Defect detection device for cable cage stranding process

Abstract

The utility model discloses a defect detection device for a cable cage stranding process, which belongs to the technical field of cable surface defect detection and comprises a shading shell, an image acquisition unit, a defect detection unit and a support structure, the image acquisition unit is arranged in the shading shell, and a cable via hole is formed in the shading shell; the image acquisition unit comprises an industrial camera, a lens and a light source; the light source comprises a point light source arranged right above the cable, and the point light source is used for ensuring uniform lighting when the cable passes through the image acquisition unit; the arched light source is arranged on the lower side of the cable, a hole is formed in the middle of the arched light source for installing an industrial camera and a lens, and the arched light source is used for ensuring obvious cable surface information imaging; and the defect detection unit comprises an industrial personal computer, a display and an alarm. According to the utility model, the detection precision can be improved, the detection stability is ensured, and the automation level of a production line is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cable surface defect detection technology, specifically to a defect detection device for cable cage stranding process. Background Technology

[0002] In the manufacturing process of wires and cables, the cage stranding process involves twisting and reinforcing multiple strands of conductors or cable cores in a specific manner to increase their mechanical strength and circuit capacity. However, due to the complex mechanical operations and differences in wire quality, defects such as broken wires may occur during the cage stranding process, threatening the quality and safety of wires and cables. Traditional methods for detecting broken wires in cage stranding mainly rely on manual visual inspection. This method is not only inefficient but also easily affected by human factors, resulting in a high rate of false positives and false negatives.

[0003] With the rapid development of artificial intelligence technology, significant breakthroughs have been achieved in using machine vision technology to replace manual measurement and judgment of images. This device, utilizing advanced AI algorithms and machine vision technology, can quickly and accurately identify potential defects in cable stranding processes, including broken wires, short circuits, and poor contact, effectively improving quality control on the production line. However, current AI-based defect detection technology is not yet mature, suffering from problems such as poor detection accuracy, difficulty in operation, and instability. Utility Model Content

[0004] The technical objective of this invention is to provide a defect detection device for cable cage stranding process, which can improve detection accuracy, ensure detection stability, and greatly enhance the automation level of the production line.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A defect detection device for cable stranding process includes a light-shielding housing, an image acquisition unit, a defect detection unit, and a support structure.

[0007] The light-shielding shell has an upper and lower opening and closing structure. The light-shielding shell is fixed by a support structure and can be opened and closed. An image acquisition unit is arranged inside the light-shielding shell, and a cable through hole is provided on the light-shielding shell to support the detection of online and offline operations at any time.

[0008] The image acquisition unit includes an industrial camera, a lens, and a light source; the light source includes:

[0009] A point light source is placed above the cable, with a hole in the center for mounting an industrial camera and lens. The point light source is used to ensure uniform lighting as the cable passes through the image acquisition unit.

[0010] An arched light source is placed under the cable. An industrial camera and lens are installed in the center of the arched light source. The arched light source is used to ensure that the information on the surface of the cable is clearly imaged.

[0011] The defect detection unit includes an industrial control computer, a monitor, and an alarm. The industrial control computer is connected to the image acquisition unit, and also to the monitor and alarm. The industrial control computer is responsible for analyzing and processing the images acquired by the image acquisition unit using defect detection algorithms, while the monitor and alarm are responsible for outputting the processing results in a predefined manner.

[0012] The defect detection device adopts an openable design, with pre-drilled round holes on each side to facilitate cable passage, ensuring that the defect detection device can be put on and taken off at any time.

[0013] Furthermore, the light-shielding shell is composed of a high-contrast background plate inside and is treated with anti-reflective coating, with its inner surface being an anti-reflective surface.

[0014] Furthermore, the support structure includes a support frame and a support gas strut fixed to the support frame;

[0015] The lower half of the light-shielding shell is fixed to the support frame, and the upper half of the light-shielding shell is connected to the support air rod;

[0016] The upper and lower halves of the light-shielding housing are connected by a rotating shaft and hinge located at one side connection point to achieve upper and lower opening and closing.

[0017] The light-shielding shell adopts an opening and closing design. It can be opened and closed manually or by gas spring, which ensures that opening and closing is effortless and can keep the lid open.

[0018] Furthermore, semi-circular holes are respectively opened on the side walls of the upper and lower halves of the light-shielding housing. When the upper and lower halves are closed, the semi-circular holes opened in the upper and lower halves combine to form the cable through hole.

[0019] Round holes are pre-drilled on the sides of the light-shielding housing to ensure the equipment can be connected and disconnected at any time. The size of the openings should be appropriate to prevent damage to the cables.

[0020] Furthermore, the bottom of the support structure is equipped with casters and adjustable support feet for easy forward and backward movement and fixation. When fixation is required, the adjustable support feet are lowered, and the casters are raised to achieve fixation.

[0021] Furthermore, a white high-contrast background plate is provided inside the light-shielding housing at the position opposite the point light source, so that the raised copper wire can be imaged with high contrast and the raised broken wire can be clearly displayed.

