EP0160659B1 - Fadentransportvorrichtung für eine textilmaschine - Google Patents

Fadentransportvorrichtung für eine textilmaschine Download PDF

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Publication number
EP0160659B1
EP0160659B1 EP84903479A EP84903479A EP0160659B1 EP 0160659 B1 EP0160659 B1 EP 0160659B1 EP 84903479 A EP84903479 A EP 84903479A EP 84903479 A EP84903479 A EP 84903479A EP 0160659 B1 EP0160659 B1 EP 0160659B1
Authority
EP
European Patent Office
Prior art keywords
belt
thread
transport unit
thread transport
unit 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
Application number
EP84903479A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0160659A1 (de
Inventor
Francisco Speich
Erich Buehler
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.)
Textilma AG
Original Assignee
Textilma 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 Textilma AG filed Critical Textilma AG
Priority to AT84903479T priority Critical patent/ATE30749T1/de
Publication of EP0160659A1 publication Critical patent/EP0160659A1/de
Application granted granted Critical
Publication of EP0160659B1 publication Critical patent/EP0160659B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B65H51/105—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips one of which is an endless belt
    • 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 transport device for a textile machine, in particular for the weft thread of a weaving machine, according to the preamble of claim 1.
  • Thread transport devices of the type mentioned are known for example from CH-PS 565 879.
  • different thread transport device variants are described, which have a rotating belt for receiving and transporting the thread and can be driven at a variable speed.
  • a thread transport device is also described, in which a rotating belt that transports the thread is guided on the one hand between two conical regulating disks arranged on a drive shaft and their axial distance can be changed, and on the other hand runs over at least one deflection roller.
  • a pressure roller presses the thread to be conveyed against the belt.
  • the speed of the belt can be adjusted by means of the regulating disks, which can be changed in distance, whereby the pressure roller on the belt with pre-tensioning serves to compensate for the change in length of the belt and, on the other hand, presses the thread to be transported onto the belt.
  • a safe, defined transport of the thread is not guaranteed, since on the one hand the contact length between the pressure roller and the belt is extremely short and on the other hand the belt has a smooth surface, so that there is a risk of the thread slipping on the belt. This risk of slippage is particularly great when the pressure roller is relieved to change the axial spacing of the regulating disks in order to change the belt speed.
  • the relatively thin belt also tends to bend transversely to the longitudinal direction of the frame and promotes undesired slippage.
  • the object of the invention is to design a thread transport device of the type mentioned so that it enables safe, precisely defined thread transport.
  • the object is achieved according to the invention by the characterizing features of claim 1.
  • This arrangement and the defined assignment of the deflection roller and pressure roller further ensures that the relief of the belt practically has no effect on the guidance of the thread when the distance to the drive shaft is reduced and thus also reduces the risk of slipping.
  • the transverse ribs act in the same way, reducing bending of the belt transversely to the belt direction and thus also contributing to the secure placement of the thread on the belt.
  • the cross ribs also improve the bending properties of the belt, so that larger transmission ranges are possible.
  • the thread transport device thus enables safe, precisely defined thread transport.
  • the cross ribs can be present on the top and / or bottom of the belt. If the cross ribs are present on the upper side of the belt, the safe transport of the thread on the belt is further improved, in particular if a pressure roller, which has the counter profile to the transverse rib, interacts with the upper side of the belt.
  • the side flanks of the belt can be perpendicular to the belt plane.
  • the transverse stability of the belt and the possible driving force can be improved if the belt is designed according to claim 4.
  • a design according to claim 5 is particularly advantageous for individual thread transport devices with adjusting devices for the regulating disks.
  • An embodiment of the thread transport device according to claim 6 is more advantageous. This is particularly the case when several thread transport devices according to claims 9 and 10 are to be used and controlled together.
  • a further development according to claim 7 is suitable for this purpose.
  • the pivoting levers of the adjusting devices can then be fastened to a common pivotable axis on which an adjusting device common to all thread transport devices acts, as stated in claim 10.
  • An embodiment of the thread transport device according to claim 8 is also conceivable.
  • the thread transport device is suitable for various textile machines, such as knitting and weaving machines. It is particularly advantageous for a needle ribbon weaving machine in which the thread transport has to be adapted to different weaving conditions. In particular in the case of such needle ribbon looms with a plurality of weaving points, an embodiment according to claims 9 and 10 is advantageous.
  • FIGS. 1 and 2 show a first thread transport device with a belt 2, which is guided between 2 conical regulating disks 4, 6, which can be changed in their spacing, and a deflection roller 8.
  • the deflection roller 8 is arranged on an adjusting device 10, by means of which the center distance between the deflection roller 8 and the regulating disks 4, 6 can be adjusted.
  • the regulating disks 4, 6 used to change the rotational speed of the belt 2 are conical and carry the belts 2 between them.
  • the first regulating disk 4 is firmly connected to the drive shaft 12.
  • the regulating disk 6, on the other hand, is arranged on the drive shaft 12 so as to be displaceable in the axial direction, wherein it is prestressed against the fixed regulating disk 4 by means of a prestressing device 14.
  • a ring 16 is rotatably arranged on the drive shaft 12, which serves to support a helical spring 18, the other end of which is supported on the regulating disk 6.
