FR2856413A1 - WATER JET PROJECTION MACHINE ON A TABLECLOTH - Google Patents

WATER JET PROJECTION MACHINE ON A TABLECLOTH Download PDF

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Publication number
FR2856413A1
FR2856413A1 FR0307335A FR0307335A FR2856413A1 FR 2856413 A1 FR2856413 A1 FR 2856413A1 FR 0307335 A FR0307335 A FR 0307335A FR 0307335 A FR0307335 A FR 0307335A FR 2856413 A1 FR2856413 A1 FR 2856413A1
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FR
France
Prior art keywords
sleeve
support cylinder
intended
rotation
cylinder
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.)
Granted
Application number
FR0307335A
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French (fr)
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FR2856413B1 (en
Inventor
Pascal Benassi
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.)
Rieter Perfojet SAS
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Rieter Perfojet SAS
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Publication date
Application filed by Rieter Perfojet SAS filed Critical Rieter Perfojet SAS
Priority to FR0307335A priority Critical patent/FR2856413B1/en
Priority to EP04291113A priority patent/EP1489213A1/en
Publication of FR2856413A1 publication Critical patent/FR2856413A1/en
Application granted granted Critical
Publication of FR2856413B1 publication Critical patent/FR2856413B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H18/00Needling machines
    • D04H18/04Needling machines with water jets

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Cette machine comprend une caisse (1) cylindrique, un cylindre support (4) perforé qui tourne autour de la caisse (1), un manchon (5) microtroué qui est enfilé sur le cylindre support (4) et des moyens destinés à empêcher le manchon (5) de se déplacer le long du cylindre support (4) mais qui autorise la rotation du manchon (5) sur le cylindre support (4).Fabrication de non tissé.This machine comprises a cylindrical body (1), a perforated support cylinder (4) which rotates around the body (1), a micro-holed sleeve (5) which is threaded onto the support cylinder (4) and means intended to prevent the sleeve (5) to move along the support cylinder (4) but which allows the rotation of the sleeve (5) on the support cylinder (4). Manufacture of non-woven.

Description

La présente invention se rapporte aux machines de projection de jetsThe present invention relates to jet projection machines

d'eau sur une nappe. Des machines de ce genre peuvent être utilisées pour produire des produits textiles tissés, tricotés, et tout particulièrement des non tissés.  of water on a tablecloth. Machines of this kind can be used to produce woven and knitted textile products, and in particular nonwovens.

La machine comprend une caisse cylindrique qui a au moins une fente s'étendant longitudinalement, de préférence, sensiblement, sur toute la génératrice. L'intérieur de la caisse cylindrique communique avec des moyens de création d'une dépression. Des moyens d'entraînement entraînent un 10 cylindre support perforé entourant la caisse à distance de celle-ci. Un manchon microtroué est enfilé sur le cylindre et il est prévu des moyens empêchant le manchon de se déplacer le long du cylindre. Le manchon est rendu solidaire en rotation et en translation du cylindre support par l'intermédiaire d'une liaison vissée (maintien du manchon par l'extérieur), par 15 un système de joints gonflables (maintien du manchon par l'intérieur). Un injecteur projette des jets d'eau sous pression en direction de la face extérieure du manchon. Il est prévu des moyens pour faire passer une nappe sur la face extérieure du manchon à l'endroit o y sont dirigés les jets d'eau.  The machine comprises a cylindrical case which has at least one slot extending longitudinally, preferably substantially over the entire generator. The interior of the cylindrical body communicates with means for creating a depression. Drive means drive a perforated support cylinder surrounding the body away from it. A micro hole sleeve is threaded onto the cylinder and means are provided preventing the sleeve from moving along the cylinder. The sleeve is made integral in rotation and in translation with the support cylinder by means of a screw connection (holding the sleeve from the outside), by a system of inflatable seals (holding the sleeve from the inside). An injector projects jets of pressurized water towards the outside of the sleeve. Means are provided for passing a sheet over the outer face of the sleeve at the point where the jets of water are directed there.

Les différences de diamètre nécessaires au montage du manchon sur le cylindre support et la fixation permanente du manchon sur le cylindre support conjuguées aux efforts engendrés par la nappe de produit qui passe sur le manchon entraînent une fatigue due à la flexion alternée du manchon et sa rupture.  The differences in diameter necessary for mounting the sleeve on the support cylinder and the permanent fixing of the sleeve on the support cylinder combined with the forces generated by the sheet of product which passes over the sleeve lead to fatigue due to the alternating bending of the sleeve and its rupture. .

