Detection line light source and light source detection device
By designing a detection line light source with a long strip case and a combined optical element, the problem of light source occupying space during large-area product detection is solved, and efficient and equipment-saving detection effect is achieved.
Patent Information
- Application Number
- CN202422260787.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-13
AI Technical Summary
When the existing detection line light sources detect products with larger areas, multiple light sources need to be set up to occupy too much space, resulting in inconvenient production implementation.
Design a detection line light source with a long shell, with the outer contour area of the projection end being smaller than the outer contour of the mounting end, and combines the circuit lamp board, lens, grating board and heat dissipation system to achieve efficient scanning and detection of large-area products.
Reduces the number of detection line light sources to set, saves equipment space and costs, and improves detection accuracy and efficiency.
Smart Images
Figure CN223139378U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical detection, and particularly relates to a detection line light source. Background Technique
[0002] The detection line light source device is a device that uses the optical principle to detect the properties of an object by analyzing optical phenomena such as reflection, transmission, and scattering of the object. Its principle is to utilize the interaction between matter and light, and obtain the information and characteristics of the object by receiving and processing the transmitted, scattered, and reflected light signals.
[0003] In the application of product surface defect detection, the detection line light source detects the surface defects of the product, such as non-contact scanning detection of defects such as spots, pits, scratches, color differences, and defects on the product surface.
[0004] However, when the existing detection line light source detects a product with a large area, such as a screen, etc., it is necessary to set multiple detection line light sources at different positions to synchronously scan and detect the large-area product. In this way, multiple detection line light sources need to be installed on the quality inspection production line, and since the projection end of the detection line light source is relatively large, it is easy to occupy too much space, which is inconvenient for production implementation. Therefore, it is urgently necessary to make improvements. Summary of the Utility Model
[0005] The main purpose of the utility model is to propose a detection line light source to solve the problem that multiple detection line light sources need to be set up to occupy too much space when detecting a product with a large area in the related technology.
[0006] To achieve the above object, the utility model proposes a detection line light source, which includes:
[0007] A housing, the housing is in a long strip shape and has an inner cavity. The housing has a width direction perpendicular to its length direction. At both ends of the width direction of the housing, a projection end and a mounting end are respectively provided. Both the projection end and the mounting end are open and communicate with the inner cavity. The outer contour area of the projection end along the width direction of the housing is smaller than the outer contour area of the mounting end along the width direction of the housing.
[0008] A circuit lamp board, detachably installed in the inner cavity and adjacent to the mounting end. The lamp beads of the circuit lamp board face the opening of the projection end.
[0009] A lens, detachably installed in the inner cavity and adjacent to the projection end. The lens is located between the opening of the projection end and the circuit lamp board.
[0010] In some embodiments, the housing includes two mounting plates. The two mounting plates are in a long strip shape. The two mounting plates are connected to each other and enclose to form the inner cavity.
[0011] In some embodiments, the housing further includes two side plates which are respectively installed at two ends of the two mounting plates in the length direction to cover the two end ports of the two mounting plates in the length direction.
[0012] In some embodiments, both of the two mounting plates are recessed with first mounting grooves extending along their length directions, the openings of the two first mounting grooves are arranged oppositely, one end of the lens facing away from the projection end is convexly provided with two oppositely arranged bosses, and the two bosses are respectively inserted into the two first mounting grooves.
[0013] In some embodiments, the detection line light source further includes a grating plate which is detachably installed between the two mounting plates and adjacent to the projection end, and the grating plate is located between the opening of the projection end and the lens.
[0014] In some embodiments, both of the two mounting plates are recessed with second mounting grooves extending along their length directions, the openings of the two second mounting grooves are arranged oppositely, the detection line light source further includes a transparent plate, two ends of the grating plate and the transparent plate are respectively inserted into the two second mounting grooves, and the transparent plate is located between the opening of the projection end and the grating plate.
