Abstract: This article introduced the high speed precise digital coiling plan market prospect, the realization principle, the technical method and the main performance index, and have carried on the description to various functions part.

Key word: The winding machine, the coiling, 横动, ultra feed, the electron leads the gauze, the coiling, leads the gauze range of movement, a is preciser than overlapping coiling

The recent years, esthetically realize the enhancement and the living standard enhancement along with the people, the upscale color weaves the product even more to receive the people to like. Not merely the real silk, the chemical fiber silk, the rayon, the fabric blending gauze and the cotton yarn and so on also may use the color silk to weave, this urges the gauze tube to dye the craft to weave the profession in the color to obtain the widespread application. Before the common gauze tube dyes needs the semifinished product gauze which buys from outside to wind suits dyes to the pony roll uses "the pine -like pony roll" to use for 下道 the working procedure, therefore the pine -like precision winding machine demand increases day by day.

The domestic existing pine -like winding machine entire machine structure generally uses the single spindle centralized type of drive, usually includes the coiling, leads the gauze ultra, feeds and so on several kind of movements, uses the mechanical gear and the cam gear completes, different winds the tube craft in view of each kind of yarn, the equipment adjustment quite is difficult; Leads the gauze organization to use is the trough tube and revolves 翼片, is easy to some upscale yarns to have the damage; Simultaneously because uses is the mechanical drive structure, the coiling speed is not high. At present the overseas this kind of pine's -like winding machine already completely used based on the electronic gear and the electronic cam entire digital coiling structure, namely single spindle independent transmission; The coiling, 横动 leads the gauze, the yarn ultra feeds, the tensity compensates uses the independent electrical machinery control, between various electrical machinery movement relations passable parameter establishment has carried on the description, is nimble should to each kind of characteristic yarn coiling craft need; 横动 leads the gauze to use is "leads the gauze", namely the popular name "the rabbit head", is very small to the yarn damage, specially is suitable to the upscale color weaves the yarn the coiling; Moreover because various electrical machinery on machinery not direct transmission connection, auxiliary by high speed precise movement control software algorithm, may very conveniently realize the high speed precise overlapping coiling, 络纱 the speed far is bigger than the mechanical type pine -like winding machine, greatly enhanced 络纱 the efficiency.

When Beijing and advantage the electrical machinery technology limited company through and the domestic famously spinning machine group cooperation, in view of the precise pine -like winding machine craft characteristic, in the foundation which own many years servo and the movement control technology accumulates, in domestic develops for the first time successfully comprehensively has the independent intellectual property rights the high speed precise pine -like winding machine electricity control plan. The entire plan has the good performance price compared to, greatly has promoted the domestically produced pine -like winding machine automated level, the main technical specification has achieved the overseas similar equipment level.

Systems control plan synopsis
Take the single spindle control as the example, the systems control plan principle like chart one shows, 横动 the electricity engine shaft connects a wire wheel, revolves the actuation fastening through the wire wheel pro and con to lead about the gauze in the steel wire to move, realization yarn 横动 row of line movement; The coiling electrical machinery direct drive gauze tube revolves, the realization yarn coiling movement, after above 横动 and the coiling two movements syntheses is the performance for the yarn by the spiral line shape back and forth coiling in the gauze tube surface. The tensity compensates the electrical machinery and ultra feeds the electrical machinery then mainly uses in to control in the yarn coiling process the tensity.

In this plan 横动 led the gauze electrical machinery to use a process unique design ultra small inertia servo electrical machinery, the coiling and ultra feeds the electrical machinery to use also is specially designs has custom-made high speed not brushes the direct current machine, the tensity electrical machinery has used ordinary step 进电 machine. In the chart "the single spindle control driver" is and when the advantage the electrical machinery company in the innate development entire digital permanent magnetism exchange servo driver foundation, inserted the precision winding machine high-velocity electron to lead the gauze movement control algorithm, the coiling not brushes the electrical machinery speed control and the yarn tensity control strategy special-purpose motor-driven control system. Overall system structure simple, function complete, "the single spindle control driver" the internal memory parameter may facilitate the establishment yarn coiling forming through the keyboard or the mailing address adjustment the geometry parameter (full tube diameter side, receives scope and so on) side, the coiling line speed, the coiling compared to, the reciprocation range of movement length, the gauze tube is hard the differential motion scope, the differential motion cycle, the differential motion cam curve which repairs and maintains and so on each craft parameter, simultaneously has RS232, RS485, the CAN main line three kind of correspondences connections, may very conveniently complete the multi- spindles networking control, completely realizes the flexibility numerical code coiling. The main technical parameter enumerates as follows:

