Printing and dyeing product detection device based on visual detection and detection method thereof

Abstract

The invention relates to the technical field of visual detection, in particular to a printing and dyeing product detection device based on visual detection and a detection method thereof. The device is arranged between a cloth unwinding mechanism and a cloth winding mechanism and comprises a base station, a detection box, a camera, a display screen and a tensioning mechanism. The detection box is fixed on the top of the base, and two sides of the detection box are provided with feeding holes for cloth to pass through. And the camera is arranged in the detection box for detection. The tensioning mechanism comprises a fixing frame and a plurality of first supporting rods arranged in an inclined mode and is fixed in the detection box. Cloth passes through the first supporting rod to form a wave-shaped path, and the cameras with the corresponding number image the cloth from different angles. The tensioning mechanism further comprises a first connecting frame, a second connecting frame and a driving assembly, the second connecting frame is fixed to the base table, pressing plates are arranged on the opposite sides of the two connecting frames in a sliding mode, the driving assembly drives the upper pressing plate to move downwards to be matched with the lower pressing plate to clamp cloth, and the cameras are arranged on the two sides respectively. The device can improve the accuracy and comprehensiveness of identifying defects such as printing and dyeing product flaws and chromatic aberration.

Description

Technical Field

[0001] The present invention belongs to the technical field of visual detection, and relates to a detection device and a detection method for printed and dyed products based on visual detection. Background Art

[0002] In the printing and dyeing industry, quality inspection of printed and dyed products is a crucial link, which is directly related to the final quality and market competitiveness of the products. With the continuous development of printing and dyeing technology and the increasing market requirements for the quality of printed and dyed products, traditional manual inspection methods have been unable to meet the needs of large-scale, high-efficiency and high-precision production. Therefore, printing and dyeing product inspection devices based on visual inspection have emerged and gradually become the mainstream means of quality inspection in the printing and dyeing industry.

[0003] Currently, the existing visual inspection-based printing and dyeing product inspection devices on the market have improved inspection efficiency and accuracy to a certain extent, but they still have the following disadvantages:

[0004] 1. It is difficult to ensure that the fabric always maintains a stable and appropriate tension during the inspection process. The fabric is prone to wrinkles and looseness during the transmission process. This will not only affect the shooting effect of the inspection camera, resulting in blurred and unclear inspection images, but also cause large errors in the inspection results. It is impossible to accurately identify defects such as flaws and color differences on the fabric, which in turn affects the overall quality assessment of printed and dyed products.

[0005] 2. The existing detection devices have a relatively single detection angle and can usually only detect fabrics from a fixed angle. However, defects on printed and dyed products may have different forms and characteristics. It is difficult to detect all problems comprehensively and accurately from a single angle. This may cause some minor defects to be missed, reducing the comprehensiveness and reliability of the detection and failing to meet the printing and dyeing industry's demand for high-quality detection.

[0006] Therefore, we propose a detection device and a detection method for printed and dyed products based on visual inspection to solve the above-mentioned problems. Summary of the Invention

[0007] In view of this, the present invention provides a detection device and a detection method for printed and dyed products based on visual inspection in order to solve the problem that it is difficult to ensure that the fabric always maintains a stable and appropriate tension during the inspection process and the fabric can only be inspected from a fixed angle.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a detection device for printed and dyed products based on visual inspection, which is arranged between a fabric unwinding mechanism and a fabric rewinding mechanism, comprising:

[0009] A base is provided between the unwinding mechanism and the rewinding mechanism;

[0010] The detection box is fixedly mounted on the top of the base, and has feeding holes on both sides for the cloth to pass through;

[0011] a camera, disposed in the detection box, for detecting the fabric;

[0012] A display screen is provided on one side of the detection box and is connected to the camera;

[0013] The tensioning mechanism is used for the fabric to be squeezed and deformed when passing through the tensioning mechanism, and the camera detects the fabric from different angles.

