EP0387546B1 - Friktions-Fadenliefervorrichtung - Google Patents

Friktions-Fadenliefervorrichtung Download PDF

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Publication number
EP0387546B1
EP0387546B1 EP90103132A EP90103132A EP0387546B1 EP 0387546 B1 EP0387546 B1 EP 0387546B1 EP 90103132 A EP90103132 A EP 90103132A EP 90103132 A EP90103132 A EP 90103132A EP 0387546 B1 EP0387546 B1 EP 0387546B1
Authority
EP
European Patent Office
Prior art keywords
thread
drum
supply device
drums
frictional
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
EP90103132A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0387546A1 (de
Inventor
Alberto Gustavo Sarfati
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.)
Sobrevin Societe de Brevets Industriels
Original Assignee
Sobrevin Societe de Brevets Industriels
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 Sobrevin Societe de Brevets Industriels filed Critical Sobrevin Societe de Brevets Industriels
Priority to AT90103132T priority Critical patent/ATE82939T1/de
Publication of EP0387546A1 publication Critical patent/EP0387546A1/de
Application granted granted Critical
Publication of EP0387546B1 publication Critical patent/EP0387546B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B65H51/12—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements in spaced relation to provide a series of independent forwarding surfaces around which material is passed or wound
    • 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 friction thread delivery device according to the preamble of the main claim.
  • Such a friction thread delivery device is known from FR-A-853 570.
  • a friction thread delivery device of the type in question is also known from DE-C-31 25 962, wherein the thread coming from a thread supply winding winds around two drums arranged in parallel with one another and driven in the same direction, and from there into one of a thread processing machine upstream memory to enter. If multiple wraps are carried out on the two drums, there is a risk that adjacent layers of thread can overlap. This overlapping is favored by the rising and falling tension of the thread on the drums. If the thread take-off tension drops, the drums rotate without feeding the thread. Then the thread lies relatively loosely.
  • the object of the present invention is to design a generic friction thread delivery device in such a way that multiple loops are possible on the drums even with difficult threads, without the risk of thread layers overlapping one another.
  • the aforementioned partition walls are held on a stationary web which extends axially parallel to the adjacent drums in the distance region between them.
  • This also leads to a structurally advantageous embodiment.
  • the design of the intermediate walls as annular disks provides a simple possibility to create the space for the thread when it runs from one partial wrap of one drum to the partial wrap of the next drum. If you provide a thread deflecting roller adjacent to the drum surface, the position of the thread part wrap angle can be determined by its position. It is advantageous if this thread deflection roller is adjustable in its position.
  • a continuous change in the peripheral speed of the drum creates the optimal adaptation to the different thread qualities and per unit time of the draw lengths to be made available.
  • a further certain adaptation can be achieved in that the outer surface of the drum is radiation-roughened and then refined, preferably chrome-plated. This also determines the slip entrainment between the drum jacket surface and the thread.
  • a cover overlapping the drums and partitions is provided to prevent the thread from jumping over. The fact that thread layers can step over one another by jumping over the intermediate walls is thus extremely effectively prevented.
  • a measure has been taken to prevent excessive heating of a yarn or a corresponding ribbon, for example made of polypropylene.
  • the drum wall has a rib-like elevation running in the axial direction on one or more drum sections.
  • a favorable design is characterized by the fact that the rib-like elevation is formed by a rod inserted into the jacket wall.
  • a continuous rod corresponding approximately to the length of the drum, can be selected to achieve a particularly simple construction. Then it is possible to arrange the rod so that it can be displaced radially inwards against the action of the spring. Since the intermediate walls are penetrated by the drums and accordingly a gap remains between them and the drum wall, its size is selected so that it corresponds at least approximately to the thread size. Accordingly, no thread can get caught there either.
  • the trouble-free operation of the friction thread delivery device is not limited by a corresponding fault.
