EP3680372A1 - Banc d'étirage d'un métier à filer - Google Patents

Banc d'étirage d'un métier à filer Download PDF

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Publication number
EP3680372A1
EP3680372A1 EP20150725.8A EP20150725A EP3680372A1 EP 3680372 A1 EP3680372 A1 EP 3680372A1 EP 20150725 A EP20150725 A EP 20150725A EP 3680372 A1 EP3680372 A1 EP 3680372A1
Authority
EP
European Patent Office
Prior art keywords
traversing
fiber
guide
bearing
guide rail
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
EP20150725.8A
Other languages
German (de)
English (en)
Other versions
EP3680372B1 (fr
Inventor
Gernot Schaeffler
Gerd Stahlecker
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 EP3680372A1 publication Critical patent/EP3680372A1/fr
Application granted granted Critical
Publication of EP3680372B1 publication Critical patent/EP3680372B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H5/58—Arrangements for traversing drafting elements
    • 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
    • D01H5/46—Loading arrangements

Definitions

  • the present invention relates to a drafting system of a spinning machine with pairs of rollers, between which at least one fiber composite can be carried out and stretched, with a traversing device which comprises a traversing element and at least one fiber guide, wherein the at least one fiber guide can guide a fiber composite assigned to the fiber guide, the Traversing element in a traversing movement in relation to the roller pairs in the axial direction thereof, and wherein the at least one fiber guide is arranged on the traversing element, so that the at least one fiber composite can be traversed by means of the traversing movement of the fiber guide assigned to the fiber composite, with a compression device by means of which the drawn fiber composite can be compressed, and with at least one bearing in which at least the roller pairs, the traversing device and / or the compression device are mounted.
  • a drafting system of a spinning machine comprises pairs of rollers in order to be able to stretch a fiber composite.
  • the drafting system has a compression device, by means of which the fiber composite is compressed.
  • the fiber composite is oscillated relative to the roller pairs by means of a traversing device.
  • a drawback of such a drafting arrangement is that it is only possible to align fiber guides of the traversing device with respect to the compression device.
  • the object of the present invention is therefore to improve the prior art.
  • a drafting system of a spinning machine with pairs of rollers between which at least one fiber composite can be carried out and stretched is proposed. With the help of the pairs of rollers, the fiber composite is warped, whereby it is homogenized.
  • the pairs of rollers have an axial direction about which they can rotate. The axial direction of the roller pairs is preferably used as the reference direction in the drafting system.
  • the drafting system has a traversing device which comprises a traversing element and at least one fiber guide.
  • the at least one fiber guide can guide a fiber composite assigned to the fiber guide.
  • a fiber composite is therefore assigned to a fiber guide if there are several fiber guides and fiber composites.
  • the traversing element is oscillated in an axial movement relative to the roller pairs.
  • the at least one fiber guide is arranged on the traversing element, so that with the aid of the at least one fiber guide, the fiber composite is also traversed in the axial direction with respect to the roller pairs.
  • the drafting system has a compression device, by means of which the fiber composite which is already warped by the pairs of rollers can be compressed.
  • the fiber composite is thereby compacted so that it has a higher strength.
  • the drafting system also has at least one bearing in which at least the roller pairs are supported. Additionally or alternatively, the traversing device can also be mounted in the at least one bearing. In addition or alternatively, the compression device can also be stored in the at least one bearing. Parts of the units mentioned can also be stored in the at least one bearing.
  • the traversing device is arranged for storage in such a way that the at least one fiber guide can be displaced in the axial direction relative to the traversing element by means of the traversing movement on the at least one bearing, so that the at least one fiber guide can be aligned in the axial direction with respect to the compression device.
