EP2886689A1 - Spinning machine and table holder - Google Patents

Abstract

A spinning machine, in particular ring spinning machine has a plurality of juxtaposed drafting with in punching (12) mounted, driven lower cylinders and arranged above it, held by a pendulum carrier and pressed against the lower cylinder and each forming a nip line top rollers. In the main drafting field of the drafting system, a guide device (1) of a respective circumferential lower and Oberriemchen (6, 7) is arranged, which by means of a guide table (10) of the Unterriemchens (7) along a fiber line running through the drafting sliver (13) a Feed roller pair (3) and wherein the guide table (10) extends along a plurality of drafting devices. The guide table (10) is mounted in table mounts (11) on the punches (12) and the respective table holder (11) has a receiving point (11.1), which cooperates with a corresponding receiving element (10.1) of the guide table (10). The position of the table seat (11) and / or the receiving point (11.1) and / or the receiving element (10.1) determines the inclination of the guide table (10) to influence the fiber line so that it from the direct line connecting the nip at the entrance the guide device (1) and the nip of the output roller pair (3) deviates. A corresponding table mount (11) has a contact surface (11.2) for attachment to a punch (12) of the spinning machine and a receiving point (11.1) which can cooperate with a corresponding receiving element (10.1) of the guide table (10).

Description

The invention relates to a spinning machine, in particular a ring spinning machine with a plurality of juxtaposed drafting systems mounted in punched, driven lower cylinders and arranged above it, held by a pendulum carrier and pressed against the lower cylinder and each forming a nip line top rollers, wherein in the main drafting zone of the drafting system Guiding device is arranged in each case from a circumferential lower and upper apron, which feeds a pair of output rollers along a fiber line through the drafting system by means of a guide table of the lower apron and wherein the guide table extends along a plurality of drafting devices and a table holder for receiving a guide table for a lower apron a guide device in a drafting system of a spinning machine.

Known ring spinning, air spinning or compact spinning machines have draw frames with double belts in the main drafting zone. The two belts guide the fibers to an output roller pair of the drafting system. As a rule, the drafting field runs largely in a straight line between the rollers of the double belts and the pair of delivery rollers. But it is also known that between the double belt and the pair of output rollers, a pin is arranged, which deflects the drafting system. The strength of the deflection depends on the desired yarn number and the drawn fiber material. Due to the wrapping of the fibers around the pin, the fibers in the area of the main drafting zone are better controlled, whereby the uniformity is improved and thick and thin places in the yarn are reduced. The yarn tensile strength can also be increased hereby.

A disadvantage of the use of the pin is that adjusted to the required deflection at each spinning station or in the drafting system of the pin must become. This requires at Spinnereimaschine with a variety of juxtaposed drafting a high workload. There is also the risk of misadjustment due to different settings on the various drafting systems.

Object of the present invention is thus to reduce the adjustment effort for the deflection and to ensure the uniform setting with a plurality of juxtaposed drafting.

The object is achieved with a spinning machine and a table holder with the features of the independent claims.

A spinning machine according to the invention, in particular a ring spinning machine, but also an air spinning or compact spinning machine has a plurality of juxtaposed drafting with mounted in punched, driven lower cylinders and arranged above it, held by a pendulum carrier and pressed against the lower cylinder and each forming a nip line top rollers , In the main drafting zone of the drafting system, a guide device is arranged which has a circumferential lower apron and upper apron. By means of a guide table of the lower apron, the guide device feeds a pair of delivery rollers along a fiber line through the drafting system. The guide table extends transversely to the fiberline along several of the drafting systems. According to the invention, the guide table is fastened in table mounts on the punches. The respective table holder has a receiving point, which cooperates with a corresponding receiving element of the guide table. The position of the table seat and / or the receiving point and / or the receiving element determines the inclination of the guide table to influence the fiber line so that it deviates from the direct line connecting the nip line at the entrance of the guide means and the nip line of the pair of output rollers. By the possibility the position of the To cause leadership tables by changing its attachment to the punches, it is now possible that, for example, the inclination of the guide table or the height of the guide table or the position within the main drafting field is changed. In particular, by changing the inclination of the guide table, it is possible that the yield field deflection is more or less increased. To adapt to the spinning yarn number or the spinning fiber material, the position or inclination of the guide table can be changed accordingly.

