EP1038058A1

EP1038058A1 - Texturing machine

Info

Publication number: EP1038058A1
Application number: EP99950592A
Authority: EP
Inventors: Klemens Jaschke; Andreas Schulz; Dietrich Berges
Original assignee: Barmag AG; Saurer GmbH and Co KG; Barmag Barmer Maschinenfabrik AG
Current assignee: Oerlikon Textile GmbH and Co KG
Priority date: 1998-10-12
Filing date: 1999-10-01
Publication date: 2000-09-27
Anticipated expiration: 2019-10-01
Also published as: EP1038058B1; JP2002527635A; TR200001590T1; CN1287581A; US6430911B1; CN1101862C; KR20010032886A; US20020056266A1; DE59913648D1; WO2000022211A1; US6494029B2

Abstract

The invention relates to a texturing machine for texturing a number of thermoplastic threads in a respective machining area. To this end, the threads are guided and transported in the machining area in by several supply mechanisms. One of said supply mechanisms is mounted on a moving slide. The slide is therefore guided on a guide rail and is moved between a mind position and an operating position by means of a linear drive. The slide is guided on the guide rail with a sliding element. Said sliding element is coupled with a drive by a cable, which runs along the guide rail, in order to transmit the force.

Description

Texturing machine

The invention relates to a texturing machine according to the preamble of claim 1 and according to the preamble of claim 17.

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

In the known texturing machine, a plurality of supply spools are arranged one above the other in a creel frame, each of which provides a thread for a processing point in the machine. A plurality of delivery mechanisms are arranged one behind the other in the machine for drawing off and conveying the threads or also for stretching the threads. The first delivery mechanism is arranged above the frame to pull the thread from the supply spool and to convey it into a false twist texturing zone. With this arrangement, the thread can thus be conveyed directly from the delivery plant to a heating device within the false twist texturing zone without being deflected. At the start of the process, however, it is necessary for the supplying unit to be moved from the operating position to an operating position in order to create the thread. For this purpose, the delivery mechanism is attached to a carriage which can be moved along a guide rail by means of a linear drive. Here, considerable height differences must be overcome between the lower operating position and the upper operating position. A high level of power transmission is required to move the carriage with the delivery system. Furthermore, the delivery mechanism must be positioned extremely precisely in the operating position so that the thread path in the subsequent heating device can take the desired course for the treatment of the thread.

Furthermore, the two delivery plants are driven with a speed difference, the first delivery plant being operated at a lower speed in relation to the second delivery plant. With the known The texturing machine in front of the texturing zone is designed as a conveyor roller, in which the thread is conveyed in a thread running track on the circumference of the conveyor roller essentially without slippage due to friction. In order to apply the necessary frictional force to the thread, a minimum wrap around the circumference of the conveyor roller and a thread running track for transverse deflection of the thread in the wrap area are required. Such a configuration of the delivery mechanism, however, requires a minimum thread tension when the thread is first put on in order to insert the thread into the thread running track of the conveyor roller. Furthermore, the difference in speed between the neighboring delivery plants and the friction on the thread due to the feed roller lead to considerable thread tension differences. However, threading, in which the speeds of the supplying plants are changed, is only possible to a limited extent with coupled drives of the supplying plants from neighboring processing stations.

The invention is therefore based on the object of further developing the texturing machine of the type mentioned at the outset such that the height adjustment of the delivery mechanism and the application of the thread can be carried out in a simple manner and without great effort by an operator. Furthermore, it is the object of the invention to provide a texturing machine in which the thread can be gently applied to a processing point of the texturing machine and inserted gently into the heating device when the operating position of the delivery unit is reached, despite speed differences in the delivery units, and without significant changes in thread tension.

The object is achieved according to the invention by a texturing machine with the features of claim 1, by a texturing machine with the features of claim 8, by a texturing machine with the features of claim 17 and by a method with the features of claim 26. Advantageous developments of the invention are defined in the subclaims

The texturing machine according to the invention is characterized in that the delivery unit can be guided along the guide rail with uniform stability regardless of its position.The thread can already be guided in the operating position in the delivery unit, since the transverse forces transmitted from the thread to the delivery unit when the delivery unit moves are securely received by the guided slide For this purpose, the slide has at least one sliding element which is guided in the guide rail and is coupled to the drive via a connecting means. The connecting means between the drive is designed in such a way that the sliding element is guided securely in the guide rail until the operating position is reached and a power transmission for smooth movement is ensured.

In a particularly advantageous development 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 to the sliding element by magnetic forces. The carriage can be connected directly by the sliding element and the pistons controlled by the drive and thus position the delivery mechanism very reproducibly, which stabilizes the thread run in the operating position

The combination between a cable pull and the drive means that large weights and long distances can advantageously be bridged.For this purpose, the sled with the delivery system is guided by a sliding element on the guide rail. The sliding element is connected to the drive by a cable pull. The cable pull runs along the guide rail, see above that when the drive is actuated, only one force acts on the sliding element in the direction of travel. The force is transmitted by the cable pull excluded The drive is preferably formed by a piston-cylinder unit, in which the piston in the cylinder is controlled by compressed air.This enables the delivery mechanism to be moved quickly and precisely between the lower operating position and the operating position.However, it is also possible to move the delivery mechanism to any position between holding the operating position and the operating position. Such a holding position can be achieved by pressurizing the piston inside the cylinder from both sides

