Cloth detection device and method based on visual detection

Abstract

The application relates to the technical field of cloth detection, in particular to a cloth detection device and method based on visual detection, which comprises two supports, two dust removal boxes, two detection boxes, a synchronous moving mechanism, a clutch mechanism and a dust removal mechanism. The synchronous moving mechanism comprises a synchronous assembly and a first driving structure. The synchronous assembly comprises a connecting rod arranged horizontally and connecting blocks arranged at the two ends of the connecting rod. The two ends of the connecting blocks are connected with the dust removal boxes and the detection boxes respectively. The first driving structure is used for driving the connecting rod to move at a constant speed in the same direction along the cloth conveying direction. The clutch mechanism is used for simultaneously driving the two dust removal boxes arranged in an up-down mode and the two detection boxes arranged in an up-down mode to move in opposite directions in the vertical direction. The dust removal mechanism is arranged in the dust removal box and is used for cleaning the cloth. The synchronous moving mechanism, the clutch mechanism and the dust removal mechanism are arranged, so that the cloth is prevented from being deformed due to the relative sliding with the dust removal boxes and the detection boxes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloth detection, in particular to a cloth detection device based on visual detection, and a detection method of the cloth detection device based on visual detection. BACKGROUND

[0002] In the field of modern textile industry, the quality detection of cloth production is crucial. With the continuous improvement of market requirements for cloth quality, timely and accurate detection of damage, defects and other problems on the surface of cloth has become a key link to ensure product quality and enhance enterprise competitiveness. At present, the traditional cloth detection method mostly relies on manual visual inspection or simple mechanical detection equipment. Manual detection has problems such as low efficiency, strong subjectivity, and non-uniform detection standards, which is difficult to meet the needs of large-scale industrial production.

[0003] The patent with publication number CN118817603B discloses a detection device for double-sided printed cloth. The double-sided printed cloth to be detected passes through the outer extrusion layer between the bottom detection box and the top detection box, the edge is embedded in the outer extrusion layer, and the two ends are positioned by the scraping plate. Then the cloth passes through the two inner extrusion layers and is clamped by the clamping plate and the arc-shaped plate to ensure stable transmission and correct position during detection. When the cloth passes through the outer extrusion layer, it extrudes the transmission belt, drives the gear and the driving shaft to rotate, and the driving shaft drives the top rod to frequently hit the double sides of the cloth through the transmission rod, shakes off the dust. The air pump on the bottom plate removes the dust shaken off in the dust removal chamber through the collection pipeline and the shunt pipeline through the dust removal hole to ensure the cleanliness of the cloth. The light source is installed on the top of the illumination chamber, and the photosensitive sensor is installed on the bottom support plate of the photosensitive chamber, which contains a photosensitive resistor element. When the cloth is normal, the blocking mechanism closes the illumination chamber and the photosensitive chamber. When the cloth surface has defects, damage or loose threads, the light in the illumination chamber enters the photosensitive chamber through the abnormal place, and the photosensitive sensor senses the change of light and generates an electric signal to determine whether the cloth is abnormal. After cleaning and detection, the cloth passes out of the detection box, and the industrial camera on the surface of the top detection box shoots the pattern on the surface of the cloth to complete the detection of the printed pattern with the help of the visual recognition system.

[0004] Although the above-mentioned scheme can accurately determine whether the cloth has defects, damage or loose threads, in order to improve the accuracy of detection effect in the detection box, external light interference needs to be avoided. Therefore, the cloth needs to be closely attached to the inner extrusion layer, which may cause friction between the cloth and the inner extrusion layer during transportation. When the clamping force of the inner extrusion layer on the cloth is large, the inner extrusion layer may pull and damage the cloth. SUMMARY

[0005] In view of the above problems, the application provides a cloth detection device based on visual detection, which avoids deformation of cloth caused by relative sliding of the cloth with respect to the dust removal box and the detection box by arranging a synchronous moving mechanism, a clutch mechanism and a dust removal mechanism.

[0006] To solve the problems in the prior art, the application provides a cloth detection device based on visual detection, which comprises two mutually parallel supports, two dust removal boxes arranged in an up-down manner and two detection boxes arranged in an up-down manner, wherein the dust removal boxes and the detection boxes are arranged between the two supports, the inner top of the detection box on the upper side is provided with a light source, the inner bottom of the detection box on the lower side is provided with a photosensitive sensor, and the device further comprises a synchronous moving mechanism, a clutch mechanism and a dust removal mechanism.

[0007] Preferably, the first driving structure comprises a mounting plate and a ring-shaped driving belt, the two ends of the mounting plate are connected with the two supports respectively, the ring-shaped driving belt is mounted on the mounting plate, at least two clamping blocks are arranged on the ring-shaped driving belt at equal intervals, and a V-shaped opening for butt joint with the connecting rod is formed in the clamping block.

