Large fruit X-ray detection fixing device

Abstract

The invention relates to a large fruit X-ray detection fixing device which is used for fixing a fruit when the fruit is subjected to X-ray detection and comprises a central stand column and a tray. The tray is arranged at one end of the center stand column and comprises a supporting arm and a plurality of fixing plates. The multiple fixing plates are installed on the supporting arm in parallel in the same direction, and each fixing plate is provided with multiple fixing cones in the length direction of the fixing plate. Compared with the prior art, the durian detector has the advantages that the durian detector adopts a hollow design, so that unnecessary shadows on the X light source and the camera can be effectively avoided, and the influence on effective detection of the durian state is avoided; meanwhile, the durian tray is high in outside and low in inside, the durian can be automatically centered as much as possible, the fruits can be protected from displacement in the conveying and rotating detection process to the maximum extent, and the stability of detection imaging is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food detection, in particular to a large fruit X-ray detection fixing device. BACKGROUND

[0002] Before large fruits such as durians are formally sold, their appearance and maturity need to be detected to determine conditions such as insect fruits, maturity, quality, moldy fruits, etc.

[0003] The existing durian internal quality detection system disclosed in Chinese patent CN202311681758.1 places durians on a rotating table, which is driven by a material carrying conveyor belt through an X-ray detection device for non-destructive detection of the internal quality of durians. However, for irregularly shaped oval large fruits such as durians, it is difficult to maintain balance on the moving rotating platform, and it is easy to roll. The size and shape of different durian individuals differ greatly, resulting in unstable X-ray imaging obtained by the above-mentioned scheme.

[0004] The technical solution disclosed in Chinese patent application CN202220736802.9 considers the impact of tray residual image on fruit imaging, and adjusts the thickness of the tray. However, in order to ensure the supporting effect, the conical tray needs to be provided with a slanting support plate, which has a large lateral projection area. When the X-ray machine scans from the side, a large area of shadow will be produced on the X-ray image, affecting the detection effect. Moreover, the patent application does not involve rotating detection of fruits. If the conical tray is used for rotation, the fruits and the inner wall of the tray are prone to sliding due to the lack of effective fixing structure, causing detection deviation. SUMMARY

[0005] The purpose of the present application is to overcome the defects of the prior art and provide a large fruit X-ray detection fixing device.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] A large fruit X-ray detection fixing device for fixing fruits during X-ray detection of fruits, the fixing device comprising a central column and a tray; the tray is arranged at one end of the central column and comprises a support arm and a plurality of fixing plates;

[0008] The plurality of fixing plates are installed in parallel along the same direction on the support arm, and each fixing plate is provided with a plurality of fixing cones along the length direction thereof;

[0009] During X-ray detection, the large fruit fixing device is arranged in a posture in which the length direction of the fixing plate is parallel to the direction of incoming detection X-rays.

[0010] As a preferred technical solution, for the same fixing plate, the vertical height of the fixing cone located at the edge of the fixing plate is higher than that of the fixing cone located at the center of the fixing plate.

[0011] As a preferred technical solution, for different fixing plates, the vertical height of the fixing cone on the fixing plate farther from the central column is higher than that of the fixing cone on the fixing plate closer to the central column.

[0012] As a preferred technical solution, the number of fixing cones installed on the fixing plate near the central column is greater than the number of fixing cones installed on the fixing plate far from the central column.

[0013] As a preferred technical solution, the spacing between the fixed cones near the edge of the pallet is smaller than the spacing between the fixed cones near the center column.

[0014] As a preferred technical solution, the support arm is fixed to the top of the central column by welding.

[0015] As a preferred technical solution, the support arm is detachably fixed to the top of the central column by bolts.

[0016] As a preferred technical solution, the support arm is a telescopic multi-section support arm with multiple length positions and is equipped with pins for fixing the positions.

[0017] As a preferred technical solution, a base is provided at the end of the central column away from the tray.

[0018] As a preferred technical solution, the base is provided with multiple fixing holes for fixing the fruit fixing device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) The present invention designs a fixing plate consisting of a mounting strip and multiple vertically arranged fixing cones (31) on the mounting strip, and sets the axial direction of the mounting strip parallel to the output light of the X-ray source. Thus, on the imaging surface perpendicular to the X-ray, the projection area of ​​the fixing plate can be reduced while meeting the requirements for fixing the fruit. This can effectively avoid causing unnecessary shadows to the X-ray source and the camera, thus affecting the effective detection of the durian's condition.

[0021] 2) The durian plate designed in this invention has a higher outer edge and a lower inner edge, which allows the durian to automatically return to the center as much as possible, preventing it from shifting during the rotational X-ray detection process and ensuring the stability of the detection imaging. Attached Figure Description

[0022] Figure 1 This is a perspective view of a large fruit fixing device according to the present invention;

[0023] Figure 2 This is a front view of a large fruit fixing device according to the present invention;

[0024] The numbers in the diagram indicate: 1. Central column, 2. Support arm, 3. Fixing plate, 31. Fixing cone, 4. Base. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0026] Example 1

[0027] like Figure 1 As shown, the entire large fruit fixing device consists of a central column 1, a tray, and a base 4. The tray includes a support arm 2 and multiple fixing plates 3 fixed to the support arm 2. The support arm 2 can be detachably fixed to the top of the central column 1 by welding or bolts. Multiple fixing plates 3 are installed parallel to each other on the support arm 2 in the same direction, and each fixing plate 3 has multiple fixing cones 31 arranged along its length.

