EP0574659A1 - Procédé et dispositif pour séparer un ruban de fibres délivré dans une boîte à un banc d'étirage - Google Patents

Procédé et dispositif pour séparer un ruban de fibres délivré dans une boîte à un banc d'étirage Download PDF

Info

Publication number
EP0574659A1
EP0574659A1 EP93104391A EP93104391A EP0574659A1 EP 0574659 A1 EP0574659 A1 EP 0574659A1 EP 93104391 A EP93104391 A EP 93104391A EP 93104391 A EP93104391 A EP 93104391A EP 0574659 A1 EP0574659 A1 EP 0574659A1
Authority
EP
European Patent Office
Prior art keywords
sliver
guide channel
compressed air
nozzles
nozzle
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
EP93104391A
Other languages
German (de)
English (en)
Other versions
EP0574659B1 (fr
Inventor
Albert Kriegler
Alfons Zehndbauer
Michael Strobel
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 Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau 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 Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0574659A1 publication Critical patent/EP0574659A1/fr
Application granted granted Critical
Publication of EP0574659B1 publication Critical patent/EP0574659B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0428—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements for cans, boxes and other receptacles
    • B65H67/0434—Transferring material devices between full and empty cans
    • 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 and an apparatus for separating a short-staple, textile sliver that is supplied by a drafting system and stored in cans.
  • the point of separation is between the pair of calender rolls (strip take-off roll) and the area of the strip guide channel. When the can has reached the filling level, the sliver must be reliably separated.
  • DE-OS 29 47 342 describes a device for separating a textile sliver, the filled jug being under the turntable.
  • the sliver is separated by means of compressed air which is passed through a nozzle.
  • the nozzle is connected to a compressed air tank via a valve and is arranged at the outlet of the strip take-off rollers. The valve is actuated each time the can is changed and opens briefly so that the compressed air emerging from the nozzle hits the inlet opening of the belt guide channel.
  • the usual pitchers have a movable spring plate with compression spring, which is arranged on the bottom of the spring plate.
  • the spring plate lowers as the band filling increases. Due to the compression spring, the spring plate always presses the sliver onto the turntable.
  • This layer of sliver which bridges the gap between the top of the can and the turntable, is called the can mushroom.
  • This pitcher mushroom presses on the turntable. The mouth of the turntable is closed by the jug.
  • Another disadvantage is that the necessary tension only arises when the cans are full, where the filling material (fiber sliver) is pressed tightly onto the turntable. If the filling status of the cans is varied, there are difficulties with the belt separation.
  • the reliability of the tape separation is further reduced by the fact that the position of the tape at the inlet opening of the tape guide channel can not always be central, but offset, so that the air flow directed to the center of the inlet opening of the tape guide channel does not always hit the tape.
  • the object of the invention is to improve the reliability of the band separation with compressed air in the region of the band guide channel when changing cans on the line.
  • the object is achieved according to the method in that the tape delivery to the can is stopped and the mouth of the tape guide channel of the turntable is cleared of pressed fiber sliver layers by moving the can, and now a strong stream of compressed air is directed into the inlet opening of the tape guide channel, so that this compressed air flow separates the sliver within the band guide channel by the flow energy of the air.
  • the compressed air can flow through and securely shred the tape and thus separate it.
  • the compressed air stream can be guided into the inlet opening of the tape guide channel immediately after the can leaves the edge of the turntable, and thus the mouth of the tape guide channel is certainly free of sliver layers for the first time when the can is moved.
  • a slightly frayed band can still be separated by the tension that can be generated in the band guide channel. This is particularly advantageous if the tape has not been broken completely. This can happen when processing different sliver materials.
  • the compressed air flow can be divided into several compressed air flows.
  • the division takes place in such a way that either the compressed air streams run side by side or distributed in a circular manner into the interior of the tape guide channel.
  • the belt is centered by blowing the outer compressed air flows somewhat earlier than the internal compressed air flows.
  • the height of the compressed air streams can be adjusted and fixed in relation to the opening of the sliver guide channel.
  • Another feature is that the sliver is given a defined length by the separation and hangs on the edge of the can.
  • a nozzle directly at the inlet opening of the tape guide channel directs a stream of compressed air into the tape guide channel, so that the tape is securely frayed and thus breaks.
  • the air flow can be divided into several individual flows, which are put into operation at different times, so that the sliver is centered in the sliver guide channel before separation.
  • one or more nozzles are arranged at the edge of the inlet opening of the band guide channel.
  • the blowing direction is inclined approx. 45 ° to the tape and directed into the inlet opening of the tape guide channel.
