An electrode stacking and coating device

Abstract

This invention discloses a coating device for laminated electrodes, comprising a coating mechanism and a coating platform. The coating platform is horizontally positioned on a machine base, and the laminated electrode assembly to be coated is placed on the coating platform. The coating mechanism comprises two sets, respectively positioned on both sides of the coating platform. Each coating mechanism includes a coating drive assembly, a translation adjustment assembly, a lifting adjustment assembly, a coating assembly, and a glue dispensing assembly. The coating drive assembly is horizontally positioned along a straight line. The translation adjustment assembly is positioned on the coating drive assembly along a direction perpendicular to the coating drive assembly. The coating assembly is positioned on the translation adjustment assembly. The glue dispensing assembly is positioned on the side of the translation adjustment assembly. This invention utilizes a single platform with two sets of coating mechanisms to simultaneously achieve symmetrical coating of the electrode assembly. Platform rotation enables automatic switching of the coating side, while also achieving continuous pressure on the adhesive paper end face and automatic roller coating of the adhesive paper onto the upper and lower surfaces of the electrode assembly.

Description

Technical Field

[0001] This invention relates to the field of automated equipment, and in particular to a device for coating electrodes after stacking. Background Technology

[0002] With the country's vigorous promotion of new energy development, the demand for lithium-ion power batteries from all walks of life 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 block the flow. 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. After hot pressing, multiple strips of adhesive tape are wrapped around the four sides of the electrode assembly to secure it for subsequent processing. In the electrode assembly coating section, it is necessary to simultaneously coat and fix the four side walls of the electrode assembly formed after stacking. Each side wall of the electrode assembly needs to be coated with multiple strips of adhesive tape at intervals. During the coating process, in order to prevent the electrode or diaphragm inside the electrode assembly from shifting, the electrode assembly needs to be clamped and fixed by the electrode assembly placement platform. Therefore, the motion interference problem between the adhesive tape and the electrode assembly placement platform needs to be solved during the adhesive tape coating process. At the same time, in order to ensure the coating effect, the adhesive tape coating needs to cover the end walls of the electrode assembly and extend to the upper and lower surfaces of the electrode assembly, and maintain a continuous and stable coating pressure during the coating process, so that the coating action is completed while the electrode and diaphragm inside the electrode assembly are tightly stacked. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a device for coating electrode stacking after the electrode assembly is assembled. This device uses a single platform to configure two sets of coating mechanisms, which simultaneously achieve symmetrical coating of the electrode assembly by means of the dual coating mechanisms, and automatically switches the coating sides by means of platform rotation. It also realizes continuous pressure on the end face of the adhesive paper and automatic roller pressing of the adhesive paper to cover the upper and lower surfaces of the electrode assembly.

[0004] The technical solution adopted by this invention is as follows: A coating device for stacked electrodes includes a coating mechanism and a coating platform; wherein, the coating platform is horizontally arranged on a machine base, and the stacked electrode assembly to be coated is placed on the coating platform; the coating mechanism includes two sets, which are respectively arranged on both sides of the coating platform; the coating mechanism includes a coating drive component, a translation adjustment component, a lifting adjustment component, a coating component, and a glue dispensing component; wherein, the coating drive component is horizontally arranged along a straight line; the translation adjustment component is arranged on the coating drive component along a direction perpendicular to the coating drive component and is connected to the output end of the coating drive component; the coating component is arranged on the translation adjustment component and is connected to the output end of the translation adjustment component; the glue dispensing component is arranged on the side of the translation adjustment component, and after the glue dispensing component sends out the glue paper to be coated and it is taken out by the coating component, the coating component pushes the glue paper in a straight line to adhere to the end face of the electrode assembly and then wraps the glue paper to the upper and lower sides of the electrode assembly.

[0005] Preferably, the rubber coating drive mechanism includes a support, a motor, and a slide; wherein the support is horizontally arranged, and slide rails are provided on both sides of the support; a lead screw is horizontally inserted in the middle of the support; the motor is located on one side of the support and is connected to the lead screw via a belt; the slide is connected to the lead screw via a lead screw seat; the motor drives the lead screw to rotate, and the slide slides along the direction of the lead screw with the lead screw seat.

[0006] Preferably, the translation adjustment assembly includes a linear module and a translation bracket; wherein the linear module is horizontally disposed on the upper end of the slide and disposed in a direction perpendicular to the support; the translation bracket is slidably connected to the linear module and connected to the output end of the linear module.

[0007] Preferably, the lifting adjustment assembly includes a lifting adjustment motor and a lifting adjustment slide; wherein, the lifting adjustment motor is vertically mounted on the side wall of the translation bracket; the lifting adjustment slide is slidably connected to the lifting adjustment motor and connected to the output end of the lifting adjustment motor via a lead screw sleeve and a lead screw.

