EP2812269A1 - Machine for sorting flat objects on edge having a reduced noise level - Google Patents

Machine for sorting flat objects on edge having a reduced noise level

Info

Publication number
EP2812269A1
EP2812269A1 EP13704188.5A EP13704188A EP2812269A1 EP 2812269 A1 EP2812269 A1 EP 2812269A1 EP 13704188 A EP13704188 A EP 13704188A EP 2812269 A1 EP2812269 A1 EP 2812269A1
Authority
EP
European Patent Office
Prior art keywords
flat objects
sorting
stacking
edge
machine
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
EP13704188.5A
Other languages
German (de)
French (fr)
Other versions
EP2812269B1 (en
Inventor
Laurent Pellegrin
Fabrice DUCHEMIN
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.)
Solystic SAS
Original Assignee
Solystic 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 Solystic SAS filed Critical Solystic SAS
Publication of EP2812269A1 publication Critical patent/EP2812269A1/en
Application granted granted Critical
Publication of EP2812269B1 publication Critical patent/EP2812269B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/06—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B07C3/02—Apparatus characterised by the means used for distribution
    • 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
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • 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
    • B65H29/52—Stationary guides or smoothers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4214—Forming a pile of articles on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/10—Specific machines for handling sheet(s)
    • B65H2408/11—Sorters or machines for sorting articles
    • B65H2408/111—Sorters or machines for sorting articles with stationary location in space of the bins and a diverter per bin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/82—Sound; Noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/521—Noise
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail

Definitions

  • the invention relates generally to a machine for sorting flat objects on edge, comprising sorting outlets for stacking sorted flat objects, each equipped with a stacking actuator and at least one sliding plate. having a front face against which the flank of flat objects slides during the stacking of flat objects.
  • This type of sorting machines is widely known and used to sort and stack, on edge, flat objects such as for example postal items.
  • These sorting machines comprise a plurality of sorting outlets at each of which the postal items are stacked according to a predetermined sorting plan.
  • the postal items thus treated can be very varied in size, materials and weight and for example have a weight ranging from a few grams to 350 grams.
  • Each stack of postal items is then unloaded manually by an operator who places it for example in a storage bin.
  • the operation of the sorting machine thus requires the permanent activity of at least one operator to empty the sorting outlets and replenish the storage bins.
  • stacking on edge of postal items generates significant noise levels making the working conditions of the operators difficult near the sorting outlets.
  • the publication JP 57 049 854 describes, as prior art, a stacker of postal objects comprising a sliding plate along which the The surface of the flat objects slides and a mechanical absorption plate, perpendicular to the sliding plate, and against which the edge of flat objects abuts during stacking.
  • the mechanical absorption plate is designed to absorb shocks from contact with the edge of flat objects.
  • This mechanical absorption plate is fixed to the frame of the stacker which it is separated by a soundproofing plate for absorbing the noise generated by the impact of flat objects against the mechanical absorption plate.
  • This stacker is noisy.
  • it is proposed a stacker to be less noisy and having a mechanical absorption plate offset from the frame and able to deform under the impact of the singing of flat objects. This solution is however not optimal and the sound level remains high.
  • the object of the invention is to overcome these disadvantages by providing a sorting machine whose noise level is reduced, effectively and sustainably while maintaining good compactness and good ergonomics.
  • the subject of the invention is a machine for sorting flat objects on edge, comprising sorting outlets for stacking the sorted flat objects, which are each equipped with a stacking actuator and with less a sliding plate having a sliding front face against which the flank of the flat objects slides during the stacking of flat objects, characterized in that it comprises damping and noise reduction means for cooperating with the front face to absorb the noises, including the noise generated by the flat objects during stacking, at least a portion of the damping and noise reduction means being provided on and along said sliding plate, the front face of the sliding plate having at least a first perforation zone provided with a plurality of first orifices passing through the sliding plate and forming at least partly the damping and reduction means it.
  • the means damping and noise reduction also allow to absorb the internal noise of the sorting machine, for example the noise generated by the circulation of flat objects in the sorting machine.
  • the idea underlying the invention is to integrate damping and noise reduction means to existing equipment of a sorting machine.
  • the arrangement of the damping and noise reduction means combined with the sliding plate thus makes it possible to reduce the sound level while not hampering the work of the operators and by not causing any risk of premature deterioration of these damping means. and noise reduction.
  • the damping and noise reduction means act as effective sound absorption means.
  • the first perforation zone extends over the entire surface of the front face of the sliding plate
  • the sliding plate has a rear face opposite to the front face and lined with a layer of absorbent material forming part of the damping and noise reduction means;
  • the layer of absorbent material is superimposed on the first area of perforations
  • the stacking actuator is of bucket wheel type and comprises a hub provided at the rear of the sliding plate and which extend at least two sets of axially offset curved lugs, the lugs being able to receive the objects. plates during stacking, the sliding plate having at least two slots allowing the passage of the lugs, the first area of perforations being provided at least between the slots;
  • the sorting machine comprises a cowling plate provided above the sorting outlets and arranged to cover at least part of the sliding plates, the cowling sheet having second zones of perforations provided between two consecutive sliding plates and partly forming the means of damping and noise reduction.
  • Figure 1 is a schematic top view of a sorting machine according to the invention.
  • FIGS. 2 and 3 are perspective views, respectively slightly from above and slightly from below, of a part of the sorting machine according to the invention, at the level of the sorting outlets, equipped with sliding plates provided with zones of perforations of which only part of each is illustrated;
  • Figure 4A is a front perspective view of a sorting outlet slip plate of the sorting machine according to a first embodiment of the invention and the layer of absorbent material before assembly;
  • FIG. 4B is a view similar to that of FIG. 4A for a second embodiment of the invention.
  • Figure 5 is a dorsal perspective view of one of the sliding plates of Figures 4A or 4B and the layer of absorbent material assembled.
  • the sorting machine 1 comprises successively a storage magazine 100 of flat objects, a unstacker 1 10 able to depilate and serialize the flat objects flat, a conveyor 120 flat objects, a address decoding system 130 flat objects and a plurality of sorting outlets 2 at which flat objects (not shown), such as for example postal items, are stacked.
  • the flat objects are conveyed on edge by conveyor belts 3 of endless belt type and guided towards one or other of the sorting outlets 2 by substantially vertical sliding plates 4, along the sliding front face 40 of which the flank of the flat objects slides.
  • These sliding plates 4 have shapes and sizes well known in the field of sorting machines and not detailed beyond what directly concerns the invention.
  • Each sorting outlet 2 comprises a stacking actuator 5 type bucket wheel capable of stacking flat objects.
  • Each stacking actuator 5 comprises a hub (symbolized by the axes A) provided at the rear of the corresponding sliding plate 4 and which extend several series of curved pins 6a-6d distributed along the axis A
  • the stacking actuator 5 comprises four series of lugs 6a-6d, two series of lugs 6a, 6b lower and adjacent to each other, these series being provided opposite the path of the feet of the lugs. flat objects, and two sets of lugs 6c-6d, higher, these series being distant from each other and distributed over the height in the middle part of the sliding plate 4.
  • the lugs 6a 6d are able to receive, one after the other, flat objects at the corresponding sorting outlet 2 and to accompany their movement during stacking.
  • the sliding plate 4 has slots 7 therethrough, provided opposite series of lugs 6a-6d and allowing the passage of the lugs 6a-6d through the sliding plate 4 to accommodate the flat objects flowing in front of the sliding plates 4.
  • the sliding front face 40 of the sliding plate 4 comprises a first perforation zone 8 provided with first circular orifices passing through the sliding plate 4.
  • this first zone perforations 8 extends over the entire surface of the sliding plate 4.
  • the particular arrangement of the first perforation zone 8, superimposed on the sliding front face 40, allows optimal acoustic absorption of noise.
  • the first perforation zone 8 extends over a limited zone located between the two slits 7 provided in the middle part of the front face 40.
  • the rear face 41 of the sliding plate 4 is lined with a layer of absorbent material 13 (visible in FIGS. 4 and 5), for example a foam layer RESORBSON S 20 F PUN, this layer having, for example, a thickness of 20 mm.
  • the layer of absorbent material 13 has a shape and dimensions substantially similar to those of the sliding plate 4 carrying it so as to cover the largest rear surface without exceeding it.
  • the layer of absorbent material 13 is thus arranged so as not to be in the direct passage of the flat objects and not to risk being damaged.
  • the layer of absorbent material 13 covers the first orifices of the first perforation zone 8 which allows the layer of absorbent material to further attenuate the noise passing through the first orifices.
  • the particular arrangement of the layer of absorbent material 13, superimposed on the sliding front face 40, allows optimum acoustic absorption of noise.
  • the sorting machine 1 comprises a cowling sheet 1 1 (visible in FIGS. 2 and 3) at least partially covering the sliding plates 4. Between two sliding plates 4, the cowling sheet 1 1 comprises second perforation zones 12.
  • the second perforation zones 12 are preferably discontinuous with each other, which makes it possible to maintain the rigidity of the cowling sheet 1 1.
  • Each second zone of perforations 12 comprises, for example, a plurality of second circular orifices passing therethrough.
  • the noises in particular those generated by the circulation of the flat objects, are largely absorbed by the orifices of the first and second perforation zones. 8, 12 and the absorbent material layer 13.
  • the first and second perforation zones 8, 12 and the absorbent material layer 13 thus serve effective sound absorption means.
  • the working conditions of the operators are thus greatly improved.
  • the first and second perforation areas 8, 12 are provided so as not to hinder the actions of the operators. The ergonomics and compactness of the sorting machine 1 are thus preserved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Sorting Of Articles (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Abstract

The invention relates to a machine (1) for sorting flat objects on edge, comprising sorting outlets (2) for stacking said sorted flat objects, each of which is provided with a stacking actuator (5) and at least one slide plate (4) having a front surface (40) against which the edge of said flat objects slides during the stacking of said flat objects, said sorting machine (1) comprising a means (8, 12, 13) for damping and reducing noise generated by said flat objects during stacking, wherein at least part of said means (8) for damping and reducing noise is provided on said slide plate (4).

Description

Machine de tri d'objets plats sur chant de niveau sonore réduit  Machine for sorting flat objects on edge of reduced sound level
Domaine technique Technical area
L'invention concerne de façon générale une machine de tri d'objets plats sur chant, comportant des sorties de tri pour l'empilage des objets plats triés, équipées chacune d'un actionneur d'empilage et d'au moins une plaque de glissement ayant une face avant contre laquelle le flanc des objets plats glisse au cours de l'empilage des objets plats.  The invention relates generally to a machine for sorting flat objects on edge, comprising sorting outlets for stacking sorted flat objects, each equipped with a stacking actuator and at least one sliding plate. having a front face against which the flank of flat objects slides during the stacking of flat objects.
Technique antérieure Prior art
Ce type de machines de tri est largement connu et utilisé pour trier et mettre en pile, sur chant, des objets plats tels que par exemple des envois postaux. Ces machines de tri comportent une pluralité de sorties de tri au niveau de chacune desquelles les envois postaux sont empilés selon un plan de tri prédéterminé. Les envois postaux ainsi traités peuvent être très variés en dimensions, matériaux et poids et ont par exemple un poids variant entre quelques grammes à 350 grammes. Chaque pile d'envois postaux est ensuite déchargée manuellement par un opérateur qui la place par exemple dans un bac de stockage. Le fonctionnement de la machine de tri nécessite ainsi l'activité permanente d'au moins un opérateur pour vider les sorties de tri et réapprovisionner les bacs de stockage. Or, l'empilage sur chant des envois postaux génère des niveaux de bruit importants rendant les conditions de travail des opérateurs difficiles près des sorties de tri. Pour réduire ces nuisances sonores, certaines machines de tri sont équipées de barrières sonores formées par des rideaux souples en polyuréthane suspendus entre les sorties de tri et les opérateurs. Ces barrières sonores s'avèrent d'une efficacité limitée et le niveau sonore au voisinage des sorties de tri reste trop important pour les opérateurs. De plus, ces barrières sonores gênent les opérateurs lors des opérations de déchargement des piles et sont d'une durée de vie limitée.  This type of sorting machines is widely known and used to sort and stack, on edge, flat objects such as for example postal items. These sorting machines comprise a plurality of sorting outlets at each of which the postal items are stacked according to a predetermined sorting plan. The postal items thus treated can be very varied in size, materials and weight and for example have a weight ranging from a few grams to 350 grams. Each stack of postal items is then unloaded manually by an operator who places it for example in a storage bin. The operation of the sorting machine thus requires the permanent activity of at least one operator to empty the sorting outlets and replenish the storage bins. However, stacking on edge of postal items generates significant noise levels making the working conditions of the operators difficult near the sorting outlets. To reduce this noise, some sorting machines are equipped with sound barriers formed by flexible polyurethane curtains suspended between sorting outlets and operators. These sound barriers are of limited effectiveness and the sound level near the sorting outlets remains too important for the operators. In addition, these sound barriers impede the operators during unloading operations and have a limited life.
La publication JP 57 049 854 décrit, comme art antérieur, un empileur d'objets postaux comportant une plaque de glissement le long de laquelle la surface des objets plats glisse et une plaque d'absorption mécanique, perpendiculaire à la plaque de glissement, et contre laquelle le chant des objets plats vient buter lors de l'empilage. La plaque d'absorption mécanique est destinée à absorber les chocs du contact avec le chant des objets plats. Cette plaque d'absorption mécanique est fixée au bâti de l'empileur duquel elle est séparée par une plaque d'insonorisation destinée à absorber le bruit généré par le choc des objets plats contre la plaque d'absorption mécanique. Cet empileur est bruyant. Ainsi, dans le même document, il est proposé un empileur visant à être moins bruyant et comportant une plaque d'absorption mécanique décalée du bâti et apte à se déformer sous l'effet du choc du chant des objets plats. Cette solution n'est toutefois pas optimale et le niveau sonore reste élevé. The publication JP 57 049 854 describes, as prior art, a stacker of postal objects comprising a sliding plate along which the The surface of the flat objects slides and a mechanical absorption plate, perpendicular to the sliding plate, and against which the edge of flat objects abuts during stacking. The mechanical absorption plate is designed to absorb shocks from contact with the edge of flat objects. This mechanical absorption plate is fixed to the frame of the stacker which it is separated by a soundproofing plate for absorbing the noise generated by the impact of flat objects against the mechanical absorption plate. This stacker is noisy. Thus, in the same document, it is proposed a stacker to be less noisy and having a mechanical absorption plate offset from the frame and able to deform under the impact of the singing of flat objects. This solution is however not optimal and the sound level remains high.
Exposé de l'invention Presentation of the invention
Le but de l'invention est de remédier à ces inconvénients en proposant une machine de tri dont le niveau sonore est réduit, de manière efficace et durable tout en préservant une bonne compacité et une bonne ergonomie.  The object of the invention is to overcome these disadvantages by providing a sorting machine whose noise level is reduced, effectively and sustainably while maintaining good compactness and good ergonomics.
A cet effet, l'invention a pour objet une machine de tri d'objets plats sur chant, comportant des sorties de tri pour l'empilage des objets plats triés, qui sont équipées chacune d'un actionneur d'empilage et d'au moins une plaque de glissement ayant une face avant de glissement contre laquelle le flanc des objets plats glisse au cours de l'empilage des objet plats, caractérisée en ce qu'elle comporte des moyens d'amortissement et de réduction de bruit destinés à coopérer avec la face avant pour absorber les bruits, notamment les bruits générés par les objets plats au cours de l'empilage, au moins une partie des moyens d'amortissement et de réduction de bruit étant prévus sur et le long de ladite plaque de glissement, la face avant de la plaque de glissement comportant au moins une première zone de perforations pourvue d'une pluralité de premiers orifices traversant la plaque de glissement et formant au moins en partie les moyens d'amortissement et de réduction de bruit. En plus des bruits liés à l'empilage des objets plats, les moyens d'amortissement et de réduction de bruit permettent également d'absorber les bruits internes à la machine de tri, par exemple les bruits générés par la circulation des objets plats dans la machine de tri. For this purpose, the subject of the invention is a machine for sorting flat objects on edge, comprising sorting outlets for stacking the sorted flat objects, which are each equipped with a stacking actuator and with less a sliding plate having a sliding front face against which the flank of the flat objects slides during the stacking of flat objects, characterized in that it comprises damping and noise reduction means for cooperating with the front face to absorb the noises, including the noise generated by the flat objects during stacking, at least a portion of the damping and noise reduction means being provided on and along said sliding plate, the front face of the sliding plate having at least a first perforation zone provided with a plurality of first orifices passing through the sliding plate and forming at least partly the damping and reduction means it. In addition to the noises associated with stacking flat objects, the means damping and noise reduction also allow to absorb the internal noise of the sorting machine, for example the noise generated by the circulation of flat objects in the sorting machine.
L'idée à la base de l'invention est d'intégrer des moyens d'amortissement et de réduction de bruit aux équipements déjà existants d'une machine de tri. La disposition des moyens d'amortissement et de réduction de bruit combinés à la plaque de glissement permet ainsi de réduire le niveau sonore tout en ne gênant pas le travail des opérateurs et en ne générant pas de risque de détérioration prématurée de ces moyens d'amortissement et de réduction de bruit. Ainsi, les moyens d'amortissement et de réduction de bruit font office de moyens d'absorption acoustique efficaces.  The idea underlying the invention is to integrate damping and noise reduction means to existing equipment of a sorting machine. The arrangement of the damping and noise reduction means combined with the sliding plate thus makes it possible to reduce the sound level while not hampering the work of the operators and by not causing any risk of premature deterioration of these damping means. and noise reduction. Thus, the damping and noise reduction means act as effective sound absorption means.
La machine de tri selon l'invention peut avantageusement présenter les particularités suivantes : The sorting machine according to the invention may advantageously have the following particularities:
la première zone de perforations s'étend sur toute la surface de la face avant de la plaque de glissement ;  the first perforation zone extends over the entire surface of the front face of the sliding plate;
la plaque de glissement comporte une face arrière opposée à la face avant et doublée d'une couche de matériau absorbant formant en partie les moyens d'amortissement et de réduction de bruit ;  the sliding plate has a rear face opposite to the front face and lined with a layer of absorbent material forming part of the damping and noise reduction means;
la couche de matériau absorbant est superposée à la première zone de perforations ;  the layer of absorbent material is superimposed on the first area of perforations;
l'actionneur d'empilage est de type roue à godets et comporte un moyeu prévu à l'arrière de la plaque de glissement et duquel s'étendent au moins deux séries d'ergots incurvés axialement décalées, les ergots étant aptes à recevoir les objets plats au cours de l'empilage, la plaque de glissement comportant au moins deux fentes autorisant le passage des ergots, la première zone de perforations étant prévue au moins entre les fentes ;  the stacking actuator is of bucket wheel type and comprises a hub provided at the rear of the sliding plate and which extend at least two sets of axially offset curved lugs, the lugs being able to receive the objects. plates during stacking, the sliding plate having at least two slots allowing the passage of the lugs, the first area of perforations being provided at least between the slots;
- la machine de tri comporte une tôle de capotage prévue au-dessus des sorties de tri et agencée pour recouvrir au moins en partie les plaques de glissement, la tôle de capotage comportant des secondes zones de perforations prévues entre deux plaques de glissement consécutives et formant en partie les moyens d'amortissement et de réduction de bruit. the sorting machine comprises a cowling plate provided above the sorting outlets and arranged to cover at least part of the sliding plates, the cowling sheet having second zones of perforations provided between two consecutive sliding plates and partly forming the means of damping and noise reduction.
Présentation sommaire des dessins Brief presentation of the drawings
La présente invention sera mieux comprise et d'autres avantages apparaîtront à la lecture de la description détaillée d'un mode de réalisation pris à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels :  The present invention will be better understood and other advantages will appear on reading the detailed description of an embodiment taken by way of non-limiting example and illustrated by the appended drawings, in which:
la figure 1 est une vue schématique de dessus d'une machine de tri selon l'invention ;  Figure 1 is a schematic top view of a sorting machine according to the invention;
les figures 2 et 3 sont des vues en perspective, respectivement légèrement de dessus et légèrement de dessous, d'une partie de la machine de tri selon l'invention, au niveau des sorties de tri, équipées de plaques de glissement pourvues de zones de perforations dont seule une partie de chacune est illustrée ;  FIGS. 2 and 3 are perspective views, respectively slightly from above and slightly from below, of a part of the sorting machine according to the invention, at the level of the sorting outlets, equipped with sliding plates provided with zones of perforations of which only part of each is illustrated;
la figure 4A est une vue en perspective frontale d'une plaque de glissement de sortie de tri de la machine de tri selon un premier mode de réalisation de l'invention et de la couche de matériau absorbant avant assemblage ;  Figure 4A is a front perspective view of a sorting outlet slip plate of the sorting machine according to a first embodiment of the invention and the layer of absorbent material before assembly;
- la figure 4B est une vue similaire à celle de la figure 4A pour un second mode de réalisation de l'invention ; FIG. 4B is a view similar to that of FIG. 4A for a second embodiment of the invention;
la figure 5 est une vue en perspective dorsale de l'une des plaques de glissement des figures 4A ou 4B et de la couche de matériau absorbant assemblés.  Figure 5 is a dorsal perspective view of one of the sliding plates of Figures 4A or 4B and the layer of absorbent material assembled.
Description des modes de réalisation Description of the embodiments
En référence à la figure 1 , la machine de tri 1 selon l'invention comporte successivement un magasin de stockage 100 d'objets plats, un dépileur 1 10 apte à dépiler et sérialiser les objets plats dépilés, un convoyeur 120 des objets plats, un système de décodage 130 d'adresse des objets plats et une pluralité de sorties de tri 2 au niveau desquelles des objets plats (non représentés), tels que par exemple des envois postaux, sont empilés. En référence aux figures 2 et 3, les objets plats sont convoyés sur chant par des bandes transporteuses 3 de type courroie sans fin et guidés vers l'une ou l'autre des sorties de tri 2 par des plaques de glissement 4 sensiblement verticales, le long de la face avant de glissement 40 desquelles le flanc des objets plats glisse. Ces plaques de glissement 4 ont des formes et dimensions bien connues dans le domaine des machines de tri et non détaillées au-delà de ce qui concerne directement l'invention. Referring to Figure 1, the sorting machine 1 according to the invention comprises successively a storage magazine 100 of flat objects, a unstacker 1 10 able to depilate and serialize the flat objects flat, a conveyor 120 flat objects, a address decoding system 130 flat objects and a plurality of sorting outlets 2 at which flat objects (not shown), such as for example postal items, are stacked. With reference to FIGS. 2 and 3, the flat objects are conveyed on edge by conveyor belts 3 of endless belt type and guided towards one or other of the sorting outlets 2 by substantially vertical sliding plates 4, along the sliding front face 40 of which the flank of the flat objects slides. These sliding plates 4 have shapes and sizes well known in the field of sorting machines and not detailed beyond what directly concerns the invention.
Chaque sortie de tri 2 comporte un actionneur d'empilage 5 de type roue à godets apte à empiler les objets plats. Chaque actionneur d'empilage 5 comporte un moyeu (symbolisé par les axes A) prévu à l'arrière de la plaque de glissement 4 correspondante et duquel s'étendent plusieurs séries d'ergots 6a-6d incurvés réparties le long de l'axe A. Dans l'exemple illustré, l'actionneur d'empilage 5 comporte quatre séries d'ergots 6a-6d, deux séries d'ergots 6a, 6b inférieurs et adjacents entre eux, ces séries étant prévues en regard de la trajectoire des pieds des objets plats, et deux séries d'ergots 6ç_-6d, supérieurs, ces séries étant distantes entre elles et réparties sur la hauteur dans la partie médiane de la plaque de glissement 4. De manière connue, dans leurs parties concaves, les ergots 6a-6d sont aptes à recevoir, les uns après les autres, les objets plats se présentant au niveau de la sortie de tri 2 correspondante et à accompagner leur mouvement lors de l'empilage. La plaque de glissement 4 comporte des fentes 7 la traversant, prévues en regard des séries d'ergots 6a-6d et autorisant le passage des ergots 6a-6d au travers de la plaque de glissement 4 afin de pouvoir accueillir les objets plats circulant devant les plaques de glissement 4.  Each sorting outlet 2 comprises a stacking actuator 5 type bucket wheel capable of stacking flat objects. Each stacking actuator 5 comprises a hub (symbolized by the axes A) provided at the rear of the corresponding sliding plate 4 and which extend several series of curved pins 6a-6d distributed along the axis A In the illustrated example, the stacking actuator 5 comprises four series of lugs 6a-6d, two series of lugs 6a, 6b lower and adjacent to each other, these series being provided opposite the path of the feet of the lugs. flat objects, and two sets of lugs 6c-6d, higher, these series being distant from each other and distributed over the height in the middle part of the sliding plate 4. In known manner, in their concave parts, the lugs 6a 6d are able to receive, one after the other, flat objects at the corresponding sorting outlet 2 and to accompany their movement during stacking. The sliding plate 4 has slots 7 therethrough, provided opposite series of lugs 6a-6d and allowing the passage of the lugs 6a-6d through the sliding plate 4 to accommodate the flat objects flowing in front of the sliding plates 4.
Selon un premier mode de réalisation représenté par la figure 4A, la face avant de glissement 40 de la plaque de glissement 4 comporte une première zone de perforations 8 pourvue de premiers orifices circulaires traversant la plaque de glissement 4. De manière avantageuse, cette première zone de perforations 8 s'étend sur toute la surface de la plaque de glissement 4. La disposition particulière de la première zone de perforations 8, superposée à la face avant de glissement 40, permet une absorption acoustique optimale des bruits. Selon un second mode de réalisation représenté par la figure 4B, la première zone de perforations 8 s'étend sur une zone limitée située entre les deux fentes 7 prévues dans la partie médiane de la face avant 40. According to a first embodiment represented by FIG. 4A, the sliding front face 40 of the sliding plate 4 comprises a first perforation zone 8 provided with first circular orifices passing through the sliding plate 4. Advantageously, this first zone perforations 8 extends over the entire surface of the sliding plate 4. The particular arrangement of the first perforation zone 8, superimposed on the sliding front face 40, allows optimal acoustic absorption of noise. According to a second embodiment represented by FIG. 4B, the first perforation zone 8 extends over a limited zone located between the two slits 7 provided in the middle part of the front face 40.
La face arrière 41 de la plaque de glissement 4 est doublée d'une couche de matériau absorbant 13 (visible sur les figures 4 et 5), par exemple une couche en mousse RESORBSON S 20 F PUN, cette couche ayant par exemple d'une épaisseur de 20 mm. La couche de matériau absorbant 13 présente une forme et des dimensions sensiblement similaires à celles de la plaque de glissement 4 la portant de sorte à en recouvrir la plus grande surface arrière sans toutefois en dépasser. La couche de matériau absorbant 13 est ainsi disposée de sorte à ne pas être dans le passage direct des objets plats et à ne pas risquer d'être détériorée. De plus, la couche de matériau absorbant 13 recouvre les premiers orifices de la première zone de perforations 8 de qui permet à la couche de matériau absorbant d'atténuer encore davantage le bruit traversant les premiers orifices. La disposition particulière de la couche de matériau absorbant 13, superposée à la face avant de glissement 40, permet une absorption acoustique optimale des bruits.  The rear face 41 of the sliding plate 4 is lined with a layer of absorbent material 13 (visible in FIGS. 4 and 5), for example a foam layer RESORBSON S 20 F PUN, this layer having, for example, a thickness of 20 mm. The layer of absorbent material 13 has a shape and dimensions substantially similar to those of the sliding plate 4 carrying it so as to cover the largest rear surface without exceeding it. The layer of absorbent material 13 is thus arranged so as not to be in the direct passage of the flat objects and not to risk being damaged. In addition, the layer of absorbent material 13 covers the first orifices of the first perforation zone 8 which allows the layer of absorbent material to further attenuate the noise passing through the first orifices. The particular arrangement of the layer of absorbent material 13, superimposed on the sliding front face 40, allows optimum acoustic absorption of noise.
Au-dessus des sorties de tri 6a-6d, la machine de tri 1 comporte une tôle de capotage 1 1 (visible sur les figures 2 et 3) recouvrant au moins en partie les plaques de glissement 4. Entre deux plaques de glissement 4, la tôle de capotage 1 1 comporte des secondes zones de perforations 12. Les secondes zones de perforations 12 sont de préférence discontinues entre elles ce qui permet de conserver la rigidité de la tôle de capotage 1 1 . Chaque seconde zone de perforations 12 comporte par exemple une pluralité de seconds orifices circulaires la traversant.  Above the sorting outlets 6a-6d, the sorting machine 1 comprises a cowling sheet 1 1 (visible in FIGS. 2 and 3) at least partially covering the sliding plates 4. Between two sliding plates 4, the cowling sheet 1 1 comprises second perforation zones 12. The second perforation zones 12 are preferably discontinuous with each other, which makes it possible to maintain the rigidity of the cowling sheet 1 1. Each second zone of perforations 12 comprises, for example, a plurality of second circular orifices passing therethrough.
Lorsque les objets plats sont convoyés par la machine de tri 1 puis empilés au niveau des sorties de tri 2, les bruits, notamment ceux générés par la circulation des objets plats, sont en grande partie absorbés par les orifices des premières et secondes zones de perforations 8, 12 et par la couche de matériau absorbant 13. Les premières et secondes zones de perforations 8, 12 et par la couche de matériau absorbant 13 font ainsi office de moyens d'absorption acoustique efficaces. Les conditions de travail des opérateurs en sont ainsi grandement améliorées. De plus, les première et seconde zones de perforations 8, 12 sont prévues de sorte à ne pas entraver les gestes des opérateurs. L'ergonomie et la compacité de la machine de tri 1 sont ainsi préservées. When the flat objects are conveyed by the sorting machine 1 and then stacked at the sorting outlets 2, the noises, in particular those generated by the circulation of the flat objects, are largely absorbed by the orifices of the first and second perforation zones. 8, 12 and the absorbent material layer 13. The first and second perforation zones 8, 12 and the absorbent material layer 13 thus serve effective sound absorption means. The working conditions of the operators are thus greatly improved. In addition, the first and second perforation areas 8, 12 are provided so as not to hinder the actions of the operators. The ergonomics and compactness of the sorting machine 1 are thus preserved.
Il va de soi que la présente invention ne saurait être limitée à la description du mode de réalisation qui précède, elle est susceptible de subir quelques modifications sans pour autant sortir du cadre de l'invention.  It goes without saying that the present invention can not be limited to the description of the embodiment which precedes, it is likely to undergo some modifications without departing from the scope of the invention.

Claims

REVENDICATIONS
1 . Machine de tri (1 ) d'objets plats sur chant, comportant des sorties de tri (2) pour l'empilage desdits objets plats triés, équipées chacune d'un actionneur d'empilage (5) et d'au moins une plaque de glissement (4) ayant une face avant de glissement (40) contre laquelle le flanc desdits objets plats glisse au cours de l'empilage desdits objets plats, caractérisée en ce qu'elle comporte des moyens d'amortissement et de réduction de bruit (8, 12, 13) destinés à coopérer avec ladite face avant (40) pour absorber les bruits, notamment les bruits générés par lesdits objets plats au cours de l'empilage, au moins une partie desdits moyens d'amortissement et de réduction de bruit (8, 13) étant prévus sur et le long de ladite plaque de glissement (4), ladite face avant (40) de ladite plaque de glissement (4) comportant au moins une première zone de perforations (8) pourvue d'une pluralité de premiers orifices traversant ladite plaque de glissement (4) et formant au moins en partie lesdits moyens d'amortissement et de réduction de bruit. 1. Machine for sorting (1) flat objects on edge, comprising sorting outlets (2) for stacking said sorted flat objects, each equipped with a stacking actuator (5) and at least one plate of sliding (4) having a sliding front face (40) against which the side of said flat objects slides during the stacking of said flat objects, characterized in that it comprises damping and noise reduction means (8); , 12, 13) intended to cooperate with said front face (40) to absorb the noises, in particular the noises generated by said flat objects during stacking, at least a part of said damping and noise reduction means ( 8, 13) being provided on and along said sliding plate (4), said front face (40) of said sliding plate (4) having at least a first perforation zone (8) provided with a plurality of first orifices passing through said sliding plate (4) and forming at least one said damping and noise reduction means.
2. Machine de tri (1 ) d'objets plats sur chant selon la revendication 1 , caractérisée en ce que ladite première zone de perforations (8) s'étend sur toute la surface de ladite face avant (40) de ladite plaque de glissement (4). 2. machine for sorting (1) flat objects on edge according to claim 1, characterized in that said first zone of perforations (8) extends over the entire surface of said front face (40) of said sliding plate (4).
3. Machine de tri (1 ) d'objets plats sur chant selon la revendication 1 , caractérisée en ce que ladite plaque de glissement (4) comporte une face arrière (41 ) opposée à ladite face avant (40) et doublée d'une couche de matériau absorbant (13) formant en partie lesdits moyens d'amortissement et de réduction de bruit. 3. flat-edge sorting machine (1) according to claim 1, characterized in that said sliding plate (4) has a rear face (41) opposite to said front face (40) and doubled with a layer of absorbent material (13) partially forming said damping and noise reduction means.
4. Machine de tri (1 ) d'objets plats sur chant selon la revendication s, caractérisée en ce que ladite couche de matériau absorbant (13) est superposée à ladite première zone de perforations (8). 4. Edge flattening machine (1) according to claim 5, characterized in that said layer of absorbent material (13) is superimposed on said first perforation area (8).
5. Machine de tri (1 ) d'objets plats sur chant selon la revendication 1 , caractérisée en ce que ledit actionneur d'empilage (5) est de type roue à godets et comporte un moyeu prévu à l'arrière de ladite plaque de glissement (4) et duquel s'étendent au moins deux séries d'ergots (6a-6d) incurvés axialement décalées, lesdits ergots (6a-6d) étant aptes à recevoir les objets plats au cours de l'empilage, ladite plaque de glissement (4) comportant au moins deux fentes (7) autorisant le passage desdits ergots (6a-6d), ladite première zone de perforations (8) étant prévue au moins entre lesdites fentes (7). 5. flat edge sorting machine (1) according to claim 1, characterized in that said stacking actuator (5) is of the bucket wheel type and comprises a hub provided at the rear of said plate. sliding (4) and which extend at least two series of pins (6a-6d) curved axially offset, said lugs (6a-6d) being adapted to receive the flat objects during stacking, said sliding plate (4) having at least two slots (7) allowing the passage of said lugs (6a-6d), said first perforation area (8) being provided at least between said slots (7).
6. Machine de tri (1 ) d'objets plats sur chant selon la revendication 1 , caractérisée en ce qu'elle comporte une tôle de capotage (1 1 ) prévue au- dessus desdites sorties de tri (2) et agencée pour recouvrir au moins en partie lesdites plaques de glissement (4), ladite tôle de capotage (1 1 ) comportant des secondes zones de perforations (12) prévues entre deux plaques de glissement (4) consécutives et formant en partie lesdits moyens d'amortissement et de réduction de bruit. 6. Machine for sorting (1) flat objects on edge according to claim 1, characterized in that it comprises a cowling sheet (1 1) provided above said sorting outlets (2) and arranged to cover at the at least partly said slip plates (4), said cowling sheet (1 1) having second perforation zones (12) provided between two consecutive sliding plates (4) and partly forming said damping and reducing means noise.
EP13704188.5A 2012-02-07 2013-01-22 Machine for sorting flat objects on edge having a reduced noise level Not-in-force EP2812269B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1251128A FR2986519B1 (en) 2012-02-07 2012-02-07 MACHINE FOR SORTING FLAT OBJECTS ON SINGING SOUND LEVEL
PCT/FR2013/050135 WO2013117837A1 (en) 2012-02-07 2013-01-22 Machine for sorting flat objects on edge having a reduced noise level

Publications (2)

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EP2812269A1 true EP2812269A1 (en) 2014-12-17
EP2812269B1 EP2812269B1 (en) 2016-07-20

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US (1) US9440815B2 (en)
EP (1) EP2812269B1 (en)
DK (1) DK2812269T3 (en)
FR (1) FR2986519B1 (en)
PT (1) PT2812269T (en)
WO (1) WO2013117837A1 (en)

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US10664943B2 (en) * 2017-06-02 2020-05-26 Apple Inc. Compound shader object and use thereof

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Also Published As

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FR2986519A1 (en) 2013-08-09
US9440815B2 (en) 2016-09-13
DK2812269T3 (en) 2016-10-10
US20150016938A1 (en) 2015-01-15
FR2986519B1 (en) 2014-08-29
PT2812269T (en) 2016-08-18
EP2812269B1 (en) 2016-07-20
WO2013117837A1 (en) 2013-08-15

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