EP0284782A2 - Contrôleur de noeuds pour fils et fibres - Google Patents

Contrôleur de noeuds pour fils et fibres Download PDF

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Publication number
EP0284782A2
EP0284782A2 EP88102859A EP88102859A EP0284782A2 EP 0284782 A2 EP0284782 A2 EP 0284782A2 EP 88102859 A EP88102859 A EP 88102859A EP 88102859 A EP88102859 A EP 88102859A EP 0284782 A2 EP0284782 A2 EP 0284782A2
Authority
EP
European Patent Office
Prior art keywords
monitor according
node monitor
passage opening
thread
walls
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.)
Ceased
Application number
EP88102859A
Other languages
German (de)
English (en)
Other versions
EP0284782A3 (fr
Inventor
Heinz Brunner
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.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
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 Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Publication of EP0284782A2 publication Critical patent/EP0284782A2/fr
Publication of EP0284782A3 publication Critical patent/EP0284782A3/fr
Ceased 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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/061—Mechanical slub catcher and detector
    • 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 knot monitor for yarns and threads, with a passage opening formed between two mutually adjustable parts with an adjustable cross-section for a yarn or a thread.
  • the invention has for its object to provide a node guard of the type mentioned in such a way that it itself forms little fiber debris and no fiber debris can accumulate on it and it forms a self-cleaning and effective monitoring element.
  • a knot guard of the type mentioned in the present invention in that the passage opening is formed between two rotating bodies, at least one of which is rotatably supported and at least one adjustable for changing the size of the passage opening and / or for inserting the thread relative to the other is stored.
  • the rotating body of rotation prevents thread abrasion and the accumulation of thread abrasion in the area of the passage opening of the knot monitor. There are no angular friction surfaces. Thick spots in the continuous yarn are reduced between the rolls by pressing them together.
  • the knot guard has the further advantage that it can also be more easily coupled to a knock-out device for the knitting machine than previously known knot catchers.
  • the passage opening can advantageously be formed between circular cylindrical lateral surfaces of the two rotating bodies and can be delimited on both sides by walls running perpendicular to the axes of rotation.
  • the lateral boundary walls for the passage opening can either be formed by end flanges of one of the two roller bodies or else by side arms or housing walls, between or on which at least one of the two roller bodies is mounted.
  • the thread can be introduced into the knot guard through a device slot next to a cantilevered reel body or after one of the reel bodies has been lifted off.
  • the roller body can expediently be overhung on a swivel arm or on a pivotable housing wall.
  • At least one of the interacting reel bodies can be mounted either on its own or with its swivel arm on an adjusting eccentric part, so that the mutual distance between the two reel bodies is changed when the eccentric part is adjusted .
  • the axis of at least one roller body can also be arranged so that it can be easily adjusted and locked in a guide slot.
  • a knot guard designed according to the invention can also be designed as a flexible shut-off device, in which, when a thread knot arrives, the knot cannot get stuck in the through-opening, which must lead to a thread break, but rather causes an adjustment of a reel body which is movably arranged against the restoring force, enlarging the through-opening, whereby the adjustment of the roll body can be determined by a stationary sensor of a switch-off device, which causes the knitting machine to be switched off immediately, similarly to a thread tension sensor.
  • the knot monitor can also be used like a thread guide for thread deflection because it has no edges like conventional account monitors.
  • the thread is advantageously monitored in this way and simultaneously guided in a certain direction.
  • the node monitor 10 shown in FIGS. 1 to 3 has a housing 12 fastened to a support arm 11 with a front housing wall 12.1, a rear housing wall 12.2 and an upper and lower housing wall 12.3 and 12.4.
  • the front housing wall 12.1 is pivotally mounted about an axis 13 running between the upper and lower housing walls 12.3 and 12.4 against the force of a screw torsion spring 14 pushed onto the axis 13, as shown in FIG. 3, around a thread 15 into one from the open housing end 12.5
  • a bearing pin 19 for the one roller 17 is fastened to the rear housing wall 12.2.
  • the other roller 18 has an eccentric bearing journal 20 which pivots about a bearing attachment 21 with an actuating axis 22 baren front housing wall 12.1 is anchored.
  • a scale disk 23 is clamped onto the actuating axis 22, on which the set roller distance of the passage opening 16 can be read relative to a marking arrow 24 located on the front housing wall 12.1.
  • An open slot 25 is formed in the upper housing wall 12.3 towards the open housing head side 12.5, which forms a boundary of the passage opening 16 of the knot monitor 10 to the roller width and which has a width in this boundary region which is smaller than the width of the two rollers 17 and 18
  • Such a lateral limitation of the passage opening to the roll width can also be arranged on the lower housing wall 12.4.
  • other thread guide elements can also be used, e.g. B. eyelets or brackets.
  • the slot 25 always ensures the correct thread position even when threading.
  • FIGS. 4 to 6 show a node monitor 30 with a similar housing design as in the embodiment according to FIGS. 1 to 3.
  • the front housing wall 32.1 of the housing 32 fastened to a support arm 31 is here around a central axle bolt 29 against the force of one the axle bolt pushed on torsion spring 34 can be pivoted in its plane parallel to the rigid rear housing wall 32.2 of the housing.
  • on the pivotable front housing wall 32.1 is one of the two rollers 37, 38 delimiting the thread passage opening 36, namely the roller 38, on an eccentric bearing journal 40 with an attachment shoulder 41, adjusting axis 42 and scales disc 43 arranged.
  • the other roller 37 is mounted on a pin 39 fastened to the rear housing wall 32.2 of the housing 32.
  • the two rollers 37 and 38 are profiled differently.
  • the roller 37 has flanges 37.1 at both ends, between which the second roller 38 dips with its outer surface in order to limit the passage opening 36 in the roller width.
  • a large knot present in the thread 35 does not have to get caught in the thread passage opening 36. Rather, it causes the roller 38 to pivot. This allows a thread rest 45 inserted into the housing 32 to be actuated with a normally open switching contact 46.
  • the actuation takes place by means of a switching pin 47 made of electrically insulating material fastened to the front pivotable housing wall 32.1 of the housing, which closes the switching contact 46 when the front housing wall 32.1 is pivoted according to FIG. 6 and thereby triggers the switching off of a textile machine to which the node monitor is assigned .
  • the knot monitor could also carry the rotating bodies delimiting the thread passage opening on simple swivel arms.
  • the axis of at least one of the rotating bodies could also be arranged so as to be adjustable and lockable in a guide slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Knitting Machines (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
EP88102859A 1987-03-28 1988-02-26 Contrôleur de noeuds pour fils et fibres Ceased EP0284782A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873710345 DE3710345A1 (de) 1987-03-28 1987-03-28 Knotenwaechter fuer garne und faeden
DE3710345 1987-03-28

