Large-area scanner

Abstract

The utility model relates to the scanner field, and specifically discloses a large area scanner comprising a pedestal, a column, a cantilever, a mounting support, a camera and a light supplement lamp, the pedestal, the cantilever, the mounting support and the camera are connected in sequence, the mounting support adopts a rectangular frame and surrounds the camera, the light supplement lamp is based on the mounting support, the irradiation direction is downward, and the light supplement lamp is connected with the column. A large number of cameras are arranged. The mounting bracket is annular and provides more positions for mounting the light supplementing lamps, so that the periphery of the base can be uniformly irradiated, the dead angles of the material tray are comprehensively reduced, and the success rate of image recognition is favorably improved.

Description

Technical Field

[0001] The utility model belongs to the field of scanners, in particular to a large area scanner. Background Art

[0002] A scanner is a device that uses photoelectric technology and digital processing technology to convert graphic or image information into digital signals by scanning. It is usually used as an external instrument for computers. It captures images and converts them into digital input devices that can be displayed, edited, stored and output by computers. Taking a flat scanner as an example, the camera is installed at a high place through a cantilever to identify the graphics below. In order to improve the brightness of the workpiece to be identified and thus improve the accuracy of identification, the scanner will set a fill light, but the single fill light method from top to bottom is easy to interfere with the camera and interfere with the scanning imaging effect. If the workpiece to be identified occupies a large area, the edge area of ​​the workpiece to be identified is dark, which is not conducive to graphic analysis.

[0003] Our company is engaged in the production of data cables. In order to improve the detection efficiency of data cables, about 50 data cables are installed in a fixture, and the data cables are temporarily fixed through the fixture's own card slots. Then the fixture is moved as a whole to the bottom of the scanner, and the size and consistency of the data cables are determined through graphic analysis. At the same time, it is necessary to ensure that the scanning cycle of each batch of workpieces is within 30s. The existing scanners are difficult to meet production requirements. Utility Model Content

[0004] The utility model aims to provide a large area scanner with good illumination effect.

[0005] To achieve the above-mentioned purpose, the utility model provides a large-area scanner, including: a base, a column, a cantilever and a mounting bracket, the base is horizontally arranged for placing a material tray, the column is vertically installed on the edge of the base, the cantilever is horizontally installed on the top of the column, the cantilever is provided with a camera, the recognition direction of the camera is facing downward, the mounting bracket is in the shape of a quadrilateral frame and is open in the middle, the mounting bracket is fixed to the cantilever and surrounds the camera in the middle, and fill lights are provided at the bottom of the four sides of the mounting bracket, and the illumination direction of several fill lights is facing downward.

[0006] As an improvement of the above solution, two screws are provided on the top of the mounting bracket, the two screws pass through the cantilever, and tightening knobs are provided on the two screws to limit the falling of the mounting bracket. The height of the mounting bracket is changed by rotating the tightening knobs.

[0007] As an improvement of the above scheme, the mounting bracket is formed by splicing several guide rails with U-shaped cross-sections end to end, the fill light is placed in the guide rails, the upper surface of the mounting bracket is provided with heat dissipation holes, and the mounting bracket is provided with a light guide plate below the fill light.

[0008] As an improvement of the above solution, the light guide plate is arranged to be inclined toward the center of the base.

[0009] As an improvement of the above solution, the fill light adopts an LED light strip, and the mounting bracket is provided with a total of four LED light strips.

[0010] As an improvement of the above solution, a pair of parallel ribs are provided on the upper side of the base for centering the material tray, and the upper edges of the ribs are chamfered.

[0011] As an improvement of the above solution, the height of the camera from the base is 70-100 cm, and the length and width of the mounting bracket are both 50-60 cm.

[0012] The utility model has the following beneficial effects: the mounting bracket is annular, providing more positions for installing fill lights, so that the four sides of the base can be evenly illuminated, comprehensively reducing the blind spots of the material tray, which is conducive to improving the success rate of image recognition. The mounting bracket is installed on the cantilever in a liftable manner, and the two screws have a large enough span as the force points to ensure that the mounting bracket remains stable; and the mounting bracket can be adjusted in height as needed to adapt to material trays of different sizes, increasing the practicality of the scanner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a stereogram of a scanner under an embodiment;

[0014] Figure 2 is a cross-sectional view of a mounting bracket according to an embodiment.

