EP0901892B1 - Machine automatique électronique à couper et à fendre du bois - Google Patents

Machine automatique électronique à couper et à fendre du bois Download PDF

Info

Publication number
EP0901892B1
EP0901892B1 EP98117133A EP98117133A EP0901892B1 EP 0901892 B1 EP0901892 B1 EP 0901892B1 EP 98117133 A EP98117133 A EP 98117133A EP 98117133 A EP98117133 A EP 98117133A EP 0901892 B1 EP0901892 B1 EP 0901892B1
Authority
EP
European Patent Office
Prior art keywords
assembly
machine
trunk
chopping
trunks
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.)
Revoked
Application number
EP98117133A
Other languages
German (de)
English (en)
Other versions
EP0901892A3 (fr
EP0901892A2 (fr
Inventor
Ercole Della Rossa
Maurizio Orlando
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.)
PINOSA SRL
Original Assignee
PINOSA Srl
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11422453&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0901892(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PINOSA Srl filed Critical PINOSA Srl
Publication of EP0901892A2 publication Critical patent/EP0901892A2/fr
Publication of EP0901892A3 publication Critical patent/EP0901892A3/fr
Application granted granted Critical
Publication of EP0901892B1 publication Critical patent/EP0901892B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders

Definitions

  • This invention concerns an automatic electronic wood cutting/chopping machine as set forth in the preamble portion of claim 1.
  • Such a device is known for example from US-A-4,373,564.
  • the machine allows to automatically produce segments of firewood from tree trunks from which the branches have been removed.
  • the machine automatically cuts the trunks first transversely so as to obtain sections of a desired length as a whole sub-multiple of the trunk, and then automatically chops the individual sections thus obtained in a lengthwise direction.
  • Machines such as are known in the state of the art have a limited production capacity because of the large number of manual operations required.
  • the trunks are cut transversely into sections of a desired length, normally with circular, strip or chain saws, and in a second step the sections are chopped lengthwise, usually in half or in quarters or eighths with a single stationary grid against which the section is thrust.
  • the wood produced is of extremely poor quality since the grid has no self-centering system with respect to the section to be chopped; moreover productivity is very low because of the long times required by the actuation cycles. As a consequence, the cost of the wood is very high inasmuch as it is considerably affected by the labour costs.
  • the purpose of the invention is to provide an entirely automatic wood cutting/chopping machine which is easy to use, highly efficient, productive, versatile and safe for the user.
  • Another purpose is to provide an automatic wood cutting/ chopping machine which is able to determine, automatically and in a standardised manner, the length of the sections into which the trunk is cut, and also the number and size of the parts obtainable by the chopping operation.
  • the machine consists of an assembly to load the trunks, an assembly to feed the trunks, a gripper assembly, an assembly for cutting to size, a translation assembly to translate the sections and a chopping assembly.
  • downstream of the chopping assembly there is carrier assembly to separate the pieces of firewood produced.
  • the machine according to the invention is governed by an electronic control and drive unit which coordinates all these assemblies, the actuators and the auxiliary means such as the proximity sensors, end-of-travel means, accident prevention systems, optical means, detectors, etc.
  • the actuators are oil dynamic so as to increase the versatility of the machine and to reduce the risks of accidents due to the presence of electric cables.
  • the oil dynamic actuators are governed by a pressure control unit, controlled by the control and drive unit, with one or more pump means each feeding an autonomous circuit.
  • the loading assembly for example, with a toothed chain, slide, sloping surfaces, rollers, etc., picks up the trunks one at a time from a stockpile zone and discharges them, one by one, onto the feed assembly which moves them lengthwise towards the cutting assembly.
  • the loading assembly cooperates with at least a device suitable to temporarily retain the loaded trunk before it is discharged onto the feed assembly; it is thus possible to coordinate the movements of the two assemblies, and also to avoid downtimes while waiting for a new trunk to load.
  • the feed assembly can be of any type whatsoever, with rollers, rails, conveyor belt, etc.;
  • the feed assembly has a sliding channel along which the trunks are thrust towards the cutting assembly by a thruster device; in another variant, the feed assembly cooperates with means to detect the presence of the trunk.
  • the machine according to the invention has means to automatically detect the length of the trunk at inlet.
  • the value detected is processed by the control and drive unit, which coordinates the feed assembly and the cutting assembly to divide the trunk into a suitable number of sections each of a length which is a sub-multiple of the length of the trunk, so that no trailing end sections are fed which are too short to be used.
  • the cutting assembly performs a series of transverse cuts on the trunk fed by the feed assembly.
  • the cutting assembly has at least a saw with a circular blade and cooperates with the gripper assembly which clamps the trunks in position during the cutting operation.
  • the circular blade cuts the trunks from the bottom to the top.
  • Each section of trunk produced by the cutting assembly is then translated by the translation assembly to a chopping assembly which has the function of chopping each of the sections into a suitable number of pieces or segments of firewood.