[0014] As a further improvement of the above technical solution:

[0015] The tensioning mechanism includes a fixing frame and a plurality of first support rods, the fixing frame is fixed in the detection box, the plurality of first support rods are arranged in an inclined manner on the top of the fixing frame, the number of the cameras corresponds to the first support rod, a first guide rod corresponding to the first support rod is provided in the fixing frame, a moving block is slidably sleeved on the first guide rod, a threaded hole is provided on the top of the moving block, a stud is threadedly connected to the threaded hole, the first support rod is fixedly connected to the stud, a flat portion is provided on the top of the first guide rod, and the bottom end of the stud is in conflict with the flat portion.

[0016] A mushroom head is provided on the top of the first support rod, a first fixing rod is fixedly provided in the detection box, and the plurality of cameras are fixedly mounted on the first fixing rod.

[0017] The tensioning mechanism includes a first connecting frame, a second connecting frame and a driving assembly. The second connecting frame is fixed to the top of the base. Two pressure plates are slidingly provided on opposite sides of the first connecting frame and the second connecting frame. The driving assembly drives the upper pressure plate to move downward to cooperate with the lower pressure plate to clamp the fabric.

[0018] Two second electric push rods are provided on the top of the second connecting frame, and the output ends of the second electric push rods are connected to the pressure plates to drive the two groups of pressure plates away from each other to tighten the fabric. Two second support rods are also provided at the output ends of the second electric push rods, and the two cameras are respectively located on both sides of the second support rods.

[0019] The driving assembly includes a first electric push rod, which is fixed to the top of the detection box. Its output end extends into the detection box and is connected to a second fixed rod. The bottom end of the second fixed rod is connected to the first connecting frame through two third fixing seats.

[0020] Two second guide rods are provided through the top of the detection box and the second fixed rod, the bottom end of the second guide rod is connected to the first fixed seat, the second fixed rod is fixedly provided at the bottom of the first fixed seat, a third guide rod is provided between the two second fixed seats, the mounting seat is slidably sleeved on the third guide rod, and the camera is fixed on one side of the mounting seat.

[0021] A first rotating seat is provided on each side opposite to the mounting seat and the second fixed rod, a first connecting rod is rotatably connected between the two first rotating seats, a first spring is sleeved on the outer wall of the first rotating seat, and two ends of the first spring respectively contact the second fixed rod and the first fixed seat.

[0022] A second rotating seat is provided at the output end of the second electric push rod, and a third rotating seat is provided on the inner side of the lower pressure plate. A second connecting rod is rotatably connected between the second rotating seat and the third rotating seat. The second support rod is L-shaped and the bottom end is fixed to the second rotating seat.

[0023] A method for detecting printed and dyed products based on visual inspection, using the above-mentioned detection device, comprises the following steps:

[0024] S1, pass the cloth through the feeding hole and fix it on the winding mechanism;

[0025] S2, start the winding mechanism to tighten the fabric, and start the camera for detection;

[0026] S3, driving the pressing plate to clamp the fabric via the first electric push rod;

[0027] S4, driving the pressing plates away from each other by the second electric push rod to tighten the fabric;

[0028] S5. The camera is driven to move horizontally by extending and retracting the first electric push rod to inspect the fabric from different angles.

[0029] S6. Display the test results on the display screen.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention discloses a visual inspection device for printed and dyed products. This device employs a tensioning mechanism within an inspection chamber, including a fixed frame, first support rods, and other components, to tension the fabric. Multiple first support rods are arranged in a slanted pattern, with the number of cameras corresponding to the number of first support rods. This ensures that the fabric remains relatively smooth during inspection, reducing inspection errors caused by factors such as wrinkles and looseness. This significantly improves the accuracy of printed and dyed product inspection and ensures accurate identification of fabric defects, color differences, and other issues.

