EP1413656A2 - Métiers à filer à vortex d'air avec une distance de filature ajustable entre la boîte à filer et le dispositif d'étirage - Google Patents

Métiers à filer à vortex d'air avec une distance de filature ajustable entre la boîte à filer et le dispositif d'étirage Download PDF

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Publication number
EP1413656A2
EP1413656A2 EP03016393A EP03016393A EP1413656A2 EP 1413656 A2 EP1413656 A2 EP 1413656A2 EP 03016393 A EP03016393 A EP 03016393A EP 03016393 A EP03016393 A EP 03016393A EP 1413656 A2 EP1413656 A2 EP 1413656A2
Authority
EP
European Patent Office
Prior art keywords
eccentric
spinning
drafting
adjusting device
box
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Withdrawn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
EP03016393A
Other languages
German (de)
English (en)
Other versions
EP1413656A3 (fr
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
Publication of EP1413656A2 publication Critical patent/EP1413656A2/fr
Publication of EP1413656A3 publication Critical patent/EP1413656A3/fr
Withdrawn legal-status Critical Current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 various devices for air spinning machines for producing spun yarn from a staple fiber structure according to the preamble of independent claims 1, 2 and 3.
  • Air spinning machines are to be understood as devices which have at least one, but usually a multiplicity of spinning positions, each of which produces a yarn from a longitudinal fiber structure or staple fiber structure supplied, the yarn forming process being carried out using an air spinning method, that is to say that the yarn is formed by air twist in a so-called spin box.
  • the spin box each has a fiber feed channel with a fiber guide surface for guiding the staple fiber dressing, at the exit of which there is a swirl chamber, which in turn comprises a spindle with a yarn guide channel.
  • the swirl chamber contains a fluid device which generates a swirl flow around the inlet mouth of the yarn guide channel of the spindle.
  • the staple fiber bandage or the yarn is drawn off through the yarn guide channel.
  • the vortex flow around the inlet opening of the yarn guide channel causes the outer fibers of the staple fiber structure to twist around its inner core when the longitudinal fiber structure is pulled off. In this way, a yarn is made from a staple fiber bandage.
  • a drafting system is used to supply the spin box with the longitudinal fiber structure or staple fiber structure.
  • the drafting system is required to first pull the longitudinal fiber structure, which is usually a sliver, to the fineness suitable for the spinning process.
  • Such devices are known in textile technology and are already used for air spinning processes.
  • Such a device discloses the document EP 854 214 (equivalent to US 5,927,062). It is also known that the distance between the clamping point or the clamping line from the pair of outlet rollers of the drafting system and the inlet opening of the spindle has a significant influence on the quality of the yarn produced.
  • FIG. 1 shows a spinning station 1 of an air spinning machine, as is known from the prior art.
  • An air spinning machine has a large number of such spinning stations 1.
  • the individual elements of the spinning station 1 are shown schematically in FIG. 1. It can be seen how the staple fiber dressing 3 is guided through the drafting device 4 and refined there.
  • the drafting device 4 delivers the refined staple fiber assembly 3 to the spinning box 5 via the drafting device outlet rollers 6.
  • the staple fibers 3 supplied from the drafting device 4 are introduced into the spinning box 5 via the fiber conveying channel 17.
  • the fibers pass from the fiber conveying channel 17 into the swirl chamber 9 of the spin box 5, in which an air swirl (not shown) is generated by the fluid device 16.
  • the yarn 2, or the not yet spun staple fiber structure 3, is drawn off through the yarn guide channel 18 of a spindle 8 contained in the swirl chamber 9.
  • the formation of the yarn 2 from the staple fiber association 3 takes place at the mouth of the spindle 8, in that the outer fibers of the staple fiber association 3 are given a twist or a real twist by the vortex flow in the vortex chamber 9.
  • the drafting device 4 and the spinning box 5 are fixedly mounted on the frame 13 of the air spinning machine. When designing and assembling the machine, care is taken to ensure that the distance I between the clamping line 7 of the drafting device discharge roller pair 6 and the spindle 8, or the mouth of the spindle 8, has a suitable amount.
  • a disadvantage of the spinning stations according to the prior art is that the distance I is fixed by the design of the machine and cannot be changed, or can only be dismantled and removed by means of a time-consuming and tedious disassembly of the spinning box 5 or the drafting device 4 from the frame 13 Adaptation of the brackets 19 can be changed.
  • the present invention is therefore based on the object of providing a construction with which the distance between the drafting system and the spindle, or the mouth of the spindle, can be quickly and easily readjusted.
  • the distance I between the clamping line 7 of the drafting unit discharge roller pair 6 and the spindle 8, or the mouth of the spindle 8, can be adjusted, it is possible to change the distance I in a simple and quick manner adjust.
  • Another advantage of the invention is that the distance I can be set to the optimal amount for the type of staple fiber being processed.
  • the device also makes it possible to change the distance I faster to the optimum value when spinning different staple fibers (assortments).
  • the optimum amount for the distance I can be determined by means of test series. The distance I between the test areas can be changed quickly and easily.
  • FIG. 1 shows a conventional spinning station of an air spinning machine, as is known from the prior art.
  • the individual elements of the spinning station 1 have already been described above, which is why it will not be dealt with here again.
  • both the spinning box 5 and the drafting system 4 are permanently installed on the frame 13 of the air spinning machine via the associated brackets 19 and cannot be adjusted.
  • the distance I cannot be optimized in each case for a specific type of staple fiber (that is, for a specific mean length of staple fiber).
  • a readjustment of the distance I to the assortment to be processed is therefore not provided and also not possible with the devices of the prior art: the spinning box 5 or the drafting device 4 are dismantled at each spinning position of an air spinning machine (which has a large number of such spinning positions) and their Reinstallation after adaptation or replacement of the brackets 19 would be an unreasonably great effort for the user of the machine.
  • FIG. 2 shows a first embodiment of the invention, in which an adjusting device 10 according to the invention (shown schematically) is provided on the spin box 5 (instead of the holder 19 from FIG. 1).
