DE2125962A1 - Method and apparatus for producing a number of pairs of matched treated yarns - Google Patents

Description

description sum patented

of Mr. Lewis Uenry C ο 1 t ο η Nottingham / England

concerning

"Method and device for production a number of pairs adapted behan * delter yarns "

Priority! 26 ,. May 1970 - ENGLAND The invention relates to the twisting of yarns "

First and foremost, but not exclusively, is the Finding endless, thread-like thermoplastic fibers on the folding wire Directed yarn. With the conventional false = wire twisting machines, synthetic yarn with a ver * relatively large number of turns per inch rotated and stabilized by exposure to heat ο Under a relatively moderate a large number of drainages is

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wise to understand a suitable number in the range of 80 to 120 per 25.4 mm (per ^H ), so that a yarn of, for example, 20 to 40 denier about IQO threads per 25.4 mm (per inch) are reported. In either case, twisting and setting the yarn causes it to become bulked and "come alive" during subsequent recovery. A wrongly twisted yarn is therefore a "stretch" yarn that is suitable for the production of stretch goods and hosiery, ζ.Β <of stockings and tightso

A conventional process in which the yarn has a Rotation is granted, uses a dieh head, with one gouged, rotatable annular body, with the yarn is rolled over the inner surface of this body, so last it drifted around its longitudinal axis by the action of friction * The body can for example have triangular ends so that two yarns are equilateral in opposite directions Directions can be passed through it. In this way, two yarns become opposite at the same time Direction, d * h · in the S * and in the Z direction

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In a conventional yarn treatment device a number of these rotary heads e or twist generator used, which are located at a distance from each other longitudinally

of the yarn path, heating devices being interposed so that the yarn passes successively through the rotary heads and over the heating devices. However, even if the heads have funnel-shaped ends, as mentioned above, a maximum of only two yarns can be treated on the same side. This obviously represents a strong limitation ά · ν productivity of the apparatus.

Apparatus of this type can be used to treat yarn as it is delivered to a knitting machine or other Textile machine the device on only two-system machines. borders «For machines with a greater number of feeds it was necessary to provide additional devices, each of which has a set of rotary heads and associated Has heating devices * For a four-system machine, for example, the device must be doubled will.

Apart from the multiplication of costs, doubling the device has the disadvantage that the yarns cannot all be treated under the same conditions in all sets of the device, with the result that

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that they show different properties so that the Product knitted by the machine not evenly willo

The main object of the invention is to improve the lei = capacity and the range of application of a yarn treatment device of the kind mentioned.

A method according to the invention for generating a multitude of » number of pairs of matched yarns consists essentially in that the yarn pairs mentioned so by a rotary head be guided, which has at least one annular rotating body that the yarns in each pair through the Body or through one of the bodies in opposite directions, the yarns in friction system on the body or bodies, the body or all bodies are set in rotation at a selected speed, so that by the effect of friction all yarns are twisted under identical conditions and thereby a number of pairs more matched Yarns with identical twist fluff characteristics are produced and the twisted yarns are stabilized by the action of heat <>

A device according to the invention for generating a number

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of pairs of matched treated yarns has a number of rotating heads through which the pairs of yarns in succession on their "way through the device, and heating devices, which the twisted yarn" he " heated, with each rotating head having one or more rotating has bare ring body through which the pairs of yarns are passed so that they are frictional are rotated on their inner surfaces, and the yarns through in the or each pair in opposite directions run the same body, so that an opposite rotation is communicated to them »

The invention therefore significantly increases the performance of a twisting machine without its acquisition costs to increase significantly. The distributions that can be achieved by the invention are of particular importance for a yarn treatment device for a knitting machine. In this case, a single set of rotary heads can be used Generation of an Ansah! of pairs identically matched Yarns are provided, thereby increasing the evenness of the knitted fabric made from the yarns is ensured.

