Combined light source device for vision inspection of braiding

Abstract

The utility model discloses a combination light source device for bra vision detection relates in detection light source technical field. The combination light source device for bra vision detection includes the mounting seat and the light emitting component, the inside wall surface of diffuser block is the annular inclined plane of inclined downward setting, and the cross section of diffuser block gradually reduces along the vertical downward direction, the bottom end surface of first light emitting spare is located diffuser block top end surface above in vertical direction, the top end surface of second light emitting spare is located diffuser block bottom end surface below in vertical direction, diffuser block can emit light from the direction of inclined downward from the circumference side through annular inclined plane, to form the uniform circular diffused light field, can provide stable uniform illumination, make second light emitting spare can block the light that emits from diffuser block bottom end vertical downward, to reduce the influence that the intensity of the light that emits to second light emitting spare causes, thereby make this combination light source device for bra vision detection can emit the polarized light of intensity more stable.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a combined light source device for visual inspection of tape and cord. Background Technology

[0002] In the automated packaging and mounting process of electronic components, visual inspection of tape and reel packaging is usually required. This involves detecting and identifying the polarity, presence, printing errors, and appearance defects of the components. Therefore, visual inspection of tape and reel packaging is a key process to ensure product quality. However, since the surface of tape and reel is usually made of smooth plastic or coated material, it has strong specular reflection characteristics. Illumination with traditional light sources will produce large-area overexposure glare, affecting the inspection effect. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a combined light source device for visual inspection of tape and reel, which can provide stable and uniform illumination and emit polarized light with relatively stable intensity, thus ensuring effective elimination of reflection.

[0004] To achieve the above objectives, this utility model provides a combined light source device for visual inspection of tape and reel. The combined light source device for visual inspection of tape and reel includes a mounting base and a light-emitting component; the mounting base has a receiving cavity and a light-emitting port; the light-emitting port is located at the bottom end of the mounting base and communicates with the receiving cavity; the light-emitting component is disposed within the receiving cavity; the light-emitting component includes a first light-emitting element, a diffuser block, a second light-emitting element, and a polarizing plate arranged sequentially in a vertically downward direction; the first light-emitting element, the diffuser block, the second light-emitting element, and the polarizing plate are all annular. The inner wall of the diffuser block is an inclined annular surface facing downwards, and the cross-section of the diffuser block gradually decreases in the vertically downward direction; the bottom end of the first light-emitting element is the first light-emitting surface, and the bottom end of the second light-emitting element is the second light-emitting surface; the bottom end of the first light-emitting element abuts against the top end of the diffuser block, and the bottom end of the first light-emitting element is located above the top end of the diffuser block in the vertical direction; the top end of the second light-emitting element is located below the bottom end of the diffuser block in the vertical direction; the polarizing plate is located below the second light-emitting element in the vertical direction.

[0005] Furthermore, the light-emitting component also includes a control component; the control component is connected to the first light-emitting component and the second light-emitting component; the control component can control the first light-emitting component and the second light-emitting component to turn on and off independently, and can control the brightness of the light emitted by the first light-emitting component and the second light-emitting component.

[0006] Furthermore, the first light-emitting element includes a first circuit board and a first light-emitting structure; both the first circuit board and the first light-emitting structure are annular; the first light-emitting structure is disposed at the bottom end of the first circuit board; the bottom end surface of the first light-emitting structure is the first light-emitting surface of the first light-emitting element.

[0007] Furthermore, the second light-emitting element includes a second circuit board and a second light-emitting structure; both the second circuit board and the second light-emitting structure are annular; the second light-emitting structure is disposed at the bottom end of the second circuit board; the bottom end surface of the second light-emitting structure is the second light-emitting surface of the second light-emitting element.

[0008] Furthermore, the cross-sectional area of ​​the polarizing plate is larger than the cross-sectional area of ​​the first light-emitting structure.

[0009] Furthermore, the cross-sectional area of ​​the polarizing plate is larger than the cross-sectional area of ​​the second light-emitting structure, and also larger than the cross-sectional area of ​​the diffuser block.