May realize the precise coiling and the numerical control lamination coiling two kind of functions;
The coiling compares the control area 2.000 ~ 12.000;
横动 the servo electrical machinery commutation acceleration reaches as high as 8000r/s2, the reciprocation frequency most greatly is 800/minutes, namely each minute 1,600 commutation;
横动 the servo electrical machinery has the range of movement automatically to look for the zero function outside, does not need to meet the zero position sensor;
In inlays has the coiling ultra, feeds with the tensity compensates three electrical machinery the control functions, may with the frequency changer, direct current not brush the electrical machinery driver, the step of 进电 machine driver convenience connection, the realization coiling electrical machinery, ultra feeds the electrical machinery and the tensity compensates the electrical machinery the control;
Has the spatial tube diameter calibration function;
The many kinds of real-time parameters demonstrated, like actual line speed, gauze tube diameter, reciprocation frequency and so on;
Many kinds of fail safe measure, like parameter exceptionally, electrical machinery overspeed, range of movement ultra difference, hardware breakdown and so on;
The real time operation parameter has the electricity protection function, like coiling length, coiling diameter and so on;

横动 servo electrical machinery control synopsis

In order to guarantee the gauze tube has the good dyeing performance, needs from to start the coiling to the full tube between on any diameter, on the pony roll yarn becomes in the space separate grade crossing, each other all not parallel, guaranteed each yarn has not overlapped, is said needs compared to carry on the close regulation to the gauze tube coiling. The so-called coiling ratio, is 横动 leads the gauze hook every time to move back and forth a time, the gauze tube coiling 圈数. The overlapping coiling has traditional the trough tube coiling (free coiling), the constant coiling compared to the precise coiling, the numerical control lamination coiling three kind of forms, this plan mainly realized the constant coiling a to be preciser than overlapping coiling and the numerical control lamination coiling two kind of functions.

In order to realize the precise overlapping coiling, "the single spindle control driver" through the real-time gathering coiling electrical machinery feedback encoder pulse signal computation actually time speed, according to the precise coiling technological requirement, obtains 横动 the servo electrical machinery speed with the unique numerical control algorithm to assign the instruction, guaranteed 横动 servo electrical machinery rotational speed and coiling electrical machinery rotational speed according to coiling compared to the definition maintains the certain relations, lets the yarn circle by the spatial spiral line shape reciprocation in the gauze tube. Through close regulation coiling compared to, reciprocation coiling yarn each other overlapping, does not overlap, in other words ingeniously uses the electronic gear and the electronic cam substitution mechanical gear and the cam drive solid 现纱 tube precise coiling.

In order to realize the precise coiling high speed performance, needs 横动 the servo electrical machinery when makes the reciprocal motion, can fast commutate, this requested the servo electrical machinery to have the higher torque inertia compared to, has carried on the unique optimized design for this to 横动 the servo electrical machinery, guaranteed the electrical machinery rotor inertia was as far as possible small. Simultaneously the servo driver electrical machinery control algorithm has also made the pointed design in the high dynamic responsive aspect, uses the PID control union fuzzy control algorithm, guaranteed the servo electrical machinery speed in does not have in the over modulation situation, in the short time completes the commutation as far as possible.

Because 横动 the electrical machinery commutates time, no matter is quick, can because commutates adds and subtracts fast creates has the hard side phenomenon appearance, hard eliminates the principle according to the mechanical type winding machine, center has inserted the differential motion cam movement rule algorithm in "the single spindle control driver", periodically the real-time transformation 横动 leads the gauze to trade 向点, completes hardly side eliminates the function. Simultaneously may act according to the different yarn characteristic, chooses the different differential motion cam curve, the establishment differential motion cycle and the scope.

Besides adopts the differential motion electron cam algorithm to eliminate the hard side technology, this plan also rich originally realized has led the gauze smallest commutation 弧长control algorithm, fully has used the DSP digital signal processor high speed operation ability, the real-time computation and the revision 横动 led the gauze servo electrical machinery and the gauze tube coiling electrical machinery transmission cam curve rule, guaranteed in any coiling rotational speed and under the coiling diameter condition, led the gauze commutation 弧长to be smallest, maximum limit eliminated the coiling gauze tube the hard side phenomenon.