6eai & an implementation forum of the invention, a "lot" number of pairs of Gara are passed through the or each rotating body of each rotating head of the device, wherein

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6arn «guiding organs are provided in connection with the head are in order to keep the likes at an »angular distance from one another hold and “was both when entering the rotating body and when leaving it.

In another embodiment, each rotary head can have one . Have a number of rotatable king bodies, through each of which yarn pairs running in opposite views are passed can be, as well as means »by which the ring body ■ it the same speeds of a common Drive source from so three could be that the yarn pairs are rotated under the same conditions.

X »in the latter case it is possible to use the common drive» source for the rotating body or twist encoder to incorporate the rotating head itself. For example, an electric motor or "a hydraulic motor with a suitable transmission device (e.g. a gearbox) can be used between the motor and the twist generators or rotating bodies however, a belt drive is used

Each rotating body in the rotating head therefore preferably carries a floating-axis disk by which it is driven to rotate can be, with all disks in head identical

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are »so daft di« rotating bodies at the same speed of be driven from a common drive source can*

These pulleys are held by a belt from a main drive pulley or main drive pulleys outside of the head driven, usually the drive pulley or disks in the yarn treatment device built-in, which «dt the rotating head is disengaged» whereby the rails driving the rotating bodies are placed, after the head has been inserted into the device.

The drive from the driving pulley or pulleys can be direct or via an intermediate shaft. In this' case, the rotary body or twisters to rotate u * a geaeinsaae axis are mounted and the intermediate shaft is ait angeovdnt its axis parallel to this ge "· aeinsajsen axis * _t which intermediate shaft from an other outside drive roller from can be driven, a plurality carries identical disks, each of which is assigned to one of the swirl drive pulleys, and serves for the drive of the assigned disk by a giant.

Each rotating body or swirl generator preferably has one

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relatively small central opening, which is axial extends to the swirl generator and merges into funnel-shaped ends, each of which is a oak widening to the outside world has convex surface of ring shape and is provided with an initially separate ring which is in an annular groove inserted into the surface mentioned and is somewhat raised compared to the main curve of the latter and furthermore from one Friction-generating material is made so that yarns passing through the head are captured and passed through the head in the first place Contact with the mentioned rings a rotation is communicated.

The rotating body or twist generator can therefore use the fori « table patent 1,042 »811 have the form disclosed *

The invention has proved to be very suitable in connection W, with the production of stockings, pantyhose and ännlichen Bekleidungestücken, in which it is important that the yarns from which the garment is knitted, are completely matched to one another, of a uniformity finished garment · to ensure .. The invention therefore includes within its scope an item of clothing of this type which has been produced according to the method according to the invention.

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In order to facilitate the understanding of the invention and to enable its implementation, reference is made below to the Reference is made to the accompanying drawings, in which two exemplary embodiments of the invention are shown are namely show:

Figure "1 is a front view of a yarn erfindungogemässen" treatment apparatus for a knitting machine ι

Fig. 2 is a view of a vertical section through an au « Saauaenosed rotary head of the treatment device shown in Figo 1 used Fora;

Fig. 3 is a Scheatic view in a circuit diagram. position showing the trajectories followed by the yarns in the apparatus of Figure 1;

Fig. H is a view of parts of a treatment device of the type shown in Fig. 1 to illustrate another embodiment of the invention and

Fig, S is a somewhat achesatic view in the direction of the

Arrow A in Figo 1, in which the rotary head partially is shown in section and its housing is the upper "

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visibility is shown in dash-dotted lines}

6 shows a schematic side view of an inventive Rotary head heating device,

Xn the different figures denote the same reference numbers » far equal parts «

Xn Fig. 1, a treatment device P is shown » carried by a vertical shaft S carried by a four-system circular knitting machine K conventional . Design is directed upwards. The shaft S also carries a number of bobbins B made of several filament thermoplastic KnloBgarnen for delivery to machine K. The yarns are moving therefore from the bobbins B to the device P upwards, in which they are treated before delivery to the knitting machine K «

The device P has a frame (which the upper

^{for the} sake of clarity is shown as a triangular base 1), which carries a number of rotating heads T, a compensator C and heating devices H. Three of the rotating heads T1 * T2 and X3 are each provided one at each corner of the base 1, where bilge devices are arranged on the sloping sides of the base. On the horizontal side of the base is the rest of the rotating head T ¹ , which is arranged adjacent to the rotating head T3, while the compensator C

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is arranged adjacent to the rotary head Cl.

