EP3431427B1 - Procédé de fonctionnement d'un poste de travail d'un métier à filer ou d'un bobinoire et buse de fil - Google Patents

Procédé de fonctionnement d'un poste de travail d'un métier à filer ou d'un bobinoire et buse de fil Download PDF

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Publication number
EP3431427B1
EP3431427B1 EP18181068.0A EP18181068A EP3431427B1 EP 3431427 B1 EP3431427 B1 EP 3431427B1 EP 18181068 A EP18181068 A EP 18181068A EP 3431427 B1 EP3431427 B1 EP 3431427B1
Authority
EP
European Patent Office
Prior art keywords
thread
nozzle
section
suction
auxiliary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18181068.0A
Other languages
German (de)
English (en)
Other versions
EP3431427A1 (fr
Inventor
Bernd Bahlmann
Romeo Pohn
Adalbert Stephan
Mario Maleck
Robert Hagl
Christian Kettner
Evzen Pilar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
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Publication of EP3431427A1 publication Critical patent/EP3431427A1/fr
Application granted granted Critical
Publication of EP3431427B1 publication Critical patent/EP3431427B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method for operating a workstation of a spinning or winding machine.
  • a method for operating work stations of an open-end rotor spinning machine and a corresponding work station for carrying out the method are known, in which a first pivotably mounted suction nozzle and a second movably mounted suction nozzle are present.
  • the first pivotably mounted suction nozzle picks up a thread from a cheese and transfers the thread to the work station in the area of the spinning device.
  • the cross-wound bobbin reaches a predeterminable diameter, the winding process is interrupted and a cross-wound bobbin / tube change is initiated.
  • the thread produced is disposed of by the second suction nozzle, which can be positioned as required.
  • the movably mounted second suction nozzle When the incoming thread is transferred to an empty tube, the movably mounted second suction nozzle is positioned in such a way that the thread can be held in the appropriate position.
  • the disadvantage here is that two movably mounted suction nozzles are required.
  • the construction effort required for the mounting of the suction nozzles is complex and requires a high level of control effort.
  • the movement of the suction nozzles is time-consuming and at the expense of the productivity of the workplace.
  • a method and a device for re-spinning at workplaces of an open-end spinning machine after a cheese / empty tube change by an automatically operating service unit which has an auxiliary thread delivery device are known. It is provided that the auxiliary thread delivery device of the service unit transfers the beginning of an auxiliary thread to a workstation's own suction nozzle, which transfers the auxiliary thread to a workstation's own piecing element.
  • Another method for piecing a rotor spinning machine is, for example, in EP 1 285 983 A1 described, wherein a service unit is used and wherein the service unit has a pneumatic auxiliary thread supply and disposal device with a pivotably mounted thread delivery tube and a thread cutting device.
  • the object of the present invention is to propose a method which enables a simple and quick attachment of a thread to an empty tube.
  • auxiliary thread ie a thread that is not spun by the work station involved in the process or delivered from a delivery spool, is delivered from a thread nozzle to a suction device assigned to the work station.
  • the auxiliary thread can come from a supply of auxiliary thread that is part of the thread nozzle or is connected to it.
  • the thread nozzle itself can be part of the work station or a service unit (other designation: service robot) that can be moved along several work stations of the spinning or winding machine and that can carry out various service operations.
  • the thread nozzle is preferably connected to a compressed air source and supplies the thread with the aid of a compressed air pulse in the direction of the suction.
  • the suction is preferably part of the work site and comprises an opening through which a thread end of the auxiliary thread is sucked in.
  • the auxiliary thread runs through the suction between the thread nozzle and the suction and is thus stretched between the thread nozzle and the suction.
  • the auxiliary thread is severed, the severing point preferably being between the suction and the thread nozzle.
  • the auxiliary thread preferably stands still in this process section and is held by the suction and the thread nozzle.
  • the thread nozzle preferably comprises a pair of delivery rollers through which the auxiliary thread can be transported, if necessary, in the direction of an opening in the thread nozzle via which the auxiliary thread leaves the thread nozzle.
