EP3059339A1 - Double function fixing element for fixing a spin ring and ring holder on the ring bank of a ring spinning frame or ring twisting frame - Google Patents

Abstract

The invention relates to a device comprising a spinning ring (1), a ring holder (2) and at least one fastening element (3) for attachment to a ring rail of a ring spinning or ring twisting machine. The ring holder (2) can be aligned to a spindle of the ring spinning or ring twisting machine independently of the spinning ring (1) with the fastening element (3) on the ring rail. The spinning ring (1) can be fastened to the ring holder (2). The device is characterized in that the spinning ring (1) with the fastening element (3) can be fastened to the ring holder (2) which is fixed on the ring rail.

Description

The invention relates to the attachment of a spinning ring on the ring rail of a ring spinning or ring twisting machine.

In a ring spinning or ring twisting machine, the rotation of the thread is effected by a ring traveler rotating on a spinning ring about a spindle. To achieve high productivity to high speeds of the ring traveler on the spinning ring are required, which despite appropriate choice of material and processing leads to a certain wear of these components. In addition, it is necessary to achieve good thread and bobbin qualities, especially at high ring traveler speed, that the ring traveler rotates the spindle as centrally as possible. Finally, the optimum diameter of the ring traveler track hangs around the spindle and the like. from the type of yarn to be processed, so e.g. in a lot change on the ring spinning machine from a coarse to a fine yarn of e.g. 42 mm to 38 mm.

Since a ring spinning or ring twisting machine has a very high number of spindles, omitted for technical and economic reasons to provide directly to the ring rail fastening references to each spindle, but leaves for the attachment of the spinning ring on the ring rail a certain amount of play for aligning the spinning ring to its associated spindle too. Nevertheless, in order to be able to exchange the spinning ring as easily and quickly as possible, for example when changing batches or in the event of excessive wear, two-part designs are widely used in the prior art. In these, the spinning ring is not attached directly to the ring rail, but its attachment to the ring rail is mediated by an intermediate ring holder. In this case, this ring holder, for example, be first attached independently of the spinning ring on the ring rail, after which the spinning ring is inserted into the ring holder. This two-part design also has the advantage that only then of its dimensions very compact spinning ring made of high quality materials or must be hardened or coated in a special way.

Such systems beat eg the DE 42 12 508 A1 , the DE 42 25 137 A1 and the DE 18 14 145 A in front. In the first two systems, a ring holder is first aligned with the spindle and fastened to the ring rail by means of screws. In the DE 42 12 508 A1 is between the ring holder and spinning ring a quick coupling element, such as an elastomeric intermediate ring, provided so that the spinning ring can be snapped into a central opening of the ring holder and is held there by clamping the elastomeric intermediate ring. The DE 42 25 137 A1 With respect. This solution, however, to the disadvantage that the elastic retention force of the intermediate ring from the room climate in the spinning, z. B. of moisture and temperature, can be so severely impaired that the holding force of the connection gradually decreases.

To improve the beats DE 42 25 137 A1 Therefore, before to provide the spinning ring at its lower part with an external thread, with which it can be screwed into a matching internal thread of the central opening of the ring holder. But even this solution is not without problems. Because on the one hand has such a direct screw due to the choice of material or hardening or coating of the spinning ring only a limited holding force, so can solve unintentionally by the burden of the spinning ring during spinning or twisting, which is exacerbated by contamination of the thread during the change operations , On the other hand, in order to have at least the minimum holding force required, the internal thread must be designed with several thread pulls, which considerably increases the overall height of the spinning ring and, because of its high-quality material, its costs.

The DE 18 14 145 A discloses a system of a ring holder and a spinning ring, which can be arranged on the ring holder and fixed together with this by means of fastening means each consisting of a screw and an associated lock nut on the ring rail is fixed. In this case, the ring holder is fastened by means of the fastening device initially movable transversely to the mounting axis on the ring rail. Subsequently, the spinning ring is placed on the ring holder. Thereafter, the ring holder is aligned with the spinning ring by means of the fastening device and fixed to the ring rail by tightening the lock nut and the screw. To replace the spinning ring therefore a release of the fastening device is required, whereby the orientation of the system is lost.

