A coated iron surface inspection device

Abstract

The utility model relates to the technical field of film -coated iron production equipment, in order to solve the problem of low film -coated iron surface detection efficiency, disclose a film -coated iron surface inspection device, including the box, the both ends of box set up feed port and discharge gate respectively, the end of box inside near feed port sets up no. The end of box inside near discharge gate sets up no. Film -coated iron passes through feed port, no. The film -coated iron film side between no. The utility model improves the detection precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of coated iron production equipment, and specifically to a coated iron surface inspection device. Background Technology

[0002] Coated steel is a new type of composite material that combines the properties of plastic film and metal sheet by laminating plastic film onto the surface of a metal substrate through hot melting or adhesive bonding. Compared with traditional tin-plated steel packaging materials, coated steel has the advantages of green and environmentally friendly production, with no waste liquid or exhaust gas emissions, and no harmful substances such as bisphenol A and melamine. Therefore, coated steel is widely used as a metal packaging material in the metal packaging industry.

[0003] Because the surface quality of coated tinplate has a significant impact on the quality, safety, and corrosion resistance of its packaged contents, and because coated tinplate produced on the production line may have certain quality defects, such as bubbles, wrinkles, or bumps caused by foreign matter inclusions in the surface film, quality inspection is a crucial step in coated tinplate production, ensuring the final quality of the coated tinplate. Currently, surface quality inspection of coated tinplate mainly relies on manual visual inspection. This leads to small defects being easily overlooked by the naked eye, resulting in a high error rate, and also inconveniences such as long inspection time and low efficiency. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention provides a surface inspection device for coated iron, which can quickly detect defects such as blistering, wrinkles, and bumps caused by foreign matter inclusions on the surface of coated iron.

[0005] This utility model discloses a surface inspection device for coated iron, including a housing. One end of the housing has an inlet, and the other end has an outlet. A first traction roller group is located inside the housing near the inlet, and a second traction roller group is located inside the housing near the outlet. A drive motor is mounted on the housing to drive the first and second traction roller groups. The coated iron passes sequentially through the inlet, the first traction roller group, the second traction roller group, and the outlet. The coated side of the coated iron is located between the first and second traction roller groups. A third roller is provided, which is made of transparent material. A reflective layer is provided inside the third roller along its length. One side of the reflective layer extends to the outer circumference of the third roller, and when the reflective layer on this side contacts the coated iron, the reflective surface of the reflective layer and the coated iron form a 135-degree angle. A vertically downward-facing laser generator is provided on the box directly above the reflective layer. The laser emitted by the laser generator is planar. A camera is provided on the box between the first traction roller group and the laser generator. A screen is provided on the outside of the box, and the camera is electrically connected to the screen.

[0006] The principle of the above scheme is that the laser emitted by the laser generator is reflected by the reflective layer inside the No. 3 roller. Since the reflective surface is at a 135-degree angle to the coated iron, and the laser generator is located directly above the reflective layer and shining vertically downwards, the laser is parallel to the surface of the coated iron after reflection. When abnormalities such as bubbles, wrinkles, or bumps appear on the surface of the coated iron, they will block the laser, causing abnormal light brightness at that point. The camera captures the light changes caused by the surface abnormalities and transmits the images to an external screen in real time, realizing rapid and automated defect detection, replacing inefficient manual visual inspection. It should be noted that since the No. 3 roller rotates, the laser shining on the reflective layer and being reflected is periodic. Therefore, the camera can also periodically take pictures to observe the condition of the coated iron.

[0007] To prevent interference from secondary laser reflection and diffuse reflection, the No. 1 traction roller group, the No. 2 traction roller group, and the inner surface of the box are black.