  • the translation assembly is a sloping surface; according to a variant it has thruster elements which at end-of-travel turn the section onto the chopping assembly.
  • the translation assembly comprises at least an element with a tray which can be moved and/or overturned.
  • it has a plurality of tray elements which move in sequence into correspondence with the chopping assembly, carrying the cut sections; according to a variant, the tray elements are arranged on the circumference of a rotary disk.
  • the chopping assembly has a thruster assembly suitable to progressively thrust the section of trunk against a chopping grid equipped with chopping blades.
  • the number and arrangement of the chopping blades determines the number and shape of the parts or segments into which each section is chopped.
  • the chopping grid is divided into several sectors, each of which is characterised by its own different arrangement, or pattern, of the chopping blades.
  • the grid is movable so that one sector at a time is positioned in correspondence with the thruster assembly; this allows to vary the number and shape of the pieces of wood produced by every chopping operation, and also to choose the pattern of the blades most suitable for the diameter of the section of trunk.
  • the grid is governed by actuators which can be activated manually.
  • the actuators are automatically driven by the control and drive unit according to the diameter of the section to be chopped; this allows the sector of the grid to be positioned in the most suitable position for the section to be chopped, and also allows the sector to be centered with respect to the section itself.
  • the means to detect the diameter are associated, or cooperate with, the gripper assembly.
  • the grid is polygonal in shape and can be moved horizontally and/or vertically with respect to the thruster assembly.
  • the grid is circular, or similar in shape, and can rotate on its own center to position one sector at a time in correspondence with the thruster assembly.
  • the wood cutting/chopping machine 10 essentially consists of a loading assembly 11 for trunks 12, a feed assembly 13, a cutting assembly 14, a gripper assembly 29, a translation assembly 25 and a chopping assembly 15, arranged in sequence.
  • a carrier assembly 16 in this case a conveyor belt, to transport the segments 49 produced.
  • the loading assembly 11 comprises a frame to support two pairs of toothed wheels 17 driven by respective chains 18; shaped brackets 19 are associated, at a pre-set distance, to the links of the chains 18, in this case six brackets 19 for each chain 18, to grip, raise and discharge the trunks 12.
  • trunks 12 are conveyed from a stacking zone to the loading assembly 11 by means of a sloping surface 21.
  • the brackets 19 have a surface on which the trunks 12 rest consisting of a hook-shaped profile which has one part higher towards the chain 18; it is thus possible to prevent the trunks 12 knocking against the chain 18 as they roll on the sloping surface 21, and also to support trunks 12 of any diameter whatsoever.
  • the loading assembly 11 discharges the raised trunks 12 one by one onto the sliding channel 20 of the feed assembly 13.
  • the assembly 58 comprises a sloping surface 59 cooperating with a pair of arms 60 which move alternately from a position of interference 60a with the trunk 12 to a position of non-interference 60b which allows the trunk 12 to roll onto the sliding channel 20.
  • the sliding channel 20 is V-shaped in section, so as to contain the trunks 12 laterally.
  • the driven trolley 22 travels along a rail 23, for example a rack rail, moving from a starting position 22a, at the beginning of the sliding channel 20, to an end position 22b at the end of the sliding channel 20.
  • the beginning and end of the sliding channel 20 coincide respectively with the end farthest from and nearest to the cutting assembly 14.
  • the driven trolley 22 includes thruster means 24, an oil dynamic piston in this case, to vary the distance of the end of the trunk 12 from the body of the trolley 22.
  • the thruster means 24 may move to any position between a retracted position 24a and a position of maximum extension 24b; it is thus possible, as described later, to thrust, locate and center onto the translation assembly 25 also the last section 12 cut.
  • auxiliary thrust means 47 in this case of the same type as the means 24 and opposite thereto (Fig. 1).
  • the cutting assembly 14 shown in detail in Figs. 4a-4b, has a trolley 55 to support at least one saw 27, in this case with a circular blade 28, driven by means of a transmission belt 62, by an electric motor 61.
  • the belt 62 drives a pulley 63 which makes the blade 28 rotate by means of a rotary shaft 64.
  • the supporting trolley 55 is equipped with ascending/ descending motion, in this case driven by a vertical oil dynamic actuator 54, so that the circular blade 28 moves to at least two extreme positions, respectively the lowered position, or position of non-interference 28a, and the raised or cutting position 28b.
  • the blade 28 cuts the trunks from the bottom upwards.
  • the supporting trolley 55 can be removed from the frame of the cutting assembly 14; this facilitates maintenance of the saw 27.
  • the combined trolley 55-motor 61-saw 27 is assembled on another trolley 65 which is able to move transversely with respect to the structure which contains it, to facilitate removal.
  • the ascending/descending movements of the trolley 55 are correlated to the advance of the trolley 22.
  • the trolley 22 is made to advance at least from a pre-determined point of the sliding channel 20 onwards, according to a pitch which defines the length of the individual sections into which the trunk 12 is divided; the sections correspond to a whole sub-multiple of the overall length of the trunk 12.
  • the pitches are calculated by an electronic control and drive unit 26, for example with programmable logic or similar.