[0010] Furthermore, the inner wall of the receiving cavity is provided with a limiting boss; the limiting boss is oriented upwards, and the bottom edge of the second circuit board abuts against the top edge of the limiting boss.

[0011] Furthermore, the mounting base includes a base and a perimeter; the perimeter is vertically oriented through the center, and the light outlet is located at the bottom end of the perimeter; the base is located at the top end of the perimeter, and at least part of the base is located within the perimeter and abuts against the top end of the first circuit board, and the base and the perimeter define the receiving cavity.

[0012] Furthermore, the base has a vertically extending channel in the middle; the bottom of the base has an annular boss that abuts against the top of the first circuit board.

[0013] Furthermore, the first circuit board, the diffuser block, and the second circuit board all abut against the inner wall of the receiving cavity; a limiting groove is provided on the bottom surface of the periphery, and the polarizing plate is disposed in the limiting groove.

[0014] Compared with the prior art, this utility model has the following advantages: Since the emitting surface of the first light-emitting element abuts against the top surface of the diffuser block, all the light emitted by the first light-emitting element can enter the diffuser block, improving the light energy utilization rate. The diffuser block is annular, and the inner wall surface of the inner side of the middle part of the diffuser block is an annular inclined surface facing downward, so that the diffuser block can emit light from the periphery in a downward direction through the annular inclined surface to form a uniform circular diffuse light field, which can provide stable and uniform illumination and ensure the detection effect. The bottom surface of the second light-emitting element is the second emitting surface of the second light-emitting element. The light emitted by the second light-emitting element can pass through the polarizing plate and be emitted outward. Since the top surface of the second light-emitting element is located below the bottom surface of the diffuser block in the vertical direction, the second light-emitting element can block the light emitted vertically downward from the bottom of the diffuser block, thereby reducing the impact on the intensity of the light emitted by the second light-emitting element. Thus, the combined light source device for tape visual inspection can emit polarized light with relatively stable intensity, which can effectively eliminate the reflection effect and ensure the detection effect. Attached Figure Description

[0015] To more clearly illustrate the technology 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the combined light source device for visual inspection of tape and cord according to the present invention;

[0017] Figure 2 This is a structural schematic diagram of the combined light source device for visual inspection of tape and cord according to this utility model from another perspective.

[0018] Figure 3 This is a cross-sectional view of the combined light source device for visual inspection of tape and cord according to the present invention;

[0019] Figure 4 This is a cross-sectional view of the mounting base of the combined light source device for visual inspection of tape and cord according to this utility model;

[0020] Figure 5 This is a schematic diagram of the diffuser block of the combined light source device for visual inspection of tape and cord.

[0021] Reference numerals: Mounting base 100; Receiving cavity 101; Light outlet 102; Limiting boss 103; Base 110; Channel 111; Annular boss 112; Peripheral 120; Limiting groove 121; First light-emitting element 210; First circuit board 211; First light-emitting structure 212; Diffuser block 220; Annular inclined surface 221; Second light-emitting element 230; Second circuit board 231; Second light-emitting structure 232; Polarizing plate 240. Detailed Implementation

[0022] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0025] Please see Figures 1 to 5This utility model provides a combined light source device for visual inspection of tape and cord. The combined light source device for visual inspection of tape and cord includes a mounting base 100 and a light-emitting component. The mounting base 100 is provided with a receiving cavity 101 and a light-emitting port 102. The light-emitting port 102 is located at the bottom end of the mounting base 100 and communicates with the receiving cavity 101. The light-emitting component is disposed within the receiving cavity 101. The light-emitting component includes a first light-emitting element 210, a diffuser block 220, a second light-emitting element 230, and a polarizing plate 240 arranged sequentially in a vertically downward direction. All 40 are annular; the inner wall of the diffuser block 220 is an inclined annular surface 221 facing downwards, and the cross-section of the diffuser block 220 gradually decreases in the vertically downward direction; the bottom end surface of the first light-emitting element 210 is the first light-emitting surface, and the bottom end surface of the second light-emitting element 230 is the second light-emitting surface; the bottom end of the first light-emitting element 210 abuts against the top end of the diffuser block 220, and the bottom end surface of the first light-emitting element 210 is located above the top end surface of the diffuser block 220 in the vertical direction; the top end surface of the second light-emitting element 230 is located below the bottom end surface of the diffuser block 220 in the vertical direction; the polarizing plate 240 is located below the second light-emitting element 230 in the vertical direction.

