Abstract: A cutting device for machines for cutting hides and the like, including an oscillating piston provided at its end with a cutting blade, the oscillating piston being actuated pneumatically by way of an inlet and an outlet, an oscillation chamber being defined by the lower and upper stroke limits of the oscillating piston, the device including a supply duct that leads to the oscillation chamber, the supply duct being regulated by a solenoid valve in order to raise the oscillating piston and consequently raise the cutting blade.

Abstract: A structure for moving tools in numeric control machines for the working of rigid and semirigid planar materials, comprising a supporting framework adapted to be arranged in a position that lies above a working surface of a numeric control machine, the supporting framework supporting at least one arm for supporting a tool head, the arm being movable along a bridge, the tool head supporting at least one tool, there being also elements for compensating vibrations and/or oscillations that are a consequence of the accelerations caused by the movement of the at least one tool head, the compensation elements being movable along the bridge, on a plane that is parallel to the movement plane of the at least one tool head.

Abstract: A method for cutting natural hides, on cutting machines comprising a conveyor belt on which a hide to be cut is arranged, and at least one longitudinal cantilever arm for supporting a cutting head, comprising the steps of: on a conveyor belt of the machine that is divided into a placement area, a cutting area and a collection area, wherein the collection area is an area of the conveyor belt toward which the at least one supporting arm protrudes with the corresponding cutting head, placing a hide on the placement area; defining a cutting layout on the hide; advancing the hide at the cutting area; by means of a collection operator, located at the collection area and directed toward the supporting arm with corresponding cutting head, rearranging the hide when it is at the cutting area; advancing the hide toward the collection area and collecting the cut pieces.

Abstract: A cutting device for machines for cutting hides and the like, comprising an oscillating piston provided at its end with a cutting blade, the oscillating piston being actuated pneumatically by way of an inlet and an outlet, an oscillation chamber being defined by the lower and upper stroke limits of the oscillating piston, the device comprising a supply duct that leads to the oscillation chamber, the supply duct being regulated by a solenoid valve in order to raise the oscillating piston and consequently raise the cutting blade.

Abstract: A strip support and alignment device, particularly for strips to be cut in a cutting machine, the device comprising: a sheet that is stretched between a station for feeding at least one strip and a station for processing said strip, which defines a support and alignment surface for the strip, first elements for fixing the sheet to the feeding station, second elements for fixing the sheet to the processing station, elements for winding and unwinding the sheet, which are adapted to wind or unwind the sheet in order to vary its length depending on the distance between the feeding station and the processing station.

Abstract: An unrolling device, particularly for materials in rolls, with material alignment control, comprising elements for unrolling a roll of material to be unrolled, the device further comprising elements for detecting at least one lateral edge of the material unrolled from the roll which are adapted to detect quantitatively the movement of the edge transversely to the unrolling direction of the material.

Abstract: A method for detecting the position of a conveyor, comprising the steps of: providing on the conveyor belt an irregular marking, constituted by marks and the like that are detectable optically; by means of a vision device, detecting portions of the marking at preset time intervals; comparing a detection performed by the vision device with a previously performed detection, in order to determine the extent and direction of the movement.

Abstract: A device for retaining multilayer synthetic materials on cutting tables, comprising a supporting element adapted to be placed laterally to a multilayer to be processed, on a cutting table, and adapted to support a plate-like element whose dimensions are such as to protrude with respect to the supporting element and surmount the edge of the multilayer, the plate-like element passing from an inactive configuration to an active configuration in which the plate-like element is pressed with its edge against the edge of the multilayer.

Abstract: An unrolling device, particularly for materials in rolls, with material alignment control, comprising elements for unrolling a roll of material to be unrolled, the device further comprising elements for detecting at least one lateral edge of the material unrolled from the roll which are adapted to detect quantitatively the movement of the edge transversely to the unrolling direction of the material.

Abstract: A method for detecting the position of a conveyor, comprising the steps of: providing on the conveyor belt an irregular marking, constituted by marks and the like that are detectable optically; by means of a vision device, detecting portions of the marking at preset time intervals; comparing a detection performed by the vision device with a previously performed detection, in order to determine the extent and direction of the movement.

