DD206357B1

DD206357B1 - Thread guide chasing device on hollow silk spinning machines

Info

Publication number: DD206357B1
Authority: DD
Publication date: 1987-01-07

Description

zick-zackförmigen Verlauf der Mittelpunktskurve 3 tritt jedoch zwischen dem Mitnehmer 1 und der endlosen Nut 2 ein Spielraum X (Fig. 2) auf. Um nun den Mitnehmer 1 in diesem Bereich exakt an der Außenwandung der endlosen Nut 2 zu halten, findet eine kraftschlüssige Führung des Mitnehmers 1 Anwendung. Der Mitnehmer 1 ist an der Fadenführerstange 5 befestigt, die von den Lagern 17 aufgenommen wird. Ebenfalls mit der Fadenführerstange 5 ist der Fadenführer 6 verbunden. Die Fadenführerstange 5 ist als Schieber eines an ihrem Ende angeordneten Schubgetriebes 9 eingerichtet. Das Schubgetriebe 9 ist mit einem Spannwerk11 versehen. Zwischen der Fadenführerstange 5 und dem um dem Festpunkt 8 schwenkenden Schubgetriebe 9 ist eine Koppel7 eingesetzt zum Ausgleich des Schwenkradiusses. In entsprechender Höhe des Schubgetriebes 9 befindet sich ein Spannwerk11 in Form eines GewichtesHowever, a zigzag course of the center point curve 3 occurs between the driver 1 and the endless groove 2 a clearance X (FIG. 2). In order to hold the driver 1 in this area exactly on the outer wall of the endless groove 2, finds a non-positive guidance of the driver 1 application. The driver 1 is attached to the yarn guide rod 5, which is received by the bearings 17. Also with the thread guide rod 5 of the yarn guide 6 is connected. The yarn guide rod 5 is set up as a slide of a thrust gear 9 arranged at its end. The thrust mechanism 9 is provided with a clamping mechanism 11. Between the thread guide rod 5 and the pivoting about the fixed point 8 thrust gear 9 is a Koppel7 used to compensate for the Schwenkradius. In a corresponding amount of the thrust gear 9 is a clamping mechanism 11 in the form of a weight

Wirkungsweise operation

Die rotierende Exzenterkurve verleiht dem Mitnehmer 1 in der endlosen Nut 2 entsprechend ihres Hubes eine Changierbewegung, welche die am Mitnehmer 1 befestigte Fadenführerstange 5 und der an ihr sitzende Mitnehmer 6 mit ausführen. Der Mitnehmer 1 wird dabei bis nahe der Umkehrstellen formschlüssig in der endlosen Nut 2 geführt. Das über die Koppel 7 mit der Fadenführerstange 5 verbundene Schubgetriebe 9 wird von der als Schieber ausgebildeten Fadenführerstange vorder Umkehrstelle bis zu seiner labilen Stellung geführt und kurz danach dem Spannwerk 11, der jeweiligen Umkehrstelle entsprechend, nach rechts oder links an die Außenwandung der Nut 2 gezogen. Somit ist der Mitnehmer 1 kraftschlüssig und sicher an der Außenwandung der Nut 2 gehalten, und es erfolgt eine spitze Umkehr desselben mit einem, allerdings geringen, BeschleunigungsstoßThe rotating eccentric cam gives the driver 1 in the endless groove 2 according to their stroke a traversing movement, which carry the attached to the driver 1 yarn guide rod 5 and the seated at her driver 6 with. The driver 1 is thereby guided positively close to the reversal points in the endless groove 2. The thrust gear 9 connected via the coupling 7 with the thread guide rod 5 is guided by the trained as a slide yarn guide rod front reversal to its unstable position and shortly thereafter the clamping mechanism 11, the respective reversal point, pulled to the right or left to the outer wall of the groove 2 , Thus, the driver 1 is positively and securely held on the outer wall of the groove 2, and there is a sharp reversal of the same with a, but small, acceleration shock

Das Spannwerk 11 kann anstelle des Gewichtes auch durch Federkraft wirken, wie dies mit Fig.4 dargestellt ist. The clamping mechanism 11 may also act by spring force instead of the weight, as shown with Fig.4.

Claims

Invention claim:

Fadenführerchangiervorrichtung on hollow silk spinning machines whose eccentrically controlled yarn guide laid the hollow silk in parallel winding at low speed on the disk coil, characterized in that the driver (1) positively moving, endless groove (2) at the reversal points a pointed midpoint curve (3) with a margin (X) between the driver (1) and the groove (2), wherein the yarn guide rod (5) slide a arranged at the end of the same push gear (9), which is connected to a clamping mechanism (11).

For this 3 pages drawings

Field of application of the invention

The invention relates to a Fadenführerchangiervorrichtung on hollow silk spinning machines whose eccentric cam-controlled yarn guide laid the hollow silk in parallel winding at low speed on disc coils.

Characteristic of the known technical solutions

For the movement of the thread guide or the thread guide rod known as driver and drive element bolts, sliding blocks, rollers or boats are used, which are guided in the endless groove of an eccentric cam. Under eccentric curves are all double and single curves to understand. Depending on the traversing speed, the known endless eccentric curves are more or less rounded at the reversal points. The Mitnehmermittelpunktskurve must have at the reversal points a rounding of at least half a driver diameter in order to ensure an exact positive engagement. Such rounded reversals are not suitable for winding of hollow silk with parallel winding on disc coils at extremely low traversing and yarn delivery speed and lead to an accumulation of yarn material at the edges of the disk coil and a partial pinching of the hollow silk.

Object of the invention

It is the object of the invention, the use as a filter membrane for medical or chemical purposes hollow core, which is very thin-walled, to move with high quality on the disc coil and thus to avoid damage and flow rates in the subsequent processing of the hollow core of the disc coil.

Explanation of the essence of the invention

The invention has for its object to give the very slow traverse motion a zig-zag flow at the reversal points.

This has been achieved according to the invention by the carrier driving positively, endless groove at the reversal points has a pointed midpoint curve with a margin between the driver and the groove, wherein the yarn guide rod slider is arranged at the end of a push gear, which is connected to a clamping mechanism is.

embodiment

Reference to the exemplary embodiments illustrative drawings, the invention is explained in detail. Show it:

1: a conventional reversal point with rounded Mitnehmermittelpunktskurve

2 shows a reversal point with a zigzag-shaped entrainment center curve;

3: the Fadenführerchangiervorrichtung in front view with weighted thrust gear,

Fig. 4: the Fadenführerchangiervorrichtung with spring-loaded thrust gear.

The driver 1, which is designed as a bolt or roller, runs in the endless groove 2 of an eccentric cam. At the reversal points of the endless groove 2, the center curve 3 runs in a conventional manner with a rounding 4, which corresponds to at least half the diameter of the driver 1 (FIG. 1).

For the winding of hollow silk, a zigzag course of the midpoint curve 3 is required (FIG.

2). The inevitable resulting acceleration shock is portable at the extremely low traversing speed. In this