Abstract:
Embodiments provide a log positioning system configured to transport a log through one or more chipper/profiler modules to produce a cant with four chipped/profiled sides. In some embodiments, a log processing system may include an infeed, a positioning feed module downstream of the infeed, and one or more chipper/profiler modules disposed proximal to the positioning feed module. The positioning feed module may include a sharp chain coupled to one or more pairs of vertical positioning rolls. The positioning feed module may be selectively skewed, slewed, and/or tilted to match the vertical and angular orientation of the infeed.
Abstract:
Embodiments provide a log positioning system configured to transport a log through one or more chipper/profiler modules to produce a cant with four chipped/profiled sides. In some embodiments, a log processing system may include an infeed, a positioning feed module downstream of the infeed, and one or more chipper/profiler modules disposed proximal to the positioning feed module. The positioning feed module may include a sharp chain coupled to one or more pairs of vertical positioning rolls. The positioning feed module may be selectively skewed, slewed, and/or tilted to match the vertical and angular orientation of the infeed.
Abstract:
Processing of a cant may include determining a rotational orientation about a longitudinal axis of the cant that optimizes a recovery from the cant from subsequent sawing operations. Such may include optimizing a width of a board that will be produced dependent on the particular rotational longitudinal orientation. Such may include determining a surface area of a board which would be produced, a thickness of a board that would be produced, and/or a volume of a board that would be produced. Such may include accounting for any premium associated with various width categories in which a board that would be produced would fit. Such may account for any premium associated with grade or quality of a board that would be produced. A corresponding signal may provide information to a human operator and/or automated machinery to orient the cant in an optimized orientation.
Abstract:
Embodiments of techniques and systems for log stability determination are described. A log position optimizer may be configured to identify one or more rest positions for a log to be conveyed on a sharp chain. The rest positions may be identified based on identification of contact points where the sharp chain may contact the log that have no intervening contact points that prevent stable contact between the log and the sharp chain. A preferred rest position may be selected out of the identified rest positions. The preferred rest position may be selected based on determination of which contact points are stable or unstable. This determination may be made for each contact point in a cross-sectional plane of the log. The log position optimizer may then control a log positioning mechanism to position the log in the selected rest position. Other embodiments are also described and claimed.
Abstract:
Embodiments provide a log positioning system configured to transport a log through one or more chipper/profiler modules to produce a cant with four chipped/profiled sides. In some embodiments, a log processing system may include an infeed, a positioning feed module downstream of the infeed, and one or more chipper/profiler modules disposed proximal to the positioning feed module. The positioning feed module may include a sharp chain coupled to one or more pairs of vertical positioning rolls. The positioning feed module may be selectively skewed, slewed, and/or tilted to match the vertical and angular orientation of the infeed.
Abstract:
An elevating and clewing continuous log turner includes a mainframe having a movable frame adapted for vertical or horizontal translation relative to the mainframe. A rotating group is mounted in the movable frame. The rotating group has a passageway therethrough. Roller arms are pivotally mounted around a perimeter of the rotating group. The roller arms concentrically clamp the log relative to the rotating group to thereby rotate the log about its longitudinal axis simultaneously with selective rotation of the rotating group. At least one actuator horizontally and vertically translates the movable frame relative to the mainframe.
Abstract:
A method for detecting the three-dimensional structure of a log comprises the operating steps of: making the log (2) rotate axially, leaving it free to translate during the rotation; during said rotation repeating the step of detecting the relative surface structure of the log (2) at least at one log surface portion (13), so that the relative surface structure of substantially all of the points of at least the log (2) lateral surface is detected at least once; and combining the relative surface structures detected to reconstruct an overall surface structure for at least the log (2) lateral surface. The detection steps are carried out in such a way that each detection step result shares at least several points with at least one other detection step result, whilst the step of combining the relative surface structures is carried out in such a way that the shared points are made to coincide with each other.The claims also cover an apparatus comprising means for supporting a log (2), means (5) for detecting the surface structure of the log (2) and control and processing means. There are also means (6) for making the log (2) rotate parallel with the log (2) main direction of extension (D).
Abstract:
A panel (2) turning device (1) applicable to a panel saw machine (4) comprises a panel (2) hold-down element (11) located in the vicinity of a lateral edge (5a) of the worktable (5) and acting on the panel (2) in such a way as to form a pivot (12) and an axis of rotation (R) in a defined area of the panel (2). The device (1) also comprises rubber wheels (15) built into the worktable (5), designed to enable the panel (2) to be turned about the pivot (12) and mobile between a rest position in which they are not in contact with the panel (2) and a working position in which they are in contact with the panel (2).
Abstract:
A panel saw machine for panels (2) comprises: a horizontal work table (3) for one or more panels (2) mobile on the horizontal table (3) along an axis of feed (X) in a forward direction (V1) and in a backward direction (V2); a panel (2) clamping unit (4) comprising a crossbar (5) equipped with one or more gripping elements (6) for clamping and retaining the panels (2) while they are being machined; a cutting unit (7) that divides the panels (2) into sub-panels by sawing the panels (2) along an axis (Y) transversal to the feed axis (X); a horizontal flat element or tray (8) positioned above the horizontal work table (3), for supporting and transporting the panels (2); means (9) for selectively holding the tray (8) in conjunction with means (10) for driving the tray (8) itself, acting on the latter and enabling the tray (8) to perform a first movement along the feed axis (X) in both directions (V1, V2) and, when required, a rotational movement (R) on the horizontal work table (3) in such a way as to vary the position of the tray (8) and, consequently, of the panels (2), with respect to the cutting unit (7).
Abstract:
A turning device comprises turning members moveable between an idle position and an operational position, a sensor located upstream of the turning member, for scanning the wood pieces on a conveyor, and an deflector controlled by the sensor and adapted, when actuated, to selectively cause the turning member to be displaced to the operational position for turning a given elongated wood piece on the conveyor to a desired position. The turning member is pivotally mounted to a motorised chain for continuously displacing the turning member adjacent the conveyor. The turning member also includes a guide pin, and the chain drives the turning member along a closed-loop guide track, the turning member having its guide pin engaged in the track.