[0026] Because the emitting surface of the first light-emitting element 210 abuts against the top surface of the diffuser block 220, all the light emitted by the first light-emitting element 210 can enter the diffuser block 220, improving the light energy utilization rate. The diffuser block 220 is annular, and the inner wall surface of the inner side of the middle part of the diffuser block 220 is an annular inclined surface 221 facing downward, so that the diffuser block 220 can emit light from the circumference in a downward direction through the annular inclined surface 221 to form a uniform circular diffuse light field, which can provide stable and uniform illumination and ensure the detection effect; the bottom surface of the second light-emitting element 230 is the second light-emitting element. The second light-emitting surface of the light element 230 allows the light emitted by the second light-emitting element 230 to pass through the polarizing plate 240 and be emitted outward. Since the top surface of the second light-emitting element 230 is located below the bottom surface of the diffuser block 220 in the vertical direction, the second light-emitting element 230 can block the light emitted vertically downward from the bottom of the diffuser block 220, thereby reducing the impact on the intensity of the light emitted by the second light-emitting element 230. As a result, the combined light source device for tape visual inspection can emit polarized light with relatively stable intensity, which can effectively eliminate the reflection effect and ensure the inspection effect.

[0027] Specifically, the polarizing plate 240 is annular, and the diffused light emitted by the diffuser block 220 through the annular inclined surface 221 can pass through the opening structure in the middle of the polarizing plate 240 and be emitted obliquely downward.

[0028] In some embodiments of this utility model, the light-emitting component further includes a control component; the control component is connected to the first light-emitting component 210 and the second light-emitting component 230, and the control component can control the first light-emitting component 210 and the second light-emitting component 230 to turn on and off independently, and can control the brightness of the light emitted by the first light-emitting component 210 and the second light-emitting component 230.

[0029] Based on the architecture of the first light-emitting element 210 and the second light-emitting element 230 being independently controllable, this utility model realizes digital control of lighting effects. Users can independently control the opening and closing of the first light-emitting element 210 and the second light-emitting element 230 through the control unit, and independently adjust the brightness combination of the first light-emitting element 210 and the second light-emitting element 230. It can quickly adapt to tapes with different reflectivity, different colors and different brands without physical adjustment, realizing "one light for multiple uses", which greatly improves the flexibility and line change efficiency of the production line.

[0030] Specifically, the control unit can control the power output of the first light-emitting element 210 and the second light-emitting element 230, so as to control the intensity of the light emitted by the first light-emitting element 210 and the second light-emitting element 230, thereby controlling the intensity of the diffused light and polarized light emitted by the combined light source device for tape visual inspection, so as to adapt to different tapes.

[0031] Reference Figure 3 In some embodiments of this utility model, the first light-emitting element 210 includes a first circuit board 211 and a first light-emitting structure 212; both the first circuit board 211 and the first light-emitting structure 212 are annular; the first light-emitting structure 212 is disposed at the bottom end of the first circuit board 211; the bottom end surface of the first light-emitting structure 212 is the first light-emitting surface of the first light-emitting element 210.

[0032] The first light-emitting structure 212 is disposed at the bottom end of the first circuit board 211 and is electrically connected to the first circuit board 211. The cross-section of the first light-emitting structure 212 is smaller than the cross-section of the first circuit board 211 so that it can block the light emitted by the first light-emitting element 210 through the first circuit board 211 and reduce the degree of light scattering.

[0033] The first light-emitting structure 212 can be an LED light-emitting structure.

[0034] Reference Figure 3 In some embodiments of this utility model, the second light-emitting element 230 includes a second circuit board 231 and a second light-emitting structure 232; both the second circuit board 231 and the second light-emitting structure 232 are annular; the second light-emitting structure 232 is disposed at the bottom end of the second circuit board 231; the bottom end surface of the second light-emitting structure 232 is the second light-emitting surface of the second light-emitting element 230.

