Food grading weighing mechanism

Abstract

The invention discloses a food grading and weighing mechanism, and relates to the technical field of grading and weighing mechanisms, the food grading and weighing mechanism comprises a supporting rack, a sorting mechanism is arranged on the inner side of the upper end of the supporting rack, and weighing mechanisms are arranged at the lower end of the sorting mechanism and the inner side face of the lower end of the supporting rack; and the sorting mechanism comprises a screening unit and an auxiliary striking unit. Through control starting of the driving motor, the rotating shaft rod can be driven to rotate, it is guaranteed that the two sets of sliding sleeve rods and the bevel edge plate continuously hit the rod hammer to rotate in a reciprocating mode, under the elastic effect of the telescopic spring, the sliding sleeve rods slide on the inner wall of the fixed sleeve, the bevel edge plate continuously hit the rod hammer to obtain outward and inward pulling force, and the rod hammer is driven to rotate. Therefore, the effect of continuous knocking with the slope vibration knocking plate is achieved, accelerated falling of dust adhering to the side wall of the inner cavity of the conical guide plate is guaranteed, the dust separation effect is improved, meanwhile, the sorting speed of garlic on the outer surface of the upper end of the conical guide plate is increased, the automation degree is high, and the grading efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of grading and weighing mechanisms, and particularly to a food grading and weighing mechanism. Background Art

[0002] In recent years, the vegetable production in China has shown a continuous upward trend. The demand for mechanized vegetable production, especially for post-harvest and post-production processing, is increasing. With the rapid development of the vegetable industry and the increasing shortage of rural labor, the existing vegetable production methods mainly relying on manual or semi-mechanized operations can no longer meet the growing vegetable production demand, and to a certain extent, limit the production and processing efficiency and economic benefits of vegetables. Currently, the weighing and screening process for garlic is all carried out manually, which is time-consuming and laborious, with extremely low efficiency, and often there are deviations. At present, there is an urgent need for a food grading and weighing mechanism to replace manual sorting and packaging of garlic. Generally, the packaging machines on the market are for weighing and packaging small particles such as corn kernels and tea leaves, and there is no weighing and sorting mechanism for large-shaped agricultural products such as whole garlic.

[0003] In the garlic grading and weighing mechanism with the publication number: CN110479633B. The existing weighing and screening process for garlic is all carried out manually, with extremely low efficiency. The present invention includes a feeding device and a grading and weighing device; the feeding device includes a feed hopper support frame, a feed hopper, a bottom plate and a feeding assembly; the feeding assembly includes a round tube, a cross-shaped support and a stepping motor I; the grading and weighing device includes a funnel and a weighing assembly; the weighing assembly includes a discharging hopper, a weighing sensor, a weighing sensor support frame, a stepping motor II and a support plate; the funnel is arranged directly below the feed hopper; a weighing assembly is arranged below each feeding assembly. The present invention realizes automatic weighing of garlic and sorts it into groups of a certain weight, saving labor in the garlic weighing and screening process and improving efficiency.

[0004] Regarding the existing technology, there are the following problems: 1. The existing grading and weighing mechanism does not have the effect of separating dust and tiny impurities in the material, and it is difficult to collect the separated impurities; 2. The traditional weighing mechanism does not have the effect of weighing the sorted garlic one by one and realizing automatic material separation. Summary of the Invention

[0005] The present invention provides a food grading and weighing mechanism to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: A food grading and weighing mechanism includes a support frame. Inside the upper end of the support frame, a sorting mechanism is arranged, and below the sorting mechanism and on the inner side of the lower end of the support frame, a weighing mechanism is arranged; The sorting mechanism includes a screening unit and an auxiliary hitting unit. The auxiliary hitting unit is arranged inside the screening unit and is movably connected to its inner surface; The weighing mechanism includes a blanking unit and a balanced weighing unit. The balanced weighing unit is arranged at the lower position of the blanking unit.

[0007] A further improvement of the technical solution of the present invention is that: a conical guide plate is arranged inside the sorting cylinder, and the lower end of the conical guide plate is fixedly connected to the upper surface of the seat plate. A vertical garlic separating partition plate is fixedly connected to the outer surface of the conical guide plate. A garlic dropping frame fixedly connected to the upper surface of the conical guide plate is arranged on the inner side surface of the vertical garlic separating partition plate. Dust discharge holes are evenly formed on the outer surface of the garlic dropping frame. The garlic dropping frames are arranged in seven equidistant arrays and are distributed inside the vertical garlic separating partition plate.

