EP3656899A1 - Compresseur pour un banc d'etirage d'une machine textile - Google Patents

Compresseur pour un banc d'etirage d'une machine textile Download PDF

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Publication number
EP3656899A1
EP3656899A1 EP19209689.9A EP19209689A EP3656899A1 EP 3656899 A1 EP3656899 A1 EP 3656899A1 EP 19209689 A EP19209689 A EP 19209689A EP 3656899 A1 EP3656899 A1 EP 3656899A1
Authority
EP
European Patent Office
Prior art keywords
compressor
compressor unit
drafting
traversing
compressors
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
EP19209689.9A
Other languages
German (de)
English (en)
Other versions
EP3656899B1 (fr
EP3656899B8 (fr
Inventor
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.)
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 EP3656899A1 publication Critical patent/EP3656899A1/fr
Publication of EP3656899B1 publication Critical patent/EP3656899B1/fr
Application granted granted Critical
Publication of EP3656899B8 publication Critical patent/EP3656899B8/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
    • D01H5/70—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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • the present invention relates to a compressor unit for a drafting system of a textile machine with at least one compressor, the compressor having a base body on which a support surface for a drafting device roller and at least one compression surface for a fiber sliver warped by the drafting device are arranged.
  • a compressor unit for a drafting system of a textile machine with at least one compression channel for a fully warped fiber structure is known.
  • the compressor unit also has at least one means for coupling the compressor unit to a traversing device which can move along the drafting rollers.
  • the disadvantage of this is that the compressor unit is structurally complex.
  • the object of the present invention is therefore to simplify the compressor unit.
  • a compressor unit for a drafting system of a textile machine with at least one compressor comprises a base body, on which a bearing surface for a drafting roller is arranged.
  • the support surface faces the drafting unit roller when the compressor unit is used as intended.
  • the bearing surface can be curved so that it can nestle against a lateral surface of the drafting roller.
  • the compressor comprises at least one compression surface arranged on the base body for a fiber sliver warped by the drafting system.
  • the at least one compression surface is arranged in such a way that the fiber sliver strikes the compression surface at an angle, so that when the fiber sliver runs past the compression surface, it is compacted or combined.
  • the compressor can also have a compression channel which has the at least one compression surface.
  • the compression channel can also have two compression surfaces spaced apart from one another, which can converge, for example, in a funnel shape.
  • the at least one compressor has a coupling device arranged on the base body, by means of which the compressor can be coupled to a traversing device.
  • the compressor can be coupled directly to the traversing device with the aid of the coupling device.
  • the coupling device can be arranged in and / or on the compressor.
  • the compressor can be detachably coupled to the traversing device by means of the coupling device. This makes it possible for the compressor unit, for example, to be pivoted away from the traversing device and from the drafting system.
  • the compressor can be traversed in an axial direction of the drafting system rollers. Due to the oscillation of the compressor, the fiber sliver is also moved back and forth between the drafting system, so that consequently the fiber band is prevented from being cut into the drafting system rollers.
  • the compressor has the coupling device, via which the traversing device can be coupled to the compressor, the latter can be moved directly.
  • the component with the traversing device thus becomes immediate coupled, which is to be changed.
  • the compressor unit and the traversing device and their interaction can be particularly simplified as a result.
  • the compressor unit has at least a first and a second compressor which are spaced apart from one another in the axial direction of the drafting roller.
  • the two compressors are thus arranged side by side. With the two compressors, two fiber slivers running parallel to one another can thus be processed with the compressor unit. The productivity of the compressor unit is thus increased.
  • the compressor unit has a holder on which the at least one compressor is arranged. If the compressor unit has the first and second compressors, the holder can be arranged, for example, between the two compressors. The holder then spaced the two compressors.
  • the compressor unit has at least one receptacle for a loading element for generating a contact force on the contact surface.
  • the compressor unit can be held in the drafting system.
  • the loading element can apply the contact force to press the compressor unit against the drafting roller.
  • the receptacle can also be arranged on the at least one compressor. Additionally or alternatively, the receptacle can also be arranged on the holder.
  • the receptacle is designed such that the compressor unit is displaceable in the axial direction of the drafting roller in relation to the loading element.
  • the traversing device only oscillates the compressor unit and not also the loading element. The traversing device then only has to traverse the compressor unit and not the compressor unit together with the loading element.
  • the receptacle can also be designed such that the compressor can be displaced in the axial direction of the drafting roller in relation to the loading element.
  • the holder can also be displaceable in the axial direction of the drafting roller in relation to the loading element.
  • the traversing device can also only move the compressor, so that the traversing device only has to apply a traversing force for traversing the at least one compressor.
