EP0427044A1 - Procédé et dispositif pour attacher le bout du ruban de fibres au pot à ruban de fibres - Google Patents

Procédé et dispositif pour attacher le bout du ruban de fibres au pot à ruban de fibres Download PDF

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Publication number
EP0427044A1
EP0427044A1 EP90120359A EP90120359A EP0427044A1 EP 0427044 A1 EP0427044 A1 EP 0427044A1 EP 90120359 A EP90120359 A EP 90120359A EP 90120359 A EP90120359 A EP 90120359A EP 0427044 A1 EP0427044 A1 EP 0427044A1
Authority
EP
European Patent Office
Prior art keywords
sliver
gripping device
clamping elements
clamping
clamp
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.)
Granted
Application number
EP90120359A
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German (de)
English (en)
Other versions
EP0427044B1 (fr
Inventor
Marcel Siegenthaler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0427044A1 publication Critical patent/EP0427044A1/fr
Application granted granted Critical
Publication of EP0427044B1 publication Critical patent/EP0427044B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D01H9/008—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving for cans

Definitions

  • the invention relates to a method and a device for fixing the sliver end to sliver cans by means of a clamping device, the end of the sliver hanging loosely on the outer jacket of the can and the can being rotatable about its longitudinal axis.
  • sliver cans When operating textile machines, e.g. Spinning machines, sliver cans are continuously filled and emptied. Empty sliver cans are exchanged for full ones and vice versa. Each time a full sliver can is inserted into the processing of the sliver, the end of the sliver must be grasped at the can and inserted into the textile machine.
  • textile machines e.g. Spinning machines
  • a device is known, by means of which a textile band hanging over the edge of a can can be inserted into a fiber band feed device of a spinning machine.
  • This device consists of a swivel arm with a clamp in which the end of the sliver is held. Since with this device the swivel arm is firmly attached to a can changing device and the cans are in turn firmly positioned in a manipulator, the sliver must hang out at a precisely defined point over the edge of the can and / or be inserted manually into the swivel arm and clamped there. This process is labor intensive and hinders the desired automatic sequence of the piecing process.
  • Another device and a method for fixing fiber sliver ends which hang down on the outside of containers is known from European Patent No. 69 087 B1.
  • the containers eg sliver cans
  • a catching device for the belt ends is arranged, which can be moved along a partial area of the transport route.
  • the safety gear has sensors by means of which the presence of a band in the area of the safety gear is to be determined.
  • a can is first brought into the area of the catching device and then the can is rotated about the longitudinal axis until a sensor of the catching device directed against the jacket of the container detects the strap.
  • the safety gear must then be moved to the casing at approximately a right angle to the container.
  • the container and safety gear must be moved in the vertical direction relative to each other in order to bring the strap end into the correct gripping position.
  • the band often hangs diagonally, twisted, kinked or in some other way down on the outer jacket of the container. Or there are longitudinal seams or other interfering elements on the container jacket, which the sensor erroneously recognizes as textile tape. In the latter case, the end of the belt cannot be fixed and the jug or the whole process is stopped.
  • the sensor can recognize a belt, but it loses it again when moving vertically, or the clamping elements close next to the belt, since they are moved vertically. This leads to malfunctions and the automatic process has to be interrupted frequently. It is also possible that there is a tape end that is too far from the container jacket is caught on the outside of the safety gear, or the clamping elements, and therefore cannot be detected at all. This also leads to business interruptions. Furthermore, the positioning of the safety gear in several steps is time-consuming and requires several drives and control elements, which also increases the susceptibility to faults of the system. This known method is therefore unable to meet the requirements of an automatic operating sequence.
  • the method and the device are intended to make manual auxiliary measures superfluous, enable the automation of the can changing process and reduce the error rate when setting the end of the strip.
  • the main advantages of the invention are the fact that the sliver can hang loosely at any point and in any manner on the outer jacket of the jug. This can be straight, oblique or twisted or at a distance from the jacket.
  • the method according to the invention and the gripping device according to the invention enable a fully automatic and secure gripping or fixing of the fiber sliver.
  • the gripping device is placed on the upper part of the outer jacket of the jug, whereby it is at a vertical height of the jug, which corresponds to the height of the hanging band.
  • the jug is then rotated about its longitudinal axis until the sliver is inserted into the belt clamp of the gripping device by the rotary movement.
  • the sliver is pulled through the band clamp until the end of the band has the desired distance from the gripping device. At this moment the belt clamp is closed and the rotation of the jug is stopped. The sliver end is clamped in the gripping device so that it has the desired position for transfer to the sliver feed device of the textile machine.
