Foil surface flaw detection equipment
By designing a foil surface defect detection device with a combination of multi-camera light sources, the problem of low efficiency and easy omissions in manual visual inspection was solved, and efficient and accurate defect detection was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, the detection of surface defects in foil materials relies on manual visual inspection, which leads to low efficiency, easy omissions and errors, and affects the quality control of foil materials.
Design a foil surface defect detection device that uses a combination of multiple cameras and light sources to identify defects on the foil surface by acquiring optical images and converting them into electrical signals.
It achieves efficient and accurate detection of surface defects on foil materials, reduces manual visual inspection, and improves detection efficiency and accuracy.
Smart Images
Figure CN224052041U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to foil detection technical field, especially a kind of foil surface flaw detection equipment. BACKGROUND
[0002] Copper foil and aluminum foil are commonly used materials in the production and manufacturing process of lithium battery, and the quality of foil in lithium battery determines the overall quality of lithium battery, so before using foil, the quality of foil needs to be detected, and the surface quality of foil is one of important indicators to determine the quality of foil.
[0003] Holes, scratches, indentations, concave and convex points, black spots and cracks exist on the surface of foil, and the surface defects of foil are currently inspected by relying on manual visual inspection, which not only leads to time-consuming and laborious surface defect detection of foil with low efficiency, but also is prone to miss and misdiagnosis, thereby affecting the quality control of foil. UTILITY MODEL CONTENT
[0004] In order to facilitate the detection of flaws on the surface of foil, the present application provides a kind of foil surface flaw detection equipment.
[0005] The foil surface flaw detection equipment provided by the present application adopts the following technical scheme:
[0006] A kind of foil surface flaw detection equipment, including rack, the guide roller assembly is provided on the rack, the guide roller assembly is used to form detection gap, the detection gap is used for foil movement, first camera, second camera and second light source are provided above the detection gap, first light source, third camera and third camera are provided below the detection gap, the first camera is oppositely arranged with first light source, the first camera is used to collect the transmission light generated by first light source through foil, the second camera and second light source are movably connected with rack, the second camera is used to collect the reflection light generated by second light source through foil, the third camera and third light source are movably connected with rack, and the third camera is used to collect the reflection light generated by third light source through foil.
[0007] By adopting the above technical scheme, when the foil surface is detected, the foil moves along the detection gap through the guide roller assembly. During the movement of the foil, the foil first passes between the first camera and the first light source, the light generated by the first light source is directed to the foil, the first camera collects the transmitted light generated by the first light source through the foil, then the foil passes below the second camera and the second light source, the light generated by the second light source is directed to the foil, the second camera collects the reflected light generated by the second light source through the foil, finally the foil passes above the third camera and the third light source, the light generated by the third light source is directed to the foil, the third camera collects the reflected light generated by the third light source through the foil, when the foil surface has defects, the first camera, the second camera and the third camera will have interference patterns in the optical image, using the technology of converting the optical image into an electrical signal, the identification of the interference pattern is realized, the manual inspection of the foil surface defects is reduced, and the effect of facilitating the foil surface detection is achieved.
[0008] Preferably, the guide roller assembly comprises a unwinding roller, a winding roller, a set of input rollers and a set of output rollers, the unwinding roller, the winding roller, the input rollers and the output rollers are all rotationally arranged on the rack, the input rollers and the input rollers are all located between the unwinding roller and the winding roller, the unwinding roller is located on the side away from the output roller of the input roller, and the winding roller is located on the side away from the input roller of the output roller, one of the input rollers is located directly above the other input roller, one of the output rollers is located directly above the other output roller, the detection gap is located between the input rollers, and the detection gap is located between the output rollers. The first camera, the first light source, the second camera, the second light source, the third camera and the third light source are all located between the input rollers and the output rollers.
[0009] By adopting the above technical scheme, one end of the foil is wound on the unwinding roller, the other end of the foil is wound on the winding roller, and the foil passes between the input rollers and the output rollers. When the unwinding roller unwinds the foil and the winding roller winds the foil, the foil moves between the input rollers and the output rollers, achieving the effect of moving the foil along the detection gap.
