Metal coil defect detection device

Abstract

The utility model relates to a metal coiled material defect detection device which comprises a machine frame, an edge cutting mechanism and a guide roller assembly are arranged on the machine frame, the guide roller assembly is used for guiding conveying of a metal coiled material, the edge cutting mechanism is used for cutting two side edges of the metal coiled material, a first winding roller is further arranged on the machine frame and used for collecting the cut side edges, and a second winding roller is arranged on the machine frame and used for collecting the cut side edges. The rack is further provided with a first camera assembly and a second camera assembly, and the first camera assembly and the second camera assembly are arranged on the upper side and the lower side of the metal coiled material correspondingly and used for conducting double-face detection on the unfolded metal coiled material. According to the metal coiled material defect detection device, the first camera assembly and the second camera assembly are additionally arranged on the metal coiled material edge cutting equipment, the upper side face and the lower side face of the unfolded and edge-cut plate are subjected to image taking detection, manual plate defect detection is replaced, the detection efficiency can be greatly improved, and the human subjectivity and missing detection conditions are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal coil processing, and particularly relates to a metal coil defect detection device. Background Art

[0002] During the production process of metal coils, defects will occur on the edges of the products, and the width dimension accuracy is not very high. Therefore, during actual use, trimming is required, that is, a narrow strip is cut off from both sides in the width direction to improve the quality of the metal coil. Common metal coils are made of materials such as copper and stainless steel. The utility model patent with the authorization announcement number CN205673676U discloses an edge material shredding device. After the metal coil is unfolded, it is trimmed by a disc cutter. In addition to the side edges, there may also be defects on the surface of the metal coil. At present, it is mainly observed manually. After finding a defect, a marker pen is used to make a mark, and the defective and unusable parts marked are avoided in subsequent specific use links. By manual observation, it is not only time-consuming and subject to certain subjective judgments, but also may result in missed inspections. Content of the Utility Model

[0003] The purpose of the utility model is to provide a metal coil defect detection device to solve the problem of time-consuming and laborious caused by manually detecting the surface defects of metal coils.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A metal coil defect detection device includes a frame. An edge trimming mechanism and a guide roller assembly are arranged on the frame. The guide roller assembly is used to guide the transportation of the metal coil, and the edge trimming mechanism is used to cut the two side edges of the metal coil. A first winding roller is also arranged on the frame for collecting the cut side edges. A first camera assembly and a second camera assembly are also arranged on the frame. The first camera assembly and the second camera assembly are respectively arranged on the upper and lower sides of the metal coil for double-sided detection of the unfolded metal coil.

[0006] Further, the edge trimming mechanism includes a first trimming roller and a second trimming roller. One of the first trimming roller and the second trimming roller is a power roller. A cutting knife is arranged on the outer peripheral surface of one of the first trimming roller and the second trimming roller, and a circumferential cutting groove is arranged on the outer peripheral surface of the other.

[0007] Further, the first camera assembly includes a first light source cover and a first camera. The first camera is arranged downward, and the second camera assembly includes a second light source cover and a second camera. The second camera is arranged upward.

[0008] Further, the guiding roller assembly includes an upper guiding roller and a lower guiding roller. The metal coil passes between the upper guiding roller and the lower guiding roller. The metal coil defect detection device further includes a first flattening module and a second flattening module which are arranged at intervals in the metal coil conveying direction. Both the first flattening module and the second flattening module include an upper pressing plate and a lower pressing plate. The lower pressing plate is floatingly arranged on the pressing plate bracket, and the pressing plate bracket is fixed on the machine frame. The metal coil passes between the upper pressing plate and the lower pressing plate; the area between the first flattening module and the second flattening module is the camera detection area.

[0009] Further, two guide posts are provided on the lower side of the lower pressing plate. The guide posts pass through the lower pressing plate downward, and springs are sleeved on the guide posts. The two ends of the springs respectively abut against the lower pressing plate and the pressing plate bracket; a limiting member is provided on the pressing plate bracket for limiting the extreme position of the downward movement of the lower pressing plate.

[0010] Further, the limiting member is a bolt.

