摘要:
A system for detecting and automatically adjusting the position of a plurality of burners with respect to the edges of a continuous glass sheet is provided. The glass sheet is transported by rolls along the length of a thermal treatment lehr. Sensor elements for sensing the edge of the glass sheet are attached conjointly with the burners in order to adjust the position of the burners. A programmable controller is coupled to the sensor elements in order to adjust the position of the burners in accordance with the position of the sensor elements at the edge of the glass sheet.
摘要:
A method for automatically detecting and adjusting the position of a plurality of burners with respect to the edge of a continuous glass sheet is provided. The glass sheet is transported by rolls along the length of a thermal treatment lehr. Detecting and adjusting sensors for sensing the edge of the glass sheet are attached conjointly with the burners in order to automatically adjust the position of the burners with regards to the edge of the glass sheet, so, for each variation in the width of the glass sheet, the detecting and adjusting sensors are advanced or retracted over the edge of the glass sheet, in order to adjust the burners in accordance with a new position of the edge of said glass sheet.
摘要:
A glass sheet handling apparatus for horizontally receiving a glass sheet from a roller conveyor and placing the sheet vertically on a pyramidal conveying shelf comprising a discharging platform at the end of the conveyor to receive a glass sheet; an angular member having a first end pivotally joined to the platform and a second end pivotally anchored to a support structure; a fluid operated cylinder and piston assembly having its cylinder pivotally anchored to the support structure and its piston pivotally joined the angular member; and a controller to control the operation of the fluid operated cylinder and piston assembly, so that when the piston is actuated, it lifts the angular arm and the discharging platform with the glass sheet thereon, from a horizontal position through a path defining an arc to a vertical position, thereby vertically positioning the glass sheet on the pyramidal conveying shelf. Alternatively, a motor-driven rack and pinion or other mechanical devices can be used to lift the angular member.
摘要:
A system and method is disclosed to automatically lift the curtains of the exit hood of a machine for the production of float flat glass by the floating process. A light beam emitter is provided for a light beam which strikes the surface of the glass ribbon, being formed, and is reflected by that surface. A light beam receptor receives the light beam reflected by the surface of the glass ribbon and provides a signal representative of the absence or deviation of the reflected light beam should there be a break in the glass ribbon. A controller receives the signal representative of the absence or deviation of the reflected light beam, and provides operating signals to the actuators of the i) curtain lifting mechanism, ii) reheating system, iii) glass edge follower mechanism and iv) alarm of the glass ribbon forming machine. These signals automatically a) lift the curtains to avoid clogging of the broken glass ribbon, b) operate the reheating system of the exit hood, c) retract the glass edge follower mechanism, and d) trigger the to allow for a rapid restoration of the glass ribbon forming process.