Development and performance evaluation of a low-cost custom-made vertical injection molding machine

2014 ◽  
Vol 37 (1) ◽  
pp. 79-86 ◽  
Author(s):  
M. Azuddin ◽  
I. A. Choudhury ◽  
Z. Taha
Keyword(s):  
Performance Evaluation ◽  
Injection Molding ◽  
Low Cost ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Custom Made ◽  
Vertical Injection ◽  
And Performance

Micro Plastic Part Fabrication Using Custom Made Vertical Injection Molding Machine

2011 ◽  
Vol 197-198 ◽  
pp. 1337-1345 ◽  
Author(s):  
M. Azuddin ◽  
Z. Taha ◽  
Imtiaz Ahmed Choudhury
Keyword(s):  
Injection Molding ◽  
Electrical Discharge Machining ◽  
Molding Machine ◽  
Plastic Part ◽  
Injection Molding Machine ◽  
Behavior Observation ◽  
Custom Made ◽  
Vertical Injection ◽  
Mechanical Machining ◽  
Selection Of

This study focuses on fabrication of a micro plastic part using custom made vertical injection molding machine. Electrical discharge machining (EDM) and micro mechanical machining was used to fabricate micro shape cavity on aluminum mold. The mold was embedded with Polymethyl Methacrylate (PMMA) window to observe the behavior of plastic melt flow during injection. The custom made vertical injection molding machine has capabilities to produce a micro plastic part. But, the filling behavior observation was contrast with MoldFlow analysis software. The flashing problem occurs at each molded micro part due to improper selection of injection molding parameter.

Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine

2016 ◽  
Vol 36 (8) ◽  
pp. 861-866 ◽  
Author(s):  
Quan Wang ◽  
Zhenghuan Wu
Keyword(s):  
Injection Molding ◽  
Processing Parameters ◽  
Axial Vibration ◽  
Filling Process ◽  
Molding Machine ◽  
Lumped Mass ◽  
Injection Molding Machine ◽  
Injection Speed ◽  
And Performance ◽  
Injection Screw

Abstract This paper presents a study of the characteristics of axial vibration of a screw in the filling process for a novel dynamic injection molding machine. By simplifying a generalized model of the injection screw, physical and mathematic models are established to describe the dynamic response of the axial vibration of a screw using the method of lumped-mass. The damping coefficient of the screw is calculated in the dynamic filling process. The amplitude-frequency characteristics are analyzed by the simulation and experimental test of polypropylene. The results show that the amplitude of a dynamic injection molding machine is not only is related to structure parameters of the screw and performance of the material, such as non-Newtonian index, but also depends on the processing parameters, such as vibration intensity and injection speed.

Design of a Multi Microinjection Molding Module for Thermoplastic Polymer

2012 ◽  
Vol 501 ◽  
pp. 162-167 ◽  
Author(s):  
Pan Pan Zhang ◽  
Jian Wang ◽  
Peng Cheng Xie ◽  
Li Lei Miao ◽  
Wei Min Yang
Keyword(s):  
Injection Molding ◽  
Initial Pressure ◽  
Planetary Gear ◽  
Gear Pump ◽  
Thermoplastic Polymer ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Microinjection Molding ◽  
Vertical Injection

A new concept of microinjection molding module was designed and presented. The module was designed as a multi microinjection module, which is matched with a vertical injection molding machine (IMM) and can be applied to usual IMMs. A planetary gear pump was integrated in this module to complete the multi microinjection molding(MμIMM)。The module is fixed between the stationary platen and the mold of IMM. The plasticizing unit of the IMM provides the melt and initial pressure for the multi microinjection molding module. With this module, a usual IMM could be upgraded to a precise microinjection machine and has the capability of precise metering for the microinjection molding.

Melt Behavior Simulation on the Planetary Gear Pump Used for Polymer Differential Injection Molding (DIM)

2013 ◽  
Vol 561 ◽  
pp. 228-233
Author(s):  
Pan Pan Zhang ◽  
Peng Cheng Xie ◽  
Li Lei Miao ◽  
Xiao Hua Wang ◽  
Wei Min Yang
Keyword(s):  
Injection Molding ◽  
Planetary Gear ◽  
Gear Pump ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Injection Volume ◽  
Behavior Simulation ◽  
Software Packages ◽  
Vertical Injection ◽  
Behavior Characteristics

A planetary gear pump (PGP) was introduced to the differential injection molding. The system is matched with a vertical injection molding machine (IMM). The PGP is integrated in the stationary mold and is fixed between the stationary platen and the movable mold of IMM. The dynamic mesh technology in the software packages Fluent was applied to investigate the melt behavior. Characteristics of the PGP, such as pressure and injection volume, used for the DIM process were studied

Design of Open Motion Control System in Fully Electrical Plastic Injection Molding Machine

2011 ◽  
Vol 291-294 ◽  
pp. 2767-2770
Author(s):  
Hang Wei Zhang
Keyword(s):  
Control System ◽  
Injection Molding ◽  
Low Cost ◽  
Plastic Injection Molding ◽  
Motion Controller ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
High Efficient ◽  
Efficient Control ◽  
Plastic Injection

This paper intends to configure a control system of the plastic injection molding machine using a Motion Controller. It narrates the wiring methods of the control system based on “PC + Motion Controller” architecture. Furthermore, it divides some functions by the language of C++ Builder. This work aims to produce a low cost and high efficient control system which has good expansibility and transplantation.

Development of Basalt Filament Highway Guardrail

2012 ◽  
Vol 627 ◽  
pp. 678-681
Author(s):  
Jiao Huang ◽  
Zhi Li Zhong ◽  
Hua Wu Liu ◽  
Jin Wu Lu
Keyword(s):  
Corrosion Resistance ◽  
Injection Molding ◽  
Low Cost ◽  
Basalt Fiber ◽  
High Strength ◽  
Acrylic Resin ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Excellent Corrosion Resistance ◽  
Composite Mechanics

In order to reduce vehicle crash on highway, basalt fiber reinforced guardrail was developed in this study. The wave shaped framework was coated with thermoplastic acrylic resin, using injection molding machine. Tensile strengths of the samples were tested by a 3380Instron and the corresponding property of the composite was calculated on the basis of the composite mechanics. The results indicated that the basalt filament reinforced highway guardrail have the advantages of high strength, excellent corrosion resistance, relative low cost and so on.

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