Stripe light source device and visual inspection device

Abstract

The utility model relates to the technical field of light source structures, and discloses a stripe light source device and a visual inspection device.The stripe light source device comprises isolation plates, total reflection plates and a linear light assembly, and the tail end of each isolation plate is connected with the total reflection plate; the multiple isolation plates are arranged at intervals, every two adjacent isolation plates are parallel to each other and form a light emitting channel, a linear light assembly used for emitting linear light to the corresponding total reflection plate is installed in each light emitting channel, and the light emitting direction of the linear light assemblies is parallel to the isolation plates; in the arrangement direction, the length of the isolation plates is gradually increased, the total reflection plates are obliquely arranged relative to the isolation plates, and every two adjacent total reflection plates are parallel to each other. According to the stripe light source device and the visual inspection device, stripe light spots can be formed without arranging stripe grids, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source structure technical field especially, relates to a kind of stripe light source device and visual inspection device. BACKGROUND

[0002] Visual inspection is to replace human eye to do measurement and judgment by machine, to determine whether the workpiece surface exists defect. Among them, light source is the important component of visual inspection, according to shape, light source includes bar light source, stripe light source, point light source etc.

[0003] Current stripe light source, generally by stripe grid constitutes the shape required, direct light source is formed stripe light spot on workpiece surface after passing through stripe grid, to facilitate the surface defect of workpiece detection, but stripe grid machining precision is higher to lead to higher procurement cost, and the required installation height is higher.

[0004] Therefore, it is necessary to design a stripe light source device and visual inspection device, which can form a stripe light spot without setting a stripe grid, so as to reduce production cost,

[0005] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. INVENTION CONTENTS

[0006] The utility model provides a stripe light source device and visual inspection device, can form stripe light spot without setting stripe grid, be favorable to reduce production cost,

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A stripe light source device, comprising a spacer plate, a total reflection plate and a linear light assembly, the tail end of each spacer plate is connected with a total reflection plate;

[0009] A plurality of spacer plates are arranged at intervals, and two adjacent spacer plates are parallel to each other and form a light outlet channel. Each light outlet channel is provided with a linear light assembly for emitting linear light to the corresponding total reflection plate. The light outlet direction of the linear light assembly is parallel to the spacer plate.

[0010] Along the arrangement direction from bottom to top, the length of the spacer plate gradually increases, and the total reflection plate is inclined to the spacer plate, and two adjacent total reflection plates are parallel to each other.

[0011] Optionally, the linear light assembly comprises a bar-shaped light plate and a light collecting rod mounted on the light outlet side of the bar-shaped light plate.

[0012] The bar-shaped light plate is parallel to the spacer plate.

[0013] Optionally, the stripe light source device further includes a heat sink, on which several of the isolation plates are mounted;

[0014] The strip light panel is parallel to the isolation plate, and the focusing rod is parallel to the isolation plate.

[0015] Optionally, the stripe light source device also includes a housing plate disposed opposite to the heat sink;

[0016] The isolation plate and the total reflector plate are both installed between the heat sink and the outer shell plate.

[0017] Optionally, the total reflector is tilted at 45° relative to the isolation plate.

[0018] Optionally, a light-emitting gap is formed between two adjacent total reflective plates.

[0019] Optionally, a light-absorbing layer is coated on both opposite sides of the isolation plate.

[0020] Optionally, the isolation plate can be detachably inserted into the radiator, which is connected to an inlet connector and an outlet connector.

[0021] Optionally, the total reflector is rotatably connected to the isolation plate, and the tilt angle of the total reflector is adjustable.

[0022] A visual inspection device includes a stripe light source device as described in any of the preceding claims.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The striped light source device and visual inspection device provided by this utility model form a light emission channel through an isolation plate, and a total reflection plate is inclinedly arranged at the tail end of the isolation plate. The striped light spots emitted by the striped light source are reflected by the total reflection plate and projected onto the surface of the workpiece. The striped light spots of multiple striped light sources form striped light spots on the surface of the workpiece, thereby meeting the inspection needs of the workpiece. In this embodiment, the structure is optimized, and striped light spots can be formed without the need for a striped grid. The overall structure of the striped light source device is simpler and easier to install, which helps to reduce production costs.

[0025] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the installation structure of the striped light source device provided in this embodiment of the utility model.

[0028] Reference numerals: 1. Isolation plate; 101. Light emission channel; 102. Light emission gap; 2. Total reflection plate; 3. Linear light component; 31. Strip light panel; 32. Focusing rod; 4. Heat sink; 5. Outer shell plate. Detailed Implementation

[0029] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0030] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0031] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0032] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0033] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0034] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0035] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0036] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0038] Example 1

[0039] In view of the aforementioned deficiencies in existing stripe light source devices, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a technology that could overcome the deficiencies in the existing technology and make the stripe light source device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0040] Please refer to Figure 1 This utility model provides a striped light source device, including an isolation plate 1, a total reflection plate 2, and a linear light component 3, with a total reflection plate 2 connected to the tail end of each isolation plate 1.

[0041] Several isolation plates 1 are arranged at intervals, with adjacent isolation plates 1 parallel to each other and forming a light emission channel 101. Each light emission channel 101 is equipped with a linear light component 3 for emitting linear light to the corresponding total reflection plate 2. The light emission direction of the linear light component 3 is parallel to the isolation plate 1. Along the arrangement direction from bottom to top, the length of the isolation plates 1 gradually increases. The total reflection plates 2 are inclined relative to the isolation plates 1, and adjacent total reflection plates 2 are parallel to each other. The arrangement direction is from bottom to top, that is, the bottom isolation plate 1 is the shortest and the top isolation plate 1 is the longest. Preferably, the extension direction of the isolation plates 1 is perpendicular to the arrangement direction.