The fact that the guide table is arranged along several spinning positions, the adjustment of the position or inclination of the guide table can be done simultaneously for all drafting, which is associated with the guide table. With only one adjustment on each side of the guide table thus the same setting for several spinning stations or drafting systems can be achieved. By attaching the table holder to the punches of the spinning machine stable storage of the guide table is achieved. The punches are sturdy because they record in addition to the table shots and the bearings for the driven lower cylinder of the drafting. The setting of the guide table is uniform for all spinning stations, which are arranged along the guide table. The adjustment effort is thus reduced compared to the prior art and the same setting for many drafting systems, which are arranged side by side, ensured.

The guide table can be adjusted in different ways. It is on the one hand possible that the position of the table holder is changed with respect to the punch. The table holder can be attached to the punch in different positions. An alternative to this is that different receiving points are arranged in the table holder. The guide table can in this case used in one of the various receiving points of the table recording and fixed there become. Alternatively, it is also possible to provide several table shots with different receiving locations. Thus, there is a set of table seats for the different applications, each of the table shots has a different arrangement of the receiving position within the table recording. Another alternative is that the receiving element of the guide table is designed differently. This receiving element can either be made adjustable or it is provided a set of different guide tables available, which have a different arrangement of receiving elements. Depending on the application, another guide table can be used here.

In a particularly advantageous embodiment of the invention, the position of the table holder and / or the receiving point and / or the receiving element with respect to the punch and / or the guide table is changeable. These are preferably adjustable elements which can be fixed in different positions.

It when the table holder is fixedly arranged on the punch to determine a single position of the guide table is particularly advantageous. As a result, an incorrect setting can be avoided. It makes sense in this advantageous embodiment of the invention that various table shots are provided in order to realize different positions of the guide table can. In this case, it is only necessary, for example, that the table mount is exchanged on the punches, in order thus to achieve a change in inclination or position of the guide table that is changed from the previous table seat.

It is also particularly advantageous if the table mount and / or the receiving location and / or the receiving element are adjustable relative to one another or to the punch in order to be able to define a plurality of positions of the guide table. In this case it is necessary, not only fixed To use components, but to make a corresponding adjustment, which are advantageous to the present fiber material or to be spun yarn number. In particular, these are mutually movable or adjustable components, which can be fixed in the desired position.

Are the table seat and / or the receiving point and / or the receiving element to each other or to the punch adjustable so that they cause a pivoting movement of the guide table, it is advantageously ensured that a particularly fast and simple and feasible with a manageable possibility setting of Leadership tables can follow. Incorrect settings are largely excluded here, since only a pivoting movement of the guide table is possible and an adjustment in the longitudinal or transverse direction of the guide table is not possible.

If the pivoting movement of the guide table is provided around a center of the circle in the region of the inlet upper edge of the guide table, it is ensured that the fiber material, which is moved by the drafting device, is introduced uniformly and smoothly into the deflected drafting field. This very particularly advantageous embodiment of the invention thus enables a gentle deflection of the fiber material. Paragraphs within the Riemchenführung or the guide device are thus avoided. Fiber material is thus performed very gently.

If the guide table has an inclination of up to 20 °, preferably up to 12 ° with respect to the undeflected fiber line, then most of the fiber materials and yarn numbers processed in conventional spinning machines are to be stretched particularly advantageously. Which inclination is particularly suitable will be determined in individual cases by experiments.

If the guide table has an immersion depth in relation to the undeflected fiber line of up to 10 mm, preferably up to 3 mm, a particularly favorable yield field deflection is also achieved here for most fiber materials and yarn number.

