Fuzzing Degree Testing Device for Raised Fabrics

Abstract

The present application provides a device for testing the degree of fuzzing of a fleece fabric, which includes a leveling base, a support assembly, a sample-carrying rotating box, an adsorption assembly and a control module. The support assembly is fixedly arranged on the leveling base. The sample-carrying rotating box is rotatably connected to the support assembly and is used for accommodating and tumbling the fabric sample. The adsorption assembly is used for adsorbing and collecting the fluff fibers dropped by the fabric sample during tumbling. The control module is used for: obtaining the mass of the fluff fibers; obtaining a photo of the fluff fibers; performing grayscale processing on the photo to obtain a first image; determining the number of fuzzing and the fuzzing density according to the pixel distribution of the first image; and determining the degree of fuzzing according to the initial mass of the fabric sample, the mass of the fluff fibers, the number of fuzzing and the fuzzing density, thereby overcoming the problems of single evaluation index and dependence on the subjective judgment of testers in the traditional testing method, and effectively improving the reliability and accuracy of the test results.

Description

Technical Field

[0001] This application belongs to the technical field of fabric detection, and more specifically, relates to a device for testing the fuzzing degree of raised fabrics. Background Art

[0002] A raised fabric is a fabric with fine fluff on its surface. Due to its unique softness, warmth retention, and delicate, smooth, shiny, high-class, and luxurious appearance texture, it is increasingly favored by consumers.

[0003] With the wide application of raised fabrics, a series of testing methods have been established to characterize the fuzzing degree of pile fabrics, such as tape peeling method, friction adhesion method, Martindale method, fabric weight loss method after washing, etc. However, the evaluation indexes of the above testing methods are single and rely on the subjective judgment of testers, which is likely to lead to a large deviation between the test results and the actual experience. Summary of the Invention

[0004] The purpose of this application is to provide a device for testing the fuzzing degree of raised fabrics, aiming to solve the problems that the evaluation indexes of the current testing methods for characterizing the fuzzing degree of pile fabrics are single and rely on the subjective judgment of testers, which is likely to lead to a large deviation between the test results and the actual experience.

[0005] To achieve the above purpose, the technical solution adopted in this application is to provide a device for testing the fuzzing degree of raised fabrics, including a leveling base, a support assembly, a sample-carrying rotating box, an adsorption assembly, and a control module. The support assembly is fixedly arranged on the leveling base, the sample-carrying rotating box is rotatably connected to the support assembly for accommodating and tumbling fabric samples, the adsorption assembly is used for adsorbing and collecting the fluff fibers dropped by the fabric samples during tumbling, and the control module is used for:

[0006] Obtaining the mass of the fluff fibers;

[0007] Obtaining a photo of the fluff fibers;

[0008] Performing grayscale processing on the photo to obtain a first image;

[0009] Determining the fuzzing quantity and fuzzing density according to the pixel distribution of the first image;

[0010] Determining the fuzzing degree according to the initial mass of the fabric sample, the mass of the fluff fibers, the fuzzing quantity, and the fuzzing density.

[0011] In one embodiment, the control module is used for determining the fuzzing quantity and fuzzing density according to the pixel distribution of the first image, specifically including:

[0012] Performing histogram equalization processing on the first image to obtain a second image;

[0013] Perform brightness enhancement processing on the second image to obtain a third image;

[0014] Perform binary conversion processing on the third image to obtain a fourth image;

[0015] Perform dilation processing on the fourth image to obtain a fifth image;

[0016] Perform denoising processing on the fifth image to obtain a sixth image;

[0017] Count the number of fluff fibers in the sixth image to determine the amount of hair loss.

[0018] In one embodiment, the control module is used to determine the amount of hair loss and the hair loss density according to the pixel distribution of the first image, and specifically further includes:

[0019] Calculate the area of the foreground pixels in the fourth image;

[0020] Determine the hair loss density according to the area of the foreground pixels and the preset pixel area.

[0021] In one embodiment, the control module is used to determine the degree of hair loss according to the initial mass of the fabric sample, the mass of the fluff fibers, the amount of hair loss, and the hair loss density, and specifically includes:

[0022] Determine the hair loss mass grade according to the initial mass of the fabric sample and the mass of the fluff fibers;

[0023] Determine the hair loss quantity grade according to the amount of hair loss;

[0024] Determine the hair loss density grade according to the hair loss density;

[0025] Determine the degree of hair loss according to the hair loss mass grade, the hair loss quantity grade, and the hair loss density grade.

[0026] In one embodiment, the support assembly includes a first bracket and a second bracket, the sample-carrying rotary box includes a rotary box main body, a first rotating shaft, a second rotating shaft, a first shaft seat, a second shaft seat, and a first driving unit. The first bracket and the second bracket are arranged at intervals on the leveling base. The first shaft seat and the second shaft seat are fixedly arranged on opposite sides of the rotary box main body along the arrangement direction of the first bracket and the second bracket. One end of the first rotating shaft is fixedly connected to the first shaft seat, and the other end is rotatably connected to the first bracket. One end of the second rotating shaft is fixedly connected to the second shaft seat, and the other end is rotatably connected to the second bracket. The first driving unit is fixedly arranged on the second bracket and rotatably connected to the second rotating shaft. The first driving unit is used to rotate the rotary box main body to a rotating state or to stop the rotary box main body to a stationary state.

[0027] In one embodiment, the first driving unit includes a driving motor and a deceleration element. The driving motor is fixedly mounted on the second bracket and is rotationally connected to the deceleration element. The deceleration element is rotationally connected to the second rotating shaft. The control module is communicatively connected to the driving motor.

[0028] In one embodiment, the sample transfer box further comprises a plurality of special-shaped billiard balls arranged inside the transfer box body, and the special-shaped billiard balls are special-shaped silica gel balls or special-shaped rubber balls.

