US20040123581A1 - Adjustable spinning distance - Google Patents

Adjustable spinning distance Download PDF

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Publication number
US20040123581A1
US20040123581A1 US10/651,759 US65175903A US2004123581A1 US 20040123581 A1 US20040123581 A1 US 20040123581A1 US 65175903 A US65175903 A US 65175903A US 2004123581 A1 US2004123581 A1 US 2004123581A1
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US
United States
Prior art keywords
eccentric
spinning
drafting unit
adjusting device
frame
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
US10/651,759
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English (en)
Inventor
OLivier Wuest
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
Assigned to MASCHINENFABRIK RIETER AG reassignment MASCHINENFABRIK RIETER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WUEST, OLIVIER
Publication of US20040123581A1 publication Critical patent/US20040123581A1/en
Abandoned legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/16—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex

Definitions

  • the present invention relates to different devices for air spinning frames for the production of spun thread from a staple fibre strand according to the preamble of the independent claims 1 , 2 and 3 .
  • each spinning box comprises a fibre conveying channel with a fibre-guiding surface for guiding the staple fibre strand, at whose outlet a twisting chamber is provided, which, for its part, comprises a spindle with a thread guiding channel.
  • the twisting chamber contains a fluid device, which generates turbulence around the inlet opening of the thread guiding channel of the spindle.
  • the staple fibre strand and/or the thread are drawn off through the thread-guiding channel.
  • the turbulence around the inlet opening of the thread guiding channel causes a twisting of the outside fibres of the staple fibre strand around its inner core during drawing-off of the longitudinal fibre formation. This way, a thread is being produced from a staple fibre strand.
  • a drafting unit is provided.
  • the drafting unit is required, in order to first draw the longitudinal fibre formation, which is usually a roving, to the degree of fineness that is suitable for the spinning process.
  • Such devices are known in textile technology and are already applied for air spinning processes. Such a device is for example disclosed in the document EP 854 214 (equivalent to U.S. Pat. No. 5,927,062). It is further known that the distance between the clamping point or the clamping line of the pair of drafting unit discharge rollers and the inlet port of the spindle have a substantial effect on the quality of the produced thread. From the DE 41 05 108 C 2 (equivalent to U.S. Pat. No. 5,146,740 and U.S. Pat. No. 5,263,310) and in particular from the DE 41 31 059 A 1 (equivalent to U.S. Pat. No.
  • FIG. 1 shows a spinning place 1 of an air spinning frame, as it is known from the state of the art.
  • An air spinning frame comprises a multiplicity of such spinning places 1 .
  • the individual components of the spinning place 1 are schematically illustrated in FIG. 1.
  • the drafting unit 4 supplies the refined staple fibre strand 3 , by way of the discharge rollers 6 which are part of the drafting unit, to the spinning box 5 .
  • the staple fibre strand 3 supplied from the drafting unit 4 enters the spinning box 5 through the fibre-conveying channel 17 .
  • the fibres From the fibre-conveying channel 17 the fibres enter the twisting chamber 9 of the spinning box 5 , wherein a (not illustrated air-) turbulence is generated by the fluid device 16 .
  • the thread 2 , and/or the not yet spun staple fibre strand 3 is drawn through the guiding channel 18 of a spindle 8 contained in the twisting chamber 9 .
  • the formation of the thread 2 from the staple fibre strand 3 takes place at the port of the spindle 8 , in that the outside fibres of the staple fibre strand 3 receive a twist from the turbulence in the twisting chamber 9 , and/or a real turning motion.
  • the drafting unit 4 and the spinning box 5 are fixedly mounted on the frame 13 of the air spinning frame.
  • the distance I between the clamping line 7 of the pair of drafting unit discharge rollers 6 and the spindle 8 , and/or the port of the spindle 8 is of a suitable length.
