Double-track linear production line for solid-state battery tabs

Abstract

The utility model relates to a double-track linear production line of a solid-state battery tab, which is sequentially provided with a discharging deviation rectifying device, a leveling guide preheating device, a glue pulling and sticking device, a hot pressing device, at least one internal heating device, a high-frequency device, a cold pressing device, a shaping device, a material pulling device, a material pressing device, a cutting device and a chamfering device from front to back, the discharging deviation rectifying device adopts multi-track discharging and comprises a discharging assembly and a guiding assembly, the discharging assembly is independently arranged on the front side of the guiding assembly, the guiding assembly is arranged on the mounting platform, a rubber dividing and cutting device is arranged between the internal heating device and the high-frequency device, and a double-piece positioning device is arranged between the cutting device and the chamfering device. According to the utility model, two metal belts can be discharged and guided at the same time, the metal belt sharing the adhesive tape is divided and cut at the adhesive dividing and cutting station, and meanwhile, the redundant adhesive shoulder of the tab with the adhesive is cut off; and the two plate-type tabs are initially positioned at the same time before chamfering, so that the chamfering precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrode processing technology, specifically to a dual-track linear production line for solid-state battery electrodes. Background Technology

[0002] Currently, most electrode production lines are single-line production lines. They consist of a single metal strip that is glued, heated multiple times, cut into individual plate-shaped electrodes, and then chamfered to complete the automated production of electrodes. For example, there is a linear production line for power electrodes with patent number CN202122824474.6. The production mode of this type of production line is that one strip of material produces one electrode. The average production cycle of a single electrode is more than 7 seconds. The cost of a single piece of equipment is high, and the production cycle time is long, making it difficult to adapt to the current market. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dual-track linear production line for solid-state battery tabs. It uses mechanical damping to control tension and can simultaneously feed and guide two metal strips. At the glue-separating and cutting station, the metal strips sharing the same adhesive strip are separated, cutting the tab adhesive on the two metal strips in the middle to form two independent adhesive-coated metal strips. Simultaneously, excess adhesive on the tabs is cut off, serving as waste adhesive and ensuring the strip dimensions, preparing for subsequent automated chamfering. After being cut into plate-shaped tabs, the two plate-shaped tabs are initially positioned before chamfering, reducing processing errors. The tab production cycle is increased from 7 seconds per piece to 7 seconds for two pieces, improving processing efficiency.

[0004] The purpose of this utility model is achieved as follows:

[0005] A dual-track linear production line for solid-state battery tabs includes, from front to back, a feeding and correction device, a leveling and guiding preheating device, a glue-pulling and applying device, a hot pressing device, at least one internal heating device, a high-frequency device, a cold pressing device, a shaping device, a feeding device, a pressing device, a cutting device, and a chamfering device. The feeding and correction device employs multi-track feeding and includes a feeding assembly and a guiding assembly. The feeding assembly is independently located in front of the guiding assembly, which is mounted on an installation platform. A glue-separating and cutting device is located between the internal heating device and the high-frequency device, and a double-piece positioning device is located between the cutting device and the chamfering device.

[0006] Preferably, the feeding assembly includes an aluminum profile frame, with a long air shaft and a short air shaft arranged side by side in the front and back of the aluminum profile frame. One end of each of the long and short air shafts is fitted with a urethane sleeve, and the other end of each is connected to a material tray. A metal strip is wound on the material tray. The two material trays are staggered left and right and are on the same horizontal line. The urethane sleeve is connected to a tensioning clamp assembly. The two metal strips are unwound from the feeding assembly and enter the guiding assembly in parallel. The guiding assembly is provided with a guide seat, a pressure seat, a free pulling seat, a free pressure seat, and a correction sensing seat in sequence from front to back.

[0007] Preferably, the tensioning clamp assembly includes an upper clamp and a lower clamp, the urethane sleeve is clamped in the center between the upper clamp and the lower clamp, the upper clamp and the lower clamp are locked together by bolts on both sides, a pressure sensor is sleeved on one bolt between the upper clamp and the lower clamp, and a clamp fixing sleeve is sleeved on the other bolt, and the lower clamp is supported and fixed on the crossbeam.

