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毕业设计（论文）
题目名称：涂附磨具揉曲控制系统的设计
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涂附磨具揉曲控制系统的设计
The design of coated abrasive
flexibleness control system
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I
摘要
涂附磨具通过机械性的揉曲，才能满足使用的柔韧性要求。长达几十米到上百米的涂附磨具在揉曲过程中，必须保证涂附磨具在各个揉曲驱动辊上的传送速度相同，才能满足涂附磨具在揉曲过程中张力平衡的要求，否则就会造成涂附磨具的松弛、堆积或者拉紧、绷断，使揉曲工作不能继续运行。这就要求驱动3个揉曲驱动辊的3台变频电机和驱动一个收卷盘的1台力矩电机线速度相同，即3台变频电机和1台力矩电机要同步运行。本文介绍了使用同步控制器SCD控制3个变频器和1个力矩电机控制器，然后变频器和力矩电机控制器再去控制3台变频电机和1台力矩电机，用张力传感器的输出信号作为SCD的反馈信号。这样，就形成了一个闭环的控制系统，解决了3台变频电机和1台力矩电机的同步控制问题，保证了揉曲过程的平滑。最后，使用1台PLC协调整个系统工作，这样，就形成了一个高自动化、高稳定性、高精度的涂附磨具揉曲机控制系统，从而保证了涂附磨具揉曲机的工作质量，生产出更好的涂附磨具成品。
关键词：变频电机，力矩电机，同步控制器，变频器，PLC
II
Abstract
In order to achieve the required flexibility of the coated abrasive, the work is
machinery roll flexing . When the coated abrasive tool that up to tens of meters to 100
meters is flexed , must ensure the speed of coated abrasive that on the each drive roller
keep same . So , the tension of coated abrasive will keep balance. If not , the coated
abrasive will be loose and accumulated or be breaking that lead to the roll flexing stop .
This requires the tension of the 3 inverter motors which drive the 3 flexing roll and 1
torque motor which drive the rolling plate keep same . In fact , the purpose is ensure the 3
inverter motors and the 1 torque motor work synchronously . This paper introduces the
SCD synchronous controller control the 3 Inverter ,and then go to control the 3 inverter
motors and 1 torque motor, with the tension sensor output signal as the feedback signal to
SCD . Thus , it become a closed loop control system which solve the control problem of
the 3 inverter motors and the 1 torque motor and ensure the smooth of roll flexing. Finally ,
use 1 PLC coordinate the whole system . So , the result is one high automated , high
stability , high accuracy coated abrasive flexing machine control system be completed , it
ensure the quality of coated abrasive flexing machine . So , it can produce more better
coated abrasive tool .
Key words : inverter motor , torque motor , synchronous controller , inverter , PLC
III
目录
1 引言 ...................................................................................................................................................... 1
2 系统设计方案及原理 ......................................................................................................................... 2
2.1 揉曲方案 ................................................................................................................................. 2
2.2 控制方案 ................................................................................................................................. 2
2.3 系统基本原理 ........................................................................................................................ 4
2.4 控制要求 ................................................................................................................................. 4
2.5 控制系统组成 ........................................................................................................................ 5
3 硬件 ...................................................................................................................................................... 6
3.1 同步控制器............................................................................................................................. 6
3.1.1 同步控制器的选型 ................................................................................................... 6
3.1.2 同步控制器系统说明 ............................................................................................... 8
3.1.3 同步控制器外部端子说明 ..................................................................................... 10
3.2 三相交流异步变频电机 ...................................................................................................... 11
3.2.1 概述 .......................................................................................................................... 11
3.2.2变频电机的选型 ...................................................................................................... 11
3.2.3变频电机的使用 ...................................................................................................... 13
3.3力矩电机 ............................................................................................................................... 13
3.3.1概述 ........................................................................................................................... 13
3.3.2 力矩电机的选型 ..................................................................................................... 14