  • the relative movements of the can jacket or the hanging fiber sliver relative to the gripping device can be influenced by the fact that the gripping device can be moved on a circular path around the outer jacket of the can in addition to the rotary movement of the can. As a result, the detection of the sliver can be accelerated or delayed, depending on whether the gripping device is moved with or against the direction of rotation of the can.
  • the strap end is pulled through the strap clamps as a result of the relative movements until it has reached the desired position.
  • the end of the tape is found and fixed in the correct position and made available for transfer to the textile machine. Since the clamping elements are directed against the direction of rotation of the can jacket or the fiber sliver and a clamping element lies approximately on the jacket, the fiber sliver is inserted into the clamping elements of the gripping device without sensors or other aids. An additional displacement of the gripping device is not necessary since the end of the band is pulled into the correct position relative to the gripping device by the rotary movement. This simplifies the setting process for the end of the tape and can be carried out more quickly.
  • the object of the invention also serves as a transfer device in that the gripping device, after clamping the sliver, is moved into a transfer position in which the sliver can be transferred to the subsequent textile machine. This transfer position is then independent of the position of the can itself, since the end of the belt is fixed in the gripping device.
  • the method according to the invention and the gripping device thus enable the can changing process to be fully automated.
  • the sliver end can be cut off at the end of the filling process and dropped, whereby it can hang over the edge of the can in any position. Manual additional actions are not necessary since the end of the tape is always found and fixed.
  • the can shown in Figure 1 is filled with sliver 2 and is located on a changing device, not shown, such as a transport vehicle.
  • the can 1 is rotatable about its vertical axis 30.
  • a platform also not shown, is arranged on the transport vehicle, which is rotatable and as a carrier for the Jug 1 is used.
  • the sliver 2 is stored in loops in the can 1 in a known manner, the end 31 of the sliver 2 hanging over the edge of the can 1.
  • a gripping device 3 is arranged, which is connected to a manipulator, not shown. This manipulator makes it possible to move the gripping device along the circular path 5 and to carry out movements in the vertical and horizontal directions.
  • a clamp 6 is arranged, by means of which the sliver 2 can be fixed and held. In the receiving position for the sliver 2, part of the clamp 6 lies against the jacket 4 of the can 1, there being a distance necessary for the movement sequence.
  • the gripping device 3 is shown in a partial section, wherein the rear end of the gripping device 3 is cut away with the connection to the manipulator.
  • two clamping elements 7, 8 are arranged, which are mounted on a common bearing 9 and form the clamp 6.
  • the clamping elements 7, 8 are pivotable about the bearing 9 and can perform pincer-like closing and opening movements.
  • Each of the clamping elements 7, 8 has a clamping surface 17 or 18 at the foremost end, to which an inclined sliding surface 19 or 20 adjoins.
  • the clamping surfaces 17, 18 and the inclined sliding surfaces 19, 20 form an inlet funnel 21 for the sliver 2 and are directed against the direction of rotation 37 of the can 1.
  • the clamping elements 7, 8 are equipped with actuating levers 10, 11 which have active surfaces 12, 13.
  • a cam disk 14 is mounted between the actuating levers 10, 11 and fastened on the motor shaft 15.
  • This cam disc 14 has two switching cams 25, 26 with sliding surfaces 32, 33, the active surfaces 12, 13 of the actuating levers 10, 11 abutting against these sliding surfaces of the cam disc 14.
  • the shaft 15 is through a Drive motor 16 driven, which is connected to a controller, not shown, and is equipped in a known manner with energy supply lines.
  • Each of the clamping elements 7, 8 also has a tab 24, in which a clamping element 22, 23 is suspended in the form of a tension spring.
  • tension springs 22, 23 pull the actuating levers 10, 11 against the cam disk 14 and cause the active surfaces 12, 13 to follow the control surfaces of the cam disk 14.
  • other means such as pneumatic or hydraulic cylinders can also be installed as clamping elements 22, 23. 2
  • the clamping elements 7, 8 are in the widest opening position. The end of a fiber sliver 2 is inserted into the inlet funnel 21 so that it is fixed and clamped between the clamping surfaces 17, 18 after the clamping elements 7, 8 have closed.
  • the side view of the front part of the gripping device 3 shown in FIG. 3, according to FIG. 2, shows the gripping process of the end 31 of the sliver 2.
  • the gripping device 3 is equipped with a sensor 28, which may be a known proximity sensor, for example.
  • the sensor 28 is connected to the drive motor 16 or its control via a control line 29.
  • the measuring range of the sensor 28 extends in the direction of the axis 34, and the sensor 28 responds as soon as a sliver 2 is inserted into the inlet funnel 21 between open clamping elements 7, 8 of the clamp 6.