  • the at least one compressor can be displaced relative to the holder in the axial direction of the drafting roller.
  • the holder can have, for example, a shaft which extends in the axial direction of the drafting roller, the at least one compressor having a bearing in which the shaft is mounted.
  • the compressor can thus be oscillated in the axial direction and thus in the direction of a traversing movement on the shaft.
  • the shaft can also be a journal.
  • the holder can be designed in such a way that it can be firmly connected to the loading element.
  • the holder has a first connecting element with which the loading element can be connected to a second connecting element.
  • the connection of the first connecting element and the second connecting element forms a fixed connection, so that the holder is immovable relative to the loading element at least in the axial direction. As a result, the holder is not oscillated by the traversing device.
  • the coupling devices of the first and the second compressor are arranged in the mutually facing regions of the corresponding compressors.
  • the traversing device can easily traverse both compressors at the same time.
  • the traversing device can reciprocate the two compressors equally. If the two compressors are arranged side by side in the axial direction, the compressors are designed in this way and / or arranged that at least the coupling devices are arranged mirrored to one another and / or formed.
  • the two compressors are arranged at least with respect to one another with respect to the coupling devices and / or are embodied.
  • the coupling device has a coupling recess into which a traversing element of the traversing device can be arranged.
  • the traversing element can also have a coupling element, which can be, for example, a tongue, a pin or a finger.
  • the traversing element can, for example, transmit the traversing movement of a drive of the traversing device to the compressor unit. If the traversing element and / or the coupling element is arranged in the coupling recess, it can form a positive connection, so that the traversing element and / or the coupling element in the coupling recess can at least move the compressor and / or the compressor unit in the axial direction of the drafting roller.
  • the coupling device has an insertion area.
  • the insertion area can additionally or alternatively be funnel-shaped, so that the traversing element can be easily inserted into the insertion area to form the coupling.
  • the insertion area can be arranged in the coupling recess, so that the traversing element and / or the coupling element, for example in the form of a tongue, a pin or a finger, can be easily inserted into the coupling recess.
  • the insertion area has a greatest width in the axial direction of the drafting roller, which corresponds to at least one traversing stroke of the traversing device.
  • the greatest width can also double of the traverse stroke. Since the traversing device can be displaced in the axial direction of the drafting roller, even if the traversing device is not coupled to the compressor, the traversing device can be offset in the axial direction with respect to the coupling device. This can make it difficult to recouple the compressor to the traversing device.
  • the insertion area has a maximum width as described above, the insertion area always overlaps in the axial direction with the traversing device, in particular with the traversing element and / or the coupling element. As a result, the traversing device can always be coupled to the at least one compressor.
  • first and the second compressor are arranged and / or designed in such a way that they can be coupled to one another by means of the traversing element and / or coupling element.
  • the two compressors can, for example, be arranged such that the traversing element can be arranged between the two compressors and with both coupling devices of the two compressors.
  • the traversing element can have, for example, two coupling elements, wherein in each case one coupling element can be coupled to a respective coupling device, in particular a coupling recess.
  • the compressor unit has two webs spaced apart from one another in the axial direction of the drafting roller, the webs being able to grip around a pressure roller arranged parallel to the drafting roller.
  • the two webs can also be arranged on at least one compressor. If the compressor unit has the two compressors, both compressors can also have two webs. The webs can grip around the pressure roller and thereby specify a position in the axial direction of the drafting roller of the compressor unit, in particular of the compressor.
  • the compressor unit has at least one pair of compressors comprising a front and a rear compressor, the front and rear compressors being spaced apart from one another in the circumferential direction of the drafting roller.
  • the sliver is first passed through the front compressor and then through the rear compressor. The sliver is thus compressed twice, so that a higher quality yarn, for example with a ring spinning station, can be produced.
  • the compressor unit has two pairs of compressors which are spaced apart from one another in the axial direction of the drafting roller.
  • the compressor unit thus has four compressors. As a result, two slivers, each with two compressors, a front and a rear, can be compressed.
  • Figure 1 shows a schematic side view of a compressor unit 1 on a drafting unit 2.
  • the drafting unit 2 is shown here only in part.
  • the drafting device 2 has a plurality of drafting device rollers, only one drafting device roller 5 being shown here for the sake of simplicity.
  • a sliver 7 is warped, whereby it is homogenized. A yarn produced from the sliver 7 is therefore of a higher quality.
  • the sliver 7 also has a sliver direction FR.
  • the sliver 7 also runs between the drafting roller 5 and a first and second pressure roller 8, 9. With the help of the two pressure rollers 8, 9, the sliver 7 is pressed against the drafting roller 5.
  • the two pressure rollers 8, 9 are not themselves driven. Instead, the drafting roller 5 is driven, whereby by pressing the two pressure rollers 8, 9, they are also driven by the drafting roller 5.
