EP0310820A2 - Appareil pour emmagasiner et délivrer du fil pour machines textiles, en particulier pour machines à tricoter - Google Patents

Appareil pour emmagasiner et délivrer du fil pour machines textiles, en particulier pour machines à tricoter Download PDF

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Publication number
EP0310820A2
EP0310820A2 EP88114653A EP88114653A EP0310820A2 EP 0310820 A2 EP0310820 A2 EP 0310820A2 EP 88114653 A EP88114653 A EP 88114653A EP 88114653 A EP88114653 A EP 88114653A EP 0310820 A2 EP0310820 A2 EP 0310820A2
Authority
EP
European Patent Office
Prior art keywords
thread
delivery device
adjustable
brake
storage
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.)
Granted
Application number
EP88114653A
Other languages
German (de)
English (en)
Other versions
EP0310820A3 (en
EP0310820B1 (fr
Inventor
Heinz Brunner
Karl-Jürgen Sauter
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 EP0310820A2 publication Critical patent/EP0310820A2/fr
Publication of EP0310820A3 publication Critical patent/EP0310820A3/de
Application granted granted Critical
Publication of EP0310820B1 publication Critical patent/EP0310820B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D04B15/44—Tensioning devices for individual threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/16—Braked elements rotated by material
    • 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
    • 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
    • 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 storage and delivery device for textile machines, in particular knitting machines, with a housing with a drivable thread storage drum, on which the thread fed and removed thread is placed in several turns, and with a knot guard connected upstream of the thread storage drum and an adjustable thread brake.
  • So-called feeders of the type mentioned above are known in manifold embodiments.
  • the thread is fed to these devices via thread guide eyelets, on which thread deflection already takes place.
  • An adjustable plate brake is predominantly provided as the thread brake arranged on the device housing.
  • a knot guard can be installed upstream, predominantly knot guards with whom the thread is being used running gap is limited at least on one side by a rigid part. All of these parts, depending on the thread material processed, form a more or less large thread abrasion, i.e. they form fiber fluff, which can contaminate the organs mentioned themselves or is undesirably passed on to the thread storage drum, where fiber rings can form from the fluff.
  • the invention has for its object to provide a thread storage and delivery device of the type mentioned in such a way that it has as few organs for thread control and thread guidance on the thread inlet side and is designed so that fluff formation is largely prevented.
  • the thread brake which is arranged on the device housing immediately after a thread guide, is combined with the knot guard and this combination consists of two freely rotatable axially parallel rollers, one of which is adjustable against the other against brake spring force, that the maximum displacement of the adjustable roller is limited by an adjustable stop and that the thread is deflected over the roller mounted on an immovable axis.
  • the thread storage and delivery device designed according to the invention is therefore provided with a combination of a thread brake and a knot monitor, which itself produces practically no thread abrasion and whose rotating rollers prevent the accumulation of fiber fluff.
  • the arrangement of the thread brake rollers immediately behind a thread guide element, which can advantageously be at the end of a thread guide tube, has the advantage that this thread guide element, which is usually designed as a rigid thread guide eyelet, is largely released from its thread guide function, so that hardly any fluff can form on it.
  • the roller of the combined brake and thread monitor device which is mounted on an immovable axis, forms a thread-protecting deflection element which also absorbs the thread tension forces, which may have change peaks, so that changes in thread tension cannot influence the effect of the thread brake.
  • the thread storage and delivery device designed according to the invention also facilitates operation, in particular if the rollers of the combined brake and knot guard device are overhung, so that a thread that is advanced through the thread guide tube to the rollers by means of air is laterally between the two Rolls in.
  • the adjustable roller of the combined brake and knot guard device can be mounted at the free end of a swivel arm arranged in the device housing, on which the spring, which is adjustable in its force effect and can also be arranged in the housing, acts and on which also acts the adjustable stop arranged in the device housing.
  • the braking force and the maximum passage gap between the two rollers can be changed independently.
  • two separate set screws can advantageously be provided in the device housing, the starting point of the brake spring and the stop point expediently having a different distance from the fulcrum the swivel arm can be arranged.
  • the brake spring can be set here at a point that gives a favorable torque on the swivel lever.
  • the thread can be fed radially and tangentially to the thread storage drum from the combined brake and thread monitor device.
  • the thread sensor arrangement usually arranged between the thread brake and the thread storage drum with a feeler lever resting on the running thread is only an insignificant cause of fluff.
