WO1990011392A1 - Dispositif permettant d'enlever les impuretes dans un materiau composite sur une machine a carder - Google Patents

Dispositif permettant d'enlever les impuretes dans un materiau composite sur une machine a carder Download PDF

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Publication number
WO1990011392A1
WO1990011392A1 PCT/EP1990/000436 EP9000436W WO9011392A1 WO 1990011392 A1 WO1990011392 A1 WO 1990011392A1 EP 9000436 W EP9000436 W EP 9000436W WO 9011392 A1 WO9011392 A1 WO 9011392A1
Authority
WO
WIPO (PCT)
Prior art keywords
carding
hold
drum
down plate
knife blade
Prior art date
Application number
PCT/EP1990/000436
Other languages
German (de)
English (en)
Inventor
Walter Löffler
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=6376612&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990011392(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 WO1990011392A1 publication Critical patent/WO1990011392A1/fr

Links

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
    • D01G15/34—Grids; Dirt knives; Angle blades
    • 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
    • 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

Definitions

  • the present invention relates to a device for separating impurities from a fiber structure on a card according to the preamble of claim 1.
  • a carding machine usually has a drum with a larger diameter, sometimes also referred to as a spool, on which a drum with a smaller diameter for feeding fiber material, the so-called licker-in, is arranged. Another drum with a smaller diameter, the so-called customer, is intended to remove the nonwoven fabric formed on the carding drum.
  • a drum with a larger diameter sometimes also referred to as a spool
  • Another drum with a smaller diameter is intended to remove the nonwoven fabric formed on the carding drum.
  • fixed carding covers and / or revolving covers are arranged on the circumference of the carding drum, which work on the fibers in cooperation with the carding drum.
  • the fiber raw material fed to the card has a large number of impurities such as trash, shell parts, shell nits, that is shell residues with adhering fibers, etc., which should be removed as far as possible in order to produce a high-quality non-woven fabric.
  • a device for separating impurities from a card according to the preamble of claim 1 has become known from DE-OS 36 44 529.
  • the known device has a hold-down plate which is arranged after the licker-in, followed by a knife at a circumferential distance. The one between the knife and the one Holding plate formed gap is partially spanned by a suction device. After this first knife, several fixed carding elements and then a second hold-down plate are arranged. A further knife is provided at a distance from this hold-down plate. A second suction device spans this second gap formed between the hold-down plate and the knife. The gaps formed between the hold-down plates and the knives cannot be adjusted.
  • Another problem relates to the air flow within the device, which is of great importance for an optimal cleaning effect.
  • the carding drum rotates at high speed, which leads to the creation of an air flow in the gaps between the cover plates, the knives and the carding elements.
  • Another cleaning device for a card is known from DE-OS 28 33 413.
  • This known device has several carding plates, which are arranged so that between the adjacent Carding plates each have a gap, the direction of which runs parallel to the dumbbell line of the carding drum.
  • a suction device is provided which has a cover spanning the carding plates, through which contaminants can be suctioned off. With this device, however, it can be problematic to remove the coarse impurities sufficiently from the fiber material. The removal of fine impurities is also not optimal.
  • the present invention has for its object to provide a device for separating contaminants from a card, which enables both improved coarse separation and improved fine separation of contaminants and which can be made compact and inexpensive.
  • two or more knife blades are provided, each of which is attached to a carding element immediately following it.
  • a hold-down device is provided in front of each knife blade and holds the fiber material down at a predetermined distance from the surface of the carding drum.
  • a gap is provided between the knife blade and the associated holding plate through which the impurities are discharged.
  • the first knife blade is located directly behind the licker-in. In this area, the coarse impurities, such as. B. shells, etc. can be easily removed, because at this point they are still easy to loosen from the not yet carded fiber structure and due to their higher specific weight due to the centrifugal force they are carried out more and therefore can be easily separated from the fibers by the knife blade.
  • the fibers are subjected to a first carding after the rough separation has taken place.
  • This carding releases fine impurities which also come out behind the following hold-down plate due to the centrifugal force.
  • the subsequent second knife then separates these finer impurities from the fibers.
  • the second knife is in turn attached to a second carding element, which can be followed by further hold-down plates, knives and carding elements connected thereto.
