Lithium metal unwinding and sheeting system

Abstract

The application discloses a lithium metal unwinding and sheet making system, which comprises an unwinding mechanism, an unwinding deviation correction mechanism, a lithium metal tension detection mechanism, a running deviation correction mechanism, an intelligent storage mechanism, a sheet laser cutting mechanism, a main traction mechanism, a sheet transfer mechanism, a sheet detection mechanism and a tab laser cutting mechanism, wherein the main traction mechanism is used for traction of the material belt to sequentially pass through the unwinding deviation correction mechanism, the lithium metal tension detection mechanism, the running deviation correction mechanism and the intelligent storage mechanism, and then enter the sheet laser cutting mechanism; the lithium metal tension detection mechanism is used for detection of the tension of the material belt, and the unwinding mechanism adjusts the working parameters according to the tension detection result, so that the tension of the material belt reaches a set value; and the sheet transfer mechanism is used for transfer of the sheet output by the sheet laser cutting mechanism to the sheet detection mechanism and the tab laser cutting mechanism.

Description

Technical Field

[0001] The present invention relates to a lithium metal sheet making system, in particular to a lithium metal unwinding and sheet making system, and belongs to the technical field of new energy lithium battery manufacturing. Background Art

[0002] With the global energy transition and upgrades, and the increasing demands for carbon emissions, technology is placing ever-higher demands on batteries. Traditional lithium-ion batteries are no longer able to meet the needs of various industries, and the market urgently needs a new battery product to replace existing lithium-ion batteries. Lithium metal batteries offer high energy density, superior safety, and continuously improving cycle life. They hold significant potential to replace existing lithium-ion batteries in the future, and the market development prospects are enormous.

[0003] Lithium metal is silvery white and extremely soft, easily breaking when pulled. It is also very sticky. Existing unwinding equipment uses a minimum tension of tens of Newtons, which can break lithium metal, making it impossible to unwind. Furthermore, existing unwinding equipment also experiences significant tension fluctuations, which can also cause lithium metal ribbon breakage. Therefore, the current lithium-ion production processes and equipment on the market cannot fully replace those used for lithium metal batteries. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a lithium metal unwinding and film-making equipment that can monitor the tension of the material strip in real time, monitor whether the material strip is deviated in real time, adjust the tension of the material strip in real time, and correct the deviation in real time.

[0005] To achieve the aforementioned purpose of the invention, the technical solution adopted by the present invention includes a lithium metal unwinding and film making system,

[0006] The lithium metal unwinding and film-making system includes an unwinding mechanism, an unwinding correction mechanism, a lithium metal tension detection mechanism, a traveling correction mechanism, an intelligent material storage mechanism, a pole piece laser cutting mechanism, a main traction mechanism, a pole piece transfer mechanism, and a pole tab laser cutting mechanism;

[0007] Wherein, the unwinding mechanism is at least used for unwinding the metal lithium strip to provide the metal lithium strip;

[0008] The main traction mechanism is at least used to pull the material strip through the unwinding and correcting mechanism, the lithium metal tension detection mechanism, the traveling and correcting mechanism, and the intelligent material storage mechanism in sequence and then enter the electrode laser cutting mechanism;

[0009] The unwinding deviation correction mechanism is at least used to monitor whether the first designated portion of the material strip unwound by the unwinding mechanism is at a set position, and when the first designated portion of the material strip deviates from the first set position, cooperate with the unwinding mechanism to adjust the position of the material roll so that the first designated portion of the material strip reaches the first set position;

[0010] The lithium metal tension detection mechanism is at least used to detect the tension of the material strip, and to adjust the working parameters of the unwinding mechanism according to the tension detection result so that the tension of the material strip reaches a set value;

[0011] The traveling deviation correcting mechanism is at least used to detect and adjust the position of the second designated portion of the material strip during traveling, so that the second designated portion of the material strip is maintained at the second set position during traveling;

[0012] The intelligent material storage mechanism is used to store at least part of the material strip;

[0013] The pole piece laser cutting mechanism is at least used for cutting the received material strip to form a pole piece;

[0014] The pole piece transfer mechanism is at least used to transfer the pole piece output by the pole piece laser cutting mechanism to the pole tab laser cutting mechanism;

[0015] The tab laser cutting mechanism is at least used for cutting the tabs on the pole pieces.

[0016] Furthermore, the unwinding mechanism includes a first adjustment platform, a first deviation-correcting component and a first power component; the first deviation-correcting component is fixed to the first adjustment platform, and the first power component is placed at one end of the first deviation-correcting component.

[0017] Furthermore, the unwinding correction mechanism includes a translation component, an unpowered roller correction component and a sensor detection component. The translation component is provided with a transverse guide rail, and limit blocks are provided at both ends of the guide rail. The unpowered roller correction component is placed above the transverse guide rail. The unpowered roller correction component is connected to the unwinding mechanism through a correction connecting rod, and the sensor detection component is located above the unpowered roller correction component.

[0018] Furthermore, the first correction component includes an air-expanding shaft, a correction motor driver, a connecting shaft, an air-expanding shaft fixing plate, an air-expanding shaft support plate, an adjustment plate and a universal joint. The correction motor driver is placed at the bottom of the first adjustment platform. The air-expanding shaft fixing plate and the correction motor driver are connected through the adjustment plate. A second guide rail is provided above the first adjustment platform, and limit blocks are provided at both ends of the second guide rail. The air-expanding shaft fixing plate is placed above the second guide rail, and the air-expanding shaft support plate is placed above the air-expanding shaft fixing plate. The air-expanding shaft is fixed to one end of the connecting shaft, and the connecting shaft is fixed to the air-expanding shaft support plate. The universal joint is connected to the other end of the connecting shaft.

[0019] Furthermore, the first power assembly includes a motor, a reducer, a motor fixing plate A, a motor fixing plate B, a motor fixing plate C, a driving wheel, and a driven wheel. The motor is installed on the reducer, the reducer is placed on one side of the motor fixing plate B, and the other side of the motor fixing plate B is placed on one side of the motor fixing plate A. The driving wheel is placed at the shaft end of the reducer and on the other side of the motor fixing plate A. The motor fixing plate C is placed at the bottom of the motor fixing plate A, and the driven wheel is placed at the other end of the connecting shaft of the correction assembly.

[0020] Furthermore, the unwinding and film making system also includes one or more of a material roll thickness measuring mechanism, an anti-static mechanism, a tape splicing platform, a high tension detection mechanism, an iron removal mechanism, a first dust removal mechanism, a diaphragm winding mechanism, an auxiliary drive mechanism, and a second dust removal mechanism.

[0021] The material roll thickness measuring mechanism is at least used to detect the thickness of the material roll provided on the unwinding mechanism.

[0022] The static electricity removal mechanism and the tape splicing platform are sequentially arranged between the unwinding and correcting mechanism and the lithium metal tension detection mechanism. The static electricity removal mechanism is at least used to remove the static charge on the material tape.

[0023] The high tension detection mechanism is arranged on one side of the lithium metal tension detection mechanism and upstream of the traveling correction mechanism, and is at least used to detect the tension of other materials. The main traction mechanism is also used to pull the material strips of other materials through the unwinding correction mechanism, the high tension detection mechanism, the traveling correction mechanism, and the intelligent storage mechanism in sequence and then enter the pole piece laser cutting mechanism.

[0024] The iron removal mechanism is arranged between the lithium metal tension detection mechanism and the travel correction mechanism, and is used to remove impurity metal on the material strip.

[0025] The diaphragm winding mechanism is arranged between the intelligent material storage mechanism and the pole piece laser cutting mechanism, and is at least used to separate the metallic lithium in the material strip from the diaphragm and collect the separated diaphragm.

[0026] The auxiliary driving mechanism is arranged between the intelligent material storage mechanism and the pole piece laser cutting mechanism.

[0027] Furthermore, the material roll thickness measuring mechanism is an infrared positioning material roll thickness measuring mechanism, and includes an infrared laser, a roll thickness measuring sensor, an infrared positioning roll thickness measuring base, an infrared positioning roll thickness measuring guide rod, an infrared laser fixing block and a roll thickness measuring fixing block. The infrared positioning roll thickness measuring guide rod is fixed to the infrared positioning roll thickness measuring base, the infrared laser fixing block and the roll thickness measuring fixing block are both fixed to the infrared positioning roll thickness measuring guide rod, the infrared laser is fixed to the infrared laser fixing block, the infrared laser emits red light to facilitate roll material positioning, the roll thickness measuring sensor is fixed to the roll thickness measuring fixed block, and the roll thickness measuring sensor detects the thickness of the roll material in real time during the operation of the equipment.

