EP0310697B1 - Hollow cop changing apparatus for a loom - Google Patents

Hollow cop changing apparatus for a loom Download PDF

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Publication number
EP0310697B1
EP0310697B1 EP87114719A EP87114719A EP0310697B1 EP 0310697 B1 EP0310697 B1 EP 0310697B1 EP 87114719 A EP87114719 A EP 87114719A EP 87114719 A EP87114719 A EP 87114719A EP 0310697 B1 EP0310697 B1 EP 0310697B1
Authority
EP
European Patent Office
Prior art keywords
cop
shuttle
thread
hollow
means according
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.)
Expired - Lifetime
Application number
EP87114719A
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German (de)
French (fr)
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EP0310697A1 (en
Inventor
Friedrich Wilhelm Bassing
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.)
Juergens Maschinenbau & Co KG GmbH
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Juergens Maschinenbau & Co KG 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
Priority to AT87114719T priority Critical patent/ATE70573T1/en
Application filed by Juergens Maschinenbau & Co KG GmbH filed Critical Juergens Maschinenbau & Co KG GmbH
Priority to EP87114719A priority patent/EP0310697B1/en
Priority to DE8787114719T priority patent/DE3775400D1/en
Priority to ES198787114719T priority patent/ES2028020T3/en
Priority to JP63254683A priority patent/JPH01124653A/en
Priority to US07/255,647 priority patent/US4934415A/en
Publication of EP0310697A1 publication Critical patent/EP0310697A1/en
Application granted granted Critical
Publication of EP0310697B1 publication Critical patent/EP0310697B1/en
Priority to GR91401971T priority patent/GR3003450T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D45/00Looms with automatic weft replenishment
    • D03D45/20Changing bobbins, cops, or other shuttle stock

Definitions

  • the invention relates to a hose cop exchange device for a weaving machine with a cop magazine arranged above the drawer with a cop exit opening lying just above the trough space of the shooter that is open at the top, a cop ejection device for removing the rest of the cop from the shooter, and a cop press-in device for pressing in a new hose cop from the cop magazine into the trough space of the shooter, a cutting device for separating the weft thread from the cop remnant to be ejected and control devices for actuating the above-mentioned devices in a time-coordinated manner, the cop magazine for accommodating hose copings in the same direction, each with a cop end designed for external triggering and one in the other cop end from Kopsgarn fixed part of the neck is designed with a coaxially protruding from the hose cop mounting pin and the shooter near one end of the trough Room attached clamping device for aligned fixing of the mounting pin of a hose cop and a thread insertion slot from the
  • Such a device is known from the USA 2 000 969, in which an associated thread brake, which is preloaded with the weaving thread, is stored in a cop magazine for each hose cop.
  • the cop injection device consisting of a swivel arm is relatively space-consuming, since the swivel arm ensures an approximately rectilinear press-in movement on a long swivel arm, i.e. within a large swivel radius.
  • hose copes designed for internal withdrawal and consisting entirely of cop yarn are pressed through the cop injector into the trough space of a weaver who is equipped with bristle strips or similar holding devices interacting with the outer surface of the hose cop.
  • the rest of the cops are ejected from the shooter by one over the Rifle box swivel-mounted ejector arm, which with its hook-shaped end tears the rest of the cops held in the distal end of the shooter out of the trough space and throws it into a collecting basket set up next to the loom.
  • a weft bobbin exchange device for interchangeable looms in which a weft bobbin from a bobbin magazine is hammered into a machine clip provided in the shooter by means of a hammer with a mounting pin.
  • Such weft bobbins can only be used for a limited length for weaving reasons and, because of their bobbin core, can only take up a significantly smaller amount of weft threads compared to tube cops.
  • weft insertion the weaving machine has to be switched off and a part of the last inserted weft thread has to be pulled out and cut through the upper compartment, whereupon the filled shooter is pushed in by about 1 to 2 cm through the upper compartment and transported by hand into the shooter box, so that the weft ends are slightly overlapping. Since this process is repeated every 1 to 2 minutes, in addition to the physical exertion for the weaver, there is also a considerable downtime of the weaving machine, so that it can only be operated with an efficiency of 50 to 60%.
  • the object of the invention is to create, based on US Pat. No. 2,000,969, a hose cop exchange device which in a simple manner enables reliable automatic cop change and largely trouble-free hose cop weaving with a higher efficiency of the weaving machine.
  • the hose cop replacement device of the type mentioned is equipped with the features of claim 1.
  • the hose cop exchange device shown in FIGS. 1 to 5 for a wide weaving machine with riser change working with several shooters has a cop magazine 3 arranged above the sley 1, which by means of a pressure medium cylinder 11 and an angular lever pivotally connected to it about a on the upper cross member 5 of the Weaving machine arranged, horizontal pivot axis 4 between a cop press-in position shown in solid lines in Fig. 1 and a rest position shown in dashed lines is pivotable.
  • the cop magazine has four storage shafts 6 running parallel in its upper part for accommodating a plurality of hose copings 7 of the type shown in FIG. 7 in the same direction.
  • the storage shafts 6 each have a thread slot 10 arranged in the end wall facing away from the fabric edge 62.
  • the thread ends 52 of the hose clips 7 are each guided through the thread slot 10 of their storage shaft 6 to a suction pipe (not shown).
  • the lower section of the storage shafts 6 is angled inwards and there is in each case provided with a locking flap 8 which is movable between a blocking position and an opening position permitting the passage of a hose cop 7.
  • a cop press-in device with a pressure-actuated press-in cylinder 13 and a cop press-in punch 12 is also provided between the two inner storage shafts 6. which is displaceable between a rest position shown in FIG.
  • the shooter 2 is moved from the shooter box, not shown, by means of the correspondingly controllable impact cylinder with a low ejection speed into the bobbin exchange position shown in FIG of the sley 1, the positioning element 15 which is arranged so that it can be swiveled up (which is shown in the rest position swiveled down in FIG. 2) is stopped and is fixed by a positioning element which can be swiveled up about a pivot axis 17 at the other end of the shooter in the sley 1.
  • On the sley 1 there is also a hold-down device 18 shown in FIG. 3 which can be pivoted about a horizontal pivot axis 19 and which can be moved by a pressure medium cylinder 20 into the position shown in FIG. 3 and laterally pressing against the shooter.
  • the shuttle 1 shown in FIG. 6 has a clamping device 38 attached near one end of the trough space 37, which is recessed on the upper side, with two resilient clamping jaws 39, each opposite an associated side wall of the shuttle 2, for exchangeably pressing in the mounting pin 45 of a hose cop 7 shown in FIG. 7 .
  • a thread insertion slot 40 extending from the trough space 37 in its longitudinal direction in a straight line to the end of the shuttle is recessed down over the central axis of the shuttle 2.
  • a laterally branching, conventional threading device 42 is also connected.
  • a thread brake 41 aligned with the thread insertion slot 40 and of the type described in more detail in the applicant's parallel European patent application of the same filing date described in the same application.
  • the hose cop 7 shown in FIGS. 6 and 7 has a conical end 47 of the cone which is designed for the external take-off and an end which is in the other cop end 48 through the cop yarn firmly attached attachment part 43 with a yarn-wrapped attachment cone 44 with oppositely conically inclined ring steps and a coaxially outwardly projecting mounting pin 45, which in the embodiment shown is provided with four slotted locking rings 46 each clamped in ring grooves of the mounting pin 45.
  • the hose cop 7 is also tightly enclosed at least up to the end of its yarn winding enclosing the attachment part 43 with a shrink-on jacket 49 made of plastic shrink film.
  • a reinforcement strip 50 containing embedded reinforcement threads 51 can also be glued onto the jacket casing 49 in the axial direction.
  • the thread 52 to be drawn off from the conical outer surface of the cop end 47 through a central opening of the jacket sleeve 49 is inserted into the thread insertion slot 40 and the thread brake 41 when the cop is changed.
  • a thread insertion device 21 which is connected to the cop press die 12 for a common lowering movement and which has a thread gripper 22 arranged close to the end wall of the cop magazine 3 containing the thread slot 10 and a horizontally displaceable relative to the latter has a second thread gripper 23, which is displaceable in the direction of the other thread gripper 22 by a pressure medium-operated thread tensioning cylinder 24, in order thereby to linearly unclamp the thread 52 of the hose cop to be pressed into the shuttle 2 to be pressed in by the two thread grippers 22 and 23.
  • a weft scissors 29 are provided, which are actuated by a scissor tappet 31 connected to the stop movement of the sley 1 only to cut off the last weft thread entered into the shed if this is normally done by opening a profile tube on the breast beam 61 Insertable scissor tappet 31 hits a stop plate 30 which can be displaced on the profile tube between a retracted rest position and a stop position which closes the passage opening for the scissor tappet 31. After the release by the thread gripper 28, the cut-off weft thread residue is sucked off via a thread suction pipe opening next to it.
  • a scraper ejection device which has a scraper ejector stamp 34 which is displaceably guided in an ejector bore 33 of the sley 1 and a pressure medium-operated ejector cylinder 35 which has the scraper ejector stamp 34 by a scraper 2 fixed in the scope replacement position by a scraper 2 fixed therein underside arranged through opening 36 extends against the mounting pin 45 of the rest of the cop clamped in the resilient clamping jaws 39 of the clamping device 38, so that the mounting pin 45 is ejected upwards out of the clamping jaws 39.
  • a bobbin residue removal device 56 is used, which can be moved between the receiving position shown in FIG. 3 and a release position by means of a pressure-actuated actuating cylinder 58.
  • a user in the receiving position against an upwardly projecting guide web of the sley 1 is used Positioning stop 59.
  • the thread scissors 53 which can be actuated by a pressure medium cylinder 54 and is shown in FIG.
  • the thread scissors 53 are pivoted into the section of the trough space 37 between the thread brake 41 and the end of the largely empty jacket cover 49 in order to cut off the residual thread running from the bobbin rest through the thread brake 41.
  • the thread insertion device 21 also becomes simultaneous with the plunger pressing plunger 12 with the thread 52 stretched tight in the thread grippers 22 and 23 after actuation of the thread tensioning cylinder 24 so that the thread gripper 22 dips between the thread brake 41 and the cop end 47 into the trough space 37 and the thread gripper 23 on the outside of the shooter end is moved as far down that the thread stretched out in a straight line between the thread grippers 22 and 23 is inserted into the thread insertion slot 40 and the slot of the thread brake 41 that is aligned with this in a straight line.
  • the thread brake described in the applicant's parallel European patent application from the same filing date is designed in such a way that the inserted thread can no longer be pulled out of it. In this way, a reliable insertion of the thread into the thread brake 41 and the thread insertion slot 40 is achieved simultaneously with the pressing in of the new hose cop 7.
  • the thread guided in the thread insertion slot 40 is automatically inserted into the threading device 42 during the subsequent shooter operation when the shooter movement direction is reversed.
  • the shooter 2 is pushed back into the shooter box by means of a pressure cylinder-actuated return cylinder 25, which is arranged horizontally on the underside of the cop magazine 3, and a return element 26 which can be displaced and cooperates with the shooter 2.
  • the individual storage shafts 6 of the cop magazine 3 are each loaded with different types of hose copes 7, which, in order to achieve an optimal weft thread capacity in narrow tolerances for the cop diameter, the cop length and the precisely measured, wound weft length were produced.
  • An electronic counter is assigned to each storage shaft 6, which works with a specific box cell of the riser box change via the weaving machine control.
  • the possible number of weft entries on the electronic counter resulting from the knowledge of the weft thread length wound on the hose cop 7 and the fabric width is set, so that this automatically triggers a hose cop change after execution of the number of weft entries set on the counter when the shooter at the embodiment shown flies from right to left in its box cell.
  • the weft thread entered by this shooter 2 into the shed is then picked up by the weft thread grippers 27 and 28 on the breast beam 61 and cut off by means of the weft scissors 29 at the store stop.
  • the scraper remnant removal device 56 is moved by means of the actuating cylinder 58 against a stop 59 into the receiving position shown in FIG. 3 and the thread scissors 53 are pivoted into the position shown in FIG. 4, which plunges into the trough space 37 of the shuttle 2.
  • the cop ejection punch 34 is then extended through the passage opening 36 against the mounting pin 45 of the cop rest remaining, which is clamped in the resilient clamping jaws 39 of the clamping device 38, and transfers it to the cop rest remover 57 lying directly above it 53 the remaining thread from the bobbin rest.
  • the thread scissors 53 and the bobbin removal device 56 are then moved back into their starting position, the picked up bobbin residue being dropped out of the bobbin residue gripper 57.
  • the cop magazine 3 is now pivoted about the pivot axis 4 against a stop 60 into the position shown in solid lines in FIG. 1, in which its cop outlet opening 9 lies precisely aligned over the upwardly open trough space 37 of the shuttle 2.
  • a hose cop is moved into the press-in chamber 14 from the storage shaft 6 containing the hose copes 7 for loading this web shooter 2 by actuating its locking flap 8 and this is then moved by actuating the press-in cylinder 13 by means of the Kopseinpreßstempels 12 through the Kopsausgangsö réelle 9 so pressed into the trough space 37 of the weaver 2 that the locking rings 46 of its mounting pin 45 snap between the two resilient clamping jaws 39 of the clamping device 38 and the sheath sleeve 49 closely surrounding the actual bobbin thread wrap without touching any other mounting devices aligned is freely supported in the trough space 37.
  • the thread 52 which is guided through the thread slot 10 of the respective storage shaft 6 to a suction tube (not shown) is simultaneously grasped by the thread grippers 22 and 23 of the thread insertion device 21 and is stretched out in a straight line by actuating the thread tensioning cylinder 24 with displacement of the thread gripper 23 and thereby through the into the trough space 37 between the thread brake 41 and the end of the sheath 49, the thread gripper 23 is inserted and the thread gripper 23, which is lowered outside the protective end, is automatically inserted into the thread insertion slot 40 and the thread brake 41.
  • the thread gripper 16 releases the Kopsfaden.
  • the positioning elements 15 and 16 and the hold-down device 18 are returned to their position in which the shooters 2 are released.
  • the weaver 2 is pushed back into his box cell by the return cylinder 25 attached to the cop magazine 3 and the return element 26 and positioned there by means of an additional brake.
  • the cop magazine 3 and the return cylinder 25 now pivot back into their rest position shown in dashed lines.
  • the operations described above are controlled by electronic control devices (PLC) with freely programmable control for the dobby, the riser change, the hydraulic impact devices, the goods take-off, the warp reduction and the various timed operations of the individual parts of the hose cop exchange device.
  • PLC electronic control devices
  • the control devices are advantageously designed so that the individual steps can also be operated manually and cyclically if necessary.
  • hose cap replacement device described above with reference to a preferred embodiment can be modified appropriately by the person skilled in the art in various ways depending on the requirements of the individual case, provided that hose clips with a head end designed for external triggering and a mounting pin integrated in the other head end are thus pressed into the web shooters by a press-in stamp are pressed in that at the same time a thread gripper sunk into the trough space of the shooter together with the Kopseinpreßstempel places the Kopsfaden in a straight thread insertion slot of the other shooter end.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

