EP4118013A1 - Belt for a conveyor, having perforated zones - Google Patents

Belt for a conveyor, having perforated zones

Info

Publication number
EP4118013A1
EP4118013A1 EP21709721.1A EP21709721A EP4118013A1 EP 4118013 A1 EP4118013 A1 EP 4118013A1 EP 21709721 A EP21709721 A EP 21709721A EP 4118013 A1 EP4118013 A1 EP 4118013A1
Authority
EP
European Patent Office
Prior art keywords
perforated
strip
conveyor
zone
solid
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.)
Pending
Application number
EP21709721.1A
Other languages
German (de)
French (fr)
Inventor
Philippe Ramirez
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.)
Bricq SAS
Original Assignee
Bricq SAS
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 Bricq SAS filed Critical Bricq SAS
Publication of EP4118013A1 publication Critical patent/EP4118013A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/241—Suction devices
    • B65H29/242—Suction bands or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/54—Endless load-carriers made of interwoven ropes or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/2027—Suction retaining means
    • B65G21/2036—Suction retaining means for retaining the load on the load-carrying surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/27—Belts material used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • B65H2406/322—Suction distributing means
    • B65H2406/3223—Suction distributing means details of the openings in the belt, e.g. shape, distribution
    • B65H2406/32231—Suction distributing means details of the openings in the belt, e.g. shape, distribution belt with alternated perforated and non perforated sections in transport direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • TITLE Belt for conveyor with openwork zones
  • the present invention relates to a conveyor belt.
  • Such a belt is used in a belt conveyor.
  • the belt is, for example, driven into the conveyor using at least one drive cylinder
  • Such a strip is, for example, used in a machine intended for the manufacture of corrugated cardboard.
  • FR 3 046 997 A1 the corrugated cardboard is driven between two conveyor belts in the pulling part.
  • the cardboard is thus pulled by a lower band and an upper band.
  • An object of the invention is therefore to allow the simplification of such a machine suitable for driving the carton.
  • the invention relates to a conveyor belt of the aforementioned type, in which the belt comprises at least one perforated zone, the strip having openings in the or each perforated zone so that the belt is permeable to air in the openwork area.
  • the presence of at least one perforated zone in the strip offers the possibility of providing a suction or vacuum table on one side of the strip so as to press the object, such as cardboard, which conveys on the opposite side. of the tape against the tape. As the object is pressed against the belt, it is driven by the belt with a good hold.
  • the tape according to the invention may include one or more of the following characteristics, taken alone or in any technically possible combination:
  • the strip comprises at least one solid zone, the strip having no opening in the or each solid zone;
  • the belt comprises a plurality of perforated areas and a plurality of solid areas, the belt being intended to be moved in a direction of travel in a conveyor, the perforated areas and the solid areas being placed alternately along of a transverse direction, the transverse direction being arranged to be perpendicular to the direction of movement;
  • the band comprises a woven structure, the woven structure extending over the entire band;
  • the strip has a drive face designed to cooperate with a drive device and a conveyor face designed to cooperate with an object to be moved, the woven structure having a treatment to increase the coefficient of friction, more particularly being coated or impregnated with a silicone-based product, at least on the face of the conveyor throughout the or each solid zone;
  • the openwork woven structure is free of silicone or silicone-based product on the drive face;
  • the woven structure has a tighter weave in the solid zone or zones than in the perforated zone or zones;
  • the woven structure comprises main warp yarns and secondary warp yarns, the main warp yarns being woven similarly in the solid area (s) and in the perforated area (s), the distribution density of the secondary warp yarns being strictly lower in the perforated zone (s) than in the solid zone (s);
  • the main warp threads are made of synthetic materials and / or natural materials;
  • the strip is devoid of silicone or silicone-based product in the or each perforated zone.
  • Figure 1 is a schematic view of a conveyor
  • Figure 2 is a schematic view of part of a conveyor comprising a belt according to one embodiment of the invention.
  • Figure 3 is a schematic top view of a strip according to one embodiment of the invention.
  • FIG 4 is a schematic view of zone IV of Figure 3.
  • a conveyor 10 for transporting an object 12 is shown in Figures 1 and 2.
  • the object 12 is, for example, cardboard, more particularly here corrugated cardboard.
  • the conveyor 10 here comprises a belt 14 according to the invention and at least one suction or vacuum table, called vacuum table 16.
  • the conveyor 10 further comprises a drive device 17 and advantageously a transmission device 18.
  • Band 14 is shown in Figures 3 and 4.
  • the strip 14 extends mainly in a longitudinal direction X and a transverse direction Y perpendicular to the longitudinal direction X.
  • the band 14 is designed to be moved in the conveyor in the longitudinal direction X.
  • the strip 14 has a thickness in a direction perpendicular to the longitudinal X and transverse Y directions.
  • Band 14 is flexible.
  • the strip 14 is, for example, adapted to wrap partially around a drive cylinder.
  • the strip 14 has a substantially rectangular shape, here having sides in the longitudinal direction X and sides in the transverse direction Y.
  • the strip 14 has a drive face 20 provided to cooperate with the drive device 17 and a conveyor face 22 provided to cooperate with the object 12.
  • the strip 14 comprises at least one perforated zone 24 and, in the embodiment shown, at least one solid zone 26.
  • the strip 14 comprises a plurality of perforated zones and a plurality of solid zones.
  • the ratio of the total area of all solid areas to the total area of all openwork areas is between 1% and 50%.
  • the perforated areas 24 and the solid areas 26 are placed alternately along the transverse direction Y.
  • the perforated areas 24 and the solid areas 26 each have a respective general shape.
  • each of the perforated areas 24 and each of the solid areas 26 has a generally rectangular shape.
  • One side of each generally rectangular shape here extends in the longitudinal direction X and another side extends in the transverse direction Y.
  • Each of the perforated areas 24 and each of the solid areas 26 extends over the entire length of the strip 14 in the longitudinal direction X.
  • the perforated zones 24 have the same dimension between them in the transverse direction Y.
  • the solid areas 26 have the same dimension between them in the transverse direction Y.
  • the ratio between the dimension along the transverse direction Y, called the width, of a solid zone over the width of a perforated zone is between 1% and 50%.
  • a solid zone is arranged at each of the ends of the strip in the transverse direction Y.
  • the strip 14 has openings 28 in the or each perforated area 24, so that the strip 14 is permeable to air in the perforated area 24.
  • the ratio of the total area of the openings 28 of a perforated zone to the total area of the corresponding perforated zone 24 is between 30% and 80%.
  • the strip 14 is configured so that a pressure difference between the drive face 20 and the conveyor face 22 at the perforated zone 24 causes the application of an application force F to the conveyor face 22. .
  • the pressure here is greater in the environment of the conveyor face 22 than in the environment of the drive face 20, so that the application force F is oriented from the conveyor face 22 towards the face of training 20.
