EP0697476A2 - Procédé pour fabriquer un retors dans un processus filature-torsion d'après le principle à double torsion ainsi que dispositif pour réaliser le processus - Google Patents

Procédé pour fabriquer un retors dans un processus filature-torsion d'après le principle à double torsion ainsi que dispositif pour réaliser le processus Download PDF

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Publication number
EP0697476A2
EP0697476A2 EP95107288A EP95107288A EP0697476A2 EP 0697476 A2 EP0697476 A2 EP 0697476A2 EP 95107288 A EP95107288 A EP 95107288A EP 95107288 A EP95107288 A EP 95107288A EP 0697476 A2 EP0697476 A2 EP 0697476A2
Authority
EP
European Patent Office
Prior art keywords
thread
fiber material
balloon
annular space
spinning
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.)
Granted
Application number
EP95107288A
Other languages
German (de)
English (en)
Other versions
EP0697476B1 (fr
EP0697476A3 (fr
Inventor
Ulrich Dr. Ballhausen
Guido Spix
Wilfried Rütten
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.)
Volkmann GmbH and Co KG
Original Assignee
Palitex Project Co 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 Palitex Project Co GmbH filed Critical Palitex Project Co GmbH
Publication of EP0697476A2 publication Critical patent/EP0697476A2/fr
Publication of EP0697476A3 publication Critical patent/EP0697476A3/fr
Application granted granted Critical
Publication of EP0697476B1 publication Critical patent/EP0697476B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist

Definitions

  • the best-known way of producing a twist is that in a first operation using suitable spinning units from disintegrated fiber material, spun threads are produced, which are further processed into a twine in a subsequent operation by means of twisting devices, for example double-wire twisting devices. Between these two operations, there is still a winding process and, in some cases, a specialist process. For the production of twisted yarns, independent spinning machines acting on the one hand and twisting machines on the other hand are required, which is complex both in terms of machine and in terms of the workflow.
  • Processes and devices are also known from the documents DD 78 710 and FR-A-2 354 403, in which individual spinning threads are produced by means of two adjacent, i.e., side by side or one above the other, spinning units which are brought together immediately after spinning and one Thread twist.
  • Dissolved fiber material is fed to each spinning unit essentially in the radial direction through the envelope surface defined by the thread balloon, and at least in the area of the fiber material feeding through the thread balloon, the thread forming the thread balloon is passed through a thread guide element rotating with the thread balloon.
  • the invention has for its object to provide a method and an apparatus by means of which the fiber material in the most uniform, loss-free fiber stream through the envelope surface of the thread balloon into the Thread balloon defined interior is entered and fed to the spinning units.
  • a device for carrying out the method according to the invention is the subject of claim 3. Advantageous further developments of this device are described in the dependent subclaims.
  • the invention thus takes up the basic idea described in the earlier application to integrate spinning units in a twisting device constructed essentially according to the double-wire principle in such a way that the spun threads produced by means of the spinning units are combined immediately after their manufacture in a continuous work process and the two-wire principle with two Thread twists and processed into a thread.
  • a basic idea of the present invention is to first supply the dissolved fiber material to an annular space which lies in the zone of the fiber feed and is arranged coaxially to the spindle axis.
  • the thread forming the thread balloon is guided in such a way that it traverses the annular space in a kind of column or spoke which is part of a rotating component, so that the thread passing through the thread balloon does not come into direct contact with the supplied fiber material.
  • the fiber material is fed to the annular space from the outside in the radial direction and removed from the annular space inwards and fed to the spinning units.
  • the spoke or column through which the thread is guided can be designed so that no fibers can attach to it.
  • the fiber material can be conveyed into and out of the annular space by means of negative pressure.
  • the removal of the fiber material from the annular space is advantageously carried out at a point which is arranged offset in the direction of movement of the spoke or column by a predetermined distance on the circumference of the annular space.
  • the size of the dislocation distance depends on the movement component in the circumferential direction that the fiber material receives when it enters the annular space.
  • the extent to which the fiber flow is disturbed when it passes through the annular space depends on the ratio of the width of the spokes or columns in the circumferential direction to the entire circumference of the annular space. It has been shown that the annular space has a storage function, although the feeding and removal of the fiber material take place essentially at the same point in the annular space. The passage of the spoke or column at the feed or discharge point still occasionally creates a disturbance in the fiber stream, which can lead to the expulsion of one or more fibers from the fiber stream.
  • the annular space can be arranged at practically any point in the contour of the thread balloon.
  • the rotating component and thus the annular space are advantageously arranged in such a way that the greatest possible radial expansion is achieved. Since the width of the spokes or columns in the circumferential direction, as will be explained in more detail below, is essentially determined by the maximum length of the fibers to be supplied and is independent of the radius of the annular space, the degree of coverage of the rotating spokes or columns with respect to the supply and discharge openings increases the greater the radius of the annulus. This means that the trouble-free time for the entry of the material flow into the interior of the thread balloon increases with an increase in the annulus radius.
  • the rotating component through which the thread running through the thread balloon is guided, can, as will be shown below with the aid of exemplary embodiments, be part of a component belonging to the entire spindle, for example part of a rotating limiting pot connected to the spindle rotor disk or part of a balloon thread guide to the centering point on upper end of the thread balloon.
  • the rotating component can also be one of the others Machine parts represent a separate element that is dragged freely by the thread itself.
  • Figure 1 shows a double wire twisting spindle.
  • a hollow shaft 23 is rotatably supported by means of a bearing block 22, the outer, that is to say the lower end of which can be connected to a suction air source (not shown).
  • the hollow shaft 23, which can be driven by a tangential drive belt (not shown) and forms part of the spindle rotor, has a radially outwardly directed spindle rotor disk 26 with a substantially radially guided thread guide channel 27.
  • a balloon limiter pot 7 is fastened to the outer circumference of the spindle rotor disk 26, in the wall thereof a thread guide tube 3 is guided upwards, which connects with its lower end to the thread guide channel 27 and from whose upper end the thread F3 emerges towards the centering point 37.
  • a thread guide tube 3 is guided upwards, which connects with its lower end to the thread guide channel 27 and from whose upper end the thread F3 emerges towards the centering point 37.
  • In the inner end of the thread guide channel 27 opens as part of the spindle hollow axis a bent at its lower end thread guide tube 29 which is inserted into the hollow shaft 23 that 29 air channels 30 remain free between the hollow shaft and the thread guide tube.
  • the spindle rotor is thus essentially formed by the following elements: hollow shaft 23, spindle rotor disk 26, balloon limiter pot 7 with thread guide tube 3 and thread guide tube 29.
  • an essentially closed inner housing secured against rotation via permanent magnet pairs 51, 52 12 mounted which has essentially the shape of a cylinder with a bottom 12.1, an outer wall 12.2 and a removable cover 12.3.
  • this inner housing 12 two rotor spinning devices R1 and R2 are accommodated, the spinning rotors 1 and 2 of which are driven by means of a drive belt 9 from a motor (not shown in FIG. 1).
  • the fiber material feed pipes 5 and 6 which open into the spinning rotors 1 and 2 are guided through the cover 12.3.