[0028] Furthermore, the static electricity removal mechanism includes a static electricity removal base, a static electricity removal bracket and a static electricity remover, the static electricity remover is placed on one side of the static electricity removal bracket, and one end of the static electricity removal bracket is placed on one side of the static electricity removal base.

[0029] Furthermore, the splicing platform includes an unpowered roller assembly, a cylinder belt pressing assembly and a splicing dust suction device, the unpowered roller assembly is placed on one side of the cylinder belt pressing assembly, and the splicing dust suction device is placed in the middle of the cylinder belt pressing assembly.

[0030] Furthermore, the high tension detection mechanism includes a second tension roller guide rod, a passing roller, a limit block and a second tension detector, the second tension roller guide rod is placed in the passing roller, the limit block is placed at one end of the passing roller and at one end of the second tension roller guide rod, and the other end of the second tension roller guide rod is placed in the fixing hole of the second tension detector.

[0031] Furthermore, the iron removal mechanism includes two multi-stage pull-out iron removal devices arranged relatively to each other, the pull-out iron removal device includes an iron removal module, and an iron removal fixing assembly is provided on one side of the iron removal module. The iron removal fixing assembly includes an iron removal fixing plate and an iron removal fixing frame. The iron removal module is fixed on the iron removal fixing plate, and the iron removal fixing plate is provided on the iron removal fixing frame.

[0032] Furthermore: the first dust removal mechanism includes a multifunctional static dust removal mechanism, the static dust removal mechanism includes a dust removal fixing seat and a second dust removal component arranged on the dust removal fixing seat, the dust removal fixing seat includes a dust removal base plate and a dust removal fixing plate fixedly connected to the dust removal base plate, and dust removal reinforcement ribs are arranged between the dust removal base plate and the dust removal fixing plate.

[0033] Furthermore, the intelligent storage mechanism includes a fixed component, a fourth power component is provided on the fixed component, the fixed end of the fourth power component is fixed on the fixed component, the driving end of the fourth power component is fixedly connected to a third unpowered roller component, and the third unpowered roller component moves in a straight line under the drive of the fourth power component.

[0034] Furthermore, the diaphragm winding mechanism includes a second adjustment platform, a winding assembly is provided on the second adjustment platform, a second correction assembly is provided on one side of the second adjustment platform, the fixed end of the second correction assembly is fixedly connected to the second adjustment platform, the driving end of the second correction assembly is connected to the winding assembly and can drive the winding assembly to move, and one end of the winding assembly is provided with a second power assembly for driving the winding assembly to wind.

[0035] Furthermore, the second dust removal mechanism includes a split dust collection mechanism, including a dust collection hood, a first dust collection component is provided on one side of the dust collection hood, and a flow guide component is provided on the side of the first dust collection hood away from the first dust collection component.

[0036] Furthermore, the auxiliary drive mechanism includes a fixed frame, a main drive assembly and a driven assembly are provided on the fixed frame, there is a gap between the main drive assembly and the driven assembly, and an adsorption tray for adsorbing the material belt is provided between the main drive assembly and the driven assembly, a clamping assembly is provided on one side of the main drive assembly or the driven assembly, and the clamping assembly is used to reduce the gap between the main drive assembly and the driven assembly, so that the main drive assembly and the driven assembly cooperate to drive the material belt to move.

[0037] Furthermore, the electrode transfer mechanism includes a suction belt separation traction mechanism, a vacuum conveying belt line, a high-speed turntable mechanism and a transfer mechanism, which are arranged in sequence according to the transmission direction of the lithium metal electrode.

[0038] Furthermore, the suction belt disengagement traction mechanism includes a support frame, the support frame is provided with an adsorption plate and a supporting plate, the supporting plate is arranged above the adsorption plate, and a plurality of first adsorption holes are provided at one end of the adsorption plate away from the supporting plate.

[0039] Furthermore, the vacuum conveying belt line includes a conveying frame and a conveying belt arranged on the conveying frame, a continuous vacuum chamber is arranged inside one end of the conveying frame, and an intermittent vacuum chamber is arranged inside the other end of the conveying frame.

[0040] Furthermore, the high-speed turntable mechanism includes a cam indexer, a suction cup device and a swing arm device, the suction cup device is placed at one end of the swing arm device, and the other end of the swing arm device is placed above the cam indexer.

[0041] Furthermore, the transfer mechanism includes a suction cup assembly and a driving assembly, and suction cup assemblies are respectively provided at both ends of the driving assembly.

[0042] Furthermore, the pole piece detection mechanism includes a CCD positioning detection mechanism, and the CCD positioning detection mechanism includes a detection platform. One side of the detection platform is provided with an X-axis moving component for driving the detection platform to move along the X-axis direction, a Y-axis moving component for driving the detection platform to move along the Y-axis, a rotating component for driving the detection platform to rotate, and a CCD component for detecting whether there are defects in the pole piece.

[0043] Furthermore, the lithium metal unwinding and film-making system further includes a material waiting platform and / or a vacuum explosion-proof mechanism.

[0044] Furthermore, the material waiting platform includes a plurality of adsorption holes, a bottom plate and a support rod, the bottom plate is fixed to the support rod, and the plurality of adsorption holes are placed above the bottom plate.

[0045] Furthermore, the vacuum explosion-proof mechanism includes a vacuum explosion-proof box, a vacuum pipe, a vacuum adsorption collection pipe and a dust removal waste collection pipe. One end of the vacuum pipe is connected to the vacuum explosion-proof box, and the dust removal waste collection pipe is connected to the end of the vacuum pipe away from the vacuum explosion-proof box. There are multiple vacuum adsorption collection pipes, and multiple vacuum adsorption collection pipes are connected to the vacuum pipe.

[0046] Compared with the prior art, the advantages of the present invention include:

[0047] 1) The unwinding correction mechanism provided by the present invention can monitor in real time whether the material coil is deviating and can actively adjust the position of the material coil to make the material coil reach the predetermined position. The traveling correction mechanism can monitor in real time whether the material strip is deviating during travel and can actively adjust the position of the material strip to make the material strip reach the predetermined position. The unwinding mechanism can adjust in real time according to the deviation of the material strip, thereby reducing the probability of the lithium metal strip breaking.

[0048] 2) The lithium metal tension detection mechanism provided by the present invention can monitor the tension of the material strip in real time. The intelligent material storage mechanism can enable the unwinding mechanism to unwind continuously and can precisely control the tension of the material strip, thereby reducing the breakage of the lithium metal material strip and improving the working efficiency of the equipment.

[0049] 3) The coil thickness measuring mechanism provided by the present invention uses infrared laser for positioning, allowing workers to quickly and accurately install the coil to the required position. At the same time, the coil thickness measuring mechanism can monitor the real-time radius changes of the coil, ensuring that the coil maintains a constant linear speed during the production process;

[0050] 4) The iron removal mechanism provided by the present invention can remove iron filings and impurities on the material strip, thereby improving the performance and reliability of the battery;

[0051] 5) The tape splicing platform mechanism provided by the present invention can splice the two ends of the broken tape after the material tape is broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the overall structure of a lithium metal unwinding and film-making system provided by the present invention;

[0053] Figure 2 A schematic structural diagram of a roll thickness measuring mechanism provided in an embodiment of the present invention;

[0054] Figure 3 A schematic structural diagram of an unwinding mechanism and an unwinding deviation-correcting mechanism provided in an embodiment of the present invention;

[0055] Figure 4 A schematic structural diagram of a static electricity removal mechanism provided in an embodiment of the present invention;

[0056] Figure 5 A schematic structural diagram of a belt splicing platform mechanism provided in an embodiment of the present invention;

[0057] Figure 6 A schematic structural diagram of a lithium metal tension detection mechanism provided in an embodiment of the present invention;

[0058] Figure 7 A schematic structural diagram of an iron removal mechanism provided in an embodiment of the present invention;

[0059] Figure 8 A schematic structural diagram of a travel deviation correction mechanism provided in an embodiment of the present invention;

[0060] Figure 9 A schematic structural diagram of a static electricity removal and dust collection mechanism provided in an embodiment of the present invention;

[0061] Figure 10 A schematic structural diagram of an intelligent storage mechanism provided in an embodiment of the present invention;

[0062] Figure 11 A schematic structural diagram of a diaphragm winding mechanism provided in an embodiment of the present invention;

[0063] Figure 12 A schematic structural diagram of an auxiliary drive mechanism provided in an embodiment of the present invention;

[0064] Figure 13 A schematic structural diagram of a laser cutting device and a slitting and dust collection mechanism provided in an embodiment of the present invention;

[0065] Figure 14 A schematic structural diagram of a main traction mechanism provided in an embodiment of the present invention;

[0066] Figure 15 A schematic structural diagram of a suction belt separation traction mechanism provided in an embodiment of the present invention;

[0067] Figure 16 A schematic structural diagram of a vacuum conveyor belt line provided in an embodiment of the present invention;

[0068] Figure 17 A schematic structural diagram of a high-speed turntable mechanism provided in an embodiment of the present invention;

[0069] Figure 18 A schematic structural diagram of a CCD positioning detection machine provided in an embodiment of the present invention;

[0070] Figure 19 A schematic structural diagram of a transfer mechanism provided in an embodiment of the present invention;

[0071] Figure 20 A schematic structural diagram of a tab laser cutting mechanism provided in an embodiment of the present invention;

[0072] Figure 21 A schematic structural diagram of a laser processing platform provided in an embodiment of the present invention;

[0073] Figure 22 A schematic structural diagram of a vacuum explosion-proof mechanism provided in an embodiment of the present invention;

[0074] Figure 23 This is a structural diagram of a high tension detection mechanism provided by an embodiment of the present invention.

