A visual light box

Abstract

The present application relates to the field of light box, disclose a kind of visual light box, including box and the shielding portion and the knob being arranged in the inside of the box, the shielding portion and the knob are respectively rotationally connected with the box, part of the shielding portion is arranged on the rotation path of the knob, the shielding portion covers the lighting assembly in the box, by rotating the knob to drive the shielding portion selectively shielding the lighting assembly or display inside the box, the shielding portion when shielding the display, the shielding portion is locked by the knob, by algorithm calculation, the color identification of pattern, and the comparison of color difference between different patterns is carried out, and the color result is output to the display screen;In addition to using camera to cooperate with lighting assembly detection, the present application is also compatible with artificial detection, i.e. through the observation of pattern color by human eye, so that the applicability of the present application is stronger.

Description

Technical Field

[0001] This invention relates to the field of light boxes, and more particularly to a visual light box. Background Technology

[0002] Currently, in dyeing and finishing laboratories, fabric sample color matching is generally done by human eyes. The fabric sample to be matched is placed in a color matching light box, which is equipped with different light sources. Experienced operators then visually identify and judge whether the color is acceptable. However, human observation and subjective judgment are highly susceptible to bias due to experience and individual circumstances. Therefore, existing technology has developed a visual light box for color sampling, which allows for cross-verification between visual and human visual inspection to reduce the probability of deviation.

[0003] For this type of visual lightbox, in order to capture large areas of fabric samples, the sampling camera is usually placed on the top of the lightbox, above the fabric sample, and the image captured by the camera is displayed on a monitor. Understandably, without the image captured by the camera displayed, the operator is not sure whether the camera can accurately capture the area of ​​the fabric sample to be matched. Therefore, a monitor is needed to facilitate manual adjustment of the fabric sample's placement to align with the camera. During this process, the operator needs to look at the monitor to adjust the position of the fabric sample. Therefore, the monitor is placed in a relatively intuitive position. Considering that a transparent glass door needs to be installed on the front of the lightbox, it is obviously difficult to install a monitor large enough to display the fabric sample. If it is installed on the outside of the lightbox, the operator needs to walk to the side of the lightbox to check whether it is aligned with the camera after each adjustment of the fabric sample's position. Specifically, when the operator adjusts the fabric sample inside the lightbox, the upper body will lean forward or even lean into the lightbox to lay and adjust the fabric sample. At this time, the monitor displays the state of the fabric sample in the area captured by the camera, which makes it convenient for the operator to make corresponding adjustments. However, if the monitor is placed outside the lightbox, the operator has to repeatedly lean forward and lean back to move out, which is very inconvenient.

[0004] Therefore, the monitor is usually embedded directly into the inner wall of the cabinet, so that the operator can adjust the position of the fabric pattern while looking at the monitor. For a similar approach, please refer to the fully automatic punching visual inspection machine disclosed in the prior art (authorization announcement number CN218646861U).

[0005] In practical applications, when the lighting components inside the lightbox are turned on, the light emitted by the display screen itself will affect the image acquisition quality of the measured object through reflection and scattering, resulting in imaging deviation or recognition error. Even when the display is turned off (i.e., it does not actively emit light), its screen surface still has a certain degree of reflectivity. Secondly, during the frequent adjustment of the fabric sample position, the lighting components are easily bumped and damaged due to the lack of protective devices. However, setting up a dedicated protective device requires a separate control system. Therefore, there is an urgent need for a mechanism that can automatically shield the display screen when the lighting components are turned on and protect the lighting components when they are turned off. Summary of the Invention

[0006] The purpose of this invention is to provide a visual lightbox to solve the above-mentioned problems. The specific technical solution is as follows:

[0007] A visual lightbox includes a housing, a blocking part and a toggle member disposed inside the housing, the blocking part and the toggle member being rotatably connected to the housing, a portion of the blocking part being disposed on the rotation path of the toggle member, the blocking part covering an illumination component inside the housing, and by rotating the toggle member causing the blocking part to selectively block either the illumination component or the display inside the housing, the blocking part being locked by the toggle member when blocking the display.

