CN215953403U - Columnar product defect detection device - Google Patents
Columnar product defect detection device Download PDFInfo
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- CN215953403U CN215953403U CN202121247228.2U CN202121247228U CN215953403U CN 215953403 U CN215953403 U CN 215953403U CN 202121247228 U CN202121247228 U CN 202121247228U CN 215953403 U CN215953403 U CN 215953403U
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Abstract
The utility model discloses a defect detection device for columnar products, which is used for detecting defects of products to be detected and comprises a light source device and an imaging device; the light source device includes: the emergent light rays of the at least two light sources respectively irradiate the product to be detected from different directions and form primary reflected light rays after being reflected by the product to be detected; and the reflection assemblies correspond to the at least two light sources one to one, and reflect the primary reflection light rays to the imaging device for imaging so as to realize defect detection of the product to be detected. The utility model utilizes the emergent light of two or more light sources to cover the whole side surface of the columnar product, can detect the defects of the whole side surface of the columnar product in one-time imaging, saves the complicated steps of sequentially detecting the product to be detected from all directions, shortens the detection time, improves the efficiency and reduces the cost of the product.
Description
Technical Field
The utility model relates to the technical field of optical detection, in particular to a defect detection device for columnar products.
Background
In the production process of various products, in order to ensure the quality of the final finished product, the appearance of the whole outer surface of the product needs to be detected. So as to avoid the defects of scratches, depressions and the like on the appearance surface of the product.
In the prior art, the defect detection means mainly utilizes a light source to irradiate the outer surface of a product, then images in an imaging device, and finally analyzes the surface characteristics of the product based on the formed images. For the columnar product, the detection in a single direction can not realize the detection of the whole surface of the columnar product, and the defect detection needs to be carried out in each direction, so that the detection time is too long, the production efficiency of the product is influenced, and the cost of the product is improved to a certain extent.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a columnar product defect detection device, which solves the problems that the production efficiency of a product is influenced due to overlong detection time consumption in the prior art, and the production, manufacturing and detection cost of the product is overhigh to a certain extent.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a defect detection device for columnar products is used for detecting defects of products to be detected and comprises a light source device and an imaging device;
the light source device includes:
the emergent light rays of the at least two light sources respectively irradiate the product to be detected from different directions and form primary reflected light rays after being reflected by the product to be detected;
and the reflection assemblies correspond to the at least two light sources one to one, and reflect the primary reflection light rays to the imaging device for imaging so as to realize defect detection of the product to be detected.
Optionally, the reflective assembly comprises:
the primary reflectors are in one-to-one correspondence with the at least two light sources, the primary reflectors are arranged on optical axes of the primary reflected light rays, and the primary reflected light rays are reflected by the primary reflectors to form secondary reflected light rays;
and the secondary reflectors are in one-to-one correspondence with the at least two primary reflectors and are arranged on the optical axis of the secondary reflection light, and the secondary reflection light is reflected by the secondary reflectors to form tertiary reflection light.
Optionally, each of the three reflected light beams is coaxial, and the imaging device is disposed on an optical axis of the three reflected light beams.
Optionally, the light source device includes two light sources, two primary mirrors corresponding to the two light sources, and two secondary mirrors corresponding to the two primary mirrors, respectively.
Optionally, the defect detection device for the columnar product further comprises a total reflection prism, and the two secondary reflection mirrors are respectively arranged on two side surfaces of the total reflection prism corresponding to the two right-angle sides;
the total reflection prism and the imaging device are coaxial with the product to be detected, emergent rays of the two light sources irradiate the product to be detected on two sides, and the two primary reflectors are respectively arranged on two sides of the total reflection prism.
Optionally, the product to be measured is transparent or semitransparent, part of the emergent light of the light source passes through the product to be measured to form transmission light, the transmission light enters the primary reflector on the other side and is reflected to the corresponding secondary reflector, and finally enters the imaging device.