  • the machine 10 has monitoring means, for example optical monitoring means, to monitor the presence of the trunk 12 loaded onto the feed assembly 13, and also means to measure the length of the said trunk 12.
  • monitoring means for example optical monitoring means
  • the means to measure the length of the trunk 12 comprise an encoder which detects the space covered by the trolley 22 from the starting position 22a until it stops, which is when the leading end of the trunk 12 reaches the proximity of a sensor, such as a photocell, located in correspondence with the beginning of the cutting assembly 14 or the end of the sliding channel 20.
  • the control and drive unit 26 processes the data supplied by the encoder and, knowing the length of the sliding channel 20, calculates the length of the trunk 12 to be cut.
  • the machine 10 thus makes possible to divide the trunk 12 into sections of equal length and above all to prevent sections of the trailing end from advancing which would have to be discarded.
  • the trunks 12 are clamped in position by two gripper assemblies 29 consisting of pantograph arms comprising a pair of upper arms 30a pivoted in correspondence with the end facing upwards and constrained to the top of the frame of the cutting assembly 14.
  • the lower arms 30b in turn pivot on each other by means of a pin 31, substantially in correspondence with the center line.
  • the pin 31 is able to slide at one end in a vertical guide 32 along which it can slide upwards or downwards in response to, respectively, the actions of traction or of thrust exerted by an oil dynamic actuator 33 on one only of the two pins 34.
  • an oil dynamic actuator 33 When the oil dynamic actuator 33 is retracted, the lower ends of the lower arms 30b are lowered, gripping and clamping the trunk 12 in the cutting position.
  • the gripper assembly 29 When the trunk 12 is clamped, whatever its diameter, the gripper assembly 29 has its lower arms 30b positioned at 120° with respect to the plane on which the trunk 12 rests.
  • control and drive unit 26 determine the diameter of the trunk 12 by means of algorithms based only on the measurement of the travel made by the oil dynamic actuator 33.
  • the gripper assembly 29 monitors the diameter of the trunk 12 before the trunk 12 is cut, it is possible to establish the travel of the oil dynamic actuator 54 to move the supporting trolley 55 of the saw 27. Since the diameter is monitored for every section of trunk 12 cut, it is possible, as described later, to position and center the grid 43 of the chopping assembly 15 correctly, in order to obtain a number of segments proportional to the diameter and to center the center of the grid 43 with respect to the center of the section.
  • a section of trunk 12 is positioned on the translation assembly 25, in this case comprising two tray elements 35 driven by respective oil dynamic actuators 36 and aligned with the sliding channel 20.
  • the tray elements 35 On a first lower face, facing towards the chopping assembly 15, the tray elements 35, in this case V-shaped, have wheels 37 running on guides 38, and on the opposite lower face they are associated with the piston of the oil dynamic actuator 36.
  • the piston of the oil dynamic actuator 36 is extended so that the tray element 35, sliding on guides 38, progressively moves towards the chopping assembly 15 until it reaches an end-of-travel and turnover position 35b.
  • the wheels 37 cooperate with a sloping surface 39 which causes the tray elements 35 to partly turn over forwards, and therefore the cut section of trunk 12 to turn over onto the tray element 40 of the chopping assembly 15.
  • the section 12 occupies only the tray element 35 nearest the trolley 22, while the other tray element 35 is free; this allows the thruster means 24 to move to a condition of maximum extension 24b to push the already cut section 12 onto the tray element 35 farthest from the trolley 22.
  • the farthest tray element 35 is activated to turn over the section of trunk 12 onto the tray element 40 of the chopping assembly 15 while a new section is cut onto the tray element 35 nearest the trolley 22.
  • the tray element 40 hinges on the side of the thruster element 42 of the chopping assembly 15 and oscillates downwards at the front part contrasted by a spring 41 which allows it to respond elastically to the stresses to which it is subjected when the section of trunk 12 is chopped; this oscillation, moreover, facilitates the section to open, rose-like, and the lower segments to run out along the grain caused by the chopping action.
  • the chopping assembly 15 consists of a frame to support the tray element 40, the thruster element 42 driven by an oil dynamic piston 56, associated by means of rods to the rear end of four cross pieces 57, of which the two upper ones act as guide means for the thruster element 42, and at least a chopping grid 43 mounted on a grid-bearing frame.
  • the grid-bearing frame consists of two platbands, upper 66a and lower 66b, separated in height by three vertical bars which are aligned with the vertical chopping blades 48 of each chopping grid 43.
  • the grid-bearing frame consists of two platbands, upper 66a and lower 66b, separated in height by three vertical bars which are aligned with the vertical chopping blades 48 of each chopping grid 43.
  • the tubular spacers 53 cooperate so that the grid 43 does not rotate during the chopping step.
  • the thrust exerted on the grid-bearing frame is contrasted by two small cross pieces, the upper 67a and the lower 67b, attached to the rods 68 which connect the two heads by means of bolts 69.
  • the chopping grid 43 is rectangular with its long sides parallel to the plane which supports the machine 10 and cooperates both above and below with wheels 44 located on tubular frames 70 located both above and below the relative platbands 66a, 66b.
  • the grid-bearing frame is associated with an oil dynamic actuator 45, governed by the control and drive unit 26, which allows the chopping grid 43 to be displaced to the left and to the right in a controlled manner.
