A measurement device (10) for measuring dynamometric features of elongated textile samples of the yarns, threads, tapes type and the like, such a device (10) comprises a first clamp (12), a second clamp (13) that is substantially aligned and relatively movable with respect to the first clamp (12) along a first translation direction (A), wherein each of the first clamp (12) and the second clamp (13) comprises a fixed jaw (14, 16) and a movable jaw (15, 17) in relation to the respective fixed jaw along a second translation direction (B) substantially orthogonal to the first translation direction (A) and wherein the movable jaw (15, 17) is movable between a resting position, in which it is spaced apart with respect to the respective fixed jaw (14, 16), and an operating position, in which it is near to the respective fixed jaw (14, 16) in order to clamp a respective portion of an elongated textile sample against it, first force detection means (47) that are coupled with the first clamp (12) for detecting the tensile force applied to the textile sample, and second movement detection means for detecting the relative movement of the second clamp (13) with respect to the first clamp (12), the device (10) being characterized in that at least one of the fixed jaw (14, 16) and the movable jaw (15, 17) of at least one of the first clamp (12) and the second clamp (13) comprises a base body (18, 19) to which a clamping body (22, 26) is coupled, said clamping body (22, 26) being provided with a clamping surface (22a, 26a) that faces a corresponding surface of the other respective fixed jaw or mobile jaw for clamping a respective portion of textile sample against it, wherein such a clamping body (22, 26) is coupled to the respective base body (18, 19) so as to be able to oscillate about at least two axes different from each other.

Modular equipment (100) for automatically determining features of elongated textile samples of the yarns, threads, tapes type and the like, the equipment (100) comprises a housing (101) on which at least one loading module (102) for loading the inlet ends of a plurality of textile samples to be tested is mounted, each textile sample being fed from a corresponding package supported by support means that are associable with the equipment, at least one measurement module (103, 104, 106) for measuring at least one structural or physical-mechanical feature of the textile samples, handling means (105) for handling the textile samples between the loading module (102) and the at least one measurement module (103, 104, 106), and a central unit of the programmable type for controlling and managing the loading module (102), the at least one measurement module (103, 104, 106) and the handling means (105), the equipment (100) being characterized in that the loading module (102) comprises a plurality of gripping members (200) that are arranged aligned to one another along a loading direction (DC), wherein each of the gripping members (200) is movable between a gripping position and a release position of the inlet end of a respective textile sample, at least one carriage (201) that is driven in a movable manner in both translation senses along a translation direction parallel to the loading direction (DC), and motor means (202) associated with the at least one carriage (201) for operating the at least one carriage (201) moving along the translation direction, wherein the at least one carriage (201) comprises at least one operating group selected from the group comprising: a cutting group (210), a braking group (211), a guiding-return group (209, 213) and a suction group (212) of a textile sample, said at least one operating group is arranged at the side of the gripping members (200) facing towards the at least one measurement module (103, 104, 106), and wherein the central unit is adapted to control and operate the motor means (202) for controlling and operating the movement of the at least one carriage (201) so as to selectively arranged it at one of the gripping members (200).

A device and a method of whole lifecycle multi-indicator synchronous detection of yarns or fabrics are provided. The device includes a hairiness detection unit, a first guide unit, a tension adjustment unit, and a friction unit. The device is used for circularly rubbing a closed-loop object to be detected with a preset length on the friction unit, and collecting hairiness data in real time through the hairiness detection unit. The tension adjustment unit is a free-falling tension adjustment unit used to automatically adjust tension of the object to be detected in real time to ensure the stability of friction and transmission of the object to be detected. By arranging the circulating friction closed-loop circuit and arranging the free-falling tension adjustment unit on the circuit, the friction stability is improved. The synchronous and rapid detection of multiple indicators of the object to be detected can be realized.