  • the openings further allow permeability of the strip, in particular to allow the evacuation of material such as liquid, particularly if the object 12 is cardboard being dried.
  • the openings in the or each perforated zone have a dimension of between 0.1 mm and 5 mm.
  • the openings are distributed in the perforated area with a density between 30% and 80%.
  • the strip 14 is devoid of openings in the or each solid zone 26.
  • the strip 14 is impermeable to air in the or each solid area 26.
  • the strip 14 comprises a woven structure 30.
  • the woven structure 30 extends over the entire strip, more particularly along the entire surface of the strip in the longitudinal X and transverse Y directions.
  • the woven structure 30 has a tighter weave in the solid zone or zones 26 than in the perforated zone or zones 24.
  • the woven structure 30 comprises warp threads 32, 34, more particularly main warp threads 32 and secondary warp threads 34, and weft threads 36.
  • the weft threads 36 extend over the entire surface of the woven structure 30 and are woven evenly over the entire surface.
  • Each weft thread 36 is here monofilament.
  • They are, for example, made of polyester.
  • the main warp yarns 32 extend over the entire surface of the woven structure 30 and are woven evenly over the entire surface.
  • the main warp yarns 32 are woven similarly in the solid area (s) 26 and in the perforated area (s) 24.
  • the main warp yarns 32 are made of synthetic materials and / or natural materials.
  • Each main warp yarn 32 is monofilament.
  • They are, for example, made of polyester.
  • the main warp threads 32 and the weft threads 36 delimit spaces 38 between them.
  • the distribution density of the secondary warp yarns 34 is strictly lower in the perforated zone or zones 24 than in the solid zone or zones 26.
  • the woven structure in the perforated zones 24 is devoid of secondary warp yarns 34.
  • the distribution density of the secondary warp yarns 34 is then zero.
  • the openings 28 of the perforated zones correspond here to the spaces delimited between the main warp yarns 32 and the weft yarns 36.
  • the secondary warp threads 34 fill the spaces 38 delimited by the weaving between the weft threads 36 and the main warp threads 32 in the solid areas.
  • Each 34 secondary warp yarn is multi-filament
  • the secondary warp threads 34 are, for example, made of synthetic and / or natural material.
  • the woven structure in the perforated areas 24 is identical to the woven structure in the solid areas 26, except that the woven structure is devoid of secondary warp yarns 34 in the perforated areas.
  • the woven structure in the solid areas 26 corresponds, for example, to the BRICQ-SPEED ⁇ fabric marketed by BRICQ ⁇ .
  • a treatment is applied to the woven structure 30 at least on the conveyor face 22 throughout the or each solid area 26, the treatment allowing the coefficient of friction to be increased.
  • the woven structure 30 is, for example, coated or impregnated with a silicone-based product 40 at least on the conveyor face 22 throughout the or each solid zone 26.
  • Such a product 40 comprises, for example, at least 10% silicone
  • Such a product 40 comprises, for example, a silicone base and crosslinking agents, among others.
  • the woven structure 30 is coated or impregnated with a silicone-based product 40 over the entire thickness of the strip 14 except for the drive face 20. .
  • the drive face 20 is devoid of any treatment intended to increase the coefficient of friction, such as a coating of silicone-based product.
  • a treatment is, for example, applied to the drive face 20 to reduce its coefficient of friction.
  • the strip 14 is furthermore devoid of silicone or silicone-based product in the or each perforated zone 24.
  • this allows air to circulate in the openings 28.
  • the strip 14 is arranged on the driving device 17 so as to be driven in a direction of movement.
  • the drive device 17 here comprises at least one drive cylinder 42.
  • the drive device 17 further comprises a tension cylinder 44.
  • the cylinders 42, 44 are arranged on either side of the conveyor 10 according to the direction of travel.
  • the drive cylinder 42 is arranged at a downstream end of the conveyor 10 and the tension cylinder 44 at an upstream end.
  • the drive cylinder 42 is adapted to be rotated about an axis perpendicular to the direction of movement, for example, by a motor.
  • Band 14 surrounds and connects drive cylinder 42 and tension cylinder 44.
  • the longitudinal direction X of the strip is arranged parallel to the direction of movement.
  • the strip 14 then presents a portion of the convoy 46, the portion of the convoy 46 corresponding to the surface of the strip 14 at a given moment which can be used for the convoy of an object 12.
  • An object 12 resting on the convoy face 22 of the convoy portion 46 is here located above the convoy face 22 on which it rests along the vertical of the place.
  • the conveyor 10 here comprises a plurality of vacuum tables 16 arranged along the direction of travel.
  • the vacuum tables 16 are arranged facing the conveyor portion 46 of the strip 14.
  • the vacuum tables 16 are arranged at regular intervals.
  • the intervals between the bands are, for example, between 5mm and 800mm.
  • the vacuum tables 16 are arranged symmetrically with respect to the center of the table in the longitudinal direction X, the axis of symmetry being parallel to the transverse direction Y.
  • Each vacuum table comprises at least one vacuum surface 48 arranged facing the strip 14, more particularly the portion of the conveyor 46.
  • Each vacuum table 16 extends here over the whole of the dimension in the transverse direction Y of the strip 14.
  • the conveyor 10 comprises a plurality of vacuum tables 16 along the transverse direction Y of the belt 14, the vacuum tables 16 extending facing the perforated areas 24.
  • Each vacuum table generates a local air depression at the vacuum surface 48.
  • the conveyor 10 here comprises a plurality of transmission devices 18 arranged along the direction of travel.
  • the transmission devices 18 are arranged opposite the portion of the conveyor 46 of the strip 14.
  • the transmission devices 18 are arranged between the vacuum tables 16.
  • the transmission devices 18 are, for example, rollers.
  • the transmission devices 18 are able to circulate the strip 14 on the conveyor 10 in the direction of movement.
  • the conveyor 10 further comprises at least one heating table facing the portion of the conveyor 46 of the strip 14.
  • the conveyor does not have a second conveyor belt arranged facing the belt 14 opposite to the object 12.
  • the strip 14 is driven in the direction of travel by the drive device 17.
  • the vacuum table or tables 16 locally generate depressions.
  • each vacuum table 16 causes, thanks to the openings 28, a force for clamping any object 12 on the conveyor face 22 facing the vacuum table 16.
  • the object 12 here is cardboard extending over the entire convoy portion 46 of the strip 14 along the direction of travel.
  • the cardboard is therefore kept pressed against the face of the conveyor 22 facing the perforated zones over the whole of its movement on the portion of the conveyor 46, without requiring the presence of a second conveyor belt facing the strip in order to clamp the object between the two bands.
  • the object 12 here has a face extending against the convoy face 22 and an opposite face.
  • the opposite side is here exposed to the surrounding air.
  • the exposed side allows for improved moisture evaporation.
  • High humidity cardboard is, for example, corrugated cardboard comprising two flat sheets of paper between which is arranged a corrugated sheet of paper which has just been glued together.
  • the heat table if fitted, dries the cardboard to increase the rate of its decrease in humidity.
  • a band according to the invention therefore makes it possible, on the one hand, to offer the possibility of holding an object on the convoy face by applying a vacuum at the level of the drive face and, on the other hand, to 'improve the evaporation of any excess moisture from an object on the convoy face, the object not being clamped between two conveyor belts but having an exposed face.