Each rotary head T is driven by a belt of one flexible drive shaft 2, which in turn is driven by the main drive shaft of the machine K » The speed of the shaft 2 is related to that of the machine via two belt drives 3 and H and a variable speed gear 5, which the latter can be used to change the speed ratio when there is a need for yarn machine K increases (e.g. when knitting longer stitches.

The shaft 2 is connected in the device P to two toothed disks 6 (only one of which is visible), which are arranged side by side and mounted on the frame of the device. One of the disks 6 drives a toothed main belt 7, which essentially follows a triangular path , follows around the frame 1, where it is _{guided by a further number of toothed disks Sa 9} 8b, 8c and 8d and by a single freely rotatable guide disk 9 «

A disk of this Scheibeneatzes 8a to 8d leads Main belt 7, while another is used for driving the rotating body of the associated device (i.e. a turret T or, in the case of disk 8d, the

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Compensator C) Via an auxiliary belt 10.

Before being taken to Figo 2 to explain the design of the rotary heads C Bexug, the compensator C is briefly described o £ r has a housing 11 which is arranged on the frame 1 of the device and carries two horizontal parallel shafts 12, which from opposite sides of the Housing 11 protrude. The protruding part of each shaft carries two washers. 13, around which the yarns are guided when entering or exiting the device. The disks on the shaft 12 on the right-hand side of the compensator in FIG. 1, for example, guide the likes when they enter the device P _9, while the yarns are guided around the disks on the left shaft 12 when they leave the operation , with which the shafts 12 are driven, is chosen so that the yarns P both when entering and when leaving the device P exactly

the same required drive speed is communicated as described in more detail in the aforesaid patent.

Reference is now made to Figure 2- in which one the rotary head Tl or T2 of FIG. 1 is shown. Of the the other of the two rotating heads is basically of a similar design. According to the differences compared to the arrangement Fig. 2 is referred to in more detail below "

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The rotary head T has a hollow Kaaaer It, which are arranged at the lower end of the frame of the device P. can. This Cairo delimits two identical upright housings 15, each of which is a rotatable annular Twist generator 16 carries «Each of the twist generator has two coaxially arranged elements 17, which are opposite one another and are rigidly connected by a socket 18. Each Eleasnt 17 is generally funnel-shaped and carries an insert ring 17a of a friction generating material (e.g. of a ceramic material) through which Yarns passing through the twister are detected and rotated when the latter rotates.

The bush 18 trigt the inner race of a ball bearing IS _9, the outer race of which is arranged in the Kaaner IH of the rotary head. Along the inner race of the bearing 19, the bush 18 carries a toothed disk 20 through which the swirl generator 16 is driven to rotate in general operation. The toothed disk 20 is in turn driven by a belt which is formed with teeth complementary to the teeth of the disk. The swirl generator 16 ia housing IS on the right-hand side of FIG. 2 is identical in its construction to that described above and is driven by a similar toothed belt 21. Each of these belts is 'u' the toothed pulley 22 on a common white

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le 23 led around, which is parallel to the two twist generators 16 in bearings 2t in the chamber 1 * "stored" between The shaft 23 carries a drive pulley 25 of the two toothed disks 22, which is also cutted and in turn is driven by one of the giants 1 shown in Fig. 1 c

