Method for controlling high-speed running of direct drive industrial sewing machine

Abstract

The invention provides a method for controlling high-speed running of a direct drive industrial sewing machine. The method comprises the step of determining the relation between the needle bar up-and-down moving and sewing process and up-and-down moving of a main shaft as well as the angle of an encoder under the condition of not conveying cloth, and particularly the method realizes the purpose of improving the sewing speed and sewing effect through dynamically adjusting the cloth conveying time of the X shaft and Y shaft of the sewing machine. By using the method, the problems that in the existing control method, the patterns are reduced when a thick fabric is sewn and the sewing efficiency is low can be solved, and the sewing efficiency is further improved on the premise of guaranteeing the sewing quality.

Description

technical field

[0001] The invention relates to a control method of a sewing machine, in particular to a high-speed motion control method of a direct-drive industrial sewing machine. Background technique

[0002] Special sewing machines such as electronic knotting machines and electronic pattern machines are indispensable processing equipment in the production process of clothing, bags, shoes and hats. At present, the control method adopted by special sewing machines is to detect the encoder signal of the spindle motor while the spindle servo motor is rotating, and then control the movement of the X-axis and Y-axis to feed materials according to the angle of the spindle motor. Due to the fixed feeding angle, when the spindle of the special sewing machine is moving at high speed, the pattern will be reduced when sewing thick materials, or the sewing speed cannot be increased in order to ensure the sewing quality of the pattern, which affects production efficiency. Contents ...

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