DE3932275A1 - YARN REWINDING DEVICE WITH A SPINDLE BEARING CASE FIXED TO A SPINDLE BENCH - Google Patents

Description

The invention relates to a yarn winding device, in particular especially for ring spinning machines with a cylindrical spin dellager housing according to the preamble of claim 1.

It is common practice to have such a spindle bearing housing by clamping on the spindle bench that in the area of Spindle bench and an external thread on the spindle spindle Gergehäuse is applied to which after inserting the Spindle bearing housing from above into the bore of the spindle bank possibly with the interposition of a washer Nut is screwed on, the be above the hole presses the even, flat ring flange against the spindle bench, whereby the spindle bearing housing on the spindle bank in one desired position is set. The spindle shaft can either be arranged in the spindle bearing housing beforehand or subsequently introduced into it.

Furthermore, it is already known (DE-OS 35 43 197), a ring flange-like extension of the spindle bearing housing by means of to be screwed into this bolt by the bolts pass through holes in the spindle bank extend and with the down through the holes end extending through by means of disc springs and in a ring grooves of the bolts inserted retaining rings on the spindle bench are set.

While the former fastening method has the disadvantage has that both threading and that Screwing on a nut with a considerable amount The effort involved in assembly and installation must be met  DE-OS 35 43 197 known type of attachment other bolts for fixing the ring flange to the spin delbank can be used, which is particularly important given the The fact that hundreds of such in a spinning machine Spindle bearing housing are to be arranged, also a high Manufacturing and assembly effort required.

The aim of the present invention is a yarn to wind up winding device of the type mentioned with which the spindle bearing housing is attached to the Spindle bench with little manufacturing and assembly effort is possible without the reliability of the attachment is affected.

To achieve this object, the invention provides that as Fasteners axially displaceable below the hole one with the outside area at the top at the bottom of the spindle Belleville washer, tensioned by flat pressing arrangement and including one in an annular groove of the spindle bearing snapped retaining or circlip provided that is in contact with the inside of the disc spring from below and presses it onto the spindle bench.

The idea of the invention can therefore be seen in the fact that one does not special bolts as in DE-OS 35 43 197, but that circular cylindrical spindle bearing housing itself by means of a Fill the disc spring and a retaining ring on the spindle bench increases. The invention is based on the consideration that with suitable mounting with such disc springs for proper mounting of the spindle bearing housing is required Such axial clamping forces can be applied. For this the axial contact forces should be 2000 to 4000 N and preferred be 3000 to 3500 N.

In order at such high axial contact forces a problem  free snapping of the retaining ring into the one assigned to it Ensure an annular groove in the spindle bearing housing particularly preferred method for fastening a spindle bearing housing of a yarn winder according to the inven tion that a tool is simultaneously on the spindle bearing housing located on the spindle bench from below diaphragm spring close to the inside and in as possible small axial distance from it axially distant retaining ring grips from below and independently of each other so far axially in the direction of the spindle bench until the retaining ring without touching the disc spring or at least without one essential axial force transmission from the retaining ring to the tel Snap spring snaps into the associated ring groove, whereupon by axially pulling the tool off the inside of the Belleville spring comes to rest on the snap-in retaining ring. It is particularly provided that an annular Tool is used, the inner diameter of which is only small slightly larger than the outer diameter of the spindle bearing housing It is in the area of the ring groove and which is an inner stu fen-shaped and preferably flat contact surface for the Has retaining ring to which a radially outside in Ring projection extending in the direction of the plate spring closes, the axial extent of which is somewhat larger than the thickness of the retaining ring.

It is also useful if the tool by means of a He Belspannvorrichtung is actuated.

The basic idea of the method according to the invention is therefore in the fact that the disc spring does not over the Retaining ring, but rather independently of this through a suitable tool is largely flattened, whereupon - preferably with another part of the same tool the retaining ring regardless of the disc spring in the zuge ordered ring groove is snapped. The axial displacement  the inner area of the disc spring and the retaining ring that is, from the same tool, but independently of one another performed.

