EP0298508A1 - Installation pour l'alimentation pneumatique en fibres - Google Patents

Installation pour l'alimentation pneumatique en fibres Download PDF

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Publication number
EP0298508A1
EP0298508A1 EP88110963A EP88110963A EP0298508A1 EP 0298508 A1 EP0298508 A1 EP 0298508A1 EP 88110963 A EP88110963 A EP 88110963A EP 88110963 A EP88110963 A EP 88110963A EP 0298508 A1 EP0298508 A1 EP 0298508A1
Authority
EP
European Patent Office
Prior art keywords
pipe
conveyor
mouth
conveyor system
tube
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
EP88110963A
Other languages
German (de)
English (en)
Other versions
EP0298508B1 (fr
Inventor
Hermann Gasser
Karl Curiger
Hans Rutz
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6331270&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0298508(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP0298508A1 publication Critical patent/EP0298508A1/fr
Application granted granted Critical
Publication of EP0298508B1 publication Critical patent/EP0298508B1/fr
Anticipated expiration legal-status Critical
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
    • 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 present invention relates to a pneumatic tube conveyor for fibers according to the features of the preamble of claim 1.
  • Such tube conveyor systems are used to convey fibers, in particular textile fiber tapes. They have a conveyor tube and a conveyor device which introduces the fibers into an opening of the conveyor tube.
  • a fiber jam can occur, that is to say an operational malfunction of the tube conveyor system.
  • the conveyor must be switched off as soon as possible so that the traffic jam at the mouth of the conveyor pipe does not cause further traffic jams or malfunctions in the area of the conveyor.
  • the object of the present invention is therefore to improve a pneumatic tube conveyor system of the type mentioned in such a way that the conveyor device automatically switches off in the event of a jam in the region of the mouth of the conveyor tube, so that further jams are avoided.
  • a pressure will be exerted on the storage area in the event of a traffic jam in the area of the mouth of the delivery pipe.
  • This pressure builds up when a predetermined pressure is exceeded Threshold a shutdown signal, whereupon the switch immediately turns off the conveyor. In this way, traffic jams in the area of the conveyor device and in front of it are avoided, so that the system can be switched on again after removal of the fiber jam in the area of the mouth of the conveyor pipe.
  • the storage area is formed on a storage plate at the mouth of the delivery pipe. This automatically ensures that when the pipe conveyor system is set up, the storage area is always located at the point where there is a risk of congestion.
  • the baffle plate is designed as an annular flange surrounding the mouth of the conveying pipe, since the conveying device is also switched off when a fiber jam occurs if it initially forms only at a partial area of the mouth.
  • a preferred development of the invention according to claim 4 provides that the stowage surface is attached to a movable part which escapes when pressure is exerted on the stowage surface. This has the advantage that a fiber jam occurring in the area of the mouth of the conveyor pipe not only causes the conveyor device to be switched off immediately via the stowage surface, but that the progress of the fiber jam backwards in the direction of the conveyor device is prevented even more, since the part on which the stowage area is located is appropriate, can dodge to give the fiber jam more space.
  • a particularly preferred embodiment of the invention can be seen in claim 5 in that the delivery pipe has a pipe bend which is pivotally attached to the rest of the delivery pipe with a connection end. On that the end of the delivery pipe is arranged in this embodiment, the mouth of the delivery pipe facing the conveyor. If a fiber jam occurs, not only is the conveying device switched off, but at the same time the pipe elbow swings away when a certain pressure threshold value is exceeded. This has the effect that the mouth is pivoted out of the position previously aligned with the conveying device, so that the fiber jam dissolves by itself in a favorable case before the mouth of the conveying tube. The pipe elbow then only needs to be pivoted back, after which the conveyor system can be put back into operation.
  • a pivot hinge is attached to the connecting end of the pipe elbow with a substantially vertical and arranged at a lateral distance from the mouth pivot axis.
  • the vertical arrangement of the swivel axis means that the effects of gravity can be eliminated.
  • the lateral distance of the pivot axis to the mouth of the pipe elbow ensures that a moment acts on the swivel hinge when a fiber jam occurs, which results in the pipe elbow swiveling out.
  • the pipe bend is arranged substantially horizontally.
  • the elbow includes a substantially right angle.
