An apparatus and method for taping the side edges of a bare cell

Abstract

The application discloses a kind of bare battery cell side edge glue sticking equipment and method, including machine table, be equipped with glue sticking manipulator, glue supply feeder, battery cell rotating table, glue paper coarse positioning CCD and glue paper fine positioning CCD, glue supply feeder is located between glue paper coarse positioning CCD and glue paper fine positioning CCD, glue sticking manipulator takes a piece of glue paper from glue supply feeder each time and sticks to the side of battery cell or adjacent two sides thereof;After battery cell sticks and wraps up the glue paper of one side, battery cell rotating table controls battery cell to rotate 90 degrees or 180 degrees to change side and stick glue.The application can select the number of glue sticking mechanism according to the side of different length of battery cell sticking and wrapping, when the side of battery cell sticking and wrapping is shorter, second section glue sticking mechanism and third section glue sticking mechanism can be selected, second section glue sticking mechanism sticks and wraps one side of battery cell, third section glue sticking mechanism is controlled to rotate 90 degrees by rotating control mechanism, so that the other end of glue paper sticks and wraps the other side of battery cell;When the side of battery cell sticking and wrapping is longer, three glue sticking mechanisms can be used simultaneously.

Description

Technical Field

[0001] This invention relates to battery adhesive bonding equipment, and more particularly to an equipment and method for applying side adhesive to bare battery cells. Background Technology

[0002] Before electrolyte injection, battery cells are typically wrapped with adhesive on both sides to facilitate placement into a hard casing. However, older adhesive tapes were impermeable to electrolyte, preventing complete encapsulation and hindering casing installation. Newer adhesive tapes are permeable to electrolyte, allowing for full encapsulation. Current equipment, however, requires this process on a separate machine: after one side is coated, the battery is switched and transferred to another machine for further tape application. This results in low efficiency and poor adhesion. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a device for applying side adhesive to bare battery cells.

[0004] The objective of this invention is achieved through the following technical solution: a device for applying side adhesive to a bare battery cell, comprising a machine base, wherein the machine base is equipped with an adhesive application robot, an adhesive feeder, a battery cell rotation table, an adhesive coarse positioning CCD, and an adhesive fine positioning CCD. The adhesive feeder is located between the adhesive coarse positioning CCD and the adhesive fine positioning CCD. Each time, the adhesive application robot picks up a piece of adhesive from the adhesive feeder and applies it to one side or two adjacent sides of the battery cell. After each side of the battery cell is covered with adhesive, the battery cell rotation table controls the battery cell to rotate 90 degrees or 180 degrees to switch sides for adhesive application.

[0005] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, it also includes a battery cell hot heat treatment mechanism. After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the position of the battery cell hot heat treatment mechanism for hot heat treatment and shaping.

[0006] The battery cell heat-pressing mechanism includes an intermediate battery cell positioning platform and multiple heat-pressing mechanisms located around the intermediate battery cell positioning platform. Each heat-pressing mechanism includes a heat-pressing support base. The heat-pressing support base is equipped with a transverse control cylinder. The transverse control cylinder controls the movement of a transverse sliding plate. The transverse sliding plate is equipped with a heat-pressing plate. The end of the heat-pressing plate is configured as a straight line shape, a right angle shape, a wave shape, a V shape, a W shape, or an arc shape. Each heat-pressing mechanism heats one side or one corner of the battery cell.

[0007] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the battery cell rotary table includes a rotary table X-axis servo module and a rotary table Y-axis servo module. The rotary table X-axis servo module controls the movement of the rotary table Y-axis servo module, and the rotary table Y-axis servo module controls the movement of a rotary table support. The rotary table support is provided with a battery cell positioning mechanism and a rotation control motor for controlling the rotation of the battery cell rotary table. The battery cell positioning mechanism is located directly above the battery cell rotary table, and the battery cell rotary table is provided with multiple vacuum adsorption holes spaced apart.

[0008] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the battery cell positioning mechanism includes a positioning cylinder mounting base, on which a battery cell positioning cylinder is provided. The battery cell positioning cylinder controls the movement of a lifting plate. A rotating shaft is provided at the bottom of the lifting plate, and a battery cell pressure plate is rotatably connected to the rotating shaft.