[0015] Explanation of the reference numerals: 11, base; 12, column; 13, cantilever; 14, mounting bracket; 21, camera; 22, fill light; 23, light guide plate; 31, stud; 32, tightening knob. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0019] Reference Figure 1 and Figure 2 The utility model discloses a large area scanner, comprising: a base 11, a column 12, a cantilever 13 and a mounting bracket 14, wherein the base 11 is arranged horizontally for placing a material tray, the column 12 is vertically mounted on the edge of the base 11, and the cantilever 13 is horizontally mounted on the top of the column 12. The base 11 and the column 12 are fixed by an angle code, and similarly, the cantilever 13 and the column 12 are also fixed by an angle code. The cantilever 13 is provided with a camera 21, and the recognition direction of the camera 21 faces downward. The mounting bracket 14 is a quadrilateral frame shape and is open in the middle. The mounting bracket 14 is fixed to the cantilever 13 and surrounds the camera 21 in the middle. Fill-in lights 22 are provided at the bottom of the four sides of the mounting bracket 14, and the irradiation direction of the fill-in lights 22 faces downward and is aimed at the material tray.

[0020] As an improvement of the above solution, two screws are provided on the top of the mounting bracket 14, and the two screws pass through the cantilever 13. The two screws are provided with a tightening knob 32 for limiting the falling of the mounting bracket 14. The height of the mounting bracket 14 is changed by rotating the tightening knob 32. In this solution, the mounting bracket 14 is a steel section, and when the screw passes through the mounting bracket 14 from top to bottom, there are two fulcrums, thereby maintaining its own stability.

[0021] As an improvement of the above solution, the mounting bracket 14 is formed by splicing a plurality of guide rails with U-shaped cross sections end to end, the fill light 22 is placed in the guide rail, the upper surface of the mounting bracket 14 is provided with heat dissipation holes, and the mounting bracket 14 is provided with a light guide plate 23 below the fill light 22. With the above solution, the mounting bracket 14 is easy to assemble and has a low manufacturing cost.

[0022] As an improvement of the above solution, Figure 2 As shown, the light guide plate 23 is tilted toward the center of the base 11. The above solution is more conducive to focusing the light on the material tray.

[0023] As an improvement of the above solution, the fill light 22 adopts an LED light bar, and the mounting bracket 14 is provided with a total of four LED light bars, and each LED light bar is filled.

[0024] As an improvement of the above solution, a pair of parallel ribs are provided on the upper side of the base 11 for centering the material tray, and the upper edges of the ribs are chamfered. With the above solution, it is convenient for the user to place the material tray on the base 11, and the material tray is automatically centered.

[0025] As an improvement of the above scheme, the height of the camera 21 from the base 11 is 70-100 cm, and the length and width of the mounting bracket 14 are both 50-60 cm. Compared with conventional flat scanners, the camera 21 of this scanner is at a higher height, and the fill light 22 is provided in greater number, with greater brightness and a wider illumination range.

[0026] The mounting bracket 14 is annular, providing more positions for mounting the fill light 22, so that the four sides of the base 11 can be evenly illuminated, comprehensively reducing the blind spots of the material tray, which is conducive to improving the success rate of image recognition. The mounting bracket 14 is installed on the cantilever 13 in a liftable manner, and the two screws have a large enough span as the force points to ensure that the mounting bracket 14 remains stable; and the mounting bracket 14 can adjust the height as needed to adapt to material trays of different sizes, increasing the practicality of the scanner.

[0027] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A large area scanner, characterized in that: include: A base, a column, a cantilever and a mounting bracket, wherein the base is horizontally arranged for placing a material tray, the column is vertically installed on the edge of the base, the cantilever is horizontally installed on the top of the column, the cantilever is provided with a camera, the recognition direction of the camera is facing downward, the mounting bracket is in the shape of a quadrilateral frame and is open in the middle, the mounting bracket is fixed to the cantilever and surrounds the camera in the middle, the bottom of the four sides of the mounting bracket are provided with fill lights, and the illumination direction of several fill lights is facing downward.

2. The large area scanner according to claim 1, characterized in that: Two screw rods are arranged on the top of the mounting bracket, and the two screw rods pass through the cantilever. The two screw rods are provided with tightening knobs for limiting the falling of the mounting bracket. The height of the mounting bracket can be changed by rotating the tightening knobs.

3. The large area scanner according to claim 1, characterized in that: The mounting bracket is formed by splicing a plurality of guide rails with U-shaped cross sections end to end, the fill light is placed in the guide rails, the upper surface of the mounting bracket is provided with heat dissipation holes, and the mounting bracket is provided with a light guide plate below the fill light.

4. The large area scanner according to claim 3, characterized in that: The light guide plate is arranged obliquely toward the center of the base.

5. The large area scanner according to claim 4, characterized in that: The fill light adopts an LED light bar, and the mounting bracket is provided with a total of four LED light bars.

6. The large area scanner according to claim 1, characterized in that: A pair of parallel ribs are arranged on the upper side of the base for centering the material tray, and the upper edges of the ribs are arranged to be chamfered.

7. The large area scanner according to claim 1, characterized in that: The height between the camera and the base is 70-100 cm, and the length and width of the mounting bracket are both 50-60 cm.

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