[0011] Further, the metal coil defect detection device further includes a labeling mechanism. The labeling mechanism includes a lifting module and a labeling module. The lifting module is used to drive the labeling module to perform a lifting action. The labeling module includes a bottom plate, a unwind roller, a recovery roller, a plurality of guide cylinders, a separating member and a labeling force application part. The unwind roller is used to place the release paper roll. The guide cylinders are used to guide the paper tape after the release paper roll is unwound. The single release paper of the release paper roll can be opened and in a state of waiting to be pasted when passing through the position of the separating member. The labeling module moves downward and can paste the release paper in the state of waiting to be pasted on the surface of the metal coil through the labeling force application part.

[0012] Advantages of the present utility model:

[0013] For the metal coil defect detection device of the present utility model, the first and second camera assemblies are added to the metal coil trimming equipment to take images of the upper and lower sides of the unfolded and trimmed plate, replacing manual inspection of the plate defects, which can greatly improve the inspection efficiency and avoid human subjectivity and missed inspection situations.

[0014] Further, by setting the labeling mechanism, after the camera detects a surface defect at a certain position of the plate, the labeling mechanism can be controlled by the control system to act once, and the release paper is pasted on the plate as a label, serving as a defect mark. When using the plate later, the defective part can be cut off to avoid using unqualified plates. Description of the Drawings

[0015] Figure 1 is a perspective view of a metal coil defect detection device of the present utility model;

[0016] Figure 2 is Figure 1Schematic diagram of the distribution of the middle guide roller assembly and the flattening assembly;

[0017] Figure 3 Is a three-dimensional view of the labeling mechanism;

[0018] Figure 4 Is Figure 3 Three-dimensional view of the middle labeling module;

[0019] Figure 5 Is the installation schematic diagram of the first camera and the camera bracket.

[0020] 1. Metal coil; 21. First cutting roller; 31. First light source cover; 32. First camera; 33. Second light source cover; 34. Camera bracket; 41. Servo motor; 42. Linear module; 5. Labeling module; 51. Recycling roller; 52. Unwinding roller; 53. Paper tape; 54. Labeling force application part; 55. Separation part; 56. Baseband; 57. Base plate; 581. First guide cylinder; 582. Second guide cylinder; 583. Third guide cylinder; 584. Fourth guide cylinder; 6. First winding roller; 7. Second winding roller; 81. First guide roller; 82. Second guide roller; 83. Third guide roller; 84. Fourth guide roller; 85. Fifth guide roller; 91. Upper pressing plate; 92. Lower pressing plate; 93. Spring; 94. Guide post; 95. Pressing plate bracket. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0022] Embodiments of the present invention:

[0023] As Figures 1 - 5 shown, a metal coil defect detection device includes a frame. An edge trimming mechanism and a guide roller assembly are provided on the frame. The guide roller assembly is used to guide the transportation of the metal coil 1, and the edge trimming mechanism is used to cut the two side edges of the metal coil 1. The edge trimming mechanism used is an existing one without improvement. The edge trimming mechanism includes an upper and lower first cutting roller 21 and a second cutting roller. One of the first cutting roller 21 and the second cutting roller is a power roller. A cutter is provided on the outer peripheral surface of one of the first cutting roller 21 and the second cutting roller, and a circumferential cutting groove is provided on the outer peripheral surface of the other. The cutter and the circumferential cutting groove are both provided in pairs. As the cutting roller rotates, the two side edges of the metal coil 1 are cut off. It is defined that the edge trimming mechanism is located on the right side of the guide roller assembly.

[0024] The machine frame is also provided with a first winding roller 6 for collecting the cut side edges; there are two first winding rollers 6, corresponding to the side strips on both sides respectively. The machine frame is also provided with a second winding roller 7 for rewinding the sheet after trimming.