[0009] The battery cell is placed on the battery cell turntable, and the vacuum adsorption hole allows the battery cell to be vacuum adsorbed. The battery cell positioning cylinder controls the battery cell pressure plate to descend and press on the battery cell. When the rotation control motor drives the battery cell to rotate, the battery cell pressure plate will also rotate accordingly.

[0010] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the adhesive application robot controls the movement of an adhesive application head. The adhesive application head includes a correction motor mounting plate and a head mounting bracket. The correction motor mounting plate is equipped with an angle correction motor, which can control the angle of the head mounting bracket. The head mounting bracket is equipped with an angle wrapping control cylinder, a rotation control mechanism, a first adhesive application mechanism, a second adhesive application mechanism, and a third adhesive application mechanism. The rotation control mechanism controls the rotation of the third adhesive application mechanism, and the angle wrapping control cylinder can control the movement of the rotation control mechanism.

[0011] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the machine head mounting bracket is further provided with a guide rail, the rotation control mechanism includes a mounting plate, the mounting plate is provided with a rotation control motor, the mounting plate is slidably connected to the guide rail by a slider, the output shaft of the rotation control motor is provided with a rotating plate, and the third adhesive application mechanism is mounted on the rotating plate.

[0012] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the first adhesive application mechanism, the second adhesive application mechanism and the third adhesive application mechanism all include an adhesive application control cylinder. The adhesive application control cylinder controls the movement of a mounting base. The mounting base is provided with an adhesive application component and an adhesive wrapping component. One side of the mounting base is slidably connected to the cylinder body of the adhesive application control cylinder through a slide rail and a slider.

[0013] As an improvement to the device for applying side adhesive to bare battery cells according to the present invention, the adhesive application assembly includes an adhesive application plate, a guide rod, and a spring rod. The spring rod is provided with a spring, one end of the spring rod passes through the adhesive application plate, and the other end is connected to the mounting base. A sliding sleeve is sleeved on the guide rod, and the sliding sleeve is connected to the adhesive application plate.

[0014] The adhesive coating assembly includes an upper mounting plate, a lower mounting plate, an upper adhesive coating plate, and a lower adhesive coating plate. The upper adhesive coating plate is rotatably connected to the upper mounting plate via an upper rotating shaft, on which an upper torsion spring is mounted. The lower adhesive coating plate is rotatably connected to the lower mounting plate via a lower rotating shaft, on which a lower torsion spring is mounted. The adhesive applicator is located between the upper and lower adhesive coating plates. The ends of the upper and lower adhesive coating plates are provided with multiple adsorption holes spaced apart.

[0015] The beneficial effects of this invention are as follows: This invention can select the number of adhesive application mechanisms according to the different lengths of the battery cell side. When the battery cell side is short, only the second and third adhesive application mechanisms can be selected. The second adhesive application mechanism applies adhesive to one side of the battery cell, and the third adhesive application mechanism is controlled by a rotation control mechanism to rotate 90 degrees so that the other end of the adhesive paper applies adhesive to the other side of the battery cell. When the battery cell side is long, three adhesive application mechanisms can be used simultaneously. The first and second adhesive application mechanisms apply adhesive to the long side, and the third adhesive application mechanism is controlled by a rotation control mechanism to rotate 90 degrees so that the other end of the adhesive paper applies adhesive to the short side of the battery cell.

[0016] Another object of the present invention is to provide a method for applying side adhesive to bare battery cells, including an apparatus for applying side adhesive to bare battery cells, and further including the following steps;

[0017] Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied.

[0018] Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell.

[0019] Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively.

[0020] When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments;

[0021] The first adhesive application section is applied as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section of the battery cell. After applying it to one side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees and pushes the other half of the first section of adhesive paper to apply it to one side of the first adhesive application section of the battery cell.

[0022] The second adhesive application process is as follows: the cell turntable rotates 180 degrees to change the cell side, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section of the cell. After applying the adhesive to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell.

