Material image acquisition equipment with uniform brightness and high color rendition degree

Abstract

The utility model discloses material image acquisition equipment with uniform brightness and high color rendition degree, which comprises an acquisition box, a conveying assembly, an upper lighting assembly, a lower lighting assembly and an acquisition assembly, the upper lighting assembly is arranged in the middle or at the upper part of a frame body, the lower lighting assembly is arranged at the lower part of the frame body, and the acquisition assembly is arranged in the middle or at the lower part of the frame body. The upper lighting assembly comprises an upper lamp source and an upper driving mechanism, the irradiation face of the upper lamp source inclines downwards to face the collecting station, the upper driving mechanism can change the angle of the irradiation face of the upper lamp source, the lower lighting assembly comprises a lower lamp source and a lower driving mechanism, the irradiation face of the lower lamp source inclines upwards, and the lower driving mechanism can change the angle of the irradiation face of the lower lamp source. The lower driving mechanism can change the angle of the irradiation face of the lower lamp source, the lamp further comprises a lampshade assembly, the lampshade assembly comprises a lampshade body and a lampshade driving part, and the lampshade driving part can drive the lampshade body to swing up and down. According to the utility model, lighting can be carried out from two dimensions, a good image acquisition effect is obtained, and the image acquisition quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of image acquisition, in particular to a material image acquisition device with uniform brightness and high color reproduction. Background Art

[0002] At present, material image acquisition equipment with uniform brightness and high color reproduction is widely used in the image acquisition process of materials such as tiles, stones, and plates. They can record the shape and material details of the materials, providing strong support for subsequent analysis, record keeping and production tracking. Material image acquisition equipment with uniform brightness and high color reproduction usually includes a conveyor line, an image acquisition camera and a light source for lighting. The conveyor line is responsible for conveying the materials to the bottom of the image acquisition camera, and the light source illuminates the materials from the side so that the image acquisition camera can accurately collect the structure, shape, material, color and other information of the materials. Existing material image acquisition equipment is usually equipped with only a single light source to illuminate the materials. This lighting method is relatively simple and easy to use, but it can only be applied to materials with regular and simple shapes and smooth surfaces. For materials with larger formats, local concave and convex surfaces or strong three-dimensional sense (such as special tiles, etc.), a single light source cannot express the structure of the concave and convex surface or produce more shadows or uneven light reception and large color difference on the concave and convex surface or three-dimensional materials, thereby failing to obtain better acquisition effect and acquisition quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a material image acquisition device with uniform brightness and high color reproduction, which can illuminate from two dimensions to obtain better image acquisition effect and improve image acquisition quality.

[0004] In order to solve the above technical problems, the utility model provides a material image acquisition device with uniform brightness and high color reproduction, which is used for acquiring images of materials, including a acquisition box, a conveying component connected to the acquisition box, an upper lighting component, a lower lighting component and a acquisition component located in the acquisition box, the acquisition box including a box body and a frame, a front door panel is provided on one side of the box body, an input port is provided on the front door panel, the conveying component includes a conveyor belt, the conveyor belt passes through the input port, materials are placed on the conveyor belt for transportation, and a acquisition station is provided in the box body.

[0005] The upper lighting component is arranged at the middle or upper part of the frame, and the lower lighting component is arranged at the lower part of the frame. The upper lighting component includes an upper light source and an upper driving mechanism. The illumination surface of the upper light source is inclined downward toward the collection station, and the upper driving mechanism can change the angle of the illumination surface of the upper light source. The lower lighting component includes a lower light source and a lower driving mechanism. The illumination surface of the lower light source is inclined upward, and the lower driving mechanism can change the angle of the illumination surface of the lower light source.

[0006] The acquisition component includes an image acquisition device, and the image acquisition device is arranged above the acquisition station.

[0007] As an improvement of the above-mentioned scheme, the frame includes side frames, which are arranged on the left and right sides of the main door panel. The upper driving mechanism includes an upper driving member and an upper swinging member. One end of the upper swinging member is connected to the movable end of the upper driving member, and the other end is connected to the upper light source. The upper driving member can drive the upper light source to swing up and down through the upper swinging member.