[0008] A further improvement of the technical solution of the present invention is that: the auxiliary hitting unit includes a driving rotation assembly and a continuous knocking assembly. The continuous knocking assembly is arranged at the output end of the driving rotation assembly. The driving rotation assembly includes a driving motor. The driving motor is fixedly installed on the lower outer surface of the seat plate. A rotating shaft rod is fixedly installed on the output shaft of the driving motor. The driving motor is controlled to start so that its output shaft rotates as the center of power transmission, and is used to drive the rotating shaft rod to rotate.

[0009] A further improvement of the technical solution of the present invention is that: the continuous knocking assembly includes a socket fixing block. The socket fixing block is fixedly installed on the outer surface of the rotating shaft rod. A fixed sleeve is fixedly installed on the outer surface of the socket fixing block. A telescopic spring is fixedly installed on the inner surface of the fixed sleeve. The fixed sleeve and the telescopic spring are symmetrically distributed with the central axis of the rotating shaft rod as the symmetry axis.

[0010] A further improvement of the technical solution of the present invention is that: the other end of the telescopic spring is fixedly connected to a sliding sleeve rod. The outer surface of the sliding sleeve rod is slidably connected to the inner wall of the fixed sleeve. A bevel plate continuous knocking hammer is fixedly installed at the end of the sliding sleeve rod away from the telescopic spring. The outer surface of the sliding sleeve rod is slidably adapted to the inner wall of the fixed sleeve.

[0011] A further improvement of the technical solution of the present invention is that: the continuous knocking assembly further includes an inclined surface vibration knocking plate and a blower dust collection bin. The inclined surface vibration knocking plate is fixedly installed on the inner cavity side wall of the conical guide plate. The upper end of the blower dust collection bin is fixedly connected to the lower surface of the seat plate. The blower dust collection bin and the lower end of the seat plate are detachably connected, which is convenient for cleaning the dust collected inside the blower dust collection bin.

[0012] A further improvement of the technical solution of the present invention lies in that: the blanking unit includes a garlic guiding circular tube, the upper end of the garlic guiding circular tube is connected through the inner wall of the lower end of the garlic dropping frame, and the lower end of the garlic guiding circular tube is fixedly and through-connected with an auxiliary blanking hollow square tube, and the auxiliary blanking hollow square tube is arranged as a square hollow cylinder.

[0013] A further improvement of the technical solution of the present invention lies in that: the balance weighing unit includes a fixed support vertical plate one, a fixed support vertical plate two and a reduction motor. The fixed support vertical plate one and the fixed support vertical plate two are respectively fixedly installed at the lower end of the support frame. The reduction motor is fixedly installed on the outer surface of one side of the fixed support vertical plate two, and a driving rotating gear is fixedly installed on the output shaft of the fixed support vertical plate two. The reduction motor is controlled to start, and its output shaft serves as the center of power transmission to drive the driving rotating gear to rotate.

[0014] A further improvement of the technical solution of the present invention lies in that: an arc-shaped meshing tooth is meshed and rotated on the outer surface of the upper end of the driving rotating gear, and a weighing balance hopper is fixedly installed on the inner side surface of the arc-shaped meshing tooth. The outer side surface of the weighing balance hopper is rotationally connected with the inner wall of the fixed support vertical plate one. An inductor is arranged on the inner side wall of the weighing balance hopper, and the arc-shaped meshing tooth is meshed and rotated with the outer surface of the driving rotating gear.

[0015] Due to the adoption of the above technical solution, the technical progress obtained by the present invention compared with the prior art is: 1. The present invention provides a food grading and weighing mechanism, which adopts the common cooperation between screening units to realize the automatic feeding of garlic. The conical design of the conical diversion plate is convenient for the grading and screening of garlic. By using the garlic dropping frame, multiple garlics can be received first for preliminary storage. And through the addition of dust discharge holes and dust guiding holes, the dust and tiny impurities in the garlic can be collected into the inner cavity of the conical diversion plate and finally collected into the internal of the fan dust collection bin uniformly.