Based on the prior art, it is an object of the present invention to provide an attachment of a spinning ring to the ring rail of a ring spinning or ring twisting machine, which allows a compact and inexpensive spinning ring, which can be aligned to the spindle on the ring rail fastened and easily and quickly replaceable ,

This object is achieved by a device comprising a spinning ring, a ring holder and a fastener for attachment to a ring rail of a ring spinning or ring twisting machine, the ring holder alignable to a spindle of the ring spinning or ring twisting machine independently of the spinning ring with the fastener to the ring rail fastened is, and wherein the spinning ring is fastened to the ring holder, characterized in that the spinning ring with the fastening element can be fastened to the aligned on the ring rail ring holder.

In this case, the inventors have recognized that, if it is designed to be suitable, the fastener with which you can attach the ring holder to the ring rail, for the attachment of the spinning ring on the ring holder, so use in a dual function. This not only saves a fastening component, but also avoids the otherwise often complex in the art and the size of increasing configurations of the connection spider ring to ring holder as the preparation of special grooves, threads or additional intermediate elements such as an elastic ring or springs. Furthermore, the proposed device allows a replacement of the spinning ring without having to align the system of ring holder and new spinning ring again, since the ring holder remains fixed in the aligned state at the ring rail, while the spinning ring can be replaced. The invention results in a total not only a cost, but also very compact, easy to handle system of spinning ring and ring holder, the spinning ring can still be connected safely and quickly and easily replaceable with the ring holder.

Thus, the ring holder is fastened to the fastening element on the ring rail, it is of course necessary that the ring rail is prepared correspondingly corresponding to the fastener. Depending on the design of the fastening element, however, in many cases they are sufficient anyway in the prior art on the ring rail provided fastening receptacles such as certain holes that may still need to have sufficient clearance to align the ring holder to the spindle.

In particular, when used as a fastener standard components such as double screws, bayonet locks or brackets, we obtain a particularly cost-effective solution. The attachment of the spinning ring with a nut on the upper thread of a double screw provides a particularly strong and durable connection, while bayonet and clamp provide the advantage of even faster release and fastening and thus the interchangeability of the spinning ring.

In this case, a double-sided spinning ring can be attached to the ring holder, ie a spinning ring which has a guide rail for a ring traveler at its two axial ends. These spinning rings can be turned over after wear of a guide rail and continue to be used. To attach such a double-sided spider ring on the ring holder the spinnaker ring on the ring holder receiving opening must be designed only suitable for the guide rail and the fastener over the guide rail sufficiently. In the embodiments with twin screw and bayonet this can be done for example by interposed discs. In the clamping devices intermediate washers can also be used or the guide rail cross-brackets are pushed onto an upwardly facing pin of the fastener, or the upper part of the fastener may be formed as a foldable rail on the guide rail.

To increase the holding force, the invention preferably provides that two or more such fasteners are used. Because especially in fast rotating the spindle ring travelers considerable forces are exerted on the spinning ring and ring holder, which can be better absorbed by several distributed over the circumference of the spinning ring-ring traveler combination fasteners. With two and in particular with three uniformly distributed over the circumference fasteners to obtain particularly stable connections of the spinning ring with the ring rail.

In a preferred embodiment, the ring holder has a receptacle, for example in the form of a recess on the periphery of its central opening, into which the lower part of the spinning ring is used accurately. This allows a minimum height and thus the lowest cost of the spinning ring due to the expensive materials. However, if spinning ring and ring holder are less accurate to each other, so also includes a self-centering seat of the spinning ring on the ring holder to the scope of the invention. For this purpose, for example, you can form the lower part of the spinning ring slightly higher and in a wedge shape and then insert it into a corresponding wedge shape in the recording of the ring holder.

The tailor-made or self-centering insertion of the spinning ring, however, does not necessarily take place on the ring holder itself, but can also be mediated by the fastener. For this purpose, however, not only the ring holder, but also the fastener must be aligned in the attachment of the ring holder to the spindle of the ring spinning or ring twisting machine, so that it can serve as a reference for the spinning ring. However, this is readily possible if the seat of the fastener in the ring rail has sufficient clearance to its orientation. Further, then spinning ring and upper part of the fastener must fit or self-centering, e.g. over wedge surfaces, to match each other.

According to a procedural aspect of the present invention, the object mentioned is achieved by a method for attaching a spinning ring and a ring holder by means of a fastener to a ring rail of a ring spinning or ring twisting machine. The method is characterized in that it comprises a first step of fixing the ring holder to the ring rail aligned with a spindle of the ring spinning or ring twisting machine independently of the spinning ring by means of the fastening element and a second step of fastening the spinning ring with the fastening element to the aligned fixed ring holder includes. The individual components spinning ring, ring holder, fastening element and ring rail may preferably be a correspondingly described above component according to one of the preferred embodiments. In contrast to the prior art, the ring holder and the spinning ring are thus independently fixed or fixed such that a release of the attachment and thus a replacement of the spinning ring does not affect the aligned fixation of the ring holder on the ring rail. As a result, the advantages described above can be achieved in the same way.

In the following the invention with reference to an embodiment shown in the drawings and some of its variants will be explained in more detail.

Show it

Fig. 1

in perspektivischer Ansicht als Einzelkomponenten ein erfinderisches System aus Spinnring, Ringhalter und Befestigungselement;

Fig. 2

in perspektivischer Ansicht das zusammengebaute erfinderische System aus Fig. 1 aus Spinnring, Ringhalter und Befestigungselement;

wobei dieselben Bauteile in allen Figuren mit denselben Bezugszeichen bezeichnet sind.

Fig. 1

in perspective view as individual components an inventive system of spinning ring, ring holder and fastener;

Fig. 2

in perspective view of the assembled inventive system Fig. 1 made of spinning ring, ring holder and fastener;

wherein the same components in all figures are denoted by the same reference numerals.

In FIG. 1 are shown in perspective view as individual components an inventive system of spinning ring 1, ring holder 2 and double screw 3a and Spinnringmutter 3b existing fastener 3, which system then in FIG. 2 shown assembled together with the ring traveler cleaner 40. In the assembled state of the ring holder 2 is flat and without clearance on the (not shown) ring rail of the ring spinning or ring twisting machine to prevent the ingress of dirt.

For its attachment to the ring rail a double screw 3a is inserted into the two through holes 23 of the ring holder 2 and guided through a corresponding recess and the ring rail, which is screwed from the bottom of the ring rail from each a nut on the lower thread 31 of the double screws 3a , When screwing the double screw 3a can be secured against turning with a (not shown) in its hexagon socket 34 engaging Allen key. Thus, in the attachment of the ring holder 2 to its (not shown) through its central opening 21 reaching spindle can be aligned, have the through holes 23 of the ring holder 2 and / or the recesses of the ring rail sufficient clearance.

If it is necessary to dispense with the nuts on the underside of the ring rail, the recesses of the ring rail can also be provided directly with an inner thread corresponding to the lower thread 31 of the double screws 3a. In this case, the necessary for the alignment of the ring holder 2 game only from the through holes 23 of the ring holder 2 are provided. The tightening of the double screw 3a takes place by means of a (not shown) in its hexagon socket 34 engaging Allen wrench.

After attachment and thus fixation of the ring holder 2 on the ring rail of the spinning ring 1 is inserted with its annular projecting base 12 in the central opening 21 of the ring holder 2 surrounding recess 22 of the ring holder 2. Lower part 12 and recess 22 are made to fit each other, so that the spinning ring 1 rests flat and without clearance on the ring holder, so that no dirt can penetrate and the spinning ring 1 takes over the alignment of the ring holder 2 to the spindle. The tailor-made design makes it possible to make the lower part 12 very thin, so that the material costs for the spinning ring can be minimized. By screwing the spinning ring nuts 3b on the upper thread 33 of the double screws 3a, the spinning ring 1 is finally firmly connected to the ring holder 2.

