Device and method for measuring yarn torque through free rotor

Abstract

The invention discloses a device and a method for measuring yarn torque through a free rotor. The device comprises a box body, a computer assembly, a torque detection component and a fixing component,wherein the torque detection component and the fixing component are arranged in the box body; the torque detection component comprises a rotor assembly and a photoelectric door sensor, wherein one end of the rotor assembly is connected with yarn, and the photoelectric door sensor is arranged on the side portion of the rotor assembly; the photoelectric door sensor is connected with a circuit boardfixed to the box body through a wire and used for obtaining the angular speed of the rotor assembly; the fixing component is composed of a base, a lifting table, a rotating shaft and a beam; and thecomputer assembly is connected to the circuit board through a wire. In the abovementioned way, the yarn can be punched and knotted on a rotor positioning piece and freely droop, the torque can be fully released, the rotor is driven to rotate, the photoelectric door sensor measures the rotating angle of the rotor, then the rotating angle is analyzed and processed through the computer assembly connected to the circuit board through the wire, and therefore the torque of the yarn is obtained, and the measurement precision is greatly improved.

Description

technical field [0001] The invention relates to a detection device, in particular to a device and method for measuring yarn torque through a free rotor. Background technique [0002] At present, in the production process of the yarn, multiple single strands need to be twisted. When the strands are twisted to the parallel state of the surface fibers, the combined torque of the entire strands is not zero; after the yarn is woven into a fabric , under the action of all yarn torques, the weft skew of the fabric will occur. [0003] Weft skew is one of the compulsory detection indicators of fabric quality, because it will have a serious adverse effect on the cutting of the fabric and the appearance of the garment. Therefore, factories generally reduce the torque of the strands to a reasonable range by steaming and setting the yarn, but this torque cannot be completely eliminated. However, in the actual production process, under the same steaming conditions, different batches of...

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Problems solved by technology

[0007] In order to overcome the problems of low detection accuracy, complex detection process and high cost of the existing yarn torque detection device, the present invention provides a rotor with fixed moment of inertia, through which the yarn is perforated and knotted on the rotor positioning part, and it hangs freely , so that the torque can be fully released, and the rotor is driven to rotate. The photoelectric gate sensor measures the angle of the rotor, and after the analysis of the computer components, the torque of the yarn is obtained, which greatly improves the measurement accuracy.

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