L'invention vise une machine du type mentionné ci-dessus dans laquelle la durée de vie du manchon est plus grande. En outre, le montage du manchon est simplifié et il peut être réalisé avec de plus grandes tolérances de diamètre intérieur.  The invention relates to a machine of the type mentioned above in which the life of the sleeve is greater. In addition, the mounting of the sleeve is simplified and it can be carried out with greater tolerances of internal diameter.

Suivant l'invention, le manchon est monté avec possibilité de tourner librement sur le cylindre support et les moyens destinés à empêcher le manchon de se déplacer le long du cylindre support sont des moyens limitant le déplacement du manchon le long du cylindre support, mais autorisant la 35 rotation du manchon sur le cylindre support. Ces derniers moyens peuvent être notamment deux butées radiales fixées au cylindre support de part et d'autre du manchon.  According to the invention, the sleeve is mounted with the possibility of turning freely on the support cylinder and the means intended to prevent the sleeve from moving along the support cylinder are means limiting the movement of the sleeve along the support cylinder, but allowing the rotation of the sleeve on the support cylinder. These latter means may in particular be two radial stops fixed to the support cylinder on either side of the sleeve.

Le manchon est entraîné par la conjugaison de deux phénomènes principaux: - un film d'eau se crée entre le manchon et le cylindre support et donne une lubrification entre ces deux éléments.  The sleeve is driven by the combination of two main phenomena: - a film of water is created between the sleeve and the support cylinder and gives lubrication between these two elements.

- la dépression à l'intérieur de la caisse se transmet par la fente et plaque le manchon sur le cylindre support en créant un point de pincement, 10 ce phénomène étant amplifié par la tension de la nappe. Le manchon conserve un point de contact fixe au point de pincement et roule sur le diamètre extérieur du cylindre support. Le passage de la nappe sur le manchon renforce ce contact.  the vacuum inside the box is transmitted through the slot and presses the sleeve on the support cylinder by creating a pinch point, this phenomenon being amplified by the tension of the sheet. The sleeve maintains a fixed point of contact at the pinch point and rolls over the outside diameter of the support cylinder. The passage of the sheet over the sleeve reinforces this contact.

On a obtenu de bons résultats lorsque le diamètre du cylindre support est compris entre 200 et I 000 mm et lorsque le diamètre du manchon est compris entre 200 et I 000 mm avec un jeu entre le manchon et le cylindre support allant de 0,5 à 3 mm. La dépression dans la caisse cylindrique est en général comprise entre 50 et 500 millibar.  Good results have been obtained when the diameter of the support cylinder is between 200 and 1,000 mm and when the diameter of the sleeve is between 200 and 1,000 mm with a clearance between the sleeve and the support cylinder ranging from 0.5 to 3 mm. The depression in the cylindrical body is generally between 50 and 500 millibar.

Il peut y avoir dans la caisse cylindrique en général de 1 à 4 fentes qui s'étendent sur toute une génératrice. La largeur des fentes aspirantes est en général comprise entre 5 et 30 mm.  There can be in the cylindrical box in general from 1 to 4 slots which extend over an entire generator. The width of the suction slots is generally between 5 and 30 mm.

Le cylindre support peut être un cylindre en nid d'abeille, en tôle perforée roulée en tube perforé et le cylindre support peut être en acier inoxydable, en bronze, en matière plastique.  The support cylinder can be a honeycomb cylinder, made of perforated sheet metal rolled into a perforated tube and the support cylinder can be made of stainless steel, bronze, plastic.

Le manchon a un pourcentage de trous qui représente de 3 % à 25 % 30 de sa surface latérale. Il a une structure microperforée et peut être constitué d'un tube mince perforé recouvert d'une toile grossière de drainage et d'une toile fine de surface.  The sleeve has a percentage of holes which represents from 3% to 25% of its lateral surface. It has a microperforated structure and can consist of a thin perforated tube covered with a coarse drainage fabric and a fine surface fabric.

Aux dessins annexés, donnés uniquement à titre d'exemple: - La figure 1 est une vue en perspective d'une machine suivant l'invention.  In the accompanying drawings, given only by way of example: - Figure 1 is a perspective view of a machine according to the invention.