A table mount according to the invention serves to receive a guide table for a lower apron of a guide device in a drafting system of a spinning machine. According to the invention, the table mount has a contact surface for fastening the table mount to a punch of the spinning machine. Furthermore, a receiving point is provided which can cooperate with a corresponding receiving element of the guide table. The position of the receiving location determines the inclination of the guide table to influence a fiber line such that it deviates from a direct line of connection between a nip line at the entrance of the guide means and a nip line of a pair of delivery rollers. The contact surface defines the position of the table mount with respect to the punch. A special adjustment effort is thereby avoided. A receiving point in the table holder is designed such that it serves to receive the guide table. Due to the interaction of the receiving point of the table seat and the receiving element of the guide table, the position of the guide table is determined and defined an inclination of the guide table with respect to the drafting field. In this way, a table seat can be created, which results in a certain inclination of the guide table. Thus, the adjustment of the guide table or its inclination as a function of the fiber material to be spun or the yarn number to be produced can be obtained through the table mount.

The position of the receiving location is preferably determined by the position of the contact surface. It is thus possible that a set of table mounts is provided, which have different contact surfaces. As a result, the inclination of the guide table can be determined differently be without the leadership table must be replaced. It is thus possible to obtain different inclinations of the guide table alone by other positions of the receiving point when using the same guide table.

It is also particularly advantageous if the position of the receiving location is determined by the position of the receiving point in the table recording. Again, a set of different table seats can be provided, which contain variations of the position of the receiving location. By using other table seats a different inclination of the guide table within the drafting is possible with the same guide table.

It is particularly advantageous if the position of the receiving location is adjustably arranged on the table mount. By adjusting it is possible that the inclination of the guide table is changeable by the receiving point is adjusted to the table seat. Make sure that the setting is correct. In any case, it is advantageous that the adjustment made applies to all drafting systems along which the guide table extends.

If the table mount has a shell in which the receiving location is pivotally mounted, a very simple adjustment of the receiving location can take place. After reaching the predetermined position of the receiving point within the shell, this receiving point can be fixed again and the corresponding inclination of the guide table is set.

If the receiving location is pivotable about a circular center in the region of an inlet upper edge of the guide table, then it is particularly advantageous that the stretching field deflection for the sliver takes place gradually and no steps or poorly supported areas of the lower apron available. A particularly good stretching of the sliver is achieved hereby.

Figur 1

eine Seitenansicht eines Teils eines Streckwerks mit einem geraden Führungstisch,

Figur 2

einen Ausschnitt aus einem Streckwerk gemäß Figur 1 mit einem geneigten Führungstisch,

Figur 3

eine Seitenansicht eines Ausschnitt eines Streckwerks mit einem geneigten Führungstisch mit einstellbarer Tischaufnahme,

Figur 4

eine Vorderansicht einer Tischaufnahme,

Figur 5

eine Draufsicht der Tischaufnahme der Figur 4 und

Figur 6

eine schematische Draufsicht auf acht Spinnstellen zwischen zwei Stanzen.

Further advantages of the present invention are described in the following exemplary embodiments. It shows

FIG. 1

a side view of a part of a drafting system with a straight guide table,

FIG. 2

a section of a drafting according to FIG. 1 with a tilted leadership table,

FIG. 3

a side view of a section of a drafting system with a tilted guide table with adjustable table,

FIG. 4

a front view of a table shot,

FIG. 5

a top view of the table shot the FIG. 4 and

FIG. 6

a schematic plan view of eight spinning stations between two punches.

FIG. 1 shows a side view of a section of a drafting system in a schematic representation. It is in this figure, only a guide device 1 with double belt 2 and a pair of output rollers 3 drawn. The pair of input rollers and a pendulum carrier, to which the upper rollers of the drafting system are attached, are not shown here. The guide device 1 has an upper belt roller 4 and a lower belt roller 5. On the upper belt roller 4, an upper belt 6 is arranged, which is deflected on a deflection device, not shown. The lower belt roller 5 is partially wrapped by a lower belt 7. The lower belt 7 is guided by means of a deflection roller 8. Furthermore The lower belt 7 wraps around a guide table 10, which is arranged in a table receptacle 11. The table holder 11 is attached via a contact surface 11.2 on a punch 12.

The top of the guide table 10 extends in this embodiment within the stretching field plane, in which a sliver 13 is passed through the drafting system. The guide table 10 is not inclined in this embodiment. The upper belt 6 is pressed by a corresponding device, not shown, against the lower belt 7 or guide table 10. The sliver 13 is guided through the upper belt 6 and the lower belt 7 and from the upper belt roller 4 and the lower belt roller 5 to the output roller pair 3. The area between the nip line of the upper belt roller 4 and the lower belt roller 5 and the nip of the pair of output rollers 3 represents the main drafting zone of the drafting system.

