合成革生产线自动涂台系统设计
发布时间：2018-08-16 18:26
【摘要】：近年来,合成革行业迅速发展,我国已经成为世界上合成革第一消费大国、生产大国以及进出口贸易大国。在合成革生产过程的涂台环节中,主要依靠人工实现离型纸接头的抬刀控制和合成革浆料的上浆工作。不仅劳动强度大,而且浆料散发的有毒气体还会严重危害人体健康,造成环境污染。本文在对现有涂台操作工艺与机构原理深入分析的基础上,设计了一套合成革生产线自动涂台系统,可以方便地对现有涂台进行改造,完成涂台的自动化操作,从而实现涂台过程的全自动化、密封生产,有效的解决环境污染问题。本论文的主要研究内容如下:(1)系统的整体构架设计分析了旧式涂台的系统结构原理与操作流程,指出了当前系统中存在的不足与需要改进的地方,从而提出了将自动涂台系统分为自动抬刀系统和自动上浆系统两个子系统的总体设计方案,并分别阐述了这两个系统技术设计路线。(2)自动抬刀系统设计分析了基于视觉图像的接头检测基本原理,设计了基于视觉检测的抬刀控制系统整体方案。通过对涂台现场工艺与机械传动结构的分析,研究了离型纸速度检测的解决方案,研究了视觉图像传感器、离型纸速度、抬刀时间与位置等参数实现协调控制的原理与算法。最后设计了一套自动与手动相兼容的自动抬刀控制系统,完成了系统的硬件设计与软件算法程序,实现了抬刀位置的精确控制。(3)自动上浆系统设计首先结合系统的功能需求分析提出了以“料桶倾倒方式”倒料的设计方案;然后分别对系统的机械结构和电气控制模块进行了详细的分析与设计,其中系统的机械结构部分包括上浆机械装置和刮浆机械装置的设计,系统的电气控制部分包括数据采集模块、输出控制模块以及控制器的设计;最后建立了料槽液位的控制对象模型,并鉴于PID控制算法的局限性提出了以顺序控制方法为主的料槽液位控制算法,从而实现了料槽液位的稳定控制。(4)现场调试与验证在丽水某合成革生产企业对本论文所设计和研发的系统进行了安装调试与验证。试验运行结果表明,抬刀系统的接头检测效果良好,识别率可以达到100%,抬刀、落刀动作得到了精确的控制;上浆系统中的料槽液位高度可以长期维持在稳定状态;整个自动涂台系统的性能稳定、实用性强、操作简单、封闭性能良好、完全满足生产工艺要求。
[Abstract]:With the rapid development of synthetic leather industry in recent years, China has become the world's largest consumer of synthetic leather, a large country of production and import and export trade. In the stage of synthetic leather production, it mainly depends on manual control of lifting knife and sizing of synthetic leather paste. Not only the intensity of labor, but also the toxic gas emitted by slurry will seriously endanger human health and cause environmental pollution. Based on the deep analysis of the operation technology and mechanism of the existing coating platform, a set of automatic coating platform system for synthetic leather production line is designed in this paper, which can conveniently transform the existing coating platform and complete the automatic operation of the coating platform. In order to achieve the full automation of the painting process, seal production, effectively solve the environmental pollution problem. The main contents of this thesis are as follows: (1) the system structure principle and operation flow of the old painting platform are designed and analyzed, and the shortcomings of the current system are pointed out. Thus, the overall design scheme of automatic painting platform system is put forward, which is divided into two subsystems: automatic lifting tool system and automatic sizing system. The two systems are described respectively. (2) the automatic tool lifting system is designed and analyzed the basic principle of joint detection based on visual image and the overall scheme of lifting tool control system based on visual detection is designed. Based on the analysis of the field technology and mechanical transmission structure of the coating platform, the solution of the speed detection of the release paper is studied, and the principle and algorithm of the coordinated control of the parameters such as the visual image sensor, the speed of the release paper, the time and the position of the lifting cutter are studied. Finally, a set of automatic lifting tool control system is designed, which is compatible with manual control system. The hardware design and software algorithm program of the system are completed. The accurate control of the position of the lifting cutter is realized. (3) the design of the automatic sizing system is first put forward with the analysis of the functional requirements of the system. Then the mechanical structure and electrical control module of the system are analyzed and designed in detail. The mechanical structure of the system includes the design of sizing mechanism and scraping mechanism. The electrical control part of the system includes data acquisition module, output control module and controller design. In view of the limitation of PID control algorithm, this paper puts forward the control algorithm of feed tank liquid level, which is mainly based on sequential control method. Thus the stable control of the liquid level in the feed tank is realized. (4) the system designed and developed in this paper is installed and tested in a synthetic leather production enterprise in Lishui. The test results show that the joint detection effect of the lifting system is good, the recognition rate can be up to 100, the lifting and dropping of the knife can be controlled accurately, and the height of the liquid level of the feed slot in the sizing system can be maintained in a stable state for a long time. The system has the advantages of stable performance, strong practicability, simple operation and good sealing performance.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP278
本文编号：2186811
[Abstract]:With the rapid development of synthetic leather industry in recent years, China has become the world's largest consumer of synthetic leather, a large country of production and import and export trade. In the stage of synthetic leather production, it mainly depends on manual control of lifting knife and sizing of synthetic leather paste. Not only the intensity of labor, but also the toxic gas emitted by slurry will seriously endanger human health and cause environmental pollution. Based on the deep analysis of the operation technology and mechanism of the existing coating platform, a set of automatic coating platform system for synthetic leather production line is designed in this paper, which can conveniently transform the existing coating platform and complete the automatic operation of the coating platform. In order to achieve the full automation of the painting process, seal production, effectively solve the environmental pollution problem. The main contents of this thesis are as follows: (1) the system structure principle and operation flow of the old painting platform are designed and analyzed, and the shortcomings of the current system are pointed out. Thus, the overall design scheme of automatic painting platform system is put forward, which is divided into two subsystems: automatic lifting tool system and automatic sizing system. The two systems are described respectively. (2) the automatic tool lifting system is designed and analyzed the basic principle of joint detection based on visual image and the overall scheme of lifting tool control system based on visual detection is designed. Based on the analysis of the field technology and mechanical transmission structure of the coating platform, the solution of the speed detection of the release paper is studied, and the principle and algorithm of the coordinated control of the parameters such as the visual image sensor, the speed of the release paper, the time and the position of the lifting cutter are studied. Finally, a set of automatic lifting tool control system is designed, which is compatible with manual control system. The hardware design and software algorithm program of the system are completed. The accurate control of the position of the lifting cutter is realized. (3) the design of the automatic sizing system is first put forward with the analysis of the functional requirements of the system. Then the mechanical structure and electrical control module of the system are analyzed and designed in detail. The mechanical structure of the system includes the design of sizing mechanism and scraping mechanism. The electrical control part of the system includes data acquisition module, output control module and controller design. In view of the limitation of PID control algorithm, this paper puts forward the control algorithm of feed tank liquid level, which is mainly based on sequential control method. Thus the stable control of the liquid level in the feed tank is realized. (4) the system designed and developed in this paper is installed and tested in a synthetic leather production enterprise in Lishui. The test results show that the joint detection effect of the lifting system is good, the recognition rate can be up to 100, the lifting and dropping of the knife can be controlled accurately, and the height of the liquid level of the feed slot in the sizing system can be maintained in a stable state for a long time. The system has the advantages of stable performance, strong practicability, simple operation and good sealing performance.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP278
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