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US20060150374A1 - Clearer roller holding device for drafting arrangements in spinning groups - Google Patents

Clearer roller holding device for drafting arrangements in spinning groups Download PDF

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Publication number
US20060150374A1
US20060150374A1 US10/520,481 US52048105A US2006150374A1 US 20060150374 A1 US20060150374 A1 US 20060150374A1 US 52048105 A US52048105 A US 52048105A US 2006150374 A1 US2006150374 A1 US 2006150374A1
Authority
US
United States
Prior art keywords
clearer
roller
rollers
upper roller
guide
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.)
Abandoned
Application number
US10/520,481
Other languages
English (en)
Inventor
Klaus Pape
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.)
TEXparts GmbH
Original Assignee
TEXparts 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 TEXparts GmbH filed Critical TEXparts GmbH
Assigned to TEXPARTS GMBH reassignment TEXPARTS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PAPE, KLAUS
Publication of US20060150374A1 publication Critical patent/US20060150374A1/en
Abandoned 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
    • D01H5/74—Rollers or roller bearings
    • 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
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/64—Rollers or aprons with cleaning surfaces

Definitions

  • the invention is relative to a drafting arrangement for spinning units.
  • the fibrous material to be spun is customarily supplied to the spinning groups in the form of slubbings that are drafted in front of the spinning group. Drafting arrangements are used for this purpose. Waste fibers can wind around the rollers or cylinders of the drafting arrangement in an undesired manner during the operation of spinning. If this fibrous material clinging to the roller separates again from the roller and passes into the stubbing path, that is also called the track, the slubbing can receive undesired knots or thickened areas. This can result in intolerable defects in the yarn. It is known that the waste fibers can be removed from the drafting arrangement rollers by clearer rollers. The clearer rollers are entrained by the working rollers of the drafting arrangement by friction and comprise a clearer coating. The clearer coating is cleaned intermittently or continuously.
  • Swiss Patent Publication CH 402 690 describes a spinning machine drafting arrangement with a pivotably mounted upper roller carrier and weighting arm that receives adjustable holders for the upper rollers.
  • Bracket-shaped cleaner-roller holders with guides inclined relative to the plane of the drafting field and for the shafts of the clearer rollers overlap the upper roller carrier and weighting arm.
  • Clearer rollers for the upper rollers rest with their intrinsic weight on the associated upper rollers to be cleaned and remove fiber laps or the like from the upper rollers.
  • the cleaner rollers are placed between two upper roller carrier and weighting arms in adjacent guides of the cleaner roller holders and overlap two tracks. In the case of cleaner rollers mounted in this manner the upper rollers of the two outer tracks of a spinning machine cannot be loaded with a cleaner roller.
  • European Patent Publication EP 0 344 944 describes a drafting arrangement in which the upper roller carrier and weighting arms comprise opposingly arranged cleaner rollers on each side, each of which overlaps only one track.
  • the cleaner rollers have the form of a truncated cone. With this form of the cleaner roller the waste fibers separated out of the sliver should be gathered up and continuously transported to a removal station.
  • the conical form produces a difference in the surface speed between cleaner roller and upper roller that is intended to produce a better cleaning action.
  • the fibers gathered up by the cleaner roller are loaded up with a force component that moves the fibers to the smaller diameter of the cleaner roller.
  • the cleaner roller is connected in a non-detachable manner to the holder by rivets or, alternatively, screw connections must be loosened.
  • axes that run through the upper roller carrier and weighting arm and to each of which two clearer rollers are fastened are a hindrance. Therefore, various holder constructions are fastened on an upper roller carrier and weighting arm. The manipulating of such clearer rollers during assembly and disassembly is relatively complex compared with a simple insertion of the clearer rollers, as is possible in the design of Swiss Patent Publication CH 402 690.
  • German Patent Publication DE 195 21 265 A1 shows a drafting arrangement for a spinning machine in which arrangement a clearer roller is mounted on a pivot arm arranged laterally on the upper roller carrier and weighting arm.
  • the construction of the holder is relatively complex.
  • the use of clearer rollers that are inserted between two upper roller carrier and weighting arms and overlap two tracks is not possible in the device according to German Patent Publication DE 195 21 265 A1.
  • This is a disadvantage in as far as significantly less expense for assembly and disassembly is required in the cleaning of the clearer roller on the plurality of drafting arrangements of a spinning machine with rollers overlapping two tracks.
  • the invention has the problem, starting with the previously described state of the art, of creating an improved holder for rotating clearer rollers on drafting arrangements of spinning machines.
  • This problem is solved with a drafting arrangement for spinning groups with at least one upper roller carrier and weighting arm held by a machine frame in which clearer rollers are rotatably mounted on an axis and can shift in a guide of a bearing element transversely to their axis of rotation in such a manner on the upper roller carrier and weighting arm that they rest on the particular associated upper roller during the spinning process.
  • the present invention is characterized in that at least one end of the axis of a clearer roller is designed with a holding device that extends behind the guide of the bearing element, which guide is designed as a connecting link guide.
  • the present invention is further characterized by advantageous embodiments of the invention.
  • a holder is present with the design in accordance with the invention that permits a simple and rapid assembly and disassembly. The number of structural parts to be manufactured and assembled is reduced.
  • the holder in accordance with the invention has a simple design and can be universally used for clearer rollers mounted between two upper roller carrier and weighting arms overlapping two tracks as well as for clearer rollers for one track.
