A seed moisture detection device suitable for year-round planting of wheat and corn

Through the combined design of feeding tray, air supply mechanism and electric heating block, the weighing error problem after seed drying is solved, and the accuracy and efficiency of seed moisture detection are improved.

CN120369526BActive Publication Date: 2025-08-22CROP RES INST SHANDONG ACAD OF AGRI SCI
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Patent Information

Application Number
CN202510888400.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2025-08-22
Estimated Expiration
2045-06-30

AI Technical Summary

Technical Problem

When the existing seed moisture detection device is weighed after drying, the seeds are in a high temperature state, which can easily lead to errors in hot air or moisture absorption, affecting the detection accuracy.

Method used

The combined design of feeding tray, air supply mechanism and weight sensor is adopted to dissipate heat from the dry seeds through the air supply fan blade, and the seeds are re-dried using electric heating blocks. Combined with the lifting mechanism of the support plate and slider, the seeds are quickly cooled and evenly dried before weighing.

Benefits of technology

The errors caused by hot air or moisture absorption during weighing are effectively avoided, the detection accuracy is improved, and the detection efficiency is improved through continuous operation.

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Abstract

The present invention relates to the technical field of detection devices, and discloses a seed moisture detection device suitable for year-round planting of wheat and corn, comprising a support table, a feed tray rotatably mounted on the upper surface of the support table, the bottom end of the feed tray being in contact with the upper surface of the support table, a plurality of placement holes being equidistantly provided on the upper surface of the feed tray in the circumferential direction, a first weight sensor and a second weight sensor corresponding to the placement holes being embedded in the upper surface of the support table, and an electric heating block being embedded in the upper surface of the support table close to the first weight sensor. In the present invention, after the seeds are dried, the feed tray drives the seeds to move to the heat dissipation holes, and at the same time, the air supply fan blades continue to supply air to the inside of the placement holes, so that the dried seeds can be quickly cooled and dissipated, so that the seeds can return to a stable state, thereby avoiding errors in the subsequent weighing of the seeds due to hot air or moisture absorption.
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Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a seed moisture detection device suitable for year-round planting of wheat and corn. Background Art

[0002] The seed moisture detection device suitable for year-round planting of wheat and corn is mainly used to detect the moisture content of seeds, reduce planting problems caused by seeds being too wet or too dry, and thus improve crop yield and quality.

[0003] An existing seed moisture detection device (Announcement No.: CN221883370U) has at least the following disadvantages: The above patent uses the coordination between a flip mechanism, a seed holding mechanism, a lifting mechanism, a material guide plate, a dry seed discharge outlet, an opening and closing valve, a weighing frame, a measuring scale and an observation window, which can facilitate weighing the seeds directly after drying, avoiding the need to take out the seeds for weighing separately, and improving the efficiency of seed moisture detection; the above patent weighs the seeds directly after drying. Since the seeds are in a high temperature state after drying, the seeds do not return to a stable state before cooling, which can easily lead to errors in weighing the seeds due to hot air or moisture absorption. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a seed moisture detection device suitable for year-round planting of wheat and corn.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A seed moisture detection device suitable for year-round planting of wheat and corn, comprising a support platform, a feed tray rotatably mounted on the upper surface of the support platform, the bottom end of the feed tray being in contact with the upper surface of the support platform, a plurality of placement holes being equidistantly provided through the upper surface of the feed tray in a circumferential direction, a first weight sensor and a second weight sensor corresponding to the placement holes being embedded in the upper surface of the support platform, an electric heating block being embedded in the upper surface of the support platform near the first weight sensor, a plurality of heat dissipation holes being evenly provided through the upper surface of the support platform located between the second weight sensor and the electric heating block, and an air supply mechanism being installed on the top of the feed tray near each placement hole.

[0007] As a further solution of the present invention, the air supply mechanism includes a support plate fixedly installed on the top of the feed tray, the outer surface of the support plate is provided with a slide groove, the inner wall of the slide groove is slidably provided with a slider, the outer surface of the slider is fixedly provided with a cover, the cover is arranged directly above the placement hole, a number of through holes are evenly provided on the bottom of the cover, a transmission rod is rotatably installed on the top of the cover, a supply fan blade is fixedly installed on the bottom end of the transmission rod, and a lifting mechanism is installed between the slider and the support platform.

[0008] As a further solution of the present invention, the lifting mechanism includes a portal frame fixedly mounted on the upper surface of the support platform, a support column fixedly mounted on the top wall of the portal frame, a guide cylinder fixedly mounted on the bottom end of the support column, the guide cylinder and the feed tray are coaxially arranged, a closed-loop guide groove is provided on the outer periphery of the guide cylinder, a guide column fixedly mounted on the outer surface of the slider, the guide column and the inner wall of the closed-loop guide groove are slidably mounted, and a drive assembly is installed between the support column and the transmission rod.

[0009] As a further solution of the present invention, the drive assembly includes a transmission gear ring fixedly installed on the outer periphery of the support column, a transmission tube is rotatably installed through the top of the support plate, the transmission rod is inserted into the interior of the transmission tube, and the transmission rod and the transmission tube are installed through spline transmission.

[0010] As a further solution of the present invention, a transmission gear is fixedly mounted on the top end of the transmission tube, and the transmission gear is meshed with a transmission gear ring.

[0011] As a further solution of the present invention, the closed-loop guide groove includes a covering segment groove, a retaining segment groove and a lifting segment groove, and the closed-loop guide groove is composed of the covering segment groove, the retaining segment groove and the lifting segment groove connected end to end.

[0012] As a further solution of the present invention, a discharge port is formed through the upper surface of the support platform between the first weight sensor and the second weight sensor, and a discharge hopper is fixedly mounted on the lower surface of the support platform near the discharge port.

[0013] As a further solution of the present invention, a stepper motor is fixedly mounted on the top wall of the support platform, and the output end of the stepper motor passes through the top of the support platform and is fixedly mounted to the rotation center of the feed tray.

[0014] As a further solution of the present invention, a plurality of ventilation holes are provided through the outer periphery of the feed tray near each placement hole, and the plurality of ventilation holes are connected to the interior of the placement hole.

[0015] The beneficial effects of the present invention are:

[0016] 1. After the seeds are dried, the feeding tray drives the seeds to the heat dissipation holes. At the same time, the fan blades continue to blow air into the placement holes, so that the dried seeds can quickly cool down and dissipate heat, so that the seeds can return to a stable state, avoiding errors in subsequent weighing due to hot air or moisture absorption;

[0017] 2. The feeding tray is driven to rotate by a stepper motor so that the feeding tray can push the weighed seeds onto the electric heating block through the placement hole, so that the electric heating block can dry the seeds and remove moisture inside the seeds; while the feeding tray rotates, the cover as a whole is driven to rotate through the support plate and the slider, and when the guide column installed on the slider moves from the covering section groove to the holding section groove, the cover as a whole moves downward so that the bottom of the cover covers the top of the placement hole. At the same time, the corresponding transmission gear will roll on the transmission gear ring so that the transmission gear can drive the air supply fan blades to rotate through the transmission pipe and the transmission rod, so that the air supply fan blades can supply air to the inside of the placement hole, accelerate the air flow speed inside the placement hole, and enable the water vapor generated by seed drying to be quickly discharged from the ventilation hole, thereby improving the drying efficiency of the seeds; and the air flow blown out by the air supply fan blades can blow the seeds in the placement hole, so that the seeds as a whole are evenly heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the top structure of a support platform of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the portal frame structure of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the feeding tray structure of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the cover structure of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the expanded structure of a closed-loop guide groove of a seed moisture detection device suitable for year-round planting of wheat and corn proposed by the present invention.

[0025] In the figure: 1. Support platform; 2. Feed tray; 3. First weight sensor; 4. Second weight sensor; 5. Electric heating block; 6. Heat dissipation hole; 7. Discharge port; 8. Discharge hopper; 9. Placement hole; 10. Ventilation hole; 11. Support plate; 12. Transmission pipe; 13. Transmission rod; 14. Supply fan blade; 15. Slide groove; 16. Slider; 17. Cover; 18. Transmission gear; 19. Through hole; 20. Door frame; 21. Support column; 22. Transmission gear ring; 23. Guide cylinder; 24. Closed-loop guide groove; 241. Covering section groove; 242. Holding section groove; 243. Lifting section groove; 25. Guide column; 26. Stepper motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Refer to the attached Figure 1 -Attached Figure 7 , a seed moisture detection device suitable for year-round planting of wheat and corn, comprising a support platform 1, a feeding tray 2 is rotatably mounted on the upper surface of the support platform 1, the bottom end of the feeding tray 2 is in contact with the upper surface of the support platform 1, and a plurality of placement holes 9 are equidistantly penetrated in the circumferential direction of the upper surface of the feeding tray 2, a first weight sensor 3 and a second weight sensor 4 corresponding to the placement holes 9 are respectively embedded in the upper surface of the support platform 1, an electric heating block 5 is embedded in the upper surface of the support platform 1 near the first weight sensor 3, a plurality of heat dissipation holes 6 are evenly penetrated on the upper surface of the support platform 1 between the second weight sensor 4 and the electric heating block 5, an air supply mechanism is installed on the top of the feeding tray 2 near each placement hole 9, a stepping motor 26 is fixedly mounted on the top wall of the support platform 1, and the output end of the stepping motor 26 penetrates the top of the support platform 1 and is fixedly mounted to the rotation center of the feeding tray 2.

[0029] In this embodiment, the air supply mechanism includes a support plate 11 fixedly mounted on the top of the feed tray 2, and a slide groove 15 is provided on the outer surface of the support plate 11, and a slider 16 is slidably installed on the inner wall of the slide groove 15. A cover 17 is fixedly installed on the outer surface of the slider 16, and the cover 17 is arranged just above the placement hole 9. A plurality of through holes 19 are evenly penetrated at the bottom of the cover 17, and a transmission rod 13 is rotatably installed on the top of the cover 17. The bottom end of the transmission rod 13 is fixedly mounted with a supply fan blade 14, and a lifting mechanism is installed between the slider 16 and the support platform 1. The lifting mechanism includes a door frame 20 fixedly mounted on the upper surface of the support platform 1, and a support column 21 is fixedly mounted on the top wall of the door frame 20. A guide cylinder 23 is fixedly installed on the bottom end of the support column 21, and the guide cylinder 23 is located at the same position as the feed tray 2. The axis is set, and a closed-loop guide groove 24 is provided on the outer periphery of the guide cylinder 23. A guide column 25 is fixedly installed on the outer surface of the slider 16. The guide column 25 is slidably installed on the inner wall of the closed-loop guide groove 24. A driving assembly is installed between the support column 21 and the transmission rod 13. The driving assembly includes a transmission gear ring 22 fixedly installed on the outer periphery of the support column 21. The top of the support plate 11 is rotatably installed with a transmission tube 12. The transmission rod 13 is inserted into the interior of the transmission tube 12, and the transmission rod 13 and the transmission tube 12 are installed through a spline transmission. A transmission gear 18 is fixedly installed on the top of the transmission tube 12, and the transmission gear 18 is meshed with the transmission gear ring 22. A plurality of ventilation holes 10 are provided on the outer periphery of the feed tray 2 near each placement hole 9, and the plurality of ventilation holes 10 are connected to the interior of the placement hole 9.

[0030] After weighing is completed, the feeding tray 2 is driven to rotate by the stepper motor 26, so that the feeding tray 2 can push the weighed seeds onto the electric heating block 5 through the placement hole 9, so that the electric heating block 5 can dry the seeds and remove the moisture inside the seeds; while the feeding tray 2 rotates, the cover 17 is driven to rotate as a whole through the support plate 11 and the slider 16, and when the guide column 25 installed on the slider 16 moves from the covering segment groove 241 to the holding segment groove 242, the cover 17 moves downward as a whole, so that the bottom cover of the cover 17 At the top of the placement hole 9, at the same time, the corresponding transmission gear 18 will roll on the transmission gear ring 22, so that the transmission gear 18 can drive the air supply fan blades 14 to rotate through the transmission tube 12 and the transmission rod 13, so that the air supply fan blades 14 can supply air to the inside of the placement hole 9, accelerate the air flow speed inside the placement hole 9, and make the water vapor generated by seed drying quickly discharged from the ventilation hole 10, thereby improving the drying efficiency of the seeds; and the air flow blown out by the air supply fan blades 14 can blow the seeds in the placement hole 9, so that the seeds are evenly heated as a whole.

[0031] In this embodiment, the closed-loop guide groove 24 includes a covering segment groove 241, a retaining segment groove 242 and a lifting segment groove 243. The closed-loop guide groove 24 is composed of the covering segment groove 241, the retaining segment groove 242 and the lifting segment groove 243 connected end to end.

[0032] When the guide column 25 is in the retaining groove 242 , the bottom of the cover 17 always covers the placement hole 9 , preventing the seeds inside the placement hole 9 from being blown out when the air supply fan blades 14 supply air.

[0033] In this embodiment, a discharge port 7 is formed through the upper surface of the support platform 1 between the first weight sensor 3 and the second weight sensor 4 , and a discharge hopper 8 is fixedly mounted on the lower surface of the support platform 1 near the discharge port 7 .

[0034] After the feeding tray 2 drives the seeds to move above the second weight sensor 4, the second weight sensor 4 will weigh the cooled seeds and record the final weight of the seeds, so that the moisture content of the seeds can be calculated based on the initial weight and final weight of the seeds. As the feeding tray 2 continues to rotate, the seeds in the placement hole 9 will fall into the discharge port 7 and be discharged through the discharge hopper 8. There is no need for manual labor to pick up the seeds that have completed the inspection, which facilitates continuous moisture detection of seeds and improves the efficiency of the detection operation.

[0035] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: when in use, the seeds to be tested for moisture are placed in the placement hole 9 corresponding to the first weight sensor 3, so that the first weight sensor 3 can weigh the weight of the seeds falling on it and record the initial weight data;

[0036] After weighing is completed, the feeding tray 2 is driven to rotate by the stepper motor 26, so that the feeding tray 2 can push the weighed seeds onto the electric heating block 5 through the placement hole 9, so that the electric heating block 5 can dry the seeds and remove the moisture inside the seeds; while the feeding tray 2 rotates, the cover 17 is driven to rotate as a whole through the support plate 11 and the slider 16, and when the guide column 25 installed on the slider 16 moves from the covering segment groove 241 to the holding segment groove 242, the cover 17 moves downward as a whole, so that the bottom cover of the cover 17 At the top of the placement hole 9, at the same time, the corresponding transmission gear 18 will roll on the transmission gear ring 22, so that the transmission gear 18 can drive the fan blades 14 to rotate through the transmission tube 12 and the transmission rod 13, so that the fan blades 14 can supply air to the inside of the placement hole 9, accelerate the air flow speed inside the placement hole 9, and enable the water vapor generated by seed drying to be quickly discharged from the ventilation hole 10, thereby improving the drying efficiency of the seeds; and the air flow blown out by the fan blades 14 can blow the seeds in the placement hole 9, so that the seeds are evenly heated as a whole;

[0037] After the seeds are dried, the feeding tray 2 drives the seeds to move to the heat dissipation holes 6. At the same time, the air supply fan blades 14 continue to supply air to the inside of the placement hole 9, so that the dried seeds can be quickly cooled and dissipated, so that the seeds can return to a stable state, avoiding errors in the subsequent weighing of the seeds due to hot air or moisture absorption;

[0038] After the feeding tray 2 drives the seeds to move above the second weight sensor 4, the second weight sensor 4 will weigh the cooled seeds and record the final weight of the seeds, so that the moisture content of the seeds can be calculated based on the initial weight and final weight of the seeds.

[0039] As the feeding tray 2 continues to rotate, the seeds in the placement hole 9 will fall into the discharge port 7 and be discharged through the discharge hopper 8. There is no need to manually pick up the seeds that have been tested, which facilitates the continuous moisture testing of the seeds and improves the efficiency of the testing operation.

[0040] When the guide post 25 moves to the lifting section groove 243, the guide post 25 will drive the cover 17 to be lifted to its original position as a whole, so that the cover 17 no longer blocks the placement hole 9, so that seeds can be put back in for moisture detection.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A seed moisture detection device suitable for year-round planting of wheat and corn, comprising a support platform (1), characterized in that: A feeding tray (2) is rotatably mounted on the upper surface of the support platform (1), and the bottom end of the feeding tray (2) is in contact with the upper surface of the support platform (1). A plurality of placement holes (9) are uniformly provided on the upper surface of the feeding tray (2) in the circumferential direction. A first weight sensor (3) and a second weight sensor (4) corresponding to the placement holes (9) are embedded in the upper surface of the support platform (1). An electric heating block (5) is embedded in the upper surface of the support platform (1) near the first weight sensor (3). A plurality of heat dissipation holes (6) are uniformly provided on the upper surface of the support platform (1) between the second weight sensor (4) and the electric heating block (5). The top of each placement hole (9) of the feeding tray (2) is uniformly provided with a heat dissipation hole (6). An air supply mechanism is installed, and the air supply mechanism includes a support plate (11) fixedly installed on the top of the feeding tray (2), a slide groove (15) is opened through the outer surface of the support plate (11), a slider (16) is slidably installed on the inner wall of the slide groove (15), a cover (17) is fixedly installed on the outer surface of the slider (16), the cover (17) is arranged just above the placement hole (9), a plurality of through holes (19) are evenly opened through the bottom of the cover (17), a transmission rod (13) is rotatably installed through the top of the cover (17), and a fan blade (14) is fixedly installed at the bottom end of the transmission rod (13), and a lifting mechanism is installed between the slider (16) and the support platform (1).

2. A seed moisture detection device suitable for year-round planting of wheat and corn according to claim 1, characterized in that: The lifting mechanism comprises a door frame (20) fixedly mounted on the upper surface of the support platform (1), a support column (21) fixedly mounted on the top wall of the door frame (20), a guide cylinder (23) fixedly mounted on the bottom end of the support column (21), the guide cylinder (23) and the feed tray (2) are coaxially arranged, a closed-loop guide groove (24) is provided on the outer periphery of the guide cylinder (23), a guide column (25) is fixedly mounted on the outer surface of the slider (16), the guide column (25) is slidably mounted on the inner wall of the closed-loop guide groove (24), and a driving assembly is installed between the support column (21) and the transmission rod (13).

3. A seed moisture detection device suitable for year-round planting of wheat and corn according to claim 2, characterized in that: The drive assembly comprises a transmission gear ring (22) fixedly mounted on the outer periphery of a support column (21); a transmission tube (12) is rotatably mounted through the top end of the support plate (11); the transmission rod (13) is inserted into the interior of the transmission tube (12); and the transmission rod (13) and the transmission tube (12) are mounted via a spline transmission.

4. A seed moisture detection device suitable for year-round planting of wheat and corn according to claim 3, characterized in that: A transmission gear (18) is fixedly mounted on the top end of the transmission tube (12), and the transmission gear (18) is meshed with a transmission gear ring (22).

5. The seed moisture detection device suitable for year-round planting of wheat and corn according to claim 2, characterized in that: The closed-loop guide groove (24) comprises a covering segment groove (241), a retaining segment groove (242) and a lifting segment groove (243), and the closed-loop guide groove (24) is composed of the covering segment groove (241), the retaining segment groove (242) and the lifting segment groove (243) connected end to end.

6. The seed moisture detection device suitable for year-round planting of wheat and corn according to claim 1, characterized in that: A discharge port (7) is provided through the upper surface of the support platform (1) located between the first weight sensor (3) and the second weight sensor (4), and a discharge hopper (8) is fixedly mounted on the lower surface of the support platform (1) near the discharge port (7).

7. The seed moisture detection device suitable for year-round planting of wheat and corn according to claim 1, characterized in that: A stepper motor (26) is fixedly mounted on the top wall of the support platform (1), and an output end of the stepper motor (26) passes through the top of the support platform (1) and is fixedly mounted to the rotation center of the feeding tray (2).

8. The seed moisture detection device suitable for year-round planting of wheat and corn according to claim 1, characterized in that: A plurality of ventilation holes (10) are provided through the outer periphery of the feeding tray (2) near each placement hole (9), and the plurality of ventilation holes (10) are all connected to the interior of the placement hole (9).

Citation Information

Patent Citations

  • Seed moisture detection device

    CN221883370U

  • Food water content weighing device

    CN118746514A

  • Wheat seed stoving mechanism

    CN208108745U