Lithium battery pole piece and diaphragm rippled edge detection equipment

Abstract

The utility model provides lithium battery pole piece and diaphragm rippled edge detection equipment which comprises a base, a pole piece supporting table, a pole piece clamping block, a clamping driving part, a connecting roller and a detection assembly. The lithium battery pole piece and diaphragm waved edge detection device can conveniently detect waved edges of a lithium battery pole piece and a diaphragm, when the pole piece supporting tables at the two ends are matched with the pole piece clamping blocks for clamping and fixing, the connecting rollers can enable the long pole piece and the diaphragm to be kept in a stable state, detection of the detection assembly is facilitated, and the detection efficiency is improved. The pointer of the detection assembly facilitates the detection operation of the detection personnel, thereby improving the detection efficiency, improving the detection consistency and accuracy, and guaranteeing the reasonable and reliable detection of the wavy edges of the lithium battery pole piece and the diaphragm.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery detection, in particular to a detection device for wavy edges of lithium battery electrode plates and diaphragms. Background Art

[0002] Inside a lithium battery cell, it is generally made by winding or laminating positive and negative electrode plates and a diaphragm. The main processes are coating - drying - rolling - slitting - vacuum baking - winding (laminating). If there are problems with slurry properties, coating uniformity, drying process, rolling parameters, foil ductility, slitting tools, etc., the electrode plate is prone to wavy edges beyond the process range. The common wave amplitude of the wavy edges is 3 - 5 mm, and the wavelength reaches more than ten mm. In addition, the tension of the electrode plate and the diaphragm in the winding (laminating) process will also affect the wavy edge parameters.

[0003] Traditionally, there is no dedicated equipment for detecting the wavy edges of lithium battery electrode plates and diaphragms. Only by manually taking a one - meter - long material and clamping it with an acrylic plate, and then performing manual visual inspection or measurement with a ruler. This method has poor accuracy, a high misjudgment rate, and no stability, and the measurement consistency is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device dedicated to detecting the wavy edges of lithium battery electrode plates and diaphragms in view of the deficiencies in the above - mentioned background art, so as to improve the detection accuracy and stability, and at the same time improve the operation convenience.

[0005] To achieve the above - mentioned purpose, the utility model provides a detection device for wavy edges of lithium battery electrode plates and diaphragms, which includes a base, an electrode plate support table, an electrode plate clamping block, a clamping driving part, a connecting roller, and a detection component;

[0006] The electrode plate support table is arranged at both ends of the base. The electrode plate clamping blocks are arranged corresponding to the electrode plate support tables one by one, and the electrode plate clamping blocks are connected to the telescopic ends of the clamping driving parts;

[0007] The connecting rollers are arranged in the space between the two electrode plate support tables and are rotatably connected to the base. A plurality of connecting rollers are provided;

[0008] The detection component includes a pointer and a pointer support frame. The pointer is provided with two relatively distributed moving measurement blocks up and down. The moving measurement blocks can move up and down relative to the pointer to detect the wavy edges of the electrode plate and the diaphragm.

[0009] Further, the clamping driving part is a clamping cylinder.

[0010] Further, the clamping cylinders are arranged on both sides of each electrode plate support table. The same electrode plate clamping block is connected to the telescopic ends of the two clamping cylinders.

[0011] Further, the connecting rollers are symmetrically distributed with respect to the center line of the base.

[0012] Further, the connecting rollers are made of light aluminum alloy and have an anodic oxidation layer or a Teflon coating on the surface.

[0013] Further, the pointer is also provided with an adjustment knob for controlling the lifting of the moving measuring block.

[0014] Further, the pointer is provided with scales, and the distance between the two moving measuring blocks is displayed on the scales.

[0015] Further, the pointer support frame is connected to the base. The pointer is provided with a through hole, and the pointer support frame passes through the through hole of the pointer. A threaded hole is provided on one side of the through hole, and a locking knob is inserted into the threaded hole.

[0016] The above solution of the present utility model has the following beneficial effects:

[0017] The lithium battery pole piece and diaphragm wavy edge detection device provided by the present utility model can conveniently detect the wavy edges of the lithium battery pole piece and diaphragm. When clamped and fixed under the cooperation of the two end pole piece support platforms and the pole piece clamping blocks, the connecting rollers can keep the long-sized pole piece and diaphragm in a stable state, facilitating the detection by the detection component. The pointer of the detection component is convenient for the operator to perform the detection operation, thereby improving the detection efficiency, and improving the consistency and accuracy of the detection, ensuring the reasonable and reliable detection of the wavy edges of the lithium battery pole piece and diaphragm;

[0018] Other beneficial effects of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the pole piece clamping block, pole piece support platform, and clamping cylinder of the present utility model;

[0021] Figure 3 is a schematic diagram of the detection component of the present utility model.