  • the arrows in the figure show how the spin box 5 can be adjusted in the fiber guide direction, whereby the distance I changes.
  • the adjusting device 10 is only shown schematically in FIG. 2, because there are many possibilities for the specific embodiment of the adjusting device, all of which are to be covered by this application. The remaining components correspond to the elements from FIG. 1, which is why they are no longer discussed here. It can be seen in FIG. 2 how the distance I between the clamping line 7 of the drafting device discharge roller pair 6 and the spindle 8, and / or its mouth, can be adjusted, in particular continuously adjusted.
  • the drafting system 4 is still mounted on a conventional holder 19.
  • the adjusting device 10 is provided on the spinning box 5 or whether the adjusting device 10 on the drafting device 4 is used instead of a conventional holder 19. It is essential that the adjusting device allows a relative movement between the clamping line 7 and the coil 8. In FIG. 3, therefore, the adjusting device 10 is provided on the drafting device 4, while the spin box 5 has a conventional holder 19. The remaining elements correspond to the description from FIGS. 1 and 2. Here too, the adjusting device 10 is only shown schematically. The possible adjustment or movement of the drafting device 4 is indicated by the arrows. The adjusting device 10 is attached on the one hand to the drafting system 4 and on the other hand to the frame 13 of the spinning station or the air spinning machine.
  • FIG. 4 shows one of many conceivable and possible specific embodiments of the adjustment device 10. It should be pointed out again that the invention is not limited to the embodiment of the adjusting device described below.
  • the adjustment device according to the invention can, for example, consist of an eccentric 11, as shown in this FIG.
  • the eccentric 11 has an eccentrically arranged shaft 20.
  • the functioning of an eccentric, as shown in FIG. 4, is known to the person skilled in the art. We will therefore not go into this in more detail at this point.
  • an eccentric 11, as shown in FIG. 4, is used as the adjusting device.
  • the figure shows the eccentric 11 in the installed state (shown schematically). It can be seen how the eccentric 11 is held by a middle and two outer eccentric bearings 12.
  • the middle eccentric bearing 12 serves to support the eccentric shaft 20.
  • the middle eccentric bearing 12 is fastened to the spin box 5 in this exemplary embodiment.
  • the two outer eccentric bearings 12 are fastened, for example, to the frame of the spinning station or the air spinning machine (fastening and frame not shown). By rotating the eccentric 11 (see arrow on the eccentric 11), the eccentric shaft 20 moves, causing the spin box 5 to move. If the shaft 20 of the eccentric 11 is arranged in the eccentric bearing 12 as in FIG.
  • the spinning box 5 experiences a movement which lies mainly in the spinning direction 21.
  • the movement component of the spin box 5 normal to the spinning direction 21 can be neglected if the eccentric 11 is only rotated in a certain area, or if the dimensional relationships between the eccentric 11, including its eccentrically arranged shaft 20, and the spin box 5 are chosen to be correspondingly large.
  • the outer eccentric bearings 12 are fixed in FIG. immovable, mounted on the frame (frame not shown)
  • the spinning box 5 executes a relative movement to the frame and to the outer eccentric bearings 12 as well as to the drafting system also fixedly mounted on the frame (frame and drafting system not shown). This corresponds to a relative movement, as is carried out by the spin box 5 in FIG. 2.
  • the relative movement takes place mainly in the spinning direction 21.
  • FIG. 5 A further, but not shown variant of FIG. 5 would be that the outer eccentric bearings 12 would not be connected to the frame (not shown), but rather directly to the drafting device 4. By rotating the eccentric 11, the spin box 5 would also be positioned closer or further away from the drafting system.
  • spin box 5 can also be pivoted about the eccentric shaft 20 (see pivoting direction 22).
  • the pivotability of the spin box 5 about the axis 20 has the advantage that it can be better serviced by pivoting out.
  • FIG. 6 shows interchangeable eccentric bearings 12.1 and 12.2. These two eccentric bearings are distinguished by the fact that they have the bores 14 for receiving the eccentric shaft 11 at different points.
  • the eccentric bearings 12.1 and 12.2 have dovetails 15 for their fastening, with which they can be fastened on the frame or on the component to be adjusted.
  • the distance L can be adjusted in two stages: On the one hand, by using different eccentric bearings 12.1 and 12.2, the distance I can be adjusted in stages (first stage rough adjustment). On the other hand, the distance I can then be precisely adjusted by the eccentric (second stage fine adjustment). In this way it is possible to effect a coarse and a fine adjustment of the distance I.
  • FIG. 7 shows a further exemplary embodiment of the invention.
  • the eccentric bearing 12.3 is not interchangeable, but is slidably attached to the frame 13 (machine frame or frame of the spinning station).
  • the displaceable eccentric bearing 12.3 can be displaceably mounted in a guide with a spring and a screw.
  • This embodiment of the adjustment device has the advantage that the adjustability of the distance I can take place over a very wide range.
  • FIG. 8 shows a further embodiment of an eccentric bearing 12.4 with an eccentrically arranged bore 14.1.
  • the eccentric bearing 12.4 can be installed in two positions: thanks to the eccentrically arranged bore 14.1, the bearing 12.4 can also be installed rotated by 180 °. This changes the distance I between the clamping line 7 and the mouth of the spindle 8 (see previous Figures) by the amount d.
  • the rotatable eccentric bearing 12.4 with an eccentrically arranged bore 14.1 is preferably selected as a bearing on the component to be adjusted, but can also be used as an eccentric bearing on the frame.
  • the invention and the inventive concept are not only restricted to the devices of an air spinning machine with a drafting system.
  • another refinement device can also be used, such as, for example, an opening roller with a subsequent clamping unit, which causes the clamping (analogous to the clamping line of the drafting arrangement).
  • the adjustment devices of several or each spinning station are coupled mechanically (for example by an axis) or in terms of control technology. This would make it possible for the spinning distance (distance I) of all the adjustment devices to be adjusted together from a central control unit of the air spinning machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP03016393A 2002-10-24 2003-07-21 Métiers à filer à vortex d'air avec une distance de filature ajustable entre la boíte à filer et le dispositif d'étirage Withdrawn EP1413656A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17832002 2002-10-24
CH17832002 2002-10-24

