An visual inspection device and method for spandex silk thread defects based on image detection

Abstract

The present invention relates to the technical field of spandex filament detection, in particular to a visual inspection device and method for spandex filament path defects based on image detection, including a light supply mechanism, which includes a light adjustment component and a light shielding component. The number of the light supply mechanisms is equal to and corresponds one by one to the number of the slave guide rollers. A plurality of slave guide rollers are arranged in a horizontal array. The light shielding plate in the light shielding component is arranged below the slave guide roller along the axis direction of the slave guide roller; an inspection mechanism, which includes a walking vehicle, a robotic arm fixed on the top surface of the walking vehicle, and a mounting column fixed on the upper end of the robotic arm; a guide rail frame, which is buried in the bottom surface, and the vertical cross-section of the guide rail frame is U-shaped; and a processing and control mechanism, which includes a control module, an image processing module, an image comparison module, and a storage module. This inspection device can realize large-range and highly automated spandex filament inspection in the entire workshop. The entire detection process is simple to operate and has high accuracy, and can effectively avoid spandex filament defects.

Description

Technical Field

[0001] The present invention relates to the technical field of spandex fiber splitting detection, and particularly relates to a visual inspection device and method for spandex silk path defects based on image detection. Background Art

[0002] Spandex is short for polyurethane fiber, an elastic fiber and a common raw material for clothing products. At present, due to the relatively high production technology requirements for low-denier single-filament spandex yarn, its market price is more than 20% higher than that of spandex multifilament. In the production of low-denier single-filament spandex yarn, it can be directly spun or obtained by splitting spandex multifilament.

[0003] For example, the existing published document CN220284303U - A special device for spandex fiber splitting and the existing published document CN204959128U - An improved special device for spandex fiber splitting both disclose a device for spandex fiber splitting. However, in the actual spandex fiber splitting process, defects in the spandex filaments after splitting often occur (including broken filaments, merged filaments and skipped filaments). To address such problems, during the spandex fiber splitting process, workers need to hold a flashlight to illuminate the spandex filaments from the side of the spandex textile machine, and judge whether the state of the spandex filaments is qualified by the presence or absence of the filaments and the abnormality of the swing amplitude. However, in industrial production, due to the large number of devices, manual inspection will greatly increase the labor intensity of workers, and manual inspection also has the problem of low work efficiency.

[0004] To address such problems, the existing published document CN207113927U - A silk detection device was also retrieved. This kind of silk detection device can reduce the labor intensity of workers to a certain extent, but the existing silk detection device can only detect single-strand wires, and cannot pick out the wires with problems after the detection. Subsequently, workers still need to handle them.

[0005] Therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the Invention

[0006] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract and the title. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0007] In view of the above problem that manual inspection of spandex filament defects is required after splitting in the existing spandex, a visual inspection device for spandex silk path defects based on image detection is proposed.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: A visual inspection device for spandex silk path defects based on image detection, comprising: a light supply mechanism, including a light adjustment component and a light shielding component. The number of light supply mechanisms is equal to and corresponds one by one with the number of slave guide rollers. A plurality of slave guide rollers are arranged in a horizontal array. The light shielding plate in the light shielding component is arranged below the slave guide roller along the axis direction of the slave guide roller. The light adjustment component is arranged on the side of the light shielding plate close to the wire outlet of the slave guide roller. The light adjustment component includes a light source generator and a plano-concave mirror, and the light generated by the light source generator is irradiated on the silk thread output from the slave guide roller after passing through the plano-concave mirror; an inspection mechanism, including a walking vehicle, a robotic arm fixedly arranged on the top surface of the walking vehicle, and a mounting column fixedly arranged at the upper end of the robotic arm. A camera is installed at one end of the mounting column, and the camera is used for taking pictures of the silk thread output from the slave guide roller. The robotic arm has at least two joint groups that can achieve three-dimensional adjustment; a guide rail frame, which is buried in the bottom surface, and the vertical cross-section of the guide rail frame is arranged in a U shape; and a processing and control mechanism, including a control module, an image processing module, an image comparison module, and a storage module. The image processing module is used for performing image cropping and reduction processing on the photos collected by the camera. Then, the image comparison module compares the standard photos stored in the storage module with the processed photos for the silk thread swing amplitude comparison. When the swing amplitude is abnormal, the control module performs an abnormal processing action.

