Visual inspection device and method for spandex silk road defects based on image detection

Abstract

The invention relates to the technical field of spandex yarn separation detection, in particular to a spandex yarn path defect visual inspection device and method based on image detection, and the device comprises light supply mechanisms which comprise light modulation assemblies and light shading assemblies, the number of the light supply mechanisms is equal to that of slave godets, the light supply mechanisms and the slave godets are arranged in a one-to-one correspondence mode, and the multiple slave godets are arranged in an array mode in the horizontal direction; a shading plate in the shading assembly is arranged below the driven godet in the axis direction of the driven godet. The inspection mechanism comprises a walking vehicle, a mechanical arm fixedly arranged on the top surface of the walking vehicle and a mounting column fixedly arranged at the upper end of the mechanical arm; the guide rail frame is embedded in the bottom surface, and the vertical section of the guide rail frame is U-shaped; the processing control mechanism comprises a control module, an image processing module, an image comparison module and a storage module, the inspection device can achieve large-range and high-automation spandex filament division inspection of the whole workshop, the whole detection process is easy to operate and high in accuracy, and the spandex filament defects can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of spandex yarn detection, and in particular to a spandex yarn defect visual inspection device and method based on image detection. Background Art

[0002] Spandex is the abbreviation of polyurethane fiber, an elastic fiber, and a common raw material for clothing products. At present, due to the high production technology requirements, the market price of low-specification monofilament spandex yarn is more than 20% higher than that of spandex multifilament. In production, low-specification monofilament spandex yarn can be prepared by direct spinning or by splitting spandex multifilament. For example, the existing open document CN220284303U-A special device for spandex yarn separation and the existing open document CN204959128U-An improved special device for spandex yarn separation both disclose a device for spandex yarn separation. However, in the actual spandex yarn separation process, there are often defects in the spandex yarn after separation (including broken yarn, twisted yarn and skipped yarn). To address this problem, in the spandex yarn separation process, the staff needs to hold a flashlight to illuminate the spandex yarn from the side of the spandex textile machine, and judge whether the spandex yarn state is qualified by the presence or absence of the yarn and the abnormal swing amplitude. However, in industrial production, because there are many equipments, the manual inspection method will greatly increase the labor intensity of the staff, and the manual inspection also has the problem of low work efficiency. In response to this type of problem, the existing public document CN207113927U - A thread detection device was retrieved. This thread detection device can reduce the labor intensity of the staff to a certain extent, but the existing thread detection device can only detect single-strand threads, and after the detection is completed, the thread with problems cannot be picked out, and the staff still needs to handle it later; Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the problem that the defects of the spandex yarns after the splitting need to be manually inspected during the splitting of the existing spandex, a visual inspection device for spandex yarn defects based on image detection is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a visual inspection device for spandex yarn defects based on image detection, comprising: a light supply mechanism, including a dimming component and a shading component, the number of light supply mechanisms is equal to that of the guide wire rollers and they are arranged one by one, a plurality of guide wire rollers are arranged in an array along the horizontal direction, a shading plate in the shading component is arranged below the guide wire roller along the axial direction of the guide wire roller, the dimming component is arranged on the side of the shading plate close to the wire outlet from the guide wire roller, the dimming component includes a light source generator and a plano-concave mirror, and the light generated by the light source generator is irradiated on the wire output from the guide wire roller after passing through the plano-concave mirror; an inspection mechanism includes a traveling vehicle and a mechanical arm fixed on the top surface of the traveling vehicle and a mounting column fixed on the upper end of the robot arm, a camera is installed on one end of the mounting column, and the camera is used to capture images of the silk thread output from the wire guide roller, the robot arm has at least two joint groups that can realize three-dimensional adjustment; a guide rail frame, the guide rail frame is buried in the bottom surface, and the vertical cross-section of the guide rail frame is U-shaped; and a processing control mechanism, including a control module, an image processing module, an image comparison module and a storage module, the image processing module is used to perform image cropping and reduction processing on the photos captured by the camera, and then the image comparison module compares the silk thread swing amplitude between the standard photos stored in the storage module and the processed photos, and when the swing amplitude is abnormal, the control module performs an abnormal processing action.

[0006] The beneficial effects of the present invention are as follows: when the inspection device is in use, a light band is emitted from one side of the wire guide roller through the dimming component. After the light band is irradiated on the spandex yarn, the camera will take pictures of the silk thread from the wire guide roller for a period of time due to the reflection of the spandex yarn. The image comparison module compares the swing amplitude of the silk thread within a period of time with the swing amplitude in the standard picture. When the swing amplitude exceeds the standard picture or a swinging silk thread is missing, the control module performs an abnormal processing action. This setting method can synchronously detect multiple strands of silk thread from a wire guide roller, and the cooperation of the walking vehicle and the guide rail frame can realize the inspection mechanism to inspect the entire workshop, effectively improve the detection efficiency when the silk thread is separated, and the labor intensity is low.

