EP0192821B1 - Liefervorrichtung für laufende Fäden - Google Patents

Liefervorrichtung für laufende Fäden Download PDF

Info

Publication number
EP0192821B1
EP0192821B1 EP85112946A EP85112946A EP0192821B1 EP 0192821 B1 EP0192821 B1 EP 0192821B1 EP 85112946 A EP85112946 A EP 85112946A EP 85112946 A EP85112946 A EP 85112946A EP 0192821 B1 EP0192821 B1 EP 0192821B1
Authority
EP
European Patent Office
Prior art keywords
storage body
thread
light
delivery device
receiver
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
EP85112946A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0192821A1 (de
Inventor
Ermete Riva
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 AT85112946T priority Critical patent/ATE31705T1/de
Publication of EP0192821A1 publication Critical patent/EP0192821A1/de
Application granted granted Critical
Publication of EP0192821B1 publication Critical patent/EP0192821B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • 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
    • D03D47/36—Measuring and cutting the weft
    • D03D47/361—Drum-type weft feeding devices
    • D03D47/367—Monitoring yarn quantity on the drum
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/18—Throwing or slinging toys, e.g. flying disc toys
    • 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

Definitions

  • the invention relates to a delivery device for running threads, with a storage body, to which the thread runs in the circumferential direction and from which the thread is withdrawn overhead and on which a certain adjustable number of thread turns is stored as a supply quantity between the feed point and the end of withdrawal, for determining the On the basis of the number of thread turns, a light barrier is provided which scans the surface of the storage body and controls the rotary drive for the thread feed.
  • the light barrier is composed of a transmitter and a receiver in such a way that the light emitted by the transmitter strikes a mirror of the storage body, is reflected by this mirror and is directed to the receiver.
  • the outer surface itself can also be designed to be reflective.
  • a disadvantage of this configuration is the fact that the light barrier can also be influenced by interference from daylight or the like, which then leads to incorrect switching of the rotary drive.
  • the object of the invention is to provide a delivery device with such a light barrier, which largely responds only to the light emitted by the transmitter.
  • the reflection principle is replaced by the light guide principle from one point on the circumference to an adjacent point.
  • the cross-sectional area of the light guide can be considerably smaller than the reflection area in the prior art. Interference caused by extraneous light, reflections etc. are therefore largely excluded.
  • the light guide can be made from a monoblock, e.g. consist of plexiglass or glass or be composed of several parts.
  • the support piece can be designed so that it can be installed in the storage body in a structurally advantageous manner.
  • the use of such a support piece is particularly advantageous when the storage body is stationary, to which a circumferential thread eyelet is assigned.
  • the support piece is designed as a curved piece.
  • the shape of the arc piece is such that the end faces of the optical fibers are arranged adjacent. This has the advantage that both transmitter and receiver of the light barrier can be accommodated in a common housing combined with a simplified structure.
  • the end faces of the optical fibers lie in two adjacent rods adjustably assigned to the storage body in order to vary the outer surface of the storage body in the area of the thread winding point.
  • the bars therefore have a double function. On the one hand, they serve to vary the winding conditions. On the other hand, they are still carriers of the optical fibers. They provide a sufficiently large fastening area for the ends of the optical fibers. Furthermore, the end faces of the optical fibers move with the adjustment of the rods.
  • the storage body is a rotatable one
  • a plurality of arc pieces are provided one behind the other in the circumferential direction of the storage body in such a way that their spacing from one another is smaller than the opening cone coming to the light barrier transmitter and receiver. This means that after the storage body has come to a standstill in an arbitrary angular position, the light emitted by the transmitter is always directed to the receiver via an arc.
  • the support piece consists of two concentrically arranged boards and the light guide fibers between the receiving boards.
  • Aluminum is preferably used for the boards.
  • the optical fibers are protected between these boards, which contributes to an increase in stability.
  • the delivery device has an electric motor 2 flanged to a housing 1 and forming the rotary drive. Another indirect drive could also be provided.
  • Whose motor shaft not shown in detail, is rotatably connected to a thread eyelet carrier 3.
  • the incoming thread F enters a central channel of the motor shaft and from there to the thread eyelet 4 of the thread eyelet carrier 3, which rotates in the direction of the arrow x shown in FIG. 2.
  • the rotary drive is associated with a braking device, which is not illustrated in detail but is known in such delivery devices.
