EP0143187B1 - Fadenknotvorrichtung - Google Patents

Fadenknotvorrichtung Download PDF

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Publication number
EP0143187B1
EP0143187B1 EP84109862A EP84109862A EP0143187B1 EP 0143187 B1 EP0143187 B1 EP 0143187B1 EP 84109862 A EP84109862 A EP 84109862A EP 84109862 A EP84109862 A EP 84109862A EP 0143187 B1 EP0143187 B1 EP 0143187B1
Authority
EP
European Patent Office
Prior art keywords
suction
knotting
carriage
clamping member
yarn
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
Application number
EP84109862A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0143187A1 (de
Inventor
Karl-Heinz Kohlen
Rolf Vieten
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.)
Hacoba Textilmaschinen GmbH and Co KG
Original Assignee
Hacoba Textilmaschinen GmbH and Co KG
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 Hacoba Textilmaschinen GmbH and Co KG filed Critical Hacoba Textilmaschinen GmbH and Co KG
Publication of EP0143187A1 publication Critical patent/EP0143187A1/de
Application granted granted Critical
Publication of EP0143187B1 publication Critical patent/EP0143187B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/04—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by knotting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a thread knotting device for textile machines, in particular for creelers, with a knotter and with a thread feed device, which pairs the thread ends to be knotted with a suction tube that has a suction end with a clamping element that can be subjected to a limited amount of force and that has the clamping thread that can be sucked in on one Clamping seat which forms the suction opening is clamped after suction.
  • a thread knotting device of the type mentioned at the outset which has these features has a clamping body which closes an enlarged pipe end of an intake pipe and is acted upon by a spring in the clamping direction.
  • the clamping body articulated with a lever on the suction end is acted upon by a Bowden cable, so that the negative pressure present in the suction pipe can suck the thread ends into the suction pipe.
  • the Bowden cable is then actuated in such a way that the closing spring can bring the clamping body into the clamping position.
  • the invention is therefore based on the object of improving a knotting device of the type described at the outset in such a way that it works trouble-free with a simple structure.
  • the clamping body of the knotting device according to the invention can move freely according to the flow conditions due to its freedom of movement on all sides in the movement space available to it. He will therefore move when sucking the thread ends so that confusion of the thread ends with him is already excluded. However, it is also mechanically uncoupled, so it has no parts that lead it relative to the suction end or the suction pipe and can form defects at which the sucked thread ends get tangled.
  • the suction end of an intake pipe is free of mechanical components for controlling the clamping body, so that the number of necessary components is limited to a minimum.
  • the clamping body is a ball arranged inside the suction end behind the suction opening in terms of suction flow. Regardless of its spatial position relative to the suction end, this guarantees reliable clamping of the suctioned thread ends on all sides.
  • the clamp body has a diameter exceeding the inner diameter of the suction pipe, and the inner diameter of the suction end exceeds the diameter of the clamp body.
  • the clamping body cannot therefore abut against an inner wall of the suction end during a rotation or rotation about a center.
  • a magnetic force-sensitive clamp body is acted upon by a magnetic force exciter. Therefore, the clamping body can be brought into the clamping position by magnetic force.
  • the application of magnetic force to the clamping body ensures that the thread ends are clamped without a mechanical component having to act on the clamping body.
  • the magnetic force generator is preferably a permanent magnet arranged at a distance from the clamping body in terms of suction flow in front of the suction opening.
  • a thread knotting device in which a plurality of suction tubes of thread feed devices acting in parallel are connected to a central suction channel interacting with a suction blower, the suction blower is preceded on the suction side by a suction chamber provided with a suction opening parallel to the suction tubes, the suction blower has a compressed air passage on the pressure side to the central suction channel, and the The suction chamber and the compressed air passage of the suction fan to the central suction channel can be shut off when the thread feed device is in suction air mode, but can be opened for compressed air mode in the case of supply air and exhaust air channels of the suction fan that are blocked for suction air mode.