[0007] As a preferred solution of a spandex silk road defect visual inspection device based on image detection of the present invention, wherein: the light supply mechanism also includes a supporting assembly, the supporting assembly includes a mounting plate, a telescopic rod and a supporting rod; the dimming assembly includes a base plate and a sliding plate, a plug-in frame is fixedly provided on the front end surface of the base plate, and the plug-in frame is used for the insertion of a plano-concave mirror, a sliding groove is opened on the top surface of the base plate along the front-to-back direction, a fixed plate is fixedly sleeved on the outer side of the light source generator, a sliding block is fixedly provided on the bottom surface of the fixed plate, and the sliding block is gap-fitted in the sliding groove, a screw column is spirally sleeved on the sliding block, and the front and rear ends of the screw column are rotatably sleeved on the base plate; the shading assembly includes a placing plate, and a rectangular through groove for the insertion of one end of the shading plate is opened on the placing plate along the front-to-back direction, an adjusting bolt is spirally sleeved on the top surface of the placing plate, and the lower end of the adjusting bolt abuts against the top surface of the shading plate.

[0008] As a preferred solution of the spandex silk road defect visual inspection device based on image detection of the present invention, wherein: telescopic rods are symmetrically fixed on both sides of the bottom surface of the mounting plate, and the lower end of the telescopic rod is slidably sleeved on the support rod, and a locking bolt is spirally fitted on one side surface of the upper end of the support rod, and one end of the locking bolt abuts against the outer side wall of the telescopic rod; a convex disk is fixed on the middle part of the bottom surface of the base plate, and a convex groove for gap fitting of the convex disk is opened on the top surface of the sliding plate, a locking bolt is spirally sleeved on the base plate, and the locking bolt The lower end of the bolt abuts against the top surface of the sliding plate, and a first L-shaped plate is symmetrically fixed on the front and rear sides of the bottom of the sliding plate, and the first L-shaped plate is clamped on the outside of the mounting plate, and a locking bolt is screwed on the sliding plate, and the lower end of the locking bolt abuts against the top surface of the mounting plate; a second L-shaped plate is symmetrically fixed on the front and rear sides of the bottom of the placing plate, and the second L-shaped plate is clamped on the outside of the mounting plate, an extension plate is fixed at the lower end of one side of the placing plate, a locking bolt is screwed on the extension plate, and the lower end of the locking bolt abuts against the top surface of the mounting plate.

[0009] As a preferred solution of the spandex silk road defect visual inspection device based on image detection of the present invention, wherein: both ends of the mounting column are spirally sleeved with threaded columns, and a clamping frame is fixed on one end face of one of the threaded columns, and the clamping frame is used to clamp and fix the camera.

[0010] In view of the fact that the existing silk thread detection device cannot pick out the silk thread with problems, the present invention makes further optimization and improvement to a spandex silk path defect visual inspection device based on image detection, wherein: a wire hooking assembly is fixedly provided on one end face of another threaded column, and the wire hooking assembly includes a fixed rod, a T-shaped rod, a connecting plate and a linkage plate, the two fixed rods are arranged in an array in the horizontal direction, and a gear plate is fixedly provided at one end of the fixed rod, a linkage plate is arranged between the two gear plates, and bar teeth for meshing with the two gear plates are respectively provided on both side faces of the linkage plate, an L-shaped rod is slidably sleeved on the fixed rod, and the other end of the L-shaped rod is fixedly provided on the connecting plate, and the connecting plate is fixedly connected to the end face of the threaded column by bolts; a connecting plate is fixedly provided at the lower end position of one side surface of the linkage plate, a T-shaped column is slidably sleeved on the connecting plate, and the lower end of the T-shaped column is fixedly provided on the connecting plate, a second spring is slidably sleeved on the T-shaped column above the connecting plate, and an electromagnetic plate is fixedly provided on the connecting plate above the linkage plate.

[0011] As a preferred solution of the spandex silk path defect visual inspection device based on image detection of the present invention, wherein: a T-slot is opened in the fixed rod, and the T-rod is slidably sleeved in the T-slot, a wire hook is integrally formed on one end of the T-rod located outside the T-slot, a piston column is fixed on one end of the T-rod located inside the T-slot, and an air intake pipe connected to the T-slot is fixed on the side wall of the fixed rod between the piston column and the gear plate; a first spring is slidably sleeved on the T-rod located in the T-slot.