[0009] The beneficial effects of the present invention are as follows: When this inspection device is in use, a light band is emitted from one side of the slave guide roller through the light adjustment component. After this light band is irradiated on the spandex silk, the camera takes pictures of the silk thread on the slave guide roller for a period of time due to the reflection of the spandex silk. The image comparison module compares the swing amplitude shown by 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 there is a lack of a swinging silk thread, the control module performs an abnormal processing action. This setting method can synchronously detect multiple strands of silk threads on one slave guide roller, and the cooperation between the walking vehicle and the guide rail frame can enable the inspection mechanism to perform inspections throughout the workshop, effectively improving the detection efficiency during silk thread splitting, and with low labor intensity.

[0010] As a preferred solution of a visual inspection device for spandex silk path defects based on image detection according to the present invention, the following is provided: The light supply mechanism further includes a support assembly, and the support assembly includes a mounting plate, a telescopic rod, and a support rod; The light adjustment assembly includes a base plate and a sliding plate. An insertion frame is fixedly provided on the front end face of the base plate, and the insertion frame is used for inserting and fitting a plano-concave mirror. A sliding groove is opened on the top surface of the base plate in the front-rear direction. A fixing 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 fixing plate, and the sliding block is in clearance fit 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 light shielding assembly includes a placement plate, and a rectangular through groove for inserting one end of a light shielding plate is opened on the placement plate in the front-rear direction. An adjustment bolt is spirally sleeved on the top surface of the placement plate, and the lower end of the adjustment bolt abuts against the top surface of the light shielding plate.

[0011] As a preferred solution of a visual inspection device for spandex silk path defects based on image detection according to the present invention, the following is provided: Symmetrically fixed on both sides of the bottom surface of the mounting plate are telescopic rods, and the lower ends of the telescopic rods are slidably sleeved on the support rod. A locking bolt is spirally engaged 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 fixedly provided in the middle of the bottom surface of the base plate, and a convex groove for clearance fit with 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 lower end of the locking bolt abuts against the top surface of the sliding plate. Symmetrically fixed on both the front and rear sides of the bottom surface of the sliding plate are first L-shaped plates, and the first L-shaped plates are clamped on the outside of the mounting plate. A locking bolt is spirally sleeved on the sliding plate, and the lower end of the locking bolt abuts against the top surface of the mounting plate; Symmetrically fixed on both the front and rear sides of the bottom surface of the placement plate are second L-shaped plates, and the second L-shaped plates are clamped on the outside of the mounting plate. An extension plate is fixedly provided at the lower end position of one side surface of the placement plate. A locking bolt is spirally sleeved on the extension plate, and the lower end of the locking bolt abuts against the top surface of the mounting plate.

[0012] As a preferred solution of a visual inspection device for spandex silk path defects based on image detection according to the present invention, the following is provided: Threaded columns are spirally sleeved at both ends of the mounting column, and a clamping bracket for clamping and fixing the camera is fixedly provided on one end surface of one of the threaded columns.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] In addition, the present invention also provides the following technical solution: a method for using a visual inspection device for defects in spandex silk routes based on image detection. The above-mentioned visual inspection device for defects in spandex silk routes based on image detection performs inspections according to the following steps;

[0019] S1: The inspection mechanism walks on the guide rail frame according to the planned route;

[0020] S2: After walking to the predetermined position, the robotic arm controls the camera to move above the slave wire guide roller that needs to be photographed;

[0021] S3: Through the reflection of the light emitted by the light source generator on the wire, the camera takes pictures of the wire for a certain period of time;

[0022] S4: The image processing module processes the collected images, and then the image comparison module determines the swing state of the wire during transmission by comparing with the standard photos;

[0023] S5: When the swing amplitude is abnormal, the control module makes abnormal handling actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0025] Figure 1 is the overall structural schematic diagram of a visual inspection device for defects in spandex silk routes based on image detection in the present invention.

