Traditional cylinder liner production enterprises use independent
multiple cantilever centrifugal casting machines to produce
cylinder liner castings. The production efficiency is low, the
product quality is unstable, the labor intensity is high, the
working environment is bad, and it is a typical labor-intensive
industry. With the development and progress of society, the market
demands higher and higher quality of cylinder liners, and at the
same time, the cost of cylinder liners is required to be further
reduced. In the environment of rising raw material and labor cost,
the traditional production method is difficult to meet the market
requirements and seriously restrict the sustainable development of
cylinder liner production enterprises. Therefore, the high
efficiency, highly automated and stable production process of
advanced cylinder liner casting production equipment is the
necessary equipment for the future development of cylinder liner
enterprises. The double-station automatic
servo-controlled cylinder sleeve centrifugal casting machine adopts
the integrated structure of double main machines + multi-station
auxiliary machines, with double main machines arranged side by side
and controlled by frequency conversion. The double main machines
share one set of auxiliary machine and casting devices. The
auxiliary machine is controlled by a servo drive, which realizes
the automatic control of the whole process of cleaning, spraying,
pouring, cooling, pulling, and taking out the parts of the cylinder
sleeve centrifugal casting production. The high speed and smooth
speed adjustable main machine, advanced multi-stage and multi-speed
spraying process, and real-time monitoring and adjustment of key
process parameters in the whole casting process ensure the
consistency of the casting process for each cylinder liner product,
eliminate the influence of human factors on the casting process
parameters, and fundamentally ensure the stability of the inner
quality of the cylinder liner casting. The machine covers an area
of less space, has high production efficiency, and needs only one
person to operate. It is very suitable for the continuous
production of single species and large quantities of cylinder liner
blank castings.Product DescriptionMachine features:High speed and
smooth running of the main engine The smooth running and speed
of the pipe die is the key factor affecting the product quality.
The smaller the radial runout of the die at high speed, the more
uniform the wall thickness of the cylinder liner and the more
stable the organization's performance.The main engine adopts the
structure of four pallets, and the bearing seat is made of cast
iron, which has good vibration damping. The surface of the pallets
is hardened and finely ground, and the AC step-less frequency
control motor + high-performance vector control frequency converter
is used to drive the rotation of the pallets through the
high-performance V-belt, which ensures the precise speed control of
the pipe die.Accurate positioning control of auxiliary machine
movements --- The cleaning, spraying and pipe-pulling mechanisms
are centrally arranged on a movable platform. By changing the
position of the moving platform, the working position of the three
auxiliary machine stations of cleaning, spraying and pipe pulling
can be switched. The servo positioning control method is used to
control the action position and speed of the spraying, pipe drawing
and moving platform to achieve high speed and accurate positioning
of the auxiliary machine to meet the strict process requirements,
while shortening the action time and improving work
efficiency. Excellent spraying quality The inner layer
coating of the pipe mold can reduce the impact of the metal liquid
on the pipe mold and lower the peak temperature of the pipe mold,
which can effectively extend the service life of the pipe mold, and
at the same time increase the friction between the pipe mold and
the liquid metal, shorten the time required for the poured metal
liquid to reach the rotation speed of the pipe mold, and also make
the castings easy to be released from the mold when pulling out the
pipe.The movement of the spray bar is servo-controlled, with smooth
movement and adjustable position to ensure the uniformity of the
spraying layer. The moving speed of the spray bar can be divided
into three adjustable sections, and the moving distance and speed
of each section can be adjusted to meet the requirements of various
complex spraying processes by matching the rotating speed of the
pipe mold and the spraying pressure. Real-time monitoring of
tube mold temperature and water spray cooling Mold temperature
has a very big influence on the quality of cylinder liner.
Especially the metallographic organization and hardness. If the
mold temperature is too high, the wet coating is easy to burst, the
coating is not uniform, the surface quality of the sleeve cannot be
guaranteed, and shorten the life of the mold; i
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