[0023] The adhesive application method for the third adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section of the cell. After applying it to that side, the adhesive application mechanism of the third section of the adhesive application machine head rotates 90 degrees and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell.

[0024] The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, the adhesive application robot takes the fourth section of adhesive paper and applies it to one side of the fourth adhesive application section of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the fourth section of adhesive paper to apply it to one side of the fourth adhesive application section of the cell.

[0025] The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other end of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell.

[0026] Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell.

[0027] Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

[0028] The method of applying side adhesive to bare battery cells in this invention uses the rotation of the third adhesive application mechanism on the adhesive application head to apply adhesive at the corner position of the battery cell, which can adapt to the application of adhesive to irregularly shaped battery cells and other regular shapes (such as square or rectangular).

[0029] Another object of the present invention is to provide a method for applying side adhesive to bare battery cells, including an apparatus for applying side adhesive to bare battery cells, and further including the following steps;

[0030] Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied.

[0031] Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell.

[0032] Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively.

[0033] When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments;

[0034] The first adhesive application method is as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section of the battery cell. After applying the adhesive to this side, the battery cell turntable rotates 90 degrees along the trajectory, causing the battery cell to rotate. During the rotation of the battery cell, the other half of the first section of adhesive paper is applied to one side of the first adhesive application section of the battery cell.

[0035] The second adhesive application method is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell.

[0036] The adhesive application method for the third adhesive application section is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell.

[0037] The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, and the adhesive application robot takes the fourth adhesive strip and applies it to one side of the fourth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fourth adhesive strip to apply it to one side of the fourth adhesive application section of the cell.

[0038] The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell.

[0039] Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell.

[0040] Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

[0041] The method for applying side adhesive to bare battery cells in this invention uses the rotation of a battery cell turntable to apply adhesive at the corner positions of the battery cell, which can adapt to the application of adhesive to irregularly shaped battery cells and other regular shapes (such as squares or rectangles). Attached Figure Description

[0042] Figure 1 This is a perspective view of the present invention;

[0043] Figure 2 This is a perspective view of the present invention from another direction;

[0044] Figure 3 This is a top view of the present invention;

[0045] Figure 4 This is a perspective view of the adhesive applicator head of the present invention;

[0046] Figure 5 This is a front view of the adhesive applicator head of the present invention;

[0047] Figure 6 This is a top view of the adhesive applicator head of the present invention;

[0048] Figure 7 This is a cross-sectional view of the adhesive application mechanism of the present invention;

[0049] Figure 8 This is a perspective view of the cell rotating platform of the present invention;

[0050] Figure 9 This is a rendering of the irregularly shaped battery cell after the adhesive coating is completed according to the present invention; Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0053] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0054] like Figures 1-6 As shown, a device for applying side adhesive to a bare battery cell includes a machine base 1. The machine base 1 is equipped with an adhesive application robot 2, an adhesive feeder 3, a battery cell rotation table 4, an adhesive paper coarse positioning CCD 5, and an adhesive paper fine positioning CCD 6. The adhesive feeder 3 is located between the adhesive paper coarse positioning CCD 5 and the adhesive paper fine positioning CCD 6. Each time, the adhesive application robot 2 takes a piece of adhesive paper from the adhesive feeder 3 and applies it to one side of the battery cell or two adjacent sides. After each side of the battery cell is covered with adhesive paper, the battery cell rotation table 4 controls the battery cell to rotate 90 degrees or 180 degrees to change the side for adhesive application.

[0055] Preferably, it also includes a battery cell hot stamping mechanism 7, whereby the battery cell after the adhesive is applied is transported by a person or a six-axis robot to the battery cell hot stamping mechanism 7 for edge hot stamping and shaping;

[0056] The cell heating mechanism 7 includes an intermediate cell positioning platform 71 and multiple heating mechanisms 72 located around the intermediate cell positioning platform 71. Each heating mechanism 72 includes a heating support base, on which a transverse control cylinder is provided. The transverse control cylinder controls a transverse sliding plate to move. A heating plate is provided on the transverse sliding plate. The end of the heating plate is set in a straight line shape, a right angle shape, a wave shape, a V shape, a W shape, or an arc shape. Each heating mechanism heats one side or one corner of the cell.

