Dongguan Zuolong Machinery Co., Ltd. upholds a spirit to be down-to-earth and fearless in the development. Now we have many honors and certifications. Zuolong Machinery enjoys developed telecommunication and traffic convenience. The geographic location is superior and the natural conditions are good. Zuolong Machinery is dedicated to solving your problems and providing you with one-stop and comprehensive solutions. Zuolong Machinery has a scientific management mode and great production capability. We carry out standard and scale production, so as to ensure that we could meet customers' needs for large-quantity orders of quality machinery. We can provide OEM/ODM services.

How many years of knitting history? In ancient times,Our ancestors learned to sew simple clothes such as animal skin and leaves with fishbone needles and stone needles,With the development of iron and metal manufacturing technology,People gradually learned to use metal needles to sew clothes,The shape has also been greatly improved,And has been used so far.The earliest sewing machine was to sew cloth or leather with single, double and multiple wires and machine needles,Or sew a machine with decorative thread marks on the seam material.For home, industrial and service companies.After the mid-18th century industrial revolution,The large-scale production of the textile industry has promoted the invention and development of sewing machines.1790,Britain first invented the world's first single-line chain thread sewing machine for punching holes, threading and sewing shoes.1841,The French invented a chain thread sewing machine with a hook.1851,American worker I.M.The winner invented the locking thread se

I bought a half sleeve of Li Ning in the mall. I didn't expect the needle of the semi-cut sewing machine to be inside at the gap of the clothes. how to deal with it? How to compensate? First of all, let's check whether the needle is installed correctly,It's better to change a new machine needle.2, if still not,We went on to open the needle,Turn the needle to the lowest position,Look at the rotary shuttle tip from the machine needle 8mm or so.If yes,Then raise the machine needle 2.3mm or so,Look at whether the rotary shuttle tip coincides with the machine needle center.At this time, the needle and the tip of the shuttle can not be too tight,There should be 0.1 gap.3, sometimes the needle has a little bend will also jump the needle, the easiest way is to change the needle to try, if not, when the needle is installed, try a little bit, only a little bit, otherwise, it will break the line. sometimes such a simple operation is also very effective.4. it also has something to do with the thickness of you