[0029] In one embodiment, the adsorption assembly includes a first electrostatic suction cup, a second electrostatic suction cup and a second driving unit. A fixing groove and a switch box door are respectively provided on opposite sides of the rotating box body. The fixing groove is located on the outer side of the rotating box body. The first electrostatic suction cup is embedded in the fixing groove and is directly opposite to the inner side of the corresponding position of the rotating box body to form an electrostatic adsorption area. The second driving unit is movably arranged on the leveling base and drives the second electrostatic suction cup;

[0030] When the rotating box body is in a rotating state, the first electrostatic suction cup is used to absorb and collect the fluff fibers of the fabric sample to the electrostatic adsorption area. When the rotating box body is in a stationary state, the second driving unit is used to drive the second electrostatic suction cup along the fixed groove and the arrangement direction of the switch box door until the second electrostatic suction cup enters the rotating box body through the switch box door and reaches the first workstation. The second electrostatic suction cup is then adjacent to the electrostatic adsorption area, and the second electrostatic suction cup is correspondingly used to absorb and collect the fluff fibers located on the electrostatic adsorption area.

[0031] In one of the embodiments, a buffer abutment gasket is provided on the edge ring of the second electrostatic suction cup, and a buffer abutment area is provided on the outer edge ring of the electrostatic adsorption area; when the rotating box body is in a stationary state and the second electrostatic suction cup is located in the first working position, the buffer abutment gasket is elastically abutted between the second electrostatic suction cup and the buffer abutment area.

[0032] In one embodiment, it also includes a shockproof base and a balance assembly, the leveling base is provided with a hollow area, the shockproof base is located in the hollow area and avoids the leveling base, and the balance assembly is fixedly arranged on the shockproof base;

[0033] When the rotating box body is in a stationary state, the fixed grooves and the switch box door are arranged at intervals in the vertical direction, and the switch box door intervals are located below the fixed grooves, and the balance assembly intervals are located below the switch box door. The second driving unit is used to drive the second electrostatic suction cup in the vertical direction until the second electrostatic suction cup enters the rotating box body through the switch box door and reaches the first station. After the second electrostatic suction cup adsorbs and collects the fluff fibers located in the electrostatic adsorption area, the second driving unit is used to drive the second electrostatic suction cup in the vertical direction until the second electrostatic suction cup leaves the rotating box body through the switch box door and reaches the second station. The second electrostatic suction cup is then supported on the balance assembly, and the balance assembly is used to weigh the initial mass of the fabric sample and the mass of the fluff fibers accordingly.

[0034] In one embodiment, the second driving unit includes a telescopic bracket and a support tray, the telescopic bracket is fixedly arranged at the edge of the hollow area and avoids the balance assembly in the vertical direction, the telescopic bracket is driven to connect to the support tray in the vertical direction, and the support tray is located above the balance assembly, the second electrostatic chuck is fixedly arranged on the support tray, and the control module is communicatively connected to the telescopic bracket, the first electrostatic chuck and the second electrostatic chuck;

[0035] When the rotating box body is in a stationary state, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup enter the rotating box body through the switch box door and the second electrostatic suction cup reaches the first station. After the second electrostatic suction cup adsorbs and collects the fluff fibers located in the electrostatic adsorption area, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup leave the rotating box body through the switch box door and the second electrostatic suction cup reaches the second station. The telescopic bracket and the support tray are then relatively separated in the vertical direction, and the telescopic bracket is located below the support tray. The support tray and the second electrostatic suction cup are then supported on the balance assembly together.

[0036] In one of the embodiments, a plug-in groove is provided at the bottom of the support tray, and the telescopic bracket is provided with a plug-in guide column adapted to the plug-in groove to form a plug-in fit along the vertical direction.

[0037] In one of the embodiments, it also includes a camera assembly, which is movably arranged on the second bracket; the rotating box body is in a stationary state, and when the second electrostatic suction cup adsorbs and collects the fluff fibers located in the electrostatic adsorption area, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup leave the rotating box body through the switch box door and the second electrostatic suction cup reaches the third station or the second station, and the camera assembly is correspondingly used to take pictures of the fluff fibers located on the second electrostatic suction cup.

[0038] In one embodiment, the camera assembly includes a third driving unit and a camera body, the third driving unit is movably disposed on the second bracket and is driven to connect to the camera body in a horizontal direction, and the control module is communicatively connected to the third driving unit and the camera body; when the rotating box body is in a stationary state, when the second electrostatic suction cup reaches the third station or the second station, the third driving unit is correspondingly used to drive the camera body in a horizontal direction until the camera body is suspended above the second electrostatic suction cup.

[0039] In one of the embodiments, it also includes a protective shell, which is fixedly mounted on the leveling base and covers the second bracket. The first drive unit and the third drive unit are both located inside the protective shell. The protective shell also has a first opening that avoids the movement trajectory of the second rotating shaft and a second opening that avoids the movement trajectory of the third drive unit.

[0040] In one embodiment, the control module is fixedly arranged on the second bracket and located inside the protective housing. The protective housing is further provided with a display screen and operation buttons, and the control module is communicatively connected to the display screen and the operation buttons respectively.

[0041] In one embodiment, the leveling base includes a base body, leveling feet and a level. The leveling feet are threadedly connected to the bottom of the base body, and the level is fixedly arranged on the top of the base body.

[0042] The beneficial effect of the fuzzing degree testing device for fleece fabrics provided by this application is that, compared with the prior art, the above fuzzing degree testing device for fleece fabrics realizes the tumbling and collision treatment of fabric samples by rotating the sample-carrying rotating box, and can better simulate the complex stress conditions suffered by fabric samples during actual use and wearing. On this basis, the adsorption component is used to adsorb and collect the fluff fibers dropped by the fabric samples during the tumbling process, and the control module is used to obtain the initial mass of the fabric samples, the mass of the fluff fibers and the photos of the fluff fibers, so as to quantitatively reflect the weight loss situation of the fabric samples, as well as the distribution and quantity situation of the fluff fibers. Furthermore, the fuzzing degree of the fleece fabric can be comprehensively determined based on the mass, fuzzing quantity and fuzzing density of the fluff fibers, overcoming the problems of single evaluation index and dependence on the subjective judgment of testers in traditional testing methods, and effectively improving the reliability and accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0044] Figure 1 It is a schematic structural diagram of the fuzzing degree testing device for fleece fabrics provided by an embodiment of the present application;