[0008] As an improvement to the above technical solution, a baffle is also included. The blocking part and the baffle are respectively disposed on opposite sides of the actuating member. The top of the housing is provided with heat dissipation holes. The actuating member supports one end of the baffle so that the other end of the baffle covers the heat dissipation holes. The configuration is such that the heat dissipation holes can be opened by rotating the actuating member to release the support of the actuating member on the baffle. One end of the baffle is provided with a counterweight block. One end of the baffle is heavier than the other end of the baffle. The middle section of the baffle is rotatably connected to the housing.

[0009] As an improvement to the above technical solution, the actuating component includes a lever and a sector block vertically connected to the side of the lever, the sector block being used to support the counterweight block.

[0010] As an improvement to the above technical solution, the first end of the blocking part is connected to a guide plate. The guide plate is provided with an arc-shaped groove for receiving the fan-shaped block. The side of the arc-shaped groove is provided with a groove. The end face of the lever is provided with a protrusion. By rotating the lever, the protrusion is made to enter the groove, thereby causing the blocking part to rotate.

[0011] As an improvement to the above technical solution, the second end side of the shielding part protrudes to make the shielding part L-shaped.

[0012] As an improvement to the above technical solution, a proximity switch is connected inside the housing. The proximity switch is located on the side of the lever and is signal-connected to the lighting component inside the housing. A sensing part for triggering the proximity switch is connected to the end face of the lever.

[0013] As an improvement to the above technical solution, the interior of the housing is provided with a storage slot for accommodating the lighting components, the heat dissipation hole is located on the top of the housing and is connected to the storage slot, and the outlet of the storage slot can be covered by the shielding part.

[0014] As an improvement to the above technical solution, the enclosure is equipped with a transparent glass door that is rotatably connected to it.

[0015] As an improvement to the above technical solution, the top surface of the box is provided with a receiving groove for accommodating the baffle, and the heat dissipation hole is connected to the receiving groove. It is configured such that when the counterweight loses the support of the fan-shaped block, one end of the baffle drops and the other end of the baffle rises.

[0016] As an improvement to the above technical solution, the actuating element is connected to a drive shaft extending to the outside of the housing, and a handle is coaxially connected to the end of the drive shaft.

[0017] The beneficial effects of the present invention are as follows: This embodiment can automatically open the heat dissipation hole by a simple toggle operation when it needs to be started, and at the same time block the display light source, effectively control the temperature rise and avoid light interference, thereby improving the stability and accuracy of image acquisition.

[0018] The combination of the fan-shaped block and the arc-shaped groove prevents the shielding part from easily shifting and causing additional light interference. It provides a stable and reliable mechanical transmission method, allowing the shielding part to move synchronously with the movement of the toggle component, ensuring the coordination of the structure and the smoothness of operation.

[0019] Allows users to control the state of the toggle switch by rotating the handle without opening the enclosure, thus enabling the conversion control of the internal structure;

[0020] The invention adds a camera to capture images and collect fabric sample color data. After the data is collected, the algorithm calculates and identifies the fabric sample color, compares the color differences between different fabric samples, and outputs the color results to the display screen. In addition to using a camera and lighting components for detection, the invention is also compatible with manual detection, i.e., observing the fabric sample color with the human eye, making the invention more applicable.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the box body of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the shielding part of the present invention.

[0026] Figure 4 This is a schematic diagram of another structure of the shielding part of the present invention.

[0027] Figure 5 This is a schematic diagram of the baffle of the present invention.

[0028] Figure 6 A schematic diagram of the structure of the actuating component of the present invention.

[0029] Figure 7 A schematic diagram of the proximity switch of the present invention.

[0030] In the diagram: 1. Housing; 2. Shielding part; 3. Actuator; 4. Baffle; 5. Camera; 6. Proximity switch; 7. Display; 8. Transparent glass door; 9. Lighting assembly; 11. Heat dissipation hole; 21. Arc groove; 22. Groove; 31. Lever; 32. Fan-shaped block; 33. Handle; 34. Sensor; 41. Counterweight. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments 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.

