A feeding cleaning device for tab belt

Abstract

This invention provides a feeding and cleaning device for electrode ear straps, including a frame; a limiting frame fixed to the frame for limiting the electrode ear straps; a clamping assembly symmetrically arranged on the side of the frame, including: two opposing horizontal plates; a positioning block disposed on the top of each horizontal plate; a clamping frame disposed on the horizontal plate for fixing a cleaning cloth; a positioning rod for connecting the clamping frame and the positioning block; and a buffer assembly disposed between the two horizontal plates to suppress vibration and displacement of the electrode ear straps. This invention provides a feeding and cleaning device that can stably clamp the electrode ear straps, adaptively adjust the cleaning force, and has vibration reduction function, thereby improving the cleaning effect and the conveying stability of the electrode ear straps.

Description

Technical Field

[0001] This utility model relates to a feeding and cleaning device for electrode ear straps. Background Technology

[0002] In the lithium battery manufacturing process, the tabs are a key component for battery connection, and their surface cleanliness directly affects the battery's conductivity and welding quality. Because the tabs are usually thin and made of soft material, they are prone to curling, folding, or jumping during transportation, leading to incomplete cleaning or affecting the accuracy of subsequent processing.

[0003] Currently, traditional electrode belt cleaning methods mainly employ fixed wiping structures. However, due to the lack of effective clamping and adjustment mechanisms, the following problems exist: Unstable cleaning effect: Ordinary wiping devices cannot adjust the clamping force according to the thickness or degree of contamination of the electrode belt, resulting in incomplete cleaning or excessive friction damage to the electrode belt surface; Electrode belt is prone to displacement or jumping: Electrode belts are prone to vibration or positional displacement during high-speed conveying, leading to uneven cleaning, and even deformation or breakage of the electrode belt; Poor adaptability: Existing devices are difficult to be compatible with electrode belts of different specifications and lack vibration damping structures, failing to effectively suppress electrode belt vibration and affecting processing accuracy. Therefore, there is an urgent need to design a feeding cleaning device that can stably clamp the electrode belt, adaptively adjust the cleaning force, and has vibration damping functions to improve the cleaning effect and the conveying stability of the electrode belt. Utility Model Content

[0004] This invention provides a feeding and cleaning device for electrode straps, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] A feed cleaning device for electrode straps, comprising:

[0007] frame;

[0008] A limiting bracket, fixed to the frame, is used to limit the position of the electrode ear strap;

[0009] A clamping assembly, symmetrically disposed on the side of the frame, includes:

[0010] Two horizontal plates arranged opposite each other; a positioning block located at the top of each horizontal plate;

[0011] A clamping frame is provided on the horizontal plate and is used to fix the cleaning cloth;

[0012] A positioning rod is used to connect the clamping frame and the positioning block;

[0013] A buffer assembly is disposed between the two cross plates to suppress the vibrational offset of the tab straps.

[0014] The beneficial effects of this utility model are:

[0015] (1) The synergistic effect of the frame and the limiting frame ensures that the tab strip maintains a precise conveying trajectory, effectively preventing deviation; the symmetrically arranged clamping components provide a stable support foundation for the cleaning cloth through the cooperation of two horizontal plates and positioning blocks; the specially designed clamping frame can firmly fix the cleaning cloth and ensure its optimal contact pressure with the tab strip; the ingenious connection structure of the positioning rod realizes the flexible adjustment of the clamping frame height to adapt to the cleaning needs of tab strips of different thicknesses; the unique arrangement of the buffer components effectively absorbs the vibration energy generated during the conveying of the tab strip, significantly suppressing the jumping and deviation of the tab strip. The synergistic effect of these technical features enables the device to not only achieve efficient cleaning of the tab strip, but also ensure the stability and consistency of the cleaning process, greatly improving the cleaning quality of the tab strip, while reducing the risk of tab strip damage caused by vibration, extending the service life of the cleaning cloth, and providing reliable process assurance for the production of lithium battery tabs. The device has a compact structure, is easy to adjust, and has significant practicality and innovation, which can meet the high standard requirements of modern lithium battery production lines for tab strip cleaning processes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is the front view of this utility model.

[0018] Figure 2 This is an exploded view of this utility model.

[0019] Figure 3 This is a utility model Figure 3 A magnified view of A in the middle.

[0020] Figure 4 This is a schematic diagram of the clamping assembly of this utility model.

[0021] Figure 5 This is a schematic diagram showing the cooperation between the positioning block and the positioning rod of this utility model.

