Extrusion system
Our plastic bottle molding machines house an extrusion system that
is engineered for peak performance. Central to this system is an
automatic temperature - controlling device from a globally -
renowned brand. In the extrusion process, maintaining the ideal
temperature for plastic materials is a make - or - break factor.
Different plastics, such as PET, HDPE, and LDPE, have specific
temperature ranges within which they exhibit optimal flow
characteristics.
The world - class temperature controller offers a precision that is
unrivaled in the industry, with an accuracy of ±0.5°C in some
models. This minuscule margin of error is essential as it ensures
that the plastic is in a perfect molten state when it is pushed
through the extrusion die. For example, in the production of clear
PET bottles for the beverage industry, a consistent temperature is
required to maintain the plastic's transparency and mechanical
strength. If the temperature fluctuates, it can lead to cloudiness
in the bottle walls or weaken the material, making it more prone to
breakage.
To drive the screw, we employ an advanced electromagnetism motor
reducer. This setup enables seamless stepless regulating, providing
operators with a high degree of control. The speed and torque of
the screw can be adjusted in real - time according to the nature of
the plastic material and the production requirements. When working
with a highly viscous engineering plastic, a higher torque setting
can be applied to force the material through the die. Conversely,
for less viscous materials, a lower torque and higher speed can be
selected to optimize the extrusion rate. This flexibility not only
improves the quality of the plastic strands but also enhances the
overall productivity of the machine.
Clamping device
The clamping device in our machines is a marvel of engineering,
featuring a bi - directional synchronous clamping mechanism with a
double - axis single - cylinder design. This innovative
configuration is designed to provide maximum stability during the
plastic bottle molding process.
During injection and molding, the molds must be held together with
extreme precision. The bi - directional synchronous clamping
ensures that the force applied to the molds is evenly distributed
across both the X and Y axes. This is crucial as any uneven force
can cause misalignment between the mold halves, resulting in
defective bottles with uneven walls, flash, or incorrect shapes.
The double - axis design further enhances this by providing a more
balanced clamping action.
The single - cylinder, despite its simplicity, is a powerhouse. It
is capable of generating extremely high clamping forces, which are
necessary to handle large and complex molds. For instance, when
producing large - scale industrial containers, the molds are heavy
and require a significant amount of force to keep them tightly
closed during the injection of molten plastic. Our clamping device
can easily meet these demands, ensuring that the plastic is
properly shaped and that the final product meets the highest
quality standards. Additionally, the stable clamping reduces wear
and tear on the molds, extending their lifespan and reducing the
need for frequent replacements.
Blowing device
Our plastic bottle molding machines are equipped with an upper -
blowing type blowing device, which offers several distinct
advantages in the production of plastic bottles.
When the molten plastic pre - form is ready for blowing, the upper
- blowing mechanism comes into play. This method allows for a more
controlled and uniform distribution of air pressure. The result is
a more even expansion of the plastic, leading to bottles with
consistent wall thickness and shape. In the production of narrow -
necked perfume bottles, for example, the upper - blowing device can
precisely shape the delicate neck and shoulder areas. The air is
directed from the top, which gives operators better control over
the shaping process. This not only improves the aesthetic appeal of
the bottles but also ensures that they are functional, with proper
fitting caps and no leakage issues.
Compared to other blowing methods, the upper - blowing type reduces
the risk of air pockets or uneven inflation. In some traditional
blowing techniques, air may not be distributed evenly, causing thin
spots or bulges in the bottle walls. The upper - blowing design
also offers energy - saving benefits. It requires less air pressure
to achieve the desired bottle formation, which not only reduces
energy consumption but also lowers operating costs.
Hydraulic system
The hydraulic system in our plastic bottle molding machines is a
paragon of quality and performance, incorporating world - famous
brand controlling components and a sophisticated proportional
controlling circle.
The use of top - tier controlling components is a testament to our
commitment to delivering a reliable and high - performing machine.
These components are designed to withstand the harsh operating
conditions of the hydraulic system, which involves high - pressure
fluid flow and continuous cycling. The world - renowned brand
valves, pumps, and actuators ensure smooth and efficient operation,
minimizing the risk of leaks and malfunctions.
The proportional controlling circle is a key feature that sets our
hydraulic system apart. It enables precise control of the hydraulic
flow and pressure. Operators can adjust the speed and force of
various hydraulic - powered operations with great accuracy. For
example, during the injection process, the proportional control can
rapidly increase the hydraulic pressure to ensure a quick and
complete filling of the mold. During mold opening and closing, the
pressure can be carefully adjusted to prevent damage to the molds.
This level of control not only improves the efficiency of the
machine but also enhances the quality of the plastic bottles
produced. By optimizing the hydraulic system, we can reduce cycle
times and increase overall productivity.
Electric controlling system
Our plastic bottle molding machines are equipped with an advanced
electric controlling system, with a programmable controller from
B&R Austria at its core. B&R is a leading name in
industrial automation, and their involvement in our machines brings
a high level of intelligence and flexibility.
The programmable controller is highly versatile and can be
customized to manage every aspect of the machine's operation. From
the initial start - up sequence, where it checks the status of all
components and ensures proper initialization, to the complex
coordination of multiple processes during production, the
controller is in charge. It can synchronize the extrusion system,
clamping device, blowing device, and hydraulic system to work in
perfect harmony. If there is a change in the production
requirements, such as a different bottle size or a switch to a new
plastic material, the programmable controller can be easily
reprogrammed to adapt.
Every electric component in the system is sourced from world -
famous brands, ensuring consistent performance, reliability, and
compatibility. The motors, sensors, and relays work together
seamlessly. The sensors can accurately detect various parameters
such as temperature, pressure, and position, providing real - time
feedback to the programmable controller. Based on this feedback,
the controller can make instant adjustments to maintain optimal
operating conditions. For example, if the temperature in the
extrusion barrel starts to deviate from the set point, the
controller can adjust the heating or cooling elements to bring it
back to the desired temperature. This ensures the smooth operation
of the machine and the production of high - quality plastic
bottles.