An apparatus for changing hollow cops on a loom possesses a cop magazine for hollow cops with one cop end designed for an external draw-off and with an extension part fixed firmly in the other cop end and having a coaxially projecting retaining pin, a clamping device mounted in the shuttle for fixing the retaining pin in alignment, a thread insertion slot extending in a straight line from the trough space to the other shuttle end, a cop ejector ram arranged in the batten and extendable into the shuttle through a passage orifice on the underside, a cop press-in ram for pressing the retaining pin of a hollow cop extracted from a cop magazine into the clamping device of the shuttle, and a thread insertion device lowerable together with the cop press-in ram and intended for introducing the new cop thread into the thread insertion slot of the shuttle. <IMAGE>

Description

Die Erfindung betrifft eine Schlauchkops-Auswechselvorrichung für eine Webmaschine mit einem oberhalb der Weblade angeordneten Kopsmagazin mit in einer Kopsauswechselstellung dicht über dem nach oben offenen Trograum des Webschützen liegender Kopsaustrittsöffnung, einer Kopsauswerfvorrichtung zum Entfernen des Kopsrestes aus dem Webschützen, einer Kopseinpreßvorrichtung zum Einpressen eines neuen Schlauchkops aus dem Kopsmagazin in den Trograum des Webschützen, einer Schneidvorrichtung zum Abtrennen des Schußfadens vom auszuwerfenden Kopsrest sowie Steuervorrichtungen zur zeitlich aufeinander abgestimmten Betätigung der vorgenannten Vorrichtungen, wobei das Kopsmagazin zur gleichgerichteten Aufnahme von Schlauchkopsen mit jeweils einem zum Außenabzug ausgelegten Kopsende und einem im anderen Kopsende vom Kopsgarn fest eingebundenem Ansatzteil mit einem aus dem Schlauchkops koaxial herausragenden Halterungszapfen ausgelegt ist und der Webschützen eine nahe einem Ende des Trograumes angebrachte Klemmvorrichtung zur ausgerichteten Festlegung des Halterungszapfens eines Schlauchkops sowie eine vom anderen Ende des Trograumes im wesentlichen geradlinig zum Schützenende verlaufenden Fadeneinführschlitz und eine Fadenbremse aufweist.The invention relates to a hose cop exchange device for a weaving machine with a cop magazine arranged above the drawer with a cop exit opening lying just above the trough space of the shooter that is open at the top, a cop ejection device for removing the rest of the cop from the shooter, and a cop press-in device for pressing in a new hose cop from the cop magazine into the trough space of the shooter, a cutting device for separating the weft thread from the cop remnant to be ejected and control devices for actuating the above-mentioned devices in a time-coordinated manner, the cop magazine for accommodating hose copings in the same direction, each with a cop end designed for external triggering and one in the other cop end from Kopsgarn fixed part of the neck is designed with a coaxially protruding from the hose cop mounting pin and the shooter near one end of the trough Room attached clamping device for aligned fixing of the mounting pin of a hose cop and a thread insertion slot from the other end of the trough space substantially straight to the protective end and a thread brake.

Eine derartige Vorrichtung ist aus der USA 2 000 969 bekannt, bei der zu jedem Schlauchkops eine zugeordnete und mit dem Webfaden vorgeladene Fadenbremse in einem Kopsmagazin bevorratet wird.Such a device is known from the USA 2 000 969, in which an associated thread brake, which is preloaded with the weaving thread, is stored in a cop magazine for each hose cop.

Beim Auswechseln wird der Schlauchkops gleichzeitig mit der durch den Webfaden verbundenen Fadenbremse mit einem Schwenkarm in den Webschütz eingepreßt. Die Bevorratung der Schlauchkops mit vorgeladener Fadenbremse im Kopsmagazin ist aufwendig, da die Magazinschächte zweigeteilt ausgeführt und die Fadenbremse in einem extra Arbeitsgang mit dem Webfaden des Schlauchkops vorgeladen werden müssen. Ferner ergeben sich daraus Handhabungsprobleme, die besonders beim Einpressen des Schlauchkops oder beim Nachfallen der bevorrateten Schlauchkopse nachteilig zu Störungen aufgrund der am Webfaden anhängenden Fadenbremse führen kann. Ferner ist die aus einem Schwenkarm bestehende Kopseinpreßvorrichtung relativ platzaufwendig, da der Schwenkarm zur Gewährleistung einer annähernd geradlinigen Einpreßbewegung an einem langen Schwenkarm, d.h. in einem großen Schwenkradius, geführt werden muß.When replacing the hose cop with the thread brake connected by the weaving thread with a swivel arm is pressed into the weaver. The stocking of the hose bobbin with a preloaded thread brake in the bobbin magazine is complex because the magazine bores are divided into two parts and the thread brake must be preloaded with the weaving thread of the hose bobbin in an extra step. This also results in handling problems which, particularly when the hose head is pressed in or when the stored hose head falls, can lead to malfunctions due to the thread brake attached to the weaving thread. Furthermore, the cop injection device consisting of a swivel arm is relatively space-consuming, since the swivel arm ensures an approximately rectilinear press-in movement on a long swivel arm, i.e. within a large swivel radius.

