Device for use in photovoltaic module manufacture
View Patent ↗An improved lead foil formation operation procedure for photovoltaic module manufacture is disclosed. The procedure includes lifting a lead foil to form a loop, pulling the loop through a hole in a plate, cutting the loop to form two ends, separating the ends, and folding the ends onto the plate.
1. A device for use in photovoltaic module manufacture comprising:
a positioning portion configured to pull a lead foil loop upwardly through and over a hole in a cover plate located adjacent to a photovoltaic module;
a cutter with at least one cutting surface configured to cut the lead foil loop to form two ends of the lead foil; and
a separator configured to separate the two ends of the lead foil and fold at least one of the two ends into contact with an outer surface of the cover plate.
2. The device of claim 1 , further comprising a mandrel configured to be positioned in the lead foil loop.
3. The device of claim 2 , wherein the mandrel comprises a groove designed to accept the cutter.
4. The device of claim 1 , wherein the positioning portion comprises a vacuum source located on a side of the cover plate, wherein the vacuum source is configured to pull the lead foil loop through the hole in the cover plate.
5. The device of claim 4 , wherein the vacuum source is configured to separate a cut-off segment of the lead foil loop from the two ends of the lead foil after the lead foil loop is cut by the cutter.
6. The device of claim 4 , further comprising:
a second vacuum source and a third vacuum source configured to separate a first and second side of the lead foil loop by applying a vacuum pressure to the first and second separate sides, respectively.
7. The device of claim 1 , further comprising a first roller and a second roller, said first and second rollers configured to be positioned between the two ends of the lead foil.
8. The device of claim 1 , wherein the cutter comprises a single cutting surface configured to cut the lead foil loop in the middle of the loop.
9. The device of claim 1 , wherein the cutter comprises two cutting surfaces.
10. The device of claim 9 , wherein the two cutting surfaces are designed to press against one another to cut the lead foil loop in two places substantially simultaneously.
11. The device of claim 1 , wherein the cutter comprises a cutting surface and a stopping surface, wherein the cutting surface and the stopping surface are designed to press against one another to cut the lead foil loop in two places.
12. The device of claim 1 , wherein the separator is located adjacent to the cover plate and movable away from the cover plate hole along an end of the lead foil to fold the end of the lead foil onto the cover plate.