[0075] Description of reference numerals:

[0076] 1. Material roll thickness measuring mechanism; 2. Unwinding mechanism; 3. Unwinding correction mechanism; 4. Anti-static mechanism; 5. Belt splicing platform; 6. Lithium metal tension detection mechanism; 7. High tension detection mechanism; 8. Iron removal mechanism; 9. Travel correction mechanism; 10. Anti-static dust collection mechanism; 11. Intelligent material storage mechanism; 12. Diaphragm winding mechanism; 13. Auxiliary drive mechanism; 14. Electrode laser cutting mechanism; 15. Slitting dust collection mechanism; 16. Main traction mechanism; 17. Suction belt disengagement traction mechanism; 18. Vacuum conveyor belt line; 19. High-speed turntable mechanism; 20. CCD positioning detection mechanism; 21. Transfer mechanism; 22. Tab laser cutting mechanism; 23. Laser processing table; 24. Material waiting platform; 25. Vacuum explosion-proof mechanism;

[0077] 1001, infrared positioning roll thickness measurement base; 1002, infrared positioning roll thickness measurement guide rod; 1003, infrared laser emitter; 1004, infrared laser fixing block; 1005, roll thickness measurement sensor; 1006, roll thickness measurement fixing block; 2001, first adjustment platform; 2002, first deviation correction component; 2003, first power component; 3001, translation component; 3002, non-powered roller deviation correction component; 3003, sensor detection component; 4001, static elimination base; 4002, static elimination bracket; 4003, static elimination device; 5001, second non-powered roller component; 5002, belt pressing component; 5003, belt splicing dust collection component; 6001, first tension roller guide rod; 6002, roller; 6003, Limit block; 6004, first tension detector; 7001, second tension roller guide rod; 7002, over roller; 7003, limit block, 7004, second tension detector; 8001, first iron removal module; 8002, first iron removal fixed plate; 8003, first iron removal fixed frame; 8004, second iron removal module; 8005, second iron removal fixed plate; 8006, second iron removal fixed frame; 9001, frame correction device; 9002, frame correction fixed plate; 9003, frame correction reinforcement rib; 9004, frame correction bottom plate; 1011, second dust removal assembly; 1012, dust removal fixed plate; 1013, dust removal reinforcement rib; 1014, dust removal bottom plate; 1101, third unpowered roller assembly; 11 02, fourth power assembly; 1103, fixing assembly; 1201, second adjustment platform; 1202, second deviation-correcting assembly; 1203, second power assembly; 1301, main drive assembly; 1302, driven assembly; 1303, pole piece adsorption support plate; 1304, fixed frame; 1401, laser base; 1402, laser support rod; 1403, laser fixing block; 1404, laser; 1501, flow guide assembly; 1502, dust cover; 1503, first dust collection assembly; 1601, clamping mechanism; 1602, third drive assembly; 1701, first adsorption hole; 1702, support frame; 1703, support plate; 1801, continuous adsorption vacuum chamber; 1802, intermittent adsorption vacuum chamber chamber; 1803, first dust removal assembly; 1804, conveying frame; 1901, cam indexer; 1902, swing arm assembly; 1903, suction cup assembly; 20001, X-axis moving assembly; 20002, Y-axis moving assembly; 20003, rotation assembly; 20004, CCD assembly; 2101, second suction cup assembly; 2102, third power assembly; 2202, second laser; 2301, second adsorption hole; 2302, processing base plate; 2303, support rod; 2401, adsorption hole; 2402, base plate; 2403, support rod; 2501, vacuum explosion-proof box; 2502, vacuum pipe; 2503, first vacuum adsorption collection pipe; 2504, second vacuum adsorption collection pipe;2505, the third vacuum adsorption collection pipe; 2506, the dust removal waste collection pipe. DETAILED DESCRIPTION

[0078] In view of the shortcomings of the prior art, the inventors of this case, after long-term research and extensive practice, have proposed the technical solution of the present invention. The following will further explain this technical solution, its implementation process and principles.

[0079] The present invention discloses a lithium metal unwinding and film-making system, comprising an unwinding mechanism 2, an unwinding correction mechanism 3, a lithium metal tension detection mechanism 6, a traveling correction mechanism 9, an intelligent material storage mechanism 11, a pole piece laser cutting mechanism 14, a main traction mechanism 16, a pole piece transfer mechanism, a pole piece detection mechanism and a pole tab laser cutting mechanism 22;

[0080] The unwinding mechanism 2 is at least used to unwind the lithium metal strip to provide the lithium metal strip; and can be adjusted in real time according to the deviation of the lithium metal strip;

[0081] The main traction mechanism 16 is at least used to pull the material strip through the unwinding and correcting mechanism 3, the lithium metal tension detection mechanism 6, the traveling and correcting mechanism 9, and the intelligent material storage mechanism 11 in sequence and then enter the electrode laser cutting mechanism 14;

[0082] The unwinding correction mechanism 3 is at least used to monitor whether the first designated part of the material strip unwound by the unwinding mechanism 2 is in the set position, and when the first designated part of the material strip deviates from the first set position, cooperate with the unwinding mechanism 2 to adjust the position of the material roll so that the first designated part of the material strip reaches the first set position.

[0083] The lithium metal tension detection mechanism 6 is at least used to detect the tension of the material strip, and to adjust the working parameters of the unwinding mechanism 2 according to the tension detection result so that the tension of the material strip reaches a set value.

[0084] The traveling deviation correcting mechanism 9 is at least used to detect and adjust the position of the second designated portion of the material belt during traveling, so that the second designated portion of the material belt is maintained at the second set position during traveling.

[0085] The intelligent storage mechanism 11 is used to store at least part of the material strip.

[0086] The pole piece laser cutting mechanism 14 is at least used to cut the received material strip to form pole pieces.

[0087] The pole piece transfer mechanism is at least used to transfer the pole pieces output by the pole piece laser cutting mechanism 14 to the pole piece detection mechanism and the pole tab laser cutting mechanism 22 in sequence.

[0088] The pole piece detection mechanism is at least used to detect the pole piece to determine whether the pole piece has defects.

[0089] The tab laser cutting mechanism 22 is at least used to cut the tabs on the pole pieces.

[0090] On the basis of the above, the unwinding mechanism 2 includes a first adjustment platform 2001, a first correction component 2002 and a first power component 2003; the first correction component 2002 is fixed to the first adjustment platform 2001, and the first power component 2003 is placed at one end of the first correction component 2002.

[0091] In some embodiments, the unwinding correction mechanism 3 includes a translation component 3001, a non-powered roller correction component 3002 and a sensor detection component 3003. The translation component 3001 is provided with a transverse guide rail, and limit blocks are provided at both ends of the guide rail. The non-powered roller correction component 3002 is placed above the transverse guide rail. The non-powered roller correction component 3002 is connected to the unwinding mechanism 2 through a correction connecting rod, and the sensor detection component 3003 is located above the non-powered roller correction component 3002.

