EP3610058B1 - Dispositif d'alimentation - Google Patents

Dispositif d'alimentation Download PDF

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Publication number
EP3610058B1
EP3610058B1 EP18704618.0A EP18704618A EP3610058B1 EP 3610058 B1 EP3610058 B1 EP 3610058B1 EP 18704618 A EP18704618 A EP 18704618A EP 3610058 B1 EP3610058 B1 EP 3610058B1
Authority
EP
European Patent Office
Prior art keywords
elastic lip
feeding device
feed
feed roller
contact surface
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.)
Active
Application number
EP18704618.0A
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German (de)
English (en)
Other versions
EP3610058A1 (fr
Inventor
Pavel JELINEK
Heinz Studer
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 EP3610058A1 publication Critical patent/EP3610058A1/fr
Application granted granted Critical
Publication of EP3610058B1 publication Critical patent/EP3610058B1/fr
Active 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
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/16—Feeding arrangements
    • 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
    • D01G15/40—Feeding apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • D01G31/003—Detection and removal of impurities

Definitions

  • the present invention relates to a feed device for feeding fiber flocks into a spinning preparation machine with a feed roller, a feed trough and an open electrical circuit with a voltage source, the circuit being closable by a metal part contaminating the fiber flocks.
  • a spinning preparation machine which has means for detecting metal parts in the fiber material.
  • These means comprise a pair of rollers through which the fiber material runs.
  • the rollers are arranged at a distance from one another.
  • the rollers are arranged in an electrical circuit, the circuit being closed when a metallic foreign body closes the gap between the two rollers.
  • the fiber material is stopped or moved backwards.
  • WO 90/12131 A1 a feed device for feeding fiber flocks into a spinning preparation machine with a feed roller and a feed trough.
  • a feed roller and the feed trough are electrically insulated from one another and form a metal detection device.
  • the disadvantage of this solution is that non-metallic foreign bodies cannot be recognized.
  • the object of the present invention is therefore to create a feed device which recognizes metal parts and non-metallic foreign bodies even without the need for an extra pair of rollers.
  • a feed device is proposed for feeding fiber flocks into a spinning preparation machine.
  • the spinning preparation machine can be a card, card or cleaner.
  • the feed device has a feed roller, a feed trough and an open electrical circuit with a voltage source.
  • the circuit is through one of the fiber flocks unclean metal part can be closed. Conversely, a closed circuit indicates a metal part contaminating the fiber flakes.
  • the open ends of the circuit are formed by the feed roller and the feed trough.
  • Two elements of the feed device that are already present are used to detect metal parts. Further mechanical parts that impair the fiber flow and have to be cleaned and serviced are not required.
  • the feed trough is electrically insulated from the feed roller.
  • An open circuit can then be formed in which the feed trough and the feed roller are the open ends.
  • the bearing of the feed roller is the insulator. So the isolation can be accomplished with very little effort.
  • the bearing is preferably provided with an electrically insulating coating.
  • the entire bearing of the feed roller and / or a bearing ring of the bearing are particularly preferably made of an electrically insulating plastic. Depending on the size of the feed roller and the mechanical requirements, one of the two variants may prove to be the more advantageous.
  • the bearing housing is made of plastic.
  • the component surrounding the bearing rings, which is provided with the fastening devices for resting on the machine, is used as the bearing housing.
  • the bearing bodies which in the case of a ball bearing are formed, for example, from individual balls held in a bearing cage, can also be provided made of ceramic. Ceramic balls have the necessary running properties with simultaneous electrical insulation.
  • Another alternative of electrical insulation can be achieved by installing appropriate pads between the bearing of the feed roller and the machine or the bearing and the feed roller itself, for example by coating or selecting the appropriate material for the feed roller shaft at the point where the feed roller is held in the bearing .
  • the feeding trough is assigned an elastic lip.
  • the elastic lip forms a gap between itself and the feed roller.
  • the feed trough has a contact surface and means are provided for detecting contact between the elastic lip and the contact surface. If the elastic lip is deformed by a foreign body, then it comes into contact with the contact surface, provided the foreign body and thus the elastic deformation are large enough. The contact and thus also the foreign body are recognized by the means for recognizing a contact. Through the contact of the elastic lip with the contact surface, non-metallic foreign bodies are also recognized.
