Parcel detection device based on X-ray machine

Abstract

The invention discloses a parcel detection device based on an X-ray machine, and belongs to the technical field of parcel detection devices.The parcel detection device comprises a shell and a conveying belt penetrating through the shell, an X-ray scanning mechanism is installed in the shell, a hot-air blower is installed on the top wall of the shell, an air supply mechanism is installed on the top wall of an inner cavity of the shell, and an X-ray scanning mechanism is installed on the conveying belt; a thermal imager is mounted on the side wall of the shell; the air supply mechanism comprises an air supply box fixed in the shell, the air supply box is communicated with an air heater, the bottom of the air supply box is connected with an air outlet pipe, one end of the air outlet pipe is connected with an annular pipe, and a plurality of spray heads are arranged on the side, facing the conveying belt, of the annular pipe; according to the method, whether prohibited goods exist in the parcels or not and whether outer packages are damaged or not can be effectively detected, the detection effect is accurate, an operator can quickly obtain and process a result, and express sorting is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of package detection devices, and in particular to a package detection device based on an X-ray machine. Background Art

[0002] In recent years, thanks to the rapid development of e-commerce, the express delivery industry has ushered in explosive growth. While the industry is developing rapidly, it has also created tremendous pressure on express delivery security inspections. Before delivery and during transit, express parcels need to be pre-checked for prohibited items. Since the authenticity of the waybill information on the express parcels cannot be reliably guaranteed, for safety reasons, professional security inspectors are required to manually observe the X-ray images of each piece of cargo next to the X-ray machine to confirm whether the cargo is prohibited.

[0003] X-ray machines mainly use X-rays to detect the composition of items inside a package. Currently, most express deliveries are packaged in hard cardboard. However, during the sorting process, the outer packaging of the express delivery may be damaged due to logistics, weather, and manual operation. Cracks and openings may appear on the packaging. Damaged packaging can easily cause damage or leakage of items, and these cracks and openings are not obvious in X-ray imaging, so it is impossible to effectively detect whether the packaging is damaged. Summary of the invention

[0004] The purpose of the present invention is to provide a parcel detection device based on an X-ray machine to solve the following technical problems: the packaging of a parcel may be damaged due to logistics, weather and manual operation, and cracks and openings may appear on the packaging. The damaged packaging may easily cause damage or leakage of items, and these cracks and openings are not obvious in X-ray imaging, so it is impossible to effectively detect whether the package is damaged.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A package detection device based on an X-ray machine comprises a shell and a conveyor belt passing through the shell, an X-ray scanning mechanism is installed in the shell, a hot air blower is installed on the top wall of the shell, an air supply mechanism is installed on the top wall of the inner cavity of the shell, and a thermal imager is installed on the side wall of the shell; The air supply mechanism includes an air supply box fixed in the shell, the air supply box is connected to the hot air blower, the bottom of the air supply box is connected to an air outlet pipe, one end of the air outlet pipe is connected to an annular pipe, and a plurality of nozzles are arranged on one side of the annular pipe facing the conveyor belt; A fixing frame is fixed in the shell, first guide rods are symmetrically installed on the four inner walls of the fixing frame, a baffle is movably arranged between the two first guide rods on the same side, a spring is connected between the baffle and the fixing frame, first magnetic members are arranged on the four inner walls of the fixing frame, and a second magnetic member is arranged on the side wall of the baffle close to the fixing frame; Also included is an adjustment component for adjusting the position of the baffle.

[0006] As a further solution of the present invention: the adjustment component includes a plurality of second guide rods fixed on the bottom wall of the air supply box, and a movable frame is movably connected to the plurality of second guide rods, and a plurality of shielding plates are fixed to the bottom of the movable frame, and L-shaped rods are fixed to both side walls of the movable frame, and a force block is fixed to one end of the L-shaped rod, and a plurality of partition rods are evenly arranged on the surface of the conveyor belt along the length direction, and the partition rods are provided with chamfers, and a limiting block is provided at one end of the first guide rod and the second guide rod.

[0007] As a further solution of the present invention: the first magnetic member and the second magnetic member are both magnets, and the magnetism of the sides of the first magnetic member and the second magnetic member that are close to each other is opposite.

[0008] As a further solution of the present invention: a limiting rod is arranged on the side wall of the baffle close to the fixed frame.