  • the pair of delivery rollers is used to fix the auxiliary thread in a fixed position in the thread nozzle when the rollers of the pair of delivery rollers are at a standstill. This is preferably the case during the aforementioned severing of the auxiliary thread.
  • the thread nozzle is preferably fixed immovably and / or in a stationary manner relative to the work site or relative to the service unit.
  • the cutting of the auxiliary thread creates a thread section of the auxiliary thread protruding into the suction and a thread section extending into the thread nozzle, which in turn can be held by the delivery roller pair and preferably protrudes a little bit from the thread nozzle.
  • the thread section protruding into the suction device is completely sucked in and removed with the help of the suction device, whereby the removal can take place, for example, via a vacuum channel extending over several work stations.
  • the thread section extending into the thread nozzle is captured by a thread acceptance device at the work station.
  • the thread acceptance is z. B. a thread delivery unit.
  • This can be formed, for example, by a rotor or air-jet spinning unit of the work station known from the prior art.
  • the thread end of the thread section extending into the thread nozzle is introduced into the rotor housing of the rotor spinning unit with the help of one or more thread handling elements of the work station or one of the service units delivered to the work station and / or with the help of an air flow.
  • the named thread end is guided into or through the air-spinning nozzle of the air-spinning unit in order to be connected to a sliver.
  • the auxiliary thread is then drawn into the air-jet nozzle together with the sliver connected to it.
  • a newly spun thread is also produced there, the first section of which is formed by the previously supplied auxiliary thread section.
  • the above-mentioned thread section extending into the thread nozzle thus serves as attachment thread, to which fibers from a sliver fed to the thread inlet are attached in the thread intake during the actual spinning process in order to then continuously produce thread.
  • the thread acceptance can also be a splice or knot unit of the work station, with the aid of which the thread section extending into the thread nozzle is connected to a thread end of a thread coming from a delivery spool of the work station.
  • the auxiliary thread which still extends into the thread nozzle, runs between the thread nozzle and the thread acceptance after the acceptance by the thread acceptance.
  • the thread section extending into the thread nozzle is severed, this being done by a cutting unit of the work station or a service unit can take place.
  • the cutting unit is preferably part of the thread nozzle or connected to it. In any case, a thread section remaining in the thread nozzle and a thread section coming from the thread receiving unit are created.
  • the thread section coming from the thread acceptance is delivered to the suction of the work site, whereby at this stage a new thread section is already being delivered by the thread acceptance (as described above), which follows the thread section that was originally part of the auxiliary thread.
  • the thread present at the work site runs at this stage between the thread acceptance and the suction.
  • thread is preferably continuously supplied by the thread receiving unit (e.g. produced by the rotor or air-jet spinning station).
  • the catch arrangement is, for example, a plush brush that partially surrounds the sleeve or a sleeve plate with fangs arranged in the area of an end face of the sleeve.
  • the thread section coming from the thread acceptance unit can be deflected in the direction of the sleeve with the aid of a thread deflector.
  • the thread deflector can be part of the thread nozzle.
  • the supply of the auxiliary thread from the thread nozzle to the suction takes place with the aid of a compressed air flow generated by the thread nozzle.
  • the auxiliary thread is preferably withdrawn from an auxiliary thread supply with the aid of said pair of delivery rollers, the beginning of the auxiliary thread being ejected from the thread nozzle with the aid of the compressed air flow and blown in the direction of the suction.
  • the auxiliary thread is supplied by the thread nozzle, then picked up by a suction section of the work station and only reaches the suction via the suction section.
  • the suction section can be formed by a suction slot of the work station, which is located, for example, in a housing of the work station.
  • the auxiliary thread runs from the thread nozzle into the suction section and from there into the suction, which can be located, for example, inside the housing and is preferably not visible from the outside.
  • the suction section is located between the thread nozzle and a thread inlet of the suction device.
  • the thread manipulator is preferably pivotable and can comprise a gripping section, for example an eyelet or a hook, which is initially arranged at a point through which the auxiliary thread passes when it extends from the thread nozzle into the suction. If the thread manipulator is then moved, e.g. B. pivoted, it deflects the auxiliary thread so that it then forms a loop that runs between the thread nozzle, the thread manipulator and the suction, whereby the auxiliary thread can also run over the suction section mentioned above before entering the suction.