[0026] Figure 2 is the schematic diagram of the cooperation between the wire winding mechanism and the light supply mechanism in the present invention.

[0027] Figure 3 is the overall structural schematic diagram of the light adjustment component in the present invention.

[0028] Figure 4 is the exploded view of the light adjustment component in the present invention.

[0029] Figure 5 is the overall structural schematic diagram of the light shielding component in the present invention.

[0030] Figure 6 is the overall structural schematic diagram of the wire winding mechanism and the support component in the present invention.

[0031] Figure 7 is the overall structural schematic diagram of the inspection mechanism in the present invention.

[0032] Figure 8 It is a schematic diagram of the bottom structure of the inspection mechanism in the present invention.

[0033] Figure 9 It is a schematic diagram of the cooperation between the thread hooking component and the thread column in the present invention.

[0034] Figure 10 It is an exploded view of the wire hooking component in the present invention.

[0035] Figure 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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

[0040] 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.

[0041] Specifically, it includes a light supply mechanism 200, which includes a dimming component 201 and a light shielding component 202; an inspection mechanism 300, which includes a walking vehicle 301, a robotic arm 302 fixedly arranged on the top surface of the walking vehicle 301, and a mounting column 303 fixedly arranged at the upper end of the robotic arm 302; a guide rail frame 400, which is buried in the bottom surface, and the vertical cross-section of the guide rail frame 400 is U-shaped; and a processing and control mechanism, which includes a control module, an image processing module, an image comparison module, and a storage module;

[0042] The wire winding mechanism 100 includes an L-shaped machine base table 101, a main wire guiding roller 102 with one end connected to the vertical plate of the machine base table 101, slave wire guiding rollers 103 arranged in a horizontal array above one side of the main wire guiding roller 102, and two winding rollers 104 arranged below each slave wire guiding roller 103. Multiple strands of silk threads bypass above the main wire guiding roller 102 in a side-by-side manner, and then each strand of silk thread is split to each slave wire guiding roller 103, and finally the winding rollers 104 wind the silk threads on the slave wire guiding rollers 103.

[0043] See details in Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in

[0044] The dimming component 201 includes a base plate 201a and a sliding plate 201d. An insertion frame 201a-1 is fixedly provided on the front end face of the base plate 201a, and the insertion frame 201a-1 is used for the insertion of the plano-concave mirror 201c. A sliding groove 201a-2 is formed in the top surface of the base plate 201a in the front-back direction. A fixing plate 201b-1 is fixedly sleeved outside the light source generator 201b. A sliding block 201b-2 is fixedly provided on the bottom surface of the fixing plate 201b-1, and the sliding block 201b-2 is in clearance fit 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. In this way, 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-back direction;

[0045] The light-shielding component 202 includes a placement plate 202b, and a rectangular through groove 202b-1 for the insertion of one end of the light-shielding plate 202a is formed in the placement plate 202b in the front-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 abuts against the top surface of the light-shielding plate 202a. In this way, the clamping and fixing of the light-shielding plate 202a can be realized. The light-shielding plate 202a mainly plays a role in shielding light to prevent other light from interfering with the light generated by the light source generator 201b. In actual use, a cushion plate can also be filled in the rectangular through groove 202b-1 below the light-shielding plate 202a to realize the adjustment of the position of the light-shielding plate 202a; Preferably, the size of the light-shielding plate 202a is 1300 mm in length × 150 mm in width;

[0046] The light supply mechanism 200 further includes a support component 203. The support component 203 includes a mounting plate 203a, a telescopic rod 203b, and a support rod 203c. Telescopic rods 203b are symmetrically and fixedly provided 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 rod 203c. A locking bolt is spirally engaged 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. In this way, the position adjustment of the telescopic rod 203b relative to the support rod 203c in the vertical direction can be realized, and thus the position adjustment of the dimming component 201 and the light-shielding component 202 in the vertical direction can be realized.