[0010] Preferably, the rack is fixedly provided with a second rotating support and a second transverse support, the second rotating support and the second transverse support are oppositely arranged, a set of second guide grooves are formed in the second rotating support, and a second guide block is slidably arranged in the second guide groove. One of the second guide blocks is rotationally connected with the second camera, and the other second guide block is rotationally connected with the second light source. A set of second transverse grooves are formed in the second transverse support, and a second transverse block is slidably arranged in the second transverse groove. One of the second transverse blocks is rotationally connected with the second camera, and the other second transverse block is rotationally connected with the second light source.
[0011] By adopting the technical scheme, the second guide block is slidingly installed on the second rotating support, the second transverse moving block is slidingly installed on the second transverse moving support, the second light source is rotatably installed between one set of the second guide blocks and the second transverse moving block, and the second camera is rotatably installed between another set of the second guide blocks and the second transverse moving block. The distance between the second camera and the second light source is adjusted, and the incident angle of the second light source and the collection angle of the second camera are adjusted, so that the second camera collects reflected light generated by the second light source through the surface flawless foil.
[0012] Preferably, a second transverse moving screw is rotatably arranged in the second transverse moving groove, the second transverse moving screw is in threaded connection with the second transverse moving block, one end of the second transverse moving screw penetrates through the second transverse moving support, and a second transverse moving knob is fixedly arranged at an end of the second transverse moving screw outside the second transverse moving support.
[0013] By adopting the technical scheme, when the distance between the second camera and the second light source is adjusted, the second transverse moving screw is rotated, the second transverse moving screw drives the second transverse moving block to move along the second transverse moving groove, one second transverse moving block drives the second camera to move transversely, and the other second transverse moving block drives the second light source to move, so that the distance between the second camera and the second light source is adjusted.
[0014] Preferably, a second rotating seat is fixedly arranged on the second guide block, a second rotating shaft is rotatably arranged on the second rotating seat, one second rotating shaft is fixedly connected with the second camera, the other second rotating shaft is fixedly connected with the second light source, a second gear is sleeved on the second rotating shaft, the second gear is fixedly connected with the second rotating shaft, a second rotating groove is formed in the second rotating seat, a second rotating block is slidingly arranged in the second rotating groove, a second rack is fixedly arranged on the second rotating block, the second rack is in meshing connection with the second gear, a second rotating screw is rotatably arranged in the second rotating groove, the second rotating screw is in threaded connection with the second rotating block, one end of the second rotating screw penetrates through the second rotating seat, and a second rotating knob is fixedly arranged at an end of the second rotating screw outside the second rotating seat.
[0015] By adopting the technical scheme, when the incident angle of the second light source and the collection angle of the second camera are adjusted, the second rotating screw is rotated, the second rotating screw drives the second rotating block to move along the second rotating groove, the second rotating block drives the second rack to move, the second rack drives the second gear to rotate, the second gear drives the second rotating shaft to rotate, one second rotating shaft drives the second camera to rotate, the collection angle of the second camera is adjusted, the other second rotating shaft drives the second light source to rotate, and the incident angle of the second light source is adjusted.
[0016] As preferred, the third rotating support and the third horizontal moving support are fixedly arranged on the frame, the third rotating support and the third horizontal moving support are oppositely arranged, a group of third guide grooves are formed on the third rotating support, a third guide block is slidably arranged in the third guide groove, one of the third guide blocks is rotatably connected with the third camera, and the other third guide block is rotatably connected with the third light source, a group of third horizontal moving grooves are formed on the third horizontal moving support, a third horizontal moving block is slidably arranged in the third horizontal moving groove, one of the third horizontal moving blocks is rotatably connected with the third camera, and the other third horizontal moving block is rotatably connected with the third light source.
[0017] By adopting the above technical scheme, the third guide block is slidably arranged on the third rotating support, the third horizontal moving block is slidably arranged on the third horizontal moving support, the third light source is rotatably arranged between one group of third guide blocks and third horizontal moving blocks, and the third camera is rotatably arranged between the other group of third guide blocks and third horizontal moving blocks, so that the third camera collects the reflected light generated by the third light source through the surface of the flawless foil by adjusting the distance between the third camera and the third light source, adjusting the incident angle of the third light source, and adjusting the collection angle of the third camera.
[0018] As preferred, the third horizontal moving screw is rotatably arranged in the third horizontal moving groove, the third horizontal moving screw is threadedly connected with the third horizontal moving block, one end of the third horizontal moving screw penetrates through the third horizontal moving support, and a third horizontal moving knob is fixedly arranged at the end of the third horizontal moving screw outside the third horizontal moving support.
