1600KN热压成型机液压系统

摘 要

1600KN热压成型机液压系统主要包括动作循环控制和温度控制两方面内容。动作循环完成各液压升降，手动自动，计数计时等工作，一般采用PLC控制。温度控制由温控表或利用PLC的A/D完成，测温通常采用模拟量，控制输出采用低成本的开关通断方式。此次课题包括热压成型机的设计和电气控制系统的设计，热压成型机的设计包括主回路和加热部分的设计、控制回路的设计；电气部分包括控制面板的设计、触摸屏的设计、PLC梯形图等。

此次课题选择多电机拖动，多电机拖动指一台设备有多台电动机分别驱动各个工作机构。热压成型机的设计中，主电机M1通过轴流风机M2实现动作主机滑块的快速上升。主机的电阻丝采用星型接法，用于加热功能。星三角启动应用于正常运行时为角接的电机启动中，可以起到降低绕组电压和启动电流的作用，减小对电网的冲击。同时由于启动转矩比较小，所以可以保护电机等等的机械轴承。

为了装置的小型化，模块规格的高设计自由度,此次设计选择了松下的FP2。通过梯形图的设计，控制输入端子X、输出端子Y和内部继电器R，实现课题所要求的动作循环。如：通过自锁、互锁等程序完成热压成型机电气控制系统的自动控制和手动控制。通过设定梯形图中的时间继电器来实现保压时间。

关键词：热压成型机 电气控制系统 动作循环

ABSTRACT

1600KN hot molding machine hydraulic system includes motion cycle control and temperature control two aspects. Action to complete the cycle of hydraulic lift, manual and automatic, counting time, etc., the general use of PLC control. Temperature control is provided by temperature-controlled table, or the use of PLC, A / D complete, temperature is usually analog volume control the output of low-cost switch-off mode. The topics include the design of hot-press molding machine and electrical control system design, hot press molding machine, the design includes the main circuit and heating part of the design, control loop design; electrical parts including control panel design, touch screen design, PLC ladder and so on.

The subject of multi-motor drag selection, multi-motor drag refers to a piece of equipment more than one electric motor driving the various working bodies, respectively. Hot forming machine design, main motor M1 through M2 axial fan slider to achieve the rapid increase in the host moves. Host resistance wire with a star-connection for the heating. Star delta starter angle when used in normal operation of the motor then started, you can reduce the winding voltage and start to play the role of current and reduce the impact on the grid. Same time, because starting torque is relatively small, so it can protect the motor, and so the mechanical bearings.

In order to device miniaturization, the module specifications of high design freedom, the design options of the Panasonic FP2. Through the ladder design, control input terminal X, the output terminal Y and the internal relay R, to achieve the required action cycle of the subject. Such as: by self-locking, interlocking and other procedures are completed hot molding machine electrical control system of automatic control and manual control. By setting the time relay ladder to achieve the holding pressure time.

Key words Hot molding machine Electrical control system Action cycle

目 录

第一章 绪论 ....................................................... 1

1.1此次课题研究的目的和意义..................................... 1

1.2热压成型机及电气控制发展现状................................. 1

1.3本课题的主要任务............................................. 3

第二章 电气设计的一般原则 ......................................... 4

2.1机床电气设计................................................. 4

2.1.1基本要求 ............................................... 4

2.1.2基本内容 ............................................... 4

2.1.3技术条件 ............................................... 4

2.2电气传动形式的确定........................................... 5

2.2.1传动形式 ............................................... 5

2.2.2调速性能设定 ........................................... 5

2.2.3负载特性的选择 ......................................... 5

2.2.4启动、保压、制动和反向设计 ............................. 6

2.2.5结构要求及选择 ......................................... 6

2.2.6控制方案的确定 ......................................... 6

2.3电气控制线路设计............................................. 7

2.3.1遵循的原则 ............................................. 7

2.3.2基本步骤 ............................................... 7

第三章 控制系统设计 ............................................... 9

3.1主回路及加热部分............................................. 9

3.2主电路....................................................... 9

3.3电器布置图的绘制............................................ 10

3.3.1电器布置原则 .......................................... 10

3.3.2配线方式 .............................................. 11

3.3.3其它电器元件的选择 .................................... 11

3.4PLC的选择................................................... 13

3.5端子图...................................................... 15

第四章 控制程序 .................................................. 16

4.1控制程序.................................................... 16