EP3159438A1 - Procédé d'échange d'une lanière inférieure d'un métier à filer et métier à filer - Google Patents

Procédé d'échange d'une lanière inférieure d'un métier à filer et métier à filer Download PDF

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Publication number
EP3159438A1
EP3159438A1 EP16193672.9A EP16193672A EP3159438A1 EP 3159438 A1 EP3159438 A1 EP 3159438A1 EP 16193672 A EP16193672 A EP 16193672A EP 3159438 A1 EP3159438 A1 EP 3159438A1
Authority
EP
European Patent Office
Prior art keywords
fiber
rollers
unterriemchen
drafting
fiber composite
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Withdrawn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
EP16193672.9A
Other languages
German (de)
English (en)
Inventor
Wolfgang Lehner
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 EP3159438A1 publication Critical patent/EP3159438A1/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Withdrawn legal-status Critical Current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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D01H13/06—Traversing arrangements
    • 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
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements

Definitions

  • the invention relates to a method for exchanging Unterriemchen a drafting of a spinning machine with a plurality of juxtaposed spinning stations, each spinning station has a drafting system for stretching a fiber composite and a spindle for producing a yarn, wherein two adjacent drafting systems have a common pressure arm, on the top rollers and top aprons are arranged and the upper rollers cooperate with lower, driven shafts and the upper belts cooperate with lower belts which are driven by a drive shaft and guided over a Riemchen Entry and a fiber guide is provided for guiding the fiber composite to guide the fiber composite in a fiber line through the drafting and the fiber guides in that the rollers and the straps are arranged relative to one another in such a way that the fiber line of the fiber composite is laterally offset with respect to a central circumferential line of the lower apron and preferably also of the upper rollers and / or upper apron of the drafting system and a corresponding spinning machine.
  • An inventive method for exchanging Unterriemchen a drafting of a spinning machine has a plurality of juxtaposed, arranged spinning stations. At each spinning station is a drafting system for stretching a fiber composite and a spindle for producing a yarn.
  • Two adjacent drafting systems have a common pressure arm, on which top rollers and top aprons are arranged. The upper rollers cooperate with lower, driven shafts and the upper aprons cooperate with Unterriemchen, which are driven by a drive shaft and guided over a Riemchen entry.
  • There is a fiber guide provided for guiding the fiber composite to guide the fiber composite in a fiber line through the drafting system.
  • the fiber guide, the rollers and the straps are arranged to each other such that the fiber line of the fiber composite at a distance laterally offset to a central circumferential line of the Unterriemchens and preferably also the upper rollers and / or the upper apron of the drafting system is located.
  • the Unterriemchen adjacent drafting systems in particular adjacent drafting systems of a pressure arm having a mutually different distance of the fiber line of the fiber composite from the central circumference of the Unterriemchens and preferably also the upper rollers and / or Oberriemchens the drafting, along the drive shaft and the Riemchen Entry by one another pushed through.
  • the sub-straps do not have to be unthreaded from the drive shaft and the strapping guide and re-threaded.
  • the drive shaft and Riemchen Entry remain installed and the replacement can be done very quickly.
  • the Unterriemchen are preferably relaxed and / or drawn into an area in which the drive shaft has a smaller diameter than in the working area of the Unterriemchens under Oberriemchen.
  • the Unterriemchen is relaxed and the Unterriemchen the other side can be threaded through the Unterriemchen the first side or the Unterriemchen the first side is pushed over the Unterriemchen the second side. Subsequently, the two Unterriemchen be brought back into the area under the respective Oberriemchen and possibly tensioned. The change of Unterriemchen can be done very quickly with this method.
  • the fiber composite is compacted following the drafting system.
  • a compression device of the fiber composite runs only in a small width through the drafting system.
  • An optionally existing traversing device changes the fiber composite only slightly, which is why the existing width of the pressure rollers and straps in the drafting system does not have to be utilized. This is the reason why the invention is particularly advantageous in such an application.
