Many people do not understand the mold, what is the mold? A mold is a production tool that can produce parts with certain shape and size requirements. That is to say, the molds that people usually say, such as the casings of TV sets, telephones, plastic barrels and other commodities, are produced by injecting plastic heating software into the molds for cooling and molding. Any commodity is made with molds. It can be said that there is no production of products without molds.
What is A Mould?
A mould is a model, and a product is made according to this model, and a large number of products or parts with the same specifications can be manufactured using this mold. Moulds are widely used, such as mechanical and electrical products: automobile parts, camera parts, household appliances parts, etc., as well as daily utensils, such as pots, bowls, spoons, mobile phone cases, pudding cups, etc. A large number of moulds are used in our daily living.
Moulds are divided into metal molds and non-metal molds according to the different materials to be formed.
Metal moulds are divided into: casting molds, forging molds, die-casting molds, stamping molds, powder metallurgy molds, etc.
Non-metallic moulds are divided into: plastic moulds and inorganic non-metallic moulds.
Plastic moulds are: injection moulding mould, extrusion moulding mould, compression moulding mould, suction moulding mould, blow moulding mould, high foam polystyrene moulding mould...etc.
Inorganic non-metallic molds are divided into: sand molds, ceramic injection molding molds, vacuum molds, paraffin molds, etc.
How is the Mould Made?
1. Mould design: Generally speaking, we will first analyze whether the demanded products are feasible, and then determine the process and then draw the mould diagram and proofread, and then process it according to the required materials of the mould.
2. Mould processing: The mould prototype is cut (discharge machining, heat treatment, grinding, etc.) through tool machine tools (lathes, milling machines, grinders, etc.) to achieve the shape required for the design.
3. Mould test: After the mould base and mould are assembled, test the mould, and then adjust.
Although there are many types of moulds, their functions are similar. It can be said that moulds are the mother of industry and a very common tool in modern industry. They are also the core of basic production and have a crucial impact on industrial upgrading.
The mould has a specific contour or inner cavity shape, and the contour shape with the cutting edge can separate the blank according to the contour shape, that is, punching; the inner cavity shape can make the blank obtain a corresponding three-dimensional shape.
The mold is generally divided into two parts: the movable mold and the fixed mold, or the punch and the concave mold, which can be divided and combined. When separated, the blank is loaded or the part is taken out, and when it is closed, the part is separated from the blank or formed. In the process of blanking, forming stamping, die forging, cold heading, pressing and compression molding, the external force required for separation or forming is exerted on the blank through the mold; in the extrusion, die casting and injection molding process, the external force is caused by air pressure, column Plugs, punches, etc. are applied to the blank, and the die bears the expansion force of the blank.
In addition to the mold itself, it also needs a mold base, a mold base, a guide device, and a part ejecting device, etc. These parts are generally made into a general-purpose type to be suitable for a certain range of different moulds.
The application of moulds is extremely extensive, and a large number of moulds are used in the manufacture of mass-produced electromechanical products, such as automobiles, bicycles, sewing machines, cameras, motors, electrical appliances, instruments, etc., as well as in the manufacture of household appliances.
The mould is basically produced in a single piece, its shape is complex, and it has high requirements on structural strength, rigidity, surface hardness, surface roughness and machining accuracy, so mould production requires a high level of technology. The timely supply and quality of moulds directly affect product quality, cost and new product development. Therefore, the level of mold production is one of the important signs of the level of machinery manufacturing.