[0016] 2. The present invention provides a food grading and weighing mechanism, which adopts the common cooperation between the driving rotation assembly and the continuous knocking assembly to accelerate the blanking and sorting of garlic and improve the separation speed of dust substances in garlic. By controlling the start of the driving motor, the rotating shaft rod can be driven to rotate, ensuring that the two sliding sleeve rods and the bevel plate continuous knocking hammer rotate reciprocally. Under the elastic action of the telescopic spring, the sliding sleeve rod slides on the inner wall of the fixed sleeve, and the bevel plate continuous knocking hammer obtains a pulling force from outside to inside, thus achieving the effect of continuous knocking with the inclined plane vibration knocking plate, ensuring that the dust adhered to the inner cavity side wall of the conical diversion plate accelerates to fall, improving the dust separation effect, and at the same time accelerating the sorting speed of the garlic on the outer surface of the upper end of the conical diversion plate, with high automation degree and high grading efficiency.

[0017] 3. The present invention provides a food grading and weighing mechanism, which realizes the uniform feeding of single garlic cloves through the cooperation of the feeding units. By setting multiple groups of feeding components, it avoids the problem of excessive garlic falling at one time, which may cause damage to the garlic, and improves the overall effectiveness and usage effect of the mechanism.

[0018] 4. The present invention provides a food grading and weighing mechanism, which realizes the automatic weighing of garlic through the cooperation of the balance weighing units. Through the setting of the weighing balance hopper, garlic of a certain weight is sorted. The sensor senses the weight of the garlic, the driving reduction motor receives the signal, and drives the active rotating gear to rotate, realizing the left and right tilting of the weighing balance hopper, ensuring that the garlic of the standard weight and the non-standard garlic are separated. It has a high degree of automation, saves labor in the process of garlic weighing and screening, and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic perspective structure diagram of the bottom view of the present invention; Figure 3 is a schematic perspective structure diagram of the sorting mechanism of the present invention; Figure 4 is a partial schematic perspective structure diagram of the screening unit of the present invention; Figure 5 is a schematic perspective sectional structure diagram of the sorting cylinder of the present invention; Figure 6 For the present invention Figure 5 is an enlarged structure diagram at position A; Figure 7 is a schematic perspective structure diagram of the weighing mechanism of the present invention: Figure 8 is a schematic perspective structure diagram of the balance weighing unit of the present invention.

[0020] In the figure: 1, support frame; 2, sorting mechanism; 3, weighing mechanism; 211, sorting cylinder; 2111, seat plate; 2112, dust guide hole; 212, conical diversion plate; 213, vertical garlic separating partition; 214, garlic dropping frame; 2141, dust discharging hole; 221, driving motor; 2211, rotating shaft rod; 222, continuous knocking assembly; 2221, socket fixing block; 2222, fixed sleeve; 2223, telescopic spring; 2224, sliding sleeve rod; 2225, hypotenuse plate continuous hitting hammer; 223, inclined plane vibration knocking plate; 224, fan dust collecting bin; 311, garlic guiding round tube; 312, auxiliary feeding hollow square tube; 321, fixed support vertical plate one; 322, fixed support vertical plate two; 323, reduction motor; 324, active rotating gear; 325, weighing balance hopper; 3251, arc meshing teeth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present invention will be further described in detail below in conjunction with embodiments: Embodiment 1

[0022] As Figures 1-8 shown, the present invention provides a food grading and weighing mechanism, including a support frame 1. Inside the upper end of the support frame 1, a sorting mechanism 2 is provided. At the lower end of the sorting mechanism 2 and the inner side surface of the lower end of the support frame 1, a weighing mechanism 3 is provided; the sorting mechanism 2 includes a screening unit and an auxiliary hitting unit. The auxiliary hitting unit is arranged inside the screening unit and is movably connected to its inner surface; the weighing mechanism 3 includes a blanking unit and a balance weighing unit. The balance weighing unit is arranged below the blanking unit. The screening unit includes a sorting cylinder 211 and a conical diversion plate 212. Dust guide holes 2112 are formed on the outer surface of the conical diversion plate 212. The lower end of the sorting cylinder 211 is fixedly connected to a material seating plate 2111. The outer surface of the material seating plate 2111 and the outer edge of the upper end of the sorting cylinder 211 are respectively fixedly connected to the inner surface of the support frame 1. Dust falling holes for auxiliary dust removal are formed on the inner surface of the material seating plate 2111. The conical design of the conical diversion plate 212 facilitates the grading and screening of garlic. By means of the arrangement of the garlic dropping frame 214, multiple garlic can be initially received and stored. Inside the sorting cylinder 211, a conical diversion plate 212 is provided, and the lower end of the conical diversion plate 212 is fixedly connected to the upper surface of the material seating plate 2111. A vertical garlic separating partition plate 213 is fixedly connected to the outer surface of the conical diversion plate 212. An inner side surface of the vertical garlic separating partition plate 213 is provided with a garlic dropping frame 214 fixedly connected to the upper surface of the conical diversion plate 212. Dust discharging holes 2141 are evenly formed on the outer surface of the garlic dropping frame 214. Through the addition of the dust discharging holes 2141 and the dust guide holes 2112, dust and tiny impurities in the garlic can be collected into the inner cavity of the conical diversion plate 212 and finally collected into the internal of the fan dust collection bin 224 uniformly. Embodiment 2

[0023] As Figures 1-8As shown, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, the auxiliary hitting unit includes a driving rotation assembly and a continuous knocking assembly 222. The continuous knocking assembly 222 is arranged at the output end of the driving rotation assembly. The driving rotation assembly includes a driving motor 221, and the driving motor 221 is fixedly installed on the lower outer surface of the seat plate 2111. A rotating shaft rod 2211 is fixedly installed on the output shaft of the driving motor 221. By controlling the driving motor 221 to start, the rotating shaft rod 2211 can be driven to rotate. The continuous knocking assembly 222 includes a socket fixing block 2221, and the socket fixing block 2221 is fixedly installed on the outer surface of the rotating shaft rod 2211. A fixed sleeve 2222 is fixedly installed on the outer surface of the socket fixing block 2221, and a telescopic spring 2223 is fixedly installed on the inner surface of the fixed sleeve 2222. By the driving rotation of the rotating shaft rod 2211, it is ensured that the two sliding sleeve rods 2224 and the bevel plate continuous hitting hammer 2225 rotate reciprocally. Under the elastic action of the telescopic spring 2223, the sliding sleeve rod 2224 slides on the inner wall of the fixed sleeve 2222, and the bevel plate continuous hitting hammer 2225 receives an outward and inward pulling force, thereby achieving the effect of continuously knocking on the inclined surface vibration knocking plate 223. The other end of the telescopic spring 2223 is fixedly connected to the sliding sleeve rod 2224, and the outer surface of the sliding sleeve rod 2224 is slidably connected to the inner wall of the fixed sleeve 2222. The end of the sliding sleeve rod 2224 away from the telescopic spring 2223 is fixedly installed with a bevel plate continuous hitting hammer 2225. Under the elastic action of the telescopic spring 2223, the bevel plate continuous hitting hammer 2225 contacts the inclined surface vibration knocking plate 223 to achieve reciprocating knocking. The continuous knocking assembly 222 further includes an inclined surface vibration knocking plate 223 and a blower dust collection bin 224. The inclined surface vibration knocking plate 223 is respectively fixedly installed on the inner cavity side wall of the conical guide plate 212. The upper end of the blower dust collection bin 224 is fixedly connected to the lower surface of the seat plate 2111, which realizes the accelerated falling of the dust adhered to the inner cavity side wall of the conical guide plate 212, improves the dust separation effect, and at the same time accelerates the sorting speed of the garlic on the outer surface of the upper end of the conical guide plate 212, with high automation and high grading efficiency. Embodiment 3