Abstract: A cutting machine, particularly for hides and the like, comprising a supporting structure that is adapted to support a worktable, the worktable being surmounted at least partially by an arm which supports at least one cutting head that is movable along the arm, the arm being moved along one side of the worktable, the worktable being free from obstacles along the sides that are adjacent to the side along which the arm is moved, the worktable comprising a supporting element that is adapted to allow the positioning of portions of the hide for cutting and the repositioning on the cutting area of a subsequent portion of the hide for a subsequent cutting operation, by means of moving the supporting element.

Abstract: A cutting apparatus, particularly for hides, comprising a worktable, which defines a cutting area, surmounted by at least one movable transverse bridge, at least one cutting head being provided in order to perform cutting operations, at least one cutting head being supported in a cantilever fashion at a first end of an arm that is adapted to be moved, at a second end thereof, along the movable bridge, transversely with respect to guides for the sliding of the movable bridge, which are arranged laterally with respect to the worktable.

Abstract: A cutting machine, particularly for leather and similar materials, comprising a pair of shoulders which are connected by a system of guides arranged so as to lie above a conveyor belt, at least one cutting head being movable along the guide system, the movement of the cutting head in the same advancement direction as the conveyor belt and at right angles to the guide system being distributed on two or more elements, at least one of which is cantilevered.

Abstract: A cutting machine, particularly for leather and similar materials, comprising a cutting area provided with one or more cutting heads and with an area for unloading the cut parts, the areas being arranged along a conveyor belt, material detection means being provided in order to detect the position of the material before cutting it, the machine further comprising a detection area, arranged upstream of the cutting area, the material detection means being arranged in the detection area in order to detect the position of references provided on the material to be cut.

Abstract: A device (10) for generating oscillating motion, comprising a pivot (2) that is adapted to be mated rotatably and eccentrically to a shaft (1) which in turn rotates, the pivot (2) ending at the output with eccentric means (3) that are adapted to allow mating with an element that is retained so as to slide in a single direction, the rotation of the pivot (2) within the rotating shaft (1) producing two different eccentricities of the eccentric means (3) in the two directions of rotation.

Abstract: A machine for cutting hides and the like and sheet-like material in general, with simplified-access worktable, comprising a footing for supporting a worktable, and cutting elements adapted to be moved on said worktable along the contours of the shapes to be cut, by way of numeric control, wherein the imaginary extensions of three sides of said worktable do not encounter obstacles due to said cutting elements and supports thereof, the fourth side of the worktable being surmounted by a cantilever arm that supports said cutting elements.

Abstract: A control unit for an electric drive motor of industrial processing machinery includes a control arrangement which drives a pair of magnets generating a magnetic flux and a Hall effect sensor disposed between the magnets so as to be swept by the magnetic flux rotatively with respect to each other; the Hall effect sensor outputs an electric signal which varies consistently with the position setting of the control arrangement and drives the electric motor accordingly; the movement of the control arrangement is resisted by springs having different degrees of stiffness from one another; proper interaction can thus be established between the operator and the machine.

Abstract: An operation apparatus for a sewing machine has an electric motor for driving the sewing machine and electronic components for operating and controlling the electric motor and sewing machine; the electric motor and electronic components are accommodated within a common, heat-conductive box-type body effective to dissipate the heat generated inside the body by the electric motor and the electronic components to the outside.

Abstract: A control unit for an electric drive motor of industrial processing machinery includes a control arrangement which drives a pair of magnets generating a magnetic flux and a Hall effect sensor disposed between the magnets so as to be swept by the magnetic flux rotatively with respect to each other; the Hall effect sensor outputs an electric signal which varies consistently with the position setting of the control arrangement and drives the electric motor accordingly; the movement of the control arrangement is resisted by springs having different degrees of stiffness from one another; proper interaction can thus be established between the operator and the machine.

Abstract: This machine comprises a folding foot co-operating with a fixed abutment and a movable oscillating finger for folding the workpiece border against the folding foot, with a presser for retaining and advancing the workpiece, with a glue feeding device and an adjustable speed actuation motor; the machine also comprises photocells indicating the presence and the shape of the workpiece, a minicomputer for storing and controlling the operative and setting parameters of the machine kinematisms, as can be memorized, in maximum rotation rate at straight, outwardly and inwardly curved portions of the workpiece, advancement pitch at the straight and curved portions, glue dosage, delivery times and temperature, selection of the photocells causing pitch variations and actuation of the cutting blade, and machine operation mode, i.e. manual, automatic and continuous rotation; the machine furthermore has drivers for adjustable control of the operative parameters.