EP2314742A2 - Agrégat de compactage pour un banc d'étirage destiné à dissiper des fibres à empiler - Google Patents

Agrégat de compactage pour un banc d'étirage destiné à dissiper des fibres à empiler Download PDF

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Publication number
EP2314742A2
EP2314742A2 EP20100009610 EP10009610A EP2314742A2 EP 2314742 A2 EP2314742 A2 EP 2314742A2 EP 20100009610 EP20100009610 EP 20100009610 EP 10009610 A EP10009610 A EP 10009610A EP 2314742 A2 EP2314742 A2 EP 2314742A2
Authority
EP
European Patent Office
Prior art keywords
roller
compaktierungsaggregat
output
guide
drafting
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Withdrawn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
EP20100009610
Other languages
German (de)
English (en)
Other versions
EP2314742A3 (fr
Inventor
Joachim Diedrich
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile Components 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 Oerlikon Textile Components GmbH filed Critical Oerlikon Textile Components GmbH
Publication of EP2314742A2 publication Critical patent/EP2314742A2/fr
Publication of EP2314742A3 publication Critical patent/EP2314742A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/56—Supports for drafting elements
    • D01H5/565—Top roller arms

Definitions

  • the invention relates to a Compakt michsaggregat for a drafting system for warping staple fibers according to the preamble of claim 1.
  • Draw frames for warping staple fibers are widely used in the textile industry and are used on various textile machines.
  • the work stations of ring spinning machines are equipped with drafting systems which draw a roving unwound from a roving bobbin into a high-finned sliver, which is subsequently provided with a twist and wound onto a spinning cop as a finished yarn.
  • Such drafting systems usually have three machine-length, driven by a machine end side drive at different rotational speeds, spaced arranged lower rollers, and each three associated, arranged in a pivotally mounted pendulum carrier top rollers.
  • the resting during the spinning operation with a predetermined contact pressure on the driven lower rollers and frictionally driven by these upper rollers form with the associated lower rollers roller pairs that ensure due to their different rotational speeds that the submitted roving is warped when passing through the drafting system.
  • such drafting systems have an input, a center and an output roller pair, with the area between the input and center roller pairs forming a so-called biasing field, while the area between the middle and output roller pairs acts as the main drafting field.
  • the supplied roving is warped in the drafting to the desired fineness and leaves the drafting at the nip of the pair of delivery rollers as a relatively wide, up to 50 times warped sliver.
  • This relatively wide sliver is then acted upon by a spinning spinning cop in conjunction with a ring traveler of the relevant job with spin rotation and thereby twisted into a finished yarn.
  • a drafting system in which to the between the input and the Outgoing roller pair arranged delay zone connects to a compression zone, which is equipped with a pneumatically operated sliver compacting device.
  • This known pneumatic sliver compacting device has a suction duct which can be pressurized with negative pressure, the suction slit of which is covered by a circulating sieve belt, and a driven clamping roller resting on the sieve belt. That is, the screen belt, on which the stretched sliver is guided, is frictionally driven by the pinch roller, which in turn is connected to the réelleoberwalze in sliver running direction.
  • a disadvantage of this known pneumatic sliver compacting device is not only their relatively complex and thus costly construction, but also the relatively high energy demand of this device due to the constantly required negative pressure.
  • a drafting system is described with a pivotally mounted pendulum carrier, which, as usual, is equipped with input, middle and Popeberwalzen and has additional additional pinch rollers in the output upper rollers.
  • a mechanical compression element is arranged, which is acted upon for example by a spring element in the direction of the output lower roller.
  • the mechanical compacting element has a fiber guide slot which tapers in the direction of the sliver, and during the spinning operation ensures that the stretched sliver is bundled as it passes through the compacting element.
  • a compression zone is provided following a draft zone, in which a Compakt istsaggregat is arranged. That is, even in this drafting system, the articulated to the pivotally mounted pendulum carrier compaction unit pinch rollers and a mechanical compression element. The likewise pivotally mounted pinch roller is acted upon by a spring element in the direction of the output lower roller, while the mechanical compression element with radial and axial play on a holder fixed to the pendulum carrier is arranged and permanently magnetically applied in the direction of the output sub-roller. That is, in a housing surrounding the mechanical compacting element, permanent magnet pieces are arranged which, in conjunction with the steel output sub-roller during spinning, provide for proper positioning of the compactor on the output sub-roller.
