DE3003389A1 - RING SPIDER OR RING TWISTING MACHINE - Google Patents

Description

4955 - 5 -

Institute for Textile and Fiber Research Stuttgart, 741 ο Reutlingen

Ring spinning or ring twisting machine

The invention relates to a ring spinning or ring twisting machine according to the preamble of claim 1.

130032/0184

4955

For reasons of as little structural effort as possible, it is advisable if all of the ring spinning or Ring twisting machine located thread guides of this type to a single common central lubricant supply device are connected. Or only the thread guides located on a longitudinal side of the machine can be used of this type to be connected to a central lubricant supply device assigned only to them and for the A second central lubricant feed device can be provided on the other longitudinal side of the machine, so that there are two independent central lubricant supplies available. However, it is also possible, if necessary, to have more than just two independent central units Provide lubricant supplies if, for example, the spindles of the machine in more than two independent of each other Drivable spindle groups are subdivided, the spindle groups serving to wind up different threads. In in any case, however, the invention relates to a ring spinning or ring twisting machine in which the or each central filament feed device a large number of thread guides supplied with lubricant.

It is important that the lubricant supply to the individual thread guides despite the central lubricant supply takes place in a metered manner, since the lubricant consumption of the individual thread guide is very low. After a As a rule of thumb, it is generally useful if the weight of the lubricant supplied to the individual thread 0.1 to 0.3% of its thread weight. Depending on the fineness of the thread, there is then a consumption of lubricant from approx. 0.1 to 1000 mg / min per thread guide. The lubricant improves the slidability of the thread

130032/0184

BATH ORIGINAL

4955 - 7 -

and may also contain known preparations for preparing the thread. Preferably the lubricant can be water-soluble so that it can be removed from the thread or from the thread produced by means of the threads in later operations Fabric webs or the like. Can be washed out. The lubricant can be synthetic oil, flowable Be grease or the like.

In order to keep lubricant consumption to a minimum and to ensure even amounts of lubricant applied to the threads, it is It is desirable that each thread through the spinning or twisting stations which are operated jointly and which produce the same threads the same amount of lubricant / time is supplied to the thread guide. If the amount of lubricant from thread guide to thread guide is considerable are different, there is a risk that individual threads are not adequately lubricated and others Too much lubricant received and so later very different sliding properties of these threads result. In the case of such unequal quantities of lubricant, the mean value of the lubricant supply must also be higher as a precaution set than with a narrow fluctuation range, so that the lubricant consumption is also increased.

It is therefore the object of the invention to provide a very precise dosage in a structurally simple, operationally reliable manner the lubricant supply to the connected to the relevant central lubricant supply device To reach thread guides. '

This task is based on a ring spinning or ring twisting machine according to the preamble of claim 1

130032/0184

4955 - 8 -

solved in that in at least one channel section between the lubricant outlet opening or the -Output openings of the thread guide and the main lubricant line arranged lubricant are used, the operational pressure drop of the lubricant between the main lubricant line and the lubricant outlet opening of the thread guide essentially cause the operational Pressure drop of the lubricant at these throttling means is at least 0.05 bar, and that the operational

horizontal

Pressure drop of the lubricant in the / area of the main lubricant line, to which the thread guides are connected

operational
are, compared to the / pressure drop at the throttle means is insignificant, preferably at most a tenth part, and that a plurality of such channel sections containing the same throttle means are connected in parallel to one another on the or each main line.

The throttling means can preferably be in the thread guides or else in the ones leading to them from the main line branched branch lines be arranged. However, it is also possible to use the thread guides directly to be connected to the main line without intermediate lines.

Separate throttling means can preferably be assigned to each thread guide. However, it is also in some Cases conceivable that one branch line containing each throttle means, branching off from the main line instead of only one thread guide connects several thread guides,

130032/0184

4955 - 9 -

preferably two to five thread guides, if anyway the distribution of the amount of lubricant dosed by means of the throttling means to the connected thread guides is still sufficiently uniform «Because there are always a lot of spinning or twisting machines on a ring spinning or ring twisting machine Twisting points are arranged, mostly 400 to 1ooo spinning or twisting points and the central lubricant supply device preferably all thread guides or the thread guides arranged on a longitudinal side of the machine is assigned, results even when a small number of thread guides are connected to each throttle means branch line containing a large number of such branch lines. However, it is in spite of the slightly larger one structural effort is generally more advantageous for everyone Assign thread guides separate throttling means. This means that everyone is connected to the main lubricant line in question Connected thread guide is supplied with virtually the same amount of lubricant / time without any problems.

