Tab centering device

Abstract

The utility model discloses a kind of tab middle-placed devices, comprising: conveying mechanism, for supporting and conveying tab;Scrape suction mechanism, for scraping and sucking slurry on tab surface, including second support, several scrape suction components and negative pressure component, the scrape suction component includes scraping head and the second driving part for driving the scraping head moves up and down;Liquid supply mechanism, for providing diluent to the scraping head and diluting scraped slurry, including diluent box, pump group and several liquid supply pipes, the pump group is pumped into several scraping head in the diluent box in several liquid supply pipes by diluent;Waste liquid recovery mechanism, for recycling diluted mixed waste liquid, including buffer tank and several recovery pipes, the negative pressure component is connected on the buffer tank by negative pressure pipe, several scraping head is connected buffer tank by several recovery pipes respectively.The utility model can greatly reduce the manufacturing cost of equipment, energy consumption cost and subsequent maintenance cost, and, metal dust generated when laser cutting can also avoid damage to human body.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, specifically to a device for placing the electrode tab in the middle. Background Technology

[0002] Against the backdrop of continuous advancements in battery technology, market demands for battery performance are becoming increasingly stringent, particularly for faster charging speeds and smaller battery sizes. In response to this trend, multi-tab technology has emerged and is gradually becoming a focus of industry attention. Multi-tab centering refers to the placement of multiple tab slots at intervals along the length of the electrode, with the tabs fixed in these slots by welding or embedding. Because multi-tab centering positions the tabs at the center of the electrode, it significantly shortens the current conduction path, substantially reducing the battery's internal resistance and effectively improving its rate performance, ensuring good performance even under high-current charging and discharging.

[0003] In the current production of multi-tab electrode plates, the tab slots are typically cut into the electrode plates using a laser cutting machine. However, existing laser cutting machines exhibit several drawbacks during the cutting process. Firstly, the cutting process generates metallic dust, which can easily damage the respiratory tract of operators, threatening their health. Secondly, laser cutting consumes a large amount of energy, increasing production costs. Thirdly, laser cutting equipment requires a substantial investment, has a complex structure, and incurs relatively high maintenance costs. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a center-positioned electrode device that can simultaneously realize the center-positioning process of multiple electrodes. Compared with the conventional laser cutting process, it can significantly reduce the manufacturing cost, energy consumption cost and subsequent maintenance cost of the equipment. Moreover, it can also avoid the damage to the human body caused by the metal dust generated during laser cutting.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A tab placement device, comprising:

[0007] A conveying mechanism for supporting and conveying electrode sheets includes a first support, a coating back roller and a guide roller rotatably connected to the first support, and a first driving member for driving the coating back roller to rotate. The electrode sheets are wound around the roller surfaces of the coating back roller and the guide roller.

[0008] A scraping and suction mechanism for scraping up and sucking away slurry from the surface of the electrode to form a mixed waste liquid includes a second support, a plurality of scraping and suction assemblies disposed on the second support, and a negative pressure assembly connecting the plurality of scraping and suction assemblies. The second support is disposed on the first support, and the plurality of scraping and suction assemblies are located above the coating back roller. Each scraping and suction assembly includes a first mounting plate, a scraping and suction head movably connected to the first mounting plate, and a second driving member for driving the scraping and suction head to move up and down. The scraping and suction head has an inner cavity, and the negative pressure assembly is used to provide negative pressure to the plurality of scraping and suction heads.

[0009] A liquid supply mechanism is used to provide diluent to the scraper head and dilute the scraped slurry. It includes a diluent box, a pump set and several supply pipes. Several scraper heads are respectively connected to the diluent box through several supply pipes. The pump set pumps the diluent in the diluent box to several scraper heads through several supply pipes.

[0010] A waste liquid recovery mechanism for recovering diluted mixed waste liquid includes a buffer tank and several recovery pipes. The negative pressure component is connected to the buffer tank through a negative pressure pipe, and several scraper heads are respectively connected to the buffer tank through several recovery pipes.

[0011] As a further improvement to the above technical solution, the scraper head includes a blade holder, a scraper, and a pressure cap. The blade holder has a first groove for accommodating the scraper. The pressure cap is used to press the scraper onto the blade holder. A feeding channel is provided between the scraper and the blade holder. The feeding channel has a slit-shaped cross-section. A first liquid inlet channel is provided inside the pressure cap. A liquid outlet channel is provided inside the blade holder. The feeding channel is connected to both the first liquid inlet channel and the liquid outlet channel. A liquid supply pipe is connected to the pressure cap and communicates with the first liquid inlet channel. A recovery pipe is connected to the blade holder and communicates with the liquid outlet channel.

[0012] As a further improvement to the above technical solution, a second groove is provided on one side of the cap, a cover plate is installed in the second groove, a second liquid inlet channel is formed between the cover plate and the second groove, the second liquid inlet channel is connected to the first liquid inlet channel and the feed channel respectively, and the cross-section of the second liquid inlet channel is slit-shaped.

[0013] As a further improvement to the above technical solution, the second driving component includes a cylinder and a driving connecting block disposed at the telescopic end of the cylinder. The driving connecting block is connected to the tool holder. The cylinder is mounted on the first mounting plate via a cylinder seat. The first mounting plate is provided with a first guide rail, which is vertically arranged. The driving connecting block is provided with a first slider, which is slidably connected to the first guide rail.