[0035] The second light-emitting structure 232 is disposed at the bottom end of the second circuit board 231 and is electrically connected to the second circuit board 231. The cross-section of the second light-emitting structure 232 is smaller than the cross-section of the second circuit board 231 so that it can block the light emitted by the second light-emitting element 230 through the second circuit board 231 and reduce the degree of light scattering.

[0036] The second light-emitting structure 232 can be an LED light-emitting structure.

[0037] Reference Figure 3 In some embodiments of this utility model, the cross-sectional size of the polarizing plate 240 is larger than the cross-sectional size of the first light-emitting structure 212, so that the light emitted by the first light-emitting structure 212 can be stably transmitted through the polarizing plate 240, thus ensuring the generation of polarized light.

[0038] Reference Figure 3 In some embodiments of this utility model, the cross-sectional size of the polarizing plate 240 is larger than the cross-sectional size of the second light-emitting structure 232, and larger than the cross-sectional size of the diffuser block 220.

[0039] Specifically, the cross-section of the polarizing plate 240 is located below the second light-emitting structure 232 and the diffuser block 220 in the vertical direction, so that the vertically downward light emitted by the second light-emitting structure 232 can pass through the polarizing plate 240, thereby reducing the influence of diffused light on polarized light.

[0040] Reference Figure 3 and Figure 4 In some embodiments of this utility model, the inner wall of the receiving cavity 101 is provided with a limiting boss 103, the limiting boss 103 is arranged facing upward, and the bottom edge of the second circuit board 231 abuts against the top surface of the limiting boss 103.

[0041] By setting the limiting boss 103, the second circuit board 231 can be supported. Since the first light-emitting element 210 and the diffuser block 220 are both located below the second circuit board 231, the top of the diffuser block 220 abuts against the top of the second circuit board 231, so that the second circuit board 231 can support the diffuser block 220 and the first light-emitting element 210.

[0042] Reference Figures 3 to 5 In some embodiments of this utility model, the mounting base 100 includes a base 110 and a periphery 120; the periphery 120 is vertically through the middle, and the light outlet 102 is located at the bottom end of the periphery 120; the base 110 is located at the top end of the periphery 120, and the base 110 is at least partially located within the periphery 120 and abuts against the top end of the first circuit board 211, and the base 110 and the periphery 120 define a receiving cavity 101.

[0043] The light-emitting component is inserted into the perimeter 120 from the top, and then the base 110 is placed on the top of the perimeter 120, so that the base 110 extends at least partially into the perimeter 120, thereby sealing the top of the perimeter 120. A light-emitting port 102 is provided at the bottom of the perimeter 120, and the light emitted by the light-emitting component can be emitted outward from the light-emitting port 102.

[0044] Reference Figure 1 , Figure 3 and Figure 4 In some embodiments of this utility model, a channel 111 is provided in the middle of the base 110, which is arranged vertically; an annular boss 112 is provided at the bottom end of the base 110, and the annular boss 112 abuts against the top end of the first circuit board 211.

[0045] The channel 111 is connected to the receiving cavity 101, which allows the camera detection module to be placed above the base 110, so that the camera detection module can detect the workpiece to be inspected located below the circumference 120 through the channel 111.

[0046] The base 110 abuts against the top of the first circuit board 211 via the annular boss 112, thereby defining the position of the first circuit board 211. Specifically, the first light-emitting structure 212 of the first light-emitting element 210 abuts against the top of the diffuser block 220, the bottom of the diffuser block 220 abuts against the top surface of the second circuit board 231, and the edge of the bottom surface of the second circuit board 231 abuts against the limiting boss 103. This allows the base 110 and the limiting boss 103 to define the position of the component, thereby reducing the possibility of the light-emitting component accidentally shaking within the receiving cavity 101 and improving the stability of the light-emitting component's operation.

[0047] Reference Figure 3 In some embodiments of this utility model, the first circuit board 211, the diffuser block 220, and the second circuit board 231 all abut against the inner wall of the receiving cavity 101, so as to reduce the possibility of the light-emitting component accidentally shaking in the receiving cavity 101 and improve the stability of the light-emitting component's operation.