[0045] Figure 2 For Figure 1 the main view structural diagram of the fuzzing degree testing device for fleece fabrics shown;

[0046] Figure 3 For Figure 2 the main view structural diagram of the fuzzing degree testing device for fleece fabrics shown with the protective housing omitted;

[0047] Figure 4 For Figure 1 the top view structural diagram of the fuzzing degree testing device for fleece fabrics shown when the rotating box body is in a stationary state;

[0048] Figure 5 For Figure 1 The upward view structural schematic diagram of the transfer box main body in a stationary state in the fluffing fabric fuzzing degree testing device shown;

[0049] Figure 6 For Figure 1 The position relationship schematic diagram of the electrostatic adsorption area and the buffer abutment area of the transfer box main body in the fluffing fabric fuzzing degree testing device shown;

[0050] Figure 7 For Figure 1 The structural schematic diagram of part of the adsorption components in the fluffing fabric fuzzing degree testing device shown;

[0051] Figure 8 For Figure 7 The partial enlarged structural schematic diagram of the part of the adsorption components shown.

[0052] In the figure: 10, fluffing fabric fuzzing degree testing device; 100, leveling base; 110, base main body; 111, hollow area; 120, leveling foot; 130, level gauge; 200, support assembly; 210, first bracket; 220, second bracket; 300, sample-carrying transfer box; 310, transfer box main body; 311, fixed groove; 312, switch box door; 313, electrostatic adsorption area; 314, buffer abutment area; 320, first rotating shaft; 330, second rotating shaft; 340, first shaft seat; 350, second shaft seat; 360, first driving unit; 361, driving motor; 362, deceleration element; 400, adsorption assembly; 410, first electrostatic chuck; 420, second electrostatic chuck; 421, buffer abutment washer; 430, second driving unit; 431, telescopic bracket; 432, support tray; 500, control module; 600, shockproof base; 700, balance assembly; 800, camera assembly; 810, third driving unit; 820, camera main body; 900, protective housing; 910, display screen; 920, operation button. Detailed implementation manners

[0053] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0055] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0057] Please refer to Figure 1 、 Figure 2 and Figure 3 for an illustration of a device 10 for testing the fuzzing degree of a fleece fabric provided by an embodiment of the present application. The above-mentioned device 10 for testing the fuzzing degree of a fleece fabric includes a leveling base 100, a support assembly 200, a sample-carrying rotating box 300, an adsorption assembly 400, and a control module 500. Among them, the support assembly 200 is fixedly arranged on the leveling base 100, and the sample-carrying rotating box 300 is rotatably connected to the support assembly 200 for accommodating and tumbling a fabric sample (not shown in the figure), thereby forming an impact effect on the fabric sample to simulate the complex stress conditions that the fabric sample undergoes during actual wearing. The adsorption assembly 400 is used for adsorbing and collecting the fluff fibers (not shown in the figure) dropped by the fabric sample during the tumbling process. The control module 500 is correspondingly used for:

[0058] Obtaining the mass of the fluff fibers;

[0059] Obtaining a photo of the fluff fibers;

[0060] Performing grayscale processing on the photo to obtain a first image;

[0061] Determining the fuzzing quantity and fuzzing density according to the pixel distribution of the first image;

[0062] Determining the fuzzing degree according to the initial mass of the fabric sample, the mass of the fluff fibers, the fuzzing quantity, and the fuzzing density.

[0063] It should be noted that in this embodiment, the above control module 500 is a module with control capabilities and capable of data processing. Exemplarily, the control module 500 can be a Central Processing Unit (CPU), or a Micro Controller Unit (MCU), or a module with equivalent functions.

[0064] It should be noted that in this embodiment, the initial mass of the above fabric sample is the mass before the fabric sample tumbles. By obtaining the initial mass of the fabric sample and the mass of the fluff fibers, the control module 500 can quantitatively reflect the weight loss of the flocked fabric due to hair loss. By obtaining the photos of the fluff fibers, information such as the morphology, distribution, and quantity of the fallen fluff fibers can be saved in the form of images, laying a data foundation for steps such as image processing and statistical analysis.

[0065] Furthermore, in this embodiment, the above control module 500 can perform grayscale processing on the photos using MATLAB image processing software to obtain a first image. Compared with the original multi-channel color photos, the first image obtained by grayscale processing only retains the single-channel brightness information, which can make the brightness difference between the fluff fibers and the background more intuitive. Furthermore, it can be easier to distinguish the fluff fibers from the background through methods such as threshold segmentation and edge detection, which is beneficial for subsequent image processing and provides a data foundation for counting the number of hair loss and the hair loss density, etc.

[0066] Furthermore, in this embodiment, the above control module 500 determining the number of hair loss and the hair loss density according to the pixel distribution of the first image can include: performing histogram equalization processing on the first image to enhance the contrast of the first image and obtain a second image; performing brightness enhancement processing on the second image to obtain a third image; performing binary conversion processing on the third image to obtain a fourth image; performing dilation processing on the fourth image to obtain a fifth image; performing denoising processing on the fifth image to obtain a sixth image; counting the number of fluff fibers in the sixth image to determine the number of hair loss.

[0067] Furthermore, in this embodiment, the above control module 500 performing brightness enhancement processing on the second image can include: performing an addition operation with the same amplitude on each pixel of the second image numerically to increase the overall brightness of the second image, facilitating subsequent observation or analysis.

[0068] Further, in this embodiment, the binary conversion process of the third image by the control module 500 may include: comparing the gray value of each pixel in the third image with a threshold value, determining the pixels with gray values greater than the threshold value as 1 (foreground pixels), and determining the pixels with gray values less than or equal to the threshold value as 0 (background pixels). Thus, a binary image matrix (fourth image) composed of 0 and 1 can be obtained. To facilitate the rapid positioning of fluff fibers and improve the recognition rate of fluff fibers, the fluff fibers (foreground pixels) can be represented in white (1), and the background can be represented in black (0). If the control module 500 represents the fluff fibers (foreground pixels) in black (0) and the background in white (1) during the binary conversion process of the third image, an inversion operation can be performed on the third image to improve the recognition rate of fluff fibers.