[0008] Preferably, the glue-separating and cutting device includes a glue-separating fixing plate, a glue-separating seat, an upper cutting die, and a lower cutting die. The glue-separating seat is fixed on the glue-separating fixing plate, and the lower cutting die is fixed on the glue-separating seat. The upper cutting die is driven to rise and fall by a glue-separating cylinder. Two glue-laden metal strips enter between the upper cutting die and the lower cutting die. The upper cutting die includes an upper template, a glue-separating blade, and a glue-cutting blade. The glue-separating blade is located at the center of the upper template, and glue-cutting blades are symmetrically arranged on both sides. The glue-separating blade is fixed to the upper template by a central blade holder, and the glue-cutting blade is fixed to the upper template by side blade holders. The lower cutting die includes a lower template and blade pads. Blade pads are provided on the lower template corresponding to the glue-separating blade and the glue-cutting blade, respectively.

[0009] Preferably, the blade pad is embedded in the lower template, the lower template has a through groove corresponding to the blade holder, the through groove runs through the lower template from top to bottom, and a chip collection box is provided at the bottom of the through groove.

[0010] Preferably, the side blade holder is equipped with an air pipe connector, which is connected to the hollow cavity of the side blade holder. Airflow enters the side blade holder through the air pipe connector and blows the waste chips generated during rubber cutting into the chip collection box below the cutting die.

[0011] Preferably, the dual-piece positioning device includes a positioning platform. The top plate of the positioning platform is provided with a fixed positioning strip, a movable positioning strip, a fixed positioning block, and a movable positioning block. The fixed positioning strip and the movable positioning strip are distributed in parallel front to back. The movable positioning strip can move back and forth. Fixed positioning blocks are symmetrically arranged on the outer side between the fixed positioning strip and the movable positioning strip, and movable positioning blocks are symmetrically arranged on the inner side. The two movable positioning blocks can move left and right towards each other.

[0012] Preferably, the top plate of the positioning platform is provided with through slots corresponding to the left and right connecting blocks, the movable positioning block is provided at the inner end of the left and right connecting blocks, the outer end of the left and right connecting blocks is provided with left and right limiting blocks, and the left and right limiting blocks are provided on the outer side of the fixed positioning block.

[0013] Preferably, the robotic arm handling device transports electrode tabs between the cutting device, the double-piece positioning device, and the electrode tab chamfering device. The robotic arm handling device is equipped with multiple vacuum claws for adsorbing adhesive electrode tabs, and each vacuum claw adsorbs two electrode tabs simultaneously.

[0014] Preferably, the chamfering device has four parts, which are used to cut the four corners of the electrode tabs respectively. Each chamfering device has two chamfering stations, which makes it convenient to chamfer two electrode tabs at the same time.

[0015] The beneficial effects of this utility model are:

[0016] By using two metal belts to produce tabs simultaneously, the tab production cycle is increased from 7 seconds for one tab to 7 seconds for two tabs, thus improving processing efficiency.

[0017] Tension is controlled by mechanical damping and can simultaneously feed and guide two metal strips.

[0018] At the glue separation and cutting station, the metal strips of the shared tape are separated and cut. The adhesive on the tabs of the two metal strips is cut in the middle to form two independent adhesive metal strips. At the same time, the excess adhesive on the tabs is cut off to remove waste adhesive, ensure the tape size, and prepare for subsequent automated chamfering.

[0019] After cutting into plate-shaped tabs, the two plate-shaped tabs are initially positioned simultaneously before chamfering to reduce processing errors. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a dual-track linear production line for solid-state battery tabs according to this utility model.

[0021] Figure 2 This is a schematic diagram of the feeding assembly.

[0022] Figure 3 This is a schematic diagram of the assembly structure of the long air shaft and the tensioning clamp assembly.

[0023] Figure 4 This is a schematic diagram of the assembly structure of the short air shaft and the tension clamp assembly.

[0024] Figure 5 for Figure 4 Exploded view.