  • the sensor 28 When the fiber sliver 2 is inserted, the sensor 28 generates a control signal which sets the drive motor 16, or the terminal 6, ready to close.
  • the sliver 2 is pulled upward by the open clamp 6, after a certain time the end 31 of the sliver 2 reaches the axis 34 of the measuring range of the sensor 28. As soon as the end 31 of the sliver 2 exceeds the axis 34, the sensor 28 generates a second control signal which activates the drive motor 16, whereby the motor shaft 15 and thus the cam disk 14 ver is rotated, and the switching cams on the cam 14 are actuated. Characterized the clamping elements 7, 8 of the clamp 6 are closed, and the sliver is clamped in a position as shown in dashed lines in Figure 3 and is identified by the reference numerals 2 'and 31'. This position of the end 31 'of the sliver 2' corresponds to the desired transfer position from which the sliver 2 can be transferred to the transfer device of a textile machine.
  • the cam disk 14 is shown in detail in FIG. 4, the gripping device 3 being cut in the region of the cam disk 14 and being shown from the front.
  • the cam disc 14 is surrounded by a housing 35 of the gripping device 3 and is rotatable in the direction of arrow 36 with the motor shaft 15.
  • the cam disc 14 has two switching cams 25 and 26, which are each provided with a sliding surface 32, 33.
  • the actuating levers 10, 11 of the clamping elements 7, 8 are arranged on both sides of the cam disk 14.
  • the active surfaces 12, 13 are articulated on these actuating levers 10, 11.
  • the clamping elements 7, 8, or the clamp 8 are closed, i.e. the active surfaces 12, 13 of the actuating levers 10, 11 do not touch the sliding surfaces 32, 33 on the cam disk 14.
  • the sliver 2 is fixed in such a way that after filling the can 1, the sliver 2 is cut off and the end 31 is loosely suspended at some point over the edge of the can.
  • the end 31 of the sliver 2 is usually at least a hundred millimeters below the edge of the can.
  • the gripping device 3 is now brought into the space around the outer jacket 4 of the jug 1, namely in a plane which is located somewhat below the edge of the jug.
  • the clamp 6 is open and the clamping element 7 is practically at a distance from the outer jacket 4 of the can 1.
  • the jug 1 is now rotated until the sliver 2, which hangs over the jug rim on the outer jacket 4, is inserted into the clamp 6 of the gripping device 3.
  • the sensor 28 responds and sets the gripping device 3 ready for closing.
  • the jug 1 is now rotated further, whereby the sliver 2 is pulled through the clamp 6.
  • the end 31 of the clamping device 3 approaches until a predetermined distance is reached. This is the case when the end 31 passes through the axis 34 of the measuring range of the sensor 28.
  • the sensor 28 generates the control command to close the terminal 6, which is done by turning the cam disk 14.
  • the gripping device 3 can additionally be displaced along the circular path 5, wherein it moves concentrically with the outer casing 4 of the can 1. This enables the sliver 2 to be gripped more quickly when the can 1 is moved in the direction of the arrow 37 and the gripping device 3 in the direction of the arrow 38.
  • the fixing process of the band end 31 can be delayed by moving the gripping device 3 in the same direction as the arrow 37. It is also evident from the explanations that the advantages of automatically setting the end 31 of the sliver 2 with the aid of the method and device according to the invention are also possible when the can 1 is fixed and only the gripping device 3 is moved along the circular path 5.
  • the method according to the invention and the gripping device can thus be adapted in a simple manner to the needs of various can changing devices and enable a saving in operating time for the determination of the end 31 of the band 2 and the positioning of this sliver end 31 as well as a considerable reduction in susceptibility to faults.
  • FIG. 5 shows a vertical side view according to FIG. 1.
  • the jug 1 is set up on a turntable 43 and horizontally centered on a cone 52 of the turntable 43 via a conical recess in the bottom of the jug.
  • the turntable 43 is mounted in a frame 42 of a transport vehicle via the rollers 46 and 47.
  • the drive or the rotary movement of the turntable 43 takes place via a friction wheel 44 which rests on the underside of the turntable and is driven by a motor 45 which is mounted on the frame 42 of the vehicle.
  • a friction wheel 44 which rests on the underside of the turntable and is driven by a motor 45 which is mounted on the frame 42 of the vehicle.
  • the gripping device 3 is pivoted horizontally about the axis 40 on a swivel arm 41 and is in the position shown in FIG. 1 in the system on the outer casing 4 of the can 1.
  • the swivel arm 41 (not shown) can be mounted on a swivel column of the vehicle and, in addition to its horizontal movement, can carry out a vertical movement to transfer the band to the subsequent receiving device.
  • the motor 45 is connected to a central control 51 via a control line 50, the motor 16 via a control line 48 and the sensor 28 via a line 49.
  • the control takes place as already described above, wherein after the triggering of the clamping elements 7, 8 via the motor 16, the motor 45 for driving the turntable 43 is stopped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP90120359A 1989-11-07 1990-10-24 Procédé et dispositif pour attacher le bout du ruban de fibres au pot à ruban de fibres Expired - Lifetime EP0427044B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4012/89A CH679773A5 (fr) 1989-11-07 1989-11-07
CH4012/89 1989-11-07

