EP2251466A2 - Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres - Google Patents

Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres Download PDF

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Publication number
EP2251466A2
EP2251466A2 EP10175496A EP10175496A EP2251466A2 EP 2251466 A2 EP2251466 A2 EP 2251466A2 EP 10175496 A EP10175496 A EP 10175496A EP 10175496 A EP10175496 A EP 10175496A EP 2251466 A2 EP2251466 A2 EP 2251466A2
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EP
European Patent Office
Prior art keywords
fiber
fibers
shaft
roller
speed
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Withdrawn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
EP10175496A
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German (de)
English (en)
Other versions
EP2251466A3 (fr
Inventor
Siegfried Bernhardt
Robert Kamprath
Heinz-Werner Naumann-Burghardt
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.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
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.)
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Publication date
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Application filed by Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Publication of EP2251466A2 publication Critical patent/EP2251466A2/fr
Publication of EP2251466A3 publication Critical patent/EP2251466A3/fr
Withdrawn legal-status Critical Current

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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
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions

Definitions

  • the invention relates to a feeding device for fiber flakes or dissolved fibers for feeding a textile machine, in particular a carding machine, wherein the fibers or fiber flakes can be fed from a pneumatic fiber transport device, with an upper fiber shaft, which feeds the fibers or fiber flakes rolls for dissolving the fibers, and a lower fiber chute, which receives the released from the rollers fibers and outputs a fiber flake mat on discharge rollers at the lower end of the lower fiber slot.
  • the fiber flake mat fed to the following textile machine should have a high degree of uniformity both in the longitudinal and in the transverse direction.
  • a fundamental problem with such devices is that they also distribute the fibers separated from the transport air stream in an upper shaft section with a uniform density across the width of the shaft in the longitudinal direction.
  • the invention has for its object to provide a feed device and a method for supplying fibers or fiber flakes of the type mentioned, in which the weight fluctuations of the output Faserflockenmatte be kept low and in particular short-wave fluctuations are compensated.
  • the invention advantageously provides that at the lower end of the lower fiber shaft, the fiber flake mat is transferred to an evacuated screen belt.
  • the invention makes it possible to compensate for short-wave changes in the fiber density in the fiber flake mat and to achieve a high homogenization of the fiber flake mat in the longitudinal direction and in the transverse direction.
  • the fiber flake mat compacted in the upper fiber shaft is redissolved and dropped into the lower fiber shaft, with preferably a peripherally guided air flow assisting the detachment of the fibers from the high-speed roller.
  • the high-speed roller rotates in the opposite direction to the first two rollers for combing coarse or long fibers and that the high-speed roller for combing short fibers rotates in the same direction to the first two rollers.
  • the high-speed roller can thus be operated differently for different fibers in an advantageous manner.
  • On both sides of the high-speed roller can be passed tangentially past the high-speed roller in the transverse direction of the shaft over the width of the shaft extending air ducts, depending on the direction of rotation of the high-speed roller one or the other duct section can be shut off.
  • the high-speed roller is thus supplied at the separation point of the fibers, an air flow to facilitate the detachment of the fibers from the high-speed roller.
  • a fiber guide plate is arranged below the high-speed roller, which switches the air flow of the air flow according to the direction of rotation of the high-speed roller in a direction coinciding with the direction of rotation of the high-speed roller along.
  • the high speed roller may be a pin roller or garnished roller.
  • the lower fiber shaft can have shaft walls which are provided with a vibrator for compacting the fibers or fiber flakes.
  • a vibrating device can also be arranged in the pivoting recess.
  • the air stream supplied to the high-speed roller may consist of transport air separated in the upper fiber shaft.
  • the air flow may be formed from supplied compressed air.
  • the shaft walls of the lower fiber shaft can be permeable.
  • the peripheral speed of the high-speed roller is at least about 600 m / min, preferably 800 to 1200 m / min.
