Micro flow scale

Abstract

The invention discloses a micro flow scale which comprises a hopper mechanism. The hopper mechanism comprises a funnel piece, a positioning assembly and a discharging assembly, and the bottom end of the funnel piece is connected with the discharging assembly through the positioning assembly; the discharging assembly comprises a movable disc, discharging plates and a discharging motor, the movable disc is arranged below the funnel piece, the discharging motor is fixedly connected with the positioning assembly, an output shaft of the discharging motor is in transmission connection with the movable disc, and the multiple discharging plates are evenly arranged at the upper end of the movable disc; the multiple discharging plates are arranged in an arc plate shape, and the multiple discharging plates are combined end to end to form a circular ring structure in a surrounding mode. One end of each discharging plate is a fixed end and is fixedly connected with the movable disc through the fixed end, the other end of each discharging plate is a movable end and is connected with the positioning assembly through the movable end, the movable end of each discharging plate is arranged on the outer side of the fixed end of the adjacent discharging plate, and a discharging gap is formed between the movable end of each discharging plate and the fixed end of the adjacent discharging plate.

Description

Technical Field

[0001] The invention relates to the field of production equipment, in particular to a micro flow scale. Background Art

[0002] The flow scale is a weighing device for dynamically measuring bulk materials. It can quickly measure the instantaneous flow and cumulative flow through the weighing hopper of the flow scale. It has the advantages of fast weighing speed, high accuracy and easy installation. Patent No. ZL2022103312584 discloses a precise metering bacteria powder feeder, which can realize the operation of bacteria powder feeding and weighing. It includes a multi-stage silo, a rotating shaft, and a weight sensor for weighing the total material mass change in the multi-stage silo. The bottom end of the last-stage silo is open. Below the last-stage silo, the rotating shaft is provided with a bottom plate that rotates with the rotating shaft. The bottom plate is separated from the bottom end of the silo to form a peripheral discharge port for the material, and the peripheral discharge port is provided with an adjustable scraper. The present invention mainly solves the problems of large differences in material properties, large range, high precision, etc. when powder materials such as bacterial powder are added. It not only has better adaptability to powder materials, but also can achieve accurate measurement of different powder materials within a large range of several kilograms to dozens of kilograms. Without changing equipment, the ratio of the powder amount can be flexibly adjusted. It also has the characteristics of dynamic weighing continuous feeding, stable performance, accurate measurement, high precision, etc., and can be widely used in the bacterial powder addition control in organic fertilizer fermentation, batching, coating and other work sections.

[0003] The defect of this patent is that the above-mentioned multi-stage silo is generally the simplest two-stage silo, which is a trumpet-shaped structure with a larger top and a smaller bottom. The bottom, that is, the second-stage silo, is a scraper weighing silo. By adjusting the angle of the scraper at the peripheral discharge port, the discharge amount of the bacterial powder feeder is guaranteed, and stable and accurate measurement is achieved. The first-stage silo is a feed silo, which supplies material to the second-stage silo.

[0004] In the above structure, the general operation during the production process is to add a relatively large amount of material to the first-stage silo. The blades in the first-stage silo stir the material and slowly transport it downward through the bottom opening, thus avoiding the phenomenon of scaffolding during the production process. Due to the large amount of material in the first-stage silo, it requires a large power to drive. The second-stage silo, on the other hand, is for scraping and weighing. To ensure accurate measurement, the diameter and height of the structure cannot be too large to avoid large weighing errors. In other words, its diameter and height dimensions are relatively small, and it does not require a large power.

[0005] However, since the scraping and feeding, that is, the actions of the first-stage silo and the second-stage silo, are driven by the rotating shaft connecting the two silos, it will cause the loss of one aspect of the dynamic setting and the loss of the other aspect of the speed regulation.

[0006] Meanwhile, the second defect of the above structure is that the second-stage silo is not provided with a leveling structure, resulting in different heights of the materials in the second-stage silo from the inner periphery to the center, which also leads to inaccurate weighing. Summary of the Invention

[0007] The purpose of the present invention is to solve the above problems and provide a micro flow scale, which sets the power of the two-stage silo separately to match the conveying discharge and scraper discharge respectively, so as to better achieve the accuracy of material transportation and weighing.

