EP0360835A1 - Procede et dispositif d'entreposage de rubans de carde dans un pot de rubans - Google Patents

Procede et dispositif d'entreposage de rubans de carde dans un pot de rubans

Info

Publication number
EP0360835A1
EP0360835A1 EP88905822A EP88905822A EP0360835A1 EP 0360835 A1 EP0360835 A1 EP 0360835A1 EP 88905822 A EP88905822 A EP 88905822A EP 88905822 A EP88905822 A EP 88905822A EP 0360835 A1 EP0360835 A1 EP 0360835A1
Authority
EP
European Patent Office
Prior art keywords
tube
rotary coupling
suction
transport
gas injector
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.)
Pending
Application number
EP88905822A
Other languages
German (de)
English (en)
Inventor
Hermann Gasser
Karl Curiger
Hans Rutz
Walter Löffler
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
Application filed by Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP0360835A1 publication Critical patent/EP0360835A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/702—Arrangements for confining or removing dust
    • 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
    • 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 method for depositing a textile sliver into a can, in which the sliver is drawn into a pull-in phase by means of a flow of compressed air or suction air and then in a
  • Depositing phase is continuously transported through the deposit tube into the jug.
  • the invention also relates to a device for carrying out the method, with a turntable, to which a deposit tube is assigned, at the discharge end of which a pair of pressure rollers is arranged, and with a compressed gas injector for drawing in the fiber sliver.
  • nonwovens removed from a card have been formed into a fiber band
  • these fiber bands are generally deposited in so-called spinning cans before further processing.
  • Such a device is known from US-PS 43 18 206 (CH-PS 639 628).
  • the turntable of the known device is shielded by a fixed hood, the space under the hood being connected to a suction line.
  • the delivery tube protrudes with the discharge end through the plane of the turntable into the spinning can, the pressure roller pair being arranged on the underside of the turntable.
  • the discharge end which is relatively close to the pair of pressure rollers, is provided with outlet openings which open into the space enclosed by the cover and the turntable.
  • the fiber sliver is drawn under vacuum through the laying tube up to the pressure rollers.
  • a compressed gas injector can also be provided.
  • the suction can essentially only be achieved during the drawing-in phase, since otherwise there is a risk that parts of the sliver are sucked out laterally from the conveyor nip of the pressure rollers.
  • the invention is therefore based on the object of improving a method and an associated device of the type mentioned at the outset so that, with improved drawing-in properties, effective dedusting of the sliver can also be carried out in the laying phase of the sliver.
  • This object is achieved in that a suction air flow is generated in the laying tube during the laying phase, which is directed against the transport direction of the sliver.
  • this suction air flow is not generated for transport purposes, but essentially exclusively for venting and removing dust particles and short fibers. In this way, the air flow used to introduce the sliver into the laydown tube cannot be impaired by short fibers or dust particles.
  • the suction air flow can also be maintained at full strength in the laying phase, since no outward air flow is generated at the conveying gap between the pressure rollers.
  • the object is achieved according to the invention by a suction connection which can be connected to a vacuum device and which, viewed in the transport direction, is at a distance from the end of delivery Storage tube is arranged.
  • a suction connection which can be connected to a vacuum device and which, viewed in the transport direction, is at a distance from the end of delivery Storage tube is arranged.
  • a first compressed gas injector is arranged directly in front of the pressure roller pair and behind the discharge end of the discharge tube and a second compressed gas injector, viewed in the transport direction, at a distance before the discharge end of the discharge tube, with a gap between the discharge end of the discharge tube and the input of the first pressure gas injector is trained.