Bei einer aus der DE-B-15 33 676 bekannten Schlauchkops-Auswechselvorrichtung werden zum Innenabzug ausgelegte, vollständig aus Kopsgarn bestehende Schlauchkopse durch die Kopseinpreßvorrichtung in den Trograum eines Webschützen eingepreßt, der mit Borstenleisten oder ähnlichen mit der Außenfläche des Schlauchkopses zusammenwirkenden Halterungsvorrichtungen ausgestattet ist. Das Auswerfen des Kopsrestes aus dem Webschützen erfolgt durch einen über dem Schützenkasten verschwenkbar gelagerten Auswerferarm, der mit seinem hakenförmigen Ende den im kettfernen Schützenende gehalterten Kopsrest aus dem Trograum herausreißt und diesen in einen neben dem Webstuhl aufgestellten Fangkorb schleudert. Bei dieser vorbekannten Konstruktion kann aber wegen unvermeidlicher Toleranzen im Außendurchmesser sowie der Zusammendrückbarkeit und der Oberflächenrauhigkeit der verwendeten Schlauchkopse weder bei deren Einpressen in den Trograum des Webschützen ein genau reproduzierbarer Sitz erreicht, noch eine hinreichend sichere Festlegung gegen axiale und transversale Verlagerungen des Schlauchkopses im hin- und hergeschlagenen Webschützen erzielt werden. Wegen dieser Schwierigkeiten wurden Schlauchkopse bisher im wesentlichen nur zur Herstellung von weniger anspruchsvoller Textilerzeugnissen, wie Scheuertüchern, Matten oder groben Wolldecken verwendet. Zum Verarbeiten synthetischer Garne sind Schlauchkopse praktisch kaum verwendet worden.In a hose cop exchange device known from DE-B-15 33 676, hose copes designed for internal withdrawal and consisting entirely of cop yarn are pressed through the cop injector into the trough space of a weaver who is equipped with bristle strips or similar holding devices interacting with the outer surface of the hose cop. The rest of the cops are ejected from the shooter by one over the Rifle box swivel-mounted ejector arm, which with its hook-shaped end tears the rest of the cops held in the distal end of the shooter out of the trough space and throws it into a collecting basket set up next to the loom. With this known construction, however, due to the inevitable tolerances in the outside diameter and the compressibility and surface roughness of the hose copes used, neither a precisely reproducible fit can be achieved when they are pressed into the trough space of the shooter, nor a sufficiently secure fixing against axial and transverse displacements of the hose cop in and defeated weavers. Because of these difficulties, hose clips have so far been used essentially only for the production of less demanding textile products, such as abrasive cloths, mats or coarse woolen blankets. Hose clips have hardly been used to process synthetic yarns.

Aus der DE-B-15 35 424 ist ferner eine Schußspulen-Auswechselvorrichtung für Wechselwebstühle bekannt, bei welcher jeweils eine Schußspule aus einem Spulenmagazin mittels eines Einschlaghammers mit einem Halterungszapfen in eine im Webschützen vorgesehene Automatenklammer eingeschlagen wird. Derartige Schußspulen sind aber aus webtechnischen Gründen nur in begrenzter Länge verwendbar und können infolge ihres Spulenkerns nur eine im Vergleich zu Schlauchkopsen wesentlich geringere Schußfadenmenge aufnehmen. Da die in einem Webschützen jeweils mitführbare Schußfadenlänge insbesondere bei Breitwebmaschinen mit Arbeitsbreiten bis zu 30 m in sehr kurzer Zeit aufgebraucht ist, liegen die Wechselstellen im Gewebe vielfach so dicht beieinander, daß es erforderlich ist, die Punkte des Überlappens des Schußfadenendes der alten Schußspule und des Schußfadenanfangs der neuen Schußspule über die Gewebebreite zu verteilen. Zu diesem als Schußanlegen bezeichneten Vorgang muß die Webmaschine abgestellt und ein Teil des zuletzt eingetragenen Schußfadens durch das Oberfach herausgezogen und abgeschnitten werden, worauf der gefüllte Webschützen um etwa 1 bis 2 cm versetzt durch das Oberfach eingeschoben und von Hand in den Schützenkasten befördert wird, so daß die Schußfadenenden geringfügig überlappend zusammenliegen. Da sich dieser Vorgang alle 1 bis 2 Minuten wiederholt, ergibt sich außer der körperlichen Anstrengung für den Weber auch eine erhebliche Stillstandszeit der Webmaschine, so daß diese nur mit einem Wirkungsgrad von 50 bis 60% betrieben werden kann.From DE-B-15 35 424 a weft bobbin exchange device for interchangeable looms is also known, in which a weft bobbin from a bobbin magazine is hammered into a machine clip provided in the shooter by means of a hammer with a mounting pin. Such weft bobbins, however, can only be used for a limited length for weaving reasons and, because of their bobbin core, can only take up a significantly smaller amount of weft threads compared to tube cops. Since the length of the weft thread that can be carried in a shuttle is used up in a very short time, especially in wide weaving machines with working widths of up to 30 m, the change points in the fabric are often so close together that it is necessary to overlap the points of the weft end of the old weft bobbin and the Spread the weft beginning of the new weft over the fabric width. For this process, known as weft insertion, the weaving machine has to be switched off and a part of the last inserted weft thread has to be pulled out and cut through the upper compartment, whereupon the filled shooter is pushed in by about 1 to 2 cm through the upper compartment and transported by hand into the shooter box, so that the weft ends are slightly overlapping. Since this process is repeated every 1 to 2 minutes, in addition to the physical exertion for the weaver, there is also a considerable downtime of the weaving machine, so that it can only be operated with an efficiency of 50 to 60%.

Wegen der größeren Schußfadenlänge von Schlauchkopsen wurde zwaversucht, zur Herstellung endlos gewebter Papiermaschinenbespannungen zur Verlängerung der Laufzeit des Webschützen Schlauchkopse einzusetzen. Dies hat jedoch nicht zum Erfolg geführt, da sich unerwünschte Verlagerungen und ein vorzeitiges Auseinanderfallen des Schlauchkopses in dem mit hoher Geschwindigkeit hin- und hergeschlagenen Webschützen nicht zuverlässig verhindern ließen und die beim Abzug des Schußfadens vom Innenkegel des Schlauchkopses eintretende unkontrollierte Ballonbildung im Webschützen zusätzliche Störungen verursacht. Es gelang auch nicht, ein hinreichend zuverlässiges automatisches Auswechseln der Schlauchkopse im Webschützen zu erreichen.Because of the larger weft thread length of hose cops, attempts were made to use hose copes to produce endlessly woven paper machine clothing to extend the runner's runtime. However, this did not lead to success, since undesired displacements and a premature disintegration of the hose scope could not be reliably prevented in the shuttle, which was blown back and forth at high speed, and the uncontrolled balloon formation in the shuttle, which occurs when the weft thread was removed from the inner cone of the hose scope, caused additional disturbances . It was also not possible to achieve an adequately reliable automatic replacement of the hose heads in the shooter.

Aufgabe der Erfindung ist es, ausgehend von der US-A 2 000 969 eine Schlauchkops-Auswechselvorrichtung zu schaffen, die auf einfache Weise einem zuverlässigen automatischen Kopswechsel und ein weitgehend-störungfreies Schlauchkopsweben mit höherem Wirkungsgrad der Webmaschine ermöglicht.The object of the invention is to create, based on US Pat. No. 2,000,969, a hose cop exchange device which in a simple manner enables reliable automatic cop change and largely trouble-free hose cop weaving with a higher efficiency of the weaving machine.

Zur Lösung dieser Aufgabe ist die Schlauchkops-Auswechselvorrichtung der eingangs genannten Art mit den Merkmalen des Patentanspruchs 1 ausgestattet.To solve this problem, the hose cop replacement device of the type mentioned is equipped with the features of claim 1.

Durch die Verwendung eines Kopsmagazins für in der EP-A 0 310 696 beschriebene Schlauchkopse mit einem zum Außenabzug ausgelegten Kopsende und einer gleichzeitig mit dem Kopseinpreßstempel absenkbare Faden-Einführvorrichtung wird eine sehr zuverlässige Einbringung und Halterung des neuen Schlauchkopses und des zugehörigen Schußfadens in den zuvor durch den Kopsauswerfstempel ebenso zuverlässig vom Kopsrest befreiten Webschützen erzielt. Da alle mit der Kopsauswechslung verbundenen Arbeitsschritte durch eine elektronische Ablaufsteuerung selbsttätig vorgenommen werden, wird auch bei mehrschützigen Breitwebmaschinen mit beidseitigem Steigkastenwechsel und einem Vierfarben-Schlauchkopsmagazin ein wesentlich verbesserter Wirkungsgrad der Webmaschine erreicht.By using a cop magazine for hose copes described in EP-A 0 310 696 with an external trigger designed end of the cop and a thread insertion device which can be lowered simultaneously with the cop insert, a very reliable insertion and holding of the new hose cop and the associated weft thread is achieved in the weaving shooters who were also reliably freed from the rest of the cops by the cop ejecting stamp. Since all work steps associated with the bobbin replacement are carried out automatically by an electronic sequence control, a substantially improved efficiency of the loom is achieved even with multi-shield wide weaving machines with bilateral riser box change and a four-color tube bobbin magazine.