  • the means for detecting a contact can have a piezoelectric element.
  • Piezoelectric elements are inexpensive, reliable and largely maintenance-free.
  • the piezoelectric element can be attached to the elastic lip and / or to the contact surface. When there is contact between the elastic lip and the contact surface, pressure is then exerted on the piezoelectric element, which in turn results in an electrical voltage that is detected by a sensor system.
  • the means for detecting a contact include electrical insulation between the elastic lip and the contact surface. A voltage is applied between the elastic lip and the contact surface and the contact between the elastic lip and the contact surface is detected by closing an electrical circuit. In this way, a contact between the elastic lip and the contact surface can be identified easily and inexpensively, with the electronics required for this in particular being inexpensive and robust.
  • the electrical potential of the feed trough is equal to the electrical potential of the contact surface and the electrical potential of the feed roller is equal to the electrical potential of the elastic lip, but different from the electrical potential of the feed trough.
  • the voltage generated by the voltage source is preferably between 1.5 V and 32 V, particularly preferably between 12 V and 28 V.
  • these voltages are easy to generate and, on the other hand, they do not require any extremely sensitive detectors.
  • the voltages are small enough not to pose a risk to the health of the operating personnel, should there be contact with one or both of the electrodes.
  • the electrical potential of the feed trough is equal to the electrical potential of the contact surface and the feed trough, the feed roller and the elastic lip each have a different electrical potential.
  • the feed roller and the elastic lip each have a different electrical potential.
  • the elastic lip and the contact surface form an opening to a cavity which, among other things, enables the elastic lip to move. So that this cavity is not contaminated, a seal is advantageously arranged between the elastic lip and the contact surface. This seal is deformable to such an extent that it can be pressed over when the elastic lip is deformed and thus does not hinder the electrical contact between the elastic contact surface or the pressure on the piezoelectric element.
  • a spacer bar is arranged between a base body of the feed trough and the elastic lip. This makes it possible to achieve a distance between the base body and the elastic lip that is optimal for clamping the fiber material. So that this distance can be adapted for different fiber lengths, the spacer bar is preferably exchangeable and / or adjustable. With especially long fiber lengths, above about 28 mm, the spacer bar can then be completely dispensed with.
  • the elastic lip is made of steel, in particular of chrome steel, since these materials have good elasticity with a good spring strength. Chrome steel is also corrosion-resistant.
  • a wall thickness of the elastic lip at its front end is preferably between 1.0 mm and 4.0 mm, particularly preferably between 1.5 mm and 2.0 mm, since this provides the necessary spring strength.
  • the contact surface is advantageously assigned to a support strip.
  • the support strip is arranged at such a distance from the elastic lip that the distance can be closed by elastic deformation of the elastic lip. If there were no support bar, a very large foreign body could deform the elastic lip so much that it leaves the elastic area and then does not return to its previous shape. The support strip prevents this and thus enables the elastic lip to last longer.
  • a particularly suitable material for the support strip is aluminum, since it has great dimensional stability while being light.
  • the feeding trough is divided into at least two segments along a working width of the feeding trough, an elastic lip being assigned to each segment. This simplifies the setting of the gap created by the elastic lip, since a constant gap width no longer has to be set over the entire working width.
  • a piezoelectric element is advantageously assigned to each segment or the elastic lips assigned to the individual segments are electrically isolated from one another and assigned to separate circuits. It is therefore possible to identify a foreign body separately for each segment. If this is indicated to the operating personnel, the search for the foreign body is simplified, the foreign body can consequently be removed more quickly and production can be resumed more quickly. It is also advantageous if the feed device comprises an acoustic and / or visual alarm that is triggered when there is contact between the elastic lip and the contact surface and / or the circuit between the feed roller and the feed trough and / or the elastic lip is closed. The alarm is triggered if a metal part contaminating the fiber flakes and / or another foreign body is detected. This draws the operator's attention to the metal part or the foreign body. The operating personnel can then stop production and / or remove the metal part or the foreign body.
