Multi-Objective Optimization Design for Double Toggle Clamping Unit of Injection Molding Machine

2012 ◽  
Vol 201-202 ◽  
pp. 15-19
Author(s):  
Chen Jian Lei ◽  
Jun He Yu ◽  
Hong Fei Zhan ◽  
Lei Chen ◽  
Zhong Ren Jiang
Keyword(s):  
Injection Molding ◽  
Optimization Design ◽  
Optimization Method ◽  
Productive Efficiency ◽  
Molding Machine ◽  
Original Design ◽  
Injection Molding Machine ◽  
Amplification Ratio ◽  
Better Than

Clamping unit is an important component of injection molding machine. The clamping force and the clamping speed of clamping unit not only effect on the quality of molding products, but also determine the cyclic number. The large force amplification and large stroke ratio can reduce energy consumption and improve the productive efficiency. In this article, force amplification ratio and stroke ratio were used as the optimization goals. Non-dominated sorting genetic algorithm was used as the optimization method. The optimization result was better than the original design. So this article provides a reference for the same or similar product’s optimization.

Finite Element Analysis and Topology Optimization Design for Motional Board of Injection Molding Machine

2014 ◽  
Vol 607 ◽  
pp. 573-576
Author(s):  
En Guang Zhang ◽  
Li Wang ◽  
Wen Ju Shan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Injection Molding ◽  
Optimization Design ◽  
Structure Design ◽  
Molding Machine ◽  
Element Analysis ◽  
Injection Molding Machine ◽  
Load Carrying

The structure and the load-carrying capability of the front board of injection molding machine are more complex. The error of the approximation algorithm employed in engineering is larger so that the board may become invalid in the process of using, The finite element analysis can obtain the stress distribution in the parts so as to improve the accuracy of calculation and the quality of design; through The topology optimization analysis will take the initiative to find the optimal plan, which provides the theoretical basis for the improvement of the load-carrying capability and the structure design of board. This paper have conducted a parametric design, finite element analysis and the topology optimization design for a motional board of the injection molding machine using “Advanced simulation” of NX8.0, and get a quantitative conclusion of that the motional board volume is reduced and its stiffness is significantly enhanced.

Sucking Machinery of Transport for Dosing Granulations of Plastics at Injection Molding

2011 ◽  
Vol 383-390 ◽  
pp. 2813-2818 ◽  
Author(s):  
Emil Ragan ◽  
Petr Baron ◽  
Jozef Dobránsky
Keyword(s):  
Injection Molding ◽  
Rapid Development ◽  
Processing Method ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Plastic Materials ◽  
Plastics Processing ◽  
Pneumatic Method ◽  
Time Injection

Advantageous properties of plastic materials, low investment costs for a production, cheap and productive processing method were given the rapid development of plastic materials. In this time injection molding technology is the most using technology for processing plastics in our country. Quality of the plastics processing depends mainly on the quality of material and preparing it for production. The first step in the processing of plastic by injection molding is dosing of granulations from hopper of injection machine unit. Task of this contribution is to theoretically describe a pneumatic method for transport of granulations in injection molding machine.

3113 A Hierarchical Optimization Method for Injection-molding Machine Design

2005 ◽  
Vol 2005.15 (0) ◽  
pp. 460-461
Author(s):  
Masahiko Taniguchi ◽  
Shinji Nishiwaki ◽  
Kazuhiro Izui ◽  
Masataka Yoshimura
Keyword(s):  
Injection Molding ◽  
Optimization Method ◽  
Machine Design ◽  
Hierarchical Optimization ◽  
Molding Machine ◽  
Injection Molding Machine

Finite Element Analysis and Topology Optimization Design for Front Platen of Injection Molding Machine

2013 ◽  
Vol 365-366 ◽  
pp. 42-46
Author(s):  
En Guang Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Topology Optimization ◽  
Injection Molding ◽  
Optimization Design ◽  
Parametric Design ◽  
Molding Machine ◽  
Element Analysis ◽  
Injection Molding Machine ◽  
Maximum Deformation