[0009] As a further solution of the present invention: two ventilation holes are arranged on both side walls of the shell, a heat exchange box is fixed on the two L-shaped rods, two connecting holes are opened on the heat exchange box, a hose is connected to one side of the connecting hole, and the hose is connected to the ventilation hole.

[0010] As a further solution of the present invention: L-shaped mounting rods are fixed to the inner walls of both side walls of the shell, an I-shaped plate is fixed to one end of the mounting rod, and one side of the I-shaped plate is in contact with the side wall of the heat exchange box.

[0011] As a further solution of the present invention: two lifting plates are arranged in the shell, and the two lifting plates are respectively located on one side of the two heat exchange boxes, and guide grooves are installed on the side walls of the lifting plates, and guide blocks are movably connected in the guide grooves, and one end of the guide block is fixed on the inner wall of the shell, and racks are arranged on the side walls close to the lifting plates and the heat exchange boxes, and rotating shafts are rotatably installed on the inner walls on both sides of the shell, and a gear is installed on one end of the rotating shaft, and the gear is meshed with the two racks.

[0012] Beneficial effects of the present invention: (1) The present invention provides a hot air blower and an air supply mechanism. For packages packed in hard paper shells, the hot air blower is used to generate hot air to blow toward the packages. If the outer packaging of the package is damaged, the hot air can be visually observed in the thermal imager to enter the interior of the package, thereby judging whether the package is damaged. In addition, a baffle is provided, which cooperates with the adjustment mechanism and can be moved intermittently. When the baffle blocks the nozzle, the air pressure in the air supply box increases. When the package moves to the bottom of the nozzle and the baffle is removed, the hot air with increased air pressure is ejected through the nozzle. For packages with a small degree of damage, the air flow can also enter the interior of the package, thereby improving the accuracy of detection. (2) The adjustment mechanism of the present invention is composed of a movable frame, a fixed frame, a shielding plate, a first guide rod, a second guide rod and other structures. As the conveyor belt moves, the baffle plate can be driven to move automatically. The structure is simple and ingenious, which matches the transportation of the package and improves the detection efficiency. (3) The present invention provides a heat exchange box, a hose and other mechanisms to avoid heat accumulation inside the shell during long-term operation. The heat inside the shell can be absorbed and discharged, reducing the impact of high temperature on the package. The heat energy can also be recycled to reduce waste, save energy and protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 is a schematic diagram of the internal structure of a housing according to an embodiment of the present invention; Figure 3 is a structural schematic diagram of an air supply mechanism according to a first embodiment of the present invention; Figure 4 It is a structural schematic diagram of an air supply box, a movable frame and a fixed frame in a disassembled state according to a first embodiment of the present invention; Figure 5 is a structural schematic diagram of a fixing frame according to an embodiment of the present invention; Figure 6 is a schematic diagram of the overall structure of the second embodiment of the present invention; Figure 7 is a cross-sectional view of a second embodiment of the present invention; Figure 8 2 is a schematic diagram of the structure of the lifting plate and the heat exchange box from a first perspective according to the second embodiment of the present invention; Fig. 9 It is a schematic structural diagram of the lifting plate and the heat exchange box from a second viewing angle according to the second embodiment of the present invention.

[0015] In the figure: 1. shell; 2. conveyor belt; 3. X-ray scanning mechanism; 4. thermal imager; 5. hot air blower; 6. air supply mechanism; 601. air supply box; 602. air outlet pipe; 603. annular pipe; 604. nozzle; 605. second guide rod; 606. movable frame; 607. L-shaped rod; 608. force block; 609. shielding plate; 610. fixed frame; 611. first guide rod; 612. baffle; 613. spring; 614. second magnetic member; 615. first magnetic member; 616. limit rod; 7. partition rod; 8. ventilation hole; 9. heat exchange box; 10. hose; 11. mounting rod; 12. I-shaped plate; 13. lifting plate; 14. guide groove; 15. guide block; 16. rack; 17. rotating shaft; 18. gear; 19. connecting hole.