  • the units are spanned by a suction housing, in which the material separated by the centrifugal force on the knives is collected and removed with a low vacuum.
  • the negative pressure prevailing in the suction housing or the suction housings can be relatively low; it is not intended to suck the impurities out of the fiber structure, but merely to remove the impurities which pass through the gap due to the centrifugal force.
  • this problem is solved in that both the distance between the hold-down plates and the surface of the carding drum and the distance between the knife blades and the drum surface can be adjusted, each element being able to be set individually.
  • the coarse and fine waste can be optimally coordinated.
  • the knife blade or the hold-down plate can be adjusted along a bevelled support surface in such a way that, when the distance between the hold-down plate and the drum surface, or the knife blade and the drum surface, is reduced, the gap between the hold-down plate and the associated knife blade decreased. This ensures that with a reduction in the distance, the at the same speed Carding drum usually causes an increase in air flow, the discharge area is reduced. An increased discharge of good fibers can thereby be effectively prevented.
  • the hold-down plates which are assigned to the second and each further structural unit are each fastened to the preceding structural unit. This measure further improves the already compact design of the device due to the design of the structural units.
  • Figure 1 is a schematic sectional view through a card on which he device according to the invention is arranged.
  • Fig. 2 is an enlarged schematic sectional view of the embodiment of the inventive device according to FIG. 1, and
  • Fig. 3 in a view similar to Fig. 2 from another exemplary embodiment of the device according to the invention.
  • FIG. 1 shows a section through a card on which an embodiment of the cleaning device according to the invention is arranged.
  • the card has a carding drum or reel 1 on which the licker-in 2 is arranged.
  • the licker 2 is preceded by a feed device 3, via which the -? -
  • a pickup 4 is provided on the side of the drum 1 opposite the licker-in 2, via which the processed fiber material is discharged. Between the licker-in 2 and the taker 4 there is a revolving cover 5 of known design.
  • the device according to the invention can of course also be used with cards which have other arrangements of fixed lids and revolving lids.
  • a drum cover 10 is provided, which in the exemplary embodiment has a distance a of approximately 1 mm from the surface of the carding drum.
  • This drum cover 10 is adjoined, without a gap, by an angle bracket 11, which has a smaller angle leg 11a, which is designed concentrically to the carding drum, and a longer angle leg 11b, which extends away from the surface of the carding drum.
  • the shorter angle leg 11a and the longer angle leg 11b are not necessarily perpendicular to one another. Rather, it is preferable that the angle legs form an angle of less than 90 °, as will be explained in detail later.
  • the hold-down plate 12 consists of a first surface 13 which rests on the long angle leg 11b of the angle bracket, a second surface 14 which is angled to the surface 13 and which is tangential to the - 2-
  • the first hold-down plate 12 is adjustably attached to the angle bracket.
  • This adjustability can, for. B. can be achieved in that in the first surface 13 of the plate (not shown) longitudinal slots are provided, are guided through the corresponding fastening screws that connect the hold-down plate with the angle bracket.
  • the distance b between the second surface 14 and the surface of the carding drum can then be changed as desired by moving the hold-down plate along the longitudinal slots. Since the long leg 11b of the angle 11 is inclined at an acute angle to the tangential plane of the carding drum, the gap to the subsequent knife is also reduced when the distance between the holding-down plate and the surface of the carding drum is reduced.
  • the distance b between the hold-down plate and the surface of the carding drum 1 is generally in the range of about 1 mm.
  • the first hold-down plate seen in the direction of rotation of the carding drum 1, is followed by the knife blade 20 which is fastened to the carding element 21.
  • the carding element 21 has on its side facing the drum a conventional card set 22, which corresponds to the carding mechanism 23, which is arranged on the carding drum 1 itself and, in the illustration according to FIG. 2, is only indicated in part.
  • the distance c between this carding element and the surface of the carding drum is of the order of 0.4 mm.
  • the knife 20 is fastened to the carding element 21 in such a way that the distance between the knife edge 25 and the surface of the carding drum 1 can also be changed.
  • a gap d is formed between the hold-down plate 12 and the knife edge 25, which is approximately 6 mm if the distance e between the knife edge 25 and the surface of the carding drum is of the order of 0.25 mm.
  • the knife edge and the carding element form a compact structural unit 29, which makes separate attachment of the knife blade superfluous.