[0008] Preferably, the synchronous moving mechanism further comprises a reset guide structure, the reset guide structure comprises two first guide rods and two connecting plates, the two first guide rods are arranged along the conveying direction of the cloth, and the two connecting blocks are slidably connected with the two first guide rods respectively, and the two ends of the connecting plate are connected with the end portions of the two first guide rods respectively.

[0009] Preferably, the two ends of the first guide rod are respectively provided with a first spring and a limiting ring, the two ends of the first spring are abutted with the connecting plate and the connecting block respectively, and the first spring is used for pushing the connecting block to reset along the first guide rod, and the limiting ring is fixedly mounted on the first guide rod and is used for limiting the moving range of the connecting block on the first guide rod.

[0010] Preferably, the synchronous moving mechanism has two, the two synchronous moving mechanisms are arranged on the upper side and the lower side of the cloth respectively, the synchronous moving mechanism on the upper side of the cloth is connected with the dust removal box and the detection box on the upper side, the synchronous moving mechanism on the lower side of the cloth is connected with the dust removal box and the detection box on the lower side, and the lengths of the dust removal box and the detection box in the advancing direction of the cloth are the same.

[0011] Preferably, the clutch mechanism has two, two clutch mechanisms are arranged on both sides of the cloth conveying direction respectively, the clutch mechanism comprises a crossbeam and two clutch structures; both ends of the crossbeam are connected with two supports respectively; two clutch structures are arranged at both ends of the crossbeam respectively, and the two clutch structures are connected with the connecting plates in the two synchronous moving mechanisms respectively.

[0012] Preferably, the clutch structure comprises a vertical plate, a V-shaped plate and two first transmission rods; both ends of the vertical plate are provided with vertical first slits; both ends of the V-shaped plate are provided with second slits; the two first transmission rods are connected with the two reset guide structures respectively, and the first transmission rods are in sliding connection with the first slits and the second slits.

[0013] Preferably, the clutch structure further comprises a second driving structure, the second driving structure is connected with the middle part of the V-shaped plate, and the second driving structure is used for driving the V-shaped plate to move along the crossbeam.

[0014] Preferably, the dust removal mechanism comprises a plurality of dust removal assemblies and a linkage driving assembly; the plurality of dust removal assemblies are arranged at equal intervals in the dust removal box; the linkage driving assembly is fixedly arranged below the dust removal box, and the linkage driving assembly is used for driving the dust removal assemblies to clean the cloth in the moving process.

[0015] A detection method of a cloth detection device based on visual detection, applied to a cloth detection device based on visual detection, comprising the following steps:

[0016] S1, at the initial position at the beginning of detection, the two dust removal boxes and the two detection boxes are in a state of mutual separation, and the first driving structure is in a separated state with the connecting rod;

[0017] S2, when starting detection, the clutch mechanism controls the two dust removal boxes and the two detection boxes to move towards each other, covering part of the cloth, at the same time, the first driving structure is connected with the connecting rod, the first driving structure drives the connecting rod to move along the conveying direction of the cloth, and the connecting rod drives the two dust removal boxes and the two detection boxes to move synchronously with the cloth, preventing the dust removal box, the detection box and the cloth from sliding relative to each other;

[0018] S3, the dust removal mechanism cleans the cloth in the moving process of the dust removal box;

[0019] S4, after the dust removal box and the detection box move to the preset position, the clutch mechanism drives the two dust removal boxes and the two detection boxes to separate from each other, and the first driving structure is separated from the connecting rod, and the dust removal box and the detection box are reset; the distance between the preset position and the initial position is less than the length of the dust removal box in the forward direction of the cloth.

[0020] S5, after the dust removal box and the detection box reset, the clutch mechanism controls the two dust removal boxes and the two detection boxes to abut each other again, at this time, the cloth range covered by the two detection boxes is the cloth range covered by the two dust removal boxes in the previous detection process;

[0021] S6, repeat the above process to realize continuous detection of the cloth.

[0022] The beneficial effects of the present application compared with the prior art are:

[0023] 1, the present application sets up synchronous moving mechanism, clutch mechanism and dust removal mechanism, the clutch mechanism controls the opening and closing of the dust removal box and the detection box, realizes the local coverage of the cloth to form a closed space during detection, and can drive the separation and reset after detection, which provides the basis for continuous detection, the dust removal mechanism cleans the cloth during the movement of the dust removal box, provides a clean cloth surface for the visual detection in the detection box, reduces the interference of impurities on the detection result, the connection and separation of the first driving structure in the synchronous moving mechanism and the connecting rod ensure the equal speed and same direction movement of the dust removal box, the detection box and the cloth, thereby avoiding the deformation of the cloth due to the relative sliding of the dust removal box and the detection box;

[0024] 2, the present application sets up mounting plate, ring drive belt and clamping block, the mounting plate is fixed with the support, which ensures the height stability of the ring drive belt and the clamping block, the V-shaped opening of the clamping block is connected with the connecting rod, which realizes the effective transmission of power and guarantees the equal speed and same direction movement of the dust removal box, the detection box and the cloth, avoiding the interference of relative sliding on detection, the clutch mechanism controls the reciprocating motion of the dust removal box and the detection box, which cooperates with the continuous operation of the ring drive belt to make the clamping block cycle in place, realizes the cycle connection of the connecting rod and the clamping block, thereby forming continuous driving of the dust removal box and the detection box, ensuring the uninterrupted operation of the cloth detection work;