[0015] In some embodiments, the detection line light source further includes a light guiding plate which is installed at the projection end, and the light guiding plate is provided with through holes penetrating its surface.
[0016] In some embodiments, the detection line light source further includes a heat dissipation plate which is installed at the installation end, one end of the heat dissipation plate extends into the inner cavity to be connected with the circuit lamp board, and the other end of the heat dissipation plate is located outside the inner cavity.
[0017] In some embodiments, the detection line light source further includes at least one heat dissipation fan which is installed on a side of the heat dissipation plate facing away from the circuit lamp board.
[0018] The present utility model further provides a light source detection device, the light source detection device includes a detection platform, a controller, at least two rollers and the detection line light source as described above, at least two of the rollers are rotatably installed on the detection platform at intervals, the detection line light source is installed on the detection platform, the projection end extends between two of the rollers, and the circuit lamp board is electrically connected with the controller.
[0019] The beneficial effects of the technical solution of the present utility model are as follows:
[0020] The housing of the detection line light source of the present utility model is in a long strip shape, which can scan and detect products to be detected with a relatively large area, and the projected area of the outer contour of its projection end in the width direction is smaller than that of its installation end. That is, on the detection production line, due to its small volume, the projection end is easier to extend into the detection station on the production line to project and scan the products to be detected. In this way, it is convenient for the detection line light source to perform detection on the detection production line. And because the detection line light source is arranged in a long strip shape, when scanning products with a relatively large area, it is not necessary to set multiple detection line light sources, which can reduce the setting of detection line light sources, thereby saving the space occupied by the equipment and reducing the cost of the equipment. Description of the Drawings
[0021] Figure 1 It is a schematic structural diagram of the detection line light source according to an embodiment of the present utility model;
[0022] Figure 2 It is a schematic structural diagram of the detection line light source from another perspective according to an embodiment of the present utility model;
[0023] Figure 3 It is a cross-sectional view of the detection line light source according to an embodiment of the present utility model;
[0024] Figure 4 It is a schematic structural diagram of the light source detection device according to an embodiment of the present utility model.
[0025] Explanation of the Reference Numerals in the Drawings:
[0026] 100, housing; 110, projection end; 120, installation end; 130, inner cavity; 140, mounting plate; 141, first mounting groove; 142, second mounting groove; 150, side plate; 200, circuit lamp board; 300, lens; 310, boss; 400, grating plate; 500, transparent plate; 600, light guiding plate; 610, through hole; 700, heat dissipation plate; 710, heat dissipation fins; 720, heat dissipation fan; 800, roller; 900, product to be detected; length direction, A; width direction, B. Detailed Embodiment
[0027] Next, the solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model. In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.
[0028] In view of the technical defects existing in the related art, the present utility model provides a detection line light source. Please refer to Figures 1 to 3 , the detection line light source includes: a housing 100, a circuit lamp board 200 and a lens 300. The housing 100 is in a long strip shape and has an inner cavity 130. The housing 100 has a width direction B perpendicular to its length direction A. At both ends of the width direction B of the housing 100, a projection end 110 and a mounting end 120 are respectively provided. The projection end 110 and the mounting end 120 are both open and communicate with the inner cavity 130. The projected outer contour area of the projection end 110 along the width direction B of the housing 100 is smaller than the projected outer contour area of the mounting end 120 along the width direction B of the housing 100; the housing 100 serves as a carrier for the detection line light source to carry each component of the detection line light source. It can be formed by splicing plates, or can be integrally formed by injection molding, or can be formed by folding and welding sheet metal. What specific material the housing 100 is made of is not limited here.
[0029] The housing 100 is arranged in a long strip shape, and the projected outer contour area of the projection end 110 along the width direction B of the housing 100 is smaller than the projected outer contour area of the mounting end 120 along the width direction B of the housing 100. That is, the housing 100 can be arranged in a trapezoidal long strip shape, or can be arranged in a semi-elliptical long strip shape, or can be arranged in a "convex"-shaped long strip shape. No specific restrictions are made here.