In this way, the retaining ring can be radially unimpeded stretch or considerable axial forces of the disc spring contract, so that a radial snap in alignment tion with the ring groove is easily possible.

According to the plate spring on the Retaining ring in the assembled state exerted axial contact pressure so large that considering the coefficient of friction between the disc spring and retaining ring and the support winch radial contact of the contact surfaces Retaining ring is not possible, so that this not only on because of its inherent resilience, but also on due to the high frictional contact between him and the phone is prevented from radial expansion and thus in rough operation there is no danger that, for example if the spindle is unbalanced, the retaining ring from even snaps out of its ring groove.

Another object of the invention is to manufacture the This further simplifies the outlay for installation and assembly chen that only a single fastener is used becomes.

A second solution according to the invention is to achieve the above improvement in that as a fastening mit tel below the hole with the outside area on top the underside of the spindle bank, from the spindle bank away slightly tapered clamping ring provided is, the inner edge in a self-locking clamping Engagement with the outer periphery of the spindle bearing housing in Height of the clamping ring is brought such that when exercising  an axial force on the spindle bearing housing upwards clamping engagement between the outer circumference and the clamp reinforced ring and so the spindle bearing housing securely on the Spindle bench is held.

So that the clamping ring has the required return spring forces can apply, is according to a preferred embodiment provided that the clamping ring consists of spring steel. Ent the above-mentioned Fe disc spring should also speak derstahl exist.

In order to compress the conical part of the clamping ring lighter, sees a particularly preferred embodiment before that the spring ring with distributed over its circumference, starting from the inner edge and in particular radially stretching slots is provided. That way So numerous radial on the inner circumference of the clamping ring Spring tongues formed, which are particularly firm and independent from each other in the outer circumference of the spindle bearing housing can claw.

A particularly good fit of the clamping ring on the spindle bank is achieved when the clamping ring is turned radially outwards close to the conical part a flat ring area which is flat on the flat lower surface of the spindle bank concerns.

Sufficient stability overall to the clamping ring so that it does not deform after attachment or warped, after an advantageous further education of the Er be provided that on the clamping ring radially outside circular cylindrical stabilization area is provided.

Because of the design according to the invention, it is sufficient if the diameter of the central opening of the clamping ring is so large  is that the clamping ring without excessive friction on the the spindle bearing housing arranged can be attached until the clamping ring on the underside of the spindle bank lies, and only by exercising the clamping ring elastic deforming axial force on the clamping ring in the direction of Spindle bench on a radius between the outside area and the inside edge of the final clamping engagement between the Spindle bearing housing and the clamping ring can be produced. The Verfor clawing the clamping ring on the spindle bearing housing mung is therefore expediently only prepared when the clamping ring relatively easy on the attachment point the spindle bench or the spindle bearing insert used in it has been brought home.

A preferred method of attaching the clamping ring solution described above according to the invention in that the clamping ring is mounted on the spindle bench te spindle bearing housing from below to the contact with the spin brought and then by means of a to the spindle bearing Hollow cylindrical tools pushed on from below ges the conical part of the clamping ring from a ring face te of the tool axially in the direction of the spindle bench such a force K is applied that the conical Part with slight grinding of the inner edge on the Au outer circumference of the spindle bearing housing is elastically deformed, and that the tool is then pulled off axially, whereby the conical part relaxes again and thereby the inner edge claw-like in the outer circumference of the spindella engages the housing.

The clamping forces for the arrangement of the tel spring or the clamping ring by a special lever clamping device applied.