[0032] Existing methods for image acquisition of objects under test are prone to detection errors due to light interference and overheating; please refer to... Figure 1-7 The present invention provides a visual lightbox to solve the above problems, specifically including a box body 1 and a blocking part 2, a toggle member 3 and a baffle 4 disposed inside the box body 1;

[0033] The shielding part 2 and the baffle 4 are respectively disposed on opposite sides of the toggle member 3, and the shielding part 2, the toggle member 3, and the baffle 4 are rotatably connected to the housing 1. The top of the housing 1 is provided with a heat dissipation hole 11. The toggle member 3 supports one end of the baffle 4 so that the other end of the baffle 4 covers the heat dissipation hole 11. The heat dissipation hole 11 is used to dissipate the heat generated by the operation of the lighting component 9. Part of the shielding part 2 is disposed on the rotation path of the toggle member 3. It is configured to open the heat dissipation hole 11 by rotating the toggle member 3 to release the support of the toggle member 3 on the baffle 4. The toggle member 3 drives the shielding part 2 to rotate to the front of the display 7 inside the housing 1 to block the display 7. In this embodiment, the heat dissipation hole 11 can be automatically opened by a simple toggle operation when it needs to be started, and the light source of the display 7 is blocked at the same time, effectively controlling the temperature rise and avoiding light interference, thereby improving the stability and accuracy of image acquisition.

[0034] It should be noted that, considering that this invention is applied to the detection of fabric, the fabric is relatively thin and is laid flat on the bottom of the box, so it will not occupy a large space inside the box 1. Therefore, there is enough space to install the shielding part 2. If the object to be detected is another large object, this invention is not applicable, and the problem that the shielding part 2 will occupy the space of the object being tested needs to be considered.

[0035] It is understandable that the heat dissipation vent 11 is closed by default or when the housing 1 is not in operation. The lighting component 9 is typically installed on the top of the lightbox, and it easily generates a lot of heat during operation. Without an effective heat dissipation mechanism, heat accumulation can lead to an increase in internal temperature, affecting the stability of image recognition and the lifespan of the equipment. Therefore, some technical solutions attempt to set heat dissipation vents 11 on the top of the housing 1 to enhance air convection and heat dissipation. However, the opening of the heat dissipation vent 11 also brings new problems. Since it is usually directly connected to the external environment, if the heat dissipation vent 11 remains open, dust, foreign objects, and external stray light can easily enter the lightbox through the vent 11, affecting the cleanliness of the internal environment, damaging components such as the lighting component 9 and the display 7, and potentially causing image detection errors. Therefore, it is only necessary to open the heat dissipation vent 11 when the housing 1 is in operation.

[0036] Regarding the opening and closing of the heat dissipation hole 11, in this embodiment, a counterweight 41 is provided at one end of the baffle 4. One end of the baffle 4 is heavier than the other end of the baffle 4. The middle section of the baffle 4 is rotatably connected to the box 1, thereby ensuring that it can automatically fall and drive the other end to rise when it loses support, so as to cooperate with the opening or closing of the heat dissipation hole 11. This design automatically drives the baffle 4 to move by gravity, simplifies the control mechanism, realizes automatic opening without electric components, and helps to simplify the structure and reduce the failure rate.

[0037] Specifically, to enable the baffle 4 to automatically flip according to the state of the actuating element 3 without relying on an electric device, the present invention provides a counterweight 41 at one end of the baffle 4. This end has a larger mass than the other end, forming a lever structure. When the actuating element 3 supports the counterweight end, the baffle 4 remains horizontal to block the heat dissipation hole 11. When the actuating element 3 rotates away from the support position, the baffle 4 rotates around the central axis due to the counterweight, with one end drooping and the other end tilting upward, thereby automatically opening the heat dissipation hole 11. The automatic flipping of the baffle 4 is achieved by using gravity, without the need for an additional driving device, making the structure simpler, the response faster, and the operation more reliable. Preferably, the interior of the housing 1 is provided with a storage slot for accommodating the lighting component 9. The heat dissipation hole 11 is located on the top of the housing 1 and is connected to the storage slot. Under the premise of ensuring good heat dissipation of the lighting system, it effectively prevents dust and pollution, extends the life of the lighting component 9, and maintains the clarity of image acquisition.

