EP1929075B2 - Vorrichtung zum verarbeiten von fasern an der trommel einer karde - Google Patents

Vorrichtung zum verarbeiten von fasern an der trommel einer karde Download PDF

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Publication number
EP1929075B2
EP1929075B2 EP06761286.1A EP06761286A EP1929075B2 EP 1929075 B2 EP1929075 B2 EP 1929075B2 EP 06761286 A EP06761286 A EP 06761286A EP 1929075 B2 EP1929075 B2 EP 1929075B2
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EP
European Patent Office
Prior art keywords
carding
cylinder
drum
gap
zone
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Application number
EP06761286.1A
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German (de)
English (en)
French (fr)
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EP1929075A1 (de
EP1929075B1 (de
Inventor
Götz Theodor Gresser
Roland Styner
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
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1929075A1 publication Critical patent/EP1929075A1/de
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    • 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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/24—Flats or like members

Definitions

  • the present invention relates to apparatus for processing fibers on the drum of a card, in particular for the removal of impurities on the drum of a revolving flat card.
  • contaminant in this application encompasses all materials that have a significantly higher specific gravity compared to dissolved (opened) cotton fibers so that they behave differently from cotton fibers under the effect of centrifugal force, for example, trash particles, leaf debris, seed husks, stem remnants , Sand and not opened nits.
  • the card has a rotatable drum fitted with a garnish which can be divided into three carding zones: the main carding zone, the pre-carding zone and the post-carding zone.
  • the main carding zone may consist of hard covers
  • a traveling deck system is the preferred system at least for processing cotton fibers.
  • the revolving system consists of 79 to 112 covers, which are combined by a chain or a belt to form a revolving endless belt.
  • DE-C-3336323 proposes a device for eliminating impurities such as trash, shell parts u. Like. Before, wherein the device above the pickup, that is arranged in the Nachkardierzone.
  • the device has a knife blade which is formed integrally with a suction chamber.
  • DE-A-3821771 shows a method for separating waste, wherein the drum of the cotton carda sucks through its rotation at the separator air from the environment through an air gap formed by the drum, which air flows directly into a waste collector.
  • EP-B-338 802 shows a complex arrangement of covers upstream of a separation gap, leaving an air supply gap between selected covers.
  • EP-B-848 091 the applicant itself shows a fiber-processing machine with a Ausscheidkante, wherein at least one measure is taken to limit a caused by the air discharge pressure drop downstream of the edge or compensate.
  • the measure is preferably to air in the. To let space flow downstream from the edge.
  • DE-A-10207159 provides in the pre-and / or Nachkardierzone before a plurality of working elements such as Festkardieriana, suction, Ausscheidemesser ago, wherein at least two working elements, a module is formed.
  • the invention is characterized in that in the pre- and / or Nachkardierzone each have at least two modules are provided for the excretion of foreign bodies (contaminants) such as trash and / or for the excretion of Nissen.
  • two modules are provided in the Vorkardierzone, each comprising a Festkardierelement, a suction hood and a pressure element. These modules are designed to improve the excretion of foreign bodies such as trash, seed parts, leaf debris u. Like. Allow.
  • the object of the invention is to improve the effect of the entire carding zone as the sum of the individual partial zones, and thus to improve the effect of the pre-carding zone and the post-carding zone.
  • the invention provides a device for processing fibers on the drum of a Wanderdekkelkarde according to claim 1
  • an air supply is provided after the first excretion module and before the last excretion module.
  • FIG. 1 shows a revolving flat card, for example the Rieter card C60 with a working width of 1.5 m. Fiber flakes are transported through transport channels through the various Putzereirea mattern (not shown) and finally fed to the hopper 16 of the card.
  • the shaft 16 in FIG. 1 is designed as a so-called "cleaner shaft” with a cleaning module between the shaft top and the manhole base. However, this is not essential for the present invention, instead of a cleaner shaft and a normal hopper can be provided.
  • the shaft then passes the fiber flakes to the card as cotton wool, namely to a known feed device, which feeds the cotton into the card at a predetermined speed.
  • the feeder feeds the fiber flakes to a licker-in module 3, which in the illustrated embodiment has three lickerins.
  • the lickerins open the fiber flakes and remove some of the dirt particles.