[0032] 2. The present invention discloses a detection device for printed and dyed products based on visual inspection. In the tensioning mechanism, the first support rod and the stud are integrally formed, and the stud is connected to the movable block through a threaded hole. The movable block can slide on the first guide rod, and the bottom end of the stud contacts the flat portion, so that the position of the first support rod can be flexibly adjusted according to actual needs. The operator can complete the adjustment without complicated tools or operating procedures, which greatly improves the operational convenience and flexibility of the device.

[0033] 3. The present invention discloses a detection device for printed and dyed products based on visual inspection. The tensioning mechanism includes a first connecting frame, a second connecting frame and a driving assembly. The driving assembly drives the two upper pressure plates to move downward to cooperate with the two lower pressure plates to clamp the fabric. The second electric push rod is then used to drive the two sets of pressure plates away from each other to achieve the tightening of the fabric. This can enable the fabric to maintain a stable tension during the inspection process, avoid the problem of uneven fabric tension affecting the inspection results, further optimize the fabric tensioning effect, and provide a guarantee for high-precision inspection.

[0034] 4. The present invention discloses a detection device for printed and dyed products based on visual inspection, which utilizes a first electric push rod to drive the second fixed rod to move downward, and drives the first fixed seat to move downward through the first spring, so that the upper and lower sets of pressure plates clamp the fabric. At the same time, the second electric push rod extends to drive the two lower pressure plates away from each other, driving the upper pressure plate to move to tighten the fabric, so that the fabric forms an inverted V shape, and the camera is located on both sides of the second support rod. During the inspection process, the camera can be driven to move horizontally through the extension and retraction of the first electric push rod to realize inspection of the fabric at different angles, and can more comprehensively discover various defects on the fabric, thereby improving the comprehensiveness and reliability of the inspection.

[0035] 5. The present invention discloses a detection device for printed and dyed products based on visual inspection, wherein a second guide rod is slidably provided through the top of the detection box and the second fixed rod, providing a stable guide for the movement of the second fixed rod, avoiding shaking or offset during movement, ensuring the smooth movement of the camera, and thereby improving the accuracy of the detection result. At the same time, the pressing plate is slidably arranged in the first connecting frame and the second connecting frame through the fourth guide rod, and the outer wall of the fourth guide rod is provided with a second spring, which not only provides a guide for the movement of the pressing plate, but also enables the pressing plate to maintain a certain elasticity when clamping the cloth through the action of the second spring, avoiding damage to the cloth due to excessive clamping force, and enhancing the structural stability and reliability of the device.

[0036] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of a detection device for printed and dyed products based on visual inspection according to the first embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the camera installation structure of a printing and dyeing product inspection device based on visual inspection according to the first embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the installation structure of the support rod and the fixing frame of a printing and dyeing product inspection device based on visual inspection according to the first embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the installation structure of a moving block and a first guide rod of a printed and dyed product inspection device based on visual inspection according to a second embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the three-dimensional structure of a printed and dyed product inspection device based on visual inspection according to the second embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the camera installation structure of a visual inspection-based inspection device for printed and dyed products according to a second embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the connecting rod and mounting base structure of a printing and dyeing product inspection device based on visual inspection according to the second embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the connection frame and pressure plate structure of a printing and dyeing product detection device based on visual inspection according to the second embodiment of the present invention.

[0046] 1. The first guide rod; 2. The second guide rod; 3. The third guide rod; 4. The third fixing seat; 5. The first fixing seat; 6. The first fixing seat; 7. The first fixing seat; 8. The first fixing seat; 9. The first fixing seat; 10. The first fixing seat; 11. The first fixing seat; 12. The first fixing seat; 13. The first fixing seat; 14. The first fixing seat; 15. The first fixing seat; 16. The first fixing seat; 17. The second fixing seat; 18. The first fixing seat; 20. The first connecting frame; 21. The second connecting frame; 22. The second fixing rod; 23. The first spring; 24. The second fixing seat; 25. The third fixing seat; 26. The mounting seat; 27. The first rotating seat; 28. The third guide rod; 29. ​​The first connecting rod; 30. The pressure plate; 31. The fourth guide rod; 32. The second spring; 33. The second electric pushing rod; 34. The second rotating seat; 35. The second connecting rod; 36. The third rotating seat; 37. The second supporting rod; 38. The socket; 39. The plug rod. DETAILED DESCRIPTION