  • the drafting roller 5 and the pressure rollers 8, 9, when they are pressed against the drafting roller 5, rotate in such a way that the sliver 7 is drawn through the drafting unit 2 in the sliver direction FR.
  • the drafting roller 5 also has a circumferential direction U.
  • the circumferential direction U is oriented parallel to the sliver direction FR here.
  • the compressor unit 1 has at least one compressor 3 for compressing the sliver 7.
  • the compressor unit 1 has only one compressor 3.
  • the completely warped, but still relatively loose, fiber sliver 7 is summarized in a compact manner. As a result, it can be better processed and spun into a yarn of high quality, for example by means of a ring spinning station, not shown here.
  • the compressor 3 has a base body 30, on which a support surface 4 is arranged, by means of which the compressor 3 is placed on the drafting roller 5.
  • the bearing surface 4 is advantageously curved, wherein the curvature essentially corresponds to that of the outer surface of the drafting roller 5.
  • the compactor 3 also has at least one compacting surface 6 arranged on the base body 30.
  • the compression surface 6 is advantageously arranged and / or oriented in the base body 30 of the compressor 3 such that it and the fiber sliver direction FR are at an angle to one another. The sliver 7 thereby hits the compression surface 6 at an angle and is thereby compacted.
  • the at least one compressor 3 is also arranged on a pressure arm 10 by means of a loading element 11.
  • the pressure arm 10 connects at least the two pressure rollers 8, 9 and the compressor unit 1 to the drafting device 2. In particular, the pressure arm 10 presses the two pressure rollers 8, 9 onto the drafting device roller 5.
  • the compressor 3 is connected to the pressure arm 10 by means of the loading element 11.
  • the pressure arm 10, and consequently also the two pressure rollers 8, 9, the loading element 11 and the compressor 3 arranged thereon, can be pivoted upwards.
  • the pressure arm 10 is thereby pivoted away from the drafting roller 5 and the drafting device 2 is thereby opened.
  • opening for example, the drafting system 2 can be cleaned or the fiber sliver 7 can be pulled manually through the drafting system 2 if it is torn.
  • the pressure arm 10 can of course be closed again if the pressure arm 10 and the pressure rollers 8, 9 arranged thereon are the loading element 11 and the compressor 3 can be pivoted downwards, that is in the direction of the drafting roller 5. The compressor 3 and the pressure rollers 8, 9 thereby sit on the drafting roller 5.
  • Figure 2 shows a schematic view from the front of the compressor 3, the drafting roller 5 and a traversing element 13 coupled to a coupling device 12 of the compressor 3.
  • the drafting roller 5 also has an axial direction X.
  • the compressor 3 has two compression surfaces 6a, 6b.
  • the two compression surfaces 6a, 6b are spaced apart from one another in the axial direction X, so that the sliver 7, not shown here, can additionally be guided by the two compression surfaces 6a, 6b at least in the axial direction X of the drafting roller.
  • the compressor 3 also has a compression channel 15 through which the sliver 7 can run.
  • the sliver 7 is also compressed and guided by means of the compression channel 15.
  • the two compression surfaces 6a, 6b delimit the compression channel 15 in the axial direction X. They can also be curved so that they form a funnel-shaped compression channel 15.
  • the compression channel 15 or the compression surfaces 6a, 6b, the support surface 4 and the coupling device 12 are arranged on the base body 30 of the compressor 3.
  • the compressor 3 can be oscillated with respect to the drafting roller 5 by means of a traversing movement CB.
  • the axial direction X of the drafting roller 5 and the traversing movement CB are oriented parallel to one another.
  • the traversing movement CB of the compressor 3 also causes the sliver 7 guided by the compressor 3 to be changed. As a result, it is shifted back and forth relative to the drafting roller 5, so that the sliver 7 can not be cut into the drafting roller 5.
  • the compressor 3 In order to move the compressor 3, it can be coupled to a traversing device, not shown here, which generates the traversing movement CB.
  • the compressor 3 has a coupling device 12 which is coupled to the traversing device.
  • the traversing device has a traversing element 13 which can be coupled to the coupling device 12.
  • the coupling device 12 comprises a coupling recess 16, in which the traversing element 13 can engage with a coupling element 17, so that the compressor 3 and thus the compressor unit 1 can be coupled to the traversing device.
  • the coupling element 17 is designed as a tongue, pin, finger or extension.
  • the pressure arm 10 and thus at least the compressor 3 can be swung open.
  • the compressor 3 is thereby pivoted away from the drafting roller 5.
  • the traversing device is not also pivoted, so that the compressor 3 is also pivoted away from the traversing device and from the traversing element 13 shown here.
  • the drafting unit 2 closes, ie when the pressure arm 10 is pivoted in the direction of the drafting unit roller 5 and the compressor 3 is thereby placed thereon, the compressor 3 must be coupled to the traversing device again.
  • the traversing device can thereby be detachably connected to the coupling device 12.
  • this has an insertion area 14 according to the present exemplary embodiment.
  • the coupling element 17 of the traversing element 13 can be introduced more easily into the coupling device 12 or into the coupling recess 16 will.
  • the insertion area 14 can also be designed in the shape of a funnel, so that the coupling element 17 can slide into the coupling recess 16.
  • the insertion region 14 can also have a greatest width B at its widest point.
  • the greatest width B has such a size that when the drafting unit 2 or the pressure arm 10 is closed, the coupling element 17 is in the region of the insertion region 14.