Vorteilhafte weitere Ausgestaltungen der Schlauchkops-Auswechselvorrichtung sind in den Unteransprüchen beschrieben.Advantageous further refinements of the hose cop exchange device are described in the subclaims.

Im folgenden wird eine bevorzugte Ausführungsform der Schlauchkops-Auswechselvorrichtung unter Bezugnahme auf die beigefügten Zeichnungen weiter erläutert. Es zeigen:

Fig. 1
einen schematischen Teilquerschnitt durch die Weblade, das Kopsmagazin und zugehörige Vorrichtungen einer Webmaschine,
Fig. 2
eine teilweise weggebrochene Seitenansicht der Weblade, des Kopsmagazins und des in der Kopsauswechselstellung gehaltenen Webschützen der Webmaschine gemäß Fig. 1,
Fig. 3
eine teilweise geschnittene Seitenansicht der Kopsauswerfvorrichtung,
Fig. 4
eine teilweise geschnittene Ansicht einer in den Webschützen eingesenkten Schneidvorrichtung,
Fig. 5
eine schematische Ansicht eines Schußfadengreifers mit
Fig. 6
eine schematische Aufsicht auf einen zugehörigen Webschützen mit eingesetztem Schlauchkops und
Fig. 7
eine schematische perspektivische Ansicht eines Schlauchkopses.
In the following, a preferred embodiment of the hose cop exchange device is further explained with reference to the accompanying drawings. Show it:
Fig. 1
2 shows a schematic partial cross section through the weaving drawer, the cop magazine and associated devices of a weaving machine,
Fig. 2
2 shows a partially broken-away side view of the weaving drawer, the cop magazine and the weaver of the weaving machine according to FIG. 1 held in the cop replacing position,
Fig. 3
a partially sectioned side view of the cop ejection device,
Fig. 4
FIG. 2 shows a partially sectioned view of a cutting device sunk into the shuttle,
Fig. 5
a schematic view of a weft gripper
Fig. 6
a schematic plan view of an associated shooter with an inserted hose scope and
Fig. 7
a schematic perspective view of a hose scope.

Die in den Figuren 1 bis 5 dargestellte Schlauchkops-Auswechselvorrichtung für eine mit mehreren Schützen arbeitende Breitwebmaschine mit Steigkastenwechsel weist ein oberhalb der Weblade 1 angeordnetes Kopsmagazin 3 auf, das durch einen Druckmittelzylinder 11 und einen mit diesem schwenkbar verbundenen Winkelhebel um eine an der Obertraverse 5 der Webmaschine angeordnete, horizontale Schwenkachse 4 zwischen einer in Fig. 1 in ausgezogenen Linien dargestellten Kopseinpreßstellung und einer gestrichelt dargestellten Ruhestellung verschwenkbar ist. Das Kopsmagazin weist vier in ihrem oberen Teil parallel verlaufende Speicherschächte 6 zur gleichgerichteten Aufnahme einer Vielzahl von Schlauchkopsen 7 der in Fig. 7 dargestellten Art auf. Die Speicherschächte 6 besitzen jeweils einen in der von der Gewebekante 62 abgewandten Endwand angeordneten Fadenschlitz 10. Die Fadenenden 52 der Schlauchkopse 7 sind jeweils durch den Fadenschlitz 10 ihres Speicherschachts 6 zu einem nicht dargestellten Saugrohr geführt. Die Speicherschächte 6 sind in ihrem unteren Abschnitt schräg einwärts abgewinkelt und dort jeweils mit einer zwischen einer Sperrstellung und einer den Durchtritt eines Schlauchkopses 7 zulassenden Öffnungsstellung beweglichen Sperrklappe 8 versehen. Zwischen den Austrittsenden der Speicherschächte 6 und deren Sperrklappen 8 liegt eine zentrale Einpreßkammer 14 mit einer an der Unterseite des Kopsmagazins angeordneten Kopsaustrittsöffnung 9. Im Kopsmagazin 3 ist ferner zwischen den beiden inneren Speicherschächten 6 eine Kopseinpreßvorrichtung mit einem druckmittelbetätigten Einpreßzylinder 13 und einem Kopseinpreßstempel 12 vorgesehen, der zwischen einer in Fig. 1 dargestellten Ruhestellung und einer abwärts ausgefahrenen Einpreßstellung verschiebbar ist und dabei einen zuvor über eine geöffnete Sperrklappe 8 in die Einpreßkammer 14 eingebrachten, in der Kopsaustrittsöffnung 9 liegenden Schlauchkops 7 in den Trograum 37 des in der Kopsauswechselstellung dicht darunterliegenden Webschützen 2 einpreßt.The hose cop exchange device shown in FIGS. 1 to 5 for a wide weaving machine with riser change working with several shooters has a cop magazine 3 arranged above the sley 1, which by means of a pressure medium cylinder 11 and an angular lever pivotally connected to it about a on the upper cross member 5 of the Weaving machine arranged, horizontal pivot axis 4 between a cop press-in position shown in solid lines in Fig. 1 and a rest position shown in dashed lines is pivotable. The cop magazine has four storage shafts 6 running parallel in its upper part for accommodating a plurality of hose copings 7 of the type shown in FIG. 7 in the same direction. The storage shafts 6 each have a thread slot 10 arranged in the end wall facing away from the fabric edge 62. The thread ends 52 of the hose clips 7 are each guided through the thread slot 10 of their storage shaft 6 to a suction pipe (not shown). The lower section of the storage shafts 6 is angled inwards and there is in each case provided with a locking flap 8 which is movable between a blocking position and an opening position permitting the passage of a hose cop 7. Between the outlet ends of the storage shafts 6 and their locking flaps 8 there is a central press-in chamber 14 with a cop exit opening 9 arranged on the underside of the cop magazine. In the cop magazine 3, a cop press-in device with a pressure-actuated press-in cylinder 13 and a cop press-in punch 12 is also provided between the two inner storage shafts 6. which is displaceable between a rest position shown in FIG. 1 and a downward extended press-in position and thereby a hose cop 7, previously inserted into the press-in chamber 14 via an open locking flap 8 and lying in the cop exit opening 9, into the trough space 37 of the weaving shooter 2 lying closely underneath in the cop replacing position presses in.

Da der Kopswechsel bei der dargestellten Webmaschine mit Steigkastenwechsel nicht im Schützenkasten selbst vorgenommen werden kann, wird der Webschützen 2 aus dem nicht dargestellten Schützenkasten mittels des entsprechend steuerbaren Schlagzylinders mit geringer Ausstoßgeschwindigkeit in die in Fig. 2 dargestellte Kopsauswechselstelllung bewegt, in welcher er durch ein in der Weblade 1 hochschwenkbar angeordnetes Positionierelement 15 (das in Fig. 2 heruntergeschwenkten Ruhestellung dargestellt ist) angehalten und durch ein am anderen Schützenende in der Weblade 1 um eine Schwenkachse 17 hochschwenkbares Positionierelement festgelegt wird. An der Weblade 1 ist ferner ein in Fig. 3 dargestellter, um eine horizontale Schwenkachse 19 verschwenkbarer Niederhalter 18 vorgesehen, der durch einen Druckmittelzylinder 20 in die in Fig. 3 dargestellte, seitlich gegen den Webschützen andrückende Stellung beweglich ist.Since the bobbin change in the loom shown with a change of the riser box cannot be carried out in the shooter box itself, the shooter 2 is moved from the shooter box, not shown, by means of the correspondingly controllable impact cylinder with a low ejection speed into the bobbin exchange position shown in FIG of the sley 1, the positioning element 15 which is arranged so that it can be swiveled up (which is shown in the rest position swiveled down in FIG. 2) is stopped and is fixed by a positioning element which can be swiveled up about a pivot axis 17 at the other end of the shooter in the sley 1. On the sley 1 there is also a hold-down device 18 shown in FIG. 3 which can be pivoted about a horizontal pivot axis 19 and which can be moved by a pressure medium cylinder 20 into the position shown in FIG. 3 and laterally pressing against the shooter.

Der in Fig. 6 dargestellte Webschützen 2 weist eine nahe einem Ende des oberseitig eingetieften Trograumes 37 angebrachte Klemmvorrichtung 38 mit zwei jeweils einer zugeordneten Seitenwand des Webschützen 2 gegenüberliegenden, federnden Klemmbakken 39 zum auswechselbaren Eindrücken des Halterungszapfens 45 eines in Fig. 7 dargestellten Schlauchkopses 7 auf. Am anderen Ende des Webschützens 2 ist ein vom Trograum 37 in dessen Längsrichtung geradlinig bis zum Schützenende durchgehender Fadeneinführschlitz 40 bis über die Mittelachse des Webschützen 2 eingetieft. Mit diesem Fadeneinführschlitz 40 ist ferner eine seitlich abzweigende, herkömmliche Einfädelvorrichtung 42 verbunden. An dem von der Klemmvorrichtung 38 entfernten Ende des Trograumes 37 ist ferner eine auf den Fadeneinführschlitz 40 fluchtend ausgerichtete Fadenbremse 41 der in der einen Webschützen betreffenden parallelen europäischen Patentanmeldung der Anmelderin vom gleichen Anmeldetag näher beschriebenen Art angeordnet.The shuttle 1 shown in FIG. 6 has a clamping device 38 attached near one end of the trough space 37, which is recessed on the upper side, with two resilient clamping jaws 39, each opposite an associated side wall of the shuttle 2, for exchangeably pressing in the mounting pin 45 of a hose cop 7 shown in FIG. 7 . At the other end of the shuttle 2, a thread insertion slot 40 extending from the trough space 37 in its longitudinal direction in a straight line to the end of the shuttle is recessed down over the central axis of the shuttle 2. With this thread insertion slot 40, a laterally branching, conventional threading device 42 is also connected. At the end of the trough space 37 remote from the clamping device 38 there is also a thread brake 41 aligned with the thread insertion slot 40 and of the type described in more detail in the applicant's parallel European patent application of the same filing date described in the same application.

