基于ARM控制的全自动单纱强力仪设计

发布时间：2018-03-06 11:49

本文选题：STM32　切入点：μC/OS　出处：《苏州大学》2012年硕士论文　论文类型：学位论文

【摘要】：单纱强力仪是测试纱线、纤维长丝等纺织材料拉伸性能技术指标的仪器,主要用于测定棉、毛、麻、化学短纤维的纯纺或混纺纱线(股线)的断裂强力、断裂伸长及断裂功。由于单根纱线的拉伸强度及其不均匀不仅影响纺织产品的质量和风格,也影响纺织后加工工艺和生产效率,因此在纺织产品生产过程前对成品纱线提出更高要求的检测。国内传统的单纱强力仪测试精度低、存储数据少、人机交互差,无法满足目前检测的要求；进口的单纱强力仪价格高,许多急需提高自身产品质量的中小企业无力购买。为满足市场需求,本课题研制了一种基于STM32空制的新型全自动单纱强力仪。课题研制的单纱测试仪器实现纱线力值和伸长率的测量,课题内容主要包括系统硬件、软件的设计与调试及整机的测试。硬件系统由控制电路、力值采集电路、动作输出电路和反馈输入电路组成。控制电路以STM32单片机为核心,对外围器件进行控制,采用可靠、高效的CAN通讯实现与上位机数据交互；力值采集电路采用高精度的张力传感器,实现对纱线力值信号的采集与模数转换;动作输出电路采用驱动板、电磁阀、交流电机、步进电机及驱动器,完成设定的换管、喂纱和强力测试等动作；反馈输入电路采用转接板、霍尔传感器、编码器,当器件运行到指定位置时会发出信号。软件系统基于μC/OS操作系统,实现换管动作、喂纱动作和强力测试等功能。硬件系统与软件系统各个模块设计完成后需要对其做相应地测试并不断调试直至满足设计要求。最后对系统进行整机测试,通过对标准纱样的测试,得到断裂强力和断裂伸长率,并与标准测纱样机的测试结果进行比较。系统的测试结果表明,该设备具有测试精度高、成本低等优点,可应用于纺织生产领域。
[Abstract]:The single yarn strength tester is a test instrument such as filament yarn, textile materials tensile performance index, mainly used for the determination of cotton, wool, linen, pure or blended yarns of chemical fiber (strands) the breaking strength, breaking elongation and fracture toughness. The single yarn strength and the uneven quality not only affects the and the style of textile products, but also affects the textile processing technology and production efficiency, therefore put forward higher requirements for detection of finished yarn in the textile production process. The single yarn strength tester to test the accuracy of traditional domestic low, less data storage, human-computer interaction is poor, unable to meet the testing requirements; the price of single yarn strength tester imported high, many need to improve their own quality of small and medium-sized enterprises to buy. In order to meet the market demand, this thesis presents a new STM32 control full automatic single yarn strength tester based on.
The measurement research of single yarn testing instrument for yarn stress and elongation, the thesis mainly includes the system hardware design and the software debugging and testing. The hardware system consists of control circuit, force value acquisition circuit, action output circuit and a feedback input circuit. The control circuit uses STM32 microcontroller as the core, peripheral devices using CAN control, reliable, efficient implementation of interactive communication and PC data; force value acquisition circuit adopts high precision tension sensor, the yarn stress value of the signal acquisition and conversion action; the output circuit adopts the drive plate, solenoid valve, AC motor, stepper motor and driver, complete set of tube the yarn strength test and action; feedback input circuit using the adapter plate, Holzer sensor, encoder, when the device moves to the specified position will be issued when the signal based on the C/ software system. OS operating system, realize the transfer tube feeding action, action and strength testing functions. The hardware system and software system of each module design need corresponding test and debugging until it meets the design requirements of the machine. Finally, test the system, based on the standard yarn sample test, get the tensile strength and elongation and, the test results were compared with the standard measuring yarn prototype.
The test results of the system show that the equipment has the advantages of high testing precision and low cost, which can be used in the field of textile production.

【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.12

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