EP0310697B1 - Schlauchkops-Auswechselvorrichtung für eine Webmaschine - Google Patents

Schlauchkops-Auswechselvorrichtung für eine Webmaschine 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
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0310697A1 (de
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
Original Assignee
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 EP87114719A priority Critical patent/EP0310697B1/de
Application filed by Juergens Maschinenbau & Co KG GmbH filed Critical Juergens Maschinenbau & Co KG GmbH
Priority to DE8787114719T priority patent/DE3775400D1/de
Priority to ES198787114719T priority patent/ES2028020T3/es
Priority to AT87114719T priority patent/ATE70573T1/de
Priority to JP63254683A priority patent/JPH01124653A/ja
Priority to US07/255,647 priority patent/US4934415A/en
Publication of EP0310697A1 publication Critical patent/EP0310697A1/de
Application granted granted Critical
Publication of EP0310697B1 publication Critical patent/EP0310697B1/de
Priority to GR91401971T priority patent/GR3003450T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D45/00—Looms with automatic weft replenishment
    • D03D45/20—Changing 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)
EP87114719A 1987-10-08 1987-10-08 Schlauchkops-Auswechselvorrichtung für eine Webmaschine Expired - Lifetime EP0310697B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE8787114719T DE3775400D1 (de) 1987-10-08 1987-10-08 Schlauchkops-auswechselvorrichtung fuer eine webmaschine.
ES198787114719T ES2028020T3 (es) 1987-10-08 1987-10-08 Dispositivo de cambio de canilla de manga para una maquina tejedora.
AT87114719T ATE70573T1 (de) 1987-10-08 1987-10-08 Schlauchkops-auswechselvorrichtung fuer eine webmaschine.
EP87114719A EP0310697B1 (de) 1987-10-08 1987-10-08 Schlauchkops-Auswechselvorrichtung für eine Webmaschine
JP63254683A JPH01124653A (ja) 1987-10-08 1988-10-08 織機のためのチューブコップ交換装置
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 (de) 1987-10-08 1987-10-08 Schlauchkops-Auswechselvorrichtung für eine Webmaschine

Publications (2)

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

Family

ID=8197345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114719A Expired - Lifetime EP0310697B1 (de) 1987-10-08 1987-10-08 Schlauchkops-Auswechselvorrichtung für eine Webmaschine

Country Status (7)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20051470A1 (it) * 2005-07-28 2007-01-29 Mec Trinca Colonel Silvio & Figlio Apparecchiatura per il cambio di spola in telai a navetta

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 (fr) * 1940-01-05 1943-10-27 Ru Ti Vormals Caspar Honegger Procédé et appareillage pour le tissage des pièces d'étoffe sur les métiers à tisser
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 (de) * 1961-04-05 1965-04-30 Toyoda Automatic Loom Works Spulenwechseleinrichtung für Webstühle
CH609013A5 (es) * 1975-12-18 1979-02-15 Schweiter Ag Maschf

Also Published As

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

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