[0042] like Figure 1 As shown, multiple linear light components 3 are arranged from top to bottom. Each linear light component 3 emits a stripe of light horizontally to the right. After being reflected by the total reflection plate 2, the stripe of light is emitted vertically downward, thus forming a striped light spot on the surface of the workpiece, which facilitates the detection of whether there are defects on the surface of the workpiece.

[0043] In this embodiment, the striped light source device is optimized, eliminating the need for a striped grid. Compared to the existing structure of parallel light sources passing through a striped grid, the striped light source device can be set lower, reducing its size and production cost. The striped light source device in this embodiment has a simpler overall structure and is easier to install, significantly contributing to lower production costs.

[0044] Optionally, the linear light assembly 3 includes a strip light panel 31 and a focusing rod 32 mounted on the light-emitting side of the strip light panel 31; the strip light panel 31 is parallel to the isolation plate 1. The light emitted from the strip light panel 31, under the focusing effect of the focusing rod 32, forms a linear light spot that is horizontally directed to the right towards the total reflection plate 2. It should be noted that the side of the total reflection plate 2 closest to the corresponding light-emitting channel 101 is a total reflection surface.

[0045] Optionally, the strip light source device also includes a heat sink 4, on which several isolation plates 1 are mounted; the strip light panel 31 is parallel to the isolation plates 1, and the focusing rod 32 is parallel to the isolation plates 1. The focusing rod 32 is parallel to the isolation plates 1, and the strip light panel 31 is parallel to the isolation plates 1, so as to ensure that the light emitted from the strip light panel 31 is parallel to the isolation plates 1.

[0046] Optionally, the striped light source device also includes a housing plate 5 disposed opposite to the heat sink 4; the isolation plate 1 and the total reflection plate 2 are both installed between the heat sink 4 and the housing plate 5. The housing plate 5 is used to protect the total reflection plate 2 and prevent the total reflection plate 2 from being bent by external impact, thereby preventing the total reflection plate 2 from bending.

[0047] Optionally, the total reflector 2 is tilted at 45° relative to the isolation plate 1.

[0048] Optionally, a light-emitting gap 102 is formed between two adjacent total reflection plates 2. It should be noted that the tilt extension length of the total reflection plate 2 can be adjusted according to the actual light spot requirements, thereby changing the effect of the light spot. Generally, by reasonably adjusting the tilt length of the total reflection plate 2, the back of the total reflection plate 2 can block some stray light, thereby improving the forming effect of the striped light spot.

[0049] Optionally, a light-absorbing layer is coated on both opposite sides of the isolation plate 1. The light-absorbing layer can effectively absorb stray light and improve the accuracy of light output.

[0050] Optionally, the isolation plate 1 can be detachably inserted into the radiator 4, which is connected to an inlet connector 41 and an outlet connector 42.

[0051] Optionally, the total reflection plate 2 and the isolation plate 1 are rotatably connected, and the tilt angle of the total reflection plate 2 is adjustable, so that the linear light spot can be tilted and projected onto the surface of the workpiece, thereby improving the applicability of the stripe light source device.

[0052] Example 2

[0053] This embodiment discloses a visual inspection device, including a stripe light source device as described in Embodiment 1.

[0054] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A striped light source device, characterized in that, It includes an isolation plate (1), a total reflection plate (2) and a linear light component (3), with the tail end of each isolation plate (1) connected to a total reflection plate (2); Several isolation plates (1) are arranged at intervals, and two adjacent isolation plates (1) are parallel to each other and form a light emission channel (101). Each light emission channel (101) is equipped with a linear light component (3) for emitting linear light to the corresponding total reflection plate (2). The light emission direction of the linear light component (3) is parallel to the isolation plate (1). Along the arrangement direction from bottom to top, the length of the isolation plate (1) gradually increases, the total reflective plate (2) is inclined relative to the isolation plate (1), and two adjacent total reflective plates (2) are parallel to each other.

2. The stripe light source device according to claim 1, characterized in that, The linear light assembly (3) includes a strip light panel (31) and a focusing rod (32) installed on the light-emitting side of the strip light panel (31); The strip light panel (31) is parallel to the isolation plate (1).

3. The stripe light source device according to claim 2, characterized in that, It also includes a radiator (4), and several of the isolation plates (1) are installed on the radiator (4); The strip light panel (31) is parallel to the isolation plate (1), and the focusing rod (32) is parallel to the isolation plate (1).

4. The stripe light source device according to claim 3, characterized in that, It also includes a housing plate (5) disposed opposite to the radiator (4); The isolation plate (1) and the total reflection plate (2) are both installed between the heat sink (4) and the outer shell plate (5).

5. The stripe light source device according to claim 1, characterized in that, The total reflector (2) is tilted at 45° relative to the isolation plate (1).

6. The stripe light source device according to claim 1, characterized in that, A light-emitting gap (102) is formed between two adjacent total reflective plates (2).

7. The stripe light source device according to claim 1, characterized in that, The isolation plate (1) is coated with a light-absorbing layer on both opposite sides.

8. The stripe light source device according to claim 3, characterized in that, The isolation plate (1) is detachably inserted into the radiator (4), which is connected to an inlet connector (41) and an outlet connector (42).

9. The stripe light source device according to claim 3, characterized in that, The total reflector (2) is rotatably connected to the isolation plate (1), and the tilt angle of the total reflector (2) is adjustable.

10. A visual inspection device, characterized in that, It includes a striped light source device as described in any one of claims 1 to 9.

Images