[0008] As an improvement of the above scheme, it also includes a lampshade assembly, which includes a cover body and a lampshade driving member, the cover body is arranged to cover the outside of the upper light source, the cover body includes an opening portion and a connecting portion, the opening portion gradually expands from the upper light source toward the inside of the box body, the connecting portion is connected to the movable end of the lampshade driving member, and the lampshade driving member can drive the cover body to swing up and down through the connecting portion.

[0009] As an improvement of the above-mentioned solution, the lampshade assembly also includes a hinged rod and a slider, one end of the hinged rod is hinged to the upper side of the cover body, and the other end is hinged to the side of the slider, the slider is sleeved outside the side frame, the slider can slide on the side frame, and when the cover body swings up and down, the slider can be driven to move up and down on the side frame.

[0010] As an improvement of the above-mentioned scheme, the lower driving mechanism includes a lower driving member and a support plate, the lower driving member is arranged on the side frame, one end of the support plate is connected to the movable end of the lower driving member, and the other end extends toward the inner side of the box body, and the lower light source is fixed on the upper side of the support plate.

[0011] As an improvement of the above-mentioned solution, the collection component also includes a collection lifting mechanism, which includes a collection lifting drive and a collection lifting rod. The frame also includes a top frame located on the top of the side frame. The collection lifting drive is fixed on the top frame. The movable end of the collection lifting drive is connected to the collection lifting rod, and the collection lifting rod is connected to the image acquisition instrument.

[0012] As an improvement of the above-mentioned solution, the acquisition component also includes a universal adjustment mechanism, which includes a universal slot, a universal ball and a locking rod. The acquisition lifting rod is connected to the universal slot, the universal ball is connected to the image acquisition instrument, the universal ball can move in the universal slot, and the locking rod is arranged on the side of the universal slot and can fix the universal ball.

[0013] As an improvement of the above solution, the inner wall of the box body is provided with a first flocking layer, the surface of the conveyor belt is provided with a second flocking layer, and the inner and outer sides of the opening are provided with a third flocking layer.

[0014] The implementation of this utility model has the following beneficial effects:

[0015] The material image acquisition device with uniform brightness and high color reproduction of the utility model is provided with an acquisition box, a conveying component connected to the acquisition box, an upper lighting component, a lower lighting component and an acquisition component located in the acquisition box, the conveying component can transport the material into the box body of the acquisition box, and the upper lighting component is arranged in the middle or upper part of the frame of the acquisition box, and can illuminate the material on the acquisition station from the upper part or the middle part. Under the illumination of the upper side light, for the material with strong three-dimensional sense, the acquired picture can form a certain shadow, and can produce a large light-dark contrast, thereby increasing the three-dimensional sense of the material, and the lower lighting component is located at the lower part of the frame, and the lower lighting component The illumination surface of the lower light source is tilted upward, and the lower side of the collection station can be illuminated. For materials with concave and convex surfaces, the traditional single light source will make the convex surface brighter than the concave surface, the brightness is not uniform, and it is easy to produce color difference. In the utility model, the upward light can make the light produce more diffuse reflection in the box, so that it can form a certain compensation for the illumination of the concave surface. In addition, the upper lighting component that is tilted downward can improve the surface brightness uniformity of the concave and convex surface materials. The improvement of brightness uniformity helps to reduce color difference, so as to improve the color difference restoration. Moreover, since the upper lighting component and the lower lighting component are both tilted for lighting, the shadows on the concave and convex surfaces can be lightened or eliminated. Therefore, the utility model can illuminate from two dimensions, upper and lower, and can obtain better image acquisition effects, thereby improving the image acquisition quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of a material image acquisition device with uniform brightness and high color reproduction of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the material image acquisition device with uniform brightness and high color reproduction of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the upper lighting component and the lampshade component of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the lower lighting assembly of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the acquisition component of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0022] See also Figure 1 and Figure 2 The embodiment of the utility model discloses a material image acquisition device with uniform brightness and high color reproduction, which is used for acquiring images of materials. The materials include stone, plate, tile, etc. The material image acquisition device with uniform brightness and high color reproduction includes a collection box 1, a conveying component 2 connected to the collection box 1, an upper lighting component 3, a lower lighting component 4 and a collection component 5 located in the collection box 1. Different from the traditional material image acquisition device with uniform brightness and high color reproduction, the utility model is provided with the upper lighting component 3 and the lower lighting component 4, which can respectively illuminate the material from two heights. The collection box 1 includes a box body 11 and a frame body 12. A front door plate 111 is provided on one side of the box body 11, and an input port 112 is provided on the front door plate 111. The conveying component 2 includes a conveyor belt 21, and the conveyor belt 21 passes through the input port 112. The material is placed on the conveyor belt 21 for transportation. A collection station 13 is provided in the box body 11. When the conveyor belt 21 is running, the material can be brought to the collection station 13.