  • the gap brings about a pressure compensation when the fiber sliver is drawn in, so that no conveying air can flow into the inlet of the first compressed gas injector from the laying tube.
  • a larger pressure difference can be built up in the first compressed gas injector, which enables the sliver to be drawn into the conveying gap between the two pressure rollers even more reliably.
  • air for the suction air flow can enter the laying pipe through the gap in the laying phase.
  • a compressed air connection line is led through the first rotary coupling, for the first compressed gas injector arranged at the discharge end of the storage tube.
  • the storage tube with the associated compressed air connection line of the he Turn the most compressed gas injector around the rotary coupling without having to turn the part of the compressed air connection line that leads from the outside to the first rotary coupling.
  • the rotary coupling has two rotating parts which can be rotated relative to one another and which enclose a compressed air space which is sealed off from the outside and to the storage tube, a connecting bore opening into the compressed air space being provided on both rotating parts for a compressed air line.
  • the rotary parts of the rotary coupling are designed as sleeves which are essentially coaxially one inside the other and are connected to the respective tube and can be rotated relative to one another by means of two radial bearings which are axially spaced apart and sealed, the compressed air space being delimited by the radial bearings and the sleeves is, and wherein the connection bore is formed in the outer sleeve as a radial bore, while the connection bore in the inner sleeve is substantially formed as an axial bore.
  • the turntable for depositing the sliver in the jug is not only rotated about an axis that passes through the center of the turntable, but is stored in a lid that is rotates on one side, which is arranged eccentrically to the center of the turntable.
  • the can can rotate around the latter axis instead. This results in cycloid-like deposit patterns when the sliver is laid down.
  • the actual compressed air connection for the first compressed gas injector can be made stationary to the transport tube, with the subsequent compressed air line with the subsequent pipe sections, such as pipe elbow and deposit pipe, being able to rotate with each other.
  • the suction connection is arranged in the region of the second rotary coupling.
  • the suction port is in this way close enough to the discharge end of the storage tube and can still be provided at the non-rotating end of the transport tube.
  • the suction air flow In the conveying direction upwards from the second rotary coupling, the suction air flow always acts in the transport direction of the sliver; only between this rotary coupling and the outlet of the deposit tube does the suction air flow towards the sliver.
  • the suction connection is formed on a part of the second rotary coupling connected to the transport tube. This is advantageous because the pipe sections protruding into the rotary coupling must always be slightly spaced apart because of the possibility of being able to be rotated relative to one another. This automatically creates a gap that only needs to be adapted to the desired suction air flow.
  • suction connection is designed as a flange attached to the second rotary coupling, to which the transport tube and a suction line are connected are.
  • a particularly uniform suction of the short fibers and dust particles is made possible by the fact that between the end of the transport pipe opening into the rotating coupling and the second rotating coupling a gap is formed which is sealed to the outside by the flange and which is connected to the suction line by flow.
  • a gap is formed which is sealed to the outside by the flange and which is connected to the suction line by flow.
  • FIG. 1 is a side view of an overview of a device according to the invention, in which some parts have broken away,
  • FIG. 2 is a plan view of a schematic diagram with a laying pattern of the sliver in a device according to FIG. 1,
  • FIG. 3 shows a detailed view III in FIG. 1,
  • Fig. 4 is a sectional view through part of the device along the line IV-IV in Fig. 3 and
  • Fig. 5 shows the detail V in Fig. 1 in a partially sectioned view.
  • FIG. 1 shows, in a partially cut and partially broken away side view, a device 1 according to the invention for depositing a textile sliver into a can 2.
  • a turntable 3 is arranged above the can 2, to which a deposit tube 4 is assigned.