The invention is described below, for example, with the aid of  Drawing described; in this shows;

Fig. 1 is a partially sectioned side view of the invention secured in a spindle bearing spindle bearing housing of a yarn winding device at a Ringspinnma machine,

Similar to FIG. 2 is a partially sectioned side view of Fig. 1, but showing a vorteilhaf tes tool is additionally shown for the assembly of the inventive SEN spindle bearing housing,

Fig. 3 is an enlarged partially cut-out sectional view of the plant according to the invention the tool during assembly of the retaining ring and the disc spring, wherein the spindle bearing housing is not shown for ease of illustration,

Fig. 4 is a partially sectioned side view of another embodiment of a dung according OF INVENTION mounted in a spindle rail spindle bearing housing of a Garnaufwickelvor direction in a ring spinning machine,

Fig. 5 is a slightly enlarged section of FIG. 4, wherein also the tool provided for the tension of the clamping ring is Darge, and

Fig. 6 is a perspective view of the clamping ring used in the embodiment according to FIGS . 4 and 5.

According to Fig. 1, a circular cylindrical and stationary spindle bearing housing 11 extends axially from top to bottom by a somewhat larger bore 12 in a horizontally running spindle ver bank 13. Above the bore 12 , the spindle bearing housing 11 has a flat and flat ring flange 14 which rests on the flat surface of the ring rail 13 from above.

In the spindle bearing housing 11 in Fig. 1 only indicated revolving at a high speed spindle shaft 27 is disposed from above, in a manner not shown, a drive and a take-up tube are whorl concentrically mounted on the.

Below the bore 12 in the circumference of the Spindellagergehäu ses 11, an annular groove 21 is provided, into which a securing or circlip 18 is snapped, on which the Innenbe rich 17 an overlying plate spring 15 is supported abge, the outer region 16 from below to the lower Surface of the spindle bank 13 is pressed. The contact pressure is between 3000 and 4000 N.

In Fig. 3 it is illustrated how by means of a ringförmi gene tool 19 of the retaining ring 18 from below via the bearing housing until it snaps into the annular groove 21 can be axially ben without the retaining ring 18 at the same time the forces for flattening the plate spring 15 must be brought up. For this purpose, the annular tool 19 has a bore 28 on the inside, the diameter of which is slightly larger than the outside diameter of the spindle bearing housing 11 in the region of the annular groove 21 . Below the annular groove 21 , the outer diameter of the spindle bearing housing 11 can be reduced, as shown in FIG. 1, but must not expand, since otherwise the retaining ring 18 could not be pushed on from below.

Radially outside the central bore 28 , the tool 19 has a flat ring step 22 , on which the retaining ring 18 rests in the not yet assembled state. Radially outside of the ring step 22 , an annular projection 23 follows in the direction of the plate spring 15 , the axial extent 24 of the ring step 22 of which is somewhat larger than the thickness 25 of the retaining ring 18 . On the front side of the axial ring projection 23 , the lower side of the plate spring 15 lies close to the inner region 17 .

In this state, the plate spring and the retaining ring are pushed onto the spindle housing 11 from below. As soon as the plate spring 15 comes to rest on the lower surface of the spindle bank 13 , a further pushing up of the tool 19 in the direction of the arrows in FIG. 3 causes a more or less flat flattening of the plate spring 15 , whereby he creates considerable resilient restoring forces, For example, with a spring travel of 0.5 mm, they can already be around 2000 N and around 1 mm at around 4000 N. This axia len spring forces must be able to be overcome by the tool 19 .

At the same time, the annular step 22 moves the retaining ring 18 on the spindle bearing housing 11 without contact or force transmission from the retaining ring 18 to the plate spring 15 . The retaining ring 18 can thus at Aufschie ben corresponding to the outer circumference of the spindle bearing housing 11 to expand freely and casual snap into the annular groove 21, after reaching the annular groove 21st Only when this is done, the tool is withdrawn axially 19, wherein the plate spring 15 for indoor rich of hangs 17 on the retaining ring 18 from above and are now transfer the spring forces from the retaining ring 18 on the spindle bearing housing. 11 Because of the high axial spring forces, the frictional forces between the inner area 17 of the plate spring 15 and the upper surface of the retaining ring 18 are so large that the retaining ring 18 can no longer expand radially and thus there is no risk of the retaining ring being cut out from the annular groove 21 . Even when Un balancing the rotating spindle or other strains, there is no risk of an independent solution of the connection once he invented connection. The fastening supply is not only safe and reliable, but also extremely easy to manufacture, which is preferably the assembly tool 26 shown in FIG. 2.

