CN112539812A

CN112539812A - Automatic weighing system

Info

Publication number: CN112539812A
Application number: CN202011419503.4A
Authority: CN
Inventors: 丛洋洋
Original assignee: Nantong Youli Sports Goods Co ltd
Current assignee: Nantong Youli Sports Goods Co ltd
Priority date: 2020-12-06
Filing date: 2020-12-06
Publication date: 2021-03-23

Abstract

The invention discloses an automatic weighing system, and relates to the technical field of article weighing equipment; the problem that qualified products and unqualified products cannot be classified and sorted automatically is solved; the device comprises three stand columns, wherein two connecting seats are arranged on the outer wall of one side of each of the three stand columns, an electric slide rail is arranged on the outer wall of one side of each of the two connecting seats, an auxiliary slide rail is arranged on the outer wall of one side, close to the electric slide rail, of each of the two connecting seats, the inner wall of the electric slide rail and the inner wall of the auxiliary slide rail are provided with the same support, air cylinders are arranged on the inner walls of the bottoms of the two support seats, electromagnetic chucks are arranged at the extending ends of the two air cylinders; and a distance sensor is arranged on the outer wall of one side of one of the upright columns. The invention can accurately and quickly classify the materials to be qualified, unqualified and put in, is convenient for people to directly sum up the materials in the later period, and effectively saves time.

Description

Automatic weighing system

Technical Field

The invention relates to the technical field of article weighing equipment, in particular to an automatic weighing system.

Background

The production mode that adopts automatic assembly line or semi-automatic assembly line of many products now, in order to guarantee the production yields of finished product, reduction in production cost, need carry out quality inspection to finished product, semi-manufactured goods or component in the production process of product to detect out bad finished product, semi-manufactured goods or component, avoid bad semi-manufactured goods or component to flow into in the next process, avoid bad finished product to flow out, the effectual finished product's of product yield and reduce cost that has improved. Some semi-finished products or components need to be checked to determine whether the quality of the semi-finished products or the components is qualified through weight detection, for example, in the production process of a lithium ion battery, the coating process of a battery core inevitably has influence on the battery capacity due to coating density fluctuation, so that the consistency of the battery is influenced; the cell weight is affected by coating density fluctuations, and therefore monitoring the cell weight is a necessary process for quality assurance in the battery production process.

Through retrieval, the Chinese patent with the application number of CN201921241174.1 discloses an automatic weighing system, which comprises a material conveying device and a weighing device; the automatic weighing device is characterized in that the weighing device is arranged on a weighing area and a conveying path of the material conveying device; the weighing device comprises a weighing sensor and a liftable bearing structure; the load-bearing structure is arranged above the weighing sensor. The automatic weighing system in the above patent has the following disadvantages: when the weight of the article is measured, the qualified article and the unqualified article cannot be classified and placed automatically, manual cooperation is needed, and therefore the working efficiency is low.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an automatic weighing system.

In order to achieve the purpose, the invention adopts the following technical scheme:

the automatic weighing system comprises three stand columns, wherein two connecting seats are arranged on the outer wall of one side of each of the three stand columns, an electric slide rail is arranged on the outer wall of one side of each of the two connecting seats, an auxiliary slide rail is arranged on the outer wall of one side, close to the electric slide rail, of each of the two connecting seats, the inner wall of the electric slide rail and the inner wall of the auxiliary slide rail are provided with the same support, air cylinders are arranged on the inner walls of the bottoms of the two support seats, electromagnetic chucks are arranged at the extending ends of the two air cylinders, and; a distance sensor is arranged on the outer wall of one side of one of the upright columns; it is three one side outer wall of stand is provided with same inspection seat, and the inspection seat is L type structure, and the bottom outer wall of inspection seat is provided with the second landing leg more than four, and the top outer wall of inspection seat has set gradually first box of placing and the box is placed to the second, and one side outer wall of inspection seat is provided with two labels.

Preferably: the outer wall of the bottom of the inspection seat is sequentially provided with a first material collecting box and a second material collecting box, the outer wall of one side of the first material collecting box and the outer wall of one side of the second material collecting box are respectively provided with a baffle, the inner wall of the bottom of the first material collecting box and the inner wall of the bottom of the second material collecting box are respectively provided with a weight sensor, and the outer wall of one side of the first material collecting box and the outer wall of one side of the second material collecting box are respectively provided with a warning lamp.

