With the development of the economy, the use of ton bags has become more and more extensive, the technology has become more and more advanced, and the quality has become better and better. It is widely used in industrial production, so what is the process flow of the ton bag manufacturer?
(1) Wire drawing: The wire drawing production line includes screw feeder, wire drawing machine, cooling water tank, tractor, winder and other parts. Firstly, the raw material polypropylene and anti-aging and anti-purple agent masterbatch are proportioned, enter the sealing mixer through the screw elevator (the temperature inside the machine is about 200 ℃), and after about 15 minutes of stirring, enter the wire drawing machine through the screw elevator for melting. The melted raw material is extruded from the wire drawing machine into a film shape, and then enters the cooling water tank for cooling. The cooled polypropylene film is cut on a wire drawing machine, and then stretched by multiple pulling machines to meet the requirements of product thickness and width, and to enhance the toughness of the product. The ends are wound into wire ingots by a winder for use in subsequent processes.
(2) Circular weaving: The silk processed in the wire drawing process is woven in the circular weaving workshop through a circular loom, woven into a tubular woven bag and rolled, and then goes into the next process to continue production.
(3) Cutting: cutting according to customer's different size requirements.
(4) Sealing: The cut woven bag is sewn on the bottom with a special sewing machine, and the bottom part of the seam is sealed with a sealing strip to further improve the sealing of the product.
(5) Packing: Pack and compress the manufactured ton bags to reduce the space occupied by the products and facilitate subsequent storage and transportation.
It is also necessary to test the ton bag under various environmental conditions, such as taking the ton bag material one hour in advance and placing it in an environment with a temperature of 18-22 ° C and a humidity of 60-70; The bag is stretched until it breaks, and then its tensile strength is measured; the ton bag is filled with things, and then lifted repeatedly 70 times to see the integrity of the contents and the damage of the bag.