  • the last licker-in roller passes the fibers to the card drum 1.
  • the card drum cooperates with the lids 7 of a revolving flat-top aggregate 2, thereby further parallelizing the fibers.
  • the covers are cleaned by a cover cleaning 14 and possibly ground with a grinding device. After the fibers have partially carried out several cycles on the card drum, they are removed by the pickup 4 of the card drum, fed to the discharge area (5) and finally deposited as a card sliver in a can in a pot (not shown).
  • the traveling lid unit 2 has, together with the drum 1, the function, the dissolution of the flakes into individual fibers, removal of impurities and dust, elimination of very short fibers, the dissolution of nits and the parallelization of the fibers.
  • the region 8 of the main carding zone can be defined with an angle ⁇ . This area extends from the point where the first lid is placed in working position to the point where the last lid leaves the working position. Viewed in the direction of rotation of the drum, the pre-carding zone is located before the main carding zone and the post-carding zone is after the main carding zone.
  • This carding nip is normally selected over almost the entire main carding zone so that the lids are set at a constant distance from the drum. However, the gap can also be opened - the carding gap is larger - or closing - the carding gap is smaller - to be set.
  • the size of the carding nip is, for example, between 0.10 to 0.30 mm for cotton or to 0.40 mm for chemical fibers in the case of a revolving flat card.
  • the carding drum has a diameter D and a working width A (not shown in FIG. 1 ), wherein the working width A is given by the axial length of the garnished surface of the drum.
  • the working width of the drum has been increased from the usual value in the range of 1 m to 1.5 m.
  • the diameter of the drum is reduced from the usual 1.3 m to about 0.814 m.
  • a card with a reduced drum diameter is preferably driven at a speed such that the peripheral speed of the drum set is equal to the peripheral speed of the drum set of a conventional card.
  • the resulting centrifugal force at the circumference of the drum of a "small" card is significantly higher. Due to the changed geometry and the corresponding changed processing parameters, the card can process more than 200 kg / h of cotton today.
  • FIG. 2 now shows a schematic opposite to the FIG. 1 modified arrangement according to the present invention.
  • the guide plate 20 and the suction hood 22 also functional, compared to the FIG. 1 have remained unchanged, they are indicated in both figures with the same reference numerals.
  • This element is mainly used to catch the dirt particles that have been released by the revolving lids.
  • dirt particles from the environment of the drum 1 can be additionally dissipated, this function of the suction hood is of no great importance and the suction hood 22 is therefore not counted among the separation modules.
  • the separation modules 30 and 32, the carding segment 34 and the guide element 36 each form a structural unit which are attached at their ends to a respective arc 40 (only one arc 40 in the FIG. 2 visible).
  • the bows 40 are fastened in the carding frame (not shown) by means of bolts (not shown) which cooperate with receptacles 42 on the respective bows. Since the general structure of module 30 is substantially the same as the general structure of module 32, only module 30 will be described below. The description also applies to the module 32.
  • the element 70 is a carding strip.
  • the structuring of the surface 71 is thus given by the teeth of the carding strip 70.
  • the function of this element in the separation module can be explained relatively easily on the basis of the known structure of a carding strip. Subsequently, alternative structures for the surface 71 will be discussed.
  • the FIG. 4 shows schematically (in principle) the flow conditions in the carding nip K between the carding strip 70 and the drum set with lateral surface 1A.
  • the FIG. 4 also shows examples of setting parameters that can be used for a carding machine with a drum diameter of 814 mm, especially when choosing a conventional carding strip with a width B of the clothing strip of 30 mm.
  • the operating direction of rotation of the drum is indicated by a curved arrow.
  • the carding position of the clothing teeth of the carding strip is indicated schematically in that the tip of each tooth is directed against the drum rotation direction.
  • the Gamitur tip of the strip form a lateral surface lying in a plane 74, and the central longitudinal axis of this lateral surface in a circle 75, which is concentric with the drum 1, one can, for example, a gap width of 0.35 mm in between adjust this longitudinal axis and the lateral surface of the drum set.
  • the flakes have been largely dissolved, with the covers 7 being unable to pick up any trash particles and impurities and remove them from the card. By dissolving the flakes impurities ("particles”) were released.
