CN101804925A

CN101804925A - Yarn winding machine and yarn winding method

Info

Publication number: CN101804925A
Application number: CN201010002853A
Authority: CN
Inventors: 堀哲也; 桥本欣三
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2009-02-18
Filing date: 2010-01-21
Publication date: 2010-08-18
Anticipated expiration: 2030-01-21
Also published as: EP2221265A3; KR101335495B1; CN101804925B; EP2221265A2; KR20100094328A; JP2010189127A; EP2221265B1; JP5236519B2

Abstract

The present invention provides a technique to prevent possible ribbon winding regardless of yarn type while inhibiting possible bulging. The winder 1 includes a contact roller 8 configured to come into contact with a package 4 during formation of the package 4, a traverse device 7 located upstream side of the contact roller 8 in the traveling direction of an elastic yarn 2, a free length varying means 9 for enabling the free length FL of the elastic yarn 2 located between the contact roller 8 and the traverse device 7 to be varied during formation of the package 4, and a control section 80 configured to control the free length varying means 9 in such a manner that the free length FL is increased during winding start of the package 4 and then reduced toward winding end.

Description

Yarn winding apparatus and reel for yarn winding method

Technical field

The present invention relates to Yarn winding apparatus and reel for yarn winding method.

Background technology

Make cross angle (winding angle) increase, relax the technology of the degree of tautness of this starting stage layer as being wound up on the mound bobbins technology that prevents so-called chimb when forming package by touch roll with the yarn that traverse gear is traversed, and in patent documentation 1, putting down in writing in the starting stage that begins to reel.And, in this patent documentation 1, also put down in writing in order to reach the purpose of avoid reeling overlapping (リボ Application), make cross angle reduce gradually to finish, in order to avoid winding number is less than 1 intention up to reeling.

[patent documentation 1] Japanese kokai publication hei 9-71367 communique

But, if adopt the technology of above-mentioned patent documentation 1, though no problem under the situation that the smaller chimb of degree takes place, can suppress this chimb, but under the situation that the bigger chimb of degree takes place, though want to suppress this chimb, in any case it is overlapping also all can to produce coiling.On the basis of the meaning that each term is described, illustrate in greater detail the problems referred to above below.

So-called chimb be because of reel for yarn around the phenomenon of median rise of the package end face that produces of accumulation.

So-called coiling is overlapping to be the phenomenon of yarn overlapping coiling on the same route of the side face of package.If it is overlapping to produce this coiling, can produce the hand pick that causes the package end face, cause touch roll vibrations, cause package in the subsequent handling separate the such variety of problems of Shu Buliang.In addition, for the above-mentioned Shu Buliang that separates, especially under the situation of elastomeric yarn, because yarn is stretched by the tangential direction along the package circumference, therefore the above-mentioned Shu Buliang of separating is easy to generate especially, and this is separated Shu Buliang and has and cause the danger of separating broken yarn when relaxing.

Winding number N is used for predicting the overlapping numerical value of the above-mentioned coiling of generation.Fig. 3 is the figure that is used for illustrating the definition of winding number.The developed surface of oblong shown in Figure 3 90 expression package side faces, on this developed surface with symbol a～d represent reel for yarn around the position.Wherein, symbol D is the winding diameter of package, and symbol S is a stroke, and symbol WA is cross angle (winding angle), and π DtanWA is the distance of whenever along the circumferential direction reeling and advancing on the package axis direction in a week on the package side face.In the example of Fig. 3, if represent the winding position that yarn is initial with symbol a, the winding position of the 2nd circle is symbol b so, is the position in the upper right corner that is turned to developed surface, and later winding position is symbol c and the symbol d that dots.Under the situation that winding position shown in Figure 3 is reeled, yarn is reeled on the same routes of the side face of package overlappingly at yarn, and it is overlapping promptly to have produced coiling.In order to analyze the overlapping generation of this coiling, used between 2 stroke 2 * S, the turned back winding number N of following formula (1) of how many times of expression yarn.By following formula (1), winding number N is 4 under the situation of Fig. 3.At such winding number N is integral value, and especially under the situation of N=1, local overlapping degree enlarges markedly between the yarn.Therefore winding number during generally with this N=1 is called dangerous winding number Nd, reels overlappingly in order to prevent to produce, and generally makes the winding number N winding number Nd that averts danger.

(formula 1)

N = \frac{2 S}{π D \tan WA} . . . (1)

The explanation of each term illustrates the improvement to problem of patent documentation 1 as mentioned above below with reference to Fig. 1 and Fig. 2.Fig. 1 is used for illustrating the figure that suppresses the technology of chimb by the increase and decrease cross angle.Fig. 2 is the figure that is used for illustrating the new problem that produces under the situation that suppresses chimb by the increase and decrease cross angle.Among each figure, transverse axis is represented the winding diameter of package, and the longitudinal axis is represented cross angle.

The coiling of anti-chimb countermeasure is not taked in Fig. 1 (a) expression, disclosedly in Fig. 1 (b) expression patent documentation 1 has taked anti-chimb countermeasure to reel.Among the figure, the long and two-short dash line shown in " N=Nd " illustrates winding number N and the consistent condition of dangerous winding number Nd.Shown in (a1) among Fig. 1 (a), no matter the winding diameter D (following only be called " winding diameter D ") of package how, when reeling with certain cross angle WA, shown in (a2) among Fig. 1 (a), because reel for yarn is around accumulation, the end face median rise of package has promptly produced chimb.Therefore, increase cross angle WA in the starting stage that begins to reel (winding diameter D is little) like that shown in (b1) in the patent documentation 1 in the image pattern 1 (b), the layer density of this starting stage is reduced interimly.And,, reduce cross angle WA and make the line of cross angle WA not cross the long and two-short dash line of the overlapping generation condition of expression coiling at the later stage (winding diameter D is big) of reeling and finishing.If reel like this, shown in (b2) in the image pattern 1 (b) like that the density of layer because of reel for yarn around the density of the rising that causes of accumulation and layer along with the reduction that cross angle WA increase causes offsets, the result forms the package that has suppressed chimb.

