Abstract: An assembly for conveying glass sheets on machines for working sheets, comprising an assembly for feeding the sheets to be worked, which engages the longitudinal edges of the sheets and is arranged upstream of a frame for supporting at least one working head, and an assembly for removing the sheets, which engages the edges of the sheets and is arranged downstream of the frame for supporting a working head.

Abstract: A method for loading and cutting glass sheets on a cutting table, that includes the steps of: providing, with a scoring head, scoring lines on a first sheet of glass positioned on the cutting table; extracting, during the scoring step, sucker-fitted pick-up arms from below the first sheet being worked; tilting the pick-up arms so as to place the suckers on a second sheet to be picked up, which is arranged substantially vertically adjacent the scoring table; picking up the second sheet, starting to tilt it toward the cutting table during the scoring of the first sheet; moving the scored first sheet away from the cutting table; positioning the scoring head beyond a sheet supporting region, on an opposite side with respect to a pick-up region; and positioning the second sheet on the cutting table.

Abstract: A pneumatic device for continuously varying the pressure of compressed air for feeding pneumatic actuators, comprising a pressure regulation device, which is adapted to receive in input an unregulated pressure line and to provide in output a regulated pressure; an error amplifier, which is adapted to drive an actuation device, which in turn is adapted to actuate the pressure regulation device; and a pressure transducer, which is adapted to detect a pressure value downstream of the pressure regulation device and to feed it back to the error amplifier, for closed-loop control of the pressure regulation device.

Abstract: A machine for working on glass sheets, comprising, on a frame for supporting a sheet to be worked, an upper working head and a lower working head. A sheet locking assembly is provided that is constituted by an upper pressing surface and a lower pressing surface, the lower pressing surface being disengaged from the lower working head.

Abstract: An assembly for conveying glass sheets on machines for working sheets, comprising an assembly for feeding the sheets to be worked, which engages the longitudinal edges of the sheets and is arranged upstream of a frame for supporting at least one working head, and an assembly for removing the sheets, which engages the edges of the sheets and is arranged downstream of the frame for supporting a working head.

Abstract: A pneumatic device for continuously varying the pressure of compressed air for feeding pneumatic actuators, comprising a pressure regulation device, which is adapted to receive in input an unregulated pressure line and to provide in output a regulated pressure; an error amplifier, which is adapted to drive an actuation device, which in turn is adapted to actuate the pressure regulation device; and a pressure transducer, which is adapted to detect a pressure value downstream of the pressure regulation device and to feed it back to the error amplifier, for closed-loop control of the pressure regulation device.

Abstract: A method for loading and cutting glass sheets on cutting tables, comprising providing, by means of a scoring head, scoring lines on a sheet of glass; extracting, during scoring, the sucker-fitted pick-up arms from below the sheet being worked; tilting the pick-up arms so as to place the suckers on the sheet to be picked up, which is arranged substantially vertically; picking up the sheet, starting to tilt it toward the cutting table during the scoring of the sheet; moving the scored sheet away from the cutting table; positioning the scoring head beyond the sheet supporting region, on the opposite side with respect to the pick-up region; and positioning the sheet on the cutting table.

Abstract: A cutting table particularly for glass panes and the like, with cutting optimizing of the useful cutting dimensions, which comprises a frame forming cutting bed on which a cutting bridge is movable that supports a cutting head and can slide on guides fixed to the frame by means of sliding trucks provided with two mutually spaced upper wheels engageable with the upper part of the guides, a central upper wheel, which is arranged between the upper wheels, and at least two lower abutment elements, engageable with the lower part of the guides that are positioned on opposite sides with respect to the central upper wheel.

Abstract: An apparatus for loading and unloading plate-like elements for machines for processing materials in plate form, comprising, on one side of a machine for processing materials in plate form, a station for loading the plate to be processed and, on the other side of the machine, a station for unloading the processed plate; at least one pick-up arm is further provided on the supporting beam of the working head of the machine, can perform a translational motion with respect to the beam, and is adapted to cause simultaneously the translational motion of a plate to be processed from the loading station to the working surface of the machine and the translational motion of a processed sheet from the working surface to an unloading station.

Abstract: A cutting table particularly for laminated glass panes, comprising a surface for supporting the pane being worked and pushers for positioning the pane being worked at the cutting heads, at least one of the pushers being provided with angular positioning elements and determining at least two separate points for engagement with the pane being worked, an abutment element being further provided which can be positioned so as to define a third point for engagement with the pane being worked.