  • the structuring of the surface 71 should be chosen such that it tends to allow the particles to "bleed" (with relatively high specific gravity) and make it difficult to fiber out. It can only be spoken of tendencies, because the exact selectivity is not possible. Some of the fairies will still be associated with the good fibers to remain in the drum set while some fibers will penetrate the set of the strip 70 with the particles, with the shorter (less valuable) fibers being able to with the particles to fly outside. It will therefore be clear that a strip of teeth could be used "inverted” with respect to the carding position and nevertheless function similarly in terms of precipitation selectivity. Under these circumstances, however, the strip would not contribute to the degree of resolution or parallelization of the processed fibers. If no further resolution (eg of neps) or parallelization is necessary in the module 30, a non-carding, structured area 71 can be used. Suggestions for such areas are in EP-A-388 791 listed.
  • the carding element 70 comprises a support rod 80 with a dovetail-shaped receptacle for fittings 82.
  • the rod 80 viewed in its longitudinal direction, extends over the entire working width of the drum and is over its entire length provided with spacers 84, 86, wherein the two middle spacers 86 are hook-shaped and together form a receptacle for a mounting rail 88.
  • the rail 88 has distributed over its length openings 90, which are each provided with a thread. After insertion of the rod 88 into the receptacle, the apertures 90 face the apertures 92 provided in the foot portion 72. Through each opening 92, a respective bolt 94 can be guided to cooperate with the thread of the corresponding opening 90.
  • the guide surface 76 forms a curved surface which is arranged approximately concentrically with the drum 1.
  • This baffle has, in particular, an effect on the air flow in the carding nip, after a part of the air quantity has been peeled off from the separating gap 62 on the blade 64 upstream and in the cavity 58 (FIG. Fig. 3 ) was discharged.
  • an increased distance between the guide surface 76 and the lateral surface 1A is preferably provided.
  • the distance between the guide surface 76 and lateral surface 1A should not be much larger than the distance y.
  • the attachment of the guide element on the foot part 66 thus preferably results in a small enlargement x of the carding gap downstream of the blade 64, for example in the range 0.15 to 0.25 mm.
  • the good fibers passing the knife blades of modules 30 and 32 have therefore twice been subjected to the turbulent flows near these blades.
  • the baffles 68 of the modules are not designed to process the fibers to restore order to the batt on the drum surface, but rather to re-control the restless air currents.
  • the structured area 71 (FIG. Fig. 3 ) is formed by a carding strip, it must be expected that the fibers lose their order again during the excretion partially. Any loss of fiber order in the nonwoven to be processed results in an increase in the number of nits in the final product, especially when processing longer, finer (ie, more valuable) fibers.
  • the guide member 36 contributes nothing to the processing of the fibers, but is designed to initiate the fiber / air flow clean in the gusset between the drum 1 and the pickup 4, if possible without disturbing the previously achieved order of fibers.
  • the casing seal between modules 30 and 32 is removed so that the space between these modules as the air supply channel 80 (FIG. Fig. 2 ):
  • the air introduced via the duct is preferably evenly distributed over the working width.
  • the amount of air that is introduced into the carding nip via this channel depends on the prevailing pressure conditions in the carding nip and is therefore largely "self-adjusting". As more air is peeled off by the blade in the module 30, the pressure in the subsequent section of the carding nip drops and it introduces more "false” air through the channel 80 into the carding nip. However, much of this newly introduced air is immediately peeled off again in module 32, helping to maintain stable flow conditions in this module.
  • the benefits of the invention are not necessarily to be seen in maximizing the amount of waste but in improving (maximizing) the selectivity. This makes it possible to optimally use the limited space in the Nachkardierzone, especially when using a drum with reduced diameter. However, it is important to realize that even with the use of a conventional drum of larger diameter, the precipitation of impurities at the expense of the fiber order is performed, and therefore measures must be taken to restore the required fiber order before the forwarded from the drum fleece for Customer arrives.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP06761286.1A 2005-09-26 2006-08-16 Vorrichtung zum verarbeiten von fasern an der trommel einer karde Active EP1929075B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH15652005 2005-09-26
PCT/CH2006/000435 WO2007033504A1 (de) 2005-09-26 2006-08-16 Vorrichtung zum verarbeiten von fasern an der trommel einer karde