But, in the coiling of yarn kinds such as for example elastomeric yarn,, therefore, produce than the more obvious chimb of chimb shown in Fig. 1 (a) (a2) because the power of tying tight of reeling is big.And, if so significant chimb is also want to suppress with the technology of above-mentioned patent documentation 1, then such shown in (c1) among Fig. 2 (c), in any case must further increase cross angle WA, the line of cross angle WA is crossed the long and two-short dash line of the overlapping generation condition of expression coiling as a result, it is overlapping to produce above-mentioned coiling, when be with figure in during the corresponding winding diameter D of the intersection point represented of symbol X, the end face that is created in package shown in (c2) among Fig. 2 (c) like that produces problems such as hand pick or the above-mentioned Shu Buliang of separating.So, in the technology of above-mentioned patent documentation 1, promptly allow to suppress chimb,, also be difficult to avoid the overlapping generation of reeling sometimes because of the difference of yarn variety.

Summary of the invention

The present invention makes in view of the above problems, and its main purpose is will provide a kind of can suppress chimb and no matter be the yarn of what kind can both prevent from the to reel technology of overlapping generation.

The present invention wants the problem that solves as mentioned above, the present application person is the result of the in-depth study that carries out in order thoroughly to improve the technology that suppresses chimb, and is for example such shown in the symbol FL among (d1) among Fig. 2 (d): as to be conceived to the so-called drift of increase and decrease in the process that forms package.

The following describes the relation that drift and chimb suppress effect.Fig. 4 is the figure of expression drift with the relation of the hysteresis of traversing.Drift FL shown in Figure 4 (FL1, FL2) separates from traverse guide for the yarn that engage with the traverse guide of traverse gear and puts down, and arrives the drift with yarn till the side face of touch roll contacts.This drift FL can show like that by traverse guide being left or increasing and decreasing near touch roll by image pattern.And, when making this drift FL when FL1 is increased to FL2, if with the angle that is become between the direction of travel of the rectangular straight line of the axis direction of bobbin and the yarn of being reeled, be cross angle WA certain (WA=WA1), then the difference of the axis direction position of traverse guide on the actual side face that is carried on package of the position of axis direction and the yarn delay distance E that promptly traverses increases to E2 from E1.On the other hand, when drift FL when FL2 reduces to FL1, same, if cross angle WA is certain, the delay distance E that then traverses is reduced to E1 from E2.

Specify this point with Fig. 4 below.At first, when hypothesis cross angle WA is WA1, drift FL when being FL1, yarn is carried on the touch roll at the position of axis direction N1.The delay distance E that traverses of this moment is E1.That is, even traverse guide has arrived the end of the scope of traversing, in fact yarn is winding in the package on the position of the amount of the delay distance E1 that traverses near the central authorities of axis direction.Equally, when supposing that cross angle WA still is FL2 for WA1, drift FL, the above-mentioned delay distance E that traverses has become E2.Therefore, when making drift FL when FL1 is increased to FL2, the end face of package is formed near symbol Δ E among the figure of axis direction central authorities (on the position of=E2-E1) amount.On the other hand, same when making drift FL when FL2 reduces to FL1, the end face of package is formed on the position near the amount of the end Δ E of axis direction.That is, say straight from the shoulder that when increasing drift FL, the coiling width of package reduces, otherwise when reducing drift FL, the coiling width of package increases.

So the present invention is the technology that looks like to suppress as shown in Figure 5 chimb by the technical continuous action relation of the coiling width that adopts this drift FL and package.Fig. 5 is used for illustrating the figure that utilizes drift to suppress the reason of chimb.It is a timer-operated coiling that Fig. 5 (a) expression makes drift, Fig. 5

(b) expression makes drift from the FL1 → FL2 → FL1 (coiling of FL1＜when FL2) changing like this wherein.Promptly, disclosed technology in not adopting above-mentioned patent documentation 1 (increase and decrease cross angle WA) and making under the situation that drift FL necessarily implements to reel, suppose not have reel for yarn around the coiling that causes of the accumulation power of tying tight, then shown in the left figure of Fig. 5 (a), begin to finish to reeling from coiling, the coiling width is certain, and in fact reel for yarn around the coiling that causes of accumulation tie tight and make the median rise of package both ends of the surface shown in the right figure of power image pattern 5 (a) like that, promptly produce chimb.And under the situation that drift FL is changed like this from FL1 → FL2 → FL1, suppose not have reel for yarn around the coiling that causes of the accumulation power of tying tight, then shown in the left figure in the image pattern 5 (b) like that from reeling, the coiling width diminishes gradually, when final drift FL becomes FL2, the coiling width is than the amount of the little Δ E of coiling width * 2 of the beginning of reeling, arriving then reels finishes, it is big that the coiling width becomes gradually, final when drift FL becomes original FL1, the coiling width of coiling width when coiling began originally is consistent.Say that straight from the shoulder the cross sectional shape of package is a cydariform.Therefore, in fact reel for yarn around the coiling that causes of accumulation tie tight the depression in the middle of the package both ends of the surface disappeared, i.e. the end face of package becomes smooth.