  • the feed device comprises a control device which, when there is contact between the elastic lip and the contact surface and / or a closed circuit between the feed roller and the feed trough and / or the elastic lip, interrupts the feed of the fiber flocks and the feed roller persists.
  • the shutdown is advantageously controlled directly via the feed roller drive or its frequency converter. This enables the feed roller to be switched off immediately. With modern feed devices, it is possible for the surface of the feed roller to move only 10 mm further from the time a metal part or foreign body is detected until it comes to a standstill. In this way, damage to the feed roller and the feed trough can largely be avoided.
  • the signal In front of the control unit of the feed roller drive, the signal is forwarded to a central controller, which switches off the feed.
  • the shutdown of the feed or the feed roller in the event of contact between the elastic lip and the contact surface and / or a closed circuit between the feed roller and the feed trough and / or the elastic lip is dependent on lifting the food tray is activated. This means that the shutdown is not active when there is no supply, which means that incorrect switching can be avoided, for example due to vibrations when the machine is empty.
  • the control device rotates it back by a predefined or predefinable angle.
  • This angle is or is set in such a way that the metal part or the foreign body reaches an area from which it can be easily removed by the operating personnel.
  • the feed device is designed according to the preceding description, it being possible for the features mentioned to be present individually or in any combination.
  • Figure 1 shows a schematic side view of a card 1.
  • the fibers in the card 1 are transported from left to right.
  • a fiber mat 2 first runs over a feed plate 3 and then reaches a feed device 4.
  • the feed device 4 has a feed trough 5 which interacts with a feed roller 6.
  • the fiber mat 2 clamped between the feed trough 5 and the feed roller 6 is then fed to a lickerin roller 7.
  • the fiber fleece goes on to a reel 8 and is processed further between the reel 8 and a cover 9, shown here very schematically.
  • the fiber fleece is then removed from a doffer roller 10 and passed on to a compacting unit 11, where it is compacted to form a card sliver 12.
  • FIG. 4 shows a schematic side view of a feed device 4 according to the invention.
  • the feed device 4 can be part of the FIG Figure 1 shown card 1, but it can also be part of a card or a cleaner.
  • the feed device 4 has a feed trough 5 and a feed roller 6. A part of the lickerin roller 7 is also shown.
  • the feed trough 5 and the feed roller 6 are arranged as open ends in an open circuit.
  • the feed roller 6 can be electrically connected via its axis, for example.
  • the circuit also includes a voltage source 13 and a current measuring device 14. If the gap between the feed trough 5 and the feed roller 6 is closed by a metal part contaminating the fiber flocks, the circuit is also closed. A current then flows which is detected by the current measuring device 14. A current flow detected by the current measuring device 14 thus indicates a metal part between the feed trough 5 and the feed roller 6.
  • the current measuring device 14 is connected to an acoustic and / or optical alarm 15, which indicates the metal part to the operating personnel.
  • the current measuring device 14 is also advantageously connected to a control device 16 which, when a metal part is detected, stops the feed roller 6 so that the metal part does not advance further and does not cause major damage. It is particularly advantageous if the control device 16, after it has been stopped, still rotates the feed roller 6 backwards so far that the metal part comes out from under the feed trough 5 and can be easily removed by the operating personnel.
  • the feed trough 5 and the feed roller 6 must be electrically isolated from one another.
  • This insulation can be achieved via an electrically insulating bearing 17 of the feed roller 6, which is shown in FIG Figure 3 is shown in cross section.
  • the electrical insulation of the bearing 17 can be achieved by a corresponding coating of the bearing surfaces.
  • the entire bearing 17 of the feed roller 6 consists of an electrically insulating plastic.
  • the axis 18 of the feed roller 6 is consequently electrically isolated from the bearing 17 and the other parts of the feed device 4.
  • the one in the Figure 5 The embodiment shown is only shown a part of the feed roller 6 so that the details of the feed trough 5 can be made more visible.