  • the at least one fiber guide can strike the bearing due to the traversing movement and can be moved on the bearing when the traversing movement has not yet ended.
  • the fiber guide can then only move relative to the traversing element.
  • the storage thus moves the fiber guide relative to the traversing element.
  • the shifting takes place until the traversing movement is reversed and the fiber guide thereby moves away from the storage again.
  • the traversing device and / or the traversing element is arranged at a distance from the bearing in the axial direction, so that at least a part of the traversing device can strike the bearing due to the traversing movement.
  • the bearing advantageously serves as a spatial reference point, in particular in the axial direction, in the drafting system, since the bearing itself is immobile or is stationary.
  • the fiber guide is aligned in the axial direction, as a result of which the fiber composite is also aligned in the axial direction in order to be able to process the fiber composite in an advantageous manner through the drafting system.
  • the at least one fiber guide is aligned with the compression device in the axial direction, so that the fiber composite is also aligned with the compression device.
  • Alignment of the fiber guide and thus the fiber composite is of course necessary if the fiber guide is not, for example to the compression device, is aligned.
  • a heat-related expansion or contraction of the traversing element on which the at least one fiber guide is arranged can cause the at least one fiber guide to move in the axial direction, so that it is no longer aligned with the compression device.
  • the at least one fiber guide has shifted in the axial direction due to the expansion, it runs onto the at least one bearing due to the traversing movement and shifts with respect to the traversing element during the further traversing movement. This shift compensates for the error if the fiber guide in this example is not aligned or not aligned with the compression device.
  • the at least one fiber guide is arranged on the traversing element in such a way that the at least one fiber guide can transmit the traversing movement to the assigned fiber composite and can be displaced in the axial direction for alignment when it runs onto the at least one bearing.
  • the at least one fiber guide is so firmly arranged on the traversing element that it can transmit the traversing movement oriented in the axial direction to the at least one fiber composite.
  • the at least one fiber guide is in particular not so loosely connected to the traversing element that the at least one fiber guide is displaced with respect to the traversing element by the at least one fiber composite.
  • the at least one fiber guide is not so firmly connected to the traversing element that it cannot be moved relative to the traversing element when it runs onto the bearing and as a result of the traversing movement.
  • the compression device has a suction pipe with at least one suction slit.
  • a vacuum is applied to the intake manifold. If the fiber composite runs through a suction slit, the fiber composite is sucked in and is thereby compacted.
  • the suction slot is also oriented obliquely to the running direction of the fiber composite, so that the fiber composite can run over a wide area over the suction slot. As a result, the fiber composite also runs over the suction slot when the fiber composite is changed.
  • the fiber composite is aligned with the suction slot, since it can otherwise happen that the fiber composite is at least temporarily arranged next to the suction slot during traversing. It is therefore advantageous if the at least one fiber guide is aligned with the suction slot.
  • the suction pipe is fixed to the bearing at least in the axial direction.
  • the suction pipe is in fixed relation to the at least one bearing, so that when the at least one fiber guide is aligned with the bearing, it is also automatically aligned with the suction pipe and the at least one suction slot.
  • the at least one fiber guide can be aligned with the associated suction slot.
  • the drafting arrangement has several, in particular eight, fiber guides, each fiber guide being assigned a fiber composite, and that the suction tube preferably has a suction slot for each fiber composite.
  • the number of fiber guides, fiber composites and suction slots is always the same.
  • Each fiber guide guides a fiber composite that runs through a suction slot.
  • any other compression unit for example a compression funnel, can also be used.
  • several fiber composites can be processed at the same time.