[0022]

DESCRIPTION OF THE REFERENCE NUMERALS

[0023] 1 - Base; 2 - Pole piece support platform; 3 - Pole piece clamping block; 4 - Clamping cylinder; 5 - Connecting roller; 6 - Pole piece and diaphragm; 7 - Pointer; 8 - Pointer support frame; 9 - Moving measuring block; 10 - Adjustment knob; 11 - Locking knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] As Figure 1 shown, an embodiment of the present utility model provides a lithium battery electrode sheet and diaphragm wavy edge detection device, including a base 1, an electrode sheet support table 2, an electrode sheet clamping block 3, a clamping cylinder 4, a connecting roller 5 and a detection component. At the same time, as Figure 2 shown, the electrode sheet support table 2 is arranged at both ends of the base 1 and is used to support the ends of the electrode sheet and the diaphragm 6. The electrode sheet clamping block 3 is arranged directly above the electrode sheet support table 2, and the electrode sheet clamping block 3 is connected to the telescopic end of the clamping cylinder 4. When the electrode sheet clamping block 3 moves towards the electrode sheet support table 2 under the drive of the clamping cylinder 4, it can cooperate with the electrode sheet support table 2 to clamp the ends of the electrode sheet and the diaphragm 6.

[0028] The clamping cylinder 4 is also arranged on the base 1. As a preferred embodiment, in this embodiment, the clamping cylinder 4 is arranged on both sides of each electrode sheet support table 2, and the same electrode sheet clamping block 3 is driven by two clamping cylinders 4 to improve the clamping firmness.

[0029] In this embodiment, the connecting roller 5 is arranged in the space between two pole piece support platforms 2 and is rotatably connected to the base 1. Among them, a plurality of connecting rollers 5 are arranged so that the pole pieces and the diaphragm 6 can be installed and detected by winding around the plurality of connecting rollers 5 for longer pole pieces and diaphragm 6. Of course, the continuous detection of the pole pieces and the diaphragm 6 can also be carried out by this equipment, that is, the ends of the pole pieces and the diaphragm 6 enter the position where the connecting roller 5 is located from one of the pole piece support platforms 2 and are wound in sequence, and then extend to the outside from the other pole piece support platform 2. When detection is required, the clamping cylinder 4 drives the pole piece clamping block 3 to clamp downwards to clamp the pole pieces and the diaphragm 6, so that the pole pieces and the diaphragm 6 in the equipment are kept in a stable state, and then detection can be carried out through the detection component. After the detection is completed, the clamping cylinder 4 drives the pole piece clamping block 3 to move upwards to release the pole pieces and the diaphragm 6, and then the pole pieces and the diaphragm 6 can be moved by a conveying device or the like, so that the next part of the pole pieces and the diaphragm 6 moves to the position of the detection component, and the above detection process is restarted. Among them, the connecting roller 5 also ensures the smoothness of the pole pieces and the diaphragm 6 during the conveying process.

[0030] At the same time, as Figure 3 shown, the detection component includes a pointer 7 and a pointer support frame 8. Among them, the pointer 7 is provided with two upper and lower moving measurement blocks 9, and the moving measurement blocks 9 can move up and down relative to the pointer 7. At the same time, the pointer 7 is also provided with an adjustment knob 10 to control the lifting of the moving measurement blocks 9. Inside the pointer 7, a lead screw and nuts arranged in the opposite direction can be used to achieve the purpose of the two moving measurement blocks 9 opening or closing, and the rotation of the lead screw is driven by the adjustment knob 10. The distance between the two moving measurement blocks 9 can be displayed on the scale on the surface of the pointer 7, which is convenient for the detection personnel to view.

[0031] The pointer support frame 8 is arranged on the base 1 to support the pointer 7, and at the same time, the height position of the pointer 7 can be conveniently adjusted so that the pointer 7 is at an appropriate height position to detect the pole pieces and the diaphragm 6. Among them, through holes can be arranged on the pointer 7, the pointer support frame 8 passes through the through holes of the pointer 7, and a locking knob 11 with an external thread is inserted into a threaded hole on one side of the through hole, etc., so that the pointer 7 can be moved to any height position and locked to maintain.

