EP0261330B2 - Vorrichtung zum Komprimieren und selbsttätigen Einführen eines textilen Faserbands in einen Förderspalt - Google Patents

Vorrichtung zum Komprimieren und selbsttätigen Einführen eines textilen Faserbands in einen Förderspalt Download PDF

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Publication number
EP0261330B2
EP0261330B2 EP87109940A EP87109940A EP0261330B2 EP 0261330 B2 EP0261330 B2 EP 0261330B2 EP 87109940 A EP87109940 A EP 87109940A EP 87109940 A EP87109940 A EP 87109940A EP 0261330 B2 EP0261330 B2 EP 0261330B2
Authority
EP
European Patent Office
Prior art keywords
channel
mouthpiece
gap
mouth
transport
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.)
Expired - Lifetime
Application number
EP87109940A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0261330A1 (de
EP0261330B1 (de
Inventor
Hermann Gasser
Karl Curiger
Hans Rutz
Hans Rudolf Brüderlin
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.)
Hollingsworth GmbH
Original Assignee
Hollingsworth GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP0261330A1 publication Critical patent/EP0261330A1/de
Application granted granted Critical
Publication of EP0261330B1 publication Critical patent/EP0261330B1/de
Publication of EP0261330B2 publication Critical patent/EP0261330B2/de
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a device for compressing and automatically inserting a textile fiber strip into a conveying nip, in particular a roller nip, with a transport channel, a flow generator for forming a gas flow in the transport channel, and an insertion mouthpiece adjoining the transport channel, one with the transport channel aligned, tapering in the direction of flow mouthpiece channel and in the mouth area has at least one lateral slot-like opening for the outflow of the gas stream from the mouthpiece channel.
  • a device of this type in which a series of slots is cut in the mouthpiece, which lie in planes perpendicular to the direction of transport. These slits thus run transversely to the longitudinal direction of the mouthpiece channel and form a kind of slit grille in it over a little more than half of its circumference, through which the transport gas can escape laterally.
  • the mouth of the mouthpiece channel is formed in the known device as a flat, circular opening without adaptation to the contour of the rollers delimiting the conveyor gap. Fibers remain on the edges of the slits running transversely to the transport direction.
  • the narrow circular mouth in conjunction with the transverse slots, is an insurmountable obstacle to the unavoidable thickening of the sliver. This can, with unfavorable properties of the sliver, lead to blockages of the mouthpiece in the known device, which prevent reliable, automatic insertion of the sliver into the conveying gap and even compression of the sliver.
  • a device is also known from US Pat. No. 4,318,206 (FIGS. 1 and 2) in which the mouthpiece channel does not taper in the direction of transport, but only continues the transport channel. In the mouthpiece area, this channel has rows of bores around its circumference through which the transport gas can escape.
  • the frontal contour of the mouthpiece is adapted to a small extent to the contour of the rollers forming the conveying gap. Since the mouthpiece channel is just as wide as the transport channel here, so that the fiber sliver is not compressed in any way, reliable introduction of the large-diameter fiber sliver into the nip cannot be carried out without problems. This is all the more so because the sliver is swollen by the transport gas flowing out in all directions and gets stuck on its periphery at the edges of the holes.
  • the invention is based on the object of designing a device of the type described at the outset in such a way that trouble-free automatic insertion of a textile fiber band into a conveyor nip is possible with simultaneous compression of the fiber band.
  • the opening is formed as a longitudinal gap extending from the mouth of the mouthpiece channel in its longitudinal direction in a plane substantially perpendicular to the plane of the conveying gap, and in that the mouth-side contour of the insertion mouthpiece on both sides of the longitudinal gap is the contour of the conveying gap forming components, especially rollers, is aligned.
  • the design of the outflow path for the transport gas as a longitudinal gap running in the transport direction has the advantage that no resistances running transversely to the transport direction inhibit the movement of the textile fibers. Unavoidable thickening in the sliver can expand radially into the longitudinal gap without clogging the mouthpiece channel. Nevertheless, the sliver is reliably compressed because at the mouth the sliver in the plane of the conveyor gap through the side walls of the conveyor gap or the mouthpiece channel and in the plane perpendicular to it through the contour engaging in the mouthpiece contour of the components forming the conveyor gap, in particular the Press rolls, is limited.
  • the device according to the invention therefore on the one hand allows the sliver a certain freedom for radial expansion in order to avoid blockages; on the other hand, it ensures reliable compression of the belt directly at the entry into the conveyor gap. If fibers inadvertently emerge to the side through the longitudinal gap, they are immediately grasped by the surfaces of the press rolls running in the conveying direction and reinserted into the fiber sliver.
