DE2057318A1 - Method and device for pulling off threads - Google Patents

Description

Gm 70/422 2057318 • R
FT P + ■■

Method and device for pulling off threads

The invention relates to a method for peeling off Threads of yarn packages, which have an axial passage and presented to a further processing machine and a device for performing the method .

It is known to take the threads from bobbins that make up a machine be submitted for further processing, peeled off overhead or tangentially and exposed by means of Feed guide devices to the individual processing points of a machine. To avoid operating errors and to enable work on the original spools, however, when a large number of spools are presented, the The threads are guided to the processing points in such a way that there is a clear and unhindered access. to the individual bobbins ensuring thread run results. A clear and easy-to-use guide to the von However, the threads drawn off the supply bobbins to the processing points are often due to the limited space available not possible on the machines. This is particularly true when a processing point has two or more threads have to be fed in, for example in the production of core yarns on ring spinning or ring twisting machines. as well the clarity of the grain and the accessibility to the. Original bobbins impaired in that the withdrawn threads are first led away from the bobbins and then exposed to the processing points of the machine

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are fed. This type of thread guidance makes it difficult for the operator to recognize which processing point the thread in question is to be assigned to or to be supplied.

The object of the present invention is to provide a method and a device for pulling threads from an axial one Pass-through yarn bodies with an easy-to-use, clearly defined thread path to the machine create that excludes overlapping or touching of the threads. According to the invention, this object is achieved by that the thread is drawn off the outside overhead from the yarn body, passed through this axial passage and is then fed to the workplace for further processing. To achieve a smooth thread run the thread is braked when it is pulled off the thread body.

The thread guidance according to the method is achieved by a thread guide arranged coaxially in the extension of the thread package, which has a central passage which is substantially associated with the axial passage of the package flees. In order to achieve an even run of the thread from the package, the thread guide is at the same time as Thread brake formed. The thread guide is expediently designed like a mushroom and protrudes with its outer circumference the diameter of the package end. This prevents the running thread from pulling layers of thread with it from the package. According to a further feature of the invention, a known ball brake is arranged in the thread guide.

Further details of the invention are described below with reference to the accompanying drawings. Show it

8AD ORIGINAL

209822/0808 /

Fig. I on the creel of a king spinning machine supply bobbins arranged for the production of core yarns with the thread guide according to the invention, seen from the side;

FIG. 2 shows the two-part thread guide designed as a thread brake according to FIG. 1 in section.

Machine frame 1 one for the production of core yarn equipped ring spinning machine, of which only one side is shown in Fig. '1, are vertical along the machine Pillars 2 attached, on the cross members 3 two rows of staple fiber spools 4, 5 hanging by means of hanging brackets 3 ' are stored. The rovings 40, 50 are drawn off tangentially from the bobbins 4, 5 iii in a known manner and fed to the draw-in rollers of the drafting device 8 via guide rods 32, 33.

On a reel table 21 carried by the columns 2, package 6, 7 with continuous threads 60, 70 are arranged, which are fed to the delivery rollers of the drafting system 8 for wrapping with staple fibers. As a carrier for the continuous threads 60, 70 hollow sleeves 61, 7'i are used so that there is an axial passage through the package 6,7. The sleeves 61, 71 with the yarn packages 6, 7 are open tubular mandrels (not shown) attached, which are attached to the reel table 21 via passages. According to the invention the threads 60, 70 are drawn off the outside of the yarn packages 6, 7 overhead, into the axial passage the package 6 or 7 is steered and fed through the passage to the delivery rollers of the drafting device 8. After their exit from the axial passage of the package 6 and 7 guide rods 22 and 24 and 24 and 24 guide the threads 60 and 70.

8AD ORIGINAL

209822/0806

The deflection of the yarns 60, 70 running off the yarn bodies 6, 7 into the axial passage through the yarn bodies formed by the tubular sleeves 61, 71 is carried out by a thread guide 9 which is arranged as an extension of the yarn bodies at their upper end and which is made up of two detachably connected to one another Parts 9 ' ¹ > 92 and has a central passage 93 for the thread 60, 70 (Fig. 2). The thread guide member 9, which is preferably mushroom-like with a view to improved thread guidance, sits on the sleeve 61 or 71 and is held by it so that the central passage 93 is approximately aligned with the passage through the yarn package 6, 7 and the threads 60, 70 be guided in a straight line from the inlet opening of the thread guide element 9 to the deflection rod 22 and 23, respectively. The arrangement of the thread guide element 9 on the sleeves 61, 71 ensures that the thread 60 or 70 drawn off overhead can circulate freely on the outer circumference of the mushroom-shaped thread guide element 9. The expiry of the threads 60, 70 from the yarn packages 6, 7 and their circulation on the outer circumference of the thread guide element 9 is favored by the fact that the thread guide duct has a larger diameter at its widest point than the end of the thread package and thus protrudes beyond it.

In order to give the threads 60, 70 the tension required for a trouble-free process, they are on their way braked by the package 6, 7 to the drafting device 8. A ball 94 is used as braking means, which is in an extension of the central passage 93 of the thread guide 9 is mounted freely movable. Such ball brakes are from multiple wire twisting devices known (German Offenlegungsschrift 2.005.223). The division of the thread guide organ 9 makes it possible to replace the ball 94 mounted in its interior and thus the braking force of the respective Adjust the strength of the thread. When removing very thin threads

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of the yarn packages 6, 7, however, is already sufficient Friction of the thread on the outer circumference of the thread guide 9 to give the thread the required tension. In these cases, you can therefore rely on storage a cone brake 94 in the thread guide 9 is dispensed with v / earth.

Of course, however, a different arrangement and design of the devices for thread guidance and braking is also possible possible. So the thread guide 9 can have a shape other than the mushroom-like shape shown, for example that of a hemisphere, and it can be made in one piece. A one-piece Thread guide will be used especially when instead of a thread brake included in the thread guide element 9, for example a thread brake of a known type on the The outlet of the thread 60 or 70 from the package 6, 7 is arranged and attached to the reel table 21.

The method according to the invention of pulling off threads from yarn packages with an axial passage was illustrated using the example the core yarn production on ring spinning machines. However, it is neither on these machines nor on the core yarn production limited with continuous threads, but can be used with advantage on all machines that use yarn of any kind are submitted for further processing, apply. The package can also be arranged horizontally if the type of creel or the location of the processing point so requires or appear expedient leaves.

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Claims (6)

P + Gm 70/422 Claims A method for drawing threads from packages having an axial passage and a Further processing machine are presented, thereby characterized in that the thread is drawn off the outside overhead from the package, through this axial Passage is passed through and then fed to the workplace for further processing. 2. The method according to claim 1, characterized in that that the thread is braked when it is pulled from the yarn body. 3. Device for performing the method according to claims 1 and 2, characterized by a coaxial in Extension of the yarn package (6, 7) arranged thread guide (9) »which has a central passage (93), which is essentially aligned with the axial passage of the package (6, 7). 4. Apparatus according to claim 3, characterized in that the thread guide (9) at the same time as a thread brake is trained. 209822/0806 5. Device according to claims 3 and 4 »characterized in that the thread guide member (9) is mushroom-like is and protrudes with its outer circumference the diameter of the end of the package (6, 7), 6. Apparatus according to claim 4, characterized in that that in the Padenleitorgan (9) a known ball brake (94) is arranged.