As can be seen from the foregoing, the in Fig. 2 shown «Rotary head in this execution fora two pairs of yarn treat, one in each twister 16, with the yarns of each pair passing through in opposite directions the respective twist generator 16 are guided, so that they • an opposite rotation is communicated • each of the Swivel therefore generates a twist in the S direction and one twisted in the Z direction. Here, however, is to be » imagine that there is more than one pair of yarn through each twisting device 16 performed within the scope of the invention can be »as explained below. In the present embodiment, “for” is because both twist generators 16 are identical and because they are “driven at the same speed the two yarn pairs treated by the rotary head are fully matched to one another, since they are under identical conditions have been treated o

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The rotary head T at the lower left corner of the treatment device P in Figc 1 is identical to the head of Figo 2 with the exception that the intermediate shaft 23 (Fig * 2) in the chamber Vi is omitted in the rotary head, since the grooves 21, which drive the swirl bodies 16 are driven directly by the pulley set 8b assigned to this rotary head of the rotating head. In addition, each of the belts 21 is crossed between the pulley set 8b and the driving toothed pulley 20 of the respective twist generator 1, so that the two twist generators 16 are driven in opposite directions to the twist generators 16 in the other rotary heads. This arrangement of the drive of a rotary head in the opposite direction is _y like "I can find in practice that vorteilhaftesten treatment conditions.

The last “turret TH is down on the frame of the device de »rotary head T3 identical <d, h · dl · intermediate shaft 23 of the Fig. 2 is omitted) with the exception that there is no reversal of the drive takes place, in other words, the giants 21 are not crossed between the rotating head and the associated disk set 8c.

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FIG. 3 is an apparent representation which shows the paths of the yarns through the rotating heads in the device according to FIG. Each pair niaat its way through the respective twist generator 16 of the rotary head it Tl en the lower right corner of the device, via the right heating device H ″ (the heating devices are in Fig. 3 the clearer

Omitted for the sake of illustration) via the rotary head T2 aa upper end of the device, over the other heating device H, over the turret T3 at the lower left corner of the deed (the one opposite to the other turret is driven) Above the turret TH at the bottom of the device and back to »capacitor C before delivery to the machine follows. As can be seen, the yarns of each pair follow identical paths and are under them rotated under identical conditions, so that when "leaving the device" produces two pairs of fully matched yarns have been. This creates equality and sails " Massiveness is ensured in the goods to which the Qarae is knitted

As can be seen from the foregoing, by increasing the number of coaxial twist generators 16 in each rotary

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head and by increasing the width accordingly the heating devices an even larger number of pairs of yarns under identical conditions in the inventive lake Way to be treated. For example, when the size of each rotary head is doubled compared to the embodiment according to Figo 2 four pairs of adapted yarns are produced in a single treatment device »

A further embodiment of the invention is shown in FIGS.

Fig. H shows part of a game treatment device, which is similar to that shown in FIG. 1 and has a basic frame 1 which has a triangular shape and which has a every corner from which a rotary head T is arranged "In this case the rotary heads T are the ones at the front" extending Auführungungefora shown with the exception that each head only a single annular swirl generator owns. Instead of only a single pair of yarns being passed through each twist generator (as in Fig. 1-3) two pairs of Gern are passed through a single twist generator 16.

Therefore, the yarns Y1, Y2 of one pair of each occur

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opposite sides of the twist generator IS straight from the heating device H the other pair Y3, Yt runs parallel to the yarns Yl ₁ Y2 over the heating device H, 'but each is deflected by a guide 6 before reaching the rotary head! that the yarns enter the rotary head at an angular distance from the corresponding yarn Yi or "Y2 in the other pair" Yarns Yl are deflected back. As shown in Fig. 5, the guide G is arranged * that each yarn Y is drawn into close contact with the insert rings 17a and in contact with the surface of the twist body 17 on each side of each of the rings passes through this it ensures that the yarn is inevitably given a twist by friction »