  • the grid-bearing frame is moved by a driven pinion; in this variant, which is not shown here, the chopping grid 43 has its short sides parallel to the plane supporting the machine 10 and translates vertically.
  • the chopping grid 43 is circular or similar, and can rotate around its center.
  • the translation or, possibly, rotation movements of the chopping grid 43 make possible to vary the size, number and/or shape of the segments 49 obtained according to necessity, and to center the grid with respect to the section of trunk 12.
  • the chopping grid 43 is divided into three sectors, respectively left 43a, central 43b and right 43c, each one characterised by a different arrangement of the chopping blades 48.
  • the right sector 43c is used to chop sections of trunk 12 of limited diameter, and the chopping blades 48 are arranged in a cross to divide the sections of trunk 12 into quarters.
  • the chopping blade 48 arranged horizontally is movable upwards or downwards, which allows to move it to a position of non-interference to divide the section of trunk 12 in half.
  • the central sector 43b is used to chop sections of trunk 12 with medium diameters, and the chopping blades 48 are arranged in a dial to allow the sections of trunk 12 to be divided into six parts.
  • the left sector 43c is used to chop sections of trunk 12 with a large diameter, and the chopping blades 48 are arranged in a dial to divide the sections into eight parts.
  • the thruster element 42 moves progressively from a start-of-chopping position 42a to an end-of-chopping position 42b, progressively pushing the section of trunk 12 towards the chopping blades 48.
  • the positioning of a specific sector 43a, 43b or 43c opposite the tray element 40 is automatically managed by the control and drive unit 26; according to a variant, this positioning is commanded by the operator.
  • the data supplied by the diameter measuring means is processed by the control and drive unit 26 which activates the oil dynamic actuator 45, or the movement means otherwise provided, to locate the sector 43a, 43b or 43c most suitable for the diameter of the trunk 12 being worked.
  • control and drive unit 26 centers the center of the grid with respect to the center of the section to be chopped.
  • FIGs. 5a, 5b there is an oil dynamic actuator 50 associated, by means of a grooved bar 51 crossing above the grid 43, with the chopping blades 48 of the chopping grid 43; the chopping blades 48 are associated with the chopping grid 43 by means of holed fork means 52 which slide along the tubular spacers 53 of the chopping grid 43.
  • the grooved bar 51 can rotate by means of a pinion and rack 71 to drive the oil dynamic actuator 50, which allows to move vertically the grid-bearing frame so as to carry out this centering.
  • the pieces 49 of chopped firewood fall onto the carrier assembly 16 which conveys them to a storage zone or directly into the containing body of a truck.
  • Figs. 8a-8b, 9a, 9b is used in the machine 10 as an alternative to the translation assembly 25 to move the sections of trunks 12 cut to size from the cutting assembly 14 to the chopping assembly 15.
  • This embodiment which considerably increases the productivity of the machine 10, includes a rotary disk 72 underneath the chopping assembly 15.
  • the rotary disk 72 has respective tray elements 46, in this case four arranged at 90° to each other, cushioned like the tray element 40 as described above, which in this case is absent inasmuch as the trays 46 perform both the function of the tray 35 of the translation assembly 25 and also the function of the tray 40 of the chopping assembly 15.
  • the section of trunk 12 is supported, both during the cutting operation and during the chopping operation, by the individual tray elements 46 which, following the rotations of the disk 72, move one by one opposite the thruster element 42, transporting one section.
  • the feed assembly 13 and the cutting assembly 14 are rotated in a clockwise direction by 90° with respect to Fig. 1, which allows the section cut by the cutting assembly 14 to be arranged lengthwise to the tray element 46 and to move in correspondence with the thruster element 42 with the fibres orthogonal with respect to the chopping blades 48.
  • the trunk 12 is fed by the feed assembly 13 which is not shown here and arrives, moved at pitch, from the direction of the arrow A; it is positioned with its front end, calculated to size, on the tray 46 in position I.
  • the saw 27 acts on the trunk 12 and cuts the section located on the tray 46; then the rotary disk 72 rotates by 90° and positions the cut section in correspondence with the position indicated as II.
  • This position II of the tray 46 is aligned with the axis of the thruster element 42 and with the chopping grids 43; when the thruster element 42 is activated, this causes the section to be chopped into pieces 49.
  • the thruster element 42 retracts and a new section, cut by the saw 27 during the previous chopping cycle, is taken to the chopping position by the rotation of the disk 72.
  • the tray 46 in the chopping position II, cooperates at the lower part with a shock absorber element consisting of a support 75 associated with spring means 41.
  • the support 75 elastically yielding to the pressure exerted by the section of trunk 12 during the chopping action, facilitates and makes the chopping action qualitatively better, preventing the chopping blades of the grid 43 from jamming against the cutting surfaces, and ruining them.
  • the center of rotation 73 of the rotary disk 72 is displaced sideways with respect to the cutting axis 74 of the saw 27, which coincides with the axis of arrival of the trunk which is to be cut as fed by the feed assembly 13; this prevents interference, during the rotation of the disk 72, between the front end of the trays 46 and elements of the cutting assembly 14 or other structural elements of the machine 10.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Sawing (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Claims (31)

