Long-span welding belt threading mechanism, welding belt supply device and stringer

Abstract

The invention provides a long-span welding strip threading mechanism. The long-span welding strip threading mechanism comprises a middle beam, an input guide mechanism and an output guide mechanism, wherein a plurality of containing grooves for containing welding strips are formed in the upper surface of the middle beam along the length direction of the middle beam; the input guide mechanism is also provided with a plurality of inlet guide grooves for containing the welding strips; the output guide mechanism is also provided with a plurality of outlet guide grooves for containing the welding strips. According to the long-span welding strip threading mechanism provided by the invention, the grooves with certain depth are formed in the middle beam, and the grooves for containing the welding strips are also formed in the input guide mechanism and the output guide mechanism; the depth of the grooves of the input guide mechanism and the depth of the grooves of the output guide mechanism are set according to the depth of the grooves of the middle beam, so that the welding strip is controlled to be transported at upper ends of bottom surfaces of the grooves in the middle beam all the time; when the welding strip is loosened or after the welding strip is used up, the welding strip is located in the grooves of the middle beam all the time and mutual winding is not caused.

Description

technical field [0001] The invention relates to the technical field of ribbon supply and welding for solar cells, in particular to a long-span ribbon threading mechanism, a ribbon supply device and a stringer. Background technique [0002] Since the development of the photovoltaic industry, automatic equipment for connecting solar cells for series welding, referred to as stringer, has been widely used. In this automated stringer, the structure of the ribbon supply device for supplying ribbon is also relatively Many, the welding strip device generally includes a welding strip roll mechanism, an overlapping part, and a welding strip threading mechanism, and generally the distance between the welding strip winding mechanism and the pulling welding strip threading mechanism is relatively long, and the welding strip is in the If it is loose or used up, it will fall down and affect the work of other processes. Therefore, a shaft is generally used to overlap the welding ribbon so a...

AI Technical Summary

Problems solved by technology

[0002] Since the development of the photovoltaic industry, automatic equipment for connecting solar cells for series welding, referred to as stringer, has been widely used. In this automated stringer, the structure of the ribbon supply device for supplying ribbon is also relatively Many, the welding strip device generally includes a welding strip roll mechanism, an overlapping part, and a welding strip threading mechanism, and generally the distance between the welding strip winding mechanism and the pulling welding strip threading mechanism is relatively long, and the welding strip is in the If it is loose or used up, it will fall down and affect the work of other processes. Therefore, a shaft is generally used to overlap the welding ribbon so as not to affect the work of other processes in the stringer or bring other hidden dangers to quality. The method is easy to control when the number of welding ribbons is small, but when the number of welding ribbons is large and the distance between the welding ribbon coiling mechanism and the welding ribbon threading mechanism is farther, it cannot meet the requirements of the welding ribbon supply device. requirements, it is very easy to cause interference when wearing the ribbon and the ribbon is loose or entangled after being used up.

Images