EP0175056A1 - Dispositif de transport pneumatique de flocons de fibres - Google Patents

Dispositif de transport pneumatique de flocons de fibres Download PDF

Info

Publication number
EP0175056A1
EP0175056A1 EP85106725A EP85106725A EP0175056A1 EP 0175056 A1 EP0175056 A1 EP 0175056A1 EP 85106725 A EP85106725 A EP 85106725A EP 85106725 A EP85106725 A EP 85106725A EP 0175056 A1 EP0175056 A1 EP 0175056A1
Authority
EP
European Patent Office
Prior art keywords
channel
control
shafts
shaft
control elements
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
EP85106725A
Other languages
German (de)
English (en)
Other versions
EP0175056B1 (fr
Inventor
Paul Stäheli
Urs Stähli
Fritz Knabenhans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT85106725T priority Critical patent/ATE32918T1/de
Publication of EP0175056A1 publication Critical patent/EP0175056A1/fr
Application granted granted Critical
Publication of EP0175056B1 publication Critical patent/EP0175056B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/08—Air draught or like pneumatic arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87249—Multiple inlet with multiple outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87788—With valve or movable deflector at junction
    • Y10T137/87812—Pivoted valve or deflector

Definitions

  • the present invention relates to a pneumatic transport system for fiber flakes according to the preamble of claim 1.
  • German Offenlegungsschrift No. 1 685 613 shows a feeding device with a transport channel, the channel sections located between filling chutes continuously expanding from one chute to the next. This serves to slow down the transport air on the inlet side of the shafts and to accelerate it on the outlet side.
  • insert plates are provided at the inlet and outlet openings of the feed shafts, which are arranged perpendicular to the direction of flow of the transport air. Such an inserting of plates, which is necessary for changing the flow rate, is impractical in terms of handling.
  • the position of the plates perpendicular to the flow direction causes a strong swirling of the air and thus an increase in the drive energy required to generate the transport flow.
  • Swiss patent specification No. 370 680 shows an air duct in which, at the location of the filling shafts, deflection flaps are provided on the rear side (with respect to the direction of the air flow). These flaps are used to redirect the fiber flakes into the corresponding filling shaft. The air acceleration caused by these flaps only occurs on the rear side of the filling shafts and thus only after the fiber flakes have essentially already passed the shaft opening.
  • Claim 2 relates to a particularly advantageous embodiment of the invention.
  • fiber material of two different types is fed to a group of cards.
  • the number of cards in the group fed with fiber material of one type and the number of cards in the group fed with fiber material of the other type can be selected and varied as desired by adjusting the control members.
  • This embodiment thus enables increased flexibility of a system with regard to the fiber material allocation to its cards or shafts.
  • FIGS. 1 and 2 shows an elongated channel 1 of a constant, rectangular cross section, which is higher than it is wide. Through this, fiber flakes are transported in the direction of arrow 2 by means of a transport medium, for example air, which is moved by a blower 3 (only shown in FIG. 1).
  • a transport medium for example air
  • a blower 3 only shown in FIG. 1
  • Each shaft has at its lower end e.g. Feed rollers, by means of which the fiber material is fed to a carding machine. The feed rollers and cards are not shown in the figures.
  • further shafts can be provided above each shaft 4 to 9, the bottom surface of the channel 1 has an opening 11 adapted to the corresponding shaft.
  • Each of the filling chutes 4 to 9 has a rectangular cross section, the long sides of which are transverse to the longitudinal direction of the cards and are parallel to the plane of the drawing and thus parallel to channel 1. There is therefore a so-called cross-feed.
  • Each control element 12 comprises a control plate 13, which is pivotably attached to a pivot axis 14 arranged perpendicular to the longitudinal direction of the channel 1 and within the channel 1 in any pivot positions is adjustable and fixable in these.
  • Each of the two control elements 12, which are located between adjacent shafts 4 to 9, is assigned to a shaft.
  • the control element on the left in the figures and thus also its control plate 13 is assigned to the shaft 6 and the control element 12 on the right in the figures or its control plate 13 is assigned to the shaft 7.
  • Each control plate 13 extends from its pivot axis 14 towards the shaft 4 to 9, to which it is assigned.
  • the pivot axes 14 are located on the bottom surface of the channel 1.
  • a locking wall 15 is attached to the end of each control plate 13 facing away from the axis 14. This extends downwards from this end into the assigned shaft 4 to 9.
