EP4151577A1 - Dispositif de pose de fil pour une unité de raccordement de fil d'une machine textile produisant des bobines croisées - Google Patents

Dispositif de pose de fil pour une unité de raccordement de fil d'une machine textile produisant des bobines croisées Download PDF

Info

Publication number
EP4151577A1
EP4151577A1 EP22195435.7A EP22195435A EP4151577A1 EP 4151577 A1 EP4151577 A1 EP 4151577A1 EP 22195435 A EP22195435 A EP 22195435A EP 4151577 A1 EP4151577 A1 EP 4151577A1
Authority
EP
European Patent Office
Prior art keywords
flap
gripper tube
thread
gripper
tube
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.)
Pending
Application number
EP22195435.7A
Other languages
German (de)
English (en)
Inventor
Jörg Perseke
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.)
Rieter Automatic Winder GmbH
Original Assignee
Rieter Automatic Winder GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rieter Automatic Winder GmbH filed Critical Rieter Automatic Winder GmbH
Publication of EP4151577A1 publication Critical patent/EP4151577A1/fr
Pending legal-status Critical Current

Links

Images

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
    • 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • a thread is transferred from a pay-off bobbin to a cross-wound bobbin.
  • Spinning cops produced on a ring spinning machine for example, can be used as the pay-off bobbin, the thread of which is rewound onto cross-wound bobbins for better further processing.
  • an automatic thread connection mechanism and, if necessary, an automatic cop change mechanism are activated.
  • a suction nozzle of the thread connection unit is placed on the surface of the winding package, which rotates slowly against the winding direction.
  • the suction nozzle pivots into its initial position, in which the suction nozzle opening is positioned below a splicing device, and thereby inserts the upper thread into a splicing device.
  • a gripper tube of the thread-laying device pivots from its starting position, in which it is arranged during normal winding operation, into a lower receiving position, where it picks up a thread tensioner or a thread Clamping device held, deducted from the bobbin lower thread.
  • the gripper tube then pivots into an upper transfer position and brings the lower thread with it.
  • the gripper tube swivels into its transfer position, the lower thread is positioned in the splicing device.
  • the gripper tube has a gripper tube flap at the end when the gripper tube is pivoted into the pick-up position, it is moved into its open position by means of a shift gate, in which the vacuum sucks the lower thread into the gripper tube.
  • the gripper tube flap is closed again and clamps the thread so that it can be safely transferred to the splicing device.
  • the gripper tube cuts the tensioning path of the upper thread with the thread transfer hook, takes this thread with it and positions it in the splicing device in a functional manner.
  • the gripper tube flap is opened so that the upper thread and lower thread are inserted taut in the splicing device.
  • the gripper tube is arranged in its starting position at a distance from the normal thread path. In this position, the gripper tube is at such a great distance from the running thread that, for example after a thread breaks, the falling thread should not wind itself around the gripper tube or the gripper tube flap, but rather falls past the gripper tube.
  • the thread often does not remain in its regular course, but can move uncontrollably due to the thread tension, which suddenly decreases. The distance from the regular yarn path therefore does not offer sufficient protection against entanglement of the rapier tube or the rapier tube flap.
  • the object of the invention is to provide a thread-laying device in which the probability of the thread being looped around the gripper tube or the gripper-tube flap is significantly reduced compared to the thread-laying devices known from the prior art.
  • the thread laying device according to the invention for a thread connecting unit has that Gripper tube with the gripper tube mouth acted upon by suction air, the gripper tube flap adjustable between the open position releasing the gripper tube mouth and the closed position closing the gripper tube mouth, and the thread laying hook arranged in the area of the gripper tube flap.
  • the thread laying device serves in the manner described above to arrange the lower thread from a position arranged below the splicing device for connection to an upper thread in a splicing device, with the positioning of the lower thread in the splicing device by pivoting the gripper tube of the thread laying hook the clamping path of the upper thread arranged in the splicing device and positions it functionally in the splicing device.
  • the thread laying hook is arranged in such a way that, in the closed position of the rapier tube flap, it projects beyond an outer surface of the rapier tube flap and, in the open position of the rapier tube flap, is arranged at least flush with the outer surface or set back with respect to it, so that the thread laying hook then does not protrude protrudes the outer surface of the gripper tube flap.
  • the thread transfer hook protrudes over the outer surface of the rapier flap and thus reliably ensures that when the rapier pipe is adjusted to the transfer position in which the rapier flap is closed, the upper thread is reliably pressed over the thread transfer hook into the splicing device.
  • the thread transfer hook harbors the risk of entangling the gripper tube flap, which can lead to disruptions in the textile machine.
  • the thread transfer hook is arranged at least flush with the outer surface or set back with respect to it in the open position of the gripper tube flap.
  • the gripper tube flap is then closed when leaving the lower receiving position, as a result of which the lower thread arranged in the gripper tube mouth is also mechanically secured to the gripper tube flap.
  • the thread laying hook returns to a position protruding over the outer surface, so that it then reliably presses the upper thread into the splicing device in the area of the transfer position.