  • Fig. 1 shows a feed device 1 for fiber flakes or dissolved fibers for feeding a subsequent textile machine, in particular a carding or a subsequent solidification device (mechanical or thermal).
  • the fiber flakes are supplied via a pneumatic fiber transport device 2 to a first upper vertical fiber chute 4 by the transport air 38 is separated from the fibers, for example with comb-like shaft wall elements, so that the fiber flakes in the upper Fiber chute 4 collect and can condense to the lower end of the upper fiber shaft 4.
  • the fiber flakes are fed to several rollers 6, 8, 10 for dissolving the fiber flakes and then collected in a lower fiber shaft 12.
  • Discharge rollers 14 issue at the lower end of the lower fiber shaft 12 a mat-shaped fiber flake mat 54.
  • the fiber flake mat 54 is deposited on an evacuated screen belt 50.
  • the separated transport air 38 may be partially blown off or at least partially used as an air stream 40, 42 to assist in stripping the fibers from the roll 10 delivering the fibers to the lower fiber chute 12.
  • Fig. 1 are a total of three rollers 6, 8, 10 shown. It is understood that an arrangement of only two rollers 6, 10 may be provided, in which the high-speed roller 10 cooperates directly with the first roller 6.
  • the first roller 6, which receives the fiber flakes from the lower end 5 of the upper fiber shaft 4, may be divided into a plurality of roller segments 30, 32, 34, in particular from Fig. 7 is apparent.
  • the segmented roller 6 cooperates with a segmented recessed trough 18 with preferably equal pitch of the segments.
  • the pitch of the segments can be refined towards the edge, ie the length of the segments is less towards the edge of the fiber mat.
  • a maximum torque can be preset, which is variably controllable, for example, as a function of a determined downstream of the high-speed roller 10 density distribution in the longitudinal and transverse directions.
  • the variably controllable torque of the individual roller segments 30, 32, 34 thus makes it possible in particular to compensate for short-wave fluctuations in the transverse and longitudinal directions, specifically by controlling the amount of fiber supplied already at the end of the upper fiber shaft 4.
  • the gap width between the intake trough segments 22, 24 and the respective roller segment 30, 32, 34 is preferably statically adjustable in segments.
  • a first crush zone is formed, which also supports the homogenization of the fibers in the longitudinal and transverse directions. Behind this compression zone, the fiber flake mat formed by the first roller 6 is transferred to a second roller 8 provided with a clothing, which rotates in the same direction at the same or lower circumferential speed than the peripheral speed of the first roller 6. At such a peripheral speed, the compression effect increases.
  • the second roller 8 is provided with a cover which is like Fig. 1 Obviously, a decreasing gap width in the direction of rotation of the second roller 8 is generated. As a result, an upsetting zone is again formed, at the end of which the fiber flake mat is transferred to the high-speed third roller 10. This results in a renewed dissolution of the fibers and a centrifuging of the fibers in the lower fiber slot 12 and in a slot located in the air stream 42, which is preferably branched off from the transport air stream 38.
  • the air stream 42 is passed tangentially past the high-speed roll 10 to assist in stripping the fibers.
  • the lower shaft walls of the lower fiber shaft 12 are made permeable. They have, for example, comb-like devices 60 in order to blow off unneeded portions of the air stream 42.
  • a part of the lower fiber shaft 12 is shut down with a swivel trough 44.
  • FIG. 1 shows the position of the preferably wedge-shaped pivoting trough 44 at different rotational direction of the high-speed roller 10th
  • the air stream 40, 42 may additionally consist of conditioned air, in particular compressed air.
  • the dropped from the high-speed roller 10 in the lower fiber slot 12 fibers accumulate in the lower part of the lower fiber slot 12 and are stored by the discharge rollers 14 on a vacuumed screen belt 50.
  • Deflection rollers 58 guide the endlessly circulating screen belt 50.
  • One of the deflection rollers 58 and a support roller 62 are arranged opposite the discharge rollers 14, wherein a gap for the extracted air flow over the width of the lower fiber shaft 12 remains between the deflection roller 58 and the support roller 62.
  • a fan 56 generates the required air intake flow. Possibly. can be dispensed with the air outlet means 60 on the shaft walls, when the amount of air supplied in the air flow 40 or 42 corresponds to the amount of air sucked by the fan 56.
  • the suction hopper leading to the fan 56 which is arranged below the screen belt 50, makes the intake flow uniform across the width of the feed device 1. Sucking makes possible a significantly better transition of the air humidity from the conditioned air to the fiber flake mat 54.
