DE1047086B - Device for forming a coater attachment on spinning or twisting machines with spindles positively driven by helical screws - Google Patents

Description

The invention relates to a device for forming a kötzer approach on spinning or twisting machines with spindles positively driven by helical gears, in which the spindle or Ring banks can be moved up and down with the help of toothed columns or screw spindles and to the drive the horizontal helical gear shaft moved up and down with the spindle or ring rail on the up and from going spindle or ring rail a reversing gear is attached to the control by a for this purpose provided with two superimposed stops indexing gear is subject, which by means of a lifting nut can be moved along a vertical threaded shaft and with every bank game executes a feed movement that always remains the same.

In the known devices of this type, the two stops of the indexing gear are in the Usually arranged to be adjustable, but to be fixed for use. One can therefore with such Devices only produce Kötzer whose approach is synchronized with the Kötzerkopf. For extraction a different from the Kötzerkopf, namely enlarged approach, as it is on spinning or twisting machines is regularly produced with chain-operated spindle or ring banks, it requires the temporary, independent control of these attacks. This causes difficulties insofar as than just both stops for the stroke relocation conventionally through their feed movement received their common carrier, namely the only step-up transmission. To these attacks from each other To be able to adjust independently should therefore actually have to have a separate one for each stop Progressive transmission can be provided, as has already been proposed per se. Through this but the whole thing turns out to be quite expensive. In addition, each progressive gearbox is then also available assign your own sequencer; because these may have to be different mediate large switching distances, so that on top of that they are completely different from the familiar and require cumbersome controls.

In contrast, the aim of the invention is to provide such an enlarged Kötzer approach with only to be able to produce a progressive gearbox and also only a stepping mechanism, the latter only always carries out one and the same damage steps of equal magnitude. This is achieved according to the invention in that the one controlling the lower stroke limit, as opposed to the upper stroke limit controlling stop adjustable on the indexing gear attached stop during the Formation of the Kötzer approach temporarily with the device

to form a kötzer approach

on spinning or twisting machines

with inevitably by helical gears

driven spindles

Applicant:

VEB

Spinning machine construction Karl-Marx-Stadt,
Karl-Marx-Stadt, Altchemnitzer Str. 27

Helmut Hunger and Werner Ulbricht, Karl-Marx-Stadt, have been named as inventors

Stepping mechanism of the indexing gear is drive-connected, so that the adjustable stop at for each feed step of the indexing gear one that always remains the same, but is opposite Switching step executes, this adjustable stop, the before the beginning of the Kötzeransatzes from the stop permanently attached to the indexing gear to only one reduced Stroke permissible distance is set, until the completion of the Kötzer approach in the opposite direction to Advance movement of the indexing gear from the fixed stop up to a mediating the full stroke Distance is withdrawn.

In the drawing, the invention is shown in an exemplary embodiment.

Fig. 1 shows a conventional Kötzer with the same head and neck,

Fig. 2 shows the same with an enlarged approach (hatched);

Fig. 3 shows schematically the structure of this enlarged Kötzer approach from the individual yarn layers and

4 shows the device according to the invention for obtaining the enlarged Kötzer approach.

809 699/360

The usual incremental gear 1 sits on the screw spindle 3. Inside the incremental gear 1, a bevel gear pair (not shown) is arranged in a familiar manner, one of which is designed as a nut and screwed onto the screw spindle 3. The other bevel gear sits on the shaft 20, on which a ratchet wheel 2 is located on the outside. By means of a lever 21 that can be loosely pivoted about the shaft 20 and the switching pawl 22, the switching wheel 2 is continuously moved further and the conical nut wheel screwed onto the screw spindle 3 is thus rotated. According to the Kötzer structure, this leads to the gradual lowering of the incremental gear 1 on the screw spindle 3. The incremental gear 1 is equipped in a known manner with the two stops 11 and 12, which control the usual reversing gear, which again influences the drive device for the spindle or ring rail . While the lower stop 12 is finely adjustable in a known manner, but is firmly seated on the forward gearbox housing 1, the upper stop 11 is attached in a movable manner. For this purpose, it is located on a carrier 10 which is screwed onto a rotatable threaded spindle 9 and is held secured against rotation by the guide rod 17. An adjusting ring 18 limits the depth of the carrier 10. At the upper end of the threaded spindle 9, a pin coupling 8 is provided, into which a U-shaped pawl 14 engages, which is pivotably mounted at 23. Above the pin coupling 8 there is a helical gear 7 on the threaded spindle 9, namely loosely rotatable. This is in engagement with a helical gear 6, on whose shaft a spur gear 5 is located. The latter meshes with a spur gear 4 on the selector shaft 20. The advancing movement of the shaft 20 is thus transmitted to the helical gear 7. If the pins 16 of the coupling 8 are in engagement with the helical gear 7, the spindle 9 rotates. This results in a continuous lifting of the stop 11 from the initial position χ to the end position y . When the end position y is reached, an auxiliary stop 13 presses against the lower leg of the U-shaped pawl 14, which thus releases the coupling 8. The compression spring 15 then pushes the coupling 8 with its pins 16 out of the helical gear 7. The helical gear 7 then rotates loosely on the threaded spindle 9. A hand wheel 19 is used to bring the stop 11 back into the initial position χ .