[0014] As a further improvement to the above technical solution, a left-right angle adjustment component and a front-back angle adjustment component are provided between the drive connecting block and the blade holder. The left-right angle adjustment component is used to adjust the angle of the scraping head swinging left and right, and the front-back angle adjustment component is used to adjust the angle of the scraping head swinging back and forth.

[0015] As a further improvement to the above technical solution, the front and rear angle adjustment assembly includes a front and rear adjustment mounting base and two set screws. The bottom of the front and rear adjustment mounting base is provided with two first mounting ears, the top of the tool holder is provided with a second mounting ear, the top of the second mounting ear is provided with a swing arm, the second mounting ear is located between the two first mounting ears, the two first mounting ears and the second mounting ear are rotatably connected by a first pin, and the front and rear adjustment mounting base is provided with front and rear adjustment limiting blocks on both the front and rear sides. The two set screws are respectively threaded onto the two front and rear adjustment limiting blocks, and the ends of the two set screws respectively abut against the front and rear sides of the swing arm.

[0016] As a further improvement to the above technical solution, the left and right angle adjustment assembly includes a left and right adjustment mounting base and two micro heads. The left and right adjustment mounting base is connected to the drive connecting block. The bottom of the left and right adjustment mounting base is provided with two third mounting ears. The front and rear adjustment mounting base is located between the two third mounting ears. The two third mounting ears are rotatably connected to the front and rear adjustment mounting base through a second pin. The left and right sides of the left and right adjustment mounting base are provided with first bosses. The left and right sides of the front and rear adjustment mounting base are provided with second bosses. The two micro heads are respectively connected to the two first bosses, and the ends of the two micro heads abut against the tops of the two second bosses.

[0017] As a further improvement to the above technical solution, the first bracket includes two wall panels and two support plates, with the two support plates respectively disposed on the top of the two wall panels; the second bracket includes two upright plates and a crossbeam connecting the two upright plates, with the two upright plates respectively disposed on the top of the two support plates; a plurality of scraping and suction components are disposed on the crossbeam; and a first lateral adjustment component is disposed between the first bracket and the second bracket.

[0018] The first lateral adjustment assembly includes a first support, a first screw rotatably connected to the first support, and a first connecting block threadedly connected to the first screw. The support is disposed on a support plate, the first connecting block is fixedly connected to one of the upright plates, a first knob head is provided at one end of the first screw, a second guide rail is provided on the support plate, the length direction of the second guide rail extends along the length direction of the crossbeam, and a second slider is provided at the bottom of the upright plate, the second slider being slidably connected to the second guide rail.

[0019] As a further improvement to the above technical solution, the end of the crossbeam is rotatably connected to the upright plate through a third pin and fixed by bolts. The upright plate is provided with an arc-shaped waist groove. The bolt passes through the arc-shaped waist groove and is connected to the end of the crossbeam. The arc trajectory of the arc-shaped waist groove is set with the axis of the third pin as the center.

[0020] As a further improvement to the above technical solution, a second lateral adjustment component is provided between the crossbeam and the scraping and suction assembly. The second lateral adjustment component includes a second support, a second screw rotatably connected to the second support, and a second connecting block threadedly connected to the second screw. The second support is disposed on the crossbeam, the second connecting block is fixedly connected to the first mounting plate, a second knob head is provided at one end of the second screw, a third guide rail is disposed on the crossbeam, the length direction of the third guide rail extends along the length direction of the crossbeam, and a third slider is connected to the first mounting plate, the third slider being slidably connected to the third guide rail.

[0021] As a further improvement to the above technical solution, the pump set includes a mounting box and a plurality of peristaltic pumps mounted on the mounting box. A plurality of quick-connect fittings are provided on one side of the diluent box. The supply pipe includes a first diluent pipe and a second diluent pipe. The two ends of the first diluent pipe are respectively connected to the quick-connect fittings and the feed end of the peristaltic pump. The two ends of the second diluent pipe are respectively connected to the discharge end of the peristaltic pump and the scraper head.

[0022] As a further improvement to the above technical solution, the top of the diluent box is provided with a liquid injection port, and a first liquid level tube is connected to one side of the diluent box.

[0023] As a further improvement to the above technical solution, a buzzer is also provided on one side of the diluent box, and a liquid level sensor is provided on the top of the diluent box. The liquid level sensor is electrically connected to the buzzer.

[0024] As a further improvement to the above technical solution, the negative pressure assembly includes a vacuum generator, a negative pressure gauge mounted on the vacuum generator, a silencer, and a quick-connect air pipe connector. The quick-connect air pipe connector is used to connect to a positive pressure air source pipe. One end of the negative pressure pipe is connected to the buffer tank through a first pagoda connector, and the other end of the negative pressure pipe is connected to the vacuum generator through a second pagoda connector.

[0025] As a further improvement to the above technical solution, the buffer tank includes a tank body, a tank cover, and several pressure locks. The pressure locks are used to lock the tank cover to the top of the tank body. The buffer tank is connected to a second liquid level pipe. One end of the second liquid level pipe is connected to the tank cover, and the other end of the second liquid level pipe is connected to the lower side of the tank body.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model provides a tab-center placement device. By setting a scraping and suction mechanism, the second driving component can intermittently drive the scraping and suction head to scrape up the slurry on the surface of the electrode sheet, so that multiple tab grooves are formed in the middle position of the electrode sheet. Under the action of the negative pressure component, the scraped slurry is sucked into the inner cavity of the scraping and suction head. Thus, the tab-center placement process of multiple strips can be realized at the same time. Compared with the conventional laser cutting process, it can significantly reduce the manufacturing cost, energy consumption cost and subsequent maintenance cost of the equipment. Moreover, it can also avoid the damage to the human body caused by the metal dust generated during laser cutting.

