EP1038058B1 - Texturing machine - Google Patents

Description

The invention relates to a texturing machine according to the preamble of claim 1 and to the preamble of claim 8.

Such a texturing machine is known from WO 98/33963.

In the known texturing several master coils are arranged one above the other in a gate frame, each providing a thread for a processing point in the machine. To deduct and to promote the threads or for drawing the threads several delivery plants are arranged one behind the other in the machine. In this case, the first delivery mechanism is arranged above the gate frame in order to pull the thread from the supply spool and to convey it into a false twist texturing zone. As a result of this arrangement, the thread can be conveyed directly to a heating device within the false twist texturing zone without deflection from the delivery mechanism. At the beginning of the process, however, it is necessary for the delivery of the thread to be guided from the operating position to an operating position. For this purpose, the delivery mechanism is mounted on a carriage, which can be moved by means of a linear drive along a guide rail. Here, significant differences in height between the lower operating position and the upper operating position must be overcome. In this case, a high power transmission to move the carriage with the delivery plant is required. Furthermore, the delivery mechanism must be positioned extremely accurately in the operating position, so that the yarn path in the subsequent heating device can take a desired course for the treatment of the thread.

Furthermore, the two delivery mechanisms are driven with a speed difference, wherein the first delivery mechanism is operated at a lower speed in relation to the second delivery mechanism. In the known Texturing machine is the delivery mechanism in front of the texturing zone designed as a conveying roller, in which the thread is conveyed in a thread running track on the circumference of the conveying roller substantially without slippage by friction. In order to apply the friction force required for the promotion of the thread, a minimum looping around the circumference of the feed roller and a thread running track for Querauslenkung of the thread in the wrap is required. However, such an embodiment of the delivery mechanism requires a minimum yarn tension during the first application of the thread in order to insert the thread in the thread running track of the conveyor roller. Furthermore, the speed difference between the adjacent delivery mechanisms as well as the friction acting on the thread by the conveyor roller during the application leads to considerable thread tension differences. However, threading, in which the speeds of the delivery mechanisms are changed, is only limitedly possible with coupled drives of the delivery mechanisms of neighboring processing stations.

Thus, the invention has the object, the texturing machine of the type mentioned in such a way that the height adjustment of the delivery mechanism and the application of the thread in a simple manner and without great effort by an operator is executable. Furthermore, it is an object of the invention to provide a texturing machine, in which the thread when reaching the operating position of the delivery system despite speed differences in the delivery plants gently and without significant changes in thread tension in a processing point of the texturing machine can be applied and gently introduced into the heater.

The object is achieved by a texturing machine with the features of claim 1 and by a texturing machine with the features of claim 8.

Advantageous developments of the invention are defined in the subclaims.

The texturing machine according to the invention is characterized in that the delivery mechanism can be guided along the guide rail with uniform stability, regardless of its position. The thread may already be guided in the operating position in the delivery mechanism, since the transverse forces transmitted by the thread to the delivery mechanism are reliably absorbed by the guided slide during movement of the delivery mechanism. For this purpose, the carriage on at least one sliding element that is guided in the guide rail and is coupled via a connecting means with the drive. The connecting means between the drive is designed so that a secure guidance of the sliding element is ensured in the guide rail to reach the operating position and a power transmission for a smooth movement.

In a particularly advantageous embodiment of the invention, the connecting means is formed by a magnetic piston which is guided in a cylinder by means of compressed air and which is connected by magnetic forces with the sliding element. Due to the direct connection between the slider and the piston controlled by the drive, the carriage and thus the delivery can be positioned very accurately reproducible, which stabilizes the yarn path in the operating position.

The combination between a cable and the drive advantageously large weights and long distances can be bridged. For this purpose, the carriage is guided with the delivery mechanism by a sliding element on the guide rail. The slider is connected by a cable to the drive. The cable runs along the guide rail, so that upon actuation of the drive only a force acting in the direction of travel on the slider. The force is transmitted through the cable. Disturbances caused by shear forces are thereby locked out. The drive is preferably formed by a piston-cylinder unit, in which the piston in the cylinder is controlled by compressed air. Thus, the delivery mechanism can be moved quickly and precisely between the lower operating position and the operating position. However, it is also possible to keep the delivery mechanism in any position between the operating position and the operating position. Such a holding position can be achieved by pressurizing both sides of the piston within the cylinder.

In order to allow the most sensitive possible control of the movement of the carriage, the development according to claim 4 is particularly preferred. Here, the cable consists of two ropes, which are arranged on both sides of the sliding element and are guided in each case via an upper and a lower roller to the cylinder. The cylinder is arranged parallel to the guide rail, so that the ropes are respectively guided at the ends of the cylinder through an inlet into the cylinder and connected to the piston.

To avoid greater losses of compressed air during the control of the piston in the cylinder, it is proposed to arrange a seal in the inlet of the cylinder through which the cable is guided.

According to a further embodiment according to claim 6, a control valve is used to control the piston-cylinder unit. The control valve is designed such that the piston is controllable both in its direction and in its speed, so that the movement of the sliding element in its direction of travel and in its travel speed is variable. This training is particularly advantageous to retract the delivery plant in the operating position. In this case, the travel speed can be reduced shortly before reaching the operating position, so that a slow and thus safe retraction into the operating position is possible. This is particularly advantageous for inserting the thread in the heating device. at Such texturing machines are preferably used heating devices in which the heating surfaces have a temperature which is greater than the melting temperature of the thread material. Thus, it can be prevented by the slow retraction into the operating position that the thread gets into improper contact of the heating surface and thereby melts or burns.

In a further particularly preferred embodiment of the texturing machine according to the invention, the carriage is connected to the delivery mechanism by a pivoting means with the sliding member, wherein the carriage in the operating position by the pivoting means from a sliding position in an articulated position and vice versa is pivotable. This training provides a further solution to the underlying problem. The particular advantage of this invention is that in the deflection position of the carriage, the delivery plant has reached its final operating position. Thus, for example, the application of the thread in the heater can be carried out solely by adjusting the carriage between the sliding position and the deflection position. The movement of the swivel gear can be controlled, for example by approaching a stop or by a separate drive. Furthermore, thereby the Fadenumschlingung can be influenced, so that the Umschlingsreibung required to promote the thread at the delivery plant, for example, is reached only in the deflection position.

