CN114387237A - Yarn package surface hairiness index detection method and device - Google Patents

Yarn package surface hairiness index detection method and device Download PDF

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Publication number
CN114387237A
CN114387237A CN202111666697.2A CN202111666697A CN114387237A CN 114387237 A CN114387237 A CN 114387237A CN 202111666697 A CN202111666697 A CN 202111666697A CN 114387237 A CN114387237 A CN 114387237A
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yarn package
hairiness
yarn
image
support
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Inventor
王静安
高卫东
潘如如
王蕾
王梦蕾
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Jiangnan University
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Jiangnan University
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/12—Edge-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/13—Edge detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention relates to a method and a device for detecting the surface hairiness index of a yarn package, wherein an image sensor is adopted in the method for detecting the surface hairiness index of the yarn package, an image of yarn on a package bus is collected from the tangential direction of the package surface, and the hairiness amount in the image is identified and analyzed through a digital image processing technology, so that the detection of the surface hairiness index of any package is realized. The detection results can be used to evaluate the quality of the hairiness of the yarn package without the need for destructive sampling of the yarn. The yarn package surface hairiness index detection device is stably connected with the peripheral surface of the outer edge of the yarn package through the supporting part, and after the focal plane is adjusted, the surface hairiness image acquisition can be carried out on the yarn packages with different outer diameters, so that the use is convenient and rapid.

Description

Yarn package surface hairiness index detection method and device
Technical Field
The invention relates to a method and a device for detecting the amount index of yarn package surface hairiness.
Background
Textile manufacturing processes are processes in which yarns are made from fibers and fabrics are made from the yarns. In the overall production flow of spinning, yarns are used as products of spinning enterprises and raw materials of weaving enterprises, and have a large number of package forms with different dimensions. The warp beam warping machine includes small bobbin yarn package, medium bobbin yarn package, large warp beam package, and large warp beam package. As the yarn changes from being manufactured to being packaged, the properties of the yarn change in each process. The hairiness is an important yarn performance index, and has important influence on final weaving production and product quality.
At present, the yarn hairiness quantity index evaluation of different packages in the textile production process mainly adopts a hairiness instrument to perform destructive sampling detection on yarns on the packages. The method has accurate detection result, but the product needs to be sampled and subjected to destructive test, the formation of a detection report is lagged, the detection efficiency is low, and the waste of the yarn is easily caused.
Disclosure of Invention
The invention firstly solves the technical problems that: the method for detecting the amount index of the hairiness on the surface of the yarn package is provided, so that the problem that destructive testing needs to be carried out on the yarn in the traditional hairiness quality detection of the yarn package is solved, the detection efficiency is improved, and the yarn waste is avoided.
In order to solve the technical problems, the invention adopts the technical scheme that: the method for detecting the amount index of the hairiness on the surface of the yarn package is characterized by comprising the following specific steps of:
s1, selecting any bus on the surface of the yarn package as a collecting line;
s2, calibrating at least one shooting area along the axial direction of the collecting line, wherein the shooting areas are not overlapped;
s3, erecting a shooting device along the tangential direction of the surface of the yarn package, and adjusting the focal plane of the shooting device to enable the collection line to be positioned on the focal plane;
s4, determining the actual physical length corresponding to each pixel in the image on the focal plane acquired by the shooting device by adopting a calibration detection device;
s5, shooting a hairiness image on the surface of the yarn on the collecting line in at least one shooting area;
s6, carrying out digital processing on the hairiness image on the surface of each yarn to obtain a two-value image of the hairiness and a two-value image of the main body part of the yarn package;
s7, counting the pixel points which are expressed as hairs in all the hair feather binary images, and obtaining the total length l of the hairs by calculating the length of the pixel points at the edge of each hair feather and dividing the sum by 2; carrying out statistical conversion on the total number of black pixel points adjacent to the white pixel points in the binary image of all the yarn package main body parts to obtain the actual length L of the yarn package main body in the image;
s8, calculating the hairiness length value in the axial unit length of the surface of the yarn package according to the formula L/L, namely the hairiness index of the surface of the yarn package.
