Abrégé

The invention relates to a method for bending a glass panel.The glass panel is heated in a heating furnace (1) for bending and tempering and fed in a flat condition from the furnace (1) onto a bending conveyor (4) while the bending conveyor (4) is in a straight configuration. The bending conveyor (4) and the glass panel are arched to a desired curvature while the glass panel travels along the bending conveyor (4). During the arching process, the bending conveyor (4), or at least its upstream end, is arched beyond a desired final curvature of the glass panel, i.e. the bending conveyor (4), or at least its upstream end, is arched with a bending radius (R2) which is smaller than a bending radius (R1) for the desired final curvature of the glass panel. As a result, the end section flatness of the glass panel is eliminated. Finally, the bent glass panel is tempered.

Classes IPC  ?

• C03B 23/033 - Finition des feuilles de verre par bombage par pressage entre deux moules de mise en forme en continu, p. ex. par laminage
• C03B 23/025 - Finition des feuilles de verre par bombage par gravité
• C03B 35/16 - Transport des feuilles de verre chaud au moyen de convoyeurs à rouleaux
• C03B 35/18 - Structure des rouleaux de convoyeurs
• C03B 27/044 - Trempe des articles de verre utilisant un gaz pour des feuilles de verre plat ou bombé en position horizontale
• C03B 25/08 - Recuisson des articles de verre en continu avec déplacement horizontal des produits en verre des feuilles de verre

Abrégé

The invention relates to an arching-ready support assembly (5) in a bending and/or tempering compartment for glass panels. The support assembly comprises a number of link bodies (9), which are connected to each other with articulated axles (9a). Between the link bodies (9) are control link mechanisms (1, 2, 3), which control arching of the support assembly (5) to a constant-radius curve. A first section of the support assembly (5) is adapted to be arched by a first servomotor (SM1) and a second section by a second servomotor (SM2).

Classes IPC  ?

• C03B 35/18 - Structure des rouleaux de convoyeurs
• C03B 23/033 - Finition des feuilles de verre par bombage par pressage entre deux moules de mise en forme en continu, p. ex. par laminage
• B65G 39/02 - Adaptation des rouleaux individuels ou supports à cet effet

Abrégé

The invention relates to a method and apparatus for bending a glass panel. A heated flat glass panel (G) is fed from a furnace (1) onto a bending conveyor (4) while the bending conveyor (4) is in a straight configuration. The bending conveyor (4) and the glass panel are arched to a desired curvature while the glass panel travels along the bending conveyor (4). The bent glass panel is passed from the bending conveyor (4) onto a tempering conveyor (5) present as its extension, which has been previously arched to a desired curve as early as or even prior to having the flat glass panel received by the straight bending conveyor (4).

Classes IPC  ?

• C03B 23/033 - Finition des feuilles de verre par bombage par pressage entre deux moules de mise en forme en continu, p. ex. par laminage
• C03B 23/025 - Finition des feuilles de verre par bombage par gravité
• C03B 35/16 - Transport des feuilles de verre chaud au moyen de convoyeurs à rouleaux
• C03B 35/18 - Structure des rouleaux de convoyeurs
• C03B 27/044 - Trempe des articles de verre utilisant un gaz pour des feuilles de verre plat ou bombé en position horizontale
• C03B 25/08 - Recuisson des articles de verre en continu avec déplacement horizontal des produits en verre des feuilles de verre

Abrégé

The invention relates to a method and apparatus for bending and tempering a glass panel. On a bending conveyor (4), the glass panel is bent in two bending directions. The first bending direction is established by arching the bending conveyor (4). The second bending direction is established by deflecting the bending conveyor's (4) rolls (4a, 4b). Various conveyor rolls (4a, 4b) of the bending conveyor (4) are deflected during the course of bending the glass panel simultaneously with unequal deflection radii, which become progressively smaller in the conveying direction. This facilitates simultaneous bending in two different directions.

Classes IPC  ?

• C03B 23/03 - Finition des feuilles de verre par bombage par pressage entre deux moules de mise en forme
• C03B 23/025 - Finition des feuilles de verre par bombage par gravité
• C03B 35/16 - Transport des feuilles de verre chaud au moyen de convoyeurs à rouleaux
• C03B 35/18 - Structure des rouleaux de convoyeurs
• C03B 27/044 - Trempe des articles de verre utilisant un gaz pour des feuilles de verre plat ou bombé en position horizontale
• C03B 25/08 - Recuisson des articles de verre en continu avec déplacement horizontal des produits en verre des feuilles de verre

Abrégé

The invention relates to a method of longitudinally deflecting conveyor rolls (4, 5) intended for bending glass panels. The method comprises deflecting the conveyor rolls (4, 5) during a glass-panel bending process by turning link member (6, 7) on which the ends of the conveyor rolls (4, 5) are mounted with bearings. In order to turn the link members (6, 7) of each conveyor roll (4, 5), at least one link member (6) is subjected to a force sufficient for its turning by a position-identifying electric drive (8). At least the other link member (7) is subjected to a force sufficient for its turning by a second electric drive (9), which is controlled on the basis of position data provided by the position-identifying electric drive (8).The present invention relates also to an assembly applying the method for bending glass panels.

Classes IPC  ?

• C03B 35/18 - Structure des rouleaux de convoyeurs
• C03B 23/033 - Finition des feuilles de verre par bombage par pressage entre deux moules de mise en forme en continu, p. ex. par laminage
• B65G 39/02 - Adaptation des rouleaux individuels ou supports à cet effet