In a particularly advantageous embodiment of the invention according to claim 9, a thrust element is mounted slidably on the guide rail in addition to the sliding element. The sliding element and the pushing element are connected by the pivoting gear to the carriage, wherein the movement of the pivoting gear is effected by a relative movement between the sliding element and the pushing element on the guide rail. Thus, the swivel gear can be controlled in its movement by the linear drive, so that Both the height adjustment and the pivoting movement of the delivery mechanism can be carried out by simple handling.

In order to realize a compact unit as possible, it is proposed to carry out the swivel gear as a simple crank. For this purpose, the carriage is connected via a pivot axis with the thrust element. Between the slider and the carriage, a pivot arm is mounted with hinges. As a result, can be pivoted by relative movement between the slider and the thrust element of the carriage on the pivot axis.

The relative movement between the pushing element and the sliding element can be easily achieved by simply blocking the non-driven element with respect to the driven element. In the present case, the sliding element is coupled to the linear drive, so that the thrust element must be blocked to trigger the relative movement on the guide rail.

For this purpose, a stop at the end of the guide rail is provided according to claim 11, which is achieved in the operating position of the thrust element. Now that the thrust element bears against the stop, the further drive of the sliding element by the linear drive causes the carriage is guided guided on the pivot arm. It is particularly advantageous if the thrust element is arranged in front of the sliding element on the guide rail in the direction of travel to the operating position. As a result, the deflection position can be fixed by the stop of the sliding element to the thrust element.

Particularly advantageous is the development of the texturing machine according to the invention according to claim 12. In this case, the pivoting gear takes in the deflection position of the carriage in relation to the sliding element and the Thrust element such a position that the transmitted forces lead to a self-locking of the sliding element and the thrust element on the guide rail. The delivery mechanism is thus firmly locked in its operating position. Only when the sliding element is activated by the linear drive to move to the operating position, the self-locking triggers.

The height adjustment of the delivery mechanism can take place in the texturing machine according to the invention with or without drive of the delivery mechanism. In the event that the drive is mounted together with the delivery mechanism on the carriage and can be moved from the operating position to the operating position, the development of the invention according to claim 13 provides a solution in which the drive in the operating position detachably connected to a power supply terminal is. Depending on the design of the drive, thus the energy can be produced by means of a mechanical coupling or an electrical plug contact the connection between an energy source and the drive.

In a particularly advantageous embodiment of the texturing according to the invention according to claim 14, the delivery mechanism is designed as a conveyor roller, which has a zigzag-shaped thread running track on the circumference. Such a conveyor roller is known, for example, from DE 196 52 620 (Bag 2359). To achieve the transport speed, it is necessary that the thread wraps around the conveyor roller in certain dimensions. Thus, by adjusting the carriage between the sliding position of the deflection position advantageously the Umschlingungsgrad be influenced on the conveyor roller. In the Auslenkstellung thus a large wrap is needed. In contrast, only a small looping is required in the sliding position, which must allow only one application of the thread in the operating position.

When using a conveyor roller is known that the thread is conveyed with a conveyor roller only slip-free when acting on the thread Frictional forces are large enough. In this case, the frictional forces are generated by the thread wraps on the conveyor roller and the guide elements of the conveyor roller. If the frictional forces are too low, slippage occurs between the yarn and the conveyor roller, ie the yarn slides relative to the contact surfaces of the conveyor roller. This effect is now used in particular for applying the thread and leads to a further solution of the underlying task. For this purpose, in the texturing machine according to the invention, the thread is initially conveyed by means of a guide means without contact to the thread running track on the circumference of the conveying roller by at least one adjacent delivery mechanism. The thread is guided in this phase at a speed that is determined by the adjacent delivery plant. To stretch the thread, the speeds of the delivery mechanisms are different, so that a draw tension in the thread can build up. The speed difference or the stretching tension is then slowly built up by movement of the guide means until the guide means has reached the operating position. This avoids sudden deceleration or acceleration to the differential speed of the adjacent delivery system. This solution also has the advantage that it is possible to create in a fixed delivery plant.

In a particularly advantageous embodiment of the invention, the thread is guided only in the Anlegstellung of the guide means by the guide means. In the operating position of the guide means, the thread is conveyed exclusively by the conveyor roller. The guide means has no contact with the thread. This design has the advantage that no additional thread deflection and thus wrap friction occurs by the guide means during the processing of the thread. The thread is passed here by movement of the guide means for conveying roller.

In order to realize the smallest possible thread deflections in the Anlegstellung, the development of the invention according to claim 19 is particularly advantageous.

Here, an Anlegblech is arranged at a distance from the conveyor roller such that the yarn guide track and thus the guide elements of the conveyor roller are covered. The thread is thus guided in the Anlegstellung on the surface of the Anlegblechs.

A particularly compact design and a particularly gentle thread guide can be carried out with the particularly advantageous development of the invention according to claim 20. The Anlegblech thus has a similar relation to the conveyor roller curvature, so that the deflection of the thread in the Anlegstellung over the entire Umschlingungsbereich is uniform and very small executable. By the movement of the Anlegblechs in the circumferential direction of the conveying roller also a gentle dipping of the thread is effected in the thread running track of the conveying roller.

In order to influence the degree of Fadenumschlingung on the Anlegblech in the Anlegstellung or the degree of Fadenumschlingung on the conveyor roller in the operating position, it is proposed to attach a Einlauffadenführer and a Auslauffadenführer to the Anlegblech, which are spaced in the circumferential direction of the feed roller with distance.

The movement of the guide means can be performed in a simple manner by a pivoting arm, wherein the pivoting arm is attached at one end to a pivot bearing.