[0032] It can be understood that to ensure the accuracy of the detection result, when the moving measurement block 9 is performing detection, the part of the pole pieces and the diaphragm 6 to be detected needs to be kept horizontal. Based on this, in this embodiment, the connecting rollers 5 adjacent to both sides of the pointer 7 are arranged at the same height position, so that the pole pieces and the diaphragm 6 between them, that is, the part of the pole pieces and the diaphragm 6 to be detected, can be kept horizontal. Among them, the circular runout accuracy of the connecting roller 5 needs to be ≤0.05 mm, the diameter of the connecting roller 5 is 50 mm to 130 mm, and it is used in combination with a high-speed bearing to ensure flexible rotation and no stuck roller.

[0033] As a preferred embodiment, in this embodiment, the connecting rollers 5 are symmetrically distributed on the base 1 with respect to the center line, which is more convenient for testers to install and disassemble, etc.

[0034] As a preferred embodiment, in this embodiment, the connecting rollers 5 are made of lightweight aluminum alloy, and the surface is subjected to anodic oxidation treatment or coated with Teflon, etc., so that the connecting rollers 5 are lighter, have high hardness and strong wear resistance.

[0035] In summary, by using the lithium battery electrode sheet and diaphragm wavy edge detection device provided in this embodiment, the wavy edges of the lithium battery electrode sheet and the diaphragm 6 can be conveniently detected. When clamped and fixed under the cooperation of the two end electrode sheet support platforms 2 and the electrode sheet clamping blocks 3, the connecting rollers 5 can keep the long-sized electrode sheet and the diaphragm 6 in a stable state, which is convenient for the detection assembly to perform detection. The pointer 7 of the detection assembly is convenient for testers to perform detection operations, thereby improving the detection efficiency, and improving the consistency and accuracy of the detection, ensuring the reasonable and reliable detection of the wavy edges of the lithium battery electrode sheet and the diaphragm 6.

[0036] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0037] The above embodiments only represent several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A lithium battery pole piece and diaphragm wave edge detection device, characterized in that: It includes a base, a pole piece support platform, a pole piece clamping block, a clamping drive unit, a connecting roller and a detection component; The pole piece support platform is arranged at both ends of the base, the pole piece clamping block is arranged in one-to-one correspondence with the pole piece support platform, and the pole piece clamping block is connected to the telescopic end of the clamping drive part; The connecting roller is arranged in the space between the two pole piece support platforms and is rotatably connected to the base, and a plurality of connecting rollers are arranged; The detection assembly includes a pointer and a pointer support frame. The pointer is provided with two upper and lower relatively distributed movable measuring blocks. The movable measuring blocks can be raised and lowered relative to the pointer to detect the wave edge of the pole piece and the diaphragm.

2. A lithium battery pole piece and diaphragm wave edge detection device according to claim 1, characterized in that: The clamping driving part is a clamping cylinder.

3. A lithium battery pole piece and diaphragm wave edge detection device according to claim 2, characterized in that: The clamping cylinders are arranged on both sides of each pole piece supporting platform, and the same pole piece clamping block is connected to the telescopic ends of the two clamping cylinders.

4. A lithium battery pole piece and diaphragm wave edge detection device according to claim 1, characterized in that: The connecting rollers are symmetrically distributed relative to the center line of the base.

5. A lithium battery pole piece and diaphragm wave edge detection device according to claim 1, characterized in that: The connecting roller is made of light aluminum alloy, and has an anodized layer or a Teflon coating on the surface.

6. A lithium battery pole piece and diaphragm wave edge detection device according to claim 1, characterized in that: The pointer is also provided with an adjusting knob, and the adjusting knob is used to control the lifting and lowering of the mobile measuring block.

7. A lithium battery pole piece and diaphragm wave edge detection device according to claim 6, characterized in that: The pointer is provided with a scale, and the distance between the two moving measuring blocks is displayed on the scale.

8. A lithium battery pole piece and diaphragm wave edge detection device according to claim 1, characterized in that: The pointer support frame is connected to the base, a through hole is provided on the pointer, the pointer support frame is inserted into the through hole of the pointer, a threaded hole is provided on one side of the through hole, and a locking knob is inserted into the threaded hole.

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