High-precision blending equipment for multi-bin powdery materials

Abstract

The utility model relates to the technical field of material proportioning and transporting tools, in particular to multi-bin high-precision blending equipment for powdery materials, which comprises a conveyor belt, a vibrator, a U-shaped material collecting pipe, a stirring mechanism and a plurality of bins. The multiple bins are arranged in an array mode in the sliding direction of the conveying belt. A weight sensor is arranged on the stock bin; the vibrator is arranged on the conveying belt; the U-shaped material collecting pipe is elastically connected with an output shaft of the vibrator; a first pipe orifice and a second pipe orifice are formed in the top end of the U-shaped material collecting pipe; the bottom end of the stock bin is connected with a hose; the free end of the hose can be inserted into the first pipe orifice or the second pipe orifice; the stirring mechanism is arranged below the tail end of the conveying belt, and a discharging opening is formed in the top end of the stirring mechanism. The U-shaped structure of the U-shaped material collecting pipe can effectively prevent powder from raising dust, and high-precision metering of feeding of all the stock bins is achieved. The U-shaped material collecting pipe is in the same way during discharging, the mobility of the materials in the U-shaped material collecting pipe is improved through the U-shaped structure, and the situation that the materials are stuck can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material proportioning and transportation tools, and particularly relates to a high-precision dispensing device for powdery materials in multiple bins. Background Art

[0002] Material dispensing devices are commonly used in the food production field and the chemical industry field. The material dispensing device transports various powdery materials and / or liquid materials to a stirrer according to a certain ratio, and the stirrer fully stirs the materials to provide a mixed reagent for the subsequent process.

[0003] Existing material dispensing devices for dispensing multiple powdery materials generally include a stirrer, a conveyor belt, and multiple bins; the multiple bins store various powdery materials correspondingly; a weight sensor is arranged on the conveyor belt, and the weight of the dispensed material is monitored through the weight sensor to achieve the purpose of precise dispensing; the bin dispenses the material onto the conveyor belt, and the conveyor belt then transports the material to the stirrer; the stirrer is located below the end of the conveyor belt, and a discharge port is opened at the top of the stirrer, so that the material can naturally fall into the stirrer when it moves to the end of the conveyor belt; clear water is added into the stirrer, and the stirrer fully stirs the materials with the completed ratio.

[0004] In order to improve the proportioning accuracy of multiple materials, that is, to improve the weight dispensing accuracy of multiple materials, existing material dispensing devices usually set a vibration motor at the discharge port of the bin to shake the residual material at the discharge port onto the conveyor belt, compensate for the weight dispensing of the material on the conveyor belt, and improve the weight dispensing accuracy of each material in the stirrer. However, the discharge port of the bin is generally a screw rod discharge, and the installation difficulty of the vibration motor is relatively large and the integrated vibration effect is poor. Secondly, the powdery material is prone to dust during the dispensing process, resulting in a reduction in the proportioning accuracy of multiple materials. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a high-precision dispensing device for powdery materials in multiple bins, which solves the technical problem that the existing high-precision dispensing device for powdery materials in multiple bins has a low proportioning accuracy of materials.

[0007] (2) Technical Solutions

[0008] In order to achieve the above object, the high-precision dispensing device for powdery materials in multiple bins of the utility model includes a conveyor belt, a vibrator, a U-shaped collecting pipe, a stirring mechanism, and multiple bins;

[0009] The multiple bins are arranged in an array along the sliding direction of the conveyor belt; a weight sensor is arranged on the bin;

[0010] The vibrator is arranged on the conveyor belt;

[0011] The U-shaped aggregate pipe is elastically connected to the output shaft of the vibrator;

[0012] A first pipe orifice and a second pipe orifice are formed at the top end of the U-shaped aggregate pipe; a flexible pipe is connected to the bottom end of the silo; the free end of the flexible pipe can be inserted into the first pipe orifice or the second pipe orifice;

[0013] The stirring mechanism is arranged below the end of the conveyor belt, and a discharge opening is arranged at the top end of the stirring mechanism.