[0057] Preferably, the cell rotary table 4 includes a rotary table X-axis servo module 41 and a rotary table Y-axis servo module 42. The rotary table X-axis servo module 41 controls the movement of the rotary table Y-axis servo module 42, and the rotary table Y-axis servo module 42 controls the movement of a rotary table support 43. The rotary table support 43 is provided with a cell positioning mechanism 44 and a rotation control motor 46 that controls the rotation of the cell rotary table 45. The cell positioning mechanism 44 is located directly above the cell rotary table 45, and the cell rotary table 45 is provided with a plurality of vacuum adsorption holes 47 spaced apart.

[0058] Preferably, the cell positioning mechanism 44 includes a positioning cylinder mounting base 441, a cell positioning cylinder 442 is provided on the positioning cylinder mounting base 441, the cell positioning cylinder 442 controls the movement of a lifting plate 443, a rotating shaft 444 is provided at the bottom of the lifting plate 443, and a cell pressure plate 445 is rotatably connected to the rotating shaft 444.

[0059] The battery cell is placed on the battery cell turntable 45. The vacuum adsorption hole 47 allows the vacuum adsorption of the battery cell. The battery cell positioning cylinder 442 controls the battery cell pressure plate 445 to descend and press on the battery cell. When the rotation control motor 46 drives the battery cell to rotate, the battery cell pressure plate 445 will also rotate accordingly.

[0060] Preferably, the adhesive applicator 2 controls the movement of an adhesive applicator head 8. The adhesive applicator head 8 includes a correction motor mounting plate 81 and a head mounting bracket 82. The correction motor mounting plate 81 is equipped with an angle correction motor 83, which can control the angle of the head mounting bracket 82. The head mounting bracket 82 is equipped with an angle wrapping control cylinder 84, a rotation control mechanism 85, a first adhesive applicator 86, a second adhesive applicator 87, and a third adhesive applicator 88. The rotation control mechanism 85 controls the rotation of the third adhesive applicator 88. The angle wrapping control cylinder 84 can control the movement of the rotation control mechanism 85. When the third adhesive applicator 88 rotates, the angle wrapping control cylinder 84 pushes the rotation control mechanism 85 to move, which at the same time makes the adhesive plate of the third adhesive applicator 88 press against the corner of the adhesive paper. The adhesive applicator 2 includes an adhesive applicator X-axis servo module, an adhesive applicator Y-axis servo module, and an adhesive applicator Z-axis servo module. The adhesive applicator X-axis servo module controls the movement of the adhesive applicator Y-axis servo module, the movement of the adhesive applicator Y-axis servo module and the adhesive applicator Z-axis servo module, and the adhesive applicator Z-axis servo module controls the lifting and lowering movement of the adhesive applicator head 8.

[0061] Preferably, the machine head mounting bracket 82 is also provided with a guide rail 821, the rotation control mechanism 85 includes a mounting plate 851, the mounting plate 851 is provided with a rotation control motor 852, the mounting plate 851 is slidably connected to the guide rail 821 by a slider, the output shaft of the rotation control motor 852 is provided with a rotating plate 853, and the third adhesive applicator 88 is installed on the rotating plate 853.

[0062] Preferably, the first adhesive application mechanism 86, the second adhesive application mechanism 87, and the third adhesive application mechanism 88 all include an adhesive application control cylinder 861. The adhesive application control cylinder 861 controls the movement of a mounting base 862. The mounting base 862 is provided with an adhesive application component 89 and an adhesive wrapping component 810. One side of the mounting base 862 is slidably connected to the cylinder body of the adhesive application control cylinder 861 via a slide rail and a slider.

[0063] Preferably, the adhesive application assembly 89 includes an adhesive application plate 891, a guide rod 892, and a spring rod 893. A spring 894 is provided on the spring rod 893. One end of the spring rod 893 passes through the adhesive application plate 891, and the other end is connected to the mounting base 862. A sliding sleeve 895 is sleeved on the guide rod 892, and the sliding sleeve 895 is connected to the adhesive application plate 91.

