DE2005610A1 - Spooling device with cross feed - Google Patents

Description

Spooling device with cross feed

The invention has for its object a winder with cross feed for textile technical purposes as well as a cross feed winding process to create that allow higher working speeds, the yarn packages produced also wound and more precisely to that extent, therefore, are perfected.

A package of yarn is usually made so that a thread is passed in a straight line in the transverse direction over the surface of a bobbin driven at constant peripheral speed, so that the thread runs up in spirally staggered turns or winding layers, the thread cross feed is and forwards guidance causes the rectilinear sliding movements is guided between guide surfaces and by an associated Nookemuichläufer is driven, the movement of which is driven by a ULL-LenkurventrommeL is granted. For the reverse speed of the reciprocating guidance is the curve stiffness of the control cam determining at the turning points. Sharp control curves result in a faster reversal of movement, but the guidance is

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running arrangements here an excessive, wear-causing Exposed to acceleration stress. The degree of steepness that comes into consideration when shaping a reversing cam groove is effective therefore, be restrictive. At high speed the back and forth As a result, the known cylindrical roller transverse feed devices work more slowly at the reversal points from the outset. Cross feed speeds of 600 or more work cycles per minute can be used for a typical thread cutting / flushing process and thread winding speeds of 1830 meters per minute may be required.

A yarn package which is produced with a cross-feed device operating at the reversal points at a lower speed has a larger amount of yarn at the two ends wound per unit of package length. So you get a pack or coil, the diameter of which is smaller in the middle parts and the share at the end has raised or bulged parts with a larger diameter. The jacked up ends are hard compared to the middle section, and this difference in hardness becomes even more pronounced when the packing is built up to a larger diameter, especially when the The winding process takes place in such a way that a reel is driven on its surface by a reel drive of known construction with edge drive. Fluctuations in the pack hardness are undesirable and it is known that this is a cause of banding when the packaged yarn is then processed into goods and dyed. Differences in hardness in a yarn package can also lead to tapering during the production of goods.

Another shortcoming of the known winding devices with cross feed is the relatively large drag length of the fadon. As "thread drag length" that free thread length is referred to, which extends from the point of contact with a transverse guide device or surface to the first Point of contact with a winding spool or the associated one Winding roller, for example a drive roller, moved forward. Since the thread dragging length is about a free-running thread length acts, unwanted vibrations and tensile stress

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Fluctuations in appearance, the greater the greater the greater is the tow length of the thread. Ideally, the length of the thread sole should be be as short as humanly possible.

Possibilities for accelerating the transverse guiding of a thread at the reversal points are given in the one given to R. Y. Hays U.S. Patent 3,059,874, issued to P. J. Chaussy U.S. Patent 3,089,657 and in US Pat U.S. Patent 3,097 BO5 to L.A. Oberly. The invention makes the task of handling a transverse thread at the reversal points still another, different one Solution supplied.

The invention has for its object a thread transverse guide device with a to-and-fro guide for producing the main span with a straight thread cross-pass and with synchronously driven, rotating guide parts for the cross feed reversal to accomplish.

Another object of the invention is a cross feed winding method to create, within the framework of an attack on one straight transverse thread is provided at the reversal points, so a regulated, steady decrease in towing length and at the same time to cause an accelerated lateral displacement of the thread.

Another object of the invention is to provide a packing to create, in which the thread is wound in spiral lines on a bobbin, which consists of essentially linear, diagonally extending lengths that are connected to each other at the ends of the pack by reversing curves. The Liehrzahl or most of the reversal curves are characterized by the fact that it are essentially curvature curves that are formed over projection distances of the diagonal lengths and are essentially each up to the intersection points appearing in the projection the latter extend.

