摘要:
Laminar staple including two walls (2,3) which are substantially at right angles to each other and which form an edge (4) and two ribs (5,6) which extend substantially at right angles to the walls; the walls and the ribs form a cutting edge (7), and the ribs have two planar portions (5a,6a) substantially parallel to the edge which progressively diverge proximate to the cutting edge into circular arc portions (5b,6b).
摘要:
An apparatus for producing rectangular frames composed of strips (L) joined by joining elements inserted by fixing machines so as to straddle the joints formed by the right-angled mating of the strips, the strips being supplied in the intended sizes by a feeder (1), four fixing machines (30-33) being provided which are arranged on a footing at the corners of an ideal rectangle and are provided with devices (34-35) for arranging the strips along the sides of the rectangle. The apparatus comprises at least one working assembly (40,41) for picking up in succession the strips at the output of the feeder (1) and for placing them on the fixing machines (30-33), so that the ends of two contiguous strips are arranged at right angles on each fixing machine, the working assembly comprising a supporting beam (42) for a rail (44) for the horizontal sliding of a carriage (45) which comprises a guide (49) lying at right angles to the rail (44), a slider (51) being slideable on the guide (49) and articulately supporting, about a vertical axis, a strip engagement element (74), actuation elements (80,52,72) for actuating the carriage (45), the slider (51) and the engagement element (74) between a position in which the engagement element (74) picks up, in successive steps, the strips exiting from the feeder (1) and a position in which it deposits the strips so that the opposite ends of each strip lie on a pair of fixing machines (30-33) which are not diagonally opposite, the steps being coordinated so as to form a rectangle of strips resting on the fixing machines (30-33).
摘要:
A method for controlling the assembly cycle of strips for forming frames in assembling machines, comprising the steps of: reading, by means of a scanner, the cross-section of one of the strips that compose the frame in order to obtain a resulting image of the cross-section; digitizing the resulting image in binary format; graphically visualizing the cross-section; calculating dimensions of the cross-section; identifying points suitable for positioning the strip locking means; determining points of application of the stapling elements and the number of the elements to be applied in each point; activating the assembling machine to perform the stapling of the strips.
摘要:
An apparatus for producing rectangular frames composed of strips (L) joined by joining elements inserted by fixing machines so as to straddle the joints formed by the right-angled mating of the strips, the strips being supplied in the intended sizes by a feeder (1), four fixing machines (30-33) being provided which are arranged on a footing at the corners of an ideal rectangle and are provided with devices (34-35) for arranging the strips along the sides of the rectangle. The apparatus comprises at least one working assembly (40,41) for picking up in succession the strips at the output of the feeder (1) and for placing them on the fixing machines (30-33), so that the ends of two contiguous strips are arranged at right angles on each fixing machine, the working assembly comprising a supporting beam (42) for a rail (44) for the horizontal sliding of a carriage (45) which comprises a guide (49) lying at right angles to the rail (44), a slider (51) being slideable on the guide (49) and articulately supporting, about a vertical axis, a strip engagement element (74), actuation elements (80,52,72) for actuating the carriage (45), the slider (51) and the engagement element (74) between a position in which the engagement element (74) picks up, in successive steps, the strips exiting from the feeder (1) and a position in which it deposits the strips so that the opposite ends of each strip lie on a pair of fixing machines (30-33) which are not diagonally opposite, the steps being coordinated so as to form a rectangle of strips resting on the fixing machines (30-33).
摘要:
An apparatus for inserting, in the molding of picture-frames, metal staples adapted to retain laminar backing elements for pictures, photographs and the like, comprising a beam (15) which is arranged horizontally above the surface that supports the molding, two fixing tools (31,38) which are guided on the beam (15) transversely to two opposite sides of the molding, an actuation (27,28,37) for adjusting the distance between the fixing tools (31,38) along the beam as a function of the distance between the sides (5,6), and a further actuation (35,36,39) for vertically actuating the fixing tools into the position for applying metallic staples in the sides.