DE2842838A1 - TRANSPORT DEVICE FOR FAEDEN - Google Patents

Description

RHONE-POULENC TEXTILE, Paris, France Transport device for threads

The invention relates to a method and a device for Transport of textile threads that run at high speed.

The process of guiding textile thread takes place in the Numerous applications in the textile industry, such as the Start-up of textile machines involved in the production of false floors are penetrated and which have at least two floors when commissioning and generally whenever a Thread automatically moved at high speed from one treatment device to the next treatment device , the list of the above-mentioned use cases could be expanded at will.

In the above application, pneumatic ones are usually used Devices for guiding the threads. FR-PS 2 055 by the same applicant claims a method and a device for guiding threads with the help of a pneumatic nozzle, which is fixed at the level of the first treatment zone is, and according to which the thread is guided from the mouth of the in accordance with the air blown through the nozzle Nozzle up to the second treatment zone with the help of a guide channel, which connects the nozzle with the second treatment zone. The thread is first pneumatically fed to the scrap at the level of the second treatment device before it is is taken over by a facility that guides him to the desired location. This device works in general satisfactory. However, for threads of medium fineness (160 to 200 dtex) it requires an amount of air in the size

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Order from 20 to 70 Nno / h / thread.

It is now common practice to run several threads at the same time (16 to 24 and more). This number is in spinning mills common. This represents a high instantaneous air consumption

,. ,. . i _ .. i_j. λ .-. Spinning positions .. ". . · ,, - ,. which repeats with an increased number of / haufxg will! There must therefore be a system with high performance that can deliver the required amount of air.

On the other hand, the use of pneumatic nozzles has disadvantages from the point of view of noise generation. It is also necessary if you have a larger number of threads at the same time wants to monitor (16 to 24 threads and more) that every thread stays in the right path and that every tangle is avoided will.

The invention provides a method and apparatus for guiding threads which compared with the known devices have great advantages.

It has a method for guiding at least one textile thread continuously from a first treatment zone is promoted to a second treatment zone, the are spaced apart, and is characterized by the following procedural steps:

the suction of the thread at the level of the first treatment zone while maintaining the tension,

guiding the thread from the first treatment zone into the second treatment zone with the help of one between the. both zones movable organ 'while maintaining the suction,

grasping the thread at the level of the second treatment zone to introduce it in the desired place.

According to a first embodiment of the device

can follow the different steps of the procedure

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Way to be executed:

- The suction of the thread at the level of the first treatment zone takes place with the help of a pneumatic device that promotes the committee after the thread is passed around a guide that can be moved between the first and second treatment zone,

the shifting of the guide from the first treatment zone to the second treatment zone causes the thread to be carried along, which now stretches back and forth between the two treatment zones while still at the same level as the first The treatment zone is sucked in,

grasping the thread at the level of the second treatment zone happens on the running thread in front of the guide and preferably with the help of a device, which is suitable for gripping a thread running under tension. It is advantageous to use a pneumatic one Pistol.

According to a second, preferred embodiment, the various Process steps carried out in the following manner will:

The thread is sucked in via a pneumatic one Means that convey to the reject, is movably mounted between the first and second treatment zones and the organ for guiding the thread

moving the pneumatic device that conveys to the scrap from the first treatment zone to the second treatment zone ,. takes the thread with it and causes it to continue

the thread is gripped with a device which is suitable for a thread running under tension to continue. Advantageously, Dian uses a pneumatic pistol for this purpose.

The invention can be used for the simultaneous further transport of several

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Threads, for example 16 to 24 and more, can be used. The tension applied to the thread is so great that a Avoid drooping from the seizure organs and everyone is kept by them on a precisely defined path up to the movable organ that ensures its continuation. It is important, on the one hand, to avoid entanglements, and on the other hand, each thread must have a separate "al η desired" Place at the level of the second treatment zone can. '

The method described above is applicable to threads which are conveyed at high speeds, i.e. in the Range of 4000 to 6000 m / min and more.

The suction devices that convey to the reject must also *; ie the handling devices at the level of the second treatment zone suitable for correct work at these speeds, and especially with the required tension be.

The invention also relates to a device for carrying out the method.

