DE1054357B - Pot spinning machine with hanging, bottomless spinning pot - Google Patents

Description

GERMAN

The invention relates to pot spinning machines, especially for bast fibers, with hanging, bottomless spinning pot, which is supported on a spring-loaded footplate while spinning under friction, on one opposite to the spinning pot in the axial direction udd preferably also in the transverse direction adjustable bench is rotatably mounted. The task of the foot plate is to open the lower one Support the end of the hanging spinning pot and thereby those occurring in the spinning operation, for the storage of the spinning pot and for the quality of the To cancel webbing very damaging vibrations of the spinning pot) or to reduce them;

With this arrangement, the frictional engagement between the spinning pot and the foot plate can be practical never be so strong that it allows the transmission of greater powers. Between the spinning pot and the foot plate unavoidable sliding phenomena occur, and not particularly when starting the Spin pot, d. H. at the beginning of the spin process, but also during the spinning operation itself as a result of the vibrations of the rotating spinning pot. These vibrations are due to the uneven weight distribution (Unbalance) of the spinning cake in the spinning pot and are especially in the long and irregular Bast and leaf fibers inevitable.

In the previously known pot spinning machines of the type mentioned above, the Fußtelkr is through driven by a motor and in turn drives the spinning pot, which is in frictional connection with it at. In this version, the sliding phenomena are particularly strong between the spinning pot and the foot plate and also have a very detrimental effect both on the spinning operation and on the wire formation of the spun thread. In particular in the spinning of the bast and leaf fibers that is, wide, long and consequently very heavy spinning pots are required. At the start of the chip Therefore, the directly driven foot slides out quite significantly compared to the spinning pot, and it must a relatively long time elapse before the inertia of the spinning pot is overcome and the Spinning pot with the same full one necessary for spinning. The number of revolutions of the footplate revolves. As a result, at the start of spinning (and not only when a new spinning process is initiated, but even when resuming a z. B. by a thread break interrupted spinning process) the tightening of the fiber strand by the spinning pot and thus also the beginning of the wire-making process is quite considerable delayed. Apart from the loss of time> which should not be underestimated in continuous spinning operation As a result, yarn lengths turn with insufficient wire formation each time the spinning starts again Pot spinning machine

with hanging, bottomless

Spinning pot

Applicant:

Adriano Gardella

and Constantino Gardella,

Genoa (Italy)

Representative: Dr.-Ing. E. Berkenfeld, patent attorney,
Cologne-Lindenthal, Universitätsstr. 31

Adriano Gardella and Constantino Gardella,

Genoa (Italy),
have been named as inventors

fail, and the re-tying of the yarn is made much more difficult, even if the thread breaks. Furthermore, cause the sliding phenomena occurring in the spinning operation itself as a result of the vibrations Spinning pot and foot plate corresponding changes in the speed of rotation of the spinning pot, which in turn cause changes in the wire structure of the spun yarn. the Twist and as a result: the tensile strength of the thread obtained are therefore very irregular.

The invention now has the purpose stated above Disadvantages of the known pot spinning machines of the above type to be corrected », and consists in that the spinning pot can be driven in a manner known per se on its upper part and that through the spinning pot driven foot plate is freely rotatable. On the one hand, this will make the sliding appearances considerably reduced between the spinning pot and the foot plate, since the lighter foot plate is a lot has less inertia compared to the heavy spinning pot and from this to the full in a very short time Number of tours is taken. On the other hand, there may be gliders between the spinning pot and Foot plate has no effect at all on the speed of rotation of the spinning pot and, as a result, on the twisting of the yarn, since the spinning pot is driven directly and immediately when the drive motor is started rotates with the full number of revolutions required for spinning or, even if it is in

809 788/228

3 4

Spinning operation should slide against the foot plate, loaded :. The frame 7 is pivoted

its velocity does not change. The one by a pinion 10 that with buckets on the frame

at the beginning of spinning or in the event of thread breaks in the provided toothed segment 11 is in engagement.