Volume threading speed control synopsis
Theoretically analyzes, the gauze tube coiling line speed changes along with the gauze tube coiling radius change, but the line speed change directly causes the coiling tensity undulation, thus can affect the gauze tube the formed quality and the yarn mechanical physical performance. If the outer layer gauze tensity is bigger than the inner layer gauze the tensity, is easy to produce the pony roll outer layer gauze extrusion inner layer gauze 胀side the phenomenon; If 络纱 in process tensity change oversized, also can be easy to create the yarn because 络纱 the tensity differently to appear the yarn stretch rate to be different, this request in winds in the tube process to reduce the tensity and the pressure undulation as far as possible. Therefore besides the guarantee constant gauze tube pressure, guaranteed the coiling speed relatively is stable is controls the tensity undulation an important measure.

Tensity control synopsis
When precise coiling processing yarn tensity size direct influence pony roll coiling pine 紧度, thus affects the pony roll to circle the gauze the capacity and the dyeing difficulty, and influence yarn processing end breakage, thus each kind of precise coiling winding machine all has the yarn the tensity control link, specially supplies the yarn processing tensity which the pony roll dyes uses, is not suitable oversized, obtains the pine -like a reel, is advantageous to the dyeing. This plan besides adopts the measure guarantee relatively constant yarn volume threading speed, but also other design has a tensity to decrease progressively the adjusting device, uses a step of 进电 machine control the tensity to adjust the cup bar. In the on-line speed 升� process, through the adjustment step of 进电 machine corner condition, the control tensity adjusts the cup bar the angle, the change yarn through the gate grid supports on both sides dynamics, guaranteed the coiling tensity is constant; Moreover defers to the special gauze tube "in the tight outside pine" the technological requirement, may act according to the gauze tube coiling radius adjustment tension rod the angle, when the guarantee coiling gauze tube minor diameter coiling tensity big, when large diameter the coiling tensity is small.

Ultra feeds the electrical machinery control synopsis
In the precise coiling process the yarn line speed definitely is bigger than the gauze tube to draw back the threading speed, the tensity value also therefore increases, but the oversized tensity not only cannot obtain the high quality gauze tube, moreover can increase the yarn beheading, reduces the production efficiency. Therefore, this plan has used so-called "ultra feeds" the means, namely sends out the yarn the speed to be bigger than the volume to take the yarn the speed, yarn coiling when the pony roll "hardly tows" the yarn condition to change relaxes the volume to take the yarn the condition, thus reduces beheads, obtains satisfaction the pine -like coiling pony roll. The yarn in ultra feeds in the drum to surround 圈数 is decided ultra by feeds the quantity the size, is ordinary ultra feeds the quantity control value in 1.02 ~ 1.06 (a situation) between.

Conclusion
Precisely winds the tube, 络丝 the machine is in the textile craft improves the textile quality the essential equipment, the high speed precise digital coiling plan success has mastered in the yarn high speed precise coiling craft "KNOW HOW", completely uses the magnetoelectric machine to actuate the technology, the machine energy consumption to be lower than traditional by far the frequency conversion electrical machinery transmission equipment. Simultaneously because has used the flexibility numerical code control technology, extremely suits to the upscale fabric multi- varieties, the small batch gauze tube production, has the good social economy benefit. With advantage when the electrical machinery technology company develops this innovation solution has involved the electronic control, the digital servo electrical machinery and the actuation, the precise movement control, and technology and so on computer network correspondence, is the typical high-tech integration of machinery control plan, also is uses the numerical control technological transformations tradition industry the typical case.

Author synopsis: He Zhenqiu (1,969 ~), male, Hunan Xiangtan person, senior engineer. The research area including the numerical control technology, exchanges the servo technology and the precise movement control technology, at present mainly devotes to the numerical control, servo and the movement control technology profession application.

Author unit: When Beijing and advantage the electrical machinery technology limited company, the Beijing Haidian Disctrict studies clear road 11, 100,085
Telephone 010-62932100

Reference:

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[ 4 ] Luchinger H. Uses in precise coiling technology which the pony roll gauze dyes [ J> Knitting industry,1998, (4):44-48.