Improved X-ray detector

Abstract

The utility model provides an improved X-ray detector which is characterized in that a first slope channel is arranged in an inlet assembly, and an outlet of the first slope channel is communicated with an inlet of a detection channel; a first material sliding plate is laid in the first slope channel; a first shielding curtain is arranged at an inlet of the first slope channel, and a second shielding curtain is arranged at an outlet; a second slope channel is arranged in the outlet assembly, the height from an inlet of the second slope channel to the ground is larger than that from an outlet to the ground, and the inlet of the second slope channel communicates with an outlet of the detection channel; a second material sliding plate is laid in the second slope channel; a third shielding curtain is arranged at an inlet of the second slope channel, and a fourth shielding curtain is arranged at an outlet of the second slope channel. The technical problems that in the prior art, due to the fact that the gap between the lead curtain and the conveying belt is too small, light objects are blocked, and due to the fact that the gap between the lead curtain and the conveying belt is too large, X-rays leak are solved.

Description

Technical Field

[0001] This utility model relates to the field of physics, and more particularly to metal detection technology, especially an improved X-ray inspection machine. Background Technology

[0002] X-ray inspection machines use a high-voltage electric field to accelerate an electron beam and strike a metal target (such as a tungsten target), generating high-energy X-rays. When these rays penetrate the object being inspected, the degree of absorption varies due to differences in material density, thickness, and composition. The unabsorbed rays are projected onto the detector, converted into electrical signals, and generate digital images to identify foreign objects or defects in the product.

[0003] In the existing technology, X-ray inspection machines are usually protected against radiation by using lead curtains. To prevent X-ray leakage, the gap between the lead curtain and the conveyor belt is usually very small.

[0004] The existing X-ray inspection machine has the following problems:

[0005] 1. To prevent radiation leakage, the gap between the lead curtain and the conveyor belt is very small. The lead curtain itself contains lead, hangs down and has a certain weight. For very light test items (such as clothing), they will be blocked by the lead curtain during the transport process and cannot be transported effectively. If the gap between the lead curtain and the conveyor belt is too large, it may lead to X-ray leakage.

[0006] 2. Sometimes, depending on the wiring location, the conveying direction of the X-ray inspection machine needs to be interchanged. However, after the interchange, the structure of the inlet and outlet channel components will be different, which may result in the inability to convey the material to be inspected. Utility Model Content

[0007] The purpose of this invention is to provide an improved X-ray inspection machine. The entry and exit channel structure of this X-ray inspection machine solves the technical problems in the prior art where the gap between the lead curtain and the conveyor belt is too small, causing lightweight objects to be blocked, while the gap between the lead curtain and the conveyor belt is too large, which may lead to X-ray leakage.

[0008] An improved X-ray inspection machine includes an inspection machine body with a through inspection channel running from front to back, and a conveyor belt installed within the inspection channel. It includes an inlet assembly and an outlet assembly. The inlet assembly is installed at the inlet of the inspection channel, and the outlet assembly is installed at the outlet of the inspection channel. The inlet assembly contains a first ramp channel running from front to back, with the inlet of the first ramp channel being higher than the outlet of the first ramp channel, and the outlet of the first ramp channel communicating with the inlet of the inspection channel. A first sliding plate is laid at the bottom of the first ramp channel, and the outlet end of the first sliding plate is located at... Above the inlet end of the conveyor belt; a first shielding curtain is provided at the inlet of the first inclined channel, and a second shielding curtain is provided at the outlet end of the first inclined channel; a second inclined channel is provided inside the outlet assembly, which runs through the front and back, with the inlet of the second inclined channel being higher than the outlet being higher than the outlet, and the inlet of the second inclined channel being connected to the outlet of the detection channel; a second sliding plate is laid at the bottom of the second inclined channel, with the inlet end of the second sliding plate located below the outlet end of the conveyor belt; a third shielding curtain is provided at the inlet of the second inclined channel, and a fourth shielding curtain is provided at the outlet end of the second inclined channel.

[0009] Furthermore, a gap higher than the height of the transported item is provided between the bottom end of the first shielding curtain, the bottom end of the second shielding curtain and the first sliding plate, and a gap higher than the height of the transported item is also provided between the bottom end of the third shielding curtain, the bottom end of the fourth shielding curtain and the second sliding plate.

[0010] Furthermore, the angle between the first sliding plate, the second sliding plate and the horizontal plane is greater than 30°.

[0011] Furthermore, an extension plate is provided at the outer edge of the entrance of the first ramp passage.

[0012] Furthermore, when the inlet and outlet of the detection channel are interchanged, the inlet component and the outlet component can be installed interchangeably.

[0013] Compared with existing technologies, the advantages of this invention are positive and obvious:

[0014] 1. The ramp structure in the inlet and outlet components of this utility model blocks X-ray leakage, thereby allowing a larger gap between the shielding curtain and the conveyor belt, so that lighter objects can pass through without touching the shielding curtain.