  • the electrical connection to the feed roller 6 is also shown only very schematically, but it can take place via the axis of the feed roller 6 as above.
  • the feed tray 5 in the exemplary embodiment of FIG Figure 5 has a base body 21 which is partially protected from wear by a protective plate 22. Furthermore, a spacer strip 23 is arranged on the base body 21 in order to enable an optimal distance between the base body 21 and an elastic lip 24.
  • the spacer bar 23 is designed to be exchangeable so that it can be adapted to the respective fiber length. In the case of very long fibers, the spacer bar 23 can even be omitted entirely.
  • the elastic lip 24 is arranged so that fibers can be clamped between it and the feed roller 6.
  • a support strip 25 is also arranged on the side of the elastic lip 24 facing away from the feed roller 6.
  • the elastic lip 24 can be elastically deformed at least until it touches the support strip 25.
  • the support strip 25 prevents further deformation of the elastic lip 24, for example due to a hard foreign body in the fiber material.
  • the elastic lip 24 is therefore in particular not deformed in an area in which permanent deformation occurs. A return of the elastic lip 24 to its original shape and position is always guaranteed.
  • an easily deformable seal 27 is arranged between the elastic lip 24 and the support strip 25.
  • the elastic lip 24 and the support strip 25 are also arranged in the circuit.
  • an electrical insulation 29 first isolates the elastic lip 24 from the support strip 25.
  • the electrical circuit in this exemplary embodiment is constructed in such a way that the voltage source 13 supplies a positive (+ U) and a negative (-U) voltage in addition to earth (0 V).
  • the amounts of the positive and negative voltage do not have to be the same and other obvious designs of the voltage source are also possible.
  • the positive voltage is applied to the elastic lip 24, the negative voltage is applied to the feed roller 6 and the support strip 25 and the base body 21 or the protective plate 22 of the feed trough 5 are connected to earth.
  • the alarm 15 and the control device 16 are not shown in this figure for the sake of clarity.
  • the measured values of both current measuring devices 14 and 30 are used by the control device 16 to trigger an alarm 15 and to stop and / or retract the feed roller 6.
  • the alarm can use different tones, colors or other representations to indicate in which area a metal part and / or foreign body was detected.
  • the angle by which the feed roller is moved back after a stop can also be selected as a function of the area in which the metal part or the foreign body was detected.
  • the feed roller 6 and the elastic lip 24 have the same electrical potential.
  • a simpler voltage source 13 can therefore be used.
  • a measurement of an electrical contact between the feed roller 6 and the elastic lip 24, triggered by a smaller metal part, is then no longer possible.
  • the contact between the elastic lip 24 and the contact surface 28 is detected by a piezoelectric element 31.
  • the piezoelectric element 31 is arranged on the contact surface 28 of the support strip 25, but it can also be arranged on the elastic lip 24.
  • pressure is exerted on the piezoelectric element 31, which leads to an electrical voltage between two electrodes of the piezoelectric element 31. This electrical voltage is measured and thus the contact is detected.
  • the circuit for detecting a metal part between the feed roller 6 and the feed trough 5 is analogous to that in FIG Figure 2 shown executed.
  • the alarm 15, not shown here, and the control device 16 are advantageously also connected to the measuring device of the piezoelectric element 31 so that a differentiated alarm can be triggered and / or the feed roller can be optimally stopped and / or retracted.
  • the feed trough 5 is shown without a spacer bar, which is optimal for particularly long fiber lengths.
  • the spacer bar 23 is designed as an adjustable rod 32. It can therefore be adjusted to different fiber lengths without complex modifications.
  • FIG 8 a schematic front view of a feed tray 5.
  • the elastic lip 24 is divided into four segments 24.1, 24.2, 24.3 and 24.4.
  • the individual segments are shorter than a single elastic lip 24 and can thus be adjusted better over their width.
  • the individual segments of the elastic lip 24 are also electrically isolated from one another.
  • an insulation layer 34 is applied in the area in which they adjoin one another, only one of which has been provided with a reference symbol for the sake of clarity.
  • the individual segments are each connected to the voltage source via a current measuring device. In the case of a foreign body or metal part in the fiber mat, it can thus be recognized in which segment this foreign body or this metal part is located. This is preferably indicated to the operating personnel so that the operating personnel can immediately search for the foreign body in the correct segment and then remove it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Claims (14)