The guide table 10 is fastened by means of a receiving element 10.1 in a prism-like receiving point 11.1 of the table holder 11. As a result, his position is secured in a defined position. The guide table 10 extends, as will be seen in a later presentation, along several drafting. The attachment of the guide table 10 takes place in the punches 12 laterally next to a plurality of juxtaposed drafting.

In FIG. 2 is a drafting system like in FIG. 1 shown. In contrast to the drafting system FIG. 1 is in FIG. 2 used a modified table seat 11 '. Despite the same guide table 10 is caused by the changed table mount 11 'and receiving point 11.1 an inclination α of the guide table 10 relative to the original drafting field S. The sliver 13 is thereby deflected downwards in the main drafting zone, since the guide table 10 is inclined by the angle α, which is preferably less than 20 °. The sliver 13 dives around the height H, which preferably smaller than 10 mm or more preferably smaller than 3 mm, thereby causing a greater wrap around of the upper belt 6 and the lower roller 19 of the pair of outfeed rollers 3. As a result, the fibers are better controlled in the main drafting field. Only by changing the table holder 11 to 11 ', this change in the sliver run is effected. The upper belt 6 is thereby tracked by a corresponding pressure device, which takes place in the receptacle of the upper belt 6 and the upper rollers of the drafting system in the pendulum carrier, the inclined upper edge of the guide table 10.

In FIG. 3 an inclined guide table 10 is also shown. The inclination takes place in that the table mount 11 "interacts with a base body 14 such that different positions of the receptacle for the guide table 10 are obtained by a displacement along a curved surface similar to a shell 11.3 of the main body 14 or the receptacle of the table seat 11" , As a result, a different inclination α of the guide table 10 can be effected by a different fastening of the table mount 11 "on the main body 14. Preferably, the curved surface of the main body and the table seat 11" is circular, the circle center M being in the region of the inlet of the sliver 13 is located at the top of the guide table 10. As a result, changing the inclination α of the guide table 10 does not change the point at which the sliver 13 first reaches the area of the guide table 10. As a result, a uniform and gradual deflection of the sliver 13 from the original drafting field of the or the fiber line is effected. The immersion depth H and the inclination angle α can thus be fixed in many different positions without adversely affecting the run of the sliver 13.

FIG. 4 shows a schematic representation of a table seat 11. The table holder 11 is by means of openings 15 on the contact surface 11.2 on the punch 12 or the bearing support, not shown, of the lower roller the output roller pair 3 or the lower belt roller screwed. The table holder 11 has lateral receptacles 16, in each of which a guide table 10 can be inserted. If such a table mount 11 is arranged on each punch 12 of the machine, the guide table 10 can be inserted into the receptacles 16 of adjacent table mountings 11 between the two punches and fixed there.

In FIG. 5 is a plan view of the table seat 11 of the FIG. 4 shown. The two receptacles 16 for two adjacent guide tables 10 are similar to in FIG. 1 formed prismatic. As a result, a secure fixation of the guide table 10 in the table holder 11 and their recordings 16 is ensured.

In FIG. 6 is a schematic plan view of several drafting, which are shown only in part, to see. Between two punches 12 eight lower belt 7 are shown. A lower input roller 18, lower belt roller 5 and lower output roller 19 are each mounted in the punches 12. In the punches 12 each have a table holder 11 is attached. In the table seats 11 guide tables 10 are arranged. The lower belts 7 are placed around the lower belt roller 5 and the guide table 10 and guide a sliver 13 along the fiber line 17 through the drafting or the main drafting zone of the drafting system. It can also be seen from this representation that adjacent guide tables 10 are arranged in a table receptacle 11. Of course, it is also possible that the guide table extends over less than the eight drafting systems shown here or is arranged on both or on each side of the guide table a separate table seat.