  • the drafting system is advantageously designed to be correspondingly wide.
  • the roller pairs have a corresponding length in order to be able to stretch eight fiber composites simultaneously, as here.
  • the suction pipe can also have a corresponding length.
  • the drafting system comprises a plurality of fiber guides, these are spaced apart from one another which corresponds to the spacing of the suction slots and / or other compression units from one another.
  • the at least one fiber guide is arranged on a guide rail which is arranged on the traversing element.
  • the at least one fiber guide is also arranged on the guide rail.
  • the guide rail and the at least one fiber guide or the plurality of fiber guides can be mounted as a unit on the traversing element and removed as a unit.
  • the traversing element and the guide rail can be oriented parallel to one another.
  • the at least one fiber guide and / or the guide rail is advantageously arranged on the traversing element with at least one coupling element. With the aid of the coupling element, the at least one fiber guide and / or the guide rail can also be spaced from the traversing element.
  • a strength of the fastening of the at least one fiber guide to the guide rail and / or a strength of the fastening of the guide rail to the traversing element and / or a strength of the fastening of the at least one fiber guide to the traversing element can be set by means of an adjusting device.
  • the adjusting device can be arranged on the at least one fiber guide, on the coupling element, on the guide rail and / or on the traversing element.
  • the adjusting device can comprise, for example, a screw in a thread. By tightening the screw, for example, the strength of the fastening between the guide rail and traversing element can be increased.
  • the guide rail with the at least one fiber guide arranged thereon can be moved more difficultly with respect to the traversing element.
  • the strength of the attachment between the guide rail and traversing element must not be too strong, so that the guide rail can no longer be moved from the mounting on the traversing element to align the at least one fiber guide.
  • the said strength of the attachment must not be too weak, because otherwise the at least one fiber guide can no longer transmit the traversing movement to the fiber composite.
  • the at least one fiber guide is fixedly arranged on the guide rail and the guide rail can be displaced in the axial direction with respect to the traversing element.
  • the at least one fiber guide then has a fixed spatial relationship with the guide rail.
  • only the guide rail on the bearing has to be displaced in order to align the at least one fiber guide.
  • This is particularly advantageous if several fiber guides are arranged on the guide rail, so that all fiber guides are aligned at the same time.
  • connection between the coupling element and the traversing element and / or the guide rail and / or the at least one fiber guide is designed as a slip clutch.
  • the slip clutch is designed such that the fiber composite does not move the at least one fiber guide with respect to the traversing element during traversing.
  • the at least one fiber guide can be displaced relative to the traversing element by the bearing.
  • the coupling element is arranged on the traversing element and / or on the guide rail by means of at least one spring element.
  • the coupling element can be pressed onto the traversing element and / or onto the guide rail.
  • the spring strength is preferably chosen so that the at least one fiber guide can be aligned with the bearing, but the fiber composite does not move the fiber guide in the axial direction during traversing.
  • the traversing element can move in the axial direction with respect to the at least one bearing.
  • the traversing element is mounted, for example, in its radial direction in the at least one bearing.
  • the traversing element can move freely in the axial direction relative to the bearing.
  • the bearing has a floating bearing for the traversing element, in which the traversing element can move in the axial direction, but is supported in the radial direction.
  • the drafting system advantageously has a first bearing and a second bearing spaced apart from it in the axial direction.
  • the roller pairs, the traversing device and / or the compression device, in particular the suction pipe are preferably mounted between the two bearings.
  • the two bearings thus limit the drafting system on both sides in the axial direction.