For the winding device with cross feed and for the cross feed Flushing method is a transverse guide inadequate for transverse displacement A thread is provided, that of a driven bobbin

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is fed and wound onto this. The: Faden experiences one Cross feed at an essentially constant speed, the cross speed only at the reversal points is decreased. Between the points of initiation of the return movement of the thread on the one hand and the bobbin on the other hand are two Arranged control pins or guide parts that can perform circular movements in a plane that forms an angle with the plane of the transverse passages of the thread. Each of the two pens is arranged in the reversal area of the transverse thread and can in the case of circular movements with a greater relative speed are driven than the cross feed speed of the thread at the reversal point. You movements of each of the pens are so synchronized that they gently come into contact with the thread before the transversely guided thread reaches the outermost point of its stroke, whereupon the thread is given a sliding thrust in an arcuate arrangement with the application of a laterally and downwardly directed vectorial component. Through the The thrust effect accelerates the lateral movement of the thread and reinforced, the towing length shortened and in cooperation with the transverse guide device caused a reversal of movement of the thread. The pins are synchronously controlled in such a way that they release the thread after it has experienced a movement reversal by the transverse guide device and is now essentially in that predetermined trailing angle accrues which in the

W. reversed movement is provided.

The term "thread trailing angle" denotes the angle that is formed between the free tow length of the thread and a circumferential contact line of the thread on a rotating roller, when the thread is reciprocated in the transverse direction of the roll. In general, the rotating roller can be a Be a spool, a drive roller or a rocker roller, and this is in each case the first roller or roller of the winder with which contact occurs. Usually a thread a constant trailing angle in one transverse direction of movement and a similar one, albeit in opposite directions, but also constant draft angle in the opposite direction of the

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viuerclurohgangs have. On the reversing point bo, the thread-eye-lop-length writes a reverse curve, with dom aie aiu dor position dsji an angle of traction over the perpendicular or iibor ο ine traction angle from 90 ° to the position of the reversed, mui v / Lodar constant traction angle. The Fu lennaohzugwi nkoL OA and 01! are shown in Figures 5 and 12 respectively, attached drawings.

The yarn package produced in this way is extremely fine. b d> jr space borrowed symmetry and is in its nmtihanisichen Kigeuuchtif tone Hühr uniformly. The windings run Ln then (! Arnpüungen Ln Spiral lines with reversing curves, where aa aich Lm. '^ Taentlluhon um is curvature curves, which over the in the projection ortsohoinönd «n, imaginary sharp-edged switchbacks.

In the drawings show:

FIG. 1 shows a perspective view of the herbage winder according to the invention ml t transversely: johub, whereby Tolle broke away are;

Figure 2 shows an Oborannicht the Spulvorrich environment mi b (juervorschub;

Figureil 3 to 12 fioL benanoiohh ju, Ln d'jnon in uohomabifjLerber form an operation sequence of a: ila iJrfindungnbeatandheil provided, a circular motion executing SbLf te π illustrates is |

Figure 1} a development of several spiral (iuor-

passages of the on a bobbin, 'jowiok «l. tea Padensi being

the curvature »curve η» ezoigb are provided at the turning points and

Figures 14 to 16 transactions for Voranoohauung the different design of a reversal curve in the invention Winding or spooling a padon onto a spool.

Reference should first be made to Figures 1 and 2 of the drawings , in which a winding device embodying the invention is shown with transverse advance, to which a thread transverse guide device 2 known from sioh is driven by a motor 6.

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8AD ORIGINAL

honing cylindrical roller 4 giihiirb, which a ine a [) ira L shaped. _t fo t'iiti t'te iJtouerkurvenrilLe O cries. I) it) iJtoiierkurvenri He 8 serves ^ u ¹ tripping d!) R movement of a loekennauhl au far LO, dir ;; u einnn. <>! ! i tend u η ¹ A) TiJOlIiOh-JtI intervenes in the ütouorkurvonrl L Iu 0. ίίίιι Fndt; lführungnbi i. L 12 i.it inib the liockünniühliuf'or 10 verbund m and yt.il Lt uine iluorfiihrunij.'ivorrl oh tung, IL; LIi nii'HoL te zu (} lu j. Hbewtv.imgön in uinom Lün ^ sjiiuhLi tz led iu \. _F d.> R between each other <', <*) separated

i.'iühienen I4 provided Lut. The Ffidenfiihrungijtui I L2 has B'adonnohLL tz L6 and is in operation sswischon don j. <Uhrungu-Bchionen I4 back and forth.

