DE1917355A1 - Device for winding threads or other bandfoermigem material or the like. - Google Patents

Description

Priority: April 11, 1968, No. 176307/68, UK

The present invention relates to winding a linear continuous material onto a spool at high speed. The material to be wound up can be a cord, wire braid or cable and, in particular, textile yarn or thread. The material can be circular or non-circular in cross-section. Tape or strip-shaped material can be wound up with a device according to the invention, but for the sake of simplicity this material is also referred to as a thread in the following. It should be pointed out that this is not intended to restrict the invention to the winding of thread in the narrow sense.

909843/1241

- ORIGINAL INSPECTED

The spool on which the thread is wound can be a thread spool, weft spool, reel, reel or "spool" or any other shape and it can have a cylindrical or conical outer surface * to accommodate the winding. The spool may or may not have one or more flanges. The thread can be wound onto such a spool for transfer from one process stage to another in the course of a manufacturing process, or it can be wound up as a final stage prior to sale. The winding can be a simple winding layer with successive lay tightly side by side and the successive layers can be wound from one end to the other in alternating directions or the winding can be in the form of cross layers in which the wound thread is wound rapidly from one end to the other wound length is guided transversely, in each case for a few windings, the windings of adjacent layers over ·! Crosses lie at a clear angle and form a pattern in which they have one, one and a half, two or more loop bevels (loops) in the wound length of the coil. Zn some cases, _the. ^ Ufwickeln with random distribution and done with a back and forth scan, so that an approximately uniform winding ER "

90984371241

- ORIGINAL FNSPECTED

It is desirable to have a wound spool at high speed to manufacture. It is also desirable that the winding have a true cylindrical or conical shape, according to the respective needs under corresponding Has tension, resulting in a strongly wound coil which, if an end flange is not provided is, with a flat end face, free from V / Ülsten is designed. As far as is known, it is so far when winding cross layers of such a material on a Bobbin at high speed has not been able to obtain an acceptable cylindrical or conical shape » In practice, it has been found impossible to achieve very accurate cross-ply winding at significant speeds above 2000 rpm.

The present invention also extends to a method and apparatus for winding yarn a spool in which the thread is guided and moved back and forth by passing through a slot that opens onto a rotating hollow guide has been formed.

In a preferred embodiment of the invention, the is described in more detail below, the guide slot between the complementary shaped, in .. Distance adjacent edges of two coaxial

909843/1245

BATH ORIGINAL

hollow cylinders are formed with the same outer diameter that are responsible for the joint rotary movement around the equal® Axis are attached. The slot so formed consists of a series of sections, preferably four. Everyone Section is a segment of a spiral, the spirals having the same inclination or the same distance and are of equal angular extent, each occupying 90 ° of the circumference of the composite cylindrical shape, which is formed by the two cylinders. The thread enters the slot at one point, passes through the interior of the compound cylinder and exits approximately at the diameter point.

With this arrangement, when the guide rotates, the thread is reciprocated. The point where the thread entering and exiting the slot are substantially in the same plane, perpendicular to the axis the drum, the drum and the spool being rotatable about their axes are fixed at a speed ratio that roughly corresponds to the desired position.

In a device according to the invention it has as Proven possible, the reel with sufficiently high accuracy at a high winding speed of at least 10,000 rpm to manufacture. The device enables changes in the

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speed ratio of the spool and the guide to get the Pattern of the position of parallel loops to cross layers with one, one and a half and more loop inclination on the The length of the bobbin.

Other aspects and advantages of the invention are following description of a typical embodiment

f
measure of the invention.

In the attached drawings:

Fig. 1 shows an acheraat position of the general arrangement a device for winding cylindrical yarn packages;

Fig. 2 is a plan view of a practical embodiment of the thread winding device of Fig. 1;

Flg. Figure 3 is a side view of the same device looking in the direction of arrow 3 of Figure 2;

Fig. 4 is an embodiment of the cylindrical surface the guide drum, shown on a reduced scale;

Fig. 5 is a sheared cross-section of the guide drum along the line 5-5 in Flg. 6;

Figure 6 is a schematic longitudinal cross-section of the guide drum along line 6-6 in Figure 5;

FIG. 7 is a schematic view taken in the direction 7 in FIG Fig. 5 and shows the movement of the thread during the first 90 ° of the movement of the guide drums? and

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Pig. 8 is a schematic view in the direction of FIG Pig, 5, with the guide drum extending 90 ° the one in Pig. 6 has rotated position shown. This figure shows the movement of the thread material between 90 and 180 ° movement of the guide drum.