[0015] 2. When the inlet and outlet of the detection channel of this utility model are interchanged, the inlet component and the outlet component can be installed interchangeably, which facilitates the conversion of the X-ray inspection machine's conveying direction. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an embodiment of this utility model.

[0017] Figure 2 An exploded structural diagram of an embodiment of this utility model.

[0018] Figure 3 A cross-sectional structural diagram of an embodiment of this utility model.

[0019] In the diagram: 1. Detection machine body; 101. Detection channel; 102. Conveyor belt; 2. Inlet assembly; 201. First inclined channel; 202. First sliding plate; 203. First shielding curtain; 204. Second shielding curtain; 205. Extension plate; 3. Outlet assembly; 301. Second inclined channel; 302. Second sliding plate; 303. Third shielding curtain; 304. Fourth shielding curtain; 4. X-ray emitting module; 5. X-ray receiving module. Detailed Implementation

[0020] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0021] like Figures 1 to 3 As shown, this embodiment provides an improved X-ray inspection machine, including an inspection machine body 1. The inspection machine body 1 has a through inspection channel 101, and a conveyor belt 102 is installed at the bottom of the inspection channel 101. An X-ray emitting module 4 is installed above the inspection channel 101 with its emitting end facing downwards. An X-ray receiving module 5 is installed below the inspection channel 101 with its receiving end facing upwards. When an item transported on the conveyor belt 102 passes through the X-ray emitting module 4, the X-ray emitting module 4 emits X-rays from its emitting end. After passing through the item, the X-rays are received by the receiving end of the X-ray receiving module 5, converted into electrical signals, and generate digital images to identify foreign objects or defects in the product.

[0022] The system includes an inlet component 2 and an outlet component 3. One side of the inlet component 2 is bolted to the inlet side of the inspection machine body 1, thus installing the inlet component 2 at the entrance of the inspection channel 101. One side of the outlet component 3 is bolted to the outlet side of the inspection machine body 1, thus installing the outlet component 3 at the exit of the inspection channel 101. The connection method between the inlet component 2 and the inspection machine body 1, and the connection structure between the outlet component 3 and the inspection machine body 1, are completely identical. Therefore, when the inlet and outlet of the inspection channel 101 need to be interchanged to change the transmission direction, the inlet component 2 and the outlet component 3 can be interchangeably installed on the inspection machine body 1, facilitating the conversion of the X-ray inspection machine's transmission direction.

[0023] The inlet component 2 is provided with a first ramp channel 201 that runs through the front and back. The height of the inlet of the first ramp channel 201 above the ground is higher than the height of its outlet above the ground. The outlet of the first ramp channel 201 is connected to the inlet of the detection channel 101. A first sliding plate 202 is laid at the bottom of the first ramp channel 201. The surface of the first sliding plate 202 is smooth, thereby reducing the friction when the object passes through. The outlet end of the first sliding plate 202 is located above the inlet end of the conveyor belt 102. Thus, the object slides from the inlet of the first ramp channel 201 along the first sliding plate 202 to the outlet of the first ramp channel 201 by its own gravity, and falls onto the conveyor belt 102 from the outlet of the first ramp channel 201 due to the inertia of the slide, thereby achieving the effect of object transmission.

[0024] A first shielding curtain 203 is installed at the entrance of the first ramp passage 201, and a second shielding curtain 204 is installed at the exit of the first ramp passage 201. The top edge of the first shielding curtain 203 is fixed to the top of the entrance of the first ramp passage 201, and the top edge of the second shielding curtain 204 is fixed to the top of the exit of the second ramp passage 201.

[0025] The outlet component 3 is provided with a second ramp channel 301 that runs through the front and back. The entrance of the second ramp channel 301 is higher than the exit of the second ramp channel 301. The entrance of the second ramp channel 301 is connected to the exit of the detection channel 101. A second sliding plate 302 is laid at the bottom of the second ramp channel 301. The surface of the second sliding plate 302 is smooth. The entrance end of the second sliding plate 302 is located below the exit end of the conveyor belt 102. Thus, the object falls from the exit of the conveyor belt 102 into the entrance of the second ramp channel 301 and slides along the second sliding plate 302 by its own gravity to the exit of the second ramp channel 301 to complete the unloading, thereby achieving the effect of object transmission.

[0026] A third shielding curtain 303 is suspended at the entrance of the second ramp passage 301, and a fourth shielding curtain 304 is suspended at the exit of the second ramp passage 301. The top edge of the third shielding curtain 303 is fixed to the top of the entrance of the second ramp passage 301, and the top edge of the fourth shielding curtain 304 is fixed to the top of the exit of the second ramp passage 301.

