TW201700806A - Double function securing element for securing a spinning ring and ring holder onto the ring rail of a ring spinning 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 securing element (3), for securing onto a ring rail of a ring spinning or ring twisting frame. The ring holder (2) can be fixed by the securing element (3) onto the ring rail whilst being aligned to a spindle of the ring spinning or ring twisting frame independently of the spinning ring (1). The spinning ring (1) can be secured onto the ring holder (2). The device is characterised in that the spinning ring (1) can be secured by the securing element (3) onto the ring holder (2) fixed aligned on the ring rail.

Description

Dual-function fastening element for fastening a spinning ring and a steel collar to a ring neck on a ring spinning machine or a ring twister

The present invention relates to fastening a spinning ring to a ring body of a ring spinning machine or a ring twisting machine.

In a ring spinning machine or a ring machine, the yarn is rotated by a bead ring that rotates around the spindle on a spinning ring. In order to achieve high productivity, the bead ring on the spinning ring is necessarily high speed, which results in a quantitative wear of one of the components, even if the material and treatment are properly selected. In addition, in order to achieve good yarn and spool quality (especially at high travel speeds) it is necessary to rotate the traveler around the spindle as much as possible. Finally, the optimum diameter of the bead path around the spindle depends, in part, on the type of yarn to be treated, for example, when the ring spinning machine is changed from a coarse yarn to a fine yarn in batches, the diameter should be ) 42mm reduced to 38mm.

When a ring spinning machine or a ring twister has a very large number of spindles, for technical and economic reasons, each spindle has no attached reference directly on the steel collar, but for spinning The collar is fastened to the steel collar and provides a certain amount of clearance to align the spinning collar with respect to the associated spindle of the spinning ring. However, in order to replace the spinning ring as easily and quickly as possible (example For example, for batch replacement or in the case of significant wear, a two-part specific example is widely proposed in the prior art. In the latter, the spinning collar is not fastened directly to the steel collar but is fastened to the steel collar by means of an interconnecting steel collar. For example, the steel collar can be first fastened to the steel collar independently of the spinning collar, after which the spinning collar is inserted into the steel collar. This two-part design also has the advantage that only the spinning ring, which is extremely tight in size, must be made of a high quality material or must be hardened or coated in a specific manner.

Systems of this kind are proposed in, for example, DE 42 12 508 A1, DE 42 25 137 A1 and DE 18 14 145 A. In the first two systems, first, the steel collar is aligned with respect to the spindle and the steel collar is fastened to the steel collar by screws. In DE 42 12 508 A1, a quick coupling element is provided between the steel collar and the spinning collar, such as providing an elastomeric intermediate collar so that the spinning collar can engage into the central opening of the steel collar and The intermediate middle collar of the elastomer is held here by clamping. However, this solution of DE 42 25 137 A1 has the disadvantage that the elastic holding force of the intermediate ring can be significantly influenced by the atmospheric environment (for example humidity and temperature) in the spinning mill, so that the holding force of the connection is gradually reduced. small.

In order to improve this, DE 42 25 137 A1 proposes to provide a spinning ring with external threads on the lower part, by means of external threads, the corresponding internal thread of the spinning collar can be screwed to the central opening of the steel collar. in. However, this solution is not without problems. On the one hand, this direct screw connection only provides a limited holding force due to the hardening or coating of the selected material or the spinning ring, and this direct screwing due to the load on the spinning ring during spinning or twisting The connection may unintentionally become disconnected, which may get worse as dirt gets into the threads during the replacement procedure. On the other hand, the internal thread must be designed with a number of turns of thread to at least provide the minimum required holding force, which increases the structural height of the spinning ring and is therefore also attributed to the required high quality material. Increase its cost.

DE 18 14 145 A discloses a system consisting of a steel collar and a spinning collar, the spinning collar can be arranged on a steel collar and the spinning collar can be aligned to the steel on the steel ring by means of fastening means The collars are secured together and the fastening means consists of screw elements and associated locking nuts. The steel collar is first movably fastened to the steel collar by means of fastening means transversely to the fastening shaft. The spinning steel collar is then placed on the steel collar. The steel collar is then aligned with the spinning collar by means of a fastening device and the steel collar is secured to the steel collar by tightening the locking nut and screw elements. In order to replace the spinning ring, it is necessary to loosen the fastening device and thus lose the alignment of the system.