[0008] Preferably, the glue dispensing assembly includes a glue-pulling cylinder, a glue-clamping claw, a glue wheel, a glue dispensing roller, and a glue-guiding support. The glue-pulling cylinder is vertically mounted on the lifting adjustment seat with its output end facing downwards. The glue-clamping claw is mounted on the output end of the glue-pulling cylinder. The glue wheel is mounted on the side of the linear module, and adhesive paper is wound on the glue wheel. At least two glue dispensing rollers are rotatably connected to the side wall of the linear module, and the adhesive paper is tensioned by the glue dispensing roller after being discharged from the glue wheel. The glue-guiding support is connected to the side wall of the linear module, forming a horizontal support. A glue-guiding gap is provided in the middle of this horizontal support, through which the adhesive paper passes upwards to below the glue-clamping claw. The glue-clamping claw clamps the end of the adhesive paper and pulls it upwards.

[0009] Preferably, the coating assembly includes a coating support plate, a coating base, a coating cylinder, a coating pusher, a backing plate, and coating components. The coating support plate is vertically connected to the translation bracket; the coating base is horizontally connected to the coating support plate; the coating cylinder is mounted on the coating base; the coating pusher is slidably connected to the coating base and connected to the output end of the coating cylinder; the backing plate is horizontally connected to the coating pusher; the coating components include two sets, symmetrically arranged on the upper and lower sides of the coating pusher, and fixedly connected to the side wall of the translation bracket. The outer end of the coating component adsorbs vertically arranged adhesive paper. The translation bracket drives the backing plate and coating components to move synchronously towards the electrode assembly. The coating components gradually slide from the end face of the electrode assembly to the upper and lower surfaces of the electrode assembly, covering the adhesive paper. The outer end face of the backing plate presses the adhesive paper against the end face of the electrode assembly. As the translation bracket moves forward, the coating cylinder drives the backing plate to retract synchronously.

[0010] Preferably, the coating component includes a coating suction plate, a coating suction base, a coating suction nozzle, a coating roller plate, a coating roller, a glue-abutting cylinder, and a glue-abutting ball. The coating suction plate is arranged perpendicular to the coating support plate. The coating suction base is arranged on the outer side of the coating suction plate. The coating suction nozzle is arranged on the end wall of the coating suction base, and the coating suction base forms a vacuum negative pressure at the end wall of the coating suction base to adsorb the vertically arranged adhesive paper.

[0011] Preferably, the rubber-coating roller plate is disposed between the abutment plate and the rubber-coating suction plate, the inner end of the rubber-coating roller plate is rotatably connected to the rubber-coating support plate, and the outer end of the rubber-coating roller plate is rotatably connected to the rubber-coating roller.

[0012] Preferably, the adhesive-resistant cylinder is vertically positioned outside the adhesive-coating suction plate, and its output end extends upward through the adhesive-coating suction plate to the adhesive-coating roller plate; the adhesive-resistant ball is connected to the output end of the adhesive-resistant cylinder; the adhesive-coating roller abuts against the adhesive paper and gradually slides from the end face of the electrode assembly to the upper or lower surface of the electrode assembly; the adhesive-resistant cylinder drives the adhesive-resistant ball to move towards the adhesive-coating roller plate, causing the outer end of the adhesive-coating roller plate to rotate towards the electrode assembly, thereby pressing and covering the adhesive paper onto the upper or lower surface of the electrode assembly.

[0013] Preferably, the coating platform includes a platform support, a platform motor, a rotating support plate, an electrode pressing cylinder, and an electrode pressing block; wherein, the platform support is vertically arranged; the platform motor is located on the upper part of the platform support, with its output end facing upward; the rotating support plate is horizontally connected to the output end of the platform motor and is driven to rotate by the platform motor; the rotating support plate is provided with an electrode holder, which includes at least two parallel spaced bearing seats, on which the electrode assembly to be coated is placed; the electrode pressing cylinder includes two cylinders, which are respectively located at both ends of the electrode holder, with their output ends arranged vertically; the electrode pressing block includes two blocks, which are horizontally connected to the output end of the electrode pressing cylinder and are driven to rise and fall by the electrode pressing cylinder to press or release the electrode assembly.

[0014] Beneficial effects of the present invention

[0015] This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing a device for coating electrode stacking after the electrode assembly is assembled. This device uses a single platform with two sets of coating mechanisms to simultaneously achieve symmetrical coating of the electrode assembly, and the platform rotation enables automatic switching of the coating side. It also achieves continuous pressure on the end face of the adhesive paper and automatic roller pressing of the adhesive paper to cover the upper and lower surfaces of the electrode assembly.