  • Fluff fed through the thread guide tube is practically completely lifted off the thread on the rollers of the combined brake and knot monitor device.
  • the thread storage drum is therefore fed predominantly fluff-free thread.
  • the combined brake and knot guard device creates organs that outperform braking devices previously used by suppliers with regard to the uniformity of the braking force and also bring improvements over previously upstream knot guards, which formed an additional fluff formation point.
  • FIG. 1 shows an elongated device housing 10 of the thread storage and delivery device, which is designed as a hollow body in a manner not shown, and which has a recess 11 in the vicinity of its one end, into which a mounting rail 12 of a textile machine engages.
  • the device housing 10 is clamped on the mounting rail 12 by means of a clamping screw 13.
  • a thread storage drum 14 is arranged on the underside of the device housing 10 and is fixedly connected to a shaft, not shown, which is guided vertically through the device housing 10 and is mounted in the device housing.
  • two pulleys 15 and 16 are mounted, which can be coupled in a known manner by means of an axially adjustable coupling disk 17 arranged between the two pulleys 15 and 16, optionally with the shaft and thus with the thread storage drum 14.
  • two thread guide brackets 18 and 19 are arranged one behind the other in the direction of thread passage behind the thread storage drum 14, via which the thread 20 discharged tangentially from the thread storage drum 14 is guided and between which a sensor in the form of a swivel lever mounted in the device housing 10 is guided on the thread 34 rests, which belongs to a known thread monitoring device. If the swivel lever 34 falls out of its position shown in FIG. 1 with the thread 20 missing, a switch of the control part of the device is actuated, via which the textile machine is switched off.
  • a combined thread brake and knot monitor device 21 is arranged in the free end region of the device housing 10, which is explained in more detail below in connection with FIGS. 2 to 4.
  • the device 21 is located on the underside of the device housing 10.
  • the thread is fed through a thread guide eyelet 22 directly in front, which is arranged at the end of a vertical housing passage channel, which is formed at least in sections by a plug-in sleeve (FIG. 2) into which the End of a thread guide tube 24 can be inserted.
  • the combined thread brake and knot monitor device has two interacting, axially parallel cylindrical rollers 25 and 26 or rollers with a smooth surface, each of which is floating and freely rotatable on a journal 27 or 28.
  • the journal 27 for the one roller 25 is attached to the device housing 10.
  • the journal 28 for the other roller 26 is attached to the free end of a cranked lever 29 which is pivotable about an axis 30 in the device housing 10.
  • the roller 26 mounted on the swivel lever 29 is, viewed in the axial direction of the thread guide eye 22 in front, arranged at a greater center distance from the thread guide eye 22 than the rigidly mounted other roller 25, the circumference of the rigidly mounted roller 25 projecting at least approximately to the longitudinal axis of the thread guide eye 22 so that the thread 20 arriving through the thread guide tube 24 runs onto the roller 25 practically without touching the thread guide eyelet 22, which at the same time forms a deflection roller for the thread.
  • two threaded bores are formed side by side, which are each occupied by a set screw 31 or 32. Both threaded holes extend into the area of the horizontally extending section 29.1 in FIG. 2 of the cranked pivot lever 29 accommodated in a slot of the device housing 10.
  • a helical compression spring 33 is arranged, which on the one hand on the section 29.1 of the pivot lever 29 and on the other hand on the Set screw 31 is supported. With its inner end 32.1, the adjusting screw 32 in the other threaded bore forms a stop that limits the pivoting movement of the cranked pivoting lever 29.
  • the tension force of the helical compression spring 33 can be adjusted, which acts on the pivot lever 29 and thereby determines the braking force which is exerted on the thread 20 passing between the two rollers 25 and 26.
  • the other set screw 32 with its stop end 32.1 determines the maximum gap 34 shown in FIG. 3, which is formed between the two rollers 25 and 26 can, if a knot 35 contained in the thread 20 forces the two rollers 25 and 26 apart. If the node 35 is thicker than the width of the set gap 34, it cannot pass the two rollers 25 and 26.
  • the two rollers 25 and 26 form a knot guard here.
  • a thread break monitor is arranged in a known manner, which has a feeler 36 resting on the thread 20 running to the thread storage drum 14.
  • the thread 20 on the feeler lever 36 according to FIG. 1 can undergo a deflection or according to FIGS. 2 and 3 no deflection.
  • the thread 20 passes through a thread guide bracket 37 in front of the thread storage drum 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Knitting Machines (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP88114653A 1987-10-07 1988-09-08 Appareil pour emmagasiner et délivrer du fil pour machines textiles, en particulier pour machines à tricoter Expired - Lifetime EP0310820B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733797 1987-10-07
DE3733797A DE3733797C1 (de) 1987-10-07 1987-10-07 Fadenspeicher- und -liefervorrichtung fuer Textilmaschinen,insbesondere Strickmaschinen