[0047] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0048] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0049] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0050] Example 1

[0051] like Figure 1-Figure 3 As shown, a visual inspection device for printed and dyed products includes a base 1, positioned between the unwinding and rewinding mechanisms for fabric, supporting the entire inspection device. An inspection box 2 is bolted to the top of the base 1. On either side of the inspection box 2 are feed holes 4 for fabric to pass through. Fabric enters the inspection box 2 through these feed holes for inspection. A controller 5, connected to the unwinding and rewinding mechanisms, is located on one side of the base 1 to control the unwinding and rewinding processes.

[0052] The inspection box 2 is equipped with a camera 7 (with autofocus function) for fabric inspection. The number of cameras 7 can be multiple, and the specific number can be determined according to actual inspection requirements. A display screen 3 connected to the camera 7 is provided on one side of the inspection box 2 for displaying the inspection image, allowing the operator to observe the inspection results in real time.

[0053] The tensioning mechanism is provided in the testing box 2 and is used to tension the fabric to ensure that the fabric remains flat during the testing process. The tensioning mechanism mainly includes a fixing frame 8, a first support rod 9, a first guide rod 10, a moving block 11, a stud 13 and other components.

[0054] The fixing frame 8 is arranged in the detection box 2, and a plurality of first support rods 9 are provided on the top of the fixing frame 8. The number of the first support rods 9 corresponds to the number of the cameras 7, and the plurality of first support rods 9 are arranged obliquely in sequence. The oblique arrangement helps to keep the fabric flat during the detection process and reduce wrinkles and deformation.

[0055] A first guide rod 10 corresponding to the first support rod 9 is bolted to the fixed frame 8. A movable block 11 is slidably sleeved on the outer wall of the first guide rod 10. A threaded hole 12 is provided at the top of the movable block 11, and a stud 13 is threadedly connected to the threaded hole 12. A flat portion 14 is provided at the top of the first guide rod 10, and the bottom end of the stud 13 contacts the flat portion 14. By rotating the stud 13, the movable block 11 can be fixed to the first guide rod 10, and the first support rod 9 can be fixed to the movable block 11. At the same time, the thread direction of the stud 13 is in the same direction as the movement direction of the cloth, preventing the stud 13 from rotating during the movement of the cloth. At the same time, the height of the first support rod 9 can be adjusted as needed.

[0056] The top of the first support rod 9 is provided with a mushroom head 15 (which can be made of a smooth metal material). The design of the mushroom head 15 helps reduce friction between the fabric and the first support rod 9, protecting the fabric from damage. A first fixing rod 6 is fixed within the inspection box 2. Multiple cameras 7 are bolted to the first fixing rod 6. The cameras 7 are positioned corresponding to the first support rod 9 to accurately inspect the fabric.

[0057] When in use, one end of the cloth is passed through the feed hole 4 and fixed on the winding mechanism on one side of the base 1, and then the winding mechanism is started to reel the cloth so that the cloth is tightened. During the tightening process, the cloth can be supported by multiple first support rods 9 to make it smooth, and the camera 7 is started for detection. The detection picture can be displayed on the display screen 3. Since the multiple first support rods 9 are arranged obliquely, the camera 7 can correspond to the first support rods 9;

[0058] At the same time, the unwinding mechanism is started to unwind, and the rewinding mechanism is started to rewind, and testing is performed while rewinding.