Publications (2)

Publication Number Publication Date
EP1413656A2 true EP1413656A2 (fr) 2004-04-28
EP1413656A3 EP1413656A3 (fr) 2005-01-26

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EP03016393A Withdrawn EP1413656A3 (fr) 2002-10-24 2003-07-21 Métiers à filer à vortex d'air avec une distance de filature ajustable entre la boíte à filer et le dispositif d'étirage

Country Status (3)

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

Cited By (1)

* 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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584715A1 (fr) * 2004-04-07 2005-10-12 Maschinenfabrik Rieter Ag Procédé pour fabriquer un fil dans un métier à filer à vortex d'air
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 (3)

* 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
US5263310A (en) * 1990-02-20 1993-11-23 Murata Kikai Kabushiki Kaisha Spinning apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3617406B2 (ja) * 2000-03-30 2005-02-02 日本電気株式会社 マルチドメインに対応した品質保証型通信サービス提供方式およびサービス提供方法並びにサービス仲介装置
AU2001257374A1 (en) * 2000-04-28 2001-11-12 Sheer Networks, Inc. Network management method and system
US6745235B2 (en) * 2000-07-17 2004-06-01 Teleservices Solutions, Inc. Intelligent network providing network access services (INP-NAS)
US7219124B2 (en) * 2000-08-01 2007-05-15 Qwest Communications International Inc. Provisioning system and method for auto-discovering customer premises equipment in activating xDSL

Patent Citations (3)

* 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
US5263310A (en) * 1990-02-20 1993-11-23 Murata Kikai Kabushiki Kaisha Spinning apparatus

Cited By (1)

* 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

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JP2004143657A (ja) 2004-05-20
US20040123581A1 (en) 2004-07-01
EP1413656A3 (fr) 2005-01-26

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