EP0464378B1 - Dispositif fournisseur de fil - Google Patents

Dispositif fournisseur de fil Download PDF

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Publication number
EP0464378B1
EP0464378B1 EP91108994A EP91108994A EP0464378B1 EP 0464378 B1 EP0464378 B1 EP 0464378B1 EP 91108994 A EP91108994 A EP 91108994A EP 91108994 A EP91108994 A EP 91108994A EP 0464378 B1 EP0464378 B1 EP 0464378B1
Authority
EP
European Patent Office
Prior art keywords
drum
thread
delivery device
yarn
drums
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
EP91108994A
Other languages
German (de)
English (en)
Other versions
EP0464378A2 (fr
EP0464378A3 (en
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
Priority claimed from DE4021461A external-priority patent/DE4021461A1/de
Application filed by Sobrevin Societe de Brevets Industriels filed Critical Sobrevin Societe de Brevets Industriels
Publication of EP0464378A2 publication Critical patent/EP0464378A2/fr
Publication of EP0464378A3 publication Critical patent/EP0464378A3/de
Application granted granted Critical
Publication of EP0464378B1 publication Critical patent/EP0464378B1/fr
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
    • 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
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • 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 delivery device for running threads, in particular for feeding the same to thread-processing machines, such as for example for feeding the weft thread into a weaving machine, in which device the thread is fed tangentially to a drum connected to a rotary drive and again by a pulling force acting beyond the drum this is removed, with the thread only wrapping around a partial circumference of the drum rotating at a higher peripheral speed than the thread take-off speed, and can be brought into slipping along with the drum jacket surface via the pull-off force tangential to the drum, with at least two drums which are adjacent to one another and being axially parallel are subdivided by stationary partition walls that each of the drums forms a plurality of regions lying one behind the other in the drum axis direction for partial wrap through the thread such that the thread extends from the region of one drum to the region de r passes over to another drum.
  • An advantage of the known delivery device is that, while avoiding the stop-and-go mode of operation of the drum, a minimization of the thread take-off tension is achieved and that even with difficultly designed threads, multiple wraps on the drums are possible while largely preventing thread layers from overlapping.
  • the object of the invention is based on the object of developing a delivery device of the type in question in such a way that an optimization with regard to the mode of operation is achieved.
  • the object of the invention is achieved in that the drum jacket surface, in alignment with the plane of the intermediate walls, has a radially outwardly directed annular collar.
  • a delivery device type which is characterized by an optimal mode of operation.
  • Both the partitions and the ring collar of the drum jacket surface which are flush with them prevent with certainty that in the event of multiple wrapping of the drums, adjacent layers of thread can step over one another. Faults in thread take-off resulting therefrom are accordingly eliminated.
  • the height of the ring collar corresponds at least the thread thickness. A height of a few millimeters is preferably selected so that a wide variety of yarns can be processed with a single delivery device. If one leaves an annular gap between the ring collar and the intermediate wall, the size of which also corresponds at least approximately to the thread size, it is also avoided that thread material can get caught there. This further supports the optimal functioning of the delivery device.
  • the air baffle bar which is approximately radially oriented on the drum jacket surface, is also provided. This extends in the circumferential direction just behind the tangent point between the thread and the drum surface.
  • the air baffle creates an air flow that is directed away from the drum and accordingly presses against the thread layers in a way. This prevents the thread from being sucked into the gusset of the drums and from being wound onto one or the other drum.
  • the ring collars support the above-mentioned effect in that the air flow does not emerge sideways on the drums, but acts specifically on the thread layers. Fluidic and structural advantages result from providing the air baffle bar on an arm which can be pivoted towards the center of the drum.
  • the arrangement of two diametrically opposed arms with air baffle bars ensures that yarn material cannot be sucked into either the upper or lower gusset formed by the drums.
  • the thread delivery device has a support column 40 in which a drum drive, not shown, is accommodated. Via a drive belt 41, pulleys 42, 43 are rotated in the same direction, which pulleys are firmly connected to a drum 44, 45. With regard to the drums 44, 45, these are free-floating circular cylindrical bodies, the axes of which lie in a common horizontal plane and are arranged such that the drums 44, 45 are provided at a distance from one another. The drums 44, 45 have the same length such that their front, free edges are aligned with one another.
  • a web 46 extends from the support column 40 and runs parallel to the drums and serves to hold intermediate walls 47, 48.
  • the latter are designed in the form of ring disks, the ring openings of which are penetrated by the drums 44 and 45, respectively.
  • the drum jacket surface is provided with radially outwardly directed annular collar R which is aligned with the plane of the intermediate walls 47, 48.
  • the height of each ring collar R is at least as large as the material thickness of the thread F to be processed. In practice, this means that a few millimeters are selected for the height.
  • the aforementioned ring collars R form a gap 51 in connection with the ring openings of the intermediate walls 47, 48, which corresponds at least approximately to the thread diameter. This gap 51 runs concentrically to the ring collar R or to the drum casing wall T.
  • the aforementioned ring collars R are preferably made of the same material as the drum casing 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 a board there.
  • a rod 53 which is circular in cross section and whose Length corresponds approximately to that of the drums 44, 45. This means that it also passes through the ring collar R of each drum 44, 45. Accordingly, the rod 53 does not protrude beyond the ring collar in the radial direction, but is offset in the inward direction.
  • rod sections could also be used which extend between the ring collar R and end at the latter.
  • a cover 54 covering the drums 44, 45 and the intermediate walls 47, 48 is also provided.
  • 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 or 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 over the intermediate wall into the other drum area.
  • each drum jacket surface of each drum is associated with an approximately radially oriented air baffle 59, 60 such that it lies in the circumferential direction just behind the tangent point between the thread F and the drum jacket surface.
  • Each air baffle bar 59, 60 is seated on an arm 61 or 62 which can be pivoted in the direction of the center of the drums 44, 45.
  • the bearing point for the arm 61, 62 is formed by the supporting web 46 for the intermediate walls 47, 48, compare FIG. 4.
  • the arms 61 , 62 are diametrically opposite directed and designed identically, so that almost the same conditions exist.
  • the arms 61, 62 can be firmly clamped to the supporting web. The swiveling is then only necessary when adjusting the arms.
  • the aforementioned air baffle bars 59, 60 grind on the drum jacket surface and consist of felt of appropriate thickness. Therefore, they can briefly avoid contact with the rib-like elevations 52 in order to then return to the contact position with the drum jacket surface.
  • Each air baffle bar 59, 60 is composed of several short sections, which generally correspond to the distance between the partition walls 47, 48. Therefore, the air baffle bars 59, 60 with their sections fill the form between the ring collars R and the intermediate walls 47, 48.
  • 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 while avoiding excessive heating thereof, see FIG. 4. From this figure it can be seen that the rib-like elevation 52 of the thread from the drum jacket wall T im corresponding area is lifted off.
  • the thread delivery device can be assigned a time-delayed synchronous circuit of the drum drive for driving the associated weaving machine.
  • the ring collars R prevent the thread from being able to pass from one partial area to the other.
  • the partitions 47, 48 and the cover 54 also contribute to this.
  • the air baffle bars 59, 60 generate an air flow in the case of drums 44, 45 rotating in the direction of the arrow, which air flow is directed out of the gusset, ie away from the drum. This prevents the thread from getting into the gusset of the drums and being unwantedly wound onto one or the other drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Insulated Conductors (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (6)