Optionally, the light source device further comprises an outer shell, a hollow accommodating space is arranged in the outer shell, the accommodating space comprises a light source accommodating area used for accommodating the light source device, and a feeding hole used for feeding a product to be tested is formed in the bottom of the light source accommodating area of the outer shell.
Optionally, an accommodating port for avoiding the product to be detected is formed in the top of the light source accommodating area of the outer shell.
Optionally, the accommodating space further includes an imaging device accommodating area for accommodating the imaging device, and a sliding groove is formed in the outer shell at the bottom of the imaging accommodating area;
the imaging device comprises a lens, and the lens is slidably arranged in the sliding groove.
Optionally, a guide seat is arranged at one end of the outer shell, which is located at the sliding groove, and a guide groove is formed in the guide seat;
the imaging device further comprises a lens arranged at one end of the camera, and the lens is slidably arranged in the guide groove.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a defect detection device for columnar products, which utilizes emergent rays of two or more light sources to cover the whole side surface of the columnar product, can detect the defects of the whole side surface of the columnar product in one-time imaging, omits the complicated steps of sequentially detecting the products to be detected from all directions, shortens the detection time, thereby improving the production rate of the products and reducing the cost of the products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an image light path diagram of a defect detection device for a cylindrical product according to the present invention;
FIG. 2 is a schematic structural diagram of a defect detection apparatus for a cylindrical product according to the present invention;
fig. 3 is a schematic diagram of an internal structure of the defect detection apparatus for a cylindrical product according to the present invention.
In the above figures: 10. an outer housing; 11. a chute; 12. a guide seat; 121. a guide groove; 13. a wire outlet hole; 131. a first light source line; 132. a second light source line; 14. a feed inlet; 15. an accommodating port; 21. a camera; 22. a lens; 311. a first light source; 312. a second light source; 321. a first primary mirror; 322. a second primary mirror; 33. a total reflection prism; 331. a first secondary mirror; 332. a second secondary mirror; 40. a product to be tested; 41. and (4) a conveyor belt.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, an embodiment of the utility model provides a defect detecting apparatus for a columnar product, which includes a light source apparatus and an imaging apparatus, and is used for detecting defects of a product 40 to be detected. The product 40 to be measured may be cylindrical or prismatic, or may be irregular cylindrical such as beer bottle or beverage bottle.
In this embodiment, the light source device includes:
the emergent light rays of the at least two light sources respectively irradiate the product to be measured 40 from different directions and form primary reflected light rays after being reflected by the product to be measured 40; it is understood that the illuminated area of the at least two light sources on the product 40 to be tested can cover the entire side surface of the product 40 to be tested.
And the reflecting assemblies correspond to the at least two light sources one to one, and reflect the primary reflected light rays into the imaging device for imaging so as to realize the defect detection of the product 40 to be detected.
Further, in this embodiment, the reflection assembly includes primary reflectors corresponding to the at least two light sources one to one, and secondary reflectors corresponding to the at least two primary reflectors one to one.
Specifically, the primary reflector is arranged on an optical axis of the primary reflected light, and the primary reflected light is reflected by the primary reflector to form secondary reflected light; the secondary reflector is arranged on an optical axis of the secondary reflected light, and the secondary reflected light is reflected by the secondary reflector to form a third reflected light.
It is understood that each of the three reflected light beams is coaxial, and the imaging device is disposed on the optical axis of the three reflected light beams. Therefore, the three reflected light beams formed after being reflected by the respective secondary mirrors can be simultaneously incident into the imaging device for imaging.
Specifically, in the present embodiment, the light source device includes a first light source 311, a second light source 312, a first primary reflecting mirror 321, a second primary reflecting mirror 322 corresponding to the first light source 311 and the second light source 312, respectively, and a first secondary reflecting mirror 331 and a second secondary reflecting mirror 332 corresponding to the first primary reflecting mirror 321 and the second primary reflecting mirror 322, respectively.