[0028] 2. This utility model provides a device with a centrally located electrode tab. By setting up a liquid supply mechanism, the pump group pumps the diluent in the diluent box to several scraper heads through several liquid supply pipes, so that the slurry in the inner cavity of the scraper head is mixed with the diluent to form a mixed waste liquid, thereby avoiding the slurry from drying and clogging in the scraper head or pipe.

[0029] 3. This utility model provides a device with a centrally located electrode tab. By setting a waste liquid recovery mechanism, a negative pressure is formed in the negative pressure pipe, the buffer tank and the recovery pipe under the action of the negative pressure component. The mixed waste liquid in the inner cavity of the scraper head is sucked into the buffer tank through the recovery pipe, thereby realizing the recovery and buffering of the mixed waste liquid. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a structural schematic diagram provided by an example of this utility model;

[0032] Figure 2 yes Figure 1 Schematic diagram of the conveyor mechanism;

[0033] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 yes Figure 1 Schematic diagram of the middle scraping and suction mechanism;

[0035] Figure 5 yes Figure 4 Another structural diagram from a different perspective;

[0036] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0037] Figure 7 yes Figure 4 Schematic diagram of the middle scraping and suction assembly;

[0038] Figure 8 yes Figure 7 A sectional view;

[0039] Figure 9 yes Figure 8 Enlarged view of point C in the middle;

[0040] Figure 10 yes Figure 1 Schematic diagram of the liquid supply mechanism;

[0041] Figure 11 yes Figure 1 A schematic diagram of the waste liquid recycling mechanism.

[0042] Reference numerals: 1-Conveying mechanism, 11-First support, 1111-Wall panel, 112-Support plate, 2-Coating back roller, 13-Passing roller, 14-First driving component;

[0043] 2-Scraping and suction mechanism, 21-Second bracket, 211-Upright plate, 212-Crossbeam, 213-Third pin, 214-Bolt, 215-Arc-shaped groove, 22-Scraping and suction assembly, 221-First mounting plate, 222-Scraping and suction head, 2221-Knife holder, 22211-Second mounting ear, 22212-Swing arm, 2222-Scraper, 2223-Cap, 2224-Feeding channel, 2225-First liquid inlet channel 2226 - Liquid outlet channel; 2227 - Cover plate; 2228 - Second liquid inlet channel; 223 - Second drive component; 2231 - Cylinder; 2232 - Drive connecting block; 2233 - Cylinder seat; 2234 - First guide rail; 2235 - First slider; 224 - Left and right angle adjustment assembly; 2241 - Left and right adjustment mounting base; 2242 - Micrometer head; 2243 - Third mounting ear; 2244 - Second pin; 2245 - First boss, 225- Front and rear angle adjustment assembly, 2251- Front and rear adjustment mounting base, 2252- Set screw, 2253- First mounting ear, 2254- First pin, 2255- Front and rear adjustment limit block, 2256- Second boss, 23- Negative pressure assembly, 231- Vacuum generator, 232- Negative pressure pipe, 233- Negative pressure gauge, 234- Silencer, 235- Quick air hose connector, 236- First pagoda connector Head, 237-Second pagoda connector, 24-First lateral adjustment assembly, 241-First support, 242-First screw, 243-First connecting block, 244-First knob head, 245-Second guide rail, 246-Second slider, 25-Second lateral adjustment assembly, 251-Second support, 252-Second screw, 253-Second connecting block, 254-Second knob head, 255-Third guide rail, 256-Third slider;

[0044] 3-Liquid supply mechanism, 31-Diluent box, 311-Quick connector, 312-Injection port, 313-First level tube, 314-Buzzer, 315-Level sensor, 32-Pump assembly, 321-Mounting box, 322-Peristaltic pump, 331-First diluent tube, 332-Second diluent tube, 33-Liquid supply tube;

[0045] 4-Waste liquid recovery mechanism, 41-Buffer tank, 411-Tank body, 412-Tank cover, 413-Pressure lock, 414-Second liquid level pipe, 42-Recovery pipe. Detailed Implementation

[0046] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0047] Reference Figure 1 An example of this utility model provides a tab placement device, including a conveying mechanism 1, a scraping and suction mechanism 2, a liquid supply mechanism 3, and a waste liquid recovery mechanism 4. The conveying mechanism 1 is used to support and convey the electrode sheet, the scraping and suction mechanism 2 is used to scrape up and suck away the slurry on the surface of the electrode sheet, the liquid supply mechanism 3 is used to provide diluent to the scraping and suction mechanism 2 and dilute the scraped slurry to form a mixed waste liquid, and the waste liquid recovery mechanism 4 is used to recover the diluted mixed waste liquid.

[0048] Reference Figure 2 Structurally, the conveying mechanism 1 includes a first support 11, a coating back roller 12 and a guide roller 13 rotatably connected to the first support 11, and a first driving member 14 for driving the coating back roller 12 to rotate. The coating back roller 12 and the guide roller 13 are arranged in parallel, and the guide roller 13 is located at the rear oblique upper part of the coating back roller 12. The electrode sheet is wound around the roller surface of the coating back roller 12 and the guide roller 13.