  1. Machine automatique électronique à couper / à fendre le bois (10) pour la production de tronçons ou de quartiers (49) de bois à brûler à partir de troncs (12) privés de leurs branches, eux-mêmes prélevés d'une zone d'empilement. Cette machine comprend, en coopération coordonnée: un groupe de chargement (11) pour le prélèvement automatique des troncs (12) de la zone d'empilement et leur dépôt sur un groupe d'avance longitudinale (13) avec un couloir de glissement (20) ; un groupe de coupe (14) placé à la suite du groupe d'avance longitudinale (13) pour la subdivision des troncs (12) en segments de longueur prédéterminée, caractérisé par un groupe de pincement (29) placé en coopération avec le groupe de coupe (14) pour le maintien temporaire des troncs (12) pendant l'opération de coupe et la mesure du diamètre des troncs (12) ; un groupe de translation (25) des segments de tronc (12) coupés placé tout de suite en aval du groupe de coupe (14) ; un groupe de fente (15), coplanaire et fondamentalement adjoint au groupe d'avance (13), pour la subdivision de ces segments de tronc coupés en nombre défini de tronçons ou de quartiers (49) et un groupe transporteur (16) placé tout de suite en aval du groupe de fente (15) pour l'évacuation et/ou le tri des tronçons ou des quartiers (49) produits. Ces groupes (11, 13, 14, 15, 16, 25, 29) sont asservis à un groupe électronique de contrôle et d'actionnement (26) associé au moins à des moyens pour la détermination automatique de la longueur des troncs (12).
  2. Machine comme à la revendication 1, caractérisée par le fait que le groupe de fente (15) comprend un élément pousseur (42) coopérant au niveau inférieur avec un élément à plateau (40, 46) de soutien du segment de tronc (12) à fendre et de face avec une grille (43) de fente à secteurs multiples (43a, 43b, 43c), chaque secteur (43a, 43b, 43c) de la grille (43) présentant des lames coupantes (48) pour une disposition ou un dessin différents.
  3. Machine comme à la revendication 2, caractérisée par le fait que la grille (43) est associée à un châssis porte-grille se mouvant sur le plan d'emplacement de l'élément pousseur (42).
  4. Machine comme à la revendication 2, caractérisée par le fait que la grille (43) est associée à un châssis porte-grille se mouvant orthogonalement au plan d'emplacement de l'élément pousseur (42).
  5. Machine comme à l'une ou l'autre des revendications précédentes, caractérisée par le fait que le châssis porte-grille est associé à des moyens de positionnement (45) asservis au groupe électronique de contrôle et d'actionnement (26) en fonction du diamètre du segment de tronc (12) à fendre et/ou du secteur (43a,43b,43c) à positionner.
  6. Machine comme à l'une ou l'autre des revendications précédentes, caractérisée par le fait que le châssis porte-grille est associé à des moyens de réglage de la position (50, 51) en fonction de la collimation du centre du secteur (43a, 43b, 43c) par rapport au centre du segment de tronc (12).
  7. Machine comme à l'une ou l'autre des revendications précédentes, caractérisée par le fait que le châssis porte-grille comprend deux plates-bandes (66a, 66b), parallèles au plan de coupe, liées solidairement aux lames coupantes (48) et à des pièces d'entretoise tubulaires (57) auxquelles elles sont transversales, le châssis porte-grille comprenant en outre des traverses (67a, 76b) solidaires aux tirants (68) de raccordement entre les têtes de la machine.
  8. Machine comme à l'une ou l'autre des revendications précédentes, caractérisée par le fait que l'élément à plateau (40, 46) oscille vers l'avant en fonction des sollicitations occasionnées par le segment de tronc (12) pendant l'opération de fente.
  9. Machine comme à la revendication 8, caractérisée par le fait que l'élément à plateau (40, 46) est fixé au niveau inférieur par des charnières sur le côté tourné vers l'élément pousseur (42) et qu'il coopère sur le côté opposé avec des moyens élastiques (41) de contraste.
  10. Machine comme à la revendication 1, caractérisée par le fait que le groupe d'avance (13) se meut longitudinalement à pas, chaque pas étant en fonction d'un sous-multiple de la longueur du tronc (12).
  11. Machine comme à la revendication 10, caractérisée par le fait que le groupe d'avance (13) comprend un couloir de glissement (20) du tronc (12) coopérant avec des moyens de poussée (24) associés à un chariot (22), le chariot (22) présentant une position de départ (22a) coopérant avec le début du couloir de glissement (20) et une position d'arrivée (22b) coopérant avec la fin du couloir de glissement (20).
  12. Machine comme à la revendication 11, caractérisée par le fait que le couloir de glissement (20) comprend des moyens de détermination automatique de la longueur du tronc (12).
  13. Machine comme à la revendication 11 ou 12, caractérisée par le fait que les moyens de poussée (24) sont mobiles pour le centrage des segments de tronc (12) coupés sur le groupe de translation (25).
  14. Machine comme à la revendication 1, caractérisée par le fait que le groupe de pincement (29) présente des moyens pour la mesure du diamètre du segment coupé.