  • the locking walls 15 extend downward by such an amount that they remain immersed in their assigned shafts 4 to 9 in all swivel positions of the control plates 13. So that there is little clearance when the control plates 13 are pivoted about their axes 14 between the locking walls 15 and the upper transverse edges 16 of the shafts 4 to 9, these walls 15 are advantageously curved, with their pivot axes 14 as centers of curvature, and are also the upper parts the filling shafts 4 to 9 adapted to the shape of the barrier walls, as shown in the drawing. This prevents fiber material from getting behind the barrier walls 15 and under the control plates 3.
  • the transport system shown has the advantage that it is easily possible to reverse the direction of the flock transport in the transport channel 1.
  • the duct 1 is closed at the point at which the blower 3 is located or is connected to a return line and a blower 17 shown in broken lines is provided at the other end. This moves the transport medium in the direction of the dashed arrow 18.
  • the plates 13 previously used for regulation are placed in their horizontal position and those control plates 13 which extend from their pivot axis 14 in the direction of flow of the medium according to arrow 18 are used.
  • the statements made above regarding the regulation of the speed of the transport medium apply analogously.
  • the provision of the control elements 12 according to the invention thus enables regulation of the fiber flakes to be deposited, i.e. regulation of the amount of flakes in each shaft regardless of the direction in which the flakes are transported in channel 1.
  • the use of the transport system is thus more versatile. No changes need to be made to channel 1 or shafts 4 to 9. Only the control members 12 have to be set according to the conditions.
  • control members 12 are designed in such a way that they can additionally be optionally set in a closed position in which the channel 1 is blocked for the transport medium.
  • a closed position is obtained by bringing the edge of a control member 12 formed by the control plate 13 and the barrier wall 15 into contact with the top surface 19 of the channel 1. This is the case in FIG. 2 for the control members 12 located between the shafts 6 and 7.
  • the embodiment according to claim 2 thus allows the number of cards in a group to which fiber material of one type and the number of cards in this group to which fiber material of another type is to be chosen as desired. To carry out, only the control members 12 have to be set accordingly, which means an extremely simple process.
  • the bottom 20 of the channel 1 below the control elements 12 can be omitted entirely.
  • the pivot axes 14 are formed by waves carried by both side walls of the channel.
  • the channel 1 used had a width of 17 cm and a height of 40 cm. In one case, the total amount of transport air supplied was 0.44 m3 / s (cubic meters per second). There were 6 shafts and they were supplied by means of a transport medium flowing in the shaft in only one direction. The positions of the control elements 12 shown in FIG. 1 do not correspond to those in the examinations.
  • the speed of the transport fluid i.e. the transport air should be greater than 2 m / s (meters per second) and less than 10 m / s, preferably greater than 3 m / s and less than 8 m / s. If the air speed is too low, the flakes start to roll with difficulty and if the air speed is too high they fly over the shafts.
  • the system according to the invention with a total of 6 loaded shafts, up to three shafts can be temporarily parked.
  • the conditions begin to become unfavorable because the air speed becomes too high at the first, ie at the second to last shaft (shaft 8).
  • the system according to the invention has the advantage of allowing approximately half of them to be stopped at the same time without the occurrence of disadvantageous consequences, without the need for control organs to be readjusted.
  • the speeds of the transport air are still within the range between 2 m / s and 10 m / s. If the case arises that four of the six cards have to be shut down at the same time, this can be done by slightly reducing the amount of supply air. Such a reduction in the amount of feed air can e.g. by means of a regulation of the blower motor provided for this purpose or by changing a gear ratio in the transmission provided for this purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP85106725A 1984-08-28 1985-05-31 Dispositif de transport pneumatique de flocons de fibres Expired EP0175056B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106725T ATE32918T1 (de) 1984-08-28 1985-05-31 Pneumatische transportanlage fuer faserflocken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4119/84 1984-08-28
CH411984 1984-08-28

Publications (2)

Publication Number Publication Date
EP0175056A1 true EP0175056A1 (fr) 1986-03-26
EP0175056B1 EP0175056B1 (fr) 1988-03-09