- La figure 2 est une vue en coupe suivant un plan perpendiculairement à l'axe de la caisse cylindrique d'une autre machine suivant l'invention, et - La figure 3.est une vue en coupe suivant la ligne m- mI de la figure 2.  - Figure 2 is a sectional view along a plane perpendicular to the axis of the cylindrical body of another machine according to the invention, and - Figure 3.is a sectional view along the line m- mI of the figure 2.

La machine représentée schématiquement à la figure 1 comprend une caisse cylindrique 1. Un dispositif 2 d'entraînement à courroie 3. Un cylindre support 4 perforé entoure la caisse 1 en étant à distance de celle-ci et est entraîné en rotation sur la courroie 3. Un manchon 5 microtroué est enfilé sur le cylindre support 4. Un tuyau 7 d'extraction de l'air et de l'eau est relié à une 10 pompe à vide et permet de mettre l'intérieur de la caisse 1 en dépression.  The machine shown diagrammatically in FIG. 1 comprises a cylindrical box 1. A device 2 for driving the belt 3. A perforated support cylinder 4 surrounds the box 1 at a distance from it and is rotated on the belt 3 A micro-hole sleeve 5 is threaded onto the support cylinder 4. A pipe 7 for extracting air and water is connected to a vacuum pump and makes it possible to place the interior of the body 1 under vacuum.

Deux injecteurs 8 et 9 envoient respectivement des jets d'eau souspression en direction de la face extérieure du manchon 5.  Two injectors 8 and 9 respectively send jets of pressurized water towards the outer face of the sleeve 5.

On voit aux figures 2 et 3 que la caisse 1 a une fente 10 s'étendant 15 suivant sa génératrice inférieure. Le manchon 5 est monté libre en rotation sur le cylindre support 4. La face intérieure du manchon 5 peut rouler librement sur la face extérieure du cylindre support 4. Mais comme représenté à la figure 3, des butées 12 fixées au cylindre support 4 empêchent le manchon 5 de se déplacer le long du cylindre support 4. Un rouleau 13 permet de faire 20 passer une nappe N de non tissé à consolider sur la face extérieure du manchon 5 à l'endroit o y sont dirigés les jets d'eau.  We see in Figures 2 and 3 that the body 1 has a slot 10 extending 15 along its lower generatrix. The sleeve 5 is mounted to rotate freely on the support cylinder 4. The interior face of the sleeve 5 can roll freely on the exterior face of the support cylinder 4. But as shown in FIG. 3, stops 12 fixed to the support cylinder 4 prevent the sleeve 5 to move along the support cylinder 4. A roller 13 makes it possible to pass a sheet N of nonwoven to be consolidated on the outside face of the sleeve 5 at the place where the water jets are directed.

Par la liberté de mouvement du manchon 5, celui-ci n'est pas soumis comme auparavant à des efforts supplémentaires tenant aux moyens qui le 25 maintenaient solidaire en rotation du cylindre support 4. On constate qu'ainsi le manchon dure plus longtemps.  By the freedom of movement of the sleeve 5, the latter is not subjected as before to additional forces relating to the means which kept it integral in rotation with the support cylinder 4. It can be seen that the sleeve therefore lasts longer.

Claims (2)