[0025] 3, the present application sets up reset guide structure, when the dust removal box and the detection box move to the preset position, the clutch mechanism drives the first guide rod and the connecting plate to move away from the cloth, at this time, the second guide rod slides relative to the mounting plate, the second guide rod limits the moving direction of the first guide rod and the connecting plate, the connecting rod is separated from the clamping block, the connecting block slides reversely along the first guide rod and resets, in this process, through the limitation of the first guide rod, it ensures that the connecting block, the connecting rod and the dust removal box and the detection box can accurately return to the initial position, waiting for the next connection with the clamping block, thereby ensuring the accuracy of the connection between the first driving structure and the synchronous assembly; the distance between the preset position and the initial position is less than the length of the dust removal box in the cloth advancing direction, thereby realizing the continuous conveying of the cloth in the detection system, and realizing the overall dust removal and inspection of the cloth, improving the cloth detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a perspective view of a cloth detection device based on visual detection.

[0027] Figure 2 is a perspective view of a support, a synchronous moving mechanism, a clutch mechanism and a dust removal mechanism in a cloth detection device based on visual detection of the application;

[0028] Figure 3 is a perspective view of a support, a dust removal box, a detection box, a synchronous assembly, a first driving structure and a reset guide structure in a cloth detection device based on visual detection of the application;

[0029] Figure 4 is a perspective view of a dust removal box, a detection box, a synchronous assembly and a first driving structure in a cloth detection device based on visual detection of the application;

[0030] Figure 5 is a perspective view of a dust removal box, a detection box, a connecting rod, a connecting block, a mounting plate, a first guide rod and a connecting plate in a cloth detection device based on visual detection of the application;

[0031] Figure 6 is a perspective view of a connecting block, a first guide rod, a first spring and a limiting ring in a cloth detection device based on visual detection of the application;

[0032] Figure 7 is a perspective view of a support, a dust removal box, a detection box, a synchronous moving mechanism and a dust removal mechanism in a cloth detection device based on visual detection of the application;

[0033] Figure 8 is a perspective view of a cross beam and a clutch structure in a cloth detection device based on visual detection of the application;

[0034] Figure 9 is an exploded view of a vertical plate, a V-shaped plate and a first transmission rod in a cloth detection device based on visual detection of the application;

[0035] Figure 10 is a perspective view of a vertical plate, a V-shaped plate, a first transmission rod and a second driving structure in a cloth detection device based on visual detection of the application;

[0036] Figure 11 is a perspective view of a dust removal box, a connecting plate, a dust removal assembly and a linkage driving assembly in a cloth detection device based on visual detection of the application;

[0037] Figure 12 is a perspective view of a dust removal rod, a third driving rod, a second spring and a wave-shaped driving plate in a cloth detection device based on visual detection of the application.

[0038] The figure marks are: 1, support; 2, dust removal box; 3, detection box; 4, synchronous moving mechanism; 41, synchronous assembly; 411, connecting rod; 412, connecting block; 42, first driving structure; 421, mounting plate; 422, annular driving belt; 423, clamping block; 4231, V-shaped opening; 43, reset guide structure; 431, first guide rod; 432, connecting plate; 4321, second guide rod; 433, first spring; 434, limiting ring; 5, clutch mechanism; 51, cross beam; 52, clutch structure; 521, vertical plate; 5211, first bar-shaped groove; 522, V-shaped plate; 5221, second bar-shaped groove; 523, first transmission rod; 524, second driving structure; 5241, third guide rod; 5242, second transmission rod; 5243, linear driver; 6, dust removal mechanism; 61, dust removal assembly; 611, dust removal rod; 612, third driving rod; 613, second spring; 62, linkage driving assembly; 621, wave-shaped driving plate. DETAILED DESCRIPTION

[0039] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0040] Reference Figures 1 to 12 As shown in the figure: a cloth detection device based on visual detection, comprising two mutually parallel supports 1, two upper and lower arranged dust removal boxes 2 and two upper and lower arranged detection boxes 3, and the dust removal boxes 2 and the detection boxes 3 are arranged between the two supports 1, the inner top of the upper detection box 3 is provided with a light source, the inner bottom of the lower detection box 3 is provided with a photosensitive sensor, further comprising a synchronous moving mechanism 4, a clutch mechanism 5 and a dust removal mechanism 6; the synchronous moving mechanism 4 comprises a synchronous assembly 41 and a first driving structure 42, the synchronous assembly 41 comprises a horizontally arranged connecting rod 411 and connecting blocks 412 arranged at both ends of the connecting rod 411, the two ends of the connecting block 412 are connected with the dust removal box 2 and the detection box 3 respectively, and the first driving structure 42 is used to drive the connecting rod 411 to move at a constant speed in the same direction along the cloth conveying direction; the clutch mechanism 5 is used to simultaneously drive the two upper and lower arranged dust removal boxes 2 and the two upper and lower arranged detection boxes 3 to move in opposite directions in the vertical direction; the dust removal mechanism 6 is arranged in the dust removal box 2, and the dust removal mechanism 6 is used to clean the cloth.