Biino known ») Vorric: h tang LB .5Uin AufwickiLn, fipu lon W recording» ineη B'adene int below the transverse front hub position 2

arranged. To the winding device 10 includes a "by a motor 22 driven on engines; jro L Ie ':() and eino iJpule 2 \ that on rotational motion nuf In a" chemnti. fourth form shown Ll ton pivotable i3j> u lon carrier 26 gu Lugort L.'jt. The Reel "24 can you have raw angenähort the AntrieburoLLe L ¹ O 7ernohnronkon and ubgorückt again diuonr and Lies in uutri ^ b in aohaparal Lu lor Atujrioh processing in the buying triebero LLE on, With Ht ^ '. Iignzahl 2. [ . 'and riowohl den (Jarnpackung alö auoli der üpuLenkörpor eoLbot.

A thread 20 fed by the r (^ u «rvo rnohubeiiiriohtung 2

is guided through the thread lock $ 6 and is stretched so that it fits tightly around the lower side of the drive tube shown in Figure L. and the iipuLe 24 passes through 11. The drive roller 20 rotates in one direction and drives the sink 24 to an opposing rotary motion. If desired, a different type of tensioning can also be selected in which the thread 28 extends directly through the gap between the drive roller 20 and the winding reel 24, i.e. is not first guided around the drive roller 20.

Between the feed guide part 12 and the drive roller 20 two disks 30 and 32 which can be driven to rotate movements are provided. The tioheiben are closely spaced apart the Antriobarolle 20 arranged. With the front each is dieeer

009049/1226 BAD original

Slices facing the drive roller 20, while the drive of the Slices to counter sensible rotary movements from the rear one wool 34 or 36 takes place. In the viewing direction In FIG. 1, the disk 30 rotates counterclockwise, whereas the disk 32 rotates clockwise. The discs 30 and 32 are upright and with respect to the plane of the thread transverse passage arranged in an oppositely inclined position, so that their fronts face each other at an angle.

On, each of the disks 30 and 32 is a tenon or pin 38 or 40 is provided, which protrudes from the front. The pins 38 and 40 are each arranged and extend at a predetermined distance from the axis of rotation of the respective disk 3 looking essentially perpendicularly away from the front. The pencils : dnd preferably conical and can be used if desired be used rotatably. The disks 30 and 32 are arranged so that that the hatches 38 and 40 in their circular movement in a lateral direction guided beyond the reversal points of the thread guide nachlitzes 16 will.

The pins 3 ^ and 40 cooperate with the transverse feed device 2 and with the winding device 18 in the sense of the actuation wed described below. It is assumed that the thread 28 experiences a steep transverse feed through the thread guide 12 and moves back and forth under tension when running onto the bobbin 24, and that the disks 30 and 32 are driven in such a way that the pins 38 and 40 carry out a circular movement, the speed of which is to a predetermined extent higher than a selected linear movement speed during the transverse passage of the guide part 12 the transverse passage plane of the thread 28 forms an angle on the thread when the thread guide steep 12 is in a phase of reduced speed associated with the reversal of movement, either before or after the exact moment of the reversal of movement of the guide part β 12, depending on whether you want a lower or

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a higher ratio of the rotational speed of the pins 38 and 40 selects the number of actuation cycles of the thread guide part 12 carried out in a certain time. During the duration of the touch each of the pins 38 and 40 slidably engages with the thread in that the respective pin makes an arc of its circular motion describes, and exerts a laterally outward pressure, through which the thread over the outermost point of it through the reciprocating guide part 12 caused displacement movement is still out. Then the relevant der moves Pins 38 and 40 each again from the thread 28 at a point in time which essentially coincides with the moment in which