[0047] Further, 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 with the convex disk 201a-3 is formed on the top surface of the sliding plate 201d. A locking bolt is screwed onto the base plate 201a, and the lower end of the locking bolt abuts against the top surface of the sliding plate 201d. In this way, the angle of the light emitted by the light source generator 201b can be adjusted, and the base plate 201a rotates horizontally relative to the sliding plate 201d. In this way, it can be realized that the front and rear sides of the bottom surface of the sliding plate 201d are symmetrically and fixedly provided with first L-shaped plates 201d-1, and the first L-shaped plates 201d-1 are clamped on the outside of the mounting plate 203a. A locking bolt is screwed onto the sliding plate 201d, and the lower end of the locking bolt abuts against the top surface of the mounting plate 203a. This setting can realize the adjustment of the position of the sliding plate 201d driving the light source generator 201b on the mounting plate 203a.

[0048] Further, the front and rear sides of the bottom surface of the placing plate 202b are symmetrically and fixedly provided with second L-shaped plates 202b-2, and the second L-shaped plates 202b-2 are clamped on the outside of the mounting plate 203a. An extension plate 202b-3 is fixedly provided at the lower position of one side surface of the placing plate 202b. A locking bolt is screwed onto 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 adjustment of the position of the light shielding plate 202a on the mounting plate 203a can be realized.

[0049] See Figure 1 、 Figure 7 and Figure 9 As shown, a camera 304 is installed at one end of the mounting column 303, and the camera 304 is used for collecting pictures of the silk thread output from the wire guiding roller 103. The robotic 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 a large space and high sensitivity, improving the convenience of inspection and photographing. Such as Figure 11 is a photo of the silk thread on the wire guiding roller 103 taken. Threaded columns 303a are screwed onto both ends of the mounting column 303. A clamping bracket 304a is fixedly provided on the end surface of one of the threaded columns 303a, and the clamping bracket 304a is used for clamping and fixing the camera 304. In this way, the clamping and disassembly of the camera 304 can be realized; 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, with a field of view angle D: 20.32°, H: 16.77°, V: 11.24°; the flange back focus: 17.526mm.

[0050] The image processing module is used to crop and reduce the size of the photos collected by the camera 304. Then, the image comparison module compares the standard photos stored in the storage module with the processed photos for the silk thread swing amplitude. When the swing amplitude is abnormal, the control module performs abnormal handling actions, including alarming and picking up the silk thread;

[0051] Silk thread defects include broken filaments, merged filaments, and skipped filaments, which exhibit the following characteristics in the pictures:

[0052] Broken filament: For a broken filament, the shaft will be wound. In terms of the swing amplitude, one bundle of silk threads is missing;

[0053] Merged filament: One bundle of silk threads is missing, and two bundles are merged into one. In terms of the swing amplitude, one bundle of silk threads is missing;

[0054] Skipped filament: The overall number of silk threads is the same. Among two adjacent bundles of silk threads, single or multiple silk threads jump from bundle a to bundle b, resulting in the overall number being the same, with bundle a having fewer silk threads and bundle b having more silk threads. In terms of the swing amplitude, the swing amplitudes of two adjacent silk threads are not of the same width;

[0055] The processing steps of the image processing module are as follows: 1. Initialize the program, set control parameters, and read the deep learning model; 2. Read the image and perform Gaussian filtering on the graph to eliminate the interference of noise points; 3. Crop the region of interest, where the regions are all predefined; 4. Scale the width and height of the cropped region image to the specified size;

[0056] In addition, it should be noted that there are three methods to choose for scaling the picture: nearest neighbor interpolation, bilinear interpolation, and cubic interpolation. The present invention preferably uses 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 graphic type conversion. Since it is an existing technology, it will not be elaborated here. Embodiment 2

[0057] Refer to Figure 7 、 Figure 9 and Figure 10 This is the second embodiment of the present invention. Based on the previous embodiment, the difference is that in order to facilitate picking out the problematic silk thread in time when the swing amplitude is abnormal, thereby reducing the labor intensity of the staff.

