required traverse erection rate of traverse correction disturbance correction H1, according to this traverse erection rate compression traverse; After the speed stack rising time T u1 that traverses uses up; According to speed stack perturbation amplitude D1 and the speed of traversing stack Td1 fall time of traversing; Progressively reduce the speed of traversing in proportion, calculate simultaneously in speed stack Td1 fall time that traverses and return the required traverse erection rate of initial point, according to this traverse erection rate reduction traverse from traverse correction disturbance correction H1; Make the traverse corrected range just get back to initial point, accomplish a disturbance cycle;
4) repeat above-mentioned steps 2), step 3), carry out the next disturbance cycle, till obtaining halt command.
2. according to the coiling controlling method of the said high-speed stretch yarn machine of claim 1, it is characterized in that: said amplitude of traversing speed stack disturbance is random fluctuation.
3. according to the coiling controlling method of claim 1 or 2 high-speed stretch yarn machines, it is characterized in that: the correction of said traverse correction disturbance is random fluctuation.
4. according to the coiling controlling method of the said high-speed stretch yarn machine of claim 1; It is characterized in that: said speed stack build up time or the traverse compression time Tu1 of traversing; Be according to the cycle T of setting and inner change percentum A acquisition: the Tu1=A * T that multiplies each other; The scope of A is 40%～60%, make Tu1 T 1/2 near the change.
5. according to the coiling controlling method of the said high-speed stretch yarn machine of claim 1; It is characterized in that: said speed stack fall time or the traverse recovery time Td1 that traverses; Be according to the cycle T of setting and inner change percentum A acquisition: the Td1=A * T that multiplies each other; The scope of A is 40%～60%, make Td1 T 1/2 near the change.
6. according to the coiling controlling method of the said high-speed stretch yarn machine of claim 1; It is characterized in that: the said speed stack perturbation amplitude D1 that traverses; Be according to the disturbance amplitude peak D that sets and inner pseudo random number percentum B acquisition: the D1=B * D that multiplies each other; Said B changes in 0～100%, and the numerical difference between of adjacent twice B is apart from＞40%.
7. according to the coiling controlling method of the said high-speed stretch yarn machine of claim 1; It is characterized in that: said traverse correction disturbance correction H1; Be according to the traverse correction ultimate range L, traverse correction minor increment S and the inner pseudo random number percentum B that set; By formula calculate and obtain: H1=S+ (L-S) * B, said B changes in 0～100%.
8. the coiling control setup of a high-speed stretch yarn machine; It is characterized in that: comprise the MCU arithmetic element, and isolate input circuit, digital quantity spacing output circuit, parameter current failure memory module, the given D/A output circuit of traverse and the given D/A output circuit that traverses with said MCU arithmetic element bonded assembly power rectifier and translation circuit, RS485 communication interface circuit, digital quantity; Said power rectifier and translation circuit are isolated input circuit with said digital quantity respectively and are connected with the digital quantity spacing output circuit; The corresponding interface of the AC15V of power rectifier and translation circuit, AC18V mouth power connection voltage transformer; The RS485 mouth of the input termination man-machine interface of RS485 communication interface circuit; Start and stop control module and traverse initial point insert digital quantity respectively near switch P S and isolate input circuit; The digital quantity spacing output circuit meets traverse frequency converter V2, and the given D/A output circuit of traverse meets traverse frequency converter V2, and the given D/A output circuit that traverses meets the frequency converter V1 that traverses.
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| DE102012024839A1 (en) * | 2012-12-19 | 2014-06-26 | Saurer Germany Gmbh & Co. Kg | Image interference method and apparatus for winding a cheese |
| JP2015178403A (en) * | 2014-03-19 | 2015-10-08 | 村田機械株式会社 | Yarn winding machine and winding method |
| CN106348093B (en) * | 2016-08-31 | 2022-07-01 | 广东新会美达锦纶股份有限公司 | Edge stroke control system with random spinning grading range and method thereof |
| CN106743991B (en) * | 2016-11-28 | 2022-12-16 | 江苏悦达家纺有限公司 | Automatic winding drum arranging device in winding process and arranging method thereof |
| CN108792782B (en) * | 2018-05-02 | 2020-06-05 | 浙江科技学院 | Automatic bobbin winder shifting fork operation device and operation method thereof |
| CN113651173B (en) * | 2021-08-13 | 2022-11-11 | 浙江泰坦股份有限公司 | Yarn electronic forming anti-overlapping method |
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