[0069] Further, in this embodiment, the dilation process of the fourth image by the control module 500 may include: widening the boundary of the foreground (fluff fibers) in the fourth image by a distance of one pixel or multiple pixels to fill the holes or breaks in the foreground (fluff fibers), thereby increasing the brightness of the foreground pixels (fluff fibers); specifically, the kernel function can be used to scan at each pixel position in the fourth image. When the center of the kernel function aligns with a certain pixel in the fourth image, if there is an overlap between the foreground pixels (1) in the kernel function and the scanned area, the corresponding central pixel will be assigned as a foreground pixel (1).

[0070] Further, in this embodiment, the denoising process of the fifth image by the control module 500 may include: processing the fifth image using a 3*3 median filter to remove the high-frequency noise in the fifth image, weakening single pixel points with significantly higher or lower brightness or gray values such as "isolated bright spots" or "black dots" while retaining the fiber edges and morphological features, which can reduce the interference with subsequent recognition and counting, and further improve the accuracy of subsequent fluff fiber statistics.

[0071] Further, in this embodiment, the control module 500 may further determine the shedding quantity and shedding density according to the pixel distribution of the first image by: calculating the area of the foreground pixels in the fourth image; determining the shedding density according to the area of the foreground pixels and the preset pixel area; specifically, the control module 500 can use the bwarea function to estimate the area of the foreground pixels (fiber fluff) in the fourth image, and then obtain the foreground ratio according to the area of the foreground pixels and the preset pixel area, and determine the foreground ratio as the shedding density.

[0072] For example, if a high-definition camera with a maximum resolution of 10000×10000 pixels is used to take a photo of fluff fibers, the preset pixel area is 1×10 8pixel, when the area of the foreground pixels in the fourth image is calculated to be 1×10 6 , the foreground ratio can be obtained as 1% according to the first formula, and the foreground ratio is determined as the fuzzing density. This indicates that in the fourth image, some pixels are detected as fluff fibers (foreground), and the remaining 99% of the pixels are the background.

[0073] (1);

[0074] Among them, A represents the area of the foreground pixels, A 1 represents the preset pixel area.

[0075] Further, in this embodiment, the above control module 500 determining the fuzzing degree according to the initial mass of the fabric sample, the mass of the fluff fibers, the number of fuzzing, and the fuzzing density may include: determining the fuzzing mass grade according to the initial mass of the fabric sample and the mass of the fluff fibers; determining the fuzzing number grade according to the number of fuzzing; determining the fuzzing density grade according to the fuzzing density; and determining the fuzzing degree according to the fuzzing mass grade, the fuzzing number grade, and the fuzzing density grade.

[0076] Further, in this embodiment, the above control module 500 determining the fuzzing mass grade according to the initial mass of the fabric sample and the mass of the fluff fibers may include: calculating the fabric mass loss rate according to the initial mass of the fabric sample, the mass of the fluff fibers, and the second formula, and determining the fuzzing mass grade according to the fabric mass loss rate.

[0077] (2);

[0078] Among them, m represents the mass of the fluff fibers, and m1 represents the initial mass of the fabric sample.

[0079] The corresponding relationship between the fabric mass loss rate and the fuzzing mass grade is shown in Table 1.

[0080] Table 1

[0081]

[0082] It should be noted that the corresponding relationship between the fabric mass loss rate and the fuzzing mass grade can be adjusted according to actual applications, and Table 1 is only an example.

[0083] The corresponding relationship between the number of fuzzing and the fuzzing number grade is shown in Table 2.

[0084] Table 2

[0085]

[0086] It should be noted that the correspondence between the amount of lint shedding and the lint shedding amount level can be adjusted according to actual applications, and Table 2 is only for illustration.

[0087] The correspondence between the lint shedding density and the lint shedding density level is shown in Table 3.

[0088] Table 3

[0089]

[0090] It should be noted that the correspondence between the lint shedding density and the lint shedding density level can be adjusted according to actual applications, and Table 3 is only for illustration.

[0091] Furthermore, in this embodiment, the control module 500 determining the lint shedding degree according to the lint shedding quality level, the lint shedding amount level, and the lint shedding density level may include: taking the average value of the two worst levels among the lint shedding quality level, the lint shedding amount level, and the lint shedding density level as the lint shedding level. In the case where the average value is not an integer, round the average value. By showing the two worst-performing indicators and taking the average, it can more truly reflect the deficiencies of the product at the weakest point of the lint shedding performance and avoid one indicator covering up possible lint shedding problems in the other two.

[0092] The beneficial effect of the lint shedding degree testing device 10 for fleece fabrics provided by this application is that, compared with the prior art, the above-mentioned lint shedding degree testing device 10 for fleece fabrics realizes the tumbling and collision treatment of the fabric sample by rotating the sample-carrying turntable 300, can better simulate the complex stress conditions that the fabric sample is subjected to during actual use and wearing, and on this basis, adsorbs and collects the fluff fibers dropped by the fabric sample during the tumbling process through the adsorption assembly 400, and obtains the initial mass of the fabric sample, the mass of the fluff fibers, and the photos of the fluff fibers through the control module 500, which can quantitatively reflect the weight loss situation of the fabric sample, as well as the distribution, quantity, and density of the fluff fibers, and then can comprehensively determine the lint shedding degree of the fleece fabric based on the mass of the fluff fibers, the amount of lint shedding, and the lint shedding density, overcoming the problems of single evaluation indicators and relying on the subjective judgment of testers in traditional testing methods, and effectively improving the reliability and accuracy of the test results.

[0093] It should be noted that before the test operation, one or more fabric samples with appropriate sizes need to be cut from the fleece fabric specimen. The fabric samples are in a square or circular structure, and the outer peripheral sides of the fabric samples are sealed based on standard requirements, so as to prevent wear or dispersion at the outer peripheral side positions of the fabric samples during the tumbling process, and avoid the fluff fibers dropping from the outer peripheral side positions of the fabric samples and ultimately affecting the test results.

