EP0770715A1 - Enlèvement des déchets dans le cardage textile - Google Patents

Enlèvement des déchets dans le cardage textile Download PDF

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Publication number
EP0770715A1
EP0770715A1 EP96307739A EP96307739A EP0770715A1 EP 0770715 A1 EP0770715 A1 EP 0770715A1 EP 96307739 A EP96307739 A EP 96307739A EP 96307739 A EP96307739 A EP 96307739A EP 0770715 A1 EP0770715 A1 EP 0770715A1
Authority
EP
European Patent Office
Prior art keywords
contaminants
web
roller
flow
beater
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.)
Withdrawn
Application number
EP96307739A
Other languages
German (de)
English (en)
Inventor
Gary Alfred Robinson
Kenneth Ross Atkinson
Barry Valentine Harrowfield
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.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
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
Priority claimed from AUPN6204A external-priority patent/AUPN620495A0/en
Priority claimed from AUPO2168A external-priority patent/AUPO216896A0/en
Application filed by Commonwealth Scientific and Industrial Research Organization CSIRO filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of EP0770715A1 publication Critical patent/EP0770715A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
    • D01G15/80—Arrangements for stripping cylinders or rollers
    • D01G15/805—Arrangements for stripping cylinders or rollers by suction or blowing
    • 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
    • D01G15/94—Burr-crushing or removing arrangements
    • D01G15/98—Morel or like apparatus