[0022] Furthermore, the arched light source and the point light source are arranged in a symmetrical layout to avoid interference between the two sets of light sources.

[0023] Furthermore, in the image acquisition unit, the industrial camera is fixed by adjusting elongated holes and bolts. The camera can be moved back and forth by tightening and loosening the bolts to adapt to different production lines and wire diameters.

[0024] Furthermore, the industrial control computer is installed in the lower part of the support structure; the industrial control computer is equipped with a computing module containing defect detection algorithms and programs;

[0025] A cooling fan assembly is also installed at the bottom of the support structure.

[0026] Furthermore, the display is fixedly mounted on one end of the top of the light-shielding housing by a fixing rod;

[0027] The alarm is fixed to the top of the light-shielding housing at the end furthest from the display.

[0028] The display and alarm will output the defect detection results in a predefined format, including the recognition results in the form of graphics, text and sound.

[0029] Compared with the prior art, the defect detection device for cable cage stranding process of this utility model has the following advantages:

[0030] 1. The device adopts an opening and closing design, which supports the installation and removal of cable quality testing equipment at any time, making it convenient for users.

[0031] 2. The device uses a point light source and an arched light source to ensure uniform lighting and clear imaging of cable surface information during the process of the cable passing through the image acquisition unit.

[0032] 3. This device is not only suitable for the production process of slender materials such as metal wires and fibers, but can also be applied to defect detection of other types of materials through appropriate adjustments and optimizations, and has strong versatility and scalability.

[0033] 4. A white background ensures high contrast in displaying the raised metal wires. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the cable cage stranding process defect detection device based on artificial intelligence machine vision provided in this utility model example;

[0035] Figure 2 A schematic diagram of the internal structure of the light-shielding shell provided in this utility model example.

[0036] In the diagram: 1. Light-shielding housing; 11. Upper part; 12. Lower part; 21. Point light source; 22. Arched light source; 31. Display; 32. Alarm; 33. Industrial computer; 4. Support structure; 41. Casters; 42. Adjustable support feet; 43. Support rod; 44. Wire diameter gauge; 5. Cable. Detailed Implementation

[0037] The present invention will be further described below with reference to specific embodiments.

[0038] This utility model provides a defect detection device for cable stranding process, including a light-shielding shell 1, an image acquisition unit 2, a defect detection unit 3, and a support structure 4.

[0039] like Figure 1 , Figure 2 As shown, the light-shielding housing 1 has an upper and lower opening and closing structure, including an upper part 11 and a lower part 12. The upper part 11 and the lower part 12 of the light-shielding housing 1 are connected by a rotating shaft and a hinge located at one side connection point to achieve upper and lower opening and closing, facilitating the easy addition and removal of the device from the production line. The interior of the light-shielding housing 1 is treated with anti-reflective material, and its interior mainly houses an industrial camera and a fixed light source.

[0040] The support structure 4 includes a support frame and a support air rod 43 fixed to the support frame. The lower half 12 of the light-shielding shell 1 is fixed to the support frame, and the upper half 11 of the light-shielding shell 1 is connected to the support air rod 43. The support air rod 43 is used to ensure that opening and closing is effortless and to maintain the open state.

[0041] The light-shielding housing 1 adopts an opening and closing design. It can be opened and closed manually or by gas spring, which ensures that opening and closing is effortless and can keep the cover open.

[0042] Semi-circular holes are respectively formed on the side walls of the upper half 11 and the lower half 12 of the light-shielding housing 1. When the upper half 11 and the lower half 12 are closed, the semi-circular holes formed by the upper half 11 and the lower half 12 combine to form the cable through-hole. Circular holes are pre-drilled on the side of the light-shielding housing 1 to ensure that the equipment can be connected and disconnected at any time. The size of the openings should be set appropriately to prevent scratching the cable 5.

[0043] An image acquisition unit 2 is arranged inside the light-shielding housing 1. The image acquisition unit 2 mainly consists of three sets of light sources and cameras. The image acquisition unit 2 includes an industrial camera, a lens, and light sources. The light sources mainly consist of two sets of light sources and cameras, including a particle light source camera and an arched light source camera, specifically arranged as follows:

[0044] A set of point light sources 21 is arranged directly above cable 5, such as Figure 2As shown, the point light source 21 is fixed inside the upper half 11 of the light-shielding housing 1. The point light source 21 is fixed inside the upper half 11 of the light-shielding housing 1 through adjusting elongated holes and bolts, and its position can be adjusted forward and backward, and up and down. The point light source 21 has an opening in the center for installing an industrial camera and lens. The main function of the point light source 21 is to ensure uniform lighting during the process of the cable 5 passing through the image acquisition unit.

[0045] The arched light source 22, arranged below cable 5, is as follows: Figure 1 , Figure 2 As shown, the arched light source 22 is fixed inside the lower half 12 of the light-shielding housing 1 by adjusting elongated holes and bolts, allowing for front and rear position adjustment. The arched light source 22 has openings in the middle for mounting industrial cameras and lenses. The main function of the arched light source is to ensure clear imaging of information on the cable surface.