[0016] To address the coating and fixing requirements of stacked electrode assemblies, this invention completes a multi-film-interval coating process on all four sides of the electrode assembly. The entire assembly includes a coating mechanism and a coating platform. Two coating mechanisms are symmetrically positioned on either side of the coating platform. The coating platform employs a rotatable design. After each coating operation, the two coating mechanisms complete the coating of the symmetrical sides of the electrode assembly placed on the platform. Then, the platform rotates 90°, and the two coating mechanisms complete the coating of the remaining two sides of the electrode assembly. This process completes the coating of all four sides of the electrode assembly in two separate operations. Simultaneously, for the long side of the electrode assembly, since the required coating area is larger than the single coating area of ​​the coating mechanism, the coating mechanism slides linearly along the long side of the electrode assembly to complete the coating operation. After completing one coating operation, the coating mechanism moves linearly to the next position until all coating positions along the long side of the electrode assembly are completed.

[0017] The coating platform of this invention uses a platform support as a supporting mechanism, on which a platform motor with its output end facing upwards is mounted. A rotating support plate is horizontally connected to the output end of the platform motor as a rotation drive component. An electrode holder is located in the middle of the rotating support plate. The electrode holder includes multiple vertically arranged bearing seats that are parallel to each other. The upper part of the multiple bearing seats forms an electrode assembly placement platform. The gap space between adjacent bearing seats is the coating position, so that the coating assembly can be inserted and pressed tightly to cover the electrode assembly from the side end face and the top and bottom sides. In addition, electrode pressing cylinders are respectively provided at both ends of the electrode holder. The electrode pressing cylinders drive the horizontally arranged electrode pressing blocks to move up and down, so that the electrode pressing blocks press the electrode assembly placed on the electrode holder from above, so as to prevent the position of the stacked electrode or diaphragm from shifting during coating.

[0018] The coating mechanism of the present invention comprises a coating drive assembly, a translation adjustment assembly, a lifting adjustment assembly, a coating assembly, and a glue dispensing assembly. The coating drive assembly uses a support perpendicular to the coating platform as a carrier, and drives a slide block on it to slide linearly via a motor, a lead screw, and a lead screw seat. The linear module of the translation adjustment assembly is arranged on the slide block perpendicular to the support and drives a translation bracket connected to its output end to slide linearly. The glue dispensing assembly and the lifting adjustment assembly comprise two sets, respectively arranged on both sides of the linear module. The glue paper discharged by the glue dispensing assembly is tensioned by the glue dispensing roller and extends vertically upward through the glue guiding gap of the glue guiding support. The lifting adjustment motor of the lifting adjustment assembly drives the lifting adjustment seat to move the glue pulling cylinder up and down towards the glue guiding support. After controlling the glue clamping claw to clamp the glue paper on the glue guiding support, the strip of glue paper is torn horizontally along the plane where the glue guiding gap is located.

[0019] The coating assembly of this invention comprises two sets, simultaneously disposed on both sides of a linear module. The two sets of coating assemblies simultaneously adsorb two pieces of adhesive paper from the adhesive dispensing assembly vertically and then coat them onto the electrode side. The coating assembly uses a vertically arranged coating support plate as its supporting structure. The coating support plate is mounted on a translational bracket and moves linearly with the translational bracket in both longitudinal and transverse directions. A coating support seat is horizontally arranged on the coating support plate, and a coating cylinder is mounted on the coating support seat. A vertically arranged coating pusher seat is also fitted onto the coating support seat. The coating pusher seat is slidably connected to the coating support seat and connected to the output end of the coating cylinder. A stop plate is horizontally connected to the bottom of the coating pusher seat. The stop plate extends from one side to the other through the coating support plate. The outer end face of the stop plate is planar. During the coating process, the stop plate continuously holds the adhesive paper against the electrode assembly end face. Two sets of coating components are symmetrically arranged on the upper and lower sides of the backing plate. The coating components use a coating suction plate horizontally set on the side wall of the coating support plate as a carrier. A gap is left between the coating suction plate and the backing plate. A coating suction seat is provided on the outside of the coating suction plate, and a coating suction nozzle is provided on the coating suction seat. By forming a vacuum negative pressure on the outer surface of the coating suction seat through the coating suction nozzle, the adhesive paper to be coated is sucked and fixed from the clamping claw of the adhesive dispensing component. A coating roller plate is provided between the coating suction plate and the backing plate. One end of the coating roller plate is rotatably connected to the side wall of the coating support plate, and the other end of the coating roller plate is rotatably connected to the coating roller. When the backing plate presses the vertically adsorbed adhesive paper against the end wall of the electrode assembly, the coating roller plate is positioned above and below the backing plate. The coating rollers on both sides press against the adhesive paper from the top and bottom. As the coating support plate moves synchronously towards the electrode assembly, the coating rollers gradually slide the adhesive paper to the top and bottom sides of the electrode assembly. The adhesive-pressing cylinder, located outside the coating suction plate, drives the adhesive-pressing ball to output continuous power, pressing the coating rollers towards the side wall of the electrode assembly. This causes the coating rollers to press the adhesive paper onto the surface of the electrode assembly while sliding along the top and bottom surfaces of the electrode assembly. Simultaneously, the coating cylinder drives the push plate to retract away from the electrode assembly, maintaining a synchronous movement opposite to that of the coating support plate. This keeps the adhesive paper pressed against the side wall of the electrode assembly until the coating rollers complete the coating process. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0021] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 This is one of the three-dimensional structural schematic diagrams of the coating mechanism of the present invention.

