AT227 Series Pilot Scale Screw Melt Spinning Machine

★ Material Melting and Spinning Part

It consists of extruding part, extrusion measuring head, metering pump, spinning system and cross air-blowing device.

1. Extruding Part

l Extruding screw made of high-temperature alloy tool steal with three sections of electric heating, heating power up to 3KW.

l It adopts heating rods to heat and copper bush for heat soaking.

l Independent temperature controlling and adjusting module for each heating section and adjustable temperature range of from room temperature up to 320℃.

l Programmable temperature controller for each section with PID control and auto-turning to keep the temperature accuracy with ±0.5℃.

l Driven by frequency-variable motor with power of 2.2KW.

l Water-cooling copper coiler at the discharge port to rapid adjust the temperature of the discharge port.

2. Extrusion Measuring Head

l Independent pressure sensor and temperature sensor mounted on the extrusion measuring head, real-time monitor the pressure and temperature.

l Pressure sensor accurate to 0.1N and temperature sensor accurate to ±0.5℃.

3. Metering Pump

l All of main body of pump, gears and bearings are made of tool steel, high temperature resistant up to 400℃.

l Heating power up to 3KW.

l Applicable liquids of viscosity ≤ 40000Pas and temperature ≤400℃.

l Pump cleaning temperature not more than 450℃.

l Input pressure up to 12Mpa.

l Maximum pressure difference up to 25Mpa.

l Standard flow of 2.4cc/rev.

l Driven by frequency-variable gear motor with power of 320W.

l Real-time acquisition and display of melt pressure and temperature.

l Built-in pressure sensor and temperature sensor in pump.

4. Spinning System

l Crystal fiber heating furnace with heating power up to 3KW;

l Adjustable temperature range from room temperature to 320℃.

l Maximum material filling up to 3L per time.

l Three heating sections, rapid heating, high heat efficiency and excellent heat insulation.

l Barrel made of 316 stainless steel, thickened wall and uniform material heating.

l Barrel adopts full copper bush for heat soaring and uniform heating.

l Solid relay to control heating elements, accurate temperature controlling, durable and no noise.

5. Cross Air-blowing Device

l Water-cooling fan to blow.

l Cool air passes through the halftone of air filter to enter the channel.

l Effective blowing area of 150×150mm.

★ Oiling & Winding Part

1. Rotary Oiling Device

l PA6 roll with adjustable opening and closing design, convenient to start and stop at any time.

l Oiler driven by gear motor with power of 450W with variable speed of 300~1000m/min.

l Oil tank made of 304 stainless steel, rust-proof and durable.

2. Hot Rolls

l Diameter of 125mm and length of 125mm.

l With polishing and chroming surface treatment, hard surface and excellent wear resistance.

l Electric induction heating, clean, environment-friendly and low maintenance cost.

l Temperature range from 70℃ to 200℃.

l Independent variable frequency motor with power of 450W to drive for independent speed adjustment.

l Speed range of 100~500m/min.

3. Winding Head

l Rubber friction pulley.

l Speed range from 300m/min to 1000m/min.

l Maximum winding pole size of 120×¢320mm.

★ Measuring and Controlling Part

1. Data Monitor

l Real-time monitoring of material temperature and wall temperature.

l Air paths adopts full 304 stainless steel pipes, valves and pressure meter.

l Programmable temperature controller, PID automatic temperature control and programmable temperature controlling for three heating sections.

l PC remote control and interface display of extruding speed, hot roll speed, winding speed, metering pump speed, temperature and other necessary alarm and signal.

2. Over-limit Alarm

l Over load alarm.

When over load, system will shut off the electricity.

l Over temperature alarm.

When over temperature, machine stops heating.

l Extruding pressure over-limit alarm

When extruding pressure beyond the limit, motor stops rotating.

l Metering pump rotation speed alarm

When metering pump rotation speed is away from the set value, auto alarm display.