  • the coil spring 18 rests on the bearing bush 20 of the regulating disk 6.
  • the deflection roller 8 is arranged on an actuating device 10 which is formed from a pivot lever 22 which is pivotably mounted on an axis 24.
  • a threaded spindle 26 is screwed into a threaded nut 28, which is pivotably mounted on a fixed arm 30.
  • the threaded spindle 26 is rotatably mounted in a bearing eye 32 which is arranged on the pivot lever 22.
  • the deflection roller 8 is also assigned a pressure roller 38, which is also attached to the pivot lever 22.
  • the thread 40 to be transported is first fed via the deflection roller 8 and then runs under the pressure roller 38, on the the thread 40 is removed again.
  • FIG. 3 shows a side view and in cross section of a first belt 2a, the continuous part 42 of which has a thickness d which is, for example, 2 mm.
  • a thickness d which is, for example, 2 mm.
  • transverse ribs 44 are formed, the height h of which is greater than the thickness d of the continuous part 42.
  • the height h of the transverse ribs 44 is, for example, 2.5 mm.
  • An insert 46 made of steel or cord, for example, is embedded in the continuous part 42 of the belt 2a.
  • the belt 2a provided on its underside 48 with the transverse ribs 44 can consist of Vulkollan R (a polyurethane from Bayer AG).
  • Its top side 50 is preferably provided with a wear-reducing layer.
  • the side flanks 52 of the belt 2a are beveled in accordance with the inclination of the conical regulating disks 4, 6.
  • the transverse ribs 44 can be arranged on the upper side 50.
  • the transverse ribs can contribute to grasping the thread, in particular when the pressure roller 38 is provided with a corresponding counter profile.
  • FIG. 4 shows a further embodiment of a belt 2b, the continuous part 54 of which is provided with transverse ribs 60 and 62 both on the upper side 56 and on the lower side 58, the dimensions being able to be analogous to those of the belt 2a in FIG. 3.
  • a belt is in turn provided with an insert 64 made of steel or cord, for example.
  • Such a belt is distinguished by particularly great transverse stability combined with great grip on its upper side 56.
  • FIG. 5 shows a further embodiment of an adjusting device 66 for the deflection roller 8 and the pressure roller 38 of a thread transport device corresponding to FIGS. 1 and 2.
  • the adjusting device in turn has a pivoting lever 68 which is pivotably arranged on the axis 24.
  • a worm wheel 72 is arranged on the axle 24 in a rotationally fixed manner via a wedge connection 70.
  • a worm 74 is rotatably mounted on the pivot lever 68, which carries an adjusting wheel 76 and meshes with the worm wheel 72. By turning the position wheel 76, the pivot lever 68 can be pivoted relative to the worm wheel 72.
  • FIG. 6 shows a further embodiment of an adjusting device for the deflection roller 8 and the pressure roller 38.
  • the deflection roller 8 and the pressure roller 38 are rotatably attached to a bearing block 80.
  • the bearing block 80 slides on a stationary guide 82 and is provided with a threaded shoulder 84 which interacts with a threaded spindle 86 which is rotatably mounted in the guide 82.
  • the bearing block 80 can move along the guide 82 and thus the center distance of the deflection roller 8 can be set.
  • FIG. 7 shows a further embodiment of a thread transport device in which a regulating disk 90 is fixedly connected to the drive shaft 92.
  • the second regulating disk 94 is arranged on the drive shaft 92 in a rotationally fixed manner by means of a wedge 96 and is displaceable in the axial direction.
  • the degree of displacement is determined by an adjusting device 98 which has an adjusting wheel 100 which is rotatably arranged in a fixed fork 102 of the machine frame 104.
  • the adjusting wheel which is designed as a nut, sits on a threaded rod 106 which is connected to the outer ring 108 of a ball bearing 110.
  • the inner ring 112 of the ball bearing is seated on the bushing 114 of the axially displaceable regulating disk 94.
  • the axial distance between the regulating disk 94 and the fixed regulating disk 90 can be set by adjusting the adjusting wheel 100.
  • the belt 2 guided over the regulating disks 90, 94 is in turn guided over a deflection roller 116, which is arranged on a holder 118 which is pivotably mounted on a fixed axis 120.
  • a torsion spring 124 arranged between the pivotable holder 118 and a ring 122 connected to the axle 120 serves to pretension the holder 118 and thus to tension the belt 2 via the deflection roller 116.
  • a pressure roller 126 is also fastened to the holder 118 and is connected to the belt 2 interacts.
  • FIG. 8 shows the arrangement of a plurality of thread transport devices F 1 , F 2 , F 3 , F 4 of the type shown in FIG. 1.
  • the regulating disks 4, 6 are fastened to a drive shaft 12 common to all thread transport devices.
  • the deflection rollers 8 and the pressure rollers 38 of each thread transport device are in turn arranged on pivoting levers 22 which are connected to an axis 127 in a rotationally fixed manner. In contrast to the illustration in FIG. 1, however, this is pivotably mounted in the machine frame 128.
  • the adjusting device 130 is common to all swivel levers 22 of the thread transport devices F to F 4 . For this purpose, it has a cantilever 132 which is connected to the axis 127 in a rotationally fixed manner.
  • the boom in turn carries the pivotable threaded nut 28 in which the threaded spindle 26 is arranged, which, in contrast to the embodiment according to FIG.
  • the threaded spindle 26 can be rotated by means of the adjusting wheel 36, as a result of which the axis 127 is pivoted via the arm 132 and adjusts the pivoting lever 22 together. In this way, the same rotational speed can be set on all thread transport devices F, to F 4 and thus the same transport speed for the threads 40 1 , 40 2 , 40 3 , 40 4 ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP84903479A 1983-10-06 1984-09-27 Fadentransportvorrichtung für eine textilmaschine Expired EP0160659B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84903479T ATE30749T1 (de) 1983-10-06 1984-09-27 Fadentransportvorrichtung fuer eine textilmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5435/83 1983-10-06
CH5435/83A CH661947A5 (de) 1983-10-06 1983-10-06 Fadentransportvorrichtung fuer eine textilmaschine.

