Patent ID: 6725891
Filing Date: 2004-04-27
Classification: B23Q,B27F,B27M

Abstract:
Machine for profile working of front surfaces on oblong wood workpieces, the machine comprising: a transverse entrance and exit roller conveyor and an intermediate feed line conveyor driven by means of an endless conveying chain, inside of the intermediate feed line conveyor there is placed a rotating device for turning over the workpieces, and constructed of a drive-shaft fastened with rotating wheels, and along with the intermediate feed line conveyor there are side guiding laths for front straightening of the workpieces, also along the intermediate feed line conveyor are fixed working units, by which the workpieces move lineally in a direction so that the workpieces lie perpendicular to the working units, and the workpieces are thereby rigidly clamped in a clamping unit, whereby the working units are formed by a circular saw and profile miller in a given series, constructed bearing couplings are arranged along an entire extent of the rotating wheels of the entrance turnover device, the constructed bearing couplings have rotating leaning rolls inside a bearing plate, at least on one rotating wheel, there are likewise along the entire extent constructed bearing couplings with two pairs of rotating leaning rolls and inside bearing plates, which are circularly movably fastened on the rotating wheels at a rotating point, with a guided bearing is movably and guidable placed by an external edge of a guiding plate or inside it's a groove which round up the guiding plate on its major extent, whereby there is at one rotating wheel constructed at least one guiding plate; in which the endless conveying chain runs between longitudinal conveyers with carriers has at least one clamping unit, which is longitudinally limited by at least two distant one from another and fixedly positioned vertical ribs, whereby at one there is fastened a fixed leaning plate, and opposite to it there is fastened a clamping mechanism with a pair of shears-like constructed cranks, which are with one of its end radially movably and through a pin rounded up by a return spring joined in a joint rotating point, and with the other end they are likewise radially movably, but separately and through the rotating point joined by at least one clamping cylinder with a jaw, while on the opposite side of a housing basic plate of the clamping unit there is placed a mirror-inverted fixed pair of side guides with inserted guide bearings of the endless conveying chain, and from an external side there is upon the side guides fixed a girder with at least one control field and control indicator adjacent to it; an oblique roller conveyor with a housing is placed in the entrance turnover device area, and over clamping units on the endless conveying chain, inside the oblique roller conveyor there are flexibly and circularly movably inserted at least one knurled roll and at least one smooth roll in a way that their longitudinal axes limit an internal angle, whereby their ends are together rotationally and flexibly joined in a rotating point by an oscillating lever, which is through the rotating point radially movably joined with the girder, and through the rotating point radially and lineally movably joined with the cylinder fastened to the girder in the rotating point, while by the opposite end the rolls are likewise rotationally and flexibly joined with cantilevers which are in the longitudinal and transverse direction flexibly inserted in an adjacent oscillation stabilizer, whereby the knurled roll is driven by its own drive, and the smooth roll is driven by its own drive; in which the rotating wheels of the exit turnover device are constructed in a chain wheel form with toothed outgrowths placed all over the rotating wheel, under an angle tilted in a direction opposite to the rotation, whereby there is on of each toothed outgrowth and in the rotating point radially movably fastened at least one bearing crank, which is through an endless chain connected with a control chain wheel, upon which there is fixed at least one control panel and is together with it circularly movably fastened to the rotating wheel basic plate in the rotating point in a way that they are positioned under the toothed outgrowth, and that the movable bearing placed on the top of the control panel is rotationally and guidably inserted inside a channel guide, which is placed on one of larger surfaces of the rotating wheel and parallel to it, and that it is fixed on the girder.