  • a thread clamping body of a thread feed device or a suction pipe can be sucked in alternately in order to open a suction opening for the thread ends, or pressed against the suction opening with compressed air in order to clamp the thread ends.
  • a clamping force can be applied to the clamping body without the fact that it can be hindered with its all-round free mobility within the limited range of movement available to it and without having to be mechanically coupled. Only a small mechanical effort is necessary to get by with only one intake fan and to switch from suction air operation to compressed air operation and vice versa.
  • the suction openings of the suction chamber and the supply air duct of the suction fan are on the one hand and the compressed air passage and the exhaust air duct of the
  • the intake fan can be opened or shut off by a reversible butterfly valve.
  • the butterfly valves are mechanically positively controlled depending on the drive of the intake pipes.
  • the knotting carriage n + m has knotting units each with an intake tube if the n winding stations of each vertical winding station row are offset in height from the m winding stations of an adjacent vertical row of bobbins are.
  • the line can advantageously be provided around a line which is movable in the same direction as the knotting carriage carrying the suction pipes in every position of the knotter carriage holding tight pulley.
  • This deflection roller ensures that the portable cable is laid down smoothly within the length of the creel.
  • the deflecting roller is to be moved by a compensating rope which runs from a fastening point on the knotter carriage via a stationary deflecting roller arranged at one end of a carriage track to a further stationary deflecting pulley arranged at the other end of the carriage track and is wrapped around one Bracket of the cable pulley is attached near the second stationary pulley.
  • This compensating cable construction makes it possible to keep the deflection roller tightly guided within a gate length using structurally simple means.
  • the invention also relates to a method for knotting thread ends with a thread knotting device, in which the clamping body is brought into the clamping position at the clamping seat with compressed air in the thread ends.
  • the procedure is particularly simple when the compressed air acts through the suction pipe on the clamping body, which thereby closes the suction opening.
  • the same parts are therefore used both in the intake operation and in the compressed air operation, wherein compressed air loss is avoided by the fact that the clamping body closes the intake opening.
  • the thread knotting device shown in the figures essentially consists of a knotter 14, which forms a knotting unit 26 with a thread feed device 25.
  • Such knotting units 26 are attached to a knotting carriage 27 according to FIG. 7, which can be moved with rollers 28 in rails 29 of a creel 30 to form vertical rows of bobbins 31, 31 'etc., each with a plurality of bobbins 32, by means of an integrated electric drive.
  • each winding unit 32 there is a bobbin 33, the thread 12 of which is to be rewound, z. B. using a cone warping a thread band from a variety of such threads 12 is to be warmed.
  • the thread runs through a thread guide 35 or thread brake, which is only shown schematically and which gives the thread 12 a tensile stress required for proper unwinding.
  • the thread brake 35 holds the thread end 13 and it the task arises of knotting this thread end 13 with a thread 12 of a full bobbin 33 so that it can then be further warmed or unwound.
  • the thread feed device 25 serving for this purpose essentially consists of a walking stick-like suction pipe 15, one end of which is rotatably mounted in a knotter carrier 36.
  • the arrangement of the suction pipe 15 is horizontal and thus axially parallel to the horizontal support rod 37 of the thread brake 35.
  • At the other end of the suction pipe 15 there is a suction end 11 which has to grip the thread 12 and the thread end 13.
  • the intake pipe 15 is rotated counterclockwise by a drive chain 38 via a gear 39.
  • the suction pipe 15 loaded with suction air initially takes the thread 12 with it and is then pivoted further counterclockwise via the insert plates 40 until it can take the thread end 13 with it.
  • the parallel threads or thread ends 12, 13 are placed in insertion slots 41 of the insertion sheets 40 and come behind a beak hook 42 of a binding beak 43 with which a connecting knot is produced in a manner known per se.
  • the threads or the thread 12, 13 are sucked in with the suction end 11 described in more detail in FIGS.
  • the suction-side end 44 of the suction pipe 15 opens into a central suction channel 47, through which the suction pipe 15 and the further suction pipes 15 of the thread knotting devices equipped with a plurality of knotting units 26 are subjected to suction air.
  • the suction end 11 consists of a cylindrical hollow body 17, the outer end of which is closed with a cap 18.