Say straight from the shoulder, above-mentioned technology for by the cross sectional shape that makes package be cydariform ground increase and decrease coiling width offset reel for yarn around the technology of the chimb that causes of the coiling power of tying tight of accumulation generation.In other words, for suppress the technology of chimb by increase and decrease drift FL.

What above-mentioned Technology Need was noted is that increase and decrease drift FL does not cause winding number N and produces undesirable variation.From recognizing the preceence of above-mentioned technology here with respect to above-mentioned patent documentation 1.

The technical purpose of the present application the following describes the measure and the effect thereof that are used for addressing the above problem as mentioned above.

According to first scheme of the present application, the Yarn winding apparatus that forms package adopts following structure.It is that Yarn winding apparatus has: the touch roll that in the process that forms package, contacts with above-mentioned package; Be configured in the traverse gear of upstream one side of yarn direction of travel with respect to above-mentioned touch roll; In the process of above-mentioned formation package, the drift that can change the drift of the above-mentioned yarn between above-mentioned touch roll and above-mentioned traverse gear changes the unit; And make above-mentioned drift increase, finish up to reeling then to make above-mentioned drift to reduce the control unit that the ground above-mentioned drift of control changes the unit in the coiling incipient stage of above-mentioned package.If the employing said structure can suppress chimb.And,, avoid the coiling of dangerous winding number when therefore can easily realize suppressing chimb because the increase and decrease of above-mentioned drift can not cause the variation of winding number.In addition, if can avoid dangerous winding number, just can avoid causing the hand pick of package end face or bring out the vibrations of touch roll or cause package in the aftermentioned operation separate the such variety of problems of Shu Buliang.

In addition, it is also conceivable that the certain situation of such cross angle that the dotted line among (d1) of image pattern 2 (d) is represented, the perhaps the same situation that makes the cross angle increase and decrease etc. with drift.

Above-mentioned Yarn winding apparatus can also adopt following structure.That is, Yarn winding apparatus also has the cross angle change unit that can change cross angle; Above-mentioned control unit increases above-mentioned cross angle in the coiling incipient stage of above-mentioned package, finishes to make above-mentioned cross angle to control above-mentioned cross angle then up to reeling with reducing and changes the unit.If when suppressing chimb, adopt the technology of above-mentioned drift of increase and decrease and the above-mentioned cross angle of increase and decrease so simultaneously, then can reduce to be used for to suppress the increase and decrease amplitude of the drift of chimb, therefore can make above-mentioned drift change block construction and constitute compactly.

If adopt the alternative plan of the present application, form the reel for yarn of package around carrying out by the following method with touch roll and traverse gear, described touch roll contacts with package in the process that forms package, and described traverse gear is configured in upstream one side of yarn direction of travel with respect to above-mentioned touch roll; It is characterized in that, make the drift of the above-mentioned yarn between above-mentioned touch roll and above-mentioned traverse gear increase, finish up to reeling then the drift of above-mentioned yarn is reduced in the coiling incipient stage of above-mentioned package.If the employing said structure can suppress chimb.And, because can not causing winding number, the increase and decrease of above-mentioned drift do not change, avoid the coiling of dangerous winding number when therefore can easily realize suppressing chimb.In addition, if can avoid dangerous winding number, just can avoid causing the hand pick of package end face or bring out the vibrations of touch roll or cause package in the aftermentioned operation separate the such variety of problems of Shu Buliang.

The coiling of above-mentioned yarn also carries out by the following method.Promptly make cross angle increase, finish cross angle is reduced up to reeling then in the coiling incipient stage of above-mentioned package.If when suppressing chimb, adopt the technology of above-mentioned drift of increase and decrease and the above-mentioned cross angle of increase and decrease simultaneously like this, then can reduce to be used for to suppress the increase and decrease amplitude of the drift of chimb.

And, be under the situation of elastomeric yarn at above-mentioned yarn, because the power of tying tight of reeling is big, therefore produce tangible chimb as described above.If only want to deal with this tangible chimb by the increase and decrease cross angle, it is overlapping then can not to avoid reeling, but deals with by the increase and decrease drift, and it is overlapping just can to avoid reeling.So, the technology that suppresses chimb by the increase and decrease drift is especially useful under the situation of elastomeric yarn at above-mentioned yarn.

Description of drawings

Fig. 1 is used for illustrating the figure that suppresses the technology of chimb by the increase and decrease cross angle; Fig. 1 (a) expression produces the state of chimb, and Fig. 1 (b) is for suppressing the technology of the patent documentation 1 of chimb by the increase and decrease cross angle;

Fig. 2 is used for illustrating the figure that suppresses the problem points of the stylish generation of chimb by the increase and decrease cross angle; Fig. 2 (c) expression suppresses chimb by the increase and decrease cross angle but produces the situation of the overlapping interference of reeling, and Fig. 2 (d) expression suppresses chimb and do not produce the situation of the overlapping interference of reeling by the increase and decrease drift;

Fig. 3 is the figure that is used for illustrating the definition of winding number;

Fig. 4 is the figure of expression drift with the relation of the delay distance that traverses;

Fig. 5 is used for illustrating the figure that utilizes drift to suppress the reason of chimb; Fig. 5 (a) is the solid timer-operated situation of drift, and Fig. 5 (b) is the situation of drift FL when FL1 → FL2 → FL1 changes like this, wherein FL1＜FL2;

Fig. 6 is the front view of winder of first example of the present application;

Fig. 7 is the system diagram of winder;

Fig. 8 is the diagram of curves of expression based on the content of the winding diameter control drift of package;

Fig. 9 is the diagram of circuit of control program;

Figure 10 (a)～(c) is the action diagram of winder;

Figure 11 is the diagram of curves of the relation of the height and position of expression coiling time of package and slip case;

Figure 12 is used for confirming the diagram of curves of experimental result of experiment of the technique effect of the present application for expression;

Figure 13 is the figure that is similar to Fig. 8, for control the diagram of curves of the content of drift and cross angle in second example of expression the present application based on the winding diameter of package;

Figure 14 is the figure that is similar to Fig. 9, is the diagram of circuit of second example of the present application.