[0025] Figure 6 This is a schematic diagram of the material guiding assembly.

[0026] Figure 7 This is a schematic diagram of the glue separating and cutting device.

[0027] Figure 8 for Figure 7 A magnified view of a portion of the image.

[0028] Figure 9 This is a schematic diagram of the lower cutting die.

[0029] Figure 10 This is a schematic diagram of the electrode manufacturing process.

[0030] Figure 11 This is a schematic diagram of the dual-piece positioning device.

[0031] Figure 12 for Figure 11 Rear view.

[0032] Figure 13 This is a schematic diagram of the assembly of the left and right connecting blocks and the bidirectional positioning cylinder.

[0033] in:

[0034] Material feeding assembly 1; Aluminum profile frame 1.1; Crossbeam 1.1.1; Support bearing seat 1.2; Long air shaft 1.3; Short air shaft 1.4; Tensioning clamp assembly 1.5; Upper clamp 1.5.1; Lower clamp 1.5.2; Retaining ring 1.5.3; Pressure sensor 1.5.4; Clamp fixing sleeve 1.5.5; Polyurethane sleeve 1.6; Material tray 1.7;

[0035] Material guiding assembly 2; guide seat 2.1; inlet guide shaft 2.1.1; pressure roller 2.1.2; inlet guide wheel 2.1.3; pressing seat 2.2; free pulling seat 2.3; free pressing seat 2.4; correction induction seat 2.5; outlet guide wheel 2.5.1; correction base plate 2.6; pulling cylinder 2.7;

[0036] Glue separating and cutting device 3; glue separating fixing plate 3.1; glue separating seat 3.2; upper cutting mold 3.3; upper template 3.3.1; glue separating blade 3.3.2; glue cutting blade 3.3.3; middle blade holder 3.3.4; side blade holder 3.3.5; air pipe connector 3.3.6; lower cutting mold 3.4; lower template 3.4.1; through hole 3.4.1.1; blade pad 3.4.2; corner support 3.5; upper mold connecting block 3.6; glue separating and cutting cylinder 3.7; chip collection box 3.8; adjusting fixing seat 3.9; adjusting screw 3.10;

[0037] 4. Double-plate positioning device; 4.1 Positioning platform; 4.2 Fixed positioning strip; 4.3 Movable positioning strip; 4.4 Fixed positioning block; 4.5 Movable positioning block; 4.6 Rear connecting block; 4.7 Rear positioning cylinder; 4.8 Cylinder support; 4.9 Left and right connecting blocks; 4.10 Bidirectional positioning cylinder; 4.11 Cylinder fixing plate; 4.12 Left and right limit blocks; 4.13 Positioning platform mounting plate;

[0038] 5. Leveling and guiding preheating device; 6. Adhesive pulling and applying device; 7. Hot pressing device; 8. Internal heating device; 9. High frequency device; 10. Cold pressing device; 11. Shaping device; 12. Material pulling device; 13. Material pressing device; 14. Cutting device; 15. Chamfering device; 16. Mounting platform; 17. Metal strip; 18. Electrode; 19. Robotic arm handling device. Detailed Implementation

[0039] See Figure 1-13 This utility model relates to a dual-track linear production line for solid-state battery tabs. From front to back, it comprises a feeding and correction device, a leveling and guiding preheating device 5, an adhesive application and bonding device 6, a hot pressing device 7, at least one internal heating device 8, a high-frequency device 9, a cold pressing device 10, a shaping device 11, a feeding device 12, a pressing device 13, a cutting device 14, and a chamfering device 15. The feeding and correction device employs multi-track feeding and includes a feeding assembly 1 and a guiding assembly 2. The feeding assembly 1 is independently positioned in front of the guiding assembly 2. A leveling and guiding preheating device 5, an adhesive application device 6, a hot pressing device 7, at least one internal heating device 8, a high-frequency device 9, a cold pressing device 10, a shaping device 11, a material pulling device 12, a material pressing device 13, a cutting device 14, and a chamfering device 15 are mounted on an installation platform 16. An adhesive separating and cutting device 3 is located between the internal heating device 8 and the high-frequency device 9. A double-piece positioning device 4 is located between the cutting device 14 and the chamfering device 15. A robotic arm handling device 19 transports the electrode tabs between the cutting device, the double-piece positioning device, and the electrode tab chamfering device. The robotic arm handling device has multiple vacuum claws for adsorbing adhesive-coated electrode tabs; each vacuum claw simultaneously adsorbs two electrode tabs. Four chamfering devices 15 are provided to cut the four corners of the electrode tabs. Each chamfering device has two chamfering stations to facilitate simultaneous chamfering of two electrode tabs.

