Grain volume weight detection device

By controlling the insertion and withdrawal of the material separator plate through a lifting and tilting mechanism, combined with anti-breakage components and venting blocks, the problem of low accuracy in existing grain bulk density detection devices is solved, and the grain filling of the constant volume cylinder and the accuracy of the measurement results are achieved.

CN224152265UActive Publication Date: 2026-04-21SHANDONG CAIJU ELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CAIJU ELECTRONICS TECH CO LTD
Filing Date
2026-03-10
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing grain bulk density testing devices suffer from low detection accuracy and poor precision, especially due to measurement errors caused by grains not being fully filled in the volume control component.

Method used

A device comprising a frame, a conveying assembly, a volume control assembly, and a weighing assembly is designed. The insertion and withdrawal of the material separator are controlled by a lifting mechanism and a tilting mechanism to ensure that the volume control cylinder is filled with grain. The detection process is optimized by an anti-breakage assembly and an exhaust block.

Benefits of technology

It achieves full filling of the volumetric cylinder with grain, improving the accuracy and precision of detection, avoiding grain breakage, and has a simple structure with reliable measurement results.

✦ Generated by Eureka AI based on patent content.

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Abstract

A grain volume weight detection device belongs to the technical field of grain detection equipment. The material conveying assembly is connected with the rack through a lifting mechanism, the constant volume assembly is connected with the rack through a turnover mechanism, the constant volume assembly comprises a constant volume cylinder and a material separating plate, the constant volume cylinder is provided with a material separating groove allowing the material separating plate to be inserted therein, the constant volume cylinder is further provided with a material pushing opening, and the material pushing opening is formed in one side of the material separating groove and communicates with the material separating groove; the material separating plate is connected with the machine frame through a material separating pushing device, and the material separating pushing device drives the material separating plate to stretch into or retreat from the material separating groove. The material separating plate is inserted into the material separating groove and has a certain distance from the feeding port of the constant-volume cylinder, the material separating plate is prevented from penetrating through the tip end of the upper end of grains, the constant-volume space of the constant-volume cylinder can be filled with the grains, measurement is more accurate, the grains on the upper side of the material pushing plate drive the constant-volume cylinder to overturn through the overturning mechanism, the constant-volume cylinder falls down, and the lifting mechanism drives the material conveying assembly to ascend and descend. And the overturning of the constant volume cylinder is prevented from being hindered.
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Description

Technical Field

[0001] A grain bulk density testing device belongs to the technical field of grain testing equipment. Background Technology

[0002] The mass of grain per unit volume is called bulk density, which is used to determine the grade of grains such as wheat and corn and is an important indicator of grain quality. With social development, the bulk density testing of grains has gradually become more automated, but due to structural limitations, there are problems such as low detection precision and poor accuracy.

[0003] As described in patent CN221550370U, a bulk density measuring device typically includes a feeding component, a volume-regulating component, an venting component, and a weighing component. A baffle plate is installed between the feeding component and the volume-regulating component to seal the upper feed inlet of the volume-regulating component. The device then measures the grain within a certain volume. The baffle plate is usually horizontally positioned and is pushed horizontally to the upper end of the volume-regulating component by a thrust component. The grain falling from the feeding component tends to concentrate in the middle of the volume-regulating cylinder and diffuse outwards, resulting in a hill-like appearance at the upper end of the volume-regulating cylinder. This often leads to the measuring container not being completely filled with grain, thus affecting the test results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a grain bulk density testing device to ensure that the constant volume cylinder is full of grain and the test results are accurate.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: the grain bulk density testing device includes a frame, and from top to bottom, a conveying component, a volume-fixing component and a weighing component are provided on the frame. The conveying component is connected to the frame through a lifting mechanism, and the volume-fixing component is connected to the frame through a flipping mechanism.

[0006] The volume-regulating assembly includes a volume-regulating cylinder and a material-separating plate. The volume-regulating cylinder is provided with a material-separating groove. The material-separating plate is connected to a flipping mechanism through a material-separating pushing mechanism. The material-separating pushing mechanism drives the material-separating plate to extend into or out of the material-separating groove.

[0007] Preferably, the flipping mechanism includes a flipping motor and a fixed plate. The flipping motor is fixed on the frame, and the fixed plate is located at the working end of the flipping motor. The constant volume cylinder is vertically located on one side of the fixed plate, and the material separating and pushing mechanism is located on the other side of the fixed plate. The fixed plate is provided with a partition groove, which is flush with the height of the material separating groove. The material separating and pushing mechanism drives the material separating plate to pass through the partition groove and the material separating groove.

[0008] Preferably, a baffle plate is provided at one end of the constant volume cylinder near the material separator trough. The three baffle plates and the fixed plate together form a material-blocking cavity with an opening, and the opening direction is the same as the outlet direction of the constant volume cylinder.

[0009] The volumetric cylinder is also equipped with a pusher port, which is connected to the material separating groove, and the width of the pusher port is greater than the width of the material separating groove. This width refers to the dimension along the axial direction of the volumetric cylinder.

[0010] Preferably, it also includes an exhaust block, which is disposed inside the constant volume cylinder, and the end of the constant volume cylinder is provided with a limiting component for limiting the exhaust block.

[0011] Preferably, the limiting component includes a limiting block and a bottom cover. The bottom cover is located at the end of the constant volume cylinder and at the end away from the material separating trough. The bottom cover is provided with an exhaust port. The limiting block is mounted on the fixed plate through a limiting block moving mechanism. The limiting block moving mechanism drives the limiting block to limit the exhaust block.

[0012] Preferably, it also includes an anti-breakage component, which is disposed on the upper side of the conveying component, and the upper end of the anti-breakage component is connected to the vacuum component.

[0013] Preferably, the anti-breakage component includes a suction hopper, a feed pipe, and a discharge baffle. The suction hopper is connected to the feed pipe and its upper end is connected to a vacuum assembly. The inner wall of the suction hopper is provided with a rubber plate, and the discharge baffle is set at the outlet of the suction hopper through a discharge pushing mechanism.

[0014] Preferably, the material conveying assembly includes an upper material conveying cylinder, a lower material conveying cylinder, and a first material conveying hopper. The output end of the lifting mechanism is provided with an installation plate. The upper material conveying cylinder and the lower material conveying cylinder are axially aligned on the installation plate, and the first material conveying hopper is located at the inlet of the upper material conveying cylinder.

[0015] Preferably, the feeding assembly further includes a second feeding hopper and a feeding baffle. A fixed boss is provided inside the upper feeding cylinder. The second feeding hopper is located on the upper side of the fixed boss. A feeding trough is provided on the upper feeding cylinder. The height of the feeding trough is flush with the height of the fixed boss. The feeding baffle is driven by the feeding pushing mechanism, passes through the feeding trough, and moves horizontally along the lower side of the fixed boss.

[0016] Preferably, the weighing assembly includes a weighing hopper, a receiving hopper, a weighing baffle, and a weighing sensor. A support frame is provided on the frame, the weighing sensor is placed on the support frame and connected to the weighing hopper, the weighing baffle is set at the outlet of the weighing hopper through a weighing pushing mechanism, and the weighing hopper is set inside the receiving hopper.

[0017] Compared with existing technologies, the beneficial effects of this technical solution are:

[0018] The material separator of this invention is inserted into the material separator groove of the volumetric cylinder and is at a certain distance from the inlet of the volumetric cylinder. Compared with the material separator being set close to the outlet of the volumetric cylinder, this avoids the material separator passing through the tip of the grain. In addition, the measuring cavity of the measuring container can ensure that it is filled with grain, making the measurement more accurate.

[0019] To prevent individual grains from blocking the separator plate when it is inserted into the separator trough, a push-out port is provided on the side of the separator trough. This push-out port can push out the grains in the separator trough, preventing the separator plate from being stuck by grains when it is inserted into the separator trough. This will not affect the measurement results. The structure is simple and the measurement is accurate.

[0020] In addition, the anti-breakage component of this utility model is equipped with a rubber plate, which can prevent the grain from breaking when it falls during feeding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a grain bulk density testing device according to the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the anti-breakage component of this utility model.

[0023] Figure 3 This is a schematic diagram of the material conveying component and the volume-regulating component of this utility model.

[0024] Figure 4 This is a schematic diagram of the material conveying assembly of this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the volume-regulating component of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the exhaust block and the limiting component of this utility model.

[0027] Figure 7 This is a schematic diagram of the weighing component of this utility model.

[0028] Figure 8 This is a schematic diagram of the weighing hopper.

[0029] The components include: 1. Anti-breakage component 101, suction hopper 102, feed pipe 103, discharge baffle 2, conveying component 201, upper conveying cylinder 202, lower conveying cylinder 203, first conveying hopper 204, second conveying hopper 205, conveying baffle 206, conveying motor 207, conveying screw 208, conveying sensor 209, fixed boss 210, conveying trough 3, volume-regulating component 301, volume-regulating cylinder 302, material separator 303, material separator trough 304, pusher port 305, pusher motor 306, pusher screw 307, reinforcing boss 4, weighing component 401. Measuring hopper 402, receiving hopper 403, weighing sensor 404, weighing baffle 5, frame 6, exhaust block 7, tilting mechanism 701, tilting motor 8, fixing plate 801, partition groove 802, upper fixing block 803, lower fixing block 804, fixing through groove 9, bottom cover 10, baffle plate 11, mounting plate 1101, upper clamping block 1102, lower clamping block 12, lifting mechanism 1201, lifting motor 1202, first pulley 1203, second pulley 1204, lifting screw 13, vacuum assembly 1301, vacuum switch valve 14, limit block. Detailed Implementation

[0030] Figures 1-8 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-8 The present invention will be further described below.

[0031] Reference Figure 1 The grain bulk density testing device includes a conveying component 2, a volume-fixing component 3, and a weighing component 4, which are arranged from top to bottom on a frame 5. The conveying component 2 is connected to the frame 5 via a lifting mechanism 12, and the volume-fixing component 3 is connected to the frame 5 via a tilting mechanism 7. An anti-breakage component 1 is also provided on the upper side of the conveying component 2. The upper end of the anti-breakage component 1 is connected to a vacuum component 13. The vacuum component 13 extracts the air from the anti-breakage component 1, allowing the grain to be tested to enter the anti-breakage component 1. Then, through the conveying component 2, it enters the volume-fixing component 3 for volume-fixing testing, and finally, the weighing is completed.

[0032] Reference Figure 2The anti-breakage component 1 includes a conical suction hopper 101, a feed pipe 102, and a discharge baffle 103. The inlet end of the suction hopper 101 is connected to a vacuum pipe. One end of the vacuum pipe is connected to a filter installed in the suction hopper 101, and the other end is equipped with a vacuum switch valve 1301, which is a solenoid valve. The outlet end of the suction hopper 101 is equipped with a discharge baffle 103, which is driven by a motor to block the outlet of the suction hopper 101. Open the solenoid valve to extract the air from the suction hopper 101 and create a vacuum. At this time, the discharge baffle 103 is positioned to block the outlet of the suction hopper 101, and the grain enters the suction hopper 101 through the feed pipe 102. The feed pipe 102 of this invention is a wear-resistant conveying hose to prevent breakage during grain conveying. The inner wall of the suction hopper 101 is equipped with a rubber plate to prevent the grain from colliding and breaking when entering the suction hopper 101.

[0033] Reference Figures 3-5 The material conveying assembly 2 is set on the upper side of the constant volume assembly 3 via the lifting mechanism 12. The material conveying assembly 2 includes an upper material conveying cylinder 201, a lower material conveying cylinder 202, a first material conveying hopper 203, a second material conveying hopper 204, and a material conveying baffle 205. The output end of the lifting mechanism 12 is provided with a rectangular mounting plate 11. Both the lower material conveying cylinder 202 and the upper material conveying cylinder 201 are cylindrical. The upper material conveying cylinder 201 and the lower material conveying cylinder 202 are axially aligned on the mounting plate 11. The upper end of the mounting plate 11 is provided with an upper clamping block 1101, and the lower end is provided with a lower clamping block 1102. The upper clamping block 1101 and the lower clamping block 1102 have the same shape and are composed of a fixed part and a movable part. The fixed part is fixedly connected to the mounting plate 11, and the movable part is connected to the fixed part by bolts. The movable part and the fixed part together form a clamping cavity for clamping the upper conveying cylinder 201 and the lower conveying cylinder 202. The lower end of the upper conveying cylinder 201 is sleeved on the upper end of the lower conveying cylinder 202, and the connection part between the two and the lower end of the lower conveying cylinder 202 are respectively set in the clamping cavity.

[0034] The upper end of the upper conveying cylinder 201 is provided with a first conveying hopper 203. The conical first conveying hopper 203 has an opening side with a larger diameter, facing the anti-breakage component 1, and an outlet side with a smaller diameter, connected to the upper end of the upper conveying cylinder 201. The lower end of the upper conveying cylinder 201 is provided with a conveying trough 210, which is positioned close to the mounting plate 11. The conveying baffle 205 passes through the conveying trough 210 and enters the upper conveying cylinder 201, sealing it. Inside the upper conveying cylinder 201 is a circular fixing boss 209. The fixing boss 209 is flush with the bottom edge of the conveying trough 210 and is fixedly connected to the upper conveying cylinder 201 by bolts. The outlet of the second feeding hopper 204 is located on the upper side of the fixed boss 209. The fixed boss 209 has a through hole with the same diameter as the outlet of the second feeding hopper 204. The inlet diameter of the second feeding hopper 204 is the same as the inner diameter of the upper feeding cylinder 201. After the grain enters the upper feeding cylinder 201 through the first feeding hopper 203, it enters the lower feeding cylinder 202 through the second feeding hopper 204.

[0035] A conveying motor 206 is mounted on the mounting plate 11. The conveying motor 206 is a rotary motor that drives the conveying screw 207 to rotate. A conveying baffle 205 is connected to the conveying screw 207 and, through two sliders, to two guide rods. The two guide rods are horizontally positioned between the conveying motor 206 and the mounting plate 11. After passing through the upper end of the mounting plate 11, the conveying baffle 205 moves horizontally along the lower side of the fixed boss 209, thereby closing or opening the upper conveying cylinder 201. A conveying sensor 208 is also provided on one side of the upper conveying cylinder 201. The conveying sensor 208 controls the conveying baffle 205. When the conveying sensor 208 detects that the weight of the grain inside the upper conveying cylinder 201 reaches a set value, the conveying baffle 205 is opened to convey the grain to the lower conveying cylinder 202. The lower end of the lower conveying cylinder 202 is expanded outward to form an outlet with the same diameter as the upper conveying cylinder 201, which facilitates the conveying of grain into the constant volume cylinder 301.

[0036] The lifting mechanism 12 includes a lifting motor 1201, a first pulley 1202, a second pulley 1203, and a lifting screw 1204. A horizontal mounting rod is provided on the frame 5. The lifting motor 1201 is vertically mounted via the mounting rod. The output end of the lifting motor 1201 is connected to the first pulley 1202, causing the first pulley 1202 to rotate, which indirectly drives the second pulley 1203 connected to the first pulley 1202 to rotate. The lifting screw 1204 is connected to the second pulley 1203. The mounting plate 11 is connected to the lifting screw 1204 via a mounting block. During rotation, the lifting screw 1204 drives the mounting plate 11 to achieve height adjustment. Slide grooves are provided on both sides of the mounting block, and two vertically mounted slide rails are placed in the slide grooves, serving a guiding function during lifting.

[0037] The volume-regulating assembly 3 includes a volume-regulating cylinder 301 and a separator plate 302. The volume-regulating cylinder 301 is a cylindrical cylinder. The flipping mechanism 7 includes a flipping motor 701 and a fixing plate 8. A circular reinforcing part is provided on the frame 5, and the flipping motor 701 is mounted on the reinforcing part. The rectangular fixing plate 8 is located at the working end of the flipping motor 701, which drives the fixing plate 8 to rotate 180°. One end of the fixing plate 8 is provided with an upper fixing block 802, and the other end is provided with a lower fixing block 803. The upper and lower ends of the volume-regulating cylinder 301 are fixed by the upper fixing block 802 and the lower fixing block 803. The upper fixing block 802 and the lower fixing block 803 have the same shape and are provided with a fixed part and a movable part. The fixed part is connected to the fixing plate 8, and the movable part is connected to the fixed part by bolts. A fixed cavity is formed between the two, and the volume-regulating cylinder 301 is placed in the fixed cavity. A baffle plate 10 is provided on the side of the lower fixed block 803 away from the upper fixed block 802. The three baffle plates 10 and the fixed plate 8 together form a baffle cavity with an opening. The opening direction is the same as the outlet direction of the volumetric cylinder 301, so that the grain in the volumetric cylinder 301 will not be dispersed during the falling process.

[0038] Two reinforcing bosses 307 protrude outward from the side wall of the volume-regulating cylinder 301. The two reinforcing bosses 307 are symmetrically arranged, and a horizontal material-separating groove 303 is provided on the reinforcing bosses 307. A partition groove 801 is provided at the same position on the fixing plate 8. The partition plate 302 is driven by the material-separating pushing mechanism to pass through the partition groove 801 and the material-separating groove 303 in sequence, thereby sealing or opening the volume-regulating cylinder 301. The volume-regulating cylinder 301 is also provided with a push port 304. The push port 304 of this utility model is rectangular, and the width of the push port 304 is greater than the width of the material-separating groove 303. The push port 304 is located on the lower or upper side of the material-separating groove 303 and is connected to the material-separating groove 303.

[0039] The pusher motor 305 is a rotary motor. One end of the pusher motor 305 is connected to the reinforcing part, and the other end drives the pusher screw 306 to rotate. The partition plate 302 is connected to the pusher screw 306 and is connected to the two guide shafts through two sliders. The two guide shafts are horizontally arranged between the reinforcing part and the fixed plate 8, thereby driving the partition plate 302 to move horizontally.

[0040] Reference Figure 6The volumetric cylinder 301 has an exhaust block 6 inside. One end of the volumetric cylinder 301 has a bottom cover 9, which covers the end of the volumetric cylinder 301. The bottom cover 9 has a circular exhaust port at its center. The other end of the volumetric cylinder 301 has a limiting block 14 that limits the exhaust block 6. The limiting block 14 is connected to an electromagnet via a spring. The electromagnet is mounted on the end of the fixing plate 8 via a mounting plate 11. When the electromagnet is energized, it overcomes the spring force and attracts the limiting block 14 away from the end of the volumetric cylinder 301. When the electromagnet is de-energized, the spring pushes the limiting block 14 out. The fixing plate 8 has a fixing groove 804. The limiting block 14 passes through the fixing groove 804 and extends towards the center of the volumetric cylinder 301, thereby blocking the falling exhaust block 6.

[0041] Reference Figures 7-8 The weighing component 4 includes a weighing hopper 401, a receiving hopper 402, a weighing baffle 404, and a weighing sensor 403. The frame 5 extends to provide a support frame. The weighing sensor 403 is mounted on the support frame and connected to the weighing hopper 401. The weighing hopper 401 is suspended inside the receiving hopper 402.

[0042] A weighing baffle 404 is provided at the outlet of the weighing hopper 401. The weighing baffle 404 is driven by the weighing push motor to achieve the sealing of the weighing hopper 401. The receiving hopper 402 is eccentrically set on the frame 5. The size of the receiving hopper 402 is larger than that of the weighing hopper 401. The eccentric direction of the receiving hopper 402 is consistent with the flipping direction of the flipping motor 701. If the flipping motor 701 rotates clockwise, the distance between the right side of the receiving hopper 402 and the weighing hopper 401 is greater than the distance between the left side of the receiving hopper 402 and the weighing hopper 401.

[0043] Work process:

[0044] When the vacuum switch valve 1301 is opened, the grain enters the suction hopper 101 through the feed pipe 102. At this time, the discharge baffle 103 seals the outlet of the suction hopper 101. Simultaneously, the lifting motor 1201 drives the lifting screw 1204 to rotate, indirectly driving the mounting plate 11 to rise, so that the first conveying hopper 203 rises to the outlet of the suction hopper 101. When the sensor detects that the grain has reached the set weight, the discharge baffle 103 is controlled to move horizontally, so that the grain in the suction hopper 101 enters the upper conveying cylinder 201 through the first conveying hopper 203.

[0045] The conveying baffle 205 is controlled by the conveying sensor 208. At this time, the outlet of the upper conveying cylinder 201 is closed. The lifting motor 1201 drives the lifting screw 1204 to reverse, so that the outlet of the lower conveying cylinder 202 is located at the end of the fixed volume cylinder 301. At this time, the end of the fixed volume cylinder 301 with the bottom cover 9 faces downward. When the conveying sensor 208 detects that the grain in the upper conveying cylinder 201 has reached the preset value, it controls the conveying baffle 205 to move horizontally, so that the grain in the upper conveying cylinder 201 is conveyed to the fixed volume cylinder 301 through the lower conveying cylinder 202.

[0046] The air venting block 6 inside the volume-regulating cylinder 301 expels the air inside the volume-regulating cylinder 301 by its own gravity and is limited by the bottom cover 9. After all the grain in the lower conveying cylinder 202 enters the volume-regulating cylinder 301, the pusher motor 305 drives the partition plate 302 to move horizontally. The partition plate 302 passes through the partition groove 801 and the partition groove 303 in sequence to achieve volume regulation of the grain in the volume-regulating cylinder 301. During the pushing process, the grain at the partition groove 303 is discharged through the push port 304 to prevent the partition plate 302 from getting stuck.

[0047] After the lifting motor 1201 drives the mounting plate 11 to rise, the flipping motor 701 drives the fixing plate 8 to rotate 180°, and the upper and lower ends of the fixed volume cylinder 301 are reversed. Then, one end of the bottom cover 9 faces upward and one end of the material separating plate 302 faces downward. At this time, the excess grain on the upper side of the material separating plate 302 falls into the weighing hopper 401 and the receiving hopper 402 during the flipping process, and falls into the receiving hopper 402. After being weighed, it is discharged through the pipeline along with other grains.

[0048] The pusher motor 305 drives the partition plate 302 to move horizontally away from the partition trough 303. At this time, the volumetric cylinder 301 is in the open state, the exhaust block 6 falls down, and the grain in the volumetric cylinder 301 falls into the weighing hopper 401. At this time, the outlet of the weighing hopper 401 is sealed by the weighing baffle 404, thereby weighing the grain in the volumetric cylinder 301.

[0049] During the process of grain falling in the volumetric cylinder 301, the electromagnet is de-energized, the spring pushes out the limit block 14, the exhaust block 6 falls to the position of the limit block 14 and stops, the flipping motor 701 drives the fixing plate 8 to flip again, and the exhaust block 6 falls to the bottom cover 9 again.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A grain bulk density detection device comprising a frame (5), characterised in that: The frame (5) is provided with a material conveying component (2), a volume control component (3) and a weighing component (4) from top to bottom. The material conveying component (2) is connected to the frame (5) through a lifting mechanism (12), and the volume control component (3) is connected to the frame (5) through a flipping mechanism (7). The volume control assembly (3) includes a volume control cylinder (301) and a material separator (302). The volume control cylinder (301) is provided with a material separator groove (303). The material separator (302) is connected to the flipping mechanism (7) through a material separator pushing mechanism. The material separator pushing mechanism drives the material separator (302) to extend into or out of the material separator groove (303).

2. A grain mass detection device according to claim 1, wherein: The flipping mechanism (7) includes a flipping motor (701) and a fixed plate (8). The flipping motor (701) is fixed on the frame (5). The fixed plate (8) is located at the working end of the flipping motor (701). The constant volume cylinder (301) is vertically located on one side of the fixed plate (8). The material separation pushing mechanism is located on the other side of the fixed plate (8). The fixed plate (8) is provided with a partition groove (801). The partition groove (801) is flush with the material separation groove (303). The material separation pushing mechanism drives the material separation plate (302) to pass through the partition groove (801) and the material separation groove (303).

3. A grain mass detection device according to claim 2, wherein: A baffle plate (10) is provided at one end of the constant volume cylinder (301) near the material separator (303). The three baffle plates (10) and the fixed plate (8) together form a baffle cavity with an opening.

4. The grain mass detection device of claim 1, wherein: The constant volume cylinder (301) is also provided with a push port (304), which is connected to the material separating groove (303), and the width of the push port (304) is greater than the width of the material separating groove (303).

5. The grain mass detection device of claim 1, wherein: It also includes an exhaust block (6), which is disposed inside a constant volume cylinder (301), and the end of the constant volume cylinder (301) is provided with a limiting component for limiting the exhaust block (6); The limiting component includes a limiting block (14) and a bottom cover (9). The bottom cover (9) is located at the end of the constant volume cylinder (301) and at the end away from the material separator (303). The bottom cover (9) is provided with an exhaust port. The limiting block (14) is set on the fixed plate (8) through a limiting block moving mechanism. The limiting block moving mechanism drives the limiting block (14) to limit the exhaust block (6).

6. The grain mass detection device of claim 1, wherein: It also includes an anti-breakage component (1), which is located on the upper side of the conveying component (2), and the upper end of the anti-breakage component (1) is connected to the vacuum component (13).

7. A grain mass detection device according to claim 6, wherein: The anti-breakage component (1) includes a suction hopper (101), a feed pipe (102), and a discharge baffle (103). The suction hopper (101) is connected to the feed pipe (102) and its upper end is connected to the vacuum component (13). The inner wall of the suction hopper (101) is provided with a rubber plate, and the discharge baffle (103) is set at the outlet of the suction hopper (101) through a discharge pushing mechanism.

8. The grain mass detection device of claim 1, wherein: The material conveying assembly (2) includes an upper material conveying cylinder (201), a lower material conveying cylinder (202), and a first material conveying hopper (203). The output end of the lifting mechanism (12) is provided with an installation plate (11). The upper material conveying cylinder (201) and the lower material conveying cylinder (202) are axially aligned on the installation plate (11), and the first material conveying hopper (203) is located at the inlet of the upper material conveying cylinder (201).

9. A grain mass detection device according to claim 8, wherein: The material conveying assembly (2) also includes a second material conveying hopper (204) and a material conveying baffle (205). The material conveying upper cylinder (201) is provided with a fixed boss (209). The second material conveying hopper (204) is located on the upper side of the fixed boss (209). The material conveying upper cylinder (201) is provided with a material conveying groove (210). The height of the material conveying groove (210) is flush with the height of the fixed boss (209). The material conveying baffle (205) is driven by the material conveying pushing mechanism, passes through the material conveying groove (210), and moves horizontally along the lower side of the fixed boss (209).

10. The grain mass detection device of claim 1, wherein: The weighing assembly (4) includes a weighing hopper (401), a receiving hopper (402), a weighing baffle (404), and a weighing sensor (403). A support frame is provided on the frame (5). The weighing sensor (403) is installed on the support frame and connected to the weighing hopper (401). The weighing baffle (404) is installed at the outlet of the weighing hopper (401) through a weighing pushing mechanism. The weighing hopper (401) is installed inside the receiving hopper (402).