[0016] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1 to 5 As shown, the present invention is a package detection device based on an X-ray machine, comprising a housing 1 and a conveyor belt 2 passing through the housing 1, an X-ray scanning mechanism 3 is installed in the housing 1, a hot air blower 5 is installed on the top wall of the housing 1, an air supply mechanism 6 is installed on the top wall of the inner cavity of the housing 1, and a thermal imager 4 is installed on the side wall of the housing 1; the air supply mechanism 6 comprises an air supply box 601 fixed in the housing 1, the air supply box 601 is connected to the hot air blower 5, and the bottom of the air supply box 601 is connected to an air outlet pipe 602 , one end of the air outlet pipe 602 is connected to an annular pipe 603, and a plurality of nozzles 604 are arranged on the side of the annular pipe 603 facing the conveyor belt 2; a fixed frame 610 is fixed in the shell 1, and first guide rods 611 are symmetrically installed on the four inner walls of the fixed frame 610, and a baffle 612 is movably arranged between the two first guide rods 611 on the same side, and a spring 613 is connected between the baffle 612 and the fixed frame 610, and first magnetic Component 615, a second magnetic component 614 is provided on the side wall of the baffle 612 close to the fixed frame 610; it also includes an adjustment component for adjusting the position of the baffle 612; start the hot air blower 5, in the initial state, the baffle 612 blocks the nozzle 604, the hot air cannot be discharged, the air pressure in the air supply box 601 gradually increases, the package to be detected is sent into the shell 1 through the conveyor belt 2, the X-ray scanning mechanism 3 is used to scan the package first, and it is determined whether there are contraband in the package. When the package moves to the bottom of the annular tube 603, the adjustment component drives the baffle 612 to move away and no longer blocks the nozzle 604, and high-pressure hot air is blown to the package. If the outer packaging of the package is damaged, the hot air can be visually observed in the thermal imager 4 to enter the interior of the package, thereby determining whether the package is damaged. When the package detection is completed, the baffle 612 blocks the nozzle 604 again, waiting for the next package detection; it is worth noting that the X-ray scanning mechanism 3 is a prior art, and its specific structure is not repeated.

[0019] See also Figures 3 to 5 The adjusting component includes a plurality of second guide rods 605 fixed on the bottom wall of the air supply box 601, and a movable frame 606 is movably connected to the plurality of second guide rods 605. A plurality of shielding plates 609 are fixed to the bottom of the movable frame 606. L-shaped rods 607 are fixed to the two side walls of the movable frame 606, and a force block 608 is fixed to one end of the L-shaped rod 607. A plurality of partition rods 7 are evenly arranged on the surface of the conveyor belt 2 along the length direction, and chamfers are arranged on the partition rods 7. A limiting block is arranged at one end of the first guide rod 611 and the second guide rod 605; the first magnetic member 615 and the second magnetic member 614 are both magnets, and the magnetism of the side close to the first magnetic member 615 and the second magnetic member 614 is opposite; in the initial state, the plurality of shielding plates 609 are respectively located between the first magnetic member 615 and the second magnetic member 614 on the four sides, and the shielding plates 609 are made of aluminum or wood to isolate the first magnetic member 61 5 and the second magnetic member 614, under the action of the spring 613, the baffle 612 blocks the nozzle 604, the setting of multiple partition rods 7 can make the packages evenly distributed, and the partition rods 7 move with the conveyor belt 2, when the partition rod 7 contacts the force block 608, the force block 608 is lifted up, so that the L-shaped rod 607 and the movable frame 606 are lifted up, and the shielding plate 609 is lifted up synchronously to separate from the first magnetic member 615 and the second magnetic member 614, under the interaction of the first magnetic member 615 and the second magnetic member 614, the baffle 612 is away from the nozzle 604, the spring 613 is compressed, and the hot air is ejected through the nozzle 604, when the partition rod 7 is separated from the force block 608, the movable frame 606 and the shielding plate 609 descend, isolating the interaction between the first magnetic member 615 and the second magnetic member 614, under the action of the spring 613, the baffle 612 automatically resets to block and close the nozzle 604.

[0020] See also Figure 5 A limiting rod 616 is provided on the side wall of the baffle 612 close to the fixed frame 610; in order to prevent the first magnetic member 615 and the second magnetic member 614 from being completely adsorbed together, a limiting rod 616 is provided to limit the travel of the baffle 612 and the second magnetic member 614, so that there is still a certain gap between the first magnetic member 615 and the second magnetic member 614 after they are close to each other to accommodate the insertion of the shielding plate 609.