Preferably, in step S4, the method includes positioning the ruler on the focal plane where the acquisition line is located, capturing images by the capturing device, performing digital processing to obtain a pixel map of the ruler, and calculating an actual physical length and width corresponding to each pixel according to the scale on the ruler.
As a preferable scheme, the specific method of step S6 is:
s601, converting the yarn surface hairiness image obtained in the step S5 into a pixel map;
s602, dividing the yarn package main body and the rest parts in the pixel diagram by adopting an Otsu method to obtain a binary diagram of the yarn package main body part;
s603: and processing the pixel map of the yarn surface hairiness image by adopting a Canny edge algorithm to obtain a hairiness binary image.
The invention further aims to solve the technical problems that: the collecting device is used for supporting the yarn package surface hairiness quality detection method and quickly obtaining the yarn package surface hairiness image required by the yarn package surface hairiness quality detection method.
In order to solve the technical problems, the invention adopts the technical scheme that: the yarn package surface hairiness index detection device comprises a support and a computer, wherein two ends of the support are respectively connected with a front cantilever and a rear cantilever, the front cantilever is connected with a shooting device, the rear cantilever is connected with a background plate, the background plate is opposite to a lens of the shooting device, a supporting part used for being connected with the outer surface of a yarn package is arranged at the lower end of the support, when the supporting part is connected to the outer circumferential surface of the yarn package, the axial line of the lens is tangent to the outer circumferential surface of the yarn package, the shooting device is detachably connected with the computer, and a shot image can be sent to the computer by the shooting device.
As a preferred scheme, the support is a rectangular frame, the support part comprises four support columns which are connected to four top corners of the support in a one-to-one correspondence manner, and the four support columns are parallel to each other and perpendicular to a plane where the support is located, and are arranged on two sides of the front cantilever in a pairwise manner.
Preferably, the front suspension arm and the rear suspension arm are respectively fixedly connected to the centers of two parallel side edges of the support, the free end of the front suspension arm extends in a direction away from the support, the free end of the rear suspension arm also extends in a direction away from the support, and the distance between two support columns on the same side of the front suspension arm is smaller than the minimum diameter of the yarn package.
As an optimal scheme, the free end of the front cantilever is connected with a guide post which extends downwards and is parallel to the support column, the outer portion of the guide post is slidably sleeved with a sliding sleeve, the outer wall of one side, back to the support, of the sliding sleeve is connected with a nut, the front cantilever is rotatably connected with a lead screw which is parallel to the guide post, the lower end of the lead screw is in threaded connection with the nut, the upper end of the lead screw extends to the upper portion of the front cantilever and is vertically connected with a handle, the sliding sleeve is fixedly connected with an L-shaped base on the outer wall of one side, right facing the support, of the sliding sleeve, and the shooting device is fixedly connected onto the base.
Preferably, the support is connected with a scale parallel to the background plate, the scale is located between the background plate and the shooting device, the four support columns are distributed on two sides of the scale in a pairwise symmetrical mode, and when the support portion is connected to the outer circumferential surface of the yarn package, the scale is suspended above the yarn package and is parallel to the axial direction of the yarn package.
As a preferred scheme, a light supplement lamp is further connected to the support and used for supplementing illumination required by the shooting device during shooting.
The invention has the beneficial effects that: the method for detecting the yarn package surface hairiness index adopts an image sensor, acquires the image of the yarn on the package bus from the tangential direction of the package surface, and identifies and analyzes the hairiness amount in the image through a digital image processing technology, so that the detection of the surface hairiness index of any package is realized. The detection results can be used to evaluate the quality of the hairiness of the yarn package without the need for destructive sampling of the yarn.