Definitions

  • This invention relates to the removal of contaminant waste in textile carding and is particularly useful in high speed wool carding involving web speeds of 120 m/min or greater.
  • worsted card productivity may be substantially increased without detriment to sliver quality or card yield by substantially increasing the card speed above the conventional level. This was proposed in a paper by Gravolin et al, "Doubling or even tripling worsted card productivity", Proceedings of the Textile Institute Annual World Conference, Sydney, 1988, and a commercial worsted carding machine has recently been offered in which web speeds of the order of 120 m/min are achieved.
  • Cards Carding machines are commonly referred to as “cards”, and this convention will be adopted herein.
  • Vegetable matter is a contaminant in wool that demands efficient removal. This is best achieved as early in the process as practical so that the contaminant particles are removed as whole pieces before they are broken up by the later processes.
  • the conventional approach has been the morel units of the carding machine, and two of these are traditionally fitted between the breast and the swift in the industrial card.
  • the main cylinder of the morel unit known as the morel roller, is clothed with a wire of a special profile which tends to leave the particles of vegetable matter sitting proud of the wool above the wire.
  • a rotating hollow burr beater roller has blades which strike the particles and sweep them into an associated tray attachment along which a further train of blades scrapes the particles along and to one end of the tray, and thence into a waste disposal system.
  • the fitting of the two burr beaters and their associated trays to the morel roller makes for operational problems, e.g. limited access making maintenance and changes to settings difficult.
  • the increase in morel roller diameter is kept to a minimum, and this in turn means the burr beater rollers and their associated trays and scrapers are crowded together into a minimum arc of the morel roller.
  • the invention accordingly provides, in one aspect, apparatus for removing contaminants such as a vegetable matter from a travelling fibre web.
  • the apparatus includes a roller adapted to support and convey a travelling fibre web, and means on the roller to enhance exposure of contaminants from the web. Means is further included to cyclically strike and dislodge contaminants from the web, while a gaseous flow, preferably a locally generated air stream, is disposed about the contaminants.
  • the apparatus also includes duct means for receiving the flow and conducting it away from the web with the dislodged contaminants entrained therein.
  • the invention provides a method of removing contaminants such as vegetable matter from a travelling fibre web, including:
  • the roller adapted to support and convey the web is preferably a morel roller, having a covering of a fine special profile wire providing said means to enhance exposure of contaminants from the web.
  • the means to cyclically strike and dislodge the contaminants from the web is preferably a hollow, bladed burr beater roller, which may itself be of conventional form.
  • a pair of burr beater rollers are provided on a single morel roller.
  • the duct means is arranged for receiving a single gaseous flow in which are entrained the dislodged contaminants from both beater rollers.
  • separate gaseous flows generated about each beater roller combine to form a single outflow.
  • a gaseous flow generated by one beater roller is passed to and about the other beater roller and thereafter forms a single outflow.
  • the entrained contaminants may be recovered from the flow by passing the flow through traversing perforated belt means, on which the contaminants are deposited for lateral conveyance.
  • the duct means advantageously includes a housing extending adjacent the burr beater roller, which housing defines a chamber arranged to receive the flow and the entrained contaminants, and an outlet port and/or duct to which the flow is drawn or driven. There may be provided means to draw the flow from the region adjacent the supporting and conveying roller.
  • the illustrated card 10 is of conventional general configuration to the extent that it includes a series of main carding cylinders including, in sequence, a licker 14, a breast 16, a pair of morels 18,20 and a swift 22.
  • the licker, breast and swift have the usual worker/stripper carding units 24 and transfer from the swift is to a pair of doffer rollers 26a,26b with associated doffer blades (not shown).
  • Each morel is associated with a pair of burr beater units 30 for removing contaminants including vegetable matter in accordance with an embodiment of the invention.
  • the rotation of the burr beater rollers and the morels are indicated by the arrows in the diagrams.
  • the fibre web 5 is fed along the sequence of cylinders at a higher then conventional carding speed, e.g. of the order of 120 m/min.
  • Each worker/stripper unit 24 cooperates with the associated main cylinder in the well known manner, to open up the web and detach a mat of fibre tufts at the worker/cylinder nip and to return the tufts to the main cylinder at the stripper/cylinder nip.
  • the web is double doffed at rollers 26a,26b to form web segments 5a,5b which are subsequently converged at a cone into sliver.
  • each burr beater unit 30 includes a hollow roller 32 with angularly spaced longitudinally extending, and radially projecting blades 33.
  • Roller 32 is disposed within a generally cylindrical complementary housing 34 which is open at 35 adjacent the morel roller.
  • Burr beater roller 32 rotates in the same direction as the morel roller and its blades pass at high speed adjacent to the wire on the morel roller, in a direction opposite the direction of travel of the web.
  • the vegetable matter is sitting proud of the morel wire, and blades 33 strike and dislodge the outstanding contaminant particles 8 into an arcuate space 36 within housing 34.
  • the burr beater blades 33 simultaneously act as a fan and generate a local air flow (represented by arrows 45) into space 36 drawn in from the open front side of housing 34.
  • a rear flap 37 sits closely adjacent the wire on the morel roller to maximise deflection of the air stream and entrained particles into chamber space 34. From here, the particles are directed tangentially through an exit opening 39 into a convergent conduit system 38 and conducted away to a collection point, which may be an entry port of an extended waste disposal duct system.
  • the front side of housing 34 may include an adjustable segment 40 which is moveable to adjust the sides of exit opening 39. Note that the exit channel 38 may leave the housing 34 at any angle that makes for convenient positioning of the collector point.
  • the diameter of the morel roller can be minimised, and can be held, for example, in the traditional range of 350-550mm.
  • Figures 5 to 7 depict options for collection and disposing of the entrained waste in the general configuration of Figure 4.
  • the two ganged burr beaters cooperate with a single, conventional scraper and tray system.
  • the tray 48 with a shallow V-shaped floor 50 extending parallel to roller 32 to receive contaminants entrained in the air stream.
  • a scraper conveyor has scraper blades 52 which traverse the length of the tray to push the collected contaminants to one end for disposal.
  • This combination would require approximately 620mm of arc on the morel roller, if, as is conventional practice, the second burr beater is mounted at top dead centre.
  • Such an arrangement will require a morel roller of at least 800mm diameter. While this is an improvement over the prior double burr beater and tray system, a relatively large morel roller is still required.
  • a further improvement can be made if the second burr beater can operate "uphill” i.e. forward of top dead centre. This is probably feasible with ganged burr beaters where the VM from the first burr beater will be "captured” by the airstream of the second burr beater to convey the waste stream against gravity. This will reduce the arc required on the input side by about 200mm, and so now 400 to 420mm of arc is needed in this sector. Such an arrangement can be sited on the conventional 500mm morel thus widening the scope of application of the more efficient double burr beater concept. In either of these above arrangements, the VM waste stream would be captured in the tray and removed to the side of the machine by the usual system of scrapers.
  • the tray and scraper is replaced by a narrow perforated traversing belt 60 in duct 38" cooperating with suitable control of the airflow so as to direct the VM/air stream onto the belt, thereby controlling the depositing of the VM onto a relatively narrower carrier that at the same time allows the air to separate from the VM by passing through the perforations in the belt.
  • the belt on traversing to one side of the carding machine, then deposits the VM due to the presence of a solid plate behind the perforated belt, causing the VM to drop away from the belt.
  • the surface of the belt is suitably designed to optimise capture and release of the VM.
  • the chamber 64 in which the belt 60 is situated for fitting and driving purposes may be a suitably designed plenum narrow at one end so as to aid removal of the laden air.
  • the worst situation with regard to occupying maximum room on the morel, approximately 420mm of arc, is shown in Figure 6, and is capable of adaptation to a conventional 500mm morel.
  • a third option would be to make full use of the air flow generated by the burr beaters and use it as the sole source of transport.
  • Such an arrangement is shown in Figure 7 and would require optimisation of the WM/air conveyancing duct 38a, to ensure the satisfactory removal of VM, entrapped wool fibre, and the air, across the full width of the machine.
  • This option would require an arc of only 420mm and could therefore also be fitted to a morel of 500mm diameter.
  • the card 10 includes the usual drive and linkage mechanisms for rotating the cylinders and rollers, and operating the other units, at the desired relative speeds and cycles.
  • This provision of a drive and linkage mechanism to burr beater units 30 is in accordance with conventional textile machinery practice and is not accordingly further discussed in detail.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP96307739A 1995-10-27 1996-10-25 Enlèvement des déchets dans le cardage textile Withdrawn EP0770715A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPN6204/95 1995-10-27
AUPN6204A AUPN620495A0 (en) 1995-10-27 1995-10-27 Removal of contaminant waste in textile carding
AUPO2168/96 1996-09-06
AUPO2168A AUPO216896A0 (en) 1996-09-06 1996-09-06 Removal of contaminant waste in textile carding