[0019] By adopting the above technical scheme, when the distance between the third camera and the third light source is adjusted, the third horizontal moving screw is rotated, the third horizontal moving screw drives the third horizontal moving block to move along the third horizontal moving groove, one third horizontal moving block drives the third camera to horizontally move, and the other third horizontal moving block drives the third light source to move, so as to achieve the effect of adjusting the distance between the third camera and the third light source.
[0020] As preferred, a third rotating seat is fixedly arranged on the third guide block, a third rotating shaft is rotatably arranged on the third rotating seat, one of the third rotating shafts is fixedly connected with the third camera, and the other third rotating shaft is fixedly connected with the third light source, a third gear is sleeved on the third rotating shaft, the third gear is fixedly connected with the third rotating shaft, a third rotating groove is formed on the third rotating seat, a third rotating block is slidably arranged in the third rotating groove, a third rack is fixedly arranged on the third rotating block, the third rack is intermeshed with the third gear, a third rotating screw is rotatably arranged in the third rotating groove, the third rotating screw is threadedly connected with the third rotating block, one end of the third rotating screw penetrates through the third rotating seat, and a third rotating knob is fixedly arranged at the end of the third rotating screw outside the third rotating seat.
[0021] By adopting the above technical scheme, when the third light source incidence angle and the third camera collection angle are adjusted, the third rotating screw is rotated, the third rotating screw drives the third rotating block to move along the third rotating groove, the third rotating block drives the third rack to move, the third rack moving drives the third gear to rotate, the third gear rotating drives the third rotating shaft to rotate, one of the third rotating shafts rotating drives the third camera to rotate, achieving the effect of adjusting the third camera collection angle, and the other third rotating shaft rotating drives the third light source to rotate, achieving the effect of adjusting the third light source incidence angle.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. By setting the rack, the guide roller assembly, the detection gap, the first camera, the second camera, the second light source, the first light source, the third camera and the third camera, when there are flaws on the surface of the foil, the first camera, the second camera and the third camera will have interference patterns in the optical image. Using the technology of converting optical image into electrical signal, the identification of interference patterns is realized, reducing the manual visual inspection of foil surface defects, and achieving the effect of convenient foil surface detection;
[0024] 2. By setting the unwinding roller, the winding roller, the input roller and the output roller, the effect of moving the foil along the detection gap is realized;
[0025] 3. By setting the second rotating support, the second transverse support, the second guide groove, the second guide block, the second transverse groove and the second transverse block, the second camera and the second light source are movably installed on the rack;
[0026] 4. By setting the third rotating support, the third transverse support, the third guide groove, the third guide block, the third transverse groove and the third transverse block, the third camera and the third light source are movably installed on the rack. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a sectional view of a foil surface flaw detection device in an embodiment of the present application.
[0028] Figure 2 is a sectional view of the present application embodiment showing the position relationship between the unwinding roller and the winding roller.
[0029] Figure 3 is a schematic view of the present application embodiment showing the connection relationship between the second camera, the second light source and the second transverse support.
[0030] Figure 4 is a schematic view of the present application embodiment showing the connection relationship between the third camera, the third light source and the third transverse support.
[0031] Figure 5is a sectional view embodying the positional relationship of the first camera, the second camera and the third camera in the embodiment of the present application.
[0032] Figure 6 is a sectional view embodying the positional relationship of the input roller and the output roller in the embodiment of the present application.
[0033] Figure 7 is a schematic view embodying the connection relationship of the second camera, the second light source and the second rotating support in the embodiment of the present application.
[0034] Figure 8 is a schematic view embodying the connection relationship of the third camera, the third light source and the third rotating support in the embodiment of the present application.