[0092] Specifically, such as Figure 1 As shown, a lithium metal unwinding and film-making system includes an unwinding mechanism 2, an unwinding correction mechanism 3, an anti-static mechanism 4, a belt splicing platform 5, a lithium metal tension detection mechanism 6, an iron removal mechanism 8, a traveling correction mechanism 9, an anti-static dust suction mechanism 10, an intelligent material storage mechanism 11, an auxiliary drive mechanism 13, a pole piece laser cutting mechanism 14, a main traction mechanism 16, a suction belt separation traction mechanism 17, a vacuum conveyor belt line 18, a high-speed turntable mechanism 19, a CCD positioning detection mechanism 20, a pole piece laser cutting mechanism 22 and a transfer mechanism 21, which are arranged in sequence according to the transmission direction of the lithium metal material strip. A diaphragm winding mechanism is provided between the intelligent material storage mechanism and the auxiliary drive mechanism; a slitting and dust suction mechanism is provided below the pole piece laser cutting mechanism 14; the film-making equipment also includes a vacuum explosion-proof mechanism; a laser processing table is provided below the pole piece laser cutting mechanism; and a waiting platform is provided on one side of the transfer mechanism.

[0093] The reasons why the lithium metal tension detection mechanism is arranged behind the splicing platform are: on the one hand, the position here is close to the unwinding mechanism. When the lithium metal tension detection mechanism detects tension fluctuations, the unwinding mechanism can provide timely feedback and adjust the tension; on the other hand, when the splicing platform is working, that is, the coil is spliced, the lithium metal tension detection mechanism here can detect the tension between the splicing platform and the auxiliary drive mechanism to ensure the stability of the tension of the equipment.

[0094] The reasons why the static electricity removal mechanism is arranged behind the unwinding and correcting mechanism are as follows: the coil material consists of two layers, metallic lithium and diaphragm. When the coil material is peeled off, the metallic lithium will generate static electricity. The static electricity may cause the metallic lithium material to absorb impurities from the environment and produce tiny particles, thereby affecting the performance and life of the battery. Therefore, static electricity needs to be eliminated after unwinding.

[0095] A second static-elimination mechanism is provided in front of the auxiliary drive mechanism. The second static-elimination mechanism is provided in at least two groups, at least one of which is provided in front of the separation point between the lithium metal and the diaphragm, and at least one of which is provided behind the separation point between the lithium metal and the diaphragm. The reason for this is that in the mechanism before the auxiliary drive mechanism, the coils are both lithium metal and the diaphragm running together. The lithium metal and the diaphragm are separated in front of the auxiliary drive mechanism. The second static-elimination mechanism eliminates static electricity before separation because the coils may generate static electricity after passing through multiple rollers, ensuring a more ideal separation between the lithium metal and the diaphragm. After the separation of the lithium metal and the diaphragm, the second static-elimination mechanism eliminates static electricity on the lithium metal because the lithium metal will inevitably generate static electricity during separation. To ensure the performance and life of the subsequent battery, static electricity elimination is necessary here.

[0096] The reason why the iron removal mechanism 8 is arranged in front of the static dust removal mechanism 10 is to protect the static dust removal mechanism and avoid damage to the static dust removal mechanism caused by fine iron filings and impurities on the surface of the coil. Therefore, the iron removal mechanism is placed in front of the static dust removal mechanism.

[0097] In some embodiments, as Figure 3 As shown, the unwinding mechanism 2 includes a first adjustment platform 2001, a first correction component 2002 is provided below the first adjustment platform 2001, a fixed end of the first correction component 2002 is fixedly connected to one side of the first adjustment platform 2001, and one end of the first correction component is provided with a first power component 2003. This application does not limit the specific structure of the first power component 2003, as long as it can drive the material strip to unwind, specifically, the first power component 2003 includes a motor, a reducer, a motor fixing plate A, a motor fixing plate B, a motor fixing plate C, a driving wheel, and a driven wheel. The motor is installed on the reducer, the reducer is placed on one side of the motor fixing plate B, and the other side of the motor fixing plate B is placed on one side of the motor fixing plate A. The driving wheel is placed on the shaft end of the reducer and on the other side of the motor fixing plate A. The motor fixing plate C is placed at the bottom of the motor fixing plate A, and the driven wheel is placed at the other end of the connecting shaft of the correction component.

[0098] More specifically, the first correction component 2002 includes a pneumatic shaft, a correction motor driver, a connecting shaft, a pneumatic shaft fixing plate, a pneumatic shaft support plate, an adjustment plate and a universal joint. The correction motor driver is placed at the bottom of the first adjustment platform, and the pneumatic shaft fixing plate and the correction motor driver are connected through the adjustment plate. A second guide rail is provided above the first adjustment platform, and limit blocks are provided at both ends of the second guide rail. The pneumatic shaft fixing plate is placed above the second guide rail, and the pneumatic shaft support plate is placed above the pneumatic shaft fixing plate. The pneumatic shaft is fixed to one end of the connecting shaft, and the connecting shaft is fixed to the pneumatic shaft support plate. The universal joint is connected to the other end of the connecting shaft.

[0099] On the basis of the above, if Figure 3 As shown, the unwinding correction mechanism 3 includes a translation component 3001, a guide rail is arranged above the translation component 3001, and an unpowered roller correction component 3002 is arranged above the translation component 3001, and a slider is arranged on the unpowered roller correction component 3002. The unpowered roller correction component 3002 is horizontally slidably connected to the translation component 3001 through the slide rail and the slider. Specifically, the unpowered roller correction component 3002 includes an unpowered roller fixed seat, and two unpowered rollers are rotatably connected to the unpowered roller fixed seat, which are a first unpowered roller and a second unpowered roller. A sensor detection component 3003 is arranged on one side of the unpowered roller correction component 3002, and the sensor detection is used to detect whether the material belt passing through the unpowered roller correction component 3002 is in a set position.

[0100] In some embodiments, the lithium metal unwinding and film making system also includes one or more of a material roll thickness measuring mechanism 1, a static electricity removal mechanism 4, a tape splicing platform 5, a high tension detection mechanism 7, an iron removal mechanism 8, a first dust removal mechanism, a diaphragm winding mechanism 12, an auxiliary drive mechanism 13, and a second dust removal mechanism.

[0101] The roll thickness measuring mechanism 1 is at least used to detect the thickness of the roll provided on the unwinding mechanism 2 .

[0102] The static electricity removal mechanism 4 and the tape splicing platform 5 are sequentially arranged between the unwinding and correcting mechanism 3 and the lithium metal tension detection mechanism 6 . The static electricity removal mechanism 4 is at least used to remove the static charge on the material tape.

[0103] The high tension detection mechanism 7 is arranged on one side of the lithium metal tension detection mechanism 6 and upstream of the traveling correction mechanism 9, and is used to detect the tension of other materials, and is suitable for other material strips with high tension; the main traction mechanism 16 is also used to pull the other material strips through the unwinding correction mechanism 3, the high tension detection mechanism 7, the traveling correction mechanism 9, and the intelligent storage mechanism 11 in sequence and then enter the pole piece laser cutting mechanism 14.

[0104] The iron removal mechanism is arranged between the lithium metal tension detection mechanism 6 and the travel correction mechanism 9, and is used to remove impurity metals on the material strip.

[0105] The diaphragm winding mechanism 12 is arranged between the intelligent material storage mechanism 11 and the electrode laser cutting mechanism 14, and is at least used to separate the metallic lithium in the material strip from the diaphragm and collect the separated diaphragm.

[0106] The auxiliary driving mechanism 13 is arranged between the intelligent material storage mechanism 11 and the pole piece laser cutting mechanism 14 .

[0107] Specifically, in some embodiments, Figure 2 As shown, the coil thickness measuring mechanism 1 is an infrared positioning coil thickness measuring mechanism. Specifically, the infrared positioning coil thickness measuring mechanism includes an infrared positioning coil thickness measuring base 1001, on which is mounted an infrared positioning coil thickness measuring guide rod 1002. A coil thickness measuring fixed block 1006 is mounted on the infrared positioning coil thickness measuring guide rod 1002, and a coil thickness measuring fixed block 1006 is mounted on the coil thickness measuring fixed block 1006. A coil thickness measuring sensor 1005 is mounted on the coil thickness measuring fixed block 1006. The coil thickness measuring sensor 1005 can detect the coil thickness in real time during operation. An infrared laser fixed block 1004 is mounted on the infrared positioning coil thickness measuring guide rod 1002, and an infrared laser emitter 1003 is mounted on the infrared laser fixed block. The infrared laser emitter 1003 emits red light to facilitate coil positioning.

[0108] Before the device is operated, the coil fixing position is determined by manually adjusting the position of the infrared laser fixing block 1004. Before the device is operated, the staff needs to load the coil into the rewinding and unwinding mechanism. Through the infrared laser positioning mechanism, the staff can quickly and time-savingly install the coil to the required position.