Preferably: the first rubber roller assembly is arranged on the inner wall of one side of the first placing box and the inner wall of one side of the second placing box, the first rubber roller assembly is arranged in an inclined mode, the second rubber roller assembly is arranged on the inner wall of one side, far away from the first rubber roller assembly, of the first placing box and the inner wall of one side, far away from the first rubber roller assembly, of the second placing box, and the second rubber roller assembly is arranged in an inclined mode.

Preferably: one of them one side outer wall of stand is provided with the feeding case, and the slope column structure is personally submitted to the bottom of feeding case, and the bottom outer wall of feeding case is provided with four first landing legs, and one side inner wall of feeding case is provided with the guide roll, and one side inner wall that the guide roll was kept away from to the feeding case is provided with spacing roller, and one side outer wall of feeding case is provided with adjust handle, and adjust handle's output is connected with the input of spacing roller through the transmission shaft, and the top inner wall of feeding case is provided with the limiting plate, and one side outer wall of limiting plate and the top inner wall of feeding case.

Preferably: the inner wall of one side of feeding case is provided with the conveying roller, and one side outer wall of one of them first landing leg is fixed with the motor through the roof, and the output of motor is connected with the input of conveying roller through the connecting axle.

Preferably: the bottom inner wall of inspection seat is provided with four second springs, and the other end of four second springs is provided with same tray, and the bottom outer wall of tray is provided with square piece, and the bottom inner wall of inspection seat is provided with second collision sensor, and the top outer wall of another connecting seat is provided with second light curtain sensor.

Preferably: the top outer wall of the inspection seat is provided with a weight measuring box, the bottom inner wall of the weight measuring box is provided with a first light curtain sensor, and the bottom inner wall of the weight measuring box is provided with a weighing sensor.

The invention has the beneficial effects that:

1. according to the invention, the weight value of material sorting is set in advance, and then the moving conveying distance is taken as a judgment reference, so that the materials can be accurately and quickly classified to be qualified, unqualified and thrown in after being weighed, the direct conclusion of people in the later period is facilitated, and the time is effectively saved.

2. When the material collecting device is used, classified materials are put into the first placing box or the second placing box and are sequentially conveyed into the first material collecting box or the second material collecting box through the first rubber roller assembly and the second rubber roller assembly in a rolling mode to be collected, the weight of the materials in the first material collecting box and the second material collecting box is detected by the two weight sensors in real time, the material collecting condition in the material collecting box is conveniently detected while the materials are collected, and the full load condition is avoided.

3. The two labels of the invention correspond to the first placing box and the second placing box respectively, so that people can distinguish products conveniently, the inclined first rubber roller component and the inclined second rubber roller component effectively slow down the impact force when materials fall, and the materials are prevented from being damaged by collision.

4. According to the invention, the adjusting handle is rotated according to the size of the material to be weighed, the distance between the limiting roller and the inner wall surface of the bottom of the feeding box is adjusted, then the material is put into the feeding box, when the material descends and contacts with the guide roller, the guide roller is pressed by the weight of the material and automatically rotates along with the addition of the material to convey the material, and the material conveyed in the feeding box is separated by the limiting roller, so that the material is sequentially weighed, and the weighing effect is prevented from being influenced by the stacking weighing of the material.

5. When the material separation device is used, separated materials automatically slide down to the conveying rollers in the feeding box, the materials are conveyed, discharged and weighed one by one during the rotation of the conveying rollers, the limiting plates limit the materials which are not measured in weight, and the materials are further prevented from being accumulated and discharged.

Drawings

FIG. 1 is a schematic diagram of a front expanded view of an automatic weighing system according to the present invention;

FIG. 2 is a schematic top sectional view of an automatic weighing system according to the present invention;

FIG. 3 is a schematic side view of a cross-sectional structure of an automatic weighing system according to the present invention;

FIG. 4 is a schematic diagram of an exploded structure of a test seat of the automatic weighing system according to the present invention;

FIG. 5 is a schematic view of a conveying roller structure of the automatic weighing system according to the present invention;

FIG. 6 is a schematic view of a structure of a limit roller of the automatic weighing system according to the present invention;

fig. 7 is a schematic circuit flow diagram of the automatic weighing system according to the present invention.

