Light box light source

Abstract

The utility model relates to the technical field of automatic equipment vision lighting, disclose light box light source, including light box shell subassembly, the light emitting component is set in light box shell subassembly, light source diffusion subassembly, light source diffusion subassembly sets up in light box shell subassembly, and light source diffusion subassembly diffuses the light of light emitting component emission, the sheltering subassembly, the sheltering subassembly sets up at the bottom of light box shell subassembly, and the bottom PCB is as the core component of bottom light source, and the even distribution of the infrared light LED lamp pearl of collocation can ensure the consistency of bottom light output, provides sufficient and even infrared illumination for object bottom detection, arc PCB sets up two, is symmetrically installed in the inside of light box shell subassembly, through the even distribution of arc structure design and lamp pearl, ensure that the visual light source all around can output even infrared light, realize the comprehensive illumination to object side, satisfy side defect detection demand.

Description

Technical Field

[0001] This utility model relates to the field of visual lighting technology for automated equipment, specifically to light box light sources. Background Technology

[0002] In the field of automated equipment visual inspection, especially in the appearance inspection of reflective objects such as food packaging, dedicated visual light sources are needed to provide a stable and uniform lighting environment to accurately identify defects such as scratches and abrasions on the object's surface. However, existing visual light sources generally suffer from complex structures and insufficient light intensity, which not only makes it difficult to meet the required inspection accuracy but also increases the production costs of enterprises due to their high cost. This hinders their large-scale application in automated inspection production lines and makes them unsuitable for the inspection scenarios of reflective objects. Utility Model Content

[0003] The purpose of this invention is to provide a light source for light boxes to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a light box light source, including a light box housing assembly;

[0005] A light-emitting component, wherein the light-emitting component is disposed within the light box housing assembly;

[0006] A light source diffusion component is disposed inside the light box housing assembly, and the light source diffusion component diffuses the light emitted by the light-emitting component;

[0007] A blocking component is disposed at the bottom of the light box housing assembly, and the blocking component partially blocks the light emitted by the light-emitting component.

[0008] Furthermore, the lightbox housing assembly includes a base plate, a support rod, a connecting outer ring, and a detachable housing. The support rod is fixedly installed on the bottom of the base plate, and the bottom end of the support rod is fixedly connected to the shielding assembly. The connecting outer ring is fixedly installed on the bottom of the base plate, and the top end of the detachable housing is inserted into the slot at the bottom of the connecting outer ring. The bottom end of the detachable housing is in contact with the shielding assembly.

[0009] Furthermore, the light-emitting component includes a bottom PCB, an arc-shaped PCB, and a lens window. The bottom PCB is fixedly installed on the bottom of the base plate, and the arc-shaped PCB is disposed inside the detachable housing. The top of the arc-shaped PCB is inserted into a slot connecting the bottom of the outer ring. There are two sets of lens windows, one set at the center of the base plate and the other set on the side of the detachable housing. Infrared LED beads are provided on the bottom of the bottom PCB and the outer side of the arc-shaped PCB.

[0010] Furthermore, the light source diffusion assembly includes a bottom diffusion plate and an arc-shaped diffusion plate, both of which are snapped into the light box housing assembly. The bottom diffusion plate is located below the bottom PCB, and the arc-shaped diffusion plate is located outside the arc-shaped PCB.

[0011] Furthermore, the shielding component includes a light-shielding panel, which is disposed below the light box housing assembly, and the bottom end of the support rod is fixedly connected to the light-shielding panel by screws.

[0012] Furthermore, a silicone pad is adhered to the top of the light-shielding panel, and the bottoms of the detachable outer shell, the arc-shaped PCB, and the arc-shaped diffuser plate are all pressed against the top of the silicone pad.

[0013] Furthermore, a handle is fixedly installed on the top of the base plate. There are two handles, which are symmetrically arranged on the left and right sides with respect to the center of the base plate.

[0014] Furthermore, a fixing support is fixedly installed at the bottom of the outer ring of the link by screws. Multiple fixing supports are provided and distributed around the detachable shell. The fixing supports reinforce the detachable shell, and the bottom end of the fixing supports is fixedly connected to the light shield by screws.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Specially designed infrared LED beads are used to detect defects in reflective surfaces (such as food packaging). The diffuser plate eliminates the light spots and uneven brightness caused by direct LED light, ensuring uniform lighting. The shielding component has the dual functions of "light shielding" and "assembly buffering", which protects the safety of operators and improves the stability of component connection.