  • the disadvantage in the spinning places, according to the state of the known art, is, that the distance I is given fixedly by the design of the machine and cannot be changed or can only be changed by way of a time-consuming and laborious dismounting of the spinning box 5 or of the drafting unit 4 from the frame 13 and by means of adapting the holders 19 . It is therefore the task of the present invention to provide a configuration of a design with which the distance between the drafting unit and the spindle, and/or the port of the spindle, can be adjusted again in a fast and simple manner.
  • a further advantage of the invention is that the distance I can be adjusted to the optimal amount for the type of staple fibre strand being treated at the moment.
  • the device also permits, during the spinning of different staple fibre strands (assortments), to faster change the distance I over to the optimal value.
  • a further advantage of the invention is that the determination of the optimal amount for the distance I can be evaluated by means of a testing series. Between the test runs the distance I can be changed fast and simply.
  • FIG. 1 a spinning place of an air spinning frame according to the state of the art with fixedly attached holders 19 ;
  • FIG. 2 a first embodiment of the invention with an adjusting device 10 according to the invention
  • FIG. 3 a further embodiment of the invention
  • FIG. 4 a possible embodiment of the adjusting device 10 according to the invention in the form of an eccentric
  • FIG. 5 a mounted adjusting device comprising an eccentric with the pertaining bearing for the eccentric;
  • FIGS. 6, 7 and 8 different embodiments of bearings for the eccentric.
  • FIG. 1 shows a conventional spinning place of an air spinning frame, as it is known from the state of the art.
  • the individual components of the spinning place 1 were already described further above, thus a further description can be omitted at this stage.
  • both the spinning box 5 as well as the drafting unit 4 are, by means of pertaining holders 19 , fixedly mounted on the frame 13 within the air spinning frame and are not adjustable.
  • pertaining holders 19 fixedly mounted on the frame 13 within the air spinning frame and are not adjustable.
  • FIG. 2 shows a first embodiment of the invention, at which (schematically illustrated) an adjusting device 10 according to the invention is provided at the spinning box 5 (in place of the holders 19 of the FIG. 1).
  • an adjusting device 10 according to the invention is provided at the spinning box 5 (in place of the holders 19 of the FIG. 1).
  • the adjusting device 10 is only schematically illustrated in FIG. 2, because there are many possibilities for the actual embodiment of the adjusting device, which are all to be covered by this application.
  • the remaining components correspond with the components of FIG. 1; for this reason they are not described furthermore.
  • FIG. 1 shows a first embodiment of the invention, at which (schematically illustrated) an adjusting device 10 according to the invention is provided at the spinning box 5 (in place of the holders 19 of the FIG. 1).
  • the adjusting device 10 is provided at the spinning box 5 or whether the adjusting device 10 is applied at the drafting unit 4 in place of a conventional holder 19 .
  • the essential fact is that the adjusting device permits a relative motion between the clamping line 7 and the yarn package 8 .
  • the adjusting device 10 is provided at the drafting unit 4
  • the spinning box 5 comprises a conventional holder 19 .
  • the remaining components correspond with the description of FIGS. 1 and 2.
  • the adjusting device 10 is also only schematically illustrated here. The possible adjustment, and/or movement of the drafting unit 4 , is indicated with the arrows.
  • the adjusting device 10 is, on the one hand, attached on the drafting unit 4 and, on the other hand, on the frame 13 of the spinning place, and/or the air spinning frame.
  • FIG. 4 one of the many conceivable and possible concrete embodiments of the adjusting device 10 is illustrated. It is again to be pointed out that the invention is not only limited to the following description of the embodiment of the adjusting device.
  • the adjusting device according to the invention can for example, as is shown in this FIG. 4, consist of an eccentric 11 .
  • the eccentric 11 comprises an eccentrically arranged shaft 20 .
  • the working principle of an eccentric, as it is illustrated in FIG. 4, is generally known to the specialist. Therefore no further explanations are given here.
  • FIG. 5 an eccentric 11 , as is shown in FIG. 4, is applied as an adjusting device.
  • the figure shows the eccentric 11 in the mounted condition (schematically illustrated).
  • the centre bearing 12 of the eccentric serves as the support of the eccentric bearing shaft 20 .