In addition, the defect detection device for the columnar product further comprises a total reflection prism 33, and the two first secondary reflectors 331 and the second secondary reflector 332 are respectively arranged on two side surfaces of the total reflection prism 33, which correspond to the two right-angle sides; the total reflection prism 33 and the imaging device are coaxial with the product 40 to be measured, the emergent light of the first light source 311 and the emergent light of the second light source 312 irradiate the product 40 to be measured on two sides, and the first primary reflector 321 and the second primary reflector 322 are respectively arranged on two sides of the total reflection prism 33. The arrangement of the total reflection prism 33 can simplify the arrangement steps of the respective structures in the light source device.
Based on the foregoing structure, after the positions of the imaging device, the product 40 to be measured, and the total reflection prism 33 are determined, the arrangement positions and angles of the primary reflecting mirrors and the light source can be determined by common knowledge calculation in the optical field.
Further, the product 40 to be measured is transparent or translucent, such as a glass bottle or a plastic bottle, and the like, and can be filled with contents such as liquid. Based on this, part of the emergent light of the light source forms transmission light through the product 40 to be measured, and the setting position of the primary reflector on the other side is just positioned on the optical axis of the transmission light, so that the transmission light enters the primary reflector and is reflected to the corresponding secondary reflector, and finally the transmission light can enter the imaging device for imaging.
Based on this, the defect detection device for the columnar product can realize the detection of the outer surface of the product 40 to be detected, such as scratches, dirt and the like, and detect the shapes of the inner wall and the outer wall of the product 40 to be detected; in addition, the detection of the content filled in the product 40 to be detected can be realized, for example, whether the content is filled in place, whether impurities are mixed in the content, and the like.
Furthermore, part of emergent light of the light source can be directly incident into the imaging device, so that the light supplementing effect is achieved, a detection background with light and shade contrast is provided, and accurate identification of defect characteristics is facilitated.
Referring to fig. 1 to fig. 3, based on the foregoing embodiment, in the present embodiment, the apparatus for detecting defects of a cylindrical product further includes an outer casing 10, a hollow accommodating space is disposed in the outer casing 10, the accommodating space includes a light source accommodating area for accommodating the light source device, and a feeding hole 14 for feeding a product to be detected 40 is disposed at the bottom of the light source accommodating area of the outer casing 10. The workpiece to be measured may be sequentially conveyed to the feed port 14 by a conveying device such as a conveyor belt 41.
Further, the outer shell 10 is provided with an accommodating opening 15 for avoiding the product 40 to be measured at the top of the light source accommodating area, and when the workpiece to be measured is placed in the feeding hole 14, the top of the workpiece can be placed in the accommodating opening 15, so as to position the product 40 to be measured.
The outer shell 10 is further provided with an outlet hole 13, and the outlet hole 13 is used for reserving routing positions of the first light source line 131 of the first light source 311 and the second light source line 132 of the second light source 312.
In addition, the accommodating space further includes an imaging device accommodating area for accommodating an imaging device, and a sliding groove 11 is formed in the outer shell 10 at the bottom of the imaging accommodating area; the imaging device includes a lens 22, and the lens 22 is slidably disposed in the chute 11. A guide seat 12 is arranged at one end of the sliding chute 11 in the outer shell 10, and a guide groove 121 is formed in the guide seat 12; the imaging device further includes a lens 22 disposed at one end of the camera 21, and the lens 22 is slidably disposed in the guide groove 121.
The positions of the camera 21 and the lens 22 can be adjusted through the guide groove 121 and the guide holder 12, so as to adjust parameters such as imaging focal length, depth of field and definition.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a defect detection device for columnar products, which enables two or more light sources to irradiate the surface of a product in each direction, so that emergent rays of the light sources can cover the whole side surface of the columnar product, thereby realizing defect detection on the side surface of the columnar product in one-time imaging, omitting the complicated steps of sequentially carrying out defect detection in each direction, shortening the detection time, improving the production rate of the product and reducing the cost of the product.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A defect detection device for columnar products is used for detecting defects of products to be detected and is characterized by comprising a light source device and an imaging device;
the light source device includes:
the emergent light rays of the at least two light sources respectively irradiate the product to be detected from different directions and form primary reflected light rays after being reflected by the product to be detected;
and the reflection assemblies correspond to the at least two light sources one to one, and reflect the primary reflection light rays to the imaging device for imaging so as to realize defect detection of the product to be detected.