  • the nozzles are arranged next to one another or in a circle with a blowing direction in the band guide channel.
  • a single nozzle like the nozzles arranged next to one another, is pivotably mounted in one plane over an angular range of 90 ° (perpendicular to parallel to the belt).
  • the circularly arranged nozzles can also be adjusted vertically to open the band guide channel at different heights.
  • the circular nozzles are attached to a nozzle plate, which is connected to an adjustable backdrop. The height of the nozzle plate relative to the opening of the band guide channel can be changed and fixed.
  • the invention has the advantage that the reliability of the pneumatic belt separation was noticeably increased regardless of the filling status of the can.
  • Compressed air (about 6-8 bar), which is passed directly at the mouth at an angle of about 45 ° into the tape guide channel 4, creates a suction that grips the tape and frayed in the upper third of the tape guide channel 4.
  • the inclination of the compressed air flow at an angle of approx. 45 ° to the belt also ensures that all compressed air enters the duct and exits at the bottom of the duct (mouth) can, which will certainly break the tape. This is an essential feature for a safe band separation, so that the method also works with different filling states of the can.
  • the compressed air can be divided into a plurality of compressed air flows, all of which are directed into the inlet opening of the band guide channel.
  • Figure 2 shows an embodiment. 4 nozzles are arranged side by side on the edge of the inlet opening of the tape guide channel 4. Their blowing direction is arranged in parallel. All 4 nozzles are operated with compressed air.
  • the two outer nozzles 6.1 and 6.2 are supplied with compressed air somewhat earlier than the two middle (inner) nozzles 6.3 and 6.4. This has the effect that the two outer nozzles 6.1 and 6.2 center the sliver 1 and thus the sliver is guided in the full blowing direction of the two middle nozzles 6.3 and 6.4, so that the compressed air of the two middle nozzles 6.3 and 6.4 which subsequently sets in the sliver 1 certainly hits and frayed so that it breaks.
  • the nozzles are thus operated with a time delay and approximately three air blasts are carried out, so that the fiber sliver is separated by the air blasts and the lower end is ejected from the band guide channel, so that it hangs down at the can edge in a defined length.
  • FIG. 3 shows an arrangement according to which the fiber band is separated by means of six convergent nozzles arranged in a circle around the band guide channel 4. In each case three nozzles 6.5, 6.6, 6.7 are arranged in a nozzle plate 11. The opposite nozzle plate is covered.
  • FIG. 3 shows a side view of one of these nozzle plates 11.
  • Figure 4 shows the arrangement of the three individual nozzles on the nozzle plate 11. It can be seen that the two nozzle plates lie symmetrically in one plane. The nozzles 6.5 to 6.10 are arranged at a height above the opening of the band guide channel 4. Nozzles 6.6 and 6.9 lie opposite each other on the imaginary axis of symmetry of the nozzle plates 11. The two outer nozzles of the nozzle plate are each offset by an angle of 56 ° with respect to these nozzles, which are arranged centrally on the nozzle plate.
  • the nozzles are incorporated in the nozzle plate so that their air jet hits the sliver at an acute angle.
  • the supply of compressed air takes place via pipe socket 14.
  • a hose feed line, which supplies the compressed air, is plugged onto this pipe socket 14.
  • the nozzle plate 11 is carried by a holder 12 which is connected to a displaceable link 13. This also applies to the nozzle plate on the opposite side.
  • the backdrop 13 is vertically displaceable, that is, a stroke relative to the edge of the opening of the tape guide channel 4 is continuously adjustable. This vertical adjustability of the nozzle plate 11 enables an optimal adjustment of the height of the nozzles relative to the opening edge of the tape guide channel.
  • the setting is important from the following point of view: since the belt is clamped between the take-off rollers, it is separated with the arrangement according to the invention approximately one stack length below the clamping point of the take-off rollers.
  • Figure 5 shows a further possible embodiment of the invention. It shows an arrangement of two outer nozzles 6.11 and 6.12 and a movable nozzle 6.13 arranged in the center (two such nozzles can also be side by side).
  • the nozzles are operated with a time delay, ie the two outer nozzles 6.11 and 6.12 are supplied with compressed air somewhat more (via the feed line 21) than the centrally arranged nozzle 6.13 (via the feed line 20).
  • the two outer nozzles center the sliver during blowing.
  • a short time later (a few tenths of a second) the middle nozzle 6.13 is supplied with compressed air.
  • the nozzle 6.13 is a portable nozzle.
  • the nozzle 6.13 can be displaced in its axial direction towards the sliver.
  • the shift becomes possible when the nozzle 6.13 is supplied with compressed air.
  • the movable body 16 is pressed against the ring spring 17, so that the nozzle 6.13, as an extension of the movable body 16, is pressed and positioned in the immediate vicinity of the sliver 1.
  • the movable body 16 is guided in a guide 15.
  • the nozzle 6.13 additionally carries a bracket 18 in order to detect and avoid the sliver 1 as a whole if it comes into contact with it, that the nozzle is partially immersed in the sliver.
  • This design increases the safety of the belt separation by the proximity that can be achieved between the nozzle and the fiber belt, and it becomes possible to use compressed air at a lower pressure. This reduces the operating costs.