Pig. 1 shows the general arrangement of a thread winding device, which is shown in a typical exemplary embodiment, in this Pail for unwinding thread from a spool at 10 and winding on a spool at 11. The thread 12 runs from the bobbin 10 via a guide 13 through two electrically controllable thread tensioning devices .14 »15, then through a horizontal slot in a guide plate 16 and through a guide strut 17. The Thread emerges from the guide drum and runs over the horizontal edge of a further guide plate 18 and is then wound onto the package bsi 11. The string is guided back and forth along the spool by the guide action of the drum.

The guide drum 17 and the spool 11 are on shafts 20 and 21, respectively, with the shafts at a predetermined speed ratio by a drive device and a clutch 23 are rotated via a prime mover 24. The guide drum 17 is supported by an articulated arm 25

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and is essentially balanced by an adjustable tension spring 26. The movement is controlled by the damping device 27 muffled. The thread is wound onto the bobbin 11 and, when the bobbin is through, the wound Packing increases in diameter, and against the guide plate 18 pushes, the plate is driven so that the arm 25 pivots. The guide plate remains under tension the spring 26 in contact with the surface of the wound thread on the bobbin 11. ...

It is desirable that the tension atijf the thread as it does is wound, may vary in accordance with the winding diameter of the package. Therefore a control device 23, which is responsive to the movement of the arm 25 responds, arranged so that the voltage is influenced, which is caused by the voltage means 14 and 15.

A practical embodiment for winding a thread, with which a very high winding speed can be achieved, is shown in FIGS. This apparatus comprises base plates 50 and 31 which are mounted on supports 32 sindο The base plate 30 carries a prime mover corresponding to that indicated in Fig 1 with _o 24th It consists of an electric motor. On the bottom plate 31 are two similar vertical,

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parallel support plates 33 and 34 attached and a third support plate 35, parallel to the other two. A main drive shaft 36 is mounted in the two plates 33 and 34, the shaft being driven by a belt drive which includes a pulley 37 on motor shaft 24, a pulley 38 on shaft 36 and a drive belt 39 contains.

A clutch 23 is on shaft 36 for coupling the pulley 38 arranged with the shaft 36. The shaft 21, on which the package 11 is wound, is from the shaft 36 driven by a drive. It includes a drive gear 40 on the shaft 36 which meshes with a loose drive gear 41 can be brought to the the shaft 42, which in turn is mounted in the plate 33. The above-mentioned drive also includes a Gear 41, which in turn engages in a gear 43 on a further shaft 44, which is in the plates 33 and 34 is stored. The gear ratio can be easily influenced with these gears. The gears 40, 41 and 43 are arranged on the outside of the plate 33, as can be seen from FIG.

Between the shaft 44 and the shaft 21 thus results an infinitely variable drive ratio. This contains

909843 / $ 124

a step pulley 45 on the shaft 44 and another Step washer 4? with opposite inclination or gradation on the ■ shaft 21. A flat belt 48 connects the two stepped discs 45 and 47 in the side position the belt with the two pulleys and the tension of the belt is carried out by a swiveling spring-loaded Guide roller 50 controlled. The guide roller 50 is mounted on a block assembly 51 which moves laterally can be that the belt shifted and thereby the effective speed ratio between the shafts 44 and 41 is changed. You can block arrangement yourself move along a guide rod 52 at its ends is fixed in the plates 33 and 34. In this way, the shaft 21 at the desired winding speed operated, the winding speed of the Shaft 20 with regard to shaft 21 mainly through the gear ratio of the gearbox or the gear connection 40, 41, 43 can be determined with small changes made possible by the variable transmission that results from the pulleys 45, the belt 48 and the pulley 47. The end of the shaft 21 is, as shown, provided with a tapered portion 21a. A suitable friction clutch is arranged on this section, or a similar arrangement to receive the package 11 and hold on.

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The mechanism described so far drives into action the spindle 21, on which the spool 11 is mounted, at a predetermined speed over the shaft of the Motor 24 on. There are also means for driving the shaft 20 is provided, from which the guide drum 17 is carried will. The drive is accomplished in such a way, that the guide drum against and away from the winding the coil 11 can be moved.

For this purpose, the shaft 20 is carried by two arms 54, 55 which are rigidly attached to a transverse shaft 49 which is fastened at its ends in bearings in the carrier plates 34 and 35. The two arms are bridged by two rods 56, 57, which together with the guide part 16 of the Pig. A , the edges of the rods lying next to one another being arranged at a small distance from one another so that a guide slot 58 for the thread results between them will be carried.