As an essential component, the inventive Mon tool 26 has a bracket 29 extending from above over the upper opening of the spindle bearing housing 11 , which engages by means of a centering projection 30 in the shaft bore of the spindle bearing housing 11 from above. At a right angle, an arm 29 'of the bracket extends since Lich past the spindle bank 13 downwards, where an actuating lever 32 is fastened by means of a plug pin 31 , which extends at its end towards the spindle bearing housing 11 towards the end in FIG individually shown lifting tool 19 carries, which is expediently pivoted on the lever 32 about an axis 33 perpendicular to the plane of the drawing. On the side facing away from the tool 19 , the lever 32 is made very long. The ratio of the lever arms F 1 and F 2 is about 1:20, so that when the lever is depressed in the direction of the arrow in FIG. 2, a 20-fold increase in force is achieved. Here, the bracket 29 is based on the top with the centering projection 30 and the adjacent areas on the upper end face of the spindle bearing housing 11 .

In this way, the spindle bearing housing 11 can be fastened to the spindle bench 13 quickly and securely by means of the retaining ring 18 and the plate spring 15 . After assembly, the pin 31 is pulled out, and the bracket can be abgenom men and used to assemble the next spindle bearing housing 11 ver.

Advantageously, the bracket 29 is pivotally attached to a holder 35 via a swivel joint 34 , which has a Zen tral boring 36 , which housing 11 and the ring flange 14 can be fitted from above onto the Spindellagerge, so that a perfect hold is ensured during the assembly process. After pulling out the pin 31 , the bracket 29 , 29 'in the position shown in dashed lines in Fig. 2 can be pivoted hochge, so that easy attachment and removal of the assembly tool 26 is ensured.

A plate spring 15 with a maximum spring of 1.3 mm is preferably selected, the spring force increasing from approximately 1800 N to 3700 within a spring path of 0.5 to 1.0 mm.

In Fig. 6, an existing spring steel clamping ring 15 'is shown, which from a central opening 38 surround the inner conical part 15 ' a, a radially outward adjoining perpendicular to the ring axis extending flat ring part 15 'b and a radially outside of it closing circular cylindrical part 15 'c, which extends from the flat part 15 ' b in the same direction as the conical part 15 'a.

The conical part 15 'a is provided with evenly distributed over the circumference, starting from the inner edge 17 ' radially extending the slots 37 , between which spring tongues 37 'are thus formed.

The diameter in the central opening 38 corresponds essentially to the diameter of the outer circumference 18 '( Fig. 4) of the spindle bearing housing 11 at the level of the fastening point of the clamping ring 15 ' on the spindle bearing housing 11 . In this way, the clamping ring 15 'shown in FIG. 6 on the Spindellagerge housing 11 of FIG. 4 from below with the flat ring surface 15 ' b can be pushed up until the flat surface 15 'b touches the lower surface of the spindle bank 13 .

Now or earlier 'Fig. 5 in accordance with deferred, whose inner diameter substantially corresponds to the outer diameter of the spindle bearing housing 11, so that the tool 19' is of gergehäuse down on the actual spindle 11, a hollow cylindrical tool 19 out from the spindle bearing housing 11 are pushed onto this bottom can. On the side facing the spin delbank 13 , the tool 19 'has an end region 40 with a significantly enlarged inner diameter, so that an inner ring edge 39 is formed on the end face, which comes into engagement with the conical part 15 ' a when the tool 19 'in the direction of the arrow in Fig. 5 on the spin dellagergehäuse 11 is pushed. The point where the annular force acts on the clamping ring 15 'is indicated in Fig. 4 by two upward arrows.