[0109] While the material pulling axis speed is constant, the coil radius decreases during the unwinding process. To maintain a constant linear speed, the motor must be controlled with variable speed. The core of this variable speed control is to monitor the real-time radius change of the unwinding coil. Therefore, a coil diameter measurement mechanism is required at the unwinding and rewinding device to monitor the real-time radius change of the coil. While the device is operating, coil thickness sensor 1005 operates continuously to monitor the coil thickness.

[0110] In some embodiments, as Figure 4As shown, the static electricity removal mechanism 4 includes a static electricity removal seat, and the static electricity removal seat includes a static electricity removal base 4001, and a static electricity removal bracket 4002 is fixedly connected to the static electricity removal base 4001, and a static electricity removal device 4003 is provided on the static electricity removal bracket 4002; when working, the static electricity removal device 4003 continuously and uninterruptedly emits plasma wind to the surface of the roll material, which is used to eliminate static electricity attached to the surface of the roll material during the operation of the roll material.

[0111] In some embodiments, as Figure 5 As shown, the tape splicing platform 5 includes a fixed box, to which a second unpowered roller assembly 5001 is rotatably connected. A tape pressing assembly 5002 is provided on one side of the fixed box. The tape pressing assembly 5002 will press the tape when it is necessary to splice the tape, and will lift and release the tape after the splicing is completed. Specifically, the tape pressing assembly 5002 can be a cylinder tape pressing assembly or an electrode wire rod tape pressing assembly. In this embodiment, the tape pressing assembly 5002 uses a cylinder tape pressing assembly, and at least two groups of cylinder tape pressing assemblies are provided. The cylinder tape pressing assembly includes a pressure rod and a cylinder that drives the pressure rod to move up and down. The fixed end of the cylinder is fixed in the fixed box, and the driving end of the cylinder is fixedly connected to the pressure rod. Under the drive of the cylinder, the pressure rod can be pressed down to be flush with the upper end surface of the fixed box. A tape splicing dust collection assembly 5003 is provided in the fixed box, and the tape splicing dust collection assembly 5003 is used to remove dust from the tape.

[0112] Because the thickness of a single layer of lithium battery coil is extremely small, measured in microns, the coil tension constantly fluctuates during automated operation, and there's the potential for sudden increases or decreases, posing a risk of coil breakage. If a coil breaks, the ends can be glued together on the splicing platform. Furthermore, different coils have varying total lengths. If one coil is exhausted but the others are not, the remaining coil can be cut on the splicing platform, and a new coil can be inserted and glued together.

[0113] In some embodiments, the high tension detection mechanism 7 includes a second tension roller guide rod 7001, a roller 7002, a limit block 7003 and a second tension detector 7004, the second tension roller guide rod 7001 is placed in the roller 7002, the limit block 7003 is placed at one end of the roller 7002 and at one end of the second tension roller guide rod 7001, and the other end of the second tension roller guide rod 7001 is placed in the fixing hole of the second tension detector 7004.

[0114] In some embodiments, the iron removal mechanism 8 includes two multi-stage pull-out iron removal devices arranged opposite to each other, specifically, Figure 7As shown, the iron removal mechanism 8 includes a first iron removal module 8001 and a second iron removal module 8004, and there is a gap between the first iron removal module 8001 and the second iron removal module 8004 for the feeding belt to pass through; one side of the first iron removal module 8001 is fixedly connected with a first iron removal fixing assembly, and the first iron removal fixing assembly includes a first iron removal fixing plate 8002 and a first iron removal fixing frame 8003, and the first iron removal module 8001 is fixed on the first iron removal fixing plate 8002, and the first iron removal fixing plate 8002 is fixed in the first iron removal fixing frame 8003; one side of the second iron removal module 8004 is provided with a second iron removal fixing assembly, and the second iron removal fixing assembly includes a second iron removal fixing plate 8005 and a second iron removal fixing frame 8006, and the second iron removal module 8004 is fixed on the second iron removal fixing plate 8005, and the second iron removal fixing plate 8005 is fixed on the second iron removal fixing frame 8006.

[0115] The presence of iron filings and impurities will affect the electrochemical properties of the battery, leading to problems such as decreased battery capacity and shortened cycle life. The iron removal mechanism of the present invention can remove iron filings and impurities during the production process of lithium batteries, thereby improving the performance and reliability of the battery. At the same time, the iron removal mechanism can ensure the normal operation of production equipment during the production process of new energy lithium batteries. During the production process, iron filings and impurities will be deposited inside the production equipment, causing equipment failure and damage. The use of an iron removal device can avoid the occurrence of these problems, ensuring the normal operation of production equipment and improving production efficiency. Furthermore, the iron removal mechanism can improve production efficiency and reduce costs during the production process of new energy lithium batteries. The use of an iron removal device can reduce downtime and maintenance costs during the production process, improve production efficiency and reduce production costs. In addition, the use of an iron removal device can reduce the scrap rate and improve product quality and market competitiveness.

[0116] In some embodiments, as Figure 6 As shown, the lithium metal tension detection mechanism 6 includes a first tension detector 6004, which is provided with a first tension roller guide rod 6001. The outer surface of the first tension roller guide rod 6001 is sheathed with a roller 6002. A limit block 6003 is provided at the end of the first tension roller guide rod 6001 away from the first tension detector 6004, and the limit block 6003 is located at the end of the roller 6002 away from the first tension detector 6004. The working principle is: the lithium metal strip passes above and contacts the roller 6002, the lithium metal strip is stretched, and the roller 6002 is subjected to pressure. The first tension detector 6004 can detect the corresponding pressure and feed it back to the unwinding mechanism 2, causing the unwinding mechanism 2 to make corresponding adjustments to adjust the tension of the lithium metal strip to the set value.

[0117] On the basis of the above, if Figure 8 As shown, the traveling correction mechanism 9 includes a frame correction fixing frame and a frame correction component arranged on the frame correction fixing frame, the frame correction component includes a connecting seat, at least two unpowered rollers are rotatably connected to the connecting seat, and a correction sensor is also provided on the connecting seat. A second drive component for driving the connecting seat to move is provided on one side of the connecting seat, and the second drive component can be a cylinder or a screw module. During operation, the correction sensor of the frame correction device 9001 detects whether the edge of the material strip is in a set position. If it is not in the set position, the second drive component drives the connecting seat to move and thereby drives the unpowered roller to move for correction. The frame correction fixing frame includes a frame correction bottom plate 9004, a frame correction fixing plate 9002 and a frame correction reinforcement rib 9003 arranged between the frame correction bottom plate 9004 and the frame correction fixing plate 9002.

[0118] In some embodiments, the first dust removal mechanism includes a multifunctional static dust removal mechanism 10, specifically, Figure 9 As shown, the electrostatic dust removal mechanism 10 includes a dust removal fixed seat and a second dust removal component 1011 arranged on the dust removal fixed seat, the dust removal fixed seat includes a dust removal base plate 1014 and a dust removal fixed plate 1012 fixedly connected to the dust removal base plate 1014, and a dust removal reinforcement rib 1013 is arranged between the dust removal base plate 1014 and the dust removal fixed plate 1012.

[0119] In some embodiments, as Figure 10 As shown, the intelligent material storage mechanism 11 includes a fixed component 1103, on which a fourth power component 1102 is provided. The fourth power component 1102 is used to drive the third unpowered roller component 1101 to perform linear motion. The fourth power component 1102 can be a cylinder or a screw module. The fixed end of the fourth power component 1102 is fixed to the fixed component 1103, and the driving end of the fourth power component 1102 is fixedly connected to the third unpowered roller component 1101. The third unpowered roller component 1101 moves linearly under the drive of the fourth power component 1102. During operation, the material belt passes through the third unpowered roller component 1101, and the third unpowered roller component 1101 performs linear motion under the drive of the fourth power component 1102 to realize intelligent material storage.

[0120] Intelligent accumulators can improve the efficiency of production equipment during the production of new energy lithium batteries. During production, the electrode cutting equipment requires frequent starts and stops. Without an intelligent accumulator, the unwinding mechanism would need to start and stop frequently in sync with the cutting equipment. This significantly hinders unwinding and ensures precise tension control throughout the coil. With an intelligent accumulator, the unwinding mechanism can unwind continuously, ensuring precise tension control and improving equipment efficiency.

[0121] Working method:

[0122] Stocking process: When the third unpowered roller assembly of the intelligent stocker is at its left limit position, the unwinding mechanism continues to unwind, and the third unpowered roller assembly begins to move from the left limit position to the right limit position. During this movement, the rear-end auxiliary drive mechanism, laser cutting device, slitting and dust collection mechanism, main traction mechanism, and suction belt are separated from the traction mechanism to work, and the material belt between the auxiliary drive mechanism and the intelligent stocker does not move. When the third unpowered roller assembly reaches the right limit position, stocking is complete, and the aforementioned rear-end equipment has completed film production and electrode placement. This process is the stocking process of the intelligent stocker.