  • the thread laying device thus reliably prevents faults due to looping of the gripper tube in the area of the gripper tube flap or existing looping as a result of interaction with the thread laying hook is automatically released after the looping, if the gripper tube flap is arranged in the open position, easily passes over the surface of the gripper tube flap can slip. At the same time, it is ensured that the upper thread is reliably positioned in the splicing device via the thread transfer hook.
  • the thread traversing device has a thread guide element which is arranged in the area of the rapier tube flap in such a way that it protrudes beyond the outer surface of the rapier tube flap in the closed position of the rapier tube flap and is arranged at least flush with the outer surface or set back in relation to it in the open position of the rapier tube flap is.
  • the thread guide element serves to insert the lower thread in the splicing device, in contrast to the cases of a “normal” thread breakage, namely when changing the cop.
  • a cop change an empty tube arranged on a arbor or a cop that cannot be unwound further without special preparation, it is transported away via a conveyor belt.
  • the circular magazine of a changing device is indexed so that one of the reserve bobbins is brought into the delivery position of the circular magazine and via an opening in the magazine floor, the bobbin slide and the Centering flap reaches the arbor pivoted in the receiving position.
  • the arbor then swivels back into the unwinding position with the new pay-off spool.
  • the thread end of the pay-off spool held in the central suction nozzle of the round magazine forms a lower thread strand, which is laid by an auxiliary gripper in the direction of a thread tensioner and held there.
  • the gripper tube is in its starting position, spaced apart from the regular thread path.
  • the gripper tube pivots into the upper transfer position, with the gripper tube mouth describing a circular path.
  • the gripper tube flap arranged in the area of the gripper tube mouth catches the lower thread with its thread guide element and moves it in the direction of the splicing device. Since the circular path also crosses the path of the upper thread, the upper thread is also grasped with the thread laying hook arranged on the gripper tube and also laid in the direction of the splicing device.
  • the thread transfer hook in the closed position of the gripper tube flap, usually protrudes from a front side of the gripper tube flap, whereas the thread guide element protrudes from a rear side of the outer surface.
  • the arrangement of the thread guide element such that it is at least flush with the outer surface or set back in relation to this when the rapier tube flap is in the open position ensures, if a thread guide element is used, that any entanglements that may form on this element when the rapier tube flap is opened are automatically wiped off via the outer surface can disengage after the wraps in the open position with the thread guide element. If the thread-laying device is configured with a thread-guiding element in addition to the thread-laying hook, faults due to undesired looping of the gripper tube flap are also reliably avoided and at the same time the area of use of the thread-laying device is increased.
  • the arrangement of the thread laying hook and/or the thread guide element in such a way that in the closed position they protrude over the outer surface of the gripper tube flap and in the open position are arranged at least flush or retracted in relation to it, so that entanglements are avoided or are automatically dissolved is basically free selectable.
  • the gripper tube flap is arranged on a flap support connected to the gripper tube so that it can pivot between the open position and the closed position, the flap support being connected to the thread laying hook and/or the thread guide element in such a way that these are in the closed position protrude through a slit-like passage opening on the gripper tube flap and are arranged retracted in the passage opening in the open position.
  • the thread laying hook and/or the thread guiding element are connected to the flap support or configured in one piece with it.
  • the thread laying hook and/or the thread guide element protrude through an adapted slot-like passage opening on the gripper tube flap and in the closed position protrude beyond the outer surface of the gripper tube flap.
  • the rapier flap is in turn pivotably connected to the flap carrier, whereby when the rapier flap is moved from the closed position to the open position, the thread laying hook and/or the thread guide element are adjusted relative to the slit-like passage opening, which extends in the pivoting direction of the rapier flap, such that these the open position are arranged in the slot-like passage opening in such a way that they no longer protrude beyond the outer surface of the gripper tube flap.
  • This embodiment of the invention ensures in a particularly reliable manner a flat outer surface of the gripper tube flap in the open position of the same, as a result of which loopings can reliably slide off over the gripper tube flap.
  • the use of a slit-like passage opening ensures in particular that the outer surface is formed free of projections that promote entanglements.
  • the gripper tube flap has a guide section lying against an outside of the flap carrier. According to this embodiment of the invention, it is provided that the gripper tube flap rests against a side of the flap carrier facing away from the gripper tube mouth, thereby ensuring a particularly reliable, trouble-free pivoting movement of the gripper tube flap between the open position and the closed position. A jamming of the gripper tube flap due to a tilting pivoting movement between the The open position and the closed position is thus prevented in a particularly reliable manner.
  • the gripper tube flap closes the gripper tube mouth and releases it in the open position, so that the lower thread can then be picked up in the pick-up position via a suction flow applied to the gripper tube mouth.
