Storage battery grid weight detection device

Abstract

The invention discloses a storage battery grid weight detection device. The device comprises a support; the middle of the balance part is rotationally connected with the top of the support, one end of the balance part is rotationally connected with a hanging basket, and weights are placed in the hanging basket; the discharging assembly comprises a first conveying belt, a second conveying belt and a third conveying belt which are sequentially arranged from top to bottom; a feeding channel; the horizontal pushing assembly is arranged above the balance part and is used for pushing the grid to move; according to the invention, the weights of the balance parts are distinguished according to different heights of the grids with different weights within the specified time, blanking is carried out according to the different heights, qualified products and unqualified products are distinguished without measuring the specific weight of the grids, the structure is stable and reliable, errors are not easy to occur, the device can be butted with an assembly line, and the production efficiency is improved. And whether the weight of the grid is qualified or not is continuously detected.

Description

Technical Field

[0001] The invention belongs to the technical field of battery detection, and in particular relates to a battery grid weight detection device. Background Art

[0002] The structure of lead-acid batteries is mainly composed of positive and negative plates, separators, safety valves, battery tanks, middle covers and electrolytes. The positive and negative plates are mainly lead alloy grids, which are loaded with active substances. Lead alloy grids are important components in batteries, accounting for 20% to 30% of the total mass of batteries. After the grid is produced, it is necessary to perform a weight test to determine whether the grid is qualified. If the weight of the grid is within the allowable range, the weight test is qualified. If the weight of the grid is lower than or exceeds the allowable range, the weight of the grid is unqualified. If the unqualified rate is too high, the production equipment of the grid needs to be checked and corresponding debugging needs to be performed.

[0003] The Chinese utility model patent with publication number CN204881689U discloses an online detection device for grid thickness and weight, which relates to the field of flat lead-acid battery grid processing technology, including a cabinet, on which a display screen, a control panel, a workbench, and an electric control box are installed. The control panel includes a card reader and buttons, an ultrasonic sensor is installed on the workbench, an operating table is provided on the workbench, and a weight sensor is installed under the operating table. The utility model online detection device has a simple structure and is easy to use; the weight and thickness index of the lead-acid battery grid can be detected by the ultrasonic sensor and the weight sensor; by summarizing and analyzing the detected data, the production process can be improved, the uniformity of the weight of the large grid piece, the weight of the small grid piece, and the thickness of the frame can be improved, the product qualification rate can be improved, and then the consistency of the battery capacity can be improved, and the battery life can be extended.

[0004] This type of grid weight detection device has low efficiency and is not convenient for connecting to the production line to achieve continuous detection of whether the grid weight is qualified. Summary of the invention

[0005] The object of the present invention is to provide a battery grid weight detection device to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A battery grid weight detection device, comprising:

[0008] Bracket;

[0009] A balancing member, wherein the middle part is rotatably connected to the top of the bracket, and one end of the balancing member is rotatably connected to a hanging basket, wherein a weight is placed in the hanging basket;

[0010] A material unloading assembly, comprising a first conveyor belt, a second conveyor belt and a third conveyor belt arranged in sequence from top to bottom, wherein the first conveyor belt, the second conveyor belt and the third conveyor belt are located at an end of the balancing member away from the hanging basket;

[0011] A feed channel, which is fixed to the top of the bracket and has one end close to the balance member, and is used for grid feeding. One end of the feed channel away from the balance member is connected to a flow line;

[0012] A horizontal pushing component is arranged above the balancing member and is used for pushing the grid to move.

[0013] The present invention uses a bracket to install a balancing piece, and the balancing piece is used to detect the weight of the grid. Grids of different weights drive the balancing piece to rotate at different angles within a specified time. A feeding assembly is used to feed the grid. The first conveyor belt, the second conveyor belt and the third conveyor belt are set at different heights to receive grids of different weights. The first conveyor belt is used to receive grids with a weight less than an allowable range, that is, grids with unqualified weight. The second conveyor belt is used to receive grids with a weight within an allowable range, that is, grids with qualified weight. The third conveyor belt is used to receive grids with a weight greater than the allowable range, that is, grids with unqualified weight. The provided feed channel is used to connect the assembly line and the balancing piece, so that the produced grid can be transported to the balancing piece through the assembly line for inspection. The provided horizontal pushing assembly is used to push the grid on the feed channel onto the balancing piece for inspection, and to push the inspected grid onto the unloading assembly. The present invention uses grids of different weights to make the balancing piece reach different heights within a specified time to distinguish weights, and unloads according to the different heights. Without measuring the specific weight of the grid, qualified and unqualified products can be distinguished. The structure is stable and reliable, not prone to errors, and can be connected to the assembly line to achieve continuous inspection of whether the grid weight is qualified.

