CN112710354A

CN112710354A - Sisal yarn comprehensive tester

Info

Publication number: CN112710354A
Application number: CN202011540796.1A
Authority: CN
Inventors: 狄文秀; 嵇金豪; 刘梅城; 洪杰
Original assignee: Shanghai Textile Group Testing Standard Nantong Co ltd
Current assignee: Shanghai Textile Group Testing Standard Nantong Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-27

Abstract

The invention discloses a sisal yarn comprehensive tester, wherein sisal yarn is led out through an unwinding roller and enters the center of a cylindrical detection head through a yarn guide roller, a tension roller is arranged between the yarn guide roller and the unwinding roller, and the tension of the sisal yarn is adjusted through the tension roller; sisal yarns pass through the central position of the cylindrical detection head, are detected by the cylindrical detection head and are led out through a yarn leading roller; the inner wall of the cylindrical detection head is uniformly provided with 6 high-definition CCD detection heads, according to the scanning angle of each CCD detection head, each position on the surface of the yarn is ensured to be provided with two or more CCD detection heads for scanning detection, and data analysis is carried out on each detection point according to the information of the scanning detection of the two CCD detection heads. The sisal hemp yarn detection device can simultaneously detect the yarn diameter, roundness, burr, twist angle, diameter irregularity, burr irregularity and twist irregularity of the sisal hemp yarn, saves time, has high working efficiency and can meet the requirements of people.

Description

Sisal yarn comprehensive tester

Technical Field

The invention belongs to the field of yarn detection, and particularly relates to a sisal yarn comprehensive tester.

Background

The performance of the yarn mainly relates to the thickness (diameter/linear density) of the yarn, the hairiness (burr) of the yarn, the twist of the yarn and the like, a series of different detection instruments are further needed for detection, and the quality of the yarn is comprehensively judged according to the detected result.

The yarn testing device is intended to test the quality of the test yarn with the aim of achieving, on the one hand, a consistency in the quality of the fabric product to be produced and, on the other hand, of monitoring the fabric production process on the basis of random samples obtained off-line. Known yarn testers of this type operate on the continuous flow principle, i.e. the yarn to be tested is drawn from a spool in a single test run and continuously passed over a sensor device in the yarn tester in order to measure the required performance index. This is a substantially continuous process, but these devices generally can only detect one yarn performance indicator at a time, are inefficient, and do not meet the needs of people.

In addition, the existing equipment has certain defects in testing adaptability due to the fact that various yarns are faced, and for example, burrs of thick sisal yarns cannot be detected through a specific instrument. Therefore, various special devices are often needed to respectively carry out detection on various yarns, the efficiency is low, and the requirements of people cannot be better met.

Disclosure of Invention

The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a sisal yarn comprehensive tester.

The technical scheme is as follows: a sisal yarn comprehensive tester comprises an unwinding roller, a tension roller, a yarn guide roller, a cylindrical detection head and a yarn leading roller;

the sisal yarn is led out by the unwinding roller and enters the center of the cylindrical detection head through the yarn guide roller, a tension roller is further arranged between the yarn guide roller and the unwinding roller, the tension of the sisal yarn is adjusted through the tension roller, and the sisal yarn is led out by the yarn guide roller after being detected by the cylindrical detection head;

6 high-definition CCD detection heads are uniformly distributed on one circle of the inner wall of the cylindrical detection head, two or more CCD detection heads are ensured to be arranged on each position of the surface of the yarn for scanning detection according to the scanning angle of each CCD detection head, data analysis is carried out on each detection point according to the information of the scanning detection of the two CCD detection heads, and the movement and the diameter change of the surface burr, the yarn or the twist angle, the fiber are correctly judged; meanwhile, CCD detection heads with different specifications are configured according to the thickness of the sisal yarns.

As an optimization: the unwinding roller and the yarn leading roller can rotate positively and negatively, and when the unwinding roller and the yarn leading roller rotate positively, yarns can be led out for detection; when the unwinding roller and the yarn-drawing roller are reversed, the detected yarn is rewound.

As an optimization: the sisal yarn comprehensive tester can simultaneously detect the yarn diameter, the roundness, the burr, the helix angle (twist), the diameter irregularity, the burr irregularity and the twist irregularity of the sisal yarn.

As an optimization: the roundness of the sisal yarn is expressed in percentage by comparing the measured cross section of the yarn with the cross section of the regular circular cross section.

As an optimization: the burr of the sisal yarn is exposed on the yarn body main body by detection and exceeds a certain length range: the number of fibers of not less than 3mm is recorded.

As an optimization: the twist angle of the sisal yarns is an included angle between the fibers which are spiral on the surface of the detection yarn body and the main body of the yarn body, and the larger the angle is, the larger the twisting degree is.

As an optimization: the sisal yarn is characterized in that the diameter unevenness and the twist unevenness of the sisal yarn can be calculated by a CV value variation coefficient formula according to data measured in a certain range, and the burr unevenness is calculated by a CV formula according to the number of fibers which are exposed on the main trunk of the yarn body and exceed a certain length and are measured in the yarn with a certain length.

Has the advantages that: the sisal yarn comprehensive tester adopts multi-angle CCD scanning and non-contact detection, and simultaneously detects the yarn diameter, roundness, burr, spiral angle (twist), diameter irregularity, burr irregularity and twist irregularity of the sisal yarn.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the cylindrical detector head of the present invention;

FIG. 3 is a schematic view of the scanning angle of the cylindrical detector head of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.

Examples

As shown in fig. 1-3, a sisal yarn comprehensive tester comprises an unwinding roller 1, a tension roller 2, a yarn guide roller 3, a cylindrical detection head 4 and a yarn guide roller 5.

