A fully automatic electrode assembly coating hot press and its coating hot pressing process

Abstract

This invention discloses a fully automatic electrode assembly coating hot press and its coating hot press process, including a machine base, a transfer mechanism, a coating device, and a hot press unloading device. The machine base includes two parallel, spaced-apart side sections and a connecting section. The coating device is mounted on the connecting section and includes a coating platform and a coating mechanism. The coating platform is mounted on the connecting section. The transfer mechanism spans above the coating platform. The coating mechanism includes at least two sets, arranged in pairs on both sides of the coating platform. The hot press unloading device includes two sets, respectively mounted on the two sides of the machine base. The hot press unloading device includes a unloading mechanism and a hot press mechanism. This invention achieves automatic switching between pressing the electrode and coating the electrode assembly side during coating, as well as suspended support for the electrode assembly, ensuring the stability of the electrode during coating, effectively simplifying the coating structure, reducing production costs, and achieving simultaneous automatic coating of the electrode assembly's side and top / bottom surfaces through a double-plate side-push coating method with upper and lower spacing.

Description

Technical Field

[0001] This invention relates to the field of automated equipment, and in particular to a fully automatic electrode assembly coating hot press and its coating hot press process. Background Technology

[0002] With the country's vigorous promotion of new energy development, the demand for lithium-ion power batteries from various industries is increasing. The production process of lithium-ion power batteries involves the stacking of positive and negative electrode sheets to form an electrode assembly. During the stacking process, a separator needs to be inserted between adjacent positive or negative electrode sheets to create a barrier. After being separated by the separator, the positive and negative electrode sheets are cross-stacked to form the battery's electrode assembly. The stacked electrode assembly needs to undergo a hot-pressing process for curing. Simultaneously, multiple strips of adhesive tape are wrapped around the four sides of the electrode assembly to secure it for subsequent processing. In the process of automating electrode stacking and coating processes, the following technical challenges exist in the automatic coating and hot pressing design of the stacked electrode assembly: 1. Since the electrode assembly consists of multiple positive and negative electrodes stacked alternately, and the positive and negative electrodes are separated by a diaphragm, there is a problem of electrode or diaphragm position shift during the coating process; 2. The electrode assembly coating process requires coating from all four sides. The traditional coating design requires four coating mechanisms to complete the coating of the four sides of the electrode assembly, which is complex and has high manufacturing costs; 3. Due to the easy misalignment of the electrodes in the electrode assembly, the adhesive paper needs to be wrapped to the sides and top and bottom surfaces during the coating process. The traditional planar support structure can only achieve adhesive paper wrapping on the sides and top surface of the electrode assembly due to motion interference problems. Summary of the Invention

[0003] The technical problem this invention aims to solve is to address the shortcomings of the existing technology by providing a coating platform that integrates rotary function, automatic electrode pressing function, and suspended support structure. This platform enables automatic switching between electrode pressing, electrode group coating side side, and electrode group suspension support during coating, ensuring electrode stability during coating, effectively simplifying the coating structure, reducing production costs, and achieving automatic coating of the electrode group's sides and top and bottom surfaces. It employs a vertical adhesive paper adsorption method and a double-plate side-push coating system with vertical spacing to achieve simultaneous automatic coating of the electrode group's sides and top and bottom surfaces, effectively improving coating efficiency. This fully automatic electrode group coating hot press and its coating hot press process are described.

[0004] The technical solution adopted by this invention is as follows: A fully automatic electrode assembly coating hot press machine includes a machine base, a transfer mechanism, a coating device, and a hot press unloading device; wherein, the machine base has a U-shaped structure, including two parallel and spaced sides and a connecting part perpendicularly connecting the two sides; the coating device is disposed on the connecting part, and the coating device includes a coating platform and a coating mechanism; wherein, the coating platform is disposed on the connecting part along the lateral direction of the perpendicular side; the transfer mechanism is disposed above the coating platform along the lateral direction of the parallel side. This is to allow the stacked electrode assembly to be moved onto or off the coating platform; the coating mechanism includes at least two sets, with each set arranged in pairs on both sides of the coating platform; the hot pressing unloading device includes two sets, respectively arranged on the sides of the machine, forming a dual-channel coating, hot pressing, and unloading mechanism; the hot pressing unloading device includes an unloading mechanism and a hot pressing mechanism, wherein the unloading mechanism is arranged on the side parallel to the side; the hot pressing mechanism includes at least two units, arranged in a straight line to the side of the unloading mechanism.

[0005] Preferably, the coating platform includes a coating linear module and a rotating support slidably mounted on the coating linear module. The coating linear module is horizontally mounted on the connecting part. Two sets of rotating supports are included, each connected to the output end of the coating linear module and driven by the module to move linearly. The rotating support includes a linear drive mechanism, a rotating mechanism, and an electrode pressing mechanism. The linear drive mechanism is connected to the output end of the coating linear module. The rotating mechanism is mounted on the linear drive mechanism and connected to its output end. The linear drive mechanism drives the rotating mechanism to move linearly perpendicular to the coating linear module. The electrode pressing mechanism has a stacked electrode assembly to be coated placed on its electrode support plate. Two sets of electrode pressing mechanisms are respectively mounted at both ends of the rotating mechanism and have springs at both ends. The electrode pressing mechanism presses the electrode from above both ends of the rotating mechanism and uses springs to buffer the pressure, preventing damage to the electrode.

[0006] Preferably, the linear drive mechanism includes a linear slide, a linear motor, and a lead screw holder; wherein, the linear slide is horizontally slidably mounted on the linear module along a direction perpendicular to the linear module, and moves linearly by being driven by the linear module; the linear slide is provided with a linear slide rail; the linear motor is located at one end of the linear slide; a lead screw is provided at the output end of the linear motor, and the lead screw is rotatably mounted on the linear slide, and rotates by being driven by the linear motor; the lead screw holder is slidably connected to the slide rail and connected to the threaded lead screw, and drives the lead screw holder to slide along the linear slide rail when the lead screw rotates.

[0007] Preferably, the rotating mechanism includes a rotary motor, a rotating support, and an electrode support plate; wherein the rotary motor is mounted on a lead screw seat with its output end facing upwards; the rotating support is horizontally mounted on the output end of the rotary motor and rotates under the drive of the rotary motor; the electrode support plate is horizontally mounted on the rotating support, and an electrode assembly is placed on the electrode support plate; the rotating support has a horizontal support portion and a vertical support portion, wherein the horizontal support portion is horizontally mounted on the lead screw seat; the vertical support portion is a U-shaped support block, comprising at least two U-shaped support blocks, which are respectively arranged parallel and spaced apart on the horizontal support portion, forming a coating gap between adjacent U-shaped support blocks, and the coating mechanism extends into the coating gap to wrap sheet adhesive paper from the side onto the upper and lower surfaces of the stacked electrode assembly.