[0023] The upper lighting component 3 is arranged at the middle or upper part of the frame 12, and the lower lighting component 4 is arranged at the lower part of the frame 12, so that the material can be illuminated from two heights. More specifically, the upper lighting component 3 is arranged at two symmetrical positions in the middle or upper part of the frame 12, and the lower lighting component 4 is arranged at two symmetrical positions in the lower part of the frame 12. The upper lighting component 3 includes an upper light source 31 and an upper driving mechanism 32. The irradiation surface of the upper light source 31 is tilted downward toward the collection station 13. The upper driving mechanism 32 can change the angle of the irradiation surface of the upper light source 31, thereby changing the lighting angle of the material. The lower lighting component 4 includes a lower light source 41 and a lower driving mechanism 42. The irradiation surface of the lower light source 41 is tilted upward, so that the material can be illuminated from the bottom. The lower driving mechanism 42 can change the angle of the irradiation surface of the lower light source 41. The adjustment range of the angle is between 0° and 90°. The acquisition component 5 includes an image acquisition device 51, which is arranged above the acquisition station 13 to shoot and acquire images of the material on the acquisition station 13. The image acquisition device 51 is preferably a camera. The upper light source 31 and the lower light source 41 are preferably long strip-shaped light-emitting parts, and their length directions are parallel to the two sides of the material.

[0024] The beneficial effects of the embodiments of the utility model are as follows:

[0025] The material image acquisition device with uniform brightness and high color reproduction of the utility model embodiment is provided with an acquisition box 1, a conveying component 2 connected to the acquisition box 1, an upper lighting component 3, a lower lighting component 4 and a acquisition component 5 located in the acquisition box 1, the conveying component 2 can transport the material to the box body 11 of the acquisition box 1, and the upper lighting component 3 is arranged in the middle or upper part of the frame 12 of the acquisition box 1, and can illuminate the material on the acquisition station 13 from the upper part or the middle. Under the illumination of the upper side light, for the material with strong three-dimensional sense, the acquired picture can form a certain shadow and can produce a large light-dark contrast, thereby increasing the three-dimensional sense of the material, and the lower lighting component 4 is located at the lower part of the frame 12, and the The illumination surface of the lower light source 41 of the lower lighting component 4 is tilted upward to illuminate the lower side of the collection station 13. For materials with concave and convex surfaces, the traditional single light source will make the convex surface brighter than the concave surface, the brightness is not uniform, and it is easy to produce color difference. In the utility model, the upward light can make the light produce more diffuse reflection in the box 11, so that it can form a certain compensation for the illumination of the concave surface. In addition, the upper lighting component 3 that is tilted downward can improve the surface brightness uniformity of the concave and convex materials. The improvement of brightness uniformity helps to reduce color difference to improve color difference restoration. Moreover, since the upper lighting component 3 and the lower lighting component 4 are both tilted for lighting, the shadows on the concave and convex surfaces can be lightened or eliminated. Therefore, the utility model can illuminate from two dimensions, upper and lower, and can obtain better image acquisition effects, thereby improving image acquisition quality.