[0012] Another beneficial effect of the present invention is that when the inspection device is in use, when the swing amplitude of the silk thread is abnormal, the control module will control the mechanical arm to drive the wire hooking assembly to move to the position of the defective silk thread, so that the two fixed rods are located on both sides of the defective silk thread, and then the electromagnetic plate is energized, and the magnetism generated by the energization will drive the linkage plate to move upward, and because of the meshing setting of the bar teeth and the gear plate, under the action of the upward movement of the linkage plate, the two fixed rods will be driven to rotate synchronously through the two gear plates, and under this action, the wire hook will hook on the silk thread, and then under the drive of the mechanical arm, the defective silk thread will be hooked up, which makes it convenient for the staff to quickly handle it.

[0013] As a preferred solution of the spandex silk road defect visual inspection device based on image detection of the present invention, a support plate is embedded in the middle of the bottom surface of the traveling vehicle, and guide rail plates are fixed on the bottom surface of the traveling vehicle on both sides of the support plate along the traveling direction, and the guide rail plates are gap-fitted in the U-shaped groove of the guide rail frame.

[0014] As a preferred solution of the spandex yarn defect visual inspection device based on image detection of the present invention, the guide rail frame is in a grid shape arranged on the outside of multiple winding mechanisms.

[0015] In addition, the present invention also provides the following technical solutions: a method for using a spandex thread defect visual inspection device based on image detection, wherein the spandex thread defect visual inspection device based on image detection performs inspection according to the following steps; S1: The inspection agency walks on the guide rail according to the planned route; S2: After walking to the predetermined position, the robot arm will control the camera to move above the guide roller where the photo needs to be taken; S3: Through the reflection of the light emitted by the light source generator on the silk thread, the camera will take pictures of the silk thread for a certain period of time; S4: the image processing module processes the collected image, and then the image comparison module determines the swing state of the silk thread during transmission by comparing it with the standard photo; S5: When the swing amplitude is abnormal, the control module takes abnormal processing action. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 The figure is a schematic diagram of the overall structure of a spandex thread defect visual inspection device based on image detection in the present invention.

[0017] Figure 2 It is a schematic diagram of the coordination between the wire winding mechanism and the light supply mechanism in the present invention.

[0018] Figure 3 It is a schematic diagram of the overall structure of the dimming component in the present invention.

[0019] Figure 4 It is an exploded view of the dimming component in the present invention.

[0020] Figure 5 It is a schematic diagram of the overall structure of the shading component in the present invention.

[0021] Figure 6 It is a schematic diagram of the overall structure of the wire winding mechanism and the supporting assembly in the present invention.

[0022] Figure 7 It is a schematic diagram of the overall structure of the inspection mechanism in the present invention.

[0023] Figure 8 It is a schematic diagram of the bottom structure of the inspection mechanism in the present invention.

[0024] Fig. 9It is a schematic diagram of the cooperation between the thread hooking component and the thread column in the present invention.

[0025] Fig.10 It is an exploded view of the wire hooking component in the present invention.

[0026] Fig.11 This is a real picture of the camera in the present invention capturing images of the silk thread on the wire guide roller. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example 1

[0031] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 , which is the first embodiment of the present invention, and this embodiment provides a spandex silk path defect visual inspection device based on image detection. When the inspection device is in use, the light supply mechanism 200 is matched with the wire winding mechanism 100, and the light supply mechanism 200 mainly generates a light band to illuminate the silk thread. The inspection mechanism 300, with the cooperation of the guide rail frame 400, realizes the collection of the silk thread swing amplitude state on each light supply mechanism 200, and the processing control mechanism is used to process the collected pictures.

[0032] Specifically, it includes a light supply mechanism 200, including a dimming component 201 and a shading component 202; an inspection mechanism 300, including a traveling vehicle 301, a mechanical arm 302 fixed on the top surface of the traveling vehicle 301, and a mounting column 303 fixed on the upper end of the mechanical arm 302; a guide rail frame 400, the guide rail frame 400 is buried in the bottom surface, and the vertical section of the guide rail frame 400 is U-shaped; and a processing control mechanism, including a control module, an image processing module, an image comparison module and a storage module; The wire winding mechanism 100 includes an L-shaped machine base 101, a main wire roller 102 whose one end is connected to the vertical plate of the machine base 101, subordinate wire rollers 103 arranged in a horizontal array on one side above the main wire roller 102, and two winding rollers 104 arranged below each subordinate wire roller 103. Multiple strands of wire are wound around the top of the main wire roller 102 in a parallel manner, and then each strand of wire is divided into each subordinate wire roller 103, and finally the winding roller 104 winds the wire on the subordinate wire roller 103.

