EP2302119B1 - Film de buse pour une poutre à buse doté de segments de film pouvant être reliés - Google Patents

Film de buse pour une poutre à buse doté de segments de film pouvant être reliés Download PDF

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Publication number
EP2302119B1
EP2302119B1 EP09011918A EP09011918A EP2302119B1 EP 2302119 B1 EP2302119 B1 EP 2302119B1 EP 09011918 A EP09011918 A EP 09011918A EP 09011918 A EP09011918 A EP 09011918A EP 2302119 B1 EP2302119 B1 EP 2302119B1
Authority
EP
European Patent Office
Prior art keywords
connection
nozzle
foil
segments
film
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.)
Not-in-force
Application number
EP09011918A
Other languages
German (de)
English (en)
Other versions
EP2302119A1 (fr
Inventor
Reinhold Eydner
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.)
Groz Beckert KG
Original Assignee
Groz Beckert 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.)
Filing date
Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP09011918A priority Critical patent/EP2302119B1/fr
Priority to US12/881,967 priority patent/US9816216B2/en
Priority to CN2010102875809A priority patent/CN102021747B/zh
Priority to JP2010211213A priority patent/JP5798706B2/ja
Publication of EP2302119A1 publication Critical patent/EP2302119A1/fr
Application granted granted Critical
Publication of EP2302119B1 publication Critical patent/EP2302119B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Definitions