  • the motor shaft of the electric motor 2 is the carrier of a storage body 5.
  • a storage body 5 is a standing storage body.
  • it has a jacket wall 6 designed as a drum, which merges into an end wall 7 at the end of the delivery device on the discharge side.
  • the trigger-side end of the jacket wall 6 is covered by a spherical ring head surface 8.
  • the latter is assigned a brake ring 10 equipped with bristles 9, which in turn sits on a boom 11. It is attached to the housing 1 by means of an annular flange 12.
  • the end of the arm 11 facing the ring head surface 8 carries at a bend 13 a thread take-off eye 14 which is coaxial to the axis of the storage body 5 and is arranged at a distance in front of the ring head surface 8.
  • the end of the jacket wall 6 facing the thread eyelet carrier 3 merges into a conical widening 16 via an annular groove 15.
  • the pitch angle of this conical extension is approx. 45 °.
  • a parallel section 17 adjoins the conical extension 16 and is overlapped by the thread eyelet carrier 3.
  • the storage body 5 is assigned rods 18 arranged in the same angular distribution, which partly lie in grooves 19 of the jacket wall 6 and protrude beyond them.
  • the ends 22 of the rods 18 adjoining the angular groove 20 engage in slots 21 of the conical widening 16 extending from the grooves 19.
  • the rods are supported with these ends 22 on radially directed fingers 23 of an adjusting disk 24.
  • the rods 18 with the disk 24 and fingers 23 can be displaced simultaneously in the direction of the arrow illustrated in FIG. 3.
  • the latter is also accessible from the ring head surface 8.
  • An adjustment of the disc 24 in the direction of the arrow causes the rods 18 to pivot about a pivot point located near the ring head surface. In both cases, the winding conditions in the area of the thread feed point are varied.
  • the storage length in the exemplary embodiment is less than the length of the storage body 5 itself.
  • the light barrier 27 has a housing 28. This is the carrier of a transmitter 29 and receiver 30 of the light barrier. Both the transmitter 29 and the receiver 30 extend axially parallel to the storage body 5.
  • the light barrier transmitter 29 has light-emitting diodes 31 which are arranged in rows next to one another and emit modulated light which can be adjusted in terms of their light intensity. Each light-emitting diode 31 is assigned its own sensor 32 of the light barrier receiver 30.
  • a support piece 34 is provided on the storage body 5.
  • the latter is designed as an arc piece and consists of two concentric optical fibers 35 lying between each other between receiving boards 36 and 37.
  • Aluminum can serve as material for the boards 36, 37, for example.
  • the light guide fibers 35 are arranged in such a way that their end faces 35 ′, 35 ′′ lying next to one another in rows are exposed to the outer surface of the storage body Photoelectric switch receiver 30 facing.
  • the end sections of the curved piece are embedded in slots 18 'of two adjacent rods 18 in such a way that the end faces 35', 35 "terminate with the lateral surface of the rods 18. Accordingly, the end faces 35 ', 35" of the rods shifted when the rods were adjusted Optical fibers 35.
  • the light intensity measured by the light barrier receiver 30 is initially relatively large, so that the rotary drive works at an increased speed.
  • the thread supply quantity V increases, the light intensity measured by the light barrier receiver 30 decreases along with a reduction in the rotational speed of the rotary drive. Due to the constant thread draw-off, however, the light intensity increases again with a renewed increase in the speed of the thread eyelet carrier 3. It is therefore not necessary to stop the rotary drive completely. This prevents tension peaks that lead to thread breakage.
  • the light response threshold is shifted along with it. This results in an increase in the speed associated with an increase in the thread supply on the storage body.
  • the light barrier is in a ready-to-operate position in every rotational position of the storage body.
  • a light barrier can also be used, which does not have to extend over the entire length of the memory.
  • the light barrier can then be designed to be adjustable relative to the storage body. In such a case, the delivery device works according to the start / stop principle.

Landscapes

  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Knitting Machines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Wire Processing (AREA)
  • Advancing Webs (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Medicinal Preparation (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Transmission Devices (AREA)
EP85112946A 1985-02-23 1985-10-11 Liefervorrichtung für laufende Fäden Expired EP0192821B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85112946T ATE31705T1 (de) 1985-02-23 1985-10-11 Liefervorrichtung fuer laufende faeden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3506489 1985-02-23
DE3506489A DE3506489C1 (de) 1985-02-23 1985-02-23 Fadenliefervorrichtung

Publications (2)

Publication Number Publication Date
EP0192821A1 EP0192821A1 (de) 1986-09-03
EP0192821B1 true EP0192821B1 (de) 1988-01-07

Family

ID=6263447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112946A Expired EP0192821B1 (de) 1985-02-23 1985-10-11 Liefervorrichtung für laufende Fäden

Country Status (16)