Abstract

The invention relates to a belt for a conveyor. The belt comprises at least one perforated zone (24), the belt (14) having openings (28) in the or each perforated zone (24) so that the belt is air-permeable in the perforated zone (24).

Description

TITRE : Bande pour convoyeur à zones ajourées TITLE: Belt for conveyor with openwork zones
La présente invention concerne une bande pour convoyeur. The present invention relates to a conveyor belt.
Une telle bande est utilisée dans un convoyeur à bande. La bande est, par exemple, entraînée dans le convoyeur à l’aide d’au moins un cylindre d’entraînement Such a belt is used in a belt conveyor. The belt is, for example, driven into the conveyor using at least one drive cylinder
Une telle bande est, par exemple, utilisée dans une machine destinée à la fabrication de carton ondulé. Such a strip is, for example, used in a machine intended for the manufacture of corrugated cardboard.
Dans FR 3 046 997 A1 , le carton ondulé est entraîné entre deux bandes transporteuses dans la partie de traction. Le carton est ainsi tiré par une bande inférieure et une bande supérieure. In FR 3 046 997 A1, the corrugated cardboard is driven between two conveyor belts in the pulling part. The cardboard is thus pulled by a lower band and an upper band.
La présence de deux bandes transporteuses permet de plaquer le carton entre les deux bandes, de manière notamment à maintenir le carton en contact avec les bandes pour faciliter le transport du carton. The presence of two conveyor belts makes it possible to press the cardboard between the two belts, so as in particular to keep the cardboard in contact with the bands to facilitate transport of the cardboard.
Cependant, les deux bandes transporteuses sont encombrantes. However, both conveyor belts are bulky.
La présence de deux transporteuses représente en outre un coût de production de la machine supérieur et une machine plus complexe présentant une maintenance plus importante. The presence of two conveyors also represents a higher production cost of the machine and a more complex machine requiring greater maintenance.
Un objet de l’invention est donc de permettre la simplification d’une telle machine adaptée pour entraîner le carton. An object of the invention is therefore to allow the simplification of such a machine suitable for driving the carton.
Pour ce faire, l’invention a pour objet une bande pour convoyeur du type précité, dans laquelle la bande comprend au moins une zone ajourée, la bande présentant des ouvertures dans la ou chaque zone ajourée de sorte que la bande est perméable à l’air dans la zone ajourée. To do this, the invention relates to a conveyor belt of the aforementioned type, in which the belt comprises at least one perforated zone, the strip having openings in the or each perforated zone so that the belt is permeable to air in the openwork area.
La présence d’au moins une zone ajourée dans la bande offre la possibilité de prévoir une table d’aspiration ou de dépression d’un côté de la bande de manière à plaquer l’objet, tel du carton, qui convoie sur le côté opposé de la bande contre la bande. L’objet étant plaqué contre la bande, il est entraîné par la bande avec un bon maintien. The presence of at least one perforated zone in the strip offers the possibility of providing a suction or vacuum table on one side of the strip so as to press the object, such as cardboard, which conveys on the opposite side. of the tape against the tape. As the object is pressed against the belt, it is driven by the belt with a good hold.
La bande selon l’invention peut comprendre l’une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toute combinaison techniquement possible : The tape according to the invention may include one or more of the following characteristics, taken alone or in any technically possible combination:
- la bande comprend au moins une zone pleine, la bande étant dépourvue d’ouverture dans la ou chaque zone pleine ; - the strip comprises at least one solid zone, the strip having no opening in the or each solid zone;
- la bande comprend une pluralité de zones ajourées et une pluralité de zones pleines, la bande étant prévue pour être déplacée dans une direction de déplacement dans un convoyeur, les zones ajourées et les zones pleines étant placées alternativement le long d’une direction transversale, la direction transversale étant agencée pour être perpendiculaire à la direction de déplacement ; - the belt comprises a plurality of perforated areas and a plurality of solid areas, the belt being intended to be moved in a direction of travel in a conveyor, the perforated areas and the solid areas being placed alternately along of a transverse direction, the transverse direction being arranged to be perpendicular to the direction of movement;
- la bande comprend une structure tissée, la structure tissée s’étendant sur l’ensemble de la bande ; - the band comprises a woven structure, the woven structure extending over the entire band;
- la bande présente une face d’entraînement prévue pour coopérer avec un dispositif d’entraînement et une face de convoi prévue pour coopérer avec un objet à déplacer, la structure tissée présentant un traitement pour augmenter le coefficient de friction, plus particulièrement étant enduit ou imprégné avec un produit à base silicone, au moins sur la face de convoi dans l’ensemble de la ou chaque zone pleine ; - the strip has a drive face designed to cooperate with a drive device and a conveyor face designed to cooperate with an object to be moved, the woven structure having a treatment to increase the coefficient of friction, more particularly being coated or impregnated with a silicone-based product, at least on the face of the conveyor throughout the or each solid zone;
- la structure tissée ajourée est dépourvue de silicone ou de produit à base silicone sur la face d’entraînement ; - the openwork woven structure is free of silicone or silicone-based product on the drive face;
- la structure tissée présente un tissage plus serré dans la ou les zones pleines que dans la ou les zones ajourées ; the woven structure has a tighter weave in the solid zone or zones than in the perforated zone or zones;
- la structure tissée comprend des fils de chaîne principaux et des fils de chaîne secondaires, les fils de chaîne principaux étant tissés similairement dans la ou les zones pleines et dans la ou les zones ajourées, la densité de distribution des fils de chaîne secondaires étant strictement inférieure dans la ou les zones ajourées que dans la ou les zones pleines ; - the woven structure comprises main warp yarns and secondary warp yarns, the main warp yarns being woven similarly in the solid area (s) and in the perforated area (s), the distribution density of the secondary warp yarns being strictly lower in the perforated zone (s) than in the solid zone (s);
- les fils de chaîne principaux sont en matières synthétiques et/ou matières naturelles ; - the main warp threads are made of synthetic materials and / or natural materials;
- la bande est dépourvue de silicone ou de produit à base silicone dans la ou chaque zone ajourée. - The strip is devoid of silicone or silicone-based product in the or each perforated zone.
L’invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d’exemple et faite en référence aux figures annexées parmi lesquelles : The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended figures, among which:
[Fig 1] la figure 1 est une vue schématique d’un convoyeur, [Fig 1] Figure 1 is a schematic view of a conveyor,
[Fig 2] la figure 2 est une vue schématique d’une partie d’un convoyeur comprenant une bande selon un mode de réalisation de l’invention, [Fig 2] Figure 2 is a schematic view of part of a conveyor comprising a belt according to one embodiment of the invention,
[Fig 3] la figure 3 est une vue schématique de dessus d’une bande selon un mode de réalisation de l’invention, et [Fig 3] Figure 3 is a schematic top view of a strip according to one embodiment of the invention, and
[Fig 4] la figure 4 est une vue schématique de la zone IV de la figure 3. [Fig 4] Figure 4 is a schematic view of zone IV of Figure 3.
Un convoyeur 10 destiné au transport d’un objet 12 est représenté sur les figures 1 et 2. L’objet 12 est, par exemple, du carton, plus particulièrement ici du carton ondulé. A conveyor 10 for transporting an object 12 is shown in Figures 1 and 2. The object 12 is, for example, cardboard, more particularly here corrugated cardboard.
Le convoyeur 10 comprend ici une bande 14 selon l’invention et au moins une table d’aspiration ou de dépression, dite table à vide 16. The conveyor 10 here comprises a belt 14 according to the invention and at least one suction or vacuum table, called vacuum table 16.
Le convoyeur 10 comprend en outre un dispositif d’entraînement 17 et avantageusement un dispositif de transmission 18. La bande 14 est représentée sur les figures 3 et 4. The conveyor 10 further comprises a drive device 17 and advantageously a transmission device 18. Band 14 is shown in Figures 3 and 4.
La bande 14 s’étend principalement selon une direction longitudinale X et une direction transversale Y perpendiculaire à la direction longitudinale X. The strip 14 extends mainly in a longitudinal direction X and a transverse direction Y perpendicular to the longitudinal direction X.
La bande 14 est prévue pour être déplacée dans le convoyeur selon la direction longitudinale X. The band 14 is designed to be moved in the conveyor in the longitudinal direction X.
La bande 14 présente une épaisseur selon une direction perpendiculaire aux directions longitudinale X et transversale Y. The strip 14 has a thickness in a direction perpendicular to the longitudinal X and transverse Y directions.
La bande 14 est flexible. La bande 14 est, par exemple, adaptée pour s’enrouler partiellement autour d’un cylindre d’entraînement. Band 14 is flexible. The strip 14 is, for example, adapted to wrap partially around a drive cylinder.
La bande 14 présente sensiblement une forme rectangulaire, présentant ici des côtés selon la direction longitudinale X et des côtés selon la direction transversale Y. The strip 14 has a substantially rectangular shape, here having sides in the longitudinal direction X and sides in the transverse direction Y.
La bande 14 présente une face d’entraînement 20 prévue pour coopérer avec le dispositif d’entraînement 17 et une face de convoi 22 prévue pour coopérer avec l’objet 12. The strip 14 has a drive face 20 provided to cooperate with the drive device 17 and a conveyor face 22 provided to cooperate with the object 12.
La bande 14 comprend au moins une zone ajourée 24 et, dans le mode de réalisation représenté, au moins une zone pleine 26. The strip 14 comprises at least one perforated zone 24 and, in the embodiment shown, at least one solid zone 26.
Plus particulièrement, la bande 14 comprend une pluralité de zones ajourées et une pluralité de zones pleines. More particularly, the strip 14 comprises a plurality of perforated zones and a plurality of solid zones.
Le rapport entre la surface totale de l’ensemble des zones pleines sur la surface totale de l’ensemble des zones ajourées est compris entre 1% et 50%. The ratio of the total area of all solid areas to the total area of all openwork areas is between 1% and 50%.
Les zones ajourées 24 et les zones pleines 26 sont placées alternativement le long de la direction transversale Y. The perforated areas 24 and the solid areas 26 are placed alternately along the transverse direction Y.
Les zones ajourées 24 et les zones pleines 26 présentent chacune une forme générale respective. The perforated areas 24 and the solid areas 26 each have a respective general shape.
Dans l’exemple représenté, chacune des zones ajourées 24 et chacune des zones pleines 26 présente une forme générale rectangulaire. Un côté de chaque forme générale rectangulaire s’étend ici selon la direction longitudinale X et un autre côté s’étend selon la direction transversale Y. In the example shown, each of the perforated areas 24 and each of the solid areas 26 has a generally rectangular shape. One side of each generally rectangular shape here extends in the longitudinal direction X and another side extends in the transverse direction Y.
Chacune des zones ajourées 24 et chacune des zones pleines 26 s’étend sur toute la longueur de la bande 14 selon la direction longitudinale X. Each of the perforated areas 24 and each of the solid areas 26 extends over the entire length of the strip 14 in the longitudinal direction X.
Les zones ajourées 24 présentent entre elles la même dimension selon la direction transversale Y. The perforated zones 24 have the same dimension between them in the transverse direction Y.
Les zones pleines 26 présentent entre elles la même dimension selon la direction transversale Y. The solid areas 26 have the same dimension between them in the transverse direction Y.
Le rapport entre la dimension selon la direction transversale Y, dite la largeur, d’une zone pleine sur la largeur d’une zone ajourée est comprise entre 1% et 50%. A chacune des extrémités de la bande selon la direction transversale Y, est agencée une zone pleine. The ratio between the dimension along the transverse direction Y, called the width, of a solid zone over the width of a perforated zone is between 1% and 50%. At each of the ends of the strip in the transverse direction Y, a solid zone is arranged.
La bande 14 présente des ouvertures 28 dans la ou chaque zone ajourée 24, de sorte que la bande 14 est perméable à l’air dans la zone ajourée 24. The strip 14 has openings 28 in the or each perforated area 24, so that the strip 14 is permeable to air in the perforated area 24.
Le rapport de la surface totale des ouvertures 28 d’une zone ajourée sur la surface totale de la zone ajourée correspondante 24 est comprise entre 30% et 80%. The ratio of the total area of the openings 28 of a perforated zone to the total area of the corresponding perforated zone 24 is between 30% and 80%.
La bande 14 est configurée pour qu’une différence de pression entre la face d’entraînement 20 et la face de convoi 22 au niveau de la zone ajourée 24 entraîne l’application d’une force d’application F à la face de convoi 22. The strip 14 is configured so that a pressure difference between the drive face 20 and the conveyor face 22 at the perforated zone 24 causes the application of an application force F to the conveyor face 22. .
La pression est ici supérieure dans l’environnement de la face de convoi 22 que dans l’environnement de la face d’entraînement 20, de sorte que la force d’application F est orientée de la face de convoi 22 vers la face d’entraînement 20. The pressure here is greater in the environment of the conveyor face 22 than in the environment of the drive face 20, so that the application force F is oriented from the conveyor face 22 towards the face of training 20.
Cela permet notamment de maintenir l’objet 12 contre la face de convoi 22 au niveau des zones ajourées 24. This makes it possible in particular to hold the object 12 against the face of the convoy 22 at the level of the perforated zones 24.
Les ouvertures permettent en outre une perméabilité de la bande, notamment pour permettre l’évacuation de matière telle que du liquide, en particulier si l’objet 12 est du carton en train de sécher. The openings further allow permeability of the strip, in particular to allow the evacuation of material such as liquid, particularly if the object 12 is cardboard being dried.
Les ouvertures dans la ou chaque zone ajourée présentent une dimension comprise entre 0,1 mm et 5 mm. The openings in the or each perforated zone have a dimension of between 0.1 mm and 5 mm.
Les ouvertures sont distribuées dans la zone ajourée avec une densité comprise entre 30% et 80%. The openings are distributed in the perforated area with a density between 30% and 80%.
La bande 14 est dépourvue d’ouvertures dans la ou chaque zone pleine 26. The strip 14 is devoid of openings in the or each solid zone 26.
La bande 14 est imperméable à l’air dans la ou chaque zone pleine 26. The strip 14 is impermeable to air in the or each solid area 26.
La bande 14 comprend une structure tissée 30. The strip 14 comprises a woven structure 30.
La structure tissée 30 s’étend sur l’ensemble de la bande, plus particulièrement selon toute la surface de la bande dans les directions longitudinale X et transversale Y. The woven structure 30 extends over the entire strip, more particularly along the entire surface of the strip in the longitudinal X and transverse Y directions.
La structure tissée 30 présente un tissage plus serré dans la ou les zones pleines 26 que dans la ou les zones ajourées 24. The woven structure 30 has a tighter weave in the solid zone or zones 26 than in the perforated zone or zones 24.
La structure tissée 30 comprend des fils de chaîne 32, 34, plus particulièrement des fils de chaîne principaux 32 et des fils de chaîne secondaires 34, et des fils de trame 36. The woven structure 30 comprises warp threads 32, 34, more particularly main warp threads 32 and secondary warp threads 34, and weft threads 36.
Les fils de trame 36 s’étendent sur l’ensemble de la surface de la structure tissée 30 et sont tissés de manière régulière sur l’ensemble de ladite surface. The weft threads 36 extend over the entire surface of the woven structure 30 and are woven evenly over the entire surface.
Chaque fil de trame 36 est ici monofilament. Each weft thread 36 is here monofilament.
Ils sont, par exemple, en polyester. They are, for example, made of polyester.
Les fils de chaîne principaux 32 s’étendent sur l’ensemble de la surface de la structure tissée 30 et sont tissés de manière régulière sur l’ensemble de ladite surface. Les fils de chaîne principaux 32 sont tissés similairement dans la ou les zones pleines 26 et dans la ou les zones ajourées 24. The main warp yarns 32 extend over the entire surface of the woven structure 30 and are woven evenly over the entire surface. The main warp yarns 32 are woven similarly in the solid area (s) 26 and in the perforated area (s) 24.
Les fils de chaîne principaux 32 sont en matières synthétiques et/ou matières naturelles. The main warp yarns 32 are made of synthetic materials and / or natural materials.
Chaque fil de chaîne principal 32 est monofilament. Each main warp yarn 32 is monofilament.
Ils sont, par exemple, en polyester. They are, for example, made of polyester.
Les fils de chaîne principaux 32 et les fils de trame 36 délimitent entre eux des espaces 38. The main warp threads 32 and the weft threads 36 delimit spaces 38 between them.
La densité de distribution des fils de chaîne secondaires 34 est strictement inférieure dans la ou les zones ajourées 24 que dans la ou les zones pleines 26. The distribution density of the secondary warp yarns 34 is strictly lower in the perforated zone or zones 24 than in the solid zone or zones 26.
Dans l’exemple représenté, la structure tissée dans les zones ajourées 24 est dépourvue de fils de chaîne secondaires 34. La densité de distribution des fils de chaîne secondaires 34 y est alors nulle. In the example shown, the woven structure in the perforated zones 24 is devoid of secondary warp yarns 34. The distribution density of the secondary warp yarns 34 is then zero.
Les ouvertures 28 des zones ajourées correspondent ici aux espaces délimités entre les fils de chaîne principaux 32 et les fils de trame 36. The openings 28 of the perforated zones correspond here to the spaces delimited between the main warp yarns 32 and the weft yarns 36.
Les fils de chaîne secondaires 34 remplissent les espaces 38 délimités par le tissage entre les fils de trame 36 et les fils de chaîne principaux 32 dans les zones pleines. The secondary warp threads 34 fill the spaces 38 delimited by the weaving between the weft threads 36 and the main warp threads 32 in the solid areas.
Chaque fil de chaîne secondaire 34 est multi-filament Each 34 secondary warp yarn is multi-filament
Les fils de chaîne secondaires 34 sont, par exemple, en matière synthétique et/ou naturelle. The secondary warp threads 34 are, for example, made of synthetic and / or natural material.
La structure tissée dans les zones ajourées 24 est identique à la structure tissée dans les zones pleines 26, à l’exception du fait que la structure tissée est dépourvue de fils de chaîne secondaires 34 dans les zones ajourées. The woven structure in the perforated areas 24 is identical to the woven structure in the solid areas 26, except that the woven structure is devoid of secondary warp yarns 34 in the perforated areas.
La structure tissée dans les zones pleines 26 correspond, par exemple, au tissu BRICQ-SPEED © commercialisé par BRICQ ©. The woven structure in the solid areas 26 corresponds, for example, to the BRICQ-SPEED © fabric marketed by BRICQ ©.
Un traitement est appliqué à la structure tissée 30 au moins sur la face de convoi 22 dans l’ensemble de la ou chaque zone pleine 26, le traitement permettant d’augmenter le coefficient de friction. A treatment is applied to the woven structure 30 at least on the conveyor face 22 throughout the or each solid area 26, the treatment allowing the coefficient of friction to be increased.
La structure tissée 30 est, par exemple, enduite ou imprégnée avec un produit à base silicone 40 au moins sur la face de convoi 22 dans l’ensemble de la ou chaque zone pleine 26. The woven structure 30 is, for example, coated or impregnated with a silicone-based product 40 at least on the conveyor face 22 throughout the or each solid zone 26.
Un tel produit 40 comprend, par exemple, au moins 10% de silicone Such a product 40 comprises, for example, at least 10% silicone
Un tel produit 40 comprend, par exemple, une base de silicone et des agents réticulant, entre autres. Such a product 40 comprises, for example, a silicone base and crosslinking agents, among others.
Cela permet notamment d’avoir une meilleure prise entre l’objet 12 et la face de convoi 22. Plus particulièrement, dans l’ensemble de la ou de chaque zone pleine 26, la structure tissée 30 est enduite ou imprégnée de produit à base silicone 40 sur toute l’épaisseur de la bande 14 à l’exception de la face d’entraînement 20. This makes it possible in particular to have a better grip between the object 12 and the convoy face 22. More particularly, throughout the or each solid zone 26, the woven structure 30 is coated or impregnated with a silicone-based product 40 over the entire thickness of the strip 14 except for the drive face 20. .
Cela permet notamment d’empêcher toute circulation d’air dans la zone pleine 26 sur son épaisseur, de sorte qu’une dépression d’air entre la face d’entraînement 20 et la face de convoi 22 entraîne une force de maintien contre la face de convoi 22 concentrée au niveau des zones ajourées, de sorte que la force est localement plus importante que si la bande était configurée telle que l’air au niveau des zones ajourées était susceptible de s’insérer dans l’épaisseur de zone(s) pleine(s). This makes it possible in particular to prevent any circulation of air in the solid zone 26 over its thickness, so that an air depression between the drive face 20 and the convoy face 22 causes a holding force against the face. of convoy 22 concentrated at the perforated zones, so that the force is locally greater than if the band were configured such that the air at the level of the perforated zones was capable of inserting into the thickness of the zone (s) full (s).
La face d’entraînement 20 est dépourvue de traitement prévu pour augmenter le coefficient de frottement, tel qu’une enduction de produit à base silicone. The drive face 20 is devoid of any treatment intended to increase the coefficient of friction, such as a coating of silicone-based product.
Un traitement est, par exemple, appliqué à la face d’entraînement 20 pour diminuer son coefficient de frottement. A treatment is, for example, applied to the drive face 20 to reduce its coefficient of friction.
Cela permet de limiter les frottements entre la face d’entrainement 20 de la bande 14 et le dispositif d’entraînement et/ou la table à vide et/ou le dispositif de transmission, et donc l’énergie nécessaire pour que la bande 14 soit entraînée par le dispositif d’entraînement. This makes it possible to limit the friction between the driving face 20 of the strip 14 and the driving device and / or the vacuum table and / or the transmission device, and therefore the energy required for the strip 14 to be driven by the drive device.
La bande 14 est en outre dépourvue de silicone ou de produit à base silicone dans la ou chaque zone ajourée 24. The strip 14 is furthermore devoid of silicone or silicone-based product in the or each perforated zone 24.
Cela permet notamment de laisser l’air circuler dans les ouvertures 28. In particular, this allows air to circulate in the openings 28.
La bande 14 est agencée sur le dispositif d’entraînement 17 de manière à être entraînée selon une direction de déplacement. The strip 14 is arranged on the driving device 17 so as to be driven in a direction of movement.
Le dispositif d’entraînement 17 comprend ici au moins un cylindre d’entraînement 42. The drive device 17 here comprises at least one drive cylinder 42.
Le dispositif d’entraînement 17 comprend en outre un cylindre tendeur 44. The drive device 17 further comprises a tension cylinder 44.
Les cylindres 42, 44 sont agencés de part et d’autre du convoyeur 10 selon la direction de déplacement. The cylinders 42, 44 are arranged on either side of the conveyor 10 according to the direction of travel.
Le cylindre d’entraînement 42 est agencé à une extrémité aval du convoyeur 10 et le cylindre tendeur 44 à une extrémité amont. The drive cylinder 42 is arranged at a downstream end of the conveyor 10 and the tension cylinder 44 at an upstream end.
Le cylindre d’entraînement 42 est apte à être entraîné en rotation selon un axe perpendiculaire à la direction de déplacement, par exemple, par un moteur. The drive cylinder 42 is adapted to be rotated about an axis perpendicular to the direction of movement, for example, by a motor.
La bande 14 entoure le cylindre d’entraînement 42 et le cylindre tendeur 44 et les relie. Band 14 surrounds and connects drive cylinder 42 and tension cylinder 44.
Entre le cylindre d’entraînement 42 et le cylindre tendeur 44, la direction longitudinale X de la bande est agencée parallèle à la direction de déplacement. La bande 14 présente alors une portion de convoi 46, la portion de convoi 46 correspondant à la surface de la bande 14 à un moment donné utilisable pour le convoi d’un objet 12. Between the drive cylinder 42 and the tension cylinder 44, the longitudinal direction X of the strip is arranged parallel to the direction of movement. The strip 14 then presents a portion of the convoy 46, the portion of the convoy 46 corresponding to the surface of the strip 14 at a given moment which can be used for the convoy of an object 12.
Un objet 12 reposant sur la face de convoi 22 de la portion de convoi 46 est ici situé au-dessus de la face de convoi 22 sur lequel il repose selon la verticale du lieu. An object 12 resting on the convoy face 22 of the convoy portion 46 is here located above the convoy face 22 on which it rests along the vertical of the place.
Le convoyeur 10 comprend ici une pluralité de tables à vide 16 agencées le long de la direction de déplacement. The conveyor 10 here comprises a plurality of vacuum tables 16 arranged along the direction of travel.
Plus particulièrement, les tables à vide 16 sont agencées en regard de la portion de convoi 46 de la bande 14. More particularly, the vacuum tables 16 are arranged facing the conveyor portion 46 of the strip 14.
Dans un mode de réalisation, les tables à vide 16 sont agencées à intervalle régulier. Les intervalles entre les bandes sont, par exemple, compris entre 5mm et 800mm. In one embodiment, the vacuum tables 16 are arranged at regular intervals. The intervals between the bands are, for example, between 5mm and 800mm.
Les tables à vide 16 sont agencés symétriquement par rapport au centre de la table selon la direction longitudinale X, l’axe de symétrie étant parallèle à la direction transversale Y. The vacuum tables 16 are arranged symmetrically with respect to the center of the table in the longitudinal direction X, the axis of symmetry being parallel to the transverse direction Y.
Chaque table à vide comprend au moins une surface de vide 48 agencée en regard de la bande 14, plus particulièrement de la portion de convoi 46. Each vacuum table comprises at least one vacuum surface 48 arranged facing the strip 14, more particularly the portion of the conveyor 46.
Chaque table à vide 16 s’étend ici sur l’ensemble de la dimension selon la direction transversale Y de la bande 14. Each vacuum table 16 extends here over the whole of the dimension in the transverse direction Y of the strip 14.
Alternativement, le convoyeur 10 comprend une pluralité de tables à vide 16 le long de la direction transversale Y de la bande 14, les tables à vide 16 s’étendant face aux zones ajourées 24. Alternatively, the conveyor 10 comprises a plurality of vacuum tables 16 along the transverse direction Y of the belt 14, the vacuum tables 16 extending facing the perforated areas 24.
Chaque table à vide génère une dépression locale d’air au niveau de la surface de vide 48. Each vacuum table generates a local air depression at the vacuum surface 48.
Le convoyeur 10 comprend ici une pluralité de dispositifs de transmission 18 agencés le long de la direction de déplacement. The conveyor 10 here comprises a plurality of transmission devices 18 arranged along the direction of travel.
Plus particulièrement, les dispositifs de transmission 18 sont agencés en regard de la portion de convoi 46 de la bande 14. More particularly, the transmission devices 18 are arranged opposite the portion of the conveyor 46 of the strip 14.
Les dispositifs de transmission 18 sont agencés entre les tables à vide 16. The transmission devices 18 are arranged between the vacuum tables 16.
Les dispositifs de transmission 18 sont, par exemple, des rouleaux. The transmission devices 18 are, for example, rollers.
Les dispositifs de transmission 18 sont aptes à faire circuler la bande 14 sur le convoyeur 10 selon la direction de déplacement. The transmission devices 18 are able to circulate the strip 14 on the conveyor 10 in the direction of movement.
Dans un mode de réalisation, le convoyeur 10 comprend en outre au moins une table chauffante en regard de la portion de convoi 46 de la bande 14. In one embodiment, the conveyor 10 further comprises at least one heating table facing the portion of the conveyor 46 of the strip 14.
Cela permet notamment de sécher un carton présent sur la bande 14 qui présenterait une trop forte humidité. Le convoyeur est dépourvu de deuxième bande transporteuse agencée en regard de la bande 14 à l’opposé de l’objet 12. This makes it possible in particular to dry a cardboard present on the strip 14 which would present too much humidity. The conveyor does not have a second conveyor belt arranged facing the belt 14 opposite to the object 12.
Le fonctionnement d’un convoyeur 10 tel que décrit précédemment va maintenant être décrit. The operation of a conveyor 10 as described above will now be described.
La bande 14 est entraînée selon la direction de déplacement par le dispositif d’entraînement 17. The strip 14 is driven in the direction of travel by the drive device 17.
La ou les tables à vide 16 génèrent localement des dépressions. The vacuum table or tables 16 locally generate depressions.
Dans les zones ajourées, la dépression locale de chaque table à vide 16 entraîne, grâce aux ouvertures 28, une force de placage de tout objet 12 sur la face de convoi 22 en regard de la table à vide 16. In the perforated zones, the local depression of each vacuum table 16 causes, thanks to the openings 28, a force for clamping any object 12 on the conveyor face 22 facing the vacuum table 16.
L’objet 12 est ici du carton s’étendant sur l’ensemble de la portion de convoi 46 de la bande 14 le long de la direction de déplacement. The object 12 here is cardboard extending over the entire convoy portion 46 of the strip 14 along the direction of travel.
Le carton est donc maintenu plaqué contre la face de convoi 22 en regard des zones ajourées sur l’ensemble de son déplacement sur la portion de convoi 46, sans nécessiter la présence d’une deuxième bande transporteuse en regard de la bande pour pincer l’objet entre les deux bandes. The cardboard is therefore kept pressed against the face of the conveyor 22 facing the perforated zones over the whole of its movement on the portion of the conveyor 46, without requiring the presence of a second conveyor belt facing the strip in order to clamp the object between the two bands.
L’objet 12 présente ici une face s’étendant contre la face de convoi 22 et une face opposée. The object 12 here has a face extending against the convoy face 22 and an opposite face.
La face opposée est ici exposée à l’air environnant. The opposite side is here exposed to the surrounding air.
Lorsque l’objet 12 est du carton à taux d’humidité élevé, la face exposée permet une évaporation de l’humidité améliorée. When the object 12 is high humidity cardboard, the exposed side allows for improved moisture evaporation.
Le carton à taux d’humidité élevé est, par exemple, un carton ondulé comprenant deux feuilles de papier planes entre lesquelles est agencée une feuille de papier ondulée qui viennent d’être collées ensemble. High humidity cardboard is, for example, corrugated cardboard comprising two flat sheets of paper between which is arranged a corrugated sheet of paper which has just been glued together.
La table chauffante, le cas échéant, sèche le carton de manière à augmenter la vitesse de diminution de son taux d’humidité. The heat table, if fitted, dries the cardboard to increase the rate of its decrease in humidity.
Une bande selon l’invention permet donc, d’une part, d’offrir la possibilité de maintenir un objet sur la face de convoi par application d’une dépression au niveau de la face d’entraînement et, d’autre part, d’améliorer l’évaporation d’un surplus éventuel d’humidité d’un objet sur la face de convoi, l’objet n’étant pas pincé entre deux bandes convoyeuses mais présentant une face exposée. A band according to the invention therefore makes it possible, on the one hand, to offer the possibility of holding an object on the convoy face by applying a vacuum at the level of the drive face and, on the other hand, to 'improve the evaporation of any excess moisture from an object on the convoy face, the object not being clamped between two conveyor belts but having an exposed face.

Claims

REVENDICATIONS
1. Bande (14) pour convoyeur (10), la bande (14) comprenant au moins une zone ajourée (24), la bande (14) présentant des ouvertures (28) dans la ou chaque zone ajourée (24) de sorte que la bande (14) est perméable à l’air dans la zone ajourée (24). 1. Belt (14) for conveyor (10), the belt (14) comprising at least one perforated area (24), the belt (14) having openings (28) in the or each perforated area (24) so that the strip (14) is permeable to air in the perforated area (24).
2. Bande selon la revendication 1 , comprenant au moins une zone pleine (26), la bande (14) étant dépourvue d’ouverture dans la ou chaque zone pleine (26). 2. Strip according to claim 1, comprising at least one solid zone (26), the strip (14) having no opening in the or each solid zone (26).
3. Bande selon la revendication 2, comprenant une pluralité de zones ajourées (24) et une pluralité de zones pleines (26), la bande (14) étant prévue pour être déplacée dans une direction de déplacement dans un convoyeur (10), les zones ajourées (24) et les zones pleines (26) étant placées alternativement le long d’une direction transversale (Y), la direction transversale étant agencée pour être perpendiculaire à la direction de déplacement. 3. Belt according to claim 2, comprising a plurality of perforated areas (24) and a plurality of solid areas (26), the belt (14) being adapted to be moved in a direction of travel in a conveyor (10), perforated areas (24) and solid areas (26) being placed alternately along a transverse direction (Y), the transverse direction being arranged to be perpendicular to the direction of movement.
4. Bande selon l’une quelconque des revendications 1 à 3, dans laquelle la bande (14) comprend une structure tissée (30), la structure tissée (30) s’étendant sur l’ensemble de la bande (14). 4. A strip according to any one of claims 1 to 3, wherein the strip (14) comprises a woven structure (30), the woven structure (30) extending over the entire strip (14).
5. Bande selon la revendication 4 lorsqu’elle dépend de la revendication 2 ou 3, dans laquelle la bande (14) présente une face d’entraînement (20) prévue pour coopérer avec un dispositif d’entraînement (17) et une face de convoi (22) prévue pour coopérer avec un objet (12) à déplacer, la structure tissée (30) présentant un traitement pour augmenter le coefficient de friction, plus particulièrement étant enduit ou imprégné avec un produit à base silicone (40), au moins sur la face de convoi (22) dans l’ensemble de la ou chaque zone pleine (26). 5. Band according to claim 4 when dependent on claim 2 or 3, wherein the band (14) has a drive face (20) provided to cooperate with a drive device (17) and a face of conveyor (22) intended to cooperate with an object (12) to be moved, the woven structure (30) having a treatment to increase the coefficient of friction, more particularly being coated or impregnated with a silicone-based product (40), at least on the convoy face (22) in the whole or each solid zone (26).
6. Bande selon la revendication 5, dans laquelle, la structure tissée (30) est dépourvue de silicone ou de produit à base silicone sur la face d’entraînement (20). 6. The band of claim 5, wherein the woven structure (30) is free of silicone or silicone-based product on the drive face (20).
7. Bande selon l’une quelconque des revendications 4 à 6, dans laquelle la structure tissée (30) présente un tissage plus serré dans la ou les zones pleines (26) que dans la ou les zones ajourées (24). 7. Band according to any one of claims 4 to 6, wherein the woven structure (30) has a tighter weave in the solid area (s) (26) than in the perforated area (s) (24).
8. Bande selon l’une quelconque des revendications 4 à 7, dans laquelle la structure tissée (30) comprend des fils de chaîne principaux (32) et des fils de chaîne secondaires (34), les fils de chaîne principaux (32) étant tissés similairement dans la ou les zones pleines (26) et dans la ou les zones ajourées (24), la densité de distribution des fils de chaîne secondaires (34) étant strictement inférieure dans la ou les zones ajourées (24) que dans la ou les zones pleines (26). 8. Band according to any one of claims 4 to 7, wherein the woven structure (30) comprises main warp yarns (32) and secondary warp yarns (34), the main warp yarns (32) being woven similarly in the solid zone (s) (26) and in the perforated zone (s) (24), the distribution density of the secondary warp yarns (34) being strictly lower in the perforated zone (s) (24) than in the perforated zone (s) (24) or the solid areas (26).
9. Bande selon la revendication 8, dans laquelle les fils de chaîne principaux (32) sont en matières synthétiques et/ou matières naturelles. 9. Band according to claim 8, wherein the main warp yarns (32) are made of plastics and / or natural materials.
10. Bande selon l’une quelconque des revendications 1 à 9, dans laquelle la bande (14) est dépourvue de silicone ou de produit à base silicone dans la ou chaque zone ajourée (24). 10. Band according to any one of claims 1 to 9, wherein the band (14) is free of silicone or silicone-based product in the or each perforated area (24).
EP21709721.1A 2020-03-11 2021-03-10 Belt for a conveyor, having perforated zones Pending EP4118013A1 (en)

Applications Claiming Priority (2)

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FR2002403A FR3108108B1 (en) 2020-03-11 2020-03-11 Belt for conveyor with perforated zones
PCT/EP2021/055969 WO2021180753A1 (en) 2020-03-11 2021-03-10 Belt for a conveyor, having perforated zones

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US (1) US20230166936A1 (en)
EP (1) EP4118013A1 (en)
CN (1) CN115768706A (en)
FR (1) FR3108108B1 (en)
WO (1) WO2021180753A1 (en)

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KR102018227B1 (en) * 2017-06-26 2019-09-04 시바우라 메카트로닉스 가부시끼가이샤 Tablet printing apparatus
SE2050167A1 (en) * 2017-07-31 2020-02-14 Kimberly Clark Co En: laminated papermaking belt se: laminerad vira för papperstillverkning

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US20230166936A1 (en) 2023-06-01
FR3108108B1 (en) 2022-04-01
WO2021180753A1 (en) 2021-09-16
FR3108108A1 (en) 2021-09-17

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