Device and method for detecting slitting precision of polar plate

Abstract

The invention provides a device and a method for detecting the slitting precision of a polar plate. The device comprises a detection table top, the top surface of the detection table top is provided with a detection groove for placing a polar plate, a first side wall of the detection groove is convexly provided with a positioning angle, and during detection, one side of the positioning angle is abutted against the top surface of the polar plate for positioning, and the other side of the positioning angle is abutted against the side surface of a tab for positioning; a clamping mechanism used for being matched with the positioning angle to fix the to-be-detected polar plate is arranged on the side, opposite to the first side wall, in the detection groove. A first detection mechanism for detecting the position of at least one side edge in the width direction of the to-be-detected polar plate is arranged on one side, adjacent to the first side wall, in the detection groove; and a second detection mechanism for detecting the position of the top surface of the tab is arranged on one side of the first side wall of the detection groove. The device for detecting the slitting precision of the polar plate is simple in structure, and the polar plate to be detected can be accurately positioned and measured. The method for detecting the slitting precision of the polar plate is easy to operate, the measurement result is more accurate, and measurement is more convenient and faster.

Description

Technical Field

[0001] This invention belongs to the field of lead-acid battery technology, specifically relating to a device and method for detecting the cutting accuracy of electrode plates. Background Technology

[0002] In the production of lead-acid batteries, lead paste needs to be evenly applied to the grid and cured into plates. Since the grid is often processed by stamping, the entire roll of lead sheet is stamped to form the grid structure on the lead sheet. Because the grids are still bonded to each other after stamping, they need to be cut and separated by a slitting machine.

[0003] Patent CN205852271U discloses an automatic continuous plate slitting machine, including a frame, motor, mounting frame, slitting roller, active support roller, several cutters, several serrations, drive gear, driven gear, gearbox, first gear, second gear, conveyor belt, flattening mechanism, support plate, guide roller, two lower positioning bodies, two upper positioning bodies, and two pressing devices. The frame is equipped with a gearbox and mounting frame. The slitting roller and active support roller are mounted on the mounting frame. The slitting roller is located above the active support roller. The cutters form two sets of cutter groups on the slitting roller. Both ends of the slitting roller are equipped with upper positioning bodies. A driven gear is located on the shaft at one end of the slitting roller. The active support roller has serrations distributed in a circular pattern in the middle. The serrations are located between the two sets of cutter groups, enabling high slitting efficiency, high precision, and high yield.

[0004] Patent application CN212384702U discloses a continuous casting and rolling electrode plate slitting device, including a frame, servo motor, roller cutter wheel, lower roller, electrode plate conveyor belt, speed measuring wheel, rotary encoder, photoelectric sensor, and microcomputer. The speed measuring wheel is mounted on the frame in front of the roller cutter wheel via a rotating shaft, and the rotary encoder is mounted on the rotating shaft. The photoelectric sensor is mounted on the frame in front of the speed measuring wheel, and the microcomputer is mounted on the frame. This device has high slitting accuracy and can effectively reduce the electrode plate slitting scrap rate.

[0005] However, if the electrode plate deforms during the coating process, it will lead to electrode plate slitting deviation. For example, if the electrode plate is slitting at the connection between its edges, it will result in one side of the edge being narrower than the other. If it is too narrow, the edge ribs of the electrode plate will corrode and break later, affecting conductivity. If the electrode plate slitting deviation is unacceptable, the slitting machine positioning needs to be adjusted. If the deformation of the continuous coating grid is large, a new continuous coating grid needs to be replaced. Currently, quality inspection mainly involves randomly taking an electrode plate, removing the lead paste from it, and measuring the width of the edge with calipers. This results in electrode plate waste and is time-consuming and labor-intensive. Summary of the Invention

[0006] To address the aforementioned technical problems in the prior art, the present invention provides an apparatus and method for detecting the cutting accuracy of electrode plates.

[0007] This invention provides a device for detecting the cutting accuracy of an electrode plate. The electrode plate to be tested includes an electrode plate body and an electrode tab located on the top surface of the electrode plate body. The device includes a testing platform, the top surface of which is provided with a testing groove for placing the electrode plate. A positioning angle is protruding from the first sidewall of the testing groove. During testing, one side of the positioning angle abuts against the top surface of the electrode plate for positioning, and the other side abuts against the side of the electrode tab for positioning. A clamping mechanism is provided on the side of the testing groove opposite to the first sidewall for fixing the electrode plate to be tested in conjunction with the positioning angle. A first detection mechanism is provided on the side of the testing groove adjacent to the first sidewall for detecting the position of at least one side of the electrode plate in the width direction. A second detection mechanism is provided on one side of the first sidewall of the testing groove for detecting the position of the top surface of the electrode tab.

[0008] Furthermore, the first detection mechanism includes a first digital display ruler disposed on one side of the detection groove; the second detection mechanism includes a second digital display ruler disposed on one side of the first sidewall of the detection groove. The first digital display ruler is used to detect the frame width of the electrode plate to be tested, and the second digital display ruler is used to detect the tab height of the electrode plate to be tested. A digital display ruler is a digital measuring tool that measures length, width, and height using electronic sensors, and features intuitive readings, ease of use, and data storage capabilities.

[0009] Furthermore, the first detection structure includes two first digital display scales disposed on one side of the detection groove. The two first digital display scales are used to detect two different positions on one side of the electrode plate under test in the width direction. This allows for the measurement of the frame width at two different positions on the same side of the electrode plate under test, and then the average value is taken, resulting in a more accurate detection result.

[0010] Furthermore, the detection slot has an operation slot on the side opposite to the first digital display scale to facilitate the placement and removal of the electrode plate to be tested.

[0011] Furthermore, the clamping mechanism includes a clamping block and a pull rod for moving the clamping block. Limiting slots that mate with the sides of the clamping block are provided on both sides of the detection groove. A through hole that mates with the pull rod is also provided on the side of the detection groove opposite to the first sidewall. A return spring is provided on the section of the pull rod that passes through the through hole and extends into the detection groove. When the electrode plate to be tested is placed into the detection groove, the pull rod can be pulled outwards to create space in the detection groove. After the electrode plate to be tested is placed in, the pull rod is released, and the clamping block, under the action of the spring force, presses against the electrode plate to be tested, thus fixing the electrode plate to be tested in conjunction with the positioning angle.

[0012] Furthermore, the limiting slot does not exceed the location of the first detection mechanism, so as to prevent the limiting slot from hindering the detection process of the first detection mechanism.

[0013] Furthermore, the positioning angle is a rounded corner. Sharp corners are difficult to make absolutely sharp and perfect in actual production and measurement; setting the positioning angle as a rounded corner can avoid measurement errors caused by the uncertainty of the apex of the sharp corner.

[0014] The present invention also provides a method for detecting the cutting accuracy of electrode plates, using the above-described apparatus for detecting the cutting accuracy of electrode plates, the method comprising the following steps: S1, First, place the standard-sized zeroing plate into the detection slot and fix it, then calibrate and zero the first and second detection mechanisms; S2, the electrode plate to be tested is placed in the detection groove and fixed. The first detection mechanism is used to detect the position of one side of the electrode plate in the width direction to determine the cutting accuracy in the width direction. The second detection mechanism is used to detect the position of the top surface of the electrode plate tab to determine the cutting accuracy of the tab height.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The device for detecting electrode cutting accuracy provided by this invention has a simple structure and can accurately position and measure the electrode to be tested. The method for detecting electrode cutting accuracy provided by this invention is simple to operate. By using a zeroing electrode in conjunction with the device for detecting electrode cutting accuracy of this invention, the width of the edge of the electrode to be tested and the height of the tab can be measured. The measurement results are more accurate, and the measurement is more convenient and faster. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the electrode plate used for zeroing when it is fixed in a device for detecting the cutting accuracy of the electrode plate.

[0017] Figure 2 This is a schematic diagram of the structure of the electrode plate under test when it is fixed and measured in a device for detecting the cutting accuracy of the electrode plate.

[0018] Figure 3 for Figure 2 A cross-sectional view along the width of the clamping block.

[0019] Figure 4 for Figure 2 A sectional view along the width of the operating slot.

[0020] Figure label: Detection slot 1, positioning angle 2, clamping mechanism 3, clamping block 31, pull rod 32, limit slot 33, reset spring 34, first digital display scale 4, second digital display scale 5, operation slot 6, frame zeroing line 7, pole ear height zeroing line 8. Detailed Implementation

[0021] like Figures 1-4As shown, a device for detecting the cutting accuracy of electrode plates includes a detection table. The top surface of the detection table is provided with a detection groove 1 for placing the electrode plate. The first side wall of the detection groove 1 is provided with a positioning angle 2. The structure of the electrode plate to be tested includes an electrode plate body and an electrode tab located on the top surface of the electrode plate body. During detection, one side of the positioning angle 2 is positioned against the top surface of the electrode plate, and the other side is positioned against the side of the electrode tab.

[0022] In some feasible implementations, positioning angle 2 is set as a rounded corner. Because it is difficult to make a sharp corner absolutely sharp and perfect in actual production and measurement, setting positioning angle 2 as a rounded corner can avoid measurement errors caused by the uncertainty of the apex of the sharp corner.

[0023] The side of the detection groove 1 opposite to the first side wall is provided with a clamping mechanism 3 for fixing the electrode plate to be tested in conjunction with the positioning angle 2.

[0024] The clamping mechanism 3 includes a clamping block 31 and a pull rod 32 for moving the clamping block 31. Limiting slots 33 that cooperate with the sides of the clamping block 31 are provided on both sides of the detection groove 1. Slider blocks may be provided on both sides of the clamping block 31, allowing it to slide along the limiting slots 33. The limiting slots 33 do not exceed the position of the first detection mechanism to avoid obstructing the detection process of the first detection mechanism. The detection groove 1 also has a through hole on the side opposite to the first sidewall that cooperates with the pull rod 32. A return spring 34 is provided on the section of the pull rod 32 that passes through the through hole and extends into the detection groove 1.

[0025] When the electrode plate to be tested is placed into the test slot 1, the pull rod 32 can be pulled outward to leave space in the test slot 1. After the electrode plate to be tested is placed in, the pull rod 32 is released, and the clamping block presses against the electrode plate to be tested under the action of the spring force, which, together with the positioning angle 2, achieves the fixation of the electrode plate to be tested.

[0026] A first detection mechanism is provided on one side of the detection groove 1 adjacent to the first sidewall for detecting the position of at least one side of the electrode plate to be tested in the width direction. The first detection mechanism includes a first digital display scale 4 disposed on one side of the detection groove 1.

[0027] A second detection mechanism for detecting the position of the top surface of the electrode tab is provided on one side of the first sidewall of the detection tank 1. The second detection mechanism includes a second digital display scale 5 located on one side of the first sidewall of the detection tank 1.

[0028] The first digital ruler 4 is used to detect the frame width of the electrode plate to be measured, and the second digital ruler 5 is used to detect the tab height of the electrode plate to be measured. A digital ruler is a digital measuring tool that uses electronic sensors to measure length, width, and height. It features intuitive readings, ease of use, and data storage capabilities.

[0029] To reduce measurement errors, the first detection structure includes two first digital display rulers 4 located on one side of the detection groove 1. These two rulers 4 are used to detect two different positions on one side of the electrode plate under test in the width direction. This allows for the determination of the frame width at two different positions on the same side of the electrode plate, followed by averaging, resulting in a more accurate detection result.

[0030] The detection slot 1 has an operation slot 6 on one side relative to the first digital display scale 4, which facilitates the placement and removal of the electrode plate to be tested.

[0031] This embodiment also provides a method for detecting the cutting accuracy of electrode plates using the above-described device for detecting electrode plate cutting accuracy, comprising the following steps: S1, first place the standard-sized zeroing plate into the detection slot 1 and fix it, then calibrate and zero the first and second detection mechanisms; S2, the electrode plate to be tested is placed in the detection slot 1 and fixed. The first detection mechanism is used to detect the position of one side of the electrode plate in the width direction to determine the cutting accuracy in the width direction. The second detection mechanism is used to detect the position of the top surface of the electrode plate tab to determine the cutting accuracy of the tab height.

