Pole piece rubberizing equipment and processing technology thereof

Abstract

This invention relates to the field of electrode manufacturing technology and discloses an electrode adhesive application device and its processing technology. The device includes an adhesive application machine body, inside which a drive assembly, an adhesive application assembly, and a smoothing assembly are installed. The output end of the drive assembly is connected to the adhesive application assembly. During the return stroke of the adhesive application assembly, the depth difference between the application groove and the smoothing groove drives the adhesive application assembly to move upwards and separate from the electrode. Simultaneously, the linkage of the connecting arm drives the smoothing assembly to move downwards and adhere to the electrode. Furthermore, the friction wheel and friction plate only engage during the return stroke, driving the pressing roller to rotate and precisely smooth the freshly applied adhesive. The smoothing operation is completed during the idle time of the return stroke, eliminating the need for an additional drive mechanism to control the start and stop of the smoothing assembly. This shortens the overall operation cycle and ensures that the adhesive is evenly pressed within a short time after application, reducing problems such as air bubbles, lifting, and misalignment. This significantly improves the flatness and adhesion of the electrode adhesive application, ensuring the quality of subsequent electrode processing.

Description

Technical Field

[0001] This invention belongs to the field of electrode production technology, specifically, it relates to an electrode adhesive bonding device and its processing technology. Background Technology

[0002] In the production of energy storage devices such as lithium-ion batteries and sodium-ion batteries, electrode adhesive application is one of the key processes to ensure battery safety and stability. Its main function is to provide insulation protection for weak parts such as the edges of the electrode and the root of the tab, so as to avoid potential hazards such as short circuits and damage during subsequent processing and battery assembly. Therefore, there are extremely high requirements for the flatness, adhesion and efficiency of the adhesive application.

[0003] Currently, after completing a single adhesive application, the existing equipment's adhesive application component needs to perform a return motion to reset to the initial adhesive application position. During the return motion, the equipment is idle and requires a separate smoothing operation afterward, which wastes time and affects operational efficiency.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An electrode adhesive application device includes an adhesive application machine body.

[0006] The adhesive applicator body is equipped with a drive component, an adhesive applicator component, and a smoothing component. The output end of the drive component is connected to the adhesive applicator component and is used to drive the adhesive applicator component to move on the electrode sheet. The driving assembly includes a driving roller with a patching groove and a smoothing groove. The patching groove and the smoothing groove are connected end to end and are used to drive the adhesive application assembly in the outward and return directions. A top rod is slidably arranged inside the patching groove, and the bottom of the top rod is connected to the adhesive application assembly. The depth of the patching groove is lower than the depth of the smoothing groove, so as to drive the adhesive application assembly to move upward during the return direction and thus separate it from the electrode. A connecting arm connects the smoothing component and the adhesive applicator, and the connecting arm rotates around the rotation center. When the adhesive applicator moves upward, the smoothing component moves downward to fit the electrode sheet. The smoothing component includes a pair of rotatably connected turntables, and several pairs of pressing rollers are installed at the bottom of the turntables. The pressing rollers correspond to the adhesive applicator position. A friction wheel is installed at the rotation center of the turntable. When the smoothing component moves downward, the friction wheel corresponds to the friction plate inside the adhesive applicator body and is used to drive the pressing rollers to rotate.

[0007] In a preferred embodiment of the present invention, support legs are installed at the four corners of the adhesive applicator body, and pads are installed at the bottom of the support legs. Anti-slip pads are provided at the bottom of the pads. A take-up and release assembly is provided inside the adhesive applicator body, and the take-up and release assembly is used to drive the conveying of the electrode sheet. A pair of tension rollers are installed inside the adhesive applicator body, and the tension rollers are in contact with the bottom of the electrode sheet. The tension rollers are used to adjust the tension of the electrode sheet.

[0008] In a preferred embodiment of the present invention, drive shafts are installed at both ends of the drive roller, a bracket is rotatably installed on the outer wall of the drive shaft, the bottom of the bracket is installed on the inner wall of the adhesive applicator body, a drive motor is installed on the outer shell of the bracket, and the output end of the drive motor is connected to the drive shaft.

[0009] In a preferred embodiment of the present invention, both the patch groove and the smoothing groove are spiral-shaped, and a ramp is provided at the connection between the patch groove and the smoothing groove.

[0010] In a preferred embodiment of the present invention, a slide block is slidably provided on the outer wall of the top rod, and a pressure plate is also installed on the top rod. A compression spring is sleeved on the outer wall of the top rod between the pressure plate and the slide block, and the two ends of the compression spring are respectively engaged with the side wall of the pressure plate and the slide block. The compression spring is used to keep the top of the top rod in contact with the end face of the patch groove and the smoothing groove.

[0011] In a preferred embodiment of the present invention, a sliding plate is installed on the side wall of the slide block, and several pairs of slide rails are installed on the sliding plate. A positioning frame is also installed on the body of the adhesive applicator. A positioning plate is installed on the surface of the positioning frame, and several pairs of sliding grooves are opened on the positioning plate. The sliding grooves and the slide rails are both in a straight line, and the slide rails are slidably disposed on the surface of the sliding grooves.