  15. Machine comme à la revendication 14, caractérisée par le fait que le groupe de pincement (29) comprend des bras à pantographe (30a, 30b), la première paire supérieure (30a) des bras ayant ses extrémités supérieures montées sur pivots au même point au sommet du châssis du groupe de coupe (14) et ses extrémités inférieures montées sur pivots (34) à l'extrémité supérieure des bras inférieurs (30b) respectifs, les bras inférieurs (30b) étant à leur tour montés entre eux sur pivots (31) en correspondance de la ligne médiane, le pivot (31) glissant le long d'une coulisse verticale (32) en réponse aux actions de traction ou de poussée exercées par un actionneur (33) agissant sur un seul des deux pivots (34).
  16. Machine comme à la revendication 15, caractérisée par le fait que les extrémités inférieures des bras inférieurs (30b) présentent une première position abaissée de blocage du tronc (12) en position de coupe associée à la position retirée de l'actionneur (33) et une seconde position rehaussée de non interférence associée à la position d'extension de l'actionneur (33).
  17. Machine comme à l'une ou l'autre des revendications de 14 à 16, caractérisée par le fait que les moyens pour la mesure du diamètre du segment comprennent un actionneur pour la détermination de la course effectuée par l'actionneur (33).
  18. Machine comme à l'une ou l'autre des revendications de 14 à 17, caractérisée par le fait que les bras inférieurs (30b), quel que soit le diamètre du tronc (12), sont toujours disposés à 120° par rapport au plan d'emplacement du tronc (12).
  19. Machine comme à la revendication 1, caractérisée par le fait que le groupe de coupe (14) présente au moins une scie (27) à lame circulaire (28) associée à un chariot de support (55) se mouvant verticalement et définissant, pour la lame (28), une première position abaissée (28a) de non interférence et une seconde position rehaussée de coupe (28b).
  20. Machine comme à la revendication 19, caractérisée par le fait que le chariot de support (55) est actionné par des actionneurs (54) se mouvant en fonction du diamètre du tronc (12).
  21. Machine comme à la revendication 19, caractérisée par le fait que le chariot de support (55) peut être retiré de la structure portante de la machine (10).
  22. Machine comme à la revendication 1, caractérisée par le fait que le groupe de translation (25) comprend des éléments à plateau (35, 46).
  23. Machine comme à la revendication 22, caractérisée par le fait que l'une des extrémités de l'élément à plateau (35) est associée à un actionneur (36) et que l'élément à plateau (35) présente une position de coupe (35a) coopérant avec le groupe de coupe (14) et une position de fin de course et de basculement (35b) de déchargement du segment (12) coupé sur le groupe de fente (15).
  24. Machine comme à la revendication 22, caractérisée par le fait que les éléments à plateau (35) sont au nombre de deux : un premier élément à plateau (35) soutenant un segment de tronc (12) à couper et un second élément à plateau (35) déchargeant le segment coupé sur le premier élément à plateau (35) et le poussant sur ce second élément à plateau (35).
  25. Machine comme à la revendication 22, caractérisée par le fait que les éléments à plateau (46) sont associés à un disque rotatif (72).
  26. Machine comme à la revendication 25, caractérisée par le fait que le disque rotatif (72) est apte à porter un plateau (46) d'une première position (I), alignée au groupe d'avance longitudinale (13), où est reçu le tronc à couper, à une seconde position (II), alignée à l'axe de la grille de fente (43), où le segment de tronc (12) est coupé.
  27. Machine comme à la revendication 25 ou 26, caractérisée par le fait que le disque rotatif (72) tourne autour d'un axe de rotation (73) déplacé latéralement par rapport à l'axe d'avance (74) du groupe d'avance (13).
  28. Machine comme à la revendication 1, caractérisée par le fait que le groupe de chargement (11) présente des paires de roues dentées (17) motorisées actionnant des chaínes (18) dont les mailles sont associées à des éléments à étagère (19) pour supporter et lever les troncs (12) à la hauteur souhaitée.
  29. Machine comme à la revendication 28, caractérisée par le fait que les éléments à étagère (19) présentent un profil à crochet.
  30. Machine comme à la revendication 28, caractérisée par le fait qu'un plan incliné (21) est situé en amont du groupe de chargement (11) pour le roulement des troncs (12) provenant de la zone d'empilement.
  31. Machine comme à la revendication 28, caractérisée par le fait qu'un groupe (58) de maintien temporaire des troncs (12) soulevés avant le déchargement sur le groupe d'avance (13) est situé en aval du groupe de chargement (11).
EP98117133A 1997-09-11 1998-09-10 Machine automatique électronique à couper et à fendre du bois Revoked EP0901892B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97UD000155A IT1294630B1 (it) 1997-09-11 1997-09-11 Macchina automatica elettronica taglia/spacca legna
ITUD970155 1997-09-11