Publications (2)

Publication Number Publication Date
EP0427044A1 true EP0427044A1 (fr) 1991-05-15
EP0427044B1 EP0427044B1 (fr) 1993-11-24

Family

ID=4268160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120359A Expired - Lifetime EP0427044B1 (fr) 1989-11-07 1990-10-24 Procédé et dispositif pour attacher le bout du ruban de fibres au pot à ruban de fibres

Country Status (6)

Country Link
US (1) US5113550A (fr)
EP (1) EP0427044B1 (fr)
JP (1) JP2918058B2 (fr)
CH (1) CH679773A5 (fr)
CS (1) CS544890A3 (fr)
DE (1) DE59003610D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2684364A1 (fr) * 1991-12-03 1993-06-04 Schlumberger Cie Procede et dispositif de recherche et de prehension d'un ruban, notamment par son extremite, dans une machine textile.
DE4335173A1 (de) * 1993-10-15 1995-04-20 Schlafhorst & Co W Kannenwechseleinrichtung
DE19526891A1 (de) * 1995-07-22 1997-01-23 Schlafhorst & Co W Kannenwechseleinrichtung für Rechteckkannen mit Dreheinrichtung
US6389648B1 (en) 1999-08-04 2002-05-21 TRüTZSCHLER GMBH & CO. KG Device and method for lengthening a free sliver end in a coiler can