Based on the prior art, the object of the present invention is to propose fastening a spinning ring to a ring body of a ring spinning machine or a ring twisting machine, which provides a compact and inexpensive spinning ring which can be spun The yarn collar is fastened to the steel collar and aligned with respect to the spindle, and the spinning collar can be replaced simply and quickly.

This object is achieved by a device for fastening to a ring body of a ring spinning machine or a ring twisting machine comprising a spinning ring, a steel collar and fastening elements, wherein the steel collar can be fastened to The fastening element on the steel collar plate and at the same time independent of the spinning ring to the spindle of the ring spinning machine or the ring twisting machine, and wherein the spinning ring can be fastened to the steel collar, It is characterized in that the spinning collar can be fastened by fastening elements to a steel collar that is aligned and fixed to the steel collar.

The inventors have recognized that as long as it is suitably configured, the fastening elements for fastening the steel collar to the steel collar can also be used to fasten the spinning collar to the steel collar, ie It has dual functions. In this way, it is not only possible to avoid having a fastening assembly, but it is also possible to avoid the configuration of connecting the spinning collar to the steel collar, which configuration is often highly complex and increases in the prior art. Structure size, such as special grooves, threads or additional intermediate elements such as elastic collars or springs. In addition, the proposed device makes it possible to replace the spinning ring without having to realign the system consisting of a steel collar and a new spinning collar, because the steel collar is still aligned while the spinning collar is being replaced. The state is fixed to the steel collar. The present invention not only provides an inexpensive system, but also provides a very compact, easy to handle system consisting of a spinning collar and a steel collar, wherein the spinning collar can be securely and quickly attached to the steel collar and is easily replaceable.

In order to fasten the steel collar to the fastening elements of the steel ring, it is of course necessary to prepare the steel collar accordingly for the fastening elements. However, depending on the design of the fastening element, in many cases a fastening mount (such as some drilled holes) already provided on the steel collar in the prior art is sufficient, which may need to have sufficient clearance to Used to align the steel collar to the spindle.

In particular, a particularly inexpensive solution is achieved if standard components such as twin-screws, bayonet closures or clamps are used as fastening elements.

In this case, the nut that fastens the spinning ring to the upper thread of the twin screw provides a particularly strong and long-lasting connection, while the bayonet closure and the clamping connection have the advantage of even faster release and fastening. And makes it easy to replace the spinning ring.

Thus, the double-side spinning ring (i.e., the spinning ring with the guide of the wire loop at both axial ends) can also be attached to the steel collar. After the rails are worn, the spinning collars can be turned over and continue to be used. In order to attach the double-sided spinning collar to the steel collar, the opening of the spinning collar on the receiving steel collar only needs to be configured to fit the rail and the fastening elements need to be sufficiently fastened to the rail . In a specific example with a twin screw and bayonet closure, this can be performed, for example, by an intermediate insertion disc. In the case of a clamping device, an intermediate disk can also be used, or the clamp can be pushed, which is fastened to the guide rail on the pin on the direction of the fastening element, or the upper part of the fastening element It can be designed as a clamp that can be folded onto the rail.

In order to increase the holding strength, according to the invention, two or more such fastening elements are used. In particular, in the case of a rapid rotation of the traveler around the spindle, considerable force is applied to the spinning ring and the steel collar, which can be tightly distributed around the circumference of the spinning collar/bead ring assembly. The solid component absorbs better. A particularly stable connection between the spinning ring and the steel ring plate is achieved by having two fastening elements which are evenly distributed around the circumference.

In a preferred embodiment, the steel collar includes, for example, a mounting table in the form of a groove on the periphery of the central opening into which the lower portion of the spinning collar is inserted for precise fit. This makes it possible to have a minimum structural height of the spinning ring and thus a minimum cost (due to the high cost of the material). However, if the spinning ring and the steel collar are to be operated relative to one another with less precision, the self-centering positioning of the spinning collar on the steel collar is also formed within the scope of the invention. To this end, for example, the lower portion of the spinning collar can be designed to be slightly taller and wedge-shaped and subsequently inserted into the corresponding wedge shape in the mounting of the steel collar.

However, it is not necessary to perform a precise fit or self-insertion of the spinning collar on the steel collar itself, but can also be performed by fastening elements. For this purpose, not only the steel collar, but also the fastening elements need to be aligned with the spindle of the ring spinning machine or the ring twister when tightening the steel collar, so that it can be used as a spinning ring. Reference point. However, this is easy to achieve as long as the fastening elements have sufficient clearance in the steel collar for their alignment. Furthermore, the spinning ring and the upper part of the fastening element must then be adapted to one another precisely or in a self-centering manner (for example via a wedge surface).

