How are woven bags produced?

Our company is a professional manufacturer of woven bags. In the past decade, various types of woven bags have been developed and researched. Today, the editor will briefly share with you the production process of woven bags.

1. Operation before startup
(1) Dry and mix the raw and auxiliary materials required for weighing or measuring. The raw material mixed with recycled woven bag particles is first added to a drying mixer for heating. The mixing temperature of recycled material particles is controlled at about 80 ℃, and when the temperature reaches the set value, it is released into the mixing box for heat dissipation. Add the new material to the drying mixer and stir until the temperature reaches 500 degrees. Then, add the filling masterbatch and continue stirring until it turns into powder. Add the required coloring pigment in a timely manner, stir for about 1 minute, and release it into the mixing box. Stir evenly with the recovered material particles. If the raw material is powder mixed with recycled material particles, first heat the recycled material particles to about 70 degrees and add them to the filling masterbatch to continue stirring. When the temperature reaches the set value, pour them out and place them in the mixing box to mix evenly with the powder released later for later use. If paraffin needs to be added to the recycled material particles, first heat the recycled material particles to about 70 degrees, process the paraffin into small pieces, and continue stirring. (2) Add the prepared resin into the extruder hopper. (3) Open the cooling water valve of the water tank. (4) After the extrusion temperature reaches the specified requirements, maintain a constant temperature for 15 minutes.

2. Startup steps
(1) Start the extruder motor and stop it immediately after about 30 seconds. Observe for any abnormalities and repair immediately if any are found. Wait until the enemy obstacle is eliminated before starting the motor to operate. (2) Start the electromagnetic speed control motor of the stretching machine and adjust the speed to the desired position. (3) Start all motors of the wire winding machine and adjust the required speed. (4) After the molten material is extruded from the mold mouth, use a 0.2mm thick plug to clean the dirt inside the mold mouth and the coke on the mold lip. (5) Pull the flat film out of the water tank and roll it onto the film roller of the stretching machine. When the flat film is clean and free of spots, pull it through the slitting frame, guide wire roller, I oven, stretching guide wire roller, II oven, and shaping guide wire roller. Then, apply a knife to the knife holder to cut the flat film into wire blanks, which are processed through the above processes to form the required flat wire. Finally, wind the wire in sequence on the winding unit.

3. Normal operation
(1) When the machine is running normally, adjust the speed of the extruder, stretching machine, and winding machine according to the required thickness of the flat wire. (2) Adjust the temperature of the two ovens. (3) Adjust the tension of the winding wire, adjust the 15A regulator to 100-160V, and from a distance, the flat wire has elasticity between the stretching machine and the winding machine. (4) Always observe the thickness of the film, and once it is found that the film is gradually thinning, immediately stop the machine and replace the filter screen.

4. Parking steps
(1) Before shutting down, lower the heating temperature controllers of the barrel, tee, and die by about 20 degrees Celsius. (2) Reduce the screw speed to zero, turn off the extruder motor, and at the same time reduce the stretching speed to zero, turn off the stretching machine motor. (3) Cut flat silk. The closer the cutting wire is to the winding machine, the better. (4) Turn off all motors of the wire winding machine. (5) Turn off all heater power.