A bronzing equipment based on the principle of pneumatic heating to eliminate the pressure difference between inside and outside

Abstract

The invention relates to the field of die-cutting hot stamping technology, and discloses a hot stamping equipment based on the principle of pneumatic heating to eliminate the pressure difference between the inside and outside, including a housing, the inside of the housing is fixedly connected to an elastic column, and the end of the elastic column away from the housing is fixed It is connected with a hot stamping plate, and the lower part of the hot stamping plate is provided with a printing plate. The inside of the hot stamping plate is fixedly connected with a high-pressure pipeline, and both sides of the high-pressure pipeline are fixedly connected with a control mechanism. The surface is hinged with light boxes. The air flow has a certain pressure and flow rate. At the same time, the hot stamping plate moves downward under the push of the elastic column. When the hot stamping plate is in contact with the printing plate, the air flow entering the high-pressure pipeline has never been set at the position of the air blocking block. Outflow, that is, ejected from the center of the high-pressure pipeline, exerts a certain pressure on the inside of the hot stamping object, and the air flow has a certain temperature, so that the pressure and temperature inside and outside the hot stamping object are not much different.

Description

technical field [0001] The invention relates to the field of die-cutting bronzing technology, in particular to a bronzing device based on the principle of pneumatic heating to eliminate the pressure difference between the inside and the outside. Background technique [0002] Hot stamping refers to the process of hot stamping anodized aluminum foil onto the surface of the substrate under a certain temperature and pressure. In order to ensure the smooth transfer of the aluminum layer to the substrate, a heating embossing device is usually used to transfer heat to the anodized aluminum foil. The anodized aluminum foil is heated to melt the hot-melt dyed resin layer and adhesive, and the dyed resin layer is less viscous. After the sensitive adhesive melts, the viscosity increases, and the aluminum layer and the anodized aluminum base film are peeled off and transferred to the substrate at the same time. As the pressure is removed, the adhesive cools and solidifies rapidly, and t...

AI Technical Summary

Problems solved by technology

[0003] During the hot stamping process, as the hot stamping speed increases, the contact time between the hot stamping plate and the anodized aluminum foil becomes shorter, and the heat transferred to the anodized aluminum foil decreases, so that the aluminum layer cannot be transferred to the substrate smoothly; When the substrate is in contact, the pressure caused by the pattern of the hot stamping plate on the surface of the substrate is not uniform, and the edge of the pattern of the hot stamping plate is greater than the internal pressure of the pattern, which causes the heat and pressure obtained by the anodized aluminum foil to be different; when the hot stamping plate When the edge of the pattern reaches the hot stamping condition, the interior of the pattern of the hot stamping plate has not yet reached; by increasing the temperature and pressure, when the interior of the pattern of the hot stamping plate reaches the hot stamping condition, the edge has exceeded the hot stamping condition, which will cause damage to the anodized aluminum foil and the substrate , the faster the hot stamping speed, the greater the difference, so a hot stamping equipment based on the principle of pneumatic heating to eliminate the pressure difference between inside and outside came into being

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