[0040] Two metal strips 17 are unwound from the unwinding assembly 1 and enter the guiding assembly 2. The unwinding assembly 1 includes an aluminum profile frame 1.1, a support bearing seat 1.2, a long air shaft 1.3, a short air shaft 1.4, a tensioning clamp assembly 1.5, a urethane sleeve 1.6, and a material tray 1.7. The long air shaft 1.3 and the short air shaft 1.4 are arranged side by side in front and behind the aluminum profile frame 1.1. One end of the long air shaft 1.3 and the short air shaft 1.4 is fitted with an urethane sleeve 1.6. Each end is connected to a material tray 1.7, with a metal strip 17 wound on the material tray 1.7. The two material trays 1.7 are staggered left and right and on the same horizontal line. The long air shaft 1.3 and the short air shaft 1.4 are rotatably supported on the crossbeam 1.1.1 of the aluminum profile frame 1.1 through the support bearing seat 1.2. The urethane sleeve 1.6 is connected to the tension clamp assembly 1.5, which is fixed on the crossbeam 1.1.1 of the aluminum profile frame 1.1.

[0041] The tensioning clamp assembly 1.5 includes an upper clamp 1.5.1, a lower clamp 1.5.2, a retaining ring 1.5.3, a pressure sensor 1.5.4, and a clamp fixing sleeve 1.5.5. The urethane sleeve 1.6 is clamped at the center between the upper clamp 1.5.1 and the lower clamp 1.5.2. The upper clamp 1.5.1 and the lower clamp 1.5.2 are locked together on both sides by bolts. The bolt on one side between the upper clamp 1.5.1 and the lower clamp 1.5.2... A pressure sensor 1.5.4 is fitted onto the device, and a clamping sleeve 1.5.5 is fitted onto the bolt on the other side. The upper clamp 1.5.1 and lower clamp 1.5.2 lock the urethane sleeve 1.6. The locking force between the upper and lower clamps 1.5.1 and 1.5.2 is adjusted by the bolts, with the specific locking value determined by the pressure sensor 1.5.4 in the middle. This adjusts the friction between the urethane sleeve 1.6 and the corresponding air shaft, thereby regulating the tension of the material tray. A retaining ring 1.5.3 is installed at the ends of the long air shaft 1.3 and the short air shaft 1.4 to prevent the urethane sleeve 1.6 from slipping off. The lower clamp 1.5.2 is supported and fixed to the crossbeam 1.1.1.

[0042] The material guiding assembly 2 is provided with a guide seat 2.1, a pressure seat 2.2, a free pulling seat 2.3, a free pressure seat 2.4, and a correction sensing seat 2.5 in sequence from front to back. The guide seat 2.1, pressure seat 2.2, free pulling seat 2.3, and free pressure seat 2.4 are set on the correction base plate 2.6, which is slidably set on the mounting platform 16. The correction base plate 2.6 is driven to move longitudinally by a correction motor. The guide seat 2.1 is rotatably provided with an inlet guide shaft 2.1.1 and a pressure roller 2.1.2. The inlet guide shaft 2.1.1 and the pressure roller 2.1.2 are staggered front to back. Two metal strips 17 enter parallel between the inlet guide shaft 2.1.1 and the pressure roller 2.1.2. The inlet guide shaft 2.1.1 is provided with multiple inlet guide wheels 2.1.3 corresponding to the metal strips 17, and a metal strip 17 is arranged between adjacent inlet guide wheels 2.1.3.