  • a further hold-down plate 30 is arranged on the, seen in circumferential direction of the drum, the back of the carding element 21, a further hold-down plate 30 is arranged.
  • This hold-down plate 30 is designed in exactly the same way as the hold-down plate 12, so that its structure need not be explained further. It should be noted, however, that by fastening the hold-down plate 30 to the carding element 21 an overall very compact structure of the device is achieved.
  • the hold-down device 30 is also adjustable in its distance f from the surface of the carding drum 1.
  • the distance f between the second hold-down plate 30 and the carding drum is kept smaller than the distance between the hold-down plate 13 and the carding drum.
  • the distance f is advantageously on the order of 0.55 mm.
  • the second hold-down plate 30 is followed by a second one Ka rdierelement 35, on the front side of a second knife blade 34 is adjustably attached.
  • the structure of the carding element 35 and the knife blade 34 are corresponding to the structure of the carding element 21 and the knife blade 20.
  • the second carding element and the second knife blade 34 thus form a second structural unit 39 which is essentially identical to the first structural unit 29.
  • the knife blade is arranged here so that there is a distance g between the knife blade and the hold-down plate which is of the order of 6 mm when the second hold-down plate 30 is at a distance of 0.55 mm from the surface the carding drum is located.
  • the distance h between the knife blade 34 and the drum surface is also approximately 0.25 mm.
  • the cover of a housing 40 which spans both structural units and both discharge gaps, is fastened to the second carding element 35.
  • the opposite edge 41 of the housing cover 40 is embedded in a recess 42 in the angle bracket 11. The contaminants are removed from the housing 40 with a slight underpressure via the suction pipe 45.
  • the carding drum 1 rotates at a predetermined speed and 3 fiber material is fed onto the licker-in 2 via the feeder 3.
  • the supplied fiber material is picked up by the carding drum 1 by means of the carding set 23 and moved around the carding drum in the circumferential direction. A spinning of the good fibers is prevented by the drum cover 10.
  • the first gap d is formed, which is delimited by the holding plate 12 and the first knife 20.
  • the knife edge has a distance c of approximately 0.25 mm and thus presses deep into the fiber material.
  • This first knife blade is then followed by the first carding element, in which the fibers are carded for the first time. This first carding removes the remaining impurities.
  • the following hold-down plate has a distance f of approximately 0.5 mm from the surface of the carding drum.
  • the gap g formed between the hold-down plate and the second knife 34 is approximately as wide as the first gap d.
  • the knife blade is also pressed into the fiber material.
  • the device according to the invention as described above, a combination of a coarse separation in the first gap and a fine separation in the second and possibly subsequent columns takes place.
  • the rough separation is carried out with a gap width that is so small that only a small amount of good material is removed with the coarse impurities.
  • the gap width is kept so that the fine impurities can be reliably removed to the outside.
  • the construction of the device is kept very simple due to the largely identical structural units and the common suction housing.
  • FIG. 3 shows a further exemplary embodiment.
  • the structure and mode of operation of the device shown in FIG. 3 are in principle the same as explained above.
  • the same reference numerals are therefore used for identical and similar components. Only the differences are discussed below.
  • the suction device here comprises two suction housings 40 'and 40 ", the suction housing 40' being assigned to the structural unit 29 and the suction housing 40" to the structural unit 39.
  • the first suction housing 40 * is formed by a cover 46 fastened on the upper side of the angle piece 11 and on the upper side of the first carding element 21.
  • the cover 46 closes tightly with the upper side of the angle 11 and the upper side of the carding element 21.
  • the second suction housing 40 is formed by the first carding element 21 and the second carding element 35, which are covered by a second cover 46". 3, the two lids 46 1 and 46 "overlap in the region of the first carding element 21.
  • the carding elements 21 and 35 each have the fastening elements for the lids 46 'and 46" at the same point, so that it is possible due to the overlap of the two lids 46 1 and 46 "to fasten both lids to the carding elements with common screws 47 or the like. If additional structural units (not shown here) are attached, the creation of a further suction housing is easily possible by another lid connects the second carding element 35 with the following carding element in the manner previously described.
  • both suction housings 40 'and 40 each have their own suction pipe 45' and 45", both of which can be connected to a common vacuum blower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