The specific embodiment

Winder 1 as the Yarn winding apparatus of the present application first example is described below with reference to the accompanying drawings.Fig. 6 is the front view of the winder of the present application first example.Fig. 7 is the system diagram of winder.

Winder 1 will be for being wound up into the Yarn winding apparatus that forms package 4 (with reference to Figure 10) on the bobbin 3 as the elastomeric yarn 2 of yarn.In addition, though following Yarn winding apparatus with regard to the elastomeric yarn 2 of reeling describes, the present application is not limited thereto, and also can be the Yarn winding apparatus of other yarn kind yarns of reeling.As shown in Figure 6, winder 1 has body frame 5, rotating disk 6, slip case 16, traverse gear 7, touch roll 8, drift change unit 9.As shown in Figure 7, each structure of winder 1 and control unit 80 (control setup) are electrically connected.Control unit 80 has CPU (the Central Processing Unit as arithmetic processing apparatus, central process unit), store ROM (the Read Only Menory of employed data in control program that CPU carries out and the control program, read-only memory (ROM)), be used for when executive routine, preserving the RAM (Random Access Memory, random access memory) of data temporarily.And, read among the CPU and on CPU and carry out by being stored in above-mentioned control program among the ROM, control program makes hardware such as CPU work to be used for controlling drift to change the unit of unit 9 or be used for controlling the unit that cross angle described later changes the unit.

As shown in Figure 6, rotating disk 6 be arranged on the body frame 5, can be under the driving of diagram abridged rotating driving device be the center rotation with S. A. 11.On the position about S. A. 11 symmetries of rotating disk 6, prominent 2 seat of reel 12 that bobbin 3 is housed of establishing.So, be rotated under the driving of above-mentioned rotating driving device by rotating disk 6, can change the bobbin 3 that is positioned at the top winding position.As shown in Figure 7,2 seat of reel 12 that are arranged on the rotating disk 6 are connected on the driving motor 27, by driving motor 27 driven in rotation.Each driving motor 27 is electrically connected with control unit 80, and therefore, the driving of control unit 80 by controlling and driving electrical motor 27 be the rotative speed of application cylinder base 12 freely.And above-mentioned seat of reel 12 is provided with seat of reel rotation sensor 35, and this seat of reel rotation sensor 35 is electrically connected with control unit 80.This seat of reel rotation sensor 35 detects the rotative speed of seat of reel 12, and detection signal is sent to control unit 80.Therefore, control unit 80 receives above-mentioned detection signal from seat of reel rotation sensor 35, can obtain the rotative speed of seat of reel 12 according to this detection signal.

As shown in Figure 6, slip case 16 is moved freely on this direction by the above-below direction guiding of the pair of

guide rails

17,17 that is arranged on slip case 16 two ends along body frame 5.When this slip case 16 rose, the traverse gear 7 of stationkeeping on slip case 16 left touch roll 8, and when slip case 16 descended, traverse gear 7 was near touch roll 8.This slip case 16 changes in above-mentioned drift under the effect of unit 9 by lifting.

The device of traverse gear 7 for elastomeric yarn 2 is traversed, stationkeeping is on slip case 16.Traverse gear 7 is for to make the journey of traversing be fixed on the device of certain width, has traverse cam 30, traverse guide 31, electrical motor 28 (with reference to Fig. 7) traverses.Traverse cam 30 rotations freely are supported in the slip case 16, and side face is provided with spiral-shaped traverse cam groove.Drive by traverse cam 30 rotations, traverse guide 31 moves along the traverse cam groove, along the axis direction crank motion of traverse cam 30.This traverse guide 31 is while the elastomeric yarn 2 in the walking is swung its guiding to touch roll 8.Traverse electrical motor 28 for rotation drives the device of traverse cam 30, be electrically connected with control unit 80, therefore, control unit 80 can freely be controlled the rotative speed of traverse cam 30 by the traverse driving of electrical motor 28 of control.In addition, owing to the rotative speed decision of above-mentioned cross angle WA by traverse cam 30, therefore in this sense, control unit 80 can freely be controlled cross angle WA by the rotative speed of control traverse cam 30.The structure that above-mentioned cross angle changes the unit comprises traverse cam 30 and as the electrical motor 28 that traverses of the drive source of this traverse cam 30.

Touch roll 8 is configured in downstream one side of elastomeric yarn 2 direction of travel of traverse gear 7.Touch roll 8 is for being driven in package 4 rotations, being undertaken on the elastomeric yarn 2 that is traversed under the effect of traverse gear 7 in the process that forms package 4, elastomeric yarn 2 is handed to the device on the side face of package 4.Touch roll 8 rotations freely are bearing in the 1st end 13a one side of arm 13.The 2nd end 13b break-through of arm 13 is bearing in the slide bar 14 on the slip case 16, with respect to slip case 16 free sliding along the vertical direction.That is, touch roll 8 adopts by arm 13 with respect to slip case 16 structure of free sliding along the vertical direction.Touch roll 8 is provided with the rotation sensor 40 of the rotative speed that detects touch roll 8.This rotation sensor 40 is electrically connected on control unit 80, detects the rotative speed of the touch roll 8 that is driven in package 4 rotations, and detection signal is sent to control unit 80.Therefore, control unit 80 receptions can be obtained the rotative speed of touch roll 8 according to this detection signal thus from the detection signal of rotation sensor 40.In addition, for the speed of travel with elastomeric yarn 2 maintains certain value, promptly, certain for making the rotative speed of touch roll 8 or circumferential velocity, control unit 80 suitable controlling and driving electrical motors 27.