[0043] The pressing seat 2.2 is equipped with a polyurethane bottom plate and a polyurethane top plate. Two metal strips 17 enter between the upper and lower polyurethane top plate and polyurethane bottom plate to level the metal strips and remove surface debris, thereby improving the yield of the electrode tabs.

[0044] The free pulling seat 2.3 is driven by the pulling cylinder 2.7 to move laterally, which plays the role of conveying the metal strip to a fixed length and maintaining constant tension, so that the strip can be conveyed to a fixed length and kept taut. The metal strip 17 enters the space between the upper and lower pressure plates in the free pulling seat 2.3 and is pressed by the pressing cylinder. The metal strip enters the space between the upper and lower pressure plates in the free pressing seat 2.4 and is pressed by the pressing cylinder. The pressing cylinder and the pressing cylinder move intermittently.

[0045] The correction induction seat 2.5 is provided with an outlet guide shaft, and the outlet guide shaft is provided with multiple outlet guide wheels 2.5.1 corresponding to the metal belt. The outlet guide wheels 2.5.1 are used to ensure that the two metal belts are transported in parallel backward.

[0046] The glue separating and cutting device 3 includes a glue separating fixing plate 3.1, a glue separating seat 3.2, an upper cutting die 3.3, and a lower cutting die 3.4. The glue separating seat 3.2 is fixed on the glue separating fixing plate 3.1. The upper cutting die 3.3 and the lower cutting die 3.4 are distributed vertically. The lower cutting die 3.4 is fixed on the glue separating seat 3.2 by an angle support 3.5. The angle support 3.5 is fixed to the glue separating seat 3.2 by bolts. The angle support 3.5 has a vertical oblong hole corresponding to the bolt. The height of the lower cutting die 3.4 is adjusted by the vertical oblong hole. The upper cutting die 3.3 is connected to a glue-cutting cylinder 3.7 by an upper die connecting block 3.6. The glue-cutting cylinder 3.7 is fixed on the top of the glue separating seat 3.2.

[0047] The upper cutting mold 3.3 includes an upper template 3.3.1, a separating blade 3.3.2, and a cutting blade 3.3.3. The separating blade 3.3.2 is located at the center of the upper template 3.3.1, and the cutting blades 3.3.3 are symmetrically arranged on both sides. The separating blade 3.3.2 is fixed to the upper template 3.3.1 by a central blade holder 3.3.4. The separating blade 3.3.2 cuts the adhesive tabs on the two metal strips in the middle to separate them, forming two independent adhesive tabs. The cutting blade 3.3.3 is fixed to the upper template 3.3.1 by a side blade holder 3.3.5. The cutting blade 3.3.3 cuts off the excess adhesive shoulder of the adhesive tabs, thus cutting off waste adhesive and ensuring the tape size. Two cutting blades 3.3.3 are adjustable horizontally and vertically. The side blade holder 3.3.5 is fixed to the upper template 3.3.1 by adjusting bolts. The upper template 3.3.1 is provided with a longitudinal slotted hole corresponding to the adjusting bolts. The adjusting bolts drive the side blade holder 3.3.5 and the cutting blades 3.3.3 on it to move longitudinally, thereby adjusting the distance between the separating blade 3.3.2 and the cutting blade 3.3.3. This is suitable for separating and cutting rubber on different types of tabs.

[0048] The cutting die 3.4 includes a lower template 3.4.1 and a blade pad 3.4.2. The lower template 3.4.1 is provided with blade pads 3.4.2 corresponding to the glue separating blade 3.3.2 and the glue cutting blade 3.3.3. The blade pads 3.4.2 can be made of tempered glass and are embedded in the lower template 3.4.1. The lower template 3.4.1 is provided with a through hole 3.4.1.1 corresponding to the side blade holder 3.3.5. The through hole 3.4.1.1 passes through the lower template 3.4.1 from top to bottom. A chip collection box 3.8 is provided at the bottom of the through hole 3.4.1.1.