  1. Dispositif d'alimentation permettant d'alimenter en flocons de fibres une machine de préparation de filature, comportant un cylindre d'alimentation (6), une auge d'alimentation (5) et un circuit électrique ouvert comportant une source de tension (14), le circuit pouvant être fermé par une partie métallique contaminant les flocons de fibres, caractérisé en ce que les extrémités ouvertes du circuit sont formées par le cylindre d'alimentation (6) et par l'auge d'alimentation (5) et l'auge d'alimentation (5) est électriquement isolée du cylindre d'alimentation (6), le palier (17) du cylindre d'alimentation (6) étant l'isolateur, et en ce qu'une lèvre élastique (24) est associée à l'auge d'alimentation (5), l'auge d'alimentation (5) présente une surface de contact (28) et des moyens de détection d'un contact sont prévus entre la lèvre élastique (24) et la surface de contact (28).
  2. Dispositif d'alimentation selon la revendication précédente, caractérisé en ce que l'ensemble du palier (17) du cylindre d'alimentation (6) et/ou une bague (19) du palier (17) sont constitués d'une matière plastique électriquement isolante.
  3. Dispositif d'alimentation selon la revendication 1 ou 2, caractérisé en ce que les moyens de détection d'un contact comprennent une isolation électrique (29) entre la lèvre élastique (24) et la surface de contact (28), une tension étant appliquée entre la lèvre élastique (24) et la surface de contact (28) et le contact entre la lèvre élastique (24) et la surface de contact (28) étant détecté en fermant un circuit.
  4. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que le potentiel électrique de l'auge d'alimentation (5) est égal au potentiel électrique de la surface de contact (28) et le potentiel électrique du cylindre d'alimentation (6) est égal au potentiel électrique de la lèvre élastique (24), mais est différent du potentiel électrique de l'auge d'alimentation (5).
  5. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que le potentiel électrique de l'auge d'alimentation (5) est égal au potentiel électrique de la surface de contact (28), et l'auge d'alimentation (5), le cylindre d'alimentation (6) et la lèvre élastique (24) présentent respectivement un potentiel électrique différent.
  6. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que les moyens de détection d'un contact présentent un élément piézoélectrique (31), l'élément piézoélectrique (31) étant fixé à la lèvre élastique (24) et/ou à la surface de contact (28).
  7. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce qu'un joint d'étanchéité (27) est disposé entre la lèvre élastique (24) et la surface de contact (28).
  8. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce qu'une bande d'écartement (23) de préférence interchangeable et/ou réglable est disposée entre un corps de base (21) de l'auge d'alimentation (5) et la lèvre élastique (24).
  9. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que la lèvre élastique (24) est constituée d'acier, notamment d'acier chromé, et une épaisseur de paroi de la lèvre élastique (24) à son extrémité avant est de préférence comprise entre 1,0 mm et 4,0 mm, de manière particulièrement préférée entre 1,5 mm et 2,0 mm.
  10. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que la surface de contact (28) est associée à une bande de support (25), la bande de support (25) étant de préférence constituée d'aluminium.
  11. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que l'auge d'alimentation (5) est divisée en au moins deux segments (24.1 - 24.4) le long d'une largeur de travail de l'auge d'alimentation (5) et une lèvre élastique (24) est associée à chaque segment (24.1 - 24.4).
  12. Dispositif d'alimentation selon la revendication 11, caractérisé en ce qu'un élément piézoélectrique (31) est associé à chaque segment (24.1 - 24.4) ou les lèvres élastiques (24) associées aux segments individuels (24.1 - 24.4) sont électriquement isolées les unes des autres et associées à des circuits séparés.
  13. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'alimentation (4) comprend une alarme acoustique et/ou optique (15) qui se déclenche lors de la survenue d'un contact entre la lèvre élastique (24) et la surface de contact (28) et/ou lors de la fermeture du circuit entre le cylindre d'alimentation (6) et l'auge d'alimentation (5) et/ou la lèvre élastique (24).
  14. Dispositif d'alimentation selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'alimentation (4) comprend un système de commande (16) qui, lors d'un contact entre la lèvre élastique (24) et la surface de contact (28) et/ou lors de la fermeture du circuit entre le cylindre d'alimentation (6) et l'auge d'alimentation (5) et/ou la lèvre élastique (24), interrompt l'alimentation en flocons de fibres, arrête le cylindre d'alimentation (6) et fait de préférence ensuite tourner le cylindre d'alimentation (6) d'un angle prédéterminé ou pouvant être prédéterminé.
EP18704618.0A 2017-04-13 2018-01-31 Dispositif d'alimentation Active EP3610058B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00507/17A CH713692A1 (de) 2017-04-13 2017-04-13 Speisevorrichtung.
PCT/IB2018/050588 WO2018189595A1 (fr) 2017-04-13 2018-01-31 Dispositif d'alimentation