  • the hollow body 17 is divided in the middle by a partition 23 'in which there is a suction opening 23. Between this and the cap 18 there is a prechamber 19 with a catch opening 24 arranged in the hollow body 17.
  • the lateral position of this catch opening 24 is due to the fact that the suction pipe 15 is pivoted for catching the threads or thread ends 12, 13 according to FIG. 2 and the catching effect is best when the suction zone of the bobbin 33 or the thread brake 35 is turned.
  • a clamping body space 20 is formed between the partition 23 'and the suction pipe 15, in which a clamping body 21 is located.
  • the structural design is such that the end of the hollow body 17 on the intake pipe side is assembled with the intake pipe 15 via a connecting piece 17 ′ which reduces the air passage cross section.
  • the clamping body 21 is held high within the clamping body space 20, for which purpose pins 22 fastened in the hollow body 17 are used. According to Fig. Four evenly distributed over the circumference pins 22 are provided, which project so far inwards that the clamping body 21 designed as a ball cannot fall down onto the end of the intake pipe.
  • the spherical clamping body 21 is in the clamping position. He closes the suction opening 23 and clamps the thread 12 on the partition 23 '. The suction end 11 can now be rotated through the suction pipe 15 without the thread 12 being lost. The thread 12 is rather pulled along.
  • the clamping body 21 is freely movable on all sides within the range of motion assigned to it and has no mechanical coupling to the suction end 11.
  • the clamping body 21 can therefore not be the cause of thread entanglement and, in this respect, cannot impair the operational safety of the thread knotting device.
  • a permanent magnet 46 is used for this purpose, which is fastened in the cap 18 and reaches one end sufficiently close to the suction opening 23. Accordingly, the clamping body 21 must be sensitive to magnetic forces, ie z. B. consist of iron so that it can be pulled by the permanent magnet 46 in the clamped position.
  • the suction opening 23 is released by the suction end 11 being acted upon by suction air, which, contrary to the action of the permanent magnet 46, can pull the clamping body 21 downward until the threads or thread ends 12, 13 are sucked in sufficiently deep.
  • the required suction power becomes increasingly smaller as the distance between the clamping body 21 and the suction opening 23 increases. Then the suction air is switched off and the permanent magnet 46 pulls the clamping body 21 back into its clamping position at the clamp seat 23 ", cf. also FIG. 4.
  • the knotter carrier 36 For pressurizing the intake pipe 15 or a plurality of intake pipes 15, the knotter carrier 36 forms a central intake duct 47 into which all ends 44 of the intake pipes 15 open.
  • a suction blower 50 is connected with its central inlet 49 via a feed line 48 to a suction chamber 78 which is in flow connection with the central suction passage 47 via a supply air duct 51.
  • the suction chamber 47 has a suction opening 52 to the surroundings.
  • the suction opening 52 and the supply air duct 51 can optionally be blocked by a butterfly valve 53.
  • the air delivered by the intake fan 50 becomes conveyed through an exhaust duct 54 into free space.
  • the intake fan 50 is to be connected to the central suction duct 47 via a compressed air passage 55, a shut-off valve 56 being able to optionally close this compressed air passage 55 or the exhaust air duct 54.
  • the butterfly valves 53, 56 are positioned such that they close the suction opening 52 and the compressed air passage 55.
  • shut-off flaps 53, 56 close the exhaust air duct 54 and the supply air duct 51, so that air flows through the intake opening 52, the intake chamber 47, the supply line 48 and the compressed air opening 55 into the central intake duct 47 and from there into the intake pipes 15 in order to press the clamping body 21 into the clamping position shown in FIG. 4 on the clamping seat 23 ".
  • the reversing of the butterfly valves 53, 56 takes place via Bowden cables 57, 58, each of which is actuated by an adjusting lever 59 and whose pivoting position correspondingly pivot the butterfly valves 53, 56 into one or the other locked position.
  • Each pivot lever 59 is controlled by a cam 60, which sits on the axis of rotation of a ring gear 61, the rotational position of which is influenced by a worm wheel 62 as a function of the rotational position of the drive shaft 63.
  • the drive shaft 63 is in turn acted upon by a servomotor 64 'via a gear-chain drive 64.
  • the drive shaft 63 also drives the drive chain 38 for the gearwheels 39 for rotating the intake pipes 15.
  • cam discs 60 can therefore ensure that within one revolution of the intake pipes 15 on the spool 33 and on the thread brake 35, the pivoting levers are always acted upon 59 takes place through which the butterfly valves 53 u. 56 get into the position shown in FIG. 11. In this situation there is suction operation.