Abstract: A device for measuring the power of a motor, having a measurer for measuring the current sent to the motor and a measurer for measuring the voltage, related to the current, that is sent to the motor, a rephaser for rephasing the waveform of the voltage measured by the voltage measurer and a multiplier suitable to multiply the current measured by the current measurer with the voltage rephased by the rephaser, the output signal of the multiplier being processed in order to obtain active power.

Abstract: An automatic machine for working materials in sheet form, particularly glass sheets, which comprises a supporting framework that has a worktable for supporting the sheet being worked with suction cup elements and a tool magazine. A frame for supporting a working head is associated with the framework, the head being able to move above the worktable. A pick-up tool that can be moved by the working head is provided, to pick up suction cup elements from a magazine and position them on the worktable and/or vice versa.

Abstract: A suction cup element for retaining plate-like elements, particularly for machines for working glass plates and the like, which comprises a suction cup body provided with a lower suction cup and an upper suction cup that delimit regions connected to a lower intake duct and to an upper intake duct, respectively, for connection to a vacuum source. A flow control element is further provided for controlling the lower intake duct so as to free the connection to the region delimited by the lower suction cup when the suction cup element is rested on the working surface.

Abstract: An edge grinding unit for machines for working the edges of plates in general and of glass sheets in particular comprising at least at one rim of a plate being worked, a grinding wheel which is accommodated in a carousel element provided with a rotatable cage formed by a plurality of circumferentially distributed rollers. The edge grinding unit further comprising an arm for supporting the grinding wheel which provides, for the grinding wheel, a first oscillation axis and a second oscillation axis which are spaced one another and are substantially perpendicular to the advancement plane of the plate.

Abstract: A device for measuring the power of a motor, comprising a measurer for measuring the current sent to the motor and a measurer for measuring the voltage, related to the current, that is sent to the motor, a rephaser for rephasing the waveform of the voltage measured by the voltage measurer and a multiplier suitable to multiply the current measured by the current measurer means with the voltage rephased by the rephaser, the output signal of the multiplier being processed in order to obtain active power.

Abstract: A bilateral automatic machine for machining the edges of plates of glass, stone-like and of other plate shaped materials and the like, comprising a supporting frame which has a conveyor for the plates to be machined. There are also provided an abutment shoulder and a movable shoulder for supporting abrasive grinding wheels which act on the opposite edges of the plates. The machine comprises, for each shoulder, downstream of the last grinding wheel in the direction of advancement of the plates, a sensor for detecting the dimensions of the plates being machined which drives an advancement device for the advancement of the last grinding wheel.

Abstract: A bilateral edge-type machine for machining the edges of glass, or stone-like plate materials and the like comprising a supporting frame for a plurality of machining heads arranged on both sides of the plate being machined. Each head comprises a structure associated with a supporting body which is connected to the frame. The structure has, on one side, a grinding wheel supporting spindle which is directed upward and, on the other side, an actuation motor which is directed upward. The motor is connected to the spindle by way of a belt drive.

Abstract: An edge grinding unit for machines for working the edges of plates in general and of glass sheets in particular comprising at least at one rim of a plate being worked, a grinding wheel which is accommodated in a carousel element provided with a rotatable cage formed by a plurality of circumferentially distributed rollers. The edge grinding unit further comprising an arm for supporting the grinding wheel which provides, for the grinding wheel, a first oscillation axis and a second oscillation axis which are spaced one another and are substantially perpendicular to the advancement plane of the plate.

Abstract: An edging unit applicable to machines for working the edges of plates, particularly of glass plates, comprising, at least one edge of a plate being worked, a first movable element and a second movable element which respectively support a first grinding wheel and a second grinding wheel. The movable elements are connected to actuators in order to respectively move the first grinding wheel so that it acts on the front edge of the plate being worked and the second grinding wheel so that it acts on the rear edge.

Abstract: The unit for polishing the bevels on the edges of glass plates, particularly on a numeric-control machine, comprises a cup grinding wheel for polishing the edge of a glass plate and the like. The particularity of the unit is constituted by the fact that it comprises, inside the cup grinding wheel, at least one opening for introducing a mix of cerium oxide and water and, on the outside of the cup grinding wheel, an interspace which surrounds the cup grinding wheel and is connected to a suction unit.