  • the invention relates to a nozzle foil for a nozzle strip of a textile processing machine.
  • the textile machine has for this purpose a nozzle strip, which contains a plurality of nozzle openings, through which the water is formed into fine, needle-like water jets.
  • a nozzle strip is for example from the US Pat. No. 7,237,308 B2 known.
  • the nozzle strip comprises a carrier part, on which the nozzle foil is arranged with the nozzle openings. To simplify the handling of the nozzle foil, this can be divided into several lengths. The individual lengths are fixedly connected to the carrier, for example by the use of an adhesive, such as a UV-curable adhesive or epoxy.
  • Out DE 100 22 297 A1 is a nozzle foil known in Run longitudinally divided, wherein the nozzle openings are each formed in half in one of the nozzle foil parts.
  • the two nozzle film parts When inserting the two nozzle film parts in the nozzle strips they are pressed together with one of the associated flat surfaces.
  • the nozzle foil according to the present invention has at least two foil segments that can be positively connected to one another.
  • the two film segments can be mechanically connected to one another, for example, by connecting means on one film segment and connection countermeans on the other film segment.
  • the subdivision of the nozzle film into several film segments simplifies handling both during assembly and during transport of the nozzle film.
  • the production of shorter film segments is also simplified compared to the production of up to several meters long nozzle film and allows the use of particularly wear-resistant materials such as ceramic or carbide.
  • the production of shorter film segments offers more freedom in terms of film thickness. So it is possible to produce films with a thickness greater than 1 mm as well as films with a thickness of a few mm.
  • connection means and the connection counter means on at least one connection projection and at least one connection recess, wherein when produced connection of two film segments, each connection projection engages in a corresponding connection recess.
  • the connecting means may have both one or more connecting projections, as well as one or more connecting recesses.
  • the connection countermeans have connection recesses or connecting projections, which cooperate with the associated connection projections or connection recesses of the connection means and can establish a connection.
  • the connection projections and connection recesses are molded onto or molded onto the respective film segment.
  • the connection projections or connection recesses are produced together with the film segment from a material. In the production of the foil segment, for example, they can be punched out in a simple manner or cut out with the aid of a laser.
  • each film segment preferably has a connection surface which comes into abutment with the respectively associated connection surface of the other film segment, so that the two film segments adjoin one another via their respective connection surfaces connect.
  • the connecting projection projecting from the connection surface of the film segment.
  • the connection recesses can be recessed in relation to the connection surface into the relevant foil segment.
  • connection projection has an extended end section. This can prevent accidental disconnection of the manufactured connection in a direction transverse to the extension.
  • the connection projection can also expand simultaneously in two directions. This can be achieved by the fact that the extended end portion of the connecting projection tapers in a plug-in direction in which it can be inserted in the associated connecting recess for producing the connection. In this way accidental disconnection in two directions can be avoided simultaneously. The correct alignment of the top and bottom of the two film segments to be joined can thus be ensured.
  • the pad of a foil segment can be in one plane.
  • the connection surface has a plurality of adjoining surface sections whose surface normals point in different directions.
  • a convexly and / or concavely curved connecting surface can also be provided.
  • two film segments overlap with each other in the compound produced in the region of the joint.
  • the pad can have a step-shaped course.
  • one or more surface portions of the connection surface may be present on a projecting connection part of a foil segment, the connection parts being produced when the connection is made are arranged one above the other or side by side and thereby results in an overlap in the region of the junction of the film segments.
  • FIG. 1 shows a schematic cross-sectional view of a nozzle bar 10 of a textile processing machine for the production of nonwoven fabric.
  • the nozzle bar 10 has a two-part carrier element 11 into which a nozzle foil 12 is inserted between an upper part 11a and a lower part 11b.
  • the upper part 11a has an inlet channel 13, to which is supplied from a pressure source 14 under pressure water.
  • the pressurized water passes through the inlet channel 13 to the top 15 of the nozzle foil 12.
  • the nozzle foil 12 is penetrated by a plurality of nozzle openings 16.
  • the water present at the upper side 15 at the nozzle openings 16 is formed by the nozzle openings 16 to fine needle-like water jets and ejected at the bottom 17 of the nozzle film 12 via an outlet channel 18 in the lower part 11 b of the support member 11.
  • the water jets 19 are in FIG. 1 dotted shown schematically. They impinge below the nozzle bar 10 on a random fiber web 20, whereby the fibers of the random fiber scrim engulf and form a nonwoven fabric.
  • the nozzle foil 12 has a series of nozzle openings 16, which are introduced in a longitudinal direction L adjacent to one another in the nozzle foil 12.
  • the diameter of the nozzle opening 16 may be about 0.05 to 0.2 mm.
  • the nozzle foil 12 may be several meters long in the longitudinal direction L. It is also possible to arrange the nozzle openings 16 in a plurality of rows L in the longitudinal direction L adjacent to one another in the nozzle foil 12.
  • the nozzle foil 12 may be about 0.1 to 1.5 mm thick.
  • the width of the nozzle foil 12 in a transverse direction Q may be about 10 to 35 mm.
  • the distance between two adjacent nozzle openings 16 may extend in a range of about 03 mm to 1 mm.
  • the nozzle foil 12 consists of several foil segments adjoining one another in the longitudinal direction L.
  • connection point 26 Two adjacent longitudinally L film segments 25 are mechanically connected to each other at a junction 26 ( FIG. 2 ).
  • a positive connection of two adjacent foil segments 25 is produced.
  • connecting means 27 are provided on a foil segment 25, which cooperate with connection countermeans 28 on the other foil segment for producing the compound.
  • they can also be connected to one another in a material-locking manner at the connection point 26, for example by gluing. As a result, the fluid-tightness at the connection point 26 can be produced or improved.
  • the connecting means 27 have one and, according to the example, a plurality of connecting projections 29.
  • the connection counter means 28 comprise one or more connection recesses 30.
  • the connection means 27 have connection recesses 30 and the connection counter means 28 have connection projections 29.
  • the number of connection projections 29 and the connection recesses 30 can also vary.
  • two connection projections 29 and two connection recesses 30 are provided at each connection point 26 of two adjoining film segments 25.
