DE1089674B - Device for automatic winding of yarn heads with upper and lower winding - Google Patents

Description

The invention relates to a device for the automatic winding of yarn or twisted cops with upper and lower winding when using the method according to patent 1 062152.

This device consists in that, in addition to the main motor, which is used during normal Kopsauten the draft cylinder including spindles and drives the ring rail via the switching mechanism, a well-known one Servomotor is provided which drives the ring rail after the sleeves have been fully spun alone takes over. Here, the servo motor lifts the ring rail into the position it is intended to form the upper winding upper end position, whereupon it is stopped while the upper winding is being formed, then, after reversing its direction of rotation, the ring rail in hers was intended to form the underwinding End position lowers and they finally, after standstill during the formation of the underwinding and during the removal of the bobbins, after renewed reversal of its direction of rotation, lifts back into its piecing position. The main motor, however, drives during the lifting of the ring rail to the upper winding, while the formation of the upper winding and during the lowering of the ring rail the drafting rollers, the Spindles and a program control. The program control regulates the ring rail drive the servo motor, the spindle and drafting system drive by the main motor as well as switching on and off of the normal rear derailleur. Only after the lifting of the ring rail has ended in its piecing position takes over the main motor again alone drives the entire machine with the servo motor switched off and switched on again.

The winch device according to the main patent has a gear with two alternately by means of a common one Shift fork couplings that can be switched on and off for switching the lifting drive of the Ring rail from the main motor to a servo motor and vice versa.

The subject of the present invention is a further embodiment of the device for automatic winches of yarn heads with top and bottom windings.

The winding device consists of an eccentric moved in a manner known per se Eccentric lever and a tension member guided via deflection rollers arranged at both ends of the eccentric lever (Lift chain), one end of which to the indexing gear or the lower winch device and the other end of which is connected to the chain drum that causes the lifting and lowering of the ring rail is. In addition to the main motor, there is a servo motor for the underwinding and an eccentric lever briefly over its maximum stroke to the device for automatic winching

of yarn bobbins with upper

and underwinding

Addendum to patent 1,062,152

Applicant:
German spinning machine construction

Ingolstadt,

Branch of Schubert & Salzer

Maschinenfabrik Aktiengesellschaft,

Ingolstadt, Friedrich-Ebert-Str. 84

Purpose of overcoming the Kops deflecting control member provided by means of a program control be switched.

In one embodiment of the new device, a control disk is on the main eccentric shaft on her adjustable segments arranged for actuating the control switch of the servo motor and of the tax body. There is already a device for forming reserve windings known in which the Shift arm is briefly deflected beyond its maximum stroke by an eccentric, which is the main eccentric briefly protrudes along part of its circumference. Furthermore, it is already known to have a To arrange eccentric member and eccentric

4 <J by adjusting this member to the switching arm Deflect the formation of reserve windings. It has also been suggested to have an eccentric roller on one to store slides displaceable in the longitudinal direction of the eccentric lever and the deflection of the eccentric lever to be achieved by moving the carriage together with the roller accordingly.

These known devices are relatively complicated in construction and accordingly expensive and prone to failure. They cannot always be accommodated in terms of space, especially when the machine frame is narrow.

The subject of the present invention is a further embodiment of the device for automatic Winches of yarn bobbins with upper and lower

009 608/219

winding according to the main patent 1 062 152, wherein a pull or directly articulated on the eccentric lever Push rod or a pressure roller acting directly on the eccentric lever is provided, which electromagnetically, is operated hydraulically or pneumatically, and acts on the eccentric lever so that the Ring rail is raised into the upper winding.

Further details of the new device will be explained with reference to the drawings.

1 shows a schematic view of part of a ring spinning machine including control and drive devices for the head winding with a lifting element for the top winding;

Figs. 2, 3, 4 and 5 illustrate details from Fig. 1, in particular the lifting element for the upper winding and its control;

Fig. 6 shows the timing of the individual switching operations, the line χ the successive phases of the ring rail movement, the line y the working phase of the lifting member for lifting the ring rail into the upper thread position and ^ ₁ the running phase of the servo motor and the line s the phase of the Represent main engine;

7 and 8 show in side view and partial section and in plan view another embodiment of the lifting organ.

In Fig. 1 and 2, m denotes the ring rail eccentric driven by the main motor via the shaft w and L the associated eccentric arm rotatable in the bearing block Z ₁ , at the ends of which pulleys e and e ' for the lifting chain H of the ring rail are arranged. One end of the lifting chain H is guided around a winding or underwinding wheel h of a stepping gear g or an underwinding device f, the other end around a known chain drum d . From the latter, an overdrive c leads to chain wheels α for moving the thread guides and separators and to chain wheels b for the ring rail stroke. Via the indexing wheel g and the wheel h , the lifting chain H receives the indexing stroke corresponding to the yarn thickness to be wound. In addition to the main motor, not shown in the drawing, for driving the shaft w of the ring rail eccentric m , a servomotor K is provided which drives a lower winding wheel h via an intermediate gear.