[0021] Embodiment 2: Based on the embodiment 1, in order to avoid excessive heat accumulation inside the housing 1 during long-term operation, in this embodiment, refer to Figures 6 to 9As shown, two ventilation holes 8 are arranged on both side walls of the shell 1, and heat exchange boxes 9 are fixed on the two L-shaped rods 607. Two connecting holes 19 are arranged on the heat exchange box 9, and a hose 10 is connected to one side of the connecting hole 19, and the hose 10 is connected to the ventilation holes 8; the heat exchange box 9 is arranged to be connected with the outside through the hose 10, so that hot air can be discharged to the outside through the hose 10, and an aqueous solution can be added into the heat exchange box 9 to absorb heat to reduce heat waste. The heat exchange box 9 is connected to an external water source through a pipeline, and the aqueous solution inside the heat exchange box 9 is regularly replaced to ensure the heat absorption effect.

[0022] See also Figure 7 , Figure 8 and Fig. 9 L-shaped mounting rods 11 are fixed to the inner walls of both side walls of the shell 1, and an I-shaped plate 12 is fixed to one end of the mounting rod 11, and one side of the I-shaped plate 12 is in contact with the side wall of the heat exchange box 9; by setting the I-shaped plate 12, when blowing, the heat exchange box 9 rises together with the L-shaped rod 607, and the I-shaped plate 12 blocks the connecting hole 19. When blowing, hot air will not be discharged to the outside of the shell 1, reducing interference with detection and ensuring the detection effect. After the blowing is completed, the heat exchange box 9 drops, and at this time, the hose 10 is connected to the outside to discharge the hot air, and the weight of the heat exchange box 9 can accelerate the descending speed of the L-shaped rod 607, so that the baffle 612 can be quickly reset, which is beneficial to the pressurization in the air supply box 601.

[0023] See also Figure 7 , Figure 8 and Fig. 9 Two lifting plates 13 are arranged in the shell 1, and the two lifting plates 13 are respectively located on one side of the two heat exchange boxes 9. A guide groove 14 is installed on the side wall of the lifting plate 13, and a guide block 15 is movably connected in the guide groove 14. One end of the guide block 15 is fixed on the inner wall of the shell 1, and racks 16 are arranged on the side walls close to the lifting plate 13 and the heat exchange box 9. A rotating shaft 17 is rotatably installed on the inner walls of both sides of the shell 1, and a gear 18 is installed at one end of the rotating shaft 17, and the gear 18 is meshed with the two racks 16; in order to prevent the light-weight packages from being blown and falling from the conveyor belt 2, the two lifting plates 13 will descend when blowing to block the packages and prevent them from falling.

[0024] Working principle of the present invention: For the current hard paper shell express packaging, when testing, first start the hot air blower 5. In the initial state, multiple shielding plates 609 are respectively located between the first magnetic member 615 and the second magnetic member 614 on the four sides to isolate the interaction between the first magnetic member 615 and the second magnetic member 614. Under the action of the spring 613, the baffle 612 blocks the nozzle 604, and the hot air cannot be discharged. The air pressure in the air supply box 601 gradually increases. The package to be tested is placed between the two partition rods 7 and sent into the shell 1 through the conveyor belt 2. The package is first scanned by the X-ray scanning mechanism 3 to determine whether the package is Whether there are contraband, when the package gradually moves toward the bottom of the annular tube 603, when the partition rod 7 contacts the force block 608, the force block 608 is lifted up, so that the L-shaped rod 607 and the movable frame 606 are lifted up, and the shielding plate 609 is simultaneously lifted up and separated from the first magnetic member 615 and the second magnetic member 614. Under the interaction of the first magnetic member 615 and the second magnetic member 614, the baffle 612 is away from the nozzle 604, the spring 613 is compressed, and hot air is ejected through the nozzle 604. If the outer packaging of the package is damaged, the hot air can be visually observed in the thermal imager 4 to enter the interior of the package, thereby judging whether the package is damaged; When the partition rod 7 gradually separates from the force block 608, the movable frame 606 and the shielding plate 609 descend to isolate the interaction between the first magnetic member 615 and the second magnetic member 614. Under the action of the spring 613, the baffle 612 automatically returns to block and close the nozzle 604, waiting for the next package detection. While blowing, the heat exchange box 9 rises together with the L-shaped rod 607, and the I-shaped plate 12 blocks the connecting hole 19. In the case of blowing, the hot air will not be discharged to the outside of the shell 1, reducing interference with the detection. After the blowing is completed, the heat exchange box 9 drops, and the hose 10 is connected to the outside to discharge the hot air. In addition, the weight of the heat exchange box 9 can accelerate the descending speed of the L-shaped rod 607, so that the baffle 612 can be quickly reset, which is beneficial to the pressurization in the air supply box 601. When the heat exchange box 9 rises with the L-shaped rod 607, under the action of the rack 16 and the gear 18, the two lifting plates 13 drop to prevent the small and light packages from being blown off; The package that has been inspected is moved out of the housing 1 along the conveyor belt 2, and the operator can process the package accordingly according to the inspection result.