  • a time-delayed synchronous circuit of the drum drive for driving the associated weaving machine is provided.
  • the drum drive is switched off accordingly.
  • the drum drive is switched on in advance.
  • the friction thread delivery device has a machine frame designated as a whole by the number 1.
  • the latter has a horizontal base plate 2 and two vertical guides 3 extending from it.
  • these form a height-adjustable column for rotary drums 5, 6, which are located at the upper end of the carriage 4.
  • a precise alignment of the column can be carried out by means of threaded spindles 7 passing through the base plate 2.
  • the carriage 4 carries a flanged electric motor 8.
  • the motor shaft 9, which projects into the interior of the carriage, is equipped with a drive pulley 10, around which a drive belt 11 is placed.
  • the latter wraps around a pulley 13 mounted between drums 5, 6 and electric motor 8 on the slide 4 around a pin 12.
  • This pulley is preferably made in one piece with an intermediate disk 14 of larger diameter, which accordingly also rotates about the pin 12.
  • the belt 15 placed around the intermediate disk 14 drives the drums 5, 6 via disks 36, 37. The directions of rotation of the individual disks are illustrated with arrows in FIG. 2.
  • drums 5, 6, are free-floating circular cylindrical bodies, the axes of which lie in a common horizontal plane.
  • the drum 5 differs from the drum 6 by a shorter length.
  • the carriage 4 is also a carrier of a web 16 which extends in the interstices of the adjacent drums 5, 6, axially parallel to them, namely on the middle between both drum axes.
  • the length of the web 16 corresponds to the length of the longer drum 6.
  • the web 16 is a carrier of intermediate walls 17 and 18, which are designed in the form of annular disks.
  • the annular discs 17 are penetrated by the drum 5 and the annular discs 18 by the drum 6.
  • the ring openings 19, 20 of the intermediate walls 17, 18 correspond to the outer diameters of the drums 5, 6.
  • the annular disks or intermediate walls 17, 18 are dimensioned so large that they extend with their peripheral edge 21 or 22 to just in front of the lateral surface 38 of the adjacent drums 5, 6.
  • An easy assembly of the intermediate walls 17, 18 is made possible by the fact that they have radial cutouts 23, 24 into which the web 16 dips in a form-fitting manner.
  • Each drum 5, 6 is assigned five intermediate walls 17 and 18, respectively, in such a way that one intermediate wall 18 overlaps the other intermediate walls 17, in such a way that each of the drums 5, 6 forms regions a to h lying one behind the other for partial wrap by a thread F. .
  • the position of the regions is determined by the intermediate walls 17, 18 which are fixedly assigned to the web 16. Axial displacement of the washers is therefore not possible.
  • the partition walls are dimensioned such that the dimension x between the intersection of the overlapping partition walls is less than the diameter of the drums 5, 6.
  • the drum 5 is preceded by a thread brake carrier 25.
  • a thread brake 26 of known design sits on the latter. This passes the thread F in the direction of the arrow, which thread F is withdrawn overhead from a supply roll 27.
  • a holder 28 carries the supply roll 27. With regard to the holder 28, it is a push-on pin which is driven in the direction of the arrow against the pull-off direction.
  • the exemplary embodiment is a conical supply roll 27, the end of which facing the thread brake 26 is encompassed by a brake ring 29. Its flexibly designed fingers 30 facing the outer surface of the supply roll 27 counteract a balloon formation when the thread F is pulled off.
  • a thread brake 31 On the opposite side of the carriage 4 there is also a thread brake 31, which in turn is arranged downstream of the drum 6.
  • the thread arrives from this thread brake 31 at a processing station, for example a weaving machine.
  • the thread F runs to the drum 5 in the area a, touches this area a on the upper side only in a punctiform manner.
  • the thread runs from area a to area e of the other drum 6 and loops around it by about 180 °. From area e, the thread reaches area b of drum 5. After a partial wrap of this area b, the thread runs to area f of drum 6. After a partial wrap there, the thread becomes area c of drum 5 and from here after a partial wrap Area g of the drum 6 steered. After a partial wrap, the thread 6 then reaches the area d of the drum 5, loops around it and then traverses the area h of the drum 6 in the take-off direction y. There is therefore a zigzag course of the thread F.
  • the partition walls 17, 18 prevent that adjacent thread sections overlap.