[0048] A limiting groove 121 is provided at the bottom of the perimeter 120, and the polarizing plate 240 is disposed in the limiting groove 121.

[0049] By setting the limiting groove 121, the position of the polarizing plate 240 can be limited, thereby reducing the possibility of the polarizing plate 240 accidentally shaking within the limiting groove 121 and improving the stability of the polarizing plate 240 during operation.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combined light source device for visual inspection of tape and reel, characterized in that, include: The mounting base is provided with a receiving cavity and a light-emitting port; the light-emitting port is located at the bottom end of the mounting base and is connected to the receiving cavity. A light-emitting component is disposed within the receiving cavity; the light-emitting component includes a first light-emitting element, a diffuser block, a second light-emitting element, and a polarizing plate arranged sequentially in a vertically downward direction; the first light-emitting element, the diffuser block, the second light-emitting element, and the polarizing plate are all annular; the inner wall of the diffuser block is an inclined annular surface facing downward, and the cross-section of the diffuser block gradually decreases in the vertically downward direction; the bottom end surface of the first light-emitting element is a first light-emitting surface, and the bottom end surface of the second light-emitting element is a second light-emitting surface; the bottom end of the first light-emitting element abuts against the top end of the diffuser block, and the bottom end surface of the first light-emitting element is located above the top end surface of the diffuser block in the vertical direction; the top end surface of the second light-emitting element is located below the bottom end surface of the diffuser block in the vertical direction; the polarizing plate is located below the second light-emitting element in the vertical direction.

2. The combined light source device for visual inspection of tape and ribbon according to claim 1, characterized in that, The light-emitting component also includes a control component; the control component is connected to the first light-emitting component and the second light-emitting component; the control component can control the first light-emitting component and the second light-emitting component to turn on and off independently, and can control the brightness of the light emitted by the first light-emitting component and the second light-emitting component.

3. The combined light source device for visual inspection of tape and cord as described in claim 1, characterized in that, The first light-emitting element includes a first circuit board and a first light-emitting structure; both the first circuit board and the first light-emitting structure are annular; the first light-emitting structure is disposed at the bottom end of the first circuit board; the bottom end surface of the first light-emitting structure is the first light-emitting surface of the first light-emitting element.

4. The combined light source device for visual inspection of tape and cord as described in claim 3, characterized in that, The second light-emitting element includes a second circuit board and a second light-emitting structure; both the second circuit board and the second light-emitting structure are annular; the second light-emitting structure is disposed at the bottom end of the second circuit board; the bottom end surface of the second light-emitting structure is the second light-emitting surface of the second light-emitting element.

5. The combined light source device for visual inspection of tape and cord as described in claim 3, characterized in that, The cross-sectional area of ​​the polarizing plate is larger than the cross-sectional area of ​​the first light-emitting structure.

6. The combined light source device for visual inspection of tape and cord according to claim 4, characterized in that, The cross-sectional area of ​​the polarizing plate is larger than the cross-sectional area of ​​the second light-emitting structure, and also larger than the cross-sectional area of ​​the diffuser block.

7. The combined light source device for visual inspection of tape and cord according to claim 4, characterized in that, The inner wall of the receiving cavity is provided with a limiting boss; the limiting boss is oriented upwards, and the bottom edge of the second circuit board abuts against the top edge of the limiting boss.

8. The combined light source device for visual inspection of tape and cord according to claim 4, characterized in that, The mounting base includes a base and a perimeter; the perimeter is vertically oriented through the center, and the light outlet is located at the bottom end of the perimeter; the base is located at the top end of the perimeter, and at least part of the base is located within the perimeter and abuts against the top end of the first circuit board, and the base and the perimeter define the receiving cavity.

9. The combined light source device for visual inspection of tape and cord as described in claim 8, characterized in that, The base has a vertically extending channel in the middle; the bottom of the base has an annular boss that abuts against the top of the first circuit board.

10. The combined light source device for tape and cord visual inspection according to claim 8, characterized in that, The first circuit board, the diffuser block, and the second circuit board all abut against the inner wall of the receiving cavity; a limiting groove is provided on the bottom surface of the periphery, and the polarizing plate is disposed in the limiting groove.

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