  • the swivel hinge always has the greatest possible swivel torque when a fiber jam occurs, so that the pipe elbow swings out easily and quickly when a predetermined pressure threshold value caused by the fiber jam is exceeded.
  • the lock is designed as a magnetic lock.
  • An electric or permanent magnet can be used as the magnet.
  • the desired pressure threshold value can be predetermined by selecting the strength of the magnet.
  • the switch for switching off the conveyor is advantageously attached to the connection end of the pipe bend.
  • the switch is designed as a pressure switch which can be actuated by the pivoting movement of the pipe elbow. This means that at the same time as the pipe elbow is swung away, the conveyor is switched off. The fiber jam can therefore evade on the one hand due to the swiveling away of the pipe elbow, and on the other hand an intensification of the jam is avoided.
  • the conveying device comprises a blowing nozzle for shooting in the sliver into the mouth of the conveying tube, the blowing nozzle being arranged essentially axially in front of the mouth of the conveying tube. This type of shooting the fibers into the mouth of the conveyor tube largely prevents a fiber jam in advance.
  • the conveying device has a pair of calender rolls which is arranged between the blowing nozzle and the mouth of the conveying pipe.
  • the fibers are collapsed at this point so that they take up less space in the conveyor tube, from which there is also a reduced risk of congestion.
  • the pneumatic tube conveyor system 1 for fibers for fibers, in particular for textile fiber tapes, comprises a conveyor tube 2 and a conveyor device 3 which can be switched off.
  • the conveyor device 3 serves to insert the fibers 4 or the fiber tapes into an opening 5 of the conveyor tube.
  • the mouth 5 of the delivery pipe 2 at least partially surrounds a storage area 6.
  • the storage area 6 is operatively connected to a switch 7 for switching off the conveying device 3 such that when the pressure occurring at the storage area rises above a predetermined one Value a shutdown signal is generated (see also FIG. 2).
  • the storage surface 6 is formed on a storage plate 8 at the mouth 5 of the delivery pipe 2 as an annular flange surrounding it.
  • the stowage surface 6 is also attached to a part which can be moved when the pressure is exerted on the stowage surface.
  • this movable part is a pipe bend 9 of the delivery pipe 2.
  • the pipe bend 9 is pivotable with a connection end 10 bar connected to the rest of the delivery pipe 2, while the other end 11 of the delivery device 3 facing 5 of the delivery pipe is arranged.
  • a pivot hinge 12 with a substantially vertical pivot axis 13 arranged at a lateral distance from the mouth 5 is attached to the connection end 10 of the pipe bend 9.
  • the pipe bend 9 itself is arranged essentially horizontally, i.e. its two legs lie in a horizontal plane. It can also be clearly seen that the elbow 9 encloses a substantially right angle.
  • a lock 14 is attached by pressure application to the baffle plate 8 and is designed as a permanent magnet in the embodiment shown here.
  • the switch 7 for switching off the conveyor 3 is also arranged at the connection end 10 of the pipe bend 9. It can also be seen that the switch 7 is designed as a pressure switch which can be actuated by the pivoting movement of the pipe bend 9.
  • the switch 7 has an actuating nose 15 which can be actuated by a flange 16 attached to the connection end 10, which flange also carries the counterpart to the magnetic lock 14.
  • the conveying device 3 comprises a blowing nozzle 17 for shooting in the sliver or fibers 4 into the mouth of the conveying tube 2.
  • the blowing nozzle 17 is essentially axially aligned in front of the mouth 5 of the conveying tube 2 arranged, at least if this is in the with the solid line drawn conveyor position.
  • the conveyor 3 also has a pair of calender rollers 18, which is arranged between the blowing nozzle 17 and the mouth 5 of the pipe bend 9.
  • the mode of operation of the tube conveyor system 1 according to the invention is explained in more detail below.
  • the fibers 4 are shot through the blowing nozzle 17 connected to a compressed air supply (not shown here) between the two calender rolls 18 into the mouth 5 of the elbow 9.
  • the fibers 4 are conveyed through the elbow 9 and the rest of the conveyor tube 2.
  • a predetermined pressure threshold value which in the exemplary embodiment shown here also corresponds to a predetermined limit torque
  • the magnetic lock 14 no longer manages to counteract the torque and the pivot axis 12 that occurs.
  • the pipe bend 9 consequently pivots about its axis 12, so that the mouth 5 is pivoted out of its position shown in a solid line, with the blowing nozzle 17 in alignment.
  • the pipe elbow now assumes a position as shown in dashed lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
EP88110963A 1987-07-09 1988-07-08 Installation pour l'alimentation pneumatique en fibres Expired - Lifetime EP0298508B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3722773 1987-07-09
DE3722773A DE3722773C1 (de) 1987-07-09 1987-07-09 Pneumatische Rohrfoerderanlage fuer Fasern

