基于异形热成型包装件的分切技术研究

发布时间：2018-03-06 06:02

本文选题：异形包装件　切入点：热成型　出处：《江南大学》2017年硕士论文　论文类型：学位论文

【摘要】：全自动真空热成型包装机是近年来开发的,应用广泛的一种多功能多用途包装机型。在一个包装机上集多个工位于一体,机器性能强、生产效率高、适应性广,成型后容器的形状各异,可广泛用于各种食品及非食品类的包装领域,但目前针对影响包装件最终外观质量的分切工序研究较少,尤其针对异形包装件。本文旨在对异形包装件分切技术和分切装置进行研究,对影响异形包装件分切的工艺参数进行理论分析,同时提出一种新型裁切方式—仿形裁切,用来改善产品的外观质量并提高分切效率。主要研究内容包括:(1)研究背景、目的及意义。主要调研了全自动真空热成型包装机的发展现状和热成型包装机现有分切技术和热成型包装机分切装置存在问题,明确课题研究意义与重要性,确定了课题研究的主要技术和研究方法,为课题开展提供了理论基础和参考依据。(2)异形件分切工艺原理与技术方案的研究。对热成型包装件的产品特征和材料特性进行详细分析;并根据热成型包装件的分切特点,确定了异形包装件横切和纵切工艺方案和装置,确定了异形件冲切的技术原理和工艺方案,创新性提出仿形裁切的新型分切方法,确定了仿形裁切的工艺方案和工艺流程;最后根据生产实际状况确定包装件分切的工艺要求和质量要求,在此基础上进行下一步装置设计。(3)异形件冲切装置设计与影响因素分析。完成异形包装件冲切装置的设计,对影响冲切质量的工艺参数进行分析。完成了冲切刀片、冲切刀模板、冲切辅助装置以及冲切整体装置设计;对冲切主要参数冲切压力进行了计算,确定了冲切所需的增压气缸;对冲切装置相关因素冲切速度、材料本身性能、胶合板质量对冲切质量的影响进行了简要分析。在此基础上,针对宽幅多模腔型的热成型包装机,设计了相应的输送装置,完成了宽幅多模腔热成型包装机的冲切装置设计。(4)异形件裁切机构选型与装置设计。根据异形包装件的仿形裁切工艺方案中执行机构的动作要求,对仿形裁切执行机构进行机构选型,完成了夹紧机构、仿形机构、定位转角机构的设计。对夹紧机构进行参数化设计和运动分析,对仿形机构进行合理化验证,运动分析和优化设计;确定仿形裁切时间,绘制工作循环图,估算生产效率。(5)整体模型设计。基于Solidworks三维设计软件平台,对异形包装件单组固定冲切装置、宽幅多模腔高效冲切装置、仿形裁切装置创建三维模型,并组装配合成整机模型,用来检验整体装置的合理性。
[Abstract]:Automatic vacuum thermoforming packaging machine has been developed in recent years. It is widely used in multi-function and multi-purpose packaging machine. It has the advantages of strong performance, high production efficiency and wide adaptability. The shapes of the formed containers vary, and they can be widely used in various food and non-food packaging fields. However, at present, there is little research on the cutting process that affects the final appearance quality of the packaging. The purpose of this paper is to study the cutting technology and the cutting device of the special-shaped packaging, to analyze the technological parameters affecting the cutting of the special-shaped packaging, and to put forward a new type of cutting method-copying cutting. It is used to improve the appearance quality of the product and to improve the cutting efficiency. Objective and significance. This paper mainly investigates the development of automatic vacuum thermoforming packaging machine, the existing cutting technology of thermal forming packaging machine and the problems existing in the cutting device of thermal forming packaging machine, and clarifies the significance and importance of the subject research. The main techniques and methods of the research have been determined. This paper provides the theoretical basis and reference basis for the research of the cutting process principle and technical scheme of the special-shaped parts. The product and material characteristics of the thermoforming packaging are analyzed in detail, and according to the cutting characteristics of the thermoforming packaging, The technology scheme and device for cross and longitudinal cutting of special-shaped packaging are determined, the technical principle and technological scheme of blanking of special-shaped parts are determined, the new cutting method of copying cutting is innovatively put forward, and the technological scheme and technological process of copying cutting are determined. Finally, according to the actual conditions of production, the technological requirements and quality requirements of the cutting of packing parts are determined. On this basis, the design of the blanking device for the special-shaped parts and the analysis of the influencing factors are carried out, and the design of the punching and cutting device for the special-shaped packaging parts is completed. The process parameters affecting the quality of punching are analyzed. The design of blanking blade, blanking tool template, punching auxiliary device and blanking integral device is completed, and the blanking pressure of the main parameters of blanking is calculated. The effects of pressing speed, material properties, plywood quality and cutting quality on the pressure cylinder needed for punching and cutting are briefly analyzed. Based on this, the thermoforming packaging machine with wide width and multi-die cavity is used to determine the effect of punching speed, material properties and plywood quality. The corresponding conveying device is designed, and the punching device design of the wide width multi-die cavity thermoforming packaging machine is completed. The cutting mechanism selection and device design of the special-shaped parts are completed. According to the action requirements of the actuator in the profiled cutting process of the special-shaped packaging, The design of clamping mechanism, copying mechanism and positioning angle mechanism are completed. The parametric design and kinematic analysis of clamping mechanism are carried out, and the rational verification of copying mechanism is carried out. Kinematic analysis and optimization design; determining copying cutting time, drawing working cycle diagram, estimating production efficiency. Whole model design. Based on Solidworks 3D design software platform, single set of fixed punching device for special-shaped package, In order to test the rationality of the whole device, the high efficiency punching and cutting device with wide width multimode cavity and the copying cutting device are used to create 3D model and assemble the whole machine model to verify the rationality of the whole device.
【学位授予单位】：江南大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB48

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