As can be seen from the foregoing, it is possible within the scope of the invention to have more than two at the same time Guide pairs of threads through a single swirl generator, as long as the yarns are separated by suitable guides on opposite sides of the twister

Auseerdem, in a turret of the Darge in Figo 2 x = current form with two or more annular swirl "

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Coarse a multitude of pairs of yarns through each twister "For example (as with DT indicated in Fig. 5) a double "= · rotating head with an ent = · broader heating devices can be used «Each twister then picks up two pairs of yarn and turns them, so that four pairs of identically matched yarns can be produced by the treatment device. Of course, can by increasing the number of pairs of yarns twisted by each twister, the applicability of the treatment device is still increased more to be expanded "

In this way it is possible to expand the scope of the invention even more. For example, a yarn treatment device according to the invention can be adapted to deliver yarn to a multi-system machine (that is, of the largest diameter, for example an interlock machine or a single or double Jersey machine) _{or the like}

In this case Kötzer can untreated from flat, d _e h ". Yarn »carried by Ernest creel fed" of the machine through a treatment device by which he »inventive method werdenο The large number of yarns _s promoted by such a Haschine ₉ may be implemented using a relatively small number of rotation"

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heads are handled in such a way that _$ equilateral a gposße number of Garapaaren by each head when using guides from the ^one in Prinaip in Figo ^ and type shown are led. "

The treatment device can be arranged between the bobbin frame and the machine and the Sara der lets «= ψ teren be pulled through a Vei» divider head at the top of the machine.

A second example of an application of the invention is at the production of warp beams is described. FIG. 5 shows a treatment device according to the invention presented for this purpose

The drawing shows a rotary head T of similar design ^ as shown in Fig.% S and illustrated, the axis with its turning "is disposed on waagrseht _o jsder side of the head is calibrated ein® yarn guide 26 ₉ by a horizontally directed comb 27 _s is formed which has five teeth 28, on each of which a tube 29 is arranged ₉ through which the yarns are passed »Each comb shown has an identical partner (not visible), the teeth of which are oppositely directed ₀

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The pair of combs 28 on the left-hand side of FIG. 6 feeds five pairs of flat yarns to the rotary head, one of which does not bobbin frames shown, with the yarns in each pair running through the head in opposite directions. pass through, the other pair of yarns lead the Yarn leaving the head via a common heating device, H, the heating surface of which is arranged in a vertical plane. From here the yarns can pass through further turning heads and via further heating devices depending on the desired wire properties that are to be communicated to them, before they are wound onto the warp beam.

The vertical arrangement of the heating devices H enables other similar rotary head / heating devices to be installed next to « can be grouped together in the smallest possible space. This is how it would be in the case of a warp beam made of 500 yarns carries, it may be necessary to have 50 juxtaposed devices of the type shown in FIG. 6, each of which 10 yarn treated to provide.

The heating device H can of course, if necessary, be arranged at any other angle «

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Directed at any "twisting machine of the type ₉ in which finding the E _s is assumed tHe Gai? N are deflected with a geringstniöglichen amount must _see during his wire wis'd informed jedoeh is no Se« = · restriction terms the amount of the »UiQlenken _s that can be applied below»

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Claims (1)