^ the thread guide part 12 his again after the movement has been reversed

has reached constant normal speed when running crosswise. The length of the normal thread transverse travel stroke caused by the thread guide part 12 is thus extended by the pins 38 and 40 or enlarged, without thereby changing the normal number of periods of the transverse passages of the thread triggered by the guide part 12 would, as the pins 38 and 40 offset the lateral movement of the Accelerate the thread at the reversal points. It should be emphasized that Changes in the placement of pins 38 and 40 on the washers 30 and 32, respectively, in the size of the pins 38 and 40, in the predetermined angular position of the disks 30 and 32, in the arrangement of the disks with respect to the thread winding roller or rollers and in the ratio of the work cycle sequence of the thread guide part to the

ψ running speed of the pins can be made so that

a variety of different operating options for the Task solution is available.

Reference is now made to FIGS. 3 to 12 and it is assumed that the transverse guide device 12 is one with the thread given in the viewing direction to the left leading transverse feed, with a shown in Figure 3, constant Naohzugwinkel 9A is maintained, and it is further assumed that si oh the thread now approaches the pin 38, which counteracts a circular movement clockwise. Thanks to the angular position of the disk 30, the thread moved near to the left is initially guided freely over the path of movement of the pin 3Θ and past it, like this

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is shown in FIG. Since the pin 38 rotates at high speed, it quickly catches up with the thread and now engages in its movement path in a touching manner (FIGS. 6 and 7) before the thread guide part 12 has reached the end of its stroke to the left in the viewing direction. The pin 38 now exerts a leftward, accelerating pressure on the thread 28 and causes the thread to run off as it moves in the direction of the drive roller 20 while forming an angle across the surface of the pin 38, as does this is shown in Figures 8 and 9. The thread guide part 12 reaches the extreme point of its leftward stroke and, after the reversal of movement (Figure 7), guides the thread section on which the pin also engages to the right in the viewing direction, while the pin 38 continues to press against the thread and follow it shifts left. By means of the pin 38, as it traverses the thread transversely over the drive roller 20, speed components in the sense of a horizontally directed to the left and a vertically downward displacement are brought to bear. The speed component in the sense of a downward displacement occurs because the thread below the pin 38 moves at an angle as a result of the defined trailing angle during the thread movement leading to the left in the viewing direction. The pin 38 then reaches a lower point of its circular movement path, now releases the thread due to its high rotational speed and is guided out of the thread transverse plane as a result of the angular position of the disk 30, as is illustrated in FIGS. At approximately the same point in time at which the pin 38 moves away from the thread 28 as shown in FIG. 10, the latter has essentially assumed a trailing angle ΘΒ provided for the return movement, shown in FIG. There is such an arrangement and movement synchronization of the pin 38 is provided that the pin releases the thread preferably at about the moment when the phase of reduced movement speed associated with the movement reversal of the thread guide part has ended and the thread guide part reaches the normal speed at the point near the right leading movement has achieved.

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It should be noted that the pin 38 for the duration of the thread contact brings about a progressive shortening of the towing length, since the pen describes an arc when touching the thread, whereby The length of the thread that extends from the point of contact with the pin 38 to the point of contact is to be considered here as the tow length with the roller 20 extends. This shortened towing length ensures better handling of the thread at the reversal points.

The displacement of the thread at the point of contact with the pin 58 can be as a circular displacement along a sinusoid or as a ^ Sinusoidal motion can be described. The speed of the

Displacement of the thread when the movement is reversed at the point of contact of the thread with the drive roller 20 as a result of the actuating action of the pins 38 and 40 is the sum of the laterally or horizontally geriohteten and the downward or vertical displacement component, which results from the interaction of the trailing angle (ΘΑ and OB) of the thread and the actuation of the pen in question.

In the context of the invention, high operating speeds and you get yarn packs of an outstandingly constant consistency. The difference in the Cross travel speed between the pins 38 and 40 on the one hand ^ and the thread guide part 12 on the other hand should be in a transverse

^ through stroke of 24I mm, preferably in the range from 6 to 15

Operating cycles or revolutions of the pin on each one operating cycle of the guide part 12, with a single forward and backward movement of the guide part 12 as an actuation cycle of this Partly be considered.