The invention results in an almost equally large supply of lubricant to all thread guides, so that the consumption of Spinning station to spinning station or from twisting station to twisting station only scatters within small limits. So you can get along with minimal lubricant consumption per thread guide and thus also save lubricant and also facilitate the subsequent washing out of the lubricant from the thread or the web made from it and reduce the amount of solvent required for this. The sliding properties of the threads caused by the lubricant are also correspondingly from thread to

130032/0184

4955 - 1ο -

Same thread, which also has a favorable effect on the subsequent further treatment or processing of the threads.

In general, it is sufficient and expedient if the thread guide has a single lubricant outlet opening. However, it is also possible, albeit normally not necessary to provide the thread guide with several lubricant outlet openings, whereby it It is generally sufficient and advantageous to have these lubricant outlet openings a single one common channel section containing the throttle means. However, it is also possible and in some In cases it is useful, especially if the thread guide emerges from each lubricant outlet opening Amount of lubricant to be dosed for itself, each outlet opening has its own 'only' assigned to it Pre-assign channel section with throttling means. The throttling means arranged in a thread guide or upstream of it can preferably consist of a single throttle element, but it is also possible to consist of several, preferably in series switched throttle organs or the like. To form.

In that the pressure drop of the lubricant occurring at the throttle means in the relevant channel section is much greater than the pressure drop which occurs in the area of the main lubricant line to which the thread guides are connected, the lubricant pressure is approximately the same at all upstream ends of the restrictor means large, in any case the possible pressure differences occurring here are small in relation to the at the Throttle means occurring pressure drops, the minimum

130032/0184

o, o5 bar. These pressure drops at the throttle means can preferably be 0.1 to 3 bar. Particularly According to previous investigations, it is favorable if these pressure drops are 0.1 to 0.5 bar.

The throttling means are to be designed in such a way that they cause a very high flow resistance. The throttling means can preferably be a threaded bolt that is positively inserted into the relevant lubricant channel section, preferably with a tight fit or an adhesive fit, through the thread of which the lubricant flows. The thread

can be manufactured very precisely at low cost and can also be made to be of great length without any problems. This Threaded bolts can therefore be mass-produced cheaply with great accuracy, so that the on during operation these threaded bolts occurring pressure drops from bolt to bolt fluctuate at most only slightly and consequently exact, equal metering of the lubricant per thread guide succeeds without any problems.

In another advantageous embodiment it is provided that To form a throttle member by a fiber strand with parallel fibers, which is firmly inserted into the relevant lubrication channel section. the Fibers must be insoluble in lubricants and must not swell. Glass fibers or acetate fibers can preferably be provided be. The fibers form a large number of flow channels between themselves and with the inner circumferential wall of the channel section small cross-section for the lubricant and thus also result in high flow resistance. Such fiber strands can be inexpensive can be manufactured with high accuracy. In another advantageous embodiment, the throttle means is through the relevant Channel section filling porous sintered material made of ceramic or tetall formed, which can form a block.

130032/0184 SAD ORIGINAL

4955 - 12 -

Exemplary embodiments of the invention are shown in the drawing. Show it:

Fig. 1 is a schematic plan view of a ring spinning or ring twisting machine shown broken with a large number of spinning or twisting units arranged on the two long sides of this machine, which are not shown in detail; there are only schematically in plan view the Lubricant feed device and thread guides connected to it, symbolized by circles shown,

Fig. 2 is a plan view of a thread guide according to an embodiment of the invention, as it is in the Machine according to Fig. 1 can be used,

FIG. 3 shows a longitudinal section through the thread guide according to FIG. 2 along the section line 3-3,

4 shows a partial longitudinal section through a thread guide with a throttle according to a second Embodiment of the invention.

