DE1115622B - Turntable for placing fiber slivers in sliver cans of spinning preparation machines - Google Patents

Description

The invention relates to a turntable for depositing slivers in sliver cans Spinning preparation machines with one from the entry point of the sliver in the center to the The lower exit point at the outer edge is inclined and avoids a sharp deflection at the exit Roving channel.

All of the turntables known so far have a sliver guide channel that guides the sliver partly with sharp deflections of the underlying spinning can, which leads to considerable Delays give cause.

In the known turntable of the type mentioned at the outset, the lower surface of the turntable presses the turns of the sliver already deposited in the can downwards. This area was as Helical surface designed to exert a certain wedge effect on the deposited turns. The guidance of the tape in the canal itself was by no means gentle, but also showed one rather sharp deflection from the radial to the tangential direction of the channel. Furthermore are Turntable with a straight, downwardly outwardly extending, tapered channel known in which Instead of the screw surface mentioned, a laterally expanding opening is provided at the outlet end was, whereby an undesired kinking of the tape was not avoided here either.

Since with modern spinning machines the slivers are delivered at 100 to 200 m / min Turntable with the previously usual, radial guide channel and the aforementioned sharp deflection points no longer usable. Such high centrifugal forces occur, especially at the sharp deflection points on that rapid disintegration of the sliver occurs. In addition, the known designs of the turntable no longer fill the jugs properly because the radial The speed component of the belt is so great that it is thrown over the edge of the can will. Furthermore occurs in a non-uniformly curved channel through the additional Shifting the fibers among one another reduces the cohesion of the ligament, which at further processing is of very detrimental importance.

The invention is intended to avoid these disadvantages. The invention consists in that the center line of the Guide channel is a helical line whose semicircle has a diameter that is approximately the same is the distance of the lower opening point of the channel from the axis of the turntable.

Turntable for depositing

of slivers in sliver cans

of spinning preparation machines

Applicant:

Actiengesellschaft Joh. Jacob Rieter & Cie., Winterthur (Switzerland)

Representative: Dr.-Ing. R. K. Löbbecke, patent attorney, Berlin-Zehlendorf, Neue Strasse 6

Claimed priority: Switzerland of February 28, 1958

Werner Naegeli, Winterthur (Switzerland), has been named as the inventor

This training has the advantage that the individual fibers or fiber groups as a result of the constant The inclination and curvature of the helical line not only no longer shift towards each other, but move with each other a small amount of deflections transfer the tape in a tangential run-out direction, the one Tape unloading at high speeds is only guaranteed to be flawless in the first place.

In the drawings, an embodiment of the turntable according to the invention is shown, and although shows

1 shows a perspective illustration and FIG. 2 shows a plan view of the turntable.

The per se known delivery roller pair 1 delivers the sliver (not shown) to the center point 2 of the upper opening 3 of the guide channel 6, which is arranged in a perpendicular to the axis of rotation of the turntable 4 Flange 5 lies. From the flange 5 extends the tubular and a sharp deflection avoiding Guide channel 6 down and has its mouth on the outer edge of the plate 7. One Connecting rib 8 gives the channel greater stability. At the edge of the plate 7 there is one cylindrical bead 9, which carries a ring gear 10 on the outside and, as usual, by a (not shown) Worm wheel is rotated. The cross-section of the channel 6 is circular and tapers downwards, like the circles 12 indicated on the center line 11

109 709/53

and 13 show. The center line 11 itself describes a helical line, the semicircle y of which has a diameter which is approximately equal to the distance R of the opening point of the channel from the axis of rotation of the turntable.

Claims (1)

PATENT CLAIM: Turntable for depositing slivers in spinning cans on spinning preparation machines with a guide channel inclined from the entry point of the sliver in the center to the lower exit point on the outer edge and avoiding a sharp deflection at the exit, characterized in that the center line (11) of the guide channel (6) has a Helical line whose semicircle iyj has a diameter which is approximately equal to the distance (R) of the lower opening point of the channel (6) from the axis of rotation of the turntable (4). Considered publications:
German Patent No. 635 217;
U.S. Patent No. 2,770,016. 1 sheet of drawings