[0025] The machine frame is also provided with a first camera assembly and a second camera assembly. The first camera assembly and the second camera assembly are respectively arranged on the upper and lower sides of the metal coil 1 for detecting both sides of the sheet after the metal coil is unrolled. The first camera assembly includes a first light source cover 31 and a first camera 32. The first camera 32 is arranged downward and is fixed to the machine frame of the equipment through a camera support 34. The second camera assembly includes a second light source cover 33 and a second camera. The second camera is arranged upward. Both the first and second cameras are industrial cameras capable of image acquisition. The acquired images are sent to an industrial computer for image processing to judge whether there are defects on the surface and also to detect the width dimension of the sheet after trimming. A light source can be installed inside the light source cover, and an existing light source used in cooperation with the camera can be used to shine light on the surface of the unrolled sheet, which is beneficial for acquiring clearer images. The light source cover is provided with a light passing hole corresponding to the camera lens.

[0026] Figure 2 As shown, the guide roller assembly includes an upper guide roller and a lower guide roller, and the metal coil 1 passes between the upper guide roller and the lower guide roller. In this embodiment, 5 guide rollers are provided, and from left to right, there are a first guide roller 81, a second guide roller 82, and a third guide roller 83 in sequence. There is also a fourth guide roller 84 and a fifth guide roller 85 arranged from right to left. The first guide roller 81, the second guide roller 82, and the third guide roller 83 belong to the upper guide rollers, and the axes of the guide rollers are in the same horizontal plane; the fourth guide roller 84 and the fifth guide roller 85 belong to the lower guide rollers, and the axes of the guide rollers are in the same horizontal plane.

[0027] Figure 2 As shown, the metal coil defect detection device further includes a first flattening module and a second flattening module arranged at intervals in the conveying direction of the metal coil 1. Both the first flattening module and the second flattening module include an upper pressing plate 91 and a lower pressing plate 92. The lower pressing plate 92 is floatingly arranged on a pressing plate bracket 95, and the pressing plate bracket 95 is fixed to the machine frame. The sheet after the metal coil is unrolled passes between the upper pressing plate 91 and the lower pressing plate 92. Since the lower pressing plate 92 is floating, it can maintain a state of abutting against the lower side of the sheet upward. The area between the first flattening module and the second flattening module is the camera detection area. In other embodiments, the flattening module may not be provided.

[0028] Figure 2As shown in the figure, two guide posts 94 are provided on the lower side of the lower pressing plate 92. The guide posts 94 pass through the lower pressing plate 92 downward. A spring 93 is sleeved on the guide posts 94. The two ends of the spring 93 respectively abut against the lower pressing plate 92 and the pressing plate bracket 95. The spring 93 has a tendency to push the lower pressing plate 92 upward. A limiting member is provided on the pressing plate bracket 95 to limit the extreme position of the downward movement of the lower pressing plate 92, so that the distance between the upper and lower pressing plates 92 will not be too large and the flattening effect will not be lost. Further, the limiting member is a bolt. One end of the bolt abuts against the lower pressing plate 92, and the other end is a plum blossom head, which is convenient for screwing operation. The limiting member is a threaded member and can adjust the limiting height; in other embodiments, the limiting member can also be set as an immovable fixed column.

[0029] Figure 1 and 3 As shown in the figure, the metal coil defect detection device further includes a labeling mechanism. The labeling mechanism includes a lifting module and a labeling module 5. The lifting module is used to drive the labeling module 5 to perform lifting actions. The lifting module adopts a linear module 42 driven by a servo motor 41 and is vertically fixed on the frame. The linear module 42 is a prior art. The sliding plate of the linear module 42 is connected to a transmission plate, and the labeling module 5 is fixed to the transmission plate by bolts, so as to drive the labeling module 5 to descend and ascend by using the linear module 42 to complete labeling and withdrawal. The labeling refers to using a release paper type label to label and mark the defective area of the plate. The defect is detected by the above-mentioned camera.