  • thread take-off tubes 31 and 32 are guided through the cover 12.3 coaxially above the spinning rotor axes, through which the spinning threads F1 and F2 produced in the spinning rotors 1 and 2 are drawn off before they run in through the upper inlet end 11a of the downwardly directed hollow spindle axis 11, which opens with the interposition of, for example, an annular gap seal 33 in the upper end of the thread guide tube 29.
  • the hollow shaft 23 At the inner end of the hollow shaft 23 there are air channels 39, 40 which open into the interior of the inner housing 12 in the area of the spinning rotors 1 and 2.
  • the outer end of the hollow shaft 23 is connected in a manner not shown to a suction source, so that a negative pressure is generated in the interior of the inner housing 12 via the hollow shaft 23 and the air channels 39, 40, which acts in the fiber material feed pipes 5 and 6 and the fiber feed spinning rotors 1 and 2.
  • the inner housing 12 is surrounded by an outer housing 34 which carries a removable cover 35, in which the interact with the corresponding counter magnets in the cover 12.3 of the inner housing Permanent magnet pairs 51, 52 are arranged, whereby a contactless holding device is formed between the inner housing 12 with the components fixedly arranged in it and the outer housing 34.
  • the power supply to the drive motor (not shown) for the rotor spinning devices R1 and R2 takes place through the spindle rotor disk 26 via a schematically indicated system of slip ring contacts 41, 42 with connecting lines (not shown) connected to it.
  • Dynamometric energy conversion can also be used to generate and supply the necessary electrical energy.
  • 34 fiber material feed channels 4 are arranged in the outer housing, of which only one is visible in FIG. 1.
  • the fiber material feed channel 4 has an outlet opening 4.1 opening into an annular space 10.
  • An offset opening 6.1 of the fiber material feed channel 6 is arranged in the cover 12.3 of the inner housing 12 opposite this.
  • the top and bottom of the annular space 10 is delimited by annular parts 8.1 and 8.2, which are part of a rotating component which is arranged on the upper edge of the regulating pot 7 and thus rotates with it.
  • This limiter pot can be seen in FIG. 3.
  • the two annular parts 8.1 and 8.2 connected to one another via spoke-like or column-like connecting elements 13.1, 13.2 and 13.3.
  • the thread guide tube 3 for the thread F3 is passed through the connecting element 13.1. It is easy to see that the supplied fiber material flow FM enters from the outlet opening 4.1 through the annular space 10 into the inlet opening 6.1 as long as the passage does not pass through one of the.
  • Connecting elements 13.1 to 13.3 is covered.
  • the width of the connecting elements 13.1 to 13.3 in the circumferential direction depends essentially on the maximum length of the fibers contained in the supplied fiber stream. This width should be greater than half the fiber length of the longest fiber in the supplied fiber material stream. Under this condition, it is impossible for individual fibers to wrap around the connecting elements and thus to disrupt the flow of fiber material more.
  • the connecting elements 13.1 to 13.3 preferably have the shape of a wing profile in the direction of rotation to reduce the aerodynamic losses.
  • the degree of coverage depends on the radius of the annular space 10 and the number of connecting elements 13.1 to 13.3. It has proven to be sufficient to provide three connecting elements and it is very advantageous if the radius of the annular space 10 is as large as possible, that is to say if the rotating component is arranged at a point which corresponds to the greatest radial extent of the inner housing 12. This is the case in the exemplary embodiment according to FIGS. 1 to 3.
  • the delivery of the fiber material to be fed through the fiber material feed channels 4 and the fiber material feed channels 5 and 6 is carried out by means of negative pressure.
  • the negative pressure present in the interior of the inner housing 12 continues into the annular space 10 via the fiber material feed channels 5 and 6. So that a sufficient negative pressure can build up in this annular space, gap seals 14, 15 are provided in the gaps connecting the annular space 10 with the spaces under higher pressure between the outer wall of the inner housing 12 and the inner wall of the outer housing 34, the more precise design and mode of operation of which Figures 2 and 4 can be seen.
  • gap seals 14 and 15 preferably have return threads in the circumferential direction of the gap with opposite pitches in relation to the annular space 10 such that the air flowing in from the outside of the annular space 10 is stowed as a result of the thread pitch.
  • FIG. 4 shows a detail in the area of the gaps between the lower ring part 8.1 or the upper ring part 8.2 and the inner wall of the outer housing 34.
  • the air flowing in from outside is indicated by flow lines L.
  • pressure energy is converted into speed energy within the seal, as a result of which the throttling effect occurs.
  • FIG. 4 is a diagram of the course of the negative pressure -P in the circumferential direction X, as indicated by a small coordinate system. It can be seen from this that the pressure drops from the points P1 via P2 to the point P3 corresponding to the center of the annular space 10, and then increases again to the outside via the points P4 and P5.
  • the rotating component is designed as a cap-shaped wheel 28 arranged above the spindle, which is above the cover 17 of the inner housing 16 and whose wheel axis 25 is mounted in a fixed holder 19 via rotary bearings 20.
  • two annular parts 36.1 and 36.2 are arranged, which delimit the annular space 50 between them, which is delimited on both sides by the inner wall of an outer housing 18, which is likewise cap-shaped, and the outer wall of the cover 17 of the inner housing 16.
  • the two annular parts 36.1 and 36.2 are connected to one another via spoke-like connecting elements 38.1 and 38.2.
  • a balloon thread guide tube 43 is passed through the connecting element 38.1, at the lower end of which the thread F3 passing through the thread balloon enters and in which it reaches the centering point 47 performed and deducted there.
  • the fiber material feed channels 44 (only one visible in FIG. 1) are guided through the outer housing 18, the outlet openings 44. 1 of which open into the annular space 50. Opposite them are the inlet openings 46.1 of the fiber material feed channels 46 and 45 which open into the rotors 2 and 1 of the rotor spinning device R2 and R1.
  • gap seals 48 and 49 of the type already described are again used.
  • the annular space has a relatively large radius and the degree of coverage of the outlet or inlet openings is thus reduced.
  • the drive device for the cap-shaped wheel 28 is not specifically shown. It can be constructed using means familiar to the person skilled in the art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP95107288A 1994-08-06 1995-05-13 Procédé pour fabriquer un retors dans un processus filature-torsion d'après le principle à double torsion ainsi que dispositif pour réaliser le processus Expired - Lifetime EP0697476B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427875 1994-08-06
DE4427875A DE4427875C1 (de) 1994-08-06 1994-08-06 Verfahren zur Herstellung eines Zwirns in einem integrierten Spinn-Zwirnprozess nach dem Doppeldrahtprinzip sowie Vorrichtung zur Durchführung des Verfahrens

