The first is material selection.
At present, the acrylic sheets seen in China are basically imported or produced by foreign joint ventures, and the quality of the sheets should be said to be relatively good.
The second is mold making.
Acrylic board is formed by vacuum positioning and suction. Even if the same word is different in size, different molds are needed, and the mold production itself requires high precision and good quality. Because the precision and quality of the mold itself are directly related to the quality of acrylic products.
The third is post-production
At present, the production of acrylic plastic absorption is basically mechanized. The application of new equipment greatly reduces the labor intensity of workers and improves the production efficiency. After the acrylic plastic absorbing material is basically formed, it has to go through several processes such as edge milling, router milling and polishing. Finally, the light box is paved with light source and painted.
The fourth is image processing.
Henan Today Advertising is a professional design and production company of luminous characters. Make all kinds of luminous characters
According to the different needs of customers, directly through screen printing. The picture is transferred to an acrylic board and then molded by vacuum suction. There are people, animals or commodities in the picture, which can be molded by plastic again.
The specific method of making LED exposed luminous characters:
Before making LED luminous characters, let's learn about the basic materials of LED luminous characters (LED exposed luminous characters): acrylic board, galvanized board, stainless steel, titanium board and so on.
1, first punch holes on the whole board of the machine tool (the aperture is determined according to the LED size);
2. Weld the engraved characters into solid edges (in the same way as drawing characters);
3. Polishing the corners of characters without burrs;
4, baking paint treatment;
5. There are two ways to install 5.LED lamps: a. One is the earlier method (low material cost but more labor), that is, connect the bare lamps one by one, calculate the current, and then seal them with glue for waterproof treatment, which is more likely to cause problems; B, one of the most widely used methods (high material cost but less labor) is that every lamp made by many manufacturers now has a waterproof rubber sleeve and a well-connected light string. This method has been widely used in this market, and it is also easier to maintain and more secure.
Method for manufacturing LED three-dimensional luminous characters
; Calculate the number of LED modules: arrange them at equal intervals, simulate the distribution of LED modules on the computer, and preliminarily estimate the number of LED modules needed. The visual brightness of module spacing needs to be between 3-6cm, and the thickness of luminous characters can be selected between 5- 18cm.
Step 2 > > Calculate the total power consumption and select the power supply: estimated number of LED light source modules × power of a single module = total power consumption. It is suggested that the power supply should be selected with a margin and used at 75% of the rated power. Choose common or waterproof power supply according to the use environment.
Step 3 > > Install the module: ① Clean the installation surface; ② Stick it on the bottom of the module with double-sided tape; (3) uniformly arranged and connected; (4) install the trough plate and measure the effect; ⑤ Final product.
Method for make resin luminous characters:
Resin luminous character consists of shell, filler and luminous source. The shell part is made of plastic (ABS) injection molding or metal plate (iron sheet, stainless steel, titanium gold, etc.). ) welding and forming; The fil raw materials in that shell are cast and mol by modified liquid resin; The light source is ultra-high brightness semiconductor light emitting diode (LED).
1. Make fonts and line up. Note: the interface between the circuit and the mold can be sealed with glass glue or silica gel, and it must be sealed to avoid resin leakage.
2. Casting the prepared resin material. That is, 3 parts A+ 1 part b note: the resin level is about 5mm from the top of the mold, and the casting is stopped. The thickness of resin casting layer is about 2cm. This layer is cast into a colorless and transparent casting layer. It can be called a photoconductive layer.
3. After the light guide layer is cured, the second layer, a color paste of A+B+ brightener+color paste, that is, 3 parts of A+ 1 part of B+(2-3% A) brightener +(0.5- 1% A), is poured into the whole font.
4. Natural temperature, or heating curing, so that the uniform optical layer is cured.
5. Repair the improper place.
6. Note:
1) The inner wall of the font can be painted with reflective paint, so that the light emitted by the light source can be repeatedly refracted inside the font to avoid the loss of the light source.
2) It is necessary to control the thickness of the light guide layer and the light equalization layer. The above are 2.5 cm to 3 cm thick resin luminous characters. 3. After mixing, A and B must be used up within 12 hours (it will gradually thicken during this time, and can be reused if the viscosity can still be reversed). If they can't be used up, they should be discarded and can't be returned to A or B. Henan Jinshi Advertising Design and Production Company.
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