Publications (3)

Publication Number Publication Date
EP0310820A2 true EP0310820A2 (fr) 1989-04-12
EP0310820A3 EP0310820A3 (en) 1989-05-10
EP0310820B1 EP0310820B1 (fr) 1991-12-11

Family

ID=6337741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114653A Expired - Lifetime EP0310820B1 (fr) 1987-10-07 1988-09-08 Appareil pour emmagasiner et délivrer du fil pour machines textiles, en particulier pour machines à tricoter

Country Status (8)

Country Link
US (1) US4898337A (fr)
EP (1) EP0310820B1 (fr)
JP (1) JPH01221553A (fr)
DD (1) DD282894A5 (fr)
DE (1) DE3733797C1 (fr)
ES (1) ES2028966T3 (fr)
SU (1) SU1738091A3 (fr)
TR (1) TR23510A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3924883A1 (de) * 1989-07-27 1991-01-31 Horst Paepke Fadenliefervorrichtung fuer textilmaschinen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578771B1 (fr) * 1991-04-05 1999-12-29 Metcal, Inc. Instrument pour inciser, ablater et coaguler des tissus
ITBS20020108A1 (it) * 2002-11-25 2004-05-26 Sangiacomo Spa Sistema di controllo della presenza dei fili alimentati agli aghi in
CN111379069B (zh) * 2020-03-24 2021-06-22 海宁市万路针织有限公司 纱线断线可卷绕的导纱筒装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB857424A (en) * 1958-02-08 1960-12-29 Burton Engineering Company Bri Device for detecting and indicating knots in yarns, threads and the like
GB1069166A (en) * 1964-10-21 1967-05-17 Flight Refueling Ltd Improvements in and relating to yarn clearing devices
DE3136644A1 (de) * 1981-09-16 1983-03-31 Memminger Gmbh, 7290 Freudenstadt Verstellbarer knotenfaenger fuer textilmaschinen, insbesondere strickmaschinen
DE3431410A1 (de) * 1983-09-14 1985-03-28 Maschinenfabrik Benninger AG, Uzwil Fadenbremsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362920A (en) * 1943-01-08 1944-11-14 Harry W Moore Unreeling device
US3490710A (en) * 1967-07-31 1970-01-20 Fouquet Werk Frauz & Planck Automatic thread delivery device for textile machines
DE3515104C1 (de) * 1985-04-26 1986-10-02 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Vorrichtung zur zwangsweisen Zulieferung von Elastomerfaeden an Textilmaschinen
ES8704217A1 (es) * 1986-06-23 1987-04-01 Jumberca Sa Perfeccionamientos en los alimentadores de hilo a maquinas textiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB857424A (en) * 1958-02-08 1960-12-29 Burton Engineering Company Bri Device for detecting and indicating knots in yarns, threads and the like
GB1069166A (en) * 1964-10-21 1967-05-17 Flight Refueling Ltd Improvements in and relating to yarn clearing devices
DE3136644A1 (de) * 1981-09-16 1983-03-31 Memminger Gmbh, 7290 Freudenstadt Verstellbarer knotenfaenger fuer textilmaschinen, insbesondere strickmaschinen
DE3431410A1 (de) * 1983-09-14 1985-03-28 Maschinenfabrik Benninger AG, Uzwil Fadenbremsvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3924883A1 (de) * 1989-07-27 1991-01-31 Horst Paepke Fadenliefervorrichtung fuer textilmaschinen

Also Published As

Publication number Publication date
JPH01221553A (ja) 1989-09-05
EP0310820A3 (en) 1989-05-10
EP0310820B1 (fr) 1991-12-11
DE3733797C1 (de) 1989-04-06
JPH0223620B2 (fr) 1990-05-24
DD282894A5 (de) 1990-09-26
US4898337A (en) 1990-02-06
SU1738091A3 (ru) 1992-05-30
ES2028966T3 (es) 1992-07-16
TR23510A (tr) 1990-02-14

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