The molding cycle can be shortened, the output can reach 5 seconds per mold and 4 cavities per mold, and the drawing angle should be reasonable to prevent ejection deformation and mold sticking. Sino mold l87-674lO-860? Everything is fine. The clamping structure of the die is also much more complicated than that of the ordinary die. The picture shows the thin-walled cup mold.
Sinoe is a company specializing in manufacturing thin-walled plastic molds. When designing products, we should pay attention to the following points:
1. The sealing surface should be set to zero. ?
2. The mating surface of the box body and the cover is 0.15-0.2mm ...?
3. The design time and space of the joint between the lid edge and the box body is about 0.8- 1mm, depending on the product size. 4. The design of ribs is generally thinner than that of products. Ultra-thin products are mostly made of transparent materials, and the rib is too thick and easy to produce bubbles. ?
Key points of thin-walled products and die structure design:
1. The product is simple in appearance, without any back button and convex hole, similar to a cup, and the surface of the product is more than 3 degrees, which can be designed as edge gas, oblique gas, valve, etc. ?
2. The height of the rib on the stripper plate is below1mm. For the processing of this rib position, the stripper plate can be embedded. 3. Design method of multi-cavity die: (1) Independent self-locking: Multi-cavity independent self-locking is suitable for the design of thin-walled dies of all shapes, each cavity is independent, and the clamping surface at the bottom of the core is planted in the core composite plate. (2) Integral mode locking: the wall thickness is greater than 0.8mm, and the machine is relatively small, so it is difficult to put it in. The whole structure is adopted, but it must be explained in advance. ?
4. Structural design of cavity and core: (1). Cavity cladding plate is generally made of S 136 steel. (2) The bottom of the cavity of the single-cavity bucket structure is empty, so it is necessary to ensure that the pressure plate is made of steel with a height of more than 45 mm to prevent the cavity from flash. (3) Use inserts at the edge of the cavity to reduce the fracture of the thin steel material in the cavity. (4) The water jacket is embedded in the sprue to reduce the cooling time of the hot runner.