  • the effects described are particularly important at the beginning of the sliver, where it often consists of individual pieces. These accumulate in the area of the mouth, but can expand into the longitudinal slot and are caught by the rollers as soon as enough fiber material has accumulated. This enables trouble-free threading of the beginning of the sliver.
  • the invention is primarily intended for this application.
  • the conveyor gap is formed by a pair of rollers, a longitudinal gap is expediently provided on both sides of the level of the conveyor gap.
  • the belt can expand transversely to the conveying gap in both directions and is nevertheless compressed at the mouth against these two directions of expansion.
  • the conveying gap is formed by a roller and a stationary counter body
  • the longitudinal gap is expediently only provided on the roll side in the insertion mouthpiece.
  • the one advantageously ends in a circular shape Cross-section mouthpiece channel at a small distance from the mouth and is connected to it alone by the longitudinal gap forming the mouth, the width of the longitudinal gap being less than the diameter of the last section of the mouthpiece channel.
  • the longitudinal gap defines the width of the sliver parallel to the plane of the conveyor gap, the longitudinal gap in this plane compressing the sliver as it emerges from the mouthpiece channel, while the compression in the plane perpendicular thereto is then taken over by the components forming the conveyor gap.
  • the longitudinal gap viewed in the direction of transport, has a radially freely opening initial section. Since the contour of the mouthpiece in the region of the longitudinal gap is adapted to the contour of the parts forming the conveying gap, a radially freely opening initial section of the longitudinal gap ensures an unimpeded outflow of the transport gas.
  • the width of the longitudinal gap can be in millimeters in the order of the gram weight of the sliver per meter, so that with a sliver of 5 g / m the width of the longitudinal gap is approximately 3-5 mm, preferably 4 mm.
  • the transport channel tapers conically in the direction of the mouthpiece channel.
  • the flow generator is a suction fan which draws air out of a closed space surrounding the insertion mouthpiece, so that the air is sucked in through the transport channel.
  • an air injector can also be provided at a location in the transport channel that is not specified.
  • the gas injector preferably has an annular channel which tapers conically in the direction of flow and surrounds the transport channel and which opens into the mouthpiece channel. This creates a concentrated gas flow that reliably drives the fiber sliver through the mouth of the insertion mouthpiece into the conveying gap.
  • a particularly high degree of reliability of the device is achieved if a swirl device is assigned to the gas injector. This automatically tapering the beginning of the tape.
  • the swirl device preferably consists of swirl grooves in the ring channel.
  • the device according to the invention is particularly suitable for attachment to the end of an outlet elbow of a turntable opening into a can. This results in a clean and space-saving storage of a sliver in the jug, the sliver being treated particularly gently.
  • 1-3 shows a device which is used to insert a sliver into a conveyor gap 1 and at the same time to compress this sliver.
  • the conveying nip is formed in this embodiment by a pair of press rolls 2, 3.
  • the level of the conveyor gap is indicated by E - E.
  • the press rolls 2 rotate in opposite directions in the directions indicated by arrows.
  • the device contains a transport channel 4, which tapers conically in the transport direction T and is connected at its inlet end 5 to a conventional transport channel in which a textile sliver is conveyed, for example by means of transport air.
  • the device also has an insertion mouthpiece 6, through which a mouthpiece channel 7 extends, which extends coaxially to the transport channel 4.
  • the mouthpiece channel 7 tapers stepwise in the direction of transport T, the steps being chamfered or rounded to avoid flow resistance.
  • the transport channel 4, however, is tapered in the transport direction T.
  • the insertion mouthpiece 6 consists essentially of a cylindrical body 8, the end face facing the rollers 2, 3 above and below the plane E - E of the conveying gap 1 is provided with such grooves 9, 10 that the frontal contour of the insertion mouthpiece 6 adjoins the circular arc-shaped contour of the rollers 2, 3 on both sides of the plane of the conveying gap 1, as can be seen clearly in Fig. 1. Between the grooves 9, 10 there remains a web 11 with an end face vertical to the direction of transport T (FIG. 3).
  • a longitudinal gap 12 is cut into the front end of the body 8, which extends in the longitudinal direction of the mouthpiece channel 7 and extends in a plane perpendicular to the plane E-E of the conveying gap 1.
  • the longitudinal gap 12 extends on both sides of the conveying gap plane E-E. Its two sections are identified by 12a and 12b.
  • the longitudinal gap 12 cuts the grooves 9, 10 on the outside and the mouthpiece channel 7 on the inside. It extends counter to the transport direction T so far that its initial section 12c is exposed radially outwards, that is to say not from the contour of a roller or another that delimits the conveyor gap Partly, is covered. This is clearly evident from Fig. 1.
  • the mouthpiece channel 7 has a circularly closed cross-section up to its transition point 13 into the longitudinal gap 12 and is then opened perpendicular to the conveyor gap plane E-E due to the narrower longitudinal gap 12 compared to its diameter dimensions transverse to the transport direction T and in the plane of the conveyor gap 1.