Publications (2)

Publication Number Publication Date
EP0160659A1 EP0160659A1 (de) 1985-11-13
EP0160659B1 true EP0160659B1 (de) 1987-11-11

Family

ID=4293542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84903479A Expired EP0160659B1 (de) 1983-10-06 1984-09-27 Fadentransportvorrichtung für eine textilmaschine

Country Status (5)

Country Link
EP (1) EP0160659B1 (cs)
CH (1) CH661947A5 (cs)
DE (1) DE3408515A1 (cs)
IT (1) IT1176867B (cs)
WO (1) WO1985001525A1 (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1001188A3 (nl) * 1987-11-12 1989-08-08 Picanol Nv Werkwijze voor het regelen van de toevoer van inslagdraad bij weefmachines en inrichting die deze werkwijze toepast.
DE3820288C1 (en) * 1988-06-15 1989-08-24 Hartmut 5632 Wermelskirchen De Hinterholzer Thread-transport apparatus for textile machines
US4869412A (en) * 1988-08-29 1989-09-26 Bishop Bernard F Apparatus for guiding, holding or moving longitudinal elements
DE9420562U1 (de) * 1994-12-22 1995-02-16 Textilma Ag, Hergiswil Bandwebmaschine
IT1296959B1 (it) * 1997-12-12 1999-08-03 Fillattice S P A Dispositivo migliorato per il trasporto del filo di trama in un telaio tessile ad aghi
DE29909105U1 (de) * 1999-05-25 1999-07-22 Textilma Ag, Hergiswil Fadenfördervorrichtung
CN116288882B (zh) * 2023-05-22 2023-08-04 兴化市杰俊机械有限公司 纺织机用进线夹持装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709000A (en) * 1949-08-13 1955-05-24 Gen Motors Corp Tubing pull-out
US3170564A (en) * 1963-04-02 1965-02-23 Gatto Charles Conveyor apparatus
DE1896021U (de) * 1963-08-20 1964-07-02 Barmag Barmer Maschf Riemchen-lieferwerk.
FR1473248A (fr) * 1966-01-31 1967-03-17 Electricite De France Dispositif pour le déroulage mécanique de câbles, notamment de câbles souterrains
DE2307120A1 (de) * 1973-02-14 1974-08-22 Krupp Gmbh Bandabzug fuer strangfoermiges gut
CH565879A5 (cs) * 1973-11-27 1975-08-29 Mueller Jakob Forschungs Und F
CH591589A5 (cs) * 1974-03-12 1977-09-30 Iro Ab
US3922887A (en) * 1974-09-13 1975-12-02 Singer Co Positive yarn feeding system for circular knitting machine
IT1090378B (it) * 1977-01-17 1985-06-26 Sulzer Morat Gmbh Dispositivo su una macchina tessile per l'alimentazione di materiali filiformi,nastriformi o a striscia
FR2508426A1 (fr) * 1981-06-30 1982-12-31 Lignes Telegraph Telephon Dispositif de guidage d'une tige cylindrique et dispositif d'usinage de cable optique comportant un tel dispositif de guidage

Also Published As

Publication number Publication date
IT8423016A1 (it) 1986-04-05
DE3408515C2 (cs) 1992-05-07
WO1985001525A1 (fr) 1985-04-11
IT8423016A0 (it) 1984-10-05
EP0160659A1 (de) 1985-11-13
DE3408515A1 (de) 1985-04-25
IT1176867B (it) 1987-08-18
CH661947A5 (de) 1987-08-31

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