[0024] As Figures 1-8As shown, on the basis of Embodiments 1-2, the present invention provides a technical solution: Preferably, the blanking unit includes a garlic guiding circular tube 311, the upper end of the garlic guiding circular tube 311 is connected through the inner wall of the lower end of the garlic dropping frame 214, and the lower end of the garlic guiding circular tube 311 is fixedly and through-connected with an auxiliary blanking hollow square tube 312. The upper end of the garlic guiding circular tube 311 is connected through the lower end of the garlic dropping frame 214. The weighing balance unit includes a fixed support vertical plate one 321, a fixed support vertical plate two 322 and a reduction motor 323. The fixed support vertical plate one 321 and the fixed support vertical plate two 322 are respectively fixedly installed at the lower end of the support frame 1. The reduction motor 323 is fixedly installed on the outer surface of one side of the fixed support vertical plate two 322, and a driving rotating gear 324 is fixedly installed on the output shaft of the fixed support vertical plate two 322. An arc-shaped meshing tooth 3251 is rotatably engaged with the outer surface of the upper end of the driving rotating gear 324, and a weighing balance hopper 325 is fixedly installed on the inner side surface of the arc-shaped meshing tooth 3251. The outer side surface of the weighing balance hopper 325 is rotatably connected with the inner wall of the fixed support vertical plate one 321. An inductor is arranged on the inner side wall of the weighing balance hopper 325. Through the setting of the weighing balance hopper 325, garlic of a certain weight is sorted. The inductor senses the weight of the garlic, the driving reduction motor 323 receives the signal, and the driving rotating gear 324 is driven to rotate, so as to realize the left and right inclination of the weighing balance hopper 325, ensuring that the garlic of the standard weight and the non-standard garlic are separated. The automation degree is high, the labor force in the garlic weighing and screening process is saved, and the efficiency is improved.

[0025] Next, the working principle of the food grading and weighing mechanism will be specifically described.

[0026] As Figures 1-8As shown, during operation, first, the staff pour the garlic into the interior of the sorting cylinder 211. Then, the garlic enters between the adjacent vertical garlic-dividing partitions 213 along the upper end of the conical deflector 212, and then enters the interior of the garlic-drop frame 214 respectively. Then, the garlic enters through the garlic-guiding round tube 311. The diameter of the garlic-guiding round tube 311 is set to accommodate only one garlic, so that the garlic is arranged in a straight line on the inner wall of the garlic-guiding round tube 311, and then falls above the weighing balance hopper 325 through the auxiliary blanking hollow square tube 312. The sensor senses the weight of the garlic, the drive reduction motor 323 receives the signal and drives the active rotating gear 324 to rotate, realizing the left and right inclination of the weighing balance hopper 325, and using the dumping direction of the weighing balance hopper 325 to judge the weight of the garlic, ensuring that the garlic with the standard weight and the non-standard garlic are separated. In addition, during the sorting process, by controlling the start of the drive motor 221, the rotating shaft rod 2211 can be driven to rotate, ensuring that the two groups of sliding sleeve rods 2224 and the hypotenuse plate continuously strike the hammer 2225 to rotate reciprocally. Under the elastic action of the telescopic spring 2223, the sliding sleeve rod 2224 slides on the inner wall of the fixed sleeve 2222, and the hypotenuse plate continuously strikes the hammer 2225 to obtain an outward and inward pulling force, thereby achieving the effect of continuously knocking on the inclined surface vibration knocking plate 223, ensuring that the dust adhering to the inner cavity side wall of the conical deflector 212 accelerates to fall, improving the dust separation effect, and at the same time accelerating the sorting speed of the garlic on the outer surface of the upper end of the conical deflector 212, with a high degree of automation. Finally, the collected dust is centrally collected in the interior of the fan dust collection bin 224, ensuring the overall quality of the garlic sorting.

[0027] The above text generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A food grading and weighing mechanism, comprising a supporting frame (1), characterized in that: A sorting mechanism (2) is arranged on the inner side of the upper end of the support frame (1), and a weighing mechanism (3) is arranged on the lower end of the sorting mechanism (2) and the inner side of the lower end of the support frame (1); The sorting mechanism (2) comprises a screening unit and an auxiliary striking unit, wherein the auxiliary striking unit is arranged inside the screening unit and movably connected to the inner surface thereof; The weighing mechanism (3) comprises a blanking unit and a balancing weighing unit, and the balancing weighing unit is arranged below the blanking unit.

