Koyo SH1 - 32 r2 type PLC application in the brick machine control system

Abstract: in view of the old brick making machine control system such as low efficiency and poor reliability, operation instability problem, put forward with koyo SH1 - 32 r2 type PLC to control the brick system. Illustrates the composition of PLC control system and working procedures to achieve process. Key words: PLC; Brick making machine; Old brick making machine control system usually adopts relay automatic control cabinet, there are complex structure, big volume, high failure rate, poor universality and control precision is not high, and the brick machine control system is still the manual operation, the serious influence the production efficiency and product quality of brick. According to the needs of practical production, this paper introduces a kind of brick of the koyo PLC controller control system, which can realize send board, charging, fabrics, forming, demoulding brick to the whole process of automation. 1 process unburned brick molding after mixing and stirring, gravel, sand and cement injection mold cavity, extrusion, finally out of the mold and a series of technological process of production. Specific process is as follows: skip in place, under the molding box fell to a loading and vibration and ceased to vibrate rake until the molding box filled with material, and then skip to return; Loading on the pressure head press down the end of the will die in the box at the same time of vibration compaction molding; And demoulding, chain drive send plate and molding brick fell to the bottom, then will send along plate and brick molding, brick work. 1. 2 system constitute the brick system consists of the following three parts: ( 1) Brick machine system by the frame, hopper, skip, mould box, pressure head, robots, etc. The mechanical parts of the system, driven by a motor action quickly and smoothly, in the stable production pressure, the density of the finished product evenly. （ 2) Driving system consists of six motor and an electromagnet. （ 3) Electric control system adopts PLC system. Set the manual/automatic button, manual button is mainly used in the system or software debugging, general production, adopt the automatic mode. And for each button to set the light, so that the system doesn't work properly, easy to find fault. The implementation of the 2 2 electrical control system. 1 PLC model selection according to the control requirements and the analysis of the control function, this system adopts the koyo SH32PLC controller and TP460L to achieve automatic control. All actions by PLC controller interlock control, stable and reliable running. Each execution unit trip by proximity switch test, to processing, the control of PLC, so accurate. TP460L touch-screen, friendly man-machine interface to the user to provide all of the information system running, and supports manual intervention, fault alarm, data recording and so on, the user can easily on the system operation status monitoring, setting and modifying parameters. At the same time, the system also provides perfect protection function, and emergency stop functions such as rapid, maximize the protection of personnel and equipment safety. 2 electrical schematic electrical schematic diagram is shown in figure 1. 3 I/O allocation table, PLC wiring diagram brick machine PLC control system I/O address distribution are shown in table 1. PLC control system of the external wiring diagram is shown in figure 2. 4 work flow diagram and the program design brick machine PLC control system of automatic program flow chart is shown in figure 3. Program design adopts level programming language, it is independently developed by the koyo electronics, the most suitable PLC programming language. 3 the working process of the analysis on the touch screen time, empty rake time of feeding, put down the pressure head of time delay, demoulding delay time, the aftershocks, a fast running time set. All kinds of time parameters can according to different materials ( Mainly concrete degree of dry and wet) Make appropriate adjustments. And the various parameters can be modified at the time of system operation according to the working condition. Manual brick machine system is set to the standby state ( Skip the back seat, head in the upper, mould box next) , then can the function selection switch SA twist to automatic state. Press the skip button to activate automatic feeding system. System into automatic running after all the button on the panel. Even if the workers wrong operation will not affect system, lead to misoperation brick machine, avoid the brick machine damage and unnecessary losses. Automatic process will be activated after the skip ahead to the front of the skip travel switch ( SL1) After the stop. Rake machine and mold vibration motor to run. Raw material molding box vibration can be fully filled mould box, rake feeding motor work makes each brick mold molding box can add material evenly, waiting for charging skip automatically after the time to go back, at the same time brings back excess raw materials. When skip to travel switch ( SL2) Automatically after parking at the same time put pressure head electromagnet, delay time to, to make the pressure head trip free fall; Head vibration motor, mould box vibration motor, vibration table to work at the same time; Raw materials forming in the earthquake.
In an age when plc manufacturers is increasingly important, the researchers believe manufacturers should pay close attention to their results.
Shenzhen Coolmay Technology Co., Ltd. ’s core aim is to afford high-quality products with the concept of manufacturing technology.
We should take a step back to review how Coolmay approach tracking, implementing, and communicating compliance-related changes and attempt to identify areas of improvement in their processes.