[0033] See Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the number of light supply mechanisms 200 is equal to that of the wire guide rollers 103 and they are arranged one by one. The plurality of wire guide rollers 103 are arranged in an array in the horizontal direction. The light shielding plate 202a in the light shielding assembly 202 is arranged below the wire guide roller 103 along the axial direction of the wire guide roller 103. The dimming assembly 201 is arranged on the side of the light shielding plate 202a close to the wire outlet side of the wire guide roller 103. The dimming assembly 201 includes a light source generator 201b and a plano-concave mirror 201c. The light generated by the light source generator 201b is irradiated on the wire guide roller 103 after passing through the plano-concave mirror 201c. On the silk thread output by the guide roller 103, the light source generator 201b is always irradiated onto the vertical plate of the machine base 101; preferably, the light source generator 201b is a circular emission port with a diameter of 55mm-100mm, and is focused by the plano-concave mirror 201c to form a bright band with a width of 70mm-120mm and a total length of 1500mm-1800mm. The light source generator 201b lamp beads are LED lamp beads with a full load of 350-550 lumens, and the plano-concave mirror 201c has a diameter of 60mm-80mm and 30mm-40mm; The dimming component 201 includes a base plate 201a and a sliding plate 201d, a plug-in frame 201a-1 is fixedly provided on the front end surface of the base plate 201a, and the plug-in frame 201a-1 is used for inserting the plano-concave mirror 201c, a sliding groove 201a-2 is opened on the top surface of the base plate 201a along the front-to-back direction, a fixed plate 201b-1 is fixedly sleeved on the outer side of the light source generator 201b, a sliding block 201b-2 is fixedly provided on the bottom surface of the fixed plate 201b-1, and the sliding block 201b-2 is loosely fitted in the sliding groove 201a-2, a screw column 201a-4 is spirally sleeved on the sliding block 201b-2, and the front and rear ends of the screw column 201a-4 are rotatably sleeved on the base plate 201a, so that when the screw column 201a-4 is rotated, the sliding block 201b-2 can drive the light source generator 201b to adjust its position in the front-to-back direction; The shading assembly 202 includes a placement plate 202b, and a rectangular through groove 202b-1 for inserting one end of the shading plate 202a is opened on the placement plate 202b along the front-to-back direction. An adjusting bolt 202b-4 is spirally sleeved on the top surface of the placement plate 202b, and the lower end of the adjusting bolt 202b-4 is abutted against the top surface of the shading plate 202a, so that the shading plate 202a can be clamped and fixed. The shading plate 202a mainly plays a shading role to prevent other light from interfering with the light generated by the light source generator 201b. In actual use, a pad can also be filled in the rectangular through groove 202b-1 below the shading plate 202a to adjust the position of the shading plate 202a; preferably, the size of the shading plate 202a is 1300mm long × 150mm wide; The light supply mechanism 200 also includes a support assembly 203, which includes a mounting plate 203a, a telescopic rod 203b and a support rod 203c. The telescopic rods 203b are symmetrically fixed on both sides of the bottom surface of the mounting plate 203a, and the lower end of the telescopic rod 203b is slidably sleeved on the support rod 203c. A locking bolt is spirally fitted on one side surface of the upper end of the support rod 203c, and one end of the locking bolt abuts against the outer wall of the telescopic rod 203b, so that the position of the telescopic rod 203b relative to the support rod 203c in the vertical direction can be adjusted, and the position of the dimming assembly 201 and the shading assembly 202 in the vertical direction can be adjusted.

[0034] Furthermore, a convex disk 201a-3 is fixedly provided in the middle part of the bottom surface of the base plate 201a, and a convex groove 201d-2 for the clearance fit of the convex disk 201a-3 is opened on the top surface of the sliding plate 201d. A locking bolt is spirally sleeved on the base plate 201a, and the lower end of the locking bolt abuts against the top surface of the sliding plate 201d, so that the angle of light emitted by the light source generator 201b can be adjusted. The base plate 201a rotates in the horizontal direction relative to the sliding plate 201d, so that the first L-shaped plate 201d-1 is symmetrically fixed on the front and rear sides of the bottom of the sliding plate 201d, and the first L-shaped plate 201d-1 is clamped on the outside of the mounting plate 203a. A locking bolt is spirally sleeved on the sliding plate 201d, and the lower end of the locking bolt abuts against the top surface of the mounting plate 203a. This arrangement can realize the sliding plate 201d driving the light source generator 201b to adjust its position on the mounting plate 203a.