In the figure: the device comprises a vertical column 1, a connecting seat 2, an air cylinder 3, a feeding box 4, a first supporting leg 5, a weight sensor 6, a baffle 7, a first material collecting box 8, a second material collecting box 9, a warning lamp 10, an inspection seat 11, a guide roller 12, an adjusting handle 13, a motor 14, a conveying roller 15, a limiting plate 16, a weight measuring box 17, a first rubber roller assembly 18, an auxiliary sliding rail 19, an electric sliding rail 20, a support 21, a first light curtain sensor 22, a first collision sensor 23, a second light curtain sensor 24, a limiting roller 25, a first spring 26, a first placing box 27, a second placing box 28, a second supporting leg 29, a label 30, a tray 31, a square block 32, a second rubber roller assembly 33, a second collision sensor 34, a second spring 35, an electromagnetic suction cup 36, a distance sensor 37 and a weight sensor 38.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

An automatic weighing system, as shown in fig. 1-4 and 7, comprises three upright posts 1, two connecting seats 2 are fixed on the outer wall of one side of each of the three upright posts 1 through bolts, an electric slide rail 20 is arranged on the outer wall of one side of each of the two connecting seats 2, the switch control end of the electric slide rail 20 is electrically connected with a control module, an auxiliary slide rail 19 is arranged on the outer wall of one side of each of the two connecting seats 2, which is close to the electric slide rail 20, the inner wall of the electric slide rail 20 and the inner wall of the auxiliary slide rail 19 are slidably connected with the same support 21 through a slider, air cylinders 3 are fixed on the inner walls of the bottoms of the two support 21 through bolts, the switch control end of each air cylinder 3 is electrically connected with the control module, electromagnetic chucks 36 are fixed on the extending ends of the two air cylinders 3 through bolts, a first collision sensor 23 is fixed on the outer, the signal output end of the first collision sensor 23 is electrically connected with the control module; a distance sensor 37 is fixed on the outer wall of one side of one of the upright posts 1 through a bolt, the type of the distance sensor 37 is IFRM18N1702, and the signal output end of the distance sensor 37 is electrically connected with the control module; the outer wall of one side of the three upright posts 1 is connected with the same inspection seat 11 through bolts, the inspection seat 11 is of an L-shaped structure, the outer wall of the bottom of the inspection seat 11 is fixed with more than four second support legs 29 through bolts, the outer wall of the top of the inspection seat 11 is sequentially provided with a first placing box 27 and a second placing box 28, the outer wall of one side of the inspection seat 11 is fixed with two labels 30 through bolts, after the materials are weighed, the other electric slide rail 20 is started to drive the support 21 on the electric slide rail to move left and right, the auxiliary slide rail 19 plays an auxiliary support to reduce the moving weight of the support 21 in the electric slide rail 20, when one side of the support 21 touches the first collision sensor 23 during the moving period, the first collision sensor 23 sends a signal to the control module, the electric slide rail 20 on the control module is controlled to stop the operation through the electric connection, the control cylinder 3 and the electromagnetic chuck 36 are, the material that drives the absorption removes, distance sensor 37 real-time detection and support 21's distance during this period, and transmission signal to control module, set for the scope according to the weight of material, control module passes through opening of the electronic slide rail 20 of real-time distance signal control of distance sensor 37 transmission and stops, reach and match the back with the weight value after the distance, control electromagnet 36 closes, the material is put in first place box 27 or the second place in the box 28 can, two labels 30 place box 27 and second respectively with first place and place box 28 and correspond, people of being convenient for distinguish the product, this structure is through setting for the weight value that the material was selected separately in advance, then use removal transport distance as the judgement benchmark, after the material is weighed, can be accurate and quick classify and put in the material, people's the direct conclusion in later stage of being convenient for, effectively save time.

To facilitate collection of the weighed material; as shown in fig. 1, 2, 4 and 7, the outer wall of the bottom of the inspection seat 11 is sequentially fixed with a first material collecting box 8 and a second material collecting box 9 through bolts, the outer wall of one side of the first material collecting box 8 and the outer wall of one side of the second material collecting box 9 are both rotationally connected with a baffle 7 through rotating shafts, the inner wall of the bottom of the first material collecting box 8 and the inner wall of the bottom of the second material collecting box 9 are both fixed with a weight sensor 6 through bolts, the type of the weight sensor 6 is xtl-2dc, the signal output end of the weight sensor 6 is electrically connected with a control module, the outer wall of one side of the first material collecting box 8 and the outer wall of one side of the second material collecting box 9 are both fixed with warning lamps 10 through bolts, the switch control end of the warning lamps 10 is electrically connected with the control module, the inner wall of one side of the first placing box 27 and the inner wall of one side of the second placing box 28, the first rubber roller assemblies 18 are arranged in an inclined manner, the inner wall of one side of the first placing box 27, which is far away from the first rubber roller assembly 18, and the inner wall of one side of the second placing box 28, which is far away from the first rubber roller assembly 18, are both rotatably connected with the second rubber roller assembly 33 through rotating shafts, the second rubber roller assembly 33 is arranged in an inclined manner, when the classified materials are put into the first placing box 27 or the second placing box 28, the classified materials are sequentially conveyed into the first material collecting box 8 or the second material collecting box 9 through the first rubber roller assembly 18 and the second rubber roller assembly 33 in a rolling manner to be collected, the two weight sensors 6 detect the weight of the materials in the first material collecting box 8 and the second material collecting box 9 in real time, when a set value is reached, a signal is transmitted to the control module, the electric connection of the control warning lamp 10 is started, so as to prompt people to take the materials as soon as possible, the first material collecting, the material collecting condition in the aggregate box can be conveniently detected while the material is collected, the full load condition is avoided, the impact force generated when the material descends is effectively relieved by the inclined first rubber roller assembly 18 and the inclined second rubber roller assembly 33, and the material is prevented from being damaged by collision.

To facilitate weighing of the separated materials; as shown in fig. 1-3, 5 and 6, a feeding box 4 is fixed on an outer wall of one side of one of the columns 1 through a bolt, the bottom of the feeding box 4 is in an inclined structure, four first legs 5 are fixed on an outer wall of the bottom of the feeding box 4 through bolts, a guide roller 12 is rotatably connected on an inner wall of one side of the feeding box 4 through a rotating shaft, a limit roller 25 is rotatably connected on an inner wall of one side of the feeding box 4 away from the guide roller 12 through a rotating shaft, an adjusting handle 13 is rotatably connected on an outer wall of one side of the feeding box 4 through a rotating shaft, an output end of the adjusting handle 13 is connected with an input end of the limit roller 25 through a transmission shaft, a limit plate 16 is rotatably connected on an inner wall of the top of the feeding box 4 through a rotating shaft, the same first spring 26 is welded on an outer wall of one side of the limit, one side outer wall of one of the first supporting legs 5 is fixed with a motor 14 through a top plate, an output end of the motor 14 is connected with an input end of a conveying roller 15 through a connecting shaft, an adjusting handle 13 is rotated according to the size of a material to be weighed, the spacing distance between a limiting roller 25 and the inner wall surface of the bottom of a feeding box 4 is adjusted, then the material is put into the feeding box 4, when the material descends and contacts with a guide roller 12, the guide roller 12 is pressed by the weight of the material and automatically rotates along with the addition of the material to convey the material, the material conveyed in the feeding box 4 is separated through the limiting roller 25, the material is convenient to sequentially weigh, the phenomenon that the material is piled up and weighed to influence the weighing effect is avoided, the motor 14 is started to drive the conveying roller 15 to rotate, the separated material automatically slides down to the conveying roller 15 in the feeding box 4 and is conveyed one by one another during the rotation of the conveying, further avoid the material to pile up the ejection of compact.

To facilitate measuring the weight of the material; as shown in fig. 2-4 and 7, four second springs 35 are welded on the inner bottom wall of the inspection socket 11, the same tray 31 is welded on the other end of the four second springs 35, a square block 32 is fixed on the outer bottom wall of the tray 31 through bolts, a second collision sensor 34 is fixed on the inner bottom wall of the inspection socket 11 through bolts, the model of the second collision sensor 34 is DFROBOT, the signal output end of the second collision sensor 34 is electrically connected with the control module, a second light curtain sensor 24 is fixed on the outer top wall of the other connecting socket 2 through bolts, the model of the second light curtain sensor 24 is DLM40-4-J, the signal output end of the second light curtain sensor 24 is electrically connected with the control module, a weight measuring box 17 is fixed on the outer top wall of the inspection socket 11 through bolts, a first light curtain sensor 22 is fixed on the inner bottom wall of the weight measuring box 17 through bolts, the model of the first light curtain sensor 22 is DLM40-4-J, the signal output end of the first light curtain sensor 22 is electrically connected with the control module, the weighing sensor 38 is fixed on the inner wall of the bottom of the weight measuring box 17 through a bolt, the model of the weighing sensor 38 is PTS124-133G, the signal output end of the weighing sensor 38 is electrically connected with the control module, after the material is conveyed to the tray 31 by the conveying roller 15, the material compresses the tray 31 to press the second spring 35, the square block 32 collides with the second collision sensor 34, the second collision sensor 34 transmits a signal to the control module, the second collision sensor 34 electrically connects and controls one of the electric slide rails 20 to drive the support 21 thereon to move left and right, when the cylinder 3 thereon shields the emission signal of the second light curtain sensor 24, the second light curtain sensor 24 transmits a signal to the control module, which controls the electric slide rail 20 to stop working, the cylinder 3 and the electromagnetic chuck 36 on the material are controlled to be started simultaneously, the electric slide rail 20 is started again after the material is sucked, the sucked material is driven to move, after the emission signal of the first light curtain sensor 22 is shielded during moving, the first light curtain sensor 22 transmits a signal to the control module, the electromagnetic chuck 36 is controlled to close the thrown material to the weight measuring box 17, after the material is thrown, the weighing sensor 38 measures the weight of the material in real time, when the weighing sensor 38 detects the weight of the material and the first light curtain sensor 22 is shielded simultaneously, the control module is electrically connected with the control classification structure, and the material is classified to be qualified and unqualified according to the weight of the material.

When the weighing device is used, the adjusting handle 13 is rotated according to the size of a material to be weighed, the distance between the limiting roller 25 and the inner wall surface of the bottom of the feeding box 4 is adjusted, then the material is thrown into the feeding box 4, when the material descends and contacts with the guide roller 12, the guide roller 12 is pressed by the weight of the material and automatically rotates along with the addition of the material to convey the material, the material conveyed in the feeding box 4 is separated through the limiting roller 25, the conveying roller 15 is driven to rotate by the starting motor 14, the separated material automatically slides downwards to the conveying roller 15 in the feeding box 4, the material is conveyed and discharged one by one during the rotation of the conveying roller 15, the limiting plate 16 limits the material which is not weighed, after the material is conveyed to the tray 31 by the conveying roller 15, the material compresses the tray 31 to press the second spring 35, and after the square block 32 collides with the second collision sensor 34, the second collision sensor 34 transmits a signal to the control, the control module is electrically connected with and controls one of the electric slide rails 20 to drive the support 21 thereon to move left and right, when the cylinder 3 thereon blocks the emission signal of the second light curtain sensor 24, the second light curtain sensor 24 transmits a signal to the control module, the control module controls the electric slide rail 20 to stop working, and simultaneously controls the cylinder 3 and the electromagnetic chuck 36 thereon to start, after the material is absorbed, the electric slide rail 20 is started again to drive the absorbed material to move, when the electric slide rail blocks the emission signal of the first light curtain sensor 22 during moving, the first light curtain sensor 22 transmits a signal to the control module, which controls the electromagnetic chuck 36 to close and put in the material into the weight measuring box 17, after the material is put in, the weighing sensor 38 carries out real-time weight measurement on the material, when the weighing sensor 38 detects the weight of the material and the first light curtain sensor 22 is simultaneously blocked, the control module is electrically connected with and controls and starts the other electric slide rail 20 to drive, the auxiliary slide rail 19 plays an auxiliary support role, the moving weight of the support 21 in the electric slide rail 20 is reduced, when one side of the support 21 touches the first collision sensor 23 during moving, the first collision sensor 23 sends a signal to the control module, the control module is electrically connected with the electric slide rail 20 to control the electric slide rail 20 to stop working, and controls the cylinder 3 and the electromagnetic chuck 36 on the electric slide rail to start, the electric slide rail 20 is started again after materials are sucked to drive the sucked materials to move, the distance sensor 37 detects the distance from the support 21 in real time during the period and transmits the signal to the control module, according to the weight setting range of the materials, the control module controls the electric slide rail 20 to start and stop through the real-time distance signal transmitted by the distance sensor 37, after the distance matched with the weight value is reached, the electromagnetic chuck 36 is controlled to close, the materials are placed in the first placing box 27 or the second placing, two labels 30 respectively with first place the box 27 and the box 28 is placed to the second, the people of being convenient for distinguish the product, when the material after the classification is put into first place the box 27 or the box 28 is placed to the second, loop through first rubber roller subassembly 18 and second rubber roller subassembly 33 and roll and carry and collect in first album of material box 8 or the second collection of material box 9, two weight sensor 6 detect the material weight in first collection of material box 8 and the second collection of material box 9 in real time, transmit signal gives control module after reaching the setting value, its electric connection controls warning light 10 to start, the suggestion people gets goods as early as possible, later stage rotation baffle 7 opens first collection of material box 8 or second collection of material box 9 and takes away the material can.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The automatic weighing system comprises three stand columns (1), and is characterized in that two connecting seats (2) are arranged on the outer wall of one side of each of the three stand columns (1), electric slide rails (20) are arranged on the outer wall of one side of each of the two connecting seats (2), auxiliary slide rails (19) are arranged on the outer wall of one side, close to the electric slide rails (20), of each of the two connecting seats (2), the same support (21) is arranged on the inner wall of each of the electric slide rails (20) and the inner wall of each of the auxiliary slide rails (19), an air cylinder (3) is arranged on the inner wall of the bottom of each of the two supports (21), an electromagnetic chuck (36) is arranged at the extending end of each of the two air cylinders (3); a distance sensor (37) is arranged on the outer wall of one side of one of the upright columns (1); it is three one side outer wall of stand (1) is provided with same inspection seat (11), and inspection seat (11) are L type structure, and the bottom outer wall of inspection seat (11) is provided with second landing leg (29) more than four, and the top outer wall of inspection seat (11) has set gradually first box (27) of placing and second box (28) of placing, and one side outer wall of inspection seat (11) is provided with two labels (30).

2. The automatic weighing system according to claim 1, wherein the outer bottom wall of the inspection seat (11) is provided with a first material collecting box (8) and a second material collecting box (9) in sequence, the outer side wall of one side of the first material collecting box (8) and the outer side wall of one side of the second material collecting box (9) are both provided with a baffle (7), the inner bottom wall of the first material collecting box (8) and the inner bottom wall of the second material collecting box (9) are both provided with a weight sensor (6), and the outer side wall of one side of the first material collecting box (8) and the outer side wall of one side of the second material collecting box (9) are both provided with a warning lamp (10).

3. The automatic weighing system according to claim 2, wherein a side inner wall of the first placing box (27) and a side inner wall of the second placing box (28) are provided with a first rubber roller assembly (18), the first rubber roller assemblies (18) are arranged in an inclined manner, a side inner wall of the first placing box (27) far away from the first rubber roller assembly (18) and a side inner wall of the second placing box (28) far away from the first rubber roller assembly (18) are provided with a second rubber roller assembly (33), and the second rubber roller assemblies (33) are arranged in an inclined manner.

4. The automatic weighing system according to claim 1, wherein a feeding box (4) is arranged on the outer wall of one side of one of the upright columns (1), the bottom of the feeding box (4) is of an inclined structure, four first support legs (5) are arranged on the outer wall of the bottom of the feeding box (4), a guide roller (12) is arranged on the inner wall of one side of the feeding box (4), a limiting roller (25) is arranged on the inner wall of one side, away from the guide roller (12), of the feeding box (4), an adjusting handle (13) is arranged on the outer wall of one side of the feeding box (4), the output end of the adjusting handle (13) is connected with the input end of the limiting roller (25) through a transmission shaft, a limiting plate (16) is arranged on the inner wall of the top of the feeding box (4), and the same first spring (26) is arranged on the outer wall of one side.

5. The automatic weighing system according to claim 4, wherein the feeding box (4) is provided with a conveying roller (15) on one side of the inner wall, a motor (14) is fixed on one side of the outer wall of one of the first support legs (5) through a top plate, and the output end of the motor (14) is connected with the input end of the conveying roller (15) through a connecting shaft.

6. Automatic weighing system according to any one of claims 1-5, characterised in that the bottom inner wall of the test receptacle (11) is provided with four second springs (35), the other ends of the four second springs (35) are provided with one and the same tray (31), the bottom outer wall of the tray (31) is provided with a square block (32), the bottom inner wall of the test receptacle (11) is provided with a second collision sensor (34), and the top outer wall of the other connection receptacle (2) is provided with a second light curtain sensor (24).

7. Automatic weighing system according to claim 6, characterized in that the top outer wall of the test seat (11) is provided with a weighing box (17), the bottom inner wall of the weighing box (17) is provided with a first light curtain sensor (22), and the bottom inner wall of the weighing box (17) is provided with a weighing sensor (38).