  • the mouthpiece channel 7 ends, as can be seen clearly from FIG. 1, at 14 at a small distance from the end face 11 of the body 8, so that the actual mouth 15 of the insertion mouthpiece 6 is defined by the walls of the longitudinal gap 12.
  • the width of the longitudinal gap 12 depends on the weight of the sliver. In millimeters it should be about the same order of magnitude as the weight of the sliver in grams per meter. With a sliver of 5 g / m, for which the device according to FIGS. 1-3 is intended, the width of the longitudinal gap is 124 mm.
  • a gas injector is attached to the end of the insertion nozzle 6 facing away from the mouth 15 and has a cylindrical housing 17.
  • This housing there is a sleeve 19 which forms the conical section of the transport channel 4.
  • the bushing 19 forms an annular gap section 20a with the housing 17 and a conically tapering annular gap section 20b with the body 8 of the insertion mouthpiece 6, which is in flow connection with the section 20a and is sealed off from the outside by a seal 21.
  • the annular gap section 20a starts from an annular space 21 in the housing 17, which is connected via a connection bore 22 to a compressed air source (not shown).
  • the annular gap section 20b opens into the mouthpiece channel 7 at 23.
  • the gas injector 16 is assigned a swirl device 24 which, in the exemplary embodiment shown, consists of swirl grooves 24 'in the annular gap section 20b, as can be seen from the partially cut-away representation of FIG. 2. These swirl grooves can be formed in part 19 or in part 8.
  • FIGS. 1-3 works as follows:
  • a sliver is transported in the direction T by conventional means, for example by means of conveying air.
  • the sliver is detected by a gas stream emerging from the annular gap section 20b at high speed and with twist, twisted and driven through the mouthpiece channel 7 and the mouth 15 into the conveying gap 1 between the press rolls 2, 3.
  • This way of working is particularly important at the beginning of a sliver. This beginning is “sharpened” by the twisting, so that the pointed starting piece is conveyed into the conveying gap between the rollers automatically and without interference in the further course.
  • the gas flowing in the mouthpiece channel 7 can escape laterally through the longitudinal gap sections 12a, b, the radially exposed section 12c ensuring unobstructed outflow.
  • the sliver is first compressed radially in the conical section of the transport channel and then by the step-like tapering of the mouthpiece channel. From the point 13 onwards, however, it can extend perpendicular to the plane E-e of the conveyor gap into the longitudinal gap sections 12a, b, so that thickenings do not lead to the formation of a jam and to tearing of the fiber sliver.
  • the sliver is compressed by the walls of the longitudinal gap 12 in the plane of the conveyor gap 1, but can still extend perpendicularly to the gap.
  • the fiber sliver is then gripped by the press rollers which cling to the insertion mouthpiece 6 on both sides of the conveying nip plane and is now compressed in the direction perpendicular to the plane of the conveying nip.
  • the fiber sliver is first compressed radially from all sides, then only essentially in the plane of the conveyor gap and finally perpendicular to this plane. Since there is nowhere to fear jamming or tearing off, the sliver is reliably and trouble-free fed to the roller pair 2, 3 under compression.
  • the device according to FIG. 4 is mounted on a stationary support wall 25.
  • the gas injector 16 is attached with a flange part 16a on the end face to the body 8 of the insertion mouthpiece.
  • the gas injector is provided with a sleeve 19 'which is formed in one piece with it and which, between itself and the mouthpiece body 8, leaves an annular space 21' for the compressed gas, which in this case is supported by the supporting wall 25 and the body 8 is fed through the setting line 26 and a radial line section 27.
  • the annular gap section 20'b extends directly from the annular space 21 '.
  • the device according to FIG. 3 functions exactly like that according to FIGS. 1-3.
  • the walls of the insertion mouthpiece can be designed to be movable at their outlet-side area, so that after the beginning of the textile band material has been introduced into the conveyor gap, the distance between the walls can be reduced.
  • the compressed air is supplied to the gas injector 16 from a compressed air source 36 via a compressed air line 34 which is passed through the swivel joint 35. While the part of the line 34 arranged between the compressed air source 36 and the swivel joint 35 is arranged stationary with respect to the cover 32, the part of the line 34 located between the swivel joint 35 and the gas injector 16 also rotates with the outlet elbow.
  • the exhaust manifold 33 is shown in a solid line.
  • the outlet elbow In the middle of FIG. 8, in which the outlet elbow is shown in broken lines, it has already rotated 90 ° about the swivel joint 35 in relation to the position in the left half of the figure. During this rotation, the sliver is simultaneously conveyed through the outlet elbow 33 and via the gas injector 16 through the press rollers 2 and 3 and is thus deposited in the spinning can 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Advancing Webs (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP87109940A 1986-09-22 1987-07-09 Vorrichtung zum Komprimieren und selbsttätigen Einführen eines textilen Faserbands in einen Förderspalt Expired - Lifetime EP0261330B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3783/86 1986-09-22
CH3783/86A CH671213A5 (ru) 1986-09-22 1986-09-22