[0017] 2. The support rod is made of high-strength material, with its two ends fixedly connected to the base plate and the connecting outer ring, respectively. It is used to fix the entire side light source structure, ensuring the stability of the side light source assembly during operation and preventing structural displacement due to vibration or other factors. The connecting outer ring has a ring structure, used to fix the position of each component on the side, forming a complete side lighting structure. It also works with the support rod to support and position the overall structure. The detachable shell is made of durable material, which can enclose the entire light source and protect the internal PCB board, LED beads, and other core components from damage caused by dust, moisture, and other external factors. At the same time, the shell has a reserved production line product channel, which facilitates the smooth passage of products to be tested (such as food packaging) through the light source illumination area during the testing process.

[0018] 3. The bottom PCB, as the core component of the bottom light source, combined with evenly distributed infrared LED beads, ensures the consistency of bottom light output, providing sufficient and uniform infrared illumination for bottom inspection of objects. Two curved PCBs are symmetrically installed inside the light box housing assembly. Through the curved structure design and the even distribution of LED beads, it ensures that the visual light source can output uniform infrared light around its perimeter, achieving comprehensive illumination of the sides of the object and meeting the needs of side defect detection. The lens window is made of a high light transmittance material, which can ensure that the camera lens can clearly obtain images of the product under inspection from different angles, making it easy to take real-time pictures of the product from three directions and comprehensively capture defects such as scratches and abrasions on the product surface.

[0019] 4. The light-shielding frame is made of highly light-shielding material, which can effectively prevent the leakage of infrared light from inside the light source, avoid damage to the operator's eyes caused by the leaked light, and at the same time reduce the interference of external stray light on the internal lighting environment of the light source, ensuring detection accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 A structural schematic diagram from a bottom-view perspective;

[0022] Figure 3 This utility model Figure 1 A structural schematic diagram of the front sectional view;

[0023] Figure 4 This utility model Figure 1 Exploded view of the structure;

[0024] Figure 5 This utility model Figure 4 A structural diagram of the upper section;

[0025] Figure 6 This utility model Figure 4 A structural diagram of the middle section;

[0026] Figure 7 This utility model Figure 4 A structural diagram of the lower section.

[0027] In the diagram: 100, Lightbox housing assembly; 101, Base plate; 102, Support rod; 103, Connecting outer ring; 104, Detachable housing; 200, Light-emitting component; 201, Bottom PCB; 202, Curved PCB; 203, Lens window; 300, Light source diffusion component; 301, Bottom diffusion plate; 302, Curved diffusion plate; 400, Shielding component; 401, Light shield; 402, Silicone pad; 5, Handle; 6, Fixing support. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Please see Figures 1-7 This utility model provides a technical solution: a light box light source, including a light box shell assembly 100, which serves as the "skeleton and protective shell" of the light source, and achieves support, assembly positioning and protection functions through the cooperation of multiple components;

[0030] The light-emitting component 200 is set inside the light box housing assembly 100 and serves as the "light source". It is specially designed to use infrared LED beads and is suitable for defect detection of reflective objects (such as food packaging).

[0031] The light source diffuser component 300 is disposed inside the light box housing component 100, and diffuses the light emitted by the light-emitting component 200. As a "light optimizer" of the light source, the diffuser component 300 eliminates the light spots and uneven brightness of the direct light from the LED beads, and ensures the uniformity of lighting.

[0032] The shielding component 400 is located at the bottom of the light box housing component 100 and partially blocks the light emitted by the light-emitting component 200. It has the dual functions of "light blocking" and "assembly buffer", which protects the safety of operators and improves the stability of component connection.

[0033] The lightbox housing assembly 100 includes a base plate 101, a support rod 102, a connecting outer ring 103, and a detachable housing 104. The support rod 102 is fixedly installed on the bottom of the base plate 101, and its bottom end is fixedly connected to the shielding assembly 400. The connecting outer ring 103 is fixedly installed on the bottom of the base plate 101. The top end of the detachable housing 104 is inserted into a slot at the bottom of the connecting outer ring 103, and its bottom end contacts the shielding assembly 400. The base plate 101 is made of aluminum, which reduces overall weight while ensuring structural stability, facilitating assembly with other equipment components and providing a stable mounting base for the internal components of the light source. The support rod 102 is made of high-strength material, and its two ends are respectively connected to… The base plate 101 and the connecting outer ring 103 are fixedly connected to secure the entire side light source structure, ensuring the stability of the side light source assembly during operation and preventing structural displacement due to vibration or other factors. The connecting outer ring 103 has a ring structure and is used to fix the position of each component on the side, forming a complete side lighting structure. It also works with the support rod 102 to support and position the overall structure. The detachable outer shell 104 is made of durable material and can enclose the entire light source, protecting the internal components and preventing damage from external factors such as dust and moisture. At the same time, the outer shell has a pre-reserved production line channel, allowing products to be tested (such as food packaging) to pass smoothly through the light source illumination area during the testing process.