Spinning pot introduced thread is consequently so- The spinning cake unloading frame 7 carries two adjacent

pulled away from the spinning pot, and the foot plate 5 loosely attached, parallel benches 8 lying on top of one another

does not need to be designed as a fan as before and 9. By pivoting the frame 7

These banks 8 and 9 can be alternated under the

adverse suction effect avoided wind. Spinning pots 2 brought and 'by one in stationary

In the known pot spinning machines the initially vertical guides 12 are movable up and down

The type described is also the foot plate with its io lifting table 13 raised individually against ¹ the spinning pots 2

Trunnions firmly connected, d. H. about a rigid axis or lowered and placed back on the frame 7

rotatably mounted, which is another reason to open. The holder of the benches 8 and 9 on the

occur the undesirable sliding movements between lifting table 13 is carried out by Aufstecksitifte 14, the z. B.

Representing spinning pot and foot plate. Which are unavoidably attached to the lifting table and ¹ in the corresponding

borrowed, due to the imbalance of the spinning cake 15 holes 108,109 of the banks 8 and 9 intervene,

caused shaking movements and vibrations of the or vice versa. In. in the same way can the

Spinning pot can namely from such a holding ring of the banks 8 and 9 on the pivoting

rigidly mounted foot plates are not followed and baren frame 7 takes place.

therefore have a releasing effect on the friction connection. The one bank 8 represents the per se known deposit between the spinning pot and the foot plate. The foot bench for receiving the spinning cakes 22 'pushed out of the spinning pots 2 must also be strictly coaxial with the spinning pot and carry them. But it is, especially with the usual customary spinning cake attachment carrier 15. After the long spinning banks with a large number of pivoting, the Aufeteckbank 8 in the receiving spinning pots and with the required adjustable position under the spinning pots come the individual speed of the foot plate bank in relation to the Spinning pot 25 spinning cake attachments 15 coaxially with the bank practically impossible that all spinning pot spinning pots are 2 zn.

Axes exactly with the corresponding foot plate. The other bank 9, on the other hand, carries rotatable bearings

axes coincide. Most foot plates turn foot plates 16 for the spinning pots 2, which are also after

therefore swiveling this bank under the spinning pots by one opposite the corresponding spinning pots

pot axis eccentric axis of rotation circumferentially, being coaxial with the individual spinning pots 2

follow the rigid connection between footplate and come. The foot plates 16 wear on their upper

Pivot the vibrations of the spinning pots not only side a rubber or leather ring 20, and their rotating

in no way canceled, but on the contrary even pegs- 116 are 'according to the embodiment in FIG. 2

promoted and with a corresponding increase by the upper neck bearing 17 and by means of a spring

Sliding movements between the spin pot and the foot plate 35 18 in the axial direction sprung, displaceable

throw much more intensely. Thrust bearing 19 supported.

These disadvantages can now be remedied after a further Before the start of the Spinruvonganges the foot feature of the invention is that plate bank 9 vecsohwenkt under the spinning pots and lifted the foot plate pendulum against its axis of rotation by the lifting table 13 (Fig. 2). This is stored. As a result, the foot plate can all open 4 ° tilt the foot plate 16 from below against 'the spinning treads) vibrations of the spinning pot, pressed on pot 2, the lower edge 202 each so that its firm frictional connection with the spinning pot 2 through' the spring 18 on the rubber ring pot is preserved even in the spinning operation. Furthermore 20 d'es corresponding foot plate 16 is pressed and so throw the unwanted axis eccentricities between the friction foot plate and spinning pot formed by the parts 20 and 202 automatically canceled, 45 coupling between foot plate 16 and spinning pot 2 and the foot plate can only then do its actual closed ¹ . When spinning, the foot vibration-damping task will actually be performed. plate 16 of the rotating spino pots 2 with

In the drawings, the exemplary embodiments are taken and circulate with them.