  • a holding device designed as a collar can be manufactured in a particularly simple and economical manner.
  • a connecting link guide comprising a spring element on each side of the bearing element, with which spring the axis of the clearer roller can be loaded with a force that presses the clearer roller against the upper roller, assures that the clearer roller always has contact with the upper roller and thus results in a better clearing action.
  • the play between the connecting link guide in the axis of the clearer roller is eliminated and a stabilization of the direction of the clearer roller achieved.
  • An electrostatic charging of the clearer roller is avoided with an electrically conductive connection between clearer roller and machine frame. Such an electrostatic charge can result in functional disturbances and yarn defects.
  • FIG. 1 shows a simplified perspective partial view of upper roller carrier and weighting arms of a drafting arrangement.
  • FIG. 2 shows a bearing of a clearer roller for a track and of a clearer roller for two tracks in a bearing element in a perspective view.
  • FIG. 3 shows a bearing of two clearer rollers for one track on a bearing element in a perspective view.
  • FIG. 4 shows a simplified perspective partial view of upper roller carrier and weighting arms of a drafting arrangement with two clearer rollers for one track.
  • FIG. 1 shows by way of example a part of a drafting arrangement with two clearer rollers 1 inserted between two upper roller carrier and weighting arms 2 , 3 and resting on two upper rollers of the front drafting roller pairs, as well as shows two other clearer rollers 4 , 5 resting laterally to outer upper roller carrier and weighting arms 2 on the upper rollers of the outer front drafting roller pairs.
  • Clearer rollers 1 cooperate with the upper rollers of two tracks whereas clearer rollers 4 , 5 cooperate only with the upper rollers of one track during the spinning operation. All drafting roller pairs and their bearings are not shown for reasons of simplification.
  • Upper roller carrier and weighting arms 2 , 3 comprise bearing elements 6 in which clearer rollers 1 , 4 , 5 are laterally mounted.
  • Upper roller carrier and weighting arms 2 can be pivoted in a customary manner out of the lowered position, the operating position, shown into an upper final position. Details of the bearing of clearer rollers 1 , 5 can be gathered from FIG. 2 . Upper roller carrier and weighting arm 2 and the fastening elements with which bearing element 6 is fastened to upper roller carrier and weighting arm 2 are not shown in order to be able to show the bearing clearly.
  • Bearing element 6 is symmetrically designed and comprises a guide element 7 , 13 on each side that forms a connecting link guide.
  • Each guide element 7 , 13 comprises a spring element 8 , 14 .
  • One end of the axis of clearer roller 5 designed as hollow bearing pin 9 is inserted to the outer side of upper roller carrier and weighting arm 2 (on the left in the view of FIG. 2 ). Clearer roller 5 is drawn away from hollow bearing pin 9 in order to assure an unimpeded view of the bearing.
  • a detachable fixing of clearer roller 5 on hollow bearing pin 9 takes place by means of engagement nipple 11 .
  • Engagement nipple 11 cooperates with an engagement groove (not shown here) as is described in detail, e.g., in German Patent Publication DE 195 21 265 A1.
  • Clearer roller 5 is provided with clearer coating 10 .
  • Hollow bearing pin 9 comprises collar 12 on its end inserted into bearing element 6 . This collar 12 engages behind the connecting link guide formed by guide element 7 and brings it about that clearer roller 5 is held with one-sided bearing during the operation of the drafting arrangement by bearing element 6 .
  • Spring element 8 is curved in such a manner that hollow bearing pin 9 is loaded with a force that presses clearer roller 5 in addition to the force produced by the intrinsic weight of clearer roller 5 against the associated upper roller.
  • Clearer roller 1 rests like clearer roller 5 by virtue of its intrinsic weight. While clearer roller 5 cooperates as an individual roller with only one upper roller, clearer roller 1 clears two upper rollers with its clearer coating 16 .
  • the contact force on the upper roller exerted by the intrinsic weight is strengthened by the force component applied by spring element 14 on hollow bearing pin 15 .
  • a corresponding force component is applied by the spring element (not visible in FIG. 2 ) of bearing element 6 fastened on upper roller carrier and weighting arm 3 .
  • hollow bearing pin 15 of clearer roller 1 is replaced relative to FIG. 2 by hollow bearing pin 17 .
  • a clearer roller 18 like clearer roller 5 mounted only on one side is inserted into guide element 13 .
  • a collar 19 is formed on the end of hollow bearing pin 17 of clearer roller 18 , like on the end of hollow bearing pin 9 .
  • Collar 19 extends behind the connecting link guide comprising guide element 13 and brings about, like hollow bearing pin 9 of clearer roller 5 , a reliable holding with one-sided bearing of clearer roller 18 .
  • clearer rollers 5 , 18 are not shown in FIG. 3 .
  • Clearer rollers 1 mounted on both sides in the arrangement of FIG. 1 are replaced in the arrangement of FIG. 4 by two clearer rollers 18 mounted on one side. It is not necessary for assembly and disassembly, that can take place in a simple, easy and rapid manner, to replace or modify bearing element 6 or guide elements 7 , 14 . Thus, bearing elements 6 can be universally used.
  • the upper roller carrier and weighting arms 2 are raised or lowered independently of one another without clearer rollers having to be removed from the bearing.
  • clearer rollers 1 extending over two tracks can comprise instead of the embodiment with hollow bearing pins 15 embodiments with hollow bearing pins 9 , 17 with collar 12 , 19 .
  • the bearing elements for the cleaner rollers of the rear upper rollers retain the U-shaped constructional form that is substantially present and can be adjusted, e.g., in a customary manner by means of oblong holes in the longitudinal direction of the upper roller carrier and weighting arm 2 , 3 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US10/520,481 2002-07-10 2003-06-27 Clearer roller holding device for drafting arrangements in spinning groups Abandoned US20060150374A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10231102A DE10231102A1 (de) 2002-07-10 2002-07-10 Streckwerk für Spinnaggregate
DE10231102.1 2002-07-10
PCT/EP2003/006826 WO2004007821A1 (de) 2002-07-10 2003-06-27 Putzwalzen-halteeinrichtung für streckwerke in spinnaggregate

