Patent ID: 8479682
Filing Date: 2013-07-09
Classification: B05C,B65G

Abstract:
1. An apparatus for applying adhesive to the surface of expanded resin panels comprising: a gluing roller; a feeding conveyor for feeding a panel, which is arranged upstream of said gluing roller; a receiving conveyor for receiving said panel, which is arranged downstream of said gluing roller; said conveyors being mutually aligned on a supporting framework so as to have adjacent ends; and lifting means for moving said conveyors between a lowered position and a raised position, said lifting means being controlled by an element for detecting a panel conveyed by said feeding conveyor so as to lift or lower said conveyors to a level at which a surface of said gluing roller is in tangent contact with the panel in order to apply thereon a layer of adhesive; said feeding and receiving conveyors each comprising a frame, which has two, parallel beams, a pair of rollers supported at opposite ends of said beams, a belt which, is closed in a loop around said rollers and which is actuated by a gearmotor, said frames having their adjacent ends coupled to said lifting means and their opposite ends resting movably on rollers supported on said framework; said lifting means being constituted by a pair of lifting elements, each of which is composed of a plate-like element, which is fixed to said framework, by a pair of bushes, which are fixed to said plate-like element and are aligned vertically, by a threaded shaft, which is supported rotationally within said bushes, by a toothed pulley, which is keyed to one end of said shaft, and by a female thread, which is engaged on said shaft and is fixed to a slider element, which is guided vertically on said plate-like element, two respective pivots being pivoted in said slider element and being mounted at the adjacent ends of said frames of said conveyors, the pulleys of said lifting elements being actuated by an electric motor of the reversible type by means of a toothed belt, so as to actuate said threaded shafts to lift said slider elements until both conveyors are in tangent contact with said gluing roller.