[0012] In a preferred embodiment of the present invention, a timing frame is installed on the side wall of the slide block, and a rod is movably installed through the end of the timing frame. A limiting plate is installed on the top of the rod, and the diameter of the limiting plate is larger than the diameter of the rod to prevent the timing frame from separating from the rod. A timing plate is installed at the bottom of the rod, and timing shafts are rotatably installed at both ends of the timing plate. The bottom of the timing shaft is connected to the rotation center of the turntable, and the top of the timing shaft is connected to the friction wheel.

[0013] In a preferred embodiment of the present invention, an inclined plate is installed on the side wall of the synchronization plate, and an auxiliary roller is rotatably installed at the end of the inclined plate. The bottom of the auxiliary roller is flush with the bottom of the pressing roller, and the auxiliary roller is located on the horizontal extension line of the center of a pair of turntables. A support frame is installed on the body of the adhesive applicator, and the end of the support frame is connected to the friction plate.

[0014] In a preferred embodiment of the present invention, a positioning seat is installed at the bottom of the skateboard, a positioning shaft is rotatably installed at the bottom of the positioning seat, a connecting arm is installed on the positioning shaft, and a strip groove is opened at both ends of the connecting arm, and a sliding rod is slidably arranged inside the strip groove. One sliding rod is connected to the side wall of the insertion rod, and the other sliding rod is connected to the side wall of the adhesive component.

[0015] A process for bonding electrode sheets with adhesive, comprising the following steps: Step 1: Equipment debugging and preparation: Place the electrode adhesive applicator on a horizontal working surface and use the pads and anti-slip pads on the support legs at the bottom of the adhesive applicator body to stabilize the equipment; Step 2: Electrode clamping and positioning: Install the electrode to be glued on the take-up and release assembly, pull one end of the electrode through the tension roller in sequence, adjust the conveying tension of the take-up and release assembly, and at the same time adjust the tension roller to make the tension roller and the bottom of the electrode fit tightly together. Step 3: Adhesive Application Start-up: Turn on the equipment power, control the take-up and release components and drive motor to start synchronously. The take-up and release components drive the electrode sheet to be transported smoothly at a preset speed. The output end of the drive motor drives the drive shaft and drive roller to rotate at a uniform speed. At this time, the push rod slides against the inner wall of the application slot under the action of the compression spring, driving the adhesive application component to move along the application slot with the push rod. The adhesive application component maintains a state of contact with the electrode sheet surface, and synchronously completes the adhesive application operation at the designated position of the electrode sheet. During this process, the slide block guides the movement of the adhesive application component through the slide rail on the slide plate and the slide groove on the positioning plate, ensuring accurate adhesive application trajectory. Step 4: Linkage switching of adhesive application and smoothing components: When the drive roller continues to rotate and the push rod moves to the connection between the application groove and the smoothing groove, it smoothly transitions into the smoothing groove via a ramp; since the depth of the smoothing groove is higher than that of the application groove, the push rod slides along the smoothing groove, driving the adhesive application component to move upward, causing the adhesive application component to separate from the electrode surface and enter the return state; during the upward movement of the adhesive application component, the connecting arm rotates around the positioning shaft, driving the synchronous plate and the smoothing component to move downward until the pressing roller and auxiliary roller at the bottom of the smoothing component are in contact with the electrode surface, at which point the friction wheel at the top of the synchronous shaft is precisely aligned with the friction plate; Step 5: Colloid smoothing operation: When the top rod drives the slide and synchronous plate to move back along the smoothing groove, the friction wheel and friction plate mesh and contact each other. The friction force generated between them drives the friction wheel to rotate, which in turn drives the turntable and pressing roller to rotate at a constant speed through the synchronous shaft; during the rotation of the pressing roller, the colloid on the surface of the electrode sheet is pressed and smoothed evenly. Step Six: Component Reset and Cyclic Operation: When the push rod rotates with the drive roller to the connection between the smoothing groove and the patch groove, it transitions again to the patch groove via the ramp. The push rod drives the adhesive application component to move downwards and re-attach to the electrode surface.