The stop 11 is used to control the lower end of the thread layers. At the start of the spinning or twisting process, the two stops 11 and 12 are in the position shown in FIG. 4, and the movable stop 11 is at the distance x opposite the fixed stop. The Kötzer approach is now formed (Fig. 3). The stroke during the development of the first layer corresponds to the dimension χ in FIG. 4 and is denoted by h 1 in FIG. 3. In the next layer, the stop 11 has moved a little upwards, as a result of which the corresponding, somewhat longer thread layer h 2 is created. Corresponding to the constant upward winding of the stop 11, these layers of thread are now getting longer and longer until they reach the dimension & 3 at the end of the Kötzer approach, which corresponds to the distance ^. Because the distance between the two stops 11 and 12 is increased from the dimension χ to the dimension y by moving the stop 11, the constant increase in stroke when the Kötzer approach is formed is only ever expressed on its underside. The remaining difference in the lower advancement path of the spindle or ring rail is in view of this only small during the formation of the approach, it corresponds to the dimension b of FIG. 3. The upper advancement path, however, has the full dimension α (cf. FIG. 3). At the end of the Kötzer approach, the lower indentation also has the size a.

If the Kötzer approach is ready, the stop lifts the pawl 14, which in the described Way, the threaded spindle 9 comes to a standstill. By means of the handwheel 19 it can then for the next work process are rotated until the stop 11 is back in its starting position has arrived. The pin coupling 8 is then to be re-engaged, which is done by means of a hand lever. As a result, the pawl 14 falls again, which is expediently not under the influence of a drawn pen.

Claims (3)

Patent claims: 1. Device for forming a Kötzer approach on spinning or twisting machines with helical gears necessarily driven spindles, in which the spindle or ring banks with the help of Toothed columns or screw spindles are moved up and down and to drive the horizontal, with the spindle or ring rail moving up and down the helical gear shaft on the up and down going spindle or ring rail a reversing gear is attached, which the control by an indexing gear provided for this purpose with two stops on top of one another is subject, which can be moved along a vertical threaded shaft by means of a lifting nut and carries out a feed movement that always remains the same for each bank game, characterized in that that the stop (12) controlling the lower stroke limitation, in contrast to the stop (12) controlling the upper stroke limitation, is adjustable the stop (11) attached to the indexing gear (1) during the formation of the Kötzer approach temporarily drive-connected to the step-by-step mechanism (20 to 22) of the incremental gearbox (1) is so that the adjustable stop (11) with each feed step of the indexing gear (1) one also always the same size carries out permanent but opposite switching step, this adjustable stop (11), before the start of the Kötzer approach from the stop attached to the indexing gear (1) (12) is set to a distance (x) that only allows a reduced stroke (Al), until the Kötzer approach is completed in the opposite direction to the feed movement of the indexing gear (1) from the fixed stop (12) up to a mediating the full stroke QtZ) Distance (y) is withdrawn. 2. Spinning or twisting machine according to claim 1, characterized in that the adjustable stop (11) with its carrier (10) secured against rotation on a threaded spindle (9) of the Stepping gear (1) is screwed on during the formation of the Kötzeransatzes of the Stepping mechanism (20 to 22) is rotated from step by step. 3. Spinning or twisting machine according to claims 1 and 2, characterized by a Coupling (8) on the threaded spindle (9) and an auxiliary stop (13) on the carrier (10) of the adjustable stop (11), which auxiliary stop (13) when the distance (y) mediating the full stroke (h3) is reached , the coupling ( 8) opens and prevents the threaded spindle (9) from being driven by the stepping mechanism (20 to 22). Considered publications:
German Patent Nos. 912191, 822 520, 238; Fahrbach, Kammgarnspinnerei, 1954, p. 271 and Figs. 130 and 132; Johannsen, Handbook of Cotton Spinning, 4th Edition, Vol. V, pp. 26 to 35. 1 sheet of drawings