Drift changes unit 9 for make 16 liftings of slip case in the process that forms package 4, the device that the drift FL (with reference to Figure 10) of the elastomeric yarn 2 between touch roll 8 and traverse gear 7 can be changed.The structure that drift changes unit 9 comprises ball screw framework 15, position-detection sensor 18 and cylinder 19.Wherein, so-called drift FL is meant that the elastomeric yarn 2 that engages with the traverse guide 31 of traverse gear 7 is separated from traverse guide 31 and puts down, to the drift of elastomeric yarn 2 till the side face of touch roll 8 contacts.

Ball screw framework 15 is made of wire lever 20, ball nut 21 and lifting driver element 22 for being used to make the drive source of slip case 16 liftings.Wire lever 20 freely is being supported with respect to 5 rotations of body frame along the above-below direction configuration of body frame 5.Ball nut 21 is for being screwed on the wire lever 20, and with respect to slip case 16 part of engaging upwards.Lifting driver element 22 when lifting driver element 22 makes wire lever 20 positive and negative rotations, makes slip case 16 liftings by ball nut 21 for the parts of rotation driving wire lever 20.This lifting driver element 22 is made of electrical motor the 23, the 1st gear 24, driving band 25 and the 2nd gear 26.The 1st gear 24 is connected on the electrical motor 23, and driving band 25 surrounds between the 1st gear 24 and the 2nd gear 26, and wire lever 20 is connected on the 2nd gear 26.When the driving motor 23, the rotary driving force of electrical motor 23 passes to wire lever 20 by the 1st gear 24, driving band 25 and the 2nd gear 26 by this structure, makes wire lever 20 rotations.As shown in Figure 7, above-mentioned electrical motor 23 is electrically connected with control unit 80, and thus, control unit 80 can control motor 23.Therefore, control unit 80 can make slip case 16 lifting freely by control motor 23.

Position-detection sensor 18 is the device with respect to the rotation of above-mentioned the 2nd gear 26 opposite disposed, detection the 2nd gear 26 every predetermined angulars.This position-detection sensor 18 is electrically connected with control unit 80, when detecting the rotation of every predetermined angular of the 2nd gear 26, detection signal is sent to control unit 80 at every turn.Therefore, control unit 80 can obtain the height and position of slip case 16 according to the revolution from the detection signal of position-detection sensor 18 that receives, and then obtains the height and position of the traverse gear 7 that is supported on the slip case 16.

Cylinder 19 is born a greater part of, the device that makes above-mentioned lifting driver element 22 with small driving force 16 liftings of slip case be used of the weight of slip case 16 for utilizing cylinder pressure.In addition, the cylinder pressure of cylinder 19 is adjusted by air feed unit 36.

So, change the position-detection sensor 18 that unit 9 has the height and position that detects traverse gear 7 by drift, winder 1 can be on one side suitably the testing result of feedback position detecting sensor 18 on one side precision control the height and position of traverse gear 7 well, and then control above-mentioned drift FL.

Fig. 8 is the diagram of curves of expression according to the content of the winding diameter control drift of package.Transverse axis is represented the winding diameter D of package 4, and the longitudinal axis is represented drift FL.Form with for example form among the ROM of above-mentioned control unit 80 stores the winding diameter D of package shown in Figure 8 and the corresponding relation FL=f (D) of drift FL.This corresponding relation FL=f (D) begins to reel in package 4 specifically as shown in Figure 8---be winding diameter D from D1 to D2 during, drift FL is along with the increase of winding diameter D sharply is increased to FL2 from FL1; Then up to reel finishing---be winding diameter D from D2 to D3 during, drift FL is along with the increase of winding diameter D reduces to FL1 from FL2 gradually.Make drift FL sharply increase, finish drift FL is reduced gradually in the stage that package 4 begins to reel as described above up to reeling---in other words (D2-D1's)＜(D3-D2) the reasons are as follows.That is,, the layer that begins to reel is compressed such relation hardly owing to being compressed the layer that finishes of reeling by brute force.

The action of winder 1 is described below with reference to Fig. 8～Figure 10.Fig. 9 is the diagram of circuit of control program.Figure 10 is the action diagram of winder.In addition, this example is different with above-mentioned patent documentation 1, does not adopt increase and decrease to be used for suppressing the method for the cross angle WA of chimb.

When beginning the coiling of elastomeric yarn 2 like that shown in the image pattern 10 (a) under the state that drift FL is set at FL1, control unit 80 at first calculates the winding diameter D (S300) of current package 4.Be specially, control unit 80 is according to receiving the rotative speed that the detection signal that comes obtains touch roll 8 from rotation sensor 40, according to receiving the rotative speed that the detection signal that comes obtains seat of reel 12 from seat of reel rotation sensor 35.Then, control unit 80 calculates the winding diameter D of current package 4 according to the rotative speed of the rotative speed of touch roll 8, seat of reel 12 and the diameter that is stored in the touch roll 8 among the ROM in advance.