An arm 60 which is attached to the shaft 49 so that it moves in unison with the arms 54, 55 is so with attached to one end of the spring 26 so that the other end thereof is anchored to the base plate 31. Also on

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Arm 60 is attached to one end of the damper 27, the other end of which is also attached to the same base plate. The tension of the spring 26 is adjustable, e.g. by providing alternate mounting holes 61 for the spring so that the movement system, which the guide drum 17, the arms 54 »55» the arm and the parts attached thereto are substantially balanced about shaft 49.

The shaft 20 is driven by the shaft 36 with the aid of a chain drive driven. A sprocket 63 is mounted on the shaft 36. The chain 64 runs around the gear and around a sprocket 65 on the extension of the shaft 49ο The chain is driven by an adjustable guide sprocket 66 excited. Another short chain drive from shaft 49 to shaft 20 is by means of a chain sprocket 67 »a sprocket wheel 68 and a chain 69 are provided. Since the arms 54 and 55 are rotatably supported around the shaft 49 are, the arms can pivot while the drive of the shaft 20 is maintained.

In the construction of very high-speed thread winding devices The speed limit is largely given by the need to set a certain amount The breaking strength of the thread must be observed. In the case of quickly

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running thread winding devices, as they are described here, results in the limitation in large Extent by the nature of the thread traverse guide, especially in relation to the tensioning device for the thread. The tension must be such that damage is avoided let: For example, badly shaped coil ends in the case of a cylindrical or conical winding, loosely winding the thread on the bobbin, which is the diameter the wound bobbin increases and causes its "grip". On the other hand, the higher the voltage, the more probable it becomes that the thread breaks because of the increasing forces exerted by the small, rapid movements of the thread and especially from those who focus on the Faaenführung- and voltage devices are to be returned ο

The embodiment according to the invention described above is a particularly satisfactory take-up device specified. This is clearly shown in Fig. 2 and schematically in Figs.

According to Fig. 2, the guide device is considered to be continuous Slit formed, the shape of which lies on the surface of a properly circular cylinder. A common one Method of forming the slot and the

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909843/124

Approximate form of the described invention applied method consists in that the slot is formed by complementary shaped edges from two cylindrical parts, such as this is indicated by 71 and 72 in FIG. These parts together form the take-up guide drum 17. The two cylindrical sections are attached to the shaft 20 so that they always move together, but the at 73, leave a slot of constant dimension. The slot consists of a series of sections, where each is a segment of a spiral, Ss are an even number of sections; every spiral has that same slope and takes the same angular extent of the circumference of the drum. The spiral segments are alternating left-hand and right-hand. They are arranged so that the thread will enter the slot at one point can, runs into the interior of the drum and exits the slot at a second point, the two points lie essentially in the same plane transverse to the axis of rotation of the drum. Then when the drum turns the entry and exit points of the thread in and out of the drum will change, and in one direction move along the drum axis, but always lie in a plane, perpendicular to this axis.

There are different slot shapes that obey these conditions, but the preferred shape is one of four spi-

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90984 3/124 5

Ralabsohnitten formed slot, the entry land and exit points of the thread are essentially diametrically opposite. This arrangement is used and shown in the described lifting mechanism. The slot can be seen from Figures 2, 4, 7 and 8. The slot consists of four sections 74, 75 »76 and 77, each of which occupies 90 ° of the circumference of the drum cylinder. The thread, guided by slot 58 between guide rods 56 and 57, enters the drum at a point such as 79, passes over central shaft 20, and exits the slot at point 73 . It is obtained by cutting the edge of the guide plate with the slot in the drum.

The slot section 74 is part of a real spiral, as can be seen from the development of FIG. 4, so that when the thread is initially at point a (see FIG. 7) and then the drum is rotated by equal angular proportions As indicated by b, c, d, e, f and g, the thread displaces equal linear distances. is, as indicated by the points b ', c ¹ , d ¹ , e ¹ , £ · and g' along the upper edge of the guide plate 18. Thus, when the shaft rotates at a uniform speed, the filament is heading at a linear speed along the edge of the plate 18

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The arrow 81 moves. During the last quarter turn of the drum, an equal angular displacement of the drum in the direction of arrow 82, corresponding to points h, j, k, 1, m and n, is then achieved in the same way, the thread through successive equal proportions h ^f , y , k ' , I ¹ , m ¹ and n ¹ lead, as indicated in FIG. The thread is accordingly moved at a linear speed in the opposite direction, as indicated by arrow 82. In this way, the thread is wound onto the package 11 at a linear crosshead speed.