[0030] The projection end 110 of the housing 100 is used to project detection light, while the mounting end 120 is used to mount each component of the detection line light source and to mount and fix the detection line light source at the installation part on the detection production line. The circuit lamp board 200 is detachably installed in the inner cavity 130 and adjacent to the mounting end 120. The lamp beads of the circuit lamp board 200 are arranged facing the opening of the projection end 110, so that the circuit lamp board 200 can project the light to the object to be detected through the opening of the projection end 110; in addition, the circuit lamp board 200 can be detachably installed in the inner cavity 130, which is convenient for subsequent debugging, maintenance and replacement of the circuit lamp board 200.
[0031] Further, the lens 300 is detachably installed in the inner cavity 130 and adjacent to the projection end 110. The lens 300 is located between the opening of the projection end 110 and the circuit lamp board 200; the lens 300 is an optical element that can change the propagation direction of light. The lens 300 can focus light to a point. When the detection line light source scans the object to be measured, after the light emitted by the circuit lamp board 200 passes through the lens 300, by adjusting the position and curvature of the lens 300, the focusing position of the light can be accurately controlled, thereby improving the accuracy of measurement and inspection.
[0032] Through the above technical solution, the housing 100 of the detection line light source in the present utility model is strip-shaped, capable of scanning and detecting a relatively large area of the product to be detected, and the projected area of the outer contour of its projection end 110 in the width direction B is smaller than that of its installation end 120. That is, on the detection production line, due to its smaller volume, the projection end 110 is more likely to extend into the detection station on the production line to project and scan the product to be detected. In this way, it is convenient for the detection line light source to perform detection on the detection production line. And because the detection line light source is arranged in a strip shape, when scanning a product with a relatively large area, it is not necessary to set multiple detection line light sources, which can reduce the setting of the detection line light source, thereby saving the space occupied by the equipment and reducing the cost of the equipment.
[0033] Considering that the span area of the object to be measured increases, the length direction A of the housing 100 needs to be set longer. In view of this, in order to facilitate the manufacture of the housing 100, in this embodiment, the housing 100 includes two mounting plates 140. The two mounting plates 140 are arranged in a strip shape, and the two mounting plates 140 are connected to each other and enclose to form an inner cavity 130. The mounting plate 140 can be made of profiles. In this way, the length of the housing 100 can be set longer. The connection method between the two mounting plates 140 can be a detachable connection method such as plugging, clamping, or screwing, or a non-detachable connection method such as welding or bonding. Specific limitations are not made here.
[0034] In some embodiments, the housing 100 further includes two side plates 150. The two side plates 150 are respectively installed at both ends of the two mounting plates 140 in the length direction A to cover the two end ports of the two mounting plates 140 in the length direction A. Similarly, the connection method between the two side plates 150 and the two mounting plates 140 can be a detachable connection method or a non-detachable connection method. In this embodiment, in order to facilitate the user to maintain and replace the components inside the detection line light source in the future, the two side plates 150 are connected to the two mounting plates 140 by screwing.
[0035] Furthermore, both of the two mounting plates 140 are recessed with first mounting grooves 141 extending along their length direction A. The openings of the two first mounting grooves 141 are arranged opposite to each other. One end of the lens 300 facing away from the projection end 110 is convexly provided with two oppositely arranged convex platforms 310. The two convex platforms 310 are respectively inserted into the two first mounting grooves 141. The lens 300 is disassembled and installed in the inner cavity 130 by plugging, which can ensure that the lens 300 is relatively fixed.