2. The cylindrical product defect detecting device according to claim 1, wherein the reflection assembly comprises:
the primary reflectors are in one-to-one correspondence with the at least two light sources, the primary reflectors are arranged on optical axes of the primary reflected light rays, and the primary reflected light rays are reflected by the primary reflectors to form secondary reflected light rays;
and the secondary reflectors are in one-to-one correspondence with the at least two primary reflectors and are arranged on the optical axis of the secondary reflection light, and the secondary reflection light is reflected by the secondary reflectors to form tertiary reflection light.
3. The apparatus according to claim 2, wherein each of the three times of reflected light beams is coaxial, and the imaging device is disposed on an optical axis of the three times of reflected light beams.
4. The cylindrical product defect detecting apparatus according to claim 1, wherein said light source means comprises two light sources, two primary reflecting mirrors corresponding to said two light sources, and two secondary reflecting mirrors corresponding to said two primary reflecting mirrors, respectively.
5. The defect detecting device for columnar products as claimed in claim 4, wherein said defect detecting device for columnar products further comprises a total reflection prism, said two secondary reflectors are respectively disposed on two side surfaces of said total reflection prism corresponding to two right-angle sides;
the total reflection prism and the imaging device are coaxial with the product to be detected, emergent rays of the two light sources irradiate the product to be detected on two sides, and the two primary reflectors are respectively arranged on two sides of the total reflection prism.
6. The apparatus of claim 5, wherein the product to be inspected is transparent or translucent, and a part of the emergent light of the light source passes through the product to be inspected to form a transmission light, and the transmission light enters the primary reflector at the other side and is reflected to the corresponding secondary reflector, and finally enters the imaging device.
7. The defect detection device for cylindrical products according to claim 1, further comprising an outer shell, wherein a hollow accommodating space is arranged in the outer shell, the accommodating space comprises a light source accommodating area for accommodating the light source device, and a feed inlet for feeding the products to be detected is arranged at the bottom of the light source accommodating area of the outer shell.
8. The cylindrical product defect detecting device of claim 7, wherein the top of the light source containing area of the outer shell is provided with a containing opening for avoiding the product to be detected.
9. The defect detecting device for the columnar products according to claim 7, wherein the accommodating space further comprises an imaging device accommodating area for accommodating the imaging device, and a sliding groove is formed in the outer shell at the bottom of the imaging accommodating area;
the imaging device comprises a lens, and the lens is slidably arranged in the sliding groove.
10. The defect detecting device for the columnar product according to claim 9, wherein a guide seat is arranged at one end of the outer shell, which is positioned on the sliding groove, and a guide groove is formed on the guide seat;
the imaging device further comprises a lens arranged at one end of the camera, and the lens is slidably arranged in the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121247228.2U CN215953403U (en) | 2021-06-04 | 2021-06-04 | Columnar product defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121247228.2U CN215953403U (en) | 2021-06-04 | 2021-06-04 | Columnar product defect detection device |
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| Publication Number | Publication Date |
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| CN215953403U true CN215953403U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121247228.2U Active CN215953403U (en) | 2021-06-04 | 2021-06-04 | Columnar product defect detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347383A (en) * | 2023-12-06 | 2024-01-05 | 中材新材料装备科技(天津)有限公司 | System and method for detecting and automatically repairing surface defects of calcium silicate plate |
-
2021
- 2021-06-04 CN CN202121247228.2U patent/CN215953403U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347383A (en) * | 2023-12-06 | 2024-01-05 | 中材新材料装备科技(天津)有限公司 | System and method for detecting and automatically repairing surface defects of calcium silicate plate |
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