  • the drafting system with the two bearings on the two sides spaced apart in the axial direction is a so-called bearing field or punching field, the two bearings being punched.
  • the sum of a length of the guide rail and a length of a traversing stroke of the traversing movement corresponds to a bearing distance between the two mutually facing inner sides of the two bearings.
  • the traversing stroke corresponds to the movement between two reversal points of the traversing movement.
  • the length of the traversing stroke is the distance between the two reversal points of the traversing movement.
  • a first distance between a first end of the guide rail and the associated first bearing corresponds to half a traverse stroke.
  • a second distance between a second end of the guide rail for the associated second bearing corresponds to half a traverse stroke. In the middle position of the fiber composite, it runs exactly over the axial slot in the middle of the suction slot.
  • a fork element with a recess oriented in the axial direction is arranged on the at least one bearing and that a pin is arranged on the end of the guide rail facing the fork element, which protrudes into the recess and can move in the recess during a traversing movement.
  • the at least one fiber guide can be aligned more precisely with the compression device.
  • the recess in the axial direction has a width that corresponds to the sum of the length of the traversing stroke of the traversing movement and a pin width of the pin in the axial direction.
  • the two reversal points of the traversing movement can be placed exactly over the two inner sides of the recess. In the reversal points, the pin alternately abuts the two inner sides.
  • Figure 1 shows a schematic side view of a drafting system 1 of a spinning machine.
  • the drafting system 1 comprises pairs of rollers 2, 3, 4, between which a fiber composite 5 is passed and by means of which the fiber composite 5 can be stretched.
  • the roller pairs 2, 3, 4 are driven so that the fiber composite 5 is drawn through the drafting device 1 in a running direction LR.
  • the fiber composite 5 is warped, as a result of which the fiber composite 5 is homogenized.
  • the drafting system 1 has a traversing device 6 in order to traverse the fiber composite 5 in an axial direction X, not shown here, of the roller pairs 2, 3, 4.
  • the roller pairs 2, 3, 4 are thereby loaded over a wide area and cutting of the fiber composite 5 into the roller pairs 2, 3, 4 is prevented.
  • the traversing device 6 has a traversing element 7 (not shown here) (see the following figures) and at least one fiber guide 8.
  • the at least one fiber guide 8 introduces the fiber composite 5 into the drafting device 1, so that it runs in between the roller pairs 2, 3, 4.
  • the fiber composite 5 is also oscillated with the aid of the at least one fiber guide 8.
  • the at least one fiber guide 8 is designed, for example, as a funnel, so that the fiber guide 8 can guide the fiber composite 5 in any transverse direction of the fiber composite 5.
  • a compression device 9 is arranged downstream of the roller pairs 2, 3, 4 in the running direction LR of the fiber composite 5. With the help of the compression device 9, the fiber composite 5 is compressed so that it has a higher strength.
  • the compression device 9 also has a suction pipe 10 with at least one suction slot 11.
  • a suction pressure can be applied to the suction pipe 10, so that the fiber composite 5 is compressed when it is pulled over the at least one suction slot 11.
  • a spinning unit 12 is arranged, which spins a yarn from the fiber composite 5, which is wound onto a spool 13.
  • the spinning unit 12 is a spinning unit in the present exemplary embodiment, but can also be any other type of spinning unit.
  • the drafting system 1 has a pair of straps which comprises an upper strap 14 and a lower strap 15.
  • the upper strap 14 is also deflected by a deflection unit 16.
  • the lower strap 15 is deflected by a deflecting table 17 and a deflecting rod 18.
  • the pair of straps is between the first pair of rollers 2 and the second Roller pair 3 arranged.
  • the pair of straps can also be arranged between the second pair of rollers 3 and the third pair of rollers 4.
  • the pair of straps can also be arranged in the running direction LR of the fiber composite 5 after the third pair of rollers 4.
  • roller pairs 2, 3, 4 bottom rollers 2b, 3b, 4b are generally driven, so that the fiber composite 5 is drawn through the drafting device 1.