[0026] See also Figure 3 The frame 12 includes a side frame 121, and the side frame 121 is arranged on the left and right sides of the main door plate 111. The upper driving mechanism 32 includes an upper driving member 321 and an upper swinging member 322. One end of the upper swinging member 322 is connected to the movable end of the upper driving member 321, and the other end is connected to the upper light source 31. The upper driving member 321 is preferably a cam mechanism, a motor or other component with a linear driving function. The upper driving member 321 can drive the upper light source 31 to swing up and down through the upper swinging member 322. With the horizontal line as the initial angle, the upper driving member 321 can specifically drive the upper light source 31 to swing between -90° and 90°, so that the material can be irradiated from any angle.

[0027] Furthermore, in order to control the scattering direction of the upper light source 31, the material image acquisition device with uniform brightness and high color reproduction also includes a lampshade assembly 6, which includes a cover body 61 and a lampshade driving member 62. The cover body 61 is arranged outside the upper light source 31, and the lampshade driving member 62 is preferably a component with a linear driving function such as a cam mechanism and a motor. The cover body 61 includes an opening portion 611 and a connecting portion 612. The opening portion 611 gradually expands from the upper light source 31 to the inside of the box body 11 to form a trumpet shape. The connecting portion 612 is connected to the movable end of the lampshade driving member 62 for fixed connection to the opening portion 611, and the lampshade driving member 62 can drive the cover body 61 to swing up and down through the connecting portion 612. A traditional lampshade is fixed in the center of the light source, but in the present invention, the cover body 61 can swing at a certain angle relative to the upper light source 31, that is, when the irradiation direction of the upper light source 31 remains unchanged (the overall brightness of the original illumination direction remains unchanged), the cover body 61 can swing upward or downward relative to the upper light source 31, thereby controlling the light of the upper light source 31 to scatter more upward or downward, thereby obtaining a more ideal lighting effect.

[0028] Since the cover body 61 is heavy, in order to stably control the cover body 61, the lampshade assembly 6 further includes a hinge rod 63 and a slider 64, one end of the hinge rod 63 is hinged to the upper side of the cover body 61, and the other end is hinged to the side of the slider 64, the slider 64 is sleeved outside the side frame 121, and the slider 64 can slide on the side frame 121. When the lampshade driving member 62 drives the cover body 61 to swing up and down, the slider 64 can move up and down on the side frame 121. The side frame 121 provides guidance and stable connection for the sliding of the slider 64.

[0029] Further, see Figure 4 The lower driving mechanism 42 includes a lower driving member 421 and a support plate 422. The lower driving member 421 is arranged on the side frame 121. One end of the support plate 422 is connected to the movable end of the lower driving member 421, and the other end extends toward the inner side of the box body 11. The lower light source 41 is fixed to the upper side of the support plate 422. The lower driving member 421 is preferably a component with a linear driving function such as a cam mechanism, a motor, etc., and the support plate 422 ensures that the lower driving member 421 can swing stably.

[0030] See also Figure 5The acquisition assembly 5 further includes an acquisition lifting mechanism 52, which includes an acquisition lifting drive 521 and an acquisition lifting rod 522. The frame 12 further includes a top frame 122 located at the top of the side frame 121. The acquisition lifting drive 521 is fixed on the top frame 122. The movable end of the acquisition lifting drive 521 is connected to the acquisition lifting rod 522, and the acquisition lifting rod 522 is connected to the image acquisition instrument 51. The acquisition lifting mechanism 52 can control the height of the image acquisition instrument 51, thereby controlling the focus distance, and can also adjust the position of the image acquisition instrument 51 relative to the upper light source 31 and the lower light source 41 to avoid affecting the illumination.

[0031] Furthermore, in order to be able to adjust the horizontal state and shooting angle of the image acquisition device 51, the acquisition component 5 also includes a universal adjustment mechanism 53, the universal adjustment mechanism 53 includes a universal slot 531, a universal ball 532 and a locking rod 533, the acquisition lifting rod 522 is connected to the universal slot 531, the universal ball 532 is connected to the image acquisition device 51, the universal ball 532 can move in the universal slot 531, the universal ball 532 can rotate and swing to adjust the shooting angle of the image acquisition device 51 and the horizontal state relative to the material, the locking rod 533 is arranged on the side of the universal slot 531 and can fix the universal ball 532.