[0014] Optionally, the U-shaped aggregate pipe comprises an arc-shaped pipe and a pair of straight pipes;

[0015] The pair of straight pipes are correspondingly communicated with two pipe orifices of the arc-shaped pipe;

[0016] The free end of the flexible pipe can be inserted into the straight pipe.

[0017] Optionally, a sealing plate is hinged to the second pipe orifice; a counterweight is arranged at the top end of the sealing plate;

[0018] The free end of the flexible pipe can be inserted into the first pipe orifice.

[0019] Optionally, the flexible pipe is a frustum-shaped flexible pipe;

[0020] The small-diameter end of the flexible pipe is communicated with the silo; the large-diameter end of the flexible pipe is inserted into the straight pipe;

[0021] When the U-shaped aggregate pipe vibrates along the axial direction of the output shaft, the outer wall of the flexible pipe can be abutted against the inner wall of the straight pipe.

[0022] Optionally, the vibrator comprises a vibration machine, a T-shaped shaft, a spring and a sleeve;

[0023] The vibration machine is installed on the conveyor belt;

[0024] The small-diameter end of the T-shaped shaft is connected to the vibration machine, and the other end is slidably connected to the inner wall of the sleeve;

[0025] The top end of the sleeve is connected to the U-shaped aggregate pipe; an annular plate is coaxially arranged at the bottom end of the sleeve;

[0026] The spring is sleeved on the T-shaped shaft; the spring is arranged between the T-shaped shaft and the annular plate.

[0027] Optionally, a shock pad is arranged at the bottom end of the vibrator;

[0028] The shock pad is connected to the conveyor belt.

[0029] Optionally, the stirring mechanism includes a feed barrel, a blender, a first rotating shaft, and a second rotating shaft;

[0030] The feed barrel is arranged below the end of the conveyor belt;

[0031] The blender is arranged on the outer wall of the feed barrel;

[0032] The first rotating shaft and the second rotating shaft are respectively rotatably connected to the right inner wall and the left inner wall of the feed barrel; first gears and second gears are respectively arranged at the free ends of the first rotating shaft and the second rotating shaft, and the first gears and the second gears are meshed and driven;

[0033] Blades are arranged on both the first rotating shaft and the second rotating shaft.

[0034] Optionally, the stirring mechanism further includes a third rotating shaft;

[0035] One end of the third rotating shaft is rotatably connected to the inner wall bottom surface of the feed barrel, and a transmission bevel gear is arranged at the other end;

[0036] Both the first gear and the second gear are bevel gears; the first gear and the second gear are respectively meshed and driven with the transmission bevel gear.

[0037] Optionally, the stirring mechanism further includes a sealing box;

[0038] The first rotating shaft, the second rotating shaft, and the third rotating shaft are all rotatably connected to the sealing box;

[0039] The first gear, the second gear, and the transmission bevel gear are all arranged inside the sealing box.

[0040] (III) Advantageous Effects

[0041] The advantageous effects of the present utility model are as follows:

[0042] A weight sensor is arranged on the silo, and the weight of the silo is directly measured through the weight sensor. Compared with the traditional measurement method on the belt, the influence of external elastic components on the measurement result is effectively avoided, and the measurement accuracy and response of the weight sensor are faster.

[0043] The free end of the hose can be inserted into the first pipe orifice or the second pipe orifice, which can effectively prevent powder from raising dust and realize the accurate feeding of the silo to the U-shaped aggregate pipe. Moreover, since the U-shaped aggregate pipe is U-shaped, the U-shaped structure itself can effectively prevent powder from raising dust; and when the powdery material falls into the U-shaped aggregate pipe through the first pipe orifice or the second pipe orifice, the material will further flow to the bottom of the U-shaped aggregate pipe, further preventing powder from raising dust and realizing the high-precision measurement of the feeding of each silo. Similarly, when the U-shaped aggregate pipe discharges materials, when the first pipe orifice and the second pipe orifice face downward, the U-shaped structure improves the fluidity of the material inside the U-shaped aggregate pipe, and the material is more likely to fall out of the U-shaped aggregate pipe, which can avoid the situation of material jamming.

[0044] The U-shaped aggregate pipe is elastically connected to the output shaft of the vibrator, so that the U-shaped aggregate pipe can vibrate during both the feeding and discharging processes. During feeding, the vibration generated by the U-shaped aggregate pipe can, on the one hand, cause the powder inside the U-shaped aggregate pipe to gather towards its bottom, preventing dust from raising and facilitating subsequent feeding of the silo; on the other hand, the U-shaped aggregate pipe can drive the hose to vibrate, shaking out the residual material adhering to the hose and improving the feeding accuracy of the silo. During discharging, the vibration generated by the U-shaped aggregate pipe can shake out the material inside it, avoiding excessive adhesion of material inside the U-shaped aggregate pipe and reducing the material ratio accuracy in the mixing mechanism, and improving the product quality. Description of the Drawings

[0045] Figure 1 It is a schematic structural diagram of the high-precision dispensing equipment for powdery materials in multiple silos of the present invention;

[0046] Figure 2 It is a schematic structural diagram of the U-shaped aggregate pipe of the present invention;

[0047] Figure 3 It is a schematic diagram of the high-precision dispensing equipment for powdery materials in multiple silos of the present invention at the first discharging station;

[0048] Figure 4 It is a schematic diagram of the high-precision dispensing equipment for powdery materials in multiple silos of the present invention at the second discharging station;

[0049] Figure 5 It is a docking schematic diagram of the U-shaped aggregate pipe and the hose of the present invention;

[0050] Figure 6 It is a schematic structural diagram of the vibrator of the present invention;

[0051] Figure 7 It is a schematic structural diagram of the mixing mechanism of the present invention.

[0052]

Explanation of the Reference Numerals in the Drawings

[0053] 1: conveyor belt

[0054] 2: Vibrator; 21: Vibration motor; 22: T-shaped shaft; 23: Spring; 24: Sleeve; 241: Annular plate; 25: Shock pad;

[0055] 3: U-shaped aggregate pipe; 31: First pipe orifice; 32: Second pipe orifice; 33: Arc-shaped pipe; 34: Straight pipe; 35: Sealing plate; 351: Counterweight;

[0056] 4: Mixing mechanism; 41: Feed barrel; 42: Mixer; 43: First rotating shaft; 431: First gear; 44: Second rotating shaft; 441: Second gear; 45: Blade; 46: Third rotating shaft; 461: Driving bevel gear; 47: Sealing box;

[0057] 5: Silo; 51: Hose. Detailed implementation mode

[0058] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific implementation modes.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0060] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; "connection" can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0062] See Figure 1 and Figure 2, the present utility model provides a high-precision dispensing device for powdery materials in multiple bins. The high-precision dispensing device includes a conveyor belt 1, a vibrator 2, a U-shaped aggregate pipe 3, a stirring mechanism 4, and multiple bins 5; the multiple bins 5 are arranged in an array along the sliding direction of the conveyor belt 1; a weight sensor is provided on the bin 5; the vibrator 2 is arranged on the conveyor belt 1; the U-shaped aggregate pipe 3 is elastically connected to the output shaft of the vibrator 2; a first pipe orifice 31 and a second pipe orifice 32 are provided at the top end of the U-shaped aggregate pipe 3; a flexible hose 51 is connected to the bottom end of the bin 5; the free end of the flexible hose 51 can be inserted into the first pipe orifice 31 or the second pipe orifice 32; the stirring mechanism 4 is arranged below the end of the conveyor belt 1, and a discharge port is provided at the top end of the stirring mechanism 4.

[0063] In this embodiment, the discharge port of the bin 5 uses a screw rod for discharging, and the weight sensor monitors the weight of the bin 5. The flexible hose 51 is easy to install on the discharge port of the bin 5. Compared with a vibrating bin 5, it is easier to vibrate the flexible hose 51 and the efficiency is higher.

[0064] A weight sensor is provided on the bin 5 to directly measure the weight of the bin 5 through the weight sensor. Compared with the traditional measurement method on the conveyor belt, it effectively avoids the influence of external elastic components on the measurement result, and the measurement accuracy and response of the weight sensor are faster.

[0065] The free end of the flexible hose 51 can be inserted into the first pipe orifice 31 or the second pipe orifice 32, which can effectively prevent powder dust from flying and realize the accurate feeding of the bin 5 to the U-shaped aggregate pipe 3. Moreover, since the U-shaped aggregate pipe 3 is U-shaped, the U-shaped structure itself can effectively prevent powder dust from flying; and when the powdery material falls into the U-shaped aggregate pipe 3 through the first pipe orifice 31 or the second pipe orifice 32, the material will further flow to the bottom of the U-shaped aggregate pipe 3, further preventing powder dust from flying and realizing the high-precision measurement of the feeding of each bin 5. The same is true when the U-shaped aggregate pipe 3 discharges materials. When the first pipe orifice 31 and the second pipe orifice 32 face downward, the U-shaped structure improves the fluidity of the material inside the U-shaped aggregate pipe 3, and the material is more likely to fall out of the U-shaped aggregate pipe 3, which can avoid the situation of material jamming.

[0066] The U-shaped aggregate pipe 3 is elastically connected to the output shaft of the vibrator 2, so that the U-shaped aggregate pipe 3 can generate vibrations during both the feeding and discharging processes. During feeding, the vibrations generated by the U-shaped aggregate pipe 3 can, on the one hand, cause the powder inside the U-shaped aggregate pipe 3 to gather towards its bottom, preventing dust from flying and facilitating subsequent feeding into the bin; on the other hand, the U-shaped aggregate pipe 3 can drive the flexible hose 51 to vibrate, shake out the residual materials adhered to the flexible hose 51, and improve the feeding accuracy of the bin 5. During discharging, the vibrations generated by the U-shaped aggregate pipe 3 can shake out the materials inside it, avoid excessive adhesion of materials inside the U-shaped aggregate pipe 3 and reduce the material mixing ratio accuracy in the stirring mechanism 4, and improve the product quality.

[0067] The stirring mechanism 4 is arranged below the end of the conveyor belt 1. When the U-shaped aggregate pipe 3 moves below the conveyor belt 1, the U-shaped aggregate pipe 3 discharges materials. As Figure 3 and Figure 4 shown, Figure 3 The first discharging station is where the central axis of the U-shaped aggregate pipe 3 is parallel to the top surface of the conveyor belt 1 (the side facing the silo 5). Figure 4 The second discharging station is where the central axis of the U-shaped aggregate pipe 3 is perpendicular to the top surface of the conveyor belt 1. When the conveyor belt 1 rotates clockwise, the discharging section of the U-shaped aggregate pipe 3 is the section from the first discharging station to the second discharging station. After discharging, the conveyor belt 1 drives the U-shaped aggregate pipe 3 to reset.

[0068] See Figure 5 , the U-shaped aggregate pipe 3 includes an arc pipe 33 and a pair of straight pipes 34; the pair of straight pipes 34 are correspondingly communicated with the two pipe orifices of the arc pipe 33; the free end of the flexible pipe 51 can be inserted into the straight pipe 34. Compared with the embodiment where the U-shaped aggregate pipe 3 is an arc pipe 33, in this embodiment, the straight pipes 34 are added. On the one hand, the straight pipes 34 extend the vertical length of the U-shaped aggregate pipe 3, and dust is not easily raised; on the other hand, the materials of the flexible pipe 51 fall into the arc pipe 33 through the straight pipes 34. Under the working condition of feeding without starting the vibrator 2, it can effectively avoid the accumulation of materials at the orifice positions of the first pipe orifice 31 or the second pipe orifice 32 of the U-shaped aggregate pipe 3, saving processing costs.

[0069] Furthermore, a sealing plate 35 is hinged on the second pipe orifice 32; a counterweight 351 is arranged at the top end of the sealing plate 35; the free end of the flexible pipe 51 can be inserted into the first pipe orifice 31. In this embodiment, the first pipe orifice 31 is used as the docking feeding port of the flexible pipe 51, and the second pipe orifice 32 is blocked by the sealing plate 35. The flexible pipe 51 and the sealing plate 35 are used to block the U-shaped aggregate pipe 3, which can effectively reduce the dust raising situation during the feeding vibration of the U-shaped aggregate pipe 3 and improve the proportioning accuracy of the materials. The counterweight 351 can not only press the sealing plate 35 during the feeding process of the U-shaped aggregate pipe 3 to prevent dust raising, but also assist the sealing plate 35 to open during the discharging process of the U-shaped aggregate pipe 3, facilitating the discharging of the first pipe orifice 31 and the second pipe orifice 32.

[0070] Secondly, the hose 51 is a frustum-shaped hose; the small-diameter end of the hose 51 is connected to the silo 5; the large-diameter end of the hose 51 is inserted into the straight pipe 34; when the U-shaped aggregate pipe 3 vibrates along the axial direction of the output shaft, the outer wall of the hose 51 can abut against the inner wall of the straight pipe 34. Specifically, the discharge port of the silo 5 is connected to the small-diameter end of the frustum-shaped hose. The structure of the frustum-shaped hose itself enables the material to be less likely to adhere to the inner wall of the hose 51 when the silo 5 discharges, effectively avoiding the blockage of the material in the hose 51 and reducing the working hours of the subsequent vibrator 2. Optionally, the hose 51 is a transparent hose, which is convenient for the operator to observe whether the residual material in the hose 51 is basically vibrated out, so as to flexibly operate the vibrator 2. In addition, since the large-diameter end of the hose 51 is inserted into the straight pipe 34, and the inner diameter of the straight pipe 34 is fixed while the outer diameter of the large-diameter end of the hose 51 increases sequentially from top to bottom, when the U-shaped aggregate pipe 3 vibrates vertically, the inner wall of the U-shaped aggregate pipe 3 can press against the large-diameter end of the hose 51, thereby causing the hose 51 to vibrate and vibrating out the residual material in the hose 51. The docking and feeding method of the frustum-shaped hose and the straight pipe 3 can further block the first pipe orifice 31 and reduce dust and dust emissions.

[0071] As Figure 6 shown, the vibrator 2 includes a vibration machine 21, a T-shaped shaft 22, a spring 23 and a sleeve 24; the vibration machine 21 is installed on the conveyor belt 1; the small-diameter end of the T-shaped shaft 22 is connected to the vibration machine 21, and the other end is slidably connected to the inner wall of the sleeve 24; the top end of the sleeve 24 is connected to the U-shaped aggregate pipe 3; an annular plate 241 is coaxially arranged at the bottom end of the sleeve 24; the spring 23 is sleeved on the T-shaped shaft 22; the spring 23 is arranged between the T-shaped shaft 22 and the annular plate 241. Specifically, a chute is vertically formed in the sleeve 24, and the flange of the T-shaped shaft 22 is slidably connected to the chute. The annular plate 241 is used to prevent the spring 23 and the T-shaped shaft 22 from coming out of the sleeve 24, improving the reliability of the equipment. Of course, the spring 23 can also be arranged between the inner wall of the sleeve 24 and the top surface of the T-shaped shaft 22. When the vibrator 2 operates, its output shaft reciprocally extends and retracts vertically, and the spring then drives the sleeve 24 to reciprocally extend and retract vertically, realizing the vertical vibration of the U-shaped aggregate pipe 3, with a simple and practical structure.

[0072] In addition, a shock pad 25 is arranged at the bottom end of the vibrator 2; the shock pad 25 is connected to the conveyor belt 1. The shock pad 25 is a flexible part and can be a rubber pad, so as to enhance the adaptability of the vibrator 2 when moving at the end of the conveyor belt 1, avoid the conveyor belt mechanism from damaging the vibrator 2, and realize the flexible movement of the vibrator 2 at the end of the conveyor belt 1.

[0073] See Figure 7, in the first embodiment, the stirring mechanism 4 includes a material barrel 41, a stirrer 42, a first rotating shaft 43 and a second rotating shaft 44; the material barrel 41 is arranged below the end of the conveyor belt 1; the stirrer 42 is arranged on the outer wall of the material barrel 41; the first rotating shaft 43 and the second rotating shaft 44 are respectively rotatably connected to the right inner wall and the left inner wall of the material barrel 41; first gears 431 and second gears 441 are respectively arranged at the free ends of the first rotating shaft 43 and the second rotating shaft 44, and the first gears 431 and the second gears 441 are meshed and driven; blades 45 are arranged on both the first rotating shaft 43 and the second rotating shaft 44. Specifically, the discharge port size of the material barrel 41 is much larger than that of the U-shaped collecting pipe 3 to adapt to the movement of the U-shaped collecting pipe 3 between the first discharge station and the second discharge station, and to ensure that the materials can fully fall into the material barrel 41, so as to ensure the mixing ratio accuracy of each material. The first gears 431 and the second gears 441 are spur gears. After being meshed and driven, the stirrer 42 can synchronously drive the first rotating shaft 43 and the second rotating shaft 44 to rotate, and then the blades 45 stir the liquid mixture in the material barrel 41. The stirring method is energy-saving and efficient.

[0074] In the second embodiment, the stirring mechanism 4 further includes a third rotating shaft 46; one end of the third rotating shaft 46 is rotatably connected to the inner wall bottom surface of the material barrel 41, and the other end is provided with a driving helical gear 461; the first gears 431 and the second gears 441 are both helical gears; the first gears 431 and the second gears 441 are respectively meshed and driven with the driving helical gear 461. On the basis of the first embodiment, the third rotating shaft 46 and the driving helical gear 461 are added, and the synchronous rotation of the three rotating shafts is realized by the linkage of the three helical gears, further improving the stirring efficiency.

[0075] Secondly, the stirring mechanism 4 further includes a sealing box 47; the first rotating shaft 43, the second rotating shaft 44 and the third rotating shaft 46 are all rotatably connected to the sealing box 47; the first gears 431, the second gears 441 and the driving helical gear 461 are all arranged in the sealing box 47. The sealing box 47 is used to seal the internal gear set, to prevent materials from falling onto the gear set and affecting the transmission of the stirring mechanism 4, and improving the transmission stability of the stirring mechanism 4.

[0076] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. A high-precision dispensing device for powdery materials in multiple bins, characterized in that, The high-precision dispensing device includes a conveyor belt (1), a vibrator (2), a U-shaped aggregate pipe (3), a stirring mechanism (4), and a plurality of bins (5); The plurality of bins (5) are arranged in an array along the sliding direction of the conveyor belt (1); a weight sensor is provided on the bin (5); The vibrator (2) is provided on the conveyor belt (1); The U-shaped aggregate pipe (3) is elastically connected to the output shaft of the vibrator (2); A first pipe orifice (31) and a second pipe orifice (32) are formed at the top end of the U-shaped aggregate pipe (3); a flexible hose (51) is connected to the bottom end of the bin (5); the free end of the flexible hose (51) can be inserted into the first pipe orifice (31) or the second pipe orifice (32); The stirring mechanism (4) is arranged below the end of the conveyor belt (1), and a discharge port is provided at the top end of the stirring mechanism (4).