The yarn package surface hairiness index detection device provided by the invention adopts the stable connection of the supporting part and the peripheral surface of the outer edge of the yarn package, and after the focal plane is adjusted, the surface hairiness image acquisition can be carried out on the yarn packages with different outer diameters, so that the use is convenient and rapid.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic diagram of a method for detecting a yarn package surface hairiness indicator according to the present invention;
FIG. 2 is a view taken in the direction A of FIG. 1;
FIG. 3 is a yarn surface hairiness image captured by the camera of FIG. 1;
FIG. 4 is a binary image of hairiness;
FIG. 5 is a binary image of a main portion of a yarn package;
FIG. 6 is a schematic structural diagram of an acquisition device for acquiring a hairiness image of a surface of a yarn package according to the present invention;
FIG. 7 is a schematic view of the operation of the acquisition device;
FIG. 8 is a cross-sectional view B-B of FIG. 7;
in FIGS. 1 to 8: 1. support, 2, preceding cantilever, 3, back cantilever, 4, shooting device, 5, background board, 6, supporting part, 601, support column, 7, guide post, 8, sliding sleeve, 9, nut, 10, lead screw, 11, handle, 12, base, 13, scale, 14, light filling lamp, 15, computer.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 5, the method for detecting the amount of hairiness on the surface of a yarn package includes the following steps:
s1, selecting any one bus on the surface of the yarn package 100 as the collecting line M, wherein one bus at the top end of the yarn package 100 which is horizontally placed is used as the collecting line M in the embodiment, and the bus refers to a line on the outer circumferential surface of the yarn package extending along the axial direction of the yarn package;
s2, calibrating at least one shooting area X along the axial direction of the acquisition line M, wherein the shooting areas X are not overlapped;
s3, erecting the camera 4 along the tangential direction of the surface of the yarn package 100, and adjusting the focal plane Q of the camera 4 so that the collection line M is on the focal plane Q; the focal plane Q is a plane on which the image pickup device 4 focuses, and as shown in fig. 1, the focal plane in the present embodiment is a plane surrounded by four points a, b, c, and d.
S4, determining the actual physical length corresponding to each pixel in the image on the focal plane Q acquired by the shooting device 4 by adopting a shooting scale mode;
s5, shooting a yarn surface hairiness image on the collecting line M in at least one shooting area X; in the present embodiment, one shooting region X is selected for shooting, and the shot image is as shown in fig. 2. In the actual detection process, the detection precision can be improved by adding the collected yarn surface hairiness images.
S6, carrying out digital processing on the hairiness image on the surface of each yarn to obtain a two-value image of the hairiness and a two-value image of the main body part of the yarn package. FIG. 3 shows a binary diagram of the hairiness; FIG. 4 is a binary image of a main portion of a yarn package; the yarn package body portion is referred to herein as a wound yarn body. Since only one yarn surface hairiness image is shot in the embodiment, the yarn surface hairiness image is digitally processed. Fig. 3 and 4 show the processing results.
S7, counting the pixel points which are expressed as hairs in all the hair feather binary images, calculating the length of each hair feather edge pixel point, and adding to obtain the edge length values of all the hairs, wherein because each hair feather has two edges, the total length l of the hair feather is obtained by dividing the edge length values of all the hairs feather by 2; carrying out statistical conversion on the total number of black pixel points adjacent to the white pixel points in the binary image of all the yarn package main body parts to obtain the actual length L of the yarn package main body in the image;
s8, calculating a hairiness length value within the axial unit length of the surface of the yarn package according to the formula L/L, namely a hairiness index of the surface of the yarn package;
s9, detecting the yarn package with the surface hairiness quality meeting the requirement according to the steps S1-S8, and obtaining standard yarn package surface hairiness index parameters;
and S10, detecting the yarn package to be detected according to the steps S1-S8, and comparing the obtained actually-measured hairiness quantity index with the standard parameter so as to judge the quality condition of the surface hairiness of the yarn package to be detected.
When step S7 is executed, the method for calculating the length of the feather edge pixel point in step S7 is as follows:
step 1: inputting a hairiness binary image, and setting the pixel value of an edge position as 1 and the pixel value of a non-edge position as 0;
step 2: scanning all pixels in the hairiness binary image in sequence, if the pixel value B (x, y) of a certain pixel point (x, y) is 1, finding a pixel point with the pixel value of 1 from eight neighborhood position pixel points of B (x +1, y), B (x-1, y), B (x, y +1), B (x +1, y +1), B (x-1, y +1), B (x +1, y-1) and B (x-1, y-1), calculating the distance between every two pixel points with the pixel value of 1 including the pixel point (x, y), dividing the maximum value by 2, and recording the distance as the length of the edge where the pixel point (x, y) is located.