[0123] Unloading process: The third unpowered roller assembly of the intelligent accumulator is at its right limit position. It begins to move from the right limit position to the left limit position. At this point, the rear auxiliary drive mechanism, slitting and dust collection mechanism, and main traction mechanism begin to operate, grabbing the material strip behind the auxiliary drive mechanism and moving it to the required length. This process is the unloading process of the intelligent accumulator.

[0124] On the basis of the above, if Figure 13 As shown, the pole piece laser cutting mechanism 14 includes a laser fixing seat, and the laser fixing seat includes a laser base 1401. A laser support rod 1402 is fixedly connected to the laser base 1401, and a laser fixing block 1403 is connected to the laser support rod 1402. A laser 1404 is provided on the laser fixing block 1403; the laser 1404 is set toward the pole piece and emits ultrashort pulse ultraviolet light to the pole piece to cut the pole piece.

[0125] On the basis of the above, if Figure 14 As shown, the main traction mechanism 16 is a mechanism that can fix the pole piece and drive the pole piece to move. The main traction mechanism 16 can be a mechanism that clamps the pole piece and drives the pole piece to move, or it can be a mechanism that sucks the pole piece with a suction cup and drives the pole piece to move. Specifically, the main traction mechanism 16 includes a clamping mechanism 1601, and a third drive component 1602 for driving the clamping mechanism 1601 to move is provided on one side of the clamping mechanism 1601. The clamping component includes two clamping jaws arranged opposite to each other in an upper and lower direction, a clamping jaw cylinder that drives the connecting clamping jaws to open or close relative to each other, and a connecting arm for connecting the clamping jaw cylinder, and the end of the connecting arm away from the clamping jaw cylinder is connected to the third drive component 1602. The third drive component 1602 is a mechanism that drives the clamping mechanism 1601 to perform linear motion. The third drive component 1602 can be a servo module, a linear cylinder, or a combination of a motor and a screw.

[0126] In some embodiments, since the lithium metal strip is attached with a diaphragm before processing, the diaphragm needs to be separated from the strip during processing. On the one hand, this is to prevent the diaphragm from being peeled off from the strip from being messy, and on the other hand, the diaphragm can be used to drive the strip to move. Figure 11 As shown, the diaphragm winding mechanism includes a second adjustment platform 1201, a winding assembly is provided on the second adjustment platform 1201, a second correction assembly 1202 is provided on one side of the second adjustment platform 1201, the fixed end of the second correction assembly 1202 is fixedly connected to the second adjustment platform 1201, the driving end of the second correction assembly 1202 is connected to the winding assembly and can drive the winding assembly to move, and one end of the winding assembly is provided with a second power assembly 1203 for driving the winding assembly to wind, the second power assembly 1203 is used to drive the winding assembly to rotate along its own axis, the second power assembly 1203 can be a motor, or a motor and a reducer. In this embodiment, the second power assembly 1203 includes a motor and a reduction motor, and the reduction motor is connected to the winding assembly through a synchronous wheel and a synchronous belt.

[0127] In some embodiments, the second dust removal mechanism includes a cutting dust collection mechanism 15, such as Figure 13 As shown, the slitting and dust collection mechanism 15 includes a dust collection hood 1502 , a first dust collection component 1503 is provided below the dust collection hood 1502 , and a flow guide component 1501 is provided above the dust collection hood 1502 .

[0128] In some embodiments, as Figure 12 As shown, the auxiliary drive mechanism 13 includes a fixed frame 1304, on which a main drive component 1301 and a driven component 1302 are provided. The main drive component 1301 can be a driving roller, a driving wheel, etc., and the driven component 1302 can be a driven roller, a driven wheel, etc. In this embodiment, the auxiliary drive mechanism 13 includes a fixed frame 1304, on which a driving wheel and a driven wheel are rotatably connected. There is a gap between the driving wheel and the driven wheel, and the main drive component 1301 can be a driving roller, a driving wheel, etc., and the driven component 1302 can be a driven roller, a driven wheel, etc. A pole piece adsorption support plate 1303 for adsorbing the material strip is provided between the driving component 1301 and the driven component 1302. A clamping component is provided on one side of the main driving component 1301 or the driven component 1302. The clamping component is used to reduce the gap between the main driving component 1301 and the driven component 1302, so that the main driving component 1301 and the driven component 1302 cooperate to drive the material strip to move. The clamping component can be a cylinder or a linear servo module. The clamping component in this embodiment includes a cylinder.

[0129] On the basis of the above, the electrode transfer mechanism includes a suction belt separation traction mechanism 17, a vacuum conveying belt line 18, a high-speed turntable mechanism 19 and a transfer mechanism 21, which are arranged in sequence according to the transmission direction of the lithium metal electrode.

[0130] In some embodiments, as Figure 15 As shown, the suction belt separation traction mechanism 17 includes a support frame 1702, on which an adsorption plate and a support plate 1703 are provided. The support plate 1703 is arranged above the adsorption plate. The end of the adsorption plate away from the support plate is provided with a plurality of first adsorption holes 1701, and the end with the plurality of first adsorption holes is provided on the side close to the main traction mechanism. During operation, when the main traction mechanism moves the cut electrode to the set position, the plurality of first adsorption holes adsorb the tail of the electrode, and then the clamping claw assembly of the main traction mechanism continues to move in the direction of travel of the electrode, which plays the role of separating the electrode from the main traction mechanism, and at the same time, the electrode naturally falls onto the vacuum conveying belt line below.

[0131] Since the electrode is sucked or clamped and dragged by the main driving mechanism, if there is no suction belt detached from the traction mechanism, the main driving mechanism will directly drag the electrode to the vacuum conveyor belt, which will cause the tail of the electrode to contact the vacuum conveyor belt first. The vacuum conveyor belt will drive the tail of the electrode to move in the transportation direction, causing the electrode to bend and wrinkle, and ultimately making the electrode unusable. If there is a suction belt detached from the adsorption hole of the traction mechanism and adsorbed the tail of the electrode, at this time the main traction mechanism releases the electrode, and the front end of the electrode contacts the vacuum conveyor belt first, then the electrode will be prevented from bending and wrinkling, thus ensuring the integrity of the electrode.

[0132] Specifically, such as Figure 16 As shown, the vacuum conveyor belt line 18 is a vacuum conveyor belt line; the vacuum conveyor belt line includes a conveyor frame 1804 and a conveyor belt mounted on the conveyor frame 1804. A continuous vacuum chamber is disposed within one end of the conveyor frame 1804, and an intermittent vacuum chamber is disposed within the other end of the conveyor frame 1804. A first dust removal assembly 1803 for removing impurities from the conveyor belt is disposed on one side of the intermittent vacuum chamber. During operation, the vacuum conveyor belt line continuously evacuates the vacuum. When the electrode naturally falls onto the continuous adsorption vacuum chamber 1801 of the vacuum conveyor belt line, the electrode is adsorbed onto the conveyor belt. The conveyor belt then moves the electrode to the top of the intermittent adsorption vacuum chamber 1802, where it awaits capture by the high-speed turntable mechanism. During its movement, the conveyor belt continuously passes through the dust removal device, which removes impurities adhering to the surface of the conveyor belt.

[0133] In some embodiments, the high-speed turntable mechanism 19 includes a cam indexer 1901, a suction cup device 1903, and a swing arm device 1902. The suction cup device is placed at one end of the swing arm device, and the other end of the swing arm device is placed above the cam indexer. During operation, the cam indexer 1901 drives the swing arm device 1902 to move, thereby driving the suction cup device 1903 to move the pole piece from above the intermittent adsorption vacuum chamber 1802 of the vacuum conveyor belt line 18 to above the CCD positioning detection mechanism 20. Compared to the manipulator, the advantages of using a cam indexer in this embodiment include its simple and compact structure, consisting of relatively few components, and easy to design and manufacture; its movement is accurate and reliable, the cam can provide precise movement, and the cam can convert continuous rotational motion into reciprocating linear motion, which can realize complex motion patterns.

[0134] In some embodiments, since it is necessary to move the pole piece on the CCD positioning detection mechanism 20 to the laser processing table 23, and at the same time, it is necessary to move the pole piece on the laser processing table 23 to the material waiting platform 24, the transfer mechanism 21 is set as a duplex displacement mechanism. Figure 19 As shown, the duplex displacement loading mechanism includes a fixed plate, on which two sets of second suction cup assemblies 2101 are disposed. A third power assembly 2102 for driving the fixed plate is disposed on one side of the fixed plate. The third power assembly 2102 can be a cylinder or a screw module. In this embodiment, the third power assembly 2102 is a screw module. Configuring the transfer mechanism 21 as a duplex displacement loading mechanism not only saves components and reduces costs, but also synchronizes the two transfers, saving transfer time.

[0135] On the basis of the above, the electrode detection mechanism includes a CCD positioning detection mechanism 20, such as Figure 18 As shown, the CCD positioning detection mechanism 20 includes a detection platform, one side of which is provided with an X-axis moving component 20001 for driving the detection platform to move along the X-axis direction, a Y-axis moving component 20002 for driving the detection platform to move along the Y-axis, a rotating component 20003 for driving the detection platform to rotate, and a CCD component 20004 for detecting whether there are defects in the electrode. During operation, when the high-speed turntable mechanism 19 moves the electrode to the top of the detection platform, the CCD component 20004 detects whether there are defects in the electrode, and accurately positions the electrode by simultaneously moving the X-axis moving component 20001, the Y-axis moving component 20002, and the rotating component 20003, so that the electrode reaches the required position.

[0136] In some embodiments, the tab laser cutting mechanism 22 includes a second laser 2202, which is set toward the laser processing table 23. The second laser 2202 emits ultrashort pulse ultraviolet light toward the pole piece to cut the pole piece and cut the shape of the tab on the pole piece.

[0137] In some embodiments, as Figure 21 As shown, the laser processing platform 23 includes a processing base plate 2302 and a plurality of support rods 2303 arranged below the processing base plate 2302. The processing base plate 2302 is fixedly connected to the support rods 2303. The processing base plate 2302 is provided with a plurality of second adsorption holes 2301.

[0138] On the basis of the above, the lithium metal unwinding and film-making system further includes a material waiting platform 24 and / or a vacuum explosion-proof mechanism 25.

[0139] Specifically, the material waiting platform 24 includes a plurality of adsorption holes 2401 , a bottom plate 2402 and a support rod 2403 . The bottom plate 2402 is fixed to the support rod 2403 , and the plurality of adsorption holes 2401 are placed above the bottom plate 2402 .

[0140] Specifically, such as Figure 22 As shown, the vacuum explosion-proof mechanism 25 includes a vacuum explosion-proof box 2501, a vacuum pipe 2502, a vacuum adsorption collection pipe and a dust removal waste collection pipe 2506. One end of the vacuum pipe 2502 is connected to the vacuum explosion-proof box 2501, and the other end is connected to the dust removal waste collection pipe 2506. The vacuum adsorption collection pipe includes a first vacuum adsorption collection pipe 2503, a second vacuum adsorption collection pipe 2504 and a third vacuum adsorption collection pipe 2505. The first dust removal waste pipe is provided at the position of the connecting platform, and the second dust removal waste pipe is provided at the cutting dust collection mechanism 15. Two dust removal waste pipes, a first vacuum adsorption pipe is provided at the auxiliary driving mechanism 13, a second vacuum adsorption pipe is provided at the suction belt disengagement traction mechanism 17, and a third vacuum adsorption pipe is provided at the vacuum conveying belt line 18. The first dust removal waste pipe, the first vacuum adsorption pipe and the second vacuum adsorption pipe are all connected to the third vacuum adsorption collection pipe 2505; the second dust removal waste pipe is connected to the dust removal waste collection pipe 2506; the third vacuum adsorption pipe is connected to the first vacuum adsorption collection pipe 2503 and the second vacuum adsorption collection pipe 2504.

[0141] It should be understood that the above embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent variations or modifications made in accordance with the spirit and substance of the present invention are intended to be encompassed within the scope of protection of the present invention.

Claims

1. A lithium metal unwinding and film making system, characterized in that: It includes an unwinding mechanism (2), an unwinding correction mechanism (3), a lithium metal tension detection mechanism (6), a large tension detection mechanism (7), a traveling correction mechanism (9), an intelligent material storage mechanism (11), a pole piece laser cutting mechanism (14), a main traction mechanism (16), a pole piece transfer mechanism and a pole tab laser cutting mechanism (22); Wherein, the unwinding mechanism (2) is at least used for unwinding the metal lithium strip material coil to provide the metal lithium strip; The main traction mechanism (16) is at least used to pull the material strip through the unwinding and correcting mechanism (3), the lithium metal tension detection mechanism (6), the traveling and correcting mechanism (9), and the intelligent material storage mechanism (11) in sequence, and then enter the pole piece laser cutting mechanism (14); The unwinding deviation correction mechanism (3) is at least used to monitor whether the first designated portion of the material strip unwound by the unwinding mechanism (2) is at a set position, and when the first designated portion of the material strip deviates from the first set position, cooperate with the unwinding mechanism (2) to adjust the position of the material roll so that the first designated portion of the material strip reaches the first set position; The lithium metal tension detection mechanism (6) is at least used to detect the tension of the material strip, and to adjust the working parameters of the unwinding mechanism (2) according to the tension detection result so that the tension of the material strip reaches a set value; The traveling deviation correcting mechanism (9) is at least used to detect and adjust the position of the second designated portion of the material strip during traveling, so that the second designated portion of the material strip is maintained at the second set position during traveling; The intelligent material storage mechanism (11) is used to store at least part of the material strip; The pole piece laser cutting mechanism (14) is at least used for cutting the received material strip to form a pole piece; The pole piece transfer mechanism is at least used to transfer the pole piece output by the pole piece laser cutting mechanism (14) to the pole tab laser cutting mechanism (22); The tab laser cutting mechanism (22) is at least used for cutting the tab on the pole piece; The high tension detection mechanism (7) is arranged on one side of the lithium metal tension detection mechanism (6) and upstream of the traveling correction mechanism (9), and is at least used to detect the tension of other materials. The main traction mechanism (16) is also used to pull the material strip of other materials through the unwinding correction mechanism (3), the high tension detection mechanism (7), the traveling correction mechanism (9), and the intelligent storage mechanism (11) in sequence and then enter the pole piece laser cutting mechanism (14).

2. The lithium metal unwinding and film-making system according to claim 1, characterized in that: The unwinding mechanism (2) comprises a first adjustment platform (2001), a first deviation-correcting component (2002) and a first power component (2003); the first deviation-correcting component (2002) is fixed to the first adjustment platform (2001), and the first power component (2003) is placed at one end of the first deviation-correcting component (2002); And / or, the unwinding correction mechanism (3) comprises a translation component (3001), a non-powered roller correction component (3002) and a sensor detection component (3003), the translation component (3001) is provided with a transverse guide rail, and limit blocks are provided at both ends of the guide rail, the non-powered roller correction component (3002) is placed above the transverse guide rail, the non-powered roller correction component (3002) is connected to the unwinding mechanism (2) via a correction connecting rod, and the sensor detection component (3003) is located above the non-powered roller correction component (3002).

3. The lithium metal unwinding and film-making system according to claim 2, characterized in that: The first correction component (2002) comprises an air-expanding shaft, a correction motor driver, a connecting shaft, an air-expanding shaft fixing plate, an air-expanding shaft support plate, an adjustment plate and a universal joint, the correction motor driver is placed at the bottom of the first adjustment platform, the air-expanding shaft fixing plate and the correction motor driver are connected via the adjustment plate, a second guide rail is provided above the first adjustment platform, limit blocks are provided at both ends of the second guide rail, the air-expanding shaft fixing plate is placed above the second guide rail, the air-expanding shaft support plate is placed above the air-expanding shaft fixing plate, the air-expanding shaft is fixed to one end of the connecting shaft, the connecting shaft is fixed to the air-expanding shaft support plate, and the universal joint is connected to the other end of the connecting shaft; And / or, the first power component (2003) includes a motor, a reducer, a motor fixing plate A, a motor fixing plate B, a motor fixing plate C, a driving wheel, and a driven wheel, the motor is installed on the reducer, the reducer is placed on one side of the motor fixing plate B, the other side of the motor fixing plate B is placed on one side of the motor fixing plate A, the driving wheel is placed at the shaft end of the reducer and on the other side of the motor fixing plate A, the motor fixing plate C is placed at the bottom of the motor fixing plate A, and the driven wheel is placed at the other end of the connecting shaft of the correction component.

