A molten glass cutting apparatus comprises a pair of shear blades and a control unit that controls a pair of the shear blades to relatively move toward each other. The control unit controls a pair of the shear blades to relatively move so that tip parts of a pair of the shear blades overlap, and shearing force by cutting edges of a pair of the shear blade cuts molten glass extruded from an orifice formed at a bottom part of a spout. When a central part of molten glass is offset with respect to a central axis of the orifice, the control unit offsets a position of cutting by a pair of the cutting edges to a side of the central part with respect to the central axis.

A molten glass cutting apparatus comprises a pair of shear blades and a control unit that controls a pair of the shear blades to relatively move toward each other. The control unit controls a pair of the shear blades to relatively move so that tip parts of a pair of the shear blades overlap, and shearing force by cutting edges of a pair of the shear blade cuts molten glass extruded from an orifice formed at a bottom part of a spout. When a central part of molten glass is offset with respect to a central axis of the orifice, the control unit offsets a position of cutting by a pair of the cutting edges to a side of the central part with respect to the central axis.

A molten glass cutting apparatus comprises a first support portion, a second support portion, a restriction portion and an applying portion. The first support portion supports a shear blade so as to be rotatable around a first axis extending in the width direction of the shear blade. The second support portion supports the shear blade so as to be rotatable around a second axis extending in the length direction of the shear blade. The restriction portion restricts rotation of the shear blade provided with the first support portion around the first axis so that inclined portions of a projecting portions of each of a pair of the shear blades face each other when a pair of the shear blades are separated. The applying portion applies an elastic force around the first axis for pressing a pair of the shear blades against each other to the shear blade provided with the first support portion.

A molten glass cutting apparatus comprises a first support portion, a second support portion, a restriction portion and an applying portion. The first support portion supports a shear blade so as to be rotatable around a first axis extending in the width direction of the shear blade. The second support portion supports the shear blade so as to be rotatable around a second axis extending in the length direction of the shear blade. The restriction portion restricts rotation of the shear blade provided with the first support portion around the first axis so that inclined portions of a projecting portions of each of a pair of the shear blades face each other when a pair of the shear blades are separated. The applying portion applies an elastic force around the first axis for pressing a pair of the shear blades against each other to the shear blade provided with the first support portion.

A molten glass cutting apparatus comprises a first support portion, a second support portion, a restriction portion and an applying portion. The first support portion supports a shear blade so as to be rotatable around a first axis extending in the width direction of the shear blade. The second support portion supports the shear blade so as to be rotatable around a second axis extending in the length direction of the shear blade. The restriction portion restricts rotation of the shear blade provided with the first support portion around the first axis so that inclined portions of a projecting portions of each of a pair of the shear blades face each other when a pair of the shear blades are separated. The applying portion applies an elastic force around the first axis for pressing a pair of the shear blades against each other to the shear blade provided with the first support portion.

A molten glass cutting apparatus comprises a first support portion, a second support portion, a restriction portion and an applying portion. The first support portion supports a shear blade so as to be rotatable around a first axis extending in the width direction of the shear blade. The second support portion supports the shear blade so as to be rotatable around a second axis extending in the length direction of the shear blade. The restriction portion restricts rotation of the shear blade provided with the first support portion around the first axis so that inclined portions of a projecting portions of each of a pair of the shear blades face each other when a pair of the shear blades are separated. The applying portion applies an elastic force around the first axis for pressing a pair of the shear blades against each other to the shear blade provided with the first support portion.

A column of molten glass is cut transversely to make a plurality of glass gobs by means of a cutting device having an elongated piece orthogonal to a conveying direction of the column and carried by a moveable frame operated by a motor controlled by a unit to rotate the piece at either constant or variable speed in one or both directions of rotation about a fixed hinged axis orthogonal to the conveying direction of the glass column.

A column of molten glass is cut transversely to make a plurality of glass gobs by means of a cutting device having an elongated piece orthogonal to a conveying direction of the column and carried by a moveable frame operated by a motor controlled by a unit to rotate the piece at either constant or variable speed in one or both directions of rotation about a fixed hinged axis orthogonal to the conveying direction of the glass column.

A molten glass cutting apparatus comprises a pair of shear blades and a control unit that controls a pair of the shear blades to relatively move toward each other. The control unit controls a pair of the shear blades to relatively move so that tip parts of a pair of the shear blades overlap, and shearing force by cutting edges of a pair of the shear blade cuts molten glass extruded from an orifice formed at a bottom part of a spout. When a central part of molten glass is offset with respect to a central axis of the orifice, the control unit offsets a position of cutting by a pair of the cutting edges to a side of the central part with respect to the central axis.

A molten glass cutting apparatus comprises a pair of shear blades and a control unit that controls a pair of the shear blades to relatively move toward each other. The control unit controls a pair of the shear blades to relatively move so that tip parts of a pair of the shear blades overlap, and shearing force by cutting edges of a pair of the shear blade cuts molten glass extruded from an orifice formed at a bottom part of a spout. When a central part of molten glass is offset with respect to a central axis of the orifice, the control unit offsets a position of cutting by a pair of the cutting edges to a side of the central part with respect to the central axis.