What is the function of the high-strength polypropylene Yarn Stretching Machine?

The high-strength polypropylene Yarn Stretching Machine is a core equipment in the industrial production of polypropylene (polypropylene fiber). Its core function lies in achieving high-performance and large-scale production of fibers through multi-level process control. This equipment uses polypropylene chips as raw materials. After being extruded and melted by a screw, the initial filaments are formed through a spinning assembly and then enter the critical drawing stage. The equipment is equipped with multiple pairs of hot roller drawing systems. By precisely controlling the temperature (usually between 80 and 130℃) and the drawing ratio (up to 5 to 8 times), the fiber molecular chains are highly oriented and a dense crystalline structure is formed. Eventually, high-strength polypropylene FDY (fully oriented filament) with a monofilament strength of 7.0 to 7.5g/D is produced.

What are the main components of a polypropylene Yarn Stretching Machine?

1. Automatic feeding machine

2. Masterbatch injection machine

3. Screw extruder

4. Pre-filter (selected by the user)

5. Spinning box and components

6. Metering pumps and drives

7. Side-blowing air and passageways

8. Stretch the hot roller

9. Winding frame and oil nozzle (oil tanker) oiling device

10. Network device

11. Fully automatic winding machine

12. Electrical control system: It includes screw pressure control cabinet, spinning box temperature control cabinet, drawing temperature control cabinet, drawing frequency conversion cabinet, winding frequency conversion cabinet and conventional electrical control system, etc.

Jiangxi Donghua Machinery Co., Ltd. specializes in manufacturing polypropylene spinning machines, polypropylene Yarn Stretching Machines, polypropylene spinning and drawing machines, polyester spinning machines, high-strength and high-modulus polyethylene fiber spinning equipment, high vacuum dynamic drying - solid-phase thickening integrated machines, aramid 1414 fiber spinning equipment. Our products are of excellent quality. Welcome to purchase!