It is tested before supplying to patrons on numerous quality parameters. It produces low noise during the use. Dongguan Zuolong Machinery Co., Ltd. has professional production team and advanced production equipment. Besides, we adopt scientific inspection methods to strictly control each production link. All this provides a powerful guarantee for the high quality of industrial sewing machine. Zuolong Machinery adheres to the great fantasy of leading the growth of thread trimming machine business. Welcome to visit our factory! With finest technology applied into producing industrial sewing machine, the quality has been improved. Zuolong Machinery's products are sold to both domestic and foreign markets After years of development, Zuolong Machinery has rich industry experience in the machinery manufacturing. We successfully created the brand called our team. Different styles for sewing machine meets different needs of people. It achieves high precision owing to the control of microcomputer and electronic eye. our company's sewing machine is guaranteed to be of high quality and great safety. We have the following certifications. our company is certified by various qualifications. We have advanced production technology and great production capability. automatic cutting machine has many advantages such as reasonable structure, excellent performance, good quality, and affordable price. we, situated in Second Floor, Area B, No. 251, Tingfeng Science And Technology Park, Xiangfu Road, Chenjiapu, Liaobu Town,Dongguan City,Guangdong Province,ChinaYPE 2016 liao bu zhen dong guan guangdong, focuses on the production and sales of computerised elastic cutting machine .our company was founded in 2009. In the past years, we have been focusing on the design, production, and sales of machinery. We enjoy a good reputation in the industry.we strives to open up domestic and international markets. computerised elastic cutting machine are sold to various countries and regions around the world. They are well recognized by consumers. The materials of our company automatic button attaching machine have remarkable advantages compared with the traditional ones. It has the function of notch identification and transformation. The quality of this product meets the requirements of many international certifications. It has the function of notch identification and transformation. Apart from our high quality products, we wins the trust of our customers with thoughtful and meticulous service. It has the function of notch identification and transformation. thread trimming machine developed and produced by our company is mainly applied to the following aspects.

How to adjust the speed of the computer sewing machine? 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 your sewing.Thick things should be thicker,If the needle is fine, it will jump,If something thin,If the needle is thick, it will als

Old-fashioned household sewing machine old jumper what's going on? This is what I collected in the sedan net,I don't know if I can solve your problem.1, can not lead the bottom line.Analysis: the shuttle line is too short, the shuttle line is stuck in the shuttle door, the machine needle is too high,The shuttle can't hold the wire ring.Processing Method: lengthen the shuttle line and check whether the bottom line is stuck,And exclude it.Needle rod connecting shaft firm screw loose needle Rod moving up,The needle stick should be lowered,Re-needle,Tighten the fastening screw.2. the needle rod moves.Analysis: needle hole, needle Rod wear, needle rod connection screw looseness,Needle rod displacement.Treatment method: change the needle Rod sleeve,Or choose a new needle Rod, re-needle;And tighten the tightening screw.3. jump through a number of needles.Analysis: Shuttle wear,The tip of the swing shuttle is too blunt, the needle is too high or too low.Treatment method: change the shuttle, adjust the height