CA1097048A - No translation available - Google Patents

Abstract

Method for the transfer of at least one textile thread in movement, deliberate and treated continuously, from a first treatment zone to a second treatment zone spaced from each other by a distance such as an operator posted to one of the two zones cannot reach the other. The method according to the invention is characterized in that it comprises an evacuation of the wire at the level of the first treatment zone with maintenance under tension, a displacement of the wire from the first to the second treatment zone by means of a movable member between the two zones, while continuing its evacuation, and gripping the wire at the second treatment zone for its placement in the desired location. The invention also relates to a device for implementing this method, characterized in that it comprises, in combination a pneumatic discharge member for the wire which can be positioned at the first treatment zone, a member for moving the wire movable from the first to the second treatment zone, and a wire gripping and positioning member, at the level of the second treatment zone, The invention is applicable in particular to the simultaneous transfer of several wires (16 to 24 and plus) delivered continuously at speeds of 4,000 to 6,000 meters / minute and more.

Description

The present invention relates to a method and a textile yarn transfer device which can progress great speed.
In the textile industry, the transfer operation many applications such as launch machines, floor crossing in the case of processes; ~
whose implementation has at least two stages and, in general, whenever we want to switch automatically - a high speed animated wire - a processing device to another processing device, the above listing not being limiting. l-Pneumatic means are commonly used to wire transfer in the above cases. So the patent fran, cais N 2 055 924, taken on behalf of the plaintiff, claimed that a method and a device for transferring yarns using a fixed pneumatic nozzle located at the level of the first 4 treatment zone according to which the wire and the air injected through the nozzle are guided, from the outlet of said nozzle to -the second treatment zone, by means of a guide channel relian ~ the nozzle to the second processing device, At level ~;
from the second processing device, the wire is first evacuated `~
,; ,::
pneumatically with waste, before being taken up by a handling device for its installation in the place ~ -;
longed for. The above device is generally satisfactory.
However, it requires an air consumption which, for average yarn count (160 to 200 dtex) is around 20 to 70 Normal m3 / hour and per wire.
Now, it is now usual to transfer simultaneously-several sons (16 to 24 and over). This is what happens at the start of a spinning position. This represents a significant instantaneous consumption which, in the case of a high number of positions, will be repeated frequently. It is necessary therefore have a high speed facility capable of providing the amount of air.
On the other hand, the use of pneumatic nozzles leads to noise nuisance. Furthermore, when we want transfer a large number of wires simultaneously (16 to 24 wires and more), care must be taken to keep each thread its path clean and avoid tangling.
The present invention proposes to provide a more advantageous method and device for wire transfer than the existing means.
It relates to a process for the transfer of at ~
- minus one textile thread in movement, delivered continuously, of one - -first treatment zone to a second treatment zone, located ~ distance from each other, characterized by the fact that it includes the following phases:
- - wire discharge at the first zone of treatment with maintenance under tension, - moving the thread from the first to the second treatment area by means of a movable member between the two zones, while continuing its evacuation, and - wire capture at the second zone of treatment for its installation ~ the desired location.
According to a first mode of implementation, the different ; annuity phases of the process can take the following forms:
- evacuation of the wire at the level of the first zone treatment is carried out by a pneumatic setting means ~
waste, after passing the wire around a guide capable of being moved from the first ~ second treatment area, - moving the guide from the first to the second treatment zone drives the wire which then describes a round trip between the two zones, while continuing ~ be evacuated to the level of the first zone, and ~ 7048 - entering the wire in the second zone of processing is carried out on the "go" strand located upstream of the; ~
guide, preferably by means of a handling device capable of grasping a moving wire 50US tension. We use advantageously an air pistol.
According to a second embodiment, the different The phases of the process can take the following forms: -- the wire is evacuated by pneumatic means as waste disposal, mounted mobile from the first to the second treatment zone and thus constituting the wire displacement, `
- the displacement of the pneumatic setting means waste, from the first to the second treatment zone entrains the wire and causes its transfer, and -- the thread is seized by means of a device tif of manipulation capable of grasping a moving wire under -voltage. Advantageously, a pneumatic gun is used.
