EP0431483A1 - Machine de cardage - Google Patents

Machine de cardage Download PDF

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Publication number
EP0431483A1
EP0431483A1 EP90122913A EP90122913A EP0431483A1 EP 0431483 A1 EP0431483 A1 EP 0431483A1 EP 90122913 A EP90122913 A EP 90122913A EP 90122913 A EP90122913 A EP 90122913A EP 0431483 A1 EP0431483 A1 EP 0431483A1
Authority
EP
European Patent Office
Prior art keywords
work roll
card according
drum
breeze
roller
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Withdrawn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
EP90122913A
Other languages
German (de)
English (en)
Inventor
Giancarlo Mondini
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
Publication of EP0431483A1 publication Critical patent/EP0431483A1/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Withdrawn legal-status Critical Current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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/20—Feed rollers; Takers-in

Definitions

  • the present invention relates to a card consisting of a feed roller, a briseur, a reel and a customer, the feed roller, which preferably works together with a trough plate and for feeding a fiber wadding in the area of the breeze, and the brewer sorting out the fiber wadding Fibers transfers the drum that works with the stationary cover, possibly also the revolving cover, and the customer removes a carded fiber pile from the drum.
  • the card which on the one hand is responsible for the breakdown of the fiber flakes into individual parallel fibers and on the other hand for the removal of dirt and short fibers dig is of great importance in all spinning processes.
  • the object of the present invention is to design a card so that when using dirty or inferior cotton this can be processed in such a way that a significant improvement in the quality of the yarn spun from the thread band can be achieved without a substantial loss of fiber material, specifically before especially with regard to the number of thick and thin places and the number of nits.
  • a device which brings about a pre-resolution is provided in the area of the breeze.
  • the degree of dissolution of the fiber pile carried on the drum can be increased and the pre-dissolution is also used to remove dirt and impurities as well as short fibers from the fiber material.
  • the device preferably consists of a work roll, which has a tip set on its surface, which cooperates with the surface of the reel.
  • This work roller combs the fibers on the surface of the reel and removes short fibers and impurities from the fiber pile forming on the surface of the reel.
  • the tip set of the work roll can also work with great advantage with the tip set of the breeze, so that the breeze also combs out the fibers on the surface of the work roll.
  • a prerequisite for this is, of course, that the surface speed of the work roll differs from the surface speed of the reel and that of the beater.
  • this requirement can be achieved practically easily, since the surface speed of the work roll is in the range below 8 m / sec., Preferably below 3 m / sec. and especially at about 1 m / sec. lies. Practical tests have shown that very good results at a surface speed of the work roll of 1 m / sec. can be achieved.
  • the speed and dimensions of the breeze are in the usual ranges, i.e. at a maximum of about 1500 rpm or up to about 35 cm in diameter. These values result in a maximum surface speed of approximately 25 m / sec.
  • the peripheral speed of the work roll determines the amount of waste that is excreted via the work roll, such low speeds lead to a relatively small amount of waste, which is mainly in the form of short fiber dust and dirt, so that very little usable fiber is lost. Should one choose higher peripheral speeds of the work roll for any reason, thereby increasing the amount of waste and usable fiber material being excreted, then this waste can advantageously be fed back into the card, preferably after the impurities have been removed, thereby dissolving the fiber material the surface of the drum is improved overall.
  • Such a return is particularly advantageous if the work roll does not work with the set of the breeze, but only with that of the reel. However, it is preferred if the work roll works with both the reel and the beater. For this purpose, the tips of the work roll set extend to the tips of the sets of the drum and / or the breeze, but without touching them.
  • a cleaning device is preferably provided which cleans the tip set of the work roll.
  • This cleaning device is preferably a rapidly rotating cleaning roller, the work tips or tooth tips up to the tips of the A set of the work roll is sufficient. In this way, the rapidly rotating cleaning roller removes the short fibers and contaminants that have accumulated on the work roller.
  • the cleaning device is preferably arranged between the feed roller that transfers the fiber batting directly to the breeze and the work roller. This enables space-saving accommodation of the pre-resolution device including cleaning device.
  • the fibers and impurities removed by the cleaning device are sucked off by a suction device.
  • This suction device preferably consists of a hood which extends over the length of the cleaning device and merges into a connecting piece.
  • the work roller, the cleaning roller and the hood like the feed roller and the beater, extend over the entire width of the reel.
  • a mudguard that extends from the feed roller or the trough plate cooperating with it around the hood of the cleaning device and around the work roller and preferably up to the drum, thereby forming a box, the interior of which is suctioned off via the hood.
  • the effectiveness of the suction can be varied by a flap or other variable air supply device accommodated in the connecting piece or in the box.