[0008] Preferably, the electrode pressing mechanism includes an electrode pressing cylinder, an electrode lifting seat, and an electrode pressing plate; wherein, the electrode pressing cylinder is mounted on a horizontal support; the electrode lifting seat is connected to the output end of the electrode pressing cylinder and is driven to move up and down by the electrode pressing cylinder; vertical springs are provided at both ends of the electrode lifting seat to buffer the force transmitted by the electrode pressing cylinder when the electrode pressing cylinder drives the electrode lifting seat to move up and down; the electrode pressing plate is horizontally connected to the upper end of the electrode lifting seat and moves up and down with the electrode lifting seat; the electrode pressing plate descends to press the stacked electrode assembly on the electrode support plate to stabilize the coating.

[0009] Preferably, the coating mechanism includes a coating support, a tape pulling assembly, a coating drive assembly, and a coating assembly; wherein, the coating support is disposed on the machine platform, and a vertically upward extending support plate is formed on the coating support; the tape pulling assembly is disposed on the upper side of the coating support, and the tape pulling assembly pulls the wound tape downward; the coating drive assembly is disposed on the lower side of the coating support; the coating assembly is disposed on the coating drive assembly, and the coating drive assembly drives the coating assembly to move linearly in the horizontal plane and move up and down in the vertical direction, and the coating assembly picks up the tape from below the tape pulling assembly and wraps the tape over the side of the electrode assembly on the coating platform.

[0010] Preferably, the adhesive stretching assembly includes a film roll, support rollers, an adhesive stretching module, an adhesive stretching slide, an adhesive clamping cylinder, and clamping blocks; wherein, the film roll is rotatably mounted on the side wall of the adhesive support, and adhesive tape is wound on the film roll; the support rollers include at least two rollers, which are mounted on the side wall of the adhesive support, and the adhesive tape is pulled out from the film roll, passes through the support rollers, and is tensioned by the support rollers; the adhesive stretching module is vertically mounted on the other side wall of the adhesive support, and the adhesive stretching slide is slidably connected to the adhesive stretching module and connected to the output end of the adhesive stretching module; the adhesive clamping cylinder is mounted on the adhesive stretching slide, and the clamping blocks include two blocks, which are connected to the output end of the clamping cylinder and are opened and closed by the clamping cylinder to clamp the adhesive tape; the adhesive stretching module drives the clamping blocks to move downward, thereby pulling the adhesive tape downward.

[0011] Preferably, the overmolding drive assembly includes a first linear module, a second linear module, a first slide block, a push cylinder, and a second slide block; wherein, the first linear module is horizontally disposed on the lower part of one side of the overmolding support; the second linear module is slidably disposed on the first linear module in a vertical direction and is driven to move up and down by the first linear module; the first slide block is slidably disposed on the second linear module and is driven to move up and down by the second linear module; the push cylinder is horizontally disposed on the side of the first slide block in a direction perpendicular to the first linear module and moves up and down with the first slide block; the second slide block is disposed on the side of the push cylinder and connected to the output end of the push cylinder, and is driven to move linearly by the push cylinder.

[0012] Preferably, the coating assembly includes a coating support plate, a coating cylinder, a coating slide plate, a coating suction seat, a coating partition plate, a coating roller, and an upward push cylinder; wherein, the coating support plate is horizontally mounted on a second slide block, and a slide rail is provided at the bottom of the coating support plate; the coating cylinder is mounted on the coating support plate; the coating slide plate is mounted on the lower part of the coating support plate and is slidably connected to the slide rail at the bottom of the coating support plate, and is connected to the output end of the coating cylinder, and slides along the slide rail driven by the coating cylinder; one end of the coating suction seat is connected to the coating slide plate, and the other end extends horizontally outward, forming an installation gap between the coating suction seat and the coating slide plate, and a vacuum suction hole is provided on the outer end face of the coating suction seat to adsorb and fix the adhesive paper to be coated; the above The rubber-coated partition is set within the installation gap. One end of the rubber-coated partition is rotatably connected to the rubber-coated slide plate, and the other end extends outward. The rubber-coated roller is rotatably set at the other end of the rubber-coated partition. The upward-pushing cylinder is vertically set at the lower part of the rubber-coated suction seat, and its output end extends upward through the rubber-coated suction seat to push the rubber-coated partition. After the rubber-coated suction seat absorbs the adhesive paper, the rubber-coated cylinder drives the rubber-coated slide plate to move the rubber-coated suction seat from the outside to approach the electrode assembly, so that the electrode assembly extends into the space between the rubber-coated slide plate and the rubber-coated partition. The rubber-coated slide plate continues to move, and the adhesive paper is pressed onto the upper and lower surfaces of the electrode assembly by the rubber-coated rollers at the ends of the rubber-coated slide plate and the rubber-coated partition, respectively. The upward-pushing cylinder provides an upward thrust to the rubber-coated partition to make the rubber-coated roller roll the electrode assembly.

[0013] Preferably, the unloading mechanism includes an unloading linear module and an unloading module, wherein the unloading linear module is disposed on the side of the machine tool along a linear direction; the unloading module is slidably disposed on the unloading linear module and moves linearly by being driven by the unloading linear module; the unloading module includes an unloading cylinder and upper and lower grippers horizontally connected thereto, the unloading cylinder drives the upper and lower grippers to clamp and remove the electrode assembly from the coating platform and move it to the hot pressing mechanism.

[0014] Preferably, the hot pressing mechanism includes a hot pressing base, a hot pressing cylinder, and a hot pressing plate. The hot pressing base is disposed on the side of the unloading module, and a recessed hot pressing space is formed on the side of the hot pressing base near the unloading module. The unloading module places the electrode assembly to be hot pressed into the hot pressing space. The hot pressing cylinder is vertically disposed on the hot pressing base, and its output end extends downward through the hot pressing base into the hot pressing space. The hot pressing plate is horizontally disposed in the hot pressing space and is connected to the output end of the hot pressing cylinder. The hot pressing cylinder drives the hot pressing plate to descend, thereby hot pressing the electrode assembly.

[0015] A fully automatic electrode assembly coating hot pressing machine includes the following process steps:

[0016] S1. Loading: After the electrode assembly formed by stacking is taken out from the previous station by the transfer mechanism, it is placed on the two rotating platforms of the coating platform.

[0017] S2, Electrode assembly: The rotating support in step S1 presses the electrode assembly placed on it from both ends and moves it between two spaced-apart coating mechanisms;

[0018] S3, Glue pulling: The glue pulling component of the coating mechanism pulls the wound tape downwards in the vertical direction;

[0019] S4. Take the adhesive tape: After the tape is pulled out in step S3, the tape wrapping mechanism drives the tape wrapping component to approach the tape from the side and pick up the adhesive tape adhering to the tape.