[0064] Preferably, the adhesive coating assembly 810 includes an upper mounting plate 8101, a lower mounting plate 8102, an upper adhesive coating plate 8103, and a lower adhesive coating plate 8104. The upper adhesive coating plate 8103 is rotatably connected to the upper mounting plate 8101 via an upper rotating shaft 8105, on which an upper torsion spring 8106 is provided. The lower adhesive coating plate 8104 is rotatably connected to the lower mounting plate 8102 via a lower rotating shaft 8107, on which a lower torsion spring 8108 is provided. The adhesive applicator 891 is located between the upper adhesive coating plate 8103 and the lower adhesive coating plate 8104. The ends of the upper adhesive coating plate 8103 and the lower adhesive coating plate 8104 are provided with a plurality of adsorption holes spaced apart.

[0065] A method for applying side adhesive to a bare battery cell, including an apparatus for applying side adhesive to the bare battery cell, and further including the following steps;

[0066] Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied.

[0067] Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell 10;

[0068] Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell 10. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively.

[0069] When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments;

[0070] The first adhesive application section is applied as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section 11 of the battery cell. After applying it to one side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees and pushes the other half of the first section of adhesive paper to apply it to one side of the first adhesive application section of the battery cell.

[0071] The second adhesive application section is as follows: the cell turntable rotates 180 degrees to change the side of the cell, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section 12 of the cell. After applying the adhesive paper to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell.

[0072] The adhesive application method for the third adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section 13 of the cell. After applying it to that side, the adhesive application mechanism of the third section of the adhesive application machine head rotates 90 degrees and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell.

[0073] The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, the adhesive application robot takes the fourth section of adhesive paper and applies it to one side of the fourth adhesive application section 14 of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the fourth section of adhesive paper to apply it to one side of the fourth adhesive application section of the cell.

[0074] The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section 15 of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees and pushes the other end of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell.

[0075] Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell.

[0076] Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

[0077] The method of applying side adhesive to bare battery cells in this invention uses the rotation of the third adhesive application mechanism on the adhesive application head to apply adhesive at the corner position of the battery cell, which can adapt to the application of adhesive to irregularly shaped battery cells and other regular shapes (such as square or rectangular).

[0078] A method for applying side adhesive to a bare battery cell, including an apparatus for applying side adhesive to the bare battery cell, and further including the following steps;

[0079] Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied.

[0080] Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell.

[0081] Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively.

[0082] When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments;

[0083] The first adhesive application method is as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section of the battery cell. After applying the adhesive to this side, the battery cell turntable rotates 90 degrees along the trajectory, causing the battery cell to rotate. During the rotation of the battery cell, the other half of the first section of adhesive paper is applied to one side of the first adhesive application section of the battery cell.

[0084] The second adhesive application method is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell.

[0085] The adhesive application method for the third adhesive application section is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell.

[0086] The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, and the adhesive application robot takes the fourth adhesive strip and applies it to one side of the fourth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fourth adhesive strip to apply it to one side of the fourth adhesive application section of the cell.

[0087] The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell.

[0088] Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell.

[0089] Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

[0090] The method for applying side adhesive to bare battery cells in this invention uses the rotation of a battery cell turntable to apply adhesive at the corner positions of the battery cell, which can adapt to the application of adhesive to irregularly shaped battery cells and other regular shapes (such as squares or rectangles).

[0091] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for applying side adhesive to bare battery cells, comprising a machine base, characterized in that, The machine is equipped with a glue-applying robot, a glue supply feeder, a cell rotation table, a coarse positioning CCD for glue paper, and a fine positioning CCD for glue paper. The glue supply feeder is located between the coarse positioning CCD and the fine positioning CCD. Each time, the glue-applying robot picks up a piece of glue paper from the glue supply feeder and applies it to one side or two adjacent sides of the cell. After each side of the cell is covered with glue paper, the cell rotation table controls the cell to rotate 90 degrees or 180 degrees to switch sides for glue application. The adhesive applicator controls the movement of an adhesive applicator head, which includes a correction motor mounting plate and a head mounting bracket. The correction motor mounting plate is equipped with an angle correction motor, which can control the angle of the head mounting bracket. The head mounting bracket is equipped with an angle wrapping control cylinder, a rotation control mechanism, a first adhesive applicator mechanism, a second adhesive applicator mechanism, and a third adhesive applicator mechanism. The rotation control mechanism controls the rotation of the third adhesive applicator mechanism, and the angle wrapping control cylinder can control the movement of the rotation control mechanism.