[0035] Furthermore, a second L-shaped plate 202b-2 is symmetrically fixed on the front and rear sides of the bottom of the placement plate 202b, and the second L-shaped plate 202b-2 is clamped on the outside of the mounting plate 203a. An extension plate 202b-3 is fixed at the lower end of one side of the placement plate 202b. A locking bolt is spirally sleeved on the extension plate 202b-3, and the lower end of the locking bolt abuts against the top surface of the mounting plate 203a. In this way, the position of the shading plate 202a on the mounting plate 203a can be adjusted.

[0036] See Figure 1 , Figure 7 and Fig. 9 As shown, a camera 304 is installed on one end of the mounting column 303, and the camera 304 is used to collect images of the wire output from the wire guide roller 103. The robot arm 302 has at least two joint groups that can achieve three-dimensional adjustment. This setting can adjust the position of the mounting column 303 with greater space and sensitivity, thereby improving the convenience of inspection and photography. Fig.11 In order to take pictures of the silk thread from the wire guide roller 103, both ends of the mounting column 303 are spirally sleeved with threaded columns 303a, and a clamping frame 304a is fixed on one end face of one of the threaded columns 303a, and the clamping frame 304a is used to clamp and fix the camera 304, so that the camera 304 can be clamped and disassembled; preferably, the camera 304 is a customized 2500W high-definition global camera 304, with a frame rate of 4.5 frames, a dynamic range of 63dB, and a signal-to-noise ratio of 36dB; the lens is a customized 500W-2500W resolution, 8mm-25mm lens, a field of view angle D: 20.32°, H: 16.77°, V: 11.24°; flange back focus: 17.526mm.

[0037] The image processing module is used to perform image cropping and reduction processing on the photos collected by the camera 304, and then the image comparison module compares the swing amplitude of the silk thread between the standard photos stored in the storage module and the processed photos. When the swing amplitude is abnormal, the control module performs abnormal processing actions, and the abnormal processing actions include alarming and picking up the silk thread; Wire defects include broken wires, doubled wires and skipped wires, which are shown in the following characteristics in the picture: Broken wire: Broken wire will cause the shaft to be entangled, which is reflected in the swing amplitude, with a bundle of wire missing; Parallel silk: one strand of silk thread is missing, two strands are combined into one strand, which is reflected in the swing amplitude, with one strand of silk thread missing; Skipped wire: The overall number of silk threads is the same, but one or more silk threads jump from bundle a to bundle b in two adjacent bundles of silk threads, resulting in the situation where the overall number is the same, but bundle a has fewer silk threads and bundle b has more silk threads. This is reflected in the swing amplitude, and the width of the swing of the two adjacent silk threads is inconsistent; The processing steps of the image processing module are: 1. Initialize the program, set the control parameters, and read the deep learning model; 2. Read the image and perform Gaussian filtering on the image to eliminate the interference of noise; 3. Crop the area of ​​interest, where the areas are predefined; 4. Scale the width and height of the cropped area image to the specified size; In addition, it should be noted that there are three methods to choose from for scaling images: nearest neighbor interpolation, bilinear interpolation and cubic interpolation. The present invention prefers nearest neighbor interpolation, and its working principle includes determining the scaling factor, calculating the position of the new pixel, finding the nearest neighbor, assigning values ​​and converting the graphic type. Because it is a prior art, it will not be described here. Example 2

[0038] Reference Figure 7 , Fig. 9 and Fig.10 , which is the second embodiment of the present invention, is based on the previous embodiment, and the difference is that, in order to facilitate the timely picking out of the problematic silk thread when the swing amplitude is abnormal, the labor intensity of the staff is reduced.

[0039] Specifically, a hooking assembly 305 is fixedly provided on one end face of another threaded column 303a, and the hooking assembly 305 includes a fixing rod 305a, a T-shaped rod 305b, a connecting plate 305c and a linkage plate 305d. The two fixing rods 305a are arranged in an array in the horizontal direction, and a gear plate 305a-2 is fixedly provided on one end of the fixing rod 305a, a linkage plate 305d is provided between the two gear plates 305a-2, and two side faces of the linkage plate 305d are respectively provided with teeth 305d-1 for meshing with the two gear plates 305a-2, an L-shaped rod 305c-4 is slidably sleeved on the fixing rod 305a, and the other end of the L-shaped rod 305c-4 is fixedly provided on the connecting plate 305c, and the connecting plate 305c is fixedly connected to the end face of the threaded column 303a by bolts to facilitate disassembly and maintenance; A connecting piece 305d-2 is fixedly provided at the lower end of one side of the linkage plate 305d, a T-shaped column 305c-2 is slidably sleeved on the connecting piece 305d-2, and the lower end of the T-shaped column 305c-2 is fixedly provided on the connecting plate 305c, a second spring 305c-3 is slidably sleeved on the T-shaped column 305c-2 above the connecting piece 305d-2, thereby realizing the reset of the linkage plate 305d, and an electromagnetic plate 305c-1 is fixedly provided on the connecting plate 305c above the linkage plate 305d; When the above-mentioned arrangement is in use, the energization of the electromagnetic plate 305c-1 can generate magnetism to magnetically adsorb the linkage plate 305d. Under the adsorption of the electromagnetic plate 305c-1, the linkage plate 305d will move toward the electromagnetic plate 305c-1 along the axial direction of the T-shaped column 305c-2. Because the tooth 305d-1 on the linkage plate 305d is meshing with the gear plate 305a-2, the gear plate 305a-2 can drive the fixed rod 305a to rotate under the drive of the linkage plate 305d. When the fixed rod 305a moves to both sides of the silk thread, the fixed rod 305a will drive the wire hook 305b-1 at one end of the T-shaped rod 305b to rotate, thereby hooking onto the silk thread. Then, under the drive of the robotic arm 302, the problematic silk thread can be picked up, making it convenient for the staff to handle it.