[0014] This device needs to be debugged before use. By placing weights of reasonable mass in the hanging basket, when the grid standard part is placed on the end of the balance part away from the weight, the balance part is in a balanced state. The position of the balance part in the balanced state is used as the initial position for subsequent detection; when the weight of the grid is greater than or less than the weight of the grid standard part, the balance part will start to rotate from the initial position, and the end away from the weight will drop or rise. Within the specified time, the greater the weight difference between the grid and the grid standard part, the greater the angle of rotation of the balance part.

[0015] Furthermore, the bracket includes two vertically arranged support arms and a crossbeam for connecting the two support arms, the crossbeam is located below the balancing member, and the balancing member is located between the two support arms. The arranged support arms are used to install the balancing member and the feed channel.

[0016] Furthermore, the balancing member includes a sub-screen plate, an L-shaped connecting arm and a rotating shaft, one end of the sub-screen plate and one end of the L-shaped connecting arm are fixed to the rotating shaft, both ends of the rotating shaft are rotatably connected to the two support arms respectively, the rotating shaft and the L-shaped connecting arm and the support arm are vertically arranged, the rotating shaft and the sub-screen plate are arranged in parallel, the sub-screen plate is used to place the grid, the L-shaped connecting arm and the hanging basket are used to place weights, so that when the grid standard part is placed on the sub-screen plate, the balancing member can be in a balanced state; wherein the L-shaped connecting arm can also enable the balancing member to avoid the feed channel to prevent the balancing member from hitting the grid on the feed channel when it rotates.

[0017] Furthermore, the feed channel includes two sections of angle steels arranged parallel to each other, and the ends of the two sections of the angle steels are respectively fixed to the tops of the two support arms. The upper part of the angle steel is provided with a limiting bar parallel to the angle steel. The angle steel is used to receive the grating transported from the assembly line, and the limiting bar is used to limit the grating at the same time, so that the grating can only move along the length direction of the angle steel when on the angle steel. When the grating moves toward the sub-screen plate on the angle steel, the grating can resist the sub-screen plate, so that the sub-screen plate rotates around the rotating axis and returns to its initial position.

[0018] Furthermore, the horizontal pushing assembly includes a linear module arranged above the balancing member, and a first telescopic cylinder pointing vertically downward is arranged on a slide table of the linear module, a horizontally arranged connecting plate is fixed to the bottom end of the telescopic rod of the first telescopic cylinder, and vertical push rods are fixed to both ends of the bottom surface of the connecting plate, and a clearance slot for the push rod to pass through is provided on the sub-screen plate, and the push rod is used to push the grid to move, so that the grid can be pushed from the feed channel to the sub-screen plate, and the grid can also be pushed from the sub-screen plate to the unloading assembly, and the linear module is used to drive the first telescopic cylinder to move in the horizontal direction, thereby driving the push rod to move, and the first telescopic cylinder is used to drive the push rod to rise and fall, and the connecting plate is used to install the push rod so that the push rod can avoid the balancing member.

[0019] Furthermore, the first conveyor belt, the second conveyor belt and the third conveyor belt are all hinged with an extension plate at one end close to the sub-screening plate. The arranged extension plate is used to adjust the height at which the first conveyor belt, the second conveyor belt and the third conveyor belt are connected to the sub-screening plate, so as to facilitate testing of grids of different specifications.

[0020] Furthermore, an angle sensor is provided at one end of the rotating shaft for recording the rotation angle of the rotating shaft. Different rotation angles correspond to different weights of the grid, and the specific weight of the grid can be further measured by the angle sensor.

[0021] Furthermore, a positioning plate is fixed to one end of the rotating shaft away from the angle sensor, and the positioning plate is arranged parallel to the sub-screen plate. A mounting plate is arranged on the support arm corresponding to the positioning plate, and a clamping cylinder is arranged on the mounting plate. The positioning plate is located between the clamping jaws of the clamping jaw cylinder. The arranged positioning plate is used to position the sub-screen plate, and the arranged clamping jaw cylinder can clamp the positioning plate, so as to fix the sub-screen plate in the initial position. The opened clamping jaws can also limit the rotation angle of the sub-screen plate. When the rotation angle of the sub-screen plate is too large, the clamping jaws can be used to block the sub-screen plate to facilitate the unloading of the grid.

