Share tips on the structure and design of injection moulds

 Knowledge points

(1) Classification of injection moulds: To master the classification of injection moulds according to their structural characteristics.

(2) Typical structure of injection moulds: to master the structure of single parting face injection moulds, the working principle of typical single parting face injection moulds, the main component systems of typical moulds, the structure of double parting face injection moulds, the working principle of typical double parting face injection moulds, the structure of side core extraction moulds, the side core extraction mechanism of inclined column slider.

(3) The relationship between injection mould and injection machine: mastering the calibration of the main process parameters of the injection machine and the calibration of the relevant installation dimensions of the injection machine.

(4) Parting surface selection: mastering the parting surface and its basic form, the general principles of parting surface selection,

(5) Casting system design: master the basic principles of pouring system composition and design, design of general pouring system, design of exhaust and induced air system.

(6) Structural design of moulded parts: master the selection of mould materials, structural design of moulded parts (concave moulds, convex moulds), calculation of working dimensions of moulded parts, calculation of strength and stiffness of moulded parts.

(7) Push-out mechanism design: master the design requirements of the push-out mechanism, the primary push-out mechanism, the secondary push-out mechanism and the automatic shedding form of the point gate.

(8) Lateral parting and core extraction mechanism design: master the principle of parting and core extraction of inclined column parting and core extraction mechanism and the design of components, the working principle and structure of inclined slider lateral core extraction mechanism, the combination of inclined slider and the form of guide slip.

(9) Injection mould frame: To master the structure of plastic injection mould frame, classification and marking of plastic injection mould frame, the main standard mould frame of each country and the selection of standard mould frame.

(10) De-threading mechanism: to master the requirements of threaded plastic parts for mould release and the way of threaded plastic parts release.

(11) Mould temperature control system design: to master the main points of mould cooling system cooling water channel design, cooling device.

(12) Injection mould design steps: mastering the general steps of injection mould design.

(13) Injection mould design examples: mastering the analysis of plastic products in injection mould design, determination of injection machine, calculation of mould design and mould structure design.