Then, control unit 80 calculates the increment Delta D (S310) of the winding diameter D of package 4.Be specially, control unit 80 calculates winding diameter D poor of the package 4 of calculating among the winding diameter D in the past of calculating among the last above-mentioned S300 and the current above-mentioned S300, the increment Delta D of the winding diameter D by calculating package 4 like this.

Then, control unit 80 calculate the picture as shown in Figure 8 with the corresponding drift FL of winding diameter D (S320).Be specially, control unit 80 is stored in corresponding relation FL=f (D) (with reference to Fig. 8) among the ROM according to the winding diameter D that calculates among the above-mentioned S300 with tabulated form, calculates as shown in Figure 8 and the corresponding drift FL of winding diameter D.

Then, control unit 80 calculates the variation delta FL (S330) of drift FL.Be specially, control unit 80 calculates the poor of the drift FL that calculates among the drift FL in the past of calculating among the previous above-mentioned S320 and the current above-mentioned S320, by calculating the variation delta FL of drift FL like this.In addition, from Fig. 8, winding diameter D from D1 to D2 during in, variation delta FL be on the occasion of.And winding diameter D from D2 to D3 during in, variation delta FL is a negative value.

Control unit 80 calculates the amount of movement Δ G (S340) of slip case 16 then.Be specially, control unit 80 is according to variation delta FL and the following formula (2) of the drift FL that calculates among the increment Delta D of the winding diameter D of the package 4 of calculating among the above-mentioned S310 and the above-mentioned S330, calculates the amount of movement Δ G (wherein with body frame 5 upward to being positive dirction) of slip case 16.In addition, the situation when the Δ FL in the following formula (2) also has as described above for negative value, if the absolute value of variation delta FL surpasses increment Delta D, then this moment, amount of movement Δ G was a negative value.

Formula (2)

ΔG＝ΔD+ΔFL…………(2)

Then, control unit 80 makes slip case 16 move (S350) along the vertical direction according to the amount of movement Δ G that calculates among the above-mentioned S340.Be specially, the driving at control unit 80 control motors 23 makes 16 liftings of slip case, has changed the amount of amount of movement Δ G until the height and position of the slip case of obtaining according to the detection signal that comes from position-detection sensor 18 receptions 16.

Control unit 80 judges whether the winding diameter D of the package 4 of calculating among the above-mentioned S300 has arrived predetermined winding diameter Dmax (S360) then, when being judged to be winding diameter D when not reaching predetermined winding diameter Dmax (being "No" among the S360), return and handle S300.On the other hand,, make rotating disk 6 rotations carry out bobbin change, begin new coiling when being judged to be winding diameter D when reaching predetermined winding diameter Dmax (being "Yes" among the S360).

By above-mentioned a series of control, realize the action of winder 1 shown in Figure 10.That is, under corresponding relation FL=f (D) shown in Figure 8, as shown in Figure 10 winding diameter D from D1 to D2 during in, make drift FL be increased to FL2 gradually from FL1; Winding diameter D from D2 to D3 during in, make drift FL be reduced to FL1 gradually from FL2.

And, by above-mentioned a series of control, shown in the solid line in slip case 16 image patterns 11 like that by lifting.The diagram of curves of the relation between the time that Figure 11 reels for the expression package and the height and position of slip case.Transverse axis is represented time of reeling, the longitudinal axis represent the to slide height and position of case 16.Among Figure 11, solid line is represented the form that the height and position of the slip case 16 of this example changes, the form that slip case 16 height and positions when long and two-short dash line is represented to make drift FL be certain value change.All of long and two-short dash line tilt to the upper right side, even be because upwards lifting touch roll 8 for package 4 chaps also maintains certain-length with drift FL and slip case 16 is risen, thereby have offset the cause of recruitment Δ D of the winding diameter D of package 4.Shown in solid line among the figure, the slip case 16 of this example for the winding diameter D of package 4 from D2 to D3 during in make the absolute value of variation delta FL surpass recruitment Δ D, making the amount of movement Δ G of slip case 16 is negative value, the case 16 that therefore slides descends.

The action of winder 1 more than has been described.Owing to implemented to be used for to confirm the experiment of effect of inhibition chimb of the winder 1 of this example, therefore reported this result of experiment below.

(experiment condition)

Use raw yarn: 44 fens Tekes (dtex) of spandex yarn.

Cross angle WA: the incipient stage of reeling is 12 ° (deg), and the coiling ending phase is 10 ° (deg).Because when making cross angle WA is a timing, has arrived winding number N and the consistent condition of dangerous winding number Nd in the final stage of reeling, and therefore in the final stage of reeling cross angle WA is reduced a little.In addition, this cross angle WA's reduces that it doesn't matter with suppressing chimb.

Drift FL: shown in the long and two-short dash line among Figure 12.

Figure 12 is used for confirming the diagram of curves of the experimental result of the experiment that the technique effect of the present application carries out for expression.Transverse axis is the winding diameter D of package 4, and the longitudinal axis is represented package end face and drift FL.Long and two-short dash line is represented the corresponding relation FL=f (D) that adopts in the above-mentioned experiment among Figure 12.Heavy line represents to have increased and decreased according to above-mentioned corresponding relation FL=f (D) embodiment of drift FL among Figure 12, and fine line represents to make the comparative example of drift FL for certain (minimum) value.The left side longitudinal axis is benchmark (initial point) with the end face of bobbin 3.Among Figure 12, the axis direction of bobbin 3 is consistent with the above-below direction of drawing, and the radial direction of bobbin 3 is consistent with the left and right directions of drawing.