Invention shown. It shows after completion of this · the spini process becomes the

Fig. 1 a spinning machine according to the invention in the 50 foot plate bank lowered by the lifting table 13 and

Elevated view and partially in section, placed on the frame 7. As a result, the foot

2 shows a spinning pot with a rotatably mounted foot plate 16 automatically from the corresponding spinning

plate in longitudinal section, pot 2 disengaged. The footplate is then

3 shows a further embodiment of the foot plate bench 9 together with the frame 7 to the side of the

storage on average. 55 spinning pots away, swivels, which at the same time

In the drawing, 1 is the spinning machine frame, also the attachment bench 8 under the spinning pots on which the bell-shaped bottom pivot is pivoted (FIG. 1). The same lifting table 13 lifts loose, revolving spinning pots 2 by means of roller bearings 3 now that the attachment bench 8 is mounted against the spinning pots and are suspended. Each spinning pot 2 is driven by a belt 4 which leads to the individual spinning pots 15, which is guided by a belt 4 into the corresponding spinning pots 2. The upper end of the spinning pot bals 102 attached spinning cakes 22 throw then out of the spinning pots belt roller 5 is guided. Ejected through the spinning pot neck and falling onto the attachment carrier 15. 102 , the tubular, up and down thread is carried out after the attachment bench 8 has been lowered onto the guide 6. Frame 7 throws this swiveled back, whereby the

In this machine, the spinning base 9 that was obtained throws it back to lie under the spinning pots

cake · 22 z. B. comes through an upper, movably mounted and the attachment bench 8 on the front spinning

Ejection plate 21 swiveled through the lower spinning pot opening machine side, where the decrease of the

ejected and takes place on a known, under-spinning cake 22.

half of the spinning pots arranged around a horizontal There are of course various other designs

valley pin 107 ver pivotable frame 7 out- 70 guide forms of the invention possible, in particular

Claims (2)

10 as regards the friction clutch 20, 202 between the rotating spinning pot and the corresponding base plate or the storage of the base plate. So z. B. the lower end 202 of the spin pot have a lateral conical friction surface 402 (FIG. 2) which engages in an upper conical circumferential ring 216 of the base plate 16 in the manner of a friction cone clutch. Furthermore, the lower edge of the spinning pot 2 can be provided with teeth or prongs 302 which engage in the rubber ring 20 of the base plate 16. In order to ensure a perfect fit of the spinning pot 2 on the corresponding base plate 16, even in the event of low unavoidable inclinations of the axes of rotation of the spinning pot and the foot plate to each other or in the event that the superimposed faces of the spinning pot and base plate are not perfectly parallel to ensure , the foot plate 16 can graze in a pendulous manner. For this purpose z. B. in the embodiment according to FIG. 3, the foot plate 16 is supported by a ball or spherical roller bearing 23 on the upper free end of a non-rotatable vertical pin 24, the latter being slidably inserted in a bushing 25 attached to a four foot plate bank and by the spring 18 is supported, the foot plate 16 being able to swing slightly in all directions around the upper end of the support pin 24. Versions are also possible, in particular in the case of a base plate mounting according to FIG. Finally, it is easily possible that the rotatably mounted foot plate 16 can only be swiveled in the axial direction from and to the spinning pot 2 and not laterally. 1. Pot spinning machine, especially for bast fibers, with hanging, bottomless spinning pot, which during spinning is supported by frictional engagement on the spring-loaded foot plate, which on one opposite the spinning pot in the axial direction and preferably also in the transverse direction adjustable bench is rotatably mounted, characterized in that the spinning pot (2) in itself as is known, atitreibbar on its upper part and the foot plate (16) driven by the spinning pot (2) is freely rotatable. 2. Pot spinning machine make claim 1, characterized characterized in that the foot plate (16) is mounted oscillating. Considered publications:
German patent specifications No. 581208, 718 328,
667, 877 875, 917 562. 1 sheet of drawings © 809 788/228 3.59