Because of the symmetry of the slot 73. at the moment έτι which the thread e.g. the slot at point 78 (see. Fig. 4) leaves, corresponding approximately to a point a in Fig. 6, it is in the drum at the point 79 corresponding to the point η in Fig. 7, which is exactly opposite. As can be seen from FIG. 7, point 79 is immediately behind Point 78. If the thread runs out from any other point it will enter the drum at a point which is in Fig. 7 immediately behind this point, imd so the thread inside the drum is always in a Direction substantially perpendicular to the axis of the drum in the manner indicated in FIG.

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This arrangement of the running through the guide drum Thread seems to be of great importance in order to be able to wind the spool of thread at high speed to be able to.

Although the embodiment of the invention has been described that yarn packages with parallel end faces arise, so the mechanism can easily be used to wind up non-cylindrical, e.g. conical packages «, The length of the winding of the package is determined by the axial extent of the spiral-shaped segments of the slot 73, but a guide drum easily removed and replaced when a different take-up length is desired. Different thread layers can be obtained by using the change gears 4-0, 41 and 43 changes and different frictional conditions through the step disks 45 and 47 and the movable ones Provides belt 48, which makes it possible to adjust the winding speed to a certain extent, and it se with enables threads of different thicknesses to be wound tightly.

The device for adjusting the voltage operates in the manner as described in connection with FIG

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909843 / 1-24S

is, but not in FIGS. 2 and 3. A common method to achieve the desired control exercise, is movable to arrange the arms 54 and 55 to control a variable resistor, which in turn regulates the voltage of the variable voltage means 14 , 15 is supplied.

Claims

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909843/124 5

Claims (1)

Claims 1. Device sum winding thread on bobbins, characterized by a thread guide device with a first and second part, which has adjacent cylindrical surfaces, the surfaces are arranged complementarily at a distance, so that there is a thread guide slot, the slot being a having an even number of spiral segments, and each segment is part of a spiral of the same pitch and has an annular extension around the cylindrical surface, successive segments being right-hand and long-hand spirals, further by means for turning these parts together around to rotate an axis, the thread guide means causing a thread to enter the slot at a first point and exit the slot at a second point, these first and second points being approximately in a plane perpendicular to the axis of rotation. ■. - ■ ^: " ■ *:"'--; ^ 2ο Device for winding thread onto bobbins, marked through an introductory 909843/124 direction, with a first and second hollow cylinder, the surfaces of the cylinders having the same exterior Have diameter and are arranged coaxially to one another, and the adjacent edges of the cylindrical parts shaped complementary and at a distance formed from each other to form a thread guide slot a are, furthermore, by means for supporting these parts with edges in a rigid relative position to each other, this device enabling these parts to rotate together about an axis »during their edges remain in this rigid relative position and the slot has an even number of spiral-shaped ones Having segments, each. Segment is a segment of a spiral of the same inclination and an annular one Has expansion around the cylindrical surface, with successive segments loosely and right-hand spirals are also thread guide means to guide the thread into the slot a first point and for passing through the interior of the hollow cylinder and exiting the slot at a second point, the first and second points extending along one device the axis of the rotating parts and at any point in time during the rotation in approximately a plane at right angles moved to the axis. - 19 - 909843/1245 in 3. Apparatus according to claim 1 or 2, characterized in that the first and second point lie approximately on a diameter of the cylinder or cylinders. 4. Apparatus according to claim 1 to 3, characterized in that that it has four segments. 5 ο Device according to claim 1 to 4, characterized in that it comprises a thread tensioning device for controlling the tension of the thread which is fed to the guide device, as well as a device for automatically adjusting the tension of the thread in accordance with the outer diameter of the Set the bobbin on which the thread is wound by the thread guide device, ο Device according to claim 1 to 5, marked, sseich net through a guide plate over the edge of the Thread runs from the guide devices to a bobbin on which it is wound. 7 = device according to claim 6, characterized in that the guide plate opposite the - 20 - 909843/124 Bobbin is resiliently attached and presses against the surface of the thread wound on the bobbin. 8, device according to claim 7t, thereby g e k β η η ζ Egg paves that the guide device and the guide plate are flexibly attached together. 9. Apparatus according to claim 8, characterized in that the guide device and the Guide plate are mounted on a balanced or balanced arm. - 21 - 909843M248