EP1914336B1 - Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine - Google Patents

Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine Download PDF

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Publication number
EP1914336B1
EP1914336B1 EP06122495A EP06122495A EP1914336B1 EP 1914336 B1 EP1914336 B1 EP 1914336B1 EP 06122495 A EP06122495 A EP 06122495A EP 06122495 A EP06122495 A EP 06122495A EP 1914336 B1 EP1914336 B1 EP 1914336B1
Authority
EP
European Patent Office
Prior art keywords
air
negative pressure
connector
removing apparatus
yarn
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.)
Not-in-force
Application number
EP06122495A
Other languages
English (en)
French (fr)
Other versions
EP1914336A1 (de
Inventor
Kuo-Jung Kao
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.)
Pai Lung Machinery Mill Co Ltd
Original Assignee
Pai Lung Machinery Mill Co Ltd
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 Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Priority to EP06122495A priority Critical patent/EP1914336B1/de
Priority to AT06122495T priority patent/ATE408722T1/de
Priority to DE602006002825T priority patent/DE602006002825D1/de
Publication of EP1914336A1 publication Critical patent/EP1914336A1/de
Application granted granted Critical
Publication of EP1914336B1 publication Critical patent/EP1914336B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/32—Devices for removing lint or fluff

Definitions

  • the present invention relates to a yarn debris removing apparatus according to the preamble of claim 1.
  • Circular knitting machines are widely used nowadays in the textile industry. Many new types of circular knitting machines have been developed to increase operation efficiency and enrich function. These days there are circular knitting machines that can change yarns to alter colors and patterns of the fabrics. This is accomplished by altering different color of yarns on the needles. Each time the yarn of one color is changed, the original yarn has to be cut off, and another color of yarn is used to continue knitting operation. If the debris of the cut off yarn is not properly handled and scatters, it could be gathered in the fabric and form small patches of motley patterns. Removing the yarn debris takes a great deal of extra labor and time.
  • R.O.C. patent publication No. 182863 discloses a technique which has an air duct extended from the interior of a circular knitting machine to connect to a suction machine located outside the knitting machine. It has to provide an extra blower outside the knitting machine to generate suction force. As the air duct is extended from the interior of the knitting machine to the blower, the air duct is too long and bent and twisted. As a result the suction force decreases. And yarn debris and flints tend to accumulate in the duct and result in clogging. Utilization efficiency suffers.
  • US-patent 7,017,375 B1 discloses a yarn debris removing apparatus according to the preamble of claim 1.
  • the yarn debris removing apparatus has a cylinder rotating about a center shaft and contains a plurality of needles, which are movable to perform kitting operation.
  • the yarn debris removing apparatus aims to remove yarn debris generated during the knitting operation of the circular discoloration knitting machine and comprises a pressurized air generator to supply compressed air; an electric adaptor which has an air intake connector fixedly located on an upper side of the circular discoloration knitting machine to conned to the pressurized air generator to receive the compressed air; and an air outlet connector.
  • GB 842 174 A discloses the use of negative pressure generators connected to filter nets for collecting the waist.
  • R.O.C. patent publication No. 517722 discloses another technique which has a blower to generate airflow to prevent yarn flints and debris depositing on the knitting machine. It also has a lengthy duct that weakens the airflow. Hence a powerful blower has to be used. The cost is higher and maintenance is more difficult. All the conventional techniques still leave a lot to be desired. There are still rooms for improvement.
  • the air compressor is connected to a rotary connector on an upper side of a circular discoloration knitting machine through a connection duct.
  • the rotary connector has a lower end turnable with the circular discoloration knitting machine.
  • Compressed air is sent to a negative pressure generator through the rotary connector.
  • a negative pressure is formed in a negative pressure suction nozzle of the negative pressure generator.
  • a suction force is generated to suck yarn debris cut off in the circular discoloration knitting machine.
  • the discarded yarn debris is discharged through another end of the negative pressure generator and collected in a dust collection net. Air is filtered and cleaned.
  • the dust collection net and the negative pressure generator are constantly directed towards the circular discoloration knitting machine to suck the yarn debris.
  • the duct collection net is located inside the circular discoloration knitting machine and is rotated therewith. It can be directed constantly to the needles where yarn changing takes place to suck the yarn debris, thus yarn debris collecting efficiency increases.
  • FIG. 1 shows an embodiment of the invention.
  • the yarn debris removing apparatus for circular discoloration knitting machines of the invention is installed in the center of a circular discoloration knitting machine. It mainly includes a filter net 1 and a negative pressure generator 2 connecting to the filter net 1 through a hose 10.
  • the filter net 1 and the negative pressure generator 2 are fastened to a fabric extension holding bracket 9 of the circular discoloration knitting machine through a L-shaped anchor rack 91.
  • the negative pressure generator 2 is connected to an electric adaptor on an upper side that has a power input connector on an upper portion and a power output connector on a lower end, and has a passage to allow air to pass through.
  • the electric adaptor may be a rotary connector 3 with another end connecting to a pressurized air generator such as an air compressor 4.
  • the negative pressure generator 2, rotary connector 3 and air compressor 4 are linked through a connection duct 5 to deliver compressed air so that the negative air generator 2 can generate a negative pressure through the compressed air to suck the discarded yarn debris.
  • the filter net 1 is wedged in an iron frame 11.
  • the iron frame 11 and the L-shaped anchor rack 91 are firmly fastened to the fabric extension holding bracket 9.
  • the L-shaped anchor rack 91 may also hold the hose 10 and the negative pressure generator 2.
  • the filter net 1 is connected to an air outlet 23 on one end of the negative pressure generator 2 through the hose 10.
  • the negative pressure generator 2 has a negative pressure suction nozzle 21 on another end.
  • the negative pressure generator 2 further has an air inlet 22 on an outer side to channel the compressed air into the negative pressure generator 2 through the connection duct 5.
  • FIGS. 3 and 4 show an embodiment of the invention in an assembled condition and the rotary connector.
  • the negative pressure generator 2 connected to the filter net 1 has the air outlet 23 on one end and the negative pressure suction nozzle 21 on another end.
  • the negative pressure suction nozzle 21 is directed towards needles 81 of a selected cylinder 8 where change of yarns takes place.
  • the negative pressure generator 2 further has the air inlet 22 on the outer side to couple with the connection duct 5 which runs through a ball disk located above the fabric extension holding bracket 9 and a center shaft 6 in the center to be connected to an electric connector located on an upper side of the center shaft 6.
  • the electric connector is a rotary connector 3 which has an anchor portion 31 and a rotary portion 32 that can rotate relative to each other through a washer 35 and a bearing 36 interposed between them, and also allow electricity and air to pass through.
  • the anchor portion 31 and the rotary portion 32 are electrically connected through a mercury or carbon brush contact, and also have a passage between them to allow air to pass through so that the negative pressure generator 2 in the circular discoloration knitting machine can be connected to the air compressor 4 located outside the circular discoloration knitting machine.
  • the rotary portion 32 and the anchor portion 31 have respectively an air outlet connector 34 and an air intake connector 33 that are connected to the connection duct 5 which is connected to the air compressor 4 so that compressed air can pass through the connection duct 5, air intake connector 33 and the passage between the anchor portion 31 and the rotary portion 32 to be delivered through the air outlet connector 34 and the connection duct 5 to the negative pressure generator 2.
  • the air compressor 4 when in use, the air compressor 4 generates compressed air which passes through the connection duct 5 and the rotary connector 3, and the air inlet 22 to the negative pressure generator 2.
  • the negative pressure generator 2 controls air through an inclined surface and alterations of duct size, and discharges the air through the air outlet 23 so that the negative pressure suction nozzle 21 on another end has a negative pressure and generates a suction force.
  • the negative pressure suction nozzle 21 can be directed constantly to the needles 81 where change of the yarns takes place.
  • the yarn debris removing apparatus of the invention when the circular discoloration knitting machine is in operation, as the yarn debris removing apparatus of the invention is fastened to the fabric extension holding bracket 9, it can be rotated with the circular discoloration knitting machine. Air is channeled in through the rotary connector 3. Tangling of the yarns can be prevented.
  • the apparatus of the invention is constantly directed towards the needles 81 where change of the yarns takes place to suck the discarded yarn debris.
  • the yarn debris is conveyed through the air outlet 23 and hose 10 to the filter net 1 to be filtered out and collected for centralized treatment.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (9)