[0028] like Figure 2 As shown, for the same fixing plate 3, the height of the fixing cone 31 located at the edge is higher than that of the fixing cone 31 located at the center. Between different fixing plates 3, the fixing cone 31 on the fixing plate 3 furthest from the central column 1 is higher than that on the fixing plate 3 closest to the central column 1. The top of the fixing cone 31 is provided with a rounded chamfer to avoid piercing the fruit.

[0029] The fixing plate 3 can be made of polyetheretherketone (PEEK) or aluminum alloy, which has good X-ray transmittance, reduces the shadow effect of the support, and avoids interference with imaging.

[0030] In a preferred embodiment, the length of the fixing plate 3 near the central column 1 is greater than the fixing cone 31 provided on the fixing plate 3 away from the central column 1, and the number of fixing cones 31 provided on the fixing plate 3 is also greater than the number of fixing cones 31 provided on the fixing plate 3 away from the central column 1, so as to match the oval shape of the fruit, so that it can lie horizontally in the tray and further prevent it from rolling.

[0031] As a preferred embodiment, the spacing between the fixing cones 31 near the edge of the tray is smaller than the spacing between the fixing cones 31 near the central column 1, so as to strengthen the fixed support of the edge of the tray and prevent the fruit from shifting during the movement and rotation process.

[0032] As a preferred embodiment, the thickness of the fixed plate 3 is 3-5mm, and the thickness of the fixed plate 3 close to the center column 1 is thinner than the fixed plate 3 far from the center column 1. The thickness of the fixed cone 31 close to the support arm 2 is thicker than the thickness far from the support arm 2, and the projection area of the tray and the fruit in the transverse direction is reduced without affecting the stability of the support.

[0033] When the fruit detection device is used, the large fruit fixing device needs to be adjusted to a position where the length direction of the fixed plate 3 is parallel to the X-ray injection direction. At this time, the area of the tray in the X-ray detection direction is the smallest, which can effectively avoid unnecessary shadows on the X-ray source and the camera.

[0034] The bottom of the center column 1 has a base 4, and the base 4 is provided with a plurality of fixing holes for detachably fixing the whole fruit fixing structure on the conveying belt or the lifting rotating platform.

[0035] The fruit fixing tray provided by the application adopts a hollow design, which can effectively avoid unnecessary shadows on the X-ray source and the camera, so as to affect the effective detection of the durian state. At the same time, the outer part of the durian tray is high and the inner part is low, so as to make the durian automatically center as much as possible. The special fruit fixing tray design can maximize the protection of the fruit from displacement during transmission and rotation detection, and ensure the stability of the detection imaging.

[0036] Example 2

[0037] As another embodiment of the application, the difference between this embodiment and example 1 is that the support arm 2 adopts a telescopic multi-section design, has multiple length gears, and selects and fixes the gears through a latch. The distance between the adjacent two fixed plates 3 can be adjusted according to the need to adapt to different sizes and types of fruits.

[0038] The above describes the preferred embodiment of the application in detail. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the application should be within the protection scope determined by the claims.

Claims

1. A large fruit X-ray inspection fixing device for fixing a fruit when the fruit is subjected to X-ray inspection, characterized by, The fixing device comprises a central column (1) and a tray; the tray is arranged at one end of the central column (1), and the tray comprises a support arm (2) and a plurality of fixing plates (3) arranged above the support arm (2); All the fixing plates (3) are arranged in parallel, and the fixing plates (3) comprise a mounting strip and a plurality of vertically arranged fixing cones (31) arranged on the mounting strip, and the axis direction of the mounting strip is arranged in parallel with the output light of the X-ray source.

2. The large fruit X-ray inspection fixture of claim 1, wherein, For the same fixing plate (3), the vertical height of the fixing cone (31) located at the edge of the fixing plate (3) is higher than that of the fixing cone (31) located at the center of the fixing plate (3).

3. The large fruit X-ray inspection fixture of claim 1, wherein, For different fixing plates (3), the vertical height of the fixing cone (31) on the fixing plate (3) away from the central column (1) is higher than that of the fixing cone (31) on the fixing plate (3) close to the central column (1).

4. The large fruit X-ray inspection fixture of claim 1, wherein, The number of the fixing cones (31) arranged on the fixing plate (3) close to the central column (1) is more than that of the fixing cones (31) arranged on the fixing plate (3) away from the central column (1).

5. The large fruit X-ray inspection fixture of claim 1, wherein, The spacing between the fixing cones (31) close to the edge of the tray is smaller than the spacing between the fixing cones (31) close to the central column (1).

6. The large fruit X-ray inspection fixture of claim 1, wherein, The support arm (2) is fixed to the top of the central column (1) by welding.

7. The large fruit X-ray inspection fixture of claim 1, wherein, The support arm (2) is detachably fixed to the top of the central column (1) by bolts.

8. The large fruit X-ray inspection fixture of claim 1, wherein, The support arm (2) is a telescopic multi-section support arm with a plurality of length gears and is provided with a latch for gear fixing.

9. The large fruit X-ray inspection fixture of claim 1, wherein, The end of the central column (1) away from the tray is provided with a base (4).

10. The large fruit X-ray inspection fixture of claim 9, wherein, The base (4) is provided with a plurality of fixing holes for fixing the fruit fixing device.

Images