2. A food grading and weighing mechanism according to claim 1, characterized in that: The screening unit comprises a sorting cylinder (211) and a conical guide plate (212); the outer surface of the conical guide plate (212) is provided with a dust guide hole (2112); the lower end of the sorting cylinder (211) is fixedly connected to a material seat plate (2111); the outer surface of the material seat plate (2111) and the outer edge of the upper end of the sorting cylinder (211) are respectively fixedly connected to the inner surface of a supporting frame (1); and the inner surface of the material seat plate (2111) is provided with a dust drop hole for assisting dust discharge.

3. A food grading and weighing mechanism according to claim 2, characterized in that: A conical guide plate (212) is arranged inside the sorting cylinder (211), and the lower end of the conical guide plate (212) is fixedly connected to the upper surface of the material seat plate (2111), a vertical garlic separation partition (213) is fixedly connected to the outer surface of the conical guide plate (212), and a garlic dropping frame (214) fixedly connected to the upper surface of the conical guide plate (212) is arranged on the inner side surface of the vertical garlic separation partition (213), and dust discharge holes (2141) are evenly arranged on the outer surface of the garlic dropping frame (214).

4. A food grading and weighing mechanism according to claim 3, characterized in that: The auxiliary striking unit comprises a driving rotating component and a continuous striking component (222), wherein the continuous striking component (222) is arranged at the output end of the driving rotating component, and the driving rotating component comprises a driving motor (221), wherein the driving motor (221) is fixedly mounted on the outer surface of the lower end of the seat plate (2111), and a rotating shaft (2211) is fixedly mounted on the output shaft of the driving motor (221).

5. A food grading and weighing mechanism according to claim 4, characterized in that: The continuous striking assembly (222) comprises a sleeve fixing block (2221), the sleeve fixing block (2221) being fixedly mounted on the outer surface of the rotating shaft (2211), a fixing sleeve (2222) being fixedly mounted on the outer surface of the sleeve fixing block (2221), and a telescopic spring (2223) being fixedly mounted on the inner surface of the fixing sleeve (2222).

6. A food grading and weighing mechanism according to claim 5, characterized in that: The other end of the telescopic spring (2223) is fixedly connected to a sliding sleeve rod (2224), and the outer surface of the sliding sleeve rod (2224) is slidably connected to the inner wall of the fixed sleeve (2222), and one end of the sliding sleeve rod (2224) away from the telescopic spring (2223) is fixedly mounted with a bevel plate for continuously striking a hammer (2225).

7. A food grading and weighing mechanism according to claim 4, characterized in that: The continuous knocking assembly (222) further comprises an inclined vibrating knocking plate (223) and a fan ash collecting bin (224); the inclined vibrating knocking plate (223) is respectively fixedly mounted on the inner cavity side wall of the conical guide plate (212); and the upper end of the fan ash collecting bin (224) is fixedly connected to the lower surface of the seat plate (2111).

8. A food grading and weighing mechanism according to claim 1, characterized in that: The material dropping unit comprises a garlic-leading circular tube (311), the upper end of the garlic-leading circular tube (311) being connected through the inner wall of the lower end of the garlic dropping frame (214), and the lower end of the garlic-leading circular tube (311) being fixedly connected through an auxiliary material dropping hollow square tube (312).

9. A food grading and weighing mechanism according to claim 1, characterized in that: The balancing weighing unit comprises a fixed support vertical plate 1 (321), a fixed support vertical plate 2 (322) and a reduction motor (323); the fixed support vertical plate 1 (321) and the fixed support vertical plate 2 (322) are respectively fixedly mounted on the lower end of the support frame (1); the reduction motor (323) is fixedly mounted on the outer surface of one side of the fixed support vertical plate 2 (322); and a driving rotating gear (324) is fixedly mounted on the output shaft of the fixed support vertical plate 2 (322).

10. A food grading and weighing mechanism according to claim 9, characterized in that: The upper outer surface of the active rotating gear (324) is meshed and rotatably provided with arc-shaped meshing teeth (3251), and a weighing balancing bucket (325) is fixedly mounted on the inner side surface of the arc-shaped meshing teeth (3251), the outer side surface of the weighing balancing bucket (325) is rotatably connected to the inner wall of the fixed supporting vertical plate (321), and a sensor is arranged on the inner side wall of the weighing balancing bucket (325).

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