  • a gripping section for example an eyelet or a hook
  • the aforementioned severing of the thread section extending into the thread nozzle takes place with the aid of a cutting unit of the thread nozzle within the thread nozzle, while the thread runs between the thread nozzle and the thread receiving means.
  • the above-mentioned thread section coming from the thread acceptance and the thread section also already mentioned remaining in the thread nozzle arise, the end of the last-mentioned thread section remaining in the thread nozzle.
  • the end of the thread section coming from the thread intake is also located in the thread nozzle and can be deflected by this in the subsequent process step and transferred to the suction system at the work station. This transfer, too, is preferably carried out with the aid of a compressed air flow generated by the thread nozzle.
  • the named end it is also possible in this case for the named end to be sucked in via the described suction section and only then to be grasped by the suction.
  • suction section In connection with the suction section, it should be pointed out that this can be in fluidic connection with the suction in such a way that the air sucked in by the suction is sucked in via the suction section.
  • the vacuum source of the suction section is thus formed by the vacuum source connected to the suction.
  • the transfer of the thread section coming from the thread acceptance to the suction system at the work site takes place with the aid of the thread nozzle.
  • the thread section coming from the thread take-up point is therefore directed by the thread nozzle in the direction of the suction, which can be done by the already mentioned compressed air flow of the thread nozzle.
  • the thread section coming from the thread acceptance then runs from the thread acceptance via the thread nozzle to the suction. Said thread section can run between the thread nozzle and the suction through the above-described suction section of the work station.
  • the thread section coming from the thread intake enters the thread nozzle through a first opening and exits the thread nozzle through a second opening.
  • the thread section coming from the thread acceptance runs in this case through the thread nozzle.
  • the auxiliary thread is released to the suction system via the first opening.
  • said thread section Before the cutting of the thread section coming from the thread intake in the area of the thread nozzle, said thread section finally enters the thread nozzle via the first opening.
  • the thread section produced after severing which runs from the thread receiving unit via the thread nozzle to the suction, also enters the thread nozzle through the first opening and exits it through the second opening.
  • a corresponding piecing process can take place in that the thread end of the thread section mentioned is introduced or sucked into a rotor spinning unit forming the thread intake and brought into contact there with individual fibers of the sliver while the rotor of the rotor spinning unit is rotating.
  • the thread end is brought into contact with the fiber sliver before it enters the air spinning unit and is drawn into the air spinning unit together with it.
  • the thread acceptance is a splicing or knotting unit of the work station of a winding machine.
  • the splicing or knotting unit connects a thread end of a thread coming from a delivery bobbin with the thread section coming from the thread acceptance before the thread section coming from the thread acceptance arrives the extraction system is handed over to the workplace.
  • the thread intake can of course also be formed by the splicing or knotting unit of an air-jet spinning machine.
  • the thread nozzle is part of a service unit which is mounted so as to be movable along several work stations of the spinning or winding machine.
  • the auxiliary thread should be made available by the service unit, which for this purpose can comprise an auxiliary thread supply, for example an auxiliary thread spool.
  • the thread nozzle for the provision of an auxiliary thread at a work station of a spinning or winding machine can be part of a service unit or also be fixedly attached to a frame or other holding arrangement of a work station of a spinning or winding machine.
  • the thread nozzle comprises at least a first opening and a second opening, both openings serving for the outlet and / or the inlet of an auxiliary thread.
  • the thread nozzle further comprises a compressed air inlet with a connection for a compressed air supply in order to blow an auxiliary thread out of the thread nozzle through the first or second opening and, as described above, to blow it in the direction of a suction device at a work station of a spinning or winding machine.
  • auxiliary thread In order to be able to influence the course of the auxiliary thread, it also includes a valve, with the help of which it can be determined via which of the two openings the air introduced via the connection for the compressed air supply exits the thread nozzle.
  • the valve preferably has a connection via which it can be connected to a control of a service unit or the said work station or a Control of the spinning or winding machine having the job can be connected in order to be able to automatically control the position of the valve.
