Reciprocating type numerical control cored string ball tension control method

Abstract

The invention discloses a reciprocating type numerical control cored string ball tension control method. The reciprocating type numerical control cored string ball tension control method comprises the following steps that a controller receives a first signal, and a set command is sent to an air cylinder according to the first signal, wherein the air cylinder is used for driving a position sensor to move; the air cylinder receives the set command to drive the position sensor to move towards the side away from a balance position; the controller receives a second signal sent by the position sensor and sends a drive command to a drive device according to the second signal, wherein the second signal comprises data of A, and A is the ratio of the distance by which the position sensor deflects from the balance position to the maximum stroke of the position sensor; and the drive device is used for receiving the drive command to drive a mandrel of a string ball to rotate according to preset actions so that the string tension can be accurately controlled. By means of the reciprocating type numerical control cored string ball tension control method, the tension can be stabilized within 1-2 seconds, the labor intensity of workers is greatly relieved, and the yarn winding quality can be better ensured.

Description

technical field [0001] The invention relates to the technical field of manufacturing composite material winding equipment, in particular to a reciprocating numerical control method for controlling the tension of a cored yarn cluster. Background technique [0002] The winding molding process is to wind the continuous fiber (or cloth tape, prepreg yarn) impregnated with resin glue on the mandrel according to certain rules, and then solidify and demould to obtain the product. [0003] During the winding process of the composite yarn, because the thickness of the yarn itself is not uniform, or the surface of the wound workpiece is not smooth, or the design of the winding process is unreasonable, or the shell part of the mandrel is transversely (basically perpendicular to the axis of the mandrel) To) winding to the longitudinal winding of the head part (basically parallel to the axial direction of the mandrel), or switching from the longitudinal winding of the head to the transve...

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Problems solved by technology

[0003] During the winding process of the composite yarn, because the thickness of the yarn itself is not uniform, or the surface of the wound workpiece is not smooth, or the design of the winding process is unreasonable, or the shell part of the mandrel is transversely (basically perpendicular to the axis of the mandrel) To) winding to the longitudinal winding of the head part (basically parallel to the axial direction of the mandrel), or switching from the longitudinal winding of the head to the transverse winding of the barrel, or at the beginning of winding, or other reasons, Both may lead to fluctuations in the tension of the yarn during winding, if it is not controlled within a reasonable range, the processed product may be unqualified

At the beginning of winding, when the yarn ball is manually unwound, the traction speed is indeterminate (0-60 m / min linear speed), and the yarn winding should be controlled in the indeterminate range so that the yarn has a stable Tension, it takes at least 20 seconds, the time is long, manual traction is laborious and labor-intensive

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