  • the cams 60 ensure that the butterfly valves 53 and. 56 get into their position shown in Fig. 10. Printing is in this position.
  • any other device which applies a closing force to the clamping body 21 can be used, for example also an electromagnet instead of the permanent magnet 26.
  • FIG. 7 shows in side view of a creel 30 that the winding positions 32 on the vertical support rods 34 are offset in height from a vertical winding row 31 to an adjacent winding row 31 '.
  • the winding units 32 of the same height arranged every second vertical winding unit row form a winding unit line.
  • This arrangement of the winding units 32 has the advantage that the length of the winding frame 30 can be kept smaller compared to the usual arrangement of the winding units which is not offset in terms of height, which is particularly important in the case of large frames with many thousands of winding units.
  • the thread knotting device must now be designed in such a way that even with such bobbins, a perfect and quick knotting of the thread or thread ends 12, 13 is possible when the bobbins 32 are newly loaded.
  • the knotting carriage 27 shown in FIG. 7 has six knotting units 26 arranged vertically one above the other on the vertical knotting carrier 36. This is twice the number of knotting devices, based on the number of winding units 32 arranged on a single vertical support rod 34. B. 31, 31 ', with different number of winding units 32, z. B. with m and n, the minimum required number of knot units of the knotter carriage is equal to m + n.
  • the knotter carriage 27 travels from row 31 of bobbins 31 to row of bobbins 31 'etc., only every second knot unit 26 being effective during the knotting process. This results in particular from FIGS.
  • knotters carriage 27 is in a working position in front of a vertical winding row 31 'according to FIG. 9, the knotting units 26' become active when the thread and thread ends 12, 13 are brought together, while the knotting devices 26 run empty.
  • the respective working positions of the knotter carriage 27 are determined by the carriage stops 65 shown on the running rail 29 in FIG. 7. The additional constructional effort described for the knotting carriage of FIGS.
  • the upper running rail 29 and a vertical support 36 ′ of the creel 30 are connected to one another by cross supports 66.
  • a profile channel 67 is also attached to these cross beams 66 and serves to receive a power supply device.
  • the knotter carriage 27 is connected to this current supply device via a current collector bracket 68.
  • This current collector bracket 68 is a rigid component, at the end of the profile channel on the end of FIG. 12, 13 an end 69 of a portable electrical line 70 is connected.
  • the other end 71 of this line 70 is arranged stationary in a conventional manner or at one Power source connected.
  • the line 70 is a flat cable with strain relief, which absorbs the tensile stress exerted on the flat cable or the line 70 and removes it from the electrical conductors.
  • the cable routing within the profile channel 67 is such that the line 70 is guided approximately in the middle of the profile channel 67 and is guided from there to a knotting carriage 27 by wrapping a deflection roller 72 around it.
  • the deflection roller 72 keeps the line 70 tight.
  • the deflection roller 72 is provided with a holder 73 which is connected to a compensating cable 74.
  • the compensating rope 74 is a wire rope which engages with one end on the current collector 68 of the knotter carriage 27 and is guided from there to a stationary deflection roller 75 at the right end of the profile channel 67.
  • the wire rope 74 wraps around this deflection roller 75 and is guided from there to a deflection roller 76 arranged at the other end of the profile channel 67, which is also wrapped around.
  • the left-hand end of the compensating cable 74 is fastened in the vicinity of this stationary deflection roller 76, but previously loops around another deflection roller 77, which is fastened to the holder 73 of the deflection roller 72 intended for the line 70.
  • the routing of the electrical line 70 and the wire cable 74 in the region of the deflection rollers 72, 77 is of opposite design, so that both deflection rollers 72, 77 cover the same distance when the knotter carriage 27 moves.
  • the deflection rollers 72, 77 move as a result of the line or cable routing at half the speed of the knotter carriage 27 or they cover half the distance in comparison to the knotter carriage 27.
  • the described line routing ensures a corresponding tensioning of the line 70 when the compensating cable 74 is kept tight.
  • the entire device is particularly suitable for carrying out the line routing within the path length shown, which must be available within the creel length, ie without the creel in a disruptive manner to extend.