Publications (3)

Publication Number Publication Date
EP1929075A1 EP1929075A1 (de) 2008-06-11
EP1929075B1 EP1929075B1 (de) 2010-01-20
EP1929075B2 true EP1929075B2 (de) 2016-01-20

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ID=37084653

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EP06761286.1A Active EP1929075B2 (de) 2005-09-26 2006-08-16 Vorrichtung zum verarbeiten von fasern an der trommel einer karde

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EP (1) EP1929075B2 (zh)
CN (1) CN101273160B (zh)
DE (1) DE502006005994D1 (zh)
WO (1) WO2007033504A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009009333A1 (de) 2009-02-17 2010-08-19 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl. zum Einstellen eines Arbeitsspaltes
DE102009009331A1 (de) 2009-02-17 2010-08-19 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl. zum Einstellen eines Arbeitsspaltes
DE102009042367A1 (de) * 2009-09-23 2011-03-24 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde oder Krempel, bei der mindestens ein Festkardierelement vorhanden ist
DE102010022479A1 (de) * 2010-06-02 2011-12-08 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde ode Krempel mit einer garnierten Trommel und einem benachbarten garnierten Vorreißer
CN102899745B (zh) * 2012-09-11 2015-03-18 盐城金大纺织机械制造有限公司 梳棉机的节能清洁装置
CN106835384B (zh) * 2017-03-28 2022-06-10 金陵科技学院 一种绢纺生产用流水化设备
CH715975A2 (de) * 2019-03-19 2020-09-30 Rieter Ag Maschf Karde mit Ausscheideelementen.
CN110273242B (zh) * 2019-08-01 2024-01-30 海宁纺织机械有限公司 一种直径可调的锡林
DE102022106376A1 (de) * 2022-03-18 2023-09-21 Trützschler Group SE Karde und Verfahren zum Betrieb einer Karde
CN114836852A (zh) * 2022-05-20 2022-08-02 山东联润新材料科技有限公司 一种具有打开和排杂功能的梳理机后固定盖板

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129924A (en) * 1974-12-18 1978-12-19 Hergeth Kg Maschinenfabrik Und Apparatebau Apparatus for separating card strips during carding of fibrous materials
DE3336323C2 (de) * 1983-10-06 1985-12-12 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum Ausscheiden von Verunreinigungen, wie Trash, Schalenteile u. dgl. für eine Karde oder Krempel
CN1022337C (zh) * 1989-03-23 1993-10-06 里特机械公司 纤维网除尘器
EP0848091B1 (de) * 1996-10-18 2001-11-07 Maschinenfabrik Rieter Ag Schmutzausscheidungsvorrichtungen
EP1080259B1 (de) * 1998-05-26 2003-11-12 Maschinenfabrik Rieter Ag Schmutzabfuhr
DE10207159B4 (de) * 2002-02-20 2015-12-17 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde, bei der einer Walze, z. B. Trommel, eine Mehrzahl von Arbeitselementen zugeordnet ist

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"PROSPEKT TRÜTZSCHLER", October 2003, article "BAND TECHNOLOGIE" †

Also Published As

Publication number Publication date
WO2007033504A1 (de) 2007-03-29
EP1929075A1 (de) 2008-06-11
EP1929075B1 (de) 2010-01-20
DE502006005994D1 (de) 2010-03-11
CN101273160B (zh) 2011-08-24
CN101273160A (zh) 2008-09-24

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