[0035] BRIEF DESCRIPTION OF DRAWINGS 1, rack; 2, guide roller assembly; 21, unwinding roller; 22, winding roller; 23, input roller; 24, output roller; 3, detection gap; 31, first camera; 32, first light source; 33, second camera; 34, second light source; 35, third camera; 36, third light source; 4, second rotating support; 41, second guide groove; 42, second guide block; 43, second rotating seat; 44, second rotating shaft; 45, second gear wheel; 46, second rotating groove; 47, second rotating block; 48, second rack; 49, second rotating screw; 491, second rotating knob; 5, second transverse moving support; 51, second transverse moving groove; 52, second transverse moving block; 53, second transverse moving screw; 531, second transverse moving knob; 6, third rotating support; 61, third guide groove; 62, third guide block; 63, third rotating seat; 64, third rotating shaft; 65, third gear wheel; 66, third rotating groove; 67, third rotating block; 68, third rack; 69, third rotating screw; 691, third rotating knob; 7, third transverse moving support; 71, third transverse moving groove; 72, third transverse moving block; 73, third transverse moving screw; 731, third transverse moving knob; 8, foil. DETAILED DESCRIPTION
[0036] The following will be described in detail below with reference to the accompanying drawings. Figures 1-8 The present application will be further described in detail.
[0037] The embodiment of the present application discloses a foil surface flaw detection device. Referring to Figure 1 and Figure 2, including a rack 1, a guide roller assembly 2 is installed on the rack 1, and the guide roller assembly 2 forms a detection gap 3 for the foil 8 to move. The first camera 31, the second camera 33 and the second light source 34 are installed above the detection gap 3, and the first light source 32, the third camera 35 and the third camera 35 are installed below the detection gap 3. The first light source 32, the second light source 34 and the third light source 36 are LED light sources, and the first camera 31, the second camera 33 and the third camera 35 are all CCD cameras. The first camera 31 is arranged opposite to the first light source 32, and the first camera 31 is used to collect the transmitted light generated by the first light source 32 through the foil 8. The second camera 33 and the second light source 34 are both movably connected with the rack 1, and the second camera 33 is used to collect the reflected light generated by the second light source 34 through the foil 8. The third camera 35 and the third light source 36 are both movably connected with the rack 1, and the third camera 35 is used to collect the reflected light generated by the third light source 36 through the foil 8. When detecting the surface of the foil 8, the foil 8 is moved along the detection gap 3 through the guide roller assembly 2. During the movement of the foil 8, first, the foil 8 passes between the first camera 31 and the first light source 32, the light generated by the first light source 32 is directed to the foil 8, and the first camera 31 collects the transmitted light generated by the first light source 32 through the foil 8, then the foil 8 passes below the second camera 33 and the second light source 34, the light generated by the second light source 34 is directed to the foil 8, and the second camera 33 collects the reflected light generated by the second light source 34 through the foil 8, finally, the foil 8 passes above the third camera 35 and the third light source 36, the light generated by the third light source 36 is directed to the foil 8, and the third camera 35 collects the reflected light generated by the third light source 36 through the foil 8. When there is a defect on the surface of the foil 8, there will be an interference pattern in the optical image collected by the first camera 31, the second camera 33 and the third camera 35. Using the technology of converting the optical image into an electrical signal, the identification of the interference pattern is realized, the manual visual inspection of the surface defects of the foil 8 is reduced, and the effect of facilitating the surface detection of the foil 8 is achieved.
[0038] In order to move the foil 8 along the detection gap 3, with reference to Figure 1 and Figure 2The guide roller assembly 2 comprises a pay-off roller 21, a winding roller 22, a set of input rollers 23 and a set of output rollers 24, and the pay-off roller 21, the winding roller 22, the input rollers 23 and the output rollers 24 are all rotatably installed on the rack 1. The first camera 31, the first light source 32, the second camera 33, the second light source 34, the third camera 35 and the third camera 35 are all located between the input rollers 23 and the output rollers 24, and the input rollers 23 and the input rollers 23 are both located between the pay-off roller 21 and the winding roller 22. The pay-off roller 21 is located on the side of the input roller 23 away from the output roller 24, and the winding roller 22 is located on the side of the output roller 24 away from the input roller 23. One of the input rollers 23 is located directly above the other input roller 23, and the detection gap 3 is located between the input rollers 23; one of the output rollers 24 is located directly above the other output roller 24, and the detection gap 3 is located between the output rollers 24. One end of the foil 8 is wound on the pay-off roller 21, the other end of the foil 8 is wound on the winding roller 22, and the foil 8 passes between the input rollers 23 and the output rollers 24. When the pay-off roller 21 unwinds the foil 8 and the winding roller 22 winds the foil 8, the foil 8 moves between the input rollers 23 and the output rollers 24.