[0040] Furthermore, in actual use, the electrical components of the device are controlled by a control module, and in actual use, the inspection mechanism 300 also includes an alarm, which can sound an alarm to remind the staff when abnormalities in the thread are detected. Example 3

[0041] Reference Fig. 9 and Fig.10 , which is the third embodiment of the present invention, is based on the previous embodiment, but is different in that this embodiment is proposed to facilitate better wire picking without causing interference to the wire due to the installation column 303.

[0042] Specifically, a T-shaped slot 305a-1 is provided in the fixing rod 305a, and the T-shaped rod 305b is slidably sleeved in the T-shaped slot 305a-1, a wire hook 305b-1 is integrally formed on one end of the T-shaped rod 305b located outside the T-shaped slot 305a-1, a piston column 305b-2 is fixedly provided on one end of the T-shaped rod 305b located inside the T-shaped slot 305a-1, and an air intake pipe 305a-3 connected to the T-shaped slot 305a-1 is fixedly provided on the side wall of the fixing rod 305a between the piston column 305b-2 and the gear plate 305a-2; a first spring 305b-3 is slidably sleeved on the T-shaped rod 305b located in the T-shaped slot 305a-1, so as to realize the reset of the T-shaped rod 305b in the T-shaped slot 305a-1; When the above arrangement is in use, the air inlet pipe 305a-3 is connected to an external air pump through a hose. When it is necessary to pick up wire, gas is blown into the air inlet pipe 305a-3 through the air pump. The gas in the T-slot 305a-1 will push the piston column 305b-2 to move in the T-slot 305a-1, thereby adjusting the length of the T-rod 305b extending from the fixed rod 305a, and the wire hook 305b-1 can better hook the wire. In actual use, the different lengths of the T-rod 305b extending out can be achieved by controlling the different amounts of gas entering the two T-slots 305a-1, thereby achieving sufficient wire hooking. Example 4

[0043] Reference Figure 1 and Figure 8 , which is the fourth embodiment of the present invention, is based on the previous embodiment, except that this embodiment is proposed in order to more conveniently implement the present invention and enable the traveling vehicle 301 to better travel on the guide rail frame 400.

[0044] Specifically, a support plate 301b is embedded in the middle of the bottom surface of the traveling vehicle 301, and guide plates 301a are fixedly provided on the bottom surface of the traveling vehicle 301 on both sides of the support plate 301b along the traveling direction, and the guide plates 301a are loosely fitted in the U-shaped groove of the guide frame 400, so as to play a role of limiting and guiding when the traveling vehicle 301 is traveling; the guide frame 400 is a grid-shaped structure arranged outside a plurality of wire winding mechanisms 100, so as to enable the traveling vehicle 301 to travel in the entire workshop, and the intersection position of the grid-shaped guide frame 400 is barrier-free; When the above arrangement is in use, when the traveling vehicle 301 moves to the intersection position of the guide rail frame 400, the support plate 301b moves downward to lift up the entire inspection mechanism 300, and then the entire traveling vehicle 301 is rotated by the rotating motor to realize the switching of the traveling vehicle 301 at the corner position of the guide rail frame 400. Its specific working principle can still be realized without creative labor, so it will not be elaborated here. Example 5

[0045] This embodiment is the fifth embodiment of the present invention, and provides a method for using a spandex yarn defect visual inspection device based on image detection. Specifically, the inspection is performed according to the following steps: S1: The inspection mechanism 300 moves on the guide rail frame 400 according to the planned route; S2: After walking to the predetermined position, the robot arm 302 controls the camera 304 to move to the position above the guide roller 103 where the picture needs to be taken; S3: through the reflection of the light emitted by the light source generator 201b on the silk thread, the camera 304 will take pictures of the silk thread for a certain period of time; S4: the image processing module processes the collected image, and then the image comparison module determines the swing state of the silk thread during transmission by comparing it with the standard photo; S5: When the swing amplitude is abnormal, the control module takes abnormal processing action.