With a sufficiently large force K is now due to the contact of the clamping ring 15 'on the spindle bank 13 of the conical part 15 ' a and in particular the spring tongues 37 'so curved as is indicated at 15'' in Fig. 5 in dashed lines. The inner edge 17 'of the clamping ring 15 slips somewhat in the axial direction upwards. If the tool 19 'is axially withdrawn, the correspondingly formed inner edge 17 ' claws in the outer circumference 18 'of the spindle bearing housing 11 , since the conical part 15 ' a tries to relax again. Here, the indicated at 15 '' in Fig. 5 resilient curvature again somewhat, but remains to a reduced extent. Due to the clawing of the inner rim of the 17 'in the outer circumference 18 ', a secure and non-detachable mounting of the spindle bearing housing 11 on the spindle bank 13 is thus achieved.

Claims (13)

1. yarn winding device, in particular in the case of ring spinning machines, with a cylindrical spindle bearing housing ( 11 ) which is placed upright in a bore ( 12 ) of a substantially horizontally arranged spindle bank ( 13 ) and into which a spindle spindle for fitting a bobbin tube is fitted from above ( 27 ) is inserted for the purpose of rotation position, the spindle bearing housing ( 11 ) above the bore ( 12 ) having a support extension ( 14 ), in particular a flat ring flange, and from below a subsequently attachable fastener on the spindle bearing housing ( 11 ) is arranged by means of whose the support extension ( 14 ) from above against the spindle bank ( 13 ) can be tensioned such that the spindle housing ( 11 ) is firmly connected to the spindle bank, characterized in that axially as a fastening means below the bore ( 12 ) axially displaceable with a bar the outer area ( 16 ) on the underside of the spindle bench ( 13 ) anli Egende, clamped by flat pressing spring washer arrangement ( 15 ) and below a in an annular groove ( 21 ) of the spindle bearing housing ( 11 ) snapped retaining or circlip ( 18 ) are provided, which bears from below against the inner region ( 17 ) of the plate spring ( 15 ) and presses them against the spindle bench ( 13 ). 2. Device according to claim 1, characterized in that the plate spring arrangement consists of a single plate spring ( 15 ). 3. Device according to claim 1 or 2, characterized characterized in that the contact pressure 2000th is up to 4000 N and preferably 3000 to 3500 N. 4. A method for attaching a spindle bearing housing ( 11 ) of a yarn winder according to one of the preceding claims, characterized in that a tool ( 19 ) at the same time on the spindle bearing housing ( 11 ) Liche, from below to the spindle bank ( 13 ) Tel lerfeder ( 15 ) close to the inner area ( 17 ) and the holding ring ( 18 ) axially distant therefrom, axially distant as far as possible ( 20 ) from below and independently of one another axially displaces in the direction of the spindle bench ( 13 ) until the retaining ring ( 18 ) without loading Be with the plate spring ( 15 ) or at least without a substantial axial force transmission from the retaining ring ( 18 ) on the plate spring ( 15 ) in the associated annular groove ( 21 ), whereupon by axially pulling the tool ( 19 ) the interior ( 17 ) the plate spring ( 15 ) comes to rest on the snap-in retaining ring ( 18 ). 5. The method according to claim 4, characterized in that an annular work tool ( 19 ) is used, the inner diameter of which is only slightly larger than the outer diameter of the Spindella housing ( 11 ) in the region of the annular groove ( 21 ) and wel ches an inner step-shaped and preferably has a flat bearing surface ( 22 ) for the retaining ring ( 18 ), to which an annular projection ( 23 ) which extends in the direction of the plate spring ( 15 ) and whose axial extension ( 24 ) is somewhat larger than the thickness ( 25 ) of the retaining ring ( 18 ). 