  • a mat-shaped fiber flake mat 54 is stored, which can be fed to the subsequent machine via the wire belt 50 or another transport system.
  • the third high-speed roller 10 rotates in the same direction as the two first rollers 6 and 8. In this position, short fibers can be processed.
  • the speed of the high-speed roller 10 is about 600 m / min, preferably about 800 to 1200 m / min, e.g. 1000 m / min, while the second roller 8 has a speed of 10 to 30 m / min, preferably about 20 m / min.
  • the width of a roller segment 30, 32, 34 or the intake trough segments 20, 22, 24 is preferably about 250 mm. It will be appreciated, however, that the individual segments also have other widths, e.g. between 150 and 400 mm, and that the individual segments can also have a different width.
  • Fig. 2 showed a mode for long-staple fibers or for fibers that should not be opened too much.
  • the direction of rotation of the high-speed roller 10 is opposite to the first two rollers 6, 8.
  • the shut-off 44 now blocks the right part of the lower fiber slot 12 from.
  • the discharge of the fibers from the second roller 8, which serves as a feed roller takes place with the same direction movement of the roller peripheral surfaces to each other, without the fibers are combed out over the trough edge of the cover 28.
  • Fig. 3 shows one of the Fig. 2 corresponding operating mode, in which, however, the shut-off element 44 is significantly smaller below the high-speed roller 10, so that a larger filling volume in the lower fiber slot 12 for collecting the Fibers is formed.
  • the shut-off element 44 is pivotally arranged to allow a change of the operating mode of the high-speed roller 10.
  • Fig. 4 shows an embodiment in which the shaft walls 46, 48 of the lower fiber slot 12 can be provided with vibrators 52, which can be operated depending on the position of the pivoting trough 44.
  • a vibrating device can be arranged in the swivel trough 44.
  • Fig. 5 differs from the preceding in that the air flow 40 (and alternatively the air flow 42) is not formed from the transport air 38, but by a separately supplied air flow, for example by blowing compressed air, preferably conditioned compressed air.
  • the transport air 38 is blown against it.
  • venting devices 60 for example in the form of Entlwestungshimmmen provided.
  • Fig. 7 shows a section through the first segmented roller 8, which has a common hollow shaft 36 on which for each roller segment stators 37, 38, 39 are arranged, which drive the rotor of the roller segments 30, 32, 34 via couplings 31, in particular hysteresis clutches.
  • the hollow shaft 36 is driven for example by an electric motor 72.
  • roller bearings 30, 32, 34 mounted via ball bearings 37 takes place via the coupling 31, which can transmit a definable and controllable torque.
  • it is a hysteresis coupling, which undergoes a change in torque over the variable gap width C between the coupling elements 33 and 35.
  • the hysteresis clutch operates without contact and wear, so that the speed ratios are automatically between the hollow shaft 36 and the Roll segments 30, 32, 34, depending on which torque is applied to the Walzensegementen 30, 32, 34, automatically adjusts.
  • This torque is defined by a spring constant of the fibers of the first crush zone at the end of the feed trough 18. This ensures that, with the same torque settings and the same physical properties of the fiber mixtures between the individual segments of the segmented roller 6, a balance of the torques is generated and, concomitantly, an equalization of the quantities of fibers. The missing amount of fiber is tracked at any time from the upper fiber slot 4.
  • an internal motor can be provided for each individual roller segment 30, 32, 34, which can exert the same function as the hysteresis clutch in a torque-controlled manner.
  • a speed monitor 41 may be provided which is coupled to a control 70 for the torque of the roller segments.
  • Fig. 8 shows in a plan view emerging from the feed device fiber flake mat 54 on the conveyor belt 50 with a subsequent weighing table 72 with a plurality, for example nine juxtaposed measuring cells 74, with which the basis weight of the exiting fiber flake mat 54 can be measured.
  • the measurement signal is used for the torque control of the roller segments 30, 32, 34 used, the number and width of which preferably corresponds to the number and width of the measuring cells 74.
  • Fig. 9 schematically shows the torque control for the roller segments in response to the measurement signals of the measuring cells 74, which are fed to the control for the Walzensegemente.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP10175496A 2007-06-25 2007-06-25 Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres Withdrawn EP2251466A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07110930A EP2009149A1 (fr) 2007-06-25 2007-06-25 Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP07110930.0 Division 2007-06-25