[0022] Furthermore, a second telescopic cylinder for limiting the rotation of the rotating shaft is provided on the mounting plate, and the telescopic rod of the second telescopic cylinder is coaxially arranged with the rotating shaft. The telescopic rod of the second telescopic cylinder can be extended to press the rotating shaft tightly to prevent the rotating shaft from rotating, thereby fixing the sub-screening plate for easy material unloading.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention uses a bracket to install a balancing piece, and the balancing piece is used to detect the weight of the grid. Grids of different weights drive the balancing piece to rotate at different angles within a specified time. A feeding assembly is used to feed the grid. The first conveyor belt, the second conveyor belt and the third conveyor belt are set at different heights to receive grids of different weights. The first conveyor belt is used to receive grids with a weight less than an allowable range, that is, grids with unqualified weight. The second conveyor belt is used to receive grids with a weight within an allowable range, that is, grids with qualified weight. The third conveyor belt is used to receive grids with a weight greater than the allowable range, that is, grids with unqualified weight. The provided feed channel is used to connect the assembly line and the balancing piece, so that the produced grid can be transported to the balancing piece through the assembly line for inspection. The provided horizontal pushing assembly is used to push the grid on the feed channel onto the balancing piece for inspection, and to push the inspected grid onto the unloading assembly. The present invention uses grids of different weights to make the balancing piece reach different heights within a specified time to distinguish weights, and unloads according to the different heights. Without measuring the specific weight of the grid, qualified and unqualified products can be distinguished. The structure is stable and reliable, not prone to errors, and can be connected to the assembly line to achieve continuous inspection of whether the grid weight is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of a battery grid weight detection device in this embodiment;

[0026] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0027] Figure 3This is a top view of a battery grid weight detection device in this embodiment;

[0028] In the figure: 1. bracket; 101. support arm; 102. crossbeam; 2. balance member; 201. sub-screening plate; 202. L-shaped connecting arm; 203. rotating shaft; 204. hanging basket; 205. weight; 206. clearance slot; 3. unloading assembly; 301. first conveyor belt; 302. second conveyor belt; 303. third conveyor belt; 304. extension plate; 4. feeding channel; 401. angle steel; 402. limit strip; 5. plate grid; 6. horizontal pushing assembly; 601. linear module; 602. first telescopic cylinder; 603. connecting plate; 604. push rod; 7. angle sensor; 8. positioning plate; 9. mounting plate; 10. clamping claw cylinder; 11. second telescopic cylinder; 12. assembly line. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-3 As shown, this embodiment provides a battery grid weight detection device, including a bracket 1, a balancing member 2, a feeding assembly 3, a feeding channel 4 and a horizontal pushing assembly 6.

[0031] The bracket 1 includes two vertically arranged support arms 101 and a crossbeam 102 for connecting the two support arms 101 . The crossbeam 102 is located below the balancing member 2 . The balancing member 2 is located between the two support arms 101 . The arranged support arms 101 are used to install the balancing member 2 and the feed channel 4 .

[0032] The middle part of the balancing member 2 is rotatably connected to the top of the bracket 1, and one end of the balancing member 2 is rotatably connected to a hanging basket 204, in which a weight 205 is placed; possibly, the balancing member 2 includes a sub-screen plate 201, an L-shaped connecting arm 202 and a rotating shaft 203, one end of the sub-screen plate 201 and one end of the L-shaped connecting arm 202 are fixed to the rotating shaft 203, and both ends of the rotating shaft 203 are rotatably connected to the two supporting arms 101, respectively, the rotating shaft 203 and the L-shaped connecting arm 202 and the supporting arm 101 are vertically arranged, and the rotating shaft 203 is arranged parallel to the sub-screen plate 201, The sub-screen plate 201 is used to place the grid 5, and the L-shaped connecting arm 202 and the hanging basket 204 are used to place the weight 205, so that when the standard grid 5 is placed on the sub-screen plate 201, the balancing piece 2 can be in a balanced state, and when the balancing piece 2 can be in a balanced state, the sub-screen plate 201 is in a horizontal state; the L-shaped connecting arm 202 can also enable the balancing piece 2 to avoid the feed channel 4 to prevent the balancing piece 2 from hitting the grid 5 located on the feed channel 4 when it rotates; an anti-skid layer can be provided on the sub-screen plate 201 to prevent the grid 5 from sliding when the sub-screen plate 201 rotates.

[0033] The unloading assembly 3 includes a first conveyor belt 301 , a second conveyor belt 302 and a third conveyor belt 303 which are arranged in sequence from top to bottom. The first conveyor belt 301 , the second conveyor belt 302 and the third conveyor belt 303 are located at one end of the balancing member 2 away from the hanging basket 204 .

[0034] The feed channel 4 is fixed to the top of the bracket 1, and one end of it is close to the balance piece 2, which is used for feeding the grid 5. The end of the feed channel 4 away from the balance piece 2 is connected to the assembly line. Possibly, the feed channel 4 includes two sections of angle steels 401 arranged parallel to each other, and the ends of the two sections of angle steels 401 are respectively fixed to the tops of the two support arms 101. The upper part of the angle steel 401 is provided with a limiting strip 402 parallel to the angle steel 401. The grid 5 transported by the assembly line is received by the angle steel 401, and the limiting strip 402 is used to limit the grid 5 at the same time, so that the grid 5 can only move along the length direction of the angle steel 401 when on the angle steel 401. When the grid 5 moves toward the sub-screen plate 201 on the angle steel 401, the grid 5 can resist the sub-screen plate 201, so that the sub-screen plate 201 rotates around the rotating shaft 203 to restore the initial position.

[0035] A horizontal pushing assembly 6 is arranged above the balancing member 2 and is used to push the grid 5 to move; possibly, the horizontal pushing assembly 6 includes a linear module 601 arranged above the balancing member 2, a first telescopic cylinder 602 is arranged vertically downward on the slide of the linear module 601, a horizontally arranged connecting plate 603 is fixed to the bottom end of the telescopic rod of the first telescopic cylinder 602, vertical push rods 604 are fixed to both ends of the bottom surface of the connecting plate 603, and a clearance slot 206 for the push rod 604 to pass through is opened on the sub-screen plate 201, The push rod 604 is used to push the grid 5 to move, and can push the grid 5 from the feed channel 4 to the sub-screen plate 201, and can also push the grid 5 from the sub-screen plate 201 to the unloading component 3. The linear module 601 is used to drive the first telescopic cylinder 602 to move in the horizontal direction, thereby driving the push rod 604 to move. The first telescopic cylinder 602 is used to drive the push rod 604 to rise and fall. The connecting plate 603 is used to install the push rod 604, so that the push rod 604 can avoid the balance member 2.

[0036] The present invention uses a bracket 1 to install a balancing member 2, and uses the balancing member 2 to detect the weight of a grid 5. Grids 5 of different weights drive the balancing member 2 to rotate at different angles within a specified time. A feeding assembly 3 is used to feed the grid 5. The first conveyor belt 301, the second conveyor belt 302 and the third conveyor belt 303 are arranged at different heights to receive grids 5 of different weights. The first conveyor belt 301 is used to receive grids 5 of a weight less than an allowable range, i.e., grids 5 of unqualified weight. The second conveyor belt 302 is used to receive grids 5 of a weight within an allowable range, i.e., grids 5 of qualified weight. The third conveyor belt 303 is used to receive grids 5 of a weight greater than an allowable range, i.e., grids 5 of unqualified weight. Qualified grids 5; the feed channel 4 is provided for connecting the assembly line and the balancing member 2, so that the produced grids 5 can be transported to the balancing member 2 through the assembly line for inspection; the horizontal pushing assembly 6 is provided for pushing the grids 5 on the feed channel 4 onto the balancing member 2 for inspection, and pushing the inspected grids 5 onto the unloading assembly 3. The present invention distinguishes the weights of the balancing member 2 by making the grids 5 of different weights reach different heights within a specified time, and unloads the material according to the different heights. Without measuring the specific weight of the grids 5, qualified products can be distinguished from unqualified products. The structure is stable and reliable, not prone to errors, and can be docked with the assembly line to achieve continuous inspection of whether the weight of the grids 5 is qualified.