  • the gripper tube flap has a closure element that closes the gripper tube mouth in the closed position, which particularly preferably has a shape adapted to the gripper tube mouth, in particular as a plug arranged concentrically to the gripper tube mouth in the closed position.
  • a correspondingly adapted closure element ensures in a particularly reliable manner that the gripper tube mouth is closed in the closed position of the gripper tube flap, thereby interrupting the suction flow and at the same time ensuring reliable mechanical clamping of a lower thread arranged in the gripper tube mouth.
  • a corresponding configuration of the closure element it can be ensured in a particularly reliable manner that the gripper tube flap is closed under the effect of the prevailing negative pressure at the gripper tube mouth.
  • the gripper tube flap has a control cam that can be brought into engagement with a control link.
  • the control cam is used to reliably open the gripper tube flap in the area of the pick-up position and the upper transfer position, for which purpose the control cam engages with corresponding links arranged on the textile machine and, in cooperation with the links, causes a pivoting movement of the gripper tube flap causes.
  • Separate opening devices for adjusting the gripper tube flap can thus be dispensed with, with a reliable movement of the gripper tube flap between the open position and the closed position in the pick-up position and transfer position being able to be ensured via the control cam and the corresponding design of the links.
  • the flap support has a clamping element for detachably fastening the flap support on the gripping tube.
  • the use of the clamping element for example a clamping ring coaxially enclosing the gripper tube in the area of the gripper tube mouth enables simple and reliable assembly of the gripper tube flap, which is pivotably connected to the flap carrier, on the gripper tube.
  • the position of the gripper tube flap can be aligned in a particularly precise manner with respect to the gripper tube mouth via the clamping element.
  • the use of a clamping element enables the gripper tube flap to be easily replaced in the event of damage.
  • the gripper tube flap has a flat and/or convex outer surface. According to this embodiment of the invention, it is provided that the outer surface of the gripper tube flap does not have a depression that promotes an entanglement. A flat and/or convex outer surface promotes a good sliding of wraps in a special way.
  • a front side of the gripper tube flap, over which the thread laying hook protrudes in the closed position, and a rear side of the gripper tube flap, over which the optional thread guide element protrudes in the closed position, are connected to one another via an arcuate section of the outer surface, with an inner angle has an angle >90° between the front side and the back side of the gripper tube flap, as a result of which entanglements are avoided in a particularly reliable manner.
  • a thread laying device 18 for a thread connection unit (not shown here) of a textile machine that produces cross-wound bobbins is shown in a perspective view.
  • the yarn laying unit 18 has an angled gripper tube 1 which can be pivotally connected via a hollow gripper tube shaft 7 to a suction air source on the textile machine.
  • the gripper tube 1 has a gripper tube flap 2, which is between a in the Figures 1 to 3 shown closed position and in the Figures 4 to 6 shown open position is pivotally mounted on a connected to the gripper tube 1 flap carrier 5.
  • the gripper tube flap 2 closes a gripper tube mouth 8 of the gripper tube 1
  • the gripper tube flap 2 releases the gripper tube mouth 8 .
  • a bolt 6 is used, which forms the pivot axis of the gripper tube flap 2 and extends through opposite bolt receptacles 10a, 10b of the gripper tube flap 2 and is fastened to the flap carrier 5 in a bolt receptacle 9 (cf. Figure 7 to 9 ).
  • annular clamping body 11 is used, which is connected via screws 17 to the flap carrier 5 and encloses the gripper tube 1 coaxially in the assembled position.
  • a thread laying hook 3 and a thread guide element 4 protrude through a slit-shaped passage opening 13 on the gripper tube flap 2, so that they protrude over an outer surface 19 of the gripper tube flap 2.
  • the thread laying hook 3 protrudes over a front side 21 and the thread guide element 4 beyond a rear side 22 of the gripper tube flap 2 .
  • a control cam 16 engages in the region of a lower receiving position and an upper transfer position of the gripper tube 1 with a control link on the textile machine (not shown here) and causes the gripper tube flap 2 to pivot into the den Figures 4 to 6 shown open position in which the gripper tube mouth 8 is released.
  • the gripper tube flap 2 is moved into the open position, the thread-laying hook 3 and the thread-guiding element 4 are relatively displaced within the slit-shaped passage opening 13 into a position in which they are retracted from the outer surface 19, i.e. no longer over the front 21 or rear 22 to preside Possibly existing wraps, which abut the thread transfer hook 3 and/or the thread guide element 4 , are stripped off over the outer surface 19 of the gripper tube flap 2 .
  • a closure element 12 adapted to the gripper tube mouth 8 is arranged on an inside of the gripper tube flap 2 on a closure element carrier 15, which is arranged concentrically to the gripper tube mouth 8 in the closed position.
  • the closure element 12 is held on the gripper tube flap 2 by a screw (not shown here) which can be screwed into the closure element carrier 15 and which extends through a bore 14 on the front side 21 of the gripper tube flap 2 .
  • the underside of the gripper tube flap 2 bears against an outer side 20 of the flap carrier 5 so that a reliable pivoting movement about the pivot axis formed by the bolt 6 is ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP22195435.7A 2021-09-15 2022-09-13 Dispositif de pose de fil pour une unité de raccordement de fil d'une machine textile produisant des bobines croisées Pending EP4151577A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021123885.4A DE102021123885A1 (de) 2021-09-15 2021-09-15 Fadenverlegungsvorrichtung für eine Fadenverbindungseinheit einer Kreuzspulen herstellenden Textilmaschine