Der in Figuren 6 und 7 dargestellte Schlauchkops 7 weist ein zum Außenabzug ausgelegtes konisches Kopsende 47 und ein in das andere Kopsende 48 durch das Kopsgarn fest eingebundenes Ansatzteil 43 mit einem garnumwickelten Ansatzkonus 44 mit entgegengesetzt konisch geneigten Ringstufen und einem koaxial auswärts vorstehenden Halterungszapfen 45 auf, der bei der dargestellten Ausführungsform mit vier jeweils in Ringnuten des Halterungszapfens 45 eingespannten, geschlitzten Rastringen 46 versehen ist. Der Schlauchkops 7 ist ferner mindestens bis zum Ende seiner das Ansatzteil 43 umschließenden Garnbewicklung mit einer aufgeschrumpften Mantelhülle 49 aus Kunststoff-Schrumpffolie eng anliegend umschlossen. Auf die Mantelhülle 49 kann ferner zur Erhöhung der Eigensteifigkeit ein eingebettete Verstärkungsfäden 51 enthaltender Verstärkungsstreifen 50 in axialer Richtung aufgeklebt sein. Der von der konischen Außenfläche des Kopsendes 47 durch eine zentrische Öffnung der Mantelhülle 49 abzuziehende Faden 52 wird beim Kopswechsel in den Fadeneinführschlitz 40 und die Fadenbremse 41 eingelegt.The hose cop 7 shown in FIGS. 6 and 7 has a conical end 47 of the cone which is designed for the external take-off and an end which is in the other cop end 48 through the cop yarn firmly attached attachment part 43 with a yarn-wrapped attachment cone 44 with oppositely conically inclined ring steps and a coaxially outwardly projecting mounting pin 45, which in the embodiment shown is provided with four slotted locking rings 46 each clamped in ring grooves of the mounting pin 45. The hose cop 7 is also tightly enclosed at least up to the end of its yarn winding enclosing the attachment part 43 with a shrink-on jacket 49 made of plastic shrink film. In order to increase the inherent rigidity, a reinforcement strip 50 containing embedded reinforcement threads 51 can also be glued onto the jacket casing 49 in the axial direction. The thread 52 to be drawn off from the conical outer surface of the cop end 47 through a central opening of the jacket sleeve 49 is inserted into the thread insertion slot 40 and the thread brake 41 when the cop is changed.

An der von der Gewebekante 62 abgewandten Seite des Kopsmagazins 3 ist ferner eine mit dem Kopseinpreßstempel 12 zu gemeinsamer Absenkbewegung verbundene Fadeneinführvorrichtung 21 angeordnet, die einen dicht an der den Fadenschlitz 10 enthaltenden Endwand des Kopsmagazins 3 angeordneten Fadengreifer 22 und einen relativ zu diesem begrenzt horizontal verschiebbaren zweiten Fadengreifer 23 aufweist, der durch einen druckmittelbetätigten Fadenspannzylinder 24 in Richtung vom anderen Fadengreifer 22 fort verschiebbar ist, um dadurch den von beiden Fadengreifern 22 und 23 erfaßten Faden 52 des in den Webschützen 2 einzupressenden Schlauchkopses geradlinig auszuspannen.On the side of the cop magazine 3 facing away from the fabric edge 62 there is also a thread insertion device 21 which is connected to the cop press die 12 for a common lowering movement and which has a thread gripper 22 arranged close to the end wall of the cop magazine 3 containing the thread slot 10 and a horizontally displaceable relative to the latter has a second thread gripper 23, which is displaceable in the direction of the other thread gripper 22 by a pressure medium-operated thread tensioning cylinder 24, in order thereby to linearly unclamp the thread 52 of the hose cop to be pressed into the shuttle 2 to be pressed in by the two thread grippers 22 and 23.

Wie Fig. 1 erkennen läßt, ist an einem mit dem Brustbaum 61 verbundenen Profilrohr ferner zwischen der Gewebekante 62 und dem Kopsmagazin 3 ein erster Schußfadengreifer 27 sowie ein in Fig. 5 dargestellter zweiter Schußfadengreifer 28 angebracht, der in Fig. 1 weggelassen ist und von der Gewebekante 62 her gesehen hinter dem Kopsmagazin 3 befestigt ist. An der Weblade 1 ist ferner in deren zwischen den Schußfadengreifern 27 und 28 liegendem Bereich eine Schußfadenschere 29 vorgesehen, die durch einen mit dieser verbundenen Scherenstößel 31 bei der Anschlagbewegung der Weblade 1 jeweils nur dann zum Abtrennen des zuletzt in das Webfach eingetragenen Schußfadens betätigt wird, wenn der normalerweise durch eine Öffnung eines Profilrohres am Brustbaum 61 einschiebbare Scherenstößel 31 auf eine am Profilrohr zwischen einer zurückgezogenen Ruhestellung und einer die Durchtrittsöffnung für den Scherenstößel 31 verschließenden Anschlagstellung verschiebbare Anschlagplatte 30 auftrifft. Der abgeschnittene Schußfadenrest wird nach der Freigabe durch den Fadengreifer 28 über ein neben diesem mündendes Fadensaugrohr abgesaugt.As can be seen in FIG. 1, a first weft thread gripper 27 and a second weft thread gripper 28 shown in FIG. 5, which is omitted in FIG. 1 and is attached to a profile tube connected to the breast beam 61, is also attached between the fabric edge 62 and the cop magazine 3 the fabric edge 62 is seen behind the Kopsmagazin 3 attached. At the sley 1 is also in between the weft grippers 27 and 28 lying area, a weft scissors 29 are provided, which are actuated by a scissor tappet 31 connected to the stop movement of the sley 1 only to cut off the last weft thread entered into the shed if this is normally done by opening a profile tube on the breast beam 61 Insertable scissor tappet 31 hits a stop plate 30 which can be displaced on the profile tube between a retracted rest position and a stop position which closes the passage opening for the scissor tappet 31. After the release by the thread gripper 28, the cut-off weft thread residue is sucked off via a thread suction pipe opening next to it.

Zum Entfernen des weitgehend abgelaufenen Kopsrestes aus dem Webschützen 2 ist eine Kopsauswerfvorrichtung vorgesehen, die einen in einer Auswerferbohrung 33 der Weblade 1 verschiebbar geführten Kopsauswerferstempel 34 und einen druckmittelbetätigten Auswerferzylinder 35 aufweist, der den Kopsauswerferstempel 34 bei in der Kopsauswechselstellung festgelegtem Webschützen 2 durch eine in diesem unterseitig angeordnete Durchgangsöffnung 36 gegen den in den federnden Klemmbacken 39 der Klemmvorrichtung 38 eingespannten Halterungszapfen 45 des Kopsrestes ausfährt, so daß der Halterungszapfen 45 aus den Klemmbacken 39 aufwärts ausgestoßen wird. Zum Abführen des Kopsrestes dient eine Kopsrest-Abführvorrichtung 56, die mittels eines druckmittelbetätigten Stellzylinders 58 zwischen der in Fig. 3 dargestellten Aufnahmestellung und einer Freigabestellung beweglich ist. Der Halterungszapfen 45, des durch den Kopsauswerfstempel 34 aus den Klemmbacken 39 des Webschützens 2 ausgestoßenen Kopsrestes gelangt in den in der Aufnahmestellung direkt darüberliegend angeordneten Kopsrestgreifer 57 und wird dann mit diesem durch Betätigung des Stellzylinders 58 in die Freigabestellung bewegt und dort in einen Auffangbehälter fallengelassen. Zur genauen Ausrichtung des Kopsrestgreifers 57 relativ zum Webschützen 2 dient ein sich in der Aufnahmestellung gegen einen aufwärts vorstehenden Führungssteg der Weblade 1 anlegender Positionieranschlag 59.To remove the largely expired scraper from the shooter 2, a scraper ejection device is provided which has a scraper ejector stamp 34 which is displaceably guided in an ejector bore 33 of the sley 1 and a pressure medium-operated ejector cylinder 35 which has the scraper ejector stamp 34 by a scraper 2 fixed in the scope replacement position by a scraper 2 fixed therein underside arranged through opening 36 extends against the mounting pin 45 of the rest of the cop clamped in the resilient clamping jaws 39 of the clamping device 38, so that the mounting pin 45 is ejected upwards out of the clamping jaws 39. To remove the bobbin residue, a bobbin residue removal device 56 is used, which can be moved between the receiving position shown in FIG. 3 and a release position by means of a pressure-actuated actuating cylinder 58. The mounting pin 45, of the scraper remnant ejected from the clamping jaws 39 of the weaver 2 by the scraper ejector 34, arrives in the scraper remnant gripper 57 arranged directly above it in the receiving position and is then moved with this by actuating the actuating cylinder 58 into the release position and dropped there into a collecting container. For the exact alignment of the residual scraper 57 relative to the weaver 2, a user in the receiving position against an upwardly projecting guide web of the sley 1 is used Positioning stop 59.