Publications (3)

Publication Number Publication Date
EP0697476A2 true EP0697476A2 (fr) 1996-02-21
EP0697476A3 EP0697476A3 (fr) 1996-05-01
EP0697476B1 EP0697476B1 (fr) 1997-11-19

Family

ID=6525079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107288A Expired - Lifetime EP0697476B1 (fr) 1994-08-06 1995-05-13 Procédé pour fabriquer un retors dans un processus filature-torsion d'après le principle à double torsion ainsi que dispositif pour réaliser le processus

Country Status (6)

Country Link
US (1) US5628177A (fr)
EP (1) EP0697476B1 (fr)
JP (1) JPH0860457A (fr)
CN (1) CN1049027C (fr)
CZ (1) CZ287429B6 (fr)
DE (1) DE4427875C1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727176C1 (de) * 1997-06-26 1998-11-12 Volkmann Gmbh & Co Verfahren zur kontinuierlichen Herstellung eines Zwirnes mit geringer Kringelneigung
DE19735651C1 (de) * 1997-08-16 1998-08-20 Volkmann Gmbh Verfahren zur berührungslosen Energie- und Signalübertragung an Textilmaschinen, insbesondere Zwirnmaschinen sowie Einrichtung zur Durchführung des Verfahrens
DE59805772D1 (de) * 1997-09-08 2002-11-07 Volkmann Gmbh Zwirnspindel, insbesondere Doppeldraht- oder Direktkablierspindel
DE19739281A1 (de) * 1997-09-08 1999-03-11 Volkmann Gmbh & Co Doppeldraht-Zwirnspindel
DE19807981C1 (de) * 1998-02-25 1999-05-06 Volkmann Gmbh & Co Verfahren zur Herstellung eines Zwirns in einem integrierten Spinn-Zwirnprozeß nach dem Doppeldrahtprinzip sowie Vorrichtung zur Durchführung des Verfahrens
DE19905184C1 (de) * 1999-02-09 2000-03-16 Volkmann Gmbh & Co Vorrichtung zur Herstellung eines Zwirns in einem integrierten Spinn-Zwirnprozeß
CN110735204B (zh) * 2018-07-19 2024-11-26 绍兴易纺机械制造有限公司 一种加捻装置以及使用该加捻装置的加捻机
CN113005576A (zh) * 2021-03-17 2021-06-22 浙江金鹰股份有限公司 一种用于生产麻纺纱的大牵伸气流纺纱装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE78710C (de) * BADISCHE ANILIN- UND SODAFABRIK, Ludwigshafen a. Rh Verfahren zur Darstellung beizenfärbender blauer Farbstoffe aus Nitrosodialkylm-amidophenol
BR7703747A (pt) * 1976-06-09 1978-04-18 Palitex Project Co Gmbh Processo e dispositivo para o preparo de mechas de fibras texteis
DE3015044A1 (de) * 1980-04-18 1981-10-29 HAMEL GmbH Zwirnmaschinen, 4400 Münster Doppeldrahtzwirneinrichtung
DE4307296C1 (de) * 1993-03-09 1994-08-25 Palitex Project Co Gmbh Spindel zur Herstellung eines Garns oder Zwirns
DE4331801C1 (de) * 1993-09-18 1995-02-23 Palitex Project Co Gmbh Verfahren und Vorrichtung zur Herstellung eines Zwirns in einem integrierten Spinn-Zwirnprozeß
DE4336109C2 (de) * 1993-10-22 1996-03-14 Palitex Project Co Gmbh Verfahren und Vorrichtung zur Herstellung eines Zwirns
US5479711A (en) * 1995-04-06 1996-01-02 S-B Power Tool Company Orbital and adjustable cant mechanism for reciprocating saws

Also Published As

Publication number Publication date
US5628177A (en) 1997-05-13
EP0697476B1 (fr) 1997-11-19
CZ9502015A3 (en) 1996-02-14
CZ287429B6 (en) 2000-11-15
CN1049027C (zh) 2000-02-02
CN1133358A (zh) 1996-10-16
DE4427875C1 (de) 1996-01-04
JPH0860457A (ja) 1996-03-05
EP0697476A3 (fr) 1996-05-01

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