[0049] The side blade holder 3.3.5 is equipped with an air pipe connector 3.3.6, which is connected to the hollow cavity of the side blade holder 3.3.5. The airflow enters the side blade holder 3.3.5 through the air pipe connector 3.3.6 and blows the waste chips generated from cutting the rubber into the chip collection box 3.8 below the cutting die 3.4.

[0050] To ensure smooth lifting and lowering of the upper cutting die 3.3, vertical grooves are provided on both sides of the upper die connecting block 3.6, and the glue separating seat 3.2 is provided with a vertical slide rail corresponding to the vertical groove.

[0051] The glue-dispensing seat 3.2 is adjustable both horizontally and vertically. The glue-dispensing fixing plate 3.1 is provided with an adjusting fixing seat 3.9. The adjusting fixing seat 3.9 is connected to the glue-dispensing seat 3.2 through an adjusting screw 3.10. The adjusting screw 3.10 is rotatably supported on the adjusting fixing seat 3.9, and one end is provided with an adjusting handwheel. Rotating the adjusting handwheel realizes the longitudinal movement of the glue-dispensing seat, thereby adjusting the position of the glue-dispensing blade.

[0052] The dual-piece positioning device 4 includes a positioning platform 4.1. The top plate of the positioning platform 4.1 is provided with a fixed positioning strip 4.2, a movable positioning strip 4.3, a fixed positioning block 4.4, and a movable positioning block 4.5. The fixed positioning strip 4.2 and the movable positioning strip 4.3 are distributed parallel to each other. The fixed positioning strip 4.2 is fixed to the top plate of the positioning platform 4.1. The movable positioning strip 4.3 can move back and forth. The movable positioning strip 4.3 is connected to the rear positioning cylinder 4.7 through the rear connecting block 4.6. The rear connecting block 4.6 passes through the top plate of the positioning platform 4.1 and connects to the telescopic rod of the rear positioning cylinder 4.7. The rear positioning cylinder 4.7 is fixed to the bottom plate of the positioning platform 4.1 through the cylinder support 4.8.

[0053] A fixed positioning block 4.4 is symmetrically arranged on the outer side between the fixed positioning strip 4.2 and the movable positioning strip 4.3, and a movable positioning block 4.5 is symmetrically arranged on the inner side. The fixed positioning block 4.4 is fixed to the top plate of the positioning platform 4.1. The two movable positioning blocks 4.5 can move left and right. The two movable positioning blocks 4.5 are connected to a bidirectional positioning cylinder 4.10 through left and right connecting blocks 4.9 respectively. The bidirectional positioning cylinder 4.10 is fixed to the bottom plate of the positioning platform 4.1 through a cylinder fixing plate 4.11. The top plate of the positioning platform 4.1 has a through groove corresponding to the left and right connecting blocks 4.9. The movable positioning block 4.5 is located at the inner end of the left and right connecting blocks 4.9. The outer end of the left and right connecting blocks 4.9 is provided with a left and right limiting block 4.12, which is located outside the fixed positioning block 4.4. The left and right limiting blocks 4.12 are used to limit the stroke of the bidirectional positioning cylinder 4.10, thereby controlling the displacement of the movable positioning block 4.5. Once the electrode tabs are fully positioned in the left and right directions, the left and right limit blocks 4.12 abut against the through slots on the top plate of the positioning platform 4.1.

[0054] A sliding rail is also provided between the top plate of the left and right connecting blocks 4.9 and the positioning platform 4.1 to facilitate the smooth movement of the movable positioning blocks driven by the left and right connecting blocks.

[0055] The left and right positions of the positioning platform 4.1 are adjustable. The positioning platform 4.1 is slidably mounted on the positioning platform mounting plate 4.13. A sliding rail is also provided between the positioning platform 4.1 and the positioning platform mounting plate 4.13. By manually adjusting the screw, the positioning platform 4.1 and the positioning platform mounting plate 4.13 can move relative to each other to make fine adjustments to the left and right positions of the positioning platform 4.1.

[0056] The two tabs 18, without adhesive, have opposite sides that contact the fixed positioning strip 4.2 and the movable positioning strip 4.3 respectively. The fixed positioning strip 4.2 and the movable positioning strip 4.3 achieve synchronous positioning of the two tabs in the front and back directions.