Publications (2)

Publication Number Publication Date
EP0298508A1 true EP0298508A1 (fr) 1989-01-11
EP0298508B1 EP0298508B1 (fr) 1991-07-03

Family

ID=6331270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110963A Expired - Lifetime EP0298508B1 (fr) 1987-07-09 1988-07-08 Installation pour l'alimentation pneumatique en fibres

Country Status (5)

Country Link
US (1) US4967946A (fr)
EP (1) EP0298508B1 (fr)
JP (1) JPH01221525A (fr)
DE (2) DE3722773C1 (fr)
ES (1) ES2023469B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH714868A1 (de) * 2018-04-05 2019-10-15 Rieter Ag Maschf Speisung zu einer Karde.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2036829C1 (ru) * 1992-04-21 1995-06-09 Центральный научно-исследовательский институт хлопчатобумажной промышленности Способ доставки длинномерных непрерывных волокнистых структур и устройство для его осуществления
US6061876A (en) * 1997-06-11 2000-05-16 John D. Hollingsworth On Wheels, Inc. Textile recycling machine
US5930871A (en) * 1998-07-09 1999-08-03 John D. Hollingsworth On Wheels, Inc. Air doffing system for a textile processing machine
JP4725995B2 (ja) * 2005-05-25 2011-07-13 ホソカワミクロン株式会社 繊維回収装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH511179A (de) * 1969-04-25 1971-08-15 Elitex Zavody Textilniho Pneumatischer Kreis zur Regelung der Garnzufuhr in einen Vorratsbehälter
GB1321809A (en) * 1970-07-23 1973-07-04 Rieter Ag Maschf Method and apparatus for supplying fibre material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333267A (en) * 1939-03-03 1943-11-02 Owens Corning Fiberglass Corp Apparatus for the production of glass yarns
BE491249A (fr) * 1948-09-21
DE1276523B (de) * 1961-12-11 1968-08-29 Reiners Walter Dr Ing Pneumatische Vorrichtung zum Aufsuchen und Abziehen des Fadenanfanges einer Textilspule
DE2046716A1 (de) * 1970-09-22 1972-03-30 Siemens Ag Einrichtung zum Abtasten der Schlaufenwarnungsschranken pneumatischer Pufferkammern bei Magnetbandgeräten
US3722733A (en) * 1971-05-17 1973-03-27 R Neumann Fire extinguisher cabinet
SU400634A1 (ru) * 1971-12-30 1973-10-01 Приспособление для улавливания мычки при обрыве пряжи
CH639916A5 (de) * 1979-03-23 1983-12-15 Luwa Ag Vorrichtung zum pneumatischen transport von textilem bandmaterial.
US4676443A (en) * 1985-06-14 1987-06-30 Simmons Mark H Yarn dispensing device
DE3627513C2 (de) * 1986-08-13 1996-09-19 Barmag Barmer Maschf Düse zum Texturieren eines laufenden Fadens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH511179A (de) * 1969-04-25 1971-08-15 Elitex Zavody Textilniho Pneumatischer Kreis zur Regelung der Garnzufuhr in einen Vorratsbehälter
GB1321809A (en) * 1970-07-23 1973-07-04 Rieter Ag Maschf Method and apparatus for supplying fibre material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH714868A1 (de) * 2018-04-05 2019-10-15 Rieter Ag Maschf Speisung zu einer Karde.

Also Published As

Publication number Publication date
EP0298508B1 (fr) 1991-07-03
US4967946A (en) 1990-11-06
DE3863496D1 (de) 1991-08-08
ES2023469B3 (es) 1992-01-16
DE3722773C1 (de) 1989-01-12
JPH0329895B2 (fr) 1991-04-25
JPH01221525A (ja) 1989-09-05

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