The lubrication system of the high-speed industrial sewing machine is to solve the lubrication of the moving pair between the components under high-speed operating conditions, so as to ensure the normal operation of each moving pair. However, due to the sealing problem of the lubricating system, it has always become a key problem of the sewing machine. In the case of poor sealing, the leakage of lubricating oil often pollutes the sewing material and becomes a quality problem that users reflect more. The use of no oil supply and micro oil supply is the fundamental measure to solve the leakage quality problem of lubricating oil. For this reason, the new high-speed industrial sewing machine has a new structure without oil supply and micro oil supply. The main structures are as followings.
◆ No oil supply method
The needle mechanism, thread take-up mechanism and shuttle mechanism in the sewing machine adopt the non-oil supply method. However, due to the high sewing speed of the sewing machine, each pair of movements during high-speed movement is not lubricated by lubricating oil, which will generate friction and heat, making the machine damaged and the machine unable to work normally. As a result, the new high-speed industrial sewing machine generally performs special treatment on the surface of the main motion auxiliary components of the needle mechanism, the thread take-up mechanism, and the shuttle mechanism to ensure that the machine works normally. The current method is to apply special materials, such as polymer materials and ceramic materials, to the surface of the sports pair. However, due to the current coating process has not yet been further verified. In particular, the operating speed of the shuttle mechanism is twice that of the main shaft, and the structure is complex, the difficulty of applying special materials, and the service life is low. At present, it can only reach the sewing speed of 4000 stitches, which is far from the user's requirements. To actively explore the subject.
◆ Micro oil supply method
There are many ways of micro oil supply.
One is the use of micro oil supply to the shuttle mechanism in the high-speed industrial sewing machine. Because the main cause of oil pollution is the oil produced by the lower part of the needle bar of the machine head, the new sewing machine has established an independent oil supply system for the shuttle mechanism to ensure the high-speed operating conditions of the high-speed industrial sewing machine. The other is the use of micro oil supply for the needle mechanism, thread take-up mechanism and shuttle mechanism in the sewing machine. On the one hand, the new sewing machine specifically establishes an independent oil supply system for the shuttle mechanism. On the other hand, it supplies oil to the needle mechanism and thread take-up mechanism with grease lubrication. Or for the needle mechanism and the thread take-up mechanism, the micro oil supply method under the state of no pressure is adopted, and the oil method is used to supply the oil without recycling.
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