  1. Dispositif de fourniture de fils en mouvement (F), en particulier pour les amener à des machines de traitement du fil, telles que par exemple pour introduction de la duite ou du fil de trame dans une machine à tisser, dispositif dans lequel le fil (F) est amené tangentiellement à un premier tambour (44, 45) relié à un entraînement de rotation et prélevé de celui-ci de nouveau, au moyen d'une force d'extraction agissant de l'autre coté du tambour (44, 45), le fil (F) n'enlaçant qu'une partie de la périphérie du tambour (44, 45) tournant à une vitesse périphérique supérieure à la vitesse d'extraction du fil et pouvant être entraîné par glissement par rapport à la surface d'enveloppe du tambour par l'intermédiaire de la force d'extraction orientée tangentiellement par rapport au tambour (44, 45), au moins deux tambours (44, 45) voisins, à axes parallèles, étant subdivisés au moyen de parois intermédiaire (47, 48) localement fixes, de manière que chacun des tambours (44, 45) constitue plusieurs zones, les unes derrière les autres dans la direction axiale du tambour, pour permettre l'enlacement partiel par le fil (F), de manière que ce fil (F) passe de la zone d'un premier tambour (44, 45) à la zone de l'autre tambour et/où la surface d'enveloppe de chaque tambour comporte une collerette annulaire (R), orientée radialement vers l'extérieur, alignée par rapport au plan des parois intermédiaires (47, 48).
  2. Dispositif de fourniture selon la revendication 1, une bande d'accumulation d'air (59, 60), orientée à peu près radialement, étant associée à la surface d'enveloppe de tambour et située dans la direction périphérique peu derrière le point de tangence entre le fil (F) et la surface d'enveloppe de tambour.
  3. Dispositif de fourniture selon l'une ou plusieurs des revendications précédentes, la bande d'accumulation d'air (59, 60) reposant sur un bras pouvant pivoter dans la direction du centre des tambours (44, 45).
  4. Dispositif de fourniture selon une ou plusieurs des revendications précédentes, le bras (59, 60) partant de la nervure support (46) des parois intermédiaire (47, 48).
  5. Dispositif de fourniture selon une ou plusieurs des revendications précédentes, deux bras (61, 62) diamétralement opposés, équipés de bandes d'accumulation d'air (59, 60) étant prévus.
  6. Dispositif de fourniture selon une ou plusieurs des revendications précédentes, la bande d'accumulation d'air (59, 60) étant constituée par un feutre frottant sur la surface d'enveloppe intérieure.
EP91108994A 1990-07-05 1991-06-01 Dispositif fournisseur de fil Expired - Lifetime EP0464378B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4021461A DE4021461A1 (de) 1989-03-11 1990-07-05 Liefervorrichtung fuer laufende faeden
DE4021461 1990-07-05