[0059] Example 2

[0060] Reference Figure 3-Figure 8 The present invention provides a new technical solution, a visual inspection-based inspection device for printed and dyed products. The tensioning mechanism further includes a first connecting frame 20, a second connecting frame 21, and a drive assembly. The second connecting frame 21 is bolted to the top of the base 1. Two pressing plates 30 are slidingly provided on the sides of the first and second connecting frames 20 and 21 that are close to each other. The drive assembly drives the two upper pressing plates 30 downward to cooperate with the two lower pressing plates 30 to clamp the fabric. Rubber pads are provided on the sides of the upper and lower sets of pressing plates 30 that are close to each other, which can be used to increase friction with the fabric.

[0061] Two second electric push rods 33 are bolted to the top of the second connecting frame 21. The output ends of the two second electric push rods 33 are connected to the two pressing plates 30. By controlling the extension and retraction of the second electric push rods 33, the two sets of pressing plates 30 can be driven closer or farther away from each other, thereby clamping and releasing the fabric.

[0062] Two second support rods 37 are also provided at the output end of the second electric push rod 33. The second support rods 37 can support the clamped fabric, so that the fabric forms an inverted V shape. There are two cameras 7, one on each side of the second support rods 37. This allows the cameras 7 to inspect the fabric from different angles, improving the accuracy and comprehensiveness of the inspection.

[0063] The drive assembly includes a first electric push rod 16 bolted to the top of the detection box 2. The output end of the first electric push rod 16 extends into the detection box 2 and is bolted to a connecting plate 40. The bottom end of the connecting plate 40 is connected to two third fixing blocks 25, and the first connecting frame 20 is bolted between the two third fixing blocks 25.

[0064] When the first electric push rod 16 extends, it can drive the connecting plate 40 to move downward, and then drive the first connecting frame 20 to move closer to the second connecting frame 21 through the third fixing seat 25, so that the upper and lower pressing plates 30 clamp the fabric.

[0065] Two second guide rods 17 slide through the top of the detection box 2 and the second fixed rod 22. The bottom of the second guide rod 17 is connected to the first fixed base 18. The second fixed rod 22 is fixed to the bottom of the first fixed base 18. The outer wall of the second fixed rod 22 is fixedly mounted with a second fixed base 24. A third guide rod 28 is fixed between the two second fixed bases 24. The outer wall of the third guide rod 28 slides with a mounting base 26. The camera 7 is connected to one side of the mounting base 26 via bolts.

[0066] A first rotating base 27 is fixed to the adjacent sides of the mounting base 26 and the connecting plate 40. A first connecting rod 29 pivots between the two first rotating bases 27. A first spring 23 is sheathed around the outer wall of each first rotating base 27. The ends of the first spring 23 contact the adjacent sides of the second fixed rod 22 and the first fixed base 18, respectively, through the connecting base. When the first electric push rod 16 continues to extend, the first connecting rod 29 drives the mounting base 26 to move on the third guide rod 28, thereby driving the camera 7 to move horizontally, achieving comprehensive inspection of the fabric. This allows the fabric to be clamped first, and then the camera 7 to move horizontally.

[0067] Two insertion rods 39 are fixed on the top of the two lower pressure plates 30, and two insertion holes 38 are opened on the top of the two upper pressure plates 30 to be plugged into the insertion rods 39. When the lower pressure plate 30 moves, it can drive the upper pressure plate 30 to move through the insertion rods 39 and the insertion holes 38, and can also guide the upper pressure plate 30.

[0068] Two fourth guide rods 31 are fixedly mounted within the first and second connecting frames 20, 21, and the pressing plate 30 is slidably mounted on these rods. A second spring 32 is mounted on the outer wall of the fourth guide rods 31. The ends of the second spring 32 respectively contact the pressing plate 30 and one side of the first and second connecting frames 20, 21. The design of the second spring 32 helps provide cushioning during the movement of the pressing plate 30, reducing damage to the fabric. The second spring 32 also guides the pressing plate 30 via the fourth guide rods 31. The first and second springs 23, 32 are made of stainless steel or carbon steel.