[0036] In addition, the detection line light source further includes a grating plate 400. The grating plate 400 is detachably installed between the two mounting plates 140 and adjacent to the projection end 110. The grating plate 400 is located between the opening of the projection end 110 and the lens 300. The grating plate 400 is an optical element that disperses light using the principle of multi-slit diffraction. It can make light both directly incident and diffracted, forming very thin bright fringes, that is, realizing the spectral splitting of light, so that the wavelength of light can be measured more accurately. In the detection line light source, the grating plate 400 separates the light of different wavelengths passing through the lens 300 through its special structure, enabling the detection line light source to measure and analyze light of different wavelengths separately.
[0037] In addition, both of the two mounting plates 140 are recessed with second mounting grooves 142 extending along their length direction A. The openings of the two second mounting grooves 142 are arranged opposite to each other. The detection line light source further includes a transparent plate 500. The two ends of the grating plate 400 and the transparent plate 500 are respectively inserted into the two second mounting grooves 142. The transparent plate 500 is located between the opening of the projection end 110 and the grating plate 400. Similarly, both the transparent plate 500 and the grating plate 400 are fixed in the inner cavity 130 by means of insertion, ensuring that the transparent plate 500 and the grating plate 400 are relatively fixed and do not move.
[0038] In addition, the detection line light source further includes a light guiding plate 600. The light guiding plate 600 is installed at the projection end 110. The light guiding plate 600 is provided with through holes 610 penetrating its surface. This allows light to irradiate out from the through holes 610 of the light guiding plate 600, preventing the light from dispersing after being emitted from the projection end 110.
[0039] Considering that the circuit lamp board 200 will generate heat during operation and is likely to affect the service life of the circuit lamp board 200 after long-term operation. In view of this, in this embodiment, the detection line light source further includes a heat dissipation plate 700. The heat dissipation plate 700 is installed at the installation end 120. One end of the heat dissipation plate 700 extends into the inner cavity 130 to be connected to the circuit lamp board 200, and the other end of the heat dissipation plate 700 is located outside the inner cavity 130. In this way, the heat generated by the circuit lamp board 200 can be dissipated to the outside of the inner cavity 130 through the heat dissipation plate 700, avoiding heat accumulation and affecting the service life.
[0040] In order to further accelerate the heat dissipation of the circuit lamp board 200, in this embodiment, the detection line light source further includes at least one heat dissipation fan 720. The heat dissipation fan 720 is installed on the side of the heat dissipation plate 700 facing away from the circuit lamp board 200.
[0041] In addition, one end of the heat dissipation plate 700 located outside the inner cavity 130 is convexly provided with a plurality of heat dissipation fins 710. With this setting, adding the heat dissipation fins 710 can increase the heat dissipation area, and adding multiple heat dissipation fans 720 can accelerate the ventilation and heat dissipation of the heat dissipation plate 700.
[0042] The present utility model further provides a light source detection device. Please refer to Figure 4 , the light source detection device includes a detection platform (not shown), a controller (not shown), at least two rollers 800 and a detection line light source. The at least two rollers 800 are rotatably installed on the detection platform at intervals. The detection line light source is installed on the detection platform, and the projection end 110 extends between two of the rollers 800. The circuit lamp board 200 is electrically connected to the controller.
[0043] With such a setting, the product 900 to be detected can be slidably conveyed on at least two rollers 800. Since the thickness of the projection end 110 of the detection line light source is small, it can extend between two of the rollers 800. When the product 900 to be detected is conveyed, the detection line light source can scan and detect the product 900 to be detected. When it is detected that there is a defect on the upper surface of the product 900 to be detected, the circuit lamp board 200 communicates and feeds back to the controller, so that the controller makes corresponding feedbacks, such as prompting the staff through light or sound that there is a defect in the product 900 to be detected.
[0044] It should be noted that the controller can be an electrical component such as a single-chip microcomputer, a PWM controller, a PLC controller, a microprocessor, etc. that can receive external signals and output execution command signals, and no specific limitation is made here.
[0045] In addition, for the specific structure of the detection line light source, refer to the above-mentioned embodiments. Since the light source detection device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated one by one here.