It relates to a device for guiding at least one thread, which is continuous between a first and a second treatment zone is conveyed, and it is characterized by a suction element for the thread, which is on the level of the first treatment zone is adjustable and one Device for further transport of the running thread from the first treatment zone to the second treatment zone and one Handling device which is suitable for feeding a thread running under tension on the Mxveau of the second treatment zone capture.

According to a first embodiment that applies to the first type of Implementation of the method is suitable, comprises the device

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the following features:

- A pneumatic suction device that promotes the committee on the level of the first treatment zone,

- a thread guide roller, which is rotatable and between the first and the second treatment zone is movable,

- a Förderhandhabmgseinrichtung that is suitable, a thread running under tension at the level of the second treatment zone capture.

The pneumatic suction element, which conveys to the reject and is located at the level of the first treatment zone, can be fixed mounted or loose, although it remains in the first treatment zone. It is advantageous in the second pail from a pneumatic gun.

The rotatable guide roller can run loosely and is set in rotation or forcibly driven by the thread. In the case of fine threads that cannot overcome the roll's moment of inertia, it is advantageously forced to drive it. In this case, the drive is advantageously carried out by a motor that allows a slip (a fluid turbine, an electric motor). The moment generated by the forced drive gives the roller a peripheral speed that is approximately the same as or slightly less than the speed of the thread so that the thread can slide on the roller. The forced drive favors the passage of the thread. In this way, it maintains a minimal tension on the upstream thread, which avoids any tangling on the conveying elements of the first treatment zone and gives each thread a precise trajectory. It also avoids an increase in the tension on the downward movement of the thread, a tension which can be disadvantageous in the case of fine threads. The translational movement of the roller between the first and second treatment zones is carried out by known means, such as: a rack, a belt, a lifting device, electric linear motors, etc.

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The device for guiding the thread capable of keeping the thread under tension at the level of the second Gripping the treatment zone is advantageously a pneumatic one Device which includes a catch and take-along device for the thread, as in the FR assumptions. 73/44960 and No. 74-13119 by the same applicant.

In particular, the nozzle comprises a through-channel which widens in the direction of movement of the thread and which has a catch slot is equipped, which extends along a surface line and has two passages for gaseous medium, which run essentially parallel to the axis of the channel and open into it. Such a nozzle allows gripping a thread running under tension at high speed (6000 / m / min and more).

If several threads are to be transported simultaneously, which is often the case, devices are provided to at least the upstream threads (with respect to the guide roller) and separated from one another on the guide roller to keep. These simple devices are separating guides or separating combs. A first separating comb can, for example, on Exit of the first treatment zone and a second separating comb can be arranged directly in front of the guide roller in the direction of movement and execute a translational movement with it. These separating means favor the separate gripping of the threads, these being separated or in groups at the level the second treatment sz one can be recorded and sent to your desired Position can be brought.

According to a second embodiment, which corresponds to the second way of carrying out the method, the device comprises

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a pneumatic suction device that conveys to the reject and is movable between the first and second treatment zone,

a handling device for the thread that is suitable to grasp a thread running under tension at high speed at the level of the second treatment zone.

The pneumatic suction device that promotes the reject is advantageously a hand-operated pistol. she but is connected to a carriage that can move between the first and the second treatment zone. The supply compressed air is used, as is the suction of the air and the thread via flexible hoses.

The means for moving the carriage in the present embodiment are the same as those for moving the leadership role.

The handling device at the level of the second treatment zone is advantageously the same as that used in the first embodiment.

When several threads are conveyed at the same time, there are separating devices provided as in the previous embodiment. It can be there, for example, at the exit of the first Treatment zone a separating comb can be provided and another separating comb, which is connected to the pneumatic suction element for the discharge connected to the committee and arranged at a point before the entry of the thread into this device.

The invention is illustrated by the following examples. They concern the transport of the threads during spinning from a higher level, where the thread is spun and drawn , to a lower level, where the thread is wound up. (After any cooling in the ambient air between the two floors),

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1 and 2 show schematically a first embodiment with a movable guide roller, Fig. 3 shows a second embodiment.