Wherein, let zwFor each pixel the actual physical length, z, corresponding to the horizontal directionhThe actual physical length (z) corresponding to the vertical direction of each pixelw，zhObtained through the above step S4), and any two of the above nine pixel points (a) whose pixel values are 11,b1)、 (a2,b2) The distance d between them is calculated by:
Figure DEST_PATH_IMAGE002
and step 3: and counting the sum of the lengths of the edges of all the pixels with the pixel value of 1 to obtain the length values of the edges of all the hairiness.
In this embodiment, the specific method in step S4 is to place the ruler on the focal plane Q where the acquisition line M is located, take the image of the ruler by the photographing device 4, perform digital processing to obtain a pixel map of the ruler, and calculate the actual physical length and width corresponding to each pixel according to the scale on the ruler.
In this embodiment, the specific method of step S6 is:
s601, converting the yarn surface hairiness image obtained in the step S5 into a pixel map;
s602, dividing the yarn package main body and the rest parts in the pixel diagram by adopting an Otsu method to obtain a binary diagram of the yarn package main body part;
s603: and processing the pixel map of the yarn surface hairiness image by adopting a Canny edge algorithm to obtain a hairiness binary image.
As a preferable mode, when the image pickup device 4 is installed, the lens direction axis W of the image pickup device 4 is made to be in contact with the outer peripheral surface of the yarn package 100, so that the hairiness pixel accuracy is further improved. And a background plate 5 can be arranged opposite to the shooting device, so that the collecting line M is positioned between the background plate 5 and the shooting device 4, and a white background or a pure color background is adopted, so that the contrast between the hairiness in the hairiness image and the background is higher, the hairiness image is clearer, and the digital processing of the hairiness image is more convenient. The hairiness detection accuracy is improved. The background plate 5 may be a non-light-emitting plate with uniform color, or a light-emitting plate with uniform color.
Example 2:
as shown in fig. 6 to 8, the device for detecting the amount of the hairiness on the surface of the yarn package comprises a frame 1 and a computer 15, wherein the frame 1 is connected with a front suspension arm 2 and a rear suspension arm 3 at two ends thereof, the front suspension arm 2 is connected with a camera 4, the rear suspension arm 3 is connected with a background plate 5, the background plate 5 is opposite to a lens of the camera 4, the frame 1 is provided at a lower end thereof with a support part 6 for connecting the outer surface of the yarn package 100, and when the support part 6 is connected to the outer surface of the yarn package 100, the axial line of the lens is tangent to the outer surface of the yarn package 100. The camera 4 is detachably connected to the computer 15, and the camera 4 can transmit the photographed image to the computer 15.
In this embodiment, the support 1 is a rectangular frame, the support portion 6 includes four support pillars 601 connected to four top corners of the support in a one-to-one correspondence manner, and the four support pillars 601 are parallel to each other and perpendicular to a plane where the support is located, and two of the four support pillars 601 are respectively disposed on two sides of the front cantilever 2.
In practice, the specific shape of the stand 1 is not strictly limited, and may be a special-shaped frame, a ring frame, or the like, besides a rectangular frame, as long as the stand can be effectively and stably connected with the support portion 6 without affecting the image captured by the image capturing device 4.
In this embodiment, the front suspension arm 2 and the rear suspension arm 3 are respectively fixedly connected to the centers of two parallel side edges of the support, the free end of the front suspension arm 2 extends in a direction away from the support 1, the free end of the rear suspension arm 3 also extends in a direction away from the support 1, and the distance between the two support columns 601 on the same side of the front suspension arm 2 is smaller than the minimum diameter of the yarn package 100, so that the four support columns 601 can be supported on the outer circumferential surface of the yarn package 100.