In a particularly advantageous embodiment of the texturing machine according to the invention, a guide device is provided which has a guide groove formed concentrically with the circumference of the conveyor roller. In this guide the guide means between the Anlegstellung and the operating position is performed.

The movement of the guide means can be carried out both by an independent drive or by auxiliary equipment for threading.

Further advantages and some embodiments of the invention are described in more detail with reference to the accompanying drawings.

Fig. 1

eine schematische Ansicht einer erfindungsgemäßen Texturiermaschine;

Fig. 2 und 3

schematisch weitere Ausführungsbeispiele eines höhenverstellbaren Lieferwerks;

Fig. 4.1 und 4.2

schematisch ein weiteres Ausführungsbeispiel eines höhenverstellbaren Lieferwerks;

Fig. 5

schematisch eine Draufsicht auf das höhenverstellbare Lieferwerk gemäß Fig. 4.

Fig. 6

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Texturiermaschine;

Fig. 7

ein weiteres Ausführungsbeispiel einer Förderrolle mit Führungsmittel;

Fig. 8

ein weiteres Ausführungsbeispiel einer Förderrolle mit Anlegblech.

They show:

Fig. 1

a schematic view of a texturing machine according to the invention;

FIGS. 2 and 3

schematically further embodiments of a height-adjustable delivery system;

Fig. 4.1 and 4.2

schematically a further embodiment of a height-adjustable delivery mechanism;

Fig. 5

schematically a plan view of the height-adjustable delivery mechanism according to FIG. 4th

Fig. 6

a further embodiment of a texturing machine according to the invention;

Fig. 7

Another embodiment of a conveyor roller with guide means;

Fig. 8

a further embodiment of a conveyor roller with Anlegblech.

In Fig. 1, an embodiment of a texturing machine according to the invention is shown schematically. Here, a half of a semi-automatic false twist texturing machine is shown. Since both machine halves are mirror images of each other, only one half of the double machine is shown in Fig. 1 and described.

The machine has a gate frame 2 and a winding frame 1. In the gate frame 2 a plurality of original spools 7 are arranged one above the other in a tiered manner. Between the gate frame 2 and the winding frame 1, a control / Doffgang 5 is formed. Above the machine frames, the first delivery mechanism 13, the heating device 18 and the cooling device 19 are arranged in one plane. A false twist unit 20 and a second delivery mechanism 21 are supported on the process frame 3. The process frame 3 is arranged on the side opposite to the gate frame 2 side of the winding frame 1. Winding frame 1 and process frame 3 are joined together directly. In the process rack 3, a second heater 22 is arranged below the second delivery mechanism 21. The winding frame 1 serves to accommodate the winding devices 9. Here again a plurality of winding devices are arranged one above the other in a tiered manner. In each of the winders, the yarn is wound into a yarn package 25. The thread bobbin 25 is arranged on a spindle, which is driven by a friction roller 24. Before the yarn package a traversing device 26 is inserted in the yarn path. The take-up device 9 is preceded by a third delivery mechanism 23.

In this arrangement, the thread 4 is withdrawn by the first delivery mechanism 13 from the supply spool 7 via the head thread guide 12 and conveyed into the false twist texturing zone. The false twist texturing zone is limited by the false twist unit 20 and the delivery mechanism 13. Within the false twist texturing zone, the heating device 18 and the cooling device 19 are arranged in one plane. At the exit of the false twist texturing zone, the second delivery mechanism 21 is arranged to receive the thread from the false twist texturing zone deduct and promote in the second heater 22. The first delivery mechanism 13 and the second delivery mechanism 21 are driven at a speed difference so that the yarn is drawn simultaneously within the false twist texturing zone. The thread 4 is withdrawn from the second heater 22 by the third delivery mechanism 23 and conveyed to the take-up device. In the winding device 9, the thread is then wound up into a thread bobbin 25. After the bobbins 25 are finished, bobbin change is performed on the false twist texturing machine by means of a doffing machine. For this purpose, the full bobbins are removed from the winding device 9 and created new empty tubes. During this time, the thread is picked up by means of a suction device and guided to a waste container.

For post-treatment of the thread in the second heater 22 can also be advantageously arranged between the second delivery mechanism 21 and the heater input 22, a further delivery plant. Thus, a speed difference between the delivery mechanism before the second heater 22 and the third delivery mechanism 23 may be set.

In the example shown in FIG. 1, the delivery mechanisms 21 and 23 are arranged stationarily in the machine. The delivery mechanisms 21 and 23 can be designed, for example, as clamping delivery mechanisms with a shaft and an adjacent pressure roller or pressure belt. The first delivery mechanism 13 is formed by a conveyor roller 30, as is known from DE 196 52 620 (Bag 2359). In that regard, reference is made at this point to this document. The conveyor roller 30 is attached to a height adjustable slide 32 by a motor (not shown). Since the delivery mechanism 13 is arranged above the gate frame 2 in a position not reachable by an operator, the conveying roller 30 can be moved with the carriage 32 on a guide rail 33 between the illustrated operating position 34 and an operating position 35 arranged below the operating position 35 (shown in dashed lines). move. For this purpose, the carriage 32 is connected to a sliding element 36. The sliding member 36 is at the Guide rail 33 out. In the plane of movement of the sliding element 36, a cable 37 is arranged. By the cable 37, the slider 36 is connected to a drive 38. The drive 38 can be controlled manually via a control unit 41 such that the sliding member 36 and thus the carriage 32 moves with the delivery mechanism 13 along the guide rail 33. The cable 37 may in this case for example consist of a cable 42 which is fastened with its ends to the sliding element 36. At the ends of the guide rail 33, the cable 42 is deflected over the rollers 39 and 40 and connected to a drive 38. About the drive 38, the cable is moved in the direction parallel to the guide rail, so that the sliding member 36 is moved to the carriage 32 and the delivery mechanism 13. The drive 38 can be controlled manually via a control unit 41. In this case, an electrical, electro-mechanical, electropneumatic or pneumatic drive for actuating the cable can be used.

