Series welding machine for preventing welding strip from being twisted and method thereof

Abstract

The invention provides a series welding machine for preventing a welding strip from being twisted. A device for preventing the welding strip from being twisted is arranged on a welding strip conveyingpath and located before a welding station of the series welding machine. The device for preventing the welding strip from being twisted is used for clamping a flat section of the welding strip and releasing the flat section after the flat section of the welding strip is restored to the position parallel to a battery piece. In addition, the invention also provides a method for preventing the welding strip from being distorted, and the method aims to restore the welding strip before the welding strip and the battery piece are welded into a string, so that the welding quality of the battery string is improved.

Description

technical field [0001] The present invention relates to a device for controlling the welding ribbon, and further relates to a device for preventing the twisting of the welding ribbon, especially to a stringer for preventing the twisting of the soldering ribbon. A method of preventing twisting of the ribbon. Background technique [0002] At present, the component market uses a large number of dense-grid solar cells and their various slices. The conductive strips interconnected with dense-grid solar cells and their various slices generally use round or triangular or special-shaped ribbons. In order to avoid cell cracks in the connecting section of the battery sheet and the battery sheet after the lamination process, the conductive tape of the connecting section of the battery sheet and the battery sheet is generally prepared in a flat shape, because the main grid lines of the dense grid solar cell are densely packed. And thin, so the interconnected conductive tape used is als...

AI Technical Summary

Problems solved by technology

[0002] At present, the component market uses a large number of dense-grid solar cells and their various slices. The conductive strips interconnected with dense-grid solar cells and their various slices generally use round or triangular or special-shaped ribbons. In order to avoid cell cracks in the connecting section of the battery sheet and the battery sheet after the lamination process, the conductive tape of the connecting section of the battery sheet and the battery sheet is generally prepared in a flat shape, because the main grid lines of the dense grid solar cell are densely packed. And thin, so the interconnected conductive tape used is also very thin, only 0.3mm ~ 0.45mm, and the general supply of welding tape is supplied in a whole roll, which requires the use of automatic tape supply mechanism, tape distribution mechanism and tape cutting mechanism After preparation, they correspond to the main grid lines of solar cells one by one, and then perform interconnection welding. In this way, in the whole process of arranging the welding ribbons and the main grid lines of solar cells, the welding ribbons are clamped and controlled by the manipulator. Therefore, in a series of processes of preparing and arranging the ribbon on the busbar of the solar cell, the flat section of the ribbon is turned over and twisted, so that after the ribbon and the battery are interconnected and welded, the battery and the battery The flat ribbon of the connection section of the battery sheet may be turned over, so that in the lamination process, the connection section between the battery piece and the battery piece will still cause the battery piece to be cracked due to the unevenness of the welding belt

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