A kind of manufacturing method of three-dimensional hollow resin casting luminous characters

Abstract

The invention provides a three-dimensional hollow-resin-poured luminous character structure and a manufacturing method thereof. The three-dimensional hollow-resin-poured luminous character structure comprises a shell, a luminous light source and a resin pouring layer, the shell is of an open structure formed by surrounding of an undersurface and side faces, the middle portion of the resin pouring layer is hollow, and the periphery of the resin pouring layer is fixedly connected with the periphery of an opening of the open structure in a sealed manner. A reverse-side pouring method is adopted, resin is directly poured on a horizontal glass tabletop, and after the resin is coagulated, the horizontal glass tabletop is fixedly connected with a luminous character shell, so that light can uniformly transmit, a luminous character is high in brightness and uniform in light emitting, the manufacturing method is simple, and the luminous character structure is simplified.

Description

technical field [0001] The invention relates to the technical field of advertising luminous signs, in particular to a three-dimensional hollow resin casting luminous character structure and a manufacturing method thereof. Background technique [0002] Resin cast luminous characters, because the color and transmittance of the resin can be freely adjusted, make up for the shortage of single color selection of acrylic luminous characters and the inability to adjust the transmittance, and become the new favorite in the advertising sign industry. The structure of the three-dimensional resin cast luminous brand that is common on the market at present includes a metal letter shell (made of iron sheet baking paint, stainless steel, aluminum and other metals), an LED light source and a casting layer. The casting layer includes a transparent glue injection layer and a color glue injection layer from the inside to the outside. In order to save resin material, a support bar that is fix...

AI Technical Summary

Problems solved by technology

However, in actual operation, due to the limitations of hand-made character shells, after the character band and the character base plate are welded and formed, it cannot be guaranteed that the junction of the character band and the character base plate is a standard 90-degree right angle, so that the top surface of the character band Inconsistent vertical height from the letter base

When casting resin, just like the water capacity of a bucket depends on the shortest side, the resin cannot fill the case, causing the case to protrude or the resin to leak, resulting in uneven thickness of the color injection layer

The color injection layer contains leveling agent and color paste, and its uneven thickness will inevitably make the color and light transmittance of the surface different.

In a word, the manufacturing process of the traditional three-dimensional resin casting luminous name plate has the following defects in actual operation: First, due to the uncertainty of the manufacturing process level of the character shell, the thickness of the color glue layer of each character cast out is not the same. Uniform, resulting in differences in the color and brightness of the letter case

Second, the part of the top surface of the character side band that is higher than the top surface of the lowest character side band will be exposed, which greatly affects the appearance

Third, the structure of the resin cast luminous name plate is complex and the production process is cumbersome

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