[0023] Figure 4 This is the second three-dimensional structural schematic diagram of the coating mechanism of the present invention.

[0024] Figure 5 This is the third three-dimensional structural schematic diagram of the coating mechanism of the present invention.

[0025] Figure 6 for Figure 5 Enlarged structural diagram at point I.

[0026] Figure 7 This is one of the three-dimensional structural schematic diagrams of the overmolded component of the present invention.

[0027] Figure 8 This is the second three-dimensional structural schematic diagram of the overmolded component of the present invention.

[0028] Figure 9 This is the third three-dimensional structural schematic diagram of the overmolded component of the present invention.

[0029] Figure 10 This is one of the three-dimensional structural schematic diagrams of the coating platform of the present invention.

[0030] Figure 11 This is one of the three-dimensional structural schematic diagrams of the coating platform of the present invention. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings:

[0032] like Figures 1 to 11 As shown, the technical solution adopted by the present invention is as follows: A coating device for stacked electrodes includes a coating mechanism 16 and a coating platform 17; wherein, the coating platform 17 is horizontally arranged on the machine base, and the stacked electrode assembly to be coated is placed on the coating platform 17; the coating mechanism 16 includes two sets, and the two sets of coating mechanisms 16 are respectively arranged on both sides of the coating platform 17; the coating mechanism includes a coating drive component, a translation adjustment component, a lifting adjustment component, a coating component 167, and a glue dispensing component; wherein, the coating drive component is horizontally arranged along a straight line; the translation adjustment component is arranged on the coating drive component along a direction perpendicular to the coating drive component and is connected to the output end of the coating drive component; the coating component 167 is arranged on the translation adjustment component and is connected to the output end of the translation adjustment component; the glue dispensing component is arranged on the side of the translation adjustment component, and after the glue dispensing component sends out the glue paper to be coated and it is taken out by the coating component, the coating component 167 pushes the glue paper in a straight line to adhere to the end face of the electrode assembly and then wraps the glue paper to the upper and lower sides of the electrode assembly.

[0033] The rubber coating drive mechanism includes a support 161, a motor 162, and a slide 163. The support 161 is horizontally arranged, and slide rails are provided on both sides of the support 161. A lead screw is horizontally inserted in the middle of the support 161. The motor 162 is located on one side of the support 161 and is connected to the lead screw via a belt. The slide 163 is connected to the lead screw via a lead screw seat. The motor 162 drives the lead screw to rotate, and the slide 163 slides along the direction of the lead screw with the lead screw seat.

[0034] The translation adjustment assembly includes a linear module 164 and a translation bracket 165; wherein, the linear module 164 is horizontally disposed on the upper end of the slide block 163 and disposed in a direction perpendicular to the support 161; the translation bracket 165 is slidably connected to the linear module 164 and connected to the output end of the linear module 164.

[0035] The lifting adjustment assembly includes a lifting adjustment motor 168 and a lifting adjustment slide 169; wherein, the lifting adjustment motor 168 is vertically mounted on the side wall of the translation bracket 165; the lifting adjustment slide 169 is slidably connected to the lifting adjustment motor 168 and is connected to the output end of the lifting adjustment motor 168 through a lead screw sleeve and a lead screw.