[0046] In addition, it should be noted that the components not described in detail in this article are prior art.

[0047] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0049] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A visual inspection device for spandex thread defects based on image detection, characterized in that: include, A light supply mechanism (200) comprising a dimming component (201) and a shading component (202), wherein the number of the light supply mechanism (200) is equal to the number of secondary wire rollers (103) and they are arranged in a one-to-one correspondence, a plurality of secondary wire rollers (103) are arranged in an array along a horizontal direction, a shading plate (202a) in the shading component (202) is arranged below the secondary wire roller (103) along the axial direction of the secondary wire roller (103), the dimming component (201) is arranged on the shading plate (202a) close to the side of the secondary wire roller (103) from which the wire emerges, the dimming component (201) comprising a light source generator (201b) and a plano-concave mirror (201c), and the light generated by the light source generator (201b) is irradiated onto the wire output from the secondary wire roller (103) after passing through the plano-concave mirror (201c); The inspection mechanism (300) comprises a traveling vehicle (301), a mechanical arm (302) fixedly mounted on the top surface of the traveling vehicle (301), and a mounting column (303) fixedly mounted on the upper end of the mechanical arm (302); a camera (304) is mounted on one end of the mounting column (303), and the camera (304) is used to collect images of the silk thread output from the wire guide roller (103); and the mechanical arm (302) has at least two joint groups capable of realizing three-dimensional adjustment; A guide rail frame (400), wherein the guide rail frame (400) is buried in the bottom surface, and a vertical cross section of the guide rail frame (400) is arranged in a U shape; and The processing control mechanism comprises a control module, an image processing module, an image comparison module and a storage module. The image processing module is used to perform image cropping and reduction processing on the photos collected by the camera (304). Then, the image comparison module compares the thread swing amplitude between the standard photos stored in the storage module and the processed photos. When the swing amplitude is abnormal, the control module performs an abnormal processing action.

2. The spandex thread defect visual inspection device based on image detection as claimed in claim 1, characterized in that: The light supply mechanism (200) further comprises a support assembly (203), wherein the support assembly (203) comprises a mounting plate (203a), a telescopic rod (203b) and a support rod (203c); The dimming component (201) comprises a base plate (201a) and a sliding plate (201d); a plug-in frame (201a-1) is fixedly provided on the front end surface of the base plate (201a), and the plug-in frame (201a-1) is used for plugging in a plano-concave mirror (201c); a sliding groove (201a-2) is provided on the top surface of the base plate (201a) along the front-back direction; a fixed plate (201b-1) is fixedly sleeved on the outer side of the light source generator (201b); a sliding block (201b-2) is fixedly provided on the bottom surface of the fixed plate (201b-1), and the sliding block (201b-2) is loosely fitted in the sliding groove (201a-2); a screw column (201a-4) is spirally sleeved on the sliding block (201b-2), and the front and rear ends of the screw column (201a-4) are both rotatably sleeved on the base plate (201a); The shading component (202) comprises a placement plate (202b), and a rectangular through groove (202b-1) for inserting one end of the shading plate (202a) is provided on the placement plate (202b) along the front-to-back direction, and an adjusting bolt (202b-4) is spirally sleeved on the top surface of the placement plate (202b), and the lower end of the adjusting bolt (202b-4) abuts against the top surface of the shading plate (202a).

3. A visual inspection device for spandex thread defects based on image detection as claimed in claim 2, characterized in that: Telescopic rods (203b) are symmetrically fixed on both sides of the bottom surface of the mounting plate (203a), and the lower ends of the telescopic rods (203b) are slidably sleeved on the support rods (203c), and a locking bolt is spirally fitted on one side surface of the upper end of the support rod (203c), and one end of the locking bolt abuts against the outer side wall of the telescopic rod (203b); A convex disk (201a-3) is fixedly provided in the middle of the bottom surface of the base plate (201a), and a convex groove (201d-2) for clearance fit of the convex disk (201a-3) is provided on the top surface of the sliding plate (201d), a locking bolt is spirally sleeved on the base plate (201a), and the lower end of the locking bolt abuts against the top surface of the sliding plate (201d), a first L-shaped plate (201d-1) is symmetrically fixedly provided on the front and rear sides of the bottom of the sliding plate (201d), and the first L-shaped plate (201d-1) is clamped on the outside of the mounting plate (203a), a locking bolt is spirally sleeved on the sliding plate (201d), and the lower end of the locking bolt abuts against the top surface of the mounting plate (203a); A second L-shaped plate (202b-2) is symmetrically fixedly provided on the front and rear sides of the bottom of the placement plate (202b), and the second L-shaped plate (202b-2) is clamped on the outside of the mounting plate (203a); an extension plate (202b-3) is fixedly provided at the lower end of one side surface of the placement plate (202b); a locking bolt is spirally sleeved on the extension plate (202b-3), and the lower end of the locking bolt abuts against the top surface of the mounting plate (203a).