  1. Vorrichtung zum Entfernen von Garnresten für eine Farb-Rundstrickmaschine, die einen Zylinder (8) aufweist, der sich um eine zentrale Welle (6) dreht, und die eine Mehrzahl von Nadeln (81) aufweist, die beweglich sind, um einen Strickvorgang auszuführen, welche Vorrichtung zum Entfernen von Garnresten Garnreste entfernen soll, die während des Strickvorgangs der Farb-Rundstrickmaschine erzeugt werden, und umfasst:
    eine Druckluft-Erzeugungseinrichtung, um Druckluft zuzuführen;
    eine elektrische Anschlussvorrichtung, die einen Lufteinlass-Verbinder (33) aufweist, der auf einer Oberseite der Farb-Rundstrickmaschine befestigt ist, um mit der Druckluft-Erzeugungseinrichtung zu verbinden, um die Druckluft zu empfangen; und
    einen Luftauslass-Verbinder (34);
    dadurch gekennzeichnet, dass der Luftauslass-Verbinder (34) an einem unteren Ende vorgesehen ist, das sich gemeinsam mit dem Zylinder (8) dreht, und mit dem Lufteinlass-Verbinder (33) verbunden ist, um die Druckluft auszugeben;
    wobei die Vorrichtung zum Entfernen von Garnresten außerdem umfasst:
    eine Unterdruck-Erzeugungseinrichtung (2), die unterhalb des Luftauslass-Varbinders (34) befestigt ist und sich synchron mit diesem dreht und einen Lufteinlass (22), einen Luftauslass (23) und eine Unterdruck-Saugdüse (21) aufweist,
    wobei der Lufteinlass (22) mit dem Lufteinlass-Verbinder (33) verbunden ist, um die Druckluft einzulassen,
    die Unterdruck-Saugdüse (21) zu den Nadeln (81) hin gerichtet ist und
    der Luftauslass (23) von einem Restesammler bedeckt ist, um die Druckluft abzulassen und die Garnreste herauszufiltern, die während des Strickvorgangs auf den Nadeln (81) erzeugt werden und von der Unterdruck-Saugdüse (21) abgesaugt werden.
  2. Vorrichtung zum Entfernen von Garnresten nach Anspruch 1, wobei die elektrische Anschlussvorrichtung einen Stromeinspeisungsansehluss auf einem oberen Ende, der oberhalb der Strickmaschine befestigt ist, um einen Versorgungsstrom einzugeben, und einen Stromabgabcanschluss auf einem unteren Ende aufweist, der sich mit dem Zylinder (8) dreht und elektrisch leitend mit dem Stromeinspeisungsanschluss verbunden ist, um den Versorgungsstrom auszugeben.
  3. Vorrichtung zum Entfernen von Garnresten nach Anspruch 2, wobei der Stromeinspcisungsanschluss und der Stromabgabeanschluss mittels eines Quecksilberkontakts elektrisch leitend miteinander verbunden sind.
  4. Vorrichtung zum Entfernen von Garnresten nach Anspruch 2, wobei der Stromeinspcisungsanschluss und der Stromabgabcanschluss mittels eines Kohlebürstenkontakts elektrisch leitend miteinander verbunden sind.
  5. Vorrichtung zum Entfernen von Garnresten nach einem der vorhergehenden Ansprüche, wobei die von der Druckluft-Erzeugungseinrichtung erzeugte Druckluft über eine Verbindungsröhre (5) zu dem Lufteinlass-Verbinder (33) weitergeleitet wird.
  6. Vorrichtung zum Entfernen von Garnresten nach einem der Ansprüche 1 bis 4, wobei die Druckluft, die von dem Luftauslass-Verbinder (34) ausgegeben wird, über eine Verbindungsröhre (5) zu dem Lufteinlass (22) weitergeleitet wird.
  7. Vorrichtung zum Entfernen von Garnresten nach einem der vorhergehenden Ansprüche, wobei die Druckluft-Erzeugungseinrichtung ein Luftkompressor (4) ist.
  8. Vorrichtung zum Entfernen von Garnresten nach einem der vorhergehenden Ansprüche, wobei der Restesammler ein Filternetz (1) ist.
  9. Vorrichtung zum Entfernen von Garnresten nach einem der vorhergehenden Ansprüche, wobei die Unterdruck-Saugdüse (21) zu den Nadeln (81) hin gerichtet ist, wo ein Wechsel von Garnen mit verschiedenen Farben für den Strickvorgang stattfindet.
EP06122495A 2006-10-18 2006-10-18 Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine Not-in-force EP1914336B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06122495A EP1914336B1 (de) 2006-10-18 2006-10-18 Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine
AT06122495T ATE408722T1 (de) 2006-10-18 2006-10-18 Vorrichtung zum entfernen von faserresten in einer rundstrickmaschine
DE602006002825T DE602006002825D1 (de) 2006-10-18 2006-10-18 Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06122495A EP1914336B1 (de) 2006-10-18 2006-10-18 Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine

Publications (2)

Publication Number Publication Date
EP1914336A1 EP1914336A1 (de) 2008-04-23
EP1914336B1 true EP1914336B1 (de) 2008-09-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122495A Not-in-force EP1914336B1 (de) 2006-10-18 2006-10-18 Vorrichtung zum Entfernen von Faserresten in einer Rundstrickmaschine

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EP (1) EP1914336B1 (de)
AT (1) ATE408722T1 (de)
DE (1) DE602006002825D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103993418B (zh) * 2014-05-31 2016-02-10 浙江叶晓针织机械有限公司 吸风嘴
CN110629394B (zh) * 2019-09-28 2021-01-12 杭州晨宇布业织造有限公司 一种用于针织大圆机的除尘装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB842174A (en) * 1957-07-22 1960-07-20 Mellor Bromley & Co Ltd Improvements in means for removing fluff or lint and the like from machines
JPH05295626A (ja) * 1992-04-16 1993-11-09 Fukuhara Seiki Seisakusho:Kk 集塵・除塵装置におけるフィルターの清掃装置
JPH0921043A (ja) * 1995-07-03 1997-01-21 Gunze Ltd 丸編機用の防塵装置
US7017375B1 (en) * 2005-08-08 2006-03-28 Pai Lung Machinery Mill Co., Ltd. Fiber blowing and heat dissipating system of single-sided circular knitting machine

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Publication number Publication date
DE602006002825D1 (de) 2008-10-30
ATE408722T1 (de) 2008-10-15
EP1914336A1 (de) 2008-04-23

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