The invention applies to the simultaneous transfer of -several sons, for example 16 to 24 and more. The given voltage over is the one that is necessary to avoid the facelift on the delivery organs and maintain each of them on a separate and precise route to the moving part ensuring their displacement. Indeed, we must avoid tangles and, in addition, each wire must be capable of being selectively gripped to its placement in the desired location at the second ~ me area treatment.
The above process is applied to wire ~ progress-health at high speeds, i.e. around 4,000 at 6,000 meters / minute and more. Obviously, the means of evacua-waste, as well as the means of handling level of the second treatment area, must be able to operate properly at these speeds, especially with "`: 1097048 `voltage conditions required. ; ~
The invention also relates to a setting device using the method described above. r The device according to the invention is characterized by the fact that it includes a wire evacuation member, posi-operable at the level of the first treatment zone, a means for moving the movable wire from the first to the second treatment area, and a means of handling capable of -grab a moving wire under tension, at the second treatment area.
According to a first corresponding embodiment in the first mode of implementation of the method, the dispositi ~
includes: ~
- a pneumatic waste evacuation device located;
at the level of the first treatment area, - a wire guide roller, rotating and movable in translation between the first and the second treatment zone, - a wire manipulation means capable of grasping a moving wire under tension at the level of the second zone treatment.
The pneumatic waste disposal unit, located ~ at the level of the first treatment zone, can be either j fixed, or mobile while remaining in said first zone.
In the second case, it is advantageously constituted by a pneumatic handling gun.
The rotary roller can be crazy and e ~ dragged in rotation by the wire, or positively driven. For fine yarns which may be powerless to overcome the inertia of the roller, this the latter will advantageously be positively driven. In this In this case, the drive is preferably carried out by a motor with sliding (fluid turbine, electric sliding motor).
The torque provided by the positive drive gives the roller a speed substantially equal to or slightly lower than the speed of the wire, allowing the sliding of the wire on the roller. The en positive drag promotes the call of the thread. It thus maintains a minimum tension on the upstream strand which prevents any backfilling on the delivery organs of the first treatment zone and gives each wire a precise path. It also avoids a increase in tension on the downstream strand, tension which could to be prejudicial in the case of fine threads. Movement of translation of the roller between the first and the second zone processing, is carried out by any known means such as: `
rack, belts, jacks, linear electric motor, etc ...
The wire handling means, capable of grasping a moving wire under tension at the level of the second zone ~ -is advantageously a pneumatic means comprising both a wire capture and drive nozzle;
described in Canadian patents Nos. 1.020.735 and 1.029.354, in the name of the Applicant.
The nozzle has in particular a passage channel widening from upstream to downstream, provided with a capture slot extending along a generator and two gaseous fluid supply ducts substantially parallel to the axis of the canal and opening into it. Such a nozzle allows to grip a wire moving under tension and with great speed (6,000 meters / minute and more).
When it comes to transferring multiple wires simultaneously-ment, which is a frequent case, means are provided for keep the wires separated at least on the upstream strands (for relative to the roller) and on the roller. These means simply are separator guides or combs. For example, a first separator comb will be placed at the exit of the first ~ 097048 :.
treatment area and a second separator comb will be arranged immediately upstream of the roller and integral with translation of the latter. These separating means favor selective input of threads, individually or in groups at the level of the second treatment zone, for putting them in place.
According to a second corresponding embodiment - in the second mode of implementation of the method, the device c, includes:

- a pneumati ~ ue organ for waste evacuation, mobile in translation between the first and the second ~ me zone treatment, - a means of handling the fi ~ capable of grasping a live wire moving at high speed at level of the second treatment area.
The pneumatic waste disposal unit is `
advantageously of the handling pistol type. But he is ;' secured to a carriage that can move in translation between the first and the second treatment area. The food, compressed air, as well as the evacuation of air and wire, made by means of tu ~ es flexible.
'The means ensuring the displacement of the carriage are of the same type as those ensuring the movement of the roller, in the previous achievement.
The means of manipulation, at the level of the second treatment area, is advantageously of the same type as the one used in the first realization.
In the simultaneous transfer of several children, separating means are provided as in the embodiment former. For example, there will be a separator comb arranged the exit from the first treatment area, and a comb separator integral with gold ~ pneumatic evacuation donkey '. , ^. ,,:

~ ~ 97048 waste, located upstream of the point of penetration of the wires into said means.
But the invention will be better understood using examples below ~ after, given by way of illustration but not limitation. ~;
These examples relate to the transfer of yarn, in spinning, from a upper stage where the wire is spun and drawn, on a lower stage where the wire is returned (after possible cooling to open air between the two floors). In the attached drawings:;
- Figures 1 and 2 schematically illustrate a first example of embodiment with movable roller, and FIG. 3 illustrates a second exemplary embodiment tion.
In Figures 1 and 2, there is shown schematically a melt spinning installation, for example of polyester, with a higher level of drawing spinning I, and a level winding lower II. The extruded filaments of a device spinning wire 1, pass through a non-cooling cell represented, and are gathered in 4 distinct wires: Fl, F2, F3, F4, at the level of a convergence guide 2. The 4 wires are taken up continuously to be stretched simultaneously between a train of delivery rollers 3 and a train of rollers stretchers 4. At the exit of the stretching train 4, the wires must be transferred to the lower level of winding on a device rewinding tif 5. This comprises a pilot cylinder 6, in frictional contact with two pins 7 and 8, each intended to receive two windings. Pilot cylinder 6 aims to fix the speed p ~ ripherique of the winding while providing all or part of the necessary torque ~ his training. The wire is distributed back and forth along the pins, by means of a back-and-forth device 9. The transfer wires, from level I to level II, is carried out using the device according to the invention. Said device comprises a ,,: ,,,,., ::.

~ 097048 rotating roller 10, movable in translation on a slide 11, between level I and level II. The roller is driven in rotation substantially at the speed of advance of the wires, by a gaseous fluid turbine 12. The device is completed by a waste handling and evacuation gun 13, located on level I, and by two separating combs 14 and 15, located ~ s upstream of the roller 10, the comb 14 being fixed and the comb 15 integral in translation with the roller 10.

The operation of the device is as follows:
At the exit of the stretching roller train 4, the 4 wires Fl, F2, F3, F4, are handled by an operator by means from the pistol 13. The wires are passed through the separating comb 14, in the comb 15, around the roller 10 driven in rotation, and, are evacuated to waste by the pistol 13. The 4 wires follow identical but distinct routes between the guide of convexency 2, and the pistol 13, in particular, they remain well separated on the roller 10. The roller 10 is then down to rewinding level II. The roller 10 having reached his arrival point at level II, the 4 sons follow the paths represented in FIG. 2, while continuing to be called by the pistol 13. They are then seized one after , the other, by the capture nozzle 16, manipulated by an operator, and hooked ~, s on their respective pin: for example, Fl and F2 on pin 7, F3 and F4 on mouth 8. As already reported, the nozzle 16 is of the type described in the patents Canadian Nos. 1.02Q.7 ~ 5 and 1.029.354 cited above.
The roller 10 is driven by the turbine 12 for fine wires or medium (160 to 200 dtex). For headline threads, the turbine can be removed. The roller is mounted mad; he is driven by the wires without creating disturbance in the progression of these.
For example, a device such as sch ~ matisé

. ~ J ~,!

. "- j, -,.. -.