In order to enable the movement of the carriage to be controlled as sensitively as possible, the development according to claim 4 is particularly preferred. Here, the cable consists of two cables which are arranged on both sides of the sliding element and are each guided to the cylinder via an upper and a lower roller The cylinder is arranged parallel to the guide rail, so that the cables are each guided at the ends of the cylinder through an inlet into the cylinder and are connected to the piston

To avoid major compressed air losses during the actuation 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 can be controlled both in its direction and in its speed, so that the movement of the sliding element in its direction of travel and in its speed of travel can be changed This training is particularly advantageous in order to retract the delivery unit into the operating position. The travel speed can be reduced shortly before the operating position is reached, so that a slow and therefore safe entry into the operating position is possible.This is particularly useful for inserting the thread in the heating device advantageous at Such texturing machines are preferably used with heating devices in which the heating surfaces have a temperature which is greater than the melting temperature of the thread material. Thus, by slowly moving into the operating position, it can be prevented that the thread comes into inadmissible contact with 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 element, the carriage being pivotable in the operating position from a sliding position into a deflected position and vice versa by the pivoting means. This training provides a further solution to the underlying task. The particular advantage of this invention is that the delivery mechanism has reached its final operating position in the deflected position of the slide. Thus, for example, the thread can be put into the heating device solely by adjusting the slide between the sliding position and the deflected position. The movement of the swivel gear can be controlled, for example, by moving to a stop or by a separate drive. Furthermore, the thread wrap can be influenced, so that the wrap friction required to convey the thread at the feed mechanism, for example, is only achieved in the deflected position.

In a particularly advantageous development of the invention according to claim 9, a sliding element is slidably attached to the guide rail in addition to the sliding element. The sliding element and the push element are connected to the slide by the swivel gear, the movement of the swivel gear being effected by a relative movement between the sliding element and the push element on the guide rail. So that the swivel gear can be controlled in its movement by the linear drive, so that both the height adjustment and the swiveling movement of the delivery mechanism can be carried out by simple handling.

In order to achieve the most compact possible unit, it is proposed to design the swivel gear as a simple push crank. For this purpose, the slide is connected to the thrust element via a pivot axis. A swivel arm with swivel joints is attached between the sliding element and the slide. As a result, the carriage can be pivoted on the pivot axis by relative movement between the sliding element and the thrust element.

The relative movement between the thrust element and the sliding element can be achieved in a simple manner 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 on the guide rail in order to trigger the relative movement.

For this purpose, according to claim 11, a stop is provided at the end of the guide rail, which is reached by the thrust element in the operating position. Now that the thrust element bears against the stop, the further drive of the sliding element by the linear drive leads to the fact that the slide is deflected in a guided manner on the swivel arm. It is particularly advantageous here if the thrust element is arranged on the guide rail in front of the sliding element 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 on the thrust element.

The development of the texturing machine according to the invention according to claim 12 is particularly advantageous

Deflection position of the slide in relation to the sliding element and the Push element such a position that the transmitted forces lead to self-locking of the sliding element and the push element on the guide rail. The delivery unit is thus firmly locked in its operating position. The self-locking only releases when the sliding element is activated by the linear drive to move into the operating position.

In the texturing machine according to the invention, the height adjustment of the delivery unit can take place with or without drive of the delivery unit. In the event that the drive is attached to the carriage together with the delivery mechanism and can be moved from the operating position into the operating position, the development of the invention provides for a solution in which the drive in the operating position can be coupled to an energy supply connection is. Depending on the design of the drive, the energy can thus be established by means of a mechanical coupling or an electrical plug contact between an energy source and the drive.

In a particularly advantageous further development of the texturing machine according to the invention, 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 for the thread to wrap around the conveyor roller to a certain extent. The degree of wrap on the conveyor roller can thus advantageously be influenced by adjusting the slide between the sliding position of the deflection position. A large loop is therefore required in the deflected position. In contrast, only a small wrap is required in the sliding position, which only has to allow the thread to be put on in the operating position.

When using a conveyor roller, it is known that the thread is conveyed with a conveyor roller only without slippage when those acting on the thread The frictional forces are generated by the thread wraps on the front reel and the guide elements of the front reel. If the frictional forces are too low, slippage occurs between the thread and the front reel, i.e. the thread slides relative to the contact surfaces of the front reel used to apply the thread and leads to a further solution to the underlying task.For this purpose, in the texturing machine according to the invention, the thread is first put into contact with the thread running track on the circumference of the feed roller by at least one neighboring delivery mechanism when it is put on in a processing point by means of a guide means guided in this phase at a speed which is determined by the neighboring delivery mechanism. To stretch the thread, the speeds of the delivery mechanisms are different, so that a drawing tension can build up in the thread Difference or the stretching tension is now slowly built up by moving the guide means until the guide means has reached the operating position.This prevents sudden braking or acceleration to the differential speed of the neighboring supplying plant.This solution also has the advantage that it can be applied in a stationary delivery plant

In a particularly advantageous development of the invention, the thread is guided through the guide means only when the guide means is in the position in which the guide means is in operation. The thread is only required by the roller. The guide means has no contact with the thread. This configuration has the advantage that there is no additional thread deflection and thus looping friction caused by the guiding means during the processing of the thread. The thread is transferred to the winding reel by moving the guiding means

In order to achieve the smallest possible thread deflections in the feed position, the development of the invention according to claim 19 is particularly advantageous Here, a feed plate is arranged at a distance from the conveyor roller in such a way that the thread track and thus the guide elements of the conveyor roller are covered. The thread is thus guided in the feed position on the surface of the feed plate.