To apply a thread 4 in a processing point, the thread 4 is received via a hand-held suction gun. An operator inserts the thread into the individual processing stations. For this purpose, the first delivery mechanism 13 is guided into the lower operating position 35. In the operating position, the delivery mechanism 13 is not driven. The thread 4 thus slides with the suction speed on the conveying surfaces of the conveying roller 30. In the used feed roller 30, in which the thread is zig-zag-shaped guided on a peripheral surface, the thread slides over the guide elements on the circumference of the conveying roller 30. Nach dem Applying the thread, the delivery mechanism 13 is moved by activation of the drive 38 from the operating position 35 in the operating position 34. In the operating position 34, the drive of the conveyor roller 30 is activated so that the thread 4 is conveyed through the delivery mechanism 13.

The texturing machine shown in Fig. 1 is exemplified in its frame structure. The gate frame 2, the winding frame 1 and the process rack 3 can be combined in different ways. It is possible that between the process frame and the winding frame 1, a further operating gear is formed. Likewise, the machine can be fully automatic, so that the bobbin change is done automatically in the machine. It is also possible that the second delivery mechanism 21 and / or the third delivery mechanism 23 are designed to be movable. Because the invention is not limited to that a height difference between the operating position and the operating position must be overcome. Rather, can be carried out by the invention, each delivery system for applying the thread from an accessible area in an easily accessible to the operator area movable. It is advantageous if the second and / or third delivery mechanism are also designed as a conveyor roller.

In the embodiments shown below, the components with the same functions have been identified by identical reference numerals for the sake of clarity.

FIG. 2 shows a further exemplary embodiment of a movable delivery mechanism, as can be used in the texturing machine from FIG. The delivery mechanism is formed by a conveyor roller 30. The conveying roller 30 is rotatably attached to the carriage 32. The conveyor roller 30 is driven by a - not shown here - electric motor. The electric motor is also attached to the carriage 32 and can be powered by an energy chain, for example. However, it is also possible that the electric motor via a plug contact in the operating position is detachable with a power supply terminal.

The carriage 32 is connected to a sliding member 36. The sliding element 36 is guided on the profiled guide rail 33. The guide rail 33 has at its ends in each case a stop 49 and 50. The stop 49 and the stop 50 are arranged in the path of movement of the sliding element 36 and define upon contact of the sliding element 36 an operating position and a Operating position. The sliding member 36 is coupled via a cable 37 with the drive 38. The drive 38 is designed as a piston-cylinder unit, wherein the cylinder 44 extends substantially parallel over the length of the guide rail 33. In the cylinder 44, a piston 45 is guided. The piston 45 is fixedly connected at its end faces with a respective cable 42.1 and 42.2 of the cable 37. The cable 42.1 is led out of the cylinder 44 via an inlet 46.1 formed at the end of the cylinder 44 and deflected via a roller 40. The roller 40 is attached to one end of the guide rail 33. The deflected end of the cable 42. 1 is fastened to the sliding element 36.

The attached to the opposite end face of the piston 45 cable 42.2 is guided over an introduced on the opposite side of the cylinder 44 inlet 46.2 to the outside and deflected by the roller 39 arranged in the end region. The other end of the cable 42.2 is attached to the slider 36. Thus, the sliding member 36 and the piston 45 are connected via the tensioned cables 42.1 and 42.2.

The cylinder 44 has in its end regions in each case a compressed air connection 48.1 and 48.2. The compressed air connections 48.1 and 48.2 are connected via lines to a control valve 43. The control valve 43 connected to a compressed air source 51, so that by actuation of the control valve 43, the piston 45 can be acted upon mutually on one side or simultaneously on both sides with compressed air. For example, if compressed air is fed into the upper chamber of the cylinder 44, then the control valve 43 would have to be brought into the left switching position. In this switching position, the piston 45 is moved toward the inlet 46.2 due to the pressure gradient in the cylinder 44. By the transmission to the cable 37 thus takes place a movement of the sliding member 36 in the direction of the stop 49. To avoid larger losses of compressed air in the inlet 46.1 a seal 47.1 is arranged, through which the cable 42.1 is guided. Accordingly, in the inlet 46.2 a seal 47.2 is inserted, through which the cable 42.2 is guided.

However, it is also possible that the piston is formed by a magnet which controls a ring segment on the circumference of the cylinder via magnetic connection. In this case, the cables 42.1 and 42.2 could be attached to the ring segment. Such an arrangement has the advantage that no compressed air losses occur.

The cable 37 shown in Fig. 2 may advantageously be supplemented by a plurality of pulleys. Likewise, the ropes can be 42.1 and 42.2 run as cable sections of a continuous rope.

In Fig. 3, a further embodiment of a movable delivery mechanism is shown. The illustrated arrangement differs from the delivery mechanism shown in FIG. 2 by the embodiment of the connecting means between the sliding element 36 and the drive 38. The carriage 32 is guided via the sliding element 36 in the profile guide rail 33. Parallel to the guide rail 33, a pneumatic drive 38 is arranged. The drive 38 is designed as a piston-cylinder unit, wherein the cylinder 44 extends substantially parallel over the length of the guide rail 33. In the cylinder 44, a magnetic piston 66 is guided. On the outside of the cylinder 44, the sliding element 36 has a magnetizable sliding shoe 83. The sliding shoe 83 is connected by magnetic forces with the magnetic piston 66 in the interior of the cylinder 44, so that upon movement of the magnetic piston 66 of the shoe 83 on the cylinder wall and thus the sliding member 36 is guided along the guide rail 33.

The movement of the magnetic piston 66 is controlled via the control valve 43. The control valve is connected on one side to a pressure source 51 and on the opposite side to one end of the cylinder 44. By actuation of the control valve 43, the magnetic piston 66 can be apply compressed air alternately on one side or simultaneously on both sides.