W on the Hauptexzenterwelle next to the Hauptexzenter m a control disk n _± with adjustable and lockable control segments R ₁ and R ₂ for actuating the switches S ₁ and S ₂ arranged (see, Fig. 4 and 5), the deflection of the Exzenterarmes L for The purpose of overwinding takes place during the angle of rotation <a of the ring rail eccentric m, (FIG. 3) by means of a pull rod 2 which acts directly on the eccentric arm L. In the direction indicated in Fig. 2, the draw bar 2 is hinged with its upper end at the pivot point of the chain roll e on the eccentric arm L, the lower end carries a piston 3 which reciprocates with the reciprocating motion of Exzenterarmes L in a guide 5 and forth is . By actuating the control switch, J ₁ (Fig. 4 and 5), the piston 3 is pulled down against an adjustable stop 4 by a magnet 6, which can also be replaced by a pneumatic pressure medium, and thus the eccentric arm L is moved from the ring bank eccentric m removed the distance A for the upper winding. This embodiment has the advantage that the height of the upper winding O can be changed in accordance with the setting of the stop 4.

The device works as follows: As soon as the ring rail B reaches its upper position corresponding to the tip of the head, the head is thus full, the ring rail operates the switch j and thus closes the circuit for the control switches S ₁ and S ₂ . The n _x at the control disk located, the switch S ₁ zugeordncte segment R ₁ is adjusted so that the switched via the control switch S ₁ the eccentric arm solenoid L while the angle of rotation ω of the Hauptexzenters diesemum of the distance A apart. For this short period of time, the ring rail will be over

ίο the tip of the head (see. Fig. 6, phase I: lifting) raised to the upper winding O (Fig. 6, phase II). After completion of the upper winding, the switch S ₂ is actuated by the likewise adjustable segment R ₂ , whereby the lifting magnet ends the deflection A of the eccentric arm L.

In addition, the servomotor K for the underwinding is put into operation via the switch S ₂ and thus the ring rail is lowered (FIG. 6, phase III: lowering), and a delay relay switches the machine off. The exact point in time at which the drive for the spindles, drafting devices and the program control is cut off is set so that the lower thread layers U (FIG. 6) during phase IV with the main motor switched off when it is running out

s5 spindles are formed.

This is followed by the withdrawal of the full bobbins and the insertion of empty tubes in phase V (Fig. 6). Then the reversed servomotor K is briefly switched on by actuating a push-button switch and thus the ring rail B is raised into the piecing position phase VI (FIG. 6). The machine is now ready for normal spinning with the usual switching mechanism.

Another embodiment of a lifting element for the upper winding is shown in FIGS. The eccentric lever L has a projection 1 on which a pressure roller 8 acts and deflects the eccentric lever beyond its maximum stroke by the distance A for the purpose of overwinding. The pressure roller 8 is mounted in a fork lever 10 which can be pivoted about an axis 9 mounted in a stationary manner in the machine frame 12. At the other end of the lever 10, the tie rod 2 engages via an intermediate member 11 and moves the lever 10 in the direction of the arrow P. In FIG shown in the rest position or when the projection 7 of the switching arm L is released . A magnet, as shown in the embodiment in FIG. 2, or a pneumatic or hydraulic pressure medium can be used as the moving element. In this embodiment, the program control is carried out as described above.

Claims (4)

Patent claims: 1. Device for automatic winding of yarn heads with upper and lower winding according to Patent 1062152, characterized by an am Winding eccentric lever (L) directly articulated as a lifting element for the upper thread control Serving, hydraulically or pneumatically or electromagnetically movable pull or push rod (2). 2. Device according to Patent 1 062 152, characterized in that the lifting member is a hydraulic or pneumatically or electromagnetically movable, acting directly on the eccentric lever (L) Pressure roller (8) is (Fig. 7 and 8), 3. Device according to claims 1 and 2, characterized by one of the ring rail in their upper end position actuated limit switch (j) to close the circuit for two electrical switches O ₁ and J ₂ ), which control the electromagnetic movement of the lifting member (Fig. 3 to 5). 4. Device according to claims 1 to 3, characterized by the following mechanical-electrical program circuit and their switching phases: After completion of the cops and after pressing the limit switch (j) through the ring rail (B) reached its upper end position, the circuit for the both control switches (J ₁ and J ₂ ) closed. The segment (R ₁ ) , which is adjustable on the control disc (%), _{actuates the control switch (J 1} ) so that the lifting element (2) the When reaching the tip of the main winding, the eccentric lever (L) briefly deflects over the normal stroke for the purpose of overwinding. After the overwinding has ended, the control switch (j ₂ ) is actuated by the segment (R ₂ ) that is adjustable on the control disk (W ₁ ), whereby the lifting element (2) ends the deflection of the eccentric lever for the purpose of overwinding and returns to its starting position and the underwind motor (K) is switched on. Considered publications:
U.S. Patents Nos. 1,835,058, 2,433,897,
558198, 2 574015. 1 sheet of drawings © ι 009 608/219 9.60