[0036] The glue dispensing assembly includes a glue-pulling cylinder 1610, a glue-clamping claw 1611, a glue roller 1612, a glue dispensing roller 1613, and a glue-guiding support 1614. The glue-pulling cylinder 1610 is vertically mounted on the lifting adjustment seat 169 with its output end facing downwards. The glue-clamping claw 1611 is mounted on the output end of the glue-pulling cylinder 1610. The glue roller 1612 is mounted on the side of the linear module 164, and adhesive paper 1615 is wound around the glue roller 1612. The glue dispensing roller 1613 includes... Two fewer rollers are used. The glue dispensing roller 1613 is rotatably connected to the side wall of the linear module 164. The adhesive tape 1615 is led out from the glue wheel 1612 and tensioned by the glue dispensing roller 1613. The glue guiding support 1614 is connected to the side wall of the linear module 164 and forms a horizontal support. The horizontal support has a glue guiding gap in the middle. The adhesive tape 1615 passes upward through the glue guiding gap to the bottom of the glue clamping claw 1611. The glue clamping claw 1611 clamps the end of the adhesive tape 1615 and pulls the adhesive tape 1615 upward.

[0037] The rubber-coating assembly 167 includes a rubber-coating support plate 1671, a rubber-coating support 1672, a rubber-coating cylinder 1673, a rubber-coating pusher 1674, a stop plate 1675, and rubber-coating components. The rubber-coating support plate 1671 is vertically connected to the translation bracket 165; the rubber-coating support 1672 is horizontally connected to the rubber-coating support plate 1671; the rubber-coating cylinder 1673 is mounted on the rubber-coating support 1672; the rubber-coating pusher 1674 is slidably connected to the rubber-coating support 1672 and connected to the output end of the rubber-coating cylinder 1673; and the stop plate 1675 is horizontally connected to the rubber-coating pusher 1674. The coating component comprises two sets, which are symmetrically arranged on the upper and lower sides of the coating pusher 1674. The coating component is fixedly connected to the side wall of the translation bracket 165. The outer end of the coating component adsorbs the vertically arranged adhesive paper 1615. The translation bracket 165 drives the abutment plate 1675 and the coating component to move synchronously toward the electrode assembly. The coating component gradually slides from the end face of the electrode assembly to the upper and lower surfaces of the electrode assembly, covering the adhesive paper. The outer end face of the abutment plate 1675 presses the adhesive paper against the end face of the electrode assembly. As the translation bracket 165 moves forward, the coating cylinder 1673 drives the abutment plate 1675 to retract synchronously.

[0038] The coating component includes a coating suction plate 1676, a coating suction base 1677, a coating suction nozzle 1678, a coating roller plate 1679, a coating roller 16710, a coating abutment cylinder 16711, and a coating abutment ball 16712. The coating suction plate 1676 is arranged perpendicular to the coating support plate 1671. The coating suction base 1677 is arranged on the outer side of the coating suction plate 1676. The coating suction nozzle 1678 is arranged on the end wall of the coating suction base 1677. The coating suction base 1678 forms a vacuum negative pressure at the end wall of the coating suction base 1677 to adsorb the vertically arranged adhesive paper 1615.

[0039] The rubber-coating roller plate 1679 is disposed between the abutment plate 1675 and the rubber-coating suction plate 1676. The inner end of the rubber-coating roller plate 1679 is rotatably connected to the rubber-coating support plate 1671, and the outer end of the rubber-coating roller plate 1679 is rotatably connected to the rubber-coating roller 16710.

[0040] The adhesive-resistant cylinder 16711 is vertically arranged on the outside of the adhesive-coating suction plate 1676, and its output end extends upward through the adhesive-coating suction plate 1676 to the adhesive-coating roller plate 1679; the adhesive-resistant ball 16712 is connected to the output end of the adhesive-resistant cylinder 16711; the adhesive-coating roller 1710 abuts against the adhesive paper and gradually slides from the end face of the electrode group to the upper or lower surface of the electrode group; the adhesive-resistant cylinder 16711 drives the adhesive-resistant ball 16712 to move towards the adhesive-coating roller plate 1679, so that the outer end of the adhesive-coating roller plate 1679 rotates towards the electrode group to roll and cover the adhesive paper onto the upper or lower surface of the electrode group.

[0041] The coating platform includes a platform support 171, a platform motor 172, a rotating support plate 173, an electrode pressing cylinder 174, and an electrode pressing block 175. The platform support 171 is vertically positioned. The platform motor 172 is located on the upper part of the platform support 171, with its output end facing upwards. The rotating support plate 173 is horizontally connected to the output end of the platform motor 172 and is driven to rotate by the platform motor 172. An electrode holder is provided on the rotating support plate 173, and the electrode holder includes at least two parallel, spaced-apart support seats. An electrode assembly to be coated is placed on the electrode holder. Two electrode pressing cylinders 174 are included, each located at one end of the electrode holder, with its output end facing vertically. Two electrode pressing blocks 175 are included, horizontally connected to the output end of the electrode pressing cylinder 174, and are driven to rise and fall by the electrode pressing cylinder 174 to press or release the electrode assembly.