4. A spandex yarn defect visual inspection device based on image detection as claimed in claim 1 or 3, characterized in that: Both ends of the installation column (303) are spirally sleeved with threaded columns (303a), and a clamping frame (304a) is fixedly provided on one end surface of one of the threaded columns (303a), and the clamping frame (304a) is used to clamp and fix the camera (304).

5. The spandex thread defect visual inspection device based on image detection as claimed in claim 4, characterized in that: A thread hook assembly (305) is fixedly provided on one end surface of the other threaded column (303a), the thread hook assembly (305) comprising a fixed rod (305a), a T-shaped rod (305b), a connecting plate (305c) and a linkage plate (305d), the two fixed rods (305a) are arranged in an array along a horizontal direction, and a gear plate (305a-2) is fixedly provided at one end of the fixed rod (305a), and a position is set between the two gear plates (305a-2). A linkage plate (305d) is provided, and teeth (305d-1) for meshing with two gear plates (305a-2) are respectively provided on both side surfaces of the linkage plate (305d); an L-shaped rod (305c-4) is slidably sleeved on the fixed rod (305a), and the other end of the L-shaped rod (305c-4) is fixedly arranged on the connecting plate (305c); and the connecting plate (305c) is fixedly connected to the end surface of the threaded column (303a) by means of bolts; A connecting plate (305d-2) is fixedly provided at the lower end of one side surface of the linkage plate (305d); a T-shaped column (305c-2) is slidably sleeved on the connecting plate (305d-2); the lower end of the T-shaped column (305c-2) is fixedly provided on the connecting plate (305c); a second spring (305c-3) is slidably sleeved on the T-shaped column (305c-2) above the connecting plate (305d-2); and an electromagnetic plate (305c-1) is fixedly provided on the connecting plate (305c) above the linkage plate (305d).

6. The spandex thread defect visual inspection device based on image detection as claimed in claim 5, characterized in that: The fixed rod (305a) is provided with a T-shaped groove (305a-1), and the T-shaped rod (305b) is slidably sleeved in the T-shaped groove (305a-1); a wire hook (305b-1) is integrally formed on one end of the T-shaped rod (305b) located outside the T-shaped groove (305a-1); a piston column (305b-2) is fixedly provided on one end of the T-shaped rod (305b) located inside the T-shaped groove (305a-1); and an air intake pipe (305a-3) connected to the T-shaped groove (305a-1) is fixedly provided on the side wall of the fixed rod (305a) between the piston column (305b-2) and the gear plate (305a-2); A first spring (305b-3) is slidably sleeved on the T-shaped rod (305b) located in the T-shaped groove (305a-1).

7. A visual inspection device for spandex thread defects based on image detection as claimed in claim 1, 3 or 6, characterized in that: A support plate (301b) is embedded in the middle of the bottom surface of the traveling vehicle (301), and guide rail plates (301a) are fixedly provided on the bottom surface of the traveling vehicle (301) on both sides of the support plate (301b) along the traveling direction, and the guide rail plates (301a) are loosely fitted in the U-shaped groove of the guide rail frame (400).

8. The spandex yarn defect visual inspection device based on image detection as claimed in claim 7, characterized in that: The guide rail frame (400) is in a grid shape and is arranged outside a plurality of wire winding mechanisms (100).

9. A method for using a spandex yarn defect visual inspection device based on image detection, characterized in that: The spandex thread defect visual inspection device based on image detection as described in any one of claims 1 to 8 performs inspection according to the following steps; S1: The inspection mechanism (300) walks on the guide rail frame (400) according to the planned route; S2: After walking to the predetermined position, the robot arm (302) controls the camera (304) to move to the position above the guide roller (103) where the image needs to be taken; S3: through the reflection of the light emitted by the light source generator (201b) on the silk thread, the camera (304) takes pictures of the silk thread for a certain period of time; S4: the image processing module processes the collected image, and then the image comparison module determines the swing state of the silk thread during transmission by comparing it with the standard photo; S5: When the swing amplitude is abnormal, the control module takes abnormal processing action.

Images