[0020] S5. Coating: After the coating paper is picked up in step S4, the coating drive mechanism set on both sides of the coating platform drives it to move towards the coating platform. After the vertically adsorbed adhesive paper is attached to the outer side of the electrode group after being pressed in step S2, the coating cylinder of the coating mechanism drives the coating slide to continue to move horizontally, so that the electrode group is embedded in the space between the coating slide and the coating support plate. The coating slide continues to move, and the adhesive paper is pressed onto the upper and lower surfaces of the electrode group by the coating rollers at the ends of the coating slide and the coating support plate, respectively. The upward push cylinder provides an upward thrust to the coating support plate so that the coating roller rolls the electrode group, completing the coating paper coating.

[0021] S6. Coating side switching: After the coating of one set of symmetrical sides of the electrode group is completed in step S5, the rotating platform drives the electrode group to rotate 90°, so that the other set of uncoated symmetrical sides of the electrode group are aligned with the two coating mechanisms. The coating mechanism repeats steps S3 to S5, so that the other set of symmetrical sides of the electrode group is coated.

[0022] S7. Hot pressing: After the electrode assembly is coated in step S6, it is taken out from the coating platform by the feeding mechanism and transferred to the hot pressing mechanism. The electrode assembly is then hot pressed by the hot pressing mechanism.

[0023] S8. Unloading: After the electrode assembly is hot-pressed in step S7, it is taken out by the unloading mechanism and moved for unloading.

[0024] The beneficial effects of this invention are as follows:

[0025] This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing a coating platform that integrates rotary functions, automatic electrode pressing functions, and a suspended support structure. This platform enables automatic switching between electrode pressing, electrode group coating side-by-side switching, and electrode group suspension support during coating, ensuring electrode stability during coating. It effectively simplifies the coating structure, reduces production costs, and achieves automatic coating of the electrode group's sides and top and bottom surfaces. Utilizing a vertical adhesive paper adsorption method, it achieves simultaneous automatic coating of the electrode group's sides and top and bottom surfaces through a double-plate side-pushing coating system with vertical spacing, effectively improving coating efficiency. This fully automatic electrode group coating hot press and its coating hot pressing process are described. This invention realizes the automatic coating and hot pressing process of the electrode assembly after stacking. The invention adopts a dual-channel structure design. By designing the machine into a U-shaped structure, hot pressing and unloading devices are arranged in a straight line on both sides of the machine. A coating platform and coating mechanism are set at the connection of the machine. Two sets of coating mechanisms are symmetrically set on both sides of the coating platform, corresponding to the two sides. After the two sets of coating mechanisms independently complete the coating process, the hot pressing and unloading process of the electrode assembly is realized simultaneously through the two channels. Compared with the traditional process, the production efficiency is increased by 200% through this dual-channel independent coating, hot pressing and unloading.

[0026] Addressing the requirements of automated coating and hot-pressing processes for electrode assemblies, the originality of this invention lies primarily in its coating platform and coating mechanism. Specifically, the coating platform employs a dual-platform structure, suitable for dual-station electrode coating, effectively improving coating efficiency. It features horizontal rotation, enabling switching between different sides of the electrode assembly during coating, effectively simplifying the structural design of the coating mechanism and enhancing coating efficiency. Furthermore, it utilizes a hollowed-out support for the electrode assembly, suitable for multi-site coating processes on a single side of the electrode assembly. The entire coating platform uses a linear module as its load-bearing support structure. Each linear module has two rotating supports, which independently drive the two rotating supports to move to the two coating stations, achieving dual-station coating. The rotating support includes a linear drive mechanism, a rotating mechanism, and an electrode plate mechanism. The linear drive mechanism is directly connected to the output end of the linear module, and its orientation is perpendicular to that of the linear module. It provides a linear driving force perpendicular to the direction of the linear module in the horizontal plane. The linear drive mechanism and the linear module form horizontal drives in the X and Y directions in the horizontal plane. The rotating mechanism is horizontally mounted on the linear drive mechanism, with its rotary motor output end facing upwards. The rotating support of the rotating mechanism is mounted on the output end of the rotary motor. The rotating support includes a horizontal support portion and a vertical support portion. The support is horizontally positioned, while the vertical support adopts a vertically positioned U-shaped support structure. The U-shaped support blocks consist of multiple blocks, which are arranged parallel and spaced apart on the horizontal support. An electrode support plate is horizontally positioned on the upper part of the U-shaped support block, and the electrode assembly to be coated is placed horizontally on the electrode support plate. A rotary motor drives the rotating support and the electrode support plate to drive the electrode assembly to rotate, thereby realizing the switching of different coating sides. In addition, adjacent U-shaped support blocks form a coating gap. This structural design saves materials and facilitates the insertion of the coating mechanism into the coating gap during coating, so that the adhesive paper can cover the upper and lower surfaces of the adhesive paper, realizing coating at multiple points on one side.

[0027] The present invention relates to a coating mechanism comprising a coating drive assembly, a coating assembly, and a tape pulling assembly. The coating mechanism uses a coating support as the overall load-bearing structure. The tape pulling assembly is located on the upper part of the coating support, the coating drive assembly is located on the lower part of the coating support, and the coating assembly is located in the middle of the coating support and connected to the output end of the coating drive assembly. The coating drive assembly enables linear drive of the coating assembly in the X and Y directions in the horizontal plane, and simultaneously drives the coating assembly to move vertically up and down. The tape pulling assembly of the present invention winds adhesive tape with adhesive paper attached using a film roll. The tape end passes through multiple support rollers set on the side wall of the coating support, is tensioned, and extends downwards. The tape pulling assembly drives a clamping cylinder to move vertically up and down via a vertically arranged tape pulling module. After the clamping cylinder clamps the tape via a drive clamping block, the tape pulling module drives the clamping cylinder to descend, achieving automatic tape pulling out. The coating assembly of this invention uses a coating support plate as a load-bearing structure. A slide rail is provided at the bottom of the coating support plate, and a coating slide plate is slidably connected to the slide rail. A coating cylinder is provided at the top of the coating support plate, and the output end of the coating cylinder is connected to the coating slide plate, driving the coating slide plate to slide linearly. The coating slide plate adopts a strip-shaped plate structure with its ends extending horizontally. In addition, a coating suction seat is connected to the bottom of the coating slide plate, and the coating suction seat is spaced apart from the coating slide plate. A vacuum adsorption area is provided on the end face of the coating suction seat, which uses vacuum negative pressure to vertically adsorb the adhesive paper on the tape pulled out by the adhesive application assembly. Furthermore, a coating support plate is provided between the coating slide plate and the coating suction seat, forming a double-layer spaced plate structure. One end of the coating support plate is rotatably connected to the coating slide plate, and a coating roller is rotatably provided at the other end of the coating support plate. When the coating slide moves the coating suction seat and coating support plate in a straight line towards the electrode assembly, the electrode assembly abuts against the adhesive paper embedded in the gap between the coating slide and the coating support plate. As the coating slide and the coating support plate continue to move, the adhesive paper gradually bends. At the same time, the upward-pushing cylinder set at the bottom of the coating suction seat pushes the coating support plate upward, causing the coating roller to push the electrode assembly from below, so that the electrode assembly is pressed against the bottom surface of the coating slide. The coating slide and the coating support plate continue to move, and the coating slide and the coating roller roll and press the adhesive paper onto the upper and lower surfaces of the electrode assembly. Attached Figure Description

[0028] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0029] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0030] Figure 3 This is one of the schematic diagrams of the coating platform structure of the present invention.

