A glass substrate transfer system and a robot arm thereof are provided. The robot arm includes: a substrate fork, a moving assembly and a vacuum chuck. The substrate fork is for taking a glass substrate. The moving assembly is connected with the substrate fork and for making the substrate fork to be moved in a working space. The vacuum chuck is disposed on the substrate fork and for sucking the glass substrate. The vacuum chuck is formed with a fluid path, and the fluid path is contained with a cooling fluid to dissipate heat of the vacuum chuck. The glass substrate transfer system and its robot arm provided by the present invention cool the vacuum chuck in time and thus can avoid affecting the product quality caused by the vacuum chuck being overheated, and the product yield is improved.

A glass sheet press forming station (32) and method for press forming hot glass sheets with transverse curvature is performed by initially limiting the central forming of a glass sheet (G) between its end portions upon pickup from a roll conveyor to an upper mold (38) and prior to press forming with an associated lower mold (66) to prevent central area optical distortion of the press formed glass sheet.

A glass molding apparatus includes at least one molding part including a molding cast configured to mold a glass, a transfer roller part including a plurality of transfer rollers below the molding part, the transfer rollers being arranged along a first direction, being configured to rotate in a first rotation direction to transfer the molding part along the first direction, and being configured to apply heat to the molding part, and a plurality of pressure parts configured to apply pressure to the molding part.

A manufacturing method for a glass film includes at least a cutting step of cutting a strip-shaped glass film while conveying the glass film in a predetermined direction by a conveying device. In the cutting step, the glass film is cut in predetermined cutting zones by irradiating the glass film with laser beams. A support conveyance surface of the conveying device for the glass film is separated at the cutting zones for the glass film. Further, a first surface plate capable of supporting the glass film in a contact manner is disposed at a position that is located in a width direction of the glass film with respect to the cutting zones and corresponds to a center of a glass film obtained by the cutting in the width direction.