[0057] The two tabs 18 with adhesive on opposite sides contact the fixed positioning block 4.4 and the movable positioning block 4.5 respectively, and the fixed positioning block 4.4 and the movable positioning block 4.5 avoid the adhesive shoulder of the tab.

[0058] In the initial state, the bidirectional positioning cylinder 4.10 is in the normally closed and closed state, and the rear positioning cylinder 4.7 is in the retracted state;

[0059] When the front-end equipment has electrodes being moved to the positioning platform, the rear positioning cylinder is started first. The telescopic rod of the rear positioning cylinder simultaneously pushes the two adhesive electrodes, so that the two adhesive electrodes are clamped between the fixed positioning strip 4.2 and the movable positioning strip 4.3, thus completing the positioning in the front and rear directions.

[0060] Then activate the bidirectional positioning cylinder 4.10. The telescopic rod of the bidirectional positioning cylinder 4.10 extends outward and simultaneously pushes the movable positioning block 4.5 toward the fixed positioning block 4.4 on the corresponding side, so that the left and right directions of the rubber tabs are limited between the fixed positioning block 4.4 and the movable positioning block 4.5 on the corresponding side, thus completing the left and right positioning of the two tabs.

[0061] A dual-track linear production line for solid-state battery tabs includes the following steps:

[0062] Step 1: Two metal strips are unwound from the unwinding assembly and enter the guiding assembly. At the same time, the tape is unwound, and the pulling device and pressing device work together to convey the metal strips to a fixed length.

[0063] Step 2: Two parallel metal strips 17 enter the shaping, guiding and preheating device for shaping, guiding and preheating for 6-10 seconds at a temperature of 180-200℃; then, the adhesive is applied by the adhesive-applying device to form two adhesive metal strips. The two adhesive metal strips share a fixed length of adhesive tape. The adhesive metal strips are then hot-pressed and heated at least once.

[0064] Step 3: The two adhesive metal strips with a shared fixed length tape enter the adhesive separating and cutting device. The adhesive separating blade is set in the center of the upper cutting die, and the adjustable cutting blades are set on both sides. The adhesive on the tabs of the two metal strips is cut and separated from each other in the middle to form two independent adhesive metal strips. At the same time, the excess adhesive shoulder of the adhesive metal strip is cut off to remove waste adhesive and ensure the tape size.

[0065] Step 4: High-frequency heating is applied to the adhesive-coated metal strip to heat the tab adhesive again, heating it to a semi-liquid state so that it can be better fused together with the metal strip.

[0066] Step 5: Cold press the adhesive-coated metal strip to ensure its flatness, with a cooling water temperature of 18℃; then shape the adhesive-coated metal strip and fine-tune its flatness.

[0067] Step 6: The adhesive-coated metal strip passes through the pulling and pressing devices and enters the cutting device to be cut into sheets;

[0068] Step 7: After the cut electrode tabs are transported by the robotic arm to the double-piece positioning device for positioning, they are then transported to the chamfering device for chamfering. The chamfered parts are the finished power electrode tabs.

[0069] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A dual-track linear production line for solid-state battery tabs, comprising, from front to back, a feeding and correction device, a leveling and guiding preheating device, a glue-applying device, a hot pressing device, at least one internal heating device, a high-frequency device, a cold pressing device, a shaping device, a feeding device, a pressing device, a cutting device, and a chamfering device, characterized in that: The feeding and correction device adopts multi-track feeding, including feeding component and guiding component. The feeding component is independently set in front of the guiding component. The guiding component is set on the installation platform. There is a glue separating and cutting device between the internal heating device and the high frequency device. There is a double-piece positioning device between the cutting device and the chamfering device.