  • the valve is preferably a multi-way valve, with the aid of which it can be determined whether the compressed air introduced into the valve flows out of the air nozzle via the first or the second opening.
  • the thread nozzle comprises a pair of delivery rollers, with the aid of which an auxiliary thread can be supplied in the direction of the valve from an auxiliary thread supply, which can also be part of the thread nozzle.
  • the auxiliary thread can either be moved or fixed when the rollers of the delivery roller pair are at a standstill.
  • the thread nozzle comprises at least one cutting unit, with the aid of which the auxiliary thread can be severed.
  • the cutting unit is preferably arranged in the transport path of the auxiliary thread between the delivery roller pair and the valve. If an auxiliary thread is cut, a first section extends between the delivery rollers, while the end of the second section of the auxiliary thread is created between the valve and the cutting unit.
  • the service unit is characterized in that it has a thread nozzle according to the previous and / or following description.
  • a spinning or winding machine for producing or rewinding a yarn can have a thread nozzle according to the previous and / or following description.
  • the thread nozzle can be assigned to one or more work stations and is preferably stationary at one Frame or other holding arrangement of the spinning or winding machine attached. Alternatively, it is part of a service unit.
  • the spinning machine is preferably a rotor spinning or air-jet spinning machine known from the prior art.
  • a winding machine is a textile machine also known from the prior art, with the aid of which a thread is rewound from a delivery bobbin (e.g. from a ring spinning machine) onto a tube, with existing thread defects being removed.
  • FIGS. 1 to 5 generally show a work station 1 of a spinning or winding machine. Only the sections or components that are important for understanding the invention are shown. Of course, the work station 1 has further elements, such as a holder (not shown) for the in Figure 5 sleeve 25 shown and a corresponding sleeve drive. Also, not all of the figures are in Figure 1 Sections shown, such as the compressed air inlet 16 of the valve 15 of the thread nozzle 3 already described above, even if they are actually present.
  • FIG. 1 shows that the machine can also be a winding machine in which a thread 20 coming from a delivery bobbin 19 is fed to an exclusively in Figure 5 sleeve 25 shown is rewound.
  • the thread end of the thread coming from the delivery spool 19 is in this case connected within the scope of the method with an auxiliary thread 2 coming from above within a splicing or knotting unit, which in this case forms the thread intake 7.
  • an auxiliary thread 2 is made available from an auxiliary thread supply 23 (e.g. an auxiliary thread bobbin).
  • the supply of auxiliary threads 23 can be part of the thread nozzle 3 described below or only assigned to it.
  • the auxiliary thread 2 is preferably delivered to a valve 15 of the thread nozzle 3 with the aid of a pair of delivery rollers 26 (which can also be part of the thread nozzle 3).
  • the auxiliary thread 2 can be sucked into the valve 15 by an air flow.
  • the air flow can arise in that a compressed air introduced into the valve 15 via a compressed air inlet 16 of the thread nozzle 3 leaves the thread nozzle 3 via a first opening 13.
  • the thread nozzle 3, the delivery roller pair 26, the auxiliary thread supply 23 and the cutting unit 12, which will be described below, can be part of a service unit 17 patrolling along several work stations 1. It is also conceivable that the elements mentioned are part of work station 1.
  • the auxiliary thread 2 is delivered from the thread nozzle 3 to a suction device 4 assigned to the work station 1, the suction device 4 preferably being part of the work station 1 and being arranged behind a housing 27 of the work station 1 or a cover.
  • the suction device 4 is connected to a source of negative pressure so that it exerts a suction effect on the auxiliary thread 2.
  • auxiliary thread 2 does not reach the suction 4 directly. Rather, the auxiliary thread 2 should first be sucked in by a suction section 11, which can be designed, for example, as a slot or other opening in the housing 27. Finally, behind the suction section 11, a flow connection, not shown in detail, extends to the suction device 4, so that the auxiliary thread 2 reaches the suction device 4 via the suction section 11.
  • the sections of the auxiliary thread 2 visible from the outside are also shown in the figures by a solid line, the sections not visible from the outside being dashed.