[0032] In order to obtain a better scattering effect, the inner wall of the box body 11 is provided with a first flocking layer 113, and the surface of the conveyor belt 21 is provided with a second flocking layer 211. At the same time, in order to prevent the surrounding stray light from entering the image acquisition device 51, a third flocking layer is provided on the inside and outside of the opening 611.

[0033] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. A material image acquisition device with uniform brightness and high color reproduction, used for acquiring images of materials, characterized in that: It includes a collection box, a conveying assembly connected to the collection box, an upper lighting assembly, a lower lighting assembly and a collection assembly located in the collection box, the collection box includes a box body and a frame, a front door plate is provided on one side of the box body, an input port is provided on the front door plate, the conveying assembly includes a conveyor belt, the conveyor belt passes through the input port, materials are placed on the conveyor belt for transportation, and a collection station is provided in the box body; The upper lighting assembly is arranged at the middle or upper part of the frame, and the lower lighting assembly is arranged at the lower part of the frame. The upper lighting assembly includes an upper light source and an upper driving mechanism. The irradiation surface of the upper light source is inclined downward toward the collection station. The upper driving mechanism can change the angle of the irradiation surface of the upper light source. The lower lighting assembly includes a lower light source and a lower driving mechanism. The irradiation surface of the lower light source is inclined upward. The lower driving mechanism can change the angle of the irradiation surface of the lower light source. The acquisition component includes an image acquisition device, and the image acquisition device is arranged above the acquisition station.

2. The material image acquisition device with uniform brightness and high color reproduction according to claim 1 is characterized in that: The frame includes side frames, which are arranged on the left and right sides of the main door panel. The upper driving mechanism includes an upper driving member and an upper swinging member. One end of the upper swinging member is connected to the movable end of the upper driving member, and the other end is connected to the upper light source. The upper driving member can drive the upper light source to swing up and down through the upper swinging member.

3. The material image acquisition device with uniform brightness and high color reproduction according to claim 2 is characterized in that: It also includes a lampshade assembly, which includes a cover body and a lampshade driving member. The cover body is arranged to cover the outside of the upper light source. The cover body includes an opening portion and a connecting portion. The opening portion gradually expands from the upper light source toward the inside of the box body. The connecting portion is connected to the movable end of the lampshade driving member. The lampshade driving member can drive the cover body to swing up and down through the connecting portion.

4. The material image acquisition device with uniform brightness and high color reproduction according to claim 3 is characterized in that: The lampshade assembly also includes a hinged rod and a slider, one end of the hinged rod is hinged to the upper side of the cover body, and the other end is hinged to the side of the slider, the slider is sleeved outside the side frame, the slider can slide on the side frame, and when the cover body swings up and down, the slider can be driven to move up and down on the side frame.

5. The material image acquisition device with uniform brightness and high color reproduction according to claim 2 is characterized in that: The lower driving mechanism includes a lower driving member and a support plate. The lower driving member is arranged on the side frame. One end of the support plate is connected to the movable end of the lower driving member, and the other end extends toward the inner side of the box body. The lower light source is fixed on the upper side of the support plate.

6. The material image acquisition device with uniform brightness and high color reproduction according to claim 2 is characterized in that: The acquisition component also includes an acquisition lifting mechanism, which includes an acquisition lifting drive and an acquisition lifting rod. The frame also includes a top frame located on the top of the side frame. The acquisition lifting drive is fixed on the top frame. The movable end of the acquisition lifting drive is connected to the acquisition lifting rod, and the acquisition lifting rod is connected to the image acquisition instrument.

7. The material image acquisition device with uniform brightness and high color reproduction according to claim 6 is characterized in that: The acquisition component also includes a universal adjustment mechanism, which includes a universal slot, a universal ball and a locking rod. The acquisition lifting rod is connected to the universal slot, the universal ball is connected to the image acquisition instrument, the universal ball can move in the universal slot, and the locking rod is arranged on the side of the universal slot and can fix the universal ball.

8. The material image acquisition device with uniform brightness and high color reproduction according to claim 3 is characterized in that: The inner wall of the box body is provided with a first flocking layer, the surface of the conveyor belt is provided with a second flocking layer, and the inner side and the outer side of the opening are both provided with a third flocking layer.

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