above, allows the transfer of 16 to 24 wires from S0 dtex / 22 strands, progressing to 4,000 meters / minute, while retaining sufficient tension between the stretching train 4 and the pistol 13, this voltage is greater than 10 g. Compared to the disposi- ~ -~ tif pneumati transfer ~ eu, it allows air saving compressed in the range of 20 to 70 normal m3 / hour / wire, this counts given the amount of air required to drive the turbine 12.
A high-flow air installation is no longer necessary. On the other hand, the nuisance created by noise compressed air ~ in the usual transfer device, are avoided. In addition, the wires remain well separated and can be perfectly gripped by nozzle 16. - ~
Figure 3 shows another embodiment of the device according to the invention.
This is the same spinning installation than in FIGS. 1 and 2, the same references designating the same elements. The transfer device consists of the nozzle 13, slidingly mounted in the slide 11, between the level I and level II. The separating comb 15 is integral with the nozzle 13. Advantageously, the nozzle 13 is mounted in the slide-era 11 via a carriage 17, which is mounted permanently sliding in the slide 11. The nozzle is mounted on the carriage removably, allowing it to be used as a handling gun for placing the wires around the stretching train 3 and 4, then to secure it then with the carriage 17 for transfer. Nozzle 13 can also be permanently mounted, sliding in the slide 11. In this case, it may be necessary to use another handling pistol for placing wires in level I. Air supply to nozzle 13 and exhaust waste, is advantageously done through _ 9 _ flexible, foldable and unfoldable lines depending on the position nozzle 13 on the slide.
The operation of the device is as follows:
Using the nozzle 13, the wires are put in place in device 3-4, then in comb 14. We secure the nozzle 13 of the carriage 17, after taking care to position ~ -correctly the wires in the comb 15 (representation in ~;
dotted). We carry out the transfer by lowering the carriage 17 and the nozzle 13 at the position below the level ; 10 II, the wires continuing to be called up and evacuated by the nozzle 13. The placement of each wire on its return pin 7 or 8 is carried out with the capture nozzle 16, as in the; ~
previous case.
Obviously, as has already been signed, the invention - tion, whatever its embodiment, is not limited to the transfer of 4 sons. It allows simultaneous transfer a number of wires up to 16 ~ 24, and more.
Similarly, it applies to threads of all titles, of origin artificial, synthetic or mineral, delivered continuously to high speed of the order of 4,000 to 6,000 meters / minute and more. ~ -:

Claims (11)

The embodiments of the invention, about which an exclusive right of property or privilege is claimed, are defined as follows: 1. Method for transferring at least one wire textile in movement, deliberate and treated continuously, of a first treatment area to a second treatment area spaced from each other by a distance such as an operator posted to one of the two areas cannot reach the other, characterized by the fact that it comprises the following phases:
- evacuation of the wire at the level of the first zone of treatment with maintenance under tension, - moving the thread from the first to the second treatment area by means of a movable member between the two zones, while continuing its evacuation, and - wire entry in the second zone of treatment for its placement in the desired location. 2. Method according to claim 1, characterized by the fact that:
- evacuation of the wire at the level of the first zone treatment is carried out by pneumatic setting means waste, after passing the wire around a guide capable of being moved from the first to the second treatment area, - moving the guide from the first to the second treatment zone entrains the wire which then describes a path round trip between the two areas, while continuing to be evacuated to the level of the first zone, and - entering the wire in the second zone of processing is carried out on the "go" strand located upstream of the guide, by means of a handling device capable of grab a moving live wire. 3. Method according to claim 1, characterized by the fact that:
- the wire is removed by a means tire for waste disposal, mounted mobile from the first to the second treatment zone and thus constituting the organ wire displacement, - the displacement of the pneumatic setting means waste, from the first to the second treatment zone entrains the wire and causes its transfer, and - the thread is captured by means of a device handling capable of grasping a moving wire under voltage. 4. Method according to claims 1, 2 or 3, for the transfer of at least two sons, characterized in that the evacuation and displacement of the wires from the first to the second zone is performed simultaneously for all the wires and that entering at the level of the second zone and setting place is carried out separately wire by wire. 5. Device for transferring at least one wire textile in movement, delivered and treated continuously, of a first treatment area to a second treatment area spaced from each other by a distance such as an operator carried to one of the two zones cannot reach the other, character-laughed at by the fact that it includes, in combination:
- a pneumatic discharge device for the position wire-level in the first treatment area, a member for moving the movable wire of the first to second treatment area, and - a wire gripping and positioning device, level of the second treatment area. 6. Device according to claim 5, characterized by the fact that the wire displacement member is constituted by a rotary guide roller, movable in translation of the first to second treatment area. 7. Device according to claim 6, characterized by the fact that the guide roller is mounted idly. 8. Device according to claim 6, characterized by the fact that the guide roller is positively driven. 9. Device according to claim 5, characterized by the fact that the wire displacement member is constituted by the pneumatic evacuation device itself, mounted mobile from the first to the second treatment area. 10. Device according to claims 5, 6 or 9, for the simultaneous transfer of at least two wires, characterized by the fact that it includes means for separating the wires available located upstream of the mobile displacement member. 11. Device for transferring at least one wire in a wiring installation, between a higher level of spinning-drawing and a lower level of winding, characterized by the fact that it is constituted by a device according to claims 5, 6 or 9.