A yarn entanglement strength tester includes first and second rolls that apply incrementally increasing elongation levels on a yarn in order to remove entanglements from the yarn. The yarn entanglement strength tester also includes a third roll, where the second and third rolls apply a constant tension on the yarn which enables optimum diameter measurements of the yarn by a camera. The camera captures images of diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn. The yarn entanglement strength tester further includes a computing device that controls operation of the camera and the first, second, and third rolls, and determines an entanglement strength of the yarn based on the captured images of the diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn.

A method is provided for monitoring at least one yarn quality parameter and/or a parameter of a sensor by an electronic cleaner of yarn by means of an optical detector comprising a sensor with one or two rows of individual optical elements. The individual optical elements provide at their outputs an analog signal proportional to the intensity of its irradiation, the value of which is monitored during each measurement cycle. In the first and/or the second row of optical elements of the sensor, for each monitored parameter, individual optical elements of the sensor, are selected constituting an active zone for monitoring a particular parameter. The number of the optical elements in one active zone in one row is lower than the overall number of the optical elements in the corresponding row, and the output analog signal of the individual optical elements of the corresponding active zone is included in the evaluation of the particular parameter.

A method for accurately testing yarn hairiness through stretching one-directionally, belonging to a technical field of textile testing, is provided. A suction pipe is provided on an external side of a laser and connected with an exhausting fan through a sleeve connector and a hose. An air inlet of the suction pipe generates a negative pressure under an effect of the exhausting fan to laterally suck the yarn running at a tension state among the laser, a projection receiver and the suction pipe. The hairiness on a yarn surface stretches straight one-directionally towards an airflow direction at a height of a center of the air inlet of the suction pipe. The one-directional straight stretched hairiness on the yarn surface is accurately projected to the projection receiver of a testing head at an equal length for accurately testing a hair amount and a hair length.

Provided is a yarn-out state detection method, an electronic device and a storage medium, relating to the field of computer, and in particular to the fields of detection technology, artificial intelligence technology and neural network model technology. The method includes: collecting a first image and laser reflection data of a target yarn path in a spinning box; obtaining an image feature of the target yarn path according to the first image; obtaining a laser feature of the target yarn path according to the laser reflection data; and using a yarn-out state detection model to obtain a yarn-out state of the target yarn path according to the image feature and the laser feature.

Embodiments of the present disclosure pertain to computer-implemented methods of reconstructing a fiber length distribution of a fiber from its fibrogram by receiving the fibrogram; determining an end of the fibrogram; applying a windowed curve-fitting procedure to smoothen the fibrogram curvel and estimating the fiber length distribution of the fiber from the smoothened fibrogram curve. The methods may also include one or more steps of reconstructing an initial and missing portion of the fibrogram; assessing fiber quality based on the estimated fiber length distribution; adjusting one or more fiber-related conditions based on the estimated fiber length distribution; and repeating the method after the adjustment. Additional embodiments pertain to computing devices for reconstructing a fiber length distribution of a fiber from its fibrogram.

The present disclosure provides a system, apparatus and method for generating randomly aligned fiber beards for evaluation. The system comprises abase and an x-axis frame member couples to and is positioned parallel to the base. A y-axis frame member is couple to and positioned perpendicular to the base. A sample plate is removably coupled to the y-axis frame member and defines one or more holes. A fiber clamp couples to and is movable by the x-axis frame member perpendicularly to the sample plate.

The subject invention pertains to a new method for measuring the elastic properties of microfibers by rope-coiling. Rope-coiling refers to the buckling of a slender elastic fiber caused by axial compression. A continuous flow microfluidic method enables the high-throughput measurement of the elasticity of microfibers by rope-coiling, where sample loading and unloading are not needed between consecutive measurements. In certain embodiments the coiling radius can be directly proportional to the elastic modulus of the fiber, facilitating calibration to measure fiber elasticity for high-throughput applications. Throughput can be thousands of times higher than that of a tensile tester, making possible an in situ, on-line measurement in a microfluidic production line, which couples the making of microfibers and the measurement of elasticity on the same line. The new method can also measure certain fibers with local variations in elasticity.