[0037] This device needs to be debugged before use. By placing a weight 205 of reasonable mass on the hanging basket 204, when the grid 5 standard part is placed on the end of the balancing part 2 away from the weight 205, the balancing part 2 is in a balanced state, and the position of the balancing part 2 in the balanced state is used as the initial position for subsequent detection; wherein, the grid 5 standard part is a grid 5 of standard weight, for example, the weight of the grid 5 is specified to be 30g, that is, the weight of the grid 5 standard part is 30g, and the grids 5 within the allowable error range are all qualified products, for example, the allowable error is 1g, then the weight of the grid 5 is qualified within the range of 29g to 31g; when the weight of the grid 5 is greater than or less than the weight of the grid 5 standard part, the balancing part 2 will start to rotate from the initial position, and its end away from the weight 205 will drop or rise, and within the specified time, the distance between the grid 5 and the grid 5 standard part is The greater the weight difference, the greater the angle of rotation of the balance member 2, and the greater the amplitude of descent or rise of the end of the balance member 2 away from the weight 205; when the weight of the qualified grid 5 is the minimum value allowed by the error, the height reached by the end of the balance member 2 away from the weight 205 within the specified time is defined as the first height, and the height set by the first conveyor belt 301 corresponds to the first height, which is used to receive the grid 5 with a weight less than the qualified weight; when the weight of the qualified grid 5 is the maximum value allowed by the error, the height reached by the end of the balance member 2 away from the weight 205 within the specified time is defined as the second height, and the height set by the second conveyor belt 302 corresponds to the second height, which is used to receive the grid 5 with a qualified weight; the height of the third conveyor belt 303 is lower than the lowest height that the end of the balance member 2 away from the weight 205 can reach within the specified time, and is used to receive the grid 5 with a weight greater than the qualified weight.

[0038] Furthermore, an extension plate 304 is hingedly connected at one end of the first conveyor belt 301, the second conveyor belt 302 and the third conveyor belt 303 close to the sub-screening plate 201. The extension plate 304 is used to adjust the height at which the first conveyor belt 301, the second conveyor belt 302 and the third conveyor belt 303 are connected to the sub-screening plate 201, so as to facilitate testing of grids 5 of different specifications.

[0039] Furthermore, an angle sensor 7 is provided at one end of the rotating shaft 203 for recording the rotation angle of the rotating shaft 203 . Different rotation angles correspond to different weights of the grid 5 , and the specific weight of the grid 5 can be further measured by the angle sensor 7 .

[0040] Furthermore, a positioning plate 8 is fixed to one end of the rotating shaft 203 away from the angle sensor 7, and the positioning plate 8 is arranged parallel to the sub-screen plate 201. A mounting plate 9 is arranged on the support arm 101 corresponding to the positioning plate 8, and a clamping cylinder 10 is arranged on the mounting plate 9. The positioning plate 8 is located between the clamping claws of the clamping claw cylinder 10. The arranged positioning plate 8 is used to position the sub-screen plate 201, and the arranged clamping claw cylinder 10 can clamp the positioning plate 8, so as to fix the sub-screen plate 201 in the initial position, and the fixed position is accurate. The opened clamping claw can also limit the rotation angle of the sub-screen plate 201, and further limit the maximum height and the minimum height that the sub-screen plate 201 can reach; when the rotation angle of the sub-screen plate 201 is too large, the clamping claw can be used to block the sub-screen plate 201, so as to facilitate the unloading of the plate grid 5.

[0041] Furthermore, a second telescopic cylinder 11 for limiting the rotation of the rotating shaft 203 is provided on the mounting plate 9. The telescopic rod of the second telescopic cylinder 11 is coaxially arranged with the rotating shaft 203. The telescopic rod of the second telescopic cylinder 11 can be extended to press the rotating shaft 203 tightly to prevent the rotating shaft 203 from rotating, thereby fixing the sub-screen plate 201 for easy material unloading. A rubber pad can be provided at the end of the telescopic rod of the second telescopic cylinder 11 to increase the friction between the rotating shaft 203 and to provide a buffer between the telescopic rod of the second telescopic cylinder 11 and the rotating shaft 203. The second telescopic cylinder 11 cooperates with the clamping claw cylinder 10 to accurately fix the sub-screen plate 201 in the initial position, and can also quickly release the sub-screen plate 201 and quickly fix the sub-screen plate 201 within a certain period of time without changing the position of the sub-screen plate 201.

