Production process and technological process of LED blister luminous character

The blister light-emitting character is a kind of plastic processing technology. The surface of the board is usually made of acrylic board by Blister molding, and then the base is combined. The LED lamp or high-pressure lamp is placed inside, and the surface technology is in the form of flat drum, flat drum, ball drum, arris drum, etc. the box material is iron baking paint, aluminum profile, stainless steel luminous characters, titanium, etc. the literal color can be either the inherent color plate or spot color or four-color screen printing.

Production process of blister luminous characters

The general blister luminous characters can be divided into three steps when they are made, namely, material selection, mold making and post production, which are inseparable.

Procedure 1: material selection. As far as we can see in the market, most of the materials used for the light-emitting words are imported from abroad. Of course, there are cheap ones produced by our own country, but in order to consider for a long time, we hope that you can still use the imported materials to make them more stable. The price of imported board is generally about 30 yuan per kilogram, but the blister light-emitting words must be used in the manufacturing process into a block of board, which will cause great waste to the board. But it's also worth considering for quality.

Procedure 2: mold making. Mold making can be regarded as the most difficult and expensive step in the manufacturing of blister light-emitting words. Because of its special high requirements for mold making, it must be made by experienced staff, without any flaws, otherwise it will make the quality of the blister luminous characters unqualified.

Procedure 3: post processing. At present, the production of blister light-emitting words is made by mechanized production. However, when some blister light-emitting words are produced, the labor intensity of manpower is too low, which leads to a large number of rough edges after the production of products, which is not smooth and meticulous. So generally, we need to polish and milling the light-emitting words after they are made. After the embryos are polished, we can lay the light source on them.

There is also a part of the blister light-emitting words that should be made according to the needs of customers. For example, customers want to transfer characters, trademarks, or cartoon animation to the blister light-emitting words. At this time, we need to use vacuum suction molding to make these things into three-dimensional effects.

The production process of blister light-emitting words is as follows:

1. Document processing: This is the basis for making the blister light-emitting characters. Good design documents can make the production work more efficient. When modifying the documents for designing the blister light-emitting characters, you need to understand the principle of the engraving machine. In general, the files for blister light-emitting characters need to pay attention to that: the distance between the strokes and the strokes is generally more than 4mm, or even wider. If it is too small, the knife of the engraving machine will not run once There are internal mold or external mold, of course, small words can only be sucked by internal mold; there are also "R" angles of those words, which are too small, but also need to be made into a little arc angle, so that in the process of blistering, the words won't bulge or uneven; There are also documents for making blister light-emitting words. It should be noted that the errors of blister mold and blister finished products should be summarized. Only mastering these can make accurate blister light-emitting words and light boxes

2. Production of blister light-emitting character mold: generally, we use Wentai software to input the repaired documents to the engraving machine to engrave the density plate. Generally, the blister mold should be smooth and flat to make beautiful blister light-emitting characters. Do not cut corners, so as to ensure that the molding time is 100 times, and the acrylic force will not be crushed; What is worth mentioning here is the splicing of large-scale blister light-emitting character molds. Many blister light-emitting character molds are larger than the worktable of density board or engraving machine, so only the splicing is done, the splicing interface must be accurate, and the splicing is to choose the place with fine strokes as much as possible.

3. Blister production: nail the blister light-emitting word mold and polish it well. Pay attention not to have sharp burrs and corners, so as not to break the acrylic plate; When baking the acrylic plate in the oven, the temperature should be uniform, and the temperature resistance of each kind of acrylic is different. The time should be well controlled. Generally, the plastic can be pressed after it is soft, but before pulling out the acrylic plate, the dust and sand on the plastic absorption mold must be blown clean to ensure the surface of the mold is flat; the pressing palladium of the plastic absorption machine can be started up after the basic cold pressing of the acrylic plate, and it is easy to deform after it is taken out; When pressing the large light box panel, take the plastic absorption panel out of the mold and place it flat on the ground, otherwise it is easy to deform

4. Trimming: after forming the blister light-emitting characters, we need to smooth the surplus acrylic. Now we use automatic trimming machine, but we also need to use a good trimming knife, otherwise it is easy to repair the edges. We usually use Sichuan wood cutter

5. Screen processing. According to the different needs of customers, the screen printing is used to directly transfer the image to acrylic plate, and then the image is formed by vacuum suction. There are people, animals or commodity images in the image, and then the image can be molded into three-dimensional effect, so as to get better publicity effect.