Publications (1)

Publication Number Publication Date
US20060150374A1 true US20060150374A1 (en) 2006-07-13

Family

ID=29761836

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/520,481 Abandoned US20060150374A1 (en) 2002-07-10 2003-06-27 Clearer roller holding device for drafting arrangements in spinning groups

Country Status (6)

Country Link
US (1) US20060150374A1 (zh)
EP (1) EP1521876A1 (zh)
JP (1) JP2005532486A (zh)
CN (1) CN1650054A (zh)
DE (1) DE10231102A1 (zh)
WO (1) WO2004007821A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140317878A1 (en) * 2013-03-22 2014-10-30 Maschinenfabrik Rieter Ag Clearer roller holder for a textile machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103103649A (zh) * 2012-12-10 2013-05-15 苏州尊元纺织有限公司 一种纺织机械的空心罗拉

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837908A (en) * 1986-06-26 1989-06-13 Du Pont De Nemours & Co. Roll assembly for fiber drafting machine
US5179764A (en) * 1991-06-03 1993-01-19 Toray Engineering Co., Ltd. Cleaning belts for the drafting mechanism of a spinning machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE256062C (zh) *
US1534071A (en) * 1923-02-27 1925-04-21 Reginald A Morse Roller mechanism for spinning machines
DE1838648U (de) * 1961-08-01 1961-09-28 Skf Kugellagerfabriken Gmbh Putzwalzenhalter fuer spinnereimaschinen-streckwerke mit einem hochschwenkbar gelagerten oberwalzen-trag- und belastungsarm.
EP0344944A1 (en) * 1988-05-30 1989-12-06 Hiroshi Fujiwara Clearer for top rollers in textile machines
DE19521265C2 (de) * 1994-06-22 1998-02-19 Skf Textilmasch Komponenten Streckwerk für Spinnmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837908A (en) * 1986-06-26 1989-06-13 Du Pont De Nemours & Co. Roll assembly for fiber drafting machine
US5179764A (en) * 1991-06-03 1993-01-19 Toray Engineering Co., Ltd. Cleaning belts for the drafting mechanism of a spinning machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140317878A1 (en) * 2013-03-22 2014-10-30 Maschinenfabrik Rieter Ag Clearer roller holder for a textile machine
US9206533B2 (en) * 2013-03-22 2015-12-08 Maschinenfabrik Rieter Ag Clearer roller holder for a textile machine

Also Published As

Publication number Publication date
JP2005532486A (ja) 2005-10-27
EP1521876A1 (de) 2005-04-13
CN1650054A (zh) 2005-08-03
DE10231102A1 (de) 2004-01-22
WO2004007821A1 (de) 2004-01-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: TEXPARTS GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PAPE, KLAUS;REEL/FRAME:017498/0432

Effective date: 20041227

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION