WO1993023221A1 - Board distributor for unit manufacturing wooden articles such as handling pallets - Google Patents

Board distributor for unit manufacturing wooden articles such as handling pallets

Info

Publication number
WO1993023221A1
WO1993023221A1 PCT/FR1993/000460 FR9300460W WO9323221A1 WO 1993023221 A1 WO1993023221 A1 WO 1993023221A1 FR 9300460 W FR9300460 W FR 9300460W WO 9323221 A1 WO9323221 A1 WO 9323221A1
Authority
WO
WIPO (PCT)
Prior art keywords
boards
board
transport
store
chains
Prior art date
Application number
PCT/FR1993/000460
Other languages
French (fr)
Inventor
Philippe Senechal
Original Assignee
Societe Platon S.A.
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 Societe Platon S.A. filed Critical Societe Platon S.A.
Publication of WO1993023221A1 publication Critical patent/WO1993023221A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0073—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by nailing, stapling or screwing connections

Definitions

  • the subject of the present invention is a board filler for a unit for manufacturing wooden articles such as handling pallets.
  • the production lines for pallets or other wooden objects include a chain conveyor and thrust crosspieces which drive the constituent elements of the pallet on horizontal sliding paths and bring them to a nailing station which assembles these different elements to each other.
  • the guide tracks are placed at a distance from the ground below and above the path taken by the upper strands of the conveyor chains.
  • the upper guide tracks receive distributing devices, simultaneously several boards intended to constitute the upper or lower plate of the pallet.
  • These dispensing devices are mounted above the sliding paths and include stores for storing the boards to be dispensed.
  • stores for storing the boards to be dispensed.
  • the plank stores being arranged in height, above the conveyor, their loading can only be carried out from a platform arranged to span the conveyor and on which the planks are deposited in batches by a lifting means.
  • This configuration is not conducive to decrease both the manufacturing costs and the operating costs of the manufacturing unit.
  • Some distributors of boards of the prior art are each formed only by a magazine in which the boards to be distributed are arranged in a stack one under the other.
  • the magazine in the lower part, facing the lower plate of the stack, has an opening into which a push finger carried by each crosspiece of the conveyor enters. Under the effect of the push of this finger the lower board is pushed out of the magazine towards the sliding path.
  • Other distributors include, associated with their store, means for extracting the lower board, constituted by a pusher actuated by jack.
  • This arrangement e ige means for synchronizing the movement of the rods of the jacks so that the boards intended to constitute one of the plates of the pallet are simultaneously delivered to the production line.
  • the object of the present invention is to solve the above-mentioned problems by using a board filler with magazine arranged so that said magazine can be easily loaded without requiring the use of a platform.
  • Another object of the present invention is a board filler provided with arrangements suitable for ensuring good reliability of the delivery of the boards.
  • the board distributor according to the invention intended for simultaneously distributing several boards to a line for manufacturing wooden articles such as handling pallets is essentially characterized in that it comprises laterally at the manufacturing unit, at small spacing of the ground and at breast height at least one store 6 of boards, arranged to receive a stack of boards extending transversely and vertically above a means of transport 7 of the boards which picks up the boards one by one in the magazine 6 and this according to a lower level and routes them one by one to a means of delivery 8 of the boards to the sliding paths 5, which delivery means 8 is located on a higher level above the sliding paths 5 of 1 ' manufacturing unit 2, carries only one board above each path and delivers only one board to each path 5.
  • the magazine 6 is of low capacity and is associated with an anise magazine 6A of greater capacity offset towards the rear and in height, the lower opening of the annex magazine being arranged opposite the one.
  • upper opening of the magazine 6 and the said annex magazine being associated with a transfer means er ⁇ the magazine 6 of the last board of the stack of boards it receives, which transfer means is controlled from the signal delivered by a stack stack height detector associated with the store 6. Thanks to this arrangement, any risk board jamming is removed.
  • FIG. 1 is a front view of the garnisher
  • - Figure 2 is a schematic partial sectional view of the liner
  • - Figure 3 is a front view of the chain tensioning device
  • FIG. 3A is a partial side view along the arrow FI in FIG. 3,
  • FIG. 4 is a partial front view of the ratchet wheel and of the pawl of the chain tensioning device
  • FIG. 5 is a partial side view, along arrow F2 in FIG. 4,
  • FIG. 6 is a partial perspective view showing the end of the pawl operating lever and the end of the axis of the ratchet wheel.
  • FIG. 7 is a detailed view showing the cam and the contactor
  • FIG. 8 is a view of the means of delivery of boards at the manufacturing unit
  • FIG. 9 is a view of the pusher drive device.
  • the trimmer 1 of boards according to the invention is intended to be associated with a unit 2 for manufacturing wooden articles such as handling pallets.
  • This unit 2 comprises an endless chain conveyor 3 and thrust crosspieces 4 above which and at a distance from the ground are mounted, in the same horizontal plane, several horizontal sliding paths 5 to which the garnisher simultaneously delivers several boards intended to constitute the 'one of the pallet plates and on which the said boards are caused to slide under the effect of the thrust of the crosspieces 4.
  • each sliding path reproduces the spacing between the boards of the plate and preferably each sliding path, of U-shaped section, has a lower longitudinal opening in which engages a finger of the thrust crosspiece coming from '' engage in the sliding path to push on this path the board he received.
  • the upholsterer 1 comprises laterally to the manufacturing unit, on the same frame, with small spacing from the ground and at breast height at least one plank magazine 6 arranged to receive a stack of planks extending transversely and vertically above a means of transport 7 of the boards which picks up the boards one by one in the magazine 6 and this according to a lower level and routes them one by one to a means of delivery 8 of the boards to the sliding paths 5, which delivery means 8 is located at a level above the sliding paths 5 of the manufacturing unit 2, does not carries above each path only one board and delivers at each path 5 only one board.
  • plank store is no longer above the production line and the position it occupies is suitable for facilitating its unloading.
  • the delivery means receiving only one board above each sliding path, the risk of trapping the boards during their distribution to the sliding paths is greatly minimized.
  • the means of transport 7 for the boards extends perpendicular to the manufacturing unit 2 from the magazine 6 to the delivery means 8.
  • the means of transport 7 considering the direction of movement of the boards from the magazine 6 towards the delivery means 8, has a horizontal rectilinear portion 7 of relatively great length, extended towards the manufacturing unit by an oblique portion 7B or ascending portion which is extended above the production line by an upper horizontal rectilinear portion 7C followed by a curved portion 7D, which is extended by a rectilinear portion horizontal 7E coming under the portion 7C and above the delivery means 8.
  • the length given to the straight portion 7A allows the removal and replacement of a defective board and the addition of a missing board.
  • the means of transport 7 is constituted by at least two guide rails 9, parallel, extending perpendicular to the production line from the magazine 6 to the delivery means 8 and by two endless chains 10, each movable on a vertical plane parallel to the guide rails 9, stretched between driving pinions engaged with a drive means, and driven pinions 11 which are wedged on the same shaft 12 mounted on bearings 16, said chains 10 being provided with tabs 14 coming in the course of the movement of the chains in turn picking up the lower board from the stack of boards in the magazine 6 and sliding the said board on the guide rails 9, towards the delivery means 8.
  • each endless chain 10 and the guide rails 9 successively have a horizontal rectilinear portion corresponding to the portion 7A of the transport means 7, a horizontal oblique portion corresponding to the portion 7B of the transport means, a portion horizontal upper rectilinear corresponding to portion 7C of the means of transport.
  • each chain has a rectilinear portion above the delivery means 8 corresponding to the portion 7E of the transport means 7.
  • the stack of boards of the magazine 6 by its vertical median plane containing the longitudinal axes of the boards, extends perpendicular to the direction of movement of the means of transport.
  • the magazine 6 has a lower opening into which the cleats 14 of the endless chains penetrate. Therefore the last plank of the stack of planks of the magazine is extracted from the magazine by the pushing effect of the lugs 14.
  • the lugs 14 from one chain to the other are arranged in pairs and that the cleats of the same pair are placed along a line perpendicular to the direction of movement of the conveyor. The movement of the boards towards the delivery means will therefore take place perpendicular to their longitudinal axis.
  • the cleats 14 of the endless chains 10 are arranged in attachment to said chains by regularly spaced groups, each group being assigned to transport to the delivery means 8 a batch of boards intended for the constitution of a single pallet tray, each cleat group being constituted by several pairs of cleats and the gap between the pairs of cleats 14 of each group reproducing the gap between the boards of the plate.
  • the movement of the chains 10 with cleats 14 is carried out intermittently, the said movement being interrupted after depositing on the delivery means 8 a batch of boards intended for constituting a tray and resuming after delivery of this batch to the sliding paths 5 of the manufacturing unit.
  • the delivery means 8 comprises, in the extension of the curved portion of the guide rails 9, two retractable flaps 15 on which the lower strands of the endless chains 10 have a set of boards to be distributed, the said retractable flaps 15 being arranged parallel to the lower strands of the endless chains 10 and being each associated with a motor member which actuates them simultaneously between a first position according to which they are arranged in the same horizontal plane and arranged so as to support above the sliding paths the batch of boards to distribute to them and a second position separated from the first according to which the batch of boards is released and can fall in the sliding paths 5.
  • the retractable flaps 15 support the boards by the ends of the latter.
  • the flaps 15 can be movable in a horizontal plane away from and approaching one another and according to this embodiment can be slidably mounted in horizontal guide rails fixed to the frame of the upholsterer.
  • the drive member associated with each component may be constituted by a hydraulic or pneumatic cylinder.
  • the cylinder rod can be fixed to the flap while the body can be fixed to the frame of the upholsterer.
  • Means for detecting the batch of boards will also be provided on the flaps 15 and above the sliding paths 5, the said detection means controlling the stopping of the movement of the chains 10 when the boards of the batch are each arranged above of the sliding path 5 which must receive it.
  • the shaft 12 carrying the pinions 11 is mounted by its two bearings on a structure 17 sliding in a horizontal plane and along the longitudinal axis of the means of transport, this sliding structure being pushed backwards and held in position by a tensioning mechanism.
  • the sliding structure consists of two horizontal slides, parallel to the direction of movement of the endless chains, each slidably mounted in a slide secured to the frame of the upholsterer and carrying each a bearing 16 of the shaft 12.
  • the tensioning mechanism comprises at least one rack 18 fixed to the sliding structure and at least one pinion 19 cooperating in mesh with the rack 18 the said pinion being wedged on a horizontal shaft 20 engaged with a ratchet wheel 21 in the teeth which engages a tilting pawl 22.
  • each rack 18 is provided, each cooperating with a pinion 19, each rack being fixedly fixed with a slide of its structure 17.
  • the shaft 20 extends horizontally and perpendicular to the direction of movement of the endless chains.
  • This shaft 20 is rotatably mounted in two bearings 24 fixed to the frame of the trimmer.
  • the shaft 20 cooperates with the ratchet wheel by means of two pinions 25, 26 which mesh with each other the pig 25 is wedged on the shaft 20 while the pig 26 is wedged on an axis 23 supporting the ratchet wheel 21.
  • This axis is rotatably mounted in a bearing fixed to the frame of the upholsterer.
  • this axis is made an operating square intended to receive an engagement in the form of the tip of an operating key.
  • the pinions 19 act on the racks which has the effect of pushing the sliding structure backwards. This movement backwards results in tensioning the endless chains 10.
  • the pawl 22 is preferably articulated to an axis integral with the chassis of the machine and is biased towards the ratchet wheel by the action of an elastic member 27 such as a compression spring.
  • this pawl 22 will not be able to disengage from the ratchet wheel untimely.
  • the pawl is seated with an operating member.
  • the maneuvering member is constituted by a tilting lever 28 mounted by one of its ends between the wings of a yoke 29 fixed to the pawl and comprising above the lever a cross member 30 against which the lever bears when it is tilted.
  • the action exerted by the lever on the cross member has the effect of angularly spreading the pawl of the ratchet wheel 21.
  • the lever 28 is articulated by its median zone to the frame of the upholstery and comprises at its other end a handle of maneuver.
  • the magazine 6 is of low capacity and is associated with an anise magazine 6A of larger capacity offset towards the rear and in height, the lower opening of the annex magazine being disposed opposite the upper opening of the magazine 6 and the said annex magazine being associated with a transfer means towards the magazine 6 of the last board of the stack of boards which it receives which transfer means is controlled from the signal delivered by a stack stack height detector associated with the magazine 6.
  • the capacity of the magazine 6 is limited to ten boards, which eliminates any risk of jamming of the bottom board during its removal.
  • the upper opening of the annex store through which the latter is loaded is located at breast height for the reasons mentioned above.
  • the annex store 6A takes the form of a rectangular box open at the upper end and at the lower end.
  • the transfer means consists of at least one movable plunger 31 horizontally from back to front and from front to back through the lower opening of the annex magazine 6A, which pusher 31 is associated with a mechanism 'driving rods 32 and cranks 33 actuated by motor means.
  • two pushers are provided which are driven in synchronism through the lower opening of the magazine.
  • Each of these pushers is slidably mounted in a guide fixed to the frame of the packing machine and extends perpendicular to the longitudinal axis of the board to be extracted from the annex store.
  • the shaft 34 will be associated with a cam 35 for actuating an electrical contactor 36, the position of the electrical contactor 36 materializing the position of the rear dead center. It should be noted that in the rear neutral position the pushers are moved away from the lower opening of the annex magazine.
  • a too low height of stack of boards in the magazine 6 is detected by the height detector which can be formed by a photoelectric cell. From the signal delivered by the detector and relating to the absence of boards, the electric motor of the transfer means is activated so that one or more boards are transferred from the annex store to store 6. When the required height of boards is reached in the magazine 6, the signal delivered by the contactor 36 when it is actuated by the cam 35 will generate the deactivation of the electric motor of the transfer means. This engine electric will therefore be deactivated when the pushers are in the rear format stitch position.
  • the magazine 6 is constituted by two horizontal arms 37 supporting above the upper strand of the chains 10, the stack of boards and by vertical arms 38 coming in front of the stack of boards and fixed by their upper end in a fastening piece secured to horizontal legs fixed a horizontal cross member of the frame of the upholsterer.
  • the horizontal legs extend above the stack of spacing boards from the latter.
  • the magazine 6 is carried by a lifting structure so that it can be released from the endless chains.
  • the horizontal arms 37 are carried by this lifting structure which can be constituted by two elements of horizontal crosspieces each of which is fixed an arm 37.
  • Each element of crosspiece may be provided with a vertica slide engaging in a vertical slide of the frame d garnisseur and will be engaged with a lifting member consisting for example of a jack.

Abstract

Distributor (1) comprising, laterally to the manufacturing unit (2) and just above floor level and at chest height, at least one board holder (6) mounted above a conveyer belt (16) fitted with means for gripping the boards in the holder one by one and conveying them to a delivery means (8) located on an upper level in relation to the slides (5) of the manufacturing unit (2), each slide receiving a board from the delivery means.

Description

GARNISSEUR DE PLANCHES POUR UNITE DE FABRICATION D'ARTICLES EN BOIS TELS DES PALETTES DE MANUTENTION.BOARD FILLER FOR UNIT FOR MANUFACTURING WOOD ARTICLES SUCH AS HANDLING PALLETS.
La présente invention a pour objet un garnisseur de planches pour unité de fabrication d'articles en bois tels des palettes de manutention.The subject of the present invention is a board filler for a unit for manufacturing wooden articles such as handling pallets.
Les lignes de fabrication des palettes ou autre objet en bois comprennent un convoyeur à chaînes et traverses de poussée qui entraînent sur des chemins de glissement horizontaux les éléments constitutifs de la palette et les amènent à un poste de clouage qui réalise l'assemblage de ces différents éléments les uns aux autres.The production lines for pallets or other wooden objects include a chain conveyor and thrust crosspieces which drive the constituent elements of the pallet on horizontal sliding paths and bring them to a nailing station which assembles these different elements to each other.
Les chemins de guidage sont placés à distance du sol en dessous et en dessus du trajet effectué par les brins supérieurs des chaînes du convoyeur. Généralement les chemins de guidage supérieurs reçoivent des dispositifs distributeurs, simultanément plusieurs planches destinées à constituer le plateau supérieur ou inférieur de la palette.The guide tracks are placed at a distance from the ground below and above the path taken by the upper strands of the conveyor chains. Generally the upper guide tracks receive distributing devices, simultaneously several boards intended to constitute the upper or lower plate of the pallet.
Ces dispositifs distributeurs sont montés au dessus des chemins de glissement et comportent des magasins de stockage des planches à distribuer. Généralement sont utilisés autant de dispositifs distributeurs avec magasin que la fabrication en cours requiert de planches pour la constitution du plateau supérieur ou inférieur de la palette de manutention. Les magasins de planches étant disposés en hauteur, au dessus du convoyeur, leur chargement ne peut être opéré qu'à partir d'une plate-forme agencée pour enjamber le convoyeur et sur laquelle les planches sont déposées par lot par un moyen élévateur.These dispensing devices are mounted above the sliding paths and include stores for storing the boards to be dispensed. In general, as many dispensing devices with store are used as the production in progress requires boards for the constitution of the upper or lower plate of the handling pallet. The plank stores being arranged in height, above the conveyor, their loading can only be carried out from a platform arranged to span the conveyor and on which the planks are deposited in batches by a lifting means.
Cette configuration n'est pas propice à diminuer tant les coûts de fabrication que les coûts d'exploitation de 1'unité de abrication.This configuration is not conducive to decrease both the manufacturing costs and the operating costs of the manufacturing unit.
Certains distributeurs de planches de l'art antérieur ne sont formés chacun que par un magasin dans lequel les planches à distribuer sont disposées en empilement les unes sous les autres. Le magasin en partie inférieure, en regard de la planche inférieure de la pile comporte une ouverture dans laquelle pénètre un doigt de poussée porté par chaque traverse du convoyeur. Sous l'effet de la poussée de ce doigt la planche inférieure est poussée en dehors du magasin vers le chemin de glissement.Some distributors of boards of the prior art are each formed only by a magazine in which the boards to be distributed are arranged in a stack one under the other. The magazine in the lower part, facing the lower plate of the stack, has an opening into which a push finger carried by each crosspiece of the conveyor enters. Under the effect of the push of this finger the lower board is pushed out of the magazine towards the sliding path.
L'inconvénient d'une telle disposition réside dans son faible degré de fiabilité. En effet la planche à extraire peut se trouver coincée dans le magasin sous l'effet du poids de la pile.The disadvantage of such an arrangement lies in its low degree of reliability. In fact, the extraction board can be stuck in the magazine under the effect of the weight of the stack.
D'autres distributeurs comportent, associés à leur magasin, des moyens d'extraction de la planche inférieure, constitués par un poussoir actionné par vérin. Cette disposition e ige des moyens de synchronisation du mouvement des tiges des vérins de sorte que les planches destinées à constituer l'un des plateaux de la palette soient de manière simultanée délivrées à la ligne de fabrication. La présente invention a pour objet de résoudre les problêmes sus-évoqués en mettant en oeuvre un garnisseur de planches avec magasin agencé de façon que le dit magasin puisse être facilement chargé sans requérir l'emploi de plate-forme. Un autre but de la présente invention est un garnisseur de planches pourvu d'aménagements propres à assurer une bonne fiabilité de la délivrance des planches.Other distributors include, associated with their store, means for extracting the lower board, constituted by a pusher actuated by jack. This arrangement e ige means for synchronizing the movement of the rods of the jacks so that the boards intended to constitute one of the plates of the pallet are simultaneously delivered to the production line. The object of the present invention is to solve the above-mentioned problems by using a board filler with magazine arranged so that said magazine can be easily loaded without requiring the use of a platform. Another object of the present invention is a board filler provided with arrangements suitable for ensuring good reliability of the delivery of the boards.
A cet effet le distributeur de planches selon l'invention destiné à distribuer simultanément plusieurs planches à une ligne de fabrication d'articles en bois tels des palettes de manutention se caractérise essentiellement en ce qu'il comprend latéralement à l'unité de fabrication, à faible écartement du sol et à hauteur d'homme au moins un magasin 6 de planches, agencé pour recevoir une pile de planches s'étendant transversalement et verticalement au dessus d'un moyen de transport 7 des planches qui prélève les planches une à une dans le magasin 6 et ce suivant un niveau inférieur et les achemine une à une vers un moyen de délivrance 8 des planches aux chemins de glissement 5, lequel moyen de délivrance 8 est situé suivant un niveau supérieur au dessus des chemins de glissement 5 de 1'unité de fabrication 2, ne porte au dessus de chaque chemin qu'une seule planche et ne délivre à chaque chemin 5 qu'une seule planche.To this end, the board distributor according to the invention intended for simultaneously distributing several boards to a line for manufacturing wooden articles such as handling pallets is essentially characterized in that it comprises laterally at the manufacturing unit, at small spacing of the ground and at breast height at least one store 6 of boards, arranged to receive a stack of boards extending transversely and vertically above a means of transport 7 of the boards which picks up the boards one by one in the magazine 6 and this according to a lower level and routes them one by one to a means of delivery 8 of the boards to the sliding paths 5, which delivery means 8 is located on a higher level above the sliding paths 5 of 1 ' manufacturing unit 2, carries only one board above each path and delivers only one board to each path 5.
On comprend donc que cette disposition est proprice à faciliter le chargement du magasin puisque ce dernier se trouve à faible hauteur du sol.We therefore understand that this arrangement is conducive to facilitate the loading of the store since the latter is at low height from the ground.
Selon une autre caractéristique de 1'invention le magasin 6 est de faible capacité et est associé à un magasin anexe 6A de plus grande capacité déporté vers 1'arrière et en hauteur, l'ouverture inférieure du magasin annexe étant disposée en regard de 1'ouverture supérieure du magasin 6 et le dit magasin annexe étant associé à un moyen de transfert er^ le magasin 6 de la dernière planche de la pile de planches qu'il reçoit, lequel moyen de transfert est commandé à partir du signal délivré par un détecteur de hauteur de pile de planches associé au magasin 6. Grâce à cette disposition tout risque de coincement des planches est écarté.According to another characteristic of the invention, the magazine 6 is of low capacity and is associated with an anise magazine 6A of greater capacity offset towards the rear and in height, the lower opening of the annex magazine being arranged opposite the one. upper opening of the magazine 6 and the said annex magazine being associated with a transfer means er ^ the magazine 6 of the last board of the stack of boards it receives, which transfer means is controlled from the signal delivered by a stack stack height detector associated with the store 6. Thanks to this arrangement, any risk board jamming is removed.
D'autres avantages et caractéristiques de l'invention apparaîtront à la lecture de la description d'une forme préférée de réalisation donnée à titre d'exemple non limitatif en se référant aux dessins annexés en lesquelsOther advantages and characteristics of the invention will appear on reading the description of a preferred embodiment given by way of non-limiting example with reference to the accompanying drawings in which
- la figure 1 est une vue de face du garnisseur,FIG. 1 is a front view of the garnisher,
- la figure 2 est une vue en coupe partielle schématique du garnisseur, - la figure 3 est une vue de face du dispositif de mise en tension des chaînes,- Figure 2 is a schematic partial sectional view of the liner, - Figure 3 is a front view of the chain tensioning device,
- la figure 3A est une vue partielle latérale selon la flèche FI de la figure 3,FIG. 3A is a partial side view along the arrow FI in FIG. 3,
- la figure 4 est une vue partielle de face de la roue à rochet et du cliquet du dispositif de mise en tension des chaînes,FIG. 4 is a partial front view of the ratchet wheel and of the pawl of the chain tensioning device,
- la figure 5 est une vue partielle latérale, selon la flèche F2 de la figure 4,FIG. 5 is a partial side view, along arrow F2 in FIG. 4,
- la figure 6 est une vue partielle en perspective montrant l'extrémité du levier de manoeuvre du cliquet et l'extrémité de l'axe de la roue à rochet.- Figure 6 is a partial perspective view showing the end of the pawl operating lever and the end of the axis of the ratchet wheel.
- la figure 7 est une vue de détail montrant la came et le contacteur,FIG. 7 is a detailed view showing the cam and the contactor,
- la figure 8 est une vue du moyen de délivrance des planches à l'unité de fabrication,- Figure 8 is a view of the means of delivery of boards at the manufacturing unit,
- la figure 9 est une vue du dispositif d'entraînement du poussoir.- Figure 9 is a view of the pusher drive device.
Tel que représenté le garnisseur 1 de planches selon 1'invention est destiné à être associé à une unité 2 de fabrication d'articles en bois tels des palettes de manutention.As shown, the trimmer 1 of boards according to the invention is intended to be associated with a unit 2 for manufacturing wooden articles such as handling pallets.
Cette unité 2 comprend un convoyeur à chaines sans fin 3 et traverses 4 de poussée au dessus duquel et à écartement du sol sont montés, suivant un même plan horizontal, plusieurs chemins de glissement 5 horizontaux auxquels le garnisseur délivre simultanément plusieurs planches destinées à constituer l'un des plateaux de la palette et sur lesquels les dites planches sont amenées à glisser sous l'effet de la poussée des traverses 4.This unit 2 comprises an endless chain conveyor 3 and thrust crosspieces 4 above which and at a distance from the ground are mounted, in the same horizontal plane, several horizontal sliding paths 5 to which the garnisher simultaneously delivers several boards intended to constitute the 'one of the pallet plates and on which the said boards are caused to slide under the effect of the thrust of the crosspieces 4.
L'écartement entre les chemins de glissement reproduit 1'écartement entre les planches du plateau et de préférence chaque chemin de glissement, de sectionn droite en U, présente une ouverture inférieure longitudinale dans laquelle s'engage un doigt de la traverse de poussée venant s'engager dans le chemin de glissement pour pousser sur ce chemin la planche qu'il a reçu.The spacing between the sliding paths reproduces the spacing between the boards of the plate and preferably each sliding path, of U-shaped section, has a lower longitudinal opening in which engages a finger of the thrust crosspiece coming from '' engage in the sliding path to push on this path the board he received.
Conformément à 1'invention le garnisseur 1 comprend latéralement à l'unité de fabrication,sur un même bâti, à faible écartement du sol et à hauteur d'homme au moins un magasin 6 de planches agencé pour recevoir une pile de planches s'étendant transversalement et verticalement au dessus d'un moyen de transport 7 des planches qui prélève les planches une à une dans le magasin 6 et ce suivant un niveau in érieur et les achemine une à une vers un moyen de délivrance 8 des planches aux chemins de glissement 5, lequel moyen de délivrance 8 est situé suivant un niveau supérieur au dessus des chemins de glissement 5 de l'unité de fabrication 2, ne porte au dessus de chaque chemin qu'une seule planche et ne délivre à chaque chemin 5 qu'une seule planche.In accordance with the invention, the upholsterer 1 comprises laterally to the manufacturing unit, on the same frame, with small spacing from the ground and at breast height at least one plank magazine 6 arranged to receive a stack of planks extending transversely and vertically above a means of transport 7 of the boards which picks up the boards one by one in the magazine 6 and this according to a lower level and routes them one by one to a means of delivery 8 of the boards to the sliding paths 5, which delivery means 8 is located at a level above the sliding paths 5 of the manufacturing unit 2, does not carries above each path only one board and delivers at each path 5 only one board.
On comprend donc que le magasin de planches ne se trouve plus au dessus de la ligne de fabrication et la position qu'il occupe est propre à faciliter son déchargemen .We therefore understand that the plank store is no longer above the production line and the position it occupies is suitable for facilitating its unloading.
En outre le moyen de délivrance ne recevant au dessus de chaque chemin de glissement qu'une seule planche, le risque de coincement des planches lors de leur distribution aux chemins de glissement est fortement minimisé .In addition, the delivery means receiving only one board above each sliding path, the risk of trapping the boards during their distribution to the sliding paths is greatly minimized.
Selon la forme préférée de réalisation le moyen de transport 7 des planches s ' étend perpendiculairement à l'unité de fabrication 2 depuis le magasin 6 jusqu'au moyen de délivrance 8.According to the preferred embodiment, the means of transport 7 for the boards extends perpendicular to the manufacturing unit 2 from the magazine 6 to the delivery means 8.
De plus le moyen de transport 7 en considérant le sens du mouvent des planches depuis le magasin 6 vers le moyen de délivrance 8, présente une portion rectiligne horizontale 7 de longueur relativement importante, prolongée vers l'unité de fabrication par une portion oblique 7B ou portion ascendante laquelle est prolongée au dessus de la ligne de fabrication par une portion rectiligne horizontale supérieure 7C suivie d'une portion courbe 7D, laquelle est prolongée par une portion rectiligne horizontale 7E venant sous la portion 7C et au dessus du moyen de délivrance 8.In addition, the means of transport 7, considering the direction of movement of the boards from the magazine 6 towards the delivery means 8, has a horizontal rectilinear portion 7 of relatively great length, extended towards the manufacturing unit by an oblique portion 7B or ascending portion which is extended above the production line by an upper horizontal rectilinear portion 7C followed by a curved portion 7D, which is extended by a rectilinear portion horizontal 7E coming under the portion 7C and above the delivery means 8.
La longueur donnée à la portion rectiligne 7A permet le retrait et le remplacment d'une planche défectueuse et l'ajout d'une planche manquante.The length given to the straight portion 7A allows the removal and replacement of a defective board and the addition of a missing board.
Selon la forme préférée de réalisation le moyen de transport 7 est constitué par au moins deux rails de guidage 9, parallèles, s'étendant perpendiculairement à la ligne de fabrication depuis le magasin 6 jusqu'au moyen de délivrance 8 et par deux chaînes sans fin 10, mobiles chacune sur un plan vertical parallèle aux rails de guidage 9, tendues entre des pignons menants en prise avec un moyen moteur, et des pignons menés 11 lesquels sont calés sur un même arbre 12 monté sur paliers 16, les dites chaines 10 étant pourvues de taquets 14 venant au cours du mouvement des chaines tour à tour prélever la planche inférieure de la pile de planches du magasin 6 et entraîner en glissement la dite planche sur les rails de guidage 9, vers les moyens de délivrance 8.According to the preferred embodiment the means of transport 7 is constituted by at least two guide rails 9, parallel, extending perpendicular to the production line from the magazine 6 to the delivery means 8 and by two endless chains 10, each movable on a vertical plane parallel to the guide rails 9, stretched between driving pinions engaged with a drive means, and driven pinions 11 which are wedged on the same shaft 12 mounted on bearings 16, said chains 10 being provided with tabs 14 coming in the course of the movement of the chains in turn picking up the lower board from the stack of boards in the magazine 6 and sliding the said board on the guide rails 9, towards the delivery means 8.
De plus le brin supérieur de chaque chaîne sans fin 10 et les rails de guidage 9 présentent successivement une portion rectiligne horizontale correspondant à la portion 7A du moyen de transport 7, une portion oblique horizontale correspondant à la portion 7B du moyen de transport, une portion rectiligne supérieure horizontale correspondant à la portion 7C du moyen de transport.In addition, the upper strand of each endless chain 10 and the guide rails 9 successively have a horizontal rectilinear portion corresponding to the portion 7A of the transport means 7, a horizontal oblique portion corresponding to the portion 7B of the transport means, a portion horizontal upper rectilinear corresponding to portion 7C of the means of transport.
De plus le brin inférieur de chaque chaîne présente au dessus du moyen de délivrance 8 une portion rectiligne correspondant à la portion 7E du moyen de transport 7.In addition, the lower strand of each chain has a rectilinear portion above the delivery means 8 corresponding to the portion 7E of the transport means 7.
Les chaines et les rails entre les portions 7C et 7E suivent un trajet semi-circulaire correspondant à la portion 7D du moyen de transport 7 et les dits rails au niveau de cette portion forment chacun un tunnel courbé suivant un arc de circonférence de cercle. Le fait que les rais forment au niveau de la portion 7D, un tunnel courbé permet d'assurer le maintien des planches au cours de leur passage dans la portion courbée.Chains and rails between portions 7C and 7E follow a semi-circular path corresponding to the portion 7D of the transport means 7 and the said rails at the level of this portion each form a tunnel curved along an arc of circumference of a circle. The fact that the spokes form at the level of the 7D portion, a curved tunnel makes it possible to maintain the planks during their passage through the curved portion.
On comprend donc que le brin supérieur de chaque chaîne sans fin 10 passe immédiatement sous le magasin 6 et que le brin inférieur de chaque chaîne passe immédiatement sur le moyen de délivrance 8.It is therefore understood that the upper strand of each endless chain 10 passes immediately under the magazine 6 and that the lower strand of each chain immediately passes over the delivery means 8.
La pile de planches du magasin 6 par son plan médian vertical contenant les axes longitudinaux des planches, s 'étend perpendiculairement au sens du mouvement du moyen de transport.The stack of boards of the magazine 6 by its vertical median plane containing the longitudinal axes of the boards, extends perpendicular to the direction of movement of the means of transport.
Le magasin 6 présente une ouverture inférieure dans laquelle pénétrent les taquets 14 des chaines sans fin. De ce fait la dernière planche de la pile de planches du magasin se trouve extraite du magasin par 1 ' effet de poussée des taquets 14. Il y lieu de noter que les taquets 14 d' une chaîne à 1 ' autre sont agencés par paire et que les taquets d ' une même paire sont dis po sés suivant une ligne perpendiculaire au sens du mouvement du transporteur. Le mouvement des planches vers le moyen de dél ivrance s ' e f ectuera donc perpendiculairement à leur axe longitudinal .The magazine 6 has a lower opening into which the cleats 14 of the endless chains penetrate. Therefore the last plank of the stack of planks of the magazine is extracted from the magazine by the pushing effect of the lugs 14. It should be noted that the lugs 14 from one chain to the other are arranged in pairs and that the cleats of the same pair are placed along a line perpendicular to the direction of movement of the conveyor. The movement of the boards towards the delivery means will therefore take place perpendicular to their longitudinal axis.
Préférentiellement les taquets 14 des chaines sans fin 10 sont disposés en fixation sur les dites chaines par groupes régulièrement espacés, chaque groupe étant affecté au transport vers le moyen de délivrance 8 d'un lot de planches destiné à la constitution d'un unique plateau de palettes, chaque groupe de taquet étant constitué par plusieurs paires de taquets et 1'écart entre les paires de taquets 14 de chaque groupe reproduisant l'écart entre les planches du plateau.Preferably, the cleats 14 of the endless chains 10 are arranged in attachment to said chains by regularly spaced groups, each group being assigned to transport to the delivery means 8 a batch of boards intended for the constitution of a single pallet tray, each cleat group being constituted by several pairs of cleats and the gap between the pairs of cleats 14 of each group reproducing the gap between the boards of the plate.
On comprend également que 1'écart entre les paires de taquets 14 reproduit également l'écart entre les chemins de glissement 5.It is also understood that the difference between the pairs of tabs 14 also reproduces the difference between the sliding paths 5.
De plus le mouvement des chaines 10 à taquets 14 s'effectue par intermittence, le dit mouvement étant interrompu après dépose sur le moyen de délivrance 8 d'un lot de planches destiné à la constitution d'un plateau et reprenant après délivrance de ce lot aux chemins de glissement 5 de l'unité de fabrication.In addition, the movement of the chains 10 with cleats 14 is carried out intermittently, the said movement being interrupted after depositing on the delivery means 8 a batch of boards intended for constituting a tray and resuming after delivery of this batch to the sliding paths 5 of the manufacturing unit.
Préférentiellement le moyen de délivrance 8 comprend, dans le prolongement de la portion courbe des rails de guidage 9, deux volets escamotables 15 sur lesquels les brins inférieurs des chaines sans fin 10 disposent un lot de planches à distribuer, les dits volets 15 escamotables étant disposés parallèlement aux brins inférieurs des chaines sans fin 10 et étant associés chacun à un organe moteur qui les actionne simultanément entre une première position selon laquelle ils sont disposés selon un même plan horizontal et agencés de manière à supporter au dessus des chemins de glissement le lot de planches à distribuer à ces derniers et une seconde position écartée de la première selon laquelle le lot de planches se trouve libéré et peut chuter dans les chemins de glissement 5.Preferably the delivery means 8 comprises, in the extension of the curved portion of the guide rails 9, two retractable flaps 15 on which the lower strands of the endless chains 10 have a set of boards to be distributed, the said retractable flaps 15 being arranged parallel to the lower strands of the endless chains 10 and being each associated with a motor member which actuates them simultaneously between a first position according to which they are arranged in the same horizontal plane and arranged so as to support above the sliding paths the batch of boards to distribute to them and a second position separated from the first according to which the batch of boards is released and can fall in the sliding paths 5.
Les volets 15 escamotables supportent les planches par les extrémités de ces dernières.The retractable flaps 15 support the boards by the ends of the latter.
Les volets 15 pourront être mobiles dans un plan horizontal en eloignement et rapprochement l'un de l'autre et selon cette forme de réalisation pourront être montés en coulissèment dans des glissières horizontales de guidage fixées au châssis du garnisseur.The flaps 15 can be movable in a horizontal plane away from and approaching one another and according to this embodiment can be slidably mounted in horizontal guide rails fixed to the frame of the upholsterer.
L'organe moteur associé à chaque volet pourra être constitué par un vérin hydraulique ou pneumatique.The drive member associated with each component may be constituted by a hydraulic or pneumatic cylinder.
La tige du vérin pourra être fixée au volet tandis que le corps pourra être fixé au châssis du garnisseur.The cylinder rod can be fixed to the flap while the body can be fixed to the frame of the upholsterer.
Il sera prévu en outre des moyens de détection du lot de planches sur les volets 15 et au dessus des chemins de glissement 5, les dits moyens de détection commandant l'arrêt du mouvement des chaines 10 lorsque les planches du lot sont disposées chacune au dessus du chemin de glissement 5 qui doit la recevoir.Means for detecting the batch of boards will also be provided on the flaps 15 and above the sliding paths 5, the said detection means controlling the stopping of the movement of the chains 10 when the boards of the batch are each arranged above of the sliding path 5 which must receive it.
Afin de faciliter tant la mise en tension des chaines sans fin 10 que leur démontage l'arbre 12 portant les pignons 11 est monté par ses deux paliers sur une structure 17 coulissante dans un plan horizontal et suivant l'axe longitudinal du moyen de transport, cette structure coulissante étant repoussée vers l'arrière et maintenue en position par un mécanisme de mise en tension.In order to facilitate both the tensioning of the endless chains 10 and their disassembly the shaft 12 carrying the pinions 11 is mounted by its two bearings on a structure 17 sliding in a horizontal plane and along the longitudinal axis of the means of transport, this sliding structure being pushed backwards and held in position by a tensioning mechanism.
La structure coulissante est constituée par deux coulisseaux horizontaux, parallèles au sens du mouvement des chaines sans fin, montés chacun en coulissement dans une glissière solidaire du châssis du garnisseur et portant chacun un palier 16 de l'arbre 12.The sliding structure consists of two horizontal slides, parallel to the direction of movement of the endless chains, each slidably mounted in a slide secured to the frame of the upholsterer and carrying each a bearing 16 of the shaft 12.
Le mécanisme de mise en tension comprend au moins une crémaillère 18 fixée à la structure coulissante et au moins un pignon 19 coopérant en engrénement avec la crémaillère 18 le dit pignon étant calé sur un arbre 20 horizontal en prise avec une roue à rochet 21 dans les dents de laquelle s'engage un cliquet 22 basculant.The tensioning mechanism comprises at least one rack 18 fixed to the sliding structure and at least one pinion 19 cooperating in mesh with the rack 18 the said pinion being wedged on a horizontal shaft 20 engaged with a ratchet wheel 21 in the teeth which engages a tilting pawl 22.
Préférentiellement seront prévues deux crémaillères 18 coopérant chacune avec un pignon 19 chaque crémaillère étant montée en fixation un coulisseau de sa structure 17.Preferably, two racks 18 are provided, each cooperating with a pinion 19, each rack being fixedly fixed with a slide of its structure 17.
L' arbre 20 s ' étend horizontalement et perpendiculairement au sens du mouvement des chaînes sans fin.The shaft 20 extends horizontally and perpendicular to the direction of movement of the endless chains.
Cet arbre 20 est monté en rotation dans deux paliers 24 fixés au châssis du garnisseur.This shaft 20 is rotatably mounted in two bearings 24 fixed to the frame of the trimmer.
Préférentiellement 1'arbre 20 coopère avec la roue à rochet par l'intermédiaire de deux pignons 25,26 en engrénement l'un avec l'autre le pigon 25 est calé sur l'arbre 20 tandis que le pigon 26 est calé sur un axe 23 supportant la roue à rochet 21. Cet axe est monté en rotation dans un palier fixé au châssis du garnisseur.Preferably the shaft 20 cooperates with the ratchet wheel by means of two pinions 25, 26 which mesh with each other the pig 25 is wedged on the shaft 20 while the pig 26 is wedged on an axis 23 supporting the ratchet wheel 21. This axis is rotatably mounted in a bearing fixed to the frame of the upholsterer.
A 1'une des extrémités de cet axe est pratiqué un carré de manoeuvre destiné à recevoir un engagement de forme 1'embout d'une clé de manoeuvre. Par manoeuvre ou rotation de l'axe 23 dans le sens autorisé par la configuration des dents de la roue à rochet 21, les pignons 19 agissent sur les crémaillères ce qui a pour effet de repousser vers 1 ' arrière la structure coulissante 17. Ce mouvement vers l'arrière se traduit par la mise en tension des chaines sans fin 10.At one end of this axis is made an operating square intended to receive an engagement in the form of the tip of an operating key. By maneuvering or rotating the axis 23 in the direction authorized by the configuration of the teeth of the ratchet wheel 21, the pinions 19 act on the racks which has the effect of pushing the sliding structure backwards. This movement backwards results in tensioning the endless chains 10.
On comprend aisément que le degré de mise en tension des chaines 10 peut être facilement ajusté.It is easily understood that the degree of tensioning of the chains 10 can be easily adjusted.
Le cliquet 22 est préférentiellement articulé à un axe solidaire du châssis de la machine et est sollicité vers la roue à rochet par l'action d'un organe élastique 27 tel un ressort de compression.The pawl 22 is preferably articulated to an axis integral with the chassis of the machine and is biased towards the ratchet wheel by the action of an elastic member 27 such as a compression spring.
Ainsi ce cliquet 22 ne pourra se dégager de la roue à rochet de manière intempestive. Préférentillement le cliquet est assoie à un organe de manoeuvre. Par action sur cet organe de manoeuvre le cliquet est écarté angulairement de la roue à rochet ce qui a pour effet de libérer cette dernière et d'autoriser la détente des chaines sans fin 10. A titre d'exemple l'organe de manoeuvre est constitué par un levier basculant 28 monté par une des ses extrémités entre les ailes d'une chape 29 fixée au cliquet et comportant au dessus du levier une traverse 30 contre laquelle prend appui le levier lors de sa manoeuvre en basculement.Thus this pawl 22 will not be able to disengage from the ratchet wheel untimely. Preferably the pawl is seated with an operating member. By action on this maneuvering member the pawl is angularly separated from the ratchet wheel which has the effect of releasing the latter and authorizing the relaxation of the endless chains 10. By way of example the maneuvering member is constituted by a tilting lever 28 mounted by one of its ends between the wings of a yoke 29 fixed to the pawl and comprising above the lever a cross member 30 against which the lever bears when it is tilted.
L'action exercée par le levier sur la traverse a pour effet d'écarter angulairement le cliquet de la roue à rochet 21. Par ailleurs le levier 28 est articulé par sa zone médiane au châssis du garnisseur et comporte à son autre extrémité une poignée de manoeuvre.The action exerted by the lever on the cross member has the effect of angularly spreading the pawl of the ratchet wheel 21. Furthermore the lever 28 is articulated by its median zone to the frame of the upholstery and comprises at its other end a handle of maneuver.
Selon la forme préférée de réalisation le magasin 6 est de faible capacité et est associé à un magasin anexe 6A de plus grande capacité déporté vers 1 'arrière et en hauteur, l'ouverture inférieure du magasin annexe étant disposée en regard de 1'ouverture supérieure du magasin 6 et le dit magasin annexe étant associé à un moyen de transfert vers le magasin 6 de la dernière planche de la pile de planches qu'il reçoit lequel moyen de transfert est commandé à partir du signal délivré par un détecteur de hauteur de pile de planches associé au magasin 6.According to the preferred embodiment, the magazine 6 is of low capacity and is associated with an anise magazine 6A of larger capacity offset towards the rear and in height, the lower opening of the annex magazine being disposed opposite the upper opening of the magazine 6 and the said annex magazine being associated with a transfer means towards the magazine 6 of the last board of the stack of boards which it receives which transfer means is controlled from the signal delivered by a stack stack height detector associated with the magazine 6.
Selon un exemple préféré de réalisation la capacité du magasin 6 est limitée à une dizaine de planches ce qui écarte tout risque de coincement de la planche inférieure au cours de son prélèvement.According to a preferred embodiment, the capacity of the magazine 6 is limited to ten boards, which eliminates any risk of jamming of the bottom board during its removal.
L'ouverture supérieure du magasin annexe par lequel ce dernier est chargé se situe à hauteur d'homme pour les raisons précédemment évoquées.The upper opening of the annex store through which the latter is loaded is located at breast height for the reasons mentioned above.
Selon la forme préférée de réalisation le magasin annexe 6A se présente sour la forme d'un coffre parallélépipédique ouvert en extrémité supérieure et en extrémité inférieure.According to the preferred embodiment, the annex store 6A takes the form of a rectangular box open at the upper end and at the lower end.
Toujours selon la forme préférée de réalisation le moyen de transfert est constitué par au moins un poussoir mobile 31 horizontalement d'arrière en avant et d'avant en arrière au travers de l'ouverture inférieure du magasin annexe 6A, lequel poussoir 31 est associé à un mécanisme 'entraînement à bielles 32 et manivelles 33 actionné par des moyens moteur. Selon la forme préféré de réalisation sont prévus deux poussoirs entrainés en synchronisme au travers de l'ouverture inférieure du magasin.Still according to the preferred embodiment, the transfer means consists of at least one movable plunger 31 horizontally from back to front and from front to back through the lower opening of the annex magazine 6A, which pusher 31 is associated with a mechanism 'driving rods 32 and cranks 33 actuated by motor means. According to the preferred embodiment, two pushers are provided which are driven in synchronism through the lower opening of the magazine.
Chacun de ces poussoirs est monté en coulissement dans un guide fixé au châssis du garnisseur et s'étend perpendiculairement à l'axe longitudinal de la planche à extraire du magasin annexe.Each of these pushers is slidably mounted in a guide fixed to the frame of the packing machine and extends perpendicular to the longitudinal axis of the board to be extracted from the annex store.
A 1'extrémité arrière des poussoirs sont articulées deux bielles 32 articulées par leur pied à deux manivelles 33 calées en extrémité d'un arbre horizontal 34 monté en rotation dans deux paliers solidaires du châssis du garnisseur et entrainé en rotation par les moyens moteurs lesquels sont constitués par un moteur électrique 39 à l'arbre de sortie duquel est calé un pignon denté coopérant en engrénement avec une chaîne, en prise avec un second pigon denté calé sur l'arbre 34.At the rear end of the pushers are articulated two connecting rods 32 articulated by their foot with two cranks 33 wedged at the end of a horizontal shaft 34 rotatably mounted in two bearings integral with the frame of the liner and driven in rotation by the motor means which are constituted by an electric motor 39 at the output shaft of which is wedged a toothed pinion cooperating in mesh with a chain, engaged with a second toothed pig wedged on the shaft 34.
Pour détecter la position du point mort arrière des poussoirs 31, à l'arbre 34 sera associée une came 35 d'actionnement d'un contacteur électrique 36, la position du contacteur électrique 36 matérialisant la position du point mort arrière. Il est à noter qu'en position de point mort arrière les poussoirs sont écartés de l'ouverture inférieure du magasin annexe.To detect the position of the rear dead center of the pushers 31, the shaft 34 will be associated with a cam 35 for actuating an electrical contactor 36, the position of the electrical contactor 36 materializing the position of the rear dead center. It should be noted that in the rear neutral position the pushers are moved away from the lower opening of the annex magazine.
Une trop faible hauteur de pile de planches dans le magasin 6 est détectée par le détecteur de hauteur lequel peut être consitué par une cellule photo-électrique. A partir du signal délivré par le détecteur et relatif à l'absence de planches, le moteur électrique du moyen de transfert est activé en sorte qu'une ou plusieurs planches soient transférées du magasin annexe vers le magasin 6. Lorsque la hauteur requise de planches est atteinte dans le magasin 6, le signal délivré par le contacteur 36 lorsque il est actionné par la came 35 engendrera la désactivâtion du moteur électrique du moyen de transfert. Ce moteur électrique sera donc désactivé lorsque les poussoirs seront en position de point format arrière.A too low height of stack of boards in the magazine 6 is detected by the height detector which can be formed by a photoelectric cell. From the signal delivered by the detector and relating to the absence of boards, the electric motor of the transfer means is activated so that one or more boards are transferred from the annex store to store 6. When the required height of boards is reached in the magazine 6, the signal delivered by the contactor 36 when it is actuated by the cam 35 will generate the deactivation of the electric motor of the transfer means. This engine electric will therefore be deactivated when the pushers are in the rear format stitch position.
Selon une forme préférée de réalisation le magasi 6 est constitué par deux bras horizontaux 37 supportant a dessus du brin supérieur des chaines 10, la pile de planches et par des bras verticaux 38 venant en avant de la pile d planches et fixés par leur extrémité supérieure dans un pièce de fixation solidaire de pattes horizontales fixées une traverse horizontale du châssis du garnisseur. Les pattes horizontales s'étendent au dessus de l pile de planches à écartement de cette dernière.According to a preferred embodiment the magazine 6 is constituted by two horizontal arms 37 supporting above the upper strand of the chains 10, the stack of boards and by vertical arms 38 coming in front of the stack of boards and fixed by their upper end in a fastening piece secured to horizontal legs fixed a horizontal cross member of the frame of the upholsterer. The horizontal legs extend above the stack of spacing boards from the latter.
Selon la forme préférée de réalisation le magasin 6 est porté par une structure élévatrice de façon à pouvoi être dégagé des chaines sans fin. Préférentiellement seuls les bras horizontaux 37 sont portés par cette structure élévatrice laquelle peu être constituée par deux éléments de traverses horizontaux chacun desquels est fixé un bras 37. Chaque élément d traverse pourra être pourvu d'un coulisseau vertica s'engageant dans une glissière verticale du châssis d garnisseur et sera en prise avec un organe élévateu constitué par exemple d'un vérin.According to the preferred embodiment, the magazine 6 is carried by a lifting structure so that it can be released from the endless chains. Preferably only the horizontal arms 37 are carried by this lifting structure which can be constituted by two elements of horizontal crosspieces each of which is fixed an arm 37. Each element of crosspiece may be provided with a vertica slide engaging in a vertical slide of the frame d garnisseur and will be engaged with a lifting member consisting for example of a jack.
Il va de soi que la présente invention peut subi tous aménagements et toutes variantes sans pour autan sortir du cadre du présent brevet. It goes without saying that the present invention can undergo all arrangements and all variants without departing from the scope of this patent.

Claims

REVENDICATIONS
Garnisseur (1) de planches pour unité (2) de fabrication d'articles en bois tels des palettes de manutention laquelle unité comprend un convoyeur à chaines mobiles (3) et traverse de poussée (4) au dessus duquel à écartement du sol sont montés suivant un même plan, plusieurs chemins de glissement (5) horizontaux auquels le garnisseur délivre simultanément plusieurs planches destinées à constituer l'un des plateaux de la palette et sur lesquels les dites planches sont amenées à glisser sous l'effet de la poussée des traverses (4) caractérisé en ce qu'il comprend latéralement à l'unité de fabrication, à faible écartement du sol et à hauteur d'homme au moins un magasin (6) de planches agencé pour recevoir une pile de planches s'étendant transversalement et verticalement au dessus d'un moyen de transport (7) des planches qui prélève les planches une à une dans le magasin (6) et ce suivant un niveau inférieur et les achemine une à une vers un moyen de délivrance (8) des planches aux chemins de glissement (5), lequel moyen de délivrance (8) est situé suivant un niveau supérieur au dessus des chemins de glissement (5) de 1'unité de fabrication (2) et ne porte au dessus de chaque chemin qu'une seule planche et ne délivre à chaque chemin (5) qu'une seule planche. Filler (1) of boards for unit (2) for manufacturing wooden articles such as handling pallets which unit comprises a conveyor with movable chains (3) and thrust crosspiece (4) above which at ground clearance are mounted along the same plane, several horizontal sliding paths (5) in which the garnisher simultaneously delivers several boards intended to constitute one of the plates of the pallet and on which said boards are caused to slide under the effect of the thrust of the crosspieces (4) characterized in that it comprises laterally at the manufacturing unit, with small spacing from the ground and at breast height at least one store (6) of boards arranged to receive a stack of boards extending transversely and vertically above a means of transport (7) of the boards which picks up the boards one by one in the store (6) and this according to a lower level and routes them one by one to a delivery means ce (8) of boards with sliding paths (5), which delivery means (8) is situated on a level higher than above the sliding paths (5) of the manufacturing unit (2) and does not carry above from each path only one board and delivers to each path (5) only one board.
2. Garnisseur de planches selon la revendication 1 caractérisé en ce que le moyen de transport (7) des planches s'étend perpendiculairement à l'unité de fabrication (2) depuis le magasin (6) jusqu'au moyen de délivrance (8).2. Board filler according to claim 1 characterized in that the transport means (7) of the boards extends perpendicular to the manufacturing unit (2) from the store (6) to the delivery means (8) .
3. Garnisseur de planches selon la revendication 1 caractérisé en ce que le moyen de transport (7), en considérant le sens du mouvement des planches depuis le magasin (6) vers le moyen de délivrance (8), présente une portion rectiligne horizontale (7A) de longueur relativement importante, prolongée vers l'unité de fabrication par une portion oblique (7B) ou portion ascendante laquelle est prolongée au dessus de la ligne de fabrication par une portion rectiligne horizontale supérieure (7C) suivie d'une portion courbe (7D), laquelle est prolongée par une portion rectiligne horizontale (7E) venant sous la portion (7C) et au dessus du moyen de délivrance (8).3. A decker according to claim 1 characterized in that the means of transport (7), considering the direction of movement of the boards from the magazine (6) towards the delivery means (8), has a straight horizontal portion (7A) of relatively great length, extended towards the manufacturing unit by an oblique portion (7B) or ascending portion which is extended above the manufacturing line by an upper rectilinear horizontal portion (7C) followed by a curved portion (7D), which is extended by a portion horizontal rectilinear (7E) coming under the portion (7C) and above the delivery means (8).
4. Garnisseur de planches selon la revendication 1 caractérisé en ce que la pile de planches, par son plan médian vertical contenant les axes longitudinaux des planches, s'étend perpendiculairement au sens du mouvement du moyen de transport.4. Board filler according to claim 1 characterized in that the stack of boards, by its vertical median plane containing the longitudinal axes of the boards, extends perpendicular to the direction of movement of the means of transport.
5. Garnisseur de planches selon la revendication 1 caractérisé en ce que le moyen de transport (7) est constitué par au moins deux rails de guidage (9), parallèles, s'étendant perpendiculairement à la ligne de fabrication depuis le magasin (6) jusqu'au moyen de délivrance (8) et par deux chaines sans fin (10), mobiles chacune suivant un plan vertical parallèle aux rails de guidage (9), tendues entre des pignons menants en prise avec un moyen moteur et des pignons menés (11) lesquels sont calés sur un même arbre (12), les dites chaines (10) étant pourvues de taquets (14) venant au cours du mouvement des chaines tour à tour prélever la planche inférieure de la pile de planches du magasin (6) et entraîner en glissement la dite planche sur les rails de guidage (9), vers le moyen de délivrance (8).5. decking machine according to claim 1 characterized in that the transport means (7) consists of at least two guide rails (9), parallel, extending perpendicular to the production line from the store (6) to the delivery means (8) and by two endless chains (10), each movable along a vertical plane parallel to the guide rails (9), stretched between driving pinions engaged with a driving means and driven pinions ( 11) which are wedged on the same shaft (12), the said chains (10) being provided with cleats (14) coming in the course of the movement of the chains in turn picking up the bottom board from the stack of boards of the store (6) and drag said board on the guide rails (9), towards the delivery means (8).
6. Garnisseur de planches selon la revendication 1 caractérisé en ce que le brin supérieur de chaque chaîne sans fin (10) passe immédiatement sous le magasin (6) et que le brin inférieur de chaque chaîne passe immédiatement sur le moyen de délivrance (8).6. board filler according to claim 1 characterized in that the upper strand of each endless chain (10) passes immediately under the magazine (6) and that the lower strand of each chain immediately passes over the delivery means (8) .
7. Garnisseur de planches selon la revendication 5 caractérisé en ce que les taquets (14) d'une chaîne à 1*autre sont agencés par paire et que les taquets d'une même paire sont disposés suivant une ligne perpendiculaire au sens du mouvement du transporteur.7. board trimmer according to claim 5 characterized in that the cleats (14) from one chain to 1 * other are arranged in pairs and that the cleats of the same pair are arranged in a line perpendicular to the direction of movement of the carrier.
8. Garnisseur de planches selon les revendications 5 et 7 caractérisé en ce que les taquets (14) des chaines sans fin sont disposés en fixation sur les dites chaines par groupes régulièrement espacés, chaque groupe étant affecté au transport vers le moyen de délivrance (8) d'un lot de planches destiné à la consitution d'un unique plateau de palettes, chaque groupe de taquet étant constitué par plusieurs paires de taquets et l'écart entre les paires de taquets (14) de chaque groupe reproduisant l'écart entre les planches du plateau.8. board filler according to claims 5 and 7 characterized in that the tabs (14) of the endless chains are arranged in attachment to said chains by regularly spaced groups, each group being assigned to transport to the delivery means (8 ) a batch of boards intended to constitute a single pallet tray, each cleat group consisting of several pairs of cleats and the gap between the pairs of cleats (14) of each group reproducing the gap between the boards of the tray.
9. Garnisseur de planches selon les revendications 5, 6, 7 et 8 caractérisé en ce que le mouvement des chaînes (10) à taquets (14) s'effectue par intermittence, le dit mouvement étant interrompu après dépose sur le moyen de délivrance (8) d'un lot de planches destiné à la constitution d'un plateau et reprenant après délivrance de ce lot aux chemins de glissement (5) de l'unité de fabrication.9. board filler according to claims 5, 6, 7 and 8 characterized in that the movement of the chains (10) with cleats (14) is carried out intermittently, said movement being interrupted after depositing on the delivery means ( 8) of a batch of boards intended for the constitution of a tray and resuming after delivery of this batch to the sliding paths (5) of the unit manufacturing.
10. Garnisseur de planches selon les revendications 3 et 5 caractérisé en ce que le brin supérieur de chaque chaine sans fin (10) et les rails de guidage (9) présentent successivement une portion rectiligne horizontale correspondant à la portion (7A) du moyen de transport (7), une portion oblique horizontale correspondant à la portion (7B ) du moyen de transport, une portion rectiligne supérieure horizontale correspondant à la portion (7C) du moyen de transport, que le brin inférieur de chaque chaine présente au dessus du moyen de délivrance (8) une portion rectiligne correspondant à la portion (7E) du moyen de transport (7) et que les dites chaines et les dits rails, entre les portions (7C) et (7E), suivent un trajet semi-circulaire correspondant à la portion (7D) du moyen de transport (7), les dits rails au niveau de cette portion formant chacun un tunnel courbé suivant un arc de circonférence de cercle.10. Board filler according to claims 3 and 5 characterized in that the upper strand of each endless chain (10) and the guide rails (9) successively have a rectilinear horizontal portion corresponding to the portion (7A) of the means of transport (7), a horizontal oblique portion corresponding to the portion (7B) of the means of transport, a rectilinear upper horizontal portion corresponding to the portion (7C) of the means of transport, which the lower strand of each chain has above the means delivery (8) a straight portion corresponding to the portion (7E) of the means of transport (7) and that said chains and said rails, between the portions (7C) and (7E), follow a corresponding semi-circular path at the portion (7D) of the means of transport (7), the said rails at the level of this portion each forming a tunnel curved along an arc of circumference of a circle.
11. Garnisseur de planches selon les revendications 1 ou 5 caractérisé en ce que le moyen de délivrance (8) comprend, dans le prolongement de la portion courbe des rails de guidage (9), deux volets escamotables (15) sur lesquels les brins inférieurs des chaines sans fin (10) disposent un lot de planches à distribuer, les dits volets (15) escamotables étant disposés parallèlement aux brins inférieurs des chaines sans fin et étant associés chacun à un organe moteur qui les actionne simultanément entre une première position selon laquelle ils sont disposés selon un même plan horizontal et agencés de manière à supporter au dessus des chemins de glissement le lot de planches à distribuer à ces derniers et une seconde position écartée de la première selon laquelle le lot de planches se trouve libéré et peut chuter dans les chemins de glissement (5) . 11. A board filler according to claims 1 or 5 characterized in that the delivery means (8) comprises, in the extension of the curved portion of the guide rails (9), two retractable flaps (15) on which the lower strands endless chains (10) have a lot of boards to distribute, said retractable flaps (15) being arranged parallel to the lower strands of the endless chains and being each associated with a motor member which actuates them simultaneously between a first position in which they are arranged in the same horizontal plane and arranged to support the above the sliding paths the batch of boards to be distributed to the latter and a second position removed from the first according to which the batch of boards is released and may fall in the sliding paths (5).
12. Garnisseur de planches selon les revendications12. Deck filler according to the claims
5,7,8,9 et 10 caractérisé par des moyens de détection du lot de planches sur les volets (15) et au dessus des chemins de glissement (5) les dits moyens de • détection commandant l'arrêt du mouvement des chaines (10) lorsque les planches du lot sont disposées chacune au dessus du chemin de glissement (5) qui doit la recevoir.5,7,8,9 and 10 characterized by means for detecting the batch of boards on the flaps (15) and above the sliding paths (5), said means of • detection controlling the movement of the chains ( 10) when the boards of the lot are each arranged above the sliding path (5) which must receive it.
13. Garnisseur de planches selon la revendication 5 caractérisé en ce que 1'arbre (12) portant les pignons (11) est monté par ses deux paliers (16) sur une structure (17) coulissante dans un plan horizontal et suivant 1'axe du moyen de transport et que la structure coulissante est repoussée vers l'arrière par un mécanisme de mise en tension des chaines.13. A decker according to claim 5 characterized in that the shaft (12) carrying the pinions (11) is mounted by its two bearings (16) on a structure (17) sliding in a horizontal plane and along the axis means of transport and the sliding structure is pushed backwards by a chain tensioning mechanism.
14. Garnisseur de planches selon la revendication 13 caractérisé en ce que le macanisme de mise en tension comprend au moins une crémaillère (18) fixée à la structure coulissante et au moins un pignon (19) coopérant en engrénement avec la crémaillère (18) le dit pignon étant calé sur un arbre (20) horizontal en prise avec une roue à rochet (21) dans les dents de laquelle s'engage un cliquet (22) basculan .14. A board filler according to claim 13 characterized in that the tensioning mechanism comprises at least one rack (18) fixed to the sliding structure and at least one pinion (19) cooperating in mesh with the rack (18) the said pinion being wedged on a horizontal shaft (20) engaged with a ratchet wheel (21) in the teeth of which engages a tilting pawl (22).
15. Garnisseur de planches selon la revendication 1 caractérisé en ce que le magasin (6) est de faible capacité et est associé à un magasin anexe (6A) de plus grande capacité déporté vers l'arrière et en hauteur, l'ouverture inférieure du magasin annexe étant disposée en regard de l'ouverture supérieure du magasin (6) et le dit magasin annexe étant associé à un moyen de transfert vers le magasin (6) de la dernière planche de la pile de planches qu'il reçoit lequel moyen de transfert est commandé à partir du signal délivré par un détecteur de hauteur de pile de planches associé au magasin (6).15. board filler according to claim 1 characterized in that the store (6) is of low capacity and is associated with an anexe store (6A) of larger capacity offset to the rear and in height, the lower opening of the annex store being arranged opposite the upper opening of the store (6) and said annex store being associated with a means of transfer to the store (6) of the last board of the stack of boards which it receives which transfer means is controlled from the signal delivered by a height detector of stack of boards associated with the magazine (6).
16. Garnisseur de planches selon la revendication 15 caractérisé en ce que le moyen de transfert est constitué par au moins un poussoir (31) mobile horizontalement d'arrière en avant et d'avant en arrière au travers de l'ouverture inférieure du magasin annexe (6A), lequel poussoir (31) est associé à un mécanisme d'entraînement à bielles (32) et manivelles (33) actionné par des moyens moteur.16. decking machine according to claim 15 characterized in that the transfer means is constituted by at least one pusher (31) movable horizontally from back to front and from front to back through the lower opening of the annex store (6A), which pusher (31) is associated with a drive mechanism with connecting rods (32) and cranks (33) actuated by motor means.
17. Garnisseur de planches selon la revendication 1 caractérisé en ce que le magasin 6 est porté par une structure élévatrice de façon à pouvoir être dégagé des chaines sans fin. 17. A decker according to claim 1 characterized in that the magazine 6 is carried by a lifting structure so as to be able to be released from the endless chains.
PCT/FR1993/000460 1992-05-14 1993-05-12 Board distributor for unit manufacturing wooden articles such as handling pallets WO1993023221A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206079A FR2691094A1 (en) 1992-05-14 1992-05-14 Deck filler for a unit for manufacturing wooden articles such as handling pallets.
FR92/06079 1992-05-14

Publications (1)

Publication Number Publication Date
WO1993023221A1 true WO1993023221A1 (en) 1993-11-25

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FR (1) FR2691094A1 (en)
WO (1) WO1993023221A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN109132479A (en) * 2018-07-06 2019-01-04 合肥格骄电子科技有限公司 A kind of automatic discharge unit
CN113651082A (en) * 2021-07-22 2021-11-16 安徽中科达美新材料科技有限公司 Wood-plastic board processing is with connecing material conveyer

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Publication number Priority date Publication date Assignee Title
CN105252602A (en) * 2015-09-14 2016-01-20 黑龙江林科机械设备有限公司 Machining device for planing square rod into round rod
CN110901979B (en) * 2019-11-25 2021-10-19 太原科技大学 Air conditioner condenser unit packaging production line and packaging method

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US3968560A (en) * 1974-12-16 1976-07-13 Fmc Corporation Pallet assembling system
US4245756A (en) * 1979-03-01 1981-01-20 Byrne Leroy H Article dispensing and positioning device
GB1587118A (en) * 1977-04-29 1981-04-01 Osborne Stevens Group Ltd Manufacture of nailed frame assemblies eg for pallets
DE3804703A1 (en) * 1988-02-15 1989-08-24 Kermi Gmbh Board loading and feeding apparatus for producing pallets

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US3968560A (en) * 1974-12-16 1976-07-13 Fmc Corporation Pallet assembling system
GB1587118A (en) * 1977-04-29 1981-04-01 Osborne Stevens Group Ltd Manufacture of nailed frame assemblies eg for pallets
US4245756A (en) * 1979-03-01 1981-01-20 Byrne Leroy H Article dispensing and positioning device
DE3804703A1 (en) * 1988-02-15 1989-08-24 Kermi Gmbh Board loading and feeding apparatus for producing pallets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109132479A (en) * 2018-07-06 2019-01-04 合肥格骄电子科技有限公司 A kind of automatic discharge unit
CN113651082A (en) * 2021-07-22 2021-11-16 安徽中科达美新材料科技有限公司 Wood-plastic board processing is with connecing material conveyer

Also Published As

Publication number Publication date
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