  • the mechanical compaction element has lateral guide lugs which slide cleanly on the output sub-roller during the spinning process.
  • Compaktierungsaggregaten there is a risk that the mechanical compression element, especially if the drafting is closed improperly damaged. That is, in these known Compakt michsaggregaten with laterally arranged on the mechanical compression element guide approaches the approaches are before closing the drafting gravity-related often so unfavorably positioned just above the output bottom rollers that there is a risk that the guide approaches when closing the drafting between the Ninoberwalze and the Jam the output sub-roller, and damage it because it can not dodge properly.
  • the present invention seeks to further develop a Compakt michsaggregat for a drafting system for warping staple fibers so that damage to the mechanical compression element are largely avoided even when not quite appropriate closing of the drafting system.
  • the inventive design and arrangement of the guide lugs on Compakt michsaggregat ensures that during the closing of the drafting between the guide lugs and a Popeunterwalze always results in a first point of contact, seen in the direction of fiber travel, behind a first imaginary line connecting, which is when placing the Guiding approaches extends to the output sub-roller between the central longitudinal axis of a Popeberwalze and the central longitudinal axis of the output sub-roller.
  • the Compakt michsaggregat is thereby always acted upon during the closing of the pendulum arm immediately with an effective in the direction of rotation of the output upper roller torque and pivots gently on the output lower roller along sliding, in an operating position.
  • the guide approaches are in an advantageous embodiment part of a made of a ceramic material compression element (claim 3).
  • a compacting element made of such a material is characterized not only by a high wear resistance and thus long life, but is also relatively inexpensive to manufacture.
  • a proven manufacturing process for example, from a mixture of a sinterable substance, preferably an oxide ceramic powder, and a binder by injection molding, first a first oversize crude form created. This crude form is then converted by debinding into a porous intermediate form, which is then brought by sintering in a post-processing poor final shape.
  • the guide lugs are preferably arranged laterally on the compressor element and have a convexly curved support and guide surface.
  • the guide approaches are in the relief position of Compakt istsaggregates with its convex curved support and guide surface on the output sub-roller and slide when pressurized immediately on the output sub-roller in the direction of load position.
  • the convexly curved support and guide surface preferably adjoins a concavely curved bearing surface, wherein the curvature of the bearing surface is matched to the diameter of the output sub-roller. This means that the guide lugs slide safely over the output sub-roller when closing the drafting system and position the compaction unit in the compression zone correctly by means of the bearing surface.
  • the guide projections are part of a housing of the Compakt michsaggregates on which the pinch rollers are fixed. That is, the housing of the Compakt michsaggregates, which is made for example of a plastic, has on its underside a guide lug, which ensures when closing the drafting system that the Compakt michsaggregat is already advantageously positioned at the first contact with the output lower roller. That is, the leadership approach to the housing ensures that the housing and thus the Compakt michsaggregat slides gently closing the drafting unit on the output lower roller in the predetermined operating position in which the Compakt michsaggregat is properly positioned in the compression zone when closing the drafting system.
  • the mechanical compression element is in an advantageous embodiment, preferably defined by means of a corresponding holder, so with radial and axial play on a housing of the Compakt michsaggregates that it is prepositioned between the Congressoberwalze and a pinch roller.
  • the compression element is subjected to a permanent-magnetic force component in the direction of the output sub-roller and then slides virtually without gaps on the output sub-roller.
  • the arrangement of permanent magnet inserts for example in the guide lugs of the compression element, this ensures that the compression element always slides safely and almost gap-free on the output lower roller with closed drafting.