Landscapes

  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
EP93104391A 1992-06-17 1993-03-18 Procédé et dispositif pour séparer un ruban de fibres délivré dans une boîte à un banc d'étirage Expired - Lifetime EP0574659B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4219845 1992-06-17
DE4219845A DE4219845A1 (de) 1992-06-17 1992-06-17 Verfahren und Vorrichtung zur Trennung eines Faserbandes

Publications (2)

Publication Number Publication Date
EP0574659A1 true EP0574659A1 (fr) 1993-12-22
EP0574659B1 EP0574659B1 (fr) 1995-06-21

Family

ID=6461227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104391A Expired - Lifetime EP0574659B1 (fr) 1992-06-17 1993-03-18 Procédé et dispositif pour séparer un ruban de fibres délivré dans une boîte à un banc d'étirage

Country Status (5)

Country Link
EP (1) EP0574659B1 (fr)
JP (1) JPH06294026A (fr)
CZ (1) CZ105193A3 (fr)
DE (2) DE4219845A1 (fr)
ES (1) ES2075737T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681983A1 (fr) * 1994-05-13 1995-11-15 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour positionner le bout d'un ruban de fibres sur un pot plein oblong
FR2797257A1 (fr) * 1999-08-04 2001-02-09 Truetzschler Gmbh & Co Kg Dispositif pour deposer l'extremite d'un ruban de fibres dans un pot a ruban, en particulier un pot de section allongee
CN105297205A (zh) * 2015-11-30 2016-02-03 沈阳宏大纺织机械有限责任公司 并条机自动断条装置及使用该装置的断条方法
CN111893606A (zh) * 2020-08-31 2020-11-06 夏邑县隆顺新材料有限公司 一种纺织纱线断线监测装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59406073D1 (de) * 1993-07-24 1998-07-02 Rieter Ingolstadt Spinnerei Verfahren zur Ablage des Faserbandendes an einer Flachkanne und Vorrichtung zur Durchführung
CN104593913B (zh) * 2015-01-09 2017-08-25 经纬纺织机械股份有限公司 一种棉网吸嘴及其应用的精梳机
CN110304493A (zh) * 2019-07-03 2019-10-08 安徽宏润工业设备安装有限公司 一种纱线卷绕装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217827B (de) * 1960-09-22 1966-05-26 Toyo Boseki Vorrichtung zum Trennen eines Faserbandes bei der Kannenablage von Spinnereivorbereitungs-maschinen, insbesondere Strecken
DE2947342A1 (de) * 1979-01-03 1980-07-17 Heberlein Hispano Sa Vorrichtung zum abtrennen eines faserbandes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217827B (de) * 1960-09-22 1966-05-26 Toyo Boseki Vorrichtung zum Trennen eines Faserbandes bei der Kannenablage von Spinnereivorbereitungs-maschinen, insbesondere Strecken
DE2947342A1 (de) * 1979-01-03 1980-07-17 Heberlein Hispano Sa Vorrichtung zum abtrennen eines faserbandes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681983A1 (fr) * 1994-05-13 1995-11-15 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour positionner le bout d'un ruban de fibres sur un pot plein oblong
EP0681982A1 (fr) * 1994-05-13 1995-11-15 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour sectionner le ruban de fibres à une machine textile livrant du ruban de fibres
FR2797257A1 (fr) * 1999-08-04 2001-02-09 Truetzschler Gmbh & Co Kg Dispositif pour deposer l'extremite d'un ruban de fibres dans un pot a ruban, en particulier un pot de section allongee
CN105297205A (zh) * 2015-11-30 2016-02-03 沈阳宏大纺织机械有限责任公司 并条机自动断条装置及使用该装置的断条方法
CN111893606A (zh) * 2020-08-31 2020-11-06 夏邑县隆顺新材料有限公司 一种纺织纱线断线监测装置