Publications (2)

Publication Number Publication Date
EP2251466A2 true EP2251466A2 (fr) 2010-11-17
EP2251466A3 EP2251466A3 (fr) 2011-04-06

Family

ID=38596060

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07110930A Withdrawn EP2009149A1 (fr) 2007-06-25 2007-06-25 Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres
EP10175496A Withdrawn EP2251466A3 (fr) 2007-06-25 2007-06-25 Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07110930A Withdrawn EP2009149A1 (fr) 2007-06-25 2007-06-25 Dispositif d'alimentation pour flocons de fibres tout comme procédé destiné à l'installation de fibres ou de flocons de fibres

Country Status (3)

Country Link
US (1) US7779512B2 (fr)
EP (2) EP2009149A1 (fr)
CN (2) CN101333708A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019005316A1 (de) * 2019-07-30 2021-02-04 Hubert Hergeth V-Matte

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH706658A1 (de) * 2012-06-29 2013-12-31 Rieter Ag Maschf Verfahren und Vorrichtung zur Regelung der Faserzufuhr zu einer Karde.
EP2695982A1 (fr) * 2012-08-06 2014-02-12 Oskar Dilo Maschinenfabrik KG Dispositif et méthode pour égaliser ou obtenir un profil donné à un matelas de flocons de fibres
CN103866429A (zh) * 2012-12-17 2014-06-18 信宜奕龙实业发展有限公司 一种梳棉机
US9551092B2 (en) * 2014-07-29 2017-01-24 American Felt & Filter Company Multi-fiber carding apparatus and method
US10131993B2 (en) * 2015-01-16 2018-11-20 Nanowear, Inc. Large scale manufacturing of hybrid nanostructured textile sensors
CN108085796A (zh) * 2017-12-08 2018-05-29 南通市苏中纺织有限公司 一种可伸缩棉纺下料用设备
CH714679A1 (de) * 2018-02-26 2019-08-30 Rieter Ag Maschf Füllschachtaustrag zur Speisung einer Karde.
CN109295604B (zh) * 2018-11-23 2023-04-25 威海鹏元纺织科技有限公司 人造毛皮机多速度工作辊微型梳理装置
CN110629291B (zh) * 2019-10-31 2024-03-19 江苏华茂自动化设备有限公司 一种梳麻机的出料压麻装置

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GB1014689A (en) * 1962-08-07 1965-12-31 Daiwa Spinning Co Ltd An apparatus for delivering fibre material coming out of a blowing room to carding engines
DE3734140C2 (de) * 1987-10-09 1999-01-28 Truetzschler Gmbh & Co Kg Vorrichtung zur Vergleichmäßigung des einer Karde, Krempel, Reiniger o. dgl. zuzuführenden Faserflockenvlieses
DE4038838B4 (de) * 1990-01-23 2005-12-22 Trützschler GmbH & Co KG Vorrichtung zum Speisen von in Flockenform befindlichem Fasergut, z. B. Baumwolle, Chemiefasern u. dgl., zu Verarbeitungsmaschinen
DE4200394B4 (de) * 1991-03-19 2004-12-02 Trützschler GmbH & Co KG Vorrichtung zum Reinigen und Öffnen von in Flockenform befindlichem Fasergut z. B. Baumwolle, synthetischem Fasergut u. dgl.
IT1264992B1 (it) * 1992-12-23 1996-10-17 Truetzschler & Co Dispositivo per l'alimentazione di materiale in fibre sotto forma di fiocchi, per esempio cotone, materiale in fibre sintetico o simili per
JPH11502272A (ja) * 1995-03-20 1999-02-23 イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー 織物加工設備用シュートフィーダー
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US6167593B1 (en) * 1998-06-12 2001-01-02 Tr{umlaut over (u)}tzschler GmbH & Co. KG Apparatus for varying the depth of a chute in a fiber feeder
DE19826070B4 (de) * 1998-06-12 2015-12-10 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereimaschine zum Herstellen eines Faserflockenvlieses, z. B. aus Baumwolle, Chemiefasern
DE19826071B4 (de) * 1998-06-12 2016-07-21 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereimaschine zum Herstellen und Regulieren eines Faserflockenvlieses, z. B. aus Baumwolle, Chemiefasern
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Publication number Priority date Publication date Assignee Title
DE102019005316A1 (de) * 2019-07-30 2021-02-04 Hubert Hergeth V-Matte

Also Published As

Publication number Publication date
US7779512B2 (en) 2010-08-24
US20080313860A1 (en) 2008-12-25
EP2009149A1 (fr) 2008-12-31
CN101333708A (zh) 2008-12-31
EP2251466A3 (fr) 2011-04-06
CN102011218A (zh) 2011-04-13

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