DE2409302C3 - False twist device - Google Patents

Description

Drive pulley, bearing on a base plate 11 takes place with bearings 10 and the shaft ends are led out downwards and drrt as drive rollers 9 are designed to bring about the drive via a belt 13.

A holder 16 is also attached to the base plate 11, each above and below of the friction ring 2 an adjusting arm 5 is attached, at the end of which a thread guide 6 is attached in each case. The distance of the thread guide 6 from the holder 16 can be changed so that the used Umschlingungswijikel for the Gam 7 precisely adjusted will you can. A yarn guide slot is also located between the two thread guides 6 8th.

In the embodiment shown, the yarn 7 is fed from above, via the upper thread guide 6, over the inner surface of the friction ring 2 and then over the lower one Thread guide 6, and finally passes through a thread guide tube 12 fastened to the base plate 11.

The friction ring 2 can also be used for the simultaneous false twining of two yarns, whereby one yarn can be twisted counterclockwise and the other yarn clockwise.

The ring can be made of various hard materials, for example agate, glass, ceramic, Spinel, sapphire, oxide ceramics, carbides or other hard materials or surface-coated Materials such as steel with an aluminum oxide coating and the like. The cross section of the ring can be designed in different ways, with FIG. 5 three versions are shown, namely the embodiment with the reference number 2 with a circular cross-section and the others Embodiments with the reference number 14, once with an oval cross-section and the other with square cross-section with rounded corners. As soon as the ring is worn out, it leaves can easily be removed from the device, since the various discs 1, 3, 4 are elastic on the friction ring 2 or 14 are applied.

For this purpose 2 sheets of drawings

Claims (2)

ι U2, the twist is distributed over several flying patent claims: stored rollers, these rollers via a fixed drive roller, fixed support rollers and a magnetic 1. False twist device for texturing tables device are supported. Finally is of the most diverse yarns, with at least one 5 a friction false twist generator known (DT-OS arranged between thread guides, overhung 20 40 749), in which there are three rotationally symmetrical, ring-shaped are seen, which seen by themselves are cantilevered Friction body, where the yarn are stored under one and over em friction wheel angetneben who-wrap angle over the friction ring. Each Friction Nng has a groove in which the is pulled and the ring run between a few support wheels or Antnebsrader. Well known three discs mounted and driven, th false twist devices have the essential characterized in that as a Frik disadvantage that several for the twist distribution tion disk of the ring (2, 14) with circular friction rings must be provided to the or oval cross-section or square necessary angle of wrap. Dar cross section provided with rounded edges 15 also have these known devices is and that the yarn (7) at least once fully the disadvantages outlined above. is constantly wound around the ring (2.14). The invention is based on the object of having 2. Apparatus according to claim 1, characterized by incorrectly identifying high take-off speeds working, that the thread guide (6) to propose adjusting twist device, with the one arms (5) are attached, the distance to the Rota- 20 low device complexity an oreittionsachse of the ring (2.14) is adjustable. bandige precise adjustment of the thread from one stronger or weaker titer and different cross-section to give a uniform Friction is achieved. This object is achieved according to the invention solved that as a friction disc, the ring with a circular or oval cross-section or square Cross-section with rounded edges The invention relates to a false twist device is seen and that the yarn is at least once fully wound for texturing the most varied of yarns, with 30 constantly around the ring.
at least one between thread guides angeord- The invention has the particular advantage that Neten, cantilevered, rotationally symmetrical, the adaptation through precise adjustment of the ring-shaped Friction body, whereby the yarn can be reached at a looping angle, with this A single friction ring is sufficient for a wrap angle over the friction ring. The materials is pulled and the ring between at least 35 for the friction rings are very expensive, so with that three disks mounted and driven. significant cost savings can be achieved. There- The demand for a higher withdrawal speed, that an exact adaptation to the demanded that also enable stretching operations to be carried out under operating conditions, the and to combine texturing processes or to work on the most spinning types of yarn by clicking on the processes, stretching processes and texturing processes * o Components such as wrap angles, material to combine in uniform machines, without between the friction ring, the surface of the ring or the take-off blade always wind on bobbins too slow speed, pretension and the like, worked on, has led to false twist devices that can. There is another major benefit where the thread itself acts as a spindle, d. H. about being left and right turning at the same time one or more friction disks on the circumference can be twisted together 45 threads so that is driven. The disadvantage of this known execution- both threads remain constant and no longer overlap The reason for this is that there is even friction. The used angle of wrap cannot be granted. This is mainly due to multiple wrapping also over 360 ° due to the fact that the raw yarns supplied are inherent, thus an exact adaptation to the type of yarn are not very even. Particularly difficult 50 and the titer can be done. This is rigorous for profiled yarns. Another after- The invention is described in the following description part of this known construction is that exercise explained in more detail on the basis of the examples shown in the drawings as a result of the use of several friction spindles. It shows
the structural effort is considerable, with also being F i g. 1 is a view of a device according to FIG special adjustment devices for the change 55 invention, partly in cross-section,
the wrap angle by adjusting the one F i g. 2 is a side view of FIG. 1, individual spindles must be present to each other. Fig. 3 is a plan view of F ig. 1, In addition, these known embodiments are shown in FIG. 4 an enlarged representation of the execution seldom suitable, retrofitting to an existing shape according to Fig. 1, partly in cross-section, Machines to be grown. 60 and Furthermore, a false frictional twist device F i g. 5 different embodiments for the known (German patent specification 2106 000), in the formation of the friction ring,
drive bushing opposite one another in pairs, as shown in FIGS. 1 to 4, is a frik- sen are provided on which friction rings rest tion ring 2 and 14 between three disks 1, 3 and 4 and these drive bushings are overhung by a type of belt drive, with this embodiment being provided. The drive of these friction rings takes place in the rest of the disks 1, 3 and 4 have a groove 15, gen only through the generated thread tension. With one in which the Friction 2 or 14 runs. In which Another false twist device (DT-OS 22 57 405) shown Ausführungsisbeispiel serves the disc 1 as