Design of injection mould for mobile phone top cover (Nokia) PROE Paper Co., Ltd. : JX457 with map. There are opening reports, draft defense, and explanations. Words: 1332 1. Page number: 43 preface 1. The task of this design is the last comprehensive curriculum design in college life; It is a comprehensive training of theoretical knowledge and skills learned in our university for four years. Mold design is a very complicated work, which requires us to have better practical experience on the basis of mastering theoretical knowledge. Designing a good mold involves many processes, and a set of mold has many process schemes. The contents to be considered in the comparison include the analysis of plastic molding process, how to determine the parting surface, the number of cavities and the selection of injection molding machine models. To determine the overall structure, cavity and core structure of the mold, we should also consider the feasibility of the mold manufacturing process and the economy of the mold manufacturing; Design the gating system and determine the gate form and position size; Determine the form and size of main channel, shunt channel and cold material hole; Design of demoulding mechanism and calculation of demoulding force: determination of die frame; The design of side parting core-pulling mechanism, guiding mechanism and cooling system. Second, the design requirements 1. In the design process, we should integrate theory with practice, firmly grasp the basic theoretical knowledge and flexibly solve practical problems. 2. In the design process, we should constantly revise and draw up several schemes for comparison, and try to adopt a simple mold structure on the basis of ensuring the use requirements and appearance accuracy of plastic parts. 3. In the design process, we should constantly search for relevant design materials, and make bold and steady modifications on the basis of adopting the previous mold structure as far as possible, so as to design a novel mold. 4. The problems encountered in the design should be communicated with the instructor and completed reasonably, seriously and independently. 5. Try to use standard parts in the design, which can reduce the difficulty of mold manufacturing. Task book design topic The topic of this graduation project is: Injection mold for mobile phone plastic parts. Technical requirements: 1, no shrinkage cavity, bubble and other defects. 2. This part is matched with the bottom shell. 3. material: ABS. 2. Project design requirements: 1. Measure and draw plastic parts (PRO/ or UG is required) for product modeling. 2. Analyze the structure of plastic parts and determine the overall structure scheme of the mold. 3. Draw the parting map of cavity and center (3D modeling). 4. Assembly scheme of general assembly drawing of mold 5. Non-standard parts drawing. 6. Compile the manufacturing process of molding parts such as cavities and cores. 7. Description of mold assembly scheme. 8. Design specifications. The title of this project is: injection mold for plastic parts of mobile phone upper shell. This design mainly analyzes the feasibility of injection molding process through the requirements of the shape, size and precision of plastic parts. The molding process of plastic parts mainly includes the wall thickness, slope and fillet of plastic parts and whether there is a core-pulling mechanism. Through the above analysis, the parting surface, cavity number, gate form and position size of the die are determined. The most important thing is to determine the structure of the core and cavity, such as integral or inlaid, and their positioning and fastening methods. In addition, the stress of the mold, the design of demoulding mechanism, the design of clamping guide mechanism and the design of cooling system are also analyzed. Finally, draw a complete general drawing of mold assembly, the manufacturing process cards of main mold parts and molded parts. Key words: parting surface, gate, cavity, core, insert, demoulding force, latent gate. Abstract: The graduation project is: Injection mold for mobile phone battery door. This design mainly carries out the injection molding process by evaluating the shape, size and precision requirements of plastic parts. The molding process of plastic parts mainly includes the wall thickness, slope and fillet of plastic parts and whether there is a core-pulling mechanism. Through the above analysis, the parting surface, type number, gate form and placement size of the mold are determined. Among them, the most important thing is a certain type of core and structure, such as the type that still adopts the whole type, and their positioning and fastening methods. In addition, the die stress, die design, die demoulding mechanism design and matching design are also analyzed. To mechanical devices, cooling systems. Finally, draw a complete general drawing of mold assembly, the production of soil and the preparation of main mold parts types, and the process flow card of parts processing. Key words: parting line, gate, cavity, core, insert, ejection force, secondary gate. The task of this design. Design Requirements 3 Task Book 3 I. Design Theme 3 II. Project Design Requirements 4 Summary 4 Summary 5 Brief Introduction 6 Chapter 1 Plastic Part Analysis 7 Chapter 2 Plastic Part Material Forming Characteristics and Process Parameters 7 Section 1 Plastic Part Material Characteristics 8 Section 2 Molding Characteristics 8 Section 3 Process Parameters 8 Section 4 Plastic Part Structure Technicality 10 Section 5 Plastic Part's Position in the Mold 1 1 Chapter 3 Equipment Selection1/ Maximum injection quantity in the first quarter 12 Inspection of injection quantity in the second quarter 65438+ Maximum injection quantity of plastic parts and clamping force of parting surface in the third quarter 13 Inspection of injection pressure in the fourth quarter 13 Inspection of mold opening stroke in the fifth quarter 13 Inspection of injection machine 14 Chapter IV Parting surface and gating system. Kloc-0/5 Main Channel Design in the Second Section 16 Branch Channel Design in the Third Section 17 Overflow System 18 Chapter V Calculation of Working Part Size of Plastic Parts 18 Structural Design of Plastic Parts in the First Section 18 Working Size of Plastic Parts in the Second Section 1 8 Calculation of Strength and Stiffness of Plastic Parts in Section 3 24 Selection of Mould Frame Combination in Chapter 6 26 Design of Clamping Guide Mechanism in Chapter 7 27 Design of Ejection and Reset Mechanism in Chapter 8 29 Composition of Ejection Section 1 Mechanism 29 Design Principle of Ejection Mechanism in Section 2 30 Simple Ejection Mechanism in Section 3 1 Chapter 9 Design of Lateral Parting and Core-pulling Mechanism 34 Chapter 10 Design of Cooling System 4 1 Summary 4 1.