The present invention is not limited to the illustrated embodiments. Changes within the scope of the claims are possible at any time. In particular, it is also possible that the change in the position of the guide table 10 not only by a table seat 11, but in addition or even by a change in the recordings on the guide table 10 itself. Thus, in this case, for example, the table seat 11 remain the same, while the guide table 10 receives a modified or adjustable recording. Also, it is of course possible that in the guide table 10 not, as shown in these embodiments, a spring is arranged as a receiving element 10.1, which engages in a groove as receiving position 11.1 of the table seat 11, but that conversely the table holder 11 has a spring which engages in a groove in the guide table 10.

Claims (14)

Spinning machine, in particular ring spinning machine with a plurality of juxtaposed drafting with in punching (12) mounted, driven lower cylinders and arranged above it, held by a pendulum carrier and pressed against the lower cylinder and each forming a nipline upper rollers, wherein in the main drafting zone of the drafting a guide device ( 1) is arranged in each case from a circumferential lower and Oberriemchen (6, 7), which by means of a guide table (10) of the Unterriemchens (7) along a fiber line through the drafting running sliver (13) an output roller pair (3) supplies and wherein the guide table (10) extends along several of the drafting devices, characterized in that the guide table (10) in table mounts (11) on the punches (12) is fixed and the respective table holder (11) has a receiving point (11.1), which with a corresponding receiving element (10.1) of the guide table (10) cooperates and that the position of the table seat (11) and / or the receiving point (11.1) and / or the receiving element (10.1) determines the inclination of the guide table (10) in order to influence the fiber line so that they direct connection line between the nip at the entrance of the guide device (1) and the nip of the pair of output rollers (3) deviates. Spinning machine according to the preceding claim, characterized in that the position of the table holder (11) and / or the receiving point (11.1) and / or the receiving element (10.1) with respect to the punch (12) and / or the guide table (10) changeable is. Spinning machine according to one or more of the preceding claims, characterized in that the table holder (11) is fixedly arranged on the punch (12) in order to determine a single position of the guide table (10). Spinning machine according to one or more of the preceding claims, characterized in that the table holder (11) and / or the receiving point (11.1) and / or the receiving element (10.1) to each other or to the punch (12) are adjustable to a plurality of positions of the Guide tables (10) to determine. Spinning machine according to one or more of the preceding claims, characterized in that the table holder (11) and / or the receiving point (11.1) and / or the receiving element (10.1) to each other or to the punch (12) are adjustable so that they pivot of the guide table (10) effect. Spinning machine according to one or more of the preceding claims, characterized in that the pivoting movement takes place about a circle center in the region of the inlet upper edge of the guide table (10). Spinning machine according to one or more of the preceding claims, characterized in that the guide table (10) has an inclination (α) of up to 20 °, preferably up to 12 ° with respect to the undeflected fiber line. Spinning machine according to one or more of the preceding claims, characterized in that the guide table (10) has an immersion depth (H) with respect to the undeflected fiber line of up to 10 mm, preferably up to 3 mm. Table mount for receiving a guide table (10) for a lower apron (7) of a guide device (1) in a drafting system of a spinning machine according to the preceding claims, characterized in that the table mount (11) has a contact surface (11.2) for attachment to a punch (12 ) of the spinning machine and a receiving point (11.1) which can cooperate with a corresponding receiving element (10.1) of the guide table (10) and that the position of the receiving point (11.1) determines the inclination (α) of the guide table (10) to a fiber line to be influenced such that it deviates from a direct connection line between a nip line at the entrance of the guide device (1) and a nip line of a pair of output rollers (3). Table holder according to the preceding claim, characterized in that the position of the receiving point (11.1) by the position of the contact surface (11.2) is fixed. Table holder according to one or more of the preceding claims, characterized in that the position of the receiving point (11.1) by the position of the receiving point (11.1) in the table holder (11) is fixed. Table seat according to one or more of the preceding claims, characterized in that the position of the receiving point (11.1) is adjustably arranged on the table receptacle (11). Table holder according to one or more of the preceding claims, characterized in that the table holder (11) has a shell (11.3), in which the receiving point (11.1) is pivotally mounted. Table seat according to one or more of the preceding claims, characterized in that the receiving point (11.1) about a circular center (M) in the region of an inlet upper edge of the guide table (10) is pivotable.

Images