In Fig. 4 and 5, a further embodiment of a movable delivery mechanism is shown, as it would be used for example in a texturing machine of FIG. In Fig. 4.1 the delivery mechanism is shown in the operating position with swung carriage in the deflection position. In Fig. 4.2 the delivery mechanism is shown in the sliding position when not swung out carriage. In Fig. 5 is a plan view of the delivery mechanism in the sliding position shown shortly before reaching the operating position. Unless otherwise stated, the following description applies to FIGS. 4.1, 4.2 and 5.

On the carriage 52, the conveyor roller 30 is rotatably mounted. The carriage 52 is connected via a pivoting gear 55 with a sliding member 36 and a pushing element 56. The pivoting gear 55 in this case consists of a pivot axis 57, through which the carriage 52 is pivotally coupled to the thrust element 56. Between the sliding member 36 and the carriage 52, a pivot arm 58 is provided, which is connected in its end regions via a rotary joint 61 with the carriage 52 and the pivot 62 with the sliding member 36. The slider 36 and the pusher 56 are spaced apart. In this case, the rotary joint 61 is located on the carriage 52 between the sliding member 36 and the thrust element 56. The sliding member 36 and the thrust element 56 are guided in a guide rail 33 in a row. Here, the sliding member 36 is coupled by a cable 37 to the drive 38. The cable 37 and the drive 38 may in this case be designed according to the embodiment shown in FIG. In that regard, reference is made to the description of FIG. 2 at this point.

The guide of the carriage 52 on the guide rail 33 takes place in the position shown in Fig. 5. In this sliding position, the thrust element 56 and the sliding member 36 are spaced apart so far that the pivot 61 on Carriage 52 lies in a plane transverse to the guide rail 33 between the sliding member 36 and the pusher member 56. In this position, the sliding member 36 is moved over the cable 57. By the weight of the conveyor roller 30 and the carriage 52, a thrust force is exerted on the thrust element 56 via the gear members, so that the thrust element 56 moves in the same direction to the sliding member 36 on the guide rail 33. At the end of the guide rail 33, the stopper 49 is formed, which fixes the operating position. As the sliding movement progresses, first the thrust element 56 will abut the stop 49. Thus, the further movement of the thrust element 56 is blocked. However, the sliding member 36 is still moved by the linear drive and the cable 57 in the direction of the stop 49. This creates a relative movement between the thrust element 56 and the sliding member 36 on the guide rail 33. The relative movement causes the carriage 52 is pivoted out of its sliding position 60 by the pivot arm 57. In this case, the length of the pivot arm 58 is dimensioned such that, as the movement progresses, the sliding element 36 abuts against the thrust element 56. As a result, a deflection position 59 of the delivery mechanism or of the carriage 52 is achieved. In this situation, the pivot 61 between the pivot arm 58 and the carriage 52 lies in a plane transverse to the guide rail which lies below the sliding element and the pusher element. This design of the pivoting gear ensures that the weight force acting on the sliding element generates a holding force acting in the direction of the stop 49. For a self-locking of the sliding element and the thrust element of the guide rail is effected.

In Fig. 4.1, the input of the heater 18 and the yarn path of the thread 4 in the texturing machine is located. It can be seen that the thread 4 is inserted only in the deflection position 59 of the delivery system in the heater 18. In the sliding position 60 of the thread 4 is still performed outside the heater despite reaching the operating position. This can be a gentle insertion and a quick lead out of the thread 4 from the heater 18 cause.

In Fig. 5, the conveying roller is formed as a disc 27. The disk 27 has on the circumference a U-shaped groove 28. In the U-shaped groove 28 mutually in the groove base a plurality of guide elements 80 are arranged such that adjusts a zigzag-shaped yarn guide track 31 in the groove base on the circumference of the disc 27. The conveyor roller is fixedly coupled to a drive shaft 53 which is driven by the electric motor 54. The motor 54 has a rigid conduit 63, at the free end of a plug 64 is arranged. The plug 64 is coupled in the operating position with an electrical power supply terminal 65. About this connector, the motor 54 is connected to a power source. The drive shaft 38 is driven for rotation, so that the conveying roller 30 promotes a thread 4 inserted in the thread running track 31. The overlap of the guide elements 29 of the conveyor roller 30 are formed so that the friction generated by the thread 4 prevents sliding of the thread on the peripheral surface of the disc 27. Thus, the thread 4 receives a predetermined by the rotational speed of the conveyor roller 30 thread speed.

The pivoting device shown in Fig. 4 and 5 for pivoting the delivery mechanism in the operating position is exemplary. Basically, each pivoting gear, which transmits a pivoting movement, between the carriage and the sliding element is possible. For example, a pivoting of the carriage is already achieved by a pivot arm, which is connected in swivel joints with the carriage and the sliding member. For this purpose, the swivel arm is connected to a beyond the swivel joints approach, which is guided against a stop, so that the pivot arm causes a change in the carriage position. However, it is also possible to provide a pivoting gear with its own drive to move the carriage or the delivery mechanism in the deflection position.

In Fig. 6, a processing point of another embodiment of a texturing machine is shown. Here, in Fig. 6.1, the processing point at Applying the thread shown, and in Fig. 6.2, the processing point is shown in operation. Unless otherwise stated, the following description applies to FIGS. 6.1 and 6.2.

In the processing station of the texturing machine, a supply spool 7 is attached to a mandrel 71. From the supply spool 7, a thread 4 is withdrawn from a first delivery 13. For this purpose, the thread 4 is guided by the supply bobbin 7 overhead through the yarn guide 12. The delivery mechanism 13 is shown in the operating position. A device for height adjustment of the delivery mechanism 13 is not shown here, since the application of the thread 4 according to this embodiment with and without height adjustment is possible. The delivery mechanism 13 conveys the thread into a false twist texturing zone. The false twist texturing zone has a heating device 18, a downstream cooling device 19 and a false twist unit 20. At the end of the false twist texturing zone, a second delivery mechanism 21 is arranged. The delivery mechanism 21 is driven in relation to the first delivery mechanism 13 at a greater peripheral speed, so that the thread 4 is stretched in the false twist texturing zone. The second delivery mechanism 21 is designed as a delivery shaft 68 with a pressure roller 69 resting against the circumference of the delivery shaft 68. In this case, the thread 4 is clamped and conveyed between the driven delivery shaft 68 and the revolving pressure roller 69.