Publications (3)

Publication Number Publication Date
EP0901892A2 EP0901892A2 (fr) 1999-03-17
EP0901892A3 EP0901892A3 (fr) 1999-05-19
EP0901892B1 true EP0901892B1 (fr) 2001-11-21

Family

ID=11422453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117133A Revoked EP0901892B1 (fr) 1997-09-11 1998-09-10 Machine automatique électronique à couper et à fendre du bois

Country Status (6)

Country Link
EP (1) EP0901892B1 (fr)
AT (1) ATE209086T1 (fr)
DE (1) DE69803259T2 (fr)
DK (1) DK0901892T3 (fr)
ES (1) ES2167825T3 (fr)
IT (1) IT1294630B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503076B1 (de) * 2006-01-04 2008-09-15 Christian Beckereit Holzspaltvorrichtung

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10354265B4 (de) * 2002-11-19 2006-05-04 Glasschröder, Adolf Doppelholzspalter
ITUD20030018A1 (it) * 2003-01-24 2004-07-25 Mauro Pinosa Macchina automatica o semi automatica per la preparazione di legna da ardere.
DE10302906A1 (de) * 2003-01-24 2004-08-05 Christian Kessler Holzbearbeitungsvorrichtung
FR2871720A1 (fr) * 2004-06-16 2005-12-23 Espace Bois Services Entpr Uni Procede d'obtention de buchettes et dispositif pour sa mise en oeuvre
FR2948054B1 (fr) * 2009-07-16 2011-09-02 Rabaud Sa Perfectionnement aux installations pour la decoupe de billes ou de buches de bois par sciage et/ou fendage
FI125335B (fi) * 2010-05-14 2015-08-31 Reikälevy Oy Katkaisu- ja pilkkomislaite
FI126314B (fi) * 2012-07-11 2016-09-30 Regon Ay Klapikone
KR101517211B1 (ko) 2013-05-30 2015-05-06 김곤 목재 펠릿 성형용 절단장치
ITUD20130121A1 (it) * 2013-09-17 2015-03-18 Forenergy Di Luigi Pinosa Impresa I Ndividuale Macchinario e procedimento per la lavorazione di tronchi, ramaglie o simili
DE202013008587U1 (de) 2013-09-27 2015-01-09 Gert Weersmann Holzspalter (Liegendspalter) mit einem Schwungradantrieb
DE102014110968A1 (de) * 2014-08-01 2016-02-04 Stader Metall Gmbh & Co. Kg Holzsäge- und Holzspaltvorrichtung zum Sägen und Spalten von Holz
FI128348B (en) * 2016-02-10 2020-03-31 Ylistaron Teraestakomo Oy Firewood with movable splitting blade
CN106272767B (zh) * 2016-10-10 2019-03-08 南宁职业技术学院 一种新型竹筒破削机
FI20175546A1 (fi) * 2017-06-13 2018-12-14 Agromaster Oy Pilkekoneen halkaisuterärakenne
CN108858470B (zh) * 2018-07-26 2020-08-11 贵州鑫大福门业有限公司 带有导向装置的裁板锯