Also Published As

Publication number Publication date
JPH06294026A (ja) 1994-10-21
ES2075737T3 (es) 1995-10-01
EP0574659B1 (fr) 1995-06-21
DE59300278D1 (de) 1995-07-27
CZ105193A3 (en) 1994-02-16
DE4219845A1 (de) 1993-12-23

Similar Documents

Publication Publication Date Title
EP0528884B1 (fr) Procede et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile
DE4418603C2 (de) Drahtführungsvorrichtung für eine funkenerosive Drahtschneidemaschine
DE2150331A1 (de) Verfahren und Vorrichtung zur Reinigung von Spinnkammern
DE3034812A1 (de) Vorrichtung zum automatischen einfuehren einer lunte in einen trichter
CH680128A5 (fr)
EP0574659B1 (fr) Procédé et dispositif pour séparer un ruban de fibres délivré dans une boîte à un banc d'étirage
DE2543767A1 (de) Verfahren und vorrichtung zum pneumatischen abloesen und ansaugen eines gebrochenen fadenendes
EP1217109A2 (fr) Dispositif de filage
DE2646921B1 (de) Doppeldrahtzwirnmaschine
DE4424462A1 (de) Vorrichtung zum Bereitlegen des Fadenendes an Spinnkopsen für den nachfolgenden Abspulprozeß an einer Spulmaschine
DE3924897C2 (fr)
EP0411382B1 (fr) Dispositif de préparation pour dévider l'extrémité de fil dans le bout du fuseau
EP0162367A1 (fr) Procédé et dispositif pour la préparation de l'extrémité de fil pour la remise en route d'une machine à bout libéré
DE10201533B4 (de) Offenend-Rotorspinnmaschine
EP0527355A1 (fr) Procédé et dispositif pour l'introduction pneumatique d'une mèche de fibres dans un métier à filer
DE2817478C2 (de) Vorrichtung zum Einführen mindestens eines Fadens in eine Texturierdüse
DE19519827C2 (de) Fadenendsuchvorrichtung
DE3828189A1 (de) Verfahren und vorrichtung zum anspinnen eines doppelfadens nach einem fadenbruch
DE10144570A1 (de) Spinnmaschine mit Absaugeinrichtung
EP0505715B1 (fr) Dispositif pour échanger les curseurs de métiers à filer ou à retordre
DE3427356A1 (de) Verfahren und vorrichtung zum anspinnen eines fadens an einer oe-spinnvorrichtung
DE2320392C2 (de) Vorrichtung zum Positionieren des Spindelrotors einer Doppeldrahtzwirnspindel
DE69406540T2 (de) Verfahren zum reinigen der dusenspalte einer blasvorrichtung und blasvorrichtung
DE10358155B4 (de) Vorrichtung zum Überführen einer Materialbahn
DE2947342A1 (de) Vorrichtung zum abtrennen eines faserbandes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19930318

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR IT

17Q First examination report despatched

Effective date: 19940228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT

REF Corresponds to:

Ref document number: 59300278

Country of ref document: DE

Date of ref document: 19950727

ITF It: translation for a ep patent filed
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2075737

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960319

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980430

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19970410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050318