  • auxiliary thread 2 is deflected downward with the aid of a thread manipulator 22, the thread manipulator 22 being pivoted about a pivot axis for this purpose with the aid of a pivot bearing 24 ( Figure 2 ).
  • the thread manipulator 22 comprises a gripping section 21, for example in the form of an eyelet or a hook.
  • the gripping section 21 can already be in the in Figure 1 are in contact with the auxiliary thread 2 and holds it when the thread manipulator 22 is pivoted.
  • the thread manipulator 22 releases an inlet opening 28 by pivoting, so that the auxiliary thread 2 coming from the thread nozzle 3 is sucked in via the suction section 11, runs behind a housing 27 or some other cover and emerges from the inlet opening 28. It then runs over the gripping section 21, from there back into the inlet opening 28 and finally into the suction device 4.
  • the auxiliary thread 2 thus takes the in Figure 2 shown course.
  • the auxiliary thread 2 is severed in the area that was previously deflected.
  • the severing can be carried out by a device for thread end preparation, not shown, which can be located in the area of the thread receiving means 7.
  • the thread section 6 extending into the thread nozzle 3 is captured by the thread intake 7 of the work station 1, which is a rotor or air-jet spinning unit of a spinning machine or a Thread connection unit (splice or knot unit) of a winding or spinning machine can act.
  • the thread section 6 extending into the thread nozzle 3 runs between the thread nozzle 3 and the thread receiving means 7, as in FIG Figure 3 shown.
  • the valve 15 of the thread nozzle 3 is controlled in such a way that the air flowing in via the compressed air inlet 16 flows to the outside via a second opening 14 of the thread nozzle 3. Due to the Venturi principle, air is sucked in via the first opening 13 at the same time. As a result of the air flow, the thread section 9 coming from the thread intake 7 is discharged via the second opening 14 and reaches the active area of the suction section 11, which finally sucks the named thread section. After passing through the suction section 11, this thread section arrives in the suction device 4. The thread section 9 coming from the thread intake 7 is thus transferred to the suction device 4 of the work station 1.
  • FIG Figure 4 The resulting course of the thread section 9 coming from the thread acceptance 7 is shown in FIG Figure 4 shown, the thread acceptance 7 here already delivering new thread, which is either produced with the help of a rotor or air-jet spinning unit or by an in Figure 4 delivery reel 19, not shown, originates.
  • the thread section coming from the thread acceptance 7 is then shown 9 in the area between the suction section 11 and the first opening 13 and thus in the area of a sleeve 25 held up by the work station 1 with the aid of a catching arrangement 10.
  • the catch arrangement 10 can be, for example, one or more fangs of a sleeve plate holding the sleeve 25, or a plush brush of the sleeve 25.
  • the thread nozzle 3 can have a deflection element (not shown), with the aid of which the thread section 9 coming from the thread acceptance 7 can be deflected in the direction of the catching arrangement 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Claims (9)

  1. Procédé pour exploiter un poste de travail (1) d'une machine de filature ou de bobinage, comprenant les étapes de procédé suivantes :
    - fourniture d'un fil auxiliaire (2) à partir d'une buse de fil (3) à une unité d'aspiration (4) associée au poste de travail (1), le fil auxiliaire (2) étant ainsi tendu entre la buse de fil (3) et l'unité d'aspiration (4),
    - coupe du fil auxiliaire (2) de manière à ce qu'il se forme un segment de fil (5) faisant saillie dans l'unité d'aspiration (4) et un segment de fil (6) s'étendant dans la buse de fil (3), le segment de fil (5) faisant saillie dans l'unité d'aspiration (4) étant évacué à l'aide de l'unité d'aspiration (4),
    - saisie du segment de fil (6) s'étendant dans la buse de fil (3) par un récepteur de fil (7) du poste de travail (1), de préférence sous la forme d'une unité de fourniture de fil ou d'une unité de raccordement de fil, de sorte que le segment de fil (6) s'étendant dans la buse de fil (3) s'étende entre la buse de fil (3) et le récepteur de fil (7),
    - coupe du segment de fil (6) s'étendant dans la buse de fil (3), de sorte qu'il se forme un segment de fil (8) restant dans la buse de fil (3) et un segment de fil (9) provenant du récepteur de fil (7),
    - transfert du segment de fil (9) provenant du récepteur de fil (7) vers l'unité d'aspiration (4) du poste de travail (1),
    - saisie du segment de fil (9) provenant du récepteur de fil (7) à l'aide d'un dispositif de saisie (10) dans la zone d'un tube (25) mis à disposition par le poste de travail (1) et démarrage du processus de bobinage, sur le tube (25), du segment de fil (9) provenant du récepteur de fil (7).
