Each product does not want to have uneven and potholes on the surface of the product, so it is important for the surface finish of silica gel products. The main mold polishing method of silica gel products is mainly to reduce the roughness of the steel surface of the mold. To truly ensure the surface finish of silica gel products, we need to start from the mold process, so for the surface finish of silica gel mold What are the treatment methods of the process? Electropolishing is to make the surface smooth by selectively dissolving the tiny protruding part of the material surface. Compared with chemical polishing, it can eliminate the influence of cathode reaction and has better effect. Mechanical polishing is a polishing method to get a smooth surface by removing the convex part after being polished by plastic deformation of the cutting material surface. Generally, oilstone strips, wool wheels, sandpaper, etc. are used. Manual operation is the main method. Auxiliary tools such as turntable can be used for special parts, and ultra precision polishing method can be used for those with high surface quality requirements. Hangzhou injection mold design and manufacturing - Shenzhen hengxingchang Mold Co., Ltd
Die is an important basic forming equipment in industrial production, which is often called "the mother of industry". With the rapid development of China's auto industry, the auto mold industry has become the most important part of China's mold industry, and the scale of the industry is expanding. Under the promotion of national automobile lightweight policy, the development of automobile lightweight is an inevitable trend, which will effectively promote the development of injection mold.
More than 95% of the auto parts need to be processed and manufactured in batches by means of molds. In the development of a new car, more than 20000 auto parts are needed, including sheet metal parts, die-casting parts, stamping parts, plastic parts, electronic components, etc. In the R & D and manufacturing process of these parts, a large number of molds and jigs are needed, among which the demand for injection mold is the largest.
Injection molding, also known as injection molding, is a method of injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automatic operation, many varieties of designs, simple to complex shapes, large to small sizes, accurate product sizes, easy to update products, and complex shapes. Injection molding is suitable for large-scale production and shape complex products and other molding processing fields.
At a certain temperature, the completely melted plastic material is stirred by a screw, injected into the mold cavity with high pressure, cooled and solidified, and then the molded product is obtained. This method is suitable for the mass production of complex shape parts and is one of the important processing methods. The temperature to be controlled in the injection molding process includes barrel temperature, nozzle temperature and mold temperature. The first two temperatures mainly affect the plasticization and flow of plastics, and the second temperature injection mold mainly affects the flow and cooling of plastics.
No matter what kind of structure, the connecting rod is fully extended to implement the closing force. The straightening process of the connecting rod is the process of opening the movable plate and the tailboard, and the process of stretching the four connecting rods. The magnitude of the clamping force can be known from the highest value of the oil pressure gauge rising at the moment of clamping. If the clamping force is large, the highest value of the oil pressure gauge will be high, otherwise it will be low.
The smaller injection molding machine is not equipped with a die closing oil pressure gauge. At this time, it is necessary to judge whether the die is really closed according to the extension of the connecting rod. If the connecting rod of a certain injection molding machine is easily straightened when closing the mold, or "almost" fails to straighten, or one of several pairs of connecting rods of Hangzhou injection mold is not fully straightened, the mold will expand during injection molding, and the parts will have flash or other problems.
The mold monitor uses the machine vision contrast function and the powerful computing speed of the computer CPU to process the image data in real time. By analyzing the images captured during the operation of the machine and intelligently monitoring the operation of the injection molding machine, it can effectively detect whether the product is qualified, and check whether there is any residue before closing the mold, so as to prevent the mold from clamping damage, its detection accuracy and the domestic The applicability of different brands of injection molding machines has greatly exceeded that of similar foreign products.
When the injection molding machine opens the mold in place, the output signal triggers the mold protector, which takes a continuous image of the mold cavity and monitors whether the thimble ejects and drops the molded workpiece. When the workpiece falls completely, the mold protector of Shenzhen hengxingchang Mold Co., Ltd. sends a confirmation signal to the injection molding machine to start the next cycle.
This process is to print the pattern on the film, extrude the film and the mold cavity through the film feeder, separate the ink layer with pattern from the film after extrusion, leave the ink layer on the plastic part and get the plastic part with decorative pattern on the surface, there is no transparent protective film on the final product surface, and the film is only a carrier in the production process. But the advantage of IMR lies in the high degree of automation and low cost of mass production. Disadvantages of IMR: the thickness of the printed pattern layer on the product surface is only a few microns. After the product is used for a period of time, it is easy to wear out the printed pattern layer, and it is also easy to fade, resulting in a very ugly surface. In addition, the development cycle of new products is long, the development cost is high, and the pattern color can not achieve small batch flexible change, which is also insurmountable by IMR process.