  • the drums 5, 6 are constantly driven. As long as no force acts on the other side of the drum 6, as seen in the pull-off direction, the drums 5, 6 do not cause the thread F to be drawn off from the supply roll 27. If the thread coming from the delivery device is used, for example, as a weft thread in a weaving machine, the weft thread occurs when the weft thread is inserted a force on the thread F, which brings the thread in slippage to the drum surface of the drums 5, 6, so that the thread F is then withdrawn from the supply roll 27.
  • peripheral speed of the drums 5,6 corresponds to a multiple of the thread take-off speed, enough thread material is supplied so that a very low thread take-off tension results, which can be in the range from 100 to 300 g. With a decrease in the thread take-off tension, the slip entrainment is also reduced.
  • the drums 5,6 are driven in the same direction of rotation, as can be seen from the drawings. Furthermore, the pulleys 36,37 and the drums 5,6 you drive have the same diameter, so that the latter rotate at the same peripheral speed.
  • the drive can be designed so that the peripheral speed of the drums can be varied.
  • a suitable surface design of the drums ensures sufficient slippage when the thread pulling force occurs.
  • the outer surface 38 of the drums 5, 6 can be radiation-roughened and refined, preferably chrome-plated.
  • the drum has the reference number 32. It is driven in the direction of the arrow shown.
  • An arm 34 is pivotably seated on the drum axis 33 and carries at its free end a thread deflecting roller 35 adjacent to the drum jacket surface 38.
  • the position of the arm 34 and thus of the thread deflection roller 35 determines the dimension of the partial wrap angle of the drum 32.
  • the corresponding partial wrap angle alpha is greater than 90 °.
  • an unillustrated adjustment device can engage the arm 34.
  • the slip entrainment can be varied in a simple manner, so that the delivery device can be adapted to a wide variety of thread qualities.
  • the third embodiment of the friction thread delivery device illustrated in FIGS. 7-10 has a support column 40 in which the drum drive (not illustrated) is accommodated. Via a drive belt 41, pulleys 42, 43 are rotated in the same direction, which pulleys are firmly connected to the drums 44, 45.
  • the drums 44, 45 have the same length, that is to say that their front, exposed edges are aligned with one another.
  • a web 46 extends from the support column 40 and runs parallel to the drums 44, 45 and serves to hold intermediate walls 47, 48.
  • the latter are also designed in the form of ring disks, the ring openings of which are penetrated by the drums 44 and 45, respectively.
  • the ring openings provided in the intermediate walls are selected such that a gap 51 is formed between the drum jacket wall T and the intermediate walls, which gap corresponds at least approximately to the yarn thickness. This gap 51 runs concentrically to the drum jacket wall T.
  • the drum jacket wall T has on one or more drum sections a rib-like elevation 52 running in the axial direction.
  • this is formed by a rod 53 inserted into the drum jacket wall T, the peripheral surface of which protrudes beyond the drum jacket wall T and forms the board there.
  • a rod 53 with a circular cross section the length of which corresponds approximately to that of the drums 44, 45.
  • the rod 53 forming the rib-like elevation projects so far over the drums 44, 45 that it still lies within the gap 51 and at a distance from it the ring opening ends, so that no thread material can also squeeze.
  • rod sections could also be used which end in front of the partition walls 47, 48.
  • cover 54 covering the drums 44, 45 and the intermediate walls 47, 48.
  • the latter is U-shaped in cross section.
  • the web 55 of the U-profile extends in front of the end faces of the drums 44, 45 and the outer intermediate walls 47, 48, while the legs 56, 56 'of the U-profile extend to the outer edge of the intermediate walls 47, 48 and there one Protect the thread from jumping over from one drum area via the intermediate wall into the other drum area.
  • the thread F After the thread F has been drawn off, it runs through an adjustable thread brake 57 in the direction of the arrow and then loops around the drums 44, 45 in the zigzag course shown in FIG. 8. After passing through the partial area g ', the thread F leaves the friction through a thread eyelet 58 Thread delivery device.
  • the thread F does not slip.
  • the tension increases while the thread slips along with it.
  • the rod 53 forming the rib-like elevation 52 constantly ventilates the partial wraps of the thread F during the slip entrainment Avoid heating it too much, cf. Fig. 10. From this figure it can be seen that the thread is lifted from the drum jacket wall T in the corresponding area by the rib-like elevation 52.
  • a time-delayed synchronous circuit of the drum drive for driving the associated weaving machine is assigned to this friction thread delivery device.