[0042] Furthermore, the present invention designs an electrode stacking device that uses a single platform to configure two sets of coating mechanisms, simultaneously achieves symmetrical coating of the electrode assembly through the dual coating mechanisms, automatically switches the coating side through platform rotation, and simultaneously realizes continuous pressure on the end face of the adhesive paper and automatic roller pressing of the adhesive paper to cover the upper and lower surfaces of the electrode assembly. To address the coating and fixing requirements of stacked electrode assemblies, this invention completes a multi-film-interval coating process on all four sides of the electrode assembly. The entire assembly includes a coating mechanism and a coating platform. Two coating mechanisms are symmetrically positioned on either side of the coating platform. The coating platform employs a rotatable design. After each coating operation, the two coating mechanisms complete the coating of the symmetrical sides of the electrode assembly placed on the platform. Then, the platform rotates 90°, and the two coating mechanisms complete the coating of the remaining two sides of the electrode assembly. This process completes the coating of all four sides of the electrode assembly in two separate operations. Simultaneously, for the long side of the electrode assembly, since the required coating area is larger than the single coating area of ​​the coating mechanism, the coating mechanism slides linearly along the long side of the electrode assembly to complete the coating operation. After completing one coating operation, the coating mechanism moves linearly to the next position until all coating positions along the long side of the electrode assembly are completed. The coating platform of this invention uses a platform support as a supporting mechanism, on which a platform motor with its output end facing upwards is mounted. A rotating support plate is horizontally connected to the output end of the platform motor as a rotation drive component. An electrode holder is located in the middle of the rotating support plate. The electrode holder includes multiple vertically arranged bearing seats that are parallel to each other. The upper part of the multiple bearing seats forms an electrode assembly placement platform. The gap space between adjacent bearing seats is the coating position, so that the coating assembly can be inserted and pressed tightly to cover the electrode assembly from the side end face and the top and bottom sides. In addition, electrode pressing cylinders are respectively provided at both ends of the electrode holder. The electrode pressing cylinders drive the horizontally arranged electrode pressing blocks to move up and down, so that the electrode pressing blocks press the electrode assembly placed on the electrode holder from above, so as to prevent the position of the stacked electrode or diaphragm from shifting during coating. The coating mechanism of the present invention comprises a coating drive assembly, a translation adjustment assembly, a lifting adjustment assembly, a coating assembly, and a glue dispensing assembly. The coating drive assembly uses a support perpendicular to the coating platform as a carrier, and drives a slide block on it to slide linearly via a motor, a lead screw, and a lead screw seat. The linear module of the translation adjustment assembly is arranged on the slide block perpendicular to the support and drives a translation bracket connected to its output end to slide linearly. The glue dispensing assembly and the lifting adjustment assembly comprise two sets, respectively arranged on both sides of the linear module. The glue paper discharged by the glue dispensing assembly is tensioned by the glue dispensing roller and extends vertically upward through the glue guiding gap of the glue guiding support. The lifting adjustment motor of the lifting adjustment assembly drives the lifting adjustment seat to move the glue pulling cylinder up and down towards the glue guiding support. After controlling the glue clamping claw to clamp the glue paper on the glue guiding support, the strip of glue paper is torn horizontally along the plane where the glue guiding gap is located. The coating assembly of the present invention includes two sets, which are simultaneously disposed on both sides of the linear module. The two sets of coating assemblies simultaneously adsorb two pieces of adhesive paper from the adhesive dispensing assembly vertically and then wrap them to the side of the electrode sheet.The coating assembly uses a vertically arranged coating support plate as its load-bearing structure. The coating support plate is mounted on a translation bracket and moves linearly with the translation bracket in both longitudinal and transverse directions. A coating support is horizontally arranged on the coating support plate, and a coating cylinder is mounted on the coating support plate. A vertically arranged coating pusher is also fitted on the coating support plate. The coating pusher is slidably connected to the coating support plate and is connected to the output end of the coating cylinder. A stop plate is horizontally connected to the bottom of the coating pusher plate. The stop plate extends from one side to the other through the coating support plate. The outer end face of the stop plate is a flat structure. During the coating process, the stop plate continuously presses the adhesive paper against the end face of the electrode assembly. Two sets of coating components are symmetrically arranged on the upper and lower sides of the backing plate. The coating components use a coating suction plate horizontally set on the side wall of the coating support plate as a carrier. A gap is left between the coating suction plate and the backing plate. A coating suction seat is provided on the outside of the coating suction plate, and a coating suction nozzle is provided on the coating suction seat. By forming a vacuum negative pressure on the outer surface of the coating suction seat through the coating suction nozzle, the adhesive paper to be coated is sucked and fixed from the clamping claw of the adhesive dispensing component. A coating roller plate is provided between the coating suction plate and the backing plate. One end of the coating roller plate is rotatably connected to the side wall of the coating support plate, and the other end of the coating roller plate is rotatably connected to the coating roller. When the backing plate presses the vertically adsorbed adhesive paper against the end wall of the electrode assembly, the coating roller plate is positioned above and below the backing plate. The coating rollers on both sides press against the adhesive paper from the top and bottom. As the coating support plate moves synchronously towards the electrode assembly, the coating rollers gradually slide the adhesive paper to the top and bottom sides of the electrode assembly. The adhesive-pressing cylinder, located outside the coating suction plate, drives the adhesive-pressing ball to output continuous power, pressing the coating rollers towards the side wall of the electrode assembly. This causes the coating rollers to press the adhesive paper onto the surface of the electrode assembly while sliding along the top and bottom surfaces of the electrode assembly. Simultaneously, the coating cylinder drives the push plate to retract away from the electrode assembly, maintaining a synchronous movement opposite to that of the coating support plate. This keeps the adhesive paper pressed against the side wall of the electrode assembly until the coating rollers complete the coating process.