[0031] Figure 4 This is the second schematic diagram of the coating platform structure of the present invention.

[0032] Figure 5 This is one of the structural schematic diagrams of the coating device of the present invention.

[0033] Figure 6 This is one of the schematic diagrams of the coating mechanism of the present invention.

[0034] Figure 7 This is the second schematic diagram of the coating mechanism of the present invention.

[0035] Figure 8 This is the third schematic diagram of the coating mechanism of the present invention.

[0036] Figure 9 This is one of the schematic diagrams of the overmolded component structure of the present invention.

[0037] Figure 10 This is the second schematic diagram of the overmolded component structure of the present invention.

[0038] Figure 11 This is one of the schematic diagrams of the hot pressing feeding mechanism of the present invention.

[0039] Figure 12 This is the second schematic diagram of the hot pressing feeding mechanism of the present invention. Detailed Implementation

[0040] The present invention will now be further described with reference to the accompanying drawings:

[0041] like Figures 1 to 12 As shown, the technical solution adopted by the present invention is as follows: A fully automatic electrode assembly coating hot press machine includes a machine base 1, a transfer mechanism 2, a coating device, and a hot press unloading device; wherein, the machine base 1 has a U-shaped structure, including two parallel and spaced sides and a connecting part perpendicularly connecting the two sides; the coating device is disposed on the connecting part, and the coating device includes a coating platform 3 and a coating mechanism 4; wherein, the coating platform 3 is disposed on the connecting part along the side direction of the perpendicular side; the transfer mechanism 2 is disposed above the coating platform 3 along the side direction of the parallel side. This is to allow the stacked electrode assembly to be moved onto or away from the coating platform 3; the coating mechanism 4 includes at least two sets, with each set arranged in pairs on both sides of the coating platform 3; the hot pressing unloading device includes two sets, respectively arranged on the sides of the machine base 1, forming a dual-channel coating, hot pressing, and unloading; the hot pressing unloading device includes an unloading mechanism 5 and a hot pressing mechanism 6, wherein the unloading mechanism 5 is arranged on the side parallel to the side; the hot pressing mechanism 6 includes at least two, arranged in a straight line to the side of the unloading mechanism 5.

[0042] The coating platform 3 includes a coating linear module 31 and a rotating support slidably mounted on the coating linear module 31. The coating linear module 31 is horizontally mounted on the connecting part. The rotating support includes two sets, which are connected to the output end of the coating linear module 31 and are driven by the coating linear module 31 to move linearly. The rotating support includes a linear drive mechanism, a rotating mechanism, and an electrode pressing mechanism. The linear drive mechanism is connected to the output end of the coating linear module 31. The rotating mechanism is mounted on the linear drive mechanism and connected to the output end of the linear drive mechanism. The linear drive mechanism drives the rotating mechanism to move linearly in a direction perpendicular to the coating linear module 31. The electrode support plate 310 of the rotating mechanism holds the stacked electrode assembly to be coated. The electrode pressing mechanism includes two sets, which are respectively mounted at both ends of the rotating mechanism and have springs at both ends. The electrode pressing mechanism presses the electrode from above both ends of the rotating mechanism and uses springs to buffer the pressure to prevent damage to the electrode.

[0043] The linear drive mechanism includes a linear slide 32, a linear motor 33, and a lead screw seat 34. The linear slide 32 is horizontally slidably mounted on the linear module 31 along a direction perpendicular to the linear module 31 and moves linearly via the linear module 31. The linear slide 32 is provided with a linear slide rail. The linear motor 33 is located at one end of the linear slide 32. A lead screw is provided at the output end of the linear motor 33 and is rotatably mounted on the linear slide 32. The lead screw is driven to rotate by the linear motor 33. The lead screw seat 34 is slidably connected to the slide rail and connected to the threaded lead screw. When the lead screw rotates, it drives the lead screw seat 34 to slide along the linear slide rail.

[0044] The rotating mechanism includes a rotary motor 38, a rotating support 39, and an electrode support plate 310. The rotary motor 38 is mounted on a lead screw seat 34 with its output end facing upwards. The rotating support 39 is horizontally mounted on the output end of the rotary motor 38 and is driven to rotate by the rotary motor 38. The electrode support plate 310 is horizontally mounted on the rotating support 39, and an electrode assembly is placed on the electrode support plate 310. The rotating support 39 has a horizontal support portion and a vertical support portion. The horizontal support portion is horizontally mounted on the lead screw seat 34. The vertical support portion is a U-shaped support block, which includes at least two U-shaped support blocks, which are respectively arranged in parallel at intervals on the horizontal support portion. An adhesive-coating gap is formed between adjacent U-shaped support blocks. An adhesive-coating mechanism extends into the adhesive-coating gap to cover the upper and lower surfaces of the stacked electrode assembly from the side with sheet adhesive paper.

[0045] The electrode pressing mechanism includes an electrode pressing cylinder 35, an electrode lifting seat 36, and an electrode pressing plate 37. The electrode pressing cylinder 35 is mounted on a horizontal support. The electrode lifting seat 36 is connected to the output end of the electrode pressing cylinder 35 and is driven to move up and down by the electrode pressing cylinder 35. Vertical springs are provided at both ends of the electrode lifting seat 36 to buffer the force transmitted by the electrode pressing cylinder 35 when it is driven to move up and down. The electrode pressing plate 37 is horizontally connected to the upper end of the electrode lifting seat 36 and moves up and down with the electrode lifting seat 36. The electrode pressing plate 37 descends to press the stacked electrode assembly on the electrode support plate 310 to stabilize the coating.

[0046] The coating mechanism 4 includes a coating support 41, a tape pulling assembly, a coating drive assembly, and a coating assembly. The coating support 41 is mounted on the machine base 1, and a vertically upward-extending support plate is formed on the coating support 41. The tape pulling assembly is located on the upper side of the coating support 41 and pulls the wound tape downward. The coating drive assembly is located on the lower side of the coating support 41. The coating assembly is mounted on the coating drive assembly and drives the coating assembly to move linearly in the horizontal plane and move up and down in the vertical direction. The coating assembly picks up the tape from below the tape pulling assembly and wraps the tape around the side of the electrode assembly on the coating platform 3.

[0047] The adhesive stretching assembly includes a film roll 418, support rollers 419, an adhesive stretching module 414, an adhesive stretching slide 415, an adhesive clamping cylinder 416, and a clamping block 417. The film roll 418 is rotatably mounted on the side wall of the adhesive support 41, and adhesive tape is wound on the film roll 418. The support rollers 419 include at least two rollers, and are mounted on the side wall of the adhesive support 41. The adhesive tape is pulled from the film roll 418, passes through the support rollers 419, and is tensioned by the support rollers 419. The adhesive stretching module 414... 14 is vertically mounted on the other side wall of the rubber-coating support 41. The rubber-pulling slide 415 is slidably connected to the rubber-pulling module 414 and connected to the output end of the rubber-pulling module 414. The aforementioned rubber-clamping cylinder 416 is mounted on the rubber-pulling slide 415. Two clamping blocks 417 are included. The two clamping blocks 417 are connected to the output end of the rubber-clamping cylinder 416 and are opened and closed by the rubber-clamping cylinder 416 to clamp the rubber tape. The rubber-pulling module 414 drives the clamping blocks 417 to move downward, thereby pulling the rubber tape downward.

[0048] The overmolding drive assembly includes a first linear module 42, a second linear module 43, a first slide block 44, a push cylinder 45, and a second slide block 46. The first linear module 42 is horizontally disposed on the lower side of one side of the overmolding support 41. The second linear module 43 is slidably disposed vertically on the first linear module 42 and is driven to move up and down by the first linear module 42. The first slide block 44 is slidably disposed on the second linear module 43 and is driven to move up and down by the second linear module 43. The push cylinder 45 is horizontally disposed on the side of the first slide block 44 in a direction perpendicular to the first linear module 42 and moves up and down with the first slide block 44. The second slide block 46 is disposed on the side of the push cylinder 45 and connected to the output end of the push cylinder 45, and is driven to move linearly by the push cylinder 45.

[0049] The coating assembly includes a coating support plate 47, a coating cylinder 48, a coating slide plate 49, a coating suction seat 410, a coating partition plate 411, a coating roller 412, and an upward push cylinder 413. The coating support plate 47 is horizontally mounted on a second slide block 46, and a slide rail is provided at the bottom of the support plate 47. The coating cylinder 48 is mounted on the coating support plate 47. The coating slide plate 49 is located at the lower part of the coating support plate 47 and is slidably connected to the slide rail at the bottom of the support plate 47. It is connected to the output end of the coating cylinder 48 and is driven by the cylinder to slide along the slide rail. One end of the coating suction seat 410 is connected to the coating slide plate 49, and the other end extends horizontally outward. An installation gap is formed between the suction seat 410 and the coating slide plate 49. Vacuum suction holes are provided on the outer end face of the suction seat 410 to adsorb and fix the adhesive paper a to be coated. The coating partition plate 411 is provided with… Placed within the installation gap, one end of the rubber-coated partition 411 is rotatably connected to the rubber-coated slide plate 49, and the other end extends outward; the aforementioned rubber-coated roller 412 is rotatably disposed at the other end of the rubber-coated partition 411; the aforementioned upward-pushing cylinder 413 is vertically disposed at the lower part of the rubber-coated suction seat 410, and its output end extends upward through the rubber-coated suction seat 410 to push the rubber-coated partition 411 upward; after the rubber-coated suction seat 410 adsorbs the adhesive paper a, the rubber-coated cylinder 48 drives the rubber-coated slide plate 49 to move the rubber-coated suction seat 410 from the outside to approach the electrode assembly, so that the electrode assembly extends into the space between the rubber-coated slide plate 49 and the rubber-coated partition 411. The rubber-coated slide plate 49 continues to move, and the adhesive paper a is rolled onto the upper and lower surfaces of the electrode assembly by the rubber-coated roller 412 at the ends of the rubber-coated slide plate 49 and the rubber-coated partition 411, respectively, and the upward-pushing cylinder 413 provides an upward thrust to the rubber-coated partition 411 to make the rubber-coated roller 412 roll the electrode assembly upward.

[0050] The unloading mechanism 5 includes an unloading linear module 51 and an unloading module 52. The unloading linear module 51 is arranged on the side of the machine base 1 along a straight direction. The unloading module 52 is slidably arranged on the unloading linear module 51 and moves linearly by being driven by the unloading linear module 51. The unloading module 52 includes an unloading cylinder and upper and lower grippers horizontally connected thereto. The unloading cylinder drives the upper and lower grippers to clamp and remove the electrode assembly from the coating platform 3 and move it to the hot pressing mechanism 6.

[0051] The hot pressing mechanism 6 includes a hot pressing base 61, a hot pressing cylinder 62, and a hot pressing plate. The hot pressing base 61 is disposed on the side of the unloading module 52. The side of the hot pressing base 61 near the unloading module 52 has an inwardly recessed hot pressing space. The unloading module 52 places the electrode assembly to be hot pressed into the hot pressing space. The hot pressing cylinder 62 is vertically disposed on the hot pressing base 61, and its output end extends downward through the hot pressing base 61 into the hot pressing space. The hot pressing plate is horizontally disposed in the hot pressing space and is connected to the output end of the hot pressing cylinder 62. The hot pressing cylinder 62 drives the hot pressing plate to descend and hot press the electrode assembly.

[0052] A fully automatic electrode assembly coating hot pressing machine includes the following process steps:

[0053] S1. Loading: After the electrode assembly formed by stacking is taken out from the previous station by the transfer mechanism, it is placed on the two rotating platforms of the coating platform.

[0054] S2, Electrode assembly: The rotating support in step S1 presses the electrode assembly placed on it from both ends and moves it between two spaced-apart coating mechanisms;

[0055] S3, Glue pulling: The glue pulling component of the coating mechanism pulls the wound tape downwards in the vertical direction;

[0056] S4. Take the adhesive tape: After the tape is pulled out in step S3, the tape wrapping mechanism drives the tape wrapping component to approach the tape from the side and pick up the adhesive tape adhering to the tape.

[0057] S5. Coating: After the coating paper is picked up in step S4, the coating drive mechanism set on both sides of the coating platform drives it to move towards the coating platform. After the vertically adsorbed adhesive paper is attached to the outer side of the electrode group after being pressed in step S2, the coating cylinder of the coating mechanism drives the coating slide to continue to move horizontally, so that the electrode group is embedded in the space between the coating slide and the coating support plate. The coating slide continues to move, and the adhesive paper is pressed onto the upper and lower surfaces of the electrode group by the coating rollers at the ends of the coating slide and the coating support plate, respectively. The upward push cylinder provides an upward thrust to the coating support plate so that the coating roller rolls the electrode group, completing the coating paper coating.