  • the upper rollers 2a, 3a, 4a of the roller pairs 2, 3, 4 are not driven, and rotate with them in that they rest on or are pressed onto the lower rollers 2b, 3b, 4b.
  • the drafting system 1 also has a clamping roller 19 which presses the fiber composite 5 onto the suction pipe 10 shown in this exemplary embodiment.
  • the top strap 14 is arranged around the top roller 3a and the bottom strap 15 around the bottom roller 3b of the second pair of rollers 3.
  • the drafting system 1 also comprises a pressure arm 20, on which the upper rollers 2a, 3a, 4a and the pinch roller 19 are arranged in the present exemplary embodiment.
  • the pressure arm 20 can be pivoted upward away from the lower rollers 2b, 3b, 4b with the rollers mentioned, for example in order to exchange components or to be able to insert the fiber composite 5 into the drafting device 1. If the component is replaced or the fiber composite 5 is inserted, the pressure warmer 20 can be swung down again so that the upper rollers 2a, 3a, 4a settle on the lower rollers 2b, 3b, 4b.
  • Figure 2 shows a schematic plan view of a section of a drafting device 1, with which, as shown here, at least two fiber composites 5a, 5b can be drawn.
  • the drafting system 1 could, however, only warp a fiber composite 5.
  • the drafting system 1 of the present exemplary embodiment is also open. That is, the pressure arm 20 is pivoted away from the lower rollers 2b, 3b, 4b.
  • Figure 2 thus shows a view of the lower rollers 2b, 3b, 4b, on which the fiber composites 5a, 5b rest.
  • the lower rollers 2b, 3b, 4b and preferably also the upper rollers 2a, 3a, 4a and the clamping roller 19 can extend in the axial direction X through the entire drafting arrangement 1.
  • the drafting system 1 thus only has a single lower roller 2b, 3b, 4b, upper roller 2a, 3a, 4a and pinch roller 19.
  • the drafting device 1 can also stretch several fiber composites 5 at the same time.
  • the drafting device 1 can advantageously be designed in such a way that it essentially means that it has such a length in the axial direction X that it can be used to stretch eight fiber composites 5.
  • the traversing device 6 has a traversing element 7, on which the fiber guides 5a, 5b are arranged.
  • the traversing element 7 can be moved by a drive, not shown here.
  • the traversing element 7 executes the traversing movement CB, which is advantageously oriented parallel to the axial direction X of the roller pairs 2, 3, 4.
  • the traversing movement CB is a back and forth movement.
  • the associated fiber composite 5a, 5b is also changed, so that the fiber composite 5a, 5b runs over a wide area between the roller pairs 2, 3, 4. This prevents the fiber composites 5a, 5b from being cut into the rollers 2a, 2b, 3a, 3b, 4a, 4b of the roller pairs 2, 3, 4.
  • the oscillating movement CB also has a first reversal point 21 and a second reversal point 22.
  • the distance between the two reversal points 21, 22 is a traversing stroke CH or the length of the traversing stroke CH.
  • a traversing stroke CH or the length of the traversing stroke CH.
  • the fiber composites 5a, 5b oscillate back and forth between the two reversal points 21, 22.
  • the suction slots 11a, 11b each have a central position M, which runs through a center in the axial direction X of the suction slots 11a, 11b.
  • the fiber composites 5a, 5b are optimally aligned with the assigned suction slots 11a, 11b if the reversal points 21, 22 have the same distances in the axial direction X to the central position M of the suction slots 11a, 11b.
  • the fiber composites 5a, 5b then oscillate evenly, i.e. equally far on both sides, around the middle positions M.
  • the fiber composites 5a, 5b oscillate around the central position M of the suction slots 11a, 11b, it is ensured that the fiber composites 5a, 5b are always arranged above the suction slots 11a, 11b during the oscillation. In particular, the fiber composites 5a, 5b do not oscillate in an area next to the suction slots 11a, 11b.
  • the fiber guides 8a, 8b can shift in the axial direction, so that they are no longer optimal to the compression device 9, in particular to the suction slots 11a, 11b, are aligned.
  • the fiber composites 5a, 5b no longer oscillate evenly around the central position of the suction slots 11a, 11b.
  • one of the two reversal points 21, 22 can then lie in the axial direction X next to the suction slot 11a, 11b, which is of course disadvantageous since the fiber composites 5a, 5b are no longer compressed there.
  • Another disadvantage is that the fiber guides 8a, 8b have to be arranged relatively precisely in the axial direction X and this is only possible with difficulty during assembly.