[0043] 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 device for coating electrodes after stacking, characterized in that: The system includes a coating mechanism (16) and a coating platform (17). The coating platform (17) is horizontally mounted on the machine platform, and the stacked electrode assembly to be coated is placed on the coating platform (17). The coating mechanism (16) includes two sets, which are respectively mounted on both sides of the coating platform (17). The coating mechanism includes a coating drive assembly, a translation adjustment assembly, a lifting adjustment assembly, a coating assembly (167), and a glue dispensing assembly. The coating drive assembly is horizontally mounted along a straight line. The translation adjustment assembly is mounted on the coating drive assembly along a direction perpendicular to the coating drive assembly and is connected to the output end of the coating drive assembly. The coating assembly (167) is mounted on the translation adjustment assembly and is connected to the output end of the translation adjustment assembly. The glue dispensing assembly is mounted on the side of the translation adjustment assembly. After the glue dispensing assembly sends out the glue paper to be coated and it is taken out by the coating assembly, the coating assembly (167) pushes the glue paper in a straight line to adhere to the end face of the electrode assembly and then coats the glue paper onto the upper and lower sides of the electrode assembly. The coating platform includes a platform support (171), a platform motor (172), a rotating support plate (173), an electrode pressing cylinder (174), and an electrode pressing block (175); wherein, the platform support (171) is vertically arranged; the platform motor (172) is arranged on the upper part of the platform support (171), and the output end is arranged upward; the rotating support plate (173) is horizontally connected to the output end of the platform motor (172), and is driven to rotate by the platform motor (172). 3) An electrode holder is provided on the electrode holder, which includes at least two parallel spaced support seats. The electrode set to be coated is placed on the electrode holder. The above-mentioned pressing cylinder (174) includes two cylinders, which are respectively set at both ends of the electrode holder and the output end is set in the vertical direction. The above-mentioned pressing block (175) includes two blocks. The pressing block (175) is horizontally connected to the output end of the pressing cylinder (174) and is driven to rise and fall by the pressing cylinder (174) so ​​as to press or loosen the electrode set.

2. The electrode lamination and coating device according to claim 1, characterized in that: The rubber-coating drive mechanism includes a support (161), a motor (162), and a slide (163); wherein, the support (161) is horizontally arranged, and slide rails are provided on both sides of the support (161); a lead screw is horizontally inserted in the middle of the support (161); the motor (162) is arranged on one side of the support (161) and connected to the lead screw through a belt; the slide (163) is connected to the lead screw through a lead screw seat; the motor (162) drives the lead screw to rotate, and the slide (163) slides along the direction of the lead screw with the lead screw seat.

3. The electrode stacking and coating device according to claim 2, characterized in that: The translation adjustment assembly includes a linear module (164) and a translation bracket (165); wherein the linear module (164) is horizontally arranged on the upper end of the slide (163) and arranged in a direction perpendicular to the support (161); the translation bracket (165) is slidably connected to the linear module (164) and connected to the output end of the linear module (164).

4. The electrode lamination and coating device according to claim 3, characterized in that: The lifting adjustment assembly includes a lifting adjustment motor (168) and a lifting adjustment slide (169); wherein the lifting adjustment motor (168) is vertically mounted on the side wall of the translation bracket (165); the lifting adjustment slide (169) is slidably connected to the lifting adjustment motor (168) and connected to the output end of the lifting adjustment motor (168) through a lead screw sleeve and a lead screw.