The sisal yarn 6 is led out by the unwinding roller 1, the sisal yarn 6 enters the center of the cylindrical detection head 4 through the yarn guide roller 3, the tension roller 2 is further arranged between the yarn guide roller 3 and the unwinding roller 1, the tension of the sisal yarn 6 is adjusted through the tension roller 2, and the sisal yarn 6 is led out through the yarn guide roller 5 after being detected by the cylindrical detection head 4;

6 high-definition

CCD detection heads

41, 42, 43, 44, 45 and 46 are uniformly distributed on the inner wall of the cylindrical detection head 4, and according to the scanning angle of each CCD detection head, two or more CCD detection heads are ensured to scan and detect on each part of the surface of the yarn, and according to the information of the scanning and detection of the two CCD detection heads, data analysis is carried out on each detection point, and the change of the surface burrs, the yarn or fiber twist angles and the diameter is correctly judged. Meanwhile, CCD detection heads with different specifications are configured according to the thickness of the sisal yarns.

The unwinding roller 1 and the yarn leading roller 5 can rotate positively and negatively, and when the unwinding roller 1 and the yarn leading roller 5 rotate positively, yarns are led out for detection; when the unwinding roller 1 and the yarn drawing roller 5 are reversed, the detected yarn is rewound, and waste in yarn detection can be reduced.

Wherein, the roundness of the sisal yarn is expressed by percentage by comparing the measured transverse form section of the yarn with the regular circular transverse form section.

The burs of the sisal yarns are recorded by detecting the number of fibers exposed on the yarn trunk and exceeding a certain length range (more than or equal to 3 mm).

The twist angle of the sisal yarns is an included angle between the fibers which are spiral on the surface of the detection yarn body and the main body of the yarn body, and the larger the angle is, the larger the twisting degree is.

The sisal yarns are uneven in diameter and twist, and can be obtained by measuring data in a certain range and calculating by adopting a CV value variation coefficient formula. The burr unevenness is calculated by CV formula according to the number of the fibers exposed to the main yarn body and exceeding a certain length measured in the yarn with a certain length.

Such as: 0.9Nm (1111.11tex) sisal yarn, which is detected to have the diameter: 1.36mm, roundness: 0.92, burr: the number of burrs in 10cm is 21.6 (more than 0.5cm long), the burr irregularity is: 5.3%, the diameter irregularity is: 6.5%, twist irregularity: 7.2%, twist angle: 35.5, twist 13.6 twists/10 cm.

The sisal yarn comprehensive tester can simultaneously detect the yarn diameter, the roundness, the burr, the helix angle (twist), the diameter irregularity, the burr irregularity and the twist irregularity of the sisal yarn, saves time, has high working efficiency and can meet the requirements of people.

Claims

1. The utility model provides a sisal yarn integrated test appearance which characterized in that: comprises an unwinding roller (1), a tension roller (2), a yarn guide roller (3), a cylindrical detection head (4) and a yarn guide roller (5);

the sisal hemp yarn (6) is transmitted through the unwinding roller (1), the sisal hemp yarn (6) enters the center of the cylindrical detection head (4) through the yarn guide roller (3), a tension roller (2) is further arranged between the yarn guide roller (3) and the unwinding roller (1), the tension of the sisal hemp yarn (6) is adjusted through the tension roller (2), and the sisal hemp yarn (6) is led out through the yarn leading roller (5) after being detected through the center of the cylindrical detection head (4);

6 high-definition CCD detection heads (41, 42, 43, 44, 45, 46) are uniformly distributed on one circle of the inner wall of the cylindrical detection head (4), according to the scanning angle of each CCD detection head, two or more CCD detection heads are ensured to carry out scanning detection on each position of the surface of the yarn, data analysis is carried out on each detection point according to the information of the scanning detection of the two CCD detection heads, and the movement and diameter change of surface burrs, the yarn or the twist angle and the fiber are correctly judged; meanwhile, according to the difference of the thickness of the sisal yarns, CCD detection heads with different specifications are configured.

2. The sisal yarn comprehensive tester of claim 1, wherein: the unwinding roller (1) and the yarn leading roller (5) can rotate positively and negatively, and when the unwinding roller (1) and the yarn leading roller (5) rotate positively, yarns are led out for detection; when the unwinding roller (1) and the yarn-drawing roller (5) are reversed, the detected yarn is rewound.

3. The sisal yarn comprehensive tester of claim 1, wherein: the sisal yarn comprehensive tester can simultaneously detect the yarn diameter, the roundness, the burr, the helix angle (twist), the diameter irregularity, the burr irregularity and the twist irregularity of the sisal yarn.

4. The sisal yarn comprehensive tester of claim 3, wherein: the roundness of the sisal yarn is expressed in percentage by comparing the measured cross section of the yarn with the cross section of the regular circular cross section.

5. The sisal yarn comprehensive tester of claim 3, wherein: the burr of the sisal yarn is exposed on the yarn body main body by detection and exceeds a certain length range: the number of fibers of not less than 3mm is recorded.

6. The sisal yarn comprehensive tester of claim 3, wherein: the twist angle of the sisal yarns is an included angle between the fibers which are spiral on the surface of the detection yarn body and the main body of the yarn body, and the larger the angle is, the larger the twisting degree is.

7. The sisal yarn comprehensive tester of claim 3, wherein: the sisal yarn is characterized in that the diameter unevenness and the twist unevenness of the sisal yarn can be calculated by a CV value variation coefficient formula according to data measured in a certain range, and the burr unevenness is calculated by a CV formula according to the number of fibers which are exposed on the main trunk of the yarn body and exceed a certain length and are measured in the yarn with a certain length.