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281697A (en) * 1977-08-04 1981-08-04 Lafont Corporation Firewood systems
US4284112A (en) * 1977-12-14 1981-08-18 Hoskin Charles E Automatic wood cutting and splitting machine
US4160470A (en) * 1978-03-13 1979-07-10 Timbern, Ltd. Log shearing and splitting device
US4294295A (en) * 1978-09-25 1981-10-13 Bloomfield Farms, Inc. Apparatus for cutting and splitting firewood
US4373564A (en) * 1980-11-13 1983-02-15 Heikkinen Leo L Self-propelled wood processing apparatus
DE3312596A1 (de) * 1982-05-18 1983-12-08 Walter Kretzer, Landtechnik und Gerätebau, 7951 Oberessendorf Vorrichtung zur automatischen bearbeitung von holzstaemmen
US4834154A (en) * 1988-08-31 1989-05-30 The Nunnery Wood Processor Co. Firewood processor
FR2716831B1 (fr) * 1994-03-03 1996-04-19 Critt Bois Procédé d'optimisation de fendage du bois.
US5791389A (en) * 1997-03-28 1998-08-11 Yvonne Company Apparatus and method for forming firewood logs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503076B1 (de) * 2006-01-04 2008-09-15 Christian Beckereit Holzspaltvorrichtung

Also Published As

Publication number Publication date
EP0901892A3 (fr) 1999-05-19
DK0901892T3 (da) 2002-05-13
EP0901892A2 (fr) 1999-03-17
IT1294630B1 (it) 1999-04-12
ES2167825T3 (es) 2002-05-16
DE69803259D1 (de) 2002-02-21
DE69803259T2 (de) 2002-08-08
ATE209086T1 (de) 2001-12-15
ITUD970155A1 (it) 1999-03-11

Similar Documents

Publication Publication Date Title
EP0901892B1 (fr) Machine automatique électronique à couper et à fendre du bois
US4078592A (en) Log feed mechanism for sawmills
CN107443508B (zh) 竹材自动进料定段设备
CN107877006B (zh) 一种全自动数控激光切管机
US4340137A (en) Cant movement and aligning mechanism
US4676130A (en) Lumber edger
CA2077777C (fr) Installation et methode de separation et de manutention
US4907632A (en) Process and apparatus for the feeding of tree trunks to a processing machine
KR960006832B1 (ko) 절단기에서의 공작물 이송방법 및 장치
US5579671A (en) Automatic stem cutting apparatus and method
CA2218171C (fr) Systeme d'alimentation automatique
US4628781A (en) Lumber mill system
US6279441B1 (en) System and apparatus for cutting logs into shorter lengths
US4823664A (en) Tandem sawmill assembly
US20110253261A1 (en) Automatic Workpiece Edging and Ripping Device and Method
EP0316256A2 (fr) Procédé et dispositif pour le prétraitement et l'écorçage des grumes de bois
CA2190339A1 (fr) Support de scie
US20040016334A1 (en) Log merchandiser
CN106975966A (zh) 长棒料定长输送与收集装置
CN210477266U (zh) 一种剖竹机上料结构
CN210477226U (zh) 一种可调式圆木双侧加工机
US3138258A (en) Method and apparatus for sorting automatically logs and like objects
EP1258306A2 (fr) Système de détection d'inégalités de dimensions de plaques decoupées
CA1058063A (fr) Element de scierie portable
CN219748356U (zh) 一种锯竹机

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FR GB IT LI NL PT SE

AXX Extension fees paid

Free format text: SI PAYMENT 19991122

17P Request for examination filed

Effective date: 19991118

RAX Requested extension states of the european patent have changed

Free format text: SI PAYMENT 19991118

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PINOSA SRL

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ORLANDO, MAURIZIO

Inventor name: DELLA ROSSA, ERCOLE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010402

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

AX Request for extension of the european patent

Free format text: SI PAYMENT 19991118

REF Corresponds to:

Ref document number: 209086

Country of ref document: AT

Date of ref document: 20011215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: MICHELI & CIE INGENIEURS-CONSEILS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020221

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020221

REF Corresponds to:

Ref document number: 69803259

Country of ref document: DE

Date of ref document: 20020221

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2167825

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: PEZZOLATO OFFICINE COSTRUCIONI MECCANICHE SPA

Effective date: 20020507

NLR1 Nl: opposition has been filed with the epo

Opponent name: PEZZOLATO OFFICINE COSTRUCIONI MECCANICHE SPA

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20060914

Year of fee payment: 9

Ref country code: CH

Payment date: 20060914

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20060915

Year of fee payment: 9

Ref country code: DK

Payment date: 20060915

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060921

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060922

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060926

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20060928

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20061012

Year of fee payment: 9

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20070706

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20070706

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLR2 Nl: decision of opposition

Effective date: 20070706

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20140926

Year of fee payment: 17