General classification of molds: a plastic mold and non-plastic mold:
(1) Non-plastic molds have: casting mold, forged mold, stamping mold, die casting mold, etc.
a. Casting mold – faucet, pig iron platform
b. Forged mold – car body
c. Stamping Mode – Computer Panel
D. Die-casting mold – supernucleosity, cylinder block
(2) The plastic mold is divided into:
. Injection molding die – TV enclosure, keyboard button (most common)
b. Blowing mold – beverage bottle
c. Compressed molding die – electric wood switch, science porcelain dish
d. Transfer molded die – integrated circuit products
e. Extruded molding die – glue pipe, plastic bag
f. Thermoforming mode – transparent molding packaging housing
g. Rotary molding die – soft rubber doll toy
A useful for plastic molding, extrusion, injection, blow molding And low foaming molded plastic molds, which mainly includes a modular die having a variable cavity having Metal Stamping Tooling a variable cavity consisting of a concave mode substrate, a recess assembly, and a concave mode card plate, a convex mode substrate, a convex module assembly , The convex mode combination card plate, the cavity truncation assembly, and the side-crossing plate composed of a transformed plate having a variable core. Coordinated variation of mold convex, concave mode and auxiliary molding system. Series of different shapes and different sizes can be processed.
We daily production, various tools and products used in life, large to the base, body shell, small to a embryo screw, buttons, and all kinds of household appliances, there is no The model has a close relationship. The shape of the mold determines the shape of these products, the quality and accuracy of the mold, also determines the quality of these products. Because of the different materials, appearance, specifications and uses of various products, molds are divided into non-plastic molds such as casting molds, forged molds, die-castings, stamping molds, and plastic molds.
1, in recent years, with the continuous improvement of the rapid development of the plastic industry and the continuous improvement of intensity and accuracy, the application of plastic products is also expanding, such as Many fields such as household appliances, instrumentation, building equipment, automotive industry, daily hardware, etc., the proportion of plastic products is rapidly increased. A design reasonable plastic parts tend to replace multiple traditional metal parts. The trend of industrial products and daily products is constantly rising.
2, general definition of the mold: In industrial production, use a variety of press to put metal by pressure on the pressure machineOr non-metallic materials make a part or article of the desired shape, which is collectively referred to as a mold.
3, an injection molding process Description: The mold is a tool for producing plastic products. It consists of several sets of parts, and this combination has a molding cavity. When injection molding, the mold is sandwiched on the injection molding machine, the molten plastic is injected into the molding cavity, and the shape is cooled in the cavity, and then the upper and lower molds are separated from the mold cavity from the mold cavity, and finally the mold is closed. The next injection molding is carried out, and the entire injection process is carried out.
4, (1) On the module, it is molded from the product when opening mold, the design is the simplest, easy to process, low cost, and more people use large waterport system operations.
(2) Waterway mold: flow path and gate are not on the mold line, generally directly on the product, so it is necessary to design a multi-set water port division module, more complex design It is difficult to processes, and generally choose a fine water exit system depending on the product requirements.
(3) Heat track mold: Such mold structures are substantially the same as the fine water port, and the maximum difference is that the flow path is in one or more thermal travel plates and hot mouth, no cold. The mold, the flow path and the gate are directly in the product, so the flow path does not need to be demolded. This system is also known as an airborne system, saving raw materials, suitable for the premiere of raw materials, high requirements, difficulties, difficulties The mold cost is higher.