An der Kopsrestabführvorrichtung 56 ist ferner die in Fig. 4 dargestellte, durch einen Druckmittelzylinder 54 betätigbare Fadenschere 53 um eine horizontale Schwenkachse 55 verschwenkbar angelenkt. Die Fadenschere 53 wird in den Abschnitt des Trograumes 37 zwischen der Fadenbremse 41 und dem Ende der weitgehend leeren Mantelhülle 49 eingeschwenkt, um dort den vom Kopsrest durch die Fadenbremse 41 verlaufenden Restfaden abzuschneiden.The thread scissors 53, which can be actuated by a pressure medium cylinder 54 and is shown in FIG. The thread scissors 53 are pivoted into the section of the trough space 37 between the thread brake 41 and the end of the largely empty jacket cover 49 in order to cut off the residual thread running from the bobbin rest through the thread brake 41.

Wenn nun der neue Schlauchkops 7 durch den abwärtsbewegten Kopseinpreßstempel 12 in den leeren Trograum 37 des Webschützen 2 so eingedrückt wird, daß die Rastringe 46 seines Halterungszapfens 45 in die federnden Klemmbacken 39 der Klemmvorrichtung 38 einschnappen, wird gleichzeitig mit dem Kopseinpreßstempel 12 auch die Fadeneinführvorrichtung 21 mit dem in den Fadengreifern 22 und 23 nach Betätigung des Fadenspannzylinders 24 straff ausgespannten Faden 52 so abgesenkt, daß der Fadengreifer 22 zwischen der Fadenbremse 41 und dem Kopsende 47 in den Trograum 37 eintaucht und der Fadengreifer 23 an der Außenseite des Schützenendes soweit abwärts bewegt wird, daß der zwischen den Fadengreifern 22 und 23 geradlinig ausgespannte Faden dabei in den Fadeneinführschlitz 40 und den mit dieser geradlinig fluchtenden Schlitz der Fadenbremse 41 eingeführt wird. Die in der einen Webschützen betreffenden parallelen europäischen Patentanmeldung der Anmelderin vom gleichen Anmeldetag beschriebene Fadenbremse ist so ausgelegt, daß der eingelegte Faden aus dieser nicht mehr nach oben herausgezogen werden kann. Auf diese Weise wird gleichzeitig mit dem Einpressen des neuen Schlauchkopses 7 ein zuverlässiges Einführen des Fadens in die Fadenbremse 41 und den Fadeneinführschlitz 40 erreicht. Der im Fadeneinführschlitz 40 geführte Faden legt sich beim nachfolgenden Schützenschlagbetrieb bei der Umkehr der Schützen-Bewegungsrichtung selbsttätig in die Einfädelvorrichtung 42 ein.If the new hose cop 7 is pressed into the empty trough space 37 of the shooter 2 by the downward moving plunger punch 12 in such a way that the locking rings 46 of its mounting pin 45 snap into the resilient clamping jaws 39 of the clamping device 38, the thread insertion device 21 also becomes simultaneous with the plunger pressing plunger 12 with the thread 52 stretched tight in the thread grippers 22 and 23 after actuation of the thread tensioning cylinder 24 so that the thread gripper 22 dips between the thread brake 41 and the cop end 47 into the trough space 37 and the thread gripper 23 on the outside of the shooter end is moved as far down that the thread stretched out in a straight line between the thread grippers 22 and 23 is inserted into the thread insertion slot 40 and the slot of the thread brake 41 that is aligned with this in a straight line. The thread brake described in the applicant's parallel European patent application from the same filing date is designed in such a way that the inserted thread can no longer be pulled out of it. In this way, a reliable insertion of the thread into the thread brake 41 and the thread insertion slot 40 is achieved simultaneously with the pressing in of the new hose cop 7. The thread guided in the thread insertion slot 40 is automatically inserted into the threading device 42 during the subsequent shooter operation when the shooter movement direction is reversed.

Nach Beendigung der Kopsauswechslung wird der Webschützen 2 mittels eines an der Unterseite des Kopsmmagazins 3 horizontal angeordneten, druckmittelbetätigten Rückführzylinders 25 und eines durch diesen verschiebbaren, mit dem Webschützen 2 zusammenwirkenden Rückführelements 26 in den Schützenkasten zurückgestoßen.After the cop replacement has been completed, the shooter 2 is pushed back into the shooter box by means of a pressure cylinder-actuated return cylinder 25, which is arranged horizontally on the underside of the cop magazine 3, and a return element 26 which can be displaced and cooperates with the shooter 2.

Zum Betrieb der vorstehend beschriebenen Schlauchkops-Auswechselvorrichtung für eine Mehrschützen-Breitwebmaschine mit Steigfachwechsel und Vierfarben-Schlauchkopsverarbeitung werden zunächst die einzelnen Speicherschächte 6 des Kopsmagazins 3 jeweils mit Schlauchkopsen 7 zugeordneter verschiedener Art beschickt, die zur Erzielung einer optimalen Schußfadenkapazität in engen Toleranzen für den Kopsdurchmesser, die Kopslänge und die genau bemessene, aufgewickelte Schußfadenlänge hergestellt wurden. Jedem Speicherschacht 6 ist dabei ein elektronisches Zählwerk zugeordnet, das mit einer bestimmten Kastenzelle des Steigkastenwechsels über die Webmaschinensteuerung zusammenarbeitet. Danach wird die sich aus der Kenntnis der auf dem Schlauchkops 7 aufgewickelten Schußfadenlänge und der Gewebebreite rechnerisch ergebende mögliche Anzahl der Schußeinträge am elektronischen Zählwerk eingestellt, so daß dieses nach Ausführung der am Zählwerk eingestellten Anzahl von Schußeinträgen selbsttätig einen Schlauchkopswechsel auslöst, wenn der Webschützen bei der dargestellten Ausführungsform von rechts nach links in seine Kastenzelle fliegt. Beim folgenden Ladenvorlauf wird dann der von diesem Webschützen 2 in das Webfach eingetragene Schußfaden von den Schußfadengreifern 27 und 28 am Brustbaum 61 erfaßt und beim Ladenanschlag mittels der Schußfadenschere 29 abgeschnitten. Die Einleitung des eigentlichen Kopswechsels wird nun solange in Bereitschaft gehalten, bis der Webschützen 2 mit dem weitgehend leeren Kopsrest wieder zur Ladenbahn heruntgergewechselt wird und zum Schützenabschlag von links nach rechts bereitsteht. In dieser Stellung wird durch die Steuervorrichtungen der Schützenabschlag ausgesetzt und die Weblade 1 in ihrer hinteren Ladenstellung bei voll geöffnetem Webfach abgestellt. Nach Hochschwenken des Positionierelements 15 wird dann der Webschützen 2 mittels des nicht dargestellten Schlagzylinders mit gesteuerter, langsamer Geschwindigkeit in die in Fig. 2 dargestellte Kopsauswechselstellung bewegt und in dieser durch Hochschwenken des anderen Positionierelements 16 axial festgelegt. Gleichzeitig wird der Niederhalter 18 durch Betätigung des Schwenkzylinders 20 um die Schwenkachse 19 in die in Fig. 3 dargestellte Stellung verschwenkt, so daß der Webschützen 2 zuverlässig in einer für den Kopswechsel optimalen Stellung festgelegt ist.In order to operate the above-described hose cop exchange device for a multi-shooter wide weaving machine with a change of riser and four-color hose cop processing, the individual storage shafts 6 of the cop magazine 3 are each loaded with different types of hose copes 7, which, in order to achieve an optimal weft thread capacity in narrow tolerances for the cop diameter, the cop length and the precisely measured, wound weft length were produced. An electronic counter is assigned to each storage shaft 6, which works with a specific box cell of the riser box change via the weaving machine control. Thereafter, the possible number of weft entries on the electronic counter resulting from the knowledge of the weft thread length wound on the hose cop 7 and the fabric width is set, so that this automatically triggers a hose cop change after execution of the number of weft entries set on the counter when the shooter at the embodiment shown flies from right to left in its box cell. During the subsequent store advance, the weft thread entered by this shooter 2 into the shed is then picked up by the weft thread grippers 27 and 28 on the breast beam 61 and cut off by means of the weft scissors 29 at the store stop. The initiation of the actual bobbin change is now kept on standby until the weaver 2 with the largely empty bobble remnant is switched back down to the loading track and is ready to shoot from left to right. In this position, the shooter is suspended by the control devices and the sley 1 in its rear position fully opened shed. After swiveling up the positioning element 15, the shuttle 2 is then moved by means of the striking cylinder, not shown, at a controlled, slow speed into the cop replacing position shown in FIG. At the same time, the hold-down device 18 is pivoted about the pivot axis 19 into the position shown in FIG. 3 by actuating the pivot cylinder 20, so that the weaver 2 is reliably fixed in a position which is optimal for changing the cop.

In dieser Stellung wird die Kopsrestabführvorrichtung 56 mittels des Stellzylinders 58 gegen einen Anschlag 59 in die in Fig. 3 dargestellte Aufnahmestellung bewegt und die Fadenschere 53 in die in Fig. 4 dargestellte, in den Trograum 37 des Webschützen 2 eintauchende Stellung verschwenkt. Durch Betätigung des Auswerfzylinders 35 wird dann der Kopsauswerfstempel 34 durch die Durchgangsöffnung 36 gegen den in den federnden Klemmbacken 39 der Klemmvorrichtung 38 eingespannten Halterungszapfen 45 des Kopsrestes ausgefahren und überführt diesen in den unmittelbar darüberliegenden Kopsrestgreifer 57. In der oberen Endlage des Kopsauswerfstempels 34 schneidet die Fadenschere 53 den Restfaden vom Kopsrest ab. Die Fadenschere 53 und die Kopsrestabführvorrichtung 56 werden dann in ihre Ausgangsstellung zurückbewegt, wobei der aufgenommene Kopsrest aus dem Kopsrestgreifer 57 fallengelassen wird.In this position, the scraper remnant removal device 56 is moved by means of the actuating cylinder 58 against a stop 59 into the receiving position shown in FIG. 3 and the thread scissors 53 are pivoted into the position shown in FIG. 4, which plunges into the trough space 37 of the shuttle 2. By actuating the ejection cylinder 35, the cop ejection punch 34 is then extended through the passage opening 36 against the mounting pin 45 of the cop rest remaining, which is clamped in the resilient clamping jaws 39 of the clamping device 38, and transfers it to the cop rest remover 57 lying directly above it 53 the remaining thread from the bobbin rest. The thread scissors 53 and the bobbin removal device 56 are then moved back into their starting position, the picked up bobbin residue being dropped out of the bobbin residue gripper 57.

