DD203300A1 - COIL HOSE FOR OBTAINING EASILY RETRACTABLE THREAD RESERVE - Google Patents

Abstract

The spool sleeve according to the invention can be used both in the classical method and in the SRW and high-speed spinning method. The aim and task is to create a bobbin, with which it is possible to form a thread reserve, which is disturbed by no secondary, under or Ueberspulung. The formed thread reserve should not be destroyed during subsequent processing for the textile processing process. According to the invention, the object is achieved by using a bobbin tube for winding synthetic threads with spinning speeds of over 3000 m times min & exp1! to achieve the easily achievable thread reserve, in which a gleichfoermige conical circumferential groove is arranged in the range of the predetermined winding width.

Description

Title of the invention :

Coil sleeve to achieve an easily workable thread reserve

Field of application of the invention ;

The invention relates to a spool-nhülse, which is suitable for winding up by the melt-spinning process produced synthetic threads, preferably of polyamide or polyesters. The bobbin tube can be used for winding speeds over 3000 m . min, with an easily workable thread reserve to be achieved. However, it can also at Aufwindegeschwindigkeiten below 3000 ra. min be used.

Characteristic of the known technical solutions :

It is known to allow the unwinding of synthetic threads on textile machines a continuous work process that the textile sleeves used are provided with a so-called thread reserve, which they have received in the previous winding process.

There are a number of methods that allow the formation of a thread reserve.

The thread reserve is formed by first bespult the sleeve with a basic winding and then outside the winding area sets the reserve of thread through a series of turns of thread. In known sleeves, a slot is arranged at a certain distance from the edge of the sleeve, which is necessary for catching the yarn sheet when hanging up. The thread reserves formed on these sleeves have the disadvantage that the thread reserve overspins the catching roll and makes the separation of thread reserve and catching thread difficult or impossible in the subsequent processing process in the further processing of the silk. Furthermore, a number of devices are known to facilitate the detection of the thread end during subsequent removal of the thread reserve.

Thus, it is provided in DD-PS 106 326, that provides the bobbin with a thread holding device and a thread holding wings, which are arranged at the lower edge on the outside of the sleeve shell.

Coil sleeves, which are provided with additional elements for detecting and anchoring the thread, are often prone to failure and complicated in their production and therefore have not been proven in practice.

Furthermore, it is known that the thread is brought in the bobbin change from a thread holding device from its initial position in the immediate vicinity of the thread catching and cutting zone and through this on the adjacent end of the bobbin over a predetermined, the reserve turns resulting region of the bobbin. (WP 116 025)

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The implementation of this method for applying reserve turns on a bobbin tube for winding endless filaments by means of a winding device in which the yarn is wound on the replaceable bobbin under traversing and lifted out of the traversing device during the bobbin changing operation and guided on a thread holding device requires particularly complicated auxiliary devices, which are susceptible to interference.

Aim of the invention ;

The aim of the invention is to provide a bobbin, which allows the construction of a quality coil winding, the created thread reserve in the textlien processing is quickly and easily accessible. The bobbin tube should be simple in its manufacture and have no additional auxiliary elements «

Presentation of the essence of the invention ;

The object of the invention is to provide a bobbin tube, with which it is possible to form a thread reserve that is disturbed by no secondary, lower or upper coil. The formed thread reserve should not be destroyed during subsequent processing for the textlien machining process.

According to the invention, the object is achieved by providing a bobbin tube for winding synthetic threads with spinning speeds of more than 3000 m. min "is used to obtain an easily workable thread reserve by arranging a uniform conical circumferential groove on the sleeve sheath in the range of the intended winding width.If it is necessary, several conical

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circumferential grooves in the intended winding area on the sleeve jacket be present. You can make the distribution of the circulating Rillan evenly or unevenly. As a material for the production of the bobbin tubes can be wood, paper, plastic or metal use.

The circumferential groove is pressed on the cylindrical sleeve body either by means of known suitable tools or devices, scratched, etched, milled or cut with laser beams.

The attached figure shows a side view of the bobbin tube.

The sleeve of the invention is made of pressed paper »metal or plastic material and has the shape of a cylinder. On the sleeve jacket 1 of the cylinder, the circumferential conical groove 3 is disposed within the in / ickelbreite 2. At the beginning of the winding process, the thread reserve 4 is placed outside of the winding width 2 on the sleeve casing 1 by a plurality of turns.

Exemplary embodiment :

On a spinning-stretch üVinde machine is with a winding speed of 3400 m. min worked. For winding the coils of the invention are used.

With a 4-up winding per bobbin holder 4 threads are caught by the circumferential conical groove 3, thereby detected by the traversing and at the same time distributed by a mechanical device on the 4 sleeves.

Since the circumferential conical groove 3 is mounted within the winding width 2, the basic winding over-winds the catching coil, in the subsequent laying of the

Bore reserve reserve roll 4 is placed outside the winding width 2 and is no longer disturbed by the Fangwickel. All 4 coils of a 4-fold winder can be supplied with the same exact reserve of thread, while after the usual operation, ie Fangwickel outside the winding width, the thread reserve is 'bothered' in 25 % of all coils, the thread reserve is unusable.

Claims (3)

Idb'i'i 1 Invention claims: 1, bobbin tube to achieve an easily workable thread reserve, especially when winding synthetic threads with SjDinngeschwindigkeiten over 3000 m. min " , characterized in that a uniform, conical circumferential groove (3) on the sleeve shell (1) in the area of the intended winding width (2) is arranged. 2. bobbin according to item 1, characterized in that a plurality of uniform, conical circumferential grooves (3) on the sleeve shell (1) evenly or unevenly over the gesarate winding width (2) are arranged distributed · 3. bobbin according to item 1 and 2, gekannzeichnet in that the sleeve body made of durable material, such as wood, paper, plastic or metal. For this 1 sheet drawing