According to one aspect of the method of the present invention, the above-mentioned purpose is achieved by a method of fastening a spinning ring and a steel collar to a steel ring plate of a ring spinning machine or a ring twisting machine by means of fastening elements. Standard. The method is characterized in that it comprises: a first step which is independent of the spinning collar by means of fastening elements aligned with the spindle of the ring spinning machine or the ring twisting machine The steel collar is secured to the steel collar; and a second step is to secure the spinning collar to the aligned fixed steel collar by the fastening element. The individual components of the spinning ring, the steel collar, the fastening element and the steel collar may preferably be the components described above in accordance with one of the preferred embodiments. Different from the prior art, the steel collar and the spinning collar are fixed or fastened independently of each other, so that the loosening of the spinning collar and the replacement of the spinning collar do not affect the steel collar in the steel collar The alignment on the top is fixed. In this way, the aforementioned advantages can be achieved in the same manner.

In the following, the invention will be explained in more detail with reference to example specific examples illustrated in the drawings and several variants thereof.

In the latter, FIG. 1 shows, in a perspective view, a system consisting of a spinning ring, a steel collar and a fastening element according to the invention as individual components; FIG. 2 shows a perspective view of FIG. 1 according to the invention. An assembled system consisting of a spinning collar, a steel collar and fastening elements; wherein in all figures the same components are denoted by the same reference numerals.

Figure 1 shows, in a perspective view, a system consisting of a spinning ring 1, a steel collar 2 and a fastening element 3 consisting of a twin screw 3a and a spinning collar nut 3b according to the invention as individual components, The system is then shown in FIG. 2 as being assembled with the bead cleaner 40. In the final assembled state, the steel collar 2 is placed flat and there is no intermediate space on the ring plate of the ring spinning machine or the ring twister (not shown) to prevent dirt from penetrating.

In order to fasten to the steel ring plate, the twin screw 3a is inserted into each of the two through holes 23 of the steel collar 2 and guided through the corresponding groove of the steel collar, and thereafter from the steel collar The surface screws the nut onto the lower thread 31 of the twin screw 3a. When the hex wrench (not shown) engaged in the hexagonal socket 34 of the twin screw 3a is screwed together, the rotation of the twin screw 3a can be prevented. During the fastening process, in order to ensure that the steel collar 2 can be aligned with its (not shown) spindle extending through its central opening 21, the through hole 23 of the steel collar 2 and/or the recess of the steel collar The slot has sufficient clearance.

If the nut is not provided on the lower side of the steel collar, the internal thread corresponding to the lower thread 31 of the twin screw 3a can be directly provided for the groove of the steel collar. In this case, only the through hole 23 of the steel collar 2 provides the clearance required to align the steel collar 2. The twin screw 3a is tightened by means of an Allen key (not shown) engaged in the hexagon socket 34 of the twin screw 3a.

After the steel collar 2 is fastened and thus fixed to the steel collar, the annular outer lower portion 12 of the spinning collar 1 enters the recess of the steel collar 2 around the central opening 21 of the steel collar 2 Insert the spinning ring 1 in the way of 22. The lower portion 12 and the recess 22 are machined to precisely fit each other such that the spinning ring 1 is pressed flat and there is no intermediate space on the steel collar, making the dirt impermeable and the spinning collar 1 makes the steel collar 2 Aligned with respect to the spindle. The precise design makes it possible to make the lower portion 12 extremely thin, so that the material cost of the spinning ring can be minimized. By spinning the spinning ring nut 3b onto the upper thread 33 of the twin screw 3a, the spinning ring 1 is finally firmly connected to the steel collar 2.

Finally, on the right side of Figure 1, a further alternative variant 3a' of the twin screw 3a is shown, which is cheaper to produce depending on the machine. Like the twin screw 3a, the variant 3a' also includes a hexagon socket 34', an upper thread 33' and a lower thread 31'. Although in the case of twin screw 3a, its diameter The outwardly extending intermediate portion 32 secures the steel collar 2 to the steel collar, but this feature is omitted in the variant 3a'. In this way, the variant 3a' can be made of a material rod that is thinner than the twin screw 3a and requires less milling. In order to fasten the steel collar 2 to the steel collar in the variant 3a', a separate intermediate collar 32' is required which functionally replaces the intermediate portion 32 of the twin screw 3a.