[0032] The more specific testing procedure is as follows: (1) Place the standard-sized zeroing electrode plate into the test slot 1, with one side of the positioning angle 2 abutting against the top surface of the electrode plate and the other side abutting against the side of the electrode ear, and fix it with the clamping mechanism 3. (2) Adjust the first digital display ruler 4 and the second digital display ruler 5 so that they are respectively against the zeroing line 7 of the frame of the zeroing plate and the zeroing line 8 of the height of the pole ear. Then zero the first digital display ruler 4 and the second digital display ruler 5. (3) Place the electrode plate to be tested into the test slot 1 and fix it in the same way; (4) Adjust the first digital display ruler 4 and the second digital display ruler 5 so that they are against the side of the electrode plate to be tested in the width direction and the top side of the electrode tab, respectively. At this time, the displayed values ​​of the first digital display ruler 4 and the second digital display ruler 5 are the width value of the frame on one side of the electrode plate to be tested and the height value of the electrode tab. The cutting accuracy of the electrode plate in the width direction and the height of the electrode tab can be determined by these values.

Claims

1. A device for detecting the cutting accuracy of an electrode plate, wherein the electrode plate to be tested comprises an electrode plate body and an electrode tab located on the top surface of the electrode plate body, characterized in that, The device includes a testing platform, the top surface of which is provided with a testing groove for placing an electrode plate. The first side wall of the testing groove is provided with a positioning angle. During testing, one side of the positioning angle is positioned against the top surface of the electrode plate, and the other side is positioned against the side of the electrode tab. The detection groove is provided with a clamping mechanism on the side opposite to the first sidewall for fixing the electrode plate to be tested in conjunction with the positioning angle; The detection groove is provided with a first detection mechanism on the side adjacent to the first sidewall for detecting at least one side position in the width direction of the electrode plate to be tested; A second detection mechanism for detecting the position of the top surface of the electrode tab is provided on one side of the first sidewall of the detection groove.

2. The device for detecting the cutting accuracy of electrode plates according to claim 1, characterized in that, The first detection mechanism includes a first digital display scale disposed on one side of the detection slot; The second detection mechanism includes a second digital display scale disposed on one side of the first sidewall of the detection groove.

3. The device for detecting the cutting accuracy of electrode plates according to claim 2, characterized in that, The first detection structure includes two first digital display scales disposed on one side of the detection groove. The two first digital display scales are used to detect two different positions on one side of the electrode plate to be tested in the width direction.

4. The apparatus for detecting the cutting accuracy of electrode plates according to claim 3, characterized in that, The detection slot has an operation slot on the side opposite to the first digital display scale to facilitate the placement and removal of the electrode plate to be tested.

5. The apparatus for detecting the cutting accuracy of electrode plates according to claim 1, characterized in that, The clamping mechanism includes a clamping block and a pull rod for moving the clamping block. The detection groove has limiting slots on both sides that cooperate with the sides of the clamping block. The detection groove also has a through hole on the side opposite to the first side wall that cooperates with the pull rod. The pull rod has a return spring on the section that passes through the through hole and extends into the detection groove.

6. The apparatus for detecting the cutting accuracy of electrode plates according to claim 5, characterized in that, The limiting slot does not exceed the location of the first testing mechanism.

7. The apparatus for detecting the cutting accuracy of electrode plates according to claim 1, characterized in that, The positioning angle is a rounded corner.

8. A method for detecting the cutting accuracy of electrode plates, characterized in that, The method using the apparatus for detecting electrode cutting accuracy according to any one of claims 1 to 7 comprises the following steps: S1, First, place the standard-sized zeroing plate into the detection slot and fix it, then calibrate and zero the first and second detection mechanisms; S2, the electrode plate to be tested is placed in the detection groove and fixed. The first detection mechanism is used to detect the position of one side of the electrode plate in the width direction to determine the cutting accuracy in the width direction. The second detection mechanism is used to detect the position of the top surface of the electrode plate tab to determine the cutting accuracy of the tab height.

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