[0008] In order to achieve the above object, the technical solution of the present invention is: A micro flow scale comprises a fixed bracket, a hopper mechanism, and a weighing sensor. The hopper mechanism is connected to the fixed bracket and supports the hopper mechanism through the fixed bracket; the weighing sensor is arranged between the fixed bracket and the hopper mechanism and weighs the overall weight of the hopper mechanism; the hopper mechanism comprises a funnel piece, a positioning assembly, and a discharging assembly. The bottom end of the funnel piece is connected to the discharging assembly through the positioning assembly; the discharging assembly comprises a movable disc, a discharging plate, and a discharging motor. The movable disc is arranged below the funnel piece, the discharging motor is fixedly connected to the positioning assembly, and the output shaft of the discharging motor is transmission-connected to the movable disc. A plurality of discharging plates are evenly arranged on the upper end of the movable disc, and the plurality of discharging plates are all arranged in the shape of circular arc plates and are combined end to end to form a circular ring structure; one end of the discharging plate is a fixed end and is fixedly connected to the movable disc through the fixed end, and the other end of the discharging plate is a movable end and is connected to the positioning assembly through the movable end. The movable end of the discharging plate is arranged outside the fixed end of the adjacent discharging plate, and a discharging gap is provided between the movable end of the discharging plate and the fixed end of the adjacent discharging plate.

[0009] Furthermore, the positioning assembly includes a fixed flange, a column, a positioning ring, and a base plate. The fixed flange is bolted to the mounting flange arranged at the bottom edge of the funnel piece. The edge of the fixed flange is rotatably connected to a plurality of columns and is connected to the positioning ring arranged below the fixed flange through the columns. The inner wall of the positioning ring is fixedly connected to the base plate through a plurality of positioning support plates. The bottom end of the base plate is fixedly connected to the discharging motor. The output shaft of the discharging motor passes through the center position of the base plate and is fixedly connected to the center position of the movable disk arranged above the base plate; the plurality of columns are arranged corresponding to the plurality of discharging plates, and the movable ends of the discharging plates are bent outward and connected to the outer peripheral side walls of the corresponding columns after bending.

[0010] Furthermore, the positioning assembly also includes an adjusting cylinder and a linkage ring, one end of the adjusting cylinder is connected to the pin shaft at the top of the fixed flange, the other end of the adjusting cylinder is connected to the pin shaft at one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the top of any column; the middle parts of the several columns are fixedly connected with a first connecting ear and are connected to the linkage ring pin shaft arranged between the several columns through the first connecting ear.

[0011] Furthermore, a position sensor is fixedly connected to the top edge of the fixed flange, and the position sensor is arranged on one side of the top of the column. A second connecting ear is fixedly connected to the top of the column and the second connecting ear can rotate with the column. The second connecting ear is located on one side of the position sensor and contacts the position sensor after rotating to a specified angle with the column.

[0012] Furthermore, a discharge hole is provided on the bottom plate, the movable disk is located above the bottom plate, the bottom end of the movable disk is fixedly connected to a material sweeping protrusion and the movable disk drives the material sweeping protrusion to rotate to sweep the material in the gap between the movable disk and the bottom plate into the discharge hole for discharge.

[0013] Furthermore, a guard plate assembly is arranged between the movable disk and the fixed flange; the guard plate assembly includes a blanking mounting ring and a blanking guard plate. The blanking mounting ring is ring-shaped and is arranged at the upper end of the discharge plate. The top of the blanking mounting ring is fixedly connected to the fixed flange by bolts. A guard plate groove is provided on the inner wall of the blanking mounting ring and is embedded with the bottom end of the blanking guard plate through the guard plate groove. The top end of the blanking guard plate is abutted against the lower end surface of the fixed flange to form a blanking cavity with an opening at the top through the blanking guard plate, the movable disk and the fixed flange. The blanking cavity is connected to the interior of the funnel through the hollow material hole arranged on the fixed flange.

[0014] Furthermore, the funnel piece is a funnel structure with a large opening at the top and a small opening at the bottom. The top of the funnel piece is bolted to a top cover. An automatic feeding port connected to an automatic feeding device is provided on one side of the top of the top cover, and a manual feeding port is provided on the other side of the top of the top cover. A cover plate that can be opened and closed is provided on the top of the manual feeding port.

[0015] Furthermore, a stirring assembly is provided in the funnel piece; the stirring assembly includes a stirring motor, a central shaft, and a stirring rod. The stirring motor is fixedly connected to the center position of the upper end of the top cover, and the stirring motor is connected to one end of the central shaft through a coupling. The other end of the central shaft passes through the center position of the top cover and is rotatably connected to a bearing hole provided at the center position of the fixed flange. The stirring rod is located in the funnel piece and one end of the stirring rod is fixedly connected to the central shaft.

[0016] Furthermore, several trowel plates are arranged in the discharge cavity, the bottom ends of several trowel plates are arranged horizontally, and several trowel plates are arranged at equal intervals along the circumferential direction of the central axis. One end of the trowel plate is fixedly connected to the outer peripheral side wall of the central axis passing through the bottom of the bearing hole.

[0017] Furthermore, three fixing clips are evenly spaced on the outer periphery of the top of the funnel and are connected to the fixed bracket through the three fixing clips; the fixed bracket includes three support columns, the three support columns are arranged corresponding to the three fixing clips, and a reinforcement plate is fixedly connected between adjacent support columns; the tops of the three support columns are fixedly connected to a limiting member, and the bottom end of the limiting member is fixedly connected to a weighing sensor, the fixing clip is nested inside the corresponding limiting member and the bottom end of the fixing clip is connected to the top of the weighing sensor.

[0018] Compared with the prior art, the present invention has the following advantages and positive effects: The present invention adopts the design of arranging a discharging assembly under the funnel part, so that when in use, the material in the funnel part will fall onto the movable plate. Under the action of the discharging motor, the material falling on the movable plate will be scattered outwards under the action of centrifugal force, and finally flow out from the discharging gap between two adjacent discharging plates. The discharging gap is small, and at the same time, combined with centrifugal force as the discharging action, a micro-discharging operation of powder materials can be realized; and, in the present invention, one end of the discharging plate is fixed to the movable plate, and the other end is connected to the positioning assembly as a movable end. The position of the movable end of the discharging plate can be adjusted by the positioning assembly, thereby realizing the adjustment operation of the width of the discharging gap between adjacent discharging plates. By adjusting different discharging gap widths, the discharging flow rate of the material can be controlled, effectively realizing the discharging flow rate adjustment effect of the micro-flow scale, and meeting different usage requirements; On the other hand, in the present invention, a stirring assembly is provided inside the funnel to carry out stirring and discharging operations, and a discharging motor is provided at the bottom of the movable plate to carry out material discharging operations. The stirring motor in the stirring assembly and the storage motor complement each other and interfere with each other, thereby avoiding the situation where stirring speed regulation and discharging speed regulation are neglected; and, through the separate functional control of the stirring motor and the discharging motor, the driving power of the entire device is effectively increased, and the structural size of the entire device can be significantly increased, which will not cause any impact on the metering accuracy of the flow scale; at the same time, the stirring motor will drive the screed plate in the discharging cavity to rotate during the stirring operation, and the screed plate can flatten the powder material in the discharging cavity, so that the powder material can flow out evenly from the four discharging gaps, solving the problem of uneven material discharging and inaccurate weighing of the flow scale due to inconsistent material stacking height, and further improving the use effect of the micro flow scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional structural diagram of the present invention; Figure 3 This is the assembly structure diagram of the fixed bracket and the funnel piece; Figure 4 It is the assembly structure diagram of the positioning component and the discharge component; Figure 5 This is the connection structure diagram of the column and the linkage ring; Figure 6 This is the connection structure diagram between the column and the discharge plate; Figure 7 This is the connection structure diagram between the bottom plate and the discharge motor; Figure 8 It is the connection structure diagram of the movable plate and the discharge plate; Figure 9 This is a bottom-up structural diagram of the movable disk; Figure 10 It is a structural diagram of the connection between the positioning component and the stirring component; Figure 11 Schematic diagram of the structure of the stirring component. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the scope of protection of the present invention.

[0022] like Figures 1 to 11 As shown, this embodiment discloses a micro flow scale, including a fixed bracket 2, a hopper mechanism, and a weighing sensor 10. The hopper mechanism is connected to the fixed bracket 2 and supported by the fixed bracket 2. The weighing sensor 10 is arranged between the fixed bracket 2 and the hopper mechanism and weighs the entire weight of the hopper mechanism. The hopper mechanism includes a funnel piece 1, a positioning assembly, and a discharging assembly. The bottom end of the funnel piece 1 is connected to the discharging assembly through the positioning assembly; the discharging assembly includes a movable disc 19, a discharging plate 18, and a discharging motor 17. The movable disc 19 is arranged below the funnel piece 1, and the discharging motor 17 is fixedly connected to the positioning assembly. The output shaft of the discharging motor 17 is transmission-connected to the movable disc 19. Four discharging plates 18 are evenly arranged on the upper end of the movable disc 19. The four discharging plates 18 are all arranged in the shape of circular arc plates and the four discharging plates 18 are combined end to end to form a circular ring structure; one end of the discharging plate 18 is a fixed end and is fixedly connected to the movable disc 19 through the fixed end, and the other end of the discharging plate 18 is a movable end and is connected to the positioning assembly through the movable end. The movable end of the discharging plate 18 is arranged outside the fixed end of the adjacent discharging plate, and a discharging gap 1801 is provided between the movable end of the discharging plate 18 and the fixed end of the adjacent discharging plate.

[0023] The circular structure formed by the combination of four discharge plates surrounds the top edge of the movable disk. The material in the funnel falls onto the movable disk and then flows out from the discharge gap between adjacent discharge plates, achieving the discharge effect of powder material.

[0024] The positioning assembly includes a fixed flange 11, a column 13, a positioning ring 12, and a base plate 20. The fixed flange 11 is bolted to the mounting flange arranged at the bottom edge of the funnel member 1. The edge of the fixed flange 11 is rotatably connected to four columns 13 and is connected to the positioning ring 12 arranged below the fixed flange 11 through the columns 13. The inner wall of the positioning ring 12 is fixedly connected to the base plate 20 through four positioning support plates 23. The bottom end of the base plate 20 is fixedly connected to the discharging motor 17. The output shaft of the discharging motor 17 passes through the center position of the base plate 20 and is fixedly connected to the center position of the movable disk 19 arranged above the base plate 20; the four columns 13 are arranged corresponding to the four discharging plates 18, and the movable ends of the discharging plates 18 are bent outward and connected to the outer peripheral side walls of the corresponding columns 13 after bending.

[0025] A guard plate assembly is arranged between the movable disk 19 and the fixed flange 11; the guard plate assembly includes a blanking mounting ring 14 and a blanking guard plate 15. The blanking mounting ring 14 is ring-shaped and is arranged at the upper end of the discharge plate 18. The top of the blanking mounting ring 14 is fixedly connected to the fixed flange 11 by bolts. A guard plate groove is provided on the inner wall of the blanking mounting ring 14 and is embedded with the bottom end of the blanking guard plate 15 through the guard plate groove. The top of the blanking guard plate 15 is in contact with the lower end surface of the fixed flange 11, so as to form a blanking cavity 9 with an opening at the top by the blanking guard plate 15, the movable disk 19 and the fixed flange 11. The blanking cavity 9 is connected to the interior of the funnel 1 through the hollow material hole 1101 arranged on the fixed flange 11.

[0026] The positioning component can mainly realize the installation operation of the discharge component and the guard plate component. A discharge cavity is formed by combining the discharge guard plate, the fixed flange and the movable plate. When performing the discharge operation, the material in the funnel piece will first enter the discharge cavity through the hollow material hole on the fixed flange, and then the material in the discharge cavity will rotate with the movable plate and flow out from the discharge gap; it divides the entire flow into two spaces, the inside of the funnel piece and the inside of the discharge cavity, avoiding the situation where the material in the funnel piece causes excessive bearing pressure on the movable plate, making it convenient for the movable plate to perform the discharge operation through the rotation action, further improving the use effect of the present invention.

[0027] The positioning assembly also includes an adjusting cylinder 21 and a linkage ring 16. One end of the adjusting cylinder 21 is connected to the top pin of the fixed flange 11, and the other end of the adjusting cylinder 21 is connected to one end of the connecting rod 22. The other end of the connecting rod 22 is fixedly connected to the top of any column 13. The middle part of the four columns 13 is fixedly connected with a first connecting ear 1301 and is pin-connected to the linkage ring 16 arranged between the four columns 13 through the first connecting ear 1301.

[0028] The top edge of the fixed flange 11 is fixedly connected to a position sensor 24, which is arranged on one side of the top of the column 13. The top of the column 13 is fixedly connected to a second connecting ear 1302, and the second connecting ear 1302 can rotate with the column 13. The second connecting ear 1302 is located on one side of the position sensor 24 and contacts the position sensor 24 after rotating to a specified angle with the column 13.

[0029] When the width of the discharge gap needs to be adjusted, it is only necessary to control the adjusting cylinder to extend. The extending action drives the column connected to it to rotate through the connecting rod. The rotation of the column drives the linkage ring to rotate through the first connecting ear. The rotation of the linkage ring drives the four columns to rotate at the same angle. When the four columns rotate, they will pull the movable ends of the four discharge plates to rotate, thereby changing the width of the discharge gap between adjacent discharge plates, and finally achieving the effect of adjusting the width of the discharge gap.

[0030] A discharge hole 2001 is provided on the bottom plate 20, and the movable disk 19 is located above the bottom plate 20. The bottom end of the movable disk 19 is fixedly connected to a sweeping protrusion 1901, and the sweeping protrusion 1901 is driven by the movable disk 19 to rotate, so as to sweep the material in the gap between the movable disk 19 and the bottom plate 20 into the discharge hole 2001 for discharge.

[0031] When the powder material flows out from the discharge gap, it will flow out through the gap between the positioning ring and the bottom plate. Some of the material may float between the bottom plate and the movable disk. When the movable disk rotates, these materials will be discharged from the discharge hole on the bottom plate through the action of the sweeping protrusion, avoiding the situation where the material accumulates between the movable disk and the bottom plate and affects the normal rotation of the movable disk.

[0032] The funnel member 1 is a funnel structure with a large opening at the top and a small opening at the bottom. The top of the funnel member 1 is bolted to a top cover 3. An automatic feeding port 301 connected to an automatic feeding device is provided on one side of the top of the top cover 3. A manual feeding port is provided on the other side of the top of the top cover 3. A cover plate member 4 that can be opened and closed is provided on the top of the manual feeding port.

[0033] Normally, the automatic feeding equipment will automatically feed the materials according to the weighing status of the flow scale. When the automatic feeding equipment fails or for other reasons, manual feeding can be performed through the manual feeding port.

[0034] A stirring assembly is provided in the funnel part 1; the stirring assembly includes a stirring motor 5, a central shaft 6, and a stirring rod 7. The stirring motor 5 is fixedly connected to the center position of the upper end of the top cover 3. The stirring motor 5 is connected to the top end of the central shaft 6 through a coupling. The bottom end of the central shaft 6 passes through the center position of the top cover 3 and is rotatably connected to the bearing hole 1102 provided at the center position of the fixed flange 11. The stirring rod 7 is located in the funnel part 1 and one end of the stirring rod 7 is fixedly connected to the central shaft 6.

[0035] Four trowel plates 8 are arranged in the unloading cavity 9. The bottom ends of the four trowel plates 8 are arranged horizontally. The four trowel plates 8 are arranged at equal intervals along the circumferential direction of the central axis 6. One end of the trowel plate 8 is fixedly connected to the outer peripheral side wall of the central axis 6 that passes through the bottom of the bearing hole 1102.

[0036] When the stirring assembly is working, the stirring rod is used to stir the material at the bottom end of the funnel, so that the material enters the discharge cavity through the hollow material hole on the fixed flange, avoiding the situation where the material is blocked at the bottom end of the funnel; the material in the discharge cavity can be stirred and smoothed by four rotating screed plates, so that the four discharge gaps formed by the four discharge plates can achieve uniform discharge operation, further improving the use effect of the present invention.

[0037] The funnel 1 is provided with three fixing buckles 101 at equal intervals on the outer periphery of the top end and is connected to the fixed bracket 2 through the three fixing buckles 101; the fixed bracket 2 includes three support columns 201, and the three support columns 201 are provided corresponding to the three fixing buckles 101, and a reinforcement plate 203 is fixedly connected between adjacent support columns 201; the top ends of the three support columns 201 are fixedly connected to the limiting members 202, and the bottom ends of the limiting members 202 are fixedly connected to the weighing sensor 10, and the fixing buckles 101 are nested inside the corresponding limiting members 202 and the bottom ends of the fixing buckles 101 are connected to the top of the weighing sensor 10.

[0038] The fixed bracket not only provides stable support for the funnel and the material inside the funnel, but also can realize the weighing effect of the funnel and the material in the discharge cavity by installing a weighing sensor between the support column and the funnel. It can calculate the material discharge flow rate, discharge flow rate and other parameters of the material by instantly weighing the weight of the funnel and the material in the discharge cavity. The operation is simple and quick, which improves the convenience of using the flow scale.

[0039] The present invention adopts the design of arranging a discharging assembly under the funnel part, so that when in use, the material in the funnel part will fall onto the movable plate. Under the action of the discharging motor, the material falling on the movable plate will be scattered outwards under the action of centrifugal force, and finally flow out from the discharging gap between two adjacent discharging plates. The discharging gap is small, and at the same time, combined with centrifugal force as the discharging action, a micro-discharging operation of powder materials can be realized; and, in the present invention, one end of the discharging plate is fixed to the movable plate, and the other end is connected to the positioning assembly as a movable end. The position of the movable end of the discharging plate can be adjusted by the positioning assembly, thereby realizing the adjustment operation of the width of the discharging gap between adjacent discharging plates. By adjusting different discharging gap widths, the discharging flow rate of the material can be controlled, effectively realizing the discharging flow rate adjustment effect of the micro-flow scale, and meeting different usage requirements; On the other hand, in the present invention, a stirring assembly is provided inside the funnel to carry out stirring and discharging operations, and a discharging motor is provided at the bottom of the movable plate to carry out material discharging operations. The stirring motor in the stirring assembly and the storage motor complement each other and interfere with each other, thereby avoiding the situation where stirring speed regulation and discharging speed regulation are neglected; and, through the separate functional control of the stirring motor and the discharging motor, the driving power of the entire device is effectively increased, and the structural size of the entire device can be significantly increased, which will not cause any impact on the metering accuracy of the flow scale; at the same time, the stirring motor will drive the screed plate in the discharging cavity to rotate during the stirring operation, and the screed plate can flatten the powder material in the discharging cavity, so that the powder material can flow out evenly from the four discharging gaps, solving the problem of uneven material discharging and inaccurate weighing of the flow scale due to inconsistent material stacking height, and further improving the use effect of the micro flow scale.

Claims

1. A micro flow scale comprising a fixed bracket, a hopper mechanism, and a weighing sensor, wherein the hopper mechanism is connected to the fixed bracket and supported by the fixed bracket; the weighing sensor is disposed between the fixed bracket and the hopper mechanism and measures the overall weight of the hopper mechanism; and characterized in that: The hopper mechanism includes a funnel piece, a positioning assembly, and a discharging assembly. The bottom end of the funnel piece is connected to the discharging assembly through the positioning assembly; the discharging assembly includes a movable disc, a discharging plate, and a discharging motor. The movable disc is arranged below the funnel piece, the discharging motor is fixedly connected to the positioning assembly, and the output shaft of the discharging motor is transmission-connected to the movable disc. A plurality of discharging plates are evenly arranged on the upper end of the movable disc, and the plurality of discharging plates are all arranged in the shape of circular arc plates and the plurality of discharging plates are combined end to end to form a circular ring structure; one end of the discharging plate is a fixed end and is fixedly connected to the movable disc through the fixed end, the other end of the discharging plate is a movable end and is connected to the positioning assembly through the movable end, the movable end of the discharging plate is arranged outside the fixed end of the adjacent discharging plate, and a discharging gap is provided between the movable end of the discharging plate and the fixed end of the adjacent discharging plate.

2. The micro flow scale according to claim 1, characterized in that: The positioning assembly includes a fixed flange, a column, a positioning ring, and a base plate. The fixed flange is bolted to the mounting flange arranged at the bottom edge of the funnel piece. The edge of the fixed flange is rotatably connected to a plurality of columns and is connected to the positioning ring arranged below the fixed flange through the columns. The inner wall of the positioning ring is fixedly connected to the base plate through a plurality of positioning support plates. The bottom end of the base plate is fixedly connected to the discharging motor. The output shaft of the discharging motor passes through the center position of the base plate and is fixedly connected to the center position of the movable disk arranged above the base plate; the plurality of columns are arranged corresponding to the plurality of discharging plates, and the movable ends of the discharging plates are bent outward and connected to the outer peripheral side walls of the corresponding columns after bending.

3. The micro flow scale according to claim 2, characterized in that: The positioning assembly also includes an adjusting cylinder and a linkage ring, one end of the adjusting cylinder is connected to the pin shaft at the top of the fixed flange, the other end of the adjusting cylinder is connected to the pin shaft at one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the top of any column; the middle parts of the several columns are fixedly connected to the first connecting ear and are connected to the linkage ring pin shaft arranged between the several columns through the first connecting ear.

4. The micro flow scale according to claim 3, wherein: A position sensor is fixedly connected to the top edge of the fixed flange, and the position sensor is arranged on one side of the top of the column. A second connecting ear is fixedly connected to the top of the column and the second connecting ear can rotate with the column. The second connecting ear is located on one side of the position sensor and contacts the position sensor after rotating to a specified angle with the column.

5. The micro flow scale according to claim 2, characterized in that: A discharge hole is provided on the bottom plate, the movable plate is located above the bottom plate, the bottom end of the movable plate is fixedly connected to a sweeping protrusion, and the sweeping protrusion is driven by the movable plate to rotate, so as to sweep the material in the gap between the movable plate and the bottom plate into the discharge hole for discharge.

6. The micro flow scale according to claim 2, characterized in that: A guard plate assembly is arranged between the movable disk and the fixed flange; the guard plate assembly includes a blanking mounting ring and a blanking guard plate. The blanking mounting ring is ring-shaped and is arranged at the upper end of the discharge plate. The top of the blanking mounting ring is fixedly connected to the fixed flange by bolts. A guard plate groove is provided on the inner wall of the blanking mounting ring and is embedded with the bottom end of the blanking guard plate through the guard plate groove. The top end of the blanking guard plate is in contact with the lower end surface of the fixed flange to form a blanking cavity with an opening at the top by the blanking guard plate, the movable disk and the fixed flange. The blanking cavity is connected to the inside of the funnel through the hollow material hole arranged on the fixed flange.

7. The micro flow scale according to claim 6, characterized in that: The funnel piece is a funnel structure with a large opening at the top and a small opening at the bottom. The top of the funnel piece is bolted to a top cover. An automatic feeding port connected to an automatic feeding device is provided on one side of the top of the top cover, and a manual feeding port is provided on the other side of the top of the top cover. A cover plate that can be opened and closed is provided on the top of the manual feeding port.

8. The micro flow scale according to claim 6, characterized in that: A stirring assembly is provided in the funnel piece; the stirring assembly includes a stirring motor, a central shaft, and a stirring rod. The stirring motor is fixedly connected to the center position of the upper end of the top cover. The stirring motor is connected to one end of the central shaft through a coupling. The other end of the central shaft passes through the center position of the top cover and is rotatably connected to a bearing hole provided at the center position of the fixed flange. The stirring rod is located in the funnel piece and one end of the stirring rod is fixedly connected to the central shaft.

9. The micro flow scale according to claim 8, characterized in that: Several trowel plates are arranged in the discharge cavity, the bottom ends of the several trowel plates are arranged horizontally, and the several trowel plates are arranged at equal intervals along the circumferential direction of the central axis. One end of the trowel plate is fixedly connected to the outer peripheral side wall of the central axis passing through the bottom of the bearing hole.

10. The micro flow scale according to claim 1, characterized in that: Three fixing clips are evenly spaced on the outer periphery of the top of the funnel and are connected to the fixed bracket through the three fixing clips; the fixed bracket includes three support columns, which are arranged corresponding to the three fixing clips, and a reinforcement plate is fixedly connected between adjacent support columns; the tops of the three support columns are fixedly connected to a limiting member, and the bottom end of the limiting member is fixedly connected to a weighing sensor, the fixing clip is nested inside the corresponding limiting member and the bottom end of the fixing clip is connected to the top of the weighing sensor.

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