M «761 λ * P ate η t a η s ρ r ü ehe: Method xur production of a number of pairs of matched yarn "characterized" in that the yarn pairs by a Rotary head »the at least one ring-shaped twist generator on» indicates "SQ be passed through" that the threads of each pair the yarns pass through the twist generator or through one of the twist generators in opposite directions in friction "on lage axt de" swirl generator or "with the swirl generator" be guided, the twist generator or all twist generators s & t are rotated at a selected speed »so that through Friction all yarns are twisted under identical conditions and thereby a number of pairs of matched yarns which show identical turning features, and which twisted yarns are fixed » 2. Device for generating a number of pairs of matched treated yarns with identical twisting characteristics, characterized by a number of rotating heads (T) through which the yarns (Yi, Y2: Y3, Y «O successively through their run 109850/1866 the performance pass through, and heating devices (H) along which the twisted yarns are heated, each rotating head having at least one or more ring-shaped twisters (16) through which the yarn pairs are guided so that they can be frictionally contacted the inner surfaces of which are rotated, the threads of each pair running in opposite directions through the same twist generator (16) so that opposite rotations are communicated to them _{or the like} 3. Apparatus according to claim 2, characterized in that each rotary head (T) has a number of annular twist generators (16), through each of which pairs of yarns can be guided that run in opposite directions, and a device (10, 21, 22, 20) for the rotary drive of the twist walker (16) at the same speed by a common drive source (6), so the Garnpaare daft under the same conditions are rotated _o <»" Device according to claim 3, characterized in that daft each twist generator (16) in the head (T) an equiaxed one -2 * 1 - 109850/1666 Carries disk (20) by which it can be driven to rotate, with all disks (20) in the rotary head (T) are identical, so that the twist generator (16) ax the same speed from a common drive source 6. Can be driven from. 5ο device according to claim H, characterized in that the twist generator (16) for rotation about a geneineaae axis are mounted, and an intermediate drive shaft (23) is provided in the head so that its axis for the common Axis is parallel, which shaft (23) can be driven from an external drive source (6) and a Number of identical disks (22), each of which is assigned to one of the swirl generator drive disks (20) and the associated disc (20) was driven over a belt (21) ο Device according to claim S, characterized in that the intermediate drive shaft (23) carries a disk (25), through which they are driven by an outer drive pulley (6) Can be driven over a belt (10). - 25 109850/1666 H 8761 7. Device according to the preceding claims, characterized marked that each twist generator (16) behaves a " has nismäseig small central opening that extends axially extends to the swirl generator and goes into funnel-shaped ends (17), each of which extends outwards has a widening convex surface of ring shape and ■ it is initially provided with a separate ring (17a) at the top, which is inserted into an annular groove of the mentioned surface and is somewhat raised from the main curve of the latter, which Ring is made of a friction-generating material, so that yarns passing through the head of the Rings (17a) erfaftt and primarily through contact ■ dt these are formed. 8. The device according to claims 2-7, characterized in that it is assembled with a knitting machine or “on” its textile machine (K) and has a number of disk sets (6, 8, 9), one of which each; each rotary head (T) is assigned and of which the. Twist generator (16) in the rotary heads (T) are driven via belts (10), which sets (6 ₉ 8, 9) are yours? » on the other hand are driven at a speed that corresponds to the 109850/1666 M 8761 Machine · (K) is interrelated o Thus the device according to claim 8, characterized in that a common drive belt (7) each "of the pulleys" sätxe (6, 8, 9) communicates a drive and even from the knitting machine or other textile machine (K) a «flexible drive shaft (2) is driven in such a way that the speed at which the common drive belt (7) is driven and thus the speed of the swirl generator (16) in the rotary heads (T) «the speed of the machine (K) changes» 10. The device according to claim 2, characterized by a number of pairs of yarns (Yl, Y2 s Y3, YH) through the or each twist generator (16) is passed through each rotary head (T), with yarn guiding elements (6) belonging to: Head (T) are assigned in such a way that the yarns (Yl, Y3; Y2: Y *) • are held at an angular distance from one another before-4ie enter into it and when leaving it. -., 11. Rotary head * for a device according to claim 2, marked » - 2? 109850/1666 2125982 net by a number of annular twist generator (16), through each of which pairs of yarns are passed can run in opposite directions, and a device (10, 21, 22, 20), which the rotation drive the swirl generator (16) at the same speed from a common drive source (6), so that the pairs of yarns are twisted under the same conditions » 12. Struapf, tights or the like "garment, characterized in that Dafi this has been knitted from a plurality of pairs Adapted ₀ yarns which have been treated by the process according to claim 1 α For: LEWIS HENRY COLTON MHNTAdWALTf
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