Family

ID=4270165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106725A Expired EP0175056B1 (fr) 1984-08-28 1985-05-31 Dispositif de transport pneumatique de flocons de fibres

Country Status (6)

Country Link
US (1) US4648754A (fr)
EP (1) EP0175056B1 (fr)
JP (1) JPS6163723A (fr)
AT (1) ATE32918T1 (fr)
DE (1) DE3561827D1 (fr)
IN (1) IN165135B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143485A (en) * 1989-06-16 1992-09-01 Maschinenfabrik Rieter Ag Transport air control
DE102004060403A1 (de) * 2004-12-14 2006-07-06 Trützschler GmbH & Co KG Vorrichtung in der Spinnereivorbereitung zur Speisung einer Mehrzahl von Füllschächten, insbesondere Mischer, mit Fasermaterial
DE202020101190U1 (de) 2019-03-08 2020-03-12 Maschinenfabrik Rieter Ag Vorrichtung zur Speisung von Karden
EP4303348A1 (fr) * 2022-07-06 2024-01-10 Trützschler Group SE Dispositif d'alimentation pneumatique d'un matériau fibreux à une pluralité de machines textiles et procédé utilisant ce dispositif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769873A (en) * 1987-02-24 1988-09-13 Hergeth Hollingsworth Gmbh Textile fiber distribution ramp for fiber batt forming apparatus
US5040929A (en) * 1989-11-30 1991-08-20 Fuller Company Loading system for particulate materials
DE4131758A1 (de) * 1991-09-24 1993-03-25 Hollingsworth Gmbh Vorrichtung und verfahren zum pneumatischen speisen von mehreren speiseschaechten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE373722C (de) * 1923-04-14 Rieter Joh Jacob & Cie Ag Baumwoll-Transportanlage
DE488332C (de) * 1928-02-11 1929-12-28 Paul Pollrich & Co G M B H Umschaltvorrichtung fuer Einrichtungen zum Foerdern von Fasergut mittels Druckluft
GB1178484A (en) * 1966-06-29 1970-01-21 Fiber Controls Corp Material Distributing System

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1099945B (de) * 1957-10-25 1961-02-16 Friedrich Tonne Dipl Ing Rohrpoststation, insbesondere fuer Wendebetrieb
CH370680A (de) * 1959-06-01 1963-07-15 Rieter Ag Maschf Automatische Karderie
US3029477A (en) * 1958-09-19 1962-04-17 Rieter Joh Jacob & Cie Ag Automatic carding plant
FR1439131A (fr) * 1965-04-03 1966-05-20 Installation pour l'alimentation en fibres d'un ensemble de machines textiles connectées en série le long d'une canalisation
US3326609A (en) * 1965-08-27 1967-06-20 Curlator Corp Fiber distributing system
US3473848A (en) * 1966-04-22 1969-10-21 Tmm Research Ltd Textile cards
US3649082A (en) * 1970-01-26 1972-03-14 Fiber Controls Corp Multiple source material distributing system
US3851924A (en) * 1970-09-25 1974-12-03 Crompton & Knowles Corp Fiber distribution apparatus
JPS5213748B2 (fr) * 1972-06-26 1977-04-16
JPS5126536A (ja) * 1974-08-30 1976-03-04 Canon Kk Kogakusochi
JPS525614A (en) * 1975-07-02 1977-01-17 Kawasaki Steel Corp Production process of steel of extremely low carbocontent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE373722C (de) * 1923-04-14 Rieter Joh Jacob & Cie Ag Baumwoll-Transportanlage
DE488332C (de) * 1928-02-11 1929-12-28 Paul Pollrich & Co G M B H Umschaltvorrichtung fuer Einrichtungen zum Foerdern von Fasergut mittels Druckluft
GB1178484A (en) * 1966-06-29 1970-01-21 Fiber Controls Corp Material Distributing System