  • top rollers of adjacent drafting systems of a pressure arm are turned over, so that they are arranged after being folded on the other side of the pressure arm, not only the aprons but also the top rollers are kept ready for use longer. Similarly, the upper aprons can be changed from one side to the other side.
  • the invention can be used particularly advantageously.
  • Eight Unterriemchen or eight spinning stations are often arranged in a punching field, which is why the drive shaft and the Riemchen entry usually run through the entire punching field.
  • the Aus- and threading the Unterriemchen along this length and in particular the removal of the drive shaft and the Riemchen arrangement is particularly time consuming.
  • the traversing area is arranged outside the central circumferential line.
  • Straps and rollers are in this case as good as new. The service life of the aprons and rollers can thus almost be doubled.
  • a spinning machine has a multiplicity of spinning stations arranged next to one another. At each spinning station are a drafting system for stretching a fiber composite and a spindle for producing a yarn.
  • Two adjacent drafting systems have a common pressure arm, on which top rollers and top aprons are arranged. The upper rollers cooperate with lower, driven shafts and the upper aprons cooperate with Unterriemchen who over a drive shaft driven and guided over a Riemchen Entry, in particular a Umlenktisch and a deflection bar.
  • There is a fiber guide provided for guiding the fiber composite to guide the fiber composite through the drafting system.
  • the fiber guide, the rollers and the straps are arranged to each other such that the fiber line of the fiber composite is at a distance laterally offset from a central circumferential line of the Unterriemchens and preferably also the upper rollers and / or the upper apron of the drafting system.
  • the drive shaft and the Riemchen arrangement in the drafting systems are freely continuous, so that the Unterriemchen adjacent drafting systems, which have a mutually different distance of the fiber line of the fiber composite from the central circumference of the Unterriemchens and preferably also the upper rollers and / or the upper apron of the drafting system, along the drive shaft and the Riemchen entry by pushing through each other are interchangeable.
  • the straps which are to be exchanged with each other, there are no components which could hinder a shifting of the straps.
  • the straps can be moved laterally without removing the drive shaft and the Riemchen arrangement. By interdigitating or threading through the positions along the drive shaft and the Riemchen Entry can be changed. As a result, newly assigned fiber lines can be assigned to the unused areas of the straps.
  • a compression device for compressing the stretched fiber composite is arranged following the drafting arrangement.
  • Corresponding compaction devices can be equipped with various devices for compacting the drawn fiber composite.
  • a Siebriemchen or a perforated or longitudinally perforated straps may be arranged, which on the one hand sucks the fiber composite, but on the other hand also prevents fibers from being sucked into the suction slot.
  • the suction slot is arranged within a screen roller, which basically fulfills the same task as the screen belt.
  • the top rollers of adjacent drafting systems of a pressure arm are fixed in a turn-over manner on the pressure arm, so that they are arranged after being turned over on the other side of the pressure arm.
  • the top rollers of adjacent drafting systems are usually arranged as connected pairs on the pressure arm. When overturning, the top roller pairs remain e.g. in the same pressure arm, but are delivered from the first spinning position of the pressure arm of the second, adjacent spinning position of the pressure arm. Again, in another fiber line of the fiber composite in the two spinning stations, the load and, accordingly, the wear of the top roller at a different location. The complete replacement of upper roller or the grinding of the roller covers can thus be delayed.
  • the drive shaft of the Unterriemchen along a plurality, in particular along eight spinning stations.
  • Eight Unterriemchen or eight spinning stations are often arranged in a punching field.
  • the drive shaft and the Riemchen entry usually extend through the entire punching field.
  • the Aus- and threading the Unterriemchen along this length and in particular the removal of the drive shaft and the Riemchen entry would be particularly time-consuming, which is why the present invention is particularly advantageous.
  • the top rollers and the straps are subjected to less load. It is essential, however, that when changing the position by replacing the top rollers and the straps wear points at another axial point of the top rollers and the straps occur and they remain longer operational.