  • the work roll can have the same direction of rotation as the spool, but then the set of the work roll should work with teeth that are opposite to those of the spool. This means that the direction of rotation of the work roll is the same as the direction of rotation of the drum, but the direction of rotation of the beater is opposite.
  • the surface of the work roll in the area adjacent to the beater moves in the same direction as the beater. Due to the different surface speeds of the work roll and the beater, there are no distinct disadvantages.
  • the diameter d of the work roll is relatively small compared to the diameter D of the beater and is preferably in the range between 0.2 and 0.8 d, in particular approximately 0.5 d.
  • the tip set of the work roll does not appear to be extremely critical based on tests carried out to date.
  • the tip set of the work roll can advantageously be a reel set or a take-up set, and it can also be designed as a saw tooth set with undercut teeth.
  • the work roll can be arranged to be adjustable along the surface of the spool away from the briseur or towards the briseur. As a result, the distance between the work tips of the work roll and the clothing tips of the breeze can be changed and adapted to the respective fiber material.
  • An adjustment of the work roll relative to the drum is also provided according to the invention, so that the optimum distance can be selected here as well.
  • the direction of adjustment of the work roll can also be selected such that a displacement of the work roll both to an adjustment of the distance between the work roll and drum as well as an adjustment of the distance Work roller / breeze leads.
  • the cleaning roller is preferably adjustable with the work roller so that the cooperation between these two rollers remains unaffected by this adjustment.
  • the work roll can be brought from an operating position near the drum into a rest position, away from the drum and vice versa. It must be assumed that the same card is used both for processing heavily soiled cotton fibers and for processing cotton fibers with a high degree of purity. In the latter case, the cooperation between the work roll and the reel does not lead to an improvement in the quality of the yarn produced, this cooperation could even lead to a poorer yarn quality due to undesired fiber cuts.
  • the possibility of bringing the work roll into a rest position, for example by pivoting or moving it, enables the user to adjust the card according to the fiber material to be processed.
  • FIG. 1 shows an end view of a schematic representation of a card 10 with a feed roller 12, which works together with a trough plate 14 and feeds a fiber wadding 16 in the direction of a breeze 18.
  • the breeze 18, which carries a sawtooth set 20 in a manner known per se and is rotatably arranged in the card frame, rotates in the direction of the arrow 22 at a surface speed of approximately 12 m per second.
  • the diameter D of the breeze is 253 mm. Due to the rotary movement of the breeze 18, fibers are released from the fiber wadding 16 by the sawtooth set 20 and carried at the tips of the breeze to the area 24 where the surface of the breeze faces the surface of the drum 26.
  • the drum 26 carries, in a manner known per se, a needle set 28 on its surface and rotates in the direction of the arrow 30 at such a rotational speed that the surface of the drum has a peripheral speed of about 31 m / sec. having.
  • the drum 26 thus runs faster in the area 24 than the surface of the beater 18 and the needle assembly 28 largely takes over the fibers carried by the beater 18 and guides them further in the direction of the arrow 30.
  • a predissolution device 32 which essentially consists of a work roller 34, which carries on its surface a lace set 36, preferably a drum set corresponding to the set 28.
  • this work roll 36 rotates in the direction of arrow 38, specifically at a surface speed which is approximately 1 m / sec. lies.
  • the clothing tips of the clothing 36 point in the opposite direction to the clothing tips 28 of the reel 26.
  • a slight distance preferably about 0.1 mm, is provided between the tips of the work roll clothing and the clothing reel 26 tips. Due to the different running speeds of the clothing tips 36 and the clothing tips 28 and the opposite directions of the respective tips, the work roller 34 is able to remove fiber accumulations and protruding dirt parts from the reel.
  • well-combed individual fibers remain on the drum set and are carried with it past the usual stationary covers 40 and the traveling cover 42 until they reach the area of the customer and are taken over there in a manner known per se.
  • the card is also equipped with the usual other devices, for example shell knife bars, in order to reduce the size of any shell parts that are carried with the clothing tips of the reel.
  • the work tips of the work roll are guided so close to the work tips 20 of the breeze that the beater, who is probably with a much higher one Surface speed runs as the work roll 34, causing disintegration of the fiber accumulations carried on the work roll 34 and carrying the disintegrated fibers with it on its surface for a further partial revolution. These fibers are then taken over from the drum surface in the next pass in the area 24. Any remaining, generally short fibers on the surface of the work roller 34 and dirt particles carried by it are then removed by a cleaning device in the form of a rotatable cleaning roller 44, which is designed here as a bristle roller.
  • the bristles 46 of the cleaning roller 44 which are soft, can come into contact with the working tips 36 of the working roller 34 so that a cleaning effect is achieved. It is also fundamentally possible to use a cleaning roller with wire bristles, only then the clothing 36 of the work roller 34 must be designed, for example as a saw tooth set, so that the bristles run in grooves between the individual rows of teeth in order to avoid damage to them. As can be seen, the cleaning roller 44 rotates in the direction of rotation 48 at a surface speed of approximately 20 m per second. The bristles 46 reach the sawtooth tips 36 of the work roll 34 from behind and in this way scrape off adhering fiber and shell particles with high efficiency.