[0041] In the cloth production line, the cloth detection device based on visual detection is initially in the initial position, and the two dust removal boxes 2 and the two detection boxes 3 are in a state of mutual separation, the first driving structure 42 is separated from the connecting rod 411, and the cloth is continuously and uniformly conveyed. When the detection starts, the clutch mechanism 5 controls the two dust removal boxes 2 and the two detection boxes 3 arranged in upper and lower positions to move in opposite directions in the vertical direction, and the opposite movement covers part of the cloth to form a closed detection space. At the same time, the first driving structure 42 is connected with the connecting rod 411, and the first driving structure 42 drives the connecting rod 411 to move at a constant speed in the same direction along the cloth conveying direction, and the connecting rod 411 drives the two dust removal boxes 2 and the two detection boxes 3 to move synchronously with the cloth through the connecting blocks 412 at both ends, so that the relative sliding of the dust removal boxes 2, the detection boxes 3 and the cloth is avoided. In the moving process, the dust removal mechanism 6 in the dust removal box 2 starts to work to clean the dust, impurities and the like on the surface of the cloth, so as to provide a clean cloth surface for subsequent detection. The light source at the top of the detection box 3 located at the upper side continuously irradiates on the cloth. If the cloth is locally broken, the light will pass through the cloth and be received by the photosensitive sensor at the bottom of the detection box 3 located at the lower side. If the surface of the cloth is complete, the photosensitive sensor will not receive the light signal, so as to realize the detection of the damage of the cloth. When the dust removal boxes 2 and the detection boxes 3 move to the preset position, the clutch mechanism 5 acts again to drive the two dust removal boxes 2 and the two detection boxes 3 to separate from each other, and at the same time, the first driving structure 42 is separated from the connecting rod 411. The dust removal boxes 2 and the detection boxes 3 are reset to the initial position. After the dust removal boxes 2 and the detection boxes 3 are reset, the clutch mechanism 5 controls the two dust removal boxes 2 and the two detection boxes 3 to abut against each other again. At this time, the cloth range covered by the two detection boxes 3 is the cloth range covered by the two dust removal boxes 2 in the previous detection process. The above detection process is repeated to realize the continuous detection of the cloth. The synchronous movement mechanism 4 is used to realize the synchronous movement of the dust removal boxes 2, the detection boxes 3 and the cloth, so as to avoid the deformation of the cloth due to the relative sliding of the dust removal boxes 2, the detection boxes 3 and the cloth. The distance between the preset position and the initial position is less than the length of the dust removal box 2 in the forward direction of the cloth, so that the continuous conveying of the cloth in the detection system can be realized, and the dust removal and inspection of the cloth can be realized, and the cloth detection efficiency is improved.

[0042] Referring to Figure 3 and Figure 4 , the first driving structure 42 comprises a mounting plate 421 and an annular driving belt 422. The two ends of the mounting plate 421 are connected with the two supports 1 respectively. The annular driving belt 422 is installed on the mounting plate 421, and at least two clamping blocks 423 are arranged at equal intervals on the annular driving belt 422. V-shaped openings 4231 are formed in the clamping blocks 423 and are connected with the connecting rod 411.

[0043] When the cloth detection device is in the initial state, the mounting plate 421 is fixed at both ends on the two supports 1, ensuring that the height of the annular driving belt 422 and the clamping block 423 thereon is fixed, at this time, one clamping block 423 on the annular driving belt 422 is just below the connecting rod 411, the V-shaped opening 4231 on the clamping block 423 is waiting to be connected with the connecting rod 411, and the cloth is continuously conveyed on the production line, when the clutch mechanism 5 drives the two dust removal boxes 2 and the two detection boxes 3 to move close to each other, the cloth is partially covered, at the same time, the connecting rod 411 moves downward in the vertical direction and is clamped into the V-shaped opening 4231 of the clamping block 423 below it, then the annular driving belt 422 starts to operate and drives the clamping block 423 to move along the direction of cloth conveying, the clamping block 423 moves the connecting rod 411, the dust removal box 2 and the detection box 3 connected with the connecting rod 411 through the cooperation of the V-shaped opening 4231 and the connecting rod 411, and the dust removal box 2 and the detection box 3 move synchronously with the cloth to ensure that there is no relative sliding between the dust removal box 2, the detection box 3 and the cloth during the detection process, when the dust removal box 2 and the detection box 3 move to the preset position to complete the detection of the cloth, the clutch mechanism 5 is actuated again to drive the two dust removal boxes 2 and the two detection boxes 3 to move away from each other, in this process, the connecting rod 411 is separated from the clamping block 423, and the dust removal box 2 and the detection box 3 quickly return to the initial position, at this time, the annular driving belt 422 continues to operate, so that the other clamping block 423 moves to the position directly below the connecting rod 411, then the clutch mechanism 5 drives the dust removal box 2 and the detection box 3 to move close again, the connecting rod 411 is connected with the clamping block 423 below it again, and the clamping block 423 continues to drive the connecting rod 411 and the dust removal box 2 and the detection box 3 to move, so as to realize the continuous driving of the dust removal box 2 and the detection box 3, and ensure that the cloth detection work is carried out continuously.

