CN221190724U - Micro weight conveying system - Google Patents

Abstract

The utility model belongs to the technical field of silicone production and discloses a micro-weight conveying system, which comprises a base, wherein a through hole is formed in the upper surface of the base, a clamping mechanism capable of moving silicone raw materials is rotatably connected in the through hole, a groove is formed in the upper surface of the base, a weighing sensor is arranged in the groove, the weighing sensor is positioned at the right lower end of the clamping mechanism, a protection mechanism for shielding the weighing sensor is arranged on the upper surface of the base, a cleaning mechanism is arranged on one side, close to the weighing sensor, of the protection mechanism, the raw material storage tank is clamped by controlling the clamping mechanism, and raw materials accumulated in the raw material storage tank are poured into production equipment, so that the labor amount consumed by workers when raw materials are added into the production equipment is reduced; the exposed parts of the weighing sensor are shielded by the protection mechanism, so that the weighing sensor is prevented from being damaged in the idle process as much as possible.

Description

Micro weight conveying system

Technical Field

The utility model relates to the technical field of silicone production, in particular to a micro-weight conveying system.

Background

Silicone is commonly called silicone oil or dimethyl silicone oil, is a polymer of organic silicon oxide, is a series of polydimethyl siloxane with different molecular weights, the viscosity of the polydimethyl siloxane increases with the increase of the molecular weight, and the silicone is stable in chemical property, strong in hydrophobicity, insoluble in water, soluble in nonpolar solvents such as gasoline, toluene and the like.

The utility model discloses a raw material conveying device for chemical production, which relates to the technical field of chemical transportation equipment and comprises a bottom plate, wherein a sliding rod, a lifting plate, a screw rod and a first bevel gear are arranged in the bottom plate, the bottom plate is internally provided with a rotating rod and a second bevel gear through a support plate, the second bevel gear is meshed with the first bevel gear, the top of the bottom plate is provided with a shell through a mounting plate, a bidirectional screw rod and a sliding rail are arranged in the shell, and an arc-shaped clamping plate is arranged on the sliding rail through a sliding block.

In the course of implementing the present application, this technique has been found to have the following problems: most of the existing production equipment in the production process adds raw materials into the production equipment manually by workers or through conveying equipment, but the quality and the volume of the silicone production raw materials in the silicone production process are smaller, so that the traditional conveying equipment does not need to achieve two functions of conveying and proportioning in the conveying process, and the practicability of the equipment is reduced.

For this purpose, a micro-weight transport system is proposed.

Disclosure of utility model

The utility model aims at: the utility model provides a micro-weight conveying system, which aims to solve the problems that the quality and the volume of silicone production raw materials are smaller in the silicone production process, so that the traditional conveying equipment does not need to achieve two functions of conveying and proportioning in the conveying process.

The utility model adopts the following technical scheme for realizing the purposes:

The micro weight conveying system comprises a base, the through hole is formed in the upper surface of the base, a clamping mechanism capable of moving a silicone raw material is connected to the inner portion of the through hole in a rotating mode, a groove is formed in the upper surface of the base, a weighing sensor is mounted in the groove, the position of the weighing sensor is located at the right lower end of the clamping mechanism, a protection mechanism for shielding the weighing sensor is arranged on the upper surface of the base, and a cleaning mechanism is mounted on one side, close to the weighing sensor, of the protection mechanism.

Further, fixture includes motor one and support column, the support column rotates to be connected inside the through-hole of base, motor one is installed the upper surface of support column, the draw-in groove has been seted up in the front of support column, motor one's output is worn to establish the top of support column is installed the screw rod, the outside threaded connection of screw rod has the connecting block, connecting block sliding connection is in inside the draw-in groove of support column, U type fixed plate is installed in the front of connecting block, U type fixed plate is kept away from protection machanism one side inner wall articulates has U type connecting plate, U type connecting plate is close to one side inner wall of U type fixed plate has seted up two sets of draw-in grooves, two sets of electric telescopic handle is all installed to the draw-in groove inside of U type connecting plate, two sets of electric telescopic handle's output all installs the slider, two sets of the positive of slider are all installed the arc limiting plate, U type fixed plate is close to one side of protection machanism installs motor two, motor two's output is installed U type one side of being close to protection machanism.