On munit une machine à carder, ayant un tambour rotatif (1) ainsi q'un briseur (2) qui alimente ledit tambour en fibres, d'un dispositif permettant d'enlever les impuretés dans un matériau composite. Ledit dispositif présente une première lame de couteau (20), placée entre le briseur et un élément de cardage (21), une seconde lame de couteau (34), montée derrière ledit élément de cardage (21) et des plaques de pression (14) se trouvant devant la lame de couteau. La première lame de couteau forme avec l'élément de cardage (21) qui la suit une première unité de structure (29) qui est montée juste derrière le briseur, tandis que la seconde lame de couteau ainsi que toutes les lames suivantes (34) forme(nt) également avec un élément de cardage suivant (35) une deuxième unité de structure. Toutes les unités de structure sont recouvertes par un seul et même logement d'aspiration commun (40).
PCT/EP1990/000436 1989-03-17 1990-03-16 Dispositif permettant d'enlever les impuretes dans un materiau composite sur une machine a carder WO1990011392A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3908834.0 1989-03-17
DE19893908834 DE3908834A1 (de) 1989-03-17 1989-03-17 Vorrichtung zur ausscheidung von verunreinigungen eines faserverbandes an einer karde

Publications (1)

Publication Number Publication Date
WO1990011392A1 true WO1990011392A1 (fr) 1990-10-04

Family

ID=6376612

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000436 WO1990011392A1 (fr) 1989-03-17 1990-03-16 Dispositif permettant d'enlever les impuretes dans un materiau composite sur une machine a carder

Country Status (7)

Country Link
EP (2) EP0387908B1 (fr)
JP (1) JP2798810B2 (fr)
CZ (1) CZ278720B6 (fr)
DE (2) DE3908834A1 (fr)
ES (1) ES2039977T3 (fr)
GR (1) GR3007220T3 (fr)
WO (1) WO1990011392A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530994A (en) * 1994-06-28 1996-07-02 Hollingsworth Gmbh Dust and trash removal system for carding machines
GB2379938A (en) * 2001-09-08 2003-03-26 Truetzschler Gmbh & Co Kg Separating impurities from a fibre-carding roller
US6647595B2 (en) 2001-07-05 2003-11-18 TRüTZSCHLER GMBH & CO. KG Device on a cleaner, a carding machine or the like for cleaning and opening textile material
CN1327054C (zh) * 2002-02-20 2007-07-18 特鲁菲舍尔股份有限公司及两合公司 装在梳理机上的装置

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999061688A1 (fr) 1998-05-26 1999-12-02 Maschinenfabrik Rieter Ag Dispositif d'enlevement de salissures
DE19852562C1 (de) * 1998-11-13 2000-03-30 Hollingsworth Gmbh Schmutzausscheider
DE10163178B4 (de) * 2001-12-21 2018-10-11 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, zur Entfernung von Fremdkörpern wie Trash u. dgl.
GB2385606B (en) * 2002-02-20 2005-11-09 Truetzschler Gmbh & Co Kg Apparatus on a carding machine
WO2007033503A1 (fr) * 2005-09-26 2007-03-29 Maschinenfabrik Rieter Ag Dispositif pour traiter des fibres sur le tambour d'une carde
WO2007100083A1 (fr) 2006-03-03 2007-09-07 Tokyo University Of Science anticorps modifie a bioactivite accrue
CN102089468B (zh) * 2008-07-11 2013-01-30 里特机械公司 纤维加工机器上的工作元件
CN110983506A (zh) * 2019-12-30 2020-04-10 苏州九一高科无纺设备有限公司 梳理机的梳理单元罩壳
DE102022114963A1 (de) * 2022-06-14 2023-12-14 Trützschler Group SE Vorrichtung zum Ausscheiden von Verunreinigungen an einer garnierten Walze