[0044] Referring to Figure 3 and Figure 5 As shown: the synchronous moving mechanism 4 further comprises a reset guide structure 43, the reset guide structure 43 comprises two first guide rods 431 and two connecting plates 432; the two first guide rods 431 are arranged along the conveying direction of the cloth, and the two connecting blocks 412 are respectively connected with the two first guide rods 431 in a sliding manner; the two ends of the connecting plate 432 are respectively connected with the end portions of the two first guide rods 431, and the second guide rod 4321 connected with the mounting plate 421 in a sliding manner is arranged on the connecting plate 432.

[0045] When the clamping block 423 drives the connecting rod 411 to move, the connecting rod 411 drives the two connecting blocks 412 connected thereto to move, so that the two connecting blocks 412 slide along the two first guide rods 431 respectively, the movement of the connecting blocks 412 is limited in the direction of the cloth conveying direction, so as to avoid deviation, when the dust removal box 2 and the detection box 3 move to the preset position, the first guide rod 431 and the connecting plate 432 are driven by the clutch mechanism 5 to move away from the cloth, at this time, the second guide rod 4321 slides relative to the mounting plate 421, the second guide rod 4321 limits the movement direction of the first guide rod 431 and the connecting plate 432, the connecting rod 411 is separated from the clamping block 423, and the connecting block 412 reversely slides along the first guide rod 431 to reset, in this process, the connecting block 412, the connecting rod 411, the dust removal box 2 and the detection box 3 can be ensured to return to the initial position accurately, and the next docking with the clamping block 423 is waited, so as to ensure the accuracy of the docking between the first driving structure 42 and the synchronous assembly 41.

[0046] Referring to Figure 3 and Figure 6 As shown in the drawings: the two ends of the first guide rod 431 are respectively provided with a first spring 433 and a limiting ring 434; the two ends of the first spring 433 are respectively abutted against the connecting plate 432 and the connecting block 412, and the first spring 433 is used for pushing the connecting block 412 to reset along the first guide rod 431; the limiting ring 434 is fixedly installed on the first guide rod 431, and the limiting ring 434 is used for limiting the movement range of the connecting block 412 on the first guide rod 431.

[0047] When the cloth detection device is in the initial state, the two ends of the first spring 433 are respectively abutted against the connecting plate 432 and the connecting block 412, and under the action of the elastic force of the first spring 433, the connecting block 412 and the limiting ring 434 are kept in the abutted state, at this time, the cloth is continuously conveyed, the annular driving belt 422 is static, and the clamping block 423 has not been docked with the connecting rod 411, when the clutch mechanism 5 is actuated to drive the dust removal box 2 and the detection box 3 to approach, the connecting rod 411 is clamped into the V-shaped opening 4231 of the clamping block 423, the annular driving belt 422 is started to drive the clamping block 423 to move, the clamping block 423 pulls the connecting block 412 through the connecting rod 411, so that the connecting block 412 slides along the first guide rod 431 against the elastic force of the first spring 433, in this process, the first spring 433 is gradually compressed and stores elastic potential energy, when the dust removal box 2 and the detection box 3 move to the preset position, the clutch mechanism 5 drives them to move away from each other, the connecting rod 411 is separated from the clamping block 423, at this time, the two compressed first springs 433 release the stored elastic potential energy at the same time, push the connecting block 412 to reversely slide along the first guide rod 431 to reset, when the connecting block 412 contacts with the limiting ring 434, the movement of the connecting block 412 is stopped by the limiting ring 434 and returns to the initial position, so as to prepare for the next detection cycle, so that the dust removal box 2, the detection box 3 and the synchronous assembly 41 are quickly reset.

[0048] Referring to Figure 2 and Figure 7 As shown in the figure: the synchronous moving mechanism 4 has two, two synchronous moving mechanisms 4 are respectively arranged on the upper and lower sides of the cloth, the synchronous moving mechanism 4 above the cloth is connected with the dust removal box 2 and the detection box 3 on the upper side, and the synchronous moving mechanism 4 below the cloth is connected with the dust removal box 2 and the detection box 3 on the lower side; the length of the dust removal box 2 and the detection box 3 in the forward direction of the cloth is the same.

