Company Profile
Our company
WELTOP MACHINERY Co., Ltd. is specialized in professionally producing centrifugal casting machine.
We are a leader in the foundry machinery industry with over 20 years of design and manufacturing experience. We are able to provide global customers with high-quality custom design, R&D, and manufacturing of foundry equipment, and have a perfect after-sales system.
We design and develop casting equipment for a wide range of industries. Cooperation with excellent customers has kept our technology in continuous progress, and the mechanical mechanism and automation level are constantly optimized and updated, helping customers improve production efficiency and product quality.
Product Description
8 station centrifugal casting machine for cylinder liner is composed of the multi-station engines and a auxiliary engine. 8 main engines are evenly distributed on the rotary round table.The main engine is rotated to different positions by the rotary round table.Four sets of auxiliary engines is distributed around the rotary round table fixedly.When main engine is rotated to corresponding position,each auxiliary engine will complete respective function to main engine with cleaning mold ,spraying coating,pouring and extracting the casting.
The main engine'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.
The feature of machine :1 less area 2 more production efficiency 3high level of automation--all operations are performed by one person 4 suit for cylinder liner's continuous production with large quantities and single item
Feature
main engine
The main engines are obtained high-speed and stable as feature. The key factor of casting's quality is whether tube molds are smooth running.Therefore, The more smooth running of the main engine is ,the less radial run-out of the tube molds in high speed,the more uniform wall thickness of cylinder liner is and the more stable the structure performance will be.
The main engine adopts cantilever structure with the bearing base adopting cast iron material, so it has a good shock absorption capacity. The main engine use ac frequency conversion motor and vector control converter. Riding wheel is rotated by V belt.So it ensures that the tube molds can be controlled with precise speed governing.Spindle braking system ensures the fast stop of the tube molds. So the productivity can be improved.
Rotary round table
8 station engines are evenly distributed on the rotary round table.Each main engine is switched to different position by rotary round table.The rotary round table is controlled by AC servo.When rotating it is rapid,smooth and accurate position.Also the speed is adjustable.
Cleaning system
Residual coatings in the inner wall of mold are cleaned rapidly.The cleaning bogie moves axial direction along the mold. On the cleaning bogie there is a spinning brush which clean the inner wall of mold.The brush can be changed to meet the different inner radius of mold. The cleaning device contains spraying nozzles and corresponding dust collector.
Spray coating
It has excellent spray coating quality.The function of tube mold's inner coating: 1 reduce the impact of metal liquid on the tube molds
2 reduce the peak temperature of the tube molds
3 effectively prolong the service life of the tube molds
4 increase the friction force between the tube molds and liquid metal
5 shorten the time of the pour-in metal liquid to achieve the tube rotation speed and also facilitate the casting pieces to release from the molds in tube drawing process.
The movement of the spray lance is controlled by servo.So it has the feature of smooth running and position adjustable.It ensures the uniformity of the coatings.The movement of the spray lance can be divided into three section.The speed and distance can be adjust in each section.Coordinate the rotation speed of the tube molds with the spraying pressure, the requirements of a variety of complex spraying processes can be satisfied.
Electric control system
Control system use PLC as the control core and use the man-machine interface as the monitoring system.It controls the whole process automatically and monitors the whole production process.Control system has the perfect protective measures, such as over-current protection, over-load protection, etc. The process parameters of the main engine and the auxiliary engine all can be adjusted and stored in the man-machine interface such as work positions and velocity. It meets the production process requirement of a variety of cylinder liner castings in a certain range.
Pouring system
Automatic pouring device is composed of pouring vehicle, pouring ladle, etc.
Pouring vehicle can serve two engines for pouring respectively.
The ladle's pouring speed can be adjusted.The automatic weighing device is used in pouring vehicle,which can ensure the consistency of the weight for each batch of cylinders. The weight of the molten iron in the ladle can be displayed on the big screen and the records can be printed.
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