A particularly compact design and a particularly gentle thread guide can be carried out with the particularly advantageous development of the invention. The feed plate thus has a curvature similar to that of the feed roller, so that the deflection of the thread in the feed position can be carried out uniformly and particularly smallly over the entire wrap area. The movement of the contact plate in the circumferential direction of the conveyor roller also causes the thread to be gently immersed in the thread running track of the conveyor roller.

In order to be able to influence the degree of thread wrap on the feed plate in the feed position or the degree of thread wrap on the feed roller in the operating position, it is proposed to attach an inlet thread guide and an outlet thread guide to the feed plate, which are spaced apart in the circumferential direction of the feed roller.

The movement of the guide means can be carried out in a simple manner by means of a pivot arm, the pivot arm being 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. The guide means is guided in this guide groove between the contact position and the operating position. The movement of the guide means can be carried out either by an independent drive or by auxiliary devices for threading.

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

They represent:

Fig. 1 is a schematic view of an inventive

Texturing machine;

2 and 3 schematically show further exemplary embodiments of a height-adjustable delivery mechanism;

4.1 and 4.2 schematically show another embodiment of a height-adjustable delivery mechanism;

5 schematically shows a top view of the height-adjustable delivery mechanism according to FIG. 4.

Fig. 6 shows another embodiment of an inventive

Texturing machine;

Fig. 7 with another embodiment of a conveyor roller

Management means;

Fig. 8 shows another embodiment of a conveyor roller

Baffle. In Fig. 1 an embodiment of a texturing machine according to the invention is shown schematically. Here, a machine half of a partially automatic false twist texturing machine is shown. Since the two machine halves are placed in mirror image, only one half of the double machine is shown and described in FIG. 1.

The machine has a gate frame 2 and a winding frame 1. In the gate frame 2, a plurality of supply coils 7 are arranged one above the other on levels. An operating doffing 5 is formed between the gate frame 2 and the winding frame 1. The first delivery mechanism 13, the heating device 18 and the cooling device 19 are arranged on one level above the machine frames. A false twist unit 20 and a second delivery unit 21 are supported on the process frame 3. The process frame 3 is arranged on the side of the winding frame 1 opposite the gate frame 2. Winding frame 1 and process frame 3 are joined directly to one another. In the process frame 3, a second heater 22 is arranged below the second delivery unit 21. The winding frame 1 serves to accommodate the winding devices 9. Here, in turn, several winding devices are arranged one above the other on a tier. In each of the winding devices, the thread is wound into a thread spool 25. The thread spool 25 is arranged on a spindle which is driven by a friction roller 24. A traversing device 26 is inserted in the thread path in front of the thread spool. A third delivery unit 23 is connected upstream of the winding device 9.

In this arrangement, the thread 4 is drawn off 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 delimited by the false twist unit 20 and the delivery mechanism 13. The heating device 18 and the cooling device 19 are arranged in one plane within the false twist texturing zone. At the exit of the false twist texturing zone, the second delivery mechanism 21 is arranged to pull the thread out of the false twist texturing zone deduct and promote in the second heater 22. The first delivery unit 13 and the second delivery unit 21 are driven with a speed difference, so that the thread is simultaneously drawn 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 winding device. The thread is then wound into a thread spool 25 in the winding device 9. After the bobbins 25 are completely wound, the bobbin change is carried out on the false twist texturing machine by means of a doffer. For this purpose, the full bobbins are removed from the winding device 9 and new empty tubes are put on. During this time, the thread is picked up by a suction device and led to a waste container.

For the aftertreatment of the thread in the second heater 22, a further delivery mechanism can also advantageously be arranged between the second delivery mechanism 21 and the heater inlet 22. A speed difference can thus be set between the supply unit in front of the second heater 22 and the third supply unit 23.

In the example shown in FIG. 1, the delivery mechanisms 21 and 23 are arranged stationary in the machine. The delivery units 21 and 23 can, for example, as

Clamp delivery systems with a shaft and an adjacent pressure roller or

Printing belt must be executed. The first delivery unit 13 is operated by a conveyor roller

30 formed as it is known from DE 196 52 620 (Bag. 2359). To this extent, reference is made to this document at this point. The conveyor roller 30 is attached to a height-adjustable carriage 32 by a motor (not shown here). Since the delivery mechanism 13 above the frame 2 in one of

Operator is inaccessible position is arranged, the conveyor roller

30 with the carriage 32 on a guide rail 33 between the illustrated

Move operating position 34 and an operating position 35 (shown in dashed lines) below operating position 34. For this purpose, the carriage 32 is connected to a sliding element 36. The sliding element 36 is on the Guide rail 33 out. A cable 37 is arranged in the plane of movement of the sliding element 36. The sliding element 36 is connected to a drive 38 by the cable 37. The drive 38 can be controlled manually via a control unit 41 in such a way that the sliding element 36 and thus the slide 32 with the delivery mechanism 13 move along the guide rail 33. The cable 37 can consist, for example, of a cable 42 which is attached at its ends to the sliding element 36. At the ends of the guide rail 33, the cable 42 is deflected via the rollers 39 and 40 and connected to a drive 38. Via the drive 38, the cable is moved in the direction parallel to the guide rail, so that the sliding element 36 is moved with the carriage 32 and the delivery mechanism 13. The drive 38 can be controlled manually via a control unit 41. An electrical, electromechanical, electropneumatic or pneumatic drive can be used to actuate the cable.