[0008] The surface inspection device for coated iron obtained by this invention has the following advantages: by setting up a transparent No. 3 roller with a specific angle reflective layer inside, the vertical laser is converted into irradiation light parallel to the surface of the coated iron, and a camera is used to capture abnormal changes in light caused by surface defects, so as to realize rapid and automated detection of defects such as blistering, wrinkles, and bumps on the surface of coated iron. This device effectively overcomes the shortcomings of traditional manual visual inspection, such as low efficiency and easy omission, and improves the detection accuracy and efficiency. At the same time, the black inner surface of the box and roller group effectively suppresses the interference of secondary reflection and diffuse reflection of the laser, ensuring the reliability of the detection results. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0010] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0011] Example 1:

[0012] like Figure 1As shown, this utility model discloses a surface inspection device for coated iron, including a housing 1. One end of the housing 1 has an inlet 3, and the other end has an outlet 8. A first traction roller group 2 is located inside the housing 1 near the inlet 3, and a second traction roller group 7 is located inside the housing 1 near the outlet 8. The first traction roller group 2, the second traction roller group 7, and the inner surface of the housing 1 are black. A drive motor is installed on the housing 1 to drive the first traction roller group 2 and the second traction roller group 7. The coated iron 4 passes sequentially through the inlet 3, the first traction roller group 2, the second traction roller group 7, and the outlet 8. A No. 3 roller 5 is provided on the coated side of the coated iron 4 between group 7. The No. 3 roller 5 is made of transparent material. A reflective layer 6 is provided inside the No. 3 roller 5 along the length direction of the No. 3 roller 5. One side of the reflective layer 6 extends to the outer peripheral surface of the No. 3 roller 5. When the reflective layer 6 on this side contacts the coated iron 4, the reflective surface of the reflective layer 6 forms a 135-degree angle with the coated iron 4. A vertically downward laser generator 9 is provided on the box 1 directly above the reflective layer 6. The laser emitted by the laser generator 9 is in the form of a surface. A camera 11 is provided on the box 1 between the No. 1 traction roller group 2 and the laser generator 9. A screen 10 is provided on the outside of the box 1. The camera 11 is electrically connected to the screen 10.

[0013] The principle of the above scheme is that the laser emitted by the laser generator 9 is reflected by the reflective layer 6 inside the No. 3 roller 5. Since the reflective surface is at a 135-degree angle to the coated iron 4, and the laser generator 9 is located directly above the reflective layer 6 and shines vertically downward, the laser is parallel to the surface of the coated iron 4 after reflection. When abnormalities such as bubbles, wrinkles, or bumps appear on the surface of the coated iron 4, they will block the laser, causing abnormal light brightness at that point. The camera 11 captures the light changes caused by the surface abnormalities and transmits the images to the external screen 10 in real time, realizing fast and automated defect detection, replacing inefficient manual visual inspection. It should be noted that since the No. 3 roller 5 is rotating, the laser shines on the reflective layer 6 and is reflected periodically. Therefore, the camera 11 can also periodically take pictures to observe the condition of the coated iron 4.

Claims

1. A coated iron surface inspection apparatus, characterized by: The box includes a housing with a feed inlet at one end and a discharge outlet at the other. A first traction roller group is located inside the housing near the feed inlet, and a second traction roller group is located inside the housing near the discharge outlet. A drive motor is mounted on the housing to drive the first and second traction roller groups. The coated iron passes sequentially through the feed inlet, the first traction roller group, the second traction roller group, and the discharge outlet. A third roller is located on the coated side of the coated iron between the first and second traction roller groups. Made of transparent material, a reflective layer is set inside the No. 3 roller along the length of the No. 3 roller. One side of the reflective layer extends to the outer circumference of the No. 3 roller, and when the reflective layer on this side contacts the coated iron, the reflective surface of the reflective layer and the coated iron form a 135-degree angle. A vertically downward-facing laser generator is set on the box directly above the reflective layer. The laser emitted by the laser generator is in the shape of a surface. A camera is set on the box between the No. 1 traction roller group and the laser generator. A screen is set on the outside of the box, and the camera is electrically connected to the screen.

2. The coated iron surface inspection apparatus according to claim 1, characterized by: The No. 1 traction roller group, the No. 2 traction roller group, and the inner surface of the box are black.

Images