The ring spinning or ring twisting machine 1o shown schematically in FIG. 1 has a plurality of two Rows of arranged thread guides 15, which by means of a central lubricant supply device 11 lubricant can be fed to lubricate the threads 25 passing through them. It has a lubricant reservoir 36 from by means of a pump 35, e.g. a gear pump,

130032/0184

BAD ORIGf ₁ WU

4955 - ■ - 13 -

Lubricant with adjustable, constant pressure in two to each other parallel horizontal main lubricant lines 34 can be pumped. So that the lubricant pressure to the At the inputs of the main lines 34 remains constant, it is expedient to provide a pressure reducing valve to the pump 35 ″ To connect a pressure relief valve, a throttle or the like, which can also be used to adjust the lubricant pressure. The one main lubricant line 34 extends along the row of thread guides 15 and 15 arranged on one longitudinal side of the machine the other main lubricant line extends along the row arranged on the other longitudinal side of the machine of thread guides 15. Each thread guide 15 is in a manner not shown vertically above a spindle, onto which a sleeve is attached, onto which the thread coming from the thread guide 15 is wound by means of a traveler is dragged by the thread on a ring penetrated by the spindle of this spinning station or twisting station can circulate.

Diagonally above each thread guide 15 is a delivery mechanism, also not shown, which in the case of a Ring spinning machine is the pair of delivery rollers of a drafting device assigned to this spinning station and which delivers the sliver, which is twisted together immediately after leaving this delivery plant to the thread guide 15 passing thread. in the In the case of a ring twisting machine, the delivery system delivers the threads to be twisted together. Begins at thread guide 15 the thread balloon 16 generated by the rotating traveler.

Each thread guide 15 is connected via a branch line 44 which leads only to it and branches off from a main line 34 this main line 34 is connected. In each of these Branch lines 44, the number of which is the number of spindles

130032/01

this machine corresponds to 1o, and / or in each thread guide 15 the same throttling means are used, at which the constant lubricant pressure present on the inlet side of the main lines 34 essentially drops, so that to all thread guides 15 lubricant flows in approximately the same amount / time. It can be like that too can easily be provided without any problems, the amount of lubricant / time together for all thread guides to be the same change large amounts by changing the lubricant pressure sets the input side of the two main lines 34 to a different value. In this way, when changing the Thread count the lubricant supply to the thread guides 15 by changing the pressure of the pump 35 ″ or by means of the pressure reducing valve or the like to the required new value can be changed.

Provision is preferably made for the throttling means to be arranged in the thread guides 15 themselves and in the branch lines 44 to arrange no throttle means, so that the lubricant pressure in them does not fall off. An advantageous embodiment of such a thread guide 15 with inserted Throttle means is shown in Figs. This thread guide 15 has a rigid body 35 into which a support rod 29 carrying it is screwed in. The body 35 has a horizontal top 39 to which at the front end there is a vertical flat area at right angles to which an angled, Connected obliquely to the rear leading flat area 41. In this body 35 is a towards the front open narrow slot 24 with thread guide surfaces 22 form milled parallel side walls, its width

130032/0184 ORIGINAL BATHROOM

4955 - 15 -

is slightly larger than the diameter of the threads guided through it and can be, for example, approx. 2 mm. This slot 24 forms a narrow channel with a base 42 which is slightly concave in cross section and has rounded long sides. In this Bottom 42 is the only lubricant outlet opening 3 2 of a single one integrated into the body 3 5 Lubricant nozzle 31, which is here through the body 3 5 with is formed. The calibrated lubricant channel 35 'has a small diameter of preferably about 0.15 mm. The lubricant outlet opening 32 is flush with the bottom 42. The longitudinal axis of the nozzle 31 is directed so that the lubricant flows obliquely upwards.

The channel 35 "includes centrally on a considerably larger diameter circular cylindrical passage portion 44 'of the body 35 on, is inserted in the a Drosselmiitßi 6o form fit in friction or interference fit, which will be explained in more detail below. At this channel portion 44 ¹ is the A branch line 44 which does not contain a throttle means is connected from one of the main lines 34. This branch line 44 is fastened to the body 35, for example by soldering or in another suitable manner 5o forming circular cylindrical pin 26 'with a diameter of for example 1-2 mm made of highly wear-resistant material, for example oxide ceramic or hard metal, inserted as shown in such a way that the straight bottom 42 ends at it tangentially flush with its edge 5o deflecting the thread 25 Thread 25

130032/0114 ORIGINAL BATHROOM

4955 - 16 -

runs to this the in cross-section circular arc-shaped thread deflecting edge 5o forming pin 26 'in oblique from above downward direction and is deflected into the thread balloon 16 by this edge 5o.