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143485A (en) * 1989-06-16 1992-09-01 Maschinenfabrik Rieter Ag Transport air control
DE102004060403A1 (de) * 2004-12-14 2006-07-06 Trützschler GmbH & Co KG Vorrichtung in der Spinnereivorbereitung zur Speisung einer Mehrzahl von Füllschächten, insbesondere Mischer, mit Fasermaterial
US7506411B2 (en) 2004-12-14 2009-03-24 TRüTZSCHLER GMBH & CO. KG Apparatus for feeding a plurality of charging shafts, especially a mixer, with fibre material
DE202020101190U1 (de) 2019-03-08 2020-03-12 Maschinenfabrik Rieter Ag Vorrichtung zur Speisung von Karden
EP4303348A1 (fr) * 2022-07-06 2024-01-10 Trützschler Group SE Dispositif d'alimentation pneumatique d'un matériau fibreux à une pluralité de machines textiles et procédé utilisant ce dispositif

Also Published As

Publication number Publication date
DE3561827D1 (en) 1988-04-14
IN165135B (fr) 1989-08-19
JPS6163723A (ja) 1986-04-01
ATE32918T1 (de) 1988-03-15
US4648754A (en) 1987-03-10
EP0175056B1 (fr) 1988-03-09

Similar Documents

Publication Publication Date Title
DE2804413C3 (de) Verfahren und Vorrichtung zum Beschicken einer Karde
DE3713862A1 (de) Verfahren und spinnvliesanlage zur herstellung eines spinnvlieses aus synthetischem endlosfilament
DE2838445C3 (de) Pneumatisch betriebene Maschine zum Verteilen von körnigem Gut
DE1761229B2 (de) Stoffauflauf fur Papiermaschinen
DE1455863A1 (de) Klimaanlage fuer Kraftfahrzeuge
DE1510413A1 (de) Anlage zur Beschickung hintereinander angeordneter Textilmaschinen,insbesondere Krempeln,mit Faserbuendeln
EP0175056B1 (fr) Dispositif de transport pneumatique de flocons de fibres
DE2264299A1 (de) Vorrichtung zum abscheiden von aufgeloesten faserflocken aus einem foerderluftstrom
DE69412800T2 (de) Wasserverteilung aus kühlturm
DE69410401T2 (de) Bandförderer, insbesondere für einen Transportbetonmischer
DE3417370A1 (de) Gehaeuse fuer einen waermetauscher in einer klimatisierungsanlage, insbesonere fuer den fahrerraum eines fahrzeuges
CH680669A5 (fr)
DE2207484B2 (de) Verfahren zur Steuerung der Mahlgutmenge in einer Mahlkammer eines Kugelmühlenrohres sowie Vorrichtung zur Durchführung dieses Verfahrens
EP3985151B1 (fr) Machine pour la préparation à la filature
EP0181452B1 (fr) Conduit de transport pour flocons de fibre
EP0494948B1 (fr) Demeleur multiballes
DE2007838C3 (fr)
DE3712522C2 (fr)
DE69000162T2 (de) Geneigter rollenfoerderer.
DE3407458A1 (de) Verfahren und vorrichtung zum durchfluten eines von einer wandung umgebenen raumes mit einem gas
EP0265783A2 (fr) Dispositif d'alimentation pour broyeurs à cylindres, en particulier pour graines oléagineuses
DE2137913C3 (fr)
DE2163285A1 (de) Vorrichtung zur kontinuierlichen Trocknung und Appretur von Flächenbandmaterialien, insbesondere Textilien
DE2952764C2 (de) Durchlauflager für stabförmige Gegenstände
DE3709936C1 (de) Kuehlvorrichtung fuer Drahtwindungen

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19860325

17Q First examination report despatched

Effective date: 19870526

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 32918

Country of ref document: AT

Date of ref document: 19880315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3561827

Country of ref document: DE

Date of ref document: 19880414

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910416

Year of fee payment: 7

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

Ref country code: NL

Payment date: 19910531

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19920424

Year of fee payment: 8

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

Ref country code: NL

Effective date: 19921201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930531

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

Ref country code: GB

Payment date: 19960415

Year of fee payment: 12

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

Ref country code: CH

Payment date: 19960502

Year of fee payment: 12

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

Ref country code: LI

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

Effective date: 19970531

Ref country code: GB

Effective date: 19970531

Ref country code: CH

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

Effective date: 19970531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970531

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

Ref country code: DE

Payment date: 19980425

Year of fee payment: 14

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: 20000301