4. The lithium metal unwinding and film-making system according to claim 1, characterized in that: The lithium metal unwinding and film-making system further comprises one or more of a material roll thickness measuring mechanism (1), a static electricity removal mechanism (4), a tape splicing platform (5), an iron removal mechanism (8), a first dust removal mechanism, a diaphragm winding mechanism (12), an auxiliary driving mechanism (13), and a second dust removal mechanism; Wherein, the material roll thickness measuring mechanism (1) is at least used to detect the thickness of the material roll arranged on the unwinding mechanism (2); The static electricity removal mechanism (4) and the tape splicing platform (5) are sequentially arranged between the unwinding and correcting mechanism (3) and the lithium metal tension detection mechanism (6), and the static electricity removal mechanism (4) is at least used to remove static electricity on the material tape; The iron removal mechanism (8) is arranged between the lithium metal tension detection mechanism (6) and the travel correction mechanism (9) and is used to remove impurity metal on the material strip; The diaphragm winding mechanism (12) is arranged between the intelligent material storage mechanism (11) and the electrode laser cutting mechanism (14), and is used at least to separate the metallic lithium in the material strip from the diaphragm and to collect the separated diaphragm; The auxiliary drive mechanism (13) is arranged between the intelligent material storage mechanism (11) and the pole piece laser cutting mechanism (14).

5. The lithium metal unwinding and film-making system according to claim 4, characterized in that: The roll thickness measuring mechanism (1) is an infrared positioning roll thickness measuring mechanism, and comprises an infrared laser emitter (1003), a roll thickness measuring sensor (1005), an infrared positioning roll thickness measuring base (1001), an infrared positioning roll thickness measuring guide rod (1002), an infrared laser fixing block (1004), and a roll thickness measuring fixing block (1006). The infrared positioning roll thickness measuring guide rod (1002) is fixed to the infrared positioning roll thickness measuring base (1001), the infrared laser fixing block (1004) and the roll thickness measuring fixing block (1006) are both fixed to the infrared positioning roll thickness measuring guide rod (1002), the infrared laser emitter (1003) is fixed to the infrared laser fixing block (1004), and the infrared laser emitter (1003) emits red light to facilitate roll material positioning. The roll thickness measuring sensor (1005) is fixed to the roll thickness measuring fixing block (1006), and the roll thickness measuring sensor (1005) detects the thickness of the roll material in real time during the operation of the device.

6. The lithium metal unwinding and film-making system according to claim 4, characterized in that: The static electricity removal mechanism (4) comprises a static electricity removal base (4001), a static electricity removal bracket (4002) and a static electricity remover (4003), wherein the static electricity remover (4003) is placed on one side of the static electricity removal bracket (4002), and one end of the static electricity removal bracket (4002) is placed on one side of the static electricity removal base (4001); And / or, the belt splicing platform (5) comprises an unpowered roller assembly (5001), a cylinder belt pressing assembly (5002) and a belt splicing dust suction device (5003), wherein the unpowered roller assembly (5001) is placed on one side of the cylinder belt pressing assembly (5002), and the belt splicing dust suction device (5003) is placed in the middle of the cylinder belt pressing assembly (5002); And / or, the high tension detection mechanism (7) comprises a second tension roller guide rod (7001), a passing roller (7002), a limit block (7003) and a second tension detector (7004), wherein the second tension roller guide rod (7001) is placed in the passing roller (7002), the limit block (7003) is placed at one end of the passing roller (7002) and at one end of the second tension roller guide rod (7001), and the other end of the second tension roller guide rod (7001) is placed in a fixing hole of the second tension detector (7004).

7. The lithium metal unwinding and film-making system according to claim 4, characterized in that: The iron removal mechanism (8) comprises two multi-stage pull-out iron removal devices arranged opposite to each other, the pull-out iron removal device comprises an iron removal module, one side of the iron removal module is provided with an iron removal fixing assembly, the iron removal fixing assembly comprises an iron removal fixing plate and an iron removal fixing frame, the iron removal module is fixed on the iron removal fixing plate, and the iron removal fixing plate is provided on the iron removal fixing frame; And / or, the first dust removal mechanism comprises a multifunctional static-static dust collection mechanism (10), the static-static dust collection mechanism (10) comprises a dust removal fixing seat and a second dust removal assembly (1011) arranged on the dust removal fixing seat, the dust removal fixing seat comprises a dust removal base plate (1014) and a dust removal fixing plate (1012) fixedly connected to the dust removal base plate (1014), and a dust removal reinforcement rib (1013) is arranged between the dust removal base plate (1014) and the dust removal fixing plate (1012).

8. The lithium metal unwinding and film-making system according to claim 4, characterized in that: The intelligent material storage mechanism (11) comprises a fixed component, a fourth power component is provided on the fixed component, a fixed end of the fourth power component is fixed on the fixed component, a driving end of the fourth power component is fixedly connected to a third unpowered roller component, and the third unpowered roller component moves linearly under the drive of the fourth power component; And / or, the diaphragm winding mechanism (12) includes a second adjustment platform, a winding assembly is provided on the second adjustment platform, a second deviation-correcting assembly is provided on one side of the second adjustment platform, a fixed end of the second deviation-correcting assembly is fixedly connected to the second adjustment platform, a driving end of the second deviation-correcting assembly is connected to the winding assembly and can drive the winding assembly to move, and a second power assembly for driving the winding assembly to rewind is provided at one end of the winding assembly; And / or, the second dust removal mechanism comprises a split dust collection mechanism (15), the split dust collection mechanism comprises a dust collection hood, a first dust collection component is provided on one side of the dust collection hood, and a flow guide component is provided on a side of the dust collection hood away from the first dust collection component; And / or, the auxiliary drive mechanism (13) includes a fixed frame, a main drive component and a driven component are provided on the fixed frame, a gap is provided between the main drive component and the driven component, and an adsorption support plate for adsorbing the material belt is provided between the main drive component and the driven component, and a clamping component is provided on one side of the main drive component or the driven component, and the clamping component is used to reduce the gap between the main drive component and the driven component, so that the main drive component and the driven component cooperate to drive the material belt to move.

9. The lithium metal unwinding and film-making system according to claim 1, characterized in that: The electrode transfer mechanism comprises a suction belt separation traction mechanism (17), a vacuum conveying belt line (18), a high-speed turntable mechanism (19), and a transfer mechanism (21), which are sequentially arranged according to the transmission direction of the lithium metal electrode.

10. The lithium metal unwinding and film-making system according to claim 9, characterized in that: The suction belt separation traction mechanism includes a support frame, on which an adsorption plate and a supporting plate are provided, the supporting plate is arranged above the adsorption plate, and a plurality of first adsorption holes are provided at one end of the adsorption plate away from the supporting plate; And / or, the vacuum conveyor belt line includes a conveyor frame and a conveyor belt arranged on the conveyor frame, a continuous vacuum chamber is arranged inside one end of the conveyor frame, and an intermittent vacuum chamber is arranged inside the other end of the conveyor frame; And / or, the high-speed turntable mechanism (19) includes a cam indexer, a suction cup device and a swing arm device, the suction cup device is placed at one end of the swing arm device, and the other end of the swing arm device is placed above the cam indexer; And / or, the transfer mechanism (21) comprises a suction cup assembly and a drive assembly, and suction cup assemblies are respectively provided at both ends of the drive assembly.

11. The lithium metal unwinding and film-making system according to claim 1, characterized in that: The lithium metal unwinding and sheeting system further includes a pole piece detection mechanism, which is arranged between the pole piece transfer mechanism and the pole tab laser cutting mechanism (22); And / or, the pole piece detection mechanism includes a CCD positioning detection mechanism (20), the CCD positioning detection mechanism includes a detection platform, and one side of the detection platform is provided with an X-axis moving component for driving the detection platform to move along the X-axis direction, a Y-axis moving component for driving the detection platform to move along the Y-axis, a rotating component for driving the detection platform to rotate, and a CCD component for detecting whether the pole piece has defects; And / or, the lithium metal unwinding and film-making system further includes a material waiting platform (24) and / or a vacuum explosion-proof mechanism (25); And / or, the material-waiting platform (24) comprises a plurality of adsorption holes (2401), a bottom plate (2402) and a support rod (2403), the bottom plate (2402) is fixed to the support rod (2403), and the plurality of adsorption holes (2401) are placed above the bottom plate (2402); And / or, the vacuum explosion-proof mechanism (25) comprises a vacuum explosion-proof box, a vacuum pipe, a vacuum adsorption collection pipe and a dust removal waste collection pipe, one end of the vacuum pipe is connected to the vacuum explosion-proof box, the dust removal waste collection pipe is connected to the end of the vacuum pipe away from the vacuum explosion-proof box, a plurality of vacuum adsorption collection pipes are provided, and the plurality of vacuum adsorption collection pipes are connected to the vacuum pipe.

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