[0094] Please refer to Figure 1, in this embodiment, the leveling base 100 includes a base body 110, leveling feet 120 and a level 130. Among them, the leveling feet 120 are threadedly connected to the bottom of the base body 110, and the level 130 is fixedly arranged on the top of the base body 110. The leveling feet 120 are used to cooperate with the level 130 to adjust the base body 110 to be in a horizontal state, thereby providing a stable and controllable test environment, facilitating the fabric sample to remain stable when placed in the sample-carrying rotating box 300, and reducing the impact on the fabric sample except for the rotation of the sample-carrying rotating box 300.

[0095] Specifically, in this embodiment, the base body 110 is of a rectangular parallelepiped structure, and the four leveling feet 120 are respectively threadedly connected to the four corner positions at the bottom of the base body 110, and the level 130 is fixedly arranged at one corner position on the top of the base body 110.

[0096] Please refer to Figure 2 and Figure 3 , in this embodiment, the support assembly 200 includes a first bracket 210 and a second bracket 220, and the sample-carrying rotating box 300 includes a rotating box body 310, a first rotating shaft 320, a second rotating shaft 330, a first shaft seat 340, a second shaft seat 350 and a first driving unit 360. Among them, the first bracket 210 and the second bracket 220 are fixedly arranged on the top of the base body 110 and are arranged at intervals relative to each other. The first shaft seat 340 and the second shaft seat 350 are respectively fixedly arranged on the opposite sides of the rotating box body 310 along the arrangement direction of the first bracket 210 and the second bracket 220. One end of the first rotating shaft 320 is fixedly connected to the first shaft seat 340, and the opposite end is rotatably connected to the first bracket 210. One end of the second rotating shaft 330 is fixedly connected to the second shaft seat 350, and the opposite end is rotatably connected to the second bracket 220. The first driving unit 360 is fixedly arranged on the second bracket 220 and rotatably connects the second rotating shaft 330. The first driving unit 360 is used to rotate the rotating box body 310 to make the rotating box body 310 in a rotating state, or to stop the rotating box body 310 to make the rotating box body 310 in a stationary state; it should be noted that the rotating box body 310 being in a rotating state means that the rotating box body 310 rotates at a predetermined speed, and the rotating box body 310 being in a stationary state means that the rotating box body 310 stops at a predetermined position.

[0097] Specifically, in this embodiment, the first bracket 210 and the second bracket 220 are spaced relatively apart in the horizontal direction. The turntable main body 310 is of a square box structure. The first shaft seat 340 and the second shaft seat 350 are respectively fixedly arranged on the opposite sides of the turntable main body 310 in the horizontal direction, and the first shaft seat 340 is located at the central position of the corresponding side of the turntable main body 310, and the second shaft seat 350 is located at the central position of the corresponding side of the turntable main body 310. The first rotating shaft 320 extends in the horizontal direction and is fixedly connected to the center of the corresponding side of the turntable main body 310 through the first shaft seat 340. The second rotating shaft 330 extends in the horizontal direction and is fixedly connected to the center of the corresponding side of the turntable main body 310 through the second shaft seat 350, thereby realizing the self-rotation of the turntable main body 310 along its own horizontal central axis.

[0098] Please refer to Figure 3 , in this embodiment, the first driving unit 360 includes a driving motor 361 and a deceleration element 362. Among them, the driving motor 361 is fixedly arranged on the second bracket 220 and is rotationally connected to the deceleration element 362. The deceleration element 362 is rotationally connected to the second rotating shaft 330. The deceleration element 362 is used to increase the output torque of the driving motor 361, thereby increasing the load capacity of the driving motor 361. In addition, the control module 500 is communicatively connected to the driving motor 361 and is used to control the working state of the driving motor 361.

[0099] Furthermore, in this embodiment, the sample-carrying turntable 300 further includes a plurality of special-shaped billiard balls (not shown in the figure). The plurality of special-shaped billiard balls are all arranged inside the turntable main body 310, and each special-shaped billiard ball is a silicone special-shaped sphere or a rubber special-shaped sphere. When the turntable main body 310 is in a rotating state, the plurality of special-shaped billiard balls are used to repeatedly impact the fabric sample, thereby simulating the complex stress conditions suffered by the fleece fabric specimen during actual wearing and use, and improving the reliability of the test results.

[0100] Please refer to together Figure 3 , Figure 4 , Figure 5 and Figure 6 , in this embodiment, the adsorption assembly 400 includes a first electrostatic chuck 410, a second electrostatic chuck 420 and a second driving unit 430. Fixed grooves 311 and a switch box door 312 are respectively provided on the opposite sides of the turntable main body 310. The fixed groove 311 is located on the outside of the turntable main body 310. The first electrostatic chuck 410 is embedded in the fixed groove 311, and an electrostatic adsorption area 313 is formed on the inner side of the turntable main body 310 at the corresponding position, that is, the electrostatic adsorption area 313 is located on the inner side of the turntable main body 310 and faces the first electrostatic chuck 410. The switch box door 312 is hingedly connected to the turntable main body 310 for opening or closing the turntable main body 310. The second driving unit 430 is movably arranged on the base main body 110 and is drivingly connected to the second electrostatic chuck 420.

[0101] It should be noted that in this embodiment, when the above-mentioned transfer box main body 310 is in a rotating state, the first electrostatic chuck 410 is used to adsorb and collect the fluff fibers of the fabric sample to the electrostatic adsorption area 313. When the transfer box main body 310 is in a stationary state, the second driving unit 430 is used to drive the second electrostatic chuck 420 along the arrangement direction of the fixed groove 311 and the switch box door 312 until the second electrostatic chuck 420 enters the transfer box main body 310 through the switch box door 312 and reaches the first working position. Immediately, the second electrostatic chuck 420 is adjacent to the electrostatic adsorption area 313, and the second electrostatic chuck 420 is correspondingly used to adsorb and collect the fluff fibers located on the electrostatic adsorption area 313.

