Polypropylene spinning machine equipment is used to process polypropylene (PP) and other polymer materials into polypropylene fiber professional equipment.

Working principle of polypropylene spinning machine equipment

Polypropylene spinning machine uses the characteristics of polymer material melting and flow at high temperature, heating polypropylene slicing and other raw materials to a molten state, extrusion through the screw extruder, after the metering pump accurate measurement, extrusion from the small hole in the spinneret to form a wire tow, and then through a series of processes such as cooling, stretching, winding, and finally forming polypropylene fiber.

Structural composition

Feeding system: mainly includes hopper, drying device, etc. The hopper is used to store the polypropylene raw material, and the drying device is to remove the water in the raw material to prevent the water from causing fiber quality problems during the spinning process, such as bubbles, broken heads, embrittlement, etc.

Heating melting system: usually consists of a screw extruder and a heating device. The screw extruder pushes the raw material forward through a rotating screw, while heating devices are set in different sections of the screw to gradually heat up the raw material to a molten state. The heating device generally uses electric heating or thermal oil heating, which can accurately control the temperature to ensure uniform melting of raw materials.

Metering system: The metering pump is the core component of the metering system, which can precisely control the extrusion amount of the molten material and ensure the uniform thickness of the spun fiber. Metering pumps usually adopt high-precision gear pumps or plunger pumps, and different specifications and models can be selected according to production needs.

Spinneret system: composed of spinneret plate and spinning box. The spinneret has a number of tiny spinneret holes through which the molten material is extruded to form strands. The spinning box provides a stable working environment for the spinneret, including temperature, pressure and other aspects of control.

Cooling system: After the tow is extruded from the spinneret, it needs to be cooled and solidified quickly to form a stable fiber shape. The cooling system is generally air-cooled or water-cooled, and the cooling speed and effect of the wire bundle are controlled by adjusting the speed and temperature of the cooling wind or the flow and temperature of the cooling water.

Drawing system: Drawing is an important process to improve the strength and performance of polypropylene fiber. The drawing system is usually composed of several drawing rollers, which stretch the tow by drawing rollers with different speeds, so that the molecular chains in the fiber are arranged along the axial orientation of the fiber, so as to improve the strength, modulus and other performance indicators of the fiber.

Winding system: the stretched fiber is wound into a certain specification of silk cake or bobbin for subsequent processing and use. The winding system includes winding head, tension control device and other components, which can accurately control the winding speed, tension and other parameters to ensure the winding quality.

effect

The role of polypropylene spinning machine equipment is mainly to process polypropylene and other polymer materials into polypropylene fibers with specific properties and uses, as follows:

Production of different specifications of polypropylene fiber: by adjusting the spinning process parameters and equipment structure, different wire density, strength, elongation and other specifications of polypropylene fiber can be produced to meet the needs of different fields.

Polypropylene fiber with good performance: polypropylene fiber has many excellent properties, such as light weight, high strength, wear resistance, corrosion resistance, chemical resistance, no water absorption, good heating and so on. By precisely controlling the spinning process, the polypropylene fiber can give full play to these performance advantages, and is widely used in clothing, home textiles, industrial textiles and other fields.

To achieve continuous production of polypropylene fiber: polypropylene spinning machine equipment adopts automatic control system, which can realize the continuous production process from raw material input to finished fiber winding, improve production efficiency and reduce production costs. At the same time, continuous production can also ensure the stability and consistency of product quality, which is conducive to large-scale industrial production.

Changzhou Fubon Chemical Fiber Machinery Factory Technical production: Polypropylene spinning machine, polypropylene FDY spinning machine, polypropylene FDY equipment, polyester POY spinning machine, polyester POY production line, polyester POY equipment, polyester POY machinery, polyester recycled bottle FDY spinning machine, polyester FDY spinning machine, polyester FDY machinery, Spandex spinning machine, spinning special parts, polyester small Experimental machine, polypropylene small experimental machine, nylon small experimental machine.

Changzhou Fubon Chemical Fiber Machinery Factory Technical  is a research and development and production of all kinds of chemical fiber machinery as the main professional manufacturing suppliers, research, development, production and sales as one, in order to meet the market demand, our factory has established a perfect chemical fiber spinning experimental base, to provide customers with good equipment and technical services. We mainly provide customers with complete sets of polyester, polypropylene, nylon, spandex and other chemical fiber complete sets of equipment, and undertake a variety of related equipment renovation projects and customized services.