Publications (2)

Publication Number Publication Date
EP0284782A2 true EP0284782A2 (fr) 1988-10-05
EP0284782A3 EP0284782A3 (fr) 1990-08-22

Family

ID=6324264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102859A Ceased EP0284782A3 (fr) 1987-03-28 1988-02-26 Contrôleur de noeuds pour fils et fibres

Country Status (5)

Country Link
US (1) US4916787A (fr)
EP (1) EP0284782A3 (fr)
JP (1) JPS63258375A (fr)
DD (1) DD268227A5 (fr)
DE (1) DE3710345A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831637A1 (de) * 1988-09-17 1990-04-05 Schlafhorst & Co W Aggregat aus einem oe-spinnautomaten und einer kannenwechselvorrichtung
DE19538312B4 (de) * 1995-10-14 2004-09-02 H. Stoll Gmbh & Co. Fadenkontrollvorrichtung für Flachstrickmaschinen
DE10008353A1 (de) * 2000-02-23 2001-09-06 Zimmer Ag Verfahren und Vorrichtung zum Feststellen von Verdickungen in einem laufenden Faden

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US577337A (en) * 1897-02-16 Tension device
GB235928A (en) * 1924-02-27 1925-06-29 Alfred Seeley Improvements in machines for winding yarn or thread on to bobbins or the like mounted on spindles
GB325153A (en) * 1929-03-23 1930-02-13 Frank Bauman Improvements in and relating to thread cleaners or clearers
GB614430A (en) * 1946-03-11 1948-12-15 Karl Watson Webb A device for detecting the unevenness or the variations of the thickness of thread, cord, yarn or like filamentary material
US2860704A (en) * 1956-01-11 1958-11-18 United States Steel Corp Automatic shear for cutting strip
CH351195A (de) * 1957-06-07 1960-12-31 Rieter Joh Jacob & Cie Ag Luntenüberwachungseinrichtung an einer Kannenablage
CH442800A (de) * 1966-09-06 1967-08-31 Peyer Siegfried Knotenwächter
CH502946A (de) * 1970-01-27 1971-02-15 Schweiter Ag Maschf Fadenreiniger
DE2528277A1 (de) * 1975-06-25 1977-01-13 Gustav Memminger Vorrichtung zum abstellen von garnverarbeitenden textilmaschinen
DE3136644A1 (de) * 1981-09-16 1983-03-31 Memminger Gmbh, 7290 Freudenstadt Verstellbarer knotenfaenger fuer textilmaschinen, insbesondere strickmaschinen

Also Published As

Publication number Publication date
DE3710345C2 (fr) 1989-10-12
EP0284782A3 (fr) 1990-08-22
DE3710345A1 (de) 1988-10-13
US4916787A (en) 1990-04-17
DD268227A5 (de) 1989-05-24
JPS63258375A (ja) 1988-10-25

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