  • the film segment 25 including the associated connecting projections 29 and connecting recesses 30 is made of a uniform material, for. B. metal made in one piece.
  • Each film segment 25 has a connection surface 33 in the region of the connection means 27 or the connection countermeans 28. Close when the connection is established the connected film segments 25 at the junction 26 with their pads 33 to each other.
  • the pad 33 may extend in a plane, as for example FIG. 7 is recognizable. There, the connection surface 33 extends in a plane which is spanned by the transverse direction Q and by a height direction H.
  • the height direction H is perpendicular to the transverse direction Q and the longitudinal direction L.
  • the surface normal N of the pad 33 in this case has in the longitudinal direction L.
  • connection surface 33 of a foil segment 25 has a plurality of surface sections 34.
  • the surface normals N of at least two surface portions 34 of the connection surface 33 point in different directions.
  • a stepped contact surface 33 can result, as shown schematically in FIGS FIGS. 4, 5 and 9 is shown.
  • the two interconnected film segments 25 thereby overlap in the connection region 26. That is, they run in the connection region 26 in the longitudinal direction L along an overlapping portion U side by side, as shown in the FIGS. 4 and 5 is shown, or on top of each other, as in the embodiment according to FIG. 9 the case is.
  • connection surfaces 33 of the two film segments 25 abut one another in the overlapping section U.
  • the surface normal N of these along the overlapping portion U abutting surface portions 34 have, for example, in the transverse direction Q or in the height direction H.
  • FIG. 9 has the film segment 25 in the region of the connecting means 27 a Connecting part 35, which is contoured cuboidal example.
  • the connecting projections 29 are provided in the height direction H above the connecting part 35.
  • the length of the two connecting protrusions 29 corresponds approximately to the length of the connecting part 35.
  • the length of the connecting part 35 determines the length of the overlapping section U.
  • the connecting protrusions 29 project away from a first surface section 34a of the film segment 25 and extend along a second surface section 34b is formed from the top of the connecting part 35.
  • the front-side end face of the connection part 35 represents the third surface section 34c.
  • the three surface sections 34a, b, c form the connection surface 33 of the film segment 25.
  • the film segment 25 to be joined has two connection recesses 30, which are introduced into a connection part 35 is made in the overlap section U on the connection part 35 of the connecting projections 29 having foil segment 25, as shown in FIG FIG. 9 is illustrated with dashed lines.
  • successive foil segments 25 are arranged in alignment with one another in the longitudinal direction L.
  • the longitudinal edges of the film segments 25 form a substantially step-less running longitudinal edge of the nozzle film 12.
  • the nozzle openings 16 are arranged in alignment in a row extending in the longitudinal direction L.
  • the film segments 25 in the embodiment according to FIG. 6 staggered to each other.
  • two parallel to each other extending rows 40 of nozzle openings 16.
  • the connection surface 33 is thereby formed by an end portion of the longitudinal direction L extending side surface 41 of the film segment 25.
  • the connecting means 27 and the connection countermeans 28 are provided.
  • connection projection 29 may basically have many different contours or shapes. It protrudes from a surface portion 34 of the pad 33 away. Starting from this surface portion 34, the connecting projection 29 expands at least in sections. Like this for example in FIG. 7 can be seen, the connection projection 29 on an extended end portion 44.
  • This extended end portion 44 is formed according to the example circular or oval-cylindrical and connected via a transverse in the Q seen relative to the end portion 44 narrower web 45 with the surface portion 34 of the pad 33, from which the connecting projection 29 protrudes.
  • the height of the connecting projection 29 corresponds essentially to the thickness of the film segment 25 in the height direction H seen.
  • connection recess 30 has a cylindrical hole 46 which is open via a slot 47 to the connection surface 33.
  • the slot 47 serves to receive the web 45.
  • the insertion direction in which the connection projections 29 are inserted into the connection recesses 30 here corresponds to the height direction H.
  • the connection recesses 30 are open in the insertion direction at least to one side 15, 17.
  • the connecting projections 29 and the associated connecting recesses 30 may also be prismatic ( FIG. 3 ).
  • the connecting projection 29 has a trapezoidal contour. Starting from the connecting surface 33, the connecting projection 29 widens continuously in the transverse direction Q. According to the embodiment FIG. 3 arises between the film segments 25, a so-called dovetail joint.
  • the extended end portion 44 of the connecting projection 29 tapers in the height direction H either to the top 15 or, as in FIG. 8 shown, towards the bottom 17.
  • the extended end portion 44 has, for example, the shape of a truncated cone. It is understood that the inner contour of the connecting recess 30 is then also frusto-conical. Due to the conical shape of the connecting projection 29 seen in the vertical direction H can be easily aligned in a plane when connecting two film segments 25 whose top and bottom. With other contours of the connecting projections 29 or connecting recesses 30, a shape tapering in the direction of height H can be provided.
  • connecting projections 29 and the connecting recesses 30 of a film segment 25 are made equal. In a modification to this, it is also possible to choose the connecting projections 29 and the connecting recesses 30 of a film segment 25 of different sizes. Alternatively or additionally, the connecting projections 29 or the connecting recesses 30 of a foil segment 25 could also have different contours.
  • connection surfaces 33 and the surface segments 34 extend in the longitudinal direction L, in the height direction H or in the transverse direction Q.
  • surface sections 34 or connection surfaces 33 could also be provided whose surface normal N is oblique to the longitudinal direction L and /. or height direction H and / or transverse direction Q are aligned.
  • the invention relates to a nozzle foil 12 for a nozzle bar 10 of a textile processing machine.
  • the nozzle foil 12 has a plurality of nozzle openings 16 which are arranged in one or more rows 40 in the longitudinal direction L.
  • the nozzle foil 12 consists of at least two foil segments 25. In each case two adjacent foil segments 25 are mechanically and in particular positively connected to one another. When the connection is made, the tops 15 and the bottoms 17 of the film segments 25 are each in a common plane.
  • connecting means 27 are provided on a film segment, which cooperate with connection counter-means 28 of the other film segment 25.
  • the connection means 27 and the connection counter means 28 are an integral part of the respective film segment 25.
  • the connection means 27 and the connection counter means 28 are in particular produced simultaneously with the respective film segment 25. They consist of the same material as the film segment 25 in question.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)