  • the centre eccentric bearing 12 in this exemplified embodiment is fastened on the spinning box 5 .
  • the two outer bearings 12 of the eccentric are for example fastened on the frame of the spinning place, and/or on the air spinning frame, (the attachment and the frame are not illustrated).
  • the spinning box 5 is subjected to a movement, which is mainly directed in spinning direction 21 .
  • the movement component (vector) of the spinning box 5 normal (perpendicular) to the spinning direction 21 can be neglected if the eccentric 11 is turned only within a certain range, and/or if the relation of the dimension between eccentrics 11 inclusively the eccentrically arranged shaft 20 , and the spinning box 5 are chosen correspondingly large. Since, according to FIG. 5, the outer eccentric bearings 12 are mounted fixedly, i.e.
  • the spinning box 5 makes a relative motion in relation to the frame and to the outer eccentric bearings 12 as well as to the drafting unit being likewise fixedly mounted on the frame (frame and drafting unit not shown). This corresponds to a relative motion of the spinning box 5 according to FIG. 2.
  • the relative motion takes mainly place in spinning direction 21 .
  • FIG. 5 A further, but not shown embodiment of the FIG. 5 would be, that the outer eccentric bearings 12 are not connected at the frame (not shown), but directly with the drafting unit 4 . By turning the eccentric 11 the spinning box 5 would likewise be positioned closer or further away from the drafting unit.
  • a further feature of this device is, that the spinning box 5 can also be swivelled around the eccentric shaft 20 (see swivelling direction 22 ).
  • the possibility to swivel the spinning box 5 around the shaft 20 has the advantage that it can be better accessed for maintenance.
  • FIGS. 6, 7 and 8 show different embodiments for the eccentric bearings.
  • FIG. 6 shows interchangeable eccentric bearings 12 . 1 and 12 . 2 . These two eccentric bearings are characterised in that their holes 14 for the mounting of the eccentric shaft 11 are at different locations.
  • the eccentric bearings 12 . 1 and 12 . 2 comprise dovetails 15 for their mounting, by which they are attached on the frame or on the component that is to be adjusted.
  • the adaptation of the distance L can take place in two steps: On the one hand, by using different eccentric bearings 12 . 1 and 12 . 2 the distance I can be adjusted stepwise (first step coarse adjustment).
  • the distance I can be accurately adjusted additionally by means of the eccentric (second step fine adjustment). It is possible in this way, to affect a coarse and a fine adjustment of the distance I.
  • the interchangeable eccentric bearings like the components 12 . 1 and 12 . 2 can be used both on the frame and as well as on the component which is to be adjusted (see example in FIG. 5).
  • FIG. 7 shows a further exemplified embodiment of the invention.
  • the eccentric bearing 12 . 3 is not interchangeable, but adjustably attached on the frame 13 (machine frame, and/or frame of the spinning place).
  • the adjustable eccentric bearing 12 . 3 can, as is shown in this exemplified embodiment, be shiftable mounted with a spring and a screw within a guide.
  • This embodiment of the adjusting device has the advantage that the adjustability of the distance I can take place over a very wide range.
  • FIG. 8 illustrates a further embodiment of an eccentric bearing 12 . 4 with off centre-arranged hole 14 . 1 .
  • the eccentric bearing 12 . 4 can be mounted in two positions: Thanks to the hole 14 . 1 arranged off-centre, the bearing 12 . 4 can also be mounted in a 180° turned position. Thereby the distance I between the clamping line 7 and the port of the spindle 8 changes (see preceding figures) by the amount d.
  • the rotatable eccentric bearing 12 . 4 with off-centre arranged hole 14 . 1 is preferentially selected as bearing on the component which is to be adjusted, but it can also be used as eccentric bearing on the frame.
  • the invention and the idea of the invention are not only limited to the use with the devices of an air spinning frame with a drafting unit.
  • another refinement device can also be used in place of a drafting unit, as for example a dissolving roller with succeeding clamping unit, which causes the clamping (similar to the clamping line of the drafting unit).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US10/651,759 2002-10-24 2003-08-29 Adjustable spinning distance Abandoned US20040123581A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17832002 2002-10-24
CH1783/02 2002-10-24