Finally, in the right part of FIG. 1 nor an alternative and depending on machine equipment more cost-effective to manufacture variant 3a 'of the double screw 3a shown. Like the twin screw 3a, the variant 3a 'also has the hexagon socket 34', the upper thread 33 'and the lower thread 31'. While in the double screw 3a, however, their radially projecting central part 32 secures the ring holder 2 on the ring rail, this is omitted in the variant 3a '. As a result, the variant 3a ', as compared with the double screw 3a, are made of a thinner material rod and requires fewer Fräsarbeitsgänge. To secure the ring holder 2 on the ring rail, a separate intermediate ring 32 'is required for the variant 3a', which functionally replaces the middle part 32 in the double screw 3a.

While in the in the Figures 1 and 2 shown embodiment of the spinning ring 1 is designed only on one side, so only in its upper part contains a guide rail 11 for a (not shown) ring travelers, can attach in a similar manner, a double-sided spinning ring on the ring holder. For even the slight radial projection of a guide rail 11 is suitable for clamping by a suitably ausgestaltetes cover element, which in the execution of Figures 1 and 2 For example, be used as a washer between the middle part 32 and spider ring nut 3b and then cover a larger sector of the guide rail 11.

As an alternative to the upper thread 33 and the spinning ring nut 3b can be used without tools operable clamping or snap fasteners, which may have a slightly lower holding force compared to the screw, but are faster solvable and fastened. Thus, e.g. instead of the upper thread 33, this area can be made corrugated to accommodate a spring-loaded clip instead of the spider ring nut 3b, or this upper area is used as a vertical axis of rotation for a pivotable on the projection 12 of the spinning ring 1 element resiliently against the side wall 13 of the Spinnrings 1 is supported. But other solutions such as a pivotable about a horizontal axis at the top of the fastener snap device are within the scope of the invention.

Instead of the precisely fitting flat design of projection 12 of the spinning ring 1 and recess 22 of the ring holder 2, these elements can also be provided with mutually corresponding wedge surfaces. Thus, the manufacturing tolerances of the spinning ring 1 and ring holder 2 relative to each other can be somewhat relaxed, although the height of both elements is somewhat increased by the inclined surfaces.

Although the inventive attachment of a spinning ring to the ring rail of a ring spinning or ring twisting machine has been described in the foregoing only in certain variants, it is clear to those skilled in the art that the individual embodiments both largely freely combined with each other and can be used individually and also other variants are possible , Thus, instead of using a hexagon socket 34, the double screw 3a can also be equipped with the same external hexagon as the spider ring nut 3b, so that the same tool can be used for screwing both elements together.

Further, for the sake of completeness, it should be pointed out that the indefinite article does not exclude that components designated by it can not also be present multiple times. Likewise, the description of a particular component does not necessarily mean that its functions could not be distributed among several alternative components, or that the functions of several described components could not be grouped together.

Claims (6)

Device comprising
a spinning ring (1),
a ring holder (2) and
at least one fastening element (3) for attachment to a ring rail of a ring spinning or ring twisting machine,
wherein the ring holder (2) alignable to a spindle of the ring spinning or ring twisting machine regardless of the spinning ring (1) with the fastening element (3) is fixable to the ring rail, and
wherein the spinning ring (1) is attachable to the ring holder (2),
characterized,
in that the spinning ring (1) can be fastened with the fastening element (3) to the ring holder (2) fixed on the ring rail. Apparatus according to claim 1, characterized in that the fastening element (3) comprises a double screw (3a), a bayonet closure or a clamp. Apparatus according to claim 1 or 2, characterized in that the spinning ring (1) has at its two axial ends a guide rail (11) for a ring traveler. Apparatus according to claim 1 or 2, characterized in that the spinning ring (1) on the ring holder (2) has a custom-fit or a self-centering seat. Apparatus according to claim 1 or 2, characterized in that the spinning ring (1) on the fastening element (3) has a custom-fit or a self-centering seat. Method for fastening a spinning ring (1) and a ring holder (2) by means of a fastening element (3) on a ring rail of a ring spinning or ring twisting machine,
characterized in that
the method comprises
a first step of the to a spindle of the ring spinning or ring twisting machine independent of the spinning ring (1) aligned fixing the ring holder (2) on the ring rail by means of the fastener (3), and
a second step of attaching the spinning ring (1) to the fastener (3) on the aligned fixed ring holder (2).

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