[0016] Compared with the prior art, the present invention has the following advantages: The return stroke of this invention achieves seamless linkage between adhesive application and smoothing. When the top rod slides along the smoothing groove, driving the adhesive application component back, the depth difference between the application groove and the smoothing groove drives the adhesive application component to move upward and separate from the electrode. At the same time, the linkage of the connecting arm drives the smoothing component to move downward and adhere to the electrode. Moreover, the friction wheel and friction plate only engage during the return stroke, driving the pressing roller to rotate and precisely smooth the newly applied adhesive. This synchronous linkage of return and smoothing actions avoids the problem of existing equipment requiring an additional smoothing process after adhesive application, which is time-consuming and labor-intensive. The smoothing operation is completed during the return stroke idle time, without the need for an additional drive mechanism to control the start and stop of the smoothing component. This shortens the overall operation cycle and ensures that the adhesive is evenly pressed in a short time after application, reducing problems such as air bubbles, lifting, and displacement of the adhesive. It significantly improves the flatness and adhesion of the electrode adhesive and ensures the quality of subsequent electrode processing.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A perspective view of an electrode bonding device; Figure 2 This is an internal structural diagram of an electrode bonding device; Figure 3 A partial structure of an electrode bonding device Figure 1 ; Figure 4 A partial structure of an electrode bonding device Figure 2 ; Figure 5 A partial structure of an electrode bonding device Figure 3 ; Figure 6 A partial structure of an electrode bonding device Figure 4 ; Figure 7 A partial structure of an electrode bonding device Figure 5 ; Figure 8 A 3D model of a smoothing component for an electrode bonding device; Figure 9 For a type of electrode bonding equipment Figure 8 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Adhesive applicator body; 2. Support leg; 3. Gasket; 4. Adhesive applicator assembly; 5. Drive roller; 6. Applicator slot; 7. Smoothing slot; 8. Ramp; 9. Bracket; 10. Drive motor; 11. Drive shaft; 12. Top rod; 13. Slide seat; 14. Pressure plate; 15. Compression spring; 16. Slide plate; 17. Slide rail; 18. Positioning plate; 19. Positioning frame; 20. Slide groove; 21. Synchronizing frame; 22. Insert rod; 23. Limiting plate; 24. Synchronizing plate; 25. Synchronizing shaft; 26. Friction wheel; 27. Friction plate; 28. Support frame; 29. ​​Turntable; 30. Pressing roller; 31. Inclined plate; 32. Auxiliary roller; 33. Positioning seat; 34. Positioning shaft; 35. Connecting arm; 36. Strip groove; 37. Slide rod; 38. Tensioning roller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0021] like Figures 1 to 9 As shown, an electrode adhesive application device includes an adhesive application machine body 1.

[0022] The body 1 of the adhesive applicator is equipped with a drive component, an adhesive applicator 4 and a smoothing component. The output end of the drive component is connected to the adhesive applicator 4 and is used to drive the adhesive applicator 4 to move on the electrode. The driving assembly includes a driving roller 5, on which a patching groove 6 and a smoothing groove 7 are formed. The patching groove 6 and the smoothing groove 7 are connected end to end and are used to drive the adhesive application assembly 4 on its outward and return journeys. A push rod 12 is slidably disposed inside the patching groove 6, and the bottom of the push rod 12 is connected to the adhesive application assembly. The depth of the patching groove 6 is lower than the depth of the smoothing groove 7, which is used to drive the adhesive application assembly 4 to move upward during the return journey, thereby separating it from the electrode. Through the patching groove 6 and the smoothing groove 7 connected end to end on the driving roller 5, the orderly switching of the adhesive application assembly 4 on its outward journey and separation on its return journey is realized. The sliding cooperation between the push rod 12 and the patching groove 6 ensures the stability of the movement of the adhesive application assembly 4, while the depth difference between the patching groove 6 and the smoothing groove 7 can accurately drive the adhesive application assembly 4 to move upward and separate from the electrode during the return journey, avoiding the adhesive application assembly 4 from scratching the electrode surface during the return journey and ensuring the processing quality of the electrode.

[0023] A connecting arm 35 connects the smoothing component and the adhesive application component 4, and the connecting arm 35 rotates around the rotation center. When the adhesive application component 4 moves upward, the smoothing component moves downward to adhere to the electrode sheet. The smoothing component includes a pair of rotatably connected turntables 29, and several pairs of pressing rollers 30 are installed at the bottom of the turntables 29, with the pressing rollers 30 corresponding to the adhesive application position. A friction wheel 26 is installed at the rotation center of the turntables 29. When the smoothing component moves downward, the friction wheel 26 corresponds to the friction plate 27 inside the adhesive application machine body 1, which is used to drive the pressing rollers 30 to rotate. The connecting arm 35 realizes the linkage between the smoothing component and the adhesive application component 4, ensuring that the smoothing component can accurately move downward to adhere to the electrode sheet after the adhesive application component 4 moves upward. The pressing rollers 30 at the bottom of the turntables 29 correspond to the adhesive application position, and with the driving action of the friction wheel 26 and the friction plate 27, the pressing rollers 30 can be rotated, thereby accurately smoothing the adhesive application position and improving the adhesion between the adhesive and the electrode sheet.