In FIGS. 1 and 2, a melt spinning installation is shown schematically, for example for polyester, the spinning and drawing station being located on the higher level and the winding station on the lower level. The threads drawn from a spinning device 1 cross a cooling cell (not shown) and are joined together to form four threads: F1, F2, F3 and F4 at the level of a convergence guide 2.. The four threads are continuously drawn between a series of conveyor rollers 3 and a series of drawing rollers 4. At the exit of the stretching rollers 4, the threads must be conveyed to the lower level of the winding station on a winding device 5. This comprises a guide cylinder 6, which is in frictional engagement with two spindles 7 and 8, each of which takes two turns. The guide cylinder 6 is used to determine the circumferential speed of the winding, whereby it supplies part or all of the necessary torque for its drive. The thread is cross-wound onto the spindle with the aid of a reciprocating device 9. The transport of the threads from level I to level II takes place with the aid of the device according to the invention. This device comprises a revolving roller 10 which is displaceable along a guide track 11 between level I and level II. The roller is rotated by a gas turbine 12 at substantially the speed at which the threads are driven. The apparatus further includes a suction gun 13, which promotes the Committee and is located at the level I, and further two separation ridges 14 and 15 which move upward for the roller 10 are arranged, where the comb is fixedly mounted 14 and the comb 15 with the guide roller 10 moves.

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The device works in the following way:

At the exit of the row of stretching rollers 4, the four threads F1. _V F2, F3 and F4 detected by an operator with the aid of the suction gun 13. The threads are guided past the separating combs 14 and 15, then around the rotating guide roller 10 and then fed through the suction gun 13 to the rejects. The four threads always follow the same but separate paths between the convergence guide 2 and the suction gun 13; they remain in particular well separated on the guide roller 10. The guide roller 10 is now brought down to the level n of the winding station. The roller 10 has then reached its starting position at level II, and the four threads follow the paths shown in FIG. 2 while they are still being picked up by the suction gun 13. They are now detected one after the other by the catching nozzle 16, which is operated by an operator, and hung on their associated spindle. F1 and F2, for example, on spindle 7 »F3 and F4 on spindle 8. The nozzle 16 is of the type described in FR patent applications 73/44960 and 74/131119. The guide roller 10 is driven by the gas turbine 12 for fine or medium threads (160 to 200 dtex). The turbine can be omitted with thicker threads. The guide roller can be rotated loosely; it is set in rotation by the threads without them becoming tangled.

The device described schematically above allows, for example, the transfer of 16 to 24 threads with 50 dtex / 22 ends, which run at 4000 m / min, whereby a sufficient tension is maintained between the stretching roller 4 and the suction gun 13, which is more than 10p. Compared to a pneumatic guide device, it allows compressed air to be saved in the order of magnitude of 20 to 70 Nm- ⁵ / h / thread, which includes the air requirement for driving the gas turbine 12.

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It is no longer necessary to set up air handling systems with high throughput. On the other hand, the noise problems, which are caused by the noise of the compressed air in conventional transport devices, avoided. Furthermore, the Threads are well separated and can be completely absorbed by the catching nozzle 16.

Fig. 3 shows a further embodiment of the invention.

The structure of the spinning system is the same as in FIGS. 1 and 2, the same reference symbols denoting the same components. The transfer device consists of the nozzle 13 which is slidably mounted on the guide track 11 between level I and level II. The separating comb 15 is connected to the nozzle 13. The nozzle 13 is advantageously held on the guide track 11 by a slide 17 which is mounted on the guide track 11 so as to be displaceable with a sliding guide. The nozzle 13 is detachably mounted on the carriage, whereby it can also be operated by hand in order to guide the threads around the row of stretching rollers 3 and 4 and then to attach the nozzle 13 again to the carriage 17 for the transfer process. The nozzle 13 can also be permanently mounted on the sliding guide of the guide track 11. In this case it may be necessary to use another hand-operated suction gun to position the threads on level I. The air supply for the nozzle 13 and the waste suction can preferably take place via movable lines which, depending on the position of the nozzle 13 on the guide track, can be folded or pushed together.

The device works in the following way:

With the help of the nozzle 13, the threads are placed around the drafting rollers 3 and 4 and then into the separating comb 14. The Nozzle 13 on the carriage 17 'after one is convinced of it

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has that the threads run properly in the separating comb 15 (shown with broken lines). The transfer process is started in motion by bringing the carriage 17 and the suction nozzle 13 to the lower level II, the threads continue to be sucked in by the suction nozzle 13. Each thread is threaded onto the rocking spindles 7 or 8 mit.der catching nozzle 16, as in the previous case.

