Dongguan Zuolong Machinery Co., Ltd. is the leading brand of industrial sewing machine in China. In the future, Zuolong Machinery keeps carrying forward the enterprise spirit of 'morality, pragmatism, and innovation'. We devote ourselves to seek practical innovation in business management. We adopt the advanced management mode for modern enterprise and strive to become a leading company in the industry. Zuolong Machinery's automatic cutting machine is widely used in various industries and fields. Zuolong Machinery's automatic cutting machine is various in types and styles to meet the different needs of customers. It is strictly tested by our experienced QC team before packing. It features groundbreaking technologies to ensure users' productivity is boosted. our team strictly controls the raw material selection and the production links and sets up a quality inspection department responsible for factory inspection. All this ensures the excellent quality of sewing machine. We pay great attention to business reputation. The products are diverse in type and reliable in quality. If you have any needs, feel free to contact us at any time.

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The needle starting point of the computer sewing machine is not normal Generally, the sewing machine or the computer sewing machine are fixed with three screws,Loosen it to adjust the position of the shuttle and the straight needle,Then the parts of the fixed shuttle are called positioning hooks,And the position of the shuttle is generally not easy to adjust if too close or too far.Only a little bit of grinding wheel can be removed on both sides of the wide handle of the positioning hook,Then you can adjust it.General positioning hook and shuttle clearance is 2-3mm.(1) refueling parts: each oil hole on the head, lubrication upper shaft and components connected to the upper shaft;The components in the panel and the moving parts connected by each component;Lubrication the foot rod and needle Rod and the components connected to it;Clean the moving parts of the lower part of the machine board and add less oil.(2) precautions for maintenance of sewing machines: After the work is completed,Insert the needle int