[0022] Explanation of icon numbers:

[0023] 10. Rack; 20. Limiting bracket; 30. Pole tabs;

[0024] 40. Clamping assembly; 400. Horizontal plate; 402. Positioning block; 4020. Positioning groove; 404. Clamping frame; 4040. Clamping groove; 4042. Racket tooth; 406. Positioning rod; 4060. Groove; 4062. Elastic element; 4064. Positioning pin; 4066. Protrusion; 408. First side bracket; 4080. Pull rod; 4082. Movable groove; 410. Second side bracket; 4102. Connecting rod; 412. Preload cylinder; 4120. Screw; 4122. Nut; 4124. Preload spring;

[0025] 50. Limiting groove; 60. Cleaning cloth. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0027] In the description of this utility model, 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 number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Reference Figure 1-5 As shown, a feeding and cleaning device for electrode straps includes...

[0029] A frame 10; a limiting groove 50 is provided on the frame 10 to limit the electrode ear strap 30; a limiting frame 20 is fixed on the frame 10 to limit the electrode ear strap 30.

[0030] Specifically, the frame 10 is made of high-strength aluminum alloy in one piece, and its surface is anodized to form a wear-resistant layer. The limiting groove 50 adopts a dovetail groove structure design, and polyurethane anti-slip pads (not shown in the figure) are embedded in the groove. Through the unique corrugated friction surface, non-linear contact resistance is formed with the tab belt 30. This design breaks through the limitations of traditional straight grooves, so that the tab belt 30 generates micro-vibration during the conveying process, which helps the cleaning cloth 60 to remove surface impurities more thoroughly. The limiting frame 20 is connected to the frame 10 through a magnetorheological damper (not shown in the figure), and the damping coefficient can be adjusted in real time according to the tension of the tab belt 30.

[0031] The clamping assembly 40 is symmetrically arranged on the side of the frame 10 and includes: two opposing horizontal plates 400; a positioning block 402 disposed on the top of each horizontal plate 400; and a clamping frame 404 disposed on the horizontal plate 400 and used to fix the cleaning cloth 60.

[0032] A positioning rod 406 is used to connect the clamping frame 404 and the positioning block 402. A groove 4060 is formed on the positioning rod 406, an elastic element 4062 is disposed inside the groove 4060, a positioning pin 4064 is disposed on the elastic element 4062, and a protrusion 4066 is disposed on the top of the positioning pin 4064. A slot for engaging the positioning rod 406 is opened on the positioning block 402, and a positioning groove 4020 is formed in the slot. The positioning groove 4020 engages with the protrusion 4066, thereby fixing the clamping frame 404. A clamping groove 4040 is opened on the clamping frame 404, and several ratchet teeth 4042 are disposed on the clamping groove 4042.

[0033] A buffer assembly is disposed between two horizontal plates 400 to suppress the vibration offset of the tab belt 30. The buffer assembly includes a first side bracket 408 and a second side bracket 410, a pull rod 4080 disposed on the first side bracket 408, a movable groove 4082 formed at one end of the pull rod 4080, and a connecting rod 4102 disposed on the second side bracket 410. A pre-tightening cylinder 412 is disposed at one end of the first side bracket 408, a screw 4120 disposed in the pre-tightening cylinder 412, a nut 4122 disposed at one end of the screw 4120, and a pre-tightening spring 4124 disposed inside the pre-tightening cylinder 412 and in contact with the screw 4120.

[0034] Vibrational energy conversion pathway:

[0035] Vibration of the pole ear belt → Swing of the horizontal plate 400 → Deflection of the pull rod 4080 → Movement of the movable groove 4082 guiding the movement of the connecting rod 4102 → Energy storage / release of the preload spring 4124 → Energy dissipation due to thread friction of the screw 4120.

[0036] Technical drawbacks of traditional integral plywood:

[0037] The existing technology that uses a single integral clamp to fix the cleaning cloth has the following problems:

[0038] Uneven pressure distribution: When the entire clamping plate is clamped over a long span (>300mm), stress concentration is likely to occur in the middle part (the measured pressure difference can reach 2.5N / cm2);

[0039] Effects of thermal deformation: During continuous operation, the aluminum alloy plate will bulge in the middle due to thermal expansion (experiments show that the middle warps up by 0.8mm when the temperature rises by 40℃);

[0040] Low replacement efficiency: Replacing the cleaning cloth requires disassembling the entire clamp, which takes an average of 8-12 minutes.

[0041] Poor adaptability: Unable to implement differentiated cleaning pressure adjustment for different sections of the tab (e.g., end / middle);

[0042] The technical advantages of the separate clamping mechanism in this case:

[0043] (1) Dynamic pressure optimization:

[0044] The segmented clamping area is formed by two independent horizontal plates 400. The pressure of each clamping area can be adjusted independently. Actual test data shows that the pressure uniformity is improved by 60% (the maximum pressure difference is reduced to 1.0N / cm2). Typical application case: The end of the electrode strap is set with higher pressure (1.8N / cm2) to enhance cleaning, while the middle is kept at standard pressure (1.2N / cm2).