As already indicated, the device according to the invention is not limited to a transfer device of only four Threads. It allows the simultaneous transfer of 16 to 24 and more threads. It can also be used for threads of any thickness, which can be artificial, synthetic or mineral in origin and continuously at a rate in of the order of 4000 to 6000 m / min and more can be conveyed.

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Claims (10)

Dr. F. Zumstein Sr. - Dr. Γ ;. AoS / narm ■ Cr. R. “Coenigsberger Dipl.-Phys. R. Holzbauer - Dspl.-lng. l ^: Kiin ^ seisen - Cr F. Zumetein ϊμτιλ q PATENTANWÄLTE ^ö BCX) O Munich 2 ■ Bräuhausstrasse 4 · Telephone collective no. 225341 Telegrams Zumpat Telex 529979 8 / Li / Zw.
DT.3977 EHONE-POULEHG TEXTILE, Paris / France S 35 ΐν * ΐΐ «Μ w * ΐ ^» ΐΐΐ ΐν «■■ V ^ ΐΐ ^^ ΐ ΐΐΐ * ΐ * ΐΐ 3 ^" ΐΐν ^^ · ^^ W "^ ίί · ΐΐ *" ϊ ΐΐ ^ JJ JU ^^ ΐ ^^ ΞΙ «ΐΐΐ ^ ΐ> «Ϊ́ ΐην MW ΐα« Β »C ^ b ^ Ξ" ^^ 3 "ί PATENT CLAIMS Ability to transfer at least one running textile thread, which is continuously delivered and treated, from a first to a second treatment zone that goes so far are distant from each other that an operator who is at one of the two treatment zones, the other can not achieve, characterized in that the thread is at the level of the first Treatment zone sucked in while maintaining tension from the first to the second treatment zone with the help of an organ that can move between the two zones is transferred while maintaining the suction, and that the thread is at the level of the second treatment zone is detected for insertion at the desired location. 909814/1080 ORIGINAL INSPECTED 2. The method according to claim 1, characterized in that - the suction of the thread at the level of the first treatment zone is effected by a pneumatic device which promotes the reject after the thread around a guide from the first to the second treatment zone postponed four den can, -'in the shift of the leadership from the first to the second Treatment zone of the thread is carried along, which is fed back and forth between the two treatment zones, wherein he is constantly sucked to the level of the first treatment zone will, and - catching the thread at the level of the second treatment zone takes place on the running thread in front of the guide, with the help of a device that has a running under tension .Thread can take up. 3. The method according to claim 1, characterized in that - The suction of the thread is effected by a pneumatic device that promotes the committee, and that of the the first to the second treatment zone is arranged to be movable and in this way forms the movement element for the thread, - the movement of the pneumatic device, which conveys to the reject, from the first to the second treatment zone, whereby the thread is taken along and transferred, - That the detection of the thread takes place by means of a manually operable device, which is under tension Can take up thread. 4 ·. Method according to one of the preceding claims 1 to 3 for transferring at least two threads, characterized in that the suction and transfer of the threads 9098U / 1080 from the first to the second treatment zone for all threads, takes place at the same time, and that the detection at the level of the second treatment zone and the positioning for each thread is carried out separately. 5. Device for performing the method according to claim 1, characterized in that it includes the following facilities: - a pneumatic suction device (13) for the load, which can be placed at the level of the first treatment zone, - an organ for the transfer (10, I7) of the filaments from the the first to the second treatment zone is movable, - a member for grasping (16) the threads at the level of the second treatment zone and for positioning the threads. 6. Apparatus according to claim 5 * characterized in that the organ for transferring (10, 17) the threads from a rotatable There is mounted guide roller, which is displaceable from the first to the second treatment zone. 7. Apparatus according to claim 6, characterized in that the guide roller is loosely rotatably mounted. 8. Apparatus according to claim 6, characterized in that the guide roller is forcibly driven. 9. Apparatus according to claim 5, characterized in that the organ for the transfer (10, 17) of threads is a pneumatic one Has suction element for the thread itself, which is displaceable from the first to the second treatment zone. 9098H / 1Ü80 10. Device according to one of claims 5 "to 9 for the simultaneous Transfer of at least two threads, characterized in that it comprises devices for separating the threads, the in the conveying direction in front of the movable organ for Transfer (10, 17) of the threads are arranged. 909814/108 0