  • FIG. 1 - 5 two different embodiments of a Compakt michsaggregats invention are shown.
  • the illustrated and described embodiments of a compaction unit are preferably used on drafting systems of ring spinning machines in connection with the warping of staple fibers.
  • such drafting units 1 comprise an input roller pair 2, a middle roller pair 3 and an output roller pair 4, wherein the roller pairs 2, 3, 4 are respectively formed by bottom rollers 2u, 3u, 4u and associated top rollers 2o, 3o, 4o.
  • the generally machine-length for example, by a machine end side arranged drive and a corresponding gear assembly with different rotational speeds driven lower rollers 2u, 3u, 4u are stored on (not shown) punching on the machine frame of the ring spinning machine, while the top rollers 2o, 3o, 4o, the are frictionally driven during the spinning operation of the lower rollers, each arranged in a pendulum carrier 5, which in turn is fixed via a support 28 to a support rod 12 fixed to the machine frame.
  • Such pendulum carrier 5 can be positioned by means of a lever 6 in the positions “drafting system raised” or “drafting system loaded”, with a third position “drafting system relieved” adjusts when the top rollers rest on the bottom rollers without the lever 6 in its closed position stands.
  • drafting zone 30 in which the supplied roving 26 is warped up to 50 times its input length.
  • the drafting zone 30 is divided into the intermediate delay zone 7 lying between the pair of input rollers 2 and the middle roller pair 3 and the main drafting zone 8 located between the middle roller pair 3 and the pair of delivery rollers 4.
  • the delay zone 30 is adjoined by a compression zone 9, in which a Compakt michsaggregat 10 is arranged.
  • the Compakt michsaggregat 10 has a biased by a spring element 15 housing 25 for pinch rollers 11.
  • one or two compression elements 13 are also defined by a corresponding holder with radial and axial play.
  • the mechanical compression element 13 laterally arranged guide lugs 14 which are equipped with a convex curved support and guide surface 23 and a subsequent bearing surface 24.
  • the guide lugs 14 are equipped with permanent magnet inserts 40 and arranged on the compression element 13, that during the closing of the drafting 1 between the guide lugs 14 and the output lower roller 4u results in a first contact point 17, seen in the fiber direction F, behind a first imaginary connecting line 18 , wherein the connecting line 18 results in the placement of the guide lugs 14 on the output lower roller 4u between the central longitudinal axis 20 of a réelleoberwalze 4o and the central longitudinal axis 19 of the output lower roller 4u.
  • the Figure 3 shows the situation with the drafting system 1 closed, that is, the pendulum carrier 5 is positioned by the lever 6 in the "loaded” position.
  • the Compakt istsaggregat 10 is in this case in the loading position II, in which a roving 26 is stretched in the drafting zone 30 and bundled in the drafting zone 9.
  • the correspondingly treated roving exits the drafting system 1 after passing through a nip between the starting lower roll 4u and pinch roll 11, and is then subjected to the required rotation by a spinning cop (not shown) which drives a ring traveler.
  • FIGS. 4 and 5 a further embodiment of an advantageous Compakt michsaggregates 10 is shown.
  • the housing 25 of the compaction assembly 10 is modified to form a guide lug 16. That is, the housing 25 is extended so far that when closing the drafting 1, as in Figure 4 shown, between the guide lug 16 of the housing 25 of the Compakt michsaggregates 10 and the output lower roller 4u forms a first contact point 17, viewed in sliver direction F, behind an imaginary first connecting line 18, wherein the connecting line 18 here also the shortest connection between the central longitudinal axis 20 of the réelleoberwalze 4o and the central longitudinal axis 19 of the output sub-roller 4u represents.
  • the Fig. 5 shows the plug-in unit 1 at a slightly later time at which the guide lug 16, against the force of the spring element 15, has already slid a certain distance on the output lower roller 4u.
  • This sliding of the guide lug 16 on the output lower roller 4u continues until the guide lugs 14 of the compression element 13, acted upon by the magnetic force of the permanent magnet inserts 40 disposed in the guide lugs 14, slide over the output lower roller 4u, gently engaged in an operative position and there via the guide lugs 14 are positively locked on the output sub-roller 4u.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP20100009610 2009-10-24 2010-09-15 Agrégat de compactage pour un banc d'étirage destiné à dissiper des fibres à empiler Withdrawn EP2314742A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910050581 DE102009050581A1 (de) 2009-10-24 2009-10-24 Compaktierungsaggregat für ein Streckwerk zum Verziehen von Stapelfasern