From the second delivery mechanism 21, the thread is guided to a take-up device. The winding device includes a rotatable winding spindle 72, on which a coil 25 is formed. The coil 25 is driven by a voltage applied to the circumference of the coil 25 driving roller 24. In the yarn path, a traversing device 26 is arranged in front of the coil 25. The traversing device 26 has an oscillating yarn guide which reciprocates the yarn transversely to the direction of travel so that a cross-wound bobbin is wound.

The first delivery mechanism 13 is designed as a conveyor roller 30. The conveyor roller 30 is known from DE 196 52 620 (Bag 2359). The conveyor roller 30 has on the circumference a plurality of guide elements 79 and 80 (see Fig. 8.1), which form a substantially zigzag-shaped yarn guide track 31. The thread 4 is guided in this thread running track on the circumference of the conveying roller 30. The conveying roller 30 is driven, whereby a frictional force acts on the thread through the thread loop on the circumference of the conveying roller 30 and on the guide elements 79 and 80 of the conveying roller, which leads to conveying the thread without sliding on the surface of the conveying roller. At the periphery of the conveyor roller 30, a pivotable Anlegblech 70 is arranged at a distance from the guide elements. The Anlegblech 70 is movable in the thread running plane at a distance from the thread running track between an Anlegstellung and an operating position.

In Fig. 6.1 the application of the thread 4 is shown in the processing station of the texturing machine. In this case, the thread 4 is received by a suction gun 67. From the suction gun 67, the thread 4 passes through pneumatic conveying to a waste container (not shown here). The suction gun 67 is guided by an operator. Here, the thread 4 is successively inserted into the individual units of the processing site. In Fig. 6.1 the situation is shown in which the thread is laid up to and including the second delivery mechanism 21. In this phase, the conveying roller 30 is shielded by the Anlegblech 70 such that the thread 4 does not enter in the thread running track of the conveying roller 2. The Anlegblech 70 is in the Anlegstellung. Thus, the thread 4 is withdrawn by the delivery mechanism 21 from the supply spool 7. The thread 4 is guided along the surface of the Anlegblechs 13.

To insert the thread 4 in the thread running track of the feed roller 2, the Anlegblech is pivoted against the thread running direction in the arrow direction. In this case, the wrap around the circumference of the conveyor roller 2 is released with progressive movement of the Anlegbleches 13, and the conveyor roller 2 comes to Intervention. In this case, the thread 4 is braked only on reaching the complete looping to the lower speed of the delivery mechanism 4. In insufficient wrapping of the thread 4 on the conveyor roller 30, the thread slides over the contact surfaces of the conveyor roller 30. Thus, a gradual deceleration and thus a gradual build-up of the stretching tension in the thread.

In the situation shown in Fig. 6.2, the processing station is in operation. The Anlegeblech 13 is located in the operating position outside of the threadline. The thread 4 is now drawn off by the feed roller 30 from the supply spool 7 and guided into the false twist texturing zone. In the false twist texturing zone, the thread is given a false twist by the false twist unit 20, which lags back to the delivery mechanism 13. As a result, the false twist of the thread in the heating device 18 and the subsequent cooling device 19 is fixed. The thread 4 leaves the false twist unit 20 substantially free of twist and is then guided by the driven at a higher speed delivery mechanism 21 to the take-up device. In the winding device, the thread 4 is wound into the bobbin 25.

In Fig. 7, another embodiment of a conveyor roller is shown with a guide means, as they would be used for example in the texturing machine of FIG. 1 or 6. Laterally next to the conveyor roller 30, a rotary bearing 75 is mounted in the axle extension to the conveyor roller 30. At the pivot bearing 75, a pivot arm 74 is attached. The pivot arm 74 has a length which is greater than the radius of the conveyor roller 30. At the end of the pivot arm 20, a guide means 73 is mounted cantilevered so that the thread running plane is penetrated by the guide means 73. The guide means 73 may be embodied here as a rod or roller.

In Fig. 7.1, the guide means is shown in the Anlegstellung. Here, the guide means 73 is pivoted in the peripheral region of the conveying roller 30, the is entwined by the thread in operation. Thus, when applying the thread 4 can be guided over the guide means 73 without the thread 4 comes into engagement of the conveyor roller 30.

In Fig. 7.2, the situation is shown in which the guide means 73 is moved by the pivot arm 74 in an operating position. In this position, the guide means 73 is moved out of the yarn path, so that the yarn 4 enters the yarn guide track 31 of the conveyor roller 30. In this position, the thread 4 is conveyed by the driven conveyor roller 30.

The pivot arm 74 can hereby be pivoted against the thread running direction or in the thread running direction in order to reach the operating position in the application position. In this case, the swivel arm is controlled by a drive, not shown here.

FIG. 8 shows a further exemplary embodiment of a conveying roller with an aligning plate, as could be used, for example, in the texturing machine according to FIG. 1 or FIG. For this purpose, a plan view is shown in FIG. 8.1 and in each case a side view of the conveyor roller is shown in FIGS. 8.2 and 8.3. The following description applies - unless otherwise stated - for the figures 8.1 to 8.3.

The conveyor roller 30 is hereby exemplified as a disk 27 which is attached to one end of a drive shaft 78. The drive shaft 78 is driven by a drive (not shown here). At the periphery of the disc 27, a U-shaped groove 28 is introduced. In the U-shaped groove 28 alternately opposing guide elements 79 and 80 are arranged in such a way that in the groove bottom a zig-zag-shaped yarn guide track 31 is formed. The thread 4 is guided in promotion by the conveyor roller 30 in the groove bottom. In this case, friction occurs between the thread and the guide elements 78 and 80 in the looping area in addition to the wrap-around friction to the groove base.

Laterally next to the conveyor roller 30, a guide device 76 is arranged. The guide device has a concentric with the circumference of the conveyor roller 30 extending guide groove 77. The guide groove 77 is made larger in diameter than the conveying roller 30. In the guide groove 77 an Anlegblech 70 is guided. The Anlegblech 70 can be moved by the guide device between an Anlegstellung and an operating position in the guide back and forth. The Anlegblech 70 is formed projecting to the guide means 76 and covers the groove 28 of the conveyor roller 30 from. In the circumferential direction of the conveyor roller 30, the Anlegblech 70 has at each of its ends an inlet yarn guide 82 and a discharge yarn guide 81. The yarn guides 81 and 82 may be formed here as a simple rod or as a roll.

In Fig. 8.1 and 8.2, the Anlegblech 70 is shown in the Anlegstellung. In this case, the Anlegblech 70 extends over the entire Fadenumschlingungsbereich on the circumference of the conveyor roller 30. The tapered thread 4 is guided by the Einlauffadenführer 82 at a distance from the Anlegblech 70 here. At the outgoing side of the conveyor roller 30, the thread is guided between the surface of the feed plate 70 and the outlet thread guide 81. In this position of the Anlegblechs 70, the conveyor roller without effect on the thread. The thread 4 is guided on the surface of the Anlegblechs 70. In order to convey the yarn with the conveyor roller 30, the feed plate 70 is pivoted by the guide device 76 into the operating position (compare Fig. 8.3) counter to the thread running direction. In this case, the thread 4 will first run into the groove 28 or the thread running track 31 on the discharge side of the conveying roller 30. The Einlauffadenführer 82 loses contact with the thread 4 and is pivoted with the Anlegeblech 13 parallel to the circumference of the conveyor roller. After the Anlegblech 70 is pivoted from the Fadenumschlingungsbereich the conveyor roller, the thread 4 completely immersed in the yarn guide track 31 a. The thread 4 is now the conveyor roller 30 promoted. In order to maintain a certain Fadenumschlingung on the conveyor roller 30, by pivoting the Anlegbleches 70 of the thread 4 in Run-up area guided by the outlet yarn guide 81 in the direction of higher wrap. This can be advantageous to increase the Fadenumschlingung on the conveyor roller 30.

The movement of the guide means or the Anlegbleches can be performed in the described examples of Fig. 6 to 8 by a separate drive or by an auxiliary device, for example, combination with the height adjustment of the delivery mechanism. Even with manual operation can be with the inventive device perform a gentler application process in a processing station of a texturing machine. The pivoting of the guide means from the Anlegstellung already sufficient to receive any significant Fadenzugkraftspitzen when creating.

It should be expressly mentioned at this point that the invention also covers those guide means which guide the thread both in the Anlegstellung and in the operating position with contact.

LIST OF REFERENCE NUMBERS

1

winding frame

2

creel frame

3

process frame

4

thread

5

service aisle

7

supply bobbin

9

takeup

11

idler pulley

12

Yarn guide

13

first delivery plant

18

first heating device

19

cooler

20

False twist unit

21

second delivery plant

22

second heater, set heater

23

third delivery plant

24

friction roller

25

up reel

26

Traversing device

27

disc

28

groove

29

guide elements

30

conveyor roller

31

Thread groove, thread track

32

carriage

33

guide rail

34

operating position

35

operating position

36

Slide

37

cable

38

drive

39

role

40

role

41

control unit

42

rope

43

control valve

44

cylinder

45

piston

46

Inlet

47

poetry

48

Compressed air connection

49

attack

50

attack

51

pressure source

52

carriage

53

drive shaft

54

engine

55

swing Drive

56

pivoting element

57

swivel axis

58

swivel arm

59

deflected

60

sliding position

61

swivel

62

swivel

63

management

64

plug

65

Power supply terminal

66

magnetic piston

67

suction gun

68

delivery phase

69

pressure roller

70

threading plate

71

mandrel

72

winding spindle

73

guide means

74

swivel arm

75

pivot bearing

76

guide means

77

guide

78

drive shaft

79

guide elements

80

guide elements

81

thread guides

82

thread guides

83

shoe

Claims (25)