Publications (2)

Publication Number Publication Date
EP3610058A1 EP3610058A1 (fr) 2020-02-19
EP3610058B1 true EP3610058B1 (fr) 2021-04-14

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EP18704618.0A Active EP3610058B1 (fr) 2017-04-13 2018-01-31 Dispositif d'alimentation

Country Status (4)

Country Link
EP (1) EP3610058B1 (fr)
CN (1) CN110869549B (fr)
CH (1) CH713692A1 (fr)
WO (1) WO2018189595A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH716307A1 (de) * 2019-06-12 2020-12-15 Rieter Ag Maschf Speisevorrichtung zur Speisung von Faserflocken in eine Spinnereivorbereitungsmaschine mit einer Erkennungsvorrichtung zum Erkennen von Fremdmaterial.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB465899A (en) 1935-12-06 1937-05-19 Thomas Merchant An electrically controlled stop-motion device for detecting metallic substances in fibrous materials and stopping its passage into process machinery, such as scutching, opening, carding, scribbling and like machines
FR1411766A (fr) * 1964-07-28 1965-09-24 Cintas Rigidas Textiles Dispositif de contrôle des mèches et nappes dans les machines de filature
JPS5438666B2 (fr) * 1973-03-27 1979-11-22
CH623361A5 (fr) * 1977-07-18 1981-05-29 Rieter Ag Maschf
DE3912115A1 (de) * 1989-04-13 1990-10-18 Hollingsworth Gmbh Reinigungsvorrichtung fuer textilfasern
IT1236911B (it) * 1989-12-21 1993-04-26 Marzoli & C Spa Procedimento e dispositivo di alimentazione di materiale in fibre in una macchina di preparazione alla filatura, in particolare un apritoio
DE59811509D1 (de) * 1997-12-23 2004-07-08 Rieter Ag Maschf Elastische Speisemulde
DE19855571A1 (de) * 1998-12-02 2000-06-08 Truetzschler Gmbh & Co Kg Vorrichtung an einer Spinnereimaschine zum Herstellen eines Faserverbandes, z.B. aus Baumwolle, Chemiefasern
DE10132711A1 (de) * 2001-07-05 2003-01-16 Truetzschler Gmbh & Co Kg Vorrichtung an einem Reiniger, einer Karde o. dgl. zum Reinigen und Öffnen von Textilmaterial, insbesonder Baumwolle
CN2673890Y (zh) * 2003-12-02 2005-01-26 欧阳俊青 具有压力传感器的给棉板
CN105951221B (zh) * 2016-07-13 2018-07-17 卓郎（常州）纺织机械有限公司 一种梳棉机分段式弹性给棉板及其制作方法

Non-Patent Citations (1)

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Title
None *

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Publication number Publication date
WO2018189595A1 (fr) 2018-10-18
CN110869549B (zh) 2022-06-07
CN110869549A (zh) 2020-03-06
EP3610058A1 (fr) 2020-02-19
CH713692A1 (de) 2018-10-15

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