Publications (3)

Publication Number Publication Date
EP0464378A2 EP0464378A2 (fr) 1992-01-08
EP0464378A3 EP0464378A3 (en) 1992-03-04
EP0464378B1 true EP0464378B1 (fr) 1994-12-21

Family

ID=6409728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108994A Expired - Lifetime EP0464378B1 (fr) 1990-07-05 1991-06-01 Dispositif fournisseur de fil

Country Status (12)

Country Link
US (1) US5190231A (fr)
EP (1) EP0464378B1 (fr)
JP (1) JPH0620980B2 (fr)
CN (1) CN1026137C (fr)
AT (1) ATE115943T1 (fr)
BR (1) BR9102796A (fr)
CA (1) CA2046223A1 (fr)
CO (1) CO4180577A1 (fr)
CZ (1) CZ280391B6 (fr)
DE (1) DE59103965D1 (fr)
ES (1) ES2065581T3 (fr)
MX (1) MX173886B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324160A1 (de) * 1993-07-19 1995-01-26 Iro Ab Eintragsystem für eine Düsenwebmaschine
CN102251344A (zh) * 2010-12-24 2011-11-23 陆晓东 积极喂纱机构
CN104894709B (zh) * 2015-05-27 2017-08-18 厦门绫亚针织机械配件有限公司 送纱器滤纱装置
CN105442122B (zh) * 2015-12-18 2019-03-26 厦门绫亚针织机械配件有限公司 送纱器滤纱装置
CN107444994B (zh) * 2017-07-25 2023-08-01 杭州舜海光伏科技有限公司 收放绳装置及清扫设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476878A (fr) * 1939-04-07
US2381643A (en) * 1943-03-18 1945-08-07 American Viscose Corp Method and apparatus for handling filamentary material
US3957218A (en) * 1970-03-19 1976-05-18 Imperial Chemical Industries Limited Self threadable grooved rollers
AT389322B (de) * 1987-01-09 1989-11-27 Evg Entwicklung Verwert Ges Vorrichtung zum waermebehandeln eines kontinuierlich fortbewegten metalldrahtes
US4858839A (en) * 1988-04-11 1989-08-22 Niederer Kurt W Yarn tension control apparatus and method

Also Published As

Publication number Publication date
CO4180577A1 (es) 1995-06-07
JPH04226269A (ja) 1992-08-14
ATE115943T1 (de) 1995-01-15
EP0464378A2 (fr) 1992-01-08
CN1026137C (zh) 1994-10-05
US5190231A (en) 1993-03-02
CS203291A3 (en) 1992-02-19
DE59103965D1 (de) 1995-02-02
CN1058057A (zh) 1992-01-22
BR9102796A (pt) 1992-02-04
CZ280391B6 (cs) 1996-01-17
EP0464378A3 (en) 1992-03-04
JPH0620980B2 (ja) 1994-03-23
MX173886B (es) 1994-04-07
ES2065581T3 (es) 1995-02-16
CA2046223A1 (fr) 1992-01-06

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