摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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. Each grinding wheel except for the first grinding wheel along the advancement direction of the plates is provided with a detector for detecting the energy absorbed by the corresponding motor and an actuator for actuating the advancement device of the grinding wheel that is located immediately upstream as the energy absorbed by the grinding wheel located immediately downstream of it increases.
摘要:
The shoe is used as a glass plate pressing or backing-up member attached on a conveyor of a glass plate edge bevelling machine. The shoe comprises an elongate body. On one face thereof the elongate body is provided with blocks adapted for abutment engagement with large plate glass workpieces to be processed. A small supporting plate member movably connected to the elongate body is positionable at a first position, whereat the small plate member defines an extension of the elongate body, adapted for engagement with and for pressing or backing-up small size plate glass workpieces to be processed. The small plate member is further positionable at a second idle position, whereat it is accommodated within the elongate body in association with the blocks, without interfering with larger glass workpieces to be supported by the elongate body.