Claims (13)

  1. Film d'injection pour une rampe d'injection (10) d'une machine de traitement textile, comprenant une pluralité d'ouvertures d'injection (16) qui se trouvent, en position d'utilisation, entre un canal d'entrée (13) et un canal de sortie (18) d'un élément porteur (11) de la rampe d'injection (10), le film d'injection (12) comportant au moins deux segments de film (25) pouvant être reliés entre eux par complémentarité de formes.
  2. Film d'injection selon la revendication 1, caractérisé en ce qu'en position d'utilisation, les segments de film (25) sont reliés entre eux par liaison de matière.
  3. Film d'injection selon la revendication 1, caractérisé en ce que sur un segment de film (25) sont prévus des moyens de liaison (27) qui coopèrent avec des moyens de liaison complémentaires (28) d'un autre segment de film (25) pour établir la liaison des deux segments de film (25).
  4. Film d'injection selon la revendication 3, caractérisé en ce que les moyens de liaison (27) et/ou les moyens de liaison complémentaires (28) présentent au moins une saillie de liaison (29) et/ou au moins un évidement de liaison (30), chaque saillie de liaison (29) s'engageant dans un évidement de liaison (30) correspondant lorsque la liaison de deux segments de film (25) est établie.
  5. Film d'injection selon la revendication 1, caractérisé en ce que le segment de film (25) présente une surface de raccordement (33), et deux segments de film (25) reliés entre eux se raccordent l'un à l'autre par leurs surfaces de raccordement (33) respectives.
  6. Film d'injection selon la revendication 4 en liaison avec la revendication 5, caractérisé en ce que la saillie de liaison (29) s'étend en s'éloignant de la surface de raccordement (33) du segment de film (25).
  7. Film d'injection selon la revendication 6, caractérisé en ce que la saillie de liaison (29) présente une portion d'extrémité élargie (44).
  8. Film d'injection selon la revendication 7, caractérisé en ce que la portion d'extrémité élargie (44) de la saillie de liaison (29) s'amincit dans une direction (H) dans laquelle elle peut être insérée dans l'évidement de liaison (30) associé pour établir la liaison.
  9. Film d'injection selon la revendication 5, caractérisé en ce que la surface de raccordement (33) s'étend dans un plan.
  10. Film d'injection selon la revendication 5, caractérisé en ce que la surface de raccordement (33) présente plusieurs portions de surface (34) dont les normales à la surface (N) sont orientées dans différentes directions (L, H, Q).
  11. Film d'injection selon la revendication 1, caractérisé en ce que deux segments de film (25) reliés entre eux se chevauchent au point de liaison (26).
  12. Film d'injection selon la revendication 11, caractérisé en ce que chaque segment de film (25) présente une partie de raccordement (35) qui, lorsque la liaison est établie, est disposée en chevauchement avec la partie de raccordement (35) du segment de film (25) relié.
  13. Film d'injection selon la revendication 12 en liaison avec la revendication 10, caractérisé en ce qu'au moins une portion de surface (34) de la surface de raccordement (33) est prévue sur la partie de raccordement (35).
EP09011918A 2009-09-18 2009-09-18 Film de buse pour une poutre à buse doté de segments de film pouvant être reliés Not-in-force EP2302119B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09011918A EP2302119B1 (fr) 2009-09-18 2009-09-18 Film de buse pour une poutre à buse doté de segments de film pouvant être reliés
US12/881,967 US9816216B2 (en) 2009-09-18 2010-09-14 Nozzle foil for a nozzle bar with connectable foil segments
CN2010102875809A CN102021747B (zh) 2009-09-18 2010-09-17 用于喷杆的具有可连接箔节段的喷嘴箔
JP2010211213A JP5798706B2 (ja) 2009-09-18 2010-09-21 ノズル・バーのための連結可能なフォイル・セグメントを有するノズル・フォイル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09011918A EP2302119B1 (fr) 2009-09-18 2009-09-18 Film de buse pour une poutre à buse doté de segments de film pouvant être reliés

Publications (2)

Publication Number Publication Date
EP2302119A1 EP2302119A1 (fr) 2011-03-30
EP2302119B1 true EP2302119B1 (fr) 2012-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09011918A Not-in-force EP2302119B1 (fr) 2009-09-18 2009-09-18 Film de buse pour une poutre à buse doté de segments de film pouvant être reliés

Country Status (4)

Country Link
US (1) US9816216B2 (fr)
EP (1) EP2302119B1 (fr)
JP (1) JP5798706B2 (fr)
CN (1) CN102021747B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2301671B1 (fr) * 2009-09-18 2012-06-06 Groz-Beckert KG Rampe de buses pour une machine de traitement du textile
DE202014101647U1 (de) * 2014-04-08 2015-07-09 Autefa Solutions Germany Gmbh Düsenbalken
EP3205762B1 (fr) * 2016-02-11 2018-04-25 Groz-Beckert KG Rampe de buses pour une machine de traitement du textile

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Also Published As

Publication number Publication date
CN102021747A (zh) 2011-04-20
JP2011063924A (ja) 2011-03-31
CN102021747B (zh) 2012-11-28
JP5798706B2 (ja) 2015-10-21
EP2302119A1 (fr) 2011-03-30
US9816216B2 (en) 2017-11-14
US20110067213A1 (en) 2011-03-24

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