  • Figure 3 shows a schematic plan view of a section of the drafting device 1 with two fiber composites 5a, 5b and in this exemplary embodiment two bearings 23, 24.
  • the drafting device 1 can also have only a single bearing 23, 24.
  • the traversing device 6 is arranged for at least one bearing 23, 24 such that the at least one fiber guide 8a, 8b can be displaced in the axial direction X relative to the traversing element 7 by means of the traversing movement CB on the at least one bearing 23, 24, so that the at least one fiber guide 8a, 8b can be aligned in the axial direction X with respect to the compression device 9.
  • the at least one fiber guide 8a, 8b is aligned with the assigned suction slots 11a, 11b.
  • the fiber composites 5a, 5b always oscillate evenly around the central position M of the suction slots 11a, 11b. If the fiber composites 5a, 5b change evenly around the central position M of the suction slot 11a, 11b, the two reversal points 21, 22 are at the same distance from the central position M.
  • the lower rollers 2b, 3b, 4b are rotatably mounted. Additionally or alternatively, the suction pipe 10 of the compression device 6 is arranged on the bearings 23, 24.
  • the suction slots 11a, 11b of the suction pipe 10 thus have a fixed spatial relationship with the bearings 23, 24.
  • the bearings 23, 24 can thus serve as a reference point for the drafting system 1.
  • the two bearings 23, 24 each have a floating bearing 32, 33, in which the traversing element 7 can move freely in the axial direction X. However, it is guided in the floating bearings 32, 33 in a radial direction of the traversing element 7.
  • the two floating bearings 32, 33 can be designed, for example, as bores in the bearings 23, 24. A frictional resistance between the traversing element 7 and the two floating bearings 32, 33 should not be too great, so that the traversing element 7 can be traversed with a small force, in particular tensile force.
  • the two bearings 23, 24 also have mutually facing inner sides 30, 31.
  • the two inner sides 30, 31 of the two bearings 23, 24 also have a bearing spacing A from one another.
  • the bearing distance A is thus the clear distance between the two bearings 23, 24.
  • the traversing device 6 has a guide rail 25 on which the at least one fiber guide 5a, 5b is arranged.
  • the guide rail 25 also has a first end 28 and a second end 29.
  • the first end 28 faces the first bearing 23 and the second end 29 of the second bearing 24.
  • the guide rail 25 is arranged on the traversing element 7 by means of at least one coupling element 26, 27.
  • the guide rail 25 is arranged on the traversing element 7 with two coupling elements 26, 27. As a result, the guide rail 25 cannot inadvertently rotate relative to the traversing element 7.
  • the fiber guides 8a, 8b are aligned with the suction slots 11a, 11b.
  • the fiber guides 8a, 8b oscillate on both sides at equal intervals around the central position M of the suction slot 11a, 11b. This means that the two reversal points 21, 22 of the traversing movement CB each have the same distances from the center position M. As a result, the distance between the reversal points 21, 22 and the central position M is half a traverse stroke CH or its length.
  • the guide rail 25 has a length L in the axial direction X.
  • the bearing distance A of the bearings 23, 24, the distance of the traversing stroke CH and the length L of the guide rail 25 are advantageously related to one another. It is advantageous if the sum of the length L of the guide rail 25 and the distance of the traversing stroke CH is equal to the bearing distance A of the bearings 23, 24.
  • the first end 28 of the guide rail 25 abuts the first inner side 30 of the first bearing 23 when the traversing movement CB and thus the fiber composite 5a, 5b is at the first reversal point 21.
  • the second end 29 of the guide rail 25 abuts the second inner side 31 of the second bearing 24 when the traversing movement CB and thus the fiber composite 5a, 5b is in the second reversal point 22.
  • the first distance A1 is half a traverse stroke CH or half the length or distance of the traverse stroke CH.
  • the second distance A2 is half a traverse stroke CH or half the length or distance of the traverse stroke CH.
  • the fiber guides 8a, 8b shift in the axial direction X relative to the compression device 9.
  • the fiber guides 8a, 8b thereby shift either in the direction of the first bearing 23 or the second bearing 24.
  • One reversal point 21, 22 will be further away from the center position M than the other reversal point 21, 22. In the worst case, one of the two reversal points 21, 22 lies next to the suction slot 11a, 11b.