[0058] S6. Coating side switching: After the coating of one set of symmetrical sides of the electrode group is completed in step S5, the rotating platform drives the electrode group to rotate 90°, so that the other set of uncoated symmetrical sides of the electrode group are aligned with the two coating mechanisms. The coating mechanism repeats steps S3 to S5, so that the other set of symmetrical sides of the electrode group is coated.

[0059] S7. Hot pressing: After the electrode assembly is coated in step S6, it is taken out from the coating platform by the feeding mechanism and transferred to the hot pressing mechanism. The electrode assembly is then hot pressed by the hot pressing mechanism.

[0060] S8. Unloading: After the electrode assembly is hot-pressed in step S7, it is taken out by the unloading mechanism and moved for unloading.

[0061] Furthermore, this invention designs a coating platform that integrates rotary function, automatic electrode pressing function, and suspended support structure. This platform enables automatic switching between electrode pressing, electrode group coating side and suspended support during coating, ensuring electrode stability during coating, effectively simplifying the coating structure, reducing production costs, and achieving automatic coating of the sides and top and bottom surfaces of the electrode group. It adopts a vertical adsorption method for adhesive paper and achieves synchronous automatic coating of the sides and top and bottom surfaces of the electrode group through double-plate side-pushing coating with upper and lower intervals, effectively improving coating efficiency. This fully automatic electrode group coating hot press and its coating hot press process are described. This invention realizes the automatic coating and hot pressing process of the electrode assembly after stacking. The invention adopts a dual-channel structure design. By designing the machine into a U-shaped structure, hot pressing and unloading devices are arranged in a straight line on both sides of the machine. A coating platform and coating mechanism are set at the connection of the machine. Two sets of coating mechanisms are symmetrically set on both sides of the coating platform, corresponding to the two sides. After the two sets of coating mechanisms independently complete the coating process, the hot pressing and unloading process of the electrode assembly is realized simultaneously through the two channels. Compared with the traditional process, the production efficiency is increased by 200% through this dual-channel independent coating, hot pressing and unloading.

[0062] Addressing the requirements of automated coating and hot-pressing processes for electrode assemblies, the originality of this invention lies primarily in its coating platform and coating mechanism. Specifically, the coating platform employs a dual-platform structure, suitable for dual-station electrode coating, effectively improving coating efficiency. It features horizontal rotation, enabling switching between different sides of the electrode assembly during coating, effectively simplifying the structural design of the coating mechanism and enhancing coating efficiency. Furthermore, it utilizes a hollowed-out support for the electrode assembly, suitable for multi-site coating processes on a single side of the electrode assembly. The entire coating platform uses a linear module as its load-bearing support structure. Each linear module has two rotating supports, which independently drive the two rotating supports to move to the two coating stations, achieving dual-station coating. The rotating support includes a linear drive mechanism, a rotating mechanism, and an electrode plate mechanism. The linear drive mechanism is directly connected to the output end of the linear module, and its orientation is perpendicular to that of the linear module. It provides a linear driving force perpendicular to the direction of the linear module in the horizontal plane. The linear drive mechanism and the linear module form horizontal drives in the X and Y directions in the horizontal plane. The rotating mechanism is horizontally mounted on the linear drive mechanism, with its rotary motor output end facing upwards. The rotating support of the rotating mechanism is mounted on the output end of the rotary motor. The rotating support includes a horizontal support portion and a vertical support portion. The support is horizontally positioned, while the vertical support adopts a vertically positioned U-shaped support structure. The U-shaped support blocks consist of multiple blocks, which are arranged parallel and spaced apart on the horizontal support. An electrode support plate is horizontally positioned on the upper part of the U-shaped support block, and the electrode assembly to be coated is placed horizontally on the electrode support plate. A rotary motor drives the rotating support and the electrode support plate to drive the electrode assembly to rotate, thereby realizing the switching of different coating sides. In addition, adjacent U-shaped support blocks form a coating gap. This structural design saves materials and facilitates the insertion of the coating mechanism into the coating gap during coating, so that the adhesive paper can cover the upper and lower surfaces of the adhesive paper, realizing coating at multiple points on one side.

[0063] The present invention relates to a coating mechanism comprising a coating drive assembly, a coating assembly, and a tape pulling assembly. The coating mechanism uses a coating support as the overall load-bearing structure. The tape pulling assembly is located on the upper part of the coating support, the coating drive assembly is located on the lower part of the coating support, and the coating assembly is located in the middle of the coating support and connected to the output end of the coating drive assembly. The coating drive assembly enables linear drive of the coating assembly in the X and Y directions in the horizontal plane, and simultaneously drives the coating assembly to move vertically up and down. The tape pulling assembly of the present invention winds adhesive tape with adhesive paper attached using a film roll. The tape end passes through multiple support rollers set on the side wall of the coating support, is tensioned, and extends downwards. The tape pulling assembly drives a clamping cylinder to move vertically up and down via a vertically arranged tape pulling module. After the clamping cylinder clamps the tape via a drive clamping block, the tape pulling module drives the clamping cylinder to descend, achieving automatic tape pulling out. The coating assembly of this invention uses a coating support plate as a load-bearing structure. A slide rail is provided at the bottom of the coating support plate, and a coating slide plate is slidably connected to the slide rail. A coating cylinder is provided at the top of the coating support plate, and the output end of the coating cylinder is connected to the coating slide plate, driving the coating slide plate to slide linearly. The coating slide plate adopts a strip-shaped plate structure with its ends extending horizontally. In addition, a coating suction seat is connected to the bottom of the coating slide plate, and the coating suction seat is spaced apart from the coating slide plate. A vacuum adsorption area is provided on the end face of the coating suction seat, which uses vacuum negative pressure to vertically adsorb the adhesive paper on the tape pulled out by the adhesive application assembly. Furthermore, a coating support plate is provided between the coating slide plate and the coating suction seat, forming a double-layer spaced plate structure. One end of the coating support plate is rotatably connected to the coating slide plate, and a coating roller is rotatably provided at the other end of the coating support plate. When the coating slide moves the coating suction seat and coating support plate in a straight line towards the electrode assembly, the electrode assembly abuts against the adhesive paper embedded in the gap between the coating slide and the coating support plate. As the coating slide and the coating support plate continue to move, the adhesive paper gradually bends. At the same time, the upward-pushing cylinder set at the bottom of the coating suction seat pushes the coating support plate upward, causing the coating roller to push the electrode assembly from below, so that the electrode assembly is pressed against the bottom surface of the coating slide. The coating slide and the coating support plate continue to move, and the coating slide and the coating roller roll and press the adhesive paper onto the upper and lower surfaces of the electrode assembly.

[0064] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. A fully automatic electrode assembly coating hot press, characterized in that: The device includes a machine base (1), a transfer mechanism (2), a coating device, and a hot-press unloading device. The machine base (1) has a U-shaped structure, including two parallel side sections and a connecting section that vertically connects the two side sections. The coating device is mounted on the connecting section and includes a coating platform (3) and a coating mechanism (4). The coating platform (3) is mounted on the connecting section along the side direction of the vertical side section. The transfer mechanism (2) is mounted above the coating platform (3) along the side direction of the parallel side section to move the stacked electrode assembly onto or off the coating. Platform (3); the above-mentioned coating mechanism (4) includes at least two sets, and the coating mechanisms (4) are respectively set on both sides of the coating platform (3); the above-mentioned hot pressing feeding device includes two sets, which are respectively set on both sides of the machine (1) to form a double channel coating, hot pressing and feeding; the hot pressing feeding device includes feeding mechanism (5) and hot pressing mechanism (6), wherein the above-mentioned feeding mechanism (5) is set on the side along the side direction parallel to the side; the above-mentioned hot pressing mechanism (6) includes at least two, and the hot pressing mechanism (6) is set on the side of the feeding mechanism (5) along the straight direction.

2. The fully automatic electrode assembly coating hot press according to claim 1, characterized in that: The coating platform (3) includes a coating linear module (31) and a rotating support slidably mounted on the coating linear module (31). The coating linear module (31) is horizontally mounted on the connecting part. The rotating support includes two sets, which are connected to the output end of the coating linear module (31) and move linearly driven by the coating linear module (31). The rotating support includes a linear drive mechanism, a rotating mechanism, and a pressure plate mechanism. The linear drive mechanism is connected to the output end of the coating linear module (31). At the output end; the above-mentioned rotating mechanism is set on the linear drive mechanism and connected to the output end of the linear drive mechanism. The linear drive mechanism drives the rotating mechanism to move linearly in a direction perpendicular to the coating linear module (31). The electrode support plate (310) of the rotating mechanism has a stacked electrode group to be coated. The above-mentioned pressing electrode mechanism includes two sets. The two pressing electrode mechanisms are respectively set at both ends of the rotating mechanism and springs are provided at both ends. The pressing electrode mechanism presses the electrode from above both ends of the rotating mechanism and buffers the pressure through the springs to prevent the electrode from being crushed.

3. The fully automatic electrode assembly coating hot press according to claim 2, characterized in that: The linear drive mechanism includes a linear slide (32), a linear motor (33), and a lead screw seat (34); wherein, the linear slide (32) is horizontally slidably mounted on the linear module (31) in a direction perpendicular to the linear module (31), and moves linearly by being driven by the linear module (31); the linear slide (32) is provided with a linear slide rail; the linear motor (33) is mounted at one end of the linear slide (32); the output end of the linear motor (33) is provided with a lead screw, which is rotatably mounted on the linear slide (32), and the lead screw is driven to rotate by the linear motor (33); the lead screw seat (34) is slidably connected to the slide rail and connected to the threaded lead screw, and when the lead screw rotates, it drives the lead screw seat (34) to slide along the linear slide rail.

4. The fully automatic electrode assembly coating hot press according to claim 3, characterized in that: The rotating mechanism includes a rotary motor (38), a rotating support (39), and an electrode support plate (310); wherein the rotary motor (38) is mounted on a lead screw seat (34) with its output end facing upward; the rotating support (39) is horizontally mounted on the output end of the rotary motor (38) and is driven to rotate by the rotary motor (38); the electrode support plate (310) is horizontally mounted on the rotating support (39), and an electrode assembly is placed on the electrode support plate (310); the rotating support (39) has a horizontal support part and a vertical support part, wherein the horizontal support part is horizontally mounted on the lead screw seat (34); the vertical support part is a U-shaped support block, which includes at least two U-shaped support blocks, which are respectively arranged in parallel at intervals on the horizontal support part, and an adhesive-coating gap is formed between adjacent U-shaped support blocks. The adhesive-coating mechanism extends into the adhesive-coating gap and wraps the sheet adhesive paper from the side to the upper and lower surfaces of the stacked electrode assembly.

5. The fully automatic electrode assembly coating hot press according to claim 4, characterized in that: The electrode pressing mechanism includes an electrode pressing cylinder (35), an electrode lifting seat (36), and an electrode pressing plate (37). The electrode pressing cylinder (35) is mounted on a horizontal support. The electrode lifting seat (36) is connected to the output end of the electrode pressing cylinder (35) and is driven to move up and down by the electrode pressing cylinder (35). Vertical springs are provided at both ends of the electrode lifting seat (36) to buffer the force transmitted by the electrode pressing cylinder (35) when the electrode pressing cylinder (35) drives the electrode lifting seat (36) to move up and down. The electrode pressing plate (37) is horizontally connected to the upper end of the electrode lifting seat (36) and moves up and down with the electrode lifting seat (36). The electrode pressing plate (37) descends and presses the stacked electrode assembly on the electrode support plate (310) to stabilize the coating.

6. The fully automatic electrode assembly coating hot press according to claim 1, characterized in that: The coating mechanism (4) includes a coating support (41), a coating pulling component, a coating driving component, and a coating component; wherein, the coating support (41) is set on the machine base (1), and a vertically upward extending support plate is formed on the coating support (41); the coating pulling component is set on the upper side of the coating support (41), and the coating pulling component pulls the wound tape downward; the coating driving component is set on the lower side of the coating support (41); the coating component is set on the coating driving component, and the coating driving component drives the coating component to move linearly in the horizontal plane and move up and down in the vertical direction. The coating component picks up the adhesive paper from below the coating pulling component and wraps the adhesive paper onto the side of the electrode assembly on the coating platform (3).

7. The fully automatic electrode assembly coating hot press according to claim 6, characterized in that: The adhesive-pulling assembly includes a film roll (418), a support roller (419), an adhesive-pulling module (414), an adhesive-pulling slide (415), an adhesive-clamping cylinder (416), and a clamping block (417); wherein, the film roll (418) is rotatably mounted on the side wall of the adhesive-coated support (41), and adhesive tape is wound on the film roll (418); the support roller (419) includes at least two rollers, the support roller (419) is mounted on the side wall of the adhesive-coated support (41), and the adhesive tape is pulled out from the film roll (418), passes through the support roller (419), and is tensioned by the support roller (419); the adhesive-pulling module (414), the support roller (419 ... The adhesive module (414) is vertically mounted on the other side wall of the adhesive support (41). The adhesive pulling slide (415) is slidably connected to the adhesive pulling module (414) and connected to the output end of the adhesive pulling module (414). The adhesive clamping cylinder (416) is mounted on the adhesive pulling slide (415). There are two clamping blocks (417). The two clamping blocks (417) are connected to the output end of the adhesive clamping cylinder (416) and are opened and closed by the adhesive clamping cylinder (416) to clamp the tape. The adhesive pulling module (414) drives the clamping blocks (417) to move downward, thereby pulling the tape downward.