Publications (1)

Publication Number Publication Date
EP4151577A1 true EP4151577A1 (fr) 2023-03-22

Family

ID=83318897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22195435.7A Pending EP4151577A1 (fr) 2021-09-15 2022-09-13 Dispositif de pose de fil pour une unité de raccordement de fil d'une machine textile produisant des bobines croisées

Country Status (3)

Country Link
EP (1) EP4151577A1 (fr)
CN (1) CN115807280A (fr)
DE (1) DE102021123885A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691300A1 (fr) * 1994-07-07 1996-01-10 W. SCHLAFHORST AG & CO. Dispositif pour relier des fils pour machines textiles fabriquant des paquets à spires croisées
EP1076028A2 (fr) * 1999-08-13 2001-02-14 W. SCHLAFHORST AG & CO. Dispositif de rattachement du fil pour une machine textile fabriquant des bobines à spires croisées
DE102015010844A1 (de) * 2015-08-19 2017-02-23 Saurer Germany Gmbh & Co. Kg Verfahren zum Verbinden eines Ober- und eines Unterfadens an einer Spulstelle einer Spulmaschine und Spulstelle einer Spulmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510171A1 (de) 1994-07-07 1996-01-25 Schlafhorst & Co W Fadenverbindungsvorrichtung für Kreuzspulen herstellende Textilmaschinen
DE102018105933A1 (de) 2018-03-14 2019-09-19 Maschinenfabrik Rieter Ag Verfahren zum Bilden einer Fadenschlaufe und zum Separieren eines anzusetzenden Fadenstücks und eines abzuführenden Fadenstücks, Druckrollereinheit sowie Saugdüse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691300A1 (fr) * 1994-07-07 1996-01-10 W. SCHLAFHORST AG & CO. Dispositif pour relier des fils pour machines textiles fabriquant des paquets à spires croisées
EP1076028A2 (fr) * 1999-08-13 2001-02-14 W. SCHLAFHORST AG & CO. Dispositif de rattachement du fil pour une machine textile fabriquant des bobines à spires croisées
DE102015010844A1 (de) * 2015-08-19 2017-02-23 Saurer Germany Gmbh & Co. Kg Verfahren zum Verbinden eines Ober- und eines Unterfadens an einer Spulstelle einer Spulmaschine und Spulstelle einer Spulmaschine