[0045] (2) Thermal deformation compensation: The split structure has a reserved thermal expansion gap of 0.5mm (the traditional structure is a rigid connection). Temperature test shows that at 60℃, the clamping flatness is maintained at ±0.1mm (the deformation of the traditional structure reaches ±0.7mm).

[0046] (3) Modular maintenance: Replacing a single 404 clamp only takes 2-3 minutes, improving efficiency by 75%. Supports "online hot replacement" mode (one side of the clamp can be removed without affecting the work of the other side).

[0047] Technical parameter comparison:

[0048] Performance indicators Traditional integral plywood This case involves a split structure. Increase Pressure uniformity ±25％ ±8％ 212％ Heat distortion (66℃) 6.7mm 6.1mm 666％ Fabric replacement time 16min 2.5min 366％ Energy consumption (compressed air) 6.8MPa 6.4MPa 166％

[0049] In summary, this project solves the problems of uneven pressure and cumbersome maintenance associated with traditional integral clamping plates through a separate elastic clamping system. It is particularly suitable for the high-precision cleaning requirements of ultra-thin tab strips (<0.1mm), providing a more reliable, efficient, and low-cost solution for lithium battery tab manufacturing processes. This design has been validated in mass production and demonstrates significant technological advancements and economic advantages.

[0050] Working principle:

[0051] The feeding cleaning device initially positions and restricts the electrode ear strap 30 through the limiting groove 50 and limiting frame 20 on the frame 10; the clamping assembly 40 supports the clamping frame 404 through symmetrically arranged horizontal plates 400 and positioning blocks 402, and the clamping groove 4040 and ratchet 4042 on the clamping frame 404 fix the cleaning cloth 60 to wipe the electrode ear strap 30; the positioning rod 406 pushes the positioning pin 4064 and the protrusion 4066 through the elastic element 4062 in the groove 4062, so that they are aligned with the positioning block 402. The positioning groove 4020 is elastically engaged to achieve height adjustment and stable fixation of the clamping frame 404; the buffer assembly provides adjustable damping through the linkage structure of the first side bracket 408 and the second side bracket 410, the pull rod 4080, the movable groove 4082 and the connecting rod 4102, as well as the screw 4120 and the pre-tension spring 4124 in the pre-tensioning cylinder 412, effectively absorbing the vibration of the electrode belt 30 during the conveying process, preventing deviation and jumping, and ensuring stable contact and uniform cleaning between the cleaning cloth 60 and the electrode belt 30.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding and cleaning device for electrode ear belts, characterized in that, include Rack (10); A limiting frame (20) is fixed on the frame (10) and is used to limit the polar ear strap (30); A clamping assembly (40) is symmetrically disposed on the side of the frame (10), comprising: Two horizontal plates (400) arranged opposite each other; a positioning block (402) disposed on the top of each of the horizontal plates (400); A clamping frame (404) is provided on the horizontal plate (400) and is used to fix the cleaning cloth (60); A positioning rod (406) is used to connect the clamping frame (404) and the positioning block (402); A buffer assembly is disposed between the two cross plates (400) to suppress the vibrational offset of the tab band (30).

2. The electrode tab cleaning device according to claim 1, characterized in that, The positioning rod (406) has a groove (4060), an elastic element (4062) is disposed inside the groove (4060), a positioning pin (4064) is disposed on the elastic element (4062), and a protrusion (4066) is disposed on the top of the positioning pin (4064).

3. The electrode tab feeding and cleaning device according to claim 2, characterized in that, The positioning block (402) has a slot for engaging the positioning rod (406), and a positioning groove (4020) is formed in the slot. The positioning groove (4020) engages with the protrusion (4066) to fix the clamping frame (404).

4. The electrode tab feeding and cleaning device according to claim 1, characterized in that, The clamping frame (404) has a clamping groove (4040) and a plurality of ratchet teeth (4042) provided on the clamping groove (4040).

5. The electrode tab feeding and cleaning device according to claim 1, characterized in that, The buffer assembly includes a first side bracket (408) and a second side bracket (410), a pull rod (4080) disposed on the first side bracket (408), a movable groove (4082) formed at one end of the pull rod (4080), and a connecting rod (4102) disposed on the second side bracket (410).

6. The electrode tab feeding and cleaning device according to claim 5, characterized in that, One end of the first side bracket (408) is provided with a preload cylinder (412), a screw (4120) is provided in the preload cylinder (412), a nut (4122) is provided at one end of the screw (4120), and a preload spring (4124) is provided inside the preload cylinder (412) and in contact with the screw (4120).

7. The electrode tab feeding and cleaning device according to claim 1, characterized in that, A limiting groove (50) is provided on the frame (10) to limit the tab strap (30).

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