[0102] It should be noted that in this embodiment, both the above-mentioned first electrostatic chuck 410 and the second electrostatic chuck 420 have a powered-on state and a powered-off state. Only when the first electrostatic chuck 410 or the second electrostatic chuck 420 is in the powered-on state, the first electrostatic chuck 410 or the second electrostatic chuck 420 has an electrostatic adsorption effect on the fluff fibers. Therefore, when the transfer box main body 310 is in a stationary state and the second electrostatic chuck 420 is located at the first working position, it is necessary to power on the second electrostatic chuck 420 and then power off the first electrostatic chuck 410, so as to facilitate the second electrostatic chuck 420 to successfully adsorb and collect the fluff fibers located on the electrostatic adsorption area 313.

[0103] Please refer to Figure 6 、 Figure 7 and Figure 8 , in this embodiment, a buffer abutting washer 421 is provided around the edge of the above-mentioned second electrostatic chuck 420, and a buffer abutting area 314 is provided around the outer periphery of the electrostatic adsorption area 313. When the transfer box main body 310 is in a stationary state and the second electrostatic chuck 420 is located at the first working position, the buffer abutting washer 421 immediately elastically abuts between the second electrostatic chuck 420 and the buffer abutting area 314. The buffer abutting washer 421 is used to prevent the second electrostatic chuck 420 from hitting and contacting the inner wall of the transfer box main body 310 under the driving action of the second driving unit 430, resulting in damage to the transfer box main body 310, the second electrostatic chuck 420, or the second driving unit 430.

[0104] Please refer to Figure 1 、 Figure 2 and Figure 3In the present embodiment, the above-mentioned lint degree testing device 10 for pile fabric further includes a shockproof base 600 and a balance assembly 700. The base body 110 is correspondingly provided with a hollow area 111. The shockproof base 600 is located in the hollow area 111 and avoids the base body 110. The balance assembly 700 is fixedly arranged on the shockproof base 600. In this way, the rotating box body 310 can be prevented from causing synchronous vibration of the balance assembly 700 during rotation, thereby causing an adverse effect on the measurement accuracy of the balance assembly 700.

[0105] It should be noted that, in the present embodiment, when the above-mentioned rotating box body 310 is in a stationary state, the fixed groove 311 and the switch box door 312 are arranged at intervals in the vertical direction, and the switch box door 312 is located below the fixed groove 311, and the balance assembly 700 is located below the switch box door 312. The second driving unit 430 is used to drive the second electrostatic suction cup 420 in the vertical direction until the second electrostatic suction cup 420 enters the rotating box body 310 through the switch box door 312 and reaches the first station. After the second electrostatic suction cup 420 adsorbs and collects the fluff fibers located in the electrostatic adsorption area 313, the second driving unit 430 is used to drive the second electrostatic suction cup 420 in the vertical direction until the second electrostatic suction cup 420 leaves the rotating box body 310 through the switch box door 312 and reaches the second station. The second electrostatic suction cup 420 is then supported on the balance assembly 700, and the balance assembly 700 is correspondingly used to weigh the initial mass of the fabric sample and the mass of the fluff fibers.

[0106] Please also read Figure 7 and Figure 8 In the present embodiment, the second driving unit 430 comprises a telescopic bracket 431 and a support tray 432, wherein the telescopic bracket 431 is movably arranged on the base body 110 and is located at the edge of the hollow area 111, the telescopic bracket 431 is driven to connect to the support tray 432 along the vertical direction, and the support tray 432 is always located above the balance assembly 700, and the second electrostatic suction cup 420 is fixedly arranged on the support tray 432. In addition, the control module 500 is communicatively connected to the first electrostatic suction cup 410, the second electrostatic suction cup 420, the telescopic bracket 431 and the balance assembly 700, and is further used to respectively control the working states of the first electrostatic suction cup 410, the second electrostatic suction cup 420 and the telescopic bracket 431, and obtain the quality information fed back by the balance assembly 700.

[0107] It should be noted that in this embodiment, when the above-mentioned transfer box main body 310 is in a stationary state, the telescopic support 431 is used to drive the support tray 432 and the second electrostatic chuck 420 upward in the vertical direction until the support tray 432 and the second electrostatic chuck 420 enter the transfer box main body 310 through the switch box door 312 and the second electrostatic chuck 420 reaches the first station. After the second electrostatic chuck 420 adsorbs and collects the fluff fibers in the electrostatic adsorption area 313, the telescopic support 431 is used to drive the support tray 432 and the second electrostatic chuck 420 downward in the vertical direction until the support tray 432 and the second electrostatic chuck 420 leave the transfer box main body 310 through the switch box door 312 and the second electrostatic chuck 420 reaches the second station. Then, the telescopic support 431 and the support tray 432 are relatively separated in the vertical direction, and the telescopic support 431 is always located below the support tray 432. The support tray 432 and the second electrostatic chuck 420 are then supported on the balance assembly 700 together, so that the mass of the fluff fibers can be weighed.

[0108] Specifically, in this embodiment, a plug-in groove (not shown in the figure) is provided at the bottom of the above-mentioned support tray 432, and the telescopic support 431 is provided with a plug-in guide post (not shown in the figure) adapted to the plug-in groove to form a plug-in fit in the vertical direction. When the telescopic support 431 drives the support tray 432 to move upward or downward in the vertical direction, the plug-in guide post is always plugged in the plug-in groove, thereby keeping the support tray 432 in a stable state. When the second electrostatic chuck 420 is located at the second station, the plug-in guide post and the plug-in groove are then relatively separated in the vertical direction, so that the support tray 432, the second electrostatic chuck 420 and the fluff fibers are supported on the balance assembly 700 based on their own gravity.

