A hot stamping system with an automatic hot stamping quality detection device

Abstract

The invention discloses a hot stamping system with an automatic hot stamping quality detection device. The hot stamping system comprises: a laser transfer film unwinding device (210), a laser transfer film winding device (220) and an embossing transfer device ( 230), the embossing transfer device is installed between the laser transfer film unwinding device and the laser transfer film winding device, it also includes an automatic hot stamping quality detection device, and the automatic hot stamping quality detection device is set Downstream of the embossing transfer device (230), the automatic hot stamping quality detection device includes a light source (101), an image acquisition device (102) and an image processing device (103).

Description

technical field [0001] The invention relates to the field of machinery, in particular to a hot stamping system with an automatic hot stamping quality detection device. Background technique [0002] Hot stamping, commonly known as "hot stamping", has a long history in China. In the past ten years, hot stamping technology has been rapidly developed and widely used, such as hot stamping of paper products, hot stamping of textiles, hot stamping of decorative materials, hot stamping of plastic products, etc. [0003] Hot stamping is an important means of surface decoration of plastic parts. It uses the heated hot stamping head to make the metal or paint on the hot stamping film laminated to the surface of the workpiece to be processed to achieve the purpose of decoration or logo. [0004] The existing hot stamping methods generally include two kinds of flat ironing and hot ironing. Flat ironing, as the name suggests, refers to a die whose reference plane is a flat surface, whi...

AI Technical Summary

Problems solved by technology

[0005] Existing hot stamping equipment generally does not include quality inspection devices for hot stamping products. At present, the quality inspection of hot stamping products is mainly carried out manually or quality inspection equipment is purchased separately. The existing testing equipment is mainly used for product defect detection. It is based on the defect feature detection of the inspected image or the direct comparison with the reference image, but this detection method is prone to false detection when the hot stamping product is detected, because the hot stamping product is irradiated by the light source. Reflection and other phenomena are prone to occur under the environment, and the flatness of different products is different. The different flatness of the target area (referring to the radian of the flat product itself) will bring different reflection effects, but this product cannot be identified by existing methods The image difference caused by different radians

Moreover, since the existing detection methods are all based on the detection of the entire product, in fact, the formation of the secondary product of the hot stamping product may be more caused by the hot stamping process, and the existing methods generally want to separately detect the hot stamping part. Complicated image segmentation, especially for relatively complex bronzing patterns, is more difficult to achieve

Images