[0058] Specifically, a wire - hooking component 305 is fixedly arranged on one end face of another threaded post 303a. The wire - hooking component 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 a horizontal array, and a gear disc 305a - 2 is fixedly arranged at one end of the fixing rod 305a. A linkage plate 305d is arranged between the two gear discs 305a - 2, and tooth strips 305d - 1 for meshing with the two gear discs 305a - 2 are respectively arranged on both side faces of the linkage plate 305d. 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 arranged on the connecting plate 305c. The connecting plate 305c is fixedly connected to the end face of the threaded post 303a by bolts, so as to facilitate disassembly and maintenance;

[0059] A connecting piece 305d - 2 is fixedly arranged at the lower position of one side face of the linkage plate 305d. A T - shaped post 305c - 2 is slidably sleeved on the connecting piece 305d - 2, and the lower end of the T - shaped post 305c - 2 is fixedly arranged on the connecting plate 305c. A second spring 305c - 3 is slidably sleeved on the T - shaped post 305c - 2 above the connecting piece 305d - 2, so as to realize the reset of the linkage plate 305d. An electromagnetic plate 305c - 1 is fixedly arranged on the connecting plate 305c above the linkage plate 305d;

[0060] When the above - mentioned device is in use, when the electromagnetic plate 305c - 1 is energized, it 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 along the axis direction of the T - shaped post 305c - 2 towards the electromagnetic plate 305c - 1. Also, due to the meshing setting of the tooth strips 305d - 1 on the linkage plate 305d and the gear discs 305a - 2, driven by the linkage plate 305d, the gear discs 305a - 2 can drive the fixing rods 305a to rotate. When the fixing rods 305a move to both sides of the silk thread, the fixing rods 305a will drive the silk hooks 305b - 1 at one end of the T - shaped rod 305b to rotate, so as to hook onto the silk thread. Then, driven by the robotic arm 302, the problematic silk thread can be picked up, which is convenient for the staff to process.

[0061] Furthermore, in actual use, the electrical components of this device are controlled by a control module. In actual use, the inspection mechanism 300 further includes an alarm. When the silk thread is detected to be abnormal, an alarm can be sent through the alarm to remind the staff. Embodiment 3

[0062] Referring to Figure 9 and Figure 10 , this is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that in order to pick up the silk thread more conveniently and without interfering with the silk thread due to the installation post 303, this embodiment is proposed.

[0063] 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;

[0064] 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

[0065] 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.

[0066] 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;

[0067] When the above settings are in use, when the walking vehicle 301 moves to the intersection position of the guide rail frame 400, the support disk 301b moves downward to lift the entire inspection mechanism 300, and then the entire walking vehicle 301 is rotated by the rotation motor to realize the switching of the walking 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. Embodiment 5

[0068] This embodiment is the fifth embodiment of the present invention. This embodiment provides a usage method of a visual inspection device for spandex silk thread defects based on image detection. Specifically, the inspection is carried out according to the following steps;

[0069] S1: The inspection mechanism 300 walks on the guide rail frame 400 according to the planned route;

[0070] S2: After walking to the predetermined position, the robotic arm 302 will control the camera 304 to move above the slave godet roller 103 that needs to be photographed;

[0071] 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;

[0072] S4: The image processing module processes the collected images, and then the image comparison module determines the swing state of the silk thread during transmission by comparing with the standard photo;

[0073] S5: When the swing amplitude is abnormal, the control module makes an abnormal handling action.

[0074] In addition, it should be noted that the components not described in detail in this article are prior art.

[0075] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (e.g., the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, changes in color, orientation, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0076] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present invention or those that are not relevant to the implementation of the present invention).

[0077] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by 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