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Moldflow and ActiveX technology - based injection mold casting the system intelligent design research

Author: ShenChunHua
Tutor: YouXiaoHong
School: Taiyuan University of Science and Technology
Course: Materials Processing Engineering
Keywords: moldflow Secondary development Injection molding Gating system Runner Shear rate
CLC: TQ320.52
Type: Master's thesis
Year: 2011
Downloads: 91
Quote: 1
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Abstract


The gating system is injection mold of the plastic melt is introduced into the cavity of the injection molding machine nozzle flow channel generally mainstream Road, shunt, composed of four parts of the gate and the cold-slug, it is an important part of the structural design of injection molds gating system design is reasonable on the structure of the plastic parts of the performance, size, internal quality, external quality and mold, and the utilization of raw materials have a greater impact. With the development of computer technology, CAE technology plays an increasingly important role in industrial production. Many famous CAE software provides a secondary development platform to the finite element software can play a greater role. Moldflow is the famous plastic mold flow analysis software, based on moldflow and ActiveX technology, moldflow secondary development, design of injection mold gating system intelligent design system. The system consists of four independent subsystems: (1) intelligent selection of the gate type system. The system is based on the plastic parts shape, the technical requirements of the plastic parts, plastic parts, material type and cavity number, conduct a comprehensive analysis to draw a group can use the gate and the gate of a set of recommended type for the user to choose. (2) gate location intelligent selection system. Gate type is selected, according to the wall thickness and quality requirements, combined with the weld marks, warpage, filling the balance, the pressure loss at different gate locations and exhaust situation and other factors in the finite element simulation results, by means of sample The interpolation method can be drawn from the best gate location. (3) gate size intelligent design system. After determining of the location of the gate and gate type, the consolidated part thickness, the size of the shear rate and filling stability requirements, can be drawn to a reasonable range gate size, and gives the gate size and the gate cooling time, the gate, the pressure loss curve. The user can choose the best gate size based on the actual production process parameters. (4) the runner system intelligent design system. A reasonable cross-sectional size of the shunt is given according to the type of plastic and shear rate conditions; combination selected injection molding machine can be drawn from the sprue diameter to meet shear rate conditions. Gating system design is complete, the system will gating system design, verification, and checking the results is given under actual production conditions to determine whether it is satisfied with the design of gating system, if not satisfied with the user can re-set the corresponding parameters of gating system redesign. By an instance of the system authentication, prove that the system is feasible, and the high degree of agreement with the actual production. Development of intelligent gating system can further improve the efficiency of gating system design, a test mode success rate, shorten the cycle of mold design and manufacturing; reduce the dependence of the gating system design experience, less experienced designers can design more reasonable gating system.

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CLC: > Industrial Technology > Chemical Industry > Synthetic resins and plastics industry > General issues > Machinery and equipment > Products processing molding equipment
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