In a practical arrangement, a thread was wound at a winding speed of 2740 meters per minute and the thread guide part 12 carried out 900 actuation cycles per minute in the transverse movement. The ones on disks 30 and 32 provided pins 38 and 40 were spaced from the center of the disk or from the axis of rotation about 25.4> un and the disks were driven at such a slow speed that the

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Pins performed about 7200 revolutions or actuation cycles per minute. Pins 38 and 40 were length and diameter of about 6.3 mm. The angular position of the disks was such that the pins 38 and 40 are substantially in the manner for engaging were actuated on the thread and to release the thread, as shown in FIGS. 3 to 12.

It hardly needs to be emphasized that corrective operational interventions are necessary for different working conditions may be the rotational, circular or revolving movement of the pins 38 and 40 with the reciprocating movement of the thread guide member 12 synchronize in such a way that the attack on the thread and the release of the thread at the reversal points essentially takes place as explained above.

The yarn packs produced have a high degree of smoothness cylindrical shape and the yarn has a uniform at all points in the longitudinal direction as well as in the radial direction of the pack Degree of compaction. The typical bulges at the ends of the surfaces do not appear in these packs. In staining tests that were done to make comparisons between To enable the yarn wound in the manner according to the invention and yarn wound in a known manner, a noticeable one was found Reduction in the frequency of occurrence of streak marks in the yarn spooled according to the teachings of the invention. Staining strips are areas of color unevenness.

The yarn package has a multiplicity of winding layers or turns consisting of spiral segments or spirals, which appear in Figure I3 in the development. For the purpose For illustration purposes, the helix 42 is here compressed. The helix 42 have linear diagonal lengths 44 which are marked with an im substantially constant pitch angle are wound or placed in the pack, with connecting reversal curves 46 according to the Lohre mediated by the invention are formed, which are shown in "appear on a larger scale in Figures 14-16.

In the context of the invention, it is characteristic of a reversal curve, that it is largely or largely

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an arched curve 48 or a convex curve, the over a linear projection or extension part 50 a diagonal length 44 of the winding is built up to the end of the pack. The bulging curve area 48 corresponds to that on each of the reversal curves first on the thread part placed on the pack and extends sioh preferably substantially up to the intersection vertex 52 of the linear extensions 50 merging into one another Diagonal lengths 44

The reversal curves 46 each come very close to the shape of an ideal sharp-angled hairpin. It should be noted that the bulged curve parts 48 of the reversal curves 46 represent the main segments of the ψ reversal curves 46 and that each diagonal length 44 extends in a straight line further to the end of the pack than the adjacent diagonal length 44, at the end of which the bulged curve 48 is described. The achievable degree of accuracy in the approximation to the shape of a straight circular cylinder and the excellent quality of the yarn packages produced in accordance with the invention are due to the better handling of the thread drag length at the reversal points of the transverse feed and the nature of the yarn package duroh compliance with the scheme described the thread speeds and the displacement movements in the cross feed, reversal of the thread obtained reversal curve 46 attributed.

Since the thread winding layers are known on a package of

h borrowed are not stacked on top of each other in the strict sense, because the

individual thread windings during the winding process in the gaps of others Insert winding layers, the reversal curves 46 are normally also designed differently, as is expressed in the illustration of FIGS. Without prejudice to this As a matter of fact, however, most of the reversal curves 46 show in the frame According to the invention, the arched curve part 48 described and shown in the drawings.

It is obvious that instead of the one described above, Modified design with rotating cams or rotating arms, each consisting of an arrangement consisting of a disk and a pin and with other thread transverse guide devices dunking is possible.

no ^f in /, n / i? 2 ρ

The term “yarn” or “thread” in the sense under consideration here also encompasses all similar, rope-like products and by the term "spool" is meant the holders and cores of various types which are used for winding up strand materials used.