  • the deposit tube 4 is designed to be rotatable and, on the one hand, is held with its upper end in a first rotary coupling 5, while the lower, discharge end 7 faces a rotatable disk 6.
  • the rotatable disk 6 is mounted within a larger rotatable disk 8, which in turn is rotatably supported in an outer edge 9.
  • both the small rotatable disk 6 and the large rotatable disk 8 are each arranged to be rotatable about their own center.
  • the sliver leaving the discharge end 7 is deposited in an exploded, helical pattern.
  • the deposit tube 4 has at its discharge end 7 a pair of pressure rollers 10, from where the sliver passes through a small rotating disc 6 into the interior of the can 2 through a mouthpiece tube 11 adapted to the contour of the pair of pressure rollers 10.
  • laying tube 4 is shown in two positions (in a solid line and in a dashed line).
  • first rotary coupling 5 there is an essentially S-shaped pipe bend 13 which can be rotated relative to the support tube 4.
  • the upper end of the elbow 13 is connected via a second rotary coupling 14 to a transport tube 15.
  • the transport tube 15 can for example lead from a card, not shown here.
  • the pipe elbows 13 rotate about the axis 16 of the can and on the other hand the deposit tube 4 about the axis 17 of the small rotatable disc 6 and also about the axis 16.
  • the axes of the two Swivel couplings 5 and 14 coincide with axes 17 and 16, respectively.
  • a first compressed gas injector 18 is connected between the discharge end 7 and the pair of pressure rollers 10, which introduces the fiber sliver into the conveying nip between the two pressure rollers 10.
  • the first pressurized gas injector 18 is designed to converge in the interior and ends in a longitudinal gap 37, which is arranged transversely to the delivery gap between the two pressure rollers 10.
  • the compressed air is fed inside through an annular gap nozzle (see also compressed gas injector 20).
  • a gap 19 is formed between the first compressed gas injector 18 and the discharge end 7 of the placement tube 4, through which gap air can enter or exit.
  • a second compressed gas injector 20 is arranged at a distance from the discharge end 7 of the storage tube 4. More specifically, the second compressed gas injector 20, seen in the transport direction, is arranged in front of the second rotary coupling 14 in the transport tube 15.
  • the compressed gas injector 20 is designed as an annular nozzle and, together with the first compressed gas injector 18, is connected to a common compressed air source 21. From the compressed air source 21 leads a first connection line 22 to the first pressure gas injector 18 and a second connection line 23 to the second pressure gas injector 20. While the second connection line 23 leads directly to the second pressure gas injector, which is arranged in a stationary manner with the transport pipe 15, the first leads Connection line via the second rotary coupling 14 and via the first rotary coupling 5 to the first compressed gas injector 18.
  • the two rotary couplings 5 and 14 are constructed essentially identically and each have two rotating parts 24 and 25 which can be rotated relative to one another.
  • the two rotating parts 24 and 25 enclose a compressed air space 26, with beieen Turned parts 24 and 25 each have a connection hole 27 or opening into the compressed air space 26. 28 before you see.
  • the two rotating parts 24 and 25 are designed as sleeves which are essentially coaxially one inside the other and connected to the respective tube.
  • the outer sleeve 24 can be rotated relative to the inner sleeve 25 by means of two axially spaced apart deep groove ball bearings 29 and 30.
  • the grooved ball bearings 29 and 30 are, as can be seen in particular from FIG. 5, sealed to the compressed air space 26 with seals 31.
  • the compressed air space 26 is therefore limited by the outer sleeve 24, the inner sleeve 25 and the deep groove ball bearings 29 and 30 or their seals 31.
  • connection bore 27 in the outer sleeve 24 is designed as a radial bore
  • connection bore 28 in the inner sleeve is essentially designed as an axial bore, wherein it can be seen in the drawing that the connection of the first connection line 22 to the axial bore 28 also takes place radially .
  • a suction connection 32 is provided in the region of the second rotary coupling 14. More specifically, the suction connection is formed directly on the outer sleeve 24 of the second rotary coupling 14, which is firmly connected to the transport tube 15.
