Storage battery green plate binding force detection equipment and method

Abstract

The invention belongs to the technical field of lead-acid storage batteries, and discloses storage battery green plate binding force detection equipment and method, and the storage battery green plate binding force detection equipment comprises a frame body; the lead paste and grid binding force detection mechanism comprises an air cylinder, a pressure shaft, a pressing tool, a detection supporting frame and a detection mold. The lead plaster cohesion detection mechanism comprises a vibration table, a vibrator and an electronic scale. According to the method, whether the binding force of the lead plaster of the unformed plate and the grid and the cohesion index of the lead plaster are qualified or not can be determined, and if the binding force and the cohesion index of the lead plaster are not qualified, whether the main reason for falling of the lead plaster of the unformed plate is the binding force of the lead plaster of the unformed plate and the grid or the cohesion index of the lead plaster can be further analyzed; then, grid structure design, paste mixing, curing and drying and other process optimization and improvement can be correspondingly carried out, and the quality of the storage battery unformed plate is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of lead-acid batteries, and more specifically, relates to a device and method for detecting the bonding force of green plates of a storage battery. Background Art

[0002] The bonding force between the green plate lead paste and the grid and the cohesive force within the lead paste (the bonding force between lead pastes) are two key quality indicators of green plates. Whether these indicators are qualified directly affects the quality of the storage battery. Due to differences in grid structures, paste mixing, curing and drying processes, etc., there are certain differences in the bonding force between the green plate lead paste and the grid and the cohesive force within the lead paste, which directly affects performance indicators such as the capacity, low temperature, and cycle life of the storage battery.

[0003] Currently, the methods for detecting the bonding force between the green plate lead paste and the grid and the cohesive force within the lead paste at home and abroad usually involve dropping the green plate from a certain height, and determining the comprehensive index of the bonding force between the lead paste and the grid and the cohesive force within the lead paste through the paste dropping rate of the green plate lead paste (the ratio of the weight of the shed lead paste to the weight of the original green plate).

[0004] Due to differences in different green plate types, grid structure designs, paste mixing, curing and drying processes, etc., the bonding force between the green plate lead paste and the grid and the cohesive force within the lead paste are different. When the bonding force between the green plate lead paste and the grid is greater than the cohesive force within the lead paste, the cohesive force within the lead paste is the main reason for the shedding of the green plate lead paste. On the contrary, when the bonding force between the green plate lead paste and the grid is less than the cohesive force within the lead paste, the bonding force between the lead paste and the grid is the main reason for the shedding of the green plate lead paste.

[0005] However, the current method for detecting the paste dropping rate of green plate lead paste cannot accurately determine the main reason for the shedding of the lead paste, and thus cannot correspondingly optimize and improve processes such as grid structure design, paste mixing, curing and drying. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a device and method for detecting the bonding force of green plates of a storage battery in view of the drawbacks of the existing technology. This device and method can detect the bonding force of green plates from two aspects: the bonding force between the lead paste and the grid and the cohesive force within the lead paste. By obtaining the detection value of the bonding force between the grid and the lead paste of the green plate and the detection value of the cohesive force within the lead paste, the advantages and disadvantages of the bonding force index of the green plate can be accurately analyzed, and corresponding optimizations and improvements can be made to processes such as grid structure design, paste mixing, curing and drying, further improving the quality of the green plates of the storage battery.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A device for detecting the bonding force of green plates of a storage battery, comprising:

[0009] A frame;

[0010] The lead paste and grid bonding force detection mechanism includes a cylinder, a pressure shaft, a downward pressing tooling, a detection support frame, and a detection mold. The cylinder is installed at the top of the frame body. The pressure shaft is connected to the piston rod extending downward in the cylinder. The lower end of the pressure shaft is connected with the downward pressing tooling. The detection support frame is installed in the frame body and is located below the downward pressing tooling. The detection mold is placed on the detection support frame, and the green plate is placed on the detection mold adapted to its shape. A pressure gauge for measuring the downward pressing pressure value is installed on the cylinder.

[0011] The lead paste cohesive force detection mechanism includes a vibration table, a vibrator, and an electronic scale. The vibration table includes a horizontally arranged frame base at the upper part and a feeding bin connected below the frame base. The frame base is installed in the frame body and is located below the detection support frame. A buffer structure is connected between the outer corners of the frame base and the corresponding vertical rods in the frame body. A mesh sieve surface is installed in the middle of the frame base. The vibrator is installed on the outer wall of the feeding bin. A lead paste collection port is provided at the bottom of the feeding bin. The electronic scale is installed in the frame body and is located directly below the lead paste collection port.

[0012] Preferably, the downward pressing tooling includes a downward pressing tooling bracket and downward pressing probes. The downward pressing tooling bracket is connected to the lower end of the pressure shaft. A plurality of the downward pressing probes are vertically installed on the bottom surface of the downward pressing tooling bracket and respectively align with the grid meshes on the lower green plate one by one.

[0013] Preferably, the downward pressing probe is integrally in a three-dimensional rhombus shape. The lower end surface of the downward pressing probe has the same shape as the grid mesh of the green plate, and there is a gap between the four sides of the lower end surface of the downward pressing probe and the internal ribs forming the grid mesh of the green plate.

[0014] Preferably, the outer side of the detection support frame is fixedly connected to the corresponding vertical rod in the frame body. The upper surface of the detection support frame is provided with a positioning groove capable of fitting and placing the detection mold. The positioning groove has an intermediate opening. The detection mold includes a green plate detection area in the middle and a non-detection area on the periphery. The shape of the green plate detection area corresponds to the shape of the intermediate opening on the positioning groove. The green plate detection area is provided with a green plate detection area grid mesh and green plate detection area ribs corresponding to the grid mesh and internal ribs on the green plate.

[0015] Preferably, two horizontal and vertical support bars arranged in a cross shape are provided in the intermediate opening of the positioning groove to support the green plate detection area on the detection mold.

[0016] Preferably, the middle mesh sieve surface is concave with respect to the upper plane of the frame base. Three sides of the frame base are provided with raised ribs, and a limiting groove coaxial or parallel to the central axis of the raised rib is formed on the side of the raised rib facing the mesh sieve surface. The lead paste cohesive force detection mechanism further includes a sealing cover plate, which includes a cover plate main body and cover plate handle frames connected to both sides of the cover plate main body. The sealing cover plate horizontally extends into the frame base from the side without the raised ribs, and the cover plate main body and the cover plate handle frames can be respectively and adaptively clamped into the limiting grooves of the corresponding side of the raised ribs, and the outer peripheral bottom surface of the cover plate main body presses against the upper surface of the lower frame base.

[0017] Preferably, the bottom surface of the cover plate main body on the sealing cover plate needs to ensure that it does not contact the vibrating lead paste.

[0018] Preferably, the buffer structure is a spring with a circular cross-section. Concave arc-shaped grooves are formed at the outer corners of the frame base, and the spring is adaptively embedded in the arc-shaped grooves, and the upper and lower ends of the spring are respectively fixedly connected to the frame base and the frame body.

[0019] Preferably, an amplitude setter is also installed on the vibrator.

[0020] The present invention also discloses a detection method for a detection device of the binding force of a battery raw plate grid, including the following steps:

[0021] S1. Test on the binding force between the lead paste and the grid: Place the detection mold on the detection support frame, and place the raw plate to be tested on the detection mold; start the air cylinder to push the pressure shaft, and at the same time drive the lower pressing tooling to press down the raw plate. After the pressure shaft completes its preset stroke, the lead paste detaches from the raw plate and the grid on the detection mold and falls onto the mesh sieve surface of the vibrating table in the lead paste cohesive force detection mechanism, waiting for the detection of the lead paste cohesive force; the highest pressure value that appears during the process of the lower pressing tooling pressing down the raw plate is displayed on the pressure gauge, and this highest pressure value is defined as the detection value of the binding force between the raw plate lead paste and the grid.

[0022] S2. Before testing the binding force between the lead paste and the grid, first measure the weight of the raw plate to be tested and set it as A 1 , and measure the weight of the raw plate again after the test on the binding force between the lead paste and the grid and set it as A 2 , the weight of the fallen lead paste is displayed as A 3 on the lower electronic scale, then the weight A 4 of the raw plate lead paste collected on the vibrating table 1 = A 2 - A 3 ;

[0023] S3. Cohesion Test of Lead Paste: Turn on the vibrator. Under the conditions of preset vibration frequency and vibration time, the large lead paste gradually disperses to form small lead paste particles. The small lead paste particles pass through the sieve surface on the vibration table and are centrally collected through the lead paste collection port under the vibration table, and finally fall into the electronic scale. The weight of the lead paste shown on the battery scale at this time is A 5 , then the weight A of the lead paste passing through the sieve surface under vibration 6 = A 5 - A 3 , and let A 6 and A 4 The ratio value is defined as the cohesion detection value of the lead paste.

[0024] Compared with the prior art, the battery green plate binding force detection device and method of the present invention can determine whether the binding force detection value of the green plate lead paste and the grid and the cohesion detection value of the lead paste meet the requirements of the green plate binding force by obtaining the binding force detection value of the green plate lead paste to be tested and the grid and the cohesion detection value of the lead paste, and then comparing them with the corresponding process range requirements of the binding force between the green plate lead paste and the grid and the cohesion of the lead paste. The present invention can further analyze whether the main reason for the shedding of the green plate lead paste is the binding force between the green plate lead paste and the grid or the cohesion of the lead paste, and then corresponding process optimizations and improvements such as grid structure design, paste mixing, and curing and drying can be carried out to further improve the quality of the battery green plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0026] Figure 1 This is the front view of the overall structure of a battery green plate binding force detection device of the present invention.

[0027] Figure 2 This is the side view of the overall structure of a battery green plate binding force detection device of the present invention.

[0028] Figure 3 This is the axonometric view of the overall structure of a battery green plate binding force detection device (excluding the downward pressing tooling) of the present invention.

[0029] Figure 4 This is the structural schematic diagram of the downward pressing tooling in the binding force detection mechanism between the lead paste and the grid of the present invention.

[0030] Figure 5 This is the structural schematic diagram of the detection support frame in the binding force detection mechanism between the lead paste and the grid of the present invention.

[0031] Figure 6 This is a schematic structural diagram of a detection mold in the lead paste and grid bonding force detection mechanism of the present invention.

[0032] Figure 7 This is a structural diagram of a green plate.

[0033] Figure 8 This is a schematic structural diagram of a vibrating table in the lead paste cohesive force detection mechanism of the present invention.

[0034] Figure 9 This is a schematic structural diagram of a frame base in the vibrating table of the present invention.

[0035] Figure 10 This is a schematic structural diagram of a sealing cover plate in the lead paste cohesive force detection mechanism of the present invention.

[0036] In the figure: 1 - green plate, 2 - frame body, 3 - cylinder, 4 - pressure shaft, 5 - downward pressing tooling, 6 - detection support frame, 7 - detection mold, 8 - pressure gauge, 9 - vibrating table, 10 - vibrator, 11 - electronic scale, 12 - frame base, 13 - feeding bin, 14 - buffer structure, 15 - mesh sieve surface, 16 - lead paste collection port, 17 - downward pressing tooling support, 18 - downward pressing probe, 19 - vertical rod, 20 - positioning groove, 21 - middle opening, 22 - green plate detection area, 23 - non - detection area, 24 - grid grid in the green plate detection area, 25 - rib in the green plate detection area, 26 - support bar, 27 - sealing cover plate, 28 - protruding rib, 29 - limiting groove, 30 - cover plate main body, 31 - cover plate handle frame, 32 - amplitude setter. Detailed Embodiment

[0037] The following details the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0040] Embodiment:

[0041] Referring to Figures 1 to 10 , the present invention provides a detecting device for the bonding force of the green plates of a storage battery, which includes a bonding force detecting mechanism for the paste and the grid, a cohesive force detecting mechanism for the paste, and a frame 2 for mounting and supporting these two mechanisms.

[0042] Specifically, the frame 2 is the overall support structure of the device. As Figures 1 - 3 shown, it includes a frame for the bonding force detecting part of the paste and the grid and a frame for the cohesive force detecting part of the paste.

[0043] The bonding force detecting mechanism for the paste and the grid includes a cylinder 3, a pressure shaft 4, a downward pressing tooling 5, a detecting support frame 6, and a detecting mold 7. The cylinder 3 is installed at the top of the frame 2. The pressure shaft 4 is connected to the piston rod extending downward in the cylinder 3. The lower end of the pressure shaft 4 is connected with the downward pressing tooling 5. The detecting support frame 6 is installed in the frame 2 and is located below the downward pressing tooling 5. The detecting mold 7 is placed on the detecting support frame 6. Figure 7 The green plate 1 shown in

[0044] is placed on the detecting mold 7 adapted to its shape; a pressure gauge 8 for measuring and displaying the downward pressing pressure value is installed on the cylinder 3.

[0045] The downward pressing tooling 5 presses the green plate 1 under the push of the pressure shaft 4 to detect the bonding force between the grid and the paste. In a further specific embodiment, as Figure 4 shown, the downward pressing tooling 5 specifically includes a downward pressing tooling support 17 and downward pressing probes 18. The downward pressing tooling support 17 is connected to the lower end of the pressure shaft 4. A plurality of downward pressing probes 18 are vertically installed on the bottom surface of the downward pressing tooling support 17 and respectively align with the grid meshes on the lower green plate 1 one by one.

[0046] Furthermore, the downward pressing probe 18 is integrally in a three-dimensional rhombus shape. The lower end surface (the surface combined with the raw plate) of the downward pressing probe 18 has the same shape as the grid of the raw plate grid, and there is a gap (generally 0.02 mm) between the four sides of the lower end surface of the downward pressing probe and the internal ribs forming the raw plate grid, so as to ensure that when detecting the bonding force between the raw plate paste and the grid, the downward pressing probe 18 will not press down on the grid ribs of the raw plate 1, affecting the detection accuracy. At the same time, it can also ensure that the reason for the paste to fall off the raw plate 1 is that the paste detaches from the grid, rather than the paste falling off caused by the fracture of the paste inside the raw plate grid.

[0047] In a further specific embodiment, as Figure 2 、 5 shown in 6, the outer side of the detection support frame 6 is fixedly connected to the corresponding vertical rod 19 in the frame body 2. The upper surface of the detection support frame 6 is provided with a positioning groove 20 capable of fitting and placing the detection mold 7. The positioning groove 20 is provided with a middle opening 21. The positioning groove 20 is used to position the detection mold 7 and the raw plate 1 so that their positions are aligned. The detection mold 7 includes a raw plate detection area 22 in the middle and a non-detection area 23 on the periphery; the shape of the raw plate detection area 22 corresponds to the shape of the middle opening 21 on the positioning groove 20. The raw plate detection area 22 is provided with a raw plate detection area grid 24 and raw plate detection area ribs 25 corresponding to the grid and internal ribs on the raw plate 1.

[0048] Furthermore, there are two horizontal and vertical support bars 26 arranged in a cross shape in the middle opening 21 of the positioning groove 20 to support the raw plate detection area 22 on the detection mold 7, preventing the detection mold 7 from deforming in this area during the detection of the bonding force between the raw plate paste and the grid, and affecting the detection accuracy.

[0049] When detecting the bonding force between the paste and the grid, the air cylinder 3 in the bonding force detection mechanism between the paste and the grid is opened. The air cylinder 3 pushes the pressure shaft 4 and simultaneously drives the downward pressing tooling 5. The downward pressing probe 18 presses down on the raw plate 1 to detect the bonding force between the raw plate paste and the grid, and the pressure gauge 8 is used to display the detection value of the bonding force between the raw plate paste and the grid.

[0050] In a further specific embodiment, as Figure 8 、 9As shown in Figures 10, the middle mesh sieve surface 15 is recessed below the upper plane of the frame base 12 (generally, the mesh sieve surface is recessed from the frame base plane by a distance of 4 - 5 cm). Three sides of the frame base 12 are provided with raised ribs 28, and a limiting groove 29 coaxial or parallel to the central axis of the raised rib is formed on the side of the raised rib 28 facing the mesh sieve surface 15; the lead paste cohesive force detection mechanism further includes a sealing cover plate 27, which includes a cover plate main body 30 and cover plate handle frames 31 connected to both sides of the cover plate main body 30. The sealing cover plate 27 horizontally extends into the frame base 12 from the side without the raised ribs 28, and the cover plate main body 30 and the cover plate handle frames 31 can respectively fit into the limiting grooves 29 of the corresponding side raised ribs 28 to limit the cover plate main body 30 to firmly clamp on the frame base 12 and make the outer peripheral bottom surface of the cover plate main body 30 press against the upper surface of the lower frame base 12.

[0051] After the detection of the bonding force between the lead paste and the grid is completed, the shed lead paste is collected on the middle recessed mesh sieve surface 15 of the frame base 12, and then the sealing cover plate 27 is inserted and pushed in from the side of the frame base 12 without the raised ribs 28. The outer peripheral bottom surface of the cover plate main body 30 on the sealing cover plate 27 presses against the upper surface of the lower frame base 12, and the shed lead paste can be sealed in the space formed by the cover plate main body 30 and the lower mesh sieve surface 15, waiting for the detection of the cohesive force of the lead paste.

[0052] The bottom surface of the cover plate main body 30 on the sealing cover plate 27 needs to ensure non-contact with the vibrating lead paste to prevent the lead paste from adhering to the cover plate main body 30 and affecting the final detection result.

[0053] The buffer structure 14 is preferably a spring with a circular cross-section. Concave arc-shaped grooves are formed at the outer corners of the frame base 12, and the spring is adaptively embedded in the arc-shaped grooves, and the upper and lower ends of the spring are respectively fixedly connected to the frame base 12 and the frame body 2 to play a role in buffering vibration. At the same time, an amplitude setter 32 is also installed on the vibrator 10.

[0054] Turn on the vibrator 10, adjust the process parameters of the vibration frequency and vibration time of the amplitude setter 32, and start the vibration table 9 to detect the cohesive force of the lead paste. Under certain vibration frequency and vibration time conditions, the large lead paste gradually disperses to form lead paste small particles. The lead paste small particles pass through the mesh sieve surface 15 on the vibration table 9, are centrally collected through the lead paste collection port 16 below the vibration table 9, and finally fall into the electronic scale 11, and the electronic scale weighs to obtain the weight of the lead paste passing through the mesh sieve surface.

[0055] The detection method of a detection device for the bonding force of a storage battery raw plate in the present invention includes the following steps:

[0056] S1. Test on the bonding force between the lead paste and the grid: Place the detection mold on the detection support frame, and place the green plate to be tested on the detection mold; Start the air cylinder to push the pressure shaft, and at the same time drive the downward pressing tooling to press down the green plate. After the pressure shaft completes its preset stroke, the lead paste detaches from the green plate and the grid on the detection mold, and falls onto the mesh sieve surface of the vibrating table in the lead paste cohesive force detection mechanism, waiting for the detection of the cohesive force of the lead paste; The highest pressure value that appears during the process of the downward pressing tooling pressing down the green plate is displayed on the pressure gauge, and this highest pressure value is defined as the detection value of the bonding force between the lead paste and the grid of the green plate;

[0057] S2. Before conducting the test on the bonding force between the lead paste and the grid, first measure the weight of the green plate to be tested and set it as A 1 , and measure the weight of the green plate again after the test on the bonding force between the lead paste and the grid is completed and set it as A 2 , the weight of the lead paste that has fallen is displayed as A on the lower electronic scale 3 , then the weight of the lead paste of the green plate collected on the vibrating table is A 4 = A 1 - A 2 - A 3 ;

[0058] S3. Test on the cohesive force of the lead paste: Turn on the vibrator. Under the conditions of the preset vibration frequency and vibration time (usually 5 minutes), the large pieces of lead paste gradually disperse to form small lead paste particles. The small lead paste particles pass through the mesh sieve surface on the vibrating table and are centrally collected through the lead paste collection port below the vibrating table, and finally fall into the electronic scale. The weight of the lead paste displayed on the battery scale at this time is A 5 , then the weight of the lead paste passing through the mesh sieve surface under vibration is A 6 = A 5 - A 3 , and the ratio value of A 6 and A 4 is defined as the detection value of the cohesive force of the lead paste.

[0059] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery green plate bonding force detection device, characterized in that: include: Frame; A lead paste and grid bonding force detection mechanism comprises a cylinder, a pressure shaft, a pressing tool, a detection support frame and a detection mold, wherein the cylinder is installed on the top of the frame, the pressure shaft is connected to a piston rod extending downward in the cylinder, and the lower end of the pressure shaft is connected to the pressing tool; the detection support frame is installed in the frame and is located below the pressing tool, the detection mold is placed on the detection support frame, and the green plate is placed on the detection mold that matches its shape; a pressure gauge for measuring the pressing pressure value is installed on the cylinder; A lead paste cohesion detection mechanism includes a vibration table, a vibrator, and an electronic scale. The vibration table includes a frame with a horizontal upper portion and a feeding bin connected to the bottom of the frame. The frame is installed in the frame body and is located below the detection support frame. A buffer structure is connected between the outer corner of the frame and the corresponding vertical rod in the frame body. A mesh screen surface is installed in the middle of the frame. The vibrator is installed on the outer wall of the feeding bin. A lead paste collecting port is provided at the bottom of the feeding bin. The electronic scale is installed in the frame body and is located directly below the lead paste collecting port.

2. A battery green plate bonding force detection device according to claim 1, characterized in that: The pressing tooling includes a pressing tooling bracket and a pressing probe. The pressing tooling bracket is connected to the lower end of the pressure shaft. A plurality of pressing probes are vertically installed on the bottom surface of the pressing tooling bracket and are respectively aligned with the grid on the lower raw electrode plate.

3. A battery green plate bonding force detection device according to claim 2, characterized in that: The pressing probe is in the shape of a three-dimensional prism as a whole, the lower end surface of the pressing probe is the same shape as the raw plate grid, and there is a gap between the four sides of the lower end surface of the pressing probe and the internal ribs forming the raw plate grid.

4. The battery green plate bonding force detection device according to claim 1, characterized in that: The outer side of the detection support frame is fixedly connected to the corresponding vertical rod in the frame body, and the upper surface of the detection support frame is provided with a positioning groove that can be adapted to place the detection mold, and the positioning groove is provided with a middle opening; the detection mold includes a raw plate detection area located in the middle and a non-detection area located on the periphery; the shape of the raw plate detection area corresponds to the shape of the middle opening on the positioning groove, and the raw plate detection area is provided with a raw plate detection area grid and raw plate detection area ribs corresponding to the grid and internal ribs on the raw plate.

5. A battery green plate bonding force detection device according to claim 4, characterized in that: Two horizontal and vertical support bars arranged in a cross shape are provided in the middle opening of the positioning groove to support the green plate detection area on the detection mold.

6. The battery green plate bonding force detection device according to claim 1, characterized in that: The mesh screen surface located in the middle is recessed in the upper plane of the frame, and three sides of the frame are provided with raised ridges, and the side of the raised ridge facing the mesh screen surface is provided with a limiting groove coaxial or parallel to the central axis of the raised ridge; the lead paste cohesion detection mechanism also includes a sealing cover plate, and the sealing cover plate includes a cover plate body and a cover plate handle frame connected to both sides of the cover plate body, and the sealing cover plate extends horizontally into the frame from the side where the raised ridge is not provided, and the cover plate body and the cover plate handle frame can each be adapted to be inserted into the limiting groove of the raised ridge on the corresponding side, and the outer peripheral bottom surface of the cover plate body is pressed against the upper surface of the frame below.

7. A battery green plate bonding force detection device according to claim 6, characterized in that: The bottom surface of the cover plate body on the sealing cover plate must be ensured not to contact the vibrating lead paste.

8. The battery green plate bonding force detection device according to claim 1, characterized in that: The buffer structure is a spring with a circular cross-section. An inwardly concave arc groove is provided at the outer corner of the frame seat. The spring is adapted to be embedded in the arc groove, and the upper and lower ends of the spring are respectively fixedly connected to the frame seat and the frame body.

9. The battery green plate bonding force detection device according to claim 1, characterized in that: An amplitude setter is also installed on the vibrator.

10. A method for detecting the bonding force of a battery green plate, characterized in that: The following steps are involved: S1. Test of the bonding strength between lead paste and plate grid: Place the test mold on the test support frame, and place the green plate to be tested on the test mold; start the cylinder to push the pressure shaft, and at the same time drive the pressing tool to press down the green plate. After the pressure shaft completes its preset stroke, the lead paste is separated from the green plate and the grid on the test mold, and falls onto the mesh screen surface of the vibration table in the lead paste cohesion test mechanism, waiting for the lead paste cohesion test; the pressure gauge displays the highest pressure value that occurs during the process of the pressing tool pressing down the green plate, and the highest pressure value is defined as the test value of the bonding strength between the green plate lead paste and the plate grid; S2. Before the lead paste and grid bonding test, first measure the weight of the green plate to be tested and set it as A1. After the lead paste and grid bonding test is completed, measure the weight of the green plate again and set it as A2. The weight of the lead paste dropped on the electronic scale below is A3. Then the weight of the green plate lead paste collected on the vibration table is A4 = A1-A2-A3. S3. Lead paste cohesion test: Turn on the vibrator. Under the preset vibration frequency and vibration time conditions, large pieces of lead paste gradually disperse to form small particles. The small particles pass through the mesh screen on the vibration table, are collected by the lead paste collection port below the vibration table, and finally fall into the electronic scale. The lead paste weight displayed on the battery scale at this time is A5. The weight of the lead paste passing through the mesh screen under vibration is A6=A5-A3. The ratio of A6 to A4 is defined as the lead paste cohesion test value.

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