[0024] like Figures 1 to 9 As shown in the specific embodiment, support legs 2 are installed at the four corners of the adhesive applicator body 1. Pads 3 are installed at the bottom of the support legs 2, and anti-slip pads are provided at the bottom of the pads 3. A take-up and release assembly is installed inside the adhesive applicator body 1, which drives the conveying of the electrode sheet. A pair of tension rollers 38 are installed inside the adhesive applicator body 1, and the tension rollers 38 are in contact with the bottom of the electrode sheet. The tension rollers 38 are used to adjust the tension of the electrode sheet. The cooperation of the support legs 2, pads 3, and anti-slip pads ensures the stability of the adhesive applicator body 1, preventing shaking during operation and affecting the adhesive application accuracy. The take-up and release assembly enables continuous conveying of the electrode sheet, and the adjustment of the electrode sheet tension by the tension rollers 38 prevents loosening or displacement of the electrode sheet during conveying, further ensuring the accuracy of the adhesive application position.

[0025] Example 2: The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, drive shafts 11 are mounted at both ends of the drive roller 5. A bracket 9 is rotatably mounted on the outer wall of the drive shaft 11. The bottom of the bracket 9 is mounted on the inner wall of the adhesive applicator body 1. A drive motor 10 is mounted on the outer shell of the bracket 9, and the output end of the drive motor 10 is connected to the drive shaft 11. The bracket 9 ensures the stable installation of the drive shaft 11 and the drive roller 5 within the adhesive applicator body 1. The connection between the drive motor 10 and the drive shaft 11 provides stable power for the rotation of the drive roller 5, ensuring that the drive roller 5 can rotate at a uniform speed, thereby ensuring the smooth movement of the adhesive applicator assembly 4 and the accuracy of the adhesive application.

[0026] like Figures 1 to 9As shown, both the patching groove 6 and the smoothing groove 7 are spiral-shaped, and a ramp 8 is provided at the connection between the patching groove 6 and the smoothing groove 7. The spiral shape of the patching groove 6 and the smoothing groove 7 allows the top rod 12 to drive the adhesive application assembly 4 to move smoothly in a straight line. The ramp 8 at the connection ensures a smooth transition of the top rod 12 between the patching groove 6 and the smoothing groove 7, avoiding jamming when the top rod 12 moves, and ensuring the smoothness of the linkage switching between the adhesive application assembly 4 and the smoothing assembly.

[0027] like Figures 1 to 9 As shown in the specific embodiment, a slide block 13 is slidably disposed on the outer wall of the push rod 12, and a pressure plate 14 is also installed on the push rod 12. A compression spring 15 is sleeved on the outer wall of the push rod 12 located between the pressure plate 14 and the slide block 13, and the two ends of the compression spring 15 are respectively engaged with the side walls of the pressure plate 14 and the slide block 13. The compression spring 15 is used to ensure that the top of the push rod 12 is always in contact with the end faces of the patch groove 6 and the smoothing groove 7. The slide block 13 provides guiding support for the sliding of the push rod 12. The compression spring 15 between the pressure plate 14 and the slide block 13 can always press the top of the push rod 12 against the end faces of the patch groove 6 and the smoothing groove 7, ensuring that the push rod 12 will not disengage from the groove when it rotates with the drive roller 5, and ensuring the stability and reliability of the push rod 12 driving the adhesive application assembly 4 to move.

[0028] like Figures 1 to 9 As shown, furthermore, a sliding plate 16 is installed on the side wall of the slide block 13, and several pairs of slide rails 17 are installed on the sliding plate 16. A positioning frame 19 is also installed on the adhesive applicator body 1, and a positioning plate 18 is installed on the surface of the positioning frame 19. Several pairs of sliding grooves 20 are opened on the positioning plate 18. The sliding grooves 20 and the slide rails 17 are both in a straight line, and the slide rails 17 are slidably disposed on the surface of the sliding grooves 20. The sliding plate 16 and slide rails 17 on the slide block 13 and the sliding grooves 20 on the positioning plate 18 slide in cooperation, providing precise guidance for the movement of the slide block 13 and the top rod 12, ensuring the straightness of the movement trajectory of the adhesive applicator 4, effectively improving the positional accuracy of the electrode adhesive application, and avoiding adhesive application deviation.

[0029] Example 3: The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, a synchronization frame 21 is installed on the side wall of the slide block 13. A rod 22 is movably installed through the end of the synchronization frame 21. A limiting plate 23 is installed on the top of the rod 22. The diameter of the limiting plate 23 is larger than the diameter of the rod 22 to prevent the synchronization frame 21 from separating from the rod 22. A synchronization plate 24 is installed at the bottom of the rod 22. Synchronization shafts 25 are rotatably installed at both ends of the synchronization plate 24. The bottom of the synchronization shafts 25 is connected to the rotation center of the turntable 29, and the top of the synchronization shafts 25 is connected to the friction wheel 26. The synchronization shafts 25 link the friction wheel 26 and the turntable 29, ensuring that the rotation of the friction wheel 26 can synchronously drive the turntable 29 and the pressing roller 30 to rotate, thus ensuring the normal operation of the smoothing work.