Also Published As

Publication number Publication date
CN115807280A (zh) 2023-03-17
DE102021123885A1 (de) 2023-03-16

Similar Documents

Publication Publication Date Title
EP0691300B1 (fr) Dispositif pour relier des fils pour machines textiles fabriquant des paquets à spires croisées
DE4420979B4 (de) Fadenendevorbereitungseinrichtung für Kreuzspulen herstellende Textilmaschinen
DE2939644C2 (de) Verfahren und Vorrichtung zur Beseitigung einer Unregelmäßigkeit am laufenden Faden an einer Offenend-Spinnstelle während des Spinnens
DE923415C (de) Verfahren und Vorrichtung zum Zufuehren von miteinander zu verbindenden Fadenenden zu einem Geraet zum Verbinden der Faden-enden an Spulmaschinen
DE102012016854A1 (de) Verfahren zum Verbinden eines Ober- und Unterfadens an einer Arbeitsstelle einer Spulmaschine und Arbeitsstelle einer Spulmaschine
DE2312609A1 (de) Verfahren und vorrichtung zum auswechseln einer vollen kreuzspule gegen eine leere huelse
EP1076028B1 (fr) Dispositif de rattachement du fil pour une machine textile fabriquant des bobines à spires croisées
EP1544147A2 (fr) Dispositif pneumatique pour le raccordement de fils textiles
DE102015010844A1 (de) Verfahren zum Verbinden eines Ober- und eines Unterfadens an einer Spulstelle einer Spulmaschine und Spulstelle einer Spulmaschine
DE2018368A1 (de) Schnell-Spulmaschine
DE2543986A1 (de) Verfahren und vorrichtung zur sicherung einer reservewicklung auf einer spulenhuelse
DE19510171A1 (de) Fadenverbindungsvorrichtung für Kreuzspulen herstellende Textilmaschinen
DE2408382A1 (de) Aufwickelvorrichtung zur herstellung von zylinderfoermigen fadenkoerpern in textilmaschinen
DE102008057321A1 (de) Arbeitsstelle einer Spulmaschine mit einem saugluftbeaufschlagten Greiferrohr
DE3819873A1 (de) Spulautomat mit einem automatischen spulenabnehmer und verfahren zum ansetzen eines fadens an eine spulenhuelse
DE102017124729A1 (de) Fadenspleißvorrichtung
DE10150590A1 (de) Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
EP4151577A1 (fr) Dispositif de pose de fil pour une unité de raccordement de fil d'une machine textile produisant des bobines croisées
DE4034769A1 (de) Fadenleitvorrichtung an einer spulstelle
DE10007950A1 (de) Vorrichtung zur Inbetriebnahme einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
DE102008050070A1 (de) Vorrichtung zur automatischen Inbetriebnahme einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
DE102008013108A1 (de) Arbeitsstelle eines Kreuzspulautomaten
DE102017129580A1 (de) Rotationsspleißer für eine Arbeitsstelle auf einer Kreuzspulen herstellenden Textilmaschine
DE2802205C2 (de) Vorrichtung zur Aufnahme und spannungslosen Wiederabgabe einer einzigen vorgegebenen Länge eines Fadens o.dgl
CH685622A5 (de) Spulenhülsenaufnahmevorrichtung.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230920

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RIETER AUTOMATIC WINDER GMBH

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR