Automatic sampling system

Abstract

The invention relates to the technical field of sampling systems, in particular to an automatic sampling system which comprises an unloading container used for loading and unloading grain; the sampling opening is formed in the side wall of the unloading container; the plugging piece is used for plugging the sampling opening; the PLC control part is used for controlling the opening and closing of the plugging piece; and the packaging assembly is used for packaging the sampled product, and the packaging assembly is located below the sampling opening. The grain sampling device has the advantages that grain sampling is facilitated, time accuracy in the sampling process is improved, and customs requirements are met.

Description

Technical Field

[0001] The present application relates to the technical field of sampling systems, and in particular to an automatic sampling system. Background Art

[0002] my country imports more than 100 million tons of grain each year, of which more than 95% are transported to Chinese ports in the form of bulk carriers. Since customs currently need to take samples of imported goods regularly, how to quickly and accurately collect and prepare samples is an important prerequisite and basis for customs to carry out inspection and quarantine supervision and trade delivery acceptance inspection.

[0003] At present, most of the sampling is done manually, and the staff needs to take samples at the specified time. According to the sampling rules, the sampling method for bulk ships is: no less than 50 sampling points are set for every 1,000 tons, and the weight is no less than 8kg, that is, 160-200g / point. For example, for 60,000 tons of bulk grain, at least 3,000 points need to be evenly sampled, and the original sample is at least 480kg.

[0004] The existing sampling method is manual sampling, which results in inaccurate sampling time and is difficult to meet customs requirements. There is room for improvement. Summary of the invention

[0005] In order to facilitate the sampling of grain, improve the accuracy of sampling time, and meet the sampling requirements of customs, the present application provides an automatic sampling system.

[0006] The present application provides an automatic sampling system, which adopts the following technical solution: an automatic sampling system, comprising: A cargo unloading container, wherein the cargo unloading container is used for loading and unloading grain; A sampling port, the sampling port being located on a side wall of the unloading container; A blocking member, the blocking member is used to block the sampling port; A PLC control component, the PLC control component controls the opening of the blocking member; a packaging component, the packaging component is used to package the sampled product, and the packaging component is located below the sampling port.

[0007] By adopting the above technical scheme, the unloading container is used to load grain, which is convenient for loading and unloading grain. When sampling is required, an electrical signal is transmitted to the PLC control component, and the PLC control component controls the opening of the blocking component. The grain in the unloading container falls through the sampling port, and the sampling of the grain is completed. After the sampling is completed, the blocking component blocks the sampling port, and the packaging component seals the sample taken out. The opening and closing of the blocking component is controlled by the PLC control component, which makes the sampling of grain more convenient and facilitates the control of the sampling time, so that the sampling of grain meets the needs of the customs.

[0008] Optionally, it also includes a carrying frame, the unloading container is mounted on the carrying frame, a bag-supporting frame is slidably connected to the carrying frame, the bag-supporting frame is located below the sampling port, and a driving member is provided on the carrying frame for driving the bag-supporting frame to slide toward the sampling port.

[0009] By adopting the above technical solution, before sampling, the staff will pre-set the packaging bags for sampling on the bag support rack, and the batches of packaging bags will be set together. When sampling is required, the driving member is started, and the driving member drives the bag support rack to slide toward the sampling port, so that the sample can fall into the packaging bag during the sampling process.

[0010] Optionally, a weighing device for weighing the sample is provided on the carrier frame, and the weighing device is located below the sampling port.

[0011] By adopting the above technical solution, after the sample is put into the packaging bag, the packaging bag containing the sample is placed on a weighing device, and the weighing device weighs the weight of the sample, which is convenient for weighing the weight of the sample.

[0012] Optionally, a sliding frame is slidably connected to the supporting frame, the weighing device is arranged on the sliding frame, and the supporting frame is provided with a power member for driving the sliding frame to slide below the sampling port.

[0013] By adopting the above technical solution, after the sample is loaded into the packaging bag, the power part is turned on, and the power part drives the sliding frame to slide toward the bottom of the sampling port, driving the weighing device to move to the bottom of the packaging bag. After the clamping block releases the packaging bag, the packaging bag containing the sample falls onto the weighing device, which is more convenient for weighing the sample.

[0014] Optionally, a support is fixed on the side wall of the sliding frame, and a heat sealing device is installed on the support.

[0015] By adopting the above technical solution, after the packaging bag containing the sample falls onto the weighing device, the support limits the position of the packaging bag, making the placement of the packaging bag on the weighing device more stable; the heat sealing device heat-seals and bonds the opening of the packaging bag to fix it, and the setting of the heat sealing device facilitates the packaging of the packaging bag.

[0016] Optionally, a guide rail is fixed on the carrier frame, a transport vehicle is slidably connected to the guide rail, a transfer clamp is provided on the transport vehicle, and the transfer clamp is used to clamp the packaging bag.

[0017] By adopting the above technical solution, after the packaging bag containing the sample is sealed, the transport vehicle slides along the length direction of the guide rail, driving the transfer clamp to move to a position close to the packaging bag. The transfer clamp clamps the packaging bag and transports the packaging bag to the corresponding position.

[0018] Optionally, the sealing member includes a cylinder fixed to the inner wall of the sampling port, a material guide shell movably connected to the inner wall of the cylinder, and a sealing plate covering the opening of the cylinder, a U-shaped groove is provided on the outer wall of the cylinder, a driving rod is slidably connected to the inner wall of the U-shaped groove, the driving rod is fixedly connected to the material guide shell, and a second driving member for driving the driving rod to slide along the inner wall of the U-shaped groove is provided on the outer wall of the cylinder.

[0019] By adopting the above technical solution, before each sampling, the second driving member is started, the second driving member drives the driving rod to move, and the driving rod drives the material guide shell to slide toward the unloading device, so that the material guide shell moves in the unloading container, which is convenient for sampling at different depths in the funnel.

[0020] Optionally, a sampling monitoring probe is installed on the side wall of the support frame, and the sampling monitoring probe is located close to the sampling port.

[0021] By adopting the above technical solution, the setting of the sampling monitoring probe is convenient for monitoring the sampling process and provides convenience for the staff.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. When sampling is required, an electrical signal is provided to the PLC control component, which controls the opening of the blocking piece, and the grain in the unloading container falls through the sampling port for sampling. Manual sampling is not required, which facilitates the control of sampling, thereby improving the accuracy of the sampling time and meeting the requirements of the customs.

[0023] 2. When the grain needs to be put into the packaging bag during the sampling process, the bag support frame slides toward the sampling port so that the packaging bag on the bag support frame is close to the sampling port, making it easier to put the sample into the packaging bag.

[0024] 3. After the sample is put into the packaging bag, turn on the power piece, the power piece drives the sliding frame to slide, and the sliding frame drives the weighing device to move to the bottom of the sampling port. At this time, the packaging bag containing the sample is placed on the weighing device for weighing, which provides convenience for the weighing of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the automatic sampling system in Example 1 of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the unloading container in the first embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the overall structure of the automatic sampling system in Example 2 of the present application.

[0028] Figure 4It is a cross-sectional view of the cylindrical portion in the second embodiment of the present application, used to show the structure of the material guide shell.

[0029] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0030] Figure 6 It is a schematic diagram of the structure of the guide rail portion in an embodiment of the present application.

[0031] Figure numerals: 1. unloading container; 2. sampling port; 3. sealing member; 4. PLC control component; 6. carrying frame; 7. bag support frame; 9. driving member; 81. fixing frame; 82. clamping block; 10. annular groove; 11. adsorption hole; 12. sliding groove; 15. piston; 17. weighing device; 18. sliding frame; 19. power member; 20. support; 21. heat sealing device; 22. guide rail; 23. transport vehicle; 24. transfer clamp; 25. cylinder; 26. material guide shell; 27. sealing piece; 30. U-shaped groove; 31. driving rod; 32. second driving member; 33. sampling monitoring probe; 34. feed cover; 35. feed hole; 36. sealing leaf. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] Embodiment 1, Embodiment 1 of the present application discloses an automatic sampling system.

[0034] Reference Figure 1 An automatic sampling system includes a carrier frame 6 and a discharge container 1 arranged on the carrier frame 6. In the present application, the discharge container 1 is preferably a large funnel. The discharge container 1 is installed on the carrier frame 6. After the grain is poured into the discharge container 1, it falls through the discharge port of the discharge container 1, which is convenient for unloading and bagging of a large amount of grain.

[0035] Reference Figure 1 and Figure 2 A sampling port 2 is provided on the side wall of the unloading container 1, and the opening of the sampling port 2 faces downward. A blocking member 3 for blocking the sampling port 2 is provided on the side wall of the unloading container 1. In the embodiment of the present application, the blocking member 3 is a blocking piece 27 plugged and fixed on the side wall of the unloading container 1. An electric cylinder for driving the blocking member 3 to slide is provided on the side wall of the unloading container 1. The piston rod of the electric cylinder is fixedly connected to the side wall of the blocking member 3 by a connecting rod. When the electric cylinder is started, the piston rod of the electric cylinder slides, driving the blocking member 3 to slide, thereby controlling the blocking member 3 to block the sampling port 2.

[0036] Reference Figure 2A PLC control component 4 is provided on the carrier 6. The PLC control system is connected to the control computer in the staff control room. The PLC control component 4 is connected to the electric cylinder electrical signal. When the sampling port 2 needs to be opened, the control signal is input to the control computer, and the control computer inputs an electrical signal to the PLC control component 4. Under the control of the PLC control component 4, the electric cylinder is energized, and the electric cylinder drives the blocking member 3 to open.

[0037] Reference Figure 1 A sampling monitoring probe 33 is installed on the side wall of the carrier 6. The sampling monitoring probe 33 is located near the sampling port 2. The sampling monitoring probe 33 is connected to the control computer of the staff. The setting of the sampling monitoring probe 33 monitors the sampling process of the grain, which is convenient for the staff to obtain the sampling situation of the sample.

[0038] In the first embodiment of the present application, the implementation principle of an automatic sampling system is as follows: when the grain transported to the dock needs to be unloaded, the grain is loaded into the unloading container 1, and the grain falls from the lower outlet of the unloading container 1 to be loaded; when sampling is needed, the staff inputs a control signal into the control computer, and the control computer inputs an electrical signal to the PLC control component 4 as needed, and the PLC control component 4 controls the action of the electric cylinder, and the electric cylinder drives the blocking member 3 to move, so that the sampling port 2 is in an open state, and the grain in the unloading container 1 falls through the sampling port 2, which is convenient for sampling. The setting of the PLC control component 4 is convenient for controlling the opening of the blocking member 3, which is convenient for sampling at any time, and a signal can be input to the PLC control component 4 according to the sampling time requirements, thereby facilitating the sampling time requirements of the customs.

[0039] Embodiment 2: The difference from the first embodiment is that: Figure 3 Figure 4 The sealing member 3 includes a cylinder 25 welded and fixed to the inner wall of the sampling port 2, a material guide shell 26 slidably connected to the inner wall of the cylinder 25, and a sealing piece 27 covering the outlet of the cylinder 25. When the sealing piece 27 is opened, the grain in the unloading container 1 falls from the outlet of the cylinder 25 through the material guide shell 26, which is convenient for sampling.

[0040] Reference Figure 4 A U-shaped groove 30 is provided on the side wall of the cylinder 25, and the U-shaped groove 30 is provided along the length direction of the cylinder 25. The driving rod 31 is slidably connected to the inner wall of the U-shaped groove 30. A second driving member 32 for driving the driving rod 31 to slide is provided on the outer wall of the cylinder 25. In the present application, the second driving member 32 is preferably a driving cylinder. The piston rod of the second driving member 32 is fixed to the driving rod 31 by a connecting rod. When the second driving member 32 is started, the piston rod of the second driving member 32 slides, thereby driving the driving rod 31 to slide.

[0041] Reference Figure 3 and Figure 4A feed cover 34 is welded and fixed on the inner wall of the material guide shell 26, and a plurality of feed holes 35 are opened on the side wall of the feed cover 34. A blocking leaf 36 is rotatably connected to the inner wall of the material guide shell 26. The setting of the blocking leaf 36 has a blocking effect on the feed hole 35. A driving motor for driving the blocking leaf 36 to rotate is provided on the inner wall of the material guide shell 26. The driving motor is electrically connected to the PLC control component 4. The rotating shaft of the driving motor is coaxially fixed with the blocking leaf 36. The driving motor is started, and the rotating shaft of the driving motor rotates, driving the blocking leaf 36 to rotate. When the blocking leaf 36 blocks the feed hole 35, it plays a blocking role to prevent food from entering the material guide shell 26. When the material guide shell 26 slides to the corresponding sampling position, the driving motor drives the blocking leaf 36 to rotate, so that the feed hole 35 is opened, and the food in the unloading container enters the material guide shell 26 through the feed hole 35.

[0042] Reference Figure 5 A bag support frame 7 is slidably connected to the support frame 6 in the height direction. The bag support frame 7 is located below the sampling port 2. The bag support frame 7 is used to support and fix a new packaging bag for loading and taking samples. A driving member 9 is provided on the support frame 6 for driving the bag support frame 7 to slide toward the sampling port 2. In the present application, the driving member 9 is preferably a cylinder. The piston rod of the driving member 9 is fixed to the side wall of the bag support frame 7 by a connecting rod. When the driving member 9 is started, the piston rod of the driving member 9 slides, thereby driving the bag support frame 7 to slide.

[0043] Reference Figure 5 The side wall of the carrier frame 6 is slidably connected with a sliding frame 18, and the sliding frame 18 slides in the horizontal direction. Figure 6 A weighing device 17 is provided on the side wall of the sliding frame 18. In the present application, the weighing device 17 is preferably an electronic scale. The signal of the weighing device 17 is output to the control computer of the staff. A power part 19 for driving the sliding frame 18 to slide toward the bottom of the sampling port 2 is provided on the side wall of the supporting frame 6. In the present application, the power part 19 is preferably a driving cylinder. The piston rod of the power part 19 is fixedly connected to the side wall of the sliding frame 18 by a connecting rod. When the power part 19 is turned on, the piston rod of the power part 19 slides, thereby driving the sliding frame 18 to slide.

[0044] Reference Figure 6 A support 20 is fixed to the side wall of the sliding frame 18 by bolts, and a packaging component for packaging the packaging bag is arranged on the support 20. The packaging component is a heat sealing device 21 installed on the side wall of the support 20. The heat sealing device 21 in the present application is a hot melt packaging device. After the sample is installed in the packaging bag, the packaging bag is loosened, and the packaging bag falls onto the weighing device 17 under the action of its own gravity. The support 20 plays a limiting role to reduce the possibility of the packaging bag falling. The weighing device 17 weighs the weight of the sample taken, and starts the heat sealing device 21. The heat sealing device 21 hot-melt seals the opening of the packaging bag to facilitate the packaging of the packaging bag.

[0045] Reference Figure 6 A guide rail 22 is fixed to the carrier frame 6 by bolts, a transport trolley 23 is installed on the guide rail 22, a transfer clamp 24 is installed on the transport trolley 23, and the transfer clamp 24 is installed on the transport trolley 23 through a take-up roller. After the packaging bag is packaged, the transfer clamp 24 extends to the sealing portion of the packaging bag to clamp the packaging bag, and then the transport trolley 23 rolls on the guide rail 22 to transfer the sample to the set position.

[0046] In the second embodiment of the present application, the implementation principle of an automatic sampling system is as follows: the packaging bag is pre-supported on the bag supporting frame 7. When sampling is required, the bag supporting frame 7 slides toward the fixing frame 81 so that the edge of the packaging bag is stuck in the annular groove 10, and the adsorption hole 11 absorbs the outer packaging bag. In the process of the bag supporting frame 7 moving away from the fixing frame 81, the adsorbed packaging bag is fixed on the fixing frame 81, and then the clamping block 82 slides to clamp and fix the edge of the packaging bag in the annular groove 10, and then the blocking piece 27 is opened to drive the material guide shell 26 to slide into the inner cavity of the unloading container, and the grain falls into the packaging bag through the outlet of the material guide shell 26 and the cylinder 25, thereby completing the sampling.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic sampling system, characterized in that: include, A cargo unloading container (1), wherein the cargo unloading container (1) is used for loading and unloading grain; A sampling port (2), the sampling port (2) being located on a side wall of the unloading container (1); A blocking member (3), the blocking member (3) being used to block the sampling port (2); A PLC control component (4), wherein the PLC control component (4) controls the opening of the blocking member (3); A packaging component is used to package the sampled product, and the packaging component is located below the sampling port (2).

2. An automatic sampling system according to claim 1, characterized in that: The container (1) further comprises a support frame (6), the unloading container (1) being mounted on the support frame (6), a bag support frame (7) being slidably connected to the support frame (6), the bag support frame (7) being located below the sampling port (2), and a driving member (9) for driving the bag support frame (7) to slide in the direction of the sampling port (2) being arranged on the support frame (6).

3. An automatic sampling system according to claim 2, characterized in that: The carrier frame (6) is provided with a weighing device (17) for weighing the sample, and the weighing device (17) is located below the sampling port (2).

4. An automatic sampling system according to claim 3, characterized in that: The bearing frame (6) is slidably connected to a sliding frame (18), the weighing device (17) is arranged on the sliding frame (18), and the bearing frame (6) is provided with a power member (19) for driving the sliding frame (18) to slide to below the sampling port (2).

5. An automatic sampling system according to claim 4, characterized in that: A support (20) is fixed on the side wall of the sliding frame (18), and a heat sealing device (21) is installed on the support (20).

6. An automatic sampling system according to claim 5, characterized in that: A guide rail (22) is fixed on the carrier frame (6), a transport vehicle (23) is slidably connected to the guide rail (22), a transport clamp (24) is provided on the transport vehicle (23), and the transport clamp (24) is used to clamp the packaging bag.

7. An automatic sampling system according to claim 1, characterized in that: The blocking member (3) comprises a cylinder (25) fixed to the inner wall of the sampling port (2), a material guide shell (26) movably connected to the inner wall of the cylinder (25), and a blocking sheet (27) covering the opening of the cylinder. A U-shaped groove (30) is provided on the outer wall of the cylinder (25). A driving rod (31) is slidably connected to the inner wall of the U-shaped groove (30). The driving rod (31) is fixedly connected to the material guide shell (26). A second driving member (32) for driving the driving rod (31) to slide along the inner wall of the U-shaped groove (30) is provided on the outer wall of the cylinder (25).

8. An automatic sampling system according to claim 2, characterized in that: A sampling monitoring probe (33) is installed on the side wall of the carrier (6), and the sampling monitoring probe (33) is located close to the sampling port (2).

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