  • the guide rail 25 when it is in contact with the first inner side 30 of the first bearing 23, is displaced in the axial direction X with respect to the traversing element 7. This shift continues until the traversing movement CB has reached the first reversal point 21 and moves away from the first bearing 23 again.
  • the traversing movement CB moves the guide rail 25 towards the second bearing 24 until the traversing movement CB has reached the second reversal point 22.
  • the second end 29 of the guide rail 25 will abut the second inside 31 of the second bearing 24.
  • the guide rail 25 can align itself on the second inner side 31 if, after the second end 29 has hit the second inner side 31, the second reversal point 22 of the oscillating movement CB has not yet been reached.
  • Figure 4 shows a schematic section of an embodiment of the drafting system 1 with a fork element 34 on a bearing 24, here the second bearing 24, and a pin 36 on the guide rail 25.
  • the fork element 34 is arranged here on the inside 31 of the second bearing 24 and extends from there in the axial direction X.
  • the fork element 34 also has a recess 35 oriented in the axial direction X, which is delimited by two stops 37, 38 in the axial direction X.
  • the guide rail 25 also has a pin 36 which projects into the recess 35 and is arranged in particular between the two stops 37, 38.
  • the pin 36 is arranged on the second end 29 of the guide rail 25.
  • a width B of the recess 35 in the axial direction X advantageously corresponds to a sum of a pin width Z of the pin 36 in the axial direction X and the length of the traversing stroke CH.
  • the pin 36 abuts the associated stops 37, 38 in the respective reversal points 21, 22 of the traversing movement CB when the fiber guide 8 is aligned with the suction slot 11. If, however, the fiber guide 8 is not aligned with the suction slot 11, the pin 36 abuts one of the two stops 37, 38, the associated reversal point 21, 22 not having been reached yet. After bumping against one of the stops 37, 38, the guide rail 25 is displaced relative to the traversing element 7 until the fiber guide 8 is again aligned with the suction slot 11.
  • Figure 5a shows a cross section through the traversing element 7 with the guide rail 25 coupled thereto.
  • the guide rail 25 is thereby by means of a coupling element 26, 27 (cf. Figure 3 , 4th ) coupled to the traversing element 7.
  • the coupling element 26, 27 comprises a holder 39 which is arranged on the traversing element 7 by means of a screw 41.
  • the holder 39 is thus firmly connected to the traversing element 7.
  • the coupling element 26, 27 further comprises a spring element 40 which presses the guide rail 25 against the holder 39.
  • the guide rail 25 is displaceable in the axial direction X relative to the holder 39.
  • the spring element 40 is of such a strength that the fiber guide 8 does not move the guide rail 25 with respect to the holder 39 and thus with respect to the traversing element 7 when the fiber composite 5 is traversed.
  • the strength of the spring element 40 is dimensioned such that the guide rail 25 can be displaced on the at least one bearing 23, 24 in order to align the fiber guide 8 with the compression device 9.
  • the spring element 40 presses the guide rail 25 against the holder 39 from the inside.
  • the spring element 40 is arranged such that it presses the guide rail 25 away from the traversing element 7.
  • the spring element 40 can be designed, for example, as a leaf spring or as a coil spring.
  • the spring element 40 can also be an elastic body.
  • the holder 39 or at least the surfaces on which the guide rail 25 rests on the holder 39 is preferably made of a wear-resistant plastic, so that the holder 39 is not worn when the guide rail 25 is moved.
  • Figure 5b shows an alternative embodiment of the coupling of the guide rail 25 to the traversing element 7.
  • the spring element 40 is designed as a leaf spring and is fixedly arranged on the traversing element 7 by means of the screw 41.
  • the spring element 40 here presses the guide rail 25 in the direction of the traversing element 7.
  • a spacer 42 is arranged here between the guide rail 25 and traversing element 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP20150725.8A 2019-01-11 2020-01-08 Banc d'étirage d'un métier à filer Active EP3680372B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019100603.1A DE102019100603A1 (de) 2019-01-11 2019-01-11 Streckwerk einer Spinnereimaschine