[0046] In the image acquisition unit, the industrial cameras are fixed by adjusting elongated holes and bolts. The cameras can be moved back and forth by tightening and loosening the bolts to adapt to different production lines and wire diameters.

[0047] The arched light source and the point light source are arranged in a symmetrical layout to avoid interference between the two sets of light sources.

[0048] The light-shielding housing 1 is a housing with internal anti-reflective treatment, and its interior is mainly composed of a high-contrast background plate. A white high-contrast background plate is set inside the light-shielding housing 1 at the position opposite the point light source, so that the raised copper wire can be imaged with high contrast and the raised broken wire can be clearly displayed.

[0049] The defect detection unit 3 includes a display 31, an alarm 32, and an industrial control computer 33. The industrial control computer 3 is connected to the image acquisition unit 2, and also to the display 31 and the alarm 32. The industrial control computer 3 is responsible for analyzing and processing the images acquired by the image acquisition unit using a defect detection algorithm, and the display 31 and the alarm 32 are responsible for outputting the processing results in a predefined manner.

[0050] The display 31 is fixedly mounted on the top right side of the upper half 11 of the light-shielding housing 1 via a fixing rod; the alarm 32 is fixed on the top left side of the upper half 11 of the light-shielding housing 1. The industrial control computer 3 is installed in the lower part of the support frame. The industrial control computer 3 is equipped with a computing module containing defect detection algorithms and programs; the display 31 and the alarm 32 output the defect detection results in a predefined format, including outputting the recognition results in the form of graphics, text, and sound.

[0051] A cooling fan assembly is also installed at the lower part of the support structure 4 for ventilation and heat dissipation of the industrial control computer 3. The bottom of the support structure 4 is equipped with four casters 41 and four adjustable support feet 42 for easy forward and backward movement and fixation. When fixation is required, the adjustable support feet 42 are lowered, raising the four casters 41 to achieve fixation.

[0052] The defect detection device adopts an openable design, and the cable through holes reserved on its side facilitate the passage of cables, ensuring that the defect detection device can be put on and taken off at any time.

[0053] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

[0054] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

Claims

1. A defect detection device for cable cage stranding process, characterized in that, It includes a light-shielding housing, an image acquisition unit, a defect detection unit, and a support structure. The light-shielding shell has an upper and lower opening and closing structure, which is fixed by a support structure and achieves opening and closing fixation; an image acquisition unit is arranged inside the light-shielding shell, and cable through holes are provided on the light-shielding shell; The image acquisition unit includes an industrial camera, a lens, and a light source; the light source includes: The point light source is placed above the cable to ensure uniform lighting as the cable passes through the image acquisition unit; An arched light source is placed under the cable. An industrial camera and lens are installed in the center of the arched light source. The arched light source is used to ensure that the information on the surface of the cable is clearly imaged. The defect detection unit includes an industrial control computer, a display, and an alarm. The industrial control computer is connected to the image acquisition unit, and is also connected to the display and the alarm.

2. The defect detection device for cable cage stranding process according to claim 1, characterized in that, The light-shielding shell is made of a high-contrast background plate and is treated with anti-reflective coating. Its inner surface is an anti-reflective surface.

3. The defect detection device for cable cage stranding process according to claim 1, characterized in that, The support structure includes a support frame and a support gas strut fixed to the support frame; The lower half of the light-shielding shell is fixed to the support frame, and the upper half of the light-shielding shell is connected to the support air rod; The upper and lower halves of the light-shielding housing are connected by a rotating shaft and hinge located at one side connection point to achieve upper and lower opening and closing.

4. A defect detection device for cable cage stranding process according to claim 1 or 3, characterized in that, The upper and lower halves of the light-shielding housing have semi-circular holes on their side walls. When the upper and lower halves are closed, the semi-circular holes formed by the upper and lower halves combine to form the cable through hole.

5. A defect detection device for cable cage stranding process according to claim 1 or 3, characterized in that, The bottom of the support structure is equipped with casters and adjustable support feet.

6. The defect detection device for cable cage stranding process according to claim 1, characterized in that, A white high-contrast background plate is provided inside the light-shielding shell at the position opposite the point light source to enable high-contrast imaging of the raised copper wire.

7. The defect detection device for cable cage stranding process according to claim 1, characterized in that, The arched light source and the point light source are arranged in a symmetrical layout to avoid interference between the two sets of light sources.

8. The defect detection device for cable cage stranding process according to claim 1, characterized in that, In the image acquisition unit, the industrial camera is fixed by adjusting elongated holes and bolts, and the camera can be moved back and forth by tightening or loosening the bolts.

9. A defect detection device for cable cage stranding process according to claim 1 or 3, characterized in that, The industrial control computer is installed at the bottom of the supporting structure; the industrial control computer contains a computing module with defect detection algorithms and programs. A cooling fan assembly is also installed at the bottom of the support structure.

10. A defect detection device for cable cage stranding process according to claim 1, characterized in that, The display is fixedly mounted on one end of the top of the light-shielding housing by a fixing rod; The alarm is fixed to the top of the light-shielding housing at the end furthest from the display.

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