[0039] In order for the second camera 33 to collect the reflected light generated by the second light source 34 passing through the surface flawless foil 8, with reference to Figures 1 to 6 The rack 1 is provided with a second rotating support 4 and a second transverse support 5, and the second rotating support 4 and the second transverse support 5 are oppositely arranged. A set of second guide grooves 41 are symmetrically formed on the second rotating support 4, and a second guide block 42 is slidably arranged in the second guide groove 41. One of the second guide blocks 42 is rotatably connected with the second camera 33, and the other second guide block 42 is rotatably connected with the second light source 34. A set of second transverse grooves 51 are formed on the second transverse support 5, and a second transverse block 52 is slidably arranged in the second transverse groove 51. One of the second transverse blocks 52 is rotatably connected with the second camera 33, and the other second transverse block 52 is rotatably connected with the second light source 34. The second guide block 42 is slidably installed on the second rotating support 4, the second transverse block 52 is slidably installed on the second transverse support 5, the second light source 34 is rotatably installed between one set of second guide blocks 42 and second transverse blocks 52, and the second camera 33 is rotatably installed between the other set of second guide blocks 42 and second transverse blocks 52. By adjusting the distance between the second camera 33 and the second light source 34, adjusting the incident angle of the second light source 34 and the collection angle of the second camera 33, the second camera 33 can collect the reflected light generated by the second light source 34 passing through the surface flawless foil 8.
[0040] With reference to Figure 3, the second horizontal moving groove 51 is rotationally provided with a second horizontal moving screw 53, and the second horizontal moving screw 53 is threadedly connected with the second horizontal moving block 52. One end of the second horizontal moving screw 53 penetrates through the second horizontal moving support 5, and the second horizontal moving screw 53 is provided at an end outside the second horizontal moving support 5 with a second horizontal moving knob 531. When the distance between the second camera 33 and the second light source 34 is adjusted, the second horizontal moving screw 53 is rotated, and the second horizontal moving screw 53 drives the second horizontal moving block 52 to move along the second horizontal moving groove 51. One of the second horizontal moving blocks 52 drives the second camera 33 to move horizontally, and the other second horizontal moving block 52 drives the second light source 34 to move, so as to adjust the distance between the second camera 33 and the second light source 34.
[0041] With reference to Figure 6 and Figure 7 , the second rotating seat 43 is installed on the second guide block 42, the second rotating shaft 44 is rotationally provided on the second rotating seat 43, one of the second rotating shafts 44 is fixedly connected with the second camera 33, and the other second rotating shaft 44 is fixedly connected with the second light source 34. The second gear 45 is sleeved on the second rotating shaft 44, and the second gear 45 is welded with the second rotating shaft 44. The second rotating groove 46 is formed on the second rotating seat 43, and the second rotating block 47 is slidingly arranged in the second rotating groove 46. The second rack 48 is installed on the second rotating block 47, and the second rack 48 is meshed with the second gear 45. The second rotating screw 49 is rotationally provided in the second rotating groove 46, and the second rotating screw 49 is threadedly connected with the second rotating block 47. One end of the second rotating screw 49 penetrates through the second rotating seat 43, and the second rotating screw 49 is provided at an end outside the second rotating seat 43 with a second rotating knob 491. When the incident angle of the second light source 34 and the collection angle of the second camera 33 are adjusted, the second rotating screw 49 is rotated, the second rotating screw 49 drives the second rotating block 47 to move along the second rotating groove 46, the second rotating block 47 drives the second rack 48 to move, the second rack 48 drives the second gear 45 to rotate, and the second gear 45 drives the second rotating shaft 44 to rotate. One of the second rotating shafts 44 drives the second camera 33 to rotate, so as to adjust the collection angle of the second camera 33; the other second rotating shaft 44 drives the second light source 34 to rotate, so as to adjust the incident angle of the second light source 34.