In this embodiment, as an optimized solution, the free end of the front cantilever 2 is connected with a guide post 7 extending downward and parallel to the support post 601, a sliding sleeve 8 is slidably sleeved outside the guide post 7, the sliding sleeve 8 can only slide axially along the guide post 7, but cannot rotate relative to the guide post 7, for this reason, the cross section of the guide post 7 is preferably a regular polygon, and of course, any other structure capable of limiting the sliding sleeve 8 to rotate around the guide post 7 is possible. The sliding sleeve 8 is connected with a nut 9 on the outer wall of one side back to the support 1, the front cantilever 2 is connected with a lead screw 10 parallel to the guide post 7 in a rotating mode, the lower end of the lead screw 10 is connected with the nut 9 in a threaded mode, the upper end of the lead screw 10 extends to the upper portion of the front cantilever 2 and is vertically connected with a handle 11, the sliding sleeve 8 is over fixedly connected with an L-shaped base 12 on the outer wall of one side of the support 1, and the shooting device 4 is fixedly connected onto the base 12. Therefore, the screw rod 10 can be driven to rotate by rotating the handle 11, the sliding sleeve 8 is driven to slide up and down along the guide post 7 by the rotation of the screw rod 10, and then the shooting device 4 is driven to move up and down, so that the shooting device 4 can adjust the height of the axis of the lens direction.
In this embodiment, it is also preferable that a scale 13 parallel to the background plate 5 is connected to the holder 1, the scale 13 is located between the background plate 5 and the camera 4, the four support columns 601 are symmetrically distributed on both sides of the scale 13, and when the support part 6 is connected to the outer circumferential surface of the yarn package 100, the scale 13 is suspended above the yarn package 100 and is parallel to the axial direction of the yarn package 100. Since the four support columns 601 are respectively supported on the outer circumferential surface of the yarn package 100, and the lengths of the four support columns 601 are the same, the four support columns 601 are symmetrically distributed on two sides of the axis of the yarn package 100, and as long as the lens direction axis W of the photographing device 4 is perpendicular to the support columns 601, the scale 13 is located on the focal plane Q of the photographing device 4.
In this embodiment, a light supplement lamp 14 is preferably connected to the support 1 for supplementing the illumination required by the photographing device 4 during photographing.
The working process of the invention is as follows: as shown in fig. 7 and 8, the four support columns 601 of the collecting device are supported on the outer circumferential surface of the yarn package 100, the height of the photographing device 4 is adjusted by driving the lead screw 10 through the handle 11 so that the lens direction axis W of the photographing device 4 is tangent to the outer circumferential surface of the yarn package 100, and the focal plane Q of the photographing device 4 is adjusted so that the focal plane Q is located at the tangent point of the lens direction axis W and the outer circumferential surface of the yarn package 100, thereby collecting the surface hairiness image of the yarn package 100. The collected hair image is the hair image collected in step S5 in embodiment 1.
After the primary focusing (adjustment of the focal plane), the device is applicable to yarn packages 100 of different diameters, and the height of the imaging device 4 can be adjusted as necessary to make the lens direction axis W of the imaging device 4 tangent to the outer circumferential surface of the yarn package 100.
The photographing device 4 in the present invention includes, but is not limited to, a camera.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims (9)

1. The method for detecting the amount index of the hairiness on the surface of the yarn package is characterized by comprising the following specific steps of:
s1, selecting any bus on the surface of the yarn package as a collecting line;
s2, calibrating at least one shooting area along the axial direction of the collecting line, wherein the shooting areas are not overlapped;
s3, erecting a shooting device along the tangential direction of the surface of the yarn package, and adjusting the focal plane of the shooting device to enable the collection line to be positioned on the focal plane;
s4, determining the actual physical length corresponding to each pixel in the image on the focal plane acquired by the shooting device by adopting a calibration detection device;
s5, shooting a hairiness image on the surface of the yarn on the collecting line in at least one shooting area;
s6, carrying out digital processing on the hairiness image on the surface of each yarn to obtain a two-value image of the hairiness and a two-value image of the main body part of the yarn package;
s7, counting the pixel points which are expressed as hairs in all the hair feather binary images, and obtaining the total length l of the hairs by calculating the length of the pixel points at the edge of each hair feather and dividing the sum by 2; carrying out statistical conversion on the total number of black pixel points adjacent to the white pixel points in the binary image of all the yarn package main body parts to obtain the actual length L of the yarn package main body in the image;
s8, calculating the hairiness length value in the axial unit length of the surface of the yarn package according to the formula L/L, namely the hairiness index of the surface of the yarn package.