  • FIG. 1 shows a side view of a spinning station 1 in a schematic representation.
  • the spinning station 1 has a drafting system 2, a compression device 3 and a spindle unit 4.
  • the compression device 3 is optional, that is, the present invention is advantageously used without a compression device 3.
  • a fiber composite 5 is conveyed through the compression device 3 in the spindle unit 4 and spun into a yarn.
  • a fiber guide 10 is arranged at the entrance of the drafting system 2.
  • the drafting system 2 also further fiber guides, which are not shown here, can be arranged.
  • the last arranged fiber guide 10 is decisive for how or where the fiber composite 5 enters the compression device 3 and exits the drafting system 2.
  • Each pair of rollers points an upper and a lower roller.
  • the compression device 3 with a pinch roller 15, a hollow section 11, a wire strapping 12 and a deflection guide 13 is arranged.
  • the pinch roller 15 is driven in the embodiment shown here with a belt or alternatively, for example.
  • a suction slot 14 is provided in the hollow section 11.
  • In the hollow section 11 there is negative pressure, whereby the fiber composite 5 is sucked to the apertured Siebriemchen 12 in the region of the suction slot 14.
  • the fibers of the fiber composite 5 are compacted at this point.
  • the upper rollers of the input and the output roller pair 6, 9, the Oberriemchen 8 and pinch roller 15 are connected to a pressure arm 16.
  • the pressure arm 16 carries the top rollers and the top aprons 8 and the pinch rollers 15 of the compression means 3 of two adjacent drafting units 2 of adjacent spinning units 1.
  • the top rollers and the pinch roller 15 can be removed individually from the pressure arm 16 and, for example, handled. This means that the axes of the upper rollers and the pinch roller 15 are rotated by 180 ° about the center line of the pressure arm 16, so that then the upper rollers and the pinch roller 15 are assigned to their respective adjacent spinning station 1.
  • the two spinning stations 1 are spaced apart at a distance of a spindle pitch ST. Center line to the spindle pitch ST is the center line M (see FIG. 2 ) of the pressure arm 16.
  • the lower rollers of the pair of input rollers 6 and the pair of output rollers 9 are driven shafts which run along a plurality of spinning stations 1.
  • the Unterriemchen 7 is driven by a drive shaft 17.
  • the Unterriemchen 7 is further deflected by a Riemchen Entry, here by a deflecting table 18 and a deflection bar 19.
  • Drive shaft 17, Umlenktisch 18 and deflecting 19 also extend along a plurality of spinning stations 1.
  • different spinning stations 1 to swap with each other without drive shaft 17, Umlenktisch 18 and deflecting 19 must be removed, they are free in the drafting 2 continuous, that is, there are no bearings or holders between the respective spinning stations 1 available, which could hinder a back and forth of the individual Unterriemchen 7 from a spinning station 1 to another spinning station 1. Only after a certain number of spinning stations 1, preferably after eight spinning stations 1, which between punching 22 ( FIG. 5 ) are arranged, required bearings and holders are arranged. Within this so-called punching field, the Unterriemchen 7 can be exchanged for each other.
  • the replacement is done according to the invention such that the Unterriemchen 7 adjacent drafting units 2 along the drive shaft 17 and the Riemchen Replacement are interchanged by pushing one another.
  • straps 7 with wear on the right side are used in spinning stations 1 with a fiber run 20 (FIG. FIG. 2 ) on the left side of the strap 7 and vice versa.
  • FIG. 2 shows a schematic representation of two of a spindle line SL or SL 'spaced fiber runs 20 and 20'.
  • the spindle line SL in each case designates the straight course through the drafting unit 2 into the spindle unit 4 and here coincides with a central circumferential line of the lower aprons 7.
  • the fiber guide 10 is spaced at a distance A from the spindle line SL.
  • the fiber barrel 20' is to the right of the spindle line SL '.
  • the fiber strand 20 is to the left of the spindle line SL.
  • the entrance area the compression device 3, from which only the suction slot 14 is shown here for reasons of clarity, is spaced substantially at this distance A from the spindle line SL or SL '.
  • the distances A and A 'of the spindle line SL and SL' are therefore different, at least in terms of their sign.
  • the amount of the distance A is preferably equal to the amount of the distance A '.
  • the distance A should be so great that the wear occurring on the rollers and the straps is far enough away from the spindle line SL or SL 'that when the top rollers 6, 9 and 6', 9 'are turned over and the two interchanged adjacent Oberriemchen 8, 8 'and the adjacent Unterriemchen 7, 7' of the resulting wear spaced from the first incurred wear.