8. The fully automatic electrode assembly coating hot press according to claim 7, characterized in that: The overmolding drive assembly includes a first linear module (42), a second linear module (43), a first slide block (44), a push cylinder (45), and a second slide block (46). The first linear module (42) is horizontally disposed on the lower side of the overmolding support (41). The second linear module (43) is slidably disposed on the first linear module (42) in the vertical direction and is driven to move up and down by the first linear module (42). The first slide block (44) is slidably disposed on the second linear module (43) and is driven to move up and down by the second linear module (43). The push cylinder (45) is horizontally disposed on the side of the first slide block (44) in a direction perpendicular to the first linear module (42) and moves up and down with the first slide block (44). The second slide block (46) is disposed on the side of the push cylinder (45) and connected to the output end of the push cylinder (45) and is driven to move linearly by the push cylinder (45).

9. A fully automatic electrode assembly coating hot press according to claim 8, characterized in that: The coating assembly includes a coating support plate (47), a coating cylinder (48), a coating slide plate (49), a coating suction seat (410), a coating partition plate (411), a coating roller (412), and an upward push cylinder (413); wherein, the coating support plate (47) is horizontally arranged on the second slide (46), and a slide rail is provided at the bottom of the coating support plate (47); the coating cylinder (48) is arranged on the coating support plate (47); the coating slide plate (49) is arranged at the lower part of the coating support plate (47). It is slidably connected to the slide rail at the bottom of the rubber-coated support plate (47) and connected to the output end of the rubber-coated cylinder (48), and is driven by the rubber-coated cylinder (48) to slide along the slide rail; one end of the rubber-coated suction seat (410) is connected to the rubber-coated slide plate (49), and the other end extends horizontally outward, forming an installation gap between the rubber-coated suction seat (410) and the rubber-coated slide plate (49), and a vacuum suction hole is provided on the outer end face of the rubber-coated suction seat (410) to adsorb and fix the adhesive paper (a) to be coated; the rubber-coated partition plate (411) The rubber-coated partition (411) is rotatably connected to the rubber-coated slide plate (49) at one end and extends outward at the other end; the rubber-coated roller (412) is rotatably disposed at the other end of the rubber-coated partition (411); the upward-pushing cylinder (413) is vertically disposed at the lower part of the rubber-coated suction seat (410) and its output end extends upward through the rubber-coated suction seat (410) to push the rubber-coated partition (411); after the rubber-coated suction seat (410) adsorbs the adhesive paper (a), the rubber-coated cylinder (48)... The drive plate (49) moves the coating suction seat (410) from the outside to approach the electrode assembly, so that the electrode assembly extends into the space between the coating plate (49) and the coating partition (411). The coating plate (49) continues to move, and the adhesive paper (a) is rolled onto the upper and lower surfaces of the electrode assembly by the coating rollers (412) at the ends of the coating plate (49) and the coating partition (411), respectively. The push cylinder (413) provides an upward thrust to the coating partition (411) so that the coating roller (412) rolls the electrode assembly onto the electrode assembly.

10. A fully automatic electrode assembly coating hot press according to claim 1, characterized in that: The unloading mechanism (5) includes an unloading linear module (51) and an unloading module (52). The unloading linear module (51) is arranged on the side of the machine base (1) in a straight line direction. The unloading module (52) is slidably arranged on the unloading linear module (51) and moves in a straight line driven by the unloading linear module (51). The unloading module (52) includes an unloading cylinder and upper and lower grippers horizontally connected thereto. The unloading cylinder drives the upper and lower grippers to clamp and remove the electrode assembly from the coating platform (3) and move it to the hot pressing mechanism (6).

11. A fully automatic electrode assembly coating hot press according to claim 10, characterized in that: The hot pressing mechanism (6) includes a hot pressing base (61), a hot pressing cylinder (62), and a hot pressing plate. The hot pressing base (61) is located on the side of the unloading module (52). The hot pressing base (61) has an inwardly recessed hot pressing space on the side of the unloading module (52). The unloading module (52) places the electrode assembly to be hot pressed into the hot pressing space. The hot pressing cylinder (62) is vertically mounted on the hot pressing base (61) and its output end extends downward through the hot pressing base (61) into the hot pressing space. The hot pressing plate is horizontally mounted in the hot pressing space and is connected to the output end of the hot pressing cylinder (62). The hot pressing cylinder (62) drives the hot pressing plate to descend and hot press the electrode assembly.

12. A hot-pressing process for coating electrode assembly using a fully automatic hot-pressing machine as described in claim 1, characterized in that, The process includes the following steps: S1. Loading: After the electrode assembly formed by stacking is taken out from the previous station by the transfer mechanism, it is placed on the two rotating platforms of the coating platform. S2, Electrode assembly: The rotating support in step S1 presses the electrode assembly placed on it from both ends and moves it between two spaced-apart coating mechanisms; S3, Glue pulling: The glue pulling component of the coating mechanism pulls the wound tape downwards in the vertical direction; S4. Take the adhesive tape: After the tape is pulled out in step S3, the tape wrapping mechanism drives the tape wrapping component to approach the tape from the side and pick up the adhesive tape adhering to the tape. S5. Coating: After the coating paper is picked up in step S4, the coating drive mechanism set on both sides of the coating platform drives it to move towards the coating platform. After the vertically adsorbed adhesive paper is attached to the outer side of the electrode group after being pressed in step S2, the coating cylinder of the coating mechanism drives the coating slide to continue to move horizontally, so that the electrode group is embedded in the space between the coating slide and the coating support plate. The coating slide continues to move, and the adhesive paper is pressed onto the upper and lower surfaces of the electrode group by the coating rollers at the ends of the coating slide and the coating support plate, respectively. The upward push cylinder provides an upward thrust to the coating support plate so that the coating roller rolls the electrode group, completing the coating paper coating. S6. Coating side switching: After the coating of one set of symmetrical sides of the electrode group is completed in step S5, the rotating platform drives the electrode group to rotate 90°, so that the other set of uncoated symmetrical sides of the electrode group are aligned with the two coating mechanisms. The coating mechanism repeats steps S3 to S5, so that the other set of symmetrical sides of the electrode group is coated. S7. Hot pressing: After the electrode assembly is coated in step S6, it is taken out of the coating platform by the feeding mechanism and transferred to the hot pressing mechanism. The electrode assembly is then hot pressed by the hot pressing mechanism. S8. Unloading: After the electrode assembly is hot-pressed in step S7, it is taken out by the unloading mechanism and moved for unloading.

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