  • a fender 54 forming a box extends from the food roller over the hood 50 and around the cleaning roller and the work roller to the cover of the drum 26, so that all of the suction fibers or dirt particles produced in this box are sucked through the hood 50 with the general air flow can be.
  • a pivotable flap 56 can be provided to control the inflow of air into the interior of the box 54. This flap can also be in the suction nozzle 52 to be ordered.
  • the area of the breeze 18 between the work roll 34 and the feed roll 12 is provided with a cover 58, and it is also noticed that a triangularly shaped cover 60 is provided in the triangular area between the breeze, the drum and the work roll is.
  • the cover 58 and the cover part 60 provide a favorable air flow around the respective rotatable elements.
  • the drum 26 is also provided with a cover 76; for example between the breeze 18 and the stationary lid 40.
  • the longitudinal dimension of the working roller 34 of the cleaning roller 44, the cover 58, the feed roller 12 and the cover part 60 are chosen to be equal to the axial length of the drum 26, the end faces of the box 54 being covered by sheets (not shown) .
  • the work roller 34 and the cleaning roller 44 each have a diameter of 120 mm
  • the drum has, as usual, a much larger diameter than the breeze, namely 1290 mm compared to 253 mm.
  • the feed roller is also, as usual, of a relatively small diameter, which in this example is 80 mm. It can be seen that the pre-resolution device is installed next to the breeze in a space-saving manner.
  • Fig. 2 is essentially identical to Fig. 1, which is why the same reference numerals are used for the same parts, only here the work roll 34 rotates in the opposite direction to the drum. However, due to the large difference in the surface speeds of the work roll 34 and the reel 36, this does not lead to any significant change in the working conditions in the area between the work roll and reel. For the same reason, the different direction of rotation does not lead to any significant differences in the cooperation between the breeze 18 and the work roller 34 or the cooperation between the cleaning roller 44 and the work roller 34. In general, the direction of rotation with the work roller 34 according to FIG. 1 is preferred, only the direction of rotation according to FIG. 2 offers a further possibility of adaptation to different types of fibers. The effect of the work roll on the quality of the yarn spun from the card sliver can be seen from the following FIGS. 3 to 5. For all investigations, a highly soiled Turkish cotton is used here, which has already been cleaned normally in the previous stages.
  • the figures show along the vertical axis the number of thin spots per 1000 m, the number of thick spots per 1000 m or the number of nits per 1000 m for the yarn spun from the card sliver.
  • the columns that follow one another from left to right are designated AT1, AAT1, BT1, BT2.1, BT1.1 and CT1.1.
  • Column AT1 shows the number of the respective fault locations for the card of FIG. 1, but without the pre-resolver device 32 and without stationary carding devices 40 on the reel.
  • This column thus forms a comparison column, from which the number of the respective fault locations per 1000 m of yarn emerges as a comparison variable.
  • the reel turns at 450 revolutions per minute and the card produces 50 kg of cotton per hour.
  • column AAT1 there is a further comparison column, in which stationary carding elements 40 are additionally used, but also without the pre-resolution according to the invention.
  • the stationary carding elements 40 have a marked reduction in the number of thin spots per 1000 m and a significant reduction in the thick spots per 1000 m cause. The number of nits has also become somewhat smaller.
  • Column BT1 then shows the effect of the predissolution device 32 according to the invention.
  • the work roll 34 is equipped with a type 804 SL from the Platt company and runs in the same direction as the drum at a relatively high speed of 3.95 m per second (Peripheral speed).
  • FIG. 6 shows a modified form of the pre-dissolving device, in which two work rollers 34.1 and 34.2, which bring about pre-dissolution, are inserted between the feed roller 12.1 and the beater 18.1. Covers 62, 64, 66, 68 are provided around the feed roller, the work rollers and around the beater in the areas where there is no cooperation with said or other parts.
  • the first work roll 34.1 runs in the opposite direction to the feed roll.
  • the second work roll 34.2 then in turn runs in the opposite direction to the first work roll and also to the beater, which in turn runs in the opposite direction to the drum.
  • the first work roller 34.1 becomes the second work roller 34.2 (from the second work roller 34.2 to the briseur 18.1, from the briseur 18.1 to the drum) 26.1) further disintegration of the fiber flakes causes what dissolves soiled starting material and leads to an improvement in the number of thin spots, thick spots and nits.
  • FIG. 7 shows a further development of the embodiment according to FIG. 6, in which suction is provided in the area of the transition from the beater to the drum.
  • This suction consists of a sheet metal box 70 which connects to the cover plate 68 at its upper end in FIG. 8 and connects to the drum cover 76 at the lower end. The end faces of the boxes are covered by end plates.
  • a connection piece 74 enables the suction box to be connected to a suction source. The suction removes and removes dirt particles and short fibers in the area of the Briseur - Drum transition, which leads to a better yarn value.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP90122913A 1989-12-04 1990-11-30 Machine de cardage Withdrawn EP0431483A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893940073 DE3940073A1 (de) 1989-12-04 1989-12-04 Karde
DE3940073 1989-12-04

