DE2200868A1 - Head part for a ring spinning or ring twisting spindle - Google Patents

Description

.Head part for a ring spinning or ring twisting

■ spindle ,.

The invention ftezleht look at the bingspinnen odea? -Is Birngzwirnen ixnä ^ concerns in particular the balloonless operation., "In the OCE balloon by means of a Verlängeriiangsstüeks suppressed ₃ that the yarn can not around freely glide around it that is attached to the spindle and aufweistj at its upper end such a molded header.The. This The head part generally has a plurality of radially extending wings ₃ and one embodiment is described in patent specification 1 262 842. As described there, the head part forms a unit with the main body of the extension piece, but the head part can also be a separate part which is attached to the main body of the extension piece, for example by means of a screw, in this way the head part can be easily changed without having to change the whole extension piece.

Regardless of whether the head part is separate or forms a structural unit with the extension piece ₃ , it is usually made of aluminum or another light metal alloy in order to achieve a low weight, since spindles of this type have very high speeds

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operate. It's not uncommon for that Wrap loops of yarn around the head section and, to remove them, the operator uses a knife or another sharp instrument that nicked or otherwise the soft material of the head part can be damaged. The notch can then catch and damage the yarn as it is spun.

The head part for an extension piece of a balloon, loose ring spinning or ring twisting spindle is characterized according to the invention in that the head part at least one surface made of hard, wear-resistant Material as well as several radially rounded wings above a neck section, the largest of which Width or diameter is smaller than that of the wing, but its axial length is the same or larger than that of the wings.

The head part can be made of cast iron or hardened steel or of a softer material, which with is provided with a wear-resistant surface or tempering. This way there is no risk of damage largely avoided by using a knife or other creating instrument and since the head part is separated from the extension piece, the latter can be made of a softer material than before. The inclusion of the neck section below the wings ensures that formed Loops collect on the head section and not on the main body of the extension piece, causing damage the latter is avoided when removing the loops.

Preferably the wings are shaped as in the above, i.e. the edge of each wing describes a curve which down from the point of greatest diameter

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and extends inward. This shaping of the wing supports the hatching of the yarn from one wing to the next ₅ so that a substantially uniform train is maintained in the yarn, resulting in an improved spinning or twisting process.

The length of the neck section ensures that about formed loops appear on the neck portion itself; although this is preferably cylindrical, it may have flat spots around the contact surface decrease between it and the yarn. In either case, the sides are preferably substantially parallel designed j because this simplifies the production, in particular when the head is molded as a whole.

The head part can expediently on the extension piece be screechable and to avoid the risk of entanglement The lower end of the Neck portion preferably has a recess into which the upper end of the extension piece engages. As a result, the head part overlaps the extension piece, and at this point there is a small inward Directional step where the yarn does not get caught.

The invention is explained in more detail below using an exemplary embodiment and the drawing.

Fig. 1 is a perspective view of a Head section separate from the extension with which it is used;

Fig. 2 is a sectional view of the head part and the upper part of the extension piece on which the head part is attached.

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In free the. Figures is the head part with 1 and. da® extension piece: with which it becomes hemxt.zt ; mi.fe 1 denotes, whereby the extension piece is intended to be attached to the upper part of a) frallonlos-eas' spindle (riveted shown) ... For this purpose, the extension piece 2 has a shoulder at the bottom. 3 on '.. Bas headboard 1 b-consists of; Cast iron or hardened »S-taKL lind is made using a. BolzreBS 3 duirch EinsehieaiuherL in a with thread provided Eoesb. (S attached to the tip of the extension piece 2. The hard texture of the head portion 1 prevents damage äucpch a knife adding another sharp instrument _a when yarn loops auoreh the operator be removed. Since the extension piece is not exposed to the risk of such damage It is made of aluminum or some other light metal alloy is.

The invention relates to the head part 1 and will now be explained in more detail. The upper section of the head part has several radial rounded wings 13 which are separated from one another by V-shaped notches 14. As best seen in Figure 2, the edge of each wing describes a curve extending downwardly and inwardly at 15 from a point of greatest diameter 16; it then reverses at Ί ( and extends downwards to a point of smallest diameter immediately below. From there downwards the head part 1 has a neck section 20, the diameter of which is smaller than that of the wings 13, but whose axial length is a little bit The length of the neck portion 20 ensures that any loops will and will not form on the neck

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22-0868

-on the Verlämgerungsstüek _2,... which, as described above, aaas * yleT "softer material consists, ·, and therefore the risk of damage öurch a knife is exposed .. HHE shown .the ;, Halsabs-chriitt is. ! 20 cylindrical _3, however, he icann ^ also in accordance with the extension ex -on flaehungen have to the contact surface with üem yarn;. zm reduce "that" Eopfteil 'can turn produced by PreMOrmung or QMSS> * and developing, the neck from cut 20 parallel sides

Fig. 2 shows a tail of the path, of the 'yarn, which first runs from the wing 13th, then Hm cut the neck off · .. 20 and then on the extension piece 2 ₃ loewor it. . associated spindle is "supplied to the train .in the yarn holding this during the spinning or twisting into contact with the wings is 13. ₃ whereby a balloon formation is suppressed The shaping previously described supports, the sliding of the Garnea of a wing...: on the other hand, whereby a uniform tension in the yarn is maintained, which results in an improved spinning or twisting: The neck section 20. has at its lower end a recess into which the upper end of the extension piece 2 ”. engages so that the neck section 20 engages over the extension piece at 21 and a small step 22 is formed at the foot of the neck section, over which the yarn can run smoothly without being caught.

The shape of the head part leads ^; : to effective spinning or twisting and training as. Part separated from the extension piece with a hard surface, avoids the risk of damage by a knife or other instrument, without the need for the whole. Extension, ie parts 1 and 2 together, to be made from heavier material.

Claims: 209830/0782

Claims (5)

Patent claims: Jl) head part for an extension piece of a balloon-less ring spinning or ring twisting spindle, characterized in that the head part (1) has at least one surface made of hard, wear-resistant material and several radially rounded wings (13) above a neck section (2O) _{5 thereof} largest (r) width or diameter is smaller than that of the wings, but whose axial length is equal to or greater than that of the wings. 2. headboard according to claim 1 ,. characterized, that the edge of each wing (13) describes a curve, which extends downward and inward from the point of greatest diameter and then reverses and descends extends to the point of smallest diameter. 3. Headboard according to claim 1 or 2, characterized in that that the neck portion (20.) has substantially parallel sides .. 4. Head part according to claim 1 to 3 » characterized in that the lower end (21) of the. Neck section has a recess into which the upper end of the extension piece engages. 5. headboard according to claim 1 to 4 ,. characterized, that it is made of cast iron or hardened steel. 209830/0782