[0049] Reference Figures 2 to 5 The scraping and suction mechanism 2 includes a second bracket 21, a plurality of scraping and suction components 22 disposed on the second bracket 21, and a negative pressure component 23 connecting the plurality of scraping and suction components 22. The second bracket 21 is disposed on the first bracket 11, and the plurality of scraping and suction components 22 are located above the coating back roller 12. The scraping and suction component 22 includes a first mounting plate 221, a scraping and suction head 222 movably connected to the first mounting plate 221, and a second driving member 223 for driving the scraping and suction head 222 to move up and down. The scraping and suction head 222 has an inner cavity, and the negative pressure component 23 is used to provide negative pressure to the plurality of scraping and suction heads 222.

[0050] The liquid supply mechanism 3 includes a diluent box 31, a pump set 32, and several liquid supply pipes 33. The diluent box 31 contains diluent, which may include, but is not limited to, pure water, alcohol, NMP, etc. Several scraper heads 222 are connected to the diluent box 31 through several liquid supply pipes 33. The pump set 32 ​​pumps the diluent in the diluent box 31 to several scraper heads 222 through several liquid supply pipes 33.

[0051] Furthermore, the waste liquid recycling mechanism 4 includes a buffer tank 41 and several recycling pipes 42. The negative pressure component 23 is connected to the buffer tank 41 through the negative pressure pipe 232, and several scraper heads 222 are respectively connected to the buffer tank 41 through several recycling pipes 42.

[0052] During production, the first drive unit 14 drives the coating back roller 12 to rotate, and the coating back roller 12 drives the electrode sheet to be conveyed. Several second drive units 223 respectively drive several scraper heads 222 to descend and contact the surface of the electrode sheet coated with slurry. The scraper heads 222 scrape up the slurry on the surface of the electrode sheet. Under the action of the negative pressure component 23, the scraped slurry is sucked into the inner cavity of the scraper head 222. Then, several second drive units 223 respectively drive several scraper heads 222 to rise, and repeat the above actions continuously according to product requirements. This causes the second drive units 223 to intermittently drive the scraper heads 222 to scrape up the slurry on the surface of the electrode sheet, so that multiple electrode tab slots are formed in the middle position of the electrode sheet. Thus, the electrode tab center placement process of multiple strips can be realized at the same time. Compared with the conventional laser cutting process, it can significantly reduce the manufacturing cost, energy consumption cost and subsequent maintenance cost of the equipment. Moreover, it can also avoid the damage to the human body caused by the metal dust generated during laser cutting.

[0053] Meanwhile, the pump unit 32 pumps the diluent in the diluent box 31 to several scraper heads 222 through several supply pipes 33, so that the slurry in the inner cavity of the scraper head 222 mixes with the diluent to form mixed waste liquid, thus preventing the slurry from drying and clogging in the scraper head 222 or pipes. Under the action of the negative pressure component 23, a negative pressure is formed in the negative pressure pipe 232, the buffer tank 41 and the recovery pipe 42, and the mixed waste liquid in the inner cavity of the scraper head 222 is sucked into the buffer tank 41 through the recovery pipe 42, thereby realizing the recovery and buffering of the mixed waste liquid.

[0054] Reference Figure 4 , Figure 7 and Figure 8 In some preferred embodiments, the scraper head 222 includes a blade holder 2221, a scraper 2222, and a pressure cap 2223. The blade holder 2221 is provided with a first groove for accommodating the scraper 2222. The pressure cap 2223 is used to press the scraper 2222 onto the blade holder 2221, thereby facilitating the replacement of the scraper 2222.

[0055] Reference Figure 8 and Figure 9Furthermore, a feeding channel 2224 is provided between the scraper 2222 and the blade holder 2221. The cross-section of the feeding channel 2224 is slit-shaped. A first liquid inlet channel 2225 is provided inside the pressure cap 2223, and a liquid outlet channel 2226 is provided inside the blade holder 2221. The feeding channel 2224 is connected to the first liquid inlet channel 2225 and the liquid outlet channel 2226 respectively. The liquid supply pipe 33 is connected to the pressure cap 2223 and is connected to the first liquid inlet channel 2225. The recovery pipe 42 is connected to the blade holder 2221 and is connected to the liquid outlet channel 2226. The scraped slurry is sucked into the feeding channel 2224. The diluent enters the feeding channel 2224 through the first liquid inlet channel 2225 and mixes with the slurry to form mixed waste. Under the action of negative pressure, the mixed waste enters the recovery pipe 42 through the liquid outlet channel 2226 and is discharged into the buffer tank 41 through the recovery pipe 42.

[0056] Furthermore, a second groove is provided on one side of the pressure cap 2223, and a cover plate 2227 is installed in the second groove. A second liquid inlet channel 2228 is formed between the cover plate 2227 and the second groove. The second liquid inlet channel 2228 is connected to the first liquid inlet channel 2225 and the feed channel 2224 respectively. The cross-section of the second liquid inlet channel 2228 is slit-shaped.