[0069] A second rotating base 34 is fixed to the output end of the second electric push rod 33. A third rotating base 36 is welded to the adjacent sides of the two lower pressing plates 30. A second connecting rod 35 is rotatably mounted between the second and third rotating bases 34 and 36. A second L-shaped support rod 37 is fixedly connected to the second rotating base 34 at its bottom end. When the second electric push rod 33 is extended, the second connecting rod 35 can be used to drive the two lower pressing plates 30 away from each other. Simultaneously, the lower pressing plate 30 drives the upper pressing plate 30 to move using the insertion rod 39 and the insertion hole 38, thereby tightening and straightening the fabric, increasing the spacing between the warp and weft lines of the fabric to facilitate testing of the printing and dyeing effect. The shape of the pressing plate 30 can be selected according to the actual clamping requirements, such as rectangular, trapezoidal, or a special-shaped plate with a specific curvature (such as a curved or wavy contact surface). The key is to ensure sufficient friction and uniform pressure distribution in the contact area with the fabric to avoid damage to the fabric.

[0070] When in use, one end of the cloth is passed through the feed hole 4 and positioned between the second connecting frame 21 and the first connecting frame 20, and the other end of the cloth is connected to the winding mechanism;

[0071] The first electric push rod 16 is started to extend. During the extension process, the first electric push rod 16 can drive the second fixing rod 22 to move downward. During the downward movement of the second fixing rod 22, the two first springs 23 can drive the first fixing seat 18 to move downward. The third fixing seat 25 is used to drive the first connecting frame 20 to move closer to the second connecting frame 21, so that the upper and lower pressing plates 30 clamp the fabric.

[0072] The second electric push rod 33 is started to extend. During the extension process, the second connecting rod 35 can be used to drive the two lower pressing plates 30 to move away from each other. The lower pressing plate 30 can use the insertion rod 39 and the insertion hole 38 to drive the upper pressing plate 30 to move, which can tighten the fabric so that there is a gap between the warp and weft of the fabric. At the same time, the middle fabric is overlapped on the two second support rods 37 to form an inverted V shape.

[0073] The first electric push rod 16 is started to extend. During the extension process, the second fixing rod 22 can continue to move downward. The first connecting rod 29 can be used to drive the mounting base 26 to move on the third guide rod 28, thereby driving the camera 7 to move horizontally. The camera 7 on one side detects the fabric on the left side, and the camera 7 on the other side detects the fabric on the right side, and the detection image is displayed on the display screen 3;

[0074] After the detection on the left side is completed, the first electric push rod 16 is started to retract, so that the upper and lower pressure plates 30 are moved away from each other, the unwinding mechanism is started to unwind, and the rewinding mechanism is started to rewind, driving the cloth to move, so that the cloth on the left side is moved to the right side for detection at different angles.

[0075] However, as is well known to those skilled in the art, the working principles and wiring methods of the first electric push rod 16 and the second electric push rod 33 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A visual inspection device for printed and dyed products, arranged between a fabric unwinding mechanism and a fabric rewinding mechanism, characterized in that: include: A base (1) is arranged between the unwinding mechanism and the rewinding mechanism; A detection box (2) is fixedly mounted on the top of the base (1), and has feeding holes (4) on both sides for the cloth to pass through; A camera (7) is arranged in the detection box (2) and is used to detect the cloth; A display screen (3) is provided on one side of the detection box (2) and is connected to the camera (7); The tensioning mechanism is used for the cloth to be squeezed and deformed when passing through the tensioning mechanism, and the camera (7) detects the cloth from different angles.