[0034] The light-emitting component 200 includes a bottom PCB 201, an arc-shaped PCB 202, and a lens window 203. The bottom PCB 201 is fixedly installed on the bottom of the base plate 101. The arc-shaped PCB 202 is located inside the detachable housing 104, and its top end is inserted into a slot connecting the bottom of the outer ring 103. There are two sets of lens windows 203, one set located at the center of the base plate 101 and the other set located on the side of the detachable housing 104. Infrared LED beads are provided on the bottom of the bottom PCB 201 and the outer side of the arc-shaped PCB 202. The bottom PCB 201, as the core component of the bottom light source, is equipped with evenly distributed... The infrared LED beads ensure consistent bottom light output, providing ample and uniform infrared illumination for bottom inspection of objects. Two curved PCBs 202 are symmetrically installed inside the light box housing assembly 100. Through the curved structure design and uniform distribution of the LED beads, uniform infrared light is output around the visual light source, achieving comprehensive illumination of the side of the object and meeting the needs of side defect detection. The lens window 203 is made of a high light transmittance material, which ensures that the camera lens can clearly acquire images of the product under inspection from different angles, facilitating real-time photography of the product from three directions and comprehensively capturing defects such as scratches and abrasions on the product surface.

[0035] The light source diffusion assembly 300 includes a bottom diffusion plate 301 and an arc-shaped diffusion plate 302. Both the bottom diffusion plate 301 and the arc-shaped diffusion plate 302 are snapped into the light box housing assembly 100. The bottom diffusion plate 301 is located below the bottom PCB 201, and the arc-shaped diffusion plate 302 is located outside the arc-shaped PCB 202. The bottom diffusion plate 301 covers the bottom PCB 201 and can diffuse the infrared light emitted by the bottom PCB 201, further optimizing the uniformity of the light, avoiding light spots caused by direct light from the lamp beads, and improving the lighting quality of the bottom detection area. The arc-shaped diffusion plate 302 covers the outside of the arc-shaped PCB 202 and is adapted to the curvature of the arc-shaped PCB 202. It can diffuse the infrared light emitted by the arc-shaped PCB 202, eliminate the uneven brightness caused by direct light from the lamp beads, ensure the uniformity of the light in the arc-shaped light-emitting area, and improve the accuracy of side detection.

[0036] The shielding assembly 400 includes a light-shielding plate 401, which is located below the light box housing assembly 100. The bottom end of the support rod 102 is fixedly connected to the light-shielding plate 401 by screws. The light-shielding plate 401 is made of a high light-shielding material, which can effectively prevent the leakage of infrared light from the inside of the light source, avoid the leakage light from causing damage to the operator's eyes, and reduce the interference of external stray light on the internal lighting environment of the light source, thus ensuring the detection accuracy.

[0037] A silicone pad 402 is attached to the top of the light-shielding panel 401. The bottoms of the detachable housing 104, the curved PCB 202, and the curved diffuser plate 302 are all pressed on the top of the silicone pad 402. The silicone pad 402 has good elasticity and cushioning performance, and plays a role in fixing and cushioning during component assembly, avoiding wear caused by rigid contact between components. At the same time, it can fill the gaps between components and improve the sealing and stability of the overall structure.

[0038] A handle 5 is fixedly installed on the top of the base plate 101. There are two handles 5, which are symmetrically arranged on the left and right sides relative to the center of the base plate 101. The handles 5 are made of aluminum material using mold forming process, which has good structural strength and lightweight characteristics, making it convenient for operators to move and position the visual light source.

[0039] The bottom of the outer ring 103 is fixedly mounted with screws to a fixed support column 6. Multiple fixed supports 6 are provided and distributed around the detachable housing 104. The fixed supports 6 reinforce the detachable housing 104. The bottom end of the fixed supports 6 is fixedly connected to the light shield 401 with screws. The fixed supports 6 are used to further fix the curved parts (curved PCB 202 and curved diffuser plate 302), enhance the stability of the side curved structure, and prevent the curved parts from deforming or displacing during long-term use.