[0057] It is understandable that by setting the cover plate 2227, it is convenient to process the second liquid inlet channel 2228 into a slit-shaped cross-section. Moreover, by setting the second liquid inlet channel 2228 into a slit-shaped channel, it is possible to ensure that the diluent is sprayed along the length direction of the scraper 2222, ensuring that the diluent can be uniformly mixed with the slurry. At the same time, the diluent sprayed uniformly along the length direction of the scraper 2222 can also form a liquid seal effect, preventing the mixed waste liquid from flowing back out of the feed channel 2224.

[0058] Reference Figure 7 and Figure 8 In some preferred embodiments, the second driving component 223 includes a cylinder 2231 and a driving connecting block 2232 disposed at the telescopic end of the cylinder 2231. The driving connecting block 2232 is connected to the knife holder 2221. The cylinder 2231 is mounted on the first mounting plate 221 via the cylinder holder 2233. The first mounting plate 221 is provided with a first guide rail 2234, which is vertically arranged. The driving connecting block 2232 is provided with a first slider 2235, which is slidably connected to the first guide rail 2234. The structure driven by the cylinder 2231 is simple, and the manufacturing cost of the equipment is low. The cylinder 2231 telescopically drives the scraper head 222 to move along the length direction of the first guide rail 2234, thereby improving the stability of the scraper head 222 when it is raised and lowered, and ensuring the moving accuracy of the scraper head 222.

[0059] Specifically, the scraping and suction mechanism 2 also includes a solenoid valve group and several air pipes connected to the solenoid valve group. The solenoid valve group includes a second mounting plate and several fast solenoid valves set on the second mounting plate. The fast solenoid valves are connected to an air inlet adapter and several exhaust adapters. The air inlet adapter is used to connect to a pressurized air source pipeline, and the exhaust adapter is used to connect to an air pipe. The other end of the air pipe is connected to a cylinder 2231. Thus, the fast solenoid valve can accurately control the extension and retraction of the cylinder 2231, so that the cylinder 2231 drives the scraping and suction head 222 to achieve up and down reciprocating motion.

[0060] In some preferred embodiments, a left-right angle adjustment component 224 and a front-back angle adjustment component 225 are provided between the drive connecting block 2232 and the blade holder 2221. The left-right angle adjustment component 224 is used to adjust the angle of the scraper head 222 swinging left and right, and the front-back angle adjustment component 225 is used to adjust the angle of the scraper head 222 swinging back and forth. Thus, the blade of the scraper head 2222 can be flush with the surface of the electrode sheet, thereby improving the quality of the electrode tab slot in the electrode sheet.

[0061] It should be noted that the electrode is conveyed in the front-to-back direction, and the width of the electrode is in the left-to-right direction.

[0062] Specifically, the front and rear angle adjustment assembly 225 includes a front and rear adjustment mounting base 2251 and two set screws 2252. The bottom of the front and rear adjustment mounting base 2251 is provided with two first mounting ears 2253, and the top of the knife holder 2221 is provided with a second mounting ear 22211. The top of the second mounting ear 22211 is provided with a swing arm 22212. The second mounting ear 22211 is located between the two first mounting ears 2253. The two first mounting ears 2253 and the second mounting ear 22211 are rotatably connected by a first pin 2254. Front and rear adjustment limit blocks 2255 are provided on both the front and rear sides of the front and rear adjustment mounting base 2251. The two set screws 2252 are threaded onto the two front and rear adjustment limit blocks 2255 respectively, and the ends of the two set screws 2252 abut against the front and rear sides of the swing arm 22212 respectively.

[0063] Understandably, by screwing in one set screw 2252 and out the other set screw 2252 by the same distance, the set screw 2252 pushes the swing arm 22212 to swing around the first pin 2254, thereby causing the scraper head 222 to swing around the first pin 2254 at a certain angle, thus enabling precise adjustment of the front and rear angles of the scraper head 222.

[0064] To make the range of front and rear angle adjustment more intuitive, a first pointer is provided on one side of the front and rear adjustment mounting base 2251, and a first angle scale is provided on one side of the tool holder 2221. The first pointer points to the scale on the first angle scale.

[0065] Furthermore, the left and right angle adjustment component 224 includes a left and right adjustment mounting base 2241 and two micro heads 2242. The left and right adjustment mounting base 2241 is connected to the drive connecting block 2232. The bottom of the left and right adjustment mounting base 2241 is provided with two third mounting ears 2243. The front and rear adjustment mounting base 2251 is located between the two third mounting ears 2243. The two third mounting ears 2243 and the front and rear adjustment mounting base 2251 are rotatably connected by a second pin 2244. The left and right sides of the left and right adjustment mounting base 2241 are provided with first bosses 2245, and the left and right sides of the front and rear adjustment mounting base 2251 are provided with second bosses 2256. The two micro heads 2242 are respectively connected to the two first bosses 2245, and the ends of the two micro heads 2242 abut against the tops of the two second bosses 2256.

[0066] It is understandable that by turning one of the micro heads 2242 in the forward direction and the other micro head 2242 in the reverse direction, the end of the micro head 2242 pushes the front and rear adjustment mounting base 2251 to swing around the second pin 2244, thereby causing the scraper head 222 to swing around the second pin 2244 at a certain angle, thus enabling precise adjustment of the left and right angle of the scraper head 222.

[0067] Reference Figure 2 and Figure 3 In some preferred embodiments, the first support 11 includes two wall panels 111 and two support plates 112, with the two support plates 112 respectively disposed on the top of the two wall panels 111. The two ends of the coating back roller 12 and the passing roller 13 are rotatably connected to the two wall panels 111 respectively. The second support 21 includes two upright plates 211 and a crossbeam 212 connecting the two upright plates 211. The two upright plates 211 are respectively disposed on the top of the two support plates 112. A plurality of scraping and suction components 22 are disposed on the crossbeam 212. A first lateral adjustment component 24 is disposed between the first support 11 and the second support 21.

[0068] Specifically, the first lateral adjustment assembly 24 includes a first support 241, a first screw 242 rotatably connected to the first support 241, and a first connecting block 243 threadedly connected to the first screw 242. The first support 241 is mounted on the support plate 112, and the first connecting block 243 is fixedly connected to one of the upright plates 211. One end of the first screw 242 is provided with a first knob head 244. A second guide rail 245 is provided on the support plate 112. The length direction of the second guide rail 245 extends along the length direction of the crossbeam 212. A second slider 246 is provided at the bottom of the upright plate 211, and the second slider 246 is slidably connected to the second guide rail 245.

[0069] It is understandable that by rotating the first knob head 244, the first screw 242 is rotated, the first screw 242 drives the first connecting block 243 to move horizontally, and then drives the second bracket 21 to move along the length direction of the second guide rail 245. The second bracket 21 drives the several scraping and suction components 22 to move horizontally, thereby enabling precise adjustment of the position of the several scraping and suction components 22, making it easy to adjust the several scraping and suction components 22 to the middle position of the electrode.

[0070] Furthermore, limit blocks are provided at both ends of the second guide rail 245 to block the second slider 246, thereby preventing the second slider 246 from disengaging from the second guide rail 245.

[0071] In some preferred embodiments, the end of the crossbeam 212 is rotatably connected to the upright plate 211 via a third pin 213 and fixed by bolts 214. The upright plate 211 is provided with an arc-shaped waist groove 215. The bolts 214 pass through the arc-shaped waist groove 215 and are connected to the end of the crossbeam 212. The arc-shaped trajectory of the arc-shaped waist groove 215 is set with the axis of the third pin 213 as the center.

[0072] Understandably, when adjusting the angle of the crossbeam 212, the bolt 214 is first loosened, the third pin 213 is used as the center of rotation, and then an external force is applied to make the crossbeam 212 rotate around the third pin 213. At the same time, the bolt 214 moves along an arc-shaped trajectory in the arc-shaped groove 215. Finally, the bolt 214 is tightened again, thereby fixing the crossbeam 212 at different angle positions, and thus causing several scraping and suction components 22 on the crossbeam 212 to swing at a certain angle simultaneously.

[0073] Furthermore, two arc-shaped waist-shaped grooves 215 are provided on the upright plate 211. The two arc-shaped waist-shaped grooves 215 are arranged sequentially from top to bottom. The arc trajectory of the two arc-shaped waist-shaped grooves 215 is set with the axis of the third pin 213 as the center, thereby increasing the stability of the connection between the upright plate 211 and the crossbeam 212.

[0074] Furthermore, a second pointer is provided at one bottom end of the crossbeam 212, and a second angle scale plate is provided on the inner side of the vertical plate 211. The second pointer points to the scale on the second angle scale plate, thereby enabling a more intuitive display of the swing angle of the crossbeam 212.

[0075] Reference Figure 4 , Figure 5 and Figure 6In some preferred embodiments, a second lateral adjustment component 25 is provided between the crossbeam 212 and the scraping and suction component 22. The number of second lateral adjustment components 25 is multiple, and the number of second lateral adjustment components 25 corresponds to the number of scraping and suction components 22. Specifically, the second lateral adjustment component 25 includes a second support 251, a second screw 252 rotatably connected to the second support 251, and a second connecting block 253 threadedly connected to the second screw 252. The second support 251 is disposed on the crossbeam 212, the second connecting block 253 is fixedly connected to the first mounting plate 221, one end of the second screw 252 is provided with a second knob head 254, a third guide rail 255 is disposed on the crossbeam 212, the length direction of the third guide rail 255 extends along the length direction of the crossbeam 212, and a third slider 256 is connected to the first mounting plate 221, the third slider 256 being slidably connected to the third guide rail 255.

[0076] Understandably, by rotating the second knob head 254, the second screw 252 is rotated, and the second screw 252 drives the second connecting block 253 to move horizontally, thereby driving the scraping and suction assembly 22 to move along the length direction of the third guide rail 255. Thus, the position of each scraping and suction assembly 22 can be precisely and individually adjusted.

[0077] Furthermore, a linear horizontal movement scale is provided on one side of the crossbeam 212, thereby enabling a more intuitive display of the specific position of each scraping and suction component 22.

[0078] Reference Figure 1 and Figure 10 In some preferred embodiments, the pump set 32 ​​includes a mounting box 321 and a plurality of peristaltic pumps 322 disposed on the mounting box 321. A plurality of quick-connect pipe connectors 311 are disposed on one side of the diluent box 31. The supply pipe 33 includes a first diluent pipe 331 and a second diluent pipe 332. The two ends of the first diluent pipe 331 are respectively connected to the quick-connect pipe connectors 311 and the feed end of the peristaltic pumps 322. The two ends of the second diluent pipe 332 are respectively connected to the discharge end of the peristaltic pumps 322 and the scraper head 222.

[0079] Furthermore, the top of the diluent container 31 is provided with an injection port 312, through which the operator adds diluent.

[0080] Furthermore, a first liquid level tube 313 is connected to one side of the diluent box 31. The first liquid level tube 313 is a transparent tube, which makes it easy for the operator to observe the liquid level in the diluent box 31.

[0081] Furthermore, a buzzer 314 is provided on one side of the diluent container 31, and a liquid level sensor 315 is provided on the top of the diluent container 31. The liquid level sensor 315 is electrically connected to the buzzer 314. The liquid level sensor 315 can monitor the liquid level in the diluent container 31 in real time. When the liquid level in the diluent container 31 is lower than the set value, the liquid level sensor 315 transmits a signal to the buzzer 314, and the buzzer 314 sounds an alarm to remind the operator to add diluent in time.

[0082] Reference Figure 1 and Figure 11 In some preferred embodiments, the negative pressure assembly 23 includes a vacuum generator 231, a negative pressure gauge 233 disposed on the vacuum generator 231, a silencer 234, and a quick-connect pipe connector 235. The quick-connect pipe connector 235 is used to connect to a positive pressure air source pipe. One end of the negative pressure pipe 232 is connected to the buffer tank 41 through a first pagoda connector 236, and the other end of the negative pressure pipe 232 is connected to the vacuum generator 231 through a second pagoda connector 237.

[0083] It is understandable that a positive pressure gas source is introduced into the positive pressure gas source pipe, and the positive pressure gas source passes through the cavity of the vacuum generator 231 and is discharged from the silencer 234. When the positive pressure gas source is quickly discharged from the cavity by the vacuum generator 231 using the Venturi principle, the cavity of the vacuum generator 231 generates a negative pressure, and a positive pressure is generated at the silencer 234. Since the cavity of the vacuum generator 231 is connected to the buffer tank 41 through the negative pressure pipe 232, and the buffer tank 41 is connected to the scraper head 222 through the recovery pipe 42, a negative pressure is formed inside the negative pressure pipe 232, the buffer tank 41, the recovery pipe 42, and the scraper head 222, which facilitates the discharge of the mixed waste liquid.

[0084] Furthermore, the buffer tank 41 includes a tank body 411, a tank cover 412, and several pressure locks 413. The pressure locks 413 are used to lock the tank cover 412 to the top of the tank body 411, enabling the tank cover 412 to be opened or locked, facilitating the removal of the mixed waste liquid inside the tank body 411.

[0085] Furthermore, the buffer tank 41 is connected to a second liquid level pipe 414. One end of the second liquid level pipe 414 is connected to the tank cover 412, and the other end of the second liquid level pipe 414 is connected to the lower side of the tank body 411. The second liquid level pipe 414 is a transparent pipe, which makes it easy for operators to observe the liquid level in the buffer tank 41.

[0086] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A device for placing a centrally located electrode tab, characterized in that, include: A conveying mechanism for supporting and conveying electrode sheets includes a first support, a coating back roller and a guide roller rotatably connected to the first support, and a first driving member for driving the coating back roller to rotate. The electrode sheets are wound around the roller surfaces of the coating back roller and the guide roller. A scraping and suction mechanism for scraping up and sucking away slurry from the surface of an electrode sheet includes a second support, a plurality of scraping and suction assemblies disposed on the second support, and a negative pressure assembly connecting the plurality of scraping and suction assemblies. The second support is disposed on the first support, and the plurality of scraping and suction assemblies are located above the coating back roller. Each scraping and suction assembly includes a first mounting plate, a scraping and suction head movably connected to the first mounting plate, and a second driving member for driving the scraping and suction head to move up and down. The scraping and suction head has an inner cavity, and the negative pressure assembly is used to provide negative pressure to the plurality of scraping and suction heads. A liquid supply mechanism is used to provide diluent to the scraper head and dilute the scraped slurry to form a mixed waste liquid. It includes a diluent box, a pump set and a plurality of supply pipes. The plurality of scraper heads are respectively connected to the diluent box through the plurality of supply pipes. The pump set pumps the diluent in the diluent box to the plurality of scraper heads through the plurality of supply pipes. A waste liquid recovery mechanism for recovering diluted mixed waste liquid includes a buffer tank and several recovery pipes. The negative pressure component is connected to the buffer tank through a negative pressure pipe, and several scraper heads are respectively connected to the buffer tank through several recovery pipes.

2. The electrode holder with central placement according to claim 1, characterized in that, The scraper head includes a blade holder, a scraper, and a pressure cap. The blade holder has a first groove for accommodating the scraper. The pressure cap is used to press the scraper onto the blade holder. A feed channel is provided between the scraper and the blade holder. The feed channel has a slit-shaped cross-section. A first liquid inlet channel is provided inside the pressure cap. A liquid outlet channel is provided inside the blade holder. The feed channel is connected to both the first liquid inlet channel and the liquid outlet channel. A liquid supply pipe is connected to the pressure cap and communicates with the first liquid inlet channel. A recovery pipe is connected to the blade holder and communicates with the liquid outlet channel.

3. The electrode holder with central placement according to claim 2, characterized in that, A second groove is provided on one side of the cap, and a cover plate is installed in the second groove. A second liquid inlet channel is formed between the cover plate and the second groove. The second liquid inlet channel is connected to the first liquid inlet channel and the feed channel respectively. The cross-section of the second liquid inlet channel is slit-shaped.