Publications (1)

Publication Number Publication Date
EP0431483A1 true EP0431483A1 (fr) 1991-06-12

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ID=6394782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122913A Withdrawn EP0431483A1 (fr) 1989-12-04 1990-11-30 Machine de cardage

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EP (1) EP0431483A1 (fr)
DE (1) DE3940073A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0927779A1 (fr) * 1997-11-18 1999-07-07 FRATELLI MARZOLI & C. S.p.A. Appareil d'alimentation pour nappes de fibres dans machines de cardage à chapeaux
EP0989213B2 (fr) † 1998-09-04 2006-03-29 Maschinenfabrik Rieter Ag Machine de cardage respectivement machine de cardage dite laine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418377A1 (de) * 1994-05-26 1995-11-30 Truetzschler Gmbh & Co Kg Vorrichtung an einer Karde, insbesondere für Baumwolle, Chemiefasern u. dgl.
US5737806A (en) * 1994-05-26 1998-04-14 Trutzschler Gmbh & Co. Kg Apparatus for treating fiber and producing a fiber lap therefrom

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436049C (de) * 1926-10-23 Carlo Schleifer Vorkrempel fuer Krempel- und aehnliche Maschinen
GB791339A (en) * 1955-02-11 1958-02-26 Ling Wei Tsing Improvements relating to carding-engines
FR1255061A (fr) * 1960-01-21 1961-03-03 Perfectionnements aux briseurs des machines à carder
DE1234596B (de) * 1960-06-28 1967-02-16 Daiwa Spinning Co Ltd Krempel
GB2043725A (en) * 1979-03-07 1980-10-08 Estebanell J B Cleaner-opener-comber device for textile fibres in combing machines

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US791339A (en) * 1901-05-15 1905-05-30 Egbert H Gold Valve.
ES269393A1 (es) * 1960-08-03 1962-01-01 Toyo Boseki Una maquina de cardar
GB1230331A (fr) * 1969-03-21 1971-04-28
GB1309925A (en) * 1969-05-20 1973-03-14 Toyoda Automatic Loom Works Takerin-part of the conventional flat card
GB1332359A (en) * 1969-10-22 1973-10-03 Nitto Shoji Kk Textile combers
DE7046645U (de) * 1970-12-17 1973-12-06 Schubert & Salzer Maschinenfab Ag Vorreisserwalze fuer kardiermaschinen
DE2459781C2 (de) * 1974-12-18 1983-06-23 Hergeth KG Maschinenfabrik und Apparatebau, 4408 Dülmen Vorrichtung zur Ausscheidung von Fasernissen, Faserverklebungen, Fremdstoffpartikeln (Strips) und Kurzfasern beim Krempeln oder Kardieren von Faserstoffen
IT1122933B (it) * 1979-08-31 1986-04-30 Marzoli & C Spa Macchina per cardare
US4524492A (en) * 1982-12-23 1985-06-25 Elliott Olin S Carding apparatus and method
JPS59199820A (ja) * 1983-04-21 1984-11-13 Toyoda Autom Loom Works Ltd カ−ド機械の予備開繊装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436049C (de) * 1926-10-23 Carlo Schleifer Vorkrempel fuer Krempel- und aehnliche Maschinen
GB791339A (en) * 1955-02-11 1958-02-26 Ling Wei Tsing Improvements relating to carding-engines
FR1255061A (fr) * 1960-01-21 1961-03-03 Perfectionnements aux briseurs des machines à carder
DE1234596B (de) * 1960-06-28 1967-02-16 Daiwa Spinning Co Ltd Krempel
GB2043725A (en) * 1979-03-07 1980-10-08 Estebanell J B Cleaner-opener-comber device for textile fibres in combing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0927779A1 (fr) * 1997-11-18 1999-07-07 FRATELLI MARZOLI & C. S.p.A. Appareil d'alimentation pour nappes de fibres dans machines de cardage à chapeaux
US6061878A (en) * 1997-11-18 2000-05-16 Fratelli Marozli & C. S.P.A. Feeding device for fiber mats in flat carders
EP0989213B2 (fr) † 1998-09-04 2006-03-29 Maschinenfabrik Rieter Ag Machine de cardage respectivement machine de cardage dite laine

Also Published As

Publication number Publication date
DE3940073A1 (de) 1991-06-06

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