Landscapes

  • Warping, Beaming, Or Leasing (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
EP84109862A 1983-10-29 1984-08-18 Fadenknotvorrichtung Expired EP0143187B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833339331 DE3339331A1 (de) 1983-10-29 1983-10-29 Fadenknotvorrichtung
DE3339331 1983-10-29

Publications (2)

Publication Number Publication Date
EP0143187A1 EP0143187A1 (de) 1985-06-05
EP0143187B1 true EP0143187B1 (de) 1987-03-25

Family

ID=6213063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109862A Expired EP0143187B1 (de) 1983-10-29 1984-08-18 Fadenknotvorrichtung

Country Status (5)

Country Link
US (1) US4569543A (es)
EP (1) EP0143187B1 (es)
DE (2) DE3339331A1 (es)
ES (1) ES8506535A1 (es)
IT (1) IT1180096B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123888A1 (de) 2021-09-15 2023-03-16 Rieter Automatic Winder GmbH Fadenverlegungsvorrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69027130T2 (de) * 1989-02-02 1996-10-02 Tsudakoma Ind Co Ltd Verfahren und Vorrichtung zum automatischen Reparieren eines Kettfadens
US5297323A (en) * 1989-09-19 1994-03-29 Rhone-Poulenc Viscosuisse S.A. Device and process for automatically joining threads
US5024393A (en) * 1990-04-27 1991-06-18 Alandale Industries, Inc. Yarn threading apparatus for tube-type textile yarn creels
DE4231958A1 (de) * 1992-09-24 1994-03-31 Schlafhorst & Co W Verfahren und Vorrichtung zum Einlegen von Fadenenden in eine Fadenendenverbindungsvorrichtung
GB2450716A (en) * 2007-07-04 2009-01-07 Cnh Belgium Nv Improvements in square balers
EP2196424B1 (de) * 2008-12-09 2011-05-11 Karl Mayer Textilmaschinenfabrik GmbH Knoteinrichtung

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FR480989A (fr) * 1914-12-24 1916-10-19 William Lister Dispositif de tension pour bobinoirs et autres machines analogues
DE1685932A1 (de) * 1951-01-28 1972-03-02 Palitex Project Co Gmbh Verfahren zum Beheben eines Fadenbruches an Spindeln von Doppeldrahtzwirn- oder Spinnmaschinen sowie Fadenbruchbeheber zur Durchfuehrung des Verfahrens
GB1213838A (en) * 1967-12-20 1970-11-25 Leesona Corp Supply line handling assembly
CH480254A (de) * 1968-07-18 1969-10-31 Schweiter Ag Maschf Automatische Spulmaschine
CH517645A (de) * 1969-04-29 1972-01-15 Elitex Zavody Textilniho Verfahren zur Steuerung des Knüpfvorganges auf Textilmaschinen, insbesondere automatischen Spulmaschinen, und pneumatische Steuervorrichtung zu dessen Durchführung
US3696477A (en) * 1971-05-10 1972-10-10 Barber Colman Co Warp clamp
DE2142175C3 (de) * 1971-08-23 1973-12-20 Knotex Maschinenbau Gmbh, 8900 Augsburg Webkettenknüpfmaschine
USRE30920E (en) * 1972-10-16 1982-05-04 Otto Zollinger, Inc. Yarn tensioning device and method
GB1440272A (en) * 1972-10-17 1976-06-23 Nihon Spindle Mfg Co Ltd Apparatus for supplying cops to winder units of winding machines and for processing the yarn ends
GB1390478A (en) * 1973-04-02 1975-04-16 Palitex Project Co Gmbh Automatic knotting device for a twisting machine or yarn spooler
US3918651A (en) * 1973-07-02 1975-11-11 Murata Machinery Ltd Method and device for readying of yarn ends, particularly in yarn-winding machines
CH587180A5 (es) * 1974-09-26 1977-04-29 Knotex Maschinenbau Gmbh
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JPS5949332B2 (ja) * 1976-06-25 1984-12-01 村田機械株式会社 紡糸を止めずに糸継する方法
EP0026351A3 (de) * 1979-09-28 1981-08-26 Maschinenfabrik Rieter Ag Verfahren und Handgerät zum Einfädeln
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DE3239495C2 (de) * 1982-10-26 1985-01-17 SIPRA Patententwicklungs-und Beteiligungsgesellschaft mbH, 7000 Stuttgart Kugelbremse für Textilfäden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123888A1 (de) 2021-09-15 2023-03-16 Rieter Automatic Winder GmbH Fadenverlegungsvorrichtung

Also Published As

Publication number Publication date
DE3462778D1 (en) 1987-04-30
IT8468018A0 (it) 1984-10-16
IT8468018A1 (it) 1986-04-16
ES537085A0 (es) 1985-08-01
EP0143187A1 (de) 1985-06-05
IT1180096B (it) 1987-09-23
DE3339331C2 (es) 1988-12-29
ES8506535A1 (es) 1985-08-01
US4569543A (en) 1986-02-11
DE3339331A1 (de) 1985-05-09

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