2. The equipment for applying side adhesive to bare battery cells according to claim 1, characterized in that, It also includes a battery cell hot-pressing mechanism, where the battery cells, after being coated with adhesive, are manually or by a six-axis robot transported to the battery cell hot-pressing mechanism for edge pressing and shaping. The battery cell heat-pressing mechanism includes an intermediate battery cell positioning platform and multiple heat-pressing mechanisms located around the intermediate battery cell positioning platform. Each heat-pressing mechanism includes a heat-pressing support base. The heat-pressing support base is equipped with a transverse control cylinder. The transverse control cylinder controls the movement of a transverse sliding plate. The transverse sliding plate is equipped with a heat-pressing plate. The end of the heat-pressing plate is configured as a straight line shape, a right angle shape, a wave shape, a V shape, a W shape, or an arc shape. Each heat-pressing mechanism heats one side or one corner of the battery cell.

3. The equipment for applying side adhesive to bare battery cells according to claim 1, characterized in that, The battery cell rotary table includes an X-axis servo module and a Y-axis servo module. The X-axis servo module controls the movement of the Y-axis servo module, and the Y-axis servo module controls the movement of a turntable support. The turntable support is equipped with a battery cell positioning mechanism and a rotation control motor that controls the rotation of the battery cell turntable. The battery cell positioning mechanism is located directly above the battery cell turntable, and the battery cell turntable is provided with multiple vacuum adsorption holes spaced apart.

4. The equipment for applying side adhesive to bare battery cells according to claim 3, characterized in that, The battery cell positioning mechanism includes a positioning cylinder mounting base, on which a battery cell positioning cylinder is provided. The battery cell positioning cylinder controls the movement of a lifting plate. A rotating shaft is provided at the bottom of the lifting plate, and a battery cell pressure plate is rotatably connected to the rotating shaft. The battery cell is placed on the battery cell turntable, and the vacuum adsorption hole allows the battery cell to be vacuum adsorbed. The battery cell positioning cylinder controls the battery cell pressure plate to descend and press on the battery cell. When the rotation control motor drives the battery cell to rotate, the battery cell pressure plate will also rotate accordingly.

5. The equipment for applying side adhesive to bare battery cells according to claim 1, characterized in that, The machine head mounting bracket is also equipped with a guide rail. The rotation control mechanism includes a mounting plate, on which a rotation control motor is mounted. The mounting plate is slidably connected to the guide rail via a slider. The output shaft of the rotation control motor is equipped with a rotating plate, and the third adhesive applicator is mounted on the rotating plate.

6. The device for applying side adhesive to bare battery cells according to claim 5, characterized in that, The first, second, and third adhesive application mechanisms all include an adhesive application control cylinder. The adhesive application control cylinder controls the movement of a mounting base. The mounting base is equipped with an adhesive application component and an adhesive wrapping component. One side of the mounting base is slidably connected to the cylinder body of the adhesive application control cylinder via a slide rail and a slider.

7. The device for applying side adhesive to bare battery cells according to claim 6, characterized in that, The adhesive application assembly includes an adhesive application plate, a guide rod, and a spring rod. The spring rod is equipped with a spring, one end of which passes through the adhesive application plate and the other end is connected to the mounting base. A sliding sleeve is fitted on the guide rod and is connected to the adhesive application plate. The adhesive coating assembly includes an upper mounting plate, a lower mounting plate, an upper adhesive coating plate, and a lower adhesive coating plate. The upper adhesive coating plate is rotatably connected to the upper mounting plate via an upper rotating shaft, on which an upper torsion spring is mounted. The lower adhesive coating plate is rotatably connected to the lower mounting plate via a lower rotating shaft, on which a lower torsion spring is mounted. The adhesive applicator is located between the upper and lower adhesive coating plates. The ends of the upper and lower adhesive coating plates are provided with multiple adsorption holes spaced apart.