2. The detection device according to claim 1, characterized in that The tensioning mechanism includes a fixing frame (8) and a plurality of first support rods (9), wherein the fixing frame (8) is fixed in the detection box (2), and the plurality of first support rods (9) are arranged in an inclined manner on the top of the fixing frame (8), and the number of the cameras (7) corresponds to the first support rods (9). A first guide rod (10) corresponding to the first support rod (9) is provided in the fixing frame (8), and a moving block (11) is slidably sleeved on the first guide rod (10), and a threaded hole (12) is provided at the top of the moving block (11), and a stud (13) is threadedly connected to the threaded hole (12), and the first support rod (9) is fixedly connected to the stud (13), and a plane portion (14) is provided at the top of the first guide rod (10), and the bottom end of the stud (13) contacts the plane portion (14).

3. The detection device according to claim 2, characterized in that A mushroom head (15) is provided at the top end of the first support rod (9), a first fixing rod (6) is fixedly provided in the detection box (2), and a plurality of cameras (7) are fixedly mounted on the first fixing rod (6).

4. The detection device according to claim 1, characterized in that The tensioning mechanism comprises a first connecting frame (20), a second connecting frame (21) and a driving assembly, wherein the second connecting frame (21) is fixed to the top of the base (1), and two pressing plates (30) are slidably provided on opposite sides of the first connecting frame (20) and the second connecting frame (21), and the driving assembly drives the upper pressing plate (30) to move downward to cooperate with the lower pressing plate (30) to clamp the fabric.

5. The detection device according to claim 4, characterized in that Two second electric push rods (33) are provided on the top of the second connection frame (21), and the output ends of the second electric push rods (33) are connected to the pressure plates (30) to drive the two groups of pressure plates (30) to move away from each other to tighten the fabric. Two second support rods (37) are also provided at the output ends of the second electric push rods (33), and the two cameras (7) are respectively located on both sides of the second support rods (37).

6. The detection device according to claim 5, characterized in that The driving assembly comprises a first electric push rod (16), the first electric push rod (16) being fixed to the top of the detection box (2), the output end of which extends into the detection box (2) and is connected to a second fixing rod (22), the bottom end of the second fixing rod (22) being connected to the first connection frame (20) via two third fixing seats (25).

7. The detection device according to claim 6, characterized in that Two second guide rods (17) are provided through the top of the detection box (2) and the second fixed rod (22), the bottom end of the second guide rod (17) is connected to the first fixed seat (18), the bottom of the first fixed seat (18) is fixed with the second fixed rod (22), a third guide rod (28) is provided between the two second fixed seats (24), the mounting seat (26) is slidably sleeved on the third guide rod (28), and the camera (7) is fixed to one side of the mounting seat (26).

8. The detection device according to claim 7, characterized in that A first rotating seat (27) is provided on the opposite side of the mounting seat (26) and the second fixed rod (22), and a first connecting rod (29) is rotatably connected between the two first rotating seats (27). A first spring (23) is sleeved on the outer wall of the first rotating seat (27), and the two ends of the first spring (23) respectively contact the second fixed rod (22) and the first fixed seat (18).

9. The detection device according to claim 5, characterized in that: The output end of the second electric push rod (33) is provided with a second rotating seat (34), the inner side of the lower pressure plate (30) is provided with a third rotating seat (36), a second connecting rod (35) is rotatably connected between the second rotating seat (34) and the third rotating seat (36), and the second support rod (37) is L-shaped and the bottom end is fixed to the second rotating seat (34).

10. A method for detecting printed and dyed products based on visual inspection, using the detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, passing the cloth through the feeding hole (4) and fixing it on the winding mechanism; S2, start the winding mechanism to tighten the fabric, and start the camera (7) for detection; S3, driving the pressing plate (30) to clamp the fabric via the first electric push rod (16); S4, driving the pressing plates (30) away from each other by the second electric push rod (33) to tighten the fabric; S5, the camera (7) is driven to move horizontally by the telescopic movement of the first electric push rod (16) to detect the fabric from different angles; S6. Display the test results on the display screen (3).

Images