[0038] In some embodiments, to ensure that the baffle 4 can stably cover the heat dissipation hole 11 when not in operation, the present invention provides a toggle member 3 structure with a fan-shaped block 32. The toggle member 3 includes a lever 31 and a fan-shaped block 32 vertically connected to the side of the lever 31. The fan-shaped block 32 is used to support the counterweight 41 or to support the bottom of the counterweight end of the baffle 4. The first end of the blocking part 2 is connected to a guide plate. The guide plate is provided with an arc groove 21 for receiving the fan-shaped block 32. The side of the arc groove 21 is provided with a groove 22. The end face of the lever 31 is provided with a protrusion. By rotating the toggle member 3, the protrusion enters the groove 22, thereby actuating the blocking part 2. The user can rotate the fan-shaped block 32 by rotating the lever 31, thereby controlling whether to support the counterweight part of the baffle 4, and thus realizing the opening and closing control of the baffle 4. This structure allows the operator to control the state of the baffle 4 by manually toggling. The structure is simple, the mechanical response is fast, and it is not easy to fail.

[0039] To achieve the linkage control between the actuating element 3 and the blocking part 2, when the lever 31 is rotated, the protrusion first enters the groove 22 to drive the blocking part 2 to rotate. Then, the fan-shaped block 32 enters the arc-shaped groove 21. The arc-shaped groove 21 guides the fan-shaped block 32 and ensures that the fan-shaped block 32 has a stable sliding path during the actuation process. It should be noted that although the blocking part 2 and the housing 1 are rotatably connected, in the default state of this invention, the blocking part 2 will not swing freely or droop due to gravity. Therefore, the blocking part 2 is designed with a certain rotational damping or mechanical limiting structure, such as an elastic element, friction pair, or snap-fit ​​device, so that in the non-actuating state, the blocking part 2 needs to overcome a certain reaction force to complete the rotation. This structure allows the shielding part 2 to remain stably in a lateral posture without external force intervention, avoiding positional displacement due to its own weight or slight external vibrations. Secondly, it is also necessary to reduce the weight of the shielding part 2 to avoid the difficulty in designing related rotational damping or mechanical limiting structures. A lighter shielding part 2 is more susceptible to external disturbances and will swing, thus affecting the shielding effect. Therefore, by utilizing the cooperation between the fan-shaped block 32 and the arc-shaped groove 21, it is also possible to prevent the shielding part 2 from swinging due to its lighter weight.

[0040] Under the above conditions, combined with the cooperation of the fan-shaped block 32 and the arc-shaped groove 21, the shielding part 2 will not easily shift and cause additional light interference. This embodiment provides a stable and reliable mechanical transmission method, so that the shielding part 2 moves synchronously with the action of the toggle member 3, ensuring the coordination of the structure and the smoothness of operation.

[0041] In some embodiments, in order to improve the light-shielding performance of the display 7 area, the present invention provides a lateral protrusion at the second end of the shielding part 2, so that the shielding part 2 presents an L-shaped structure. The L-shaped structure has a larger shielding angle and coverage area, and can accurately shield the display 7 area when the toggle member 3 drives the shielding part 2 to rotate.

[0042] In some embodiments, a proximity switch 6 is connected inside the housing 1. The proximity switch 6 is located on the side of the lever 31, specifically on the side of the movement path of the lever 31. The proximity switch 6 is signal-connected to the lighting component 9 inside the housing 1. A sensing part 34 for triggering the proximity switch 6 is connected to the end face of the lever 31, realizing intelligent linkage between the mechanical structure and the electronic lighting. When the lever 3 rotates to a specific angle, the sensing part 34 triggers the proximity switch 6, causing the lighting component 9 to turn on or off. This enables automatic control of the light source according to the usage status, improves the intelligence level of the lighting system, and automatically controls the lighting switch in conjunction with structural actions, saving energy and protecting the environment, while avoiding human error or accidental triggering.

[0043] In some embodiments, to improve user convenience, the toggle 3 is connected to a drive shaft extending to the outside of the housing 1, and the end of the drive shaft is coaxially connected to a handle 33, allowing the user to control the state change of the toggle 3 by rotating the handle 33 without opening the housing 1, thereby realizing the conversion control of the internal structure, improving the convenience and safety of human-computer interaction, and being suitable for rapid response and frequent operation in various application environments.