6. yarn winding device, in particular in the case of ring spinning machines, with a cylindrical spindle bearing housing ( 11 ) which is placed upright in a bore ( 12 ) in a substantially horizontally arranged spindle bank ( 13 ) and into which a spindle spindle (for placing a bobbin tube) is placed from above 27 ) is inserted for the purpose of rotation position, the spindle bearing housing ( 11 ) above the bore ( 12 ) having a support extension ( 14 ), in particular a flat ring flange, and from below a retrofittable fastener is arranged on the spindle bearing housing ( 11 ) by means of which the support extension ( 14 ) can be tensioned from above against the spindle bench ( 13 ) in such a way that the spindle housing ( 11 ) is firmly connected to the spindle bench, characterized in that a fastening means below the bore ( 12 ) is connected to the outside area ( 16 ) on the underside of the spindle bench ( 13 ), from the locker Elbank ( 13 ) away slightly tapered clamping ring ( 15 ') is provided, the inner edge ( 17 ') in a self-locking clamping A handle with the outer circumference ( 18 ') of the spindle bearing housing ( 11 ) brought to the height of the clamping ring ( 15 ') is such that when an axial force is exerted on the spindle bearing housing ( 11 ) upwards, the clamping engagement between the outer circumference ( 18 ') and the clamping ring ( 15 ') is strengthened, and so the spindle bearing housing ( 11 ) is securely attached to the spindle bank ( 13 ) is held. 7. The device according to claim 6, characterized in that the clamping ring ( 15 ') consists of spring steel. 8. Apparatus according to claim 6 or 7, characterized in that the spring ring ( 15 ') with its circumference, from the inner edge ( 17 ') outgoing and in particular radially extending slots ( 37 ) is provided. 9. Device according to one of claims 6 to 8, characterized in that the clamping ring ( 15 ') radially outward subsequent to the conical part ( 15 ' a) has a flat ring region ( 15 'b) which is flat on the flat lower Surface of the spindle bank ( 13 ) lies. 10. Device according to one of claims 6 to 9, characterized in that a circular cylindrical Stabilisierungsbe rich ( 15 'c) is provided on the clamping ring ( 15 ') radially outside. 11. Device according to one of claims 6 to 10, characterized in that the diameter of the central opening ( 38 ) of the clamping ring ( 15 ') is so large that the clamping ring ( 15 ) without excessive friction on the arranged on the spindle bench ( 13 ) Spindle bearing housing ( 11 ) can be applied until the clamping ring ( 15 ') bears against the underside of the spindle bench ( 13 ), and only by exercising the clamping ring ( 15 ') elastically deform the axial force on the clamping ring ( 15 ') in the direction of Spindle bank ( 13 ) on a radius between the outer area ( 16 ) and the inner edge ( 17 ') of the final clamping engagement between the spindle bearing housing ( 11 ) and the clamping ring ( 15 ') can be produced. 12. A method for attaching a spindle bearing housing ( 11 ) of a yarn winder according to one of claims 6 to 11, characterized in that the clamping ring ( 15 ') on the spindle bank ( 13 ) bearing te spindle bearing housing ( 11 ) from below to the system the spindle bank ( 13 ) and then by means of a hollow cylindrical tool ( 19 ') pushed onto the spindle bearing housing ( 11 ) from below, the conical part ( 15 ' a) of the clamping ring ( 15 ') from an annular end edge ( 39 ) of the tool ( 19 ' ) axially in the direction of the spindle bank ( 13 ) with such a force (K) that the conical part ( 15 'a) with a slight increase of the inner edge ( 17 ') on the outer circumference ( 18 ') of the spindle bearing housing ( 11 ) is elastically deformed, and that the tool ( 19 ') is then pulled off axially, the conical part ( 15 ' a) stretching again and thereby the inner edge ( 17 ') claw-like in d en outer circumference ( 18 ') of the spindle bearing housing ( 11 ) engages. 13. The method according to any one of claims 3, 4 or 12, characterized in that the tool ( 19 , 19 ') is actuated by means of a lever clamping device ( 26 ).