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About the overall production process of industrial filter bags

About the overall production process of industrial filter bags Jiangsu Jinke Environmental Engineering Technology Co., Ltd. takes you to understand:


1. The production of the elastic ring The specification of the elastic ring is one of the critical dimensions that determine whether it can be installed smoothly. The diameter of the ring is determined by the length of the blank. The deviation of the center distance of the elastic ring should be controlled within ±0.5 mm. Inside. The width of the elastic ring is generally between 19-30 mm, and the riveting at the elastic ring joint should be positive, straight and smooth. Its material is generally spring steel and stainless steel.
2. The production of concave groove strips and the sewing of concave grooved strips are made by professional sewing machine. The groove width of the concave strips and the thickness of the selected fabric are the key elements. The groove width of the concave groove strips should be uniform and uniform. When the strip is bonded to the elastic ring, the center of the groove should correspond to the center of the width of the elastic ring, and the groove at the joint should be aligned to avoid installation difficulties.
3, the production of the bag mouth and the sewing bag mouth is generally parallelogram, first sew it into a cylindrical shape, when loading the elastic ring and the concave groove assembly, pay attention to the tidy edge, to ensure that the concave groove The width of the groove does not become narrow, and the circumferential slit is extended as close as possible to the seam of the edge of the elastic ring and the concave groove assembly. When the bag mouth and the bag body are sewn, the skew phenomenon is not allowed. Generally, the stitching of the stitches for three weeks should be uniform and beautiful. The sewing thread material and material used must be the same or higher than the sewing thread material. At special conditions, there should be at least one week of high temperature and corrosion resistant stitching. All stitches should be firm and reliable, without jumpers or floating lines. The stitch length is between 3.3 and 4.2 mm.
4. The bottom of the bag and the bottom of the sewing bag are generally sewn with a reinforcing layer, and the height is generally 60 to 100 mm. (Cut with professional cutting equipment) First sew the reinforcement layer into a cylindrical shape, then sew it to the outside of the bottom, and stagger the splicing stitches and the gap stitches of the filter bag body. The circumference of the reinforcement layer is single needle or When the double needle is sewn for 1 to 2 weeks, when sewing the bottom of the bag, if the single stitch is used, the spacing of the stitches is controlled to 4 to 5 mm, and the outer stitch stitches should have a distance of 4 to 5 mm from the edge.
5. The sewing bag body of the bag body is sewn with a three-needle six-wire machine. The stitches should be straight without floating lines, jumpers, and dropped roads. The stitch length is between 3.3 and 4.2 mm, and the outer stitch distance is The edge is 2 to 3 mm. When the filter bag is sewn for a long time, the stitch is prone to twisting. During the sewing process, the upper and lower pieces are stitched together to avoid twisting of the sewing thread.

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