A method of uncoiling and blanking

Abstract

An uncoiling and blanking method includes uncoiling a coiled strip, straightening, cutting off the leading end, moving into a looper, moving out of the looper, then cleaning the surface of the coiled strip, and flattening; conveying the coiled strip on a pinch roller to perform laser cutting and blanking, wherein dual static laser cutting heads are used for cutting the coiled strip during the laser cutting, and the cut-away waste materials fall down from the cutting region and are conveyed to the outside; and after the completion of cutting, finally cutting off the obtained sheets from each other, receiving them by a receiving device and conveying same on a conveying belt to a picking up and stacking region to stack the sheets. An uncoiling and blanking method of the present invention adopts laser static cutting, can effectively improve the operation speed and yield by means of cooperative operation of two laser cutting heads, replaces the die blanking method, and has no die or maintenance cost associated therewith, requires no die stacking space, has a more flexible operation mode, simplifies the layout of the production line, and is easy to handle.

Description

technical field [0001] The invention relates to the field of processing automobile sheets and coils, in particular to an uncoiling and blanking method. Background technique [0002] Today, in the face of the various limitations of the traditional mold blanking line, steel processing centers and OEMs are in urgent need of a flexible blanking production line to reduce mold design, processing, maintenance and maintenance costs, shorten R&D and processing time such as mold development and mold trial cycle, and at the same time, respond to the market's growing demand for new models and small-batch personalized models. [0003] Chinese patent CN102105256 adopts at least two movable gantry and at least one movable laser cutting head for each gantry to cut horizontally or vertically. During the cutting process, the strip moves, and the cutting head follows the strip for dynamic cutting. This method The production output close to that of the traditional blanking line can be obtained...

AI Technical Summary

Problems solved by technology

The processing head between the two belt-type transmission mechanisms inevitably produces indirect cutting contact with the belt in the cutting area, so that the detection and replacement of the transmission belt affects the continuous production of the system. At the same time, there is a small area of ​​waste falling in the cutting area. possibility of falling

[0005] The patent is based on the improvement of material utilization rate by laser cutting, strong adaptability to plate thickness and plate width, and the advantages of greatly simplifying the production line without special molds. However, according to the requirements of high speed and high output of the production line, and reliable There is a certain conflict between high cutting quality and smooth waste removal, which is still the technical difficulty of high-speed laser cutting for material processing.

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