[0030] Figure 3 and 4As shown, the labeling module 5 includes a bottom plate 57, an unwinding roller 52, a recycling roller 51, a plurality of guide cylinders, a separating member 55 and a labeling force application portion 54. The unwinding roller 52 is used to place the release paper roll and is fixed. The recycling roller 51 is a power roller driven by a servo motor 41 and is used to rewind the paper tape 53 after the release paper label is removed. The guide cylinders are used to guide the paper tape 53 after the release paper roll is unwound. In this embodiment, there are four guide cylinders, denoted as the first guide cylinder 581, the second guide cylinder 582, the third guide cylinder 583, and the fourth guide cylinder 584. When a single piece of release paper of the release paper roll passes through the position of the separating member 55, it can open and be in a state of waiting to be labeled. Because the commutation angle here is relatively large (close to 180 degrees), the single piece of release paper is separated from the base tape 56 but does not completely fall off, which is also common knowledge in the field of automatic labeling. The labeling force application portion 54 has an arc-shaped portion. When the labeling module 5 moves downward, the release paper in the state of waiting to be labeled can be attached to the surface of the metal coil through the labeling force application portion 54. The release paper, as a label, completely separates from the base tape 56 and is pasted on the plate. During use, if the camera detects a defect on the plate, a signal is sent to the labeling mechanism through the control system of the industrial computer. The recycling roller 51 rotates a certain angle, and the paper tape moves, so that a piece of release paper is in a state of waiting to be labeled. Then, the linear module controls the overall downward movement of the labeling module to attach the release paper as a label to the plate, and then the whole moves upward to reset and waits for the next marking.

Claims

1. A metal coil defect detection device, comprising a frame, on which a trimming mechanism and a guide roller assembly are provided, wherein the guide roller assembly is used to guide the conveying of the metal coil, and the trimming mechanism is used to cut both sides of the metal coil, characterized in that: The frame is also provided with a first winding roller for collecting the cut side edges. The frame is also provided with a first camera assembly and a second camera assembly. The first camera assembly and the second camera assembly are respectively arranged on the upper and lower sides of the metal coil for double-sided inspection of the unfolded metal coil.

2. The metal coil defect detection device according to claim 1, characterized in that: The trimming mechanism comprises a first cutting roller and a second cutting roller, one of which is a power roller, a cutting knife is arranged on the outer circumference of one of the first cutting roller and the second cutting roller, and an annular cutting groove is arranged on the outer circumference of the other.

3. The metal coil defect detection device according to claim 1, characterized in that: The first camera assembly includes a first light source cover and a first camera, and the first camera is arranged downward. The second camera assembly includes a second light source cover and a second camera, and the second camera is arranged upward.

4. The metal coil defect detection device according to claim 1, characterized in that: The guide roller assembly includes an upper guide roller and a lower guide roller, and the metal coil passes between the upper guide roller and the lower guide roller. The metal coil defect detection device also includes a first flattening module and a second flattening module arranged at intervals in the conveying direction of the metal coil. The first flattening module and the second flattening module both include an upper pressure plate and a lower pressure plate. The lower pressure plate is floatingly arranged on a pressure plate bracket, and the pressure plate bracket is fixed on a frame. The metal coil passes between the upper pressure plate and the lower pressure plate; the area between the first flattening module and the second flattening module is a camera detection area.

5. The metal coil defect detection device according to claim 4, characterized in that: Two guide posts are provided on the lower side of the lower pressure plate, and the guide posts pass through the lower pressure plate downward. A spring is sleeved on the guide posts, and the two ends of the spring respectively abut against the lower pressure plate and the pressure plate bracket; a limit piece is provided on the pressure plate bracket for limiting the extreme position of the downward movement of the lower pressure plate.

6. The metal coil defect detection device according to claim 5, characterized in that: The limiting member is a bolt.

7. The metal coil defect detection device according to any one of claims 1 to 6, characterized in that: The metal coil defect detection device also includes a labeling mechanism, which includes a lifting module and a labeling module. The lifting module is used to drive the labeling module to lift and lower. The labeling module includes a bottom plate, a reel roller, a recovery roller, a plurality of guide cylinders, a separator and a labeling force application part. The reel roller is used to place a release paper roll, and the guide cylinder is used to guide the paper tape after the release paper roll is unfolded. A single release paper of the release paper roll can be opened and in a state to be pasted when passing the position of the separator. The labeling module moves downward and can paste the release paper in the state to be pasted on the surface of the metal coil through the labeling force application part.

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