[0027] The first shielding curtain 203, the second shielding curtain 204, the third shielding curtain 303, and the fourth shielding curtain 304 are all heavy lead curtains. Large gaps are left between the bottom ends of the first shielding curtain 203 and the second shielding curtain 204 and the first sliding plate 202, as well as between the bottom ends of the third shielding curtain 303 and the fourth shielding curtain 304 and the second sliding plate 302, so that objects can pass through without touching the shielding curtains and avoid being blocked by the shielding curtains.

[0028] The angle between the first sliding plate 202 and the second sliding plate 302 and the horizontal plane is greater than 30°, which facilitates the generation of sufficient sliding speed when the object slides down, and avoids the object from getting stuck on the first sliding plate 202 or the second sliding plate 302 when it slides down.

[0029] Because X-rays travel in a straight line, in addition to the shielding curtain blocking X-rays, the slope of the first ramp channel 201 can also prevent X-rays from leaking out of the detection channel 101. Specifically, the height difference between the inlet and outlet of the first ramp channel 201, and the fact that the fourth shielding curtain 304 completely covers the outlet of the detection channel 101 from the rear view of the detection machine body 1, can prevent the leakage of X-rays that travel in a straight line. This allows for a larger gap below the shielding curtain in this embodiment, facilitating the passage of objects.

[0030] An extension plate 205 is installed on the outer edge of the entrance of the first ramp channel 201, making it easier for objects to enter the entrance of the first ramp channel 201. The entrance of the first ramp channel 201 and the exit of the second ramp channel 301 can also be connected to other conveyor belts 102, thereby enabling this embodiment to be integrated into an assembly line.

[0031] The main body of the inspection machine 1, its inspection channel 101, conveyor belt 102, X-ray emission module 4 and X-ray receiving module 5, all adopt well-known technical solutions or products in the prior art.

[0032] How to use this embodiment:

[0033] 1. The object to be tested is fed into the first inclined channel 201. The object slides along the first sliding plate 202 from the entrance of the first inclined channel 201 to the exit of the first inclined channel 201 by its own gravity, and falls onto the conveyor belt 102 from the exit of the first inclined channel 201 due to the inertia of sliding.

[0034] 2. Items transported on conveyor belt 102 are inspected by X-ray emission module 4.

[0035] 3. The object falls from the outlet of the conveyor belt 102 into the inlet of the second ramp channel 301, and slides along the second sliding plate 302 under its own gravity to the outlet of the second ramp channel 301 to complete the unloading.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An improved X-ray inspection machine, comprising an inspection machine body (1), wherein the inspection machine body (1) is provided with a front-to-back through inspection channel (101), and a conveyor belt (102) is provided in the inspection channel (101); characterized in that: It includes an inlet component (2) and an outlet component (3); the inlet component (2) is installed at the inlet of the detection channel (101), and the outlet component (3) is installed at the outlet of the detection channel (101); The inlet component (2) is provided with a first ramp channel (201) that runs through the front and back. The height of the inlet of the first ramp channel (201) from the ground is higher than the height of the outlet from the ground. The outlet of the first ramp channel (201) is connected to the inlet of the detection channel (101). A first sliding plate (202) is laid at the bottom of the first ramp channel (201). The outlet end of the first sliding plate (202) is located above the inlet end of the conveyor belt (102). A first shielding curtain (203) is provided at the inlet of the first ramp channel (201), and a second shielding curtain (204) is provided at the outlet of the first ramp channel (201). The outlet component (3) is provided with a second ramp channel (301) that runs through the front and back. The height of the entrance of the second ramp channel (301) from the ground is higher than the height of the exit from the ground. The entrance of the second ramp channel (301) is connected to the exit of the detection channel (101). A second sliding plate (302) is laid at the bottom of the second ramp channel (301). The entrance end of the second sliding plate (302) is located below the exit end of the conveyor belt (102). A third shielding curtain (303) is provided at the entrance of the second ramp channel (301), and a fourth shielding curtain (304) is provided at the exit of the second ramp channel (301).

2. An improved X-ray inspection machine according to claim 1, characterized in that: A gap higher than the height of the transported item is provided between the bottom end of the first shielding curtain (203), the bottom end of the second shielding curtain (204) and the first sliding plate (202), and a gap higher than the height of the transported item is also provided between the bottom end of the third shielding curtain (303), the bottom end of the fourth shielding curtain (304) and the second sliding plate (302).

3. An improved X-ray inspection machine according to claim 1, characterized in that: The angle between the first sliding plate (202), the second sliding plate (302) and the horizontal plane is greater than 30°.

4. An improved X-ray inspection machine according to claim 1, characterized in that: An extension plate (205) is provided on the outer edge of the entrance of the first ramp passage (201).

5. An improved X-ray inspection machine according to claim 1, characterized in that: When the inlet and outlet of the detection channel (101) are interchanged, the inlet component (2) and the outlet component (3) can be installed interchangeably.

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