[0042] Working principle: The assembly line transports the grid 5 to the feed channel 4, the linear module 601 drives the push rod 604 to push the grid 5, the grid 5 moves toward the sub-screen plate 201 and pushes the sub-screen plate 201 to rotate, so that the sub-screen plate 201 returns to its initial position, at this time the clamping claw cylinder 10 clamps the sub-screen plate 201, and calibrates the position of the sub-screen plate 201 more accurately, the telescopic rod of the second telescopic cylinder 11 extends, and the rotating shaft 203 is pressed against, and the rotating shaft 203 is fixed. Fix, release the clamping cylinder 10, and wait for the grid 5 to be completely pushed onto the sub-screen plate 201; after the grid 5 is completely pushed onto the sub-screen plate 201, the telescopic rod of the second telescopic cylinder 11 contracts, and the sub-screen plate 201 moves according to the weight of the grid 5. After a specified period of time, the telescopic rod of the second telescopic cylinder 11 extends out to fix the rotating shaft 203, and the linear module 601 then drives the push rod 604 to push the grid 5, and pushes the grid 5 onto the unloading component 3 to realize unloading.

[0043] It should be noted that although the present invention is disclosed as above by specific embodiments, the above embodiments are not intended to limit the present invention. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A battery grid weight detection device, characterized in that: include: Bracket; A balancing member, wherein the middle part is rotatably connected to the top of the bracket, and one end of the balancing member is rotatably connected to a hanging basket, wherein a weight is placed in the hanging basket; A material unloading assembly, comprising a first conveyor belt, a second conveyor belt and a third conveyor belt arranged in sequence from top to bottom, wherein the first conveyor belt, the second conveyor belt and the third conveyor belt are located at an end of the balancing member away from the hanging basket; A feed channel, which is fixed to the top of the bracket and has one end close to the balance member, and is used for grid feeding. One end of the feed channel away from the balance member is connected to a flow line; A horizontal pushing component is arranged above the balancing member and is used for pushing the grid to move.

2. The battery grid weight detection device according to claim 1, characterized in that: The bracket includes two vertically arranged support arms and a crossbeam for connecting the two support arms, the crossbeam is located below the balance member, and the balance member is located between the two support arms.

3. The battery grid weight detection device according to claim 2, characterized in that: The balancing member includes a sub-screen plate, an L-shaped connecting arm and a rotating shaft. One end of the sub-screen plate and one end of the L-shaped connecting arm are fixed to the rotating shaft. Both ends of the rotating shaft are rotatably connected to the two support arms respectively. The rotating shaft and the L-shaped connecting arm and the support arm are vertically arranged, and the rotating shaft is parallel to the sub-screen plate.

4. The battery grid weight detection device according to claim 3, characterized in that: The feed channel comprises two sections of angle steels arranged parallel to each other, the ends of the two sections of the angle steels are respectively fixed to the tops of the two support arms, and a limiting strip parallel to the angle steels is provided on the upper part of the angle steels.

5. The battery grid weight detection device according to claim 3, characterized in that: The horizontal pushing assembly includes a linear module arranged above the balancing member, a first telescopic cylinder pointing vertically downward is arranged on the slide table of the linear module, a horizontally arranged connecting plate is fixed to the bottom end of the telescopic rod of the first telescopic cylinder, vertical push rods are fixed to both ends of the bottom surface of the connecting plate, and a makeshift slot for the push rod to pass through is opened on the sub-screen plate.

6. The battery grid weight detection device according to claim 3, characterized in that: An extension plate is hingedly connected to one end of the first conveyor belt, the second conveyor belt and the third conveyor belt close to the sub-screening plate.

7. The battery grid weight detection device according to claim 3, characterized in that: An angle sensor is arranged at one end of the rotating shaft.

8. The battery grid weight detection device according to claim 7, characterized in that: A positioning plate is fixed to one end of the rotating shaft away from the angle sensor, and the positioning plate is arranged parallel to the sub-screening plate. A mounting plate is arranged on the support arm corresponding to the positioning plate, and a clamping cylinder is arranged on the mounting plate. The positioning plate is located between the clamping jaws of the clamping jaw cylinder.

9. The battery grid weight detection device according to claim 8, characterized in that: The mounting plate is provided with a second telescopic cylinder for limiting the rotation of the rotating shaft, and the telescopic rod of the second telescopic cylinder is coaxially arranged with the rotating shaft.

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