High-speed and stable running of the main machine
The running stability and the rotation speed of the tube molds are the key factors affecting the quality of the product. Therefore, the requirement of stability in the running of the main machine is very high. In high-speed operation, the smaller the radial run-out of the tube molds is, the more uniform the wall thickness of cylinder liner will be, and also the more stable the structure performance will be. The main machine is of cantilever construction with bearing blocks made of cast iron for good shock absorption. The stepless VVVF AC motor and high-performance vector control converter are adopted to drive the spindle rotating via high-performance V-shaped belt, thus to ensure accurate speed regulation of mould. The spindle is also provided with a brake that can ensure rapid stop of mould so as to enhance production efficiency.
Rotary workbench with rapid, smooth and accurate positioning function
The main multiple machines are arranged on the workbench that can realize multi-position shifting of each machine. The AC servo control is adopted for rapid and smooth rotation, accurate positioning and rotating speed regulation.
The spray rod movement adopts servo control, which can stabilize the rod moving and make the rod positions adjustable, thus ensuring the uniformity of the coatings. The moving speed of the spraying rod can be divided into three adjustable phases, each of which can be adjusted in moving distance and moving speed to cooperate with the rotation speed of the tube molds and the spraying pressure to meet the requirements of a variety of complex spraying processes.
Two-station fully automatic centrifugal casting machine is composed of the two engines and a auxiliary engine. The two engines which are controlled by VFD are parallel layout. The two engines share auxiliary engine and pouring equipment. Auxiliary engine is controlled by servo and it includes cleaning, spraying, pouring, cooling, casting extraction devices .The whole process are controlled automatically.
The main engineâ??s speed is adjustable and steady in the high speed.The Spraying process is very advanced of multistage velocity control. The key process parameters are real-time monitor and adjusted by automatic control system. So it can ensure the casting process parameters repetition and consistency. It eliminates the influence of artificial factors to the casting process parameters. So it ensures stable quality of the casings.
