A method and apparatus for scoring thin glass for the purpose of score and break separation as well as an accordingly prepared scored thin glass are provided. The scoring tool is pressed onto the thin glass and drawn along the scoring line with an adjusted scoring contact pressure force as a vertical scoring force component. This permits to production of prescored ultrathin glass of Knoop hardness from 350 to 650 with a score depth from 1/20 to of the material thickness.

A cut-out glass plate positioning apparatus includes: a cut line forming device 4 provided in a cut line forming position 4a; a bend-breaking and separating device 6 for cutting out unworked plate glasses 5 from an unworked plate glass 2 along the cut lines 3; a pair of position and angle correcting devices 8 for effecting correction of the position and angle with respect to the unworked plate glass 5; a pair of sucking and transporting devices 9 for suckingly lifting and transporting the unworked plate glass 5 to each position and angle correcting device 8; and two CCD cameras 10 respectively installed above the position and angle correcting devices 8.

A cut-out glass plate positioning apparatus includes: a cut line forming device 4 provided in a cut line forming position 4a; a bend-breaking and separating device 6 for cutting out unworked plate glasses 5 from an unworked plate glass 2 along the cut lines 3; a pair of position and angle correcting devices 8 for effecting correction of the position and angle with respect to the unworked plate glass 5; a pair of sucking and transporting devices 9 for suckingly lifting and transporting the unworked plate glass 5 to each position and angle correcting device 8; and two CCD cameras 10 respectively installed above the position and angle correcting devices 8.

A cutter head includes: a support platform; a double curved surface member mounted on the support platform and having a first curved surface and a second curved surface; a cutter wheel support member and a roller wheel support member moveably mounted on the support platform, respectively; a cutter wheel and a roller wheel mounted on the cutter wheel support member and the roller wheel support member, respectively; a first transmission mechanism mounted on the support platform, configured to be mated with the first curved surface, and connected to the cutter wheel support member, so as to transmit a movement of the double curved surface member to the cutter wheel; and a second transmission mechanism mounted on the support platform, configured to be mated with the second curved surface, and connected to the roller wheel support member, so as to transmit a movement of the double curved surface member to the roller wheel. The cutter head has a compact structure, and it improves the levelness of the cutter wheel and the roller wheel, and increases the mechanical precision.

A scribing apparatus 1 includes a horizontal table 3 on which a glass plate 2 is placed and fixed under vacuum suction; a feed screw 5 and a Y-axis control motor 6 for moving the table 3 along a pair of guide rails 4 under scribe numerical control; a guide rail device body 7 installed above the table 3 along an X-axis direction; a carriage 8 mounted on the guide rail device body 7 so as to move in the X-axis direction while being guided; a feed screw and an X-axis control motor 9 for moving the carriage 8 in the X-axis direction under numerical control; and a scribe head 10 installed on the carriage 8.

A scribing apparatus 1 includes a horizontal table 3 on which a glass plate 2 is placed and fixed under vacuum suction; a feed screw 5 and a Y-axis control motor 6 for moving the table 3 along a pair of guide rails 4 under scribe numerical control; a guide rail device body 7 installed above the table 3 along an X-axis direction; a carriage 8 mounted on the guide rail device body 7 so as to move in the X-axis direction while being guided; a feed screw and an X-axis control motor 9 for moving the carriage 8 in the X-axis direction under numerical control; and a scribe head 10 installed on the carriage 8.

In a glass plate working apparatus 1, a carrying-in position 3, a scribing position 4, a removing position 5, a grinding position 6, and a discharging position 7 are arranged at equal intervals linearly along a transporting direction, and a transporting device 8 for transporting glass plates 2 is additionally provided.

In a glass plate working apparatus 1, a carrying-in position 3, a scribing position 4, a removing position 5, a grinding position 6, and a discharging position 7 are arranged at equal intervals linearly along a transporting direction, and a transporting device 8 for transporting glass plates 2 is additionally provided.

A glass ribbon scoring apparatus and method includes a score head, a pressure regulator configured to exert a biasing force against the score head, a first pivot mechanism positioned between the score head and the pressure regulator, a second pivot mechanism mounted on a support member, and a lever arm positioned between the first pivot mechanism and the second pivot mechanism. The first and second pivot mechanisms rotate and the lever arm moves with movement of the score head.

A bend-breaking system with a cutter wheel is lifted, and the wheel and first and second pressers are rotated in an axial direction by a rotation mechanism so that a first presser is positioned in the edge portion of the glass plate. The second presser is lowered by a lifter and the second presser and first and second supports clamp a main body portion and an edge portion of the glass plate. The second presser and the first and second supports clamp the main body portion and the edge portion, and the second support is lowered by a fourth lifter, and the first presser is lowered by the second lifter to press the edge portion of the glass plate extending outside the outline cut line downward while maintaining the clamping of the main body portion by the second presser and the first support to bend-break the edge portion.