[0040] Working principle: When in use, the light source of the light box is installed on the automated inspection production line, so that the product channel of the production line is aligned with the conveying direction of the production line. The product to be inspected (such as food packaging) can enter the inspection area inside the light source through the product channel of the production line.

[0041] When the power to the visual light source is turned on, the infrared LED beads on the bottom PCB201 and the curved PCB202 are powered on and emit light. The light emitted from the bottom PCB201 is diffused by the bottom diffuser plate 301 and evenly illuminates the bottom of the product to be inspected. The light emitted from the curved PCB202 is diffused by the curved diffuser plate 302 and evenly illuminates the four sides of the product to be inspected. At this time, the camera takes real-time pictures of the product to be inspected from three different directions through two viewing windows on the side of the detachable housing 104 and one viewing window on the top of the base plate 101, obtaining a clear image of the product surface. Since the infrared light provided by the light source is uniform and stable, it can effectively suppress the reflection of the product surface and clearly present defects such as scratches and abrasions on the product surface, which is convenient for subsequent image analysis and defect identification. During the entire operation, the light shield 401 effectively prevents light leakage and protects the operator's eyes. The support rod 102 and the fixed pillar 6 work together to ensure the stability of the light source structure and avoid the impact of the production line vibration on the lighting and imaging effect.

[0042] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A light source for a light box, characterized in that: Includes the lightbox housing assembly (100); A light-emitting component (200) is disposed within the light box housing assembly (100); A light source diffuser assembly (300) is disposed inside the light box housing assembly (100), and the light source diffuser assembly (300) diffuses the light emitted by the light-emitting assembly (200); A shielding component (400) is disposed at the bottom of the light box housing assembly (100) and the shielding component (400) partially shields the light emitted by the light-emitting component (200).

2. The light source for the light box according to claim 1, characterized in that: The lightbox housing assembly (100) includes a base plate (101), a support rod (102), a connecting outer ring (103), and a detachable housing (104). The support rod (102) is fixedly installed at the bottom of the base plate (101). The bottom end of the support rod (102) is fixedly connected to the shielding assembly (400). The connecting outer ring (103) is fixedly installed at the bottom of the base plate (101). The top end of the detachable housing (104) is inserted into the slot at the bottom of the connecting outer ring (103). The bottom end of the detachable housing (104) is in contact with the shielding assembly (400).

3. The light source for the light box according to claim 2, characterized in that: The light-emitting component (200) includes a bottom PCB (201), an arc-shaped PCB (202), and a lens window (203). The bottom PCB (201) is fixedly installed on the bottom of the base plate (101). The arc-shaped PCB (202) is located inside the detachable housing (104). The top of the arc-shaped PCB (202) is inserted into the slot at the bottom of the connecting outer ring (103). There are two sets of lens windows (203), one set is located at the center of the base plate (101), and the other set is located on the side of the detachable housing (104). Infrared LED beads are provided on the bottom of the bottom PCB (201) and the outer side of the arc-shaped PCB (202).

4. The light source for the light box according to claim 3, characterized in that: The light source diffusion assembly (300) includes a bottom diffusion plate (301) and an arc-shaped diffusion plate (302). The bottom diffusion plate (301) and the arc-shaped diffusion plate (302) are both snapped into the light box housing assembly (100). The bottom diffusion plate (301) is located below the bottom PCB (201), and the arc-shaped diffusion plate (302) is located outside the arc-shaped PCB (202).

5. The light source for the light box according to claim 4, characterized in that: The shielding assembly (400) includes a light-shielding panel (401), which is located below the light box housing assembly (100). The bottom end of the support rod (102) is fixedly connected to the light-shielding panel (401) by screws.

6. The light source for the light box according to claim 5, characterized in that: A silicone pad (402) is attached to the top of the light-shielding panel (401), and the bottoms of the detachable shell (104), the arc-shaped PCB (202), and the arc-shaped diffuser plate (302) are all pressed on the top of the silicone pad (402).

7. The light source for the light box according to claim 2, characterized in that: A handle (5) is fixedly installed on the top of the base plate (101). There are two handles (5), which are symmetrically arranged on the left and right sides relative to the center of the base plate (101).

8. The light source for the light box according to claim 5, characterized in that: The bottom of the outer ring (103) of the link is fixedly installed with a fixed support (6) by screws. There are multiple fixed supports (6) and they are distributed around the detachable shell (104). The fixed supports (6) reinforce the detachable shell (104). The bottom end of the fixed support (6) is fixedly connected to the light shield (401) by screws.

Images