The weight of platens accounts for about 70% of the entire clamping device of injection molding machine. The reduction in the weight of platen means the reduction in the cost of injection molding machine. UG NX8.0 was adopted to conduct the parametric design, and UG NX8.0 Advanced Simulation module was adopted to conduct the finite element analysis and the topology optimization design for the front platen of injection molding machine so as to obtain the quantitative conclusions that the volume of platen is reduced and the stiffness as well as the strength is improved. The maximum deformation of platen is decreased by 6.2%, the volume is decreased by 6%, the maximum stress is decreased by 6.6% and the average displacement of all the nodes in the mold mounting plane is decreased by 9.1%. The effect of optimization is obvious.

scholarly journals Optimal design on Watt-chain double-toggle mold clamping mechanism for injection molding machine

2021 ◽  
Vol 104 (3_suppl) ◽  
pp. 003685042110414
Author(s):  
Long-Chang Hsieh ◽  
Tzu-Hsia Chen ◽  
Po-Cheng Lai ◽  
Sheng-wen Zheng
Keyword(s):  
Optimal Design ◽  
Injection Molding ◽  
Design Process ◽  
Plastic Injection Molding ◽  
Molding Machine ◽  
Maximum Acceleration ◽  
Injection Molding Machine ◽  
Force Ratio ◽  
Plastic Injection ◽  
Better Than

Introduction The mode clamping mechanism is the most important part of forming section for the plastic injection molding machine. If this mechanism has double-toggle effects at the close position, it will get a larger clamping force and have higher safety. This study focuses on the optimal design of the Watt-chain mechanism with double-toggle effects at the close position. Methods The Watt-chain double-toggle mechanism is chosen to be the mold clamping mechanism by referring to the existing patents. Then, the kinematic characteristics of the Watt-chain double-toggle mechanism are analyzed by the vector loop method. Finally, based on the kinematic requirements and the proposed optimal design process according to the objective function, the optimal design on Watt-chain double-toggle mechanism is accomplished in this study. Results This study proposes an optimal design process on Watt-chain double-toggle mold clamping mechanism. By following the optimal design process, the optimal Watt-chain double-toggle mold clamping mechanism has a maximum acceleration 3418 mm/s2 ( amax = 3418 mm/s2) and a force ratio is 2.24 ( Fin/ Fout = 2.24). Discussion According to the studies on the optimal designs of mechanisms, the optimal Watt-chain double-toggle mechanism, which is better than the multiple-joint double-toggle mold clamping mechanism in the existing patent by reducing 19.5% of acceleration and 30% of a driving force, is proposed. The results of this study could be the design reference in engineering when designing mold clamping mechanisms for plastic injection molding machines.

Choice and Exchange of Lubricating Oil for Injection Molding Machine

2019 ◽  
Vol 12 (4) ◽  
pp. 378-382
Author(s):  
Shan Syedhidayat ◽  
Quan Wang ◽  
Al-Hadad M.A.A. Mohsen ◽  
Jinrong Wang
Keyword(s):  
Injection Molding ◽  
Dimensional Accuracy ◽  
Low Noise ◽  
Working Environment ◽  
Lubricating Oil ◽  
Lubrication System ◽  
Molding Machine ◽  
Oil And Grease ◽  
Injection Molding Machine ◽  
The Stability

Background: One of the most common manufacturing equipment for polymer product is injection molding machine. In order to ensure the precise, stable and continuous operation of the injection molding machine, the maintenance of the lubrication system must be done well. The stability, reliability, rationality and low noise performance of the lubrication system of injection molding machine directly affect the quality of injection products, dimensional accuracy, molding cycle, working environment and maintenance. Objective: The purpose of this study is to introduce the methods of choice, maintenance of lubricating oil for injection molding machine from many literatures and patents in the recent years, such as lubricating oil device, lubricating composite and structure. Methods: An example of the 260M5 automatic injection molding machine is introduced for the inspection and maintenance of the lubrication system including lubricating oil and lubricating grease. Results: To ensure the lubrication of the injection molding machine, it needs to strictly observe the lubrication time and modulus of the injection molding machine. It needs to strictly control the temperature rise of the lubricating oil and select the correct lubricating oil and grease to ensure the lubrication quality. Conclusion: In the operation of the injection molding machine, it is necessary to check that the lubricating oil is sufficient and the lubricating points are working properly. It ensures sufficient lubrication of the injection molding machine and strictly observes the lubrication time and modulus of the injection molding machine. The stored lubricating oil should be sealed well to prevent air pollution.

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