To put a thread 4 in a processing point, the thread 4 is picked up by 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 over the conveying surfaces of the conveyor roller 30. When the conveying roller 30 is used, in which the thread is guided in a zigzag shape on a circumferential surface, the thread slides over the guide elements on the circumference of the conveying roller 30 Applying the thread, the delivery mechanism 13 is moved from the operating position 35 into the operating position 34 by activating the drive 38. In the operating position 34, the drive of the conveyor roller 30 is activated so that the thread 4 is conveyed by the delivery mechanism 13.

The structure of the texturing machine shown in FIG. 1 is given as an example. The gate frame 2, the winding frame 1 and the process frame 3rd can be combined in different ways. It is possible that a further operating aisle is formed between the process frame and the winding frame 1. The machine can also be carried out fully automatically, so that the bobbin change takes place 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 restricted to the fact that a difference in height between the operating position and the operating position has to be overcome; rather, the invention enables each delivery mechanism to thread the thread from an accessible area into one for the Make the area easily accessible to the operator so that it can be moved if the second and / or third delivery unit are also designed as a conveyor roller

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

FIG. 2 shows a further exemplary embodiment of a movable delivery unit, as can be used in the texturing machine from FIG. 1. The delivery unit is formed by a conveyor roller 30. The conveyor roller 30 is rotatably attached to the carriage 32. The conveyor roller 30 is connected via a - not shown here - Electric motor driven The electric motor is also attached to the carriage 32 and can be supplied, for example, by an energy chain. However, it is also possible that the electric motor can be coupled to a power supply connection in the operating position via a plug contact

The carriage 32 is connected to a sliding element 36. The sliding element 36 is guided on the profiled guide rail 33. The guide rail 33 has a stop 49 and 50 at each end. The stop 49 and the stop 50 are arranged in the path of movement of the sliding element 36 and define at Installation of the sliding element 36 an operating position and a Operating position The sliding element 36 is coupled to the drive 38 via a cable 37. The drive 38 is designed as a piston-cylinder unit, the cylinder 44 extending essentially parallel over the length of the guide rail 33. A piston 45 is guided in the cylinder 44. The piston 45 is firmly connected at its end faces with a rope 42 1 and 42 2 of the cable 37. The rope 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 cable 42 2 fastened on the opposite end face of the piston 45 is guided outwards via an inlet 46 2 introduced on the opposite side of the cylinder 44 and deflected via the roller 39 arranged in the end region. The other end of the cable 42 2 is on the sliding element 36 attached The sliding element 36 and the piston 45 are connected via the tensioned cables 42 1 and 42 2

The cylinder 44 has a compressed air connection 48 1 and 48 2 in its end regions. The compressed air connections 48 1 and 48 2 are connected via lines to a control valve 43. The control valve 43 is connected to a compressed air source 51, so that the piston 45 is actuated by actuating the control valve 43 Compressed air can be applied alternately on one side or simultaneously on both sides If, for example, compressed air is fed into the upper chamber of the cylinder 44, the control valve 43 had to be brought into the left switching position. In this switching position, the piston 45 is in the cylinder 44 due to the pressure drop Moved towards the inlet 46 2 Due to the transmission to the cable 37, a movement of the sliding element 36 in the direction of the stop 49 takes place. In order to avoid larger compressed air losses, a seal 47 1 is arranged in the inlet 46 1, through which the cable 42 1 is guided accordingly is a seal in the inlet 46 2 g 47 2 embedded, through which the rope 42 2 is guided However, it is also possible for the piston to be formed by a magnet which controls a ring segment on the circumference of the cylinder via a 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 there is no loss of compressed air.

The cable 37 shown in FIG. 2 can advantageously also be supplemented by a plurality of deflection rollers. Ropes 42.1 and 42.2 can also be designed as rope sections of a continuous rope.

3 shows a further exemplary embodiment of a movable delivery unit. The arrangement shown differs from the delivery mechanism shown in FIG. 2 by the design of the connecting means between the sliding element 36 and the drive 38. The slide 32 is guided in the profile guide rail 33 via the sliding element 36. A pneumatic drive 38 is arranged parallel to the guide rail 33. The drive 38 is designed as a piston-cylinder unit, the cylinder 44 extending essentially parallel over the length of the guide rail 33. A magnetic piston 66 is guided in the cylinder 44. On the outside of the cylinder 44, the sliding element 36 has a magnetizable sliding shoe 83. The slide shoe 83 is connected to the magnetic piston 66 inside the cylinder 44 via magnetic forces, so that when the magnetic piston 66 moves, the slide shoe 83 is guided along the cylinder wall and thus the sliding element 36 along the guide rail 33.

The movement of the magnetic piston 66 is controlled via the control valve 43.

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

4 and 5 show a further exemplary embodiment of a movable delivery unit, as would be used, for example, in a texturing machine according to FIG. 1. 4.1 shows the delivery mechanism in the operating position with the slide swung out in the deflected position. In Fig. 4.2 the delivery mechanism is shown in the sliding position when the slide is not swung out. 5 shows a top view of the delivery mechanism in the sliding position shortly before the operating position is reached. Unless otherwise stated, the following description applies to FIGS. 4.1, 4.2 and 5.