  2. Procédé selon la revendication précédente, caractérisé en ce que la fourniture du fil auxiliaire (2) depuis la buse de fil (3) à l'unité d'aspiration (4) est effectuée au moyen d'un courant d'air comprimé généré par la buse de fil (3).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fil auxiliaire (2) est fourni par la buse de fil (3), est ensuite saisi par une section d'aspiration (11) du poste de travail (1) et entre dans l'unité d'aspiration (4) via la section d'aspiration (11).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le fil auxiliaire (2) est dévié dans la direction du récepteur de fil (7) au moyen d'un manipulateur de fil (22), de préférence pivotant, avant la coupe du fil auxiliaire (2).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la coupe du segment de fil (6) s'étendant dans la buse de fil (3) est effectuée au moyen d'une unité de coupe (12) de la buse de fil (3) à l'intérieur de la buse de fil (3).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le transfert du segment de fil (9) provenant du récepteur de fil (7) vers l'unité d'aspiration (4) du poste de travail (1) est effectué à l'aide de la buse de fil (3), le segment de fil (9) provenant du récepteur de fil (7) s'étend après le transfert du récepteur de fil (7) via la buse de fil (3) vers l'unité d'aspiration (4).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le segment de fil (9) provenant du récepteur de fil (7) entre dans la buse de fil (3) via une première ouverture (13) de la buse de fil (3) et sort de la buse de fil (3) via une deuxième ouverture (14) de la buse de fil (3), de sorte que le segment de fil (9) provenant du récepteur de fil (7) s'étend à travers la buse de fil (3).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que , après la coupe du segment de fil (6) s'étendant dans la buse de fil (3), le segment de fil (9) provenant du récepteur de fil (7) est rattaché dans le récepteur de fil (7) avec une matière fibreuse d'un ruban de fibres (18) fourni au récepteur de fil (7) ou avec un fil (20) provenant d'une bobine d'alimentation (19), avant que le segment de fil (9) provenant du récepteur de fil (7) ne soit transféré à l'unité d'aspiration (4) du poste de travail (1).
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la buse de fil (3) est un composant d'un groupe de service (17) monté de manière mobile le long d'une pluralité de postes de travail (1) de la machine de filature ou de bobinage et le fil auxiliaire (2) est fourni par le groupe de service (17).
EP18181068.0A 2017-07-19 2018-07-02 Procédé de fonctionnement d'un poste de travail d'un métier à filer ou d'un bobinoire et buse de fil Active EP3431427B1 (fr)

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DE102017116302.6A DE102017116302A1 (de) 2017-07-19 2017-07-19 Verfahren zum Betreiben einer Arbeitsstelle einer Spinn- oder Spulmaschine

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EP3431427B1 true EP3431427B1 (fr) 2021-04-07

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EP (1) EP3431427B1 (fr)
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EP3909896B1 (fr) * 2020-05-15 2023-10-11 Maschinenfabrik Rieter AG Dispositif de filage et procédé de rattachement d'un fil
CN117512866B (zh) * 2024-01-08 2024-03-26 汕头市致盛纺织科技有限公司 一种用于针织设备的寻纱供纱装置

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Publication number Publication date
DE102017116302A1 (de) 2019-01-24
CN109281008B (zh) 2022-04-01
US10829338B2 (en) 2020-11-10
EP3431427A1 (fr) 2019-01-23
CN109281008A (zh) 2019-01-29
US20190023522A1 (en) 2019-01-24

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