EP2952615A1 - Verfahren und eine fadentrennvorrichtung zum klemmen und trennen eines fadens - Google Patents

Verfahren und eine fadentrennvorrichtung zum klemmen und trennen eines fadens Download PDF

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Publication number
EP2952615A1
EP2952615A1 EP15170528.2A EP15170528A EP2952615A1 EP 2952615 A1 EP2952615 A1 EP 2952615A1 EP 15170528 A EP15170528 A EP 15170528A EP 2952615 A1 EP2952615 A1 EP 2952615A1
Authority
EP
European Patent Office
Prior art keywords
thread
piston
clamping
punch
slide
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.)
Withdrawn
Application number
EP15170528.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gernot SCHÄFFLER
Javier-Orlando Ricaurte-Rubio
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2952615A1 publication Critical patent/EP2952615A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft 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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/16—Yarn-severing arrangements, e.g. for cutting transfer tails; Separating of roving in flyer
    • 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 method and a thread separating device for clamping and separating a thread, wherein the thread is inserted into a separation channel, clamped at two nips and then torn, and the thread is clamped at a distance which is greater than the average fiber length.
  • the object of the present invention is thus to provide a method and a corresponding thread separating device for clamping and separating a thread, with which the thread can be separated reliably and repeatable and the method and the device are simple and inexpensive to optionally equip each spinning station with it can.
  • the thread is introduced into a separation channel, clamped at two clamping points and then torn, wherein the thread is clamped at a distance which is greater than the average fiber length.
  • the thread is fixed at the two clamping points immediately before the separation, so that no further thread piece can be tightened in the area between the two clamping points.
  • the distance between the two clamping points does not have to correspond to the distance of the largest fiber length, it is much more important that the thread length between the two clamping points is greater than the fiber length. Accordingly, the thread is deflected between the two clamping points and before its clamping, and only then clamped.
  • the fact that the thread is deflected between the two clamping points before its clamping and only then clamped, can be influenced by the length of the deflection to different fiber lengths. So it is sufficient for yarns with short fiber lengths, the deflection To make less and in yarns in which long fiber lengths are spun, the deflection and thus the thread loop can be increased. The arrangement of the terminal points does not have to be changed. The resulting device for thread separation can therefore be made very simple.
  • the thread is clamped by means of spring force and / or pneumatically and / or electrically.
  • This stamp are usually used, which press on a counter surface and thereby pinch the thread.
  • the operation of the stamp can be done in a particularly simple embodiment by means of a spring.
  • the stamp can also be operated pneumatically or electrically.
  • the thread is first clamped by means of spring force and then pneumatically or electrically. Even if the spring force is usually sufficient to fix the thread accordingly, the further support by pneumatic or electrical means, a secure clamping of the thread accomplish, without this could slip through the terminal points.
  • the thread is deflected by means of a slider and placed over a particular curved anvil.
  • the slider is preferably located between the two later terminal points and forms the loop of the thread between the two terminal points in the desired length, which is greater than the fiber length.
  • the fact that the thread is placed over a particular curved anvil, the thread is gently prepared for the subsequent separation. The separation point is thereby also defined and prevents tearing of the thread at a non-desired, for example, sharp point of the deflection.
  • the thread is deflected in a preferred embodiment of the invention by means of the slider after the clamping of the thread beyond its clamping length and thereby separated.
  • the slider thus has in addition to forming the thread loop on another function. First, it deflects the thread from its rectilinear course in the separation channel to form a thread loop which is larger than the fiber length, then the thread is clamped at the clamping points and by further movement of the slider, the thread is separated by the adhering fibers are pulled apart using the slider.
  • the slider is moved in the direction of the thread and thereby also moves a punch and a piston.
  • a structurally very simple design can be achieved.
  • the slider deflects the thread and the punch holds the thread firmly on the anvil.
  • the stamp one or two clamping points is formed by the interaction with the anvil, which fix the thread.
  • the slider is, however, provided for the movement of the thread to deflect this and then cut through.
  • the piston is preferably pressed against the punch and thereby clamps the thread.
  • the separating channel is assigned a piston, a punch and an anvil and a slide.
  • the punch cooperates with the anvil for clamping the thread at the two nips and the slider is movable transversely to the thread between the two nips so as to form a thread loop and in particular to sever the thread. Due to the interaction of the corresponding components, a very easily operable thread separating device is provided. It causes a separation of the thread, without a complex setting or control would be required for the thread-separating device.
  • the thread separating device can thereby be made very compact.
  • the separation of the thread without tearing the fibers is still possible by the thread lying between the two nips forms a thread loop, which is less than the fiber length of the thread. This ensures that no fibers rupture, but the separation of the thread by sliding apart of the individual fibers, which are each clamped only at a nip occurs.
  • the piston, the punch and / or the slider are driven by spring force and / or pneumatically and / or electrically.
  • a schematic energy acts on the piston, punch and slider to extend and separate the thread as a spring moves the components back to their home position. This ensures that even without pneumatic support, the piston, the punch and the slider are in the retracted starting position and only reach the thread separation position when activated.
  • a successive actuation of the individual components piston, punch and slide to effect, without the applied pressure would have to be changed.
  • By simply applying an overpressure to the thread-separating device the three components are gradually extended. After switching off and venting the overpressure causes one or more springs that the three components are moved back to their original position.