The conveyor roller 30 is rotatably mounted on the carriage 52. The carriage 52 is connected to a sliding element 36 and a thrust element 56 via a swivel gear 55. The swivel gear 55 here consists of a swivel axis 57 through which the slide 52 is pivotally coupled to the thrust element 56. A swivel arm 58 is provided between the sliding element 36 and the slide 52 and is connected in its end regions to the slide 52 and the rotary joint 62 to the sliding element 36 via a swivel joint 61. The sliding element 36 and the push element 56 are arranged at a distance from one another. The swivel joint 61 is located on the slide 52 between the sliding element 36 and the push element 56. The sliding element 36 and the push element 56 are guided one behind the other in a guide rail 33. Here, the sliding element 36 is coupled to the drive 38 by a cable 37. The cable 37 and the drive 38 can be designed according to the embodiment shown in FIG. 2. In this respect, reference is made to the description of FIG. 2 at this point.

The carriage 52 is guided on the guide rail 33 in the position shown in FIG. 5. In this sliding position, the thrust element 56 and that

Sliding element 36 so far apart from each other that the pivot joint 61 on Carriage 52 lies in a plane transverse to the guide rail 33 between the sliding element 36 and the push element 56. In this position, the sliding element 36 is moved via the cable 57. Due to 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 as the sliding element 36 on the guide rail 33. At the end of the guide rail 33, the stop 49 is formed, which fixes the operating position. As the sliding movement progresses, the thrust element 56 will first strike the stop 49. This blocks the further movement of the thrust element 56. However, the sliding element 36 is still moved in the direction of the stop 49 by the linear drive and the cable 57. This results in a relative movement between the thrust element 56 and the sliding element 36 on the guide rail 33. The relative movement leads to the fact that the slide 52 is pivoted out of its sliding position 60 by the pivot arm 57. Here, the length of the swivel arm 58 is dimensioned such that the sliding element 36 strikes the thrust element 56 as the movement progresses. A deflection position 59 of the delivery mechanism or of the carriage 52 is thereby achieved. In this situation, the swivel joint 61 lies between the swivel arm 58 and the slide 52 in a plane transverse to the guide rail, which lies below the sliding element and the push element. This configuration of the swivel gear ensures that the weight force acting on the sliding element generates a holding force acting in the direction of the stop 49. This results in a self-locking of the sliding element and the thrust element of the guide rail.

4.1, the input of the heating device 18 and the thread path of the thread 4 in the texturing machine are also shown. From this it can be seen that the thread 4 is only inserted into the heater 18 in the deflected position 59 of the delivery mechanism. In the sliding position 60, the thread 4 is still guided outside the heater despite having reached the operating position. This allows gentle insertion and rapid removal of the thread 4 from the heating device 18. 5, the conveyor roller is designed as a disk 27. The disk 27 has a U-shaped groove 28 on the circumference. In the U-shaped groove 28, several guide elements 80 are mutually arranged in the groove base in such a way that a zigzag on the circumference of the disk 27 in the groove base zag-shaped thread running track 31 sets the conveyor roller is firmly coupled to a drive shaft 53 which is driven by the electric motor 54. The motor 54 has a rigid line 63, at the free end of which a plug 64 is arranged. The plug 64 is in the Operating position can be coupled to an electrical power supply connection 65. The motor 54 is connected to a power source via this plug connection. The drive shaft 38 is driven to rotate, so that the feed roller 30 demands a thread 4 inserted in the thread running track 31. The guide elements 29 of the feed roller 30 are so covered formed that the friction generated by the thread 4 a sliding of the thread on the Umfan The flat surface of the disk 27 is prevented. The thread 4 thus receives a thread speed predetermined by the speed of the feed roller 30

The swiveling device shown in FIGS. 4 and 5 for swiveling the delivery mechanism in the operating position is exemplary. In principle, any swiveling gear that transmits a swiveling movement is possible between the slide and the sliding element. For example, a swivel arm that is in swivel joints with the slide and the sliding element is already possible is connected, a pivoting of the carriage is achieved. For this purpose, the swivel arm is connected to a shoulder which extends beyond the swivel joints and is guided against a stop, so that the swivel arm causes a change in the carriage position. However, it is also possible to provide a swivel gear with its own drive to move the carriage or the delivery mechanism to the deflected position

FIG. 6 shows a processing point of a further exemplary embodiment of a texturing machine. Here, the processing point is shown in FIG Applying the thread is 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 point of the texturing machine, a supply spool 7 is placed on a mandrel 71. A thread 4 is drawn off from the supply bobbin 7 by a first delivery mechanism 13. For this purpose, the thread 4 is passed overhead from the supply spool 7 through the thread guide 12. The delivery mechanism 13 is shown in the operating position. A device for height adjustment of the feed mechanism 13 is not shown here, since thread 4 can be applied with and without height adjustment according to this exemplary embodiment. The feed mechanism 13 conveys the thread into a false twist texturing zone. The false twist texturing zone has a heating device 18, a cooling device 19 following in the thread run and a false twist unit 20. A second delivery mechanism 21 is arranged at the end of the false twist texturing zone. The feed mechanism 21 is driven at a greater peripheral speed in relation to the first feed mechanism 13, 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 lying on the circumference of the delivery shaft 68. The thread 4 is clamped and conveyed between the driven delivery shaft 68 and the rotating pressure roller 69.

The thread is guided from the second delivery unit 21 to a winding device. The winder includes a rotatable spool 72 on which a spool 25 is formed. The spool 25 is driven by a drive roller 24 lying against the circumference of the spool 25. A traversing device 26 is arranged in the thread path in front of the bobbin 25. The traversing device 26 has an oscillating thread guide, which moves the thread back and forth transversely to the direction of travel, so that a cheese 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), and reference is made in this regard to this document. The conveyor roller 30 has a plurality of guide elements 79 and 80 on the circumference (cf. FIG. 8.1) which form an essentially zigzag-shaped thread running track 31. The thread 4 is guided in this thread running track on the circumference of the conveyor roller 30. The conveyor roller 30 is driven, the thread wrap on the circumference of the conveyor roller 30 and on the guide elements 79 and 80 of the conveyor roller acting on the thread, which leads to the conveyance of the thread without sliding on the surface of the conveyor roller. A pivotable contact plate 70 is arranged on the circumference of the conveyor roller 30 at a distance from the guide elements. The contact plate 70 can be moved in the thread running plane at a distance from the thread running track between a contact position and an operating position.