5. The electrode lamination and coating device according to claim 4, characterized in that: The glue dispensing assembly includes a glue-pulling cylinder (1610), a glue-clamping claw (1611), a glue wheel (1612), a glue dispensing roller (1613), and a glue-guiding support (1614). The glue-pulling cylinder (1610) is vertically mounted on the lifting adjustment seat (169) with its output end facing downwards. The glue-clamping claw (1611) is mounted on the output end of the glue-pulling cylinder (1610). The glue wheel (1612) is mounted on the side of the linear module (164), and adhesive paper (1615) is wound around the glue wheel (1612). The glue dispensing roller (1613)... It includes at least two, with the glue dispensing roller (1613) rotatably connected to the side wall of the linear module (164). The adhesive tape (1615) is led out from the glue wheel (1612) and tensioned by the glue dispensing roller (1613). The glue guiding support (1614) is connected to the side wall of the linear module (164) and forms a horizontal support. The horizontal support has a glue guiding gap in the middle. The adhesive tape (1615) passes upward through the glue guiding gap to the bottom of the glue clamping claw (1611). The glue clamping claw (1611) clamps the end of the adhesive tape (1615) and pulls the adhesive tape (1615) upward.

6. The electrode lamination and coating device according to claim 5, characterized in that: The rubber coating assembly (167) includes a rubber coating support plate (1671), a rubber coating support (1672), a rubber coating cylinder (1673), a rubber coating pusher (1674), a stop plate (1675), and rubber coating components. The rubber coating support plate (1671) is vertically connected to the translation bracket (165); the rubber coating support (1672) is horizontally connected to the rubber coating support plate (1671); the rubber coating cylinder (1673) is mounted on the rubber coating support (1672); the rubber coating pusher (1674) is slidably connected to the rubber coating support (1672) and connected to the output end of the rubber coating cylinder (1673); and the stop plate (1675) is horizontally connected to the rubber coating pusher. (1674) Above; the above-mentioned coating component includes two sets, and the coating components are symmetrically arranged on the upper and lower sides of the coating push base (1674). The coating components are fixedly connected to the side wall of the translation bracket (165). The outer end of the coating component adsorbs the vertically arranged adhesive paper (1615). The translation bracket (165) drives the abutment plate (1675) and the coating component to move synchronously towards the electrode group. The coating component gradually slides from the end face of the electrode group to the upper and lower surfaces of the electrode group to cover the adhesive paper. The outer end face of the abutment plate (1675) presses the adhesive paper against the end face of the electrode group. As the translation bracket (165) moves forward, the coating cylinder (1673) drives the abutment plate (1675) to retract synchronously.

7. The electrode lamination and coating device according to claim 6, characterized in that: The coating component includes a coating suction plate (1676), a coating suction seat (1677), a coating suction nozzle (1678), a coating roller plate (1679), a coating roller (16710), a coating cylinder (16711), and a coating ball (16712). The coating suction plate (1676) is arranged perpendicular to the coating support plate (1671). The coating suction seat (1677) is arranged on the outside of the coating suction plate (1676). The coating suction nozzle (1678) is arranged on the end wall of the coating suction seat (1677). The coating suction seat (1678) forms a vacuum negative pressure at the end wall of the coating suction seat (1677) to adsorb the vertically arranged adhesive paper (1615).

8. The electrode lamination and coating device according to claim 7, characterized in that: The rubber-coating roller plate (1679) is disposed between the abutment plate (1675) and the rubber-coating suction plate (1676). The inner end of the rubber-coating roller plate (1679) is rotatably connected to the rubber-coating support plate (1671), and the outer end of the rubber-coating roller plate (1679) is rotatably connected to the rubber-coating roller (16710).

9. The electrode lamination and coating device according to claim 8, characterized in that: The adhesive-resistant cylinder (16711) is vertically arranged on the outside of the adhesive-coating suction plate (1676), and its output end extends upward through the adhesive-coating suction plate (1676) to the adhesive-coating roller plate (1679); the adhesive-resistant ball (16712) is connected to the output end of the adhesive-resistant cylinder (16711); the adhesive-coating roller (1710) abuts against the adhesive paper and gradually slides from the end face of the electrode group to the upper or lower surface of the electrode group; the adhesive-resistant cylinder (16711) drives the adhesive-resistant ball (16712) to move towards the adhesive-coating roller plate (1679), so that the outer end of the adhesive-coating roller plate (1679) rotates towards the electrode group to roll and cover the adhesive paper onto the upper or lower surface of the electrode group.

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