Further, screw holes are formed in one opposite sides of the two groups of sliding blocks, screws are connected to the internal threads of the two groups of sliding blocks, and the external threads of the screws penetrate through the two groups of sliding blocks to be connected to the inner parts of the two groups of arc limiting plates.

Further, protection machanism includes two sets of fixed blocks, two sets of the draw-in groove has all been seted up to one side that the fixed block is adjacent, two sets of the inside sliding connection of draw-in groove of fixed block has the protection apron, the last surface mounting of protection apron has the gag lever post, the position of gag lever post is located two sets of the fixed block with between the weighing sensor, the upper surface of protection apron is seted up flutedly, the inside rotation of recess is connected with the rotary rod, the position of rotary rod is located two sets of the fixed block is kept away from one side of gag lever post.

Further, the cleaning mechanism comprises a fixing rod, a cleaning scraping plate is mounted on the lower surface of the fixing rod, a connecting rod is mounted on one side, away from the protective cover plate, of the fixing rod, a groove is formed in the lower surface of the connecting rod, a cleaning sponge is connected inside the groove of the connecting rod in a sliding mode, the cleaning sponge and the lower surface of the cleaning scraping plate are all abutted to the upper surface of the base, and the height of the upper surface of the weighing sensor and the height of the upper surface of the base are kept balanced.

Further, the outer surface of the weighing sensor is adhered with a sealing ring, and the outer surface of the sealing ring is abutted against the inner wall of the base groove.

The beneficial effects of the utility model are as follows:

1. According to the utility model, the first starting motor drives the connecting block to move in the clamping groove of the support column, so that the connecting block drives the raw material storage tanks between the two groups of arc-shaped limiting plates to synchronously move in the moving process, and drives the support column to drive the raw material storage tanks on the front surface of the support column to rotate at the upper end of the base, so that the position of the raw material storage tanks is rotated to the position right above the feed inlet of the production equipment, and then the second starting motor drives the U-shaped connecting plate to rotate, so that the U-shaped connecting plate drives the raw material storage tanks between the two groups of arc-shaped limiting plates to synchronously rotate in the rotating process, and the raw material is poured into the production equipment, so that the labor amount consumed when the raw material is added into the production equipment by workers is reduced, and the practicability of the device is improved.

2. According to the utility model, the motor is started to drive the connecting block and the raw material storage tank to synchronously move, the lower surface of the raw material storage tank is abutted to the upper surface of the weighing sensor, and the weighing sensor is started to record real-time data of the mass of the raw material added into the raw material storage tank, so that errors of the proportion of the raw material in the production equipment when a worker controls the raw material storage tank to add the raw material into the production equipment are avoided as much as possible, and the accuracy of the device in conveying the raw material is improved.

Drawings

FIG. 1 is a schematic diagram of the front structure of the present utility model;

FIG. 2 is a schematic top plan view of the present utility model;

FIG. 3 is a schematic elevational view of the cleaning mechanism of the present utility model;

fig. 4 is a schematic side view of the U-shaped fixing plate of the present utility model.

Reference numerals: 1. a base; 2. a weighing sensor; 3. a clamping mechanism; 301. a first motor; 302. a screw; 303. a support column; 304. a U-shaped fixing plate; 305. a second motor; 306. a connecting block; 307. a U-shaped connecting plate; 308. an electric telescopic rod; 309. a slide block; 310. an arc limiting plate; 311. a screw; 4. a protective mechanism; 401. a protective cover plate; 402. a limit rod; 403. a rotating rod; 404. a fixed block; 5. a cleaning mechanism; 501. a fixed rod; 502. a cleaning blade; 503. a connecting rod; 504. cleaning a sponge; 6. and (3) sealing rings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1 to 4, the micro-weight conveying system comprises a base 1, wherein a through hole is formed in the upper surface of the base 1, a clamping mechanism 3 capable of moving silicone raw materials is rotatably connected in the through hole, a groove is formed in the upper surface of the base 1, a weighing sensor 2 is arranged in the groove, the position of the weighing sensor 2 is located at the right lower end of the clamping mechanism 3, a protection mechanism 4 for shielding the weighing sensor 2 is arranged on the upper surface of the base 1, and a cleaning mechanism 5 is arranged on one side, close to the weighing sensor 2, of the protection mechanism 4; specifically, the raw material storage tank is clamped by controlling the clamping mechanism 3, and raw materials accumulated in the raw material storage tank are poured into the production equipment, so that the labor consumption of workers when raw materials are added into the production equipment is reduced.

Meanwhile, the exposed part of the weighing sensor 2 is shielded through the protection mechanism 4, so that the weighing sensor 2 is prevented from being damaged in the idle process as much as possible.

As shown in fig. 1, fig. 2 and fig. 4, the clamping mechanism 3 comprises a first motor 301 and a supporting column 303, the supporting column 303 is rotationally connected in a through hole of the base 1, the first motor 301 is installed on the upper surface of the supporting column 303, clamping grooves are formed in the front of the supporting column 303, a screw rod 302 is installed at the output end of the first motor 301 penetrating through the top end of the supporting column 303, a connecting block 306 is connected to the external threads of the screw rod 302, the connecting block 306 is slidingly connected in the clamping grooves of the supporting column 303, a U-shaped fixing plate 304 is installed at the front of the connecting block 306, a U-shaped connecting plate 307 is hinged to the inner wall of one side, far away from the protection mechanism 4, of the U-shaped fixing plate 304, two groups of clamping grooves are formed in the inner wall of the side, close to the U-shaped connecting plate 307, of the clamping grooves of the two groups of the U-shaped connecting plate 307 are provided with electric telescopic rods 308, sliding blocks 309 are installed at the output ends of the two groups of the electric telescopic rods 308, arc-shaped limiting plates 310 are installed in the inner grooves of the two groups of sliding blocks 309, one side, close to the protection mechanism 4, of the two sides of the U-shaped fixing plate 304 are installed at the front sides of the two groups of the electric motor 305, and the two adjacent arc limiting plates are attached to one side, respectively;

Specifically, when the raw material storage tank is placed between two sets of arc limiting plates 310, two sets of sliding blocks 309 are pushed by starting two sets of electric telescopic rods 308 to drive two sets of arc limiting plates 310 to move, the raw material storage tank is clamped between two sets of arc limiting plates 310, the first starting motor 301 drives the connecting block 306 to move inside the clamping groove of the supporting column 303, the connecting block 306 drives the raw material storage tank between two sets of arc limiting plates 310 to synchronously move in the moving process, the supporting column 303 is pushed to drive the supporting column 303 to drive the front raw material storage tank to rotate at the upper end of the base 1, the position of the raw material storage tank is rotated to the right upper end of a feed inlet of production equipment, the second starting motor 305 drives the U-shaped connecting plate 307 to rotate, the U-shaped connecting plate 307 drives the raw material storage tank between the two sets of arc limiting plates 310 to synchronously rotate in the rotating process, and the raw material is poured into the production equipment, so that the labor amount consumed when the raw material is added into the production equipment by workers is reduced, and the practicability of the device is improved.

Meanwhile, before the staff adds the raw materials to the inside of the raw material storage tank, the connecting block 306 and the raw material storage tank are driven to synchronously move through the first starting motor 301, the lower surface of the raw material storage tank is abutted to the upper surface of the weighing sensor 2, and the weighing sensor 2 is started, so that the weighing sensor 2 records real-time data of the quality of the raw materials added to the inside of the raw material storage tank, and errors in the proportion of the raw materials in the production equipment when the staff controls the raw material storage tank to add the raw materials to the inside of the production equipment are avoided as much as possible, and the accuracy of the device in conveying the raw materials is improved.

In addition, can add through the interval between two sets of arc limiting plates 310 for two sets of arc limiting plates 310 can the different external diameters of raw materials storage jar of centre gripping in the in-process of use, and then make the staff can with the raw materials storage jar joint of different external diameters to between two sets of arc limiting plates 310, thereby enlarged the application scope of device.

As shown in fig. 4, threaded holes are formed on opposite sides of the two groups of sliding blocks 309, screws 311 are connected to internal threads of the two groups of sliding blocks 309, and external threads of the two groups of screws 311 penetrate through the two groups of sliding blocks 309 to be connected to the interiors of the two groups of arc-shaped limiting plates 310; specifically, after the two sets of arc limiting plates 310 are mounted inside the grooves of the two sets of sliding blocks 309, the two sets of screws 311 are turned to connect the external threads of the two sets of screws 311 to the two sets of arc limiting plates 310 through the two sets of sliding blocks 309, so that the two sets of screws 311 limit the moving positions of the two sets of arc limiting plates 310 inside the grooves of the two sets of sliding blocks 309, and the two sets of arc limiting plates 310 are prevented from moving in the using process as much as possible.

As shown in fig. 1 and 2, the protection mechanism 4 comprises two groups of fixing blocks 404, clamping grooves are formed in one side, adjacent to the two groups of fixing blocks 404, of the two groups of fixing blocks 404 is internally connected with a protection cover plate 401 in a sliding manner, a limiting rod 402 is mounted on the upper surface of the protection cover plate 401, the position of the limiting rod 402 is located between the two groups of fixing blocks 404 and the weighing sensor 2, a groove is formed in the upper surface of the protection cover plate 401, a rotating rod 403 is connected in the groove in a rotating manner, and the position of the rotating rod 403 is located on one side, far away from the limiting rod 402, of the two groups of fixing blocks 404; specifically, when the device is idle, the limiting rod 402 is pushed to drive the protective cover plate 401 to move inside the two groups of fixing blocks 404, the position of the protective cover plate 401 is moved to the right upper end of the weighing sensor 2, and the exposed parts of the protective cover plate 401, which are exposed outside, are shielded, so that the weighing sensor 2 is prevented from being damaged in the idle process as much as possible.

Meanwhile, the positions of the limiting rod 402 and the rotating rod 403 are arranged at the upper end of the protective cover plate 401, so that the positions of the limiting rod 402 and the rotating rod 403 are arranged at the right upper ends of the clamping grooves of the two groups of fixed blocks 404, and the limiting rod 402 and the rotating rod 403 limit the moving range of the protective cover plate 401 in the clamping grooves of the two groups of fixed blocks 404, and therefore the protective cover plate 401 is prevented from sliding down from the clamping grooves of the two groups of fixed blocks 404 in the process of carrying and moving the device as much as possible by staff; through rotating rotary rod 403, rotate rotary rod 403's position to between two sets of fixed blocks 404, rethread promotes gag lever post 402 and drives protective cover 401 and shift out inside the draw-in groove of two sets of fixed blocks 404 for protective cover 401 can follow the inside dismantlement of draw-in groove of two sets of fixed blocks 404, thereby the staff of being convenient for changes protective cover 401.

As shown in fig. 1 to 3, the cleaning mechanism 5 comprises a fixed rod 501, a cleaning scraper 502 is mounted on the lower surface of the fixed rod 501, a connecting rod 503 is mounted on one side of the fixed rod 501 far away from the protective cover plate 401, a groove is formed in the lower surface of the connecting rod 503, a cleaning sponge 504 is slidingly connected in the groove of the connecting rod 503, the cleaning sponge 504 and the lower surface of the cleaning scraper 502 are abutted against the upper surface of the base 1, and the height of the upper surface of the weighing sensor 2 and the height of the upper surface of the base 1 are balanced; specifically, when the protective cover plate 401 shields the weighing sensor 2 inside the groove of the base 1, the protective cover plate 401 drives the cleaning scraping plate 502 and the cleaning sponge 504 to move at the upper end of the base 1, and the lower surfaces of the cleaning scraping plate 502 and the cleaning sponge 504 are attached to the upper surfaces of the base 1 and the weighing sensor 2, so that liquid and particles accumulated on the upper surfaces of the weighing sensor 2 of the cleaning scraping plate 502 and the cleaning sponge 504 in the moving process are cleaned, and the influence of the liquid and the particles at the upper end of the weighing sensor 2 on the weighing of the clamping raw materials inside the clamping mechanism 3 is avoided as much as possible.

Meanwhile, the cleaning sponge 504 is driven to move in the clamping groove of the connecting rod 503 by pushing the cleaning sponge 504, so that the cleaning sponge 504 can be disassembled, and a worker can clean or replace the cleaning sponge 504 at regular intervals; the cleaning sponge 504 is arranged at the front end of the moving position of the cleaning scraping plate 502, so that the cleaning sequence of the device is that liquid is cleaned firstly and then particles are cleaned, and further the liquid accumulated on the upper surface of the weighing sensor 2 is prevented from flowing to the cleaning range of the cleaning mechanism 5 when the cleaning mechanism 5 cleans the liquid accumulated on the upper surface of the weighing sensor 2, and the cleaning efficiency of the device is improved.

As shown in fig. 2, a sealing ring 6 is adhered to the outer surface of the weighing sensor 2, and the outer surface of the sealing ring 6 is abutted against the inner wall of the groove of the base 1; specifically, the sealing ring 6 is used for sealing the connection part of the weighing sensor 2 and the groove of the base 1, so that liquid and particles are not easy to enter the connection part of the weighing sensor 2 and the groove of the base 1 when the cleaning mechanism 5 cleans the upper surface of the weighing sensor 2 to accumulate liquid or sundries, and the situation that later-stage staff cannot detach and move the weighing sensor 2 due to blockage of the connection part of the weighing sensor 2 and the groove of the base 1 is avoided as much as possible.

To sum up: the two groups of sliding blocks 309 are pushed by the two groups of electric telescopic rods 308 to drive the two groups of arc limiting plates 310 to move, the raw material storage tank is clamped between the two groups of arc limiting plates 310, the first starting motor 301 drives the connecting block 306 to move inside the clamping groove of the supporting column 303, the connecting block 306 drives the raw material storage tank between the two groups of arc limiting plates 310 to synchronously move in the moving process, the supporting column 303 is pushed to drive the front raw material storage tank of the supporting column 303 to rotate at the upper end of the base 1, the position of the raw material storage tank is rotated to the right upper end of a feed inlet of a production device, the second starting motor 305 drives the U-shaped connecting plate 307 to rotate, the U-shaped connecting plate 307 drives the raw material storage tank between the two groups of arc limiting plates 310 to synchronously rotate in the rotating process, and raw materials are poured into the production device, so that the labor amount consumed by workers when raw materials are added into the production device is reduced.

Meanwhile, the first motor 301 is started to drive the connecting block 306 and the raw material storage tank to synchronously move, the lower surface of the raw material storage tank is abutted to the upper surface of the weighing sensor 2, and then the weighing sensor 2 is started to record real-time data of the mass of the raw material added into the raw material storage tank, so that errors of the proportion of raw materials in the production equipment when a worker controls the raw material storage tank to add the raw materials into the production equipment are avoided as much as possible; the protective cover plate 401 is driven to move inside the two groups of fixing blocks 404 by pushing the limiting rod 402, the position of the protective cover plate 401 is moved to the right upper end of the weighing sensor 2, and the exposed part of the weighing sensor 2 of the protective cover plate 401 is shielded, so that the weighing sensor 2 is prevented from being damaged in the idle process as much as possible.

In addition, the cleaning scraping plate 502 and the cleaning sponge 504 are driven to move at the upper end of the base 1 through the protective cover plate 401, and the lower surfaces of the cleaning scraping plate 502 and the cleaning sponge 504 are attached to the upper surfaces of the base 1 and the weighing sensor 2, so that liquid and particles accumulated on the upper surface of the weighing sensor 2 are cleaned in the moving process of the cleaning scraping plate 502 and the cleaning sponge 504, and the effect of the liquid and the particles at the upper end of the weighing sensor 2 on weighing the raw materials clamped in the clamping mechanism 3 is avoided as much as possible.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The micro weight conveying system comprises a base (1), and is characterized in that: the utility model discloses a cleaning device for the electronic equipment, including base (1), fixture (3) that can remove is offered to the upper surface of base (1), the inside rotation of through-hole is connected with the fixture (3) that can the silicone raw materials, the upper surface of base (1) is offered flutedly, the internally mounted of recess has weighing sensor (2), the position of weighing sensor (2) is located the right lower extreme of fixture (3) clamping end, the upper surface of base (1) is provided with and shelters from weighing sensor (2) protection machanism (4), protection machanism (4) are close to one side of weighing sensor (2) is installed clean mechanism (5).

2. The micro weight delivery system of claim 1, wherein: the clamping mechanism (3) comprises a first motor (301) and a supporting column (303), the supporting column (303) is rotationally connected inside a through hole of the base (1), the first motor (301) is installed on the upper surface of the supporting column (303), clamping grooves are formed in the front surface of the supporting column (303), an output end of the first motor (301) penetrates through the top end of the supporting column (303) and is provided with a screw rod (302), the external thread of the screw rod (302) is connected with a connecting block (306), the connecting block (306) is slidably connected inside the clamping grooves of the supporting column (303), a U-shaped fixing plate (304) is installed on the front surface of the connecting block (306), the U-shaped fixing plate (304) is far away from one side inner wall of the protection mechanism (4) and is hinged with a U-shaped connecting plate (307), two groups of clamping grooves are formed in the inner wall of one side of the U-shaped fixing plate (304), electric telescopic rods (308) are installed inside the clamping grooves of the two groups of the U-shaped connecting plate (307), two groups of electric rods (309) are installed inside the clamping grooves of the two groups of electric rods (309), two groups of electric rods (309) are installed inside the two groups of sliding blocks (309) and two groups of sliding blocks (309) are provided with two groups of inner sliding blocks (309), and a motor II (305) is arranged on one side of the U-shaped fixing plate (304) close to the protection mechanism (4), and the output end of the motor II (305) is arranged on one side of the U-shaped connecting plate (307) close to the protection mechanism (4).

3. The micro weight transportation system according to claim 2, wherein: screw holes are formed in opposite sides of the two groups of sliding blocks (309), screws (311) are connected to internal threads of the two groups of sliding blocks (309), and external threads of the two groups of screws (311) penetrate through the two groups of sliding blocks (309) to be connected to the inner parts of the two groups of arc limiting plates (310).

4. The micro weight delivery system of claim 1, wherein: protection machanism (4) are including two sets of fixed blocks (404), two sets of draw-in groove has all been seted up to one side that fixed block (404) are adjacent, two sets of the inside sliding connection of draw-in groove of fixed block (404) has protective cover (401), the last surface mounting of protective cover (401) has gag lever post (402), the position of gag lever post (402) is located two sets of fixed block (404) with between weighing sensor (2), the upper surface of protective cover (401) is seted up flutedly, the inside rotation of recess is connected with rotary rod (403), the position of rotary rod (403) is located two sets of fixed block (404) are kept away from one side of gag lever post (402).

5. The micro weight delivery system of claim 4, wherein: the cleaning mechanism (5) comprises a fixing rod (501), a cleaning scraping plate (502) is mounted on the lower surface of the fixing rod (501), a connecting rod (503) is mounted on one side, away from the protective cover plate (401), of the fixing rod (501), a groove is formed in the lower surface of the connecting rod (503), a cleaning sponge (504) is connected inside the groove of the connecting rod (503) in a sliding mode, the cleaning sponge (504) and the lower surface of the cleaning scraping plate (502) are all abutted to the upper surface of the base (1), and the height of the upper surface of the weighing sensor (2) and the height of the upper surface of the base (1) are kept balanced.

6. The micro weight delivery system of claim 1, wherein: the outer surface of the weighing sensor (2) is adhered with a sealing ring (6), and the outer surface of the sealing ring (6) is abutted against the inner wall of the groove of the base (1).