Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27H—BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
  • B27H3/00—Manufacture of constructional elements of tubes, coops, or barrels
  • B27H3/02—Manufacture of barrel staves
• • 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
  • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
  • B27B1/007—Methods for subdividing trunks or logs essentially involving sawing taking into account geometric properties of the trunks or logs to be sawn, e.g. curvature
• • 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

Definitions

• the invention relates to a process for obtaining staves, as well as an installation for implementing this process.
• Barrels made with staves are intended to contain high-value liquids such as wines and spirits.
• the staves must have mechanical qualities superior to the boards in particular.
• the document FR-A-637.045 describes a process in which logs are cut into planks along mean and radial planes of the initial plank.
• Document WO-A-89 / 047.47 relates to the cutting, drying and optimization of boards.
• Document OA-92 / 16.339 describes a sawing process making it possible to obtain a high rate of vertical grain pieces, from a log.
• the document FR-A-2,716,831 describes the optimization on a half-log, of the production efficiency of staves.
• a representation such as image on one of the display systems is reversed to that of the other, in the manner of a mirror and / or each system diffuses the representation in substantially the same directions and directions than the other, for example to an operator's station.
• At least one display system provides for the production of representations as a function of internal non-destructive readings of the log, such as emission of waves or particles.
• at least one step provides for the representation of one or more locating surfaces by a display system, for example fused with and proportional to a representation by this system of at least one median radius, wire or the like.
• the measurement step is, for example following a transverse correction, followed by a step of seeking placement opposite a sawing trajectory, by synchronized movement of the two opposite faces of the log.
• a manual and / or automatic control for example connected and able to control at least one component of the reception and orientation means.
• the installation comprises at least one locating device capable of generating at least one visible locating surface, possibly deformable.
• the installation comprises at least one sawing carriage provided with independent claws, and with a system for controlling these claws as well as the advance of the carriage, capable of following a curved path for example.
• the gripping means comprise serrated, vertical, symmetrical and opposite knives and means for clamping these knives at controlled pressure so as to avoid any splitting by wedge effect.
• the installation comprises means for receiving and guiding logs or portions of logs, with angular guides corresponding respectively to a section of portion of log, such as eighth, sixteenth and thirty-second of log, at least one angular guide being movable, for example independently, vertically in similar pairs, and so as to be retracted, in particular under the effect of an automatic positioning control.
• the fibers only deform from the heart, the middle, or even a third of the radius two quarters.
• the tool 25 has its blade curved outwards on its side intended to be against the sapwood and / or the bark, while its other side is concave.
• a saw carriage 40 is illustrated in the figure
• These means 41 have angular guides 42, 43, 44 corresponding respectively to a section of the log portion, such as eighth, sixteenth and thirty-second of the log.
• This installation 24 comprises means of simultaneous location, at a distance for the medullary rays at its two ends; remotely or nearby for the wood grain on the external face and possible faults.
• the means for receiving and orienting the portions of the log are two pliers such as a compass, each of which is displaceable in at least one longitudinal and / or transverse direction.
• the installation 24 includes among others:
• the device further comprises means for receiving and guiding the logs with angular guides corresponding to the sections of the different portions of the log obtained, including quarter, eighth, sixteenth, and thirty-second logs.
• angular guides move independently and in similar pairs along a vertical axis; they are retractable and automatically position the log portions.
• means are provided for simultaneous identification: medullary rays at its two ends, wood grain on the external face and possible defects.
• the area of retractable angular positioning of the ridges, of video playback of the medullary rays at the two ends of the ridges and of video playback (or of reading assisted by a light beam) of the wood grain is shown in dashed lines under the reference. the external side possibly debarked and / or cleared of the sapwood.
• a lubricant of mineral origin such as diesel
• a food grade lubricant such as water or certain oils of vegetable or mineral origin, or another emulsion in water of these oils.
• Figures 37 to 41 illustrate a deformable template associated with a light plane which is also deformable.
• these light beams will be doubled on either side of the rule, distant by a given thickness e for a part like a duplicate, or twice the thickness of a stave.
• a matrix type camera of good definition, with slave lens and preferably with reverse image, connected to a monitor placed in front of the operator.
• claws are equipped with a system allowing to know exactly their abscissa position and ordered in relation to any point of the sawing or loading area.
• the sawing is then assisted by this computer which manages the movements of the claws and the carriage according to the orientation previously defined visually by the operator.
• the claws For curved sawing, the claws must move the log during sawing while exerting a constant clamping pressure.
• This portion is defined with respect to the cutting width and with respect to the path of the blade. It remains to know permanently the spacing of the claws to calculate, by simple trigonometric calculation, the position to be given to the claws.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Chemical And Physical Treatments For Wood And The Like (AREA)
• Pressure Welding/Diffusion-Bonding (AREA)
• Scissors And Nippers (AREA)
• Joining Of Building Structures In Genera (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9493779

Family Applications (1)

Country Status (9)

Cited By (2)

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Citations (3)

Family Cites Families (3)

• 1996
  • 1996-07-02 FR FR9608440A patent/FR2750636B1/fr not_active Expired - Fee Related
• 1997
  • 1997-07-02 ES ES97928384T patent/ES2148992T3/es not_active Expired - Lifetime
  • 1997-07-02 AT AT97928384T patent/ATE191875T1/de not_active IP Right Cessation
  • 1997-07-02 AU AU32701/97A patent/AU3270197A/en not_active Abandoned
  • 1997-07-02 DE DE69701737T patent/DE69701737T2/de not_active Expired - Fee Related
  • 1997-07-02 WO PCT/IB1997/000817 patent/WO1998000269A1/fr active IP Right Grant
  • 1997-07-02 PT PT97928384T patent/PT912305E/pt unknown
  • 1997-07-02 HU HU0104741A patent/HUP0104741A3/hu unknown
  • 1997-07-02 EP EP97928384A patent/EP0912305B1/de not_active Expired - Lifetime

Patent Citations (3)

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