Publications (3)

Publication Number Publication Date
EP0261330A1 EP0261330A1 (de) 1988-03-30
EP0261330B1 EP0261330B1 (de) 1990-06-13
EP0261330B2 true EP0261330B2 (de) 1993-02-17

Family

ID=4263384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109940A Expired - Lifetime EP0261330B2 (de) 1986-09-22 1987-07-09 Vorrichtung zum Komprimieren und selbsttätigen Einführen eines textilen Faserbands in einen Förderspalt

Country Status (6)

Country Link
US (1) US4809405A (ru)
EP (1) EP0261330B2 (ru)
JP (1) JPH0637264B2 (ru)
CH (1) CH671213A5 (ru)
DE (1) DE3763185D1 (ru)
ES (1) ES2016307T5 (ru)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722772A1 (de) * 1987-07-09 1989-01-26 Hollingsworth Gmbh Verfahren und vorrichtung zum ablegen eines textilen faserbandes in eine kanne
DE3722771C1 (de) * 1987-07-09 1989-02-02 Hollingsworth Gmbh Vorrichtung zum Zusammenfuehren eines textilen Faservlieses zu einem Faserband
US5111551A (en) * 1987-10-09 1992-05-12 John D. Hollingsworth On Wheels, Inc. Compact carding apparatus with sliver thread-up and method
DE8903356U1 (de) * 1989-03-17 1990-07-19 Hollingsworth GmbH, i.K., 75387 Neubulach Vorrichtung zum Ablegen eines textilen Faserbandes
IT1231131B (it) * 1989-09-29 1991-11-18 Savio Spa Dispositivo per ottenere lo stoppino in un finitore.
DE4131599A1 (de) * 1991-09-23 1993-04-01 Rosink Gmbh & Co Kg Vorrichtung zum ablegen eines faserbandes in einer kanne
DE19537983A1 (de) * 1995-10-12 1997-04-17 Truetzschler Gmbh & Co Kg Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere einer Strecke, zum Messen der Stärke eines Faserbandes
US7103440B2 (en) * 2001-12-11 2006-09-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Use of microwaves for sensors in the spinning industry
DE10214955B9 (de) * 2002-04-04 2017-06-29 Rieter Ingolstadt Gmbh Spinnereivorbereitungsmaschine
DE102015117154A1 (de) * 2015-10-08 2017-04-13 Trützschler GmbH & Co Kommanditgesellschaft Karde mit einer Anspinnvorrichtung
CN110172762A (zh) * 2019-05-29 2019-08-27 合肥经新纺织科技有限公司 一种集聚分束纺纱装置和纺纱方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH580174A5 (ru) * 1974-05-09 1976-09-30 Luwa Ag
DK143979C (da) * 1978-09-18 1982-04-19 Nf Udviklingscenter As Fremfoeringsdyse til pneumatisk fremdrivning af et multifilamenttov
FR2466527A1 (fr) * 1979-09-28 1981-04-10 Alsacienne Constr Meca Dispositif automatique d'introduction d'un voile de fibres textiles dans un coiler
CH639628A5 (de) 1979-10-01 1983-11-30 Luwa Ag Kannenpresse.
JPS5831123A (ja) * 1981-08-15 1983-02-23 Toyoda Autom Loom Works Ltd 繊維束のドラフト方法および装置
DE3271172D1 (en) * 1981-10-29 1986-06-19 Rieter Ag Maschf Apparatus for a continuous compression or detection of the mass of a textile fibre sliver
DD212754B1 (de) * 1982-12-22 1989-01-11 Textima Veb K Trichter fuer spinnereivorbereitungsmaschinen, insbesondere deckelkarde, strecken, kaemmaschinen und flyer
DE3436526A1 (de) * 1984-10-05 1986-04-10 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Bandtrichter fuer die ablieferung einer spinnereivorbereitungsmaschine

Also Published As

Publication number Publication date
EP0261330A1 (de) 1988-03-30
CH671213A5 (ru) 1989-08-15
JPH0192179A (ja) 1989-04-11
ES2016307B3 (es) 1990-11-01
DE3763185D1 (de) 1990-07-19
ES2016307T5 (es) 1995-08-01
EP0261330B1 (de) 1990-06-13
US4809405A (en) 1989-03-07
JPH0637264B2 (ja) 1994-05-18

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