[0049] If only one synchronous moving mechanism 4 is arranged and connected with the dust removal box 2 and the detection box 3 above, when driving the components above to move, due to the lack of direct driving of the components below, the dust removal box 2 and the detection box 3 below are only passively moved by mechanical connection, it is difficult to ensure complete consistency with the movement of the components above, and the movement of the components on the upper and lower sides may be out of sync, speed difference or position deviation, etc., which may affect the accuracy and stability of dust removal and detection, therefore two synchronous moving mechanisms 4 are arranged, since the structure and working mode of the two synchronous moving mechanisms 4 are consistent, in the running process, the dust removal box 2 on the upper side and the dust removal box 2 on the lower side will be subjected to the same force in size and direction, ensuring that they move synchronously, and by the same token, the detection box 3 on the upper side and the detection box 3 on the lower side also keep synchronous under the same force, when moving to the preset position to complete the detection, the clutch mechanism 5 drives the dust removal box 2 and the detection box 3 to move away from each other, the first spring 433 of the two synchronous moving mechanisms 4 releases the elastic potential energy, driving each component to reset, waiting for the next detection cycle, so as to ensure that the dust removal box 2 and the detection box 3 on the upper and lower sides of the cloth are subjected to consistent force during movement, realizing synchronous movement.

[0050] Referring to Figure 2 and Figure 8 As shown in the figure: the clutch mechanism 5 has two, two clutch mechanisms 5 are respectively arranged on the two sides of the cloth conveying direction, the clutch mechanism 5 includes a cross beam 51 and two clutch structures 52; the two ends of the cross beam 51 are respectively connected with the two supports 1; the two clutch structures 52 are respectively arranged at the two ends of the cross beam 51, and the two clutch structures 52 are respectively connected with the connecting plates 432 in the two synchronous moving mechanisms 4.

[0051] The two clutch mechanisms 5 are connected with the two ends of the connecting plate 432, so that the two ends of the connecting plate 432 can keep synchronous movement, and the two clutch structures 52 in the clutch mechanism 5 are respectively connected with the two connecting plates 432, so that the two connecting plates 432 can keep synchronous movement, therefore when the clutch mechanism 5 drives the connecting rod 411 to separate from the clamping block 423, the two first guide rods 431 can keep translation under the driving of the two connecting plates 432, so that the guide direction of the first guide rod 431 always keeps parallel with the conveying direction of the cloth, thereby realizing that the distance between the dust removal box 2 and the detection box 3 connected with the first guide rod 431 and the cloth always keeps consistent.

[0052] Referring to Figure 8 and Figure 9 As shown in the figure, the clutch structure 52 comprises a vertical plate 521, a V-shaped plate 522 and two first transmission rods 523; the vertical plate 521 is provided with a vertical first slot 5211 at both ends; the V-shaped plate 522 is provided with a second slot 5221 at both ends; the two first transmission rods 523 are connected with the two reset guide structures 43 respectively, and the first transmission rod 523 is in sliding connection with the first slot 5211 and the second slot 5221.

[0053] If the position of the V-shaped plate 522 is fixed, the first transmission rod 523 is limited at the intersection of the first slot 5211 and the second slot 5221, thereby fixing the position of the connecting plate 432; when the V-shaped plate 522 starts to move, the overlapping part of the second slot 5221 on the V-shaped plate 522 and the first slot 5211 on the vertical plate 521 changes; since the first transmission rod 523 is in sliding connection with the first slot 5211 and the second slot 5221 simultaneously, the change of the overlapping part causes the position of the first transmission rod 523 in the first slot 5211 and the second slot 5221 to change synchronously, and the two first transmission rods 523 drive the connecting plates 432 of the reset guide structures 43 connected therewith to move respectively, thereby realizing the synchronous movement of the two connecting plates 432 on the upper and lower sides of the cloth.

[0054] Referring to Figure 8 and Figure 10 As shown in the figure, the clutch structure 52 further comprises a second driving structure 524, the second driving structure 524 is connected with the middle part of the V-shaped plate 522, and the second driving structure 524 is used to drive the V-shaped plate 522 to move along the cross beam 51.

[0055] Specifically, the second driving structure 524 comprises a third guide rod 5241, a second transmission rod 5242 and a linear driver 5243; the third guide rod 5241 is arranged along the length direction of the cross beam 51, the second transmission rod 5242 is in sliding connection with the third guide rod 5241, and the second transmission rod 5242 is connected with the V-shaped plate 522, and the linear driver 5243 is used to drive the second transmission rod 5242 to move along the third guide rod 5241.

[0056] When the linear driver 5243 pushes the second transmission rod 5242 to slide along the third guide rod 5241, since the second transmission rod 5242 is connected with the V-shaped plate 522, the sliding of the second transmission rod 5242 drives the V-shaped plate 522 to move along the cross beam 51, and as the V-shaped plate 522 moves, the overlapping part of the second slot 5221 and the first slot 5211 of the vertical plate 521 changes, so that the position of the first transmission rod 523 in the two slots changes synchronously, and when the linear driver 5243 reversely drives the second transmission rod 5242, the second transmission rod 5242 reversely slides along the third guide rod 5241, thereby reversely moving the V-shaped plate 522, and based on the change of the overlapping part of the first slot 5211 and the second slot 5221, the first transmission rod 523 reversely drives the connecting plate 432 to move, and through the combination of the linear driver 5243, the second transmission rod 5242 and the third guide rod 5241, the moving distance and speed of the V-shaped plate 522 can be accurately controlled, so that the position change of the first transmission rod 523 is more accurate, and the accuracy of the synchronous movement of the connecting plates 432 on the upper and lower sides of the cloth is further improved.