  • the greatest width B can be, for example, at least twice a traversing stroke of the traversing element 13. The traversing stroke corresponds to the distance between the two reversal points of the traversing movement CB.
  • the compressor 3 can also be mounted so as to be movable relative to the loading element 11 in the direction of the traversing movement CB and / or in the axial direction X.
  • the compressor 3 can thereby be oscillated relative to the drafting roller 5, whereas the loading element 11 can be fixed relative to the drafting roller 5.
  • the connection between the compressor 3 and the loading element 11 can be designed such that the compressor 3 can be moved relative to the loading element 11 at least in the axial direction X and / or in the direction of the oscillating movement CB.
  • the traversing device can be detachably coupled to the coupling device 12. This can be achieved by the coupling element 17 of the traversing device or of the traversing element 13 and the coupling device 12 as a coupling recess 16 of the exemplary embodiment shown here.
  • FIG. 3 shows a schematic front view of the compressor unit 1 with two compressors 3a, 3b.
  • FIG. 3 shows a schematic front view of the compressor unit 1 with two compressors 3a, 3b.
  • the present exemplary embodiment shows two drafting rollers 5a, 5b, one drafting roller 5a, 5b each being associated with a compressor 3a, 3b.
  • the two drafting rollers 5a, 5b can also be just a single, continuous drafting roller 5. Both compressors 3a, 3b then rest on the same drafting roller 5.
  • the two compressors 3a, 3b are arranged side by side in the axial direction X.
  • Each of the two compressors 3a, 3b is assigned to a spinning station, for example a ring spinning station. With the help of the compressors 3a, 3b, two slivers 7 can thus be compressed.
  • the coupling devices 12a, 12b of the respective compressors 3a, 3b are arranged in mutually facing areas on the base bodies 30a, 30b of the compressors 3a, 3b.
  • the two compressors 3a, 3b can be mirrored to one another at least with respect to the coupling devices 12, 12b. They rest with their bearing surfaces 4a, 4b on the two drafting rollers 5a, 5b.
  • the drafting rollers 5a, 5b can be part of a continuous shaft.
  • the two compressors 3a, 3b are coupled to one another via the traversing element 13.
  • the traversing element 13 has two coupling elements 17a, 17b, one coupling element 17a, 17b each being coupled to a coupling device 12a, 12b of a compressor 3a, 3b.
  • the traversing element 13 can thereby traverse the two compressors 3a, 3b simultaneously and / or simultaneously.
  • the two coupling elements 17a, 17b are spaced apart from one another in the axial direction X here.
  • the two compressors 3a, 3b can be arranged on a holder 20, shown schematically here.
  • the compressor unit 1 is also arranged with the holder 20 on the loading element 11.
  • the two compressors 3a, 3b can be movably connected to the holder 20 at least in the axial direction X and / or in the direction of the traversing movement CB.
  • the compressors 3a, 3b can be moved relative to the holder 20, in particular independently of one another, whereas the holder 20 is fixed relative to the drafting roller 5.
  • the holder 20 can also be movably connected to the loading element 11 at least in the axial direction X and / or in the direction of the traversing movement CB.
  • the holder 20 and the loading element 11 can also be firmly connected to one another.
  • the two compressors 3a, 3b can also be arranged on the loading element 11.
  • the two compressors 3a, 3b are then movably connected to the loading element 11 at least in the axial direction X and / or in the direction of the traversing movement CB.
  • Figure 4 shows a view from below of the compressor 3 and the second pressure roller 9.
  • the second pressure roller 9 is also in Figure 1 shown.
  • the second pressure roller 9 of the present exemplary embodiment is the pressure roller 9 at the rear in the sliver direction FR.
  • the compressor 3 here has the compression channel 15, which has at least one compression surface 6a, 6b on the base body 30.
  • the compression surface 6b is oriented obliquely to the sliver direction FR of the sliver 7.
  • the sliver 7 strikes at least the compression surface 6b and is compacted thereon.
  • the fiber sliver 7 can also meet the compression surface 6a.
  • the compressor 3 also has two webs 18, 19 spaced apart in the axial direction X.
  • the second pressure roller 9 can be arranged between the two webs 18, 19.
  • the two webs 18, 19 encompass the second pressure roller 9.
  • the compressor 3 or the compressor unit 1 can therefore only be oscillated to a certain extent.
  • the first web 18 or the second web 19 limit the traversing movement CB.
  • the two webs 18, 19 can furthermore have a minimum distance A from one another which is greater than a thickness D of the pressure roller 9, which is surrounded by the webs 18, 19. In this way, on the one hand, the pressure roller 9 can rotate freely between the webs 18, 19.
  • the compressor 3 is held roughly in an axial direction X by the pressure roller 9. As a result, the compressor 3 cannot move so far in the axial direction X that the coupling device 12 can no longer be coupled to the traversing device. With the help of the webs 18, 19, an axial position is thus predetermined.
  • the fact that the pressure roller 9 can rotate freely between the webs 18, 19 can be at least the size of the traverse stroke between the distance between the webs 18, 19 and the thickness D of the pressure roller 9. If, furthermore, there is a gap between the webs 18, 19 and the pressure roller 9, the coupling element 17 can be displaced in the insertion area 14 in the axial direction X, so that the compressor 3 can align itself with the traversing device, which is particularly fixed at this time .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19209689.9A 2018-11-20 2019-11-18 Compresseur pour un banc d'etirage d'une machine textile Active EP3656899B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018129210.4A DE102018129210A1 (de) 2018-11-20 2018-11-20 Verdichtereinheit für ein Streckwerk einer Textilmaschine