The application of the thread 4 in the processing point of the texturing machine is shown in FIG. 6.1. Here, the thread 4 is picked up by a suction gun 67. From the suction gun 67, the thread 4 is pneumatically conveyed to a waste container (not shown here). The suction gun 67 is operated by an operator. Here, the thread 4 is inserted one after the other into the individual units of the processing point. 6.1 shows the situation in which the thread is laid up to and including the second delivery mechanism 21. In this phase, the conveyor roller 30 is shielded by the contact plate 70 in such a way that the thread 4 does not run into the thread running track of the conveyor roller 2. The feed plate 70 is in the feed position. The thread 4 is thus drawn off from the supply spool 7 by the delivery mechanism 21. The thread 4 is guided along the surface of the contact plate 13.

In order to insert the thread 4 into the thread running track of the conveyor roller 2, this is

Feed plate swiveled in the direction of the arrow in the opposite direction of the thread. The wrapping area on the circumference of the conveyor roller 2 becomes progressive

Movement of the feed plate 13 released, and the conveyor roller 2 comes to Intervention. The thread 4 is only braked to the lower speed of the delivery mechanism 4 when the complete loop is reached. If the thread 4 is inadequately wrapped around the feed roller 30, the thread slides over the contact surfaces of the feed roller 30. This results in a gradual braking and thus a gradual build-up of the drawing tension in the thread.

In the situation shown in Fig. 6.2, the processing point is in operation. The contact plate 13 is in the operating position outside of the thread path. The thread 4 is now drawn off from the supply spool 7 by the conveyor roller 30 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 leads back to the delivery mechanism 13. This fixes the false twist of the thread in the heating device 18 and the subsequent cooling device 19. The thread 4 leaves the false twist unit 20 essentially without twist and is then guided to the winding device by the delivery mechanism 21 driven at a higher speed. The thread 4 is wound into the bobbin 25 in the winding device.

FIG. 7 shows a further exemplary embodiment of a conveyor roller with a guide means, such as would be used, for example, in the texturing machine according to FIG. 1 or 6. A pivot bearing 75 is attached to the side of the conveyor roller 30 in the axis extension to the conveyor roller 30. A pivot arm 74 is attached to the pivot bearing 75. The swivel arm 74 has a length that is greater than the radius of the conveyor roller 30. At the end of the swivel arm 20, a guide means 73 is attached so that the thread running plane is penetrated by the guide means 73. The guide means 73 can be designed as a rod or roller.

7.1 the guide means is shown in the application position. Here, the guide means 73 is pivoted into the peripheral region of the conveyor roller 30 is wrapped by the thread in operation. Thus, when the thread 4 is put on, it can be guided over the guide means 73 without the thread 4 coming into engagement with the conveyor roller 30.

7.2 shows the situation in which the guide means 73 is moved into an operating position by the swivel arm 74. In this position, the guide means 73 is moved out of the thread run, so that the thread 4 runs into the thread run track 31 of the conveyor roller 30. In this position, the thread 4 is conveyed by the driven conveyor roller 30.

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

FIG. 8 shows a further exemplary embodiment of a conveyor roller with a contact plate, as would be used, for example, in the texturing machine according to FIG. 1 or FIG. 6. For this purpose, a top view is shown in FIG. 8.1 and a side view of the conveyor roller in FIGS. 8.2 and 8.3. Unless otherwise stated, the following description applies to FIGS. 8.1 to 8.3.

The conveyor roller 30 is designed here, for example, as a disc 27 which is attached to one end of a drive shaft 78. The drive shaft 78 is driven by a drive (not shown here). A U-shaped groove 28 is introduced on the circumference of the disk 27. In the U-shaped groove 28, mutually opposite guide elements 79 and 80 are arranged in such a way that a zigzag thread track 31 is formed in the groove base. The thread 4 is guided in the groove base when conveyed by the conveyor roller 30. In addition to the wrap friction to the groove base, friction occurs between the thread and the guide elements 78 and 80 in the wrap area. A guide device 76 is arranged laterally next to the conveyor roller 30. The guide device has a guide groove 77 which runs concentrically to the circumference of the conveyor roller 30. The guide groove 77 is made larger in diameter than the conveyor roller 30. A guide plate 70 is guided in the guide groove 77. The contact plate 70 can be moved back and forth in the guide groove between the contact position and an operating position by the guide device. The contact plate 70 is cantilevered to the guide device 76 and covers the groove 28 of the conveyor roller 30. In the circumferential direction of the conveyor roller 30, the feed plate 70 has an inlet thread guide 82 and an outlet thread guide 81 at each of its ends. The thread guides 81 and 82 can be designed as a simple rod or as a roller.

8.1 and 8.2, the contact plate 70 is shown in the contact position. In this case, the feed plate 70 extends over the entire thread wrap area on the circumference of the conveyor roller 30. The incoming thread 4 is guided at a distance from the feed plate 70 by the inlet thread guide 82. On the running side of the conveyor roller 30, the thread is guided between the surface of the contact plate 70 and the outlet thread guide 81. In this position of the contact plate 70, the conveyor roller has no effect on the thread. The thread 4 is guided on the surface of the contact plate 70. In order to convey the thread with the conveyor roller 30, the feed plate 70 is pivoted by the guide device 76 into the operating position (cf. FIG. 8.3) against the thread running direction. The thread 4 will first run into the groove 28 or the thread running track 31 on the outlet side of the conveyor roller 30. The inlet thread guide 82 loses contact with the thread 4 and is pivoted with the contact plate 13 parallel to the circumference of the conveyor roller. After the feed plate 70 is pivoted out of the thread wrapping area of the conveyor roller, the thread 4 is completely immersed in the thread running track 31. The thread 4 is now conveyed to the conveyor roller 30. In order to maintain a certain thread wrap on the conveyor roller 30, the thread 4 in the Run-up area led by the outlet wire guide 81 in the direction of a higher wrap. This advantageously allows the thread wrap on the conveyor roller 30 to be increased.

In the described examples according to FIGS. 6 to 8, the movement of the guide means or the contact plate can be carried out by a separate drive or by an auxiliary device, for example in combination with the height adjustment of the delivery mechanism. Even with manual operation, the device according to the invention can be used for a gentle application process in a processing point of a texturing machine. The swiveling of the guide means from the application position is already sufficient in order not to receive any significant peaks in the thread tension when applying.

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

Reference list

Changing frame

Gate frame

Process rack

thread

Operating aisle

Supply spool

Take-up device

Pulley

Head thread guide first delivery plant first heating device

Cooler

False twist unit, second supplier, second heater, set heater, third supplier

Friction roller

Take-up spool

Traversing device

disc

groove

Guide elements

Conveyor role

Thread running groove, thread running track

carriage

Guide rail

Operating position

Sliding element Cable

drive

role

Control unit

rope

Control valve

cylinder

piston

Inlet

poetry

Compressed air connection

attack

Pressure source

carriage

drive shaft

engine

Slewing gear

Swivel element

Swivel axis

swivel arm

Deflection position

Floating position

Swivel

management

plug

Power supply connection

Magnetic piston

Suction gun Delivery wave

Pressure roller

Baffle

mandrel

Winding spindle

Leadership resources

swivel arm

Pivot bearing

Management facility

Guide groove

drive shaft

Guide elements

Thread guide

Sliding shoe

Claims

claims

Texturing machine for texturing a large number of thermoplastic threads in each processing point, in which the thread (4) is conveyed through a plurality of delivery units (13, 21, 23) arranged one behind the other, at least one of the delivery units (13) being attached to a movable carriage (32, 52), which carriage (32, 52) can be moved along a guide rail (33) between an operating position and an operating position by means of a drive (38), characterized in that the carriage (32, 52) is moved by a sliding element (36) is guided on the guide rail (33) and that the sliding element (36) is coupled to the drive (38) by a connecting means (37, 66) moved parallel to the guide rail (33)

Texturing machine according to 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 is connected to the sliding element (36) by magnetic forces

Texturing machine according to claim 1, characterized in that the connecting means is a cable (37), that the drive (38) is a cylinder

(44) and a piston (45) guided in the cylinder (44), that the piston (45) is connected to the cable (37) and that the piston (45) for moving the carriage (32) within the cylinder (44 ) is pressurized with compressed air

Texturing machine according to claim 3, characterized in that the cable pull (37) consists of two cables (42 1, 42 2) which are each guided over an upper roller (40) and a lower roller (39) and each with one end are attached to the piston (45) and with the opposite end to the sliding element (36), and that the cylinder (44) has an inlet at each end

(46) through which one of the ropes (42) is guided

Texturing machine according to claim 4, characterized in that a seal (47) is arranged in the inlet (46) of the cylinder, through which the cable (42) is guided.

Texturing machine according to one of Claims 2 to 5, characterized in that the piston (45, 66) for moving the sliding element (36) in its direction of travel and in its travel speed can be controlled by a control valve (43).

7. Texturing machine according to one of the preceding claims, characterized in that a pivoting means (55) is provided for executing a relative movement between the slide (52) and the sliding element (36) and in that the slide (52) in the operating position by the pivoting means ( 55) from a sliding position (60) into a deflecting position (59) and vice versa.

8. Texturing machine for texturing a large number of thermoplastic threads in each processing point, in which the thread (4) is conveyed through a plurality of feed mechanisms (13, 21, 23) arranged one behind the other, at least one of the feed mechanisms (13) being attached to a movable carriage ( 52) is attached, which carriage (52) can be moved by means of a drive (38) along a guide rail (33) between an operating position and an operating position, characterized in that a pivoting means (55) for executing a relative movement between the

Carriage (52) and a sliding element (36) is provided, the carriage (52) being guided by the sliding element (36) on the guide rail (33) and that the carriage (52) in the operating position by the pivoting means (55) a sliding position (60) into a deflecting position (59) and vice versa.

9. Texturing machine according to claim 7 or 8, characterized in that the pivoting means is designed as a pivoting gear, that the sliding element (36) and a thrust element (56) are slidably mounted one behind the other on the guide rail (33), that the thrust element (56) and the sliding element (36) is connected to the slide (52) by the swivel gear (55) and that the swivel gear (55) can be moved by a relative movement between the sliding element (36) and the thrust element (56) such that the slide (52 ) is pivoted from the sliding position (60) into the deflection position (59) and vice versa.

10. Texturing machine according to claim 9, characterized in that the swivel gear (55) has a swivel axis (57) and a swivel arm (58), the carriage (52) through the swivel axis (57) with the thrust element (56) and through the Swivel arm (58) is connected to the sliding element (36) and the swivel arm (58) in its end regions

Has pivot joints (61, 62).

11. Texturing machine according to one of claims 9 or 10, characterized in that to trigger the relative movement, the thrust element (56) at the end of the guide rail (33) in the operating position to one

Stop (49) can be moved and that when the drivable sliding element (36) bears against the thrust element (56) the deflection position (59) of the slide (52) is reached.

12. Texturing machine according to one of claims 9 to 11, characterized in that the swivel gear (55) is designed such that the slide (52) in the deflected position (59) by the sliding element (36) and the thrust element (56) on self-locking the guide rail (33) is held.

13. Texturing machine according to one of the preceding claims, characterized in that the delivery mechanism (30) with a drive (54) is attached to the carriage (52), the drive (54) being connected in the operating position to an energy supply connection (65) .

14. Texturing machine according to one of claims 1 to 13, characterized in that the delivery mechanism is a conveyor roller (30) with a circumferentially formed zigzag-shaped thread track (31) and that the conveyor roller (30) in the operating position immediately before Input of a heating device (18) is arranged.

15. Texturing machine according to claim 14, characterized in that the conveyor roller (30) on the carriage (52) is arranged relative to the thread run in such a way that the conveyor roller in the deflected position has a thread wrap that is larger than the thread wrap in the sliding position.

16. Texturing machine according to claim 14 or 15, characterized in that the conveyor roller (30) is assigned a guide means (70, 73) for changing the thread wrap and that the guide means (70, 73) is movable relative to the conveyor roller such that the thread in a contact position without contact to the thread track (31) on the circumference of the conveyor roller (30) and in an operating position with contact to the thread track (31) on the circumference of the conveyor roller (30).

17. Texturing machine for texturing a large number of thermoplastic threads in each processing station, with a plurality of delivery units (13, 21) arranged one behind the other for conveying and stretching the thread (4) in the processing unit, at least one of the delivery units (13) being a driven conveyor roller (30) which is partially wrapped around the circumference by the thread (4) and which passes the thread (4) in a thread running track (31) formed on the circumference by a plurality of guide elements (70, 73) Promotes friction, and with a guide means (70, 73) for guiding the thread (4) in the vicinity of the conveyor roller (30), the guide means (70, 73) for changing the thread wrap on the conveyor roller (30) between a feed position and a Operating position is movable, characterized in that the guide means (70, 73) can be moved relative to the conveyor roller (30) in such a way that the thread in the feed position without contact with the thread running track (31) on the circumference of the conveyor roller (30) and in the operating position with contact to the thread track (31) on the circumference of the conveyor roller (30) is promoted.

18. Texturing machine according to claim 16 or 17, characterized in that in the application position the guide means (70, 73) between the thread and the circumference of the conveyor roller (30) is arranged so that the thread without contact with the guide elements (79, 80 ) is guided, and that by moving the guide means (70, 73) from the contact position into the operating position of the

Thread is passed from the guide means (70, 73) to the conveyor roller (30).

19. Texturing machine according to claim 18, characterized in that the guide means is a guide plate (70) covering the guide elements (789, 80) with the thread running track (31) on the circumference of the conveyor roller (30), which in the application position is essentially over the extends from the thread (4) wrapped circumferential region of the conveyor roller (30).

20. Texturing machine according to claim 19, characterized in that the contact plate (70) is formed symmetrically to the circumference of the conveyor roller (30) and that the contact plate (70) is movable in the circumferential direction of the conveyor roller (30).

21. Texturing machine according to one of claims 19 or 20, characterized in that the feed plate (70) has an inlet thread guide (82) and has an outlet thread guide (81) which are arranged at a distance from one another in the circumferential direction of the conveyor roller (30).

22. Texturing machine according to claim 21, characterized in that the inlet thread guide (82) and / or the outlet thread guide (81) are designed such that in the application position of the contact plate (70) the thread (4) at least partially on the surface within the looping area of the feed plate (70) is guided.

23. Texturing machine according to claim 21 or 22, characterized in that the inlet thread guide (82) and / or the outlet thread guide (81) are designed such that in the operating position of the feed plate (70) of the thread (4) within the looping area on the circumference of the Conveyor roller (30) is guided in the thread track (31).

24. Texturing machine according to one of claims 18 to 23, characterized in that the guide means (73) is connected to a swivel arm (74), which swivel arm (74) is attached to a rotary bearing (75) arranged in the axis extension of the conveyor roller (30) is.

25. Texturing machine according to one of claims 18 to 24, characterized in that the guide means (73) in a concentric to the circumference of the conveyor roller (30) formed guide groove (77) of a guide device (76) arranged laterally next to the conveyor roller can be guided.

26. A method for applying a thread in a processing point of a texturing machine, in which the thread for drawing is guided through at least two delivery mechanisms driven with a speed difference, the slower delivery mechanism being a driven conveyor roller which is partially wrapped around the thread and which surrounds the thread in one formed by several guide elements on the circumference Thread track promoted by friction, characterized in that the thread is conveyed without substantial contact to the guide elements of the conveyor roller by the faster delivery mechanism and that for the engagement of the conveyor roller, a guide means is moved such that the thread runs into the thread track, so that the through Conveyor roller friction on the thread increases with progressive movement of the guide means until the slip-free conveyance.