4. The electrode holder device according to claim 2, characterized in that, The second driving component includes a cylinder and a driving connecting block disposed at the telescopic end of the cylinder. The driving connecting block is connected to the tool holder. The cylinder is mounted on the first mounting plate via a cylinder seat. The first mounting plate is provided with a first guide rail, which is vertically arranged. The driving connecting block is provided with a first slider, which is slidably connected to the first guide rail.

5. The electrode holder device according to claim 4, characterized in that, A left-right angle adjustment component and a front-back angle adjustment component are provided between the drive connecting block and the blade holder. The left-right angle adjustment component is used to adjust the angle of the scraping head swinging left and right, and the front-back angle adjustment component is used to adjust the angle of the scraping head swinging back and forth.

6. The electrode holder with central placement according to claim 5, characterized in that, The front-to-back angle adjustment assembly includes a front-to-back adjustment mounting base and two set screws. The bottom of the front-to-back adjustment mounting base is provided with two first mounting ears, and the top of the tool holder is provided with a second mounting ear. A swing arm is provided on the top of the second mounting ear. The second mounting ear is located between the two first mounting ears. The two first mounting ears and the second mounting ear are rotatably connected by a first pin. Front-to-back adjustment limiting blocks are provided on both the front and back sides of the front-to-back adjustment mounting base. The two set screws are respectively threaded onto the two front-to-back adjustment limiting blocks, and the ends of the two set screws respectively abut against the front and back sides of the swing arm.

7. A tab-positioning device according to claim 6, characterized in that, The left and right angle adjustment assembly includes a left and right adjustment mounting base and two micro heads. The left and right adjustment mounting base is connected to the drive connecting block. The bottom of the left and right adjustment mounting base is provided with two third mounting ears. The front and rear adjustment mounting base is located between the two third mounting ears. The two third mounting ears are rotatably connected to the front and rear adjustment mounting base by a second pin. The left and right sides of the left and right adjustment mounting base are provided with first bosses. The left and right sides of the front and rear adjustment mounting base are provided with second bosses. The two micro heads are respectively connected to the two first bosses, and the ends of the two micro heads abut against the tops of the two second bosses.

8. The electrode holder device according to claim 1, characterized in that, The first bracket includes two wall panels and two support plates, with the two support plates respectively disposed on the top of the two wall panels. The second bracket includes two upright plates and a crossbeam connecting the two upright plates, with the two upright plates respectively disposed on the top of the two support plates. A plurality of scraping and suction components are disposed on the crossbeam. A first lateral adjustment component is disposed between the first bracket and the second bracket. The first lateral adjustment assembly includes a first support, a first screw rotatably connected to the first support, and a first connecting block threadedly connected to the first screw. The support is disposed on a support plate, the first connecting block is fixedly connected to one of the upright plates, a first knob head is provided at one end of the first screw, a second guide rail is provided on the support plate, the length direction of the second guide rail extends along the length direction of the crossbeam, and a second slider is provided at the bottom of the upright plate, the second slider being slidably connected to the second guide rail.

9. A tab-positioning device according to claim 8, characterized in that, The end of the crossbeam is rotatably connected to the vertical plate via a third pin and fixed with bolts. The vertical plate is provided with an arc-shaped waist groove. The bolt passes through the arc-shaped waist groove and is connected to the end of the crossbeam. The arc-shaped trajectory of the arc-shaped waist groove is set with the axis of the third pin as the center.

10. A tab-positioning device according to claim 8, characterized in that, A second lateral adjustment assembly is provided between the crossbeam and the scraping and suction assembly. The second lateral adjustment assembly includes a second support, a second screw rotatably connected to the second support, and a second connecting block threadedly connected to the second screw. The second support is disposed on the crossbeam, and the second connecting block is fixedly connected to the first mounting plate. A second knob head is provided at one end of the second screw. A third guide rail is provided on the crossbeam, and the length direction of the third guide rail extends along the length direction of the crossbeam. A third slider is connected to the first mounting plate, and the third slider is slidably connected to the third guide rail.

11. A tab-positioning device according to claim 1, characterized in that, The pump set includes a mounting box and several peristaltic pumps mounted on the mounting box. Several quick-connect fittings are provided on one side of the diluent box. The supply pipe includes a first diluent pipe and a second diluent pipe. The two ends of the first diluent pipe are respectively connected to the quick-connect fittings and the feed end of the peristaltic pump. The two ends of the second diluent pipe are respectively connected to the discharge end of the peristaltic pump and the scraper head.

12. A tab-positioning device according to claim 11, characterized in that, The diluent box has an injection port on its top, a first level tube connected to one side of the diluent box, a buzzer on one side of the diluent box, and a level sensor on its top. The level sensor is electrically connected to the buzzer.

13. The electrode holder with centrally located tab according to claim 1, characterized in that, The negative pressure assembly includes a vacuum generator, a negative pressure gauge mounted on the vacuum generator, a silencer, and a quick-connect air hose connector. The quick-connect air hose connector is used to connect to a positive pressure air source pipe. One end of the negative pressure pipe is connected to the buffer tank via a first pagoda connector, and the other end of the negative pressure pipe is connected to the vacuum generator via a second pagoda connector. The buffer tank includes a tank body, a tank cover, and several pressure locks. The pressure locks are used to lock the tank cover to the top of the tank body. The buffer tank is connected to a second liquid level pipe. One end of the second liquid level pipe is connected to the tank cover, and the other end of the second liquid level pipe is connected to the lower side of the tank body.

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