[0042] In order to enable the third camera 35 to collect the reflected light generated by the third light source 36 through the surface flawless foil 8, with reference to Figures 1 to 6, a third rotating support 6 and a third horizontal moving support 7 are installed on the rack 1, and the third rotating support 6 and the third horizontal moving support 7 are oppositely arranged. A group of third guide grooves 61 are symmetrically formed on the third rotating support 6, and a third guide block 62 is slidably arranged in the third guide groove 61. One third guide block 62 is rotationally connected with the third camera 35, and the other third guide block 62 is rotationally connected with the third light source 36. A group of third horizontal moving grooves 71 are symmetrically formed on the third horizontal moving support 7, and a third horizontal moving block 72 is slidably arranged in the third horizontal moving groove 71. One third horizontal moving block 72 is rotationally connected with the third camera 35, and the other third horizontal moving block 72 is rotationally connected with the third light source 36. The third guide block 62 is slidably installed on the third rotating support 6, the third horizontal moving block 72 is slidably installed on the third horizontal moving support 7, the third light source 36 is rotationally installed between one group of third guide blocks 62 and third horizontal moving blocks 72, and the third camera 35 is rotationally installed between the other group of third guide blocks 62 and third horizontal moving blocks 72. The third camera 35 collects the reflected light generated by the third light source 36 through the surface flawless foil material 8 by adjusting the distance between the third camera 35 and the third light source 36, adjusting the incident angle of the third light source 36, and adjusting the collection angle of the third camera 35.
[0043] With reference to Figure 4 , a third horizontal moving screw 73 is rotationally arranged in the third horizontal moving groove 71, and the third horizontal moving screw 73 is threadedly connected with the third horizontal moving block 72. One end of the third horizontal moving screw 73 penetrates through the third horizontal moving support 7, and the third horizontal moving screw 73 is installed with a third horizontal moving knob 731 at the end outside the third horizontal moving support 7. When the distance between the third camera 35 and the third light source 36 is adjusted, the third horizontal moving screw 73 is rotated, and the third horizontal moving screw 73 drives the third horizontal moving block 72 to move along the third horizontal moving groove 71. One third horizontal moving block 72 drives the third camera 35 to horizontally move, and the other third horizontal moving block 72 drives the third light source 36 to move, thereby achieving the effect of adjusting the distance between the third camera 35 and the third light source 36.
[0044] With reference to Figure 6 and Figure 8The third rotating seat 63 is provided with a third rotating groove 66, and the third rotating block 67 is slidably arranged in the third rotating groove 66. The third rotating block 67 is provided with a third rack 68, and the third rack 68 is engaged with the third gear 65. The third rotating groove 66 is rotatably provided with a third rotating screw 69, and the third rotating screw 69 is threadedly connected with the third rotating block 67. One end of the third rotating screw 69 penetrates through the third rotating seat 63, and the third rotating screw 69 is provided with a third rotating knob 691 at the end outside the third rotating seat 63. When the incident angle of the third light source 36 and the collection angle of the third camera 35 are adjusted, the third rotating screw 69 is rotated, the third rotating screw 69 drives the third rotating block 67 to move along the third rotating groove 66, the third rotating block 67 drives the third rack 68 to move, the third rack 68 drives the third gear 65 to rotate, and the third gear 65 drives the third rotating shaft 64 to rotate. One of the third rotating shafts 64 drives the third camera 35 to rotate, so that the collection angle of the third camera 35 is adjusted; the other third rotating shaft 64 drives the third light source 36 to rotate, so that the incident angle of the third light source 36 is adjusted.
[0045] The implementation principle of the foil surface flaw detection equipment is that when the foil 8 is detected, the foil 8 is moved along the detection gap 3 through the guide roller assembly 2. During the movement of the foil 8, the foil 8 first passes between the first camera 31 and the first light source 32, the first light source 32 generates light to the foil 8, the first camera 31 collects the transmission light generated by the first light source 32 through the foil 8, then the foil 8 passes below the second camera 33 and the second light source 34, the second light source 34 generates light to the foil 8, the second camera 33 collects the reflection light generated by the second light source 34 through the foil 8, and finally the foil 8 passes above the third camera 35 and the third light source 36, the third light source 36 generates light to the foil 8, and the third camera 35 collects the reflection light generated by the third light source 36 through the foil 8. When the foil 8 has a flaw on the surface, the first camera 31, the second camera 33 and the third camera 35 collect the optical image, and there is an interference pattern in the optical image. Using the technology of converting the optical image into an electrical signal, the interference pattern is identified, the manual visual inspection of the foil 8 surface defects is reduced, and the foil 8 surface detection is facilitated.
[0046] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A foil surface defect inspection apparatus comprising a frame, a guide roll assembly provided on the frame, the guide roll assembly being configured to form an inspection gap for a foil to move through, characterized in that: The first camera, the second camera and the second light source are arranged above the detection gap, and the first light source, the third camera and the third camera are arranged below the detection gap.