[0109] Please refer to Figure 2 and Figure 3 , in this embodiment, the above-mentioned fuzzing degree testing device 10 for the raised fabric further includes a camera assembly 800. The camera assembly 800 is movably arranged on the second bracket 220. When the transfer box main body 310 is in a stationary state and the second electrostatic chuck 420 adsorbs and collects the fluff fibers in the electrostatic adsorption area 313, the telescopic support 431 is used to drive the support tray 432 and the second electrostatic chuck 420 together in the vertical direction until the support tray 432 and the second electrostatic chuck 420 leave the transfer box main body 310 through the switch box door 312 and the second electrostatic chuck 420 reaches the third station or the second station. The camera assembly 800 is correspondingly used to take pictures of the fluff fibers on the second electrostatic chuck 420. It can be understood that the third station is located between the switch box door 312 and the second station in the vertical direction. When the second electrostatic chuck 420 is located at the third station or the second station, the camera assembly 800 can be accommodated between the second electrostatic chuck 420 and the transfer box main body 310, so that the camera assembly 800 can be suspended above the fluff fibers to take pictures of the fluff fibers.

[0110] Specifically, in this embodiment, the camera assembly 800 includes a third driving unit 810 and a camera body 820. The third driving unit 810 is movably disposed on the second bracket 220 and is driven to connect to the camera body 820 in a horizontal direction. In addition, the control module 500 is communicatively connected to the third driving unit 810 and the camera body 820, and is further used to control the working states of the third driving unit 810 and the camera body 820 respectively, and obtain image information fed back by the camera body 820.

[0111] It should be noted that, in this embodiment, when the above-mentioned rotating box body 310 is in a stationary state, when the second electrostatic suction cup 420 reaches the third station or the second station, the third driving unit 810 is correspondingly used to drive the camera body 820 in the horizontal direction until the camera body 820 is suspended above the second electrostatic suction cup 420.

[0112] Please also read Figure 1 and Figure 2 In the present embodiment, the above-mentioned lint degree testing device 10 for pile fabric further includes a protective shell 900, which is fixedly disposed on the base body 110 and covers the second bracket 220. The driving motor 361 and the deceleration element 362 in the first driving unit 360, and the third driving unit 810 are all located inside the protective shell 900. The protective shell 900 further includes a first opening (not shown in the figure) that avoids the movement trajectory of the second rotating shaft 330, so that the second rotating shaft 330 can extend into the protective shell 900 to connect with the deceleration element 362. The protective shell 900 further includes a second opening (not shown in the figure) that avoids the movement trajectory of the third driving unit 810, so that the third driving unit 810 can extend out of the protective shell 900 to drive and connect with the camera body 820.

[0113] Specifically, in this embodiment, the control module 500 is fixedly mounted on the second bracket 220 and is located inside the protective shell 900. The protective shell 900 is also provided with a display screen 910 and an operation button 920. The control module 500 is respectively communicatively connected to the display screen 910 and the operation button 920. The display screen 910 is used to display the initial quality of the fabric sample, the quality of the fluff fibers, the amount of lint, the lint density and the degree of lint of the fabric sample. The operation button 920 is used to perform command operations on the control module 500.

[0114] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A testing device for the degree of hair loss of a fleece fabric, characterized in that It includes a leveling base, a support assembly, a sample-carrying rotating box, an adsorption assembly and a control module. The support assembly is fixedly arranged on the leveling base. The sample-carrying rotating box is rotatably connected to the support assembly and is used for accommodating and tumbling fabric samples. The adsorption assembly is used for adsorbing and collecting the fluff fibers dropped by the fabric samples during tumbling. The control module is used for: Obtaining the mass of the fluff fibers; Obtaining a photo of the fluff fibers; Performing grayscale processing on the photo to obtain a first image; Determining the number of shed hairs and the shedding density according to the pixel distribution of the first image; The control module is used for determining the number of shed hairs and the shedding density according to the pixel distribution of the first image, which specifically includes: Performing histogram equalization processing on the first image to obtain a second image; Performing brightness enhancement processing on the second image to obtain a third image; Performing binary conversion processing on the third image to obtain a fourth image; Calculating the area of the foreground pixels in the fourth image; Determining the shedding density according to the area of the foreground pixels and a preset pixel area; Determining the shedding degree according to the initial mass of the fabric sample, the mass of the fluff fibers, the number of shed hairs and the shedding density; The sample-carrying rotating box includes a rotating box body. A switch box door is arranged on the side of the rotating box body. The adsorption assembly includes a first electrostatic chuck, a second electrostatic chuck and a second driving unit. The first electrostatic chuck is arranged on the rotating box body and forms an electrostatic adsorption area opposite to the inner side of the corresponding position of the rotating box body. The second driving unit is movably arranged on the leveling base and is drivingly connected to the second electrostatic chuck; When the rotating box body is in a rotating state, the first electrostatic chuck is used for adsorbing and collecting the fluff fibers of the fabric sample to the electrostatic adsorption area. When the rotating box body is in a stationary state, the second driving unit is used for driving the second electrostatic chuck until the second electrostatic chuck enters the rotating box body through the switch box door and reaches the first station. The second electrostatic chuck is then adjacent to the electrostatic adsorption area, and the second electrostatic chuck is correspondingly used for adsorbing and collecting the fluff fibers located on the electrostatic adsorption area.

2. The fuzzing degree testing device for raised fabrics according to claim 1, wherein, The control module is used for determining the number of shed hairs and the shedding density according to the pixel distribution of the first image, which specifically further includes: performing dilation processing on the fourth image to obtain a fifth image; Performing denoising processing on the fifth image to obtain a sixth image; Counting the number of fluff fibers in the sixth image to determine the number of shed hairs.

3. The fuzzing degree testing device for the raised fabric according to claim 1, characterized in that, The control module is used for determining the shedding degree according to the initial mass of the fabric sample, the mass of the fluff fibers, the number of shed hairs and the shedding density, which specifically includes: Determining the shedding mass grade according to the initial mass of the fabric sample and the mass of the fluff fibers; Determining the shedding number grade according to the number of shed hairs; Determining the shedding density grade according to the shedding density; Determining the shedding degree according to the shedding mass grade, the shedding number grade and the shedding density grade.