  • the outlet of the suction slots 14 is located near the spindle line SL, preferably about 1 mm thereof.
  • a center line M denotes the position of the pressure arm 16 (see FIG. 1 ).
  • the associated lower rollers are generally continuous shafts, which are often corrugated in the areas of their top rollers.
  • the fiber guides 10, 10 ' can also be made iridescent.
  • the fiber guides 10, 10 ' transversely to the fiber barrel 20, 20' reciprocated.
  • the traversing should also take place preferably with respect to a central circumferential line UL, UL 'only on one side of the rollers 6, 6' or 9, 9 'and the straps 7, 7' and 8, 8 ', so that the Fiber barrel 20, 20'only located on this one side.
  • FIG. 3 shows similar to in FIG. 2 two adjacent spinning stations 1 and 1 'of a pressure arm 16, the center line M is located.
  • the fiber barrel 20, 20 ' is carried out in this embodiment in a conventional manner.
  • the fiber guide 10, 10 ' is accordingly arranged in the immediate vicinity of the spindle line SL, SL'.
  • the wear in or in the immediate vicinity of the central perimeter UL, UL 'of the rollers and straps 7, 8 and 7 ', 8' arise.
  • the wear would not be so far away that it would no longer influence the fiber composite 5, 5 '.
  • the fiber composite 5, 5 ' is of course not as narrow as the line width shown here, but has a certain lateral spread.
  • the wear is not only linear, but also spreads laterally in the plastic lining of the top roller 9, apron 7, 8 and pinch roller 15. As a result, the influence of the original wear on the new fiber barrel 20 would be so strong that the spinning would be almost impossible in a turn of the rollers.
  • the spindle line SL, SL ' is offset by the distance A, A' from the central circumferential line UL, UL '.
  • the wear is thus also offset laterally.
  • This distance A, A ' is in turn such that, even when the rolls 6, 9 are folded over the center line M and the strips 7, 8 are exchanged, the renewed wear or the thread run 20 is spaced at a distance A, A' on the rolls 6 , 9, the straps 7, 8 and the pinch roller 15, which is clearly spaced from the original fiber run 20.
  • a traverse path C is usually further in a conventional spinning machine 1, for example, 16 mm, and less far in a spinning machine 1 with a compression device 3, for example, 6 mm.
  • the distance B of the traverse path C from the central perimeter UL should be sufficient that the first use does not overlap with the second use.
  • a distance B greater than 2 mm is advantageous. The larger the corresponding distance B, the safer the person skilled in the art can be that influencing the old traces of wear on the new fiber barrel 20 does not take place.
  • FIG. 4 is outlined how the Unterriemchen 7 and 7 'along the drive shaft 17 and the Riemchen Entry or the Umlenk ceremonies 18 and the deflection bar 19 are interchanged by pushing through one another. If necessary, the straps 7 and 7 'by moving one of the components drive shaft 17, deflecting 18 and / or deflecting 19 only relaxed. Then there is sufficient space between the first Unterriemchen 7 and the second Unterriemchen 7 'to thread the second Unterriemchen 7' under the first Unterriemchen 7 therethrough.
  • FIG. 5 shows the schematic plan view of four pressure arms 16 with eight spindle lines SL and SL '.
  • the pressure arms 16 is assigned a hollow profile 11.
  • suction slots 14 are provided, which are inclined from left to right and other suction slots 14 ', which are inclined from right to left.
  • the fiber run 20 or 20 ' is hereby also set by a corresponding arrangement of the fiber guides 10 on the left or 10' to the right of the spindle line SL or SL '.
  • the rollers and straps 7, 8 and 7 ', 8' are accordingly applied to the right and left of their central line UL, which coincides with the spindle line SL, of the fibers and worn at this point accordingly.
  • the respective fiber guides 10 are connected to a connecting rod 21 in order to set and change them together.
  • the shafts of the lower rollers 6 and 9 and the drive shaft 17, deflecting table 18 and deflection bar 19 are each secured in a punch 22, which terminates a section of the spinning machine.
  • Upper rollers 6 and 9 and the pinch roller 15, not shown here, can be exchanged either by turning over on the same pressure arm 16 or the pressure arm 16, which has the same offset of the fiber barrel 20.
  • the top roller pairs 9 but also the adjacent section can be delivered in an exchange. Again, the new wear points will occur offset to the previous, old wear points.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP16193672.9A 2015-10-21 2016-10-13 Procédé d'échange d'une lanière inférieure d'un métier à filer et métier à filer Withdrawn EP3159438A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015117938.5A DE102015117938A1 (de) 2015-10-21 2015-10-21 Verfahren zum Austauschen von Unterriemchen eines Streckwerkes einer Spinnmaschine und Spinnmaschine

