Glass handling assembly
View Patent ↗Assemblies are provided for stabilizing sheets of glass during handling. The assemblies may include rollers of different varieties for stabilization. Crowder rollers may be provided to contact edges of the sheets. One or more of the crowder rollers may have an outer surface having a noncylindrical portion with an increasing diameter in an upward direction relative to the conveyance plane of the sheets. Conveyor rollers may be arranged so as to define a conveyor for conveying the sheets. One or more of the conveyor rollers may be a support roller in substantial registration with a strip applicator for contacting a bottom side of the sheets below the strip applicator during application of a strip.
1. An assembly for stabilizing a sheet of glass during application of a strip by a strip applicator, the assembly comprising:
a series of conveyor rollers arranged so as to define a conveyor for conveying the sheet into and within a strip application zone, each conveyor roller having a central conveyance axis, the respective central conveyance axes of the conveyor rollers extending substantially parallel to each other along a conveyance plane; and
at least one pair of crowder rollers, each crowder roller having a central crowder axis extending substantially perpendicular to the conveyance plane, each crowder roller being respectively positionable so as to contact a given edge of the sheet to register the sheet in the strip application zone relative to the strip applicator, at least one of the crowder rollers located within the strip application zone in registration with the strip applicator, at least one of the crowder rollers having an outer surface having a noncylindrical portion, the noncylindrical portion having an increasing diameter in an upward direction relative to the conveyance plane, the noncylindrical portion providing a counteracting downward force to the respective given edge of the sheet if operation of the strip applicator causes an upward force at the respective given edge of the sheet, thereby maintaining the sheet in a substantially planar condition.
2. The assembly of claim 1 , wherein the at least one crowder roller is located adjacent a first edge of the sheet, the strip applicator applying a strip parallel to the first edge.
3. The assembly of claim 1 , wherein the at least one crowder roller is located adjacent a first edge of the sheet, the strip applicator applying a strip perpendicular to the first edge.
4. The assembly of claim 1 , wherein both of the crowder rollers in the at least one pair of crowder rollers include a noncylindrical portion on their respective outer surfaces.
5. The assembly of claim 1 , wherein the crowder rollers in the at least one pair of crowder rollers are respectively located adjacent opposite edges of the sheet.
6. The assembly of claim 1 , wherein the at least one pair of crowder rollers includes a first pair of crowder rollers and a second pair of crowder rollers, the first pair of crowder rollers including a first crowder roller positionable in a predetermined downstream position within the application zone and a second crowder roller positionable in a predetermined upstream position within the application zone, the second pair of crowder rollers including a third crowder roller positionable in a predetermined lateral position and a fourth crowder roller positionable in an alternate predetermined lateral position, the first, second, third and fourth crowder rollers contacting respectively first, second, third and fourth sides of the sheet.
7. The assembly of claim 1 , wherein at least one of the crowder rollers is movable vertically to allow the sheet to be conveyed on the conveyor rollers past the crowder rollers before or after application of the strip.
8. The assembly of claim 1 , wherein the conveyor rollers include a support roller in substantial registration with the strip applicator for contacting a bottom side of the sheet below the strip applicator during application of the strip.
9. The assembly of claim 8 , wherein the support roller is an idler roller.
10. The assembly of claim 1 , further including the strip applicator, the strip applicator being positioned in the strip application zone above the conveyor rollers for applying a strip to a sheet registered by the crowder rollers.
11. The assembly of claim 10 , wherein the conveyor rollers include a support roller in registration with the strip applicator for contacting a bottom side of the sheet below the strip applicator during application of the strip, the strip applicator including at least one roller for pressing the strip onto an opposite side of the sheet in registration with the support roller.
12. The assembly of claim 10 , wherein the strip applicator is movable relative to the crowder rollers and the conveyor rollers during application of the strip.
13. An assembly for stabilizing a sheet of glass during application of a strip by a strip applicator, the assembly comprising:
a series of conveyor rollers arranged so as to define a conveyor for conveying the sheet into and within a strip application zone, each conveyor roller having a central conveyance axis, the respective central conveyance axes of the conveyor rollers extending substantially parallel to each other along a conveyance plane;
one of the conveyor rollers being a support roller in substantial registration with the strip applicator for contacting a bottom side of the sheet below the strip applicator during application of the strip, the support roller providing a counteracting upward force to the bottom side of the sheet if operation of the strip applicator causes a downward force, thereby maintaining the sheet in a substantially planar condition; and
a plurality of crowder rollers, each crowder roller having a central crowder axis extending substantially perpendicular to the conveyance plane, each crowder roller being respectively positionable so as to contact a given edge of the sheet to register the sheet in the strip application zone relative to the strip applicator, at least one crowder roller located within the strip application zone.
14. The assembly of claim 13 , wherein the support roller is an idler roller.
15. The assembly of claim 13 , further including the strip applicator, the strip applicator being positioned in the strip application zone above the conveyor rollers for applying a strip to a sheet registered by the crowder rollers.
16. The assembly of claim 15 , wherein the strip applicator includes at least one roller for pressing the strip onto an opposite side of the sheet in registration with the support roller.
17. The assembly of claim 13 , wherein at least one of the crowder rollers includes an outer surface having a noncylindrical portion, the noncylindrical portion having an increasing diameter in an upward direction relative to the conveyance plane.
18. The assembly of claim 13 , wherein crowder rollers are provided around the strip application zone so as to contact and register four edges of the sheet.
19. An assembly for stabilizing a sheet of glass during application of a strip by a strip applicator, the assembly comprising:
a conveyor comprising a plurality of conveyor rollers for conveying the sheet into and within a strip application zone along a conveyance plane and defining a conveyance direction;
a first crowder roller assembly comprising at least one crowder roller disposed in relation to the conveyor such that the at least one crowder roller extends through the conveyance plane and is positionable to contact a first side of the sheet upstream of the strip applicator in the conveyance direction, the first side substantially perpendicular to the conveyance direction; and
a second crowder roller assembly comprising at least one crowder roller disposed in relation to the conveyor such that the at least one crowder roller extends through the conveyance plane and is positionable to contact a second side of the sheet downstream of the strip applicator in the conveyance direction, the second side opposite the first side and substantially perpendicular to the conveyance direction.
20. The assembly of claim 19 , further comprising:
a third crowder roller assembly comprising at least one crowder roller disposed in relation to the conveyor such that the at least one crowder roller extends through the conveyance plane and is positionable to contact a third side of the sheet at a point substantially coincident with the strip applicator in the conveyance direction, the third side substantially parallel to the conveyance direction; and
a fourth crowder roller assembly comprising at least one crowder roller disposed in relation to the conveyor such that the at least one crowder roller extends through the conveyance plane and is positionable to contact a fourth side of the sheet at a point substantially coincident with the strip applicator in the conveyance direction, the fourth side opposite the third side and substantially parallel to the conveyance direction.