Ningbo Fangli Technology Co., Ltd. is a
mechanical equipment manufacturer with nearly 30 years’ experiences of plastic
pipe extrusion equipment, new environmental protection and new materials
equipment. Since its establishment Fangli has been developed based on user’s
demands. Through continuous improvement, independent R&D on the core
technology and digestion & absorption of advanced technology and other
means, we have developed PVC pipe extrusion line, PP-R pipe extrusion line, PE
water supply / gas pipe extrusion line, which was recommended by the Chinese
Ministry of Construction to replace imported products. We have gained the title
of “First-class Brand in Zhejiang Province”.
1. Raw material mixing: PVC stabilizer,
plasticizer, antioxidant and other auxiliary materials are successively added
into the high-speed mixer according to the proportion and process. The
materials are heated to the set process temperature through the self-friction
between the materials and machinery, and then the materials are reduced to
40-50 degrees by the cold mixer; in this way, it can be added to the hopper of
the extruder.
2. Extrusion part: The extruder is equipped
with quantitative feeding device to match the extrusion amount with the feeding
amount to ensure the stable extrusion of products. Due to the characteristics
of conical screw, the feeding section has a large diameter, which is conducive
to the plasticization of materials due to the large heat transfer area and
shear speed of materials. The diameter of screw in the metering section is
small, which reduces the heat transfer area and shear speed of melt, so that
the melt can be extruded at a lower temperature. When the screw rotates in the
barrel, the PVC mixture is plasticized and pushed to the head, so as to achieve
compaction, melting, mixing and homogenization; and achieve the purpose of
exhaust and dehydration. The feeding device and screw drive device adopt
frequency conversion speed regulation, which can realize synchronous speed
regulation
3. Extrusion die part: PVC after
compaction, melting, mixing and homogenization, and subsequent materials are pushed
to the die through the screw. The extrusion die is a relevant part for pipe
forming.
4. The vacuum tank is used for the setting
and cooling of pipes. The vacuum tank is equipped with vacuum system and water
circulation system for setting and cooling, stainless steel box, circulating
water spray cooling, and the vacuum tank is equipped with front and rear moving
devices and manual devices for left, right and high-low adjustment.
5. The haul-off is used to continuously and
automatically lead the cooled and hardened pipe (pipe production line) out of
the machine head for frequency conversion speed regulation.
6. Cutting machine: after being controlled
by the travel switch according to the required length, it will automatically
cut and delay the frame turnover to implement flow production. The cutting
machine takes the fixed length switch signal as the command to complete the
whole cutting process and keep pace with the pipe operation in the cutting
process. The cutting process is driven by electric and pneumatic. The cutting
machine is equipped with dust suction device to suck out and recycle the debris
produced by cutting in time.
If you need more information, Ningbo Fangli
Technology Co., Ltd. welcomes you to contact for a detailed inquiry, we will
provide you with professional technical guidance or equipment procurement
suggestions.