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Research and Realization of Soft Handover Output System High-speed Aseptic Brick Packaging Machine

Author: HuHaiLa
Tutor: WangShiGang
School: Shanghai Jiaotong University
Course: Mechanical Design and Theory
Keywords: Aseptic brick packaging machine high-speed output soft handover conceptual design
CLC: TS252.3
Type: Master's thesis
Year: 2010
Downloads: 18
Quote: 0
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Abstract


Pursuing of speed is the main direction of the development of aseptic brick packaging machine which has great significant in beverage package industry. In bringing high production efficiency, it also brings a series of new problems: vibration, overheating, collision and so on. Thesis mainly focus on high-speed aseptic brick’s output system, because there is a regular waste of packages caused by high impact. A series of studies are carried out to solve it, then a soft handover output system of the machine is proposed. Along this line of thought, we design innovatively with the key movement mechanisms, and more in-depth theoretical analysis are implemented. Research mainly includes:1. Main mechanical systems of high-speed aseptic brick machine are described separately by functions. It is proposed soft handover output system is a bottleneck which required to overcome high-speed. combined with the actual process. New rule of output system is designed, three coherent actions are done by synchronous soft-contact-output, synchronous transfer and arise mechanism.2. To enable smooth discharge of brick package, simultaneous soft-contact output mechanism is designed. After analysis of current mechanism with a collision model, decide to adopt a continuous, non-mutant movement curve; verify sports performance of two kinds of curve to sure they meet the requirements. Introduction of a new cylindrical cam mechanism to achieve the desired movement curve and extend the output time of package. 3. Transfer mechanism is designed to solve the problem of package fallen. Based on analytical method, the cam’s motion law and outline curve are designed. Building minimum objective function on cam’s base radius, using genetic algorithms to optimize the basic size of the cam. The completion of a synchronous transfer’s three-dimensional model, virtual assembly and kinematic model be able to carry out simulation of kinematics and dynamics on the mechanism.4. To achieve a continuous arising action, a new mechanism which is designed based on side bowing chain can be able to work effectively under low-impact. Cylindrical helix and space-based parametric cubical spline smoothing fit the kinematic needed of the system. Mathematic model is build to verify the reverse of chain, finally a theoretical minimum to reverse the length is found. Right analysis of the structure of chain plate to clarify the role of wings and obtain clearance of their exact amount.To sum up, this thesis use modern design theory and means to achieve a soft handover output system’s design and development. The mechanism be able to work fluently under high speed with low impact and good performance of body movement. It is a proper solution to bottleneck of the output phase of high-speed aseptic brick. Further improve the production efficiency of aseptic brick machine and reduce labor intensity, which have important in home-made package equipment.

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CLC: > Industrial Technology > Light industry,handicrafts > Food Industry > The dairy processing industry > Machinery and equipment
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