A container weight automatic detection device

Abstract

This invention provides an automatic bulk density detection device, relating to the field of material detection technology. It includes a housing: the housing is provided with a feed cylinder, a buffer cylinder, and a constant volume cylinder, arranged sequentially from top to bottom; the housing contains a cleaning mechanism for cleaning the constant volume cylinder, which includes a linear module, a screw lever, a guide rod, and an air knife; the linear module is fixedly connected to the side wall of the housing; the lower end of the screw lever is fixedly connected to the linear module, and the other end is fixedly connected to the end of the guide rod; the end of the guide rod away from the screw lever is fixedly connected to the linear module; a screw sleeve is threaded onto the screw lever; a support seat is rotatably connected to the air knife, and the support seat is slidably mounted on the linear module; the air knife is axially slidably connected to the guide rod; the air knife dynamically inserts into the screw sleeve; and the bulk density of the material is detected automatically. The air knife rotates and moves upwards, then axially upwards, entering the constant volume cylinder to clean it.

Description

Technical Field

[0001] This invention relates to the field of material testing technology, and in particular to an automatic bulk density testing device. Background Technology

[0002] During the process of purchasing and storing grain, it is necessary to test the grain's bulk density. Bulk density is an important quality indicator for grading grains such as corn and wheat. The bulk density reflects the size and shape of the grain grains, their uniformity, quality, and the depth of the ventral groove.

[0003] A comprehensive index of characteristics such as endosperm texture.

[0004] Bulk density is a key indicator in the testing of the aforementioned materials. Currently, routine testing relies heavily on manual operation, which has problems such as large human influence, high labor intensity, and difficulty in increasing the testing frequency, resulting in limited testing efficiency and consistency.

[0005] To address the above problems, we propose an automatic bulk density detection device. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an automatic bulk density detection device. This device automatically detects the bulk density of materials, freeing up labor. The air knife rotates upwards and then moves axially upwards to enter the volumetric hopper for cleaning. After cleaning, the air knife moves axially downwards and then rotates downwards to one side of the volumetric hopper, preventing it from interfering with the material discharge.

[0007] The present invention provides an automatic bulk density detection device, comprising a housing: a feed cylinder, a buffer cylinder, and a constant volume cylinder are provided on the housing, arranged sequentially from top to bottom. The feed cylinder is connected to the upper part of the housing, and a transition cylinder is fixedly connected inside the housing. The transition cylinder is located below the feed cylinder and above the buffer cylinder. A mixing rod is provided inside the transition cylinder, with its upper part extending into the interior of the feed cylinder. The buffer cylinder is fixedly connected to the inner wall of the housing. A baffle 1 is rotatably connected to the upper part of the buffer cylinder, and a baffle 2 is rotatably connected to the lower part. The baffle 1 is used to block the transition cylinder, and the baffle 2 is used to block the buffer cylinder. The constant volume cylinder is fixedly connected to the inner wall of the housing. A constant volume lever is rotatably provided above the constant volume cylinder, and a baffle 3 is rotatably provided below the constant volume cylinder. The baffle 3 is used to block the lower end of the constant volume cylinder.

[0008] A further improvement of the present invention includes a cleaning mechanism for cleaning the volume-regulating cylinder inside the housing. The cleaning mechanism includes a linear module, a screw lever, a guide rod, and an air knife. The linear module is fixedly connected to the side wall of the housing. The lower end of the screw lever is fixedly connected to the linear module, and the other end is fixedly connected to the end of the guide rod. The end of the guide rod away from the screw lever is fixedly connected to the linear module. A screw sleeve is threaded onto the screw lever. A support seat is rotatably connected to the air knife. The support seat is slidably disposed on the linear module. The air knife is axially slidably connected to the guide rod. The air knife is dynamically inserted into the screw sleeve.

[0009] In a further improvement of the present invention, the linear module is provided with an elastic telescopic rod, the fixed end of the elastic telescopic rod is fixedly connected to the linear module, the extended end of the elastic telescopic rod is rotatably connected to the lead screw sleeve, and the elastic telescopic rod is coaxially sleeved on the surface of the lead screw lever.

[0010] In a further improvement of the present invention, a drive motor is fixedly connected to the transition cylinder, a feed pipe is rotatably connected inside the transition cylinder, pulleys are fixedly fitted on the output end of the drive motor and the surface of the feed pipe respectively, a belt is wound between the two pulleys, and a mixing rod is fixedly connected to the feed pipe.

[0011] In a further improvement of the present invention, a second drive motor and a third drive motor are fixedly connected to the housing. The connection point between the central buffer cylinder at the output end of the second drive motor and the first baffle is concentric. The connection point between the third drive motor and the buffer cylinder and the second baffle is concentric. The output end of the second drive motor is fixedly connected to the first baffle.

[0012] In a further improvement of the present invention, a fourth drive motor is fixedly connected inside the housing. The center of the output end of the fourth drive motor is concentric with the connection point of the volume-regulating cylinder and the volume-regulating lever. The output end of the fourth drive motor is fixedly connected to the volume-regulating lever.

[0013] Beneficial effects of the present invention: The present invention provides an automatic bulk density detection device:

[0014] First, by using automatic detection methods to measure the bulk density of materials, labor is freed up.

[0015] 2. After the air knife rotates upward, it is converted to axial upward movement and enters the volumetric cylinder to clean the volumetric cylinder;

[0016] 3. After cleaning, the air knife is moved axially downward and then rotated downward to one side of the volumetric cylinder to avoid the air knife affecting the discharge of the volumetric cylinder.

[0017] Fourth, by starting the drive motor, the mixing rod is rotated to stir the material in the feed cylinder, thus preventing the material from accumulating inside the feed cylinder and affecting the feeding. Attached Figure Description

[0018] Figure 1 This invention provides a structural diagram of an automatic bulk density detection device.

[0019] Figure 2 An internal structural diagram of an automatic bulk density detection device provided by the present invention;

[0020] Figure 3 A structural diagram of the cleaning mechanism of an automatic bulk density detection device provided by the present invention;

[0021] Figure 4 An enlarged view of the internal structure of an automatic bulk density detection device provided by the present invention;

[0022] Figure 5 The present invention provides a structural diagram of the buffer cylinder and the constant volume cylinder of an automatic bulk density detection device;

[0023] Figure 6 This invention provides a driving diagram of the feed pipe of an automatic bulk density detection device;

[0024] Figure 7 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] In the attached diagram: 1. Housing; 2. Feed cylinder; 3. Buffer cylinder; 4. Volume-regulating cylinder; 5. Lead screw sleeve; 6. Cleaning mechanism; 7. Linear module; 8. Lead lever; 9. Guide rod; 10. Air knife; 11. Support base; 12. Elastic telescopic rod; 13. Transition cylinder; 14. Mixing rod; 15. Baffle 1; 16. Baffle 2; 17. Volume-regulating lever; 18. Baffle 3; 19. Drive motor 1; 20. Feed pipe; 21. Pulley; 22. Belt; 23. Drive motor 2; 24. Drive motor 3; 25. Drive motor 4; 26. Connecting rod; 27. Connecting through hole. Detailed Implementation

[0026] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Similarly, these embodiments are provided so that the disclosure of the present invention may be more thorough and complete.

[0027] according to Figures 1-7An automatic bulk density detection device is shown, comprising a housing 1. The housing 1 is equipped with a feed cylinder 2, a buffer cylinder 3, and a constant volume cylinder 4, arranged sequentially from top to bottom. The feed cylinder 2 is connected to the upper part of the housing 1. A transition cylinder 13 is fixedly connected inside the housing 1, positioned below the feed cylinder 2 and above the buffer cylinder 3. A mixing rod 14 is provided inside the transition cylinder 13, extending upwards into the feed cylinder 2. A drive motor 19 is fixedly connected to the transition cylinder 13, and a feed pipe is rotatably connected inside the transition cylinder 13. 20. The output end of the drive motor 19 and the surface of the feed pipe 20 are respectively fixedly fitted with pulleys 21. A belt 22 is wound between the two pulleys 21. The mixing rod 14 is fixedly connected to the feed pipe 20. Both the pulleys 21 and the belt 22 are provided with anti-slip texture. When the drive motor 19 starts, it drives the pulley 21 on it to rotate. Through the belt 22, it drives the other pulley 21 to rotate, thereby driving the feed pipe 20 to rotate. The rotating feed pipe 20 drives the mixing rod 14 to rotate. The rotation of the mixing rod 14 prevents the material from blocking the feed cylinder 2.

[0028] The buffer cylinder 3 is fixedly connected to the inner wall of the housing 1. A baffle 15 is rotatably connected to the upper part of the buffer cylinder 3, and a baffle 2 16 is rotatably connected to the lower part. Baffle 15 is used to block the transition cylinder 13, and baffle 2 16 is used to block the buffer cylinder 3. A second drive motor 23 and a third drive motor 24 are fixedly connected to the housing 1. The center rotation point of the output end of the second drive motor 23 is concentric with the connection point of the buffer cylinder 3 and the baffle 15. The connection point of the third drive motor 24 is concentric with the connection point of the buffer cylinder 3 and the baffle 2 16. The output end of the second drive motor 23 is fixedly connected to the baffle 15. When the second drive motor 23 starts, it drives the baffle 15 to rotate, opening or closing the transition cylinder 13. The output end of the third drive motor 24 is fixedly connected to the baffle 2 16. When the third drive motor 24 starts, it drives the baffle 2 16 to rotate, opening or closing the transition cylinder 13. The filling cylinder 3 can be closed or opened. The volume-fixing cylinder 4 is fixedly connected to the inner wall of the housing. A volume-fixing lever 17 is rotatably provided above the volume-fixing cylinder 4, and a baffle 18 is rotatably provided below it. The baffle 18 is used to block the lower end of the volume-fixing cylinder 4. A drive motor 25 is fixedly connected inside the housing 1. The center of the output end of the drive motor 25 is concentric with the connection point of the volume-fixing cylinder 4 and the volume-fixing lever 17. The output end of the drive motor 25 is fixedly connected to the volume-fixing lever 17. When the drive motor 25 is started, it drives the volume-fixing lever 17 to rotate, ensuring that the material entering the volume-fixing cylinder 4 has a high degree of uniformity in bulk density. The volume-fixing lever 17 reciprocates, sweeping away the excess material at the top of the volume-fixing cylinder 4, so that the surface of the material is flush with the opening of the volume-fixing cylinder 4. Since the volume of the volume-fixing cylinder 4 is a fixed value, accurate volume fixing can be achieved.

[0029] In a further improvement of the present invention, a cleaning mechanism 6 for cleaning the volume-regulating cylinder 4 is provided inside the housing 1. The cleaning mechanism 6 includes a linear module 7, a screw lever 8, a guide rod 9, and an air knife 10. The linear module 7 is fixedly connected to the side wall of the housing 1. The lower end of the screw lever 8 is fixedly connected to the linear module 7, and the other end is fixedly connected to the end of the guide rod 9. The end of the guide rod 9 away from the screw lever 8 is fixedly connected to the linear module 7. A screw sleeve 5 is threaded on the screw lever 8. A support seat 11 is rotatably connected to the air knife 10. The support seat 11 is slidably disposed on the linear module 7. The air knife 10 is axially slidably connected to the guide rod 9. The air knife 10 is dynamically inserted into the screw sleeve 5.

[0030] The specific method of dynamically inserting the air knife 10 into the lead screw sleeve 5 is as follows: the air knife 10 is fixedly connected to the plug rod 26, and the lead screw sleeve 5 is provided with a plug-in through hole 27. The plug rod 26 is dynamically inserted into the plug-in through hole 27. After the material discharge is completed, the linear module 7 is started, which drives the support seat 11 and the air knife 10 to move upward. The lead screw sleeve 5 rises under the compression of the elastic telescopic rod 12. With the assistance of the lead lever 8, the lead screw sleeve 5 rotates, thereby driving the air knife 10 to rotate through the plug rod 26, so that the air knife 10 rotates and moves upward. The air knife 10 rotates to the bottom of the constant volume cylinder 4. At this time, the plug rod 26 separates from the plug-in through hole 27, and the air knife 10 and the guide rod 9 form an axial connection. The specific method of axial connection is the use of key strips and keyways. When the linear module 7 continues to start, it drives the support seat 11 and the air knife 10 to move upward axially. The air knife 10 enters the inside of the constant volume cylinder 4 to clean the inside of the constant volume cylinder 4.

[0031] In a further improvement of the present invention, the linear module 7 is provided with an elastic telescopic rod 12. The fixed end of the elastic telescopic rod 12 is fixedly connected to the linear module 7, and the extended end of the elastic telescopic rod 12 is rotatably connected to the lead screw sleeve 5. The elastic telescopic rod 12 is coaxially sleeved on the surface of the lead screw lever 8. The elastic telescopic rod 12 facilitates pushing the lead screw sleeve 5 upward, and when the lead screw sleeve 5 moves downward, it has an upward force pushing the lead screw sleeve 5.

[0032] The buffer cylinder is equipped with a sensor to detect the degree of overflow of the material inside the buffer cylinder, and the volumetric cylinder is equipped with a weighing sensor to detect the weight of the material inside the volumetric cylinder.

[0033] principle:

[0034] Feeding and buffering: When in use, baffle 15 is opened and baffle 2 is closed. The material falls into the buffer cylinder 3 through the feed cylinder 2 and the transition cylinder 13. When the material in the buffer cylinder 3 is full and detected by the sensor, baffle 15 blocks the transition cylinder 13.

[0035] Volume transfer: When the volume transfer lever 17 is activated, the baffle 2 16 is opened, and the material in the buffer cylinder 3 falls into the volume transfer cylinder 4 under controlled conditions. This design ensures that the bulk density of the material transferred into the volume transfer cylinder 4 is highly consistent.

[0036] Leveling and weighing:

[0037] The volume control lever 17 reciprocates to sweep away excess material at the top of the volume control cylinder 4, making the material surface flush with the opening of the volume control cylinder 4. Since the volume of the volume control cylinder 4 is a fixed value, precise volume control can be achieved.

[0038] The total weight of the material in the leveled cylinder 4 is obtained by the weighing sensor, and the bulk density value can be automatically calculated using the formula: Bulk density = Material weight / Cylinder volume.

[0039] Discharge: After weighing is completed, baffle 318 opens to discharge the tested material from the system, thus ending a complete automatic testing cycle.

[0040] Cleaning: After the material discharge is completed, the linear module 7 starts, which drives the support base 11 and the air knife 10 to move upward. The lead screw sleeve 5 rises under the pressure of the elastic telescopic rod 12. With the assistance of the lead lever 8, the lead screw sleeve 5 rotates, which drives the air knife 10 to rotate through the plug rod 26, so that the air knife 10 rotates and moves upward. The air knife 10 rotates to the bottom of the constant volume cylinder 4. At this time, the plug rod 26 separates from the plug hole 27, and the air knife 10 forms an axial connection with the guide rod 9. When the linear module 7 continues to start, it drives the support base 11 and the air knife 10 to move upward axially. The air knife 10 enters the interior of the constant volume cylinder 4 to clean the interior of the constant volume cylinder 4.

[0041] After cleaning, the linear module 7 is started, which drives the support base 11 and the air knife 10 to move down. The air knife 10 moves down to the lower part of the volume-regulating cylinder 4, and the plug rod 26 is inserted into the plug hole 27. The axial connection between the air knife 10 and the guide rod 9 is separated. When the linear module 7 continues to start, the air knife 10 drives the lead screw sleeve 5 to move down. With the assistance of the lead lever 8, the lead screw sleeve 5 rotates, thereby driving the air knife 10 to rotate. The air knife 10 rotates to one side of the volume-regulating cylinder 4 to avoid the air knife 10 blocking the material discharge.

[0042] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A container weight automatic detection device comprising a housing (1), characterized in that: The shell (1) is provided with a feed cylinder (2), a buffer cylinder (3), and a volume-regulating cylinder (4), which are distributed from top to bottom; The housing (1) is equipped with a cleaning mechanism (6) for cleaning the volume-fixing cylinder (4). The cleaning mechanism (6) includes a linear module (7), a wire lever (8), a guide rod (9), and an air knife (10). The linear module (7) is fixed to the side wall of the housing (1). The lower end of the lever (8) is fixedly connected to the linear module (7), and the other end is fixedly connected to the end of the guide rod (9). The end of the guide rod (9) away from the lever (8) is fixedly connected to the linear module (7). The lever (8) is threaded with a screw sleeve (5). The air knife (10) is rotatably connected to a support seat (11). The support seat (11) is slidably mounted on the linear module (7). The air knife (10) is axially slidably connected to the guide rod (9). The air knife (10) is dynamically inserted into the screw sleeve (5). The linear module (7) is provided with an elastic telescopic rod (12). The fixed end of the elastic telescopic rod (12) is fixedly connected to the linear module (7), and the extended end of the elastic telescopic rod (12) is rotatably connected to the lead screw sleeve (5). The elastic telescopic rod (12) is coaxially sleeved on the surface of the lead screw lever (8). The feed cylinder (2) is connected to the upper part of the shell (1). A transition cylinder (13) is fixedly connected inside the shell (1). The transition cylinder (13) is located below the feed cylinder (2) and above the buffer cylinder (3). A mixing rod (14) is provided inside the transition cylinder (13). The upper part of the mixing rod (14) extends into the feed cylinder (2). A drive motor (19) is fixedly connected to the transition cylinder (13), and a feed pipe (20) is rotatably connected inside the transition cylinder (13). Pulleys (21) are fixedly sleeved on the output end of the drive motor (19) and the surface of the feed pipe (20). A belt (22) is wound between the two pulleys (21). The mixing rod (14) is fixedly connected to the feed pipe (20). The buffer cylinder (3) is fixedly connected to the inner wall of the shell (1). The upper part of the buffer cylinder (3) is rotatably connected to a baffle (15), and the lower part is rotatably connected to a baffle (16). The baffle (15) is used to block the transition cylinder (13), and the baffle (16) is used to block the buffer cylinder (3). The housing (1) is fixedly connected to a second drive motor (23) and a third drive motor (24). The connection point of the central buffer cylinder (3) and the first baffle (15) at the output end of the second drive motor (23) is concentric. The connection point of the third drive motor (24) is concentric with the connection point of the buffer cylinder (3) and the second baffle (16). The output end of the second drive motor (23) is fixedly connected to the first baffle (15).

2. The apparatus according to claim 1, wherein: The volume-regulating cylinder (4) is fixedly connected to the inner wall of the housing (1). A volume-regulating lever (17) is rotatably provided above the volume-regulating cylinder (4), and a baffle three (18) is rotatably provided below it. The baffle three (18) is used to block the lower end of the volume-regulating cylinder (4), and the volume-regulating lever (17) is located below the buffer cylinder (3).

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