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102009050581 Previously-Filed-Application 2009-10-24

Publications (2)

Publication Number Publication Date
EP2314742A2 true EP2314742A2 (fr) 2011-04-27
EP2314742A3 EP2314742A3 (fr) 2014-03-26

Family

ID=43543820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100009610 Withdrawn EP2314742A3 (fr) 2009-10-24 2010-09-15 Agrégat de compactage pour un banc d'étirage destiné à dissiper des fibres à empiler

Country Status (2)

Country Link
EP (1) EP2314742A3 (fr)
DE (1) DE102009050581A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013170346A (ja) * 2012-02-17 2013-09-02 Oerlikon Textile Components Gmbh 粗糸をドラフトするドラフト装置
CN112739860A (zh) * 2018-10-12 2021-04-30 特吕茨施勒有限及两合公司 用于纤维条运输设备的罗拉和以此配备的纤维条运输设备
CN112877970A (zh) * 2020-06-17 2021-06-01 国际竹藤中心 一种竹纤维束定向拉伸机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012003180A1 (de) 2012-02-17 2013-08-22 Oerlikon Textile Components Gmbh Streckwerk zum Verziehen eines Vorgarns
RU2515870C1 (ru) * 2012-12-04 2014-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановская государственная текстильная академия" (ИГТА) Устройство для выпуска мычки кольцевой прядильной машины

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052878A1 (de) 2000-10-19 2002-05-08 Stahlecker Fritz Verfahren zum Umrüsten einer Streckwerksstanze
EP1526194A2 (fr) 2003-10-21 2005-04-27 Maschinenfabrik Rieter Ag Métier à filer comprenant un dispositif de condensation
WO2006005207A1 (fr) 2004-07-14 2006-01-19 Holding für Industriebeteiligungen AG Systeme de compression mecanique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015825B4 (de) * 2006-04-03 2021-07-08 Holding für Industriebeteiligungen AG Compactor-Abstützung
DE102006041770A1 (de) * 2006-09-04 2008-03-06 Maschinenfabrik Rieter Ag Faserverdichtungsvorrichtung in einem Steckwerk einer Spinnmaschine
DE102007024234B4 (de) * 2007-05-21 2022-06-23 Wilhelm Stahlecker Gmbh Streckwerk zum Verziehen eines Faserverbandes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052878A1 (de) 2000-10-19 2002-05-08 Stahlecker Fritz Verfahren zum Umrüsten einer Streckwerksstanze
EP1526194A2 (fr) 2003-10-21 2005-04-27 Maschinenfabrik Rieter Ag Métier à filer comprenant un dispositif de condensation
WO2006005207A1 (fr) 2004-07-14 2006-01-19 Holding für Industriebeteiligungen AG Systeme de compression mecanique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013170346A (ja) * 2012-02-17 2013-09-02 Oerlikon Textile Components Gmbh 粗糸をドラフトするドラフト装置
CN112739860A (zh) * 2018-10-12 2021-04-30 特吕茨施勒有限及两合公司 用于纤维条运输设备的罗拉和以此配备的纤维条运输设备
CN112739860B (zh) * 2018-10-12 2022-07-12 特吕茨施勒集团欧洲公司 用于纤维条运输设备的罗拉和以此配备的纤维条运输设备
CN112877970A (zh) * 2020-06-17 2021-06-01 国际竹藤中心 一种竹纤维束定向拉伸机

Also Published As

Publication number Publication date
EP2314742A3 (fr) 2014-03-26
DE102009050581A1 (de) 2011-04-28

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