  • FIGS. 3 and 4 The more precise design of the suction connection 32 can be seen in FIGS. 3 and 4. It can be seen there that both the transport tube 15 and a suction pipe 34 are connected to a flange 33 on the upper side of the second rotary coupling 14. Between the opening in the second rotary coupling 14 end of the transport tube 15 and the rotary coupling itself, a gap 35 is formed which is sealed to the outside by the flange 33 and which is in flow communication with the suction tube 34. For this purpose, the gap 35 also extends below the suction pipe 34. The gap 35 is with the interior of the pipe bend mers 13 flow-connected and sealed against the compressed air chamber 26 by the inner sleeve 25 of the third clutch 14.
  • the suction pipe 34 is arranged behind the transport pipe 15 in FIG. 1 and lies slightly above the transport pipe.
  • the two compressed gas injectors 18 and 20 are supplied with compressed air by the compressed air source 21 and via the connecting lines 22 and 23.
  • the two disks 6 and 8 each rotate un their axes 17 and 16, which is why the storage tube 4 and the elbow 13 rotate un these axes.
  • the first compressed gas injector 18 can be supplied with compressed air in spite of this rotation, the first connecting line 22 leads through the rotary coupling 14 and 5, respectively.
  • the respective connecting bores 27 and 28 can rotate relative to one another without the connecting line 22 being twisted.
  • a compressed air flow is generated in the transport tube 15, in the subsequent pipe elbow 13 and in the storage tube 4.
  • a suction air flow directed in the transport direction T forms in front of the second compressed gas injector 20.
  • This suction air flow draws in the fiber sliver up to the second compressed gas injector 20, after which the fiber sliver insertion is gripped by the compressed air flow and is conveyed through the second swivel coupling 14, the elbow 13, the first rotating coupling 5 and the laying tube 4.
  • the compressed air in the storage tube 4 can escape through the gap 19, so that no overpressure can build up at the input of the first compressed gas injector 18, which would reduce the effect of the first compressed gas injector.
  • the first compressed gas injector 18 draws in the incoming sliver end and conveys it into the conveying gap between the two pressure rollers 10 rotating in the direction of the arrow (see dashed line). From there, the sliver is further conveyed through the round tube 11 through the smaller rotatable disc 6 into the can 2.
  • the pull-in phase has now ended.
  • the two compressed gas injectors 18 and 20 are switched off, while the suction pipe 34 remains connected to a vacuum device 36.
  • the suction flow is weaker than the pressure flow, so that the latter outweighs the former in the pull-in phase.
  • a suction flow is formed in the suction pipe 34, which continues via the suction connection 32 both into the transport pipe 15 and into the pipe elbow 13 and the storage pipe 4.
  • a suction flow is formed in the suction pipe 34, which continues via the suction connection 32 both into the transport pipe 15 and into the pipe elbow 13 and the storage pipe 4.
  • the direction of the suction flow is shown by the arrows S. It can be seen that seen in the transport direction T, the suction direction S is aligned with the transport direction T in front of the suction connection 32, while, seen in the transport direction T, behind the suction connection 32 the suction direction S of the transport direction T is opposite. This means that the sliver, which is conveyed by the pressure rollers 10 in the now initiated laying phase, moves in the region of the pipe bend 13 and the laying tube 4 along an opposite air flow. This opposite air flow begins in the area of the discharge end 7 at the Gap 19 between the discharge end 7 and the first compressed gas injector 18 and ends at the suction connection 32.
  • the vacuum device 36 can have a separator in the form of a filter.
  • the slivers are deposited in the can 2 in a pattern, as can be seen in FIG. 2.
  • the mouthpiece tube 11 is preferably made of a plastic and is arranged so close to the contour of the pair of pressure rollers 10 that the best possible seal between the pair of pressure rollers 10 and the mouthpiece tube 11 results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Coiling Of Filamentary Materials In General (AREA)