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743187A1 (de) * 1976-09-27 1978-03-30 Gunter & Cooke Inc Verfahren und vorrichtung zum krempeln von rohfasern
GB2003202A (en) * 1977-08-09 1979-03-07 Platt Saco Lowell Ltd Trash removal in carding machines
FR2422744A1 (fr) * 1978-04-11 1979-11-09 Estebanell Juan B Dispositif ouvreur nettoyeur cardeur perfectionne
US4309796A (en) * 1979-07-02 1982-01-12 John D. Hollingsworth On Wheels, Inc. Carding trash removing apparatus and method
GB2083848A (en) * 1980-09-10 1982-03-31 Hollingsworth Gmbh Dirt knives
DE3336323A1 (de) * 1983-10-06 1985-05-02 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum ausscheiden von verunreinigungen, wie trash, schalenteile u. dgl. fuer eine karde oder krempel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743187A1 (de) * 1976-09-27 1978-03-30 Gunter & Cooke Inc Verfahren und vorrichtung zum krempeln von rohfasern
GB2003202A (en) * 1977-08-09 1979-03-07 Platt Saco Lowell Ltd Trash removal in carding machines
FR2422744A1 (fr) * 1978-04-11 1979-11-09 Estebanell Juan B Dispositif ouvreur nettoyeur cardeur perfectionne
US4309796A (en) * 1979-07-02 1982-01-12 John D. Hollingsworth On Wheels, Inc. Carding trash removing apparatus and method
GB2083848A (en) * 1980-09-10 1982-03-31 Hollingsworth Gmbh Dirt knives
DE3336323A1 (de) * 1983-10-06 1985-05-02 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum ausscheiden von verunreinigungen, wie trash, schalenteile u. dgl. fuer eine karde oder krempel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530994A (en) * 1994-06-28 1996-07-02 Hollingsworth Gmbh Dust and trash removal system for carding machines
US6647595B2 (en) 2001-07-05 2003-11-18 TRüTZSCHLER GMBH & CO. KG Device on a cleaner, a carding machine or the like for cleaning and opening textile material
GB2377713B (en) * 2001-07-05 2005-03-16 Truetzschler Gmbh & Co Kg Apparatus on a textile machine for separating unwanted material
CN1327057C (zh) * 2001-07-05 2007-07-18 特鲁菲舍尔股份有限公司及两合公司 在清纱器或梳理机上用来清理和开松纺织材料的装置
GB2379938A (en) * 2001-09-08 2003-03-26 Truetzschler Gmbh & Co Kg Separating impurities from a fibre-carding roller
US6668425B2 (en) 2001-09-08 2003-12-30 TRüTZSCHLER GMBH & CO. KG Device on a carding machine for cleaning and opening fiber material
GB2379938B (en) * 2001-09-08 2005-05-25 Truetzschler Gmbh & Co Kg Cleaning and opening fibre material at a fibre processing machine
CN1327054C (zh) * 2002-02-20 2007-07-18 特鲁菲舍尔股份有限公司及两合公司 装在梳理机上的装置

Also Published As

Publication number Publication date
GR3007220T3 (fr) 1993-07-30
JP2798810B2 (ja) 1998-09-17
EP0387908B1 (fr) 1993-03-03
EP0387908A1 (fr) 1990-09-19
DE59000945D1 (de) 1993-04-08
JPH04504147A (ja) 1992-07-23
CZ278720B6 (en) 1994-05-18
DE3908834A1 (de) 1990-09-20
ES2039977T3 (es) 1993-10-01
EP0463031A1 (fr) 1992-01-02

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