Publications (1)

Publication Number Publication Date
US20040123581A1 true US20040123581A1 (en) 2004-07-01

Family

ID=32046638

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/651,759 Abandoned US20040123581A1 (en) 2002-10-24 2003-08-29 Adjustable spinning distance

Country Status (3)

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US (1) US20040123581A1 (de)
EP (1) EP1413656A3 (de)
JP (1) JP2004143657A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070277494A1 (en) * 2004-04-07 2007-12-06 Herbert Stalder Method for Producing a Yarn in a Jet Spinner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011617A1 (de) * 2008-02-28 2009-09-03 Deutsche Institute für Textil- und Faserforschung Stuttgart Pneumatische Stapelfaserspinnvorrichtung
CN106400225B (zh) * 2016-06-22 2018-09-21 陕西宝成航空仪表有限责任公司 用于喷气涡流纺纱机针长和锭子高度的检测装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107911A (en) * 1976-06-18 1978-08-22 Murata Kikai Kabushiki Kaisha Pneumatic spinning apparatus
US4242859A (en) * 1980-01-21 1981-01-06 Lawrence M. Keeler Thread spinning apparatus
US20010027484A1 (en) * 2000-03-30 2001-10-04 Nec Corporation Quality assured network service provision system compatible with a multi-domain network and service provision method and service broker device
US20010047386A1 (en) * 2000-02-17 2001-11-29 Domenikos George C. Systems and methods for supporting on-line delivery of communication services
US6349238B1 (en) * 1998-09-16 2002-02-19 Mci Worldcom, Inc. System and method for managing the workflow for processing service orders among a variety of organizations within a telecommunications company
US20020029268A1 (en) * 2000-07-17 2002-03-07 Baca C. Daniel Intelligent network providing network access services (INP-NAS)
US20020032769A1 (en) * 2000-04-28 2002-03-14 Sharon Barkai Network management method and system
US20020071440A1 (en) * 2000-08-01 2002-06-13 Richard Cerami Provisioning system and method for auto-discovering customer premises equipment in activating xDSL

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263310A (en) * 1990-02-20 1993-11-23 Murata Kikai Kabushiki Kaisha Spinning apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107911A (en) * 1976-06-18 1978-08-22 Murata Kikai Kabushiki Kaisha Pneumatic spinning apparatus
US4242859A (en) * 1980-01-21 1981-01-06 Lawrence M. Keeler Thread spinning apparatus
US6349238B1 (en) * 1998-09-16 2002-02-19 Mci Worldcom, Inc. System and method for managing the workflow for processing service orders among a variety of organizations within a telecommunications company
US20010047386A1 (en) * 2000-02-17 2001-11-29 Domenikos George C. Systems and methods for supporting on-line delivery of communication services
US20010027484A1 (en) * 2000-03-30 2001-10-04 Nec Corporation Quality assured network service provision system compatible with a multi-domain network and service provision method and service broker device
US20020032769A1 (en) * 2000-04-28 2002-03-14 Sharon Barkai Network management method and system
US20020029268A1 (en) * 2000-07-17 2002-03-07 Baca C. Daniel Intelligent network providing network access services (INP-NAS)
US20020071440A1 (en) * 2000-08-01 2002-06-13 Richard Cerami Provisioning system and method for auto-discovering customer premises equipment in activating xDSL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070277494A1 (en) * 2004-04-07 2007-12-06 Herbert Stalder Method for Producing a Yarn in a Jet Spinner

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Publication number Publication date
EP1413656A2 (de) 2004-04-28
EP1413656A3 (de) 2005-01-26
JP2004143657A (ja) 2004-05-20

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AS Assignment

Owner name: MASCHINENFABRIK RIETER AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WUEST, OLIVIER;REEL/FRAME:014884/0813

Effective date: 20031027

STCB Information on status: application discontinuation

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