0 0 ^C JRA ^f .) / 1 Ί 2 b

Claims (1)

- 14 -patent claims Cross feed device, characterized by the combination of one first drivable arrangement (12) for guiding a strand (2ü) back and forth in the transverse direction, a second, only at the reversal points of the transverse movement for engaging in the movement path of the through the first arrangement (12) transversely guided strand (28) in the sense the issuance of an accelerating transverse guide thrust with simultaneous extension of the transverse stroke of the back and forth movement of the Strand (28) actuatable drivable arrangement (30, 32) and one third arrangement (M) which can be actuated to drive the first arrangement (12) and the second arrangement (30, 32). 2. Cross feed device according to claim 1, characterized in that the first drivable arrangement (12) and the second drivable arrangement (30, 32) through the third arrangement (m) with less or can be driven synchronously at a greater relative speed. 3. Cross feed device naoh claim 1, characterized in that the second drivable arrangement (30> 32) in an angular position is arranged to the plane of the transverse movement of the strand (28). 4 · cross feed device according to claim 1, characterized in that the second arrangement (30, 32) is formed with organs which are separate from one another and which can be driven to rotate. Ψ 5 · Cross feed device according to claim 1, characterized in that the second arrangement (30, 32) is designed with organs which are separate from one another and which can be driven into rotary movements and which are intended to engage on the strand (28) actuatable surfaces (38 $ 40), which by means of the organs (30, 32) that can be driven to rotate, form a circular movement can be actuated. 6. transverse preload device according to claim 5 »characterized in that the CU rotary movements of the drivable organs (30, 32) in an angular position opposite to the plane of the transverse movement of the strand (28) are arranged 7 · Transverse pre-lifting device according to claim 5 »duduroh characterized that it is aloh with the plates that can be actuated to engage the strand (28) 009849/1 226 chen (38, /} O) are pens. 8. Spooling device with cross feed, characterized by the 'combination a first drivable arrangement (2) for guiding a strand (28) back and forth in the transverse direction, a second drivable arrangement Arrangement (18) for winding the strand (28) transversely guided by the first drivable arrangement (2), one between the first drivable Arrangement (2) and the second drivable arrangement (l8) provided for engagement only at the reversal points of the transverse movement in the path of movement of the transversely guided strand (28) in the sense of issuing an accelerating Querfüh approximate thrust "at the same time Extension of the transverse stroke of the strand (28) actuatable third drivable arrangement (30, 32) and one for driving the first drivable arrangement (2), the second drivable arrangement (18) and the third 'drivable arrangement (30, 32) can be actuated fourth arrangement (M). 9. Cross feed winding process, characterized by the process steps the back and forth of a strand (28) in one Zone of winding the transverse or reciprocating strand (28) in a second zone, one only at the reversal points the transverse movement between the first and the second zone, engaging the transversely guided cord (28) and an accelerating one Shifting the strand (28) with simultaneous extension the transverse displacement of the strand (28) provided in one zone and with a progressive shortening of the thread drag length. 10. Cross feed winding method according to claim 9, characterized in that that the accelerating move is execution a sinusoidal motion. 11. Yarn package with filament winding layers made of turns in the form of spiral segments, consisting of diagonal stretching connected to one another at the package ends by reversal curves, which appear linear in the development, characterized in that most of the Uinkehrkurven (46) are essentially curved curves (4ß) acts, which are built over the extensions ('jü) of the Ui agonal stroclum (44) to the end of the pack, which appear linear in the development . '(J (. Ij H ' i 3/1? 2 ^ 12. Gornpacl ung according to claim 11, characterized in that the arched curves (48) essentially up to the imaginary intersection vertices (52) which appears linearly in the settlement Nenden extensions (50) of the diagonal stretch (44) extend. Ij). (JVrnpacJung according to Claim 11, characterized in that the bulged curves (4θ) are the thread lengths which are respectively first laid on the inverted curves (46) formed in the thread package. ⁰ ° ⁹ "' ^U ■' ¹ · ' ^R OBIO ₁ NAt Blank page