1. Texturing machine for texturing a plurality of thermoplastic yarns, each in a processing station, wherein the yarn (4) is advanced by a plurality of successively arranged feed sytems (13, 21, 23), with at least one of the feed systems (13) being arranged on a movable slide (32, 52), which is displaceable by means of a drive (38) along a guide rail (33) between a servicing position and an operating position, characterized in that the slide (32, 52) is guided on the guide rail (33) by a slide element (36), and that the slide element (36) is coupled with the drive (38) via a guide means (37, 66) moving parallel to the guide rail (33).
2. Texturing machine of claim 1, characterized in that the connecting means is a magnetic piston (66), which is guided in a cylinder (44) by means of compressed air, and which connects by magnetic forces to the slide element (36).
3. Texturing machine of claim 1, characterized in that the connecting means is a cable line (37), that the drive (38) comprises a cylinder (44) and a piston (45) extending in the cylinder (44), that the piston (45) connects to the cable line (37), and that the piston (45) within the cylinder is biased by compressed air for moving the slide (32).
4. Texturing machine of claim 3, characterized in that the cable line (37) consists of two cables (42.1, 42.2), which are guided respectively over an upper pulley (40) and a lower pulley (39), and which are each attached with one end to the piston (45) and with the opposite end to the slide element (36), and that the cylinder (44) has at each end an inlet (46), through which one of the cables (42) extends.
5. Texturing machine of claim 4, characterized in that the inlet (46) of the cylinder accommodates a seal (47), through which the cable (42) extends.
6. Texturing machine of one of claims 2-5, characterized in that for moving the slide element (36), the piston (45, 66) is controllable in its direction of displacement and in its speed of displacement by means of a control valve (43).
7. Texturing machine of one of the foregoing claims, characterized in that a pivot means (55) is provided for performing a relative movement between the slide (52) and the slide element (36), and that in the operating position the slide (52) is adapted to be pivoted by the pivot means (55) from a sliding position (60) to a deflected position (59), and vice versa.
8. Texturing machine for texturing a plurality of thermoplastic yarns, each in a processing station, wherein the yarn (4) is advanced by a plurality of successively arranged feed system (13, 21, 23), with at least one of the feed systems (13) being arranged on a movable slide (52), which is adapted for being displaced by means of a drive (38) along a guide rail (33) between a servicing position and an operating position, characterized in that a pivot means (55) is provided for performing a relative movement between the slide (52) and a slide element (36), the slide (52) being guided by the slide element (36) along the guide rail (33), and that in the operating position the slide (52) is adapted for being pivoted by the pivot means from a sliding position (60) to a deflected position (59), and vice versa.
9. Texturing machine of claim 7 or 8, characterized in that the pivot means is designed and constructed as a pivot mechanism, that the slide element (36) and a push element (56) are mounted for sliding one after the other along the guide rail (33), that the push element (56) and the slide element (36) connect to the slide (52) by means of the pivot mechanism (55), and that the pivot mechanism (55) is movable by a relative movement between the slide element (36) and the push element (56) in such a manner that the slide (52) is pivoted from the sliding position (60) to the deflected position (59), and vice versa.
10. Texturing machine of claim 9, characterized in that that the pivot mechanism (55) comprises a pivot axle (57) and a rocking arm (58), the slide (52) being connected by the pivot axle (57) to the push element (56) and by the rocking arm (58) to the slide element (36), and the rocking arm (58) being provided in its end regions with pivots joints (61, 62).
11. Texturing machine of one of claims 9 or 10, characterized in that for releasing the relative movement, the push element (56) is movable in the operating position at the end of the guide rail (33) against a stop (49), and that the deflected position (59) of the slide (52) is reached, when the drivable slide element (36) is in contact with the push element (56).
12. Texturing machine of one of claims 9-11, characterized in that the pivot mechanism (55) is designed and constructed such that in the deflected position (59), the slide (52) is held on the guide rail (33) in selflocking manner by the slide element (36) and the push element (56).
13. Texturing machine of one of the foregoing claims, characterized in that the feed system (30) is arranged with a drive (54) on the slide (52), the drive (54) being connected in the operating position to an energy supply outlet (65).
14. Texturing machine of one of claims 1-13, characterized in that the feed system is a feed roll (30) with a zigzag yarn guide track (31) formed on its circumference, and that in the operating position the feed roll (30) is arranged directly upstream of the inlet of a heater (18).
15. Texturing machine of claim 14, characterized in that the feed roll (30) is arranged on the slide (52) relative to the yarn path such that the feed roll exhibits in the deflected position a yarn looping, which is greater than the yarn looping in the sliding position.
16. Texturing machine of claim 14 or 15, characterized in that a guide means (70, 73) is associated to the feed roll (30) for varying the yarn looping, and that the guide means (70, 73) is movable relative to the feed roll in such a manner that in a threading position the yarn is advanced without contacting the yarn guide track (31) on the circumference of the feed roll (30), and in an operating position in contact with the yarn guide track (31) on the circumference of the feed roll (30).
17. Texturing machine according to one of the claims 1 to 16, characterized by a plurality of successively arranged feed systems (13, 21) for advancing and drawing the yarn (4) in the processing station, wherein at least one of the feed systems (13) is a driven feed roll (30), which is partially looped on its circumference by the yarn (4), and which advances the yarn (4) by friction in a guide track (31) on its circumference, the guide track being formed by a plurality of guide elements (79, 80), and with a guide means (70, 73) for guiding the yarn (4) in the vicinity of the feed roll (30), the guide means (70, 73) being movable for varying the yarn looping about the feed roll (30) between a threading position and an operating position, whereby the guide means (70, 73) is movable relative to the feed roll (30) in such a manner that in the threading position, the yarn is advanced without contacting the yarn guide track (31) on the circumference of the feed roll (30), and in the operating position in contact with the yarn guide track (31) on the circumference of the feed roll (30).
18. Texturing machine of claims 16 or 17, characterized in that in the threading position, the guide means (70, 73) is arranged between the yarn and the circumference of the feed roll (30), so that the yarn is advanced without contacting the guide elements (79, 80), and that by moving the guide means (70, 73) from the threading position to the operating position, the yarn is transferred by the guide means (70, 73) to the feed roll (30).
19. Texturing machine of claim 18, characterized in that the guide means is a threading plate (70) covering the guide elements (79, 80) with the yarn guide track (31) on the circumference of the feed roll (30), the threading plate extending in the threading position substantially over the circumferential region of the feed roll (30), which is looped by the yarn (4).
20. Texturing machine of claim 19, characterized in that the threading plate (70) is made symmetric with the circumference of the feed roll (30), and that the threading plate (70) is movable in the circumferential direction of the feed roll (30).
21. Texturing machine of one of claims 19 or 20, characterized in that the threading plate (70) comprises an inlet yarn guide (82) and an outlet yarn guide (81), which are arranged in spaced relationship in the circumferential direction of the feed roll (30).
22. Texturing machine of claim 21, characterized in that the inlet yarn guide (82) and/or the outlet yarn guide (81) are designed and constructed such that in the threading position of the threading plate (70), the yarn (4) is advanced within the looping region at least in part on the surface of the threading plate (70).
23. Texturing machine of claim 21 or 22, characterized in that the inlet yarn guide (82) and/or outlet yarn guide (81) are designed and constructed such that in the operating position of the threading plate (70), the yarn (4) is advanced within the looping region on the circumference of the feed roll (30) in the yarn guide track (31).
24. Texturing machine of one of claims 18-23, characterized in that the guide means (73) connects to a rocking arm (74), which is mounted in a pivot bearing (75) that is arranged in the axial extension of the feed roll (30).
25. Texturing machine of one of claims 18-24, characterized in that the guide means (70) is adapted for extending in a guide groove (77) concentric with the circumference of the feed roll (30) and provided in a guide arrangement (76) extending laterally next to the feed roll.

Images