4. The fuzzing degree testing device for the napped fabric according to claim 1, wherein, The supporting assembly includes a first bracket and a second bracket, and the sample transfer box also includes a first rotating shaft, a second rotating shaft, a first shaft seat, a second shaft seat and a first driving unit. The first bracket and the second bracket are arranged on the leveling base at intervals, and the first shaft seat and the second shaft seat are fixedly arranged on opposite sides of the transfer box body along the arrangement direction of the first bracket and the second bracket. One end of the first rotating shaft is fixedly connected to the first shaft seat, and the other end is rotatably connected to the first bracket. One end of the second rotating shaft is fixedly connected to the second shaft seat, and the other end is rotatably connected to the second bracket. The first driving unit is fixedly arranged on the second bracket and rotatably connected to the second rotating shaft. The first driving unit is used to rotate the transfer box body to the rotating state, or to stop the transfer box body to the stationary state.

5. The fuzzing degree testing device for the raised fabric according to claim 4, characterized in that, The first driving unit includes a driving motor and a deceleration element. The driving motor is fixedly disposed on the second bracket and is rotationally connected to the deceleration element. The deceleration element is rotationally connected to the second rotating shaft. The control module is communicatively connected to the driving motor.

6. The fuzzing degree testing device for raised fabrics according to claim 4, characterized in that, The sample transfer box also includes a plurality of special-shaped billiard balls arranged inside the transfer box body, and the special-shaped billiard balls are special-shaped silica gel balls or special-shaped rubber balls.

7. The fuzzing degree testing device for raised fabric according to claim 4, characterized in that, A fixing groove is provided on the outer side of the rotating box body, the fixing groove is arranged opposite to the switch box door, and the first electrostatic suction cup is embedded in the fixing groove.

8. The fuzzing degree testing device for the raised fabric according to claim 7, wherein, The edge ring of the second electrostatic suction cup is provided with a buffer abutment gasket, and the outer edge ring of the electrostatic adsorption area is provided with a buffer abutment area; when the rotating box body is in the static state and the second electrostatic suction cup is located at the first workstation, the buffer abutment gasket is elastically abutted between the second electrostatic suction cup and the buffer abutment area.

9. The fuzzing degree testing device for raised fabrics according to claim 7, characterized in that, It also includes a shockproof base and a balance assembly, the leveling base is provided with a hollow area, the shockproof base is located in the hollow area and avoids the leveling base, and the balance assembly is fixedly arranged on the shockproof base; When the rotating box body is in the static state, the fixed groove and the switch box door are arranged at intervals in the vertical direction, and the switch box door intervals are located below the fixed grooves, and the balance assembly intervals are located below the switch box door. The second driving unit is used to drive the second electrostatic suction cup in the vertical direction until the second electrostatic suction cup passes through the switch box door to enter the rotating box body and reaches the first station. After the second electrostatic suction cup adsorbs and collects the fluff fibers located in the electrostatic adsorption area, the second driving unit is used to drive the second electrostatic suction cup in the vertical direction until the second electrostatic suction cup leaves the rotating box body through the switch box door and reaches the second station. The second electrostatic suction cup is then supported on the balance assembly, and the balance assembly is used to weigh the initial mass of the fabric sample and the mass of the fluff fibers accordingly.

10. The fuzzing degree testing device for the napped fabric according to claim 9, wherein The second driving unit includes a telescopic bracket and a support tray, the telescopic bracket is fixedly arranged at the edge of the hollow area and avoids the balance component in the vertical direction, the telescopic bracket is driven to connect with the support tray in the vertical direction, and the support tray is located above the balance component, the second electrostatic chuck is fixedly arranged on the support tray, and the control module is communicatively connected with the telescopic bracket, the first electrostatic chuck and the second electrostatic chuck; When the rotating box body is in the stationary state, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup enter the rotating box body through the switch box door and the second electrostatic suction cup reaches the first station. After the second electrostatic suction cup adsorbs and collects the fluff fibers located in the electrostatic adsorption area, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup leave the rotating box body through the switch box door and the second electrostatic suction cup reaches the second station. The telescopic bracket and the support tray are then relatively separated in the vertical direction, and the telescopic bracket is located below the support tray. The support tray and the second electrostatic suction cup are then supported on the balance assembly together.

11. The fuzzing degree testing device for the raised fabric according to claim 10, characterized in that, The bottom of the support tray is provided with an inserting groove, and the telescopic bracket is provided with an inserting guide column adapted to the inserting groove to form an inserting fit along the vertical direction.

12. The fuzzing degree testing device for the raised fabric according to claim 11, wherein, It also includes a camera assembly, which is movably arranged on the second bracket; the rotating box body is in the static state, and when the second electrostatic suction cup absorbs and collects the fluff fibers located in the electrostatic adsorption area, the telescopic bracket is used to drive the support tray and the second electrostatic suction cup together in the vertical direction until the support tray and the second electrostatic suction cup leave the rotating box body through the switch box door and the second electrostatic suction cup reaches the third station or the second station, and the camera assembly is correspondingly used to take pictures of the fluff fibers located on the second electrostatic suction cup.

13. The fuzzing degree testing device for raised fabrics according to claim 12, wherein, The camera assembly includes a third driving unit and a camera body, the third driving unit is movably arranged on the second bracket and is driven to connect to the camera body in a horizontal direction, and the control module is communicatively connected to the third driving unit and the camera body; when the rotating box body is in the stationary state, when the second electrostatic suction cup reaches the third station or the second station, the third driving unit is correspondingly used to drive the camera body in a horizontal direction until the camera body is suspended above the second electrostatic suction cup.

14. The fuzzing degree testing device for raised fabric according to claim 13, characterized in that, It also includes a protective shell, which is fixedly arranged on the leveling base and covers the second bracket. The first drive unit and the third drive unit are both located inside the protective shell. The protective shell also has a first opening that avoids the movement trajectory of the second rotating shaft and a second opening that avoids the movement trajectory of the third drive unit.

15. The fuzzing degree testing device for raised fabrics according to claim 14, characterized in that, The control module is fixedly arranged on the second bracket and is located inside the protective housing. The protective housing is also provided with a display screen and operation buttons, and the control module is respectively communicatively connected to the display screen and the operation buttons.

16. The fuzzing degree testing device for the raised fabric according to any one of claims 4-15, characterized in that, The leveling base includes a base body, leveling feet and a level. The leveling feet are threadedly connected to the bottom of the base body, and the level is fixedly arranged on the top of the base body.

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