Injection mold form, structure, many varieties, in order to facilitate the understanding and analysis of injection mold, it is necessary to classify. Many classification methods of injection mold were introduced, the following.
  1.mortgage purchase feature classification. This is a most common classification, basically have the following kinds. Single parting surface of injection mold, the mold is only between the moving mold and the fixed mold has a parting surface, it is also called the two plate injection mold, according to statistics, which accounted for about 70% of the total number of injection mold injection mold; double surface injection mold, also called the three plate injection mold, the mold in addition to dynamic, template. There is a parting surface, and a function of other auxiliary parting surface; with side parting and core pulling injection mold, the concave side or the side hole plastic piece, in the mold is set by the oblique guide column or diagonal block composed of side parting and core pulling mechanism, so that the side the core for lateral movement; with the activities of forming parts of injection mold, the mold in the mold can be molded parts can be activities, such as movable punch, die, forming rod activities activities activities, forming block, so that the mold can be conveniently taken out plastic parts; with automatic unloading screw mechanism of injection mold for the plastic parts, threaded, it can automatically release in injection moulding, can set the thread core or ring can rotate in a mould, by rotating or reciprocating movement of the screw injection molding machine itself, plastic extrusion, when necessary, can also be a The original motivation, drive the screw thread core or ring rotation, screw plastic exit; fixed mold has launched demoulding mechanism of injection mold, general injection molding, plastics molding on the moving die side, this is in order to work convenient demoulding mechanism. But at certain times due to the special requirements of some plastic or plastic parts shape constraints, can only stay in the fixed mold, plastic mold will not be smooth, set to launch institutions should make mould side, this is a kind of structure is special mold.
  2.other classification methods. According to the classification of plastic material categories, according to the forming characteristics of the plastic, plastic thermoplastic and thermosetting plastic, and is suitable for the two kinds of injection mold are thermoplastic and thermosetting plastic injection mold plastic mold. Classification according to the number of mold cavity. The number of mold in injection mold cavity is not a, therefore, the number of cavity can be divided into single cavity injection mold and injection mold cavity. Classification according to the features of gating system. The gating system is the main part of injection mold, according to their different characteristics, can be divided into the cold runner injection mold, heat runner injection mold, injection mold hot runner mold and Onew. According to the classification of the mold installation. The die is arranged on the injection molding machine is different, therefore can be divided into mobile and stationary mould injection mould. Classification according to the form of injection molding machine. Injection molding machine is horizontal or vertical type, and the angle type three kinds, and the injection mold for vertical injection molding machine for injection molding, horizontal injection molding machine using the injection mold and the angle type injection molding machine injection mold.