Publications (2)

Publication Number Publication Date
EP3680372A1 true EP3680372A1 (fr) 2020-07-15
EP3680372B1 EP3680372B1 (fr) 2023-04-05

Family

ID=69147558

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Application Number Title Priority Date Filing Date
EP20150725.8A Active EP3680372B1 (fr) 2019-01-11 2020-01-08 Banc d'étirage d'un métier à filer

Country Status (3)

Country Link
EP (1) EP3680372B1 (fr)
CN (1) CN111411428B (fr)
DE (1) DE102019100603A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363574A1 (fr) * 1988-09-27 1990-04-18 Zinser Textilmaschinen GmbH Procédé et dispositif pour enfiler une mèche dans un système d'étirage
DE4227492A1 (de) * 1992-08-20 1994-02-24 Fritz Stahlecker Faserbandführungsvorrichtung für Streckwerke von Spinnereimaschinen
DE4227491A1 (de) * 1992-08-20 1994-02-24 Stahlecker Fritz Faserbandführungsvorrichtung für Streckwerke von Spinnereimaschinen
DE10033188A1 (de) * 2000-07-07 2002-01-17 Stahlecker Fritz Vorrichtung zum Verstrecken und Verdichten eines Faserverbandes
DE10051413A1 (de) * 2000-09-01 2002-03-14 Rieter Ag Maschf Spinnmaschine mit einer Verdichtungseinrichtung
DE202007011954U1 (de) * 2007-08-23 2007-10-18 Wilhelm Stahlecker Gmbh Streckwerk und Unterwalzen-Lagerschlitten
CN201686791U (zh) * 2010-04-06 2010-12-29 东飞马佐里纺机有限公司 具有均衡喂入钳口握持力的纺纱横动机构
CN201686788U (zh) * 2010-04-06 2010-12-29 东飞马佐里纺机有限公司 多股纺纱装置
DE102015117938A1 (de) 2015-10-21 2017-04-27 Maschinenfabrik Rieter Ag Verfahren zum Austauschen von Unterriemchen eines Streckwerkes einer Spinnmaschine und Spinnmaschine
DE102017113045A1 (de) * 2016-06-23 2017-12-28 Maschinenfabrik Rieter Ag Changiervorrichtung für ein Streckwerk einer Textilmaschine sowie ein Verfahren für deren Betrieb

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10133604A1 (de) * 2001-07-13 2003-02-06 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Hin- und Herbewegen von Luntenführern
CN100402722C (zh) * 2001-11-16 2008-07-16 里特机械公司 牵伸和集合纤维条的装置
CH704671A2 (de) * 2011-03-21 2012-09-28 Rieter Ag Maschf Streckwerk mit Verdichtungsvorrichtung an einer Spinnmaschine.
CN202347180U (zh) * 2011-10-19 2012-07-25 武汉纺织大学 一种用于柔洁纺纱的同步横动装置
DE102013112941A1 (de) * 2013-10-28 2015-04-30 Maschinenfabrik Rieter Ag Spinnmaschine
DE102015111133A1 (de) * 2015-07-09 2017-01-12 Maschinenfabrik Rieter Ag Spinnmaschine, Führungsstange und Riemchen

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0363574A1 (fr) * 1988-09-27 1990-04-18 Zinser Textilmaschinen GmbH Procédé et dispositif pour enfiler une mèche dans un système d'étirage
DE4227492A1 (de) * 1992-08-20 1994-02-24 Fritz Stahlecker Faserbandführungsvorrichtung für Streckwerke von Spinnereimaschinen
DE4227491A1 (de) * 1992-08-20 1994-02-24 Stahlecker Fritz Faserbandführungsvorrichtung für Streckwerke von Spinnereimaschinen
DE10033188A1 (de) * 2000-07-07 2002-01-17 Stahlecker Fritz Vorrichtung zum Verstrecken und Verdichten eines Faserverbandes
DE10051413A1 (de) * 2000-09-01 2002-03-14 Rieter Ag Maschf Spinnmaschine mit einer Verdichtungseinrichtung
DE202007011954U1 (de) * 2007-08-23 2007-10-18 Wilhelm Stahlecker Gmbh Streckwerk und Unterwalzen-Lagerschlitten
CN201686791U (zh) * 2010-04-06 2010-12-29 东飞马佐里纺机有限公司 具有均衡喂入钳口握持力的纺纱横动机构
CN201686788U (zh) * 2010-04-06 2010-12-29 东飞马佐里纺机有限公司 多股纺纱装置
DE102015117938A1 (de) 2015-10-21 2017-04-27 Maschinenfabrik Rieter Ag Verfahren zum Austauschen von Unterriemchen eines Streckwerkes einer Spinnmaschine und Spinnmaschine
DE102017113045A1 (de) * 2016-06-23 2017-12-28 Maschinenfabrik Rieter Ag Changiervorrichtung für ein Streckwerk einer Textilmaschine sowie ein Verfahren für deren Betrieb

Also Published As

Publication number Publication date
CN111411428A (zh) 2020-07-14
CN111411428B (zh) 2023-04-18
DE102019100603A1 (de) 2020-07-16
EP3680372B1 (fr) 2023-04-05

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