The position of the lubricant outlet opening 3 2 is like this made that the thread 25 is not with its thread body 25 ', but in all positions of the thread guide 15 only with its protruding fibers 25 '' 'in contact with the at the level of the outlet opening 32, escaping lubricant comes through and so this lubricant the protruding fibers 25 ″ is continuously picked up and thus also the thread deflecting edge 5o. If against it the thread 25 is a continuous thread without protruding fibers, the lubricant runs along the section 53 leading from the outlet opening 32 to the thread deflecting edge 50

of soil to Fadenumlenkkante 5o and lubricates cler \ thread 25 thereby nearing Fadenumlenkkante 5o, so this is also constantly optimally lubricated. This bottom section 53 thus forms a "lubricant guide surface" which leads to the thread deflecting edge 5o.

In the thread guide 15 according to FIGS. 2 and 3, the throttle means at which the pressure drop of the lubricant between the Lubricant main line 34 and the lubricant outlet opening 32 occurs essentially through one in the circular cylindrical channel section 44 'positively in an adhesive fit or a tight fit coaxially inserted threaded bolts 6o formed. This bolt 6o is with its front end face at the beginning of a frustoconical short

130032/0184 ORIGINAL BATHROOM

4955 - 17 -

Channel section which opens into the nozzle channel 35 ¹ . The threaded bolt 60 is preferably made of high quality steel and its circumference is ground. It can be produced in that a single helical thread 61 is cut into a circular cylindrical pin in such a way that the adjacent thread turns are axially spaced from one another, as shown. The clear cross section of the groove forming the thread 61 can be extremely small, preferably in the

2
Of the order of magnitude of 0.01 mm. The likewise helical region 62 located between the thread turns sits snugly against the cylindrical inner circumferential wall of the channel section 44 'and thus seals off the adjacent thread turns from one another. In this way, the lubricant can flow exclusively in the helical thread 61 from the line 44 to the nozzle channel 35 "forming a capillary. The helical thread 61 has a triangular cross-section in this embodiment. Its cross-section can be produced very precisely. This threaded bolt is simple and inexpensive can be produced precisely and thus creates precisely defined flow resistance for the lubricant.

During operation, a pressure drop occurs in both main lubricant lines 3 (FIG. 1) over the entire length of each of these two main lines 34, which are negligibly small compared to the equally large pressure drops' on the threaded bolt 60 is the thread guide 15. The pressure drops in the lines 44 and the nozzle channels 35 'are also negligible. This results in the same greater

130032/0114 ORIGINAL BATHROOM

4955 - 18 -

Lubricant inflow to the lubricant outlet openings 32 of all thread guides 15, so that the amount of lubricant / time that comes from the individual thread guide / to the thread, is subject to only very slight fluctuations from thread guide to thread guide.

Another important advantage of the threaded bolts 6o is that if the lubricant pressure in the main lines 3 4 is reduced to ambient atmospheric pressure with the main line 34 still filled when the machine is at a standstill or when the machine is idling, the branch lines 44 and the lubricant channels of the thread guide 15 continue to be filled with lubricant , since the capillary forces in the threads of the threaded bolts 6o prevent the lubricant from flowing back into the main lines, so that the lubricant supply to the threads is immediately guaranteed again when the system is restarted. This advantage also exists in the case of a different design of the throttle means provided according to the invention as a result of the capillary forces caused by their always necessary very small flow cross-sections.

It should also be pointed out that the supply of lubricant per unit of time to the thread guides 15 also can be changed by changing the viscosity of the lubricant, so that one can adjust the amount of lubricant / time has two variables, namely the pressure and the viscosity of the lubricant.

130032/0184 ORIGINAL BATHROOM

4955 - 19 -

It is also possible to design this central lubricant supply device 11 without a pump by arranging the lubricant storage container 3 6 so high above the horizontally lying main lines 3 4 that the static liquid pressure caused thereby forms the conveying pressure which delivers the lubricant to the thread guides 15 As mentioned, the delivery pressure essentially drops at the bolt βο.

In Fig. 4 a further embodiment of a thread guide containing a throttle means 15 is shown, which can correspond in all details to the thread guide according to FIGS. 2 and 3 with the difference that no threaded bolt is inserted into the channel section 44 ', but the throttle means is through a glass fiber strand 6o " ^{1 is formed} from parallel, continuous glass fibers of the same length, which is firmly inserted into the enlarged diameter nozzle channel 35, preferably pressed the pressure of the lubricant drops substantially.