2. The dual-track linear production line for solid-state battery tabs according to claim 1, characterized in that: The feeding assembly includes an aluminum profile frame, with a long air shaft and a short air shaft arranged side by side in front and behind the aluminum profile frame. One end of each of the long and short air shafts is fitted with a urethane sleeve, and the other end is connected to a material tray. Metal strips are wound on the material trays. The two material trays are staggered left and right and on the same horizontal line. The urethane sleeves are connected to a tensioning clamp assembly. The two metal strips are unwound from the feeding assembly and enter the guiding assembly in parallel. The guiding assembly is provided with a guide seat, a pressure seat, a free pulling seat, a free pressure seat, and a correction sensing seat in sequence from front to back.

3. The dual-track linear production line for solid-state battery tabs according to claim 2, characterized in that: The tensioning clamp assembly includes an upper clamp and a lower clamp. The urethane sleeve is clamped in the center between the upper clamp and the lower clamp. The upper clamp and the lower clamp are locked together by bolts on both sides. A pressure sensor is fitted on one bolt between the upper clamp and the lower clamp, and a clamp fixing sleeve is fitted on the other bolt. The lower clamp is supported and fixed on the crossbeam.

4. The dual-track linear production line for solid-state battery tabs according to claim 1, characterized in that: The glue-separating and cutting device includes a glue-separating fixing plate, a glue-separating seat, an upper cutting die, and a lower cutting die. The glue-separating seat is fixed on the glue-separating fixing plate, and the lower cutting die is fixed on the glue-separating seat. The upper cutting die is driven to rise and fall by a glue-separating cylinder. Two glue-laden metal strips enter between the upper cutting die and the lower cutting die. The upper cutting die includes an upper template, a glue-separating blade, and a glue-cutting blade. The glue-separating blade is located at the center of the upper template, and glue-cutting blades are symmetrically located on both sides. The glue-separating blade is fixed on the upper template by a central blade holder, and the glue-cutting blade is fixed on the upper template by a side blade holder. The lower cutting die includes a lower template and blade pads. The lower template has blade pads corresponding to the glue-separating blade and the glue-cutting blade, respectively.

5. A dual-track linear production line for solid-state battery tabs according to claim 4, characterized in that: The blade pad is embedded in the lower template. The lower template has a through groove corresponding to the blade holder on the side. The through groove runs through the lower template from top to bottom. A chip collection box is provided at the bottom of the through groove.

6. The dual-track linear production line for solid-state battery tabs according to claim 4, characterized in that: The side blade holder is equipped with an air pipe connector, which is connected to the hollow cavity of the side blade holder. Airflow enters the side blade holder through the air pipe connector and blows the waste chips generated during rubber cutting into the chip collection box below the cutting die.

7. A dual-track linear production line for solid-state battery tabs according to claim 1, characterized in that: The dual-piece positioning device includes a positioning platform. The top plate of the positioning platform is provided with a fixed positioning strip, a movable positioning strip, a fixed positioning block, and a movable positioning block. The fixed positioning strip and the movable positioning strip are distributed in parallel front to back. The movable positioning strip can move back and forth. Fixed positioning blocks are symmetrically arranged on the outer side between the fixed positioning strip and the movable positioning strip, and movable positioning blocks are symmetrically arranged on the inner side. The two movable positioning blocks can move left and right towards each other.

8. A dual-track linear production line for solid-state battery tabs according to claim 7, characterized in that: The top plate of the positioning platform has through slots corresponding to the left and right connecting blocks. The movable positioning block is located at the inner end of the left and right connecting blocks, and the outer end of the left and right connecting blocks has left and right limiting blocks, which are located on the outside of the fixed positioning block.

9. A dual-track linear production line for solid-state battery tabs according to claim 1, characterized in that: The robotic arm handling device transports electrode tabs between the cutting device, the double-piece positioning device, and the chamfering device. The robotic arm handling device is equipped with multiple vacuum claws for adsorbing adhesive electrode tabs, and each vacuum claw can adsorb two electrode tabs at the same time.

10. A dual-track linear production line for solid-state battery tabs according to claim 1 or 9, characterized in that: The chamfering device has four parts, which are used to cut the four corners of the electrode tabs. Each chamfering device has two chamfering stations, which makes it easy to chamfer two electrode tabs at the same time.

Images