Although in the specific example shown in Figs. 1 and 2, the spinning collar 1 is formed only on one side, that is, the guide rail 11 containing only the traveler (not shown) in the upper portion thereof, but double The side spinning collar can also be fastened to the steel collar in a similar manner. Since only a slight radial extension of the guide rail 11 is suitable for being clamped by a suitably designed cover element, it can be inserted, for example, as an intermediate portion 32 with a spinning steel collar snail in the embodiment of Figures 1 and 2 The intermediate disk between the caps 3b can then cover a larger section of the rails 11.

As an alternative to the upper thread 33 and the spinning collar nut 3b, gripping or snap fasteners can be used, which can be activated even without tools, which may have a slightly lower threaded connection Retention strength but can be released and fastened more quickly. Thus, for example, instead of the upper thread 33, this area can be designed to be slotted to receive the spring loaded clamp instead of the spinning ring nut 3b, or to use this upper region as a spinning collar 1 The vertical axis of rotation of the element pivoting on the extension 12, the extension 12 is supported on the side wall 13 of the spinning ring 1 in a spring-like manner. However, other solutions are also within the scope of the invention, such as a snap device that can pivot about a horizontal axis on the upper portion of the fastening element.

Instead of the precise flat fit of the outer circumference 12 of the spinning ring 1 and the recess 22 of the steel collar 2, the elements may also have wedge surfaces corresponding to one another. In this way, the manufacturing tolerances of the spinning ring 1 and the steel collar 2 relative to each other can be somewhat loose, since the structural height of the two elements is slightly increased by means of the inclined surface.

Although only specific variants of the means for fastening a spinning ring to a ring plate of a ring spinning machine or a ring twisting machine in accordance with the present invention are described above, it will be apparent to those skilled in the art that individual embodiments are They can generally be freely combined with each other and can also be used individually, and other variants are also possible. Therefore, the twin screw 3a can be provided with an inner hexagon 34 for screwing, and also has the same hexagonal shape as the spinning steel collar nut 3b, so that the same tool can be used for both components. Threaded connection.

In addition, for the sake of completeness, it should be noted that the indefinite article does not exclude or provide a plurality of components that are represented by the indefinite article. Also, the description of a particular component does not necessarily mean that its function is not applicable to a plurality of alternative components, or the functions of the plurality of described components may not be combined into a single component.

1‧‧‧Spinning steel collar

2‧‧‧Steel collar

3‧‧‧ fastening elements

3a‧‧‧ twin screw

3a'‧‧‧ variant

3b‧‧‧Spinning steel collar nut

11‧‧‧ Guide rail

12‧‧‧Extensions

13‧‧‧ side wall

21‧‧‧Center opening

22‧‧‧ Groove

23‧‧‧through hole

31‧‧‧ lower thread

31'‧‧‧ Lower thread

32‧‧‧ middle part

32'‧‧‧Intermediate steel collar

33‧‧‧Upper thread

33'‧‧‧Upper thread

34‧‧‧ hex socket

34'‧‧‧ hex socket

Claims (6)

A device for fastening to a ring spinning machine or a ring neck of a ring twisting machine comprising a spinning ring (1), a steel collar (2) and at least one fastening element (3) wherein the steel collar (2) can be fixed to the steel ring plate by the fastening element (3) and simultaneously aligned to the ring spinning machine independently of the spinning ring (1) Or a spindle of the ring twisting machine, and wherein the spinning ring (1) can be fastened to the steel collar (2), characterized in that the fastening element (3) can be used The spinning ring (1) is fastened to the steel collar (2) aligned on the steel collar. A device according to claim 1, characterized in that the fastening element (3) comprises a twin screw (3a), a bayonet closure or a clamp. A device according to claim 1 or 2, characterized in that the spinning ring (1) has a guide rail (11) of a traveler at both axial ends. A device according to claim 1 or 2, characterized in that the spinning ring (1) is adapted to the steel collar (2) precisely or in a self-centering manner. A device according to claim 1 or 2, characterized in that the spinning ring (1) is adapted to the fastening element (3) precisely or in a self-centering manner. A method for fastening a spinning ring (1) and a steel collar (2) to a ring spinning machine or a ring body of a ring twisting machine by means of a fastening element (3), Characterized in that the method comprises: a first step, which is independent of the spinning steel by means of the fastening element (3) aligned with the spindle of the ring spinning machine or the ring twisting machine Collar (1) the steel collar (2) fixed to the steel collar plate; and a second step of fastening the spinning ring (1) to the aligned fixed steel collar by the fastening element (3) (2 )on.