Can judge according to above-mentioned Figure 12: if increase drift FL, reduce drift FL up to the coiling ending phase then, then can fully suppress chimb in the coiling incipient stage of package 4.In addition, no matter be, all do not find the sign of any hand pick at the end face of the package 4 of embodiment or at the end face of the package 4 of comparative example.

(summary)

(claim 1, claim 3)

Mistake as described above like that, the winder 1 that forms package 4 in the above-mentioned example adopts following structure.It is that winder 1 has: the touch roll 8 that in the process that forms package 4, contacts with package 4; Be configured in the traverse gear 7 of upstream one side of elastomeric yarn 2 direction of travel with respect to touch roll 8; In the process that forms package 4, the drift that can change the drift FL that is positioned at the elastomeric yarn 2 between touch roll 8 and the traverse gear 7 (being traverse guide 31 in detail) changes unit 9; And in the coiling incipient stage of package 4 drift FL increased, make drift FL reduce the control unit 80 that ground control drift changes unit 9 up to the coiling ending phase then.If the employing said structure can suppress chimb.And,, therefore can easily realize the coiling that not only suppresses chimb but also avoided dangerous winding number Nd because the increase and decrease of above-mentioned drift FL can not cause the variation of winding number N.In addition, if can avoid dangerous winding number Nd, just can avoid causing the hand pick of package end face or the such variety of problems of Shu Buliang is separated in the package 4 bringing out the vibrations of touch roll 8 or cause the aftermentioned operation.

In addition, though in above-mentioned example, there is not to be used for to suppress the increase and decrease of the cross angle WA of chimb, also can adopt the increase and decrease of this cross angle WA simultaneously.And, if make cross angle WA certain, in any case then under the final stage winding number N that reel the to finish situation consistent, also can in the final stage of coiling end cross angle WA be reduced a little as above-mentioned affirmation experiment with dangerous winding number Nd.

And,, also not necessarily to get back to FL1 though after drift FL picture is increased to FL2 from FL1 as shown in Figure 8, return the increase and decrease of FL1 ground.But, for the right figure of the coiling width image pattern 5 (b) that makes package 4 like that no matter the winding diameter D of package 4 much all be certain value, after making preferably that drift FL is first and being increased to FL2, return FL1 ground and increase and decrease from FL1.

And, though in the above-mentioned example according to winding diameter D, promptly use corresponding relation FL=f (D) to set the increase and decrease of drift FL, also can replace, according to the time t that reels, promptly use the form of FL=f (t) to set the increase and decrease of drift FL.

And, preferably suitably increase and decrease the corresponding winding diameter D2 of point of transition of the increase and decrease of package 4 and drift FL shown in Figure 8 according to the coiling condition of yarn.

(claim 5)

And, in the above-mentioned example elastomeric yarn 2 is wound up on the bobbin 3.That is, be under the situation of elastomeric yarn 2 at yarn, because the power of tying tight of reeling is big, therefore produce tangible chimb as described above.If only deal with this tangible chimb by increase and decrease cross angle WA, it is overlapping to avoid reeling, but deals with by increase and decrease drift FL, and it is overlapping to avoid reeling.So, the technology that suppresses chimb by increase and decrease drift FL is especially useful under the situation of elastomeric yarn 2 at above-mentioned yarn.

Second example of the present application is described according to Figure 13 and Figure 14 below.Here the difference with this example and above-mentioned first example is that the center describes, and suitably forgets for the explanation that repeats.

Figure 13 is the figure that is similar to Fig. 8, for control the diagram of curves of the content of drift and cross angle in second example of expression the present application according to the winding diameter of package.Transverse axis is represented the winding diameter D of package 4, and the longitudinal axis is represented drift FL and cross angle WA.In above-mentioned first example as shown in Figure 8 the winding diameter D of package 4 and the corresponding relation FL=f (D) of drift FL be stored among the ROM of above-mentioned control unit 80.But as shown in Figure 13 the winding diameter D of package 4 and the other corresponding relation FL=g (D) of drift FL is stored among the ROM of above-mentioned control unit 80 with the form of form in this example.The corresponding relation FL=f (D) of above-mentioned first example is with the difference of the corresponding relation FL=g (D) of this example, the former drift FL between FL1 and FL2 repeatedly, and among the latter drift FL FL1 and FL3 (wherein, between FL1＜FL3＜FL2) repeatedly.Say that straight from the shoulder the corresponding relation FL=g (D) of this example compares with the corresponding relation FL=f (D) of above-mentioned first example, the increase and decrease amplitude of drift FL is little.

And, in this example in the ROM of above-mentioned control unit 80 except the corresponding relation FL=g (D) of the winding diameter D that stores package shown in Figure 13 4 and drift FL, also stored the winding diameter D of package shown in Figure 13 4 and the corresponding relation WA=h (D) of cross angle WA with the form of form equally.Specifically as shown in Figure 13, this corresponding relation WA=h (D) begins to reel in package 4, be winding diameter D from D1 to D2 during in, cross angle WA is along with the increase of winding diameter D is increased to WA2 from WA1, on the other hand, reel in package 4 finish, be winding diameter D from D2 to D3 during in, in order to make winding number N not consistent, make cross angle WA along with the increase of winding diameter D reduces to WA1 from WA2 with dangerous winding number Nd.

The action of the winder 1 of this example is described below with reference to Figure 10 and Figure 13, Figure 14.Figure 14 is the diagram of circuit of the present application second example for similarly to scheme with Fig. 9.In addition, this example as shown in figure 13, the same increase and decrease that is used for suppressing the cross angle WA of chimb with above-mentioned patent documentation 1.