[0030] like Figures 1 to 9 As shown, in a specific embodiment, an inclined plate 31 is installed on the side wall of the synchronous plate 24, and an auxiliary roller 32 is rotatably installed at the end of the inclined plate 31. The bottom of the auxiliary roller 32 is flush with the bottom of the pressing roller 30, and the auxiliary roller 32 is located on the horizontal extension line of the center of a pair of turntables 29. A support frame 28 is installed on the adhesive applicator body 1, and the end of the support frame 28 is connected to the friction plate 27. The auxiliary roller 32 on the plate 31 is flush with the bottom of the pressing roller 30, which can play an auxiliary positioning and flattening role for the electrode sheet during the smoothing process, further improving the smoothing effect; the support frame 28 realizes the stable installation of the friction plate 27, ensuring that the friction plate 27 can accurately cooperate with the friction wheel 26, providing a stable driving force for the rotation of the pressing roller 30.

[0031] like Figures 1 to 9 As shown, furthermore, a positioning seat 33 is installed at the bottom of the slide plate 16, and a positioning shaft 34 is rotatably mounted on the bottom of the positioning seat 33. A connecting arm 35 is installed on the positioning shaft 34. Both ends of the connecting arm 35 are provided with strip grooves 36, and slide rods 37 are slidably arranged inside the strip grooves 36. One slide rod 37 is connected to the side wall of the insertion rod 22, and the other slide rod 37 is connected to the side wall of the adhesive application component 4. The positioning seat 33 and the positioning shaft 34 provide stable support for the rotation of the connecting arm 35. The sliding cooperation between the strip grooves 36 at both ends of the connecting arm 35 and the slide rods 37 can accommodate the difference in lifting displacement between the adhesive application component 4 and the smoothing component, ensuring smooth switching between the two and ensuring the orderly connection of adhesive application and smoothing operations.

[0032] This invention also discloses a processing technology for electrode adhesive bonding, the steps of which are as follows: Step 1: Equipment debugging and preparation: Place the electrode adhesive applicator on a horizontal working surface and use the pads 3 and anti-slip pads on the bottom support legs 2 of the adhesive applicator body 1 to stabilize the equipment. Step 2: Electrode clamping and positioning: Install the electrode to be glued on the take-up and release assembly, pull one end of the electrode through the tension roller 38 in sequence, adjust the conveying tension of the take-up and release assembly, and at the same time adjust the tension roller 38 to make the tension roller 38 fit tightly with the bottom of the electrode. Step 3: Adhesive application start-up: Turn on the equipment power, control the take-up and release components and drive motor 10 to start synchronously. The take-up and release components drive the electrode sheet to be transported smoothly at a preset speed. The output end of the drive motor 10 drives the drive shaft 11 and drive roller 5 to rotate at a uniform speed. At this time, the push rod 12 slides against the inner wall of the patching groove 6 under the action of the compression spring 15, driving the adhesive application component 4 to move along the patching groove 6 with the push rod 12. The adhesive application component 4 maintains the state of being in contact with the surface of the electrode sheet, and synchronously completes the adhesive application operation at the designated position of the electrode sheet. During this process, the slide block 13 slides and cooperates with the slide rail 17 on the slide plate 16 and the slide groove 20 on the positioning plate 18 to guide the movement of the adhesive application component 4 and ensure the accuracy of the adhesive application trajectory. Step 4: Linkage switching of adhesive application and smoothing components: When the drive roller 5 continues to rotate and the top rod 12 moves to the connection between the patching groove 6 and the smoothing groove 7, it smoothly transitions into the smoothing groove 7 via the ramp 8; since the depth of the smoothing groove 7 is higher than that of the patching groove 6, when the top rod 12 slides along the smoothing groove 7, it drives the adhesive application component 4 to move upward, so that the adhesive application component 4 separates from the electrode surface and enters the return state; during the upward movement of the adhesive application component 4, the connecting arm 35 rotates around the positioning shaft 34, driving the synchronous plate 24 and the smoothing component to move downward until the pressing roller 30 and auxiliary roller 32 at the bottom of the smoothing component are in contact with the electrode surface. At this time, the friction wheel 26 at the top of the synchronous shaft 25 is precisely aligned with the friction plate 27; Step 5: Colloid smoothing operation: When the top rod 12 drives the slide block 13 and the synchronous plate 24 to move back along the smoothing groove 7, the friction wheel 26 and the friction plate 27 mesh and contact each other. The friction force generated between them drives the friction wheel 26 to rotate, which in turn drives the turntable 29 and the pressing roller 30 to rotate at a constant speed through the synchronous shaft 25. During the rotation of the pressing roller 30, the colloid on the surface of the electrode sheet is pressed and smoothed evenly. Step Six: Component Reset and Cyclic Operation: When the push rod 12 rotates with the drive roller 5 to the connection between the smoothing groove 7 and the patch groove 6, it transitions again into the patch groove 6 via the ramp 8. The push rod 12 drives the adhesive application component 4 to move downward and re-attach to the electrode surface.