Abstract

On connaît un procédé et un dispositif qui consistent à insérer le ruban de carde pendant une phase de tirage dans un tuyau rotatif d'entreposage (4) au moyen d'un courant d'air comprimé ou d'aspiration, puis à transporter en continu les rubans de carde à travers le tuyau d'entreposage jusqu'au pot de rubans (2) pendant une phase d'entreposage. L'inconvénient de ce procédé réside dans le fait que des particules de poussière et des brins courts peuvent également s'introduire dans le pot de rubans ou s'échapper dans l'environnement. Selon le procédé, on empêche la sortie de brins courts et de particules de poussière en générant un courant d'air d'aspiration dans le tuyau d'entreposage pendant la phase d'entreposage, ledit courant s'écoulant en sens inverse au sens de transport du ruban de carde. Ce procédé et ce dispositif sont utiles dans des installations de l'industrie textile où des rubans de carde sont entreposés temporairement dans des pots de rubans.
EP88905822A 1987-07-09 1988-07-08 Procede et dispositif d'entreposage de rubans de carde dans un pot de rubans Pending EP0360835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3722772 1987-07-09
DE19873722772 DE3722772A1 (de) 1987-07-09 1987-07-09 Verfahren und vorrichtung zum ablegen eines textilen faserbandes in eine kanne

Publications (1)

Publication Number Publication Date
EP0360835A1 true EP0360835A1 (fr) 1990-04-04

Family

ID=6331269

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88905822A Pending EP0360835A1 (fr) 1987-07-09 1988-07-08 Procede et dispositif d'entreposage de rubans de carde dans un pot de rubans
EP88110984A Expired - Lifetime EP0298519B1 (fr) 1987-07-09 1988-07-08 Procédé et dispositif d'emmagasinage d'un ruban de fibres textiles dans un pot

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88110984A Expired - Lifetime EP0298519B1 (fr) 1987-07-09 1988-07-08 Procédé et dispositif d'emmagasinage d'un ruban de fibres textiles dans un pot

Country Status (4)

Country Link
EP (2) EP0360835A1 (fr)
JP (1) JPH02504020A (fr)
DE (2) DE3722772A1 (fr)
WO (1) WO1989000542A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8903356U1 (fr) * 1989-03-17 1990-07-19 Hollingsworth Gmbh, 7265 Neubulach, De
IT1230902B (it) * 1989-06-23 1991-11-08 Savio Spa Perfezionamento al dispositivo per la raccolta di nastri di fibre in vasi.
DE10063031A1 (de) * 2000-12-18 2002-06-20 Rieter Ingolstadt Spinnerei Textilmaschine
DE102006044682A1 (de) * 2006-09-21 2008-03-27 Rieter Ingolstadt Spinnereimaschinenbau Ag Vorrichtung für eine Spinnereivorbereitungsmaschine sowie Spinnereivorbereitungsmaschine
ES2664995T3 (es) * 2014-06-18 2018-04-24 Superba (Société Par Actions Simplifiée) Sistema que comprende una estructura transportadora y un dispositivo de esparcimiento de hilo sobre la estructura transportadora

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971683A (en) * 1955-03-01 1961-02-14 Du Pont Strand delivery
US3032832A (en) * 1958-07-25 1962-05-08 Whitin Machine Works Sliver coiling mechanism
US3377665A (en) * 1965-08-13 1968-04-16 Ideal Ind Textile machine cleaning system and method
US4361006A (en) * 1979-07-06 1982-11-30 Luwa Ag Spinning frame
CH639628A5 (de) * 1979-10-01 1983-11-30 Luwa Ag Kannenpresse.
DE3517058A1 (de) * 1985-05-11 1986-11-13 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung an einer karde mit einer faserbandeinlegevorrichtung
CH671213A5 (fr) * 1986-09-22 1989-08-15 Hollingsworth Gmbh

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8900542A1 *

Also Published As

Publication number Publication date
EP0298519B1 (fr) 1991-08-07
DE3722772A1 (de) 1989-01-26
JPH02504020A (ja) 1990-11-22
EP0298519A1 (fr) 1989-01-11
WO1989000542A1 (fr) 1989-01-26
DE3722772C2 (fr) 1989-08-17
DE3864096D1 (de) 1991-09-12

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