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ280383B6 (cs) * 1991-09-23 1996-01-17 Rieter Elitex A.S. Zařízení pro zavedení zpevněné zaváděcí špice vlákenného pramene do spřádací jednotky rotorové ho dopřádacího stroje
DE4308606A1 (de) * 1993-03-18 1994-09-22 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Faserbandtrennung an einer Strecke
DE59501816D1 (de) * 1994-05-13 1998-05-14 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Trennung des Faserbandes an einer Faserband abliefernden Textilmaschine
DE19537667C1 (de) * 1995-10-10 1996-10-10 Rosink Gmbh & Co Kg Vorrichtung zum Überführen des losen Endes eines Faserbandes in eine Faserbandkanne
DE19547405A1 (de) * 1995-12-19 1997-06-26 Schlafhorst & Co W Einrichtung zum Vorbereiten einer frisch mit Faserband gefüllten Kanne
WO2006003679A1 (fr) * 2004-06-30 2006-01-12 Ministero Dell'istruzione, Dell'universita'e Della Ricerca Appareil et procede d'insertion et de preacheminement de ruban dans une unite de filage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069087A1 (fr) * 1981-06-19 1983-01-05 Officine Savio S.p.A. Procédé et dispositif pour charger un râtelier et pour interconnecter des machines de traitement de fibres
DE2646313C2 (de) * 1976-10-14 1986-07-03 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und Vorrichtung zum Auswechseln von Faserbandkannen
EP0301330A1 (fr) * 1987-07-30 1989-02-01 Zinser Textilmaschinen GmbH Méthode et dispositif pour le changement de pots de ruban pour un métier à filer préparatoire
EP0340459A1 (fr) * 1988-05-02 1989-11-08 SCAGLIA S.p.A. Dispositif pour distribuer automatiquement des mèches aux métiers à filer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962535A (fr) * 1963-04-26
IT1108736B (it) * 1978-03-30 1985-12-09 Bulla Beatrice Perfezionamento apportato alle rastrelliere a vasi per l'alimentazione di nastri di fibre tessili a macchine operatrici
DE3501875A1 (de) * 1985-01-22 1986-07-24 Fritz 7347 Bad Überkingen Stahlecker Verfahren zum ansetzen eines neuen faserbandes bei einer oe-spinnvorrichtung
DE3616833C2 (de) * 1986-05-17 1996-08-14 Truetzschler Gmbh & Co Kg Verfahren und Vorrichtung zum fliegenden Wechseln von Spinnkannen an Spinnereivorbereitungsmaschinen, insbesondere Strecken
DE3802414A1 (de) * 1988-01-28 1989-08-10 Fritz Stahlecker Spinnmaschine mit einer vielzahl von nebeneinander angeordneten spinnstellen
DE3872220T2 (de) * 1988-03-22 1992-12-03 Pettinatura Italiana Spa Verfahren und vorrichtung zum auffinden eines endes eines textilfaserbandes und zum fuehren dieses endes in eine zufuehreinrichtung einer textilmaschine.
DE3831640A1 (de) * 1988-09-17 1990-03-22 Schlafhorst & Co W Aggregat aus einem spinnautomaten und einer vorrichtung zum wechseln leerer gegen volle kannen
DE3831637A1 (de) * 1988-09-17 1990-04-05 Schlafhorst & Co W Aggregat aus einem oe-spinnautomaten und einer kannenwechselvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2646313C2 (de) * 1976-10-14 1986-07-03 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und Vorrichtung zum Auswechseln von Faserbandkannen
EP0069087A1 (fr) * 1981-06-19 1983-01-05 Officine Savio S.p.A. Procédé et dispositif pour charger un râtelier et pour interconnecter des machines de traitement de fibres
EP0301330A1 (fr) * 1987-07-30 1989-02-01 Zinser Textilmaschinen GmbH Méthode et dispositif pour le changement de pots de ruban pour un métier à filer préparatoire
EP0340459A1 (fr) * 1988-05-02 1989-11-08 SCAGLIA S.p.A. Dispositif pour distribuer automatiquement des mèches aux métiers à filer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2684364A1 (fr) * 1991-12-03 1993-06-04 Schlumberger Cie Procede et dispositif de recherche et de prehension d'un ruban, notamment par son extremite, dans une machine textile.
EP0545807A1 (fr) * 1991-12-03 1993-06-09 N. SCHLUMBERGER & CIE Procédé et dispositif de recherche et de préhension d'un ruban, notamment par son extrémité, dans une machine textile
DE4335173A1 (de) * 1993-10-15 1995-04-20 Schlafhorst & Co W Kannenwechseleinrichtung
US5720161A (en) * 1993-10-15 1998-02-24 W. Schlafhorst Ag & Co. Sliver can, can changer and pallet
DE19526891A1 (de) * 1995-07-22 1997-01-23 Schlafhorst & Co W Kannenwechseleinrichtung für Rechteckkannen mit Dreheinrichtung
US6389648B1 (en) 1999-08-04 2002-05-21 TRüTZSCHLER GMBH & CO. KG Device and method for lengthening a free sliver end in a coiler can

Also Published As

Publication number Publication date
US5113550A (en) 1992-05-19
JP2918058B2 (ja) 1999-07-12
CH679773A5 (fr) 1992-04-15
JPH03166169A (ja) 1991-07-18
DE59003610D1 (de) 1994-01-05
CS544890A3 (en) 1992-01-15
EP0427044B1 (fr) 1993-11-24

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