[0044] In this invention, a camera 5 is also installed on the top of the housing 1 in conjunction with a lighting component 9. The camera 5 is not obstructed by the obstruction part 2. In the early preparation stage, the camera 5, in conjunction with the display 7, can be aimed at the area of ​​the fabric sample that needs to be matched for color matching, thereby increasing the camera 5's photo capture function. After collecting the fabric sample color data, the color of the fabric sample is identified through algorithm calculation, and the color difference between different fabric samples is compared. The color results are then output to the display 7. In addition, the door of the housing 1 of this invention is a transparent glass door 8. It can be understood that, in addition to using the camera 5 in conjunction with the lighting component 9 for detection, this invention is also compatible with manual detection, that is, observing the color of the fabric sample with the human eye, making the applicability of this invention stronger.

[0045] For lighting components 9 or light sources, specifically including: artificial fluorescent lamp D65, ultraviolet lamp light source, incandescent lamp light source, CoolWhite Fluorescent (CWF) light source, Triphosphor Lamp P15 (TL84) light source, etc.

[0046] The specific operation of the equipment is as follows:

[0047] 1. Send the object to be tested into the chamber 1, turn on the camera 5 to perform color detection, and output the color data RGB.

[0048] 2. Perform positioning color detection, with a maximum of four-point positioning.

[0049] 3. Detect the color of two selected points and output the detection results.

[0050] 4. The default detection range is a plane with a height of approximately 300 mm and a width of approximately 600 mm (maximum four positions).

[0051] 5. Bind the work order QR code, machine number, operator's employee number, test results and test photos. Once the test begins, these cannot be modified.

[0052] The repeatability of this invention is ≤±1.5%, and it retains all the functions of the old lightbox. It features 16DI / 16DO programmable input / output ports (adding the original lightbox functions), allowing remote network access to retrieve test results via software. The lighting component 9, i.e., the lamp tube, records usage time and provides reminders to replace it when the designed usage period arrives.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A visual light box, characterized in that, The box includes a box body, a shielding part and a knob, the shielding part and the knob are rotatably connected with the box body, part of the shielding part is arranged on the rotating path of the knob, the shielding part covers the lighting assembly in the box body, the knob is rotated to drive the shielding part to selectively shield the lighting assembly or the display in the box body, the shielding part is locked by the knob when shielding the display; The box further includes a baffle, the shielding part and the baffle are arranged on opposite sides of the knob, the top of the box body is provided with a heat dissipation hole, one end of the baffle is supported by the knob so that the other end of the baffle covers the heat dissipation hole, the heat dissipation hole is opened by rotating the knob to release the support of the knob on the baffle, one end of the baffle is provided with a counterweight, one end of the baffle is heavier than the other end of the baffle, the middle section of the baffle is rotatably connected with the box body; The knob includes a knob rod and a fan-shaped block vertically connected to the side surface of the knob rod, the fan-shaped block is used to support the counterweight; The first end of the shielding part is connected with a guide plate, the guide plate is provided with an arc-shaped groove for accommodating the fan-shaped block, the side of the arc-shaped groove is provided with a groove, the end surface of the knob rod is provided with a protrusion, the knob is rotated so that the protrusion enters the groove to rotate the shielding part; The box body is connected with a proximity switch, the proximity switch is arranged on the side of the knob rod, the proximity switch is signal connected with the lighting assembly in the box body, the end surface of the knob rod is connected with a sensing part for triggering the proximity switch.

2. A visual display light box as claimed in claim 1 wherein: The second end of the shielding part is protruded on the side surface so that the shielding part has an L shape.

3. A visual display case according to claim 1, wherein: The inside of the box body is provided with a receiving groove for accommodating the lighting assembly, the heat dissipation hole is arranged on the top of the box body and communicates with the receiving groove, the outlet of the receiving groove can be covered by the shielding part.

4. A visual display case according to claim 1, wherein: The box body is provided with a transparent glass door rotatably connected therewith.

5. A visual display case according to claim 1, wherein: The top surface of the box body is provided with a receiving groove for accommodating the baffle, the heat dissipation hole communicates with the receiving groove, when the counterweight loses the support of the fan-shaped block, one end of the baffle falls and lifts up the other end of the baffle.

6. A visual display case according to claim 1, wherein: The knob is connected with a transmission shaft extending to the outside of the box body, the end of the transmission shaft is coaxially connected with a handle.

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