[0033] The implementation principle of the electrode adhesive bonding device of the present invention is as follows: Before starting the equipment, the pads and anti-slip pads on the bottom support legs 2 of the adhesive applicator body 1 are used to ensure stable placement of the equipment. Then, the electrode to be adhesiveped is placed on the take-up and release assembly. The pair of tension rollers 38 inside the adhesive applicator body 1 are adjusted to make the tension rollers 38 fit against the bottom of the electrode, thereby adjusting the tension of the electrode to prevent the electrode from loosening or shifting during the adhesive application process and ensuring the adhesive application accuracy. After starting the equipment, the take-up and release assembly begins to work, driving the electrode to be transported smoothly. At the same time, the drive motor 10 in the drive assembly starts, and its output end drives the drive shaft 11 to rotate, which in turn drives the drive roller 5 connected to the drive shaft 11 to rotate synchronously. The two ends of the drive roller 5 are rotatably mounted on the inner side wall of the adhesive applicator body 1 through the bracket 9 to ensure the stability of the drive roller 5 during rotation.

[0034] Since the drive roller 5 has a patching groove 6 and a smoothing groove 7 connected end to end, and the bottom of the top rod 12 slidably disposed inside the patching groove 6 is connected to the adhesive assembly 4, and the slide seat 13 slidably disposed on the outer wall of the top rod 12 slides and engages with the slide groove 20 of the positioning plate 18 on the positioning frame 19 through the slide rail 17 on the slide plate 16, it plays a guiding role and ensures the straightness of the top rod 12 when it drives the adhesive assembly 4 to move. At the same time, the compression spring 15 sleeved between the pressure plate 14 on the top rod 12 and the slide seat 13 is always in a compressed state, pressing the top of the top rod 12 tightly against the end face of the patching groove 6 and the smoothing groove 7, ensuring that the top rod 12 can slide stably along the patching groove 6 and the smoothing groove 7 when it rotates with the drive roller 5.

[0035] When the drive roller 5 rotates, the push rod 12 first slides along the patch groove 6. Since the patch groove 6 is relatively shallow, the push rod 12 drives the adhesive application assembly 4 to maintain its contact with the electrode sheet, thus realizing the outward movement of the adhesive application assembly 4. During this process, the adhesive application assembly 4 completes the adhesive application operation at the designated position of the electrode sheet. During the outward movement, the adhesive application assembly moves on the surface of the electrode sheet to perform the adhesive application operation on the electrode sheet.

[0036] When the push rod 12 rotates with the drive roller 5 to the connection between the patch groove 6 and the smoothing groove 7, it smoothly transitions into the smoothing groove 7 through the ramp 8 between the two. Since the depth of the smoothing groove 7 is higher than that of the patch groove 6, the push rod 12 drives the adhesive application assembly 4 to move upward when it slides in the smoothing groove 7, thereby separating the adhesive application assembly 4 from the electrode sheet and completing the return preparation of the adhesive application assembly 4.

[0037] During the upward movement of the adhesive application component 4, the smoothing component moves synchronously via the connecting arm 35. The two ends of the connecting arm 35 slide with the slide rod 37 through the strip groove 36, and the connecting arm 35 rotates around the positioning shaft 34 at the bottom of the positioning seat 33. When the adhesive application component 4 moves upward, the connecting arm 35 rotates, thereby driving the synchronous plate 24 connected to another slide rod 37 to move downward, realizing the downward movement of the smoothing component and making the smoothing component adhere to the electrode sheet.

[0038] After the smoothing component moves down, the friction wheels 26 at the top of the synchronous shafts 25 at both ends of the synchronous plate 24 correspond to the friction plates 27 on the internal support frame 28 of the adhesive applicator body 1 and are on the same straight line. At this time, the two do not make contact or mesh. When the synchronous plate 24 continues to move with the top rod 12 (i.e., during the return stroke), the friction wheels 26 and the friction plates 27 make contact and generate friction, which in turn drives the friction wheels 26 to rotate. The friction wheels 26 are connected to the rotation center of the turntable 29. Therefore, when the friction wheels 26 rotate, they drive the turntable 29 to rotate synchronously. Several pairs of pressing rollers 30 installed at the bottom of the turntable 29 correspond to the adhesive application positions on the electrode. When the pressing rollers 30 rotate with the turntable 29, they press and smooth the adhesive on the electrode evenly, ensuring that the adhesive adheres tightly to the electrode and avoiding problems such as air bubbles and lifting. Meanwhile, the bottom of the auxiliary roller 32, which is rotatably installed at the end of the inclined plate 31 on the side wall of the synchronous plate 24, is flush with the bottom of the pressing roller 30, and the auxiliary roller 32 is located on the horizontal extension line of the center of a pair of turntables 29. It plays an auxiliary positioning and pressing role in the smoothing process, further ensuring the smoothing effect.

[0039] As the push rod 12 continues to rotate with the drive roller 5, returning from the smoothing groove 7 to the patching groove 6 via the ramp 8, the push rod 12 drives the adhesive application assembly 4 downwards to re-attach to the electrode sheet. Simultaneously, the adhesive application assembly 4 drives the smoothing assembly upwards via the connecting arm 35, causing the friction wheel 26 to separate from the friction plate 27. The turntable 29 and the pressing roller 30 stop rotating, and the smoothing assembly separates from the electrode sheet. During this process, the insertion rod 22 on the synchronous frame 21 on the side wall of the slide block 13 rises and falls synchronously under the drive of the synchronous plate 24. The limiting plate 23 effectively prevents the synchronous frame 21 from separating from the insertion rod 22, ensuring the stability of the connection. Subsequently, the drive roller 5 continues to rotate, and the push rod 12 repeats the process of sliding along the patching groove 6 and the smoothing groove 7, driving the adhesive application assembly 4 and the smoothing assembly to work alternately, realizing continuous and efficient adhesive application to the electrode sheet. The take-up and take-down assembly synchronously transports the electrode sheet, completing the entire electrode sheet adhesive application process. This cycle repeats until all electrode sheet adhesive application operations are completed.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrode adhesive application device, comprising an adhesive application machine body (1), characterized in that: The adhesive applicator body (1) is equipped with a drive assembly, an adhesive applicator assembly (4) and a smoothing assembly. The output end of the drive assembly is connected to the adhesive applicator assembly (4) and is used to drive the adhesive applicator assembly (4) to move on the electrode. The driving assembly includes a driving roller (5), on which a patching groove (6) and a smoothing groove (7) are provided. The patching groove (6) and the smoothing groove (7) are connected end to end. The patching groove (6) and the smoothing groove (7) are used to drive the adhesive application assembly (4) in the outward and return directions. A top rod (12) is slidably provided inside the patching groove (6), and the bottom of the top rod (12) is connected to the adhesive application assembly. The depth of the patching groove (6) is lower than the depth of the smoothing groove (7), which is used to drive the adhesive application assembly (4) to move upward during the return direction, thereby separating it from the electrode sheet. A connecting arm (35) is connected between the smoothing component and the adhesive application component (4), and the connecting arm (35) rotates around the rotation center. When the adhesive application component (4) moves up, the smoothing component moves down and fits with the electrode sheet. The smoothing component includes a pair of rotating turntables (29), and several pairs of pressing rollers (30) are installed at the bottom of the turntables (29). The pressing rollers (30) correspond to the adhesive application position. A friction wheel (26) is installed at the rotation center of the turntables (29). When the smoothing component moves down, the friction wheel (26) corresponds to the friction plate (27) inside the adhesive application machine body (1) and is used to drive the pressing rollers (30) to rotate.

2. The electrode bonding equipment according to claim 1, characterized in that, The adhesive applicator body (1) is equipped with support legs (2) at the four corners. The support legs (2) are equipped with pads (3) at the bottom. The pads (3) are equipped with anti-slip pads at the bottom. The adhesive applicator body (1) is equipped with a take-up and release assembly, which is used to drive the conveying of the electrode sheet. The adhesive applicator body (1) is equipped with a pair of tension rollers (38), which are attached to the bottom of the electrode sheet. The tension rollers (38) are used to adjust the tension of the electrode sheet.

3. The electrode bonding equipment according to claim 1, characterized in that, The drive roller (5) is equipped with drive shafts (11) at both ends. A bracket (9) is rotatably mounted on the outer wall of the drive shaft (11). The bottom of the bracket (9) is mounted on the inner wall of the adhesive applicator body (1). A drive motor (10) is mounted on the outer shell of the bracket (9). The output end of the drive motor (10) is connected to the drive shaft (11).

4. The electrode bonding equipment according to claim 1, characterized in that, Both the patch groove (6) and the smoothing groove (7) are spiral-shaped, and a ramp (8) is provided at the connection between the patch groove (6) and the smoothing groove (7).

5. The electrode bonding equipment according to claim 1, characterized in that, A slide block (13) is slidably provided on the outer wall of the top rod (12). A pressure plate (14) is also installed on the top rod (12). A compression spring (15) is sleeved on the outer wall of the top rod (12) between the pressure plate (14) and the slide block (13). The two ends of the compression spring (15) are respectively clamped to the side wall of the pressure plate (14) and the slide block (13). The compression spring (15) is used to keep the top of the top rod (12) in contact with the end face of the patch groove (6) and the smoothing groove (7).

6. The electrode bonding equipment according to claim 5, characterized in that, The slide block (13) has a slide plate (16) installed on its side wall. Several pairs of slide rails (17) are installed on the slide plate (16). The adhesive applicator body (1) is also equipped with a positioning frame (19). A positioning plate (18) is installed on the surface of the positioning frame (19). Several pairs of slide grooves (20) are opened on the positioning plate (18). The slide grooves (20) and the slide rails (17) are both in a straight line state, and the slide rails (17) are slidably arranged on the surface of the slide grooves (20).

7. The electrode bonding equipment according to claim 5, characterized in that, A timing frame (21) is installed on the side wall of the slide (13). A plug rod (22) is movably installed through the end of the timing frame (21). A limiting plate (23) is installed on the top of the plug rod (22). The diameter of the limiting plate (23) is larger than the diameter of the plug rod (22) to prevent the timing frame (21) from separating from the plug rod (22). A timing plate (24) is installed at the bottom of the plug rod (22). A timing shaft (25) is rotatably installed at both ends of the timing plate (24). The bottom of the timing shaft (25) is connected to the rotation center of the turntable (29). The top of the timing shaft (25) is connected to the friction wheel (26).

8. The electrode bonding equipment according to claim 7, characterized in that, The synchronous plate (24) has an inclined plate (31) installed on its side wall. An auxiliary roller (32) is rotatably installed at the end of the inclined plate (31). The bottom of the auxiliary roller (32) is flush with the bottom of the pressing roller (30), and the auxiliary roller (32) is located on the horizontal extension line of the center of a pair of turntables (29). A support frame (28) is installed on the adhesive applicator body (1). The end of the support frame (28) is connected to the friction plate (27).

9. The electrode bonding equipment according to claim 7, characterized in that, The bottom of the slide plate (16) is equipped with a positioning seat (33), and the bottom of the positioning seat (33) is rotatably equipped with a positioning shaft (34). A connecting arm (35) is installed on the positioning shaft (34). Both ends of the connecting arm (35) are provided with strip grooves (36), and a slide rod (37) is slidably arranged inside the strip groove (36). One slide rod (37) is connected to the side wall of the insert rod (22), and the other slide rod (37) is connected to the side wall of the adhesive assembly (4).

10. The electrode bonding process according to claim 1, characterized in that, The electrode bonding equipment according to any one of claims 1 to 9, wherein the electrode bonding process comprises the following steps: Step 1: Equipment debugging and preparation: Place the electrode adhesive applicator on a horizontal working surface and use the pads (3) and anti-slip pads on the bottom support legs (2) of the adhesive applicator body (1) to achieve stable fixation of the equipment; Step 2: Electrode clamping and positioning: Install the electrode to be glued on the take-up and release assembly, and pull one end of the electrode through the tension roller (38) in sequence. Adjust the conveying tension of the take-up and release assembly, and at the same time adjust the tension roller (38) so that the tension roller (38) is in close contact with the bottom of the electrode. Step 3: Start the adhesive application operation: Start the power supply of the equipment, control the take-up and release components and drive motor (10) to start synchronously. The take-up and release components drive the electrode sheet to be transported smoothly at a preset speed. The output end of the drive motor (10) drives the drive shaft (11) and drive roller (5) to rotate at a uniform speed. At this time, the top rod (12) slides against the inner wall of the patch groove (6) under the action of the compression spring (15), and drives the adhesive application component (4) to move along the patch groove (6) with the top rod (12). The adhesive application component (4) remains in contact with the surface of the electrode sheet and synchronously completes the adhesive application operation at the specified position of the electrode sheet. During this process, the slide (13) slides and cooperates with the slide rail (17) on the slide plate (16) and the slide groove (20) on the positioning plate (18) to guide the movement of the adhesive application component (4) and ensure the accuracy of the adhesive application trajectory. Step 4: Linkage switching of adhesive application and smoothing components: When the drive roller (5) continues to rotate and the top rod (12) moves to the connection between the patch groove (6) and the smoothing groove (7), it smoothly transitions into the smoothing groove (7) through the ramp (8); Since the depth of the smoothing groove (7) is higher than that of the patch groove (6), when the top rod (12) slides along the smoothing groove (7), it drives the adhesive application component (4) to move upward, so that the adhesive application component (4) separates from the electrode surface and enters the return state; During the upward movement of the adhesive application component (4), the connecting arm (35) rotates around the positioning shaft (34), driving the synchronous plate (24) and the smoothing component to move downward until the pressing roller (30) and auxiliary roller (32) at the bottom of the smoothing component are in contact with the electrode surface. At this time, the friction wheel (26) at the top of the synchronous shaft (25) and the friction plate (27) are precisely aligned; Step 5: Colloid smoothing operation: When the top rod (12) drives the slide (13) and the synchronous plate (24) to move back along the smoothing groove (7), the friction wheel (26) and the friction plate (27) mesh and contact each other. The friction force generated between the two drives the friction wheel (26) to rotate, and then drives the turntable (29) and the pressing roller (30) to rotate at a constant speed through the synchronous shaft (25); during the rotation of the pressing roller (30), the colloid on the surface of the electrode sheet is pressed and smoothed evenly. Step 6: Component reset and cycle operation: When the top rod (12) rotates with the drive roller (5) to the connection between the smoothing groove (7) and the patch groove (6), it transitions again to the patch groove (6) through the ramp (8). The top rod (12) drives the adhesive application component (4) to move downward and re-attach to the electrode surface.

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