[0046] The above are only partial or preferred embodiments of the present utility model. Whether in terms of text or drawings, the scope of protection of the present utility model cannot be limited thereby. All equivalent structural transformations made by using the content of the specification and drawings of the present utility model under the overall concept of the present utility model, or direct / indirect applications in other related technical fields are included in the scope of protection of the present utility model.
Claims
1. A detection line light source, characterized in that, The detection line light source includes: A housing (100), the housing (100) is strip-shaped and has an inner cavity (130). The housing (100) has a width direction perpendicular to its length direction. At both ends of the width direction of the housing (100), a projection end (110) and a mounting end (120) are respectively provided. The projection end (110) and the mounting end (120) are both open and communicate with the inner cavity (130). The outer contour area of the projection end (110) projected along the width direction of the housing (100) is smaller than the outer contour area of the mounting end (120) projected along the width direction of the housing (100); A circuit lamp board (200), detachably installed in the inner cavity (130) and adjacent to the mounting end (120). The lamp beads of the circuit lamp board (200) are arranged facing the opening of the projection end (110); A lens (300), detachably installed in the inner cavity (130) and adjacent to the projection end (110). The lens (300) is located between the opening of the projection end (110) and the circuit lamp board (200).
2. The detection line light source according to claim 1, wherein, The housing (100) includes two mounting plates (140). The two mounting plates (140) are strip-shaped. The two mounting plates (140) are connected to each other and enclose to form the inner cavity (130).
3. The detection line light source according to claim 2, characterized in that, The housing (100) further includes two side plates (150). The two side plates (150) are respectively installed at both ends of the length direction of the two mounting plates (140) to cover the two end ports of the length direction of the two mounting plates (140).
4. The detection line light source according to claim 2, characterized in that, Both of the two mounting plates (140) are recessed with first mounting grooves (141) extending along their length directions. The openings of the two first mounting grooves (141) are arranged opposite to each other. One end of the lens (300) facing away from the projection end (110) is convex with two oppositely arranged bosses (310). The two bosses (310) are respectively inserted into the two first mounting grooves (141).
5. The detection line light source according to claim 2, wherein The detection line light source further includes a grating plate (400). The grating plate (400) is detachably installed between the two mounting plates (140) and adjacent to the projection end (110). The grating plate (400) is located between the opening of the projection end (110) and the lens (300).
6. The detection line light source according to claim 5, characterized in that, Both of the two mounting plates (140) are recessed with second mounting grooves (142) extending along their length directions. The openings of the two second mounting grooves (142) are arranged opposite to each other. The detection line light source further includes a transparent plate (500). The two ends of the grating plate (400) and the transparent plate (500) are respectively inserted into the two second mounting grooves (142). The transparent plate (500) is located between the opening of the projection end (110) and the grating plate (400).
7. The detection line light source according to claim 1, characterized in that, The detection line light source further includes a light guiding plate (600). The light guiding plate (600) is installed at the projection end (110). The light guiding plate (600) is provided with through holes (610) penetrating its surface.
8. The detection line light source according to claim 1, wherein, The detection line light source further includes a heat dissipation plate (700), the heat dissipation plate (700) is installed on the installation end (120), one end of the heat dissipation plate (700) extends into the inner cavity (130) and is connected to the circuit lamp board (200), and the other end of the heat dissipation plate (700) is located outside the inner cavity (130).
9. The detection line light source according to claim 8, characterized in that, The detection line light source further includes at least one heat dissipation fan (720), and the heat dissipation fan (720) is installed on a side of the heat dissipation plate (700) facing away from the circuit lamp board (200).
10. A light source detection device, characterized in that, The light source detection device includes a detection platform, a controller, at least two rollers (800), and a detection line light source according to any one of claims 1 to 9. At least two of the rollers (800) are rotatably installed on the detection platform at intervals. The detection line light source is installed on the detection platform, and the projection end (110) extends between two of the rollers (800). The circuit lamp board (200) is electrically connected to the controller.