[0057] Referring to Figure 7 , Figure 11 and Figure 12 , it is shown that the dust removal mechanism 6 comprises a plurality of dust removal assemblies 61 and a linkage driving assembly 62; the plurality of dust removal assemblies 61 are arranged at equal intervals in the dust removal box 2; the linkage driving assembly 62 is fixedly arranged below the dust removal box 2, and is used to drive the dust removal assembly 61 to clean the cloth during movement.

[0058] Specifically, the dust removal assembly 61 comprises a dust removal rod 611, two third driving rods 612 and two second springs 613, the dust removal rod 611 is horizontally arranged, the two third driving rods 612 are respectively arranged at two ends of the dust removal rod 611, and the third driving rod 612 penetrates through the dust removal box 2 and is in sliding connection with the dust removal box 2, the two second springs 613 are respectively sleeved on the two third driving rods 612, and the two ends of the second spring 613 respectively abut against the outer wall of the dust removal box 2 and the end of the third driving rod 612, the linkage driving assembly 62 comprises two wave-shaped driving plates 621, the two wave-shaped driving plates 621 are horizontally arranged, and the wave-shaped driving plate 621 is arranged along the conveying direction of the cloth, and one end of the third driving rod 612 abuts against the wave-shaped driving plate 621.

[0059] When the clutch mechanism 5 is started, the dust removal box 2 is driven to move synchronously with the cloth, and a plurality of dust removal assemblies 61 in the dust removal box 2 move synchronously. During the movement, the two third driving rods 612 of the dust removal assembly 61 move along the surface of the wave-shaped driving plate 621. When the third driving rod 612 moves to the wave peak position of the wave-shaped driving plate 621, the wave-shaped driving plate 621 generates an upward thrust on the third driving rod 612, prompting the third driving rod 612 to move along the axis direction thereof towards the cloth. At this time, the dust removal rod 611 connected with the third driving rod 612 also moves close to the cloth and collides with the cloth, and the surface of the cloth is cleaned by being hit. At the same time, the second spring 613 sleeved on the third driving rod 612 is compressed to store elastic potential energy. When the third driving rod 612 starts to move towards the wave trough of the wave-shaped driving plate 621, the second spring 613 loses the upward thrust of the wave-shaped driving plate 621 and releases the elastic potential energy to generate a downward thrust to push the third driving rod 612 away from the cloth. Under the action of the second spring 613, the third driving rod 612 always maintains the abutting state with the wave-shaped driving plate 621. With the continuous movement of the dust removal box 2, the contact position of the third driving rod 612 with the wave-shaped driving plate 621 changes continuously, so that the dust removal rod 611 intermittently collides with and separates from the cloth, thereby realizing the intermittent hitting and cleaning of the cloth surface by the dust removal rod 611.

[0060] A detection method of a cloth detection device based on visual detection, applied to a cloth detection device based on visual detection, comprising the following steps:

[0061] S1. At the initial position at the start of detection, the two dust removal boxes 2 and the two detection boxes 3 are in a state of mutual separation, and the first driving structure 42 is in a separated state with the connecting rod 411;

[0062] S2. When starting detection, the clutch mechanism 5 controls the two dust removal boxes 2 and the two detection boxes 3 to move towards each other, covering part of the cloth. At the same time, the first driving structure 42 is connected with the connecting rod 411, and the first driving structure 42 drives the connecting rod 411 to move along the conveying direction of the cloth, so that the connecting rod 411 drives the two dust removal boxes 2 and the two detection boxes 3 to move synchronously with the cloth, preventing the relative sliding of the dust removal box 2, the detection box 3 and the cloth;

[0063] S3. The dust removal mechanism 6 cleans the cloth during the movement of the dust removal box 2;

[0064] S4. After the dust removal box 2 and the detection box 3 move to the preset position, the clutch mechanism 5 drives the two dust removal boxes 2 and the two detection boxes 3 to separate from each other, and the first driving structure 42 is separated from the connecting rod 411, and the dust removal box 2 and the detection box 3 are reset. The distance between the preset position and the initial position is less than the length of the dust removal box 2 in the forward direction of the cloth;

[0065] S5, after the dust removal box 2 and the detection box 3 are reset, the clutch mechanism 5 controls the two dust removal boxes 2 and the two detection boxes 3 to abut against each other again, at this time, the cloth range covered by the two detection boxes 3 is the cloth range covered by the two dust removal boxes 2 in the previous detection process;

[0066] S6, repeat the above process to realize continuous detection of the cloth.

