Control method of numerical control system of bag-sewing machine for realizing high-speed process without needle dragging

Abstract

The invention relates to a control method of numerical control system of a bag-sewing machine for realizing high-speed process without needle dragging, and belongs to the technical field of the numerical control system. The method includes controlling a sewing needle by a controller to move from a lowest position to a cloth plane height in a controlling process of one needle time; controlling the sewing needle to move from the cloth plane height to a highest position and then move to the cloth plane height, controlling movement of a cloth-delivering platform to keep a needle-long distance, and controlling an extra material cutter to rotate with a deviation angle corresponding to a needle-long distance; and at last, controlling the sewing needle to move from the cloth plane height to the lowest position. The sewing needle can be controlled to move upwards and downwards in a cloth and stop cloth-delivering movement at the same time, so that needle delaying condition can be effectively avoided, sewing effect can be guaranteed, processing efficiency can be greatly improved, and overall production cost can be reduced. An application mode of the control method is simple and convenient, and application range is wide.

Description

technical field [0001] The invention relates to the technical field of numerical control systems, in particular to the technical field of machining control methods for numerical control machine tools, and specifically refers to a control method for realizing high-speed machining without dragging needles by the numerical control system of a bag-stitching machine. Background technique [0002] Numerical Control (NC) is the English abbreviation of Numerical Control. It refers to the technology of using digital instructions composed of numbers, characters and symbols to realize the motion control of one or more mechanical equipment. The NC device is mainly composed of input, processing and The output consists of three basic parts. And all these tasks are rationally organized by the computer's system program, so that the whole system operates in a coordinated manner. The bag stitching machine is a machine that uses one or more sewing threads to form one or more stitches on the s...

AI Technical Summary

Problems solved by technology

However, if the processing speed of the existing numerical control system of the bag-setting machine reaches a certain height value (for example, 3000r / min), when the sewing needle moves up and down, when the needle hits the cloth until it reaches the lowest point, the numerical control system is still at the same time. During the horizontal movement of cloth feeding, the needle will pull a certain distance in the cloth, and the phenomenon of dragging the needle will appear.

Dragging the needle will cause the sewn pocket to be unattractive, and it will also break the sewing needle, which will reduce the processing efficiency and increase the processing cost

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