Zum Einpressen eines neuen Schlauchkopses 7 wird nun das Kopsmagazin 3 um die Schwenkachse 4 gegen einen Anschlag 60 in die in Fig. 1 ausgezogen dargestellte Stellung verschwenkt, in welcher seine Kopsaustrittsöffnung 9 genau ausgerichtet über dem nach oben offenen Trograum 37 des Webschützen 2 liegt. Nun wird aus dem die Schlauchkopse 7 zur Beschickung dieses Webschützen 2 enthaltenden Speicherschacht 6 durch Betätigung seiner Sperrklappe 8 ein Schlauchkops in die Einpreßkammer 14 bewegt und dieser dann durch Betätigung des Einpreßzylinders 13 mittels des Kopseinpreßstempels 12 durch die Kopsaustrittsöffnung 9 so in den Trograum 37 des Webschützens 2 eingepreßt, daß die Rastringe 46 seines Halterungszapfens 45 zwischen die beiden federnden Klemmbacken 39 der Klemmvorrichtung 38 einschnappen und die den eigentlichen Kopsgarnwickel eng umschließende Mantelhülle 49 ohne Berührung mit sonstigen Halterungsvorrichtungen genau ausgerichtet frei im Trograum 37 gehaltert ist. Der durch den Fadenschlitz 10 des jeweiligen Speicherschachts 6 zu einem nicht dargestellten Saugrohr geführte Faden 52 wird gleichzeitig von den Fadengreifern 22 und 23 der Fadeneinführvorrichtung 21 erfaßt und durch Betätigung des Fadenspannzylinders 24 unter Verschiebung des Fadengreifers 23 geradlinig ausgespannt und dabei durch den in den Trograum 37 zwischen der Fadenbremse 41 und dem Ende der Mantelhülle 49 eintauchenden Fadengreifer 23 und den außerhalb des Schützenendes abgesenkten Fadengreifer 23 selbsttätig in den Fadeneinführschlitz 40 und die Fadenbremse 41 eingelegt. Wenn der Kopseinpreßstempel 12 und die Fadeneinführvorrichtung 21 aufwärts in ihre Ruhelage zurückkehren, gibt der Fadengreifer 16 den Kopsfaden frei.To press in a new hose cop 7, the cop magazine 3 is now pivoted about the pivot axis 4 against a stop 60 into the position shown in solid lines in FIG. 1, in which its cop outlet opening 9 lies precisely aligned over the upwardly open trough space 37 of the shuttle 2. Now a hose cop is moved into the press-in chamber 14 from the storage shaft 6 containing the hose copes 7 for loading this web shooter 2 by actuating its locking flap 8 and this is then moved by actuating the press-in cylinder 13 by means of the Kopseinpreßstempels 12 through the Kopsausgangsöffnung 9 so pressed into the trough space 37 of the weaver 2 that the locking rings 46 of its mounting pin 45 snap between the two resilient clamping jaws 39 of the clamping device 38 and the sheath sleeve 49 closely surrounding the actual bobbin thread wrap without touching any other mounting devices aligned is freely supported in the trough space 37. The thread 52 which is guided through the thread slot 10 of the respective storage shaft 6 to a suction tube (not shown) is simultaneously grasped by the thread grippers 22 and 23 of the thread insertion device 21 and is stretched out in a straight line by actuating the thread tensioning cylinder 24 with displacement of the thread gripper 23 and thereby through the into the trough space 37 between the thread brake 41 and the end of the sheath 49, the thread gripper 23 is inserted and the thread gripper 23, which is lowered outside the protective end, is automatically inserted into the thread insertion slot 40 and the thread brake 41. When the Kopseinpreßstempel 12 and the thread insertion device 21 return up to their rest position, the thread gripper 16 releases the Kopsfaden.

Entweder in dieser Stellung oder schon vor dem Einpressen des Schlauchkopses werden die Positionierelemente 15 und 16 und der Niederhalter 18 in ihre den Webschützen 2 freigebende Stellung zurückgeführt.Either in this position or even before the hose cop is pressed in, the positioning elements 15 and 16 and the hold-down device 18 are returned to their position in which the shooters 2 are released.

Nachdem somit der Kopswechsel beendet ist, wird der Webschützen 2 durch den am Kopsmagazin 3 befestigten Rückführzylinder 25 und das Rückführelement 26 in seine Kastenzelle zurückgestoßen und dort mittels einer Zusatzbremse positioniert. Das Kopsmagazin 3 und der Rückführzylinder 25 schwenken nun in ihre gestrichelt dargestellte Ruhestellung zurück.After the change of the cop is finished, the weaver 2 is pushed back into his box cell by the return cylinder 25 attached to the cop magazine 3 and the return element 26 and positioned there by means of an additional brake. The cop magazine 3 and the return cylinder 25 now pivot back into their rest position shown in dashed lines.

Nunmehr erfolgt zunächst ein Einzelschlag des Webschützen 2 von links nach rechts und das elektronische Zählwerk wird automatisch auf Null zurückgestellt. Nach Ablauf der Schützenflugzeit schaltet sich die Webmaschine automatisch zum Weiterbetrieb ein. Beim nächsten Vorlauf der Weblade 1 erfolgt nun das Abschneiden des neuen Schußfadens durch die Schußfadenschere 29. Die Schußfadengreifer 27 und 28 und der Fadengreifer 23 geben nun die Fäden frei, die dann mittels des Fadenabsaugrohres 32 abgesaugt werden.Now a single hit by the shooter 2 takes place from left to right and the electronic counter is automatically reset to zero. After the shooter flight time has expired, the weaving machine automatically switches to continued operation a. At the next advance of the sley 1, the new weft is now cut by the weft scissors 29. The weft grippers 27 and 28 and the thread gripper 23 now release the threads, which are then sucked off by means of the thread suction pipe 32.

Die vorstehend beschriebenen Arbeitsgänge werden durch elektronische Steuervorrichtungen (SPS) mit frei programmierbarer Steuerung für die Schaftmaschine, den Steigkastenwechsel, die hydraulischen Schlageinrichtungen, den Warenabzug, den Kettnachlaß und die verschiedenen in ihrem zeitlichen Ablauf geregelten Betätigungen der Einzelteile der Schlauchkops-Auswechselvorrichtung gesteuert. Die Steuervorrichtungen sind dabei vorteilhaft so ausgelegt, daß die einzelnen Arbeitsschritte bei Bedarf auch manuell und taktweise betätigt werden können.The operations described above are controlled by electronic control devices (PLC) with freely programmable control for the dobby, the riser change, the hydraulic impact devices, the goods take-off, the warp reduction and the various timed operations of the individual parts of the hose cop exchange device. The control devices are advantageously designed so that the individual steps can also be operated manually and cyclically if necessary.

Die vorstehend an Hand einer bevorzugten Ausführungsform beschriebene Schlauchkops-Auswechselvorrichtung kann vom Fachmann je nach den Anforderungen des Einzelfalles in verschiedener Weise zweckentsprechend abgewandelt werden, sofern dabei Schlauchkopse mit einem zum Außenabzug ausgelegten Kopsende und einem im anderen Kopsende eingebundenen Halterungszapfen durch einen Einpreßstempel so in den Webschützen eingepreßt werden, daß gleichzeitig ein zusammen mit dem Kopseinpreßstempel in den Trograum des Webschützens eingesenkter Fadengreifer den Kopsfaden in einen geradlinigen Fadeneinführschlitz des anderen Schützenendes einlegt.The hose cap replacement device described above with reference to a preferred embodiment can be modified appropriately by the person skilled in the art in various ways depending on the requirements of the individual case, provided that hose clips with a head end designed for external triggering and a mounting pin integrated in the other head end are thus pressed into the web shooters by a press-in stamp are pressed in that at the same time a thread gripper sunk into the trough space of the shooter together with the Kopseinpreßstempel places the Kopsfaden in a straight thread insertion slot of the other shooter end.