[0067] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fabric inspection device based on vision inspection, comprising two parallel supports, two vertically arranged dust collection boxes, and two vertically arranged inspection boxes, wherein the dust collection boxes and inspection boxes are disposed between the two supports, a light source is disposed at the top inner interior of the upper inspection box, and a photosensitive sensor is disposed at the bottom inner interior of the lower inspection box, characterized in that, It also includes a synchronous movement mechanism, a clutch mechanism, and a dust removal mechanism; the synchronous movement mechanism includes a synchronous component and a first drive structure, the synchronous component includes a horizontally arranged connecting rod and connecting blocks at both ends of the connecting rod, the two ends of the connecting blocks are respectively connected to the dust removal box and the detection box, the first drive structure is used to drive the connecting rod to move at the same speed and in the same direction along the fabric conveying direction; the clutch mechanism is used to simultaneously drive two vertically arranged dust removal boxes and two vertically arranged detection boxes to move in opposite directions in the vertical direction; the dust removal mechanism is set in the dust removal box and is used to clean the fabric; The first drive structure includes a mounting plate and an annular drive belt; the two ends of the mounting plate are respectively connected to two brackets; the annular drive belt is mounted on the mounting plate, and at least two locking blocks are equally spaced on the annular drive belt, with V-shaped openings on the locking blocks that mate with the connecting rods; There are two clutch mechanisms, which are respectively located on both sides of the fabric conveying direction. Each clutch mechanism includes a crossbeam and two clutch structures. The two ends of the crossbeam are connected to two supports respectively; two clutch structures are respectively set at the two ends of the crossbeam, and the two clutch structures are respectively connected to the connecting plates in the two synchronous moving mechanisms. The clutch structure includes a vertical plate, a V-shaped plate, and two first transmission rods; both ends of the vertical plate are provided with vertical first slots; both ends of the V-shaped plate are provided with second slots; the two first transmission rods are respectively connected to two reset guide structures, and the first transmission rods are slidably connected to the first slots and the second slots. The clutch mechanism also includes a second drive structure, which is connected to the middle of the V-shaped plate and is used to drive the V-shaped plate to move along the crossbeam.

2. The fabric inspection device based on vision inspection according to claim 1, characterized in that, The synchronous movement mechanism also includes a reset guide structure, which includes two first guide rods and two connecting plates. The two first guide rods are arranged along the conveying direction of the fabric, and the two connecting plates are slidably connected to the two first guide rods respectively. The two ends of the connecting plates are respectively connected to the ends of the two first guide rods.

3. The fabric inspection device based on vision inspection according to claim 2, characterized in that, The first guide rod has a first spring and a limiting ring at each end; the two ends of the first spring abut against the connecting plate and the connecting block respectively, and the first spring is used to push the connecting block to reset along the first guide rod; the limiting ring is fixedly installed on the first guide rod and is used to limit the movement range of the connecting block on the first guide rod.

4. The fabric inspection device based on vision inspection according to claim 1, characterized in that, There are two synchronous moving mechanisms, which are respectively set on the upper and lower sides of the fabric. The synchronous moving mechanism located above the fabric is connected to the dust collection box and the detection box located on the upper side, and the synchronous moving mechanism located below the fabric is connected to the dust collection box and the detection box located on the lower side. The dust collection box and the detection box have the same length in the direction of fabric movement.

5. The fabric inspection device based on vision inspection according to claim 1, characterized in that, The dust removal mechanism includes multiple dust removal components and a linkage drive component; the multiple dust removal components are arranged at equal intervals inside the dust removal box; the linkage drive component is fixedly installed at the bottom of the dust removal box and is used to drive the dust removal components to clean the fabric during movement.

6. A detection method for a vision-based fabric detection device, applied to a vision-based fabric detection device as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. At the initial position of the detection, both dust collection boxes and both detection boxes are in a state of separation from each other, and the first drive structure is separated from the connecting rod. S2. When the detection begins, the clutch mechanism controls the two dust collection boxes and the two detection boxes to move towards each other, covering part of the fabric. At the same time, the first drive structure is connected to the connecting rod. The first drive structure drives the connecting rod to move along the conveying direction of the fabric. The connecting rod drives the two dust collection boxes and the two detection boxes to move synchronously with the fabric, preventing the dust collection boxes, detection boxes and fabric from sliding relative to each other. S3. The dust removal mechanism cleans the fabric during the movement of the dust removal box; S4. After the dust collection box and the detection box move to the preset position, the clutch mechanism drives the two dust collection boxes and the two detection boxes to separate from each other, and the first drive structure separates from the connecting rod, and the dust collection box and the detection box are reset; the distance between the preset position and the initial position is less than the length of the dust collection box in the fabric forward direction; S5. After the dust collection box and the detection box are reset, the clutch mechanism controls the two dust collection boxes and the two detection boxes to abut against each other again. At this time, the area of ​​the cloth covered by the two detection boxes is the same as the area of ​​the cloth covered by the two dust collection boxes in the previous detection process. S6. Repeat the above process to continuously inspect the fabric.

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