2. The high-precision dispensing device for multi-bin powdery materials according to claim 1, characterized in that, The U-shaped aggregate pipe (3) includes an arc-shaped pipe (33) and a pair of straight pipes (34); The pair of straight pipes (34) are correspondingly communicated with the two pipe orifices of the arc-shaped pipe (33); The free end of the flexible hose (51) can be inserted into the straight pipe (34).

3. The high-precision dispensing device for powdery materials in multiple bins according to claim 2, characterized in that, A sealing plate (35) is hinged to the second pipe orifice (32); a counterweight block (351) is provided at the top end of the sealing plate (35); The free end of the flexible hose (51) can be inserted into the first pipe orifice (31).

4. The high-precision dispensing device for powdery materials in multiple bins according to claim 3, characterized in that, The flexible hose (51) is a frustum-shaped flexible hose; The small-diameter end of the flexible hose (51) is communicated with the bin (5); the large-diameter end of the flexible hose (51) is inserted into the straight pipe (34); When the U-shaped aggregate pipe (3) vibrates along the axial direction of the output shaft, the outer wall of the flexible hose (51) can be in contact with the inner wall of the straight pipe (34).

5. The high-precision dispensing device for multi-bin powdery materials according to any one of claims 1-4, characterized in that, The vibrator (2) includes a vibration machine (21), a T-shaped shaft (22), a spring (23), and a sleeve (24); The vibration machine (21) is installed on the conveyor belt (1); The small-diameter end of the T-shaped shaft (22) is connected to the vibration machine (21), and the other end is slidably connected to the inner wall of the sleeve (24); The top end of the sleeve (24) is connected to the U-shaped aggregate pipe (3); a circular plate (241) is coaxially provided at the bottom end of the sleeve (24); The spring (23) is sleeved on the T-shaped shaft (22); the spring (23) is arranged between the T-shaped shaft (22) and the circular plate (241).

6. The high-precision dispensing device for multi-bin powdery materials according to any one of claims 1-4, characterized in that, A shock pad (25) is provided at the bottom end of the vibrator (2); The shock pad (25) is connected to the conveyor belt (1).

7. The high-precision dispensing device for multi-bin powdery materials according to any one of claims 1-4, characterized in that, The stirring mechanism (4) includes a bucket (41), a stirrer (42), a first rotating shaft (43), and a second rotating shaft (44); The bucket (41) is arranged below the end of the conveyor belt (1); The stirrer (42) is arranged on the outer wall of the bucket (41); The first rotating shaft (43) and the second rotating shaft (44) are respectively rotationally connected to the right inner wall and the left inner wall of the material barrel (41); free ends of the first rotating shaft (43) and the second rotating shaft (44) are respectively provided with a first gear (431) and a second gear (441), and the first gear (431) and the second gear (441) are in meshing transmission with each other; Blades (45) are arranged on both the first rotating shaft (43) and the second rotating shaft (44).

8. The high-precision dispensing device for multi-bin powdery materials according to claim 7, characterized in that, The stirring mechanism (4) further includes a third rotating shaft (46); One end of the third rotating shaft (46) is rotationally connected to the bottom surface of the inner wall of the material barrel (41), and a transmission bevel gear (461) is arranged at the other end; Both the first gear (431) and the second gear (441) are bevel gears; the first gear (431) and the second gear (441) are respectively in meshing transmission with the transmission bevel gear (461).

9. The high-precision dispensing device for powdery materials in multiple bins according to claim 8, wherein, The stirring mechanism (4) further includes a seal box (47); The first rotating shaft (43), the second rotating shaft (44) and the third rotating shaft (46) are all rotationally connected to the seal box (47); The first gear (431), the second gear (441) and the transmission bevel gear (461) are all arranged inside the seal box (47).

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