Landscapes

  • Forwarding And Storing Of Filamentary Material (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Knitting Machines (AREA)
  • Sewing Machines And Sewing (AREA)
  • Transmission Devices (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Power Steering Mechanism (AREA)
EP90103132A 1989-03-11 1990-02-19 Friktions-Fadenliefervorrichtung Expired - Lifetime EP0387546B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90103132T ATE82939T1 (de) 1989-03-11 1990-02-19 Friktions-fadenliefervorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908012 1989-03-11
DE3908012A DE3908012A1 (de) 1989-03-11 1989-03-11 Liefervorrichtung fuer laufende faeden

Publications (2)

Publication Number Publication Date
EP0387546A1 EP0387546A1 (de) 1990-09-19
EP0387546B1 true EP0387546B1 (de) 1992-12-02

Family

ID=6376164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103132A Expired - Lifetime EP0387546B1 (de) 1989-03-11 1990-02-19 Friktions-Fadenliefervorrichtung

Country Status (12)

Country Link
US (1) US5141170A (cs)
EP (1) EP0387546B1 (cs)
KR (1) KR100189397B1 (cs)
CN (1) CN1022338C (cs)
AT (1) ATE82939T1 (cs)
BR (1) BR9001120A (cs)
CA (1) CA2011841A1 (cs)
CZ (1) CZ285549B6 (cs)
DE (2) DE3908012A1 (cs)
ES (1) ES2036851T3 (cs)
PT (1) PT93387A (cs)
RU (1) RU1804447C (cs)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131322A1 (de) * 1991-09-20 1993-03-25 Stoll & Co H Fadenliefervorrichtung
DE4324160A1 (de) * 1993-07-19 1995-01-26 Iro Ab Eintragsystem für eine Düsenwebmaschine
DE19712739A1 (de) * 1997-03-26 1998-10-01 Sipra Patent Beteiligung Fadenliefereinrichtung für intermittierenden Fadenverbrauch
NO324416B1 (no) * 1998-04-21 2007-10-08 Odim Asa Flerskaren tractionvinsj
KR100478655B1 (ko) * 2002-10-24 2005-03-25 일진에이테크 주식회사 권취기의 사인도 장치
CN106809693A (zh) * 2015-11-30 2017-06-09 衡阳腾飞内衣有限公司 一种内衣制作滚丝机
CN106957940A (zh) * 2017-05-03 2017-07-18 山东钢铁股份有限公司 一种喂线机用喂丝线固定装置
CN113998528B (zh) * 2021-11-30 2023-05-30 国网河南省电力公司桐柏县供电公司 一种输电线路用放线装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR853570A (cs) * 1940-03-22
US1482589A (en) * 1922-03-25 1924-02-05 Pacific J Thomas Thread spreader for doubling machines
BE476878A (cs) * 1939-04-07
US2536537A (en) * 1943-10-27 1951-01-02 Christiansen Christian Device for controlling the tension of thread or yarn
US2773588A (en) * 1954-05-07 1956-12-11 American Viscose Corp Tow roll
GB1129765A (en) * 1965-05-31 1968-10-09 Vyzk A Vyv Ustav Zd U Vseob St Improvements in or relating to circular knitting machines
FR2071546A5 (en) * 1969-12-31 1971-09-17 Verdol Mecaniques Yarn tensioner - for yarn let-off mechanism feeding ring spinner
US3945581A (en) * 1970-08-14 1976-03-23 Barmag Barmer Maschinenfabrik Aktiengesellschaft High-speed cross-winding device
DE2245869A1 (de) * 1972-09-19 1974-03-28 Karl Bous Verfahren und vorrichtung zum liefern und spannen von garnen mit einstellbarer, konstant bleibender fadenspannung
DE2453682A1 (de) * 1974-11-13 1976-05-20 Wirkmaschinenbau Karl Marx Veb Kettenwirkmaschine wie naehwirkmaschine zum herstellen von schusskettengewirken, insbesondere naehgewirken
GB1502027A (en) * 1975-02-04 1978-02-22 Iro Ab Thread storing and feeding device
DD136861B1 (de) * 1978-06-02 1981-08-26 Wirkmaschinenbau Karl Marx Veb Vorrichtung zur zufuehrung von faeden an textilmaschinen
BE889343A (fr) * 1981-02-04 1981-12-23 Bigelow Sanford Inc Systeme d'alimentation en fil sans tension
DE3147163C2 (de) * 1981-11-27 1985-07-25 Vsesojuznyj naučno-issledovatel'skij institut trikotažnoj promyšlennosti, Moskva Vorrichtung zur Fadenzuführung zum Maschenbildungssystem einer Wirkmaschine
EP0094099B1 (en) * 1982-05-12 1986-08-27 Aktiebolaget Iro Loom control system

Also Published As

Publication number Publication date
US5141170A (en) 1992-08-25
KR100189397B1 (ko) 1999-06-01
CN1045613A (zh) 1990-09-26
CS114190A3 (en) 1991-08-13
CZ285549B6 (cs) 1999-09-15
ES2036851T3 (es) 1993-06-01
PT93387A (pt) 1991-12-31
CN1022338C (zh) 1993-10-06
RU1804447C (ru) 1993-03-23
EP0387546A1 (de) 1990-09-19
CA2011841A1 (en) 1990-09-11
BR9001120A (pt) 1991-03-05
ATE82939T1 (de) 1992-12-15
DE59000519D1 (de) 1993-01-14
KR900014240A (ko) 1990-10-23
DE3908012A1 (de) 1990-09-13

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