Abstract:
A glass ribbon conveyance apparatus includes a transfer member configured to extend an intermediate portion of a transfer ribbon spanning between a winding device and a transfer ribbon device in an extension direction from a second support member toward a first support member. In further examples, methods of conveying a glass ribbon include the step of extending an intermediate portion of a transfer ribbon spanning between a winding device and a transfer ribbon device toward a first support member. The method further includes the steps of attaching a leading end portion of a glass ribbon to a first major surface of the transfer ribbon, and retracting the intermediate portion of the transfer ribbon while the leading end portion of the glass ribbon travels toward a second support member.
Abstract:
An apparatus and method for precisely bending a glass sheet that includes an oven for heating the glass sheet to a temperature near the softening temperature of the glass sheet. A stage for supporting the glass sheet. A pair of reference surfaces on the stage for precisely locating the glass sheet on the stage. At least one bending mechanism on a pair of arms inside the oven for bending an edge portion of the glass sheet. Inward facing first stop surfaces on the arms that contact reference surfaces on the stage for precisely locating the bending mechanism on the arms relative to the stage and the glass sheet.
Abstract:
The invention relates to a method for crowning glass sheets (2), heated to the softening temperature thereof, having the following characteristics: the glass sheets (2) are arranged in a concave crowning frame (3) and pre-crowned under the force of gravity, the pre-crowned glass sheets (2) are transferred on a transfer form (4) with a concave forming surface, the transfer form (4) being displaced upwards across the concave crowning frame (3) with a larger perimeter and thus recovering the glass sheets (2), the transfer form (4) is brought to into the vertical projection of a final crowning form in th form of a frame (5) with a concave forming surface, the transfer form (4) is displaced downwards across the final crowning form (5) with larger perimeter, the glass sheets (2) are placed on the final crowning form (5)and the glass sheets (2) are crowned into the final form thereof. The glass sheets (2) in the final form thereof are transferred from the final crowning form (5) after the crowning operation is finished onto a transport and cooling device. The invention further relates to a device for carrying out said method.
Abstract:
A glass sheet articulated quench ring assembly (32) includes a frame (34) that supports a quench ring (36) including a central ring portion (40) that is fixed with respect to the frame and also including a movable ring portion (44) movable between open and closed positions on pivotal connection (48) about a pivotal axis (A). In the open position, it receives a hot glass sheet from an associated forming mold. In the closed position, it defines a shape having an intersection (46) with the mating shape of the hot mold surface (24s). An actuating mechanism (52) incudes a pair of actuators (54) for moving the quench ring end portions (44). Each actuator (54) includes an operatinb linkage (56) that include adjusters (60 and 62) for providing linkage length adjustment in associate with a crank arm assembly (64).
Abstract:
The invention concerns a method for bending a glass sheet comprising heating the glass sheet up to a softening temperature, conveying the glass sheet along a substantially horizontal path up to a bending station between two frames, shaping the glass sheet by pressing between the two frames, cooling the glass sheet in an appropriate station, said means comprising frame rollers receive the glass sheet after bending and said rollers being oriented parallel to the direction defined on the glass sheet by the direction in which it is fed into the bending station.
Abstract:
Apparatus (32) for handling hot glass sheets includes a roll conveyor (14) and a topside transfer platen (18) that overlap to provide assistance in the initial support of heated glass sheets (G) by the topside transfer platen (18) through the use of a vacuum and pressurized air respectively applied to first and second sets of holes (40, 42) in a downwardly facing surface (38) of the topside transfer platen (18).
Abstract:
The present invention provides an apparatus and method for substrate transport. In systems according to the invention, at least a first and second chamber are provided. The first chamber may be a load lock and the second chamber a processing chamber. A substrate transfer shuttle is provided and is moveable along a linear path defined by guide rollers between one position in the first chamber and another position in the second chamber. In this way, the substrate may be transferred, in both a forward and a reverse direction, between the first chamber and the second chamber. The substrate transfer shuttle is structured so that a substrate may be removed therefrom by moving a support in one of the chambers from a lowered position to an intermediate position, after which the substrate transfer shuttle may be removed from the chamber.
Abstract:
Apparatus for supporting a formed glass sheet (5) during a tempering operation comprises a support rail (20), a plurality of cantilevered support arms (26, 26) and means (22, 24) for affixing the support arms (26, 26) to the support rail (20). The support rail (20) generally conforms in outline and elevation to the peripheral marginal portion of the under-side major surface of the formed glass sheet. The support arms (26, 26) are cantilevered in relationship to the support rail (20) and attached thereto, and extend generally to a point medial the support rail (20).
Abstract:
Le dispositif de pressage (100) comprend un cadre (110) pour presser une feuille de verre (1) ramollie contre une forme de bombage (25) afin de la bomber. Le cadre de pressage (110) comprend une piste (120) pour contacter la feuille de verre (1) et un support de piste (130) qui est supporté par un châssis (180). Un système de chauffage (140) sert à chauffer la piste (120) qui est subdivisée en segments (121-i) successifs séparés à chaque fois par un jeu formant joint de dilatation entre eux. Chaque segment de piste (121-i) est monté sur le support de piste (130) avec une possibilité de déplacement entre eux dans la direction circonférentielle grâce à une liaison à glissement afin de compenser une variation dimensionnelle relative due à la dilatation lors du chauffage de la piste (120). Les risques de détérioration de la feuille de verre lors du pressage sont ainsi réduits.