Publications (1)

Publication Number Publication Date
EP3159438A1 true EP3159438A1 (fr) 2017-04-26

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EP16193672.9A Withdrawn EP3159438A1 (fr) 2015-10-21 2016-10-13 Procédé d'échange d'une lanière inférieure d'un métier à filer et métier à filer

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EP (1) EP3159438A1 (fr)
CN (1) CN106948046A (fr)
DE (1) DE102015117938A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019100603A1 (de) 2019-01-11 2020-07-16 Maschinenfabrik Rieter Ag Streckwerk einer Spinnereimaschine
CN113481633B (zh) * 2021-06-23 2022-04-15 无锡长江精密纺织有限公司 一种便于调节的牵伸机构及其环锭纺细纱机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331518A1 (de) * 1982-09-02 1984-03-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Spannvorrichtung fuer ein riemchenstreckwerk
DE3942849C1 (en) * 1989-12-23 1991-05-29 Skf Textilmaschinen-Komponenten Gmbh, 7000 Stuttgart, De Bottom apron holder for a spinning machine - incorporates a middle roll and bottom apron is driven from a bottom roll round 2 guide edges etc.
DE102013112941A1 (de) 2013-10-28 2015-04-30 Maschinenfabrik Rieter Ag Spinnmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906789C (de) * 1942-05-23 1954-03-18 Hermann Kluftinger Dipl Ing Riemchen-Streckwerk
DE19547462C2 (de) * 1995-12-19 2002-07-18 Zinser Textilmaschinen Gmbh Streckwerk für Spinnereimaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331518A1 (de) * 1982-09-02 1984-03-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Spannvorrichtung fuer ein riemchenstreckwerk
DE3942849C1 (en) * 1989-12-23 1991-05-29 Skf Textilmaschinen-Komponenten Gmbh, 7000 Stuttgart, De Bottom apron holder for a spinning machine - incorporates a middle roll and bottom apron is driven from a bottom roll round 2 guide edges etc.
DE102013112941A1 (de) 2013-10-28 2015-04-30 Maschinenfabrik Rieter Ag Spinnmaschine

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DE102015117938A1 (de) 2017-04-27
CN106948046A (zh) 2017-07-14

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