130032/0184 ORIGINAL BATHROOM

Claims (11)

"Dr.-Ιηα. Dipl.-Phys. OS K A R ΚΘ.Ι.-f IG Pa '^ t Jw,: U 3003389 Teli-lun: (U? H) KS3DT5 29 64 61 Account Ν. ··. L u- Tolunramni: Koenlgpat 7000 STUTTGART-I, Klüpielstrasse 6 P ^ jtschucx. 3.et P.O. Box Si 4955 Claims Ring spinning or ring twisting machine for spinning or twisting threads, with a large number of spinning positions or twisting points, each of which has a spindle and a ring penetrated by the spindle on which a runner dragged by the thread can revolve, with between each spindle and the one upstream of it Delivery mechanism a thread guide is arranged, the at least one lubricant channel and at least an outlet opening for flowable lubricant with a viscosity of at least 1o cP, preferably from 5o to 1ooo cP, which from one of the supply of all thread guides of this type or a large number of them serving central lubricant supply device having at least one main lubricant line is delivered dosed to the thread guide, which has a thread deflecting edge and a narrow one Has thread guide slot for guiding the thread, with its outlet opening or its outlet openings are arranged for the lubricant at a distance obliquely above the thread deflecting edge, according to Patent ........ (Patent application P 28 38 73o.6), characterized in that 130032/0184 BATH ORIGINAL - 2 - in at least one channel section (44 ';35') of a lubricant channel (6o; 6o ') arranged between the lubricant outlet opening (32) or the outlet openings of the thread guide (15) and the main lubricant line, throttling means (6o; 6o') which reduce the operational pressure drop of the lubricant between the lubricant main line (34) and the lubricant outlet opening of the thread guide substantially cause the operating pressure drop of the lubricant in these throttling means (6o, 6o ') at least o, o5 is bar, and that the operating pressure drop horizontal of the lubricant in the / area of the main lubricant line (34) to which the thread guides (15) are connected are, compared to the operational pressure drop at the throttle means (6o; 6o ') is insignificant, preferably at most is the tenth part, and that on the or each main line (34) a plurality of such identical throttle means (6o; 6o ') containing channel sections are connected in parallel to one another. 2. Machine according to claim 1, characterized in that the throttle means (6o; 6o ') have an operational pressure drop of the lubricant flowing through it from 0.1 to 3 bar, preferably from 0.1 to 0.5 bar. 3. Machine according to claim 1, characterized in that each channel section (44 '; 35') containing throttle means (6ο; 6ο ·) is assigned to a single thread guide is. 130032/0184 - 3 - 4. Machine according to claim 3, characterized in that the throttle means (6o; 6o ") are arranged in a lubricant channel (35 '; 44') located in the thread guide (15) are. Machine according to claim 3 or 4, characterized in that the throttling means by one in one Lubricant channel section (44 ') is formed coaxially and positively arranged threaded bolts (6o) through the thread (61) of which the lubricant flows. 6. Machine according to claim 5, characterized in that the lubricant channel section (44 ') is circular-cylindrical is and axially adjacent thread turns through a likewise helical circumferential surface of the threaded bolt are separated from each other, which are attached to the circular cylindrical inner peripheral wall of the Channel section (44 ") is pressed. 7. Machine according to claim 3 or 4, characterized in that the throttle means by a in a cylindrical channel section (35 ") firmly inserted fiber strand (6ο ¹ ), the Fibers are not soluble and not swellable in the lubricant are. 8. Machine according to claim 7, characterized in that the fiber strand (6ο ¹ ) into the bore facing the lubricant outlet opening of the thread guide 130032/0184 © ÄD ORIGINAL - 4 - the lubricant nozzle of the thread guide is inserted. 9. Machine according to claim 3 or 4, characterized in that that the throttle means is a porous sintered material. 1o. Machine according to one of the preceding claims, which has a row of thread guides on each of the two longitudinal sides of the machine, characterized in that, that each row of thread guides (15) is assigned a main lubricant line (34) which is connected to a common lubricant feed line are connected. 11. Machine according to claim 7 or 8, characterized in that the fibers of the fiber strand (6ο ¹ ) are glass fibers. 130032/0184