When beginning the coiling of elastomeric yarn 2 like that shown in the image pattern 10 (a) under the state that drift FL is set at FL1, control unit 80 at first calculates the winding diameter D (S300) of current package 4.

Then, control unit 80 calculates the increment Delta D (S310) of the winding diameter D of package 4.

Then, control unit 80 calculate as shown in Figure 13 with the corresponding drift FL of winding diameter D (S320).Be specially, control unit 80 according to the winding diameter D that calculates among the above-mentioned S300 and with tabulated form be stored in corresponding relation FL=g (D) (with reference to Figure 13) among the ROM calculate as shown in Figure 13 with the corresponding drift FL of winding diameter D.

Then, control unit 80 calculates the variation delta FL (S330) of drift FL.

Then, control unit 80 calculates the amount of movement Δ G (S340) of slip case 16.

Then, control unit 80 makes slip case 16 move (S350) along the vertical direction according to the amount of movement Δ G that calculates among the above-mentioned S340.

Then, control unit 80 calculate as shown in Figure 13 with the corresponding cross angle WA of winding diameter D (S360).Be specially, control unit 80 according to the winding diameter D that calculates among the above-mentioned S300 and with tabulated form be stored in corresponding relation WA=h (D) (with reference to Figure 13) among the ROM calculate as shown in Figure 13 with the corresponding cross angle WA of winding diameter D.

Then, control unit 80 changes over current cross angle WA the cross angle WA (S370) that calculates among the above-mentioned S360.Be specially, control unit 80 is according to receiving the rotative speed that the detection signal that comes obtains touch roll 8 from rotation sensor 40.And, control unit 80 according to the rotative speed of this touch roll 8, be the traverse driving of electrical motor 28 of the circumferential velocity control of package 4, increase and decrease the rotative speed of traverse cam 30, so that current cross angle WA reaches the cross angle WA that calculates among the above-mentioned S360.

Then, control unit 80 judges whether the winding diameter D of the package 4 of calculating among the above-mentioned S300 has arrived predetermined winding diameter Dmax (S380), when being judged to be winding diameter D when also not reaching predetermined winding diameter Dmax (being "No" among the S380), return and handle S300.On the other hand,, make rotating disk 6 rotations carry out bobbin change, begin new coiling when being judged to be winding diameter D when having arrived predetermined winding diameter Dmax (being "Yes" among the S380).

(summary)

(claim 2, claim 4)

Mistake as described above like that, winder 1 also has following structure in this example.Be that winder 1 also has the cross angle change unit that can change cross angle WA.Control unit 80 increases cross angle WA in the stage that package 4 begins to reel, and finishes to make cross angle WA to control cross angle then up to reeling with reducing and changes the unit.If use the technology of increase and decrease drift FL and increase and decrease cross angle WA like this during chimb simultaneously in control, can reduce to be used for to suppress the increase and decrease amplitude of the drift FL of chimb, therefore can make drift change 9 compact conformation ground, unit formation.

And, if will by change traverse situation that journey changes the coiling width with as above-mentioned example, make the Cheng Yiding that traverses, by changing the words that situation that drift FL and cross angle WA (speed of promptly traversing) change the coiling width compares, journey is always certain because the latter is traversed, even therefore the such yarn kind of elastomeric yarn also can successfully be reeled, and the crudy of end face might as well.

Though preferred example of the present invention more than has been described, above-mentioned example can change ground as following implements.

It all is the winding diameter D of package 4 point when being D2 that the above-mentioned second example picture makes the point of transition of the point of transition of drift FL increase and decrease and cross angle WA increase and decrease as shown in Figure 13.But also can replace, the point of transition of drift FL increase and decrease and the point of transition of cross angle WA increase and decrease are staggered on time shaft.

And above-mentioned second example cross angle WA as shown in Figure 13 all is WA1 in the reel zero hour and the finish time.But also can make the cross angle WA of the zero hour and the cross angle WA of the finish time is that different values replaces identical value.

Claims

1. Yarn winding apparatus that forms package is characterized in that having:

The touch roll that in the process that forms package, contacts with above-mentioned package;

Be configured in the traverse gear of upstream one side of yarn direction of travel with respect to above-mentioned touch roll;

In the process of above-mentioned formation package, the drift that can change the drift of the above-mentioned yarn between above-mentioned touch roll and above-mentioned traverse gear changes the unit; And

Make above-mentioned drift increase, finish up to reeling then to make above-mentioned drift to reduce the control unit that the ground above-mentioned drift of control changes the unit in the coiling incipient stage of above-mentioned package.

2. Yarn winding apparatus as claimed in claim 1 is characterized in that,

Also have the cross angle that can change cross angle and change the unit;

Above-mentioned control unit increases above-mentioned cross angle in the coiling incipient stage of above-mentioned package, finishes to make above-mentioned cross angle to control above-mentioned cross angle then up to reeling with reducing and changes the unit.

3. reel for yarn winding method that uses touch roll and traverse gear to form package, described touch roll contacts with package in the process that forms package, and described traverse gear is configured in upstream one side of yarn direction of travel with respect to above-mentioned touch roll; It is characterized in that,

Make the drift of the above-mentioned yarn between above-mentioned touch roll and above-mentioned traverse gear increase, finish up to reeling then the drift of above-mentioned yarn is reduced in the coiling incipient stage of above-mentioned package.

4. reel for yarn winding method as claimed in claim 3 is characterized in that,

Make cross angle increase, finish cross angle is reduced up to reeling then in the coiling incipient stage of above-mentioned package.

5. as claim 3 or 4 described reel for yarn winding methods, it is characterized in that,

Above-mentioned yarn is an elastomeric yarn.