[0025] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A package inspection device based on an X-ray machine, comprising a housing (1) and a conveyor belt (2) passing through the housing (1), wherein an X-ray scanning mechanism (3) is installed in the housing (1), characterized in that: A hot air blower (5) is mounted on the top wall of the shell (1), an air supply mechanism (6) is mounted on the top wall of the inner cavity of the shell (1), and a thermal imager (4) is mounted on the side wall of the shell (1); The air supply mechanism (6) comprises an air supply box (601) fixed in the housing (1), the air supply box (601) being connected to the hot air blower (5), an air outlet pipe (602) being connected to the bottom of the air supply box (601), an annular pipe (603) being connected to one end of the air outlet pipe (602), and a plurality of nozzles (604) being arranged on a side of the annular pipe (603) facing the conveyor belt (2); A fixing frame (610) is fixed inside the shell (1); first guide rods (611) are symmetrically mounted on the four inner walls of the fixing frame (610); a baffle (612) is movably arranged between two first guide rods (611) located on the same side; a spring (613) is connected between the baffle (612) and the fixing frame (610); first magnetic members (615) are arranged on the four inner walls of the fixing frame (610); and a second magnetic member (614) is arranged on the side wall of the baffle (612) close to the fixing frame (610); Also included is an adjustment assembly for adjusting the position of the baffle (612); The adjustment component comprises a plurality of second guide rods (605) fixed on the bottom wall of the air supply box (601), a movable frame (606) being movably connected to the plurality of second guide rods (605), a plurality of shielding plates (609) being fixed to the bottom of the movable frame (606), L-shaped rods (607) being fixed to both side walls of the movable frame (606), a force block (608) being fixed to one end of the L-shaped rod (607), a plurality of partition rods (7) being evenly arranged on the surface of the conveyor belt (2) along the length direction, the partition rods (7) being chamfered, and a limit block being arranged at one end of each of the first guide rod (611) and the second guide rod (605).

2. The X-ray machine-based package detection device according to claim 1, characterized in that: The first magnetic member (615) and the second magnetic member (614) are both magnets, and the magnetism of the sides of the first magnetic member (615) and the second magnetic member (614) that are close to each other are opposite.

3. The X-ray machine-based package detection device according to claim 2, characterized in that: A limiting rod (616) is provided on a side wall of the baffle (612) close to the fixing frame (610).

4. The X-ray machine-based package detection device according to claim 1, characterized in that: Two ventilation holes (8) are provided on both side walls of the shell (1), a heat exchange box (9) is fixed on the two L-shaped rods (607), two connecting holes (19) are provided on the heat exchange box (9), one side of the connecting hole (19) is connected to a hose (10), and the hose (10) is in communication with the ventilation hole (8).

5. The X-ray machine-based package detection device according to claim 4, characterized in that: An L-shaped mounting rod (11) is fixed to the inner walls of both side walls of the shell (1), an I-shaped plate (12) is fixed to one end of the mounting rod (11), and one side of the I-shaped plate (12) is in contact with the side wall of the heat exchange box (9).

6. The X-ray machine-based package detection device according to claim 5, characterized in that: Two lifting plates (13) are arranged in the shell (1), and the two lifting plates (13) are respectively located on one side of two heat exchange boxes (9). A guide groove (14) is installed on the side wall of the lifting plate (13), and a guide block (15) is movably connected in the guide groove (14). One end of the guide block (15) is fixed to the inner wall of the shell (1). Racks (16) are arranged on the side walls of the lifting plate (13) and the heat exchange box (9) that are close to each other. Rotating shafts (17) are rotatably installed on the inner walls of both sides of the shell (1), and a gear (18) is installed on one end of the rotating shaft (17), and the gear (18) is meshed with the two racks (16).

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