Abstract: A machine for cutting leathers has a bearing structure and an operating element exhibiting a rotation axis and three distinct work planes each arranged about the rotation axis and provided with an aspirating plate that is activatable/deactivatable such as to retain or release the leathers. The operating element successively positions each work plane at three successive and distinct positions with respect to the bearing structure: a first position in which the leathers can be positioned and stretched above the work plane and held stretched thereon, a second position in which the work plane with the leathers stretched and retained thereon is located below a cutter, and a third position wherein the leathers can be unloaded from the work plane by force of gravity following deactivation of the respective aspirating plate.

Abstract: The machine for cutting leathers comprises: a bearing structure (1), an operating element (2), shaped in such a way as to exhibit a rotation axis (Z) and at least three distinct work planes (21, 22, 23), each of which is arranged about the rotation axis (Z) and is provided with an aspirating plate that is activatable/deactivatable such as to retain or release the leathers, and cutting means (3) associated to the bearing structure (1), at a relative side thereof, and movable with respect thereto.

Abstract: A machine for cutting leathers (1), comprising: a structure (2) which circumscribes an operating area (3) where the leathers are to be laid, maintained stretched and still such as to allow cutting operations; at least an aspirating plane (4, 40) arranged at the operating area (3) and connected to a depression source (9) such as to maintain the leather stretched and still following activation of the depression source (9); a cutting unit (5), borne by the structure (2), arranged above the operating area (3) and movable with respect thereto, such as to realise the cut in the leathers in the operating area (3); the machine (1) comprising at least two closed-loop belts (6, 66) made of a permeable material and flanked to one another, each comprising an upper branch (60, 606) and a lower branch (61, 616), each of the belts (6, 66) being arranged such that the upper branch (60, 606) thereof remains above and in proximity of the aspirating plane (4, 40), in order to restingly receive the leathers to be cut and in orde

Abstract: A work table for an automatic machine for cutting leathers and the like, includes a plurality of holes opening outwards and communicating with a vacuum source, to make portions of leathers to adhere to the active surface (3) of the work table (1). The work table (1) includes a central body (1a), supported by a fixed structure (2). At least one lateral portion (1h, 1j), connected to the fixed structure (2), is moved by first motion means (10h, 10j) between at least one work configuration (K1), in which its active surface (3h, 3j) is aligned with the active surface (3a) of the central body (1a), to define the active surface (3) of the work table (1), and a rest configuration (K2) of reduced dimension, in which the active surfaces (3a, 3h, 3j) of the central body (1a) and the lateral portion (1h, 1j) are arranged at an angle with respect to each other.

Abstract: A method for the optical projection of profiles on the work surface (1) of a machine (100) for automatic cutting of flat articles (2) includes the following operation steps: positioning of a flat article (2) on the work surface; definition of a profile (3, 3A) on the flat article (2) by the projection, on the latter, of a first light beam (4); orientation by rotation, with respect to an axis orthogonal to the surface (1), and positioning of the profile (3, 3A) on the flat article (2), and selection of the profile; definition of the profile (3, 3A) on the flat article by the permanent optical projection thereon of a second light beam (5), and contemporary deactivation of the first light beam (4). The invention further proposes a machine for automatic cutting of flat articles with two projectors as required by the method.

Abstract: A work table for an automatic machine for cutting leathers and the like, includes a plurality of holes opening outwards and communicating with a vacuum source, to make portions of leathers to adhere to the active surface (3) of the work table (1). The work table (1) includes a central body (1a), supported by a fixed structure (2). At least one lateral portion (1h, 1j), connected to the fixed structure (2), is moved by first motion means (10h, 10j) between at least one work configuration (K1), in which its active surface (3h, 3j) is aligned with the active surface (3a) of the central body (1a), to define the active surface (3) of the work table (1), and a rest configuration (K2) of reduced dimension, in which the active surfaces (3a, 3h, 3j) of the central body (1a) and the lateral portion (1h, 1j) are arranged at an angle with respect to each other.

Abstract: In a device for projecting flat articles profiles in a machine for cutting these flat articles, a stationary support extends over a working plane of this machine and a pair of adjustable first and second mirrors are connected to the stationary support over the working plane. A projector is mounted on a support rotated alternatively between a first position, in which an image generated by the projector is reflected by the first mirror and projected in a first area of the working plane, and a second position, in which an image generated by the projector is reflected by the second adjustable mirror and projected in a second area of the working plane. The device includes a pneumatic cylinder for driving the support into rotation.