8. A method for applying side adhesive to a bare battery cell, comprising the apparatus for applying side adhesive to a bare battery cell as described in any one of claims 1 to 7, characterized in that, It also includes the following steps; Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied. Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell. Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively. When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments; The first adhesive application section is applied as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section of the battery cell. After applying it to one side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees and pushes the other half of the first section of adhesive paper to apply it to one side of the first adhesive application section of the battery cell. The second adhesive application process is as follows: the cell turntable rotates 180 degrees to change the cell side, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section of the cell. After applying the adhesive to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell. The adhesive application method for the third adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section of the cell. After applying it to that side, the adhesive application mechanism of the third section of the adhesive application machine head rotates 90 degrees and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell. The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, the adhesive application robot takes the fourth section of adhesive paper and applies it to one side of the fourth adhesive application section of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other half of the fourth section of adhesive paper to apply it to one side of the fourth adhesive application section of the cell. The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section of the cell. After applying it to that side, the third adhesive application mechanism of the adhesive application machine head rotates 90 degrees to push the other end of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell. Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell. Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

9. A method for applying side adhesive to a bare battery cell, comprising the apparatus for applying side adhesive to a bare battery cell as described in any one of claims 1 to 7, characterized in that, It also includes the following steps; Step S1: The uncoated battery cells are manually or by a six-axis robot transported to the battery cell turntable for positioning. The X-axis servo module and the Y-axis servo module of the turntable control the battery cell turntable to move to the position where the adhesive is applied and wait for the adhesive to be applied. Step S2: The adhesive applicator controls the adhesive applicator head to move to the adhesive feeder, pick up a piece of adhesive tape, and apply it to one side of the battery cell. Step S3: After one side of the battery cell is coated with adhesive, the battery cell turntable rotates 90 degrees to switch sides of the battery cell. The adhesive application robot controls the adhesive application head to complete the coating of that side. When the battery cell is square or rectangular, a four-segment adhesive application method is used. The adhesive application robot picks up adhesive paper four times and applies it to the four sides of the battery cell respectively. When the battery cell is irregularly shaped, a five-segment adhesive application method is used to divide the edge of the battery cell into five adhesive application segments; The first adhesive application method is as follows: the adhesive application robot takes the first section of adhesive paper and applies it to one side of the first adhesive application section of the battery cell. After applying the adhesive to this side, the battery cell turntable rotates 90 degrees along the trajectory, causing the battery cell to rotate. During the rotation of the battery cell, the other half of the first section of adhesive paper is applied to one side of the first adhesive application section of the battery cell. The second adhesive application method is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the second section of adhesive paper and applies it to one side of the second adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the second section of adhesive paper to apply it to one side of the second adhesive application section of the cell. The adhesive application method for the third adhesive application section is as follows: the cell turntable drives the cell to rotate 90 degrees, and the adhesive application robot takes the third section of adhesive paper and applies it to one side of the third adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory and pushes the other half of the third section of adhesive paper to apply it to one side of the third adhesive application section of the cell. The adhesive application method for the fourth adhesive application section is as follows: the cell turntable rotates 90 degrees to drive the cell to change sides, and the adhesive application robot takes the fourth adhesive strip and applies it to one side of the fourth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fourth adhesive strip to apply it to one side of the fourth adhesive application section of the cell. The adhesive application method for the fifth adhesive application section is as follows: the cell turntable remains stationary, the adhesive application robot takes the fifth adhesive strip and applies it to one side of the fifth adhesive application section of the cell. After applying it to that side, the cell turntable drives the cell to rotate 90 degrees along the trajectory to push the other half of the fifth adhesive strip to apply it to one side of the fifth adhesive application section of the cell. Step S4: After the battery cell is coated with adhesive, it is manually or by a six-axis robot transported to the middle battery cell positioning platform of the battery cell heating mechanism for positioning. Multiple heating mechanisms are used to heat different edges or corners of the battery cell. Step S5: After the heat treatment is completed, the battery cells are handled and unloaded manually or by a six-axis robot.

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