  • the piston, the punch and the slider move linearly in a direction of movement towards the thread.
  • all three components can be formed like a cylinder and correspondingly simple, in particular pneumatic, are controlled.
  • the piston has a guide for the slider and / or the punch.
  • the parts are slaughtered and lead each other. By a particular pneumatic actuation, they can thus be moved very easily.
  • the slider is guided inside and the plunger outside the piston, then again a very simple construction is created.
  • the components are coordinated and can according to their arrangement by means of Spring force and / or pneumatically operated.
  • the springs for extending or retracting the components are each guided on the other components, so that additional components are not or hardly required.
  • the piston is guided in a housing, a simple element is likewise created in order to be able to produce a compact thread-separating device.
  • the housing can simultaneously serve to supply compressed air, in particular to actuate the piston and the slide.
  • the thread can lay under the anvil without it being damaged.
  • the separation can be carried out very accurately between the two clamping points on the anvil.
  • the anvil has an opening for receiving the thread and the slider, the slider as well as the thread to be separated are advantageously guided in order to achieve a defined separation point.
  • a spring is arranged between piston and piston and / or between piston and slide and / or between piston and housing for moving punch, piston and / or slide in their initial position or in the clamping position, the respective spring is advantageously guided and held, without additional components would be required.
  • a movement stop for the slide is arranged on the piston, in particular the position of the slide in the extended state is defined.
  • the size of the thread loop is determined as well as the separation of the thread between the two terminal points.
  • FIG. 1 is a thread-cutting device 1 with a thread 2 shown as a schematic sectional view.
  • the thread-separating device 1 has a housing 3 and a separation channel 4.
  • the thread 2 is inserted into the separation channel 4, for example by sucking or threading.
  • a compressed air connection 5 is arranged, with which compressed air can be introduced into a cavity 6 of the housing 3.
  • a slide 7 and a piston 8 is arranged in the cavity 6, a slide 7 and a piston 8 is arranged.
  • the slider 7 has a slider head 9 and a sword 10.
  • a seal 11 which is arranged in the slide head 9, the slide head 9 seals against an inner side of the piston 8, in particular in the region of a piston head 12 off.
  • a spring 13 is further arranged, which holds the slider head 9 spaced from a central part 14 of the piston 8 in a largely relaxed state.
  • the spring is arranged in an interior of the piston 8.
  • the sword 10 of the slider 7 protrudes through the central part 14 therethrough.
  • the piston 8 has in its interior a guide 15 on which the slide head 9 and its seal 11 are guided.
  • the slide head 9 can be moved linearly against the spring force of the spring 13 when compressed air via the compressed air connection 5 penetrates into the cavity 6. In this case, the spring 13 is compressed. As soon as the pressure in the cavity 6 decreases, the spring 13 moves the slider head 9 back to the starting position.
  • the piston head 12 is sealed in the cavity 6 by means of a seal 16 against a guide 17.
  • the piston head 12 is linearly movable along the guide 17 against the force of a spring 18. Due to the different surfaces of the slide head 9 and the piston head 12, the slider head 9 is pressed against the force of the spring 13 to a stop upon exposure of the cavity 6 with compressed air first. Then, the slider 7 is moved together with the piston 8 against the force of the spring 18 along the guide 17.
  • a punch 20 is arranged at the lower end of the piston 8.
  • the punch 20 is guided linearly on a guide 21 of the housing 3.
  • a further guide 22 is arranged, which serves to guide the piston 8.
  • Stamp 20 and piston 8 are tensioned with a spring 23 against each other.
  • a stop 24 are punch 20 and piston 8 connected to each other.
  • the punch 20 is moved linearly downwards together with the piston 8 and the slider 7. As soon as the plunger 20 abuts an anvil 25 of the separation channel 4, the piston 8 is moved further against the spring 23 until the piston 28 abuts against a stop 26 of the plunger 20.
  • FIG. 2 is enough compressed air in the cavity 6 has been constructed via the compressed air connection 5 to completely compress the spring 13 and to move the slide head 9 to its end position in the interior of the piston 8.
  • the piston 8 and the punch 20 are still in their starting position.
  • the sword 10 of the slide 7, however, is already extended so far that it directs the lying in the separation channel 4 thread 2 in a separation opening 30 of the rounded anvil 25.
  • the thread 2 is placed around the curves of the anvil 25. He is still not clamped and can therefore be tracked with respect to the required length.
  • FIG. 3 is shown how in the sequence of the piston 8 is moved.
  • the piston 8 is guided along the guide 17 down.
  • the cavity 6 becomes larger.
  • the spring 18 is compressed by the pressure in the cavity 6.
  • the punch 20 moves in the direction of the anvil 25 and finally clamps at terminal points 31 on both sides of the separation opening 30 the thread 2.
  • the clamping points 31 lie in a distance I, which is less than the length L of clamped in the form of a loop Thread 2.
  • the length L of the loop can be influenced by a choice of different lengths of swords 10.
  • the piston 8, together with the slide 7, is pushed further down, as in FIG FIG. 4 is shown.
  • the punch 20 and the piston 8 moves along the guide 22.
  • the spring 23 is compressed.
  • the sword 10 of the slider 7 is in its maximum extended position. This position is greater than the length L of the thread.
  • the sword 10 therefore severed the thread 2 within the separation opening 30 in two halves L / 2.
  • the thread length L is longer than the staple length of the thread 2, preferably even longer than the longest fiber in the thread.
  • the length L of the loop is at least 1.2 to 1.8 times the staple length. Therefore, not the individual fibers, but the thread 2 are separated by the only clamped at one point fibers slide past each other by avoiding the sword 10 of the slider 7.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP15170528.2A 2014-06-04 2015-06-03 Verfahren und eine fadentrennvorrichtung zum klemmen und trennen eines fadens Withdrawn EP2952615A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014107846.2A DE102014107846A1 (de) 2014-06-04 2014-06-04 Verfahren und eine Fadentrennvorrichtung zum Klemmen und Trennen eines Fadens