Country Link
US (1) US4653701A (enrdf_load_stackoverflow)
EP (1) EP0192821B1 (enrdf_load_stackoverflow)
JP (1) JPH0635301B2 (enrdf_load_stackoverflow)
KR (1) KR940000104B1 (enrdf_load_stackoverflow)
CN (1) CN1003365B (enrdf_load_stackoverflow)
AT (1) ATE31705T1 (enrdf_load_stackoverflow)
BR (1) BR8506038A (enrdf_load_stackoverflow)
CA (1) CA1258049A (enrdf_load_stackoverflow)
CS (1) CS254989B2 (enrdf_load_stackoverflow)
DE (2) DE3506489C1 (enrdf_load_stackoverflow)
ES (1) ES8701124A1 (enrdf_load_stackoverflow)
GR (1) GR852746B (enrdf_load_stackoverflow)
IN (2) IN165816B (enrdf_load_stackoverflow)
MX (1) MX162388A (enrdf_load_stackoverflow)
PT (1) PT81497B (enrdf_load_stackoverflow)
SU (1) SU1463137A3 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9002031D0 (sv) * 1990-06-06 1990-06-06 Iro Ab Anordning vid avkaennings- och/eller analyssystem foer fournissoer
US5211347A (en) * 1990-06-29 1993-05-18 Sobrevin Societe De Brevets Industriels-Etablissement Thread feed device
DE19508758A1 (de) * 1995-03-10 1996-09-12 Iro Ab Liefervorrichtung
EP0824610B1 (en) * 1995-05-08 2001-01-31 Heinrich Fabschitz Apparatus for the control of the rotational speed of a driving unit for a yarn windings storage drum
EP2993260B1 (en) * 2014-09-05 2017-04-19 L.G.L. Electronics S.p.A. Yarn feeder with rotary storage drum and yarn-unwinding sensor
CN106435965A (zh) * 2016-12-10 2017-02-22 无锡银联齿轮传动机械有限公司 储纬器用梭鼓
CN106592092B (zh) * 2016-12-28 2018-04-13 江南大学 一种纱线超低速间歇式运动传感器及其工作方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262847B (de) * 1961-10-31 1968-03-07 Sobrevin Soc De Brevets Ind Et Laengenmessvorrichtung fuer laufende Faeden
CH439161A (de) * 1965-06-25 1967-06-30 Sulzer Ag Webmaschine mit Schussfadenzwischenspeicher
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
ES360019A1 (es) * 1968-01-20 1970-06-16 Reiners Dispositivo para el control fotoelectrico de material fili-forme.
US3843069A (en) * 1971-09-28 1974-10-22 Wesco Industries Corp Yarn feeding and storage device for textile producing machine
US4010908A (en) * 1974-07-29 1977-03-08 Owens-Corning Fiberglas Corporation Method and apparatus for handling linear elements
CH616902A5 (enrdf_load_stackoverflow) * 1976-10-28 1980-04-30 Sulzer Ag
CH623545A5 (enrdf_load_stackoverflow) * 1977-01-17 1981-06-15 Iro Ab
DE2743749C3 (de) * 1977-09-29 1984-10-11 SIPRA Patententwicklungs-und Beteiligungsgesellschaft mbH, 7000 Stuttgart Fadenspeicher- und -liefervorrichtung für Textilmaschinen
US4325520A (en) * 1978-01-31 1982-04-20 Sulzer Brothers Limited Apparatus for storing filamentary material
IT1135172B (it) * 1981-01-26 1986-08-20 Roy Electrotex Spa Dispositivo elettrico di azionamento di apparecchi alimentatori di filo per macchine tessili

Also Published As

Publication number Publication date
ATE31705T1 (de) 1988-01-15
BR8506038A (pt) 1986-12-16
IN165816B (enrdf_load_stackoverflow) 1990-01-20
PT81497A (de) 1985-12-01
SU1463137A3 (ru) 1989-02-28
CS254989B2 (en) 1988-02-15
KR940000104B1 (ko) 1994-01-05
ES8701124A1 (es) 1986-12-01
GR852746B (enrdf_load_stackoverflow) 1986-03-14
IN166936B (enrdf_load_stackoverflow) 1990-08-11
KR870006256A (ko) 1987-07-10
JPS61197370A (ja) 1986-09-01
ES548649A0 (es) 1986-12-01
DE3506489C1 (de) 1986-08-28
CN1003365B (zh) 1989-02-22
EP0192821A1 (de) 1986-09-03
MX162388A (es) 1991-05-06
CN85108405A (zh) 1986-08-20
JPH0635301B2 (ja) 1994-05-11
US4653701A (en) 1987-03-31
CA1258049A (en) 1989-08-01
DE3561309D1 (en) 1988-02-11
PT81497B (pt) 1987-09-18
CS769785A2 (en) 1987-06-11

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