2. The foil surface defect inspection apparatus according to claim 1, wherein: The guide roller assembly comprises a pay-off roller, a winding roller, a group of input rollers and a group of output rollers, the pay-off roller, the winding roller, the input rollers and the output rollers are rotationally arranged on the rack, the input rollers and the output rollers are located between the pay-off roller and the winding roller, the pay-off roller is located on the side of the input roller away from the output roller, and the winding roller is located on the side of the output roller away from the input roller, one of the input rollers is located directly above the other input roller, one of the output rollers is located directly above the other output roller, the detection gap is located between the input rollers, and the detection gap is located between the output rollers.
3. The foil surface defect inspection apparatus according to claim 1, wherein: The second rotating support and the second transverse support are fixedly arranged on the rack, the second rotating support and the second transverse support are oppositely arranged, a group of second guide grooves are formed in the second rotating support, and a second guide block is slidably arranged in the second guide groove, one of the second guide blocks is rotationally connected with the second camera, and the other second guide block is rotationally connected with the second light source, a group of second transverse grooves are formed in the second transverse support, and a second transverse block is slidably arranged in the second transverse groove, one of the second transverse blocks is rotationally connected with the second camera, and the other second transverse block is rotationally connected with the second light source.
4. The foil surface defect inspection apparatus according to claim 3, wherein: The second transverse screw is rotationally arranged in the second transverse groove, the second transverse screw is threadedly connected with the second transverse block, one end of the second transverse screw penetrates through the second transverse support, and the other end of the second transverse screw located outside the second transverse support is fixedly provided with a second transverse knob.
5. The foil surface defect inspection apparatus according to claim 3, wherein: The second rotating seat is fixedly arranged on the second guide block, the second rotating shaft is rotationally arranged on the second rotating seat, one of the second rotating shafts is fixedly connected with the second camera, and the other second rotating shaft is fixedly connected with the second light source, the second gear is sleeved on the second rotating shaft, the second gear is fixedly connected with the second rotating shaft, the second rotating groove is formed in the second rotating seat, the second rotating block is slidably arranged in the second rotating groove, the second rack is fixedly arranged on the second rotating block, the second rack is intermeshed with the second gear, the second rotating screw is rotationally arranged in the second rotating groove, the second rotating screw is threadedly connected with the second rotating block, one end of the second rotating screw penetrates through the second rotating seat, and the other end of the second rotating screw located outside the second rotating seat is fixedly provided with a second rotating knob.
6. The foil surface defect inspection apparatus according to claim 1, wherein: The third rotating support and the third transverse support are fixedly arranged on the frame, and oppositely arranged, a group of third guide grooves are formed on the third rotating support, and a third guide block is slidably arranged in the third guide groove, one of the third guide blocks is rotationally connected with the third camera, and the other third guide block is rotationally connected with the third light source, a group of third transverse grooves are formed on the third transverse support, and a third transverse block is slidably arranged in the third transverse groove, one of the third transverse blocks is rotationally connected with the third camera, and the other third transverse block is rotationally connected with the third light source.
7. The foil surface defect inspection apparatus according to claim 6, wherein: A third transverse screw is rotationally arranged in the third transverse groove, the third transverse screw is threadedly connected with the third transverse block, one end of the third transverse screw penetrates through the third transverse support, and a third transverse knob is fixedly arranged at an end of the third transverse screw outside the third transverse support.
8. The foil surface defect inspection apparatus according to claim 6, wherein: A third rotating seat is fixedly arranged on the third guide block, a third rotating shaft is rotationally arranged on the third rotating seat, one of the third rotating shafts is fixedly connected with the third camera, and the other third rotating shaft is fixedly connected with the third light source, a third gear is sleeved on the third rotating shaft, the third gear is fixedly connected with the third rotating shaft, a third rotating groove is formed on the third rotating seat, a third rotating block is slidably arranged in the third rotating groove, a third rack is fixedly arranged on the third rotating block, the third rack is intermeshed with the third gear, a third rotating screw is rotationally arranged in the third rotating groove, the third rotating screw is threadedly connected with the third rotating block, one end of the third rotating screw penetrates through the third rotating seat, and a third rotating knob is fixedly arranged at an end of the third rotating screw outside the third rotating seat.