Publications (1)

Publication Number Publication Date
EP0770715A1 true EP0770715A1 (fr) 1997-05-02

Family

ID=25645044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96307739A Withdrawn EP0770715A1 (fr) 1995-10-27 1996-10-25 Enlèvement des déchets dans le cardage textile

Country Status (1)

Country Link
EP (1) EP0770715A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1045047A1 (fr) * 1999-04-15 2000-10-18 F.O.R. ING. GRAZIANO S.p.A. Appareil d'expulsion d'impuretés vegetales dans une carde dite laine
CN109295560A (zh) * 2018-11-30 2019-02-01 湖北德永盛纺织有限公司 一种梳棉机活动盖板的清洁装置
CN116334859A (zh) * 2023-05-24 2023-06-27 夏津县润通纺织有限责任公司 一种棉纱加工用理线装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE150650C (fr) 1902-06-14
DE291059C (fr) *
FR2232626A1 (en) 1973-06-07 1975-01-03 Schlumberger Cie N Morel type carding engine - includes main carding cylinder cooperating with card rolls and two trash removal rolls
US4064598A (en) * 1969-05-20 1977-12-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Taker-in-part of the conventional flat card
WO1991009164A1 (fr) 1989-12-13 1991-06-27 Commonwealth Scientific And Industrial Research Organisation Machine a carder la laine amelioree
JPH03227413A (ja) * 1990-01-30 1991-10-08 Iwamoto Seisakusho:Kk ランダムウェブの製造装置
EP0517636A1 (fr) * 1991-06-07 1992-12-09 N. SCHLUMBERGER & CIE, S.A. Carde dite "laine"

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291059C (fr) *
DE150650C (fr) 1902-06-14
US4064598A (en) * 1969-05-20 1977-12-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Taker-in-part of the conventional flat card
FR2232626A1 (en) 1973-06-07 1975-01-03 Schlumberger Cie N Morel type carding engine - includes main carding cylinder cooperating with card rolls and two trash removal rolls
WO1991009164A1 (fr) 1989-12-13 1991-06-27 Commonwealth Scientific And Industrial Research Organisation Machine a carder la laine amelioree
JPH03227413A (ja) * 1990-01-30 1991-10-08 Iwamoto Seisakusho:Kk ランダムウェブの製造装置
EP0517636A1 (fr) * 1991-06-07 1992-12-09 N. SCHLUMBERGER & CIE, S.A. Carde dite "laine"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 15, no. 512 (C - 0898) 26 December 1991 (1991-12-26) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1045047A1 (fr) * 1999-04-15 2000-10-18 F.O.R. ING. GRAZIANO S.p.A. Appareil d'expulsion d'impuretés vegetales dans une carde dite laine
CN109295560A (zh) * 2018-11-30 2019-02-01 湖北德永盛纺织有限公司 一种梳棉机活动盖板的清洁装置
CN116334859A (zh) * 2023-05-24 2023-06-27 夏津县润通纺织有限责任公司 一种棉纱加工用理线装置
CN116334859B (zh) * 2023-05-24 2023-08-15 夏津县润通纺织有限责任公司 一种棉纱加工用理线装置

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