REVENDICATIONS 1. Machine comprenant: - une caisse (1) cylindrique, qui a au moins une fente (10) s'étendant longitudinalement et dont l'intérieur communique avec des moyens (2) de création d'une dépression, - des moyens (2) d'entraînement de la caisse (1) en rotation par rapport à son axe (XX'), un cylindre support (4) perforé qui entoure la caisse (1) à distance de celle-ci et qui en est solidaire en rotation, - un manchon (5) microtroué, enfilé sur le cylindre support (4), - des moyens (12) destinés à empêcher le manchon (2) de se déplacer le long du cylindre support (4), - un injecteur (8, 9) destiné à projeter des jets d'eau sous pression en direction de la face extérieure du manchon (2), et - des moyens (13) pour faire passer une nappe (N) sur la face extérieure du manchon (2) à l'endroit o y sont dirigés les jets d'eau, caractérisée en ce que - le manchon (2) est monté avec possibilité de tourner librement sur le 20 cylindre support (4), et, - les moyens (12) destinés à empêcher le manchon (2) de se déplacer le long du cylindre support (4) sont des moyens limitant le déplacement du manchon (2) le long du cylindre support (4), mais autorisant la rotation du manchon (2) sur le cylindre support (4).  1. Machine comprising: - a cylindrical case (1), which has at least one slot (10) extending longitudinally and the interior of which communicates with means (2) for creating a vacuum, - means (2 ) for driving the body (1) in rotation with respect to its axis (XX '), a perforated support cylinder (4) which surrounds the body (1) at a distance from the latter and which is integral therewith in rotation, - a micro-hole sleeve (5) threaded onto the support cylinder (4), - means (12) intended to prevent the sleeve (2) from moving along the support cylinder (4), - an injector (8, 9 ) intended to spray pressurized water jets towards the outer face of the sleeve (2), and - means (13) for passing a sheet (N) over the outer face of the sleeve (2) to the place where the water jets are directed, characterized in that - the sleeve (2) is mounted with the possibility of turning freely on the support cylinder (4), and, - the means (12) intended preventing the sleeve (2) from moving along the support cylinder (4) are means limiting the movement of the sleeve (2) along the support cylinder (4), but allowing the rotation of the sleeve (2) on the cylinder support (4). 2. Machine suivant la revendication 1, caractérisée en ce que les moyens destinés à empêcher le manchon de se déplacer le long du cylindre support comprennent deux butées radiales fixées au cylindre support de part et d'autre du manchon.  2. Machine according to claim 1, characterized in that the means intended to prevent the sleeve from moving along the support cylinder comprise two radial stops fixed to the support cylinder on either side of the sleeve.
FR0307335A 2003-06-18 2003-06-18 MACHINE FOR PROJECTING WATER JETS ON A TABLET Expired - Fee Related FR2856413B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0307335A FR2856413B1 (en) 2003-06-18 2003-06-18 MACHINE FOR PROJECTING WATER JETS ON A TABLET
EP04291113A EP1489213A1 (en) 2003-06-18 2004-04-30 Machine for the impingement of jets of water onto a web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0307335A FR2856413B1 (en) 2003-06-18 2003-06-18 MACHINE FOR PROJECTING WATER JETS ON A TABLET

Publications (2)

Publication Number Publication Date
FR2856413A1 true FR2856413A1 (en) 2004-12-24
FR2856413B1 FR2856413B1 (en) 2005-08-19

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ID=33396795

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Application Number Title Priority Date Filing Date
FR0307335A Expired - Fee Related FR2856413B1 (en) 2003-06-18 2003-06-18 MACHINE FOR PROJECTING WATER JETS ON A TABLET

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EP (1) EP1489213A1 (en)
FR (1) FR2856413B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007757A1 (en) * 2005-02-18 2006-08-31 Fleissner Gmbh Device for patterning and solidifying a web with exchangeable pattern shell
IL177788A (en) * 2006-08-30 2011-03-31 N R Spuntech Ind Ltd Cylindrical suction box assembly
CN103541154A (en) * 2013-10-30 2014-01-29 绍兴县庄洁无纺材料有限公司 Drum device allowing initiative transfer of wet fiber webs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679535A (en) * 1970-03-24 1972-07-25 Johnson & Johnson Nonwoven fabric comprising discontinuous groups of small holes connected by ribbons defining large holes
US5768756A (en) * 1995-05-17 1998-06-23 Icbt Perfojet Process and device for manufacturing a non-woven unpatterned textile
FR2799214A1 (en) * 1999-10-05 2001-04-06 Icbt Perfojet Sa Manufacture of non-woven fabric, for absorbent uses e.g. wet wipes, comprises water jets to bind fibres together

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2205503C3 (en) * 1972-02-05 1974-05-30 Kuesters, Eduard, 4150 Krefeld Device for the continuous pressure treatment of webs
JP2000160461A (en) * 1998-11-27 2000-06-13 Takayuki Mende Water flow-interlacing device in production unit of non- woven fabric and production of non-woven fabric by using the device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679535A (en) * 1970-03-24 1972-07-25 Johnson & Johnson Nonwoven fabric comprising discontinuous groups of small holes connected by ribbons defining large holes
US5768756A (en) * 1995-05-17 1998-06-23 Icbt Perfojet Process and device for manufacturing a non-woven unpatterned textile
FR2799214A1 (en) * 1999-10-05 2001-04-06 Icbt Perfojet Sa Manufacture of non-woven fabric, for absorbent uses e.g. wet wipes, comprises water jets to bind fibres together

Also Published As

Publication number Publication date
EP1489213A1 (en) 2004-12-22
FR2856413B1 (en) 2005-08-19

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