Claims (19)

  1. A means for changing the hollow cop on a loom, comprising a cop magazine disposed above the sley and formed with a cop outlet opening which, in the cop changing position, lies close above the upwardly open trough space in the shuttle, a cop ejector for removing the remains of the cop from the shuttle, a cop pressing-in device for pressing a new hollow cop from the magazine into the trough space in the shuttle, a cutting device for cutting the weft thread from the remains of the cop to be ejected, and control devices for synchronised actuation of the aforementioned devices, the cop magazine, for the purpose of unidirectional reception of hollow cops, being equipped with a respective cop end designed for external take-off and an attachment part permanently tied into the other end of the cop yarn and comprising a retaining pin projecting coaxially from the hollow cop, and the shuttle has a clamping device disposed near one end of the trough space for aligned attachment of the pin retaining a hollow cop, and also has a thread brake and a thread insertion slot extending from the other end of the trough space and substantially straight towards the shuttle end, characterised in that
    a) a cop ejecting ram (34) which, when the shuttle (2) is in the cop change position, is extendable upwards through an opening (36) in the underside of the shuttle against a retaining pin (45) clamped in the clamping device (38), is guided in the sley (1),
    b) the cop pressing-in device comprises a cop pressing-in ram (12) which, when the shuttle (2) is in the cop-changing position, is extendable downwards against a hollow cop (7) aligned ready for pressing in at the cop outlet opening (9) of the cop magazine (3), so as to press the pin (45) retaining the hollow cop (7) into the clamping device (38) of the shuttle (2) and
    c) a thread insertion device (21) which, in the cop-changing position of the shuttle (2) is disposed above the thread insertion slot (40) and is lowerable simultaneously with the cop pressing-in ram (12), is provided with at least one thread gripper (22, 23) by means of which the thread (52) guided out of a slot (10) of the cop magazine (3) and belonging to the hollow cop (7) to be pressed in is lowered and introduced into the thread insertion slot (40) and the thread brake (41) of the shuttle (2).
  2. A hollow-cop changing means, according to claim 1, characterised in that the thread insertion device (21) comprises a first thread gripper (10) adapted to be lowered into the upwardly open trough space (37) of the shuttle (2), a second thread gripper (17) movable relative to the first gripper substantially in the longitudinal direction of the shuttle (2) and lowerable outside the shuttle end, and a thread tensioning cylinder (18) for stretching the thread (52) for insertion and aligning it with the thread insertion slot (40) of the shuttle (2).
  3. A hollow cop changing means according to claim 1 or 2, characterised in that the thread insertion means (21) is connected to the cop pressing-in ram (12) so as to descend together with it.
  4. A hollow cop changing means according to any of claims 1 to 3, characterised in that the cop magazine (3) is movable between a cop pressing-in position and an inoperative position releasing the space just above the shuttle (2).
  5. A hollow cop changing means according to any of claims 1 to 4, characterised in that a cop-residue removing device (56) is additionally provided and comprises a cop-residue gripper (57) movable between a release position and a receiving position just above the clamping device (38) belonging to the shuttle (2) in the cop changing position.
  6. A hollow cop changing means according to any of claims 1 to 5, characterised in that a cutting device (53) which, in the cop-changing position of the shuttle (2) is insertable into the trough space (37) between the cop residue and the thread insertion slot (40), is additionally provided for cutting the weft thread extending from the cop residue to the selvedge (62).
  7. A hollow cop changing means according to claim 6, characterised in that the cutting device is connected to and moves with the cop residue removal device (56) and is preferably in the form of shears (53) actuated by a pressure medium cylinder.
  8. A hollow cop changing means according to any of claims 1 to 7, characterised by two weft thread grippers (27, 28) disposed in stationary manner near the breast beam (61) for gripping the weft thread introduced into the web by the shuttle (2), and a weft-thread cutting device (29) disposed on the sley (1) for cutting the weft thread held in the weft-thread grippers (27, 28) during the stroke of the sley.
  9. A hollow cop changing means according to claim 8, characterised in that the weft thread cutting device is in the form of thread shears (29) actuated by a striking element (31), and an abutment part (30) movably guided between an abutment position and an inoperative position is disposed on the breast beam (61) and during the stroke of the sley (11) actuates the thread shears (29) only when in its abutment position.
  10. A hollow cop changing means according to any of claims 1 to 9, characterised in that the cop magazine (3) has a number of storage shafts (6) respectively adapted to receive hollow cops (7) of a particular associated kind and/or cover, and having separately actuated shutters (8) at their outlet ends.
  11. A hollow cop changing means according to claim 10, characterised in that the cop pressing-in device (12, 13) is disposed in the cop magazine (3) between adjacent storage shafts (6) which open into a common pressing-in chamber (14) divided by the shutters (8) and under the pressing-in ram (42).
  12. A hollow cop changing means according to claim 10 or 11 for a wide loom, more particularly for producing endless paper machine coverings and comprising shuttle boxes superposed in the form of drop boxes at each end of the sley (1), shuttles (2) associated with the shuttle boxes for receiving hollow cops (7) of a particular kind of colour, and conventional control devices for changing the drop boxes in predetermined manner depending on the kind of weave, characterised in that the sley (1) has positioning elements (15, 16) movable between a locking position and a retracted release position in a region between the shuttle box and the selvedge (62) and spaced apart corresponding to the length of the shuttle (2), so as to secure the shuttle (2) in the cop changing position, the cop magazine (3), the cop pressing-in device (12, 13), the cop ejector (33 - 35) and the thread insertion device (21) are each disposed above the thus-determined cop changing position, the control devices comprise means for independently adjusting the positioning elements (15, 16) between the locking position and the release position, and a return device (25, 26) is provided for returning the shuttle (2) loaded with a new hollow cop (7) to the associated shuttle box.
  13. A hollow cop changing means according to claim 12, characterised in that the shuttle stroke device can be changed over so as gently to move the shuttle (2) into the cop-changing position.
  14. A hollow cop changing means according to any of claims 10 to 13, characterised in that the positioning elements are positioning levers (15, 16) mounted in the sley (1) and pivotable upwards into the locking position.
  15. A hollow cop changing means according to any of claims 10 to 14, characterised in that the return device comprises a pressure-medium cylinder (25) preferably connected to and moving with the cop magazine (3) and a return block (26) actuated by the cylinder and accelerating the shuttle (2).
  16. A hollow cop changing means according to any of claims 1 to 15, characterised in that preferably electronic measuring devices are provided for the residue of weft yarn, decreasing as a result of the pick, in the hollow cop (7) in the shuttle (2), and adjusting devices automatically actuated when a predetermined weft yarn residue is reached are provided for initiating the cop-changing process.
  17. A hollow cop changing means according to any of claims 1 to 16, characterised by freely programmable electric control devices for the cloth draw-off, the weft slackening, the dobby, the hydraulic shuttle striking device, the drop box change if any, and the time sequence of the automatic cop change process.
  18. A hollow cop changing means according to claim 17, characterised in that the electronic control devices can also be actuated intermittently by hand.
  19. A hollow cop change device according to claim 17 or 18 for looms with drop box change, characterised in that the control devices, in the case of a shuttle (2) with a cop residue needing changing, delay the cop change until the shuttle (2) returns to the sley path for knocking over.
EP87114719A 1987-10-08 1987-10-08 Hollow cop changing apparatus for a loom Expired - Lifetime EP0310697B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP87114719A EP0310697B1 (en) 1987-10-08 1987-10-08 Hollow cop changing apparatus for a loom
DE8787114719T DE3775400D1 (en) 1987-10-08 1987-10-08 TUBE HEAD REPLACEMENT DEVICE FOR A WEAVING MACHINE.
ES198787114719T ES2028020T3 (en) 1987-10-08 1987-10-08 DEVICE FOR CHANGING THE SLEEVE KNOB FOR A WEAVING MACHINE.
AT87114719T ATE70573T1 (en) 1987-10-08 1987-10-08 HOSE COP REPLACEMENT DEVICE FOR A LOOPPING MACHINE.
JP63254683A JPH01124653A (en) 1987-10-08 1988-10-08 Tube cup replacing apparatus for loom
US07/255,647 US4934415A (en) 1987-10-08 1988-10-11 Tubular cop exchange arrangement for looms
GR91401971T GR3003450T3 (en) 1987-10-08 1991-12-30 Hollow cop changing apparatus for a loom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87114719A EP0310697B1 (en) 1987-10-08 1987-10-08 Hollow cop changing apparatus for a loom

Publications (2)

Publication Number Publication Date
EP0310697A1 EP0310697A1 (en) 1989-04-12
EP0310697B1 true EP0310697B1 (en) 1991-12-18

Family

ID=8197345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114719A Expired - Lifetime EP0310697B1 (en) 1987-10-08 1987-10-08 Hollow cop changing apparatus for a loom

Country Status (7)

Country Link
US (1) US4934415A (en)
EP (1) EP0310697B1 (en)
JP (1) JPH01124653A (en)
AT (1) ATE70573T1 (en)
DE (1) DE3775400D1 (en)
ES (1) ES2028020T3 (en)
GR (1) GR3003450T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20051470A1 (en) * 2005-07-28 2007-01-29 Mec Trinca Colonel Silvio & Figlio EQUIPMENT FOR SHIFT CHANGE IN SHUTTLE FRAMES

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786659A (en) * 1928-11-22 1930-12-30 Crompton & Knowles Loom Works Weft-replenishing loom
US1791853A (en) * 1929-11-09 1931-02-10 Draper Corp Automatically-threading loom shuttle
US2000969A (en) * 1933-05-26 1935-05-14 Sutton Tool Co Inc Weft replenishing loom structure
FR886873A (en) * 1940-01-05 1943-10-27 Ru Ti Vormals Caspar Honegger Method and apparatus for weaving pieces of fabric on looms
GB736951A (en) * 1949-06-07 1955-09-14 Coeurtys S A Device for threading shuttles in automatic looms
GB774214A (en) * 1953-12-01 1957-05-08 Rueti Ag Maschf A method of feeding the weft bobbins to the automatic bobbin changing arrangement of looms and mechanism for carrying out the method
US2957497A (en) * 1957-09-09 1960-10-25 Fischer Ag Georg Weft pirn supply mechanism
US2921610A (en) * 1958-08-01 1960-01-19 Draper Corp Replenishing mechanism for looms
CH391602A (en) * 1961-04-05 1965-04-30 Toyoda Automatic Loom Works Bobbin changing device for looms
CH609013A5 (en) * 1975-12-18 1979-02-15 Schweiter Ag Maschf

Also Published As

Publication number Publication date
DE3775400D1 (en) 1992-01-30
ES2028020T3 (en) 1992-07-01
EP0310697A1 (en) 1989-04-12
ATE70573T1 (en) 1992-01-15
GR3003450T3 (en) 1993-02-17
JPH01124653A (en) 1989-05-17
US4934415A (en) 1990-06-19

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