婷婷欧美综合丨青草影院内射中出高潮-百度丨日韩精品久久一区二区丨欧美黄色网丨小说区 综合区 首页丨特黄一毛二片一毛片丨中文字幕第一页久久丨久久久久人妻一区精品果冻丨日韩av资源网丨日韩av无码一区二区三区不卡毛片丨情趣内衣a∨片在线观看丨久久亚洲国产成人精品性色丨日本十八禁视频无遮挡丨www超碰久久com丨黄色一级二级丨亚洲一区二区三区影视丨一区久久丨久久久久久久波多野结衣高潮丨欧美aaa大片丨国产精品自在拍在线播放丨亚洲国产良家在线观看丨日韩美女黄色丨97国产精品亚洲精品丨麻豆影院免费夜夜爽日日澡丨青草青在线视频在线观看

The moving platen of the new control system of the hydraulic press will be controlled by the new programmable logic controller (PLC), and the leveling cylinder will be controlled by the new electro-hydraulic motion controller.

The electrical control engineer added, "we also have experience with other motion controllers. But compared with other products we have tried, the selected motion controllers are easier to integrate with PLC and provide more functions and flexibility. They can also carry out more accurate positioning and force control."

In order to provide position information, four leveling cylinders are equipped with linear magnetostrictive displacement sensors, which are connected with the synchronous serial interface (SSI) of the motion controller. In order to provide force information, each cylinder is equipped with two pressure sensors, one of which is connected to each cylinder port.

In order to maintain the cylinder level throughout the cycle, the motion controller is programmed to perform virtual gear transmission. This is the command issued by the motion controller, which enables each of the four leveling cylinders to accurately follow the movement of the spindle. While controlling the position of each cylinder, it also controls the force applied to each cylinder. This configuration supported by the motion controller is called dual loop position force control.

The operation of the hydraulic press includes three consecutive steps. The motion controller drives four leveling cylinders with magnetostrictive displacement sensors protruding from the father through three position and force control curve sequences. The three steps are:

1. Speed force: the leveling cylinder with magnetostrictive displacement sensor maintains parallelism when pushed downward by the moving pressing plate, and the speed is opposite to that of the moving pressing plate until it is closed on the glass fiber material.

2. Resistance: during the curing process, some of the processes also involve coating the glass fiber material. The leveling cylinder with magnetostrictive displacement sensor must maintain parallelism, which is opposite to the force maintained by the moving pressing plate, to ensure the parallelism control.

3. Stripping force: at the end of all cured profiles, moving the pressing plate will reduce pressure, and its weight will be borne by the leveling cylinder with magnetostrictive displacement sensor. The leveling cylinder moves from the start closed-loop position, while limiting the stripping force.

Article source: magnetostrictive displacement sensor http://www.skicc.cn