Publications (1)

Publication Number Publication Date
EP2952615A1 true EP2952615A1 (de) 2015-12-09

Family

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Application Number Title Priority Date Filing Date
EP15170528.2A Withdrawn EP2952615A1 (de) 2014-06-04 2015-06-03 Verfahren und eine fadentrennvorrichtung zum klemmen und trennen eines fadens

Country Status (4)

Country Link
EP (1) EP2952615A1 (zh)
JP (1) JP2015229817A (zh)
CN (1) CN105293186A (zh)
DE (1) DE102014107846A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107879191A (zh) * 2017-10-30 2018-04-06 安徽明都电力线缆有限公司 一种断线报警装置
CN109678007A (zh) * 2018-12-04 2019-04-26 中国航空工业集团公司北京航空精密机械研究所 一种绕线装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007985A1 (en) * 1969-03-08 1970-09-24 Winding machine yarn cutter
US3854356A (en) * 1973-07-17 1974-12-17 Amf Inc Thread cutting and clamping means
US4488466A (en) * 1982-09-07 1984-12-18 Seal Tech Corp. Apparatus for cutting sheet material
JPH0889681A (ja) * 1994-09-28 1996-04-09 Brother Ind Ltd ミシンの糸切り装置
US6523488B1 (en) * 1999-07-22 2003-02-25 Orange County Industrial Sewing Machine Co., Inc. Cutting device for elongated materials
EP1520824A2 (de) * 2003-10-04 2005-04-06 Saurer GmbH & Co. KG Vorrichtung zum Aufwickeln einer Fadenreserve und einer Kreuzspule auf eine Spulenhülse

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718062B2 (ja) * 1986-09-16 1995-03-01 豊和工業株式会社 粗糸切断方法
IT1239336B (it) * 1990-02-23 1993-10-20 Savio Spa Dispositivo e procedimento per la preparazione del capo del filo per l'avviamento o la ripresa della filatura open-end
DE10008208A1 (de) * 2000-02-23 2001-08-30 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Schneiden eines Fadens
DE10139072B4 (de) * 2001-08-09 2009-12-17 Oerlikon Textile Gmbh & Co. Kg Serviceaggregat zum Wiederanspinnen von Arbeitsstellen einer Offenend-Spinnmaschine
DE10348895A1 (de) * 2003-10-15 2005-05-19 Wilhelm Stahlecker Gmbh Verfahren zum Vorbereiten des Wiederherstellens eines Spinnvorganges
WO2009061310A1 (en) * 2007-11-05 2009-05-14 Yidi Carlos Jr Device for thermal cutting of a fabric sheet into ribbons
CN202881605U (zh) * 2012-10-29 2013-04-17 浙江恒强科技股份有限公司 横机新型剪纱线和夹纱线装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007985A1 (en) * 1969-03-08 1970-09-24 Winding machine yarn cutter
US3854356A (en) * 1973-07-17 1974-12-17 Amf Inc Thread cutting and clamping means
US4488466A (en) * 1982-09-07 1984-12-18 Seal Tech Corp. Apparatus for cutting sheet material
JPH0889681A (ja) * 1994-09-28 1996-04-09 Brother Ind Ltd ミシンの糸切り装置
US6523488B1 (en) * 1999-07-22 2003-02-25 Orange County Industrial Sewing Machine Co., Inc. Cutting device for elongated materials
EP1520824A2 (de) * 2003-10-04 2005-04-06 Saurer GmbH & Co. KG Vorrichtung zum Aufwickeln einer Fadenreserve und einer Kreuzspule auf eine Spulenhülse

Also Published As

Publication number Publication date
DE102014107846A1 (de) 2015-12-17
JP2015229817A (ja) 2015-12-21
CN105293186A (zh) 2016-02-03

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