Publications (3)

Publication Number Publication Date
EP3656899A1 true EP3656899A1 (fr) 2020-05-27
EP3656899B1 EP3656899B1 (fr) 2024-08-14
EP3656899B8 EP3656899B8 (fr) 2024-09-25

Family

ID=68609960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19209689.9A Active EP3656899B8 (fr) 2018-11-20 2019-11-18 Compresseur pour un banc d'etirage d'une machine textile

Country Status (3)

Country Link
EP (1) EP3656899B8 (fr)
CN (1) CN111197191B (fr)
DE (1) DE102018129210A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953275A1 (fr) * 2007-02-01 2008-08-06 Maschinenfabrik Rieter AG Dispositif d'étirage avec zone de condensation de fibres
DE102007024234A1 (de) * 2007-05-21 2008-11-27 Wilhelm Stahlecker Gmbh Streckwerk zum Verziehen eines Faserverbandes
EP2199439B1 (fr) 2008-12-19 2012-06-20 Spindelfabrik Suessen GmbH Unité d'étanchéification et dispositif de changement pour un banc d'étirage
EP3124660A1 (fr) * 2015-07-31 2017-02-01 Maschinenfabrik Rieter Ag Compresseur pour un banc d'etirage d'une machine textile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015104808A1 (de) * 2015-03-27 2016-09-29 Maschinenfabrik Rieter Ag Verdichtereinheit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953275A1 (fr) * 2007-02-01 2008-08-06 Maschinenfabrik Rieter AG Dispositif d'étirage avec zone de condensation de fibres
DE102007024234A1 (de) * 2007-05-21 2008-11-27 Wilhelm Stahlecker Gmbh Streckwerk zum Verziehen eines Faserverbandes
EP2199439B1 (fr) 2008-12-19 2012-06-20 Spindelfabrik Suessen GmbH Unité d'étanchéification et dispositif de changement pour un banc d'étirage
EP3124660A1 (fr) * 2015-07-31 2017-02-01 Maschinenfabrik Rieter Ag Compresseur pour un banc d'etirage d'une machine textile

Also Published As

Publication number Publication date
EP3656899B1 (fr) 2024-08-14
DE102018129210A1 (de) 2020-05-20
CN111197191B (zh) 2023-07-14
EP3656899B8 (fr) 2024-09-25
CN111197191A (zh) 2020-05-26

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