2. The method for detecting the amount of the hairiness on the surface of the yarn package according to claim 1, wherein the step S4 is implemented by positioning a ruler on a focal plane where the collection line is located, capturing the image by an image capturing device, performing digital processing to obtain a pixel map of the ruler, and calculating the actual physical length and width corresponding to each pixel according to the scale on the ruler.
3. The method for detecting the amount of yarn package surface hairiness according to claim 1, wherein the step S6 is a specific method comprising:
s601, converting the yarn surface hairiness image obtained in the step S5 into a pixel map;
s602, dividing the yarn package main body and the rest parts in the pixel diagram by adopting an Otsu method to obtain a binary diagram of the yarn package main body part;
s603: and processing the pixel map of the yarn surface hairiness image by adopting a Canny edge algorithm to obtain a hairiness binary image.
4. The yarn package surface hairiness index detection device comprises a support (1) and a computer (15), and is characterized in that two ends of the support (1) are respectively connected with a front cantilever (2) and a rear cantilever (3), the front cantilever (2) is connected with a shooting device (4), the rear cantilever (3) is connected with a background plate (5), the background plate (5) is opposite to a lens of the shooting device (4), the lower end of the support (1) is provided with a supporting part (6) used for being connected with the outer surface of a yarn package (100), when the supporting part (6) is connected onto the outer circumferential surface of the yarn package (100), the axis of the lens direction is tangent to the outer circumferential surface of the yarn package (100), the shooting device (4) is detachably connected with the computer (15), and the shooting device (4) can send shot images to the computer (15).
5. The yarn package surface hairiness index detection device according to claim 4, wherein the support (1) is a rectangular frame, the support portion (6) comprises four support columns (601) connected to four top corners of the support in a one-to-one correspondence manner, and the four support columns (601) are parallel to each other and perpendicular to a plane where the support is located, and two support columns (601) are arranged on two sides of the front cantilever (2).
6. The yarn package surface hairiness index detecting device according to claim 5, wherein the front suspension arm (2) and the rear suspension arm (3) are respectively and fixedly connected to the centers of two parallel side edges of the bracket, the free end of the front suspension arm (2) extends in a direction away from the bracket (1), the free end of the rear suspension arm (3) also extends in a direction away from the bracket (1), and the distance between two support columns (601) on the same side of the front suspension arm (2) is smaller than the minimum diameter of the yarn package (100).
7. The yarn package surface hairiness index detecting device according to claim 6, the free end of preceding cantilever (2) is connected with guide post (7) that a downwardly extending just is on a parallel with support column (601), a sliding sleeve (8) has been cup jointed in the outside slip of guide post (7), be connected with a nut (9) on one side outer wall of sliding sleeve (8) back to support (1), it is connected with lead screw (10) that a is on a parallel with guide post (7) to rotate on preceding cantilever (2), lead screw (10) lower extreme and nut (9) threaded connection, lead screw (10) upper end extends to preceding cantilever (2) top and is connected with handle (11) perpendicularly, sliding sleeve (8) just are "L" shape base (12) to fixedly connected with on one side outer wall of support (1), shoot device (4) fixed connection on base (12).
8. The yarn package surface hairiness index detecting device according to claim 7, wherein a scale (13) parallel to the background plate (5) is connected to the holder (1), the scale (13) is located between the background plate (5) and the camera (4), four support columns (601) are symmetrically distributed on both sides of the scale (13), and the scale (13) is suspended above the yarn package (100) and is parallel to the axial direction of the yarn package (100) when the support portion (6) is attached to the outer circumferential surface of the yarn package.
9. The yarn package surface hairiness index detection device according to claim 4, wherein a light supplement lamp (14) is further connected to the support (1) and used for supplementing light required by the shooting device (4) in shooting.
CN202111666697.2A 2021-12-31 2021-12-31 Yarn package surface hairiness index detection method and device Pending CN114387237A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115035110A (en) * 2022-08-10 2022-09-09 南通永安纺织有限公司 Yarn hairiness quantitative detection method based on pit cutting and chain code tracking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115035110A (en) * 2022-08-10 2022-09-09 南通永安纺织有限公司 Yarn hairiness quantitative detection method based on pit cutting and chain code tracking

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